CN101301985B - Self-steering and traction-steering steering bridge mechanism - Google Patents
Self-steering and traction-steering steering bridge mechanism Download PDFInfo
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- CN101301985B CN101301985B CN 200810017929 CN200810017929A CN101301985B CN 101301985 B CN101301985 B CN 101301985B CN 200810017929 CN200810017929 CN 200810017929 CN 200810017929 A CN200810017929 A CN 200810017929A CN 101301985 B CN101301985 B CN 101301985B
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- axle
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Abstract
The invention discloses a steering axle mechanism of automatic steering and traction steering, wherein longitudinal four-link stabilizer bar is arranged at both ends at the front of the steering driving axle, a spring damper is connected to the top, while traction middle fittings and a semi-circle connection part are connected with the rear, the traction middle fittings and the semi-circle connection part are connected through a rotation axis which is connected with the steering driving axle, the longitudinal four-link stabilizer bar is connected with the car frame, the spring damper is connected with the car frame, the rear traction middle part is connected with the draw bar through the steering axis, the semi-circle connection part is connected with a pull rod which is connected with a steering push rod, the steering push rod is connected with the steering driving axle. The invention can realize two functional modes of general fork lift truck of two-axle full trailer functional fork lift truck and two-axle full trailer and use the draw bar to draw two actions vertically or nearly horizontally for manually transition.
Description
Technical field
The invention belongs to extraordinary material handling equipment, particularly a kind of steeraxle mechanism that turns to certainly and pull round that is used for two-axle full trailer function fork truck.
Background technology
Existing fork truck has different separately characteristics with two-axle full trailer on steering mode.Fork truck generally is to carry out under lower-speed state when operation, the propons bearing load is bigger during operation, and mostly is impact load, for guaranteeing the good working effect, existing common fork truck mainly shows as back axle on steering mode be steeraxle or steering drive axle, and propons is rigid bridge or rigidity drive axle.Owing to there is not vibration insulating system, fork truck is maximum to be used for the All-terrain Forklift of military use from travelling about speed 30km/h, maximum from travelling about speed 40km/h, can't catch up with the gait of march of the 80km/h of general purpose hauling fleet.Compare with fork truck, the constructional feature of two-axle full trailer then be vehicle bridge with vehicle frame between be to link to each other by elastic elements such as steel springs, possesses the favorable damping function, propons is a steeraxle, back axle is an elastic bridge, rely on the left-right rotation of draw bar to realize turning to of two-axle full trailer, two-axle full trailer can hang over draw bar the quick airdrome maneuver in transport trolley back, can catch up with the gait of march of the 80km/h of general purpose hauling fleet, but two-axle full trailer is general only as transport agent, can't realize fork truck goods and materials loading and unloading operation function.
Two-axle full trailer function fork truck is according to the characteristics of user demand in conjunction with general fork truck and independent trailer, that is: forward travel is the fork truck state, and oppositely the draw bar traction tows and is the two-axle full trailer state.During operation, have general fork truck characteristics, under lower-speed state, carry out, require operator's steering dish to realize that the fork truck rear-axle steering drives function when pretending industry, satisfy the requirement of general fork truck carrying goods and materials; Fast during airdrome maneuver, have the two-axle full trailer characteristics, bearing circle rotates realizes the rear-axle steering disabler, changes the propons that the draw bar left-right rotation realizes two-axle full trailer into and turns to function, satisfies the requirement of two-axle full trailer highway high speed hauling.Therefore, the steering drive axle of two-axle full trailer function fork truck has fork truck steering dish and pulls round two kinds with the two-axle full trailer draw bar and turn to mode of operation from turning to, and two kinds turn to mode of operation can realize conversion rapidly, the failure-free requirement.At present, domestic and international various its constructional features of existing fork truck and steeraxle form all can not satisfy the needs of two-axle full trailer highway high speed hauling.
Summary of the invention
The object of the present invention is to provide a kind of from the steeraxle mechanism that turns to and pull round, vertical laying state by the draw bar that links to each other with bridge or near horizontally tracting state turning to certainly of realizing that the bearing circle of steering drive axle handles with draw bar is handled pulls round, can satisfy the requirement of general fork truck and two kinds of patterns of two-axle full trailer, simple in structure, easy to use.
Technical scheme of the present invention is achieved in that and comprises a steering drive axle, the two ends, front of steering drive axle are provided with vertical four connecting rod stabilizer rods, be connected with jounce bumper above the steering drive axle, the back of steering drive axle is connected with traction middleware and semicircle attaching parts, the traction middleware links to each other by first turning cylinder with the semicircle attaching parts, first turning cylinder links to each other with steering drive axle, vertical four connecting rod stabilizer rods link to each other with vehicle frame, jounce bumper links to each other with vehicle frame, the traction middleware links to each other with draw bar by second turning cylinder, the semicircle attaching parts links to each other with pull bar, pull bar links to each other with turning to push rod, turn to push rod to be connected with steering drive axle, be provided with in the steering drive axle and turn to oil cylinder, turn to oil cylinder to link to each other with all-hydraulic steering gear in the steering wheel assembly, turn to oil cylinder to link to each other with the logical valve that ends of hydraulic oil in the traction middleware again, the logical only valve front portion of hydraulic oil is provided with telescopic shaft; Second turning cylinder is provided with cam, is provided with pin in the traction middleware; Cam contacts with telescopic shaft with pin, and along with the rotation of cam, pin can enter or eject the pin hole of semicircle attaching parts front portion, and telescopic shaft can make logical logical oil of valve or the oil-break of ending of hydraulic oil.
Adopt structure of the present invention, can realize general fork truck and two kinds of functional modes of two-axle full trailer of two-axle full trailer function fork truck, utilize draw bar vertically or near two actions of horizontally tracting manually to change.During forklift workability, draw bar is in plumbness, is fixed on the traction middleware by bearing pin; During transition two-axle full trailer high speed hauling, manually put down draw bar, hang on the hauling hook at transport trolley rear portion.
Description of drawings
Fig. 1 is the position perspective view of the present invention in car load.
Fig. 2 is that the present invention is connected schematic perspective view with steering wheel assembly.
Fig. 3 is the whole perspective view of the present invention.
Fig. 4 is that traction middleware perspective view is cut at rear portion of the present invention open.
Fig. 5 is that the draw bar perspective view is cut at rear portion of the present invention open.
Fig. 6 is a structure cutaway view of the present invention.
Below in conjunction with accompanying drawing the present invention is further described in detail.
The specific embodiment
Shown in Fig. 1,2,3,4, the present invention includes a steering drive axle 5, the two ends, front of steering drive axle 5 are respectively arranged with vertical four connecting rod stabilizer rods 14, last surface distribution is provided with three jounce bumpers 15, the rear portion is connected with traction middleware 8, and traction middleware 8 is connected by turning cylinder 7 with semicircle attaching parts 20, and both sides are provided with wheel motor 4 and tire 3, wheel motor 4 is contained on the steering drive axle 5, and tire 3 is contained on the wheel motor 4; The vertical four connecting rod stabilizer rods 14 of front end link to each other with vehicle frame 1, top jounce bumper 15 links to each other with vehicle frame 1, rear portion traction middleware 8 links to each other with draw bar 2 by turning cylinder 10, rear portion semicircle attaching parts 20 links to each other with pull bar 16 by bearing pin 22, semicircle attaching parts 20 front portions have pin hole 21, pull bar 16 turns to push rod 19 to link to each other by bearing pin 26 with a side of steering drive axle 5 again, and can rotate at steering drive axle 5 rear portions moving axis 7 of semicircle attaching parts 20 rotates; Draw bar 2 is captiveed joint with turning cylinder 10, usually be in vertical position, draw bar 2 can rotate around traction middleware 8 by turning cylinder 10, is fixed on the traction middleware 8 by bearing pin 9 under the fork truck state, and traction middleware 8 moving axis 7 that can rotate at steering drive axle 5 rear portions rotates; Be provided with in the steering drive axle 5 and turn to oil cylinder 18, turn to oil cylinder 18 to link to each other with steering drive axle 5 again, promote tire 3 and rotate by turning to push rod 19; Turn to oil cylinder 18 to link to each other with all-hydraulic steering gear in the steering wheel assembly 6 by hydralic hose 12, steering wheel assembly 6 is provided with bearing circle 13.
Shown in Fig. 4,5,6, turn to oil cylinder 18 to link to each other with the logical valve 23 that ends of hydraulic oil in being arranged on traction middleware 8 by hydralic hose 11, logical only valve 23 front portions of hydraulic oil are provided with telescopic shaft 25; Turning cylinder 10 is provided with cam 17, is provided with pin 24 in the traction middleware 8; Cam 17 contacts with telescopic shaft 25 with pin 24, and along with the rotation of cam 17, pin 24 can enter or eject the pin hole 21 of semicircle attaching parts 20 front portions, and telescopic shaft 25 can make logical valve 23 logical oil or the oil-breaks that end of hydraulic oil.
As follows from the steeraxle working process of mechanism that turns to and pull round:
Steeraxle mechanism is from the fork truck state that turns to.Draw bar 2 is in vertical position, be fixed on the traction middleware 8 by bearing pin 9, the position of cam 17 makes the pin 24 of contact and telescopic shaft 25 all be in relaxation state, pin 24 is in the traction middleware 8, do not enter in the pin hole 21 of semicircle attaching parts 20 front portions, telescopic shaft 25 is in the logical oil-break position of ending valve 23 of hydraulic oil; Bearing circle 13 on the rotation direction disc assembly 6, hydraulic oil flows into by sebific duct 12 and turns in the oil cylinder 18, turn to oil cylinder 18 to rotate by turning to push rod 19 to promote tire 3, in tire 3 rotation processes, pulling is rotated with the pull bar 16, the semicircle attaching partss 20 that turn to push rod 19 the to link to each other moving axis 7 that rotates, and at this moment traction middleware 8 and draw bar 2 all remain static.
The two-axle full trailer state that steeraxle mechanism pulls round.The fork truck state keeps the tire of steering drive axle to be in meta, and bearing pin 9 is taken off in manual operation, and the moving axis 10 that rotates puts down draw bar 2, and the height that extended position makes draw bar 2 can hang over transport trolley rear portion hauling hook is as the criterion; Put down in the process of draw bar 2, cam 17 rotates with turning cylinder 10, the position of cam 17 makes the pin 24 of contact and telescopic shaft 25 all be in strained condition, although pin 24 also is in the traction middleware 8, but entered in the pin hole 21 of semicircle attaching parts 20 front portions, traction middleware 8 and semicircle attaching parts 20 are connected as a single entity; Telescopic shaft 25 is in the logical logical oil level that ends valve 23 of hydraulic oil to be put, and will turn to oil cylinder 18 two ends inlet and outlet of fuel channel to be communicated with, and turns to oil cylinder 18 to be in quick condition, and at this moment steering wheel rotation 13 again is in idling conditions, to turning to oil cylinder 18 not effect; When draw bar 2 turns to about transport trolley with traction, draw bar about 2 pulling traction middlewares 8 moving axis 7 left-right rotation that rotate, semicircle attaching parts 20 is with middleware 8 moving axis 7 left-right rotation that rotate, semicircle attaching parts 20 is by pull bar 16 and rotating push-rod 19 pullings or promote tire 3 left-right rotation of steering drive axle 5 both sides, realizes that the two-axle full trailer draw bar pulls round.
Claims (1)
1. the steeraxle mechanism that turns to certainly and pull round, comprise a steering drive axle (5), it is characterized in that, the two ends, front of steering drive axle (5) are provided with vertical four connecting rod stabilizer rods (14), be connected with jounce bumper (15) above the steering drive axle (5), the back of steering drive axle (5) is connected with traction middleware (8) and semicircle attaching parts (20), traction middleware (8) links to each other by first turning cylinder (7) with semicircle attaching parts (20), first turning cylinder (7) links to each other with steering drive axle (5), vertical four connecting rod stabilizer rods (14) link to each other with vehicle frame (1), jounce bumper (15) links to each other with vehicle frame (1), traction middleware (8) links to each other with draw bar (2) by second turning cylinder (10), semicircle attaching parts (20) links to each other with pull bar (16), pull bar (16) links to each other with turning to push rod (19), turn to push rod (19) to be connected with steering drive axle (5), be provided with in the steering drive axle (5) and turn to oil cylinder (18), turn to the interior all-hydraulic steering gear of oil cylinder (18) and steering wheel assembly (6) to link to each other, turn to the logical only valve (23) of interior with drawing middleware (8) the again hydraulic oil of oil cylinder (18) to link to each other, logical only valve (23) front portion of hydraulic oil is provided with telescopic shaft (25); Second turning cylinder (10) is provided with cam (17), is provided with pin (24) in the traction middleware (8); Cam (17) contacts with telescopic shaft (25) with pin (24), rotation along with cam (17), pin (24) can enter or eject the anterior pin hole (21) of semicircle attaching parts (20), and telescopic shaft (25) can make logical logical oil of valve (23) or the oil-break of ending of hydraulic oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810017929 CN101301985B (en) | 2008-04-11 | 2008-04-11 | Self-steering and traction-steering steering bridge mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810017929 CN101301985B (en) | 2008-04-11 | 2008-04-11 | Self-steering and traction-steering steering bridge mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101301985A CN101301985A (en) | 2008-11-12 |
| CN101301985B true CN101301985B (en) | 2011-04-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810017929 Expired - Fee Related CN101301985B (en) | 2008-04-11 | 2008-04-11 | Self-steering and traction-steering steering bridge mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101301985B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102069847A (en) * | 2010-12-31 | 2011-05-25 | 东莞市永强汽车制造有限公司 | Servo steering mechanism of back shaft of trailer |
| CN102515061A (en) * | 2011-12-19 | 2012-06-27 | 苏州先锋物流装备科技有限公司 | Damping piling car |
| GB2531778B (en) * | 2014-10-30 | 2017-02-15 | Combilift | Pedestrian truck steering |
| CN104528597B (en) * | 2014-12-17 | 2017-06-16 | 盐城市锐金磨料磨具有限公司 | A kind of steering axle for forklift device |
| CN107337155A (en) * | 2017-07-13 | 2017-11-10 | 河南麻省新能石化实业有限公司 | Micro-type automated fork truck and application process |
| CN107697853A (en) * | 2017-09-19 | 2018-02-16 | 芜湖金智王机械设备有限公司 | Forklift steering system |
| CN109910532A (en) * | 2019-03-06 | 2019-06-21 | 湖南双达机电有限责任公司 | The traction mechanism and autonomous traveling vehicle of autonomous traveling vehicle |
| CN110465827B (en) * | 2019-08-26 | 2021-01-29 | 安徽钟南人防工程防护设备有限公司 | Electric vertical and horizontal dual-purpose tractor convenient to adjust and overturn |
| CN110937550A (en) * | 2019-12-10 | 2020-03-31 | 湖南图南机械科技有限公司 | Forklift truck |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738459A (en) * | 1984-08-09 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle with four-wheel steering device |
| CN2294893Y (en) * | 1997-03-14 | 1998-10-21 | 四川都江机械厂 | Front steering-axle device of light automobile |
| WO2005002948A1 (en) * | 2003-07-01 | 2005-01-13 | Tcm Corporation | Industrial vehicle |
| CN2681928Y (en) * | 2003-12-19 | 2005-03-02 | 衡阳奔胜叉车实业有限公司 | Forklift steering axle |
| CN201195553Y (en) * | 2008-04-11 | 2009-02-18 | 中国人民解放军总后勤部建筑工程研究所 | Steering axle mechanism with self-steering and traction-steering |
-
2008
- 2008-04-11 CN CN 200810017929 patent/CN101301985B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4738459A (en) * | 1984-08-09 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Vehicle with four-wheel steering device |
| CN2294893Y (en) * | 1997-03-14 | 1998-10-21 | 四川都江机械厂 | Front steering-axle device of light automobile |
| WO2005002948A1 (en) * | 2003-07-01 | 2005-01-13 | Tcm Corporation | Industrial vehicle |
| CN2681928Y (en) * | 2003-12-19 | 2005-03-02 | 衡阳奔胜叉车实业有限公司 | Forklift steering axle |
| CN201195553Y (en) * | 2008-04-11 | 2009-02-18 | 中国人民解放军总后勤部建筑工程研究所 | Steering axle mechanism with self-steering and traction-steering |
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| Publication number | Publication date |
|---|---|
| CN101301985A (en) | 2008-11-12 |
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Granted publication date: 20110420 Termination date: 20140411 |