Bearing cover oil seal press fitting tool

Abstract

This application discloses a bearing cap oil seal press-fitting fixture, relating to the field of mechanical assembly technology. It includes a base, a press head assembly, an elastic reset mechanism, and an oil seal positioning mechanism. The base is used to position the bearing cap to be press-fitted. The press head assembly consists of a main press body that can move axially relative to the bearing cap and an oil seal receiving ring, which are connected by a guide and limiting mechanism to restrict axial relative displacement only. The oil seal positioning mechanism is located on the oil seal receiving ring to fix the oil seal, and the elastic reset mechanism acts between the main press body and the oil seal receiving ring to provide a reset elastic force. This application achieves integrated positioning of the bearing cap, fixing of the oil seal, press-fitting guidance, and reset, ensuring that the press-fitting force is transmitted along the axis, avoiding oil seal misalignment, solving the defects of traditional hammering, improving assembly accuracy and efficiency, ensuring the sealing performance of the gearbox, and reducing maintenance costs.

Description

Technical Field

[0001] This application belongs to the field of mechanical assembly technology, and specifically relates to a bearing cover oil seal press-fit tool. Background Technology

[0002] In the assembly of precision transmission machinery such as gearboxes and reducers, the installation of bearing cover oil seals is a critical step. The quality of their sealing performance directly determines the long-term, reliable operation of the entire machine, preventing lubricant leakage and the intrusion of external contaminants. Currently, in small and medium-sized manufacturing enterprises both domestically and internationally, the installation of these interference-fit oil seals still widely relies on the traditional manual hammering method. Specifically, operators use simple tools such as hammers to force the oil seal into the mounting groove of the bearing cover by tapping a simple sleeve or directly impacting it, relying on their personal experience.

[0003] However, this installation method, which relies on manual experience, has several inherent drawbacks. First, due to the lack of effective axial guidance and radial positioning, it is difficult to ensure that the direction of the striking force is always aligned with the oil seal axis. This easily leads to scraping or squeezing between the oil seal's metal skeleton or elastic lip and the sharp edge of the bearing cap mounting hole during the pressing process, causing "cut edge" damage to the oil seal. This damage is often insidious and difficult to detect immediately after assembly, but it lays the groundwork for long-term grease leakage. Second, the installation force and final pressing depth are entirely controlled by the operator's feel, resulting in poor consistency and easily causing problems such as "inadequate installation" or "over-pressing," which seriously affects the sealing effect and product qualification rate. Utility Model Content

[0004] The purpose of this application is to provide a bearing cover oil seal press-fit fixture. This addresses the problem mentioned in the background art where traditional manual pressing of bearing cover oil seals easily leads to edge cutting and improper installation, resulting in gearbox oil leakage.

[0005] To achieve the above objectives, this application adopts the following technical solution: A bearing cap oil seal press-fit fixture includes: a base, a press head assembly, an elastic reset mechanism, and an oil seal positioning mechanism; the base is used to install and position the bearing cap to be press-fitted; the press head assembly includes a main press body and an oil seal receiving ring capable of relative axial movement; the oil seal positioning mechanism is disposed on the oil seal receiving ring and is used to fix the oil seal before press-fitting; the main press body and the oil seal receiving ring are connected by a guide limiting mechanism, which restricts the main press body and the oil seal receiving ring to only be able to generate relative displacement along the axial direction; the elastic reset mechanism acts between the main press body and the oil seal receiving ring to provide a reset elastic force that causes the two to move away from each other.

[0006] In one possible implementation, the guiding and limiting mechanism includes a guide member disposed on the oil seal receiving ring, and a guide groove disposed on the main pressure body and slidingly engaging with the guide member.

[0007] In one possible implementation, the guide is a screw or a guide post.

[0008] In one possible implementation, the oil seal positioning mechanism is an elastic clamping element disposed on the inner wall of the oil seal receiving ring.

[0009] In one possible implementation, the resilient locking element is a spring plunger or a resilient steel ball.

[0010] In one possible implementation, the elastic reset mechanism is a helical spring sleeved on the guide limiting mechanism, or a plurality of elastic elements evenly distributed between the main pressure body and the oil seal receiving ring.

[0011] In one possible implementation, a rigid limiting structure is provided between the main pressure body and the oil seal receiving ring to limit the minimum distance between them.

[0012] In one possible implementation, the rigid limiting structure is formed by the stepped stage of the main pressure body and the corresponding end face of the oil seal receiving ring.

[0013] In one possible implementation, the base is provided with a positioning structure for engaging with a stop or locating pin of the bearing cap.

[0014] In one possible implementation, the base, main pressure body, and oil seal receiving ring are made of metallic material.

[0015] Compared with the prior art, this application has the following beneficial effects: This application provides a bearing cover oil seal press-fitting fixture, which integrates bearing cover positioning, oil seal fixing, press-fitting guidance and resetting by disassembling the fixture into modular structures such as base and press head assembly, completely replacing the traditional manual hammering method; the axial relative movement design of the main press body and the oil seal receiving ring ensures that the press-fitting force is transmitted along the axis, avoiding the oil seal from being deviated by force, while the elastic resetting mechanism can automatically complete the resetting of the component after press-fitting, improving assembly efficiency and operation convenience.

[0016] In one possible implementation, the sliding fit structure between the guide and the guide groove strictly limits the relative movement direction of the main pressure body and the oil seal receiving ring, allowing them to move only along the axial direction. This avoids radial offset or rotation during the pressing process, ensuring that the oil seal is always pressed along the preset axis, and further reducing the risk of oil seal edge cutting. The uniform distribution design of multiple guide structures can make the force more balanced and improve the overall stability of the tooling.

[0017] In one possible implementation, when the guide component is made of screws, the depth of its insertion into the guide groove can be adjusted by turning the screws, thus taking into account both guiding and limiting functions. Screws are also easy to purchase, have low cost, and are convenient for later maintenance and replacement. When the guide post is made, its cylindrical surface has higher guiding accuracy, which can further improve the stability of the relative movement between the main pressure body and the oil seal receiving ring, and meet the high-precision press-fit requirements. The two options can be flexibly adapted according to the actual production accuracy requirements.

[0018] In one possible implementation, the elastic clamping element abuts against the outer wall of the oil seal through elastic force, which can stably fix the oil seal in the oil seal receiving ring before pressing, preventing the oil seal from falling off or shifting during the transfer or initial pressing stage; the even distribution of multiple sets of elastic clamping elements can make the oil seal bear the force evenly, ensuring that the oil seal and the oil seal receiving ring are coaxial, laying the foundation for subsequent precise pressing.

[0019] In one possible implementation, the design of the helical spring with a guide can prevent spring deflection, ensure that the restoring force is transmitted axially, and the helical spring has low procurement cost and is easy to install. When a uniformly distributed disc spring is used, it has the characteristics of high stiffness and stable deformation, which can provide sufficient restoring force in a small space and is suitable for compact tooling design. The two elastic restoring structures can be flexibly selected according to the tooling space and restoring force requirements.

[0020] In one possible implementation, the design of the helical spring with a guide can prevent spring deflection, ensure that the restoring force is transmitted axially, and the helical spring has low procurement cost and is easy to install. When a uniformly distributed disc spring is used, it has the characteristics of high stiffness and stable deformation, which can provide sufficient restoring force in a small space and is suitable for compact tooling design. The two elastic restoring structures can be flexibly selected according to the tooling space and restoring force requirements.

