CN111099488B - Lifting structure and lifting method of accelerometer - Google Patents
Lifting structure and lifting method of accelerometer Download PDFInfo
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- CN111099488B CN111099488B CN201811250287.8A CN201811250287A CN111099488B CN 111099488 B CN111099488 B CN 111099488B CN 201811250287 A CN201811250287 A CN 201811250287A CN 111099488 B CN111099488 B CN 111099488B
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- accelerometer
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- upper cover
- core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
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- Standing Axle, Rod, Or Tube Structures Coupled By Welding, Adhesion, Or Deposition (AREA)
Abstract
The invention provides a hoisting structure and a hoisting method of an accelerometer, wherein the hoisting structure comprises an upper cover and a base, the upper cover is used for limiting a flange plate, the base is used for limiting an accelerometer core, and the upper cover and the base are also provided with adjusting mechanisms for adjusting the relative positions of the flange plate and the accelerometer core; this structure can effectively avoid when the adhesive solidification expansion contraction to cause the influence to the product percent of pass, reduces twice glue filling, curing operation into one operation simultaneously, when promoting product assembly precision, practices thrift the assemble duration.
Description
Technical Field
The invention relates to the technical field of accelerometer assembly, in particular to a hoisting structure and a hoisting method of an accelerometer.
Background
The meter head of the quartz flexible accelerometer consists of a meter core and a flange plate, wherein the meter core provides an accelerometer measurement signal, and the flange plate provides an accelerometer mounting plane; the meter core is bonded in the annular flange plate in a suspension mode to form a meter head, the meter core and the flange plate are required to be reliably connected after being assembled, and the precision of the installation error angle meets the design requirement. In an ideal state, the actual sensitive axis of the accelerometer is coincident with the ideal sensitive axis. Due to the existence of the installation error angle, the difference exists between the acceleration sensed by the coordinate system of the accelerometer pendulum assembly and the acceleration received by the measured coordinate system, so that the system precision is influenced, and the measurement error is caused. With the increasing demand of the use system on the precision of the accelerometer, ensuring the consistency of the installation error angle in the assembling process and improving the precision of the installation error angle become important day by day.
Under the influence of a tool structure, the meter head hoisting sealing glue curing of the original accelerometer needs to be carried out in two steps, wherein before the first step of sealing glue curing, a hoisting tool and a testing device are needed to measure an installation error angle, the relative positions of the meter core and the flange plate are adjusted in a mode of clamping gaskets with different thicknesses, and the deviation between an actual sensitive axial direction and an ideal sensitive axial direction is reduced. After the first-step sealing glue is solidified, the installation error angle is detected by means of a hoisting tool and a testing device, the second-step sealing glue is carried out on the qualified gauge outfit semi-finished product, and the unqualified gauge outfit semi-finished product is repaired. Under the condition that the core and the flange are structurally fixed without a tool, the volume of the adhesive inevitably shrinks in the curing process, so that the installation error angle of the meter can be changed before and after the second-step glue sealing operation, the finished product yield of the accelerometer is low, the waste of manpower and material resources and the time delay are caused by a large amount of factory return maintenance, and the accuracy requirement of the user which is gradually increased can not be met.
Disclosure of Invention
The invention aims to solve the problems that in the prior art, the assembling precision of an accelerometer core and a flange plate is low and the requirements cannot be met, and provides a hoisting structure and a hoisting method of an accelerometer, which can effectively improve the assembling precision of the accelerometer core and the flange plate.
The utility model provides a hoisting structure of accelerometer, includes upper cover and base, the upper cover is used for carrying on spacingly to the ring flange, the base is used for carrying on spacingly to the accelerometer movement, still be provided with the adjustment mechanism who is used for adjusting ring flange and accelerometer movement relative position on upper cover and the base.
Furthermore, adjustment mechanism includes fastening screw and position adjustment packing ring, be provided with on upper cover and the base with the screw hole of fastening screw looks adaptation, still be provided with the recess on the screw hole of base, the position adjustment packing ring install in the recess, through the adjustment fastening screw adjusts the relative position of ring flange and accelerometer watch core.
Furthermore, the number of the fastening screws and the number of the position adjusting coils are four, and the upper cover and the base are respectively provided with four threaded holes.
Furthermore, the upper cover is ring-shaped, and the four threaded holes are formed in the end face of the ring-shaped upper cover and are uniformly distributed.
Furthermore, the flange plate is fixed with the end face of the upper cover through a flange plate fixing screw.
Furthermore, the base is a cylinder with openings at two ends, and four threaded holes are formed in the upper end face of the base and are evenly distributed.
Furthermore, a cantilever is arranged in the cylindrical base, a columnar boss is arranged at the center of the cantilever, and the central axis of the columnar boss is superposed with the central axis of the base;
the accelerometer core is fixed on the columnar boss through a core fixing screw and a core fixing washer.
Furthermore, a strip-shaped groove used for penetrating through the accelerometer core connecting line is formed in the side wall of the columnar boss.
A method for hoisting an accelerometer adopts the hoisting structure of the accelerometer to hoist the accelerometer, and comprises the following steps:
fixing the flange plate on the upper cover;
fixing an accelerometer core on a base;
buckling the upper cover and the base;
adjusting the relative positions of the flange plate and the accelerometer core through an adjusting mechanism until the hoisting depth and the installation error of the accelerometer core meet preset requirements;
filling a structural adhesive into a gap between the flange plate and the accelerometer core;
and after the structural adhesive is cured, separating the accelerometer from the upper cover and the base.
The lifting structure and the lifting method of the accelerometer provided by the invention can effectively avoid the influence of expansion and contraction on the product percent of pass when the adhesive is cured, and simultaneously reduce two times of glue filling and curing operations into one time of operation, thereby improving the assembly precision of the product and saving the assembly time.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of a hoisting structure of an accelerometer provided by the invention.
Fig. 2 is a top view of an embodiment of a hoisting structure of an accelerometer provided by the invention.
Fig. 3 is a bottom view of an embodiment of a hoisting structure of an accelerometer provided by the invention.
Fig. 4 is a flowchart of an embodiment of a method for hoisting an accelerometer according to the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example one
Referring to fig. 1 to 3, the present embodiment provides a hoisting structure for an accelerometer, including an upper cover 101 and a base 102, where the upper cover 101 is used to limit a flange 100, the base 102 is used to limit an accelerometer movement 200, and the upper cover 101 and the base 102 are further provided with an adjusting mechanism for adjusting the relative positions of the flange 100 and the accelerometer movement 200.
Further, the adjusting mechanism comprises a fastening screw 103 and a position adjusting washer 104, threaded holes matched with the fastening screw 103 are formed in the upper cover 101 and the base 102, a groove 105 is further formed in the threaded hole of the base 102, the position adjusting washer 104 is installed in the groove 105, and the relative position of the flange plate 100 and the accelerometer movement 200 is adjusted through adjusting the fastening screw 103.
As a preferred embodiment, the number of the fastening screws and the number of the position adjusting coils are four, the upper cover and the base are respectively provided with four threaded holes, and the four threaded holes of the base are respectively provided with four grooves.
Further, the upper cover 101 is circular, and four threaded holes are uniformly distributed on the end face of the circular upper cover.
Further, the flange 100 is fixed to an end surface of the upper cover 101 by a flange fixing screw 106.
Further, the base 102 is a cylinder with two open ends, and four threaded holes are uniformly distributed on the upper end surface of the base.
The relative positions of the flange plate and the accelerometer meter core are adjusted by uniformly distributing four fastening screws uniformly, so that the consistency of the flange plate 100 and the accelerometer meter core 200 in the central axis direction can be ensured.
Furthermore, a cantilever 107 is arranged in the cylindrical base 102, a columnar boss 108 is arranged at the center of the cantilever 107, and the central axis of the columnar boss 108 is overlapped with the central axis of the base 101;
the accelerometer core 200 is secured to the boss 108 by a core set screw 109 and a core set washer 110.
Further, a strip-shaped groove 111 for passing through a connecting line of the accelerometer core 200 is arranged on the side wall of the columnar boss 108.
Specifically, the flange plate 100 is fixed on the end face of the upper cover 101 through a flange plate fixing screw 106, the accelerometer movement 200 is fixed on the columnar boss 108 through a movement fixing screw 109 and a movement fixing gasket 110, the upper cover 101 and the base 102 are buckled, the fastening screw 103 is adjusted to adjust the relative position of the flange plate 100 and the accelerometer movement 200 until the hoisting depth and the installation error meet the requirements, the structural adhesive is filled into the gap between the flange plate 100 and the accelerometer movement 200, and after the structural adhesive is cured, the accelerometer is separated from the upper cover 101 and the base 102.
The hoisting structure of accelerometer that this embodiment provided can effectively avoid expansion and contraction to cause the influence to the product percent of pass when the adhesive solidification, reduces twice glue filling, curing operation into one operation simultaneously, when promoting product assembly precision, practices thrift the assemble duration.
Example two
Referring to fig. 4, this embodiment provides a method for hoisting an accelerometer, where the hoisting structure according to the first embodiment is used to hoist the accelerometer, and the method includes:
step S201, fixing a flange plate on the upper cover;
step S202, fixing an accelerometer core on a base;
step S203, buckling the upper cover and the base;
step S204, adjusting the relative positions of the flange plate and the accelerometer core through an adjusting mechanism until the hoisting depth and the installation error of the accelerometer core meet preset requirements;
step S205, filling a structural adhesive into a gap between the flange plate and the accelerometer core;
and S206, after the structural adhesive is cured, separating the accelerometer from the upper cover and the base.
For the concrete structure of the hoisting structure, please refer to embodiment one, which is not described herein again.
Specifically, referring to fig. 1 to 3, in step S201, the flange 100 is fixed to the end surface of the upper cover 101 by the flange fixing screws 106.
In step S202, the accelerometer core 200 is fixed on the pillar boss 108 of the base 102 by the core fixing screw 109 and the core fixing washer 110.
In step S204, the fastening screw 103 is adjusted to adjust the gap between the flange 100 and the accelerometer core 200 until the hoisting depth and the installation error meet the requirements.
The lifting method of the accelerometer provided by the embodiment can effectively avoid the influence of expansion and contraction on the product qualification rate when the adhesive is cured, reduces the two-time glue filling and curing operation into one-time operation, and saves the assembly time while improving the assembly precision of the product.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (6)
1. The hoisting structure of the accelerometer is characterized by comprising an upper cover and a base, wherein the upper cover is used for limiting a flange plate, the base is used for limiting an accelerometer core, and adjusting mechanisms for adjusting the relative positions of the flange plate and the accelerometer core are further arranged on the upper cover and the base;
the upper cover is in a circular ring shape, and four threaded holes are formed in the end face of the circular ring-shaped upper cover and are uniformly distributed; the flange plate is fixed with the end surface of the upper cover through a flange plate fixing screw;
a cantilever is arranged in the cylindrical base, a columnar boss is arranged at the center of the cantilever, and the central axis of the columnar boss is superposed with the central axis of the base;
the accelerometer core is fixed on the columnar boss through a core fixing screw and a core fixing washer.
2. The hoisting structure of the accelerometer according to claim 1, wherein the adjusting mechanism comprises a fastening screw and a position adjusting washer, the upper cover and the base are provided with threaded holes adapted to the fastening screw, the threaded holes of the base are further provided with grooves, the position adjusting washer is mounted in the grooves, and the relative positions of the flange and the accelerometer core are adjusted by adjusting the fastening screw.
3. The accelerometer hoisting structure of claim 2, wherein the number of the fastening screws and the position adjusting coils is four, the upper cover and the base are respectively provided with four threaded holes, and the four threaded holes of the base are respectively provided with four grooves.
4. The accelerometer lifting structure according to claim 1, wherein the base is cylindrical with two open ends, and four threaded holes are uniformly distributed on the upper end surface of the base.
5. The hoisting structure of the accelerometer according to claim 1, wherein the sidewall of the columnar boss is provided with a strip-shaped groove for passing through a connecting line of the accelerometer core.
6. A method for hoisting an accelerometer, wherein the accelerometer is hoisted by using the accelerometer hoisting structure of any one of claims 1-5, the method comprising:
fixing the flange plate on the upper cover;
fixing an accelerometer core on a base;
buckling the upper cover and the base;
adjusting the relative positions of the flange plate and the accelerometer core through an adjusting mechanism until the hoisting depth and the installation error of the accelerometer core meet preset requirements;
filling a structural adhesive into a gap between the flange plate and the accelerometer core;
and after the structural adhesive is cured, separating the accelerometer from the upper cover and the base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250287.8A CN111099488B (en) | 2018-10-25 | 2018-10-25 | Lifting structure and lifting method of accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811250287.8A CN111099488B (en) | 2018-10-25 | 2018-10-25 | Lifting structure and lifting method of accelerometer |
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| Publication Number | Publication Date |
|---|---|
| CN111099488A CN111099488A (en) | 2020-05-05 |
| CN111099488B true CN111099488B (en) | 2022-03-22 |
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| CN201811250287.8A Active CN111099488B (en) | 2018-10-25 | 2018-10-25 | Lifting structure and lifting method of accelerometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113945733B (en) * | 2021-10-25 | 2024-05-24 | 北京星箭长空测控技术股份有限公司 | Quartz accelerometer fixing device and fixing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102539835B (en) * | 2011-12-31 | 2014-01-15 | 航天科工惯性技术有限公司 | Control method for installation error angle of quartz flexible accelerometer |
| CN105171282A (en) * | 2015-09-10 | 2015-12-23 | 中国十九冶集团有限公司 | Converter shell mounting method |
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