CN219774773U - Chassis side shuttle type gear operating mechanism - Google Patents
Chassis side shuttle type gear operating mechanism Download PDFInfo
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- CN219774773U CN219774773U CN202320670960.3U CN202320670960U CN219774773U CN 219774773 U CN219774773 U CN 219774773U CN 202320670960 U CN202320670960 U CN 202320670960U CN 219774773 U CN219774773 U CN 219774773U
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- gear
- gear shifting
- shaft
- operating mechanism
- sleeve
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- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Gear-Shifting Mechanisms (AREA)
Abstract
The utility model discloses a chassis side shuttle type gear operating mechanism which comprises a gear shifting shaft, wherein the gear shifting shaft penetrates through the left side wall of a bridge box body along the horizontal direction, the inner end of the gear shifting shaft is matched with a shifting fork in the bridge box body, and the outer end of the gear shifting shaft is connected with a rocker arm outside the bridge box body; the gear shifting shaft consists of a step shaft and a gear shifting head, wherein the step shaft comprises a large-diameter section and a small-diameter section, a sleeve is arranged on the small-diameter section of the step shaft, and the sleeve is embedded in the left side wall of the gap bridge box body; the end part of the small diameter section of the step shaft is provided with a rocker arm, the upper part of the large diameter section of the step shaft is fixedly connected with a gear shifting head, the gear shifting head is bent at 90 degrees, and the gear shifting head is positioned in a shifting groove at the top of the shifting fork. According to the chassis side shuttle type gear operating mechanism, smoothness of gear shifting of the tractor is achieved by changing the position of the gear shifting mechanism, the operating space of a user is increased, the structure is simple, the operation is labor-saving and convenient, and the appearance is attractive.
Description
Technical Field
The utility model relates to a chassis side shuttle type gear operating mechanism, and belongs to the technical field of gear shifting mechanisms.
Background
The wheel type tractor, the walking device is a wheel type tractor, and has multiple types such as two wheels (walking tractor), four wheels and the like, and in order to meet the requirements of the wheel type tractor matched with a loader and other engineering operations, the tractor is required to have the functions of fast forward and fast backward, the shuttle gear configuration is an important component part for realizing the fast forward and fast backward of the wheel type tractor, and the shuttle gear configuration of the tractor is convenient for a user to fast switch the forward/backward of the tractor, so that the labor efficiency is improved, and the shuttle gear configuration is more and more favored by the user.
The operating position of the general shuttle gear is arranged right above the chassis of the tractor, so that the operating space of a user is influenced, gear shifting is difficult, accessories are numerous, and the smoothness of gear shifting of the tractor is influenced.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects in the background technology, the utility model provides the chassis side shuttle gear operating mechanism, which realizes the smoothness of gear shifting of the tractor by changing the position of the gear shifting mechanism, improves the operation space of a user, has simple structure, saves labor and is convenient to operate and attractive in appearance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the chassis side shuttle gear operating mechanism comprises a gear shifting shaft, the gear shifting shaft penetrates through the left side wall of the bridge box body along the horizontal direction, the inner end of the gear shifting shaft is matched with a shifting fork in the bridge box body, and the outer end of the gear shifting shaft is connected with a rocker arm outside the bridge box body;
the gear shifting shaft consists of a step shaft and a gear shifting head, wherein the step shaft comprises a large-diameter section and a small-diameter section, a sleeve is arranged on the small-diameter section of the step shaft, and the sleeve is embedded in the left side wall of the gap bridge box body;
the end part of the small diameter section of the step shaft is provided with a rocker arm, the upper part of the large diameter section of the step shaft is fixedly connected with a gear shifting head, the gear shifting head is bent at 90 degrees, and the gear shifting head is positioned in a shifting groove at the top of the shifting fork.
Further, the rocker arm is connected with an operating gear lever through a pull rod, and the operating gear lever drives the rocker arm to swing through the pull rod.
Further, the step shaft is rotationally connected with the sleeve, the sleeve is provided with a lug plate for connection, and the lug plate is fixedly connected with the wall of the bridge box body through bolts.
Further, the number of bolts is at least two.
Further, an oil seal is installed in the end part, close to the rocker arm, of the sleeve.
Further, the rocker arms are connected through step shaft positioning pins, and the positioning pins penetrate through the rocker arms and the step shafts.
Further, the number of the positioning pins is two, and the positioning pins are cylindrical pins.
Further, the shifting fork is in transmission connection with the meshing sleeve, internal teeth are arranged on the inner circle of the meshing sleeve, and the internal teeth are meshed with external teeth on the outer circle of the meshing seat.
Further, one side of the meshing seat is provided with a shuttle gear driving gear, and the other side of the meshing seat is provided with a shuttle gear driven gear.
After the technical scheme is adopted, compared with the prior art, the utility model has the following advantages:
according to the utility model, the control gear lever drives the rocker arm on the left side of the gap bridge box body to rotate through the pull rod, so that the gear shifting shaft is driven to rotate, the gear shifting shaft shifts the shifting fork to move forwards and backwards, and the shifting fork drives the meshing sleeve to be in sliding meshing engagement with the shuttle gear driving gear, the meshing seat and the shuttle gear driven gear, so that the back and forth gear shifting is realized;
the gear lever of the chassis side shuttle gear operating mechanism provided by the utility model is positioned on the left side surface of the chassis, so that the operating space in the instrument desk of the tractor and on the left side of the steering column is large, the operation is facilitated, the leg space of a tractor driver is improved, the overall structure is simple, the operation is labor-saving and convenient, and the appearance is more attractive.
The utility model will now be described in detail with reference to the drawings and examples.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the structure of FIG. 1;
FIG. 3 is a schematic illustration of the attachment of the sleeve;
fig. 4 is a schematic illustration of a shift shaft connection.
In the figure, 1-rocker arm, 2-oil seal, 3-sleeve, 4-shift shaft, 41-step shaft, 42-shift shifting head, 5-shift fork, 6-gap bridge box, 7-shuttle gear driving gear, 8-meshing sleeve, 9-meshing seat and 10-shuttle gear driven gear.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present utility model, a specific embodiment of the present utility model will be described with reference to the accompanying drawings.
As shown in fig. 1-4 together, the utility model provides a chassis side shuttle gear operating mechanism, which comprises a gear shifting shaft 4, wherein the gear shifting shaft 4 penetrates through the left side wall of a bridge box body 6 along the horizontal direction, the inner end of the gear shifting shaft 4 is matched with a shifting fork 5 in the bridge box body 6, the outer end of the gear shifting shaft 4 is connected with a rocker arm 1 outside the bridge box body 6, and the rocker arm 1 drives the shifting fork 5 to move through the gear shifting shaft 4.
The rocker arm 1 is connected with an operating gear lever through a pull rod, and the operating gear lever drives the rocker arm 1 to swing through the pull rod.
The gear shifting shaft 4 comprises a step shaft 41 and a gear shifting head 42, the step shaft 41 comprises a large-diameter section and a small-diameter section, a sleeve 3 is installed on the small-diameter section of the step shaft 41, the step shaft 41 is rotationally connected with the sleeve 3, the sleeve 3 is embedded in the left side box wall of the bridge box body 6, the sleeve 3 is provided with a lug plate for connection, the lug plate is fixedly connected with the box wall of the bridge box body 6 through bolts, and the number of the bolts is at least two.
An oil seal 2 is arranged in the end part, close to the rocker arm 1, of the sleeve 3, and an oil sealing function is achieved through the oil seal 2.
The upper part of the large-diameter section of the step shaft 41 is fixedly connected with a gear shifting head 42, the gear shifting head 42 is bent at 90 degrees, the gear shifting head 42 is positioned in a shifting groove at the top of the shifting fork 5, and the gear shifting head 42 drives the shifting fork 5 to move in the rotating process.
The end of the small-diameter section of the step shaft 41 is provided with a rocker arm 1, the rocker arm 1 is connected through a locating pin of the step shaft 41, and the locating pin penetrates through the rocker arm 1 and the step shaft 41.
The number of the positioning pins is two, and the positioning pins are preferably cylindrical pins.
The shifting fork 5 is in transmission connection with the meshing sleeve 8, internal teeth are arranged on the inner circle of the meshing sleeve 8, and the internal teeth are meshed with external teeth on the outer circle of the meshing seat 9.
One side of the meshing seat 9 is provided with a shuttle-type gear driving gear 7, the other side of the meshing seat 9 is provided with a shuttle-type gear driven gear 10, and the inner teeth of the meshing sleeve 8 can be meshed with the outer teeth on the outer circles of the shuttle-type gear driving gear 7 and the shuttle-type gear driven gear 10.
The specific working principle of the utility model is as follows:
according to the utility model, the gear lever is operated to drive the rocker arm 1 on the left side of the gap bridge box body 6 to rotate through the pull rod, so that the gear shifting shaft 4 is driven to rotate, the gear shifting shaft 4 drives the shifting fork 5 to move forwards and backwards, and the shifting fork 5 drives the meshing sleeve 8 to slidingly mesh on the shuttle gear driving gear 7, the meshing seat 9 and the shuttle gear driven gear 10, so that the gear shifting can be realized.
The gear lever of the chassis side shuttle gear operating mechanism is positioned on the left side surface of the chassis, and the operating space in the instrument desk of the tractor and on the left side of the steering column is large, so that the leg space of a tractor driver is improved, the operation is labor-saving and convenient, and the operation is convenient.
The chassis side shuttle type gear operating mechanism provided by the utility model is mainly applied to a mud guard model, and also can be applied to a flat floor model, a cab model and the like.
The foregoing is illustrative of the best mode of carrying out the utility model, and is not presented in any detail as is known to those of ordinary skill in the art. The protection scope of the utility model is defined by the claims, and any equivalent transformation based on the technical teaching of the utility model is also within the protection scope of the utility model.
Claims (9)
1. The chassis side shuttle type gear operating mechanism is characterized in that: the gear shifting device comprises a gear shifting shaft (4), wherein the gear shifting shaft (4) penetrates through the left side wall of a bridge box body (6) along the horizontal direction, the inner end of the gear shifting shaft (4) is matched with a shifting fork (5) in the bridge box body (6), and the outer end of the gear shifting shaft (4) is connected with a rocker arm (1) outside the bridge box body (6);
the gear shifting shaft (4) consists of a step shaft (41) and a gear shifting head (42), the step shaft (41) comprises a large-diameter section and a small-diameter section, a sleeve (3) is arranged on the small-diameter section of the step shaft (41), and the sleeve (3) is embedded in the left side wall of the gap bridge box body (6);
the end part of the small diameter section of the step shaft (41) is provided with a rocker arm (1), the upper part of the large diameter section of the step shaft (41) is fixedly connected with a gear shifting head (42), the gear shifting head (42) is bent at 90 degrees, and the gear shifting head (42) is positioned in a shifting groove at the top of the shifting fork (5).
2. The chassis side shuttle operating mechanism of claim 1 wherein: the rocker arm (1) is connected with an operating gear lever through a pull rod, and the operating gear lever drives the rocker arm (1) to swing through the pull rod.
3. The chassis side shuttle operating mechanism of claim 1 wherein: the step shaft (41) is rotationally connected with the sleeve (3), the sleeve (3) is provided with a lug plate for connection, and the lug plate is fixedly connected with the wall of the bridge box body (6) through bolts.
4. The chassis side shuttle operating mechanism of claim 3 wherein: the number of bolts is at least two.
5. The chassis side shuttle operating mechanism of claim 1 wherein: an oil seal (2) is arranged in the end part of the sleeve (3) close to the rocker arm (1).
6. The chassis side shuttle operating mechanism of claim 1 wherein: the rocker arm (1) is connected through a step shaft (41) locating pin, and the locating pin penetrates through the rocker arm (1) and the step shaft (41).
7. The chassis side shuttle operating mechanism of claim 6 wherein: the number of the locating pins is two, and the locating pins are cylindrical pins.
8. The chassis side shuttle operating mechanism of claim 1 wherein: the shifting fork (5) is in transmission connection with the meshing sleeve (8), internal teeth are arranged on the inner circle of the meshing sleeve (8), and the internal teeth are meshed with external teeth on the excircle of the meshing seat (9).
9. The chassis side shuttle operating mechanism of claim 8 wherein: one side of the meshing seat (9) is provided with a shuttle gear driving gear (7), and the other side of the meshing seat (9) is provided with a shuttle gear driven gear (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320670960.3U CN219774773U (en) | 2023-03-30 | 2023-03-30 | Chassis side shuttle type gear operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320670960.3U CN219774773U (en) | 2023-03-30 | 2023-03-30 | Chassis side shuttle type gear operating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219774773U true CN219774773U (en) | 2023-09-29 |
Family
ID=88105963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320670960.3U Active CN219774773U (en) | 2023-03-30 | 2023-03-30 | Chassis side shuttle type gear operating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219774773U (en) |
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2023
- 2023-03-30 CN CN202320670960.3U patent/CN219774773U/en active Active
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