Fixing device for disassembly and assembly of flywheel of diesel engine

Abstract

The utility model discloses a fixing device for disassembling and assembling a flywheel of a diesel engine, which belongs to the technical field of disassembling and assembling of engine parts and comprises a support detachably connected with a flywheel casing, 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. According to the utility model, through the arranged connecting hole, the bracket and the position of the flywheel shell for installing the starting motor are conveniently connected together, so that the flywheel shell bracket is conveniently connected with the flywheel shell; meanwhile, the fixed gear can be connected with the flywheel in a meshed mode, so that the flywheel is clamped through the flywheel fixing device fixed to the flywheel shell, a flywheel bolt is convenient to screw, and meanwhile mechanical damage and damage to the flywheel shell are avoided.

Description

Technical Field

[0001] This utility model belongs to the field of engine component disassembly and assembly technology, specifically relating to a fixing device for disassembling and assembling a diesel engine flywheel. Background Technology

[0002] A flywheel is a wheel-shaped energy accumulator with significant rotational inertia in a diesel engine. Mounted at the rear end of the engine crankshaft and bolted to the engine, the flywheel's kinetic energy increases and is stored as engine speed increases. Conversely, as engine speed decreases, the flywheel's kinetic energy decreases and is released, enabling the engine to output torque. In engine testing and maintenance, it is frequently necessary to disassemble and reassemble the flywheel.

[0003] When disassembling and assembling a diesel engine flywheel, due to the special environment and location, a flywheel bolt tightening machine cannot be used, requiring manual disassembly and assembly. However, because the tightening torque of the flywheel bolts is relatively large, the flywheel will rotate when the bolts are tightened, necessitating its fixation. To solve this problem, when tightening the flywheel bolts, two bolts are used to fix a metal plate to the threaded holes of the flywheel and flywheel housing respectively. When the flywheel bolts are tightened, the flywheel rotates, and when it reaches a certain position, the metal plate and bolts will fix the flywheel in place, allowing other flywheel bolts to be tightened or loosened. However, this method of fixing the flywheel poses installation hazards and the risk of damaging the flywheel housing.

[0004] The main load-bearing structures in the aforementioned flywheel fixing method are located at the flywheel threaded hole and the flywheel housing threaded hole. The flywheel housing is made of a relatively soft material, while the tightening torque of the flywheel bolt is relatively large. There is a risk of damaging the flywheel housing when tightening the flywheel bolt. If the fixing threaded hole on the flywheel housing is suddenly damaged when the worker is tightening the flywheel bolt, the worker may suffer mechanical injury. Utility Model Content

[0005] To address the risk of damage to the flywheel housing and potential mechanical injury to workers when manually tightening flywheel bolts in existing technologies, this invention provides a fixing device for the disassembly and assembly of a diesel engine flywheel. The bracket is bolted to the starter motor and, through a fixed gear, engages with the flywheel to lock it in place, preventing the flywheel from rotating when the bolts are tightened, thus avoiding mechanical injury and damage to the flywheel housing.

[0006] The technical solution adopted by the fixing device for disassembling and assembling a diesel engine flywheel in this utility model is as follows:

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

[0008] The further improvement of the technical scheme of the utility model lies in that: the both ends of the support are provided with connecting holes for connecting with the flywheel shell, and a vertical adjusting cavity is vertically provided at the central position of the connecting block; wherein, a vertical adjusting rod is hinged at the position of the support corresponding to the vertical adjusting cavity.

[0009] The further improvement of the technical scheme of the utility model above lies in that: the size and shape of the cross section of the vertical adjusting cavity and the cross section of the fixed block are the same.

[0010] The further improvement of the technical scheme of the utility model above lies in that: a adjusting handle is fixedly sleeved at the bottom end of the adjusting rod, the adjusting rod extends upward and penetrates through the support and the vertical adjusting cavity, and the top end of the adjusting rod extends into the fixed block and is threadedly connected with the fixed block.

[0011] The further improvement of the technical scheme of the utility model above lies in that: an adjusting hole matched with the adjusting rod is vertically provided at the central position of the fixed block.

[0012] The further improvement of the technical scheme of the utility model above lies in that: a horizontal adjusting cavity is provided at the central position of the support, and a strip-shaped hole is horizontally provided at the front side of the support corresponding to the horizontal adjusting cavity and is in communication with the horizontal adjusting cavity.

[0013] The further improvement of the technical scheme of the utility model above lies in that: the width of the connecting block is the same as the width of the horizontal adjusting cavity, the length of the horizontal adjusting cavity is greater than the length of the connecting block, and the connecting block extends downward and penetrates through the horizontal adjusting cavity.

