CN114483682A - Double-rock drill anchor rod trolley and hydraulic rotation control system - Google Patents
Double-rock drill anchor rod trolley and hydraulic rotation control system Download PDFInfo
- Publication number
- CN114483682A CN114483682A CN202210095899.4A CN202210095899A CN114483682A CN 114483682 A CN114483682 A CN 114483682A CN 202210095899 A CN202210095899 A CN 202210095899A CN 114483682 A CN114483682 A CN 114483682A
- Authority
- CN
- China
- Prior art keywords
- reversing valve
- port
- oil
- valve
- 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
- 239000011435 rock Substances 0.000 title claims abstract description 47
- 230000009977 dual effect Effects 0.000 claims description 9
- 230000007935 neutral effect Effects 0.000 claims 2
- 239000003921 oil Substances 0.000 description 204
- 238000005553 drilling Methods 0.000 description 10
- 238000004891 communication Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Images
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
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D20/00—Setting anchoring-bolts
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a double-rock drill anchor rod trolley and a hydraulic rotary control system, wherein the double-rock drill hydraulic rotary control system comprises an oil tank, a first motor, a second motor, a hydraulic loop and a hydraulic driving piece, wherein the hydraulic loop is connected with the oil tank, the first motor and the second motor; the hydraulic circuit comprises a second reversing valve, a third reversing valve and a multi-way reversing valve connected between the second reversing valve and the third reversing valve and the hydraulic driving piece, two oil outlets of the multi-way reversing valve are respectively connected with an oil inlet of the second reversing valve and an oil inlet of the third reversing valve, and the first motor and the second motor are connected between the second reversing valve and the third reversing valve in parallel. The hydraulic rotary control system can meet different driving requirements of two groups of motors of the double-rock drill, simplifies the hydraulic drive control system, is simple to operate, and facilitates hydraulic pipeline arrangement.
Description
Technical Field
The invention relates to the field of hydraulic control, in particular to a hydraulic rotary control system of a double rock drill. The invention also relates to a double rock drill anchor rod trolley with the double rock drill hydraulic rotary control system.
Background
The anchor rod trolley is key equipment for anchor rod support construction and is used for drilling anchor rod holes in scenes such as underground roadways and the like and completing the working procedures of partially or completely installing anchor rods.
Along with popularization and development of anchor rod supporting operation of underground engineering such as mine roadways, tunnels and the like, trolley type anchor rod drilling and loading vehicles with full functions and high automation degree are successively released by various overseas large mining equipment companies, and high mechanization and intellectualization of anchor rod supporting construction are really realized, so that the burden of workers is reduced, and the working efficiency and the construction quality are improved.
In modern anchor bolt support construction, a single-arm anchor bolt trolley is often adopted for anchor bolt support, the anchor bolt trolley is only provided with a rock drill, a switching device is used for switching a drill rod and an anchor bolt so as to achieve the purposes of drilling holes and installing anchor bolts of the rock drill, and the efficiency is low. In order to improve the anchor rod supporting efficiency, the double-rock drill anchor rod trolley is delivered. The double-rock drill anchor rod trolley is characterized in that a drilling rock drill and an anchor rod rock drill are simultaneously installed on one propelling beam, the drilling rock drill and the anchor rod rock drill do not work simultaneously, and one rock drill is used for drilling holes while the other rock drill is used for installing an anchor rod through a switching function. Because the function of rock drilling and anchor bolt support is different, two rock drill rotary motors dispose differently, two sets of hydraulic pressure gyration operating systems that are equipped with usually, hydraulic component is many, and occupation space is big, is unfavorable for hydraulic circuit to arrange, the stock platform truck lightweight design of being not convenient for, and the action bars are numerous on the operation panel, operate complicatedly.
Therefore, how to simplify the hydraulic control system of the double rock drill bolting jumbo becomes a technical problem which needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
The invention aims to provide a hydraulic rotary control system of double rock drills, which can meet different driving requirements of two groups of motors of the double rock drills, simplify the hydraulic drive control system, is simple to operate and facilitates the arrangement of hydraulic pipelines. Another object of the present invention is to provide a dual rock drill jumbo employing the dual rock drill hydraulic swing control system.
