Quick-response large-torque pneumatic actuator

Abstract

The utility model relates to the technical field of pneumatic actuators, and discloses a quick-response large-torque pneumatic actuator which comprises an actuator shell, one side of the actuator shell is rotatably provided with a transmission block, one side of the transmission block is fixedly connected with a driven gear, the two sides of the driven gear are both connected with toothed bars in a meshed mode, and the toothed bars are fixedly connected with the transmission block. One end of one toothed bar is fixedly connected with a first movable block; according to the utility model, the toothed bars which are symmetrically distributed on the two sides of the driven gear in parallel are arranged, and the two toothed bars are respectively connected with the first movable block and the second movable block, so that during use, the first movable rod can move to drive the driven gear to rotate towards one direction, and the second movable rod can move to push the driven gear to rotate towards the other direction; when the actuator is used, the purpose of adjusting the rotating direction can be achieved only by controlling the gas injection position, and compared with a traditional single-channel starting actuator, the actuator is higher in response speed.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic actuator technical field especially relates to a quick response's big torque pneumatic actuator. BACKGROUND

[0002] Pneumatic actuator is with compressed air as power, is used for controlling the valve equipment opening and closing drive device.

[0003] Such as the publication number CN220622922U discloses a kind of pneumatic actuator, including left end cover, right end cover, shell and fixed mechanism, multiple through holes are passed through in fixed plate, the both sides of batten have multiple thread grooves, multiple fixed pieces are respectively threadedly connected with corresponding thread groove, and multiple fixed pieces are respectively supported the end face of two fixed plates, two fixed plates are respectively supported with batten, and supported the both ends of corresponding convex block, fixed mechanism includes multiple fixed pieces and two fixed plates.

[0004] But in prior art, starting actuator in the process of transmission, need to fill gas in actuator, until gas fills actuator after can carry out transmission, and gas injection needs to wait a period of time to be filled with actuator, therefore it will influence the response speed of actuator, cannot satisfy the demand of high sensitivity equipment. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the problem of prior art that gas injection needs to wait a period of time to be filled with actuator, will influence the response speed of actuator, and proposes a kind of quick response's big torque pneumatic actuator.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of quick response's big torque pneumatic actuator, including actuator shell, the side of the actuator shell rotatably installs transmission block, the side of the transmission block is fixedly connected with driven gear, the both sides of the driven gear are all engaged with connecting tooth rod, one end of one tooth rod is fixedly connected with first movable block, the end of another tooth rod is fixedly connected with second movable block, the tooth rod, first movable block and second movable block are all slidably connected in the inside of actuator shell.

[0007] Preferably, the inside of the actuator shell is provided with U-shaped cavity.

[0008] Preferably, the end of the actuator shell is fixedly connected with first air inlet pipe and second air inlet pipe, and the first air inlet pipe and the second air inlet pipe are respectively connected with the two ends of the U-shaped cavity.

[0009] Preferably, the side of the first movable block and the side of the second movable block are both fixedly connected with blocking block.

[0010] Preferably, the shape of the blocking block is matched with the shape of the U-shaped cavity, and the blocking block is slidingly connected inside the U-shaped cavity.

[0011] Preferably, a through hole is arranged at the center of the driven gear, and the through hole penetrates the transmission block.

[0012] Preferably, a hexagonal clamping groove is arranged at the edge of the through hole.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that:

[0014] 1、The utility model discloses a first movable rod and a second movable rod are arranged on both sides of the driven gear, and the first movable rod and the second movable rod are connected with the first movable block and the second movable block respectively, so that the movement of the first movable rod can drive the driven gear to rotate in one direction, and the movement of the second movable rod can drive the driven gear to rotate in another direction.

[0015] 2、The utility model discloses a U-shaped cavity is arranged between the first movable rod and the second movable rod, so that when air is injected to drive the first movable rod, the second movable rod can be driven synchronously, and when air is injected to drive the second movable rod, the first movable rod can be driven synchronously. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic diagram of the utility model is provided, which is a quick response large-torque pneumatic actuator.

[0017] Figure 2 A plane structure schematic diagram of the utility model is provided, which is a quick response large-torque pneumatic actuator.

[0018] Figure 3 An actuator shell internal structure schematic diagram of the utility model is provided, which is a quick response large-torque pneumatic actuator.

[0019] Figure 4 A first movable block, a second movable block and a driven gear position and structure schematic diagram of the utility model are provided, which is a quick response large-torque pneumatic actuator.

[0020] Legend: 1, actuator shell; 2, first air inlet pipe; 3, second air inlet pipe; 4, transmission block; 5, through hole; 6, hexagonal clamping groove; 7, driven gear; 8, first movable block; 9, second movable block; 10, tooth rod; 11, U-shaped cavity; 12, blocking block. DETAILED DESCRIPTION

[0021] In order to enable the above-mentioned purposes, features and advantages of the present application to be more clearly understood, the present application will be further described below with reference to the drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, however, the present application can be practiced in different manners other than those described herein, therefore, the present application is not limited to the specific embodiments disclosed in the following description.

[0023] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the present application provides a technical solution: a large-torque pneumatic actuator with fast response, comprising an actuator housing 1, a transmission block 4 is rotatably installed on one side of the actuator housing 1, a driven gear 7 is fixedly connected to one side of the transmission block 4, two toothed rods 10 are meshingly connected to both sides of the driven gear 7, one end of one of the toothed rods 10 is fixedly connected to a first movable block 8, one end of the other toothed rod 10 is fixedly connected to a second movable block 9, the toothed rod 10, the first movable block 8 and the second movable block 9 are all slidingly connected inside the actuator housing 1, the driven gear 7, the toothed rod 10, the first movable block 8 and the second movable block 9 are all arranged inside the actuator housing 1, wherein the positions of the first movable block 8 and the second movable block 9 are adjusted by controlling the injection of air, the movement of the first movable block 8 and the second movable block 9 can both push the driven gear 7 through the toothed rod 10, the rotation of the driven gear 7 can drive the transmission block 4, the driven gear 7 has a larger radius and can drive large-size, high-resistance equipment with greater torque. Figure 3 For example, when the first movable block 8 moves to the left, the driven gear 7 rotates counterclockwise, when the second movable block 9 moves to the left, the driven gear 7 rotates clockwise, achieving the purpose of adjusting the output steering, the driven gear 7 is fixedly connected between the transmission block 4, and the transmission block 4 is provided with a plurality of threaded holes for connecting other equipment.

[0024] According to Figure 3 , a U-shaped cavity 11 is formed in the inside of the actuator housing 1, the U-shaped cavity 11 is located inside the actuator housing 1, and high-pressure gas is stored inside for mutual transmission of the first movable block 8 and the second movable block 9.

[0025] According to Figure 1 and Figure 2As shown, one end of the actuator housing 1 is fixedly connected with a first air inlet pipe 2 and a second air inlet pipe 3, the first air inlet pipe 2 and the second air inlet pipe 3 are respectively connected with two ends of the U-shaped cavity 11, the first air inlet pipe 2 and the second air inlet pipe 3 are both communicated with the air source outside, and are respectively used for controlling the positions of the first movable block 8 and the second movable block 9; when air is injected into the first air inlet pipe 2, the first movable block 8 moves to the inside of the actuator housing 1, and the second movable block 9 moves to the outside of the actuator housing 1 under the extrusion of the air in the U-shaped cavity 11; when air is injected into the second air inlet pipe 3, the second movable block 9 moves to the inside of the actuator housing 1, and the first movable block 8 moves to the inside of the actuator housing 1 under the extrusion of the air in the U-shaped cavity 11.

[0026] According to Figure 3 and Figure 4 As shown, one side of the first movable block 8 and one side of the second movable block 9 are both fixedly connected with a blocking block 12, the blocking block 12 is used to drive the first movable block 8 and the second movable block 9, and in the process of moving one of the blocking blocks 12 along the U-shaped cavity 11, the other blocking block 12 will be pushed by the air in the U-shaped cavity 11.

[0027] According to Figure 3 and Figure 4 As shown, the shape of the blocking block 12 is matched with the shape of the U-shaped cavity 11, and the blocking block 12 is slidingly connected in the inside of the U-shaped cavity 11; the blocking block 12 is located in the inside of the U-shaped cavity 11, and when air is injected, the pressure of the air will push the blocking block 12, so as to achieve the purpose of driving the first movable block 8 and the second movable block 9.

[0028] According to Figure 2 and Figure 3 As shown, a through hole 5 is formed at the center of the driven gear 7, the through hole 5 penetrates the transmission block 4, the through hole 5 is used to accommodate the transmission structure of other equipment, and the through hole 5 penetrates the transmission block 4, which can ensure that the equipment is in contact with the transmission block 4 and the driven gear 7 at the same time.

[0029] According to Figure 2 and Figure 3 As shown, a hexagonal clamping groove 6 is formed at the edge of the through hole 5, the hexagonal clamping groove 6 is mainly used to butt joint the transmission structure on the equipment, and the transmission structure is also provided in a hexagonal structure, which can ensure the transmission efficiency.

[0030] The use method and working principle of the device are as follows: the transmission block 4 is used to butt joint with other equipment, the through hole 5 in the inside of the transmission block 4 is used to accommodate the transmission shaft, the hexagonal clamping groove 6 is butt jointed with a specific shape structure, which can ensure the transmission efficiency, the inside of the U-shaped cavity 11 stores high-pressure gas, and the two ends are blocked by two blocking blocks 12; in use, the first air inlet pipe 2 and the second air inlet pipe 3 are both communicated with the air source outside, and are respectively used for controlling the positions of the first movable block 8 and the second movable block 9.

[0031] When air is injected into the first air inlet pipe 2, the first movable block 8 moves towards the inside of the actuator housing 1, and the second movable block 9 moves towards the outside of the actuator housing 1 under the extrusion of air in the U-shaped cavity 11, at this time, the driven gear 7 rotates anticlockwise; when air is injected into the second air inlet pipe 3, the second movable block 9 moves towards the inside of the actuator housing 1, and the first movable block 8 moves towards the inside of the actuator housing 1 under the extrusion of air in the U-shaped cavity 11, and the driven gear 7 rotates clockwise.

[0032] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and alteration of the above embodiments without departing from the technical scheme of the present application, and in accordance with the technical essence of the present application, still belong to the protection scope of the present application.

Claims

1. A fast responding, large torque pneumatic actuator comprising an actuator housing (1), characterized in that: One side of the executor shell (1) is rotatably connected with a transmission block (4), one side of the transmission block (4) is fixedly connected with a driven gear (7), the two sides of the driven gear (7) are engaged with a toothed rod (10), one end of one toothed rod (10) is fixedly connected with a first movable block (8), one end of the other toothed rod (10) is fixedly connected with a second movable block (9), and the toothed rod (10), the first movable block (8) and the second movable block (9) are slidably connected in the executor shell (1).

2. A fast responding, large torque pneumatic actuator according to claim 1, characterized in that: A U-shaped cavity (11) is arranged in the executor shell (1).

3. A fast responding, large torque pneumatic actuator according to claim 1, characterized in that: One end of the executor shell (1) is fixedly connected with a first air inlet pipe (2) and a second air inlet pipe (3), and the first air inlet pipe (2) and the second air inlet pipe (3) are respectively connected with the two ends of the U-shaped cavity (11).

4. A fast responding, large torque pneumatic actuator as claimed in claim 1, wherein: The first movable block (8) and the second movable block (9) are fixedly connected with a blocking block (12).

5. A fast responding, large torque pneumatic actuator according to claim 4, characterized in that: The shape of the blocking block (12) is matched with the shape of the U-shaped cavity (11), and the blocking block (12) is slidably connected in the U-shaped cavity (11).

6. A fast responding, large torque pneumatic actuator as claimed in claim 1, wherein: A through hole (5) is arranged at the center of the driven gear (7), and the through hole (5) penetrates the transmission block (4).

7. A fast responding, large torque pneumatic actuator according to claim 6, characterized in that: A hexagonal clamping groove (6) is arranged at the edge of the through hole (5).

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