CN104890462A

CN104890462A - Thrusting rod capable of preventing snap spring from falling

Info

Publication number: CN104890462A
Application number: CN201510352769.4A
Authority: CN
Inventors: 徐应权
Original assignee: Anqing Correspondent Automobile Component Co Ltd
Current assignee: Anqing Huitong Auto Parts Co., Ltd
Priority date: 2015-06-25
Filing date: 2015-06-25
Publication date: 2015-09-09
Anticipated expiration: 2035-06-25
Also published as: CN104890462B

Abstract

The invention discloses a thrusting rod capable of preventing a snap spring from falling. The joint of the thrusting rod is composed of an end, a spherical hinge, a retainer, a snap spring and a hold-down washer; the spherical hinge, the retainer and the snap spring are pressed into the end by use of a special clamp; the retainer covers the spherical hinge; the snap spring goes into the snap ring groove of the end; the part, projecting from the snap spring groove, of the snap spring is arranged on the outer side of the retainer; the hold-down washer is arranged between the end and the snap spring; the outer diameter size of the hold-down washer is in interference fit with the inner diameter size of the end; the convex sharp corner of the hold-down washer is inserted into the inner ring of the snap spring. According to the thrusting rod capable of preventing the snap spring from falling, the hold-down washer is arranged between the end and the snap spring, the hold-down washer is pressed into the end by use of a pressure tool, and meanwhile, the convex sharp corner of the hold-down washer is inserted into the inner ring of the snap spring to fix the snap spring and prevent the snap spring from displacement in the operation of the thrusting rod, and therefore, the effect of preventing the snap spring is achieved; the thrusting rod is simple in structure and convenient to assemble.

Description

A kind of propelling rod of anti-sticking spring-drop

Technical field

The present invention relates to a kind of propelling rod, especially a kind of propelling rod of anti-sticking spring-drop.

Background technology

The effect of propelling rod is transmission longitudinal loading, moment of torsion, prevents vehicle bridge to be shifted, be widely used on heavy motor vehicle, which increase the ground connection property of heavy motor vehicle particularly heavy special-use vehicle tire, ensure that the harmony of load between two bridges under various operating mode or many bridges, during in two bridge balance suspensions, propelling rod is averagely allocated to load, back axle, as propelling rod inefficacy can cause middle back axle to produce displacement, cause leaf spring and tire to create friction and cause tire premature wear, some seriousness traffic accidents such as to blow out time serious; By to after market statistics, propelling rod dominant failure mode is that jump ring comes off, account for that whole propelling rod lost efficacy after sale about 70%.The many methods by increasing jump ring thickness of current domestic each propelling rod producer improve jump ring dropping situations, but cost increases, and can not solve the problem that jump ring comes off completely.

Summary of the invention

For the problems referred to above, it is simple that the problem that quasi-solution of the present invention is determined is to provide a kind of structure, can solve the propelling rod that jump ring comes off from source.

For solving the problem, the present invention by the following technical solutions, a kind of propelling rod of anti-sticking spring-drop, propulsion rod joint is made up of termination, ball pivot, guard ring, jump ring and packing washer; Ball pivot, guard ring, jump ring are press-fited by unit clamp and enter termination, and guard ring encases ball pivot, and jump ring enters in the jump-ring slot of termination, and jump ring gives prominence to the part gear of jump-ring slot outside guard ring; Packing washer is located between termination and jump ring, the outside dimension of packing washer and the internal diameter size interference fit of termination, and the wedge angle that packing washer protrudes inserts the inner ring of jump ring.

The present invention by establishing packing washer between termination and jump ring, by compression tools, packing washer is pressed in termination, fix jump ring with the inner ring of the wedge angle insertion jump ring of packing washer protrusion simultaneously, it is prevented to be subjected to displacement in propelling rod runs, play the effect preventing jump ring from coming off, structure of the present invention is simple, easy to assembly.

Accompanying drawing explanation

Fig. 1 is the structural representation of crankshaft packaging box of the present invention.

Detailed description of the invention

As shown in Figure 1, a kind of propelling rod of anti-sticking spring-drop, propulsion rod joint is made up of termination 1, ball pivot 2, guard ring 3, jump ring 4 and packing washer 5; Ball pivot 2, guard ring 3, jump ring 4 are press-fited by unit clamp and enter termination 1, and guard ring 3 encases ball pivot 2, and jump ring 4 enters in the jump-ring slot 6 of termination 1, and jump ring 4 gives prominence to the part gear of jump-ring slot 6 outside guard ring 3; Packing washer 5 is located between termination 1 and jump ring 4, the outside dimension of packing washer 5 and the internal diameter size interference fit of termination 1, and the wedge angle that packing washer 5 protrudes inserts the inner ring of jump ring 4.

Common propelling rod, in operational process, stressedly exceedes the scope relating to permission, and ball pivot produces with termination and rotates relative to micro-, thus produces inside centripetal force, to jump ring generation effect, easily causes coming off of jump ring.

In the present embodiment, to be press-fited by unit clamp by the ball pivot 2 in the present embodiment, jump ring 4 and enter termination 1, jump ring 4 enters in the jump-ring slot 6 of termination 1, prevents ball pivot 2 from scurrying out; Packing washer 5 outside dimension and the internal diameter size of termination 1 are crossed to win and are coordinated, by the pressing-in force of 50KN-70KN, packing washer 5 is pressed in termination 1, plane close contact to the lower plane and jump ring 4 of packing washer 5, the wedge angle that packing washer 5 protrudes inserts the inner ring of jump ring 4, restriction jump ring 4 because of stressed inside contraction, thus thoroughly solves jump ring 4 and departs from problem from source.

Claims

1. a propelling rod for anti-sticking spring-drop, is characterized in that: propulsion rod joint is made up of termination (1), ball pivot (2), guard ring (3), jump ring (4) and packing washer (5); Ball pivot (2), guard ring (3), jump ring (4) are press-fited by unit clamp and enter termination (1), guard ring (3) encases ball pivot (2), jump ring (4) enters in the jump-ring slot (6) of termination (1), and the part gear of the outstanding jump-ring slot (6) of jump ring (4) is in guard ring (3) outside; Packing washer (5) is located between termination (1) and jump ring (4), the outside dimension of packing washer (5) and the internal diameter size interference fit of termination (1), and the wedge angle that packing washer (5) protrudes inserts the inner ring of jump ring (4).