CN114236630B - Locking device for core component of gravity meter - Google Patents

Locking device for core component of gravity meter Download PDF

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Publication number
CN114236630B
CN114236630B CN202111001079.6A CN202111001079A CN114236630B CN 114236630 B CN114236630 B CN 114236630B CN 202111001079 A CN202111001079 A CN 202111001079A CN 114236630 B CN114236630 B CN 114236630B
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China
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locking
limiting
component
assembly
unlocking
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CN114236630A (en
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吴畏
仇恺
刘红光
朱学毅
王智奇
谭志军
高岩
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707th Research Institute of CSIC
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707th Research Institute of CSIC
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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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/30—Nuclear fission reactors

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  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Details Of Measuring And Other Instruments (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Abstract

The invention relates to a locking device for a core component of a gravity meter, which comprises a fixed bracket, a limiting component, a locking executing component, a locking spring and an unlocking component; the limiting component is fixedly inserted into a limiting component mounting hole on the fixed bracket; the limiting component is provided with a central hole, an upper limiting table top and a lower limiting table top; the locking execution assembly is coaxially inserted into the central hole of the limiting assembly; the locking execution assembly is provided with a central through hole which is formed by a locking spring mounting hole section, a transition hole section and a locking action hole section from top to bottom, and the locking action hole section is a conical hole matched with the outer conical surface on the locking part in shape; a limit matching part is arranged on the locking execution assembly close to the lower end part; the locking spring is arranged in the locking spring mounting hole section, and a pressure spring piece is fixed at the upper end of the limiting component, so that the lower end of the locking spring is in downward pressing contact with the locking executing component; the unlocking component is connected below the fixed support and is in contact with the lower end part of the locking execution component. The invention ensures the position uniqueness of the locked component.

