CN103032394A - Hydraulic system of pipe rolling device and rotary-excavating drilling machine - Google Patents
Hydraulic system of pipe rolling device and rotary-excavating drilling machine Download PDFInfo
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- CN103032394A CN103032394A CN2012105720194A CN201210572019A CN103032394A CN 103032394 A CN103032394 A CN 103032394A CN 2012105720194 A CN2012105720194 A CN 2012105720194A CN 201210572019 A CN201210572019 A CN 201210572019A CN 103032394 A CN103032394 A CN 103032394A
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Abstract
The invention discloses a hydraulic system of a pipe rolling device and a rotary-excavating drilling machine. The hydraulic system is characterized in that an oil inlet of a main valve is connected with a hydraulic source; an oil return port is connected with an oil-return path; a first working oil port is connected with the free oil inlet end of a one-way balance valve; the free oil outlet end of the one-way balance valve is connected with a lifting oil port; a second working oil port is connected with a lowering oil port of a motor of the pipe rolling device; the hydraulic control end of the one-way balance valve is connected onto an oil path between the second working oil port and the lowering oil port; an oil inlet of a first overflowing valve is connected onto an oil path between the first working oil path and the free oil inlet end, and an overflowing port of the first overflowing valve is connected with an oil path between the second working oil port and the lowering oil port; an oil inlet of a second overflowing valve is connected onto an oil path between the free oil outlet end and the lifting oil port, and an overflowing port of the second overflowing valve is connected onto an oil path between the second working oil port and the lowering oil port. By implementation of the invention, the pipe rolling device can realize the functions of pipe rolling and pipe unrolling, and the rolled pipe can keep certain pre-tightening force.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of tube rolling device hydraulic system and rotary drilling rig.
Background technique
The reaming type rotary drilling rig is to install hole expansion function additional on the basis of rotary drilling rig, and then has the stake construction equipment of reaming engineering method.Agent structure and the rotary drilling rig of reaming rig are similar, in addition also comprise main swivel coupling, rotation platform and hydraulic pressure borehole-enlarging drilling tool.Wherein, swivel coupling the first rotating part and unit head casing are fixed together, and rotation platform is connected with the second portion of swivel coupling, and when carrying out ream operation, the second portion of rotation platform and swivel coupling rotates with drilling rod; The hydraulic pressure borehole-enlarging drilling tool is arranged at the drilling rod bottom, and during ream operation, the reaming oil cylinder of hydraulic pressure reamer stretches out, thereby finishes ream operation.
The hydraulic oil of reaming oil cylinder is from rotary digging drill power head, thereby need not to increase extra hydraulic power unit as oil sources.Behind the driven force head hydraulic oil process swivel coupling and rotation platform out, be connected on the borehole-enlarging drilling tool by hydralic hose, for the reaming oil cylinder provides hydraulic oil.Be provided with the hydraulic pipe rolling device at rotation platform, be used for realizing the folding and unfolding of hydralic hose.
When carrying out operation, borehole-enlarging drilling tool and drilling rod are transferred in the stake hole of accomplishing fluently in advance together, and the reaming oil cylinder stretches out and carries out ream operation afterwards, drilling bucket is proposed to unload soil after drilling bucket is made soil, continues afterwards to transfer to and carries out ream operation in the hole, so moves in circles.Because borehole-enlarging drilling tool need to unload the soil action continually, the hydralic hose that is attached thereto also needs constantly to carry out the folding and unfolding action, therefore, and in borehole-enlarging drilling tool put-on and delegated process, hydralic hose need to be followed drilling tool and be moved together that (when carrying on the drilling bucket, tube rolling device need reclaim sebific duct; When drilling bucket was transferred, tube rolling device need be emitted sebific duct), and in drilling tool put-on and delegated process, sebific duct need to keep certain tension force, to prevent the sebific duct pine disorderly, causes the sebific duct wearing and tearing to break when ream operation.
Summary of the invention
In view of this, the present invention is intended to propose a kind of tube rolling device hydraulic system and rotary drilling rig, makes tube rolling device can automatically realize along with the lifting of drilling rod closed tube and put the pipe function, and makes pipe crimping keep certain pre-tensioning.
On the one hand, tube rolling device hydraulic system of the present invention comprises tube rolling device motor, main valve, one-way balance valve, the first relief valve and the second relief valve; The filler opening of described main valve is connected to hydraulic power, the return opening of described main valve is connected to oil return circuit, the first actuator port of described main valve is connected to the free oil inlet end of described one-way balance valve, the free oil outlet end of described one-way balance valve be connected to described tube rolling device motor on carry hydraulic fluid port, the second actuator port of described main valve is connected to the lower fuel outlet of described tube rolling device motor, and the hydraulic control of described one-way balance valve is terminated on the oil circuit between described the second actuator port and the described lower fuel outlet; The filler opening of described the first relief valve is connected on the oil circuit between described the first actuator port and the described free oil inlet end, and the flow-off of described the first relief valve is connected on the oil circuit between described the second actuator port and the described lower fuel outlet; The filler opening of described the second relief valve be connected to described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port, the flow-off of described the second relief valve is connected on the oil circuit between described the second actuator port and the described lower fuel outlet.
Further, described tube rolling device motor comprises the first tube rolling device motor and the second tube rolling device motor.
Further, described tube rolling device hydraulic system also comprises the 3rd relief valve, the filler opening of described the 3rd relief valve is connected on the oil circuit between described the second actuator port and the described lower fuel outlet, and the flow-off of described the 3rd relief valve is connected on the oil circuit between described the first actuator port and the described free oil inlet end.
Further, described main valve has two kinds of working staties at least, under the first working state, the filler opening of described main valve communicates with the first actuator port, the return opening of described main valve communicates with the second actuator port, under the second working state, the filler opening of described main valve communicates with the second actuator port, and the return opening of described main valve communicates with the first actuator port.
Further, each valve is integrated on the same valve piece.
Further, described tube rolling device hydraulic system also comprises the first switch valve, described the first switch valve is Normally closed type, the first hydraulic fluid port of described the first switch valve be connected to described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port, the second hydraulic fluid port of described the first switch valve is connected to the filler opening of described the second relief valve, the hydraulic control of described the first switch valve be terminated at described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port.
Further, described tube rolling device hydraulic system also comprises the second switch valve, described second switch valve is Normally closed type, the first hydraulic fluid port of described second switch valve is connected on the oil circuit between described free oil inlet end and described the first actuator port, the second hydraulic fluid port of described second switch valve is connected on the oil circuit between described the second actuator port and the described lower fuel outlet, the hydraulic control of described second switch valve be terminated at described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port.
On the other hand, rotary drilling rig provided by the invention is provided with above-mentioned each described tube rolling device hydraulic system.
Tube rolling device hydraulic system provided by the invention can make tube rolling device that sebific duct is carried out automatic deploying and retracting, be implemented in borehole-enlarging drilling tool carry in the process of transferring hydralic hose can follow drilling tool move (be drilling bucket when carrying, tube rolling device the automatic recovery sebific duct; When drilling bucket was transferred, the tube rolling device automatic releasing went out sebific duct), and this pipe crimping hydraulic system can make sebific duct keep certain pre-tensioning in the lifting process of drilling tool.
Rotary drilling rig of the present invention is provided with above-mentioned tube rolling device hydraulic system, because above-mentioned tube rolling device hydraulic system has above-mentioned technique effect, therefore, this tube rolling device hydraulic system also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
The principle schematic of a kind of tube rolling device hydraulic system that Fig. 1 provides for the embodiment of the invention;
The primary component symbol description:
1 first tube rolling device motor
2 second tube rolling device motors
3 first switch valves
4 one-way balance valves
5 second switch valves
6 first relief valves
7 main valves
8 the 3rd relief valves
9 second relief valves
Embodiment
Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection scope of the present invention is had any restriction.In addition, under the situation of not conflicting, embodiment and the feature among the embodiment in this part can make up mutually.
Please refer to Fig. 1, below in conjunction with embodiment the present invention is elaborated.
As shown in Figure 1, this embodiment's tube rolling device hydraulic system comprises tube rolling device motor, main valve 7, one-way balance valve 4, the first relief valve 6, the second relief valve 9, the 3rd relief valve 8, the first switch valve 3 and second switch valve 5.
Wherein, the tube rolling device motor comprises the first tube rolling device motor 1 and the second tube rolling device motor 2; The filler opening of main valve 7 is connected to hydraulic power, the return opening of main valve 7 is connected to oil return circuit, the first actuator port of main valve 7 is connected to the free oil inlet end of one-way balance valve 4, the free oil outlet end of one-way balance valve 4 be connected to two tube rolling device motors on carry hydraulic fluid port, the second actuator port of main valve 7 is connected to the lower fuel outlet of two tube rolling device motors, and the hydraulic control of one-way balance valve 4 is terminated on the oil circuit between described the second actuator port and the lower fuel outlet.
The filler opening of the first relief valve 6 is connected on the oil circuit between described the first actuator port and the described free oil inlet end, and the flow-off of the first relief valve 6 is connected on the oil circuit between described the second actuator port and the described lower fuel outlet; The filler opening of the 3rd relief valve 8 is connected on the oil circuit between described the second actuator port and the described lower fuel outlet, and the flow-off of the 3rd relief valve 8 is connected on the oil circuit between described the first actuator port and the described free oil inlet end.
The first switch valve 3 is Normally closed type, the first hydraulic fluid port of the first switch valve 3 be connected to described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port, the second hydraulic fluid port of the first switch valve 3 is connected to the filler opening of the second relief valve 9, the hydraulic control of the first switch valve 3 be terminated at described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port; The flow-off of the second relief valve 9 is connected on the oil circuit between described the second actuator port and the described lower fuel outlet.
In specific implementation process, the first tube rolling device and the second tube rolling device are fixedly installed on the rotation platform of reaming type rotary drilling rig, the first tube rolling device motor 1 be connected tube rolling device motor 2 respectively with the first tube rolling device be connected tube rolling device and drive and to be connected; The first sebific duct is wound on the first tube rolling device, its folding and unfolding end is connected to the rodless cavity of the reaming oil cylinder in the borehole-enlarging drilling tool by drilling rod, the second sebific duct is wound on the second tube rolling device, its folding and unfolding end is connected to the rod chamber of the reaming oil cylinder in the borehole-enlarging drilling tool by drilling rod, when the hydraulic oil that comes unit head optionally is this rodless cavity or rod chamber fuel feeding, the reaming oil cylinder can be realized stretching out or retracting, to realize ream operation.
Working principle below in conjunction with specific works scene explanation above-described embodiment:
1, is in the work progress at expansion subdrilling machine, when carrying on start attonity or the master winch, main valve 7 is operated in the first working state, the pressure oil of hydraulic power enters from the filler opening of main valve 7, through behind the one-way balance valve 4, act on two tube rolling device motors on carry hydraulic fluid port, drive on the two tube rolling device motors and carry sebific duct, at this moment, the first switch valve 3 and second switch valve 5 are for closed condition, and the first relief valve 6 is in overflow situation, therefore, tube rolling device drives sebific duct and keeps tensioning, and under this situation, the large I of the pre-tensioning of sebific duct is set by the cracking pressure of the first relief valve 6.
2, when master winch is transferred, sebific duct on two tube rolling devices is driven descending, drive the running of two tube rolling devices, the passive rotation of two tube rolling device motors, the oil circuit pressure of carrying on the two tube rolling device motors between hydraulic fluid port and the one-way balance valve 4 free oil outlet ends raises, and then opens the first switch valve 3 and second switch valve 5; The pressure oil of hydraulic power enters from the filler opening of main valve 7, and by 5 off-loads of second switch valve; And the hydraulic oil of proposing hydraulic fluid port output on the two tube rolling device motors is got back to the lower fuel outlet of two tube rolling device motors or is got back to oil return circuit after by the first switch valve 3 and the second relief valve 9, the second relief valve 9 can guarantee that the sebific duct that is wound in two tube rolling device motors keeps tensioning in passive rotary course, under this situation, the large I of the pre-tensioning of sebific duct is set by the cracking pressure of the second relief valve 9.
3, unloading fast under the pipe die formula, main valve 7 is operated in the second working state, after the pressure oil of hydraulic power enters from the filler opening of main valve 7, act directly on the mouth of transferring of two tube rolling device motors, drive two tube rolling device motors and transfer sebific duct, this pressure oil is also opened one-way balance valve 4 by the hydraulic control end of one-way balance valve 4, make two tube rolling device motors on propose hydraulic fluid port output hydraulic oil get back to oil return circuit through one-way balance valve 4; In this process, the maximum pressure of tubulose attitude is unloaded in 8 restrictions of the 3rd relief valve, and in this case, the large I of the pretightening force of sebific duct is set by the 3rd relief valve 8.
In above-described embodiment, preferably, the cracking pressure of the second relief valve 9 is greater than the cracking pressure of the first switch valve 3; In addition, preferably, the first relief valve 6 is identical with the cracking pressure of the second relief valve 9, can guarantee that like this pretightening force size variation of sebific duct in raising and decentralizing process is little.
In above-described embodiment, preferably, as shown in the figure, each valve is integrated in the same valve piece, this valve piece forms the oil-collecting holes such as P, T, A1, A2, B1, B2, MA, MB and MP, and wherein, MA, MB and MP are as the pressure measurement hydraulic fluid port, the mode of communicating of each hydraulic fluid port can referring to shown in Figure 1, can reduce the complexity of line arrangement like this.
In above-described embodiment, preferably, the first switch valve 3 and second switch valve 5 adopt the 2/2-way valve, and main valve 7 adopts the 2/2-way solenoid valve; But in other embodiments, be not limited to this, as long as can realize above-mentioned corresponding function.In addition, in other embodiments, if the cracking pressure of the first relief valve 6 and the second relief valve 9 can satisfy the use needs, also can omit as required the first switch valve 3 and second switch valve 5, and the filler opening of the second relief valve 9 is connected on the oil circuit of carrying between hydraulic fluid port and the one-way balance valve 4 free oil outlet ends.
From the foregoing, the tube rolling device hydraulic system of the embodiment of the invention can realize the automatic deploying and retracting to sebific duct, make borehole-enlarging drilling tool carry with the process of transferring in, sebific duct can follow drilling tool move together (when carrying on the drilling bucket, tube rolling device the automatic recovery sebific duct; When drilling bucket was transferred, the tube rolling device automatic releasing went out sebific duct); In addition, can also make sebific duct in the lifting process of borehole-enlarging drilling tool, realize automatic tensioning function, and keep certain pre-tensioning; In addition, also have and unload fast the pipe die formula, make tube rolling device when removing and installing sebific duct, have the function of quickly retracting sebific duct.
The embodiment of the invention also provides a kind of rotary drilling rig, as revolve and dig the reaming rig, this rotary drilling rig is provided with the described tube rolling device hydraulic system of above-described embodiment, because above-mentioned tube rolling device hydraulic system has above-mentioned technique effect, therefore, this rotary drilling rig also should possess corresponding technique effect, and the specific implementation process of its appropriate section is similar to the above embodiments, the specific implementation process of other parts can referring to the associated description of prior art, not given unnecessary details hereby.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. tube rolling device hydraulic system is characterized in that:
Described tube rolling device hydraulic system comprises tube rolling device motor, main valve (7), one-way balance valve (4), the first relief valve (6) and the second relief valve (9);
The filler opening of described main valve (7) is connected to hydraulic power, the return opening of described main valve (7) is connected to oil return circuit, the first actuator port of described main valve (7) is connected to the free oil inlet end of described one-way balance valve (4), the free oil outlet end of described one-way balance valve (4) be connected to described tube rolling device motor on carry hydraulic fluid port, the second actuator port of described main valve (7) is connected to the lower fuel outlet of described tube rolling device motor, and the hydraulic control of described one-way balance valve (4) is terminated on the oil circuit between described the second actuator port and the described lower fuel outlet;
The filler opening of described the first relief valve (6) is connected on the oil circuit between described the first actuator port and the described free oil inlet end, and the flow-off of described the first relief valve (6) is connected on the oil circuit between described the second actuator port and the described lower fuel outlet;
The filler opening of described the second relief valve (9) be connected to described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port, the flow-off of described the second relief valve (9) is connected on the oil circuit between described the second actuator port and the described lower fuel outlet.
2. tube rolling device hydraulic system as claimed in claim 1, it is characterized in that: described tube rolling device motor comprises the first tube rolling device motor (1) and the second tube rolling device motor (2).
3. tube rolling device hydraulic system as claimed in claim 1, it is characterized in that: described tube rolling device hydraulic system also comprises the 3rd relief valve (8), the filler opening of described the 3rd relief valve (8) is connected on the oil circuit between described the second actuator port and the described lower fuel outlet, and the flow-off of described the 3rd relief valve (8) is connected on the oil circuit between described the first actuator port and the described free oil inlet end.
4. tube rolling device hydraulic system as claimed in claim 1, it is characterized in that: described main valve (7) has two kinds of working staties at least, under the first working state, the filler opening of described main valve (7) communicates with the first actuator port, the return opening of described main valve (7) communicates with the second actuator port, under the second working state, the filler opening of described main valve (7) communicates with the second actuator port, and the return opening of described main valve (7) communicates with the first actuator port.
5. tube rolling device hydraulic system as claimed in claim 1, it is characterized in that: each valve is integrated on the same valve piece.
6. such as claim 1 to 5 tube rolling device hydraulic system as described in each, it is characterized in that: described tube rolling device hydraulic system also comprises the first switch valve (3), described the first switch valve (3) is Normally closed type, the first hydraulic fluid port of described the first switch valve (3) be connected to described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port, the second hydraulic fluid port of described the first switch valve (3) is connected to the filler opening of described the second relief valve (9), the hydraulic control of described the first switch valve (3) be terminated at described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port.
7. such as each described tube rolling device hydraulic system of claim 1 to 5, it is characterized in that: described tube rolling device hydraulic system also comprises second switch valve (5), described second switch valve (5) is Normally closed type, the first hydraulic fluid port of described second switch valve (5) is connected on the oil circuit between described free oil inlet end and described the first actuator port, the second hydraulic fluid port of described second switch valve (5) is connected on the oil circuit between described the second actuator port and the described lower fuel outlet, the hydraulic control of described second switch valve (5) be terminated at described free oil outlet end and described on carry on the oil circuit between the hydraulic fluid port.
8. rotary drilling rig, it is characterized in that: described rotary drilling rig is provided with each described tube rolling device hydraulic system of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572019.4A CN103032394B (en) | 2012-12-26 | 2012-12-26 | Hydraulic system of pipe rolling device and rotary-excavating drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572019.4A CN103032394B (en) | 2012-12-26 | 2012-12-26 | Hydraulic system of pipe rolling device and rotary-excavating drilling machine |
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| CN103032394A true CN103032394A (en) | 2013-04-10 |
| CN103032394B CN103032394B (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572019.4A Active CN103032394B (en) | 2012-12-26 | 2012-12-26 | Hydraulic system of pipe rolling device and rotary-excavating drilling machine |
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| US3589387A (en) * | 1969-08-22 | 1971-06-29 | Int Basic Economy Corp | Integrated manifold circuits and method of assembly |
| JPS55166507A (en) * | 1979-06-15 | 1980-12-25 | Hitachi Constr Mach Co Ltd | Circuit for hydraulically movable device |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN102269199A (en) * | 2011-07-13 | 2011-12-07 | 武汉船用机械有限责任公司 | Bidirectional three-speed motor controller |
| CN102425578A (en) * | 2011-11-24 | 2012-04-25 | 武汉船用机械有限责任公司 | Novel double-motor serial-parallel automatic switching device |
| CN102659049A (en) * | 2012-05-07 | 2012-09-12 | 三一汽车起重机械有限公司 | Dual-winch hydraulic control system and engineering machine |
| CN203067376U (en) * | 2012-12-26 | 2013-07-17 | 三一重工股份有限公司 | Hydraulic system of pipe rolling device and rotary drilling machine |
-
2012
- 2012-12-26 CN CN201210572019.4A patent/CN103032394B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3589387A (en) * | 1969-08-22 | 1971-06-29 | Int Basic Economy Corp | Integrated manifold circuits and method of assembly |
| JPS55166507A (en) * | 1979-06-15 | 1980-12-25 | Hitachi Constr Mach Co Ltd | Circuit for hydraulically movable device |
| CN102153027A (en) * | 2011-04-12 | 2011-08-17 | 武汉船用机械有限责任公司 | Stepless regulation constant tension device for hydraulic winch |
| CN102269199A (en) * | 2011-07-13 | 2011-12-07 | 武汉船用机械有限责任公司 | Bidirectional three-speed motor controller |
| CN102425578A (en) * | 2011-11-24 | 2012-04-25 | 武汉船用机械有限责任公司 | Novel double-motor serial-parallel automatic switching device |
| CN102659049A (en) * | 2012-05-07 | 2012-09-12 | 三一汽车起重机械有限公司 | Dual-winch hydraulic control system and engineering machine |
| CN203067376U (en) * | 2012-12-26 | 2013-07-17 | 三一重工股份有限公司 | Hydraulic system of pipe rolling device and rotary drilling machine |
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| CN103032394B (en) | 2015-05-13 |
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