High-torque worm gear reducer

Abstract

The utility model discloses a high-torque worm gear reducer, and relates to the technical field of worm gear reducers. Comprising a first shell and a second shell, and the second shell is arranged on one side of the first shell. By arranging a threaded rod, a hexagon nut, a protective shell, an L-shaped rod, a movable plate, a rotating seat and a reset spring, after the device is fixed, the L-shaped rod is pulled towards the side away from the fixed plate, the protective shell and the movable plate move along with the L-shaped rod, the reset spring deforms, and when the bottom of the protective shell is higher than the top of the hexagon nut, the L-shaped rod is rotated and drives the movable plate to rotate, so that the device is protected. The rotating seat rotates in the fixing plate until the protective shell is located over the hexagonal nut, the L-shaped rod is loosened, the movable plate drives the L-shaped rod and the protective shell to move under the elastic force effect of the reset spring, then the hexagonal nut is inserted into a hexagonal groove of the protective shell, and the purpose of limiting the hexagonal nut is achieved. And the stability and reliability of the speed reducer are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gear reducers, in particular to a high-torque worm gear reducer. Background Art

[0002] A high-torque worm gear reducer is a mechanical device used to reduce speed and increase torque. The worm is a cylindrical structure with a helical projection, while the worm wheel is a gear with a disc-like shape, whose tooth grooves are surrounded by the worm's helical projections. As the worm rotates, the helical projections create a friction transmission surface with the worm wheel's tooth grooves, driving the worm wheel to rotate, thereby reducing speed.

[0003] Chinese utility model patent CN218326028U discloses a high-torque worm gear reducer, comprising a first housing, a second housing disposed at the right end of the first housing, a work box disposed at the upper portion of the left end of the first housing, an input shaft disposed at the left end of the work box, the input shaft passing through the work box and located within the work box, a first gear disposed at the right end of the input shaft, a second gear disposed at the upper end of the first gear, a worm disposed at the right end of the second gear, bearings disposed within both the first and second housings, a common output shaft disposed within the two bearings, and a worm wheel disposed on the output shaft. The utility model achieves high-torque output through structures such as the output shaft, worm, worm wheel, first gear, second gear, and input shaft. The first and second housings are connected and separated through structures such as a fixing ring, a limit groove, a limit ring, bolts, and screw holes, making installation and maintenance more convenient.

[0004] In order to fix the entire device, the above-mentioned high-torque worm gear reducer is provided with a fixing plate and a fixing bolt. However, the above-mentioned high-torque worm gear reducer does not have the function of limiting the fixing bolt. The lack of limiting function may cause the fixing bolt to be displaced or loosened during the force process. The loose fixing bolt will not be able to provide sufficient fixing force, causing the reducer to vibrate or make noise during operation, and may even cause a safety accident. Utility Model Content

[0005] The utility model provides a high-torque worm gear reducer to solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-torque worm gear reducer, comprising a first housing and a second housing, a second housing is provided on one side of the first housing, a working box is provided on the upper part of the first housing away from the second housing, a through hole is opened on one side of the working box, and an input shaft is movably provided in the through hole, a first gear is provided at one end of the input shaft, a second gear is movably provided on the top of the first gear, the second gear and the first gear are connected in a meshing relationship, a worm is provided on one side of the second gear, a worm wheel is provided at the bottom of the worm, an output shaft is provided on the inner wall of the worm wheel, and the bottoms of the first housing and the second housing are provided. The cam is fixed with a support rod, and one end of the support rod is fixed with a fixing plate, and a threaded hole is provided on the side away from the fixing plate, and a threaded rod is movably provided in the threaded hole, and a hexagonal nut is fixed on the top of the threaded rod, and a protective shell is movably provided on the outside of the hexagonal nut, and the connection relationship between the protective shell and the hexagonal nut is movably plugged in. An L-shaped rod is fixed on one side of the protective shell, and a movable plate is fixed on one end of the L-shaped rod, and a rotating seat is movably provided on the outside of the movable plate, and the connection relationship between the rotating seat and the movable plate is a sliding connection, and a reset spring is fixed on the side of the movable plate close to the L-shaped rod, and the connection relationship between the reset spring and the L-shaped rod is sleeved.

[0007] Furthermore, the protective shell is made of cast iron.

[0008] Furthermore, a hexagonal groove adapted to the hexagonal nut is provided at the bottom of the protective shell.

[0009] Furthermore, the connection relationship between the rotating seat and the fixed plate is a rotating connection.

[0010] Furthermore, ventilation holes are provided on opposite sides of the first shell and the second shell.

[0011] Furthermore, bearings are provided inside the first shell and the second shell.

[0012] Compared with the prior art, the present invention provides a high-torque worm gear reducer with the following beneficial effects:

[0013] When the cam is in a state of being moved, the L-shaped rod is pulled away from the fixing plate, and the fixing plate and the fixing plate are moved accordingly. When the fixing plate is in a state of being moved, the fixing plate and the fixing plate are moved accordingly. When the fixing plate is in a state of being moved, the fixing plate and the fixing plate are moved accordingly. When the fixing plate is in a state of being moved, the fixing plate and the fixing plate are moved accordingly. When the fixing plate is in a state of being moved, the fixing plate and the fixing plate are moved accordingly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a front view of the structure of the utility model;

[0016] Figure 3 This is a structural cross-sectional view of the fixing plate of the present invention.

[0017] In the figure: 101, first housing; 102, second housing; 201, working box; 202, input shaft; 203, first gear; 204, second gear; 205, worm; 206, worm wheel; 207, output shaft; 301, support rod; 302, fixing plate; 303, threaded rod; 304, hexagonal nut; 305, protective shell; 306, L-shaped rod; 307, moving plate; 308, rotating seat; 309, return spring; 401, ventilation hole; 402, bearing. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0019] See also Figure 1-3The utility model discloses a high-torque worm gear reducer, including a first housing 101 and a second housing 102, wherein the second housing 102 is provided on one side of the first housing 101, and a working box 201 is provided on the upper part of the first housing 101 away from the second housing 102. A through hole is opened on one side of the working box 201, and an input shaft 202 is movably provided in the through hole, and a first gear 203 is provided at one end of the input shaft 202, and a second gear 204 is movably provided on the top of the first gear 203, and the second gear 204 is connected to the first gear 203 in a meshing connection, and a worm 205 is provided on one side of the second gear 204, and a worm wheel 206 is provided at the bottom of the worm 205, and an output shaft 207 is provided on the inner wall of the worm wheel 206, and a support is fixedly provided on the bottom of the first housing 101 and the second housing 102. The cam 308 is a vertical cam 309 that is fixed to the top of the cam 308 and the horizontal cam 309 is a horizontal cam 309 that is fixed to the top of the cam 308.

[0020] Specifically, the protective shell 305 is made of cast iron.

[0021] In this embodiment, the protective shell 305 provides cast iron with high strength and rigidity, enabling it to effectively withstand the various loads generated during the operation of the reducer. This means that the protective shell 305 can firmly secure the hexagonal nut 304, preventing it from loosening or falling off due to stress.

[0022] Specifically, a hexagonal groove adapted to the hexagonal nut 304 is formed at the bottom of the protective shell 305 .

[0023] In this embodiment, by setting the hexagonal nut 304 and the protective shell 305, the shape of the hexagonal groove is completely consistent with the hexagonal nut 304, so that the protective shell 305 can be quickly and accurately positioned on the hexagonal nut 304 during installation, ensuring a tight fit between the protective shell 305 and the hexagonal nut 304, which not only prevents the nut from loosening, but also improves the stability of the entire fixed structure.

[0024] Specifically, the connection relationship between the rotating seat 308 and the fixed plate 302 is a rotating connection.

[0025] In this embodiment, by setting a fixed plate 302 and a rotating seat 308, the movable plate 307 is square. When the movable plate 307 rotates with the rotation of the L-shaped rod 306, the rotating seat 308 rotates inside the fixed plate 302 to facilitate adjustment of the angle of the protective shell 305.

[0026] Specifically, ventilation holes 401 are formed on opposite sides of the first shell 101 and the second shell 102 .

[0027] In this embodiment, the vent holes 401 are provided to allow air to freely flow in and out of the reducer housing, thereby effectively promoting the dissipation of internal heat. This helps to reduce the temperature generated by the reducer during operation and prevent overheating.

[0028] Specifically, bearings 402 are disposed inside the first shell 101 and the second shell 102 .

[0029] In this embodiment, by setting bearing 402, bearing 402 is the contact surface between the output shaft 207 and the housing. The setting of bearing 402 significantly improves the stability of the output shaft 207 and reduces the shaking caused by vibration or load changes, thereby ensuring the accuracy and reliability of the reducer transmission.

[0030] When in use, the device is moved to the place where work is required, and the hexagonal nut 304 is turned to make the threaded rod 303 rotate in the threaded hole, thereby fixing the fixed plate 302, and then the L-shaped rod 306 is pulled to the side away from the fixed plate 302, and the protective shell 305 and the movable plate 307 move accordingly, and the return spring 309 is deformed. When the bottom of the protective shell 305 is higher than the top of the hexagonal nut 304, the L-shaped rod 306 is turned, and the L-shaped rod 306 drives the movable plate 307 to rotate, and the rotating seat 308 therefore rotates in the fixed plate 302 until the protective shell 305 is located just above the hexagonal nut 304, and the L-shaped rod 306 is loosened. Under the elastic force of 9, the movable plate 307 drives the L-shaped rod 306 and the protective shell 305 to move, so that the hexagonal nut 304 is inserted into the hexagonal groove of the protective shell 305, thereby limiting the hexagonal nut 304 and further improving the stability of the device. When the motor is started, the motor drives the input shaft 202 to rotate, thereby driving the first gear 203 to rotate, and the second gear 204 rotates accordingly, and drives the worm 205 to rotate, and the worm 205 drives the worm wheel 206 to rotate, thereby driving the output shaft 207 to rotate, through the transmission deceleration of the first gear 203 and the second gear 204, and then through the transmission deceleration of the worm 205 and the worm wheel 206, thereby achieving high output torque.

[0031] In summary, the high-torque worm gear reducer is provided with a threaded rod 303, a hexagonal nut 304, a protective shell 305, an L-shaped rod 306, a movable plate 307, a rotating seat 308 and a return spring 309. After the device is fixed, the L-shaped rod 306 is pulled toward the side away from the fixed plate 302, and the protective shell 305 and the movable plate 307 move accordingly, and the return spring 309 is deformed. When the bottom of the protective shell 305 is higher than the top of the hexagonal nut 304, the L-shaped rod 306 is rotated. The L-shaped rod 306 drives the movable plate 307 to rotate, and the rotating seat 308 therefore rotates in the fixed plate 302 until the protective shell 305 is located directly above the hexagonal nut 304. The L-shaped rod 306 is loosened, and under the elastic force of the return spring 309, the movable plate 307 drives the L-shaped rod 306 and the protective shell 305 to move, thereby inserting the hexagonal nut 304 into the hexagonal groove of the protective shell 305, thereby achieving the purpose of limiting the hexagonal nut 304 and improving the stability and reliability of the reducer.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-torque worm gear reducer, comprising a first housing (101) and a second housing (102), characterized in that: A second housing (102) is provided on one side of the first housing (101), a working box (201) is provided on the upper part of the first housing (101) away from the second housing (102), a through hole is provided on one side of the working box (201), and an input shaft (202) is movably provided in the through hole, a first gear (203) is provided at one end of the input shaft (202), a second gear (204) is movably provided on the top of the first gear (203), the second gear (204) and the first gear (203) are connected in a meshing relationship, a worm (205) is provided on one side of the second gear (204), a worm wheel (206) is provided at the bottom of the worm (205), and an output shaft (207) is provided on the inner wall of the worm wheel (206), a support rod (301) is fixedly provided at the bottom of both the first housing (101) and the second housing (102), and one end of the support rod (301) is fixedly provided. A fixing plate (302) is provided, and a threaded hole is provided on one side of the fixing plate (302) away from the fixing plate (302), and a threaded rod (303) is movably provided in the threaded hole. A hexagonal nut (304) is fixedly provided on the top of the threaded rod (303), and a protective shell (305) is movably provided on the outside of the hexagonal nut (304). The connection relationship between the protective shell (305) and the hexagonal nut (304) is movably plugged. One side of the protective shell (305) is fixedly provided with An L-shaped rod (306) is fixedly provided with a movable plate (307) at one end of the L-shaped rod (306), a rotating seat (308) is movably provided on the outside of the movable plate (307), the connection relationship between the rotating seat (308) and the movable plate (307) is a sliding connection, and a return spring (309) is fixedly provided on the side of the movable plate (307) close to the L-shaped rod (306), and the connection relationship between the return spring (309) and the L-shaped rod (306) is a sleeve connection.

2. The high-torque worm gear reducer according to claim 1, characterized in that: The material of the protective shell (305) is cast iron.

3. The high-torque worm gear reducer according to claim 1, characterized in that: The bottom of the protective shell (305) is provided with a hexagonal groove adapted to the hexagonal nut (304).

4. The high-torque worm gear reducer according to claim 1, characterized in that: The connection relationship between the rotating seat (308) and the fixed plate (302) is a rotating connection.

5. The high-torque worm gear reducer according to claim 1, characterized in that: Ventilation holes (401) are provided on opposite sides of the first shell (101) and the second shell (102).

6. The high-torque worm gear reducer according to claim 1, characterized in that: Bearings (402) are provided inside the first shell (101) and the second shell (102).

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