Transmission main speed reduction driven gear

Abstract

The utility model relates to the technical field of mechanical transmission parts, and provides a transmission main speed reduction driven gear which is not prone to abrasion and long in service life and comprises a gear body and a fixed inner cavity arranged in the gear body and used for being connected with a transmission shaft, and a plurality of meshing teeth are further fixedly arranged on the outer wall of the gear body. The meshing teeth comprise a tooth body fixedly arranged on the outer wall of the gear body, an oil liquid bin filled with lubricating oil is arranged in the tooth body, an extrusion oil outlet block is arranged on the side wall of the tooth body, and a communicating pipe for communicating the extrusion oil outlet block with the oil liquid bin is arranged between the extrusion oil outlet block and the oil liquid bin. And when the gear teeth of the driving gear are meshed with the tooth body, the extrusion oil outlet block is extruded to deform, and the oil liquid in the extrusion oil outlet block is pressed out and smeared between the tooth body and the driving gear.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission components, in particular to a transmission main reduction driven gear. Background Art

[0002] The main reducer is a mechanism in the drive axle that can change the torque and speed. Its basic function is to increase the torque from the transmission or universal joint, while reducing the speed and changing the direction of torque transmission. The main reducer is composed of one or several pairs of reduction gear pairs. The power is input by the driving gear and output through the driven gear.

[0003] The driven gear is an important part of the main reducer. The driven gear is connected to the external drive shaft to output the power input by the driving gear to the driven gear, which is then driven by the driven gear. It can transmit power with low power loss while maintaining a high meshing accuracy with the driving gear. It also has good wear resistance and a long service life.

[0004] Although the above-mentioned prior art can solve the corresponding technical problems, it still has certain defects: when the existing driven gear is installed into the output transmission shaft, the impulse gear needs to be first nested into the outer wall of the transmission shaft, and after it is clamped, it is additionally fixed by bolts. After a period of use, the lubricating oil between the driven gear and the driving gear is easy to generate heat and evaporate under the action of friction, and the lubricating oil needs to be added frequently. Otherwise, it is easy to greatly increase the friction between the driving gear and the driven gear, which makes the driven gear easy to wear and affects the service life of the driven gear. Utility Model Content

[0005] The utility model aims to provide a transmission main reduction driven gear which is not easy to wear and has a long service life in view of the defects and shortcomings of the prior art.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a transmission main reduction driven gear, including a gear body and a fixed inner cavity arranged inside the gear body for connecting the transmission shaft, the outer wall of the gear body is also fixedly provided with a plurality of meshing teeth, the meshing teeth include a tooth body fixedly arranged on the outer wall of the gear body, an oil tank filled with lubricating oil is provided in the tooth body, an extruded oil block is provided on the side wall of the tooth body, and a connecting pipe for connecting the extruded oil block with the oil tank is provided between the extruded oil block and the oil tank, when the driving gear and the driven gear are meshed and rotated, when the gear teeth of the driving gear mesh with the tooth body, the extruded oil block is squeezed to deform it and the oil inside it is hydraulically squeezed out and smeared between the tooth body and the driving gear.

[0007] A further improvement is that the extruded oil block includes a containing chamber arranged on the side wall of the tooth body and connected to the oil tank through a connecting pipe on one side, and an extrusion plate arranged on the other side of the containing chamber, and the extrusion plate is provided with a plurality of through pipes.

[0008] A further improvement is that: the top end of the tooth body is also provided with an addition pipe which is connected to the oil tank, and a sealing plug is detachably provided in the addition pipe.

[0009] A further improvement is that a torsion-resistant layer is provided inside the gear body, and a plurality of torsion cavities are provided on the torsion-resistant layer.

[0010] A further improvement is that: the gear body is also penetrated by a plurality of bolt holes.

[0011] A further improvement is that the inner wall of the fixed inner cavity is provided with a plurality of reinforcement blocks.

[0012] A further improvement is that a deformation block is provided between the extrusion disk and the accommodating chamber.

[0013] A further improvement is that a plurality of hemispherical anti-skid protrusions are arranged on the squeezed surface of the squeeze disk.

[0014] A further improvement is that a blocking block is provided in the through pipe, a blocking ball is attached to the surface of the blocking block close to the squeezed side of the squeeze disk, and an elastic sheet is provided between the outer wall of the blocking ball and the inner wall of the through pipe.

[0015] After adopting the above technical scheme, the beneficial effect of the utility model is as follows: when the utility model is in use, when the meshing teeth of the driving gear and the driven gear are in contact, they squeeze each other so that the extrusion plate of the meshing teeth is squeezed, thereby squeezing the lubricating oil in the accommodating chamber outward by pressure, so that the meshing teeth can continue to keep the lubricating oil lubricated during the meshing process, thereby reducing the friction between the driving gear and the driven gear, and there is no need to frequently add lubricating oil, thereby avoiding rapid wear of the driven gear and ensuring the service life of the driven gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in 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 described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic structural diagram of the driven gear of the utility model when viewed from the front;

[0018] Figure 2It is a structural schematic diagram of a front view cross section of a meshing tooth of the utility model;

[0019] Figure 3 It is a structural schematic diagram of a front view cross section of an oil block extruded by the utility model. DETAILED DESCRIPTION

[0020] The utility model is now further described in conjunction with the accompanying drawings and specific embodiments.

[0021] See also Figure 1-3 As shown, the technical solution adopted in this specific embodiment is: a transmission main reduction driven gear, including a gear body 1 and a fixed inner cavity 7 arranged inside the gear body 1 for connecting the transmission shaft, the outer wall of the gear body 1 is also fixedly provided with a plurality of meshing teeth 2, and eighteen are provided in this embodiment, the meshing teeth 2 include a tooth body 21 fixedly provided on the outer wall of the gear body 1, the tooth body 21 is provided with an oil tank 23 filled with lubricating oil, the side wall of the tooth body 21 is provided with an extruded oil block 25, and the extruded oil block 25 contains The invention comprises a receiving chamber 251 which is arranged on the side wall of the tooth body 21 and is connected to the oil tank 23 through a connecting pipe 24 on one side, and an extrusion plate 253 which is arranged on the other side of the receiving chamber 251. The extrusion plate 253 is provided with a plurality of through pipes 254, and four are provided in this embodiment. A connecting pipe 24 which connects the extruded oil block 25 with the oil tank 23 is provided between the extruded oil block 25 and the oil tank 23. When the driving gear and the driven gear mesh and rotate, when the gear teeth of the driving gear mesh with the tooth body 21, the extruded oil block 25 is squeezed to deform it. The oil inside is squeezed out and applied between the tooth body 21 and the driving gear. When in use, the transmission shaft is connected to the fixed inner cavity 7, and the gear body 1 is fixed on the transmission shaft with bolts, and then the driving gear and the meshing teeth 2 outside the gear body 1 are meshed and squeezed, so that the power is transmitted to drive the gear body 1 to rotate, and then the transmission shaft is rotated synchronously to transmit the power. When the driving gear squeezes the side of the tooth body 21 of the meshing teeth 2, the squeezed oil block 25 can be squeezed at the same time, so that the squeeze plate 253 of the squeezed oil block 25 is squeezed and deformed, and the oil tank 23 pushes the lubricating oil inside to the containing tank 251 through the connecting pipe 24, and then the squeeze plate 253 can squeeze the oil from the through pipe 254 after being squeezed and deformed, and overflow into the side wall of the tooth body 21, so that in the process of meshing the driving gear and the driven gear, the friction between the driving gear and the driven gear is reduced, and there is no need to frequently add lubricating oil, so as to avoid the rapid wear of the driven gear and ensure the service life of the driven gear;

[0022] The top of the tooth body 21 is also provided with a filling pipe 22 connected to the oil tank 23. A detachable sealing plug is provided in the filling pipe 22, which is conducive to adding lubricating oil to the oil tank 23 more quickly.

[0023] The gear body 1 is further provided with an anti-torsion layer 3, and the anti-torsion layer 3 is provided with a plurality of torsion cavities 4. In this embodiment, six torsion cavities 4 are provided, which is conducive to absorbing the suddenly generated torsion through the anti-torsion layer 3 and the torsion cavity 4 with slight elastic deformation, thereby making the gear body 1 not easily fall off due to too sudden large torsion;

[0024] The gear body 1 is also provided with a plurality of bolt holes 5, six of which are provided in this embodiment, so as to facilitate the installation of bolts to fix the gear body 1 and the transmission shaft;

[0025] The inner wall of the fixed inner cavity 7 is provided with a plurality of reinforcement blocks 6. In this embodiment, six reinforcement blocks are provided, which is conducive to filling the gap between the fixed inner cavity 7 and the transmission shaft through the spherical elastic reinforcement blocks 6 after being embedded in the transmission shaft, and generating greater friction to make the connection more secure;

[0026] A deformation block 252 is provided between the extrusion plate 253 and the containing chamber 251, which is conducive to increasing the internal pressure of the extrusion plate 253 after being squeezed, thereby squeezing out more lubricating oil;

[0027] The squeezed surface of the squeeze plate 253 is provided with a plurality of hemispherical anti-skid bumps 257, five of which are provided in this embodiment, so as to make the surface less likely to slip when the gears are meshed;

[0028] The through pipe 254 is provided with a blocking block 256, and a sealing ball 255 is attached to the surface of the blocking block 256 close to the squeezed side of the squeeze disk 253. An elastic sheet is provided between the outer wall of the sealing ball 255 and the inner wall of the through pipe 254, which is beneficial for sealing the through pipe 254 through the sealing ball 255 when there is no squeeze, thereby reducing the leakage of lubricating oil and extending the lubricating oil adding cycle.

[0029] Working principle of the utility model: when the utility model is used, the transmission shaft is connected to the fixed inner cavity 7, and the gear body 1 is fixed on the transmission shaft with bolts, and then the driving gear can be meshed and squeezed with the meshing teeth 2 outside the gear body 1, so as to transmit power and drive the gear body 1 to rotate, so as to make the transmission shaft rotate synchronously and transmit power. When the driving gear squeezes the side of the tooth body 21 of the meshing teeth 2, the extruded oil block 25 can be squeezed at the same time, so that the extrusion plate 253 of the extruded oil block 25 is squeezed and deformed, and the oil tank 23 promotes the lubricating oil inside the oil tank 251 through the connecting pipe 24, and then the extrusion plate 253 can squeeze the oil from the through pipe 254 after being squeezed and deformed, and overflow into the side wall of the tooth body 21, so as to reduce the friction between the driving gear and the driven gear in the process of meshing. There is no need to frequently add lubricating oil, so as to avoid the rapid wear of the driven gear and ensure the service life of the driven gear.

[0030] The utility model is intended to protect the structure of the product. The model of each component is not the content of the utility model, and it is also a known technology. Any component on the market that can achieve the above functions of the utility model can be used as a choice. Therefore, the model and other parameters of the component are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of various components.

[0031] The above shows and describes the basic principle and main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents. Anything not described in detail in the utility model is a well-known technology of those skilled in the art.

Claims

1. A transmission main reduction driven gear, comprising a gear body (1) and a fixed inner cavity (7) arranged inside the gear body (1) for connecting to a transmission shaft, wherein the outer wall of the gear body (1) is further fixedly provided with a plurality of meshing teeth (2), wherein the meshing teeth (2) include a tooth body (21) fixedly arranged on the outer wall of the gear body (1), and characterized in that: An oil tank (23) filled with lubricating oil is provided in the tooth body (21), an oil block (25) is provided on the side wall of the tooth body (21), and a connecting pipe (24) is provided between the oil block (25) and the oil tank (23) to connect the oil block (25) and the oil tank (23). When the driving gear meshes with the driven gear and rotates, the gear teeth of the driving gear mesh with the tooth body (21), squeezing the oil block (25) to deform it and pressuring the oil inside it to spread it between the tooth body (21) and the driving gear.

2. The transmission main reduction driven gear according to claim 1, characterized in that: The oil block (25) for squeezing out oil comprises a containing chamber (251) arranged on the side wall of the tooth body (21) and connected to the oil tank (23) via a connecting pipe (24) on one side, and an extrusion plate (253) arranged on the other side of the containing chamber (251), wherein a plurality of through pipes (254) are provided on the extrusion plate (253).

3. The transmission main reduction driven gear according to claim 1, characterized in that: The top end of the tooth body (21) is also provided with an addition pipe (22) which is connected to the oil tank (23), and a detachable sealing plug is provided in the addition pipe (22).

4. The transmission main reduction driven gear according to claim 1, characterized in that: An anti-torsion layer (3) is also provided in the gear body (1), and a plurality of torsion cavities (4) are provided on the anti-torsion layer (3).

5. The transmission main reduction driven gear according to claim 1, characterized in that: The gear body (1) is also provided with a plurality of bolt holes (5) extending therethrough.

6. The transmission main reduction driven gear according to claim 1, characterized in that: The inner wall of the fixed inner cavity (7) is provided with a plurality of reinforcement blocks (6).

7. The transmission main reduction driven gear according to claim 2, characterized in that: A deformation block (252) is provided between the extrusion disk (253) and the accommodating chamber (251).

8. The transmission main reduction driven gear according to claim 2, characterized in that: A plurality of hemispherical anti-slip bumps (257) are provided on the squeezed surface of the squeeze disc (253).

9. The transmission main reduction driven gear according to claim 2, characterized in that: A blocking block (256) is provided in the through pipe (254), a blocking ball (255) is attached to the surface of the blocking block (256) close to the squeezed side of the squeeze disc (253), and an elastic sheet is provided between the outer wall of the blocking ball (255) and the inner wall of the through pipe (254).

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