Engine crankshaft damping hub assembling die

Abstract

The utility model discloses an engine crankshaft damping hub assembling die, and particularly relates to the technical field of damping hub assembling, the engine crankshaft damping hub assembling die comprises a bottom plate, the upper end face of the bottom plate is symmetrically and fixedly connected with two supporting side plates, and the upper end faces of the two supporting side plates are fixedly connected with a top plate; a positioning assembly is arranged in a groove formed in the upper end face of the bottom plate, and the positioning assembly is composed of a positioning base, an insertion hole, a handle, a threaded rod and a clamping block. By arranging the adjustable limiting structure, the position of the damping hub in the axial direction can be accurately controlled in the assembling process, so that the damping hub is accurately positioned at the preset position on the crankshaft, the consistency and the accuracy of each time of assembling are ensured, the product quality is improved, and the production efficiency is improved. The situation that the damping effect of the damping hub is weakened due to inaccurate position assembly is avoided, it is guaranteed that the damping hub can fully play the damping effect, the running stability of an engine is guaranteed, and normal running of the engine is not affected.

Description

Technical Field

[0001] The utility model relates to the technical field of shock-absorbing hub assembly, in particular to an engine crankshaft shock-absorbing hub assembly mould. Background Art

[0002] The crankshaft vibration damping hub, also known as a torsional vibration damper, balance wheel or flywheel, is an important component in the engine. Its main function is to reduce the torsional vibration generated by the engine during operation, thereby improving the stability and life of the engine and enhancing driving comfort. During production, the vibration damping hub needs to be assembled to the engine crankshaft using an assembly mold, replacing the traditional assembly method that relies on manual operation or simple mechanical auxiliary tools, ensuring assembly efficiency and assembly accuracy.

[0003] The current assembly mold does not have the function of limiting the position of the shock-absorbing hub. During the assembly process, the axial position of the shock-absorbing hub cannot be fixed, and it is easy for the shock-absorbing hub to not be accurately positioned at the predetermined position on the crankshaft, making the assembly position of the shock-absorbing hub inaccurate and out of place. The inaccurate assembly position will weaken the shock-absorbing effect of the shock-absorbing hub, making it unable to effectively absorb the vibration generated during engine operation, causing unstable engine operation and affecting the normal operation of the engine. In addition, additional inspection and adjustment are required during each assembly. Manual adjustment and inspection will increase assembly time, reduce production speed, and affect production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an engine crankshaft damping hub assembly die to solve the above-mentioned technical deficiencies.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an engine crankshaft shock-absorbing hub assembly mold, comprising a base plate, the upper end surface of the base plate is symmetrically fixedly connected to two supporting side plates, the upper end surfaces of the two supporting side plates are fixedly connected to a top plate, a positioning component is provided in the groove opened on the upper end surface of the base plate, the positioning component consists of a positioning seat, a socket, a handle, a threaded rod and a clamping block, the positioning seat is fixedly connected to the groove opened on the upper end surface of the base plate, the socket is opened inside the positioning seat, the handle is provided on the outside of the positioning seat, one end of the threaded rod is connected to the handle, and the clamping block is connected to the end of the threaded rod away from the handle through a bearing.

[0006] Preferably, a fixing assembly is provided between the two supporting side plates, and the fixing assembly consists of a supporting plate, a forward and reverse motor, a double-threaded rod, a moving block and a clamping plate. The forward and reverse motor is installed on one side of the outer wall of the supporting plate, the double-threaded rod is connected to the output end of the forward and reverse motor, and the double-threaded rod is arranged in a placement cavity opened in the supporting plate, the moving block is threadedly connected to the outside of the double-threaded rod, and the clamping plate is fixedly connected to the lower end surface of the moving plate (the double-threaded rod is a special type of threaded rod with two independent threaded segments).

[0007] Preferably, a driving assembly is provided on the top plate, and the driving assembly consists of a hydraulic cylinder and a hydraulic telescopic rod. The hydraulic cylinder is installed at the middle position of the upper end surface of the top plate, and the free end of the hydraulic telescopic rod is composed of a bearing plate.

[0008] Specifically, during assembly, first insert the crankshaft into the socket reserved in the positioning seat, then hold the handle and rotate it to drive the threaded rod to rotate, so that the clamping block approaches the crankshaft until it is clamped on the outer wall of the crankshaft, ensuring the stability of the crankshaft and preventing displacement in subsequent operations. Then, take the heated shock-absorbing hub between the two clamping plates, and then drive the double-threaded rod to rotate through the forward and reverse motors to move the clamping plates toward the middle until the shock-absorbing hub is fixed. Then, drive the hydraulic telescopic rod to descend through the hydraulic cylinder, driving the fixing assembly to descend, so that the shock-absorbing hub is sleeved on the outside of the crankshaft, completing the assembly operation of the crankshaft and the shock-absorbing hub.

[0009] Preferably, an adjustable limiting structure is provided at the upper end of the positioning assembly, and the adjustable limiting structure includes a limiting plate provided at the upper end of the positioning seat, and the outer wall of the limiting plate is symmetrically connected to two connecting plates, and a cavity is opened on the inner wall of one of the supporting side plates, and a gear roller is movably connected to the interior of the cavity, and a rack movable plate is engaged with one side of the gear roller, and the rack movable plate is connected to one of the connecting plates away from the side wall of the gear roller.

[0010] Preferably, the other connecting plate is slidingly connected to the other supporting side plate via a sliding mechanism, and one end of the gear roller passes through the supporting side plate and is connected to a connecting end block.

[0011] Through the above technical solution:

[0012] Before assembly, first take the handle tool and insert one end of it into the slot of the connecting end block, then turn the crank handle to drive the gear roller to rotate, at this time the gear roller is engaged with the rack movable plate, and the rack movable plate moves in the cavity, and the position of the limit plate is adjusted to the required assembly position of the shock-absorbing hub (the position of the shock-absorbing hub is based on the contact between its lower end face and the upper end face of the limit plate). The assembly position of the shock-absorbing hub can be limited, so that the axial position of the shock-absorbing hub can be precisely controlled, so that the shock-absorbing hub is accurately positioned at the predetermined position on the crankshaft, ensuring the consistency and accuracy of each assembly, improving the quality of the product, and no additional manual adjustment and inspection are required during each assembly, reducing the assembly time increased due to manual adjustment and inspection, improving production speed, and not affecting production efficiency.

[0013] Preferably, a fixing assembly is provided on the outer side of the supporting side plate provided with a gear roller, and the fixing assembly includes a connecting horizontal bar connected to the outer wall of the rack movable plate, one end of the connecting horizontal bar is connected to a connecting vertical bar through an elastic rod, and the end of the connecting vertical bar away from the connecting horizontal bar is movably connected to a movable bar through a bearing and a rotating rod.

[0014] Specifically, after the position of the limit plate is adjusted, first pull the connecting vertical bar toward the front end, then bend the movable bar to change it from vertical to horizontal, and finally loosen the connecting vertical bar so that the connecting vertical bar and the movable bar are clamped on the outside of the supporting side plate, which can play a fixing role and avoid the displacement of the limit plate due to external interference during the assembly process. In addition, the horizontal movable bar can be adjusted to the vertical to release the fixation.

[0015] Preferably, a cold blowing structure is provided on the limiting plate, and the cold blowing structure includes a box body fixedly connected to the upper end face of the limiting plate, and a plurality of air outlets are fixedly connected to the inner side wall of the box body at equal distances and evenly, and a through cavity is opened on the inner wall of the limiting plate, and the outlet of the through cavity is connected to the cavity of the box body.

[0016] Preferably, the cold air blowing structure also includes an outer cover fixedly connected to the upper end face of the limit plate and close to the side of the connecting plate, a fan is installed inside the outer cover, and a dustproof net is fixedly connected to the inner wall of the inlet of the outer cover, and the air outlet of the outer cover is connected to the inlet of the cavity.

[0017] Through the above technical solution:

[0018] During assembly, the fan in the box body operates to draw air into the box body, which then enters the through cavity, enters the box body through the through cavity, and is finally blown to the assembly position by the air outlet. This operation can blow away the heat generated during the assembly of the crankshaft and the shock-absorbing hub, reduce the thermal stress caused by local temperature rise, and ensure that the assembly position quickly returns to a stable state, avoiding the disadvantages of slight dimensional changes caused by thermal expansion and contraction of materials due to temperature changes, ensuring the stability of the dimensions after assembly, and improving the assembly accuracy.

[0019] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0020] 1. By setting an adjustable limiting structure, the assembly mold has a limiting function. During the assembly process, the axial position of the shock-absorbing hub can be precisely controlled, so that the shock-absorbing hub is accurately positioned at the predetermined position on the crankshaft, ensuring the consistency and accuracy of each assembly, improving product quality, and avoiding the situation where the shock-absorbing effect of the shock-absorbing hub is weakened due to inaccurate position assembly. It ensures that the shock-absorbing hub can fully exert its shock-absorbing effect, ensures the stability of engine operation, and does not affect the normal operation of the engine. In addition, no additional manual adjustment and inspection are required during each assembly, reducing the assembly time increased by manual adjustment and inspection, improving production speed, and not affecting production efficiency.

[0021] 2. By setting up a cold blowing structure, the adjustable limit structure has a cold blowing function. During the assembly process, the heat generated during the assembly of the crankshaft and the shock-absorbing hub can be blown away, reducing the thermal stress caused by local temperature rise, and preventing material deformation or fatigue due to thermal stress. It can also ensure that the assembly position quickly returns to a stable state, avoiding the disadvantages of slight dimensional changes caused by thermal expansion and contraction of materials due to temperature changes, ensuring the stability of the size after assembly, and improving the assembly accuracy. In addition, the assembly position can also be quickly cooled after assembly, shortening the waiting time for cooling and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a cutaway schematic diagram of the present utility model;

[0025] Figure 3 This is a schematic diagram of the adjustable limiting structure of the utility model;

[0026] Figure 4 It is an enlarged schematic diagram of the fixing component of the present utility model;

[0027] Figure 5 This is a schematic diagram of the connection between the cold blowing structure and the limiting plate of the utility model.

[0028] Description of reference numerals:

[0029] 1. Bottom plate; 2. Support side plates; 3. Top plate; 4. Positioning assembly; 5. Adjustable limit structure; 51. Limit plate; 52. Connecting plate; 53. Cavity; 54. Gear roller; 55. Rack movable plate; 56. Connecting end block; 57. Fixing assembly; 571. Connecting horizontal bar; 572. Connecting vertical bar; 573. Movable bar; 6. Driving assembly; 7. Fixing assembly; 8. Cold blowing structure; 81. Box body; 82. Air outlet; 83. Outer cover; 84. Fan; 85. Through cavity. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] The utility model provides Figure 1 and Figure 2 The engine crankshaft vibration damping hub assembly mold shown includes:

[0032] The bottom plate 1 has two supporting side plates 2 symmetrically fixedly connected to its upper end surface, and the upper end surfaces of the two supporting side plates 2 are fixedly connected to a top plate 3. A positioning assembly 4 is provided in the groove opened on the upper end surface of the bottom plate 1. The positioning assembly 4 is composed of a positioning seat, a jack, a handle, a threaded rod and a clamping block. The positioning seat is fixedly connected to the groove opened on the upper end surface of the bottom plate 1, the jack is opened inside the positioning seat, the handle is provided on the outside of the positioning seat, one end of the threaded rod is connected to the handle, and the clamping block is connected to the end of the threaded rod away from the handle through a bearing.

[0033] Further, see Figure 2 As shown, a fixing assembly 7 is provided between the two supporting side plates 2, and the fixing assembly 7 is composed of a bearing plate, a forward and reverse motor, a double-threaded rod, a moving block and a clamping plate. The forward and reverse motor is installed on one side of the outer wall of the bearing plate, the double-threaded rod is connected to the output end of the forward and reverse motor, and the double-threaded rod is arranged in a placement cavity opened in the bearing plate, the moving block is threadedly connected to the outside of the double-threaded rod, and the clamping plate is fixedly connected to the lower end surface of the moving plate (the double-threaded rod is a special type of threaded rod with two independent threaded segments).

[0034] A driving assembly 6 is provided on the top plate 3. The driving assembly 6 consists of a hydraulic cylinder and a hydraulic telescopic rod. The hydraulic cylinder is installed at the middle position of the upper end surface of the top plate 3. The free end of the hydraulic telescopic rod is composed of a bearing plate.

[0035] Specifically, during assembly, first insert the crankshaft into the socket reserved in the positioning seat, then hold the handle and rotate it to drive the threaded rod to rotate, so that the clamping block approaches the crankshaft until it is clamped on the outer wall of the crankshaft, ensuring the stability of the crankshaft and preventing displacement in subsequent operations. Then, take the heated shock-absorbing hub between the two clamping plates, and then drive the double-threaded rod to rotate through the forward and reverse motors to move the clamping plates toward the middle until the shock-absorbing hub is fixed. Then, drive the hydraulic telescopic rod to descend through the hydraulic cylinder, driving the fixing assembly 7 to descend, so that the shock-absorbing hub is mounted on the outside of the crankshaft, completing the assembly operation of the crankshaft and the shock-absorbing hub.

[0036] The utility model provides Figure 2 and Figure 3 An engine crankshaft shock-absorbing hub assembly mold is shown, and an adjustable limiting structure 5 is provided at the upper end of the positioning component 4. The adjustable limiting structure 5 includes a limiting plate 51 arranged at the upper end of the positioning seat, and the outer wall of the limiting plate 51 is symmetrically connected to two connecting plates 52. A cavity 53 is opened on the inner wall of one of the supporting side plates 2, and a gear roller 54 is movably connected inside the cavity 53. A rack movable plate 55 is engaged with one side of the gear roller 54, and the rack movable plate 55 is connected to one of the connecting plates 52 away from the side wall of the gear roller 54.

[0037] The other connecting plate 52 is slidably connected to the other supporting side plate 2 via a sliding mechanism, and one end of the gear roller 54 passes through the supporting side plate 2 and is connected to a connecting end block 56 .

[0038] Through the above technical solution:

[0039] Before assembly, first take the handle tool and insert one end of it into the slot of the connecting end block 56, then turn the crank handle to drive the gear roller 54 to rotate. At this time, the gear roller 54 is engaged with the rack movable plate 55, and the rack movable plate 55 moves in the cavity 53, adjusting the position of the limit plate 51 to the required assembly position of the shock-absorbing hub (the position of the shock-absorbing hub is based on the contact between its lower end face and the upper end face of the limit plate 51). The assembly position of the shock-absorbing hub can be limited, so that the axial position of the shock-absorbing hub can be accurately controlled, so that the shock-absorbing hub is accurately positioned at the predetermined position on the crankshaft, ensuring the consistency and accuracy of each assembly, improving the quality of the product, and no additional manual adjustment and inspection are required during each assembly, reducing the assembly time increased due to manual adjustment and inspection, improving production speed, and not affecting production efficiency.

[0040] Further, see Figure 4As shown, a fixing assembly 57 is provided on the outer side of the supporting side plate 2 provided with a gear roller 54. The fixing assembly 57 includes a connecting horizontal bar 571 connected to the outer wall of the rack movable plate 55. One end of the connecting horizontal bar 571 is connected to a connecting vertical bar 572 through an elastic rod, and the end of the connecting vertical bar 572 away from the connecting horizontal bar 571 is movably connected to a movable bar 573 through a bearing and a rotating rod.

[0041] Specifically, after the position of the limit plate 51 is adjusted, first pull the connecting vertical bar 572 toward the front end, then bend the movable bar 573 to change it from vertical to horizontal, and finally loosen the connecting vertical bar 572 so that the connecting vertical bar 572 and the movable bar 573 are clamped on the outside of the supporting side plate 2, which can play a fixing role and avoid the limit plate 51 from being displaced due to external interference during the assembly process. In addition, adjust the horizontal movable bar 573 to the vertical to release the fixation.

[0042] The utility model provides Figure 3 and Figure 5 An engine crankshaft shock-absorbing hub assembly mold is shown, and a cold blowing structure 8 is provided on the limiting plate 51. The cold blowing structure 8 includes a box body 81 fixedly connected to the upper end face of the limiting plate 51, and a plurality of air outlets 82 are fixedly connected to the inner side wall of the box body 81 at equal intervals and uniformly. A through cavity 85 is opened on the inner wall of the limiting plate 51, and the outlet of the through cavity 85 is connected to the cavity of the box body 81.

[0043] The cold air blowing structure 8 also includes an outer cover 83 fixedly connected to the upper end surface of the limiting plate 51 and close to the side of the connecting plate 52. A fan 84 is installed inside the outer cover 83, and a dustproof net is fixedly connected to the inner wall of the inlet of the outer cover 83. The air outlet of the outer cover 83 is connected to the inlet of the through cavity 85.

[0044] Through the above technical solution:

[0045] During assembly, the fan 84 in the box body 81 runs to draw air into the box body 81, and then into the through cavity 85, and into the box body 81 through the through cavity 85, and finally blown to the assembly position by the air outlet 82. This operation can blow away the heat generated during the assembly of the crankshaft and the shock-absorbing hub, reduce the thermal stress caused by local temperature rise, and ensure that the assembly position quickly returns to a stable state, avoiding the disadvantages of slight dimensional changes caused by thermal expansion and contraction of materials due to temperature changes, ensuring the stability of the dimensions after assembly, and improving the assembly accuracy.

[0046] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An engine crankshaft damping hub assembly mold, characterized in that: include: A bottom plate (1), the upper end surface of the bottom plate (1) is symmetrically fixedly connected to two supporting side plates (2), the upper end surfaces of the two supporting side plates (2) are fixedly connected to a top plate (3), a positioning assembly (4) is provided in a groove provided on the upper end surface of the bottom plate (1), the positioning assembly (4) is composed of a positioning seat, a socket, a handle, a threaded rod and a clamping block, and an upper end of the positioning assembly (4) is provided with an adjustable limiting structure (5); The adjustable limiting structure (5) includes a limiting plate (51) arranged at the upper end of the positioning seat, and the outer wall of the limiting plate (51) is symmetrically connected to two connecting plates (52), and the inner wall of one of the supporting side plates (2) is provided with a cavity (53), and the interior of the cavity (53) is movably connected to a gear roller (54), and a rack movable plate (55) is engaged on one side of the gear roller (54), and the rack movable plate (55) is connected to one of the connecting plates (52) away from the side wall of the gear roller (54).

2. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: The other connecting plate (52) is slidably connected to the other supporting side plate (2) through a sliding mechanism, and one end of the gear roller (54) passes through the supporting side plate (2) and is connected to a connecting end block (56).

3. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: A clamping assembly (57) is provided on the outer side of the supporting side plate (2) provided with a gear roller (54), and the clamping assembly (57) includes a connecting horizontal bar (571) connected to the outer wall of the rack movable plate (55), one end of the connecting horizontal bar (571) is connected to a connecting vertical bar (572) through an elastic rod, and one end of the connecting vertical bar (572) away from the connecting horizontal bar (571) is movably connected to a movable bar (573) through a bearing and a rotating rod.

4. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: A fixing assembly (7) is provided between the two supporting side plates (2), and the fixing assembly (7) is composed of a bearing plate, a forward and reverse motor, a double-threaded rod, a moving block and a clamping plate. The forward and reverse motor is installed on one side of the outer wall of the bearing plate, the double-threaded rod is connected to the output end of the forward and reverse motor, and the double-threaded rod is provided in a placement cavity opened on the bearing plate, the moving block is threadedly connected to the outside of the double-threaded rod, and the clamping plate is fixedly connected to the lower end surface of the moving plate.

5. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: A driving assembly (6) is provided on the top plate (3), and the driving assembly (6) is composed of a hydraulic cylinder and a hydraulic telescopic rod. The hydraulic cylinder is installed at the middle position of the upper end surface of the top plate (3), and the free end of the hydraulic telescopic rod is composed of a bearing plate.

6. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: The limiting plate (51) is provided with a cold air blowing structure (8), and the cold air blowing structure (8) includes a box body (81) fixedly connected to the upper end surface of the limiting plate (51), and the inner side wall of the box body (81) is fixedly connected with multiple air outlets (82) at equal distances and evenly, and the inner wall of the limiting plate (51) is provided with a through cavity (85), and the outlet of the through cavity (85) is connected to the cavity of the box body (81).

7. The engine crankshaft damping hub assembly mold according to claim 6, characterized in that: The cold air blowing structure (8) further comprises an outer cover (83) fixedly connected to the upper end surface of the limiting plate (51) and close to one side of the connecting plate (52); a fan (84) is installed inside the outer cover (83); and a dustproof net is fixedly connected to the inner wall of the inlet of the outer cover (83); and the air outlet of the outer cover (83) is connected to the inlet of the through cavity (85).

8. The engine crankshaft damping hub assembly mold according to claim 1, characterized in that: The positioning seat is fixedly connected to a groove formed on the upper end surface of the base plate (1); the jack is formed inside the positioning seat; the handle is provided outside the positioning seat; one end of the threaded rod is connected to the handle; and the clamping block is connected to the end of the threaded rod away from the handle via a bearing.

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