CN202360104U - Open type hydraulic system driving screw conveyer on miniature shield machine - Google Patents
Open type hydraulic system driving screw conveyer on miniature shield machine Download PDFInfo
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- CN202360104U CN202360104U CN2011203570028U CN201120357002U CN202360104U CN 202360104 U CN202360104 U CN 202360104U CN 2011203570028 U CN2011203570028 U CN 2011203570028U CN 201120357002 U CN201120357002 U CN 201120357002U CN 202360104 U CN202360104 U CN 202360104U
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- open type
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- type hydraulic
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Abstract
The utility model discloses an open type hydraulic system driving a screw conveyer on a miniature shield machine. The open type hydraulic system successively includes a hydraulic plunger pump, a proportion flow valve, a non return valve, a high pressure oil filter, an electromagnetic reversing valve, and a variable motor through hydraulic pipelines. The hydraulic plunger pump driven by a three-phase motor is provided with an inlet pipe entering into an oil tank after passing through a ball valve and an oil suction filter in order, two branches are arranged between the high pressure oil filter and the electromagnetic reversing valve, an electromagnetic reversing valve and two parallel overflow valves are successively connected on one of the branches, and the outlet of the overflow valve returns to the oil tank after passing by an air-cooled motor and an oil return filter in order. The open type hydraulic system is advantageous in that the main hydraulic loop adopts an open type hydraulic loop and is provided with two types of main oil way pressure to adapt to two conditions of normal and relieving; The rotating speed of the screw conveyer is finally adjusted by adjusting the proportion flow valve to meet the needs in complex conditions.
Description
Technical field
The utility model relates to a kind of hydraulic system, the open type hydraulic system of conveying worm on particularly a kind of driving shield machine.
Background technology
Shield excavation machine is a kind of complex electromechanical systems that is used for the subterranean tunnel engineering excavation, has out functions such as the control cutting soil body, conveying soil quarrel, assembly unit tunnel lining, the correction of measurement guiding.And present small-sized shield machine shield excavation machine has bigger demand on engineerings such as municipal drainage pipeline, communication power cable engineering, oil and gas pipeline; Have that excavation speed is fast, quality is high, personnel labor intensity is little, safe, to advantage such as ground settlement and ambient influnence be little; The traditional drilling and blasting method constructing tunnel that compares has remarkable advantages, and good comprehensive benefit is arranged.
In balancing earth-pressure shielding machine; Conveying worm is discharged the shield body with the earth that knife cutting in the native storehouse gets off with certain rotating speed; In practical application, need to control in real time, exactly the rotating speed of conveying worm, to realize native storehouse pressure and excavation face water, soil pressure equilibrium of forces according to native storehouse pressure.But in existing balancing earth-pressure shielding machine, all do not have such function, can not satisfy instructions for use well.
The utility model content
The goal of the invention of the utility model is, a kind of open type hydraulic system by the conveying worm driving that is used for shield machine is provided, and can solve the technical need of existing small-sized shield machine.
The technical scheme that the utility model adopts is such: a kind of open type hydraulic system that drives conveying worm on the small-sized shield machine; Comprise the hydraulic planger pump, one way valve, hydraulic oil filter, solenoid operated directional valve and the variable displacement motor that connect successively; Said hydraulic planger pump is driven by a three phase electric machine; Its oil inlet pipe is successively through getting into fuel tank after ball valve and the filter of oil suction oil; Between said hydraulic oil filter and the solenoid operated directional valve two branch roads are arranged, wherein be connected with a solenoid operated directional valve and two overflow valves arranged side by side in order on a branch road, the flowline of said overflow valve is successively through getting back to fuel tank after ventilated machine and the filter of oil return oil.
As optimal way, be connected with proportional flow control valve between said one way valve and the hydraulic planger pump.
As optimal way, the pipeline between said one way valve and the hydraulic oil filter is provided with pressure transmitter.
In sum, owing to adopted technique scheme, the beneficial effect of the utility model is: main hydraulic circuit adopts open circuit, and is provided with two kinds of working connection pressure to adapt to normal and the two kinds of operating modes of getting rid of poverty through the switching of solenoid operated directional valve; Come the rotating speed of the final adjustable screw conveyer of discharge capacity of regulated variable motor through regulating proportional flow control valve, thereby satisfy the needs under the complex working condition.
Description of drawings
Fig. 1 is the systematic schematic diagram of the utility model.
Mark among the figure: 1 is hydraulic planger pump, and 1-1 is a ball valve, and 1-2 is the filter of oil suction oil, and 1-3 is a three phase electric machine; 1-4 is a proportional flow control valve, and 2 is one way valve, and 3 is pressure transmitter, and 4 are the hydraulic oil filter; 5 is solenoid operated directional valve, and 6 is overflow valve, and 7 is variable displacement motor, and 8 is conveying worm; 9 is ventilated machine, and 10 are the filter of oil return oil, and 11 is fuel tank.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
As shown in Figure 1; A kind of open type hydraulic system that drives conveying worm on the small-sized shield machine; Comprise the hydraulic planger pump 1, one way valve 2, hydraulic oil filter 4, solenoid operated directional valve 5 and the variable displacement motor 7 that connect successively; Said hydraulic planger pump 1 is driven by a three phase electric machine 1-3; Its oil inlet pipe is successively through getting into fuel tank 11 after ball valve 1-1 and the oil suction oil filter 1-2; Between said hydraulic oil filter 4 and the solenoid operated directional valve 5 two branch roads are arranged, wherein be connected with a solenoid operated directional valve 5 and two overflow valves arranged side by side 6 (pressure of these two overflow valves 6 is set at 12MPa and 29.5MPa respectively) in order on a branch road, the flowline of said overflow valve 6 is got back to fuel tank 11 after filtering 10 through ventilated machine 9 and oil return oil successively.
In the present embodiment, be connected with proportional flow control valve 1-4 between said one way valve 2 and the hydraulic planger pump 1.Pipeline between said one way valve 2 and the hydraulic oil filter 4 is provided with pressure transmitter 3.
In fuel tank 11, also be provided with temperature transmitter, air filter, fluid level transmitter and content gauge.Situation such as the temperature of the fluid in the mailbox 11, liquid level are carried out omnibearing immediately monitoring.Temperature pick up and fluid level transmitter are imported the liquid level controller with signal.Three phase electric machine 1-3 links to each other with the level control relay that is arranged at fuel tank 11 interior low liquid level warning points, and the folding of this level control relay is controlled by the liquid level controller.In system oil temperature >=80 ℃, when liquid level is reduced to low liquid level warning point, the liquid level controller sends control signal, and level control relay breaks off, and three phase electric machine 1-3 quits work, to protect whole system.
The parameter of three phase electric machine 1-3: 30 kw, 1480r/min; The parameter of hydraulic planger pump 1: 28ml/r, 35MPa adopts constant voltage control; The parameter of variable displacement motor 7: 55ml/r, 35MPa adopts the two point form electrical control; The conveying rotating speed that conveying worm 8 is external: 0～14 r/min is adjustable.
Conveying worm 8 is connected with variable displacement motor 7; Its rotating speed is adjustable at 0～14 r/min; In output speed is 0～5r/min scope, variable displacement motor 7 is adjusted to big discharge capacity, through regulating the output flow size of proportional throttle valve 1-4 change hydraulic planger pump 1; Reach the adjusting of rotating speed, this moment, output torque was for can reach maximum working torque 30KN.m; In 5～14r/min scope, regulated variable motor 7 is little discharge capacity, and output services moment of torsion maximum can reach 11.46 KN.m.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection domain of the utility model.
Claims (3)
1. open type hydraulic system that drives conveying worm on the small-sized shield machine; It is characterized in that: comprise the hydraulic planger pump (1), one way valve (2), hydraulic oil filter (4), solenoid operated directional valve (5) and the variable displacement motor (7) that connect successively; Said hydraulic planger pump (1) is driven by a three phase electric machine (1-3); Its oil inlet pipe gets into fuel tank (11) through ball valve (1-1) and oil suction oil filter (1-2) successively afterwards; Between said hydraulic oil filter (4) and the solenoid operated directional valve (5) two branch roads are arranged; Wherein be connected with a solenoid operated directional valve (5) and two overflow valves arranged side by side (6) in order on a branch road, the flowline of said overflow valve (6) is got back to fuel tank (11) through ventilated machine (9) and oil return oil filter (10) successively afterwards.
2. a kind of open type hydraulic system that drives conveying worm on the small-sized shield machine according to claim 1 is characterized in that: be connected with proportional flow control valve (1-4) between said one way valve (2) and the hydraulic planger pump (1).
3. a kind of open type hydraulic system that drives conveying worm on the small-sized shield machine according to claim 1 and 2 is characterized in that: the pipeline between said one way valve (2) and the hydraulic oil filter (4) is provided with pressure transmitter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203570028U CN202360104U (en) | 2011-09-22 | 2011-09-22 | Open type hydraulic system driving screw conveyer on miniature shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203570028U CN202360104U (en) | 2011-09-22 | 2011-09-22 | Open type hydraulic system driving screw conveyer on miniature shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360104U true CN202360104U (en) | 2012-08-01 |
Family
ID=46571295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203570028U Expired - Fee Related CN202360104U (en) | 2011-09-22 | 2011-09-22 | Open type hydraulic system driving screw conveyer on miniature shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360104U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373932A (en) * | 2011-09-22 | 2012-03-14 | 南车资阳机车有限公司 | Open-type hydraulic system for driving screw conveyer on miniature shield machine |
| CN109968226A (en) * | 2019-05-14 | 2019-07-05 | 四川工程职业技术学院 | A kind of hydraulic clamp vice |
-
2011
- 2011-09-22 CN CN2011203570028U patent/CN202360104U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102373932A (en) * | 2011-09-22 | 2012-03-14 | 南车资阳机车有限公司 | Open-type hydraulic system for driving screw conveyer on miniature shield machine |
| CN109968226A (en) * | 2019-05-14 | 2019-07-05 | 四川工程职业技术学院 | A kind of hydraulic clamp vice |
| CN109968226B (en) * | 2019-05-14 | 2024-05-10 | 四川工程职业技术大学 | Hydraulic clamping vice |
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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: 20120801 Termination date: 20150922 |
|
| EXPY | Termination of patent right or utility model |