CN103287487A - Four-way forklift structure - Google Patents
Four-way forklift structure Download PDFInfo
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- CN103287487A CN103287487A CN2013102115096A CN201310211509A CN103287487A CN 103287487 A CN103287487 A CN 103287487A CN 2013102115096 A CN2013102115096 A CN 2013102115096A CN 201310211509 A CN201310211509 A CN 201310211509A CN 103287487 A CN103287487 A CN 103287487A
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- wheel
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- directional wheel
- hydraulic ram
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Abstract
The invention provides a four-way forklift structure applied to the field of forklift equipment. The four-way forklift structure comprises a forklift body base (1). A universal wheel (2) and a directional wheel (3) are mounted at the front end of the bottom of the forklift body base (1). A drive wheel (4) is mounted at the rear end of the forklift body base (1). The directional wheel (3) is connected with a hydraulic cylinder (5) capable of driving the directional wheel (3) to turn. The hydraulic cylinder (5) is connected with an operating switch (6) which controls the hydraulic cylinder (5) to telescope. The drive wheel (4) is connected with a steering motor (7) through a gear set (26). The steering motor (7) is connected with a steering wheel (8) which controls the steering motor (7) to rotate. The drive wheel (4) is also connected with a drive part (17) which is connected with a control part (18). The four-way forklift structure is simple in structure, convenient to operate, low in steering and running noise, and capable of allowing for four-way running of a forklift and making the forklift more maneuverable.
Description
Technical field
The invention belongs to the fork truck apparatus field, more particularly, relate to a kind of four-way fork lift truck structure.
Background technology
The transportation by lighter fork truck is widely used in harbour, station, airport, goods yard, factory floor, warehouse, circulation center and DISTRIBUTION CENTRE etc., and can enter loading and unloading, the transport operation that carries out pallet cargo in cabin, compartment and the freight container.Be pallet traffic, freight container transportation imperative equipment.The material handling of most of enterprise has broken away from original a dead lift, the substitute is the conveyorization based on fork truck.Electri forklift is a kind of in the fork truck, and electri forklift is easy and simple to handle, pollution-free, noise is little, and along with these advantages and the people attention to environmental protection, electri forklift is progressively replacing diesel fork lift truck.What but domestic present electri forklift was mainly used all is DC machine, is not easy to maintenance, and needs often maintenance; Driving and steering system is also many just uses mechanical steering and fluid-link steering, and human input is big, inconvenient operation.
Summary of the invention
Technical matters to be solved by this invention is: provide a kind of simple in structure, easy to operate four-way fork lift truck structure, described driving and steering system can directly to travel and cross running between freely make things convenient for switching, thereby realized the four-way driving functions of fork truck, improved the maneuvering performance of fork truck.
Solve above-described technical matters, the technical scheme that the present invention takes is:
The present invention is a kind of four-way fork lift truck structure, described transportation by lighter fork truck comprises underbody, described underbody bottom front is installed cardan wheel and directional wheel, drive wheel is installed in the underbody rear end, directional wheel with can drive the hydraulic ram that directional wheel turns to and be connected, hydraulic ram is connected with the operating switch that the control hydraulic ram stretches, described drive wheel is connected with steer motor by gear assembly, steer motor is connected with the bearing circle that the control steer motor is rotated, described drive wheel is connected with drive element simultaneously, and drive element is connected with function unit.
Preferably, be triangularly arranged between described cardan wheel, directional wheel and the drive wheel, directional wheel flexibly connects by connecting support I and underbody bottom, hydraulic ram comprises cylinder body, and piston, hydraulic ram are installed in the underbody bottom, connect support I side steering block is set, the rod end that the piston of described hydraulic ram extends cylinder body is connected with steering block, and when operating switch was flexible by control hydraulic oil cylinder driving piston, piston was set to drive the structure of directional wheel left-right rotation.
Preferably, described drive wheel flexibly connects by connecting support II and underbody bottom, gear assembly comprises miniature gears and the bull gear that meshes by teeth mutually, miniature gears is connected with steer motor, bull gear be connected the support II and connect, bearing circle is connected with stepping motor, and stepping motor is connected with steer motor by electric-controlled parts.
Preferably, cavity and rear chamber before forming between the cylinder body of described hydraulic ram and the piston, oil pump is communicated with preceding cavity and rear chamber respectively by two connection pipes, connect the sensor that can detect the drive wheel steering angle is set on the support II, sensor with can display driver the read-out of wheel steering angle numerical value be connected, after directional wheel turned to, bearing circle can be controlled drive wheel and forward the position parallel with directional wheel to.
Preferably, described drive element comprises drive motor, change speed gear box, and described drive motor is connected with change speed gear box, and change speed gear box is connected with drive wheel.Change speed gear box is set to change the structure of drive wheel rotating speed.
Preferably, described hydraulic oil pump also comprises electromagnetic valve, and described electromagnetic valve is installed between oil pump and the connection pipe, and electromagnetic valve is connected with operating switch, and described operating switch is set to control electromagnetic valve and opens and closes, thereby promotes the flexible structure of piston.
Preferably, steering locking angle degree when described directional wheel turns left is set to 90 degree, steering locking angle degree during the directional wheel turning clockwise is set to 90 degree, when the hydraulic oil of described oil pump enters the preceding cavity of hydraulic ram by electromagnetic valve, the structure that described directional wheel is set to turn left, when the hydraulic oil of oil pump entered the rear chamber of hydraulic ram by electromagnetic valve, described directional wheel was set to the structure of turning clockwise.
Preferably, described cardan wheel flexibly connects by connecting support III and underbody bottom.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
Four-way fork lift truck structure of the present invention, by between directional wheel and underbody, hydraulic ram being set, turning member and drive motor are set between drive wheel and underbody, and hydraulic ram and drive motor are respectively by operating switch and function unit control work, such structure setting, simple in structure, easy to operate, described driving and steering system can directly to travel and cross running between freely make things convenient for switching, namely when hydraulic ram and steer motor are not worked, described transportation by lighter fork truck can by drive element realize advancing or retreat directly to travelling, when needs transportation by lighter fork truck ridden in left or right direction, by the action of operating switch control hydraulic ram, hydraulic ram is according to the requirement of fork truck ridden in left or right direction, when the hydraulic oil of oil pump enters the preceding cavity of hydraulic ram by electromagnetic valve, the structure that directional wheel is set to turn left, when the hydraulic oil of oil pump enters the rear chamber of hydraulic ram by electromagnetic valve, be set to the structure of turning clockwise to wheel, after directional wheel rotates, operating personal rotates by bearing circle and drives the stepping motor rotation, the impulse singla that stepping motor produces is input to electric-controlled parts, the work of electric-controlled parts control steer motor, and this moment, the numerical value of the steering angle when read-out meeting display operation switch control directional wheel turns to, the steering angle of the steering angle Numerical Control (NC) drive wheel when operating personal can turn to according to directional wheel, thereby guarantee that the angle that drive wheel turns to is consistent with the steering angle of directional wheel, like this, to be in parallel state when directional wheel turns to drive wheel, thus realize the transportation by lighter fork truck about turn to and travel.After the driving and steering system of transportation by lighter fork truck of the present invention is used for the transportation by lighter fork truck, can realize the four-way driving functions of fork truck, improve the maneuvering performance of fork truck.
Description of drawings
Make briefly bright to each accompanying drawing of this specification sheets expressed content and the mark among the figure below:
Fig. 1 is the forward sight structural representation of four-way fork lift truck structure of the present invention;
Fig. 2 is the structural representation of the hydraulic ram of four-way fork lift truck structure of the present invention;
Be labeled as in the accompanying drawing: 1, underbody; 2, cardan wheel; 3, directional wheel; 4, drive wheel; 5, hydraulic ram; 6, operating switch; 7, steer motor; 8, bearing circle; 9, connect the support I; 10, oil pump; 11, cylinder body; 12, piston; 13, connect the support II; 14, miniature gears; 15, bull gear; 16, preceding cavity; 17, drive element; 18, function unit; 19, rear chamber; 20, sensor; 21, read-out; 22, drive motor; 23, change speed gear box; 24, electromagnetic valve; 25, connect the support III; 26, gear assembly; 27, steering block.
The specific embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and principle of work etc. are described in further detail:
As accompanying drawing 1, shown in the accompanying drawing 2, the present invention is a kind of four-way fork lift truck structure, described transportation by lighter fork truck comprises underbody 1, underbody 1 bottom front is installed cardan wheel 2 and directional wheel 3, drive wheel 4 is installed in underbody 1 rear end, directional wheel 3 with can drive the hydraulic ram 5 that directional wheel 3 turns to and be connected, hydraulic ram 5 is connected with the operating switch 6 that control hydraulic ram 5 stretches, drive wheel 4 is connected with steer motor 7 by gear assembly 26, steer motor 7 is connected with the bearing circle 8 that control steer motor 7 is rotated, drive wheel 4 is connected with drive element 17 simultaneously, and drive element 17 is connected with function unit 18.
Preferably, be triangularly arranged between described cardan wheel 2, directional wheel 3 and the drive wheel 4, directional wheel 3 flexibly connects with underbody 1 bottom by connecting support I 9, hydraulic ram 5 comprises 10, cylinder body 11, piston 12, hydraulic ram 5 is installed in underbody 1 bottom, connect support I 9 sides steering block 27 is set, the rod end that the piston 12 of described hydraulic ram 5 extends cylinder body 11 is connected with steering block 27, when operating switch 6 control plungers 12 stretched, piston 12 was set to drive the structure of directional wheel 3 left-right rotation.
Preferably, described drive wheel 4 flexibly connects with underbody 1 bottom by connecting support II 13, described gear assembly 26 comprises miniature gears 14 and the bull gear 15 that meshes by teeth mutually, miniature gears 14 is connected with steer motor 7, bull gear 15 be connected support II 13 and connect, bearing circle 8 is connected with stepping motor, and stepping motor is connected with steer motor 7 by electric-controlled parts.
Preferably, cavity 16 and rear chamber 19 before forming between the cylinder body 11 of described hydraulic ram 5 and the piston 12, oil pump 10 is communicated with preceding cavity 16 and rear chamber 19 respectively by two connection pipes, connect the sensor 20 that can detect drive wheel 4 steering angles is set on the support II 13, sensor 20 is connected with the read-out 21 of can display driver taking turns 4 steering angle numerical value, after described directional wheel 3 turned to, bearing circle 8 can be controlled drive wheel 4 and forward the position parallel with directional wheel to.
Preferably, described drive element 17 comprises drive motor 22, change speed gear box 23, and described drive motor 22 is connected with change speed gear box 23, and change speed gear box 23 is connected with drive wheel 4.
Preferably, described hydraulic oil pump 5 also comprises electromagnetic valve 24, and described electromagnetic valve 24 is installed between oil pump 10 and the connection pipe, and electromagnetic valve 24 is connected with operating switch 6, described operating switch 6 is set to control electromagnetic valve 24 and opens and closes, thereby promotes the structure that piston 12 stretches.
Preferably, steering locking angle degree when described directional wheel 3 turns left is set to 90 degree, steering locking angle degree during directional wheel 3 turning clockwises is set to 90 degree, when the hydraulic oil of described oil pump 10 enters the preceding cavity 16 of hydraulic ram 5 by electromagnetic valve 24, the structure that described directional wheel 3 is set to turn left, when the hydraulic oil of oil pump 10 entered the rear chamber 19 of hydraulic ram 5 by electromagnetic valve 24, described directional wheel 3 was set to the structure of turning clockwise.
Preferably, described cardan wheel 2 flexibly connects with underbody 1 bottom by connecting support III 25.
