Pneumatic clutch linear executing mechanism

Abstract

The utility model discloses a pneumatic clutch linear actuating mechanism which comprises an actuating box body with air holes in the upper side and the lower side, a rotating shaft is rotatably arranged in the actuating box body, a switching cylinder is sleeved outside the rotating shaft, and a piston is fixedly sleeved outside the switching cylinder. A transmission pin is arranged outside the rotating shaft, and a spiral groove connected with the transmission pin in a spiral sliding fit mode is formed in the cylinder wall of the adapter cylinder. A turntable is rotationally arranged between the piston and the inner wall of the execution box body; air channels are formed in the upper and lower sides of the turntable corresponding to the air holes in the upper and lower sides of the execution box body; a hand wheel mechanism is arranged at the top of the rotating shaft, an output shaft of the hand wheel mechanism is connected with the top end of the rotating shaft through a clutch mechanism, and the turntable controls the clutch state of the clutch mechanism through self rotation; according to the utility model, when the pressure of the driving gas is normal, gas-driven linear action execution is normally carried out, when the pressure of the driving gas is abnormal, the connection between the driving gas and the linear execution mechanism can be timely disconnected, and the manual state can be quickly switched to operate the linear execution mechanism.

Description

Technical Field

[0001] The utility model belongs to the technical field of pneumatic actuators and relates to a pneumatic clutch linear actuator. Background Art

[0002] Pneumatic actuators are devices that use a high-pressure gas source as a power source, and the pressure generated by the driving gas drives the movable parts in the actuator to perform linear movement, rotation, swing and other execution actions. Among them, linear action pneumatic actuators are the most commonly used. Existing linear action pneumatic actuators introduce the gas source into the piston cavity, and use the driving gas to push the piston to move linearly, thereby driving the connecting rod, contacts and other moving parts connected to the piston to perform linear actions. The moving stroke and execution force of the moving parts are affected by the driving gas pressure. Once the driving gas pressure is abnormal, the execution action of the linear pneumatic actuator will be abnormal, and in severe cases, it will even cause damage to the linear pneumatic actuator. However, when facing abnormal driving gas pressure, the existing linear pneumatic actuators cannot disconnect from the gas source in time, and cannot quickly switch from the gas drive state to the manual control state in time.

[0003] The utility model aims at the above technical problems existing in the existing linear pneumatic actuators and discloses a pneumatic clutch linear actuator. Utility Model Content

[0004] The utility model aims to provide a pneumatic clutch linear actuator, which can normally perform air-driven linear actions when the driving gas pressure is normal, can timely disconnect the connection between the driving gas and the linear actuator when the driving gas pressure is abnormal, and can quickly switch to a manual state to operate the linear actuator.

[0005] The utility model is realized by the following technical solutions:

[0006] A pneumatic clutch linear actuator comprises an actuator box with air holes on the upper and lower sides, a rotating shaft is rotatably arranged at the inner center of the actuator box, a transfer cylinder is sleeved on the outside of the rotating shaft, and a piston is fixedly sleeved on the outside of the transfer cylinder; a transmission pin is arranged on the outside of the rotating shaft, and a spiral groove which is spirally slidably connected with the transmission pin is arranged on the wall of the transfer cylinder; a turntable is rotatably arranged between the piston and the inner wall of the actuator box, and air passages are arranged on the upper and lower sides of the turntable corresponding to the air holes on the upper and lower sides of the actuator box respectively; a handwheel mechanism is arranged on the top of the rotating shaft, and the output shaft of the handwheel mechanism is connected to the top of the rotating shaft through a clutch mechanism, and the turntable controls the clutch state of the clutch mechanism by its own rotation.

[0007] In the pneumatic drive mode, the clutch mechanism is in the disconnected state, and the turntable rotates to the first position. At this time, the air channels on the upper and lower sides of the turntable are respectively connected to the air holes on the upper and lower sides of the box wall of the execution box. The air channels on the upper and lower sides of the turntable are respectively located on the upper and lower sides of the piston, and the air holes are connected through the air channels, and then the gas is introduced into the execution box to drive the piston to drive the adapter tube to slide axially along the rotating shaft to realize the execution of the pneumatic drive action. When the air source fails or the air pressure inside the execution box is abnormal, in order to avoid damaging the piston and the adapter tube, the turntable rotates to the second position at this time, and at the same time, the clutch structure is driven to convert to the state of connecting the output shaft of the handwheel structure with the rotating shaft by rotating the turntable to the second position. At this time, the air channels on the upper and lower sides of the turntable are respectively disconnected from the air holes on the upper and lower sides of the box wall of the execution box, and the gas cannot enter the interior of the execution box to drive the piston. However, the handwheel mechanism can drive the rotating shaft to rotate circumferentially, and then the transmission pin on the outer side of the rotating shaft acts on the spiral groove on the adapter tube, driving the adapter tube and the piston to move axially to realize the execution of the manual operation action.

[0008] In order to better realize the utility model, further, the clutch mechanism includes a control pin and a clutch clip. The two clutch clips are symmetrically arranged between the output shaft of the handwheel mechanism and the top of the rotating shaft. A control pin is arranged at the bottom of each clutch clip. The turntable is provided with a variable diameter arc groove which is spirally slidingly connected to the control pin.

[0009] In order to better realize the utility model, further, the clutch mechanism also includes a clutch control disk, the clutch control disk is detachably mounted on the top of the rotating disk, and a variable diameter arc groove is provided on the clutch control disk.

[0010] In order to better realize the utility model, further, a turntable drive device is arranged on the outside of the execution box, and the turntable drive device includes a turntable drive bevel gear, a turntable bevel gear ring, and a driving handwheel shaft. The turntable bevel gear ring is mounted on the outside of the turntable, and the turntable drive bevel gear is rotatably arranged on the outside of the execution box. The turntable drive bevel gear is meshed and connected with the turntable bevel gear ring, and a driving handwheel shaft is arranged on one end of the turntable drive bevel gear.

[0011] In order to better implement the utility model, further, the outside of the driving handwheel shaft is covered with a driving handwheel or connected to the output shaft of the driving motor.

[0012] In order to better realize the present utility model, further, the handwheel mechanism includes a first bevel gear, a second bevel gear, a handwheel mounting box, a transmission shaft, an output shaft, and an operating handwheel. The output shaft is arranged inside the handwheel mounting box and rotates coaxially relative to the rotating shaft. A clutch mechanism is arranged between the bottom end of the output shaft and the top end of the rotating shaft, and the second bevel gear is mounted on the outside of the output shaft; a transmission shaft is arranged on one side of the handwheel mounting box perpendicular to the axial rotation of the output shaft, one end of the transmission shaft is mounted with a first bevel gear that is matched and meshed with the second bevel gear, and the other end of the transmission shaft is mounted with an operating handwheel.

[0013] In order to better implement the utility model, further, a rotation scale is arranged on the operating hand wheel along the circumference.

[0014] In order to better realize the utility model, further, a conical guide port is provided at one end of the airway close to the air hole, and the diameter of the conical guide port is larger than the diameter of the air hole.

[0015] In order to better implement the utility model, further, a pressure sensor is provided at the airway.

[0016] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0017] The utility model sets a turntable for rotation inside the execution box body, and sets an air channel corresponding to the air hole on the turntable. The air channel and the air hole can be connected or disconnected by rotating the turntable. When the driving air pressure is abnormal, the air channel and the air hole can be disconnected by rotating the turntable to prevent the driving air from continuing to act on the piston and causing damage to the linear actuator. At the same time, the clutch mechanism connects the output shaft of the handwheel mechanism with the rotating shaft through the rotation of the turntable, so that the linear feed of the adapter cylinder can be manually controlled by the handwheel mechanism, and the fast conversion from air drive of the linear actuator to manual operation of the linear actuator can be realized, thereby ensuring the normal operation of the linear actuator. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a pneumatic clutch linear actuator;

[0019] Figure 2 It is a structural schematic diagram of the clutch mechanism;

[0020] Figure 3 is a schematic diagram of the structure of the turntable drive device;

[0021] Figure 4 It is a structural diagram of the handwheel mechanism;

[0022] Figure 5 The figure is a schematic diagram of the installation of the clutch clip;

[0023] Figure 6This is the installation diagram of the clutch control panel.

[0024] Among them: 1-execution box; 2-rotating shaft; 3-adapter cylinder; 4-piston; 5-transmission pin; 6-spiral groove; 7-turntable; 8-handwheel mechanism; 9-clutch mechanism; 10-turntable driving device; 81-first bevel gear; 82-second bevel gear; 83-handwheel mounting box; 84-transmission shaft; 85-output shaft; 86-operating handwheel; 91-clutch control disk; 92-control pin; 93-clutch clip; 94-inner clip; 95-slider; 911-variable arc groove; 101-turntable driving bevel gear; 102-turntable bevel gear ring; 103-driving handwheel shaft. DETAILED DESCRIPTION

[0025] The following detailed descriptions are all illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the utility model explicitly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present invention, they only indicate that they are consistent with the up, down, left and right directions of the drawings themselves, and do not limit the structure. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0028] Terminology explanation section: The terms "install", "connect", "connect", "fixed" and so on in the present utility model should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two elements, or an interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0029] Embodiment 1:

[0030] A pneumatic clutch linear actuator of this embodiment, such as Figure 1As shown, it includes an execution box body 1 with air holes on the upper and lower sides, a rotating shaft 2 is rotatably arranged at the inner center of the execution box body 1, a transfer tube 3 is sleeved on the outside of the rotating shaft 2, and a piston 4 is fixedly sleeved on the outside of the transfer tube 3; a transmission pin 5 is arranged on the outside of the rotating shaft 2, and a spiral groove 6 which is spirally slidably connected with the transmission pin 5 is arranged on the wall of the transfer tube 3; a turntable 7 is rotatably arranged between the piston 4 and the inner wall of the execution box body 1, and airways are arranged on the upper and lower sides of the turntable 7 corresponding to the air holes on the upper and lower sides of the execution box body 1 respectively; a handwheel mechanism 8 is arranged on the top of the rotating shaft 2, and the output shaft of the handwheel mechanism 8 is connected to the top of the rotating shaft 2 through a clutch mechanism 9, and the turntable 7 controls the clutch state of the clutch mechanism 9 by its own rotation.

[0031] The center of the internal cavity of the execution box 1 is rotatably mounted with a rotating shaft 2 through a bearing, and a transfer cylinder 3 is slidably sleeved on the outside of the rotating shaft 2 to ensure that the transfer cylinder 3 can rotate circumferentially relative to the rotating shaft 2. At the same time, a transmission pin 5 is provided on the outer surface of the rotating shaft 2, and a spiral groove 6 arranged along a spiral line is provided on the cylinder wall of the transfer cylinder 3. The transmission pin 5 extends into the spiral groove 6 and is connected with the spiral groove 6 in a spiral sliding manner. When the rotating shaft 2 rotates relative to the transfer cylinder 3, the transfer cylinder 3 is driven to achieve axial feeding through the cooperation of the transmission pin 5 and the spiral groove 6.

[0032] The outside of the adapter tube 3 is provided with a piston 4 through a connecting flange or a positioning shoulder sleeve, and a turntable 7 is rotatably provided between the piston 4 and the inner wall of the actuator housing 1, and the outer ring surface of the piston 4 is coupled with the inner ring surface of the turntable 7 in sliding and rotational connection, that is, the piston 4 can rotate relative to the turntable 7, and can also slide axially relative to the turntable 7. The upper and lower sides of the turntable 7 are provided with air passages corresponding to the air holes on the upper and lower walls of the actuator housing 1, and the two air passages are respectively located on the upper and lower sides of the piston 4. When the turntable 7 rotates to the first position, the clutch mechanism 9 is in a disconnected state, and the air hole is connected with the air passage. At this time, the driving gas provided by the external air source enters the interior of the actuator housing 1 through the air passage, and by controlling the air supply pressure on the upper and lower sides of the piston 4, a pressure difference is generated on the upper and lower sides of the piston 4 to drive the piston 4 to move axially to drive the adapter tube 3 to feed axially, and the end of the adapter tube 3 extending to the outside of the actuator housing 1 is provided with an adapter or an adapter interface for connecting external actuators such as a push rod and a contact.

[0033] When the external air source fails or the air pressure inside the execution box 1 is abnormal, in order to prevent the piston 4 and the adapter tube 3 from being damaged under abnormal circumstances, it is necessary to stop supplying air to the inside of the execution box 1. At this time, the turntable 7 is rotated to the second position, and when the turntable 7 is rotated to the second position, the clutch device 9 is driven to switch to the connection state to realize the connection between the output shaft of the handwheel mechanism 8 and the top of the rotating shaft 2. At the same time, when the turntable 7 is rotated to the second position, the airway and the air hole are staggered and no longer connected. At this time, the driving air cannot enter the inside of the execution box 1, thereby realizing the protection of the piston 4 and the adapter tube 3. At this time, the rotating shaft 2 can be driven to rotate by the handwheel structure 8, and the transmission pin 5 outside the rotating shaft 2 and the spiral groove 6 on the adapter tube 3 are spirally slidably matched, thereby driving the adapter tube 3 to perform manual axial feeding.

[0034] After the air source is restored or the air pressure inside the execution box 1 returns to normal, the turntable 7 can be rotated from the second position back to the first position, the air hole and the air channel are reconnected, and the clutch mechanism 9 is disconnected at the same time, and the air-driven axial feeding of the adapter tube 3 is restored.

[0035] Embodiment 2:

[0036] A pneumatic clutch linear actuator of this embodiment is improved on the basis of embodiment 1, such as Figure 2 , Figure 5 , Figure 6 As shown, the clutch mechanism 9 is arranged in the clutch housing, and the clutch housing is arranged on the top of the execution housing 1. The clutch mechanism 9 includes a control pin 92 and a clutch clip 93. The two clutch clips 93 are symmetrically arranged between the output shaft of the handwheel mechanism 8 and the top of the rotating shaft 2. The bottom of each clutch clip 93 is provided with a control pin 92, and the rotating disk 7 is provided with a variable diameter arc groove 911 that is spirally slidably connected with the control pin 92. An inner clip 94 is arranged on the clamping surface of the clutch clip 93 close to the rotating shaft 2. The outer side surface of the inner clip 94 is rotatably connected with the clamping surface of the clutch clip 93. The inner clip 94 is arranged on the clamping surface close to the rotating shaft 2. Anti-skid patterns or anti-skid protrusions are arranged on the outer side surface of the top end of the rotating shaft 2 and the outer side surface of the bottom end of the output shaft 85 of the handwheel mechanism. A slider 95 is arranged on the top of the clutch clip 93, and the slider 95 is slidably connected with the slide groove on the inner top end surface of the clutch housing.

[0037] Furthermore, the clutch mechanism 9 also includes a clutch control disk 91 , which is detachably mounted on the top of the turntable 7 , and a variable diameter arc groove 911 is provided on the clutch control disk 91 .

[0038] When the turntable 7 rotates from the first position to the second position, it drives the variable diameter arc groove 911 to change from the end with a larger diameter to the end with a smaller diameter, and then squeezes the control pins 92 at the bottom of the clutch clips 93 on both sides through the variable diameter arc groove 911. The linear sliding cooperation between the slider 95 and the slide groove makes the clutch clips 93 on both sides move closer to each other until the turntable 7 rotates to the second position, driving the clutch clips 94 on both sides to clamp and connect the output shaft of the handwheel mechanism 8 with the rotating shaft 2. At this time, the output shaft of the handwheel mechanism 8 can drive the rotating shaft 2 to rotate synchronously.

[0039] When the turntable 7 rotates from the second position to the first position, it drives the variable diameter arc groove 911 to change from the end with a smaller diameter to the end with a larger diameter, and then squeezes the control pins 92 at the bottom of the clutch clips 93 on both sides through the variable diameter arc groove 911. The linear sliding cooperation between the slider 95 and the slide groove makes the clutch clips 93 on both sides move away from each other until the turntable 7 rotates to the first position, driving the inner clips 94 on both sides to loosen the output shaft of the handwheel mechanism 8 and the rotating shaft 2. At this time, the output shaft of the handwheel mechanism 8 cannot drive the rotating shaft 2 to rotate synchronously.

[0040] A mounting groove is provided on the top of the rotating disk 7, and a clutch control disk 91 is detachably mounted or screwed inside the mounting groove, and the clutch control disk 91 is driven to rotate synchronously when the rotating disk 7 rotates. Similar to the above principle, when the clutch control disk 91 rotates, the variable diameter arc groove 911 is driven to squeeze the control pin 92 at the bottom of the clutch clip 93, thereby driving the clutch clips 93 on both sides to move closer to each other or move away from each other.

[0041] The other parts of this embodiment are the same as those of Embodiment 1, and thus will not be described in detail.

[0042] Embodiment 3:

[0043] A pneumatic clutch linear actuator of this embodiment is improved on the basis of embodiment 1 or 2, such as Figure 3 As shown, a turntable driving device 10 is arranged on the outside of the execution box 1, and the turntable driving device 10 includes a turntable driving bevel gear 101, a turntable bevel gear ring 102, and a driving handwheel shaft 103. The turntable bevel gear ring 102 is mounted on the outside of the turntable 7, and the turntable driving bevel gear 101 is rotatably arranged on the outside of the execution box 1. The turntable driving bevel gear 101 is meshed and connected with the turntable bevel gear ring 102, and a driving handwheel shaft 103 is arranged on one end of the turntable driving bevel gear 101.

[0044] By rotating the driving hand wheel shaft 103, the turntable driving bevel gear 101 is driven to rotate, and then the turntable bevel gear ring 102 is driven to rotate through the meshing structure, and finally the turntable 7 is driven to rotate. At the same time, through the meshing self-locking structure between the turntable driving bevel gear 101 and the turntable bevel gear ring 102, when the driving hand wheel shaft 103 stops rotating, the position of the turntable 7 is also fixed accordingly, and the turntable 7 will not rotate spontaneously.

[0045] Furthermore, the outside of the driving handwheel shaft 103 is provided with a driving handwheel or connected to the output shaft of the driving motor, and the driving handwheel shaft 103 is driven to rotate by the driving handwheel or the driving motor, thereby driving the turntable 7 to quickly switch between the first position and the second position.

[0046] The other parts of this embodiment are the same as those of Embodiment 1 or 2, and thus will not be described in detail.

[0047] Embodiment 4:

[0048] A pneumatic clutch linear actuator of this embodiment is improved on the basis of any one of embodiments 1-3, such as Figure 4 As shown, the handwheel mechanism 8 includes a first bevel gear 81, a second bevel gear 82, a handwheel mounting box 83, a transmission shaft 84, an output shaft 85, and an operating handwheel 86. The output shaft 85 is arranged inside the handwheel mounting box 83 for coaxial rotation relative to the rotating shaft 2. A clutch mechanism 9 is arranged between the bottom end of the output shaft 85 and the top end of the rotating shaft 2, and the second bevel gear 82 is sleeved on the outside of the output shaft 85; a transmission shaft 84 is arranged on one side of the handwheel mounting box 83 perpendicular to the axial rotation of the output shaft 85, one end of the transmission shaft 84 is sleeved with the first bevel gear 81 that is matched and meshed with the second bevel gear 82, and the other end of the transmission shaft 84 is sleeved with the operating handwheel 86.

[0049] The handwheel mounting box 83 is fixedly mounted on the top of the execution box 1 by connecting bolts, and an output shaft 85 is mounted in the handwheel mounting box 83 through a first bearing group in a vertical direction, and the output shaft 85 is coaxially arranged with the rotating shaft 2. A transmission shaft 84 is mounted in a horizontal direction through a second bearing group on the side of the handwheel mounting box 83, one end of the transmission shaft 84 extends to the inside of the handwheel mounting box 83 and is provided with a first bevel gear 81, and the top of the transmission shaft 84 is provided with a second bevel gear 82 meshingly connected with the first bevel gear 81. The other end of the transmission shaft 84 extends to the outside of the handwheel mounting box 83 and is provided with an operating handwheel 86, and the operating handwheel 86 is conveniently and labor-savingly used to drive the transmission shaft 84 to rotate, and then the transmission shaft 85 is driven to rotate through the meshing structure of the first bevel gear 81 and the second bevel gear 82, and when the clutch structure 9 is closed, the rotating shaft 2 can be driven to rotate through the transmission shaft 85.

[0050] Furthermore, a rotation scale is provided on the operating hand wheel 86 along the circumference. The number of rotations of the operating hand wheel 86 can be known by observing the rotation scale. Then, the axial feed stroke of the adapter tube 3 can be obtained through the relationship between the pre-calibrated number of rotations of the operating hand wheel 86 and the axial feed distance of the adapter tube 3.

[0051] The other parts of this embodiment are the same as any one of Embodiments 1-3, so they are not described again.

[0052] Embodiment 5:

[0053] A pneumatic clutch linear actuator of this embodiment is improved on the basis of any one of embodiments 1-4, and a conical guide port is provided at one end of the air passage close to the air hole, and the diameter of the conical guide port is larger than the diameter of the air hole.

[0054] When the air passage is connected to the air hole, the driving air from the air hole is collected and directed into the air passage through the conical guide port at the end of the air passage, so that the driving air can enter the interior of the execution box 1 more concentratedly.

[0055] Furthermore, a pressure sensor is provided at the airway, which detects the pressure inside the airway in real time. When abnormal pressure is detected, such as when the pressure exceeds the calibrated upper limit or the pressure is lower than the calibrated lower limit, the pressure sensor sends a signal to the external control device, and the external control device controls the drive motor at the end of the driving handwheel shaft 103 to start in real time, driving the driving handwheel shaft 103 to rotate, and finally driving the turntable 7 to switch between the first position and the second position in time.

[0056] The other parts of this embodiment are the same as any one of Embodiments 1-4, so they are not described again.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present invention fall within the protection scope of the present invention.

Claims

1. A pneumatic clutch linear actuator, comprising an actuator housing (1) with air holes on upper and lower sides, It is characterized in that A rotating shaft (2) is rotatably arranged at the inner center of the execution box (1), a transfer tube (3) is sleeved on the outer side of the rotating shaft (2), and a piston (4) is fixedly sleeved on the outer side of the transfer tube (3); a transmission pin (5) is arranged on the outer side of the rotating shaft (2), and a spiral groove (6) is arranged on the wall of the transfer tube (3) and is connected to the transmission pin (5) in a spiral sliding manner; a rotating disk (7) is rotatably arranged between the piston (4) and the inner wall of the execution box (1), and air passages are arranged on the upper and lower sides of the rotating disk (7) respectively corresponding to the air holes on the upper and lower sides of the execution box (1); a handwheel mechanism (8) is arranged on the top of the rotating shaft (2), and the output shaft of the handwheel mechanism (8) is connected to the top of the rotating shaft (2) through a clutch mechanism (9), and the rotating disk (7) controls the clutch state of the clutch mechanism (9) by its own rotation.

2. A pneumatic clutch linear actuator according to claim 1, It is characterized in that The clutch mechanism (9) comprises a control pin (92) and a clutch clip (93), wherein the two clutch clips (93) are symmetrically arranged between the output shaft of the hand wheel mechanism (8) and the top end of the rotating shaft (2), and the bottom of each clutch clip (93) is provided with a control pin (92), and the rotating disk (7) is provided with a variable diameter arc groove (911) which is spirally slidably connected to the control pin (92).

3. A pneumatic clutch linear actuator according to claim 1, It is characterized in that The clutch mechanism (9) further comprises a clutch control disk (91), wherein the clutch control disk (91) is detachably mounted on the top of the rotating disk (7), and a variable diameter arc groove (911) is provided on the clutch control disk (91).

4. A pneumatic clutch linear actuator according to any one of claims 1 to 3, It is characterized in that A turntable drive device (10) is arranged outside the execution housing (1), and the turntable drive device (10) comprises a turntable drive bevel gear (101), a turntable bevel gear ring (102), and a driving handwheel shaft (103). The turntable bevel gear ring (102) is sleeved on the outside of the turntable (7), and the turntable drive bevel gear (101) is rotatably arranged outside the execution housing (1). The turntable drive bevel gear (101) is meshedly connected with the turntable bevel gear ring (102), and a driving handwheel shaft (103) is arranged at one end of the turntable drive bevel gear (101).

5. A pneumatic clutch linear actuator according to claim 4, It is characterized in that The driving handwheel shaft (103) is externally sleeved with a driving handwheel or is connected to an output shaft of a driving motor.

6. A pneumatic clutch linear actuator according to any one of claims 1 to 3, It is characterized in that The handwheel mechanism (8) comprises a first bevel gear (81), a second bevel gear (82), a handwheel mounting box (83), a transmission shaft (84), an output shaft (85), and an operating handwheel (86); the output shaft (85) is arranged inside the handwheel mounting box (83) so as to rotate coaxially with the rotating shaft (2); a clutch mechanism (9) is arranged between the bottom end of the output shaft (85) and the top end of the rotating shaft (2); the second bevel gear (82) is sleeved on the outside of the output shaft (85); a transmission shaft (84) is arranged on one side of the handwheel mounting box (83) perpendicular to the axial rotation of the output shaft (85); one end of the transmission shaft (84) is sleeved with a first bevel gear (81) mating and meshing with the second bevel gear (82); and the other end of the transmission shaft (84) is sleeved with an operating handwheel (86).

7. A pneumatic clutch linear actuator according to claim 6, It is characterized in that The operating hand wheel (86) is provided with a rotation scale along the circumference.

8. A pneumatic clutch linear actuator according to any one of claims 1 to 3, It is characterized in that A conical flow guide port is arranged at one end of the airway close to the air hole, and the diameter of the conical flow guide port is larger than the diameter of the air hole.

9. A pneumatic clutch linear actuator according to claim 8, It is characterized in that A pressure sensor is arranged at the airway.

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