In order to achieve the above object, the present invention provides a hydraulic swing control system for a dual rock drill, including an oil tank, a first motor, a second motor, a hydraulic circuit connecting the oil tank with the first motor and the second motor, and a hydraulic driving member connected to the hydraulic circuit and used for pumping pressure oil to the first motor and the second motor to drive the first motor and the second motor to rotate respectively;
the hydraulic circuit comprises a second reversing valve, a third reversing valve and a multi-way reversing valve connected between the second reversing valve and the third reversing valve and the hydraulic driving piece, two oil outlets of the multi-way reversing valve are respectively connected with an oil inlet of the second reversing valve and an oil inlet of the third reversing valve, and the first motor and the second motor are connected between the second reversing valve and the third reversing valve in parallel.
Optionally, the hydraulic circuit includes a first oil inlet branch and a first oil return branch connected to the first motor, and a second oil inlet branch and a second oil return branch connected to the second motor, two oil outlets of the multi-way directional valve are respectively an opening a and an opening B, and an oil inlet of the second directional valve and an oil inlet of the third directional valve are both openings P thereof;
the port P of the multi-way reversing valve is connected with the hydraulic driving piece, the port T of the multi-way reversing valve is connected with the oil tank, the port A of the multi-way reversing valve is connected with the port P of the second reversing valve, and the port B of the multi-way reversing valve is connected with the port P of the third reversing valve;
the first oil inlet branch is connected with the port A of the second reversing valve, the first oil return branch is connected with the port A of the third reversing valve, the second oil inlet branch is connected with the port B of the second reversing valve, and the second oil return branch is connected with the port B of the third reversing valve.
Optionally, the multiple directional control valve is provided with a middle position oil outlet, and a first oil return branch is connected between the middle position oil outlet and the oil tank.
Optionally, a second oil return branch is connected between the port P of the second reversing valve and the first oil return branch, and the second oil return branch is provided with a first overflow valve;
and a third oil return branch is connected between the port P of the third reversing valve and the first oil return branch, and the third oil return branch is provided with a second overflow valve.
Optionally, a fourth oil return branch is connected between the first oil inlet branch and the oil tank, and the fourth oil return branch is provided with a third overflow valve;
and a fifth oil return branch is connected between the first oil return branch and the oil tank and provided with a fourth overflow valve.
Optionally, a first reversing valve is arranged between the hydraulic driving piece and the multiple-way reversing valve, and a port P of the first reversing valve is connected with the hydraulic driving piece;
the port A of the first reversing valve is connected with the port P of the multi-way reversing valve, and a first throttling valve is arranged between the port A of the first reversing valve and the port P of the multi-way reversing valve;
and the port B of the first reversing valve is connected with the port P of the multi-way reversing valve, and a second throttling valve is arranged between the port B of the first reversing valve and the port P of the multi-way reversing valve.
Optionally, the hydraulic drive comprises a hydraulic pump and an electric motor or engine driving the hydraulic pump to operate.
Optionally, a safety overflow valve is connected between oil outlets of the first throttle valve and the second throttle valve and the oil tank.
Optionally, a bypass is further disposed between the outlet of the hydraulic pump and the oil tank, and the bypass is provided with a flow control valve.
The invention also provides a double rock drill anchor rod trolley which comprises the double rock drill hydraulic rotary control system.
Compared with the prior art, the hydraulic rotary control system of the double rock drills provided by the invention utilizes the oil tank to supply oil and receive return oil, and the hydraulic driving piece conveys the oil pump of the oil tank to the hydraulic circuit and then to the multi-way reversing valve through the hydraulic circuit; when the multi-way reversing valve is controlled to supply oil to the second reversing valve, the second reversing valve and the third reversing valve are adjusted to drive the first motor connected between the second reversing valve and the third reversing valve to rotate forwards or drive the second motor to rotate forwards, return oil flows to the multi-way reversing valve from the third reversing valve, and the return oil is returned to the oil tank through the multi-way reversing valve; when the multi-way reversing valve is controlled to supply oil to the third reversing valve, the first motor which is connected with the second reversing valve and the third reversing valve in a driving mode is driven to rotate reversely, or the second motor is driven to rotate reversely, return oil flows to the multi-way reversing valve through the second reversing valve, and the multi-way reversing valve is conveyed back to the oil tank. The hydraulic rotation control system drives the first motor and the second motor to respectively rotate positively and negatively through the cooperation of the group of hydraulic driving circuits and the plurality of groups of reversing valves, simplifies the hydraulic circuits, and facilitates pipeline arrangement and operation control.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a system diagram of a hydraulic rotary control system of a double rock drilling machine according to an embodiment of the present invention.
