CN103754258A - Forklift steering axle - Google Patents
Forklift steering axle Download PDFInfo
- Publication number
- CN103754258A CN103754258A CN201410047071.7A CN201410047071A CN103754258A CN 103754258 A CN103754258 A CN 103754258A CN 201410047071 A CN201410047071 A CN 201410047071A CN 103754258 A CN103754258 A CN 103754258A
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- CN
- China
- Prior art keywords
- steering
- hydraulic
- speed reduction
- reduction gearing
- forklift
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- Forklifts And Lifting Vehicles (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
Abstract
The invention provides a forklift steering axle. The forklift steering axle is provided with an axle body, wherein the vertical center line of the axle body is perpendicular to the center line of a wheel shaft provided with two steering wheels to form a cross, so that the steering wheels rotate leftwards and rightwards by 180 degrees respectively, the upper end of the axle body is fixed to the lower end of the rear portion of a forklift body, the forklift body is provided with a driving mechanism and a speed reduction mechanism, and the driving mechanism is connected with a vehicle control system and controls the steering wheels to rotate leftwards and rightwards or go straight. The vertical center line of the axle body and the center line of the wheel shaft provided with the steering wheels adopt a cross-shaped layout structure and a double-tire arrangement mode, the steering wheels can rotate by 180 degrees leftwards and rightwards, the forklift steering axle is flexible in steering, small in resistance and high in load bearing capacity, an angle detection device is connected with the vehicle control system in an abutting mode, and the forklift steering axle can meet the requirement for accurate control over steering when an electric vehicle is unmanned, and is suitable for vehicles with a small turning radius, such as oil-fired forklifts or electric forklifts.
Description
Technical field
The invention belongs to 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 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 vertical line of centers of pontic is arranged vertically and is crosswise with the line of centers that the wheel shaft of two wheel flutters is installed, 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 vertical line of centers of described pontic and the line of centers that the wheel shaft of two wheel flutters is installed are arranged vertically and are crosswise and make the wheel flutter 180 ° of rotations in left and right, pontic upper end is fixed on 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 controls wheel flutter left-right rotation or craspedodrome by speed reduction gearing.
Further, on described pontic, be also provided with angle detection device, described angle detection device feeds back to vehicle control system by the detection signal of wheel shaft rotational angle, and described vehicle control system reaches closed loop according to feedback signal to the steering angle correction of wheel flutter 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 speed reduction gearing input end, and described speed reduction gearing drives wheel flutter 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 to rotate, described HM Hydraulic Motor output termination speed reduction gearing input end, described speed reduction gearing drives wheel flutter 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 wheel flutter left-right rotation or craspedodrome, and the mechanical differential gear box of simultaneously installing on drive axle adapts to the steering manipulation that the steering angle of drive wheel the output torque of automatic synchronization two drive wheels realize fork truck automatically.
The present invention compared with prior art vertical line of centers of pontic is arranged vertically and is crosswise with the line of centers that the wheel shaft of two wheel flutters is installed, can realize the wheel flutter 180 ° of rotations in left and right, it is flexible that this takes turns axle steer, resistance is little, weight capacity is strong, angle detection device docks with vehicle control system, in the time of can realizing 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.
Accompanying drawing explanation
Fig. 1 is first embodiment of the invention structural front view;
Fig. 2 is first embodiment of the invention structure birds-eye view;
Fig. 3 is second embodiment of the invention structural front view;
Fig. 4 is 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, described pontic 1 line of centers and the line of centers that the wheel shaft 12 of two wheel flutters 2 is installed are arranged vertically and are crosswise and make 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 wheel flutter 2 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 wheel flutter 2 left-right rotation or craspedodrome.On described pontic 1, be also provided with angle detection device 5, described angle detection device 5 feeds back to vehicle control system 6 by the detection signal of wheel shaft 12 rotational angles, and described vehicle control system 6 reaches closed loop according to feedback signal to the steering angle correction of wheel flutter 2 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 wheel flutter 2 rotational angles simultaneously, vehicle control system 6 is revised the steering angle of wheel flutter 2 according to feedback signal, thereby reach closed loop, accurately controls requirement.
Below in conjunction with accompanying drawing 3, the second embodiment of the present invention is described.
Forklift steering bridge, there is pontic 1, the vertical line of centers of described pontic 1 and the line of centers that the wheel shaft 12 of two wheel flutters 2 is installed are arranged vertically and are crosswise and make 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 wheel flutter 2 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 to rotate, described HM Hydraulic Motor 7 output termination speed reduction gearing 3 input ends, described speed reduction gearing 3 drives wheel flutter 2 left-right rotation or craspedodrome.On described pontic 1, be also provided with angle detection device 5, described angle detection device 5 feeds back to vehicle control system 6 by the detection signal of wheel shaft 12 rotational angles, and described vehicle control system 6 reaches closed loop according to feedback signal to the steering angle correction of wheel flutter 2 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 to rotate, meet and turn to requirement; Angle detection device 5 is by the detection signal immediate feedback of wheel shaft 12 rotational angles to vehicle control system 6 simultaneously, and vehicle control system 6 is revised the steering angle of wheel flutter 2 according to feedback signal, thereby reach closed loop, accurately controls requirement.
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 vertical line of centers of described pontic 1 and the line of centers that the wheel shaft 12 of two wheel flutters 2 is installed are arranged vertically and are crosswise and make 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 wheel flutter 2 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 wheel flutter 2 left-right rotation or craspedodrome, the mechanical differential gear box 13 of simultaneously installing on drive axle 15 adapts to the steering manipulation that the steering angle of drive wheel 16 output torque of automatic synchronization two drive wheels 16 realize fork truck automatically.
Principle of work: when the present invention is applicable to fuel power type fork truck, HM Hydraulic Motor 7 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 wheel shaft 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 drive wheel 16 output torque of automatic synchronization drive wheel 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 left and right sidesing driving wheel 16 speeds discrepancy formation of drive axle overlaps with wheel shaft 12 line of centerss and drive axle 15 line of centers intersection point O points, 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 cannot 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 fork truck body scope, that is to say fork truck and cannot realize pivot stud.
Above-described embodiment, is preferred embodiment of the present invention, is not used for limiting the scope of the present invention, and the equivalence of being done with content described in 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: described pontic (1) vertically line of centers and the line of centers that the wheel shaft (12) of two wheel flutters (2) is installed is arranged vertically and is crosswise and makes 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: on described pontic (1), be also provided with angle detection device (5), described angle detection device (5) feeds back to vehicle control system (6) by the detection signal of wheel shaft (12) rotational angle, and described vehicle control system (6) reaches closed loop according to feedback signal to the steering angle correction of wheel flutter (2) 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 wheel flutter (2) 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) to rotate, described HM Hydraulic Motor (7) output termination speed reduction gearing (3) input end, described speed reduction gearing (3) drives wheel flutter (2) 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 wheel flutter (2) left-right rotation or craspedodrome, simultaneously the upper mechanical differential gear box (13) of installing of drive axle (15) adapts to the steering manipulation that the steering angle of drive wheel (16) the output torque of automatic synchronization two drive wheels (16) realize fork truck automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410047071.7A CN103754258A (en) | 2013-08-16 | 2014-02-11 | Forklift steering axle |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310360822.6 | 2013-08-16 | ||
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103754258A true CN103754258A (en) | 2014-04-30 |
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 Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201310360822 Withdrawn CN103448796A (en) | 2013-08-16 | 2013-08-16 | Forklift steering axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103448796A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156080A1 (en) * | 2019-01-30 | 2020-08-06 | 比亚迪股份有限公司 | Forklift steering axle and forklift |
| 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 |
Families Citing this family (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 |
Citations (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 |
| CN1948041A (en) * | 2005-10-11 | 2007-04-18 | 伊万·博尔吉 | Steering assembly for work vehicles, particularly lift trucks, tractors, trailers and/or the like |
| 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 |
| CN102806941A (en) * | 2012-08-02 | 2012-12-05 | 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
Patent Citations (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 |
| CN1948041A (en) * | 2005-10-11 | 2007-04-18 | 伊万·博尔吉 | Steering assembly for work vehicles, particularly lift trucks, tractors, trailers and/or the like |
| 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 |
| CN102806941A (en) * | 2012-08-02 | 2012-12-05 | 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020156080A1 (en) * | 2019-01-30 | 2020-08-06 | 比亚迪股份有限公司 | Forklift steering axle and forklift |
| CN111497925A (en) * | 2019-01-30 | 2020-08-07 | 比亚迪股份有限公司 | Forklift steering axle and forklift |
| CN111497925B (en) * | 2019-01-30 | 2022-05-13 | 比亚迪股份有限公司 | Forklift steering axle and forklift |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103448796A (en) | 2013-12-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140430 |