Axle housing oil seal press fitting device

Abstract

The utility model provides an axle housing oil seal press-fitting device, and relates to the field of axle housing oil seal assembly, and adopts the technical scheme that the axle housing oil seal press-fitting device comprises a connecting assembly, the connecting assembly is used for being connected with a hub of an axle housing, the connecting assembly comprises a connecting seat, the lower part of the connecting seat is connected with an adjusting seat, and the adjusting seat can move up and down; a press-fitting assembly is connected to the lower portion of the adjusting base and comprises a press-fitting head capable of moving in the axial direction. The press-fitting device can adjust press-fitting according to the size change of the axle housing, and is wide in application range.

Description

TECHNICAL FIELD

[0001] The utility model relates to axle housing oil seal assembly field especially relates to a axle housing oil seal press fitting device. BACKGROUND

[0002] When assembling the oil seal in the axle housing, the artificial beating assembly mode is used, the artificial beating assembly is that the oil seal is sleeved on the oil seal beating assembly tool, the oil seal is assembled to the specified position through the beating mode of the hammer, the installation speed and the pressure maintaining time in the assembly process cannot be guaranteed, and the online production of large batches is not suitable.

[0003] In the prior art, the Chinese utility model patent with the authorization announcement number CN202428166U discloses a hanging type press fitting mechanism of oil seal in axle housing, including hydraulic cylinder, clamp body, axle housing positioning sleeve, positioning sleeve mounting seat, oil seal compression column, when using, the lifting ring is hung on the truss beside the production line through the balancer, the oil seal is fixed on the oil seal pressing head, the axle housing positioning sleeve is positioned at the step of the axle housing through artificial positioning, one positioning is completed, the axle housing positioning sleeve is positioned on the axle housing, the switch of the switch box is pressed, the hydraulic station gives oil to the hydraulic cylinder, the hydraulic cylinder drives the clamp body, makes the oil seal press fitting mechanism tightly hold the axle housing, simultaneously makes the axle housing positioning sleeve tightly position on the axle housing through the compression spring, completes the second fine positioning, the hydraulic station continues to give oil to the hydraulic cylinder, the hydraulic cylinder drives the oil seal compression column and press fits the oil seal to the specified position of the axle housing, and the press fitting of the oil seal is completed, the technical scheme greatly improves the assembly efficiency.

[0004] With the change of the axle type, the size of the axle housing and the bushing changes, when the above technical scheme is used, when the size of the axle housing becomes larger, the bushing mounting hole axis moves downward, the height of the oil seal pressing head cannot be adjusted, the oil seal pressing head axis cannot be guaranteed to be in the same horizontal position with the bushing mounting hole axis, assembly cannot be completed, it can be seen that the above technical scheme can only be applied to the axle housing of one size. UTILITY MODEL CONTENTS

[0005] In order to solve the technical problem that the axle housing oil seal press fitting equipment in the above prior art cannot be applied to the assembly of axle housings of multiple sizes, the utility model provides an axle housing oil seal press fitting device, which can be adjusted according to the change of the size of the axle housing and has wide application range.

[0006] The utility model discloses a technical scheme that is adopted to solve the above technical problem is: an axle housing oil seal press fitting device, including connecting assembly, the connecting assembly includes connecting seat, the connecting seat can be detachably connected with axle housing hub, the lower part of connecting seat is connected with adjusting seat, the adjusting seat can move up and down, the lower part of adjusting seat is connected with press fitting assembly, and the press fitting assembly includes the press fitting head that can move axially.

[0007] The utility model discloses a position of adjusting seat is set to adjustable, can adjust the adjusting seat position up and down after the size of axle housing changes, and further change the position of pressure -assembling component, and the position of bushing mounting hole is adapted, and the use is flexible, and the application range is wide.

[0008] Further, the connecting seat comprises an adjusting end, the adjusting end is vertically arranged, the adjusting end is vertically provided with a straight slot hole, a plurality of adjusting holes are arranged on the adjusting seat in the vertical direction, a locking bolt is arranged in one of the adjusting holes, and the distance between any two adjusting holes is determined by the difference between the hub diameters of the two axle housings of the corresponding type.

[0009] The utility model discloses a plurality of height adjusting holes can be directly corresponding with the axle housing of the corresponding type through the setting, and the adjustment accuracy is guaranteed.

