CN201071722Y - Pedrail self-propelled tunnel drilling rig hydraulic system - Google Patents
Pedrail self-propelled tunnel drilling rig hydraulic system Download PDFInfo
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- CN201071722Y CN201071722Y CNU2007200324631U CN200720032463U CN201071722Y CN 201071722 Y CN201071722 Y CN 201071722Y CN U2007200324631 U CNU2007200324631 U CN U2007200324631U CN 200720032463 U CN200720032463 U CN 200720032463U CN 201071722 Y CN201071722 Y CN 201071722Y
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Abstract
The utility model is a hydraulic system of a self-propelled track underground drill. In the prior art, the transportation of a full-hydraulic underground drill mainly depends on manual handling or gait-model mechanisms for short-distance movement, so that the method of power rotary drilling at orifice can only be adopted with manual variable to control rotary speed and torque with problems of control delay, low control accuracy, and low hydraulic system efficiency, etc. The hydraulic system of the self-propelled track underground drill of the utility model comprises a track walking return circuit, a power head rotary return circuit, a feeding extraction return circuit, a underground drill stable return circuit and a brake return circuit of power head main shaft, so as to realize functions of straight line walk, turning, and U-turn of the underground drill, rotation and feed of the power head, linkage of a chuck and a clamp fastener with feed and extraction, and flotation of braking and feeding oil cylinder of a gyrator main shaft etc, and hydraulic feedback control system and linkage function are adopted, therefore the underground drill is provided with fast and convenient transportation, low labour intensity, adaptable drilling technology of the underground drill, simple operation and systematic energy conservation.
Description
Technical field
The utility model relates to the boring mechanic class, is a kind of caterpillar belt self-walking type tunnel drilling rig hydraulic system specifically.
Background technology
The resettlement of all-hydraulic tunnel drilling rig at present mainly relies on a dead lift or walking mechanism short distance to move, can only adopt the mode of aperture power rotary drilling, and adopt manual variables manner to carry out the control of rotating speed and moment of torsion, have problems such as control hysteresis, control accuracy is low, hydraulic system efficient is low.
Summary of the invention
The purpose of this utility model is to provide a kind of have handiness, control accuracy height, swift caterpillar belt self-walking type tunnel drilling rig hydraulic system.
In order to achieve the above object, the technical solution adopted in the utility model is:
Caterpillar belt self-walking type tunnel drilling rig hydraulic system comprises that rig supports firm oil cylinder 18, left and right running motor 6,7, unit head motor 8, feeds oil cylinder 9, chuck 26, clamper 34, and its special character is: the hydraulic circuit of described hydraulic system is:
One group of two pump, its input are connected fuel tank through oil suction oil filter 2 with secondary oil suction oil filter 14 respectively;
Wherein the output of main oil pump 3 connects main multiple directional control valve 5 through pipeline, described main multiple directional control valve 5 preceding two pipelines are connected with the left and right running motor 6,7 of control, be used for controlling running motor, the thribble road is connected with 8 revolutions of unit head motor, be used to control the revolution of unit head motor, the tetrad pipeline with feed oil cylinder 9 and be connected, be used for control and feed oil cylinder;
The output of its auxiliary oil pump 13 is shunted function switching valve 15 through auxiliary pump, enters respectively to be used to control the secondary multiple directional control valve 17 that supports firm oil cylinder 18 and be used to control the drilling operation reversal valve 29 that feeds oil cylinder 9;
At the input parallel connection that the feeds oil cylinder 9 function switching valve 35 that makes a trip, its output through pilot operated directional control valve 39 respectively with chuck 26, working connection plate in 32 hydraulic control one-way valve be connected with hydraulic control choke valve 36, can realize chuck 26 and clamper 34 and the interlock function that feeds oil cylinder;
At the two ends of unit head motor 8, behind one way valve, be connected respectively with chuck 26, realize the interlock between revolution of unit head motor and the chuck.
Above-mentioned main oil pump 3 is a load sensitive pump.
Above-mentioned auxiliary oil pump 13 is the constant pressure type variable pump.
Above-mentioned main multiple directional control valve 5 possesses the load feedback function.
Above-mentioned main multiple directional control valve 5 is the tetrad multiple directional control valve, wherein feeds oil cylinder 9 control connection and is O type function, and all the other are y-function.
Two of the left and right running motor 6,7 of control are provided with uniform-pressure-drop valve in the above-mentioned main multiple directional control valve 5.
The above-mentioned two ends that feed oil cylinder 9 hydraulic control break-make in parallel choke valve 41.
Two outputs of the above-mentioned function switching valve 35 that the makes a trip hydraulic control on-off valve 39 of connecting respectively.
Above-mentioned drilling operation reversal valve is connected with the two ends that feed oil cylinder 9, is the three-position four-way valve of O type function for the meta function.
The utility model is as follows with respect to the advantage of prior art: load-sensitive technology, constant-pressure variable technology and hydraulic pressure are far controlled used this drilling rig hydraulic system, have handiness, energy-conservation, characteristics such as control is convenient, control accuracy is high, reaction is fast.
Description of drawings
Fig. 1 is the caterpillar belt self-walking type tunnel drilling rig hydraulic system schematic diagram;
Label declaration:
The 1-motor; 2-main pump oil suction oil filter; The 3-main oil pump; 4-main pump system pressure table; 5-master's multiple directional control valve; The 6-left lateral is walked motor; The 7-right lateral is walked motor; 8-unit head motor; 9-feeds oil cylinder; The 10-cooler; 11-master's return filter; 12-return pressure table; The 13-auxiliary oil pump; The secondary oil suction oil filter of 14-; 15-auxiliary pump shunting function switching valve; 16-auxiliary pump system pressure table; The secondary multiple directional control valve of 17-; 18-supports firm oil cylinder; The 19-hydraulic lock; 20-is far controlled valve; The 21-safety valve; The 22-overflow valve; The 23-reducing valve; 24-creeps into mode function switching valve; 25-feed pressure table; The 26-chuck; The 27-enclasp device; The smart oil filter of 28-; 29-drilling operation reversal valve; The 30-cooler; The secondary oil return oil filter of 31-; 32-working connection plate; The 33-folder changes interlock function switching valve; The 34-clamper; The 35-function switching valve that makes a trip; 36-hydraulic control choke valve; The 37-stop valve; 38-rises and pulls out pressure meter; The 39-pilot operated directional control valve; 40-hydraulic control on-off valve; 41-hydraulic control break-make choke valve.
The specific embodiment
The present invention selects advanced in performance load sensitive pump and constant pressure variable displacement pump to form the power set of native system, and has used pilot operated directional control valve and remote control technology, and utilizes the annexation between the multiple valve to form the interlock action, to adapt to different drilling operations.
The present invention has adopted load sensitive pump 3 and has possessed the multiple directional control valve 5 of load feedback function.Preceding two couplings of wherein being furnished with uniform-pressure-drop valve are in control running motor 6,7, realize the straight line moving of rig, function such as turn round, turn around.The 3rd coupling feeds the fast moving of oil cylinder in the control of control unit head unit head motor 26, the tetrads.Wherein load-sensitive valve is controlled with control valve 20 far away.
Native system has also adopted the auxiliary oil pump 13 with constant-pressure variable, can pass through secondary multiple directional control valve 17, realizes supporting the adjusting of firm oil cylinder.Simultaneously can also feed oil cylinder 9 fuel feeding.
At the two ends that feed oil cylinder 9 hydraulic control break-make in parallel choke valve 41, can realize floating of oil cylinder.
At the output series connection hydraulic control on-off valve 40 of the function switching valve that makes a trip, realize the oil return of chuck 26.
Referring to Fig. 1, hydraulic system double pump open type hydraulic system, its operating principle is as follows:
After motor 1 started, main oil pump 3 sucked low pressure oil through main pump oil suction oil filter 2, and the hydraulic oil of output enters main multiple directional control valve 5, the pressure of main pump system pressure table 4 indication main oil pump 3.Main multiple directional control valve 5 is made up of tetrad, and a left side is played the first joint control system left lateral and walked the just commentaries on classics of motor 6, reverses and stop; A left side is played the second joint control system right lateral and is walked the just commentaries on classics of motor 7, reverses and stop; Right play the second linkage control braking power head horse and reach 8 just commentaries on classics, reverse and stop; The right first joint control system that rises feeds advancing, retreat and stopping of oil cylinder 9.When quadruple valve all is in meta, main oil pump off-load, unit head motor 8 and feed oil cylinder 9 and be in quick condition, running motor 6,7 automatic brakes.The main oil pump oil return is got back to fuel tank through cooler 10 and main oil return oil filter 11, return pressure table 12 indication return pressure.Auxiliary oil pump 13 sucks low pressure oil through secondary oil suction oil filter 14, and the hydraulic oil of output is to auxiliary pump shunting function switching valve 15, and auxiliary pump system pressure table 16 is indicated auxiliary pump pressure.This valve places anteposition, and the auxiliary pump hydraulic oil is to secondary multiple directional control valve 17, and secondary multiple directional control valve 17 is become by eight joint groups, controls eight respectively and supports stretching, contract, stopping of firm oil cylinder 18, and its firm pressure keeps by hydraulic lock 19.When nine valves all are in meta, the auxiliary pump off-load.Auxiliary pump shunting function transforms valve 15 and places the position, back, and hydraulic oil enters safety valve 21, overflow valve 22, reducing valve 23, limits or regulates the auxiliary pump feed pressure, creeps into mode function switching valve 24 when placing meta, the auxiliary pump off-load.Creep into mode switching valve 24 when placing anteposition, for the auxiliary pump overflow feeds, the pressure oil of auxiliary pump all entered and fed the loop this moment, controlled the size of feed pressure by regulating overflow valve 22, and its value is indicated by feed pressure table 25.Creep into mode switching valve 24 and place the position, back, for decompression feeds.The charge oil pressure of chuck 26 is identical with motor operations pressure, and it is not enough that the chuck clamping force shows slightly, thereby cause that drilling rod skids.For guaranteeing that chuck tightens drilling rod reliably, to creep into mode function switching valve 24 and place the position, back, and overflow valve 22 cuts out, make the pressure oil of auxiliary pump be divided into two-way, this operation also is realize to adopt when motor creeps at the bottom of the hole, make the gyrator braking to enclasp device 27 fuel feeding: the one tunnel directly enters oild chuck, and the operating pressure that makes chuck is the system pressure of auxiliary pump, guarantees that chuck tightens drilling rod reliably; Another road enters through reducing valve 23 and feeds the loop, with the size of reducing valve 23 adjusting feed pressures.The auxiliary pump oil return is directly got back to fuel tank through cooler 30 and secondary oil return oil filter 31.
During unit head motor 8 revolution, a part of hydraulic oil of rotation oil in working connection plate 32 the one way valve group and smart oil filter 28 after enter chuck 26, chuck is clamped automatically.In addition, when folder changes interlock function switching valve 33 and places the interlock position, the pressure oil that drives unit head motor 8 also again a branch part enter clamper 34 and make it to unclamp.
Unclamping by the hydraulic control one-way valve and the choke valve of one group in the working connection plate 32 series connection of oild chuck controlled.When the needs oild chuck unclamps,, the oild chuck draining is unclamped by opening return check valve from feeding or rise the pressure control oil that pulls out the loop.
Drilling operation reversal valve 29 is a three-position four-way valve, can realize feeding in the normal drilling process feeding, stop and rising and pull out of oil cylinder 9 by this valve.Wherein feed, rise pull out pressure respectively by feed pressure table 25, rise and pull out pressure meter 38 and show.
The function that makes a trip switching valve 35 is three-position four-way valve, can change oild chuck, clamper and feed the interlock mode of oil cylinder by this valve.Rise, the switching valve that will link earlier when boring down places the relevant position to pull out of hole or bores down, operate the handgrip of drilling operation reversal valve 29 then in the same way, the opening and closing movement that can control oild chuck, clamper in phase and the action that moves forward and backward that feeds oil cylinder have been finished, tripping operation.Feeding hydraulic control choke valve 36 of series connection on the flowline of oil cylinder, the back pressure that is used to regulate oil cylinder.The function that makes a trip switching valve 35 outlet series connection pilot operated directional control valves are used for chuck, clamper and feed the coordination of oil cylinder 9.
Folder changes interlock function switching valve 33 and is used to the interlock controlling chuck, clamper and feed oil cylinder, motor and separates.Folder commentaries on classics interlock function switching valve 33 places the next, and chuck, clamper and oil motor interlock are pressed from both sides to change and linked.Interlock function switching valve 33 is in upper, and folder changes interlock to be separated, chuck, clamper with feed oil cylinder and link.Interlock function switching valve 33 places meta, and the clamper oil circuit is in closed condition.Stop valve 37 is the clamper shut off valve, can keep the normally open of clamper.
The hydraulic system of the utility model caterpillar belt self-walking type tunnel drilling rig has adopted hydraulic pressure feedback control system and interlock function, thereby rig mover is rapid, convenient and labour intensity is low, strong and simple to operate, the energy saving of system of rig drilling technology compliance.
Claims (9)
1. caterpillar belt self-walking type tunnel drilling rig hydraulic system, comprise that rig supports firm oil cylinder (18), left and right running motor (6) (7), unit head motor (8), feeds oil cylinder (9), chuck (26), clamper (34), it is characterized in that: the hydraulic circuit of described hydraulic system is:
One group of two pump, its input are connected fuel tank through oil suction oil filter (2) with secondary oil suction oil filter (14) respectively;
Wherein the output of main oil pump (3) connects main multiple directional control valve (5) through pipeline, preceding two pipelines of described main multiple directional control valve (5) are connected with control left and right running motor (6) (7), be used for controlling running motor, the thribble road is connected with unit head motor (8) revolution, be used to control the revolution of unit head motor, the tetrad pipeline with feed oil cylinder (9) and be connected, be used for control and feed oil cylinder;
The output of its auxiliary oil pump (13) enters the secondary multiple directional control valve (17) that is used for the control firm oil cylinder of support (18) respectively and is used for the drilling operation reversal valve (29) that control feeds oil cylinder (9) through auxiliary pump shunting function switching valve (15);
At the input parallel connection that feeds oil cylinder (9) the function switching valve (35) that makes a trip, its output through pilot operated directional control valve (39) respectively with chuck (26), working connection plate in the hydraulic control one-way valve of (32) be connected with hydraulic control choke valve (36), can realize chuck (26) and clamper (34) and the interlock function that feeds oil cylinder;
Two ends in unit head motor (8) are connected with chuck (26) behind one way valve respectively, realize the interlock between revolution of unit head motor and the chuck.
2. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: described main oil pump (3) is a load sensitive pump.
3. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: described auxiliary oil pump (13) is the constant pressure type variable pump.
4. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: described main multiple directional control valve (5) possesses the load feedback function.
5. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: described main multiple directional control valve (5) is the tetrad multiple directional control valve, wherein feeds oil cylinder (9) control connection and is O type function, and all the other are y-function.
6. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: two of control left and right running motor (6) (7) are provided with uniform-pressure-drop valve in the described main multiple directional control valve (5).
7. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: the two ends hydraulic control break-make choke valve (41) in parallel that feeds oil cylinder (9).
8. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: two outputs of the function that makes a trip switching valve (35) the hydraulic control on-off valve (39) of connecting respectively.
9. the hydraulic system of caterpillar belt self-walking type rig according to claim 1 is characterized in that: the drilling operation reversal valve is connected with the two ends that feed oil cylinder (9), is the three-position four-way valve of O type function for the meta function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200324631U CN201071722Y (en) | 2007-08-08 | 2007-08-08 | Pedrail self-propelled tunnel drilling rig hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200324631U CN201071722Y (en) | 2007-08-08 | 2007-08-08 | Pedrail self-propelled tunnel drilling rig hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201071722Y true CN201071722Y (en) | 2008-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200324631U Expired - Lifetime CN201071722Y (en) | 2007-08-08 | 2007-08-08 | Pedrail self-propelled tunnel drilling rig hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201071722Y (en) |
-
2007
- 2007-08-08 CN CNU2007200324631U patent/CN201071722Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: XI'AN RESEARCH INSTITUTE OF CHINA COAL TECHNOLOGY Free format text: FORMER NAME: SIAN BRANCH OF CHINA COAL RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 710077 No. 82, Kam Yip Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee after: Xi'an Research Institute, CCTEG Address before: 710077 No. 82, Kam Yip Road, hi tech Industrial Development Zone, Shaanxi, Xi'an Patentee before: Sian Branch Of China Coal Research Institute |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080611 |
|
| CX01 | Expiry of patent term |