CN109469666A - A kind of horizontal directional drilling machine hydraulic control system - Google Patents
A kind of horizontal directional drilling machine hydraulic control system Download PDFInfo
- Publication number
- CN109469666A CN109469666A CN201811207771.2A CN201811207771A CN109469666A CN 109469666 A CN109469666 A CN 109469666A CN 201811207771 A CN201811207771 A CN 201811207771A CN 109469666 A CN109469666 A CN 109469666A
- Authority
- CN
- China
- Prior art keywords
- control valve
- directional control
- way directional
- actuator port
- hydraulic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 39
- 239000003921 oil Substances 0.000 abstract description 28
- 239000010720 hydraulic oil Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 5
- 239000002828 fuel tank Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of horizontal directional drilling machine hydraulic control systems comprising: the first three position four-way directional control valve；Second three position four-way directional control valve, wherein the oil inlet of second three position four-way directional control valve is connect through oil circuit with the first actuator port of first three position four-way directional control valve, and the first actuator port of second three position four-way directional control valve is connect through oil circuit with the second actuator port of first three position four-way directional control valve；Hydraulic motor, the hydraulic motor is used to drive to bore and return under the drilling rod of horizontal directional drilling machine and drag, wherein one end of the hydraulic motor is connect through oil circuit with the first actuator port of first three position four-way directional control valve, and the other end of the hydraulic motor is connect through oil circuit with the second actuator port of first three position four-way directional control valve.The present invention realizes the shunting to the hydraulic oil generated during the release of drilling rod elastic force, the impact suddenly so as to avoid the hydraulic oil generated during the release of drilling rod elastic force to hydraulic motor.
Description
Technical field
The present invention relates to horizontal directional drilling machine manufacturing field, in particular to a kind of horizontal directional drilling machine hydraulic control system.
Background technique
Hydraulic motor drive system is widely used in engineering machinery field.It is horizontal fixed that Fig. 1 shows in the prior art one
To drilling machine hydraulic control system.As shown in Figure 1 comprising by the three position four-way directional control valve 1 and hydraulic motor 4 of oil circuit connection,
The hydraulic motor 4 connect with the drilling rod of horizontal directional drilling machine and is used to drive under drilling rod to bore and return and drags, in which: hydraulic motor 4
One end be connected to an actuator port A of three position four-way directional control valve 1, the other end of hydraulic motor 4 is connected to 3-position 4-way
Another actuator port B of reversal valve 1.Its action process approximately as:
When need to control bored under drilling rod when, the control electromagnet DT1 of control three position four-way directional control valve 1 is when obtaining electric, hydraulic oil
Three position four-way directional control valve 1 is entered to from the oil inlet P of three position four-way directional control valve 1, then from the first work of three position four-way directional control valve 1
Make hydraulic fluid port A to flow out and flow into hydraulic motor 4 along oil circuit to drive hydraulic motor 4 to rotate clockwise and bore so that realization is lower, it is hydraulic
Then the second actuator port B through three position four-way directional control valve 1 flows back into three position four-way directional control valve 1 and through three position four-way directional control valve to oil
1 oil return inlet T returns to fuel tank.Drilling rod forms certain flexible deformation in going down process.
When stopping lower boring, when controlling the control electromagnet DT1 power loss of three position four-way directional control valve 1, the flexible deformation of drilling rod is fast
Quick-release is put, at this point, the three position four-way directional control valve 1 rapidly commutate, in hydraulic oil flowed to from another actuator port B it is hydraulic
Motor 4 is to drive the rotation (counterclockwise) of 4 high-speed reverse of hydraulic motor.The reverse rotation suddenly of hydraulic motor 4 certainly will be to hydraulic
Motor 4 and speed reducer connected to it damage.
For these reasons, it is necessary to hydraulic control system in the prior art be improved, reduced due to drilling rod
Reverse impact of the hydraulic oil that elastic force release generates to hydraulic motor.
Summary of the invention
In order to solve the above technical problems, the invention proposes a kind of horizontal directional drilling machine hydraulic control system, technical side
Case is as follows:
A kind of horizontal directional drilling machine hydraulic control system comprising:
First three position four-way directional control valve；
Second three position four-way directional control valve, wherein the oil inlet of the third position and four-way reversing valve is through oil circuit and the described 1st
First actuator port of position and four-way reversing valve connects, and the first actuator port of second three position four-way directional control valve is through oil circuit and institute
State the second actuator port connection of the first three position four-way directional control valve；
Hydraulic motor, the hydraulic motor is used to drive to bore and return under the drilling rod of horizontal directional drilling machine and drag, wherein the liquid
One end of pressure motor is connect through oil circuit with the first actuator port of first three position four-way directional control valve, the hydraulic motor it is another
One end is connect through oil circuit with the second actuator port of first three position four-way directional control valve.
In certain embodiments, the oil inlet of second three position four-way directional control valve is changed with first 3-position 4-way
Throttle valve is equipped with to the oil circuit between the first actuator port of valve.
Compared with horizontal directional drilling machine hydraulic control system in the prior art, the present invention, which realizes, discharges drilling rod elastic force
The shunting of the hydraulic oil generated in the process, so as to avoid the hydraulic oil generated during the release of drilling rod elastic force to hydraulic motor
Suddenly it impacts, finally protects hydraulic motor and decelerating motor connected to it.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, needing to make described in below embodiment being described
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is only some embodiments of the present invention, for this
For the those of ordinary skill of field, without creative efforts, it can also be obtained according to these attached drawings others
Attached drawing.Wherein:
Fig. 1 is the structural schematic diagram of horizontal directional drilling machine hydraulic control system in the prior art；
Fig. 2 is the structural schematic diagram of horizontal directional drilling machine hydraulic control system of the invention.
Specific embodiment
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
As shown in Fig. 2, horizontal directional drilling machine hydraulic control system provided by the invention includes the first three position four-way directional control valve
1, the second three position four-way directional control valve 3 and hydraulic motor 4.Wherein: the oil inlet P of second three position four-way directional control valve 3 is through oil circuit
It is connect with the first actuator port A of first three position four-way directional control valve 1, the first work of second three position four-way directional control valve 3
Make hydraulic fluid port A and is connect through oil circuit with the second actuator port B of first three position four-way directional control valve 1.The hydraulic motor 4 is for driving
It bores and returns under the drilling rod of dynamic horizontal directional drilling machine and drag, in which: one end of the hydraulic motor 4 is through oil circuit and described one or three four
First actuator port A connection of logical reversal valve 1, the other end of the hydraulic motor 4 are changed through oil circuit and first 3-position 4-way
The second actuator port B connection to valve 1.
In certain embodiments, the oil inlet P of second three position four-way directional control valve 3 and first 3-position 4-way
Oil circuit between first actuator port A of reversal valve 1 is equipped with throttle valve 2.
The course of work of horizontal directional drilling machine hydraulic control system provided by the invention is as follows:
When need to control bored under drilling rod when, control the first three position four-way directional control valve 1 control electromagnet DT1 obtain it is electric, simultaneously
The control electromagnet DT3 power loss of the second three position four-way directional control valve 3 is controlled (so that the second three position four-way directional control valve 3 is in disconnected
Open state).The oil inlet P of hydraulic oil from the first three position four-way directional control valve 1 enters to the first three position four-way directional control valve 1, then certainly
First actuator port A of the first three position four-way directional control valve 1 flows out and flows into hydraulic motor 4 along oil circuit to drive hydraulic motor 4
Rotate clockwise with realize it is lower bore, then the second actuator port B through the first three position four-way directional control valve 1 flows back into the to hydraulic oil
One three position four-way directional control valve 1 and oil return inlet T through the first three position four-way directional control valve 1 returns to fuel tank.Drilling rod shape in going down process
At certain flexible deformation.
When stopping lower boring, the control electromagnet DT1 power loss of the first three position four-way directional control valve 1 is controlled, while controlling the two or three
The control electromagnet DT3's of position and four-way reversing valve 3 obtains electric (so that the second three position four-way directional control valve 3 is connected).At this point, drilling rod
Flexible deformation discharge rapidly, first three position four-way directional control valve 1 commutates, in hydraulic oil from its second actuator port B
It is split to hydraulic motor 4 and second three position four-way directional control valve 3 is flowed to, hydraulic oil is finally back to the first 3-position 4-way and changes
Fuel tank is returned to valve 1 and through its oil return inlet T.
As it can be seen that second three position four-way directional control valve 3 and the hydraulic motor 4 are connected in parallel on described first in the present invention
On two actuator ports of three position four-way directional control valve 1.The hydraulic oil generated during the release of drilling rod elastic force is split to the two or three
Fuel tank is flow back into again after position and four-way reversing valve 3 and hydraulic motor 4.Therefore the hydraulic oil generated during the release of drilling rod elastic force will not
Hydraulic motor 4 is caused to impact suddenly, to prevent 4 high speed reverse rotation of hydraulic motor, finally protect hydraulic motor 4 and connect with it
The decelerating motor connect.Throttling 2 mainly controls the speed of elastic force release by adjusting the flow velocity of hydraulic oil in figure.
The description with certain particularity detailed enough has been carried out to the present invention above.Ordinary skill in fields
Personnel are it should be understood that the description in embodiment is only exemplary, before without departing from true spirit and scope of the present invention
Put make it is all change all should belong to protection scope of the present invention.Scope of the present invention is by the power
What sharp claim was defined, rather than limited by the foregoing description in embodiment.
Claims (2)
1. a kind of horizontal directional drilling machine hydraulic control system, characterized in that it comprises:
First three position four-way directional control valve；
Second three position four-way directional control valve, wherein the oil inlet of second three position four-way directional control valve is through oil circuit and described one or three
First actuator port of four-way reversing valve connects, the first actuator port of second three position four-way directional control valve through oil circuit with it is described
Second actuator port of the first three position four-way directional control valve connects；
Hydraulic motor, the hydraulic motor is used to drive to bore and return under the drilling rod of horizontal directional drilling machine and drag, wherein the hydraulic horse
The one end reached is connect through oil circuit with the first actuator port of first three position four-way directional control valve, the other end of the hydraulic motor
It is connect through oil circuit with the second actuator port of first three position four-way directional control valve.
2. horizontal directional drilling machine hydraulic control system as described in claim 1, which is characterized in that second 3-position 4-way changes
To valve oil inlet and first three position four-way directional control valve the first actuator port between oil circuit be equipped with throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207771.2A CN109469666A (en) | 2018-10-17 | 2018-10-17 | A kind of horizontal directional drilling machine hydraulic control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207771.2A CN109469666A (en) | 2018-10-17 | 2018-10-17 | A kind of horizontal directional drilling machine hydraulic control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109469666A true CN109469666A (en) | 2019-03-15 |
Family
ID=65665036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811207771.2A Pending CN109469666A (en) | 2018-10-17 | 2018-10-17 | A kind of horizontal directional drilling machine hydraulic control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109469666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247003A1 (en) * | 2021-05-25 | 2022-12-01 | 三一重机有限公司 | Motor assembly, walking drive system, and work machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986001494A1 (en) * | 1984-09-06 | 1986-03-13 | Kroell Fridtjof Berg | Hydraulic rotates system for swing crane |
| JP2001316081A (en) * | 2000-05-09 | 2001-11-13 | Sumitomo Heavy Industries Construction Crane Co Ltd | Revolving hydraulic circuit for construction machine |
| CN102865262A (en) * | 2012-09-07 | 2013-01-09 | 三一重工股份有限公司 | Rotary hydraulic system and engineering machine |
| CN203879825U (en) * | 2014-04-29 | 2014-10-15 | 三一汽车制造有限公司 | Cantilever crane rotation hydraulic system and concrete conveying pump device |
| WO2016121185A1 (en) * | 2015-01-29 | 2016-08-04 | 株式会社タダノ | Rotation control device |
| CN209195868U (en) * | 2018-10-17 | 2019-08-02 | 江苏谷登工程机械装备有限公司 | A kind of horizontal directional drilling machine hydraulic control system |
-
2018
- 2018-10-17 CN CN201811207771.2A patent/CN109469666A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986001494A1 (en) * | 1984-09-06 | 1986-03-13 | Kroell Fridtjof Berg | Hydraulic rotates system for swing crane |
| JP2001316081A (en) * | 2000-05-09 | 2001-11-13 | Sumitomo Heavy Industries Construction Crane Co Ltd | Revolving hydraulic circuit for construction machine |
| CN102865262A (en) * | 2012-09-07 | 2013-01-09 | 三一重工股份有限公司 | Rotary hydraulic system and engineering machine |
| CN203879825U (en) * | 2014-04-29 | 2014-10-15 | 三一汽车制造有限公司 | Cantilever crane rotation hydraulic system and concrete conveying pump device |
| WO2016121185A1 (en) * | 2015-01-29 | 2016-08-04 | 株式会社タダノ | Rotation control device |
| CN209195868U (en) * | 2018-10-17 | 2019-08-02 | 江苏谷登工程机械装备有限公司 | A kind of horizontal directional drilling machine hydraulic control system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022247003A1 (en) * | 2021-05-25 | 2022-12-01 | 三一重机有限公司 | Motor assembly, walking drive system, and work machine |
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