CN216179806U

CN216179806U - Positioning mechanism for automobile differential case

Info

Publication number: CN216179806U
Application number: CN202122288893.2U
Authority: CN
Inventors: 李新潮; 董文鹏; 周颖梅
Original assignee: Jinan Qiaobo Auto Parts Co ltd
Current assignee: Jinan Qiaobo Auto Parts Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-04-05
Anticipated expiration: 2031-09-22

Abstract

The utility model provides a positioning mechanism of an automobile differential case, which comprises a bracket, wherein the upper surface of a horizontal part of the bracket is provided with a threaded hole which is vertically arranged, a screw rod is connected with the thread hole in an internal thread manner, the lower end of the screw rod extends into the cylinder and is connected with a first piston, the first piston is arranged in a cylinder in a sliding way, the bottom of the cylinder is fixedly connected with a hollow positioning head which is used for being inserted into a flange hole on a differential shell, the inner surface of the positioning head is uniformly provided with three transversely arranged straight cylinders in an annular equidistance, the straight cylinders are internally provided with second pistons in a sliding way, the middle part of one side of the second piston, which is far away from the open end of the straight cylinder, is fixedly connected with a connecting rod, one end of the connecting rod, which is far away from the second piston, extends to the outer side of the positioning head and is fixedly connected with an arc supporting plate which is attached to the inner wall of the flange hole, and compared with the prior art, the utility model has the following beneficial effects: the positioning head is attached to the inner wall of the flange hole with different apertures, and the application range is expanded.

Description

Positioning mechanism for automobile differential case

Technical Field

The utility model discloses a positioning mechanism for an automobile differential case, and belongs to the technical field of differential case processing.

Background

Differentials are essential parts of automobiles. Be equipped with the flange hole of being connected with the basin gear on the differential mechanism casing, when processing differential mechanism casing, often utilize screw rod drive location head, make the location head assign in the flange hole on the differential mechanism casing to restrict the position of differential mechanism casing, nevertheless the size of location head is fixed, and to the flange hole in great aperture, after the location head assigns and finishes, because of there being the clearance between location head and the flange hole, poor to the location effect of differential mechanism casing, only be applicable to the flange hole in single aperture.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a positioning mechanism of an automobile differential case, which aims to solve the problems that the size of a positioning head which is inserted into a flange hole and used for limiting the position of the differential case is fixed, and for the flange hole with larger aperture, after the positioning head is inserted, the positioning effect on the differential case is poor due to the gap between the positioning head and the flange hole, and the positioning head is only suitable for the flange hole with single aperture.

In order to achieve the purpose, the utility model is realized by the following technical scheme: a positioning mechanism for the shell of differential speed mechanism of car is composed of a supporting frame with L-shaped structure, a vertical screw hole on the upper surface of horizontal part of said supporting frame, a screw rod is connected with the thread hole in an internal thread manner, the lower end of the screw rod extends into the cylinder and is connected with a first piston, the first piston is arranged in a cylinder in a sliding way, the bottom of the cylinder is fixedly connected with a hollow positioning head which is used for being inserted into a flange hole on a differential shell, the upper end of the positioning head is open and communicated with the cylinder, the inner surface of the positioning head is uniformly provided with three transversely arranged straight cylinders in an annular equidistance, one end of the straight cylinder in the positioning head is open, a second piston is arranged in the straight cylinder in a sliding way, the second piston deviates from the one side middle part fixedly connected with connecting rod of straight section of thick bamboo open end, the one end that the second piston was kept away from to the connecting rod extends to the first outside of location and fixedly connected with is used for laminating the arc fagging on the flange hole inner wall.

Furthermore, the outer surface of the positioning head is in the shape of a ring and is provided with three arc-shaped grooves at equal intervals, and the arc-shaped supporting plates are arranged in the arc-shaped grooves.

Furthermore, three fixing holes are formed in the inner surface of the positioning head in an annular and equidistant mode, insertion holes are formed between the fixing holes and the arc-shaped groove, one end of the straight cylinder is fixed in the fixing holes, and the connecting rod penetrates through the insertion holes.

Further, threaded connection has the nut on the screw rod, the nut sets up at the support upside, the nut upside is equipped with the handle, handle one end and screw rod fixed connection.

Further, the lower end of the vertical portion of the support is fixedly connected with a connecting plate, and two mounting holes for inserting bolts are symmetrically formed in the upper surface of the connecting plate.

Further, a through hole is formed between the two mounting holes, a limiting sleeve is mounted in the through hole, the upper end of the limiting sleeve is closed, a vertically arranged spring is arranged in the limiting sleeve, and the lower end of the spring extends to the lower side of the through hole.

Furthermore, the inner surface of the through hole is provided with an internal thread, and the outer surface of the lower end of the limit sleeve is provided with an external thread matched with the internal thread.

Furthermore, the middle position of the upper surface of the limit sleeve is fixedly connected with a raised head, and two clamping ports for clamping a wrench are symmetrically formed in the outer surface of the raised head.

Furthermore, a groove is formed in the middle of the upper surface of the first piston, a supporting plate is fixed in the groove, and the lower end of the screw is fixedly connected with the supporting plate.

The utility model has the beneficial effects that:

1. rotate the screw rod and make the screw rod drive the locating head downstream, after locating head assigns in the flange hole, the drum is blocked and is no longer downstream, continue to rotate the screw rod, the screw rod drives first piston and slides down in the drum, thereby air in the drum is extruded to locating head in, promote the second piston and slide in straight section of thick bamboo in the air admission straight section of thick bamboo in the locating head, thereby the second piston passes through the connecting rod and drives the arc fagging and remove to the direction of keeping away from the locating head, until arc fagging and flange hole inner wall laminating, realize satisfying the needs in large aperture flange hole, enlarge application scope.

2. When utilizing the position of bolt fastening even board, in arranging spring one end in the stop collar, even board installation back that finishes, the spring is compressed in to the stop collar, and then under the effect of spring-back force, reduces the bolt of fixed even board and takes place not hard up probability.

3. The stop collar is rotated, and then the position of the stop collar in the through hole with the internal thread is processed changes, namely the distance between the top of the stop collar and the bottom of the connecting plate is increased or decreased, and springs with different lengths can be conveniently installed in the stop collar.

Drawings

Other features, objects and advantages of the utility model will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of a differential carrier housing positioning mechanism for an automobile according to the present invention;

FIG. 2 is a perspective view of a bracket in the positioning mechanism of the differential case of the vehicle of the present invention;

FIG. 3 is a schematic view of the assembly of the first piston, the positioning head and the cylinder in the positioning mechanism of the differential case of the vehicle according to the present invention;

FIG. 4 is a schematic view of the assembly of the arc-shaped supporting plate, the second piston, the straight cylinder and the positioning head in the positioning mechanism of the differential case of the vehicle according to the present invention;

FIG. 5 is a cross-sectional view of a positioning head of a differential carrier positioning mechanism of an automobile according to the present invention;

in the figure: 1-support, 2-screw, 3-nut, 4-handle, 5-cylinder, 6-positioning head, 7-arc supporting plate, 8-connecting plate, 9-mounting hole, 10-spring, 11-limiting sleeve, 12-raised head, 13-threaded hole, 14-through hole, 15-first piston, 16-supporting disk, 17-straight cylinder, 18-second piston, 19-connecting rod, 20-arc groove, 21-through hole and 22-fixing hole.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

Referring to fig. 1-5, the present invention provides a technical solution: a positioning mechanism for an automobile differential case comprises a support 1, wherein the support 1 is of an L-shaped structure, a connecting plate 8 is fixedly connected to the lower end of the vertical part of the support 1, two mounting holes 9 for inserting bolts are symmetrically formed in the upper surface of the connecting plate 8, the bolts for fixing the connecting plate 8 penetrate through the mounting holes 9 to be mounted at required positions to fix the position of the support 1, a through hole 14 is formed between the two mounting holes 9, a limiting sleeve 11 is mounted in the through hole 14, the upper end of the limiting sleeve 11 is closed, a spring 10 which is vertically arranged is arranged in the limiting sleeve 11, the lower end of the spring 10 extends to the lower side of the through hole 14, an internal thread is machined on the inner surface of the through hole 14, an external thread matched with the internal thread is machined on the outer surface of the lower end of the limiting sleeve 11, when the connecting plate 8 is fixed by the bolts, one end of the spring 10 is arranged in the limiting sleeve 11, after the connecting plate 8 is mounted, the spring 10 is compressed into the limiting sleeve 11, and then under the effect of spring 10 resilience force, reduce the bolt of fixed even board 8 and take place not hard up probability, rotate stop collar 11, and then stop collar 11 is processed the position change in having the internal screw thread through-

hole

14, 11 tops of stop collar and even interval grow or diminish of board 8 bottom promptly, be convenient for install the spring 10 of different length in

stop collar

11, 11 upper surface middle part fixedly connected with plush copper 12 of stop collar, two joint mouths that are used for the joint spanner are seted up to plush copper 12 surface symmetry, install the plush copper 12 of taking the joint mouth on stop collar 11, be convenient for utilize the spanner to twist stop collar 11.

The upper surface of the horizontal part of the bracket 1 is provided with a vertically arranged threaded hole 13, the threaded hole 13 is internally threaded with a screw 2, the screw 2 is threaded with a nut 3, the nut 3 is arranged on the upper side of the bracket 1, the upper side of the nut 3 is provided with a handle 4, one end of the handle 4 is fixedly connected with the screw 2, the screw 2 is screwed by the handle 4, and the screw rod 2 moves upwards or downwards along the threaded hole 13, and after the position adjustment of the screw rod 2 is finished, screwing the nut 3 to ensure that the nut 3 is attached to the bracket 1, preventing the screw rod 2 from rotating randomly, extending the lower end of the screw rod 2 into the cylinder 5 and connecting with a first piston 15, the first piston 15 is slidably arranged in the cylinder 5, a groove is arranged in the middle of the upper surface of the first piston 15, a supporting plate 16 is fixed in the groove, the lower end of the screw rod 2 is fixedly connected with the supporting plate 16, a support plate 16 is additionally arranged between the screw rod 2 and the first piston 15, so that the connection reliability of the screw rod 2 and the first piston 15 is improved.

The bottom of the cylinder 5 is fixedly connected with a hollow positioning head 6 which is used for being inserted in a flange hole on a differential case, the upper end of the positioning head 6 is open and communicated with the cylinder 5, the inner surface of the positioning head 6 is uniformly provided with three straight cylinders 17 which are transversely arranged at equal intervals in an annular shape, the inner surface of the positioning head 6 is provided with three fixing holes 22 at equal intervals in an annular shape, a through hole 21 is arranged between each fixing hole 22 and each arc-shaped groove 20, one end of each straight cylinder 17 is fixed in each fixing hole 22, a connecting rod 19 penetrates through each through hole 21, one end of each straight cylinder 17, which is positioned in the positioning head 6, is open, a second piston 18 is slidably arranged in each straight cylinder 17, the middle part of one surface of each second piston 18, which is deviated from the open end of each straight cylinder 17, is fixedly connected with the connecting rod 19, one end of each connecting rod 19, which is far away from the second piston 18, extends to the outer side of the positioning head 6 and is fixedly connected with an arc-shaped supporting plate 7 which is attached to the inner wall of the flange hole, the outer surface of the positioning head 6 is provided with three arc-shaped grooves 20 at equal intervals in an annular shape, arc fagging 7 sets up in arc wall 20, it makes screw rod 2 drive location head 6 downstream to rotate screw rod 2, after location head 6 assigns in the flange hole, drum 5 is blocked no longer downstream, continue to rotate screw rod 2, screw rod 2 drives first piston 15 and slides downwards in drum 5, thereby air in drum 5 is extruded to location head 6 in, air entering straight section of thick bamboo 17 in the location head 6 promotes second piston 18 and slides in straight section of thick bamboo 17, thereby second piston 18 drives arc fagging 7 through connecting rod 19 and removes to the direction of keeping away from location head 6, until arc fagging 7 and flange hole inner wall laminate mutually, realize satisfying the needs in large aperture flange hole, enlarge application scope.

Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.

Claims

1. The utility model provides an automobile differential case positioning mechanism, includes support (1), its characterized in that: support (1) is L type structure, vertically arranged's screw hole (13) is seted up to the horizontal part upper surface of support (1), screw hole (13) internal thread is connected with screw rod (2), screw rod (2) lower extreme extends to in drum (5) and is connected with first piston (15), first piston (15) slidable mounting is in drum (5), drum (5) bottom fixedly connected with is used for placeeing hollow form locating head (6) in the flange hole on the differential mechanism shell, locating head (6) upper end is the opening form and communicates with each other with drum (5), evenly be annular equidistance in locating head (6) internal surface and install three straight section of thick bamboo (17) of transversely arranging, the one end that straight section of thick bamboo (17) is in locating head (6) is the opening form, slidable mounting has second piston (18) in straight section of thick bamboo (17), second piston (18) deviate from one side middle part position fixedly connected with connecting rod (17) open end (17) (connecting rod (17) 19) And one end of the connecting rod (19) far away from the second piston (18) extends to the outer side of the positioning head (6) and is fixedly connected with an arc-shaped supporting plate (7) which is attached to the inner wall of the flange hole.

2. The differential case positioning mechanism for an automobile according to claim 1, wherein: the outer surface of the positioning head (6) is in a ring shape and is equidistantly provided with three arc-shaped grooves (20), and the arc-shaped supporting plates (7) are arranged in the arc-shaped grooves (20).

3. The differential case positioning mechanism for the automobile according to claim 2, wherein: the inner surface of the positioning head (6) is provided with three fixing holes (22) in an annular and equidistant manner, a through hole (21) is formed between each fixing hole (22) and each arc-shaped groove (20), one end of each straight cylinder (17) is fixed in each fixing hole (22), and each connecting rod (19) penetrates through each through hole (21).

4. The differential case positioning mechanism for an automobile according to claim 1, wherein: threaded connection has nut (3) on screw rod (2), nut (3) set up in support (1) upside, nut (3) upside is equipped with handle (4), handle (4) one end and screw rod (2) fixed connection.

5. The differential case positioning mechanism for an automobile according to claim 1, wherein: the lower end of the vertical part of the support (1) is fixedly connected with a connecting plate (8), and two mounting holes (9) for inserting bolts are symmetrically formed in the upper surface of the connecting plate (8).

6. The differential case positioning mechanism for the automobile according to claim 5, wherein: two be equipped with through-hole (14) between mounting hole (9), install stop collar (11) in through-hole (14), stop collar (11) upper end is for sealing the form, be equipped with vertical arrangement's spring (10) in stop collar (11), spring (10) lower extreme extends to through-hole (14) downside.

7. The differential case positioning mechanism for the automobile according to claim 6, wherein: the inner surface of the through hole (14) is processed with an internal thread, and the outer surface of the lower end of the limiting sleeve (11) is processed with an external thread matched with the internal thread.

8. The differential case positioning mechanism for the automobile according to claim 7, wherein: the middle position of the upper surface of the limiting sleeve (11) is fixedly connected with a raised head (12), and two clamping ports for clamping a wrench are symmetrically formed in the outer surface of the raised head (12).

9. The differential case positioning mechanism for an automobile according to claim 1, wherein: the middle position of the upper surface of the first piston (15) is provided with a groove, a supporting plate (16) is fixed in the groove, and the lower end of the screw rod (2) is fixedly connected with the supporting plate (16).