CN109341904A - Novel traction force snesor - Google Patents
Novel traction force snesor Download PDFInfo
- Publication number
- CN109341904A CN109341904A CN201811417105.1A CN201811417105A CN109341904A CN 109341904 A CN109341904 A CN 109341904A CN 201811417105 A CN201811417105 A CN 201811417105A CN 109341904 A CN109341904 A CN 109341904A
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- China
- Prior art keywords
- magnetic
- deformation
- loaded cylinder
- induction
- load
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- 238000010008 shearing Methods 0.000 claims abstract description 55
- 230000006698 induction Effects 0.000 claims abstract description 49
- 238000004804 winding Methods 0.000 claims abstract description 13
- 230000002093 peripheral effect Effects 0.000 claims description 9
- 230000004907 flux Effects 0.000 abstract description 6
- 230000008859 change Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/12—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress
- G01L1/127—Measuring force or stress, in general by measuring variations in the magnetic properties of materials resulting from the application of stress by using inductive means
Abstract
The invention discloses a kind of novel traction force snesors, including loaded cylinder, load magnetic core is installed in loaded cylinder, load magnetic core includes two shearing deformation magnetic poles and two torsional deformation magnetic poles, winding is equipped with shearing deformation coil respectively on two shearing deformation magnetic poles, winding is equipped with torsional deformation coil respectively on two torsional deformation magnetic poles, and two torsional deformation magnetic poles and two shearing deformation magnetic poles are arranged in a crossed manner, and loaded cylinder is equipped with circumferentially positioned slot；Induction magnetic core is symmetrically installed in loaded cylinder, induction magnetic core includes two induction magnetic poles, and induction magnetic pole is arranged in parallel with shearing deformation magnetic pole；Winding is equipped with induction coil respectively on each induction magnetic pole, and induction coil is connected with differential output circuit jointly；Loaded cylinder can bear heavy load effect, and when loaded cylinder is loaded, shearing and torsional deflection occur for load magnetic core, and the superposition that original magnetic field shifts and deflects, this makes to become apparent from by the magnetic flux change of induction coil, and induced current amplitude of variation increases.
Description
Technical field
The present invention relates to a kind of force snesor more particularly to a kind of novel traction force snesors.
Background technique
In the agricultural modernizations mechanized equipment course of work such as big-powered tractor, in order to realize more stable tractive force
Control needs to carry out precise measurement to the tractive force of suspension arrangement, and therefore, the quality of drawbar load sensing mechanism performance will directly affect
To the operation quality of suspension farm implements.The working environment of drawbar load sensing mechanism not only requires it that should have biggish heavy load to bear
Ability, and require it that there is good linear convergent rate under the premise of small strain, that is, there is preferable sensitivity.Existing skill
Art mostly uses column magnetic core, is only capable of measuring the tractive force of single direction, and sensitivity is lower.
Summary of the invention
It is good and with higher sensitivity novel technical problem to be solved by the invention is to provide a kind of heavy load ability to bear
Drawbar load sensing mechanism.
In order to solve the above technical problems, the technical scheme is that novel traction force snesor, including loaded cylinder, institute
It states and load magnetic core is installed in loaded cylinder, the load magnetic core includes two shearing deformation magnetic poles of radial symmetric setting, described in two
Winding is equipped with shearing deformation coil respectively on shearing deformation magnetic pole, and the end face of the two shearing deformation magnetic poles collectively forms and institute
State the shearing deformation transfer surface that the inner peripheral surface of loaded cylinder is coupled；The load magnetic core further includes the torsion of radial symmetric setting
Deformation magnetic pole, winding is equipped with torsional deformation coil respectively on the two torsional deformation magnetic poles, the two torsional deformation magnetic poles with
The two shearing deformation magnetic poles are arranged in a crossed manner on the same cross section of the loaded cylinder, and the loaded cylinder is equipped with and the torsion
The corresponding circumferentially positioned slot in the end of deformation magnetic pole；It is located at the load magnetic core axial sides in the loaded cylinder to be symmetrically installed with
Incude magnetic core, the induction magnetic core includes two induction magnetic poles of radial symmetric setting, two induction magnetic poles of each induction magnetic core
It is arranged in parallel with the shearing deformation magnetic pole；Winding is equipped with induction coil, the line of induction respectively on each induction magnetic pole
Circle is connected with differential output circuit jointly.
The two torsional deformation magnetic poles and the two shearing deformation magnetic poles are in the loaded cylinder as a preferred technical solution,
It is vertically arranged on same cross section.
It is located at the load magnetic core on the outer peripheral surface of the loaded cylinder as a preferred technical solution, and is equipped with force bearing ring
Slot.
By adopting the above-described technical solution, novel traction force snesor, including loaded cylinder, it is equipped in the loaded cylinder
Load magnetic core, the load magnetic core include two shearing deformation magnetic poles of radial symmetric setting, are divided on the two shearing deformation magnetic poles
Shearing deformation coil Chan Rao be installed, the end face of the two shearing deformation magnetic poles collectively forms the inner peripheral surface with the loaded cylinder
The shearing deformation transfer surface being coupled；The load magnetic core further includes the torsional deformation magnetic pole of radial symmetric setting, described in two
Winding is equipped with torsional deformation coil, the two torsional deformation magnetic poles and the two shearing deformation magnetic respectively on torsional deformation magnetic pole
Pole is arranged in a crossed manner on the same cross section of the loaded cylinder, and the loaded cylinder is equipped with the end pair with the torsional deformation magnetic pole
The circumferentially positioned slot answered；It is located at the load magnetic core axial sides in the loaded cylinder and is symmetrically installed with induction magnetic core, the sense
Answering magnetic core includes two induction magnetic poles of radial symmetric setting, the two induction magnetic poles and the shearing deformation magnetic of each induction magnetic core
Pole is arranged in parallel；Winding is equipped with induction coil respectively on each induction magnetic pole, and the induction coil is connected with differential jointly
Output loop；Loaded cylinder can bear heavy load effect, when loaded cylinder is not loaded, the shearing deformation coil and the torsion
Deformation coil generates symmetric magnetic field, and the magnetic flux by the induction coil is zero；When loaded cylinder is loaded, the shearing
Shearing deformation occurs for deformation magnetic pole, and the torsional deformation magnetic pole twists deformation, and original magnetic field generates offset respectively and deflects,
Make to become apparent by the magnetic flux change of induction coil by offset and the superposition of magnetic deflection field, induced current also changes therewith
Amplitude increases, and sensitivity increases.
Detailed description of the invention
The following drawings are only intended to schematically illustrate and explain the present invention, not delimit the scope of the invention.Wherein:
Fig. 1 is the schematic cross-sectional view of the embodiment of the present invention；
Fig. 2 is the schematic perspective view of loaded cylinder of the embodiment of the present invention；
Fig. 3 is the whole three-dimensional enlarged structure schematic diagram of load of embodiment of the present invention magnetic core and induction magnetic core；
Fig. 4 is the three-dimensional enlarged structure schematic diagram of load magnetic core of the embodiment of the present invention.
In figure: 1- loaded cylinder；11- load annular groove；The circumferentially positioned slot of 12-；2- load magnetic core；21- shearing deformation magnetic pole；
22- shearing deformation coil；23- shearing deformation transfer surface；24- torsional deformation magnetic pole；25- torsional deformation coil；3- incudes magnetic core；
31- incudes magnetic pole；32- induction coil；4- inserting slot construction.
Specific embodiment
With reference to the accompanying drawings and examples, the present invention is further explained.In the following detailed description, only pass through explanation
Mode describes certain exemplary embodiments of the invention.Undoubtedly, those skilled in the art will recognize,
In the case where without departing from the spirit and scope of the present invention, described embodiment can be repaired with a variety of different modes
Just.Therefore, attached drawing and description are regarded as illustrative in nature, and are not intended to limit the scope of the claims.
As shown in Figures 1 to 4, novel traction force snesor, including loaded cylinder 1, loaded cylinder 1 described in the present embodiment can be
Round tube is process, and can also can increase step or inserting slot construction 4 on outer peripheral surface to position to drill on pin shaft
Installation.
Load magnetic core 2 is installed, the load magnetic core 2 includes two shearing shapes of radial symmetric setting in the loaded cylinder 1
Become magnetic pole 21, the load magnetic core 2 further includes the torsional deformation magnetic pole 24 of radial symmetric setting, the two torsional deformation magnetic poles 24
It is arranged in a crossed manner on the same cross section of the loaded cylinder 1 with the two shearing deformation magnetic poles 21, shape is reversed described in the present embodiment two
Become magnetic pole 24 to be vertically arranged on the same cross section of the loaded cylinder 1 with the two shearing deformation magnetic poles 21, i.e., two torsions
Deformation magnetic pole 24 and the two shearing deformation magnetic poles 21 are arranged in cross.The thickness of torsional deformation magnetic pole 24 described in the present embodiment
Less than the thickness of the shearing deformation magnetic pole 21, the torsional deformation of the torsional deformation magnetic pole 24 more conducively described in this way.
Winding is equipped with shearing deformation coil 22, the two shearing deformation coils respectively on the two shearing deformation magnetic poles 21
The magnetic direction generated after 22 energizations should be consistent.The end face of the two shearing deformation magnetic poles 21 collectively forms and the loaded cylinder
The shearing deformation transfer surface 23 that 1 inner peripheral surface is coupled, the shearing deformation transfer surface 23 and 1 inner peripheral surface of loaded cylinder are excellent
Choosing interference fit, the loaded cylinder 1 described in this way can preferably be passed to the shearing deformation magnetic pole by the shearing deformation after load
21, more conducively improve the sensitivity of the present embodiment.
Winding is equipped with torsional deformation coil 25, the two torsional deformation coils respectively on the two torsional deformation magnetic poles 24
25 magnetic directions generated after powered up should be consistent.The loaded cylinder 1 is equipped with the end with the torsional deformation magnetic pole 24
Corresponding circumferentially positioned slot 12, circumferentially positioned 12 one side of slot play the role of to the load magnetic core 2 it is circumferentially positioned, simultaneously
The sliding slot of 24 installation of torsional deformation magnetic pole when also being installed as the load magnetic core 2.The shearing deformation coil 22 with
The number of turns and connection type of the torsional deformation coil 25 can be set according to actual needs, this is those skilled in the art institute
Well known, details are not described herein.
It is located at 2 axial sides of load magnetic core in the loaded cylinder 1 and is symmetrically installed with induction magnetic core 3, the induction magnetic
Core 3 includes two induction magnetic poles 31 of radial symmetric setting, i.e., four induction magnetic poles 31 are in the same longitudinal section of the loaded cylinder 1
It is upper in rectangular layout.Two induction magnetic poles 31 of each induction magnetic core 3 are arranged in parallel with the shearing deformation magnetic pole 21, this sample
Induction magnetic pole 31 described in embodiment is just vertically arranged with the torsional deformation magnetic pole 24.
Winding is equipped with induction coil 32 respectively on each induction magnetic pole 31, and the induction coil 32 is connected with difference jointly
Dynamic output loop.The differential output circuit is to export the 32 induced currents size of induction coil, to judge load
Size；What the differential output circuit was well known to those skilled in the art, details are not described herein and is being not shown in the figure.
It is located at the load magnetic core 2 on the outer peripheral surface of the loaded cylinder 1 and is equipped with load annular groove 11, the loaded cylinder 1 exists
When bearing heavy load, the load annular groove 11 is easier to pass to the shearing deformation magnetic pole 21 for shear-deformable.
The working principle of the present embodiment are as follows: when the loaded cylinder 1 is not by any load, the shearing deformation magnetic pole 21
Symmetrical magnetic field is generated respectively with the torsional deformation magnetic pole 24, is in this way zero by the magnetic flux of the induction coil 32；When
When the loaded cylinder 1 bears load, load can make the shearing deformation magnetic pole 21 that shearing deformation, the shearing deformation coil occur
22 magnetic field shifts, and load makes the torsional deformation magnetic pole 24 twist deformation simultaneously, the torsional deformation coil 25
Magnetic field twist, changed by the magnetic flux of the induction coil 32, induced electricity generated in the induction coil 32
Stream, and by the superposition of two Magnetic field shifts and deflection so that being increased by the magnetic flux change of the induction coil 32, production
Raw induced current amplitude of variation also just increases, and the sensitivity of the present embodiment is improved with this.
The present embodiment is become by the torsion of the shear-deformable and described torsional deformation magnetic pole 24 of the shearing deformation magnetic pole 21
The sensitivity of measurement tractive force can be improved in shape, and the complicated of the force snesor suitable for big-powered tractor traction control uses
Operating condition, certain the present embodiment can also be used for the measurement of heavy load under other similar environment.
