CN105459977B - A kind of engineering vehicle's supporting legs mechanism and engineering truck - Google Patents

A kind of engineering vehicle's supporting legs mechanism and engineering truck Download PDF

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Publication number
CN105459977B
CN105459977B CN201510922623.9A CN201510922623A CN105459977B CN 105459977 B CN105459977 B CN 105459977B CN 201510922623 A CN201510922623 A CN 201510922623A CN 105459977 B CN105459977 B CN 105459977B
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China
Prior art keywords
connecting seat
vehicle
leg
vehicle frame
leg brackets
Prior art date
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CN201510922623.9A
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Chinese (zh)
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CN105459977A (en
Inventor
魏玉宏
牛满钝
郭艳丽
李媛媛
杨孝怀
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Xuzhou XCMG Truck Mounted Crane Co Ltd
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Xuzhou XCMG Truck Mounted Crane Co Ltd
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Priority to CN201510922623.9A priority Critical patent/CN105459977B/en
Publication of CN105459977A publication Critical patent/CN105459977A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S9/00Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
    • B60S9/22Means for attaching lifting, supporting, or manoeuvring devices to vehicles

Abstract

The invention discloses a kind of engineering vehicle's supporting legs mechanism and engineering truck, including luffing vehicle frame (1), vehicle frame platform (2), leg brackets (3) and small connecting seat (6), leg brackets connect connecting rod (5) by big connecting seat (4), and the other end of connecting rod is articulated with small connecting seat;The both ends of leg brackets are separately installed with leg brackets bottom roller (31) and leg brackets upper roller (33), and big connecting seat roller (41) is provided with big connecting seat;Vehicle frame platform is provided with platform riser (21), and small connecting seat roller (61) is provided with small connecting seat.This invention removes potential safety hazard, effectively protects supporting leg, improves whole vehicle stability;The angle that adjust automatically contacts with ground can be achieved, meet the needs of various working conditions;Improve vehicle passes through performance;It is compact-sized, easy to operate, significantly improve the operating efficiency of vehicle.

