CN204357812U - A kind of hydraulic system of rotary rig - Google Patents
A kind of hydraulic system of rotary rig Download PDFInfo
- Publication number
- CN204357812U CN204357812U CN201420783062.XU CN201420783062U CN204357812U CN 204357812 U CN204357812 U CN 204357812U CN 201420783062 U CN201420783062 U CN 201420783062U CN 204357812 U CN204357812 U CN 204357812U
- Authority
- CN
- China
- Prior art keywords
- valve
- way valve
- communicated
- oil
- selector valve
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
This application discloses a kind of hydraulic system of rotary rig, comprise the first selector valve of the multi-way valve of connection, the second selector valve, one-way valve group, interlock changing valve and four executive components.In this hydraulic system, by the cooperation of the first selector valve, the second selector valve, interlock changing valve and one-way valve group, when being controlled by the oil circuit of variable displacement motor control lever to the first selector valve, not only can the forward and backward of controlled variable motor, and chuck all can link clamping, and when rotating forward, clamp holder interlock is unclamped, during reversion, clamp holder interlock clamping; Controlled by the oil circuit of advance and retreat ram controls to the second selector valve, and coordinate interlock changing valve, not only can realize advance or the retrogressing of advance and retreat oil cylinder, chuck and clamp holder linkage action can also be made.Visible four executive components only need can complete combined operation by three operating handles, simplify operation, thus decrease misoperation, protect equipment, reduce potential safety hazard.
Description
Technical field
The utility model relates to mining machinery technical field, particularly a kind of hydraulic system of rotary rig.
Background technique
Rotary rig is widely used in creeping into of mine locating, railway, highway, bridge, water conservancy and hydropower, tunnel, well, anchor pole etc., and its conventional operation rotates and advances.Rotary rig generally includes four executive components: variable displacement motor, rotates for driving the unit head of rig; Advance and retreat oil cylinder, advances for driving the unit head of rig and retreats; Chuck, is arranged on drill power head, for clamping or unclamping drilling rod; Clamp holder, is arranged on drilling rig rail, for clamping or unclamping drilling rod with adjunction or dismounting drilling rod.The work of above four executive components is by HYDRAULIC CONTROL SYSTEM.
In the hydraulic control system of existing rotary rig, four way valve is adopted to control executive component, four way valve is the one of multi-way valve, each road valve individually controls an executive component, multi-way valve is the common valve body in market, four way valve carries out the control of the hydraulic circuit of every road valve by operating handle one to one, and every road valve all has three operation range.Visible, control four executive components needs to control at least four operating handles simultaneously, and each operating handle has three operation range, therefore when manipulating rotary rig, each action needs the cooperation of four operating handles, and complicated operation is loaded down with trivial details, and operator slightly neglect, misoperation will be there is, as when chuck and clamp holder clamping, operator's misoperation operating handle of controlled variable motor, makes variable displacement motor rotate, drilling rod then can be caused to reverse damage, even device damage; If clamp holder pine, can cause the drilling rod crept into drop, cause damage or potential safety hazard (when creeping into downwards, drilling rod can drop in inlet hole, can fall to ground and cause potential safety hazard time upwards) when getting drilling rod.In addition, when advance and retreat oil cylinder is in the lock state, when tight drilling rod or loose drilling rod (rotation of this process need variable displacement motor), drilling rod precession or screw out time all have certain displacement, to chuck, clamp holder, drilling rod even rig itself have certain damage.
In sum, how to solve existing hydraulic system operation complicated, easily cause misoperation, the problem of damage equipment, become those skilled in the art's problem demanding prompt solution.
Model utility content
In view of this, the purpose of this utility model is the hydraulic system providing a kind of rotary rig, to simplify the operation, reduces misoperation, proterctive equipment.
For achieving the above object, the utility model provides following technological scheme:
A hydraulic system for rotary rig, comprises variable displacement motor, chuck, advance and retreat oil cylinder and clamp holder, and described chuck is for often to open chuck, and described clamp holder is normally closed clamp holder, also comprises fuel tank, oil supplying device, one-way valve group, multi-way valve and interlock changing valve;
The two ends of described oil supplying device are communicated with described multi-way valve with described fuel tank respectively;
Described one-way valve group comprises the first one-way valve, second one-way valve, 3rd one-way valve, 4th one-way valve, 5th one-way valve, 6th one-way valve and floating plug, described first one-way valve, described second one-way valve, the outlet of described 4th one-way valve and described 5th one-way valve is interconnected, and outlet is all communicated with the small end oil through of described chuck and described floating plug, the outlet of described 3rd one-way valve and described 6th one-way valve, and outlet is communicated with the large end oil through of described floating plug, two bypass oil throughs of described floating plug are communicated with retreating to hold with the front inlet side of described advance and retreat oil cylinder respectively,
Described multi-way valve comprises the first selector valve and the second selector valve, the filler opening of described first selector valve is all communicated with described oil supplying device with the filler opening of described second selector valve, the main return opening of described multi-way valve is communicated with described fuel tank, first hydraulic fluid port of described first selector valve and the rotating forward end of described variable displacement motor, unclamping of described clamp holder are held and the import of described first one-way valve is all communicated with, and the pinching end of the second hydraulic fluid port of described first selector valve and the import of described second one-way valve, the reversion end of described variable displacement motor and described clamp holder is all communicated with;
The filler opening of described second selector valve is communicated with described oil supplying device, the front inlet side of the first hydraulic fluid port of described second selector valve and the described import of the 3rd one-way valve, the portlet of described floating plug and described advance and retreat oil cylinder is all communicated with, and the retrogressing end of the second hydraulic fluid port of described second selector valve and the described import of the 6th one-way valve, the large port of described floating plug and described advance and retreat oil cylinder is all communicated with;
First hydraulic fluid port of described interlock changing valve is communicated with the first hydraulic fluid port of described second selector valve, second hydraulic fluid port of described interlock changing valve is communicated with the second hydraulic fluid port of described second selector valve, 3rd hydraulic fluid port of described interlock changing valve and the inlet communication of described 5th one-way valve, the 4th hydraulic fluid port of described interlock changing valve is all connected with the described import of the 4th one-way valve, the end that unclamps of described clamp holder.
Preferably, in above-mentioned hydraulic system, described oil supplying device comprises main oil pump, auxiliary oil pump and dynamical element; Described dynamical element drives described main oil pump and the oil suction from described fuel tank of described auxiliary oil pump; Described main oil pump is arranged in parallel with described auxiliary oil pump and is all communicated with described fuel tank, and described main oil pump is communicated with the filler opening of described first selector valve, and described auxiliary oil pump is communicated with the filler opening of described second selector valve.
Preferably, in above-mentioned hydraulic system, also comprise interstage valve, the unclamping to hold of the outlet of described interstage valve and described clamp holder is communicated with, first import of described interstage valve is communicated with the first hydraulic fluid port of described first selector valve, second import of described interstage valve is communicated with the 4th hydraulic fluid port of described interlock changing valve, and the area of the spool of the first inlet of described interstage valve is greater than the area of the spool of described second inlet.
Preferably, in above-mentioned hydraulic system, also comprise the first throttle valve between the first hydraulic fluid port and described 6th one-way valve being arranged on described second selector valve.
Preferably, in above-mentioned hydraulic system, also comprise the second throttle be arranged between the 4th hydraulic fluid port of described interlock changing valve and described interstage valve.
Preferably, in above-mentioned hydraulic system, described multi-way valve is No. six valves, the first via valve of described No. six valves is described first selector valve, the two-way valve of described No. six valves is described second selector valve, and two hydraulic fluid ports of all the other four way valves of described No. six valves are communicated with hoist cylinder, supporting post stretch oil cylinder and two rotary reducers respectively.
Preferably, in above-mentioned hydraulic system, described multi-way valve is No. five valves, the first via valve of described No. five valves is described first selector valve, the two-way valve of described No. five valves is described second selector valve, and all the other three-way valves of described No. five valves are communicated with hoist cylinder, supporting post stretch oil cylinder and a rotary reducer respectively.
Preferably, in above-mentioned hydraulic system, also comprise the cooler between return opening and described fuel tank and return filter that are arranged on described multi-way valve.
Preferably, in above-mentioned hydraulic system, also comprise the smart oil purifier being arranged on described chuck inlet.
Preferably, in above-mentioned hydraulic system, described auxiliary oil pump is communicated with by the filler opening of relief valve with described second selector valve.
Compared with prior art, the beneficial effects of the utility model are:
In the hydraulic system of the rotary rig that the utility model provides, by the cooperation of the first selector valve of multi-way valve, the second selector valve, interlock changing valve and one-way valve group, when being controlled by the oil circuit of variable displacement motor control lever to the first selector valve, not only can the forward and backward of controlled variable motor, and no matter be rotate forward or reversion, chuck all can link clamping, and when rotating forward, clamp holder interlock is unclamped, during reversion, and clamp holder interlock clamping; Controlled by the oil circuit of advance and retreat ram controls to the second selector valve, and coordinate interlock changing valve, not only can realize advance or the retrogressing of advance and retreat oil cylinder, chuck and clamp holder linkage action can also be made; When only carrying out forward or reverse, oil circuit makes advance and retreat oil-tank floating, thus can carry out disassembling section to drilling rod, can not damage drilling rod and equipment because of the displacement of drilling rod.Visible four executive components only need can complete combined operation by three operating handle compounding practices; and when normally working; only need to manipulate one of them or two operating handles just can realize each action; simplify operation; thus decrease misoperation; protect equipment, reduce potential safety hazard.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The catenation principle figure of the hydraulic system of a kind of rotary rig that Fig. 1 provides for the utility model embodiment;
The variable displacement motor operating handle of the hydraulic system of a kind of rotary rig that Fig. 2 provides for the utility model embodiment is in fundamental diagram when rotating forward gear;
The variable displacement motor operating handle of the hydraulic system of a kind of rotary rig that Fig. 3 provides for the utility model embodiment is in fundamental diagram when reversing gear;
The advance and retreat ram controls of the hydraulic system of a kind of rotary rig that Fig. 4 provides for the utility model embodiment is in fundamental diagram during advance gear;
The advance and retreat ram controls of the hydraulic system of a kind of rotary rig that Fig. 5 provides for the utility model embodiment is in fundamental diagram when advance gear, interlock changing valve are sought loopholes under being in interlock;
Fundamental diagram when the advance and retreat ram controls of the hydraulic system of a kind of rotary rig that Fig. 6 provides for the utility model embodiment is in advance gear, the changing valve that links is in interlock trip-out gear;
The advance and retreat ram controls of the hydraulic system of a kind of rotary rig that Fig. 7 provides for the utility model embodiment is in fundamental diagram when retreating gear;
Fundamental diagram when the advance and retreat ram controls of the hydraulic system of a kind of rotary rig that Fig. 8 provides for the utility model embodiment is in and retreats gear, interlock changing valve is in interlock trip-out gear;
Fundamental diagram when the variable displacement motor operating handle of the hydraulic system of a kind of rotary rig that Fig. 9 provides for the utility model embodiment is in and rotates forward gear, advance and retreat ram controls is in advance gear, interlock changing valve is sought loopholes under being in interlock;
Floating plug in the one-way valve group of the hydraulic system of a kind of rotary rig that Figure 10 provides for the utility model embodiment is in structural representation during floating closed condition;
Floating plug in the one-way valve group of the hydraulic system of a kind of rotary rig that Figure 11 provides for the utility model embodiment is in structural representation during floating open mode.
