Low-voltage large-torque speed reducer

Abstract

This invention discloses a low-voltage, high-torque reducer, relating to the field of reducer technology. The reducer includes a protective housing, with a bushing fixedly fitted inside the housing. An input shaft is rotatably fitted inside the bushing, and a bevel gear is fixedly connected to the left end of the input shaft. A rotating shaft is rotatably connected inside the protective housing, and a conical gear ring is fixedly fitted to the surface of the rotating shaft, meshing with the bevel gear. A lubrication box is fixedly connected to the bottom wall of the protective housing, and a sliding device is provided inside the lubrication box. In this low-voltage, high-torque reducer, the slider pushes lubricating oil to gradually slide forward to the top of the lubrication box and flows out from the nozzle, spraying it onto the surfaces of the pinion and bevel gear, lubricating the meshing parts of the pinion and bevel gear. Even when the output shaft speed is low, the meshing parts of the pinion and bevel gear can still be lubricated.

Description

Technical Field

[0001] This invention relates to the field of speed reducer technology, and more particularly to a low-voltage, high-torque speed reducer. Background Technology

[0002] A speed reducer plays a role in matching speeds and transmitting torque between a prime mover and a driven machine or actuator. A speed reducer is a relatively precise piece of machinery used to reduce speed and increase torque. Speed ​​reducers can be classified according to transmission type (gear reducers, worm gear reducers, planetary gear reducers); according to the number of transmission stages (single-stage reducers, multi-stage reducers); according to gear shape (cylindrical gear reducers, bevel gear reducers, bevel and cylindrical gear reducers); and according to the transmission arrangement (open type, split type, coaxial type). Coaxial speed reducers are used in mechanical transmissions in industries such as metallurgy, mining, transportation, energy, building materials, and light chemical engineering.

[0003] When the reducer is in use, the internal gear meshing connection position needs to be lubricated by lubricating oil. However, when the reducer output shaft speed is less than 3 rpm, the input shaft cannot receive splash lubrication. Even if the pumping unit is working normally, poor lubrication of the reducer input shaft will still affect the operation. Summary of the Invention

[0004] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide a low-voltage, high-torque reducer that can solve the problem that when the reducer output shaft speed is below 3 rpm, the input shaft cannot receive splash lubrication, and even if the oil pump is normal, poor lubrication of the reducer input shaft will still affect the operation.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a low-voltage, high-torque reducer, comprising a protective housing, a fixed base fixedly connected to the bottom of the protective housing, a bushing fixedly sleeved inside the protective housing, an input shaft rotatably sleeved inside the bushing, a bevel gear fixedly connected to the left end of the input shaft, a rotating shaft rotatably connected inside the protective housing, a conical gear ring fixedly sleeved on the surface of the rotating shaft, the conical gear ring meshing with the bevel gear, a small gear fixedly sleeved on the surface of the rotating shaft, an output shaft rotatably connected inside the protective housing, a large gear fixedly sleeved on the surface of the output shaft, the large gear meshing with the small gear, a lubrication box fixedly connected to the bottom wall of the protective housing, and the interior of the lubrication box... A nozzle is fixedly connected, and the interior of the nozzle communicates with the interior of the lubrication box. A sliding device is installed inside the lubrication box, which includes a slider that is slidably connected inside the lubrication box. A spring is fixedly connected to the surface of the slider, and the end of the spring away from the slider is fixedly connected to the inner wall of the lubrication box. A push block is fixedly connected to the upper surface of the slider. A rotating block is fixedly connected to the surface of the input shaft, and a fixed shaft is rotatably connected inside the rotating block. A roller is rotatably sleeved on the surface of the fixed shaft, and the surface of the roller contacts the surface of the push block. A through hole is opened on the upper surface of the lubrication box, and a protrusion is fixedly connected to the top wall of the lubrication box. A rotating rod is rotatably sleeved inside the protrusion, and a baffle for sealing the through hole is fixedly sleeved on the surface of the rotating rod.

[0006] Preferably, a small gear is fixedly sleeved on the surface of the rotating shaft, and an output shaft is rotatably connected inside the protective housing. A large gear is fixedly sleeved on the surface of the output shaft, and the large gear meshes with the small gear.

[0007] Preferably, a nozzle is fixedly connected inside the lubrication box, and the inside of the nozzle communicates with the inside of the lubrication box.

[0008] Preferably, the sliding device includes a slider that is slidably connected inside the lubrication box, a spring that is fixedly connected to the surface of the slider, the end of the spring away from the slider that is fixedly connected to the inner wall of the lubrication box, and a push block that is fixedly connected to the upper surface of the slider.

[0009] Preferably, a rotating block is fixedly connected to the surface of the input shaft, a fixed shaft is rotatably connected inside the rotating block, and a roller is rotatably sleeved on the surface of the fixed shaft, with the surface of the roller contacting the surface of the push block.

[0010] Preferably, the upper surface of the lubrication box has a through hole, the top wall of the lubrication box is fixedly connected to a protrusion, a rotating rod is rotatably sleeved inside the protrusion, and a baffle is fixedly sleeved on the surface of the rotating rod.

[0011] Preferably, the inner wall of the protrusion is provided with an annular groove, and a ball is slidably connected inside the annular groove, with the ball being equidistantly distributed inside the annular groove.

[0012] Preferably, the surface of the rotating rod is provided with an annular groove, and the ball is slidably connected inside the annular groove.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] (1) In this low-voltage, high-torque reducer, the lubricating oil moves forward and drives the baffle to rotate. The rotation of the baffle drives the rotating rod to rotate inside the protrusion. The rotation of the baffle seals the opening of the through hole. At this time, the lubricating oil cannot flow out of the through hole. The slider pushes the lubricating oil to gradually slide forward to the top of the lubrication box and flows out from the inside of the nozzle to spray on the surface of the pinion and bevel gear, lubricating the meshing parts of the pinion and bevel gear. When the output shaft speed is low, the meshing parts of the pinion and bevel gear can still be lubricated, avoiding poor lubrication of the internal shaft of the low-voltage, high-torque reducer from affecting the operation.

[0015] (2) In this low-voltage, high-torque reducer, the diameter of the conical gear ring is larger than that of the conical gear. The first speed reduction of the rotating shaft is achieved through the meshing connection between the conical gear ring and the conical gear. Then, the output shaft is reduced a second time through the meshing connection between the small gear and the large gear. Unlike the existing coaxial reducers that use a single set of gears for transmission, the two speed reductions avoid the occurrence of tooth breakage when transmitting large torque, and also enable the output shaft to output greater torque.

[0016] (3) In this low-voltage high-torque reducer, the rotating block rotates to drive the fixed shaft to rotate, and the fixed shaft drives the roller to rotate to squeeze the surface of the push block. The roller rotates through the friction between the roller and the surface of the push block, reducing the friction between the roller and the surface of the push block, preventing the rotating block from getting stuck on the surface of the push block and causing damage, avoiding economic losses, and improving the stability of the low-voltage high-torque reducer.

[0017] (4) In this low voltage and high torque reducer, the rotating rod rotates through the annular groove to drive the ball to rotate inside the annular groove. The ball rolls by friction with the inner wall of the annular groove, thereby reducing the friction between the rotating rod and the inside of the protrusion, reducing the resistance of the rotating rod rotating inside the protrusion, and thus driving the baffle to rotate more smoothly to seal the through hole, ensuring that the baffle can completely cover the through hole. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall structure of a low-voltage, high-torque speed reducer according to the present invention.

[0020] Figure 2 This is a schematic diagram of the overall structure of a low-voltage, high-torque speed reducer according to the present invention.

[0021] Figure 3 This is a schematic diagram of the internal structure of the protective shell of the present invention;

[0022] Figure 4 This is a schematic diagram of the lubrication box of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the lubrication box of the present invention;

[0024] Figure 6 This is a schematic diagram of the rotating block of the present invention;

[0025] Figure 7 This is a cross-sectional structural diagram of the protrusion of the present invention.

[0026] Reference numerals: 1. Protective housing; 2. Fixed base; 3. Bushing; 4. Input shaft; 5. Bevel gear; 6. Rotating shaft; 7. Bevel gear ring; 8. Pinion; 9. Output shaft; 10. Large gear; 11. Lubrication box; 12. Nozzle; 13. Slider; 14. Spring; 15. Push block; 16. Rotating block; 17. Fixed shaft; 18. Roller; 19. Through hole; 20. Protrusion; 21. Rotating rod; 22. Baffle; 23. Annular groove; 24. Ball; 25. Annular groove. Detailed Implementation

[0027] This section will describe in detail specific embodiments of the present invention. Preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but they should not be construed as limiting the scope of protection of the present invention.

[0028] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are 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 limiting this invention.

[0029] In the description of this invention, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0030] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0031] Please see Figure 1-7 The present invention provides a technical solution: a low-voltage, high-torque reducer, comprising a protective housing 1, a fixed base 2 fixedly connected to the bottom of the protective housing 1, a bushing 3 fixedly sleeved inside the protective housing 1, an input shaft 4 rotatably sleeved inside the bushing 3, a bevel gear 5 fixedly connected to the left end of the input shaft 4, a rotating shaft 6 rotatably connected inside the protective housing 1, a bevel gear ring 7 fixedly sleeved on the surface of the rotating shaft 6, the bevel gear ring 7 meshing with the bevel gear 5, a pinion 8 fixedly sleeved on the surface of the rotating shaft 6, an output shaft 9 rotatably connected inside the protective housing 1, a large gear 10 fixedly sleeved on the surface of the output shaft 9, the large gear 10 meshing with the pinion 8.

[0032] In operation, this low-voltage, high-torque reducer has its input shaft 4 fixedly connected to an external power device. The power device drives the input shaft 4 to rotate inside the bushing 3. The rotation of the input shaft 4 drives the bevel gear 5 to rotate, which in turn drives the bevel gear ring 7 to rotate. The rotation of the bevel gear ring 7 drives the rotating shaft 6 to rotate, which in turn drives the pinion gear 8 to rotate. The pinion gear 8 then drives the large gear 10 to rotate, which in turn drives the output shaft 9 to rotate. The diameter of the bevel gear ring 7 is larger than that of the bevel gear 5. The meshing connection between the bevel gear ring 7 and the bevel gear 5 reduces the speed of the rotating shaft 6 for the first time. Then, the meshing connection between the pinion gear 8 and the large gear 10 reduces the speed of the output shaft 9 for the second time. Unlike existing coaxial reducers that use a single set of gears for transmission, this two-stage speed reduction avoids tooth breakage when transmitting large torque and allows the output shaft 9 to output greater torque.

[0033] A lubrication box 11 is fixedly connected to the bottom wall of the protective shell 1. A nozzle 12 is fixedly connected inside the lubrication box 11. The inside of the nozzle 12 communicates with the inside of the lubrication box 11. A slider 13 is slidably connected inside the lubrication box 11. A spring 14 is fixedly connected to the surface of the slider 13. The end of the spring 14 away from the slider 13 is fixedly connected to the inner wall of the lubrication box 11. A push block 15 is fixedly connected to the upper surface of the slider 13. A rotating block 16 is fixedly connected to the surface of the input shaft 4. A fixed shaft 17 is rotatably connected inside the rotating block 16. A roller 18 is rotatably sleeved on the surface of the fixed shaft 17. The surface of the roller 18 is in contact with the surface of the push block 15.

[0034] During the rotation of the input shaft 4, the rotating block 16 is simultaneously driven to rotate around the center of the input shaft 4. The rotation of the rotating block 16 drives the fixed shaft 17 to rotate, and the fixed shaft 17 drives the roller 18 to rotate and press the surface of the push block 15. The roller 18 rotates due to the friction between itself and the surface of the push block 15, reducing the friction between the roller 18 and the surface of the push block 15, preventing the rotating block 16 from getting stuck on the surface of the push block 15 and causing damage, avoiding economic losses, and improving the stability of the low-voltage, high-torque reducer.

[0035] The upper surface of the lubrication box 11 has a through hole 19, and the top wall of the lubrication box 11 is fixedly connected to a protrusion 20. A rotating rod 21 is rotatably sleeved inside the protrusion 20, and a baffle 22 is fixedly sleeved on the surface of the rotating rod 21.

[0036] Push block 15 slides backward under the squeezing action of roller 18. This backward sliding of push block 15 causes slider 13 to slide backward inside lubrication tank 11. Sliding slider 13 compresses spring 14, which in turn exerts a forward elastic force on slider 13. At this time, lubricating oil inside protective housing 1 enters lubrication tank 11 through through hole 19. Rotating block 16 continues to rotate, causing roller 18 to rotate and disengage from the surface of push block 15. Spring 14 then pushes slider 13 forward, which in turn pushes the lubricating oil inside lubrication tank 11 forward. This forward movement of the lubricating oil causes the stop... When plate 22 rotates, the rotation of baffle 22 drives the rotating rod 21 to rotate inside the protrusion 20. The rotation of baffle 22 seals the opening of through hole 19. At this time, lubricating oil cannot flow out from through hole 19. Slider 13 pushes the lubricating oil to gradually slide forward to the top of lubrication box 11 and flows out from inside nozzle 12 to spray on the surface of pinion 8 and bevel gear 5, lubricating the meshing parts of pinion 8 and bevel gear 5. When the speed of output shaft 9 is low, the meshing parts of pinion 8 and bevel gear 5 can still be lubricated, avoiding poor lubrication of the internal shaft of the low voltage high torque reducer, which affects the operation.

[0037] The inner wall of the protrusion 20 is provided with an annular groove 23, and a ball 24 is slidably connected inside the annular groove 23. The ball 24 is equidistantly distributed inside the annular groove 23. The surface of the rotating rod 21 is provided with an annular groove 25, and the ball 24 is slidably connected inside the annular groove 25.

