Oil seal press fitting device

Abstract

The utility model relates to the technical field of oil seals, in particular to an oil seal press-fitting device which comprises a guide shaft, an extrusion mechanism and a bearing mechanism, the extrusion mechanism comprises a pressing plate and a first driving part which are in transmission connection, the pressing plate is in sliding connection with the guide shaft, the pressing plate is used for extruding an oil seal part, and the bearing mechanism is used for bearing the oil seal part. The first driving piece can drive the pressing plate to slide in the axial direction of the guiding shaft, and the pressing plate can accurately press the oil sealing piece into a mounting hole of a piece to be subjected to oil sealing. The bearing mechanism comprises a seat body, a guide disc, a plurality of clamping pieces and a second driving piece, the clamping pieces are used for being connected with a to-be-oil-sealed piece in a clamped mode, the clamping pieces are arranged on the guide disc in a sliding mode, the clamping pieces are connected with the seat body in a sliding mode, the guide disc is connected with the guide shaft, the guide disc is rotatably connected with the seat body, and the second driving piece is in transmission connection with the guide disc. The second driving piece is used for driving the guide disc to rotate, the guide disc can drive the multiple clamping pieces to slide in the radial direction of the guide disc, and to-be-oil-sealed pieces of different sizes can be clamped and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of oil seals, in particular to an oil seal pressing device. Background Art

[0002] In the process of motor manufacturing, especially in those occasions with high requirements for protection level or those that need to connect to a speed reducer, the shaft extension part is generally particularly concerned. In order to ensure the sealing performance of the shaft extension part, the installation of the oil seal becomes particularly important. However, due to the existence of the shaft extension, problems such as inclined installation, incomplete installation, and even damage to the oil seal often occur during the installation of the oil seal, greatly affecting the sealing effect of the oil seal, and further affecting the overall sealing performance and operation stability of the engine.

[0003] In the related art, when operating the motor oil seal, generally, the operator needs to manually place the oil seal on the motor end cover, and then press the oil seal into the oil seal groove on the motor end cover by hammering. The installation process is cumbersome, the oil seal is easily deformed when being inserted, and there is an easy position deviation between the oil seal and the end cover. When using a pressing tool such as a sleeve, a sleeve with the same size as the oil seal needs to be selected for pushing and assembling. Different sizes of oil seal parts require different sizes of sleeves, and it is difficult for one sleeve to be applicable to the pressing operations of various sizes of oil seal parts. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an oil seal pressing device to solve the problems in the related art that it is difficult for the oil seal pressing device to be applicable to oil seals of different sizes of motor end covers, and the oil seal parts are easily damaged due to inclined installation or incomplete installation.

[0005] To achieve the above object, the utility model adopts the following technical solutions:

[0006] The utility model provides an oil seal pressing device, including:

[0007] A guiding shaft;

[0008] An extrusion mechanism, including a pressing plate and a first driving member that are drivingly connected. The pressing plate is slidably connected to the guiding shaft. The pressing plate is used to extrude the oil seal part, and the first driving member can drive the pressing plate to slide axially along the guiding shaft;

[0009] A supporting mechanism, including a seat body, a guiding disk, a plurality of clamping members, and a second driving member. The plurality of clamping members are used to be clamped with the part to be oil-sealed. The clamping members are slidably arranged on the guiding disk, and the clamping members are slidably connected to the seat body. The guiding disk is connected to the guiding shaft, and the guiding disk is rotatably connected to the seat body. The second driving member is drivingly connected to the guiding disk. The second driving member is used to drive the guiding disk to rotate, and the guiding disk can drive the plurality of clamping members to slide radially along the guiding disk.

[0010] In one embodiment, a recessed portion is provided on the guiding disc, the recessed portion is arranged in a spiral shape, a protruding portion is provided at the bottom of the clamping member, and the recessed portion can be slidably connected to the protruding portion.

[0011] In one embodiment, the supporting mechanism further includes:

[0012] A ratchet wheel, which is arranged between the second driving member and the guiding disc, is fixedly connected to the guiding disc, is rotatably connected to the seat body, and is in transmission connection with the second driving member;

[0013] A locking assembly, which is arranged between the ratchet wheel and the seat body, and is used for locking between the ratchet wheel and the seat body.

[0014] In one embodiment, the locking assembly includes:

[0015] A pawl, one end of which is rotatably connected to the seat body and the other end of which can be engaged with the ratchet wheel;

[0016] An elastic member, which is arranged between the pawl and the seat body, and is configured to be able to apply a force to the pawl so that the pawl is engaged with the ratchet wheel.

[0017] In one embodiment, the locking assembly further includes a switch member, which is rotatably arranged on the seat body and is configured to be able to apply a force to the pawl;

[0018] When the switch member drives the pawl to rotate, the force applied by the switch member to the pawl can overcome the force applied by the elastic member to the pawl so that the pawl can be separated from the ratchet wheel.

[0019] In one embodiment, the switch member includes:

[0020] A cam, which has a tip and a round end, the round end of the cam is rotatably connected to the seat body, and the tip of the cam is used for abutting against the pawl;

[0021] A knob, which is connected to the cam, and the knob can drive the cam to rotate.

[0022] In one embodiment, two sets of the locking assemblies are provided, the two sets of the locking assemblies are symmetrically arranged with respect to the ratchet wheel, and the engaging directions of the pawls in the two sets of the locking assemblies with respect to the ratchet wheel are opposite.

[0023] In one embodiment, the first driving member includes:

[0024] An extrusion piece, wherein the extrusion piece is sleeved on the guide shaft;

[0025] A holding piece, wherein the holding piece is threadedly connected to the guide shaft, the holding piece is rotationally connected to the extrusion piece, and the rotation of the holding piece along the guide shaft can drive the extrusion piece to push the pressure plate to slide.

[0026] In one of the embodiments, a limiting portion is provided on the surface of the pressure plate, and the limiting portion is used to be detachably connected to the oil seal.

[0027] In one embodiment, the surrounding axes of the plurality of clamping parts, the guide disk, the pressure plate and the guide shaft are coaxially arranged.

[0028] The beneficial effects of the utility model are:

[0029] The utility model provides an oil seal pressing device, which includes a guide shaft, an extrusion mechanism and a supporting mechanism. The extrusion mechanism includes a pressure plate and a first driving member that are connected to each other in a transmission manner. The pressure plate is slidably connected to the guide shaft. The supporting mechanism includes a seat body, a guide disc, a plurality of clamping members and a second driving member. The guide disc is connected to the guide shaft. The guide disc is rotatably arranged in the seat body. A plurality of clamping members can be slidably arranged on the guide disc and arranged along the circumference of the guide disc. The second driving member can drive the guide disc to rotate. When the oil is sealed, the second driving member drives the guide disc to rotate. The rotation of the guide disc can give a plurality of clamping members a radial force. Each clamping member is arranged to extend radially along the guide disc. The clamping member is slidably connected to the seat body so that the clamping member slides only radially along the guide disc. The plurality of clamping members can move to different radial positions on the guide disc, so as to clamp and fix the oil-sealed parts of different sizes and stably support them, thereby reducing the displacement and shaking of the oil-sealed parts. The extrusion mechanism is connected to the supporting mechanism through the guide shaft, and the oil seal component to be oil-sealed and the oil seal component are between the supporting mechanism and the extrusion mechanism, so that the extrusion mechanism and the supporting mechanism press the oil seal component to be oil-sealed and the oil seal component along the axial direction of the guide shaft. The first driving member can drive the pressing plate to slide along the axial direction of the guide shaft, and the sliding of the pressing plate pushes the oil seal component to slide along the axial direction of the guide shaft, so that the pressing plate accurately presses the oil seal component into the installation hole of the oil seal component to be oil-sealed, and the installation operation is convenient and easier to press into place, reducing the tilting and installation damage of the oil seal component. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the installation structure of the oil seal pressing device, the oil seal component and the component to be oil sealed in the embodiment of the utility model Figure 1 ;

[0031] Figure 2 Schematic diagram of the installation structure of the oil seal pressing device, the oil seal component and the component to be oil sealed in the embodiment of the utility model Figure 2 ;

[0032] Figure 3 This is a cross-sectional view of the oil seal pressing device in the embodiment of the present utility model when the oil seal is not completed;

[0033] Figure 4 This is a cross-sectional view of the oil seal pressing device in the embodiment of the present utility model when the oil seal is completed;

[0034] Figure 5 This is a schematic diagram of the overall structure of the oil seal pressing device in the embodiment of the present utility model;

[0035] Figure 6 This is a schematic diagram of the position of the guide disc in the embodiment of the present utility model;

[0036] Figure 7 This is a schematic diagram of the structure of the clamping member in the embodiment of the present utility model;

[0037] Figure 8 This is a schematic diagram of the position of the supporting mechanism in the embodiment of the present utility model;

[0038] Figure 9 This is a schematic diagram of the structure of the supporting mechanism in the embodiment of the present utility model;

[0039] Figure 10 This is a schematic diagram of the position of the two switch members in the embodiment of the present utility model;

[0040] Figure 11 This is a schematic diagram of the positional relationship between the locking assembly and the ratchet in the embodiment of the present utility model;

[0041] Figure 12 This is a schematic diagram of the structure of the locking assembly in the embodiment of the present utility model;

[0042] Figure 13 This is a schematic diagram of the position of the limiting portion in the embodiment of the present utility model.

[0043] In the figure:

[0044] 1. Guide shaft;

[0045] 2. Extrusion mechanism;

[0046] 21. Pressing plate; 211. Limiting portion;

[0047] 22. First driving member; 221. Extrusion member; 222. Holding member; 2221. Rotating block; 2222. Rotating rod;

[0048] 3. Supporting mechanism;

[0049] 31. Base body; 311. First half shell; 312. Second half shell;

[0050] 32. Guide disc; 321. Recessed portion;

[0051] 33. Clamping part; 331. Protrusion; 332. Claw; 333. Locking block; 34. Second driving part; 35. Ratchet wheel;

[0052] 36. Locking assembly; 361. Pawl; 362. Elastic part; 363. Switch part; 3631. Cam; 3632. Knob;

[0053] 4. Oil seal part; 5. Part to be oil sealed. Detailed implementation manners

[0054] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. In addition, it should be noted that for the convenience of description, only parts related to the present utility model are shown in the accompanying drawings, rather than all structures.

[0055] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to" and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0056] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include that the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "above the top" and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below", "below the bottom" and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0057] In the description of this embodiment, the orientation or positional relationship terms such as "above", "below", "right", etc. are based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0058] Such as Figures 1 to 4As shown, the embodiment of the utility model provides an oil seal press-fitting device, which includes a guide shaft 1, a pressing mechanism 2 and a supporting mechanism 3. The motor end cover waiting oil seal 5 and the oil seal 4 can be arranged between the pressing mechanism 2 and the supporting mechanism 3 for press-fitting operation. The pressing mechanism 2 includes a pressing plate 21 and a first driving member 22 which are connected to each other in a transmission manner. The pressing plate 21 is slidably connected to the guide shaft 1. For example, the pressing plate 21 can be sleeved on the guide shaft 1. The pressing plate 21 is used to press the oil seal 4. The first driving member 22 can drive the pressing plate 21 to slide along the axial direction of the guide shaft 1. The sliding of the pressing plate 21 can push the oil seal 4 to slide along the axial direction of the guide shaft 1.

[0059] The supporting mechanism 3 includes a seat body 31, a guide plate 32, a plurality of clamping members 33 and a second driving member 34. The plurality of clamping members 33 are used to clamp with the oil-sealed member 5 so as to support and limit the oil-sealed member 5. The plurality of clamping members 33 can be slidably arranged on the guide plate 32, and the plurality of clamping members 33 are arranged along the circumference of the guide plate 32. The clamping members 33 are slidably connected with the seat body 31, and the seat body 31 can support the oil-sealed member 5 and guide the clamping members 33 for sliding. The guide plate 32 is connected with the guide shaft 1, and the guide plate 32 is arranged in the inner cavity of the seat body 31, and the guide plate 32 is rotatably connected with the seat body 31. For example, a bearing can be installed between the guide plate 32 and the seat body 31, and the rotation is flexible and convenient. The second driving member 34 is in transmission connection with the guide plate 32, and is used to drive the guide plate 32 to rotate. The guide plate 32 is configured to exert force on the multiple clamping members 33, so that the rotation of the guide plate 32 can drive the multiple clamping members 33 to slide radially along the guide plate 32 respectively.

[0060] With such arrangement, when oil sealing is performed, the second driving member 34 drives the guide plate 32 to rotate. The rotation of the guide plate 32 can give radial force to the multiple clamping members 33. Each clamping member 33 is arranged to extend radially along the guide plate 32. The clamping member 33 is slidably connected to the seat body 31 so that the clamping member 33 only slides radially along the guide plate 32. The multiple clamping members 33 can be moved to different radial positions on the guide plate 32, so as to clamp and fix the oil-sealed parts 5 of different sizes and stably support them, thereby reducing the displacement and shaking of the oil-sealed parts 5.

[0061] The extrusion mechanism 2 is connected to the supporting mechanism 3 through the guiding shaft 1. The oil seal parts 5 and 4 are arranged between the supporting mechanism 3 and the extrusion mechanism 2, so that the extrusion mechanism 2 and the supporting mechanism 3 axially press-fit the oil seal part 5 and the oil seal part 4 along the guiding shaft 1. The first driving part 22 can drive the pressing plate 21 to slide axially along the guiding shaft 1. The sliding of the pressing plate 21 pushes the oil seal part 4 to slide axially along the guiding shaft 1, so that the pressing plate 21 accurately presses the oil seal part 4 into the mounting hole of the oil seal part 5 to be sealed. The installation operation is convenient and it is easier to press-fit in place, reducing the inclination and installation damage of the oil seal part 4, and solving the problem that the oil seal pressing device in the related technology is difficult to be applicable to oil seals of motor end covers with different sizes, and the oil seal is prone to damage due to installation inclination or improper installation.

[0062] The oil seal pressing device of this embodiment can be used for oil sealing the end cover of a motor and is applicable to various models of motors, reducing the need to customize an oil seal assembly tooling for each model of motor separately. Most of the components of the oil seal pressing device are standard parts. The pressing plate 21 can be of a flat plate structure and can be applicable to the pressing of oil seal parts 4 with various sizes. When the size of the oil seal part 4 exceeds the size of the pressing plate 21, only the pressing plate 21 needs to be replaced to make the oil seal pressing device meet the use requirements, reducing the use obstacles.

[0063] Among them, the first driving part 22 and the second driving part 34 can be, but are not limited to, motors, cylinders or hydraulic cylinders. Or, the first driving part 22 and the second driving part 34 can also be manual driving parts such as rods or handwheels. Through the manual driving method, the operation process of oil seal assembly is simplified. It not only reduces the demand for electricity, but also reduces the potential losses caused by improper operation of the staff. The manual driving makes the use of the tooling more flexible and convenient. The first driving part 22 and the second driving part 34 can drive the pressing plate 21 and the guiding disk 32 to move. The seat body 31 can be designed as a split type, which is convenient for the installation of the guiding disk 32, the clamping part 33 and the second driving part 34. For example, the seat body 31 can include a first half shell 311 and a second half shell 312. The first half shell 311 and the second half shell 312 can be connected by a detachable connection form such as thread or clamping. The guiding disk 32 can be rotatably connected to the inner cavity of the first half shell 311 through a deep groove ball bearing. The ratchet 35 can be rotatably connected to the inner cavity of the second half shell 312 through a deep groove ball bearing. The guiding disk 32 and the guiding shaft 1 can be detachably connected, which is convenient for the installation and disassembly of the oil seal part 4 and the oil seal part 5 to be sealed. For example, a locking nut is arranged on the guiding disk 32. The locking nut can be located at the middle position of the guiding disk 32 and is threadedly connected to the guiding shaft 1 to connect and fix the guiding disk 32 and the guiding shaft 1.

[0064] Such as Figures 3 to 7As shown, in some embodiments, the guide plate 32 is provided with recessed portions 321 , and the recessed portions 321 are arranged in a spiral shape. The bottom of the clamping piece 33 is provided with a protrusion 331, and the recessed portion 321 can be slidably connected with the protrusion 331. Under the driving action of the first driving member 22, the guide plate 32 can rotate relative to the seat body 31. The rotation of the guide plate 32 drives the protrusion 331 and the recessed portion 321 to slide relative to each other. Because the recessed portion 321 is arranged in a spiral line shape and is non-circular, when the protrusion 331 and the recessed portion 321 slide relative to each other, the protrusion 331 and the clamping piece 33 will form a certain radial displacement, and the clamping piece 33 can slide relative to the seat body 31. Multiple clamping pieces 33 are slidably connected to the guide plate 32. The forward or reverse rotation of the guide plate 32 can drive the multiple clamping pieces 33 to approach or move away from each other along the radial direction of the guide plate 32, thereby adjusting the radial positions of the multiple clamping pieces 33 on the guide plate 32, which is convenient for clamping and fixing the oil-sealed parts 5 of different sizes, and is flexible and convenient to use.

[0065] In this embodiment, the clamping member 33 includes a clamping block 333 and a clamping claw 332. The clamping claw 332 is slidably connected to the seat body 31. The protrusion 331 is disposed at the bottom of the clamping claw 332. The clamping block 333 is detachably connected to the top of the clamping claw 332. For example, the clamping block 333 can be connected to the clamping claw 332 by a countersunk screw. The clamping block 333 can extend into the mounting hole of the component 5 to be oil-sealed. The clamping blocks 333 of multiple clamping members 33 are all in contact with the inner wall of the mounting hole of the component 5 to be oil-sealed to be fixed to the component 5 to be oil-sealed. The component 5 to be oil-sealed can be supported by the seat body 31, or can be supported by multiple clamping claws 332. Four clamping members 33 can be provided, and the four clamping members 33 are arranged along the circumference of the guide plate 32. In order to improve the sliding flexibility between the recessed portion 321 and the protrusion 331, grease can be added between the recessed portion 321 and the protrusion 331 for lubrication.

[0066] like Figures 8 to 11 As shown, in some embodiments, the supporting mechanism 3 further includes a ratchet 35 and a locking assembly 36. The ratchet 35 is disposed between the second driving member 34 and the guide plate 32. The ratchet 35 is fixedly connected to the guide plate 32, and the ratchet 35 is rotatably connected to the seat body 31. For example, an extension tube may be disposed at the end of the ratchet 35, and the extension tube is disposed along the axial direction of the ratchet 35. A bracket may be disposed in the seat body 31, and the extension tube is passed through the bracket and is rotatably connected to the bracket. For example, a bearing may be disposed between the extension tube and the bracket to improve the rotation flexibility of the ratchet 35. The ratchet 35 is transmission-connected to the second driving member 34, and the locking assembly 36 is disposed between the ratchet 35 and the seat body 31. The locking assembly 36 is used to lock the ratchet 35 and the seat body 31. The locking assembly 36 may be, but is not limited to, a retractable structure such as a latch or a cylinder or a hydraulic cylinder, and can switch the motion state of the ratchet 35.

[0067] With such a setting, the locking assembly 36 has a locked state and an open state. When the locking assembly 36 is in the open state, the ratchet wheel 35 and the seat body 31 can rotate freely. When the second driving member 34 drives the ratchet wheel 35 to rotate, it can drive the guide disc 32 to rotate, and further drive a plurality of clamping members 33 to slide, so as to adjust the radial position of the clamping members 33 to match the size of the component to be oil-sealed 5. After the clamping members 33 are adjusted, the locking assembly 36 can be adjusted to the locked state, the positions of the ratchet wheel 35 and the seat body 31 are relatively fixed, the positions of the clamping members 33 on the guide disc 32 are fixed, and the clamping members 33 can be firmly connected to the component to be oil-sealed 5.

[0068] As Figures 10 to 12 shown, in some embodiments, the locking assembly 36 includes a pawl 361 and an elastic member 362. One end of the pawl 361 is rotatably connected to the seat body 31, and the other end can be engaged with the ratchet wheel 35. The elastic member 362 is arranged between the pawl 361 and the seat body 31, and the elastic member 362 is configured to be able to apply a force to the pawl 361 so that the pawl 361 is engaged with the ratchet wheel 35, and the ratchet wheel 35 can only rotate in one direction. After the clamping member 33 moves into place on the guide disc 32, the pawl 361 abuts and locks the ratchet wheel 35 under the elastic force of the elastic member 362, so that the clamping member 33 can maintain a tightly abutting connection with the component to be oil-sealed 5, and reduce the situation that the reverse movement of the ratchet wheel 35 causes the clamping member 33 to be separated from the component to be oil-sealed 5.

[0069] In this embodiment, the elastic member 362 can be configured as a spring or a pipe fitting made of an elastic material. Optionally, the elastic member 362 can be selected as a conical scroll spring, which has a small volume, a large load and variable stiffness, and is convenient for installation and use in the limited space between the ratchet wheel 35 and the pawl 361.

[0070] As Figures 10 to 12 shown, in some embodiments, the locking assembly 36 includes a switch member 363. The switch member 363 is rotatably arranged on the seat body 31, and the switch member 363 is configured to be able to apply a force to the pawl 361. When the switch member 363 drives the pawl 361 to rotate, the force applied by the switch member 363 to the pawl 361 can overcome the force applied by the elastic member 362 to the pawl 361, so that the pawl 361 can be separated from the ratchet wheel 35, and the ratchet wheel 35 can rotate freely relative to the seat body 31. The switch member 363 can control whether the one-way rotation characteristic of the ratchet wheel 35 is effective.

[0071] For example, when the press-fitting is completed or when it is necessary to press-fit the small-sized component 5 to be oil-sealed, the switch member 363 can be rotated to drive the pawl 361 to overcome the acting force of the elastic member 362 and separate from the ratchet wheel 35. The ratchet wheel 35 can rotate freely, and the radial position of the clamping member 33 can be freely adjusted through the guide disk 32. When the clamping member 33 is adjusted to the required position, the switch member 363 can be rotated to remove the acting force on the pawl 361. The pawl 361 abuts against the ratchet wheel 35 again under the action of the elastic member 362, and the ratchet wheel 35 resumes its one-way rotation performance, facilitating the subsequent clamping adjustment operation of the clamping member 33 and the component 5 to be oil-sealed.

[0072] As Figures 10 to 12 shown, in some embodiments, the switch member 363 includes a cam 3631 and a knob 3632. The cam 3631 has a tip and a round end. The round end of the cam 3631 is rotatably connected to the seat body 31, and the tip of the cam 3631 is used to abut against the pawl 361. For example, the radial dimension of the tip of the cam 3631 can be greater than the radial gear of the round end of the cam 3631. When the tip of the cam 3631 abuts against the pawl 361, it can push the pawl 361 to separate from the ratchet wheel 35. The knob 3632 is connected to the cam 3631, and the knob 3632 can drive the cam 3631 to rotate. The knob 3632 can be arranged outside the seat body 31 for easy user holding and operation. Rotating the knob 3632 can drive the cam 3631 to rotate, thereby adjusting the abutment or separation of the pawl 361 and the ratchet wheel 35.

[0073] As Figures 10 to 12 shown, in some embodiments, two sets of locking assemblies 36 are provided. The two sets of locking assemblies 36 are symmetrically arranged with respect to the ratchet wheel 35. The pawls 361 in the two sets of locking assemblies 36 have opposite clamping directions for the ratchet wheel 35. The pawls 361 in the two sets of locking assemblies 36 can both be clamped with the ratchet wheel 35 to facilitate limiting the forward and reverse rotations of the ratchet wheel 35. For example, when the clamping member 33 needs to be fixed after moving into place. Or, the pawls 361 in the two sets of locking assemblies 36 can both be separated from the ratchet wheel 35 so that the ratchet wheel 35 can rotate freely in both forward and reverse directions. For example, when the position of the clamping member 33 needs to be adjusted. Or, the pawl 361 of one of the two sets of locking assemblies 36 can be clamped with the ratchet wheel 35, and the pawl 361 of the other set is separated from the ratchet wheel 35, so that the ratchet wheel 35 can rotate in one-way forward or reverse direction, facilitating the installation and fixation between the clamping member 33 and the component 5 to be oil-sealed.

