CN220243360U - Rear frame and tractor - Google Patents
Rear frame and tractor Download PDFInfo
- Publication number
- CN220243360U CN220243360U CN202321996209.9U CN202321996209U CN220243360U CN 220243360 U CN220243360 U CN 220243360U CN 202321996209 U CN202321996209 U CN 202321996209U CN 220243360 U CN220243360 U CN 220243360U
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- rear frame
- mounting plate
- tractor
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- reinforcing ribs
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- 230000003014 reinforcing effect Effects 0.000 claims description 34
- 230000008602 contraction Effects 0.000 abstract description 2
- 239000003921 oil Substances 0.000 description 8
- 230000009471 action Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of tractors, and discloses a rear frame and a tractor. Wherein the main mounting plate of the drag case is used for being connected with the drag case; the two side vertical plates are arranged at intervals along the first direction and welded on the side surface of the main mounting plate of the towing box, which is away from the towing box; the articulated seat assembly is welded on the side surface of the main mounting plate of the towing box, which is away from the towing box, and two ends of the articulated seat assembly along the first direction are respectively welded on the opposite side surfaces of the two side vertical plates, and the articulated seat assembly is articulated with the front frame of the tractor; the steering support is fixedly connected between the two side vertical plates, the steering oil cylinder is hinged to the steering support and the front frame, and the front frame can swing relative to the rear frame through the expansion and contraction of the steering oil cylinder so as to realize the turning of the tractor. The rear frame has stronger bearing capacity and smaller turning radius, and is suitable for the working condition of limited places.
Description
Technical Field
The utility model relates to the technical field of tractors, in particular to a rear frame and a tractor.
Background
The existing common heavy-load tractor is a semitrailer generally, and when the semitrailer turns, the front wheels are controlled by the steering wheel to steer, so that the whole vehicle is driven to steer. But the semitrailer head is a rigid frame, and the steering is realized through the deflection of the front wheels, and the steering mode leads to the larger turning radius of the semitrailer and is not suitable for the working condition of limited places.
Disclosure of Invention
The utility model aims to provide a rear frame and a tractor, which can reduce the turning radius of the tractor and are suitable for the working condition of limited places.
To achieve the purpose, the utility model adopts the following technical scheme:
a rear frame comprising:
a tractor box main mounting plate configured to connect with a tractor box of a tractor;
the two side vertical plates are fixedly arranged on the side surface of the main mounting plate of the drag box, which is away from the drag box, along the first direction at intervals;
the articulated seat assembly is fixedly arranged on the side surface of the main mounting plate of the towing box, which is away from the towing box, and two ends of the articulated seat assembly along the first direction are respectively connected with the two side vertical plates, and the articulated seat assembly is articulated with the front frame of the tractor;
the steering support is fixedly connected to the two side vertical plates, and the steering oil cylinder is hinged to the steering support and the front frame.
As an alternative, the main mounting plate of the trailer box is provided with a lower through hole, the side vertical plates are provided with extension parts, the extension parts penetrate through the lower through hole, and the steering support is fixedly connected between the extension parts of the two side vertical plates.
As an alternative, the vehicle further comprises a vehicle auxiliary plate fixedly connected to the steering support and the two extensions, and the vehicle can be connected to the vehicle auxiliary plate.
As an alternative, the main mounting plate of the trailer box and the auxiliary plate of the trailer box are respectively provided with four mounting holes, and eight bolts are respectively screwed to eight mounting holes so as to connect the main mounting plate of the trailer box with the auxiliary plate of the trailer box at the same time.
As an alternative, the device further comprises two groups of first reinforcing ribs, one group of first reinforcing ribs is connected to the main mounting plate of the trailer box and one of the extending parts, and the other group of first reinforcing ribs is connected to the main mounting plate of the trailer box and the other extending part.
As an alternative scheme, articulated seat subassembly includes articulated seat and lower articulated seat, go up articulated seat with articulated seat down along the second direction interval fixed set up in drag case main mounting panel deviates from drag the side of case, just go up articulated seat's both ends connect respectively in two the side riser, go up articulated seat with the last articulated slab of preceding frame is articulated, articulated seat's both ends connect respectively in two down the side riser, articulated seat with the articulated slab of down of preceding frame is articulated down.
As an alternative, the device further comprises two second reinforcing ribs, one second reinforcing rib is connected to the lower hinge seat and one side vertical plate, and the other second reinforcing rib is connected to the lower hinge seat and the other side vertical plate.
As an alternative, two third reinforcing ribs are arranged on the lower hinge seat, and the two third reinforcing ribs are symmetrically arranged on the lower hinge seat by taking the central plane between the two side vertical plates as a reference.
As an alternative scheme, still include two stopper, two the stopper with the centre plane between the side riser is the benchmark symmetry set up in articulated seat subassembly, the stopper can restrict the rotation angle of preceding frame.
As an alternative, the two opposite side surfaces of the side vertical plates are provided with lifting lugs, and the lifting lugs are provided with lifting holes.
To this end, the utility model also provides a tractor, using the rear frame as described above.
The utility model has the beneficial effects that:
according to the rear frame provided by the utility model, the hinging seat assembly is hinged with the front frame of the tractor, the steering oil cylinder is hinged with the steering support on the rear frame and the front frame, and when the tractor turns, the front frame can rotate relative to the rear frame by taking the hinging position as an axis through the telescopic action of the steering oil cylinder, so that the tractor turns. The rear frame is based on a loader platform, the front frame of the loader is improved, compared with a traditional semitrailer, the tractor applying the rear frame has stronger bearing capacity, the front frame is hinged with the hinging seat assembly, the vehicle can turn on site, the turning radius is smaller, and the vehicle is suitable for the working condition of limited places.
Drawings
FIG. 1 is a schematic view of a rear frame according to an embodiment of the present utility model;
fig. 2 is a schematic structural diagram of a rear frame according to an embodiment of the present utility model.
In the figure:
1. a main mounting plate of the drag case; 11. a lower through hole; 12. a mounting hole; 13. an upper through hole; 2. a side vertical plate; 21. an extension; 22. lifting lugs; 3. a steering support; 4. a drag box auxiliary plate; 5. a first reinforcing rib; 6. an upper hinging seat; 7. a lower hinge seat; 71. a third reinforcing rib; 8. a second reinforcing rib; 9. a limiting block; 10. a dispensing valve mount.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar parts throughout, or parts having like or similar functions. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be interpreted broadly, as for example, they may be fixedly connected, or may be detachably connected, or may be electrically connected, or may be directly connected, or may be indirectly connected through an intermediary, or may be in communication with one another in two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the description of the present utility model, unless explicitly stated and limited otherwise, a first feature "above" or "below" a second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature not being in direct contact but being in contact by another feature therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The technical scheme of the utility model is further described below by the specific embodiments with reference to the accompanying drawings.
The embodiment of the utility model provides a rear frame, which is reformed based on a front frame of a loader. As shown in fig. 1-2, the rear frame includes a main trailer box mounting plate 1, side risers 2, a hinge seat assembly, and a steering bracket 3. Wherein the main mounting plate 1 of the drag case is used for being connected with the drag case; the two side vertical plates 2 are arranged at intervals along the first direction and welded on the side surface of the main mounting plate 1 of the towing box, which is away from the towing box; the articulated seat assembly is welded on the side surface of the main mounting plate 1 of the towing box, which is away from the towing box, and two ends of the articulated seat assembly along the first direction are respectively welded on the opposite side surfaces of the two side vertical plates 2, and the articulated seat assembly is articulated with the front frame of the tractor; the steering support 3 is fixedly connected between the two side vertical plates 2, the steering oil cylinder is hinged to the steering support 3 and the front frame, and the front frame can swing relative to the rear frame through the expansion and contraction of the steering oil cylinder so as to realize the turning of the tractor. In this embodiment, two steering cylinders are disposed at intervals along the first direction and are located at two sides of the hinge base assembly and the hinge shaft of the front frame, and the output rod of one steering cylinder extends out, and the output rod of the other steering cylinder retracts to realize turning of the tractor.
According to the rear frame, the hinging seat assembly is hinged with the front frame, the steering oil cylinder is hinged with the steering support 3 on the rear frame and the front frame, when the tractor turns, the front frame can rotate relative to the rear frame by taking the hinging position as the circle center through the telescopic action of the steering oil cylinder, and therefore the tractor turns. The rear frame is based on a loader platform, the front frame of the loader is improved, compared with a traditional semitrailer, the tractor applying the rear frame has stronger bearing capacity, the front frame is hinged with the hinging seat assembly, the vehicle can turn on site, the turning radius is smaller, and the vehicle is suitable for the working condition of limited places.
With continued reference to fig. 1, the main mounting plate 1 of the trailer box is provided with a lower through hole 11, the side vertical plates 2 are provided with extension parts 21, when the side vertical plates 2 are welded on one side of the main mounting plate 1 of the trailer box, which is far away from the trailer box, the extension parts 21 pass through the lower through hole 11 and are positioned on the other side of the main mounting plate 1 of the trailer box, two ends of the steering support 3 along the first direction are welded between the extension parts 21 of the two side vertical plates 2, and the steering cylinder is hinged between the steering support 3 and the front frame and penetrates through the lower through hole 11.
The main mounting plate 1 of the trailer box is also provided with an upper through hole 13 to reduce weight.
The rear frame further comprises a drag box auxiliary plate 4, the drag box can be connected with the drag box main mounting plate 1 and the drag box auxiliary plate 4 at the same time to improve the connection firmness of the drag box and the rear frame, and the drag box auxiliary plate 4 is welded with the steering support 3 and the two extension parts 21 at the same time to improve the connection stability of the drag box auxiliary plate 4; and the auxiliary board 4 of the trailer box can also be used for temporarily assembling bridge mounting supports for mounting the bridge and wheels for transferring and debugging the tractor when the tractor is debugged.
Specifically, the main mounting plate 1 of the drag case and the auxiliary plate 4 of the drag case are respectively provided with four mounting holes 12, the drag case is provided with through holes corresponding to eight mounting holes 12, and eight bolts respectively penetrate through the eight through holes to be in threaded connection with the corresponding mounting holes 12 so as to connect the drag case with the main mounting plate 1 of the drag case and the auxiliary plate 4 of the drag case simultaneously, and the auxiliary plate is simple in connection structure and convenient to assemble.
The bridge mounting support is connected with the auxiliary plate 4 of the drag case through four mounting holes 12 which are connected with the auxiliary plate 4 of the drag case through bolts.
The rear frame further comprises two groups of first reinforcing ribs 5, one group of first reinforcing ribs 5 are welded on the main mounting plate 1 of the trailer box and one extension portion 21, and the other group of first reinforcing ribs 5 are welded on the main mounting plate 1 of the trailer box and the other extension portion 21, so that the structural stability of the extension portion 21 is improved, and the structural stability of the steering support 3 is further improved. Each group of first reinforcing ribs 5 comprises two first reinforcing ribs 5, and two of the first reinforcing ribs 5 in each group are arranged at intervals along the second direction.
Referring back to fig. 1 and 2, the hinge seat assembly includes an upper hinge seat 6 and a lower hinge seat 7, the upper hinge seat 6 and the lower hinge seat 7 are both welded on the side surface of the main mounting plate 1 of the trailer box, which is away from the trailer box, the upper hinge seat 6 and the lower hinge seat 7 are distributed at intervals along the second direction, two ends of the upper hinge seat 6 along the first direction are respectively welded on two side vertical plates 2, and the upper hinge seat 6 is hinged with an upper hinge plate of the front frame, two ends of the lower hinge seat 7 along the first direction are respectively welded on two side vertical plates 2, and the lower hinge seat 7 is hinged with a lower hinge plate of the front frame.
In order to further improve the stability of the lower hinge seat 7, the rear frame further comprises two second reinforcing ribs 8, one second reinforcing rib 8 being welded between the lower hinge seat 7 and one side riser 2, the other second reinforcing rib 8 being welded between the lower hinge seat 7 and the other side riser 2.
The rear frame further comprises two third reinforcing ribs 71, the two third reinforcing ribs 71 are arranged on the lower hinge seat 7, the two third reinforcing ribs 71 are symmetrically arranged by taking the central surfaces of the two side vertical plates 2 as references, and the two third reinforcing ribs 71 can effectively improve the bending strength of the lower hinge seat 7 and improve the stability.
The hinge shaft comprises a first hinge shaft and a second hinge shaft, the upper hinge seat 6 comprises two first hinge plates, and the upper hinge plate of the front frame is clamped between the two first hinge plates and hinged through the first hinge shaft; the lower hinge seat 7 comprises two second hinge plates, and the lower hinge plate of the front frame is clamped between the two second hinge plates and hinged through a second hinge shaft.
The bottom ends of the two side vertical plates 2 are welded to the second hinge plate located at the lowest position, the second hinge plate located at the upper position and the two first hinge plates are welded to opposite side surfaces of the two side vertical plates 2 at two ends along the first direction, the second reinforcing ribs 8 are welded between the second hinge plate located at the upper position and the side vertical plates 2, and the third reinforcing ribs 71 are arranged on the second hinge plate located at the upper position.
In order to limit the rotation angle of the front frame, the rear frame further comprises two limiting blocks 9, the two limiting blocks 9 are welded on the second hinge plates positioned below, the two limiting blocks 9 are symmetrically arranged by taking the central plane between the two side vertical plates 2 as a reference, and when the front frame rotates relative to the rear frame, the lower hinge plates of the front frame are limited between the two limiting blocks 9.
The opposite side surfaces of the two side vertical plates 2 are provided with lifting lugs 22, and the lifting lugs 22 are provided with lifting holes so as to facilitate lifting.
A distributing valve mounting seat 10 is also arranged between the two side vertical plates 2, and a distributing valve is arranged on the distributing valve mounting seat 10 and used for distributing hydraulic oil to each oil way.
The embodiment also provides a tractor, and the rear frame is applied.
It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.
Claims (11)
1. The back frame, its characterized in that includes:
a tractor box main mounting plate (1), the tractor box main mounting plate (1) being configured to be connected with a tractor box of a tractor;
the two side vertical plates (2) are fixedly arranged on the side surface of the main mounting plate (1) of the towing box, which is away from the towing box, along the first direction at intervals;
the articulated seat assembly is fixedly arranged on the side surface of the main mounting plate (1) of the towing box, which is away from the towing box, and two ends of the articulated seat assembly along the first direction are respectively connected with the two side vertical plates (2), and the articulated seat assembly is articulated with the front frame of the tractor;
the steering support (3), the steering support (3) is fixedly connected with two side vertical plates (2), and the steering oil cylinder is hinged to the steering support (3) and the front frame.
2. Rear frame according to claim 1, characterized in that the main mounting plate (1) of the trailer box is provided with a lower through hole (11), the side uprights (2) are provided with extensions (21), the extensions (21) are arranged through the lower through hole (11), and the steering support (3) is fixedly connected between the extensions (21) of two side uprights (2).
3. The rear frame according to claim 2, characterized in that it further comprises a trunk auxiliary plate (4), said trunk auxiliary plate (4) being fixedly connected to both said steering support (3) and to both said extensions (21), said trunk being further connectable to said trunk auxiliary plate (4).
4. A rear frame as claimed in claim 3, characterized in that the main and auxiliary trailer mounting plates (1, 4) are each provided with four mounting holes (12), eight bolts being screwed to eight of the mounting holes (12) for connecting the trailer to both the main trailer mounting plate (1) and the auxiliary trailer plate (4).
5. The rear frame according to claim 2, further comprising two sets of first reinforcing ribs (5), one set of the first reinforcing ribs (5) being connected to the main trailer mounting plate (1) and one of the extensions (21), the other set of the first reinforcing ribs (5) being connected to the main trailer mounting plate (1) and the other one of the extensions (21).
6. The rear frame as set forth in claim 1, wherein the hinge seat assembly includes an upper hinge seat (6) and a lower hinge seat (7), the upper hinge seat (6) and the lower hinge seat (7) are fixedly disposed on a side surface of the main mounting plate (1) of the trailer, which is away from the trailer, along a second direction, and two ends of the upper hinge seat (6) are respectively connected to two side uprights (2), the upper hinge seat (6) is hinged to an upper hinge plate of the front frame, two ends of the lower hinge seat (7) are respectively connected to two side uprights (2), and the lower hinge seat (7) is hinged to a lower hinge plate of the front frame.
7. The rear frame as claimed in claim 6, further comprising two second reinforcing ribs (8), one of said second reinforcing ribs (8) being connected to said lower hinge bracket (7) and to one of said side uprights (2), the other of said second reinforcing ribs (8) being connected to said lower hinge bracket (7) and to the other of said side uprights (2).
8. The rear frame as claimed in claim 6, wherein two third reinforcing ribs (71) are provided on the lower hinge base (7), and the two third reinforcing ribs (71) are symmetrically provided on the lower hinge base (7) with reference to a center plane between the two side uprights (2).
9. The rear frame as claimed in claim 1, further comprising two limiting blocks (9), wherein the two limiting blocks (9) are symmetrically arranged on the hinge seat assembly with reference to a central plane between the two side uprights (2), and the limiting blocks (9) can limit a rotation angle of the front frame.
10. Rear frame according to claim 1, characterized in that the opposite sides of both side uprights (2) are provided with lifting lugs (22), the lifting lugs (22) being provided with lifting holes.
11. Tractor, characterized in that a rear frame according to any of claims 1-10 is applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996209.9U CN220243360U (en) | 2023-07-27 | 2023-07-27 | Rear frame and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321996209.9U CN220243360U (en) | 2023-07-27 | 2023-07-27 | Rear frame and tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220243360U true CN220243360U (en) | 2023-12-26 |
Family
ID=89230789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321996209.9U Active CN220243360U (en) | 2023-07-27 | 2023-07-27 | Rear frame and tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220243360U (en) |
-
2023
- 2023-07-27 CN CN202321996209.9U patent/CN220243360U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |