A vibration-damping servo motor

Abstract

The present invention discloses a shock-absorbing servo motor, aiming to provide a shock-absorbing servo motor with good shock-absorbing effect, stable structure, high connection efficiency, flexible connection method, and convenient heat dissipation, loading and unloading and maintenance. It includes a body, a buffer airbag and a cooling bag are sleeved on the body, the cooling bag is placed between the buffer airbag and the body, a mounting structure and a support frame are provided on the buffer airbag, the mounting structure includes a mounting seat, a connecting rod and a push rod, one end of the mounting seat is connected and communicated with the buffer airbag, the other end of the mounting seat is slidably connected to one end of the connecting rod, the other end of the connecting rod is elastically connected to the push rod, the support frame is movably connected to the buffer airbag, and the mounting seat is connected to the support frame. The beneficial effects of the present invention are: the servo motor has multiple and efficient shock-absorbing effects; stable structure; high connection efficiency, flexible connection method, high adaptability to connection target; convenient heat dissipation; loading and unloading and maintenance; high structural airtightness and smooth structural operation.

Description

Technical Field

[0001] The present invention relates to the technical field of servo motors, and in particular to a vibration-damping servo motor. Background Art

[0002] Servo motors can control speed and position with high accuracy, and can convert voltage signals into torque and speed to drive the controlled object. The rotor speed of the servo motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an actuator and has the characteristics of small electromechanical time constant, high linearity, and starting voltage. It can convert the received electrical signal into angular displacement or angular velocity output on the motor shaft. With the continuous advancement of social automation technology, the application of servo motors will continue to become popular, but the current servo motor has a complex structure and general heat dissipation effect. Long-term work can easily affect the normal operation of the servo motor; in addition, the current servo motor has poor shock absorption effect.

[0003] Chinese patent application publication number: CN 211046614 U, application publication date: 2020.07.17, the utility model discloses a shock-absorbing servo motor, which includes a body, an outer shell, an air inlet tail cover and a fan, the outer shell is wrapped around the outer periphery of the body, the inner wall of the outer shell is provided with a buffer body, the air inlet tail cover is installed at the tail end of the outer shell, and the fan is installed at the tail end of the body; the body is sleeved in the buffer body, and the buffer body is provided with a plurality of ventilation grooves near the inner wall of the body; the bottom of the outer shell is fixedly connected with a mounting seat, and the mounting seat includes an upper support plate, a shock-absorbing layer and a lower support plate arranged in sequence from top to bottom. The shortcomings of this solution are: the body and the outer sleeve shell are connected by a buffer unit, the body itself is prone to vibration and affects the stability of the connection between the rotating rod and the rotating target, the buffering of the buffer unit is a single buffering structure, which reduces the vibration reduction effect, and the outer sleeve shell limits the distance of the connection target body, making the device unsuitable for internal support installation when installed inside the connection target, resulting in low adaptability and insufficient flexibility of the connection method of the drive motor.

[0004] Chinese patent application publication number: CN 214429385 U, application publication date: 2021.10.19, the utility model discloses a mounting shock-absorbing mechanism for a servo motor, comprising a mounting base plate, a shock-absorbing combination spring is fixedly connected to the top of the mounting base plate, a shock-absorbing plate is welded to the top of the shock-absorbing combination spring, two second slide rails are welded to one side of the outer wall of the shock-absorbing plate, the inner rails of the two second slide rails are both slidably connected to two second sliding blocks, four second sliding blocks form two groups, and the tops of the outer walls of the two groups of second sliding blocks are welded with first slide rails. The shortcomings of this solution are: the servo motor is connected to the mounting base plate through a shock-absorbing combination, wherein the sound insulation mesh and sound insulation cotton limit the heat dissipation of the servo motor, and the shape connection cannot be flexibly adapted when the servo motor is installed in a cavity-shaped manner. In addition, the shock-absorbing method of the shock-absorbing combination is single, resulting in insufficient shock-absorbing effect and decreased stability of the connection. In addition, the inclined plate is welded through the sound insulation mesh, the two inclined plates are welded with a telescopic rod, the telescopic rod is welded with the sound insulation mesh, and the locking ring is welded with the sound insulation mesh, which makes the connection flexibility of the structural parts insufficient, time-consuming and labor-intensive during installation and disassembly, and difficult to maintain in the later stage.

[0005] In summary, the servo motor has a single vibration reduction method, insufficient capacity, low structural stability and connection stability, an inflexible connection method, low heat dissipation efficiency, and is inconvenient to load, unload and maintain. Summary of the invention

[0006] The present invention aims to overcome the shortcomings of the prior art drive motor, such as a single shock-absorbing method, insufficient capacity, low structural stability and connection stability, inflexible connection method, low heat dissipation efficiency, and inconvenient loading and unloading and maintenance. A shock-absorbing servo motor with good shock-absorbing effect, stable structure, high connection efficiency, flexible connection method, and convenient heat dissipation, loading and unloading and maintenance is provided.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A shock-absorbing servo motor comprises a body, a cushioning airbag and a cooling bag are sleeved on the body, the cooling bag is placed between the cushioning airbag and the body, a mounting structure and a support frame are provided on the cushioning airbag, the mounting structure comprises a mounting seat, a connecting rod and a push rod, one end of the mounting seat is connected and communicated with the cushioning airbag, the other end of the mounting seat is slidably connected to one end of the connecting rod, the other end of the connecting rod is elastically connected to the push rod, the support frame is movably connected to the cushioning airbag, and the mounting seat is connected to the support frame.

[0009] The cushioning airbag is used to be inflated with gas to reduce the vibration of the machine body mounting structure when it is installed externally. The cooling bag contains coolant, which is convenient for the machine body to dissipate heat and double shock-absorbing the machine body at the same time. The mounting structure is composed of a mounting seat, a connecting rod and a push rod. A cavity is provided in the mounting seat and is connected to the surface of the cushioning airbag. At the same time, the cavity is communicated with the inner cavity of the cushioning airbag. The connecting rod is slidably connected in the mounting seat, and then the connecting rod can slide up and down in the mounting seat through the cushioning airbag, so that the push rod connected to the other end of the connecting rod forms a shock-absorbing connection with the outside. In addition, the push rod and the connecting rod are elastically connected, so that the machine body obtains a third shock absorption. After installation, the servo motor performs triple shock absorption on the main body and the connection target body. At the same time, it can be adaptively connected with an internal support type during connection, which is suitable for flexible connection with cavities of connection target bodies of different sizes. It can also be directly installed and connected to the connection target body through the push rod. The gas filling and extraction of the cushioning airbag completes the tight connection installation and the contraction and rapid removal, thereby achieving multiple and efficient shock absorption, stable structure, high connection efficiency, flexible connection method, easy heat dissipation, loading and unloading and maintenance effects.

[0010] Preferably, the cushioning airbag is provided with an air inlet, an air extraction hole and an air filling hole, the mounting seat is connected to the air filling hole, the mounting seat includes an air filling cylinder and a slider, the slider is placed in the air filling cylinder and is slidably connected to the air filling cylinder, one end of the mounting seat is provided with a through hole 1, the other end of the mounting seat is provided with a through hole 2, through hole 2 is connected to the air filling hole, one end of the slider is opposite to through hole 2, the other end of the slider is connected to the connecting rod, and the push rod is plugged into through hole 1. The mounting seat is composed of a slider and an air filling cylinder, the slider is placed in the air filling cylinder and can slide in the air filling cylinder, one end face of the slider is opposite to through hole 2, through hole 2 is connected to the air filling hole, so that the cushioning airbag is filled with gas through the air inlet and enters through hole 2 through the air filling hole to push the slider, thereby pushing the connecting rod and the push rod, thereby improving the stability of the structural connection and the installation stability of the installation structure and the connection target body.

[0011] Preferably, a sealing ring 1 is connected to the slider, the sealing ring 1 is connected to the side of the slider, and the sealing ring 1 is in contact with the inner wall of the inflatable cylinder. The side of the slider is connected to a sealing ring 1, and the sealing ring 1 is in contact with the inner wall of the inflatable cylinder to improve the sealing of the inflation push side and prevent air leakage, thereby improving the connection efficiency and shock resistance.

[0012] Preferably, the top rod and the connecting rod are both provided with a plurality of limit slots, the limit slots are plugged with limit rods, the end of the top rod is connected with a spring, and the other end of the spring is connected with the end of the connecting rod. The positions of the limit slots on the top rod and the connecting rod correspond, one end of the limit rod is plugged into the limit slot on the top rod, and the other end is plugged into the limit slot on the connecting rod, and the spring connects the top rod and the connecting rod, so that the top rod and the connecting rod are elastically connected, and the movement is stable after the connection through the limit rod, and the top rod and the connecting rod are prevented from bending, which affects the connection and shock absorption effect.

