CN203769642U - Oil way system for regulating and controlling positioning speed of hydraulic rock drilling - Google Patents
Oil way system for regulating and controlling positioning speed of hydraulic rock drilling Download PDFInfo
- Publication number
- CN203769642U CN203769642U CN201420031227.8U CN201420031227U CN203769642U CN 203769642 U CN203769642 U CN 203769642U CN 201420031227 U CN201420031227 U CN 201420031227U CN 203769642 U CN203769642 U CN 203769642U
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- China
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- oil
- valve
- pump
- fhd
- pilot
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- Expired - Fee Related
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Abstract
An oil way system for regulating and controlling the positioning speed of hydraulic rock drilling comprises a pilot handle, a pilot pedal, a shuttle valve, an FHD pump, a one-way valve, a reversing valve, a pushing oil cylinder, an amplitude variation oil cylinder and a reversing valve. A pilot oil port of the pilot handle and a pilot oil port of the pilot pedal are connected with two oil inlets of the shuttle valve respectively, an oil outlet of the shuttle valve is communicated with an oil port X of the FHD pump through a pilot pressure oil way PK so as to control the output displacement of the FHD pump, an oil outlet of the FHD pump is communicated with an oil inlet of the one-way pump, an oil outlet of the one-way valve is respectively connected with a pressure oil port P1 of the pushing reversing valve and a pressure oil port P2 of the amplitude variation reversing valve, an oil outlet A1 of the pushing reversing valve is connected with a small cavity of the pushing oil cylinder, an oil outlet B1 of the pushing reversing valve is connected with a large cavity of the pushing oil cylinder, an oil outlet A2 of the amplitude variation reversing valve is connected with a small cavity of the amplitude variation oil cylinder, and an oil outlet B2 of the amplitude variation reversing valve is connected with a large cavity of the amplitude variation oil cylinder. The movement speed of the amplitude variation oil cylinder can be adjusted in a stepless mode, the movement speed of the pushing oil cylinder is stable, the defects that a proportional valve is low in speed regulating reliability, poor in pollution resisting capability and the like are overcome, the oil way system operates reliably under rock drilling and other severe work conditions, and maintaining is convenient.
Description
Technical field
The utility model relates to a kind of locating speed to hydraulic rock and regulates the oil piping system of controlling, and belongs to hydraulic rock drilling equipment field.
Background technology
The drill boom of jumbo adopts two triangle direct location modes, and the location of drill boom is that jumbo work is successfully crucial.The location of drill boom is engraved in and carries out while being, generally at an explosion section, will carry out the location work of tens times.Therefore, the positioning control of drill boom is the key that improves rock penetration performance.Drill boom, when location, when it soon arrives explosion section, must reduce the movement velocity of drill boom.Like this, the problem that needs speed governing with regard to producing a drill boom.Existing oil piping system as shown in Figure 3, Figure 4, the oil piping system speed governing of Fig. 4 can only be carried out crawl control, speed governing is inconvenient, and the oil piping system speed governing of Fig. 3 can be good at realizing the speed governing of drill boom, but proportional reversing valve stain resistance is poor, is not easy to safeguard, particularly in mining machinery field, tunnel, meanwhile, proportional reversing valve price, so maintenance cost is high.
Utility model content
The purpose of this utility model is the oil piping system for the deficiencies in the prior art provide that a kind of control that meets drill boom speed governing and two kinds of operating modes of rock drilling requires, can carry out that electrodeless adjusting, control mode are stable, good economy performance, the locating speed to hydraulic rock easy to maintenance regulate control
A kind of locating speed to hydraulic rock regulates the oil piping system of controlling, comprise pilot handle, guide's foot rest, shuttle valve, FHD pump, one way valve, advance reversal valve, propelling cylinder, amplitude oil cylinder and luffing reversal valve, guide's hydraulic fluid port of described pilot handle and guide's foot rest is connected with two oil-ins of described shuttle valve respectively, the oil-out of described shuttle valve is communicated with the hydraulic fluid port X of FHD pump by pilot pressure oil circuit PK, thereby control the output displacement size of FHD pump, the oil-in conducting of the oil-out of described FHD pump and one way valve, the oil-out of described one way valve is connected with advancing the pressure hydraulic fluid port P1 of reversal valve and the pressure hydraulic fluid port P2 of luffing reversal valve respectively, the oil-out A1 of described propelling reversal valve is connected with the loculus of propelling cylinder, the oil-out B1 of described propelling reversal valve is connected with the large chamber of propelling cylinder, the oil-out A2 of described luffing reversal valve is connected with the loculus of amplitude oil cylinder, the oil-out B2 of described luffing reversal valve is connected with the large chamber of amplitude oil cylinder.
Described FHD pump is pressure control variables pump.
Described pilot handle is friction as lag type pilot handle, and described guide's foot rest is spring reset type guide foot rest.
Owing to adopting said structure, the utility model meets the control requirement of drill boom speed governing and two kinds of operating modes of rock drilling simultaneously, can carry out electrodeless adjusting, the shortcoming such as avoided the reliability of proportioning valve speed governing low, contamination resistance is poor, reliable under the bad working environments such as rock drilling, and while good economy performance easy to maintenance.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic diagram of FHD pump.
Fig. 3 is the schematic diagram of prior art.
Fig. 4 is the schematic diagram of prior art.
In accompanying drawing 1,2,1, pilot handle, 2, guide's foot rest, 3, shuttle valve, 4, FHD pump, 5, one way valve, 6, advance reversal valve, 7, propelling cylinder, 8, luffing reversal valve, 9, amplitude oil cylinder.
The specific embodiment
Below in conjunction with accompanying drawing, further describe the specific embodiment of this patent.
The locating speed of hydraulic rock is regulated to an oil piping system of controlling, comprises that friction as lag type pilot handle 1, guide's foot rest 2, shuttle valve 3, FHD pump 4(are the variable pump that pilot pressure is controlled), one way valve 5, advance reversal valve 6, propelling cylinder 7, luffing reversal valve 6 and amplitude oil cylinder 9.FHD pump 4 in this example adopts BOSCH-REXROTH board A10V type FHD variable pump, by guide's oil pressure PK, can control the corner of rotor, thereby the displacement size of control pump, guide's hydraulic fluid port of described friction as lag type pilot handle 1 and guide's foot rest 2, be connected with shuttle valve 3 oil-ins respectively, shuttle valve 3 can produce a pilot pressure PK, the hydraulic fluid port X of pilot pressure PK and FHD pump 4, hydraulic fluid port Y connects the pilot pressure of 3.5Mpa, be communicated with, thereby control the output displacement size of FHD pump 4, the oil-in conducting of the oil-out of described FHD pump 4 and one way valve 5, thereby pressure oil is entered and is advanced the input port P1 of reversal valve 6 and the input port P2 of luffing reversal valve 6 by FHD pump 4, the oil-out A1 of described propelling reversal valve 6 is connected with the loculus of propelling cylinder 7, the oil-out B1 of described propelling reversal valve 6 is connected with the large chamber of propelling cylinder 7, the oil-out A2 of described luffing reversal valve 6 is connected with the loculus of amplitude oil cylinder 9, the oil-out B2 of described luffing reversal valve 6 is connected with the large chamber of amplitude oil cylinder 9.This device produces pilot pressure PK by actuating friction memory type pilot handle 1 and guide's foot rest 2, control the output displacement size of FHD pump 4, thereby control the fluid flow that enters propelling cylinder 7 and amplitude oil cylinder 9, like this, the movement velocity of amplitude oil cylinder can be carried out electrodeless adjusting, meanwhile, the movement velocity of propelling cylinder is stable.This mode of speed regulation has been avoided the shortcomings such as the reliability of proportioning valve speed governing is low, contamination resistance is poor, reliable under the bad working environments such as rock drilling, and easy to maintenance.
The Liang Ge oil-in branch of described shuttle valve 3 is controlled by friction as lag type pilot handle 1 and spring reset type guide foot rest 2, the pilot pressure PK that wherein guide's foot rest 2 produces can meet the luffing location speed governing requirement of drill boom, and the pilot pressure PK that friction as lag type pilot handle 1 produces can meet under drill boom rock drilling operating mode, the movement velocity that realizes propelling cylinder is stable.
Drill boom speed control principle is as follows: spring reset type guide foot rest 2 produces the discharge capacity that pilot pressure PK control FHD variable pumps 4, thereby the flow that enters luffing reversal valve 6 can regulate, and the movement velocity of drill boom can electrodelessly regulate like this.
Rock drilling control mode is as follows: because the control mode of FHD variable pump 4 is positive control, in the situation that there is no pilot pressure, the discharge capacity of variable pump 4 is adjusted to zero delivery.Under rock drilling operating mode, need to regulate friction as lag type pilot handle 1 to produce the discharge capacity that pilot pressure PK controls FHD variable pump 4, thereby the flow that enters propelling reversal valve 6 can be constant, the movement velocity of propelling cylinder 7 can be stablized like this, meanwhile, under rock drilling operating mode, do not need to intervene manually rock drilling.
Claims (3)
1. the locating speed to hydraulic rock regulates the oil piping system of controlling, comprise pilot handle (1), guide's foot rest (2), shuttle valve (3), FHD pump (4), one way valve (5), advance reversal valve (6), propelling cylinder (7), amplitude oil cylinder (9) and luffing reversal valve (8), it is characterized in that: guide's hydraulic fluid port of described pilot handle (1) and guide's foot rest (2) is connected with two oil-ins of described shuttle valve (3) respectively, the oil-out of described shuttle valve (3) is communicated with the hydraulic fluid port (X) of FHD pump (4) by pilot pressure oil circuit (PK), thereby control the output displacement size of FHD pump, the oil-in conducting of the oil-out of described FHD pump (4) and one way valve (5), the oil-out of described one way valve (5) is connected with advancing the pressure hydraulic fluid port (P1) of reversal valve (6) and the pressure hydraulic fluid port (P2) of luffing reversal valve (8) respectively, the oil-out (A1) of described propelling reversal valve (6) is connected with the loculus of propelling cylinder (7), the oil-out (B1) of described propelling reversal valve (6) is connected with the large chamber of propelling cylinder (7), the oil-out (A2) of described luffing reversal valve (8) is connected with the loculus of amplitude oil cylinder (9), the oil-out (B2) of described luffing reversal valve (8) is connected with the large chamber of amplitude oil cylinder (9).
2. the locating speed to hydraulic rock according to claim 1 regulates the oil piping system of controlling, and it is characterized in that, described FHD pump (4) is pressure control variables pump.
3. the locating speed to hydraulic rock according to claim 1 regulates the oil piping system of controlling, and it is characterized in that, described pilot handle (1) is friction as lag type pilot handle, and described guide's foot rest (1) is spring reset type guide foot rest.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031227.8U CN203769642U (en) | 2014-01-17 | 2014-01-17 | Oil way system for regulating and controlling positioning speed of hydraulic rock drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420031227.8U CN203769642U (en) | 2014-01-17 | 2014-01-17 | Oil way system for regulating and controlling positioning speed of hydraulic rock drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203769642U true CN203769642U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420031227.8U Expired - Fee Related CN203769642U (en) | 2014-01-17 | 2014-01-17 | Oil way system for regulating and controlling positioning speed of hydraulic rock drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203769642U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533886A (en) * | 2015-01-16 | 2015-04-22 | 北京理工大学 | Non-load starting device and method for variable hydraulic pump |
| CN105421520A (en) * | 2014-08-29 | 2016-03-23 | 迪尔公司 | Correction of hydraulic driving system |
-
2014
- 2014-01-17 CN CN201420031227.8U patent/CN203769642U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421520A (en) * | 2014-08-29 | 2016-03-23 | 迪尔公司 | Correction of hydraulic driving system |
| CN105421520B (en) * | 2014-08-29 | 2019-10-15 | 迪尔公司 | The correction of Walking hydraulic system |
| CN104533886A (en) * | 2015-01-16 | 2015-04-22 | 北京理工大学 | Non-load starting device and method for variable hydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |