Powder metallurgy bevel gear

Abstract

The utility model discloses a powder metallurgy bevel gear, and relates to the technical field of bevel gears. A powder metallurgy bevel gear comprises a bevel gear body and cooling fins, a shaft hole is formed in the bevel gear body, a limiting groove is formed in the inner wall of the shaft hole in a circular mode, a plurality of threaded holes are formed in the top of the bevel gear body in a circular mode, a plurality of containing grooves are formed in the top of the bevel gear body in a circular mode, and the cooling fins are arranged in the containing grooves. Damping blocks are fixedly mounted in the multiple placement grooves, a plurality of bolts are circularly arranged at the tops of the cooling fins, and a plurality of sealing blocks are circularly and fixedly mounted at the bottoms of the cooling fins; by arranging the damping blocks, the bevel gear has good elasticity and shock absorption performance, and shock generated in the operation process of the bevel gear body can be effectively absorbed, so that noise is reduced; and through shock absorption and noise reduction, the operation performance of the bevel gear body can be improved, and the working efficiency of the whole mechanical equipment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bevel gear technical field, concretely a kind of powder metallurgy bevel gear. BACKGROUND

[0002] Bevel gears, also known as bevel gears or bevel gears, are a kind of mechanical elements for transmitting rotary motion from one shaft to another, and the two shafts usually intersect at a point. The feature of bevel gear is that its teeth are inclined, not perpendicular to the axis like straight-tooth cylindrical gears.

[0003] Chinese utility model patent CN215861604U discloses a kind of powder metallurgy bevel gear, including body, the upper and lower ends of the body are respectively provided with clamping slot and recess, the upper end surface of the body is provided with through hole, the through hole is located between clamping slot and recess, the inside of the through hole is installed gear shaft, the upper and lower ends of the gear shaft are all fixedly connected with clamping block and recess platform, the outer side wall of the recess platform is welded with fixed block, the lower end surface of the fixed block is provided with multiple evenly distributed counterbores, the inside of multiple counterbores is all screw-connected with screw, the inside top of the recess is provided with multiple fixed holes matched with counterbores, by the design of the gear and gear shaft, the gear and gear shaft are not designed integrally, thereby reducing processing difficulty and processing cost.

[0004] However, the existing powder metallurgy bevel gear generates relatively large noise during work, which not only affects the comfort of production environment, but also may have negative impact on the health of operators and production efficiency. Therefore, a kind of powder metallurgy bevel gear is needed. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of powder metallurgy bevel gear to solve the problem in the background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of powder metallurgy bevel gear, including bevel gear main part and fin, the inside of the bevel gear main part is provided with shaft hole, the inner wall of the shaft hole is circularly provided with limit slot, the top of the bevel gear main part is circularly provided with multiple threaded holes, the top of the bevel gear main part is circularly provided with multiple placement grooves, multiple placement grooves are all fixedly installed with shock absorber inside, the top of the fin is circularly provided with multiple bolts, the bottom of the fin is circularly fixedly installed with multiple sealing blocks.

[0007] Further, the material of the shock absorber is rubber 10-15 parts, oxidized graphite 20-25 parts, polymethyl methacrylate 5-10 parts, lime powder 10-15 parts and 3-5 times the weight of water.

[0008] Further, a plurality of the placement grooves are respectively arranged in cross with a plurality of threaded holes.

[0009] Further, a plurality of the bolts are respectively screwed with the inside threads of the plurality of threaded holes.

[0010] Further, the outer surfaces of the plurality of sealing blocks are respectively movably sleeved with the inside positions close to the top of the plurality of placement grooves.

[0011] Further, the heat sink is located at the top of the bevel gear body.

[0012] Compared with the prior art, the powder metallurgy bevel gear has the following advantages

[0013] Beneficial effects:

[0014] 1. The powder metallurgy bevel gear has good elasticity and shock absorption performance by setting the shock-absorbing blocks, can effectively absorb the vibration generated by the bevel gear body during operation, thereby reducing the noise; through shock absorption and noise reduction, the operation performance of the bevel gear body can be improved, and the working efficiency of the overall mechanical equipment is improved.

[0015] 2. The powder metallurgy bevel gear has good heat dissipation effect, which helps to reduce the thermal stress and wear of the bevel gear body, thereby prolonging the service life of the bevel gear body; the sealing blocks can prevent dust, moisture and other pollutants from entering the inside of the bevel gear, protecting the gear from corrosion and premature wear; the optimized setting of the heat sink can improve the heat dissipation efficiency and reduce the additional energy consumption caused by poor heat dissipation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Fig. 2 It is a top view of the bevel gear body of the utility model;

[0018] Fig. 3 It is a connection relationship diagram of the heat sink and the sealing block of the utility model.

[0019] In the figure: 1, shaft hole; 2, heat sink; 3, bolt; 4, threaded hole; 5, bevel gear body; 6, limiting groove; 7, placement groove; 8, shock-absorbing block; 9, sealing block. DETAILED DESCRIPTION

[0020] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those ordinarily skilled in the art without creative work under the premise that the embodiments of the present application are within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The utility model discloses a powder metallurgy bevel gear, including conical gear body 5 and fin 2, the inside of conical gear body 5 is set up shaft hole 1, the inner wall of shaft hole 1 is circular and is set up and is limited to groove 6, the top of conical gear body 5 is circular and is set up with a plurality of threaded holes 4, the top of conical gear body 5 is circular and is set up with a plurality of placing grooves 7, a plurality of placing grooves 7 are all fixedly installed with damping block 8 in the inside, the top of fin 2 is circular and is provided with a plurality of bolts 3, the bottom of fin 2 is circular and is fixedly installed with a plurality of sealing blocks 9.

[0022] Specifically, the material of the damping block 8 is rubber 10-15 parts, oxidized graphite 20-25 parts, polymethyl methacrylate 5-10 parts, lime powder 10-15 parts and water 3-5 times the weight of the mixture.

[0023] Specifically, the plurality of placing grooves 7 are respectively and crossly arranged with the plurality of threaded holes 4.

[0024] Specifically, the plurality of bolts 3 are all threadedly connected with the fin 2, and the plurality of bolts 3 are respectively penetrated through the fin 2 and respectively threadedly connected with the inside of the plurality of threaded holes 4.

[0025] Specifically, the outer surfaces of the plurality of sealing blocks 9 are respectively movably sleeved with the positions close to the top of the inside of the plurality of placing grooves 7.

[0026] Specifically, the fin 2 is located at the top of the conical gear body 5.

[0027] In the production of shock-absorbing block 8, according to the weight parts, the graphene oxide 20-25 parts, polymethyl methacrylate, lime powder are mixed, the water is added in 3-5 times of the weight of the mixture, and the mixture is stirred for 10-15 minutes, and then is left for 3-4 hours to form a coagulum; according to the weight parts, the rubber is heated to 200-300°, and the high-temperature rubber material is wrapped on the surface of the coagulum formed in the above step, and then is cooled to room temperature and left for 3-4 hours to form the shock-absorbing block 8; in the installation of the shock-absorbing block 8, the surface of the shock-absorbing block 8 is heated to 60-70 temperature, and in use, the shock-absorbing block 8 is placed in the placing groove 7 and is bonded with the placing groove 7 as a whole, and when the bevel gear body 5 rotates, the vibration of the bevel gear body 5 is absorbed by the shock-absorbing block 8 and the noise generated by the bevel gear body 5 in operation is reduced, and the combination of the rubber and the graphene oxide is used to improve the shock-absorbing performance of the shock-absorbing block 8, the graphene oxide can enhance the toughness and strength of the rubber due to its high specific surface area and good mechanical properties, and the elasticity of the rubber material helps to absorb and disperse the vibration, so that the performance of the shock-absorbing block 8 can achieve the expected noise reduction effect, and by inserting the sealing block 9 into the corresponding placing groove 7, the water vapor can be prevented from entering the placing groove 7, and the noise reduction effect can be avoided, and the fin 2 is closely attached to the bevel gear body 5, which can improve the stability of the sealing block 9 and improve the heat dissipation effect of the bevel gear body 5, thereby prolonging the service life of the bevel gear body 5.

[0028] In summary, the powder metallurgy bevel gear has good elasticity and shock-absorbing performance by setting the shock-absorbing block 8, which can effectively absorb the vibration generated by the bevel gear body 8 during operation, thereby reducing the noise; through shock-absorbing and noise reduction, the operation performance of the bevel gear body 8 can be improved, and the working efficiency of the overall mechanical equipment can be improved; by setting the sealing block 9 and the fin 2, the fin 2 is closely attached to the bevel gear body 5, which can effectively conduct and dissipate the heat generated during work, and prevent the performance of the bevel gear body 5 from being reduced or damaged due to high temperature; good heat dissipation effect helps to reduce the thermal stress and wear of the bevel gear body 5, thereby prolonging the service life of the bevel gear body 5; the sealing block 9 can prevent dust, moisture and other pollutants from entering the inside of the bevel gear, thereby protecting the gear from corrosion and premature wear; the optimized setting of the fin 2 can improve the heat dissipation efficiency and reduce the additional energy consumption caused by poor heat dissipation.

[0029] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A powder metallurgical bevel gear comprising a bevel gear body (5) and a heat sink (2), characterized in that: The inside of the bevel gear body (5) is provided with an axle hole (1), the inner wall of the axle hole (1) is circularly provided with a limiting groove (6), the top of the bevel gear body (5) is circularly provided with a plurality of threaded holes (4), the top of the bevel gear body (5) is circularly provided with a plurality of placing grooves (7), a plurality of the placing grooves (7) are internally fixedly provided with damping blocks (8), the top of the radiating fin (2) is circularly provided with a plurality of bolts (3), and the bottom of the radiating fin (2) is circularly fixedly provided with a plurality of sealing blocks (9).

2. A powder metallurgy bevel gear according to claim 1, characterized in that: A plurality of the placing grooves (7) are crossly provided with a plurality of threaded holes (4).

3. A powder metallurgy bevel gear according to claim 1, characterized in that: A plurality of the bolts (3) are in threaded connection with the radiating fin (2), a plurality of the bolts (3) respectively penetrate the radiating fin (2) and are in threaded connection with the interiors of a plurality of threaded holes (4).

4. A powder metallurgy bevel gear according to claim 1, characterized in that: The outer surfaces of a plurality of the sealing blocks (9) are respectively movably sleeved with the interiors of a plurality of the placing grooves (7) near the top positions.

5. A powder metallurgy bevel gear according to claim 1, characterized in that: The radiating fin (2) is located at the top of the bevel gear body (5).

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