CN109319693B - Hydrostatic lift truck chassis and three-wheel foklift truck with it - Google Patents
Hydrostatic lift truck chassis and three-wheel foklift truck with it Download PDFInfo
- Publication number
- CN109319693B CN109319693B CN201811243957.3A CN201811243957A CN109319693B CN 109319693 B CN109319693 B CN 109319693B CN 201811243957 A CN201811243957 A CN 201811243957A CN 109319693 B CN109319693 B CN 109319693B
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- vehicle frame
- wheel
- preceding bridge
- bridge
- mouth
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07513—Details concerning the chassis
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of hydrostatic lift truck chassis and with its three-wheel foklift truck, which includes: preceding bridge, and preceding bridge is two-wheel integral axle；Rear axle, rear axle are single-wheel vehicle bridge；Vehicle frame, the front end side of vehicle frame and preceding bridge are hinged by pin shaft, and the hinged vehicle frame in the front end other side of vehicle frame adjusts oil cylinder, and the other end and preceding bridge of vehicle frame adjusting oil cylinder are hinged, and the rear end of vehicle frame and rear axle are rigidly connected.The hydrostatic lift truck chassis turning radius is smaller, can the operation in narrow space, using flexible is good, is suitably adapted for drawing casing working in container, cross-country ability is good；When fork truck keeps driver's cabin holding horizontal, fork truck is to the adaptable of environment to adjust body gesture on horizontal slope in use, the collapsing length that vehicle frame adjusts oil cylinder can be adjusted in real time according to horizontal slope size.
Description
Technical field
The present invention relates to fork truck and technical field, in particular to a kind of hydrostatic lift truck chassis and with its
Three-wheel foklift truck.
Background technique
Fork truck is a kind of common container packing delivering device, and a kind of efficiently container draws casing working and unit
Goods and materials handler has stronger mobility, passability and flexibility, and can preferably adapt to field system-wide face ring
Border, realizes the handling and transport of container, provides handling operation guarantee for Container Transport fleet.
Existing fork truck is primarily present following deficiency: (1) existing fork truck mostly uses two bridge structural chassis of four-wheel, turning
Radius is larger, can not the operation in narrow space, flexibility is poor；(2) vehicle frame of existing fork truck generallys use monoblock type knot
Structure and vehicle bridge are directly connected to or by swinging frame connecting vehicle frame and vehicle bridge, fork truck is on horizontal slope in use, can not be big according to horizontal slope
Minor adjustment body gesture, structural environment adaptability be not strong；(3) existing fork truck usually only before one in bridge or rear axle
For hydrostatic driving bridge, road surface bad adaptability, at cross-country horizontal slope road surface, muddy slippery road surface or upper big slope, adaptability is bad；(4)
The braking distance of existing fork truck is longer, and especially in parking on great slope, braking system security reliability is poor, braking
It can be to be improved.
Summary of the invention
The main purpose of the present invention is to provide a kind of hydrostatic lift truck chassis and with its three-wheel foklift truck, at least
Solve the problems, such as fork truck turning radius in the prior art it is big, can not be according to the big minor adjustment body gesture of horizontal slope.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of hydrostatic lift truck chassis, the fork
Chassis includes: preceding bridge, and preceding bridge is two-wheel integral axle；Rear axle, rear axle are single-wheel vehicle bridge；Vehicle frame, the front end side of vehicle frame
Hinged by pin shaft with preceding bridge, the hinged vehicle frame in the front end other side of vehicle frame adjusts oil cylinder, vehicle frame adjust the other end of oil cylinder with
Preceding bridge is hinged, and the rear end of vehicle frame and rear axle are rigidly connected.
Further, the wheel of rear axle can rotate within the scope of ± 90 ° relative to the longitudinal axis of vehicle frame.
Further, bridge variable displacement motor before installation one in the motor compartment of preceding bridge installs a wheel-side motor, vehicle on rear axle
One engine is installed, engine is set there are two power taking mouth, and one of power taking mouth passes through a shaft coupling and an enclosed electricity ratio on frame
Example variable pump connection, enclosed electricity proportional variable pump and a work series connection of pumps, another power taking mouth of engine and a brake pump are direct-connected,
Enclosed electricity proportional variable pump is connect by a threeway valve block or three-way connection with a freewheel control valve group and preceding bridge variable displacement motor,
Freewheel control valve group is connect with wheel-side motor.
Further, freewheel control valve group takes the pressure oil of the repairing pump discharge of enclosed electricity proportional variable pump to carry out control wheel
Side motor is in servo-actuated state or driving condition.
Further, the outlet of brake pump is connected with the import of a double loop prefill valve, and one is integrated in the prefill valve of double loop
For protecting the overflow valve of brake pump, the A1 mouth of double loop prefill valve and A2 mouthfuls are separately connected a service brake by three-way connection
The import of accumulator and a double loop brake valve, the K1 mouth of double loop brake valve and K2 mouthfuls respectively with the service brake of wheel-side motor
Mouth is connected with the service brake mouth of preceding bridge.
Further, the SW mouth of double loop prefill valve is connect with the P mouth of a parking emergency braking valve group, emergency braking of stopping
The V mouth of valve group is connected with a parking emergency braking accumulator, and the B mouth for emergency braking valve group of stopping connects with the parking braking of preceding bridge
It connects.
Further, the spline of preceding bridge variable displacement motor is connect by a spline housing with the gear drive spline of preceding bridge.
Further, wheel-side motor is connect with rear axle by high-strength bolt.
According to another aspect of the present invention, a kind of three-wheel foklift truck is additionally provided, which includes that above-mentioned static pressure passes
Moving fork chassis.
It applies the technical scheme of the present invention, preceding bridge uses two-wheel integral axle, and the cross-country ability of fork truck, rear axle can be improved
Using single-wheel vehicle bridge so that the turning radius of vehicle is smaller, can the operation in narrow space, using flexible is good, can fit
Together in drawing casing working in container；The front end side of vehicle frame and preceding bridge is hinged, the hinged vehicle frame in the front end other side of vehicle frame
Oil cylinder is adjusted, the other end and preceding bridge of vehicle frame adjusting oil cylinder are hinged, and the rear end of vehicle frame and rear axle are rigidly connected, when fork truck exists
In use, can adjust in real time the collapsing length of vehicle frame adjusting oil cylinder according to horizontal slope size makes to adjust body gesture on horizontal slope
Driver's cabin keeps horizontal, improves fork truck to the adaptability of environment.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the side structure schematic diagram of the three-wheel foklift truck of the embodiment of the present invention.
Fig. 2 is the overlooking structure diagram of the three-wheel foklift truck of the embodiment of the present invention.
Fig. 3 is vehicle frame and the hinged structural schematic diagram of preceding bridge in the three-wheel foklift truck of the embodiment of the present invention.
Fig. 4 is hydrostatic driving hydraulic schematic diagram in the three-wheel foklift truck of the embodiment of the present invention.
Fig. 5 is braking system schematic diagram in the three-wheel foklift truck of the embodiment of the present invention.
Wherein, the above drawings include the following reference numerals:
10, preceding bridge；11, the first support；12, the second support；20, rear axle；30, vehicle frame；31, pin shaft；32, vehicle frame adjusts oil
Cylinder；40, preceding bridge variable displacement motor；50, wheel-side motor；60, engine；70, enclosed electricity proportional variable pump；80, working barrel；90, it makes
Dynamic pump；100, freewheel control valve group；110, double loop prefill valve；120, service brake accumulator；130, double loop brake valve；
140, parking emergency braking valve group；150, stop emergency braking accumulator；160, driver's cabin；170, gas pedal；180, automatically controlled
Cabinet；190, fuel tank；200, oil suction ball valve.
Specific embodiment
To facilitate the understanding of the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face meticulously describes, but the protection scope of the present invention is not limited to the following specific embodiments.It should be noted that not rushing
In the case where prominent, the feature in embodiment and embodiment in the present invention be can be combined with each other.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical." first ", " second " used in present patent application specification and claims and similar word are simultaneously
Any sequence, quantity or importance are not indicated, and are intended merely to facilitate and corresponding components are distinguished.Equally, " one
It is a " or the similar word such as " one " do not indicate that quantity limits, but indicate that there are at least one.The classes such as " connection " or " connected "
As word be not limited to physics or mechanical connection, but may include electrical connection, either it is direct also
It is indirect."upper", "lower", "left", "right" etc. are only used for indicating relative positional relationship, when the absolute position for being described object changes
After change, then the relative positional relationship also correspondingly changes.
Referring to Fig. 1 to Fig. 5, a kind of hydrostatic lift truck chassis of the embodiment of the present invention, the fork truck chassis include preceding bridge 10,
Rear axle 20 and vehicle frame 30.Wherein, preceding bridge 10 is two-wheel integral axle；Rear axle 20 is single-wheel vehicle bridge；The front end side of vehicle frame 30
Hinged by pin shaft 31 with preceding bridge 10, the hinged vehicle frame in the front end other side of vehicle frame 30 adjusts oil cylinder 32, which adjusts oil
The other end of cylinder 32 and preceding bridge 10 are hinged, and the rear end of vehicle frame 30 and rear axle 20 are rigidly connected.
