Pneumatic motor actuating mechanism

Abstract

The invention belongs to the technical field of instruments and meters, and relates to a pneumatic motor actuating mechanism which comprises a box body, a driving gear set and a transmission output assembly are rotationally arranged in the box body, and the driving gear set can drive the transmission output assembly; the box body is provided with a pneumatic module and a manual assembly in a matched mode, and the pneumatic module and the manual assembly can respectively drive the driving gear set to rotate. A manual and automatic clutch is arranged on a box cover of the box body and can adjust the axial position of a first-stage driven bevel gear of the driving gear set so that a first driven bevel gear constructed at the upper end of the first-stage driven bevel gear can be meshed with a first-stage driving bevel gear connected with the output end of the pneumatic module. Or a second driven bevel gear constructed at the lower end of the first-stage driven bevel gear is meshed with a second first-stage driving bevel gear connected with the output end of the manual assembly. The actuating mechanism is simple and reasonable in structure, safe and reliable to operate and capable of improving undesirable phenomena such as unsmooth action or action dead points; clutch switching is achieved through the manual and automatic clutch, and automatic operation and manual operation do not affect each other.

Description

Technical Field

[0001] The invention belongs to the technical field of instrumentation devices and relates to a pneumatic motor actuator. Background Art

[0002] In the instrumentation industry, most of the existing pneumatic motor actuator products use plunger motors or curved guide rail structures, which have relatively complex structures. Product performance is greatly affected by processing accuracy, and abnormalities such as poor movement or dead points often occur. In addition, most of the matching handwheels are installed on the output spindle. During automatic operation, the handwheel rotates, while during manual operation, the plunger or curved guide rail inside the motor moves synchronously without any clutch switching operation, resulting in a large manual operating force or even inability to operate manually. Due to the particularity of its structure and application, stroke feedback can only be achieved by installing an internal feedback module and an external converter, and there is no intuitive visual stroke feedback device, which makes the product have too high requirements for subsequent selection and actual application. Professional cooperation is also required during on-site installation, and it is even more difficult to achieve automatic control of instrument valves. Summary of the invention

[0003] In view of the above problems, the present invention provides a pneumatic motor actuator with a simple and reasonable structure, safe and reliable operation, and the ability to improve undesirable phenomena such as poor movement or dead points. The clutch switching is achieved through a manual-automatic clutch, so that automatic and manual operations do not affect each other.

[0004] According to the technical solution of the present invention: a pneumatic motor actuator comprises a housing, in which a driving gear set and a transmission output assembly are rotatably arranged, and the driving gear set can drive the transmission output assembly; it is characterized in that the housing is equipped with a pneumatic module and a manual assembly, and the pneumatic module and the manual assembly can respectively drive the driving gear set to rotate; A manual automatic clutch is arranged on the box cover of the box body, and the manual automatic clutch can realize axial position adjustment of the primary driven bevel gear of the driving gear set, so as to realize meshing of the first driven bevel gear constructed at the upper end of the primary driven bevel gear with the first active bevel gear connected to the output end of the pneumatic module, or meshing of the second driven bevel gear constructed at the lower end of the primary driven bevel gear with the first active bevel gear connected to the output end of the manual assembly; The primary driven bevel gear and the secondary driving gear of the driving gear set form an axial sliding fit and rotate as a whole; The secondary driving gear drives the secondary driven gear to rotate, and the secondary driven gear drives the stroke feedback component and the transmission output component to rotate.

[0005] As a further improvement of the present invention, the pneumatic module is arranged in an independent chamber integrally connected to the side of the box body; The pneumatic module includes a stator assembly and a rotor assembly rotatably arranged in the stator assembly; The rotor assembly comprises a rotor, a plurality of pairs of radially symmetrical blade grooves are evenly distributed on the circumferential surface of the rotor, a blade is respectively arranged in each blade groove, two mutually symmetrical blade grooves are connected through a through circular pin hole, a first cylindrical pin is arranged in the circular pin hole, two ends of the first cylindrical pin are in contact with the inner side of the corresponding blade, so that when a blade on one side is subjected to a slight lateral force, the blade on the other side is driven, so that all blades are in close contact with the circular inner hole 1 of the stator assembly, and a special-shaped step 3 constructed at the lower end of the rotor is connected to the special-shaped hole of the first-stage active bevel gear 1; Two pipe thread interfaces are provided on the outside of the independent chamber, which serve as inlet and outlet for connecting the compressed air pipeline. The two pipe thread interfaces are respectively connected to two groups of air inlet ducts on the side of the stator assembly, so that the compressed air enters the chamber formed by the blades, rotor and stator sleeve of the stator assembly from one of the pipe thread interfaces, and after driving the rotor to rotate, the compressed air is discharged from the other pipe thread interface.

[0006] As a further improvement of the present invention, the stator assembly includes a stator sleeve, and a pin hole 2 is respectively provided at both ends of the stator sleeve, and a cylindrical pin 2 is placed in each pin hole 2, and the cylindrical pin 2 passes through the pressure plates respectively provided at both ends of the stator sleeve to achieve positioning and anti-rotation; The stator sleeve is provided with a circular inner hole eccentric to its outer circle, so as to rotatably set the rotor assembly, and the outer circle of the stator sleeve is evenly provided with four axially arranged support ribs along the circumferential direction, and the support ribs abut against the inner wall of the stator sleeve, and cavities are formed between two adjacent support ribs and the inner wall of the stator sleeve and the flange plates integrally connected to the axial ends of the stator sleeve, wherein the air inlets corresponding to the two cavities are respectively connected to the corresponding pipe thread interfaces; An end cover is arranged at the outer end of the independent chamber.

[0007] As a further improvement of the present invention, the manual automatic clutch comprises a handle, which is rotatably arranged on the box cover, and the front end of the handle is hinged to a driving rod, and the driving rod passes through the box cover and extends into the box body; a secondary driving gear is sleeved on the driving rod, and a plane thrust bearing 1 and a compression spring 1 are arranged in the inner cavity of the secondary driving gear from top to bottom in sequence, and the lower end of the compression spring 1 is pressed against the upper surface of the circular step 1 of the driving rod; A second plane thrust bearing is arranged on the driving rod corresponding to the lower part of the first circular step, and the lower end surface of the second plane thrust bearing is supported on the bottom plane of the first special-shaped hole of the first-stage driven bevel gear; The special-shaped step 1 at the lower end of the secondary driving gear extends into the special-shaped hole 1, forming an axial sliding fit between the secondary driving gear and the primary driven bevel gear; A standard bearing three is arranged in the lower inner hole of the first-stage driven bevel gear, the inner ring of the standard bearing three is installed with a support shaft, the external structure of the support shaft is a special-shaped step two, the lower end of the special-shaped step two is installed in a special-shaped mounting hole one at the bottom of the box body, a compression spring two is arranged in the inner hole of the support shaft, the upper end of the compression spring two is pressed against the top surface of the inner hole of the support shaft, and the lower end of the compression spring two is pressed against the bottom plane of the special-shaped mounting hole one.

[0008] As a further improvement of the present invention, the top surface of the box cover is provided with two symmetrically distributed bosses with holes, and a connecting plate is provided between the two bosses with holes; The connecting plate is provided with circular through hole one, circular through hole two and circular through hole three arranged in the shape of an isosceles triangle, and circular through hole two is located at the vertex of the isosceles triangle; circular through hole four, circular through hole five, circular through hole six and circular through hole seven are provided on the handle; wherein the circular through hole five is connected with the circular through hole eight at the upper end of the driving rod through a standard pin shaft three and a cotter pin three, the circular through hole four is connected with the circular through hole two through a standard pin shaft two and a cotter pin two, the circular through hole one is connected with the perforated boss through a standard pin shaft one and a cotter pin one, and the circular through hole three can cooperate with the circular through hole seven or the circular through hole six through the standard pin shaft three and the cotter pin three.

[0009] As a further improvement of the present invention, the lower end of the secondary driven gear is sequentially constructed with an integrally connected feedback driving gear and a cylindrical step four, on which a standard bearing two is installed, and the upper end of the secondary driven gear is constructed with an integrally connected cylindrical step five, on which a standard bearing one is installed, the standard bearing one is supported on the box cover, and the standard bearing two is supported on the circular inner hole three of the box body.

