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Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The working conditions of handling stones with the stone forklift loader requires the loader equipment to have a large breakout force at any lift height in the operating range, which has a high requirement on the breakout force of the loader equipment. Based on the market research, the performance adaptability improvement of the equipment is studied, the articulation point position of the link mechanism of the equipment is optimized and analyzed, and the breakout force of the equipment is optimized while meeting the performance requirements of the mechanism transmission angle, so as to improve the product adaptability. It realizes the stacking of stones according to the specified number of layers and the ability of reclaiming, meets the requirements of the users' working conditions and improves the brand value of the product. [ABSTRACT FROM AUTHOR]

In response to the problem that the external noise of 106.7 dB(A) of a new loader prototype to be sold in the international market fails to meet the noise requirement of 105 dB(A) in the target sales destination, after analyzing the noise data of the original loader, it is found that the main noise sources of the external noise are the cooling fan and the silencer assembly, with a main noise frequency band of 280 Hz to 8 700 Hz. By analyzing the noise data of two states of removing acoustic wool wrapping the cooling fan and silencer and introducing exhaust outside, it is found that the noise of the cooling fan is mainly in the frequency band of 90 Hz to 2 800 Hz, the noise of the silencer assembly is mainly in the frequency band above 2 800 Hz, and both overlaps with the main noise reduction frequency band, so the optimization of noise of the cooling fan and the silencer assembly becomes two important directions for overall noise reduction. Finally, by reducing the rotational speed of the cooling fan from 2 400 r/min to 2 200 r/min, installing the silencer inside the rear cover, pasting acoustic wool inside the rear cover and introducing exhaust outside, the external noise of the loader is reduced from the original 106.7 dB(A) to 104.84 dB(A) to achieve the purpose of noise reduction. [ABSTRACT FROM AUTHOR]

As the key load-bearing parts of the loader, the reliability level of the front and rear axles has always been one of the key concerns of the loader manufacturers and customers. Reasonable determination of the loadbearing capacity of the front and rear axles of the loader is of great significance to the reliability design of the front and rear axles. The front and rear axles of the loader mainly bear the axle load, the torque of driving the tyre rotation and the braking torque of stopping the tire rotation, and the load value depends on the working conditions and technical state of the loader. In order to determine the load-bearing capacity of the front and rear axles of the loader, the load spectrum of the front and rear axles of the loader under specific working conditions can be tested to obtain relevant data. However, the load spectrum test requires certain test resources, and in practice, it is not easy to obtain the load spectrum data of the extremely heavy load conditions. Therefore, it is a feasible method to analyze the typical working conditions and technical state of the loader and to calculate the maximum load on the front and rear axles to determine the bearing capacity of the front and rear axles of the loader. [ABSTRACT FROM AUTHOR]

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Taking seat of 5 t loader as research object, comfor t test and evaluation research are carried out. The research results show that, under stop condition, main frequency band of seat vibration is above 40 Hz, which is far away from human body sensitive section; under dynamic condition, main frequency band is between 0 to 20 Hz, and the peak value is especially prominent in human body sensitive section; root-mean-square value of seat acceleration under dynamic condition is much higher than that under stop condition; with root-mean-square value of Z-weighted acceleration as evaluation index, subjective feeling of human body is no discomfort under stop condition, it is very uncomfortable when advancing on a flat road, and subjective feeling of human body is extremely uncomfortable when advancing on an uneven road and performing V-shaped operation. Therefore, the loader seat has good ride comfort under stop condition, but poor ride comfort under driving condition, and has much room for improvement. [ABSTRACT FROM AUTHOR]

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The market feedback has reported that articulated system of a type of wheel loader has a serious shaking problem. The shaking phenomenon is described, as well as its harm to people and machines. The working principle of articulated system is briefly described; based on external failure mode, the possible failure causes are analyzed, calculated and compared step by step to find out the failure causes, and targeted and feasible improvement scheme is proposed. After the wheel loader is replaced with a new articulated structure, the three-year data feedback analysis histogram shows that the improvement effect has achieved the expected purpose, and the relevant improvement measures have a certain reference value for the selection and application of key parts in the future. [ABSTRACT FROM AUTHOR]

Copyright of Construction Machinery & Equipment is the property of Construction Machinery & Equipment Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)