Motor rotor, pneumatic motor and method of pneumatic driving

CN117888962BActive Publication Date: 2026-09-25LANGFANG DEV ZONE WANTONG YUANTAI ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202410249585.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-05
Publication Date
2026-09-25
Estimated Expiration
2044-03-05

AI Technical Summary

Technical Problem

[0003]本发明提出马达转子、气动马达及气动驱动方法,解决了相关技术中的活塞马达的马达转子结构复杂,连杆易坏,其结构复杂,不易修复的问题

Benefits of technology

本发明中设计了转子,转子上具有输出轴,当需要转子转动时,连通通道向活塞腔供气,活塞腔内的活塞在气体作用下滑动,活塞滑动时在因转子与活塞腔的直径方向呈夹角设置,活塞滑动时可对转子产生离心力,在离心力的作用下转子转动,驱动输出轴转动。相较于现有技术的柱塞式转子,取消了连杆的使用,从而可以避免连杆杆身变形所导致的损坏;相较于传统的柱塞式转子,取消连杆的同时可以取消曲柄,从而降低了马达转子的故障率。每个活塞配备一个连通通道,在某一个活塞发生损坏后,可保证整体运转效果受到影响最小,传动效率更高,避免了因曲柄连杆的动力传输造成的能量损耗,使能量传输效率得到了有效提高。马达转子为整体结构,相较于传统的转子,马达转子可直接安装至密封外壳内通气,气路贯通后可直接进行工作,定子可与密封外壳设计为一体结构,结构简单,便于维护。

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Abstract

The application relates to the technical field of pneumatic motors, and discloses a motor rotor, a pneumatic motor and a pneumatic driving method, which comprise a rotor, the rotor has an output shaft, further has a piston cavity, the piston cavity is column-shaped and axially forms an angle with the radial direction of the rotor, the piston cavity is arranged in a plurality of circumferential rows, and a piston is slidably arranged in the piston cavity, wherein the rotor further has a communication channel, the communication channel is communicated with the piston cavity, the communication channel has an air inlet and an air outlet, and when air enters the air inlet, the piston is pushed to move and drives the rotor to rotate. Through the technical scheme, the problems that the motor rotor structure of the piston motor in the prior art is complex, the connecting rod is easy to break, the structure is complex, and the connecting rod is not easy to repair are solved.
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Description

Technical Field

[0001] This invention relates to the field of pneumatic motor technology, specifically to a motor rotor, a pneumatic motor, and a pneumatic drive method. Background Technology

[0002] A pneumatic motor, also known as a wind-driven motor, is a device that converts the pressure energy of compressed air into rotational mechanical energy. A piston-type pneumatic motor is one that uses a crank or swashplate to convert the linear motion of several pistons into rotary motion. However, existing crank or swashplate structures are complex, prone to friction wear or deformation, and difficult to repair. Summary of the Invention

[0003] This invention proposes a motor rotor, a pneumatic motor, and a pneumatic drive method, which solves the problems of complex motor rotor structure, easily damaged connecting rods, and difficult repair in related technologies.

[0004] The technical solution of the present invention is as follows: Motor rotor, including The rotor has an output shaft and a piston chamber. The piston chamber is cylindrical and its axial direction forms an angle with the radial direction of the rotor. The piston chamber is arranged in several circular patterns. The piston is slidably disposed within the piston chamber. The rotor also has a connecting channel that is connected to the piston chamber. The connecting channel has an air inlet and an air outlet. When air enters through the air inlet, it pushes the piston to move and drives the rotor to rotate.

[0005] As a further technical solution, the piston chamber consists of at least two circumferentially arranged rings, with the two rings of piston chambers being staggered.

[0006] As a further technical solution, the rotor also has an intake channel and an exhaust channel, and each of the connecting channels is connected to the intake channel and the exhaust channel.

[0007] As a further technical solution, it also includes A rotating wheel is rotatably mounted on the piston, and the rotating wheel and the communicating channel are located on opposite sides of the piston.

[0008] As a further technical solution, the inner wall of the piston chamber has a buffer slope, which is located on one side of the rotor and is used to abut against the rotor.

[0009] Optionally, Pneumatic motor, including motor rotor, also includes The housing has a rotor disposed within it, and an intake arc cavity and an exhaust arc cavity are formed between the housing and the rotor. The housing has an intake annular cavity and an exhaust annular cavity, and the intake annular cavity, the intake arc cavity, and the intake port are sequentially connected. The exhaust port, the exhaust arc cavity, and the exhaust annular cavity are sequentially connected.

[0010] As a further technical solution, the housing also has an air intake port and an exhaust port, the air intake port and the exhaust port being connected to the air intake annular cavity and the exhaust annular cavity, respectively.

[0011] As a further technical solution, the intake arc cavity and the exhaust arc cavity are located on both sides of the motor rotor, respectively.

[0012] As a further technical solution, the rotor also has a first air intake channel and a first exhaust channel. The connecting channel is connected to the air intake arc cavity through the first air intake channel and to the exhaust arc cavity through the first exhaust channel. The housing also has a second air intake channel and a second exhaust channel. The air intake arc cavity is connected to the air intake annular cavity through the second air intake channel, and the exhaust arc cavity is connected to the exhaust annular cavity through the second exhaust channel.

[0013] A pneumatic drive method utilizes a motor rotor, which has a piston chamber. When the piston in the piston chamber is acted upon by gas, the gas is discharged to achieve the reciprocating motion of the piston. When the rotor rotates to one region, the piston chamber receives air, and when it rotates to another region, the piston chamber exhausts air. The intake and exhaust share the same connecting channel.

[0014] The working principle and beneficial effects of this invention are as follows: This invention features a rotor with an output shaft. When rotor rotation is required, a connecting channel supplies gas to the piston chamber. The piston inside the chamber slides under the influence of the gas. Because the rotor and piston chamber are at an angle in their diameter directions, the piston's sliding motion generates centrifugal force on the rotor, causing it to rotate and driving the output shaft. Compared to existing plunger-type rotors, this design eliminates the need for connecting rods, thus avoiding damage caused by rod deformation. Furthermore, eliminating the connecting rod also eliminates the need for a crank, reducing the motor rotor's failure rate. Each piston has its own connecting channel, ensuring minimal impact on overall operation even if one piston fails, resulting in higher transmission efficiency and avoiding energy loss caused by the crank and connecting rod. The motor rotor is an integral structure; compared to traditional rotors, it can be directly installed into the sealed housing for ventilation. Once the air passage is open, it can operate directly. The stator can be designed as an integral structure with the sealed housing, simplifying the design and facilitating maintenance. Attached Figure Description

[0015] The preferred embodiments will now be described in a clear and easy-to-understand manner, in conjunction with the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the present invention.

[0016] Figure 1 This is a schematic diagram of the internal structure of the present invention; Figure 2 This is a schematic diagram of the internal structure of Embodiment 2 of the present invention; Figure 3 This is a schematic diagram of the internal structure from another perspective of Embodiment 2 of the present invention; In the diagram: Rotor-1, Output shaft-101, Piston chamber-102, Piston-2, Connecting channel-3, Inlet-301, Exhaust port-302, Inlet channel-103, Exhaust channel-104, Rotor-4, Housing-5, Inlet arc cavity-501, Exhaust arc cavity-502, Inlet annular cavity-503, Exhaust annular cavity-504, Inlet interface-505, Exhaust interface-506, First intake channel-507, First exhaust channel-508, Second intake channel-509, Second exhaust channel-510. Detailed Implementation

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0018] To keep the drawings concise, each drawing only schematically shows the parts relevant to the invention; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of components with the same structure or function is schematically shown, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0019] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0021] Example 1 Reference Figure 1 This is the first embodiment of the present invention, which proposes... Motor rotor, including Rotor 1 has an output shaft 101 and a piston chamber 102. The piston chamber 102 is cylindrical and its axial direction forms an angle with the radial direction of the rotor 1. The piston chamber 102 is arranged in several circles. Piston 2 is slidably disposed within piston chamber 102. The rotor 1 also has a connecting channel 3, which is connected to the piston chamber 102. The connecting channel 3 has an air inlet 301 and an exhaust port 302. When air enters through the air inlet 301, it pushes the piston 2 to move and drives the rotor 1 to rotate.

