CN202197245U - Power and transmission system for electric imaging geolock - Google Patents
Power and transmission system for electric imaging geolock Download PDFInfo
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- CN202197245U CN202197245U CN2011202852173U CN201120285217U CN202197245U CN 202197245 U CN202197245 U CN 202197245U CN 2011202852173 U CN2011202852173 U CN 2011202852173U CN 201120285217 U CN201120285217 U CN 201120285217U CN 202197245 U CN202197245 U CN 202197245U
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Abstract
The utility model discloses a power and transmission system for an electric imaging geolock, and overcomes the deficiency that a power and transmission device of the electric imaging geolock in the prior art does not have a self-locking function. The power and transmission system comprises: a multifunctional switch; a direct current motor comprising a permanent magnet rotor and an excitation stator, wherein the permanent magnet rotor can rotate under the control of a data processing and control device, the excitation stator can generate a constant magnetic field under the control of the data processing and control device, and can interact with the permanent magnet rotor to form a self-locking torque according to the constant magnetic field; a rotary transformer, which is used for detecting an angular displacement of the permanent magnet rotor when the direct current motor works; and the data processing and control device, which can drive the permanent magnet rotor to rotate according to the angular displacement of the permanent magnet rotor when the multifunctional switch is in a starting gear, and can control the excitation stator of the direct current motor to generate the constant magnetic field according to the angular displacement of the permanent magnet rotor when the multifunctional switch is in a stop and self-locking gear. The power and transmission system of the utility model has a simple and compact structure, and can realize the self-locking function of the motor without using a backstop.
Description
Technical field
The utility model relates to the telescoping ram in the electric imaging logging instrument, relates in particular to a kind of electricity imaging telescoping ram power and drive system.
Background technology
Telescoping ram in the electric imaging logging instrument provides power by motor.The concrete path of transmission of power is; Motor-decelerator-limiter of moment-two-way holdback-ball screw assembly; Feed screw nut is done rectilinear motion and is driven thrust collar, and thrust collar promotes six independent springs, and six independent springs promote six push rods respectively; Push rod promotes the crank of parallelogram lindage, and the measuring probe of instrument is installed on the connecting rod of four-bar mechanism.Open in the process at linkage, motor provides power, motor outage when opening up into the precalculated position, and this moment, load on spring provided reverse power.
The matching used motor of telescoping ram itself does not have auto-lock function at present, and it is to adopt the mode of holdback to realize self-locking.But adopt holdback to realize the motor self-locking, complex structure, and also reliability and positioning accuracy are also relatively poor, are necessary to improve.
The utility model content
The utility model technical problem to be solved is that the power and the transmission device that overcome electricity imaging telescoping ram in the prior art do not have the deficiency of auto-lock function.
In order to solve the problems of the technologies described above, the utility model provides a kind of electricity imaging telescoping ram power and drive system, comprises multifunction switch (110), direct current machine (120), resolver (130) and data processing and control device (140), wherein:
Said multifunction switch (110) has the gear of startup and stops and the self-locking gear access direct current;
Said direct current machine (120); Comprise p-m rotor and excitation stator; Said p-m rotor is rotated under the control of said data processing and control device (140); Said excitation stator produces the stationary magnetic field under the control of said data processing and control device (140), and forms self-locking torque according to said stationary magnetic field and said p-m rotor effect;
Said resolver (130) detects the angular displacement of said p-m rotor when said direct current machine (120) is worked;
Said data processing and control device (140) when said multifunction switch (110) is in said startup gear, drive said p-m rotor rotation according to the angular displacement of said p-m rotor; Be in said stop and during the self-locking gear, the excitation stator of controlling said direct current machine (120) according to the angular displacement of said p-m rotor produces said stationary magnetic field at said multifunction switch (110).
Preferably, this system further comprises:
DC power supply links to each other with said multifunction switch (110), and said direct current is provided.
Preferably, said data processing and control device (140) comprise identification module (141), computing module (142) and drive control module (143), wherein:
Said identification module (141) is discerned said multifunction switch (110) and is in said startup gear or said stopping and the self-locking gear;
Said computing module (142) when said multifunction switch (110) is in said startup gear, calculates the excitation phase sequence of coil on the said excitation stator according to the angular displacement of said p-m rotor; Be at said multifunction switch (110) and saidly stop and during the self-locking gear, calculate the angular speed of said p-m rotor according to the angular displacement of said p-m rotor;
Said drive control module (143) drives said p-m rotor rotation according to said excitation phase sequence; The angular speed of said p-m rotor be said p-m rotor be provided with in advance angular speed the time, produce corresponding constant exciting current, said constant exciting current is acted on produces said stationary magnetic field on the said excitation stator.
Compared with prior art, the example structure compact of the utility model, positioning accuracy height, safe and reliable to operation do not need holdback can realize the auto-lock function of motor.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation of middle data processing embodiment illustrated in fig. 1 and control device.
Embodiment
Below will combine accompanying drawing and embodiment to specify the execution mode of the utility model, how the application technology means solve technical problem to the utility model whereby, and the implementation procedure of reaching technique effect can make much of and implement according to this.Mutually combining of each characteristic among the utility model embodiment and the embodiment is all within the protection range of the utility model.
