Speed reducing mechanism for equipment rotation

Abstract

The speed reducing mechanism comprises a driving motor, a shell, a main transmission part, an auxiliary transmission part and an output shaft, the driving motor and the output shaft are rotationally borne on the shell, the main transmission part comprises a worm gear and a worm, the worm is coaxially connected with the driving motor, the auxiliary transmission part is coaxially connected with the worm gear, and the output shaft is rotationally borne on the shell. The worm gear is rotatably arranged on the shell in a bearing mode, the worm gear is meshed with the worm, the auxiliary transmission piece comprises a gear set and an output gear, the output gear is coaxially connected to the output shaft, the gear set is meshed with the worm gear and the output gear, the output shaft is used for being externally connected with turnover equipment, and the worm gear is meshed with the output gear. And a positioning plate is arranged on the shell, the positioning plate abuts against the front end of the worm arranged on the output shaft of the driving motor, and the rotating device has the effect of improving the stability of the rotating device when the rotating device is stopped at the spatial position.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a speed reduction mechanism for rotating equipment. Background Art

[0002] The reduction mechanism usually provides torque, adjusts speed, and changes the direction of rotation. It is particularly widely used in industrial production, home manufacturing, and electronic products.

[0003] In order to improve the overall user's sensory experience, some commercial display billboards, conference record boards, and exhibition hall screens often need to be rotated at multiple angles to adapt to different usage scenarios.

[0004] In the prior art, the reduction mechanism is usually driven by a motor to rotate a gear set, which gradually reduces the speed of the gear set to meet the required speed output, so that the reduction mechanism has a certain torque. At the same time, the device is coaxially fixed with the output shaft of the reduction mechanism to meet the requirement that the device can be parked in any spatial position.

[0005] However, during the above driving process, due to the clearance between the gear set and the components, when the driving mechanism stops running, the device will still swing in the direction of rotation of the output shaft within the spatial position.

[0006] In order to solve the above problems and improve the stability of the rotating equipment when it is parked in a spatial position, further improvements are needed. Utility Model Content

[0007] In order to improve the stability of a rotating device when it is parked in a spatial position, the present application provides a speed reduction mechanism for the rotation of the device.

[0008] The present application provides a reduction mechanism for equipment rotation using the following technical solution:

[0009] A reduction mechanism for rotating equipment, comprising a drive motor, a housing, a main transmission member, a secondary transmission member and an output shaft, wherein the drive motor and the output shaft are respectively rotatably supported on the housing, the main transmission member comprises a worm wheel and a worm, the worm is coaxially connected to the drive motor, the worm wheel is rotatably supported on the housing, the worm wheel is engaged with the worm, the secondary transmission member comprises a gear set and an output gear, the output gear is coaxially connected to the output shaft, the gear set is engaged with the worm wheel and the output gear, the output shaft is used for an external flipping device, a positioning plate is provided on the housing, and the positioning plate abuts against the front end of the worm provided on the output shaft of the drive motor.

[0010] By adopting the above technical solution, the drive motor drives the worm fixed coaxially therewith to rotate, thereby rotating the meshing worm wheel, gear set, and output gear. Through the step-by-step speed reduction of the gear set, a suitable rotational speed is output to the output shaft. At the same time, through the cooperation of the gear set and the output gear, a certain torque is provided to the output shaft, thereby achieving the rotation of the equipment carried by the output shaft along the direction of rotation of the output shaft. Due to the abutment of the front end of the worm set on the output shaft of the drive motor, the clearance of the worm along the axis of the output shaft of the drive motor is reduced, thereby reducing the clearance between the gear set, the worm wheel, and the output gear. This, to a certain extent, reduces the clearance of the output shaft along its rotation direction when the drive motor stops running, thereby improving the stability of the rotating equipment when it is parked in a spatial position.

[0011] Preferably, a steel ball is provided at one end of the worm away from the output shaft of the drive motor, the steel ball is rotatably supported on the worm, and the steel ball abuts against the positioning plate.

[0012] By adopting the above technical solution, the worm rotates synchronously with the drive motor, and the steel ball rotates on the worm, which reduces the friction between the worm and the positioning plate during rotation and slows down the wear rate of the contact surface between the positioning plate and the worm, thereby solving to a certain extent the problem of excessive gap between the gear set, the worm and the output gear caused by the wear of the contact surface between the positioning plate and the worm.

[0013] Preferably, a first bearing is provided on the positioning plate, an outer ring of the first bearing is rotatably supported on the positioning plate, and an inner ring of the first bearing abuts against the steel ball.

[0014] By adopting the above technical solution, the outer ring of the first bearing rotates and is carried on the positioning plate, and at the same time the steel ball rotates and abuts against the inner ring of the first bearing. Through the cooperation between the steel ball and the first bearing, the resistance when the drive motor drives the worm to rotate is reduced. Through the coordinated cooperation between the first bearing and the steel ball, the gap caused by wear of the steel ball or the positioning plate is further reduced.

[0015] Preferably, the shell includes a cover seat and a mounting seat, the cover seat is fixedly connected to the mounting seat, a bearing seat is provided on the mounting seat, a second bearing is provided in the bearing seat, and the output shaft is rotatably supported in the second bearing.

[0016] By adopting the above technical solution, the output gear is fixed coaxially with the output shaft. At the same time, the output shaft is rotatably supported in the second bearing, so that the geometric centers of the output gear and the second bearing are in the same axial direction, reducing the deflection of the output shaft when the carrying equipment rotates.

[0017] Preferably, the output shaft is arranged at a conical angle along the bearing seat to the end, and a flat position is provided on the output shaft.

[0018] By adopting the above technical solution, the output shaft is set at a cone angle. At the same time, the equipment shaft and the output shaft are matched with the same cone angle, which reduces the gap between the output shaft and the equipment shaft. At the same time, due to the positioning effect of the flat position, the shaking between the output shaft and the equipment shaft is further reduced, thereby reducing the stability of the output shaft-carrying equipment when it is parked in a spatial position when the drive motor stops running.

[0019] Preferably, a first mounting hole is opened at a corner of the cover seat, the first mounting hole is perpendicular to the output shaft, and the first mounting hole and the cover seat are integrally formed.

[0020] By adopting the above technical solution, a first mounting hole is opened at the corner of the cover seat, which reduces the overall volume of the cover seat. At the same time, the first mounting hole and the cover seat are integrally formed, which improves the stability of the connection between the first mounting hole and the cover seat.

[0021] Preferably, the mounting seat is provided with a U-shaped groove along its width direction, and the U-shaped groove is provided with a second mounting hole.

[0022] By adopting the above technical solution, a U-shaped groove is opened along the width direction of the mounting seat. The U-shaped groove is formed by the inward depression of the surface of the mounting seat, which improves the overall rigidity of the mounting seat. The second mounting hole is set in the U-shaped groove, which reduces the overall volume of the mounting seat and makes the external contour of the mounting seat more beautiful.

[0023] Preferably, the mounting seat is provided with a countersunk hole along its inner wall, and the countersunk hole is used to install the drive motor, and the drive motor is installed on the outer side wall of the mounting seat.

[0024] By adopting the above technical solution, the countersunk hole is formed along the inner wall of the mounting base, and the drive motor is installed on the mounting base from the inner wall of the mounting base to the outer wall of the mounting base, which improves the stability of the connection between the drive motor and the mounting base to a certain extent, and also reduces the space occupied by installing the drive motor.

[0025] In summary, this application includes at least one of the following beneficial technical effects:

[0026] 1. The front end of the worm gear mounted on the output shaft of the drive motor abuts against the worm gear, reducing the clearance of the worm gear along the axis of the output shaft of the drive motor. This reduces the clearance between the gear set, the worm wheel, and the output gear. This also reduces the clearance of the output shaft along its rotational direction when the drive motor stops running to a certain extent, thereby improving the stability of the rotating equipment when it is parked in space.

[0027] 2. The worm rotates synchronously with the drive motor, and the steel ball rotates on the worm, which reduces the friction between the worm and the positioning plate during rotation and slows down the wear rate of the contact surface between the positioning plate and the worm;

[0028] 3. A U-shaped groove is provided along the width direction of the mounting base. The U-shaped groove is formed by an inward depression on the surface of the mounting base, which improves the overall rigidity of the mounting base. The second mounting hole is set in the U-shaped groove, which reduces the overall volume of the mounting base and makes the external outline of the mounting base more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of a speed reduction mechanism for equipment rotation in an embodiment of the present application.

[0030] Figure 2 It is an exploded schematic diagram of a speed reduction mechanism for equipment rotation in an embodiment of the present application along the direction of the axis shown.

[0031] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.

[0032] Figure 4 It is a schematic diagram of the cover seat structure in the embodiment of the present application.

[0033] Explanation of the accompanying drawings: 1. Drive motor; 2. Housing; 21. Cover seat; 211. Third mounting hole; 212. First mounting hole; 22. Mounting seat; 221. Positioning plate; 2211. First bearing; 222. U-shaped groove; 2221. Second mounting hole; 223. Countersunk hole; 224. Bearing seat; 2241. Second bearing; 225. Bearing column; 3. Main transmission member; 31. Worm gear; 32. Worm; 321. Steel ball; 4. Auxiliary transmission member; 41. Gear set; 42. Output gear; 5. Output shaft; 51. Flat position. DETAILED DESCRIPTION

[0034] The directions mentioned or potentially mentioned in this specification, such as up, down, left, right, front, back, side, above, below, etc., are defined relative to the configurations shown in the accompanying drawings. The terms "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively. They are relative concepts and may vary depending on the location and usage of the component. Therefore, these or other directions should not be interpreted as limiting terms.

[0035] The following is combined with Figure 1-4 This application is described in further detail.

[0036] The embodiment of the present application discloses a speed reduction mechanism for rotating a device. Figure 1 and Figure 2A reduction mechanism for equipment rotation includes a drive motor 1, a housing 2, a main transmission member 3, an auxiliary transmission member 4 and an output shaft 5. The drive motor 1, the main transmission member 3, the auxiliary transmission member 4 and the output shaft 5 are respectively rotatably carried on the housing 2. The drive motor 1, the main transmission member 3 and the auxiliary transmission member 4 cooperate to drive the output shaft 5 to rotate. The output shaft 5 is due to an external flipping device.

[0037] Reference Figure 2 and Figure 4 The shell 2 includes a cover seat 21 and a mounting seat 22. The cover seat 21 is fixedly connected to the mounting seat 22. A first mounting hole 212 is opened at the corner of the cover seat 21. The first mounting hole 212 is perpendicular to the output shaft 5. The first mounting hole 212 and the cover seat 21 are integrally formed. The mounting seat 22 is opened along its width direction with a U-shaped groove 222, and a second mounting hole 2221 is provided on the U-shaped groove 222.

[0038] Specifically, the external contour of the cover seat 21 is set in the shape of a rectangular parallelepiped, and one corner of one side of the cover seat 21 along its length direction is chamfered. There are two first mounting holes 212, and the two mounting holes are integrally formed along the rounded corners of the cover seat 21 by casting. The two mounting holes are integrally formed at the corners of the cover seat 21, which reduces the overall volume of the cover seat 21 to a certain extent, making it easier to install the cover seat 21 at the set position through the mounting holes.

[0039] Furthermore, a hollow area (not shown in the figure) is provided on the other side of the cover seat 21 along its thickness direction for the main transmission member 3, the auxiliary transmission member 4 and the output shaft 5 to be set, and five third mounting holes 211 are provided on the inner wall of the mounting seat 22, and the five mounting holes are arranged in an array along the inner wall of the cover seat 21.

[0040] Correspondingly, the cross-sectional shape of the mounting seat 22 is L-shaped, and the bottom of the mounting seat 22 is fixedly connected to the cover seat 21 using bolts through five third mounting holes 211. The mounting seat 22 is fixedly connected to the cover seat 21 using bolts from the outside of the mounting seat 22, thereby improving the overall stability of the cover seat 21 and the mounting seat 22.

[0041] The U-shaped groove 222 is formed by an inward depression on the lower surface of the mounting base 22. A support plate (not shown) is integrally formed along the middle portion of the U-shaped groove 222 along its length by casting. The cooperation between the U-shaped groove 222 and the support plate improves the overall rigidity of the mounting base 22 to a certain extent and reduces deformation of the mounting base 22 caused by external pressure. Furthermore, the second mounting hole 2221 is provided on the support plate, reducing the volume occupied by the second mounting hole 2221, thereby reducing the overall volume of the mounting base 22 to a certain extent.

[0042] On the other hand, the inner wall of the mounting base 22 is provided with a through hole (not shown in the figure) for the output shaft of the drive motor 1 to pass through, and the inner wall of the mounting base 22 is provided with a countersunk hole 223. There are two countersunk holes 223. The two countersunk holes 223 are centered on the through hole and are evenly distributed on both sides of the through hole. The drive motor 1 is fixedly connected along the inner wall of the mounting base 22 by bolts through the two countersunk holes 223. Compared with the method of fixing the drive motor 1 and the mounting base 22 along the outer wall of the mounting base 22 to the inner wall of the mounting base 22, the method of fixing the drive motor 1 and the mounting base 22 with bolts through the inner wall of the mounting base 22 to the outer wall of the mounting base 22 can improve the stability of the connection between the drive motor 1 and the mounting base 22, and also reduce the volume occupied by fixing the drive motor 1 to the mounting base 22.

[0043] Reference Figure 2 and Figure 3 The main transmission member 3 includes a worm gear 31, and the worm 32 is coaxially connected to the drive motor 1. The worm gear 31 is rotatably supported on the housing 2, and the worm gear 31 is engaged with the worm 32. The auxiliary transmission member 4 includes a gear set 41 and an output gear 42. The output gear 42 is coaxially connected to the output shaft 5. The gear set 41 is engaged with the worm gear 31 and the output gear 42. The output shaft 5 is used for an external flip device. A bearing seat 224 is provided on the mounting seat 22, and a second bearing 2241 is provided in the bearing seat 224. The output shaft 5 is arranged at a cone angle along the bearing seat 224 to the end, and a flat position 51 is opened on the output shaft 5.

[0044] Specifically, a supporting column 225 is provided inside the mounting seat 22, and there are five supporting columns 225. The five supporting columns 225 are arranged in an array along the length direction of the covering seat 21. The spatial direction of the five supporting columns 225 is the same as the direction of the output shaft 5. The five supporting columns 225 are respectively formed integrally with the covering seat 21 by casting.

[0045] On the other hand, the worm 32 is coaxially connected to the output shaft of the driving motor 1 . Meanwhile, the worm wheel 31 is rotatably supported on the supporting column 225 close to the output shaft of the driving motor 1 , and the worm wheel 31 is meshed with the worm 32 .

[0046] At the same time, four gear sets 41 are provided, and the four gear sets 41 are meshed with each other and installed on the supporting column 225 located at the rear end of the worm gear 31.

[0047] Correspondingly, the cross-section of the bearing seat 224 is formed in a circular shape, and a through hole (not shown in the figure) for installing the second bearing 2241 is opened along its geometric center of the bearing seat 224. The second bearing 2241 is installed in the through hole, and the output shaft 5 is rotatably supported in the second bearing 2241, so that the geometric centers of the output gear 42 and the second bearing 2241 are in the same axial direction, reducing the deflection of the output shaft 5 when the supporting equipment rotates.

[0048] In addition, the output shaft 5 is set at a cone angle. At the same time, the device shaft and the output shaft 5 are matched with the same cone angle, which reduces the gap between the output shaft 5 and the device shaft. At the same time, due to the positioning effect of the flat position 51, the shaking between the output shaft 5 and the device shaft is further reduced, thereby reducing the stability of the output shaft 5 carrying the device when it stops in the spatial position when the drive motor 1 stops running.

[0049] Therefore, the driving motor 1 drives the worm 32 fixed coaxially therewith to rotate, thereby rotating the worm wheel 31, the gear set 41 and the output gear 42 meshing therewith. Through the step-by-step speed reduction of the gear set 41, a suitable speed is output to the output shaft 5. At the same time, through the cooperation of the gear set 41 and the output gear 42, a certain torque is provided to the output shaft 5, thereby realizing the rotation of the output shaft 5 carrying equipment along the rotation direction of the output shaft 5.

[0050] It should be noted that in this embodiment, five groups of supporting columns 225 and gear groups 41 are correspondingly provided to meet the speed requirements and torque requirements of the output shaft 5. In other embodiments, the supporting columns 225 and gear groups 41 can be increased or reduced according to the actual speed requirements or torque requirements. The four groups of gear groups 41 are all composed of driving gears and driven gears, which are conventional power transmission components. Their specific composition and working principle will not be described in detail in this embodiment.

[0051] Reference Figure 3 A positioning plate 221 is provided on the housing 2, and the positioning plate 221 abuts against the front end of the worm 32 provided on the output shaft of the drive motor 1. A steel ball 321 is provided at the end of the worm 32 away from the output shaft of the drive motor 1. The steel ball 321 is rotatably supported on the worm 32, and the steel ball 321 abuts against the positioning plate 221. A first bearing 2211 is provided on the positioning plate 221, and the outer ring of the first bearing 2211 is rotatably supported on the positioning plate 221, and the inner ring of the first bearing 2211 abuts against the steel ball 321.

[0052] Specifically, the positioning plate 221 is disposed on the mounting seat 22 . The cross-section of the positioning plate 221 is L-shaped. The bottom of the positioning plate 221 is fixed to the mounting seat 22 by bolts.

[0053] At the same time, a circular hole (not shown in the figure) is opened at the front end of the worm 32, and the steel ball 321 can be rotatably installed in the circular hole.

[0054] Correspondingly, a through hole (not shown) is opened on the side wall of the positioning plate 221 , and the first bearing 2211 is installed in the through hole. At the same time, the steel ball 321 abuts against the inner ring of the first bearing 2211 .

[0055] Therefore, the cooperation between the steel ball 321 and the first bearing 2211 reduces the resistance when the drive motor 1 drives the worm 32 to rotate, and the coordinated cooperation between the first bearing 2211 and the steel ball 321 further reduces the gap caused by the wear of the steel ball 321 or the positioning plate 221.

[0056] The implementation principle of a speed reduction mechanism for equipment rotation in the embodiment of the present application is as follows: the driving motor 1 drives the worm 32 fixed coaxially therewith to rotate, thereby rotating the worm wheel 31, the gear set 41 and the output gear 42 meshing therewith, and outputs a suitable speed to the output shaft 5 through the step-by-step speed reduction of the gear set 41. At the same time, a certain torque is provided to the output shaft 5 through the cooperation of the gear set 41 and the output gear 42, thereby realizing that the output shaft 5 carries the equipment to rotate along the rotation direction of the output shaft 5; at the same time, a steel ball 321 is installed at the front end of the worm 32, and a positioning plate 221 is installed on the mounting seat 22, and the positioning plate 2 A first bearing 2211 is installed on 21. When the driving motor 1 drives the worm 32 to rotate, the steel ball 321 abuts against the inner ring of the first bearing 2211. Through the cooperation between the steel ball 321 and the first bearing 2211, the clearance between the worm 32, the worm wheel 31, the gear set 41 and the output gear 42 is reduced, thereby reducing the resistance when the driving motor 1 drives the worm 32 to rotate. Through the coordinated cooperation between the first bearing 2211 and the steel ball 321, the clearance caused by the wear of the steel ball 321 or the positioning plate 221 is further reduced, thereby improving the stability of the rotating equipment when it is parked in a spatial position.

[0057] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A speed reduction mechanism for equipment rotation, characterized in that: The invention comprises a driving motor (1), a housing (2), a main transmission member (3), an auxiliary transmission member (4) and an output shaft (5), wherein the driving motor (1) and the output shaft (5) are respectively rotatably supported on the housing (2), the main transmission member (3) comprises a worm wheel (31) and a worm (32), the worm (32) is coaxially connected to the driving motor (1), the worm wheel (31) is rotatably supported on the housing (2), and the worm wheel (31) is meshed with the worm (32). ), the auxiliary transmission member (4) comprises a gear set (41) and an output gear (42), the output gear (42) is coaxially connected to the output shaft (5), the gear set (41) is meshed with the worm gear (31) and the output gear (42), the output shaft (5) is used for an external turning device, and a positioning plate (221) is provided on the housing (2), and the positioning plate (221) is in contact with the front end of the worm (32) provided on the output shaft of the drive motor (1).

2. A speed reduction mechanism for equipment rotation according to claim 1, characterized in that: A steel ball (321) is provided at one end of the worm (32) away from the output shaft of the drive motor (1); the steel ball (321) is rotatably supported on the worm (32); and the steel ball (321) abuts against the positioning plate (221).

3. A speed reduction mechanism for equipment rotation according to claim 2, characterized in that: A first bearing (2211) is disposed on the positioning plate (221); an outer ring of the first bearing (2211) is rotatably supported on the positioning plate (221); and an inner ring of the first bearing (2211) is in contact with the steel ball (321).

4. A speed reduction mechanism for equipment rotation according to claim 1, characterized in that: The housing (2) comprises a cover seat (21) and a mounting seat (22); the cover seat (21) is fixedly connected to the mounting seat (22); a bearing seat (224) is arranged on the mounting seat (22); a second bearing (2241) is arranged in the bearing seat (224); and the output shaft (5) is rotatably supported in the second bearing (2241).

5. A speed reduction mechanism for equipment rotation according to claim 4, characterized in that: The output shaft (5) is arranged at a conical angle from the bearing seat (224) to the end, and a flat portion (51) is provided on the output shaft (5).

6. A speed reduction mechanism for equipment rotation according to claim 4, characterized in that: A first mounting hole (212) is provided at a corner of the cover seat (21); the first mounting hole (212) is vertically arranged with the output shaft (5); and the first mounting hole (212) and the cover seat (21) are integrally formed.

7. A speed reduction mechanism for equipment rotation according to claim 4, characterized in that: The mounting seat (22) is provided with a U-shaped groove (222) along its width direction, and a second mounting hole (2221) is provided on the U-shaped groove (222).

8. A speed reduction mechanism for equipment rotation according to claim 4, characterized in that: The mounting seat (22) is provided with a countersunk hole (223) along its inner wall, and the countersunk hole (223) is used to install the drive motor (1). The drive motor (1) is installed on the outer wall of the mounting seat (22).

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