In above-mentioned Fig. 1-Figure 11,1 is driving element, 2 is main oil pump, 3 is auxiliary oil pump, 4 is the first oil absorption filter, 5 is the second oil absorption filter, 6 is return filter, 7 is return pressure table, 8 is cooler, 9 is relief valve, 10 is auxiliary oil pump pressure gauge, 11 is main pump pressure regulator valve, 12 is main pump pressure gauge, 13 is multi-way valve, 131 is the first selector valve, 132 is the second selector valve, 14 is interlock changing valve, 15 is one-way valve group, 151 is the first one-way valve, 152 is the second one-way valve, 153 is the 3rd one-way valve, 154 is the 4th one-way valve, 155 is the 5th one-way valve, 156 is the 6th one-way valve, 157 is floating plug, 16 is variable displacement motor, 17 is chuck, 18 is smart oil purifier, 19 is advance and retreat oil cylinder, 20 is first throttle valve, 21 is rotary reducer, 22 is the first bidirectional hydraulic lock, 23 is hoist cylinder, 24 is the second bidirectional hydraulic lock, 25 is supporting post stretch oil cylinder, 26 is second throttle, 27 is interstage valve, 28 is clamp holder, 281 unclamp end for clamp holder, 282 is clamp holder clamping end, 31 is fuel tank, 32 is protection one-way valve, 41 hold oil through greatly, 42 is small end oil through, 43 is bypass oil through.
Embodiment
Core of the present utility model there is provided a kind of hydraulic system of rotary rig, achieves the combined operation of each executive component, simplifies operation, decrease misoperation, thus protect equipment.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, the utility model embodiment provides a kind of hydraulic system of rotary rig, comprises variable displacement motor 16, chuck 17, advance and retreat oil cylinder 19, clamp holder 28, fuel tank 31, oil supplying device, one-way valve group 15, multi-way valve 13 and interlock changing valve 14.Wherein, chuck 17 is for often to open chuck, and namely do not having under hydraulic pressure oil condition, chuck 17 is in releasing orientation; Clamp holder 28 is normally closed clamp holder, and namely do not having under pressure oil condition, clamp holder 28 is in clamped condition.
The two ends of oil supplying device are communicated with multi-way valve 13 with fuel tank 31 respectively, by oil supplying device by the hydraulic oil supply multi-way valve 13 in fuel tank 31;
One-way valve group 15 comprises the first one-way valve 151, second one-way valve 152, the 3rd one-way valve 153, the 4th one-way valve 154, the 5th one-way valve 155, the 6th one-way valve 156 and floating plug 157, wherein, the outlet of the first one-way valve 151, second one-way valve 152, the 4th one-way valve 154 and the 5th one-way valve 155 is interconnected, and the outlet of these four one-way valves is all communicated with chuck 17, as shown in Figure 10 and Figure 11, floating plug is have the different large and small two ends of area, the large end of floating plug with hold oil through to be communicated with greatly, the small end of floating plug is communicated with small end oil through, is provided with two bypass oil throughs in the both sides of floating plug, the outlet of the 3rd one-way valve 153 and the 6th one-way valve 156, and be communicated with the large end oil through 41 of floating plug 157, the small end oil through 42 of floating plug 157 and the first one-way valve 151, second one-way valve 152, 4th one-way valve 154 is all communicated with the outlet of the 5th one-way valve 155, two bypass oil throughs 43 of floating plug respectively with the inlet communication of the 3rd one-way valve 153 and the 6th one-way valve 156, also be communicated with respectively with retreating to hold with the front inlet side of advance and retreat oil cylinder 19 simultaneously, floating plug 157 can move left and right, floating plug 157 is in the process to small end movement, floating plug 157 can block two bypass oil throughs, floating plug 157 is when Xiang great Duan moves, small end oil through 42 is communicated with two bypass oil throughs 43, after hydraulic oil enters one-way valve group 15, can not return, the executive component needing work can only be led to, wherein, the inlet of the 5th one-way valve 155 is communicated with fuel tank 31, when needs release, by the 5th one-way valve 155 conducting, hydraulic oil returns fuel tank 31 from the import of the 5th one-way valve 155.
Multi-way valve 13 comprises the first selector valve 131 and the second selector valve 132, first selector valve 131 and the second selector valve 132 are the two-way in multi-way valve 13, the filler opening of the first selector valve 131 is all communicated with oil supplying device with the filler opening of the second selector valve 132, multi-way valve 13 shares a main return opening, main return opening is communicated with fuel tank 31, first selector valve 131 carries out the control of gear by variable displacement motor operating handle, for the rotating forward to variable displacement motor 16, reversion and neutral control, be specially the first hydraulic fluid port of the first selector valve 131 and the rotating forward end of variable displacement motor 16, the import of unclamping end 281 and the first one-way valve 151 of clamp holder 28 is all communicated with, second hydraulic fluid port of the first selector valve 131 and the import of the second one-way valve 152, the reversion end of variable displacement motor 16 and the pinching end 282 of clamp holder 28 are all communicated with.Wherein, the reversion end of the first hydraulic fluid port of the first selector valve 131, the rotating forward end of variable displacement motor 16, variable displacement motor 16 and the second hydraulic fluid port of the first selector valve 131 form loop, by rotating and reverse of the direct controlled variable motor 16 of variable displacement motor control lever, when variable displacement motor control lever is positioned at rotating forward gear, by the first hydraulic fluid port fuel feeding of the first selector valve 131, variable displacement motor 16 rotates forward, otherwise, then by the second hydraulic fluid port fuel feeding of the first selector valve 131, variable displacement motor 16 reverses; Mention above, the outlet of the first one-way valve 151, second one-way valve 152 of chuck 17 and one-way valve group 15, the 4th one-way valve 154 and the 5th one-way valve 155, and the inlet communication of the first hydraulic fluid port of the first selector valve 131 and the first one-way valve 151, second hydraulic fluid port of the first selector valve 131 and the inlet communication of the second one-way valve 152, therefore, no matter variable displacement motor 16 is rotate forward or reversion, and hydraulic oil all leads to chuck 17, owing to being connected with hydraulic oil in chuck 17, then chuck 17 is made to clamp; First hydraulic fluid port of the first selector valve 131 is communicated with the pinching end 282 of clamp holder 28, when then variable displacement motor 16 rotates forward, clamp holder 28 clamps (because clamp holder 28 is as normally closed clamp holder, this path is on its nothing impact), second hydraulic fluid port of the first selector valve 131 is communicated with the end 281 that unclamps of clamp holder 28, when then variable displacement motor 16 reverses, clamp holder 28 unclamps.
First hydraulic fluid port of multi-way valve second selector valve 132 is all communicated with the front inlet side of advance and retreat oil cylinder 19 with the import of the 3rd one-way valve 153, and the second hydraulic fluid port of the second selector valve 131 is all communicated with the retrogressing end of advance and retreat oil cylinder 19 with the import of the 6th one-way valve 156.
First hydraulic fluid port of interlock changing valve 14 is communicated with the first hydraulic fluid port of the second selector valve 131, second hydraulic fluid port of interlock changing valve 14 is communicated with the second hydraulic fluid port of the second selector valve 132, interlock the 3rd hydraulic fluid port of changing valve 14 and the inlet communication of the 5th one-way valve 155, the 4th hydraulic fluid port of interlock changing valve 14 is all connected with the import of the 4th one-way valve 154, the end 281 that unclamps of clamp holder 28.
The hydraulic system that above-described embodiment provides only need control the oil circuit of the first selector valve 131 and the second selector valve 132 respectively by variable displacement motor control lever, advance and retreat ram controls; and coordinate the different gears of interlock changing valve 14; achieve the combined operation of executive component; do not need to arrange separately the operating handle controlling chuck 17 and the operating handle controlling clamp holder 28; simplify operation; thus decrease misoperation, protect equipment.Concrete linkage function can be unified to introduce below.
As shown in Figure 1, in the utility model embodiment, be optimized oil supplying device, oil supplying device comprises main oil pump 2, auxiliary oil pump 3 and dynamical element 1; Dynamical element 1 can be motor or diesel engine, for driving main oil pump 2 and auxiliary oil pump 3 oil suction from fuel tank 31; Main oil pump 2 is arranged in parallel with auxiliary oil pump 3 and is all communicated with fuel tank 31, main oil pump 2 is communicated with the filler opening of the first selector valve 131 of multi-way valve 13, auxiliary oil pump 3 is communicated with the filler opening of the second selector valve 132 of multi-way valve 1, main oil pump 2 is only to the first selector valve 131 fuel feeding, and auxiliary oil pump 3 can to all the other road valve fuel feeding of the second selector valve 132 and multi-way valve.Arrange the charge oil pressure that main oil pump 2 and auxiliary oil pump 3 can realize hydraulic system to stablize, thus realize combined operation better.
In the present embodiment, hydraulic system also comprises interstage valve 27, the outlet of interstage valve 27 is communicated with the end 281 that unclamps of clamp holder 28, first import of interstage valve 27 is communicated with the first hydraulic fluid port of the first selector valve 131, second import of interstage valve 27 is communicated with the 4th hydraulic fluid port of interlock changing valve 14, and the area of the spool of the first inlet of interstage valve 27 is greater than the area of the spool of the second inlet; The effect of interstage valve 27 is after the oil content of the oil of main oil pump 2 and auxiliary oil pump 3 is not introduced interstage valve 27, what lead to clamp holder 28 again unclamps end 281, be equivalent to a transition oil-deflecting element, the oil of main oil pump 2 is led in first import of interstage valve 27, the oil of auxiliary oil pump 3 is led in second import, and when the oil of main oil pump 2 and auxiliary oil pump 3 enters in interstage valve 27 simultaneously, whose pressure is large, what then enter clamp holder 28 by interstage valve 27 unclamps end, usually by auxiliary oil pump 3, hydraulic oil is supplied clamp holder 28.Certainly, also can not arrange interstage valve 27, what directly the oil of main oil pump 2 and auxiliary oil pump 3 is directly supplied clamp holder 28 unclamps end 281.
Below the working procedure of hydraulic system and working principle are introduced:
One, variable displacement motor operating handle is positioned at rotating forward gear: variable displacement motor operating handle controls the first selector valve 131 of multi-way valve 13, the circulation path of hydraulic oil as denoted by the arrows in fig. 2, now, main oil pump 2 is from fuel tank oil suction, hydraulic oil is through the filler opening of the first selector valve 131, from the first hydraulic fluid port of the first selector valve 131 out, three tunnels are divided into afterwards; The rotating forward end of the direct entering variable motor 16 of the first via, drive variable displacement motor 16 to rotate forward, and then unit head is rotated forward, hydraulic oil brings out from the reversion of variable displacement motor 16, returns fuel tank 31 finally by main return opening; Meanwhile, second road hydraulic oil enters one-way valve group 15, after the first one-way valve 151, be divided into two branch roads, the first branch road injects chuck 17, therefore chuck 17 clamps, second branch road leads to the small end oil through 42 of floating plug 157, and floating plug 157 is to holding movement greatly, and two bypass oil throughs 43 are communicated with small end oil through 42, hydraulic oil enters the front inlet side of advance and retreat oil cylinder 19 respectively and retreats end, and advance and retreat oil cylinder 19 floats; 3rd road hydraulic oil is through the first import of interstage valve 27, and from the outlet of interstage valve 27 out, what finally enter clamp holder 28 unclamps end 281, and clamp holder 28 unclamps.
