An engine piston hanger

Abstract

The utility model discloses an engine piston lifting appliance belongs to engine assembly technical field, solved when assembling the piston, usually is the mode of manual handling piston, and the problem of lower efficiency. The engine piston lifting appliance, including the fixed cylinder of hollow structure, the top of fixed cylinder is equipped with the adjusting board, the bottom of fixed cylinder is equipped with the first limit board, the bottom of first limit board is equipped with fixed block, be equipped with annular sink that penetrates fixed block on fixed block, still be equipped with a plurality of first sink that is circularly equidistance arrangement on the fixed block of annular sink periphery, and first sink's one end extend to with annular sink intercommunication, second sink is equipped with the other end of first sink, one end of second sink extends to the circumference of fixed cylinder, the first sink is slidably inserted with the compression rod in. The utility model discloses an engine piston lifting appliance, effectively improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of engine assembly technology, and more specifically, to an engine piston hanger. Background Technology

[0002] Piston installation is a critical step in engine assembly, especially for heavy equipment such as large diesel engines, marine engines, and construction machinery engines. The pistons are heavy (may exceed 100kg), making manual handling and assembly difficult, resulting in low work efficiency and easy damage to the piston, piston rings, or cylinder walls. Furthermore, manual handling of pistons is physically demanding for workers. Utility Model Content

[0003] The technical problem to be solved by this utility model is to address the above-mentioned shortcomings of the prior art by providing an engine piston lifting tool that can quickly lift the piston to the required position without damaging it, effectively improving work efficiency and reducing the labor intensity of workers.

[0004] The technical solution of this utility model is as follows: an engine piston hanger includes a hollow fixed cylinder. The top of the fixed cylinder is provided with an adjusting plate, and the bottom of the fixed cylinder is provided with a first limiting plate. A fixing block is provided at the bottom of the first limiting plate. An annular groove penetrating the fixing block is provided on the fixing block. Multiple first grooves arranged circumferentially at equal intervals are also provided on the fixing block surrounding the annular groove. One end of each first groove communicates with the annular groove, and the other end of each first groove is provided with a second groove. One end of the second groove extends to the circumferential surface of the fixing block. A clamping rod is slidably inserted into the settling tank. One end of the clamping rod is provided with a clamping block adapted to the second settling tank, and the clamping block is slidably inserted into the second settling tank. An adjusting screw is movably inserted into the fixed cylinder. The adjusting screw is threadedly connected to an adjusting plate. The top of the adjusting screw is provided with a lifting ring. The bottom of the adjusting screw extends to the upper end face of the fixed block, and the bottom of the adjusting screw is provided with an adjusting rod. The diameter of the middle part of the adjusting rod gradually increases from top to bottom, and the end face of the other end of the clamping rod contacts the circumferential surface of the adjusting rod. The bottom of the fixed block is detachably provided with a cover plate.

[0005] As a further improvement, the clamping rod is a cylinder, and the end face of the other end of the clamping rod is a spherical surface.

[0006] Furthermore, the outer wall of the adjusting plate is provided with two handles, which are symmetrically distributed on both sides of the adjusting plate about the axis of the fixed cylinder.

[0007] Furthermore, the bottom of the fixing block is detachably provided with a cover plate, and the cover plate is provided with a first clearance hole.

[0008] Furthermore, the fixing block is cylindrical, and the centerlines of the adjusting screw, fixing block, annular groove, adjusting rod, and first clearance hole coincide.

[0009] Furthermore, a stepped surface is formed at the junction of the first settling tank and the second settling tank, and an annular limiting plate is provided on the outer wall of the clamping rod. A return spring is sleeved on the clamping rod between the stepped surface and the annular limiting plate.

[0010] Furthermore, the upper surface of the cover plate is provided with a plurality of second limiting plates arranged at equal intervals in a circle. When the cover plate is installed at the bottom of the fixing block, the plurality of the second limiting plates are inserted into the plurality of second sink grooves one by one.

[0011] Furthermore, one end face of the clamping block is provided with an arc-shaped surface that adapts to the inner wall surface of the piston bore.

[0012] Furthermore, one end of the clamping block is provided with a second clearance hole.

[0013] Beneficial effects

[0014] Compared with the prior art, this utility model has the following advantages:

[0015] 1. This utility model discloses an engine piston lifting tool. The tooling has a simple structure and is easy to operate. By turning the adjusting screw, the clamping block is pressed against the inner wall of the corresponding hole in the piston, thereby completing the connection between the tooling and the piston. Then, it is connected to the lifting device such as an overhead crane through the lifting ring to achieve the purpose of lifting the piston. It can quickly lift the piston to the required position and effectively improve work efficiency.

[0016] 2. The engine piston hanger of this utility model, through the cooperation of the first limiting plate on the top of the cover plate and the clamping block, can prevent the clamping rod from impacting the adjusting rod under the action of inertia when the clamping rod is reset under the action of the return spring, thus effectively extending the service life. Attached Figure Description

[0017] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the first annular groove in this utility model;

[0020] Figure 4 This is a schematic diagram of the front cross-sectional structure of this utility model;

[0021] Figure 5This is a three-dimensional structural diagram of the clamping rod and clamping block in this utility model;

[0022] Figure 6 This is a top view of the cover plate in this utility model.

[0023] Figure 7 A cross-sectional structural diagram of this utility model in use.

[0024] Wherein: 1-fixed cylinder, 2-adjusting screw, 3-first limiting plate, 4-adjusting plate, 5-fixing block, 6-lifting ring, 7-annular sinker, 8-first sinker, 9-second sinker, 10-pressing rod, 11-pressing block, 12-adjusting rod, 13-handle, 14-cover plate, 15-first clearance hole, 16-second limiting plate, 17-arc surface, 18-annular limiting plate, 19-step surface, 20-reset spring, 21-second clearance hole, 22-piston. Detailed Implementation

[0025] The present invention will be further described below with reference to specific embodiments shown in the accompanying drawings.

[0026] See Figure 1-6 An engine piston hanger includes a hollow fixed cylinder 1. The top of the fixed cylinder 1 is provided with an adjusting plate 4, and the bottom of the fixed cylinder 1 is provided with a first limiting plate 3. A fixing block 5 is provided at the bottom of the first limiting plate 3. An annular groove 7 penetrates the fixing block 5. Multiple first grooves 8 arranged circumferentially at equal intervals are also provided on the fixing block 5 surrounding the annular groove 7. One end of each first groove 8 communicates with the annular groove 7, and the other end of each first groove 8 is provided with a second groove 9. One end of the second groove 9 extends to the circumferential surface of the fixing block 5. A clamping rod 10 is slidably inserted into the first groove 8, and one end of the clamping rod 10 is provided with… A clamping block 11 is adapted to the second settling tank 9, and the clamping block 11 is slidably inserted into the second settling tank 9. An adjusting screw 2 is movably inserted into the fixed cylinder 1. The adjusting screw 2 is threadedly connected to the adjusting plate 4. A lifting ring 6 is provided at the top of the adjusting screw 2. The bottom of the adjusting screw 2 extends to the upper end face of the fixed block 5. An adjusting rod 12 is provided at the bottom of the adjusting screw 2. The diameter of the middle part of the adjusting rod 12 gradually increases from top to bottom. The end face of the other end of the clamping rod 10 contacts the circumferential surface of the adjusting rod 12. A cover plate 14 is detachably provided at the bottom of the fixed block 5. The cover plate 14 is fixedly installed on the fixed block 5 by bolt connection.

[0027] In use, the fixing block 5 is placed into the corresponding hole of the piston 22, so that the bottom surface of the first limiting plate 3 is in contact with the top surface of the piston 22. Then, the adjusting screw 2 is turned to move the adjusting screw 2 upward, thereby driving the adjusting rod 12 to move upward. As the adjusting rod 12 moves upward, the clamping rod 10, which is in contact with the circumferential surface of the adjusting rod 12, moves along the direction of the first countersunk groove 8 toward the circumferential surface of the fixing block 5, thereby driving the clamping block 11 to move until the side of the clamping block 11 is in contact with the inner wall of the corresponding hole of the piston 22. The surfaces of the tooling are pressed together, thus connecting the tooling to the piston 22. Then, it is connected to a crane or other lifting device via the lifting ring 6 to achieve the purpose of hoisting the piston 22. The tooling has a simple structure and is easy to operate. By turning the adjusting screw 2, the clamping block 11 is pressed against the inner wall surface of the corresponding hole in the piston 22, thus connecting the tooling to the piston 22. Then, it is connected to a crane or other lifting device via the lifting ring 6 to achieve the purpose of hoisting the piston 22. It can quickly hoist the piston 22 to the required position and effectively improve work efficiency.

[0028] In this embodiment, the clamping rod 10 is a cylinder, the first recess 8 is adapted to the clamping rod 10, and the depth and width of the first recess 8 are both greater than the diameter of the clamping rod 10. There is a gap between the clamping rod 10 and the first recess 8. The end face of the other end of the clamping rod 10 is a spherical surface, which reduces the frictional loss between the clamping rod 10 and the adjusting rod 12 and effectively extends its service life.

[0029] In this embodiment, two handles 13 are provided on the outer wall of the adjusting plate 4, which makes it convenient for workers to pick up the tooling through the handles 13; the two handles 13 are symmetrically distributed on both sides of the adjusting plate 4 with the axis of the fixed cylinder 1. During the hoisting of the piston 22, the two handles symmetrically distributed on both sides of the adjusting plate 4 can play a balancing role.

[0030] In this embodiment, the cover plate 14 is provided with a first clearance hole 15. The diameter of the first clearance hole 15 is larger than the maximum diameter of the adjusting rod 12, so as to avoid positional interference between the adjusting rod 12 and the cover plate 14 when the adjusting screw 2 is turned to move the adjusting rod 12 up and down.

[0031] In this embodiment, the fixing block 5 is cylindrical, and the centerlines of the adjusting screw 2, the fixing block 5, the annular groove 7, the adjusting rod 12, and the first clearance hole 15 coincide. This avoids the adjusting rod 12 from becoming eccentric when the adjusting screw 2 is turned to move the adjusting rod 12 up and down. At the same time, it ensures that when the fixing block 5 is located in the hole of the piston 22, the distance from each pressing block 11 on the circumferential surface of the fixing block 5 to the inner wall of its hole is equal, avoiding the situation where the end face of some pressing blocks 11 does not press against the inner wall of the corresponding hole of the piston 22 or is pressed excessively.

[0032] In this embodiment, a stepped surface 19 is formed at the junction of the first sink 8 and the second sink 9. An annular limiting plate 18 is provided on the outer wall of the clamping rod 10. A return spring 20 is sleeved on the clamping rod 10 between the stepped surface 19 and the annular limiting plate 18. One end of the return spring 20 is connected to the stepped surface 19, and the other end of the return spring 20 is connected to the annular limiting plate 18. During the hoisting of the piston 22, the return spring 22 is in a compressed state. After the hoisting is completed, the adjusting screw 2 is turned to move it downward. The adjusting rod 12 moves downward with the turning of the adjusting screw 2. The clamping rod 11 loses the pressure of the adjusting rod 12, and the clamping rod 11 retracts under the action of the return spring 20, which facilitates the next hoisting of the piston 22.

[0033] In this embodiment, the upper end face of the cover plate 14 is provided with a plurality of second limiting plates 16 arranged in a circumferentially spaced manner. After the cover plate 14 is installed at the bottom of the fixing block 5, the plurality of second limiting plates 16 are inserted into the plurality of second recesses 9 one by one. When the pressing rod 11 retracts to its original position under the action of the return spring 20, and the pressing block 11 retracts into the second recess 9, the end face of the pressing block 11 contacts the side of the corresponding second limiting plate 16, thereby limiting the movement of the pressing block 11. This can prevent the pressing rod 11 from impacting the adjusting rod 12 under the action of inertia, and effectively extend the service life of the device.

[0034] In this embodiment, one end face of the clamping block 11 is provided with an arc-shaped surface 17 that is adapted to the inner wall surface of the piston's inner hole, so as to avoid damage to the inner wall surface of the clamping block 11 and the piston 22's hole during the hoisting process.

[0035] Preferably, a rubber pad can be provided on the arc-shaped surface 17 to effectively prevent damage to the piston 22 during hoisting.

[0036] In this embodiment, a second clearance hole 21 is provided at one end of the clamping block 11 to avoid positional interference with other components during the mutual compression of the clamping block 11 and the piston 22.

[0037] 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 piston hanger characterized by, The device includes a hollow fixed cylinder (1), with an adjusting plate (4) at the top and a first limiting plate (3) at the bottom. A fixing block (5) is located at the bottom of the first limiting plate (3). An annular groove (7) runs through the fixing block (5). Multiple first grooves (8) are arranged circumferentially at equal intervals on the fixing block (5) surrounding the annular groove (7). One end of each first groove (8) communicates with the annular groove (7), and the other end of each first groove (8) has a second groove (9). One end of the second groove (9) extends to the circumferential surface of the fixing block (5). A clamping rod (10) is slidably inserted into each first groove (8). One end of the clamping rod (10) is provided with a clamping block (11) adapted to the second sink (9), and the clamping block (11) is slidably inserted into the second sink (9). An adjusting screw (2) is movably inserted into the fixed cylinder (1). The adjusting screw (2) is threadedly connected to the adjusting plate (4). The top of the adjusting screw (2) is provided with a lifting ring (6). The bottom of the adjusting screw (2) extends to the upper end face of the fixed block (5). An adjusting rod (12) is provided at the bottom of the adjusting screw (2). The diameter of the middle part of the adjusting rod (12) gradually increases from top to bottom. The end face of the other end of the clamping rod (10) contacts the circumferential surface of the adjusting rod (12). The bottom of the fixed block (5) is detachably provided with a cover plate (14).

2. An engine piston hanger as claimed in claim 1, characterized in that The clamping rod (10) is a cylinder, and the end face of the other end of the clamping rod (10) is a spherical surface.

3. An engine piston hanger as in claim 1, wherein, Two handles (13) are provided on the outer wall of the adjustment plate (4). The two handles (13) are symmetrically distributed on both sides of the adjustment plate (4) with respect to the axis of the fixed cylinder (1).

4. An engine piston hanger as in claim 1 wherein, The cover plate (14) is provided with a first clearance hole (15).

5. An engine piston hanger as claimed in claim 4, wherein, The fixing block (5) is cylindrical, and the center lines of the adjusting screw (2), fixing block (5), annular groove (7), adjusting rod (12), and first clearance hole (15) coincide.

6. An engine piston hanger as in claim 1, wherein, A stepped surface (19) is formed at the junction of the first sink (8) and the second sink (9). An annular limiting plate (18) is provided on the outer wall of the clamping rod (10). A return spring (20) is sleeved on the clamping rod (10) between the stepped surface (19) and the annular limiting plate (18).

7. An engine piston hanger as in claim 1 wherein, The upper surface of the cover plate (14) is provided with a plurality of second limiting plates (16) arranged in a circumferentially spaced manner. After the cover plate (14) is installed at the bottom of the fixing block (5), the plurality of the second limiting plates (16) are inserted into the plurality of second sinks (9) one by one.

8. An engine piston hanger as in claim 1 wherein, The end face of one end of the clamping block (11) is provided with an arc-shaped surface (17) that is adapted to the inner wall surface of the piston bore.

9. An engine piston hanger as in claim 1 wherein, One end of the clamping block (11) is provided with a second clearance hole (21).

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