CN110626995A - Four-fulcrum multi-steering narrow roadway articulated forklift - Google Patents
Four-fulcrum multi-steering narrow roadway articulated forklift Download PDFInfo
- Publication number
- CN110626995A CN110626995A CN201910911008.6A CN201910911008A CN110626995A CN 110626995 A CN110626995 A CN 110626995A CN 201910911008 A CN201910911008 A CN 201910911008A CN 110626995 A CN110626995 A CN 110626995A
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- steering
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- front wheel
- driving
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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
- B62D12/00—Steering specially adapted for vehicles operating in tandem or having pivotally connected frames
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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
- B66F9/075—Constructional features or details
- B66F9/07568—Steering arrangements
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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
- B66F9/075—Constructional features or details
- B66F9/07572—Propulsion arrangements
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a four-fulcrum multi-steering narrow roadway articulated forklift, which comprises a pair of front wheels, a pair of front wheels and a pair of lifting bodies, wherein the front wheels are driven wheels with independent steering functions and are symmetrically arranged on two sides of the lifting bodies; the pair of rear wheels are in power connection with the driving device, and the rear wheels are symmetrically arranged on the vehicle body; and the steering device is connected with the lifting body and the vehicle body, and a power system is arranged on the steering device. According to the invention, the hinge mechanism with an independent rotating function is arranged between the vehicle body and the lifting body, and meanwhile, the front wheel with a steering function is arranged on the lifting body, so that two steering modes of hinge steering and front wheel steering are formed, so that the carrying of conventional goods can be met, and the carrying of overlong goods in a narrow roadway can be realized; meanwhile, the contact area between the wheels and the ground is effectively increased by using a four-fulcrum bridge structure, the problem of driving slip is solved, and the adaptability of the forklift to the ground is improved.
Description
Technical Field
The invention relates to the technical field of forklift equipment, in particular to a four-fulcrum multi-steering narrow roadway articulated forklift.
Background
In order to maximize the storage area of the warehouse, the storage capacity is increased in a limited space, so that the width of the shelf space (channel or roadway) is reduced, however, for the forklift, the roadway must have enough width to meet the requirement of the forklift to move in the roadway and stack or store and take goods.
The forklift works in the roadway, the required working space directly influences the working efficiency and the storage capacity, and compared with the common forklift, the forklift is only suitable for storing conventional standard tray materials and cannot be used for storing long materials, so that the working efficiency is low; meanwhile, the overall size of the common forklift is large, so that the storage capacity is low; meanwhile, three wheels in contact with the ground are arranged in the existing forklift to form a three-point mode, so that the pressure of a single wheel is high, and the phenomena of driving slippage and instability are easy to occur.
Disclosure of Invention
The invention aims to provide a four-fulcrum multi-steering narrow roadway articulated forklift to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a four-pivot multi-steering narrow roadway articulated forklift comprises
The front wheels are symmetrically arranged on two sides of the lifting body through a transverse shaft on the swing axle to form two front supporting points for supporting the lifting body;
the pair of rear wheels are in power connection with the driving device and used as driving wheels, and the rear wheels are symmetrically arranged on the vehicle body to form two rear supporting points and are used for driving the vehicle body to move forwards and backwards; and
the steering device comprises a hinged main shaft, the steering device is connected with the lifting body and the vehicle body, the steering device is provided with a power system, and the power system drives the steering device to drive the lifting body to rotate by taking the hinged main shaft as a center;
wherein: when the automobile body takes place articulated steering action when moving, articulated main shaft rotates around the front wheel center, and the automobile body can be along with the displacement of pin joint and the displacement.
Preferably, the steering device further includes:
the front hinged frame is used for connecting the lifting body; and
the rear hinged frame is used for connecting the vehicle body;
the hinge spindle is used as an axis to connect the front hinge frame and the rear hinge frame to form a hinge mechanism;
the power system drives the hinge main shaft to link the front hinge frame to rotate relative to the rear hinge frame, so that the linkage lifting body rotates relative to the vehicle body by taking the hinge main shaft as a center.
Preferably, the hinge spindle is connected with the front hinge frame through a pin shaft and is fixed in a non-rotatable mode, a bearing is arranged at the connecting position of the hinge spindle and the front hinge frame and is locked through a locking nut, and the hinge spindle and the front hinge frame can rotate after assembly is completed.
Preferably, drive arrangement includes the group battery, group battery and drive controller electric connection, drive controller and driving motor electric connection, two driving motor passes through the gear box and is connected with the rear wheel of automobile body both sides, as the drive wheel, and the front wheel is as following the driving wheel, the front wheel is single or a plurality of.
Preferably, the power system comprises an articulated steering hydraulic motor and a transmission gear set, the articulated steering hydraulic motor is linked with the transmission gear set, and the transmission gear set is linked with the articulated spindle.
Preferably, drive gear group is including the driving gear, the driving gear with articulated turn to hydraulic motor transmission and be connected, with transition gear's big circle meshing, transition gear's ring gear and driven gear meshing, driven gear with articulated main shaft connect, transition gear passes through the bearing and fixes on transition gear axle, driving gear and transition gear pass through the gear mount and fix on articulated frame in back, but driven gear and articulated main shaft adopt the key-type connection to fix nonrotatably.
Preferably, driving system includes hydraulic tank, gear pump, motor, hydraulic tank's oil-out and gear pump oil inlet intercommunication, the motor is connected with gear pump power, the gear pump oil-out and hydraulic steering gear oil inlet intercommunication, hydraulic steering gear and electromagnetic directional valve intercommunication, electromagnetic directional valve work hydraulic fluid port with be used for the drive to promote the articulated hydraulic motor intercommunication that turns to of body steering, another work hydraulic fluid port of electromagnetic directional valve with be used for driving the front wheel steering hydraulic motor intercommunication that the front wheel turned to, the front wheel steering hydraulic motor is connected with the front wheel power, motor and controller electric connection.
Preferably, the front wheel steering hydraulic motor is respectively connected with the front wheels on two sides of the lifting body in a gear meshing manner.
Preferably, the front wheel steering hydraulic motor is connected with the front wheel on one side of the lifting body in a gear meshing mode to form a driving steering wheel, and the front wheel on the other side is connected with the driving steering wheel through a connecting rod to form a driven steering wheel.
Preferably, the front wheels are mounted on a front wheel frame through a transverse shaft, the front wheel frame is connected with an outer ring with teeth of the rotary support, an inner ring of the front wheel frame is connected with the swing bridge, the two front wheels are symmetrically mounted on the swing bridge, the front wheel steering hydraulic motor is mounted on the swing bridge, an output shaft of the front wheel steering hydraulic motor is connected with a steering pinion, and the steering pinion is meshed with the rotary support.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the hinge device with the independent rotating function is arranged between the vehicle body and the lifting body, and meanwhile, the front wheel with the steering function is arranged on the lifting body, so that two steering modes of hinge steering and front wheel steering are formed, so that the carrying of conventional goods can be met, the carrying of overlong goods in a narrow roadway can be realized, the storage capacity is effectively improved, the operating efficiency is improved, and the adaptability of the whole device is improved; meanwhile, the contact area between the wheels and the ground is effectively increased by using a four-fulcrum bridge structure, the problem of driving slip is solved, and the adaptability of the forklift to the ground is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a side view of the present invention;
FIGS. 3-4 are schematic views of the hinge steering structure of the present invention;
FIGS. 5 to 6 are schematic views of a front wheel steering structure of the present invention;
FIGS. 7-9 are views of the vehicle of the present invention in a lane for handling conventional materials;
FIG. 10 is a control schematic of the powertrain of the present invention;
FIG. 11 is a schematic diagram of the driving method of the present invention being a rear two-drive driving method;
FIGS. 12-16 are views illustrating the vehicle of the present invention in a lane for handling lengthy materials;
FIG. 17 is a cross-sectional view of a drive gear set of the present invention;
FIG. 18 is a top view of the drive gear set of the present invention.
In the figure: the hydraulic steering system comprises a body 1, a lifting body 2, a steering device 3, a front hinged frame 31, a rear hinged frame 32, a main hinged shaft 33, a transmission gear set 34, a driving gear 341, a gear fixing frame 342, a transition gear 343, a transition gear shaft 344, a driven gear 345, a pin 346, a front wheel 4, a front wheel frame 41, a rotary support 42, a swing bridge 43, a small steering sprocket 44, a rear wheel 5, a driving device 6, a battery pack 61, a driving controller 62, a driving motor 63, a power system 7, a hydraulic oil tank 71, a gear pump 72, a motor 73, an electromagnetic reversing valve 74, a hydraulic motor hinged steering 75, a hydraulic motor steering front wheel 76, a hydraulic steering gear 77 and a controller 78.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-18, the present invention provides a technical solution:
a four-pivot multi-steering narrow roadway articulated forklift comprises
The pair of front wheels 4 are driven wheels with independent steering functions, the front wheels 4 are symmetrically arranged on two sides of the lifting body 2 through a transverse shaft on a swinging bridge 43 to form two front supporting points for supporting the lifting body 2, the swinging bridge 43 is used for ensuring that a forklift has a certain swinging amount to adapt to a road surface when running on an uneven road surface, the running stability of the vehicle is improved, the number of the front wheels 4 is single or multiple, and the specific number can be designed according to the load of the vehicle; the lifting body 2 comprises a gantry assembly comprising a plurality of telescopically movable rails; the fork frame is arranged on the portal assembly and can move up and down along the innermost rail, a pair of forks for bearing cargos are arranged on the fork frame, a hydraulic system (such as a hydraulic driving motor, a hydraulic pump or a hydraulic motor and the like which are not shown) is driven to work by operating the lifting control device, and power is provided for lifting and inclining the lifting mechanism and forklift accessories;
the pair of rear wheels 5 are in power connection with the driving device 6 and used as driving wheels, and the rear wheels 5 are symmetrically arranged on the vehicle body 1 to form two rear supporting points for driving the vehicle body to move forwards and backwards; the driving device 6 comprises a battery pack 61, the battery pack 61 is electrically connected with a driving controller 62, the driving controller 62 is electrically connected with driving motors 63, the two driving motors 63 are connected with rear wheels 5 on two sides of the vehicle body 1 through gear boxes to serve as driving wheels, and front wheels 4 serve as driven wheels; the vehicle body 1 is provided with a seat, a steering control device, a drive control pedal, a lifting control device, a parking brake device, a service brake device and a cab; and a battery pack for balancing a counter weight of the forklift and supplying power to each system of the forklift, a generator, a motor, a hydraulic pump, etc. are mounted in the body 1, and
the steering device 3 is connected with the lifting body 2 and the vehicle body 1, a power system is arranged on the steering device 3, and the power system drives the steering device 3 to drive the lifting body 2 to rotate by taking the hinge main shaft 33 as a center;
wherein: when the articulated steering action occurs while the vehicle body moves, the articulated main shaft 33 rotates around the center of the front wheel 4, and the vehicle body 1 is displaced along with the displacement of the articulated point.
The steering device 3 includes: a front articulated frame 31 for connecting the lifting body 2; a rear hinge frame 32 for connecting the vehicle body 1; the hinge spindle 33 is used as an axis to connect the front hinge frame 31 and the rear hinge frame 32 to form a hinge mechanism; wherein, the power system drives the hinge main shaft 33 to link the front hinge frame 31 to rotate relative to the rear hinge frame 32, so as to link the lifting body 2 to rotate relative to the vehicle body 1 by taking the hinge main shaft 33 as the center.
