CN114236630A - Locking device for core component of gravimeter - Google Patents

Locking device for core component of gravimeter Download PDF

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Publication number
CN114236630A
CN114236630A CN202111001079.6A CN202111001079A CN114236630A CN 114236630 A CN114236630 A CN 114236630A CN 202111001079 A CN202111001079 A CN 202111001079A CN 114236630 A CN114236630 A CN 114236630A
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China
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locking
limiting
assembly
component
unlocking
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CN202111001079.6A
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CN114236630B (en
Inventor
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)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Details Of Measuring And Other Instruments (AREA)

Abstract

The invention relates to a locking device for a core component of a gravimeter, which comprises a fixed support, a limiting assembly, a locking execution assembly, a locking spring and an unlocking assembly, wherein the fixed support is fixedly connected with the limiting assembly; the limiting component is fixedly inserted into a limiting component mounting hole on the fixed support; the limiting component is provided with a central hole, an upper limiting table board and a lower limiting table board; the locking execution component is coaxially inserted into the central hole of the limiting component; the locking execution assembly is provided with a central through hole which consists 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 a conical hole matched with the shape of an outer conical surface on the locking part; a limiting matching part is arranged on the locking execution assembly and close to the lower end part; the locking spring is arranged in the locking spring mounting hole section, and the upper end of the limiting assembly is fixedly provided with the pressure spring piece, so that the lower end of the locking spring is in downward pressing contact with the locking execution assembly; the unlocking component is connected below the fixed bracket and is contacted with the lower end part of the locking execution component. The present invention ensures the uniqueness of the position of the locked member.

Description

Locking device for core component of gravimeter
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 factors such as geology of the terrain, altitude, moon position and the like, and the accurate measurement of the gravity acceleration has very important significance in the fields of geoscience, resource exploration, national defense construction and the like. The special equipment for measuring the gravity acceleration is called a gravimeter, and the gravimeter belongs to a precision measuring instrument, and has a complex structure and numerous parts. For accurate measurement 10-9g～10-7g-magnitude gravity acceleration changes, and the core measuring component of the gravimeter is required to be very sensitive to the changes of the acceleration; however, during the handling and transportation of the gravimeter, vibration acceleration equivalent to several g or even tens of g is generated, and the fragile core measuring component of the gravimeter is easily damaged.
In order to solve the problem, a gravimeter locking structure is designed, a core measuring component of the gravimeter can be firmly and reliably protected in the transportation process, and the performance of the gravimeter is not affected after the locking is released. Particularly, for gravity measurement instruments with very high requirements on the working and locking positions of the locked part, the axial position and the horizontal height of the locked part in the states before and after locking are strictly consistent, and the positioning accuracy 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 core component of a gravimeter, which can ensure the uniqueness of the position of a locked component and can not deform to influence the locking effect after being repeatedly used for many times.
The above object of the present invention is achieved by the following technical solutions:
a locking device for a core component of a gravimeter, comprising: the locking device comprises a fixed support, a limiting assembly, a locking executing assembly, a locking spring and an unlocking assembly; the fixed bracket is provided with a limiting component mounting hole, and the limiting component is fixedly inserted in the limiting component mounting hole; the locking executing assembly is coaxially inserted into the central hole of the limiting assembly in an up-down movable mode; the center of the locking execution assembly is provided with a central through hole for the locking component to pass through, 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 of a conical hole structure and is matched with the shape of an outer conical surface on the locking component; a limiting 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 the upper end of the limiting assembly is fixedly provided with the pressure spring piece, so that the lower end of the locking spring is in downward pressing contact with the locking execution assembly along the axial direction; the unlocking assembly is connected below the fixed support and is in contact with the lower end part of the locking execution assembly;
when the unlocking assembly does not exert upward acting force, the locking execution assembly moves to a lower working position under the action of the locking spring; the limiting matching part is contacted with the lower limiting table board, 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 gravimeter is in a locking state;
when an upward acting force is applied to the unlocking assembly, the locking execution assembly moves to the upper working position; the limiting matching part is in contact with the upper limiting table board, so that the locking execution assembly and the limiting assembly form axial upper 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 gravimeter is in an unlocking state.
Further: the limiting assembly consists of a limiting cylinder and an adjusting sleeve; the upper end of the limiting cylinder is provided with a flange part, and the wall of the outer cylinder is provided with an external thread; the adjusting sleeve is a sleeve body structure with an inner edge at the bottom end and a threaded hole 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 upper end surface of the inner edge of the adjusting sleeve forms the lower limiting table surface.
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 outside the locking sleeve and inserted into a space between the upper limiting table board and the lower limiting table board to form the limiting matching part.
Further, the method comprises the following steps: the unlocking assembly comprises 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, the method comprises the following steps: 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 in the two hemispherical grooves.
The invention has the advantages and positive effects that:
1. according to the invention, the locking executing assembly is pressed by the locking spring and is pressed on the outer conical surface of the locking component through the conical hole, so that the locking of the gravity meter core component is realized; and through applying ascending pressure to the unblock subassembly, make the unblock subassembly promote locking executive component to go upward, make the bell mouth of locking executive component and the outside conical surface of locking part break away from the contact to realize the unblock to gravimeter core unit, because of being provided with the lower spacing mesa that descends to locking executive component, guaranteed by the uniqueness of locking part position, in addition, this conical surface cooperation locking mode has also realized can not warp and influence the locking effect repeatedly repetitious usage.
2. According to the invention, the core components of the gravimeter are protected from being damaged under vibration conditions such as transportation and the like by locking the gravimeter and the locked component, so that the gravimeter can be transported and transported according to a conventional method; after the locking is released, the gravimeter can quickly recover to work. The locking device has simple composition, reliable function and long service life, and the self precision of the gravimeter cannot be influenced in the locking process.
3. The pin joint point and the driving rod action point of the transmission rod are respectively arranged 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 support, but to be designed into an independent limiting cylinder, thereby reducing the processing difficulty of the fixed support; the limiting cylinder with a relatively simple structure has higher precision of the matching surface of the limiting cylinder and the locking component, has higher yield, and is beneficial to improving the locking matching precision and reducing the cost;
6. according to the invention, the adjusting sleeve is in threaded connection with the limiting cylinder, 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 capable of moving downwards is adjusted, and the locking position of a locked part is ensured to meet the requirement;
7. compared with the scheme that the old 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 that the locking sleeve is clamped when moving up and down is greatly reduced;
8. according to the invention, 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 gravimeter in the carrying and transporting processes is met.
Drawings
FIG. 1 is a schematic view of the present invention in a locked condition of the gravimeter;
FIG. 2 is a schematic view of the present invention in a gravimeter unlocked state;
FIG. 3 is a schematic view of the present invention (not including the fixed bracket and the driving rod) in FIG. 1;
fig. 4 is a schematic structural view 2 of the present invention (not including the fixing bracket and the driving rod).
Detailed Description
The structure of the present invention will be further described by way of examples with reference to the accompanying drawings. It is to be understood that this embodiment is illustrative and not restrictive.
A locking device for a core component of a gravimeter, please refer to fig. 1-4, and the invention point thereof is: mainly comprises a fixed bracket 1, a limit component, a locking execution component, a locking spring 4 and an unlocking component
The fixing support is a basic part of the locking device and is used for installing other parts of the locking device, and a limiting assembly installing hole is formed in the fixing support.
The limiting assembly is integrally fixed and inserted in the limiting assembly mounting hole, and is used for limiting the radial position, the upper limit position and the lower limit position of the locking execution assembly; the limiting assembly consists of a limiting cylinder 5 and an adjusting sleeve 8. The limiting cylinder is a cylinder structure with a flange part at the upper end and an external thread on the outer cylinder wall, and a central hole of the limiting cylinder is matched with the locking execution assembly. The barrel part of the limiting barrel is inserted into the limiting assembly mounting hole, and the flange part is supported at the upper end of the fixing support and fixedly connected with the fixing support through screws for connecting the limiting barrel and the fixing support. The adjusting sleeve is a sleeve body structure with an inner edge arranged at the bottom end and a threaded hole arranged at 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 upper end surface of the inner edge of the adjusting sleeve forms the lower limiting table surface. The connecting position of the limiting barrel and the limiting barrel can be adjusted by rotating the adjusting sleeve, so that the height of the lower limiting table surface 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 directly in locking contact with the locked part. The locking actuation assembly is composed of a locking sleeve 11 and a connecting ring 10. The central through hole on the locking sleeve is used for the locked part 100 to pass through, 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 of a conical hole structure and is matched with the shape of an outer conical surface on the locking part. The connecting ring is sleeved and fixed outside the locking sleeve and inserted into a space between the upper limiting table top and the lower limiting table top to form a limiting matching part.
The locking execution assembly and the limiting assembly adopt the matching mode, and the locking sleeve can be ensured to be always positioned on the central axis after moving up and down through the precise matching processing of the limiting cylinder and the locking sleeve, so that the coaxial precision of a locked part in contact with the conical surface of the locking sleeve in a locking state is ensured. 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 only can fall to a certain position, so that the horizontal height of the locked component in a 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 arranged in the locking spring mounting hole section, is fixedly provided with a pressure spring piece at the upper end of the limiting assembly, can adopt a pressure plate 3 structure, and is connected with the upper end of the limiting cylinder through a screw 2, so that the lower end of the locking spring and the locking sleeve form downward pressing contact along the axial direction. Specifically, the lower end of the locking spring is in pressing contact with the bottom surface of the locking spring mounting hole section so as to realize axial pressing of the locking sleeve. By changing the height of the spring member or the initial length of the lock spring, the locking force of the lock actuator assembly against the member to be locked can be adjusted.
The unlocking assembly is connected to the lower portion of the fixing support. The unlocking assembly consists of an unlocking support 6, a drive rod 9 and a transmission rod 12. The unlocking support is fixedly connected with the fixed support at one side of the installation position of the locking execution assembly 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 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 driving 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 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, by two sets of locking device supporting symmetry uses, one set of locking device locks down locking part, and another set of locking device locks up locking part, and above locking is the example, and to this locking device's theory of operation as follows:
when the locking mechanism is in a locking state, the locking sleeve is under the action of the compressed locking spring, the conical hole surface of the locking sleeve is tightly matched with the conical surface on the locked part, and the locked part is limited to move upwards and five directions including front, back, left and right (downward movement limitation is realized by another locking mechanism with the same principle and is not described herein). When the locking actuating assembly needs to be unlocked, the driving rod moves upwards to drive the transmission rod to rotate around the pin shaft connected with the fixed seat, the two bulges on the transmission rod drive the connecting ring and the locking sleeve to move upwards to be separated from the locked part, and when the limiting matching part of the locking actuating assembly is contacted with the lower end surface of the limiting cylinder, namely the upper limiting table surface, complete unlocking is realized, and the locking spring is further compressed in 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 are 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 scope of the appended claims, and therefore the scope of the invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (5)

1. A locking device for a core component of a gravimeter, comprising: the locking device comprises a fixed support, a limiting assembly, a locking executing assembly, a locking spring and an unlocking assembly; the fixed bracket is provided with a limiting component mounting hole, and the limiting component is fixedly inserted in the limiting component mounting hole; the locking executing assembly is coaxially inserted into the central hole of the limiting assembly in an up-down movable mode; the center of the locking execution assembly is provided with a central through hole for the locking component to pass through, 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 of a conical hole structure and is matched with the shape of an outer conical surface on the locking component; a limiting 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 the upper end of the limiting assembly is fixedly provided with the pressure spring piece, so that the lower end of the locking spring is in downward pressing contact with the locking execution assembly along the axial direction; the unlocking assembly is connected below the fixed support and is in contact with the lower end part of the locking execution assembly;
when the unlocking assembly does not exert upward acting force, the locking execution assembly moves to a lower working position under the action of the locking spring; the limiting matching part is contacted with the lower limiting table board, 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 gravimeter is in a locking state;
when an upward acting force is applied to the unlocking assembly, the locking execution assembly moves to the upper working position; the limiting matching part is in contact with the upper limiting table board, so that the locking execution assembly and the limiting assembly form axial upper 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 gravimeter is in an unlocking state.
2. The locking device for a core component of a gravimeter according to claim 1, characterized in that: the limiting assembly consists of a limiting cylinder and an adjusting sleeve; the upper end of the limiting cylinder is provided with a flange part, and the wall of the outer cylinder is provided with an external thread; the adjusting sleeve is a sleeve body structure with an inner edge at the bottom end and a threaded hole 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 upper end surface of the inner edge of the adjusting sleeve forms the lower limiting table surface.
3. The locking device for a core component of a gravimeter according to claim 1, characterized in that: 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 outside the locking sleeve and inserted into a space between the upper limiting table board and the lower limiting table board to form the limiting matching part.
4. A locking device for a core of a gravimeter according to claim 3, characterized in that: the unlocking assembly comprises 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.
5. The locking device for a core component of a gravimeter according to claim 4, characterized in that: 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 in 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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KR101671390B1 (en) * 2016-08-16 2016-11-02 마이다스시스템주식회사 Stage leveling device for high performance mask aligner
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CN111287325A (en) * 2020-03-02 2020-06-16 朱世杰 A remove board house adjusting device for building engineering
CN111301666A (en) * 2020-03-13 2020-06-19 贺龙杰 Novel straight lifting retractable undercarriage
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CN111830587A (en) * 2020-06-22 2020-10-27 中国船舶重工集团公司第七0七研究所 Locking mechanism of gravimeter
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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KR101671390B1 (en) * 2016-08-16 2016-11-02 마이다스시스템주식회사 Stage leveling device for high performance mask aligner
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
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CN210316491U (en) * 2019-04-19 2020-04-14 国骅建设有限公司 Telescopic wall connecting piece
CN111287325A (en) * 2020-03-02 2020-06-16 朱世杰 A remove board house adjusting device for building engineering
CN111301666A (en) * 2020-03-13 2020-06-19 贺龙杰 Novel straight lifting retractable undercarriage
CN111830587A (en) * 2020-06-22 2020-10-27 中国船舶重工集团公司第七0七研究所 Locking mechanism of gravimeter
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
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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