Worm and gear anti-wear speed reducer and method thereof

Abstract

The application discloses a worm gear anti-abrasion speed reducer and a method thereof, which comprises an outer box, a worm, a driving shaft, a connecting rod and a worm gear disc. The right end of the worm is rotatably arranged in the middle part of the right end of the inner cavity of the outer box through a bearing. The right end of the driving shaft is locked at the left end of the worm through a shaft coupling, and the left end of the driving shaft extends out of the inner cavity of the outer box. The front and back ends of the connecting rod are rotatably arranged at the right ends of the front and back sides of the inner cavity of the outer box through bearings. The worm gear disc is sleeved with the outer wall of the connecting rod and is locked. A plurality of rolling grooves are equidistantly arranged on the outer wall of the worm gear disc in the circumferential direction. The application can effectively reduce the friction between the worm gear disc and the worm, so that the worm gear disc can be prevented from being abraded, the service life is increased, the heat generated during the working of the device is reduced due to the reduced friction, the oil thinning rate is reduced, the probability of oil leakage is reduced, and the application is convenient.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, specifically to a worm gear anti-wear speed reducer and its method. Background Technology

[0002] A worm gear reducer is a power transmission mechanism that uses a gear speed converter to reduce the rotational speed of a motor to a desired speed while obtaining a larger torque. Reducers have a wide range of applications in mechanisms for transmitting power and motion, and can be found in the transmission systems of various machines. From transportation vehicles such as ships, automobiles, and locomotives, to heavy construction machinery, processing tools and automated production equipment in the machinery industry, to everyday household appliances and clocks, their applications range from high-power transmission to low-load, precise angle transmission. In industrial applications, they provide both speed reduction and torque amplification. Therefore, they are widely used in speed and torque conversion equipment.

[0003] When a worm gear reducer is in use, the transmission method between the worm wheel and the worm is sliding friction, which generates a lot of heat during operation. As the oil thins due to the increased temperature, it is easy to cause oil leakage. Furthermore, during normal operation, the worm acts like a hardened "file", constantly filing the worm wheel, causing wear on the worm wheel, reducing its service life, and making it inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as the tendency for oil leakage due to temperature rise and the short service life, and to propose a worm gear anti-wear reducer and its method.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A worm gear anti-wear reducer and its method include: an outer casing; a worm, the right end of which is rotatably disposed at the middle of the upper right side of the inner cavity of the outer casing via a bearing; a drive shaft, the right end of which is locked to the left end of the worm via a coupling, the left end of which extends out of the inner cavity of the outer casing; a connecting rod, the front and rear ends of which are rotatably disposed at the right ends of the front and rear sides of the inner cavity of the outer casing via bearings; a worm gear disc, which is sleeved on the middle of the outer wall of the connecting rod and locked, the outer wall of the worm gear disc having a plurality of rolling grooves equidistantly formed along the circumference; a ball, a portion of which is capable of rolling and is adapted to the inner cavity of the rolling groove, the ball meshing with the worm; and two first helical gears, the two first helical gears being sleeved on the front and rear sides of the outer wall of the connecting rod respectively and locked by set screws.

[0007] Furthermore, rotating the connecting rod can drive the output shaft to rotate. The inner cavity of the outer casing also contains: an output shaft, the rear end of which is rotatably mounted on the rear left side of the inner cavity of the outer casing via a bearing, and the front end of which extends out of the front side of the outer casing; and two second helical gears, which are respectively sleeved on the front and rear sides of the outer wall of the output shaft and locked by a set screw. The first and second helical gears mesh with each other.

[0008] Furthermore, in order to remove debris from the outer wall of the worm gear, the outer wall of the output shaft is also provided with: a cleaning disc, which is rotatably sleeved on the middle of the outer wall of the output shaft via a bearing, and the cleaning disc and the worm gear disc are positioned correspondingly; and bristles, which are a plurality of bristles, which are respectively arranged equidistantly along the circumference on the outer wall of the cleaning disc.

[0009] Furthermore, in order to fix the cleaning disc, the outer wall of the output shaft is also provided with a connecting piece. There are two connecting pieces. The left and right ends of the two connecting pieces are rotatably sleeved on the front and rear sides of the connecting rod and the output shaft respectively through bearings. The inner left ends of the two connecting pieces are detachably set on the front and rear sides of the cleaning disc respectively.

[0010] Furthermore, the length of the ball embedded in the inner cavity of the rolling groove is greater than the radius of the ball.

[0011] Furthermore, there is a gap between the cleaning disc and the ball, and the bristles, the ball, and the worm gear disc are in contact.

[0012] Furthermore, there is a gap between the worm gear disc and the connecting piece.

[0013] A worm gear anti-wear reducer and its method, specifically including the following steps:

[0014] 1) In use, connect the left end of the drive shaft to the output end of the external motor. The external motor drives the worm to rotate through the drive shaft. Since the worm and the ball mesh, the rotation of the worm can drive the worm wheel to rotate through the ball. Since the rotation of the worm wheel is driven by the meshing of the ball and the worm instead of the traditional worm and worm wheel transmission, the friction rolling transmission replaces the traditional sliding friction transmission. This not only reduces the wear of the worm wheel, but also reduces the heat generated by the device during operation due to the reduced friction between the worm and the ball. This reduces the thinning rate of the oil and the chance of oil leakage.

[0015] 2) The worm gear can rotate by driving the first helical gear through the connecting rod, and the first helical gear can drive the output shaft to rotate through the second helical gear. The cleaning disc can be fixed by the connecting piece to prevent the cleaning disc from rotating with the output shaft. The brush bristles can clean the rolling ball and worm gear, preventing the metal debris generated during the operation of this device from causing wear on the worm gear and rolling ball.

[0016] 3) This invention can effectively reduce the friction between the worm gear disc and the worm, thereby preventing wear of the worm gear disc, increasing its service life, and reducing the heat generated during operation of the device due to reduced friction, thereby reducing the oil thinning rate and the probability of oil leakage, making it easier to use.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] (1) In this invention, the worm drives the worm wheel to rotate through the rolling ball, and the worm wheel can drive the first helical gear to rotate through the connecting rod. Finally, the first helical gear drives the output shaft to rotate through the second helical gear. This device changes the sliding friction transmission of the worm wheel to friction rolling transmission, reducing the friction between the worm and the worm wheel. This not only prevents the worm wheel from wearing, but also reduces the heat generated when the device is working normally.

[0019] (2) The present invention fixes the cleaning disc by connecting piece, thereby preventing the cleaning disc from rotating with the output shaft. The brush bristles can clean the rolling ball and worm gear disc, preventing the debris generated during the operation of the device from wearing the rolling ball and worm gear disc.

[0020] (3) The present invention can effectively reduce the friction between the worm wheel and the worm, thereby preventing the worm wheel from wearing and increasing its service life. Furthermore, due to the reduction in friction, the heat generated during the operation of the device can be reduced, thereby reducing the rate of oil thinning and thus reducing the probability of oil leakage, making it easier to use. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is an exploded view of the present invention;

[0024] Figure 3 This is a schematic diagram of the worm gear disk structure;

[0025] Figure 4 This is an enlarged view of point A in the present invention.

[0026] The components represented by each number in the diagram are listed below: 1. Outer casing, 2. Worm gear, 3. Drive shaft, 4. Connecting rod, 5. Worm gear disc, 6. Rolling groove, 7. Rolling ball, 8. First helical gear, 9. Output shaft, 10. Second helical gear, 11. Cleaning disc, 12. Brush bristles, 13. Connecting plate. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0029] Reference Figure 1-4A worm gear anti-wear reducer and its method are disclosed, comprising: an outer housing 1, a worm 2, a drive shaft 3, a connecting rod 4, a worm wheel disc 5, rolling grooves 6, rolling balls 7, a first helical gear 8, an output shaft 9, and a second helical gear 10. The right end of the worm 2 is rotatably disposed at the middle of the upper right side of the inner cavity of the outer housing 1 via a bearing. The right end of the drive shaft 3 is locked to the left end of the worm 2 via a coupling. The left end of the drive shaft 3 extends out of the inner cavity of the outer housing 1. The front and rear ends of the connecting rod 4 are rotatably disposed at the right ends of the front and rear sides of the inner cavity of the outer housing 1 via bearings, respectively. The worm wheel disc 5 is sleeved on the middle of the outer wall of the connecting rod 4 and locked. The outer wall of the worm wheel disc 5 is provided with a plurality of rolling grooves 6 at equal intervals along the circumference. A portion of the rolling balls 7 can roll and adapt to the inner cavity of the rolling groove. The inner cavity of the 6 is in contact with the ball 7 and the worm gear 2. The cooperation between the ball 7 and the worm gear 2 can cause the worm wheel 5 to rotate. The length of the ball 7 embedded in the inner cavity of the rolling groove 6 is greater than the radius of the ball 7, which can prevent the ball 7 from leaving the inner cavity of the rolling groove 6. There are two first helical gears 8. The two first helical gears 8 are respectively sleeved on the front and rear sides of the outer wall of the connecting rod 4 and locked by set screws. The rear end of the output shaft 9 is rotatably set on the rear left end of the inner cavity of the outer box 1 through a bearing. The front end of the output shaft 9 extends out of the front side of the outer box 1. There are two second helical gears 10. The two second helical gears 10 are respectively sleeved on the front and rear sides of the outer wall of the output shaft 9 and locked by set screws. The first helical gears 8 and the second helical gears 10 are in contact with each other.

[0030] Specifically, the outer wall of the output shaft 9 is also provided with: a cleaning disc 11, brush bristles 12, and a connecting piece 13. The cleaning disc 11 is rotatably sleeved on the middle of the outer wall of the output shaft 9 via bearings. The cleaning disc 11 and the worm gear disc 5 are positioned correspondingly. There are several brush bristles 12, which are equidistantly arranged on the outer wall of the cleaning disc 11 along the circumference. The brush bristles 12 can be used to clean the worm gear disc 5 and the rolling ball 7. There is a gap between the cleaning disc 11 and the rolling ball 7, and the brush bristles 12 and the rolling ball 7 are also connected to the worm gear disc 5. The brush bristles 12 are in contact with each other to ensure that the worm gear disk 5 and the ball 7 can be cleaned. There are two connecting pieces 13. The left and right ends of the two connecting pieces 13 are rotatably sleeved on the front and rear sides of the connecting rod 4 and the output shaft 9 through bearings. The inner left ends of the two connecting pieces 13 are detachably set on the front and rear sides of the cleaning disc 11. The cleaning disc 11 can be fixed by the connecting pieces 13. There is a gap between the worm gear disk 5 and the connecting pieces 13 to prevent the connecting pieces 13 from obstructing the rotation of the worm gear disk 5.

[0031] A worm gear anti-wear reducer and its method, specifically including the following steps:

[0032] 1) In use, connect the left end of the drive shaft 3 to the output end of the external motor. The external motor drives the worm 2 to rotate through the drive shaft 3. Since the worm 2 and the ball 7 mesh, the rotation of the worm 2 can drive the worm wheel disk 5 to rotate through the ball 7. Since the rotation of the worm wheel disk 5 is driven by the meshing of the ball 7 and the worm 2 instead of the traditional worm and worm wheel transmission, the friction rolling transmission replaces the traditional sliding friction transmission. This not only reduces the wear of the worm wheel disk 5, but also reduces the heat generated by the device during operation due to the reduced friction between the worm 2 and the ball 7. This reduces the thinning rate of the oil and the probability of oil leakage.

[0033] 2) The rotation of the worm gear disk 5 can drive the first helical gear 8 to rotate through the connecting rod 4. The first helical gear 8 can then drive the output shaft 9 to rotate through the second helical gear 10. The cleaning disc 11 can be fixed by the connecting piece 13 to prevent it from rotating with the output shaft 9. The brush bristles 12 can then clean the ball 7 and the worm gear disk 5 to prevent metal debris generated during the operation of this device from causing wear on the worm gear disk 5 and the ball 7.

[0034] 3) The present invention can effectively reduce the friction between the worm gear disk 5 and the worm 2, thereby preventing the worm gear disk 5 from wearing and increasing its service life. Furthermore, due to the reduction in friction, the heat generated during the operation of the device can be reduced, thereby reducing the oil thinning rate and the probability of oil leakage, making it easier to use.

[0035] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A worm gear anti-wear reducer, characterized in that, include: outer box(1); The right end of the worm (2) is rotatably disposed at the middle of the top right side of the inner cavity of the outer casing (1) via a bearing; Drive shaft (3), the right end of which is locked to the left end of worm gear (2) by a coupling, and the left end of the drive shaft (3) extends out of the inner cavity of the outer box (1); The connecting rod (4) is rotatably mounted on the right side of the front and rear sides of the inner cavity of the outer box (1) via bearings at its front and rear ends respectively. The worm gear disk (5) is sleeved on the middle of the outer wall of the connecting rod (4) and locked. The outer wall of the worm gear disk (5) is provided with several rolling grooves (6) at equal intervals along the circumference. A ball (7), a portion of which is capable of rolling and is adapted to the inner cavity of the rolling groove (6), the ball (7) meshing with the worm (2); The first helical gear (8) has two parts. The two first helical gears (8) are respectively sleeved on the front and rear sides of the outer wall of the connecting rod (4) and locked by set screws. The inner cavity of the outer casing (1) is also provided with: Output shaft (9), the rear end of the output shaft (9) is rotatably disposed on the rear left end of the inner cavity of the outer box (1) via a bearing, and the front end of the output shaft (9) extends out of the front side of the outer box (1). The second helical gear (10) has two components. The two second helical gears (10) are respectively sleeved on the front and rear sides of the outer wall of the output shaft (9) and locked by set screws. The first helical gear (8) and the second helical gear (10) mesh with each other. The outer wall of the output shaft (9) is also provided with: Cleaning disc (11) is rotatably sleeved on the middle of the outer wall of the output shaft (9) via a bearing, and the cleaning disc (11) and the worm gear disc (5) are positioned opposite each other; The number of brush bristles (12) is several, and the several brush bristles (12) are respectively arranged at equal intervals along the circumference on the outer wall of the cleaning disc (11); The outer wall of the output shaft (9) is also provided with: The connecting piece (13) has two parts. The left and right ends of the two connecting pieces (13) are rotatably sleeved on the front and rear sides of the connecting rod (4) and the output shaft (9) respectively through bearings. The inner left ends of the two connecting pieces (13) are detachably set on the front and rear sides of the cleaning disc (11).

2. The worm gear anti-wear reducer according to claim 1, characterized in that: The length of the ball (7) embedded in the inner cavity of the rolling groove (6) is greater than the radius of the ball (7).

3. The worm gear anti-wear reducer according to claim 2, characterized in that: There is a gap between the cleaning disc (11) and the ball (7), and the bristles (12) and the ball (7) are in contact with the worm gear disc (5).

4. The worm gear anti-wear reducer according to claim 3, characterized in that: There is a gap between the worm gear disk (5) and the connecting piece (13).

5. The method of using the worm gear anti-wear reducer according to claim 4, characterized in that: Specifically, the following steps are included: In use, the left end of the drive shaft (3) is connected to the output end of the external motor. The external motor drives the worm (2) to rotate through the drive shaft (3). Since the worm (2) and the ball (7) mesh, the rotation of the worm (2) drives the worm wheel disk (5) to rotate through the ball (7). Since the rotation of the worm wheel disk (5) is driven by the meshing of the ball (7) and the worm (2) instead of the traditional worm and worm wheel transmission, the friction rolling transmission replaces the traditional sliding friction transmission. This not only reduces the wear of the worm wheel disk (5), but also reduces the heat generated when the device is working due to the reduced friction between the worm (2) and the ball (7), thereby reducing the thinning rate of the oil and reducing the probability of oil leakage. The worm gear disk (5) rotates and drives the first helical gear (8) to rotate via the connecting rod (4). The first helical gear (8) drives the output shaft (9) to rotate via the second helical gear (10). The cleaning disc (11) is fixed by the connecting piece (13) to prevent the cleaning disc 11 from rotating with the output shaft (9). The brush bristles (12) clean the ball (7) and the worm gear disk (5) to prevent the metal debris generated during the operation of this device from causing wear on the worm gear disk (5) and the ball (7).

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