CN110207880B - Multi-connecting-rod type inter-dimension decoupling two-dimensional wireless passive sensor - Google Patents
Multi-connecting-rod type inter-dimension decoupling two-dimensional wireless passive sensor Download PDFInfo
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- CN110207880B CN110207880B CN201910614120.3A CN201910614120A CN110207880B CN 110207880 B CN110207880 B CN 110207880B CN 201910614120 A CN201910614120 A CN 201910614120A CN 110207880 B CN110207880 B CN 110207880B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
Abstract
The invention discloses a multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor which comprises a sensor force-bearing connector, an upper supporting cylinder, an upper multi-connecting-rod connecting circular plate, a bending moment supporting circular plate, a bending moment force-bearing body, a bent rectangular variable ring, a lower multi-connecting-rod connecting circular plate, a first torque connecting circular plate, a lower supporting cylinder, a second torque connecting circular plate, a torque force-bearing shaft, a torque deformation sheet, a connecting rod, a central connecting rod sleeve, a torque limiting rod sleeve and a bending moment transmission rod. The multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor can simultaneously detect the bending force component and the torsion force component in the coupling force, namely, the coupling force is structurally decoupled; and does not need to be connected into a power supply line or collect data through a wired interface; the sensor can be applied to the medical field, the direction of the human body implanted sensor is greatly reduced, and the links that the sensor needs to be embedded in the human body or subjected to secondary operation after being implanted into the human body are greatly reduced.
Description
Technical Field
The invention belongs to the technical field of sensors, and particularly relates to a multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor.
Background
A sensor is a device and apparatus that can sense a predetermined measurement and convert it into a usable signal according to a certain rule, and is generally composed of a sensing element and an elastic element. The multi-dimensional force sensor is a force measuring sensor capable of measuring more than two directions of force and moment information at the same time, and is widely applied to the fields of robots, bioengineering, industrial manufacturing, medical treatment and health care and the like.
Two-dimensional and even multidimensional force sensors at the present stage are mainly divided into resistance strain type, piezoelectric type and capacitance type force sensors, and the two-dimensional and even multidimensional force sensors are simple in structure, sensitive and high in precision. The sensor is constructed by attaching or otherwise mounting a strain sensitive element to a shaped elastic element. When the mechanical quantity acts on the elastic element, the elastic element deforms, the resistance value of the strain sensitive element changes, then the change of the resistance value is changed into the change of the voltage by the conversion circuit, and the output is changed, and the force can be obtained according to the change of the voltage.
However, when the sensor is subjected to a combination of torsional stress and bending stress, the sensor in the prior art often compensates and decouples by forming the strain gauge into a bridge circuit, and the decoupling capability of the torsional stress and the bending stress is not realized in a mechanical structure.
The existing two-dimensional/multidimensional sensor has the defects that the strain gauge is connected by using a lead, and even if radio is adopted for information transmission, the electric quantity contained in a battery is limited, so that long-term dynamic monitoring is difficult to realize.
Disclosure of Invention
The invention aims to provide a multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor, which realizes mechanical decoupling, can measure a coupling force formed by a bending force and a torsion force vertical to the axial direction, and solves the problems of the bending component force vertical to the axial direction in the coupling force and the torsion component force in the coupling force respectively.
