CN108008460B - Supporting platform for land gravimeter - Google Patents
Supporting platform for land gravimeter Download PDFInfo
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- CN108008460B CN108008460B CN201711347311.5A CN201711347311A CN108008460B CN 108008460 B CN108008460 B CN 108008460B CN 201711347311 A CN201711347311 A CN 201711347311A CN 108008460 B CN108008460 B CN 108008460B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V7/00—Measuring gravitational fields or waves; Gravimetric prospecting or detecting
- G01V7/02—Details
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Abstract
The invention discloses a support platform for a land gravimeter, which comprises a base, wherein the bottom of the base is supported by supporting legs, mounting holes connected with the supporting legs are respectively formed in four corners of the base, the supporting legs are provided with 4 supporting legs, two adjacent supporting legs are first supporting legs, the rest two supporting legs are second supporting legs, the first supporting legs are perpendicular to a horizontal plane, the two first supporting legs are parallel to each other, the second supporting legs are fixed in an outward inclining manner, the first supporting legs comprise supporting leg shells, lifting devices are installed in the supporting leg shells and controlled by coarse adjusting nuts installed on the supporting leg shells, the tops of the lifting devices are connected with the bottom of the base through fine adjusting pieces, the second supporting legs are also connected with the bottom of the base through fine adjusting pieces, and the tops of the fine adjusting pieces are matched with the mounting holes through the supporting rods. When the gravity meter is supported, the gravity meter can be quickly adjusted to be in a horizontal state, the stability of the gravity meter can be kept, and the measurement precision is improved.
Description
Technical Field
The invention relates to an installation technology of a gravimeter, in particular to a supporting platform for a land gravimeter.
Background
A gravimeter is a high-precision measuring instrument for measuring gravitational acceleration. The general method of gravity measurement is to mount the gravimeter on a stable platform for gravity measurement, wherein the stable platform is a horizontal orientation for keeping the gravimeter stable. At present, a support is processed when the gravimeter is produced, and the support is a triangular support and used for guaranteeing the stability and the levelness of the gravimeter. However, when the gravity at the slope in the mountain forest needs to be measured, the support cannot keep the gravity meter horizontal, so that the precision of the gravity meter in measurement is low, and a large error is caused.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a support platform for a land gravimeter, which can quickly adjust the gravimeter to a horizontal state when supporting the gravimeter, can keep the stability of the gravimeter and improve the measurement accuracy.
In order to achieve the above purpose, the present invention provides the following technical solutions: a supporting platform for a land gravimeter comprises a base, wherein an accommodating space is formed in the top of the base, the gravimeter is installed in the accommodating space, the accommodating space is in a circular groove shape, the bottom of the base is supported by supporting legs, the base is square, mounting holes connected with the supporting legs are formed in the four corners of the base respectively, the mounting holes are blind holes, 4 supporting legs are arranged and are arranged at the four corners of the base respectively, two adjacent supporting legs are first supporting legs, the rest two supporting legs are second supporting legs, the first supporting legs are perpendicular to the horizontal plane and are parallel to each other, the second supporting legs are fixed in an outward inclining mode, the two second supporting legs are symmetrically distributed at the bottom of the base, and an included angle formed between the plane formed by the two second supporting legs and the plane formed by the two first supporting legs is an acute angle; the first supporting leg comprises a supporting leg shell, a lifting device is installed in the supporting leg shell, the lifting device is controlled through a coarse adjusting nut installed on the supporting leg shell, the top of the lifting device penetrates out of the top of the supporting leg shell, the top of the lifting device is connected with the bottom of the base through a fine adjusting piece, the second supporting leg is also connected with the bottom of the base through the fine adjusting piece, and the top of the fine adjusting piece is matched with the installation hole through a supporting rod.
Preferably, elevating gear includes drive wheel and drive shaft, the drive wheel rotates the bottom of connecting at landing leg shell inner chamber, the one end of drive shaft and the wheel center welding of drive wheel top surface, the axle body of drive shaft passes through bearing I and installs in the landing leg shell, and the drive shaft axle body is equipped with the external screw thread in the part that lies in I top of bearing to the drive shaft that is equipped with the screw thread part with install the lifter threaded connection in the landing leg shell, the top and the fine setting spare of lifter are fixed.
Preferably, the bottom of the lifting rod is provided with a threaded hole matched with the threaded part of the driving shaft, and the depth of the threaded hole is greater than the length of the threaded part of the driving shaft.
Preferably, the fine setting piece includes the support, the center of support is equipped with the through hole that runs through from top to bottom, the bottom of through hole is equipped with the ball seat, and the bottom of ball seat is fixed with the top of landing leg, and the top of through hole is rotated and is connected with a fine setting nut, and the middle part fixed mounting of through hole has the thread bush, a fine setting pole is installed to fine setting nut's below, and the bottom of fine setting pole is equipped with and is used for with ball seat complex hemispherical bulb, the pole of fine setting pole be equipped with on the body with thread bush complex external screw thread section, the support passes through the connecting plate and is fixed with the base, the top at.
Preferably, the upper and lower both ends of through hole all are the step-like, the bottom of through hole is equipped with the anti-skidding ring that is used for preventing the ball seat roll-off through hole, is equipped with the anti-skidding recess that matches with the anti-skidding ring on the lateral wall of ball seat, the width of anti-skidding recess suits with the stroke of ball seat.
Preferably, the fine adjustment nut is mounted on the top of the through hole through a bearing II.
Preferably, the bottom of the fine adjustment nut is provided with a circular groove, the diameter of the groove is matched with that of the fine adjustment rod, and the top of the fine adjustment rod is inserted into the groove.
Preferably, the side wall of the groove is provided with a pair of guide grooves, the top of the fine adjustment rod is provided with a pair of guide rods, the guide rods are embedded in the guide grooves and slide along the guide grooves, and the distribution direction of the guide grooves is parallel to the axis of the support.
Preferably, the depth of the groove is identical to the width of the anti-slip groove.
By adopting the technical scheme, when the gravimeter is installed, the two first support legs are firstly inserted into the slope surface, the first support legs are kept parallel to the vertical surface, and the two second support legs are installed in the ascending direction of the slope surface and used for supporting the base. When the adjusting device is used for adjusting, the height of one side of the first supporting leg mounted on the base is lower than the height of one side of the second supporting leg mounted on the base, the first supporting leg and the second supporting leg are fixed, then the coarse adjusting nut is adjusted, the lifting device is lifted upwards to support the fine adjusting piece, and the side edge of the base is adjusted through the fine adjusting piece, so that the base is kept horizontal. The second supporting leg is inclined outwards and is equivalent to an inclined strut, so that the stability of the gravimeter during installation can be kept, and the phenomenon that the gravimeter falls down due to gravity center deviation is prevented. When the base is used for supporting the gravity meter, the base can be quickly adjusted to be in a horizontal state through the mode of matching coarse adjustment and fine adjustment, so that the gravity meter can be kept in the horizontal state and stable, and the levelness precision of the base is improved through the matching of the coarse adjustment and the fine adjustment, so that the measurement precision of the gravity meter is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a right side view of FIG. 1;
FIG. 3 is a schematic view of the construction of the first leg of the present invention;
FIG. 4 is an enlarged view of portion A of FIG. 3;
FIG. 5 is a schematic view of the construction of a second leg of the present invention;
FIG. 6 is a schematic view of the construction of a trim of the present invention;
fig. 7 is a partially enlarged view of portion B of fig. 6.
Detailed Description
The invention will be further illustrated by the following description of embodiments in conjunction with the accompanying drawings:
as shown in fig. 1 ~ 7, the support platform for a land gravimeter of the present invention is used for mounting and supporting an absolute gravimeter measured on a hillside, and includes a base 1, wherein a receiving space is provided at the top of the base 1, a gravimeter 2 is mounted in the receiving space, the receiving space is in a circular groove shape, the bottom of the base 1 is supported by legs 3, the base 1 is square, mounting holes 4 connected with the legs 3 are respectively provided at four corners of the base 1, and the mounting holes 4 are blind holes.
The landing legs 3 are provided with 4, and set up the four corners of base 1 respectively, and wherein, two adjacent landing legs 3 are first landing leg 31, and two remaining landing legs 3 are second landing leg 32. When fixed, the first leg 31 is perpendicular to the horizontal plane, and the two first legs 31 are parallel to each other, the second leg 32 is fixed in an inclined manner, and the two second legs 32 are symmetrically distributed at the bottom of the base 1, and the included angle between the plane formed by the two second legs 32 and the plane formed by the two first legs 31 is an acute angle, that is, the included angle between the second legs 32 and the vertical plane is an acute angle, and the specific angle of the included angle is determined according to the slope of a specific slope. The first support leg 31 comprises a support leg shell 311, a lifting device 6 is installed in the support leg shell 311, the lifting device 6 is controlled by a coarse adjusting nut 312 installed on the support leg shell 311, the top of the lifting device 6 penetrates out of the top of the support leg shell 311, the top of the lifting device 6 is connected with the bottom of the base 1 through a fine adjusting piece 5, the second support leg 32 is also connected with the bottom of the base 1 through the fine adjusting piece 5, and the top of the fine adjusting piece 5 is matched with the installation hole 4 through a support rod 9.
The lifting device 6 comprises a driving wheel 61 and a driving shaft 62, wherein the driving wheel 61 is rotatably connected to the bottom of the inner cavity of the leg shell 311, the driving wheel 61 is meshed with one side of a coarse adjusting nut 312 which is also arranged in the inner cavity of the leg shell 311, and the other side of the coarse adjusting nut 312 penetrates through the leg shell 311, so that the driving wheel is convenient to rotate by manual stirring. To better install coarse adjustment nut 312, a mounting cavity 313 is formed in leg housing 311 and coarse adjustment nut 312 is installed in mounting cavity 313, such that one side of coarse adjustment nut 312 engages drive wheel 61 and the other side extends through leg housing 311. One end of the driving shaft 62 is welded with the wheel center of the top surface of the driving wheel 61, the shaft body of the driving shaft 62 is installed in the leg shell 311 through a bearing I63, the part of the shaft body of the driving shaft 62 above the bearing I63 is provided with external threads, the driving shaft 62 provided with a threaded part is in threaded connection with a lifting rod 64 installed in the leg shell 311, the top of the lifting rod 64 is fixed with the fine adjustment part 5, the bottom of the lifting rod 64 is provided with a threaded hole matched with the threaded part of the driving shaft 62, the depth of the threaded hole is greater than the length of the threaded part of the driving shaft 62, the outer diameter of the lifting rod 64 is matched with the diameter of the inner cavity of the leg shell 311, the inner wall of the leg shell 311 is provided with an anti-rotation groove 314 for limiting the rotation of the lifting rod 64 in a stroke section matched with the.
The fine adjustment piece 5 comprises a support 51, a through hole 52 which penetrates through the support 51 up and down is arranged in the center of the support 51, a ball seat 53 is arranged at the bottom of the through hole 52, the bottom of the ball seat 53 is fixed with the top of the supporting leg 3, the top of the through hole 52 is rotatably connected with a fine adjustment nut 54 through a bearing II 8, a thread sleeve 57 is fixedly arranged in the middle of the through hole 52, a fine adjustment rod 55 is arranged below the fine adjustment nut 54, a hemispherical ball head 56 which is matched with the ball seat 53 is arranged at the bottom of the fine adjustment rod 55, an external thread section which is matched with the thread sleeve 57 is arranged on the rod body of the fine adjustment rod 55, the support 51 is fixed with a base 1 through a connecting plate 7, a supporting rod 9 is fixed at the top of, and both sides of the connecting plate 7 are symmetrically distributed on the support 51, and the fine adjustment nut 54 is positioned below the center of the connecting plate 7 so as to leave a space for operating the fine adjustment nut 54. The upper end and the lower end of the through hole 52 are both step-shaped, the bottom of the through hole 52 is provided with an anti-slip ring 58 for preventing the ball seat 53 from slipping out of the through hole 52, the side wall of the ball seat 53 is provided with an anti-slip groove 59 matched with the anti-slip ring 58, and the width of the anti-slip groove 59 is adapted to the stroke of the ball seat 53.
According to the invention, the bottom of the fine adjustment nut 54 is provided with the circular groove 541, the diameter of the groove 541 is matched with that of the fine adjustment rod 55, the top of the fine adjustment rod 55 is inserted into the groove 541, and the depth of the groove 541 is consistent with the width of the anti-slip groove 59, so that the fine adjustment nut 54 and the fine adjustment rod 55 are convenient to disassemble, and the maintenance is convenient. A pair of guide grooves 542 are formed in the side walls of the recess 541, a pair of guide bars 551 are formed at the top of the fine adjustment lever 55, the guide bars 551 are fitted in the guide grooves 542 and slide along the guide grooves 542, and the guide grooves 542 are arranged in parallel with the axis of the holder 51.
The present invention may further include a plumb device mounted on the first leg 31, the plumb device being suspended from the first leg 31 for observing whether the first leg 31 is held in a vertical position when mounted.
The bottom of the supporting leg 3 is provided with a tip part, so that the supporting leg can be conveniently inserted into a slope during fixed installation, and better fixation is realized. However, when the measuring site does not have soft soil, the tip portion cannot be inserted into the slope, and therefore, a claw portion 33 can be further installed at the bottom of the leg 3, the claw portion 33 is composed of 3 short rods which are identical, the 3 short rods of the claw portion 33 on the first leg 31 are uniformly distributed on the circumference at the bottom of the first leg 31, the 3 short rods of the claw portion 33 on the second leg 32 are uniformly distributed and fixedly installed on the circumference of a circular block 321, the top portion of the circular block 321 is integrally welded with the bottom portion of the second leg 32, and the tip portion of the second leg 32 is integrally welded with the bottom portion of the circular block 321. The bottom of the claw 33 is serrated, or the bottom of the claw 33 is provided with a non-slip mat.
In order to enable the second supporting leg 32 to better support the base 1, a supporting plate 322 is hinged to the top of the second supporting leg 32, the fine adjusting piece 5 is fixed on the supporting plate 322, and an included angle between the supporting plate 322 and the second supporting leg 32 is an obtuse angle, so that the inclination angle of the second supporting leg 32 can be adjusted at will to be suitable for slopes with various slopes.
When the gravimeter is installed, the two first legs 31 are firstly inserted into the slope surface, the first legs 31 are kept parallel to the vertical plane, and the two second legs 32 are installed in the ascending direction of the slope surface and used for supporting the base 1. Before the supporting legs 3 are installed, firstly, a slope generatrix at a measuring site is determined, and during installation, the projection of the axis of the base 1 on the slope surface needs to be coincided with the generatrix of the slope. When the generatrix of the slope is determined, the slope is regarded as the inclined surface of a huge cone, and the generatrix is the connection from the top point to the circumference of the bottom. During adjustment, the height of the side of the base 1 where the first support leg 31 is installed is lower than the height of the side where the second support leg 32 is installed, the first support leg 31 and the second support leg 32 are fixed, then the coarse adjusting nut 312 is adjusted, the lifting device 6 is lifted upwards to lift the fine adjusting piece 5, and then the side of the base 1 is adjusted through the fine adjusting piece 5, so that the base 1 is kept horizontal.
The second leg 32 of the present invention is inclined outward, which is equivalent to a brace, so that the stability of the gravimeter 2 during installation can be maintained, and the gravity center shift can be prevented from causing the gravity meter 2 to fall down. When the base is used for supporting the gravity meter 2, the base 1 can be quickly adjusted to be in a horizontal state through the mode of matching coarse adjustment and fine adjustment, so that the gravity meter 2 is kept in the horizontal state, the stability of the gravity meter 2 can be kept, and the levelness precision of the base 1 is improved through the matching of the coarse adjustment and the fine adjustment, so that the measurement precision of the gravity meter 2 is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (9)
1. The utility model provides a supporting platform for land gravimeter, includes base (1), the top of base (1) is equipped with accommodation space, installs gravimeter (2) in the accommodation space, and accommodation space is circular recess form, the bottom of base (1) is passed through landing leg (3) and is supported, its characterized in that: the base (1) is square, four corners of the base (1) are respectively provided with mounting holes (4) connected with the support legs (3), the mounting holes (4) are blind holes, the support legs (3) are provided with 4, and the four mounting holes are respectively arranged at four corners of the base (1), wherein two adjacent support legs (3) are first support legs (31), the rest two support legs (3) are second support legs (32), the first support legs (31) are vertical to a horizontal plane, the two first support legs (31) are parallel to each other, the second support legs (32) are obliquely fixed outwards, the two second support legs (32) are symmetrically distributed at the bottom of the base (1), and an included angle between a plane formed by the two second support legs (32) and a plane formed by the two first support legs (31) is an acute angle; the first supporting leg (31) comprises a supporting leg shell (311), a lifting device (6) is installed in the supporting leg shell (311), the lifting device (6) is controlled through a coarse adjusting nut (312) installed on the supporting leg shell (311), the top of the lifting device (6) penetrates out of the top of the supporting leg shell (311), the top of the lifting device (6) is connected with the bottom of the base (1) through a fine adjusting piece (5), the second supporting leg (32) is also connected with the bottom of the base (1) through the fine adjusting piece (5), and the top of the fine adjusting piece (5) is matched with the installation hole (4) through a supporting rod (9);
fine setting spare (5) are including support (51), through hole (52) that run through from top to bottom are equipped with at the center of support (51), the bottom of through hole (52) is equipped with ball seat (53), and the bottom of ball seat (53) is fixed with the top of landing leg (3), and the top of through hole (52) is rotated and is connected with a fine setting nut (54), and the middle part fixed mounting of through hole (52) has thread bush (57), a fine setting pole (55) is installed to the below of fine setting nut (54), and the bottom of fine setting pole (55) is equipped with and is used for hemispherical bulb (56) with ball seat (53) complex, is equipped with on the pole body of fine setting pole (55) with thread bush (57) complex external screw thread section, support (51) are fixed with base (1) through connecting plate (7), the top at connecting plate (7) is fixed in bracing piece (9).
2. A support platform for a land craft as claimed in claim 1 wherein: elevating gear (6) are including drive wheel (61) and drive shaft (62), drive wheel (61) rotate to be connected in the bottom of landing leg shell (311) inner chamber, the one end of drive shaft (62) welds with the wheel center of drive wheel (61) top surface, and the axle body of drive shaft (62) passes through bearing I (63) and installs in landing leg shell (311), and the part that lies in bearing I (63) top of drive shaft (62) axle body is equipped with the external screw thread to drive shaft (62) that are equipped with the screw thread part and lifter (64) threaded connection who installs in landing leg shell (311), and the top and fine setting spare (5) of lifter (64) are fixed.
3. A support platform for a land gravimeter according to claim 2, characterized in that: the bottom of the lifting rod (64) is provided with a threaded hole matched with the threaded part of the driving shaft (62), and the depth of the threaded hole is greater than the length of the threaded part of the driving shaft (62).
4. A support platform for a land craft as claimed in claim 1 wherein: the upper end and the lower end of the through hole (52) are both step-shaped, an anti-slip ring (58) used for preventing the ball seat (53) from sliding out of the through hole (52) is arranged at the bottom of the through hole (52), an anti-slip groove (59) matched with the anti-slip ring (58) is formed in the side wall of the ball seat (53), and the width of the anti-slip groove (59) is adapted to the stroke of the ball seat (53).
5. A support platform for a land craft as claimed in claim 4 wherein: the fine adjustment nut (54) is installed at the top of the through hole (52) through a bearing II (8).
6. A support platform for a land craft as claimed in claim 5 wherein: the cross section of the connecting plate (7) is in a shape like a Chinese character 'ji', the two sides of the connecting plate (7) are symmetrically distributed on the support (51), and the fine adjustment nut (54) is positioned below the center of the connecting plate (7).
7. A support platform for a land craft as claimed in claim 6 wherein: the bottom of the fine adjustment nut (54) is provided with a circular groove (541), the diameter of the groove (541) is matched with that of the fine adjustment rod (55), and the top of the fine adjustment rod (55) is inserted into the groove (541).
8. A support platform for a land craft as claimed in claim 7 wherein: the side wall of the groove (541) is provided with a pair of guide grooves (542), the top of the fine adjustment rod (55) is provided with a pair of guide rods (551), the guide rods (551) are embedded in the guide grooves (542) and slide along the guide grooves (542), and the distribution direction of the guide grooves (542) is parallel to the axis of the support (51).
9. A support platform for a land craft as claimed in claim 8 wherein: the depth of the groove (541) is consistent with the width of the anti-slip groove (59).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711347311.5A CN108008460B (en) | 2017-12-15 | 2017-12-15 | Supporting platform for land gravimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711347311.5A CN108008460B (en) | 2017-12-15 | 2017-12-15 | Supporting platform for land gravimeter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108008460A CN108008460A (en) | 2018-05-08 |
| CN108008460B true CN108008460B (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711347311.5A Expired - Fee Related CN108008460B (en) | 2017-12-15 | 2017-12-15 | Supporting platform for land gravimeter |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110434820A (en) * | 2019-08-02 | 2019-11-12 | 黄河科技学院 | A kind of portable vehicle maintenance of works person scooter |
| CN114001699B (en) * | 2021-12-31 | 2022-04-12 | 中国化学工程第十三建设有限公司 | Real estate building area measuring device |
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| CN202974756U (en) * | 2012-12-26 | 2013-06-05 | 北京林业大学 | Auxiliary support utilized by anchor rod drawing instrument |
| CN204114489U (en) * | 2014-10-11 | 2015-01-21 | 蒋余建 | Surveying instrument supporting frame |
| CN104360406A (en) * | 2014-10-17 | 2015-02-18 | 同济大学 | Support of electric balancing gravity meter |
| CN205352433U (en) * | 2015-12-30 | 2016-06-29 | 北京奥地探测仪器有限公司 | Adjustable tripod supporting frame suitable for gravity appearance |
| CN107268354A (en) * | 2017-07-18 | 2017-10-20 | 中南大学 | The general accurate measurement prism bracket of high ferro fragment-free track slab |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734333B (en) * | 2012-07-05 | 2017-03-29 | 北京理工大学 | A kind of precise guide rail universal ball end axle adjusting bracket |
| CN206593046U (en) * | 2017-03-30 | 2017-10-27 | 王井平 | A kind of portable street lamp in community |
| CN206707233U (en) * | 2017-05-19 | 2017-12-05 | 国家电网公司 | A kind of movable building construction support |
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2017
- 2017-12-15 CN CN201711347311.5A patent/CN108008460B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202974756U (en) * | 2012-12-26 | 2013-06-05 | 北京林业大学 | Auxiliary support utilized by anchor rod drawing instrument |
| CN204114489U (en) * | 2014-10-11 | 2015-01-21 | 蒋余建 | Surveying instrument supporting frame |
| CN104360406A (en) * | 2014-10-17 | 2015-02-18 | 同济大学 | Support of electric balancing gravity meter |
| CN205352433U (en) * | 2015-12-30 | 2016-06-29 | 北京奥地探测仪器有限公司 | Adjustable tripod supporting frame suitable for gravity appearance |
| CN107268354A (en) * | 2017-07-18 | 2017-10-20 | 中南大学 | The general accurate measurement prism bracket of high ferro fragment-free track slab |
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| CN108008460A (en) | 2018-05-08 |
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