CN111608581A - Directional sensor for dynamic measurement - Google Patents
Directional sensor for dynamic measurement Download PDFInfo
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- CN111608581A CN111608581A CN202010377360.9A CN202010377360A CN111608581A CN 111608581 A CN111608581 A CN 111608581A CN 202010377360 A CN202010377360 A CN 202010377360A CN 111608581 A CN111608581 A CN 111608581A
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- fluxgate
- cavity
- axis
- circuit board
- groove
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/06—Deflecting the direction of boreholes
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/02—Determining slope or direction
- E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
Abstract
The invention discloses a directional sensor for dynamic measurement, belonging to the technical field of directional sensors, an X-axis accelerometer, a Y-axis accelerometer, a Z-axis accelerometer and a data acquisition circuit board are arranged on the same side of a framework main body, an X-axis fluxgate, a Y-axis fluxgate, a Z-axis fluxgate and a power supply circuit board are arranged on the other side of the framework main body, the installation positions of the circuit board, the power circuit board, the accelerometer, the fluxgate and other components are reasonably arranged, the two sides of the framework main body are symmetrically arranged, the overall length of the directional sensor is reduced, the installation fixing seat is adopted to meet the installation requirement, simultaneously, the space is reasonably utilized, the number of fixed components is reduced, the overall size of the directional sensor is reduced, the special wire guide groove is arranged, the wiring outside the framework is avoided, the installation size of the inclinometer can be reduced, and the lead connection difficulty among components in the directional sensor is reduced.
Description
Technical Field
The invention relates to the technical field of directional sensors, in particular to a directional sensor for dynamic measurement.
Background
The current directional drilling technology is mainly divided into steering motor steering drilling and rotary steering drilling. When the steering motor is applied, the drill string does not rotate and is attached to the bottom of a well in a sliding steering mode, the drill bit only rotates under the driving of a rotor in the motor, and the difficulty in pressurizing the drill bit is often caused in the large-inclination and horizontal drilling process. The step is caused easily when adjusting the well track for the well is not smooth, because the drilling string irrotational, is unfavorable for taking the bits, thereby forms the detritus bed in the shaft bottom, has increased the risk of sticking to the brill, thereby has reduced the efficiency of construction. The rotary steering technology effectively overcomes the difficulties, and when the rotary steering technology is used for drilling, the underground drilling tool is always in a rotary state, so that cuttings are carried well, drilled well tracks are smooth, the operation efficiency is improved, and the rotary steering technology is favorable for operation construction in subsequent stages and reduction of operation risks.
Due to the advantages, the rotary steering drilling technology is widely applied to the construction of special process wells such as horizontal wells with high water-to-vertical ratio and extended reach wells. The directional sensor is used as a core component of measurement while drilling, provides well deviation azimuth and tool surface measurement data for directional drilling, and the three-dimensional position of each point on the well track is determined by the well depth, the well deviation and the azimuth. The directional sensor can realize the measurement of well deviation and orientation through triaxial acceleration degree sensor and triaxial fluxgate sensor, simultaneously through these sensors, can confirm the gesture of instrument in the pit, including gravity toolface and magnetic toolface, and this needs directional sensor can provide accurate angle output when the developments are rotatory.
At present, directional sensors used at home and abroad do not have the function of dynamic directional measurement, and the conditions of complex structure and large overall size generally exist, so that the use and the operation are inconvenient, and a larger installation space is required. As the demand for space utilization increases in oil well drilling technology, higher demands are placed on the size of the directional sensors. Therefore, there is a need to design a directional sensor that has a compact overall size, can satisfy the sensor orthogonality requirement, and can mount internal circuit elements easily and reliably.
Disclosure of Invention
The invention provides an orientation sensor for dynamic measurement, aiming at optimizing the installation mode of sensors in the orientation sensor, reasonably utilizing the space while meeting the installation requirement by optimizing and reasonably distributing the positions of the sensors, reducing the number of fixed parts, reducing the overall size of the orientation sensor, reducing the difficulty of lead connection among components in the orientation sensor and realizing the function of dynamic orientation measurement of the orientation sensor.
The specific technical scheme provided by the invention is as follows:
the invention provides an orientation sensor for dynamic measurement, which comprises a framework, an upper end head and a lower end head which are respectively fixed at two ends of the framework, an upper connector fixed on the upper end head, a lower connector fixed on the lower end head, an X-axis fluxgate, a Y-axis fluxgate and a Z-axis fluxgate which are fixed on the framework in parallel close to the lower end head, a fluxgate driving circuit board and a data acquisition circuit board which are fixed in the middle of the framework, a power circuit board fixed on the middle upper part of the framework, an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer which are fixed on the upper part of the framework, wherein the framework comprises a framework main body, a pillow block arranged at the left end of the framework main body, first wire passing grooves and fluxgate mounting grooves which are arranged at two sides of the framework main body close to the pillow block, and data acquisition circuit board mounting cavities and, The accelerometer mounting cavity and the power panel cavity are symmetrically arranged at the right end of the framework main body, the first screw through hole is formed in the side wall of the right end of the framework main body, and the first threaded hole is formed in the side wall of the left end of the framework main body; the first line passing groove is located on the same side of the framework main body, the fluxgate mounting groove is located on the fluxgate drive board mounting cavity and the power board cavity is arranged on the same side of the framework main body, the first line passing groove is communicated with the data collection circuit board mounting cavity, a first line passing hole, a second line passing hole and a circuit board mounting fixing seat are arranged at the bottom of the data collection circuit board mounting cavity, the first line passing hole and the second line passing hole are distributed at two ends of the data collection circuit board mounting cavity, the fluxgate drive board mounting groove is communicated with the data collection circuit board mounting cavity through the first line passing hole, and the power board cavity is communicated with the data collection circuit board mounting cavity through the second line passing hole.
Optionally, the accelerometer installation cavity includes X axle accelerometer installation cavity, Y axle accelerometer installation cavity and the Z axle accelerometer installation cavity that mutually perpendicular set up, the Z axle accelerometer installation cavity is close to data acquisition circuit board installation cavity sets up, Y axle accelerometer installation cavity is located the Z axle accelerometer installation cavity with between the X axle accelerometer installation cavity, the Z axle accelerometer installation cavity with it crosses the line groove to be provided with the second between the data acquisition circuit board installation cavity, the Z axle accelerometer installation cavity with adopt the third to cross the line groove intercommunication each other between the Y axle accelerometer installation cavity, the Y axle accelerometer installation cavity with adopt the fourth to cross the line groove intercommunication each other between the X axle accelerometer installation cavity.
Optionally, the data acquisition circuit board is fixed in the data acquisition circuit board installation cavity, the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer are respectively fixed in the X-axis accelerometer installation cavity, the Y-axis accelerometer installation cavity and the Z-axis accelerometer installation cavity by pressing plates, and the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer are respectively connected with the data acquisition circuit board through the fourth wire passing groove, the third wire passing groove and the second wire passing groove.
Optionally, the upper end head includes an upper end head main body, a framework connecting portion arranged at the right end of the upper end head main body, a fifth wire passing groove arranged on the side wall of the framework connecting portion, a recessed table fixed at the left end of the upper end head main body, an upper connector mounting groove arranged on the recessed table, and a third wire passing hole arranged between the upper connector mounting groove and the framework connecting portion, the upper connector mounting groove and the framework connecting portion are mutually communicated through the third wire passing hole, the upper connector mounting groove is used for mounting an upper connector, and the upper connector mounting groove is a counter bore; and the upper connector is electrically connected with the data acquisition circuit board through the fifth wire passing groove and the third wire passing hole.
Optionally, be provided with the second screw hole of taking the chamfer on the plane of concave station, the second screw hole is used for realizing go up end and other parts of directional sensor between be connected fixedly, it is T type structure to go up the connector mounting groove, the bottom of going up the connector mounting groove is provided with the third screw hole, the third screw hole is used for installing fastening screw to realize going up fixed between connector and the upper end, the middle part of going up the end main part is provided with first gyration and dodges the groove, upper end main part right-hand member is provided with first bell mouth, first bell mouth is close to first gyration is dodged the groove and is set up, first bell mouth is used for installing fastening screw and is realized the skeleton with fixed between the upper end.
Optionally, the fluxgate mounting groove includes an X-axis fluxgate cavity, a Y-axis fluxgate cavity and a Z-axis fluxgate cavity arranged side by side, the fluxgate mounting groove is arranged between the pillow block and the fluxgate drive plate mounting cavity, the sixth line passing groove penetrates through the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity and is arranged on the skeleton main body, and the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity are communicated with the fluxgate drive plate mounting cavity through the sixth line passing groove.
Optionally, the X-axis fluxgate, the Y-axis fluxgate and the Z-axis fluxgate are respectively fixed in the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity by fluxgate seats, and the X-axis fluxgate, the Y-axis fluxgate and the Z-axis fluxgate are electrically connected to the fluxgate drive board through a lead wire arranged in the sixth wire passing groove.
Optionally, a drive plate fixing seat and a transformer accommodating cavity are arranged at the bottom of the fluxgate drive plate installation cavity, wherein the lower surface of the drive plate fixing seat is higher than the bottom of the fluxgate drive plate installation cavity, a fourth wire passing hole is formed in a right end side wall of the fluxgate drive plate installation cavity, and the fluxgate drive plate installation cavity and the power panel cavity are communicated with each other through the fourth wire passing hole; a power panel fixing seat is arranged in the power panel cavity, wherein the lower surface of the power panel fixing seat is higher than the bottom of the power panel cavity; the first threaded hole is formed in the pillow block.
Optionally, the fluxgate drive plate is fixed in the fluxgate drive plate installation cavity, the lower surface of the fluxgate drive plate abuts against the drive plate fixing seat, the power circuit board is fixed in the power board cavity, the lower surface of the power circuit board abuts against the power board fixing seat, a transformer coil is fixedly installed in the transformer accommodating cavity by using a transformer cover plate, and the transformer cover plate is fixed at the bottom of the transformer accommodating cavity by using screws.
Optionally, lower end head includes lower end main part, sets up the skeleton installation cavity, the setting of end main part right-hand member are in down the inside fifth wire hole of crossing of skeleton installation cavity, setting are in the lower connector mounting groove, the setting of end main part left end are in down the sixth wire hole of connector installation tank bottom portion, the fifth wire hole of crossing with the sixth wire hole intercommunication of crossing, the lower connector mounting groove with adopt between the skeleton installation cavity the fifth wire hole of crossing with the sixth wire hole intercommunication of crossing.
The invention has the following beneficial effects:
the embodiment of the invention provides an orientation sensor for dynamic measurement, wherein an X-axis accelerometer, a Y-axis accelerometer, a Z-axis accelerometer and a data acquisition circuit board are arranged on the same side of a framework main body, an X-axis fluxgate, a Y-axis fluxgate, a Z-axis fluxgate and a power supply circuit board are arranged on the other side of the framework main body, symmetrical arrangement on two sides of the framework main body is realized through reasonable arrangement of the installation positions of the circuit board, the power supply circuit board, the accelerometer, the fluxgate and other components, the overall length of the orientation sensor is reduced, the installation fixing seat is adopted to reasonably utilize space while meeting the installation requirement, the number of fixed components is reduced, the overall size of the orientation sensor is reduced, a first wire passing hole, a second wire passing hole and a circuit board installation fixing seat are arranged at the bottom of a data acquisition circuit board installation cavity, a fluxgate, the power supply circuit board is electrically connected with the data acquisition circuit board through the second wire passing hole, and a special wire guide groove is also arranged, so that the wiring outside the framework is avoided, the installation size of the directional sensor can be reduced, and the lead connection difficulty among components in the directional sensor is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is an isometric view of an orientation sensor for dynamic measurements according to an embodiment of the present invention;
FIG. 2 is another isometric view of an orientation sensor for dynamic measurements according to an embodiment of the present invention;
fig. 3 is a schematic front view of an orientation sensor for dynamic measurement according to an embodiment of the present invention;
FIG. 4 is a schematic side view of an orientation sensor for dynamic measurement according to an embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view taken along line A-A of FIG. 3 according to an embodiment of the present invention;
FIG. 6 is an isometric view of a frame according to an embodiment of the invention;
FIG. 7 is another isometric view of a frame according to an embodiment of the invention;
FIG. 8 is an isometric view of an upper head according to an embodiment of the present invention;
FIG. 9 is another isometric view of an upper head according to an embodiment of the present invention;
FIG. 10 is an isometric view of a lower header according to an embodiment of the present invention;
FIG. 11 is another isometric view of a lower header in accordance with an embodiment of the present invention;
FIG. 12 is an isometric view of a platen according to an embodiment of the present invention;
FIG. 13 is a schematic diagram of an accelerometer, according to an embodiment of the invention;
FIG. 14 is a schematic view of a fluxgate holder according to an embodiment of the present invention;
fig. 15 is a schematic structural diagram of a transformer bushing according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An orientation sensor for dynamic measurement according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 15.
Referring to fig. 1, 2, 3 and 4, an orientation sensor for dynamic measurement according to an embodiment of the present invention includes a frame 1, an upper end 2 and a lower end 3 respectively fixed to two ends of the frame 1, an upper connector 4 fixed to the upper end 2, a lower connector 5 fixed to the lower end 3, an X-axis fluxgate 6, a Y-axis fluxgate 7 and a Z-axis fluxgate 8 fixed to the frame 1 in parallel near the lower end 3, a fluxgate driving circuit board 9 and a data collecting circuit board 10 fixed to a middle portion of the frame 1, a power circuit board 11 fixed to a middle upper portion of the frame 1, an X-axis accelerometer 12, a Y-axis accelerometer 13 and a Z-axis accelerometer 14 fixed to an upper portion of the frame 1.
Referring to subject 1, fig. 2, fig. 6 and fig. 7, the framework 1 includes a framework main body 101, a pillow block 102 disposed at the left end of the framework main body 101, a first wire passing groove 103 and a fluxgate installation groove 104 disposed at two sides of the framework main body 101 near the pillow block 102, a data acquisition circuit board installation cavity 105 and a fluxgate drive board installation cavity 106 symmetrically disposed at two sides of the framework main body 101, an accelerometer installation cavity 107 and a power board cavity 108 symmetrically disposed at the right end of the framework main body 101, a first screw through hole 109 disposed at the right end side wall of the framework main body 101, and a first screw hole 1010 disposed at the left end side wall of the framework main body 101; wherein, the first wire passing groove 103, the data acquisition circuit board installation cavity 105 is located on the same side of the framework main body 101, the fluxgate installation groove 104, the fluxgate drive board installation cavity 106 and the power panel cavity 108 are arranged on the same side of the framework main body 101, that is, the first wire passing groove 103, the data acquisition circuit board installation cavity 105 is opposite to the fluxgate installation groove 104, the fluxgate drive board installation cavity 106 and the power panel cavity 108 are arranged on the other side of the framework main body, and further through the layout arrangement, through the reasonable layout of the circuit boards, the installation positions of the power circuit boards and the fluxgate components, the bilateral symmetry layout arrangement on the framework main body is realized, the overall length of the directional sensor is reduced, the installation fixing seat is adopted to reasonably utilize the space while meeting the installation requirements, the number of the fixing components.
Referring to fig. 1, 5 and 6, the first wire passing groove 103 is communicated with the data collecting circuit board mounting cavity 105, the bottom of the data collecting circuit board mounting cavity 105 is provided with a first wire passing hole 1051, a second wire passing hole 1052 and a circuit board mounting fixing seat 1053, the first wire passing hole 1051 and the second wire passing hole 1052 are distributed at two ends of the data collecting circuit board mounting cavity 105, the fluxgate mounting groove 104 is communicated with the data collecting circuit board mounting cavity 105 through the first wire passing hole 1051, the power board cavity 108 is communicated with the data collecting circuit board mounting cavity 105 through the second wire passing hole 1052, so that the electrical connection among the power board, the data collecting circuit board, the fluxgate and the fluxgate driving board can be realized by wire passing in the first wire passing hole 1051 and the second wire passing hole 1052, by providing a dedicated wire guide groove, the wire passing outside the frame is avoided, the mounting size of the directional sensor can be reduced, and the lead connection difficulty among components in the directional sensor is reduced.
Referring to fig. 1 and 7, accelerometer mounting cavity 107 of the present embodiment includes an X-axis accelerometer mounting cavity 1071, a Y-axis accelerometer mounting cavity 1072, and a Z-axis accelerometer mounting cavity 1073 disposed perpendicular to each other, where Z-axis accelerometer mounting cavity 1073 is disposed adjacent to data acquisition circuit board mounting cavity 105, and Y-axis accelerometer mounting cavity 1072 is disposed between Z-axis accelerometer mounting cavity 1073 and X-axis accelerometer mounting cavity 1071. Wherein, X-axis accelerometer installation cavity 1071 is used for installing X-axis accelerometer, Y-axis accelerometer installation cavity 1072 is used for installing Y-axis accelerometer and Z-axis accelerometer installation cavity 1073 are used for installing Z-axis accelerometer to X-axis accelerometer, Y-axis accelerometer and Z-axis accelerometer mutually perpendicular after the installation.
Referring to fig. 6 and 7, a second wire passing groove 1011 is formed between the Z-axis accelerometer mounting cavity 1073 and the data acquisition circuit board mounting cavity 105, the Z-axis accelerometer mounting cavity 1073 and the Y-axis accelerometer mounting cavity 1072 are communicated with each other through a third wire passing groove 1012, and the Y-axis accelerometer mounting cavity 1072 and the X-axis accelerometer mounting cavity 1071 are communicated with each other through a fourth wire passing groove 1013. That is, after the X-axis accelerometer, the Y-axis accelerometer and the Z-axis accelerometer are installed, the leads are arranged through the second wire passing groove 1011, the third wire passing groove 1012 and the fourth wire passing groove 1013 to realize the mutual electric connection with the data acquisition circuit board.
Referring to fig. 1, 4, 6 and 7, the data acquisition circuit board 10 is fixed in the data acquisition circuit board mounting cavity 105, the X-axis accelerometer 12, the Y-axis accelerometer 13 and the Z-axis accelerometer 14 are respectively fixed in the X-axis accelerometer mounting cavity 1071, the Y-axis accelerometer mounting cavity 1072 and the Z-axis accelerometer mounting cavity 1073 by the pressing plate 15, and the X-axis accelerometer 12, the Y-axis accelerometer 13 and the Z-axis accelerometer 14 are respectively electrically connected with the data acquisition circuit board 10 through the fourth wire through groove 1013, the third wire through groove 1012 and the second wire through groove 1011. The lower surface of the data acquisition circuit board 10 abuts against the circuit board mounting fixing seat 1053, so that the data acquisition circuit board 10 can be fixed on the circuit board mounting fixing seat 1053 through screw connection, and the data acquisition circuit board 10 can also be fixed on the circuit board mounting fixing seat 1053 in a bonding mode. Referring to fig. 13, the X-axis accelerometer 12, the Y-axis accelerometer 13, and the Z-axis accelerometer 14 employed in the embodiment of the present invention are MEMS accelerometers.
Referring to fig. 5 and 12, the pressure plate 15 according to the embodiment of the present invention includes an arc-shaped main body 1501, a screw hole 1502 disposed on an upper surface of the arc-shaped main body 1501, and an accelerometer pressing table 1503 disposed on a lower surface of the arc-shaped main body 1501, wherein the lower surface of the arc-shaped main body 1501 and the accelerometer pressing table 1503 cooperate with each other to form an inverted L-shaped accommodating cavity 1504, and the inverted L-shaped accommodating cavity 1504 cooperates with a side surface of the accelerometer to fix the accelerometer to the frame, that is, the inverted L-shaped accommodating cavity 1504 cooperates with the side surface of the accelerometer to fix the X-axis accelerometer 12, the Y-axis accelerometer 13, and the Z-axis accelerometer 14 to the frame 1. Because the perfect butt of side and the top surface that the type of falling L holding chamber can with the accelerometer, realized that the butt between accelerometer and the skeleton is fixed, and then improve the fixed reliability between accelerometer and the skeleton, avoid influencing directional sensor's measurement accuracy because of the fixed unreliable of accelerometer.
Referring to fig. 5 and 12, a tapered guide hole is formed in the upper portion of the screw hole 1502, the tapered guide hole is concentrically arranged with the screw hole 1502 and is communicated with the screw hole 2, wherein the tapered guide hole and the screw hole 1502 are in smooth transition, and the tapered guide hole is formed, so that the difficulty of installing a screw in the tapered hole 1502 is reduced, and the screw hole 1502 are conveniently centered. The screw hole 1502 is a through hole and the screw hole 1502 penetrates through the arc-shaped main body 1501 and the accelerometer pressing table 1503, so that the pressing plate 15 and the framework 1 can be reliably fixed by screws. The inboard surface and the outside surface of arc main part 1501 are the arc surface, the inboard surface and the outside surface that the platform 1503 was pressed to the accelerometer are the arc surface, the outside surface of arc main part 1501 and the outside surface that the platform 1503 was pressed to the accelerometer are on same arc surface, and then can guarantee that the outside surface of arc main part 1501 and the equal reliable butt laminating of the outside surface that the platform 1503 was pressed to the accelerometer are on the lateral wall of the accelerometer installation cavity that sets up on skeleton 1, the inboard surface of arc main part 1501 and the inboard surface that the platform 1503 was pressed to the accelerometer all set up to the arc surface can guarantee the perfect laminating between its and the accelerometer.
Referring to fig. 1, 5, 8 and 9, the upper head 2 according to the embodiment of the present invention includes an upper head main body 201, a frame connecting portion 202 disposed at a right end of the upper head main body 201, a fifth wire passing groove 203 disposed on a side wall of the frame connecting portion 202, a recessed table 204 fixed at a left end of the upper head main body 201, an upper connector mounting groove 205 disposed on the recessed table 204, and a third wire passing hole 206 disposed between the upper connector mounting groove 205 and the frame connecting portion 202, where the connector mounting groove 5 and the frame connecting portion 202 are communicated with each other through the third wire passing hole 206, that is, the third wire passing hole 206 is used for communicating the upper connector mounting groove 205 and the frame connecting portion 202, so as to achieve electrical connection between various sensor components mounted on the frame and the upper connector. The upper connector mounting groove 205 is used for mounting the upper connector 4 and the upper connector mounting groove 205 is a counter bore, wherein the upper connector mounting groove 205 and the upper connector 4 are mutually matched to realize reliable fixation between the upper connector and the upper end. Because last skeleton connecting portion and the last connector mounting groove of being provided with of upper end, can realize the connection between skeleton and the last connector, moreover, be provided with in the upper end main part and cross the line hole and cross the line groove, can realize connecting wire between connector and the sensor reasonable distribution and reliably be connected, avoid the skeleton for walking the line improve in the directional sensor between lead wire and the connector reliability of being connected to reduce the connection degree of difficulty between lead wire and the connector in the directional sensor.
Referring to fig. 1, 5, 8 and 9, a second threaded hole 207 with a chamfer is formed in the concave platform 204 arranged on the upper head according to the embodiment of the present invention, and the second threaded hole 207 is used for realizing the connection and fixation between the upper head and other components of the orientation sensor. The second threaded hole 207 is formed in the upper end plane of the concave table 204, so that the connector can be structurally limited after the upper end head is connected with other components of the orientation sensor, and the connector is protected by the cover plate. The last connector mounting groove 205 that sets up on upper head main part 201 is T type structure in order to realize with the cooperation of last connector 4, and the bottom of going up connector mounting groove 205 is provided with third screw hole 208, and third screw hole 208 is used for installing fastening screw and realizes going up the fixed between connector 4 and the upper head 2. Go up the middle part of end main part 201 and be provided with first gyration and dodge groove 209, go up end main part 201 right-hand member and be provided with first bell mouth 210, first bell mouth 210 is close to first gyration and dodges groove 209 setting, and first bell mouth 210 is used for installing fastening screw and realizes the fixed between skeleton 1 and the top 2.
Referring to fig. 1, 5, 6 and 7, the fluxgate installation slot 104 includes an X-axis fluxgate cavity 1041, a Y-axis fluxgate cavity 1042 and a Z-axis fluxgate cavity 1042 arranged side by side, the fluxgate installation slot 104 is arranged between the pillow block 102 and the fluxgate drive board installation cavity 106, a sixth pass line 1014 is arranged on the skeleton body 101 through the X-axis fluxgate cavity 1041, the Y-axis fluxgate cavity 1042 and the Z-axis fluxgate cavity 1043, the X-axis fluxgate cavity 1041, the Y-axis fluxgate cavity 1042 and the Z-axis fluxgate cavity 1043 are communicated with the fluxgate drive board installation cavity 106 through the sixth pass line 1014, and thus the electrical connection between the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate drive board 9 can be realized by arranging a lead line in the sixth pass line 1014, the internal pass line passage is avoided from outside the skeleton, thereby improving the, and the difficulty of lead connection between components in the directional sensor is reduced.
Referring to fig. 1, 5, 6 and 7, the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate 8 are respectively fixed in the X-axis fluxgate cavity 1041, the Y-axis fluxgate cavity 1042 and the Z-axis fluxgate cavity 1043 by using fluxgate seats 16, and the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate 8 are electrically connected to the fluxgate drive plate 9 through a lead wire provided in the sixth wire passing groove 1014. Referring to fig. 1, 5 and 14, a fluxgate seat 16 may be respectively sleeved on the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate 8, and then the fluxgate seat 16 is fixed on the framework main body 101 by using screws, so that the fluxgate and the framework may be fixed by using the dedicated fluxgate seat 16, the difficulty in mounting the fluxgate and the framework may be reduced, and the overall size of the directional sensor may be reduced. After the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate 8 are installed and fixed, the three components are perpendicular to each other, that is, the X-axis fluxgate 6, the Y-axis fluxgate 7 and the Z-axis fluxgate 8 are respectively fixed on the sensor framework along the directions of the XYZ axes.
Referring to fig. 1, 5, 6 and 7, a drive plate fixing seat 1061 and a transformer accommodating cavity 1062 are disposed at the bottom of the fluxgate drive plate installation cavity 106 according to the embodiment of the present invention, wherein a lower surface of the drive plate fixing seat 1061 is higher than the bottom of the fluxgate drive plate installation cavity 106, a fourth wire passing hole 1063 is disposed on a right end side wall of the fluxgate drive plate installation cavity 106, and the fluxgate drive plate installation cavity 106 and the power supply board cavity 108 are communicated with each other through the fourth wire passing hole 1063. After the fluxgate drive plate 9 is installed on the drive plate fixing seat 1061, the fluxgate drive plate may be fixed by screws or by bonding, and since the lower surface of the drive plate fixing seat 1061 is higher than the bottom of the fluxgate drive plate installation cavity 106, the fluxgate drive plate 9 and the fluxgate drive plate installation cavity 106 may be conveniently routed between the bottoms, so as to achieve position avoidance and ensure the reliability of the lead connection of the fluxgate drive plate. A power panel fixing seat 1081 is disposed in the power panel cavity 108, wherein a lower surface of the power panel fixing seat 1081 is higher than a bottom of the power panel cavity 108; a first threaded bore 1010 is provided in the pillow block 101.
Referring to fig. 1, 2, 4, 5, 6 and 7, the fluxgate drive plate 9 is fixed in the fluxgate drive plate installation cavity 106 and a lower surface of the fluxgate drive plate 9 abuts on the drive plate fixing seat 1061, the power circuit board 11 is fixed in the power board cavity 108 and a lower surface of the power circuit board 11 abuts on the power board fixing seat 1081, the transformer coil 18 is fixedly installed in the transformer accommodation cavity 1062 by using a transformer cover plate 17, and the transformer cover plate 17 is fixed at a bottom of the transformer accommodation cavity 1062 by using screws. Referring to fig. 5 and 15, a transformer bushing 19 is disposed outside the transformer coil 18, the transformer bushing 19 and the transformer cover 17 are matched with each other to fix the transformer coil, through holes are disposed on both the transformer bushing 19 and the transformer cover, and the transformer bushing 19 and the transformer cover can be fixed together at the bottom of the transformer accommodating cavity 1062 by screws.
Referring to fig. 1, 5, 10 and 11, the lower tip 3 includes a lower tip main body 301, a framework installation cavity 302 disposed at the right end of the lower tip main body 301, a fifth wire passing hole 303 disposed inside the framework installation cavity 302, a lower connector installation groove 304 disposed at the left end of the lower tip main body 301, a sixth wire passing hole 305 disposed at the bottom of the lower connector installation groove 304, the fifth wire passing hole 303 and the sixth wire passing hole 305 are communicated with each other, and the fifth wire passing hole 303 and the sixth wire passing hole 305 are communicated with each other between the lower connector installation groove 304 and the framework installation cavity 302. After the lower connector 5 is installed on the lower end head, the lower connector 5 and other components on the directional sensor can be electrically connected with each other through the fifth wire passing hole 303 and the sixth wire passing hole 305, wherein the fifth wire passing hole 303 and the sixth wire passing hole 305 are both located inside the lower end head 3, so that the reliability of the connecting wire can be ensured, the connecting wire is prevented from being damaged by friction and abrasion, and the stability of the electrical connection between the lower connector 5 and the sensor component can be ensured.
Referring to fig. 10 and 11, the lower end body 301 is a hollow structure, the fifth wire passing hole 303 and the sixth wire passing hole 305 are respectively communicated with two ends of the inner cavity of the lower end body 301, since the lower end 3 is provided with the skeleton mounting cavity and the lower connector mounting groove, the plug-in connection between the skeleton and the lower connector can be realized, and the lower end body is provided with the wire passing holes, so that the reasonable distribution and the reliable connection of the connecting wires between the connectors and the sensors can be realized, the reliability of connection between the lead and the connector in the directional sensor is improved by routing in the skeleton, and the difficulty of connection between the lead and the connector in the directional sensor is reduced.
The embodiment of the invention provides an orientation sensor for dynamic measurement, wherein an X-axis accelerometer, a Y-axis accelerometer, a Z-axis accelerometer and a data acquisition circuit board are arranged on the same side of a framework main body, an X-axis fluxgate, a Y-axis fluxgate, a Z-axis fluxgate and a power supply circuit board are arranged on the other side of the framework main body, symmetrical arrangement on two sides of the framework main body is realized through reasonable arrangement of the installation positions of the circuit board, the power supply circuit board, the accelerometer, the fluxgate and other components, the overall length of the orientation sensor is reduced, the installation fixing seat is adopted to reasonably utilize space while meeting the installation requirement, the number of fixed components is reduced, the overall size of the orientation sensor is reduced, a first wire passing hole, a second wire passing hole and a circuit board installation fixing seat are arranged at the bottom of a data acquisition circuit board installation cavity, a fluxgate, the power supply circuit board is electrically connected with the data acquisition circuit board through the second wire passing hole, and a special wire guide groove is also arranged, so that the wiring outside the framework is avoided, the installation size of the directional sensor can be reduced, and the lead connection difficulty among components in the directional sensor is reduced.
It will be apparent to those skilled in the art that various modifications and variations can be made in the embodiments of the present invention without departing from the spirit or scope of the embodiments of the invention. Thus, if such modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. The directional sensor for dynamic measurement is characterized by comprising a framework, an upper end and a lower end which are respectively fixed at two ends of the framework, an upper connector fixed on the upper end, a lower connector fixed on the lower end, an X-axis fluxgate, a Y-axis fluxgate and a Z-axis fluxgate which are close to the lower end and fixed on the framework side by side, a fluxgate driving circuit board and a data acquisition circuit board which are fixed at the middle part of the framework, a power circuit board fixed at the middle upper part of the framework, an X-axis accelerometer, a Y-axis accelerometer and a Z-axis accelerometer which are fixed at the upper part of the framework, wherein the framework comprises a framework main body, a pillow block arranged at the left end of the framework main body, a first line passing groove and a fluxgate mounting groove which are close to the pillow block and arranged at two sides of the framework main body, and data acquisition circuit board mounting cavities and fluxgate driving board, The accelerometer mounting cavity and the power panel cavity are symmetrically arranged at the right end of the framework main body, the first screw through hole is formed in the side wall of the right end of the framework main body, and the first threaded hole is formed in the side wall of the left end of the framework main body; the first line passing groove is located on the same side of the framework main body, the fluxgate mounting groove is located on the fluxgate drive board mounting cavity and the power board cavity is arranged on the same side of the framework main body, the first line passing groove is communicated with the data collection circuit board mounting cavity, a first line passing hole, a second line passing hole and a circuit board mounting fixing seat are arranged at the bottom of the data collection circuit board mounting cavity, the first line passing hole and the second line passing hole are distributed at two ends of the data collection circuit board mounting cavity, the fluxgate drive board mounting groove is communicated with the data collection circuit board mounting cavity through the first line passing hole, and the power board cavity is communicated with the data collection circuit board mounting cavity through the second line passing hole.
2. The directional sensor according to claim 1, wherein the accelerometer mounting cavity comprises an X-axis accelerometer mounting cavity, a Y-axis accelerometer mounting cavity and a Z-axis accelerometer mounting cavity which are perpendicular to each other, the Z-axis accelerometer mounting cavity is close to the data acquisition circuit board mounting cavity, the Y-axis accelerometer mounting cavity is located between the Z-axis accelerometer mounting cavity and the X-axis accelerometer mounting cavity, a second line passing groove is arranged between the Z-axis accelerometer mounting cavity and the data acquisition circuit board mounting cavity, the Z-axis accelerometer mounting cavity is communicated with the Y-axis accelerometer mounting cavity through a third line passing groove, and the Y-axis accelerometer mounting cavity is communicated with the X-axis accelerometer mounting cavity through a fourth line passing groove.
3. The directional sensor according to claim 2, wherein said data acquisition circuit board is fixed in said data acquisition circuit board mounting cavity, said X-axis accelerometer, said Y-axis accelerometer and said Z-axis accelerometer are fixed in said X-axis accelerometer mounting cavity, said Y-axis accelerometer mounting cavity and said Z-axis accelerometer mounting cavity respectively by pressing plates, said X-axis accelerometer, said Y-axis accelerometer and said Z-axis accelerometer are electrically connected to said data acquisition circuit board through said fourth wire passing groove, said third wire passing groove and said second wire passing groove respectively.
4. The orientation sensor of claim 3, wherein the upper header comprises an upper header body, a frame connecting portion disposed at a right end of the upper header body, a fifth wire passing groove disposed on a side wall of the frame connecting portion, a recessed table fixed at a left end of the upper header body, an upper connector mounting groove disposed on the recessed table, and a third wire passing hole disposed between the upper connector mounting groove and the frame connecting portion, the upper connector mounting groove and the frame connecting portion are communicated with each other through the third wire passing hole, the upper connector mounting groove is used for mounting an upper connector, and the upper connector mounting groove is a counter bore; and the upper connector is electrically connected with the data acquisition circuit board through the fifth wire passing groove and the third wire passing hole.
5. The directional sensor according to claim 4, wherein a second threaded hole with a chamfer is formed in the plane of the concave table, the second threaded hole is used for realizing the connection and fixation between the upper end and other components of the directional sensor, the upper connector mounting groove is of a T-shaped structure, a third threaded hole is formed in the bottom of the upper connector mounting groove, the third threaded hole is used for installing a fastening screw to realize the fixation between the upper connector and the upper end, a first rotation avoiding groove is formed in the middle of the upper end body, a first tapered hole is formed in the right end of the upper end body, the first tapered hole is close to the first rotation avoiding groove, and the first tapered hole is used for installing the fastening screw to realize the fixation between the framework and the upper end.
6. The directional sensor according to claim 1, wherein the fluxgate mounting groove includes an X-axis fluxgate cavity, a Y-axis fluxgate cavity and a Z-axis fluxgate cavity arranged side by side, the fluxgate mounting groove is arranged between the pillow block and the fluxgate drive plate mounting cavity, a sixth line passing groove is provided on the bobbin main body through the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity, and the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity are communicated with the fluxgate drive plate mounting cavity through the sixth line passing groove.
7. The directional sensor according to claim 6, wherein the X-axis fluxgate, the Y-axis fluxgate and the Z-axis fluxgate are fixed in the X-axis fluxgate cavity, the Y-axis fluxgate cavity and the Z-axis fluxgate cavity respectively using fluxgate seats, and the X-axis fluxgate, the Y-axis fluxgate and the Z-axis fluxgate are electrically connected to the fluxgate drive plate through a lead wire provided in the sixth wire passing groove.
8. The orientation sensor according to claim 1, wherein a drive plate fixing seat and a transformer accommodating cavity are arranged at the bottom of the fluxgate drive plate mounting cavity, wherein the lower surface of the drive plate fixing seat is higher than the bottom of the fluxgate drive plate mounting cavity, a fourth wire passing hole is arranged on the right end side wall of the fluxgate drive plate mounting cavity, and the fluxgate drive plate mounting cavity and the power supply plate cavity are communicated with each other through the fourth wire passing hole; a power panel fixing seat is arranged in the power panel cavity, wherein the lower surface of the power panel fixing seat is higher than the bottom of the power panel cavity; the first threaded hole is formed in the pillow block.
9. The directional sensor according to claim 8, wherein the fluxgate driving plate is fixed in the fluxgate driving plate installation cavity and a lower surface of the fluxgate driving plate abuts against the driving plate fixing seat, the power circuit board is fixed in the power board cavity and a lower surface of the power circuit board abuts against the power board fixing seat, a transformer coil is fixedly installed in the transformer accommodating cavity by using a transformer cover plate, and the transformer cover plate is fixed at a bottom of the transformer accommodating cavity by using screws.
10. The directional sensor according to claim 1, wherein the lower head comprises a lower head body, a frame installation cavity arranged at the right end of the lower head body, a fifth wire passing hole arranged in the frame installation cavity, a lower connector installation groove arranged at the left end of the lower head body, and a sixth wire passing hole arranged at the bottom of the lower connector installation groove, wherein the fifth wire passing hole and the sixth wire passing hole are communicated with each other, and the fifth wire passing hole and the sixth wire passing hole are communicated with each other between the lower connector installation groove and the frame installation cavity.
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| CN202010377360.9A CN111608581A (en) | 2020-05-07 | 2020-05-07 | Directional sensor for dynamic measurement |
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| CN202010377360.9A CN111608581A (en) | 2020-05-07 | 2020-05-07 | Directional sensor for dynamic measurement |
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