CN201553071U - Lifting and balancing device and front top dump truck employing same - Google Patents

Lifting and balancing device and front top dump truck employing same Download PDF

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Publication number
CN201553071U
CN201553071U CN2009202738594U CN200920273859U CN201553071U CN 201553071 U CN201553071 U CN 201553071U CN 2009202738594 U CN2009202738594 U CN 2009202738594U CN 200920273859 U CN200920273859 U CN 200920273859U CN 201553071 U CN201553071 U CN 201553071U
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CN
China
Prior art keywords
balancing
lifting
railway carriage
cylinder
hinged
Prior art date
Application number
CN2009202738594U
Other languages
Chinese (zh)
Inventor
朱爱平
韩月琴
郭海刚
Original Assignee
中集车辆(集团)有限公司
驻马店中集华骏车辆有限公司
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Application filed by 中集车辆(集团)有限公司, 驻马店中集华骏车辆有限公司 filed Critical 中集车辆(集团)有限公司
Priority to CN2009202738594U priority Critical patent/CN201553071U/en
Application granted granted Critical
Publication of CN201553071U publication Critical patent/CN201553071U/en

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Abstract

The utility model provides a lifting and balancing device and a front top dump truck. The lifting and balancing device is used for being connected between the auxiliary frame and the vehicle box of the dump truck. A lifting oil cylinder is arranged between the front end part of the vehicle box and the auxiliary frame and communicated with an oil feed line. The lifting and balancing device adopts at least one balancing oil cylinder, the end part of the cylinder body of the balancing oil cylinder can be rotatablely mounted on the auxiliary frame, the top end of the plunger of the balancing oil cylinder is hinged at the bottom part of the vehicle box, and the hinge point is positioned in the position one third to two thirds of the front end part of the vehicle box. The oil feed line of the balancing oil cylinder is communicated with that of the lifting oil cylinder, so as to ensure the synchronous action of the balancing oil cylinder and the lifting oil cylinder. The lifting and balancing device provided by the utility model not only can improve the safety and stationarity during the lifting process of the dump truck, but also have no influences on the movement of the dump truck at any time. Therefore, the dump truck equipped with the lifting and balancing device can advance while unloading, the wheels are prevented from being buried by materials during unloading processes, and the dump truck is enabled to be started easily after being unloaded.

Description

Lifting balancing device and the sinciput dumping car of this lifting balancing device is installed
Technical field
The utility model relates to a kind of lifting balancing device and a kind of sinciput dumping car that this kind lifting balancing device is installed.
Background technology
Along with the fast development of Chinese national economy, the increasing of dynamics and the construction of heavy construction are built in the various places infrastructure investment, and to various dumping cars, especially the demand of sinciput dumping car increases day by day.Length requirement to the dumping car casing is also more and more longer simultaneously, becomes main flow more than 8 meters.The structure of sinciput dumping car comprises several parts such as operator's compartment, driving engine, chassis, subframe and suspension and railway carriage.The rearward end of carriage bottom plate is hinged on the subframe rearward end.Between the leading section of railway carriage and the subframe elevating ram is installed, the plunger of elevating ram is hinged on the longitudinal centerline of railway carriage front end-plate.Elevating ram is used to drive railway carriage to dump the goods in it.In order to prevent that dumping car from the rollover accident taking place, and generally all is equipped with the lifting balancing device on the sinciput dumping car in dumping the goods process.The long sinciput dumping car of length is in lifting, and the center of gravity of vehicle is very high, and the unloading environment is poor, and railway carriage is easily turned on one's side in the lifting process, and the lifting danger of vehicle has also correspondingly increased.Therefore the lifting stability that increases the long sinciput dumping car of length becomes the new problem of special-use vehicle design study.
The trammel beam technology of the four-bar linkage structure that present dumping car generally uses, since little in powerful local function situation lower support ability, can't satisfy the balance requirement of vehicle, be not suitable for the long sinciput dumping car of length.Cause safety misadventure owing to rollover easily takes place for the raising of center of gravity for fear of dumping car in the lifting process, people have worked out multiple scheme.For example, U.S. Patent application US6616243 discloses a kind of supporting leg that is used for stablizing dumping car, supporting leg is directly installed on the suspension of vehicle, can between two trailing wheels of vehicle, stretch out and kiss the earth laterally, be provided with the sole part to increase the effective support area at supporting leg and contact position, ground.This structure, supporting leg stretches out between two wheels, and the distance between the trailing wheel of vehicle is had certain requirement, thereby defines applicable vehicle scope.Chinese patent application CN200520091221.0 discloses a kind of bracing or strutting arrangement, and structure comprises by the horizontal and/or vertical flexible support arm assembly of HYDRAULIC CONTROL SYSTEM, is installed in the rear portion of dumping car.Must there be the driving of horizontal and vertical both direction in this structure, and support arm is contacted with ground, perhaps could built on stilts and shrink and put in place.Though above-mentioned two patented technologies can effectively solve the stationarity of long case dumping car in the lifting process, but dumping car can't move under the lifting state at any time, cause goods to bury wheel easily, cause vehicle unloading back starting difficulty, so above-mentioned two patented technologies are not used widely.
The utility model content
The utility model will solve existing sinciput dumping car and can't move at any time at the body lifting state, causes dumping car unloading back starting difficult technologies problem.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
Lifting balancing device of the present utility model is used to be connected between the subframe and railway carriage of dumping car.The rearward end of wherein said railway carriage is hinged on described subframe rearward end, between the leading section of described railway carriage and described subframe elevating ram is installed, and this elevating ram is communicated with oil feed line.Wherein said lifting balancing device is at least one balancing cylinder, the cylinder ends of this balancing cylinder is installed in rotation on the described subframe, the top of the plunger of this balancing cylinder is hinged on described railway carriage bottom, and hinge-point is apart from position between this railway carriage leading section 1/3-2/3.The oil feed line of described balancing cylinder is communicated with the oil feed line of described elevating ram, to guarantee balancing cylinder and described elevating ram synchronization action.
The piston rod of described balancing cylinder is hinged on described railway carriage bottom, and hinge-point is apart from this railway carriage leading section 1/2 place.
The quantity of described balancing cylinder is one, and the top of the plunger of balancing cylinder is hinged on the longitudinal centerline of described railway carriage.
The quantity of described balancing cylinder is two, and the top symmetry of two plungers of two balancing cylinders is hinged on the longitudinal centerline both sides of described carriage bottom plate.
The top of described two plungers is hinged on the outermost of described carriage bottom plate.
Sinciput dumping car of the present utility model is comprising lifting balancing device described in the utility model.
As shown from the above technical solution, lifting balancing device of the present utility model and advantage and good effect that the dumping car of this lifting balancing device is installed are: lifting balancing device of the present utility model comprises at least one balancing cylinder, and is relatively simple for structure; Flexible and when dumping goods at elevating ram, balancing cylinder plays the effect of supplemental support, turns on one's side so can effectively prevent the body lifting process, makes the lifting process of railway carriage safer, more steady, and can improve the whole in-use performance of dumping car, help prolonging the service life of car load.In the dumping car of the present utility model, because the lifting balancing device is installed between railway carriage and the subframe, do not influence moving at any time of dumping car, therefore, but dumping car moves forward while unloading, so effectively avoided material in the unloading process to bury the situation of wheel, can easily start to walk after making the dumping car unloading.
Description of drawings
Structural representation when Fig. 1 is a sinciput dumping car cruising of the present utility model, lifting balancing device wherein is in contraction state;
Structural representation when Fig. 2 is sinciput dumping car of the present utility model unloading, lifting balancing device wherein is in the state of stretching out.
Wherein description of reference numerals is as follows: 1. subframe; 2. railway carriage; 3. balancing cylinder; 31. cylinder body; 32. plunger; 5. elevating ram.
The specific embodiment
As depicted in figs. 1 and 2, sinciput dumping car of the present utility model comprises several parts compositions such as operator's compartment, driving engine, chassis, subframe 1 and suspension and railway carriage 2.The rearward end of railway carriage 2 is hinged on the rearward end of subframe 1.Between the front end-plate of railway carriage 2 and the subframe 1 elevating ram 5 is installed, the plunger of elevating ram 5 is hinged on longitudinal center's line position of subframe, and the cylinder body of elevating ram 5 is hinged on longitudinal center's line position of railway carriage front end-plate.Elevating ram 5 is communicated with oil feed line, and elevating ram 5 is used to drive railway carriage 2 to dump the goods in it.In order to prevent from dumping the goods process to take place the rollover accident, between the subframe 1 of dumping car and railway carriage 2, the lifting balancing device is installed.
Lifting balancing device of the present utility model is one or a pair of or more to balancing cylinder 3.
When lifting balancing device of the present utility model is a balancing cylinder 3, cylinder body 31 ends of balancing cylinder 3 are installed in rotation on the longitudinal centerline of subframe 1, the top of plunger 32 is hinged on the longitudinal centerline of railway carriage 2 base plates, and be positioned at apart from this railway carriage 2 leading sections 1/2 place, certainly be not limited to this ad-hoc location apart from railway carriage 2 leading sections 1/2 place, any position between distance railway carriage 2 leading section 1/3-2/3 all is feasible.Balancing cylinder 3 is communicated with oil feed line, and this oil feed line is communicated with the oil feed line of elevating ram 5, to guarantee balancing cylinder 3 and elevating ram 5 synchronization actions.
When lifting balancing device of the present utility model is two balancing cylinders 3.Two cylinder body 31 ends of two balancing cylinders 3 are installed in rotation on respectively on the subframe 1, and the longitudinal centerline symmetry of relative subframe 1; The top of two plungers 32 of two balancing cylinders 3 is hinged on respectively on railway carriage 2 base plates, and with respect to the longitudinal centerline symmetry of railway carriage 2 base plates, preferably, the top of two plungers 32 is hinged on the outermost of described railway carriage 2 base plates, promptly the distance between two of two plungers 32 hinge-points equals the width of railway carriage 2 base plates, helps like this increasing supporting stationarity.Simultaneously, each plunger 32 is positioned at apart from this railway carriage 2 leading sections 1/2 place with the hinge-point of railway carriage 2 base plates, is not limited to certainly apart from railway carriage 2 leading sections 1/2 this ad-hoc location, and any position between distance railway carriage 2 leading section 1/3-2/3 all is feasible.Each balancing cylinder 3 is communicated with an oil feed line, and two oil feed lines are communicated with the oil feed line of elevating ram 5 by a T-pipe joint.When railway carriage during by lifting, hydraulic oil enters in two balancing cylinders 3 by T-pipe joint, the plunger of controlling two balancing cylinders 3 and elevating ram 5 stretches out simultaneously, when railway carriage descends, the fuel tank of dumping car hydraulic efficiency pressure system is returned on the former road of hydraulic oil, and the plunger of two balancing cylinders 3 and elevating ram 5 is withdrawn simultaneously.
Balancing cylinder 3 in the utility model, can stretch out at the plunger of elevating ram 5 and dump in the goods process, play the effect of supplemental support, so can effectively prevent to turn on one's side in the body lifting process, make the lifting unloading process of railway carriage safer, more steady, and help improving the whole in-use performance of dumping car, prolong the service life of car load.Simultaneously, because balancing cylinder 3 is installed between railway carriage 2 and subframe 1, not influencing dumping car moves in the unloading process, therefore, the dumping car that this practical lifting balancing device is installed can be unloaded while moving forward, effectively avoided material to bury the situation of wheel, so can easily start to walk after the dumping car of the present utility model unloading.
Though described the utility model with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from utility model because the utility model can specifically be implemented in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.

Claims (6)

1. lifting balancing device, be used to be connected between the subframe (1) and railway carriage (2) of dumping car, the rearward end of wherein said railway carriage (2) is hinged on described subframe (1) rearward end, between the leading section of described railway carriage (2) and described subframe (1) elevating ram (5) is installed, this elevating ram (5) is communicated with oil feed line; It is characterized in that, described lifting balancing device is at least one balancing cylinder (3), cylinder body (31) end of this balancing cylinder (3) is installed in rotation on the described subframe (1), the top of the plunger (32) of this balancing cylinder (3) is hinged on described railway carriage (2) bottom, and hinge-point is apart from position between this railway carriage (2) leading section 1/3-2/3; The oil feed line of described balancing cylinder (3) is communicated with the oil feed line of described elevating ram (5), to guarantee balancing cylinder (3) and described elevating ram (5) synchronization action.
2. lifting balancing device according to claim 1 is characterized in that, the piston rod (32) of described balancing cylinder (3) is hinged on described railway carriage (2) bottom, and hinge-point is apart from this railway carriage (2) leading section 1/2 place.
3. lifting balancing device according to claim 1 and 2 is characterized in that, the quantity of described balancing cylinder (3) is one, and the top of the plunger (32) of balancing cylinder (3) is hinged on the longitudinal centerline of described railway carriage (2).
4. lifting balancing device according to claim 1 and 2 is characterized in that, the quantity of described balancing cylinder (3) is two, and the top symmetry of two plungers (32) of two balancing cylinders (3) is hinged on the longitudinal centerline both sides of described railway carriage (2) base plate.
5. lifting balancing device according to claim 4 is characterized in that, the top of described two plungers (32) is hinged on the outermost of described railway carriage (2) base plate.
6. a sinciput dumping car is characterized in that, comprises each the described lifting balancing device as claim 1-4.
CN2009202738594U 2009-12-01 2009-12-01 Lifting and balancing device and front top dump truck employing same CN201553071U (en)

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Application Number Priority Date Filing Date Title
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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555877A (en) * 2012-03-08 2012-07-11 柳州双吉机械有限公司 Lifting device of dump truck
CN104553930A (en) * 2013-10-24 2015-04-29 邓修海 Novel tipping bucket lorry
CN105172864A (en) * 2015-07-20 2015-12-23 安徽省无为煤矿机械制造有限公司 Coal conveying cart
CN105882487A (en) * 2014-10-16 2016-08-24 李鸿德 Multifunctional elongated goods self-discharging semitrailer
CN106314245A (en) * 2015-06-16 2017-01-11 陕西重型汽车有限公司 Auxiliary lifting system of dump truck
CN108032781A (en) * 2017-12-12 2018-05-15 曹诗晴 A kind of cargo box of engineering vehicle lifts easing gear
CN108583415A (en) * 2018-04-27 2018-09-28 阮晓萍 A kind of slag-soil truck automatic turning mechanism
CN104553929B (en) * 2013-10-16 2018-11-20 北汽福田汽车股份有限公司 Twin-tub lifting device and vehicle
CN109835239A (en) * 2017-11-28 2019-06-04 李亚娟 The dump truck of buildup can actively be removed

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102555877A (en) * 2012-03-08 2012-07-11 柳州双吉机械有限公司 Lifting device of dump truck
CN104553929B (en) * 2013-10-16 2018-11-20 北汽福田汽车股份有限公司 Twin-tub lifting device and vehicle
CN104553930A (en) * 2013-10-24 2015-04-29 邓修海 Novel tipping bucket lorry
CN105882487A (en) * 2014-10-16 2016-08-24 李鸿德 Multifunctional elongated goods self-discharging semitrailer
CN106314245A (en) * 2015-06-16 2017-01-11 陕西重型汽车有限公司 Auxiliary lifting system of dump truck
CN105172864A (en) * 2015-07-20 2015-12-23 安徽省无为煤矿机械制造有限公司 Coal conveying cart
CN109835239A (en) * 2017-11-28 2019-06-04 李亚娟 The dump truck of buildup can actively be removed
CN108032781A (en) * 2017-12-12 2018-05-15 曹诗晴 A kind of cargo box of engineering vehicle lifts easing gear
CN108583415A (en) * 2018-04-27 2018-09-28 阮晓萍 A kind of slag-soil truck automatic turning mechanism

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100818

Termination date: 20161201

CF01 Termination of patent right due to non-payment of annual fee