Wherein:
1-motor, 2-hydraulic pump, 3-flow control valve, 4-first reversing valve, 5-first throttle valve, 6-second throttle valve, 7-damping component, 8-safety overflow valve, 9-one-way valve, 10-multi-way reversing valve, 11-first overflow valve, 12-second overflow valve, 13-second reversing valve, 14-third reversing valve, 15-third overflow valve, 16-fourth overflow valve, 17-first motor, 18-second motor and 19-oil tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, fig. 1 is a system diagram of a hydraulic rotary control system of a dual rock drilling machine according to an embodiment of the present invention. In the figure, the solid line indicates the drive oil passage of the hydraulic circuit, the broken line indicates the control oil passage, and K indicates the control input end of the control oil passage of the first to third directional control valves 14; a1 denotes an oil inlet (reverse oil outlet) for normal rotation of the first motor 17, and a2 denotes an oil outlet for normal rotation of the first motor 17; b1 is the oil inlet of the second motor 18 rotating forward, B2 represents the oil outlet of the second motor 18 rotating forward.
In the embodiment provided by the invention, the hydraulic driving part adopts a combination that the motor 1 drives the hydraulic pump 2, and the hydraulic pump 2 is used for pumping the pressure oil in the oil tank 19 to be transmitted to the hydraulic circuit. Considering that the first motor 17 is used to drive the drill rod to drill a hole and the second motor 18 is used to drive the bolt installation, the motor 1 is preferably an electric motor with adjustable speed, in view of the difference in the driving oil pressure of the dual rock drilling machine, i.e. the first motor 17 and the second motor 18. When the multi-way reversing valve 10, the second reversing valve 13 and the third reversing valve 14 are adjusted to supply oil to the first motor 17, the high-frequency operation of the speed regulating motor is adjusted at the same time; when the multi-way reversing valve 10, the second reversing valve 13 and the third reversing valve 14 are adjusted to the second motor 18, the relative low-frequency operation of the speed regulating motor is adjusted at the same time.
The principle of driving the first motor 17 and the second motor 18 to rotate forward and backward by the multi-way directional valve 10, the second directional valve 13, and the third directional valve 14, respectively, is as follows: oil is supplied to one oil inlet of the multi-way reversing valve 10 by using the hydraulic pump 2, one oil outlet of the multi-way reversing valve 10 is connected with an oil inlet of the second reversing valve 13, and the other oil outlet of the multi-way reversing valve 10 is connected with an oil inlet of the third reversing valve 14; an oil inlet and an oil outlet of the first motor 17 are respectively connected between an oil outlet of the second reversing valve 13 and an oil outlet of the third reversing valve 14, and an oil inlet and an oil outlet of the second motor 18 are respectively connected between another oil outlet of the second reversing valve 13 and another oil outlet of the third reversing valve 14.
It should be noted that the multi-way directional valve 10 further includes an oil return port, the oil return port is connected to the oil tank 19, and two oil outlets of the multi-way directional valve 10 can be alternatively communicated with the oil inlet and the oil outlet respectively; and the two oil outlets of the second reversing valve 13 and the third reversing valve 14 can be alternatively communicated with the oil inlets thereof. The oil inlet and the oil outlet are not absolute, but change before and after the direction change, namely the oil outlet can be used for oil inlet, and the oil inlet can be used for oil outlet or oil return.
