CN217481677U - Hydraulic control device for cable logging tractor - Google Patents
Hydraulic control device for cable logging tractor Download PDFInfo
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- CN217481677U CN217481677U CN202220806378.0U CN202220806378U CN217481677U CN 217481677 U CN217481677 U CN 217481677U CN 202220806378 U CN202220806378 U CN 202220806378U CN 217481677 U CN217481677 U CN 217481677U
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Abstract
The utility model discloses a cable logging tractor hydraulic control device has solved the problem that current hydraulic control device function singleness, occupation space are big, fail safe nature remains to improve. The technical scheme includes that the hydraulic control system comprises a hydraulic pump and a hydraulic control assembly which are positioned in a control bin, wherein an inlet of the hydraulic pump is communicated with the control bin, and an outlet of the hydraulic pump is connected with the hydraulic control assembly; the hydraulic control assembly comprises a first hydraulic oil pipeline and a second hydraulic oil pipeline, a pressure sensor is arranged on the first hydraulic oil pipeline, a high-pressure oil inlet of the first hydraulic oil pipeline is connected with a hydraulic pump, and a high-pressure oil outlet of the first hydraulic oil pipeline is connected with a high-pressure bin; and the second hydraulic oil pipeline is provided with an electromagnetic valve, a pressure relief oil inlet of the electromagnetic valve is connected with the high-pressure bin, and a pressure relief oil outlet of the electromagnetic valve is communicated with the control bin. The utility model discloses compact structure is reasonable, the space is little, have control, protection concurrently, purify a plurality of functions, fail safe nature good.
Description
Technical Field
The utility model relates to a cable tractor equipment, specific cable logging tractor hydraulic control device that says so for the borehole logging in oil field.
Background
At present, two tractors are used for cable logging in the petroleum industry, one is a mechanical tractor and a hydraulic tractor.
The hydraulic tractor takes hydraulic oil as a medium, the hydraulic oil is pressurized by the hydraulic pump to push the traction arm to open, and meanwhile, when the traction arm is opened, a certain positive pressure is exerted on the inner wall of the sleeve, so that the tractor can generate traction force to move in the sleeve. The pushing section of the tractor pushing nipple is used for providing power for opening and closing of a traction arm by using hydraulic oil as a medium, and the existing tractor pushing nipple has the following problems:
(1) the traction arm of the tractor can be clamped by sundries in the well in the underground moving process, the traction arm cannot be normally retracted, and the traction arm always keeps a positive pressure on the sleeve under the pressure action of the high-pressure bin, so that the accident that the traction arm is blocked is easily caused. (2) When the hydraulic pump works, the pressure of the high-pressure cabin can gradually rise, once the pressure exceeds the maximum sealing pressure value of the sealing ring in the high-pressure cabin, the liquid of a shaft can flow into the high-pressure cabin, and the tractor fails. (3) The traction arm moves back and forth, so that large impurities such as iron powder and oil blocks are easily generated and enter high-pressure hydraulic oil, and if the part of hydraulic oil is directly recycled, parts such as a valve and the like are easily blocked or abraded, the normal use of the device is affected, the traction wheel is abraded, and the traction arm is blocked when the traction arm is serious. (4) If the existing tractor pushing nipple is expected to have multiple functions of precise control, protection, hydraulic oil purification and monitoring, and a split device is adopted to realize the functions, a large enough oil bin space is needed, so that the length of the pushing nipple is too long, and the conveying of the tractor is directly influenced.
Disclosure of Invention
The utility model aims at solving the technical problem and providing a hydraulic control device of a cable logging tractor, which has the advantages of simple structure, small volume, compact and reasonable arrangement, control, protection, purification, and good safety and reliability.
The utility model discloses a hydraulic control device of a cable logging tractor, which comprises a hydraulic pump and a hydraulic control component which are positioned in a control bin, wherein the inlet of the hydraulic pump is communicated with the control bin, and the outlet of the hydraulic pump is connected with the hydraulic control component; the hydraulic control assembly comprises a first hydraulic oil pipeline and a second hydraulic oil pipeline, a pressure sensor is arranged on the first hydraulic oil pipeline, a high-pressure oil inlet of the first hydraulic oil pipeline is connected with a hydraulic pump, and a high-pressure oil outlet of the first hydraulic oil pipeline is connected with a high-pressure bin; and the second hydraulic oil pipeline is provided with an electromagnetic valve, a pressure relief oil inlet of the electromagnetic valve is connected with the high-pressure bin, and a pressure relief oil outlet of the electromagnetic valve is communicated with the control bin.
