Oil seal installation tool

Abstract

The utility model discloses an oil seal installation tool which comprises a press fitting assembly and a guide assembly, the press fitting assembly comprises a shell, the top of the shell is provided with a vertical power piece, the fixed end of the vertical power piece is fixedly connected to the shell, the action end of the vertical power piece is fixedly connected with a press fitting piece, and the press fitting piece is fixedly connected with the guide assembly. A guide hole is vertically formed in the bottom of the press-fitting piece. The guide assembly comprises a guide shaft; when the oil seal is press-fitted, the guide shaft is mounted on a workpiece, and the press-fitting assembly is located above the guide shaft. And when the action end of the vertical power piece extends out, the guide shaft can be inserted into the guide hole. By means of the oil seal installation tool, the oil seal can be smoothly installed in the assembling process of a flywheel shell assembly, it can be guaranteed that the installed oil seal makes uniform contact with a sealing face, the oil leakage phenomenon in the using process is effectively avoided, normal work of an engine is effectively guaranteed, and the work reliability of the engine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seal installation equipment, in particular to an oil seal installation tool. Background Art

[0002] In the assembly of the flywheel housing assembly, the oil seal plays the role of sealing the lubricating oil. In the prior art, when installing the oil seal, the oil seal is usually first installed on the bearing cover and then assembled on the transmission shaft. However, after assembly, the oil seal cannot evenly contact the sealing surface, resulting in oil leakage in some products after installation, which eventually causes the engine to fail to work normally, seriously affecting the reliability of the engine. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide an oil seal installation tool, which can smoothly install the oil seal during the assembly process of the flywheel housing assembly, and can ensure that the installed oil seal is in uniform contact with the sealing surface, effectively avoiding oil leakage during use, thereby effectively ensuring the normal operation of the engine and improving the reliability of the engine operation.

[0004] In order to solve the above technical problems, the technical solution of the utility model is:

[0005] An oil seal installation tool comprises: a press-fitting assembly and a guide assembly, the press-fitting assembly comprises a shell, a vertical power piece is arranged on the top of the shell, the fixed end of the vertical power piece is fixedly connected to the shell, the action end of the vertical power piece is fixedly connected to the press-fitting piece, and a guide hole is vertically arranged on the bottom of the press-fitting piece; the guide assembly comprises a guide shaft, the guide shaft comprises a guide shaft body, the guide shaft body is a conical structure, and the outer diameter of the upper end of the guide shaft body is smaller than the outer diameter of the lower end of the guide shaft body; when the oil seal is press-fitted, the guide shaft is installed on the workpiece, and the press-fitting assembly is located above the guide shaft; when the action end of the vertical power piece is extended, the guide shaft can be inserted into the guide hole.

[0006] Furthermore, the guide assembly also includes an external spline shaft, which is arranged on the lower surface of the guide shaft, and the external spline shaft is coaxially arranged with the guide shaft.

[0007] Furthermore, the press-fitted part is connected to the action end of the vertical power part through a connecting plate.

[0008] Furthermore, the press-fitting part is a press-fitting sleeve, the inner cavity of the press-fitting sleeve is the guide hole, and the lower end of the press-fitting sleeve is the press-fitting portion.

[0009] Furthermore, a positioning stop is provided on the outer periphery of the press-fitting portion.

[0010] Furthermore, ear plates are horizontally symmetrically arranged on the outer side of the bottom of the shell, and when the oil seal is press-fitted, the ear plates are used to connect with the workpiece.

[0011] Furthermore, the ear plate is provided with connecting screws.

[0012] Furthermore, the vertical power member is a vertically arranged cylinder.

[0013] Furthermore, the fixed end of the cylinder is fixedly arranged outside the shell.

[0014] Furthermore, a mounting plate is fixedly provided on the top of the fixed end of the cylinder, and a lifting ring is installed on the upper surface of the mounting plate.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The oil seal installation tool of the utility model includes a press-fitting assembly and a guide assembly. The press-fitting assembly includes a shell, a vertical power member is arranged on the top of the shell, the fixed end of the vertical power member is fixedly connected to the shell, the action end of the vertical power member is fixedly connected to the press-fitting member, and a guide hole is vertically arranged on the bottom of the press-fitting member. The guide assembly includes a guide shaft, the guide shaft body is a conical structure, and the outer diameter of the upper end of the guide shaft body is smaller than the outer diameter of the lower end of the guide shaft body. When the oil seal is press-fitted, the guide shaft is installed on the workpiece, and the press-fitting assembly is located above the guide shaft; when the action end of the vertical power member is extended, the guide shaft can be inserted into the guide hole. The use of the oil seal installation tool of the utility model can smoothly install the oil seal during the assembly process of the flywheel housing assembly, and can ensure that the installed oil seal is in uniform contact with the sealing surface, effectively avoiding oil leakage during use, thereby effectively ensuring the normal operation of the engine and improving the reliability of the engine operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional diagram of the press-fit assembly of the oil seal installation tool of the utility model;

[0018] Figure 2 It is a structural schematic diagram of a press-fit assembly of an oil seal installation tool of the utility model;

[0019] Figure 3 yes Figure 1 An enlarged perspective view of the medium pressure sleeve;

[0020] Figure 4 It is a structural schematic diagram of the guide assembly of the oil seal installation tool of the utility model;

[0021] Figure 5 This is a structural schematic diagram of the oil seal installation tooling of the utility model in use

[0022] In the figure: 1. lifting ring; 2. shell; 21. ear plate; 3. vertical power part; 4. connecting plate; 5. press-fit sleeve; 51. positioning stop; 52. press-fit part; 6. guide shaft; 61. guide shaft body; 62. hand-held part; 7. connecting screw; 8. mounting plate; 9. external spline shaft; 10. internal spline shaft; 11. bearing seat; 12. oil seal. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0024] Combination Figures 1 to 5 As shown together, an oil seal installation tool includes a press-fit assembly and a guide assembly.

[0025] The press-fitting assembly includes a shell 2, a vertical power piece 3 is arranged on the top of the shell 2, the fixed end of the vertical power piece 3 is fixedly connected to the shell 2, the action end of the vertical power piece 3 is fixedly connected to the press-fitting piece, and a guide hole is vertically arranged at the bottom of the press-fitting piece.

[0026] The guide assembly includes a guide shaft 6, which includes a guide shaft body 61. The guide shaft body 61 is a conical structure, and the outer diameter of the upper end of the guide shaft body 61 is smaller than the outer diameter of the lower end of the guide shaft body 61. Preferably, the guide assembly also includes an external spline shaft 9, which is arranged on the lower surface of the guide shaft 6, and the external spline shaft 9 is coaxially arranged with the guide shaft 6.

[0027] When the oil seal 12 is pressed, the guide shaft 6 is installed on the workpiece. Since lubricating oil needs to be applied first when the oil seal 12 is sleeved on the outer circumferential surface of the guide shaft body 61, the operator may slip when placing the guide assembly on the workpiece. Therefore, a hand-held portion 62 is provided at the upper end of the guide shaft body 61 to facilitate the operator to take and place the guide assembly. Specifically, the workpiece of this embodiment is a flywheel housing assembly, and a bearing seat 11 and an inner spline shaft 10 are provided on the flywheel housing assembly. When in use, the guide shaft 6 is connected to the spline of the inner spline shaft 10 through the outer spline shaft 9. The press-fit assembly is located above the guide shaft 6; when the action end of the vertical power member is extended, the guide shaft 6 can be inserted into the guide hole.

[0028] Preferably, the press-fitting part is connected to the action end of the vertical power part 3 through a connecting plate 4 .

[0029] Further preferably, the press-fitting part is a press-fitting sleeve 5, the inner cavity of the press-fitting sleeve 5 is the guide hole, and the lower end of the press-fitting sleeve 5 is a press-fitting portion 52. Since the press-fitting portion 52 of the press-fitting sleeve 5 is a planar structure, when the oil seal 12 is press-fitted, it can be ensured that the installed oil seal 12 is in uniform contact with the sealing surface, effectively avoiding oil leakage during use.

[0030] Preferably, a positioning stop 51 is provided on the outer periphery of the press-fitting portion 52 , and the depth of the positioning stop 51 is 1 to 2 mm.

[0031] The outer side of the bottom of the housing 2 is horizontally and symmetrically provided with ear plates 21 , and when the oil seal 12 is press-fitted, the ear plates 21 are used to connect with the workpiece.

[0032] Preferably, connecting screws 7 are provided on the ear plate 21 , and the ear plate 21 is fixedly connected to the workpiece via the connecting screws 7 .

[0033] Preferably, the vertical power member 3 is a vertically arranged cylinder.

[0034] The fixed end of the cylinder is fixedly arranged outside the housing 2 .

[0035] A mounting plate 8 is fixedly provided on the top of the fixed end of the cylinder, and a lifting ring 1 is installed on the upper surface of the mounting plate 8 to facilitate the lifting of the oil seal installation tool of the utility model.

[0036] The press-fitting sleeve 5 and the connecting plate 4 are detachably connected, and the press-fitting sleeve 5 and the guide assembly of corresponding size can be replaced according to the size of the oil seal 12 to be installed.

[0037] The following is a detailed description of the process of installing the oil seal 12 on the bearing seat 11 on the flywheel housing assembly using the oil seal installation tool of the utility model:

[0038] Combination Figure 5 As shown, according to the needs, an external spline shaft 9 matching the internal spline shaft 10 on the bearing seat 11 and a guide assembly consisting of a guide shaft 6 matching the guide hole of the press-fit sleeve 5 are selected.

[0039] First, lubrication oil is applied to the outer peripheral surface of the guide shaft body 61 of the guide shaft 6, and the oil seal 12 is sleeved on the outer peripheral surface of the guide shaft body 61, and then the outer spline shaft 9 of the guide assembly is connected to the inner spline shaft 10 on the bearing seat 11 by spline connection, so that the guide shaft 6 is installed on the bearing seat 11 of the flywheel housing assembly. Then, the press-fit assembly of the utility model is fixedly connected to the bearing seat 11 of the flywheel housing assembly through the connecting screws 7 on the two ear plates 21. At this time, it is ensured that the press-fit sleeve 5 of the press-fit assembly is located directly above the guide shaft 6. The action end of the cylinder extends, the press-fit sleeve 5 moves down, and the guide shaft 6 extends into the guide hole of the press-fit sleeve 5. The telescopic end of the cylinder continues to extend, and the press-fit sleeve 5 continues to move down. The press-fit portion 52 of the press-fit sleeve 5 pushes the oil seal 12 to continue to move down until the positioning stop 51 of the press-fit sleeve 5 contacts the bearing seat 11, and the oil seal 12 is pressed into place.

[0040] After the press-fitting is completed, the telescopic end of the cylinder is retracted, and the press-fitting sleeve 5 is moved upward. The connecting screw 7 is removed, and the power device (not shown) removes the press-fitting assembly through the lifting ring 1, and then the guide assembly is taken away.

[0041] In the description of this specification, it should be understood that the orientations or positional relationships described in terms of “upper surface”, “lower surface”, “upper end”, “lower end”, “external spline shaft”, “internal spline shaft”, “top”, etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present invention.

[0042] The above is only an example of the best implementation of the utility model, and the parts not described in detail are common knowledge of ordinary technicians in this field. The protection scope of the utility model shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the utility model is also within the protection scope of the utility model.

Claims

1. An oil seal installation tool, characterized in that: include: Press-fit components and guide components, The press-fit assembly comprises a shell, a vertical power piece is arranged on the top of the shell, a fixed end of the vertical power piece is fixedly connected to the shell, an action end of the vertical power piece is fixedly connected to a press-fit piece, and a guide hole is vertically arranged on the bottom of the press-fit piece; The guide assembly comprises a guide shaft, the guide shaft comprises a guide shaft body, the guide shaft body is a conical structure, and the outer diameter of the upper end of the guide shaft body is smaller than the outer diameter of the lower end of the guide shaft body; When the oil seal is press-fitted, the guide shaft is installed on the workpiece, and the press-fit assembly is located above the guide shaft; when the action end of the vertical power member is extended, the guide shaft can be inserted into the guide hole.

2. The oil seal installation tool according to claim 1, characterized in that: The guide assembly also includes an external spline shaft, which is arranged on the lower surface of the guide shaft, and the external spline shaft is coaxially arranged with the guide shaft.

3. The oil seal installation tool according to claim 1, characterized in that: The press-fitting part is connected to the action end of the vertical power part through a connecting plate.

4. The oil seal installation tool as claimed in claim 1, characterized in that: The press-fitting part is a press-fitting sleeve, the inner cavity of the press-fitting sleeve is the guide hole, and the lower end of the press-fitting sleeve is the press-fitting part.

5. The oil seal installation tool as claimed in claim 4, characterized in that: The outer periphery of the press-fitting portion is provided with a positioning stop.

6. The oil seal installation tool according to claim 1, characterized in that: The outer side of the bottom of the shell is horizontally and symmetrically provided with ear plates, and when the oil seal is press-fitted, the ear plates are used to connect with the workpiece.

7. The oil seal installation tool as claimed in claim 6, characterized in that: The ear plate is provided with connecting screws.

8. The oil seal installation tool as claimed in claim 1, characterized in that: The vertical power member is a vertically arranged cylinder.

9. The oil seal installation tool as claimed in claim 8, characterized in that: The fixed end of the cylinder is fixedly arranged outside the shell.

10. The oil seal installation tool according to claim 9, characterized in that: A mounting plate is fixedly arranged on the top of the fixed end of the cylinder, and a lifting ring is installed on the upper surface of the mounting plate.

Images