CN109910937A - Draw chassis and tractor - Google Patents
Draw chassis and tractor Download PDFInfo
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- CN109910937A CN109910937A CN201910231083.8A CN201910231083A CN109910937A CN 109910937 A CN109910937 A CN 109910937A CN 201910231083 A CN201910231083 A CN 201910231083A CN 109910937 A CN109910937 A CN 109910937A
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- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 4
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- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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Abstract
The present invention provides a kind of traction chassis and tractors, and drawing chassis includes: carrier frame；Middle cross beam is connected with carrier frame；Middle stringer, is connected with carrier frame, and middle stringer and middle cross beam separate carrier frame to form multiple grids；Floor is removably embedded in grid.Apply technical solution provided by the invention, it ensure that the intensity of traction chassis in the case where not increasing tractor chassis weight, in the grid that middle cross beam and middle stringer are separated out simultaneously, it is provided with dismountable floor module, design is simple, and can realize modular arrangement, wide usage is strong and low production cost.On traction chassis, the position of bearing goods or corresponding function component is needed, floor is fastened on middle cross beam and/or middle stringer, in the position for needing operating personnel to pass through, operating personnel can manually opened corresponding floor, to form access path, convenient working personnel execute upkeep operation.
Description
Technical field
The present invention relates to tractor technical fields, in particular to a kind of traction chassis and a kind of tractor.
Background technique
Currently, straddle-type monorail detection Operation Van is mostly used in hauling operation personnel and to maintain equipment to monorail.
In addition to daily inspection (on vehicle based on visual inspection), it is also necessary to be checked (operating personnel to monorail track beam and support etc.
It needs lower to vehicle bottom).General straddle-type monorail detection operating vehicle chassis mostly use bearing-type chassis, and floor uses composite floor board
(such as artboard sandwich structure), is laid with plastic floor cloth or checkered steel plate above, during vehicle production, needs floor
Whole design is carried out, again according to different use demands, reserves access path, design is complicated, manufacturing process is cumbersome, and does not have
Wide usage, high production cost.
Therefore need that a kind of design is simple and the stronger chassis design of wide usage at present.
Summary of the invention
The present invention is directed to solve at least one of the technical problems existing in the prior art or related technologies.
For this purpose, the first aspect of the present invention proposes a kind of traction chassis.
The second aspect of the present invention proposes a kind of tractor.
In view of this, the first aspect of the present invention provides a kind of traction chassis, comprising: carrier frame；Middle cross beam, with
Carrier frame is connected；Middle stringer, is connected with carrier frame, and middle stringer and middle cross beam separate carrier frame to form multiple lattice
Grid；Floor is removably embedded in grid.
In the technical scheme, traction chassis includes the carrier frame as main body, is provided in frame interlaced
The middle cross beam of connection and middle stringer, middle cross beam and middle stringer will be separated into multiple grids in carrier frame, floor is removably embedding
In grid.Technical solution provided by the invention is applied, middle cross beam and middle stringer are staggeredly equipped in carrier frame, not
It ensure that the intensity of traction chassis, while the lattice that middle cross beam and middle stringer are separated out in the case where increasing tractor chassis weight
In grid, it is provided with dismountable floor module.Wherein it is possible to which the size that each grid is arranged is identical, same size can be made
Floor be suitable for all positions grid；Alternatively, the size of each grid can also change size according to actual needs, simultaneously
It is equipped with various sizes of floor, design is simple, and can realize modular arrangement, and wide usage is strong and low production cost.?
It draws on chassis, needs the position of bearing goods or corresponding function component, floor is fastened on middle cross beam and/or middle stringer,
In the position for needing operating personnel to pass through, the retractable setting in floor or floor are erected in grid, and operating personnel can be manually opened
Corresponding floor, to form access path, convenient working personnel execute upkeep operation.
