CN111717288B - Front frame and vehicle - Google Patents
Front frame and vehicle Download PDFInfo
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- CN111717288B CN111717288B CN202010706258.9A CN202010706258A CN111717288B CN 111717288 B CN111717288 B CN 111717288B CN 202010706258 A CN202010706258 A CN 202010706258A CN 111717288 B CN111717288 B CN 111717288B
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- 230000003014 reinforcing effect Effects 0.000 claims description 15
- 230000005484 gravity Effects 0.000 abstract description 6
- 230000008878 coupling Effects 0.000 description 9
- 238000010168 coupling process Methods 0.000 description 9
- 238000005859 coupling reaction Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 9
- 238000005452 bending Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/18—Understructures, i.e. chassis frame on which a vehicle body may be mounted characterised by the vehicle type and not provided for in groups B62D21/02 - B62D21/17
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
本发明公开了一种前车架及车辆，涉及牵引车技术领域。该前车架包括铰接板、两个侧板，以及支撑组件和平衡重，其中铰接板沿水平方向延伸且用于与后车架连接，两个侧板分别连接于铰接板的沿车宽方向的两侧，两个侧板均与支撑组件连接，支撑组件包括支撑平面，支撑组件位于铰接板沿车长方向的前侧，支撑平面位于铰接板的上端面的下方；平衡重包括第一部分和第二部分，第一部分的重量大于第二部分的重量，第一部分支撑于支撑平面且第二部分支撑于铰接板的上端面。通过铰接板、两个侧板和支撑组件组成箱体式车架，能够提高该前车架的结构强度；该前车架形成的前低后高的支撑平台能够使平衡重的重心前移，从而能够满足该前车架的载荷的合理分布。
The present invention discloses a front frame and a vehicle, and relates to the technical field of tractors. The front frame includes a hinge plate, two side plates, a support assembly and a counterweight, wherein the hinge plate extends in a horizontal direction and is used to connect with a rear frame, the two side plates are respectively connected to the two sides of the hinge plate along the vehicle width direction, and the two side plates are connected to the support assembly, the support assembly includes a support plane, the support assembly is located at the front side of the hinge plate along the vehicle length direction, and the support plane is located below the upper end surface of the hinge plate; the counterweight includes a first part and a second part, the weight of the first part is greater than the weight of the second part, the first part is supported on the support plane and the second part is supported on the upper end surface of the hinge plate. The box-type frame is formed by the hinge plate, the two side plates and the support assembly, so that the structural strength of the front frame can be improved; the front low and rear high support platform formed by the front frame can move the center of gravity of the counterweight forward, so as to meet the reasonable distribution of the load of the front frame.
Description
Technical Field
The invention relates to the technical field of tractors, in particular to a front frame and a vehicle.
Background
The track tractor is an important construction device in the railway transportation process, and is particularly suitable for short-distance transportation of cargoes. With the development of rail transportation technology, the loading capacity of trucks is increasing, which puts higher demands on the traction capacity of the tractor. The front frame is used as one of the main stress parts of the tractor, the coupler arranged at the front end of the front frame is connected with the truck, the rear end of the front frame is connected with the rear frame of the whole tractor, so that the force transmission is realized, and the reliability of the front frame is directly related to the overall strength and operation safety of the truck body.
The tractor is restricted by a plurality of parts such as frame, coupling, transaxle, and the balanced heavy of weight is difficult to arrange in the automobile body place ahead, leads to when pulling heavy cargo vehicle, and the front axle load distribution of tractor reduces sharply, appears the phenomenon that tire skidded even locomotive perk easily, has both influenced the performance of whole car traction force, brings serious security threat again for the construction. In the prior art, some tractors are provided with a balancing weight in front of a vehicle body in a mode of lengthening the vehicle frame, but the bending resistance and the torsion resistance of the vehicle frame are reduced, the phenomenon of cracking of welding seams of the vehicle frame and even damage of plates occurs, and the working reliability is greatly reduced.
Disclosure of Invention
The invention aims to provide a front frame which can provide an arrangement space for a counterweight, so that the gravity center of the counterweight moves forward and the use requirement is met.
To achieve the purpose, the invention adopts the following technical scheme:
A front frame, comprising:
The hinged plate extends along the horizontal direction and is used for being connected with the rear frame;
The two side plates are respectively connected to two sides of the hinge plate along the width direction of the vehicle;
The support assembly is connected with the two side plates, is positioned on the front side of the hinge plate in the vehicle length direction and comprises a support plane, and the support plane is positioned below the upper end surface of the hinge plate;
the balancing weight comprises a first part and a second part, the weight of the first part is larger than that of the second part, the first part is supported on the supporting plane, and the second part is supported on the upper end face of the hinge plate.
Optionally, the support assembly includes two support pieces that set up along the vehicle width direction interval, two support pieces respectively with two curb plate is connected, the supporting plane includes two support piece's up end.
Optionally, the front frame further includes two webs, two webs are disposed between the two side plates at intervals and are both connected with the hinge plates, and two webs are respectively connected with two supporting members.
Optionally, the front frame further comprises a cross beam, the cross beam is arranged between the two webs, and two ends of the cross beam are fixedly connected with the two webs respectively.
Optionally, the front frame further includes a baffle that extends along the horizontal direction, the baffle with support piece along vertical direction interval set up in the both ends of web, the both sides of baffle are connected respectively in two the top of web, the baffle with two the web encloses and establishes into the holding tank, the holding tank is used for acceping the coupling.
Optionally, a coupler installation seat is arranged in the accommodating groove, the coupler installation seat is fixedly connected with the two webs, and the coupler installation seat is used for fixing the coupler.
Optionally, the front frame further comprises a front plate, two supporting pieces and two webs are connected with the front plate, and the front plate is provided with an opening, and the opening is communicated with the accommodating groove.
Optionally, the front frame further comprises two reinforcing plates, two webs are located between the two reinforcing plates, and the reinforcing plates are fixedly connected with the front plate, the supporting piece and the webs respectively.
Optionally, the support piece include the backup pad and with two risers that the backup pad is connected, two the riser interval sets up, backup pad and two the riser all with the front bezel is connected, the riser with the reinforcing plate set up respectively in the both sides of backup pad, the web with the curb plate all connect in the backup pad, the supporting plane includes the up end of backup pad.
Another object of the present invention is to provide a vehicle, in which the front frame can provide an arrangement space for the counterweight, so that the center of gravity of the counterweight is moved forward, thereby meeting the use requirement.
To achieve the purpose, the invention adopts the following technical scheme:
A vehicle comprises the front frame.
The front frame has the advantages that the front frame is connected with the rear frame through the hinge plates, the box type frame structure is formed by the hinge plates, the two side plates and the supporting component, the structural strength of the front frame can be improved, the reliability of the front frame in operation is guaranteed, meanwhile, the supporting plane of the supporting component is lower than the upper end face of the hinge plates in the vertical direction, the first part of the balancing weight is supported on the supporting plane, the second part of the balancing weight is supported on the upper end face of the hinge plates, namely, the front frame can form a supporting platform with the front lower part and the rear higher part for installing the balancing weight, meanwhile, the weight of the first part of the balancing weight is larger than that of the second part of the balancing weight, the gravity center of the balancing weight on the front frame can be moved forward, the reasonable distribution of the load of the front frame can be met, in addition, the size of the balancing weight exposed above the frame can be reduced, and the operation view of a driver can be effectively improved.
Drawings
FIG. 1 is a schematic view of a front frame according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a front frame according to a second view angle of the present invention.
In the figure:
1-hinged plate, 2-side plate;
3-supporting piece, 31-supporting plate, 311-first transverse plate, 312-second connecting plate and 313-second transverse plate;
32-vertical plates and 33-connecting ribs;
4-web plate, 41-first riser, 42-first connecting plate, 43-second riser;
5-cross beam, 6-baffle, 7-coupler installation seat;
8-front plate, 81-opening;
9-reinforcing plates, 10-lower bottom plates and 11-third connecting plates.
Detailed Description
In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, unless explicitly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may, for example, be fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features 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 invention is further described below by the specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the front frame comprises a hinge plate 1, two side plates 2, and a supporting assembly and a counterweight, wherein the hinge plate 1 extends along the horizontal direction and is used for being connected with the rear frame, the two side plates 2 are respectively connected to two sides of the hinge plate 1 along the vehicle width direction (a direction in fig. 1), the two side plates 2 are connected with the supporting assembly, the supporting assembly is positioned on the front side of the hinge plate 1 along the vehicle length direction (b direction in fig. 1), the supporting assembly comprises a supporting plane, the supporting plane is positioned below the upper end face of the hinge plate 1, the counterweight comprises a first part and a second part, the weight of the first part is larger than that of the second part, and the first part is supported on the supporting plane and the second part is supported on the upper end face of the hinge plate 1. It can be understood that the truss frame structure is formed by the hinge plates 1, the two side plates 2 and the support assembly, so that the structural strength of the front frame can be improved, the height of the support plane of the support assembly is lower than the upper end face of the hinge plates 1 in the vertical direction, the first part of the counterweight is supported on the support plane, and the second part of the counterweight is supported on the upper end face of the hinge plates 1, namely, the front frame can form a supporting platform with a lower front part and a higher rear part for installing the counterweight, and meanwhile, the weight of the first part of the counterweight is larger than that of the second part of the counterweight, so that the gravity center of the counterweight on the front frame can be moved forward, the reasonable distribution of the load of the front frame can be met, the phenomenon of front tilting caused by insufficient load of the front frame can be avoided, in addition, the size of the counterweight exposed above the frame can be reduced, and the operation view of a driver can be effectively improved.
In the embodiment, the hinge plate 1 is provided with a connecting lug which is in pin joint with the rear frame through a pin, and meanwhile, the hinge plate 1 and the support component are provided with connecting holes which are connected with the counterweight through bolts. In order to further improve the structural strength of the front frame, the two side plates 2 are vertically fixedly connected with the hinge plates 1 and the supporting component, and in order to reduce the weight of the front frame, the two side plates 2 are provided with lightening holes, and the shape, the size and the number of the lightening holes are not limited.
In this embodiment, the first portion and the second portion of the counterweight are connected, and the first portion and the second portion form a stepped shape, and in order to further improve the operation field of view of the driver, the upper end face of the first portion is lower than the upper end face of the second portion. In other embodiments, the first and second portions of the counterweight may not be connected, and the upper end surface of the first portion and the upper end surface of the second portion may be flush.
Specifically, as shown in fig. 2, the front frame further includes a lower plate 10, the lower plate 10 extends in a horizontal direction and is disposed at two sides of the side plates 2 along a vertical direction with the hinge plates 1 at intervals, and both side plates 2 are vertically connected with the lower plate 10. In this embodiment, the lower plate 10 and the hinge plate 1 are oppositely disposed, and the lower plate 10 is also provided with connection lugs, so that when the rear frame is connected, the connection lugs of the rear frame are placed between the connection lugs of the hinge plate 1 and the lower plate 10, and then are connected through pins, so that the connection is reliable. In other embodiments, the hinge plate 1 and the rear frame may be connected, or the lower plate 10 may not be provided.
Alternatively, the support assembly includes two support pieces 3 disposed at intervals in the vehicle width direction, the two support pieces 3 being connected with the two side plates 2, respectively, and the support plane including upper end surfaces of the two support pieces 3. In this embodiment, the first portion of the counterweight is supported on the upper end surfaces of two supporting members 3, and the two supporting members 3 are respectively connected perpendicularly to the two side plates 2. In other embodiments, the support 3 may be connected to the side plate 2 non-perpendicularly.
Optionally, as shown in fig. 1 and 2, the front frame further includes two webs 4, where the two webs 4 are disposed between the two side plates 2 at intervals and are connected to the hinge plates 1, and the two webs 4 are connected to the two supporting members 3 respectively. Specifically, to improve structural stability of the front frame, both webs 4 are vertically connected with the hinge plates 1, and both webs 4 are vertically connected with the two supports 3, respectively. In this embodiment, the hinge plate 1 and the lower plate 10 are each U-shaped plates, and each of two sides of the two U-shaped plates is vertically connected to the side plate 2 and the web plate 4. In other embodiments, the hinge plate 1 and the lower plate 10 may have other shapes.
Optionally, as shown in fig. 1, the front frame further includes a cross member 5, where the cross member 5 is disposed between the two webs 4, and two ends of the cross member 5 are fixedly connected with the two webs 4 respectively. It will be appreciated that the structural stability of the front frame can be further ensured by the connection of the cross member 5 with the webs 4 on both sides, and the bending and torsion resistance of the front frame is improved, thereby improving the service life of the front frame. As for the shape and number of the cross members 5, there are no restrictions, and they may be selected adaptively according to the use requirements.
Preferably, the projection of the web 4 on the horizontal plane is Z-shaped. In this embodiment, in order to maintain the overall continuity of the web 4 and improve the reliability of the web 4, the web 4 is integrally bent and formed, and includes a first riser 41, a first connecting plate 42 and a second riser 43 that are sequentially connected, where the first riser 41 is vertically connected with the hinge plate 1 and the lower base plate 10, the second riser 43 is vertically connected with the supporting member 3, and two ends of the cross beam 5 are respectively fixedly connected with the two first risers 41. By varying the degree of bending of the web 4, the distance between the two first risers 41 and the two second risers 43 can be varied, so that the length of the required cross member 5 can be varied to vary the overall structure of the front frame. In other embodiments, the web 4 may be welded sequentially to the first riser 41, the first connecting plate 42, and the second riser 43 without integrally bending the web.
