CN206495908U - A kind of modified three ball pin style constant speed universal joint - Google Patents

Abstract

The utility model discloses a kind of modified three ball pin style constant speed universal joint, including spider, the first-class at an angle of the spider is provided with three gudgeons, it is arranged with each gudgeon outside a roller, the spider and is set with pot shell, is provided with the inwall of the pot shell and one-to-one three guide grooves of the roller, and the guide groove coordinates with the roller-coaster, the side face of the roller is straight in the axial direction, correspondingly, and the side wall of the guide groove is also straight.The utility model is reasonable in design, simple in construction, by making the roller of cydariform into side face axially straight roller, coordinates with the straight guide groove of side wall, fit clearance is reduced into below 0.1mm, amount of jitter when using is greatly reduced.

Description

A kind of modified three ball pin style constant speed universal joint

Technical field

The utility model belongs to automobile technical field, specifically, more particularly to a kind of modified tripod constant-velocity ten thousand Xiang Jie.

Background technology

So-called universal joint, is referred to being connected the mechanical structure for realizing the transmission of out-of-alignment power using ball-type, is current one The individual mechanical part being in daily use.The tripod universal joint commonly used at present includes third office on spider, spider and is provided with Roller is arranged with gudgeon, gudgeon.Be set with outside the spider for install roller on pot shell, pot shell has and three roller phases vertically The guide groove of adaptation.The setting of gudgeon has certain angle of inclination, is the roller for layout angle, therefore on gudgeon It is also what is be obliquely installed.The roller of prior art is in cydariform, corresponding, and the side wall of guide groove is also in circular arc, is being tilted Under state, the side face of roller circular arc is slided on guide groove inner surface, while holding point is contacted, roller on one side on one point it is upper with The guide groove holding point is contacted, and axially or with axially vertical direction is slided on one side.But this structure in the prior art, In the using and test of actual vehicle, or amount of jitter is too big.

Utility model content

In view of the drawbacks described above of prior art, technical problem to be solved in the utility model is to provide a kind of modified Three ball pin style constant speed universal joint.

Technical solutions of the utility model are as follows：A kind of modified three ball pin style constant speed universal joint, including spider, this three The pin first-class at an angle of frame is provided with three gudgeons, is arranged with outside a roller, the spider and is set with each gudgeon There is pot shell, be provided with the inwall of the pot shell and one-to-one three guide grooves of the roller, and the guide groove and the rolling Slipping coordinates, and the side face of the roller is straight in the axial direction, correspondingly, and the side wall of the guide groove is also straight.

Further, between the external diametrical extent of the roller is between 38.19mm~38.99mm, the guide groove two side It is 38.5mm~39.1mm away from scope.

Using above technical scheme, relative to prior art, the utility model is by by the roller of cydariform in the prior art Side face axially straight roller is changed over, corresponding, the side wall for being directed to groove also makes straight wall into, meanwhile, by the outer of roller Spacing increase between the two side walls in footpath and guide groove, can reduce roller and be oriented to the clearance space of groove sidewall.

Beneficial effect：The utility model is reasonable in design, simple in construction, axially straight by making the roller of cydariform into side face Roller, coordinate with the straight guide groove of side wall, fit clearance be reduced to below 0.1mm, greatly reduced when using Amount of jitter.

Brief description of the drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

The utility model is described in further detail with reference to the accompanying drawings and examples：

A kind of modified three ball pin style constant speed universal joint as shown in Figure 1, with a spider 1, on the spider 1 At an angle is provided with three gudgeons 2.It is arranged with each gudgeon 2 outside a roller 3, spider 1 and is set with pot shell 4.Should Be provided with the inwall of pot shell 4 with 3 one-to-one three guide groove 4a of roller, and guide groove 4a is slidably matched with roller 3. The external diametrical extent of roller 3 is between preferably 38.6mm in 38.19mm~38.99mm, the present embodiment, guide groove 4a two sides Spacing range is preferably 38.8mm in 38.5mm~39.1mm, the present embodiment.The side face of roller 3 is straight in the axial direction, therewith Accordingly, guide groove 4a side wall is also straight.

In specific implementation process, relative to prior art, the utility model is by by the roller of cydariform in the prior art Side face axially straight roller 3 is changed over, corresponding, the side wall for being directed to groove 4a also makes straight wall into, meanwhile, by roller 3 Two side walls of external diameter and guide groove 4a between spacing increase, the clearance space of roller 3 and guide groove 4a sides wall can be reduced. GRBN-1000 internal spherical cage lubricating grease is also injected between roller 3 and guide groove 4a as lubricating grease, replaces the G2 profits used now Consistent lubricant, plays better stabilization action and uses.

Preferred embodiment of the present utility model described in detail above.It should be appreciated that the ordinary skill people of this area Member just can make many modifications and variations without creative work according to design of the present utility model.Therefore, all this technology necks Technical staff passes through logic analysis, reasoning or limited reality on the basis of existing technology according to design of the present utility model in domain Available technical scheme is tested, all should be in the protection domain being defined in the patent claims.

Claims (2)

1. a kind of modified three ball pin style constant speed universal joint, including spider (1), are set in the first-class at an angle of the spider (1) There are three gudgeons (2), be arranged with each gudgeon (2) outside a roller (3), the spider (1) and be set with pot shell (4), it is provided with the inwall of the pot shell (4) and one-to-one three guide grooves (4a) of the roller (3), and the guide groove (4a) is slidably matched with the roller (3), it is characterised in that：The side face of the roller (3) is straight in the axial direction, corresponds to therewith Ground, the side wall of the guide groove (4a) is also straight.

2. modified three ball pin style constant speed universal joint as claimed in claim 1, it is characterised in that：The external diameter of the roller (3) Scope is that the spacing range between 38.19mm~38.99mm, guide groove (4a) two side is 38.5mm~39.1mm.