Engine bearing cap removal device

Abstract

The utility model discloses an engine bearing cap dismounting device belongs to engine maintenance technical field, has solved the mode of easy damage bearing cap of existing bearing cap dismounting, and the construction space is limited, and the problem of low dismounting efficiency. The engine bearing cap dismounting device, including crossbeam, the both ends of crossbeam are equipped with long waist type hole, the long waist type hole inside swing splices has the location screw, the middle of crossbeam is equipped with through -hole, the through -hole inside swing splices has the reverse draw bolt, still be equipped with the adjusting device for adjusting the distance between the nut and crossbeam of reverse draw bolt on the crossbeam, the adjusting device include support cover, adjusting cover, the support cover and adjusting cover all be hollow tubular structure, be equipped with outer thread on the outer wall surface of support cover. The utility model discloses an engine bearing cap dismounting device, has improved the dismounting efficiency, effectively avoided the problem of bearing cap damage.

Description

Technical Field

[0001] This utility model relates to the field of engine maintenance technology, and more specifically, it relates to an engine bearing cover disassembly device. Background Technology

[0002] During engine maintenance, especially when disassembling and assembling the crankshaft, the bearing cap usually needs to be removed before the crankshaft can be removed. Because the bearing cap is interference-fitted to the engine block, and after prolonged use, the bearing cap is tightly fitted to the engine block, making it difficult to remove by hand. Therefore, most workers use a hammer to tap the bearing cap from side to side to loosen it. However, this method can easily cause the bearing cap to fall and damage it. Some workers use an impact hammer with a bolt welded to one end of a pull rod and screwed into the center hole of the bearing cap. By quickly moving a moving iron block fitted on the pull rod, the impact force of the iron block is used to pull out the bearing cap. However, this method can also damage the threads of the bearing cap bolts or break the welded bolts. Moreover, the bearing cap is usually located at the bottom of the engine, and the pull rod of the impact hammer is long, making it inconvenient to apply force, especially for engine maintenance in the field or on a ship where the working space is very limited, severely restricting the operator's operation. Therefore, there is an urgent need to design a convenient engine bearing cap removal device. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an engine bearing cover disassembly device that addresses the above-mentioned shortcomings of the prior art, effectively avoids damage to the bearing cover during disassembly, and greatly improves disassembly efficiency.

[0004] The technical solution of this utility model is as follows: an engine bearing cover disassembly device includes a crossbeam, both ends of which are provided with elongated slots, and positioning screws are movably inserted into the elongated slots. A through hole is provided in the middle of the crossbeam, and a pull-back bolt is movably inserted into the through hole. The crossbeam is also provided with an adjustment device for adjusting the distance between the nut of the pull-back bolt and the crossbeam. The adjustment device includes a support sleeve and an adjustment sleeve. Both the support sleeve and the adjustment sleeve are hollow tubular structures. The outer wall of the support sleeve is provided with external threads, and the inner wall of the adjustment sleeve is provided with internal threads adapted to the external threads. The support sleeve and the adjustment sleeve are threadedly connected. The support sleeve is placed on the crossbeam, and the central axes of the through hole, the support sleeve, and the adjustment sleeve are all on the same straight line. The pull-back bolt passes through the adjustment sleeve, the support sleeve, and the through hole from top to bottom and is threadedly connected to the corresponding threaded hole on the bearing cover.

[0005] As a further improvement, the inner wall of the support sleeve is provided with a plurality of equally spaced magnet rings.

[0006] Furthermore, a rubber pad is provided at the bottom of the crossbeam.

[0007] Furthermore, the support sleeve is provided with a reinforcing plate, the bottom surface of which is in contact with the top surface of the crossbeam.

[0008] Furthermore, the support sleeve and the reinforcing plate are integrally formed.

[0009] Furthermore, at least one magnet block that attracts the crossbeam is provided at the bottom of the reinforcing plates on both sides of the support sleeve.

[0010] Beneficial effects

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] 1. This utility model discloses an engine bearing cover disassembly device. A crossbeam is mounted on the engine body corresponding to the bearing cover. Then, positioning screws are screwed into the corresponding threaded holes on the engine body to fix the crossbeam to the engine body. Next, a pull bolt is passed through the through hole and threaded into the threaded hole in the middle of the bearing cover. By continuing to rotate the pull bolt, the bearing cover is pulled out horizontally using the threaded connection force. The operation is more convenient and labor-saving, effectively avoiding damage to the bearing cover during disassembly and greatly improving disassembly efficiency.

[0013] 2. The present invention provides an engine bearing cover disassembly device in which multiple components can be detachably mounted on a crossbeam, making it easy to carry the disassembly device. When the device is not in use, it can be removed for easy storage, reducing the space required for storage, and facilitating the maintenance of each component. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged structural diagram of A in the middle;

[0016] Figure 3 This is a top view of the structure of this utility model;

[0017] Figure 4 This is an enlarged cross-sectional view of the reinforcing plate in this utility model.

[0018] Among them: 1-crossbeam, 2-long waist-shaped hole, 3-positioning screw, 4-through hole, 5-reverse bolt, 6-support sleeve, 7-adjusting sleeve, 8-magnetic ring, 9-rubber pad, 10-reinforcing plate, 11-rounded corner, 12-magnetic block. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0020] See Figure 1-4An engine bearing cover disassembly device includes a crossbeam 1, with elongated holes 2 at both ends of the crossbeam 1. Positioning screws 3 are movably inserted into the elongated holes 2, and the positioning screws 3 can move within the elongated holes 2 to adjust the installation distance between the two positioning screws 3, thus adapting to threaded holes of different widths on engine bodies and expanding its applicability to different engine models. A through hole 4 is provided in the middle of the crossbeam 1, with a pull-back bolt 5 movably inserted into the through hole 4. The crossbeam 1 also has a nut for adjusting the distance between the pull-back bolt 5 and the crossbeam 1. The distance adjustment device includes a support sleeve 6 and an adjusting sleeve 7. Both support sleeve 6 and adjusting sleeve 7 are hollow tubular structures. The outer wall of the support sleeve 6 has external threads, and the inner wall of the adjusting sleeve 7 has internal threads that match the external threads. The support sleeve 6 and adjusting sleeve 7 are threadedly connected. By rotating the adjusting sleeve 7, the overall length of the support sleeve 6 and adjusting sleeve 7 is adjusted, thereby adjusting the distance between the crossbeam 1 and the nut of the pull-back bolt 5. This allows the pull-back bolt 5 to quickly pull the bearing cover to move, further improving disassembly efficiency. The support sleeve 6 is placed... When the pull-back bolt 5 is placed on the crossbeam 1, and passes through the adjusting sleeve 7, support sleeve 6, and through hole 4 in sequence and is threaded into the threaded hole in the middle of the bearing cap, the bottom surface of the nut of the pull-back bolt 5 is in contact with the top end face of the adjusting sleeve 7, and the bottom end face of the support sleeve 6 is in contact with the top end face of the crossbeam 1, thereby achieving the purpose of installing the adjusting sleeve 7 and support sleeve 6 on the crossbeam 1; and the central axes of the through hole 4, support sleeve 6, and adjusting sleeve 7 are all on the same straight line, ensuring that the crossbeam 1 on both sides of the pull-back bolt 5 is subjected to uniform force, effectively extending the service life of the disassembly device. Lifespan; The pull-back bolt 5 passes through the adjusting sleeve 7, the support sleeve 6, and the through hole 4 from top to bottom and is threadedly connected to the corresponding threaded hole on the bearing cover. With the addition of the support sleeve 6 and the adjusting sleeve 7, the support sleeve 6 can be placed in the position corresponding to the through hole 4 during use, and the pull-back bolt 5 can pass through the adjusting sleeve 7, the support sleeve 6, and the through hole 4 in sequence and be threadedly connected to the threaded hole in the middle of the bearing cover. This allows the distance between the crossbeam 1 and the nut of the pull-back bolt 5 to be adjusted, so that the pull-back bolt 5 can quickly pull the bearing cover to move, further improving the disassembly efficiency.

[0021] Preferably, the two ends of the crossbeam 1 are provided with rounded corners 11, which can prevent people from being scratched at the two ends of the crossbeam 1 during use and improve the safety of operation.

[0022] In use, the crossbeam 1 is mounted on the machine body corresponding to the bearing cover, and then the positioning screw 3 is screwed into the corresponding threaded hole of the machine body to fix the crossbeam 1 to the machine body. Next, the pull bolt 5 is passed through the through hole 4 and threaded into the threaded hole in the middle of the bearing cover. Continue to rotate the pull bolt 5 and use the threaded connection force to pull the bearing cover out horizontally. The operation is more convenient and labor-saving, effectively avoiding damage to the bearing cover during disassembly and greatly improving disassembly efficiency.

[0023] In this embodiment, the inner wall of the support sleeve 6 is provided with a plurality of equally spaced magnetic rings 8. In use, the disassembly device is usually flipped and installed on the engine block. At this time, the nut of the pullback bolt 5 faces downward. Under the action of gravity, the pullback bolt 5 will fall vertically and disengage from the through hole 4 and the support sleeve 6. By installing a plurality of magnetic rings 8 on the inner wall of the support sleeve 6, the pullback bolt 5 is fixed by adsorption using the magnetic rings 8. This satisfies the need for the pullback bolt 5 to rotate and also avoids the problem of the pullback bolt 5 coming loose from the support sleeve 6.

[0024] In this embodiment, a rubber pad 9 is provided at the bottom of the crossbeam 1. When in use, the crossbeam 1 is mounted on the body corresponding to the bearing cover. The rubber pad 9 is placed between the crossbeam 1 and the body to make flexible contact between the crossbeam 1 and the body. During the process of disassembling the bearing cover, the crossbeam 1 and the body can be prevented from squeezing each other, thereby avoiding damage to the body.

[0025] In this embodiment, a reinforcing plate 10 is provided on the support sleeve 6. The bottom surface of the reinforcing plate 10 is in contact with the top surface of the crossbeam 1. The reinforcing plate 10 is fixedly installed on the lower part of the support sleeve 6, and the bottom surface of the reinforcing plate 10 and the bottom surface of the support sleeve 6 are on the same plane. When the support sleeve 6 is placed on the crossbeam 1, the bottom surface of the reinforcing plate 10 is in contact with the top surface of the crossbeam 1. During the process of pulling the bearing cover out flat using the threaded connection force, the pull bolt 5 will apply a vertical pressure to the adjusting sleeve 7 towards the crossbeam 1. This pressure is applied to the crossbeam 1 through the support sleeve 6. By installing the reinforcing plate 10 at the lower part of the support sleeve 6, the overall contact area with the crossbeam 1 is increased, thereby dispersing part of the pressure on the crossbeam 1 and extending the service life of the device.

[0026] In this embodiment, the support sleeve 6 and the reinforcing plate 10 are integrally formed, which reduces the number of manufacturing parts, lowers manufacturing costs, and reduces the time required for assembly, effectively improving work efficiency; at the same time, it improves the overall structural strength of the support sleeve 6 and the reinforcing plate 10.

[0027] In this embodiment, the bottom of the reinforcing plates 10 on both sides of the support sleeve 6 is provided with at least one magnet block 12 that attracts the crossbeam 1. The bottom of the reinforcing plates 10 of the support sleeve 6 is equipped with two magnet blocks 12. The magnet blocks 12 attract the crossbeam 1, thereby detachably installing the reinforcing plates 10 on the crossbeam 1. In other embodiments, the number of magnet blocks 12 installed at the bottom of the reinforcing plates 10 on both sides of the support sleeve 6 can be increased to 3, 4, 5, etc., thereby improving the stability of the support sleeve 6 placed on the crossbeam 1.

[0028] In this engine bearing cover disassembly device, the positioning screw 3, the pull bolt 5, and the support sleeve 6 can all be detachably installed on the crossbeam 1. The support sleeve 6 and the adjusting sleeve 7 are also detachably connected, which makes it easy to carry the disassembly device. When the device is not in use, it can be removed for easy storage, reducing the space required for storage, and at the same time, it is convenient to repair and maintain each component.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present utility model. These modifications and improvements will not affect the effectiveness of the present utility model or the practicality of the patent.

Claims

1. An engine bearing cap removal device characterized by, The system includes a crossbeam (1), with elongated holes (2) at both ends. A positioning screw (3) is movably inserted into each elongated hole (2). A through hole (4) is provided in the middle of the crossbeam (1), and a pull-back bolt (5) is movably inserted into the through hole (4). The crossbeam (1) is also equipped with an adjustment device for adjusting the distance between the nut of the pull-back bolt (5) and the crossbeam (1). The adjustment device includes a support sleeve (6) and an adjustment sleeve (7), both of which are hollow. The tubular structure has an external thread on the outer wall of the support sleeve (6) and an internal thread on the inner wall of the adjusting sleeve (7) that is compatible with the external thread. The support sleeve (6) and the adjusting sleeve (7) are threadedly connected. The support sleeve (6) is placed on the crossbeam (1), and the central axes of the through hole (4), the support sleeve (6), and the adjusting sleeve (7) are all on the same straight line. The pull bolt (5) passes through the adjusting sleeve (7), the support sleeve (6), and the through hole (4) from top to bottom and is threadedly connected to the corresponding threaded hole on the bearing cover.

2. An engine bearing cap removal device according to claim 1, wherein, The inner wall of the support sleeve (6) is provided with a plurality of equally spaced magnet rings (8).

3. An engine bearing cap removal device according to claim 1, wherein The bottom of the crossbeam (1) is provided with a rubber pad (9).

4. An engine bearing cap removal device according to claim 1, wherein The support sleeve (6) is provided with a reinforcing plate (10), and the bottom surface of the reinforcing plate (10) is in contact with the top surface of the crossbeam (1).

5. The engine bearing cover disassembly device according to claim 4, characterized in that, The support sleeve (6) and the reinforcing plate (10) are integrally formed.

6. An engine bearing cap removal device according to claim 5, wherein, The bottom of the reinforcing plates (10) on both sides of the support sleeve (6) is provided with at least one magnet block (12) that attracts the crossbeam (1).

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