When the oil inlet of the multi-way directional valve 10 is communicated with the oil outlet connected with the oil inlet of the second directional valve 13, the pressure oil flows from the hydraulic pump 2 to one oil outlet of the multi-way directional valve 10, flows to the oil inlet of the second directional valve 13 through the oil outlet, flows to the oil inlet of the first motor 17 from one oil outlet of the second directional valve 13, drives the first motor 17 to rotate forward, flows out from the oil outlet of the first motor 17, flows back to the other oil outlet of the multi-way directional valve 10 through the third directional valve 14, and flows back to the oil tank 19 from the oil outlet to the oil return port of the multi-way directional valve 10. When the oil inlet of the multi-way directional valve 10 is communicated with the oil outlet connected with the oil inlet of the third directional valve 14, the pressure oil flows from the hydraulic pump 2 to one oil outlet of the multi-way directional valve 10, flows to the oil inlet of the third directional valve 14 through the oil outlet, flows to the oil outlet of the first motor 17 from one oil outlet of the third directional valve 14, drives the first motor 17 to reversely rotate, flows out from the oil inlet of the first motor 17, flows back to the other oil outlet of the multi-way directional valve 10 through the second directional valve 13, and flows back to the oil tank 19 from the oil outlet to the oil return port of the multi-way directional valve 10. The same is true for the forward and reverse rotation of the second motor 18, and only the second reversing valve 13 and the third reversing valve 14 need to be synchronously adjusted to synchronously switch the oil inlets thereof to be communicated with the oil outlets of the other group.
Referring to fig. 1 specifically, the second directional valve 13 and the third directional valve 14 both include a port P, a port T, a port a, and a port B, and the port P of the second directional valve and the port B is an oil inlet, the port a and the port B are oil outlets and can be alternately communicated with the port P, respectively, and the port T is closed, that is, the second directional valve 13 and the third directional valve 14 are three-way directional valves. The multi-way reversing valve 10 also comprises a port P, a port T, a port A and a port B, the port P is used as an oil inlet and communicated with an oil outlet of the hydraulic pump 2, the port T is used as an oil return port, the port A and the port B are used as oil outlets, the port A is connected with the port P of the second reversing valve 13 as shown in the figure, the port B is connected with the port P of the third reversing valve 14, and the multi-way reversing valve 10 can be a four-way reversing valve. When the P and the A of the multi-way reversing valve 10 are conducted for oil inlet, the B and the T are synchronously conducted for oil return; when P and B are conducted to be used for oil feeding, A and T are conducted synchronously to be used for oil returning. Certainly, the multi-way directional valve 10 may further include a middle oil inlet and a middle oil outlet as required, the middle oil outlet is connected to the oil tank 19, and when the hydraulic pump 2 and the motor 1 are in the initial stage of starting operation and do not need to drive the first motor 17 and the second motor 18 to operate, the pressure oil directly flows back to the oil tank 19 through the first oil return branch via the middle oil inlet and the middle oil outlet of the multi-way directional valve 10.
The hydraulic circuit comprises a first oil inlet branch, a first oil return branch, a second oil inlet branch and a second oil return branch, the first oil inlet branch is connected between the port A of the second reversing valve 13 and the oil inlet of the first motor 17, and the first oil return branch is connected between the oil outlet of the first motor 17 and the port A of the third reversing valve 14; the second oil inlet branch is connected between the port B of the second reversing valve 13 and the oil inlet of the second motor 18, and the second oil return branch is connected between the port B of the third reversing valve 14 and the oil outlet of the second motor 18.
Further, the hydraulic circuit further comprises a second oil return branch and a third oil return branch, the second oil return branch is connected between a port P of the second reversing valve 13 and the first oil return branch, or between the port P of the second reversing valve 13 and the oil tank 19, and the second oil return branch is provided with a first overflow valve 11; and the third oil return branch is connected between the port P of the third reversing valve 14 and the first oil return branch or between the port P of the third reversing valve 14 and the oil tank 19, and the third oil return branch is provided with a second overflow valve 12. The arrangement of the first overflow valve 11 and the second oil return branch can effectively avoid the over-high oil pressure when the oil enters the P port of the second reversing valve 13; the second overflow valve 12 and the third oil return branch can effectively avoid the situation that the oil pressure is too high when the oil is fed from the port P of the third directional valve 14, so that the situation that the oil pressure is too high when the second motor 18 rotates forwards or reversely is avoided.
In addition, a fourth oil return branch is arranged between the first oil inlet branch and the oil tank 19, and the fourth oil return branch is provided with a third overflow valve 15; and a fifth oil return branch is arranged between the first oil return branch and the oil tank 19, and the fifth oil return branch is provided with a fourth overflow valve 16, so that the phenomenon that the oil inlet pressure is too high when the first motor 17 rotates forwards or backwards is avoided.
In consideration of the requirement of the first motor 17 and the second motor 18 for differentiating the rotation speed, the embodiment of the application further includes a first directional control valve 4 in the hydraulic circuit, the first directional control valve 4 is provided with a second directional control valve 13 and a third directional control valve 14, a port P of the first directional control valve 4 is connected to an oil outlet of the hydraulic pump 2, a port a of the first directional control valve 4 is connected to a port P of the multi-way directional control valve 10, a first throttle valve 5 is provided between the port a of the first directional control valve 4 and the port P of the multi-way directional control valve 10, and the first throttle valve 5 is used for regulating the flow to the first motor 17 so as to control the rotation speed; similarly, a second throttle valve 6 is arranged between the port B of the first reversing valve 4 and the port P of the multi-way reversing valve 10, and the second throttle valve 6 is used for regulating the flow to the second motor 18 so as to control the required revolution speed. The branches of the first throttling valve 5 and the second throttling valve 6 are connected in parallel, the node after the parallel connection is shown as a diagram PR, mutual influence is avoided, and a safety overflow valve 8 is arranged between the PR node and an oil tank 19 as required, so that oil pressure overpressure of the whole hydraulic system is avoided.
It should be noted that: the second and third direction valves 13, 14 and the first direction valve 4 are switched synchronously: when the three reversing valves are all positioned at a normal position, the hydraulic pump 2 drives the first motor 17 to rotate forwards or backwards, and the speed of the forward and reverse rotation of the first motor 17 is limited by the first throttle valve 5; when the three reversing valves are synchronously switched, the hydraulic pump 2 drives the second motor 18 to rotate forwards or reversely, and the forward and reverse rotation speeds of the second motor 18 are limited by the second throttle valve 6.
Preferably, a shunt bypass is further connected between the oil outlet of the hydraulic pump 2 and the oil tank 19, the shunt bypass flow control valve 3 is used for comparing the pressure difference between the front and the back of the first throttle valve 5 and the second throttle valve 6, and the flow control valve 3 is used for ensuring that the flow through the first throttle valve 5 and the second throttle valve 6 is constant, so that the oil outlet of the hydraulic pump 2 is shunted. Illustratively, the flow control valve 3 is a pilot operated valve, one pilot end of which is connected to the PR node through the damping assembly 7, and the opening degree of the flow control valve 3 is cooperatively controlled and adjusted by using pressure oil flowing through the damping assembly 7 from the PR node, so that the load fluctuation is reduced. The P port of the multi-way reversing valve 10 can be provided with a one-way valve 9 according to the requirement.
The first reversing valve 4, the second reversing valve 13 and the third reversing valve 14 can also adopt hydraulic control reversing valves, and the three are controlled and switched by ｃA control oil path led out from ｃA point K and are switched from ｃA P-A communication state to ｃA P-B communication state at the same time, or are switched from the P-B communication state to the P-A communication state at the same time. The outlet of the control oil line is likewise connected to the oil tank 19.
In the above embodiment, the multi-way reversing valve 10 is used for controlling forward rotation or reverse rotation of the first motor 17 and the second motor 18, the second reversing valve 13 and the third reversing valve 14 are used for controlling independent rotation of the first motor 17 or independent rotation of the second motor 18, and the first reversing valve 4 is used for providing corresponding rotation speeds for the first motor 17 and the second motor 18 in cooperation with the second reversing valve 13 and the third reversing valve 14. The specific working process is as follows:
in the initial state, K has no control oil source, the multi-way reversing valve 10 is positioned at the middle position, namely the stop position, the motor 1 starts to drive the hydraulic pump 2, high-pressure oil enters the first throttle valve 5 through the port P and the port A of the first reversing valve 4, reaches PR, passes through the port P1 and the port T1 and then flows back to the oil tank 19.
(1) When the port K has no control oil source, the first reversing valve 4, the second reversing valve 13 and the third reversing valve 14 are in normal positions, namely in ｃA P-A conduction state, because the port K has no control oil source.
1) When the multi-way directional valve 10 is located at an upper position, namely, at a positive rotation position, high-pressure oil of the hydraulic pump 2 flows through the port P and the port A of the first directional valve 4, flows through the first throttle valve 5, opens the one-way valve 9, then flows through the port P and the port A of the multi-way directional valve 10 and the port P and the port A of the second directional valve 13, reaches the port A1 of the first motor 17, further drives the first motor 17 to rotate positively, and hydraulic oil flowing out of the port A2 of the first motor 17 flows through the port A and the port P of the third directional valve 14, reaches the port B and the port T of the multi-way directional valve 10 and flows back to the oil tank 19.
2) When the multi-way directional control valve 10 is located at the lower position, namely, the reverse position, high-pressure oil of the hydraulic pump 2 flows through the port P and the port A of the first directional control valve 4, flows through the first throttle valve 5, opens the one-way valve 9, then flows through the port P and the port B of the multi-way directional control valve 10 and the port P and the port A of the third directional control valve 14, reaches the port A2 of the first motor 17, further drives the first motor 17 to reversely rotate, and hydraulic oil of the port A1 of the first motor 17 flows through the port A and the port P of the second directional control valve 13, reaches the port A and the port T of the multi-way directional control valve 10 and flows back to the oil tank 19.
Wherein the first throttle valve 5 is matched and adjusted to limit the forward and reverse rotation speed of the first motor 17, and the third relief valve 15 and the fourth relief valve 16 limit the highest revolution pressure of the forward and reverse rotation of the first motor 17, protecting the first motor 17.
(2) When the K port has a control oil source, the first reversing valve 4, the second reversing valve 13 and the third reversing valve 14 are reversed under the pressure of the control oil source, namely, the P-B conduction state is realized.
1) When the multi-way directional valve 10 is positioned at an upper position, namely, at a positive indexing position, high-pressure oil of the hydraulic pump 2 flows through the port P and the port B of the first directional valve 4, flows through the second throttle valve 6, opens the one-way valve 9, then flows through the port P and the port A of the multi-way directional valve 10 and the port P and the port B of the second directional valve 13, reaches the port B1 of the second motor 18, further drives the second motor 18 to rotate positively, and hydraulic oil of the port B2 of the second motor 18 flows through the port B and the port P of the third directional valve 14, reaches the port B and the port T of the multi-way directional valve 10 and flows back to the oil tank 19.
2) When the multi-way reversing valve 10 is located at the lower position, namely the reverse position, high-pressure oil of the hydraulic pump 2 flows through the port P and the port B of the first reversing valve 4, passes through the first throttling valve 5, opens the one-way valve 9, then passes through the port P and the port B of the multi-way reversing valve 10 and the port P and the port B of the third reversing valve 14, reaches the port B2 of the second motor 18, further drives the second motor 18 to reversely rotate, and hydraulic oil at the port B1 of the second motor 18 passes through the port B and the port P of the second reversing valve 13, reaches the port A and the port T of the multi-way reversing valve 10 and flows back to the oil tank 19.
Wherein the second throttle 6 defines the forward and reverse rotation speed of the second motor 18, and the first and second relief valves 11 and 12 define the highest revolution pressure of the forward and reverse rotation of the second motor 18, protecting the second motor 18.
The invention further provides a double-rock drill anchor rod trolley, and the hydraulic rotary control system of the double-rock drill is applied, wherein the first motor 17 is used for driving the drill rod to drill holes, the second motor 18 is used for carrying out anchor rod support, and other parts such as the driving system of the double-rock drill anchor rod trolley and the like can be arranged by referring to the prior art, so that the application is not repeated.
It should be noted that in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The double rock drill anchor bar trolley and the hydraulic rotary control system provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The hydraulic rotary control system of the double rock drills is characterized by comprising an oil tank, a first motor, a second motor, a hydraulic circuit, a hydraulic driving piece and a hydraulic control piece, wherein the hydraulic circuit is connected with the oil tank and the first motor and the second motor;
the hydraulic circuit comprises a second reversing valve, a third reversing valve and a multi-way reversing valve connected between the second reversing valve and the third reversing valve and the hydraulic driving piece, two oil outlets of the multi-way reversing valve are respectively connected with an oil inlet of the second reversing valve and an oil inlet of the third reversing valve, and the first motor and the second motor are connected between the second reversing valve and the third reversing valve in parallel.
