CN210317289U - High-temperature slim-hole bipolar plate sidewall contact device - Google Patents
High-temperature slim-hole bipolar plate sidewall contact device Download PDFInfo
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- CN210317289U CN210317289U CN201921342620.8U CN201921342620U CN210317289U CN 210317289 U CN210317289 U CN 210317289U CN 201921342620 U CN201921342620 U CN 201921342620U CN 210317289 U CN210317289 U CN 210317289U
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Abstract
The utility model discloses a high-temperature slim hole bipolar plate sidewall contact device, which comprises a shell, and a motor, a main shaft, a lead screw, a spring rod and a sidewall contact arm component which are positioned in the shell and are connected in sequence; a travel nut which is matched with the main shaft in a screwing way is arranged at the front end of the main shaft and is matched with the microswitch; the middle part of the shell is provided with a line pipe, one end of the line pipe is communicated with the cavity at the upper part of the shell, the other end of the line pipe is communicated with the lower joint, and the lower joint is internally provided with a capsule plug. The utility model has small structure external diameter, short length and light weight, and can meet the small borehole construction requirements; the motor is arranged at the upper end, and the balance piston is arranged at the lower end, so that the length of the instrument is greatly shortened, and the maintenance is convenient to repair, disassemble and maintain; the leg opening stress structure and the spring device can ensure that the spring is in a natural state when the measuring arm receives the leg under the action of the motor and the pushing and receiving system, and reduce the fatigue strength of the spring in a non-working state.
Description
Technical Field
The utility model belongs to oil well head equipment especially relates to a measure pushing away of highly deviated well and horizontal well relevant size and construct, a high temperature slim hole bipolar plate sidewall contact device specifically says so.
Background
In recent years, the construction quantity of side drilling and horizontal well logging is continuously increased, but the traditional microelectrode (microsphere) sidewall contact device in China is designed for a vertical well, two pushing arms are adopted, one pushing arm is provided with a microelectrode polar plate, the other pushing arm has a supporting function, the tail end of a spring rod is provided with a well diameter potentiometer, the two pushing arms have a linkage function, the pushing arms are unfolded and folded to drive the pull rod potentiometer to extend and contract, the size of a well hole is calculated by collecting the resistance value of the potentiometer, in the vertical well measurement process, the center of an instrument is overlapped with the center of the well hole, the pushing arms at two sides can be abutted against the well wall to complete microelectrode and well diameter measurement, but in the horizontal well and highly-deviated well logging construction, the instrument string has larger self weight, the center of the instrument cannot be overlapped with the center of the well hole, and the existing structure cannot meet the use.
The patent numbers are: 201510472300.4, title of the invention: the invention discloses a double-well-diameter microelectrode sidewall contact device, which comprises a driving component, a well-diameter arm component, a spring rod component and a measuring arm component which are assembled in sequence, wherein a switch component is arranged in the driving component, and the spring rod component is provided with an electrode plate component, and the technical key points are as follows: the driving assembly comprises a motor shell, a motor limited in the motor shell, a lead screw installed at the output end of the motor, a nut I limited on the lead screw, a switch assembly limited on the lead screw, and a joint sleeved outside the lead screw, wherein a needle bearing and a thrust bearing are limited between the lead screw and the joint, a plurality of sealing rings are arranged between the lead screw and the joint, and a plurality of contact pins are axially arranged at the end, close to the well diameter arm assembly, of the joint by taking the lead screw as a center; an oil inlet hole is formed in one side of the joint, an oil duct communicated with the oil inlet hole is formed in the joint, a jackscrew is arranged at an oil duct outlet, a spring II is limited in the jackscrew, and a steel ball is limited between the spring and the oil duct. The device has the advantages of simple structure, high measurement efficiency and the like.
However, the above structure has the following disadvantages: 1. the piston assembly structure is installed together with the potentiometer assembly, the assembly links are more, the length of the instrument is lengthened, the internal space is small, and the balance device needs to be disassembled every time the rubber ring is replaced and the potentiometer is maintained;
2. the spring is compressed to the maximum when the previous spring system works and the leg is folded, the defects are that the larger the borehole diameter leg is unfolded, the smaller the elastic force is, and meanwhile, when the conventional parking instrument borehole diameter leg is folded, the elastic performance of the spring is easily reduced due to the long-term extrusion of the spring;
3. the motor is below, is unfavorable for the wiring.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a high temperature slim hole bipolar plate sidewall contact device to solve the problem among the prior art.
The utility model discloses a realize through following technical scheme: a high-temperature slim hole bipolar plate sidewall contact device is characterized in that: comprises a shell, a motor, a main shaft and a screw rod; the motor is fixed on the inner side of the shell, a rotating shaft of the motor is fixedly connected with the main shaft, the lower end of the main shaft is fixedly connected with the nut, a lead screw is connected with the inner thread of the nut, the rear end of the lead screw is connected with a spring rod in a sliding manner, a spring is sleeved on the spring rod, the lower side of the spring rod is matched with the shell in a sliding manner, the lower end of the spring rod is connected with a pushing arm through a connecting rod, the pushing arm, a small polar plate, an auxiliary arm and a small spring rod are sequentially hinged, the small spring rod is connected to the shell in a sliding manner, and a small spring is sleeved on the outer side; the device also comprises a line pipe, one end of the line pipe is communicated with the cavity at the upper part of the shell, the other end of the line pipe is communicated with the lower joint, and a capsule with a capsule plug is arranged in the lower joint; a potentiometer is arranged at a gap between the screw nut and the shell, a pull rod of the potentiometer is matched with the end part of the spring rod, a compression spring which enables the pull rod to extend to the end part of the spring rod is arranged on the pull rod of the potentiometer, a stroke nut which is in screwed connection and matching with the main shaft is arranged at the front end of the main shaft, the stroke nut is matched with a micro switch, and the micro switch is matched with the motor; the spring rod is provided with a boss, and the shell is also provided with a limit block matched with the boss.
Further: still include the motor cabinet, the motor cabinet is fixed in the casing inboard, and the stroke nut matches with motor cabinet inner wall sliding connection, and the motor passes through the motor cabinet to be fixed in the casing.
The utility model has the advantages that: 1. the instrument has small outer diameter, short length and light weight, and can meet the construction requirement of slim holes; 2. the four hole diameter potentiometers can move independently, and can measure the average hole diameter and double hole diameters; 3. a double microelectrode polar plate can be arranged; 4. the motor is arranged at the upper end, the balance piston (capsule) is arranged at the lower end, the length of the instrument is greatly shortened, the maintenance is convenient, meanwhile, the power supply line is directly transmitted to the upper joint socket by the motor, and the power supply line does not contact slurry in the cavity of the instrument and has good insulativity; 5. the inside of the instrument is filled with oil and can be provided with through wires; 6. the leg opening stress structure and the spring device can ensure that the spring is in a natural state when the measuring arm retracts the leg under the action of the motor and the pushing and retracting system, so that the fatigue strength of the spring in a non-working state is reduced; 7. the piston assembly is arranged at the lowest end of the instrument, so that the connecting link and the instrument length are reduced, and the maintenance is easy.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The sequence numbers in the figures illustrate: 10 is a main shaft, 19 is a motor base, 21 is a stroke nut, 27 is a motor, 30 is a nut, 41 is a potentiometer, 44 is a screw rod, 48 is a spring rod, 49 is a big cap screw, 50 is a spring, 51 is a shell, 55 is a connecting rod, 57 is a connecting rod pin, 60 is a pushing arm, 63 is a conduit, 67 is a small polar plate, 69 is an auxiliary arm, 73 is a small spring rod, 74 is a small spring, 80 is a lower joint, 85 is a capsule plug, and 86 is a capsule.
Detailed Description
Fig. 1 illustrates a high-temperature slim hole bipolar plate sidewall contact device structure of the present invention, which includes a housing, a motor, a main shaft, and a lead screw;
the motor 27 is fixed on the upper part of the inner side of the shell (the direction in the using state is taken as the standard, namely the left side in fig. 1 is the upper part), the rotating shaft of the motor is fixedly connected with the main shaft and drives the main shaft to rotate, the main shaft is positioned on the inner side of the shell and is in rotating connection and matching with the shell, the lower end of the main shaft is fixedly connected with the nut 30, the inner side of the nut is in threaded connection with the lead screw 44, the rear end of the lead screw is provided with a spring rod hole matched with the spring rod 48 and is in sliding connection with the spring rod through the spring rod hole, the end part of the spring rod is provided with a large cap screw 49 to prevent the lead screw 44 from falling off the spring rod, the middle part of the spring rod 48 is provided with; the shell is also provided with a limiting block matched with the boss; the lower part of the spring rod boss is in sliding fit with the shell 51, the lower end of the spring rod is connected with the pushing arm 60 through the connecting rod 55, the pushing arm 60, the small pole plate 67, the sub-arm 69 and the small spring rod 73 are sequentially hinged to form a measuring arm component, the small spring rod 73 is in sliding fit with the shell, the small spring 74 is sleeved on the outer side of the small spring rod 73,
the spring rod is characterized by further comprising a line pipe 63, wherein one end of the line pipe 63 is communicated with a cavity in the upper portion of the shell, a circular through hole is formed in the part, corresponding to the lower end of the spring rod, of the shell, and one end of the line pipe is communicated with the circular through hole; the other end of the line pipe is communicated with the lower connector 80, and a capsule 86 with a capsule plug 85 is arranged in the lower connector 80;
the potentiometer 41 corresponding to the spring rod is arranged on the outer side of the screw nut, a compression spring is arranged between the pull rod of the potentiometer and the electric company meter body, the compression spring enables the pull rod of the potentiometer to extend outwards and abut against the end part of the spring rod, and therefore the pull rod of the potentiometer stretches and retracts according to the lifting of the spring rod, and the output of electric signals is achieved.
Preferably, a travel nut 21 which is screwed and matched with the main shaft is arranged at the front end of the main shaft, the travel nut is connected to the shell or the motor base in a sliding mode, movement is achieved through rotation of the main shaft, meanwhile, the travel nut is matched with a microswitch, the microswitch is matched with a motor power supply, and power on and power off of the motor are controlled.
Preferably, still include motor cabinet 19, the motor cabinet is fixed at the casing inboard, and the stroke nut matches with motor cabinet inner wall sliding connection, and the motor passes through the motor cabinet to be fixed in the casing.
The working process and the principle of the utility model are as follows;
when the legs are opened, the motor is powered, the motor rotates anticlockwise to drive the main shaft to rotate, the main shaft drives the screw to rotate, the screw drives the lead screw to move downwards, the lead screw drives the spring rod to move downwards through the spring, the lower end of the spring rod drives the measuring arm assembly to move through the connecting rod pin 57, and therefore the small pole plate 67 extends out, and the leg opening process is completed. In the leg opening process, the spring rod moves downwards under the action of the screw rod until the boss is contacted with the limiting block, the spring rod does not move any more, the leg opening (the finger pushing arm and/or the well diameter arm) is opened to the maximum at the moment, the screw rod continues to move at the moment, the moving displacement is used for compressing the spring for energy storage, the upper side travel nut is contacted with the microswitch when the pushing force of the spring is reached, the motor is powered off and stops running, and the leg opening and spring energy storage process is completed.
During testing, after the legs are opened, the pushing arm and the well diameter wall are completely opened, the wear-resisting head on the small polar plate is attached to the well wall, the instrument is lifted up through a cable, the pushing arm and the well diameter wall are continuously opened or contracted according to the size of the well shaft, the spring rod is pulled to perform telescopic motion through the connecting rod, the spring is installed at the pull rod of the potentiometer, the top end of the potentiometer always abuts against the end face of the big cap screw at the end part of the spring rod, different resistance values are output by the telescopic motion of the potentiometer, and the diameter of the well shaft is measured through line processing.
When the legs are retracted, the motor positive rotation screw rod moves upwards to pull the spring rod and the connecting rod, so that the pushing arm and the well diameter arm are driven to be folded in until the pushing arm and the well diameter arm are in place, the upper side micro switch jumps back to zero, and the leg retraction is finished.
It should be noted that, in the structure, except for special description, the connection relationship among the components may be screw connection, shaft connection, etc., and sealing structures, such as sealing rings, sealing gaskets, etc., are correspondingly arranged among the components; the above structure is the same as that in the prior art, so it is omitted here and will not be described again.
The utility model discloses the advantage of structure is:
1. the instrument has small outer diameter, short length and light weight, and can meet the construction requirement of slim holes;
2. the four hole diameter potentiometers can move independently, and can measure the average hole diameter and double hole diameters;
3. a double microelectrode polar plate can be arranged;
4. the motor is arranged at the upper end, the balance piston (capsule) is arranged at the lower end, the length of the instrument is greatly shortened, and meanwhile, the maintenance is convenient to repair, disassemble and maintain. The prior piston assembly structure is arranged together with a potentiometer assembly, the assembly links are more, the length of an instrument is lengthened, the internal space is small, and a balancing device needs to be disassembled when a rubber ring is replaced and the potentiometer is maintained each time;
5. the inside of the instrument is filled with oil, and through wires can be distributed, in the prior similar instrument, a motor is arranged at the lower end, the motor rotates to move a center rod through a screw rod to control the folding and unfolding of legs, so that the through wires cannot be installed;
6. open leg atress structure, spring assembly can be under motor and push away the effect of receipts system, and the spring is in natural state when guaranteeing that the measuring arm receives the leg, and the measuring arm spring atress when opening the leg to the measuring arm is big more, and its spring force is big more, guarantees that the measuring arm is good with the wall of a well contact, increases the fatigue strength of spring under non-operating condition. The problem that in the existing structure, when a spring system works, a spring is compressed to the maximum when a leg is folded, namely, the larger the borehole diameter leg is unfolded, the smaller the elastic force is solved; and when the conventional parking instrument well diameter leg is a leg-retracting leg, the elastic property of the spring is easily reduced due to the long-term extrusion of the spring;
7. the piston assembly is arranged at the lowest end of the instrument, so that the connecting link and the instrument length are reduced, and the maintenance is easy. The problem of in the existing structure, piston assembly structure is together installed with the potentiometre assembly, and its equipment link is many, causes instrument length extension is avoided.
Claims (2)
1. A high-temperature slim hole bipolar plate sidewall contact device is characterized in that: comprises a shell, a motor, a main shaft and a screw rod;
the motor is fixed on the inner side of the shell, a rotating shaft of the motor is fixedly connected with the main shaft, the lower end of the main shaft is fixedly connected with the nut, a lead screw is connected with the inner thread of the nut, the rear end of the lead screw is connected with a spring rod in a sliding manner, a spring is sleeved on the spring rod, the lower side of the spring rod is matched with the shell in a sliding manner, the lower end of the spring rod is connected with a pushing arm through a connecting rod, the pushing arm, a small polar plate, an auxiliary arm and a small spring rod are sequentially hinged, the small spring rod is connected to the shell in a sliding manner, and a small spring is sleeved on the outer side; the device also comprises a line pipe, one end of the line pipe is communicated with the cavity at the upper part of the shell, the other end of the line pipe is communicated with the lower joint, and a capsule with a capsule plug is arranged in the lower joint;
a potentiometer is arranged at the gap between the nut and the shell, a pull rod of the potentiometer is matched with the end part of the spring rod, a compression spring which enables the pull rod to extend to the end part of the spring rod is arranged on the pull rod of the potentiometer,
a travel nut which is screwed and matched with the main shaft is arranged at the front end of the main shaft, the travel nut is matched with a microswitch, and the microswitch is matched with a motor; the spring rod is provided with a boss, and the shell is also provided with a limit block matched with the boss.
2. The high temperature slim hole bipolar plate sidewall spacer of claim 1, wherein: still include the motor cabinet, the motor cabinet is fixed in the casing inboard, and the stroke nut matches with motor cabinet inner wall sliding connection, and the motor passes through the motor cabinet to be fixed in the casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342620.8U CN210317289U (en) | 2019-08-19 | 2019-08-19 | High-temperature slim-hole bipolar plate sidewall contact device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921342620.8U CN210317289U (en) | 2019-08-19 | 2019-08-19 | High-temperature slim-hole bipolar plate sidewall contact device |
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| CN210317289U true CN210317289U (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931613A (en) * | 2021-09-29 | 2022-01-14 | 中国科学院武汉岩土力学研究所 | Deep-drilling underground pushing positioning centering system and method |
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2019
- 2019-08-19 CN CN201921342620.8U patent/CN210317289U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113931613A (en) * | 2021-09-29 | 2022-01-14 | 中国科学院武汉岩土力学研究所 | Deep-drilling underground pushing positioning centering system and method |
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