Specifically, carrier frame is rectangular frame, and middle cross beam is arranged in the width direction inside rectangular frame, and middle cross beam can
It is set perpendicularly to the long side of rectangular frame；Stringer, middle stringer are settable in setting along its length in rectangular frame simultaneously
For the broadside perpendicular to rectangular frame；In middle cross beam perpendicular to the long side of rectangular frame, while middle stringer is perpendicular to rectangular frame
Broadside in the case where, middle cross beam and middle stringer are mutually perpendicular to intersect, and are firmly connected to each other so that traction chassis be not added
Higher structural strength is kept under the premise of overall weight；Meanwhile middle cross beam and middle stringer it is arranged in a crossed manner after will be in carrier frame
Part is divided into multiple grids；Floor is modular floor, and floorboard, the shape and size on floor are respectively set in each grid
Match with grid, grid is sunk in modular floor lower part；In the part for needing load-bearing, chassis and carrier frame, middle cross beam and/
Or middle stringer is fixedly linked；In the place for needing reserved operation personnel channel, corresponding floor can be opened and closed by folding, or corresponding
Floor is not fixed, can be manually opened by operating personnel, realize traction chassis modularized production and it is simple, freely design cloth
It sets.
In addition, the traction chassis in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In the above-mentioned technical solutions, further, carrier frame specifically includes: the end carriage that is oppositely arranged and being oppositely arranged
Side bar, end carriage and side bar are successively end to end to surround frame structure.
In the technical scheme, carrier frame includes wide at least two butt beams being oppositely arranged along traction chassis, with
And it is long at least two side bars being oppositely arranged along traction chassis；End carriage and side bar are end to end, specifically, end carriage and side bar
It can be connected by welding, the both ends of every butt beam are connected with one end of two side bars respectively, and the two of every side bar
End is also connected with one end of two butt beams respectively, and end carriage and side bar are sequentially end to end, surround the frame structure of a rectangle, shape
At a stable carrier frame.
In any of the above-described technical solution, further, middle cross beam is set as multiple, multiple middle cross beam interval settings；With
And the both ends of middle cross beam are connected with two side bars respectively, middle cross beam is connected with middle stringer.
In the technical scheme, the quantity of middle cross beam is multiple, and the particular number of middle cross beam can be required according to chassis intensity,
And/or it requires freely to be arranged according to the size of grid.Setting, the interval distance between multiple middle cross beams are spaced between multiple middle cross beams
From that can be fixed value, can also specifically be arranged according to actual needs；Middle cross beam and it is connected with the middle stringer that it intersects, to guarantee
Draw the integral strength of chassis.
In any of the above-described technical solution, further, middle stringer is set as multiple, multiple middle stringer interval settings.
In the technical scheme, the quantity of middle stringer is multiple, and the particular number of middle stringer can be required according to chassis intensity,
And/or it requires freely to be arranged according to the size of grid.Setting, the interval distance between multiple middle stringers are spaced between multiple middle stringers
From that can be fixed value, can also specifically be arranged according to actual needs；Middle stringer and it is connected with the middle stringer that it intersects, Duo Gezhong
Stringer with multiple middle cross beams are intersected with each other be connected after form mesh grille, multiple floors are arranged in mesh grille.
In any of the above-described technical solution, further, chassis is drawn further include: bogie mounting rail is set to bottom
One end of disk frame, bogie mounting rail is connected with end carriage；Wheel cover is set on bogie mounting rail, and wheel cover is for being isolated
Carrier frame and bogie.
In the technical scheme, traction chassis is additionally provided with bogie mounting rail, for installing the bogie of tractor.
Bogie mounting rail is set to the both ends of carrier frame, is connected with end carriage.Wheel cover is provided on bogie mounting rail, wheel covers
Lid bogie simultaneously isolates bogie with carrier frame, to guarantee that tractor chassis structure is stablized, while guaranteeing operation people
The safety of member.
In any of the above-described technical solution, further, chassis is drawn further include: traction seat mounting rail, with bogie
The other end of mounting rail is connected；Traction seat is set on traction seat mounting rail, and traction seat is for connecting to towing vehicle.
In the technical scheme, traction chassis is provided with traction seat mounting rail, is connected with bogie mounting rail, draws
It is provided on seat mounting rail for connecting the traction seat to towing vehicle, to realize the traction function of tractor.Traction seat installation
Beam and traction seat are fixed on tractor carrier frame, so that hitch structure is more firm, tractor is when executing towage
Stress is more reasonable, improves the structural strength and driving power of tractor.
In any of the above-described technical solution, further, floor and middle cross beam or middle stringer are hinged.
In this embodiment, floor and middle cross beam or middle stringer are hinged.When needing load-bearing, floor passes through the modes such as bolt
It is anchored in grid, to ensure load-bearing capacity.When needing to be arranged operating personnel channel, without fastening, operating personnel can on floor
Floor is opened and closed by articulated structures such as hinge, foldings, realizes passing through for operating personnel.
In any of the above-described technical solution, further, chassis is drawn further include: lockset is set on floor, is used for
Floor latch is scheduled into grid.
In the technical scheme, it is provided with lockset on floor, floor is locked on grid.Specifically, it is provided with lockset
Floor as the channel passed through for operating personnel, when not needing operating personnel and passing through, lockset locks floor, mode floor
It is opened and closed repeatedly in vehicle operation because jolting, causes abrasion or personnel hazard.When vehicle arrival job site, operation people is needed
When member passes through floor, lockset is opened, floor is opened by articulated structures such as hinge, foldings, so that operating personnel passes through.
In any of the above-described technical solution, further, floor is bolted in middle cross beam and/or middle stringer by bolt.
In the technical scheme, it is fastened in such a way that bolt is spirally connected as the floor of weighing positions by middle cross beam in
On the grid that stringer is separated into, assembly method is simple, low in cost, Yi Shixian modularized production.
The second aspect of the present invention provides a kind of tractor, which includes as provided in any of the above-described technical solution
Traction chassis, therefore, the tractor include as provided in any of the above-described technical solution traction chassis whole it is beneficial
Effect.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 shows the structural schematic diagram of traction chassis according to an embodiment of the invention；
Fig. 2 shows the structural schematic diagrams of traction chassis according to another embodiment of the invention；
Fig. 3 shows the structural schematic diagram of traction chassis according to still another embodiment of the invention；
Fig. 4 shows the structural schematic diagram of the traction chassis of still another embodiment in accordance with the present invention.
Wherein, the appended drawing reference in Fig. 1 to Fig. 4 and the corresponding relationship between component names are as follows:
20 carrier frames, 22 end carriages, 24 side bars, 40 middle cross beams, stringer in 60,80 floors, 100 wheel covers, 120 traction seats peace
Fill beam, 122 traction seats.
Specific embodiment
To better understand the objects, features and advantages of the present invention, with reference to the accompanying drawing and specific real
Applying mode, the present invention is further described in detail.It should be noted that in the absence of conflict, the implementation of the application
Feature in example and embodiment can be combined with each other.
In the following description, numerous specific details are set forth in order to facilitate a full understanding of the present invention, still, the present invention may be used also
To be implemented using other than the one described here other modes, therefore, protection scope of the present invention is not by described below
Specific embodiment limitation.
The traction chassis described according to some embodiments of the invention and tractor are described referring to Fig. 1 to Fig. 4.
As shown in Figures 1 to 4, in the embodiment of first aspect present invention, a kind of traction chassis is provided, comprising:
Carrier frame；Middle cross beam is connected with carrier frame；Middle stringer, is connected with carrier frame, middle stringer and middle cross beam divider base
Disk frame is to form multiple grids；Floor is removably embedded in grid.
In this embodiment, traction chassis includes the carrier frame 20 as main body, is provided in frame interlaced
The middle cross beam 40 and middle stringer 60 of connection, middle cross beam 40 and middle stringer 60 will be separated into multiple grids, floor in carrier frame 20
80 are removably embedded in grid.Technical solution provided by the invention is applied, middle cross is staggeredly equipped in carrier frame 20
Beam 40 and middle stringer 60 ensure that the intensity of traction chassis, while middle cross in the case where not increasing tractor chassis weight
In the grid that beam 40 and middle stringer 60 are separated out, it is provided with dismountable floor module.Wherein it is possible to which the ruler of each grid is arranged
It is very little identical, the floor 80 of same size can be made to be suitable for the grid of all positions；Alternatively, the size of each grid can also be with
Size is changed according to actual needs, while being equipped with various sizes of floor 80, and design is simple, and can realize modularization cloth
It sets, wide usage is strong and low production cost.On traction chassis, the position of bearing goods or corresponding function component, ground are needed
Plate 80 is fastened on middle cross beam 40 and/or middle stringer 60, in the position for needing operating personnel to pass through, the retractable setting in floor 80,
Or floor 80 is erected in grid, operating personnel can manually opened corresponding floor 80, to form access path, convenient working people
Member executes upkeep operation.
Specifically, carrier frame 20 is rectangular frame, and middle cross beam 40, middle cross is arranged in the width direction inside rectangular frame
Beam 40 may be configured as the long side perpendicular to rectangular frame；Simultaneously in rectangular frame along its length setting in stringer 60, in indulge
Beam 60 may be configured as the broadside perpendicular to rectangular frame；In middle cross beam 40 perpendicular to the long side of rectangular frame, while middle stringer 60
Perpendicular to rectangular frame broadside in the case where, middle cross beam 40 and middle stringer 60 are mutually perpendicular to intersect, and are firmly connected to each other, with
Traction chassis is set to keep higher structural strength under the premise of overall weight is not added；Meanwhile middle cross beam 40 and middle stringer 60
After arranged in a crossed manner multiple grids will be separated into inside carrier frame 20；Floor 80 is modular floor, is set respectively in each grid
Floorboard 80 is set, shape and size and the grid on floor 80 match, and grid is sunk in 80 lower part of modular floor；It is needing to hold
The part of weight, chassis is fixedly linked with carrier frame 20, middle cross beam 40 and/or middle stringer 60；Needing reserved operating personnel logical
The place in road, corresponding floor 80 can be opened and closed by folding, or corresponding floor 80 is not fixed, can be manually opened by operating personnel,
Realize the modularized production for drawing chassis and simple, free design arrangement.
In addition, the traction chassis in above-mentioned technical proposal provided by the invention can also have following supplementary technology special
Sign:
In one embodiment of the invention, further, as depicted in figs. 1 and 2, carrier frame 20 specifically includes: phase
End carriage 22 to setting and the side bar 24 being oppositely arranged, end carriage 22 and side bar 24 are successively end to end to surround frame structure.
In this embodiment, carrier frame 20 includes wide at least two butt beams 22 being oppositely arranged along traction chassis,
And it is long at least two side bars 24 being oppositely arranged along traction chassis；End carriage 22 and side bar 24 are end to end, specifically, end
Beam 22 can be connected by welding with side bar 24, and the both ends of every butt beam 22 are connected with one end of two side bars 24 respectively
It connecing, the both ends of every side bar 24 are also connected with one end of two butt beams 22 respectively, and end carriage 22 and side bar 24 are sequentially end to end,
The frame structure of a rectangle is surrounded, a stable carrier frame 20 is formed.
In one embodiment of the invention, further, as depicted in figs. 1 and 2, middle cross beam 40 is set as multiple, more
The setting of a interval of middle cross beam 40；And the both ends of middle cross beam 40 are connected with two side bars 24 respectively, middle cross beam 40 and middle stringer
60 are connected.
In this embodiment, the quantity of middle cross beam 40 is multiple, and the particular number of middle cross beam 40 can be wanted according to chassis intensity
It asks, and/or requires freely to be arranged according to the size of grid.It is spaced and is arranged between multiple middle cross beams 40, between multiple middle cross beams 40
Spacing distance can be fixed value, can also specifically be arranged according to actual needs；Middle cross beam 40 and the middle stringer 60 to intersect with it
It is connected, to guarantee the integral strength of traction chassis.
In one embodiment of the invention, further, as depicted in figs. 1 and 2, middle stringer 60 is set as multiple, more
The setting of a interval of middle stringer 60.
In this embodiment, the quantity of middle stringer 60 is multiple, and the particular number of middle stringer 60 can be wanted according to chassis intensity
It asks, and/or requires freely to be arranged according to the size of grid.It is spaced and is arranged between multiple middle stringers 60, between multiple middle stringers 60
Spacing distance can be fixed value, can also specifically be arranged according to actual needs；Middle stringer 60 and the middle stringer 60 to intersect with it
Be connected, multiple middle stringers 60 with multiple middle cross beams 40 are intersected with each other be connected after form mesh grille, cloth are distinguished on multiple floors 80
It sets in mesh grille.
In one embodiment of the invention, further, as shown in Figure 1 to Figure 3, chassis is drawn further include: turn to
Frame mounting rail, is set to carrier frame 20, and one end of bogie mounting rail is connected with end carriage 22；Wheel cover 100 is set to steering
On frame mounting rail, wheel cover 100 is for being isolated carrier frame 20 and bogie.
In this embodiment, traction chassis is additionally provided with bogie mounting rail, for installing the bogie of tractor.Turn
It is set to the both ends of carrier frame 20 to frame mounting rail, is connected with end carriage 22.Wheel cover 100 is provided on bogie mounting rail,
Wheel cover 100 covers bogie and bogie is isolated with carrier frame 20, to guarantee that tractor chassis structure is stablized, simultaneously
Guarantee the safety of operating personnel.
In one embodiment of the invention, further, as shown in Figures 1 to 4, chassis is drawn further include: traction
Seat mounting rail 120, is connected with the other end of bogie mounting rail；Traction seat 122 is set on traction seat mounting rail 120, leads
Introduction 122 is for connecting to towing vehicle.
In this embodiment, traction chassis is provided with traction seat mounting rail 120, is connected with bogie mounting rail, leads
It is provided on introduction mounting rail 120 for connecting the traction seat 122 to towing vehicle, to realize the traction function of tractor.It leads
Introduction mounting rail 120 and traction seat 122 are fixed on tractor carrier frame 20, so that hitch structure is more firm, tractor
When executing towage, stress is more reasonable, improves the structural strength and driving power of tractor.
In one embodiment of the invention, further, floor 80 and middle cross beam 40 or middle stringer 60 are hinged.
In this embodiment, floor 80 and middle cross beam 40 or middle stringer 60 are hinged.When needing load-bearing, floor 80 passes through spiral shell
The modes such as bolt are anchored in grid, to ensure load-bearing capacity.When needing to be arranged operating personnel channel, floor 80 is not necessarily to fastening,
Operating personnel can open and close floor 80 by articulated structures such as hinge, foldings, realize passing through for operating personnel.
In one embodiment of the invention, further, chassis is drawn further include: lockset is set on floor 80,
For floor 80 to be locked in grid.
In this embodiment, it is provided with lockset on floor 80, floor 80 is locked on grid.Specifically, it is provided with lock
The floor 80 of tool is as the channel passed through for operating personnel, and when not needing operating personnel and passing through, lockset locks floor 80, side
Formula floor 80 opens and closes in vehicle operation because jolting repeatedly, causes abrasion or personnel hazard.When vehicle arrival job site, need
When wanting operating personnel by floor 80, lockset is opened, floor 80 is opened by articulated structures such as hinge, foldings, for operation people
Member passes through.
In one embodiment of the invention, further, floor 80 by bolt be bolted in middle cross beam 40 and/or in indulge
Beam 60.
In this embodiment, it is fastened in such a way that bolt is spirally connected as the floor of weighing positions 80 by 40 He of middle cross beam
On the grid that middle stringer 60 is separated into, assembly method is simple, low in cost, Yi Shixian modularized production.
In one embodiment of the invention, further, as shown in figure 3, floor 80 is subdivided into side floor, medially
Plate, wheel cover floor and end floor, wherein side floor close to carrier frame 20 long side, i.e., close to side bar 24, specifically, side
Four sides on floor are connected with 24, two middle cross beams 40 of side bar and a middle stringer 60 respectively；Intermediate floor is set to by described
In the grid that middle cross beam 40 and the middle stringer 60 separate, four sides of intermediate floor are indulged with two middle cross beams 40 and two respectively
Beam 60 is connected；Wheel cover floor is set to the two sides of wheel cover 100, and the size on wheel cover floor is matched with the size of wheel cover 100；End
Portion floor sets the broadside close to carrier frame 20, i.e., close to end carriage 22, four sides on end floor respectively with end carriage 22, side bar 24,
One middle cross beam 40 is connected with a kind of middle stringer 60.
In the embodiment of second aspect of the present invention, a kind of tractor is provided, which includes such as any of the above-described reality
The traction chassis provided in example is applied, therefore, which includes such as the traction chassis provided in above-mentioned any embodiment
Whole beneficial effects.
In description of the invention, term " multiple " then refers to two or more, unless otherwise restricted clearly, term
The orientation or positional relationship of the instructions such as "upper", "lower" is to be merely for convenience of retouching based on orientation or positional relationship described in attached drawing
It states the present invention and simplifies description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific
Orientation construction and operation, therefore be not considered as limiting the invention；Term " connection ", " installation ", " fixation " etc. should all
It is interpreted broadly, for example, " connection " may be fixed connection or may be dismantle connection, or integral connection；It can be straight
Connect it is connected, can also be indirectly connected through an intermediary.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the present invention, the description meaning of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Refer to that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present invention, schematic expression of the above terms are not necessarily referring to identical embodiment or example.And
And the particular features, structures, materials, or characteristics of description can be in any one or more of the embodiments or examples with suitable
Mode combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of traction chassis characterized by comprising
Carrier frame；
Middle cross beam is connected with the carrier frame；
Middle stringer is connected with the carrier frame, and the middle stringer separates the carrier frame with wherein the middle cross beam to be formed
Multiple grids；
Floor is removably embedded in the grid.
2. traction chassis according to claim 1, which is characterized in that the carrier frame specifically includes:
The end carriage being oppositely arranged and the side bar being oppositely arranged, the end carriage and the side bar are successively end to end to surround framework knot
Structure.
3. traction chassis according to claim 2, which is characterized in that wherein the middle cross beam is set as multiple, multiple described
The setting of middle cross beam interval；And
The both ends of wherein the middle cross beam are connected with two side bars respectively, and wherein the middle cross beam is connected with the middle stringer.
4. traction chassis according to claim 2, which is characterized in that the middle stringer is set as multiple, multiple described
Middle stringer interval setting.
5. traction chassis according to claim 2, which is characterized in that further include:
Bogie mounting rail, is set to the carrier frame, and one end of the bogie mounting rail is connected with the end carriage；
Wheel cover is set on the bogie mounting rail, and the wheel cover is for being isolated the carrier frame and bogie.
6. traction chassis according to claim 5, which is characterized in that further include:
Traction seat mounting rail is connected with the other end of the bogie mounting rail；
Traction seat is set on the traction seat mounting rail, and the traction seat is for connecting to towing vehicle.
7. traction chassis according to any one of claim 1 to 6, which is characterized in that the floor and wherein the middle cross
Beam or the middle stringer are hinged.
8. traction chassis according to claim 7, which is characterized in that further include:
Lockset is set on the floor, for the floor latch to be scheduled the grid.
9. traction chassis according to any one of claim 1 to 6, which is characterized in that the floor passes through bolt spiral shell
It is connected to wherein the middle cross beam and/or the middle stringer.
10. a kind of tractor characterized by comprising
Traction chassis as claimed in any one of claims 1-9 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910231083.8A CN109910937A (en) | 2019-03-26 | 2019-03-26 | Draw chassis and tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910231083.8A CN109910937A (en) | 2019-03-26 | 2019-03-26 | Draw chassis and tractor |
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| CN109910937A true CN109910937A (en) | 2019-06-21 |
Family
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| CN201910231083.8A Pending CN109910937A (en) | 2019-03-26 | 2019-03-26 | Draw chassis and tractor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110774966A (en) * | 2019-11-15 | 2020-02-11 | 成都伯航科技有限公司 | Embedded maintenance vehicle with navigation aid lamp |
| CN112406922A (en) * | 2020-12-11 | 2021-02-26 | 中车资阳机车有限公司 | Floor beam structure of modularized cab of shunting locomotive |
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