Four-way fork lift truck structure of the present invention, by between directional wheel 3 and underbody, 1 hydraulic ram 5 being set, drive element 17 and steer motor 7 are set between drive wheel 4 and underbody 1, and hydraulic ram 5 and drive motor 7 are respectively by operating switch 6 and function unit 18 control work, such structure setting, make that the driving and steering system of transportation by lighter fork truck is simple in structure, easy to operate, turn to the noise that travels low, described driving and steering system can directly to travel and cross running between freely make things convenient for switching, namely when hydraulic ram 5 and steer motor 7 are not worked, the transportation by lighter fork truck can by drive element 17 realize advancing or retreat directly to travelling, when needs transportation by lighter fork truck ridden in left or right direction, electromagnetic valve 24 by operating switch 6 control hydraulic rams 5 is opened, at this moment, hydraulic ram 5 is according to the requirement of fork truck ridden in left or right direction, when the hydraulic oil of oil pump 10 enters the preceding cavity 16 of hydraulic ram 5 by the electromagnetic valve of opening 24, the structure that directional wheel 3 is set to turn left, when the hydraulic oil of oil pump 10 entered the rear chamber 19 of hydraulic ram 5 by the electromagnetic valve of opening 24, directional wheel 3 was set to the structure of turning clockwise.After directional wheel 3 rotates, operating personal rotates by bearing circle 8 and drives the stepping motor rotation, the impulse singla that stepping motor produces is input to electric-controlled parts, 7 work of electric-controlled parts control steer motor, and this moment, steering angle numerical value when read-out 21 meeting display operation switches 6 control directional wheels 3 turn to, steering angle numerical value when operating personal turns to according to directional wheel is controlled the steering angle of drive wheel 4, namely control the rotational angle of bearing circle 8, thereby guarantee that the angle that drive wheel 4 turns to is consistent with the steering angle of directional wheel 3, like this, directional wheel 3 with will be in parallel state after drive wheel 4 turns to, thereby realize the transportation by lighter fork truck about turn to.After directional wheel 3 and drive wheel 4 are all realized rotating, realize being moved to the left or moving right of transportation by lighter fork truck by drive element 17 again.After driving and steering system of the present invention is used for the transportation by lighter fork truck, can realize the four-way driving functions of fork truck, enlarge the function of transportation by lighter fork truck, improve the whole maneuvering performance of transportation by lighter fork truck.
By reference to the accompanying drawings the present invention has been carried out exemplary description above; obviously the concrete realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or without improving design of the present invention and technical scheme are directly applied to other occasions, all in protection scope of the present invention.
Claims (8)
1. four-way fork lift truck structure, described fork lift truck structure comprises underbody (1), it is characterized in that: the bottom front of described underbody (1) is installed cardan wheel (2) and directional wheel (3), drive wheel (4) is installed in underbody (1) rear end, directional wheel (3) with can drive the hydraulic ram (5) that directional wheel (3) turns to and be connected, hydraulic ram (5) is connected with the operating switch (6) that control hydraulic ram (5) stretches, described drive wheel (4) is connected with steer motor (7) by gear assembly (26), steer motor (7) is connected with the bearing circle (8) that control steer motor (7) is rotated, described drive wheel (4) is connected with drive element (17) simultaneously, and drive element (17) is connected with function unit (18).
2. four-way fork lift truck structure according to claim 1, it is characterized in that: described cardan wheel (2), be triangularly arranged between directional wheel (3) and the drive wheel (4), directional wheel (3) flexibly connects with underbody (1) bottom by connecting support I (9), hydraulic ram (5) comprises cylinder body (11), piston (12), hydraulic ram (5) is installed in underbody (1) bottom, connect support I (9) side steering block (27) is set, the rod end that the piston (12) of described hydraulic ram (5) extends cylinder body (11) is connected with steering block (27), when operating switch (6) was flexible by control oil cylinder (10) driven plunger (12), piston (12) was set to drive the structure of directional wheel (3) left-right rotation.
3. four-way fork lift truck structure according to claim 1 and 2, it is characterized in that: described drive wheel (4) flexibly connects with underbody (1) bottom by connecting support II (13), described gear assembly (26) comprises miniature gears (14) and the bull gear (15) that meshes by teeth mutually, miniature gears (14) is connected with steer motor (7), bull gear (15) be connected support II (13) and connect, bearing circle (8) is connected with stepping motor, and stepping motor is connected with steer motor (7) by electric-controlled parts.
4. four-way fork lift truck structure according to claim 3, it is characterized in that: cavity (16) and rear chamber (19) before forming between the cylinder body (11) of described hydraulic ram (5) and the piston (12), oil pump (10) is communicated with preceding cavity (16) and rear chamber (19) respectively by two connection pipes, connect support II (13) and go up the sensor (20) that setting can detect drive wheel (4) steering angle, sensor (20) with can display driver the read-out (21) of wheel (4) steering angle numerical value be connected, after directional wheel (3) turned to, bearing circle (8) can be controlled drive wheel (4) and forward the position parallel with directional wheel to.
5. four-way fork lift truck structure according to claim 4, it is characterized in that: described drive element (17) comprises drive motor (22), change speed gear box (23), described drive motor (22) is connected with change speed gear box (23), and change speed gear box (23) is connected with drive wheel (4).
6. four-way fork lift truck structure according to claim 5, it is characterized in that: described hydraulic oil pump (5) also comprises electromagnetic valve (24), described electromagnetic valve (24) is installed between oil pump (10) and the connection pipe, electromagnetic valve (24) is connected with operating switch (6), described operating switch (6) is set to control electromagnetic valve (24) and opens and closes, thereby promotes the flexible structure of piston (12).
7. four-way fork lift truck structure according to claim 6, it is characterized in that: the steering locking angle degree of described directional wheel (3) when turning left is set to 90 degree, steering locking angle degree during directional wheel (3) turning clockwise is set to 90 degree, when the hydraulic oil of described oil pump (10) enters the preceding cavity (16) of hydraulic ram (5) by electromagnetic valve (24), the structure that described directional wheel (3) is set to turn left, when the hydraulic oil of oil pump (10) entered the rear chamber (19) of hydraulic ram (5) by electromagnetic valve (24), described directional wheel (3) was set to the structure of turning clockwise.
8. four-way fork lift truck structure according to claim 7 is characterized in that: described cardan wheel (2) flexible connection bottom connection support III (25) and underbody (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102115096A CN103287487A (en) | 2013-05-30 | 2013-05-30 | Four-way forklift structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102115096A CN103287487A (en) | 2013-05-30 | 2013-05-30 | Four-way forklift structure |
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| Publication Number | Publication Date |
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| CN103287487A true CN103287487A (en) | 2013-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013102115096A Pending CN103287487A (en) | 2013-05-30 | 2013-05-30 | Four-way forklift structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103660927A (en) * | 2013-12-02 | 2014-03-26 | 苏州先锋物流装备科技有限公司 | Cab drive assembly |
| CN104228997A (en) * | 2014-01-28 | 2014-12-24 | 浙江诺力机械股份有限公司 | Industrial vehicle capable of running in four directions and running mechanism of industrial vehicle |
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| JP5305085B2 (en) * | 2008-12-02 | 2013-10-02 | 株式会社ジェイテクト | Vehicle steering system |
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| JP2001261294A (en) * | 2000-03-22 | 2001-09-26 | Nippon Yusoki Co Ltd | Forklift |
| CN101348221A (en) * | 2007-07-16 | 2009-01-21 | 浙江佳力科技股份有限公司 | Omnidirectional running type forklift |
| EP2145812A2 (en) * | 2008-07-16 | 2010-01-20 | Still Gmbh | Method of controlling a steering device for an industrial truck |
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| CN103660927A (en) * | 2013-12-02 | 2014-03-26 | 苏州先锋物流装备科技有限公司 | Cab drive assembly |
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| US20160347363A1 (en) * | 2014-01-28 | 2016-12-01 | Noblelift Equipment Joint Stock Co., Ltd. | Industrial vehicle capable of driving in four directions and traveling mechanism for such industrial vehicle |
| US9963167B2 (en) * | 2014-01-28 | 2018-05-08 | Noblelift Intelligent Equipment Co., Ltd. | Industrial vehicle capable of driving in four directions and traveling mechanism for such industrial vehicle |
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Application publication date: 20130911 |