Low-noise spiral bevel gear

Abstract

The utility model discloses a low-noise spiral bevel gear, which relates to the field of spiral bevel gears, and comprises a bevel gear body, the top of the bevel gear body is fixedly connected with a reinforcing plate, the top of the reinforcing plate is provided with a bevel gear ring, and the top of the reinforcing plate is fixedly provided with a shock pad; a lubricating oil tank is fixedly connected to the top of the damping pad, a short rod is fixedly installed at the top of the lubricating oil tank, and a threaded rod is fixedly installed at the bottom of the bevel gear body. The top of the bevel gear ring is fixedly connected with a tooth head, the tooth head is arranged to be in an arc shape, and the bevel gear ring surrounds the periphery of the shock pad. By arranging the reinforcing plate and the tooth head, the transmission stability of the spiral bevel gear is improved, it is guaranteed that the spiral bevel gear is in low noise all the time, noise is effectively reduced, lubricating oil can be added to the spiral bevel gear by arranging the lubricating oil tank, friction and abrasion between gears are reduced, and the noise reduction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spiral bevel gears, in particular to a low-noise spiral bevel gear. Background Art

[0002] Spiral bevel gears, also known as spiral bevel gears, are often used for motion and power transmission between two intersecting shafts due to their high transmission efficiency and stable transmission ratio. They are particularly suitable for situations that require high transmission efficiency and stability, such as oil fields and petrochemical machinery.

[0003] For example, publication number CN205745175U discloses a spiral bevel gear, including a gear body, an axial hole is arranged at the center of the gear body, spiral bevel teeth are formed on the gear body, and concave grooves are formed between the spiral bevel teeth, an oxide layer is formed on the inner end surface of the concave groove, and a wear-resistant layer is formed on the outer end surface, the length of the wear-resistant layer is 25% of the length of the entire concave groove, and the length of the oxide layer is 35% of the length of the entire concave groove, a mounting column is arranged at one end of the gear body, the axial hole extends to the outer end surface of the mounting column, and a plurality of key slots are opened on the mounting column. The spiral bevel gear structure The structure is simple and the design is reasonable. By providing a wear-resistant layer and an oxide layer, its wear resistance can be improved. By providing a mounting column through integral molding and opening a plurality of key slots on the mounting column, its installation stability can be improved. However, the spiral bevel gear has other shortcomings when in use. First, a chamfer is provided on the gear tooth portion, which makes the transmission of the spiral bevel gear unstable when in use, the working clearance is large, and the gears are prone to noise when mating. It is also impossible to add lubricating oil to the spiral bevel gear. Long-term use increases the friction and wear between the gears, and is prone to noise. Therefore, there are still certain shortcomings when using the device. Utility Model Content

[0004] The purpose of the utility model is to provide a low-noise spiral bevel gear to solve the problem raised in the above background technology that the spiral bevel gears currently on the market are prone to unstable transmission, large working clearance, and easy to generate noise when the gears are mated due to the chamfers on the gear teeth. In addition, the spiral bevel gears cannot be lubricated, and long-term use increases friction and wear between gears, which easily generates noise.

[0005] To achieve the above object, the utility model provides the following technical solution: a low-noise spiral bevel gear, comprising a bevel gear body, a reinforcing plate fixedly connected to the top of the bevel gear body, a bevel gear ring arranged on the top of the reinforcing plate, and a shock-absorbing pad fixedly installed on the top of the reinforcing plate;

[0006] The top of the shock-absorbing pad is fixedly connected with a lubricating oil tank, the top of the lubricating oil tank is fixedly installed with a short rod, and the bottom of the bevel gear body is fixedly installed with a threaded rod;

[0007] A tooth head is fixedly connected to the top of the bevel gear ring, and the tooth head is arranged in an arc shape. The bevel gear ring surrounds the periphery of the shock absorbing pad.

[0008] Furthermore, the reinforcing plate is configured to be made of alloy, and the reinforcing plate and the bevel gear ring are tightly fitted.

[0009] Furthermore, the tooth shape of the bevel gear ring gradually decreases from the large end to the small end, and an inclined surface is provided on the inner end face of the bevel gear ring, and the angle between the inclined surface and the vertical surface is sixteen to nineteen degrees.

[0010] Furthermore, a plurality of grooves are provided inside the shock-absorbing pad, and the grooves are on the same horizontal line as the bevel gear ring.

[0011] Furthermore, a through hole is provided at the top of one side of the lubricating oil tank, a screw plug is passed through the through hole, and a plurality of oil outlet holes are provided on the outer wall of the lubricating oil tank.

[0012] Furthermore, an internal thread is provided inside the through hole, and the screw plug is detachably connected to the through hole via the internal thread.

[0013] Furthermore, the oil outlet hole is communicated with the groove, and the groove and the shock-absorbing pad are integrated.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The low-noise spiral bevel gear increases the stability of the spiral bevel gear transmission by setting a reinforcement plate and a tooth head, ensuring that the spiral bevel gear is always in a low-noise state, thereby effectively reducing the noise generation, and is provided with a lubricating oil tank to add lubricating oil to the spiral bevel gear, reduce friction and wear between gears, and increase the noise reduction effect. The specific contents are shown below:

[0016] 1. A reinforcing plate is provided. The reinforcing plate is made of alloy, which has high strength, high thermal strength and good corrosion resistance, etc., and strengthens the strength of the bevel gear ring connecting the bevel gear body, thereby increasing the stability of the bevel gear transmission;

[0017] Furthermore, a tooth head is provided, and the tooth head connected by the bevel gear ring is provided with an arc shape, which has a large arc overlap coefficient, high load-bearing capacity, smooth transmission, compact structure, wear resistance and low noise, ensuring that the spiral bevel gear is always in low noise, thereby effectively reducing the generation of noise;

[0018] 2. A lubricating oil tank is provided. During the transmission process of the bevel gear body connected to the bevel gear ring through the reinforcing plate, the lubricating oil in the lubricating oil tank flows out through a number of oil outlet holes and enters the tooth surface of the bevel gear ring through the corresponding grooves, so that the lubricating oil forms an oil film when the bevel gear ring is meshed, which plays a lubricating role, reduces the friction and wear between the gears, and thus increases the noise reduction effect;

[0019] Furthermore, a screw plug is provided, and a worker manually rotates the screw plug counterclockwise to make the screw plug and the internal thread in the through hole threadably rotate, thereby turning out the screw plug, and then adding the lubricating oil into the lubricating oil tank through the through hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the top view structure of the utility model;

[0022] Figure 3 This is a partial structural diagram of the bevel gear body of the utility model;

[0023] Figure 4 It is a schematic diagram of the partial structure of the bevel gear body and bevel gear ring of the utility model;

[0024] Figure 5 This is a partial enlarged structural diagram of the bevel gear ring and lubricating oil tank of the utility model;

[0025] Figure 6 This is a schematic diagram of the partial structure of the lubricating oil tank of the utility model;

[0026] Figure 7 For this utility model Figure 1 Enlarged structural diagram at A in the middle.

[0027] In the figure: 1. bevel gear body; 2. reinforcement plate; 3. bevel gear ring; 4. tooth head; 5. shock-absorbing pad; 6. groove; 7. lubricating oil tank; 8. through hole; 9. screw plug; 10. oil outlet hole; 11. short rod; 12. threaded rod. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 7 , the utility model provides the following technical solutions:

[0030] Embodiment 1: In order to solve the problem that the spiral bevel gears on the market are prone to unstable transmission, large working clearance, and noise when the gears are mated, due to the chamfer on the gear teeth, the spiral bevel gears on the market are prone to unstable transmission, large working clearance, and noise when the gears are mated. In addition, the spiral bevel gears cannot be lubricated, and the friction and wear between the gears are increased after long-term use, which is prone to noise. Please refer to the attached Figure 1 -Attached Figure 4 and attached Figure 6 -Attached Figure 7 , including a bevel gear body 1, a reinforcing plate 2 is fixedly connected to the top of the bevel gear body 1, a bevel gear ring 3 is arranged on the top of the reinforcing plate 2, a shock-absorbing pad 5 is fixedly installed on the top of the reinforcing plate 2; a tooth head 4 is fixedly connected to the top of the bevel gear ring 3, the tooth head 4 is arranged in an arc shape, and the bevel gear ring 3 surrounds the outer periphery of the shock-absorbing pad 5. The reinforcing plate 2 is arranged to be made of alloy, and the reinforcing plate 2 and the bevel gear ring 3 are tightly fitted. The tooth shape of the bevel gear ring 3 is gradually reduced from the large end to the small end, and an inclined surface is arranged on the inner end face of the bevel gear ring 3, and the angle between the inclined surface and the vertical surface is sixteen to nineteen degrees. A plurality of grooves 6 are opened inside the shock-absorbing pad 5, and the grooves 6 and the bevel gear ring 3 are on the same horizontal line. By setting the reinforcing plate 2 to be made of an alloy with high strength, high thermal strength and good corrosion resistance, the strength of the bevel gear ring 3 connecting the bevel gear body 1 is strengthened, thereby increasing the stability of the spiral bevel gear transmission, and at the same time, the tooth head 4 connected to the bevel gear ring 3 is set in an arc shape, with a large arc overlap coefficient, high load-bearing capacity, smooth transmission, compact structure, wear resistance and low noise, ensuring that the spiral bevel gear is always in low noise, thereby effectively reducing the generation of noise.

[0031] Embodiment 2: Lubricating oil can be added to the spiral bevel gear to reduce friction and wear between gears and increase noise reduction effect. Figure 1 -Attached Figure 6The top of the shock-absorbing pad 5 is fixedly connected with a lubricating oil tank 7, a short rod 11 is fixedly installed on the top of the lubricating oil tank 7, and a threaded rod 12 is fixedly installed on the bottom of the bevel gear body 1; a through hole 8 is opened on the top of one side of the lubricating oil tank 7, a screw plug 9 is passed through the inside of the through hole 8, and a plurality of oil outlet holes 10 are opened on the outer wall of the lubricating oil tank 7. The inside of the through hole 8 is provided with an internal thread, and the screw plug 9 is connected to the through hole 8 through the internal thread for disassembly. The oil outlet hole 10 is connected to the groove 6, and the groove 6 and the shock-absorbing pad 5 are integrated. The staff manually rotates the screw plug 9 counterclockwise to make the screw plug 9 and the internal thread in the through hole 8 threadedly rotate, thereby turning out the screw plug 9, and then add the lubricating oil into the lubricating oil tank 7 through the through hole 8, so that the bevel gear body 1 is connected to the bevel gear ring 3 through the reinforcing plate 2 during the transmission process. The lubricating oil in the lubricating oil tank 7 flows out through a plurality of oil outlet holes 10 and passes through the corresponding grooves 6 into the tooth surface of the bevel gear ring 3, so that the lubricating oil forms an oil film when the bevel gear ring 3 is meshed, which plays a lubricating role, reduces the friction and wear between the gears, and thus increases the noise reduction effect.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-noise spiral bevel gear, comprising a bevel gear body (1), a reinforcing plate (2) fixedly connected to the top of the bevel gear body (1), a bevel gear ring (3) arranged on the top of the reinforcing plate (2), and a shock-absorbing pad (5) fixedly installed on the top of the reinforcing plate (2); Features: The top of the shock-absorbing pad (5) is fixedly connected to a lubricating oil tank (7), the top of the lubricating oil tank (7) is fixedly mounted with a short rod (11), and the bottom of the bevel gear body (1) is fixedly mounted with a threaded rod (12); A tooth head (4) is fixedly connected to the top of the bevel gear ring (3); the tooth head (4) is arranged in an arc shape; and the bevel gear ring (3) surrounds the periphery of the shock absorbing pad (5).

2. A low-noise spiral bevel gear according to claim 1, characterized in that: The reinforcing plate (2) is configured to be made of alloy, and the reinforcing plate (2) and the bevel gear ring (3) are tightly fitted.

3. A low-noise spiral bevel gear according to claim 1, characterized in that: The tooth shape of the bevel gear ring (3) gradually decreases from the large end to the small end, and an inclined surface is provided on the inner end surface of the bevel gear ring (3), and the angle between the inclined surface and the vertical surface is sixteen to nineteen degrees.

4. A low-noise spiral bevel gear according to claim 1, characterized in that: A plurality of grooves (6) are provided inside the shock-absorbing pad (5), and the grooves (6) are on the same horizontal line as the bevel gear ring (3).

5. A low-noise spiral bevel gear according to claim 1, characterized in that: A through hole (8) is provided at the top of one side of the lubricating oil tank (7), a screw plug (9) passes through the through hole (8), and a plurality of oil outlet holes (10) are provided on the outer wall of the lubricating oil tank (7).

6. A low-noise spiral bevel gear according to claim 5, characterized in that: The through hole (8) is provided with an internal thread inside, and the screw plug (9) is connected to the through hole (8) via the internal thread for disassembly.

7. A low-noise spiral bevel gear according to claim 1, characterized in that: The oil outlet hole (10) is communicated with the groove (6), and the groove (6) and the shock-absorbing pad (5) are integrally arranged.

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