[0010] Further, the pressure -assembling component comprises a mounting bracket and a cylinder, the cylinder is horizontally arranged in the mounting bracket and the piston rod thereof is connected with the pressure -assembling head, the mounting bracket is connected with the adjusting seat through the vertical setting pivot, and the mounting bracket can rotate along the circumference of the pivot relative to the adjusting seat.

[0011] The utility model discloses a pivot and mounting bracket realize the rotary connection of cylinder and adjusting seat, make the device have the effect of automatic adjustment pressure -assembling angle, can compensate the manufacturing and installation error of the device and axle housing, avoid the damage caused by the hard collision of bushing and axle housing, guarantee smooth pressure -assembling.

[0012] Further, the two ends of the pivot are connected with the adjusting seat and the mounting bracket through bearings.

[0013] The utility model discloses two bearings make the pivot more flexible.

[0014] Further, the connecting seat further comprises a connecting end, the connecting end is horizontally arranged, the connecting end is provided with a limiting hook, the limiting hook is a U-shaped structure with an opening downward, the limiting hook comprises a connecting arm and a locking arm, the connecting arm is hinged with the connecting end, the connecting arm is horizontally provided with a limiting bolt, the limiting bolt can abut against the hub end face, and the locking arm can abut against the other hub end face.

[0015] The utility model discloses a limiting hook only needs to rotate the limiting bolt to realize dismounting, guarantees the quick dismounting of the device and hub.

[0016] Further, the adjusting end is a door-shaped structure, two straight slot holes are symmetrically arranged on the adjusting end, two positioning cylinder groups are symmetrically arranged on the connecting end, the symmetric planes of the two straight slot holes and the two positioning cylinder groups are coplanar and are the central planes of the pressing head, the positioning cylinder group comprises a plurality of parallel positioning cylinders, and two positioning cylinders in the two positioning cylinder groups which are symmetric about the symmetric plane can be sleeved on two adjacent hub bolts at the top.

[0017] The two positioning cylinder groups which are symmetric about the symmetric plane can be sleeved on two adjacent hub bolts at the top.

[0018] Further, the pressing head is connected with the piston rod of the air cylinder through a torsion spring.

[0019] The torsion spring can compensate for the manufacturing and installation errors of the device and the axle housing, avoid damage caused by hard collision between the bushing and the axle housing, and further ensure smooth installation.

[0020] Further, the pressing head is connected with the piston rod of the air cylinder through a torsion spring.

[0021] The mounting seat can be disassembled and assembled with pressing heads of different sizes, and is adapted to bushings with different inner diameters.

[0022] Further, the pressing head comprises a mounting portion and a guide portion, the mounting portion is a cylindrical structure, and the guide portion is a circular truncated cone structure.

[0023] Further, the connecting end is provided with an ear.

[0024] The device is installed in the form of hoisting, is convenient to cooperate with the production line of the axle housing, and does not need to transfer the axle housing.

[0025] From the above technical solutions, the utility model has the following advantages:

[0026] The utility model provides a kind of axle housing oil seal press fitting device, by the position of adjusting seat is set to adjustable, can be adjusted adjusting seat position after axle housing size changes, and further change the position of press fitting component, with bushing mounting hole position is adapted, flexible, wide application range;By setting multiple height adjusting hole can be directly corresponding with corresponding model axle housing, ensure adjustment accuracy;By rotating shaft and mounting bracket realize the rotary connection of cylinder and adjusting seat, so that the device has the effect of automatically adjusting press fitting angle, can compensate the manufacturing and installation error of the device and axle housing, avoid bushing and axle housing hard impact damage, ensure smooth press fitting;By setting two bearings make rotating shaft rotate more flexible;By setting limit hook only needs to rotate limit bolt to realize disassembly, ensure the quick disassembly of the device and hub;By symmetrically setting two positioning cylinder groups can ensure that different size axle housing is installed after this tool, avoid press fitting head axis left and right deviation bushing mounting hole axis, further ensure smooth installation;By setting torsion spring can compensate the manufacturing and installation error of the device and axle housing, avoid bushing and axle housing hard impact damage, further ensure smooth installation;By setting lifting lug realize the device is installed in the form of hoisting, facilitate with the production line of axle housing cooperation, without transfer axle housing. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawing needed to be used in the description, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, without creative labor, according to these drawings, other drawings can also be obtained.

[0028] Figure 1 For the structure of the specific embodiment of the utility model Figure 1 .

[0029] Figure 2 For the structure of the specific embodiment of the utility model Figure 2 .

[0030] Figure 3 For the structure of adjusting seat in the specific embodiment of the utility model.

[0031] Figure 4 For the structure of mounting bracket in the specific embodiment of the utility model.

[0032] Figure 5 For the structure of connecting seat in the specific embodiment of the utility model.

[0033] Figure 6 For the structure of limit hook in the specific embodiment of the utility model.

[0034] Figure 7 This is a schematic diagram of the pressing head in a specific embodiment of the present invention.

[0035] Figure 8 This is a usage diagram illustrating a specific embodiment of the present invention.

[0036] In the diagram, 1. Cylinder; 2. Torsion spring; 3. Mounting seat; 4. Limit hook; 401. Connecting arm; 402. Locking arm; 403. Limit bolt; 5. Connecting seat; 501. Connecting end; 502. Lifting lug; 503. Positioning cylinder assembly; 504. Adjusting end; 505. Straight slot hole; 6. Adjusting seat; 601. Adjusting hole; 7. Hub bolt; 8. Axle housing; 9. Mounting bracket; 10. Press head; 1001. Mounting part; 1002. Guide part; 11. Mounting seat; 12. Rotating shaft. Detailed Implementation

[0037] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0038] like Figures 1 to 5 As shown in the figure, this specific embodiment provides an oil seal pressing device for an axle housing 8, including a connecting assembly and a pressing assembly. The connecting assembly includes a connecting seat 5, which can be detachably connected to the hub of the axle housing 8. An adjusting seat 6 is connected to the lower part of the connecting seat 5, and the adjusting seat 6 can move up and down. The pressing assembly is connected to the lower part of the adjusting seat 6. The pressing assembly includes an axially movable pressing head 10. The connecting seat 5 includes an adjusting end 504, which is vertically arranged and has a straight groove hole 505. The adjusting seat has a plurality of adjusting holes 601 arranged along the vertical direction. A locking bolt is provided in one of the adjusting holes 601. The distance between any two adjusting holes 601 is determined by the difference in hub diameter of the two axle housings 8 of the corresponding model.

[0039] This specific embodiment makes the position of the adjusting seat 6 adjustable, so that the position of the adjusting seat 6 can be adjusted up and down after the size of the bridge housing 8 changes, thereby changing the position of the press-fit component and adapting to the position of the bushing mounting hole. It is flexible in use and has a wide range of applications. At the same time, in this specific embodiment, the height position of the adjusting hole 601 is set to match the corresponding model of the bridge housing 8 to ensure the accuracy of the adjustment.

[0040] like Figure 1 , Figure 2 and Figure 4As shown in the specific embodiment, the press-fitting assembly comprises a mounting bracket 9 and a cylinder 1, the mounting bracket 9 is horizontally provided with a mounting hole, the cylinder 1 is horizontally arranged in the mounting bracket 9 and the piston rod thereof is connected with a press-fitting head 10, the mounting bracket 9 is connected with the adjusting seat 6, and the control valve group of the cylinder 1 is arranged on the connecting seat 5; specifically, the mounting bracket 9 is provided with a mounting hole for accommodating the cylinder 1, and the upper portion of the mounting bracket 9 is further provided with a bearing hole.

[0041] As shown in Figure 1 , Figure 2 , Figure 5 and Figure 6 , in order to realize the quick disassembly and assembly of the device and the hub, in the specific embodiment, the connecting seat 5 further comprises a connecting end 501, the connecting end 501 is horizontally arranged, and the connecting end 501 is rotatably provided with a limiting hook 4; specifically, the limiting hook 4 is in a U-shaped structure with an opening downward, the limiting hook 4 comprises a connecting arm 401 and a locking arm 402, the connecting arm 401 is hingedly connected with the connecting end 501 through a hinge seat and a pin shaft, the connecting arm 401 is horizontally provided with a limiting bolt 403, the limiting bolt 403 can abut against one end face of the hub, and the inner side face of the locking arm 402 can abut against the other end face of the hub; in use, the limiting hook 4 is rotated, when the locking arm 402 is rotated to be opposite to the other end face of the hub, the limiting bolt 403 is rotated until it abuts against the hub, thereby realizing the connection of the device and the hub.

[0042] As shown in Figure 3 , Figure 5 and Figure 8 , in order to ensure that the axis of the press-fitting head 10 and the axis of the bushing mounting hole do not exist left and right deviation after replacing different models of the axle housing 8, in the specific embodiment, the adjusting end 504 is in a door-shaped structure, two straight slot holes 505 are symmetrically arranged on the adjusting end 504, correspondingly, the adjusting hole 601 is also provided with two rows, the connecting end 501 is symmetrically provided with two positioning cylinder groups 503, the symmetry planes of the two straight slot holes 505 and the two positioning cylinder groups 503 are coplanar and are central planes of the press-fitting head 10 or the mounting bracket 9, the positioning cylinder group 503 comprises a plurality of parallel arranged positioning cylinders, the two positioning cylinders in the two positioning cylinder groups 503 which are symmetric about the symmetry plane can be sleeved on the two adjacent hub bolts 7 at the top of the hub, and the positioning cylinders are in clearance fit with the hub bolts 7; after being arranged in this way, by sleeving the two positioning cylinder groups 503 on the two hub bolts 7, it can be ensured that the axis of the press-fitting head 10 and the axis of the mounting hole do not exist left and right deviation, and only the height of the press-fitting head 10 needs to be adjusted to adapt to different models of the axle housing 8.

[0043] As shown in Figure 2 and Figure 7As shown, in order to smoothly enter the bush mounting hole, the end of the press fitting head 10 is coaxially provided with the press fitting head 10, the press fitting head 10 comprises a mounting portion 1001 and a guide portion 1002, the mounting portion 1001 is in a cylindrical structure, the guide portion 1002 is in a circular table structure, and the mounting portion 1001 of the press fitting head 10 can be matched with the bush gap; since different models of the axle housing 8 match different inner diameter bushes, different sizes of the press fitting head 10 are required, and in the specific embodiment, the press fitting head 10 is detachably connected with the mounting seat 11, the mounting seat 11 is connected with the piston rod, and specifically, the end face of the press fitting head 10 is provided with a stud, and the mounting seat 11 is provided with a threaded hole, so that the press fitting head 10 can be conveniently disassembled and replaced.

[0044] As shown in Figure 2 Since the axle housing 8 and the tooling both have manufacturing and installation errors, in order to avoid collision between the bush and the axle housing 8 during press fitting, the mounting bracket 9 is connected with the adjusting seat 6 through the vertically arranged rotating shaft 12, the mounting bracket 9 can rotate along the circumference of the rotating shaft 12 relative to the adjusting seat 6, and as preferred, the two ends of the rotating shaft 12 are connected with the adjusting seat 6 and the mounting bracket 9 through bearings, and the bearings adopt ball bearings; as preferred, the mounting seat 11 is connected with the piston rod through the torsion spring 2; after being arranged in this way, during the press fitting process, after the press fitting head 10 is subjected to resistance (non-axial), the press fitting head 10 is swung in the up-down or left-right direction through the action of the rotating shaft 12 and the torsion spring 2, so that hard collision between the bush and the axle housing 8 is avoided, damage is avoided, and smooth press fitting is ensured.

[0045] As shown in Figure 1 and Figure 5 In the specific embodiment, the connecting end 501 is provided with the lifting lug 502, the device is installed in the form of hoisting through the arrangement of the lifting lug 502, the device is convenient to cooperate with the production line of the axle housing 8, and the axle housing 8 does not need to be transferred.

[0046] The working process of the press fitting device is as follows:

[0047] Firstly, the appropriate press head is selected and installed on the press fitting head 10; the corresponding two symmetrical positioning cylinders are sleeved on the top two hub bolts 7, and the limiting hook 4 is locked on the hub; the adjusting hole 601 at the appropriate position is selected according to the model of the axle housing 8 to adjust the height of the adjusting seat 6; the cylinder 1 is controlled to extend, and the press fitting is completed.

[0048] From the above specific embodiment, it can be seen that the utility model has the following beneficial effects:

[0049] 1. By setting the position of the adjusting seat 6 as adjustable, the position of the adjusting seat 6 can be adjusted up and down after the size of the axle housing 8 changes, the position of the press fitting assembly is changed, the position of the press fitting assembly is adapted to the position of the bush mounting hole, the device is flexible to use, and the application range is wide;

[0050] 2. By setting multiple height adjustment holes 601, the adjustment accuracy can be ensured by directly corresponding to the corresponding type of axle housing 8;

