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A device for detecting oil leakage at the hydraulic cylinder end of a rack and pinion hydraulic steering gear

A hydraulic steering gear, rack and pinion technology, applied in the field of measurement, can solve the problems of low efficiency and achieve high detection efficiency

Active Publication Date: 2018-04-03
YUBEI XINXIANG POWER STEERING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this detection device is that it takes 24 hours to detect a product, and the efficiency is low.

Method used

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  • A device for detecting oil leakage at the hydraulic cylinder end of a rack and pinion hydraulic steering gear
  • A device for detecting oil leakage at the hydraulic cylinder end of a rack and pinion hydraulic steering gear
  • A device for detecting oil leakage at the hydraulic cylinder end of a rack and pinion hydraulic steering gear

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Experimental program
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Embodiment Construction

[0007] In order to solve the defects existing in the prior art, the structure of applying radial force to the ball head of the inner tie rod at the outer end of the rack is improved. This improved technical solution is as follows: Figure 1-3 As shown, the sleeve 2 is slidingly sleeved on the ball head 10 of the inner tie rod at the outer end of the rack 3, and the screw thread at the end of the cylinder piston rod 9 fixed on the test bench 7 matches the threaded hole of the pressure sensor 1 body. , the threaded hole on the front side of the pressure sensor body is matched with the thread at one end of the connecting rod 8, and the other end of the connecting rod is connected with the sleeve, such as welded connection, or threaded connection. At this time, the outer wall of the sleeve A cylinder is arranged on it, and a threaded hole matched with the thread of the connecting rod is arranged in the cylinder. In order to ensure that the pressure exerted by the piston rod on the...

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PUM

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Abstract

The invention discloses an oil leakage detecting device for the hydraulic cylinder end of a gear-rack hydraulic steering gear. The oil leakage detecting device comprises a test bed, a rack and an inner pull rod ball head located at the outer end of the rack; a piston rod of an oil cylinder fixed to the test bed is opposite to the ball center of the inner pull rod ball head and perpendicular to the rack, the piston rod is connected with a pressure sensor, the inner pull rod ball head is sleeved with a sleeve, and a connecting rod is arranged between the pressure sensor and the sleeve. Threads are arranged at the two ends of the connecting rod and matched with a threaded hole in the pressure sensor and a threaded hole in a sleeve body correspondingly. The oil leakage detecting device has the remarkable advantage of being high in detection efficiency.

Description

Technical field: [0001] The invention relates to a measurement technology, in particular to a detection device for oil leakage at the hydraulic cylinder end of a rack and pinion hydraulic steering gear. Background technique: [0002] The rack and pinion hydraulic steering gear is equipped with multiple oil seal components such as hydraulic cylinder, support sleeve oil seal, rack and rack piston, and hydraulic cylinder oil seal. When the steering gear is working, the rack reciprocates axially in the hydraulic cylinder. When the above When the oil seal assembly does not meet the requirements, there will be a radial gap between the rack and the end of the oil cylinder and oil leakage will occur. For this reason, the steering gear needs to be inspected before leaving the factory. The structure of the current inspection device is that one end of the tie rod and the end of the rack The other end of the pull rod is connected with the piston rod of the detection cylinder. There is a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62D5/30
CPCB62D5/30
Inventor 王勇杰张铁山赵艳陈剑锐刘健邓华伟高超刘科阳崔金龙赵佳佳孙宁李国立韦诗峰
Owner YUBEI XINXIANG POWER STEERING SYST