CN215806202U

CN215806202U - Five-gear small-sized gear transmission

Info

Publication number: CN215806202U
Application number: CN202122207287.3U
Authority: CN
Inventors: 冯建锋
Original assignee: Jiangsu Jiashuo Machinery Technology Co ltd
Current assignee: Jiangsu Jiashuo Machinery Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-02-11
Anticipated expiration: 2031-09-13

Abstract

The utility model belongs to the technical field of transmissions, in particular to a five-gear small gear transmission, which aims at solving the problem of troublesome gear disassembly in the background technology and provides the following scheme. The utility model can separate the gear from the output shaft, the declutch shift shaft and the input shaft by pressing the pressure lever downwards, has simple structure and convenient operation, is convenient for replacing and maintaining the gear, is provided with the damping mechanism outside the box body, realizes the transverse and vertical damping of the box body under the interaction of the second spring and the third spring, and greatly improves the installation stability of the transmission.

Description

Five-gear small-sized gear transmission

Technical Field

The utility model relates to the technical field of transmissions, in particular to a five-gear small gear transmission.

Background

A transmission is a mechanism for changing the speed and torque from an engine, which can change the ratio of the output shaft to the input shaft, either fixed or in steps, also known as a gearbox. The speed variator consists of speed-changing transmission mechanism and control mechanism, and some vehicles also have power output mechanism. The transmission mechanism is mainly driven by common gears and also driven by planetary gears. The common gear transmission mechanism generally uses a sliding gear, a synchronizer and the like.

After the transmission works for a period of time, gears on the input shaft, the output shaft and the shifting fork shaft need to be maintained and replaced due to abrasion, but the common transmission has a complex structure, the gear is troublesome to disassemble, and meanwhile, the normal use of the transmission can be influenced by severe vibration generated in the running process of equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a five-gear small gear transmission.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a five-gear small-sized gear transmission comprises a box body, wherein an output shaft, a shifting fork shaft and an input shaft are rotatably connected to the inner wall of the box body, and replacement mechanisms are arranged on the inner walls of the output shaft, the shifting fork shaft and the input shaft and comprise a pressure rod, a connecting rod, a top rod and a first spring, the pressure rod is connected to the outer wall of the bottom of the pressure rod, the top rod is connected to the outer wall of the top of the connecting rod, and the first spring is connected to the outer wall of the bottom of the connecting rod;

the box outer wall is provided with damper, and damper is including welding connecting plate, the locating lever of locating on the connecting plate top outer wall of symmetric distribution on the box outer wall, cover, connect second spring on connecting plate one side outer wall, set up in the outside third spring of box.

Preferably, the outer wall of one end of the second spring is connected with a damping frame, the outer wall of the top of the damping frame is provided with symmetrically distributed limiting grooves, and the inner diameter of each limiting groove is matched with the outer diameter of the positioning rod.

Preferably, the end, far away from the shock attenuation frame, of the third spring is connected with the base, and the outer wall of the bottom of the shock attenuation frame is placed on the inner wall of the bottom of the base.

Preferably, a gear lever is installed on the outer wall of the shifting fork shaft, and a gear is arranged on the outer wall of the top of the box body.

Preferably, the outer wall of one end of the input shaft is connected with an output motor through a coupler, and the outer wall of the bottom of the output motor is connected to the outer wall of one side of the box body through a fixing plate.

The utility model has the beneficial effects that:

1. according to the five-gear small-sized gear transmission, the replacement mechanisms are arranged in the output shaft, the shifting fork shaft and the input shaft, and the gear can be separated from the output shaft, the shifting fork shaft and the input shaft by pressing the pressing rod downwards, so that the five-gear small-sized gear transmission is simple in structure and convenient to operate, and replacement and maintenance of the gear are facilitated;

2. this five grades of small-size gear transmissions of design has set up damper in the outside of box, under the interact of second spring and third spring, has realized the horizontal and vertical shock attenuation that gets of box, has improved the stability of derailleur installation greatly.

Drawings

FIG. 1 is a front view of the overall structure of a five speed miniature gear transmission according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a case of a five-speed small gear transmission according to the present invention;

fig. 3 is a schematic diagram of an exchange mechanism of a five-gear small gear transmission provided by the utility model.

In the figure: the device comprises a box body 1, an output shaft 2, a shifting fork shaft 3, an input shaft 4, a replacement mechanism 5, a pressure lever 51, a connecting rod 52, a push rod 53, a first spring 54, a damping mechanism 6, a connecting plate 61, a positioning rod 62, a second spring 63, a third spring 64, a damping frame 7, a base 8, a gear shift lever 9, a 10 gear and an output motor 11.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-3, a five-gear small gear transmission comprises a box body 1, wherein an output shaft 2, a shifting fork shaft 3 and an input shaft 4 are rotatably connected to the inner wall of the box body 1, and replacement mechanisms 5 are arranged on the inner walls of the output shaft 2, the shifting fork shaft 3 and the input shaft 4, each replacement mechanism 5 comprises a pressure lever 51, a connecting rod 52, a push rod 53 and a first spring 54, the connecting rod 52 is connected to the outer wall of the bottom of the pressure lever 51, the push rod 53 is connected to the outer wall of the top of the connecting rod 52, the first spring 54 is connected to the outer wall of the bottom of the connecting rod 52, the replacement mechanisms 5 are arranged in the output shaft 2, the shifting fork shaft 3 and the input shaft 4, and a gear can be separated from the output shaft 2, the shifting fork shaft 3 and the input shaft 4 by pressing the pressure lever 51 downwards, so that the structure is simple, the operation is convenient, and the replacement and the maintenance of the gear are facilitated;

the damping mechanism 6 is arranged on the outer wall of the box body 1, the damping mechanism 6 comprises a connecting plate 61, a positioning rod 62, a second spring 63 and a third spring 64, the positioning rod 62 is sleeved on the outer wall of the top of the connecting plate 61, the second spring 63 is connected to the outer wall of one side of the connecting plate 61, the third spring 64 is arranged outside the box body 1, the damping mechanism 6 is arranged outside the box body 1, and under the interaction of the second spring 63 and the third spring 64, transverse and vertical damping of the box body 1 is realized, and the mounting stability of the transmission is greatly improved;

second spring 63 one end outer wall is connected with shock attenuation frame 7, and shock attenuation frame 7 top outer wall sets up the spacing groove of symmetric distribution, spacing inslot diameter and 62 external diameter looks adaptations of locating lever, the one end that shock attenuation frame 7 was kept away from to third spring 64 is connected with base 8, and shock attenuation frame 7 bottom outer wall places on base 8's bottom inner wall, shift lever 9 is installed to 3 outer walls of declutch shift shaft, and 1 top outer wall of box is provided with

gear

10, 4 one end outer walls of input shaft have output motor 11 through the coupling joint, and output motor 11 bottom outer wall passes through the fixed plate and connects on one side outer wall of box 1.

The working principle is as follows: the output motor 11 drives the input shaft 4 to rotate, the gear shift lever 9 moves in the gear position 10, the rotating speed change of the output shaft 2 can be realized, when the gears on the output shaft 2, the shifting fork shaft 3 and the input shaft 4 need to be maintained and replaced, the pressing rod 51 can be pressed downwards, the pressing rod 51 can drive the ejector rod 53 on the connecting rod 52 to move downwards, so that the gears are separated from the output shaft 2, the shifting fork shaft 3 and the input shaft 4, the damping mechanism 6 is arranged outside the box body 1, the second spring 63 is used for preventing vertical vibration, and the third spring 64 is used for preventing transverse vibration, so that the stable work of the transmission is ensured.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A five-gear small-sized gear transmission comprises a box body (1) and is characterized in that an output shaft (2), a shifting fork shaft (3) and an input shaft (4) are rotatably connected to the inner wall of the box body (1), replacement mechanisms (5) are arranged on the inner walls of the output shaft (2), the shifting fork shaft (3) and the input shaft (4), each replacement mechanism (5) comprises a pressure lever (51) connected to the inner walls of the output shaft (2), the shifting fork shaft (3) and the input shaft (4) in a sliding manner, a connecting rod (52) connected to the outer wall of the bottom of the pressure lever (51), a push rod (53) connected to the outer wall of the top of the connecting rod (52) and a first spring (54) connected to the outer wall of the bottom of the connecting rod (52);

the damping mechanism (6) is arranged on the outer wall of the box body (1), and the damping mechanism (6) comprises a connecting plate (61) welded on the outer wall of the box body (1) and symmetrically distributed, a positioning rod (62) sleeved on the outer wall of the top of the connecting plate (61), a second spring (63) connected to the outer wall of one side of the connecting plate (61), and a third spring (64) arranged outside the box body (1).

2. The five-gear small-sized gear transmission according to claim 1, wherein the outer wall of one end of the second spring (63) is connected with a damping frame (7), the outer wall of the top of the damping frame (7) is provided with symmetrically distributed limiting grooves, and the inner diameter of each limiting groove is matched with the outer diameter of the positioning rod (62).

3. The five-gear small-sized gear transmission is characterized in that one end of the third spring (64) far away from the shock absorption frame (7) is connected with the base (8), and the outer bottom wall of the shock absorption frame (7) is placed on the inner bottom wall of the base (8).

4. A five-speed small gear transmission according to claim 1, characterized in that the shift rod (9) is mounted on the outer wall of the shift fork shaft (3), and the outer wall of the top of the box body (1) is provided with the gear (10).

5. The five-gear small-sized gear transmission is characterized in that the outer wall of one end of the input shaft (4) is connected with an output motor (11) through a coupling, and the outer wall of the bottom of the output motor (11) is connected to the outer wall of one side of the box body (1) through a fixing plate.

6. The five-gear small-sized gear transmission is characterized in that gears are arranged on the outer walls of the output shaft (2), the shifting fork shaft (3) and the input shaft (4), an installation groove is formed in the inner wall of each gear, and the size of the installation groove is matched with that of the ejector rod (53).