[0010] As a further improvement of the present invention, the stroke feedback assembly includes a feedback driven gear, a feedback shaft, a standard bearing five, and a standard bearing four. The standard bearing five is installed on the upper part of the feedback shaft, and the feedback driven gear and the standard bearing four are installed on the lower part of the feedback shaft in sequence from top to bottom. The feedback driven gear is meshed with the feedback driving gear, and the upper end of the feedback shaft extends out of the box cover.

[0011] As a further improvement of the present invention, the outer end cover of the independent chamber is provided with an end cover, the inner side surface of the end cover is constructed with an axially extending circular inner hole five, and a pin hole is provided on the inner end surface of the circular inner hole five, and the cylindrical pin two extends into the pin hole.

[0012] As a further improvement of the present invention, the transmission output assembly includes an output gear, and the output gear is meshed with the secondary driven gear.

[0013] The technical effects of the present invention are as follows: The structure of the present invention is reasonable, the operation is safe and reliable. At the same time, it has two driving functions of automatic driving and manual driving. And through the clutch switching operation of the manual-automatic clutch, the two driving methods can be made not to interfere with each other, making the manual operation more labor-saving. On the other hand, its unique stroke feedback component can accurately control each stroke by externally selecting different control accessories and stroke compilation, etc., which can not only greatly improve the application performance of the product but also avoid the influence of electronic components on the safety performance of the product itself. The product designed and manufactured by applying the present invention has a simple structure, a small volume, convenient operation, and is intrinsically safe and reliable, with green and environmental protection energy, and will not cause cost waste and environmental pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present invention.

[0015] Figure 2 is an assembly schematic diagram of the rotor assembly of the present invention.

[0016] Figure 3 is Figure 2 a cross-sectional view taken along the line A-A in

[0017] Figure 4 is a schematic structural diagram of the pneumatic motor rotor assembly of the present invention.

[0018] Figure 5 is a schematic structural diagram of the pneumatic motor stator assembly of the present invention.

[0019] Figure 6 is a schematic structural diagram of the box body of the present invention.

[0020] Figure 7 is a schematic structural diagram of the inner surface of the box cover of the present invention.

[0021] Figure 8 is a schematic structural diagram of the outer surface of the box cover of the present invention.

[0022] Fig. 9 is a schematic structural diagram of the gear set of the present invention.

[0023] Fig.10 is a schematic structural diagram of the manual-automatic clutch of the present invention.

[0024] Fig.11 is a schematic structural diagram of the manual-automatic clutch of the present invention.

[0025] Fig.12 is a schematic diagram of the structure of the feedback component of the present invention.

[0026] Fig.13 is a schematic structural diagram of the outer side of the first-stage driven bevel gear of the present invention.

[0027] Fig.14 It is a schematic diagram of the inner structure of the primary driven bevel gear of the present invention.

[0028] Fig.15 It is a schematic diagram of the structure of the secondary driving gear of the present invention.

[0029] Fig.16 It is a schematic diagram of the structure of the secondary driving gear of the present invention.

[0030] Fig.17 It is a schematic diagram of the end cover structure of the present invention.

[0031] Fig.18 It is a schematic diagram of the connecting plate structure of the present invention.

[0032] Fig.19 It is a schematic diagram of the handle structure of the present invention.

[0033] Fig. 20 This is a schematic diagram of the driving rod structure of the present invention. DETAILED DESCRIPTION

[0034] The specific implementation of the present invention will be further described below in conjunction with the accompanying drawings.

[0035] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. The described embodiment is only a part of the embodiment of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should fall within the scope of protection of the present invention.

[0036] like Figure 1-20 As shown, the present invention is a pneumatic motor actuator, including a housing 3, in which a driving gear set 5 and a transmission output component 9 are rotatably arranged, and the driving gear set 5 can drive the transmission output component 9 to achieve power output; the housing 3 is also equipped with a pneumatic module and a manual component 7, and the pneumatic module and the manual component 7 can respectively drive the driving gear set 5 to rotate.

[0037] A manual automatic clutch 6 is arranged on the box cover 4 of the box body 3, and the manual automatic clutch 6 can realize axial position adjustment of the primary driven bevel gear 5.2 of the driving gear set 5, so as to realize that the first driven bevel gear 5.2a constructed at the upper end of the primary driven bevel gear 5.2 is meshed with the primary active bevel gear 1 5.1 connected to the output end of the pneumatic module, or the second driven bevel gear 5.2b constructed at the lower end of the primary driven bevel gear 5.2 is meshed with the primary active bevel gear 2 5.3 connected to the output end of the manual component 7. The manual component 7 adopts a hand wheel, and the inner end of the mounting shaft of the hand wheel is connected to the primary active bevel gear 2 5.3.

[0038] The primary driven bevel gear 5.2 and the secondary driving gear 5.4 of the driving gear set 5 form an axial sliding fit and rotate as a whole.

[0039] The secondary driving gear 5.4 drives the secondary driven gear 5.5 to rotate, and the secondary driven gear 5.5 drives the stroke feedback component 8 and the transmission output component 9 to rotate.

[0040] like Figure 2 , 3 As shown, the pneumatic module is arranged in an independent chamber 3.1a integrally connected to the side of the box body 3.

[0041] like Figure 4 , 5 As shown, the pneumatic module includes a stator assembly 2 and a rotor assembly 1 rotatably disposed in the stator assembly 2 .

[0042] The rotor assembly 1 comprises a rotor 1.1, and cylindrical steps 1.1c and 1.1d are arranged at both ends of the rotor 1.1 for passing through the pressure plate 2.1 of the stator assembly 2 and respectively installing standard bearings 7 11 and 18 12. A plurality of pairs of radially symmetrical blade grooves 1.1a are evenly distributed on the circumferential surface of the rotor 1.1, and a blade 1.2 is arranged in each of the blade grooves 1.1a, and two symmetrical blade grooves 1.1a are connected by a through circular pin hole 1.1b, and a first cylindrical pin 1.3 is arranged in the circular pin hole 1.1b, and both ends of the first cylindrical pin 1.3 are in contact with the inner side of the corresponding blade 1.2, so that when the blade 1.2 on one side is subjected to a small lateral force, the blade on the other side is driven, so that all the blades are in close contact with the circular inner hole 1.2a of the stator assembly 2. Furthermore, in specific production practice, two circular pin holes 1.1b are provided in the middle of each set of symmetrical blade slots 1.1a; the inner side surfaces of the upper and lower ends of the blades 1.2 are both chamfered to facilitate the micro position adjustment of the blades 1.2. The special-shaped step 1.1e at the lower end of the rotor 1.1 is connected to the special-shaped hole 5.1a of the first-stage active bevel gear 1 5.1, and the commonly used side anti-dropout pin technology is used to prevent it from falling out.

[0043] Two pipe thread interfaces 3.1b are provided on the outside of the independent chamber 3.1a, which serve as inlet and outlet for connecting the compressed air pipeline. The two pipe thread interfaces 3.1b are respectively connected to the two groups of air inlet ducts 2.2c on the side of the stator assembly 2, so that the compressed air enters the chamber formed by the blades 1.2, the rotor 1.1 and the stator sleeve 2.2 of the stator assembly 2 from one of the pipe thread interfaces 3.1b, and after pushing the rotor 1.1 to rotate, the compressed air is discharged from the other pipe thread interface. Reverse air intake can realize reverse operation.

[0044] The stator assembly 2 includes a stator sleeve 2.2, and a pin hole 2.2b is respectively arranged at both ends of the stator sleeve 2.2. A cylindrical pin 2.3 is placed in each pin hole 2.2b. The cylindrical pin 2.3 passes through the pressure plates 2.1 respectively arranged at both ends of the stator sleeve 2.2 to achieve positioning and anti-rotation.

[0045] The stator sleeve 2.2 is provided with a circular inner hole 2.2a eccentric to its outer circle for rotatably setting the rotor assembly 1. The outer circle of the stator sleeve 2.2 is evenly provided with four axially arranged support ribs along the circumferential direction. The support ribs abut against the inner wall of the stator sleeve 2.2. Cavities are formed between two adjacent support ribs and the inner wall of the stator sleeve 2.2 and the flange plates integrally connected to the axial ends of the stator sleeve 2.2, wherein the air inlets 2.2c corresponding to the two cavities are respectively connected to the corresponding pipe thread interfaces 3.1b.

[0046] Furthermore, an end cover 10 is provided at the outer end of the independent chamber 3.1a, and an inner side surface of the end cover 10 is configured with an axially extending circular inner hole 5 10.1b, and a pin hole 10.1a is provided on the inner end surface of the circular inner hole 5 10.1b, and a cylindrical pin 2.3 extends into the pin hole 10.1a.

[0047] like Fig.10 , 11 As shown, the manual automatic clutch 6 realizes the switching between automatic and manual driving modes. The manual automatic clutch 6 comprises a handle 6.1, which is rotatably arranged on the box cover 4, and the front end of the handle 6.1 is hinged to a driving rod 6.9, and the driving rod 6.9 passes through the box cover 4 and extends into the box body 3; the secondary driving gear 5.4 is sleeved on the driving rod 6.9, and the inner cavity of the secondary driving gear 5.4 is provided with a plane thrust bearing 6.10 and a compression spring 6.11 from top to bottom, and the lower end of the compression spring 6.11 is pressed against the upper surface of the circular step 6.9b of the driving rod 6.9.

[0048] A plane thrust bearing 6.12 is arranged below the circular step 1 6.9b on the driving rod 6.9, and the lower end surface of the plane thrust bearing 6.12 is supported on the bottom plane of the special-shaped hole 1 5.2c of the primary driven bevel gear 5.2.

[0049] like Fig.10 , 11 As shown in FIGS. 13-16 , the special-shaped step 5.4b at the lower end of the secondary driving gear 5.4 extends into the special-shaped hole 5.2c, forming an axial sliding fit between the secondary driving gear 5.4 and the primary driven bevel gear 5.2.

[0050] A standard bearing three 6.13 is arranged in the lower inner hole of the first-stage driven bevel gear 5.2, and a support shaft 6.14 is installed on the inner ring of the standard bearing three 6.13. The external structure of the support shaft 6.14 is a special-shaped step two 6.14a, and the lower end of the special-shaped step two 6.14a is installed in the special-shaped mounting hole one 3.1c at the bottom of the box body 3. A compression spring two 6.15 is arranged in the inner hole of the support shaft 6.14, and the upper end of the compression spring two 6.15 is pressed against the top surface of the inner hole of the support shaft 6.14, and the lower end of the compression spring two 6.15 is pressed against the bottom plane of the special-shaped mounting hole one 3.1c.

[0051] like Figure 7 , 8 As shown, two symmetrically distributed bosses 4.1a with holes are arranged on the top surface of the box cover 4, and a connecting plate 6.5 is arranged between the two bosses 4.1a with holes.

[0052] like Fig.18 and 10 As shown in Figure 11, the connecting plate 6.5 is provided with a circular through hole 1 6.5a, a circular through hole 2 6.5b, and a circular through hole 3 6.5c arranged in an isosceles triangle shape, and the circular through hole 2 6.5b is located at the vertex of the isosceles triangle; the handle 6.1 is provided with a circular through hole 4 6.1a, a circular through hole 5 6.1b, a circular through hole 6 6.1c, and a circular through hole 7 6.1d; wherein the circular through hole 5 6.1b is connected to the circular through hole 8 6.9a at the upper end of the driving rod 6.9 through The standard pin shaft three 6.7 and the cotter pin three 6.8 are connected, the circular through hole four 6.1a and the circular through hole two 6.5b are connected through the standard pin shaft two 6.5 and the cotter pin two 6.6, the circular through hole one 6.5a and the perforated boss 4.1a are connected through the standard pin shaft one 6.3 and the cotter pin one 6.4, and the circular through hole three 6.5c can be matched with the circular through hole seven 6.1d or the circular through hole six 6.1c through the standard pin shaft three 6.2 and the cotter pin three 6.16.

[0053] The lower end of the secondary driven gear 5.5 is sequentially constructed with an integrally connected feedback driving gear 5.5a and a cylindrical step four 5.5b, on which a standard bearing two 5.7 is installed, and the upper end of the secondary driven gear 5.5 is constructed with an integrally connected cylindrical step five 5.5c, on which a standard bearing one 5.6 is installed, the standard bearing one 5.6 is supported on the box cover 4, and the standard bearing two 5.7 is supported on the circular inner hole three 3.1e of the box body 3.

[0054] The stroke feedback assembly 8 comprises a feedback driven gear 8.1, a feedback shaft 8.2, a standard bearing five 8.3, and a standard bearing four 8.4. The standard bearing five 8.3 is installed on the upper part of the feedback shaft 8.2. The feedback driven gear 8.1 and the standard bearing four 8.4 are installed on the lower part of the feedback shaft 8.2 in sequence from top to bottom. The feedback driven gear 8.1 is meshed with the feedback driving gear 5.5a, and the upper end of the feedback shaft 8.2 extends out of the box cover 4.

[0055] It can be understood that the transmission output assembly 9 includes an output gear, and the output gear is meshed with the secondary driven gear 5.5.

[0056] The specific operating principle of the present invention is as follows: According to the scheme of the present invention, the specific implementation process of its automatic function is that the air source enters the interior of the stator assembly 2 from one of the two pipe thread interfaces 3.1b of the independent cavity of the box body 3, and is discharged from the other interface. During the process of air intake and exhaust, the pressure difference generated by the difference in effective area of ​​the chamber formed by the blade-type rotor assembly 1 and the stator assembly 2 is used to drive the rotor 1.1 to rotate, thereby realizing torque output and realizing the functions of torque amplification and speed reduction through the multi-stage transmission of the gear set 5.

[0057] According to the scheme of the present invention, the specific implementation process of the automatic and manual clutch switching function is that when the circular through hole seven 6.1d on the handle 6.1 of the manual automatic clutch 6 is aligned with the circular through hole three 6.5a of the connecting plate 6.5, the standard pin shaft three 6.2 is passed through the circular through hole seven 6.1d and the circular through hole three 6.5a, and locked with the cotter pin three 6.16, which is the automatic state. After the standard cotter pin 6.16 and the standard pin shaft three 6.2 are pulled out in sequence, the handle 6.1 is operated upward to align the circular through hole six 6.1c with the circular through hole three 6.5a of the connecting plate 6.5, and then the standard pin shaft three 6.2 is passed through the circular through hole six 6.1c and the circular through hole three 6.5a, and locked with the cotter pin three 6.16. The handle 6.1 will press down the driving rod 6.9, the plane thrust bearing two 6.12 and the first-stage driven bevel gear 5.2, so that the upper end bevel gear 5.2a of the first-stage driven bevel gear 5.2 is separated from the first-stage active bevel gear one 5.1, and the lower end bevel gear 5.2b of the first-stage driven bevel gear 5.2 is meshed with the first-stage active bevel gear two 5.3. When the manual automatic clutch 6 is switched, the reaction force of the compression spring 1 6.11 installed inside can keep the secondary driving gear 5.4 at the original height, and the compression spring 2 6.15 is compressed to a predetermined height to retain the necessary kinetic energy for restoring automatic operation, thereby realizing manual operation.

[0058] According to the scheme of the present invention, the specific implementation process of its stroke feedback component is that the feedback driving gear 5.5a transmits the rotation speed transmitted by the gear set 5 to the feedback shaft 8.2 through the feedback gear pair, and then the output end of the feedback shaft 8.2 displays it to the outside, and can cooperate with the control components such as the stroke encoder and the stroke switch of the existing technology to realize position feedback.

[0059] Finally, it should be noted that the above specific implementation methods are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to examples, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A pneumatic motor actuator, comprising a housing (3), wherein a driving gear set (5) and a transmission output assembly (9) are rotatably arranged in the housing (3), and the driving gear set (5) is capable of driving the transmission output assembly (9); characterized in that: The box body (3) is provided with a pneumatic module and a manual assembly (7), and the pneumatic module and the manual assembly (7) are capable of respectively driving the driving gear set (5) to rotate; A manual automatic clutch (6) is arranged on the box cover (4) of the box body (3), and the manual automatic clutch (6) can realize axial position adjustment of the primary driven bevel gear (5.2) of the driving gear set (5), so as to realize that the first driven bevel gear (5.2a) constructed at the upper end of the primary driven bevel gear (5.2) is meshed with the primary active bevel gear 1 (5.1) connected to the output end of the pneumatic module, or the second driven bevel gear (5.2b) constructed at the lower end of the primary driven bevel gear (5.2) is meshed with the primary active bevel gear 2 (5.3) connected to the output end of the manual assembly (7); The primary driven bevel gear (5.2) and the secondary driving gear (5.4) of the driving gear set (5) form an axial sliding fit and rotate as a whole; The secondary driving gear (5.4) drives the secondary driven gear (5.5) to rotate, and the secondary driven gear (5.5) drives the travel feedback component (8) and the transmission output component (9) to rotate.

2. The pneumatic motor actuator according to claim 1, characterized in that: The pneumatic module is arranged in an independent chamber (3.1a) integrally connected to the side of the box body (3); The pneumatic module comprises a stator assembly (2) and a rotor assembly (1) rotatably arranged in the stator assembly (2); The rotor assembly (1) comprises a rotor (1.1), a plurality of pairs of radially symmetrical blade slots (1.1a) are evenly distributed on the circumferential surface of the rotor (1.1), a blade (1.2) is arranged in each blade slot (1.1a), two mutually symmetrical blade slots (1.1a) are connected via a through circular pin hole (1.1b), a first cylindrical pin (1.3) is arranged in the circular pin hole (1.1b), two ends of the first cylindrical pin (1.3) are in contact with the inner side of the corresponding blade (1.2), so that when a blade (1.2) on one side is subjected to a slight lateral force, the blade on the other side is driven, so that all blades are in close contact with the circular inner hole 1 (2.2a) of the stator assembly (2), and a special-shaped step 3 (1.1e) constructed at the lower end of the rotor (1.1) is connected to the special-shaped hole (5.1a) of the first-stage active bevel gear 1 (5.1); Two pipe threaded interfaces (3.1b) are provided on the outside of the independent chamber (3.1a) as inlet and outlet for connecting to a pipeline for compressed air. The two pipe threaded interfaces (3.1b) are respectively connected to two groups of air inlet ducts (2.2c) on the side of the stator assembly (2), so that compressed air enters the chamber formed by the blades (1.2), the rotor (1.1) and the stator sleeve (2.2) of the stator assembly (2) from one of the pipe threaded interfaces (3.1b), and after driving the rotor (1.1) to rotate, the compressed air is discharged from the other pipe threaded interface.

3. The pneumatic motor actuator according to claim 2, characterized in that: The stator assembly (2) comprises a stator sleeve (2.2), two ends of the stator sleeve (2.2) are respectively provided with a second pin hole (2.2b), a second cylindrical pin (2.3) is respectively placed in the second pin hole (2.2b), and the second cylindrical pin (2.3) passes through a pressure plate (2.1) respectively provided at the two ends of the stator sleeve (2.2) to achieve positioning and anti-rotation; The stator sleeve (2.2) is provided with a circular inner hole (2.2a) eccentric to its outer circle for rotatably setting the rotor assembly (1); the outer circle of the stator sleeve (2.2) is evenly provided with four axially arranged support ribs along the circumferential direction; the support ribs abut against the inner wall of the stator sleeve (2.2); cavities are respectively formed between two adjacent support ribs and the inner wall of the stator sleeve (2.2) and the flange plates integrally connected to the axial ends of the stator sleeve (2.2); the air inlets (2.2c) corresponding to the two cavities are respectively connected to corresponding pipe thread interfaces (3.1b); An end cover (10) is provided at the outer end of the independent chamber (3.1a).

4. The pneumatic motor actuator according to claim 1, characterized in that: The manual automatic clutch (6) comprises a handle (6.1), which is rotatably arranged on the box cover (4), and the front end of the handle (6.1) is hinged to a driving rod (6.9), and the driving rod (6.9) passes through the box cover (4) and extends into the box body (3); a secondary driving gear (5.4) is sleeved on the driving rod (6.9), and a plane thrust bearing (6.10) and a compression spring (6.11) are arranged in the inner cavity of the secondary driving gear (5.4) from top to bottom, and the lower end of the compression spring (6.11) is pressed against the upper surface of a circular step (6.9b) of the driving rod (6.9); A planar thrust bearing 2 (6.12) is arranged on the driving rod (6.9) below the circular step 1 (6.9b), and the lower end surface of the planar thrust bearing 2 (6.12) is supported on the bottom plane of the special-shaped hole 1 (5.2c) of the primary driven bevel gear (5.2); The special-shaped step 1 (5.4b) at the lower end of the secondary driving gear (5.4) extends into the special-shaped hole 1 (5.2c), forming an axial sliding fit between the secondary driving gear (5.4) and the primary driven bevel gear (5.2); A standard bearing three (6.13) is arranged in the lower inner hole of the first-stage driven bevel gear (5.2), the inner ring of the standard bearing three (6.13) is installed with a support shaft (6.14), the outer structure of the support shaft (6.14) is a special-shaped step two (6.14a), the lower end of the special-shaped step two (6.14a) is installed in a special-shaped mounting hole one (3.1c) at the bottom of the box body (3), and a compression spring two (6.15) is arranged in the inner hole of the support shaft (6.14), the upper end of the compression spring two (6.15) is pressed against the top surface of the inner hole of the support shaft (6.14), and the lower end of the compression spring two (6.15) is pressed against the bottom plane of the special-shaped mounting hole one (3.1c).

5. The pneumatic motor actuator according to claim 4, characterized in that: The top surface of the box cover (4) is provided with two symmetrically distributed bosses (4.1a) with holes, and a connecting plate (6.5) is provided between the two bosses with holes (4.1a); The connecting plate (6.5) is provided with a circular through hole 1 (6.5a), a circular through hole 2 (6.5b), and a circular through hole 3 (6.5c) arranged in the shape of an isosceles triangle, and the circular through hole 2 (6.5b) is located at the vertex of the isosceles triangle; The handle (6.1) is provided with a circular through hole four (6.1a), a circular through hole five (6.1b), a circular through hole six (6.1c), and a circular through hole seven (6.1d); wherein the circular through hole five (6.1b) is connected to the circular through hole eight (6.9a) at the upper end of the driving rod (6.9) via a standard pin three (6.7) and a cotter pin three (6.8), and the circular through hole four (6.1a) is connected to the circular through hole two (6.1d). 6.5b) is connected via a standard pin shaft 2 (6.5) and a cotter pin 2 (6.6); the circular through hole 1 (6.5a) is connected to the boss with hole (4.1a) via a standard pin shaft 1 (6.3) and a cotter pin 1 (6.4); the circular through hole 3 (6.5c) can be matched with the circular through hole 7 (6.1d) or the circular through hole 6 (6.1c) via a standard pin shaft 3 (6.2) and a cotter pin 3 (6.16).

6. The pneumatic motor actuator according to claim 1, characterized in that: The lower end of the secondary driven gear (5.5) is sequentially constructed with an integrally connected feedback driving gear (5.5a) and a cylindrical step four (5.5b), on which a standard bearing two (5.7) is mounted, and the upper end of the secondary driven gear (5.5) is constructed with an integrally connected cylindrical step five (5.5c), on which a standard bearing one (5.6) is mounted, the standard bearing one (5.6) being supported on the box cover (4), and the standard bearing two (5.7) being supported on the circular inner hole three (3.1e) of the box body (3).

7. The pneumatic motor actuator according to claim 6, characterized in that: The stroke feedback assembly (8) comprises a feedback driven gear (8.1), a feedback shaft (8.2), a standard bearing five (8.3), and a standard bearing four (8.4); the standard bearing five (8.3) is installed on the upper part of the feedback shaft (8.2); the feedback driven gear (8.1) and the standard bearing four (8.4) are installed on the lower part of the feedback shaft (8.2) in a limited manner from top to bottom; the feedback driven gear (8.1) is meshed with the feedback driving gear (5.5a); and the upper end of the feedback shaft (8.2) extends out of the box cover (4).

8. The pneumatic motor actuator according to claim 3, characterized in that: The inner side surface of the end cover (10) is formed with an axially extending circular inner hole five (10.1b), and a pin hole (10.1a) is provided on the inner end surface of the circular inner hole five (10.1b), and a cylindrical pin two (2.3) extends into the pin hole (10.1a).

9. The pneumatic motor actuator according to claim 1, characterized in that: The transmission output assembly (9) comprises an output gear, which meshes with a secondary driven gear (5.5).

Images