Oil cylinder sleeve convenient to disassemble and assemble for oil cylinder

Abstract

The utility model relates to the technical field of oil cylinder sleeves convenient to disassemble and assemble for oil cylinders, and discloses an oil cylinder sleeve convenient to disassemble and assemble for oil cylinders, which comprises an upper oil sleeve and a lower oil sleeve, components convenient to disassemble and assemble are arranged outside the upper oil sleeve and the lower oil sleeve, and each component convenient to disassemble and assemble comprises a connecting piece and a threaded block. Connecting blocks are fixedly connected to the two sides of the front faces and the two sides of the back faces of the upper oil sleeve and the lower oil sleeve correspondingly, sealing cotton is fixedly connected to the two sides of the bottom of the upper oil sleeve correspondingly, through the arrangement of the assembly convenient to disassemble and assemble, when the upper oil sleeve and the lower oil sleeve are installed to the oil cylinder, the connecting rods are inserted into the hollowed-out holes, the clamping blocks pop out under the action of the springs, and preliminary positioning is achieved; when the upper oil sleeve and the lower oil sleeve are disassembled, the upper oil sleeve and the lower oil sleeve can be separated by reversely operating, screwing out the screw rod and pressing the clamping block to retract into the connecting rod, so that the disassembly time and the labor cost are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic cylinder liners for hydraulic cylinders that are easy to disassemble and assemble, and particularly to a hydraulic cylinder liner for hydraulic cylinders that is easy to disassemble and assemble. Background Technology

[0002] Hydraulic cylinders, as key actuators in hydraulic systems, play an indispensable role in many industrial fields due to their ability to efficiently convert hydraulic energy into mechanical energy. In the field of construction machinery, equipment such as excavators, loaders, and cranes rely on hydraulic cylinders to achieve key actions such as digging, loading, unloading, and lifting. In agricultural machinery, the hydraulic suspension system of tractors and the header lifting device of combine harvesters both rely on the assistance of hydraulic cylinders. In addition, hydraulic cylinders are also widely used in industries such as metallurgy, mining, and shipbuilding to complete various complex work tasks.

[0003] Existing hydraulic cylinder liners that are easy to disassemble and assemble may use a multi-point fastening method with bolts and nuts. In actual use, workers need to tighten multiple bolts and nuts one by one. This operation is cumbersome, and each bolt needs to be tightened in sequence, which consumes a lot of time and effort. Therefore, we propose a hydraulic cylinder liner that is easy to disassemble and assemble. Utility Model Content

[0004] The purpose of this utility model is to provide a cylinder liner for hydraulic cylinders that is easy to disassemble and assemble, in order to solve the problem mentioned in the background art that the installation method of using bolts and nuts for multi-point fastening requires workers to tighten multiple bolts and nuts one by one in actual use. This operation process is cumbersome, and each bolt needs to be tightened in sequence, which consumes a lot of time and effort.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a hydraulic cylinder liner for easy disassembly and assembly, comprising an upper liner and a lower liner, wherein the upper liner and the lower liner are provided with an easy disassembly and assembly component, the easy disassembly and assembly component comprising a connector and a threaded block, wherein the upper liner and the lower liner are fixedly connected to both sides of the front and both sides of the back, and the upper liner is fixedly connected to both sides of the bottom, wherein the connector is connected to a spring and a locking block via a connecting rod, and the threaded block is connected to a protrusion via a lead screw.

[0006] As a preferred embodiment, the connecting rod is fixedly connected to the bottom of the connector, one end of the spring is fixedly connected to the inner wall of the connecting rod, and the other end of the spring is fixedly connected to the outer wall of the clamping block. Hollow holes are provided on the top of the upper oil sleeve back connecting block and the top of the lower oil sleeve back connecting block.

[0007] As a preferred embodiment, the outer wall of the connecting rod is slidably connected to the inner wall of the hollow hole, the lead screw is fixedly connected to the bottom of the threaded block, and the protrusion is fixedly connected to the bottom of the lead screw.

[0008] As a preferred embodiment, the top of the upper oil sleeve front connecting block and the top of the lower oil sleeve front connecting block are both provided with threaded grooves, and the outer wall of the lead screw is threaded to the inner wall of the threaded groove.

[0009] As a preferred embodiment, both the upper and lower oil sleeves are provided with adjustable inner diameter components. The adjustable inner diameter components include a fixed frame, a torsion bar, and an arc-shaped disc. Placement grooves are provided on the inner walls of both the upper and lower oil sleeves. The two sets of fixed frames are respectively fixedly installed on the outer walls of the upper and lower oil sleeves.

[0010] As a preferred embodiment, a screw is fixedly connected to the outer wall of the torsion bar, the outer wall of the screw is threadedly connected to the inner wall of the fixed frame, the outer walls of the two sets of screws are respectively threadedly connected to the inner walls of the upper oil sleeve and the lower oil sleeve, one end of the screw is rotatably connected to the inside of the arc-shaped disk, and the outer wall of the arc-shaped disk is in contact with the inner wall of the placement groove.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. With the easy-to-disassemble components, when installing the upper and lower oil sleeves into the cylinder, insert the connecting rod into the hollow hole, and the locking block pops out under the action of the spring to achieve initial positioning. Then, screw the screw into the threaded groove to make the upper and lower oil sleeves tightly connected. When disassembling the upper and lower oil sleeves, the operation is reversed. First, screw out the screw, and then press the locking block to make it retract into the connecting rod, so that the upper and lower oil sleeves can be separated. This saves disassembly and assembly time and labor costs.

[0013] 2. With the adjustable inner diameter component, the operator can rotate the torsion bar, and the screw will move under the action of the threads on the inner walls of the fixed frame and the upper and lower oil sleeves, causing the arc-shaped disk to slide in the placement groove, thereby changing the inner diameter of the upper and lower oil sleeves. This allows the cylinder liner to be used for different models of cylinders, improving the versatility of the product and reducing the cost for enterprises to equip different cylinder liners for different cylinders. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is one of the partial structural diagrams of the easy-to-assemble and disassemble components of this utility model;

[0016] Figure 3 This is the second partial structural diagram of the easy-to-assemble and disassemble component of this utility model;

[0017] Figure 4 This is a schematic diagram of the adjustable inner diameter component of this utility model;

[0018] Figure 5 for Figure 4 Schematic diagram of the middle section.

[0019] In the diagram: 1. Upper oil sleeve; 2. Lower oil sleeve; 3. Easy-to-disassemble component; 301. Sealing cotton; 302. Connecting block; 303. Connector; 304. Connecting rod; 305. Spring; 306. Locking block; 307. Threaded block; 308. Lead screw; 309. Protrusion; 310. Hollow hole; 311. Threaded groove; 4. Adjustable inner diameter component; 401. Placement groove; 402. Fixing frame; 403. Torsion bar; 404. Screw; 405. Arc-shaped disc. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] Please see the appendix Figure 1 - Appendix Figure 3 A hydraulic cylinder liner for easy disassembly and assembly includes an upper liner 1 and a lower liner 2. The upper liner 1 and lower liner 2 are externally provided with an easy-to-disassemble assembly 3, which includes a connector 303 and a threaded block 307. Connecting blocks 302 are fixedly connected to both sides of the front and back of the upper liner 1 and lower liner 2. Sealing cotton 301 is fixedly connected to both sides of the bottom of the upper liner 1. The connector 303 is connected to a spring 305 and a locking block 306 via a connecting rod 304. The threaded block 307 is connected to a protrusion 309 via a lead screw 308. The connecting rod 304 is fixedly connected to the bottom of the connector 303. One side of the spring 305... One end is fixedly connected to the inner wall of the connecting rod 304, and the other end of the spring 305 is fixedly connected to the outer wall of the locking block 306. The top of the back connecting block 302 of the upper oil sleeve 1 and the top of the back connecting block 302 of the lower oil sleeve 2 are both provided with hollow holes 310. The outer wall of the connecting rod 304 is slidably connected to the inner wall of the hollow hole 310. The lead screw 308 is fixedly connected to the bottom of the threaded block 307, and the protrusion 309 is fixedly connected to the bottom of the lead screw 308. The top of the front connecting block 302 of the upper oil sleeve 1 and the top of the front connecting block 302 of the lower oil sleeve 2 are both provided with threaded grooves 311. The outer wall of the lead screw 308 is threadedly connected to the inner wall of the threaded groove 311.

[0023] The bottom of the connecting rod 304 has a groove, and one end of the spring 305 is fixed to the inner wall of the groove. Under the action of the spring 305, the locking block 306 can move into the groove. At this time, the connecting rod 304 can be moved out of the hollow hole 310. The upper part of the lead screw 308 has threads and can be threaded to the threaded groove 311. The lower part has a smooth structure. When the lead screw 308 is put into the threaded groove 311, its lower part can be put in directly. The threaded connection is then performed when the upper part arrives.

[0024] Specifically, by using the easy-to-disassemble component 3, when installing the upper oil sleeve 1 and the lower oil sleeve 2 into the oil cylinder, the connecting rod 304 is inserted into the hollow hole 310, and the locking block 306 is ejected by the spring 305 to complete the initial positioning. Then, the lead screw 308 is screwed into the threaded groove 311 to make the upper oil sleeve 1 and the lower oil sleeve 2 tightly connected. When disassembling the upper oil sleeve 1 and the lower oil sleeve 2, the operation is reversed. First, the lead screw 308 is unscrewed, and then the locking block 306 is pressed to retract it into the connecting rod 304, so that the upper oil sleeve 1 and the lower oil sleeve 2 can be separated, thereby saving disassembly and assembly time and labor costs.

[0025] Example 2:

[0026] Please see the appendix Figure 1 Appendix Figure 4 and appendix Figure 5 Furthermore, based on Embodiment 1, both the upper oil sleeve 1 and the lower oil sleeve 2 are provided with an adjustable inner diameter assembly 4. The adjustable inner diameter assembly 4 includes a fixed frame 402, a torsion bar 403, and an arc-shaped disk 405. The inner walls of both the upper oil sleeve 1 and the lower oil sleeve 2 are provided with placement grooves 401. The two sets of fixed frames 402 are respectively fixedly installed on the outer walls of the upper oil sleeve 1 and the lower oil sleeve 2. A screw 404 is fixedly connected to the outer wall of the torsion bar 403. The outer wall of the screw 404 is threadedly connected to the inner wall of the fixed frame 402. The outer walls of the two sets of screws 404 are respectively threadedly connected to the inner walls of the upper oil sleeve 1 and the lower oil sleeve 2. One end of the screw 404 is rotatably connected to the inside of the arc-shaped disk 405. The outer wall of the arc-shaped disk 405 is in contact with the inner wall of the placement groove 401.

[0027] One end of the screw 404 is rotatably connected to the arc-shaped disk 405, so it can drive the arc-shaped disk 405 to move within the placement groove 401, thereby changing the inner diameter of the upper oil sleeve 1 and the lower oil sleeve 2, so that they can be installed on oil cylinders with different outer diameter specifications.

[0028] Specifically, through the adjustable inner diameter component 4, when the operator rotates the torsion bar 403, the screw 404 moves under the interaction of the fixed frame 402 and the inner wall threads of the upper oil sleeve 1 and the lower oil sleeve 2. The movement of the screw 404 drives the arc-shaped disk 405 to slide in the placement groove 401, thereby changing the inner diameter of the upper oil sleeve 1 and the lower oil sleeve 2. This allows the cylinder liner to be adapted to different models of cylinders, achieving universality and reducing the investment of enterprises in configuring cylinder liners separately for different cylinders.

[0029] The working principle of this utility model is as follows: This utility model is a cylinder sleeve for hydraulic cylinders that is easy to assemble and disassemble. First, when the cylinder sleeve needs to be installed on the hydraulic cylinder, the connecting rod 304 at the bottom of the connector 303 is inserted into the hollow hole 310 at the top of the connecting block 302 on the back of the upper cylinder sleeve 1 and the lower cylinder sleeve 2. At this time, the spring 305 pushes the locking block 306 to pop out and lock it in a specific position in the hollow hole 310, completing the initial positioning of the upper cylinder sleeve 1 and the lower cylinder sleeve 2. Next, the lead screw 308 is aligned with the threaded groove 311 at the top of the connecting block 302 on the front of the upper cylinder sleeve 1 and the lower cylinder sleeve 2. Since the lower half of the lead screw 308 is smooth, it can be directly inserted into the threaded groove 311. When the upper half of the lead screw 308 reaches the threaded groove 311, the lead screw 308 is rotated to make it threaded with the threaded groove 311, so that the upper cylinder sleeve 1 and the lower cylinder sleeve 2 fit tightly against the hydraulic cylinder. Then, when the cylinder sleeve needs to be disassembled, the reverse operation is performed. First, the lead screw 304 is rotated... 8. Unscrew it from the threaded groove 311 to release the tight connection between the upper oil sleeve 1 and the lower oil sleeve 2. Then, press the locking block 306 to overcome the elastic force of the spring 305 and retract it into the groove at the bottom of the connecting rod 304. At this time, the connecting rod 304 can be smoothly moved out of the hollow hole 310, realizing the separation of the upper oil sleeve 1 and the lower oil sleeve 2. Finally, when the cylinder sleeve needs to be adapted to cylinders with different outer diameters, the operator rotates the torsion bar 403. Due to the outer wall of the torsion bar 403... The screw 404, fixedly connected to the frame 402, and the inner walls of the upper oil sleeve 1 and lower oil sleeve 2 are all threaded. The rotation of the torsion bar 403 will cause the screw 404 to move along the thread direction. One end of the screw 404 is rotatably connected to the arc-shaped disk 405. Therefore, the movement of the screw 404 will cause the arc-shaped disk 405 to slide in the placement groove 401. The sliding of the arc-shaped disk 405 changes the inner diameter of the upper oil sleeve 1 and lower oil sleeve 2, so that it can be adapted to oil cylinders with different outer diameter specifications.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylinder liner for a cylinder of a hydraulic cylinder, which is easy to disassemble, comprising an upper cylinder liner (1) and a lower cylinder liner (2), characterized in that: The oiling sleeve (1) and the oiling sleeve (2) are externally provided with a convenient dismounting assembly (3), the convenient dismounting assembly (3) comprises a connecting piece (303) and a threaded block (307), the front side and the back side of the oiling sleeve (1) and the oiling sleeve (2) are fixedly connected with connecting blocks (302), the bottom of the oiling sleeve (1) is fixedly connected with sealing cotton (301), the connecting piece (303) is connected with a spring (305) and a clamping block (306) through a connecting rod (304), and the threaded block (307) is connected with a protruding block (309) through a lead screw (308).

2. The cylinder liner according to claim 1, wherein: The connecting rod (304) is fixedly connected to the bottom of the connecting piece (303), one end of the spring (305) is fixedly connected to the inner wall of the connecting rod (304), the other end of the spring (305) is fixedly connected to the outer wall of the clamping block (306), and the top of the back connecting block (302) of the oiling sleeve (1) and the top of the back connecting block (302) of the oiling sleeve (2) are both provided with a hollow hole (310).

3. The cylinder liner according to claim 2, wherein: The outer wall of the connecting rod (304) is in sliding connection with the inner wall of the hollow hole (310), the lead screw (308) is fixedly connected to the bottom of the threaded block (307), and the protruding block (309) is fixedly connected to the bottom of the lead screw (308).

4. The cylinder liner according to claim 3, wherein: The top of the front connecting block (302) of the oiling sleeve (1) and the top of the front connecting block (302) of the oiling sleeve (2) are both provided with a threaded groove (311), and the outer wall of the lead screw (308) is in threaded connection with the inner wall of the threaded groove (311).

5. The cylinder liner according to claim 4, wherein: The outer wall of the connecting rod (304) is in sliding connection with the inner wall of the hollow hole (310), the lead screw (308) is fixedly connected to the bottom of the threaded block (307), and the protruding block (309) is fixedly connected to the bottom of the lead screw (308).

6. The cylinder liner according to claim 5, wherein: The top of the front connecting block (302) of the oiling sleeve (1) and the top of the front connecting block (302) of the oiling sleeve (2) are both provided with a threaded groove (311), and the outer wall of the lead screw (308) is in threaded connection with the inner wall of the threaded groove (311). The outer wall of the connecting rod (304) is in sliding connection with the inner wall of the hollow hole (310), the lead screw (308) is fixedly connected to the bottom of the threaded block (307), and the protruding block (309) is fixedly connected to the bottom of the lead screw (308).

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