CN210217604U - Power head operating system of rotary drilling rig and rotary drilling rig - Google Patents
Power head operating system of rotary drilling rig and rotary drilling rig Download PDFInfo
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- CN210217604U CN210217604U CN201920817287.5U CN201920817287U CN210217604U CN 210217604 U CN210217604 U CN 210217604U CN 201920817287 U CN201920817287 U CN 201920817287U CN 210217604 U CN210217604 U CN 210217604U
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- rotary drilling
- drilling rig
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Abstract
The utility model relates to a dig rig unit head operating system soon, include main pump, main pump power control valve, get rid of native control solenoid valve, main valve and unit head motor, have the mode of creeping into and get rid of native mode. The utility model discloses compromise and dig the advantage of rig load sensitive system soon, not only make the unit head adapt to different stratum when creeping into the operation, when the unit head got rid of the soil operation, realize the quick positive and negative rotation of unit head and fast switch over moreover.
Description
The technical field is as follows:
the utility model relates to a dig rig technical field soon, especially relate to a dig rig soon of rig unit head operating system and have this operating system soon.
Background art:
the rotary drilling rig is hole-forming mechanical equipment with high mechanical-electrical-hydraulic integration level, and is commonly used in pile foundation construction, pressurized drilling and soil unloading are key links in operation circulation, and the drilling efficiency and the soil unloading efficiency directly influence the operation efficiency.
The construction stratum of the rotary drilling rig is complex, even the stratum of the same pile hole from the ground to the bottom of the hole is different, and a single drilling mode cannot adapt to all the stratums, so that the maximum efficiency of the machine is influenced; the common drilling tool of the rotary drilling rig has the phenomenon of difficult soil unloading, and the soil unloading problem is still a great problem especially in the operation of clay layers and small pile diameters.
In the existing rotary drilling rig provided with a load sensitive system, forward rotation or reverse rotation speed of a power head is finished according to the amplitude of a pilot handle operated by an operator, and the rotary drilling rig lacks adaptability to different stratums during drilling construction; when the soil is unloaded, a certain time is needed for operating the pilot handle, the main pump responds after the pilot pressure is built, and the main pump also needs a certain response time for building the pressure, so that the rotation start and stop of the power head are delayed to a certain extent, and when the soil is required to be quickly thrown, the forward and reverse switching speed is slow, so that the soil unloading efficiency is low, and the clay cannot be thrown out of the drilling bucket.
The utility model has the following contents:
the utility model aims at providing a dig rig unit head operating system soon and dig the rig soon compromises the advantage of digging the sensitive system of rig load soon, not only makes the action head adapt to different stratum when creeping into the operation, when the unit head got rid of the soil operation, realizes that the unit head is quick just reversing and fast switch over moreover.
In order to realize the above-mentioned purpose, the utility model provides a dig rig unit head operating system soon, include main pump, main pump power control valve, get rid of native control solenoid valve, main valve and unit head motor, the main valve sets up between main pump and unit head motor for output high-pressure oil drive unit head motor corotation or reversal, main pump power control valve is connected with the main valve through getting rid of native control solenoid valve for the discharge capacity of regulating pump.
In addition, the power head operation system of the rotary drilling rig further comprises a power head motor displacement regulating valve, and the power head motor displacement regulating valve is connected with a power head motor and used for regulating the displacement of the power head motor; the load pressure feedback valve is respectively connected with the main pump power regulating valve and the power head motor displacement regulating valve, respectively feeds pressure back to the main pump power regulating valve and the power head motor displacement regulating valve, and simultaneously feeds pressure signals back to the controller.
Preferably, the main pump power regulating valve comprises an electromagnetic proportional directional valve and a pressure control valve, and receives a controller signal and a load pressure feedback valve signal to perform self-adaptive regulation; the power head motor displacement regulating valve comprises an electromagnetic proportional reversing valve and a pressure control valve, and receives a controller signal and a load pressure feedback valve signal to perform self-adaptive regulation.
The utility model also provides a dig the rig soon, it has above-mentioned unit head operating system to dig the rig soon.
The utility model discloses following positive effect has:
when the rotary drilling rig drills, the control system and the control method of the utility model can acquire the load pressure of different strata in real time, match the power head power output according to different load pressures, adapt to different stratum working conditions, realize high rotating speed output in light load and realize high efficiency; when the load is heavy, the corresponding large torque is matched, and the drilling can be effectively carried out; self-adaptive and automatic operation is realized according to the feedback of different load pressures, and the labor intensity of an operator is reduced;
when the unit head is got rid of soil operation, the utility model discloses a control system and control method adjust and keep the main pump discharge capacity at the biggest, adjust and keep unit head motor discharge capacity at the minimum, make the main pump be in the armed state all the time, the unit head supplies with at any time when needing, eliminates under the soil throwing mode main pump build-up pressure response time and unit head motor discharge capacity change time delay, realizes that the unit head motor fast response is just reversing to be switched over, and then drives the quick just reverse of drilling tool, reaches the effect of getting rid of soil fast and unloading soil.
Description of the drawings:
FIG. 1 is a schematic diagram of a power head operating system of a rotary drilling rig according to the present invention;
fig. 2 is a flow chart of the operation method of the power head of the rotary drilling rig of the utility model.
The specific implementation mode is as follows:
the following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined.
As shown in fig. 1, a power head operating system of a rotary drilling rig comprises a main pump 1, a main pump power regulating valve 2, a soil throwing control electromagnetic valve 3, a load pressure feedback valve 4, a main valve 5, a power head motor displacement regulating valve 6, a power head motor 7 and a controller, wherein the main pump 1 is connected with the power head motor 7 through the main valve 5 and used for outputting high-pressure oil to drive the power head motor 7 to rotate forwards or reversely, and the main pump power regulating valve 2 is connected with the main valve 5 through the soil throwing control electromagnetic valve 3 and used for regulating the displacement of the main pump 1. The controller is connected with a load pressure feedback valve 4, a main pump power regulating valve 2 and a power head motor displacement regulating valve 6, the load pressure feedback valve 4 is connected with the controller, the main pump power regulating valve 2 and the power head motor displacement regulating valve 6, the main pump power regulating valve 2 regulates the main pump displacement after receiving a controller signal and a load pressure feedback valve signal, the power head motor displacement regulating valve 6 regulates the power head motor displacement after receiving the controller signal and the load pressure feedback valve signal, the displacement of the main pump 1 is self-adaptive to the load in a drilling mode and is regulated and kept to the maximum in a soil throwing mode, and the displacement of the power head motor 7 is self-adaptive to the load in the drilling mode and is regulated and kept to the minimum in the soil throwing mode.
Operating a power head handle, and when drilling normally or throwing soil in a normal forward direction, feeding oil into an opening a of a main valve 5 to control a main valve core to move to an opening b and open, so that high-pressure oil output by a main pump 1 drives a power head motor 7 to rotate forwards through an opening P of the main valve 5; when the main pump 1 rotates reversely, oil enters the port b of the main valve 5, the main valve core is controlled to move to the port a and is opened, and then high-pressure oil output by the main valve 1 drives the power head motor 7 to rotate reversely through the port P of the main valve 5; no matter the power head rotates forwards or backwards, when the main valve core is opened, the Ls port of the main valve 5 also builds pressure, the Ls port of the main valve 5 is communicated with Ls on the main pump power regulating valve 2, the pressure oil increases the discharge capacity of the main pump 1 through the main pump power regulating valve 2, and the power head motor 7 is supplied.
When the system is not active, there is no pressure at the Ls port of the main valve 5, and the main pump 1 is at minimum displacement in this state. When the forward rotation or reverse rotation is started, firstly, the pipeline of the power head motor 7 builds pressure, the pressure is further transmitted to the Ls port of the main valve 5 and then further transmitted to the main pump power regulating valve 2, and then the feedback enables the displacement of the main pump 1 to change, and both the building and the transmission of the pressure require time. When the power head is required to throw soil, the displacement of the main pump 1 is subjected to the processes of changing from large to small and then from small to large in the positive and negative rotation switching process, so that the positive and negative rotation switching of the power head is delayed, and the soil throwing effect cannot be achieved.
Therefore, the utility model discloses a when unit head motor 7 just reverses and switches, main pump 1 is in the armed state of big discharge capacity all the time, eliminates the time delay of 1 discharge capacity change of main pump, along with giving, and quick response. The utility model discloses be provided with and get rid of native control solenoid valve 3, in the work progress, when needing to get rid of earth, get rid of native control solenoid valve 3 and get electric, at this moment, main pump power governing valve 2's Ls hydraulic fluid port is connected with 1 delivery outlet of main pump, as long as the machine does not put out fire promptly, no matter unit head corotation or reversal, main pump power governing valve 2's Ls mouth has pressure all the time, main pump 1 is in big discharge state all the time, the time delay of 1 response process of main pump when having eliminated the corotation promptly.
The utility model discloses a rotary drilling rig unit head operation method flow is as shown in figure 2:
the controller can receive mode selection of an operator after the controller main program is initialized to run; in a drilling mode, the controller receives a signal of the load pressure feedback valve, analyzes and processes the signal, outputs a control signal to the power head motor displacement regulating valve 6 and the main pump power regulating valve 2, further enables the displacement of the power head motor 7 to be adaptive to the load, and enables the power of the main pump 1 to respond and adapt to the load requirement; and in the soil throwing mode, the controller directly outputs signals to the power head motor displacement regulating valve 6 and the main pump power regulating valve 2, so that the displacement of the power head motor 7 is regulated and kept to be minimum, and the displacement of the main pump 1 is regulated and kept to be maximum.
The main pump power regulating valve 2 comprises an electromagnetic proportional reversing valve and a pressure control valve, receives the electric signal of the controller and the hydraulic signal of the load pressure feedback valve to carry out self-adaptive regulation, and controls the discharge capacity of the main pump 1, so that the power of the main pump 1 is changed along with the change of an operation mode or load pressure.
The power head motor displacement regulating valve 6 comprises an electromagnetic proportional reversing valve and a pressure control valve, receives a controller electric signal and a load pressure feedback valve hydraulic signal to perform self-adaptive regulation, and regulates the motor displacement, so that the displacement of the power head motor 7 is changed along with the change of an operation mode or load pressure.
The controller can also receive the running data of the engine of the whole machine in the drilling mode, the self-adaptive control of the power head motor 7 and the load is realized by controlling the power head motor displacement regulating valve 6, and meanwhile, the matching of the main pump 1 and the engine is realized by controlling the main pump power regulating valve 2, so that the self-adaptation of the output rotating speed, the torque and the load of the power head is realized, and the high-efficiency and stable output of the power head operation is realized.
The controller directly adjusts the discharge capacity of the main pump 1 and keeps the discharge capacity at the maximum through controlling the main pump power regulating valve 2 in the soil throwing mode, so that the main pump 1 keeps full power output; the controller directly adjusts the displacement of the power head motor 7 and keeps the displacement at the minimum displacement by controlling the power head motor displacement adjusting valve 6, so that the power head motor 7 keeps the output of the minimum displacement and the maximum rotating speed; therefore, the pressure build-up response time of the main pump 1 and the discharge variation time delay of the power head motor 7 in the soil throwing mode are eliminated, and the fastest rotating speed and forward and reverse switching speed of the power head motor 7 are realized.
When the controller is in a drilling mode, different strata are subdivided into a plurality of drilling modes including a rock entering mode, a high-efficiency mode and a standard mode according to the collected load pressure feedback valve signals, and self-adaption and automation operation on the different strata are further realized, so that the labor intensity of an operator is reduced.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (6)
1. The utility model provides a dig rig unit head operating system soon which characterized in that: the main valve is arranged between the main pump and the power head motor and used for outputting high-pressure oil to drive the power head motor to rotate forwards or backwards, and the main pump power regulating valve is connected with the main valve through the soil throwing control electromagnetic valve and used for regulating the discharge capacity of the pump.
2. The rotary drilling rig power head operating system according to claim 1, characterized in that: the power head motor displacement adjusting valve is connected with the power head motor and used for adjusting the displacement of the power head motor.
3. The rotary drilling rig power head operating system according to claim 2, characterized in that: the load pressure feedback valve is respectively connected with the main pump power regulating valve and the power head motor displacement regulating valve and used for feeding load pressure back to the main pump power regulating valve and the power head motor displacement regulating valve and feeding a load pressure signal back to the controller.
4. The rotary drilling rig power head operating system according to claim 1, characterized in that: the main pump power regulating valve comprises an electromagnetic proportional directional valve and a pressure control valve, and receives a controller signal and a load pressure feedback valve signal to perform self-adaptive regulation.
5. The rotary drilling rig power head operating system according to claim 2, characterized in that: the power head motor displacement regulating valve comprises an electromagnetic proportional reversing valve and a pressure control valve, and receives a controller signal and a load pressure feedback valve signal to perform self-adaptive regulation.
6. A rotary drilling rig is characterized in that: the rotary drilling rig is provided with the power head operating system of the rotary drilling rig according to any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817287.5U CN210217604U (en) | 2019-05-31 | 2019-05-31 | Power head operating system of rotary drilling rig and rotary drilling rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920817287.5U CN210217604U (en) | 2019-05-31 | 2019-05-31 | Power head operating system of rotary drilling rig and rotary drilling rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210217604U true CN210217604U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920817287.5U Expired - Fee Related CN210217604U (en) | 2019-05-31 | 2019-05-31 | Power head operating system of rotary drilling rig and rotary drilling rig |
Country Status (1)
| Country | Link |
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| CN (1) | CN210217604U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159184A (en) * | 2019-05-31 | 2019-08-23 | 玉柴桩工(常州)有限公司 | Rotary digging drill power head operating system, operational method and rotary drilling rig |
-
2019
- 2019-05-31 CN CN201920817287.5U patent/CN210217604U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110159184A (en) * | 2019-05-31 | 2019-08-23 | 玉柴桩工(常州)有限公司 | Rotary digging drill power head operating system, operational method and rotary drilling rig |
| CN110159184B (en) * | 2019-05-31 | 2024-05-24 | 常州玉柴工程机械有限公司 | Rotary drilling rig power head operation system, operation method and rotary drilling rig |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200331 |