Noise reduction type gearbox

Abstract

The utility model discloses a kind of noise reduction type gearboxes, it includes: bottom plate, the top of the bottom plate is fixedly connected with cabinet, sound-absorbing cotton is laid in the inside of the cabinet, the bottom wall of the cabinet is provided with damper, the bottom wall of the cabinet is fixedly connected with mounting plate, the inboard of the mounting plate is fixedly connected with slide bar, shock-absorbing spring is sleeved on the outer wall of the slide bar, the outer wall of the slide bar is slidably connected with sliding block, the top of the damper is fixedly connected with shock-absorbing plate, the top of the shock-absorbing plate is provided with transmission, the bottom of the shock-absorbing plate and the top of sliding block are all fixedly connected with movable seat, and the movable seat between upper and lower is connected through connecting rod, the elastic force generated when shock-absorbing spring stretches or compresses can absorb and offset part of vibration force generated when transmission works, and further can reduce the generation of noise from root, simultaneously through sound-absorbing cotton can absorb part of noise, and further improve the noise reduction performance of the gearbox.

Description

Technical Field

[0001] This utility model relates to the field of vehicle parts technology, and in particular to a noise-reducing transmission. Background Technology

[0002] The transmission is a core power transmission and regulation device in mechanical equipment (especially automobiles, construction machinery, machine tools, etc.). Its core function is to connect the power source (such as engine, electric motor) and the actuator (such as wheels, working parts). By changing the speed, torque and direction of rotation of the power, the equipment can obtain appropriate power output under different working conditions, thereby meeting various operating requirements such as starting, accelerating, decelerating, and reversing.

[0003] Existing transmissions have poor noise reduction capabilities. During operation, the transmission will generate a certain degree of vibration, which in turn produces noise. This not only affects the driving experience but also easily damages the transmission. Utility Model Content

[0004] The purpose of this invention is to provide a noise-reducing transmission that solves the problem that existing transmissions have poor noise reduction performance, and that the transmission will generate a certain degree of vibration during operation, which in turn produces noise, affecting the driving experience and easily causing damage to the transmission.

[0005] To achieve the above objectives, a noise-reducing gearbox is provided, comprising: a base plate, a housing fixedly connected to the top of the base plate, sound-absorbing cotton lining the interior of the housing, a damper provided on the bottom wall of the housing, a mounting plate fixedly connected to the bottom wall of the housing, a slide rod fixedly connected to the inner side of the mounting plate, a shock-absorbing spring sleeved on the outer wall of the slide rod, a slider slidably connected to the outer wall of the slide rod, a shock-absorbing plate fixedly connected to the top of the damper, a gearbox provided on the top of the shock-absorbing plate, and movable seats fixedly connected to the bottom of the shock-absorbing plate and the top of the slider, with the upper and lower movable seats connected by a connecting rod, which facilitates the shock absorption of the gearbox, reduces the vibration amplitude of the gearbox, and thus reduces noise generation at the source;

[0006] Ventilation openings are provided on both sides of the housing, and mounting grooves are provided on the outer side of the ventilation openings. A dustproof net is movably connected inside the mounting grooves. Heat dissipation fins are movably connected to both the front and back of the housing, and a housing cover is attached to the top of the housing, which improves the heat dissipation effect of the transmission.

[0007] According to the aforementioned noise-reducing gearbox, the two ends of the damping spring are fixedly connected to one side of the mounting plate and one side of the slider, respectively, which facilitates the reduction of the vibration amplitude of the gearbox and thus reduces the generation of noise.

[0008] According to the noise-reducing gearbox, the slider has a through hole on its side, and the slider is slidably connected to the outer wall of the slide rod through the through hole, which facilitates the limiting of the slider.

[0009] According to the noise-reducing gearbox, both ends of the connecting rod are provided with movable holes, and both ends of the connecting rod are rotatably connected to the movable seat through the movable holes to facilitate the rotation of the connecting rod.

[0010] According to the aforementioned noise-reducing gearbox, the shape and size of the dustproof net are matched with the shape and size of the mounting groove, and the dustproof net is movably connected to the mounting groove, which facilitates the installation of the dustproof net.

[0011] According to the noise reduction gearbox, the dustproof net has mounting holes on both sides and the mounting groove, and the two mounting holes are connected by fixing bolts to facilitate the positioning of the dustproof net.

[0012] According to the aforementioned noise-reducing gearbox, mounting holes are provided on both the front and back sides of the housing and on the heat dissipation fins, and the shape, size and position of the two sets of mounting holes correspond to each other, which facilitates the installation of the heat dissipation fins.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] 1. This noise-reducing gearbox incorporates damping springs inside the housing. The elastic force generated by the compression and stretching of these springs can offset and absorb some of the vibration force generated during gearbox operation, thereby reducing the vibration amplitude of the gearbox. Furthermore, the damper prevents excessive vibration of the damping springs, thus reducing noise generation at its source. Additionally, the interior of the housing is lined with sound-absorbing cotton, which absorbs some noise, further improving the noise reduction performance of the gearbox and extending its service life.

[0015] 2. This noise-reducing gearbox features ventilation openings on both sides of the gearbox body and cooling fins on both sides of the gearbox body, which facilitates heat dissipation of the gearbox and prevents the temperature inside the gearbox from getting too high, thus improving the heat dissipation effect of the gearbox. At the same time, dust screens are installed on the ventilation openings to prevent dust and other debris from entering the gearbox body. Both the dust screens and the cooling fins are easy to install and remove, thus facilitating cleaning.

[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1This is a three-dimensional structural diagram of a noise-reducing gearbox according to the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of a noise-reducing gearbox according to the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of a noise-reducing gearbox according to the present invention;

[0021] Figure 4 This is a three-dimensional structural diagram of the heat sink fins of a noise-reducing gearbox according to the present invention.

[0022] Figure 5 This is a three-dimensional structural diagram of a dustproof mesh for a noise-reducing gearbox according to the present invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the slider of a noise-reducing gearbox according to the present invention.

[0024] Legend:

[0025] 1. Base plate; 2. Enclosure; 3. Sound-absorbing cotton; 4. Damper; 5. Mounting plate; 6. Slide rod; 7. Shock-absorbing spring; 8. Slider; 9. Through hole; 10. Movable seat; 11. Connecting rod; 12. Shock-absorbing plate; 13. Gearbox; 14. Ventilation opening; 15. Mounting slot; 16. Mounting hole one; 17. Dustproof net; 18. Mounting hole two; 19. Heat dissipation fins; 20. Enclosure cover. Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model 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 the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-6This utility model discloses a noise-reducing gearbox, comprising: a base plate 1, a housing 2 fixedly connected to the top of the base plate 1, sound-absorbing cotton 3 laid inside the housing 2, a damper 4 provided on the bottom wall of the housing 2, a mounting plate 5 fixedly connected to the bottom wall of the housing 2, a slide rod 6 fixedly connected to the inner side of the mounting plate 5, a shock-absorbing spring 7 sleeved on the outer wall of the slide rod 6, a slider 8 slidably connected to the outer wall of the slide rod 6, a shock-absorbing plate 12 fixedly connected to the top of the damper 4, a gearbox 13 provided on the top of the shock-absorbing plate 12, and movable seats 10 fixedly connected to the bottom of the shock-absorbing plate 12 and the top of the slider 8, and the two movable seats 10 are connected by a connecting rod 11. The elastic force generated by the compression and stretching of the shock-absorbing spring 7 can absorb and offset part of the vibration force, reduce the vibration amplitude of the gearbox 13, thereby reducing the generation of noise, protecting the gearbox 13, and improving the service life of the gearbox 13.

[0028] Ventilation openings 14 are provided on both sides of the housing 2. An installation groove 15 is provided on the outside of the ventilation opening 14. A dustproof net 17 is movably connected inside the installation groove 15. Heat dissipation fins 19 are movably connected on both the front and back of the housing 2. A cover 20 is attached to the top of the housing 2, which improves the ventilation and heat dissipation effect of the housing 2, thereby facilitating the heat dissipation of the transmission 13.

[0029] The two ends of the damping spring 7 are fixedly connected to one side of the mounting plate 5 and one side of the slider 8, respectively. By driving the slider 8 to stretch or compress the damping spring 7 through the connecting rod 11, the vibration amplitude of the transmission 13 can be reduced, thereby reducing the generation of noise from the source.

[0030] The slider 8 has a through hole 9 on its side. The slider 8 is slidably connected to the outer wall of the slide rod 6 through the through hole 9, which facilitates the guidance and limiting of the slider 8.

[0031] Both ends of the connecting rod 11 are provided with movable holes, and both ends of the connecting rod 11 are rotatably connected to the movable seat 10 through the movable holes, which facilitates the rotation of the connecting rod 11 and thus facilitates the stretching and compression of the shock-absorbing spring 7.

[0032] The shape and size of the dustproof net 17 match the shape and size of the mounting groove 15, and the dustproof net 17 is movably connected to the mounting groove 15, which facilitates the installation of the dustproof net 17.

[0033] The dustproof net 17 and the mounting groove 15 are provided with mounting holes 16 on both sides. The two mounting holes 16 are connected by fixing bolts. The dustproof net 17 is fixed in the mounting groove 15 by fixing bolts, which facilitates installation and disassembly, and thus facilitates cleaning and replacement of the dustproof net 17.

[0034] Mounting holes 18 are provided on both sides of the housing 2 and on the heat dissipation fins 19. The shape, size and position of the two sets of mounting holes 18 correspond to each other. The heat dissipation fins 19 are installed on the front and back of the housing 2 by fixing bolts, which can absorb the heat generated when the gearbox 13 is working, thus improving the heat dissipation performance of the heat dissipation box.

[0035] Working principle: When the transmission 13 vibrates during operation, the damping plate 12 moves up and down, causing the connecting rod 11 to stretch or compress the damping spring 7. The elastic force generated by the stretching or compression of the damping spring 7 can absorb and offset part of the vibration force generated by the transmission 13 during operation. In cooperation with the damper 4, the vibration amplitude of the transmission 13 can be reduced, thereby reducing noise generation at the source. At the same time, the sound-absorbing cotton 3 can absorb some noise, thereby further improving the noise reduction performance of the transmission. Meanwhile, the heat dissipation fins 19 and the vents 14 enable the transmission to have good heat dissipation performance, which can prevent the transmission 13 from overheating. The heat dissipation fins 19 and the dust filter 17 are installed with fixing bolts, which are easy to disassemble, thus facilitating cleaning and replacement.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model 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 utility model.

Claims

1. A noise-reducing transmission, comprising: The base plate (1) is characterized in that a box (2) is fixedly connected to the top of the base plate (1), the inside of the box (2) is lined with sound-absorbing cotton (3), a damper (4) is provided on the bottom wall of the box (2), an mounting plate (5) is fixedly connected to the bottom wall of the box (2), a slide rod (6) is fixedly connected to the inner side of the mounting plate (5), a shock-absorbing spring (7) is sleeved on the outer wall of the slide rod (6), a slider (8) is slidably connected to the outer wall of the slide rod (6), a shock-absorbing plate (12) is fixedly connected to the top of the damper (4), a gearbox (13) is provided on the top of the shock-absorbing plate (12), and movable seats (10) are fixedly connected to the bottom of the shock-absorbing plate (12) and the top of the slider (8), and the two movable seats (10) are connected by a connecting rod (11); Ventilation openings (14) are provided on both sides of the box (2). An installation groove (15) is provided on the outside of the ventilation opening (14). A dustproof net (17) is movably connected inside the installation groove (15). Heat dissipation fins (19) are movably connected to both the front and back of the box (2). A box cover (20) is attached to the top of the box (2).

2. The noise-reducing gearbox according to claim 1, characterized in that, The two ends of the shock-absorbing spring (7) are fixedly connected to one side of the mounting plate (5) and one side of the slider (8), respectively.

3. The noise-reducing gearbox according to claim 1, characterized in that, The slider (8) has a through hole (9) on its side, and the slider (8) is slidably connected to the outer wall of the slide rod (6) through the through hole (9).

4. A noise-reducing gearbox according to claim 1, characterized in that, Both ends of the connecting rod (11) are provided with movable holes, and both ends of the connecting rod (11) are rotatably connected to the movable seat (10) through the movable holes.

5. A noise-reducing gearbox according to claim 1, characterized in that, The shape and size of the dustproof net (17) are matched with the shape and size of the mounting groove (15), and the dustproof net (17) and the mounting groove (15) are movably connected.

6. A noise-reducing gearbox according to claim 1, characterized in that, The dustproof net (17) and the mounting groove (15) are provided with mounting holes (16) on both sides, and the two mounting holes (16) are connected by fixing bolts.

7. A noise-reducing gearbox according to claim 1, characterized in that, Mounting holes 2 (18) are provided on both sides of the housing (2) and on the heat dissipation fins (19), and the shape, size and position of the two sets of mounting holes 2 (18) correspond to each other.

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