CN103448796A - Forklift steering axle - Google Patents
Forklift steering axle Download PDFInfo
- Publication number
- CN103448796A CN103448796A CN 201310360822 CN201310360822A CN103448796A CN 103448796 A CN103448796 A CN 103448796A CN 201310360822 CN201310360822 CN 201310360822 CN 201310360822 A CN201310360822 A CN 201310360822A CN 103448796 A CN103448796 A CN 103448796A
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- CN
- China
- Prior art keywords
- steering
- hydraulic
- speed reduction
- reduction gearing
- steeraxle
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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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Abstract
The invention provides a forklift steering axle, which is provided with an axle body. The vertical centerline of the axle body and the centerline of a wheel axle for installing two steering wheels are perpendicularly and crossly arranged to enable the steering wheels to rotate leftwards and rightwards within 180 degrees. The upper end of the axle body is fixedly arranged at the lower end of the rear part of a body. A driving mechanism and a speed reducing mechanism are arranged on the body. The driving mechanism is connected with a vehicle control system and drives the steering axle to rotate leftwards and rightwards or move straightly through the speed reducing mechanism. Since the centerline of the axle body of the forklift steering axle and the centerline of the steering axle for installing the steering wheels are arranged by adopting a cross layout structure and double tires are arranged, the effect that the steering wheels rotate leftwards and rightwards within 180 degrees can be realized; the steering flexibility of the steering axle is high, the resistance is small and the bearing capacity is strong; since an angle detection device is connected with the vehicle control system, the demand of accurate steering control when an electric vehicle is unmanned can be met; the forklift steering axle is suitable for small turning radius vehicles such as fuel forklifts or electric forklifts.
Description
Technical field
The invention belongs to the fork truck technical field, be specifically related to a kind of forklift steering bridge.
Background technology
Existing forklift steering bridge, steering angle is 172 ° to the maximum, and the steeraxle of this kind of structure turns to that heavy resistance is large flexibly, weight capacity is poor, when basic out of reach propons drives turning, turning center is on the vehicle front axle centre, so turn radius and turn control are just different, and turning to of existing forklift steering bridge can not accurately control, can only manual operation, can not adopt unmanned automation mechanized operation, therefore be necessary to improve.
Summary of the invention
The technical matters that the present invention solves: a kind of forklift steering bridge is provided, the line of centers of the wheel shaft of two wheel flutters of the vertical line of centers of pontic and installation is arranged vertically and is crosswise, can realize the wheel flutter 180 ° of rotations in left and right, steeraxle is provided with speed reduction gearing, adopt HM Hydraulic Motor or motor drive axle body left-right rotation or craspedodrome, pontic is provided with angle detection device simultaneously.
The technical solution used in the present invention: forklift steering bridge, there is pontic, the line of centers of described pontic line of centers and the wheel shaft that two wheel flutters are installed is arranged vertically and is crosswise and makes the wheel flutter 180 ° of rotations in left and right, the pontic upper end is fixed on the rear vehicle lower end, described car body is provided with driver train and speed reduction gearing, and described driver train is connected with vehicle control system and drives steeraxle left-right rotation or craspedodrome by speed reduction gearing.
Further, also be provided with angle detection device on described car body, described angle detection device feeds back to vehicle control system by the detection signal of pontic rotational angle, and described vehicle control system reaches closed loop according to feedback signal to the direction information correction of steeraxle and accurately controls.
Preferred version one, described driver train is motor, described vehicle control system output termination input end of motor, described motor output end connects the speed reduction gearing input end, and described speed reduction gearing drives steeraxle left-right rotation or craspedodrome.
Preferred version two, described driver train is HM Hydraulic Motor, described vehicle control system output termination hydraulic power unit input end, described hydraulic power unit output termination hydraulic control unit input end is controlled hydraulic flow direction and flow, described hydraulic control unit drives HM Hydraulic Motor and rotates, described HM Hydraulic Motor output termination speed reduction gearing input end, described speed reduction gearing drives steeraxle left-right rotation or craspedodrome.
Preferred version three, described driver train is HM Hydraulic Motor, Hydraulic Pump output termination hydraulic steering gear input end, described hydraulic steering gear output termination HM Hydraulic Motor input end, described HM Hydraulic Motor output termination speed reduction gearing input end, described speed reduction gearing drives steeraxle left-right rotation or craspedodrome, and the output torque that the mechanical differential gear box of simultaneously installing on steeraxle adapts to the steering angle of steeraxle automatic synchronization two wheel flutters automatically realizes the steering manipulation of fork truck.
The present invention compared with prior art line of centers of the vertical line of centers of pontic and the wheel shaft that two wheel flutters are installed is arranged vertically and is crosswise, can realize the wheel flutter 180 ° of rotations in left and right, this steeraxle turns to flexibly, resistance is little, weight capacity is strong, angle detection device docks with vehicle control system, in the time of can realizing the elec. vehicle driverless operation, turns to accurate demand for control, is applicable to the tight turn radius vehicle of fuel oil fork truck or electri forklift.
The accompanying drawing explanation
Fig. 1 is the first embodiment of the invention structural front view;
Fig. 2 is first embodiment of the invention structure birds-eye view;
Fig. 3 is the second embodiment of the invention structural front view;
Fig. 4 is the third embodiment of the invention structural front view;
Fig. 5 is third embodiment of the invention structure birds-eye view.
The specific embodiment
Below in conjunction with accompanying drawing 1-2, the first embodiment of the present invention is described.
Forklift steering bridge, there is pontic 1, the line of centers of described pontic 1 line of centers and the steeraxle 12 that two wheel flutters 2 are installed is arranged vertically and is crosswise and makes wheel flutter 180 ° of 2 left and right rotation, pontic 1 upper end is fixed on car body 14 front lower ends, described car body 14 is provided with driver train and speed reduction gearing 3, described driver train is connected with vehicle control system 6 and passes through speed reduction gearing 3 and drives steeraxle left-right rotation or craspedodromes, specifically, described driver train is motor 4, described vehicle control system 6 output termination motor 4 input ends, described motor 4 output termination speed reduction gearing 3 input ends, described speed reduction gearing 3 drives steeraxle 12 left-right rotation or craspedodrome.Also be provided with angle detection device 5 on described car body 14, described angle detection device 5 feeds back to vehicle control system 6 by the detection signal of steeraxle 12 rotational angles, and described vehicle control system 6 reaches closed loop according to feedback signal to the direction information correction of pontic 1 and accurately controls.
Principle of work: when the present invention adopts motor 4 to drive, by vehicle control system 6, according to program, need output motor to drive parameter, drive motor 4 runnings, angle detection device 5 arrives vehicle control system 6 by the detection signal immediate feedback of steeraxle 12 rotational angles simultaneously, vehicle control system 6 to turning to data revised, is accurately controlled requirement thereby reach closed loop according to feedback signal.
Below in conjunction with accompanying drawing 3, the second embodiment of the present invention is described.
Forklift steering bridge, there is pontic 1, the line of centers of described pontic 1 line of centers and the steeraxle 12 that two wheel flutters 2 are installed is arranged vertically and is crosswise and makes wheel flutter 180 ° of 2 left and right rotation, pontic 1 upper end is fixed on car body 14 front lower ends, described car body 14 is provided with driver train and speed reduction gearing 3, described driver train is connected with vehicle control system 6 and passes through speed reduction gearing 3 and drives steeraxle left-right rotation or craspedodromes, specifically, described driver train is HM Hydraulic Motor 7, described vehicle control system 6 output termination hydraulic power unit 8 input ends, described hydraulic power unit 8 output termination hydraulic control unit 9 input ends are controlled hydraulic flow direction and flow, described hydraulic control unit 9 drives HM Hydraulic Motor 7 and rotates, described HM Hydraulic Motor 7 output termination speed reduction gearing 3 input ends, described speed reduction gearing 3 drives steeraxle 12 left-right rotation or craspedodrome.Also be provided with angle detection device 5 on described car body 14, described angle detection device 5 feeds back to vehicle control system 6 by the detection signal of steeraxle 12 rotational angles, and described vehicle control system 6 reaches closed loop according to feedback signal to the direction information correction of pontic 1 and accurately controls.
