CN202560672U - Control valve group and rock drilling machine comprising same - Google Patents
Control valve group and rock drilling machine comprising same Download PDFInfo
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- CN202560672U CN202560672U CN2012201622304U CN201220162230U CN202560672U CN 202560672 U CN202560672 U CN 202560672U CN 2012201622304 U CN2012201622304 U CN 2012201622304U CN 201220162230 U CN201220162230 U CN 201220162230U CN 202560672 U CN202560672 U CN 202560672U
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- oil outlet
- selector valve
- oil
- control valve
- control
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Abstract
The utility model provides a control valve group and a rock drilling machine comprising the same. The control valve group is applied to the rock drilling machine comprising a pilot handle, a thrust oil cylinder and an impacter, wherein a first oil inlet of the control valve group is connected with a first oil outlet of the pilot handle; a second oil inlet of the control valve group is connected with a second oil outlet of the pilot handle; one of the first oil outlet and the second oil outlet of the pilot handle is selected to be conducted; a third oil outlet of the control valve group is communicated with the first oil inlet and the second oil inlet; the third oil outlet of the control valve group is communicated with the thrust oil cylinder to drive the thrust oil cylinder to act; the thrust oil cylinder is connected with a feedback oil port of the control valve group; a first oil outlet and a second oil outlet of the control valve group are respectively connected with the impacter; and the first oil outlet or the second oil outlet drives the impacter to act according to the feedback pressure of the feedback oil port, and further the pilot handle is operated to act once and the thrust oil cylinder and the impacter of the rock drilling machine are sequentially controlled to act, and thus the labor intensity is reduced. The rock drilling machine system comprising the control valve group is simple in structure, so that the manufacturing cost is reduced.
Description
Technical field
The utility model relates to field of mechanical technique, the rock drill that relates in particular to a kind of control valve group and comprise the control valve group.
Background technique
Rock drill is a kind of machinery that is used for rock-boring, is widely used in occasions such as mining, engineering construction, is important engineering machinery.Rock drill utilizes the impact grinding principle to carry out work, under the reciprocating effect of piston high frequency, and the bit shank of continuous impact device; The bore bit that is the glut shape is with the rock crushing and dig into certain degree of depth, forms indenture one, in addition; Piston to-and-fro motion in advancing oil cylinder; The driving rock drill advances, and rock drill is at impactor and advance under the oil cylinder mating reaction completion impact and propelling sequentially-operating.
Common rock drill control mode comprises: manual control mode or hydraulic pilot control mode control multi-way valve; And then the impact of control rock drill and the sequentially-operating of propelling, that is, directly control the switching of multi-way valve through control guide handle; Control impactor work or independent control advance oil cylinder work separately; Can't realize controlling simultaneously impactor and advance oil cylinder, that must impact respectively and advance controls, and has increased labor intensity.
Development along with technology; Utilize pressure transducer and solenoid valve to realize controlling simultaneously impactor and propelling oil cylinder; Realize the impact of rock drill and advance sequentially-operating, but this control mode need be passed through controller completion control, need to increase electronic component and circuit deployment; Increase system complexity, and made cost significantly improve.
Therefore needing a kind of rock drill controlling schemes badly overcomes the above problems.
The model utility content
The purpose of the utility model is the rock drill that a kind of control valve group is provided and comprises the control valve group, is used for realizing the impact of rock drill and advancing two kinds of action automatic sequences to carry out through once-through operation.
For achieving the above object, the utility model embodiment adopts following technological scheme:
The utility model provides a kind of control valve group; Be applied to comprise guide's handle (2), advance on the rock drill of oil cylinder (3) and impactor (4); Control valve group (1) is provided with first filler opening (15), second filler opening (16), first oil outlet (17), second oil outlet (18), the 3rd oil outlet (19) and feedback hydraulic fluid port (20), wherein:
First filler opening (15) of control valve group (1) is connected with guide's handle first oil outlet (21), and second filler opening (16) is connected with guide's handle second oil outlet (22); Wherein, guide's handle first oil outlet (21) and guide's handle second oil outlet (22) are selected a conducting;
The 3rd oil outlet (19) of control valve group (1) is communicated with first filler opening (15) and second filler opening (16), and the 3rd oil outlet (19) of control valve group (1) is communicated with driving propelling oil cylinder (3) action with advancing oil cylinder (3); Advance oil cylinder (3) to connect the feedback hydraulic fluid port (20) of control valve group (1);
First oil outlet (17) of control valve group (1) is connected impactor (4) respectively with second oil outlet (18), and first oil outlet (17) or second oil outlet (18) are according to feedback pressure driving impact device (4) action of feedback hydraulic fluid port (20).
Preferably; Be provided with shuttle valve (14) between first filler opening (15) of control valve group (1), second filler opening (16) and the 3rd oil outlet (19); The input end of shuttle valve (14) is communicated with first filler opening (15) and second filler opening (16) respectively, and the output terminal of shuttle valve (14) is communicated with the 3rd oil outlet (19).
Preferably, control valve group (1) comprising: first selector valve (11), second selector valve (12) and the 3rd selector valve (13), wherein:
First selector valve (11) connects first filler opening (15) and first oil outlet (17) respectively, and second selector valve (12) connects second filler opening (16) and second oil outlet (18) respectively;
The 3rd selector valve (13) connects feedback hydraulic fluid port (20), first selector valve (11) and second selector valve (12), and the 3rd selector valve (13) is according to feedback pressure control self, first selector valve (11) and second selector valve (12) switching-over of feedback hydraulic fluid port (20).
Preferably, first filler opening (15) is communicated with the oil inlet end of first selector valve (11), and first oil outlet (17) is communicated with the oil outlet end of first selector valve (11);
Second filler opening (16) is communicated with the oil inlet end of second selector valve (12), and second oil outlet (18) is communicated with the oil outlet end of second selector valve (12);
Feedback hydraulic fluid port (20) is communicated with the oil inlet end and the control end of the 3rd selector valve (13), and the oil outlet end of the 3rd selector valve (13) is communicated with first control end of first selector valve (11) and second control end of second selector valve (12) respectively.
Preferably; First selector valve (11), second selector valve (12) and the 3rd selector valve (13) are preset with the hydraulic pressure threshold value respectively; When the hydraulic pressure of the 3rd control end of the 3rd selector valve (13) during greater than the preset hydraulic pressure threshold value of the 3rd selector valve (13), the 3rd selector valve (13) switching-over;
If after the 3rd selector valve (13) switching-over; When the hydraulic pressure of second control end of first control end of first selector valve (11) and second selector valve (12) during respectively greater than preset separately hydraulic pressure threshold value, first selector valve (11) and second selector valve (12) commutate respectively.
Preferably, guide's handle (2) also comprises the 3rd oil outlet (23), and guide's handle the 3rd oil outlet (23), guide's handle first oil outlet (21) and guide's handle second oil outlet (22) are selected a conducting;
The 3rd oil outlet (19) of control valve group (1) is connected with advancing oil cylinder (3) through first multi-way valve (6); Wherein, the 3rd oil outlet (19) and guide's handle the 3rd oil outlet (23) are connected the control end of first multi-way valve (6) respectively, advance oil cylinder (3) to connect the oil outlet end of first multi-way valve (6).
Preferably, advance oil cylinder (3) to comprise rod chamber (31) and rodless cavity (32), the feedback hydraulic fluid port (20) of the oil outlet end of first multi-way valve (6) and control valve group (1) is connected rod chamber (31) respectively.
Preferably, first oil outlet (17) of control valve group (1) is connected with impactor (4) through second multi-way valve (7) with second oil outlet (18); Wherein, first oil outlet (17) and second oil outlet (18) are connected the control end of second multi-way valve (7) respectively, and impactor (4) connects the oil outlet end of second multi-way valve (7).
Preferably; Control valve group (1) also is provided with drain tap (10); Drain tap (10) connects fuel tank (5), and the 3rd draining end of the first draining end of first selector valve (11), the second draining end of second selector valve (12) and the 3rd selector valve (13) is connected drain tap (10) respectively.
The utility model also provides a kind of rock drill; At least comprise described control valve group (1), guide's handle (2), advance oil cylinder (3) and impactor (4), control valve group (1) connects guide's handle (2) respectively, advances oil cylinder (3) and impactor (4).
The utility model embodiment is through utilizing the oil-feed of guide's handle control control valve group, and an oil outlet of control valve group connects the propelling oil cylinder, drives to advance cylinder action; Advance oil cylinder to connect the feedback hydraulic fluid port of control valve group, two other oil outlet of control valve group connects impactor, utilizes the feedback pressure controlling and driving impactor action of feedback hydraulic fluid port; Realization utilizes guide's handle to carry out once-through operation; Sequence control advances oil cylinder and the action of rock drill impactor, has reduced labor intensity, and; The rock drill system architecture that comprises this control valve group that application the utility model embodiment provides is simple, has reduced manufacture cost.
Description of drawings
Fig. 1 is that the oil circuit of the rock drill that provides of the utility model embodiment connects schematic representation;
Fig. 2 is the structural representation of the control valve group that provides of the utility model embodiment.
Marginal data:
1, control valve group 2, guide's handle 3, propelling oil cylinder
4, impactor 5, fuel tank 6, first multi-way valve
7, second multi-way valve 10, drain tap 11, first selector valve
12, second selector valve 13, the 3rd selector valve 14, shuttle valve
15, first filler opening 16, second filler opening 17, first oil outlet
18, second oil outlet 19, the 3rd oil outlet 20, feedback hydraulic fluid port
21, guide's handle first oil outlet 22, guide's handle second oil outlet
23, guide's handle the 3rd oil outlet 31, rod chamber
32, rodless cavity
Embodiment
To combine the accompanying drawing among the utility model embodiment below, the technological scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment who is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Figure 1 is that the oil circuit of the rock drill that provides of the utility model embodiment connects schematic representation.As shown in the figure; Control valve group 1 is applied to comprise guide's handle 2, advances on the rock drill of oil cylinder 3 and impactor 4; Wherein, control valve group 1 is connected with impactor 4 with guide's handle 2, propelling oil cylinder 3 respectively, is used for advancing oil cylinder 3 and impactor 4 work according to the sequence of operation control of guide's handle 2.
First filler opening 15 of control valve group is connected with guide's handle first oil outlet 21, and second filler opening 16 is connected with guide's handle second oil outlet 22; Wherein, guide's handle first oil outlet 21 is selected a conducting with guide's handle second oil outlet 22.
The 3rd oil outlet 19 of control valve group 1 is communicated with first filler opening 15 and second filler opening 16, and the 3rd oil outlet 19 of control valve group 1 is communicated with 3 actions of driving propelling oil cylinder, the feedback hydraulic fluid port 20 of propelling oil cylinder 3 connection control valve groups 1 with propelling oil cylinder 3.
Specify the structure of control valve group 1 below in conjunction with Fig. 2, as shown in the figure, control valve group 1 comprises first selector valve 11, second selector valve 12 and the 3rd selector valve 13.
Concrete, the oil outlet end that the oil inlet end of first selector valve 11 is communicated with first filler opening, 15, the first selector valves 11 is communicated with first oil outlet 17.The oil outlet end that the oil inlet end of second selector valve 12 is communicated with second filler opening, 16, the second selector valves 12 is communicated with second oil outlet 18.The oil inlet end of the 3rd selector valve 13 and control end all are communicated with feedback hydraulic fluid port 20, and the oil outlet end of the 3rd selector valve 13 is communicated with first control end of first selector valve 11 and second control end of second selector valve 12 respectively.
In control valve group 1, be provided with shuttle valve 14 between first filler opening 15, second filler opening 16 and the 3rd oil outlet 19, the input end of shuttle valve 14 is communicated with first filler opening 15 and second filler opening 16 respectively, and the output terminal of shuttle valve 14 is communicated with the 3rd oil outlet 19.Shuttle valve 14 is used for the hydraulic pressure of two input ends of comparison (i.e. first filler opening 15 and second filler opening 16), and hydraulic oil flows into shuttle valve 14 from the high input end of hydraulic pressure, and flow to the 3rd oil outlet 19 from output terminal.
Below combine Fig. 1,2 to specify the oil circuit annexation of control valve group in the lump; As shown in the figure; First oil outlet 21 of guide's handle 2 is communicated with first filler opening 15 of control valve group 1, and second oil outlet 22 of guide's handle 2 is communicated with second filler opening 16 of control valve group 1.
Guide's handle 2 also comprises the 3rd oil outlet 23, and guide's handle the 3rd oil outlet 23, guide's handle first oil outlet 21 and guide's handle second oil outlet 22 are selected a conducting.
The 3rd oil outlet 19 of control valve group 1 is connected with advancing oil cylinder 3 through first multi-way valve 6, and wherein, the 3rd oil outlet 19 and guide's handle the 3rd oil outlet 23 are connected the control end of first multi-way valve 6, the oil outlet end of propelling oil cylinder 3 connections first multi-way valve 6 respectively.First multi-way valve 6 is used for the hydraulic fluid pressure gating oil circuit according to two control ends, hydraulic oil is advanced into advances oil cylinder 3, thereby drive oil cylinder 3 work that advance.
Specify the workflow of the control valve group 1 that these enforcements provide below in conjunction with Fig. 1,2, as shown in the figure,
User's operated pilot handle 2 is selected in-line, and guide's handle 2 is provided with three oil outlets: 21,22 and 23, and three oil outlets of guide's handle are selected a conducting.When user's operated pilot handle 2 is selected 23 conductings of guide's handle the 3rd oil outlet, control first multi-way valve, 6 gatings, and then control propelling cylinder action, that is, only realize advancing the control of oil cylinder; When user's operated pilot handle 2 is selected guide's handle first oil outlet 21 or 22 conductings of guide's handle second oil outlet; The input end that hydraulic oil flow to shuttle valve 14 through first filler opening 15 or second filler opening 16 of control valve group 1; When hydraulic oil when first filler opening 15 flows to; The pressure of the first input end a of shuttle valve 14 is higher than the pressure of the second input end b; Hydraulic oil is then flow to the first input end a of shuttle valve 14 by first filler opening 15, and is flowed out by the output terminal of shuttle valve 14, is got into the control end of first multi-way valve 6 by the 3rd oil outlet 19.
Two control ends of first multi-way valve 6 connect the 3rd oil outlet 19 of control valve group 1 and the 3rd oil outlet 23 of guide's handle respectively; Because operating, the user select first oil outlet 21 of guide's handle 2 fuel-displaced; Make the hydraulic pressure of the hydraulic pressure of the control end of the 3rd oil outlet 19 of connection control valve group 1 in the multi-way valve 6 of winning greater than the control end of first oil outlet 21 that connects guide's handle 2; Hydraulic oil gets into rod chamber 31 through first multi-way valve 6, and oil cylinder piston is descending, and then control advances oil cylinder 3 to stretch out.
After advancing oil cylinder 3 to move to range, the oil pressure in the rod chamber 31 increases gradually, and hydraulic oil is through the oil inlet end and the control end of the 3rd selector valve 13 of feedback hydraulic fluid port 20 inflow control valve groups 1.When the pressure in the control end of the 3rd selector valve 13 reaches the preset hydraulic pressure threshold value of the 3rd selector valve 13; 13 switching-overs of the 3rd selector valve, hydraulic oil gets into first control end of first selector valve 11 and second control end of first selector valve 12 respectively through the oil outlet end of the 3rd selector valve 13.
When the hydraulic fluid pressure of first control end that gets into first selector valve 11 reaches the preset hydraulic pressure threshold value of first selector valve 11,11 switching-overs of first selector valve; When the hydraulic fluid pressure of second control end that gets into second selector valve 12 reaches the preset hydraulic pressure threshold value of second selector valve 12,12 switching-overs of second selector valve.Preferably, the preset hydraulic pressure threshold value of first selector valve 11 equates with the preset hydraulic pressure threshold value of second selector valve 12.
When first selector valve 11 and 12 switching-overs of second selector valve, hydraulic oil flows out from first oil outlet 17 through first filler opening 15 and first selector valve 11; Perhaps hydraulic oil flows out from second oil outlet 18 through second filler opening 16 and second selector valve 12, exports the control end of second multi-way valve 7 respectively to, and then controls 7 switching-overs of second multi-way valve, realizes that control impactor 4 carries out impacting with high pressure or low pressure is impacted.
The utility model embodiment also provides a kind of rock drill, comprises foregoing control valve group 1, guide's handle 2 at least, advances oil cylinder 3 and impactor 4, and control valve group 1 connects guide's handle 2 respectively, advances oil cylinder 3 and impactor 4.
The utility model embodiment is through utilizing the oil-feed of guide's handle control control valve group, and an oil outlet of control valve group connects the propelling oil cylinder, drives to advance cylinder action; Advance oil cylinder to connect the feedback hydraulic fluid port of control valve group; Two other oil outlet of control valve group connects impactor, utilizes the feedback pressure controlling and driving impactor action of feedback hydraulic fluid port, realizes utilizing the control of guide's handle to advance oil cylinder to move to range; Carry out high pressure or low pressure impact according to the feedback pressure control impactor that advances oil cylinder again; Realize once handling guide's handle, the sequence control rock drill is accomplished propelling and is impacted two actions, has reduced labor intensity.In addition, the rock drill system architecture that comprises this control valve group that application the utility model embodiment provides is simple, has reduced manufacture cost.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be looked the protection domain of the utility model.
Claims (10)
1.
A kind of control valve group; Be applied to comprise guide's handle (2), advance on the rock drill of oil cylinder (3) and impactor (4); It is characterized in that; Control valve group (1) is provided with first filler opening (15), second filler opening (16), first oil outlet (17), second oil outlet (18), the 3rd oil outlet (19) and feedback hydraulic fluid port (20), wherein:
First filler opening (15) of control valve group (1) is connected with guide's handle first oil outlet (21), and second filler opening (16) is connected with guide's handle second oil outlet (22); Wherein, guide's handle first oil outlet (21) and guide's handle second oil outlet (22) are selected a conducting;
The 3rd oil outlet (19) of control valve group (1) is communicated with first filler opening (15) and second filler opening (16), and the 3rd oil outlet (19) of control valve group (1) is communicated with driving propelling oil cylinder (3) action with advancing oil cylinder (3); Advance oil cylinder (3) to connect the feedback hydraulic fluid port (20) of control valve group (1);
First oil outlet (17) of
control valve group (1) is connected impactor (4) respectively with second oil outlet (18), and first oil outlet (17) or second oil outlet (18) are according to feedback pressure driving impact device (4) action of feedback hydraulic fluid port (20).
2.
control valve group as claimed in claim 1; It is characterized in that; Be provided with shuttle valve (14) between first filler opening (15) of control valve group (1), second filler opening (16) and the 3rd oil outlet (19); The input end of shuttle valve (14) is communicated with first filler opening (15) and second filler opening (16) respectively, and the output terminal of shuttle valve (14) is communicated with the 3rd oil outlet (19).
3.
Control valve group as claimed in claim 1 is characterized in that, control valve group (1) comprising: first selector valve (11), second selector valve (12) and the 3rd selector valve (13), wherein:
First selector valve (11) connects first filler opening (15) and first oil outlet (17) respectively, and second selector valve (12) connects second filler opening (16) and second oil outlet (18) respectively;
the 3rd selector valve (13) connects feedback hydraulic fluid port (20), first selector valve (11) and second selector valve (12), and the 3rd selector valve (13) is according to feedback pressure control self, first selector valve (11) and second selector valve (12) switching-over of feedback hydraulic fluid port (20).
4.
Control valve group as claimed in claim 3 is characterized in that, first filler opening (15) is communicated with the oil inlet end of first selector valve (11), and first oil outlet (17) is communicated with the oil outlet end of first selector valve (11);
Second filler opening (16) is communicated with the oil inlet end of second selector valve (12), and second oil outlet (18) is communicated with the oil outlet end of second selector valve (12);
feedback hydraulic fluid ports (20) are communicated with the oil inlet end and the control end of the 3rd selector valve (13), and the oil outlet end of the 3rd selector valve (13) is communicated with first control end of first selector valve (11) and second control end of second selector valve (12) respectively.
5.
control valve group as claimed in claim 3 is characterized in that, first selector valve (11), second selector valve (12) and the 3rd selector valve (13) are preset with the hydraulic pressure threshold value respectively; Wherein, the upward preset hydraulic pressure threshold value of the 3rd selector valve (13) is used to control the 3rd selector valve (13) switching-over; First selector valve (11) and second selector valve (12) are gone up preset hydraulic pressure threshold value and are respectively applied for after the 3rd selector valve (13) switching-over, control the switching-over of first selector valve (11) and second selector valve (12).
6.
Control valve group as claimed in claim 1 is characterized in that, guide's handle (2) also comprises the 3rd oil outlet (23), and guide's handle the 3rd oil outlet (23), guide's handle first oil outlet (21) and guide's handle second oil outlet (22) are selected a conducting;
The 3rd oil outlet (19) of
control valve group (1) is connected with advancing oil cylinder (3) through first multi-way valve (6); Wherein, the 3rd oil outlet (19) and guide's handle the 3rd oil outlet (23) are connected the control end of first multi-way valve (6) respectively, advance oil cylinder (3) to connect the oil outlet end of first multi-way valve (6).
7.
control valve group as claimed in claim 6; It is characterized in that; Advance oil cylinder (3) to comprise rod chamber (31) and rodless cavity (32), the feedback hydraulic fluid port (20) of the oil outlet end of first multi-way valve (6) and control valve group (1) is connected rod chamber (31) respectively.
8.
control valve group as claimed in claim 1 is characterized in that, first oil outlet (17) of control valve group (1) is connected with impactor (4) through second multi-way valve (7) with second oil outlet (18); Wherein, first oil outlet (17) and second oil outlet (18) are connected the control end of second multi-way valve (7) respectively, and impactor (4) connects the oil outlet end of second multi-way valve (7).
9.
control valve group as claimed in claim 1; It is characterized in that; Control valve group (1) also is provided with drain tap (10); Drain tap (10) connects fuel tank (5), and the 3rd draining end of the first draining end of first selector valve (11), the second draining end of second selector valve (12) and the 3rd selector valve (13) is connected drain tap (10) respectively.
10.
a kind of rock drill; It is characterized in that; At least comprise like the described control valve group of one of claim 1-9 (1), guide's handle (2), advance oil cylinder (3) and impactor (4), control valve group (1) to connect guide's handle (2) respectively, advance oil cylinder (3) and impactor (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201622304U CN202560672U (en) | 2012-04-17 | 2012-04-17 | Control valve group and rock drilling machine comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201622304U CN202560672U (en) | 2012-04-17 | 2012-04-17 | Control valve group and rock drilling machine comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202560672U true CN202560672U (en) | 2012-11-28 |
Family
ID=47210333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201622304U Expired - Fee Related CN202560672U (en) | 2012-04-17 | 2012-04-17 | Control valve group and rock drilling machine comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202560672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131339A (en) * | 2017-12-26 | 2018-06-08 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo main pump control pressurer system |
-
2012
- 2012-04-17 CN CN2012201622304U patent/CN202560672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108131339A (en) * | 2017-12-26 | 2018-06-08 | 徐州徐工铁路装备有限公司 | A kind of drill jumbo main pump control pressurer system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121128 Termination date: 20160417 |