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Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear

A hydraulic steering gear and rack and pinion technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., to reduce investment, avoid deformation, and improve production efficiency

Inactive Publication Date: 2015-01-07
WUHU HENGLONG AUTO STEERING SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a rack-and-pinion type hydraulic steering gear rack shaft press-fitting device and its press-fitting method for the deficiencies in the prior art, so as to achieve The purpose of avoiding deformation when the retaining ring is press-fitted in the groove of the rack retaining ring

Method used

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  • Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear
  • Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear
  • Retainer ring press-fitting device and retainer ring press-fitting method for rack shaft of pinion-and-rack type hydraulic steering gear

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Embodiment Construction

[0020] Such as Figure 1 ~ Figure 2 A rack-and-pinion type hydraulic steering gear rack shaft retaining ring pressing device is shown, including a workbench 1, a shaft retaining ring fixture set on the workbench 1, a steering gear rack 2, and a steering gear rack. The piston 15 on the bar 2, the press-fit mechanism that presses the steering gear rack 2 to the shaft retaining ring 3 in the shaft retaining ring fixture and snaps into the retaining ring groove 4 of the steering gear rack 2, presses the shaft The return mechanism that presses on the steering gear rack 2 behind the retaining ring 3. A bracket 5 is provided on the workbench 1 , and a support seat 6 is connected to the bottom of the workbench 1 . The press-fitting mechanism includes an upper cylinder 7 connected to the top of the support 5, an upper pressing head 8 connected with the piston rod of the upper cylinder 7, and the upper pressing head 8 is arranged above the retaining ring clamp for the shaft.

[0021] ...

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Abstract

The invention discloses a retainer ring press-fitting device for a rack shaft of a pinion-and-rack type hydraulic steering gear. The device comprises a workbench, a shaft retainer ring clamp, a steering gear rack, a piston, a press-fitting mechanism and a reset mechanism, the shaft retainer ring clamp is arranged on the workbench, the piston is arranged on the steering gear rack, the press-fitting mechanism is used for downwardly pressing the steering gear rack until a shaft retainer ring in the shaft retainer ring clamp is clamped into a retainer ring groove of the steering gear rack, and the reset mechanism is used for upwardly pressing the steering gear rack after press fitting of the shaft retainer ring is finished. By adoption of the structure, the device has the advantages that deformation of the shaft retainer ring is avoided, and whether press fitting is completed or not is completely guaranteed by equipment which alarms if press fitting is unqualified; the special positioning clamp is designed with an inner conical face to effectively limit the retainer ring, and a lower pressing head jacks the rack end face upwards after press fitting is finished so as to pop a rack piston assembly out of the clamp.

Description

technical field [0001] The invention relates to the field of automobile steering gears, in particular to a press-fitting device and a press-fitting method for a retaining ring for a rack shaft of a rack-and-pinion hydraulic steering gear. Background technique [0002] At present, rack and pinion hydraulic steering gears all reciprocate left and right in the steering gear oil cylinder through the rack piston, and a pressure difference is generated in the left and right cavities of the piston to generate hydraulic power assistance. From the perspective of product design of the hydraulic steering gear, it is mainly composed of the piston and the retaining ring for the shaft. After the retaining ring for the rack shaft and the piston are assembled, the pressure release force of the rack piston is ensured by rolling riveting between the piston and the rack bracket. At this time The assembly process of the retaining ring for the shaft of the hydraulically assisted piston limit is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/027
CPCB23P19/027
Inventor 梁谨宁心莲姚剑鸣
Owner WUHU HENGLONG AUTO STEERING SYST
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