CN112683438B - Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage - Google Patents
Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage Download PDFInfo
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Abstract
The invention discloses a spherical cage semi-axis type inter-dimension decoupling two-dimensional wireless passive sensor, which comprises: the sensor comprises a sensor force-bearing connector, a bending-torsion separating slide block, a bending-torsion support rod, a bending moment center support ball-head threaded rod, a first bending moment transmission rod, a second bending moment transmission rod, a third bending moment transmission rod, a bending moment bearing body, a bending moment support plate, a torque force-bearing ring, a bending moment transmission support rod, an upper support cylinder, a bending moment deformation body, a torque force-bearing shaft, a torque transmission rod, a first support circular plate, a torque deformation body, a lower support cylinder and a second support circular plate. The invention can simultaneously detect the bending force component and the torsion force component in the coupling force, namely, the structural decoupling is carried out on the coupling force; 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 fields of machine tools, robots and medicine, the direction of the human body implanted sensor is reduced, and the links of various wired transmission, wire embedding in the human body or secondary operation are greatly reduced when the sensor is applied.
Description
Technical Field
The invention belongs to the technical field of sensors, and particularly relates to a spherical cage semi-axis 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 intelligent machines, bioengineering, industrial manufacturing, medical treatment and health care and the like.
However, the two-dimensional and even multidimensional force and moment sensors in the prior art are mainly classified into resistance strain type, piezoelectric type and capacitance type force sensors, and the two-dimensional and even multidimensional force and moment 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 the electric quantity contained in a battery is limited even if radio is adopted for information transmission, so that the signal change is difficult to realize dynamic monitoring for a long time.
Disclosure of Invention
The invention aims to provide a two-dimensional wireless passive sensor for ball cage semi-axis type inter-dimensional decoupling, which realizes mechanical decoupling, can measure coupling force formed by bending force and torsional force vertical to the axial direction, and solves the problems of bending component force vertical to the axial direction in coupling force and torsional component force in the coupling force respectively.
The technical scheme adopted by the invention for solving the technical problems is as follows: a ball cage semi-axis type inter-dimension decoupling two-dimensional wireless passive sensor comprises: the bending moment center support device comprises a sensor force-bearing connector, a bending moment separation sliding block, a bending moment support rod, a bending moment center support ball-head threaded rod, a first bending moment transmission rod, a second bending moment transmission rod, a third bending moment transmission rod, a bending moment bearing body, a bending moment support plate, a torque force-bearing ring, a bending moment transmission support rod, an upper support cylinder, a bending moment deformation body, a torque force-bearing shaft, a torque transmission rod, a first support circular plate, a torque deformation body, a lower support cylinder and a second support circular plate;
the sensor force bearing joint is connected with the upper ball head of the bending moment center support ball head threaded rod; the bending and twisting support rod is fixed on the sensor force bearing joint, and a bending and twisting separation sliding block and a first bending moment transmission rod are sleeved on the bending and twisting support rod;
the torque bearing ring is provided with a central hole, a through groove is formed along the radial direction of the torque bearing ring, the lower end of the sensor bearing joint is arranged in the central hole, and the inner diameter of the central hole of the torque bearing ring is larger than the diameter of the lower end of the sensor bearing joint; when the bending support rod is positioned in the through groove, the outer wall of the bending separation sliding block is in contact with the inner wall of the through groove of the torque bearing ring;
a sliding groove is formed in the upper end of the first bending moment transmission rod along the vertical direction, and the bending and twisting support rod penetrates through the sliding groove of the first bending moment transmission rod and can slide up and down in the sliding groove; the first bending moment transmission rod is not contacted with the inner wall of the through groove of the torque bearing ring;
the bending moment center support ball head threaded rod penetrates through the bending moment support plate and is fixed on the bending moment support plate;
the lower end of the first bending moment transmission rod is hinged with one end of the second bending moment transmission rod, and the middle part of the second bending moment transmission rod is hinged with the bending moment transmission support rod; the other end of the second bending moment transmission rod is hinged with the upper end of the third bending moment transmission rod, and the lower end of the third bending moment transmission rod is hinged with the side part of the bending moment bearing body; the lower end of the bending moment center support ball head threaded rod is fixed on the bending moment bearing body; the bending moment transmission supporting rod is fixed on the bending moment supporting plate;
the lower end of the bending moment bearing body is fixed at the upper end of the bending moment deformation body, the lower end of the bending moment deformation body is fixed on the torque bearing shaft, and magnetostrictive materials are adhered to the side wall of the bending moment deformation body;
the torque bearing ring is fixed on the bending moment support plate, the lower end of the torque bearing ring is fixed at the upper end of the upper support cylinder, and the lower end of the upper support cylinder is fixed on the torque bearing shaft;
the lower end of the torque bearing shaft is sleeved with the torque transmission rod, and the torque transmission rod is fixed on the torque bearing shaft;
the torque bearing shaft is also sleeved with the first supporting circular plate, and the first supporting circular plate is positioned between the torque transmission rod and the shaft end face of the torque bearing shaft so as to limit the axial position of the first supporting circular plate through the upper surface of the torque transmission rod and the shaft end face of the torque bearing shaft;
the first supporting circular plate is fixed at the upper end of the lower supporting cylinder, and the lower end of the lower supporting cylinder is fixed at the second supporting circular plate;
the torque transmission rod is provided with at least two elongated holes, the lower end of the torque deformation body is fixed to the second supporting circular plate, the upper end of the torque deformation body penetrates through the elongated holes of the torque transmission rod, and magnetostrictive materials are adhered to the side wall of the torque deformation body.
Optionally, a containing groove is formed in the lower surface of the sensor force-bearing joint, and the upper ball head of the bending moment center support ball head threaded rod is arranged in the containing groove of the sensor force-bearing joint.
Optionally, three threaded holes are formed in the sensor force-bearing joint, an axial lead of the threaded hole of the sensor force-bearing joint is perpendicularly intersected with an axial lead of the sensor force-bearing joint, and the crankle supporting rod is fixed in the threaded hole.
Optionally, a center blind hole is formed in the bending moment bearing body, and the lower end of the bending moment center support ball head threaded rod is inserted into the center blind hole of the bending moment bearing body.
Optionally, a through hole is formed in the bending moment support plate, the upper end of the bending moment transmission support rod is a threaded section, the upper end of the bending moment transmission support rod penetrates through the bending moment support plate, and the bending moment transmission support rod is fixed to the bending moment support plate through a screw.
Optionally, three notches are formed in the bending moment support plate, the three notches are arranged at intervals of 120 degrees around the axis of the sensor force bearing joint, and the lower end of the first bending moment transmission rod penetrates through the notches and is located below the bending moment support plate.
Optionally, the number of the torque variants is two. And the two torque deformation bodies are arranged at an interval of 180 degrees by taking the shaft axis of the torque bearing shaft as the center.
The invention has the following beneficial effects: the two-dimensional wireless passive sensor for the ball cage semi-axis type inter-dimensional decoupling can simultaneously detect the bending force component and the torsion force component in the coupling force, namely, the structural decoupling is carried out on the coupling force; 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 fields of machine tools, robots and medicine, the direction of the human body implanted sensor is reduced, and the links of various wired transmission, wire embedding in the human body or secondary operation are greatly reduced when the sensor is applied.
Drawings
Fig. 1 is a schematic perspective view of a two-dimensional wireless passive sensor for cage semi-axis inter-dimensional decoupling according to the present invention.
FIG. 2 is a perspective structural section view of the two-dimensional wireless passive sensor for cage semi-axis inter-dimensional decoupling of the invention.
FIG. 3 is an exploded view of the three-dimensional structure of the two-dimensional wireless passive sensor for cage semi-axis decoupling between dimensions of the present invention.
FIG. 4 is a perspective structural cross-sectional view of the bending force-sensitive area of the two-dimensional wireless passive sensor for cage semi-axis decoupling between dimensions of the present invention.
FIG. 5 is an exploded view of the three-dimensional structure of the bending force-receiving sensitive area of the two-dimensional wireless passive sensor for cage semi-axis type dimension decoupling according to the present invention.
Fig. 6 is a perspective structural sectional view of a torsional force sensitive area of the two-dimensional wireless passive sensor for cage semi-axis inter-dimensional decoupling according to the present invention.
Fig. 7 is an exploded view of the three-dimensional structural parts of the torsional force-sensitive area of the ball cage semi-axis type inter-dimensional decoupling two-dimensional wireless passive sensor of the invention.
The notation in the figures means: 1-sensor force bearing joint; 2-bending and twisting a separating slide block; 3-bending and twisting the supporting rod; 4-bending moment center support ball head threaded rod; 5-a first bending moment transfer rod; 6-a second bending moment transmission rod; 7-a third bending moment transfer rod; 8-bending moment bearing body; 9-bending moment support plate; 10-torque bearing ring; 11-bending moment transmission support rod; 12-an upper support cylinder; 13-bending moment morphs; 14-torque bearing shaft; 15-torque transmission rod; 16-a first supporting circular plate; 17-torque morphs; 18-a lower support cylinder; 19-a second supporting circular plate.
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 two-dimensional wireless passive sensor for decoupling among half-shaft dimensions of a ball cage, which comprises a sensor bearing joint 1, a bending-twisting separation slider 2, a bending-twisting support rod 3, a bending moment center support ball-head threaded rod 4, a first bending moment transmission rod 5, a second bending moment transmission rod 6, a third bending moment transmission rod 7, a bending moment bearing body 8, a bending moment support plate 9, a torque bearing ring 10, a bending moment transmission support rod 11, an upper support circular plate 12, a bending moment deformation body 13, a torque bearing shaft 14, a torque transmission rod 15, a first support circular plate 16, a torque deformation body 17, a lower support circular plate 18 and a second support circular plate 19;
the sensor force-bearing joint 1 is connected to the upper ball head of the bending moment center support ball head threaded rod 4, for example, a containing groove is formed in the lower surface of the sensor force-bearing joint 1, the upper ball head of the bending moment center support ball head threaded rod 4 can be arranged in the containing groove of the sensor force-bearing joint 1, so that the sensor force-bearing joint 1 and the bending moment center support ball head threaded rod 4 are in contact connection, and therefore the bending moment center support ball head threaded rod 4 can provide a fulcrum for the sensor force-bearing joint 1 in the rotating process.
The sensor force-bearing connector 1 is fixed on the sensor force-bearing connector 1 through threaded connection, namely the sensor force-bearing connector 1 is respectively in threaded connection with the 3 sensor force-bearing connectors 3 through 3 threaded holes uniformly distributed on the side surface, in the embodiment, the axial lead of the threaded hole of the sensor force-bearing connector 1 is vertically intersected with the axial lead of the sensor force-bearing connector 1, so that the sensor force-bearing connector 1 is vertically intersected with the torque-bearing support rod 3; preferably, 3 threaded holes are arranged at intervals of 120 degrees by taking the axial lead of the sensor force bearing joint 1 as the center.
The sensor force-bearing joint 1 is provided with 6 through holes for connecting with an input joint, and the 6 through holes are arranged at an interval of 60 degrees by taking the axial lead of the sensor force-bearing joint 1 as the center.
The bending support rod 3 is sleeved with a bending separation sliding block 2 and a first bending moment transmission rod 5, for example, the bending separation sliding block 2 is provided with a central hole, and the bending support rod 3 penetrates through the central hole of the bending separation sliding block and is connected to the sensor force bearing connector 1.
The torque bearing ring 10 is provided with a central hole and a through groove along the radial direction, the lower end of the sensor bearing joint 1 is arranged in the central hole, and the inner diameter of the central hole of the torque bearing ring 10 is larger than the diameter of the lower end of the sensor bearing joint 1, so that a gap is formed between the sensor bearing joint 1 and the torque bearing ring 10.
In this embodiment, the number of the through grooves is 3, and the through grooves are arranged at positions corresponding to the position of the torsion support rod 3, and when the torsion support rod 3 is located in the through grooves, the outer wall of the torsion separation sliding block 2 is in contact with the inner wall of the through groove of the torque bearing ring 10.
