CN219062126U

CN219062126U - Electrohydraulic driving device with wear self-compensation function

Info

Publication number: CN219062126U
Application number: CN202223263360.XU
Authority: CN
Inventors: 任万奎
Original assignee: Chongqing Pengpai Zhiqu Technology Co ltd
Current assignee: Chongqing Pengpai Zhiqu Technology Co ltd
Priority date: 2022-12-06
Filing date: 2022-12-06
Publication date: 2023-05-23
Anticipated expiration: 2032-12-06

Abstract

The utility model relates to the technical field of electrohydraulic driving devices, in particular to an electrohydraulic driving device with abrasion self-compensation, which comprises a device outer shell, wherein a mounting cavity is formed in the device outer shell, one end in the mounting cavity is fixedly provided with a device inner shell, the other end in the mounting cavity is fixedly provided with a bearing component, the middle position of the bearing component is fixedly provided with an abrasion compensation shell, and the inside of the abrasion compensation shell is slidably provided with a piston rod. According to the utility model, the wear compensation shell, the sleeve, the first powerful compression spring, the telescopic rod, the limiting shell, the second powerful compression spring and other structures are arranged in the electrohydraulic driving device, so that when the piston rod in the electrohydraulic driving device is worn, the automatic wear compensation effect can be realized through the spring force, the using effect of the electrohydraulic driving device can be improved, and the problems that the sealing effect is poor and the piston rod needs to be replaced easily after the traditional electrohydraulic driving device is worn are avoided.

Description

Electrohydraulic driving device with wear self-compensation function

Technical Field

The utility model relates to the technical field of electrohydraulic driving devices, in particular to an electrohydraulic driving device with abrasion self-compensation function.

Background

The electrohydraulic driving device is a driving device equipment integrating the technologies of hydraulic, control, electromechanical, computer, communication and the like, and can rapidly and stably accurately control the position of a controlled object, and is applied to the driving and control of various valves, and commonly comprises hydraulic pumps and other devices.

However, the electro-hydraulic driving devices commonly used in the market at present have a few defects in daily use, for example: the piston rod structure inside the common electrohydraulic driving device in the market is easy to wear in the long-term use process, the problem that the piston sealing effect is poor can appear in the traditional piston rod after the piston rod is worn occurs, and once the problem appears, the piston rod can only be replaced, so that a great amount of economy and material loss are caused.

Disclosure of Invention

In order to solve the technical problems in the background technology, the utility model provides an electrohydraulic driving device with abrasion self-compensation, which comprises a device shell, wherein a mounting cavity is formed in the device shell, one end in the mounting cavity is fixedly provided with a device inner shell, the other end in the mounting cavity is fixedly provided with a bearing component, the middle position of the bearing component is fixedly provided with an abrasion compensation shell, the inside of the abrasion compensation shell is slidably provided with a piston rod, the inside of the abrasion compensation shell is fixedly welded with a sleeve, the inside of the sleeve is fixedly connected with a telescopic rod through a first powerful compression spring, one end of the telescopic rod is provided with a limiting component, the other end of the telescopic rod is fixedly welded with a limiting shell, and the surfaces of the limiting shells on two sides of the telescopic rod are fixedly connected with the inner surface of the abrasion compensation shell through a second powerful compression spring.

Preferably, oil drain holes are formed in the surface of the inner shell of the device at equal intervals.

Preferably, the mounting cavity is internally provided with a hydraulic spring member.

Preferably, the bearing component is internally provided with an accumulation sponge, the bearing component on one side of the accumulation sponge is internally provided with an oil seal component, and the outer side of the oil seal component is fixedly provided with a dust ring.

Preferably, one end of the piston rod extends into the inner housing of the device and is fixedly provided with a piston member, and one side of the piston member is fixedly provided with a check valve.

Preferably, the other end of the piston rod extends to the outside of the device shell and is fixedly provided with a crashed head, and the surface of the crashed head is clamped with a silencing rubber component.

Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: according to the utility model, the wear compensation shell, the sleeve, the first powerful compression spring, the telescopic rod, the limiting shell, the second powerful compression spring and other structures are arranged in the electrohydraulic driving device, so that when the piston rod in the electrohydraulic driving device is worn, the automatic wear compensation effect can be realized through the spring force, the using effect of the electrohydraulic driving device can be improved, and the problems that the sealing effect is poor and the piston rod needs to be replaced easily after the traditional electrohydraulic driving device is worn are avoided.

Drawings

FIG. 1 is a schematic view of an electro-hydraulic drive with wear self-compensation according to a first embodiment;

FIG. 2 is a schematic view of the internal structure of the present utility model;

FIG. 3 is a schematic view of the internal structure of the wear compensating housing of the present utility model.

Reference numerals: 1. a device housing; 2. a mounting cavity; 3. an inner housing of the device; 4. a bearing member; 5. an oil drain hole; 6. a hydraulic spring member; 7. a pressure accumulating sponge; 8. an oil seal member; 9. a dust ring; 10. a wear compensating housing; 11. a piston rod; 12. a piston member; 13. a check valve; 14. a crashed head; 15. a sound deadening rubber member; 16. a sleeve; 17. a first strong compression spring; 18. a telescopic rod; 19. a limit housing; 20. and a second strong compression spring.

Detailed Description

Example 1

As shown in fig. 1-3, the electro-hydraulic driving device with wear self-compensation provided by the utility model comprises a device housing 1, wherein a mounting cavity 2 is formed in the device housing 1, one end in the mounting cavity 2 is fixedly provided with a device inner shell 3, the other end in the mounting cavity 2 is fixedly provided with a bearing component 4, a wear compensation shell 10 is fixedly arranged at the middle position of the bearing component 4, a piston rod 11 is slidably arranged in the wear compensation shell 10, a sleeve 16 is fixedly welded on the inner side of the wear compensation shell 10, a telescopic rod 18 is fixedly connected in the sleeve 16 through a first powerful compression spring 17, one end of the telescopic rod 18 is provided with a limiting component, the other end of the telescopic rod 18 is fixedly welded with a limiting shell 19, and the surfaces of the limiting shells 19 on two sides of the telescopic rod 18 are fixedly connected with the inner surface of the wear compensation shell 10 through a second powerful compression spring 20.

In this embodiment, before the electrohydraulic driving device is used, the use safety between each part inside the device is checked, then the device is integrally and fixedly installed and connected to be used as needed, normal use is started, in the use process, the piston rod 11 continuously reciprocates, obvious abrasion condition occurs on the surface of the piston rod 11 in the long-term movement process, when abrasion occurs, the limiting shell 19 continuously moves towards the central position inside the abrasion compensation shell 10 under the action of the first powerful compression spring 17 and the second powerful compression spring 20, the piston rod 11 can be pressed close to the surface of the piston rod 11 at any time after abrasion, so that the abrasion automatic compensation effect is achieved, and through the structures such as the abrasion compensation shell 10, the sleeve 16, the first powerful compression spring 17, the telescopic rod 18, the limiting shell 19 and the second powerful compression spring 20, when abrasion occurs on the inner piston rod 11 of the device, the abrasion automatic compensation effect can be achieved through the springs, the use effect of the device can be improved, and the problem that the traditional device is easy to have poor abrasion and the sealing effect and the need of replacement of the piston rod 11 is avoided.

Example two

As shown in fig. 1-3, in comparison with the first embodiment, the electro-hydraulic driving device with wear self-compensation according to the present utility model further includes an oil drain hole 5 provided on a surface of the device inner housing 3 at equal intervals, a hydraulic spring member 6 provided inside the installation cavity 2, a pressure accumulation sponge 7 provided inside the bearing member 4, an oil seal member 8 provided inside the bearing member 4 on one side of the pressure accumulation sponge 7, a dust ring 9 fixedly provided outside the oil seal member 8, a piston rod 11 having one end extending to the inside of the device inner housing 3 and fixedly mounted with a piston member 12, a check valve 13 fixedly mounted on one side of the piston member 12, a crashed head 14 extending to the outside of the device outer housing 1 and fixedly mounted with the other end of the piston rod 11, and a noise reduction rubber member 15 clamped on a surface of the crashed head 14.

In this embodiment, in the actual use process, the piston rod 11 drives the piston component 12 to extrude the hydraulic oil inside the device inner shell 3, the hydraulic oil is discharged through the oil drain hole 5 on the surface of the device inner shell 3 after being extruded, and the hydraulic oil discharged from the device inner shell 3 flows back to the inside of the device inner shell 3 through the oil return hole on the surface of the device inner shell 3 at the check valve 13, after the external force disappears, the piston rod 11 returns under the elastic force of the hydraulic spring component 6, the oil flows back through the opened check valve 13, so that the operation is realized, and the sleeve 16 and the telescopic rod 18 on the limit shell 19 play a limiting role on the position of the limit shell 19 in the operation process of the piston rod 11, so that the position of the limit shell 19 cannot be displaced in the operation process of the piston rod 11 is ensured.

The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.

Claims

1. The utility model provides an electrohydraulic drive device with wearing and tearing self-compensating, a serial communication port, including device shell (1), install cavity (2) have been seted up to the inside of device shell (1), the inside one end fixed mounting of installation cavity (2) has device inner shell (3), the inside other end fixed mounting of installation cavity (2) has bearing part (4), the intermediate position department fixed mounting of bearing part (4) has wearing and tearing compensation casing (10), the inside slidable mounting of wearing and tearing compensation casing (10) has piston rod (11), the inboard fixed welding of wearing and tearing compensation casing (10) has sleeve pipe (16), the inside of sleeve pipe (16) is through first powerful compression spring (17) fixedly connected with telescopic link (18), and the one end of telescopic link (18) is provided with spacing part, the other end fixed welding of telescopic link (18) has spacing casing (19), spacing casing (19) surface all through second powerful compression spring (20) and the internal surface fixed connection of wearing and tearing compensation casing (10).

2. Electro-hydraulic drive with self-compensating wear according to claim 1, characterized in that the surface of the inner housing (3) of the device is provided with equally spaced oil drain holes (5).

3. Electro-hydraulic drive with self-compensating wear according to claim 1, characterized in that the interior of the installation cavity (2) is provided with a hydraulic spring element (6).

4. The electrohydraulic driving device with wear self-compensation according to claim 1, characterized in that an accumulator sponge (7) is provided inside the bearing part (4), an oil seal part (8) is provided inside the bearing part (4) at one side of the accumulator sponge (7), and a dust-proof ring (9) is fixedly provided outside the oil seal part (8).

5. An electrohydraulic drive with wear self-compensation according to claim 1, characterized in that one end of the piston rod (11) extends into the interior of the inner housing (3) of the device and is fixedly equipped with a piston part (12), a non-return valve (13) being fixedly mounted on one side of the piston part (12).

6. An electrohydraulic driving device with wear self-compensation according to claim 1, characterized in that the other end of the piston rod (11) extends outside the device housing (1) and is fixedly equipped with a crashed head (14), the surface of the crashed head (14) being clamped with a noise damping rubber part (15).