The technical scheme adopted by the invention for solving the technical problems is as follows: a multi-connecting rod type inter-dimensional decoupling two-dimensional wireless passive sensor comprises a sensor force bearing connector, an upper supporting cylinder, an upper multi-connecting rod connecting circular plate, a bending moment supporting circular plate, a bending moment force bearing body, a bent rectangular variable ring, a lower multi-connecting rod connecting circular plate, a first torque connecting circular plate, a lower supporting cylinder, a second torque connecting circular plate, a torque force bearing shaft, a torque deformation sheet, a connecting rod, a center connecting rod sleeve, a torque limiting rod sleeve and a bending moment transmission rod;
the sensor force bearing joint is fixed on the upper multi-connecting-rod connecting circular plate through an upper supporting cylinder; a bending moment supporting circular plate is fixed between the upper supporting cylinder and the upper multi-connecting-rod connecting circular plate;
the bending moment supporting circular plate is provided with a central hole along the axis direction, and the upper end of the bending moment supporting circular plate is provided with an external chamfer surface; the bending moment bearing body comprises a cylinder and a flange formed at the upper end of the cylinder, the lower end of the cylinder is slidably inserted into a central hole of the bending moment supporting circular plate, a transition ring is arranged at the joint of the cylinder and the flange, and an inclined surface is formed on the transition ring;
a bent rectangular variable ring is sleeved outside the bending moment force bearing body, the lower end of the bent rectangular variable ring is in contact with the outer chamfer surface, and the upper end of the bent rectangular variable ring is in contact with the inclined surface of the transition ring; a plurality of magnetostrictive materials are adhered on the outer side wall of the bent rectangular variable ring;
the lower multi-connecting-rod connecting circular plate and the second torque connecting circular plate are fixed, and a first torque connecting circular plate and a lower supporting cylinder are sequentially fixed between the lower multi-connecting-rod connecting circular plate and the second torque connecting circular plate from top to bottom;
an upper flange part and a lower flange part are formed on the torque bearing shaft, the upper end of the torque bearing shaft penetrates through the first torque connecting circular plate, the lower end of the torque bearing shaft penetrates through the second torque connecting circular plate, and the torque bearing shaft is rotatably arranged between the first torque connecting circular plate and the second torque connecting circular plate;
the upper end of the connecting rod is fixed on the upper flange part, the lower end of the connecting rod is fixed on the lower flange part, and the connecting rod is parallel to the axis of the torque bearing shaft;
the upper end of the torque deformation sheet is fixed to the first torque connecting circular plate, and the lower end of the torque deformation sheet is fixed to the second torque connecting circular plate and is parallel to the axis of the torque bearing shaft;
the distance between the torque deformation sheet and the torque bearing shaft is smaller than the sum of the distance between the torque bearing shaft and the connecting rod and the radius of the connecting rod, and the torque deformation sheet is covered with a magnetostrictive material;
the centers of the upper multi-connecting-rod connecting circular plate and the lower multi-connecting-rod connecting circular plate are both provided with central counter bores, copper beads with holes are arranged in the central counter bores, and one end of the central connecting rod sleeve penetrates through the bottom wall of the central counter bore of the lower multi-connecting-rod connecting circular plate and is fixed on the copper beads with holes; the upper end of the central connecting rod sleeve is provided with a guide hole, the lower end of the central connecting rod is slidably arranged in the guide hole, and the upper end of the central connecting rod penetrates through the bottom wall of a central counter bore of the upper multi-connecting-rod connecting circular plate and is fixed on a copper bead with a hole;
the periphery of the central counter bore of the upper multi-connecting-rod connecting circular plate is provided with a plurality of edge counter bores, the periphery of the central counter bore of the lower multi-connecting-rod connecting circular plate is provided with a plurality of edge through holes, the lower end of the torque limiting rod sleeve is fixed in the edge through holes, the upper end of the torque limiting rod sleeve is provided with a guide hole, the lower end of the torque limiting rod is slidably arranged in the guide hole of the torque limiting rod sleeve, and the upper end of the torque limiting rod penetrates through the bottom wall of the edge counter bore of the upper multi-connecting-rod connecting circular plate and is fixed on a copper bead with holes;
the flange of the bending moment bearing body is provided with 6 through holes, and the 6 through holes are uniformly distributed along the axis of the bending moment bearing body; the upper multi-connecting-rod connecting circular plate is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body, and the bending moment supporting circular plate is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body;
one end of the bending moment transmission rod is connected with the lower multi-connecting-rod connecting circular plate, and the other end of the bending moment transmission rod penetrates through the through hole of the upper multi-connecting-rod connecting circular plate, the through hole of the bending moment supporting circular plate and the through hole of the bending moment bearing body and is connected with the bending moment bearing body.
Optionally, a plurality of through holes are formed in the upper supporting cylinder along the axis direction of the upper supporting cylinder, the stud bolts penetrate through the sensor force bearing connector, the upper supporting cylinder, the bending moment supporting circular plate and the upper multi-connecting-rod connecting circular plate, and the sensor force bearing connector, the upper supporting cylinder, the bending moment supporting circular plate and the upper multi-connecting-rod connecting circular plate are fixed together through nuts.
Optionally, the stud bolt sequentially penetrates through the lower multi-link connecting circular plate, the first torque connecting circular plate, the lower supporting cylinder and the second torque connecting circular plate, and the lower multi-link connecting circular plate, the first torque connecting circular plate, the lower supporting cylinder and the second torque connecting circular plate are fixed together by a nut.
Optionally, a groove for accommodating the upper flange portion is formed in the lower surface of the first torque connection circular plate, a groove for accommodating the lower flange portion is formed in the upper surface of the second torque connection circular plate, the upper flange portion is disposed in the groove of the first torque connection circular plate, and the lower flange portion is disposed in the groove of the second torque connection circular plate.
Optionally, a plane passing through the axis of the torque bearing shaft and the center line of the torque deformation sheet is perpendicular to a plane where the torque deformation sheet is located.
Optionally, the moment of torsion deformation piece is including setting up in the fixed part of two tip on the width direction and setting up the deformation portion between two fixed parts, the fixed part passes through the fix with screw and connects plectane and second moment of torsion and connect the plectane, a plurality of round holes have been seted up on the deformation portion, the deformation portion coats and is stamped the magnetostrictive material.
The invention has the following beneficial effects: the multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor can simultaneously detect the bending force component and the torsion force component in the coupling force, namely, the coupling force is structurally decoupled; and does not need to be connected into a power supply line or collect data through a wired interface; the sensor can be applied to the medical field, the direction of the human body implanted sensor is greatly reduced, and the links that the sensor needs to be embedded in the human body or subjected to secondary operation after being implanted into the human body are greatly reduced.
Drawings
Fig. 1 is a schematic perspective view of a multi-link type inter-dimension decoupling two-dimensional wireless passive sensor according to the present invention.
Fig. 2 is a perspective structural sectional view of the multi-link type inter-dimension decoupling two-dimensional wireless passive sensor of the invention.
Fig. 3 is an explosion structure diagram of the multi-link type inter-dimension decoupling two-dimensional wireless passive sensor of the invention.
FIG. 4 is an exploded perspective view of a bending force sensitive area according to the present invention
Fig. 5 is a perspective sectional view of a bending force sensitive area of the present invention.
Fig. 6 is an exploded view of the torsion force sensitive area three-dimensional structure component of the present invention.
Fig. 7 is a perspective sectional view of a torsional force sensitive area of the present invention.
