CN104742988A - Hydraulic lifting system - Google Patents
Hydraulic lifting system Download PDFInfo
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- CN104742988A CN104742988A CN201510087903.2A CN201510087903A CN104742988A CN 104742988 A CN104742988 A CN 104742988A CN 201510087903 A CN201510087903 A CN 201510087903A CN 104742988 A CN104742988 A CN 104742988A
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- mouth
- hydraulic
- lifting cylinder
- operator
- load lifting
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Abstract
The invention relates to the technical field of automobile manufacturing, in particular to a hydraulic lifting system. The hydraulic lifting system comprises a lifting pump assembly, a cab lifting cylinder and a spare tire lifting cylinder. The lifting pump assembly comprises an oil can, a hydraulic pump and a reversing valve. The reversing valve is provided with six connectors and comprises four working positions. A cab can be controlled to be lifted and put down. A spare tire can be controlled to be lifted and put down. The cab lifting hydraulic system and the spare tire hydraulic lifting system are integrated into the hydraulic lifting system. The hydraulic lifting system can be compact and reasonable in structure, the number of parts is decreased, the hydraulic lifting system is easy to assemble, repair, preserve and maintain, and cost is reduced. The turning process of the cab conforms to the differential motion principle, the lifting strength of the cab lifting cylinder is large, and the piston stretching speed is high. In addition, the problems that due to the fact that an oil can of an existing spare tire lifting pump is small in volume, oil overflow and oil shortage happen are solved.
Description
Technical field
The present invention relates to field of automobile, specifically a kind of hydraulic lifting system.
Background technology
New century, my army proposes the developing goal of high evasive tactics vehicle, military overland vehicle improve attach most importance to manoevreability every tactics, technical performance promote while, adapt to carry out in tactics region operational support task, in manoevreability, Terrain surface crossing ability is particularly important, decides vehicle and whether can ensure that main battle weapons carries out.For ensureing the performance figure such as its high maneuverability, cross-country traveling ability, high ride, general employing Wide Band Oxygen Sensors major diameter infrabar high-performance tire, spare tyre is almost the spare part in common of all running on wheels vehicles, giant tyre cannot rely on manpower to carry out spare tyre handling, must be realized by hydraulic pressure spare tyre holder, and operator's compartment lifting equally also needs hydraulic efficiency pressure system to realize, on the right side of chassis, need layout two to overlap hoisting system like this, the shortcoming of this structure is: 1, operator's compartment lifting pump and spare tyre lifting pump conflict in layout, and height direction can not meet best lifting position; 2, piping layout is chaotic, and should not distinguish also cannot be general; 3, easily obscure in maintenance and indemnifying party's face, the accessory interchangeability of two cover hoisting systems is low, increases past-sale service difficulty; 4, spare tyre lifting pump oil can volume is little at present, has bellding, petrol starvation to occur.
Summary of the invention
The object of the invention is to solve above-mentioned the deficiencies in the prior art, provide a kind of rational in infrastructure, be easy to maintaining hydraulic lifting system, can realize that operator's compartment lifting process strength is large, speed is fast, the steady safety of decline process of operator's compartment and spare tyre.
Technical matters to be solved by this invention realizes by the following technical solutions: a kind of hydraulic lifting system, comprise lifting pump assembly, operator's compartment load lifting cylinder and spare tyre load lifting cylinder, described lifting pump assembly comprises oil can, Hydraulic Pump and change-over valve, described change-over valve is provided with six interfaces: P mouth, O mouth, A mouth, B mouth, C mouth and D mouth, described Hydraulic Pump is connected with P mouth, and described oil can is connected with O mouth; The rod chamber of described operator's compartment load lifting cylinder is connected with A mouth, and the rodless cavity of operator's compartment load lifting cylinder is connected with B mouth; The rodless cavity of described spare tyre load lifting cylinder is connected with C mouth, and the rod chamber of spare tyre load lifting cylinder is connected with D mouth; Described change-over valve has four control positioies: I, II, III and IV, and change-over valve is I time, and P mouth and A mouth are connected, and O mouth and B mouth are connected, and C mouth and D mouth are closed, now hydraulic pump works, the piston retracts of operator's compartment load lifting cylinder, and operator's compartment falls after rise; Change-over valve is II time, P mouth, O mouth, A mouth and B mouth are connected, C mouth and D mouth are closed, now hydraulic pump works, rod chamber and the rodless cavity of operator's compartment load lifting cylinder all pass into hydraulic oil, but account for certain area due to piston rod, therefore the pressure of operator's compartment load lifting cylinder rodless cavity is greater than the pressure of operator's compartment load lifting cylinder rod chamber, the piston rod of operator's compartment load lifting cylinder stretches out, driver's cab turnover, and this process meets differential principle; Change-over valve is III time, and P mouth and C mouth are connected, and O mouth and D mouth are connected, and A mouth and B mouth are closed, now hydraulic pump works, and the piston of spare tyre load lifting cylinder stretches out, and spare tyre is by lifting; Change-over valve is IV time, and P mouth and D mouth are connected, and O mouth and C mouth are connected, and A mouth and B mouth are closed, now hydraulic pump works, the piston retracts of spare tyre load lifting cylinder, and spare tyre declines.
Technical scheme of the present invention also has: described Hydraulic Pump is hand piston pump, and be provided with liquid control one-way throttle valve between the rodless cavity of described operator's compartment load lifting cylinder and B mouth, described liquid control one-way throttle valve is connected with A mouth by pilot piping; Be provided with hydraulic control one-way valve between the rodless cavity of described spare tyre load lifting cylinder and C mouth, described hydraulic control one-way valve is connected with D mouth by pilot piping.Because Hydraulic Pump is hand piston pump, after the piston of operator's compartment load lifting cylinder stretches out, in order to keep the pressure of operator's compartment load lifting cylinder rodless cavity, preventing operator's compartment from falling after rise, liquid control one-way throttle valve is set, in like manner, hydraulic control one-way valve is set.
Technical scheme of the present invention also has: the pipeline between the rod chamber of described operator's compartment load lifting cylinder and A mouth is provided with adjustable throttling.By regulating adjustable throttling, the operator's compartment of Different Weight can being adapted to, such as during operator's compartment lighter in weight, can manpower be saved by regulating adjustable throttling.
Technical scheme of the present invention also has: be provided with parallel one-way throttle valve between the rodless cavity of described operator's compartment load lifting cylinder and B mouth.Adopt the technical program, when hydraulic oil can be made to flow to the rodless cavity of operator's compartment load lifting cylinder from oil pump, flow velocity is normal, and the hydraulic oil in the rodless cavity of operator's compartment load lifting cylinder is subject to throttling action when flowing back to oil can, thus make the falling process of operator's compartment steadily slow, to ensure safety.。
Technical scheme of the present invention also has: the pipeline between described O mouth and oil can is provided with tandem one-way throttle valve.When change-over valve is at II, P mouth, O mouth, A mouth and B mouth are connected, and now tandem one-way throttle valve can prevent the hydraulic oil in oil can from flowing backwards and enter change-over valve, in addition, tandem one-way throttle valve can also make the decline process of the falling process of operator's compartment and spare tyre steadily slow, to ensure safety.
Technical scheme of the present invention also has: described lifting pump assembly also comprises the by pass valve in parallel with Hydraulic Pump.
Technical scheme of the present invention also has: also comprise multiple filter.
Relative to prior art, the beneficial effect of hydraulic lifting system of the present invention is: operator's compartment lifting hydraulic system and spare tyre hydraulic lifting system are combined into a hydraulic lifting system, make the compact conformation of hydraulic lifting system reasonable, amount of parts reduces, be easy to assembling, maintenance, care and maintenance, cost reduces; Driver's cab turnover process meets differential principle, and the lifting strength of operator's compartment load lifting cylinder is large, piston stretches out speed block; In addition, little bellding, the oil starvation problem caused of former spare tyre lifting pump oil can volume is solved.
Accompanying drawing explanation
Fig. 1 is the structural representation that hydraulic lifting system of the present invention is arranged on vehicle body.
Fig. 2 be along A in Fig. 1 to view.
Fig. 3 is the schematic diagram of hydraulic lifting system of the present invention.
Fig. 4 is the schematic diagram of change-over valve of the present invention.
In figure: 1, be elevated pump assembly, 2, operator's compartment load lifting cylinder, 3, spare tyre load lifting cylinder, 4, oil can, 5, Hydraulic Pump, 6, change-over valve, 7, P mouth, 8, O mouth, 9, A mouth, 10, B mouth, 11, C mouth, 12, D mouth, 13, liquid control one-way throttle valve, 14, hydraulic control one-way valve, 15, adjustable throttling, 16, parallel one-way throttle valve, 17, tandem one-way throttle valve, 18, by pass valve, 19, filter, 20, pump support, 21, fender bracket, 22, operator's compartment load lifting cylinder bearing, 23, chassis side rail, 24, hydraulic pressure spare tyre holder, 25, high pressure fuel pipe.
Detailed description of the invention
For the technical characterstic of this programme can be clearly demonstrated, with reference to the accompanying drawings the specific embodiment of the invention is described further below.
As shown in Figure 1 and Figure 2, Hydraulic Pump assembly 1 is arranged on fender bracket 21 by pump support 20, requires to install fixing rear oil can 4 level.Operator's compartment load lifting cylinder 2 is arranged on operator's compartment front bottom end by operator's compartment load lifting cylinder bearing 22, and near trip shaft position, the piston rod end of operator's compartment load lifting cylinder 2 is connected with chassis side rail 23.Spare tyre load lifting cylinder 3 is arranged on the fixed bearing of hydraulic pressure spare tyre holder 24, and the piston rod of spare tyre load lifting cylinder 3 downwards and be connected with movable double leval jib.Operator's compartment load lifting cylinder 2 and spare tyre load lifting cylinder 3 are connected with Hydraulic Pump assembly 1 by the high pressure fuel pipe 25 that four colors are different, and the length of four high pressure fuel pipes 25 and joint are all identical, ensure that its interchangeability.
As shown in Figure 3, Figure 4, hydraulic lifting system of the present invention comprises lifting pump assembly 1, operator's compartment load lifting cylinder 2 and spare tyre load lifting cylinder 3, and described lifting pump assembly 1 comprises oil can 4, Hydraulic Pump 5, change-over valve 6 and by pass valve 18, and described Hydraulic Pump 5 is hand piston pump.
Described change-over valve 6 is provided with six interfaces: P mouth 7, O mouth 8, A mouth 9, B mouth 10, C mouth 11 and D mouth 12, and described Hydraulic Pump 5 is connected with P mouth 7, and described oil can 4 is connected with O mouth 8, and the pipeline between oil can 4 and O mouth 8 is provided with tandem one-way throttle valve 17.
The rod chamber of described operator's compartment load lifting cylinder 2 is connected with A mouth 9, and the pipeline between the rod chamber of operator's compartment load lifting cylinder 2 and A mouth 9 is provided with adjustable throttling 15; The rodless cavity of operator's compartment load lifting cylinder 2 is connected with B mouth 10, is provided with liquid control one-way throttle valve 13 between the rodless cavity of operator's compartment load lifting cylinder 2 and B mouth 10, and described liquid control one-way throttle valve 13 is connected with A mouth 9 by pilot piping; Parallel one-way throttle valve 16 is provided with between the rodless cavity of operator's compartment load lifting cylinder 2 and B mouth 10.
The rodless cavity of described spare tyre load lifting cylinder 3 is connected with C mouth 11, is provided with hydraulic control one-way valve 14 between the rodless cavity of spare tyre load lifting cylinder 3 and C mouth 11, and described hydraulic control one-way valve 14 is connected with D mouth 12 by pilot piping, and the rod chamber of spare tyre load lifting cylinder 3 is connected with D mouth 12.
Described change-over valve has four control positioies: I, II, III and IV.
Change-over valve is I time, P mouth 7 and A mouth 9 are connected, O mouth 8 and B mouth 10 are connected, C mouth 11 and D mouth 12 are closed, now Hydraulic Pump 5 works, the piston retracts of operator's compartment load lifting cylinder 2, and operator's compartment falls after rise, under the effect of tandem one-way throttle valve 17 and parallel one-way throttle valve 16, the falling process of operator's compartment is steadily slow.
Change-over valve is II time, P mouth 7, O mouth 8, A mouth 9 and B mouth 10 are connected, C mouth 11 and D mouth 12 are closed, and now Hydraulic Pump 5 works, and rod chamber and the rodless cavity of operator's compartment load lifting cylinder 2 all pass into hydraulic oil, but because piston rod accounts for certain area, therefore the pressure of operator's compartment load lifting cylinder 2 rodless cavity is greater than the pressure of operator's compartment load lifting cylinder 2 rod chamber, the piston rod of operator's compartment load lifting cylinder 2 stretches out, driver's cab turnover, this process meets differential principle, and the lifting strength of operator's compartment load lifting cylinder 2 is large, piston stretches out speed block.By regulating adjustable throttling 15, the operator's compartment of Different Weight can being adapted to, such as during operator's compartment lighter in weight, can manpower be saved by regulating adjustable throttling 15.Owing to being provided with liquid control one-way throttle valve 13 between the rodless cavity of operator's compartment load lifting cylinder 2 and B mouth 10, the pressure of operator's compartment load lifting cylinder 2 rodless cavity can being kept, prevent operator's compartment from falling after rise.Because the pipeline between oil can 4 and O mouth 8 is provided with tandem one-way throttle valve 17, can prevent the hydraulic oil in oil can 4 from flowing backwards and enter change-over valve 6.
Change-over valve 6 is III time, and P mouth 7 and C mouth 11 are connected, and O mouth 8 and D mouth 12 are connected, and A mouth 9 and B mouth 10 are closed, and now Hydraulic Pump 5 works, and the piston of spare tyre load lifting cylinder 3 stretches out, and spare tyre is by lifting.Owing to being provided with hydraulic control one-way valve 14 between the rodless cavity of spare tyre load lifting cylinder 3 and C mouth 11, the pressure of spare tyre load lifting cylinder 3 rodless cavity can being kept, prevent spare tyre from declining.
Change-over valve 6 is IV time, and P mouth 7 and D mouth 12 are connected, and O mouth 8 and C mouth 11 are connected, and A mouth 9 and B mouth 10 are closed, and now Hydraulic Pump 5 works, the piston retracts of spare tyre load lifting cylinder 3, and spare tyre declines.Tandem one-way throttle valve 17 can make the decline process of spare tyre steadily slow.
Be provided with multiple filter 19 in this hydraulic lifting system, with the impurity in filtering hydraulic oil, ensure the normal work of Hydraulic Elements.
By reference to the accompanying drawings embodiments of the invention are elaborated above, but the present invention is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also makes a variety of changes under the prerequisite not departing from present inventive concept.
Claims (8)
1. a hydraulic lifting system, it is characterized in that: comprise lifting pump assembly (1), operator's compartment load lifting cylinder (2) and spare tyre load lifting cylinder (3), described lifting pump assembly (1) comprises oil can (4), Hydraulic Pump (5) and change-over valve (6), described change-over valve (6) is provided with six interfaces: P mouth (7), O mouth (8), A mouth (9), B mouth (10), C mouth (11) and D mouth (12), described Hydraulic Pump (5) is connected with P mouth (7), and described oil can (4) is connected with O mouth (8); The rod chamber of described operator's compartment load lifting cylinder (2) is connected with A mouth (9), and the rodless cavity of operator's compartment load lifting cylinder (2) is connected with B mouth (10); The rodless cavity of described spare tyre load lifting cylinder (3) is connected with C mouth (11), and the rod chamber of spare tyre load lifting cylinder (3) is connected with D mouth (12); Described change-over valve (6) has four control positioies: I, II, III and IV, and change-over valve (6) is I time, and P mouth (7) and A mouth (9) are connected, and O mouth (8) and B mouth (10) are connected, and C mouth (11) and D mouth (12) are closed; Change-over valve (6) is II time, and P mouth (7), O mouth (8), A mouth (9) and B mouth (10) are connected, and C mouth (11) and D mouth (12) are closed; Change-over valve is III time, and P mouth (7) and C mouth (11) are connected, and O mouth (8) and D mouth (12) are connected, and A mouth (9) and B mouth (10) are closed; Change-over valve (6) is IV time, and P mouth (7) and D mouth (12) are connected, and O mouth (8) and C mouth (11) are connected, and A mouth (9) and B mouth (10) are closed.
2. hydraulic lifting system according to claim 1, it is characterized in that: described Hydraulic Pump (5) is hand piston pump, be provided with liquid control one-way throttle valve (13) between the rodless cavity of described operator's compartment load lifting cylinder (2) and B mouth (10), described liquid control one-way throttle valve (13) is connected with A mouth (9) by pilot piping; Be provided with hydraulic control one-way valve (14) between the rodless cavity of described spare tyre load lifting cylinder (3) and C mouth (11), described hydraulic control one-way valve (14) is connected with D mouth (12) by pilot piping.
3. hydraulic lifting system according to claim 2, is characterized in that: the pipeline between the rod chamber of described operator's compartment load lifting cylinder (2) and A mouth (9) is provided with adjustable throttling (15).
4., according to the arbitrary described hydraulic lifting system of claim 1-3, it is characterized in that: between the rodless cavity of described operator's compartment load lifting cylinder (2) and B mouth (10), be provided with parallel one-way throttle valve (16).
5., according to the arbitrary described hydraulic lifting system of claim 1-3, it is characterized in that: the pipeline between described O mouth (8) and oil can (4) is provided with tandem one-way throttle valve (17).
6. hydraulic lifting system according to claim 4, is characterized in that: the pipeline between described O mouth (8) and oil can (4) is provided with tandem one-way throttle valve (17).
7., according to the arbitrary described hydraulic lifting system of claim 1-3, it is characterized in that: described lifting pump assembly (1) also comprises the by pass valve (18) in parallel with Hydraulic Pump (5).
8., according to the arbitrary described hydraulic lifting system of claim 1-3, it is characterized in that: also comprise multiple filter (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087903.2A CN104742988A (en) | 2015-02-26 | 2015-02-26 | Hydraulic lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087903.2A CN104742988A (en) | 2015-02-26 | 2015-02-26 | Hydraulic lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104742988A true CN104742988A (en) | 2015-07-01 |
Family
ID=53583415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510087903.2A Pending CN104742988A (en) | 2015-02-26 | 2015-02-26 | Hydraulic lifting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104742988A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960584A (en) * | 2015-07-10 | 2015-10-07 | 实用动力(中国)工业有限公司 | Integrated hydraulic cab tilting power unit for heavy-load truck |
| CN107738698A (en) * | 2017-11-07 | 2018-02-27 | 中国重汽集团南充海乐机械有限公司 | A kind of durable in use, lightweight hydraulic lifting system |
| CN109911039A (en) * | 2017-12-12 | 2019-06-21 | 本田技研工业株式会社 | The spare tyre supporting structure of vehicle and the handling method of spare tyre |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59199330A (en) * | 1983-04-26 | 1984-11-12 | Honda Motor Co Ltd | Controller for differential lock apparatus |
| CN201506398U (en) * | 2009-10-13 | 2010-06-16 | 陕西汽车集团有限责任公司 | A novel spare tire rack and a cab turnover hydraulic system |
| CN201999091U (en) * | 2010-12-04 | 2011-10-05 | 中国三江航天工业集团公司特种车辆技术中心 | Hydraulic turnover device for overweight driving cabs |
| CN202320548U (en) * | 2011-07-07 | 2012-07-11 | 谢建萍 | Manual and electric dual-purpose truck cab turning hydraulic system |
| CN202413964U (en) * | 2011-12-14 | 2012-09-05 | 三一重工股份有限公司 | Cab overturn protection device and heavy duty car |
| US20140159424A1 (en) * | 2012-12-11 | 2014-06-12 | Hyundai Motor Company | Front panel opening/closing system interlocking with cab tilting |
-
2015
- 2015-02-26 CN CN201510087903.2A patent/CN104742988A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59199330A (en) * | 1983-04-26 | 1984-11-12 | Honda Motor Co Ltd | Controller for differential lock apparatus |
| CN201506398U (en) * | 2009-10-13 | 2010-06-16 | 陕西汽车集团有限责任公司 | A novel spare tire rack and a cab turnover hydraulic system |
| CN201999091U (en) * | 2010-12-04 | 2011-10-05 | 中国三江航天工业集团公司特种车辆技术中心 | Hydraulic turnover device for overweight driving cabs |
| CN202320548U (en) * | 2011-07-07 | 2012-07-11 | 谢建萍 | Manual and electric dual-purpose truck cab turning hydraulic system |
| CN202413964U (en) * | 2011-12-14 | 2012-09-05 | 三一重工股份有限公司 | Cab overturn protection device and heavy duty car |
| US20140159424A1 (en) * | 2012-12-11 | 2014-06-12 | Hyundai Motor Company | Front panel opening/closing system interlocking with cab tilting |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104960584A (en) * | 2015-07-10 | 2015-10-07 | 实用动力(中国)工业有限公司 | Integrated hydraulic cab tilting power unit for heavy-load truck |
| CN107738698A (en) * | 2017-11-07 | 2018-02-27 | 中国重汽集团南充海乐机械有限公司 | A kind of durable in use, lightweight hydraulic lifting system |
| CN109911039A (en) * | 2017-12-12 | 2019-06-21 | 本田技研工业株式会社 | The spare tyre supporting structure of vehicle and the handling method of spare tyre |
| CN109911039B (en) * | 2017-12-12 | 2022-04-22 | 本田技研工业株式会社 | Spare tire support structure for vehicle and method for attaching and detaching spare tire |
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Application publication date: 20150701 |
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