Reverse gear of gearbox

Abstract

The reverse gear of the gearbox is simple in structure and has a damping effect and comprises a gear body and gear teeth arranged on the gear body, damping grooves are symmetrically formed in the two ends of the side face of each gear tooth, and a first damping pad and a second damping pad are arranged on the inner walls of the damping grooves respectively. A plurality of elastic shock absorption columns are arranged between the first shock absorption pad and the second shock absorption pad, and elastic pieces are arranged on the shock absorption columns.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear technology field, especially a gearbox reverse gear. BACKGROUND

[0002] The transmission is huge for a car, simply speaking, there are multiple gear pairs with different transmission ratios in the gearbox, and the gear shifting behavior when the car is running is that different gear pairs in the gearbox work through the control mechanism, such as allowing the gear pair with large transmission ratio to work at low speed, and allowing the gear pair with small transmission ratio to work at high speed.

[0003] The transmission housing has multiple gears to transmit different speed ratios, but when the car needs to reverse, merely changing the speed ratio cannot achieve the purpose of reversing the car, therefore, the transmission housing has a reverse idler and a reverse gear, the reverse idler is a gear that transmits between two transmission gears that do not contact each other, and one of the transmission gears is the reverse gear, which is in an idle state of long-term engagement with the reverse idler, when it needs to work, the reverse gear is engaged with a sliding gear on the same shaft, thereby driving the sliding gear to rotate and work.

[0004] However, when the reverse gear works, it will collide with other gears, causing the gears to be easily damaged and broken, which is not conducive to long-term use of the gears.

[0005] To solve this problem, the utility model is produced. UTILITY MODEL CONTENTS

[0006] Therefore, in view of the above problems, the utility model provides a gearbox reverse gear with simple structure and shock absorption effect.

[0007] To solve the above technical problems, the utility model adopts the following solution: a gearbox reverse gear, comprising a gear body, gear teeth provided on the gear body, a damping groove is symmetrically provided at both ends of the side surface of the gear teeth, a first damping pad and a second damping pad are respectively provided on the inner wall of the damping groove, a plurality of elastic damping columns are provided between the first damping pad and the second damping pad, and an elastic member is provided on the damping column.

[0008] Further improvement is that the elastic member is a spring, the spring is sleeved on the damping column, one end of the spring abuts against the first damping pad, and the other end of the spring abuts against the second damping pad.

[0009] Further improvement is that a groove is provided around the gear body, and a third damping pad is provided in the groove.

[0010] Further improvement is that: the gear body is provided with a containing cavity around, a first channel for lubricating oil is provided on the gear body and communicated with the containing cavity, and a second channel for lubricating oil is provided on the gear teeth and the gear groove.

[0011] Further improvement is that: the first channel is provided with an oil inlet one-way valve, so that the lubricating oil can only flow from the oil inlet channel to the containing cavity, and the second channel is provided with an oil outlet one-way valve, so that the lubricating oil can only flow from the containing cavity to the second channel.

[0012] By adopting the foregoing technical scheme, the utility model has the advantages of:

[0013] The structure is simple, has a damping effect, and can improve the service life. When the gear is engaged or collides, the first damping pad and the second damping pad can absorb the impact and then the damping column and the spring can further buffer, so that the gear teeth are not easy to crack or damage when the gear is impacted. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a schematic view of a gearbox reverse gear structure according to an embodiment of the utility model.

[0015] Figure 2 is an enlarged schematic view of A according to an embodiment of the utility model.

[0016] Figure 3 is a schematic view of a gearbox reverse gear structure according to an embodiment of the utility model.

[0017] Figure 4 is a schematic view of a gearbox reverse gear structure according to an embodiment of the utility model. DETAILED DESCRIPTION

[0018] The utility model will be further described in combination with the drawings and specific embodiments.

[0019] Reference Figures 1-4 The utility model discloses a gearbox reverse gear, including gear body 1, the gear tooth 2 of being located on gear body 1, the gear tooth 2 side two ends symmetry are provided with damping groove 5, the damping groove 5 inner wall is equipped with first damping pad 6 and second damping pad 8 respectively, a plurality of elastic damping columns 7 are equipped between first damping pad 6 and second damping pad 8, the damping column 7 is equipped with spring 9, the spring 9 is sleeved on the damping column 7, and the spring 9 one end is opposite with first damping pad 6, and the spring 9 other end is opposite with second damping pad 8.

[0020] In order to further improve the damping effect, thereby protecting the gear, prolong the service life of the gear, the gear body 1 is provided with a groove 3, the third damping pad 4 is arranged in the groove 3.

[0021] Preferably, the first damping pad 6, the second damping pad 8 and the third damping pad 4 are made of rubber material.

[0022] When the gear is engaged or collided, the first damping pad 6 and the second damping pad 8 can absorb the impact and the damping column 7 and the spring 9 can further buffer, thereby better damping, so that the gear teeth 2 are not easy to crack or damage when the gear is impacted.

[0023] In order to improve the lubricating effect between the gears, the gear body 1 is provided with a containing cavity 10, the gear body 1 is provided with a first channel 12 for entering lubricating oil, the gear teeth 2 and the gear tooth groove are provided with a second channel 11 for discharging lubricating oil. When the gear rotates, the lubricating oil can flow out from the first channel 11, thereby lubricating between the gears, thereby improving the lubricating effect, reducing the wear between the gears, further prolonging the service life of the gear. When the lubricating oil flows out, it can flow into the containing cavity 10 from the first channel 12 to supplement.

[0024] In order to better enter and discharge oil, the first channel 12 is provided with an oil inlet one-way valve, so that the lubricating oil can only flow from the oil inlet channel to the containing cavity 10, and the first channel 11 is provided with an oil outlet one-way valve 12, so that the lubricating oil can only flow from the containing cavity 10 to the second channel 11.

[0025] The above shows and describes the basic principles and main features of the utility model and its advantages, and the person skilled in the art should understand that the utility model is not limited by the above examples, the above examples and the description described in the description are only to illustrate the principle of the utility model, without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, these changes and improvements all fall within the scope of the utility model claimed, the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A reverse gear for a gearbox, comprising a gear body, a tooth provided on the gear body, characterized in that: The shock-absorbing grooves are symmetrically arranged at both ends of the tooth flanks, and the inner walls of the shock-absorbing grooves are respectively provided with first and second shock-absorbing pads.

2. A reverse gear for a gearbox according to claim 1, characterised in that: The elastic member is a spring, which is sleeved on the shock-absorbing column, one end of the spring abuts against the first shock-absorbing pad, and the other end of the spring abuts against the second shock-absorbing pad.

3. A reverse gear for a gearbox as claimed in claim 1, characterised in that: The gear body is provided with a groove, and the groove is provided with a third shock-absorbing pad.

4. A reverse gear for a gearbox as claimed in claim 1, characterised in that: The gear body is provided with a receiving cavity, the gear body is provided with a first channel for lubricating oil, the tooth flanks and the tooth grooves of the gear are provided with a second channel for lubricating oil.

5. A reverse gear for a gearbox as claimed in claim 1, characterised in that: The first channel is provided with an oil inlet one-way valve, so that the lubricating oil can only flow from the oil inlet channel to the receiving cavity, and the second channel is provided with an oil outlet one-way valve, so that the lubricating oil can only flow from the receiving cavity to the second channel.

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