Can find out, only need manipulated variable motor operating handle just can realize the interlock of variable displacement motor 16, chuck 17 and clamp holder 28, advance and retreat oil cylinder 19 floats, compared with prior art, simplify operation, and when advance and retreat oil cylinder 19 floats, dismounting drilling rod, can not damage drilling rod, clamp holder 28 and chuck 17 etc. because drilling rod is subjected to displacement.
Two, variable displacement motor operating handle is positioned at reversion gear: the circulation path of hydraulic oil as shown in Figure 3, hydraulic oil is successively through the filler opening of main oil pump 2, first selector valve 131, the second hydraulic fluid port of the first selector valve 131, be divided into three tunnels, the first via returns fuel tank 31 through the rotating forward end of the reversion end of variable displacement motor 16, variable displacement motor 16, main return opening successively, drives unit head reversion; Second tunnel directly enters the pinching end 282 of clamp holder 28, and because clamp holder 28 is normally closed clamp holder, therefore, this road does not affect clamp holder 28 state; 3rd tunnel is after the outlet of the import of the second one-way valve 152, the second one-way valve 152, and be divided into two branch roads, the first branch road enters chuck 17, thus chuck 17 is clamped, second branch road enters the small end oil through 42 of floating plug 157, identical with the first situation, and advance and retreat oil cylinder 19 floats.
Visible, no matter rotate and reverse, chuck 17 is all connected with hydraulic oil and is clamped, and when only rotating and reverse, advance and retreat oil cylinder 19 floats.
Three, advance and retreat ram controls is positioned at advance gear: advance and retreat ram controls controls the second selector valve 132 of multi-way valve 13, the circulation path of hydraulic oil as shown in Figure 4, hydraulic oil through the filler opening of auxiliary oil pump 3, second selector valve 132, the first hydraulic fluid port of the second selector valve 132, is divided into two-way successively afterwards; The first via enters the front inlet side of advance and retreat oil cylinder 19, second tunnel is through the import of the 3rd one-way valve 153, enter the large end oil through 41 of floating plug 157, second road hydraulic oil pushes floating plug 157 to small end, two bypass oil throughs 43 are closed, and the second road binders can not circulate, and the first road binders enters the front inlet side of advance and retreat oil cylinder 19, drive advance and retreat oil cylinder 19 to advance, the hydraulic oil of the retrogressing end of advance and retreat oil cylinder 19 returns fuel tank 31 through main return opening.
Visible, advance and retreat ram controls is when advance gear, and advance and retreat oil cylinder 19 locks, and can not float, but carries out propelling action.
Four, advance and retreat ram controls is positioned at advance gear, interlock changing valve 14 to be sought loopholes position under being positioned at interlock: hydraulic oil flow through path as shown in Figure 5, hydraulic oil through the filler opening of auxiliary oil pump 3, second selector valve 132, the first hydraulic fluid port of the second selector valve 132, is divided into three tunnels successively afterwards.Wherein identical with the third situation of the first via and the second tunnel; First hydraulic fluid port of 3rd tunnel through interlock changing valve 14, the 4th hydraulic fluid port of interlock changing valve 14, be divided into two branch roads afterwards.First branch road enters chuck through the 4th one-way valve rear portion, locking chuck, another part enters the small end oil through of floating plug, and now, all there is oil at the size two ends of floating plug, because the area of the large end of floating plug is larger, therefore, floating plug is pushed to small end, and two bypass oil throughs are closed, advance and retreat oil cylinder is locked, and carries out propelling action; What the second branch road entered clamp holder 28 through the second import of interstage valve 27, the outlet of interstage valve 27 unclamps end 281, and clamp holder 281 unclamps.
Visible, by the compounding practice of advance and retreat ram controls with the operating handle of interlock changing valve, achieve the interlock of advance and retreat oil cylinder, chuck and clamp holder.
Five, advance and retreat ram controls is positioned at advance gear, interlock changing valve is positioned at interlock trip-out gear: as shown in Figure 6, the path of hydraulic oil is identical with the 4th kind of case part, unlike, enter interlock changing valve 14 in hydraulic oil from interlock changing valve 14 the 3rd hydraulic fluid port out, enter the import of the 5th one-way valve 155, 5th one-way valve 155 is opened, because the import of the 5th one-way valve 155 is communicated with oil sump tank, therefore, oil in chuck 17 flows back to fuel tank from the 5th one-way valve 155, unclamp after chuck 17 release, meanwhile, finally also fuel tank is flowed back to by the 5th one-way valve 155 from the small end hydraulic oil out of floating plug 157.
Six, advance and retreat ram controls is positioned at retrogressing gear: as shown in Figure 7, the circulation path of hydraulic oil is successively through the filler opening of auxiliary oil pump 3, second selector valve 132, the second hydraulic fluid port of the second selector valve 132, be divided into two-way afterwards, the first via through advance and retreat oil cylinder 19 retrogressing end, drive advance and retreat oil cylinder 19 to retreat, the hydraulic oil in the front inlet side of advance and retreat oil cylinder 19 returns fuel tank 31 through main return opening; Second tunnel enters in the large end oil through of floating plug 157 through the 6th one-way valve 156, and promote floating plug and move to small end, the second tunnel is obstructed.
Seven, advance and retreat ram controls is positioned at retrogressing gear, interlock changing valve is positioned at the trip-out gear that links: as shown in Figure 8, identical with the 6th kind of situation, hydraulic oil is while entering the retrogressing end of advance and retreat oil cylinder 19, hydraulic oil is also through the second hydraulic fluid port of interlock changing valve 14, the 3rd hydraulic fluid port of interlock changing valve 14,5th one-way valve 155 is opened, now, the hydraulic oil in chuck 17 returns fuel tank by the 5th one-way valve 155, and chuck 17 unclamps.
Eight, variable displacement motor operating handle is in and rotates forward gear, advance and retreat ram controls is in advance gear, position sought loopholes by interlock changing valve under being in interlock: this is operating as conventional operation, creeps into for interlock.The circulation path of hydraulic oil as shown in Figure 9, main oil pump 2 and auxiliary oil pump 3 fuel feeding simultaneously, hydraulic oil enters the first selector valve 131 through main oil pump 2, goes out from the first hydraulic fluid port of the first selector valve 131, identical with the first situation afterwards, make that variable displacement motor 16 rotates forward, chuck 17 clamps, clamp holder 28 unclamps, and make the oil of main oil pump enter in the small end oil through of floating plug; Meanwhile, hydraulic oil enters the second selector valve 132 through auxiliary oil pump 3, goes out from the first hydraulic fluid port of the second selector valve 132, identical with the 4th kind of situation afterwards, makes that advance and retreat oil cylinder 19 advances, chuck 17 clamps, clamp holder 28 unclamps.Now, the oil of auxiliary oil pump 3 enters in the large end oil through 41 of floating plug 157, although the oil pressure of the oil pressure ratio main oil pump 2 of auxiliary oil pump 3 is little, the area of the area ratio small end of the large end of floating plug 157 is large, thus the active force acting on large end is greater than the active force of small end, floating plug 157 is pushed to small end, and two bypass oil throughs 43 are closed, and the front inlet side of advance and retreat oil cylinder 19 can not be communicated with retrogressing end, thus advance and retreat oil cylinder 19 is locked, carry out propelling action.Two ends due to the spool of interstage valve 27 now enter the oil of main oil pump 2 and the oil of auxiliary oil pump 3 respectively, whose active force is strong, who will enter clamp holder 28 by the outlet of interstage valve 27 is unclamped end 281, under normal circumstances, end 281 fuel feeding is unclamped to clamp holder 28 by the oil of auxiliary oil pump 3, therefore, the large end of the spool of interstage valve 27 and the second inlet communication of interstage valve 27, the small end of the spool of interstage valve 27 and the first inlet communication of interstage valve 27, thus make the active force of the large end of spool be greater than small end active force, allow the oil of auxiliary oil pump 3 pass through.
Be more than working principle and the working procedure of the hydraulic system in the utility model, in practical operation, the operating method of rotary rig comprises the following steps:
Step a, to creep into: variable displacement motor operating handle is pushed to rotate forward gear simultaneously, gear pushed forward by advance and retreat ram controls, position sought loopholes by the operating handle of interlock changing valve 14 under pushing interlock to, now, while variable displacement motor 16 rotates forward, chuck 17 interlock clamping, clamp holder 28 interlock are unclamped, concrete oil circuit can refer to Figure 10, does not repeat them here;
Step b, rig reach the limit of position rollback: pushed to by variable displacement motor operating handle stop gear, advance and retreat ram controls to push rollback gear to simultaneously, now, chuck 17 unclamps automatically (because being often open), clamp holder 28 Automatic-clamping (because being normally closed), concrete oil circuit can refer to Fig. 7;
Step c, add drilling rod: shift advance and retreat ram controls onto neutral, stop advancing, now chuck 17 unclamps (because being often open) automatically, clamp holder 28 Automatic-clamping (because being normally closed), and be now in outage state, oil circuit does not circulate;
Steps d, tight drilling rod: pushed to by variable displacement motor operating handle rotate forward gear, now, variable displacement motor 16 rotates forward, chuck 17 links and clamps, and clamp holder 28 interlock is unclamped, and repeats step a-steps d, until work of creeping into is complete;
Step e, trip-out: variable displacement motor operating handle maintained rotating forward gear or push to stop gear, rollback gear pushed to by advance and retreat ram controls, interlock trip-out gear pushed to by the operating handle of interlock changing valve 14, and now chuck 17 links and clamps, and clamp holder 28 interlock is unclamped;
Step f, loose drilling rod: variable displacement motor operating handle is pushed to the gear that reverses, now, chuck 17 links and clamps, and clamp holder 28 links and clamps, and concrete oil circuit is as shown in Figure 3;
Step g, get drilling rod: pushed to by variable displacement motor operating handle stop gear, now, chuck 17 unclamps automatically, clamp holder 28 Automatic-clamping;
Step h, again stick of tool bar: gear that advance and retreat ram controls is pushed forward, now, chuck 17 unclamps automatically, clamp holder 28 Automatic-clamping;
Step j, repetition step e-step h, until drilling rod all takes out.
Can find out; in above working procedure, the required operating handle number ratio controlled of each action is of the prior art few, thus simplifies operation; decrease misoperation; reduce potential safety hazard, protect equipment, and when carrying out steps d and f; advance and retreat oil cylinder 19 is in quick condition; therefore, allow drilling rod to have certain displacement, damage can not be caused to drilling rod and equipment.
As shown in Figure 1, optimize further, in the present embodiment, hydraulic system also comprises the first throttle valve 20 between the first hydraulic fluid port and the 6th one-way valve 156 being arranged on the second selector valve 132.First throttle valve 20 is connected on and pulls out in loop into rising, the back pressure that first throttle valve 20 can be utilized to produce if desired makes system pressure improve, guarantee that clamp holder 28 is opened completely, avoid removing and creep into because system pressure is too low, clamp holder 28 can not be opened completely, cause drilling rod to abrade, regulate feeding simultaneously, rise and pull out speed, directly shown to have advanced by auxiliary oil pump pressure gauge 10 and pull out pressure.
As shown in Figure 1, in the present embodiment, hydraulic system also comprises the second throttle 26 between the 4th hydraulic fluid port and interstage valve 27 being arranged on interlock changing valve 14.Second throttle 26 is connected on clamp holder 28 oil circuit, closing clamp holder 28 oil circuit, making clamp holder 28 stay open state during for creeping into overweight, not by the impact of other actions.
In the utility model one embodiment, as shown in Figure 1, multi-way valve 13 is No. six valves, the first via valve of No. six valves is the first selector valve 131, the two-way valve of No. six valves is that two hydraulic fluid ports of all the other four way valves of second selector valve 132, No. six valve are communicated with hoist cylinder 23, supporting post stretch oil cylinder 25 and two rotary reducers 21 respectively.Be incorporated in a hydraulic system by frame, hoist cylinder 23 is for regulating height, and supporting post stretch oil cylinder 25 is for supporting rig, and two rotary reducers 21 control regulation of longitudinal angle and the lateral angles of rig respectively, adjust to the position of proper operation.In addition, hoist cylinder 23 is two, is all communicated with the first bidirectional hydraulic lock 22, keeps stable; Supporting post stretch oil cylinder 25 is also two, is all communicated with the second bidirectional hydraulic lock 24, keeps stable.
Certainly, multi-way valve 13 can also be No. five valves, the first via valve of No. five valves is the first selector valve 131, the two-way valve of No. five valves is the second selector valve 132, all the other three-way valves of No. five valves are communicated with hoist cylinder 23, supporting post stretch oil cylinder 25 and a rotary reducer 21 respectively, can only carry out the adjustment of an angle.
Hydraulic system in the present embodiment also comprises and is arranged on cooler 8 between the main return opening of multi-way valve 13 and fuel tank 31 and return filter 6, for oil return being cooled and filtering, be convenient to recycle, cooler 8 can be panel radiator, return pressure table 7 is also provided with, for monitoring return pressure in oil circuit.
In the present embodiment, hydraulic system also comprises the smart oil purifier 18 being arranged on chuck 17 inlet, to protect main shaft and to join oil jacket.
In the present embodiment, auxiliary oil pump 3 is communicated with the filler opening of the second selector valve 132 by relief valve 9, carrys out monitoring pressure, is provided with main pump pressure regulator valve 11 in multi-way valve 13, monitored by main oil pump pressure gauge 12 by auxiliary oil pump pressure gauge 10.The inlet of main oil pump 2 is provided with the first oil absorption filter 4, the inlet of auxiliary oil pump 3 is provided with the second oil absorption filter 5, for filtered fluid force feed, ensure the quality of working oil.
In the present embodiment; as shown in Figure 1; protection one-way valve 32 is set between auxiliary oil pump and the second selector valve; due to when the first selector valve 131 is in neutral; oil in main oil pump 2 can lead to all the other road valves of multi-way valve 13; be mixed for all the other road valve events with the oil in auxiliary oil pump 3; oil pressure due to main oil pump 2 is greater than the oil pressure of auxiliary oil pump 3; now the oil of main oil pump 2 acts on auxiliary oil pump 3; in order to protect the safety of auxiliary oil pump 3; therefore, protection one-way valve 32 is set at this, only allows the oil of auxiliary oil pump 3 to lead to multi-way valve 13.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the hydraulic system of a rotary rig, comprise variable displacement motor, chuck, advance and retreat oil cylinder and clamp holder, it is characterized in that, described chuck is for often to open chuck, described clamp holder is normally closed clamp holder, also comprises fuel tank, oil supplying device, one-way valve group, multi-way valve and interlock changing valve;
The two ends of described oil supplying device are communicated with described multi-way valve with described fuel tank respectively;
Described one-way valve group comprises the first one-way valve, second one-way valve, 3rd one-way valve, 4th one-way valve, 5th one-way valve, 6th one-way valve and floating plug, described first one-way valve, described second one-way valve, the outlet of described 4th one-way valve and described 5th one-way valve is interconnected, and outlet is all communicated with the small end oil through of described chuck and described floating plug, the outlet of described 3rd one-way valve and described 6th one-way valve, and outlet is communicated with the large end oil through of described floating plug, two bypass oil throughs of described floating plug are communicated with retreating to hold with the front inlet side of described advance and retreat oil cylinder respectively,
Described multi-way valve comprises the first selector valve and the second selector valve, the filler opening of described first selector valve is all communicated with described oil supplying device with the filler opening of described second selector valve, the main return opening of described multi-way valve is communicated with described fuel tank, first hydraulic fluid port of described first selector valve and the rotating forward end of described variable displacement motor, unclamping of described clamp holder are held and the import of described first one-way valve is all communicated with, and the pinching end of the second hydraulic fluid port of described first selector valve and the import of described second one-way valve, the reversion end of described variable displacement motor and described clamp holder is all communicated with;
The filler opening of described second selector valve is communicated with described oil supplying device, the front inlet side of the first hydraulic fluid port of described second selector valve and the described import of the 3rd one-way valve, the portlet of described floating plug and described advance and retreat oil cylinder is all communicated with, and the retrogressing end of the second hydraulic fluid port of described second selector valve and the described import of the 6th one-way valve, the large port of described floating plug and described advance and retreat oil cylinder is all communicated with;
First hydraulic fluid port of described interlock changing valve is communicated with the first hydraulic fluid port of described second selector valve, second hydraulic fluid port of described interlock changing valve is communicated with the second hydraulic fluid port of described second selector valve, 3rd hydraulic fluid port of described interlock changing valve and the inlet communication of described 5th one-way valve, the 4th hydraulic fluid port of described interlock changing valve is all connected with the described import of the 4th one-way valve, the end that unclamps of described clamp holder.
2. hydraulic system according to claim 1, is characterized in that, described oil supplying device comprises main oil pump, auxiliary oil pump and dynamical element; Described dynamical element drives described main oil pump and the oil suction from described fuel tank of described auxiliary oil pump; Described main oil pump is arranged in parallel with described auxiliary oil pump and is all communicated with described fuel tank, and described main oil pump is communicated with the filler opening of described first selector valve, and described auxiliary oil pump is communicated with the filler opening of described second selector valve.
3. hydraulic system according to claim 2, it is characterized in that, also comprise interstage valve, the unclamping to hold of the outlet of described interstage valve and described clamp holder is communicated with, first import of described interstage valve is communicated with the first hydraulic fluid port of described first selector valve, second import of described interstage valve is communicated with the 4th hydraulic fluid port of described interlock changing valve, and the area of the spool of the first inlet of described interstage valve is greater than the area of the spool of described second inlet.
4. hydraulic system according to claim 3, is characterized in that, also comprises the first throttle valve between the first hydraulic fluid port and described 6th one-way valve being arranged on described second selector valve.
5. hydraulic system according to claim 3, is characterized in that, also comprises the second throttle be arranged between the 4th hydraulic fluid port of described interlock changing valve and described interstage valve.
6. the hydraulic system according to any one of claim 1-5, it is characterized in that, described multi-way valve is No. six valves, the first via valve of described No. six valves is described first selector valve, the two-way valve of described No. six valves is described second selector valve, and two hydraulic fluid ports of all the other four way valves of described No. six valves are communicated with hoist cylinder, supporting post stretch oil cylinder and two rotary reducers respectively.
7. the hydraulic system according to any one of claim 1-5, it is characterized in that, described multi-way valve is No. five valves, the first via valve of described No. five valves is described first selector valve, the two-way valve of described No. five valves is described second selector valve, and all the other three-way valves of described No. five valves are communicated with hoist cylinder, supporting post stretch oil cylinder and a rotary reducer respectively.
8. the hydraulic system according to any one of claim 1-5, is characterized in that, also comprises the cooler between return opening and described fuel tank and return filter that are arranged on described multi-way valve.
9. the hydraulic system according to any one of claim 1-5, is characterized in that, also comprises the smart oil purifier being arranged on described chuck inlet.
10. the hydraulic system according to any one of claim 2, is characterized in that, described auxiliary oil pump is communicated with by the filler opening of relief valve with described second selector valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783062.XU CN204357812U (en) | 2014-12-11 | 2014-12-11 | A kind of hydraulic system of rotary rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420783062.XU CN204357812U (en) | 2014-12-11 | 2014-12-11 | A kind of hydraulic system of rotary rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357812U true CN204357812U (en) | 2015-05-27 |
Family
ID=53259285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420783062.XU Withdrawn - After Issue CN204357812U (en) | 2014-12-11 | 2014-12-11 | A kind of hydraulic system of rotary rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204357812U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736495A (en) * | 2014-12-11 | 2016-07-06 | 重庆平山矿山机电设备有限公司 | Hydraulic system of rotary drilling machine |
| CN113719248A (en) * | 2021-06-24 | 2021-11-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
-
2014
- 2014-12-11 CN CN201420783062.XU patent/CN204357812U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736495A (en) * | 2014-12-11 | 2016-07-06 | 重庆平山矿山机电设备有限公司 | Hydraulic system of rotary drilling machine |
| CN113719248A (en) * | 2021-06-24 | 2021-11-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
| CN113719248B (en) * | 2021-06-24 | 2024-04-30 | 江苏徐工工程机械研究院有限公司 | Clamp synchronous control system, clamp device and drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109236765B (en) | Drill jumbo and its Thrust Hydraulic Control System | |
| WO2016074509A1 (en) | Hydraulic control system of fully-hydraulic drill type coal mining machine | |
| CN204357812U (en) | A kind of hydraulic system of rotary rig | |
| CN202788599U (en) | Rock drilling control system for rock drill | |
| CN112648247B (en) | Confluence logic combined action hydraulic valve group | |
| CN103075101B (en) | Mining multi-logical protection loop and multi-linkage functional drill hydraulic system | |
| CN101538987B (en) | Anchoring drilling machine based on working mode of double-pump complementation automatic merging | |
| CN102536141B (en) | Automatic drill-rod-replacing control system for rock-drilling drill carriage | |
| CN105736495B (en) | A kind of hydraulic system of rotary rig | |
| CN204828091U (en) | Pushing ram emergency system | |
| CN205423366U (en) | Power unit type full -hydraulic drilling machine's double pump open circuit hydraulic system | |
| CN2236018Y (en) | Burst-accident-proof drilling machine integrated with digger | |
| CN201347728Y (en) | Hydraulic pressure pilot circuit of tube block underground | |
| CN101476453A (en) | Hydraulic control method and hydraulic control loop for down-hole column clamping device | |
| CN201475075U (en) | Double-cylinder hydraulic controller | |
| CN202531060U (en) | Automatic borer change control system of rock drilling carriage | |
| DE2261627A1 (en) | HYDRAULIC SHIFTING SYSTEM FOR AN EXCAVATOR OR THE SAME | |
| CN209430507U (en) | Construction machinery hydraulic system and engineering machinery | |
| CN101850722B (en) | Hydraulic driven remote control tractor | |
| CN110469552A (en) | A kind of hydraulic system and drilling machine | |
| CN211059099U (en) | Hydraulic system and drilling machine | |
| CN203161699U (en) | Pressure swing adsorption oil hydraulic system | |
| CN210746016U (en) | Hydraulic system for double-row sugarcane transverse planter | |
| CN203161241U (en) | Trench full-hydraulic injecting-drilling integral device for coal mine | |
| CN202833359U (en) | Open-type hydraulic system and engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150527 Effective date of abandoning: 20170630 |
|
| AV01 | Patent right actively abandoned |