Force direction conversion type pneumatic actuator

Abstract

The utility model discloses a force direction conversion type pneumatic actuator, and relates to the field of pneumatic actuators. The force direction conversion type pneumatic actuator comprises an actuator body and an air cylinder arranged on the side wall of the actuator body, a detachable tooth part and a rotating column are arranged in the actuator body, the detachable tooth part comprises a base, a replaceable rack and a fixing block, the replaceable rack is arranged in the base, the fixing block is arranged on the base, the fixing block abuts against the replaceable rack, and the replaceable rack is arranged in the base. The base is fixedly connected to one face of the piston. According to the force direction conversion type pneumatic actuator, force from the air cylinder forces the replaceable rack to move horizontally and to be meshed with the rotating column, so that the rotating column rotates and drives other assemblies at the tail end of the rotating column to rotate, and force direction conversion from transverse horizontal thrust to vertical rotating force is completed; an air cylinder is arranged in a side chamber of the actuator, and a detachable rack is arranged to prevent the rack from being replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic actuators, in particular to a force direction conversion type pneumatic actuator. Background Art

[0002] Force conversion pneumatic actuators are one of the important actuators in the field of industrial automation and are widely used in many industries such as electricity, chemical industry, petroleum, metallurgy, etc. With the continuous advancement of industrial technology and the rapid development of intelligent manufacturing, pneumatic actuators are also constantly developing towards intelligence and precision.

[0003] The core principle of force conversion pneumatic actuators is to use the pressure energy of compressed air to convert into mechanical energy, and realize the direction conversion of force through a specific mechanical structure, so as to drive valves or other actuators to open, close or rotate. Specifically, when compressed air enters the cylinder of the actuator, it pushes the piston or related parts to move. These movements convert the direction of force through transmission mechanisms such as gears, racks, and levers, and finally realize the control of actuators such as valves. There are many advantages. For example, since pneumatic actuators use gas as a power source, they have a faster response speed; since pneumatic actuators can generate greater thrust or torque under the same gas source pressure, they are suitable for occasions that require large thrust; since pneumatic actuators have a simple structure, are sturdy and durable, and are not easily affected by environmental factors, they have higher reliability; since pneumatic actuators do not generate electric sparks and high temperatures in flammable and explosive environments, they have better explosion-proof performance, etc., resulting in their increasing popularity in the market year by year. However, with the widespread use of force conversion pneumatic actuators, some existing deficiencies have gradually been exposed. For example, the most widely used gear-type pneumatic actuator, because the gears rotate and mesh inside the cylinder all year round, when some compressed gas entering the cylinder is not handled properly, it will cause some impurities such as oil-water mixture to be mixed in the gas. These factors make the precision gears, which are already fragile, even worse in the cylinder. It is often necessary to shut down and open the cylinder for maintenance. The sealing of the cylinder itself will cause long-term maintenance to reduce its performance and sealing. In addition, the difficulty in replacing ordinary integrated gears will increase the production cost of the gear-type force conversion pneumatic actuator, reduce the performance of the instrument and make it easy to damage. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a force conversion pneumatic actuator, which solves the problem that since the gears rotate and mesh inside the cylinder, when some compressed gas entering the cylinder is not handled properly, it will cause some impurities such as oil-water mixture to be mixed in the gas. These factors make the precision gears, which are already easily damaged, even worse in the cylinder, and it is often necessary to shut down and open the cylinder for maintenance. The sealing of the cylinder itself means that long-term maintenance will reduce its performance and sealing. In addition, it is difficult to replace ordinary integrated gears, which increases the production cost of the gear-type force conversion pneumatic actuator, reduces the performance of the instrument and makes it easy to be damaged.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a force conversion pneumatic actuator, including an actuator and a cylinder arranged on the side wall of the actuator, the actuator includes a detachable gear condition and a rotating column, the detachable gear condition includes a base, a replaceable rack and a fixed block, the replaceable rack is arranged inside the base, the fixed block is arranged on the base, the fixed block is against the replaceable rack, and the base is fixedly connected to one side of the piston.

[0006] Preferably, a fixing groove is provided in the base, and the replaceable rack is movably inserted in the fixing groove.

[0007] Preferably, the fixing block is provided with a type I fixing screw, and the fixing block is fixedly mounted on the base by means of the type I fixing screw.

[0008] Preferably, the actuator further comprises a box body and a limit screw;

[0009] The limit screw is threadedly connected to the inside of the box, and the rotating column is rotatably connected to the box.

[0010] Preferably, the rotating column includes a cylindrical gear, a main shaft and a sleeve, the cylindrical gear is fixedly connected to the main shaft, the main shaft passes through and is rotatably connected in the box, the top end of the main shaft is rotatably connected in the sleeve, and the sleeve is fixedly connected to the upper surface of the box.

[0011] Preferably, the rotating column further comprises a limiting member, the limiting member is fixedly connected to the main shaft, and the limiting member abuts against a limiting screw.

[0012] Preferably, the cylinder also includes a cylinder body, a piston, a force transmission column, a spring and an air hole, the air hole is opened on the side of the cylinder body away from the box body, the piston is slidably connected in the cylinder body, the force transmission column is slidably connected between the cylinder body and the inside of the box body, one end of the force transmission column is fixedly connected to the piston, the other end of the force transmission column is fixedly connected to the base, one end of the spring is fixedly connected to the inner wall of the cylinder body, and the other end of the spring is against the piston.

[0013] Preferably, the cylinder body is provided with type II fixing screws, and the cylinder body is fixedly mounted on the side wall of the box body by the type II fixing screws.

[0014] The utility model discloses a force direction conversion pneumatic actuator, which has the following beneficial effects: the force direction conversion pneumatic actuator is configured by separating a cylinder from the pneumatic actuator, arranging the cylinder in a side chamber of the actuator, and providing a detachable rack to facilitate replacement of the rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the actuator of the utility model;

[0018] Figure 3 This is a schematic diagram of the internal details of the actuator of the utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the rotating column of the utility model;

[0020] Figure 5 This is a schematic diagram of the overall structure of the detachable gear condition of the utility model;

[0021] Figure 6 This is a detailed structural diagram of the detachable gear condition of the utility model;

[0022] Figure 7 This is a schematic diagram of the cross-sectional structure of the cylinder of the utility model.

[0023] In the figure: 1. actuator; 11. housing; 12. detachable gear condition; 121. base; 1211. fixing groove; 122. replaceable rack; 123. fixing block; 1231. type I fixing screw; 13. rotating column; 131. cylindrical gear; 132. main shaft; 133. limit piece; 134. bushing; 14. limit screw; 2. cylinder; 21. cylinder body; 22. piston; 23. force transmission column; 24. spring; 25. air hole; 26. type II fixing screw. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model is described clearly and completely. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0025] The embodiment of the present application provides a force conversion pneumatic actuator to solve the problem that since the gears rotate and mesh inside the cylinder, when some compressed gas entering the cylinder is not handled properly, it will cause some impurities such as oil-water mixture to be mixed in the gas. These factors make the precision gears, which are already fragile, even worse in the cylinder, and it is often necessary to shut down and open the cylinder for maintenance. The sealing of the cylinder itself means that long-term maintenance will reduce its performance and sealing. In addition, it is difficult to replace ordinary integrated gears, which increases the production cost of the gear-type force conversion pneumatic actuator, reduces the performance of the instrument and makes it easy to be damaged.

[0026] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0027] The embodiment of the utility model discloses a force direction conversion type pneumatic actuator.

[0028] According to the attached Figure 1-7 As shown, it includes an actuator 1 and a cylinder 2 arranged on the side wall of the actuator 1. The actuator 1 includes a detachable rack condition 12 and a rotating column 13. The detachable rack condition 12 includes a base 121, a replaceable rack 122 and a fixed block 123. The replaceable rack 122 is arranged inside the base 121, and the fixed block 123 is arranged on the base 121. The fixed block 123 is against the replaceable rack 122. The base 121 is fixedly connected to one side of the piston 22. The force from the cylinder 2 forces the replaceable rack 122 to move horizontally and engage with the rotating column 13, so that the rotating column 13 rotates and drives other components at the end of the rotating column 13 to rotate, completing the force conversion from the horizontal thrust to the vertical rotation force. The replaceable rack 122 is arranged inside the base 121 and is against the fixed block 123. On the one hand, the replaceable rack 122 will not be unstable during use, and on the other hand, it is convenient to disassemble, so that the gears of the force conversion type pneumatic actuator are easy to replace and convenient to disassemble.

[0029] A fixing groove 1211 is defined in the base 121 , and the replaceable rack 122 is movably inserted in the fixing groove 1211 . The replaceable rack 122 can slide into the base 121 along the fixing groove 1211 .

[0030] The fixing block 123 is provided with a type I fixing screw 1231 , and the fixing block 123 is fixedly mounted on the base 121 via the type I fixing screw 1231 . The fixing block 123 and the base 121 are threadedly connected together via the type I fixing screw 1231 .

[0031] The actuator 1 further comprises a box body 11 and a limit screw 14 . The limit screw 14 is threadedly connected inside the box body 11 . The rotating column 13 is rotatably connected inside the box body 11 . The detachable gear condition 12 and the rotating column 13 are arranged inside the box body 11 .