Fig. 1 is the structural representation of the utility model embodiment.As shown in Figure 1, the power of present embodiment and drive system mainly comprise multifunction switch 110, direct current machine 120, resolver 130 and data processing and control device 140, wherein:
Multifunction switch 110 links to each other with data processing and control device 140, has the gear of startup, stops gear and stops and the self-locking gear direct current that access high temperature DC power supply is provided;
Direct current machine 120 links to each other with data processing and control device 140, comprises p-m rotor and excitation stator; Wherein p-m rotor is rotated under the control of this data processing and control device 140; The excitation stator produces the stationary magnetic field under the control of this data processing and control device 140; And according to this stationary magnetic field; Form self-locking torque in certain position and p-m rotor effect, reach direct current machine 120 self-locking purposes;
Resolver 130 links to each other with data processing and control device 140, when direct current machine 120 work, detects the angular displacement of p-m rotor and sends to data processing and control device 140;
Data processing and control device 140; Link to each other with multifunction switch 110, direct current machine 120 and resolver 130; When multifunction switch 110 is in the startup gear; P-m rotor according in the angular displacement driving direct current machine 120 of resolver 130 detected p-m rotors is rotated, and produces power and offers telescoping ram; Be at multifunction switch 110 and stop and during the self-locking gear, produce this stationary magnetic field according to the excitation stator of the angular displacement control direct current machine 120 of resolver 130 detected p-m rotors.
Fig. 2 is the structural representation of middle data processing embodiment illustrated in fig. 1 and control device 140.As shown in Figure 2, the data processing of present embodiment and control device 140 specifically comprise identification module 141, computing module 142 and drive control module 143, wherein:
Identification module 141 links to each other with multifunction switch 110, and identification multifunction switch 110 is in and starts gear or stop also self-locking gear;
Computing module 142 links to each other with identification module 141 and resolver 130; Identify multifunction switch 110 at identification module 141 and be in when starting gear, calculate in the direct current machine 120 on the excitation stator excitation phase sequence of coil and send to drive control module 143 according to the angular displacement of resolver 130 detected p-m rotors; Identify multifunction switch 110 at identification module 141 and be in and stop and during the self-locking gear, calculate the angular speed of p-m rotor and send to drive control module 143 according to the angular displacement of resolver 130 detected p-m rotors;
Drive control module 143, with linking to each other in computing module 142 and the direct current machine 120, work is carried out in the p-m rotor rotation that the excitation phase sequence of sending according to computing module 142 drives in the direct current machine 120, for telescoping ram provides power; Receive the angular speed of the p-m rotor of computing module 142 transmissions; When this angular speed is in the angular speed that is provided with in advance for the p-m rotor in the direct current machine 120; Produce and the corresponding constant exciting current of this angular speed that is provided with in advance, the exciting current that this is constant acts on the excitation stator of direct current machine 120 and produces this stationary magnetic field.
Though the execution mode that the utility model disclosed as above, the execution mode that described content just adopts for the ease of understanding the utility model is not in order to limit the utility model.Technical staff under any the utility model in the technical field; Under the prerequisite of spirit that does not break away from the utility model and disclosed and scope; Can do any modification and variation what implement in form and on the details; But the scope of patent protection of the utility model still must be as the criterion with the scope that appending claims was defined.
Claims (3)
1. an electric telescoping ram power and the drive system of forming images is characterized in that, comprises multifunction switch (110), direct current machine (120), resolver (130) and data processing and control device (140), wherein:
Said multifunction switch (110) has the gear of startup and stops and the self-locking gear access direct current;
Said direct current machine (120); Comprise p-m rotor and excitation stator; Said p-m rotor is rotated under the control of said data processing and control device (140); Said excitation stator produces the stationary magnetic field under the control of said data processing and control device (140), and forms self-locking torque according to said stationary magnetic field and said p-m rotor effect;
Said resolver (130) detects the angular displacement of said p-m rotor when said direct current machine (120) is worked;
Said data processing and control device (140) when said multifunction switch (110) is in said startup gear, drive said p-m rotor rotation according to the angular displacement of said p-m rotor; Be in said stop and during the self-locking gear, the excitation stator of controlling said direct current machine (120) according to the angular displacement of said p-m rotor produces said stationary magnetic field at said multifunction switch (110).
2. electricity imaging telescoping ram power according to claim 1 and drive system is characterized in that this system further comprises:
DC power supply links to each other with said multifunction switch (110), and said direct current is provided.
3. electricity imaging telescoping ram power according to claim 1 and 2 and drive system is characterized in that said data processing and control device (140) comprise identification module (141), computing module (142) and drive control module (143), wherein:
Said identification module (141) is discerned said multifunction switch (110) and is in said startup gear or said stopping and the self-locking gear;
Said computing module (142) when said multifunction switch (110) is in said startup gear, calculates the excitation phase sequence of coil on the said excitation stator according to the angular displacement of said p-m rotor; Be at said multifunction switch (110) and saidly stop and during the self-locking gear, calculate the angular speed of said p-m rotor according to the angular displacement of said p-m rotor;
Said drive control module (143) drives said p-m rotor rotation according to said excitation phase sequence; The angular speed of said p-m rotor be said p-m rotor be provided with in advance angular speed the time, produce corresponding constant exciting current, said constant exciting current is acted on produces said stationary magnetic field on the said excitation stator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202852173U CN202197245U (en) | 2011-08-08 | 2011-08-08 | Power and transmission system for electric imaging geolock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202852173U CN202197245U (en) | 2011-08-08 | 2011-08-08 | Power and transmission system for electric imaging geolock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202197245U true CN202197245U (en) | 2012-04-18 |
Family
ID=45952144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202852173U Expired - Lifetime CN202197245U (en) | 2011-08-08 | 2011-08-08 | Power and transmission system for electric imaging geolock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202197245U (en) |
-
2011
- 2011-08-08 CN CN2011202852173U patent/CN202197245U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: China Oilfield Services Limited Patentee after: China Offshore Oil Group Co., Ltd. Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee before: China Oilfield Services Limited Patentee before: China National Offshore Oil Corporation |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |