Special tool for installing oil seal

Abstract

The utility model discloses a special tool for oil seal installation, and relates to the technical field of oil seal installation. The clamp comprises an inner clamping seat, an outer clamping seat, a fixing plate and a tightening bolt, the outer clamping seat comprises an outer end plate, one end of the tightening bolt is fixed to the outer side of the outer end plate, an inner supporting column is fixed to the axis of the inner side of the outer end plate, the inner clamping seat is composed of a plurality of branch seat plates, each branch seat plate comprises an arc-shaped edge, a magnet is fixed to the outer side of the arc-shaped edge, and an inner end plate is integrally arranged on the inner side of the arc-shaped edge. And the arc-shaped edges of the plurality of branch seat plates form a sleeve structure which is sleeved outside the inner support column. The framework oil seal can be completely protected through the design of the inner clamping seat and the outer clamping seat, force can be applied to installation of the oil seal through the tightening bolt, the requirement of interference fitting is met, the position stability of the oil seal during displacement can be ensured in the whole installation process, the problem of angle deviation cannot occur, and the installation precision and efficiency are improved.

Description

Technical Field

[0001] This utility model belongs to the field of oil seal installation technology, and in particular relates to a special tool for oil seal installation. Background Technology

[0002] For the installation of skeleton oil seals, the oil seal and the mounting position are interference fit, so force needs to be applied during installation. The current installation method is to first determine the position of the oil seal, then place a shim plate, and apply force to the oil seal by hammering the shim plate. However, due to the special structure of skeleton oil seals, if the hammering point is misaligned or uneven, problems such as misaligned installation angle, poor installation accuracy, and damage to the oil seal will occur, thus affecting the normal sealing and use of the oil seal. Summary of the Invention

[0003] The purpose of this utility model is to provide a special tool for oil seal installation. The design of the inner and outer clamps can completely protect the skeleton oil seal. By tightening the bolts, force can be applied to the installation of the oil seal to meet the requirements of interference fit. Throughout the installation process, the positional stability of the oil seal during displacement can be ensured, and there will be no angular deviation problem, thus improving the installation accuracy and efficiency.

[0004] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0005] This utility model is a special tool for oil seal installation, including an inner clamp, an outer clamp, a fixing plate and tightening bolts;

[0006] The outer clamp includes an outer end plate, one end of the tightening bolt is fixed to the outer side of the outer end plate, and an inner support column is fixed at the axial center of the inner side of the outer end plate;

[0007] The inner clamp is composed of several sub-seat plates. Each sub-seat plate includes an arc-shaped edge. A magnet is fixed to the outer side of the arc-shaped edge. An inner end plate is integrally provided on the inner side of the arc-shaped edge. The arc-shaped edges of several sub-seat plates form a sleeve structure and are fitted onto the outside of the inner support column. The arc-shaped edge is fixed to the outer end plate by a magnet. An oil seal groove is formed between the outer side of the arc-shaped edge, the inner end plate, and the outer end plate.

[0008] The fixing plate has a screw sleeve in the middle, and the fixing plate is threaded onto the tightening bolt through the screw sleeve. Both ends of the fixing plate are integrally connected with support ears through inner folded edges, and the support ears are provided with installation ports.

[0009] Furthermore, it also includes an oil seal mounting position, which has a preset opening or flange, and the fixing plate is fixed to the outside of the oil seal mounting position by means of lugs and fasteners.

[0010] Furthermore, it also includes a skeleton oil seal, which is disposed in an oil seal groove, with the inner side of the skeleton oil seal in contact with the outer surface of the arc-shaped edge, and the two ends of the skeleton oil seal in contact with the inner end plate and the outer end plate, respectively.

[0011] Furthermore, the outer diameters of the inner end plate and the outer end plate are the same, and the outer diameter of the skeleton oil seal is larger than the outer diameter of the inner end plate.

[0012] Furthermore, the outer diameter of the inner end plate is consistent with the inner diameter of the oil seal mounting position.

[0013] Furthermore, the tightening bolt is a full-thread bolt, and the end of the tightening bolt away from the outer end plate is provided with a hexagonal screw head.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model can completely protect the skeleton oil seal through the design of inner and outer clamps. By tightening the bolts, force can be applied to the installation of the oil seal to meet the requirements of interference connection. Throughout the installation process, the positional stability of the oil seal during displacement can be ensured, and there will be no angular deviation problem, thus improving the installation accuracy and efficiency.

[0016] 2. The inner and outer clamps of this utility model are detachable, which facilitates the arrangement of the skeleton oil seal. At the same time, the inner clamp is separable. After installation, the outer clamp and tightening bolts are disassembled first. The inner clamp, which is located inside the oil seal, can be divided into multiple parts and removed separately, which is convenient for the operator.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a special tool for oil seal installation according to the present invention;

[0020] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0021] Figure 3 This is a structural diagram of the inner clamp, outer clamp, and tightening bolt;

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Inner clamp, 2-Outer clamp, 3-Fixing plate, 4-Tightening bolt, 5-Skeleton oil seal, 101-Divider plate, 102-Arc edge, 103-Magnet, 104-Inner end plate, 201-Outer end plate, 202-Inner support column, 301-Threaded sleeve, 302-Inner folded edge, 303-Support lug, 401-Hexagonal screw head. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-3 As shown, this utility model is a special tool for oil seal installation, including an inner clamp 1, an outer clamp 2, a fixing plate 3, and a tightening bolt 4;

[0026] The outer clamp 2 includes an outer end plate 201, one end of the tightening bolt 4 is fixed to the outer side of the outer end plate 201, and an inner support column 202 is fixed at the inner axis of the outer end plate 201.

[0027] The inner clamp 1 is composed of several sub-plates 101. Each sub-plate 101 includes an arc-shaped edge 102. A magnet 103 is fixed to the outer side of the arc-shaped edge 102. An inner end plate 104 is integrally provided on the inner side of the arc-shaped edge 102. The arc-shaped edges 102 of the several sub-plates 101 form a sleeve structure and are fitted onto the outside of the inner support column 202. The arc-shaped edge 102 is fixed to the outer end plate 201 by the magnet 103. An oil seal groove is formed between the outer side of the arc-shaped edge 102, the inner end plate 104, and the outer end plate 201.

[0028] The fixing plate 3 has a screw sleeve 301 in the middle. The fixing plate 3 is threaded onto the tightening bolt 4 through the screw sleeve 301. Both ends of the fixing plate 3 are integrally connected to the support ears 303 through the inner folded edge 302. The support ears 303 are provided with installation ports.

[0029] It also includes an oil seal mounting position, which is provided with a preset port or flange. The fixing plate 3 is fixed to the outside of the oil seal mounting position by the lug 303 and fasteners.

[0030] Among them, such as Figure 2 As shown, it also includes a skeleton oil seal 5, which is disposed in the oil seal groove. The inner side of the skeleton oil seal 5 is attached to the outer surface of the arc edge 102, and the two ends of the skeleton oil seal 5 are attached to the inner end plate 104 and the outer end plate 201, respectively.

[0031] The inner end plate 104 and the outer end plate 201 have the same outer diameter, and the outer diameter of the skeleton oil seal 5 is larger than the outer diameter of the inner end plate 104.

[0032] The outer diameter of the inner end plate 104 is consistent with the inner diameter of the oil seal mounting position.

[0033] Among them, such as Figure 1-3 As shown, the tightening bolt 4 is a full-thread bolt, and the end of the tightening bolt 4 away from the outer end plate 201 is provided with a hexagonal screw head 401.

[0034] The inner clamp 1 and the outer clamp 2 are magnetically connected by a magnet 103, ensuring that the magnetism of the magnet 103 is less than the interference force between the skeleton oil seal 5 and the mounting position.

[0035] The working principle of this utility model is as follows: The skeleton oil seal 5 is fitted onto the arc-shaped edge 102 of all the seat plates 101. The inner clamp 1 with the skeleton oil seal 5 is fitted onto the inner support column 202 of the outer clamp 2. The inner clamp 1 and the outer clamp 2 are integrated into a whole by the magnet 103. The tool is moved to the outside of the installation position. The fixing plate 3 is installed and positioned by fasteners and support ears 303. Tightening the tightening bolt 4 can move the inner clamp 1, the outer clamp 2 and the skeleton oil seal 5 towards the oil seal installation position. When the skeleton oil seal 5 is in position, the tightening bolt 4 is rotated in the opposite direction, which can drive the outer clamp 2 to move out. Due to the interference force of the skeleton oil seal 5, the inner clamp 1 and the outer clamp 2 will separate. Due to the removal of the inner support column 202, the seat plates 101 can be moved out one by one from the skeleton oil seal 5.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A special tool for oil seal installation, characterized by: It includes an inner clamp (1), an outer clamp (2), a fixing plate (3), and a tightening bolt (4); The outer clamp (2) includes an outer end plate (201), one end of the tightening bolt (4) is fixed to the outside of the outer end plate (201), and an inner support column (202) is fixed at the inner axis of the outer end plate (201). The inner clamp (1) is composed of several sub-seat plates (101). Each sub-seat plate (101) includes an arc-shaped edge (102). A magnet (103) is fixed on the outer side of the arc-shaped edge (102). An inner end plate (104) is integrally provided on the inner side of the arc-shaped edge (102). The arc-shaped edges (102) of several sub-seat plates (101) form a sleeve structure and are fitted on the outside of the inner support column (202). The arc-shaped edge (102) is fixed to the outer end plate (201) by the magnet (103). An oil seal groove is formed between the outer side of the arc-shaped edge (102), the inner end plate (104), and the outer end plate (201). The fixing plate (3) is provided with a screw sleeve (301) in the middle. The fixing plate (3) is threaded onto the tightening bolt (4) through the screw sleeve (301). Both ends of the fixing plate (3) are integrally connected with a support ear (303) through an inner folded edge (302). The support ear (303) is provided with an installation port.

2. A special tool for mounting of oil seal as claimed in claim 1 wherein, It also includes an oil seal mounting position, which is provided with a preset port or flange, and the fixing plate (3) is fixed to the outside of the oil seal mounting position by means of the lug (303) and fasteners.

3. A special tool for mounting of oil seal according to claim 2, characterized in that, It also includes a skeleton oil seal (5), which is disposed in the oil seal groove. The inner side of the skeleton oil seal (5) is attached to the outer surface of the arc edge (102), and the two ends of the skeleton oil seal (5) are attached to the inner end plate (104) and the outer end plate (201) respectively.

4. A special tool for mounting of oil seal according to claim 3, characterized in that, The outer diameters of the inner end plate (104) and the outer end plate (201) are the same, and the outer diameter of the skeleton oil seal (5) is greater than the outer diameter of the inner end plate (104).

5. A special tool for mounting of oil seal according to claim 4, characterized in that, The outer diameter of the inner end plate (104) is consistent with the inner diameter of the oil seal mounting position.

6. A special tool for oil seal installation as claimed in claim 1 wherein, The tightening bolt (4) is a full-thread bolt, and the end of the tightening bolt (4) away from the outer end plate (201) is provided with a hexagonal screw head (401).

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