CN212838646U - Hydraulic control system and top drive balance mechanism with same - Google Patents
Hydraulic control system and top drive balance mechanism with same Download PDFInfo
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- CN212838646U CN212838646U CN202020971107.1U CN202020971107U CN212838646U CN 212838646 U CN212838646 U CN 212838646U CN 202020971107 U CN202020971107 U CN 202020971107U CN 212838646 U CN212838646 U CN 212838646U
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Abstract
The utility model provides a hydraulic control system and have its top drive balance mechanism, wherein, hydraulic control system includes: the balance oil cylinder is used for driving the execution component to move; the oil inlet pipeline is provided with a first pressure reduction overflow valve to control the pressure of oil in the oil inlet pipeline through the first pressure reduction overflow valve, the first pressure reduction overflow valve is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder; the inlet end of the first branch is communicated with the second oil outlet of the first pressure reduction overflow valve, and the outlet end of the first branch is communicated with the balance oil cylinder; and the second overflow valve is arranged on the first branch to control the pressure of the oil in the first branch through the second overflow valve, so that the oil flows into the balance oil cylinder after sequentially flowing through the first pressure reduction overflow valve and the second overflow valve, and the problem of short service life of the top drive balance mechanism in the prior art is solved.
Description
Technical Field
The utility model relates to a hydraulic system control technical field particularly, relates to a hydraulic control system and have its top drive balance mechanism.
Background
In the process of oil exploitation, a top drive balance mechanism is generally connected with a drill rod and is in threaded connection with the drill rod, and in the normal drilling process, as a check valve is arranged in a hydraulic system of the top drive balance mechanism, the conditions of tripping and the like can be caused, so that the stress of an oil cylinder is increased, and the reciprocating stretching of the oil cylinder caused by tripping can also cause the easy fatigue of the connection part of the oil cylinder.
In addition, in the process of making up the broken string, the mutual pulling force between the balance mechanism is driven on the top and the drill rod is great, so that the threads on the lower part of the balance mechanism are easily abraded, and the repeated connection between the balance mechanism and the drilling well can cause the thread failure, thereby reducing the service life of the mechanism.
SUMMERY OF THE UTILITY MODEL
A primary object of the present invention is to provide a hydraulic control system and a top drive balance mechanism having the same, so as to solve the problem of the low service life of the top drive balance mechanism in the prior art.
In order to achieve the above object, according to an aspect of the present invention, there is provided a hydraulic control system including: the balance oil cylinder is used for driving the execution component to move; the oil inlet pipeline is provided with a first pressure reduction overflow valve to control the pressure of oil in the oil inlet pipeline through the first pressure reduction overflow valve, the first pressure reduction overflow valve is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder; the inlet end of the first branch is communicated with the second oil outlet of the first pressure reduction overflow valve, and the outlet end of the first branch is communicated with the balance oil cylinder; and the second overflow valve is arranged on the first branch to control the pressure of the oil in the first branch through the second overflow valve, so that the oil flows into the balance oil cylinder after sequentially flowing through the first pressure reduction overflow valve and the second overflow valve.
Further, the hydraulic control system further includes: the inlet end of the second branch is communicated with a second oil outlet of the first pressure reduction overflow valve; and the electromagnetic directional valve is arranged on the second branch path so as to control the flow direction of the oil liquid flowing through the first pressure reduction overflow valve through the electromagnetic directional valve.
Further, the hydraulic control system further includes: the outlet end of the first branch and the outlet end of the second branch are communicated with the inlet end of the confluence pipeline, and the outlet end of the confluence pipeline is communicated with the balance oil cylinder.
Further, the hydraulic control system further includes: a first port of the fourth branch is communicated with the confluence pipeline, and a second port of the fourth branch is communicated with the balance oil cylinder; and the third overflow valve is arranged on the confluence pipeline and used for controlling the pressure of the oil in the confluence pipeline.
Further, the hydraulic control system further includes: the first check valve is arranged on the oil inlet pipeline, so that oil flows into the balance oil cylinder after sequentially flowing through the first check valve and the first pressure reduction overflow valve.