[0074] In this embodiment, multiple identification information can be set on the seat body 31. The identification information can be, but is not limited to, patterns, characters, or groove-shaped or block-shaped structures. When the knob 3632 of the locking assembly 36 rotates to point to different identification information, it can correspond to different connection states of the pawl 361 and the ratchet wheel 35, facilitating user identification. As Figures 7 to 9As shown, the identification information can be configured as a triangular pattern and a linear pattern. The knob 3632 drives the cam 3631 to rotate, so that the tip of the cam 3631 pushes the pawl 361 to separate from the ratchet wheel 35. At this time, the knob 3632 can point to the triangular pattern. Alternatively, the knob 3632 can also drive the cam 3631 to continue rotating, so that the round end of the cam 3631 contacts the pawl 361, and the pawl 361 abuts against the ratchet wheel 35 under the action of the elastic member 362. At this time, the knob 3632 can point to the linear pattern.

[0075] As Figures 2 to 4 shown, in some embodiments, the first driving member 22 includes an extrusion member 221 and a holding member 222. The extrusion member 221 is sleeved on the guiding shaft 1 so as to axially slide along the guiding shaft 1. The holding member 222 is threadedly connected to the guiding shaft 1. The holding member 222 is rotationally connected to the extrusion member 221. By rotating along the guiding shaft 1 through the thread, the holding member 222 can drive the extrusion member 221 to push the pressing plate 21 to slide, so that the pressing plate 21 can press the oil seal member 4 into the mounting hole of the member to be oil-sealed 5. Guided by the guiding shaft 1 and the thread, the pressing process of the pressing plate 21 can be stable and the pressing step distance can be uniform. Moreover, the holding member 222 is rotationally connected to the extrusion member 221. During the rotation of the holding member 222 around the guiding shaft 1, the extrusion member 221 can not rotate with the holding member 222, and the extrusion member 221 can only slide along the guiding shaft 1 to press the pressing plate 21, reducing the rotational wear between the extrusion member 221 and the pressing plate 21. For example, a bearing can be installed between the holding member 222 and the extrusion member 221 to increase the rotational flexibility.

[0076] In this embodiment, the holding member 222 includes a rotating block 2221 and a rotating rod 2222 connected to each other. The rotating block 2221 is sleeved on the guiding shaft 1 and is threadedly connected to the guiding shaft 1. The rotating block 2221 is rotationally connected to the extrusion member 221. One or more rotating rods 2222 can be provided. The rotating rods 2222 are detachably connected to the rotating rod, and the rotating rods 2222 are arranged radially along the guiding shaft 1. Both the rotating block 2221 and the rotating rods 2222 can be held and rotated by the user. The size of the rotating rods 2222 can be much larger than the size of the rotating block 2221, making it more labor-saving for the user to hold and rotate.

[0077] As Figures 2 to 4 and Figure 13 shown, in some embodiments, a limiting portion 211 is provided on the surface of the pressing plate 21. The limiting portion 211 is used for detachably connecting with the oil seal member 4, and the connection can be but is not limited to plug connection, snap connection, magnetic attraction connection or bonding. The limiting portion 211 can be but is not limited to a groove-shaped or block-shaped structure. The limiting portion 211 can limit between the oil seal member 4 and the pressing plate 21, so that the oil seal member 4 can move stably with the pressing plate 21, and the mounting hole of the oil seal member 4 and the member to be oil-sealed 5 can be aligned, improving the accuracy of the press-fitting operation.

[0078] In this embodiment, the limiting portion 211 can be configured as a groove, and the contour of the groove is the same as that of the oil seal 4. The oil seal 4 can be partially inserted into the groove. The groove can be an annular groove, or the groove can also be a plurality of slot holes arranged in a matrix, as long as the oil seal 4 can be connected thereto. In addition, the radial dimension of the surface of the pressing plate 21 connected to the oil seal 4 can be equal to the radial dimension of the oil seal 4, so that the end of the pressing plate 21 can enter the mounting hole of the component 5 to be oil-sealed along with the oil seal 4, facilitating the installation of the oil seal 4 in place. For example, an annular groove can be circumferentially arranged on the side of the pressing plate 21, and the annular groove can avoid the component 5 to be oil-sealed, reducing positional interference.

[0079] In some embodiments, the axis around which the plurality of clamping members 33 are arranged, the guiding disk 32, the pressing plate 21, and the guiding shaft 1 are all coaxially arranged to improve the coaxiality of the mounting hole of the oil seal 4 and the component 5 to be oil-sealed, thereby improving the pressing accuracy of the oil seal 4 and the component 5 to be oil-sealed.

[0080] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. An oil seal pressing device, characterized in that, Comprising: Guide shaft (1); Extrusion mechanism (2), including a pressure plate (21) and a first driving member (22) that are drivingly connected. The pressure plate (21) is slidably connected to the guide shaft (1). The pressure plate (21) is used to extrude the oil seal member (4), and the first driving member (22) can drive the pressure plate (21) to slide axially along the guide shaft (1); Support mechanism (3), including a seat body (31), a guide disk (32), a plurality of clamping members (33) and a second driving member (34). The plurality of clamping members (33) are used to clamp the member to be oil-sealed (5). The clamping members (33) are slidably arranged on the guide disk (32), and the clamping members (33) are slidably connected to the seat body (31). The guide disk (32) is connected to the guide shaft (1), and the guide disk (32) is rotatably connected to the seat body (31). The second driving member (34) is drivingly connected to the guide disk (32). The second driving member (34) is used to drive the guide disk (32) to rotate, and the guide disk (32) can drive the plurality of clamping members (33) to slide radially along the guide disk (32).

2. The oil seal pressing device according to claim 1, wherein A recessed portion (321) is provided on the guide disk (32). The recessed portion (321) is arranged in a spiral shape. A protrusion (331) is provided at the bottom of the clamping member (33). The recessed portion (321) can be slidably connected to the protrusion (331).

3. The oil seal pressing device according to claim 1, characterized in that, The support mechanism (3) further includes: A ratchet wheel (35), which is arranged between the second driving member (34) and the guide disk (32). The ratchet wheel (35) is fixedly connected to the guide disk (32), and the ratchet wheel (35) is rotatably connected to the seat body (31). The ratchet wheel (35) is drivingly connected to the second driving member (34); A locking assembly (36), which is arranged between the ratchet wheel (35) and the seat body (31). The locking assembly (36) is used to lock between the ratchet wheel (35) and the seat body (31).

4. The oil seal pressing device according to claim 3, wherein, The locking assembly (36) includes: A pawl (361), one end of which is rotatably connected to the seat body (31), and the other end can be engaged with the ratchet wheel (35); An elastic member (362), which is arranged between the pawl (361) and the seat body (31). The elastic member (362) is configured to be able to apply a force to the pawl (361) so that the pawl (361) is engaged with the ratchet wheel (35).

5. The oil seal pressing device according to claim 4, characterized in that, The locking assembly (36) further includes a switch member (363), which is rotatably arranged on the seat body (31). The switch member (363) is configured to be able to apply a force to the pawl (361); When the switch member (363) drives the pawl (361) to rotate, the acting force exerted by the switch member (363) on the pawl (361) can overcome the acting force exerted by the elastic member (362) on the pawl (361), so that the pawl (361) can be separated from the ratchet wheel (35).

6. The oil seal pressing device according to claim 5, characterized in that, The switch member (363) includes: a cam (3631) having a tip and a round end, the round end of the cam (3631) is rotatably connected to the seat body (31), and the tip of the cam (3631) is used for abutting against the pawl (361); a knob (3632) connected to the cam (3631), and the knob (3632) can drive the cam (3631) to rotate.

7. The oil seal pressing device according to any one of claims 4-6, characterized in that, Two sets of the locking assemblies (36) are provided, and the two sets of the locking assemblies (36) are symmetrically arranged with respect to the ratchet wheel (35), and the pawls (361) in the two sets of the locking assemblies (36) are engaged with the ratchet wheel (35) in opposite directions.

8. The oil seal pressing device according to claim 1, characterized in that The first driving member (22) includes: a pressing member (221) sleeved on the guiding shaft (1); a holding member (222) threadedly connected to the guiding shaft (1), the holding member (222) is rotatably connected to the pressing member (221), and the holding member (222) can drive the pressing member (221) to push the pressing plate (21) to slide when rotating along the guiding shaft (1).

9. The oil seal pressing device according to claim 1, characterized in that, A limiting portion (211) is provided on the surface of the pressing plate (21), and the limiting portion (211) is used for detachably connecting with the oil seal member (4).

10. The oil seal pressing device according to claim 1, characterized in that, The circumferential axes of the plurality of clamping members (33), the guiding disc (32), the pressing plate (21) and the guiding shaft (1) are coaxially arranged.

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