[0013] As a preference, the limiting rods are evenly arranged at the edges of the top rod and the connecting rod, and the spring is placed in the limiting rod. A plurality of limiting rods are provided and connected around the edge of the connecting rod, and the spring is placed in the limiting rod, so that the spring can be retracted and extended vertically and stably, further avoiding bending of the top rod during connection, thereby improving the stability of the structural connection.

[0014] As a preferred embodiment, the limiting rod structure is in the shape of a column, and the side of the limiting rod is flush with the surface of the connecting rod and the top rod. The columnar limiting rod can be inserted into the limiting groove to stabilize the displacement and prevent the limiting rod from falling out of the limiting groove. At the same time, the surface of the limiting rod is flush with the surface of the connecting rod and the top rod, so that the surface of the structure is neat, the connection strength is improved, and it is convenient for the limiting rod to follow the top rod and the connecting rod to enter and exit the inflatable cylinder, thereby improving the smoothness of the structure operation.

[0015] Preferably, the air inlet and the air extraction hole are both connected with a sealing ring 2. The air inlet is used to charge gas through an external inflatable device, the sealing ring 2 prevents gas from leaking out, and the air extraction hole is used to release gas to quickly release the connection and facilitate disassembly.

[0016] Preferably, a mounting ring is connected to the inflation hole, a sealing ring 3 is arranged inside the mounting ring, the mounting seat is threadedly connected to the mounting ring, and the end face of the mounting seat is in contact with the end face of the sealing ring 3. The mounting ring is connected to the inflation hole, and the mounting ring is threadedly connected to the mounting seat, so that the connection structure is stable and the installation efficiency is improved. At the same time, the sealing ring 3 is connected to the mounting seat to prevent air leakage.

[0017] Preferably, the support frame includes a fixing ring and a support rod, the inflatable cylinder is plugged into the fixing ring, the cross-sectional shape of the inflatable cylinder is a wedge shape, one end of the support rod is connected to the fixing ring, and the other end of the support rod is movably connected to the cushion airbag. The fixing ring is supported and sleeved outside the cushion airbag through the support rod, and the support rod keeps the fixing ring and the cushion airbag (body) at a distance to facilitate heat dissipation, wherein the cross-sectional shape of the inflatable cylinder is a wedge shape, so that the outer surface of the inflatable cylinder is an inclined surface, thereby making the inflatable cylinder stably sleeved on the fixing ring, the fixing ring and the inflatable cylinder are stably connected to prevent movement and skewing, and at the same time, the support rod is movably connected to the cushion airbag, so as to achieve the effect of improving the stability of the structural connection and the efficiency of disassembly and assembly.

[0018] Preferably, the surface of the cushion airbag is connected with a buckle, the buckle is provided with a slot, the end of the support rod is connected with a block, and the block is engaged with the slot. The outer surface of the cushion airbag is connected with the buckle with the slot, and the block of the support rod can be engaged with the buckle, thereby improving the connection efficiency between the support rod and the cushion airbag and facilitating disassembly.

[0019] The beneficial effects of the present invention are: the servo motor has multiple and efficient shock absorption effects; the structure has high stability; the connection efficiency is high, the connection method is flexible, and the adaptability to the connection target is high; it is easy to dissipate heat; load and unload and maintain; the structure has high air tightness and smooth structure operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a stereogram of the present invention (in use);

[0021] Figure 2 yes Figure 1 Side view Figure 1 ;

[0022] Figure 3 yes Figure 1 Side view Figure 2 (Unused state);

[0023] Figure 4 It is a structural schematic diagram of the connection between the mounting structure and the support frame;

[0024] Figure 5 yes Figure 4 A is an enlarged view of the middle figure;

[0025] Figure 6 yes Figure 4 Cross-sectional view of BB.

[0026] In the figure: 1. body, 2. cushioning airbag, 3. cooling bag, 4. mounting structure, 5. support frame, 6. mounting seat, 7. connecting rod, 8. push rod, 9. air inlet, 10. exhaust hole, 11. inflation hole, 12. inflation tube, 13. slider, 14. through hole 1, 15. through hole 2, 16. sealing ring 1, 17. limiting groove, 18. limiting rod, 19. spring, 20. sealing ring 2, 21. mounting ring, 22. sealing ring 3, 23. fixing ring, 24. bracket rod, 25. buckle, 26. slot, 27. block. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] 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 present application. As used herein, unless the context clearly indicates 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.

[0029] Unless otherwise specified, the relative arrangement of the components, numerical expressions and numerical values ​​described in these embodiments do not limit the scope of the present application. For ease of explanation, spatial relative terms such as "upper", "lower", "left", "right" are used in the embodiments to illustrate the relationship between an element or feature shown in the figure and another element or feature. It should be understood that, in addition to the orientation shown in the figure, the spatial terms are intended to include different orientations of the device in use or operation. For example, if the device in the figure is inverted, the element described as being "under" other elements or features will be positioned "on" other elements or features. Therefore, the exemplary term "under" can include both upper and lower orientations. The device can be positioned in other ways (rotated 90 degrees or located in other orientations), and the spatial relative description used here can be interpreted accordingly. At the same time, it should be understood that for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, process and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, process and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values.It should be noted that similar reference numerals and letters denote similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0030] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0031] Embodiment 1:

[0032] like Figure 1 , 3 As shown, a damping servo motor comprises a body 1, on which a buffer airbag 2 and a cooling bag 3 are sleeved, the cooling bag 3 is placed between the buffer airbag 2 and the body 1, and the buffer airbag 2 is provided with a mounting structure 4 and a support frame 5.

[0033] like Figure 4 , 5As shown, the mounting structure 4 includes a mounting seat 6, a connecting rod 7 and a push rod 8. One end of the mounting seat 6 is connected and communicated with the cushion airbag 2, and the other end of the mounting seat 6 is slidably connected to one end of the connecting rod 7. The other end of the connecting rod 7 is elastically connected to the push rod 8. The support frame 5 is movably connected to the cushion airbag 2, and the mounting seat 6 is connected to the support frame 5. The cushion airbag 2 is provided with an air inlet 9, an air extraction hole 10 and an air filling hole 11. The mounting seat 6 is connected to the air filling hole 11. The mounting seat 6 includes an air filling cylinder 12 and a slider 13. The slider 13 is placed in the air filling cylinder 12 and is slidably connected to the air filling cylinder 12. One end of the mounting seat 6 is provided with a through hole 14, and the other end of the mounting seat 6 is provided with a through hole 2 15. The through hole 2 15 is communicated with the air filling hole 11. One end of the slider 13 is opposite to the through hole 2 15. The other end of the slider 13 is connected to the connecting rod 7, and the push rod 8 is plugged into the through hole 14. The slider 13 is connected with a sealing ring 16, which is connected to the side of the slider 13 and abuts against the inner wall of the inflator 12. The air inlet 9 and the air extraction hole 10 are both connected with a sealing ring 20.

[0034] like Figure 5 , 6 As shown, the top rod 8 and the connecting rod 7 are both provided with a plurality of limit grooves 17, and the limit rods 18 are inserted into the limit grooves 17. The end of the top rod 8 is connected with a spring 19, and the other end of the spring 19 is connected to the end of the connecting rod 7. The limit rods 18 are evenly arranged at the edges of the top rod 8 and the connecting rod 7, and the springs 19 are placed inside the limit rods 18. The limit rods 18 are columnar in structure, and the side surfaces of the limit rods 18 are flush with the surfaces of the connecting rod 7 and the top rod 8.

[0035] like Figure 4 As shown, the inflation hole 11 is connected with a mounting ring 21 , a sealing ring 3 22 is arranged inside the mounting ring 21 , the mounting seat 6 is threadedly connected with the mounting ring 21 , and the end surface of the mounting seat 6 is in contact with the end surface of the sealing ring 3 22 .

[0036] like Figure 3-5 As shown, the support frame 5 includes a fixing ring 23 and a support rod 24, the inflatable cylinder 12 is plugged into the fixing ring 23, the cross-section of the inflatable cylinder 12 is wedge-shaped, one end of the connecting rod 7 is connected to the fixing ring 23, and the other end of the support rod 24 is movably connected to the cushion airbag 2. A buckle 25 is connected to the surface of the cushion airbag 2, and a slot 26 is provided on the buckle 25. A clamping block 27 is connected to the end of the support rod 24, and the clamping block 27 is clamped with the slot 26.

[0037] like Figure 1-6 As shown: the cooling bag 3 is annularly sleeved on the outer surface of the body 1, and the cavity of the cooling bag 3 is filled with cooling liquid, so that the body 1 can be cooled in real time, thereby extending the driving time and use performance.

[0038] The cushion airbag 2 is used to inflate gas to reduce the vibration of the installation structure of the body 1 when it is installed externally. The cooling bag 3 contains coolant, which is convenient for the body 1 to dissipate heat and double shock absorption of the body 1. The mounting seat 6 is provided with a cavity and connected to the surface of the cushion airbag 2, and the cavity is connected to the inner cavity of the cushion airbag 2. The connecting rod 7 is slidably connected in the mounting seat 6, and then the connecting rod 7 can slide up and down in the mounting seat 6 through the cushion airbag 2, so that the top rod 8 connected to the other end of the connecting rod 7 forms a shock-absorbing connection with the outside. In addition, the top rod 8 is elastically connected to the connecting rod 7, so that the body 1 obtains a third shock absorption. The cushion airbag 2 is sleeved on the outside of the cooling bag 3 so that the cooling bag 3 is attached to each other. The cushion airbag 2 has an air inlet 9 and an air extraction hole 10 on the side close to the rear end of the body 1 to inflate and exhaust the cushion airbag 2, so that the cushion airbag 2 can expand and contract. It can be tightly connected to the target body and quickly removed at the same time, which improves the convenience of use. The mounting structure 4 is used to connect to the connection target body, wherein the mounting structure 4 is composed of a mounting seat 6, a connecting rod 7 and a push rod 8, wherein one end of the mounting seat 6 is inserted into the support frame 5 and the other end is connected to the cushion airbag 2, so that the gas in the gas cushion airbag 2 enters the inflation cylinder 12 in the mounting seat 6, so that the slider 13 in the inflation cylinder 12 pushes the connecting rod 7, and is connected to the connection target body through the push rod 8, wherein the mounting structure 4 is provided with six pairs around the circumference on the cushion airbag 2, so that the stability of the connection is improved.

[0039] The mounting structure 4 and the support frame 5 are connected to form two parts, which are respectively placed at the front and rear ends of the buffer airbag 2, and the heat dissipation is improved through the gap of the fixing ring 23.

[0040] One side of the clamping block 27 is connected to the end of the bracket rod 24 and the other end face is arc-shaped, which facilitates the insertion of the clamping block 27 into the clamping groove 26 for hard clamping installation, so that when the cushion airbag 2 is inflated, the bracket rod 24 props up the fixing ring 23. Since the inflation tube 12 is wedge-shaped, as the inflation state increases, the bracket rod 24 tightly connects the fixing ring 23 to the inflation tube 12, thereby improving the connection stability of the structural fixing ring 23 and the inflation tube 12.

[0041] During assembly, the cooling bag 3 is sleeved on the machine body 1, and the buffer air bag 2 is sleeved on the cooling bag 3. One end of the push rod 8 is connected to the two end surfaces of the connecting rod 7 through the spring 19, one end of the limiting rod 18 is inserted into the limiting groove 17 of the push rod 8, and the other end of the limiting rod 18 is inserted into the limiting groove 17 of the connecting rod 7, and the installation of the six sets of limiting rods 18 is completed, and the slider 13 is connected to the other end of the connecting rod 7. The push rod 8 is extended from the through hole 2 15 and extended from the through hole 1 14. A sealing ring 16 is connected to the side of the slider 13 so that the sealing ring 16 is in contact with the inner wall of the inflation tube 12. One end of the mounting seat 6 is inserted into the fixing ring 23 and the other end is connected to the inflation hole 11 by rotation until the end face of the inflation tube 12 is in contact with the end face of the sealing ring 3 22. The clamping block 27 is extended into the clamping groove 26 and buckled with the buckle 25 to complete the installation of the mounting structure 4 and then the support frame 5 and the body 1. Two sets of mounting structures 4 and then the support frame 5 are installed on the body 1 to form a buffered and shock-absorbing servo motor.

[0042] When using and installing, put the device into the connected target body, fill the air inlet 9 with gas through the inflation device, so that the buffer airbag 2 enters the gas and expands, and the gas in the buffer airbag 2 enters the inflation tube 12 of the mounting seat 6 through the inflation hole 11, and the gas pushes the slider 13, and the slider 13 drives the connecting rod 7 and the push rod 8 to gradually extend on the mounting seat 6, so that the push rod 8 is against the inner wall of the connected target body, and the device is stably installed in the connected target body through continuous inflation. When the body 1 is started, the structure forms a vibration buffer for both the body 1 and the connected target body through the triple shock absorption of the cooling bag 3, the buffer airbag 2 and the spring 19, so as to achieve the shock absorption effect. Among them, when installed in the connected target body, it can be installed by internal support. For the internal push rod 8 of the complex internal structure and non-uniform connected target body, it can be adaptively supported on the inner wall under gas support. When disassembling, the gas can be released through the exhaust hole 10 or the device can be removed from the connected target body directly from the mounting seat 6, which is convenient and quick. When installed in an open environment, it can be directly connected to the target object through the mounting seat 6 to form a double buffer.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A vibration-damping servo motor, characterized in that: The invention comprises a body (1), wherein a cushioning airbag (2) and a cooling airbag (3) are sleeved on the body (1), wherein the cooling airbag (3) is disposed between the cushioning airbag (2) and the body (1), wherein a mounting structure (4) and a support frame (5) are disposed on the cushioning airbag (2), wherein the mounting structure (4) comprises a mounting seat (6), a connecting rod (7) and a top rod (8), wherein one end of the mounting seat (6) is connected to and communicates with the cushioning airbag (2), the other end of the mounting seat (6) is slidably connected to one end of the connecting rod (7), the other end of the connecting rod (7) is elastically connected to the top rod (8), the support frame (5) is movably connected to the cushioning airbag (2), and the mounting seat (6) is connected to the support frame (5).

2. A damping servo motor according to claim 1, characterized in that: The cushioning airbag (2) is provided with an air inlet hole (9), an air extraction hole (10) and an inflation hole (11); the mounting seat (6) is connected to the inflation hole (11); the mounting seat (6) comprises an inflation cylinder (12) and a slider (13); the slider (13) is placed in the inflation cylinder (12) and is slidably connected to the inflation cylinder (12); one end of the mounting seat (6) is provided with a through hole 1 (14); the other end of the mounting seat (6) is provided with a through hole 2 (15); the through hole 2 (15) is connected to the inflation hole (11); one end of the slider (13) is opposite to the through hole 2 (15); the other end of the slider (13) is connected to the connecting rod (7); and the push rod (8) is plugged into the through hole 1 (14).

3. A damped servo motor according to claim 2, characterized in that: The slider (13) is connected to a sealing ring (16), the sealing ring (16) is connected to the side of the slider (13), and the sealing ring (16) is in contact with the inner wall of the inflation cylinder (12).

4. A damped servo motor according to claim 2, characterized in that: The push rod (8) and the connecting rod (7) are both provided with a plurality of limit slots (17), the limit slots (17) are plugged with limit rods (18), the end of the push rod (8) is connected to a spring (19), and the other end of the spring (19) is connected to the end of the connecting rod (7).

5. A damped servo motor according to claim 4, characterized in that: The limiting rods (18) are evenly arranged on the edges of the top rod (8) and the connecting rod (7), and the spring (19) is placed inside the limiting rod (18).

6. A damped servo motor according to claim 5, characterized in that: The limiting rod (18) has a columnar structural shape, and the side surface of the limiting rod (18) is flush with the surfaces of the connecting rod (7) and the top rod (8).

7. A damped servo motor according to claim 2, characterized in that: The air inlet hole (9) and the air exhaust hole (10) are both connected to a sealing ring 2 (20).

8. A damped servo motor according to claim 2, characterized in that: The inflation hole (11) is connected to a mounting ring (21), a sealing ring three (22) is arranged inside the mounting ring (21), the mounting seat (6) is threadedly connected to the mounting ring (21), and an end surface of the mounting seat (6) is in contact with an end surface of the sealing ring three (22).

9. A damped servo motor according to claim 2, characterized in that: The support frame (5) comprises a fixing ring (23) and a support rod (24); the inflation cylinder (12) is plugged into the fixing ring (23); the cross-sectional shape of the inflation cylinder (12) is wedge-shaped; one end of the support rod (24) is connected to the fixing ring (23); and the other end of the support rod (24) is movably connected to the cushioning airbag (2).

10. A damped servo motor according to claim 9, characterized in that: A buckle (25) is connected to the surface of the cushioning airbag (2), a clamping groove (26) is provided on the buckle (25), and a clamping block (27) is connected to the end of the support rod (24), and the clamping block (27) is clamped with the clamping groove (26).

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