CN218494133U - Novel wheel tractor differential lock shift fork operating mechanism - Google Patents

Abstract

The utility model discloses a novel wheel type tractor differential lock shift fork operating mechanism, which comprises an elastic pin, a rocker arm welding piece, an O-shaped ring, a box body, a spring, a shift fork shaft, a spacer bush, a shift fork, a shift head and a cam, wherein the shift head is arranged at the inner side of the box body, the cam is driven to rotate by the shift head, the cam is matched with a groove which is pre-arranged at the right side of the shift fork to drive the shift fork to move leftwards along the shift fork shaft, and the shift fork pushes a connected differential lock meshing sleeve and a differential case to be meshed, so that a left driving wheel and a right driving wheel have the same speed with the differential case, and the tractor can quickly drive out of a muddy road surface; when the rocker arm welding piece is loosened, the shifting fork pushes the differential lock meshing sleeve to be separated from the differential shell under the action of the spring, so that the shifting fork is operated more simply, meanwhile, fewer parts of the operating mechanism are required, the assembly is simpler, the material and manufacturing cost is low, and the beneficial effect of the practicability of the shifting fork operating mechanism is improved.

Description

Novel wheel tractor differential lock shift fork operating mechanism

Technical Field

The utility model relates to a wheeled tractor correlation field especially relates to a novel wheeled tractor differential lock shift fork operating mechanism.

Background

A wheel tractor is a kind of tractor, namely the running gear is a tractor of the wheel (unlike the caterpillar tractor) has multiple types such as two-wheel (walking tractor), four-wheel, etc., divide rear wheel drive and four-wheel drive, the large horsepower wheel tractor has better traction performance, suitable for the large farm to wear the wide farm to carry on the high-speed operation, and use with the wheel tractor more and more extensively, in the use, if the muddy road surface or soil is soft situation appear, the adhesion of the rear drive wheel is not enough, the axial appears and skids or the tire sinks, can't go out the muddy road surface, we need to use the differential lock at this moment, avoid the phenomenon of skidding of the tire, and the differential lock fork is the part on the car gearbox, the fork mainly uses the clutch to shift gears, in order to improve the intensity of the fork of the differential lock, the control mechanism is used for controlling the fork.

When the control mechanism controls the shifting fork of the differential lock, the shifting block is usually rotated on the mounting seat through the pull rod, so that the second shifting block is pushed, the compression spring is contracted to enable the shifting fork to move along the shifting fork shaft direction, and the meshing of the differential lock meshing sleeve and the differential shell is realized.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above insufficiency, the utility model provides a novel wheeled tractor differential lock shift fork operating mechanism.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a novel wheeled tractor differential lock shift fork operating mechanism, includes spring pin, rocking arm seam piece and O type circle, the spring pin runs through terminal surface before rocking arm seam piece and declutch shift shaft, declutch shift shaft outside left end is located to rocking arm seam piece cover, and the rocking arm seam piece is located the box left side, O type circle cover is located the declutch shift shaft outside in the left end, and O type circle side surface laminating in the inboard left end of box, the inboard left end of box is provided with the spring, the spring is connected in spacer left end face, and spring inner circle and declutch shift shaft side surface swing joint, the declutch shift shaft runs through in box left end face, and the declutch shift shaft rotates with the box is inboard to be connected, the spacer hugs closely in the declutch shift shaft left end face, and the spacer slides from side to side along declutch shift shaft side surface, the declutch shift inner circle and declutch shift shaft side surface sliding connection, and the right side is provided with the declutch shift head, the declutch shift head is connected in the declutch shift shaft outside in the right-hand member, and declutch shift head left end face is provided with the cam as an organic whole structure.

Preferably, the shifting block is fixedly connected with the shifting fork shaft through an elastic pin, and the elastic pin on the shifting block and the elastic pin on the outer side of the rocker arm welding piece are arranged separately.

Preferably, the spacer bush and the shifting fork are parallel to the shifting fork shaft.

Preferably, the outer diameter of the spring is smaller than that of the spacer bush, and a space is formed between the inner side of the spring and the side surface of the shifting fork shaft.

Preferably, the right end face of the shifting fork is provided with a groove, and the inner side of the groove is matched with the cam.

Preferably, the middle left end of the outer side of the shifting fork shaft is provided with an annular groove matched with the O-shaped ring, and the width of the inner side of the annular groove corresponds to the width of the O-shaped ring.

Preferably, the rocker arm seam piece is parallel to the left end face of the box body, and the right end face of the rocker arm seam piece is provided with an interval with the left end face of the box body.

The utility model has the advantages that:

the utility model has the advantages that the shifting block is arranged at the inner side of the box body, the cam is driven to rotate by the shifting block, the cam is matched with the groove preset at the right side of the shifting fork to drive the shifting fork to move leftwards along the shifting fork shaft, and the shifting fork pushes the connected differential lock meshing sleeve and the differential case to mesh, so that the left and right driving wheels and the differential case have the same speed, and the tractor can quickly run out of a muddy road surface; when the rocker arm welding piece is loosened, the shifting fork pushes the differential lock meshing sleeve to be separated from the differential shell under the action of the spring, so that the shifting fork is operated more simply, parts of the operating mechanism are fewer, the assembly is simpler, the material and manufacturing cost are low, and the beneficial effect of the practicability of the shifting fork operating mechanism is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic view of a-direction partial structure of the present invention.

Wherein: the device comprises an elastic pin-1, a rocker arm welding piece-2, an O-shaped ring-3, a box body-4, a spring-5, a shifting fork shaft-6, a spacer bush-7, a shifting fork-8, a shifting block-9 and a cam-10.

Detailed Description

In order to further explain the technical solution of the present invention, the following is a detailed explanation through specific examples.

Referring to fig. 1 and 2, the utility model provides a novel wheel tractor differential lock shift fork operating mechanism, including elastic pin 1, rocker arm seam piece 2 and O type circle 3, elastic pin 1 runs through in rocker arm seam piece 2 and the preceding terminal surface of declutch shift shaft 6, rocker arm seam piece 2 cover is located declutch shift shaft 6 outside left end, and rocker arm seam piece 2 is located box 4 left side, rocker arm seam piece 2 is on a parallel with box 4 left end face, and rocker arm seam piece 2 right-hand member face and box 4 left end face are provided with the interval, be convenient for rocker arm seam piece 2 to rotate steadily on box 4 left side, and reduce the friction that rocker arm seam piece 2 rotation process and box 4 formed, O type circle 3 cover is located declutch shift shaft 6 outside middle left end, and O type circle 3 side surface laminating is in box 4 inside left end, improved the leakproofness that declutch shift shaft 6 connects in box 4;

a spring 5 is arranged at the left end of the inner side of the box body 4, the spring 5 is connected to the left end face of a spacer 7, the inner ring of the spring 5 is movably connected with the side surface of a shifting fork shaft 6, the shifting fork shaft 6 penetrates through the left end face of the box body 4, the shifting fork shaft 6 is rotatably connected with the inner side of the box body 4, the spacer 7 is tightly attached to the left end face of a shifting fork 8, the spacer 7 slides leftwards and rightwards along the side surface of the shifting fork shaft 6, the spacer 7 and the shifting fork 8 are parallel to the shifting fork shaft 6, the spacer 7 and the shifting fork 8 can stably move outside the shifting fork shaft 6 conveniently, the inner ring of the shifting fork 8 is slidably connected with the side surface of the shifting fork shaft 6, a shifting block 9 is arranged at the right side of the shifting fork 8, the shifting block 9 is connected to the middle and right ends of the outer side of the shifting fork shaft 6, and a cam 10 is arranged on the left end face of the shifting block 9 in an integrated structure;

the shifting head 9 is fixedly connected with the shifting fork shaft 6 through the elastic pin 1, and the elastic pin 1 on the shifting head 9 and the elastic pin 1 on the outer side of the rocker arm welding piece 2 are arranged separately, so that the stability of the shifting head 9 connected with the shifting fork shaft 6 is improved;

in the embodiment, the outer diameter of the spring 5 is smaller than that of the spacer 7, and a space is formed between the inner side of the spring 5 and the side surface of the shifting fork shaft 6, so that the spacer 7 can apply stable thrust to the spring 5 conveniently, and the spring 5 can be compressed stably outside the shifting fork shaft 6 conveniently;

a groove is formed in the right end face of the shifting fork 8, and the inner side of the groove is matched with the cam 10, so that the cam 10 is matched with the groove when rotating to drive the shifting fork 8 to horizontally move along the shifting fork shaft 6;

wherein, the middle left end of the outer side of the shifting fork shaft 6 is provided with an annular groove matched with the O-shaped ring 3, and the width of the inner side of the annular groove corresponds to the width of the O-shaped ring 3, so that the O-shaped ring 3 is conveniently and stably connected with the shifting fork shaft 6;

specifically, the mechanism is integrally installed at a proper position on a tractor, a shifting fork 8 is connected to a differential lock meshing sleeve of the tractor, when the differential lock meshing sleeve is meshed with a differential shell, a rocker arm welding piece 2 is rotated to drive a shifting fork shaft 6, a shifting head 9 and a cam 10 to rotate, the cam 10 is matched with a groove pre-formed in the right side of the shifting fork 8 in the rotating process to drive the shifting fork 8 to horizontally move leftwards along the shifting fork shaft 6, meanwhile, the shifting fork 8 drives a spacer 7 to move leftwards, a spring 5 is compressed by the pressure of the spacer 7, and the connected differential lock meshing sleeve is pushed to be meshed with the differential shell in the leftward movement process of the shifting fork 8, so that left and right driving wheels and the differential shell are at the same speed, and the tractor can quickly run out of a muddy road;

when the differential lock meshing sleeve and the differential case are required to be separated, the rocker arm welding piece 2 can be loosened, at the moment, the shifting fork 8 and the spacer 7 move rightwards along the shifting fork shaft 6 under the action of the elasticity of the spring 5, and the shifting fork 8 drives the differential lock meshing sleeve and the differential case which are connected to be separated, so that the shifting fork 8 is operated.

The utility model provides a novel wheel type tractor differential lock shift fork operating mechanism, which drives a cam 10 to rotate through a shift head 8, the cam 10 is matched with a groove pre-opened on the right side of the shift fork 8 to drive the shift fork 8 to move leftwards along a shift fork shaft 6, and the shift fork 8 pushes a differential lock meshing sleeve and a differential case which are connected with each other to be meshed, thereby realizing that the left and right driving wheels and the differential case have the same speed, and leading a tractor to quickly run out of a muddy road surface; when the rocker arm welding piece 2 is loosened, the shifting fork pushes the differential lock meshing sleeve to be separated from the differential shell under the action of the spring 5, so that the shifting fork 8 is operated, the shifting fork 8 is operated more simply, parts of the operating mechanism are fewer, the assembly is simpler, the material and the manufacturing cost are low, and the beneficial effect of the practicability of the shifting fork operating mechanism is improved.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. The utility model provides a novel wheeled tractor differential lock shift fork operating mechanism which characterized in that: the structure of the rocker arm welding piece comprises an elastic pin (1), a rocker arm welding piece (2) and an O-shaped ring (3), the elastic pin (1) penetrates through the front end surfaces of the rocker arm welding piece (2) and the shifting fork shaft (6), the rocker arm welding piece (2) is sleeved at the left end of the outer side of the shifting fork shaft (6), the rocker arm welding piece (2) is positioned at the left side of the box body (4), the O-shaped ring (3) is sleeved at the middle left end of the outer side of the shifting fork shaft (6), and the side surface of the O-shaped ring (3) is attached to the left end of the inner side of the box body (4), a spring (5) is arranged at the left end of the inner side of the box body (4), the spring (5) is connected with the left end surface of the spacer bush (7), and the inner ring of the spring (5) is movably connected with the side surface of the shifting fork shaft (6), the shifting fork shaft (6) penetrates through the left end surface of the box body (4), the shifting fork shaft (6) is rotationally connected with the inner side of the box body (4), the spacer bush (7) is tightly attached to the left end surface of the shifting fork (8), and the spacer bush (7) slides left and right along the side surface of the shifting fork shaft (6), the inner ring of the shifting fork (8) is connected with the side surface of the shifting fork shaft (6) in a sliding way, and the right side of the shifting fork (8) is provided with a shifting block (9), the shifting block (9) is connected with the middle right end of the outer side of the shifting fork shaft (6), and the left end surface of the shifting head (9) is provided with a cam (10) in an integrated structure.

2. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: the shifting head (9) is fixedly connected with the shifting fork shaft (6) through the elastic pin (1), and the elastic pin (1) on the shifting head (9) and the elastic pin (1) on the outer side of the rocker arm welding piece (2) are arranged separately.

3. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: the spacer bush (7) and the shifting fork (8) are both parallel to the shifting fork shaft (6).

4. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: the outer diameter of the spring (5) is smaller than that of the spacer bush (7), and a space is formed between the inner side of the spring (5) and the side surface of the shifting fork shaft (6).

5. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: the right end face of the shifting fork (8) is provided with a groove, and the inner side of the groove is matched with the cam (10).

6. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: the middle and left ends of the outer side of the shifting fork shaft (6) are provided with annular grooves matched with the O-shaped rings (3), and the width of the inner sides of the annular grooves corresponds to the width of the O-shaped rings (3).

7. The novel wheel type tractor differential lock fork operating mechanism according to claim 1, characterized in that: rocking arm seam piece (2) are on a parallel with box (4) left end face, and rocking arm seam piece (2) right-hand member face is provided with the interval with box (4) left end face.

Images