The above shows and describes the basic principle, main features and advantages of the invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. novel traction force snesor, including loaded cylinder, it is characterised in that: load magnetic core is installed in the loaded cylinder, it is described
Load magnetic core includes two shearing deformation magnetic poles of radial symmetric setting, winds to be equipped with respectively on the two shearing deformation magnetic poles and cut
The end face of shear deformation coil, the two shearing deformation magnetic poles collectively forms the shearing being coupled with the inner peripheral surface of the loaded cylinder
Deformation transfer surface；The load magnetic core further includes the torsional deformation magnetic pole of radial symmetric setting, on the two torsional deformation magnetic poles
Winding is equipped with torsional deformation coil respectively, and the two torsional deformation magnetic poles and the two shearing deformation magnetic poles are in the loaded cylinder
Arranged in a crossed manner on same cross section, the loaded cylinder is equipped with corresponding circumferentially positioned with the end of the torsional deformation magnetic pole
Slot；It is located at the load magnetic core axial sides in the loaded cylinder and is symmetrically installed with induction magnetic core, the induction magnetic core includes diameter
To symmetrically arranged two inductions magnetic pole, two induction magnetic poles of each induction magnetic core are arranged in parallel with the shearing deformation magnetic pole；
Winding is equipped with induction coil respectively on each induction magnetic pole, and the induction coil is connected with differential output circuit jointly.
2. novel traction force snesor as described in claim 1, it is characterised in that: described in the two torsional deformation magnetic poles and two
Shearing deformation magnetic pole is vertically arranged on the same cross section of the loaded cylinder.
3. novel traction force snesor as described in claim 1 or 2, it is characterised in that: on the outer peripheral surface of the loaded cylinder
Load annular groove is equipped at the load magnetic core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417105.1A CN109341904A (en) | 2018-11-26 | 2018-11-26 | Novel traction force snesor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811417105.1A CN109341904A (en) | 2018-11-26 | 2018-11-26 | Novel traction force snesor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109341904A true CN109341904A (en) | 2019-02-15 |
Family
ID=65317997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811417105.1A Pending CN109341904A (en) | 2018-11-26 | 2018-11-26 | Novel traction force snesor |
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| Country | Link |
|---|---|
| CN (1) | CN109341904A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112857626A (en) * | 2021-02-05 | 2021-05-28 | 齐鲁工业大学 | Double-cross axle symmetric force sensor |
| CN112964403A (en) * | 2021-01-28 | 2021-06-15 | 齐鲁工业大学 | Two dimension force sensor of symmetry formula and tractor |
| CN113155325A (en) * | 2021-05-06 | 2021-07-23 | 齐鲁工业大学 | Novel composite traction force sensor |
| CN113310605A (en) * | 2021-05-11 | 2021-08-27 | 山东大学 | Double-meter-shaped-shaft type force sensor and method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209027701U (en) * | 2018-11-26 | 2019-06-25 | 日照海卓液压有限公司 | Novel traction force snesor |
-
2018
- 2018-11-26 CN CN201811417105.1A patent/CN109341904A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209027701U (en) * | 2018-11-26 | 2019-06-25 | 日照海卓液压有限公司 | Novel traction force snesor |
Non-Patent Citations (1)
| Title |
|---|
| 李瑞川: "大功率拖拉机电液提升专用力传感器磁路设计与仿真", 《农业机械学报》, vol. 48, no. 8, 31 August 2017 (2017-08-31) * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112964403A (en) * | 2021-01-28 | 2021-06-15 | 齐鲁工业大学 | Two dimension force sensor of symmetry formula and tractor |
| CN112857626A (en) * | 2021-02-05 | 2021-05-28 | 齐鲁工业大学 | Double-cross axle symmetric force sensor |
| CN112857626B (en) * | 2021-02-05 | 2022-05-24 | 齐鲁工业大学 | Double-cross axle symmetric force sensor |
| CN113155325A (en) * | 2021-05-06 | 2021-07-23 | 齐鲁工业大学 | Novel composite traction force sensor |
| CN113310605A (en) * | 2021-05-11 | 2021-08-27 | 山东大学 | Double-meter-shaped-shaft type force sensor and method thereof |
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