Adjustable counterweight mechanism applied to tractor test verification link

By designing an adjustable counterweight mechanism, and using a center-of-gravity adjustment platform and locking device driven by a lead screw and motor, the problem of fixing the position of the counterweight was solved, achieving precise adjustment and stability of the counterweight, adapting to different working conditions, and improving the accuracy and stability of the test.

CN121163922BActive Publication Date: 2026-07-24CHINA AGRI UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AGRI UNIV
Filing Date
2025-11-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing counterweight mechanism has a fixed installation position of the counterweight block, which makes it impossible to adjust the center of gravity and lacks a stable locking mechanism. This can lead to displacement or collision during the test, affecting the accuracy and stability of the test results.

Method used

An adjustable counterweight mechanism was designed, which uses a center of gravity adjustment platform driven by a lead screw and a motor, combined with a locking device and a vise mechanism, to achieve precise adjustment and fixation of the counterweight block and ensure the stability of the center of gravity position.

Benefits of technology

It enables precise adjustment of the counterweight, adapts to different working conditions, avoids displacement and collision caused by vibration, and improves the accuracy and stability of test results.

✦ Generated by Eureka AI based on patent content.

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    Figure CN121163922B_ABST
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Abstract

The application discloses an adjustable counterweight mechanism applied to a tractor test verification link and belongs to the technical field of counterweight simulation, which comprises a bearing frame, three fixing lugs are arranged on one side of the bearing frame, four supporting legs are arranged below the bearing frame, a protection pad is arranged below each supporting leg, a rectangular opening is formed in the middle of the bearing frame, a pair of fixing plates is symmetrically arranged on the two sides of the opening, a lead screw one is rotatably arranged between the two fixing plates, the lead screw one is rotatably connected with the fixing plates by penetrating through the two fixing plates at the two ends, a motor is fixedly connected with one end of the lead screw one, a lead screw sleeve is threadedly connected with the lead screw one, and a gravity center adjusting platform is fixedly arranged above the lead screw sleeve. The adjustable counterweight mechanism can not only adjust the weight, but also adjust the left-right weight distribution and the front-rear gravity center, so that different operation conditions or machine forms can be more accurately and conveniently simulated.
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