Worm and gear running-in clamping and limiting mechanism with angle limiting function

Abstract

The utility model discloses a worm gear and worm running-in clamping and limiting mechanism with an angle limiting function, and relates to the technical field of worm gear and worm running-in, the mechanism comprises a bottom plate, a rotating frame, first fixing plates, second fixing plates, a rotating assembly and a clamping assembly, the upper surface of the bottom plate is fixedly connected with the two second fixing plates, and the two second fixing plates are fixedly connected with the rotating assembly. A first fixing plate is fixedly connected to the upper surface of the bottom plate, a rotating shaft is rotatably connected to the side wall of the first fixing plate in a penetrating mode through a bearing, a rotating frame is fixedly connected to one end of the rotating shaft, a rotating cylinder is rotatably connected to the top wall of the rotating frame in a penetrating mode through a bearing, and a connecting cylinder is fixedly connected to the upper surface of the rotating cylinder. The angle of the worm and gear reducer is adjusted through the rotating assembly, so that the worm gear and the worm can be in running-in when the worm and gear reducer is located at any angle, and the worm and gear reducer is better in application effect in different scene angles.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear running-in, in particular to a clamping and limiting mechanism for worm gear running-in with an angle limiting function. Background Art

[0002] In the gear rack type automobile electric power steering, there is a worm gear reduction structure. In order to make it engage better, the worm gear reduction mechanism needs to be run-in when the steering gear is assembled.

[0003] However, the existing worm gear reduction mechanism running-in mechanism does not have an angle adjustment function, resulting in that the worm wheel and worm of the transmission cannot be run-in according to the actual working condition when the actual working condition of the transmission is not horizontal, and the running-in effect is poor.

[0004] Based on this, a clamping and limiting mechanism for worm gear running-in with an angle limiting function is now provided, which can eliminate the disadvantages of the existing device. Utility Model Content

[0005] The utility model aims to provide a worm gear running-in clamping and limiting mechanism with an angle limiting function, so as to solve the problem that the existing worm gear reduction mechanism running-in mechanism in the background technology has no angle adjustment function.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The worm gear running-in clamping and limiting mechanism with angle limiting function comprises a base plate, a rotating frame, a first fixed plate, a second fixed plate, and also comprises a rotating assembly and a clamping assembly, wherein the upper surface of the base plate is fixedly connected with two second fixed plates, the upper surface of the base plate is fixedly connected with the first fixed plate, the side wall of the first fixed plate is rotatably connected with a rotating shaft through a bearing, one end of the rotating shaft is fixedly connected with the rotating frame, the top wall of the rotating frame is rotatably connected with a rotating cylinder through a bearing, the upper surface of the rotating cylinder is fixedly connected with a connecting cylinder, the upper surface of the connecting cylinder is fixedly connected with a rotating plate, the side wall of the rotating plate is provided with a hole corresponding to the connecting cylinder, the rotating assembly is arranged on the upper surface of the base plate for driving the rotating frame to rotate, and the clamping assembly is arranged in the rotating cylinder for clamping the loading shaft of the worm gear.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the rotating assembly includes a worm wheel, a worm, and a first motor. The two second fixed plates are rotatably connected with a worm through a bearing. The upper surface of the base plate is fixedly connected to the first motor through a bracket. The output end of the first motor is fixedly connected to one end of the worm. The end of the rotating shaft away from the rotating frame is fixedly connected to a worm wheel, and the worm wheel is meshed with the worm.

[0010] In an optional scheme: the clamping assembly includes a clamping plate, a second motor, a movable plate, a gear, and a rack, a clamping plate groove is provided on the upper surface of the rotating drum, a second motor cavity and a gear cavity are provided in the rotating drum, the second motor cavity bottom wall is fixedly connected to the second motor, the second motor output end extends through the gear cavity, the second motor output end is fixedly connected to the gear, the gear cavity top wall is provided with two movable plate grooves, the gear cavity and the clamping plate groove are connected through the movable plate groove, the inner side walls of the two movable plate grooves are slidably connected to movable plates, the movable plate is L-shaped, and the bottom wall of the clamping plate groove is slidably connected to two clamping plates, the two clamping plates are fixedly connected to the two movable plates, the side walls of the two movable plates located in the gear cavity are fixedly connected to racks, the two racks are meshed with the gear together, and the opposite side walls of the two clamping plates are provided with threads.

[0011] In an optional solution: the lower surfaces of the two racks are fixedly connected with limit blocks, the bottom wall of the gear cavity is provided with two limit block grooves, and the limit blocks are slidably connected to the inner side walls of the limit block grooves.

[0012] In an optional solution: the first motor and the worm are connected via a speed reducer.

[0013] In an optional solution: the side wall of the rotating frame is provided with a chamfer.

[0014] In an optional solution, a load is arranged under the rotating drum.

[0015] In an optional solution: a positioning block is fixedly connected to the upper surface of the rotating plate, and four threaded holes are opened on the upper surface of the positioning block. The worm gear reducer to be run-in is threadedly connected to the four threaded holes through bolts.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model starts a first motor, the first motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the rotating frame to rotate as a whole through the rotating shaft, so as to adjust the angle of the worm gear reducer, so that the worm wheel and the worm can be run-in when the worm gear reducer is at any angle, so that the worm gear reducer can be better applied in different scene angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 This is a first viewing angle diagram of the present invention.

[0020] Figure 3 This is a second viewing angle diagram of the present invention.

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 5 It is a schematic diagram of the internal structure of the utility model.

[0023] Figure 6 This is a schematic diagram of the structure of the clamping assembly of the utility model.

[0024] Figure 7 It is a schematic diagram of the clamping plate structure of the utility model.

[0025] Notes on figure numbers: 1 base plate, 2 rotating frame, 3 rotating cylinder, 4 rotating plate, 5 positioning block, 6 first fixed plate, 7 second fixed plate, 8 rotating shaft, 9 worm gear, 10 worm, 11 first motor, 12 load, 13 clamping plate, 14 connecting cylinder, 15 second motor, 16 moving plate, 17 gear, 18 rack, 19 limit block. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] Example 1

[0028] In one embodiment, Figure 1-Figure 7 As shown, a clamping and limiting mechanism for worm gear running-in with an angle limiting function comprises a base plate 1, a rotating frame 2, a first fixed plate 6, a second fixed plate 7, and also comprises a rotating assembly and a clamping assembly. Two second fixed plates 7 are fixedly connected to the upper surface of the base plate 1, and the first fixed plate 6 is fixedly connected to the upper surface of the base plate 1. The side wall of the first fixed plate 6 is rotatably connected to a rotating shaft 8 through a bearing, and one end of the rotating shaft 8 is fixedly connected to the rotating frame 2, and the top wall of the rotating frame 2 is rotatably connected to a rotating cylinder 3 through a bearing, and the upper surface of the rotating cylinder 3 is fixedly connected to a connecting cylinder 14, and the upper surface of the connecting cylinder 14 is fixedly connected to a rotating plate 4, and the side wall of the rotating plate 4 is provided with a hole corresponding to the connecting cylinder 14. The rotating assembly is arranged on the upper surface of the base plate 1 for driving the rotating frame 2 to rotate, and the clamping assembly is arranged in the rotating cylinder 3 for clamping the loading shaft of the worm gear.

[0029] In one embodiment, Figure 2 As shown, the rotating assembly includes a worm wheel 9, a worm 10, and a first motor 11. The worm 10 is rotatably connected between the two second fixed plates 7 through a bearing. The first motor 11 is fixedly connected to the upper surface of the bottom plate 1 through a bracket. The output end of the first motor 11 is fixedly connected to one end of the worm 10. The end of the rotating shaft 8 away from the rotating frame 2 is fixedly connected to the worm wheel 9, and the worm wheel 9 is meshed with the worm 10. After fixing the loading shaft of the worm gear reducer, start the first motor 11, the first motor 11 drives the worm 10 to rotate, the worm 10 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the rotating frame 2 to rotate as a whole through the rotating shaft 8. The angle of the worm gear reducer is adjusted, so that the worm wheel and the worm can be run-in when the worm gear reducer is at any angle, thereby improving the running-in effect of the worm gear reducer.

[0030] In one embodiment, Figure 5 and Figure 6 As shown, the clamping assembly includes a clamping plate 13, a second motor 15, a moving plate 16, a gear 17, and a rack 18. A clamping plate groove is provided on the upper surface of the rotating drum 3, and a second motor cavity and a gear cavity are provided in the rotating drum 3. The second motor 15 is fixedly connected to the bottom wall of the second motor cavity, and the output end of the second motor 15 extends through the gear cavity. The output end of the second motor 15 is fixedly connected to the gear 17. Two moving plate grooves are provided on the top wall of the gear cavity. The gear cavity is connected to the clamping plate groove through the moving plate groove. The inner side walls of the two moving plate grooves are slidably connected with the moving plates 16. The moving plates 16 are L-shaped, and the bottom wall of the clamping plate groove is slidably connected with two clamping plates 13. The two clamping plates 13 are fixedly connected to the two moving plates 16. The side walls of the two moving plates 16 located in the gear cavity are fixedly connected with racks 18, and the two racks 18 are meshed with the gear 17 together. The opposite side walls of the two clamping plates 13 are provided with threads. Start the second motor 15, the second motor 15 drives the gear 17 to rotate, the gear 17 drives the two racks 18 to move toward each other, the two racks 18 drive the two movable plates 16 to move toward each other, the two movable plates 16 drive the two clamping plates 13 to move toward each other, and the loading shaft of the worm gear reducer is clamped and fixed, and the clamping plate 13 is provided with a thread, which can be threadedly connected with the loading shaft of the worm gear reducer for fixed cooperation.

[0031] In one embodiment, Figure 7 As shown, the lower surfaces of the two racks 18 are fixedly connected with limit blocks 19, and the bottom wall of the gear cavity is provided with two limit block grooves, and the limit blocks 19 are slidably connected with the inner side walls of the limit block grooves. The limit blocks 19 can limit the moving direction of the rack 18 to prevent the rack 18 from sliding and deviating.

[0032] In one embodiment, the first motor 11 is connected to the worm 10 via a reducer. The first motor 11 is equipped with a reducer to increase the torque. When the load is large, it is not cost-effective to simply increase the power of the first motor 11.

[0033] Example 2

[0034] In one embodiment, Figure 1 and Figure 2 As shown, the side wall of the rotating frame 2 is provided with chamfers to prevent people from being injured by collisions.

[0035] In one embodiment, Figure 5 As shown, a load 12 is provided below the drum 3. By increasing the load 12, the worm gear is fully run-in before assembly.

[0036] In one embodiment, Figure 4 As shown, a positioning block 5 is fixedly connected to the upper surface of the rotating plate 4, and four threaded holes are opened on the upper surface of the positioning block 5. The worm gear reducer to be run-in is threadedly connected to the four threaded holes through bolts. The worm gear reducer to be run-in is guided by the positioning block 5 so that its loading axis is located at the center of the connecting cylinder 14, and the worm gear reducer to be run-in is fixed to the positioning block 5 by bolts.

[0037] The above embodiment discloses a worm gear running-in clamping and limiting mechanism with an angle limiting function. The loading shaft of the worm gear reducer to be run-in is inserted into the connecting cylinder 14, and the worm gear reducer to be run-in is guided by the positioning block 5 so that its loading shaft is located at the center of the connecting cylinder 14, and the worm gear reducer to be run-in is fixed on the positioning block 5 by bolts.

[0038] The second motor 15 is started, and the second motor 15 drives the gear 17 to rotate, and the gear 17 drives the two racks 18 to move toward each other, and the two racks 18 drive the two moving plates 16 to move toward each other, and the two moving plates 16 drive the two clamping plates 13 to move toward each other, and the loading shaft of the worm gear reducer is clamped and fixed, and the clamping plate 13 is provided with a thread, which can be threadedly connected with the loading shaft of the worm gear reducer for matching and fixing;

[0039] After fixing the loading shaft of the worm gear reducer, start the first motor 11, the first motor 11 drives the worm 10 to rotate, the worm 10 drives the worm wheel 9 to rotate, and the worm wheel 9 drives the rotating frame 2 to rotate as a whole through the rotating shaft 8, and adjusts the angle of the worm gear reducer so that the worm wheel and the worm can be run-in when the worm gear reducer is at any angle, so that the worm gear reducer can be better applied in different scene angles.

[0040] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A worm gear running-in clamping and limiting mechanism with an angle limiting function, comprising a base plate (1), a rotating frame (2), a first fixing plate (6), and a second fixing plate (7), characterized in that: The invention also comprises a rotating assembly and a clamping assembly, wherein two second fixed plates (7) are fixedly connected to the upper surface of the bottom plate (1), a first fixed plate (6) is fixedly connected to the upper surface of the bottom plate (1), a rotating shaft (8) is rotatably connected to the side wall of the first fixed plate (6) through a bearing, one end of the rotating shaft (8) is fixedly connected to a rotating frame (2), a rotating drum (3) is rotatably connected to the top wall of the rotating frame (2) through a bearing, a connecting drum (14) is fixedly connected to the upper surface of the rotating drum (3), a rotating plate (4) is fixedly connected to the upper surface of the connecting drum (14), a hole corresponding to the connecting drum (14) is opened on the side wall of the rotating plate (4), the rotating assembly is arranged on the upper surface of the bottom plate (1) and is used to drive the rotating frame (2) to rotate, and the clamping assembly is arranged in the rotating drum (3) and is used to clamp the loading shaft of the worm gear.

2. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 1 is characterized in that: The rotating assembly comprises a worm wheel (9), a worm (10), and a first motor (11); the two second fixed plates (7) are rotatably connected to the worm (10) via a bearing, the upper surface of the bottom plate (1) is fixedly connected to the first motor (11) via a bracket, the output end of the first motor (11) is fixedly connected to one end of the worm (10), and the end of the rotating shaft (8) away from the rotating frame (2) is fixedly connected to the worm wheel (9), and the worm wheel (9) is meshed with the worm (10).

3. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 2 is characterized in that: The clamping assembly comprises a clamping plate (13), a second motor (15), a moving plate (16), a gear (17), and a rack (18); a clamping plate groove is provided on the upper surface of the rotating drum (3); a second motor cavity and a gear cavity are provided in the rotating drum (3); a second motor (15) is fixedly connected to the bottom wall of the second motor cavity; an output end of the second motor (15) extends through the gear cavity; a gear (17) is fixedly connected to the output end of the second motor (15); two moving plate grooves are provided on the top wall of the gear cavity; The clamping plate groove is connected to the gear cavity through a movable plate groove. The inner side walls of the two movable plate grooves are slidably connected with movable plates (16). The movable plates (16) are L-shaped. The inner bottom wall of the clamping plate groove is slidably connected with two clamping plates (13). The two clamping plates (13) are fixedly connected to the two movable plates (16). The side walls of the two movable plates (16) located in the gear cavity are fixedly connected with racks (18). The two racks (18) are meshed with the gear (17) together. The opposite side walls of the two clamping plates (13) are provided with threads.

4. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 3 is characterized in that: The lower surfaces of the two racks (18) are fixedly connected to limit blocks (19), the inner bottom wall of the gear cavity is provided with two limit block grooves, and the limit blocks (19) are slidably connected to the inner side walls of the limit block grooves.

5. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 2, characterized in that: The first motor (11) and the worm (10) are connected in transmission via a reducer.

6. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 1, characterized in that: The side wall of the rotating frame (2) is provided with a chamfer.

7. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 1, characterized in that: A load (12) is arranged below the rotating drum (3).

8. The worm gear running-in clamping and limiting mechanism with angle limiting function according to claim 1, characterized in that: A positioning block (5) is fixedly connected to the upper surface of the rotating plate (4), and four threaded holes are formed on the upper surface of the positioning block (5).

Images