The power system comprises an articulation steering hydraulic motor 75 and a transmission gear set 34, wherein the articulation steering hydraulic motor 75 is linked with the transmission gear set 34, and the transmission gear set 34 is linked with the articulation main shaft 33.
The transmission gear set 34 includes a driving gear 341, the driving gear 341 is in transmission connection with the hinge steering hydraulic motor 75 and is engaged with a large ring of the transition gear 343, a small ring gear of the transition gear 343 is engaged with a driven gear 345, the driven gear 345 is in key connection with the hinge main shaft 33 and is fixed in a non-rotatable manner, the hinge main shaft 33 is in connection with the front hinge frame 31 and is fixed in a non-rotatable manner by a pin 346, a bearing is arranged at a connection part of the hinge main shaft 33 and the front hinge frame 31 and is locked by a lock nut, the transmission gear 343 can rotate after assembly is completed, the transition gear 343 is fixed on a transition gear shaft 344 by a bearing, and the driving gear 341 and the transition gear 343 are fixed on the.
The power system also comprises a hydraulic oil tank 71 and a gear pump 72, the hydraulic steering system comprises a motor 73, an oil outlet of a hydraulic oil tank 71 is communicated with an oil inlet of a gear pump 72, the motor 73 is in power connection with the gear pump 72, an oil outlet of the gear pump 72 is communicated with an oil inlet of a hydraulic steering gear 77, the hydraulic steering gear 77 is controlled by a steering wheel, the hydraulic steering gear 77 is communicated with an electromagnetic directional valve 74, a working oil port of the electromagnetic directional valve 74 is communicated with an articulated steering hydraulic motor 75 used for driving the lifting body 2 to steer, the other working oil port of the electromagnetic directional valve 74 is communicated with a front wheel steering hydraulic motor 76 used for driving the front wheel 4 to steer, the front wheel steering hydraulic motor 76 is in power connection with the front wheel 4, the electromagnetic directional valve 74 supplies oil to the articulated steering hydraulic motor 75 or the front wheel steering hydraulic motor 76 according to the switching of the steering mode, the motor 73 is electrically connected with a controller 78. When the power system drives the steering device 3 to rotate, an articulated steering mode, namely a steering mode I is formed; when the power system drives the front wheels 4 to rotate, a front wheel steering mode, namely a steering mode two is formed, and only one of the steering modes is switched to the steering mode two.
The front wheel steering hydraulic motors 76 are respectively connected with the front wheels 4 on the two sides of the lifting body 2 in a gear engagement manner; the front wheel steering hydraulic motor 76 may also be connected to the front wheel 4 on one side of the lifting body 2 in a gear engagement manner to form a driving steering wheel, and the front wheel 4 on the other side is connected to the driving steering wheel through a connecting rod to form a driven steering wheel.
The front wheels 4 are installed on a front wheel frame 41 through a transverse shaft, the front wheel frame 41 is connected with a toothed outer ring of a rotary support 42, an inner ring of the front wheel frame 41 is connected with a swing bridge 43, the two front wheels 4 are symmetrically installed on the swing bridge 43, a front wheel steering hydraulic motor 76 is installed on the swing bridge 43, a steering pinion gear 44 is connected to an output shaft of the front wheel steering hydraulic motor 76, and the steering pinion gear 44 is meshed with the rotary support 42.
Fig. 7 to 9 show the operation process of the vehicle for conventional material handling according to the present invention, in which the forklift is shown in the left side cargo access operation state of the roadway, and in the right side cargo access operation state, the lifting body is rotated to the other side after forking the cargo.
Typical examples of access operations by fork lift trucks to goods at pallets in aisles between pallets: the forklift runs along the roadway, and the lifting body 2 is in a straight-going position, as shown in fig. 7; when the forklift approaches the pallet, the forklift is operated by rotating the lifting body 2 to enable the goods shelf on one side of the body 1 close to the roadway to form a certain angle with the pallet, then the lifting body 2 is turned to the pallet, and meanwhile, the forklift is driven forwards by each driving motor to enable the goods fork to approach the pallet, as shown in fig. 8; finally, the fork and the roadway are in a nearly right-angle state, as shown in fig. 9; then fork truck can drive each wheel, adjusts the rotatory angle of articulated mounting 3 simultaneously, makes the fork and the right angle mode entering tray of goods shelves, after the fork got the goods, according to above-mentioned operation process otherwise, then accomplished the access operation of a goods.
When the lifting body 2 is turned to be 90 degrees with the body of the forklift, a connecting line X-X from a central point of a front wheel 4 contacted with the ground to a central point of a rear wheel 5 contacted with the ground becomes a boundary line of lateral stability of the forklift, the stability of the forklift in the state is ensured no matter the forklift is in an unloaded state or a fully loaded state, a gravity center C point of a cargo loaded on a fork can generate a moment relative to the X-X line, and in order to balance the load borne by the forklift, a gravity center B point of the forklift must be backward as much as possible so as to maximize a distance Y from the B point to the X-X.
Fig. 12 to 16 show the operating sequence of the vehicle according to the invention for long or very long material handling: the forklift forks take long cargos to be placed on the forks in a balanced mode, the steering operation of the forklift is controlled in a steering mode two mode, the forklift is driven along the main channel, when the forklift is driven to the position shown in the figure 12, the forklift and the cargos are driven with the minimum turning radius (Ra and Rb) by adjusting the steering amplitude until the forklift moves to the position shown in the figure 13;
when the forklift is at the position shown in the figure 13, the steering operation of the forklift is still controlled in a steering mode two mode, and the goods on the forklift are enabled to run at the Rc turning radius by adjusting the steering amplitude, as shown in the figure 14, until the forklift moves to the position shown in the figure 15;
when the forklift runs to the position where the goods corresponding to the goods shelf are parallel, the forklift stops running and switches the steering mode II to the steering mode I, the power system 7 rotates the front wheel 4 by 90 degrees and enters a standby state, the power system 7 controls the hinged steering hydraulic motor 75 arranged on the hinged device 3, and the front wheel steering hydraulic motor 76 arranged on the swing axle 43 is locked; then the fork truck makes the fork be perpendicular to the goods shelves as far as possible through adjusting the steering range, stacks the goods to corresponding position after, adjusts the steering range again, still keeps the fork to be perpendicular to the goods shelves, takes out the fork from the goods bottom, makes the fork truck body get back to like the state of figure 15, and the fork truck has been in unloaded state this moment, can turn to the mode and go out the tunnel, also can turn to the mode two ways and go out.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a four fulcrums turn to narrow tunnel articulated formula fork truck more which characterized in that: comprises that
The pair of front wheels (4) are driven wheels with independent steering functions, the front wheels (4) are symmetrically arranged on two sides of the lifting body (2) through a transverse shaft on a swinging bridge (43) to form two front supporting points for supporting the lifting body (2);
the pair of rear wheels (5) are in power connection with the driving device (6) and are used as driving wheels, and the rear wheels (5) are symmetrically arranged on the vehicle body (1) to form two rear supporting points and are used for driving the vehicle body to move forwards and backwards; and
the steering device (3) comprises a hinged main shaft (33), the steering device (3) is connected with the lifting body (2) and the vehicle body (1), a power system is arranged on the steering device (3), and the power system drives the steering device (3) to drive the lifting body (2) to rotate by taking the hinged main shaft (33) as a center;
wherein: when the vehicle body moves and simultaneously generates the articulated steering action, the articulated main shaft (33) rotates around the center of the front wheel (4), and the vehicle body (1) can displace along with the displacement of the articulated point.
2. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 1, characterized in that: the steering device (3) further comprises:
a front articulated frame (31) for connecting the lifting body (2); and
a rear hinge frame (32) for connecting the vehicle body (1);
the hinge spindle (33) is used as an axis to connect the front hinge frame (31) and the rear hinge frame (32) to form a hinge mechanism;
the power system drives the hinge main shaft (33) to link the front hinge frame (31) to rotate relative to the rear hinge frame (32), so that the linkage lifting body (2) rotates relative to the vehicle body (1) by taking the hinge main shaft (33) as a center.
3. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 2, characterized in that: the hinge joint main shaft (33) and the front hinge joint frame (31) are connected through a pin shaft (346) and can not be rotated and fixed, a bearing is arranged at the connecting part of the hinge joint main shaft (33) and the front hinge joint frame (31) and is locked through a locking nut, and the hinge joint main shaft and the front hinge joint frame can rotate after being assembled.
4. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 1, characterized in that: drive arrangement (6) include group battery (61), group battery (61) and drive controller (62) electric connection, drive controller (62) and driving motor (63) electric connection, two driving motor (63) are connected through rear wheel (5) of gear box and automobile body (1) both sides, as the drive wheel, and front wheel (4) are as follows the driving wheel, front wheel (4) are single or a plurality of.
5. The four-fulcrum multi-steering narrow roadway articulated forklift truck of any one of claims 1-4, wherein: the power system comprises an articulated steering hydraulic motor (75) and a transmission gear set (34), the articulated steering hydraulic motor (75) is linked with the transmission gear set (34), and the transmission gear set (34) is linked with the articulated main shaft (33).
6. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 5, characterized in that: the transmission gear set (34) comprises a driving gear (341), the driving gear (341) is in transmission connection with the hinged steering hydraulic motor (75) and is meshed with a large ring of a transition gear (343), a small ring of the transition gear (343) is meshed with a driven gear (345), the driven gear (345) is connected with the hinged main shaft (33), the transition gear (343) is fixed on a transition gear shaft (344) through a bearing, the driving gear (341) and the transition gear (343) are fixed on a rear hinged frame (32) through a gear fixing frame (342), and the driven gear (345) and the hinged main shaft (33) are connected through a key and cannot rotate and be fixed.
7. The narrow roadway articulated forklift of any one of claims 1 to 4 and 6, wherein: the power system comprises a hydraulic oil tank (71), a gear pump (72) and a motor (73), an oil outlet of the hydraulic oil tank (71) is communicated with an oil inlet of the gear pump (72), the motor (73) is in power connection with the gear pump (72), an oil outlet of the gear pump (72) is communicated with an oil inlet of a hydraulic steering gear (77), the hydraulic steering gear (77) is communicated with an electromagnetic reversing valve (74), a working oil port of the electromagnetic reversing valve (74) is communicated with a hinged steering hydraulic motor (75) used for driving the lifting body (2) to steer, another working oil port of the electromagnetic reversing valve (74) is communicated with a front wheel steering hydraulic motor (76) used for driving the front wheel (4) to steer, the front wheel steering hydraulic motor (76) is in power connection with the front wheel (4), and the motor (73) is electrically connected with a controller (78).
8. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 7, characterized in that: the front wheel steering hydraulic motor (76) is respectively connected with the front wheels (4) on two sides of the lifting body (2) in a gear meshing mode.
9. The four-fulcrum multi-steering narrow roadway articulated forklift of claim 7, characterized in that: the front wheel steering hydraulic motor (76) is connected with the front wheel (4) on one side of the lifting body (2) in a gear meshing mode to form a driving steering wheel, and the front wheel (4) on the other side of the lifting body is connected with the driving steering wheel through a connecting rod to form a driven steering wheel.
10. A four-fulcrum multi-steering narrow roadway articulated forklift truck according to claim 8 or 9, characterized in that: the front wheels (4) are mounted on a front wheel frame (41) through a transverse shaft, the front wheel frame (41) is connected with an outer ring with teeth of a rotary support (42), an inner ring of the front wheel frame is connected with a swing bridge (43), the two front wheels (4) are symmetrically mounted on the swing bridge (43), a front wheel steering hydraulic motor (76) is mounted on the swing bridge (43), a steering pinion (44) is connected to an output shaft of the front wheel steering hydraulic motor (76), and the steering pinion (44) is meshed with the rotary support (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911008.6A CN110626995A (en) | 2019-09-25 | 2019-09-25 | Four-fulcrum multi-steering narrow roadway articulated forklift |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910911008.6A CN110626995A (en) | 2019-09-25 | 2019-09-25 | Four-fulcrum multi-steering narrow roadway articulated forklift |
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| CN110626995A true CN110626995A (en) | 2019-12-31 |
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| CN201910911008.6A Pending CN110626995A (en) | 2019-09-25 | 2019-09-25 | Four-fulcrum multi-steering narrow roadway articulated forklift |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115320712A (en) * | 2022-08-23 | 2022-11-11 | 杰瑞环境科技有限公司 | Steering device for vehicle body |
| WO2023108966A1 (en) * | 2021-12-14 | 2023-06-22 | 合肥搬易通科技发展有限公司 | Independent electronic steering axle and four-fulcrum counterbalance forklift |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2356611A (en) * | 2000-10-27 | 2001-05-30 | Translift Engineering Ltd | An articulated lift truck |
| FR2840045A1 (en) * | 2002-05-27 | 2003-11-28 | Manitou Bf | Hydrostatic transmission for articulated fork lift, comprises separate hydrostatic pumps to drive hydraulic motors in each back wheel and cams driven by steering which regulate back wheel speeds |
| CN203402897U (en) * | 2013-08-26 | 2014-01-22 | 山东威力天地机械股份有限公司 | Four-wheel drive forklift truck suitable for loading and unloading goods in container |
| GB2510927A (en) * | 2013-06-14 | 2014-08-20 | Combilift | Steering mechanism for an articulated vehicle |
| DE102013206794A1 (en) * | 2013-04-16 | 2014-10-16 | Zf Friedrichshafen Ag | Arrangement and method for detecting a steering angle when driving |
| CN205709728U (en) * | 2016-04-29 | 2016-11-23 | 马鞍山福永智能科技有限公司 | A kind of Zhai Xiang road fork truck rotary apparatus |
| CN106672862A (en) * | 2017-02-14 | 2017-05-17 | 苏州先锋物流装备科技有限公司 | Hydraulic steering applied to reach truck |
-
2019
- 2019-09-25 CN CN201910911008.6A patent/CN110626995A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2356611A (en) * | 2000-10-27 | 2001-05-30 | Translift Engineering Ltd | An articulated lift truck |
| FR2840045A1 (en) * | 2002-05-27 | 2003-11-28 | Manitou Bf | Hydrostatic transmission for articulated fork lift, comprises separate hydrostatic pumps to drive hydraulic motors in each back wheel and cams driven by steering which regulate back wheel speeds |
| DE102013206794A1 (en) * | 2013-04-16 | 2014-10-16 | Zf Friedrichshafen Ag | Arrangement and method for detecting a steering angle when driving |
| GB2510927A (en) * | 2013-06-14 | 2014-08-20 | Combilift | Steering mechanism for an articulated vehicle |
| CN203402897U (en) * | 2013-08-26 | 2014-01-22 | 山东威力天地机械股份有限公司 | Four-wheel drive forklift truck suitable for loading and unloading goods in container |
| CN205709728U (en) * | 2016-04-29 | 2016-11-23 | 马鞍山福永智能科技有限公司 | A kind of Zhai Xiang road fork truck rotary apparatus |
| CN106672862A (en) * | 2017-02-14 | 2017-05-17 | 苏州先锋物流装备科技有限公司 | Hydraulic steering applied to reach truck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023108966A1 (en) * | 2021-12-14 | 2023-06-22 | 合肥搬易通科技发展有限公司 | Independent electronic steering axle and four-fulcrum counterbalance forklift |
| CN115320712A (en) * | 2022-08-23 | 2022-11-11 | 杰瑞环境科技有限公司 | Steering device for vehicle body |
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