[0032] The rotating column 13 includes a cylindrical gear 131, a main shaft 132 and a sleeve 134. The cylindrical gear 131 is fixedly connected to the main shaft 132. The main shaft 132 passes through and is rotatably connected in the housing 11. The top end of the main shaft 132 is rotatably connected in the sleeve 134. The sleeve 134 is fixedly connected to the upper surface of the housing 11. The top end of the main shaft 132 passes through the housing 11 and is rotatably connected to the sleeve 134 fixed on the upper surface of the housing 11. The bottom end of the main shaft 132 passes through the housing 11 and is fixed to other components, such as a valve component or a robotic arm component.

[0033] The rotating column 13 also includes a limit member 133, which is fixedly connected to the main shaft 132. The limit member 133 abuts against the limit screw 14. Through the cooperation between the limit member 133 and the limit screw 14, the rotation range of the rotating column 13 is limited, and can be changed and adjusted according to the actual required rotation angle.

[0034] The cylinder 2 also includes a cylinder body 21, a piston 22, a force transmission column 23, a spring 24 and an air hole 25. The air hole 25 is opened on the side of the cylinder body 21 away from the box body 11. The piston 22 is slidably connected in the cylinder body 21. The force transmission column 23 is slidably connected between the cylinder body 21 and the inside of the box body 11. One end of the force transmission column 23 is fixedly connected to the piston 22, and the other end of the force transmission column 23 is fixedly connected to the base 121. One end of the spring 24 is fixedly connected to the inner wall of the cylinder body 21, and the other end of the spring 24 is against the piston 22. The transmission force of the piston 22 in the cylinder 2 is transmitted to the base 121 through the force transmission column 23, and the position of the piston 22 is restored by the spring 24 after the compressed gas leaves the cylinder 2 to complete the cycle.

[0035] The cylinder body 21 is provided with type II fixing screws 26, and the cylinder body 21 is fixedly mounted on the side wall of the box body 11 by the type II fixing screws 26, separating the cylinder 2 from the actuator 1, and threadedly connected by the type II fixing screws 26, which reflects the modular setting of the machine.

[0036] In summary, the above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A force conversion pneumatic actuator, comprising an actuator (1) and a cylinder (2) arranged on a side wall of the actuator (1), characterized in that: The actuator (1) comprises a detachable gear condition (12) and a rotating column (13), wherein the detachable gear condition (12) comprises a base (121), a replaceable gear rack (122) and a fixed block (123); The replaceable rack (122) is arranged inside the base (121), the fixed block (123) is arranged on the base (121), the fixed block (123) abuts against the replaceable rack (122), and the base (121) is fixedly connected to one side of the piston (22).

2. The force conversion pneumatic actuator according to claim 1, characterized in that: A fixing groove (1211) is provided in the base (121), and the replaceable rack (122) is movably inserted in the fixing groove (1211).

3. The force conversion pneumatic actuator according to claim 2, characterized in that: The fixing block (123) is provided with a type I fixing screw (1231), and the fixing block (123) is fixedly mounted on the base (121) via the type I fixing screw (1231).

4. The force conversion pneumatic actuator according to claim 3, characterized in that: The actuator (1) further comprises a box body (11) and a limit screw (14); The limit screw (14) is threadedly connected to the inside of the box (11), and the rotating column (13) is rotatably connected to the inside of the box (11).

5. The force conversion pneumatic actuator according to claim 4, characterized in that: The rotating column (13) comprises a cylindrical gear (131), a main shaft (132) and a shaft sleeve (134); The cylindrical gear (131) is fixedly connected to a main shaft (132); the main shaft (132) penetrates and is rotatably connected in the housing (11); the top end of the main shaft (132) is rotatably connected in a shaft sleeve (134); and the shaft sleeve (134) is fixedly connected to the upper surface of the housing (11).

6. The force conversion pneumatic actuator according to claim 5, characterized in that: The rotating column (13) further comprises a limiting member (133), wherein the limiting member (133) is fixedly connected to the main shaft (132), and the limiting member (133) abuts against the limiting screw (14).

7. The force conversion pneumatic actuator according to claim 6, characterized in that: The cylinder (2) further comprises a cylinder body (21), a piston (22), a force transmission column (23), a spring (24) and an air hole (25); The air hole (25) is provided on a side of the cylinder body (21) away from the box body (11); the piston (22) is slidably connected in the cylinder body (21); the force transmission column (23) is slidably connected inside the cylinder body (21) and the box body (11); one end of the force transmission column (23) is fixedly connected to the piston (22); the other end of the force transmission column (23) is fixedly connected to the base (121); one end of the spring (24) is fixedly connected to the inner wall of the cylinder body (21); the other end of the spring (24) is against the piston (22).

8. The force conversion pneumatic actuator according to claim 7, characterized in that: The cylinder body (21) is provided with a second-type fixing screw (26), and the cylinder body (21) is fixedly mounted on the side wall of the box body (11) by means of the second-type fixing screw (26).

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