Description

Locking device for core component of gravity meter
Technical Field
The invention belongs to the field of gravity acceleration measuring instruments, and particularly relates to a locking device for a core component of a gravity meter.
Background
The gravity acceleration g is a basic geophysical constant, but can change along with the influence of factors such as topography geology, altitude, moon position and the like, and the accurate measurement of the gravity acceleration has very important significance in the fields of earth science, resource exploration, national defense construction and the like. The special equipment for measuring the gravitational acceleration is called a gravity meter, which belongs to a precise measuring instrument, and has a complex structure and a plurality of parts. For accurate measurement 10 -9 g～10 -7 g-magnitude gravitational acceleration changes, requiring the gravity meter core measurement component to be very sensitive to the acceleration changes; but during the handling and transportation of the gravimeter, the gravity meter will oftenThe vibrating acceleration equivalent to several g or even tens of g is generated, and the fragile gravity meter core measuring component is extremely fragile.
In order to solve the problem, a gravity meter locking structure is designed, so that a core measuring part of the gravity meter can be firmly and reliably protected in the transportation process, and the gravity meter performance is not influenced after unlocking. In particular, for the gravity measuring instrument with very high requirements on the working and locking positions of the locked component, the axial position and the horizontal height of the locked component in the state before and after locking are guaranteed to be strictly consistent, and the positioning precision is unchanged after repeated use.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a mechanical structure for locking a gravity meter core component, which can ensure the position uniqueness of the locked component and can not deform to influence the locking effect when being used repeatedly.
The above object of the present invention is achieved by the following technical solutions:
a locking device for a gravity meter core, comprising: the locking device comprises a fixed bracket, a limiting assembly, a locking executing assembly, a locking spring and an unlocking assembly; the fixed support is provided with a limiting component mounting hole, and the limiting component is fixedly inserted into the limiting component mounting hole; the locking execution assembly is coaxially inserted into the central hole of the limiting assembly in an up-down movable manner; the center of the locking execution assembly is provided with a center through hole for the locking component to pass through, the center through hole is composed of a locking spring mounting hole section, a transition hole section and a locking action hole section from top to bottom, and the locking action hole section is in a conical hole structure and is matched with the outer conical surface shape of the locking component; a limit matching part is arranged on the locking execution assembly at a position close to the lower end part; the locking spring is arranged in the locking spring mounting hole section, and a pressure spring piece is fixed at the upper end of the limiting component, so that the lower end of the locking spring and the locking executing component form downward compression contact along the axial direction; the unlocking component is connected below the fixed bracket and is contacted with the lower end part of the locking execution component;
when no upward acting force is applied to the unlocking component, the locking executing component moves to a lower working position under the action of the locking spring; the limiting matching part is contacted with the lower limiting table top, so that the locking execution assembly and the limiting assembly form axial lower limiting matching, and the conical surface of the locking action hole section is in pressing contact with the outer conical surface on the locking part, so that the core part of the gravity meter is in a locking state;
when an upward acting force is applied to the unlocking component, the locking executing component moves to an upper working position; the limiting matching part is contacted with the upper limiting table top, so that the locking execution assembly and the limiting assembly form axial limiting matching, and the conical surface of the locking action hole section is separated from the outer conical surface on the locking part, so that the core part of the gravity meter is in an unlocking state.
Further: the limiting component consists of a limiting cylinder and an adjusting sleeve; the limiting cylinder is of a cylinder structure, the upper end of the limiting cylinder is provided with a flange part, and the outer cylinder wall is provided with external threads; the adjusting sleeve is of a sleeve body structure, the bottom end of the sleeve body is provided with an inner edge, and the center of the sleeve body is provided with a threaded hole; the adjusting sleeve is connected with the limiting cylinder through internal and external threads; the lower end surface of the limiting cylinder forms the upper limiting table surface; the lower limit table top is formed on the upper end face of the inner edge of the adjusting sleeve.
Further: the locking execution assembly consists of a locking sleeve and a connecting ring; the locking sleeve is provided with a central through hole, and the connecting ring is sleeved and fixed on the outer part of the locking sleeve and is inserted into a space between the upper limit table top and the lower limit table top to form the limit matching part.
Further: the unlocking component consists of an unlocking support, a driving rod and a transmission rod; the unlocking support is fixedly connected with the fixed support and extends out of the lower end of the fixed support, the driving rod is arranged below the fixed support, one end of the driving rod is hinged with the lower extending end of the unlocking support through a pin shaft, and the other end of the driving rod is vertically connected with the transmission rod; the upper end of the driving rod is in contact fit with the lower end of the connecting ring.
Further: two hemispherical protrusions are arranged at the upper end of the driving rod, two hemispherical grooves are arranged at the lower end of the connecting ring, and the two hemispherical protrusions are respectively clamped into the two hemispherical grooves.
The invention has the advantages and positive effects that:
1. according to the invention, the locking execution assembly is tightly pressed by the locking spring, and the locking execution assembly is tightly pressed on the external conical surface of the locking component by the conical hole, so that the locking of the core component of the gravity instrument is realized; and through exerting ascending pressure to the unblock subassembly, make the unblock subassembly promote locking and carry out the subassembly and go up, make the bell mouth of locking and carry out the subassembly and the outside conical surface of locking part break away from the contact to realize the unblock to the gravity appearance core part, guaranteed by the uniqueness of locking part position owing to being provided with the lower spacing mesa that carries out the subassembly to locking down, in addition, this conical surface cooperation locking mode has also realized can not warp and influence the locking effect in repetitious usage.
2. The gravity meter is locked by the locking component, so that the core component of the gravity meter is protected from being damaged under the vibration conditions of transportation and the like, and the gravity meter can be transported and transported according to a conventional method; after the locking is released, the gravity gauge can quickly resume working. The locking device is simple in composition, reliable in function and long in service life, and the self precision of the gravity meter cannot be influenced in the locking process.
3. According to the invention, the pin joint point of the transmission rod and the action point of the driving rod are respectively positioned at two sides below the locking execution assembly, so that the action force arm of the driving rod is greatly increased, the requirement on driving power is reduced, the connection mode is more reliable, and the service life is longer.
5. The invention limits the cylindrical matching surface of the locking execution assembly not to be arranged on the fixed bracket, but is designed into an independent limiting cylinder, thereby reducing the processing difficulty of the fixed bracket; the limit cylinder with a relatively simple structure has higher precision of the matching surface with the locking part, higher yield and is beneficial to improving the locking matching precision and reducing the cost;
6. the adjusting sleeve is connected with the limiting cylinder through threads, and the axial connection position of the adjusting sleeve and the limiting cylinder can be adjusted, so that the lowest position of the locking execution assembly, which can move downwards, is adjusted, and the locking position of the locked part is ensured to meet the requirement;
7. compared with the scheme that the old type matching surface is arranged on the fixed support, the diameter of the matching surface of the outer diameter of the locking sleeve of the device is reduced, and the possibility of locking when the locking sleeve moves up and down is greatly reduced;
8. according to the gravity gauge locking device, the initial elasticity of the locking spring can be changed by adjusting the height of the pressure spring piece, so that the locking force is adjusted, and the locking force requirement of the gravity gauge in the carrying and transporting processes is met.
Drawings
FIG. 1 is a schematic view of the present invention in a gravity locked state;
FIG. 2 is a schematic view of the present invention in an unlocked state of the gravity meter;
FIG. 3 is a schematic view of the structure 1 of the present invention (excluding the fixed bracket and the driving rod);
fig. 4 is a schematic view of the structure of the present invention 2 (excluding the fixed bracket and the driving lever).
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings. It should be noted that the present embodiments are illustrative and not restrictive.
A locking device for a core component of a gravity meter, please refer to fig. 1-4, which is as follows: mainly comprises a fixed bracket 1, a limiting component, a locking executing component, a locking spring 4 and an unlocking component
The fixed support is a basic part of the locking device and is used for installing other parts of the locking device, and a limiting assembly installation hole is formed in the fixed support.
The limiting assembly is integrally and fixedly inserted into the limiting assembly mounting hole, and the limiting assembly is used for limiting the radial direction, the upper limit position and the lower limit position of the locking execution assembly; the limiting component consists of a limiting cylinder 5 and an adjusting sleeve 8. The limiting cylinder is of a cylinder structure, the upper end of the cylinder is provided with a flange part, the outer cylinder wall of the cylinder is provided with external threads, and a center hole of the limiting cylinder is matched with the locking execution assembly. The barrel body part of the limiting barrel is inserted into the mounting hole of the limiting assembly, and the flange part is supported at the upper end of the fixing bracket and is fixedly connected with the fixing bracket through a screw for connecting the flange part and the fixing bracket. The adjusting sleeve is of a sleeve body structure with an inner edge arranged at the bottom end and a threaded hole arranged in the center. The adjusting sleeve is connected with the limiting cylinder through internal and external threads; the lower end surface of the limiting cylinder forms the upper limiting table surface; the lower limit table top is formed on the upper end face of the inner edge of the adjusting sleeve. The connecting position of the adjusting sleeve and the limiting cylinder can be adjusted through rotating the adjusting sleeve, so that the height of the lower limiting table top is adjusted, and the locking position is adjusted.
The locking execution assembly is coaxially inserted into the central hole of the limiting cylinder in an up-down movable mode, and is used for being in direct locking contact with the locked component. The locking execution assembly is composed of a locking sleeve 11 and a connecting ring 10. The central through hole on the locking sleeve is used for being penetrated by the locking part 100, the central through hole is composed of a locking spring mounting hole section, a transition hole section and a locking action hole section from top to bottom, and the locking action hole section is in a conical hole structure and is matched with the outer conical surface shape on the locking part. The connecting ring is sleeved and fixed on the outer part of the locking sleeve and is inserted into a space between the upper limit table top and the lower limit table top to form a limit matching part.
The locking execution assembly and the limiting assembly adopt the matching mode, and the accurate matching processing of the limiting cylinder and the locking sleeve can ensure that the locking sleeve is always positioned on the central axis after moving up and down, thereby ensuring the coaxial precision of the locked part contacted with the conical surface of the locking sleeve in the locking state. In addition, when the locking sleeve moves downwards under the action of the locking spring, the connecting ring which is connected with the locking sleeve into a whole in a bonding mode and the like is blocked by the adjusting sleeve and can only descend to a certain position, so that the horizontal height of the locked part in the locking state is ensured. Furthermore, the adjusting sleeve is in threaded connection with the limiting cylinder, and the horizontal height can be adjusted through rotation, so that the locking position can be adjusted.
The locking spring 4 is used for applying locking pressure to the locking execution assembly, is installed in the locking spring installation hole section, is fixed with a pressure spring piece at the upper end of the limiting assembly, can adopt a pressure plate 3 structure, is connected with the upper end of the limiting cylinder through the screw 2, and enables the lower end of the locking spring to form downward compression contact with the locking sleeve along the axial direction. Specifically, the lower end of the locking spring is in compression contact with the bottom surface of the locking spring mounting hole section so as to realize axial compression of the locking sleeve. By changing the height of the compression spring member or the initial length of the locking spring, the locking force of the locking executing assembly to the locked member can be adjusted.
The unlocking component is connected to the lower portion of the fixed support. The unlocking assembly consists of an unlocking support 6, a driving rod 9 and a transmission rod 12. The unlocking support is fixedly connected with the fixing support at one side of the installation position of the locking execution assembly and extends out of the lower end of the fixing support. The driving rod is arranged below the fixed support, one end of the driving rod is hinged with the lower extending end of the unlocking support through a pin shaft 7, and the other end of the driving rod extends to the other side of the installation position of the locking execution assembly and is vertically connected with the transmission rod. The upper end of the driving rod is in contact fit with the lower end of the connecting ring. Preferably, two hemispherical protrusions 9.1 are formed at the upper end of the driving rod and are respectively arranged at the left side and the right side of the installation position of the locking execution assembly, two hemispherical grooves are formed at the lower end of the connecting ring, and the two hemispherical protrusions are respectively clamped into the two hemispherical grooves.
This a locking device for gravity appearance core part is when locking the core part of gravity appearance, uses by two sets of locking device supporting symmetry, and one set of locking device locks down the locking part, and another set of locking device locks up the locking part, above locking for the example, to this locking device's theory of operation as follows:
when in a locking state, the locking sleeve is tightly matched with the conical surface on the locked part under the action of the compressed locking spring, so that the locked part is limited to move upwards, forwards, backwards, leftwards and rightwards (the downward displacement limitation is realized by another locking mechanism with the same principle, which is not repeated here), at the moment, the limit matching part of the locking execution assembly is contacted with the lower limit table surface of the adjusting sleeve, and the locking sleeve can limit the locked part at a unique position under the limitation of the limit cylinder, the adjusting sleeve and the connecting ring. When the unlocking is needed, the driving rod moves upwards to drive the driving rod to rotate around the driving rod and the connecting pin shaft of the fixed seat, the two protrusions on the driving rod drive the connecting ring and the locking sleeve to move upwards to be separated from the locked component, and when the limit matching part of the locking executing component contacts with the lower end face of the limit cylinder, namely, contacts with the upper limit table surface, complete unlocking is realized, and the locking spring is further compressed during the process. When the driving rod moves downwards, the locking sleeve returns to the initial position and is locked again.
Although the embodiments of the present invention and the accompanying drawings have been disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit of the invention and the appended claims, and therefore the scope of the invention is not limited to the embodiments and the disclosure of the drawings.

Claims (4)

1. A locking device for a gravity meter core, comprising: the locking device comprises a fixed bracket, a limiting assembly, a locking executing assembly, a locking spring and an unlocking assembly; the fixed support is provided with a limiting component mounting hole, and the limiting component is fixedly inserted into the limiting component mounting hole; the locking execution assembly is coaxially inserted into the central hole of the limiting assembly in an up-down movable manner; the center of the locking execution assembly is provided with a center through hole for the locking component to pass through, the center through hole is composed of a locking spring mounting hole section, a transition hole section and a locking action hole section from top to bottom, and the locking action hole section is in a conical hole structure and is matched with the outer conical surface shape of the locking component; a limit matching part is arranged on the locking execution assembly at a position close to the lower end part; the locking spring is arranged in the locking spring mounting hole section, and a pressure spring piece is fixed at the upper end of the limiting component, so that the lower end of the locking spring and the locking executing component form downward compression contact along the axial direction; the unlocking component is connected below the fixed bracket and is contacted with the lower end part of the locking execution component;
when no upward acting force is applied to the unlocking component, the locking executing component moves to a lower working position under the action of the locking spring; the limiting matching part is contacted with the lower limiting table top, so that the locking execution assembly and the limiting assembly form axial lower limiting matching, and the conical surface of the locking action hole section is in pressing contact with the outer conical surface on the locking part, so that the core part of the gravity meter is in a locking state;
when an upward acting force is applied to the unlocking component, the locking executing component moves to an upper working position; the limiting matching part is contacted with the upper limiting table top, so that the locking execution assembly and the limiting assembly form axial limiting matching, the conical surface of the locking action hole section is separated from contact with the outer conical surface on the locking part, and the core part of the gravity meter is in an unlocking state;
the limiting component consists of a limiting cylinder and an adjusting sleeve; the limiting cylinder is of a cylinder structure, the upper end of the limiting cylinder is provided with a flange part, and the outer cylinder wall is provided with external threads; the adjusting sleeve is of a sleeve body structure, the bottom end of the sleeve body is provided with an inner edge, and the center of the sleeve body is provided with a threaded hole; the adjusting sleeve is connected with the limiting cylinder through internal and external threads; the lower end surface of the limiting cylinder forms the upper limiting table surface; the lower limit table top is formed on the upper end face of the inner edge of the adjusting sleeve.
2. The locking device for a gravity meter core according to claim 1, wherein: the locking execution assembly consists of a locking sleeve and a connecting ring; the locking sleeve is provided with a central through hole, and the connecting ring is sleeved and fixed on the outer part of the locking sleeve and is inserted into a space between the upper limit table top and the lower limit table top to form the limit matching part.
3. The locking device for a gravity meter core according to claim 2, wherein: the unlocking component consists of an unlocking support, a driving rod and a transmission rod; the unlocking support is fixedly connected with the fixed support and extends out of the lower end of the fixed support, the driving rod is arranged below the fixed support, one end of the driving rod is hinged with the lower extending end of the unlocking support through a pin shaft, and the other end of the driving rod is vertically connected with the transmission rod; the upper end of the driving rod is in contact fit with the lower end of the connecting ring.
4. A locking device for a gravity meter core according to claim 3, wherein: two hemispherical protrusions are arranged at the upper end of the driving rod, two hemispherical grooves are arranged at the lower end of the connecting ring, and the two hemispherical protrusions are respectively clamped into the two hemispherical grooves.
CN202111001079.6A 2021-08-30 2021-08-30 Locking device for core component of gravity meter Active CN114236630B (en)

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CN114236630B true CN114236630B (en) 2023-06-20

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KR101671390B1 (en) * 2016-08-16 2016-11-02 마이다스시스템주식회사 Stage leveling device for high performance mask aligner
CN111287325A (en) * 2020-03-02 2020-06-16 朱世杰 A remove board house adjusting device for building engineering
CN111435176A (en) * 2019-01-14 2020-07-21 宋光珍 Drilling gravimeter probe
CN112503351A (en) * 2020-10-29 2021-03-16 中国科学院西安光学精密机械研究所 Thread type leveling mechanism for theodolite

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DE3209590A1 (en) * 1982-03-17 1983-09-29 Bodenseewerk Geosystem GmbH, 7770 Überlingen GRAVIMETER
CN208560252U (en) * 2018-07-20 2019-03-01 深圳市同方光电科技有限公司 Child-resistant opens Packaging Bottle
CN210316491U (en) * 2019-04-19 2020-04-14 国骅建设有限公司 Telescopic wall connecting piece
CN111301666A (en) * 2020-03-13 2020-06-19 贺龙杰 Novel straight lifting retractable undercarriage
CN111830587B (en) * 2020-06-22 2022-07-26 中国船舶重工集团公司第七0七研究所 Locking mechanism of gravimeter
CN213795431U (en) * 2020-10-30 2021-07-27 中国船舶重工集团公司第七0七研究所 High-precision clamping and positioning device for turning of revolving body part

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Publication number Priority date Publication date Assignee Title
KR101671390B1 (en) * 2016-08-16 2016-11-02 마이다스시스템주식회사 Stage leveling device for high performance mask aligner
CN111435176A (en) * 2019-01-14 2020-07-21 宋光珍 Drilling gravimeter probe
CN111287325A (en) * 2020-03-02 2020-06-16 朱世杰 A remove board house adjusting device for building engineering
CN112503351A (en) * 2020-10-29 2021-03-16 中国科学院西安光学精密机械研究所 Thread type leveling mechanism for theodolite

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