CN116080762A - Vehicle chassis and mining dump truck - Google Patents
Vehicle chassis and mining dump truck Download PDFInfo
- Publication number
- CN116080762A CN116080762A CN202310135425.2A CN202310135425A CN116080762A CN 116080762 A CN116080762 A CN 116080762A CN 202310135425 A CN202310135425 A CN 202310135425A CN 116080762 A CN116080762 A CN 116080762A
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- China
- Prior art keywords
- support
- main frame
- rotary
- vehicle chassis
- frame
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Classifications
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- 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
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/004—Mounting arrangements for axles
- B60B35/005—Mounting arrangements for axles with adaptations at chassis structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
Abstract
The invention belongs to the technical field of vehicle chassis, and particularly relates to a vehicle chassis and a mining dump truck. The vehicle chassis comprises a main frame, an auxiliary frame and an axle housing, wherein an auxiliary frame is arranged below the front end and the rear end of the main frame respectively, the auxiliary frame positioned at the front end of the main frame and the auxiliary frame positioned at the rear end of the main frame are both in rotary connection with the main frame, and the rotary motion of the auxiliary frame at the front end relative to the main frame and the rotary motion of the auxiliary frame at the rear end relative to the main frame are independently controlled. The front-end auxiliary frame is hinged with the axle housing at the front end of the main frame, and a suspension system is arranged between the front-end auxiliary frame and the axle housing at the front end; the auxiliary frame at the rear end is hinged with the axle housing at the rear end of the main frame, and another suspension system is arranged between the auxiliary frame at the rear end and the axle housing at the rear end. According to the invention, through optimizing the structural layout of the vehicle chassis, the front tires and the rear tires can be independently controlled to steer and the vehicle chassis can run bidirectionally, so that the turning radius is reduced, and the damage of frequent steering to the frame and the axle housing is reduced.
Description
Technical Field
The invention belongs to the technical field of vehicle chassis, and particularly relates to a vehicle chassis and a mining dump truck.
Background
The mining dump truck is mainly used for mining transportation of surface mines, along with technological development, the mining and transportation are developed towards intellectualization and high efficiency, the mining dump truck used at present mainly has middle and small tonnage of manned, about 1/3 of a power system and a driving platform position are required to be reserved on the whole vehicle layout, the development is limited on the aspect of super tonnage, and meanwhile, the frame torsion damage caused by frequent turning on the mine road condition reduces the structural reliability, and the loading tonnage and the structural reliability are improved.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the vehicle chassis and the mining dump truck, the bidirectional running can be realized by optimizing the structural layout of the vehicle chassis, and in addition, a driving platform is omitted through remote control, so that the ultra-large tonnage load is realized, and the transportation efficiency and the reliability are improved.
The invention is realized by the following technical scheme: a vehicle chassis comprises a main frame, auxiliary frames and axle housings, wherein an auxiliary frame is arranged below the front end and the rear end of the main frame respectively, and the two auxiliary frames are in rotary connection with the main frame; the two auxiliary frames are hinged with the axle housings matched with each other, and a suspension system is arranged between the auxiliary frames and the axle housings.
In some embodiments, a rotary support upper support is arranged on the main frame, a rotary support lower support is arranged on the auxiliary frame, the rotary support lower support is connected with the rotary support upper support through a central rotary body, and the rotary movement of the rotary support lower support relative to the rotary support upper support is controlled through a driving system in transmission connection with the rotary support lower support.
In some embodiments, the central revolving body comprises a revolving body inner ring and a revolving body outer ring, wherein the revolving body inner ring is fixed with a revolving support lower support, the revolving body outer ring is fixed with a revolving support upper support, and the revolving body inner ring and the revolving body outer ring are sequentially provided with an upper tapered roller, a middle cylindrical roller and a lower tapered roller from top to bottom along the axial direction.
In some embodiments, the drive system includes a swing motor, the swing support lower mount further having a lower swing support gear connected thereto, the swing motor in driving connection with the lower swing support gear.
In some embodiments, the driving system further comprises a steering cylinder, the left side and the right side of the auxiliary frame are respectively provided with an auxiliary frame steering cylinder support, each auxiliary frame steering cylinder support is hinged with one steering cylinder, and one end of the steering cylinder, which is far away from the auxiliary frame steering cylinder support, is hinged with the main frame.
In some embodiments, a plurality of main frame suspension supports are arranged in a rectangular shape below the middle part of the main frame, and each main frame suspension support is connected with the power system through a corresponding suspension.
In some embodiments, the suspension system further comprises a tie rod arranged along the axle housing, one end of the tie rod is hinged with the axle housing, the other end of the tie rod is hinged with the auxiliary frame, and the suspension system is an active suspension system.
In some embodiments, the track rod is a telescoping rod.
The invention also provides a mining dump truck, which comprises a container, a lifting oil cylinder and the vehicle chassis; one side of the container is hinged with one side of the main frame, and the lifting oil cylinder is arranged between the other side of the container and the other side of the main frame.
In some embodiments, the upper surface of the main frame is provided with a shock absorbing rubber pad.
In some embodiments, the vehicle further comprises a tie rod arranged along the axle housing, one end of the tie rod is hinged with the axle housing, and the other end of the tie rod is hinged with the auxiliary frame.
In some embodiments, the main frame is in a front-to-rear symmetrical structure, and the cargo box is symmetrically arranged above the main frame.
The beneficial effects of the invention are as follows: according to the invention, through optimizing the structural layout of the vehicle chassis and the whole vehicle structure, the front tires and the rear tires can be independently controlled to steer and the vehicle chassis can run bidirectionally through design, so that the turning radius is reduced, and the damage of frequent steering to the vehicle frame and the axle housing is reduced. In addition, the driving platform is canceled to adopt a straight-through container, the volume and the load balance are increased, the lateral lifting of the container and the cooperation of a suspension system realize the stability of the posture of the whole vehicle during lifting, the lifting energy consumption is reduced, the stability of the whole vehicle is ensured, the reliability of the whole vehicle structure is improved, and the transportation efficiency of mines is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a schematic perspective view of the present invention;
FIG. 3 is a schematic view of the structure of the present invention (with the cargo box removed);
FIG. 4 is a schematic view of the structure of the present invention (with the cargo box, main frame removed);
FIG. 5 is a schematic view of the structure of the central revolution body of the present invention;
FIG. 6 is a schematic view of the subframe structure of the present invention;
FIG. 7 is a schematic view of the construction of the tie rod;
in the figure, 1, a main frame, 1-1, a damping rubber pad, 1-2, a main frame hinged support, 1-3, a main frame lifting cylinder support, 1-4, a main frame steering cylinder support, 1-5, a main frame suspension support, 1-6, a slewing support upper support, 1-7, a slewing motor, 2, an auxiliary frame, 2-1, a slewing support lower support, 2-2, an auxiliary frame steering cylinder support, 2-3, an auxiliary frame traction support, 2-4, a suspension cylinder upper support, 2-5, an auxiliary frame transverse pull rod support, 2-6, a lower slewing support gear, 3, an axle housing, 3-1, an axle housing traction support, 3-2 and a suspension cylinder lower support, 3-3, wheel rim, 3-4, axle housing tie rod support, 4, container, 4-1, container lifting oil cylinder support, 4-2, container hinged support, 5, power system, 5-1, power system suspension support, 6, wheel rim motor and speed reducer assembly, 7, lifting oil cylinder, 8, suspension system, 9, steering oil cylinder, 10, suspension, 11, pin I, 12, tie rod, 13, pin II, 14, central revolving body, 14-1, revolving body inner ring, 14-2, revolving body outer ring, 14-3, upper tapered roller, 14-4, middle cylindrical roller, 14-5, lower tapered roller, 15 and tire.
Description of the embodiments
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1 to 7, a vehicle chassis comprises a main frame 1, an auxiliary frame 2 and an axle housing 3, wherein the main frame 1 is used as a bearing structure of the whole vehicle, and is preferably in a front-back symmetrical and straight-through design. The auxiliary frame 2 is respectively arranged below the front end and the rear end of the main frame 1, the auxiliary frame 2 positioned at the front end of the main frame 1 and the auxiliary frame 2 positioned at the rear end of the main frame 1 are in rotary connection with the main frame 1, the rotary motion of the auxiliary frame 2 at the front end relative to the main frame 1 and the rotary motion of the auxiliary frame 2 at the rear end relative to the main frame 1 are independently controlled, and the relative rotary motion of the auxiliary frame 2 at the front end and/or the relative rotary motion of the auxiliary frame 2 at the rear end can be controlled by combining actual working situations. The front auxiliary frame 2 is hinged with the axle housing 3 at the front end of the main frame 1, and a suspension system 8 is arranged between the front auxiliary frame 2 and the front axle housing 3; the auxiliary frame 2 at the rear end is hinged with the axle housing 3 at the rear end of the main frame 1, and another suspension system 8 is arranged between the auxiliary frame 2 at the rear end and the axle housing 3 at the rear end. The wheel rims 3-3 on the left side and the right side of the axle housing 3 are connected with the tire 15 through a wheel rim motor and a speed reducer assembly 6. The axle housing 3 at the front end and the axle housing 3 at the rear end of the vehicle chassis can be used as driving, the vehicle chassis is applied to the engineering vehicle to realize bidirectional running of the engineering vehicle, and under the condition that vehicle turning operation cannot be realized in a region with narrower terrain, normal operation of the engineering vehicle is realized through the vehicle chassis capable of bidirectional running. In addition, through adjusting the rotation of the front auxiliary frame 2 relative to the main frame 1 and/or the rotation of the rear auxiliary frame 2 relative to the main frame 1, the running direction of the corresponding tire 15 can be changed, and for some complex terrains, the turning radius of the engineering vehicle with the vehicle chassis can be reduced, so that smooth passing can be realized.
In some embodiments, as shown in fig. 3 to 6, the swivel connection between the main frame 1 and the sub-frame 2 may be: the main frame 1 is provided with a rotary support upper support 1-6, the auxiliary frame 2 is provided with a rotary support lower support 2-1, the rotary support lower support 2-1 is connected with the rotary support upper support 1-6 through a central rotary body 14, and the rotary motion of the rotary support lower support 2-1 relative to the rotary support upper support 1-6 is controlled through a driving system in transmission connection with the rotary support lower support 2-1. As shown in fig. 5, the central revolving body 14 includes a revolving body inner ring 14-1 and a revolving body outer ring 14-2, the revolving body inner ring 14-1 is welded and fixed with a revolving support lower support 2-1, the revolving body outer ring 14-2 is welded and fixed with a revolving support upper support 1-6, and the revolving body inner ring 14-1 and the revolving body outer ring 14-2 are sequentially provided with an upper tapered roller 14-3, a middle cylindrical roller 14-4 and a lower tapered roller 14-5 from top to bottom along the axial direction. The axial and radial bearing capacity of the vehicle chassis is improved by adopting three rows of roller slewing bearings of the upper tapered roller 14-3, the middle cylindrical roller 14-4 and the lower tapered roller 14-5.
In some embodiments, the driving system for controlling the action of the rotary support lower support seat 2-1 comprises a rotary motor 1-7, the rotary support lower support seat 2-1 is also connected with a lower rotary support gear 2-6, and the rotary motor 1-7 is in transmission connection with the lower rotary support gear 2-6. The power output by the rotary motor 1-7 is transmitted to the lower rotary support gear 2-6, and the lower rotary support gear 2-6 drives the rotary support lower support 2-1 to rotate relative to the rotary support upper support 1-6, so that the auxiliary frame 2, the bridge shell 3 connected with the auxiliary frame 2 and the tyre 15 connected with the bridge shell 3 are driven to do rotary motion relative to the main frame 1.
In some embodiments, as shown in fig. 1, 2, 4, 6 and 7, the driving system further includes a steering cylinder 9, a sub-frame steering cylinder support 2-2 is respectively disposed on the left side and the right side of the sub-frame 2, one steering cylinder 9 is hinged to each sub-frame steering cylinder support 2-2, one end of the steering cylinder 9 away from the sub-frame steering cylinder support 2-2 is hinged to the main frame 1, a main frame steering cylinder support 1-4 is disposed in the middle of the main frame 1, and the steering cylinder 9 is hinged to the main frame steering cylinder support 1-4. The steering cylinders 9 on the left side and the right side of the auxiliary frame 2 are controlled to perform a telescopic motion, and the auxiliary frame 2 can be matched with the rotary motors 1-7 to assist the rotary motion of the auxiliary frame 2 relative to the main frame 1. The axle housing 3 drives the tire 15 through the wheel motor and speed reducer assembly 6 to realize running of the vehicle chassis, and when steering, the wheel motor outputs different torques, and the wheel motor is matched with the steering oil cylinder 9 and the rotary motors 1-7 to realize ackerman steering.
In some embodiments, a plurality of main frame suspension supports 1-5 are arranged in a rectangular shape below the middle part of the main frame 1, each main frame suspension support 1-5 is connected with the power system 5 through a corresponding suspension 10, the power system 5 is provided with the power system suspension support 5-1, and one end of the suspension 10 away from the main frame 1 is connected with the power system suspension support 5-1. The suspension 10 plays a role in vibration isolation, the power system 5 comprises an engine, a generator and a high-voltage rectifying system, and the power system 5 provides electric energy for the wheel motor in the wheel motor and speed reducer assembly 6.
The hinge joint between the auxiliary frame 2 and the axle housing 3 is realized by the following technical scheme: the auxiliary frame 2 is provided with an auxiliary frame traction support 2-3, the axle housing 3 is provided with an axle housing traction support 3-1, and the auxiliary frame traction support 2-3 is hinged with the axle housing traction support 3-1 through a pin shaft II 13.
The suspension system 8 connected with the auxiliary frame 2 and the axle housing 3 is realized by the following technical scheme: the auxiliary frame 2 is provided with a suspension cylinder upper support 2-4, the axle housing 3 is provided with a suspension cylinder lower support 3-2, and suspension cylinders in the suspension system 8 are respectively hinged with the suspension cylinder upper support 2-4 and the suspension cylinder lower support 3-2.
In some embodiments, as shown in fig. 6 and 7, the suspension system further comprises a track rod 12 arranged along the axle housing 3, an axle housing track rod support 3-4 is arranged on the axle housing 3, a subframe track rod support 2-5 is arranged on the subframe 2, one end of the track rod 12 is hinged with the axle housing track rod support 3-4, the other end of the track rod 12 is hinged with the subframe track rod support 2-5, and the suspension system 8 is an active suspension system and can be subjected to telescopic adjustment. The engineering vehicle with the vehicle chassis has the advantages that in the using process, the transverse pull rod 12 can play a role in connection and limiting, the extension length of the two sides of the suspension cylinder is ensured to be within a certain range, the transverse pull rod 12 is subjected to tensile force or pressure to balance the extension length of the left suspension cylinder and the right suspension cylinder after exceeding a certain range, and the axle housing 3 and the auxiliary frame 2 are prevented from tilting at a large angle.
The track rod 12 is a rigid member that has limited adjustment, and for this purpose, in some embodiments, the track rod 12 is a telescoping rod, and the telescoping track rod 12 and active suspension system together provide for vehicle body stability.
The invention also provides a mining dump truck, which comprises a cargo box 4, a lifting oil cylinder 7 and the vehicle chassis, as shown in figures 1 to 7. One side of the main frame 1 is provided with a plurality of main frame articulated supports 1-2, one side of the container 4 is provided with a container articulated support 4-2 matched with the main frame articulated supports 1-2, and the container articulated support 4-2 is articulated with the main frame articulated supports 1-2 through a pin shaft I11. The other side of the container 4 is provided with a container lifting oil cylinder support 4-1, the other side of the frame 1 is provided with a main frame lifting oil cylinder support 1-3 matched with the container lifting oil cylinder support, and two ends of a lifting oil cylinder 7 are respectively hinged with the container lifting oil cylinder support 4-1 and the main frame lifting oil cylinder support 1-3. During unloading, the lifting oil cylinder 7 stretches out to drive the container 4 to rotate upwards around a hinge point with the main frame 1, unloading is achieved, and after unloading is completed, the lifting oil cylinder 7 is retracted again, so that the container 4 is kept at a horizontal or approximately horizontal position with the main frame 1 again. The container 4 adopts a straight-through structure in cooperation with the main frame 1, the container 4 is symmetrically arranged above the main frame 1, and a lateral lifting structure is adopted, so that the loading capacity and unloading efficiency of the container 4 are improved.
In some embodiments, as shown in fig. 3, a damping rubber pad 1-1 is arranged on the upper surface of the main frame 1 to protect the main frame 1 and the cargo box 4.
The gravity center is offset towards one side of the container 4 hinged with the main frame 1 in the process of unloading the container 4, and the tire 15 is deformed under pressure, so that the mining dump truck is inclined. At this time, the suspension system 8 at the hinged side of the cargo box 4 and the main frame 1 is adjusted to enable the suspension cylinder to extend out, and the side of the auxiliary frame 2 which is inclined downwards is jacked upwards to carry out leveling operation, so that the main frame 1 is kept at a horizontal position as much as possible, and the balance of the vehicle body is further ensured.
The foregoing description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical principles of the present invention are within the scope of the technical solutions of the present invention.
Claims (11)
1. A vehicle chassis, characterized by: the auxiliary frame (2) is respectively arranged below the front end and the rear end of the main frame (1), and the two auxiliary frames (2) are both in rotary connection with the main frame (1); the two auxiliary frames (2) are hinged with the respective matched axle housings (3), and a suspension system (8) is arranged between the auxiliary frames (2) and the axle housings (3).
2. The vehicle chassis of claim 1, wherein: the novel bicycle is characterized in that a rotary support upper support (1-6) is arranged on the main frame (1), a rotary support lower support (2-1) is arranged on the auxiliary frame (2), the rotary support lower support (2-1) is connected with the rotary support upper support (1-6) through a central rotary body (14), and the rotary motion of the rotary support lower support (2-1) relative to the rotary support upper support (1-6) is controlled through a driving system in transmission connection with the rotary support lower support (2-1).
3. The vehicle chassis of claim 2, wherein: the center revolving body (14) comprises a revolving body inner ring (14-1) and a revolving body outer ring (14-2), wherein the revolving body inner ring (14-1) is fixed with a revolving support lower support (2-1), the revolving body outer ring (14-2) is fixed with a revolving support upper support (1-6), and an upper tapered roller (14-3), a middle cylindrical roller (14-4) and a lower tapered roller (14-5) are sequentially arranged on the revolving body inner ring (14-1) and the revolving body outer ring (14-2) from top to bottom along the axial direction.
4. The vehicle chassis of claim 2, wherein: the driving system comprises a rotary motor (1-7), the rotary support lower support (2-1) is further connected with a lower rotary support gear (2-6), and the rotary motor (1-7) is in transmission connection with the lower rotary support gear (2-6).
5. The vehicle chassis of claim 4, wherein: the driving system further comprises steering oil cylinders (9), the left side and the right side of the auxiliary frame (2) are respectively provided with an auxiliary frame steering oil cylinder support (2-2), each auxiliary frame steering oil cylinder support (2-2) is hinged with one steering oil cylinder (9), and one end, far away from the auxiliary frame steering oil cylinder support (2-2), of each steering oil cylinder (9) is hinged with the main frame (1).
6. The vehicle chassis of claim 1, wherein: the lower part of the middle part of the main frame (1) is provided with a plurality of main frame suspension supports (1-5) in rectangular arrangement, and each main frame suspension support (1-5) is connected with a power system (5) through a corresponding suspension (10).
7. The vehicle chassis of claim 1, wherein: the suspension system comprises a main frame (2), a suspension system (8) and a cross pull rod (12) arranged along the axle housing (3), wherein one end of the cross pull rod (12) is hinged with the axle housing (3), the other end of the cross pull rod (12) is hinged with the auxiliary frame (2), and the suspension system (8) is an active suspension system.
8. The vehicle chassis of claim 7, wherein: the tie rod (12) is a telescopic rod.
9. The mining dump truck is characterized in that: comprising a cargo box (4), a lifting cylinder (7) and a vehicle chassis according to any one of claims 1-8; one side of the container (4) is hinged with one side of the main frame (1), and the lifting oil cylinder (7) is arranged between the other side of the container (4) and the other side of the main frame (1).
10. The mining dump truck of claim 9, wherein: the upper surface of the main frame (1) is provided with a damping rubber pad (1-1).
11. The mining dump truck of claim 9, wherein: the main frame (1) adopts a front-back symmetrical structure, and the cargo boxes (4) are symmetrically arranged above the main frame (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310135425.2A CN116080762A (en) | 2023-02-20 | 2023-02-20 | Vehicle chassis and mining dump truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310135425.2A CN116080762A (en) | 2023-02-20 | 2023-02-20 | Vehicle chassis and mining dump truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116080762A true CN116080762A (en) | 2023-05-09 |
Family
ID=86199138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310135425.2A Pending CN116080762A (en) | 2023-02-20 | 2023-02-20 | Vehicle chassis and mining dump truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116080762A (en) |
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2023
- 2023-02-20 CN CN202310135425.2A patent/CN116080762A/en active Pending
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