Crankshaft oil seal maintenance tool

Abstract

The utility model relates to the technical field of maintenance tools, and discloses a crankshaft oil seal maintenance tool which comprises an arc block, a motor is fixedly connected to the inner wall of the arc block, a plurality of limiting blocks are fixedly connected to the outer portion of the arc block, sliding blocks are slidably connected to the inner walls of the limiting blocks, and connecting blocks are fixedly connected to the outer sides of the sliding blocks. The outer side of the arc block is rotationally connected with a fixing block, the outer side of the fixing block is fixedly connected with a rotating disc, and a plurality of internal grooves are formed in the outer portion of the rotating disc. According to the crankshaft oil seal clamping device, by rotating the rotating disc, the connecting block slides along the inner wall of the inner groove, then the connecting block drives the clamping plates to gather towards the center of the fixing block through the sliding block, the crankshaft oil seal is clamped, and the crankshaft oil seals of different sizes can be clamped through the device; and device faults and maintenance cost caused by mismatching of oil seal sizes can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of repair tools, in particular to a crankshaft oil seal repair tool. Background Art

[0002] The crankshaft oil seal is a mechanical component used to seal the crankshaft and engine, typically installed on the engine's crankcase cover. It prevents oil from leaking from the outside of the crankcase and prevents foreign matter and contaminants from entering the crankcase. Its primary functions include preventing oil leaks, protecting the crankshaft, reducing friction and wear, and maintaining internal pressure. The outer surface of the crankshaft oil seal fits tightly against the inner wall of the seal's mounting. If a crankshaft oil seal malfunctions, it requires repair tools.

[0003] However, the sizes of existing repair tools are mostly fixed. When crankshaft oil seals of different sizes need to be repaired, it is necessary to replace repair tools of different sizes and types, which increases the cost and time of repair and reduces the repair efficiency. For this reason, those skilled in the art have proposed a crankshaft oil seal repair tool to solve the above problem. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a crankshaft oil seal repair tool, which aims to improve the problem that the sizes of existing repair tools are mostly fixed. When crankshaft oil seals of different sizes need to be repaired, repair tools of different sizes and types need to be replaced, resulting in reduced repair efficiency.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a crankshaft oil seal maintenance tool, comprising an arc block, the inner wall of the arc block is fixedly connected to a motor, the outside of the arc block is fixedly connected to a plurality of limit blocks, the inner wall of the limit block is slidably connected to a slider, the outside of the slider is fixedly connected to a connecting block, the outside of the arc block is rotatably connected to a fixed block, the outside of the fixed block is fixedly connected to a turntable, the outside of the turntable is provided with a plurality of internal grooves, and a pushing assembly is installed on the outside of the arc block.

[0006] As a further description of the above technical solution:

[0007] The pushing assembly includes two sliding rods, one end of the sliding rod is fixedly connected to the outer side of the arc block, the outer side of the sliding rod is slidably connected to a mounting piece, the outer side of the mounting piece is provided with a connecting groove, the inner wall of the connecting groove is rotatably connected to a threaded rod, the outer side of the threaded rod is threadedly connected to a threaded block, the outer side of the threaded rod is fixedly connected to a worm gear, the outer side of the mounting piece is rotatably connected to a rocker, and one end of the rocker is fixedly connected to a worm.

[0008] As a further description of the above technical solution:

[0009] The exterior of the connection block is slidably connected to the inner wall of the inner groove, and the connection block is configured to be T-shaped.

[0010] As a further description of the above technical solution:

[0011] The side of the sliding block away from the limiting block is slidably connected to the outer side of the turntable, and the output end of the motor is fixedly connected to the outer side of the fixing block.

[0012] As a further description of the above technical solution:

[0013] The outer side of the connecting block is fixedly connected with a clamping plate, and the outer side of the clamping plate is fixedly connected with a rubber pad.

[0014] As a further description of the above technical solution:

[0015] The longitudinal section of the threaded block is square, and the outer portion of the threaded block is slidably connected to the inner wall of the connecting groove.

[0016] As a further description of the above technical solution:

[0017] The outer portion of the worm wheel is meshedly connected with the outer portion of the worm at the corresponding position, and the end of the worm away from the rocker is rotatably connected with the inner wall of the connecting groove.

[0018] As a further description of the above technical solution:

[0019] The outside of the sliding rod is fixedly connected with a support rod, and the outside of the rocker is provided with anti-slip grooves.

[0020] The utility model has the following beneficial effects:

[0021] In the utility model, by rotating the turntable, the connecting block slides along the inner wall of the internal groove, and then the connecting block drives the clamping plate to gather toward the center of the fixed block through the slider to clamp the crankshaft oil seal, so that the device can clamp crankshaft oil seals of different sizes, which can effectively reduce device failures and maintenance costs caused by oil seal size mismatch.

[0022] In the utility model, the worm gear is driven to rotate by the worm, which in turn drives the threaded rod to rotate at the same time. Under the action of the thread of the threaded rod, the threaded block drives the sliding rod to slide along the inner wall of the connecting groove, and then the sliding rod drives the clamping plate to move through the arc block, so that the clamping plate can be pushed by the device, saving time and cost and increasing economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a crankshaft oil seal repair tool proposed by the present utility model;

[0024] Figure 2This is a schematic diagram of the turntable structure of a crankshaft oil seal repair tool proposed by the present utility model;

[0025] Figure 3 shows Figure 1 Enlarged view of point A in the middle.

[0026] Legend:

[0027] 1. Mounting part; 2. Connecting groove; 3. Threaded rod; 4. Threaded block; 5. Sliding rod; 6. Support rod; 7. Motor; 8. Arc block; 9. Limit block; 10. Slider; 11. Turntable; 12. Connecting block; 13. Fixed block; 14. Internal groove; 15. Rocker; 16. Worm; 17. Worm gear; 18. Clamping plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Reference Figure 1 and Figure 2 The utility model provides an embodiment of a crankshaft oil seal maintenance tool, comprising an arc block 8, the inner wall of the arc block 8 is fixedly connected to the motor 7, the outside of the arc block 8 is fixedly connected to a plurality of limit blocks 9, the inner wall of the limit block 9 is slidably connected to a slider 10, the outer side of the slider 10 is fixedly connected to a connecting block 12, the outer side of the arc block 8 is rotatably connected to a fixed block 13, the outer side of the fixed block 13 is fixedly connected to a turntable 11, the outer side of the turntable 11 is provided with a plurality of internal grooves 14, and the outer side of the arc block 8 is installed with a pushing component.

[0030] Furthermore, the device is pushed so that the clamping plate 18 contacts the inner wall of the oil seal fixing place, and then the motor 7 is started. The output end of the motor 7 drives the fixed block 13, and then the rotation drives the turntable 11 to rotate at the same time. Under the rotation of the turntable 11, the connecting block 12 slides along the inner wall of the internal groove 14, and then the connecting block 12 drives the slider 10 to slide along the inner wall of the limit block 9, and then the slider 10 drives the clamping plate 18 to gather toward the center of the fixed block 13 to clamp the crankshaft oil seal, so that the device can fine-tune the clamping size as needed to ensure the correct clamping and safe operation of the oil seal.

[0031] Reference Figure 1 、 Figure 2 and Figure 3The pushing assembly includes two sliding rods 5, one end of the sliding rod 5 is fixedly connected to the outer side of the arc block 8, the outer side of the sliding rod 5 is slidably connected to the mounting part 1, the outer side of the mounting part 1 is provided with a connecting groove 2, the inner wall of the connecting groove 2 is rotatably connected to the threaded rod 3, the outer side of the threaded rod 3 is threadedly connected to the threaded block 4, the outer side of the threaded rod 3 is fixedly connected to a worm gear 17, the outer side of the mounting part 1 is rotatably connected to a rocker 15, and one end of the rocker 15 is fixedly connected to a worm 16.

[0032] Furthermore, when the crankshaft oil seal needs to be disassembled, the rocker 15 is rotated, and the rocker 15 drives the worm 16 to rotate. At this time, under the meshing action of the worm 16, the worm wheel 17 is rotated. At the same time, the threaded rod 3 is driven to rotate at the same time by the worm wheel 17, thereby driving the threaded block 4 to slide along the inner wall of the connecting groove 2. At the same time, the threaded block 4 drives the sliding rod 5 to move back and forth, so that the sliding rod 5 drives the clamping plate 18 to move synchronously through the arc block 8, thereby disassembling the crankshaft oil seal and facilitating subsequent maintenance work. When the maintenance is completed and the crankshaft oil seal needs to be installed, the rocker 15 is rotated and the above steps are repeated to put the crankshaft oil seal back to the oil seal fixing place, and then the clamping plate 18 is separated from the crankshaft oil seal, that is, the installation of the crankshaft oil seal is completed. The clamping plate 18 is pushed by the device, which saves maintenance time and further improves maintenance efficiency.

[0033] Reference Figure 1 and Figure 2 The outside of the connecting block 12 is slidably connected to the inner wall of the internal groove 14, and the connecting block 12 is set to a T shape; the side of the slider 10 away from the limit block 9 is slidably connected to the outside of the turntable 11, and the output end of the motor 7 is fixedly connected to the outside of the fixed block 13.

[0034] Furthermore, when the turntable 11 rotates, the connecting block 12 slides along the inner wall of the internal groove 14, thereby driving the slider 10 to slide, making the device more efficient. The T-shaped connecting block 12 can make the turntable 11 more stable, ensuring the stability of the turntable 11; through the turntable 11, the slider 10 is always in contact with the inner wall of the limit block 9, which improves the reliability of the slider 10 and further improves the stability of the clamping plate 18. The output end of the motor 7 drives the turntable 11 to rotate through the fixed block 13.

[0035] Reference Figure 1 and Figure 2 The outer side of the connecting block 12 is fixedly connected with a clamping plate 18 , and the outer side of the clamping plate 18 is fixedly connected with a rubber pad.

[0036] Furthermore, the crankshaft oil seal is clamped by the clamping plate 18, making it easier to disassemble and install the crankshaft oil seal, and the wear caused to the crankshaft oil seal is reduced by the rubber pad, thereby extending the service life of the crankshaft oil seal.

[0037] Reference Figure 1、 Figure 2 and Figure 3 The longitudinal section of the threaded block 4 is square, and the outside of the threaded block 4 is slidingly connected to the inner wall of the connecting groove 2; the outside of the worm wheel 17 is meshed with the outside of the worm 16 at the corresponding position, and the end of the worm 16 away from the rocker 15 is rotatably connected to the inner wall of the connecting groove 2; the outside of the sliding rod 5 is fixedly connected to the support rod 6, and the outside of the rocker 15 is provided with anti-slip grooves.

[0038] Furthermore, when the threaded rod 3 rotates, the threaded block 4 slides along the inner wall of the connecting groove 2, and the connecting groove 2 limits the threaded block 4 to prevent the threaded block 4 from rotating with the threaded rod 3; the worm 16 drives the worm wheel 17 to rotate through engagement, and one end of the worm 16 contacts the connecting groove 2, making the worm 16 more stable; the function of the support rod 6 is to prevent the motor 7 from hitting the outside of the mounting part 1 and causing damage to the motor 7 itself, thereby ensuring the integrity of the motor 7.

[0039] Working principle: Push the device so that the clamping plate 18 contacts the inner wall of the oil seal fixing place, and then start the motor 7. The output end of the motor 7 drives the turntable 11 to rotate through the fixed block 13, so that the connecting block 12 slides along the inner wall of the internal groove 14, and then the connecting block 12 drives the clamping plate 18 to move through the slider 10, so that multiple clamping plates 18 gather toward the center of the fixed block 13 to clamp the crankshaft oil seal. In this way, the device can be used for crankshaft oil seals of different sizes, enhancing the versatility of the device.

[0040] In addition, when the crankshaft oil seal needs to be disassembled, the rocker 15 is rotated, and the rocker 15 drives the worm 16 to rotate. At this time, the worm 16 drives the worm wheel 17 to rotate through engagement, and then drives the threaded rod 3 to rotate at the same time. Under the action of the thread of the threaded rod 3, the threaded block 4 drives the sliding rod 5 to move back and forth, and then the sliding rod 5 drives the clamping plate 18 to move synchronously through the arc block 8 to disassemble the crankshaft oil seal, which is convenient for subsequent maintenance work. When the maintenance is completed and the crankshaft oil seal needs to be installed, the rocker 15 is rotated and the above steps are repeated to put the crankshaft oil seal back to the oil seal fixing place, and then the clamping plate 18 is separated from the crankshaft oil seal, that is, the installation of the crankshaft oil seal is completed. The clamping plate 18 is pushed by the device, which helps to reduce the workload of maintenance personnel.

[0041] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A crankshaft oil seal repair tool, comprising an arc block (8), characterized in that: The inner wall of the arc block (8) is fixedly connected to a motor (7), the outer part of the arc block (8) is fixedly connected to a plurality of limit blocks (9), the inner wall of the limit block (9) is slidably connected to a slider (10), the outer side of the slider (10) is fixedly connected to a connecting block (12), the outer side of the arc block (8) is rotatably connected to a fixed block (13), the outer side of the fixed block (13) is fixedly connected to a turntable (11), the outer side of the turntable (11) is provided with a plurality of internal grooves (14), and a pushing component is installed on the outer side of the arc block (8).

2. A crankshaft oil seal repair tool according to claim 1, characterized in that: The pushing assembly comprises two sliding rods (5), one end of the sliding rod (5) is fixedly connected to the outer side of the arc block (8), the outer side of the sliding rod (5) is slidably connected to a mounting member (1), the outer side of the mounting member (1) is provided with a connecting groove (2), the inner wall of the connecting groove (2) is rotatably connected to a threaded rod (3), the outer side of the threaded rod (3) is threadedly connected to a threaded block (4), the outer side of the threaded rod (3) is fixedly connected to a worm gear (17), the outer side of the mounting member (1) is rotatably connected to a rocker (15), and one end of the rocker (15) is fixedly connected to a worm gear (16).

3. A crankshaft oil seal repair tool according to claim 1, characterized in that: The outside of the connection block (12) is slidably connected to the inner wall of the inner groove (14), and the connection block (12) is configured to be T-shaped.

4. A crankshaft oil seal repair tool according to claim 1, characterized in that: The side of the sliding block (10) away from the limiting block (9) is slidably connected to the outer side of the rotating disk (11), and the output end of the motor (7) is fixedly connected to the outside of the fixing block (13).

5. A crankshaft oil seal repair tool according to claim 1, characterized in that: A clamping plate (18) is fixedly connected to the outer side of the connection block (12), and a rubber pad is fixedly connected to the outer side of the clamping plate (18).

6. A crankshaft oil seal repair tool according to claim 2, characterized in that: The longitudinal section of the threaded block (4) is square, and the outside of the threaded block (4) is slidably connected to the inner wall of the connecting groove (2).

7. A crankshaft oil seal repair tool according to claim 2, characterized in that: The outside of the worm wheel (17) is meshedly connected with the outside of the worm (16) at the corresponding position, and the end of the worm (16) away from the rocker (15) is rotatably connected to the inner wall of the connecting groove (2).

8. A crankshaft oil seal repair tool according to claim 2, characterized in that: The outside of the sliding rod (5) is fixedly connected to a supporting rod (6), and the outside of the rocker (15) is provided with anti-slip grooves.

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