[0014] The further improvement of the technical scheme of the utility model above lies in that: a plurality of fixing holes are provided at the position of the connecting block corresponding to the strip-shaped hole, and a fixing bolt is threadedly connected with the front side of the support in each fixing hole.

[0015] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model includes:

[0016] The connecting hole is provided, so that the support and the flywheel shell are connected together at the position of the starting motor, thereby conveniently connecting the utility model with the flywheel shell; meanwhile, the fixed gear is provided, so that the flywheel is engaged and connected together, thereby clamping the flywheel by the utility model fixed on the flywheel shell, conveniently twisting the flywheel bolt, and avoiding mechanical injury and damage of the flywheel shell.

[0017] Meanwhile, the adjusting rod is arranged, the height of the fixed block and the fixed gear can be adjusted in the vertical direction, so that when the fixed gear and the flywheel cannot be engaged together, the height of the fixed gear can be reduced, the flywheel is conveniently rotated, the position of the flywheel tooth is adjusted, until the flywheel tooth and the gear of the fixed gear correspond together, then the fixed gear is lifted through the adjusting rod, so that the flywheel and the fixed gear are engaged together, and the purpose of fixing the flywheel is achieved.

[0018] The horizontal adjusting cavity, the strip-shaped hole and the fixing bolt are arranged, so that the position of the fixed gear can be adjusted in the horizontal direction, and then the fixed gear can be conveniently aligned with the flywheel in the vertical direction. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of a fixing device for dismounting and mounting a flywheel of a diesel engine of the utility model;

[0020] Figure 2 is a separation structural schematic view of a connecting block and a fixed block of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model;

[0021] Figure 3 is a structural schematic view of the connecting block of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model;

[0022] Figure 4 is a sectional structure schematic view of the fixed block of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model;

[0023] Figure 5 is a structural schematic view of the second embodiment of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model;

[0024] Figure 6 is a structural schematic view of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model; Figure 5 is a structural schematic view of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model;

[0025] Figure 7 is a structural schematic view of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model; Figure 5 is a structural schematic view of the connecting block of the fixing device for dismounting and mounting the flywheel of the diesel engine of the utility model.

[0026] In the drawings: 1, support; 11, connecting hole; 12, adjusting rod; 13, adjusting handle; 14, horizontal adjusting cavity; 15, strip-shaped hole;

[0027] 1, connecting block; 21, vertical adjusting cavity; 22, fixed hole; 23, fixing bolt;

[0028] 2, fixed block; 31, adjusting hole;

[0029] 3, fixed gear. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. In the following description, the description of the known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0031] Embodiment one

[0032] Firstly refer to Figure 1 , according to Figure 1 It can be known that the utility model includes support 1, the both ends of the support 1 are respectively provided with connecting hole 11, the top of the support 1 is fixedly connected with connecting block 2 in the central position, the top of the connecting block 2 is provided with fixed block 3 that can move up and down, and the top of the fixed block 3 is fixedly connected with fixed gear 4.

[0033] The connecting block 2 in the utility model can be referred to Figure 2 and Figure 3 , according to Figure 2 and Figure 3 It can be known that the central position of the connecting block 2 is vertically provided with vertical adjusting cavity 21 that penetrates the connecting block 2, and the size and shape of the cross section of the vertical adjusting cavity 21 are all same with the size and shape of the cross section of the fixed block 3.

[0034] Continuously refer to Figure 2 It can be known that the support 1 is provided with adjusting rod 12 that vertically penetrates the support 1 to the position of the vertical adjusting cavity 21, the adjusting rod 12 is hinged with the support 1, the bottom end of the adjusting rod 12 is fixedly sleeved with adjusting handle 13, the top of the adjusting rod 12 penetrates the support 1 and the vertical adjusting cavity 21 and extends into the fixed block 3 and is screw-connected with the fixed block 3.

[0035] In order to facilitate the screw connection of the top of the adjusting rod 12 and the fixed block 3, continuously refer to Figure 2 It can be known that the top of the adjusting rod 12 is provided with external thread, and refer to Figure 4 It can be known that the central position of the fixed block 3 is vertically provided with adjusting hole 31, and the inner wall of the adjusting hole 31 is provided with internal thread matched with the above-mentioned external thread.

[0036] The working principle of the embodiment is as follows: when the utility model is used, firstly, the starting motor on the flywheel shell is removed, then the connecting hole 11 on the support 1 is aligned with the threaded hole for installing the starting motor, and the position of the support 1 and the flywheel shell for installing the starting motor is connected together through bolts.

[0037] Then rotate the flywheel, make the gear on the flywheel and the gear of the fixed gear 4 stagger together in the vertical direction, then rotate the adjusting handle 13 to drive the adjusting rod 12 to rotate, so that the fixed block 3 moves up in the vertical adjusting cavity 21, until the fixed gear 4 and the flywheel are engaged together, so as to fix the flywheel, and facilitate the rotation of the flywheel bolt.

[0038] Embodiment two

[0039] Embodiment two is based on embodiment one, as described in Figure 5 And Figure 6 The horizontal adjusting cavity 14 is provided with a horizontal adjusting cavity 14 which penetrates the support 1, and the length of the horizontal adjusting cavity 14 is greater than the length of the connecting block 2.

[0040] Continue to refer to Figure 5 And Figure 6 The front side of the support 1 is provided with a strip-shaped hole 15 which is in communication with the horizontal adjusting cavity 14.

[0041] Referring to Figure 5 And Figure 7 It can be seen that the connecting block 2 extends downwardly through the horizontal adjusting cavity 14, and a plurality of fixed holes 22 are provided on the front side of the connecting block 2 at a position which is on the same horizontal line as the strip-shaped hole 15, and the inner wall of each fixed hole 22 is provided with an internal thread hole, and the front side of the support 1 is provided with a fixed bolt 23 which is threadedly connected with the corresponding fixed hole 22 at a position corresponding to each fixed hole 22.

[0042] The working principle of the embodiment is as follows: when the flywheel shell is used, the starting motor on the flywheel shell is first removed, then the connecting hole 11 on the support 1 is aligned with the threaded hole for installing the starting motor, and the positions of the support 1 and the flywheel shell for installing the starting motor are connected together through the bolt.

[0043] When the fixed gear 4 and the flywheel are not located on the same vertical line in the vertical direction, the fixed bolt 23 can be loosened, the horizontal position of the connecting block 2 in the horizontal adjusting cavity 14 can be adjusted, 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 and the support 1 are fixedly connected together through the fixed bolt 23.

[0044] Then rotate the flywheel, make the gear on the flywheel and the gear of the fixed gear 4 stagger together in the vertical direction, then rotate the adjusting handle 13 to drive the adjusting rod 12 to rotate, so that the fixed block 3 moves up in the vertical adjusting cavity 21, until the fixed gear 4 and the flywheel are engaged together, so as to fix the flywheel, and facilitate the rotation of the flywheel bolt.

[0045] In the above embodiment, the utility model provides a kind of fixed device of diesel engine flywheel disassembly, by the connecting hole being set, it is convenient to connect together with the position of flywheel shell and starter motor installation support, to be connected with flywheel shell conveniently by the utility model;Meanwhile, by the fixed gear being set, it can be engaged together with flywheel, to be stuck by the utility model fixed on flywheel shell flywheel, it is convenient to screw flywheel bolt, simultaneously avoid the occurrence of mechanical injury and flywheel shell damage.

[0046] The above-described embodiments are merely preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various modifications and improvements to the technical solution of the present utility model made by those skilled in the art shall fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.

Claims

1. A fixing device for assembling and disassembling a diesel engine flywheel, characterized in that: It includes a bracket (1) that is detachably connected to the flywheel housing. A connecting block (2) is provided on the top of the bracket (1), and a fixing block (3) that can move up and down is provided on the top of the connecting block (2). A fixing gear (4) for meshing with the flywheel is fixedly provided on the top of the fixing block (3).

2. The fixing device for disassembling and assembling a diesel engine flywheel 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 the center of the connecting block (2) is provided with a vertical adjustment cavity (21); wherein, the bracket (1) is hinged with a vertical adjustment rod (12) at the position corresponding to the vertical adjustment cavity (21).

3. The fixing device for disassembling and assembling a diesel engine flywheel 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 fixed block (3).

4. The fixing device for disassembling and assembling a diesel engine flywheel according to claim 2, characterized in that: The bottom end of the adjusting rod (12) is fixedly fitted with an adjusting handle (13). The adjusting rod (12) extends upward 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. The fixing device for disassembling and assembling a diesel engine flywheel according to claim 3, characterized in that: An adjustment hole (31) is vertically provided at the center of the fixing block (3) to cooperate with the adjustment rod (12).

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

7. The fixing device for disassembling and assembling a diesel engine flywheel according to claim 6, characterized in that: The width of the connecting 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 connecting block (2), and the connecting block (2) extends downward through the horizontal adjustment cavity (14).

8. The fixing device for disassembling and assembling a diesel engine flywheel according to claim 6, characterized in that: The connecting block (2) has several fixing holes (22) at the position corresponding to the strip hole (15), and each fixing hole (22) is threaded with a fixing bolt (23) that fits against the front side of the bracket (1).

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