[0021] In one possible implementation, the bearing cover can be stably fixed on the base by a positioning structure with a stop fit or a locating pin fit, ensuring that the oil seal mounting hole of the bearing cover is coaxial with the pressure head assembly, and avoiding the bearing cover shifting during the press-fitting process, which would cause the oil seal to be cut off. At the same time, the design of the positioning structure makes the installation and disassembly of the bearing cover convenient, without the need for additional clamping devices, thus improving assembly efficiency. Attached Figure Description

[0022] Figure 1 A cross-sectional view of a bearing cover oil seal press-fitting fixture provided in this application; Figure 2 This is a partial structural diagram of a bearing cover oil seal press-fitting fixture provided in this application.

[0023] The attached diagram is labeled as follows: 1. Main pressure body; 2. Oil seal receiving ring; 3. Spring; 4. Guide component; 5. Elastic clamping element; 6. Base; 7. Oil seal positioning mechanism; 8. Bearing cover. Detailed Implementation

[0024] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0025] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly defined. The specific embodiments of this application will be further described in detail below with reference to the accompanying drawings.

[0027] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0028] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] like Figure 1 and Figure 2 As shown, this application discloses a bearing cover oil seal press-fitting fixture, which may include a base 6, a press head assembly, an elastic reset mechanism, and an oil seal positioning mechanism 7.

[0031] The base 6 is used to install and position the bearing cover 8 to be pressed into place.

[0032] Optionally, the base 6 is made of 45 steel, and its top surface has an annular groove that matches the stop of the bearing cover 8 to be pressed in, for precise positioning of the bearing cover 8.

[0033] The pressure head assembly includes a main pressure body 1 that can move relative to the axial direction and an oil seal receiving ring 2.

[0034] Specifically, in this pressure head assembly, the main pressure body 1 is a cylindrical structure, and the oil seal receiving ring 2 is an annular sleeve structure. The two are coaxially arranged and can slide relative to each other along the axial direction.

[0035] The oil seal positioning mechanism 7 is installed on the oil seal receiving ring 2 and is used to fix the oil seal before pressing.

[0036] The main pressure body 1 and the oil seal receiving ring 2 are connected by a guide limiting mechanism, which restricts the main pressure body 1 and the oil seal receiving ring 2 to only generate relative displacement along the axial direction.

[0037] The elastic reset mechanism acts between the main pressure body 1 and the oil seal receiving ring 2 to provide a reset elastic force that causes the two to move away from each other.

[0038] In this embodiment, by disassembling the tooling into modular structures such as the base 6 and the pressure head assembly, the integrated functions of positioning the bearing cover 8, fixing the oil seal, guiding the pressing and resetting are realized, completely replacing the traditional manual hammering method; the axial relative movement design of the main pressure body 1 and the oil seal receiving ring 2 ensures that the pressing force is transmitted along the axis, avoiding the oil seal from being deviated by force, while the elastic reset mechanism can automatically complete the reset of the component after pressing, improving assembly efficiency and ease of operation.

[0039] In one possible implementation, the guide limiting mechanism includes a guide member 4 disposed on the oil seal receiving ring 2, and a guide groove disposed on the main pressure body 1 and slidingly engaging with the guide member 4.

[0040] Specifically, the guide limiting mechanism may include three guide members 4 disposed on the upper end face of the oil seal receiving ring 2, and the three guide members 4 are evenly distributed along the circumferential direction of the oil seal receiving ring 2.

[0041] The main pressure body 1 has three through guide grooves at corresponding positions. The cross-sectional shape of the guide grooves is adapted to the shape of the guide member 4, and the guide member 4 can slide along the length of the guide groove.

[0042] In this embodiment, the sliding fit structure between the guide member 4 and the guide groove strictly restricts the relative movement direction of the main pressure body 1 and the oil seal receiving ring 2, allowing them to move only along the axial direction, avoiding radial offset or rotation during the pressing process, ensuring that the oil seal is always pressed along the preset axis, and further reducing the risk of oil seal edge cutting; the uniform distribution design of multiple sets of guide structures can make the force more balanced and improve the overall stability of the tooling.

[0043] In one possible implementation, the guide 4 is a screw or a guide post.

[0044] Specifically, the guide component 4 is made of hexagon socket head cap screw. The screw shank passes through the threaded hole of the oil seal receiving ring 2 and extends into the guide groove of the main pressure body 1. The screw head is in contact with the upper end face of the oil seal receiving ring 2.

[0045] Alternatively, the guide component 4 can be a cylindrical guide post, which is fixed to the oil seal receiving ring 2 by interference fit. The free end of the guide post is inserted into the guide groove of the main pressure body 1, and the fit clearance between the guide post and the guide groove is controlled at 0.01-0.03mm.

[0046] In this embodiment, when the guide 4 is selected as a screw, the depth of its insertion into the guide groove can be adjusted by turning the screw, taking into account both guiding and limiting functions. Moreover, the screw is easy to purchase, has low cost, and is convenient for later maintenance and replacement. When the guide post is selected, its cylindrical surface has higher guiding accuracy, which can further improve the stability of the relative movement between the main pressure body 1 and the oil seal receiving ring 2, and meet the high-precision press-fit requirements. The two selections can be flexibly adapted according to the actual production accuracy requirements.

[0047] In one possible implementation, the oil seal positioning mechanism 7 is an elastic clamping element 5 disposed on the inner wall of the oil seal receiving ring 2.

[0048] Optionally, the elastic clamping element 5 can be provided in three or other quantities. Specifically, the three elastic clamping elements 5 are evenly distributed along the circumference of the oil seal receiving ring 2, and the axis of each elastic clamping element 5 is consistent with the radial direction of the oil seal receiving ring 2. The inner end of the elastic clamping element 5 can extend into the inner hole of the oil seal receiving ring 2 and abut against the outer wall of the inserted oil seal.

[0049] In this embodiment, the elastic clamping element 5 abuts against the outer wall of the oil seal through elastic force, which can stably fix the oil seal in the oil seal receiving ring 2 before pressing, and prevent the oil seal from falling off or shifting during the transfer or initial pressing stage; the uniform distribution of multiple sets of elastic clamping elements 5 can make the oil seal bear the force evenly, ensuring that the oil seal and the oil seal receiving ring 2 are coaxial, laying the foundation for subsequent accurate pressing.

[0050] In one possible implementation, the elastic clamping element 5 is a standard-sized spring 3 plunger. The spring 3 plunger is installed in the threaded hole on the side wall of the oil seal receiving ring 2 through a threaded connection. Rotating the spring 3 plunger can adjust the preload of the internal spring 3, thereby changing the clamping force of the protruding end against the oil seal.

[0051] Alternatively, the elastic clamping element 5 may be an elastic steel ball assembly, which includes a steel ball, a spring 3 and a sleeve. The sleeve is fixed in the mounting hole of the oil seal receiving ring 2, and the spring 3 pushes the steel ball out and into contact with the outer wall of the oil seal.

[0052] In the embodiments of this application, when a spring-loaded 3-plunger is selected, the preload can be adjusted to adapt to oil seals with different outer diameter specifications, thereby improving the versatility of the tooling. Moreover, the spring-loaded 3-plunger has a mature structure, high reliability, and is not prone to failure after long-term use. When an elastic steel ball assembly is selected, the point contact design between the steel ball and the oil seal can reduce frictional damage to the outer wall of the oil seal. At the same time, the rolling characteristics of the steel ball facilitate the insertion and removal of the oil seal, improving the ease of operation.

[0053] In one possible implementation, the elastic reset mechanism is a helical spring 3 sleeved on the guide limiting mechanism, or a plurality of elastic elements evenly distributed between the main pressure body 1 and the oil seal receiving ring 2.

[0054] Optionally, the elastic reset mechanism is a helical spring 3 sleeved on the guide limiting mechanism. The upper end of the helical spring 3 abuts against the lower end face of the main pressure body 1, and the lower end abuts against the upper end face of the oil seal receiving ring 2. In its natural state, the helical spring 3 is in a pre-compressed state. Alternatively, the elastic reset mechanism is five disc springs 3 evenly distributed between the main pressure body 1 and the oil seal receiving ring 2. The five disc springs 3 are spaced apart along the circumferential direction and are respectively fixed in the corresponding mounting grooves of the main pressure body 1 and the oil seal receiving ring 2 by positioning pins.

[0055] In this embodiment, the design of the guide member 4 on the helical spring 3 can prevent the spring 3 from deviating and ensure that the reset force is transmitted axially. The helical spring 3 has low procurement cost and is easy to install. When a uniformly distributed disc spring 3 is used, it has the characteristics of high stiffness and stable deformation, which can provide sufficient reset force in a small space. It is suitable for compact tooling design. The two elastic reset structures can be flexibly selected according to the tooling space and reset force requirements.

[0056] In one possible implementation, a rigid limiting structure is provided between the main pressure body 1 and the oil seal receiving ring 2 to limit the minimum distance between them.

[0057] Specifically, the rigid limiting structure consists of an annular boss protruding from the lower end face of the main pressure body 1 and an annular stepped groove opened on the upper end face of the oil seal receiving ring 2.

[0058] When the main pressure body 1 moves downward along the axial direction, the annular boss can gradually extend into the annular step groove. When the lower end face of the annular boss contacts the bottom surface of the annular step groove, the main pressure body 1 can no longer move downward, and at this time the two reach the minimum distance.

[0059] In this embodiment, the rigid limiting structure can precisely limit the minimum distance between the main pressure body 1 and the oil seal receiving ring 2, thereby controlling the pressing depth of the oil seal and avoiding the problems of "over-pressing" or "under-pressing" during manual pressing. The limiting method of the rigid structure is stable and reliable, and is not affected by environmental factors such as temperature and vibration. It can ensure the consistency of pressing depth for a long time and improve the product qualification rate.

[0060] In one possible implementation, the rigid limiting structure is formed by the stepped section of the main pressure body 1 and the corresponding end face of the oil seal receiving ring 2.

[0061] Optionally, the main pressure body 1 has a stepped shaft structure, with the diameter of the shaft segment near the oil seal receiving ring 2 being smaller than that of the shaft segment on the other side, forming an annular platform stage.

[0062] The upper end face of the oil seal receiving ring 2 is a flat end face. When the main pressure body 1 moves downward to the stage where the end face of the stage fits against the upper end face of the oil seal receiving ring 2, the main pressure body 1 stops moving. At this time, the distance between the two is the smallest.

[0063] In this embodiment, the rigid limit is formed by the platform stage of the main pressure body 1 and the end face of the oil seal receiving ring 2, eliminating the need for additional complex limit components, simplifying the tooling structure and reducing the difficulty of processing and assembly. At the same time, the fit between the platform stage and the end face provides a large contact area and a smooth limiting process, which can avoid component damage caused by local stress concentration and extend the service life of the tooling.

[0064] In one possible implementation, the base 6 is provided with a positioning structure for engaging with the stop or locating pin of the bearing cover 8.

[0065] Optionally, the base 6 is provided with a positioning structure for engaging with the stop of the bearing cover 8. The positioning structure is an annular boss machined on the top surface of the base 6. The outer diameter of the annular boss is adapted to the inner diameter of the stop of the bearing cover 8. The bearing cover 8 can be fitted onto the annular boss through the stop to achieve radial positioning.

[0066] Alternatively, the positioning structure may consist of two symmetrically arranged positioning pins on the top surface of the base 6. The positions of the positioning pins correspond to the positioning holes on the bearing cover 8, and the bearing cover 8 achieves precise positioning through the cooperation of the positioning holes and the positioning pins.

[0067] In this embodiment, the bearing cover 8 can be stably fixed on the base 6 by means of a positioning structure with a stop fit or a positioning pin fit, ensuring that the oil seal mounting hole of the bearing cover 8 is coaxial with the pressure head assembly, and avoiding the bearing cover 8 from shifting during the pressing process, which would cause the oil seal to be cut off. At the same time, the design of the positioning structure makes the installation and disassembly of the bearing cover 8 convenient, without the need for additional clamping devices, thus improving assembly efficiency.

[0068] In one possible implementation, the base 6, the main pressure body 1, and the oil seal receiving ring 2 are made of metal.

[0069] The base 6, main pressure body 1, and oil seal receiving ring 2 are made of metal materials. The base 6 is made of No. 45 steel and is heat-treated to improve its load-bearing capacity and wear resistance. The main pressure body 1 is made of 20CrMnTi steel and is carburized and quenched to enhance its surface wear resistance and impact resistance. The oil seal receiving ring 2 is made of Q235 steel and is galvanized to improve its rust prevention performance.

[0070] In this embodiment, different metal materials are selected and targeted heat treatment is carried out according to the functional requirements of each component, which can control costs while ensuring the performance of the tooling; the heat treatment of the base 6 enables it to stably bear the pressing force, the carburizing and quenching treatment of the main pressure body 1 enables it to withstand impact and friction for a long time, and the galvanizing treatment of the oil seal receiving ring 2 can prevent rust from affecting the oil seal installation accuracy, thus extending the service life of the tooling and reducing maintenance costs.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications to the technical solutions described in the foregoing embodiments, or equivalent substitutions for some or all of the technical features, do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A bearing cover oil seal press-fit fixture, characterized in that, include: The base (6), the pressure head assembly, the elastic reset mechanism and the oil seal positioning mechanism (7); The base (6) is used to install and position the bearing cover (8) to be pressed into place; The pressure head assembly includes a main pressure body (1) capable of relative axial movement and an oil seal receiving ring (2); The oil seal positioning mechanism (7) is disposed on the oil seal receiving ring (2) and is used to fix the oil seal before pressing. The main pressure body (1) and the oil seal receiving ring (2) are connected by a guide limiting mechanism, which restricts the main pressure body (1) and the oil seal receiving ring (2) to only generate relative displacement along the axial direction; The elastic reset mechanism acts between the main pressure body (1) and the oil seal receiving ring (2) to provide a reset elastic force that causes the two to move away from each other.

2. The bearing cover oil seal press-fit fixture according to claim 1, characterized in that, The guide limiting mechanism includes a guide member (4) disposed on the oil seal receiving ring (2) and a guide groove disposed on the main pressure body (1) and slidingly engaged with the guide member (4).

3. The bearing cover oil seal press-fit fixture according to claim 2, characterized in that, The guide (4) is a screw or a guide post.

4. The bearing cover oil seal press-fit fixture according to claim 1, characterized in that, The oil seal positioning mechanism (7) is an elastic clamping element (5) disposed on the inner wall of the oil seal receiving ring (2).

5. The bearing cover oil seal press-fit fixture according to claim 4, characterized in that, The elastic clamping element (5) is a spring plunger or an elastic steel ball.

6. The bearing cover oil seal press-fit fixture according to claim 1, characterized in that, The elastic reset mechanism is a helical spring sleeved on the guide limiting mechanism, or a plurality of elastic elements evenly distributed between the main pressure body (1) and the oil seal receiving ring (2).

7. The bearing cover oil seal press-fit fixture according to claim 1, characterized in that, A rigid limiting structure is provided between the main pressure body (1) and the oil seal receiving ring (2) to limit the minimum distance between them.

8. The bearing cover oil seal press-fit fixture according to claim 7, characterized in that, The rigid limiting structure is formed by the platform stage of the main pressure body (1) and the corresponding end face of the oil seal receiving ring (2).

9. The bearing cover oil seal press-fit fixture according to claim 1, characterized in that, The base (6) is provided with a positioning structure for engaging with the stop or positioning pin of the bearing cover (8).

10. The bearing cover oil seal press-fit fixture according to any one of claims 1-9, characterized in that, The base (6), main pressure body (1) and oil seal receiving ring (2) are made of metal materials.

Images