2. The dual-rock drill hydraulic rotary control system of claim 1, wherein the hydraulic circuit includes a first oil inlet branch and a first oil return branch connected to a first motor, and a second oil inlet branch and a second oil return branch connected to a second motor, two oil outlets of the multi-way reversing valve are respectively an a port and a B port, and an oil inlet of the second reversing valve and an oil inlet of the third reversing valve are both P ports thereof;
the port P of the multi-way reversing valve is connected with the hydraulic driving piece, the port T of the multi-way reversing valve is connected with the oil tank, the port A of the multi-way reversing valve is connected with the port P of the second reversing valve, and the port B of the multi-way reversing valve is connected with the port P of the third reversing valve;
the first oil inlet branch is connected with the port A of the second reversing valve, the first oil return branch is connected with the port A of the third reversing valve, the second oil inlet branch is connected with the port B of the second reversing valve, and the second oil return branch is connected with the port B of the third reversing valve.
3. The hydraulic swing control system of a dual rock drill according to claim 2, wherein the multi-way directional control valve is provided with a neutral oil outlet, and a first oil return branch is connected between the neutral oil outlet and the oil tank.
4. The hydraulic rotary control system of a double rock drill according to claim 3, characterized in that a second oil return branch is connected between the port P of the second reversing valve and the first oil return branch, and the second oil return branch is provided with a first overflow valve;
and a third oil return branch is connected between the port P of the third reversing valve and the first oil return branch, and the third oil return branch is provided with a second overflow valve.
5. The hydraulic rotary control system of a double-rock drill according to claim 3, wherein a fourth oil return branch is connected between the first oil inlet branch and the oil tank, and the fourth oil return branch is provided with a third overflow valve;
and a fifth oil return branch is connected between the first oil return branch and the oil tank and provided with a fourth overflow valve.
6. The hydraulic swing control system of a double rock drill according to any one of claims 2-5, characterized in that a first reversing valve is arranged between the hydraulic drive and the multiple-way reversing valve, and a port P of the first reversing valve is connected with the hydraulic drive;
the port A of the first reversing valve is connected with the port P of the multi-way reversing valve, and a first throttling valve is arranged between the port A of the first reversing valve and the port P of the multi-way reversing valve;
and the port B of the first reversing valve is connected with the port P of the multi-way reversing valve, and a second throttling valve is arranged between the port B of the first reversing valve and the port P of the multi-way reversing valve.
7. A twin rock drill hydraulic swing control system according to claim 6 where the hydraulic drive includes a hydraulic pump and an electric motor or engine driving the operation of the hydraulic pump.
8. The dual-rock drill hydraulic swing control system of claim 7, wherein a safety relief valve is connected between the oil outlets of the first and second throttle valves and the oil tank.
9. A dual rock drill hydraulic swing control system as claimed in claim 8 wherein a bypass is provided between the outlet of the hydraulic pump and the tank, the bypass being provided with a flow control valve.
10. A dual rock drill jumbo comprising a dual rock drill hydraulic swing control system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095899.4A CN114483682A (en) | 2022-01-26 | 2022-01-26 | Double-rock drill anchor rod trolley and hydraulic rotation control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210095899.4A CN114483682A (en) | 2022-01-26 | 2022-01-26 | Double-rock drill anchor rod trolley and hydraulic rotation control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114483682A true CN114483682A (en) | 2022-05-13 |
Family
ID=81475648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210095899.4A Pending CN114483682A (en) | 2022-01-26 | 2022-01-26 | Double-rock drill anchor rod trolley and hydraulic rotation control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483682A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786610A (en) * | 2022-12-01 | 2023-03-14 | 北京首钢股份有限公司 | Tapping machine and control method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531038U (en) * | 2009-11-02 | 2010-07-21 | 北京海纳创为液压系统技术有限公司 | Sliding loader assistive hydraulic control valve |
| CN102336370A (en) * | 2010-07-26 | 2012-02-01 | 徐州重型机械有限公司 | Rotating hydraulic system of crane and its control method |
| CN103727076A (en) * | 2013-11-19 | 2014-04-16 | 徐州重型机械有限公司 | Hydraulic-controlled rotation control device and crane rotation system |
| CN207961096U (en) * | 2018-03-20 | 2018-10-12 | 马鞍山唐拓凿岩机械有限公司 | It is a kind of that there is anti-sticking and blank-run prevention function drilling rig hydraulic system |
| CN110848188A (en) * | 2019-12-19 | 2020-02-28 | 江苏凯宫隧道机械有限公司 | Rotary hydraulic system of shield tunneling machine assembling machine |
| CN111411999A (en) * | 2020-04-24 | 2020-07-14 | 浙江开山重工股份有限公司 | Hydraulic anchor rod drill carriage |
| CN113482979A (en) * | 2021-07-16 | 2021-10-08 | 中国铁建重工集团股份有限公司 | Control system for switching rock drill and jumbolter |
-
2022
- 2022-01-26 CN CN202210095899.4A patent/CN114483682A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201531038U (en) * | 2009-11-02 | 2010-07-21 | 北京海纳创为液压系统技术有限公司 | Sliding loader assistive hydraulic control valve |
| CN102336370A (en) * | 2010-07-26 | 2012-02-01 | 徐州重型机械有限公司 | Rotating hydraulic system of crane and its control method |
| CN103727076A (en) * | 2013-11-19 | 2014-04-16 | 徐州重型机械有限公司 | Hydraulic-controlled rotation control device and crane rotation system |
| CN207961096U (en) * | 2018-03-20 | 2018-10-12 | 马鞍山唐拓凿岩机械有限公司 | It is a kind of that there is anti-sticking and blank-run prevention function drilling rig hydraulic system |
| CN110848188A (en) * | 2019-12-19 | 2020-02-28 | 江苏凯宫隧道机械有限公司 | Rotary hydraulic system of shield tunneling machine assembling machine |
| CN111411999A (en) * | 2020-04-24 | 2020-07-14 | 浙江开山重工股份有限公司 | Hydraulic anchor rod drill carriage |
| CN113482979A (en) * | 2021-07-16 | 2021-10-08 | 中国铁建重工集团股份有限公司 | Control system for switching rock drill and jumbolter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115786610A (en) * | 2022-12-01 | 2023-03-14 | 北京首钢股份有限公司 | Tapping machine and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1178157B1 (en) | Hydraulic driving system for a civil engineering or construction machine. | |
| CN103649554A (en) | System for allocating fluid from multiple pumps to a plurality of hydraulic functions on a priority basis | |
| EP1795657B1 (en) | Hydraulic circuit for heavy construction equipment | |
| CN114483682A (en) | Double-rock drill anchor rod trolley and hydraulic rotation control system | |
| US5568727A (en) | Straight travelling apparatus for heavy construction equipment | |
| CN219672958U (en) | Hydraulic traveling driving system applied to digging and anchoring machine and digging and anchoring machine | |
| CN112283194A (en) | Multifunctional combined multi-way reversing valve for full-hydraulic tunnel drilling machine | |
| CN104454737B (en) | Sheet multiway valve hydraulic system used for mini excavator | |
| NO20161606A1 (en) | Downhole tractor comprising two or more hydraulic supply lines | |
| CN105805074A (en) | Three-pump confluence multi-way valve block and hydraulic excavator | |
| KR100961433B1 (en) | hydraulic system of construction equipment | |
| CN114718923A (en) | Anchor rod trolley and double-rock drill impact hydraulic control system thereof | |
| CN115370628A (en) | Rotary hydraulic system, rotary device and working machine | |
| CN105569111B (en) | Excavator hydraulic system | |
| CN220396145U (en) | Hydraulic diversion and confluence control system | |
| CN112943725B (en) | System and method for increasing through-flow capacity of reversing valve | |
| CN113864263B (en) | Single-handle controlled double-pump shunt system | |
| KR100307327B1 (en) | Confluent device of hydraulic construction equipment with hydraulic pumps | |
| CN215257046U (en) | Pump and valve combined electro-hydraulic switching control system | |
| CN215634049U (en) | Hydraulic system and hole drilling machine | |
| CN219953786U (en) | Double-speed hydraulic system of multi-motor driving rotary mechanism | |
| CN213511448U (en) | Multifunctional combined multi-way reversing valve for full-hydraulic tunnel drilling machine | |
| CN213116895U (en) | Double-hydraulic system of heading machine | |
| KR100225979B1 (en) | Apparatus for combining the inner flow in hydraulic equipment having two sets of hydraulic circuits | |
| KR101693822B1 (en) | hydraulic control system for construction machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |