Guide equipment for hydraulic cylinder

Abstract

The utility model discloses guide equipment for a hydraulic cylinder, which comprises a shell, a limiting part and a sliding groove, the sliding groove is arranged at the top end of the shell and penetrates through the shell, and the limiting part is arranged in the sliding groove. The limiting part comprises a sliding block slidably connected into the sliding groove, a limiting plate welded to the bottom end of the sliding block and a buffering plate fixedly arranged at the lower end of the limiting plate. Through the arrangement of the limiting part, when the piston rod needs to be guided, the sliding blocks at the upper end and the lower end slide, so that the sliding blocks slide in the sliding grooves, the limiting plate is pushed to move, the buffering plate connected with the limiting plate is attached to the outer side of the piston rod, and therefore the moving track of the piston rod is limited; and the situation that a piston rod in the hydraulic cylinder shakes when the hydraulic cylinder runs is reduced, so that the working precision and efficiency of the hydraulic cylinder are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder guides, in particular to a hydraulic cylinder guide device. Background Art

[0002] Hydraulic cylinder is a common hydraulic actuator, which is widely used in hydraulic systems of various machines. Its main function is to convert hydraulic energy into mechanical energy to realize linear reciprocating motion. There are various classification methods for hydraulic cylinders. For example, according to the movement mode, it can be divided into linear reciprocating motion type and rotary swing type; according to the structural form, it can be divided into piston type, plunger type, multi-stage telescopic sleeve type, etc. The working performance of the hydraulic cylinder is affected by the hydraulic system, so it is necessary to select the appropriate hydraulic cylinder type, size and working pressure according to the actual working conditions. In addition, the hydraulic cylinder has some significant advantages, such as being able to generate greater power under the same volume, easy to achieve stepless speed regulation, stable operation, simple control and adjustment, etc. However, it also has some disadvantages, such as being sensitive to oil temperature changes and possible energy loss during the working process. In general, hydraulic cylinders are widely used in industry, agriculture, construction, mining and other fields, which can improve production efficiency, reduce labor costs, and reduce the labor intensity of workers, and have played a positive role in promoting the development of various industries. However, it should be noted that in actual applications, the hydraulic cylinder should be reasonably selected and designed, and regular maintenance and maintenance should be carried out to ensure its long-term stable working performance.

[0003] In the actual use of hydraulic cylinders, due to the lack of necessary guiding equipment, the piston rod loses effective support and restraint during operation, and will shake. This shaking will not only affect the working accuracy of the hydraulic cylinder, causing instability and deviation of the output force, but also reduce its working efficiency and increase energy loss. Therefore, in order to ensure the normal operation of the hydraulic cylinder and improve its stability, it is necessary to set up special guiding equipment to guide and restrain the movement of the piston rod. Utility Model Content

[0004] The purpose of the utility model is to provide a guide device for a hydraulic cylinder to solve the problem that the hydraulic cylinder lacks a guide device in actual use, and the piston rod loses effective support and restraint, resulting in shaking. This shaking not only affects the working accuracy of the hydraulic cylinder, making the output force unstable and deviating, but also reduces working efficiency, increases energy loss, and thus affects the overall performance.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guiding device for a hydraulic cylinder, comprising an outer shell, a limiting part and a sliding groove: the sliding groove is opened at the top of the outer shell, the sliding groove passes through the outer shell, the limiting part is arranged inside the sliding groove, and the limiting part includes a sliding block slidably connected to the inside of the sliding groove, a limiting plate welded to the bottom end of the sliding block, and a buffer plate fixed to the lower end of the limiting plate.

[0006] By adopting the above technical solution, when the piston rod needs to be guided, the sliding blocks at the upper and lower ends are first slid so that the sliding blocks slide in the sliding groove, pushing the limiting plate to move, so that the buffer plate connected to the limiting plate fits the outer side of the piston rod, thereby limiting the movement trajectory of the piston rod and reducing the shaking of the piston rod inside the hydraulic cylinder during operation, thereby improving the working accuracy and efficiency of the hydraulic cylinder.

[0007] Preferably, fixing parts are provided at the upper and lower ends of the shell, and the fixing parts include a mounting block welded to the outer side of the shell and a mounting groove opened on one side of the mounting block, and the mounting groove is located on the side of the mounting block facing the sliding block.

[0008] By adopting the above technical solution, the mounting block is used to provide mounting conditions for the components of the fixing part, and the mounting groove is used to install the spring.

[0009] Preferably, the fixing portion further comprises a spring welded to the inner wall of the mounting groove and a fixing block fixed to one end of the spring, wherein the fixing block is located at an end of the spring away from the mounting block.

[0010] By adopting the above technical solution, the spring has a reset function, driving the fixed block to move, and the fixed block is used to insert into the fixed groove, so as to fix the sliding block.

[0011] Preferably, a plurality of fixing grooves are formed on one side of the sliding block, and a telescopic column is fixedly formed on the inner wall of the mounting groove, and the telescopic column is located inside the spring.

[0012] By adopting the above technical solution, the distances between the multiple fixing grooves are customized for the sliding of the fixing block, and the telescopic column is used to keep the fixing block moving smoothly.

[0013] Preferably, a connecting portion is provided on the side of the shell away from the sliding groove, and the connecting portion includes a mounting plate welded to one side of the shell, a sealing gasket is fixed on one side of the mounting plate, and the sealing gasket is located on the side of the mounting plate away from the shell.

[0014] By adopting the above technical solution, the mounting plate is used to connect the device to the hydraulic cylinder, and the sealing gasket is used to firmly seal the connection between the device and the hydraulic cylinder.

[0015] Preferably, the connecting portion includes a mounting hole opened on one side of the mounting plate, and the mounting hole passes through the mounting plate.

[0016] By adopting the above technical solution, the mounting hole is used for nut mounting.

[0017] Preferably, the connecting portion further comprises a nut slidably connected to the mounting hole, and a nut is sleeved on one end of the nut.

[0018] By adopting the above technical solution, the equipment and the hydraulic cylinder are firmly fixed through the cooperation of the nut and the nut.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. By providing a limiting part, when the piston rod needs to be guided, the sliding blocks at the upper and lower ends are first slid to make the sliding blocks slide in the sliding groove, pushing the limiting plate to move, so that the buffer plate connected to the limiting plate fits the outer side of the piston rod, thereby limiting the moving trajectory of the piston rod, reducing the shaking of the piston rod inside the hydraulic cylinder during operation, thereby improving the working accuracy and efficiency of the hydraulic cylinder;

[0021] 2. By providing a fixing part, when the sliding block slides to a suitable position, the fixing block is released first, and then the fixing block is pushed to move into the corresponding fixing groove on the sliding block under the action of the reset function of the spring, and the telescopic column keeps the fixing block moving smoothly, so that the sliding block can be fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main structure of the utility model device;

[0023] Figure 2 This is a schematic diagram of the structure of the limiting part of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the fixing part of the utility model;

[0025] Figure 4 This is a schematic diagram of the structure of the connecting part of the utility model.

[0026] In the figure: 1. shell; 2. limiting part; 201. sliding block; 202. limiting plate; 203. buffer plate; 204. fixing groove; 3. fixing part; 301. fixing block; 302. mounting block; 303. mounting groove; 304. spring; 305. telescopic column; 4. connecting part; 401. mounting plate; 402. sealing gasket; 403. mounting hole; 404. nut; 405. nut; 5. sliding groove. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment 1

[0029] See also Figure 1 and Figure 2 , this practical example provides a technical solution: a guide device for a hydraulic cylinder, comprising a shell 1, a limiting part 2, a fixing part 3, a connecting part 4 and a sliding groove 5: the shell 1 is designed as an arc, which is used to provide installation conditions for the parts of the guide device for the hydraulic cylinder, the sliding groove 5 is opened at the top of the shell 1, the sliding groove 5 is designed as a rectangle, which is used for the sliding of the sliding block 201, and the sliding groove 5 runs through the shell 1, the limiting part 2 is arranged inside the sliding groove 5, and the limiting part 2 is provided with two, which are respectively installed at the upper end and the lower end of the shell 1, and are used to limit the moving trajectory of the piston rod, the limiting part 2 includes a sliding block 201 slidably connected to the sliding groove 5, the sliding block 201 is designed as a rectangle, which is used to install a limiting plate 202, the limiting plate 202 welded to the bottom end of the sliding block 201, the limiting plate 202 is designed as an arc, which is used to limit the moving trajectory of the piston rod, and the buffer plate 203 fixed at the lower end of the limiting plate 202, the buffer plate 203 is designed as an arc, which is used to buffer the connection between the limiting plate 202 and the piston rod to avoid damage to the piston rod.

[0030] When the piston rod needs to be guided, first slide the sliding blocks 201 at the upper and lower ends so that the sliding blocks 201 slide in the sliding groove 5, push the limiting plate 202 to move, and make the buffer plate 203 connected to the limiting plate 202 fit the outer side of the piston rod, thereby limiting the movement trajectory of the piston rod and reducing the shaking of the piston rod inside the hydraulic cylinder during operation, thereby improving the working accuracy and efficiency of the hydraulic cylinder.

[0031] Embodiment 2

[0032] See also Figure 3A guide device for a hydraulic cylinder, comprising a fixing block 301, a mounting block 302, a mounting groove 303, a spring 304, a telescopic column 305 and a fixing groove 204: a fixing portion 3 is provided at the upper and lower ends of a housing 1, the fixing portion 3 comprises a mounting block 302 welded to the outer side of the housing 1, the mounting block 302 is rectangular in design, and is used to provide installation conditions for the components of the fixing portion 3, a mounting groove 303 is provided on one side of the mounting block 302, the mounting groove 303 is rectangular in design, and is used to install the spring 304, the mounting groove 303 is located on the side of the mounting block 302 facing the sliding block 201, and the fixing portion 3 also comprises a spring welded to the inner wall of the mounting groove 303 Spring 304, spring 304 has a reset function, driving the fixed block 301 to move, the fixed block 301 is fixedly arranged at one end of the spring 304, the fixed block 301 is of rectangular design, and is used to be inserted into the fixed groove 204, so as to fix the sliding block 201, the fixed block 301 is located at one end of the spring 304 away from the mounting block 302, a plurality of fixed grooves 204 are provided on one side of the sliding block 201, and the distances between the plurality of fixed grooves 204 are customized for the sliding of the fixed block 301, a telescopic column 305 is fixedly arranged on the inner wall of the mounting groove 303, the telescopic column 305 is located in the spring 304, and the telescopic column 305 is used to keep the fixed block 301 moving smoothly.

[0033] When the sliding block 201 slides to a suitable position, the fixing block 301 is released first, and then the fixing block 301 is pushed to move into the corresponding fixing groove 204 on the sliding block 201 under the action of the reset function of the spring 304, and the telescopic column 305 keeps the fixing block 301 moving smoothly, so that the sliding block 201 can be fixed.

[0034] Embodiment 3

[0035] See also Figure 4 , a guide device for a hydraulic cylinder, comprising a mounting plate 401, a sealing gasket 402, a mounting hole 403, a nut 404 and a nut 405: a connecting portion 4 is provided on the side of the housing 1 away from the sliding groove 5, the connecting portion 4 comprises a mounting plate 401 welded to one side of the housing 1, the mounting plate 401 is designed as an arc, used to connect the device to the hydraulic cylinder, a sealing gasket 402 is fixed on one side of the mounting plate 401, the sealing gasket 402 is used to firmly seal the connection between the device and the hydraulic cylinder, the sealing gasket 402 is located on the side of the mounting plate 401 away from the housing 1, the connecting portion 4 comprises a mounting hole 403 opened on one side of the mounting plate 401, the mounting hole 403 is designed as an arc, used for installing the nut 404, the mounting hole 403 passes through the mounting plate 401, the connecting portion 4 also comprises a nut 404 slidably connected to the mounting hole 403, one end of the nut 404 is sleeved with a nut 405, and the device and the hydraulic cylinder are firmly fixed through the cooperation of the nut 404 and the nut 405.

[0036] Align the mounting plate 401 with the hydraulic cylinder, then rotate the nut 404 so that the nut 404 passes through the mounting hole 403, and then rotate the nut 405 to firmly fix the mounting plate 401 and the hydraulic cylinder.

[0037] Working principle: First, match the mounting plate 401 with the hydraulic cylinder, then rotate the nut 404 so that the nut 404 passes through the mounting hole 403, and then rotate the nut 405 to firmly fix the mounting plate 401 and the hydraulic cylinder; secondly, when it is necessary to guide the piston rod, first slide the sliding blocks 201 at the upper and lower ends so that the sliding block 201 slides in the sliding groove 5, pushes the limiting plate 202 to move, and makes the buffer plate 203 connected to the limiting plate 202 fit the outer side of the piston rod, thereby limiting the movement trajectory of the piston rod, reducing the shaking of the piston rod inside the hydraulic cylinder during operation, thereby improving the working accuracy and efficiency of the hydraulic cylinder; finally, when the sliding block 201 slides to the appropriate position, first release the fixed block 301, and then under the action of the reset function of the spring 304, the fixed block 301 is pushed to move into the corresponding fixed groove 204 on the sliding block 201, and the telescopic column 305 keeps the fixed block 301 moving smoothly, so that the sliding block 201 can be fixed.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A guide device for a hydraulic cylinder, characterized in that: include: Housing (1); A sliding groove (5), wherein the sliding groove (5) is disposed at the top end of the housing (1), and the sliding groove (5) penetrates the housing (1); A limiting portion (2) is arranged inside the sliding groove (5), and the limiting portion (2) comprises a sliding block (201) slidably connected to the inside of the sliding groove (5), a limiting plate (202) welded to the bottom end of the sliding block (201), and a buffer plate (203) fixed to the lower end of the limiting plate (202).

2. A guide device for a hydraulic cylinder according to claim 1, characterized in that: The upper and lower ends of the housing (1) are provided with fixing parts (3), the fixing parts (3) comprising a mounting block (302) welded to the outside of the housing (1) and a mounting groove (303) opened on one side of the mounting block (302), the mounting groove (303) being located on the side of the mounting block (302) facing the sliding block (201).

3. A guide device for a hydraulic cylinder according to claim 2, characterized in that: The fixing portion (3) further comprises a spring (304) welded to the inner wall of the mounting groove (303) and a fixing block (301) fixed to one end of the spring (304); the fixing block (301) is located at one end of the spring (304) away from the mounting block (302).

4. A guide device for a hydraulic cylinder according to claim 3, characterized in that: A plurality of fixing grooves (204) are provided on one side of the sliding block (201), and a telescopic column (305) is fixedly provided on the inner wall of the installation groove (303), and the telescopic column (305) is located inside the spring (304).

5. A guide device for a hydraulic cylinder according to claim 1, characterized in that: A connecting portion (4) is provided on a side of the housing (1) away from the sliding groove (5), and the connecting portion (4) comprises a mounting plate (401) welded to one side of the housing (1), a sealing gasket (402) is fixedly provided on one side of the mounting plate (401), and the sealing gasket (402) is located on a side of the mounting plate (401) away from the housing (1).

6. A guide device for a hydraulic cylinder according to claim 5, characterized in that: The connecting portion (4) comprises a mounting hole (403) opened on one side of the mounting plate (401), and the mounting hole (403) passes through the mounting plate (401).

7. A guide device for a hydraulic cylinder according to claim 6, characterized in that: The connecting portion (4) further comprises a nut (404) slidably connected to the mounting hole (403), and a nut (405) is sleeved on one end of the nut (404).

Images