Description

A kind of engineering vehicle's supporting legs mechanism and engineering truck
Technical field
The present invention relates to a kind of support leg mechanism, specifically a kind of engineering vehicle's supporting legs mechanism, and apply the supporting leg machine The engineering truck of structure.
Background technology
In the prior art, many engineering trucks (such as:Wrecker) support leg device is provided with, in engineering Stability support is provided during vehicle operation, prevents that working load is excessive and causes nose to tumble.
By taking wrecker as an example, this obstacles removing car is a kind of special-purpose vehicle of removing obstacles for possessing and holding in the palm and leading with piggy-back dual-use function , rear support leg in the course of the work, there is vital effect as its critical piece.On the one hand, the performance of supporting leg is direct Influence platform piggy-back operation;On the other hand, supporting leg is even more stability when removing obstacles operation, one of protective barrier of security.
At present, most of engineering trucks are compact-sized using fixed supporting leg structure both at home and abroad, occupy little space, but Phenomenon can not be adjusted by occurring in the course of the work, and leg disc is larger to ground failure, big to vehicle shock loading, and supporting leg from Ground is nearer, reduces the vehicle road clearance, reduces passing through property of vehicle.
The content of the invention
In view of the above-mentioned problems of the prior art, the present invention provides a kind of engineering vehicle's supporting legs mechanism, can effectively overcome The shortcomings of the prior art, effectively protects road surface, protects support leg mechanism, and security and stability is stronger;And liftoff of support leg mechanism Gap is big, and significantly improve vehicle passes through performance.
To achieve these goals, this engineering vehicle's supporting legs mechanism includes the luffing vehicle frame being articulated with fixed vehicle frame, in institute The vehicle frame platform of sliding extension on luffing vehicle frame is stated, the leg brackets and small connecting seat being articulated with the luffing vehicle frame are described Leg brackets are connected with one end of connecting rod by be hinged big connecting seat, and the other end of the connecting rod is articulated with the small connecting seat On;
The both ends of the leg brackets are separately installed with leg brackets bottom roller and leg brackets upper roller, the big connection Big connecting seat roller is installed on seat;
The vehicle frame platform is provided with platform riser, be provided with the small connecting seat contacted with the platform riser it is small Connecting seat roller.
Further, the quality of the big connecting seat 4 is more than small connecting seat 6.
Further, the pin joint between the leg brackets 3 and big connecting seat 4 is provided with leg brackets support plate 32.
Further, extension spring 8 is installed between the leg brackets 3 and big connecting seat 4.
Meanwhile present invention also offers a kind of engineering truck for applying the engineering vehicle's supporting legs mechanism.
Compared with prior art, this engineering vehicle's supporting legs mechanism has the advantages that:
1) this support leg mechanism eliminates the potential safety hazard that fixed supporting leg can not be adjusted and brought, and is effectively protected supporting leg machine Structure, the generation of accident is avoided, improve the stability of vehicle;
2) this support leg mechanism use linkage movable supporting legs when being contacted with ground steadily without impact, it is possible to achieve from The angle that dynamic adjustment contacts with ground, meets the needs of various working conditions, and adaptability is stronger;
3) the linkage movable supporting legs that this support leg mechanism uses can be to maximize with ground clearance when withdrawing, and increase is whole Car departure angle, significantly improve vehicle passes through performance;
4) existing fixed supporting leg, to reduce the destruction to ground, needs onboard chock to be spread when being supported Pad, cumbersome, labor intensity is big, efficiency of removing obstacles is low, using the engineering truck of this support leg mechanism without chock, contacted with ground by Sliding friction is improved as rolling friction, the stressing conditions of support leg mechanism is significantly improved, compact-sized, easy to operate, more Add hommization so that be significantly improved using the operating efficiency of the engineering truck of this support leg mechanism.
Equally, present invention simultaneously provides a kind of engineering truck for applying the engineering vehicle's supporting legs mechanism also have and above-mentioned have Beneficial effect.
Brief description of the drawings
Fig. 1 is support leg mechanism retracted state schematic diagram in the present invention;
Fig. 2 is support leg mechanism holding state schematic diagram in the present invention;
In figure:1st, luffing vehicle frame, 2, vehicle frame platform, 21, platform riser, 3, leg brackets, 31, leg brackets bottom roller, 32nd, leg brackets support plate, 33, leg brackets upper roller, 4, big connecting seat, 41, big connecting seat roller, 5, connecting rod, 6, small connection Seat, 61, small connecting seat roller, 7, fixed vehicle frame, 8, extension spring;
Marginal data:ω is luffing vehicle frame rotational angular velocity, and ν is scaling platform sliding speed, and α, which is that luffing vehicle frame is maximum, to be become Argument degree, A-F are each part pin joint.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, this engineering vehicle's supporting legs mechanism includes the luffing vehicle frame 1 being articulated with fixed vehicle frame 7, in institute The vehicle frame platform 2 of sliding extension on luffing vehicle frame 1 is stated, the leg brackets 3 and small connecting seat 6 being articulated with the luffing vehicle frame 1, The leg brackets 3 are connected with one end of connecting rod 5 by be hinged big connecting seat 4, and the other end of the connecting rod 5 is articulated with described On small connecting seat 6;
The both ends of the leg brackets 3 are separately installed with leg brackets bottom roller 31 and leg brackets upper roller 33, described Big connecting seat roller 41 is installed on big connecting seat 4;In whole motion process, leg brackets upper roller 33 can be along vehicle frame The longeron of platform 2 rolls.
The vehicle frame platform 2 is provided with platform riser 21, is provided with the small connecting seat 6 and is connect with the platform riser 21 Tactile small connecting seat roller 61.
Further, the quality of the big connecting seat 4 is more than small connecting seat 6.Can be in small connecting seat roller 61 and platform riser , can be under gravity during 21 separation so that big connecting seat roller 41 rotates around point C, is formed with leg brackets bottom roller 31 Supporting leg contacts with ground.
Further, the pin joint between the leg brackets 3 and big connecting seat 4 is provided with leg brackets support plate 32, supporting leg branch Frame support plate 32 can contact with the longeron of luffing vehicle frame 1, prevent what leg brackets bottom roller 31 was formed with big connecting seat roller 41 Supporting leg slides backward.
Further, extension spring 8 is installed between the leg brackets 3 and big connecting seat 4.Bounced back in vehicle frame platform 2 Platform riser 21 continues to bounce back after contacting with small connecting seat roller 61, and can stir small connecting seat roller 61 will be whole by connecting rod 5 Movable supporting legs are promoted to original state, and extension spring 8 being capable of power or counteracting shock loading caused by active balance recovery supporting leg.
The present embodiment also includes a kind of engineering truck for applying the engineering vehicle's supporting legs mechanism simultaneously.
The operation principle of the present invention is as follows:
When engineering truck reaches operating position, oil sources is provided by hydraulic pump first, drives vehicle frame to put down by telescopic oil cylinder Platform 2 first protrudes horizontally up a segment distance to platform riser 21 and the small connecting seat roller 61 on small connecting seat 6 according to desired trajectory and divided From, then with luffing 1 synchronous amplitude of vehicle frame while, continue to stretch out, change angle is 0~α.In amplitude changing process, leg brackets 3 Rotated with luffing vehicle frame 1 around point A;Meanwhile under gravity, leg brackets 3 can rotate around hinge B;Because small connecting seat rolls Wheel 61 has separated with platform riser 21, and the big mass of connecting seat 4 is more than small connecting seat 6, therefore under gravity, big connecting seat Roller 41 can be turned to around point C and contacted with ground, while driven and moved therewith by the small connecting seat 6 that connecting rod 5 is connected around hinge F To away from the bottom of platform riser 21.
As shown in Fig. 2 when the luffing of luffing vehicle frame 1 is to maximum angle α, the support of leg brackets bottom roller 31 lands, supporting leg Support upper roller 33 and the longeron contact on vehicle frame platform 2.Leg brackets bottom roller 31, leg brackets upper roller 33 with it is big Connecting seat roller 41 forms 3 points of stable supports, ensures that luffing vehicle frame 1 is in maximum luffing state.At the same time, leg brackets Support plate 32 contacts with the longeron of luffing vehicle frame 1, prevents supporting leg from sliding backward.During supporting leg branch ground, if fixed supporting leg, by Can not be adjusted in leg disc can produce larger impulsive force, and movable supporting legs stress performance is very bad so during support, together When it is big to vehicle shock loading, directly affect whole vehicle stability, security incident can be caused when serious, after generation slide to road ground Destructiveness it is also big;The leg brackets bottom roller 31 and leg brackets support plate 32 that linkage movable supporting legs of the present invention are furnished with were both Supporting leg and the stressing conditions on ground can be improved, slided after supporting leg can be prevented again, whole process is steady, to vehicle without impact, ensure that The stability and security of vehicle.
When reclaiming movable supporting legs, oil sources is provided by hydraulic pump first, drives vehicle frame platform 2 to retract by telescopic oil cylinder Realize that turning to luffing vehicle frame 1 steadily drops down onto on chassis around point A to luffing vehicle frame 1, while with luffing vehicle frame 1, now platform Riser 21 contacts with small connecting seat roller 61, when platform bounces back, stirs small connecting seat roller 61 and lifts whole movable supporting legs To original state, to balance this power or offsetting shock loading, extension spring is installed between big connecting seat 4 and leg brackets 3 8。
In summary, this engineering vehicle's supporting legs mechanism and engineering truck can effectively overcome the shortcomings of the prior art, effectively Protection road surface, protection support leg mechanism, security and stability are stronger;And the support leg mechanism road clearance is big, passing through for vehicle is significantly improved Performance.

Claims (5)

  1. A kind of 1. engineering vehicle's supporting legs mechanism, it is characterised in that
    Including the luffing vehicle frame (1) being articulated with fixed vehicle frame (7), put down in the vehicle frame of sliding extension on the luffing vehicle frame (1) Platform (2), the leg brackets (3) and small connecting seat (6) being articulated with the luffing vehicle frame (1), the leg brackets (3) pass through hinge The big connecting seat (4) connect is connected with one end of connecting rod (5), and the other end of the connecting rod (5) is articulated with the small connecting seat (6) On;
    The both ends of the leg brackets (3) are separately installed with leg brackets bottom roller (31) and leg brackets upper roller (33), institute State and big connecting seat roller (41) is installed on big connecting seat (4);
    The vehicle frame platform (2) is provided with platform riser (21), is provided with and the platform riser on the small connecting seat (6) (21) the small connecting seat roller (61) of contact.
  2. A kind of 2. engineering vehicle's supporting legs mechanism according to claim 1, it is characterised in that
    The quality of the big connecting seat (4) is more than small connecting seat (6).
  3. A kind of 3. engineering vehicle's supporting legs mechanism according to claim 1, it is characterised in that
    Pin joint between the leg brackets (3) and big connecting seat (4) is provided with leg brackets support plate (32).
  4. A kind of 4. engineering vehicle's supporting legs mechanism according to claim 1, it is characterised in that
    Extension spring (8) is installed between the leg brackets (3) and big connecting seat (4).
  5. A kind of 5. engineering truck, it is characterised in that
    Including the engineering vehicle's supporting legs mechanism described in Claims 1-4 any one.
CN201510922623.9A 2015-12-14 2015-12-14 A kind of engineering vehicle's supporting legs mechanism and engineering truck Active CN105459977B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510922623.9A CN105459977B (en) 2015-12-14 2015-12-14 A kind of engineering vehicle's supporting legs mechanism and engineering truck

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Application Number Priority Date Filing Date Title
CN201510922623.9A CN105459977B (en) 2015-12-14 2015-12-14 A kind of engineering vehicle's supporting legs mechanism and engineering truck

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CN105459977A CN105459977A (en) 2016-04-06
CN105459977B true CN105459977B (en) 2017-11-21

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844348A (en) * 1955-11-08 1958-07-22 Thomas H Jordan Adjustable support
FR2389521A1 (en) * 1977-05-06 1978-12-01 Bregoli Carlo Support for use when changing tractor wheel - consists of telescopic leg with adjustable top bracket engageable on lift arm or front axle
CN201433062Y (en) * 2009-06-15 2010-03-31 徐州徐工随车起重机有限公司 Retractable swing supporting leg
CN101966845A (en) * 2010-07-05 2011-02-09 湖南恒润高科有限公司 Four-foot supporting device for highway guardrail breakdown van
CN203568687U (en) * 2013-11-20 2014-04-30 中联重科股份有限公司 Crane and support leg plate
CN203998739U (en) * 2014-05-29 2014-12-10 江苏大通重工有限公司 The movable supporting legs of the cocked trailer of Mini-tower hoist tool
CN205344852U (en) * 2015-12-14 2016-06-29 徐州徐工随车起重机有限公司 Machineshop car landing leg mechanism and machineshop car

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844348A (en) * 1955-11-08 1958-07-22 Thomas H Jordan Adjustable support
FR2389521A1 (en) * 1977-05-06 1978-12-01 Bregoli Carlo Support for use when changing tractor wheel - consists of telescopic leg with adjustable top bracket engageable on lift arm or front axle
CN201433062Y (en) * 2009-06-15 2010-03-31 徐州徐工随车起重机有限公司 Retractable swing supporting leg
CN101966845A (en) * 2010-07-05 2011-02-09 湖南恒润高科有限公司 Four-foot supporting device for highway guardrail breakdown van
CN203568687U (en) * 2013-11-20 2014-04-30 中联重科股份有限公司 Crane and support leg plate
CN203998739U (en) * 2014-05-29 2014-12-10 江苏大通重工有限公司 The movable supporting legs of the cocked trailer of Mini-tower hoist tool
CN205344852U (en) * 2015-12-14 2016-06-29 徐州徐工随车起重机有限公司 Machineshop car landing leg mechanism and machineshop car

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