CN207139634U - The device of pressing bearing in a kind of axis hole - Google Patents

Abstract

The utility model discloses a kind of device of pressing bearing in axis hole, alignment pin is fixed with the groove pedestal of circular flat plate structure, there is the prong of similar ear at the groove pedestal both ends, facilitate bolt locking on the table, there is pilot sleeve above the groove pedestal, the pilot sleeve lower end inner wall is provided with annular groove, and the pressure head being adapted is provided with above the pilot sleeve.The utility model is ingenious in design, simple in construction, simple operation, bearing in driving gear axis hole can effectively and reliably be positioned, shaft strength is uniform during ensuring press fitting, avoids bearing and deforms or damage, so as to ensure that the performance of bearing and service life.

Description

The device of pressing bearing in a kind of axis hole

Technical field

The utility model belongs to technical field of tooling clamps, specifically, more particularly to for nonstandard driving gear axis hole The positioner of interior pressing bearing.

Background technology

At present, mechanized equipment manufacturing firm is usually in the mode of nonstandard driving gear axis hole internal pressure dress bearing：First will be main Moving gear is placed in locating slot, is then placed on bearing at the aperture of driving gear axis hole, then pushes down bearing with an axle, Beat the upper end of axle with strength with hammer, bearing press mounting is entered in driving gear shaft hole.Deficiency present in aforesaid way is；

1) during press fitting, the metal surface of bearing easily deforms upon under the influence of percussion power, the matter of bearing Amount performance and used life does not ensure；

2) it is pressed by the way of manually tapping, shaft strength is uneven, easily causes bearing out-of-flatness or skew, difficult To ensure the concentricity of bearing and crankshaft hole, press fitting it is second-rate；

3) experience with operator and qualification are carried out entirely for press fitting every time, random big, it is impossible to ensure that uniformity is given birth to Production；

4) press fitting of bearing is using full manual operations, and the labor intensity of operator is big, and production efficiency is low.

The content of the invention

In order to overcome above-mentioned deficiency, technical problem to be solved in the utility model is that providing one kind is able to ensure that bearing The device of the pressing bearing of uniform force.

The technical solution of the utility model is as follows：A kind of device in driving gear axis hole internal pressure dress bearing, including groove Pedestal 4, alignment pin 3, pilot sleeve 2, pressure head 1.It is characterized in that：Groove pedestal 4 is circular groove slab construction, the recess-based There is the prong 4a of similar ear at the both ends of seat 4, and convenient bolt locks on the workbench of pneumatic press；In groove pedestal 4 Two alignment pins 3 are inside fixed with, for fixing driving gear, prevent displacement；There is pilot sleeve 2 top of the groove pedestal 4, should Pilot sleeve lower end inner wall is provided with annular groove 2a, and the pressure head 1 being adapted is provided with the top of the pilot sleeve 2.

The utility model is placed on pneumatic press and used, for driving gear axis hole internal pressure fill bearing when, Driving gear insertion is placed in groove pedestal first, makes the opening of driving gear axis hole face-up, driving gear card On hole be embedded on the alignment pin of groove pedestal, prevent driving gear to be subjected to displacement relative to alignment pin, then annular groove face The sleeve of opening is enclosed on the axis hole of driving gear, and then unilateral bearing is put into pilot sleeve, secondly handle and pilot sleeve The pressure head being adapted is put into pilot sleeve, and the staking punch of last operation pneumatic press is descending, staking punch is oppressed pressure head, and lead to Pressure head is crossed to enter bearing press mounting in crankshaft hole.

Due to that during press fitting, the metal outer wall stress of unilateral bearing, effectively can prevent bearing from deforming even Fall apart, the service life of bearing is secure；Annular groove and driving gear axis hole and pressure head on pilot sleeve lower end inner wall is mutual It is embedding and, unilateral bearing is play the guiding role, with ensure unilateral bearing under stress impartially linear motion enter driving tooth In the axis hole of wheel, unilateral bearing uniform force when being so pressed, out-of-flatness or skew, unilateral bearing and driving gear will not occur The concentricity of axis hole can guarantee that unanimously, so as to substantially increase the quality of press fitting；The utility model is carried out by pneumatic press Press fitting, it is not only simple, convenient, and also the labor intensity of operator is small, and production efficiency is high, disclosure satisfy that homogeneity of product The requirement of production.

The alignment pin 3 is vertically embedded into the groove of groove pedestal 4, and both are tightly fixed.Above scheme is on the one hand Assembling is simple, alignment pin can be made to be connected with groove pedestal firm；On the other hand, it is simple in construction, compact, be advantageous to process and drop Low production cost.

In order to simplify structure, strengthen stability, the groove pedestal 4 is circular groove slab construction, the both ends of groove pedestal 4 There is the prong 4a of similar ear, convenient bolt locks on the workbench of pneumatic press.

In order to facilitate processing and fabricating, production cost is reduced, the profile of the pressure head 1 is up big and down small two-period form cylinder.

The beneficial effects of the utility model are that the utility model is ingenious in design, simple in construction, simple operation, can be to master The bearing of moving gear axis hole is effectively and reliably positioned, with ensure press fitting when shaft strength it is uniform, avoid bearing and become Shape or damage, so as to ensure that the performance profit service life of bearing.

Brief description of the drawings

The utility model is further illustrated with reference to the accompanying drawings and examples.

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

Fig. 2 is assembling structure schematic diagram of the present utility model.

Fig. 3 is groove pedestal top view.

Embodiment

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

As shown in Figure 1, Figure 2, Figure 3 shows, the utility model is by 1 group of groove pedestal 4, alignment pin 3, pilot sleeve 2 and pressure head Into, wherein, groove pedestal 4 is circular groove slab construction, and alignment pin 3, the both ends of groove pedestal 4 are fixed with groove pedestal 4 There is the prong 4a of similar ear, there is pilot sleeve 2 top of the groove pedestal 4, and the pilot sleeve lower end inner wall is provided with annular groove 2a, the pressure head 1 being adapted is provided with the top of the pilot sleeve 2, the pressure head profile is up big and down small two-period form cylinder.

Operation principle of the present utility model is as follows：

1) the utility model is placed on pneumatic press（It is not drawn into figure）Work top on, and proofread, Ran Houyong Bolt locking frock, ensures that the pneumatic press alignment of shafts is consistent with tool locating center；

2) pressure head 1 is removed, the insertion of driving gear 5 is placed in groove pedestal 4, then the annular groove opening of pilot sleeve Face 2a is enclosed on the axis hole of driving gear, and then unilateral bearing is put into pilot sleeve, and secondly handle is adapted with pilot sleeve Pressure head be put into pilot sleeve；

3）It is descending to operate the staking punch of pneumatic press, staking punch is oppressed pressure head 1, and enter bearing press mounting by pressure head In the axis hole of driving gear.

Claims (5)

1. the device of pressing bearing in a kind of axis hole, it is characterized in that：By groove pedestal 4, alignment pin 3, pilot sleeve 2,1 group of pressure head Into；Pilot sleeve 2 is enclosed on the axis hole of driving gear, and unilateral bearing is put in pilot sleeve 2, and will be fitted with the phase of pilot sleeve 2 The pressure head 1 matched somebody with somebody is put into pilot sleeve 2, and it is descending to operate the staking punch of pneumatic press, staking punch is oppressed pressure head 1, and pass through Pressure head 1 enters bearing press mounting in hole.

2. the device of pressing bearing in a kind of axis hole according to claim 1, it is characterized in that：Groove pedestal 4 is circular recessed There is the prong 4a of similar ear at groove slab construction, the both ends of the groove pedestal 4.

3. the device of pressing bearing in a kind of axis hole according to claim 1 or 2, it is characterized in that：It is fixed in groove pedestal 4 There are two alignment pins 3, the bodily form of the alignment pin is two sections, and upper end is cone, and lower end is cylinder.

4. the device of pressing bearing in a kind of axis hole according to claim 1 or 2, it is characterized in that：The groove pedestal 4 it is upper There is pilot sleeve 2 side, and the pilot sleeve lower end inner wall is provided with annular groove 2a.

5. the device of pressing bearing in a kind of axis hole according to claim 1, it is characterized in that：The top of pilot sleeve 2 is set The pressure head 1 being adapted is equipped with, this profile of pressure head 1 is up big and down small two-period form cylinder.