Dual-output pneumatic actuator
By incorporating two pistons and a gear meshing structure in the pneumatic actuator, the problem of single torque output is solved, achieving dual torque output and expanding the scope of application.
Patent Information
- Application Number
- CN202520638116.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-04-07
AI Technical Summary
Existing rack and pinion pneumatic actuators only provide a single torque output function, which cannot meet the valve requirements of multiple torque inputs.
Design a dual-output pneumatic actuator by setting two pistons and two gears in the cylinder, with a rack on each piston, and the two gears meshing with the racks respectively. The piston movement is controlled by different air holes to achieve synchronous rotation of the two gears and provide two torque outputs.
It achieves dual torque output function, has a wider range of applications, and meets the valve requirements of various torque inputs.
Smart Images
Figure CN223814204U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of pneumatic actuator, concretely is a kind of double output pneumatic actuator. BACKGROUND
[0002] The existing gear rack pneumatic actuator generally includes cylinder, two pistons are respectively arranged in the cylinder, each piston is respectively sealed with cylinder by "O" ring, rack is respectively arranged on each piston, only one gear is provided on the cylinder, the gear is engaged with the rack of two pistons respectively, in the process that cylinder continuously admits air and exhausts, piston reciprocates, rack on piston can drive gear to rotate, gear is provided with a torque output hole, torque is output from the torque output hole.
[0003] But the existing gear rack pneumatic actuator only provides the function of torque output, can only be applied to the valve with single torque input, cannot meet people's use demand. CONTENT OF UTILITY MODEL
[0004] To realize the above-mentioned purpose, the utility model aims at providing a kind of double output pneumatic actuator, can solve the problems existing in the background art.The utility model provides the following technical scheme:
[0005] A kind of double output pneumatic actuator, including cylinder body, first gas hole, second gas hole and third gas hole are provided on cylinder body, first piston and second piston are installed in cylinder body, first piston is sealedly connected with cylinder body by first sealing element, second piston is sealedly connected with cylinder body by second sealing element, first rack is provided on first piston, second rack is provided on second piston, first gear and second gear are provided on the cylinder body, first gear and second gear are engaged with first rack and second rack respectively, first torque output hole is provided on the first gear, first torque output hole is provided on the second gear, the working process of the product is as follows: when the first gas hole and the third gas hole on cylinder body admit air, while second gas hole 9 exhaust, first piston 3 and second piston 11 approach each other under the impetus of gas source, while first rack 13 and second rack 14 drive first gear 4 and second gear 5 synchronous rotation in clockwise direction, while providing two clockwise rotating torques for first torque output hole 8 and second output hole 10;When the first gas hole 7 and the third gas hole 12 on cylinder body 1 exhaust, while second gas hole 9 admits air, first piston 3 and second piston 11 separate from each other under the impetus of gas source, while first rack 13 and second rack 14 drive first gear 4 and second gear 5 synchronous rotation in counterclockwise direction, while providing two counterclockwise rotating torques for first torque output hole 8 and second output hole 10.
[0006] As a further scheme of the utility model: first sealing element and second sealing element are made of rubber material, which is easily available in the market, easy to process, and has good use effect.
[0007] As a further scheme of the utility model: the first sealing member and the second sealing member both adopt sealing rings, which are easy to buy in the market and convenient for later replacement.
[0008] As a further scheme of the utility model: the first sealing member and the second sealing member both adopt O-shaped rings, which have good stability in use and good sealing effect.
[0009] As a further scheme of the utility model: the first air hole, the second air hole and the third air hole are distributed at equal intervals on the cylinder body.
[0010] Compared with the prior art, the utility model has the beneficial effects that:
[0011] The product provides the function of two torque outputs by the mode that two gears are engaged with two racks respectively, is more widely applicable, and can meet the use requirements of people. BRIEF DESCRIPTION OF DRAWINGS
[0012] Figure 1 It is a sectional view of the double-output pneumatic actuator in the embodiment of the utility model.
[0013] Figure 2 It is a schematic view of the double-output pneumatic actuator when working in the embodiment of the utility model.
[0014] In the drawing: 1-cylinder body; 2-first sealing member; 3-first piston; 4-first gear; 5-second gear; 6-second sealing member; 7-first air hole; 8-first torque output hole; 9-second air hole; 10-second torque output hole; 11-second piston; 12-third air hole; 13-first rack; 14-second rack. DETAILED DESCRIPTION
[0015] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Apparently, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0016] The specific implementation of the utility model will be described in detail in combination with specific embodiments.
[0017] Please refer to Figure 1The utility model discloses a kind of double-output pneumatic actuators, including cylinder, first air hole, second air hole and third air hole are provided on cylinder, first piston and second piston are installed in cylinder, first piston is sealedly connected with cylinder by first sealing element, second piston is sealedly connected with cylinder by second sealing element, first rack is equipped on first piston, second rack is equipped on second piston, first gear and second gear are equipped on the cylinder, first gear and second gear are engaged with first rack and second rack respectively, first moment output hole is equipped on the first gear, first moment output hole is equipped on the second gear, refer to Figure 2 The working process of the product is as follows: when the first air hole 7 and the third air hole 12 on the cylinder are supplied with air, and the second air hole 9 is exhausted, the first piston 3 and the second piston 11 are moved towards each other under the driving of the air source, and the first rack 13 and the second rack 14 drive the first gear 4 and the second gear 5 to rotate synchronously in the clockwise direction, and the first moment output hole 8 and the second output hole 10 are provided with two clockwise rotating moments, as shown in Fig. Figure 2 When the first air hole 7 and the third air hole 12 on the cylinder 1 are exhausted, and the second air hole 9 is supplied with air, the first piston 3 and the second piston 11 are separated from each other under the driving of the air source, and the first rack 13 and the second rack 14 drive the first gear 4 and the second gear 5 to rotate synchronously in the counterclockwise direction, and the first moment output hole 8 and the second output hole 10 are provided with two counterclockwise rotating moments, as shown in Fig. Figure 2 .
[0018] In one embodiment of the utility model, the first sealing element 2 and the second sealing element 6 are both made of rubber material, which is easily available in the market and convenient to process, and has good use effect.
[0019] In one embodiment of the utility model, the first sealing element 2 and the second sealing element 6 are both sealing rings, which are easily available in the market and convenient to replace in later period.
[0020] In one embodiment of the utility model, the first sealing element 2 and the second sealing element 6 are both O-rings, which have good stability and good sealing effect.
[0021] In one embodiment of the utility model, the first air hole 7, the second air hole 9 and the third air hole 12 are distributed at equal intervals on the cylinder 1, so that the moments provided by the first moment output hole 8 and the second output hole 10 are the same, which is convenient for people to use.
[0022] It should be noted that in the utility model, unless another explicit provision and limitation, the term "fixed", "set" and other terms should be broad understanding, for example, can be welding connection, can also be bolted connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through the intermediate medium, can be two elements inside the communication or the interaction relationship of two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0023] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that those skilled in the art can understand.
Claims
1. A dual-output pneumatic actuator, comprising a cylinder body, wherein the cylinder body is provided with a first air port, a second air port, and a third air port, a first piston and a second piston are installed inside the cylinder body, the first piston is sealed to the cylinder body through a first sealing element, and the second piston is sealed to the cylinder body through a second sealing element, characterized in that, The first piston is provided with a first rack, the second piston is provided with a second rack, the cylinder is provided with a first gear and a second gear, the first gear and the second gear mesh with the first rack and the second rack respectively, the first gear is provided with a first torque output hole, and the second gear is provided with a second torque output hole.
2. The dual-output pneumatic actuator according to claim 1, characterized in that, Both the first and second seals are made of rubber.
3. The dual-output pneumatic actuator according to claim 1 or 2, characterized in that, Both the first and second seals are sealing rings.
4. The dual-output pneumatic actuator according to claim 3, characterized in that, Both the first and second seals are O-rings.
5. The dual-output pneumatic actuator according to claim 1, characterized in that, The first, second, and third air holes are distributed at equal intervals on the cylinder block.