CN201890108U - Proportional synchronous lifting system - Google Patents
Proportional synchronous lifting system Download PDFInfo
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- CN201890108U CN201890108U CN2010205961765U CN201020596176U CN201890108U CN 201890108 U CN201890108 U CN 201890108U CN 2010205961765 U CN2010205961765 U CN 2010205961765U CN 201020596176 U CN201020596176 U CN 201020596176U CN 201890108 U CN201890108 U CN 201890108U
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- valve
- ratio
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- oil cylinder
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Abstract
The utility model relates to a proportional synchronous lifting system. The proportional synchronous lifting system comprises a proportional synchronous lifting valve bank, four groups of supporting oil cylinders, a controller and position sensors, wherein the proportional synchronous lifting valve bank comprises a valve block body and four groups of hydraulic control one-way valves, proportional directional valves, plate-type ball valves, pressure sensors and overflow valves; the four groups of hydraulic control one-way valves, proportional directional valves, plate-type ball valves, pressure sensors and overflow valves are arranged on the valve block body; the position sensors are connected with the controller and height sensors which are arranged at supporting points; the controller is connected with the proportional lifting valve bank; and the proportional lifting valve bank is connected with the supporting oil cylinders. Due to the adoption of the structure, closed-loop control can be realized, and the precision and the stability for synchronization of a lifting platform are improved.
Description
Technical field
The utility model relates to the synchronous elevator system of a kind of ratio, particularly a kind of synchronous elevator system of ratio that applies to a deep loading vehicle hydraulic suspension system.
Background technology
The elevator system of traditional platform load-carrying vehicle is normally used to be governor valve integrated valve block elevator system, and this valve piece uses the Hydraulic Elements speed governing fully, has advantage simple in structure, dependable performance, has obtained to use widely on flat truck peculiar to vessel.But its weak point is to realize close-loop feedback control, speed of response is slow, synchronization accuracy is lower, and to a deep loading vehicle demanding user of lifting synchronization accuracy, this system can't meet consumers' demand for some.
Summary of the invention
Technical problem to be solved in the utility model provides the synchronous elevator system of a kind of ratio, and this system can realize closed loop control, improves the synchronization accuracy and the stationarity of lifting table.
For solving the problems of the technologies described above, the utility model comprises the synchronous poppet valve group of ratio, supporting oil cylinder, controller, position transduser, described ratio poppet valve group comprises valve block body, hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve, and described hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve are four groups and are installed on the valve block body; Described position transduser and controller, the height sensor that is arranged at supporting-point are connected, and described controller is connected with ratio poppet valve group, and described ratio poppet valve group is connected with supporting oil cylinder; Described supporting oil cylinder is four groups.
Preferably, described every group of supporting oil cylinder comprises 1-20 hydraulic plunger oil cylinder.
More preferred, described valve block body inside is processed with oil duct, is connected with the hydraulic fluid port of described hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve.
In the such scheme, described board-like ball valve is installed on described valve block body side, and four supporting-point are coupled together in twos.
The beneficial effects of the utility model:
1: adopt the speed governing of proportion directional valve, and height that can the detection platform lifting, realizing closed loop control, lifting is steadily good, the synchronization accuracy height.
2: adopt integrated oil path block that elements such as proportion directional valve, hydraulic control one-way valve, board-like ball valve, pressure sensor are integrated; realized multiple functions such as rise and fall switching, speed setting, hydraulic control one-way valve are fixed, safety guard-safeguard, load-bearing in real time, compact conformation, reliability height, cost of manufacture are low.
3: the board-like ball valve above the operation proportional velocity regulating valve group, any two connections in four supporting-point can be become three point support by four-point supporting, can adapt to the demand of various different road conditions.
Description of drawings
Below in conjunction with the drawings and specific embodiments the technical solution of the utility model is further described in detail.
Fig. 1 is the synchronous elevator system schematic diagram of ratio;
Fig. 2 is the synchronous poppet valve group of ratio Facad structure figure;
Fig. 3 is the synchronous poppet valve group of a ratio construction profile.
The specific embodiment
As Fig. 1, Fig. 2, shown in Figure 3, the utility model comprises the synchronous poppet valve group of ratio, supporting oil cylinder 5, controller 1, position transduser 4, described ratio poppet valve group comprises valve block body 2, hydraulic control one-way valve 9, proportion directional valve 3, board-like ball valve 7, pressure sensor 6, by pass valve 8, and described hydraulic control one-way valve 9, proportion directional valve 3, board-like ball valve 7, pressure sensor 6, by pass valve 8 are four groups and are installed on the valve block body 2; Described position transduser 4 and controller 1, the height sensor that is arranged at supporting-point are connected, and described controller 1 is connected with ratio poppet valve group, and described ratio poppet valve group is connected with supporting oil cylinder 5; Described supporting oil cylinder 5 is four groups.
When vehicle platform promotes, controller 1 sends control current and gives proportion directional valve 3, and the size of passing through the regulating control electric current changes the flow of the hydraulic oil of passing ratio direction valve 3, flow enters each supporting oil cylinder 5 by hydraulic control one-way valve 9 behind overregulate, supporting oil cylinder 5 piston rods are moved synchronously, finish the synchronous lifting of vehicle platform.Lifting finishes, controller 1 stops to send control current to control proportion directional valve 3, proportion directional valve 3 spools move to interposition, hydraulic power source is blocked, make hydraulic control one-way valve 9 control port terminal pressure vanishing, the loop of supporting oil cylinder 5 is blocked by hydraulic control one-way valve 9, is the hydraulic circuit locking this moment, guarantees that supporting oil cylinder 5 does not bounce back under supporting weight situation.During decline, controller 1 sends control current to proportion directional valve 3, make 3 commutations of proportion directional valve, hydraulic control one-way valve 9 control port ends and hydraulic power source conducting, control presssure rises, and the main valve plug of hydraulic control one-way valve 9 moves under the promotion of control presssure, and the locked loop of hydraulic control one-way valve is opened, be back to fuel tank behind the pressure oil release of pressure in the hydraulic plunger oil cylinder, finish the process of synchronous decline.In the process that promotes and descend, position transduser 4 is current signal and feeds back to vehicle control device 1 the real-time high-degree of conversion of vehicle platform, after controller 1 relatively calculates the height error of 4 strong points and rectifies a deviation, send corresponding current signal to each proportion directional valve 3, the flow of control ratio direction valve 3, the height of four strong points of real-time regulated vehicle platform.In vehicle platform lifting or locking process, if because load-reason makes supporting oil cylinder 5 pressure inside sharply rise, when pressure reaches the setting pressure of by pass valve 8, the action of by pass valve 8 spools releases pressure, and the pipeline and the element of protection system are not damaged; Pressure sensor 6 can detect the pressure of each supporting-point in real time, and force value is converted into current signal, realizes the electronics weight-bearing function.
It should be noted last that, the above specific embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (4)
1. synchronous elevator system of ratio, it is characterized in that, described system comprises the synchronous poppet valve group of ratio, supporting oil cylinder, controller, position transduser, described ratio poppet valve group comprises valve block body, hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve, and described hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve are four groups and are installed on the valve block body; Described position transduser and controller, the height sensor that is arranged at supporting-point are connected, and described controller is connected with ratio poppet valve group, and described ratio poppet valve group is connected with supporting oil cylinder; Described supporting oil cylinder is four groups.
2. the synchronous elevator system of a kind of ratio according to claim 1 is characterized in that described every group of supporting oil cylinder comprises 1-20 hydraulic plunger oil cylinder.
3. the synchronous elevator system of a kind of ratio according to claim 1 and 2 is characterized in that, described valve block body inside is processed with oil duct, is connected with the hydraulic fluid port of described hydraulic control one-way valve, proportion directional valve, board-like ball valve, pressure sensor, by pass valve.
4. the synchronous elevator system of a kind of ratio according to claim 3 is characterized in that, described board-like ball valve is installed on described valve block body side, and four supporting-point are coupled together in twos.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205961765U CN201890108U (en) | 2010-11-08 | 2010-11-08 | Proportional synchronous lifting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205961765U CN201890108U (en) | 2010-11-08 | 2010-11-08 | Proportional synchronous lifting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201890108U true CN201890108U (en) | 2011-07-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205961765U Expired - Fee Related CN201890108U (en) | 2010-11-08 | 2010-11-08 | Proportional synchronous lifting system |
Country Status (1)
| Country | Link |
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| CN (1) | CN201890108U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434511A (en) * | 2011-11-22 | 2012-05-02 | 江苏龙城洪力液压设备有限公司 | Multiple-cylinder synchronous hydraulic system |
| CN102862456A (en) * | 2012-09-26 | 2013-01-09 | 中联重科股份有限公司 | Suspension system, switching-on/off control system and detection method thereof |
| CN108674119A (en) * | 2018-04-26 | 2018-10-19 | 北京航天发射技术研究所 | A kind of automatic adjustment height method of vehicle suspension |
| CN113003467A (en) * | 2021-04-10 | 2021-06-22 | 南京工程学院 | Hydraulic control device and method for mounting rubber-plastic spring damping device of large coal mill |
-
2010
- 2010-11-08 CN CN2010205961765U patent/CN201890108U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434511A (en) * | 2011-11-22 | 2012-05-02 | 江苏龙城洪力液压设备有限公司 | Multiple-cylinder synchronous hydraulic system |
| CN102862456A (en) * | 2012-09-26 | 2013-01-09 | 中联重科股份有限公司 | Suspension system, switching-on/off control system and detection method thereof |
| CN102862456B (en) * | 2012-09-26 | 2015-03-04 | 中联重科股份有限公司 | Suspension system, switching-on/off control system and detection method thereof |
| CN108674119A (en) * | 2018-04-26 | 2018-10-19 | 北京航天发射技术研究所 | A kind of automatic adjustment height method of vehicle suspension |
| CN113003467A (en) * | 2021-04-10 | 2021-06-22 | 南京工程学院 | Hydraulic control device and method for mounting rubber-plastic spring damping device of large coal mill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110706 Termination date: 20141108 |
|
| EXPY | Termination of patent right or utility model |