CN202829412U - Main winch hydraulic control system for rotary drilling machine and rotary drilling machine - Google Patents
Main winch hydraulic control system for rotary drilling machine and rotary drilling machine Download PDFInfo
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- CN202829412U CN202829412U CN201220493105.1U CN201220493105U CN202829412U CN 202829412 U CN202829412 U CN 202829412U CN 201220493105 U CN201220493105 U CN 201220493105U CN 202829412 U CN202829412 U CN 202829412U
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- rotary drilling
- control system
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Abstract
The utility model provides a main winch hydraulic control system for a rotary drilling machine and further provides the rotary drilling machine with the main winch hydraulic control system. The main winch hydraulic control system comprises a first main pump, a main valve structure and an inverse feedback return circuit, wherein the first main pump is provided with an inverse feedback port, the main valve structure is provided with an inverse feedback connection port, and the inverse feedback connection port and the inverse feedback port are connected through the inverse feedback circuit. When the main winch is put down and the inverse feedback port receives inverse feedback oil from the inverse feedback connection port. The main winch hydraulic control system further comprises a pressure control device, the pressure control device is connected to the inverse feedback port and controls discharge capacity of the first main pump through controlling pressure of the inverse feedback port. The main winch hydraulic control system for the rotary drilling machine and the rotary drilling machine can effectively reduce time of putting a drill of the drilling machine and improve work efficiency of the rotary drilling machine and is simple in structure and easy to achieve. Other hydraulic return circuits are not altered and improvement cost is low.
Description
Technical field
The utility model relates to engineering machinery field, in particular to a kind of master winch hydraulic control system for rotary drilling rig and a kind of rotary drilling rig.
Background technology
At present, the 68.6%(that the master winch work-hours in the rotary drilling rig work progress accounts for the rig total time is put to bore and is accounted for 26.2%, carries boring accounting for 42.4%), so the master winch operating efficiency is larger on whole rig improved efficiency impact.Master winch is carried and being bored because being subjected to the engine power restriction to be difficult to promote, and to bore what bear be to bear load and put, and room for promotion is larger.
As shown in Figure 1, rotary drilling rig master winch hydraulic efficiency pressure system mainly contains following a few part composition: the first main pump the 1 ', the second main pump 2 ', main valve 3 ', master winch motor 4 '.
When master winch promoted, valve core of main valve 3 ' commutated by passing into pilot pressure oil, and valve core of main valve 3 ' is positioned at left position.The first main pump 1 ' and the second main pump 2 ' interflow are master winch motor 4 ' fuel feeding.
When master winch was transferred, valve core of main valve 3 ' passed into pressure oil and commutates, and the first main pump 1 ' and the second main pump 2 ' are master winch motor 4 ' fuel feeding, and master winch is transferred.When transferring, the second inverse feedback mouth 20 ' pressure drop of the second main pump 2 ', the second main pump 2 ' is brought into play its maximum capacity, carries out work.And the first main pump 1 ' is when master winch is transferred, the first change-over valve 30 ' is in upper, pressure oil and the second main pump 2 ' that the first main pump 1 ' is carried collaborate by main valve 3 ', for master winch is transferred fuel feeding, but the pressure oil that the first main pump 1 ' is carried will all not be used to master winch motor 4 ' fuel feeding, some fluid is by 30 ' the direct oil return of the first change-over valve, improved simultaneously the pressure of the first inverse feedback mouth 10 ' of the first main pump 1 ', make the first inverse feedback mouth 10 ' pressure of the first main pump 1 ' higher, can not bring into play its maximum function.
Therefore, need a kind of new master winch hydraulic control system that is used for rotary drilling rig, can be by the feedback pressure of this first main pump 1 ' be adjusted, to improve the work efficiency of rotary drilling rig master winch.
The utility model content
For solving the problems of the technologies described above, the utility model provides a kind of novel master winch hydraulic control system for rotary drilling rig, has improved the discharge capacity that rotary drilling rig is put main pump when boring, and has shortened the time that rotary drilling rig is put brill.The utility model also provides a kind of rotary drilling rig that comprises this master winch hydraulic control system.
In view of this, the utility model provides a kind of master winch hydraulic control system for rotary drilling rig, described master winch hydraulic control system comprises the first main pump that is provided with the inverse feedback mouth, the negative feedback loop that is provided with the main valve structure of inverse feedback communication port and connects described inverse feedback communication port and described inverse feedback mouth, wherein, when described master winch was transferred action, described inverse feedback mouth received the inverse feedback fluid from described inverse feedback communication port; Described master winch hydraulic control system also comprises: pressure control device, described pressure control device are connected to described inverse feedback mouth, and the pressure by controlling described inverse feedback mouth is to control the discharge capacity of described the first main pump.
Pressure control device reduces the pressure of inverse feedback mouth, and then improves the discharge capacity of the first main pump, has improved rotary drilling rig and has put brill efficient, has effectively saved work-hours; Pressure control device is arranged in the negative feedback loop in the master winch hydraulic control system, and other loops of master winch hydraulic control system be there is no change, is conducive to reduce improvement cost.
In a kind of technical scheme, preferably, described pressure control device comprises the first by pass valve, and the oil inlet of described the first by pass valve is connected to described negative feedback loop, and the oil outlet of described the first by pass valve is connected to fuel tank.
In this technical scheme, the force value of the first by pass valve control inverse feedback mouth, when the pressure of inverse feedback mouth surpasses the predefined force value of the first by pass valve, the first by pass valve begins pressure release, reduce the pressure of inverse feedback mouth, and then the discharge capacity of realization increase the first main pump, so that putting the brill time, greatly shortens rotary drilling rig.
In above-mentioned arbitrary technical scheme, preferably, described pressure control device also comprises the first change-over valve, and described the first change-over valve is connected between the oil inlet of described negative feedback loop and described the first by pass valve; When described the first change-over valve was positioned at the first station, the oil inlet of described negative feedback loop and described the first by pass valve disconnected; When described the first change-over valve was positioned at the second station, described negative feedback loop was communicated with the oil inlet of described the first by pass valve.
In this technical scheme, can control by the first change-over valve the on/off of oil inlet and the inverse feedback mouth of the first by pass valve.
In above-mentioned arbitrary technical scheme, preferably, described the first change-over valve is solenoid directional control valve or hydraulic pilot type change-over valve.
In this technical scheme, the spool of controlling the first change-over valve by electric signal or hydraulic pilot oil replaces, and realizes the on/off of oil inlet and the inverse feedback mouth of the first by pass valve.
In above-mentioned arbitrary technical scheme, preferably, described the first by pass valve is proportional pressure control valve.
In this technical scheme, proportional pressure control valve can arrange different response pressures, and according to the actual conditions of inverse feedback mouth, proportional pressure control valve arranges different precompressed compressions, has greatly increased the practicality of pressure control device.
It is evident that, the first by pass valve also can adopt the other forms of by pass valves such as electric proportional pressure control valve in the above-described embodiment, can't be exhaustive at this, repeat no more.
In another kind of technical scheme, preferably, described pressure control device comprises external pressure oil-source and the second change-over valve, and described inverse feedback communication port, described inverse feedback mouth and described external pressure oil-source are connected to respectively described the second change-over valve; When described the second change-over valve was positioned at the first station, described inverse feedback communication port was communicated with described inverse feedback mouth, formed negative feedback loop; When described the second change-over valve was positioned at the second station, described external pressure oil-source was connected to described inverse feedback mouth, and to described inverse feedback mouth input pressure oil.
In this technical scheme, put in the brill process at rotary drilling rig, when the second change-over valve is positioned at the first station, control the pressure of inverse feedback mouth by the negative feedback loop of main valve structure, and then control the discharge capacity of the first main pump; When the second change-over valve is positioned at the second station, external pressure oil-source is communicated with the inverse feedback mouth, by controlling the oil liquid pressure of external pressure oil-source, to control the pressure of the second by pass valve control inverse feedback mouth, and then control the discharge capacity of the first main pump, pressure control device is simple in structure, is easy to realize, does not change in other loops of master winch hydraulic control system, and improvement cost is low.
In technique scheme, preferably, described the first change-over valve is solenoid directional control valve or hydraulic pilot type change-over valve.
In this technical scheme, the spool of controlling the second change-over valve by electric signal or hydraulic pilot oil replaces, and realizes the on/off of oil inlet and the inverse feedback mouth of the second by pass valve.
In above-mentioned arbitrary technical scheme, preferably, described pressure control device also comprises the second by pass valve, and the oil inlet of described the second by pass valve is connected to described external pressure oil-source.
In this technical scheme, the force value of the second by pass valve control inverse feedback mouth, when the pressure of inverse feedback mouth surpasses the predefined force value of the second by pass valve, the second by pass valve begins pressure release, reduce the pressure of inverse feedback mouth, and then the discharge capacity of realization increase the first main pump, so that putting the brill time, greatly shortens rotary drilling rig.
In above-mentioned arbitrary technical scheme, preferably, described the second by pass valve is proportional pressure control valve.
In this technical scheme, proportional pressure control valve can arrange different response pressures, and according to the actual conditions of inverse feedback mouth, proportional pressure control valve arranges different precompressed compressions, has greatly increased the practicality of pressure control device.
On the other hand, the utility model also provides a kind of rotary drilling rig, comprises the above-mentioned master winch hydraulic control system that is used for rotary drilling rig.
The master winch hydraulic control system that is used for rotary drilling rig that the utility model can also be provided is applied in the middle of other the mechanical equipment, can't be exhaustive at this, repeat no more, but its application all should be within protection domain of the present utility model.
In sum, the master winch hydraulic control system that the utility model provides can reduce putting the brill time of rotary drilling rig effectively, improves the work efficiency of rotary drilling rig, and is simple in structure, is easy to realize, do not change other hydraulic circuits, improvement cost is low.
Description of drawings
Fig. 1 is the principle schematic of master winch hydraulic control system in the correlation technique;
Fig. 2 is according to the principle schematic of an embodiment of master winch hydraulic control system described in the utility model;
Fig. 3 is the principle schematic according to another embodiment of master winch hydraulic control system described in the utility model;
Fig. 4 is the principle schematic according to another embodiment of master winch hydraulic control system described in the utility model.
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1:
The 1 ' first main pump the 10 ' first inverse feedback mouth the 2 ' second main pump the 20 ' second inverse feedback mouth
3 ' main valve the 30 ' first change-over valve, 4 ' master winch motor
Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 2 to Fig. 4:
1 first main pump, 10 inverse feedback mouths, 2 main valve structures, 20 inverse feedback communication ports
3 pressure control devices, 30 first by pass valves, 31 first change-over valves
32 external pressure oil-source 33 second by pass valves 34 second change-over valves
The specific embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments the utility model is further described in detail.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not subjected to the restriction of following public specific embodiment.
Below in conjunction with drawings and Examples the utility model is described further.Need to prove, in the situation that do not conflict, the application's embodiment and the feature among the embodiment can make up mutually.
Extremely shown in Figure 4 such as Fig. 2, the utility model provides a kind of master winch hydraulic control system for rotary drilling rig, the master winch hydraulic control system comprises the first main pump 1 that is provided with inverse feedback mouth 10, be provided with the main valve structure 2 of inverse feedback communication port 20 and the negative feedback loop that connects inverse feedback communication port 20 and inverse feedback mouth 10, wherein, when master winch is transferred action, the inverse feedback fluid that inverse feedback mouth 10 receives from inverse feedback communication port 20, the master winch hydraulic control system also comprises pressure control device 3, pressure control device 3 is connected to inverse feedback mouth 10, and the pressure by control inverse feedback mouth 10 is to control the discharge capacity of the first main pump 1.
Pressure control device reduces the pressure of inverse feedback mouth 10, and then improves the discharge capacity of the first main pump 1, has improved rotary drilling rig and has put brill efficient, has effectively saved work-hours; Pressure control device is arranged in the negative feedback loop in the master winch hydraulic control system, and other loops of master winch hydraulic control system be there is no change, is conducive to reduce improvement cost.
The first technical scheme as shown in Figure 2, the pressure control device 3 among this embodiment comprises that the oil inlet of the first by pass valve 30, the first by pass valves 30 is connected to negative feedback loop, the oil outlet of the first by pass valve 30 is connected to fuel tank.
The force value of the first by pass valve 30 control inverse feedback mouths 10, when the pressure of inverse feedback mouth 10 surpasses the first by pass valve 30 predefined force value, the 30 beginning pressure releases of the first by pass valve, reduce the pressure of inverse feedback mouth 10, and then the discharge capacity of realization increase the first main pump 1, so that putting the brill time, greatly shortens rotary drilling rig.
The second technical scheme as shown in Figure 3, in this embodiment, except comprising above-mentioned the first by pass valve 30, this pressure control device 3 can also comprise the first change-over valve 31, the first change-over valve 31 is connected between the oil inlet of negative feedback loop and the first by pass valve 30, and when the first change-over valve 31 was positioned at the first station, the oil inlet of negative feedback loop and the first by pass valve 30 disconnected, when the first change-over valve 31 was positioned at the second station, negative feedback loop was communicated with the oil inlet of the first by pass valve 30.
By the oil inlet of the first change-over valve 31 controls the first by pass valve 30 and the on/off of inverse feedback mouth 10, effectively protected described the first by pass valve 30.
In the present embodiment, the first change-over valve 31 can be solenoid directional control valve or hydraulic pilot type change-over valve.
Spool by electric signal or hydraulic pilot oil control the first change-over valve 31 replaces, and realizes the on/off of oil inlet and the inverse feedback mouth 10 of the first by pass valve 30.
In a kind of specific embodiment, the first by pass valve 30 is proportional pressure control valve.
Proportional pressure control valve can arrange different response pressures, and according to the actual conditions of inverse feedback mouth 10, proportional pressure control valve arranges different precompressed compressions, has greatly increased the practicality of pressure control device.
It is evident that, the first by pass valve 30 also can adopt the other forms of by pass valves such as electric proportional pressure control valve in the above-described embodiment, can't be exhaustive at this, repeat no more.
The third technical scheme as shown in Figure 4, in this embodiment, pressure control device 3 can comprise external pressure oil-source 32 and the second change-over valve 32, inverse feedback communication port 20, inverse feedback mouth 10 and external pressure oil-source 32 are connected to respectively the second change-over valve 34, when the second change-over valve 34 is positioned at the first station, inverse feedback communication port 20 is communicated with inverse feedback mouth 10, form negative feedback loop, when the second change-over valve 34 is positioned at the second station, external pressure oil-source 32 is connected to inverse feedback mouth 10, and to inverse feedback mouth 10 input pressures oil.
Put in the brill process at rotary drilling rig, when the second change-over valve 34 is positioned at the first station, control the pressure of inverse feedback mouth 10 by the negative feedback loop of main valve structure 2, and then control the discharge capacity of the first main pump 1; When the second change-over valve 34 is positioned at the second station, external pressure oil-source 32 is communicated with inverse feedback mouth 10, by controlling the oil liquid pressure of external pressure oil-source 32, to control the pressure of the second by pass valve 33 control inverse feedback mouths 10, and then control the discharge capacity of the first main pump 1, pressure control device is simple in structure, is easy to realize, does not change in other loops of master winch hydraulic control system, and improvement cost is low.
In the present embodiment, the second change-over valve 34 is solenoid directional control valve or hydraulic pilot type change-over valve.
Spool by electric signal or hydraulic pilot oil control the second change-over valve 34 replaces, and realizes the on/off of oil inlet and the inverse feedback mouth of the second by pass valve 33.
Preferably, this pressure control device 3 can also comprise that the oil inlet of the second by pass valve 33, the second by pass valves 33 is connected to external pressure oil-source 32.
The force value of the second by pass valve 33 control inverse feedback mouths 10, when the pressure of inverse feedback mouth 10 surpasses the second by pass valve 33 predefined force value, the 33 beginning pressure releases of the second by pass valve, reduce the pressure of inverse feedback mouth 10, and then the discharge capacity of realization increase the first main pump 1, so that putting the brill time, greatly shortens rotary drilling rig.
In a kind of specific embodiment, the second by pass valve 33 is proportional pressure control valve.
Proportional pressure control valve can arrange different response pressures, and according to the actual conditions of inverse feedback mouth 10, proportional pressure control valve arranges different precompressed compressions, has greatly increased the practicality of pressure control device.
Master winch hydraulic control system in above-described embodiment is applied to rotary drilling rig, namely obtains an embodiment of the utility model rotary drilling rig.
In sum, the master winch hydraulic control system that the utility model provides can reduce putting the brill time of rotary drilling rig effectively, improves the work efficiency of rotary drilling rig, and is simple in structure, is easy to realize, do not change other hydraulic circuits, improvement cost is low.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (10)
1. master winch hydraulic control system that is used for rotary drilling rig, it is characterized in that, described master winch hydraulic control system comprises the first main pump (1), the main valve structure (2) that is provided with inverse feedback communication port (20) that is provided with inverse feedback mouth (10) and connects described inverse feedback communication port (20) and the negative feedback loop of described inverse feedback mouth (10), wherein, when described master winch was transferred action, described inverse feedback mouth (10) received the inverse feedback fluid from described inverse feedback communication port (20);
Described master winch hydraulic control system also comprises:
Pressure control device (3), described pressure control device (3) is connected to described inverse feedback mouth (10), and the pressure by controlling described inverse feedback mouth (10) is to control the discharge capacity of described the first main pump (1).
2. the master winch hydraulic control system for rotary drilling rig according to claim 1 is characterized in that, described pressure control device (3) comprising:
The first by pass valve (30), the oil inlet of described the first by pass valve (30) is connected to described negative feedback loop, and the oil outlet of described the first by pass valve (30) is connected to fuel tank.
3. the master winch hydraulic control system for rotary drilling rig according to claim 2, it is characterized in that, described pressure control device also comprises the first change-over valve (31), and described the first change-over valve (31) is connected between the oil inlet of described negative feedback loop and described the first by pass valve (30);
Described the first change-over valve (31) is when being positioned at the first station, and the oil inlet of described negative feedback loop and described the first by pass valve (30) disconnects;
Described the first change-over valve (31) is when being positioned at the second station, and described negative feedback loop is communicated with the oil inlet of described the first by pass valve (30).
4. the master winch hydraulic control system for rotary drilling rig according to claim 3 is characterized in that, described the first change-over valve (31) is solenoid directional control valve or hydraulic pilot type change-over valve.
5. the master winch hydraulic control system for rotary drilling rig according to claim 2 is characterized in that, described the first by pass valve (30) is proportional pressure control valve.
6. the master winch hydraulic control system for rotary drilling rig according to claim 1 is characterized in that, described pressure control device (3) comprises external pressure oil-source (32) and the second change-over valve (34), wherein:
Described inverse feedback communication port (20), described inverse feedback mouth (10) and described external pressure oil-source (32) are connected to respectively described the second change-over valve (34);
Described the second change-over valve (34) is when being positioned at the first station, and described inverse feedback communication port (20) is communicated with described inverse feedback mouth (10), forms negative feedback loop;
Described the second change-over valve (34) is when being positioned at the second station, and described external pressure oil-source (32) is connected to described inverse feedback mouth (10), and to described inverse feedback mouth (10) input pressure oil.
7. the master winch hydraulic control system for rotary drilling rig according to claim 6 is characterized in that, described the second change-over valve (34) is solenoid directional control valve or hydraulic pilot type change-over valve.
8. the master winch hydraulic control system for rotary drilling rig according to claim 6, it is characterized in that, described pressure control device (3) also comprises the second by pass valve (33), and the oil inlet of described the second by pass valve (33) is connected to described external pressure oil-source (32).
9. the master winch hydraulic control system for rotary drilling rig according to claim 8 is characterized in that, described the second by pass valve (33) is proportional pressure control valve.
10. a rotary drilling rig is characterized in that, comprises such as each described master winch hydraulic control system for rotary drilling rig in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220493105.1U CN202829412U (en) | 2012-09-25 | 2012-09-25 | Main winch hydraulic control system for rotary drilling machine and rotary drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220493105.1U CN202829412U (en) | 2012-09-25 | 2012-09-25 | Main winch hydraulic control system for rotary drilling machine and rotary drilling machine |
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| Publication Number | Publication Date |
|---|---|
| CN202829412U true CN202829412U (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220493105.1U Expired - Lifetime CN202829412U (en) | 2012-09-25 | 2012-09-25 | Main winch hydraulic control system for rotary drilling machine and rotary drilling machine |
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| Country | Link |
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| CN (1) | CN202829412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN104444893A (en) * | 2014-11-27 | 2015-03-25 | 中联重科股份有限公司 | Winch control system |
| CN111501893A (en) * | 2020-04-30 | 2020-08-07 | 徐州徐工挖掘机械有限公司 | Negative flow hydraulic system and excavator |
-
2012
- 2012-09-25 CN CN201220493105.1U patent/CN202829412U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104235090A (en) * | 2014-07-23 | 2014-12-24 | 北京市三一重机有限公司 | Negative-feedback hydraulic system and rotary drilling rig |
| CN104235090B (en) * | 2014-07-23 | 2016-08-24 | 北京市三一重机有限公司 | Negative feedback hydraulic system and rotary drilling rig |
| CN104444893A (en) * | 2014-11-27 | 2015-03-25 | 中联重科股份有限公司 | Winch control system |
| CN104444893B (en) * | 2014-11-27 | 2016-10-05 | 中联重科股份有限公司 | Winch control system |
| CN111501893A (en) * | 2020-04-30 | 2020-08-07 | 徐州徐工挖掘机械有限公司 | Negative flow hydraulic system and excavator |
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Granted publication date: 20130327 |