CN201778813U - Power-off arm withdrawal device of sidewall contact device in electric imaging logging instrument - Google Patents
Power-off arm withdrawal device of sidewall contact device in electric imaging logging instrument Download PDFInfo
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- CN201778813U CN201778813U CN2010205413120U CN201020541312U CN201778813U CN 201778813 U CN201778813 U CN 201778813U CN 2010205413120 U CN2010205413120 U CN 2010205413120U CN 201020541312 U CN201020541312 U CN 201020541312U CN 201778813 U CN201778813 U CN 201778813U
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- driven shaft
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- drive shaft
- driving shaft
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Abstract
The utility model provides a power-off arm withdrawal device of a sidewall contact device in an electric imaging logging instrument, which adopts the structure that a motor is connected at one end of a drive shaft, and a driven shaft is detachably connected at the other end of the drive shaft; the drive shaft is detachably connected at one end of the driven shaft via an electromagnetic structure, and a lead screw for transmitting power is connected at the other end of the driven shaft; the electromagnetic structure comprises a pair of electromagnets respectively arranged on the drive shaft and the driven shaft, and can mutually attract in a power-on state; and a separating spring is arranged between the drive shaft and the driven shaft, and can generate separating force between the drive shaft and the driven shaft. By arranging the drive shaft, the driven shaft and the separating spring on the device provided by the utility model, the drive shaft and the driven shaft can mutually attract via the electromagnetic structure to transmit the motor power in a power-on state; and the drive shaft and the driven shaft are separated via the separating spring in a power-off state, so as to enable the lead screw to be in a free state in a circumferential direction. Therefore, the expanded arm can be automatically withdrawn via the external resistance and the dead weight, so as to avoid huge economic loss resulted from the damage of rigid collision to polar plates.
Description
Technical field
The utility model relates to a kind of electric imaging logging instrument telescoping ram outage and receives arm assembly.
Background technology
At present, the electric imaging logging instrument can't be received arm, state in the time of can only keeping switching on when outage.When producing the fault outage, in the time of logging instrument need being pulled out well, can only adopt the mode of hard draw, damage pole plate through regular meeting.Because the pole plate cost is very high, the loss that causes of primary fault is very huge like this.
The utility model content
The technical problems to be solved in the utility model provides a kind of electric imaging logging instrument telescoping ram outage of avoiding damaging pole plate that can receive arm when outage and receives arm assembly.
In order to address the above problem, the utility model provides a kind of electric imaging logging instrument telescoping ram outage to receive arm assembly, comprising:
Driving shaft, described driving shaft one end connects motor, and the other end can deciliter connection driven shaft by electromagnetic structure;
Driven shaft, described driven shaft one end can deciliter connect described driving shaft by electromagnetic structure, and the other end connects the leading screw of transferring power;
Electromagnetic structure, described electromagnetic structure comprise be separately positioned on described driving shaft and the driven shaft can mutual adhesive when energising a pair of electromagnet;
Cut spring, described cut spring is arranged between described driving shaft and the driven shaft, and produces between described driving shaft and driven shaft and separate tearaway load.
Further, be connected with two-way holdback between described driving shaft and the described motor.
Further, be connected by key between described driven shaft and the described leading screw, described driven shaft is provided with the long keyway that matches with described key that allows described leading screw and the axial relative motion of described driven shaft.
Further, also be provided with thrust bearing between described driven shaft and the described cut spring.
The utlity model has following advantage:
1, the utility model is provided with driving shaft, driven shaft, electromagnetic structure and cut spring, driving shaft and driven shaft are by the electromagnetic structure adhesive during energising, transmit motor power, disconnect connection by cut spring during outage, make leading screw circumferentially be in free state, open arm and can receive arm voluntarily, avoid hard collision by extraneous resistance and deadweight, damage pole plate, produce the tremendous economic loss.
2, the utility model is simple in structure, control action is reliable and safe, and the utility model is with low cost, is easy to promote the use of.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Fig. 1 shows the outage of a kind of electric imaging logging instrument of the utility model telescoping ram and receives the arm assembly structural representation.
The specific embodiment
As shown in Figure 1, the utility model comprises driving shaft 1, driven shaft 2, electromagnetic structure 3 and cut spring 4.Driving shaft 1 is connected motor 5 and leading screw 6 respectively with driven shaft 2, is used for transmitting and disconnecting motor 5 and leading screw 6 power; Electromagnetic structure 3 and cut spring 4 are respectively applied for and are connected and disconnect being connected of driving shaft 1 and driven shaft 2.
Cut spring 4 is arranged between driving shaft 1 and the driven shaft 2, and produces between driving shaft 1 and driven shaft 2 and separate tearaway load.This cut spring 4 can be set to compress spring, also can be set to extension spring, determines according to actual needs.This cut spring 4 need have enough spring forces, driving shaft 1 and driven shaft 2 thoroughly can be thrown off when cutting off the power supply.
The utility model is provided with driving shaft 1, driven shaft 2, electromagnetic structure 3 and cut spring 4, driving shaft 1 passes through electromagnetic structure 3 adhesives with driven shaft 2 during energising, transmit motor 5 power, disconnect connection by cut spring 4 during outage, make leading screw 6 circumferentially be in free state, open arm and can receive arm voluntarily, avoid hard collision by extraneous resistance and deadweight, damage pole plate, produce the tremendous economic loss.
In the utility model, be connected with two-way holdback 8 between driving shaft 1 and the motor 5.This two-way holdback 8 can prevent the moment back transfer, thereby damages motor 5.
In the utility model, be connected by key 9 between driven shaft 2 and the leading screw 6, driven shaft 2 is provided with the long keyway 10 that matches with key 9 that allows leading screw 6 and driven shaft 2 axial relative motions.This key 9 can endwisely slip along driven shaft 2 in long keyway 10, and leading screw 6 is rotatablely moved passes to driven shaft 2 simultaneously, drives driven shaft 2 rotations.This driven shaft 2 is only followed leading screw 6 rotations, can not drive the driving shaft rotation.
In the utility model, also be provided with thrust bearing 11 between driven shaft 2 and the cut spring 4.When rotating freely driven shaft 2, separates this thrust bearing 11 not friction of spring 4.
Below the utility model course of action is elaborated:
Stretch one's arms:
Motor 5 connects the two-way holdback 8 of drive by key transmission of power is arrived driving shaft 1, combining form when driving shaft 2 is energising with driven shaft 2, during motor 5 energisings, electromagnetic structure 3 is energising simultaneously also, driven shaft 2 moves under the suction of electromagnetic structure, engages with driving shaft 1; Driving shaft 1 is given driven shaft 2 with transmission of power, and then passes to leading screw 6.Leading screw 6 rotates, and changes axially-movable into by nut and transmit, and promotes to stretch one's arms structure, drives the pole plate opening and closing.
Stop (duty of promptly logging well usually) after stretching one's arms:
Receive arm:
Change motor 5 senses of current, motor 5 reverse rotations keep electromagnetic structure 3 power supplies simultaneously, also promptly keep driving shaft 1 to combine transferring power with driven shaft 2.
During the fault outage:
Break down the down-hole can not power the time in electric power system, can't backup arm be regained by motor 5; At this moment, electromagnetic structure 3 also is in off-position, and driven shaft 2 separates with driving shaft 1 under cut spring 4 effects; Because leading screw 6 can not self-locking, pole plate drives leading screw 6 and rotates under borehole wall thrust and pole plate action of gravity, makes the backup arm automatic drawing back, avoids it to carry on the down-hole and meets card or excessive wear pole plate in the process.
The utility model is simple in structure, control action is reliable and safe, and the utility model is with low cost, is easy to promote the use of.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection domain of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. arm assembly is received in an electric imaging logging instrument telescoping ram outage, it is characterized in that, comprising:
Driving shaft (1), described driving shaft (1) one end connects motor (5), and the other end can deciliter connection driven shaft (2) by electromagnetic structure (3);
Driven shaft (2), described driven shaft (2) one ends can deciliter connect described driving shaft (1) by electromagnetic structure (3), and the other end connects the leading screw (6) of transferring power;
Electromagnetic structure (3), described electromagnetic structure (3) comprise be separately positioned on described driving shaft (1) and driven shaft (2) go up can mutual adhesive when switching on a pair of electromagnet (7);
Cut spring (4), described cut spring (4) are arranged between described driving shaft (1) and the driven shaft (2), and produce between described driving shaft (1) and driven shaft (2) and separate tearaway load.
2. arm assembly is received in electric imaging logging instrument telescoping ram outage as claimed in claim 1, it is characterized in that: be connected with two-way holdback (8) between described driving shaft (1) and the described motor (5).
3. arm assembly is received in electric imaging logging instrument telescoping ram outage as claimed in claim 1, it is characterized in that: be connected by key (9) between described driven shaft (2) and the described leading screw (6), described driven shaft (2) is provided with and allows the axially long keyway (10) that matches with described key (9) of relative motion of described leading screw (6) and described driven shaft (2).
4. arm assembly is received in electric imaging logging instrument telescoping ram outage as claimed in claim 1, it is characterized in that: also be provided with thrust bearing (11) between described driven shaft (2) and the described cut spring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413120U CN201778813U (en) | 2010-09-25 | 2010-09-25 | Power-off arm withdrawal device of sidewall contact device in electric imaging logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205413120U CN201778813U (en) | 2010-09-25 | 2010-09-25 | Power-off arm withdrawal device of sidewall contact device in electric imaging logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201778813U true CN201778813U (en) | 2011-03-30 |
Family
ID=43792026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205413120U Expired - Fee Related CN201778813U (en) | 2010-09-25 | 2010-09-25 | Power-off arm withdrawal device of sidewall contact device in electric imaging logging instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201778813U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744641A (en) * | 2012-07-03 | 2012-10-24 | 西安瑞特快速制造工程研究有限公司 | Ballscrew nut mounting structure |
| CN106741206A (en) * | 2016-12-30 | 2017-05-31 | 韩圳（深圳）科技有限公司 | It is a kind of can manual and electric switching strut preparation method and strut |
| CN109779550A (en) * | 2019-03-26 | 2019-05-21 | 西华大学 | A kind of shale gas horizontal well sticking point instrument boosting tool |
-
2010
- 2010-09-25 CN CN2010205413120U patent/CN201778813U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744641A (en) * | 2012-07-03 | 2012-10-24 | 西安瑞特快速制造工程研究有限公司 | Ballscrew nut mounting structure |
| CN106741206A (en) * | 2016-12-30 | 2017-05-31 | 韩圳（深圳）科技有限公司 | It is a kind of can manual and electric switching strut preparation method and strut |
| CN109779550A (en) * | 2019-03-26 | 2019-05-21 | 西华大学 | A kind of shale gas horizontal well sticking point instrument boosting tool |
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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: 20110330 Termination date: 20180925 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |