CN201746869U - Constant tension control system of hydraulic rotary table - Google Patents
Constant tension control system of hydraulic rotary table Download PDFInfo
- Publication number
- CN201746869U CN201746869U CN2009202775771U CN200920277577U CN201746869U CN 201746869 U CN201746869 U CN 201746869U CN 2009202775771 U CN2009202775771 U CN 2009202775771U CN 200920277577 U CN200920277577 U CN 200920277577U CN 201746869 U CN201746869 U CN 201746869U
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- control system
- main pump
- tension control
- constant tension
- swivel head
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Abstract
The utility model relates to a constant tension control system of a hydraulic rotary table used for driving one or more hydraulic rotary table motors mutually connected in parallel, which comprises an oil tank, a main pump and a sequence valve, wherein the main pump is connected with the oil tank and provides oil pressure power for the motors; and the sequence valve is connected with a pressure measuring oil port of the main pump and a variable cavity pressure oil port. The constant tension control system of the hydraulic rotary table can ensure that the hydraulic rotary table has constant output tension and flexible winding speed, can automatically adjust the speed along with the requirement of load, meets the need of working conditions, reduces the power loss, and is simple and practical.
Description
Technical field
The utility model relates to a kind of engineering machinery hydraulic rotating disk control field, particularly a kind ofly is used to control diaphragm wall and grabs the hydralic hose rotating disk of scouring machine and the hydraulic swivel head constant tension control system of cable drum.
Background technology
Existing hydraulic swivel head control system, it is pure overflow control system, its high pressurized overflow by overflow valve is realized permanent tension force control, though can play the effect of automatic control hydraulic swivel head, but flooding process will produce very big heat, thereby make system heating and cause the waste of energy, and the adjustment process action is too fast, soft inadequately, shortened service life of equipment.
This shows that above-mentioned existing hydraulic swivel head control system obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.How to develop a kind of hydraulic swivel head that can guarantee and have constant output tension force, can guarantee that again hydraulic swivel head has flexible speed of wrap, can be along with the automatic governing speed of the requirement of load, satisfy the demand of operating mode, reduce the loss of power, and simple and practical new type hydraulic rotating disk constant tension control system is the target of the current important improvement in this area.
The utility model content
The purpose of this utility model is, overcome the defective that existing hydraulic swivel head control system exists, and provide a kind of hydraulic swivel head constant tension control system of new structure, technical problem to be solved is to make it can guarantee that hydraulic swivel head has constant output tension force, can guarantee that again hydraulic swivel head has flexible speed of wrap, can satisfy the demand of operating mode along with the automatic governing speed of the requirement of load, reduce the loss of power, thereby be suitable for practicality more.
The purpose of this utility model and to solve its technical problem be to adopt following technical scheme to realize.According to a kind of hydraulic swivel head constant tension control system that the utility model proposes, be used to drive one or more hydraulic swivel head motors parallel with one another, comprise fuel tank, main pump and sequence valve, wherein: main pump is connected with fuel tank, and provides oil pressure power for motor; Sequence valve is connected in the pressure measurement hydraulic fluid port and the variable cavity pressure hydraulic fluid port of main pump.
The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.
Aforesaid hydraulic swivel head constant tension control system also comprises and the variable cavity pressure hydraulic fluid port of main pump, the overflow valve that the tank drainback mouth is connected.
Aforesaid hydraulic swivel head constant tension control system also comprises with fuel tank the auxiliary pump that is connected, replenishes hydraulic oil to main pump.
Aforesaid hydraulic swivel head constant tension control system, described main pump are the enclosed pump.
Aforesaid hydraulic swivel head constant tension control system, described main pump are the enclosed Variable plunger pump.
Aforesaid hydraulic swivel head constant tension control system also is connected with return filter near the oil return opening of described fuel tank.
Aforesaid hydraulic swivel head constant tension control system, described motor are three.
In sum, the utility model hydraulic swivel head constant tension control system, can guarantee that hydraulic swivel head has constant output tension force, can guarantee that again hydraulic swivel head has flexible speed of wrap, can be along with the automatic governing speed of the requirement of load, satisfy the demand of operating mode, reduce the loss of power, and simple and practical.The utlity model has above-mentioned plurality of advantages and practical value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing hydraulic swivel head control system has the effect of enhancement, thereby is suitable for practicality more.
Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of manual, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
Fig. 1 is the hydraulic schematic diagram of the utility model hydraulic swivel head constant tension control system.
The specific embodiment
For further setting forth the utility model is to reach technological means and the effect that predetermined utility model purpose is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its specific embodiment of hydraulic swivel head constant tension control system, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.
See also shown in Figure 1ly, the utility model hydraulic swivel head constant tension control system is used to drive one or more hydraulic swivel head motors 9 parallel with one another, comprises fuel tank 1, main pump 2 and sequence valve 3.Preferable, also can comprise overflow valve 4, and be connected near the return filter 5 fuel tank 1 oil return opening, with main pump 2 one, be connected in fuel tank 1 and replenish the auxiliary pump of hydraulic oil to main pump 2.
Wherein, main pump 2 preferred enclosed pump, most preferably enclosed Variable plunger pumps.Main pump 2 is connected with fuel tank 1, and provides oil pressure power for motor 9.Specifically, the control port 21,22 of main pump 2 is connected with the hydraulic fluid port 91,92 of motor respectively, and the oil-in 23 of main pump 2 connects with the oil-out of fuel tank 1, and the drain tap 24 of main pump is connected with the oil return opening of fuel tank 1.
Sequence valve 3 is connected in the pressure measurement hydraulic fluid port 25 and the variable cavity pressure hydraulic fluid port 26 of main pump 2.Pressure measurement hydraulic fluid port 25 has been isolated the normal pressure from system, when the oil pressure of pressure measurement hydraulic fluid port 25 changes, sequence valve 3 is unlocked, thereby the servo-cylinder of control main pump 2, regulate the swash plate pivot angle direction and the angular dimension of main pump 2, further control the speed and the direction of motor 9, for motor 9 provides constant pressure in the same way.
During work, the solenoid operated directional valve of main pump 2 all the time electric, give motor 9 all the time towards the flow pressure of a direction, because the pressure that main pump 2 is set is to set according to the concrete parameter of hydraulic swivel head, this pressure is constant, and this power will keep the hydraulic swivel head sebific duct to be in exceptionally straight state.If the speed of some motors is slow excessively when promoting, when sebific duct or cable generation discrepancy, the backrush on permanent tension force effect is got down from horse of this motor, thus the part that disconnects is recovered, reach synchronous requirement.
When weight is anti-when dragging motor 9, motor 9 excessive pressure will promote servo-cylinder and change the swash plate direction, make main pump 2 oppositely fuel-displaced, to satisfy the requirement that sebific duct is transferred.When stopping, because motor 9 is given in main pump 2 oil transportation always, another working chamber oil pressure of motor 9 raises, the pressure of pressure measurement hydraulic fluid port 25 increases, and sequence valve 3 is opened, and hydraulic oil enters servo-cylinder, reduce the swash plate pivot angle, the output flow of main pump 2 is reduced, tend to be steady until pressure.
Overflow valve 4 is connected with the variable cavity pressure hydraulic fluid port 26 of main pump 2, the oil return opening of fuel tank 1, is used for the hydraulic fluid pressure of restriction in the servo-cylinder of main pump 2.When servo-cylinder pressure was big, overflow valve 4 was opened, and hydraulic oil is back to fuel tank 1 through overflow valve 4, thereby can prevent effectively that excessive pressure from acting on servo-cylinder.
The utility model hydraulic swivel head constant tension control system can be controlled the turntable motor of three parallel connections as shown in the figure, also can control more or less motor according to actual needs simultaneously automatically.The utility model is by contrast detected operating pressure of sequence valve and predefined pressure (being permanent tension force), and when being lower than setting pressure, the swash plate of main pump is not subjected to the influence of external control oil pressure, and rotating disk is with big rotation speed operation; When operating pressure surpasses preset pressure; promote servo-cylinder; the swash plate that makes main pump is towards the deflection of low discharge direction; not damaged by high pressure by overflow valve protection servo-cylinder simultaneously; thereby the motor that had both guaranteed hydraulic swivel head has in the running towards the constant-tension of a rotation direction; can carry out flexibility adjusting automatically to the direction and the speed of hydraulic swivel head again, and not be subjected to the influence of motor load and rotating speed.The utility model has realized that the closed loop of control system controls automatically, and how many flow main pumps are system need just provide how many flows, do not have the problem of the overflow of big flow, avoided waste, are more suitable for industry and extensively promote the use of.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, any those skilled in the art, make a little change or be modified to the equivalent embodiment of equivalent variations when the technology contents that can utilize above-mentioned announcement, all still belong in the scope of technical solutions of the utility model.
Claims (7)
1. a hydraulic swivel head constant tension control system is characterized in that comprising fuel tank, main pump and sequence valve, wherein:
Main pump is connected with fuel tank, and provides oil pressure power for motor;
Sequence valve is connected in the pressure measurement hydraulic fluid port and the variable cavity pressure hydraulic fluid port of main pump.
2. hydraulic swivel head constant tension control system according to claim 1 is characterized in that also comprising and the variable cavity pressure hydraulic fluid port of main pump, the overflow valve that the tank drainback mouth is connected.
3. hydraulic swivel head constant tension control system according to claim 1 is characterized in that also comprising with fuel tank the auxiliary pump that is connected, replenishes hydraulic oil to main pump.
4. hydraulic swivel head constant tension control system according to claim 1 is characterized in that described main pump is the enclosed pump.
5. hydraulic swivel head constant tension control system according to claim 1 is characterized in that described main pump is the enclosed Variable plunger pump.
6. hydraulic swivel head constant tension control system according to claim 1 is characterized in that also being connected with return filter near the oil return opening of described fuel tank.
7. according to the described hydraulic swivel head constant tension control system of the arbitrary claim of claim 1-6, it is characterized in that described motor is three.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202775771U CN201746869U (en) | 2009-12-23 | 2009-12-23 | Constant tension control system of hydraulic rotary table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202775771U CN201746869U (en) | 2009-12-23 | 2009-12-23 | Constant tension control system of hydraulic rotary table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201746869U true CN201746869U (en) | 2011-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202775771U Expired - Fee Related CN201746869U (en) | 2009-12-23 | 2009-12-23 | Constant tension control system of hydraulic rotary table |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201746869U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756952A (en) * | 2012-06-28 | 2012-10-31 | 三一重工股份有限公司 | Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine |
| CN102878142A (en) * | 2012-10-31 | 2013-01-16 | 南通润邦重机有限公司 | Constant-tension proportional hydraulic valve group |
| CN103204402B (en) * | 2013-03-12 | 2015-08-05 | 宝鸡石油机械有限责任公司 | Continuous-tube tensile force control system |
| CN109502494A (en) * | 2017-09-14 | 2019-03-22 | 上海中车艾森迪海洋装备有限公司 | A kind of deep-sea drawing cable hydraulic system |
-
2009
- 2009-12-23 CN CN2009202775771U patent/CN201746869U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756952A (en) * | 2012-06-28 | 2012-10-31 | 三一重工股份有限公司 | Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine |
| CN102756952B (en) * | 2012-06-28 | 2015-03-25 | 三一重工股份有限公司 | Hydraulic reel-pipe control system, continuous wall grab bucket and chambering drilling machine |
| CN102878142A (en) * | 2012-10-31 | 2013-01-16 | 南通润邦重机有限公司 | Constant-tension proportional hydraulic valve group |
| CN103204402B (en) * | 2013-03-12 | 2015-08-05 | 宝鸡石油机械有限责任公司 | Continuous-tube tensile force control system |
| CN109502494A (en) * | 2017-09-14 | 2019-03-22 | 上海中车艾森迪海洋装备有限公司 | A kind of deep-sea drawing cable hydraulic system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20121223 |