Principle of work: when HM Hydraulic Motor 7 of the present invention drives, by vehicle control system 6, according to program, need output motor to drive parameter, drive hydraulic power unit 8 runnings, by hydraulic control unit 9, control hydraulic flow direction and flow, pressure etc., drive HM Hydraulic Motor 7 and rotate, meet and turn to requirement; By the detection signal immediate feedback of steeraxle rotational angle, to vehicle control system 6, vehicle control system 6 to turning to data revised, is accurately controlled requirement thereby reach closed loop according to feedback signal to angle detection device 5 simultaneously.
Below in conjunction with accompanying drawing 4-5, the third embodiment of the present invention is described.
Forklift steering bridge, there is pontic 1, the line of centers of described pontic 1 line of centers and the steeraxle 12 that two wheel flutters 2 are installed is arranged vertically and is crosswise and makes wheel flutter 180 ° of 2 left and right rotation, pontic 1 upper end is fixed on car body 14 front lower ends, described car body 14 is provided with driver train and speed reduction gearing 3, described driver train drives steeraxle left-right rotation or craspedodrome by speed reduction gearing 3, specifically, described driver train is HM Hydraulic Motor 7, Hydraulic Pump 10 output termination hydraulic steering gear 11 input ends, described hydraulic steering gear 11 output termination HM Hydraulic Motor 7 input ends, described HM Hydraulic Motor 7 output termination speed reduction gearing 3 input ends, described speed reduction gearing 3 drives steeraxle 12 left-right rotation or craspedodrome, the steering angle of the automatic adaptation steeraxle 12 of mechanical differential gear box 13 of simultaneously installing on drive axle 15 output torque of automatic synchronization two drive wheels 16 realize the steering manipulation of fork truck.
Principle of work: when the present invention is applicable to fuel power type fork truck, the HM Hydraulic Motor 7 of steeraxle directly, by the Hydraulic Pump 10 output hydraulic pressure power of fork truck, drives through hydraulic steering gear 11 output hydraulic pressure oil, and the steering angle of steeraxle 12 is without detection.The mechanical differential gear box 13 of the drive axle 15 of fork truck can adapt to the steering angle of steeraxle 12 output torque of automatic synchronization left and right wheels 16 automatically, realizes the steering manipulation of fork truck.Above-mentioned mechanical differential gear box 13 can be adjusted output speed and the moment of left and right sidesing driving wheel 16 automatically, thereby the whole center of gyration of fork truck that reaches the 16 speeds discrepancy formation of drive axle left and right sidesing driving wheel overlaps with steeraxle line of centers and drive axle line of centers intersection point O point, guarantee that fork truck is turned normally, nothing tows.
It should be noted that in addition, in existing fork lift truck structure, when steeraxle is used with propons with the drive axle structure of mechanical differential gear box, the rotating that can't realize left and right wheels due to mechanical differential gear box drives (can only rotate forward), so the center of gyration of this fork truck certainty outside the fork truck body scope, that is to say fork truck and can't realize pivot stud.
Above-described embodiment, be preferred embodiment of the present invention, not is used for limiting the scope of the present invention, and the equivalence of being done with the described content of the claims in the present invention therefore all changes, within all should being included in the claims in the present invention scope.
Claims (5)
1. forklift steering bridge, there is pontic (1), it is characterized in that: the line of centers of the wheel shaft (12) of the vertical line of centers of described pontic (1) and two wheel flutters of installation (2) is arranged vertically and is crosswise, make wheel flutter (2) the 180 ° of rotations in left and right, pontic (1) upper end is fixed on car body (14) lower end, rear portion, described car body (14) is provided with driver train (4) and speed reduction gearing (3), and described driver train (4) is connected with vehicle control system (6) and passes through speed reduction gearing (3) and control wheel flutter (2) left-right rotation or craspedodrome.
2. forklift steering bridge according to claim 1, it is characterized in that: also be provided with angle detection device (5) on described pontic (1), described angle detection device (5) feeds back to vehicle control system (6) by the detection signal of pontic (1) rotational angle, and described vehicle control system (6) reaches closed loop according to feedback signal to the direction information correction of steeraxle (12) and accurately controls.
3. forklift steering bridge according to claim 1 and 2, it is characterized in that: described driver train is motor (4), described vehicle control system (6) output termination motor (4) input end, described motor (4) output termination speed reduction gearing (3) input end, described speed reduction gearing (3) drives steeraxle (12) left-right rotation or craspedodrome.
4. forklift steering bridge according to claim 1 and 2, it is characterized in that: described driver train is HM Hydraulic Motor (7), described vehicle control system (6) output termination hydraulic power unit (8) input end, described hydraulic power unit (8) output termination hydraulic control unit (9) input end is controlled hydraulic flow direction and flow, described hydraulic control unit (9) drives HM Hydraulic Motor (7) and rotates, described HM Hydraulic Motor (7) output termination speed reduction gearing (3) input end, described speed reduction gearing (3) drives steeraxle (12) left-right rotation or craspedodrome.
5. forklift steering bridge according to claim 1, it is characterized in that: described driver train is HM Hydraulic Motor (7), Hydraulic Pump (10) output termination hydraulic steering gear (11) input end, described hydraulic steering gear (11) output termination HM Hydraulic Motor (7) input end, described HM Hydraulic Motor (7) output termination speed reduction gearing (3) input end, described speed reduction gearing (3) drives steeraxle (12) left-right rotation or craspedodrome, the output torque that simultaneously the upper mechanical differential gear box (13) of installing of steeraxle (12) adapts to the steering angle of steeraxle (12) automatic synchronization two wheel flutters (2) automatically realizes the steering manipulation of fork truck.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310360822 CN103448796A (en) | 2013-08-16 | 2013-08-16 | Forklift steering axle |
| CN201410047071.7A CN103754258A (en) | 2013-08-16 | 2014-02-11 | Forklift steering axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310360822 CN103448796A (en) | 2013-08-16 | 2013-08-16 | Forklift steering axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103448796A true CN103448796A (en) | 2013-12-18 |
Family
ID=49731745
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310360822 Withdrawn CN103448796A (en) | 2013-08-16 | 2013-08-16 | Forklift steering axle |
| CN201410047071.7A Pending CN103754258A (en) | 2013-08-16 | 2014-02-11 | Forklift steering axle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410047071.7A Pending CN103754258A (en) | 2013-08-16 | 2014-02-11 | Forklift steering axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103448796A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646045A (en) * | 2018-04-20 | 2018-10-12 | 华南农业大学 | A kind of forklift wheel corner measuring device and method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111497925B (en) * | 2019-01-30 | 2022-05-13 | 比亚迪股份有限公司 | Forklift steering axle and forklift |
| CN114044466A (en) * | 2021-12-14 | 2022-02-15 | 合肥搬易通科技发展有限公司 | Independent electronic steering axle and four-fulcrum counterweight type forklift |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2633703Y (en) * | 2003-07-01 | 2004-08-18 | 浙江杭叉工程机械股份有限公司 | Forklift hydraulic device for lifting and turning with one motor |
| US20050279563A1 (en) * | 2004-06-16 | 2005-12-22 | Peterson Robin A | Steerable bogie |
| ITMO20050258A1 (en) * | 2005-10-11 | 2007-04-12 | Ivan Borghi | STEERING ASSEMBLY FOR OPERATING MACHINES, PARTICULARLY FOR LIFT TRUCKS, TRACTORS, TRAILERS AND OR SIMILAR |
| CN201056231Y (en) * | 2007-05-24 | 2008-05-07 | 储吉旺 | Forklift truck steering bridge |
| CN201342939Y (en) * | 2009-01-21 | 2009-11-11 | 宁波如意股份有限公司 | Driving axle for counter balanced forklift truck |
| CN102806941B (en) * | 2012-08-02 | 2014-12-03 | 宁波海迈克动力科技有限公司 | High-precision forklift hydraulic steering system and control method thereof |
| CN203727462U (en) * | 2013-08-16 | 2014-07-23 | 杨鹏波 | Forklift steering axle |
-
2013
- 2013-08-16 CN CN 201310360822 patent/CN103448796A/en not_active Withdrawn
-
2014
- 2014-02-11 CN CN201410047071.7A patent/CN103754258A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108646045A (en) * | 2018-04-20 | 2018-10-12 | 华南农业大学 | A kind of forklift wheel corner measuring device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103754258A (en) | 2014-04-30 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20131218 |