Combined hydraulic actuator

Abstract

The utility model discloses a combined hydraulic actuator which comprises a hydraulic actuator body, oil inlet pipes and first connectors, the oil inlet pipes are installed at the two ends of the hydraulic actuator body, the first connectors are installed on the oil inlet pipes, the first connectors are connected with oil inlet mechanisms, and the oil inlet mechanisms can filter oil before oil is fed into the hydraulic actuator body. The oil inlet mechanism comprises a supporting cylinder and an oil box, one end of the supporting cylinder is connected to the first connector, and the oil box is installed at the bottom of the supporting cylinder. And the interiors of the supporting cylinder and the filter screen cylinder can be conveniently opened for convenient cleaning, and the maintenance cost of the hydraulic actuator is reduced.

Description

Technical Field

[0001] The utility model relates to the field of hydraulic actuators, in particular to a combined hydraulic actuator. Background Art

[0002] The hydraulic actuator uses hydraulic transmission as power, and its notable feature is its large driving force. The output driving force of the hydraulic actuator is higher than that of the pneumatic actuator and the electric actuator, and the output torque of the hydraulic actuator can be precisely adjusted according to the requirements and reflected through the hydraulic instrument. The transmission of the hydraulic actuator is more stable and reliable, with buffering and no collision, and is suitable for working environments with high transmission requirements. The hydraulic actuator has high adjustment accuracy and fast response speed, and can achieve high-precision control. The hydraulic actuator with publication number CN214466494U retrieved from the patent office database can have high adjustment accuracy, simple and firm structure, easy use and long service life. However, the hydraulic actuator does not have a filtering mechanism before the oil inlet. Therefore, after long-term use, it is difficult to filter the impurities in the hydraulic oil, and it is necessary to frequently replace the hydraulic oil to ensure the normal operation of the hydraulic actuator, which not only increases the maintenance cost, but also reduces the service life of the hydraulic actuator.

[0003] Therefore, it is necessary to invent a combined hydraulic actuator. Utility Model Content

[0004] The purpose of the utility model is to provide a combined hydraulic actuator to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A combined hydraulic actuator comprises a hydraulic actuator body, an oil inlet pipe and a joint. Oil inlet pipes are installed at both ends of the hydraulic actuator body. A joint is installed on the oil inlet pipe. An oil inlet mechanism is connected to the joint. The oil inlet mechanism can filter oil before the hydraulic actuator body is fed with oil.

[0007] In a preferred embodiment of the present utility model, the oil inlet mechanism includes a support tube and an oil box, one end of the support tube is connected to the joint 1, and the oil box is installed at the bottom of the support tube.

[0008] In a preferred embodiment of the present utility model, a cylinder cover is threadedly mounted on the other end of the support cylinder, an oil tank is mounted inside the oil box, and a booster pump is mounted on one end of the oil tank.

[0009] In a preferred embodiment of the utility model, a filter screen cartridge is inserted into the interior of the support cartridge, a limit block is installed at one end of the filter screen cartridge, and a support cap is threadedly installed at the other end of the filter screen cartridge.

[0010] In a preferred embodiment of the present utility model, a connecting oil pipe 1 is installed on the inner wall of the support cover, and a joint 2 is installed on the side end of the connecting oil pipe 1.

[0011] In a preferred embodiment of the present utility model, the second joint is connected to a second connecting oil pipe, and the other end of the second connecting oil pipe is connected to the oil tank.

[0012] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

[0013] Beneficial effects:

[0014] By combining and connecting the oil inlet mechanism to the oil inlet end of the hydraulic actuator body, the hydraulic actuator is not only convenient for filtering the incoming hydraulic oil, but also convenient for opening the inside of the support cylinder and the filter cylinder for convenient cleaning, thereby reducing the maintenance cost of the hydraulic actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a combined hydraulic actuator;

[0016] Figure 2 A schematic diagram of a combined hydraulic actuator Figure 1 ;

[0017] Figure 3 A schematic diagram of a combined hydraulic actuator Figure 2 ;

[0018] Figure 4 A schematic diagram of the installation of a support cover in a combined hydraulic actuator;

[0019] Figure 5 A schematic diagram of a filter screen cylinder in a combined hydraulic actuator;

[0020] Figure 6 The present invention is a schematic diagram of the installation of connecting oil pipes in a combined hydraulic actuator.

[0021] In the figure: hydraulic actuator body 1, oil inlet pipe 11, connector 1 12, oil inlet mechanism 2, support cylinder 21, cylinder cover 22, filter screen cylinder 23, support cover 24, connecting oil pipe 1 25, connector 2 251, connecting oil pipe 2 252, limit block 26, oil box 27, oil tank 28, booster pump 29. DETAILED DESCRIPTION

[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0023] Example 1: Figure 1-Figure 6 ,

[0024] It includes a hydraulic actuator body 1, an oil inlet pipe 11 and a joint 12. The two ends of the hydraulic actuator body 1 are both equipped with oil inlet pipes 11, and the oil inlet pipe 11 is equipped with a joint 12. Hydraulic oil is introduced into the hydraulic actuator body 1 through the oil inlet pipe 11 and the joint 12. The joint 12 is connected with an oil inlet mechanism 2. The oil inlet mechanism 2 can filter the hydraulic oil before the hydraulic actuator body 1 is fed with oil. By combining the oil inlet end of the hydraulic actuator body 1 with the oil inlet mechanism 2, the hydraulic actuator is not only convenient for filtering the incoming hydraulic oil, but also convenient for opening the inside of the support cylinder 21 and the filter screen cylinder 23 for convenient cleaning.

[0025] The oil inlet mechanism 2 includes a support cylinder 21 and an oil box 27. One end of the support cylinder 21 is connected to the joint 12. The support cylinder 21 is used to support and install the filter cylinder 23 and to transport hydraulic oil to the oil inlet pipe 11. The oil box 27 is installed at the bottom of the support cylinder 21. The oil box 27 can not only support the support cylinder 21 to increase stability, but also catch the dripping hydraulic oil. The other end of the support cylinder 21 is threadedly installed with a cylinder cover 22. The cylinder cover 22 is used to seal and close the support cylinder 21. A sealing gasket is provided at the connection between the cylinder cover 22 and the support cylinder 21 to reduce the risk of oil leakage from the support cylinder 21. An oil tank 28 is installed inside the oil box 27. The oil tank 28 stores hydraulic oil. A booster pump 29 is installed at one end of the oil tank 28. The model of the booster pump 29 is HW15-70A. The pressure in the oil tank 28 is increased by the booster pump 29. After the pressure in the oil tank 28 is increased, the hydraulic oil in the oil tank 28 is connected to the oil pipe 22. 52 enters the filter cylinder 23 for filtration, the filter cylinder 23 is inserted into the interior of the support cylinder 21, the filter cylinder 23 is used to filter the hydraulic oil before entering the hydraulic actuator, one end of the filter cylinder 23 is installed with a limit block 26, the limit block 26 is inserted into the interior of the support cylinder 21, and is used to limit the position of the filter cylinder 23, the other end of the filter cylinder 23 is threadedly installed with a support cover 24, the support cover 24 is not only used to close the filter cylinder 23, but also used to support and install the connecting oil pipe 25, the inner wall of the support cover 24 is installed with a connecting oil pipe 25, after the connecting oil pipe 25 enters the oil, the oil is guided into the filter cylinder 23, the side end of the connecting oil pipe 25 is installed with a joint 251, the connecting oil pipe 25 and the oil tank 28 are connected through the joint 251 and the connecting oil pipe 252, the connecting oil pipe 252 is connected to the joint 251, and the other end of the connecting oil pipe 252 is connected to the oil tank 28.

[0026] The working principle of the utility model is as follows: one end of the support cylinder 21 is connected to the joint 12, the oil box 27 is installed at the bottom of the support cylinder 21, the other end of the support cylinder 21 is threadedly installed with a cylinder cover 22, the interior of the oil box 27 is installed with an oil tank 28, the interior of the support cylinder 21 is inserted into a filter cylinder 23, one end of the filter cylinder 23 is installed with a limit block 26, the other end of the filter cylinder 23 is threadedly installed with a support cover 24, the inner wall of the support cover 24 is installed with a connecting oil pipe 1 25, the side end of the connecting oil pipe 1 25 is installed with a joint 251, the joint 251 is connected with a connecting oil pipe 252, the other end of the connecting oil pipe 252 is connected to the oil tank 28, and the oil in the oil tank 28 is increased by a booster pump 29. After the pressure in the oil tank 28 increases, the hydraulic oil in the oil tank 28 enters the filter cylinder 23 for filtration through the connecting oil pipe 252 and the connecting oil pipe 1 25. After the hydraulic oil is filtered, it enters the oil inlet pipe 11 through the support cylinder 21 and finally enters the hydraulic actuator body 1. The cylinder cover 22 is rotated to remove and the filter cylinder 23 is pulled out from the support cylinder 21, which is convenient for cleaning the outside of the filter cylinder 23. The support cover 24 is rotated to remove and the inside of the filter cylinder 23 is convenient for cleaning. The oil inlet end of the hydraulic actuator body 1 is assembled and connected to the oil inlet mechanism 2, so that the hydraulic actuator is not only convenient for filtering the incoming hydraulic oil, but also convenient for opening the inside of the support cylinder 21 and the filter cylinder 23 for convenient cleaning.

[0027] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A combined hydraulic actuator, comprising a hydraulic actuator body (1), an oil inlet pipe (11) and a connector (12), wherein the oil inlet pipe (11) is installed at both ends of the hydraulic actuator body (1), and the connector (12) is installed on the oil inlet pipe (11), characterized in that: The first connector (12) is connected to an oil inlet mechanism (2), and the oil inlet mechanism (2) can filter the oil before the oil enters the hydraulic actuator body (1).

2. A combined hydraulic actuator according to claim 1, characterized in that: The oil inlet mechanism (2) comprises a support tube (21) and an oil box (27), one end of the support tube (21) is connected to a joint 1 (12), and the oil box (27) is installed at the bottom of the support tube (21).

3. A combined hydraulic actuator according to claim 2, characterized in that: A cylinder cover (22) is threadedly mounted on the other end of the support cylinder (21), an oil tank (28) is mounted inside the oil box (27), and a booster pump (29) is mounted on one end of the oil tank (28).

4. A combined hydraulic actuator according to claim 2, characterized in that: A filter screen cylinder (23) is inserted into the interior of the support cylinder (21), a limit block (26) is installed at one end of the filter screen cylinder (23), and a support cover (24) is threadedly installed at the other end of the filter screen cylinder (23).

5. A combined hydraulic actuator according to claim 4, characterized in that: The inner wall of the support cover (24) is provided with a connecting oil pipe 1 (25), and the side end of the connecting oil pipe 1 (25) is provided with a joint 2 (251).

6. A combined hydraulic actuator according to claim 5, characterized in that: The second joint (251) is connected to a second connecting oil pipe (252), and the other end of the second connecting oil pipe (252) is connected to an oil tank (28).

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