Further, the balance oil cylinder comprises a first cavity and a second cavity, a piston rod of the balance oil cylinder is arranged in the first cavity, the piston rod is connected with the execution component, and the inlet end of the oil inlet pipeline and the inlet end of the first branch are communicated with the first cavity.
Further, the hydraulic control system further includes: and the first pressure measuring component is communicated with the first cavity so as to detect the pressure in the first cavity of the balance oil cylinder through the first pressure measuring component.
Further, the hydraulic control system further includes: and the second pressure measuring component is communicated with the second chamber so as to detect the pressure of the second chamber of the balance oil cylinder through the second pressure measuring component.
Further, the hydraulic control system further includes: and the energy accumulator is communicated with the oil cavity of the balance oil cylinder so as to store oil through the energy accumulator.
According to the utility model discloses an on the other hand provides a balance mechanism is driven on top, including hydraulic control system, hydraulic control system is foretell hydraulic control system.
By applying the technical scheme of the utility model, the hydraulic control system comprises a balance oil cylinder, an oil inlet pipeline, a first branch and a second overflow valve, wherein the balance oil cylinder is used for driving an execution part to move; the outlet end of the oil inlet pipeline is communicated with the balance oil cylinder, a first pressure reduction overflow valve is arranged on the oil inlet pipeline so as to control the pressure of oil in the oil inlet pipeline through the first pressure reduction overflow valve, the first pressure reduction overflow valve is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder; the inlet end of the first branch is communicated with the second oil outlet of the first pressure reduction overflow valve, the outlet end of the first branch is communicated with the balance oil cylinder, and the second overflow valve is arranged on the first branch to control the pressure of oil in the first branch through the second overflow valve so that the oil flows into the balance oil cylinder after flowing through the first pressure reduction overflow valve and the second overflow valve in sequence. The pressure intensity increase after setting up like this and can making fluid through first decompression overflow valve and second overflow valve makes the pressure increase of balance cylinder, and then makes balance cylinder drive the executive component and be in the suspended state, when carrying out the break-out, comes the distance change of two screwed joint in the compensation threaded connection in-process through the formation of tensile balance cylinder, avoids causing quick wearing and tearing to the screw thread, increases the life that the balance mechanism was driven on the top.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows a schematic structural diagram of an embodiment of a hydraulic control system according to the present invention;
fig. 2 shows a schematic structural view of a first embodiment of a hydraulic control system according to the present invention; and
fig. 3 shows a schematic structural diagram of a second embodiment of a hydraulic control system according to the present invention.
Wherein the figures include the following reference numerals:
1. a balancing oil cylinder; 2. an oil inlet pipeline; 3. a first pressure reducing overflow valve; 4. a first branch; 5. a second overflow valve; 6. a second branch circuit; 7. an electromagnetic directional valve; 8. a confluence pipeline; 9. a third overflow valve; 10. a first check valve; 11. a first pressure measuring member; 12. a second pressure measurement member; 13. an accumulator; 14. a third branch; 15. and a fourth branch.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides a hydraulic control system please refer to fig. 1 to fig. 3, include: the balance oil cylinder 1 is used for driving the execution component to move; the oil inlet pipeline 2 is provided with an outlet end communicated with the balance oil cylinder 1, the oil inlet pipeline 2 is provided with a first pressure reducing overflow valve 3 so as to control the pressure of oil in the oil inlet pipeline 2 through the first pressure reducing overflow valve 3, the first pressure reducing overflow valve 3 is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder 1; the inlet end of the first branch 4 is communicated with the second oil outlet of the first pressure reduction overflow valve, and the outlet end of the first branch 4 is communicated with the balance oil cylinder 1; and the second overflow valve 5 is arranged on the first branch 4, so that the pressure of the oil in the first branch 4 is controlled through the second overflow valve 5, and the oil flows into the balance oil cylinder 1 after sequentially flowing through the first pressure reduction overflow valve 3 and the second overflow valve 5.
According to the utility model provides a hydraulic control system, including balance cylinder 1, oil inlet pipeline 2, first branch 4 and second overflow valve 5, wherein, balance cylinder 1 is used for driving the executive component to move; the outlet end of the oil inlet pipeline 2 is communicated with the balance oil cylinder 1, and a first pressure reducing overflow valve 3 is arranged on the oil inlet pipeline 2 so as to control the pressure of oil in the oil inlet pipeline 2 through the first pressure reducing overflow valve 3; the inlet end of the first branch 4 is communicated with the second oil outlet of the first pressure reduction overflow valve, the outlet end of the first branch 4 is communicated with the balance oil cylinder 1, and the second overflow valve 5 is arranged on the first branch 4 to control the pressure of oil in the first branch 4 through the second overflow valve 5, so that the oil flows into the balance oil cylinder 1 after sequentially flowing through the first pressure reduction overflow valve 3 and the second overflow valve 5. The pressure intensity increase after setting up like this and can making fluid through first decompression overflow valve 3 and second overflow valve 5 makes balance cylinder 1's pressure increase, and then makes balance cylinder drive the executive component and be in the suspended state, when going on the break-out, comes the distance change of two screwed joint among the compensation threaded connection process through tensile balance cylinder's formation, avoids causing quick wearing and tearing to the screw thread, increases the life that the balance mechanism was driven on the top.
In an embodiment of the present invention, the hydraulic control system further includes: the inlet end of the second branch 6 is communicated with a flow passage of the first pressure reducing overflow valve; and the electromagnetic directional valve 7 is arranged on the second branch circuit 6, so that the flow direction of the oil liquid flowing through the first pressure reduction overflow valve 3 is controlled through the electromagnetic directional valve 7. The arrangement enables the top drive balance mechanism to directly flow into the balance oil cylinder 1 through the first pressure reduction overflow valve 3 in the normal working process, and when the tripping action is needed, the flow direction of oil flowing through the first pressure reduction overflow valve 3 is controlled through the electromagnetic directional valve 7, so that the oil is pressurized after passing through the second overflow valve 5. It should be noted here that the first branch 4 and the second branch 6 are both communicated with the second oil outlet of the first pressure-reducing overflow valve 3 through an oil outlet pipeline, and the oil flows to the first branch 4 and the second branch 6 through the outlet of the second oil outlet of the first pressure-reducing overflow valve 3 respectively.
In a specific implementation, the hydraulic control system further comprises: the outlet end of the confluence pipeline 8, the outlet end of the first branch 4 and the outlet end of the second branch 6 are communicated with the inlet end of the confluence pipeline 8, and the outlet end of the confluence pipeline 8 is communicated with the balance oil cylinder 1. Specifically, the outlet end of the confluence pipeline 8 is communicated with an oil tank of the hydraulic control system, and the oil tank is communicated with the second chamber of the balance oil cylinder 1.
In order to keep the oil pressure in the hydraulic control system within a safe range, the hydraulic control system further comprises: a first port of the fourth branch 15 is communicated with the confluence pipeline 8, and a second port of the fourth branch 15 is communicated with the balance oil cylinder 1; and the third overflow valve 9, wherein the third overflow valve 9 is arranged on the fourth branch circuit 15, so that the pressure of the oil in the fourth branch circuit 15 is controlled through the third overflow valve 9. The overload protection pressure of the control system is set through the third overflow valve 9, and the corresponding weight and torque of the pipe column are borne. Specifically, the fourth branch 15 is communicated with the first chamber of the balancing cylinder 1 to control the maximum pressure of the oil in the first chamber through the third overflow valve 9.
In order to avoid the oil liquid reflux in the balance oil cylinder 1, the hydraulic control system further comprises: the first check valve 10 and the first check valve 10 are arranged on the oil inlet pipeline 2, so that oil flows into the balance oil cylinder 1 after sequentially flowing through the first check valve 10 and the first pressure reduction overflow valve 3. When the oil inlet pressure in the oil inlet pipeline 2 disappears, the oil in the balance oil cylinder 1 is locked through the first check valve 10, and meanwhile, the overloaded high-pressure oil can be allowed to flow back through the first check valve 10.
Specifically, the balance oil cylinder 1 comprises a first cavity and a second cavity, a piston rod of the balance oil cylinder 1 is arranged in the first cavity, the piston rod is connected with the execution component, and an inlet end of the oil inlet pipeline 2 and an inlet end of the first branch pipeline 4 are communicated with the first cavity.
In order to facilitate the detection of the oil pressure in the balance oil cylinder 1, the hydraulic control system further comprises: and a first load cell 11, the first load cell 11 communicating with the first chamber to detect a pressure in the first chamber of the balancing cylinder 1 through the first load cell 11.
The hydraulic control system further includes: and a second load cell 12, the second load cell 12 communicating with the second chamber to detect the pressure of the second chamber of the balancing cylinder 1 through the second load cell 12.
The hydraulic control system further includes: and the energy accumulator 13, wherein the energy accumulator 13 is communicated with the oil cavity of the balance oil cylinder 1 so as to store oil through the energy accumulator 13. The oil storage device is arranged to store oil through the energy accumulator 13, so that the impact of working conditions such as a jump drill on the balance oil cylinder 1 can be relieved, the oil in the balance oil cylinder 1 is supplemented in the process of screwing off, and when an oil inlet pipeline is damaged, the screwing off action can be still completed through the oil in the energy accumulator 13.
In another embodiment provided by the present invention, as shown in fig. 3, the hydraulic control system further includes a third branch 14, the third branch 14 is communicated with the first branch 4, the inlet end of the third branch 14 is communicated with the second oil outlet of the first pressure-reducing overflow valve, the first branch 4 is communicated with the third branch 14, wherein the first channel of the electromagnetic directional valve is communicated with the third branch 14, and the second channel of the electromagnetic directional valve is communicated with the first branch 4, so as to control the flow direction of the oil flowing through the first pressure-reducing overflow valve 3 through the electromagnetic directional valve.
The utility model also provides a balance mechanism is driven on top, including hydraulic control system, hydraulic control system is the hydraulic control system of above-mentioned embodiment.
From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects:
according to the utility model provides a hydraulic control system, including balance cylinder 1, oil inlet pipeline 2, first branch 4 and second overflow valve 5, wherein, balance cylinder 1 is used for driving the executive component to move; the outlet end of the oil inlet pipeline 2 is communicated with the balance oil cylinder 1, a first pressure reducing overflow valve 3 is arranged on the oil inlet pipeline 2 so as to control the pressure of oil in the oil inlet pipeline 2 through the first pressure reducing overflow valve 3, the first pressure reducing overflow valve 3 is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder 1; the inlet end of the first branch 4 is communicated with the second oil outlet of the first pressure reduction overflow valve 3, the outlet end of the first branch 4 is communicated with the balance oil cylinder 1, and the second overflow valve 5 is arranged on the first branch 4 to control the pressure of oil in the first branch 4 through the second overflow valve 5, so that the oil flows into the balance oil cylinder 1 after sequentially flowing through the first pressure reduction overflow valve 3 and the second overflow valve 5. The pressure intensity increase after setting up like this and can making fluid through first decompression overflow valve 3 and second overflow valve 5 makes balance cylinder 1's pressure increase, and then makes balance cylinder drive the executive component and be in the suspended state, when going on the break-out, comes the distance change of two screwed joint among the compensation threaded connection process through tensile balance cylinder's formation, avoids causing quick wearing and tearing to the screw thread, increases the life that the balance mechanism was driven on the top.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A hydraulic control system, comprising:
the balance oil cylinder (1) is used for driving the execution component to move;
the oil inlet pipeline (2), the outlet end of the oil inlet pipeline (2) is communicated with the balance oil cylinder (1), a first pressure reduction overflow valve (3) is arranged on the oil inlet pipeline (2) so as to control the pressure of oil in the oil inlet pipeline (2) through the first pressure reduction overflow valve (3), the first pressure reduction overflow valve (3) is provided with a first oil outlet and a second oil outlet, and the first oil outlet is communicated with the balance oil cylinder (1);
the inlet end of the first branch (4) is communicated with the second oil outlet of the first pressure reduction overflow valve (3), and the outlet end of the first branch (4) is communicated with the balance oil cylinder (1);
and the second overflow valve (5) is arranged on the first branch (4) to control the pressure of the oil in the first branch (4) through the second overflow valve (5), so that the oil flows into the balance oil cylinder (1) after sequentially flowing through the first pressure reduction overflow valve (3) and the second overflow valve (5).