And a filter is arranged on a pipeline of the second hydraulic oil pipeline, which is close to the pressure relief oil inlet.
The first hydraulic oil pipeline is further provided with an emergency pressure relief pipeline connected with the control bin, and a one-way valve is arranged on the emergency pressure relief pipeline.
The filter is two-layer about, and the upper strata is the high pressure chamber, and the lower floor is for being equipped with the filtration storehouse of filter screen, high-pressure oil export is connected through the high pressure chamber to first hydraulic oil pipeline, pressure release oil import is connected through straining the storehouse to second hydraulic oil pipeline.
And a high-pressure oil inlet and a high-pressure oil outlet of the first hydraulic oil pipeline and a pressure relief oil inlet of the second hydraulic oil pipeline are arranged on the axial vertical central line of the control cabin.
In view of the problems in the background art, the inventors have made the following improvements: (1) the hydraulic control assembly is internally provided with a first hydraulic oil pipeline and a second hydraulic oil pipeline, pressurized hydraulic oil led out from the hydraulic pump is sent to the high-pressure bin by using the first hydraulic oil pipeline, meanwhile, a pressure sensor is arranged on the first hydraulic oil pipeline to directly measure the pressure of the first pipeline (also the pressure of the high-pressure oil bin), the measured data can be transmitted to the ground through a tractor circuit, and an engineer can directly control the hydraulic pump to adjust the pressure of the high-pressure bin according to the pressure data to meet the pressure required by the operation of the tractor; (2) first hydraulic oil pipeline still is equipped with the urgent pressure release pipeline of being connected with the control storehouse, establish the check valve on the urgent pressure release pipeline, when high-pressure storehouse pressure is greater than the check valve value, the check valve is automatic to be opened, carries out the pressure release to high-pressure storehouse, when high-pressure storehouse pressure is less than the check valve value pressure, check valve self-closing to the scope and the limit of restriction high-pressure storehouse pressure, in order to avoid the pressure in the high-pressure storehouse to exceed the biggest sealing pressure value of sealing washer, cause pit shaft liquid to flow in high-pressure storehouse, the problem of tractor trouble appears. (3) The hydraulic oil in the high-pressure bin is unloaded into the control bin by using the second hydraulic oil pipeline, the electromagnetic valve is arranged in the second hydraulic oil pipeline, before the hydraulic pump works, the electromagnetic valve is powered on, and the electromagnetic valve is closed, so that the high-pressure bin is isolated from the control bin. When the traction arm is blocked and needs to be folded in time, the power supply of the electromagnetic valve can be controlled to be disconnected, and the high-pressure bin is instantly communicated with the control bin through the second hydraulic oil pipeline, so that the pressure of the high-pressure bin is rapidly reduced, the traction arm is automatically folded, and the tractor is effectively protected. 4) The second hydraulic oil pipeline is also provided with a filter, hydraulic oil before entering the filter is filtered to remove large impurities such as iron powder, oil blocks and the like in the hydraulic oil, and the electromagnetic valve channel is prevented from being blocked; furthermore, the filter is an upper layer and a lower layer which are sealed and isolated, the upper layer is a high-pressure cavity, the lower layer is a filtering bin, and the upper layer and the lower layer are detachably connected, so that a filter screen of the filtering bin can be conveniently replaced; the first hydraulic oil pipeline is connected with the high-pressure oil inlet through the high-pressure cavity, and the second hydraulic oil pipeline is connected with the pressure relief oil outlet through the filter. On one hand, the high-pressure cavity is favorable for improving the pressure resistance of the high-pressure cabin shell; on the other hand, can have vibrations or card pause when tractor operating condition advances, the utility model discloses a this kind of filter with bilayer structure realizes that upper and lower vertical arrangement and fixed being in the same place with the export of first hydraulic pressure oil pipe way and second hydraulic pressure oil pipe way, improves the holding power of pipeline on the one hand by a wide margin, reduces the influence that the vibration brought to the pipeline, and on the other hand adopts and piles up the mode, enables the structure compacter, improves space utilization, reduces to push away the length of section. On the premise of being provided with a plurality of components such as a pressure sensor, an electromagnetic valve, a filter and the like, two inlets and outlets connected with the high-pressure cabin can be arranged in the middle, so that the high-pressure cabin keeps stable and balanced pressure in the using process, and the usability of the equipment is improved.
The utility model discloses simple structure, small, arrange compact reasonable, have control, protection, purify a plurality of functions concurrently, fail safe nature is good, long service life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the installation of the hydraulic control assembly 1 in the control cabin.
Fig. 3 is a partial structural schematic view of a filter cartridge 12.2 in the filter 12.
Wherein, 1 hydraulic control assembly, 2 hydraulic pump, 2.2 hydraulic pump support, 3 high-pressure cabins, 4 control cabins, 5 low-pressure cabins;
the device comprises a pressure sensor 11, a filter 12, a high-pressure cavity 12.1, a filter bin 12.2, a sealing ring 12.3, a plug 12.4, an electromagnetic valve 13, a one-way valve 14, an emergency pressure relief pipeline 15, a first hydraulic oil pipeline 16.1, a high-pressure oil inlet 16.2, a high-pressure oil outlet 17.2, a second hydraulic oil pipeline 17.1, a pressure relief oil inlet 17.2 and a pressure relief oil outlet 17.2.
Detailed Description
The invention will be further explained with reference to the drawings:
referring to fig. 1 and 2, a low pressure chamber 5, a control chamber 4 and a high pressure chamber 3 are all installed in a pushing short section of a hydraulic tractor, the control chamber 4 is provided with a hydraulic pump 2 (a hydraulic pump body is installed on a hydraulic pump support 2.2, the rear section of the hydraulic pump 2 body is not shown) and a hydraulic control assembly 1, an inlet of the hydraulic pump 2 is communicated with a control chamber 7, and an outlet of the hydraulic pump 2 is connected with the hydraulic control assembly 1; the hydraulic control assembly 1 comprises a first hydraulic oil pipeline 16 and a second hydraulic oil pipeline 17, and the diameters of the pipelines are 2-3 mm;
the first hydraulic oil pipeline 16 is provided with a pressure sensor 11, a high-pressure oil inlet 16.1 of the pressure sensor is connected with an outlet of the hydraulic pump 2 (the insertion depth of a connecting part is less than the limiting distance of the limiting pin component B), and a high-pressure oil outlet 16.2 is connected with the high-pressure bin 3; the first hydraulic oil pipeline 16 is communicated with the control cabin 7 through an emergency pressure relief pipeline 15, and a one-way valve 14 is arranged on the emergency pressure relief pipeline 15.
The high-pressure cabin 3 is connected to the pressure release oil import 17.1 of second hydraulic oil pipeline 17, and pressure release oil export 17.2 connection control storehouse 7, be equipped with solenoid valve 13 and filter 12 on the second hydraulic oil pipeline, filter 12 is located the pipeline that is close to pressure release oil import 17.1.
Referring to fig. 3, the filter is arranged in the control device and is divided into an upper layer and a lower layer, the upper layer is a high-pressure cavity 12.1, the lower layer is a filter bin 12.2 provided with a filter screen larger than 35 meshes, and the upper layer and the lower layer are detachably sealed and isolated through a sealing ring 12.3 and a plug 12.4, so that the filter screen can be conveniently replaced; the first hydraulic oil pipeline 16 is connected with a high-pressure oil outlet 16.2 through a high-pressure cavity 12.1, and the second hydraulic oil pipeline 17 is connected with a pressure relief oil inlet 17.1 through a filter bin 12.2.
The filter bin 12.2 is arranged on an axial vertical central line of the control bin 4, and the high-pressure oil inlet 16.1 and the high-pressure oil outlet 16.2 of the first hydraulic oil pipeline 16 and the pressure relief oil inlet 17.1 of the second hydraulic oil pipeline 17 are also arranged on the axial vertical central line of the control bin 4.
The working principle is as follows:
the tractor pushes away to nipple joint through hydraulic pressure and produces high pressure, opens the draft arm of pulling the section, in hydraulic control subassembly 1: the hydraulic pump 2 pressurizes the hydraulic oil in the control bin 4 and then sends the pressurized hydraulic oil into the hydraulic control component 1, and the pressurized hydraulic oil enters the high-pressure bin 3 from a high-pressure oil outlet 16.2 through a first hydraulic oil pipeline 16 and a high-pressure cavity 12.1 to provide pressure for a traction section; the control cabin 4 is also communicated with the low-pressure cabin 5, and low-pressure hydraulic oil can flow between the control cabin 4 and the low-pressure cabin 5.
When the pressure sensor 11 measures the pressure in the first hydraulic oil pipeline 16 (also the pressure of the high-pressure cabin 3) in real time, the measured data can be transmitted to the ground through a tractor circuit, and an engineer can directly control the hydraulic pump 2 to adjust the pressure of the high-pressure cabin 3 according to the pressure data so as to meet the proper pressure required by the tractor;
when the pressure of the high-pressure cabin is greater than the threshold value of the one-way valve 14, the one-way valve 14 is automatically opened, hydraulic oil in the high-pressure cabin 3 quickly flows into the control cabin 4 through the emergency pressure relief pipeline 15 to relieve the pressure of the high-pressure cabin 3, and when the pressure of the high-pressure cabin 3 after pressure relief is lower than the threshold value pressure of the one-way valve 14, the one-way valve 14 is automatically closed, so that the range and the limit of the pressure of the high-pressure cabin 3 are limited, the problem that the shaft liquid flows into the high-pressure cabin 3 and the tractor breaks down due to the fact that the pressure in the high-pressure cabin 3 exceeds the maximum sealing pressure value of the sealing ring is avoided.
The opening and closing of the second hydraulic oil pipeline 17 are controlled by the electromagnetic valve 13, before the hydraulic pump 2 works, the electromagnetic valve 13 is powered on, and the valve of the electromagnetic valve 13 is closed, so that the high-pressure cabin 3 is isolated from the control cabin 4. When the traction arm is blocked and needs to be folded in time, the power supply of the electromagnetic valve 13 can be controlled to be disconnected, the high-pressure bin 3 is instantly communicated with the control bin 4 through the second hydraulic oil pipeline 17, and hydraulic oil flows into the control bin 7 through the pressure relief oil inlet 17.1, the filter bin 12.2, the electromagnetic valve 13 and the pressure relief oil outlet 17.2 of the second hydraulic oil pipeline 17, so that the pressure of the high-pressure bin 3 is rapidly reduced, the traction arm is automatically folded, and the tractor is effectively protected.
Claims (5)
1. A hydraulic control device of a cable logging tractor comprises a hydraulic pump and a hydraulic control assembly which are positioned in a control bin, and is characterized in that an inlet of the hydraulic pump is communicated with the control bin, and an outlet of the hydraulic pump is connected with the hydraulic control assembly; the hydraulic control assembly comprises a first hydraulic oil pipeline and a second hydraulic oil pipeline, a pressure sensor is arranged on the first hydraulic oil pipeline, a high-pressure oil inlet of the first hydraulic oil pipeline is connected with a hydraulic pump, and a high-pressure oil outlet of the first hydraulic oil pipeline is connected with a high-pressure bin; and the second hydraulic oil pipeline is provided with an electromagnetic valve, a pressure relief oil inlet of the electromagnetic valve is connected with the high-pressure bin, and a pressure relief oil outlet of the electromagnetic valve is communicated with the control bin.
2. The wireline logging tractor hydraulic control of claim 1, wherein a filter is disposed in the second hydraulic fluid line adjacent the pressure relief inlet.
3. The hydraulic control device of the cable logging tractor according to claim 2, wherein the filter is divided into an upper layer and a lower layer, the upper layer is a high pressure cavity, the lower layer is a filter cabin provided with a filter screen, the first hydraulic oil pipeline is connected with the high pressure oil outlet through the high pressure cavity, and the second hydraulic oil pipeline is connected with the pressure relief oil inlet through the filter cabin.
4. The wireline logging tractor hydraulic control of claim 3, wherein the high pressure oil inlet and the high pressure oil outlet of the first hydraulic oil conduit and the pressure relief oil inlet of the second hydraulic oil conduit are disposed on an axial vertical centerline of the control pod.
5. The hydraulic control device of the cable logging tractor according to any one of claims 1 to 4, wherein the first hydraulic oil pipeline is further provided with an emergency pressure relief pipeline connected with the control cabin, and the emergency pressure relief pipeline is provided with a one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220806378.0U CN217481677U (en) | 2022-04-08 | 2022-04-08 | Hydraulic control device for cable logging tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220806378.0U CN217481677U (en) | 2022-04-08 | 2022-04-08 | Hydraulic control device for cable logging tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217481677U true CN217481677U (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220806378.0U Active CN217481677U (en) | 2022-04-08 | 2022-04-08 | Hydraulic control device for cable logging tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217481677U (en) |
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2022
- 2022-04-08 CN CN202220806378.0U patent/CN217481677U/en active Active
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