Dumper lifting hydraulic cylinder simulation working condition test device

A test device and technology of hydraulic cylinders, applied in the field of hydraulic cylinders, can solve the problems of disassembly, return to the factory, high repair costs, car crashes, failure to verify the performance of hydraulic cylinders, etc., and achieve low design and production costs, simple principles and structures. , the effect of avoiding collision damage

Pending Publication Date: 2021-12-14
XCMG HYDRAULICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned test cannot verify the performance of the hydraulic cylinder under actual working conditions. Once there is a problem with the installation, the cost of disassembly, return to the factory, and repair will be too high.

Method used

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  • Dumper lifting hydraulic cylinder simulation working condition test device
  • Dumper lifting hydraulic cylinder simulation working condition test device
  • Dumper lifting hydraulic cylinder simulation working condition test device

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0022] The following is a specific embodiment of the present invention, and the present invention will be further described in conjunction with the accompanying drawings.

[0023] combine Figure 1 to Figure 4 As shown, a dump truck lifting hydraulic cylinder simulated working condition test device, including the tested hydraulic cylinder 5, a simulated installation stand and a loading device.

[0024] The simulated installation stand includes a foundation 1 and a loading compartment 6 . The fixed base plate 2 is fixed on the foundation 1 by anchor bolts, and a plurality of rectangularly distributed threaded holes are opened on the fixed base plate 2, and the threaded holes of the fixed base plate 2 are connected with a support I3. Support I3 is hinged with the pin shaft of cylinder 5 of the tested hydraulic cylinder. The front end of the loading compartment 6 is provided with a plurality of threaded holes distributed in a rectangular shape, and the threaded holes at the fro...

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PUM

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Abstract

The invention discloses a dumper lifting hydraulic cylinder simulation working condition test device, and belongs to the technical field of hydraulic cylinders. A fixed bottom plate and a support IV are mounted on a foundation; a threaded hole of the fixed bottom plate is connected with a support I; the support I is hinged with a cylinder barrel pin shaft of a tested hydraulic cylinder; and the rear end of a loading carriage is hinged to the support IV, and a limiting block is fixed to the lower position of the rear end of the loading carriage. A threaded hole at the front end of the loading carriage is connected with a support II; the support II is hinged with a piston rod sleeve pin shaft of a tested oil cylinder; a return guide device is fixed at the lower side of the loading carriage; a guide counter bore is formed in the foundation; uniformly distributed bolts II are fixed on the loading carriage; and load blocks are selectively mounted on the bolts II. According to the device, the number of the load blocks is adjusted to match the actual load, and the related working conditions of a lifting cylinder during working are simulated to the maximum extent, so that the related performance such as the extension sequence, jamming, cylinder scoring, jittering, oil leakage and service life of the lifting cylinder are tested, the potential safety hazard is eliminated, and the related cost is greatly reduced.

Description

technical field [0001] The invention relates to the technical field of hydraulic cylinders, in particular to a test device for simulating operating conditions of a dump truck lifting hydraulic cylinder. Background technique [0002] With the development of the domestic economy, infrastructure construction is in the ascendant, and more and more dump trucks are used in high-grade road maintenance and earthwork. As a key component of a dump truck, the reliability of the lift hydraulic cylinder has attracted more and more attention from the main engine customers, especially the simulated working condition test before its factory installation is a key step to verify its performance. [0003] At present, domestic dump truck lifting hydraulic cylinder manufacturers basically have no relevant test methods, and most hydraulic cylinder test benches are in the factory test stage. The conventional method is: the test device of the dump truck lift cylinder is generally placed horizontal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B19/00
CPCF15B19/00
Inventor 李永奇王伟伟刘庆教李小明张强汤宝石
Owner XCMG HYDRAULICS CO LTD
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