2. The hydraulic control system of claim 1, further comprising:
the first branch (4) and the second branch (6) are arranged in parallel, and the inlet end of the second branch (6) is communicated with a second oil outlet of the first pressure reduction overflow valve (3);
the electromagnetic reversing valve (7) is arranged on the second branch (6) so as to control the flow direction of oil flowing through the first pressure reduction overflow valve (3) through the electromagnetic reversing valve (7).
3. The hydraulic control system of claim 2, further comprising:
the outlet end of the first branch (4) and the outlet end of the second branch (6) are communicated with the inlet end of the confluence pipeline (8), and the outlet end of the confluence pipeline (8) is communicated with the balance oil cylinder (1).
4. The hydraulic control system of claim 3, further comprising:
a fourth branch (15), wherein a first port of the fourth branch (15) is communicated with the confluence pipeline (8), and a second port of the fourth branch (15) is communicated with the balance oil cylinder (1);
and the third overflow valve (9), wherein the third overflow valve (9) is arranged on the fourth branch (15) so as to control the pressure of the oil in the fourth branch (15) through the third overflow valve (9).
5. The hydraulic control system of claim 1, further comprising:
the first check valve (10) is arranged on the oil inlet pipeline (2), so that oil flows into the balance oil cylinder (1) after sequentially flowing through the first check valve (10) and the first pressure reduction overflow valve (3).
6. The hydraulic control system according to claim 1, characterized in that the balancing cylinder (1) comprises a first chamber and a second chamber, a piston rod of the balancing cylinder (1) is arranged in the first chamber, the piston rod is connected with the actuating member, and the inlet end of the oil inlet pipeline (2) and the inlet end of the first branch (4) are both communicated with the first chamber.
7. The hydraulic control system of claim 6, further comprising:
a first pressure measuring unit (11), wherein the first pressure measuring unit (11) is communicated with the first chamber so as to detect the pressure in the first chamber of the balance oil cylinder (1) through the first pressure measuring unit (11).
8. The hydraulic control system of claim 6, further comprising:
a second pressure measuring unit (12), wherein the second pressure measuring unit (12) is communicated with the second chamber so as to detect the pressure of the second chamber of the balance oil cylinder (1) through the second pressure measuring unit (12).
9. The hydraulic control system according to any one of claims 1 through 8, characterized by further comprising:
the energy accumulator (13), the energy accumulator (13) with the oil pocket intercommunication of balance cylinder (1) to through energy accumulator (13) storage fluid.
10. A top drive counterbalance mechanism including a hydraulic control system, characterized in that the hydraulic control system is as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020971107.1U CN212838646U (en) | 2020-06-01 | 2020-06-01 | Hydraulic control system and top drive balance mechanism with same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020971107.1U CN212838646U (en) | 2020-06-01 | 2020-06-01 | Hydraulic control system and top drive balance mechanism with same |
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| CN212838646U true CN212838646U (en) | 2021-03-30 |
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| CN202020971107.1U Active CN212838646U (en) | 2020-06-01 | 2020-06-01 | Hydraulic control system and top drive balance mechanism with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076161A (en) * | 2022-05-24 | 2022-09-20 | 中国第一汽车股份有限公司 | Oil circuit system and engine with same |
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2020
- 2020-06-01 CN CN202020971107.1U patent/CN212838646U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115076161A (en) * | 2022-05-24 | 2022-09-20 | 中国第一汽车股份有限公司 | Oil circuit system and engine with same |
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