Above-mentioned hydrostatic lift truck chassis, preceding bridge 10 use two-wheel integral axle, the cross-country ability of fork truck can be improved,
Rear axle 20 uses single-wheel vehicle bridge so that the turning radius of vehicle is smaller, can the operation in narrow space, using flexible
It is good, it can be well adapted for drawing casing working in container；The front end side of vehicle frame 30 and preceding bridge 10 is hinged, and the front end of vehicle frame 30 is another
The hinged vehicle frame in side adjusts oil cylinder 32, the vehicle frame adjust oil cylinder 32 the other end and preceding bridge 10 it is hinged, and by vehicle frame 30
Rear end and rear axle 20 are rigidly connected, when fork truck on horizontal slope in use, can adjust in real time vehicle frame according to horizontal slope size adjusts oil cylinder
32 collapsing length keeps 160 holding of driver's cabin horizontal, improves fork truck to the adaptability of environment to adjust body gesture.
Specifically, in the present embodiment, the two sides on preceding bridge 10 corresponding to 30 front end of vehicle frame are respectively equipped with one first
The front end side of seat 11 and second support 12, vehicle frame 30 is hinged by pin shaft 31 and the first support 11, the front end of vehicle frame 30
The other side and the bottom end that vehicle frame adjusts oil cylinder 32 are hinged, the piston rod and the second support 12 on preceding bridge 10 that vehicle frame adjusts oil cylinder 32
Hingedly.
Further, in the present embodiment, the wheel of rear axle 20 preferably can relative to vehicle frame 30 longitudinal axis at ± 90 °
Rotation in range.In this way, the turning radius of fork truck can be made as small as possible, the using flexible of fork truck is further increased.
Referring to Fig. 1 to Fig. 4, in the present embodiment, a preceding bridge variable displacement motor is installed in the motor compartment of preceding bridge 10
40, the spline of the preceding bridge variable displacement motor 40 is connected by the gear drive spline of a spline housing (not shown) and preceding bridge 10
It connects.One wheel-side motor 50 is installed, which is connect with rear axle 20 by high-strength bolt on rear axle 20.On vehicle frame 30
One engine 60 is installed, there are two power taking mouth (not shown), one of them main power taking mouths for setting on the engine 60
It is connected by a shaft coupling with an enclosed electricity proportional variable pump 70, the enclosed electricity proportional variable pump 70 and a working barrel
80 series connection, enclosed electricity proportional variable pump 70 can be used the form of integrated slippage pump, the form of external slippage pump can also be used, when adopting
When with external slippage pump form, slippage pump and working barrel 80 form duplex pump group.In addition, can also only setting one on engine 60
A power taking mouth, enclosed electricity proportional variable pump 70, working barrel 80, brake pump 90 and slippage pump are connected together at this time.However, it is preferred to adopt
With the arrangement that two power taking mouths are arranged on engine 60, this arrangement is more reasonable.
Another power taking mouth and a brake pump 90 of engine 60 are direct-connected, and enclosed electricity proportional variable pump 70 passes through one three
Port valve block or three-way connection are connect with a freewheel control valve group 100 and preceding bridge variable displacement motor 40, freewheel control valve group 100
It is connect with wheel-side motor 50.When driving, driver controls control button and the joint of gas pedal 170 in driver's cabin 160 to fork truck
Effect controls the electric ratio of enclosed electricity proportional variable pump 70 forward or reverse by the PLC control module in power control cabinet 180, real
Existing electrodeless variable-speed；Bridge variable displacement motor 40 rotates before enclosed electricity proportional variable pump 70 drives, and preceding bridge variable displacement motor 40 drives preceding bridge 10
Traveling, vehicle enter driving status；Freewheel control valve group 100 takes the pressure oil of 70 repairing pump discharge of enclosed electricity proportional variable pump
It is in servo-actuated state or driving condition to control wheel-side motor 50, hour wheel side motor 50 is travelled in good road surface and is in servo-actuated shape
State, only preceding bridge 10 drives；It uses preceding bridge 10 and rear axle 20 when driving on climbing big slope or muddy slippery road surface while driving, to increase
Big vehicle power, improves tractive force.So set, preceding bridge 10 and rear axle 20 use closed type hydraulic system hydrostatic driving, it can basis
Road surface operating condition select before bridge 10 be operated alone or preceding bridge 10 and rear axle 20 joint driving, improve cross-country ability and the road surface of fork truck
Adaptability.
Referring to Fig. 5, in the present embodiment, the outlet of brake pump 90 is connected with the import of a double loop prefill valve 110, double
One is integrated in circuit prefill valve 110 for protecting the overflow valve of brake pump 90.Specifically, brake pump 90 is connected by oil pipe
Between double loop prefill valve 110 and fuel tank 190, oil inlet is connected by oil pipe with oil suction ball valve 200 or oil absorption filter
Fuel tank 190, oil outlet are internally integrated the double loop prefill valve 110 of overflow valve by oil pipe connection.Double loop prefill valve 110
A1 mouth and A2 mouthfuls a service brake accumulator 120 and double loop brake valve 130 are separately connected by three-way connection
Import, the driving system with the service brake mouth of wheel-side motor 50 and preceding bridge 10 respectively of the K1 mouth of double loop brake valve 130 and K2 mouthfuls
It opens one's mouth connection.By above-mentioned setting, reliable service brake can be carried out to forklift front bridge 10 and rear axle 20.
Further, referring to Fig. 5, in the present embodiment, the SW mouth of double loop prefill valve 110 and a parking emergency braking
The P mouth of valve group 140 connects, and the V mouth for emergency braking valve group 140 of stopping is connected with a parking emergency braking accumulator 150, and parking is tight
The B mouth of anxious braking valve group 140 is connect with the parking braking of preceding bridge 10.So set, can be carried out reliably to the preceding bridge 10 of fork truck
Parking braking.In the present embodiment, drum-type parking braking is also had on the wheel-side motor 50 on rear axle 20.By on preceding bridge 10
Service brake and parking braking and service brake and drum-type parking braking progress Associated brake on rear axle 20, effectively shorten
The braking distance of fork truck improves security reliability of the fork truck in parking on great slope.
Referring to Fig. 1 to Fig. 5, a kind of three-wheel foklift truck of the embodiment of the present invention, the three-wheel foklift truck includes above-mentioned static pressure transmission
Fork truck chassis is provided with a driver's cabin 160 on the vehicle frame 30 on hydrostatic lift truck chassis, is provided with control in driver's cabin 160
Button processed and gas pedal 170.It is also equipped with a power control cabinet 180 in the rear end of vehicle frame 30, for the traveling to vehicle, braking
And the adjusting of body gesture is controlled.
The three-wheel foklift truck when driving, first starts engine 60, and enclosed electricity proportional variable pump 70 is started to work, meanwhile, and it closes
The concatenated working barrel 80 of formula electricity proportional variable pump 70 is also started to work；Driver controls the control button and oil in driver's cabin 160
Door 170 synergy of pedal is rotated forward or anti-by the PLC control module control enclosed electricity proportional variable pump 70 in power control cabinet 180
The electric ratio turned realizes electrodeless variable-speed；Bridge variable displacement motor 40 rotates before enclosed electricity proportional variable pump 70 drives, preceding bridge variable displacement motor
40 drive preceding bridge 10 to travel, and vehicle enters driving status；When fork truck in good road surface when driving, freewheel control valve group 100
It controls wheel-side motor 50 and is in servo-actuated state, only preceding bridge 10 drives at this time；When fork truck is climbing big slope or muddy slippery road surface uplink
When sailing, freewheel control valve group 100 controls wheel-side motor 50 and is in driving condition, and preceding bridge variable displacement motor 40 gives wheel-side motor 50
Constant electric ratio eliminates shaft space difference speed, and bridge 10 and the joint driving of rear axle 20, improve the road surface adaptability of fork truck before making.
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 (8)
1. a kind of hydrostatic lift truck chassis, which is characterized in that the fork truck chassis includes:
Preceding bridge (10), the preceding bridge (10) are two-wheel integral axle；
Rear axle (20), the rear axle (20) are single-wheel vehicle bridge；
Vehicle frame (30), the front end side of the vehicle frame (30) and the preceding bridge (10) pass through pin shaft (31) hingedly, the vehicle frame
(30) the hinged vehicle frame in the front end other side adjusts oil cylinder (32), and the vehicle frame adjusts the other end and the preceding bridge of oil cylinder (32)
(10) hingedly, rear end Yu the rear axle (20) rigid connection of the vehicle frame (30)；
Bridge variable displacement motor (40) before installation one in the motor compartment of the preceding bridge (10), one wheel side of installation on the rear axle (20)
Motor (50) is installed an engine (60) on the vehicle frame (30), and the engine (60) sets there are two power taking mouth, one of them
Power taking mouth is connect by a shaft coupling with an enclosed electricity proportional variable pump (70), the enclosed electricity proportional variable pump (70) and a work
(80) series connection is pumped, another power taking mouth and a brake pump (90) of the engine (60) are direct-connected, the enclosed electricity rate variable
(70) are pumped to connect by a threeway valve block or three-way connection and a freewheel control valve group (100) and the preceding bridge variable displacement motor (40)
It connects, the freewheel control valve group (100) connect with the wheel-side motor (50).
2. hydrostatic lift truck chassis according to claim 1, which is characterized in that the wheel of the rear axle (20) can be opposite
It is rotated within the scope of ± 90 ° in the longitudinal axis of the vehicle frame (30).
3. hydrostatic lift truck chassis according to claim 1, which is characterized in that the freewheel control valve group (100)
The pressure oil of the repairing pump discharge of the enclosed electricity proportional variable pump (70) is taken to control the wheel-side motor (50) and be in servo-actuated
State or driving condition.
4. hydrostatic lift truck chassis according to claim 1, which is characterized in that the outlet and one of the brake pump (90)
The import of double loop prefill valve (110) is connected, and one is integrated in the double loop prefill valve (110) for protecting the brake pump
(90) overflow valve, the A1 mouth of the double loop prefill valve (110) are separately connected a service brake by three-way connection with A2 mouthfuls
The import of accumulator (120) and a double loop brake valve (130), the K1 mouth and K2 mouthfuls of difference of the double loop brake valve (130)
It is connect with the service brake mouth of the service brake mouth of the wheel-side motor (50) and the preceding bridge (10).
5. hydrostatic lift truck chassis according to claim 4, which is characterized in that the double loop prefill valve (110)
SW mouthfuls connect with the P mouth of parking emergency braking valve group (140), the V mouth of parking emergency braking valve group (140) and a parking
Emergency braking accumulator (150) is connected, the B mouth and the parking system of the preceding bridge (10) of parking emergency braking valve group (140)
Dynamic connection.
6. hydrostatic lift truck chassis according to claim 1, which is characterized in that the flower of the preceding bridge variable displacement motor (40)
Key is connect by a spline housing with the gear drive spline of the preceding bridge (10).
7. hydrostatic lift truck chassis according to claim 1, which is characterized in that the wheel-side motor (50) and it is described after
Bridge (20) is connected by high-strength bolt.
8. a kind of three-wheel foklift truck, which is characterized in that the three-wheel foklift truck includes such as static pressure of any of claims 1-7
Driving forklift chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243957.3A CN109319693B (en) | 2018-10-24 | 2018-10-24 | Hydrostatic lift truck chassis and three-wheel foklift truck with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811243957.3A CN109319693B (en) | 2018-10-24 | 2018-10-24 | Hydrostatic lift truck chassis and three-wheel foklift truck with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109319693A CN109319693A (en) | 2019-02-12 |
| CN109319693B true CN109319693B (en) | 2019-07-19 |
Family
ID=65263208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811243957.3A Active CN109319693B (en) | 2018-10-24 | 2018-10-24 | Hydrostatic lift truck chassis and three-wheel foklift truck with it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109319693B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110143102A (en) * | 2019-06-28 | 2019-08-20 | 衡阳合力工业车辆有限公司 | A kind of fork truck and vehicle bridge |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020333A1 (en) * | 2000-09-04 | 2002-03-14 | Aisle-Master Research & Development Limited | Steering device for an articulated vehicle |
| CN1754821A (en) * | 2004-09-29 | 2006-04-05 | 奥地利帕尔菲格欧洲公司 | Forklift |
| CN101224861A (en) * | 2008-01-22 | 2008-07-23 | 中国人民解放军总后勤部建筑工程研究所 | Static hydraulic driven big-tonnage hinged -frame all-terrain container fork lift |
| CN107351827A (en) * | 2017-05-27 | 2017-11-17 | 陕西铁路工程职业技术学院 | A kind of hydrostatically driven vehicle walking brakes |
-
2018
- 2018-10-24 CN CN201811243957.3A patent/CN109319693B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002020333A1 (en) * | 2000-09-04 | 2002-03-14 | Aisle-Master Research & Development Limited | Steering device for an articulated vehicle |
| CN1754821A (en) * | 2004-09-29 | 2006-04-05 | 奥地利帕尔菲格欧洲公司 | Forklift |
| CN101224861A (en) * | 2008-01-22 | 2008-07-23 | 中国人民解放军总后勤部建筑工程研究所 | Static hydraulic driven big-tonnage hinged -frame all-terrain container fork lift |
| CN107351827A (en) * | 2017-05-27 | 2017-11-17 | 陕西铁路工程职业技术学院 | A kind of hydrostatically driven vehicle walking brakes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109319693A (en) | 2019-02-12 |
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