[0022] In this embodiment, a rotor 1 is designed, with an output shaft 101. When the rotor 1 needs to rotate, the connecting channel 3 supplies air to the piston chamber 102. The piston 2 inside the piston chamber 102 slides under the action of the air. When the piston 2 slides, it is set at an angle to the diameter direction of the rotor 1 and the piston chamber 102. The sliding of the piston 2 can generate centrifugal force on the rotor 1. Under the action of centrifugal force, the rotor 1 rotates, driving the output shaft 101 to rotate. Compared with the existing plunger rotor 1, the use of the connecting rod is eliminated, thereby avoiding damage caused by the deformation of the connecting rod body. Compared with the traditional plunger rotor 1, eliminating the connecting rod also eliminates the crank, thereby reducing the failure rate of the motor rotor. Each piston 2 is equipped with a connecting channel 3. If a piston 2 is damaged, the overall operation effect can be minimized, the transmission efficiency is higher, and the energy loss caused by the power transmission of the crank and connecting rod is avoided, thus effectively improving the energy transmission efficiency. The motor rotor is an integral structure. Compared with the traditional rotor 1, the motor rotor can be directly installed into the sealed housing for ventilation. After the air passage is opened, it can start working directly. The stator can be designed as an integral structure with the sealed housing, which is simple in structure and easy to maintain.

[0023] Furthermore, the piston chamber 102 consists of at least two circumferentially arranged rings, with the two rings of piston chamber 102 being staggered.

[0024] In this embodiment, the piston chamber 102 is configured with at least two rings, which can provide higher power for the rotation of the rotor 1. Compared with the existing motor rotor, the multi-ring piston chamber 102 can make the motor rotor more universal. The piston chamber 102 of the existing plunger motor is mostly configured with one ring. The reason is that if multiple sets of piston chambers 102 are configured, the crank connecting rod of multiple sets of piston chambers 102 is very easy to interfere, thus causing failure. The processing is more difficult and it is not easy to promote. Compared with the existing technology, the connecting channel directly leads to the piston chamber 102, which provides a basis for improving the working torque of the motor rotor. The structure of the connecting channel 3 is simple and easy to process, which is conducive to the promotion of the motor rotor.

[0025] Furthermore, the rotor 1 also has an intake passage 103 and an exhaust passage 104, and each connecting passage 3 is connected to the intake passage 103 and the exhaust passage 104.

[0026] In this embodiment, each connecting channel 3 is provided with an intake channel 103 and an exhaust channel 104. The intake channel 103 and the exhaust channel 104 are both located on one side of the connecting channel 3. The structure is compact, which helps to reduce the volume of the motor rotor and makes it easier for the motor rotor to be used in more application environments. It also provides favorable conditions for the multi-turn piston chamber 102.

[0027] Furthermore, it also includes Rotary wheel 4 is rotatably mounted on piston 2, and rotary wheel 4 and connecting channel 3 are located on both sides of piston 2 respectively.

[0028] In this embodiment, the piston 2 is designed to rotate to prevent it from directly contacting the top of the piston cavity 102, thereby avoiding cracking and damage to the top of the piston 2 during reciprocating motion and extending the service life of the motor rotor. Compared with the motor rotor of the prior art, the piston 2 with the rotating wheel 4 can effectively reduce the impact force between the rotor 1 and the piston cavity 102, thus extending the service life of the piston 2. Under the action of the impact force, the rotating wheel 4 rotates, and its entire outer surface can abut against the piston cavity 102, improving the service life of the rotating wheel 4.

[0029] Furthermore, the inner wall of the piston cavity 102 has a buffer slope, which is located on one side of the rotating wheel 4 and is used to abut against the rotating wheel 4.

[0030] In this embodiment, the design of the buffer slope can reduce the impact force between the rotor 4 and the piston chamber 102, and further improve the service life of the piston 2. When the rotor 4 is damaged, the piston 2 can still work for a period of time and can be used for emergency purposes, which effectively improves the service life of the motor rotor.

[0031] Example 2 Reference Figures 2-3This is the second embodiment of the present invention, which differs from the first embodiment in that: Compared to Embodiment 1, the pneumatic motor further includes a motor rotor and also includes... The housing 5 and the rotor 1 are disposed inside the housing 5. An air intake arc cavity 501 and an exhaust arc cavity 502 are formed between the housing 5 and the rotor 1. The housing 5 has an air intake annular cavity 503 and an exhaust annular cavity 504. The air intake annular cavity 503, the air intake arc cavity 501 and the air intake port 301 are connected in sequence. The exhaust port 302, the exhaust arc cavity 502 and the exhaust annular cavity 504 are connected in sequence.

[0032] In this embodiment, a housing 5 is designed, and the motor rotor is rotated inside the housing 5. When the intake annular cavity 503 supplies air to the intake arc cavity 501, the intake port 301 intakes air into the connecting channel 3. The piston 2 slides under the action of the gas. After the piston 2 slides, it drives the motor rotor to rotate. After the motor rotor rotates, the exhaust arc cavity 502 connects with the exhaust annular cavity 504. After the piston 2 moves, the exhaust port 302 exhausts air into the annular arc cavity, and the exhaust arc cavity 502 discharges air into the exhaust annular cavity 504. Its structure is simple. The rotation of the motor rotor can realize air intake and exhaust. Compared with the existing pneumatic motor, the rotation of the motor rotor realizes air intake and exhaust, eliminating the use of the gas regulating valve, thereby reducing the failure rate of the pneumatic motor, reducing the cost of the pneumatic motor, and facilitating the promotion of pneumatic motors.

[0033] Furthermore, the housing 5 also has an air intake port 505 and an exhaust port 506, which are respectively connected to the air intake annular cavity 503 and the exhaust annular cavity 504.

[0034] In this embodiment, an air inlet 505 and an exhaust 506 are designed for connection with an external air pump and exhaust device. The structure is simple and easy to maintain.

[0035] Furthermore, the intake arc cavity 501 and the exhaust arc cavity 502 are located on both sides of the motor rotor, respectively.

[0036] In this embodiment, the intake arc cavity 501 and the exhaust arc cavity 502 are located on both sides of the rotor 1, and the curvature of both is less than that of a semicircle, so as to avoid the piston 2 from being unable to move due to the connection between the intake annular cavity 503 and the exhaust annular cavity. Its structure is simple and easy to maintain.

[0037] Furthermore, the rotor 1 also has a first intake passage 507 and a first exhaust passage 508. The connecting passage 3 is connected to the intake arc cavity 501 through the first intake passage 507 and to the exhaust arc cavity 502 through the first exhaust passage 508. The housing 5 also has a second intake passage 509 and a second exhaust passage 510. The intake arc cavity 501 is connected to the intake annular cavity 503 through the second intake passage 509, and the exhaust arc cavity 502 is connected to the exhaust annular cavity 504 through the second exhaust passage 510.

[0038] In this embodiment, a first exhaust channel 508 and a first intake channel 507 are designed to connect the channel 3 with the exhaust arc cavity 502 and the exhaust arc channel. The structure is simple and easy to process. The use of the connecting parts is replaced by the first exhaust channel 508 and the first intake channel 507. The structure is simple, the processing cost is low and it is not easy to be damaged.

[0039] The pneumatic drive method utilizes a motor rotor. The rotor 1 has a piston chamber 102. When the piston 2 in the piston chamber 102 is acted upon by gas, the gas is discharged to realize the reciprocating motion of the piston 2. When the rotor 1 rotates to one region, the piston chamber 102 takes in air, and when it rotates to another region, the piston chamber 102 exhausts air. The intake and exhaust share a common connecting channel 3.

[0040] In this embodiment, the piston 2 is used to provide rotational power to the rotor 1 through sliding. The intake and exhaust can share a common connecting channel 3. Its structure is simple and easy to maintain. The rotation of the motor rotor directly drives the rotation of the output shaft 101. Its structure is simple. Compared with the existing pneumatic drive method, it has lower requirements for equipment materials and gas pressure, and is easier to promote. Compared with the existing pneumatic drive method, the use of connecting rods is eliminated. Its structure is more conducive to reducing the failure rate of pneumatic motors. The reduction of the use of crank connecting rods avoids the loss of force during crank transmission and improves the gas power transmission ratio.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A pneumatic motor, characterized in that, Includes a motor rotor, the motor rotor comprising The rotor (1) has an output shaft (101) and a piston chamber (102). The piston chamber (102) is cylindrical and its axial direction forms an angle with the radial direction of the rotor (1). The piston chamber (102) is arranged in several circles. Piston (2), which is slidably disposed within the piston chamber (102), The rotor (1) also has a connecting channel (3), which is connected to the piston chamber (102). The connecting channel (3) has an air inlet (301) and an exhaust port (302). When air enters through the air inlet (301), it pushes the piston (2) to move and drives the rotor (1) to rotate. The pneumatic motor also includes a housing (5), and the rotor (1) is disposed in the housing (5). An air intake arc cavity (501) and an exhaust arc cavity (502) are formed between the housing (5) and the rotor (1). The housing (5) has an air intake annular cavity (503) and an exhaust annular cavity (504). The air intake annular cavity (503), the air intake arc cavity (501), and the air intake port (301) are connected in sequence. The exhaust port (302), the exhaust arc cavity (502), and the exhaust annular cavity (504) are connected in sequence.

2. A pneumatic motor according to claim 1, characterized in that, The piston chamber (102) consists of at least two circumferentially arranged rings, with the two rings of piston chamber (102) being staggered.

3. A pneumatic motor according to claim 1, characterized in that, The rotor (1) also has an intake passage (103) and an exhaust passage (104), and each of the connecting passages (3) is connected to the intake passage (103) and the exhaust passage (104).

4. A pneumatic motor according to claim 1, characterized in that, The motor rotor also includes Rotary wheel (4), which is rotatably mounted on the piston (2), and the rotating wheel (4) and the communicating channel (3) are located on both sides of the piston (2).

5. A pneumatic motor according to claim 4, characterized in that, The inner wall of the piston chamber (102) has a buffer slope, which is located on one side of the rotating wheel (4) and is used to abut against the rotating wheel (4).

6. A pneumatic motor according to claim 1, characterized in that, The housing (5) also has an air intake port (505) and an exhaust port (506), which are respectively connected to the air intake annular cavity (503) and the exhaust annular cavity (504).

7. A pneumatic motor according to claim 1, characterized in that, The intake arc cavity (501) and the exhaust arc cavity (502) are located on both sides of the motor rotor, respectively.

8. A pneumatic motor according to claim 6, characterized in that, The rotor (1) also has a first intake channel (507) and a first exhaust channel (508). The connecting channel (3) is connected to the intake arc cavity (501) through the first intake channel (507) and to the exhaust arc cavity (502) through the first exhaust channel (508). The housing (5) also has a second intake channel (509) and a second exhaust channel (510). The intake arc cavity (501) is connected to the intake annular cavity (503) through the second intake channel (509), and the exhaust arc cavity (502) is connected to the exhaust annular cavity (504) through the second exhaust channel (510).

9. A pneumatic drive method, utilizing the motor rotor of claim 1, characterized in that, The rotor (1) has the piston chamber (102). When the piston (2) in the piston chamber (102) is acted upon by gas, the gas is discharged to realize the reciprocating motion of the piston (2). When the rotor (1) rotates to one region, the piston chamber (102) takes in gas, and when it rotates to another region, the piston chamber (102) exhausts gas. The intake and exhaust share the connecting channel (3).

Citation Information

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