CN103318278A - Forward-extending platform capable of adjusting distance to cab ceiling automatically - Google Patents
Forward-extending platform capable of adjusting distance to cab ceiling automatically Download PDFInfo
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- CN103318278A CN103318278A CN2013102494105A CN201310249410A CN103318278A CN 103318278 A CN103318278 A CN 103318278A CN 2013102494105 A CN2013102494105 A CN 2013102494105A CN 201310249410 A CN201310249410 A CN 201310249410A CN 103318278 A CN103318278 A CN 103318278A
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- hydraulic
- front flattening
- jacking system
- flattening platform
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Abstract
A forward-extending platform capable of adjusting the distance to a cab ceiling automatically comprises a motor tractor, a chassis, a vehicle body and a hydraulic station. The motor tractor is hinged to the chassis, the vehicle body is fixedly connected with the chassis, and two hollow columns are fixedly connected with two sides of the front end of the vehicle body symmetrically. The forward-extending platform is characterized by further comprising a distance remote sensor, a lifting execution unit, the forward-extending platform, a lifting control unit and a protection pull rod. The distance remote sensor is fixedly connected on the cab ceiling, and two ends of the lifting execution unit are fixedly connected with two sides of the front end of the vehicle body. When the forward-extending platform does not work, the forward-extending platform is vertically arranged at the front end of the vehicle body and hinged to the bottom of a sliding block of the lifting execution unit. During work, the forward-extending platform is turned and unfolded to reach the horizontal position and arranged above a cab. The output end of the lifting control unit is fixedly connected with the lifting execution unit and the forward-extending platform, the input end of the lifting control unit is electrically connected with the distance remote sensor, one end of the protection pull rod is hinged to the forward-extending platform, and the other end of the protection pull rod is hinged to the sliding block.
Description
Technical field
The present invention relates to half-trailer for vehicle transport.It is a kind of front flattening platform with the cab ceiling distance can automatically regulated for half-trailer for vehicle transport.
Background technology
At present domestic half-trailer for vehicle transport all is that back wall at operator's compartment designs later on the loading manned vehicle.One of them reason is the rotation of existing horizontal direction between tractor truck and the superimposed trailer, also have longitudinally and relatively rotate, especially ferry up and down or up and down during the abrupt slope relative motion larger, as when running into the gradient and surpassing 8 ° the limiting conditions such as abrupt slope, very likely enough cause danger, Another reason is that the front flattening platform of prior art is fixed on the compartment, the distance of front flattening platform and operator's compartment ceiling is fixed value H, if it is less that the H value is reserved, operator's compartment and front flattening platform easily produce collision when automobile is climbed, if it is larger that the H value is reserved, although the phenomenon that when climbing, can not bump, automobile superelevation when level line travels.
Summary of the invention
Technical matters to be solved by this invention is: overcome the shortcoming of prior art, thereby provide a kind of distance that can automatically regulate cab ceiling and front flattening interstation to load the front flattening platform with the cab ceiling distance can automatically regulated of a manned vehicle at front flattening platform.
The scheme of technical solution problem of the present invention is: a kind of front flattening platform that can automatically regulate with the cab ceiling distance; it comprises tractor truck; the chassis; vehicle body and Hydraulic Station; described tractor truck and chassis are hinged; vehicle body and chassis are connected; at the be connected column of two hollows of the equal symmetry in the both sides of body structure; the surface of column arranges sliding tray; it is characterized in that: also comprise apart from remote sensor; the lifting performance element; front flattening platform; elevating control unit and protection pull bar; described apart from remote sensor be connected in cab ceiling above; the two ends of described lifting performance element are connected in the both sides of body structure respectively; stand upright on body structure during described front flattening platform inoperative; hinged with the slider bottom of lifting performance element; upset opens to level attitude during work; be positioned at the top of operator's compartment; the mouth of described elevating control unit is connected with lifting performance element and front flattening platform respectively; the input end of elevating control unit be electrically connected apart from remote sensor; one end of described protection pull bar and front flattening table-hinges connect, and the other end and the slide block of protection pull bar are hinged.
The structure of described lifting performance element is: it comprises two jacking systems and two slide blocks, jacking system places in the column of body structure both sides respectively, top and the column of jacking system are connected, the HM Hydraulic Motor of the bottom of jacking system and elevating control unit is connected, and slide block places in the sliding tray of column respectively, be connected with the load-bearing nut of jacking system.
The structure of described jacking system is: described jacking system is spiral lift device, the leading screw top of spiral lift device is connected by the column of multiple degree of freedom hoisting mechanism and body structure both sides, the dynamical axis of leading screw bottom and HM Hydraulic Motor is connected, and the load-bearing nut is connected with slide block, is connected with threads of lead screw.
The structure of described elevating control unit is: it comprises that front flattening platform drives the loop, jacking system drives loop and controller, described front flattening platform drives the input end in loop and the mouth of Hydraulic Station is tightly connected, mouth and front flattening platform that front flattening platform drives the loop are connected, the input end that described jacking system drives the loop and front flattening platform drive the input end in loop and are tightly connected with the mouth of Hydraulic Station after in parallel, and the mouth in jacking system driving loop and two jacking systems of lifting performance element are connected in series.
The structure that described front flattening platform drives the loop is: it comprises the first change-over valve, two flow regulating valve and two hydraulic rams, described the first change-over valve one end and Hydraulic Station are tightly connected, the other end is tightly connected with two hydraulic rams in parallel, at the input end of the hydraulic ram of parallel connection and the mouth flow regulating valve that all is tightly connected, two hydraulic rams front flattening platform both sides that are placed in, the cylinder bar of hydraulic ram and front flattening table-hinges connect, and the cylinder body of hydraulic ram is hinged with the slide block of the lifting performance element that is positioned at homonymy.
The structure that described jacking system drives the loop is: it comprises the second change-over valve, bidirectional hydraulic lock and two HM Hydraulic Motor, described the second change-over valve one end and Hydraulic Station are tightly connected, the other end is tightly connected with two HM Hydraulic Motor of connecting, bidirectional hydraulic lock is tightly connected between the HM Hydraulic Motor of connecting and the second change-over valve, two HM Hydraulic Motor be placed in the lifting performance element jacking system below, the dynamical axis of HM Hydraulic Motor is connected with the leading screw of jacking system respectively.
The present invention can regulate the front flattening platform with the cab ceiling distance automatically, the front flattening platform that the controller input of elevating control unit is default and the safety value h of the distance H between the cab ceiling, initial value h1 and stop value h2, the signal control lifting performance element work that the elevating control unit transmits according to the distance remote sensor, the lifting performance element drives and flattens the platform lifting to adjust the distance of front flattening platform and cab ceiling before jacking system drives, guarantee the distance h 1＜H＜h2 between front flattening platform and the cab ceiling, the locked loop that bidirectional hydraulic lock forms can prevent that hydraulic ram from gliding voluntarily under the effect of weight.During use, the lifting performance element drives when flattening the platform rising before jacking system drives, the hydraulic ram of lifting performance element drives the front flattening platform that is in erectility and begins turning and open, current flattening platform begins turning when opening to level attitude, hydraulic ram quits work, and the lifting performance element drives to flatten before jacking system drives when platform continues to rise to distance H between front flattening platform and the cab ceiling=h2 and quits work; The lifting performance element again drives to flatten when platform rises to H=h2 before jacking system drives and quits work during the distance H between current flattening platform and the cab ceiling＜h1, makes distance h 1＜H between front flattening platform and the cab ceiling＜h2.Have advantages of that the distance that flattens before the timely adjustment between platform and the cab ceiling loads a manned vehicle to improve operation benefits and social benefit to guarantee safety, front flattening platform above operator's compartment.
Description of drawings
Fig. 1 is that the present invention can regulate the structural representation with the front flattening platform of cab ceiling distance automatically;
Fig. 2 is the structural representation of lifting performance element of the present invention;
Fig. 3 is the structural representation of jacking system of the present invention;
Fig. 4 is the hydraulic schematic diagram of elevating control of the present invention unit;
Fig. 5 is the electrical schematic diagram of elevating control of the present invention unit.
Among the figure: 1 front flattening platform, 2 apart from remote sensor, 3 hydraulic rams; 4 columns, 5 protection pull bars, 6 slide blocks; 7 jacking systems, 8 load-bearing nuts, 9 HM Hydraulic Motor; 10 vehicle bodies, 11 chassis, 12 tractor trucks; 13 multiple degree of freedom hoisting mechanisms, 14 leading screws, 15 front flattening platforms drive the loop; 16 jacking systems drive loop, 17 first change-over valves, 18 check valves; 19 gear type pumps; 20 electrical motors, 21 hydraulic reservoirs, 22 filters; 23 by pass valves; 24 second change-over valves, 25 bidirectional hydraulic locks, 26 controllers.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
With reference to Fig. 1～Fig. 5; a kind of front flattening platform that can automatically regulate with the cab ceiling distance; it comprises tractor truck 12; chassis 11; vehicle body 10 and Hydraulic Station; described tractor truck 12 is hinged with chassis 11; vehicle body 10 is connected with chassis 11; at the be connected column 4 of two hollows of the equal symmetry in the both sides of vehicle body 10 front ends; the surface of column 4 arranges sliding tray; the power take-off shaft of the electrical motor 20 of Hydraulic Station and the power input shaft of gear type pump 19 are connected; the oil inlet of gear type pump 19 is tightly connected by filter 22 and hydraulic reservoir 21; the oil outlet of gear type pump 19 is by the close by pass valve 23 that is connected between check valve 18 and the hydraulic reservoir 21; also comprise apart from remote sensor 2; the lifting performance element; front flattening platform 1; elevating control unit and protection pull bar 5; described apart from remote sensor 2 be connected in cab ceiling above; the two ends of described lifting performance element are connected in the both sides of vehicle body 10 front ends respectively; stand upright on the front end of vehicle body 10 during described front flattening platform 1 inoperative; bottom-hinged with the slide block 6 of lifting performance element; upset opens to level attitude during work; be positioned at the top of operator's compartment; the mouth of described elevating control unit is connected with lifting performance element and front flattening platform 1 respectively; the input end of elevating control unit be electrically connected apart from remote sensor 2; one end of described protection pull bar 5 and front flattening platform 1 are hinged, and the other end and the slide block 6 of protection pull bar 5 are hinged.The structure of described lifting performance element is: it comprises two jacking systems 7 and two slide blocks 6, jacking system 7 places the inside of the column 4 of vehicle body 10 front end both sides respectively, the top of jacking system 7 and column 4 are connected, the HM Hydraulic Motor 9 of the bottom of jacking system 7 and elevating control unit is connected, and slide block 6 places in the sliding tray of column 4 respectively, be connected with the load-bearing nut 8 of jacking system 7.The structure of described jacking system 7 is: described jacking system 7 is spiral lift device, leading screw 14 tops of spiral lift device are connected by the column 4 of multiple degree of freedom hoisting mechanism 13 with vehicle body 10 front end both sides, the dynamical axis of the bottom of leading screw 14 and HM Hydraulic Motor 9 is connected, and load-bearing nut 8 is connected with slide block 6, is threaded with leading screw 14.The structure of described elevating control unit is: it comprises that front flattening platform drives loop 15, jacking system drives loop 16 and controller 26, described front flattening platform drives the input end in loop 15 and the mouth of Hydraulic Station is tightly connected, mouth and front flattening platform 1 that front flattening platform drives loop 15 are connected, the input end that described jacking system drives loop 16 and front flattening platform drive the input end in loop 15 and are tightly connected with the mouth of Hydraulic Station after in parallel, and the mouth in jacking system driving loop 16 and two jacking systems 7 of lifting performance element are connected in series.The structure that described front flattening platform drives loop 15 is: it comprises the first change-over valve 17, two flow regulating valve and two hydraulic rams 3, one end and the Hydraulic Station of described the first change-over valve 17 are tightly connected, the other end is tightly connected with two hydraulic rams 3 in parallel, at the input end of the hydraulic ram 3 of parallel connection and the mouth flow regulating valve that all is tightly connected, the be placed in both sides of front flattening platform 1 of two hydraulic rams 3, the cylinder bar of hydraulic ram 3 and front flattening platform 1 are hinged, and the cylinder body of hydraulic ram 3 is hinged with the slide block 6 of the lifting performance element that is positioned at homonymy.The structure that described jacking system drives loop 16 is: it comprises the second change-over valve 24, bidirectional hydraulic lock 25 and two HM Hydraulic Motor 9, described the second change-over valve 24 1 ends and Hydraulic Station are tightly connected, the other end is tightly connected with two HM Hydraulic Motor 9 of connecting, bidirectional hydraulic lock 25 is tightly connected between the HM Hydraulic Motor 9 of connecting and the second change-over valve 24, two HM Hydraulic Motor 9 be placed in the lifting performance element jacking system 7 below, the dynamical axis of HM Hydraulic Motor 9 is connected with the leading screw 14 of jacking system 7 respectively.Tractor truck 12, chassis 11, vehicle body 10 and Hydraulic Station adopt the prior art manufacturing, are the commercially available prod of prior art apart from remote sensor 2 and controller 26.
The hydraulic ram 3 of the present embodiment is the double-acting type hydraulic ram, and change-over valve is the 3-position 4-way solenoid directional control valve.The front flattening platform 1 that controller 26 inputs of elevating control unit are default and safety value h, initial value h1 and the stop value h2 of the distance H between the cab ceiling, the signal control lifting performance element work that the elevating control unit transmits according to distance remote sensor 2, the lifting performance element drives and flattens platform 1 lifting before jacking system 7 drives to adjust the distance of front flattening platform 1 and cab ceiling, guarantee the distance h 1＜H＜h2 between front flattening platform 1 and the cab ceiling, the locked loop that bidirectional hydraulic lock 25 forms can prevent that hydraulic ram 3 from gliding voluntarily under the effect of weight.During use, the lifting performance element drives when flattening platform 1 rising before jacking system 7 drives, the hydraulic ram 3 of lifting performance element drives the front flattening platform 1 that is in erectility and begins turning and open, current flattening platform 1 begins turning when opening to level attitude, hydraulic ram 3 quits work, and the lifting performance element drives to flatten before jacking system 7 drives when platform 1 continues to rise to distance H between front flattening platform 1 and the cab ceiling=h2 and quits work; The lifting performance element again drives to flatten when platform 1 rises to H=h2 before jacking system 7 drives and quits work during the distance H between current flattening platform 1 and the cab ceiling＜h1, makes distance h 1＜H between front flattening platform 1 and the cab ceiling＜h2.
Claims (6)
1. the front flattening platform that can automatically regulate with the cab ceiling distance; it comprises tractor truck; the chassis; vehicle body and Hydraulic Station; described tractor truck and chassis are hinged; vehicle body and chassis are connected; at the be connected column of two hollows of the equal symmetry in the both sides of body structure; the surface of column arranges sliding tray; it is characterized in that: also comprise apart from remote sensor; the lifting performance element; front flattening platform; elevating control unit and protection pull bar; described apart from remote sensor be connected in cab ceiling above; the two ends of described lifting performance element are connected in the both sides of body structure respectively; stand upright on body structure during described front flattening platform inoperative; hinged with the slider bottom of lifting performance element; upset opens to level attitude during work; be positioned at the top of operator's compartment; the mouth of described elevating control unit is connected with lifting performance element and front flattening platform respectively; the input end of elevating control unit be electrically connected apart from remote sensor; one end of described protection pull bar and front flattening table-hinges connect, and the other end and the slide block of protection pull bar are hinged.
2. the front flattening platform that can automatically regulate with the cab ceiling distance as claimed in claim 1, it is characterized in that: the structure of described lifting performance element is: it comprises two jacking systems and two slide blocks, jacking system places in the column of body structure both sides respectively, top and the column of jacking system are connected, the HM Hydraulic Motor of the bottom of jacking system and elevating control unit is connected, and slide block places in the sliding tray of column respectively, be connected with the load-bearing nut of jacking system.
3. the front flattening platform that can automatically regulate with the cab ceiling distance as claimed in claim 2, it is characterized in that: the structure of described jacking system is: described jacking system is spiral lift device, the leading screw top of spiral lift device is connected by the column of multiple degree of freedom hoisting mechanism and body structure both sides, the dynamical axis of leading screw bottom and HM Hydraulic Motor is connected, and the load-bearing nut is connected with slide block, is connected with threads of lead screw.
4. the front flattening platform that can automatically regulate with the cab ceiling distance as claimed in claim 1, it is characterized in that: the structure of described elevating control unit is: it comprises that front flattening platform drives the loop, jacking system drives loop and controller, described front flattening platform drives the input end in loop and the mouth of Hydraulic Station is tightly connected, mouth and front flattening platform that front flattening platform drives the loop are connected, the input end that described jacking system drives the loop and front flattening platform drive the input end in loop and are tightly connected with the mouth of Hydraulic Station after in parallel, and the mouth in jacking system driving loop and two jacking systems of lifting performance element are connected in series.
5. such as claim 1 or the 4 described front flattening platforms that can automatically regulate with the cab ceiling distance, it is characterized in that: the structure that described front flattening platform drives the loop is: it comprises change-over valve, two flow regulating valve and two hydraulic rams, described change-over valve one end and Hydraulic Station are tightly connected, the other end is tightly connected with two hydraulic rams in parallel, at the input end of the hydraulic ram of parallel connection and the mouth flow regulating valve that all is tightly connected, two hydraulic rams front flattening platform both sides that are placed in, the cylinder bar of hydraulic ram and front flattening table-hinges connect, and the cylinder body of hydraulic ram is hinged with the slide block of the lifting performance element that is positioned at homonymy.
6. such as claim 1 or the 4 described front flattening platforms that can automatically regulate with the cab ceiling distance, it is characterized in that: the structure that described jacking system drives the loop is: it comprises change-over valve, bidirectional hydraulic lock and two HM Hydraulic Motor, described change-over valve one end and Hydraulic Station are tightly connected, the other end is tightly connected with two HM Hydraulic Motor of connecting, bidirectional hydraulic lock is tightly connected between the HM Hydraulic Motor of connecting and change-over valve, two HM Hydraulic Motor be placed in the lifting performance element jacking system below, the dynamical axis of HM Hydraulic Motor is connected with the leading screw of jacking system respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102494105A CN103318278A (en) | 2013-06-22 | 2013-06-22 | Forward-extending platform capable of adjusting distance to cab ceiling automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102494105A CN103318278A (en) | 2013-06-22 | 2013-06-22 | Forward-extending platform capable of adjusting distance to cab ceiling automatically |
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| CN103318278A true CN103318278A (en) | 2013-09-25 |
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| CN2013102494105A Pending CN103318278A (en) | 2013-06-22 | 2013-06-22 | Forward-extending platform capable of adjusting distance to cab ceiling automatically |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075351A (en) * | 2020-01-10 | 2020-04-28 | 长沙理工大学 | Roofbolter system |
| CN114475818A (en) * | 2022-03-31 | 2022-05-13 | 徐工集团工程机械股份有限公司道路机械分公司 | Driving shed |
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| US4992013A (en) * | 1988-10-21 | 1991-02-12 | Autohaul Industries, Inc. | Combination freight and vehicle carrying trailer |
| CN201082687Y (en) * | 2007-06-25 | 2008-07-09 | 重庆耐德山花特种车有限责任公司 | Transport vehicle for conveying vehicles |
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| CN201442541U (en) * | 2009-05-27 | 2010-04-28 | 山东临清迅力特种汽车有限公司 | Novel lightweight refrigerated van semi-trailer |
| CN102548798A (en) * | 2010-05-18 | 2012-07-04 | 威廉·帕夫卢克 | Convertible trailer |
| CN202357951U (en) * | 2011-11-25 | 2012-08-01 | 中国第一汽车股份有限公司 | Automatic lifting transitional tail plate mechanism of car transporter |
| CN203318545U (en) * | 2013-06-22 | 2013-12-04 | 吉林市长久专用车有限公司 | Front-folding platform capable of adjusting distance from cab ceiling automatically |
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2013
- 2013-06-22 CN CN2013102494105A patent/CN103318278A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4992013A (en) * | 1988-10-21 | 1991-02-12 | Autohaul Industries, Inc. | Combination freight and vehicle carrying trailer |
| CN101331052A (en) * | 2005-12-16 | 2008-12-24 | 约斯特-韦克两合公司 | Slider comprising a hydraulic cylinder |
| CN201082687Y (en) * | 2007-06-25 | 2008-07-09 | 重庆耐德山花特种车有限责任公司 | Transport vehicle for conveying vehicles |
| CN201442541U (en) * | 2009-05-27 | 2010-04-28 | 山东临清迅力特种汽车有限公司 | Novel lightweight refrigerated van semi-trailer |
| CN102548798A (en) * | 2010-05-18 | 2012-07-04 | 威廉·帕夫卢克 | Convertible trailer |
| CN202357951U (en) * | 2011-11-25 | 2012-08-01 | 中国第一汽车股份有限公司 | Automatic lifting transitional tail plate mechanism of car transporter |
| CN203318545U (en) * | 2013-06-22 | 2013-12-04 | 吉林市长久专用车有限公司 | Front-folding platform capable of adjusting distance from cab ceiling automatically |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111075351A (en) * | 2020-01-10 | 2020-04-28 | 长沙理工大学 | Roofbolter system |
| CN111075351B (en) * | 2020-01-10 | 2021-04-23 | 长沙理工大学 | Roofbolter system |
| CN114475818A (en) * | 2022-03-31 | 2022-05-13 | 徐工集团工程机械股份有限公司道路机械分公司 | Driving shed |
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Application publication date: 20130925 |