CN100540919C - Variable plunger pump system for drilling machine - Google Patents
Variable plunger pump system for drilling machine Download PDFInfo
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- CN100540919C CN100540919C CNB2007100475320A CN200710047532A CN100540919C CN 100540919 C CN100540919 C CN 100540919C CN B2007100475320 A CNB2007100475320 A CN B2007100475320A CN 200710047532 A CN200710047532 A CN 200710047532A CN 100540919 C CN100540919 C CN 100540919C
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- oil
- control valve
- valve
- plunger pump
- pressure
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Abstract
A kind of variable plunger pump system for drilling machine, comprise integrated control valve group, plunger pump, revolution motor and motor up and down, wherein said integrated control valve group is the chip valve, unidirectional regulation valve body, revolution motor control valve, motor control valve and the corresponding oil-hole location correspondence of one way pressure-reducing valve body up and down, make working connection and control oil channel UNICOM, form with each valve polyphone connection of key screw, be connected with pressure limiting flow control valve body with oil pipe, last and plunger pump links into an integrated entity.Advantage is: profile is a sheet, inner control spool and the corresponding oil circuit that various functions can be housed as required, the oil-hole location correspondence of each valve, compact structure is simple, and is in light weight, make easy to maintenance, plunger pump does not have pipeline with hydraulic system and is connected, and the integrated control valve spill port leads directly to the plunger pump oil inlet hole, has hydraulic power recovery effect, working connection cancellation relief valve and throttle valve hydraulic pressure losser, rig have good handling and stable.
Description
Technical field
The present invention relates to the rig plunger pump system, the Variable plunger pump that particularly a kind of rig is used.
Background technique
The various hydraulic control systems of using on the at present domestic and international rig, all drive oil hydraulic pump mechanical energy is converted into the pressure energy by power, by executive component pressure can be converted into mechanical energy again, in the transfer process by the control valve of various functions realize executive component (oil hydraulic motor, oil cylinder etc.) rotation, move up and down.These control valves (relief valve, throttle valve, proportional reversing valve etc.) in various degree have a loss hydraulic power, cause system's heating high, noise is big, and level of integration is not high, can't be system and being combined into one of pump, and connecting pipeline is many when forming system, volume is big, Heavy Weight, rate of fault height.Existing domestic disclosed patented technology, have common valve is collected simply is fitted together, and do not adopt volume variable technology.The manual proportional multi-path valve of the employing that has is connected with pipeline with variable displacement pump, and connecting pipeline is many, complex structure.Also has the practical problem that exists on the present rig, particularly go up operation at various complex-terrains (mountain region), often making a call to a hole will remove a position, for convenient removal is wanted resolving device, too much pipeline connects disassembles trouble, surrounding enviroment are also very easily by pipeline contaminated system and hydraulic oil, cause the damage of very easily breaking down of oil pump and valve.
Summary of the invention
Technical problem to be solved by this invention provides a kind of variable plunger pump system for drilling machine, adopt the chip valve arrangement, be concatenated into the integrated control valve group with each valve of key screw, it is whole that system and plunger pump are formed, plunger pump and control system are integrated, cancelled the connecting pipeline of plunger pump main valve, the oil inlet hole of the straight-through pump of the spill port of valve, fuel tank only plays the replenishment system leakage effects, reduced the fuel tank volume greatly, compact structure, volume is little, dismounting telephone-moving during greatly convenient resettlement reduces the telephone-moving surrounding enviroment to hydraulic system with to the pollution of fluid.
The present invention solves the problems of the technologies described above the technological scheme of being taked: the present invention adopts the chip valve arrangement, its profile is a sheet, and the control spool and the corresponding oil circuit of various functions, the oil-hole location correspondence of each valve are equipped with in inside, be connected in series with each valve body of key screw, make it be integrated into the control valve group.Rig of the present invention variable piston system, comprise integrated control valve group, plunger pump, revolution motor and motor up and down, be characterized in, described integrated control valve group is the chip valve, unidirectional regulation valve body, revolution motor control valve, motor control valve and the corresponding oil-hole location correspondence of one way pressure-reducing valve body up and down, make working connection and control oil channel and each valve oil chamber UNICOM, form with each valve polyphone connection of key screw, be connected with pressure limiting flow control valve body with oil pipe, last and plunger pump links into an integrated entity again.
Described pressure limiting flow control valve body is equipped with pressure-limit valve in it and flow control valve combines; Pressure-limit valve comprises pressure limiting spool and Returnning spring; Flow control valve comprises flow control spool and Returnning spring.
Described unidirectional regulation valve body is equipped with non-return one-way valve and modulating valve and combines in it, the one side has the oil inlet hole and the spill port of working connection, and opposite side has oil outlet and the spill port and the control oilhole of working connection.
Described revolution motor control valve and motor control valve up and down, the two structure is basic identical, comprise control valve body, control spool and Returnning spring, control valve body is provided with the control valve oil suction chamber, control valve oil-discharging cavity A, control valve oil-discharging cavity B, control valve oil back chamber and control valve control oil pocket, on the control spool, have according to the corresponding annular oil groove of oil pocket on control stroke and the control valve body, annular oil groove both sides on the corresponding control spool of control oil pocket axially respectively have a drift slot simultaneously, and there is the turnover oilhole of working connection the both sides of valve, spill port and control oilhole.
Described revolution motor control valve, its control valve oil-discharging cavity A (12) is connected with revolution motor by pipeline with control valve oil-discharging cavity B (13).
Described up and down motor control valve, its control valve oil-discharging cavity A (12) and control valve oil-discharging cavity B (13) are connected with motor up and down by pipeline.
Described one way pressure-reducing valve body is equipped with reduction valve and one-way valve in it, reduction valve comprises relief pressure valve cartridge and Returnning spring, and one-way valve comprises Returnning spring, and the one side has oil inlet hole, oil outlet, spill port.
Control valve oil inlet hole in the integrated control valve group is corresponding with plunger pump oil outlet and oil inlet hole position with spill port, and integrated control valve group and plunger pump are linked into an integrated entity with screw.
System pressure table, differential pressure gauge and drilling pressure table also are housed on variable plunger pump system for drilling machine.
Superior effect of the present invention is:
1, the present invention is the chip valve, its profile is a sheet, inner control spool and the corresponding oil circuit that various functions can be housed as required, the oil-hole location correspondence of each valve as long as string together fixingly with each valve of key screw, makes the integrated integral body of plunger pump and hydraulic control system, compact structure is simple, volume is little, and is in light weight, makes easy to maintenance.
2, plunger pump does not have pipeline with hydraulic system and is connected, and the oil inlet hole of the straight-through plunger pump of the spill port of integrated control valve has hydraulic power recovery effect, has cancelled hydraulic pressure lossers such as relief valve and throttle valve on the working connection, no restriction loss, and the efficient height, heating is less.
3, motor available hydraulic oil cylinder up and down of the present invention substitutes.
4, the integrated combination of hydraulic system of the present invention and plunger pump, during use, hydraulic fluid flow rate all is from small to large or a progressive formation from big to small, the startup of motor and stop not have and impact, it is good handling and stable that rig is had, the leap that compared with prior art has essence.
Description of drawings
Fig. 1 is a variable plunger pump system schematic diagram of the present invention.
Fig. 2 is a Variable plunger pump structural representation of the present invention.
Label declaration in the accompanying drawing
1-plunger pump 2-variable cylinder 201-swash plate
202-Returnning spring 3-pressure-limit valve 31-pressure limiting spool
32-Returnning spring 33-drilling pressure table 34-pressure limiting flow valve body
341-oil pipe 4-flow control valve 41-flow control spool
The unidirectional regulation valve body of the non-return one-way valve 56-of 42-Returnning spring 5-
6-modulating valve 7-revolution motor control valve 8-is motor control valve up and down
9-control valve body 10-control spool 11-control valve oil suction chamber
12-control valve oil-discharging cavity A 13-control valve oil-discharging cavity B
14-control valve oil back chamber 15-control valve control oil pocket
16-drift slot 17-Returnning spring 18-one way pressure-reducing valve body
19-reduction valve 20-one-way valve 21-revolution motor
22-is motor 23-fuel tank 24-integrated control valve group up and down
25-working connection 251-system pressure table 26-control oil channel
261-differential pressure gauge 27-oil outlet 28-oil inlet hole
29-oil inlet hole 30-spill port
Embodiment
Below in conjunction with accompanying drawing structure of the present invention is further described.
See also shown in Fig. 1,2, the present invention links into an integrated entity with plunger pump by after the chip valve combination again, by plunger pump 1, variable cylinder 2, pressure-limit valve 3, flow control valve 4, non-return one-way valve 5, modulating valve 6, revolution motor control valve 7, up and down motor control valve 8, reduction valve 19, one-way valve 20, revolution motor 21 and up and down motor 22 form.
Wherein, pressure-limit valve 3 and flow control valve 4 are installed in the pressure limiting flow valve body 34, and pressure-limit valve 3 is made up of pressure limiting spool 31 and Returnning spring 32; Flow control valve 4 is made up of flow control spool 41 and Returnning spring 42; Non-return one-way valve 5 and modulating valve 6 are installed in the unidirectional regulation valve body 56; Reduction valve 19 and one-way valve 20 are installed in the one way pressure-reducing valve body 18;
Described revolution motor control valve 7 and motor control valve 8 up and down, the two structure is basic identical, comprise control valve body 9, control spool 10 and Returnning spring 17, control valve body 9 is provided with control valve oil suction chamber 11, control valve oil-discharging cavity A 12, control valve oil-discharging cavity B 13, control valve oil back chamber 14 and control valve control oil pocket 15, on control spool 10, have according to the corresponding annular oil groove of oil pocket on control stroke and the control valve body 9, annular oil groove both sides on the corresponding control spool of control oil pocket axially respectively have a drift slot 16 simultaneously, and there is the turnover oilhole of working connection the both sides of valve, spill port and control oilhole.
The present invention adopts the chip valve arrangement, its profile is a sheet, the oil-hole location correspondence of each valve, be in serial connected with each valve of key screw, promptly unidirectional regulation valve body 56, revolution motor control valve 7, motor control valve 8 and one way pressure-reducing valve body 18 corresponding position correspondences up and down, make working connection 25 and control oil channel 26 and each valve oil chamber UNICOM, be concatenated into integrated control valve group 24 with each valve of key screw, be connected with pressure limiting flow valve body 34 with oil pipe 341 again, oil inlet hole 28 in the integrated control valve group 24, oil outlet 27 on spill port 30 and the plunger pump 1, oil inlet hole 29 positions are corresponding, link into an integrated entity with key screw integrated control valve group 24 and plunger pump 1.Spill port 30 on the integrated control valve group 24 directly facing to the oil inlet hole 29 on the plunger pump 1, has the Power Recovery effect, and 23 of fuel tanks play the repairing effect that oil circuit leaks.System pressure table 251, differential pressure gauge 261, drilling pressure table 33 also are housed on the variable plunger pump system for drilling machine of the present invention.
Working procedure
The operation of revolution motor:
Before the work, the handle of revolution motor control valve 7 is in meta, working connection 25 is closed, control oil channel 26 is opened, this moment, ato unit drove plunger pump 1 running, seldom a part of pressure oil is arranged to control oil channel 26 fuel feeding, because the damping function of modulating valve 6, produce bigger pressure difference signal at these two ends, this signal is added in flow control valve 4 two ends, and flow control spool 41 is moved, and is directed at partly pressure oil entering variable cylinder 2, promote swash plate 201 (Fig. 2) angle to zero, plunger pump 1 is not to working connection 25 oil extractions.Pull handle position this moment to the right, move the corresponding left position of the control spool 10 of revolution motor control valve 7, at first the conducting working connection 25, the drift slot of controlling simultaneously on the spool 10 16 plays damping function and increasing in control oil channel 26, modulating valve 6 to the pressure of 7 of revolution motor control valves raises, the pressure difference at modulating valve 6 two ends reduces, the pressure difference at flow control valve 4 two ends also reduces, flow control spool 41 is moved, pressure oil to entering variable cylinder 2 reduces, swash plate 201 increases at Returnning spring 202 effect lower angles, and plunger pump 1 increases to working connection 25 oil extractions.This moment, working connection 25 was opened, pressure oil is pushed non-return one-way valve 5 open and is entered control valve oil suction chamber 11, be connected to revolution motor 21 by the road by control valve oil-discharging cavity B 13, promote revolution motor 21 runnings, oil return is connected to control valve oil-discharging cavity A 12 by the road again by the oil inlet hole 29 of control valve oil back chamber 14 to plunger pump 1.When pulling handle to terminal point, drift slot 16 on the control spool 10 is closed control oil channel 25, this moment, modulating valve 6 pressure at two ends equated, pressure difference is zero, and flow control valve 4 pressure at two ends differences also are zero, under spring action, flow control spool 41 also moves to end points, and variable cylinder 2 right chambeies are connected with oil circuit, and swash plate 201 also reaches maximum angle, plunger pump 1 reaches maximum pump discharge (can set), and revolution motor 21 also reaches maximum speed.When pulling handle round about, also produce same variable effect, just revolution motor control valve 7 to the pressure oil direction of revolution motor 21 also changes on the working connection 25, and revolution motor 21 moves round about simultaneously.
The operation of motor up and down:
Before the work, the handle of motor control valve 8 is in meta up and down, working connection 25 is closed, control oil channel 26 is opened, this moment, ato unit drove plunger pump 1 running, seldom a part of pressure oil is arranged to control oil channel 26 fuel feeding, because the damping function of modulating valve 6, produce bigger pressure difference signal at these two ends, this signal is added in flow control valve 4 two ends, and flow control spool 41 is moved, and is directed at partly pressure oil entering variable cylinder 2, promote swash plate 201 (Fig. 2) angle to zero, plunger pump 1 is not to working connection 25 oil extractions.Pull handle position this moment to the right, move the corresponding left position of the control spool 10 of motor control valve 8 up and down, at first the conducting working connection 25, the drift slot of controlling simultaneously on the spool 10 16 plays damping function and increasing in control oil channel 26, the pressure that modulating valve 6 supreme motor control valves down are 8 raises, the pressure difference at modulating valve 6 two ends reduces, the pressure difference at flow control valve 4 two ends also reduces, flow control spool 41 is moved, pressure oil to entering variable cylinder 2 reduces, swash plate 201 increases at Returnning spring 202 effect lower angles, and plunger pump 1 increases to working connection 25 oil extractions.This moment, working connection 25 was opened, pressure oil is pushed non-return one-way valve 5 open and is entered control valve oil suction chamber 11, be connected to up and down motor 22 by control valve oil-discharging cavity B 13 more by the road to reduction valve 19, promote motor 22 runnings up and down, oil return is connected to control valve oil-discharging cavity A 12 by the road and passes through oil back chamber 14 again to plunger pump oil inlet hole 29.When pulling handle to terminal point, drift slot 16 on the control spool 10 is closed control oil channel 26, this moment, modulating valve 6 pressure at two ends equated, pressure difference is zero, and flow control valve 4 pressure at two ends differences also are zero, under spring action, flow control spool 41 also moves to end points, and variable cylinder 2 right chambeies are connected with oil circuit, and swash plate 201 also reaches maximum angle, plunger pump 1 reaches maximum pump discharge (can set), and motor 22 also reaches maximum speed up and down.When pulling handle round about, also produce same variable effect, just on the working connection 25 up and down the motor control valve 7 supreme pressure oil directions of motor 22 down also change, motor 22 moves round about up and down simultaneously.The oil return of motor 22 is back to the control valve oil-discharging cavity B13 of motor control valve 8 up and down through one-way valve 20 up and down, passes through oil back chamber 14 again to plunger pump oil inlet hole 29.The pressure adjustment and return fast lifting and use when creeping into of reduction valve 19, one-way valve 20.
The pressure of system is set:
When system works pressure surpasses the value that pressure-limit valve 3 is set, partly pressure oil promotes pressure limiting spool 31 and moves, and to another pressure oil entering variable cylinder 2 right chambeies partly, promotes swash plate 201 to zero, and plunger pump 1 is to system's oil extraction, protective system safety.Below as can be seen, the rig everything only depends on the position of two handles, finishes the speed change of clockwise and anticlockwise and knee-action and course of action, manipulation and simple.
Claims (9)
1, a kind of variable plunger pump system for drilling machine comprises integrated control valve group, plunger pump, pressure limiting flow control valve body, it is characterized in that:
Described integrated control valve group is the chip valve, unidirectional regulation valve body (56), revolution motor control valve (7), the corresponding oil-hole location correspondence of motor control valve (8) and one way pressure-reducing valve body (18) up and down, make working connection (25) and control oil channel (26) and each valve oil chamber UNICOM, form with each valve polyphone connection of key screw, oil inlet hole (28) on the unidirectional modulating valve (56), spill port (30) is corresponding with oil outlet (27) and oil inlet hole (29) on the plunger pump (1) respectively, and link into an integrated entity with key screw integrated control valve group and plunger pump (1), on plunger pump (1) housing pressure limiting flow control valve body (34) is installed, pressure limiting flow control valve body (34) is connected with the integrated control valve group with oil pipe (341); Wherein, hydraulic oil is flowed through from the oil outlet (27) on the plunger pump (1), and oil inlet hole (28) on the unidirectional regulation valve body (56) is laggard goes into working connection (25), enters each oilhole of revolution motor control valve oil pocket (11) and control valve control oil pocket (15) and the spill port of oil back chamber (14) and the oil inlet hole (29) that the spill port (30) on the unidirectional regulation valve body (56) flows into plunger pump (1) again of control oil channel (26) from unidirectional regulation valve body (56) left side oil outlet; The spill port of each oilhole of the oil suction chamber (11) on motor control valve up and down (8) right side in the left side of revolution motor control valve (7) and the control valve of control oil channel (26) control oil pocket (15) and oil back chamber (14) links to each other, the oil drainage hole on motor control valve (8) left side and oil-discharging cavity (13) UNICOM up and down, and with the one way pressure-reducing valve body (18) in left side on oil inlet hole and the corresponding UNICOM of the same oil back chamber of spill port (14), its oil return and revolution motor control valve spill port (30) communicate with plunger pump (1) oil inlet hole (29).
2, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
Described pressure limiting flow control valve body (34) is equipped with pressure-limit valve (3) in it and flow control valve (4) combines; Pressure-limit valve (3) comprises pressure limiting spool (31) and Returnning spring (32); Flow control valve (4) comprises flow control spool (41) and Returnning spring (42).
3, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
Described unidirectional regulation valve body (56), non-return one-way valve (5) is housed in it and modulating valve (6) combines, the one side has the oil inlet hole (28) and the spill port (30) of working connection, and opposite side has the oil outlet of working connection (25) to enter the spill port and the control oilhole of revolution motor control valve oil suction chamber (11) and revolution motor control valve oil back chamber (14).
4, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
Described revolution motor control valve (7) and motor control valve (8) up and down, the two structure is basic identical, comprise control valve body (9), control spool (10) and Returnning spring (17), control valve body (9) is provided with control valve oil suction chamber (11), control valve oil-discharging cavity A (12), control valve oil-discharging cavity B (13), control valve oil back chamber (14) and control valve control oil pocket (15), having on the control spool (10) according to the corresponding annular oil groove of oil pocket on control stroke and the control valve body (9), simultaneously the annular oil groove both sides on the corresponding control spool of control valve control oil pocket (15) axially respectively have a drift slot (16), revolution motor control valve (7) and up and down the both sides of motor control valve (8) the turnover oilhole of working connection (25) control valve oil suction chamber (11) is arranged, the control oilhole of the spill port of oil back chamber (14) and control oil pocket (15).
5, according to claim 1 or 4 described variable plunger pump system for drilling machine, it is characterized in that:
Described revolution motor control valve (7), wherein control valve oil-discharging cavity A (12) is connected with revolution motor (22) by pipeline with control valve oil-discharging cavity B (13).
6, according to claim 1 or 4 described variable plunger pump system for drilling machine, it is characterized in that:
Described motor control valve (8) up and down, wherein control valve oil-discharging cavity A (12) is connected with revolution motor (22) by pipeline with control valve oil-discharging cavity B (13).
7, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
Described one way pressure-reducing valve body (18) is equipped with reduction valve (19) and one-way valve (20) in it, reduction valve (19) comprises relief pressure valve cartridge and Returnning spring, and one-way valve (20) comprises Returnning spring, and the one side has oil inlet hole, oil outlet, spill port.
8, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
Revolution motor control valve (7) oil inlet hole (28) in the integrated control valve group (24) and the oil inlet hole (28) of unidirectional modulating valve (56) are corresponding with plunger pump oil outlet (27) and oil inlet hole (29) position with spill port (30), and integrated control valve group (24) and plunger pump (1) are linked into an integrated entity with screw.
9, variable plunger pump system for drilling machine according to claim 1 is characterized in that:
System pressure table (251), differential pressure gauge (261) and drilling pressure table (33) also are housed on variable plunger pump system for drilling machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100475320A CN100540919C (en) | 2007-10-29 | 2007-10-29 | Variable plunger pump system for drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100475320A CN100540919C (en) | 2007-10-29 | 2007-10-29 | Variable plunger pump system for drilling machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101144494A CN101144494A (en) | 2008-03-19 |
| CN100540919C true CN100540919C (en) | 2009-09-16 |
Family
ID=39207177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100475320A Expired - Fee Related CN100540919C (en) | 2007-10-29 | 2007-10-29 | Variable plunger pump system for drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100540919C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644287B (en) * | 2009-06-11 | 2011-11-16 | 佛山市顺德区必乐士液压机械有限公司 | Electromagnetic switching double-displacement pump |
| CN114810533A (en) * | 2022-03-30 | 2022-07-29 | 杭州力龙液压有限公司 | Control valve group, tool, hydraulic pump, control valve group assembling method and engineering machinery |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416189A (en) * | 1982-06-21 | 1983-11-22 | Caterpillar Tractor Co. | Fully compensated fluid control valve |
-
2007
- 2007-10-29 CN CNB2007100475320A patent/CN100540919C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416189A (en) * | 1982-06-21 | 1983-11-22 | Caterpillar Tractor Co. | Fully compensated fluid control valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101144494A (en) | 2008-03-19 |
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Granted publication date: 20090916 Termination date: 20101029 |