Fixing device for disassembly and assembly of flywheel of diesel engine

Abstract

The invention discloses a fixing device for diesel engine flywheel disassembly and assembly, and belongs to the technical field of engine part disassembly and assembly. The fixing device comprises a support detachably connected with a flywheel shell, a connecting block is arranged at the top of the support, and a fixing block capable of moving up and down is arranged at the top of the connecting block; and a fixed gear engaged with the flywheel is fixedly arranged at the top of the fixed block. Through the formed connecting holes, the support and the position, where a starting motor is installed, of a flywheel shell are conveniently connected together, and therefore the starting motor can be conveniently connected with the flywheel shell; and meanwhile, the fixed gear can be connected with the flywheel in a meshed mode, so that the flywheel is clamped through the device fixed to the flywheel shell, a flywheel bolt is conveniently screwed, and meanwhile mechanical damage and damage to the flywheel shell are avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of disassembly and assembly of engine parts, and in particular relates to a fixing device for disassembly and assembly of a flywheel of a diesel engine. Background Art

[0002] The flywheel is a wheel-shaped accumulator with large rotational inertia on a diesel engine. The flywheel is installed at the rear end of the engine crankshaft and connected to the engine through bolts. When the engine speed increases, the kinetic energy of the flywheel increases and stores the energy. When the engine speed decreases, the kinetic energy of the flywheel decreases and releases the energy to achieve the external output torque of the engine. In engine testing and maintenance work, it is often necessary to disassemble and assemble the flywheel.

[0003] When disassembling and assembling the flywheel of a diesel engine, due to the special environment and special location, it is impossible to use a flywheel bolt tightening machine, and the flywheel needs to be disassembled and assembled manually. However, since the tightening torque of the flywheel bolts is large, the flywheel will rotate when the bolts are tightened, and the flywheel needs to be fixed. To solve the above problem, when tightening the flywheel bolts, two bolts are used to fix a metal plate on the threaded holes of the flywheel and the flywheel housing respectively. When the flywheel bolts are tightened, the flywheel rotates accordingly. When it rotates to a certain position, the metal plate and the bolts will fix the flywheel, and then the other flywheel bolts can be tightened or loosened. However, the above method of fixing the flywheel has installation hazards and the risk of damaging the flywheel housing.

[0004] The main bearing force of the above-mentioned flywheel fixing method is at the flywheel threaded hole and the flywheel housing threaded hole. The material of the flywheel housing is relatively soft, and the tightening torque of the flywheel bolt is relatively large. There is a risk of damaging the flywheel housing when tightening the flywheel bolt; when the worker tightens the flywheel bolt, if the fixed threaded hole on the flywheel housing is suddenly damaged, the worker is likely to suffer mechanical injury. Summary of the invention

[0005] In order to solve the problem in the prior art that there is a risk of damaging the flywheel housing when manually tightening the flywheel bolts, which leads to the probability of mechanical injury to workers, the present invention provides a fixing device for disassembling and assembling the flywheel of a diesel engine, wherein the bracket is installed at the position of the starter motor by bolts, and the fixed gear is arranged to engage with the flywheel, thereby jamming the flywheel to prevent the flywheel from rotating when the flywheel bolts are tightened, thereby avoiding mechanical injury and damage to the flywheel housing.

[0006] The technical solution adopted by the fixing device for disassembling and assembling a flywheel of a diesel engine of the present invention is:

[0007] A fixing device for disassembling and assembling a flywheel of a diesel engine comprises a bracket detachably connected to a flywheel housing, a connecting block is fixedly arranged on the top of the bracket, a fixing block movable up and down is arranged on the top of the connecting block, and a fixing gear for meshing with the flywheel is fixedly arranged on the top of the fixing block.

[0008] A further improvement of the technical solution of the present invention is that: connection holes for connecting to the flywheel housing are provided at both ends of the bracket, and a vertical adjustment cavity is vertically provided at the center position of the connecting block; wherein a vertical adjustment rod is hingedly connected to the position of the bracket corresponding to the vertical adjustment cavity.

[0009] A further improvement of the above technical solution of the present invention is that the cross section of the vertical adjustment cavity is the same in size and shape as the cross section of the fixing block.

[0010] A further improvement of the above technical solution of the present invention is that: the bottom fixed sleeve of the adjusting rod is provided with an adjusting handle, the adjusting rod extends upward through the bracket and the vertical adjusting cavity, and the top end of the adjusting rod extends into the fixing block and is threadedly connected to the fixing block.

[0011] A further improvement of the above technical solution of the present invention is that an adjustment hole matching with the adjustment rod is vertically opened at the center of the fixing block.

[0012] A further improvement of the technical solution of the present invention is that a horizontal adjustment cavity is opened at the center of the bracket, and a strip hole communicating with the horizontal adjustment cavity is opened horizontally at the front side of the bracket corresponding to the position of the horizontal adjustment cavity.

[0013] A further improvement of the above technical solution of the present invention is that: the width of the connecting block is the same as the width of the horizontal adjustment cavity, the length of the horizontal adjustment cavity is greater than the length of the connecting block, and the connecting block extends downward through the horizontal adjustment cavity.

[0014] A further improvement of the above technical solution of the present invention is that: a plurality of fixing holes are provided at positions of the connection block corresponding to the strip-shaped holes, and each fixing hole is threadedly connected with a fixing bolt that fits the front side of the bracket.

[0015] Due to the adoption of the above technical solution, the technical advances achieved by the present invention include:

[0016] The present invention facilitates the connection of the bracket with the position of the flywheel housing where the starter motor is installed by opening a connecting hole, thereby conveniently connecting the present invention with the flywheel housing; at the same time, the fixed gear is arranged to mesh with the flywheel, so that the flywheel is clamped by the present invention fixed on the flywheel housing, which facilitates the screwing of the flywheel bolt and avoids the occurrence of mechanical damage and damage to the flywheel housing.

[0017] At the same time, the adjusting rod provided in the present invention can adjust the height of the fixed block and the fixed gear in the vertical direction, so that when the fixed gear and the flywheel cannot be meshed together, the height of the fixed gear can be lowered to facilitate the rotation of the flywheel and adjust the position of the flywheel teeth until the flywheel teeth correspond to the teeth of the fixed gear, and then the fixed gear is lifted by the adjusting rod, so that the flywheel and the fixed gear are meshed together, thereby achieving the purpose of fixing the flywheel.

[0018] In the present invention, the position of the fixed gear can be adjusted in the horizontal direction by means of the horizontal adjustment cavity, the strip hole and the fixing bolt, so that the fixed gear can be conveniently aligned with the flywheel in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a fixing device for disassembling and assembling a flywheel of a diesel engine according to the present invention;

[0020] Figure 2 It is a schematic diagram of the separation structure of a connecting block and a fixing block of a fixing device for disassembling and assembling a flywheel of a diesel engine according to the present invention;

[0021] Figure 3 It is a structural schematic diagram of a connecting block of a fixing device for disassembling and assembling a flywheel of a diesel engine according to the present invention;

[0022] Figure 4 It is a schematic cross-sectional structure diagram of a fixing block of a fixing device for disassembling and assembling a flywheel of a diesel engine according to the present invention;

[0023] Figure 5 It is a structural schematic diagram of a second embodiment of the present invention for disassembling and assembling a flywheel of a diesel engine;

[0024] Figure 6 The invention discloses a method for disassembling and assembling a flywheel of a diesel engine. Figure 5 Schematic diagram of the structure of the bracket;

[0025] Figure 7 The invention discloses a method for disassembling and assembling a flywheel of a diesel engine. Figure 5 Schematic diagram of the connection block structure.

[0026] In the accompanying drawings: 1, bracket; 11, connecting hole; 12, adjustment rod; 13, adjustment handle; 14, horizontal adjustment cavity; 15, strip hole;

[0027] 1. Connecting block; 21. Vertical adjustment cavity; 22. Fixing hole; 23. Fixing bolt;

[0028] 2. Fixed block; 31. Adjustment hole;

[0029] 3. Fixed gear. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. In the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0031] Embodiment 1

[0032] First reference Figure 1 ,according to Figure 1 It can be seen that the present invention includes a bracket 1, which has connecting holes 11 at both ends, a connecting block 2 is fixedly connected to the center position of the top of the bracket 1, a fixed block 3 that can move up and down is provided on the top of the connecting block 2, and a fixed gear 4 is fixedly connected to the top of the fixed block 3.

[0033] The connection block 2 of the present invention can be referred to in the specific setting. Figure 2 and Figure 3 ,according to Figure 2 and Figure 3 It can be seen that a vertical adjustment cavity 21 penetrating the connecting block 2 is vertically opened at the center of the connecting block 2 , and the size and shape of the cross section of the vertical adjustment cavity 21 are the same as those of the fixing block 3 .

[0034] Continue to refer Figure 2 It can be seen that the bracket 1 is provided with an adjustment rod 12 which vertically penetrates the bracket 1 at the position of the vertical adjustment cavity 21. The adjustment rod 12 is hinged to the bracket 1, and the bottom end of the adjustment rod 12 is fixedly sleeved with an adjustment handle 13. The top of the adjustment rod 12 penetrates the bracket 1 and the vertical adjustment cavity 21 and extends into the fixed block 3 and is threadedly connected to the fixed block 3.

[0035] In order to facilitate the threaded connection between the top of the adjusting rod 12 and the fixing block 3, continue to refer to Figure 2 It can be seen that the top of the adjusting rod 12 is provided with an external thread, and referring to Figure 4 It can be seen that an adjustment hole 31 is vertically opened at the center of the fixing block 3 , and an inner wall of the adjustment hole 31 is opened with an inner thread matching the outer thread.

[0036] The working principle of this embodiment is as follows: when the present invention is used, the starter motor on the flywheel housing is first removed, and then the connecting hole 11 on the bracket 1 is aligned with the threaded hole for installing the starter motor, and the bracket 1 and the position on the flywheel housing where the starter motor is installed are connected together by bolts.

[0037] Then rotate the flywheel so that the teeth on the flywheel and the teeth of the fixed gear 4 are staggered and matched together in the vertical direction, and then rotate the adjustment handle 13 to drive the adjustment rod 12 to rotate, so that the fixed block 3 moves upward in the vertical adjustment cavity 21 until the fixed gear 4 is meshed with the flywheel, thereby fixing the flywheel and facilitating the tightening of the flywheel bolt.

[0038] Embodiment 2

[0039] Embodiment 2 is based on embodiment 1. Figure 5 and Figure 6 As described above, a horizontal adjustment cavity 14 penetrating the bracket 1 is opened at a position of the bracket 1 corresponding to the connecting block 2 , the width of the horizontal adjustment cavity 14 is the same as the width of the connecting block 2 , and the length of the horizontal adjustment cavity 14 is greater than the length of the connecting block 2 .

[0040] Continue to refer Figure 5 and Figure 6 A strip hole 15 communicating with the horizontal adjustment cavity 14 is horizontally opened on the front side of the bracket 1.

[0041] refer to Figure 5 and Figure 7 It can be seen that the connecting block 2 extends downward through the horizontal adjustment cavity 14, and a plurality of fixing holes 22 are provided on the front side of the connecting block 2 at a position on the same horizontal line as the strip hole 15, and an inner threaded hole is provided on the inner wall of each fixing hole 22. At the same time, a fixing bolt 23 threadedly connected to the corresponding fixing hole 22 is provided at a position corresponding to each fixing hole 22 on the front side of the bracket 1.

[0042] The working principle of this embodiment is as follows: when the present invention is used, the starter motor on the flywheel housing is first removed, and then the connecting hole 11 on the bracket 1 is aligned with the threaded hole for installing the starter motor, and the bracket 1 and the position on the flywheel housing where the starter motor is installed are connected together by bolts.

[0043] When the fixed gear 4 and the flywheel are not located on the same vertical line in the vertical direction, the fixing bolt 23 can be loosened to adjust the horizontal position of the connecting block 2 in the horizontal adjustment chamber 14 until the fixed gear 4 and the flywheel are located on the same vertical line in the vertical direction, and then the connecting block 2 is fixedly connected to the bracket 1 by the fixing bolt 23.

[0044] Then rotate the flywheel so that the teeth on the flywheel and the teeth of the fixed gear 4 are staggered and matched together in the vertical direction, and then rotate the adjustment handle 13 to drive the adjustment rod 12 to rotate, so that the fixed block 3 moves upward in the vertical adjustment cavity 21 until the fixed gear 4 is meshed with the flywheel, thereby fixing the flywheel and facilitating the tightening of the flywheel bolt.

[0045] In the above embodiment, the present invention provides a fixing device for disassembling and assembling the flywheel of a diesel engine. Through the opening of the connecting hole, it is convenient to connect the bracket with the position where the starter motor is installed on the flywheel housing, thereby conveniently connecting the present invention with the flywheel housing; at the same time, through the set fixed gear, it can be meshed and connected with the flywheel, so that the flywheel is clamped by the present invention fixed on the flywheel housing, which facilitates the twisting of the flywheel bolts and avoids the occurrence of mechanical damage and damage to the flywheel housing.

[0046] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary persons in the art to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents for which protection is sought in the present invention have been fully recorded in the claims.

Claims

1. A fixing device for disassembling and assembling a flywheel of a diesel engine, characterized in that: The invention comprises a bracket (1) which is detachably connected to a flywheel housing, a connecting block (2) being arranged on the top of the bracket (1), a fixing block (3) which can move up and down being arranged on the top of the connecting block (2), and a fixing gear (4) which is used to mesh with the flywheel being fixedly arranged on the top of the fixing block (3).

2. A diesel engine flywheel disassembly and assembly fixing device according to claim 1, characterized in that: Both ends of the bracket (1) are provided with connection holes (11) for connecting to the flywheel housing, and a vertical adjustment cavity (21) is vertically provided at the center of the connection block (2); wherein a vertical adjustment rod (12) is hingedly connected to the bracket (1) at a position corresponding to the vertical adjustment cavity (21).

3. A diesel engine flywheel disassembly and assembly fixing device according to claim 2, characterized in that: The cross section of the vertical adjustment cavity (21) is the same in size and shape as the cross section of the fixing block (3).

4. A diesel engine flywheel disassembly and assembly fixing device according to claim 2, characterized in that: The bottom fixed sleeve of the adjusting rod (12) is provided with an adjusting handle (13), the adjusting rod (12) extends upwards through the bracket (1) and the vertical adjusting cavity (21), and the top end of the adjusting rod (12) extends into the fixing block (3) and is threadedly connected to the fixing block (3).

5. A diesel engine flywheel disassembly and assembly fixing device according to claim 3, characterized in that: An adjustment hole (31) matching with the adjustment rod (12) is vertically opened at the center of the fixed block (3).

6. A diesel engine flywheel disassembly and assembly fixing device according to any one of claims 1 to 5, characterized in that: A horizontal adjustment cavity (14) is provided at the center of the bracket (1), and a strip-shaped hole (15) communicating with the horizontal adjustment cavity (14) is provided horizontally on the front side of the bracket (1) at a position corresponding to the horizontal adjustment cavity (14).

7. A diesel engine flywheel disassembly and assembly fixing device according to claim 6, characterized in that: The width of the connection block (2) is the same as the width of the horizontal adjustment cavity (14), the length of the horizontal adjustment cavity (14) is greater than the length of the connection block (2), and the connection block (2) extends downwardly through the horizontal adjustment cavity (14).

8. A diesel engine flywheel disassembly and assembly fixing device according to claim 6, characterized in that: The connection block (2) is provided with a plurality of fixing holes (22) at positions corresponding to the strip-shaped holes (15), and each fixing hole (22) is threadedly connected with a fixing bolt (23) that fits the front side of the bracket (1).

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