CN203066853U - Full hydraulic top drive drilling machine feed hydraulic system - Google Patents
Full hydraulic top drive drilling machine feed hydraulic system Download PDFInfo
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- CN203066853U CN203066853U CN 201220706057 CN201220706057U CN203066853U CN 203066853 U CN203066853 U CN 203066853U CN 201220706057 CN201220706057 CN 201220706057 CN 201220706057 U CN201220706057 U CN 201220706057U CN 203066853 U CN203066853 U CN 203066853U
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- banked direction
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Abstract
The utility model discloses a full hydraulic top drive drilling machine feed hydraulic system. A metering pump is replaced by a load-sensitive pump, an ordinary reversing valve is replaced by a hydraulic control proportional reversing valve, a manner that an overflow valve on a main oilway regulates down pressure is replaced by a manner that an overflow valve on an LS feedback oilway regulates pressure, an anti-explosion valve is arranged between a multiway valve and a lifting oil cylinder, and a six-linkage multiway valve is replaced by a two-linkage multiway valve. Compared with the prior art, the full hydraulic top drive drilling machine feed hydraulic system improves working efficiency, reduces energy consumption and oil temperature, and reduces the size of the multiway valve, at the same time, the safety accident brought by a fact that an oil pipe is fractured and the lifting oil cylinder falls off quickly is well prevented, the size of a valve body is reduced, a connecting pipeline is simplified, maintaining time is saved, and working efficiency and stability and safety of the system are improved.
Description
Technical field
The utility model relates to a kind of rig feeding hydraulic system, specifically is a kind of all-hydraulic top drive drilling feeding hydraulic system.
Background technology
All-hydraulic top drive drilling feeding hydraulic system of the prior art (as shown in Figure 1), in this system, variable pump provides power source for fast feed, and constant displacement pump provides power source for feeding at a slow speed; Control banked direction control valves (6) by control crank and reach the speed of regulating fast feed, control speed and the downforce of feeding at a slow speed by overflow valve.Feeding is made up to realize by constant displacement pump, overflow valve and hand-operated direction valve at a slow speed, not only efficient is low for this feeding hydraulic system, energy consumption big, the oil temperature is high, the banked direction control valves volume is big, and when fast feed, the T mouth of the speed governing overflow valve in the feeding loop need bear high pressure at a slow speed, needs to adopt special overflow valve.In addition, when the pipeline rupture between rig elevating ram and the banked direction control valves, oil cylinder is stop motion at once, can fall rapidly, causes fatal crass's accident, and this has had a strong impact on operating efficiency, stability and the safety of rig.
The utility model content
Problem at above-mentioned prior art existence, the utility model provides a kind of all-hydraulic top drive drilling feeding hydraulic system, the problem of solve that efficient is low, energy consumption is big, overflow valve T bearing high pressure when oily temperature height and fast feed, prevent breaking owing to oil pipe, the security incident of holding oil cylinder to descend rapidly and bringing, reduce valve volume, simplify connecting line, save maintenance time.
To achieve these goals, the utility model comprises fuel tank, guide's joystick I, guide's joystick II, oil cylinder, overflow valve I, overflow valve II, reversal valve, one way valve I, hydraulic pressure control one way valve and one way valve II; Also comprise load sensitive pump I, load sensitive pump II, banked direction control valves, hydraulic control proportional reversing valve and explosion-proof valve, banked direction control valves is the bigeminy banked direction control valves.
Fuel tank is connected with the S mouth of load sensitive pump I and load sensitive pump II respectively, the P mouth of load sensitive pump I is connected with the P mouth of hydraulic control proportional reversing valve, the A mouth of hydraulic control proportional reversing valve is by the one way valve I, one the tunnel is connected with the A mouth of banked direction control valves, another road is connected with fuel tank with reversal valve by the overflow valve I, the B mouth of hydraulic control proportional reversing valve is connected with the B mouth of banked direction control valves by hydraulic pressure control one way valve, the T mouth of hydraulic control proportional reversing valve directly is connected with fuel tank, the a of hydraulic control proportional reversing valve, the b mouth respectively with a of guide's joystick II, the b mouth connects, and a mouth of hydraulic control proportional reversing valve connects with the control mouth of reversal valve, and the b mouth connects with the Dr mouth of explosion-proof valve;
The A mouth of load sensitive pump is connected with the P mouth of banked direction control valves, the A mouth of banked direction control valves is connected with the A mouth of explosion-proof valve, the B mouth of banked direction control valves is connected with the rod chamber of oil cylinder, the T mouth of banked direction control valves is connected with fuel tank, the a of banked direction control valves, b mouth are connected with a, the b mouth of guide's joystick I respectively, and a mouth of banked direction control valves connects with the control mouth of reversal valve, and the b mouth connects with the Dr mouth of explosion-proof valve, and the A of banked direction control valves, B mouth interconnect with A, the B mouth of hydraulic control proportional reversing valve respectively;
Explosion-proof valve is installed on the outer wall of oil cylinder, and the A mouth of explosion-proof valve is connected by an one way valve II with the T mouth, and the C mouth of explosion-proof valve is connected with the rodless cavity of oil cylinder.
Compared with prior art, the beneficial effects of the utility model are:
1. in feeding at a slow speed, replace constant displacement pump by load sensitive pump, the hydraulic control proportional reversing valve replaces common reversal valve, replace the overflow valve on the working connection to regulate downforce by the overflow valve pressure regulation on the LS feedback oil circuit, can well solve that efficient is low, energy consumption is big, when oily temperature height and fast feed, overflow valve T mouthpiece is subjected to the problem of high pressure in the feeding loop at a slow speed.
2. between banked direction control valves and elevating ram, add explosion-proof valve, can prevent because during between the two pipeline rupture that elevating ram descends rapidly and the fatal crass's that brings security incident.
3. replace six banked direction control valves by the bigeminy banked direction control valves, not only the volume of valve own is little, and also simplification accordingly of connecting line, has saved the maintenance and repair time.
In sum, this all-hydraulic top drive drilling feeding hydraulic system has not only improved the operating efficiency of hydraulic system, has reduced energy consumption and oil temperature, also reduces valve volume simultaneously, simplifies connecting line, saves maintenance time.In addition, this feeding hydraulic system can well prevent because during pipeline rupture between banked direction control valves and the elevating ram, and elevating ram descends rapidly and the security incident brought, thus the operating efficiency, stability and the safety that have improved rig.
Description of drawings
Fig. 1 is all-hydraulic top drive drilling feeding hydraulic system schematic diagram in the prior art;
Fig. 2 is all-hydraulic top drive drilling feeding hydraulic system schematic diagram of the present utility model.
Among the figure: 1, load sensitive pump I, 2, the load sensitive pump II, 3, banked direction control valves, 4, hydraulic control proportional reversing valve, 5, fuel tank, 6, guide's joystick I, 7, guide's joystick II, 8, explosion-proof valve, 9, oil cylinder, 10, overflow valve I, 11, reversal valve, 12, the one way valve I, 13, hydraulic pressure control one way valve, 14, one way valve II, 15, the overflow valve II, 16, constant displacement pump.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 2, the all-hydraulic top drive drilling feeding of the utility model hydraulic system is in when work, and the drill-in fluid pressing system is divided into two oil circuits, and an oil circuit provides power when giving rig fast feed, and oil circuit provides power at a slow speed during feeding for rig.
When fast feeding at a slow speed, replace constant displacement pump by load sensitive pump, fuel tank 5 links to each other with the S mouth of load sensitive pump 1, the P mouth of load sensitive pump 1 links to each other with the P mouth of hydraulic control proportional reversing valve 4, the A mouth of hydraulic control proportional reversing valve 4 is by one way valve I 12, one the tunnel connects with the A mouth of banked direction control valves 3, this banked direction control valves 3 has replaced six banked direction control valves of the prior art for the bigeminy banked direction control valves, the A mouth of hydraulic control proportional reversing valve 4 is communicated with fuel tank 5 by reversal valve 11 and overflow valve 10 by another road of one way valve I 12, the B mouth of hydraulic control proportional reversing valve 4 is connected by hydraulic control one-way valve 13 and the B mouth of banked direction control valves 3, direct and fuel tank 5 connections of the T mouth of hydraulic control proportional reversing valve 4, the a of hydraulic control proportional reversing valve 4, the b mouth respectively with a of guide's joystick II 7, the b mouth is communicated with, and a mouth of hydraulic control proportional reversing valve 4 is connected with the control mouth of reversal valve 11, and the b mouth is communicated with the Dr mouth of explosion-proof valve 8.At a slow speed during feeding, the speed of feeding is controlled the openings of sizes of hydraulic control proportional reversing valve 4 by guide's handle II 7, and explosion-proof valve 8 openings of sizes realize that the pressure of feeding is regulated by overflow valve II 15.
