Horizontal oil cylinder disassembling machine

Abstract

The utility model discloses a horizontal oil cylinder dismounting machine, which relates to the technical field of horizontal oil cylinder dismounting and comprises a frame and an oil cylinder body, the oil cylinder body is fixedly connected with the inside of the frame, a piston rod is slidably mounted in the oil cylinder body, and one end of the piston rod extends out of the inside of the oil cylinder body. A controller is fixedly installed on the top of the rack, a fixing frame is fixedly connected to one end of the rack, a lead screw is rotationally connected into the fixing frame, a motor is fixedly installed at one end of the fixing frame, an output shaft of the motor is fixedly connected with one end of the lead screw, and a movable frame is installed on the outer surface of the lead screw in a threaded mode. The other end of the movable frame is provided with a limiting part for limiting the rotating speed of the lead screw. According to the oil cylinder, the lead screw is matched with the movable frame, the motor is used for driving the two-way screw rod to rotate according to needs, the contact area of the two-way screw rod and the protruding block is adjusted, then the rotating speed of the lead screw is limited, and therefore the speed that the piston rod rushes out of the oil cylinder body is reduced to a certain degree.

Description

Technical Field

[0001] This utility model relates to the field of horizontal hydraulic cylinder disassembly technology, specifically to a horizontal hydraulic cylinder disassembly machine. Background Technology

[0002] Horizontal hydraulic cylinders are actuators in hydraulic systems. Their cylinder bodies are placed horizontally, and their direction of movement is perpendicular to the ground. They are widely used in lateral movement scenarios, but it is necessary to be wary of issues such as off-center loading and friction. The first step in the remanufacturing and repair of horizontal hydraulic cylinders is cylinder disassembly, which directly affects the efficiency and reuse rate of hydraulic cylinder repair, as well as the cost of repair.

[0003] The disassembly of horizontal hydraulic cylinders must strictly follow safety regulations and standard procedures to ensure the safety and efficiency of the disassembly process. First, before disassembly, ensure the hydraulic circuit is depressurized to prevent high-pressure oil from spraying out and causing danger. Second, during disassembly, prevent damage to critical parts such as the piston rod tip thread, oil port thread, piston rod surface, and cylinder liner inner wall.

[0004] Existing hydraulic cylinders are mostly disassembled using pneumatic pressure or hammering, which causes the piston rod to be ejected in an instant, creating a safety hazard. Therefore, it is necessary to propose a new type of horizontal hydraulic cylinder disassembly machine to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a horizontal hydraulic cylinder dismantling machine to solve the problem mentioned in the background art that existing hydraulic cylinders are mostly dismantled by air pressure or hammering, which causes the piston rod of the hydraulic cylinder to be rushed out in an instant, thus causing a safety hazard.

[0006] To achieve the above objectives, the first aspect of this utility model provides a horizontal hydraulic cylinder dismantling machine, comprising:

[0007] The machine includes a frame and a cylinder body. The cylinder body is internally fixedly connected to the frame. A piston rod is slidably mounted inside the cylinder body, with one end extending out of the cylinder body. A fixed frame is fixedly connected to one end of the frame. A lead screw is rotatably connected inside the fixed frame. A motor is fixedly mounted to one end of the fixed frame, and the output shaft of the motor is fixedly connected to one end of the lead screw. A movable frame is threaded onto the outer surface of the lead screw, sliding relative to the fixed frame under the action of the lead screw. A limiting component is provided at the other end of the movable frame to limit the speed of the lead screw. A limiting frame is engaged with the periphery of one end of the piston rod. A buffer component is provided between the limiting frame and the movable frame to cushion the impact force of the piston rod. A clamping device for holding the piston rod is provided on the side of the limiting frame away from the movable frame. The clamping device can be any existing clamping device or clamping structure, which can achieve the purpose of clamping the piston rod.

[0008] Furthermore, the limiting component includes a fixing block located at the top of the lead screw, with the other end of the fixing block fixedly connected to a fixing frame. A bidirectional screw is rotatably mounted inside the fixing block, and a motor is fixedly connected to one side of the fixing block. The output shaft of the motor is fixedly connected to the bidirectional screw. A protrusion is provided on the outer surface of the lead screw, and a pair of clamps are threaded onto the outer surface of the bidirectional screw. A limit block is fixedly installed on the inner side of the clamps, and the limit block and the protrusion are misaligned.

[0009] Furthermore, a connecting block is fixedly installed inside the fixing frame at the bottom of the lead screw, and a crossbar is fixedly connected inside the connecting block. The clamping plate is slidably connected to the outer surface of the crossbar.

[0010] Furthermore, the buffer component includes a sleeve plate, one end of which is fixedly connected to the movable frame. A piston plate is slidably installed inside the sleeve plate via a spring. A slide rod is fixedly connected to the other end of the piston plate. The other end of the slide rod extends out of the interior of the sleeve plate and is fixedly connected to one end of the limiting frame.

[0011] Furthermore, several protruding strips are fixedly installed on both sides of the sleeve plate, and an extension plate is fixedly installed on one end of the limiting frame on both sides of the limiting block. A rubber block is attached to the inner surface of the extension plate, and the inner side of the rubber block is in contact with the protruding strip. The outward protrusion degree (protrusion height) of each protruding strip gradually increases from the end closer to the limiting frame to the end farther away from the limiting frame.

[0012] Furthermore, reinforcement components are fixedly installed on both sides of the limiting frame, and these reinforcement components are fixedly connected to the outer surface of the extension plate.

[0013] Furthermore, a threaded rod is threadedly mounted on the top of the frame, the bottom of which extends out of the frame and is rotatably mounted with a clamping plate, which presses against the top of one end of the cylinder body.

[0014] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0015] 1. This utility model provides a horizontal hydraulic cylinder dismantling machine. The motor drives the lead screw to rotate, which causes the movable frame to move. This can guide and limit the sliding trajectory of the piston rod. Furthermore, the motor can be used to drive the bidirectional screw to rotate as needed, thereby adjusting the contact area between the bidirectional screw and the protrusion. Both the limiting block and the protrusion have a certain deformation and rebound capability, which limits the rotational speed of the lead screw (deceleration or clamping), thereby limiting the moving speed of the movable frame. This reduces the speed at which the piston rod rushes out of the hydraulic cylinder body to a certain extent.

[0016] 2. This utility model provides a horizontal hydraulic cylinder disassembly machine. During the disassembly of the hydraulic cylinder body, the piston rod will press against the limiting frame at one end, while simultaneously driving the sliding rod and piston plate to move to one end. The impact force of the piston rod is buffered and absorbed by the spring. Furthermore, through the cooperation of the rubber block and the convex strip, the extension plate is moved by the limiting frame, causing the rubber block to gradually press against each convex strip. At this time, the convex strip forms a reaction force on the rubber block, thereby further buffering and protecting the piston rod and improving the safety performance of the device. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a partial structural diagram of the fixing frame of this utility model;

[0020] Figure 3 This is a partial structural diagram of the frame of this utility model;

[0021] Figure 4 This is a partial structural diagram of the sleeve plate of this utility model;

[0022] Figure 5 This is a partial structural diagram of the sleeve plate of this utility model;

[0023] Figure 6 This is a partial cross-sectional structural diagram of the fixing block of this utility model.

[0024] In the diagram: 1. Frame; 2. Cylinder body; 3. Piston rod; 4. Controller; 5. Fixing frame; 6. Lead screw; 7. Motor; 8. Limiting frame; 9. Sleeve plate; 10. Movable frame; 11. Fixing block; 12. Threaded rod; 13. Clamping plate; 14. Protrusion; 15. Extension plate; 16. Rubber block; 17. Reinforcing component; 18. Spring; 19. Piston plate; 20. Slide rod; 21. Double-acting screw; 22. Motor; 23. Clamping plate; 24. Limiting block; 25. Protrusion; 26. Connecting block; 27. Crossbar. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the embodiments.

[0026] Designing a structure that provides cushioning protection for the piston rod of a horizontal hydraulic cylinder during disassembly is currently the primary technical problem that engineers need to solve.

[0027] To address the aforementioned problems, this utility model provides a horizontal hydraulic cylinder dismantling machine. This structure utilizes multiple buffer structures to buffer and protect the piston rod 3, thereby reducing the possibility of it being ejected from the inside of the hydraulic cylinder body 2 in an instant.

[0028] The technical solution of the present invention (Embodiment 1) is described in detail below with reference to the accompanying drawings.

[0029] See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 The horizontal hydraulic cylinder dismantling machine specifically includes:

[0030] The machine consists of a frame 1 and a cylinder body 2. The cylinder body 2 is fixedly connected to the inside of the machine frame 1. A piston rod 3 is slidably installed inside the cylinder body 2, with one end of the piston rod 3 extending out of the inside of the cylinder body 2. A controller 4 is fixedly installed on the top of the machine frame 1. A fixed frame 5 is fixedly connected to one end of the machine frame 1. A lead screw 6 is rotatably connected inside the fixed frame 5. A motor 7 is fixedly installed at one end of the fixed frame 5. The output shaft of the motor 7 is fixedly connected to one end of the lead screw 6. A movable frame 10 is threaded onto the outer surface of the lead screw 6. A limiting component for limiting the rotational speed of the lead screw 6 is provided at the other end of the movable frame 10. A limiting frame 8 is snapped onto the periphery of one end of the piston rod 3. A buffer component for buffering the impact force of the piston rod 3 is provided between the limiting frame 8 and the movable frame 10. A clamping device for clamping the piston rod 3 is provided on the side of the limiting frame 8 away from the movable frame 10. In this embodiment, the movable frame 10 slides relative to the fixed frame 5 under the action of the lead screw 6; that is, the movable frame 10 and the fixed frame 5 are limited to rotate circumferentially through the slider groove structure, so that the movable frame 10 can slide left and right under the action of the lead screw 6.

[0031] Specifically, the limiting component includes a fixing block 11, which is located at the top of the lead screw 6, and the other end of the fixing block 11 is fixedly connected to the fixing frame 5. A bidirectional screw 21 is rotatably installed inside the fixing block 11. A motor 22 is fixedly connected to one side of the fixing block 11. The output shaft of the motor 22 is fixedly connected to the bidirectional screw 21. A protrusion 25 is provided on the outer surface of the lead screw 6. A pair of clamping plates 23 are threadedly installed on the outer surface of the bidirectional screw 21. A limiting block 24 is fixedly installed on the inner side of the clamping plate 23. The limiting block 24 and the protrusion 25 are misaligned.

[0032] Specifically, a connecting block 26 is fixedly installed inside the fixing frame 5 at the bottom of the lead screw 6, and a crossbar 27 is fixedly connected inside the connecting block 26. The clamping plate 23 is slidably connected to the outer surface of the crossbar 27.

[0033] Specifically, the buffer component includes a sleeve plate 9, one end of which is fixedly connected to the movable frame 10. A piston plate 19 is slidably installed inside the sleeve plate 9 via a spring 18. A slide rod 20 is fixedly connected to the other end of the piston plate 19. The other end of the slide rod 20 extends out of the interior of the sleeve plate 9 and is fixedly connected to one end of the limiting frame 8.

[0034] Specifically, several protrusions 14 are fixedly installed on both sides of the sleeve plate 9, and an extension plate 15 is fixedly installed on one end of the limiting frame 8 on both sides of the limiting block 24. A rubber block 16 is attached to the inner surface of the extension plate 15, and the inner side of the rubber block 16 is in contact with the protrusions 14. The degree of protrusion (outward protrusion height) of each protrusion 14 gradually increases from the end near the limiting frame 8 to the end far away from the limiting frame 8.

[0035] Specifically, reinforcement members 17 are fixedly installed on both sides of the limiting frame 8, and the reinforcement members 17 are fixedly connected to the outer surface of the extension plate 15.

[0036] Specifically, a threaded rod 12 is threadedly installed on the top of the frame 1. The bottom of the threaded rod 12 extends out of the interior of the frame 1 and is rotatably mounted with a clamping plate 13. The clamping plate 13 is pressed against the top of one end of the cylinder body 2.

[0037] In this embodiment, in order to slow down the speed at which the piston rod 3 rushes out of the cylinder body 2, reference is made to... Figure 1 , Figure 2 and Figure 6 The specific implementation method is as follows: During the disassembly of the cylinder body 2, the motor 7 drives the lead screw 6 to rotate, and at the same time drives the movable frame 10 to move to one end, thereby guiding and limiting the sliding trajectory of the piston rod 3 from one end, thus slowing down the speed at which the piston rod 3 rushes out of the cylinder body 2 to a certain extent; and the motor 22 drives the bidirectional screw 21 to rotate, and at the same time drives the clamping plate 23 to move, adjusting the contact area between the bidirectional screw 21 and the protrusion 25. The limiting block 24 and the protrusion 25 both have a certain deformation and springback ability, and the larger the contact area between the limiting block 24 and the protrusion 25, the more it can restrict the rotation of the lead screw 6, and vice versa. When the rotation speed of the lead screw 6 decreases, the moving speed of the movable frame 10 is slower, thus further slowing down the speed at which the piston rod 3 rushes out of the cylinder body 2.

[0038] In this embodiment, in order to buffer the speed at which the piston rod 3 impacts the inside of the cylinder body 2, reference is made. Figure 1 , Figure 4 and Figure 5The specific implementation method is as follows: During the disassembly of the cylinder body 2, the piston rod 3 will press against the limiting bracket 8 at one end, causing the slide rod 20 and piston plate 19 to move to one end. At this time, the spring force of the spring 18 can buffer and absorb the impact force of the piston rod 3 to a certain extent. In addition, the limiting bracket 8 can drive the extension plate 15 to move synchronously during the movement, so that the rubber block 16 gradually presses each protrusion 14. At this time, the protrusion 14 forms a reaction force on the rubber block 16. Since both the rubber block 16 and the protrusion 14 are made of rubber, they can deform. The rebound further buffers and protects the piston rod 3, improving the safety performance of the device. By setting several protruding strips 14 with different protrusions, as the rubber block 16 gradually contacts each protruding strip 14, the reaction force of the protruding strip 14 on the rubber block 16 gradually increases, thereby gradually improving the buffering effect. The installation of the reinforcement 17 increases the contact area between the extension plate 15 and the limit frame 8, which strengthens the extension plate 15 and reduces the possibility that the extension plate 15 will bend outward after the rubber block 16 is squeezed by the protruding strips 14.

[0039] In this embodiment, in order to improve the limiting effect on the cylinder body 2, reference is made to... Figure 1 and Figure 3 The specific implementation method is as follows: by rotating the threaded rod 12, the clamping plate 13 can be moved to the bottom, so that it comes into contact with the surface of the cylinder body 2 and squeezes the cylinder body 2 (not the cylinder cover), thereby improving the limiting effect on the cylinder body 2. At this time, the piston rod 3 is disengaged from the cylinder body 2 under the action of the leftward moving frame (limiting frame, clamping device), so as to achieve the purpose of cylinder disassembly.

[0040] The present invention has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of each embodiment have different focuses; for parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments. Those skilled in the art should also understand that the actions and modules involved in the specification are not necessarily essential to the present invention. Furthermore, it is understood that the steps in the method of the present invention embodiments can be adjusted, combined, and deleted according to actual needs, and the structure in the device of the present invention embodiments can be combined, divided, and deleted according to actual needs.

[0041] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A horizontal hydraulic cylinder dismantling machine, comprising a frame (1) and a hydraulic cylinder body (2), wherein the hydraulic cylinder body (2) is fixedly connected to the interior of the frame (1), and a piston rod (3) is slidably mounted inside the hydraulic cylinder body (2), one end of which extends out of the interior of the hydraulic cylinder body (2); characterized in that: One end of the frame (1) is fixedly connected to a fixed frame (5), and a lead screw (6) is rotatably connected inside the fixed frame (5). A motor (7) is fixedly installed at one end of the fixed frame (5), and the output shaft of the motor (7) is fixedly connected to one end of the lead screw (6). A movable frame (10) is threaded on the outer surface of the lead screw (6). The movable frame (10) slides relative to the fixed frame (5) under the action of the lead screw (6). The other end of the movable frame (10) is provided with a limiting component for limiting the rotational speed of the lead screw (6). The piston rod (3) is engaged with a limiting frame (8) at one end. A buffer component for buffering the impact force of the piston rod (3) is provided between the limiting frame (8) and the movable frame (10). A clamping device for clamping the piston rod (3) is provided on the side of the limiting frame (8) away from the movable frame (10).

2. The horizontal hydraulic cylinder dismantling machine according to claim 1, characterized in that: The limiting component includes a fixing block (11), which is located at the top of the lead screw (6) and the other end of the fixing block (11) is fixedly connected to the fixing frame (5). A bidirectional screw (21) is rotatably installed inside the fixing block (11). A motor (22) is fixedly connected to one side of the fixing block (11). The output shaft of the motor (22) is fixedly connected to the bidirectional screw (21). A protrusion (25) is provided on the outer surface of the lead screw (6). A pair of clamps (23) are threaded on the outer surface of the bidirectional screw (21). A limit block (24) is fixedly installed on the inner side of the clamp (23). The limit block (24) is offset from the protrusion (25). A connecting block (26) is fixedly installed inside the fixing frame (5) at the bottom of the lead screw (6). A crossbar (27) is fixedly connected inside the connecting block (26). The clamps (23) are slidably connected to the outer surface of the crossbar (27).

3. The horizontal hydraulic cylinder dismantling machine according to claim 2, characterized in that: The buffer component includes a sleeve plate (9), one end of which is fixedly connected to the movable frame (10). A piston plate (19) is slidably installed inside the sleeve plate (9) via a spring (18). A slide rod (20) is fixedly connected to the other end of the piston plate (19). The other end of the slide rod (20) extends out of the interior of the sleeve plate (9) and is fixedly connected to one end of the limiting frame (8).

4. The horizontal hydraulic cylinder dismantling machine according to claim 3, characterized in that: Several protrusions (14) are fixedly installed on both sides of the sleeve plate (9). An extension plate (15) is fixedly installed on one end of the limiting frame (8) on both sides of the limiting block (24). A rubber block (16) is attached to the inner surface of the extension plate (15). The inner side of the rubber block (16) is in contact with the protrusions (14). The degree of protrusion of each protrusion (14) gradually increases from the end close to the limiting frame (8) to the end far away from the limiting frame (8).

5. The horizontal hydraulic cylinder dismantling machine according to claim 4, characterized in that: Both sides of the limiting frame (8) are fixedly installed with reinforcement parts (17), which are fixedly connected to the outer surface of the extension plate (15).

6. The horizontal hydraulic cylinder dismantling machine according to claim 1, characterized in that: The top of the frame (1) is threaded with a threaded rod (12), the bottom of which extends out of the interior of the frame (1) and is rotatably mounted with a clamping plate (13), which presses against the top of one end of the cylinder body (2).

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