Lifting appliance for dismounting and mounting oil cylinder

Abstract

The invention provides a lifting appliance for dismounting and mounting an oil cylinder, belongs to the technical field of lifting appliances, and solves the technical problems that the lifting appliance is connected and assembled through a plurality of bolts, so that more time needs to be consumed in the assembling process, and the overall working efficiency is low. A lifting appliance for dismounting and mounting an oil cylinder comprises a first clamp, a second clamp is arranged on one side of the first clamp and matched with the first clamp, the first clamp and the second clamp are symmetrically arranged, and one side of the first clamp and one side of the second clamp are slidably connected with two locking blocks; and locking mechanisms used for locking the second limiting plates are arranged in the two second storage grooves correspondingly, the same bolt is slidably connected to one side of the first clamp and one side of the second clamp, and a restraining mechanism used for restraining the bolt is arranged on the surface of the side, close to the first limiting groove, of the bolt. And the situation that a large amount of time is spent on assembling the lifting appliance can be avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of lifting tools, relates to the removal and installation of oil cylinders, and in particular to a lifting tool for the removal and installation of oil cylinders. Background Art

[0002] A lifting tool for the removal and installation of oil cylinders is an auxiliary device specifically used in the process of removing and installing oil cylinders. The design of this lifting tool aims to improve the safety and efficiency of operations, reduce the difficulty of manual operations, and ensure the stability of the oil cylinder during movement and positioning. As a key component in the hydraulic system, the disassembly and assembly of oil cylinders often involve a large weight and complex environments. During this process, the use of a lifting tool can effectively avoid accidents and damages caused by improper operations. The lifting tool is generally made of high-strength materials and has good load-bearing capacity to meet various working requirements. The lifting tool for the removal and installation of oil cylinders is a powerful tool for ensuring the maintenance and repair of hydraulic systems. It not only improves the safety and efficiency of operations but also provides important support for the daily work of technicians, reflecting the dual pursuit of safety and efficiency in modern mechanical maintenance.

[0003] However, when some existing lifting tools for the removal and installation of oil cylinders are in use, most of them need to be assembled on-site. Since the lifting tool is assembled by connecting multiple bolts, it takes a relatively long time during the assembly process, resulting in a relatively low overall working efficiency. Therefore, this problem needs to be solved. Summary of the Invention

[0004] The purpose of the present invention is to address the above problems existing in the prior art and propose a lifting tool for the removal and installation of oil cylinders. The technical problem to be solved by this invention is that the lifting tool is assembled by connecting multiple bolts, so it takes a relatively long time during the assembly process, resulting in a relatively low overall working efficiency.

[0005] The purpose of the present invention can be achieved by the following technical solutions: A lifting tool for the removal and installation of oil cylinders includes a first clamp. A second clamp is provided on one side of the first clamp, and the second clamp is arranged in cooperation with the first clamp. The first clamp and the second clamp are symmetrically arranged. Two locking blocks are slidably connected to one side of the first clamp and the second clamp. Two first limiting grooves are formed on one side of each of the two locking blocks. Two second limiting plates are symmetrically and slidably connected inside each of the two first limiting grooves. A moving mechanism for moving the second limiting plates is provided on the surface of each of the two second limiting plates away from the locking blocks. Two second receiving grooves are symmetrically formed on the surface of each of the two locking blocks close to the first limiting grooves. A locking mechanism for locking the second limiting plates is provided inside each of the two second receiving grooves. The same bolt is slidably connected to one side of the first clamp and the second clamp. A constraining mechanism for constraining the bolt is provided on the surface of the bolt close to the first limiting groove.

[0006] The main working principle of the present invention is as follows: on the surfaces of the adjusting plate close to the lock block and the bolt respectively, a second limiting plate and a first limiting plate are fixedly connected. Moreover, the second limiting plate and the first limiting plate are still in cooperation with the lock block and the bolt. On the surfaces of the lock block and the bolt close to the second limiting plate and the first limiting plate respectively, a first limiting groove and a second limiting groove are formed. Thus, when the bidirectional lead screw drives the two adjusting plates to approach each other, the second limiting plate and the first limiting plate will enter into the first limiting groove and the second limiting groove respectively, so as to achieve the purpose of restricting and fixing the first fixture and the second fixture.

[0007] The moving mechanism includes two sliding grooves, which are symmetrically formed on one side of the second fixture. Two bidirectional lead screws are rotatably connected inside the two sliding grooves. The same adjusting plate is fixedly connected to the surfaces of the two second limiting plates far away from the lock block. On the surfaces of the adjusting plate close to the two bidirectional lead screws respectively, a sliding plate is fixedly connected. And the two sliding plates are both slidably connected inside the sliding grooves. On the surfaces of the two sliding plates close to the bidirectional lead screws respectively, a lead screw nut is arranged, and the lead screw nut is arranged in cooperation with the bidirectional lead screw. On one side of the two sliding grooves, a connecting mechanism for connecting the bidirectional lead screws is provided.

[0008] With the above structure, the two second limiting plates can be made to approach each other.

[0009] The connecting mechanism includes a first receiving groove, which is formed between the two sliding grooves. Synchronous wheels are sleeved on the surfaces of the two bidirectional lead screws close to the first receiving groove. The same synchronous belt is sleeved on the surfaces of the two synchronous wheels. A plurality of adjusting rollers are rotatably connected inside the first receiving groove, and the plurality of adjusting rollers are all arranged in cooperation with the synchronous belt. Adjusting blocks are fixedly connected to both ends of one of the bidirectional lead screws.

[0010] With the above structure, it can be ensured that the two bidirectional lead screws can rotate synchronously.

[0011] The locking mechanism includes a lock post, which is slidably connected to one side inside the second receiving groove. A lock hole is formed on the surface of the second limiting plate close to the lock post. The lock post is slidably connected inside the lock hole. A pull plate is fixedly connected to the end of the lock post far away from the second limiting plate. A tension spring is sleeved on the surface of the lock post close to the second receiving groove. One end of the tension spring is fixedly connected to one side of the pull plate, and the other end of the tension spring is fixedly connected to one side inside the second receiving groove.

[0012] With the above structure, the second limiting plate can be locked to avoid loosening.

[0013] The constraint mechanism includes a second limiting groove which is opened on one side of the bolt. Two first limiting plates are symmetrically and slidably connected inside the second limiting groove, and both of the two first limiting plates are fixedly connected to one side of the adjusting plate. A nut is sleeved on the surface of the bolt close to the second limiting groove.

[0014] With the above structure, the bolt can be fixed to ensure its normal operation.

[0015] Compared with the prior art, a lifting tool for removing and installing an oil cylinder of the present invention has the following advantages: Since the present invention adopts the technical solution of quickly fixing the lock block and the bolt through the limiting plate, it is possible to avoid spending a lot of time assembling the lifting tool, so as to achieve the purpose of quickly assembling the lifting tool, thus effectively solving the problem that most lifting tools need to be assembled on site. Because the lifting tool is connected and assembled by a plurality of bolts, it takes a lot of time in the assembling process, resulting in a low overall working efficiency. The adjusting plate is fixedly connected with a second limiting plate and a first limiting plate on the surfaces close to the lock block and the bolt respectively, and the second limiting plate and the first limiting plate also cooperate with the lock block and the bolt. The lock block and the bolt are respectively provided with a first limiting groove and a second limiting groove on the surfaces close to the second limiting plate and the first limiting plate. Thus, when the bidirectional lead screw drives the two adjusting plates to approach each other, the second limiting plate and the first limiting plate will enter the first limiting groove and the second limiting groove respectively, so as to achieve the purpose of restraining and fixing the first fixture and the second fixture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall structural schematic diagram of a lifting tool for removing and installing an oil cylinder of the present invention; Figure 2 is the side view structural schematic diagram of a lifting tool for removing and installing an oil cylinder of the present invention; Figure 3 is Figure 2 the enlarged structural schematic diagram at A in Figure 4 is Figure 2 the enlarged structural schematic diagram at B in Figure 5 is the schematic diagram of the moving mechanism of a lifting tool for removing and installing an oil cylinder of the present invention; Figure 6 is the schematic diagram of the constraint mechanism of a lifting tool for removing and installing an oil cylinder of the present invention; Figure 7 is the schematic diagram of the locking mechanism of a lifting tool for removing and installing an oil cylinder of the present invention; Figure 8 is Figure 7 the enlarged structural schematic diagram at C in

[0017] In the figure: 1. First fixture; 2. Second fixture; 3. Adjusting plate; 4. Lock block; 5. Pulling plate; 201. Sliding groove; 202. First storage groove; 203. Bi-directional lead screw; 204. Synchronous pulley; 205. Adjusting block; 206. Synchronous belt; 207. Adjusting roller; 301. First limiting plate; 302. Second limiting plate; 303. Lock hole; 304. Slide plate; 305. Lead screw nut; 401. First limiting groove; 402. Second storage groove; 403. Bolt; 404. Second limiting groove; 405. Nut; 501. Lock post; 502. Tension spring. Detailed implementation mode

[0018] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described, but the present invention is not limited to these embodiments.

[0019] As Figure 1 - Figure 8 As shown, a hoist for removing and installing an oil cylinder includes a first fixture 1. A second fixture 2 is arranged on one side of the first fixture 1, and the second fixture 2 is arranged in cooperation with the first fixture 1. The first fixture 1 and the second fixture 2 are symmetrically arranged. Two lock blocks 4 are slidably connected to one side of the first fixture 1 and the second fixture 2. Two first limiting grooves 401 are opened on one side of each of the two lock blocks 4. Two second limiting plates 302 are symmetrically and slidably connected inside each of the two first limiting grooves 401. A moving mechanism for moving the second limiting plate 302 is provided on the surface of each of the two second limiting plates 302 away from the lock block 4. Two second storage grooves 402 are symmetrically opened on the surface of each of the two lock blocks 4 close to the first limiting groove 401. A locking mechanism for locking the second limiting plate 302 is provided inside each of the two second storage grooves 402. The first fixture 1 and the second fixture 2 are slidably connected to the same bolt 403. The arrangements of the lock block 4 and the bolt 403 can quickly connect and fix the first fixture 1, the second fixture 2 and the oil cylinder. A constraint mechanism for constraining the bolt 403 is provided on the surface of the bolt 403 close to the first limiting groove 401. Through the arrangement of the second limiting plate 302, it is possible to avoid spending a lot of time assembling the hoist, so as to achieve the purpose of quickly assembling the hoist.

[0020] Preferably, the moving mechanism includes two sliding grooves 201 symmetrically arranged on one side of the second fixture 2. Two bidirectional lead screws 203 are rotatably connected inside the two sliding grooves 201. A same adjusting plate 3 is fixedly connected to the surfaces of the two second limiting plates 302 far away from the surface of the locking block 4. Sliding plates 304 are fixedly connected to one side surfaces of the adjusting plate 3 close to the two bidirectional lead screws 203. And the two sliding plates 304 are both slidably connected inside the sliding grooves 201. Screw nuts 305 are arranged on one side surfaces of the two sliding plates 304 close to the bidirectional lead screws 203. Through the arrangement of the screw nuts 305, it can be ensured that the bidirectional lead screws 203 can drive the adjusting plate 3 to move, and the screw nuts 305 are arranged in cooperation with the bidirectional lead screws 203. Connecting mechanisms are arranged on one side of each of the two sliding grooves 201 for connecting the bidirectional lead screws 203. Through the arrangement of the bidirectional lead screws 203, it can be made that the adjusting plate 3 drives the sliding plates 304 to move.

[0021] Further, the connecting mechanism includes a first receiving groove 202 opened between the two sliding grooves 201. Synchronous wheels 204 are sleeved on one side surfaces of the two bidirectional lead screws 203 close to the first receiving groove 202. A same synchronous belt 206 is sleeved on the surfaces of the two synchronous wheels 204. A plurality of adjusting rollers 207 are rotatably connected inside the first receiving groove 202. Through the arrangement of the adjusting rollers 207, it can be ensured that the synchronous belt 206 can stably operate inside the second fixture 2, and the plurality of adjusting rollers 207 are all arranged in cooperation with the synchronous belt 206. Adjusting blocks 205 are fixedly connected to both ends of one of the bidirectional lead screws 203. Through the arrangement of the synchronous belt 206, it can be ensured that the two bidirectional lead screws 203 can rotate synchronously.

[0022] Preferably, the locking mechanism includes a locking post 501 slidably connected to one side inside the second receiving groove 402. A locking hole 303 is opened on one side surface of the second limiting plate 302 close to the locking post 501. The locking post 501 is slidably connected inside the locking hole 303. A pull plate 5 is fixedly connected to the end of the locking post 501 far away from the second limiting plate 302. A tension spring 502 is sleeved on one side surface of the locking post 501 close to the second receiving groove 402. Through the arrangement of the tension spring 502, the locking post 501 can be reset, so as to ensure that it can cooperate with the second limiting plate 302. One end of the tension spring 502 is fixedly connected to one side of the pull plate 5, and the other end of the tension spring 502 is fixedly connected to one side inside the second receiving groove 402. Through the arrangement of the locking post 501, the second limiting plate 302 can be locked to avoid the phenomenon of loosening.

[0023] Preferably, the constraint mechanism includes a second limiting groove 404 which is opened on one side of the bolt 403. Two first limiting plates 301 are symmetrically and slidably connected inside the second limiting groove 404. Both of the two first limiting plates 301 are fixedly connected to one side of the adjusting plate 3. A nut 405 is sleeved on the surface of the bolt 403 close to the second limiting groove 404. Through the arrangement of the first limiting plate 301, the bolt 403 can be constrained to achieve the purpose of quick fixation.

[0024] Working principle of the present invention: When in use, first, the first fixture 1 and the second fixture 2 are sleeved on the surface of the oil cylinder to be disassembled and installed. After the sleeving is completed, the lock block 4 and the bolt 403 are inserted into one side of the first fixture 1 and the second fixture 2. After the insertion of the lock block 4 and the bolt 403 is completed, the adjusting block 205 on one side of the bidirectional lead screw 203 can be rotated, so that the bidirectional lead screw 203 can rotate. There are two bidirectional lead screws 203 installed on one side of the second fixture 2, and the two bidirectional lead screws 203 are connected by a synchronous pulley 204. Therefore, when one of the bidirectional lead screws 203 rotates, the other bidirectional lead screw 203 will also rotate synchronously. Two sliding plates 304 are symmetrically sleeved on the surfaces of the two bidirectional lead screws 203, and the two sliding plates 304 are both matched with the bidirectional lead screw 203 through a lead screw nut 305. Therefore, when the bidirectional lead screw 203 rotates, the two sliding plates 304 will approach each other. Adjusting plates 3 are fixedly connected to one side of the two sliding plates 304, and a second limiting plate 302 and a first limiting plate 301 are respectively fixedly connected to the surface of the adjusting plate 3 close to the lock block 4 and the bolt 403, and the second limiting plate 302 and the first limiting plate 301 are also matched with the lock block 4 and the bolt 403. First limiting grooves 401 and second limiting grooves 404 are respectively formed on the surfaces of the lock block 4 and the bolt 403 close to the second limiting plate 302 and the first limiting plate 301. Therefore, when the bidirectional lead screw 203 drives the two adjusting plates 3 to approach each other, the second limiting plate 302 and the first limiting plate 301 will enter the first limiting groove 401 and the second limiting groove 404 respectively. Because the first limiting groove 401 and the second limiting groove 404 and the symmetric sides of the second limiting plate 302 and the first limiting plate 301 are all inclined, when the second limiting plate 302 and the first limiting plate 301 enter the first limiting groove 401 and the second limiting groove 404, the second limiting plate 302 and the first limiting plate 301 will squeeze the lock block 4 and the bolt 403, so that the second fixture 2 can be more tightly connected to the first fixture 1. A lock post 501 is also installed inside the two lock blocks 4, and the lock post 501 initially protrudes from the first limiting groove 401. Because one end of the second limiting plate 302 is inclined, when the second limiting plate 302 enters the first limiting groove 401, it will squeeze the lock post 501, so that it shrinks. A lock hole 303 is formed on the side of the second limiting plate 302 close to the lock post 501, and the lock hole 303 is adapted to the lock post 501. A tension spring 502 is installed at one end of the lock post 501, and the tension spring 502 is connected to the lock block 4. Therefore, after the second limiting plate 302 moves in place, the tension spring 502 will drive the lock post 501 to reset, so that it can enter the lock hole 303, so as to achieve the purpose of restraining and fixing the second limiting plate 302 to prevent it from loosening. When the second limiting plate 302 and the first limiting plate 301 move in place,The nut 405 can be connected to the bolt 403.

[0025] In summary, in the present invention, the core beneficial effect is the technical solution of quickly fixing the lock block and the bolt through the limiting plate. Therefore, it is possible to avoid spending a large amount of time assembling the lifting tool, thereby achieving the purpose of quickly assembling the lifting tool, and effectively solving the problem that most lifting tools need to be assembled on site. Since the lifting tool is assembled by connecting multiple bolts, it takes a lot of time during the assembly process, resulting in a low overall working efficiency. The adjusting plate is fixedly connected with a second limiting plate and a first limiting plate on the surfaces close to the lock block and the bolt respectively, and the second limiting plate and the first limiting plate still cooperate with the lock block and the bolt. The lock block and the bolt are respectively provided with a first limiting groove and a second limiting groove on the surfaces close to the second limiting plate and the first limiting plate. Thus, when the bidirectional lead screw drives the two adjusting plates to approach each other, the second limiting plate and the first limiting plate will enter the first limiting groove and the second limiting groove respectively, thereby achieving the purpose of restraining and fixing the first fixture and the second fixture.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art of the present invention can make various modifications or supplements to the described specific embodiments or use similar methods to replace them, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A lifting tool for removing and installing an oil cylinder, comprising a first fixture (1), characterized in that, A second fixture (2) is provided on one side of the first fixture (1), and the second fixture (2) is arranged in cooperation with the first fixture (1). The first fixture (1) and the second fixture (2) are symmetrically arranged. Two locking blocks (4) are slidably connected to one side of the first fixture (1) and the second fixture (2). Two first limiting grooves (401) are formed on one side of each of the two locking blocks (4). Two second limiting plates (302) are symmetrically and slidably connected to the inside of each of the two first limiting grooves (401). A moving mechanism for moving the second limiting plates (302) is provided on the surface of one side of each of the two second limiting plates (302) away from the locking blocks (4). Two second receiving grooves (402) are symmetrically formed on the surface of one side of each of the two locking blocks (4) close to the first limiting grooves (401). A locking mechanism for locking the second limiting plates (302) is provided inside each of the two second receiving grooves (402). A same bolt (403) is slidably connected to one side of the first fixture (1) and the second fixture (2). A constraining mechanism for constraining the bolt (403) is provided on the surface of one side of the bolt (403) close to the first limiting grooves (401).

2. The lifting tool for removing and installing the oil cylinder according to claim 1, wherein The moving mechanism includes two chutes (201). The two chutes (201) are symmetrically formed on one side of the second fixture (2). Two bidirectional lead screws (203) are rotatably connected to the inside of each of the two chutes (201). A same adjusting plate (3) is fixedly connected to the surface of one side of each of the two second limiting plates (302) away from the locking blocks (4). A sliding plate (304) is fixedly connected to the surface of one side of the adjusting plate (3) close to the two bidirectional lead screws (203).

3. The lifting tool for removing and installing the oil cylinder according to claim 2, wherein, And the two sliding plates (304) are both slidably connected to the inside of the chutes (201). A lead screw nut (305) is provided on the surface of one side of each of the two sliding plates (304) close to the bidirectional lead screws (203). The lead screw nut (305) is arranged in cooperation with the bidirectional lead screw (203). A connecting mechanism for connecting the bidirectional lead screws (203) is provided on one side of each of the two chutes (201).

4. The lifting tool for removing and installing the oil cylinder according to claim 3, characterized in that, The connecting mechanism includes a first receiving groove (202). The first receiving groove (202) is formed between the two chutes (201). A synchronous pulley (204) is sleeved on the surface of one side of each of the two bidirectional lead screws (203) close to the first receiving groove (202). A same synchronous belt (206) is sleeved on the surfaces of the two synchronous pulleys (204). A plurality of adjusting rollers (207) are rotatably connected to the inside of the first receiving groove (202). And the plurality of adjusting rollers (207) are all arranged in cooperation with the synchronous belt (206). Adjusting blocks (205) are fixedly connected to both ends of one of the bidirectional lead screws (203).

5. The lifting tool for removing and installing the oil cylinder according to claim 1, characterized in that, The locking mechanism includes a locking post (501). The locking post (501) is slidably connected to one side inside the second receiving groove (402). A locking hole (303) is formed on the surface of one side of the second limiting plate (302) close to the locking post (501). The locking post (501) is slidably connected to the inside of the locking hole (303). A pulling plate (5) is fixedly connected to the end of one side of the locking post (501) away from the second limiting plate (302).

6. The lifting tool for removing and installing the oil cylinder according to claim 5, wherein, A tension spring (502) is sleeved on the surface of the locking post (501) close to one side of the second storage groove (402). One end of the tension spring (502) is fixedly connected to one side of a pull plate (5), and the other end of the tension spring (502) is fixedly connected to one side inside the second storage groove (402).

7. The lifting tool for removing and installing the oil cylinder according to claim 1, characterized in that, The restraint mechanism includes a second limiting groove (404) opened on one side of a bolt (403). Two first limiting plates (301) are symmetrically and slidably connected inside the second limiting groove (404). Both of the two first limiting plates (301) are fixedly connected to one side of an adjusting plate (3). A nut (405) is sleeved on the surface of the bolt (403) close to the second limiting groove (404).

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