Worm and gear speed reducer with adjustable gear clearance

Abstract

The utility model relates to the technical field of worm and gear speed reducers, and discloses a worm and gear speed reducer with an adjustable gear clearance, which comprises a shell, one side of the shell is communicated and connected with an input structure, the bottom of the input structure is meshed and connected with an output assembly, and one end of the output assembly is rotatably connected with a rotating assembly. The surface of the rotating assembly is connected to the other side of the shell in a penetrating mode. Through the arrangement of the output assembly, when a user uses the worm and gear speed reducer, the threaded rod in threaded connection with the threaded cylinder is screwed out, the connecting plate is fixedly connected to one end of the threaded rod, the connecting plate drives the gear A and the gear B to move outwards, the gear A is separated from the lead screw, and meanwhile the gear B is clamped into the lead screw; therefore, according to the worm and gear speed reducer, the gear clearance can be adjusted by replacing the gears, the speed reduction effect of the worm and gear speed reducer is changed, and the applicability of the worm and gear speed reducer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reducers, in particular to a worm gear reducer with adjustable gear clearance. Background Art

[0002] A worm gear reducer is a mechanical device that uses a worm wheel and a worm to drive a machine. It is mainly used to reduce speed and increase torque. Its working principle is that the worm and the worm wheel are meshing. The rotation of the worm will drive the worm wheel to rotate, thereby achieving speed reduction. Worm gear reducers are widely used in various mechanical equipment, such as automated production lines, conveyor belts, cranes, etc.

[0003] In the worm gear reducer disclosed in publication number CN202545767U, although, in the worm gear reducer of the utility model, the center of the worm wheel is connected to the output shaft, the worm wheel engages the worm, and the worm is fixed to the housing through a deep groove ball bearing, achieving the effect of smooth transmission and low noise. A sealed cavity is formed by the upper cover plate and the lower cover plate, which enables the worm gear reducer to work for a long time in various working environments. It has a simple structure and is very practical.

[0004] However, the worm gear reducer has the following disadvantages:

[0005] The worm gear reducer needs to be used in different occasions. It is not convenient to change the deceleration effect of the worm gear reducer by adjusting the gear clearance, which reduces the applicability of the worm gear reducer. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a worm gear reducer with adjustable gear clearance.

[0007] The utility model is implemented by the following technical scheme: a worm gear reducer with adjustable gear clearance, comprising a shell, one side of the shell is connected through an input structure, the bottom of the input structure is meshingly connected with an output component, one end of the output component is rotatably connected with a rotating component, and the surface of the rotating component is connected through the other side of the shell.

[0008] As a further improvement of the above scheme, the output assembly includes a gear A meshingly connected to the bottom of the input structure, one side of the gear A is fixedly connected to the gear B, one side of the gear B is fixedly connected to the output end, the surface of the output end is through-connected to one side of the housing, the other side of the gear A is fixedly connected to a connecting plate, one side of the connecting plate is rotatably connected to a threaded rod, and one end of the threaded rod is fixedly connected to a rotating assembly.

[0009] Through the above technical solution, by setting the output end, the structure connected to the output end can rotate at the speed of the worm gear after deceleration.

[0010] As a further improvement of the above scheme, the rotating assembly includes a hexagonal block fixedly connected to one end of the threaded rod, a circular handle is overlapped on the surface of the hexagonal block, one side of the hexagonal block is fixedly connected to a limiting block, and one side of the limiting block is overlapped with a circular handle.

[0011] Through the above technical solution and the setting of the limit block, the connection firmness of the circular handle is improved when the circular handle is rotated.

[0012] As a further improvement of the above solution, the input structure includes an input end connected to one side of the housing, one end of the input end is fixedly connected to a screw rod, and the bottom of the screw rod is meshedly connected to an A gear.

[0013] Through the above technical solution, through the setting of the input structure, the object connected to the input end drives the input end to rotate and drives the screw rod to rotate, and then drives the gear at the bottom of the screw rod and the output end to rotate through the screw rod, and the input speed is reduced and then output.

[0014] As a further improvement of the above solution, a bearing is sleeved on the surface of the screw rod, two bearings are provided, and the surface of the bearing is fixedly connected to the inside of the housing.

[0015] Through the above technical solution, through the setting of the bearing, the energy lost when the screw rod rotates is reduced through the rotation connection.

[0016] As a further improvement of the above solution, a threaded barrel is threadedly connected to the surface of the threaded rod, and the surface of the threaded barrel is connected to the surface of the shell through a through hole.

[0017] Through the above technical solution and the arrangement of the threaded barrel, the purpose of enabling the threaded rod to be screwed in and out through the thread between the threaded barrel and the threaded rod when the threaded rod is rotated is achieved.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The utility model provides an output component, when the user uses the worm gear reducer, the user rotates the threaded rod to screw out the threaded rod which is threadedly connected to the threaded barrel; because one end of the threaded rod is fixedly connected to a connecting plate, the connecting plate drives gear A and gear B to move outward, so that gear A is separated from the screw rod and gear B is inserted into the screw rod at the same time, so that the worm gear reducer can adjust the gear clearance by replacing the gears and thus change the deceleration effect of the worm gear reducer, thereby improving the applicability of the worm gear reducer.

[0020] The utility model provides a rotating assembly, and when the user adjusts the gear spacing through the output assembly, the user holds the round handle and rotates it. The round handle fits with the hexagonal block through the hexagonal groove opened in the center, so that the user can effectively transmit force to the threaded rod during the process of rotating the round handle, thereby achieving the purpose of making it easy for the user to rotate the threaded rod and improving the convenience of changing the gear gap by providing the output assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the output component of the utility model;

[0024] Figure 4 It is a schematic diagram of the structure of the rotating assembly of the utility model.

[0025] Description of main symbols:

[0026] 1. Housing; 2. Input structure; 201. Input end; 202. Screw; 3. Output assembly; 301. Gear A; 302. Gear B; 303. Output end; 304. Connecting plate; 305. Threaded rod; 4. Rotating assembly; 401. Hexagonal block; 402. Round handle; 403. Limit block; 5. Bearing; 6. Threaded barrel. DETAILED DESCRIPTION

[0027] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0028] Example:

[0029] Please combine Figure 1-4The present embodiment is a worm gear reducer with adjustable gear clearance, comprising a housing 1, one side of the housing 1 is connected through an input structure 2, the bottom of the input structure 2 is meshedly connected with an output assembly 3, by setting the output assembly 3, when the user uses the worm gear reducer, the threaded rod 305 is rotated to make the threaded rod 305 threadedly connected with the threaded barrel 6 unscrewed, and since one end of the threaded rod 305 is fixedly connected with a connecting plate 304, the connecting plate 304 drives the A gear 301 and the B gear 302 to move outward, so that the A gear 301 is separated from the screw rod 202 and the B gear 302 is stuck in the screw rod 202, so that the worm gear reducer can be adjusted by replacing the gears. The gear clearance thereby changes the deceleration effect of the worm gear reducer, thereby improving the applicability of the worm gear reducer. One end of the output component 3 is rotatably connected to the rotating component 4. By setting the rotating component 4, the user holds the circular handle 402 and rotates it when adjusting the gear spacing through the output component 3. The circular handle 402 fits with the hexagonal block 401 through the hexagonal groove opened in the center, so that the user can effectively transmit force to the threaded rod 305 during the process of rotating the circular handle 402, thereby achieving the purpose of making it easy for the user to rotate the threaded rod 305 and improving the convenience of changing the gear clearance by setting the output component 3. The surface of the rotating component 4 is through-connected to the other side of the outer shell 1.

[0030] The output component 3 includes an A gear 301 meshingly connected to the bottom of the input structure 2, one side of the A gear 301 is fixedly connected to the B gear 302, one side of the B gear 302 is fixedly connected to the output end 303, the surface of the output end 303 is through-connected to one side of the housing 1, the other side of the A gear 301 is fixedly connected to a connecting plate 304, one side of the connecting plate 304 is rotatably connected to a threaded rod 305, one end of the threaded rod 305 is fixedly connected to the rotating component 4, and through the setting of the output end 303, the structure connected to the output end 303 can rotate at the speed after the worm gear is reduced.

[0031] The rotating component 4 includes a hexagonal block 401 fixedly connected to one end of the threaded rod 305, and a circular handle 402 is overlapped on the surface of the hexagonal block 401. A limiting block 403 is fixedly connected to one side of the hexagonal block 401, and a circular handle 402 is overlapped on one side of the limiting block 403. Through the setting of the limiting block 403, the connection firmness of the circular handle 402 is improved when the circular handle 402 is rotated.

[0032] The input structure 2 includes an input end 201 connected to one side of the housing 1, one end of the input end 201 is fixedly connected to a screw rod 202, and the bottom of the screw rod 202 is meshedly connected to a gear A 301. Through the setting of the input structure 2, the object connected to the input end 201 drives the input end 201 to rotate and drives the screw rod 202 to rotate at the same time, and then drives the gear at the bottom of the screw rod 202 and the output end 303 to rotate through the screw rod 202, so that the input speed is reduced and then output.

[0033] The surface of the screw rod 202 is sleeved with a bearing 5, and two bearings 5 ​​are provided. The surface of the bearing 5 is fixedly connected to the inside of the housing 1. Through the provision of the bearing 5, the energy lost when the screw rod 202 rotates is reduced through the rotation connection.

[0034] The surface of the threaded rod 305 is threadedly connected to the threaded barrel 6, and the surface of the threaded barrel 6 is connected to the surface of the shell 1. Through the arrangement of the threaded barrel 6, the threaded rod 305 can be screwed in and out through the thread between the threaded barrel 6 when rotating.

[0035] The implementation principle of a worm gear reducer with adjustable gear clearance in the embodiment of the present application is as follows: when the user adjusts the gear spacing through the output component 3, the user holds the circular handle 402 and rotates it. The circular handle 402 fits with the hexagonal block 401 through the hexagonal groove opened in the center, so that the user can effectively transmit force to the threaded rod 305 to drive the threaded rod 305 to rotate during the rotation of the circular handle 402, and at the same time, the threaded rod 305 threadedly connected to the threaded tube 6 is screwed out. Since one end of the threaded rod 305 is fixedly connected to the connecting plate 304, the connecting plate 304 drives the A gear 301 and the B gear 302 to move outward, so that the A gear 301 is disengaged from the screw rod 202 and the B gear 302 is stuck in the screw rod 202, so that the worm gear reducer can adjust the gear clearance by replacing the gears and thus change the deceleration effect of the worm gear reducer.

[0036] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A worm gear reducer with adjustable gear clearance, comprising a housing (1), characterized in that: One side of the housing (1) is connected to the input structure (2), the bottom of the input structure (2) is meshingly connected to the output component (3), one end of the output component (3) is rotatably connected to the rotating component (4), and the surface of the rotating component (4) is connected to the other side of the housing (1).

2. A worm gear reducer with adjustable gear clearance as claimed in claim 1, characterized in that: The output assembly (3) comprises an A gear (301) meshingly connected to the bottom of the input structure (2); one side of the A gear (301) is fixedly connected to a B gear (302); one side of the B gear (302) is fixedly connected to an output end (303); a surface of the output end (303) is through-connected to one side of the housing (1); the other side of the A gear (301) is fixedly connected to a connecting plate (304); one side of the connecting plate (304) is rotatably connected to a threaded rod (305); one end of the threaded rod (305) is fixedly connected to a rotating assembly (4).

3. The worm gear reducer with adjustable gear clearance as claimed in claim 1, characterized in that: The rotating assembly (4) comprises a hexagonal block (401) fixedly connected to one end of the threaded rod (305), a circular handle (402) being overlapped on the surface of the hexagonal block (401), a limiting block (403) being fixedly connected to one side of the hexagonal block (401), and a circular handle (402) being overlapped on one side of the limiting block (403).

4. The worm gear reducer with adjustable gear clearance according to claim 1, characterized in that: The input structure (2) comprises an input end (201) connected to one side of the housing (1), one end of the input end (201) is fixedly connected to a screw rod (202), and the bottom of the screw rod (202) is meshingly connected to an A gear (301).

5. A worm gear reducer with adjustable gear clearance as claimed in claim 4, characterized in that: A bearing (5) is sleeved on the surface of the screw rod (202), two bearings (5) are provided, and the surface of the bearing (5) is fixedly connected to the inside of the housing (1).

6. A worm gear reducer with adjustable gear clearance as claimed in claim 2, characterized in that: The surface of the threaded rod (305) is threadedly connected to a threaded barrel (6), and the surface of the threaded barrel (6) is connected to the surface of the outer shell (1).

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