Worm and gear speed reducer

Abstract

The utility model discloses a worm and gear speed reducer, which relates to the technical field of worm and gear speed reducers, and comprises a box body, a worm gear body arranged in the box body, a precipitation tank arranged in a rotating ring and matched with a first collecting tank for use, an oil pump arranged in the first collecting tank, and a scraping port arranged at the bottom of the rotating ring and matched with an external thread for use. A second output rod is arranged at one end of the worm body. Through continuous rotation of the first output rod, the external thread continuously moves in the rotating ring, so that the problems that friction between a worm and a turbine is increased due to abrasion of the worm bearing, a large amount of heat is generated, the oil temperature is increased, the sealing effect of a sealing piece is reduced, oil leakage is caused, and the lubricating effect is reduced once oil leakage occurs can be solved. The technical problems that friction of mechanical equipment is increased, gear abrasion and bearing defects are caused, the service life of the speed reducer is shortened, and the production effect is affected in the prior art are solved, and the practicability and the working efficiency of the whole worm and gear speed reducer are improved.

Description

Technical Field

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

[0002] A worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the number of revolutions of the motor to the desired number of revolutions and obtain a larger torque. The motor transmits power to the worm through the shaft, and the worm and the worm wheel rotate and transmit power through meshing. When the motor drives the worm to rotate, the rotation of the worm will cause the rotation of the worm wheel. The rotation of the worm wheel will change the speed of the worm, reducing the speed of the worm, thereby achieving a deceleration effect. The meshing ratio of the worm and the worm wheel determines the degree of deceleration, and the number of teeth on the worm wheel and the number of helical lines of the worm determine the transmission ratio. In addition, the worm gear reducer can either allow the worm wheel to drive the worm to rotate to decelerate, or allow the worm to drive the worm wheel to increase speed, and has a unidirectional transmission performance.

[0003] The worm gear reducer adopts the meshing design of worm and worm wheel, which makes the overall structure relatively simple and easy to install and maintain. Due to the transmission principle of the worm gear reducer, its transmission efficiency is high and efficient power transmission can be achieved. The worm gear reducer can withstand large loads and is suitable for various heavy-load working occasions.

[0004] However, the wear of the worm bearing will increase the friction between the worm and the turbine, generate a lot of heat, increase the oil temperature, dilute the oil, thereby reducing the sealing effect of the seal and causing oil leakage. Once the oil leaks, the lubrication effect will be reduced, which will increase the friction of the mechanical equipment and cause gear wear and bearing defects, which will not only shorten the service life of the reducer, but also affect the production effect. Utility Model Content

[0005] Based on this, the purpose of the utility model is to provide a worm gear reducer to solve the technical problem that the wear of the worm bearing will lead to increased friction between the worm and the turbine, generate a large amount of heat, increase the oil temperature, dilute the oil, thereby reducing the sealing effect of the seal and causing oil leakage. Once the oil leaks, the lubrication effect is reduced, which will increase the friction of the mechanical equipment and cause gear wear and bearing defects, which will not only shorten the service life of the reducer but also affect the production effect.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a worm gear reducer, comprising a casing, a worm wheel body is arranged in the casing, a top cover is arranged on the top of the casing, a worm body is arranged in the top cover, the worm wheel body is meshed with the worm body, a first output rod is arranged at one end of the worm body, an external thread is arranged on the outer side of the first output rod, a rotating ring for matching the external thread is arranged on the outer side of the first output rod, the rotating ring is rotatably connected to the top cover, an internal thread for matching the external thread is provided in the rotating ring, a first collecting groove is fixedly connected to the bottom of the rotating ring, a sedimentation groove for matching the first collecting groove is provided in the rotating ring, an oil pump is provided in the first collecting groove, a scraping mouth for matching the external thread is provided at the bottom of the rotating ring, and a second output rod is arranged at one end of the worm wheel body.

[0007] By adopting the above technical scheme, when in use, the external thread is continuously moved in the rotating ring through the continuous rotation of the first output rod, and the lubricating oil can be scraped and collected through the mutual cooperation between the scraper mouth and the external thread, so that the leaked lubricating oil enters the sedimentation tank and then is pumped into the first collecting tank by the oil pump. An opening is provided at one end of the first collecting tank, so that the lubricating oil can be re-attached to the worm gear while the worm gear rotates, thereby achieving the lubrication effect. This structure can solve the problem that the wear of the worm bearing will lead to increased friction between the worm and the turbine, generate a large amount of heat, increase the oil temperature, and dilute the oil, thereby reducing the sealing effect of the seal and causing oil leakage. Once the oil leaks, the lubrication effect is reduced, which will increase the friction of the mechanical equipment, cause gear wear and bearing defects, and not only shorten the service life of the reducer, but also affect the technical problem of production effect, so that the practical working efficiency of the entire worm gear reducer is improved.

[0008] The utility model is further configured such that first bearings are rotatably connected at both ends of the worm body, second bearings are rotatably connected at both ends of the worm wheel body, and oil seals are provided between the first bearing and the first output rod and between the second bearing and the second output rod.

[0009] By adopting the above technical solution, the mutual cooperation between the first bearing and the second bearing can reduce the friction between the worm gear and enable the worm gear to rotate flexibly. Secondly, a certain sealing performance can be maintained through the oil seal to avoid leakage of lubricating oil.

[0010] The utility model is further configured that a movable groove used to cooperate with the worm wheel body and the second bearing is opened in the box body, and a second collecting groove is opened at the bottom of the box body.

[0011] By adopting the above technical solution, the movable groove can enable the worm wheel to flexibly rotate in the box body, and the oil left on the worm wheel can be collected and processed uniformly through the second collecting groove.

[0012] The utility model is further configured such that a pipeline is fixedly connected between the second collecting tank and the first collecting tank.

[0013] By adopting the above technical solution, the provided pipeline can allow excess oil to return to the first collecting tank through the pipeline and then be used in conjunction with the worm gear.

[0014] The utility model is further configured that an oil inlet pipe is arranged on the top of the top cover, a mounting seat is fixedly mounted on one side of the top cover, and the first output rod movably passes through the mounting seat.

[0015] By adopting the above technical solution, the oil inlet pipe can enable the worm gear to be flexibly transmitted, and the motor and the worm gear can be connected and fixed through the mounting seat.

[0016] In summary, the utility model mainly has the following beneficial effects:

[0017] 1. The utility model continuously rotates the first output rod to make the external thread continuously move in the rotating ring. The scraper mouth and the external thread cooperate with each other to scrape and collect the lubricating oil, so that the leaked lubricating oil enters the sedimentation tank and then is pumped into the first collecting tank by the oil pump. An opening is provided at one end of the first collecting tank, so that the lubricating oil can be reattached to the worm gear while the worm gear is rotating, thereby achieving the lubrication effect. This structure can solve the problem that the wear of the worm bearing will increase the friction between the worm and the turbine, generate a lot of heat, increase the oil temperature, dilute the oil, thereby reducing the sealing effect of the seal and causing oil leakage. Once the oil leaks, the lubrication effect is reduced, which will increase the friction of the mechanical equipment, cause gear wear and bearing defects, and not only shorten the service life of the reducer, but also affect the technical problem of production effect, so that the practicality and work efficiency of the entire worm gear reducer are improved;

[0018] 2. The utility model can make the worm wheel rotate flexibly in the box body through the movable groove, and the oil left on the worm wheel can be collected and processed uniformly through the second collecting groove. The set pipeline can make the excess oil return to the first collecting groove through the pipeline and then be used in conjunction with the worm wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the first perspective of the partial structural disassembly effect of the utility model;

[0021] Figure 3 It is a schematic diagram of the second viewing angle of the partial structural disassembly effect of the utility model;

[0022] Figure 4 It is a schematic diagram of the main structural section effect of the utility model;

[0023] Figure 5 For the utility model Figure 3 Schematic diagram of the magnified effect of A in the middle;

[0024] Figure 6 For the utility model Figure 5 Schematic diagram of the magnified effect of B.

[0025] In the figure: 1. box body; 2. top cover; 3. mounting seat; 4. oil inlet pipe; 5. rotating ring; 6. first output rod; 7. external thread; 8. worm body; 9. first bearing; 10. second output rod; 11. second bearing; 12. worm body; 13. second collecting tank; 14. pipeline; 15. oil pump; 16. first collecting tank; 17. internal thread; 18. scraper; 19. sedimentation tank. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.

[0027] The following describes an embodiment of the utility model based on its overall structure.

[0028] A worm gear reducer, such as Figure 1-6 As shown, it includes a box body 1, a worm wheel body 12 is arranged in the box body 1, a top cover 2 is arranged on the top of the box body 1, a worm body 8 is arranged in the top cover 2, the worm wheel body 12 is meshed with the worm body 8, a first output rod 6 is arranged at one end of the worm body 8, an external thread 7 is arranged on the outer side of the first output rod 6, a rotating ring 5 used in conjunction with the external thread 7 is arranged on the outer side of the first output rod 6, the rotating ring 5 is rotatably connected to the top cover 2, an internal thread 17 used in conjunction with the external thread 7 is opened in the rotating ring 5, a first collecting groove 16 is fixedly connected to the bottom of the rotating ring 5, a sedimentation groove 19 used in conjunction with the first collecting groove 16 is opened in the rotating ring 5, an oil pump 15 is arranged in the first collecting groove 16, a scraping mouth 18 used in conjunction with the external thread 7 is opened at the bottom of the rotating ring 5, and a second output rod 10 is arranged at one end of the worm wheel body 12.

[0029] During use, the external thread 7 is continuously moved in the rotating ring 5 by the continuous rotation of the first output rod 6, and the lubricating oil can be scraped and collected by the mutual cooperation between the scraper 18 and the external thread 7, so that the leaked lubricating oil enters the sedimentation tank 19 and then is pumped into the first collecting tank 16 by the oil pump 15. An opening is provided at one end of the first collecting tank 16, so that the lubricating oil can be reattached to the worm body 12 while the worm body 12 rotates, thereby achieving the lubrication effect. This structure can solve the problem that the wear of the worm bearing will lead to increased friction between the worm and the turbine, generate a large amount of heat, increase the oil temperature, and dilute the oil, thereby reducing the sealing effect of the seal and causing oil leakage. Once the oil leaks, the lubrication effect is reduced, which will increase the friction of the mechanical equipment, cause gear wear and bearing defects, and will not only shorten the service life of the reducer, but also affect the technical problem of production effect, so that the practical working efficiency of the entire worm gear reducer is improved.

[0030] The mutual cooperation between the further arranged first bearing 9 and the second bearing 11 can reduce the friction between the worm wheel body 12 and the worm body 8, so that the worm wheel body 12 and the worm body 8 can flexibly rotate. Secondly, the oil seal can maintain a certain sealing performance to avoid leakage of lubricating oil, and the arranged movable groove can enable the worm wheel body 12 to flexibly rotate in the housing 1, and the oil left on the worm wheel body 12 can be collected and uniformly processed through the second collecting groove 13. Secondly, the arranged pipeline 14 can allow excess oil to return to the first collecting groove 16 through the pipeline 14, and then be used in conjunction with the worm wheel body 12. Finally, the arranged oil inlet pipe 4 can enable the worm wheel body 12 and the worm body 8 to be flexibly transmitted, and through the mounting seat 3, the motor and the worm body 8 can be connected and fixed.

[0031] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.

Claims

1. A worm gear reducer, comprising a housing (1), characterized in that: A worm wheel body (12) is arranged in the box body (1), a top cover (2) is arranged on the top of the box body (1), a worm body (8) is arranged in the top cover (2), the worm wheel body (12) is meshed with the worm body (8), a first output rod (6) is arranged at one end of the worm body (8), an external thread (7) is arranged on the outside of the first output rod (6), a rotating ring (5) used in conjunction with the external thread (7) is arranged on the outside of the first output rod (6), and the rotating ring (5) is rotated with the top cover (2). The rotating ring (5) is dynamically connected, an internal thread (17) is provided in the rotating ring (5) and is used in conjunction with the external thread (7), a first collecting groove (16) is fixedly connected to the bottom of the rotating ring (5), a sedimentation groove (19) is provided in the rotating ring (5) and is used in conjunction with the first collecting groove (16), an oil pump (15) is arranged in the first collecting groove (16), a scraper (18) is provided in the bottom of the rotating ring (5) and is used in conjunction with the external thread (7), and a second output rod (10) is arranged at one end of the worm wheel body (12).

2. The worm gear reducer according to claim 1, characterized in that: The two ends of the worm body (8) are rotatably connected to a first bearing (9), the two ends of the worm wheel body (12) are rotatably connected to a second bearing (11), and oil seals are provided between the first bearing (9) and the first output rod (6) and between the second bearing (11) and the second output rod (10).

3. The worm gear reducer according to claim 2, characterized in that: The box body (1) is provided with a movable groove for use with the worm wheel body (12) and the second bearing (11), and the bottom of the box body (1) is provided with a second collecting groove (13).

4. The worm gear reducer according to claim 3, characterized in that: A pipeline (14) is fixedly connected between the second collecting tank (13) and the first collecting tank (16).

5. The worm gear reducer according to claim 1, characterized in that: An oil inlet pipe (4) is arranged on the top of the top cover (2), a mounting seat (3) is fixedly mounted on one side of the top cover (2), and the first output rod (6) movably passes through the mounting seat (3).

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