CN215806178U

CN215806178U - Novel gearbox

Info

Publication number: CN215806178U
Application number: CN202122194904.0U
Authority: CN
Inventors: 孙忠祥
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-11
Filing date: 2021-09-11
Publication date: 2022-02-11
Anticipated expiration: 2031-09-11

Abstract

The utility model discloses a novel gearbox.A spiral bevel gear is fixedly arranged on an input shaft, the spiral bevel gear is in meshing transmission connection with a sliding gear, the sliding gear is fixedly arranged on an output shaft, and the axes of the input shaft and the output shaft are mutually vertical; the output shaft is rotatably arranged on a moving device, the moving direction of the moving device is parallel to the axis of the input shaft, one end of the output shaft is provided with a universal joint, one end of the universal joint is fixedly connected with a bevel gear, and the bevel gear is used as power input and connected with a differential mechanism; the sliding gear can be adjusted to be meshed with the spiral bevel gear according to the working condition through the movement of the moving device, the linear change of the transmission ratio is realized, the speed change is stable without pause and frustration, and the device has the advantages of simple structure, easiness in manufacturing, low cost and easiness in maintenance; the gearbox simplifies complex gear transmission, has high transmission efficiency and better fuel economy; the gear shifting and speed changing can be conveniently realized by controlling the rotating speed of a motor or a hydraulic motor in the moving device, and the automatic control is easy to realize.

Description

Novel gearbox

Technical Field

The utility model relates to the technical field of transmissions, in particular to a novel gearbox.

Background

The speed changing box is a device for changing the speed ratio and the moving direction, is used on automobiles, tractors, ships, machine tools and various machines, and is used for changing the torque, the rotating speed and the moving direction transmitted from a driving shaft to a driven shaft according to different working conditions.

The automatic gearbox is the mainstream internationally AT present, and the automatic gearbox mainly comprises AT, AMT, CVT, DCT and the like.

The early-stage transmission system of the AT transmission takes 4AT as a main part and develops in multiple directions, such as 6AT and 8 AT. AT has the characteristics of smooth gear shifting, good comfort, strong power transmission capability and the like, but has poor fuel economy and high manufacturing cost.

The AMT is based on a traditional manual transmission, only changes a manual operation part, and realizes automatic gear shifting through an electronic control automatic control system. The AMT has simple structure, low cost and good fuel economy, but has poor comfort and large automation control difficulty.

The CVT is a truly stepless transmission, has the advantages of few parts, small volume, high efficiency and low oil consumption, and can be matched on a hybrid electric vehicle as a power coupling and transmission. But has the disadvantages of complex manufacture, large investment, easy damage of the transmission belt, short service life and the like.

The DCT employs a two clutch configuration and the shift process is similar to AT. The DCT inherits the advantages of good fuel economy, high quality and the like of the manual transmission, does not have power interruption in the gear shifting process, and has good gear shifting comfort. However, the structure is complex, the manufacturing process requirement is high, and when the gear needing to be switched is not in a preparation state, the gear shifting time is relatively long. Therefore, a novel gearbox is provided to solve the problems of the gearbox.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a novel gearbox to solve the problems set forth in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel gearbox comprises an input shaft and an output shaft, wherein spiral bevel teeth are fixedly arranged on the input shaft, the spiral bevel teeth are in meshing transmission connection with a sliding gear, the sliding gear is fixedly arranged on the output shaft, and the axes of the input shaft and the output shaft are mutually vertical;

the output shaft is rotatably installed on a moving device, the moving direction of the moving device is parallel to the axis of the input shaft, two universal joints are arranged at one end of the output shaft, a telescopic spline shaft is connected between the two universal joints, the tail end of the universal joint is fixedly connected with a bevel gear, and the bevel gear is used as power input and connected with a differential mechanism.

Preferably, the output shaft is mounted on the support frame through a bearing, the bottom of the support frame is slidably mounted on a slide rail, the slide rail is fixedly arranged on a shell of the gearbox, a screw rod nut is arranged at the bottom of the support frame, the screw rod nut is mounted on a screw rod, one end of the screw rod is connected with a driving device, and the screw rod is mounted on the shell of the gearbox through the bearing, so that the functions of speed change and fixation are achieved.

Preferably, the driving device is an electric motor or a hydraulic motor.

Preferably, the sliding gear and the universal joint are fixedly mounted on the output shaft through splines.

Has the advantages that: compared with the prior art, the utility model has the beneficial effects that: the motor or the hydraulic motor drives the moving device to enable the sliding gear to adjust the meshing position with the spiral bevel gear according to the working condition, and the radius of the spiral bevel gear in the axial direction changes linearly, so that the transmission ratio can change linearly in the moving process of the sliding gear, the speed change is stable without pause and frustration, and the gearbox is simple in structure, easy to manufacture, low in cost, easy to maintain and suitable for popularization and use; the gearbox simplifies complex gear transmission, has high transmission efficiency and better fuel economy; the gear shifting and speed changing can be conveniently realized by controlling the rotation direction and the rotating speed of the motor or the hydraulic motor in the moving device, and the automatic control is easy to realize.

Drawings

Fig. 1 is a schematic diagram of a transmission structure of a novel transmission provided by the utility model.

Fig. 2 is a schematic view of the meshing transmission of the spiral bevel gear and the sliding gear.

In the drawings: 1-input shaft, 2-spiral bevel gear, 3-sliding gear, 4-output shaft, 5-universal joint, 6-bevel gear, 7-telescopic spline shaft, 8-support frame, 9-slide rail, 10-screw nut, 11-screw and 12-differential basin gear.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Examples

Referring to the attached drawings in the specification, in the embodiment of the utility model, a novel gearbox comprises an input shaft 1 and an output shaft 4, wherein spiral bevel gears 2 are fixedly arranged on the input shaft 1, the spiral bevel gears 2 are in meshing transmission connection with sliding gears 3, the sliding gears 3 are fixedly arranged on the output shaft 4, and the axes of the input shaft 1 and the output shaft 4 are mutually vertical;

the output shaft 4 is rotatably installed on a moving device, the moving direction of the moving device is parallel to the axis of the input shaft 1, two universal joints 5 are arranged at one end of the output shaft 4, a telescopic spline shaft 7 is connected between the two universal joints 5, the universal joint 5 at the tail end is fixedly connected with a bevel gear 6, and the bevel gear 6 is used as power input and connected with a differential mechanism.

Furthermore, the output shaft 4 is mounted on the support frame 8 through a bearing, the bottom of the support frame 8 is slidably mounted on a slide rail 9, the slide rail 9 is fixedly arranged on a shell of the gearbox, a lead screw nut 10 is arranged at the bottom of the support frame 8, the lead screw nut 10 is mounted on a lead screw 11, one end of the lead screw 11 is connected with a driving device, and the lead screw 11 is mounted on the shell of the gearbox through a bearing to play roles of speed change and fixation.

Further, the driving device is an electric motor or a hydraulic motor.

Further, the sliding gear 3 and the universal joint 5 are fixedly mounted on the output shaft 4 through splines.

In the description of the present invention, it should be noted that the sliding gears 3 can be installed in a vertically symmetrical manner, and two sliding gears can transmit larger torque.

The gearbox provided by the utility model can be applied to various occasions such as automobiles, trucks, agricultural vehicles, loaders, bulldozers, harvesters, water sprinklers and the like, and the gearbox is not limited to a specific application occasion.

The use process comprises the following steps:

when the differential is used, the power of an engine is input through the input shaft 1, and is output to the differential through the output shaft 4, the universal joint 5 and the bevel gear 6 through the meshing transmission between the spiral bevel gear 2 and the sliding gear 3 so as to drive wheels to rotate.

In the process, the motor or the hydraulic motor drives the moving device to enable the sliding gear to adjust the meshing position with the spiral bevel gear according to the working condition, and the radius of the spiral bevel gear in the axial direction changes linearly, so that the transmission ratio can change linearly in the moving process of the sliding gear, the speed change is stable without pause and frustration, and the gearbox has the advantages of simple structure, easiness in manufacturing, low cost, easiness in maintenance and suitability for popularization and use; the gearbox simplifies complex gear transmission, has high transmission efficiency and better fuel economy; the gear shifting and speed changing can be conveniently realized by controlling the steering and rotating speed of a motor or a hydraulic motor in the moving device, and the automatic control is easy to realize; the application has the advantages of simple structure, strong practicability and simple operation and is worth popularizing.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several variations and modifications without departing from the concept of the present invention, and these should be considered as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the utility of the patent.

Claims

1. A novel gearbox is characterized in that: the gear transmission mechanism comprises an input shaft (1) and an output shaft (4), wherein spiral bevel teeth (2) are fixedly arranged on the input shaft (1), the spiral bevel teeth (2) are in meshing transmission connection with a sliding gear (3), the sliding gear (3) is fixedly arranged on the output shaft (4), and the axes of the input shaft (1) and the output shaft (4) are mutually vertical;

the output shaft (4) is rotatably installed on a moving device, the moving direction of the moving device is parallel to the axis of the input shaft (1), two universal joints (5) are arranged at one end of the output shaft (4), a telescopic spline shaft (7) is connected between the two universal joints (5), the universal joint (5) at the tail end is fixedly connected with a bevel gear (6), and the bevel gear (6) is used as a power input connection differential mechanism.

2. The new transmission according to claim 1, characterized in that: the moving device comprises a support frame (8), the output shaft (4) is installed on the support frame (8) through a bearing, the bottom of the support frame (8) is slidably installed on a sliding rail (9), the sliding rail (9) is fixedly arranged on a shell of the gearbox, a screw nut (10) is arranged at the bottom of the support frame (8), the screw nut (10) is installed on a screw rod (11), and one end of the screw rod (11) is connected with a driving device.

3. A novel transmission as claimed in claim 2, wherein: the driving device is an electric motor or a hydraulic motor.

4. The new transmission according to claim 1, characterized in that: the sliding gear (3) and the universal joint (5) are fixedly arranged on the output shaft (4) through splines.