Noise reduction type hard tooth surface speed reducer

Abstract

The utility model relates to the technical field of speed reducers, in particular to a noise reduction type hard tooth surface speed reducer which comprises a motor, a reduction gearbox is fixedly connected to one end of the motor, driving shafts are rotationally connected to the two sides of the reduction gearbox, a protective cover is fixedly connected to the bottom of the reduction gearbox, and a ventilation opening is formed in one end of the protective cover. The bottom of the reduction gearbox is fixedly connected with a damping assembly. A through groove is formed in the bottom of the reduction gearbox, a noise reduction assembly is fixedly connected into the through groove, the damping assembly is used for reducing the vibration strength when the reduction gearbox is used, the noise reduction assembly is used for reducing noise when the reduction gearbox is used, when the reduction gearbox is started, the motor drives the reduction gearbox to work, and meanwhile the vibration strength of the reduction gearbox is effectively reduced through the damping assembly; and the noise reduction assembly effectively reduces noise generated when the reduction gearbox works. Compared with the prior art, the noise and vibration are effectively reduced, and the use comfort and stability of the equipment are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a noise reduction type hardened tooth surface reducer. Background Art

[0002] Hardened gear reducer is a relatively precise machine. Its purpose is to reduce the speed and increase the torque. It is suitable for high-speed shaft speed not exceeding 1500 rpm, gear transmission circumferential speed not exceeding 20 m / s, and working environment temperature of -40℃-45℃. The gears of hardened gear reducer are made of high-strength low-carbon alloy steel through carburizing and quenching. The tooth surface hardness is high. The gears are all made of CNC grinding technology with high precision, good contact, high transmission efficiency, stable operation and low noise. It is small in size, light in weight, long in service life and high in carrying capacity. It is easy to disassemble and install. Hardened gear reducer is widely used in metallurgy, mining, lifting, transportation, cement, construction, chemical industry, textile, printing and dyeing, pharmaceutical and other fields. Hardened gear reducer is a power transmission mechanism, which uses the speed converter of the gear to reduce the number of revolutions of the motor to the required number of revolutions and obtain a larger torque.

[0003] In the prior art, a Chinese patent document with patent number CN217207663U proposes a hard-toothed surface reducer, including a reducer body, two mounting and fixing plates are symmetrically installed on the reducer body, and a connecting structure is installed on each of the two mounting and fixing plates. The connecting structure includes a connecting block, a connecting column and an anti-slip baffle, and there are two connecting columns that are symmetrically installed at the lower end of the connecting block, and the anti-slip baffle is installed at the lower ends of the two connecting columns. A tension spring is sleeved on the connecting column, and an anti-loosening card is installed on the connecting block. By setting the anti-loosening card, the bolts used to install and fix the reducer body can be limited and fixed, thereby preventing the bolts from loosening after long-term use; by setting the connecting structure and the tension spring, so that they cooperate with each other, it is convenient to fix the anti-loosening card, thereby preventing the anti-loosening card from being easily moved by external force when in use. However, in actual use, the above-mentioned reducer reduces the noise of the gear reducer by a rigid connection, and is affected by vibration for a long time, which will cause its deformation, and ultimately lead to the problem of increased vibration and noise of the hard-toothed surface reducer, and the heat on the surface of the existing reducer is difficult to dissipate. Therefore, the utility model proposes a noise reduction type hardened tooth surface reducer to meet the demand of reducing the high noise when the reducer is used. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a noise-reducing hard-toothed reducer to solve the problem of high noise when the reducer is in use.

[0005] Based on the above-mentioned purpose, the utility model provides a noise-reducing hard-tooth surface reducer, including a motor, one end of the motor is fixedly connected to a reduction box, both sides of the reduction box are rotatably connected to drive shafts, a protective cover is provided at the bottom of the reduction box, and a shock-absorbing assembly is fixedly connected to the bottom of the reduction box; a through groove is opened at the bottom of the reduction box, and a noise reduction assembly is fixedly connected in the through groove; the shock-absorbing assembly is used to reduce the vibration intensity of the reduction box when it is in use; the noise reduction assembly is used to reduce the noise of the reduction box when it is used.

[0006] Preferably, the shock absorbing assembly includes a group of support plates fixedly connected to the bottom of the reduction box, a rotating rod is rotatably connected to the support plate, a driving plate is fixedly connected to the rotating rod, a plurality of guide rods are fixedly connected to the bottom of the reduction box, a return spring is fixedly provided on the guide rod, a movable ring is slidably provided on the guide rod, the bottom of the guide rod is fixedly connected to a limiting plate, and one end of the movable ring is fixedly connected to one side of the driving plate.

[0007] Preferably, the noise reduction component includes a sound receiving tube fixedly connected to a groove through the bottom of the inner wall of the reduction box, the bottom of the sound receiving tube is fixedly connected to multiple groups of support rods, support springs are fixedly sleeved on the support rods, the bottom of the support rods is fixedly connected to a sound absorbing tube, and the sound absorbing tube is a retractable structure.

[0008] Preferably, a ventilation hole is opened at one end of the protective cover.

[0009] Preferably, a plurality of guide grooves are provided at the bottom of the driving plate.

[0010] Preferably, the sound receiving tube is in the shape of a trumpet with an opening facing downward.

[0011] Preferably, a guide groove is provided at the bottom of the sound absorbing tube, and the guide groove is in an "S" shape bent to one side.

[0012] Beneficial effects of the utility model:

[0013] 1. When the reduction gearbox is running and vibration occurs, the return spring will buffer the vibration, and the moving ring will slide on the guide rod, so that the driving plate can be driven to rotate around the axis of the rotating rod while moving, thereby realizing the flipping of the driving plate. At the same time, the guide groove of the driving plate plays a guiding role, so that the air in the protective cover can be exchanged through the vent at one end of the protective cover, thereby reducing vibration while improving the heat dissipation effect, ensuring the working stability of the reduction gearbox.

[0014] 2. When the reduction box is working, the noise generated is collected by the horn-shaped sound-receiving tube and transmitted through the supporting spring of the support rod. The sound-absorbing tube can absorb the noise and reduce the propagation path of the noise. At the same time, the design of the guide groove allows the noise to propagate in a circuitous manner inside it, thereby effectively absorbing and reducing the propagation of noise, thereby effectively reducing the noise generated when the reduction box is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the shock absorbing assembly of the utility model;

[0018] Figure 3 This is a schematic diagram of the noise reduction component of the utility model;

[0019] Figure 4 It is a partial cutaway schematic diagram of the sound-absorbing tube of the utility model.

[0020] The markings in the figure are: 1. Motor; 2. Gearbox; 3. Drive shaft; 4. Protective cover; 5. Support plate; 6. Rotating rod; 7. Drive plate; 8. Guide rod; 9. Reset spring; 10. Moving ring; 11. Limit plate; 12. Sound tube; 13. Support rod; 14. Support spring; 15. Sound-absorbing tube; 16. Guide groove. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0022] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0023] like Figure 1-Figure 4 As shown, a noise-reducing hard-tooth surface reducer includes a motor 1, one end of the motor 1 is fixedly connected to a reducer box 2, both sides of the reducer box 2 are rotatably connected to a drive shaft 3, the bottom of the reducer box 2 is sleeved with a protective cover 4, the protective cover 4 is installed at one end of the protective cover 4 and a vent is provided, and the bottom of the reducer box 2 is fixedly connected to a shock absorbing component; a through groove is provided at the bottom of the reducer box 2, and a noise reduction component is fixedly connected in the through groove, the shock absorbing component is used to reduce the vibration intensity of the reducer box 2 when it is in use, and the noise reduction component is used to reduce the noise of the reducer box 2 when it is used. When the reducer is started, the motor 1 drives the reducer box 2 to work, and at the same time the shock absorbing component effectively reduces the vibration intensity of the reducer box 2, and the noise reduction component effectively reduces the noise generated when the reducer box 2 is working, thereby achieving effective reduction of noise and vibration, and improving the comfort and stability of the equipment.

[0024] like Figure 1 and Figure 2As shown, the shock absorbing assembly includes a group of support plates 5 fixedly connected to the bottom of the reduction box 2, a rotating rod 6 is rotatably connected to the support plate 5, a driving plate 7 is fixedly connected to the rotating rod 6, a plurality of guide rods 8 are fixedly connected to the bottom of the reduction box 2, the guide rods 8 are retractable structures, the lower ends of the guide rods 8 are connected to the protective cover 4, a reset spring 9 is fixedly sleeved on the guide rods 8, a moving ring 10 is slidably sleeved on the guide rods 8, a limiting plate 11 is fixedly connected to the bottom of the guide rods 8, one end of the moving ring 10 is fixedly connected to one side of the driving plate 7, and the bottom of the driving plate 7 is opened. A plurality of guide grooves are provided. When the reduction box 2 is running and vibration occurs, the return spring 9 will buffer the vibration, and the moving ring 10 will slide on the guide rod 8, so that the moving ring 10 can move while driving the driving plate 7 to rotate around the axis of the rotating rod 6, thereby realizing the reciprocating deflection of the driving plate 7. At the same time, the guide grooves of the driving plate 7 play a guiding role, so that the air in the protective cover 4 can be exchanged with gas through the vent at one end of the protective cover 4, thereby reducing vibration while improving the heat dissipation effect, thereby ensuring the working stability of the reduction box 2.

[0025] like Figure 1 , Figure 2 and Figure 4 As shown, the noise reduction component includes a sound receiving tube 12 fixedly connected to the bottom of the inner wall of the reduction box 2, the sound receiving tube 12 is in the shape of a trumpet with an opening downward, a plurality of groups of support rods 13 are fixedly connected to the bottom of the sound receiving tube 12, a support spring 14 is fixedly sleeved on the support rod 13, a sound absorbing tube 15 is fixedly connected to the bottom of the support rod 13, the sound absorbing tube 15 is a retractable structure, a guide groove 16 is provided at the bottom of the sound absorbing tube 15, the guide groove 16 is an "S" shape bent to one side, when the reduction box 2 is working, the generated noise is collected by the trumpet-shaped sound receiving tube 12, and is buffered and transmitted by the support spring 14 of the support rod 13, the sound absorbing tube 15 can absorb the noise and reduce the propagation path of the noise, and at the same time, the design of the guide groove 16 allows the noise to propagate in a circuitous manner inside it, thereby effectively absorbing and reducing the propagation of the noise, thereby achieving effective reduction of the noise generated when the reduction box 2 is working.

[0026] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0027] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A noise-reducing hard-toothed reducer, comprising a motor (1), one end of the motor (1) being fixedly connected to a reduction box (2), and both sides of the reduction box (2) being rotatably connected to a drive shaft (3), characterized in that: A protective cover (4) is provided at the bottom of the reduction box (2); a shock absorbing component is fixedly connected to the bottom of the reduction box (2); a through groove is provided at the bottom of the reduction box (2), and a noise reduction component is fixedly connected in the through groove; the shock absorbing component is used to reduce the vibration intensity of the reduction box (2) when it is in use; and the noise reduction component is used to reduce the noise of the reduction box (2) when it is in use.

2. A noise reduction hardened gear reducer according to claim 1, characterized in that: The shock absorbing assembly comprises a group of support plates (5) fixedly connected to the bottom of the reduction box (2), a rotating rod (6) is rotatably connected to the support plate (5), a driving plate (7) is fixedly connected to the rotating rod (6), a plurality of guide rods (8) are fixedly connected to the bottom of the reduction box (2), a return spring (9) is fixedly sleeved on the guide rod (8), a moving ring (10) is slidably sleeved on the guide rod (8), a limiting plate (11) is fixedly connected to the bottom of the guide rod (8), and one end of the moving ring (10) is fixedly connected to one side of the driving plate (7).

3. A noise reduction hardened gear reducer according to claim 1, characterized in that: The noise reduction component comprises a sound receiving tube (12) fixedly connected to a groove penetrating the bottom of the inner wall of the reduction box (2); a plurality of groups of support rods (13) are fixedly connected to the bottom of the sound receiving tube (12); a support spring (14) is fixedly sleeved on the support rod (13); a sound absorbing tube (15) is fixedly connected to the bottom of the support rod (13); and the sound absorbing tube (15) is a retractable structure.

4. A noise reduction hardened gear reducer according to claim 1, characterized in that: A ventilation opening is provided at one end of the protective cover (4).

5. A noise reduction hardened gear reducer according to claim 2, characterized in that: The bottom of the driving plate (7) is provided with a plurality of guide grooves.

6. A noise reduction hardened gear reducer according to claim 3, characterized in that: The sound receiving tube (12) is in the shape of a horn with its opening facing downward.

7. A noise reduction hardened gear reducer according to claim 6, characterized in that: A guide groove (16) is provided at the bottom of the sound-absorbing tube (15), and the guide groove (16) is in an "S" shape bent toward one side.

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