Gear transmission noise reduction device

Abstract

The utility model discloses a gear transmission noise reduction device, which relates to the technical field of speed reducers, and comprises a base and a top cover, an input shaft, an output shaft and a transmission shaft are respectively and rotatably mounted in the base through bearings, and two reduction gears are fixedly connected to the outer side of the transmission shaft. A Z-shaped plate is arranged at the tops of the two reduction gears, rubber blocks are fixedly connected to the two sides of the bottom of the Z-shaped plate correspondingly, oil guide grooves are formed in the bottoms of the rubber blocks, a mounting box is fixedly connected to the top of the top cover, and a grease barrel is arranged in the mounting box. When the gear transmission noise reduction device works, the pressing plate injects stored grease into the oil guide groove of the rubber block through the grease barrel, the contact area of the grease and tooth seams of the reduction gear is increased, and therefore the lubrication uniformity is improved, and noise generated during gear transmission is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reducer technical field, concretely is a gear transmission noise reduction device. BACKGROUND

[0002] The reducer is a kind of independent component by the gear transmission enclosed in rigid shell, commonly used as the speed reduction transmission device between prime mover and working machine, it plays the role of matching rotational speed and transmitting torque between prime mover and working machine or actuating mechanism, it is extremely widely used in modern machinery, during the operation of reducer, meshing transmission between rotating shaft gear and driving gear, the noise is generated between friction of gear and rotation of rotating shaft, noise transmission to outside is easy to cause noise pollution.

[0003] In prior art, soundproofing cotton is usually added to the inner wall of reducer protective box to reduce the transmission of noise, however, during the process of internal gear transmission of reducer, the lubricating grease smeared on the surface of internal transmission gear will be less and less with the working time, leading to insufficient lubrication between gears, so as to increase wear and friction between gears, reduce the service life of gear, and the noise generated by gear transmission is bigger and bigger, which causes impact on surrounding environment. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a gear transmission noise reduction device to solve the problem of insufficient lubrication of gear transmission to generate noise in prior art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a gear transmission noise reduction device, including base and top cover, the base is internally rotatably installed with input shaft, output shaft and transmission shaft through bearing respectively, the transmission shaft outer side is fixedly connected with two reduction gears, two reduction gears top is provided with Z type board, Z type board bottom two sides are fixedly connected with rubber block, rubber block bottom is equipped with oil guide groove, the top cover top is fixedly connected with mounting box, the mounting box is internally provided with grease cartridge, the grease cartridge bottom is equipped with two output ports, when working, pressing plate is injected into the oil guide groove of rubber block by copper pipe with the grease cartridge stored grease, increase the contact area of grease and reduction gear tooth gap, so as to improve the uniformity of lubrication, reduce the noise when gear transmission,

[0006] Preferably, the front side of the base is provided with a front soundproof cover, two through holes are formed in the inside of the front soundproof cover and are matched with the input shaft and the output shaft, the rear side of the base is provided with a rear soundproof cover, the two sides of the mounting box are fixedly connected with limiting strips matched with the rear soundproof cover, the inside of the front soundproof cover and the rear soundproof cover is filled with sound-absorbing cotton, the front soundproof cover is matched with the rear soundproof cover, the front soundproof cover and the rear soundproof cover on the outside of the base and the top cover are fixedly connected with bolts, and the front soundproof cover, the rear soundproof cover and the sound-absorbing cotton filled in the inside of the front soundproof cover and the rear soundproof cover can absorb and isolate the noise during gear transmission, thereby reducing the transmission of noise during work.

[0007] Preferably, the input shaft and the output shaft are fixedly connected with transmission gears outside, the two transmission gears are meshed with two speed reduction gears, respectively, the top of the Z-shaped plate is fixedly connected with a threaded rod and a limiting rod, the top of the threaded rod and the limiting rod is fixedly connected with a grease cylinder, the bottom of the grease cylinder is fixedly connected with two copper pipes, the other ends of the two copper pipes are respectively penetrated through the Z-shaped plate and are fixedly connected with two rubber blocks, and the inside of the grease cylinder is connected with the rubber blocks through the two copper pipes during work.

[0008] Preferably, the inside of the mounting box is fixedly connected with a fixed plate, the top of the fixed plate is rotatably connected with a worm gear, the limiting rod is penetrated through the fixed plate and is slidably connected with the fixed plate, the threaded rod is penetrated through the fixed plate and the worm gear and is threadedly connected with the worm gear, the inside of the mounting box is rotatably connected with a worm, the worm is meshed with the worm gear, one side of the mounting box is fixedly connected with a driving motor, and the output end of the driving motor is fixedly connected with the worm.

[0009] Preferably, the top of the grease cylinder is penetrated through the top of the mounting box and is slidably connected with the mounting box, the grease cylinder is fixedly connected with two sliding blocks on one side, one of the sliding blocks is penetrated through the mounting box and is slidably connected with the mounting box, the two sliding blocks are fixedly connected with an extension rod on the side away from the grease cylinder, and the inside of the grease cylinder is uniformly extruded by the extension rod during lubrication of the inside gears of the device, so that the rubber blocks uniformly lubricate the inside gears of the base.

[0010] Preferably, the output end of the extension rod is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a push rod on one side, the bottom of the push rod is fixedly connected with a pressing plate, the pressing plate is matched with the grease cylinder, the pressing plate is in sliding contact with the inside of the grease cylinder, the top of the pressing plate is provided with an oil inlet and a threaded cover matched with the oil inlet on one side, and the top of the mounting box is fixedly connected with a transparent observation window on one side.

[0011] Preferably, the oil cylinder is internally slidably connected with two stop rods, both of which are slidably connected inside one of the sliders, and both of which are provided with openings at the front ends, which are adapted to the outlet, and are provided with limiting grooves at the top of the rear ends, and both sides of the telescopic rod are hingedly connected with positioning rods which are adapted to the limiting grooves, and the slider bottom slidably connected with the mounting box is formed with a baffle which is attached to the mounting box to prevent dust from entering the inside of the speed reducer when the gear is driven.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] 1、The rubber block of the application is attached to the speed reduction gear when the Z-shaped plate descends to smear lubricating grease on the internal gear, so that the lubricating grease is smeared on the tooth gap of the speed reduction gear through the oil guide groove inside the rubber block, thereby uniformly lubricating the teeth of the transmission gear and the speed reduction gear, reducing the noise generated during gear transmission, preventing excessive lubricating grease in the local speed reduction gear from being thrown out during rotation, and causing oil waste and uneven lubrication effect on the gear.

[0014] 2、The application absorbs and isolates noise through the front and rear soundproof covers and the sound-absorbing cotton inside, reduces the noise size during gear transmission, and workers can observe the lubricating grease condition of the gear through the transparent observation window, lubricate the internal gear in time through the rubber block, prevent insufficient lubrication between gears from increasing wear and tear, reduce the service life of the gear, and make the noise during work larger and larger. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the rear soundproof cover structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the internal structure of the base of the utility model;

[0018] Figure 4 It is a sectional view of the internal structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the rubber block structure of the utility model;

[0020] Figure 6 It is a schematic diagram of the stop rod structure of the utility model.

[0021] The following are the labels in the diagram: 1. Base; 2. Top cover; 3. Front soundproof cover; 4. Rear soundproof cover; 5. Sound-absorbing cotton; 6. Mounting box; 7. Input shaft; 8. Output shaft; 9. Drive shaft; 10. Drive gear; 11. Reduction gear; 12. Z-shaped plate; 13. Rubber block; 14. Fixing plate; 15. Worm gear; 16. Threaded rod; 17. Limiting rod; 18. Worm gear; 19. Grease cylinder; 20. Copper pipe; 21. Telescopic rod; 22. Connecting rod; 23. Push rod; 24. Pressure plate; 25. Stop bar; 26. Output port; 27. Transparent observation window; 28. Slider. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figure 1 - Figure 5 As shown, this unit has an input shaft 7, an output shaft 8, and a transmission shaft 9. Two reduction gears 11 are fixedly connected to the outside of the transmission shaft 9. Z-shaped plates 12 are provided on the top of the two reduction gears 11. Rubber blocks 13 are fixedly connected to the bottom sides of the Z-shaped plates 12 respectively. Oil guide grooves are opened at the bottom of the rubber blocks 13. The top cover 2 is fixedly connected to the top of the mounting box 6. The mounting box 6 is equipped with a grease cylinder 19. The bottom of the grease cylinder 19 has two outlets 26. The base and the top cover are fixedly connected by bolts. During operation, the pressure plate 24 injects the grease stored in the grease cylinder 19 into the oil guide grooves of the rubber blocks 13 through the copper pipe 20, which increases the contact area between the grease and the tooth gaps of the reduction gears 11, thereby improving the uniformity of lubrication and reducing the noise during gear transmission.

[0024] A front soundproof cover 3 is provided on the front side of the base 1. The front soundproof cover 3 has two through holes that are compatible with the input shaft 7 and the output shaft 8. A rear soundproof cover 4 is provided on the rear side of the base 1. Limiting strips that are compatible with the rear soundproof cover 4 are fixedly connected to both sides of the mounting box 6. The front soundproof cover 3 and the sound-absorbing cotton 5 are both filled with sound-absorbing cotton 5. The front soundproof cover 3 and the rear soundproof cover 4 are compatible. The front soundproof cover 3 and the rear soundproof cover 4 on the outer side of the base 1 and the top cover 2 are fixedly connected to each other by bolts. Through the front soundproof cover 3, the rear soundproof cover 4 and the sound-absorbing cotton 5 filled inside them, the noise during gear transmission is absorbed and isolated, and the noise transmission during operation is reduced.

[0025] The input shaft 7 and the output shaft 8 are fixedly connected with transmission gears 10 outside, the two transmission gears 10 are meshingly connected with two reduction gears 11 respectively, a Z-shaped plate 12 is fixedly connected with a threaded rod 16 and a limiting rod 17 at the top, the threaded rod 16 and the limiting rod 17 are fixedly connected with a grease cylinder 19 at the top, the grease cylinder 19 is fixedly connected with two copper pipes 20 at the bottom, the two copper pipes 20 pass through the Z-shaped plate 12 and are fixedly connected with two rubber blocks 13 at the other ends, and the oil in the grease cylinder 19 is input to the bottom of the rubber block 13 to be in contact with the reduction gear 11 through the two copper pipes 20 during work.

[0026] A fixed plate 14 is fixedly connected inside the mounting box 6, the fixed plate 14 is rotatably connected with a worm wheel 15 at the top, the limiting rod 17 passes through the fixed plate 14 and is slidably connected with the fixed plate 14, the threaded rod 16 passes through the fixed plate 14 and the worm wheel 15 and is threadedly connected with the worm wheel 15, a worm 18 is rotatably connected inside the mounting box 6, the worm 18 is meshingly connected with the worm wheel 15, and a driving motor is fixedly connected to one side of the mounting box 6, and the output end of the driving motor is fixedly connected with the worm 18.

[0027] The grease cylinder 19 passes through the top of the mounting box 6 and is slidably connected with the mounting box 6 at the top, the grease cylinder 19 is fixedly connected with two sliding blocks 28 at one side, one of the two sliding blocks 28 passes through the mounting box 6 and is slidably connected with the mounting box 6, the two sliding blocks 28 are fixedly connected with an extension rod 21 away from one side of the grease cylinder 19, and the extension rod 21 extrudes the lubricating grease in the grease cylinder 19 at a constant speed to lubricate the internal gear of the base 1 uniformly when the device lubricates the internal gear.

[0028] The extension rod 21 is fixedly connected with a connecting rod 22 at the output end, the connecting rod 22 is fixedly connected with a push rod 23 at one side of the bottom, the push rod 23 is fixedly connected with a pressing plate 24 at the bottom, the pressing plate 24 is matched with the grease cylinder 19, the pressing plate 24 is slidably contacted in the inside of the grease cylinder 19, a oil outlet and a threaded cover matched with the oil outlet are arranged at one side of the top of the pressing plate 24, a transparent observation window 27 is fixedly connected to one side of the top of the mounting box 6, and the lubricating grease condition of the internal gear of the base 1 is observed through the transparent observation window 27.

[0029] Two stop rods 25 are slidably connected inside the grease cylinder 19, the two stop rods 25 are slidably connected inside one of the two sliding blocks 28, and the two stop rods 25 are provided with openings matched with the oil outlet 26 at the front ends, the two stop rods 25 are provided with limiting grooves at the top of the rear ends, the extension rod 21 is hingedly connected with positioning rods matched with the limiting grooves at the two sides, and the sliding block 28 slidably connected with the mounting box 6 is formed with a baffle at the bottom, the baffle is attached to the mounting box 6, and the baffle prevents the external dust from entering the inside of the speed reducer during gear transmission.

[0030] The utility model discloses a front sound -proof cover 3, rear sound -proof cover 4 are fixedly installed outside the base 1 and the top cover 2 through bolt, reduce the noise that transmits when gear drive through the front sound -proof cover 3, rear sound -proof cover 4 and its inside sound -proof cotton 5, the device uses before putting lubricating oil into the grease cylinder 19 inside storage through the oil outlet of pressing plate 24 top, when gear drive sound is bigger. The worker can operate drive motor work drive worm 18 rotation, worm 18 drive worm wheel 15 rotation, worm wheel 15 is connected with threaded rod 16 threadedly, threaded rod 16 is fixedly connected with copper pipe 20, worm wheel 15 rotation drive threaded rod 16 to descend in the installation box 6 inside, when threaded rod 16 drive Z type board 12 descend, two rubber blocks 13 of Z type board 12 bottom respectively with two reduction gear 11 are pasted. Subsequently input shaft 7 slow rotation drive the reduction gear 11 and transmission gear 10 in the base 1 rotation, subsequently telescopic rod 21 work through connecting rod 22 and push rod 23 press down pressing plate 24, extrude the lubricating grease in the pressing plate 24 to two output ports 26, subsequently the worker can pass through the locating rod and remove the limiting of two stop bars 25, and two stop bars 25 are pulled outward, make the locating rod put into the limiting groove inside stop bar 25 close grease cylinder 19, the opening position of stop bar 25 corresponds with output port 26 at this time, subsequently lubricating grease is extruded in two rubber blocks 13 inside along two copper pipes 20 respectively, and lubricating grease is filled in every tooth gap of reduction gear 11 evenly through the oil guide groove in rubber block 13, and reduction gear 11 is connected with transmission gear 10 meshing, and the rotation reduction gear 11 and transmission gear 10 contact will grease to transmission gear 10 surface, thereby evenly lubricating the gear in the base 1, reduce the friction between the gear, thereby reduce the noise generated when gear drive.

[0031] The rotation speed of transmission gear 10 and reduction gear 11 in the base 1 is different, and the worker can observe the lubrication of the gear in the base 1 through the transparent observation window 27, control the on-off output port 26 through the stop bar 25, adjust the oiling amount of the reduction gear 11 with different number of teeth, prevent the excessive extrusion of grease from increasing the resistance between the gears, and prevent the excessive waste of lubricating grease.

[0032] After oiling, the drive motor is reversed to drive the rubber block 13 away from the reduction gear 11, preventing the rubber block 13 from scraping off the lubricating oil on the surface of the reduction gear 11.

[0033] It is apparent for a person skilled in the art that the present application is not restricted to the details of the above exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary only, and not limiting, the scope of the present application being defined by the appended claims rather than the above description, and all changes coming within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims concerned.

Claims

1. A gear transmission noise reduction device, comprising a base (1) and a top cover (2), the inside of the base (1) is rotatably mounted with an input shaft (7), an output shaft (8) and a transmission shaft (9) respectively through bearings, characterized in that: The transmission shaft (9) outside fixedly connected with two reduction gears (11), two said reduction gear (11) top is provided with Z type board (12), Z type board (12) bottom two sides are respectively fixedly connected with rubber block (13), rubber block (13) bottom is provided with oil guide groove, the top cover (2) top fixedly connected with installation box (6), installation box (6) inside is provided with grease cartridge (19), grease cartridge (19) bottom is provided with two output (26).

2. A gear transmission noise reduction device according to claim 1, characterized in that: The front side of the base (1) is provided with a front soundproof cover (3), the inside of the front soundproof cover (3) is provided with two through holes matched with the input shaft (7) and the output shaft (8), the rear side of the base (1) is provided with a rear soundproof cover (4), the two sides of the installation box (6) are fixedly connected with a limiting strip matched with the rear soundproof cover (4), the inside of the front soundproof cover (3) and the sound-absorbing cotton (5) is filled with sound-absorbing cotton (5).

3. The gear transmission noise reduction device of claim 1, wherein: The input shaft (7) and the output shaft (8) are fixedly connected with transmission gears (10) outside, two transmission gears (10) are respectively engaged with two reduction gears (11), the top of the Z-shaped plate (12) is fixedly connected with a threaded rod (16) and a limiting rod (17), the top of the threaded rod (16) and the limiting rod (17) is fixedly connected with the grease cartridge (19), the bottom of the grease cartridge (19) is fixedly connected with two copper pipes (20), the other end of the two copper pipes (20) respectively penetrates the Z-shaped plate (12) and is fixedly connected with the two rubber blocks (13).

4. A gear noise reduction apparatus according to claim 3, wherein: The inside of the installation box (6) is fixedly connected with a fixed plate (14), the top of the fixed plate (14) is rotatably connected with a worm gear (15), the limiting rod (17) penetrates the fixed plate (14) and is slidably connected with the fixed plate (14), the threaded rod (16) penetrates the fixed plate (14) and the worm gear (15) and is threadedly connected with the worm gear (15), the inside of the installation box (6) is rotatably connected with a worm (18), the worm (18) is engaged with the worm gear (15), one side of the installation box (6) is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with the worm (18).

5. The gear noise reduction apparatus of claim 1, wherein: The top of the grease cartridge (19) penetrates the top of the installation box (6) and is slidably connected with the installation box (6), the grease cartridge (19) is fixedly connected with two sliding blocks (28) on one side, one of the sliding blocks (28) penetrates the installation box (6) and is slidably connected with the installation box (6), the two sliding blocks (28) are fixedly connected with a telescopic rod (21) on the side away from the grease cartridge (19).

6. A gear noise reduction apparatus according to claim 5, wherein: The output end of the telescopic rod (21) is fixedly connected with a connecting rod (22), the bottom of the connecting rod (22) is fixedly connected with a push rod (23) on one side, the bottom of the push rod (23) is fixedly connected with a pressing plate (24), the pressing plate (24) is matched with the grease cartridge (19), the pressing plate (24) is slidably contacted in the inside of the grease cartridge (19), the top of the pressing plate (24) is provided with an oil inlet and a threaded cover matched with the oil inlet on one side, the top of the installation box (6) is fixedly connected with a transparent observation window (27) on one side.

7. A gear noise reduction apparatus according to claim 6, wherein: The grease cylinder (19) is internally connected with two stop rods (25), the two stop rods (25) are all internally connected with one of the sliders (28), and the front ends of the two stop rods (25) are all provided with openings matched with the output ports (26); the rear ends of the two stop rods (25) are all provided with limiting grooves on the top, and the both sides of the telescopic rod (21) are all hinged with positioning rods matched with the limiting grooves.

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