CN101734281A - Mechanical-hydraulic-pneumatic triple steering axle locking device - Google Patents
Mechanical-hydraulic-pneumatic triple steering axle locking device Download PDFInfo
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- CN101734281A CN101734281A CN200910254628A CN200910254628A CN101734281A CN 101734281 A CN101734281 A CN 101734281A CN 200910254628 A CN200910254628 A CN 200910254628A CN 200910254628 A CN200910254628 A CN 200910254628A CN 101734281 A CN101734281 A CN 101734281A
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Abstract
The invention discloses a mechanical-hydraulic-pneumatic triple steering axle locking device. The device comprises a steering axle, wherein the two sides of the lower end of the steering axle are provided with a left mounting plate and a right mounting plate respectively; the upper part of the front end of the left mounting plate is connected with an upper positioning plate; the upper end of the upper positioning plate is connected with a locking oil cylinder; a locking pin shaft is arranged in the locking oil cylinder; the upper end of the locking oil cylinder is provided with a mechanical switch valve; the lower part of the back end of the left mounting plate is connected with a left adjoint cylinder, in which a left adjoint pin shaft is arranged; the lower part of the back end of the right mounting plate is connected with a right adjoint cylinder, in which a right adjoint pin shaft is arranged; and the lower part of the front end of the right mounting plate is provided with a mechanical reversing valve. The device not only can meet the operation characteristic of interchange between two-wheel steering and four-wheel steering of a low-speed engineering machine, but also can meet high-speed safe running function of an automobile, which steers by two wheels of a front axle and uses a back axle as a straight axle.
Description
Technical field
The invention belongs to extraordinary material handling equipment, particularly a kind of mechanical-hydraulic-pneumatic triple steering axle locking device that is used for high-speed telescopic arm forklift truck.
Background technology
The maximum characteristics of construction machinery and equipment are that moving velocity is low, operation frequency height, the chassis bearing load is bigger during operation, and mostly be impact load, therefore require propulsive effort, tractive force big, the operation maneuverability, has minimum turn radius, be used for the construction machinery and equipment under the field condition, generally all have two-wheeled or four-wheel steering function, the design-calculated purpose is exactly in order to satisfy the operation maneuverability, to have the characteristic of minimum turning radius like this, can be according to the operating mode needs, turn to or the four-wheel steering mode is carried out operation with two-wheeled; The maximum characteristics of automobile are moving velocity height, consider only possess the propons two-wheeled and turn to function from aspects such as safety, drive efficiencys, back axle is straight bridge, do not turn to function, the design-calculated purpose is for handling stability and the ride comfort of running at high speed like this, is convenient to fast motorway operation.
Existing common telescopic arm forklift truck belongs to the construction machinery and equipment category, and steering mode has two-wheeled and turns to and the four-wheel steering dual mode, according to the difference of operation operating mode, can drive in-house operation, finishes two-wheeled and turns to exchange with the four-wheel steering function; When using usually is the four-wheel steering mode, when being converted to the two-wheeled steering mode, at first need to make the back steeraxle to be in the meta state, just can finish the locking action then, make back axle become straight bridge by steeraxle, lose and turn to function, the technological approaches that adopts generally turns to the oil cylinder oil-break with the both sides of back steeraxle exactly, make and turn to oil cylinder to lose action, thereby finish the process that steeraxle converts straight bridge to, belong to hydraulic pressure oil-break locking mode, have only about 30km/h from the speed of travelling, be used for the All-terrain telescopic arm forklift truck of open-air purposes because common telescopic arm forklift truck is maximum, maximum from travelling about speed 40km/h, moving velocity is low, does not have potential safety hazard, and the straight bridge mode of steeraxle hydraulic pressure oil-break locking is feasible.But high-speed telescopic arm forklift truck maximum travelling speed 80km/h, entered automotive field, steeraxle converts straight bridge to and takes hydraulic pressure oil-break locking mode, in case turn to the oil cylinder oil pipe break, hydraulic pressure oil-break locking will be ineffective, back steeraxle can't be locked into straight bridge again, and this will cause very big potential safety hazard for the high-speed telescopic arm forklift truck in the process of running at high speed.
Summary of the invention
Steeraxle is converted to the mechanical-hydraulic-pneumatic triple steering axle locking device that straight bridge also can exchange after the object of the present invention is to provide a kind of high-speed telescopic arm forklift truck, both can satisfy low speed construction machinery and equipment two-wheeled and turn to the job behavior that exchanges with four-wheel steering, can satisfy the automobile front axle two-wheeled again turns to, back axle is the high-speed secure driving functions of straight bridge, for the construction machinery and equipment high speed provides the robust techniques guarantee, it is long on a large scale apart from fast reserve transition job requirements that high-speed telescopic arm forklift truck can be adapted to, and improves the operating efficiency under particular job environment.
Technical scheme of the present invention is achieved in that and the present invention includes a steeraxle, both sides, steeraxle lower end are respectively arranged with adapter plate, left side adapter plate upper front end is connected with locating plate, last locating plate upper end links to each other with the locking oil gas cylinder, be provided with the locking bearing pin in the locking oil gas cylinder, locking oil gas cylinder upper end is provided with the mechanical switch valve, and left side adapter plate rear end lower is connected with the left adjoint cylinder, is provided with the left adjoint bearing pin in the left adjoint cylinder; Right side adapter plate rear end lower is connected with the right adjoint cylinder, is provided with the right adjoint bearing pin in the right adjoint cylinder, and adapter plate front end bottom, right side is provided with the mechanical commutation valve; The front portion, steeraxle lower end and two outsides are provided with tie rod linkage near the tire place, the left and right interior left and right bearing pin of following of cylinder of following contacts with tie rod linkage respectively, the tie rod linkage front end is provided with down locating plate, following locating plate centre is provided with porose, normally inserts in the time of can satisfying the stop pin shaft alignment; Right side, steeraxle lower end is provided with and turns to oil cylinder, turn to oil cylinder one end to link to each other with tie rod linkage, the other end links to each other with steeraxle, the steeraxle lower end is provided with back axle flexible mechanical connecting rod mechanism, back axle flexible mechanical connecting rod mechanism one end links to each other with the mechanical commutation valve by steeraxle, and the other end links to each other with the anterior deflector of car load.
Adopt structure of the present invention and technical scheme, can realize that low speed construction machinery and equipment normal operation condition two-wheeled, four-wheel steering exchange requirement, satisfying the high speed construction machinery and equipment simultaneously, to enter steeraxle locking behind the automotive field be straight bridge and the security technique requirement that can exchange; When the low speed construction machinery and equipment used, the front and back bridge can form that two-wheeled turns to or two kinds of patterns of four-wheel steering, and operation comfort is good, can realize minimum turn radius in the operating area; When the satisfied quick transition of automotive use required, propons was a steeraxle, and back axle can be exchanged into straight bridge, by machinery, hydraulic pressure, the triple lock functions of air pressure, satisfies the galloping security requirement.Owing to considered interconversion relation and safety factor between construction machinery and equipment and the motor turning mode, adopt structure of the present invention and technology path, the maximum speed of travelling behind the low speed construction machinery and equipment high speed can reach 80km/h.
Description of drawings
Fig. 1 is the position perspective view of the present invention in car load.
Fig. 2 is a plan structure scheme drawing of the present invention.
Fig. 3 is a side direction perspective view of the present invention.
Fig. 4 is an elevated bottom perspective structural representation of the present invention.
Fig. 5 is principle of the invention figure.
Below in conjunction with accompanying drawing the present invention is further described in detail.
The specific embodiment
With reference to shown in Figure 1, the present invention includes a steeraxle 6, both sides, steeraxle 6 lower end are respectively arranged with left adapter plate 9, right adapter plate 7, left side adapter plate 9 upper front end are connected with locating plate 10, last locating plate 10 upper ends link to each other with locking oil gas cylinder 11, locking oil gas cylinder 11 upper ends are provided with mechanical switch valve 5, steeraxle 6 lower ends are provided with back axle flexible mechanical connecting rod mechanism 4, back axle flexible mechanical connecting rod mechanism 4 front ends link to each other with car load deflector 2, car load deflector 2 upper ends are provided with bearing circle 3, and the rear end links to each other with propons tie rod linkage 1.
Shown in Fig. 2,3,4, left side adapter plate 9 rear end lower are provided with left adjoint cylinder 17, be provided with left adjoint bearing pin 14 in the left adjoint cylinder 17, right adapter plate 7 rear end lower are connected with right adjoint cylinder 18, be provided with right adjoint bearing pin 12 in the right adjoint cylinder 18, right adapter plate 7 front end bottoms are provided with mechanical commutation valve 19; Be provided with locking bearing pin 15 in the locking oil gas cylinder 11 that last locating plate 10 links to each other; The front portion, steeraxle 6 lower ends and two outsides are provided with tie rod linkage 13 near the tire place, the bearing pin 12 of following in bearing pin 14, the right adjoint cylinder 18 of following in the left adjoint cylinder 17 contacts with tie rod linkage 13 respectively, tie rod linkage 13 front ends are provided with down locating plate 16, following locating plate 16 centres are provided with porose, normally insert in the time of can satisfying locking bearing pin 15 location; Right side, steeraxle 6 lower end is provided with and turns to oil cylinder 8, turns to oil cylinder 8 one ends to link to each other with tie rod linkage 13, and the other end links to each other with steeraxle 6; Back axle flexible mechanical connecting rod mechanism 4 rear ends link to each other with mechanical commutation valve 19 by steeraxle 6.
With reference to shown in Figure 5, bearing circle 3 links to each other with car load deflector 2, car load deflector 2 links to each other with propons tie rod linkage 1, and car load deflector 2 links to each other with mechanical commutation valve 19 by back axle flexible mechanical connecting rod mechanism 4, and mechanical commutation valve 19 links to each other with turning to oil cylinder 8 by hydralic hose; Working barrel 20 1 ends link to each other with hydraulic reservoir 21 by hydralic hose, and the other end links to each other with upper end oil pocket in car load deflector 2, mechanical commutation valve 19, mechanical switch valve 5, the locking oil gas cylinder 11 by hydralic hose; Locking oil gas cylinder 11 is fixed on the locating plate 10, and the top is provided with mechanical switch valve 5, and inside is provided with locking bearing pin 15, and locking bearing pin 15 lower ends contact with travel switch 24, can pass down locating plate 16 by knock hole; Driving engine 22 links to each other with air receiver 23 by tracheae, air receiver 23 links to each other with electromagnetic valve of gas circuit 25 by tracheae, electromagnetic valve of gas circuit 25 links to each other with left adjoint cylinder 17, right adjoint cylinder 18, links to each other with lower end air cavity in the locking oil gas cylinder 11 by tracheae, be provided with in the left adjoint cylinder 17 in left adjoint bearing pin 14, the right adjoint cylinder 18 right adjoint bearing pin 12 is set, left adjoint bearing pin 14, right adjoint bearing pin 12 contact with tie rod linkage 13 respectively.
Low speed construction machinery and equipment four-wheel steering and high-speed car two-wheeled turn to exchange operation element process as follows:
The operation of low speed construction machinery and equipment four-wheel steering:
Start the engine 22, driving in-house operation four-wheel steering switch, travel switch 24 outages, at this moment electromagnetic valve of gas circuit 25 positions are with shown in Figure 5 opposite, air receiver 23 is by electromagnetic valve 25 air cavity inflation in lower end in locking oil gas cylinder 11, to lock bearing pin 15 upwards mentions and pulls out down locating plate 16, jack-up mechanical switch valve 5 simultaneously, disconnect hydraulic circuit, tie rod linkage 13 lost efficacy by the mechanical position limitation of locking bearing pin 15, air receiver 23 makes left adjoint cylinder 17 by electromagnetic valve 25,18 venting of right adjoint cylinder, left adjoint bearing pin 14, right adjoint bearing pin 12 does not have gas pressure, has only spring self contact force; The oil that working barrel 20 pumps is by mechanical commutation valve 19 oil sump tanks 21, steering wheel rotation 3, by 4 pullings of back axle flexible mechanical connecting rod mechanism or promotion mechanical commutation valve 19, the oil that working barrel 20 pumps can only be by turning to oil cylinder 8 oil sump tanks, tie rod linkage 13 works, back axle 6 begins to turn to, thereby realizes the requirement of low speed construction machinery and equipment four-wheel steering.
In back axle 6 steering procedures, left adjoint bearing pin 14, right adjoint bearing pin 12 contact with tie rod linkage 13 under the effect of spring force all the time.
High-speed car two-wheeled steering operation:
Start the engine 22, first maneuver vehicle makes back steeraxle 6 be in meta in operator's compartment, and then operation two-wheeled pole changer, travel switch 24 energisings, at this moment electromagnetic valve of gas circuit 25 positions are same as shown in Figure 5, air receiver 23 makes air cavity venting in lower end in the locking oil gas cylinder 11 by electromagnetic valve 25, locking bearing pin 15 is at self gravitation, under locking oil gas cylinder 11 upper end pipeline hydraulic fluid pressures and the spring force effect, prepare in the hole of locating plate 16 under the insertion downwards, when having deviation, the position in operator's compartment, handles back steeraxle 6 again, make locking bearing pin 15 can accurately insert down in the hole of locating plate 16, the mechanical switch valve 5 of leaving behind simultaneously, connect hydraulic circuit, tie rod linkage 13 works by the mechanical position limitation of locking bearing pin 15, air receiver 23 passes through electromagnetic valve 25 to left adjoint cylinder 17,18 inflations of right adjoint cylinder, left adjoint bearing pin 14, right adjoint bearing pin 12 tightly withstands on the contact surface of tie rod linkage 13 under gas pressure; The oil that working barrel 20 pumps is by mechanical switch valve 5 direct oil sump tanks 21, at this moment steering wheel rotation 3 again, by 4 pullings of back axle flexible mechanical connecting rod mechanism or promotion mechanical commutation valve 19, to turning to oil cylinder 8 all not have effect, back axle 6 turns to disabler, thereby realizes that the high-speed car two-wheeled turns to requirement.
Turn in the disabler process at back axle 6, because the mechanical position limitation of 15 pairs of tie rod linkages 13 of locking bearing pin, in the spacing hole of locking bearing pin 15 by locating plate 16 under the hydraulic pressure insertion, the bearing pin of left adjoint simultaneously 14, right adjoint bearing pin 12 tightly withstand on the contact surface of tie rod linkage 13 under gas pressure, therefore form machinery, hydraulic pressure, pneumatic triple steering axle lockup state, guarantee back steeraxle 6 positive locks in the high vehicle speeds process, satisfied security requirement.
Claims (2)
1. mechanical-hydraulic-pneumatic triple steering axle locking device, comprise a steeraxle (6), steeraxle (6) both sides, lower end are respectively arranged with left adapter plate (9), right adapter plate (7), it is characterized in that, left side adapter plate (9) upper front end is connected with locating plate (10), last locating plate (10) upper end links to each other with locking oil gas cylinder (11), be provided with locking bearing pin (15) in the locking oil gas cylinder (11), locking oil gas cylinder (11) upper end is provided with mechanical switch valve (5), left side adapter plate (9) rear end lower is connected with left adjoint cylinder (17), is provided with left adjoint bearing pin (14) in the left adjoint cylinder (17); Right adapter plate (7) rear end lower is connected with right adjoint cylinder (18), is provided with right adjoint bearing pin (12) in the right adjoint cylinder (18), and right adapter plate (7) front end bottom is provided with mechanical commutation valve (19).
2. mechanical-hydraulic-pneumatic triple steering axle locking device according to claim 1, it is characterized in that, the front portion, steeraxle (6) lower end and two outsides are provided with tie rod linkage (13) near the tire place, left adjoint bearing pin (14) in the left adjoint cylinder (17), right adjoint bearing pin (12) in the right adjoint cylinder (18) contacts with tie rod linkage (13) respectively, tie rod linkage (13) front end is provided with down locating plate (16), be provided with porose in the middle of the following locating plate (16), steeraxle (6) right side, lower end is provided with and turns to oil cylinder (8), turn to oil cylinder (8) one ends to link to each other with tie rod linkage (13), the other end links to each other with steeraxle (6), steeraxle (6) lower end is provided with back axle flexible mechanical connecting rod mechanism (4), back axle flexible mechanical connecting rod mechanism (4) one ends link to each other with mechanical commutation valve (19) by steeraxle (6), and the other end links to each other with the anterior deflector of car load (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910254628 CN101734281B (en) | 2009-12-31 | 2009-12-31 | Mechanical-hydraulic-pneumatic triple steering axle locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910254628 CN101734281B (en) | 2009-12-31 | 2009-12-31 | Mechanical-hydraulic-pneumatic triple steering axle locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101734281A true CN101734281A (en) | 2010-06-16 |
| CN101734281B CN101734281B (en) | 2011-10-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910254628 Expired - Fee Related CN101734281B (en) | 2009-12-31 | 2009-12-31 | Mechanical-hydraulic-pneumatic triple steering axle locking device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372024A (en) * | 2010-08-05 | 2012-03-14 | 徐州重型机械有限公司 | Engineering machine and steering system thereof |
| CN102514620A (en) * | 2011-11-24 | 2012-06-27 | 华南农业大学 | Tractor identical-track steering mechanism and steering method thereof |
| CN102550220A (en) * | 2011-10-12 | 2012-07-11 | 石河子贵航农机装备有限责任公司 | Front-rear axle balance adjusting mechanism for locomotive |
| CN102874309A (en) * | 2012-09-24 | 2013-01-16 | 三一重工股份有限公司 | Crane as well as steering system and rocker arm thereof |
| CN106985908A (en) * | 2017-03-24 | 2017-07-28 | 吉林大学 | The full-automatic parking apparatus and method of a kind of electric wheel truck |
| CN113548131A (en) * | 2021-07-29 | 2021-10-26 | 中国人民解放军国防科技大学 | Three-axis unmanned vehicle and comprehensive vehicle control system and obstacle crossing method thereof |
| CN113879060A (en) * | 2021-07-29 | 2022-01-04 | 中国人民解放军国防科技大学 | Three-axis unmanned combat platform, vehicle control system thereof and trench crossing method |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1120442A (en) * | 1997-07-08 | 1999-01-26 | Toyota Autom Loom Works Ltd | Oscillation controller for industrial vehicle |
| CN100339294C (en) * | 2005-12-20 | 2007-09-26 | 中国人民解放军总后勤部建筑工程研究所 | Highway high speed hauling fork car |
| CN201280414Y (en) * | 2008-10-15 | 2009-07-29 | 上海太腾机械设备有限公司 | Forklift with extension arm |
| CN201334343Y (en) * | 2008-12-30 | 2009-10-28 | 上海太腾机械设备有限公司 | Self-leveling device for attachment of telescopic boom forklift truck |
| CN201580432U (en) * | 2009-12-31 | 2010-09-15 | 中国人民解放军总后勤部建筑工程研究所 | Mechanical, hydraulic and pneumatic linkage steering axle locking device |
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2009
- 2009-12-31 CN CN 200910254628 patent/CN101734281B/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102372024A (en) * | 2010-08-05 | 2012-03-14 | 徐州重型机械有限公司 | Engineering machine and steering system thereof |
| CN102550220A (en) * | 2011-10-12 | 2012-07-11 | 石河子贵航农机装备有限责任公司 | Front-rear axle balance adjusting mechanism for locomotive |
| CN102550220B (en) * | 2011-10-12 | 2013-08-28 | 石河子贵航农机装备有限责任公司 | Front-rear axle balance adjusting mechanism for locomotive |
| CN102514620A (en) * | 2011-11-24 | 2012-06-27 | 华南农业大学 | Tractor identical-track steering mechanism and steering method thereof |
| CN102874309A (en) * | 2012-09-24 | 2013-01-16 | 三一重工股份有限公司 | Crane as well as steering system and rocker arm thereof |
| CN102874309B (en) * | 2012-09-24 | 2015-09-02 | 三一重工股份有限公司 | Hoisting crane and steering swivel system thereof and rocking arm |
| CN106985908A (en) * | 2017-03-24 | 2017-07-28 | 吉林大学 | The full-automatic parking apparatus and method of a kind of electric wheel truck |
| CN106985908B (en) * | 2017-03-24 | 2019-01-08 | 吉林大学 | A kind of full-automatic parking apparatus and method of electric wheel truck |
| CN113548131A (en) * | 2021-07-29 | 2021-10-26 | 中国人民解放军国防科技大学 | Three-axis unmanned vehicle and comprehensive vehicle control system and obstacle crossing method thereof |
| CN113879060A (en) * | 2021-07-29 | 2022-01-04 | 中国人民解放军国防科技大学 | Three-axis unmanned combat platform, vehicle control system thereof and trench crossing method |
| CN113879060B (en) * | 2021-07-29 | 2023-03-14 | 中国人民解放军国防科技大学 | Three-axis unmanned operation platform, vehicle control system thereof and trench crossing method |
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| Publication number | Publication date |
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| CN101734281B (en) | 2011-10-05 |
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Granted publication date: 20111005 Termination date: 20131231 |