Swing type hydraulic actuator

Abstract

The utility model discloses a swing type hydraulic actuator which comprises a first shell and a swing mechanism. The swing mechanism comprises a movable plate slidably connected into the first shell, a first oil storage cavity and a second oil storage cavity, the first oil storage cavity and the second oil storage cavity are formed in the first shell, a first oil hole is formed in the inner side wall of the first oil storage cavity, and a second oil hole is formed in the inner side wall of the second oil storage cavity. Second shells are fixedly connected to the two sides of the movable plate correspondingly, and supporting plates are movably connected to the interiors of the second shells. According to the swing type hydraulic actuator, the swing mechanism is arranged on the first shell, after hydraulic oil sequentially enters and exits from the first oil storage cavity and the second oil storage cavity, the movable plate can move back and forth under the action of the hydraulic oil, and therefore the gear can drive the output rotating shaft to rotate back and forth under the action of the rack; through the arrangement, the hydraulic actuator can more simply realize reciprocating motion operation on equipment, so that the use cost of the hydraulic actuator is reduced.

Description

Technical Field

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

[0002] As we all know, the actuator is an indispensable and important component of the automatic control system. Its function is to receive the control signal sent by the controller and change the size of the controlled medium, so as to maintain the controlled variable at the required value or within a certain range. The actuator can be divided into three categories according to its energy form: pneumatic, hydraulic and electric.

[0003] The existing hydraulic actuator has a relatively complex internal structure, which results in high cost when used in conjunction with a control device for reciprocating operations. To this end, we propose a swing-type hydraulic actuator. Utility Model Content

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

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a swing type hydraulic actuator, comprising: a first housing and a swing mechanism;

[0006] The swing mechanism includes a movable plate slidably connected to the inside of the first shell and a first oil storage chamber and a second oil storage chamber arranged inside the first shell, the inner wall of the first oil storage chamber is provided with a first oil hole, the inner wall of the second oil storage chamber is provided with a second oil hole, both sides of the movable plate are fixedly connected to the second shell, the inside of the second shell is movably connected to a support plate, the support plate is fixedly connected to the inner wall of the first shell, one side of the movable plate is provided with a groove, the inside of the groove is fixedly embedded with a rack, one side of the rack is meshed with a gear, the inside of the gear is fixedly embedded with an output shaft, and the output shaft is rotatably connected to the first shell through a bearing.

[0007] By adopting the above technical scheme, when the hydraulic oil enters the first oil storage chamber through the first oil hole and the hydraulic oil in the second oil storage chamber is discharged through the second oil hole, the movable plate can move toward a position close to the second oil storage chamber under the action of the hydraulic oil, and when the hydraulic oil enters the second oil storage chamber through the second oil hole and the hydraulic oil in the first oil storage chamber is discharged through the first oil hole, the movable plate can move toward a position close to the first oil storage chamber, so that the movable plate can be moved back and forth inside the first shell by the inflow and outflow of hydraulic oil, and then the rack can move back and forth under the action of the movable plate, and the gear can drive the output shaft to reciprocate under the action of the rack.

[0008] Preferably, the outer surface of the movable plate is covered with a sealing gasket, and the sealing gasket is attached to the inner wall of the first shell.

[0009] By adopting the above technical solution, the contact surface between the movable plate and the inner wall of the first shell can have good sealing performance, thereby making the first oil storage chamber and the second oil storage chamber in a completely isolated state.

[0010] Preferably, a slider is slidably connected to the interior of the second shell, and one side of the support plate extends to the interior of the second shell and is fixedly connected to the slider.

[0011] By adopting the above technical solution, the movable plate can drive the second shell to slide on the slider of the support plate while moving, so that the movable plate can remain stable when moving back and forth.

[0012] Preferably, one side of the sliding block is fixedly connected to a limit spring, and one end of the limit spring is fixedly connected to the inner wall of the second shell.

[0013] By adopting the above technical solution, when the hydraulic oil in the first oil storage chamber and the second oil storage chamber is discharged, the second housing can drive the movable plate to move back to the initial position under the reset action of the limit spring.

[0014] Preferably, a fixing block is evenly fixedly connected to the outer side of the first shell, and a threaded rod is threadedly connected to the inner side of the fixing block.

[0015] By adopting the above technical solution, the threaded rod can be screwed into the reserved threaded hole on the mounting base, so that the first shell can be fixedly mounted by the fixing block.

[0016] Preferably, one end of the threaded rod is fixedly connected with a protrusion.

[0017] By adopting the above technical solution, it is possible to easily screw the threaded rod.

[0018] Preferably, a slot is provided on one side of the protrusion.

[0019] By adopting the above technical solution, it is possible to easily operate the threaded rod by using a wrench.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] The swing-type hydraulic actuator uses a swing mechanism on the first housing to allow the hydraulic oil to flow in and out of the first oil storage chamber and the second oil storage chamber in sequence. The movable plate can move back and forth under the action of the hydraulic oil, so that the gear can drive the output shaft to reciprocate under the action of the rack. Through the above arrangement, the hydraulic actuator can more simply realize the reciprocating movement operation on the equipment, thereby reducing the use cost of the hydraulic actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the swing type hydraulic actuator of the utility model;

[0023] Figure 2 It is a structural schematic diagram of the first housing and the fixed block in the swing type hydraulic actuator of the utility model;

[0024] Figure 3 It is a structural schematic diagram of a support plate and a second housing in a swing type hydraulic actuator of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the threaded rod and the protrusion in the swing type hydraulic actuator of the utility model.

[0026] In the figure: 1. first housing; 10. fixed block; 11. threaded rod; 12. protrusion; 13. slot; 2. swing mechanism; 20. movable plate; 21. rack; 22. gear; 23. output shaft; 24. first oil storage chamber; 25. second oil storage chamber; 26. first oil hole; 27. second oil hole; 28. support plate; 29. ​​second housing; 201. limit spring; 202. slider; 203. sealing gasket; 204. 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] See also Figure 1-Figure 4 , the utility model provides a technical solution: a swing type hydraulic actuator, comprising: a first housing 1 and a swing mechanism 2;

[0029] Firstly, when the hydraulic oil enters the first oil storage chamber 24 through the first oil hole 26 and the hydraulic oil in the second oil storage chamber 25 is discharged through the second oil hole 27, the movable plate 20 can move toward a position close to the second oil storage chamber 25 under the action of the hydraulic oil, and when the hydraulic oil enters the second oil storage chamber 25 through the second oil hole 27 and the hydraulic oil in the first oil storage chamber 24 is discharged through the first oil hole 26, the movable plate 20 can move toward a position close to the first oil storage chamber 24, so that the movable plate 20 can move back and forth inside the first housing 1 through the inflow and outflow of the hydraulic oil, and then the rack 21 can move back and forth under the action of the movable plate 20, and the gear 22 can drive the output shaft 23 to reciprocate under the action of the rack 21; The swing mechanism 2 includes a movable plate 20 slidably connected to the inside of the first housing 1, and a first oil storage chamber 24 and a second oil storage chamber 25 arranged inside the first housing 1. The inner wall of the first oil storage chamber 24 is provided with a first oil hole 26, and the inner wall of the second oil storage chamber 25 is provided with a second oil hole 27. Both sides of the movable plate 20 are fixedly connected to the second housing 29, and the inside of the second housing 29 is movably connected to a support plate 28, and the support plate 28 is fixedly connected to the inner wall of the first housing 1. A groove 204 is provided on one side of the movable plate 20, and a rack 21 is fixedly embedded in the inside of the groove 204. A gear 22 is meshedly connected to one side of the rack 21, and an output shaft 23 is fixedly embedded in the inside of the gear 22. The output shaft 23 is rotatably connected to the first housing 1 through a bearing;

[0030] Secondly, in order to ensure that the contact surface between the movable plate 20 and the inner wall of the first shell 1 has good sealing performance, and thus the first oil storage chamber 24 and the second oil storage chamber 25 are in a completely isolated state, the outer surface of the movable plate 20 is covered with a sealing gasket 203, and the sealing gasket 203 is attached to the inner wall of the first shell 1; in order to enable the movable plate 20 to move while driving the second shell 29 to slide on the slider 202 of the support plate 28, so that the movable plate 20 can remain stable when moving back and forth, the interior of the second shell 29 is slidably connected with the slider 202, and one side of the support plate 28 extends to the interior of the second shell 29 and is fixedly connected to the slider 202; in order to enable the second shell 29 to slide on the slider 202 of the support plate 28 when the hydraulic oil in the first oil storage chamber 24 and the second oil storage chamber 25 is discharged, The second shell 29 can drive the movable plate 20 to move back to the initial position under the reset action of the limit spring 201. One side of the slider 202 is fixedly connected to the limit spring 201, and one end of the limit spring 201 is fixedly connected to the inner wall of the second shell 29. In order to enable the threaded rod 11 to be screwed into the reserved threaded hole on the mounting base, so as to facilitate the fixed installation of the first shell 1 through the fixing block 10, the outer side of the first shell 1 is evenly fixedly connected with the fixing block 10, and the internal thread of the fixing block 10 is connected with the threaded rod 11. In order to facilitate the screwing of the threaded rod 11, one end of the threaded rod 11 is fixedly connected with a protrusion 12. In order to facilitate the operation of the threaded rod 11 by a wrench, a slot 13 is provided on one side of the protrusion 12.

[0031] According to the above technical scheme, the working steps of this scheme are summarized and sorted out: when in use, when the hydraulic oil enters the first oil storage chamber 24 through the first oil hole 26, and the hydraulic oil in the second oil storage chamber 25 is discharged through the second oil hole 27, the movable plate 20 can move toward a position close to the second oil storage chamber 25 under the action of the hydraulic oil, and when the hydraulic oil enters the second oil storage chamber 25 through the second oil hole 27, and the hydraulic oil in the first oil storage chamber 24 is discharged through the first oil hole 26, the movable plate 20 can move toward a position close to the first oil storage chamber 24, so that the movable plate 20 can be moved back and forth inside the first shell 1 through the inflow and outflow of hydraulic oil, so that the rack 21 can move back and forth under the action of the movable plate 20, and the gear 22 can drive the output shaft 23 to reciprocate under the action of the rack 21.

[0032] Parts not involved in the present invention are the same as the prior art or can be implemented by the prior art. Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A swing type hydraulic actuator, characterized in that: include: A first housing (1) and a swing mechanism (2); The swing mechanism (2) comprises a movable plate (20) slidably connected to the inside of the first housing (1), and a first oil storage chamber (24) and a second oil storage chamber (25) arranged inside the first housing (1); the inner wall of the first oil storage chamber (24) is provided with a first oil hole (26); the inner wall of the second oil storage chamber (25) is provided with a second oil hole (27); both sides of the movable plate (20) are fixedly connected to the second housing (29); the inside of the second housing (29) is movably connected to a support plate (28); the support plate (28) is fixedly connected to the inner wall of the first housing (1); a groove (204) is provided on one side of the movable plate (20); a rack (21) is fixedly embedded in the inside of the groove (204); a gear (22) is meshedly connected to one side of the rack (21); an output shaft (23) is fixedly embedded in the inside of the gear (22); the output shaft (23) is rotatably connected to the first housing (1) via a bearing.

2. A swing type hydraulic actuator according to claim 1, characterized in that: The outer surface of the movable plate (20) is covered with a sealing gasket (203), and the sealing gasket (203) is attached to the inner wall of the first shell (1).

3. The swing type hydraulic actuator according to claim 1, characterized in that: A slider (202) is slidably connected to the interior of the second shell (29), and one side of the support plate (28) extends into the interior of the second shell (29) and is fixedly connected to the slider (202).

4. A swing type hydraulic actuator according to claim 3, characterized in that: One side of the slider (202) is fixedly connected to a limit spring (201), and one end of the limit spring (201) is fixedly connected to the inner wall of the second housing (29).

5. The swing type hydraulic actuator according to claim 1, characterized in that: A fixing block (10) is evenly and fixedly connected to the outer side of the first shell (1), and a threaded rod (11) is threadedly connected to the interior of the fixing block (10).

6. The swing type hydraulic actuator according to claim 5, characterized in that: One end of the threaded rod (11) is fixedly connected with a protrusion (12).

7. The swing type hydraulic actuator according to claim 6, characterized in that: A slot (13) is provided on one side of the protrusion (12).

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