CN214685106U

CN214685106U - Novel bearing press-fitting expansion mechanism

Info

Publication number: CN214685106U
Application number: CN202120739222.0U
Authority: CN
Inventors: 李高飞; 沈晨
Original assignee: Zf Foton Automatic Transmission Jiaxing Co ltd
Current assignee: Zf Foton Automatic Transmission Jiaxing Co ltd
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-11-12
Anticipated expiration: 2031-04-12

Abstract

The utility model belongs to the machining field relates to a novel bearing pressure equipment tight mechanism that expands, including the pressure head of locating plunger one end, a plurality of grooves of having arranged along circumference in the outside of this pressure head, the one end in this bar groove extends to the one end that the pressure head deviates from the plunger, is equipped with a clamping jaw in every bar groove, and the one end that this clamping jaw deviates from the plunger has the clamping jaw head, be connected with elastic element between the inboard of pressure head and the bar groove, the outside of clamping jaw head is the protruding bar groove outside of protruding under the elastic element lax state, and the outside of clamping jaw head flushes or caves in the bar groove with the bar groove outside under elastic element compression state. This application can become the fixed mode of clamping jaw with the fixed mode of bearing and plunger, uses elastic element to provide the tight power that expands, guarantees that the bearing can not drop before the pressure equipment, and the clamping jaw can break away from the bearing after the pressure equipment.

Description

Novel bearing press-fitting expansion mechanism

Technical Field

The utility model belongs to the machining field relates to an anchor clamps frock, especially relates to a novel bearing pressure equipment tight mechanism that expands.

Background

In the automotive industry, the bearing is a common product, the inner ring and the outer ring of the bearing are smooth and are not easy to place during installation, and the plunger is needed to be used when the original bearing is installed and placed, but is easy to damage and needs to be replaced frequently. And after the plunger piston is damaged, because bearing self weight is great, lead to the bearing to drop to gouge easily, can't use.

For example, chinese patent application publication No. CN104400398A discloses a pressure bearing device, which includes a rear fixing seat, a supporting seat, a sliding pressure block seat, and a front fixing seat, which are sequentially disposed, wherein the components are connected together by a first guide column, and the supporting seat and the sliding pressure block seat can slide along the axial direction of the first guide column; the rear fixed seat is provided with a first pressure bearing device, the supporting seat is provided with a supporting frame for supporting and positioning a motor rotor workpiece, and the sliding pressure block seat is provided with a second pressure bearing device; the first pressure bearing device comprises a rear bearing tail top and a rear bearing thimble arranged at the axis of the rear bearing tail top and connected with the rear bearing tail top in a sliding mode, the rear bearing thimble can extend out of and retract into the rear bearing tail top, the rear bearing thimble is used for hanging a bearing and a magnetic ring, and the second pressure bearing device comprises a bearing pressure head.

Above-mentioned technical scheme adopts horizontal structure, and in the pressure equipment in-process, magnetic ring and bearing atress are even, stable, have reduced the defective rate that the bearing damaged, have reduced operator's intensity of labour, nevertheless can't solve the problem that the bearing was installed and is placed under vertical state.

Disclosure of Invention

The application aims to solve the problems and provide a novel bearing press-fitting expansion mechanism;

in order to achieve the above purpose, the utility model adopts the following technical proposal:

the application creatively provides a novel tight mechanism of bearing pressure equipment expanding, including the pressure head of locating plunger one end, a plurality of grooves of having arranged along circumference in the outside of this pressure head, the one end in this bar groove extends to the one end that the pressure head deviates from the plunger, is equipped with a clamping jaw in every bar groove, and the one end that this clamping jaw deviates from the plunger has the clamping jaw head, be connected with elastic element between the inboard of pressure head and the bar groove, the outside of clamping jaw head is the protruding bar groove outside of lower arch in elastic element lax state, and the outside of clamping jaw head flushes or caves in the bar groove with the bar groove outside under elastic element compresses tightly the state.

In the above-mentioned novel bearing press-fitting expansion mechanism, the pressure head has a tapered portion, and the diameter of the outer circumference of the tapered portion is gradually reduced from the end close to the plunger to the end away from the plunger.

In the novel bearing press-fitting expansion mechanism, the pressure head is further provided with a connecting sheet, and the connecting sheet is arranged at one end of the conical part close to the plunger.

In the novel bearing press-fitting expansion mechanism, the clamping jaw is rotatably connected with the pressure head.

In foretell a novel bearing pressure equipment tight mechanism that expands, the relative both sides face in bar groove is equipped with a fixed orifices respectively, be equipped with the first through-hole of axis and fixed orifices axis coincidence in the clamping jaw, be connected through the pivot in two fixed orificess and the first through-hole in every bar groove.

In the novel bearing press-fitting expansion mechanism, the inner side of the strip-shaped groove is provided with a first groove, the inner side of the clamping jaw is provided with a second groove corresponding to the first groove, and two ends of the elastic element are respectively arranged in the first groove and the second groove.

In the novel bearing press-fitting expansion mechanism, the connecting sheet is arranged at the periphery of the pressure head along the circumferential direction, and a plurality of mounting holes are arranged on the connecting sheet along the circumferential direction.

In the novel bearing press-fitting expansion mechanism, the clamping jaw head is provided with a wedge-shaped part, and the wedge-shaped part is composed of a pressing inclined surface facing away from one end of the plunger and a jacking inclined surface facing towards one end close to the plunger.

In the above-mentioned novel bearing press-fitting expansion mechanism, the elastic element is a spring or a leaf spring.

In the novel bearing press-fitting expansion mechanism, one end of the clamping jaw, which is close to the plunger, is provided with a second through hole, and the axis direction of the second through hole is perpendicular to the axis of the first through hole.

Compared with the prior art, the utility model has the advantages of:

this application can become the fixed mode of clamping jaw with the fixed mode of bearing and plunger, uses elastic element to provide the tight power that expands, guarantees that the bearing can not drop before the pressure equipment, and the clamping jaw can break away from the bearing after the pressure equipment.

Adopt the major structure of toper portion as the pressure head in this application, can cooperate with the bearing cylinder body better to make the clamping jaw get into the tight bearing of clamp in the bearing cylinder body smoothly.

The clamping jaw is rotatably connected in the strip-shaped groove, so that the clamping jaw can be conveniently matched with the elastic element to act, and the clamping jaw has longer service life.

The clamping jaw head is a wedge-shaped part, is convenient to press and tightly push, has good adaptability and stable mechanical stability, and further prevents the bearing from falling off.

Drawings

Fig. 1 is a block diagram provided in the present application.

Fig. 2 is a block diagram of the plunger and ram combination provided herein.

Fig. 3 is a bottom view of the indenter according to the present invention.

Fig. 4 is a cross-sectional structural view of the indenter provided in the present application.

Fig. 5 is a side view of the indenter provided in the present application.

Fig. 6 is another cross-sectional structural view of the indenter provided in the present application.

Figure 7 is a view of the jaw configuration provided herein.

In the figure, a plunger 1, a pressure head 2, a strip-shaped groove 20, a conical part 21, a connecting piece 22, a mounting hole 220, a fixing hole 23, a first groove 24, a clamping jaw 3, a clamping jaw head 30, a pressing inclined plane 300, a jacking inclined plane 301, a first through hole 31, a second groove 32, a second through hole 33, an elastic element 4 and a cylinder 5.

Detailed Description

Further illustrated by the following specific examples;

fig. 1-7 show a novel bearing press-fitting expansion mechanism. Fig. 1 is a structural diagram of a bearing press-fitting expansion mechanism in a use state. The plunger 1 is arranged in a cylinder body 5 of the bearing through a bearing press-fitting expansion mechanism. Bearing pressure equipment tight mechanism that expands includes plunger 1 and clamping jaw 3, the one end at plunger 1 is installed to pressure head 2, a plurality of bar grooves 20 of having arranged along circumference in the outside of this pressure head 2, the one end in this bar groove 20 extends to the one end that pressure head 2 deviates from plunger 1, be equipped with a clamping jaw 3 in every bar groove 20, the one end that this clamping jaw 3 deviates from plunger 1 has clamping jaw head 30, be connected with elastic element 4 between the inboard of pressure head 2 and the bar groove 20, the outside of clamping jaw head 30 is the lower protruding bar groove 20 outside of elastic element 4 lax state, and the outside of clamping jaw head 30 flushes or caves in the bar groove 20 with the bar groove 20 outside under elastic element 4 compressed tightly the state. The bearing press-fitting expansion mechanism can change the fixing mode of the cylinder body 5 of the bearing and the plunger 1 into the fixing mode of the clamping jaw 3, the elastic element 4 is used for providing expansion force, the bearing cannot drop before press-fitting, and the clamping jaw 3 can be separated from the bearing after press-fitting.

Specifically, the ram 2 has a tapered portion 21 and a connecting piece 22, and the outer circumferential diameter of the tapered portion 21 is gradually reduced from an end close to the plunger 1 to an end away from the plunger 1. The connecting piece 22 is arranged at one end of the conical part 21 close to the plunger 1 and is arranged on the periphery of the pressure head 2 along the circumferential direction, and a plurality of mounting holes 220 are arranged on the connecting piece 22 along the circumferential direction. Fasteners such as bolts may be used to secure the ram to the plunger 1 through the mounting holes 220. Adopt toper portion 21 as the major structure of pressure head 2 in this application, can cooperate with bearing cylinder 5 better to make clamping jaw 3 get into smoothly and press from both sides tight bearing in the bearing cylinder 5.

Specifically, the pressure head 2 has a through hole in the middle thereof coaxial with the plunger 1 for fitting other parts.

In this embodiment, three clamping jaws 3 are provided, and the clamping jaws 3 are rotatably connected with the pressure head 2. Specifically, two opposite side surfaces of each strip-shaped groove 20 are respectively provided with one fixing hole 23, the clamping jaw 3 is provided with a first through hole 31, the axis of the first through hole coincides with the axis of the fixing hole 23, and the two fixing holes 23 of each strip-shaped groove 20 are connected with the first through hole 31 through a rotating shaft 5. Preferably, the elastic element 4 is a spring or a leaf spring. The clamping jaw 3 is rotatably connected in the strip-shaped groove, so that the clamping jaw 3 can be conveniently matched with the elastic element 4 to act, and the service life of the clamping jaw 3 is longer.

Preferably, the inside of the strip 20 has a first groove 24, the inside of the jaw 3 is provided with a second groove 32 corresponding to the first groove 24, and the two ends of the elastic element 4 are respectively arranged in the first groove 24 and the second groove 32.

The connecting piece 22 jaw head 30 has a wedge portion formed by a pressing slope 300 facing away from one end of the plunger 1 and a tightening slope 301 facing toward one end close to the plunger 1, and the connecting ends of the pressing slope 300 and the tightening slope 301 of the wedge portion face outward. The clamping jaw head 30 is a wedge-shaped part, is convenient to press and jack up, has good adaptability and stable mechanical stability, and further prevents the bearing from falling off.

In one embodiment, the clamping jaw 3 is provided with a second through hole 33 at an end close to the plunger 1, and the axial direction of the second through hole 33 is perpendicular to the axial direction of the first through hole 31. This second through-hole 33 can regard as spacing hole, uses with the spacing post (not shown in the figure) clearance fit of installing in

bar groove

20, and 3 rotation in-process bar grooves 20 spacing post activities relatively of clamping jaw, and the tip of spacing post is equipped with the stopper that is greater than spacing hole, and clamping jaw head 30 receives the restriction that receives the stopper after pressing down rather than the corresponding one end rotation one section distance of one end.

The working principle of the utility model is as follows:

when the cylinder body 5 is mounted, the end part of the clamping jaw 3 is tightly pressed against the inner side wall of the cylinder body 5 outwards under the expansion force of the elastic element 4, and the clamping jaw head 30 forms a protruding part for preventing the cylinder body 5 from falling off at the bottom end of the cylinder body 5. Pressing the pressing slopes 300 of the jaw heads 30 causes the jaw heads 30 to contract inwardly and the elastic member 4 to compress, thereby disengaging the jaws 3 from the plunger 1 from the cylinder 5.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms plunger 1, ram 2, strip groove 20, taper 21, connecting piece 22, mounting hole 220, fixing hole 23, first recess 24, jaw 3, jaw head 30, pressing slope 300, abutting slope 301, first through hole 31, second recess 32, second through hole 33, elastic element 4, cylinder 5, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a novel bearing pressure equipment tight mechanism that expands which characterized in that: including pressure head (2) of locating plunger (1) one end, a plurality of bar grooves (20) have been arranged along circumference in the outside of this pressure head (2), and the one end of this bar groove (20) extends to pressure head (2) and deviates from the one end of plunger (1), is equipped with one clamping jaw (3) in every bar groove (20), and this clamping jaw (3) one end that deviates from plunger (1) has jaw head (30), be connected with elastic element (4) between the inboard of pressure head (2) and bar groove (20), the outside of jaw head (30) is in elastic element (4) lax state lower protruding bar groove (20) outside, and the outside of jaw head (30) flushes or caves in bar groove (20) with bar groove (20) outside under elastic element (4) pressure tightly the state.

2. A novel bearing press-fitting expansion mechanism as claimed in claim 1, wherein: the pressure head (2) is provided with a conical part (21), and the diameter of the outer circumference of the conical part (21) is gradually reduced from one end close to the plunger (1) to one end far away from the plunger (1).

3. A novel bearing press-fitting expansion mechanism as claimed in claim 2, wherein: the pressure head (2) is also provided with a connecting piece (22), and the connecting piece (22) is arranged at one end of the conical part (21) close to the plunger (1).

4. A novel bearing press-fitting expansion mechanism as claimed in claim 1, wherein: the clamping jaw (3) is rotatably connected with the pressure head (2).

5. The novel bearing press-fitting expansion mechanism as claimed in claim 4, wherein: two opposite side surfaces of the strip-shaped groove (20) are respectively provided with a fixing hole (23), a first through hole (31) with the axis coincident with the axis of the fixing hole (23) is formed in the clamping jaw (3), and the two fixing holes (23) of each strip-shaped groove (20) are connected with the first through hole (31) through a rotating shaft (5).

6. A novel bearing press-fitting expansion mechanism as claimed in claim 1, wherein: the inside in bar groove (20) has first recess (24), the inboard of clamping jaw (3) is provided with second recess (32) corresponding to first recess (24), the both ends of elastic element (4) are located respectively in first recess (24) and second recess (32).

7. A novel bearing press-fitting expansion mechanism as claimed in claim 3, wherein: the connecting piece (22) is arranged on the periphery of the pressure head (2) along the circumferential direction, and a plurality of mounting holes (220) are arranged on the connecting piece (22) along the circumferential direction.

8. A novel bearing press-fitting expansion mechanism as claimed in claim 1, wherein: the gripper head (30) has a wedge-shaped portion which is formed by a pressing slope (300) facing away from the plunger (1) and a tightening slope (301) facing toward the end close to the plunger (1).

9. A novel bearing press-fitting expansion mechanism as claimed in claim 1, wherein: the elastic element (4) is a spring or a shrapnel.

10. The novel bearing press-fitting expansion mechanism as claimed in claim 5, wherein: one end of the clamping jaw (3) close to the plunger (1) is provided with a second through hole (33), and the axial direction of the second through hole (33) is vertical to the axial direction of the first through hole (31).