The notation in the figures means: 1-sensor force bearing joint; 2-an upper support cylinder; 3-bending moment bearing body; 4-bending the rectangular variable ring; 5-bending moment supporting circular plate; 6-connecting the upper multi-connecting-rod with a circular plate; 7-sealing a cap with a copper bead; 8-bending moment transfer rod; 9-torque limiting rod; 10-a central connecting rod; 11-a central connecting rod sleeve; 12-torque limit rod sleeve; 13-lower multi-link connecting circular plate; 14-a first torque connection circular plate; 15-torque deformation piece; 16-torque bearing shaft; 17-a connecting rod; 18-a lower support cylinder; 19-a second torque connection circular plate; 20-copper beads with holes.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
The embodiment provides a multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor which comprises a sensor force-bearing connector, an upper supporting cylinder, an upper multi-connecting-rod connecting circular plate, a bending moment supporting circular plate, a bending moment force-bearing body, a bent rectangular variable ring, a lower multi-connecting-rod connecting circular plate, a first torque connecting circular plate, a lower supporting cylinder, a second torque connecting circular plate, a torque force-bearing shaft, a torque deformation sheet, a connecting rod, a central connecting rod sleeve, a torque limiting rod sleeve and a bending moment transmission rod, wherein the sensor force-bearing connector is arranged on the upper supporting cylinder;
the sensor force bearing joint 1 is fixed on the upper multi-connecting-rod connecting circular plate 6 through an upper supporting cylinder 2; a bending moment supporting circular plate 5 is fixed between the upper supporting cylinder 2 and the upper multi-connecting-rod connecting circular plate 6; as an implementation form, a plurality of through holes are formed in the upper supporting cylinder 2 along the axis direction, stud bolts penetrate through the sensor force-bearing connector 1, the upper supporting cylinder 2, the bending moment supporting circular plate 5 and the upper multi-link connecting circular plate 6, and the sensor force-bearing connector 1, the upper supporting cylinder 2, the bending moment supporting circular plate 5 and the upper multi-link connecting circular plate 6 are fixed together through nuts.
A central hole is formed in the bending moment support circular plate 5 along the axis direction of the bending moment support circular plate, and an external chamfer surface is formed at the upper end of the bending moment support circular plate 5; the bending moment bearing body 3 comprises a cylinder and a flange formed at the upper end of the cylinder, the lower end of the cylinder can be slidably inserted into the central hole of the bending moment support circular plate 5, a transition ring is arranged at the joint of the cylinder and the flange, and an inclined surface is formed on the transition ring.
The outside cover of moment of flexure bearing body 3 is equipped with curved rectangle change ring 4, curved rectangle change ring 4 the lower extreme with outer chamfer face contact, curved rectangle change ring 4 the upper end with the surface contact of the slope of transition ring, in order to pass through moment of flexure bearing body 3's action makes curved rectangle change ring 4 takes place deformation, detects whether decoupling zero two-dimensional wireless passive sensor bears the moment of flexure between the shower nozzle dimension, at this moment, it has a plurality of magnetostrictive material to paste on the lateral wall of curved rectangle change ring 4.
The lower multi-link connecting circular plate 13 is fixed to a second torque connecting circular plate 19, and a first torque connecting circular plate 14 and a lower support cylinder 18 are sequentially fixed from top to bottom between the lower multi-link connecting circular plate 13 and the second torque connecting circular plate 19;
as one implementation form, stud bolts may be used to sequentially penetrate through the lower multi-link connecting circular plate 13, the first torque connecting circular plate 14, the lower support cylinder 18, and the second torque connecting circular plate 19, and the lower multi-link connecting circular plate 13, the first torque connecting circular plate 14, the lower support cylinder 18, and the second torque connecting circular plate 19 are fixed together by nuts.
The torque bearing shaft 16 is formed with an upper flange portion and a lower flange portion, a groove for receiving the upper flange portion is formed on a lower surface of the first torque connecting circular plate 14, a groove for receiving the lower flange portion is formed on an upper surface of the second torque connecting circular plate 19, and the upper end of the torque bearing shaft 16 passes through the first torque connecting circular plate 14, the lower end of the torque bearing shaft 16 passes through the second torque connecting circular plate 19 and is rotatably disposed between the first torque connecting circular plate 14 and the second torque connecting circular plate 19, at this time, the upper flange portion is disposed in the groove of the first torque connecting circular plate 14, and the lower flange portion is disposed in the groove of the second torque connecting circular plate 19.
The upper end of the connecting rod 17 is fixed on the upper flange part, the lower end of the connecting rod 17 is fixed on the lower flange part, and the connecting rod 17 is parallel to the axis of the torque bearing shaft 16; preferably, the number of the connecting rods 17 is two, and the two connecting rods 17 are uniformly distributed along a cylindrical surface taking the axis of the torque bearing shaft as a center line, that is, the two connecting rods 17 are arranged at an interval of 180 degrees taking the axis of the torque bearing shaft 16 as a center.