[0038] The rotation of the baffle 22 causes the rotating rod 21 to rotate inside the protrusion 20. The rotation of the rotating rod 21 drives the ball 24 to rotate inside the annular groove 25 through the annular groove 23. The ball 24 rolls by friction with the inner wall of the annular groove 25, thereby reducing the friction between the rotating rod 21 and the inside of the protrusion 20, reducing the resistance of the rotating rod 21 rotating inside the protrusion 20, and thus causing the baffle 22 to rotate more smoothly to seal the through hole 19, ensuring that the baffle 22 can completely cover the through hole 19.

[0039] Working Principle: This low-voltage, high-torque reducer, during operation, drives the input shaft 4 to rotate via a power device. The input shaft 4 drives the bevel gear 5 to rotate, which in turn drives the bevel gear ring 7 to rotate. The rotation of the bevel gear ring 7 drives the rotating shaft 6 to rotate, which in turn drives the pinion 8 to rotate. The pinion 8 then drives the large gear 10 and the output shaft 9 to rotate. This double speed reduction prevents tooth breakage when transmitting large torque. During the rotation of the input shaft 4, the rotating block 16 simultaneously rotates around the center of the input shaft 4. The rotation of the rotating block 16 drives the fixed shaft 17 to rotate, which in turn drives the roller 18 to rotate and press against the surface of the push block 15. The roller 18 rotates due to friction with the surface of the push block 15, causing the push block 15 to slide the slider 13 backward, compressing the spring 14. The lubricating oil inside the protective housing 1 enters the lubrication box 11 through the through hole 19. After the rotating block 16 continues to rotate and drives the roller 18 to rotate away from the surface of the push block 15, the spring 14 pushes the slider 13 to slide forward. The slider 13 slides forward and pushes the lubricating oil inside the lubrication box 11 to move forward. The lubricating oil moves forward and drives the baffle 22 to rotate. The rotation of the baffle 22 drives the rotating rod 21 to rotate inside the protrusion 20. The rotation of the baffle 22 seals the opening of the through hole 19. The slider 13 pushes the lubricating oil to gradually slide forward to the top of the lubrication box 11 and flows out from the inside of the nozzle 12 and sprays onto the surface of the pinion 8 and the bevel gear 5. The rotation of the baffle 22 drives the rotating rod 21 to rotate inside the protrusion 20. The rotation of the rotating rod 21 drives the ball 24 to rotate inside the annular groove 25 through the annular groove 23. The ball 24 rolls by friction with the inner wall of the annular groove 25, thereby reducing the friction between the rotating rod 21 and the inside of the protrusion 20.

[0040] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A low voltage high torque reduction gear comprising a protective housing (1), characterized in that: The bottom of the protective shell (1) is fixedly connected to a fixed base (2). A bushing (3) is fixedly sleeved inside the protective shell (1). An input shaft (4) is rotatably sleeved inside the bushing (3). A bevel gear (5) is fixedly connected to the left end of the input shaft (4). A rotating shaft (6) is rotatably connected inside the protective shell (1). A conical gear ring (7) is fixedly sleeved on the surface of the rotating shaft (6). The conical gear ring (7) meshes with the bevel gear (5). A small gear (8) is fixedly sleeved on the surface of the rotating shaft (6). An output shaft (9) is rotatably connected inside the protective shell (1). A large gear (10) is fixedly sleeved on the surface of the output shaft (9). The large gear (10) meshes with the small gear (8). A lubrication box (11) is fixedly connected to the bottom wall of the protective shell (1). A nozzle (12) is fixedly connected inside the lubrication box (11). The inside of the nozzle (12) communicates with the inside of the lubrication box (11). A slider (13) is slidably connected inside the lubrication box (11). The slider (13) is slidably connected inside the lubrication box (11). A spring (14) is fixedly connected to the surface of the slider (13). The end of the spring (14) away from the slider (13) is fixedly connected to the inner wall of the lubrication box (11). A push block (15) is fixedly connected to the upper surface of the slider (13). A rotating block (16) is fixedly connected to the surface of the input shaft (4). A fixed shaft (17) is rotatably connected inside the rotating block (16). A roller (18) is rotatably sleeved on the surface of the fixed shaft (17). The surface of the roller (18) is in contact with the surface of the push block (15). A through hole (19) is opened on the upper surface of the lubrication box (11). A protrusion (20) is fixedly connected to the top wall of the lubrication box (11). A rotating rod (21) is rotatably sleeved inside the protrusion (20). A baffle (22) corresponding to the through hole (19) is fixedly sleeved on the surface of the rotating rod (21).

2. A low voltage high torque speed reducer as claimed in claim 1, wherein: The inner wall of the protrusion (20) is provided with an annular groove (23), and a ball (24) is slidably connected inside the annular groove (23). The ball (24) is equidistantly distributed inside the annular groove (23).

3. A low voltage high torque speed reducer as claimed in claim 2, wherein: The rotating rod (21) has an annular groove (25) on its surface, and the ball (24) is slidably connected inside the annular groove (25).

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