Oil seal disassembling device

Abstract

The utility model relates to the technical field of disassembly and assembly of diesel engine parts, in particular to an oil seal disassembly device. The oil seal disassembling device comprises a flange plate, a plurality of hook claws and a lead screw, the lead screw is in threaded connection with the flange plate and used for abutting against external equipment, the hook claws are arranged in the circumferential direction of the flange plate at intervals, each hook claw is slidably connected to the flange plate and can be close to or away from the circle center of the flange plate, and the hook claws are used for hooking the edge of a to-be-disassembled element. Compared with the prior art, the device has the advantages that the peripheral edge of the oil seal is hooked by the plurality of claws, so that the peripheral edge of the oil seal is stressed, the oil seal is separated from external equipment by rotating the lead screw, the integrity of the oil seal can be ensured, and a crankshaft and auxiliary parts are prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of diesel engine component disassembly and assembly technology, and in particular to an oil seal disassembly device. Background Technology

[0002] Oil seals are key components for achieving mechanical sealing. The mounting holes of oil seals and workpieces generally use an interference fit. In the existing technology, the removal of oil seals is generally achieved by using a claw assembly through the through hole in the middle of the oil seal, so that the disassembly hook abuts against the bottom end face of the oil seal and pulls the oil seal upward. Since the claw assembly extends into the equipment, it can easily cause damage to the oil seal and its accessories, affecting the normal use of the equipment.

[0003] Therefore, there is an urgent need for an oil seal disassembly device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide an oil seal disassembly device that can prevent the oil seal and its accessories from being damaged.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An oil seal disassembly device includes: a flange, a plurality of claws and a lead screw, wherein the lead screw is threadedly connected to the flange and is used to abut against an external device, the plurality of claws are spaced apart circumferentially along the flange, and each claw is slidably connected to the flange and can approach or move away from the center of the flange, the claws being used to hook the edge of the component to be disassembled.

[0007] As a preferred technical solution of the above-mentioned oil seal disassembly device, the hook includes a mounting plate, a connecting plate, and a latch. The mounting plate and the latch are located on both sides of the flange, and the connecting plate is connected between the mounting plate and the latch. The mounting plate is slidably engaged with the flange. The latch is used to hook the edge of the oil seal. The mounting plate is fan-shaped and can slide relative to the flange to have an initial position and a working position. When each mounting plate is in the initial position, any two adjacent mounting plates abut against each other along the circumferential direction of the flange, and the center of the mounting plate coincides with the center of the flange. When the mounting plate is in the working position, the center of the mounting plate and the center of the flange are spaced apart.

[0008] As a preferred technical solution of the above-mentioned oil seal disassembly device, the oil seal disassembly device further includes a plurality of driving components, wherein the plurality of driving components are arranged in a one-to-one correspondence with the plurality of hooks, and the driving components are used to drive the corresponding hooks to approach or move away from the center of the flange.

[0009] As a preferred technical solution of the above-mentioned oil seal disassembly device, the driving assembly includes a driving component and an elastic component. The axis of the driving component is perpendicular to the axis of the flange. The driving component is gapped through the connecting plate of the corresponding hook and the driving component is threadedly connected to the flange. The elastic component is connected between the flange and the connecting plate of the corresponding hook and the elastic component presses the connecting plate of the corresponding hook against the bolt head of the driving component.

[0010] As a preferred technical solution of the above-mentioned oil seal disassembly device, the oil seal disassembly device further includes a plurality of guide seats, each of which is correspondingly arranged with a plurality of hooks. The guide seats are fixedly installed on the flange. The mounting plate is provided with an elongated through hole. The guide seats are inserted into the elongated through hole and can slide relative to the mounting plate along the elongated through hole. The driving component is threadedly connected to the guide seats.

[0011] As a preferred technical solution of the above-mentioned oil seal disassembly device, the guide seat has a T-shaped cross section and can restrict the mounting plate of the corresponding hook from detaching from the flange.

[0012] As a preferred technical solution of the above-mentioned oil seal disassembly device, the oil seal disassembly device further includes a pad, one end of which is connected to one end of the lead screw, the other end of which can abut against the end face of the external device, and the diameter of the end face of the other end of the pad is larger than the diameter of the lead screw.

[0013] As a preferred embodiment of the above-mentioned oil seal disassembly device, the oil seal disassembly device further includes an elastic gasket, which is fixed to the end of the pad block away from the lead screw.

[0014] As a preferred embodiment of the above-mentioned oil seal disassembly device, the oil seal disassembly device further includes a handle, which is mounted on the lead screw and is used to drive the lead screw to rotate.

[0015] As a preferred technical solution of the above-mentioned oil seal disassembly device, the flange includes a body and a nut fixedly inserted through the body, the center line of the nut coincides with the center line of the body, and the lead screw is threadedly connected to the nut.

[0016] The beneficial effects of this utility model are:

[0017] This invention provides an oil seal disassembly device. The device includes a flange, several hooks, and a lead screw. The lead screw is threadedly connected to the flange and is used to abut against external equipment. The hooks are spaced apart circumferentially along the flange, and each hook is slidably connected to the flange and can approach or move away from the center of the flange. The hooks are used to hook the edge of the component to be disassembled. Compared to existing technologies, this device uses several hooks to hook the outer peripheral edge of the oil seal, causing the outer peripheral edge of the oil seal to be stressed. By rotating the lead screw, the oil seal is separated from the external equipment, ensuring the integrity of the oil seal and avoiding damage to the crankshaft and related parts. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model 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 the content of the embodiments of this utility model and these drawings without creative effort.

[0019] Figure 1 This is a first structural schematic diagram of the oil seal disassembly device provided in this embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of the oil seal disassembly device provided in this embodiment of the utility model;

[0021] Figure 3 This is a cross-sectional view of the oil seal disassembly device provided in this embodiment of the utility model;

[0022] Figure 4 yes Figure 3 A magnified view of part A in the image.

[0023] In the picture:

[0024] 1. Flange; 2. Hook; 21. Mounting plate; 211. Long through hole; 22. Connecting plate; 23. Hook; 3. Lead screw; 4. Drive component; 5. Guide seat; 6. Elastic component; 7. Pad; 8. Elastic gasket; 9. Handle; 10. Nut. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical 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 utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly 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 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 directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] like Figures 1 to 4 As shown, this utility model provides an oil seal disassembly device. The oil seal disassembly device includes: a flange 1, several hooks 2, and a lead screw 3. The lead screw 3 is threadedly connected to the flange 1 and is used to abut against external equipment. The several hooks 2 are spaced apart circumferentially along the flange 1, and each hook 2 is slidably connected to the flange 1 and can approach or move away from the center of the flange 1. The hooks 2 are used to hook the edge of the component to be disassembled. Compared with the prior art, this device uses several hooks 2 to hook the outer peripheral edge of the oil seal, causing the outer peripheral edge of the oil seal to be stressed. By rotating the lead screw 3, the oil seal is separated from the external equipment, ensuring the integrity of the oil seal and avoiding damage to the crankshaft and related parts.

[0030] Optionally, the hook 2 includes a mounting plate 21, a connecting plate 22, and a latch 23. The mounting plate 21 and the latch 23 are located on both sides of the flange 1, respectively. The connecting plate 22 is connected between the mounting plate 21 and the latch 23. The mounting plate 21 is slidably fitted with the flange 1. The latch 23 is used to hook the edge of the oil seal. The mounting plate 21 is fan-shaped and can slide relative to the flange 1 to have an initial position and a working position. When each mounting plate 21 is in the initial position, any two adjacent mounting plates 21 abut against each other along the circumferential direction of the flange 1, and the center of the mounting plate 21 coincides with the center of the flange 1. When the mounting plate 21 is in the working position, the center of the mounting plate 21 and the center of the flange 1 are spaced apart. Specifically, in this embodiment, the oil seal disassembly device is equipped with four hooks 2. The mounting plate 21 is fan-shaped, and the connecting plate 22 and the hooks 23 are both arc-shaped. The four hooks 2 can form a circumference, and the center of the circumference coincides with the center of the flange 1. The hooks 23 protrude inward from the circumference. The mounting plate 21 and the connecting plate 22 are perpendicularly connected, which can press the hooks 23 into the outer edge of the oil seal housing, so that the hooks 23 can extend into the engine and hook the outer peripheral edge of the oil seal. The lead screw 3 abuts against the crankshaft end face, so that the oil seal can be pulled out smoothly. Of course, in some other embodiments, the number of hooks 2 is determined according to the actual situation, which will not be elaborated here.

[0031] Optionally, the oil seal disassembly device also includes several drive components, which are arranged one-to-one with several hooks 2, and the drive components are used to drive the corresponding hooks 2 to approach or move away from the center of the flange 1.

[0032] Furthermore, the drive assembly includes a drive component 4 and an elastic component 6. The axis of the drive component 4 is perpendicular to the axis of the flange 1. The drive component 4 is spaced through the connecting plate 22 of the corresponding hook 2 and is threadedly connected to the flange 1. The elastic component 6 is connected between the flange 1 and the connecting plate 22 of the corresponding hook 2, and the elastic component 6 presses the connecting plate 22 of the corresponding hook 2 against the bolt head of the drive component 4. Specifically, the drive component 4 is a bolt. By tightening the bolt, the connecting plate 22 can be pushed inward to allow the hook 23 to hook the oil seal. When the drive component 4 is loosened, it moves outward. At this time, the connecting plate 22 moves outward under the action of the elastic component 6, thereby separating the oil seal from the hook 23 and removing the oil seal from the oil seal removal device. Furthermore, the elastic component 6 is a compression spring.

[0033] Optionally, the oil seal disassembly device further includes several guide seats 5, each corresponding to a number of hooks 2. The guide seats 5 are fixedly installed on the flange 1. The mounting plate 21 has an elongated through hole 211. The guide seats 5 are inserted into the elongated through hole 211 and can slide relative to the mounting plate 21 along the elongated through hole 211. The driving component 4 is threadedly connected to the guide seats 5. Specifically, the guide seats 5 are close to the center of the flange 1 and extend radially along the flange 1. When the mounting plate 21 moves along the extending direction of the guide seats 5, it can ensure that the mounting plate 21 moves closer to or further away from the center of the flange 1, preventing displacement.

[0034] Furthermore, the guide seat 5 has a T-shaped cross-section, which can restrict the mounting plate 21 of the corresponding hook 2 from detaching from the flange 1. Specifically, bolts pass through the guide seat 5 and are threadedly connected to the flange 1, so that the guide seat 5 is fixed to the flange 1, and the T-shaped end face of the guide seat 5 can apply downward pressure to the mounting plate 21 to prevent the mounting plate 21 from tilting up and ensure that the mounting plate 21 moves along the length direction of the guide seat 5.

[0035] Optionally, the oil seal removal device also includes a pad 7, one end of which is connected to one end of the lead screw 3, and the other end of which abuts against the end face of the crankshaft. The diameter of the end face of the other end of the pad 7 is larger than the diameter of the lead screw 3. Specifically, the pad 7 has a T-shaped cross-section and is fixed to the head of the lead screw 3 by bolts, which increases the contact area between the lead screw 3 and the crankshaft and protects the appearance of the crankshaft.

[0036] Optionally, the oil seal disassembly device also includes an elastic gasket 8, which is fixed to the end of the pad 7 away from the lead screw 3, and can prevent the pad 7 from directly contacting the crankshaft and prevent the crankshaft from being damaged.

[0037] Optionally, the oil seal disassembly device also includes a handle 9, which is mounted on the lead screw 3 and is used to drive the lead screw 3 to rotate, making it convenient for the operator to rotate the lead screw 3 and also convenient to carry the oil seal disassembly device.

[0038] Optionally, the flange 1 includes a body and a nut 10 fixedly inserted through the body. The centerline of the nut 10 coincides with the centerline of the body, and the lead screw 3 is threadedly connected to the nut 10. Specifically, the nut 10 has a T-shaped cross-section, and its height is greater than that of the flange 1. The lead screw 3 inserted through the nut 10 increases the length of the threaded connection, prevents the lead screw 3 from tilting, and improves the stability of the oil seal disassembly device. The other end of the nut 10 is located within the circumference and is fixed to the flange 1 by bolts, which increases the stress area of ​​the flange 1 and improves its stability.

[0039] The usage process of the oil seal disassembly device provided by this utility model is as follows:

[0040] S1. Align the oil seal disassembly device with the crankshaft oil seal mounting hole, insert the connecting plate 22 into the mounting hole, and make the hook 23 surround the outside of the oil seal.

[0041] S2. Adjust the driving components 4 around the oil seal disassembly device so that the driving components 4 push the connecting plate 22 toward the center of the flange 1, thereby causing the hook 23 to clamp the oil seal.

[0042] S3. Rotate handle 9 to make pad 7 abut against crankshaft, and continue to slowly rotate handle 9 to unscrew the oil seal at a uniform speed;

[0043] S4. Adjust the driving components 4 around the oil seal disassembly device so that the driving components 4 are away from the center of the flange 1. Under the action of the elastic component 6, the connecting plate 22 moves away from the center of the flange 1, so that the hook 23 separates from the oil seal, and the oil seal can be removed from the oil seal disassembly device.

[0044] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. An oil seal disassembly device, characterized in that, include: A flange (1), a plurality of claws (2) and a lead screw (3), the lead screw (3) being threadedly connected to the flange (1) and used to abut against external equipment, the plurality of claws (2) being spaced apart circumferentially along the flange (1), and each claw (2) being slidably connected to the flange (1) and being able to approach or move away from the center of the flange (1), the claws (2) being used to hook the edge of the component to be disassembled.

2. The oil seal disassembly device according to claim 1, characterized in that, The hook (2) includes a mounting plate (21), a connecting plate (22), and a hook (23). The mounting plate (21) and the hook (23) are located on both sides of the flange (1). The connecting plate (22) is connected between the mounting plate (21) and the hook (23). The mounting plate (21) is slidably engaged with the flange (1). The hook (23) is used to hook the edge of the oil seal. The mounting plate (21) is fan-shaped. The mounting plate (21) can slide relative to the flange (1) and has an initial position and a working position. When each mounting plate (21) is in the initial position, any two adjacent mounting plates (21) abut against each other along the circumference of the flange (1), and the center of the mounting plate (21) coincides with the center of the flange (1). When the mounting plate (21) is in the working position, the center of the mounting plate (21) and the center of the flange (1) are spaced apart.

3. The oil seal disassembly device according to claim 2, characterized in that, The oil seal disassembly device further includes several driving components, each of which is arranged in a one-to-one correspondence with a number of hooks (2), and the driving components are used to drive the corresponding hooks (2) to approach or move away from the center of the flange (1).

4. The oil seal disassembly device according to claim 2, characterized in that, The drive assembly includes a drive member (4) and an elastic member (6). The axis of the drive member (4) is perpendicular to the axis of the flange (1). The drive member (4) is passed through the connecting plate (22) of the corresponding hook (2) with a gap. The drive member (4) is threadedly connected to the flange (1). The elastic member (6) is connected between the flange (1) and the connecting plate (22) of the corresponding hook (2). The elastic member (6) presses the connecting plate (22) of the corresponding hook (2) against the bolt head of the drive member (4).

5. The oil seal disassembly device according to claim 4, characterized in that, The oil seal disassembly device also includes several guide seats (5), and several guide seats (5) are arranged in a one-to-one correspondence with several hooks (2). The guide seats (5) are fixedly installed on the flange (1). The mounting plate (21) is provided with an elongated through hole (211). The guide seat (5) is inserted into the elongated through hole (211) and can slide relative to the mounting plate (21) along the elongated through hole (211). The driving member (4) is threadedly connected to the guide seat (5).

6. The oil seal disassembly device according to claim 5, characterized in that, The guide seat (5) has a T-shaped cross section and can restrict the mounting plate (21) of the corresponding hook (2) from detaching from the flange (1).

7. The oil seal disassembly device according to claim 1, characterized in that, The oil seal disassembly device also includes a pad (7), one end of which is connected to one end of the lead screw (3), and the other end of which can abut against the end face of the external device, and the diameter of the end face of the other end of the pad (7) is larger than the diameter of the lead screw (3).

8. The oil seal disassembly device according to claim 7, characterized in that, The oil seal disassembly device also includes an elastic gasket (8), which is fixed to the end of the pad (7) away from the lead screw (3).

9. An oil seal disassembly device according to any one of claims 1-8, characterized in that, The oil seal disassembly device also includes a handle (9), which is mounted on the lead screw (3) and is used to drive the lead screw (3) to rotate.

10. An oil seal disassembly device according to any one of claims 1-8, characterized in that, The flange (1) includes a body and a nut (10) fixedly inserted through the body. The center line of the nut (10) coincides with the center line of the body. The lead screw (3) is threadedly connected to the nut (10).

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