Optionally, as shown in fig. 1, the front frame further includes a baffle 6 extending along a horizontal direction, the baffle 6 and the supporting member 3 are disposed at two ends of the web plates 4 along a vertical direction at intervals, two sides of the baffle 6 are respectively connected to top ends of the two web plates 4, and the baffle 6 and the two web plates 4 enclose a containing groove for containing a coupler. It will be appreciated that the connection stiffness of the webs 4 on both sides can be enhanced by the connection of the baffles 6 to the webs 4 on both sides, preventing deformation of the webs 4 in the event of high stresses. In this embodiment, the both sides of baffle 6 are connected perpendicularly with second riser 43 respectively and enclose to establish into the holding tank, are equipped with the trompil simultaneously on baffle 6, can make things convenient for the free dismantlement of coupling connecting pin, have increased the convenience of maintenance.
Specifically, as shown in fig. 2, a coupler installation seat 7 is arranged in the accommodating groove, the coupler installation seat 7 is fixedly connected with the two webs 4, and the coupler installation seat 7 is used for fixing a coupler. It will be appreciated that the purpose of securing the coupler in the receiving slot is achieved by the coupler mount 7. In this embodiment, the coupler mounting seat 7 includes two sets of stop blocks that the interval set up, places the coupler between two sets of stop blocks to prevent that the coupler from receiving the effect of tensile force and following car length direction round trip movement, and can guarantee easy dismounting. In addition, still be provided with the antifriction plate in the holding tank, when the coupling is fixed in coupling mount pad 7, the antifriction plate is located between coupling and the second riser 43, can prevent that the coupling from directly contacting with second riser 43, causes second riser 43 wearing and tearing, simultaneously, also can play spacing effect to the installation of coupling through the antifriction plate of coupling both sides. In other embodiments, the coupler fixing seat 7 may have other structures, and only the coupler needs to be fixed, or no wear plate is required.
Alternatively, as shown in fig. 1 and 2, the front frame further comprises a front plate 8, both the support members 3 and the webs 4 being connected to the front plate 8, the front plate 8 being provided with an opening 81, the opening 81 being in communication with the receiving slot. It will be appreciated that the front plate 8 can connect the two support members 3 together, thereby improving the structural strength of the front frame, and that the front plate 8 is provided with an opening 81, and that the coupler can extend from the opening 81 to be connected with external equipment when mounted in the receiving slot. In this embodiment, the front plate 8 is vertically connected to the two second risers 43 by welding and is vertically connected to the two supporting members 3 by welding, and the front frame further includes a coupler impact seat fixed to a side of the front plate 8 away from the supporting members 3. In other embodiments, the front plate 8 is fastened to the two second risers 43 and the two supports 3 in other ways.
Optionally, as shown in fig. 1, the front frame further includes two reinforcing plates 9, and the two webs 4 are located between the two reinforcing plates 9, where the reinforcing plates 9 are fixedly connected with the front plate 8, the support member 3, and the webs 4, respectively. It will be appreciated that the tensile strength of the front panel 8 can be further increased by the reinforcing panel 9, preventing the front panel 8 from deforming during use to cause tearing of the weld seam between the two webs 4 and the two supports 3, thereby enabling an increase in the service life of the front frame. In this embodiment, the reinforcing plate 9 is bent into an L shape, and one side thereof is welded to the front plate 8, the other side thereof is welded to the support 3, and the side thereof is welded to the second riser 43. In other embodiments, other shapes for the stiffening plate 9 are also possible.
Alternatively, as shown in fig. 2, the supporting member 3 includes a supporting plate 31 and two vertical plates 32 connected with the supporting plate 31, the two vertical plates 32 are arranged at intervals, the supporting plate 31 and the two vertical plates 32 are all vertically connected with the front plate 8, the vertical plates 32 and the reinforcing plate 9 are respectively arranged at two sides of the supporting plate 31, the web 4 and the side plate 2 are all connected with the supporting plate 31, and the supporting plane includes an upper end face of the supporting plate 31. It will be appreciated that the supporting member 3 forms a box structure through the supporting plate 31 and the vertical plate 32, so that the structural strength of the supporting member 3 can be further improved, and the overall strength of the whole front frame can be improved. In this embodiment, the second riser 43 is connected with the backup pad 31 perpendicularly, and support 3 still includes two connecting bars 33 that set up between two risers 32 along the length direction interval of riser 32, and connecting bar 33 vertical fixation is on backup pad 31, and both sides respectively with two risers 32 welding, can further guarantee the structural stability of box support 3 through connecting bar 33. In other embodiments, the number of the connecting ribs 33 may be increased or decreased according to different requirements, or the connecting ribs 33 may not be provided.
Specifically, the projection of the support plate 31 on the vertical plane is Z-shaped. In this embodiment, in order to maintain the overall continuity of the support plate 31 and improve the reliability of the support plate 31, the support plate 31 is integrally formed by bending, and includes a first transverse plate 311, a second connecting plate 312 and a second transverse plate 313 which are sequentially connected, the first transverse plate 311 and the second connecting plate 312 are all vertically connected with the side plate 2, the second vertical plate 43, the reinforcing plate 9, the front plate 8 and the two vertical plates 32 are all vertically connected with the second transverse plate 313, and the support plane is the upper end face of the second transverse plate 313. The height difference between the second transverse plate 313 and the first transverse plate 311 can be changed according to the bending degree of the supporting plate 31, so that the height difference between the second transverse plate 313 and the hinged plate 1 can be adjusted to adapt to different counterweights, and meanwhile, the height of the accommodating groove from the ground can be adjusted, so that the installation height of the coupler can be changed to adapt to the coupler height requirements of different railcars. In addition, the second connecting plate 312 is used for connecting with a drive axle, and two ends of the drive axle are connected with wheels. In other embodiments, the support plate 31 may be welded sequentially to the first transverse plate 311, the second connecting plate 312, and the second transverse plate 313 without integrally bending.
In this embodiment, the front frame further includes two third connecting plates 11, each third connecting plate 11 is obliquely disposed along a horizontal direction, and two sides of the third connecting plate are respectively and vertically fixedly connected with the side plate 2 and the second vertical plate 43, and the third connecting plate 11 is further fixedly connected with the second transverse plate 313. The structural stability of the front frame can be further improved by the third connecting plate 11, and the service life of the front frame can be further prolonged. In other embodiments, the third connection plate 11 may not be provided.
The front frame provided by the embodiment forms a box frame structure through the hinge plates 1, the two side plates 2 and the two supporting pieces 3, so that the structural strength of the front frame can be improved, meanwhile, the two supporting pieces 3 are arranged into the box structure, the reliability of the front frame in working can be further ensured, the supporting plate 31 is arranged into a bending structure, the height of the upper end surfaces of the two second transverse plates 313 in the vertical direction is lower than that of the hinge plates 1, the front frame can form a supporting platform with lower front and higher rear to install a counterweight, meanwhile, the weight of the first part of the counterweight is larger than that of the second part, the gravity center of the counterweight can be moved forward, so that the reasonable distribution of the front axle load of the front frame can be met,
The embodiment also provides a vehicle, which comprises the front frame. In this embodiment, this vehicle is the track tractor, through the structure setting of preceding frame, can make the focus forward shift of balanced heavy to can satisfy the rational distribution of the front axle load of this preceding frame, avoid using the track tractor of this preceding frame to skid and even the phenomenon that the locomotive wanes because of the insufficient tire of appearing of front axle load.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. 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 invention are desired to be protected by the following claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706258.9A CN111717288B (en) | 2020-07-21 | 2020-07-21 | Front frame and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010706258.9A CN111717288B (en) | 2020-07-21 | 2020-07-21 | Front frame and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111717288A CN111717288A (en) | 2020-09-29 |
| CN111717288B true CN111717288B (en) | 2025-01-28 |
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| CN202010706258.9A Active CN111717288B (en) | 2020-07-21 | 2020-07-21 | Front frame and vehicle |
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| CN (1) | CN111717288B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212401357U (en) * | 2020-07-21 | 2021-01-26 | 山东临工工程机械有限公司 | Preceding frame and vehicle |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465293A (en) * | 1982-10-28 | 1984-08-14 | Envirotech Corporation | Vehicle oscillation lock |
| JP6198657B2 (en) * | 2014-03-28 | 2017-09-20 | 株式会社クボタ | Tractor |
| CN106219447A (en) * | 2016-09-13 | 2016-12-14 | 福建闽工机械有限公司 | A kind of balanced type rear wheel drive forklift truck of automatic adjustment center of gravity |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212401357U (en) * | 2020-07-21 | 2021-01-26 | 山东临工工程机械有限公司 | Preceding frame and vehicle |
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