Steering engine swing arm mechanism with buffering function

Abstract

The steering engine swing arm mechanism with the buffering function comprises a steering engine body, an elastic body and a steering engine swing arm, the steering engine body comprises an output shaft, and a first claw disc is arranged on the output shaft; a plurality of elastic blades are annularly distributed on the peripheral wall of the elastic body; a second claw disc is arranged at one end of the steering engine swing arm, the claw part of the first claw disc, the elastic body and the second claw disc are coaxially arranged, the claw part of the first claw disc and the claw part of the second claw disc are connected through elastic blades to form torque transmission units, and the multiple torque transmission units are annularly distributed to transmit torque. And the second claw disc is rotatably connected with the output shaft through a limiting piece so as to limit the second claw disc on the output shaft. Due to the fact that the elastic body can generate elastic deformation, the first claw disc and the second claw disc can generate relative rotation, and when the output shaft drives the steering engine swing arm to rotate, damage to a gear in the steering engine can be reduced, the service life of the steering engine is prolonged, and safety and reliability of the steering engine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering gears, in particular to a steering gear swing arm mechanism with buffer. Background Art

[0002] A servo is a motor that can accurately control the displacement angle of the motor shaft according to the signal. It has the characteristics of small size, large torque, simple structure and high stability. It is often used in fields such as aircraft and robots. At present, the output teeth and swing arms of most servos are in direct contact, which can easily cause damage to the gears inside the servo during operation, making the servo unable to work normally and shortening the service life of the servo. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a steering gear swing arm mechanism with buffer, which can reduce the loss of the gear inside the steering gear, improve the safety of the steering gear, and extend the service life of the steering gear.

[0004] According to an embodiment of the utility model, a buffered servo swing arm mechanism comprises a servo body, an elastomer and a servo swing arm, the servo body comprises an output shaft, a first claw disk is provided on the output shaft; a plurality of elastic blades are annularly distributed on the peripheral wall of the elastomer; a second claw disk is provided at one end of the servo swing arm, the claw portion of the first claw disk, the elastomer and the second claw disk are coaxially arranged, the claw portion of the first claw disk and the claw portion of the second claw disk are connected by the elastic blades to form a torque transmission unit, a plurality of the torque transmission units are annularly distributed to transmit torque, and the second claw disk is rotatably connected to the output shaft by a limiting member to limit the second claw disk on the output shaft.

[0005] At least the following beneficial effects are achieved: when the output shaft rotates, the first claw disc rotates with the output shaft, the first claw disc drives the second claw disc to rotate through the elastic body, the second claw disc drives the steering gear swing arm to rotate, the steering gear swing arm will swing, and then the steering operation of the steering gear is realized. Since the elastic body can be elastically deformed, the first claw disc and the second claw disc can rotate relative to each other, when the output shaft drives the steering gear swing arm to rotate, the damage of the gear inside the steering gear can be reduced, the service life of the steering gear can be extended, and the safety and reliability of the steering gear can be improved.

[0006] According to some embodiments of the utility model, the servo further includes an outer shell, a rotary drive mechanism and a transmission mechanism, a first through hole is provided on the side wall of the outer shell, the output end of the rotary drive mechanism is connected to the output shaft through the transmission mechanism, the rotary drive mechanism and the transmission mechanism are both provided in the outer shell, and the output shaft extends to the outside of the outer shell through the first through hole.

[0007] According to some embodiments of the present invention, the transmission mechanism is a gear set.

[0008] According to some embodiments of the present invention, the rotation drive mechanism is a motor.

[0009] According to some embodiments of the utility model, the output shaft sleeve is provided with an external gear, the first claw plate is a middle rudder mother tooth, the claw portion of the first claw plate is a convex ridge on the middle rudder mother tooth, and the outer tooth surface of the output shaft is meshed with the inner tooth surface of the middle rudder mother tooth.

[0010] According to some embodiments of the utility model, the elastomer is ring-shaped, and a plurality of the elastic blades are evenly distributed on the peripheral wall of the elastomer. The inner wall of the elastomer is provided with a first groove in the area corresponding to the elastic blades, and the claw of the first claw plate extends into the first groove.

[0011] According to some embodiments of the utility model, the second claw plate is in a circular ring shape, and a second groove is formed between two adjacent elastic blades, and the claw portion of the second claw plate is inserted into the second groove.

[0012] According to some embodiments of the utility model, a second through hole is provided at the central axis of the second claw disk, a threaded hole is provided at the central axis of the end face of the output shaft, the limiting member is a bolt, the screw section of the bolt passes through the second through hole and is connected to the internal thread of the threaded hole by a threaded connection, and the end cap of the bolt is against the outer wall of the second claw disk.

[0013] According to some embodiments of the present utility model, a gasket is provided between the end cap of the bolt and the outer wall of the second claw disk.

[0014] According to some embodiments of the present invention, the elastic body is made of rubber material.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0017] Figure 1 This is a structural schematic diagram of a servo swing arm mechanism with buffer according to an embodiment of the utility model;

[0018] Figure 2 This is an exploded schematic diagram of a buffered steering gear swing arm mechanism after the housing is hidden in an embodiment of the utility model;

[0019] Figure 3This is a schematic diagram of the structure of a buffered steering gear swing arm mechanism after the housing is hidden in an embodiment of the utility model;

[0020] Figure 4 The figure is an exploded schematic diagram of a servo swing arm mechanism with buffer according to an embodiment of the utility model.

[0021] Figure Number:

[0022] A steering gear body 100; an output shaft 110; a first claw plate 120; a housing 130; a rotation drive mechanism 140; a transmission mechanism 150;

[0023] Elastic body 200; elastic blade 210; first groove 211; second groove 220;

[0024] The steering gear swing arm 300 ; the second claw plate 310 ; the limiter 311 ; and the gasket 312 . DETAILED DESCRIPTION

[0025] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0026] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1 , Figure 2 and Figure 4The utility model discloses a steering gear swing arm mechanism with buffer, comprising a steering gear body 100, an elastic body 200 and a steering gear swing arm 300, wherein the elastic body 200 is arranged between the steering gear body 100 and the steering gear swing arm 300, and the elastic body 200 plays the role of transmitting torque and buffering.

[0030] The servo body 100 includes an output shaft 110, on which a first claw plate 120 is provided, and a plurality of elastic blades 210 are distributed in an annular manner on the peripheral wall of the elastomer 200. A second claw plate 310 is provided at one end of the servo swing arm 300. The claw portion of the first claw plate 120, the elastomer 200 and the second claw plate 310 are coaxially arranged, and the claw portion of the first claw plate 120 and the claw portion of the second claw plate 310 are connected by elastic blades 210 to form a torque transmission unit. Multiple torque transmission units are distributed in an annular manner to transmit torque, and the second claw plate 310 is rotatably connected to the output shaft 110 through a limiting member 311 to limit the second claw plate 310 on the output shaft 110.

[0031] Because the claws of the first claw disc 120 and the claws of the second claw disc 310 are connected by elastic blades 210 to form a torque transmission unit, and multiple torque transmission units are distributed in a ring to transmit torque, when the output shaft 110 rotates, the first claw disc 120 will rotate with the output shaft 110, and the first claw disc 120 drives the second claw disc 310 to rotate through the elastic body 200, and the second claw disc 310 drives the steering gear swing arm 300 to rotate, and the steering gear swing arm 300 will swing, thereby realizing the steering operation of the steering gear. Since the elastic body 200 can be elastically deformed, the first claw disc 120 and the second claw disc 310 can rotate relative to each other, and when the output shaft 110 drives the steering gear swing arm 300 to rotate, the damage to the gear inside the steering gear can be reduced, the service life of the steering gear can be extended, and the safety and reliability of the steering gear can be improved.

[0032] The setting of the limiter 311 can prevent the second claw plate 310 and the servo swing arm 300 from being separated from the first claw plate 120 and the output shaft 110, ensuring that the first claw plate 120 can always transmit the torque to the second claw plate 310 and the servo swing arm 300.

[0033] See also Figure 2 and Figure 3 The steering gear body 100 further includes a housing 130, a rotation drive mechanism 140 and a transmission mechanism 150. The rotation drive mechanism 140 and the transmission mechanism 150 are both arranged in the housing 130, and a first through hole is arranged on the side wall of the housing 130. The output end of the rotation drive mechanism 140 is connected to the output shaft 110 through the transmission mechanism 150, and the output shaft 110 extends out of the housing 130 through the first through hole.

[0034] Furthermore, the rotation drive mechanism 140 is a motor, the transmission mechanism 150 is a gear set, the output end of the motor is transmission-connected to the input end of the gear set, the output end of the gear set is transmission-connected to the output shaft 110, and the gear set has the function of adjusting the output speed and output torque.

[0035] See also Figure 2 and Figure 4 The output shaft 110 is provided with a first claw plate 120, the claws of the first claw plate 120 are evenly distributed on the peripheral wall of the first claw plate 120, the first claw plate 120 is a middle rudder mother tooth, and the claws of the first claw plate 120 are convex edges on the middle rudder mother tooth. The output shaft 110 is sleeved with an external gear, the external tooth surface of the output shaft 110 and the internal tooth surface of the middle rudder mother tooth mesh with each other, the output shaft 110 drives the middle rudder mother tooth to rotate through the external gear and the internal tooth surface of the middle rudder mother tooth, that is, the output shaft 110 drives the first claw plate 120 to rotate.

[0036] Furthermore, the elastomer 200 is ring-shaped, and a plurality of elastic blades 210 are evenly distributed on the peripheral wall of the elastomer 200. The inner wall of the elastomer 200 is provided with a first groove 211 in the area corresponding to the elastic blade 210. The claw portion of the first claw plate 120 extends into the first groove 211, and the first claw plate 120 is inserted into the inner ring of the elastomer 200. When the first claw plate 120 rotates, it drives the elastomer 200 to rotate, that is, the first claw plate 120 drives the plurality of elastic blades 210 to rotate.

[0037] In this embodiment, the number of the first grooves 211 and the number of the elastic blades 210 are both three.

[0038] The elastic body 200 is made of rubber material, and the elastic body 200 has a certain elastic deformation ability. The rubber material is easy to obtain and easy to process, has high reliability and good performance. Of course, other materials can also be used instead of the rubber material.

[0039] See also Figure 2 and Figure 4 Furthermore, a second claw plate 310 is provided at one end of the steering gear swing arm 300, and the second claw plate 310 is in a circular ring shape. The claws of the second claw plate 310 are evenly distributed on the annular surface of the second claw plate 310, and a second groove 220 is formed between two adjacent elastic blades 210, and the claws of the second claw plate 310 are inserted into the second groove 220.

[0040] When the first claw plate 120 rotates, the claw of the first claw plate 120 squeezes the elastic blade 210, and the elastic blade 210 squeezes the claw of the second claw plate 310 and undergoes elastic deformation, thereby achieving torque transmission between the first claw plate 120 and the second claw plate 310. Since the elastic blade 210 can undergo elastic deformation, the first claw plate 120 is prevented from being impacted, thereby reducing the risk of damage to the internal gears of the servo.

[0041] See also Figure 4 A second through hole is provided at the center axis of the second claw disk 310, and a threaded hole is provided at the center axis of the end face of the output shaft 110. The limiting member 311 is a bolt, and the screw section of the bolt passes through the second through hole and is connected to the internal thread of the threaded hole by a threaded connection, wherein the end cap of the bolt is against the outer wall of the second claw disk 310, and a gasket 312 is provided between the end cap of the bolt and the outer wall of the second claw disk 310.

[0042] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A servo swing arm mechanism with buffer, characterized in that: include: A steering gear body (100), the steering gear body (100) comprising an output shaft (110), and a first claw plate (120) is provided on the output shaft (110); An elastic body (200), wherein a plurality of elastic blades (210) are distributed in an annular manner on a peripheral wall of the elastic body (200); A steering gear swing arm (300), wherein a second claw plate (310) is provided at one end of the steering gear swing arm (300), the claw portion of the first claw plate (120), the elastic body (200) and the second claw plate (310) are coaxially arranged, the claw portion of the first claw plate (120) and the claw portion of the second claw plate (310) are connected via the elastic blade (210) to form a torque transmission unit, a plurality of the torque transmission units are distributed in an annular shape to transmit torque, and the second claw plate (310) is rotatably connected to the output shaft (110) via a limiting member (311) to limit the second claw plate (310) on the output shaft (110).

2. A buffered steering gear swing arm mechanism according to claim 1, characterized in that: The steering gear body (100) further comprises a housing (130), a rotary drive mechanism (140) and a transmission mechanism (150); a first through hole is provided on a side wall of the housing (130); an output end of the rotary drive mechanism (140) is connected to the output shaft (110) via the transmission mechanism (150); the rotary drive mechanism (140) and the transmission mechanism (150) are both arranged in the housing (130); and the output shaft (110) extends out of the housing (130) through the first through hole.

3. A buffered steering gear swing arm mechanism according to claim 2, characterized in that: The transmission mechanism (150) is a gear set.

4. The cushioned steering gear swing arm mechanism according to claim 2, characterized in that: The rotation driving mechanism (140) is a motor.

5. The buffered steering gear swing arm mechanism according to claim 1, characterized in that: The output shaft (110) is sleeved with an external gear, the first claw plate (120) is a middle rudder mother tooth, the claw portion of the first claw plate (120) is a convex ridge on the middle rudder mother tooth, and the outer tooth surface of the output shaft (110) and the inner tooth surface of the middle rudder mother tooth are meshed with each other.

6. The buffered steering gear swing arm mechanism according to claim 5, characterized in that: The elastic body (200) is annular, and a plurality of elastic blades (210) are evenly distributed on the peripheral wall of the elastic body (200). The inner wall of the elastic body (200) is provided with a first groove (211) in an area corresponding to the elastic blades (210), and the claw portion of the first claw plate (120) extends into the first groove (211).

7. The buffered steering gear swing arm mechanism according to claim 1, characterized in that: The second claw plate (310) is in the shape of a ring, and a second groove (220) is formed between two adjacent elastic blades (210), and the claw portion of the second claw plate (310) is inserted into the second groove (220).

8. The cushioned steering gear swing arm mechanism according to claim 7, characterized in that: A second through hole is provided at the center axis of the second claw disk (310), a threaded hole is provided at the center axis of the end face of the output shaft (110), the limiting member (311) is a bolt, the screw section of the bolt passes through the second through hole and is connected to the internal thread of the threaded hole by threaded connection, and the end cap of the bolt abuts against the outer wall of the second claw disk (310).

9. The buffered steering gear swing arm mechanism according to claim 8, characterized in that: A gasket (312) is provided between the end cap of the bolt and the outer wall of the second claw plate (310).

10. The buffered steering gear swing arm mechanism according to claim 1, characterized in that: The elastic body (200) is made of rubber material.

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