When fast feed, fuel tank 5 links to each other with the S mouth of load sensitive pump II 2, the A mouth of load sensitive pump II 2 links to each other with the P mouth of banked direction control valves 3, the A mouth of banked direction control valves 3 links to each other with the A mouth of explosion-proof valve 8, the B mouth of banked direction control valves 3 is communicated with the rod chamber of oil cylinder 9, the T mouth of banked direction control valves 3 and fuel tank 5 are connected, the a of banked direction control valves 3, b mouth link to each other with a, the b mouth of guide's joystick I 6 respectively, and a mouth of banked direction control valves 3 is connected with the control mouth of reversal valve 11, the b mouth is communicated with the Dr mouth of explosion-proof valve 8, and the A of banked direction control valves 3, B mouth are interconnected with A, the B mouth of hydraulic control proportional reversing valve 4 respectively.During fast feed, openings of sizes and explosion-proof valve 8 openings of sizes that the speed of feeding is controlled banked direction control valves 3 by guide's handle I 6 realize.
Explosion-proof valve 8 is installed on the outer wall of oil cylinder 9, and the A mouth of explosion-proof valve 8 and T mouth are connected by an one way valve II 14, and the C mouth of explosion-proof valve 8 is communicated with the rodless cavity of oil cylinder 9.
Claims (1)
1. an all-hydraulic top drive drilling feeding hydraulic system comprises fuel tank (5), guide's joystick I (6), guide's joystick II (7), oil cylinder (9), overflow valve I (10), overflow valve II (15), reversal valve (11), one way valve I (12), hydraulic pressure control one way valve (13) and one way valve II (14); It is characterized in that also comprise load sensitive pump I (1), load sensitive pump II (2), banked direction control valves (3), hydraulic control proportional reversing valve (4) and explosion-proof valve (8), banked direction control valves (3) is the bigeminy banked direction control valves;
Fuel tank (5) is connected with the S mouth of load sensitive pump I (1) with load sensitive pump II (2) respectively, the P mouth of load sensitive pump I (1) is connected with the P mouth of hydraulic control proportional reversing valve (4), the A mouth of hydraulic control proportional reversing valve (4) is by one way valve I (12), one the tunnel is connected with the A mouth of banked direction control valves (3), another road is connected with fuel tank (5) with reversal valve (11) by overflow valve I (10), the B mouth of hydraulic control proportional reversing valve (4) is connected by the B mouth of hydraulic pressure control one way valve (13) with banked direction control valves (3), the T mouth of hydraulic control proportional reversing valve (4) directly is connected with fuel tank (5), the a of hydraulic control proportional reversing valve (4), the b mouth respectively with a of guide's joystick II (7), the b mouth connects, and the control mouth of the same reversal valve of a mouth (11) of hydraulic control proportional reversing valve (4) connects, and the Dr mouth of the same explosion-proof valve of b mouth (8) connects;
The A mouth of load sensitive pump (2) is connected with the P mouth of banked direction control valves (3), the A mouth of banked direction control valves (3) is connected with the A mouth of explosion-proof valve (8), the B mouth of banked direction control valves (3) is connected with the rod chamber of oil cylinder (9), the T mouth of banked direction control valves (3) is connected with fuel tank (5), the a of banked direction control valves (3), the b mouth respectively with a of guide's joystick I (6), the b mouth connects, and the control mouth of the same reversal valve of a mouth (11) of banked direction control valves (3) connects, the Dr mouth of the same explosion-proof valve of b mouth (8) connects, the A of banked direction control valves (3), the B mouth respectively with the A of hydraulic control proportional reversing valve (4), the B mouth interconnects;
Explosion-proof valve (8) is installed on the outer wall of oil cylinder (9), and the A mouth of explosion-proof valve (8) is connected by an one way valve II (14) with the T mouth, and the C mouth of explosion-proof valve (8) is connected with the rodless cavity of oil cylinder (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706057 CN203066853U (en) | 2012-12-19 | 2012-12-19 | Full hydraulic top drive drilling machine feed hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220706057 CN203066853U (en) | 2012-12-19 | 2012-12-19 | Full hydraulic top drive drilling machine feed hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203066853U true CN203066853U (en) | 2013-07-17 |
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ID=48765663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220706057 Expired - Lifetime CN203066853U (en) | 2012-12-19 | 2012-12-19 | Full hydraulic top drive drilling machine feed hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203066853U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032020A (en) * | 2012-12-19 | 2013-04-10 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hydraulic feeding system of full-automatic top drive drilling machine |
-
2012
- 2012-12-19 CN CN 201220706057 patent/CN203066853U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103032020A (en) * | 2012-12-19 | 2013-04-10 | 徐工集团工程机械股份有限公司江苏徐州工程机械研究院 | Hydraulic feeding system of full-automatic top drive drilling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20141119 |
|
| RGAV | Abandon patent right to avoid regrant |