The upper end of the torque deformation piece 15 is fixed to the first torque connection circular plate 14, and the lower end of the torque deformation piece is fixed to the second torque connection circular plate 19, that is, the torque deformation piece 15 is disposed between the first torque connection circular plate 14 and the second torque connection circular plate 19 and is parallel to the axis of the torque bearing shaft 16; more preferably, a plane passing through the axis of the torque bearing shaft and the center line of the torque deformation sheet 15 is perpendicular to the plane of the torque deformation sheet 15.
The moment of torsion deformation piece 15 with the distance between the moment of torsion bearing axle 16 be less than moment of torsion bearing axle with distance between the connecting rod 17 and the radius sum of connecting rod 17, that is to say, when moment of torsion bearing axle 16 drives the connecting rod 17 motion, take place to interfere between connecting rod 17 and the moment of torsion deformation piece 15 for moment of torsion deformation piece 15 takes place to warp, this moment of torsion deformation piece 15 coats and is stamped the magnetostrictive material to the torsional force that deformation detection sensor through the magnetostrictive material bore has solved long-term dynamic monitoring's problem.
Preferably, the number of the torque deformation pieces 15 is two, and the two torque deformation pieces 15 are arranged at an interval of 180 ° around the axis of the torque bearing shaft 16.
The torque deformation sheet 15 includes fixing portions provided at both ends in the width direction and a deformation portion provided between the two fixing portions, the fixing portions are fixed to the first torque connection circular plate 14 and the second torque connection circular plate 19 by screws, and the deformation portion is provided with a plurality of circular holes to reduce the rigidity of the deformation portion, so that the deformation portion is easily deformed; in this embodiment, the number of the round holes is 7, and the deformation portion is covered with a magnetostrictive material, so that the problem of long-term dynamic monitoring is solved.
The centers of the upper multi-connecting-rod connecting circular plate 6 and the lower multi-connecting-rod connecting circular plate 13 are both provided with central counter bores (the opening of the central counter bore of the upper multi-connecting-rod connecting circular plate 6 is upward, the opening of the central counter bore of the lower multi-connecting-rod connecting circular plate is downward), the central counter bores are internally provided with copper beads with holes, and one end of the central connecting rod sleeve 11 penetrates through the bottom wall of the central counter bore of the lower multi-connecting-rod connecting circular plate 13 and is fixed on the copper beads with holes; the upper end of the central connecting rod sleeve 11 is provided with a guide hole, the lower end of the central connecting rod 10 is slidably arranged in the guide hole, and the upper end of the central connecting rod 10 penetrates through the bottom wall of the central counter bore of the upper multi-connecting-rod connecting circular plate 6 and is fixed on a copper bead with a hole.
The periphery of the central counter bore of the upper multi-link connecting circular plate 6 is provided with a plurality of edge counter bores, the periphery of the central counter bore of the lower multi-link connecting circular plate 13 is provided with a plurality of edge through holes, the lower end of the torque limiting rod sleeve 12 is fixed in the edge through holes, the upper end of the torque limiting rod sleeve 12 is provided with a guide hole, the lower end of the torque limiting rod 9 is slidably arranged in the guide hole of the torque limiting rod sleeve 12, and the upper end of the torque limiting rod 9 penetrates through the bottom wall of the edge counter bore of the upper multi-link connecting circular plate 6 and is fixed on a copper bead with holes.
The flange of the bending moment bearing body 3 is provided with 6 through holes, and the 6 through holes are uniformly distributed along the axis of the bending moment bearing body 3; the upper multi-connecting-rod connecting circular plate 6 is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body 3, and the bending moment supporting circular plate 5 is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body 3.
One end of the bending moment transmission rod 8 is connected with the lower multi-connecting-rod connecting circular plate 13, and the other end of the bending moment transmission rod passes through the through hole of the upper multi-connecting-rod connecting circular plate 6, the through hole of the bending moment supporting circular plate 5 and the through hole of the bending moment bearing body 3 and is connected with the bending moment bearing body 3.
Preferably, a first counter bore is formed in the lower multi-link connecting circular plate 13, a copper bead with holes is arranged in the first counter bore, and the lower end of the bending moment transmission rod 8 passes through the bottom wall of the first counter bore of the lower multi-link connecting circular plate 13 (the opening of the first counter bore is downward) and is fixed to the copper bead with holes; more preferably, the upper end of the bending moment transmission rod 8 passes through a through hole of the bending moment bearing body 3 and is fixed on the copper bead with the hole.
More preferably, the central counter bore, the edge counter bore and the first counter bore are all provided with a sealing cap, so that the movement of the copper beads with holes along the vertical direction (the height direction of the multi-link type inter-dimension decoupling two-dimensional wireless passive sensor) is limited by the sealing cap, and the sealing cap and the copper beads with holes can slide relatively.
When the multi-link type inter-dimension decoupling two-dimensional wireless passive sensor is subjected to torsional force, bending moment component force in coupling force is transmitted to the first torque connecting circular plate 14 and the second torque connecting circular plate 19 through the upper flange part and the lower flange part of the torque bearing shaft 16; the torsion force enables the torque bearing shaft 16 to rotate, further enables the connecting rod 17 to drive the torque deformation sheet 15 to deform, meets the requirement of single-direction stress on the torque deformation sheet 15, and ensures the measurement accuracy of the multi-connecting-rod type inter-dimensional decoupling two-dimensional wireless passive sensor; the magnetostrictive inverse effect (Villari effect) is generated under the action of the applied excitation magnetic field, and the torsional stress can be obtained by detecting the change of the magnetic field through the detection coil.
When the multi-connecting-rod type inter-dimension decoupling two-dimensional wireless passive sensor is subjected to bending component force, the upper multi-connecting-rod connecting circular plate 6, the torque limiting rod 9, the central connecting rod 10, the central connecting rod sleeve 11, the torque limiting rod sleeve 12 and the lower multi-connecting-rod connecting circular plate 13 form a supporting structure, and bending force is converted into axial tension and directly applied to the bending moment transmission rod 8; when the bending moment transmission rod 8 is subjected to tensile force, the bending moment deformation ring 4 is deformed, so that the bending component force is detected.
In addition, in this embodiment, the copper beads 20 with holes are placed in the central counter bore, the side counter bore and the first counter bore, and because the inner diameter of the hole is large and the opening of the outlet position is small, a simple multi-link bearing is formed, so that a certain moving angle is satisfied.
When the bending moment transmission rod 8 is acted by the torsional component, the torsional component does not affect the bending moment deformation ring 4 because of the limiting structure consisting of the torque limiting rod 9, the center connecting rod 10, the center connecting rod sleeve 11 and the torque limiting rod sleeve 12, the magnetostrictive material is covered on the bending moment deformation ring 4, and the bending component in the coupling force can generate stress strain on the magnetostrictive material. The effect of the applied excitation magnetic field generates a magnetostriction inverse effect (Villari effect), and the magnetic field change is detected by the detection coil to obtain the bending stress.
When the bending force is coupled with the torsion force, the bending force and the torsion force coupled enable the bending moment deformation ring 4 and the torque deformation sheet 15 to generate stress strain simultaneously, the magnetostrictive material generates stress, the magnetostrictive inverse effect is generated under the action of an applied excitation magnetic field, and the magnetic field change is detected through the detection coil, so that the combined detection of the bending stress and the torsion stress can be realized.
The sequence of the above embodiments is only for convenience of description and does not represent the advantages and disadvantages of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. A multi-connecting rod type inter-dimensional decoupling two-dimensional wireless passive sensor is characterized by comprising a sensor force bearing connector, an upper supporting cylinder, an upper multi-connecting rod connecting circular plate, a bending moment supporting circular plate, a bending moment force bearing body, a bent rectangular variable ring, a lower multi-connecting rod connecting circular plate, a first torque connecting circular plate, a lower supporting cylinder, a second torque connecting circular plate, a torque force bearing shaft, a torque deformation sheet, a connecting rod, a central connecting rod sleeve, a torque limiting rod sleeve and a bending moment transmission rod;
the sensor force bearing joint is fixed on the upper multi-connecting-rod connecting circular plate through an upper supporting cylinder; a bending moment supporting circular plate is fixed between the upper supporting cylinder and the upper multi-connecting-rod connecting circular plate;
the bending moment supporting circular plate is provided with a central hole along the axis direction, and the upper end of the bending moment supporting circular plate is provided with an external chamfer surface; the bending moment bearing body comprises a cylinder and a flange formed at the upper end of the cylinder, the lower end of the cylinder is slidably inserted into a central hole of the bending moment supporting circular plate, a transition ring is arranged at the joint of the cylinder and the flange, and an inclined surface is formed on the transition ring;
a bent rectangular variable ring is sleeved outside the bending moment force bearing body, the lower end of the bent rectangular variable ring is in contact with the outer chamfer surface, and the upper end of the bent rectangular variable ring is in contact with the inclined surface of the transition ring; a plurality of magnetostrictive materials are adhered on the outer side wall of the bent rectangular variable ring;
the lower multi-connecting-rod connecting circular plate and the second torque connecting circular plate are fixed, and a first torque connecting circular plate and a lower supporting cylinder are sequentially fixed between the lower multi-connecting-rod connecting circular plate and the second torque connecting circular plate from top to bottom;
an upper flange part and a lower flange part are formed on the torque bearing shaft, the upper end of the torque bearing shaft penetrates through the first torque connecting circular plate, the lower end of the torque bearing shaft penetrates through the second torque connecting circular plate, and the torque bearing shaft is rotatably arranged between the first torque connecting circular plate and the second torque connecting circular plate;
the upper end of the connecting rod is fixed on the upper flange part, the lower end of the connecting rod is fixed on the lower flange part, and the connecting rod is parallel to the axis of the torque bearing shaft;
the upper end of the torque deformation sheet is fixed to the first torque connecting circular plate, and the lower end of the torque deformation sheet is fixed to the second torque connecting circular plate and is parallel to the axis of the torque bearing shaft;
the distance between the torque deformation sheet and the torque bearing shaft is smaller than the sum of the distance between the torque bearing shaft and the connecting rod and the radius of the connecting rod, and the torque deformation sheet is covered with a magnetostrictive material;
the centers of the upper multi-connecting-rod connecting circular plate and the lower multi-connecting-rod connecting circular plate are both provided with central counter bores, copper beads with holes are arranged in the central counter bores, and one end of the central connecting rod sleeve penetrates through the bottom wall of the central counter bore of the lower multi-connecting-rod connecting circular plate and is fixed on the copper beads with holes; the upper end of the central connecting rod sleeve is provided with a guide hole, the lower end of the central connecting rod is slidably arranged in the guide hole, and the upper end of the central connecting rod penetrates through the bottom wall of a central counter bore of the upper multi-connecting-rod connecting circular plate and is fixed on a copper bead with a hole;
the periphery of the central counter bore of the upper multi-connecting-rod connecting circular plate is provided with a plurality of edge counter bores, the periphery of the central counter bore of the lower multi-connecting-rod connecting circular plate is provided with a plurality of edge through holes, the lower end of the torque limiting rod sleeve is fixed in the edge through holes, the upper end of the torque limiting rod sleeve is provided with a guide hole, the lower end of the torque limiting rod is slidably arranged in the guide hole of the torque limiting rod sleeve, and the upper end of the torque limiting rod penetrates through the bottom wall of the edge counter bore of the upper multi-connecting-rod connecting circular plate and is fixed on a copper bead with holes;
the flange of the bending moment bearing body is provided with 6 through holes, and the 6 through holes are uniformly distributed along the axis of the bending moment bearing body; the upper multi-connecting-rod connecting circular plate is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body, and the bending moment supporting circular plate is provided with a through hole at a position corresponding to the through hole of the bending moment bearing body;
one end of the bending moment transmission rod is connected with the lower multi-connecting-rod connecting circular plate, and the other end of the bending moment transmission rod penetrates through the through hole of the upper multi-connecting-rod connecting circular plate, the through hole of the bending moment supporting circular plate and the through hole of the bending moment bearing body and is connected with the bending moment bearing body.
2. The multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor according to claim 1, wherein a plurality of through holes are formed in the upper support cylinder along the axial direction of the upper support cylinder, stud bolts penetrate through the sensor force-bearing joint, the upper support cylinder, the bending moment support circular plate and the upper multi-link connection circular plate, and the sensor force-bearing joint, the upper support cylinder, the bending moment support circular plate and the upper multi-link connection circular plate are fixed together through nuts.
3. The multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor according to claim 1, wherein a stud bolt sequentially penetrates through the lower multi-link connection circular plate, the first torque connection circular plate, the lower support cylinder and the second torque connection circular plate, and the lower multi-link connection circular plate, the first torque connection circular plate, the lower support cylinder and the second torque connection circular plate are fixed together through a nut.
4. The multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor according to claim 1, wherein a groove for receiving the upper flange portion is formed on a lower surface of the first torque connection circular plate, a groove for receiving the lower flange portion is formed on an upper surface of the second torque connection circular plate, the upper flange portion is disposed in the groove of the first torque connection circular plate, and the lower flange portion is disposed in the groove of the second torque connection circular plate.
5. The multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor according to claim 1, wherein a plane passing through a shaft axis of the torque bearing shaft and a center line of the torque deformation sheet is perpendicular to a plane where the torque deformation sheet is located.
6. The multi-link type inter-dimensional decoupling two-dimensional wireless passive sensor according to claim 1, wherein the torque deformation sheet comprises fixing portions disposed at two ends in a width direction and a deformation portion disposed between the two fixing portions, the fixing portions are fixed to the first torque connection circular plate and the second torque connection circular plate through screws, the deformation portion is provided with a plurality of circular holes, and the deformation portion is covered with a magnetostrictive material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910614120.3A CN110207880B (en) | 2019-07-09 | 2019-07-09 | Multi-connecting-rod type inter-dimension decoupling two-dimensional wireless passive sensor |
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| CN201910614120.3A CN110207880B (en) | 2019-07-09 | 2019-07-09 | Multi-connecting-rod type inter-dimension decoupling two-dimensional wireless passive sensor |
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| CN110207880A CN110207880A (en) | 2019-09-06 |
| CN110207880B true CN110207880B (en) | 2020-10-23 |
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| CN112067186B (en) * | 2020-08-24 | 2021-09-24 | 东北电力大学 | Tower type series inter-dimensional decoupling wireless passive sensor |
| CN112067187B (en) * | 2020-08-26 | 2021-10-26 | 东北电力大学 | Coupling type three-dimensional decoupling wireless passive sensor |
| CN112082687B (en) * | 2020-08-26 | 2021-12-14 | 东北电力大学 | Inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112033595B (en) * | 2020-08-26 | 2021-08-31 | 东北电力大学 | Central shaft type inter-dimensional decoupling three-dimensional wireless passive sensor |
| CN112683438B (en) * | 2020-12-30 | 2021-11-16 | 东北电力大学 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
| CN112729655B (en) * | 2020-12-30 | 2022-02-01 | 东北电力大学 | Straight-tube T-shaped inter-dimensional decoupling three-dimensional wireless passive sensor |
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