CN105501292A - Three-support-point forklift electric power steering device - Google Patents
Three-support-point forklift electric power steering device Download PDFInfo
- Publication number
- CN105501292A CN105501292A CN201610009582.9A CN201610009582A CN105501292A CN 105501292 A CN105501292 A CN 105501292A CN 201610009582 A CN201610009582 A CN 201610009582A CN 105501292 A CN105501292 A CN 105501292A
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- China
- Prior art keywords
- plate
- leaf spring
- sensor
- column jacket
- steering
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- B62D5/04—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear
- B62D5/0457—Power-assisted or power-driven steering electrical, e.g. using an electric servo-motor connected to, or forming part of, the steering gear characterised by control features of the drive means as such
- B62D5/046—Controlling the motor
- B62D5/0463—Controlling the motor calculating assisting torque from the motor based on driver input
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D6/00—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits
- B62D6/08—Arrangements for automatically controlling steering depending on driving conditions sensed and responded to, e.g. control circuits responsive only to driver input torque
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Power Steering Mechanism (AREA)
Abstract
The invention discloses a three-support-point forklift electric power steering device comprising a steering shaft, a torque transducer, a controller and a power steering motor, wherein a steering handle is arranged on the steering shaft; the torque transducer is connected with the controller; the controller is connected with the power steering motor. The power steering device also comprises a base, a bracket arranged on the base, a torque converting mechanism, and a gear mechanism, wherein the bracket comprises an upper bottom plate, a supporting plate and a lower bottom plate; the upper end of the supporting plate is fixedly connected with the upper bottom plate; the lower end of the supporting plate is fixedly connected with the lower bottom plate; the lower bottom plate is fixedly arranged at the upper end of the base. The invention provides the three-support-point forklift electric power steering device which can save effort and is good in synchronism.
Description
Technical field
The invention belongs to electri forklift equipment field, particularly relate to a kind of three fulcrum forklift electric power-assisted steering apparatus.
Background technology
Although mechanical steering system structure is simple, cheap, stable performance, for large-tonnage fork truck particularly when fork truck at full load, the steering resisting torque that steering swivel system is subject to is very large, now needs the very large power of chaufeur could realize turning to, requires great effort very much.Along with people improve constantly the requirement of fork truck maneuvering performance, this Purely mechanical steering swivel system is substantially eliminated.
Hydraulic power-assist steering system in mechanical steering system, increases a set of hydraulic booster system carry out assisted diversion.Although it has many good qualities but also there is a lot of shortcoming, on the one hand, hydraulic power-assist steering system is complicated layout not only, seal request is high, affects greatly, there is Leakage by hydraulic fluid temperature, to environment and when needs turn to, be limited to hydraulic efficiency pressure system and there is certain hysteresis, can not make a response immediately, affect the sensitieness and followability that turn to; On the other hand, Hydraulic Pump is always standby, also in running when not needing, causes the waste of the energy, in addition, the power-assisted square that hydraulic power-assist steering system provides and chaufeur are positively related to the power of steering handwheel, and that is, the moment acting on bearing circle is larger, the power-assisted square that hydraulic power-assist steering system provides is larger, lack with the speed of a motor vehicle of fork truck and associate, namely this servo steering system only has single assist characteristic, and " road feel " is undesirable.In sum, hydraulic power-assist steering system has many shortcomings affecting turning efficiency.
Summary of the invention
In order to overcome that existing forklift steering system exists waste time and energy, deficiency that synchronism is poor, the invention provides that one is more laborsaving, the good three fulcrum forklift electric power-assisted steering apparatus of synchronism.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of three fulcrum forklift electric power-assisted steering apparatus, comprise steering shaft, torque sensor, controller, assist motor, described steering shaft is provided with steering tiller, described torque sensor is connected with described controller, described controller is connected with described assist motor, described servo steering device also comprises base, be arranged on the support on base, moment of torsion transformation mechanism and gear mechanism, described support comprises upper plate, support plate and lower shoe, the upper end of described support plate is fixedly connected with described upper plate, the lower end of described support plate is fixedly connected with described lower shoe, described lower shoe is fixed on the upper end of described base,
Described moment of torsion transformation mechanism comprises steering column jacket, swinging plate, in order to the leaf spring that swinging plate resets, sensor axis and sensor slide block, described sensor axis is rotating to be set in described steering column jacket, described upper plate has upper plate mounting hole, the lower end of described steering column jacket is fixed in described upper plate mounting hole, described steering shaft is positioned at the top of described steering column jacket, the lower end of described steering shaft is fixedly connected with the upper end of described sensor axis, the upper end of described sensor slide block is fixed on the lower end of described sensor axis, the lower end of described sensor slide block and the upper-end contact of described torque sensor, described leaf spring is fixed on described upper plate, described steering column jacket has rotate in order to swinging plate first stir groove and second and stir groove, described swinging plate crosses successively and first stirs groove, sensor axis and second is stirred groove and is fixed on described sensor axis, two end in contact of at least one end and described leaf spring in the two ends of described swinging plate,
Described gear mechanism comprises miniature gears and big gear wheel, the power take-off shaft of described assist motor installs described miniature gears, the rotating lower end being arranged on described base of described big gear wheel, described miniature gears engages with described big gear wheel, and described big gear wheel is coaxially connected with wheel flutter.
Further, described servo steering device also comprises in order to two end in contact with swinging plate and provides mechanically aided limited block component, described limited block component is fixed on described upper plate, described limited block component and described leaf spring are arranged in the both sides of described swinging plate, gap is left between described limited block component and described swinging plate, described limited block component comprises the first limiting stopper and the second limiting stopper, and described first limiting stopper and described second limiting stopper are arranged symmetrically in the side of two ends away from leaf spring of described swinging plate.
Further again, the control chip of described controller is micro controller system or DSP.
Further again, described sensor axis is arranged in described steering column jacket by bearing is rotating.
Further again, described upper plate is stepped cylindrical shape, and described upper plate mounting hole is stepped hole.
Further again, described leaf spring is fixed on described upper plate by adapter plate, described leaf spring is curved, described adapter plate is between described leaf spring and described steering column jacket, described adapter plate is curved towards the side of steering column jacket to be coordinated with steering column jacket outer wall and is fixedly connected with steering column jacket, described adapter plate is having deep-slotted chip breaker towards leaf spring side, and the concave side of described leaf spring coordinates with described deep-slotted chip breaker and is fixedly connected with adapter plate, and the lower end of described adapter plate is fixedly connected with described upper plate.
Further again, the lower end of described torque sensor is arranged on described support plate by sensor holder.
Further again, described swinging plate is rectangular-shaped, and on described sensor axis, radial direction has the rectangular through holes of passing in order to swinging plate, and the middle part of described swinging plate is bolted on described sensor axis.
Further, the lower end of described base is fixed with flange, and described flange is arranged on the inner ring of bearing, and described big gear wheel is arranged on the outer ring of bearing.
Beneficial effect of the present invention is mainly manifested in: more laborsaving, energy-conservation, compact conformation, environmental protection, efficiency is high, trackability is strong, self-aligning, quality light, easily maintenance, portable high; The synchronized links of steering tiller and wheel flutter.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of three fulcrum forklift electric power-assisted steering apparatus.
Fig. 2 is a kind of part sectional view of three fulcrum forklift electric power-assisted steering apparatus.
Fig. 3 is the position relationship schematic diagram of leaf spring, swinging plate and limiting stopper.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1 ~ Fig. 3, a kind of three fulcrum forklift electric power-assisted steering apparatus, comprise steering shaft 2, torque sensor 8, controller 11, assist motor 23, described steering shaft 2 is provided with steering tiller 1, described torque sensor 8 is connected with described controller 11, described controller 11 is connected with described assist motor 23, described servo steering device also comprises base 20, be arranged on the support on base 20, moment of torsion transformation mechanism and gear mechanism, described support comprises upper plate 7, support plate and lower shoe 14, the upper end of described support plate is fixedly connected with described upper plate 7, the lower end of described support plate is fixedly connected with described lower shoe 14, described lower shoe 14 is fixed on the upper end of described base 20,
Described moment of torsion transformation mechanism comprises steering column jacket 3, swinging plate 27, in order to the leaf spring 6 that swinging plate 27 resets, sensor axis 25 and sensor slide block 30, described sensor axis 25 is rotating to be set in described steering column jacket 3, described upper plate 7 has upper plate mounting hole, the lower end of described steering column jacket 3 is fixed in described upper plate 7 mounting hole, described steering shaft 2 is positioned at the top of described steering column jacket 3, the lower end of described steering shaft 2 is fixedly connected with the upper end of described sensor axis 25, the upper end of described sensor slide block 30 is fixed on the lower end of described sensor axis 25, the lower end of described sensor slide block 30 and the upper-end contact of described torque sensor 8, described leaf spring 6 is fixed on described upper plate 7, described steering column jacket 3 has rotate in order to swinging plate 27 first stir groove and second and stir groove, described swinging plate 27 crosses successively and first stirs groove, sensor axis 25 and second is stirred groove and is fixed on described sensor axis 25, two end in contact of at least one end and described leaf spring 6 in the two ends of described swinging plate 27,
Described gear mechanism comprises miniature gears 16 and big gear wheel 17, the power take-off shaft of described assist motor 23 installs described miniature gears 16, the rotating lower end being arranged on described base 20 of described big gear wheel 17, described miniature gears 16 engages with described big gear wheel 17, and described big gear wheel 17 is coaxially connected with wheel flutter.
Further, described servo steering device also comprises in order to two end in contact with swinging plate and provides mechanically aided limited block component, described limited block component is fixed on described upper plate 7, described limited block component and described leaf spring 6 are arranged in the both sides of described swinging plate 27, gap is left between described limited block component and described swinging plate 27, described limited block component comprises the first limiting stopper 4 and the second limiting stopper 24, and described first limiting stopper 4 and described second limiting stopper 24 are arranged symmetrically in the side of two ends away from leaf spring of described swinging plate 27.
Further again, the control chip of described controller 11 is micro controller system or DSP.DSP is digital signal processor.
Further again, described sensor axis 25 is arranged in described steering column jacket 3 by bearing is rotating.
Further again, described upper plate 7 is in stepped cylindrical shape, and described upper plate mounting hole is stepped hole.
Further again, described leaf spring 6 is fixed on described upper plate 7 by adapter plate 5, described leaf spring is curved, described adapter plate 5 is between described leaf spring 6 and described steering column jacket 3, described adapter plate 5 is curved towards the side of steering column jacket 3 to be coordinated with steering column jacket 3 outer wall and is fixedly connected with steering column jacket 3, described adapter plate 5 is having deep-slotted chip breaker towards leaf spring 6 side, the concave side of described leaf spring 6 coordinates with described deep-slotted chip breaker and is fixedly connected with adapter plate 5, and the lower end of described adapter plate 5 is fixedly connected with described upper plate 7.
Further again, the lower end of described torque sensor 8 is arranged on described support plate by sensor holder 9.
Further again, described swinging plate 27 is in rectangular-shaped, and on described sensor axis 25, radial direction has the rectangular through holes of passing in order to swinging plate 27, and the middle part of described swinging plate 27 is bolted on described sensor axis 25.
Further, the lower end of described base 20 is fixed with flange 19, and described flange 19 is arranged on the inner ring of bearing, and described big gear wheel 17 is arranged on the outer ring of bearing.
In the present embodiment, described swinging plate 27 is in rectangular-shaped, and middle part has tapped through hole, and sensor axis 25 has the rectangular through holes and tapped bore that coordinate swinging plate 27, swinging plate 27 penetrates sensor axis 25, and is bolted; Described support plate comprises the first support plate 13, second support plate 21 and the 3rd support plate 22, and described upper plate 7 is in stepped cylindrical shape, and inside has stepped hole, and edge has tapped bore, and the first support plate 13, second support plate 21, the 3rd support plate 22 upper end be bolted; Lower shoe 14 is in stepped cylindrical shape, inside have through hole, edge has bar hole, and the first support plate 13, second support plate 21, the 3rd support plate 22 coordinate and welded together, and the lower end of described sensor slide block 30 and the upper end of described sensor 8 are positioned at the stepped hole of upper plate 7; The curved shape of described leaf spring 6, middle part has tapped bore; Adapter plate 5 is towards the side of steering column jacket and steering column jacket 3 weld together, and adapter plate 5 is connected towards leaf spring side by bolt and leaf spring 6, the lower end of adapter plate 5 and the upper end of upper plate 7 welded together; Described upper plate 7 is welded with the first limiting stopper 4 and the second limiting stopper 24, first limiting stopper 4 and the second limiting stopper 24 near swinging plate 27 two ends be arranged symmetrically, and inner side becomes arc-shaped, coordinate with steering column jacket 3 and weld together; Swinging plate 27 passes the rectangular through holes of steering column jacket 3, when cw or conter clockwise turn over the angle of restriction, and the end contact of swinging plate 27 and the first limiting stopper 4 or the second limiting stopper 24; Described sensor holder 9 two ends respectively with the first support plate 13 and the second support plate 21 are bolted, and have arcuate socket in sensor holder 9, coordinate with the face of cylinder of sensor 8, sensor 8 is fixed on sensor holder 9; Described base 20 is secured by bolts on flange 19, and flange 19 and big gear wheel 17 are secured by bolts in bearing 18 inner ring, assist motor 23 are equipped with miniature gears 16.
As shown in Figure 1, connected by the first support plate 13, second support plate 21, the 3rd support plate 22 between upper plate 7 and lower shoe 14, sensor holder 9 two ends are individually fixed on the first support plate 13 and the second support plate 21, sensor 8 is fixed on sensor holder 9, base 20 is connected by flange 19 with bearing 18, assist motor 23 is connected with big gear wheel 17 by miniature gears 16 with bearing 18, and controller 11 is connected by wire 10 with sensor 8, and controller 11 is connected by wire 12 with assist motor 23.
As shown in Figure 2, sensor axis 25 is connected with bearing 28 by bearing 26 with steering column jacket 3, the sensor axis 25 of bearing 28 lower end is equipped with snap ring 29, lower shoe 14 and base 20 limit radial through key 32, axially limited by snap ring 31 and nut 15, steering column jacket 3 is fixed on upper plate 7, and adapter plate 5 is fixed on the outer wall of steering column jacket 3, upper plate 7, leaf spring 6 is fixed on adapter plate 5, and swinging plate 27 crosses steering column jacket 3 and sensor axis 25.Described steering column jacket 3 and upper plate 7 weld, and steering column jacket 3 has the rectangular through holes of circular hole and cooperation swinging plate 27, inside has through hole from top to bottom, and has the stepped hole of running in bearings 26 and bearing 28.
Principle of work of the present invention is:
Described sensor 8 detects that the corner of steering shaft 2 reaches lower limit T
hmintime, controller 11 receives the voltage signal that sensor 8 exports, via controller 11 analyzing and processing, controls assist motor 23 and starts to provide power-assisted square.
When sensor 8 detects that the corner of steering shaft 2 reaches higher limit T
hmaxtime, the voltage signal that controller 11 receiving sensor 8 exports, via controller 11 analyzing and processing, controlling assist motor 23 provides power-assisted square to reach maxim, and remains unchanged.
When sensor 8 detects that the corner of steering shaft 2 reaches lower limit T again
hmintime, the voltage signal that controller 11 receiving sensor 8 exports, via controller 11 analyzing and processing, controls assist motor 23 and stops providing power-assisted square.
Working process of the present invention is: when rotating steering tiller 1, steering tiller 1 drives steering shaft 2, while steering shaft 2 drives swinging plate 27 to compress leaf spring 6, swinging plate 27 is with dynamic sensor slide block 30 to stir sensor 8, the voltage signal that sensor 8 exports changes, voltage signal passes to controller 11 by wire, controller 11 after receiving surveyed voltage signal according to certain assist characteristic control policy, exporting target current drives assist motor 23 to rotate, thus make assist motor 23 produce suitable power-assisted square, with be applied to the resisting moment overcoming wheel flutter together with the torque on steering tiller 1 and complete and turn to, and when assist motor 23 cannot provide power-assisted square, reach the higher limit T of automatically controlled power-assisted square in the torque of steering shaft 2
hmaxtime, continue to rotate steering shaft 2, thus make swinging plate 27 push the first limiting stopper 4 or the second limiting stopper 24, first limiting stopper 4 or the second limiting stopper 24 drive upper plate 7, upper plate 7 drives lower shoe 14 by support plate, lower shoe 14 drives base 20, and base 20 drives wheel flutter, and then provides certain mechanical auxiliary moment for wheel flutter.
The less power of the present invention rotates steering tiller 1, and assist motor 23 just can provide suitable automatically controlled power-assisted square, the electric boosting steering system compared to existing technology, and wheel flutter turns to lighter; Simultaneously when automatically controlled power-assisted square lost efficacy, due to the design of limited block component, certain mechanical auxiliary moment can also be provided, help wheel flutter to complete and turn to.
Except above preferred embodiment, the present invention also has other embodiment, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (9)
1. a fulcrum forklift electric power-assisted steering apparatus, comprise steering shaft, torque sensor, controller, assist motor, described steering shaft is provided with steering tiller, described torque sensor is connected with described controller, described controller is connected with described assist motor, it is characterized in that: described servo steering device also comprises base, be arranged on the support on base, moment of torsion transformation mechanism and gear mechanism, described support comprises upper plate, support plate and lower shoe, the upper end of described support plate is fixedly connected with described upper plate, the lower end of described support plate is fixedly connected with described lower shoe, described lower shoe is fixed on the upper end of described base,
Described moment of torsion transformation mechanism comprises steering column jacket, swinging plate, in order to the leaf spring that swinging plate resets, sensor axis and sensor slide block, described sensor axis is rotating to be set in described steering column jacket, described upper plate has upper plate mounting hole, the lower end of described steering column jacket is fixed in described upper plate mounting hole, described steering shaft is positioned at the top of described steering column jacket, the lower end of described steering shaft is fixedly connected with the upper end of described sensor axis, the upper end of described sensor slide block is fixed on the lower end of described sensor axis, the lower end of described sensor slide block and the upper-end contact of described torque sensor, described leaf spring is fixed on described upper plate, described steering column jacket has rotate in order to swinging plate first stir groove and second and stir groove, described swinging plate crosses successively and first stirs groove, sensor axis and second is stirred groove and is fixed on described sensor axis, in the two ends of described swinging plate at least one end respectively with two end in contact of described leaf spring,
Described gear mechanism comprises miniature gears and big gear wheel, the power take-off shaft of described assist motor installs described miniature gears, the rotating lower end being arranged on described base of described big gear wheel, described miniature gears engages with described big gear wheel, and described big gear wheel is coaxially connected with wheel flutter.
2. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1, it is characterized in that: described servo steering device also comprises in order to two end in contact with swinging plate and provides mechanically aided limited block component, described limited block component is fixed on described upper plate, described limited block component and described leaf spring are arranged in the both sides of described swinging plate, gap is left between described limited block component and described swinging plate, described limited block component comprises the first limiting stopper and the second limiting stopper, described first limiting stopper and described second limiting stopper lay respectively at the side of two ends away from leaf spring of described swinging plate.
3. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, is characterized in that: the control chip of described controller is micro controller system or DSP.
4. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, is characterized in that: described sensor axis is arranged in described steering column jacket by bearing is rotating.
5. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, it is characterized in that: described upper plate is stepped cylindrical shape, described upper plate mounting hole is stepped hole.
6. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, it is characterized in that: described leaf spring is fixed on described upper plate by adapter plate, described leaf spring is curved, described adapter plate is between described leaf spring and described steering column jacket, described adapter plate is curved towards the side of steering column jacket to be coordinated with steering column jacket outer wall and is fixedly connected with steering column jacket, described adapter plate is having deep-slotted chip breaker towards leaf spring side, the concave side of described leaf spring coordinates with described deep-slotted chip breaker and is fixedly connected with adapter plate, the lower end of described adapter plate is fixedly connected with described upper plate.
7. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, is characterized in that: the lower end of described torque sensor is arranged on described support plate by sensor holder.
8. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, it is characterized in that: described swinging plate is rectangular-shaped, on described sensor axis, radial direction has the rectangular through holes of passing in order to swinging plate, and the middle part of described swinging plate is bolted on described sensor axis.
9. a kind of three fulcrum forklift electric power-assisted steering apparatus as claimed in claim 1 or 2, it is characterized in that: the lower end of described base is fixed with flange, described flange is arranged on the inner ring of bearing, and described big gear wheel is arranged on the outer ring of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009582.9A CN105501292B (en) | 2016-01-05 | 2016-01-05 | A kind of three fulcrum forklift electric power-assisted steering apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610009582.9A CN105501292B (en) | 2016-01-05 | 2016-01-05 | A kind of three fulcrum forklift electric power-assisted steering apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105501292A true CN105501292A (en) | 2016-04-20 |
| CN105501292B CN105501292B (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610009582.9A Active CN105501292B (en) | 2016-01-05 | 2016-01-05 | A kind of three fulcrum forklift electric power-assisted steering apparatus |
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| Country | Link |
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| CN (1) | CN105501292B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715187A (en) * | 2018-06-25 | 2018-10-30 | 浙江工业大学 | The double-deck long spring dtc signal acquisition device |
| CN108715188A (en) * | 2018-06-25 | 2018-10-30 | 浙江工业大学 | The double baffle-type dtc signal acquisition device of the short spring of single layer |
| CN108910767A (en) * | 2018-06-25 | 2018-11-30 | 浙江工业大学 | A kind of fork truck dtc signal acquisition device |
| CN113501468A (en) * | 2021-07-22 | 2021-10-15 | 浙江加力仓储设备股份有限公司 | Three-pivot balance weight type forklift |
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| JP2002347634A (en) * | 2001-05-29 | 2002-12-04 | Honda Motor Co Ltd | Electric power steering device |
| CN2726995Y (en) * | 2004-08-31 | 2005-09-21 | 安徽合力股份有限公司 | Three supporting points electric fork lift hydraulic steering device |
| CN201971058U (en) * | 2011-04-01 | 2011-09-14 | 赣州五环机器有限责任公司 | Steering axle for three-wheel forklift |
| CN202294949U (en) * | 2011-10-26 | 2012-07-04 | 北京汽车股份有限公司 | Electric power steering system of off-highway vehicle |
| CN205327157U (en) * | 2016-01-05 | 2016-06-22 | 浙江工业大学 | Electronic power assisted steering device of three fulcrum fork truck |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2002347634A (en) * | 2001-05-29 | 2002-12-04 | Honda Motor Co Ltd | Electric power steering device |
| CN2726995Y (en) * | 2004-08-31 | 2005-09-21 | 安徽合力股份有限公司 | Three supporting points electric fork lift hydraulic steering device |
| CN201971058U (en) * | 2011-04-01 | 2011-09-14 | 赣州五环机器有限责任公司 | Steering axle for three-wheel forklift |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108715187A (en) * | 2018-06-25 | 2018-10-30 | 浙江工业大学 | The double-deck long spring dtc signal acquisition device |
| CN108715188A (en) * | 2018-06-25 | 2018-10-30 | 浙江工业大学 | The double baffle-type dtc signal acquisition device of the short spring of single layer |
| CN108910767A (en) * | 2018-06-25 | 2018-11-30 | 浙江工业大学 | A kind of fork truck dtc signal acquisition device |
| CN108715188B (en) * | 2018-06-25 | 2023-05-30 | 浙江工业大学 | Single-layer short spring double-baffle type torque signal acquisition device |
| CN108910767B (en) * | 2018-06-25 | 2023-08-08 | 浙江工业大学 | Torque signal acquisition device for forklift |
| CN108715187B (en) * | 2018-06-25 | 2023-10-03 | 浙江工业大学 | Double-layer long spring type torque signal acquisition device |
| CN113501468A (en) * | 2021-07-22 | 2021-10-15 | 浙江加力仓储设备股份有限公司 | Three-pivot balance weight type forklift |
| CN113501468B (en) * | 2021-07-22 | 2024-05-07 | 浙江加力仓储设备股份有限公司 | Three-fulcrum counterweight type forklift |
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| Publication number | Publication date |
|---|---|
| CN105501292B (en) | 2017-11-07 |
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