[0051] 3. By the rotating shaft 12 and the mounting bracket 9, the rotating connection of the cylinder 1 and the adjusting seat 6 is realized, so that the device has the function of automatically adjusting the pressing angle, the manufacturing and installation errors of the device and the axle housing 8 can be compensated, the damage caused by the hard collision of the bushing and the axle housing 8 is avoided, and the smooth pressing is ensured;

[0052] 4. By setting two bearings, the rotating shaft 12 rotates more flexibly;

[0053] 5. By setting the limiting hook 4, only the limiting bolt needs to be rotated to realize the disassembly, and the quick disassembly of the device and the hub is ensured;

[0054] 6. By symmetrically setting two positioning cylinder groups 503, after the axle housing 8 of different sizes is installed in the tool, the axis of the pressing head 10 is prevented from deviating left and right from the axis of the bushing mounting hole, and the smooth installation is further ensured;

[0055] 7. By setting the torsion spring 2, the manufacturing and installation errors of the device and the axle housing 8 can be compensated, the damage caused by the hard collision of the bushing and the axle housing 8 is avoided, and the smooth installation is further ensured;

[0056] 8. By setting the lifting lug 502, the device is installed in the form of hoisting, which is convenient for cooperation with the production line of the axle housing 8, and the axle housing 8 does not need to be transferred.

[0057] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A housing oil seal press-on device comprising a connecting assembly, characterized in that, The connecting assembly comprises a connecting seat (5) which can be detachably connected with a wheel hub, a regulating seat (6) connected with the lower part of the connecting seat (5) and capable of moving up and down, and a press-fitting assembly connected with the lower part of the regulating seat (6).

2. The bridge oil seal press assembly apparatus of claim 1 wherein, The connecting seat (5) comprises an adjusting end (504) which is vertically arranged and vertically provided with a straight slot hole (505), and the regulating seat (6) is provided with a plurality of adjusting holes (601) in the vertical direction, one of which is provided with a locking bolt, and the distance between any two adjusting holes (601) is determined by the difference in the wheel hub diameter of two axle housings of corresponding models.

3. The bridge oil seal press assembly apparatus of claim 2, wherein, The press-fitting assembly comprises a mounting bracket (9) and a pneumatic cylinder (1), the pneumatic cylinder (1) is horizontally arranged in the mounting bracket (9) and its piston rod is connected with the press-fitting head (10), the mounting bracket (9) is connected with the regulating seat (6) through a vertically arranged rotating shaft (12), and the mounting bracket (9) can rotate along the circumference of the rotating shaft (12) relative to the regulating seat (6).

4. The bridge oil seal press assembly of claim 3 wherein, Both ends of the rotating shaft (12) are connected with the regulating seat (6) and the mounting bracket (9) through bearings.

5. The bridge oil seal press assembly of claim 3 wherein, The connecting seat (5) further comprises a connecting end (501) which is horizontally arranged and provided with a limiting hook (4) in the shape of a U with an opening downward, the limiting hook (4) comprises a connecting arm (401) and a locking arm (402), the connecting arm (401) is hinged with the connecting end (501), the connecting arm (401) is horizontally provided with a limiting bolt (403) which can abut against the end face of the wheel hub, and the locking arm (402) can abut against the other end face of the wheel hub.

6. The bridge oil seal press assembly of claim 5 wherein, The adjusting end (504) is in the shape of a door, the adjusting end (504) is symmetrically provided with two straight slot holes (505), the connecting end (501) is symmetrically provided with two positioning cylinder groups (503), the symmetry planes of the two straight slot holes (505) and the two positioning cylinder groups (503) are coplanar and are the central planes of the press-fitting head (10), the positioning cylinder group (503) comprises a plurality of parallel positioning cylinders, and the two positioning cylinders in the two positioning cylinder groups (503) which are symmetric about the symmetry plane can be sleeved on the two adjacent wheel hub bolts on the top of the wheel hub.

7. The bridge oil seal press assembly of claim 6 wherein, The press-fitting head (10) is connected with the piston rod of the pneumatic cylinder (1) through a torsion spring (2).

8. The bridge oil seal press assembly of claim 7, wherein, The press-fitting head (10) is detachably connected with a mounting seat (11), and the mounting seat (11) is connected with the piston rod through the torsion spring (2).

9. The bridge oil seal press assembly of claim 8, wherein, The press-fitting head (10) comprises a mounting part (1001) in the shape of a cylinder and a guide part (1002) in the shape of a circular truncated cone.

10. The bridge oil seal press assembly of claim 5 wherein, The connecting end (501) is provided with an ear (502).

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