CN203769756U - Quick-response anti-blockage hydraulic rock drilling control system - Google Patents
Quick-response anti-blockage hydraulic rock drilling control system Download PDFInfo
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- CN203769756U CN203769756U CN201420013148.4U CN201420013148U CN203769756U CN 203769756 U CN203769756 U CN 203769756U CN 201420013148 U CN201420013148 U CN 201420013148U CN 203769756 U CN203769756 U CN 203769756U
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Abstract
The utility model discloses a quick-response anti-blockage hydraulic rock drilling control system. The quick-response anti-blockage hydraulic rock drilling control system comprises a propelling oil cylinder, a decompression valve, a reversing valve, a one-way throttling valve, an anti-blockage valve and a sequence valve, wherein an oil way, which is connected with the reversing valve, of the one-way throttling valve is provided with an oil port P1, an oil way, which is connected with the propelling oil cylinder, of the one-way throttling valve is provided with an oil port P2, the oil port P1 is connected with a main oil port of the anti-blockage valve, the other oil port of the anti-blockage valve is connected with a control oil port of the reversing valve, a control oil port of the anti-blockage valve is connected with the oil port P2, a control oil way, which is connected with the reversing valve, of the anti-blockage valve is provided with an oil port 4, the anti-blockage valve is respectively connected with a control oil port of a main valve of the sequence valve and an oil tank through the oil port 4, an oil way, which is connected with a pilot valve of the sequence valve, of the oil port 2 is connected with two main oil ports of a main valve core of the sequence valve one after another, and a throttling port D7 is arranged between the two main oil ports. According to the quick-response anti-blockage hydraulic rock drilling control system disclosed by the utility model, a blockage signal is obtained by the changing of propelling oil pressure, thus a signal feedback path is short, the feedback time is shorter relative to rotating blockage pressure feedback, the system anti-blockage responding speed is quickened, and the system anti-blockage capacity is enhanced.
Description
Technical field
The utility model relates to a kind of anti-sticking of response fast pricker hydraulic rock control system, belongs to hydraulic rock drilling equipment field.
Background technology
The rock drilling equipment of producing both at home and abroad has all had automation function in various degree, and wherein rock drill trolley with computer controlling can be realized the circulation of automatic cloth hole-location-boring, and general open loop type control also requires to realize single hole Cycle Automation.Single hole Cycle Automation refers to that hammer drill perforate is gently impacted, rock drilling is heavily impacted, the light impact of anti-sticking pricker and rollback and be advancing to the position the automation of actions such as returning.Air drill relies on operator's reaction speed to prevent or transaction card pricker fault, and the hydraulic gate large for percussion power, frequency is high, rate of penetration is fast is still difficult to prevent card pricker fault by operator's reaction speed.The hydraulic rock drilling equipment of producing both at home and abroad at present can be gone up perfect not at automatic anti-blocking haptotaxis, card pricker fault is got rid of and needed very large manpower and materials, therefore designs a set of hydraulic gate automatic anti-blocking pricker system that can respond fast and seems particularly important.
Utility model content
The utility model solves the deficiencies in the prior art and a kind of rapid, shortening feedback time that responds is provided, accelerate the reaction speed of system anti-sticking pricker, strengthen system anti-sticking pricker ability, reduced the required sebific duct of system and the quantity of valve, simplified the quick response anti-sticking pricker hydraulic rock control system of the structure of system.
A kind of anti-sticking of response fast pricker hydraulic rock control system, comprise propelling cylinder, reducing valve, reversal valve, one-way throttle valve, anti-sticking valve and sequence valve, described sequence valve comprises pilot valve and sequence valve main valve in proper order, described reducing valve oil-in is connected with pressure hydraulic fluid port P, the oil-out of described reducing valve is connected with the hydraulic fluid port P ' of described reversal valve after being connected with restriction D2 again, the hydraulic fluid port T of described reversal valve is connected with fuel tank, the hydraulic fluid port B of described reversal valve is connected with described one-way throttle valve oil-in after being connected with hydraulic fluid port A by restriction D11 again, the oil-out of described one-way throttle valve is connected with the rodless cavity of described propelling cylinder, the rod chamber of described propelling cylinder is connected with the oil circuit between reducing valve and restriction D2 by restriction D1, the oil circuit that described one-way throttle valve is connected with described reversal valve is provided with hydraulic fluid port P1, the oil circuit that described one-way throttle valve is connected with described propelling cylinder is provided with hydraulic fluid port P2, described hydraulic fluid port P1 is connected with the main hydraulic fluid port of described anti-sticking valve, another hydraulic fluid port of described anti-sticking valve is connected with the control port of described reversal valve, the control port of described anti-sticking valve is connected with described hydraulic fluid port P2, the oil circuit control that described anti-sticking valve is connected with described reversal valve is provided with hydraulic fluid port P4, described anti-sticking valve is connected with control port and the fuel tank of described sequence valve main valve respectively by described hydraulic fluid port P4, on the oil circuit that described hydraulic fluid port P2 and sequence valve pilot valve are connected, be successively connected with two main hydraulic fluid ports of described sequence valve main valve plug and be provided with restriction D7 between described two main hydraulic fluid ports, described anti-sticking valve is two-way plug-in valve cone valve.
Owing to adopting said structure, the utlity model has following advantage:
1) the card pricker signal of this device derives from the pressure variation of propelling cylinder oil pressure, by the size of restriction, regulate to control and touch pressure and heavy propelling pressure, thereby reach the propelling requirement of the various operating modes of hammer drill, the required sebific duct of system and the quantity of valve are reduced, simplified the structure of system, thus can realize touch, heavily punching, three kinds of patterns of rewind down switching.
2) the control anti-sticking valve signal of this device is by the variation of propelling cylinder oil pressure, because feedback approach is short, relatively existing by turning pricker pressure feedback feedback time short, accelerated the reaction speed of system anti-sticking pricker, strengthened system anti-sticking pricker ability.
3) the anti-sticking valve of this device adopts two-way plug-in valve cone valve, and two-way plug-in valve cone valve is quick on the draw, and valve core movement is improved the speed of anti-sticking reaction without airtight length, and anti-sticking rapidity is guaranteed.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, describe detailed description of the invention of the present utility model in detail.
A kind of anti-sticking of response fast pricker hydraulic rock control system, comprise propelling cylinder 3, reducing valve 1, reversal valve 2, one-way throttle valve 4, anti-sticking valve 5 and sequence valve, described sequence valve comprises pilot valve 7 and sequence valve main valve 6 in proper order, described reducing valve 1 oil-in is connected with pressure hydraulic fluid port P, the oil-out of described reducing valve 1 is connected with the hydraulic fluid port P ' of described reversal valve 2 after being connected with restriction D2 again, the hydraulic fluid port T of described reversal valve 2 is connected with fuel tank, the hydraulic fluid port B of described reversal valve 2 is connected with described one-way throttle valve 4 oil-ins after being connected with hydraulic fluid port A by restriction D11 again, the oil-out of described one-way throttle valve 4 is connected with the rodless cavity of described propelling cylinder 3, the rod chamber of described propelling cylinder 3 is connected with the oil circuit between reducing valve 1 and restriction D2 by restriction D1, the oil circuit that described one-way throttle valve 4 is connected with described reversal valve is provided with hydraulic fluid port P1, the oil circuit that described one-way throttle valve 4 is connected with described propelling cylinder is provided with hydraulic fluid port P2, described hydraulic fluid port P1 is connected with the main hydraulic fluid port of described anti-sticking valve 5, another hydraulic fluid port of described anti-sticking valve 5 is connected with the control port of described reversal valve 2, the control port of described anti-sticking valve 5 is connected with described hydraulic fluid port P2, described anti-sticking valve 5 is provided with hydraulic fluid port P4 with the oil circuit control that described reversal valve 2 is connected, described anti-sticking valve 5 is connected with control port and the fuel tank of described sequence valve main valve 6 respectively by described hydraulic fluid port P4, the oil circuit that described anti-sticking valve 5 is connected with sequence valve main valve 6 is provided with restriction D10, the oil circuit that described anti-sticking valve 5 is connected with described fuel tank is provided with restriction D5, described hydraulic fluid port P2 is also connected with described sequence valve pilot valve 7, on the oil circuit that described hydraulic fluid port P2 and sequence valve pilot valve 7 are connected, be successively connected with two main hydraulic fluid ports of described sequence valve main valve plug 6 and be provided with restriction D7 between described two main hydraulic fluid ports, the oil circuit of described sequence valve main valve plug 6 one of them main hydraulic fluid port is provided with restriction D8, described sequence valve pilot valve 7 is provided with restriction D9 with the oil circuit of hydraulic fluid port P2.Described anti-sticking valve is two-way plug-in valve cone valve.
The native system course of work comprises: sky pushes away, touches light impact to be widened the view, heavily impact and widen the view, block the pricker auto-returned that puts in place that returns and move.In Fig. 1, hydraulic fluid port P1 is reversal valve outlet pressure; Hydraulic fluid port P2 is for advancing large cavity pressure; Hydraulic fluid port P3 is for advancing little cavity pressure; Hydraulic fluid port P4 is pressure between anti-sticking valve and restriction 5; D1 to D11 is restriction everywhere.
System work process is as follows:
1) sky pushes away: while pushing away because of sky, resistance is very little, for fear of the misoperation that produces solution cavity card pricker, adopts in design to touch to realize and touches function.
2) touching light impact widens the view: reversal valve 2 is as for the next, now pressure oil through reducing valve 1, restriction D2, enter reversal valve 2 after, be divided into two parts, a part flows back to fuel tank by restriction D11, reversal valve 2; Another part enters the rodless cavity of propelling cylinder 3 by one-way throttle valve 4, make hammer drill automatically realize and touch light impact, and now anti-sticking is sent out and closed.
3) heavily push away rock drilling state:
Reversal valve 2 is put meta, enters the rodless cavity of propelling cylinder 3 from reducing valve 1 pressure oil out by one-way throttle valve 4, and propelling pressure increases with the increase of propelling resistance, realizes heavily and impacting.
4) anti-sticking pricker state (in two kinds of situation):
Crack card pricker: bore bit pours in hard rock crack and is stuck, the propelling pressure of propelling cylinder 3 is raised to maximum value, the pressure of the rodless cavity of propelling cylinder 3 increases, thereby hydraulic fluid port P2 pressure is increased, in the time that hydraulic fluid port P2 pressure increases to the set pressure of sequence valve pilot valve 7, sequence valve pilot valve 7 is opened, the pressure oil coming from hydraulic fluid port P2 stream, a part is opened sequence valve main valve plug 6 under differential pressure action, commutate thereby control reversal valve 2, another part leaks fuel tank 9 times through restriction 7, restriction; Hammer drill is return.
Solution cavity card pricker: bore bit is squeezed in solution cavity, the propelling resistance of propelling cylinder 3 suddenly disappears, the rodless cavity pressure of propelling cylinder 3 reduces rapidly, make hydraulic fluid port P2 pressure decreased, now the pressure reduction at anti-sticking valve 5 two ends reaches the value that anti-sticking valve 5 is opened, anti-sticking valve 5 is opened, thus anti-sticking valve 5 control reversal valve 2 and commutate, hammer drill is return.
5) hammer drill is advancing to the position auto-returned: the movement response of system and control procedure are consistent with above-mentioned crack card pricker.
Claims (2)
1. one kind responds anti-sticking pricker hydraulic rock control system fast, comprise propelling cylinder (3), reducing valve (1), reversal valve (2), one-way throttle valve (4), anti-sticking valve (5) and sequence valve, described sequence valve comprises pilot valve (7) and sequence valve main valve (6) in proper order, it is characterized in that, described reducing valve (1) oil-in is connected with pressure hydraulic fluid port (P), the oil-out of described reducing valve (1) is connected with the hydraulic fluid port (P ') of described reversal valve (2) after being connected with restriction (D2) again, the hydraulic fluid port (T) of described reversal valve (2) is connected with fuel tank, the hydraulic fluid port (B) of described reversal valve (2) is connected with described one-way throttle valve (4) oil-in after being connected with hydraulic fluid port (A) by restriction (D11) again, the oil-out of described one-way throttle valve (4) is connected with the rodless cavity of described propelling cylinder (3), the rod chamber of described propelling cylinder (3) is connected with the oil circuit between reducing valve (1) and restriction (D2) by restriction (D1), the oil circuit that described one-way throttle valve (4) is connected with described reversal valve is provided with hydraulic fluid port (P1), the oil circuit that described one-way throttle valve (4) is connected with described propelling cylinder is provided with hydraulic fluid port (P2), described hydraulic fluid port (P1) is connected with the main hydraulic fluid port of described anti-sticking valve (5), another hydraulic fluid port of described anti-sticking valve (5) is connected with the control port of described reversal valve (2), the control port of described anti-sticking valve (5) is connected with described hydraulic fluid port (P2), the oil circuit control that described anti-sticking valve (5) is connected with described reversal valve (2) is provided with hydraulic fluid port (P4), described anti-sticking valve (5) is connected with control port and the fuel tank of described sequence valve main valve (6) respectively by described hydraulic fluid port (P4), described hydraulic fluid port (P2) is also connected with described sequence valve pilot valve (7), on the oil circuit that described hydraulic fluid port (P2) and sequence valve pilot valve (7) are connected, be successively connected with two main hydraulic fluid ports of described sequence valve main valve plug (6) and be provided with restriction (D7) between described two main hydraulic fluid ports.
2. quick response anti-sticking pricker hydraulic rock control system according to claim 1, is characterized in that, described anti-sticking valve is two-way plug-in valve cone valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013148.4U CN203769756U (en) | 2014-01-09 | 2014-01-09 | Quick-response anti-blockage hydraulic rock drilling control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013148.4U CN203769756U (en) | 2014-01-09 | 2014-01-09 | Quick-response anti-blockage hydraulic rock drilling control system |
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| Publication Number | Publication Date |
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| CN203769756U true CN203769756U (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013148.4U Expired - Fee Related CN203769756U (en) | 2014-01-09 | 2014-01-09 | Quick-response anti-blockage hydraulic rock drilling control system |
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| CN (1) | CN203769756U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332967A (en) * | 2015-12-11 | 2016-02-17 | 重庆纳川山隅重工设备有限公司 | Self-adaptive valve bank for rock drilling machine |
| CN107620762A (en) * | 2017-10-27 | 2018-01-23 | 中国铁建重工集团有限公司 | Rock drill and its Automatic hydraulic control system |
| CN107906084A (en) * | 2017-10-27 | 2018-04-13 | 中国铁建重工集团有限公司 | Rock drill and its hydraulic pressure drilling control system |
| CN108612516A (en) * | 2018-06-07 | 2018-10-02 | 中国铁建重工集团有限公司 | A kind of rock drilling machine and its hydraulic control valve group |
| CN113494492A (en) * | 2021-08-03 | 2021-10-12 | 中国铁建重工集团股份有限公司 | Hydraulic system for preventing drill rod from being stuck in solution cavity and rock drilling trolley |
-
2014
- 2014-01-09 CN CN201420013148.4U patent/CN203769756U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332967A (en) * | 2015-12-11 | 2016-02-17 | 重庆纳川山隅重工设备有限公司 | Self-adaptive valve bank for rock drilling machine |
| CN107620762A (en) * | 2017-10-27 | 2018-01-23 | 中国铁建重工集团有限公司 | Rock drill and its Automatic hydraulic control system |
| CN107906084A (en) * | 2017-10-27 | 2018-04-13 | 中国铁建重工集团有限公司 | Rock drill and its hydraulic pressure drilling control system |
| CN108612516A (en) * | 2018-06-07 | 2018-10-02 | 中国铁建重工集团有限公司 | A kind of rock drilling machine and its hydraulic control valve group |
| CN108612516B (en) * | 2018-06-07 | 2024-02-20 | 中国铁建重工集团股份有限公司 | Rock drilling machine and hydraulic control valve group thereof |
| CN113494492A (en) * | 2021-08-03 | 2021-10-12 | 中国铁建重工集团股份有限公司 | Hydraulic system for preventing drill rod from being stuck in solution cavity and rock drilling trolley |
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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: 20150109 |
|
| EXPY | Termination of patent right or utility model |