The upper end of the first bending moment transmission rod 5 is provided with a sliding groove along the length direction (vertical direction), and the bending and twisting support rod 3 penetrates through the sliding groove of the first bending moment transmission rod 5 and can slide up and down in the sliding groove; therefore, when the sensor force-bearing joint 1 bears bending moment, the bending moment can be transmitted downwards through the first bending moment transmission rod 5, and when the sensor force-bearing joint 1 bears torque, the bending moment can be separated from the sliding block 2, and the torque can be transmitted to the torque force-bearing ring 10.
That is, the through groove of the torque bearing ring 10 is used for placing three bending support rods 3 which are connected with the first bending moment transmission rod 5 and the bending separation slide block 2, and meanwhile, the inner wall of the through groove is not in contact with the first bending moment transmission rod 5, so that the torque bearing ring does not influence the bending moment transmission.
Moment of flexure center support bulb threaded rod 4 passes moment of flexure backup pad 9 central point puts the through-hole, and is fixed in moment of flexure backup pad 9, for example, be provided with two nuts on the moment of flexure center support bulb threaded rod, two nuts are located respectively moment of flexure backup pad 9's upper portion and lower part to support bulb threaded rod 4 fixed connection with moment of flexure backup pad 9 and moment of flexure center through two nuts.
The lower end of the bending moment center support ball-end threaded rod 4 is connected with the bending moment bearing body 8, for example, a center blind hole is formed in the bending moment bearing body 8, and the lower end of the bending moment center support ball-end threaded rod 4 is inserted into the center blind hole of the bending moment bearing body 8 and is used for offsetting a radial force generated when the third bending moment transmission rod 7 pulls the bending moment bearing body 8.
The lower end of the first bending moment transmission rod 5 is hinged with one end of the second bending moment transmission rod 6 through a first pin, and the middle part of the second bending moment transmission rod 6 is hinged with the bending moment transmission support rod 11 through a second pin, so that the bending moment transmission support rod 11 provides a fulcrum for the rotation of the second bending moment transmission rod 6; the other end of the second bending moment transmission rod 6 is hinged with the upper end of the third bending moment transmission rod 7 through a third pin, and the lower end of the third bending moment transmission rod 7 is hinged with the side part of the bending moment bearing body 8 through a fourth pin, so that the bending moment can be transmitted to the bending moment bearing body through the second bending moment transmission rod 6 and the third bending moment transmission rod 7.
Preferably, the first pin, the second pin, the third pin and the fourth pin are arranged in parallel.
The bending moment transmission support rod 11 is fixed to the bending moment support plate 9, for example, a through hole is formed in the bending moment support plate, the upper end of the bending moment transmission support rod 11 is a threaded section and penetrates through the bending moment support plate 9, and the bending moment transmission support rod 11 is fixed to the bending moment support plate 9 through a screw.
Preferably, the number of the bending and twisting separation slide block 2, the bending and twisting support rod 3, the first bending moment transmission rod 5, the second bending moment transmission rod 6 and the third bending moment transmission rod 7 is 3, and the three side threaded holes of the sensor force bearing joint 1 are sequentially connected, and the sensor force bearing joint 1 is arranged at intervals of 120 degrees by taking the axial lead of the sensor force bearing joint 1 as the center.
Three side parts of the bending moment bearing body 8 are hinged to the lower end of the third bending moment transmission rod 7 through fourth pins, the lower end of the bending moment bearing body 8 is fixed to the upper end of the bending moment deformation body 13 through bolts, the lower end of the bending moment deformation body 13 is fixed to the torque bearing shaft 14, and magnetostrictive materials are pasted on the side wall of the bending moment deformation body 13.
That is to say, when the third bending moment transmission rod 7 drives the bending moment bearing body 8 to move, the bending moment bearing body 8 enables the bending moment deformation body 13 to deform, at this time, the bending moment deformation body 13 is covered with a magnetostrictive material, and the bending force borne by the deformation detection sensor of the magnetostrictive material also solves the problem of long-term dynamic monitoring.
Preferably, three notches are formed in the bending moment support plate 9, the three notches are arranged at intervals of 120 degrees around the axis of the sensor force bearing joint 1, and the lower end of the first bending moment transmission rod 5 passes through the notches and is located below the bending moment support plate 9.
The torque bearing ring 10 is fixed to the bending moment support plate 9, the lower end of the torque bearing ring 10 is fixed to the upper end of the upper support cylinder 12, and the lower end of the upper support cylinder 12 is fixed to the torque bearing shaft 14.
As an implementation form, through holes may be formed in the torque bearing ring 10, the upper support cylinder 12, and the torque bearing shaft 14, and screws respectively pass through the through holes of the torque bearing ring 10, the upper support cylinder 12, and the torque bearing shaft 14 to fix the torque bearing ring 10, the upper support cylinder 12, and the torque bearing shaft 14.
In this embodiment, the number of the bending moment transmission support rods 11 is 6, the upper ends of the bending moment transmission support rods are formed into threaded parts, and the threaded parts penetrate through the 6 through holes of the bending moment support plate 9 and are fixed by nuts; when the bending moment support plate 9 and the torque bearing ring 10 are connected and pre-tightly matched through bolts, the thread part of the bending moment transmission support rod 11 is fixedly contacted with the lower surface of the torque bearing ring 10; the lower end of the bending moment transmission supporting rod 11 is provided with a through hole, so that the through hole passing through the bending moment transmission supporting rod 11 and the middle through hole of the second bending moment transmission rod 6 are connected and matched through a second pin.
The lower end of the torque bearing shaft 14 is sleeved with the torque transmission rod 15, and the torque transmission rod 15 is fixed to the torque bearing shaft 14 through a pin or a screw.
The torque bearing shaft 14 is further sleeved with a first supporting circular plate 16, the first supporting circular plate is located between the torque transmission rod 15 and the shaft end face of the torque bearing shaft 14, so that the axial position of the first supporting circular plate 16 is limited by the upper surface of the torque transmission rod 15 and the shaft end face of the torque bearing shaft 14 together, and the first supporting circular plate 16 can only rotate by taking the shaft axis of the torque bearing shaft 14 as the shaft center.
The first supporting circular plate 16 is fixed to the upper end of the lower supporting cylinder 18, and the lower end of the lower supporting cylinder 18 is fixed to the second supporting circular plate 19; as an example, the first supporting circular plate 16, the lower supporting cylinder 18 and the second supporting circular plate 19 are respectively provided with 6 through holes, and screws are inserted through the through holes of the first supporting circular plate 16, the lower supporting cylinder 18 and the second supporting circular plate 19 to fix the first supporting circular plate 16, the lower supporting cylinder 18 and the second supporting circular plate 19.
The torque transmission rod 15 is provided with at least two elongated holes, the lower end of the torque deformation body 17 is fixed to the second supporting circular plate 19, and the upper end of the torque deformation body 17 penetrates through the elongated holes of the torque transmission rod 15, so that the torque deformation body 17 can deform when the torque transmission rod 15 transmits torque to rotate, and the side wall of the torque deformation body 17 is pasted with a magnetostrictive material, so that the torsional force borne by the sensor is detected through the deformation of the magnetostrictive material, and the problem of long-term dynamic monitoring is solved.
Preferably, the number of the torque deformation bodies 17 is two, and each of the torque deformation bodies 17 has two threaded holes at a lower portion, and the two torque deformation bodies 17 are arranged at an interval of 180 ° with respect to the axis line of the torque bearing shaft 14.
Therefore, when the two-dimensional wireless passive sensor for decoupling between ball cage semi-axis dimensions of the embodiment is used, the sensor force bearing joint 1 can be fixed to the to-be-detected piece, and the second supporting circular plate 19 is fixed to the to-be-detected piece, so that when the two to-be-detected pieces bear bending and torsion complex action, a magnetostrictive material generates stress, a magnetic field of the magnetostrictive material is changed under the action of external stress when an excitation coil generates a uniform alternating magnetic field, the detection coil detects the change in the magnetic field, and then the change is converted into an electrical signal to represent the condition of the bending and torsion stress.
When the ball cage semi-axis type inter-dimensional decoupling two-dimensional wireless passive sensor is subjected to torsional force, the torsional force sequentially passes through the sensor bearing joint 1, the bending support rod 3, the bending separation slide block 2 and the inner wall of the sliding chute of the torque bearing ring 10, and then sequentially transmits torque to the upper support cylinder 12, the torque bearing shaft 14, the torque transmission rod 15 and the torque deformation body 17 through a threaded rod; the torsion force enables the torque bearing shaft 14 to rotate, further enables the torque transmission rod 15 to drive the torque deformation body 17 to deform, the requirement of single-direction stress of the torque deformation body 17 is met, and the measurement accuracy of the two-dimensional wireless passive sensor for decoupling among the ball cage semi-axis type dimensions is guaranteed; 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 two-dimensional wireless passive sensor for decoupling between semi-axis dimensions of the ball cage is subjected to bending force, the sensor force-bearing joint 1 can rotate relative to the torque force-bearing ring 10 by taking the bending moment center support ball-head threaded rod 4 as a fulcrum, so that the bending-torsion support rod 3 drives the first bending moment transmission rod 5 to move up and down and then transmit downwards; bending force sequentially passes through the sensor force-bearing joint 1, the bending support rod 3, the first bending moment transmission rod 5, the second bending moment transmission rod 6, the third bending moment transmission rod 7, the bending moment force-bearing body 8 and the bending moment deformation body 13; when the sensor force-bearing joint 1 receives the bending moment to drive the first bending moment transmission rod 5 to move up and down, as the upper part of the first bending moment transmission rod 5 is provided with the sliding groove, at most two first bending moment transmission rods 5 bear force and transmit the bending moment simultaneously; in the moment of flexure transfer process, can make third moment of flexure transfer pole 7 stimulates during moment of flexure bearing body 8, can make moment of flexure bearing body 8 drive moment of deformation body 13 takes place to be out of shape, produces the magnetostriction inverse effect (Veralei effect) under the effect of the excitation magnetic field of exerting, detects its magnetic field through the detection coil and changes, can obtain bending stress.
The two-dimensional wireless passive sensor for the ball cage semi-axis type inter-dimensional decoupling can simultaneously detect the bending force component and the torsion force component in the coupling force, namely, the structural decoupling is carried out on the coupling force; and does not need to be connected into a power supply line or collect data through a wired interface; the method is applied to the fields of machine tools, biology and medicine, can greatly reduce the problem that a plurality of wired transmissions are needed when the sensor outputs data, and greatly promotes the simplicity of information transmission.
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 (7)
1. The utility model provides a decoupling zero two-dimentional wireless passive sensor between ball cage semi-axis formula dimension which characterized in that includes: the bending moment center support device comprises a sensor force-bearing connector, a bending moment separation sliding block, a bending moment support rod, a bending moment center support ball-head threaded rod, a first bending moment transmission rod, a second bending moment transmission rod, a third bending moment transmission rod, a bending moment bearing body, a bending moment support plate, a torque force-bearing ring, a bending moment transmission support rod, an upper support cylinder, a bending moment deformation body, a torque force-bearing shaft, a torque transmission rod, a first support circular plate, a torque deformation body, a lower support cylinder and a second support circular plate;
the sensor force bearing joint is connected with the upper ball head of the bending moment center support ball head threaded rod; the bending and twisting support rod is fixed on the sensor force bearing joint, and a bending and twisting separation sliding block and a first bending moment transmission rod are sleeved on the bending and twisting support rod;
the torque bearing ring is provided with a central hole, a through groove is formed along the radial direction of the torque bearing ring, the lower end of the sensor bearing joint is arranged in the central hole, and the inner diameter of the central hole of the torque bearing ring is larger than the diameter of the lower end of the sensor bearing joint; when the bending support rod is positioned in the through groove, the outer wall of the bending separation sliding block is in contact with the inner wall of the through groove of the torque bearing ring;
a sliding groove is formed in the upper end of the first bending moment transmission rod along the vertical direction, and the bending and twisting support rod penetrates through the sliding groove of the first bending moment transmission rod and can slide up and down in the sliding groove; the first bending moment transmission rod is not contacted with the inner wall of the through groove of the torque bearing ring;
the bending moment center support ball head threaded rod penetrates through the bending moment support plate and is fixed on the bending moment support plate;
the lower end of the first bending moment transmission rod is hinged with one end of the second bending moment transmission rod, and the middle part of the second bending moment transmission rod is hinged with the bending moment transmission support rod; the other end of the second bending moment transmission rod is hinged with the upper end of the third bending moment transmission rod, and the lower end of the third bending moment transmission rod is hinged with the side part of the bending moment bearing body; the lower end of the bending moment center support ball head threaded rod is connected with the bending moment bearing body; the bending moment transmission supporting rod is fixed on the bending moment supporting plate;
the lower end of the bending moment bearing body is fixed at the upper end of the bending moment deformation body, the lower end of the bending moment deformation body is fixed on the torque bearing shaft, and magnetostrictive materials are adhered to the side wall of the bending moment deformation body;
the torque bearing ring is fixed on the bending moment support plate, the lower end of the torque bearing ring is fixed at the upper end of the upper support cylinder, and the lower end of the upper support cylinder is fixed on the torque bearing shaft;
the lower end of the torque bearing shaft is sleeved with the torque transmission rod, and the torque transmission rod is fixed on the torque bearing shaft;
the torque bearing shaft is also sleeved with the first supporting circular plate, and the first supporting circular plate is positioned between the torque transmission rod and the shaft end face of the torque bearing shaft so as to limit the axial position of the first supporting circular plate through the upper surface of the torque transmission rod and the shaft end face of the torque bearing shaft;
the first supporting circular plate is fixed at the upper end of the lower supporting cylinder, and the lower end of the lower supporting cylinder is fixed at the second supporting circular plate;
the torque transmission rod is provided with at least two elongated holes, the lower end of the torque deformation body is fixed to the second supporting circular plate, the upper end of the torque deformation body penetrates through the elongated holes of the torque transmission rod, and magnetostrictive materials are adhered to the side wall of the torque deformation body.
2. The two-dimensional wireless passive sensor for decoupling between half-axis ball cages according to claim 1, wherein a containing groove is formed in the lower surface of the sensor force-bearing joint, and the upper ball head of the bending moment center support ball head threaded rod is arranged in the containing groove of the sensor force-bearing joint.
3. The two-dimensional wireless passive sensor for the half-axis interdimensional decoupling of the ball cage according to claim 1, wherein three threaded holes are formed in the sensor force-bearing joint, the axis of the threaded hole of the sensor force-bearing joint is perpendicular to the axis of the sensor force-bearing joint, and the torsion support rod is fixed in the threaded hole.
4. The two-dimensional wireless passive sensor for decoupling between the half-shaft type dimensions of the ball cage according to claim 1, wherein a central blind hole is formed on the bending moment bearing body, and the lower end of the bending moment central support ball-head threaded rod is inserted into the central blind hole of the bending moment bearing body.
5. The two-dimensional wireless passive sensor for decoupling between the ball cage semi-axis dimensions as claimed in claim 1, wherein the bending moment support plate is provided with a through hole, the upper end of the bending moment transmission support rod is a threaded section, the upper end of the bending moment transmission support rod passes through the bending moment support plate, and the bending moment transmission support rod is fixed to the bending moment support plate through a screw.
6. The two-dimensional wireless passive sensor for decoupling between half-axis ball cages according to claim 1, wherein three notches are formed in the bending moment support plate, the three notches are arranged at intervals of 120 degrees around the axis of the force bearing joint of the sensor, and the lower end of the first bending moment transmission rod penetrates through the notches and is located below the bending moment support plate.
7. The two-dimensional decoupling two-dimensional wireless passive sensor based on the semi-axial ball cage type of claim 1, wherein the number of the torque deformation bodies is two, and the two torque deformation bodies are arranged at an interval of 180 degrees by taking the axial lead of the torque bearing shaft as the center.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011610803.0A CN112683438B (en) | 2020-12-30 | 2020-12-30 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
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| CN202011610803.0A CN112683438B (en) | 2020-12-30 | 2020-12-30 | Half-shaft type inter-dimension decoupling two-dimensional wireless passive sensor for ball cage |
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| CN112683438B true CN112683438B (en) | 2021-11-16 |
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Citations (7)
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