CN113155325A - Novel composite traction force sensor - Google Patents
Novel composite traction force sensor Download PDFInfo
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- CN113155325A CN113155325A CN202110490104.5A CN202110490104A CN113155325A CN 113155325 A CN113155325 A CN 113155325A CN 202110490104 A CN202110490104 A CN 202110490104A CN 113155325 A CN113155325 A CN 113155325A
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- induction
- magnetic
- bearing
- deformation
- induction coil
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- 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
-
- 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
- G01L5/13—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring the tractive or propulsive power of vehicles
Abstract
The invention provides a novel composite traction force sensor, which comprises: the induction magnetic core comprises a first induction magnetic pole and a second induction magnetic pole, a first induction coil is wound on the first induction magnetic pole, a second induction coil is wound on the second induction magnetic pole, and the first induction coil and the second induction coil are connected with an output differential loop together; the bearing magnetic core is arranged on the bearing cylinder and comprises two semicircular deformation magnetic poles, and deformation coils are respectively wound on the two semicircular deformation magnetic poles.
Description
Technical Field
The invention belongs to the field of force sensors, and particularly relates to a novel composite traction force sensor.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the working process of modern agricultural machinery equipment such as a high-horsepower tractor and the like, in order to realize more stable traction control, the traction of a suspension device needs to be accurately measured, so the performance of a traction sensor directly influences the operation quality of suspended agricultural implements. Chinese patent with application number "CN 201811417105.1" discloses a novel traction force sensor, and its load-bearing magnetic core is a columnar structure, can only detect the horizontal direction and the vertical direction force acting on the sensor, can not detect the force of other directions, has reduced the sensitivity of sensor. Aiming at the problems in the patent, the invention develops a novel composite traction force sensor.
Disclosure of Invention
In order to solve the problems, the invention provides a novel composite traction force sensor which detects acting forces acting on the sensor in all directions through an annular force bearing magnetic core and greatly improves the sensitivity of the sensor.
According to some embodiments, the invention adopts the following technical scheme:
in a first aspect, the present invention provides a novel compound traction sensor.
Novel compound traction force sensor includes: the induction magnetic core comprises a first induction magnetic pole and a second induction magnetic pole, a first induction coil is wound on the first induction magnetic pole, a second induction coil is wound on the second induction magnetic pole, and the first induction coil and the second induction coil are connected with an output differential loop together; the bearing magnetic core is arranged on the bearing cylinder and comprises two semicircular deformation magnetic poles, and deformation coils are respectively wound on the two semicircular deformation magnetic poles.
In a second aspect, the present invention provides a novel compound traction sensor.
Novel compound traction force sensor includes: the induction magnetic core comprises a first induction magnetic pole and a second induction magnetic pole, a first induction coil is wound on the first induction magnetic pole, a second induction coil is wound on the second induction magnetic pole, and the first induction coil and the second induction coil are connected with an output differential loop together; the bearing cylinder is provided with two bearing magnetic cores with the same structure, each bearing magnetic core comprises two semicircular deformation magnetic poles, and deformation coils are wound on the two semicircular deformation magnetic poles respectively.
Compared with the prior art, the invention has the beneficial effects that:
when the bearing cylinder is not loaded, the deformation coil generates a symmetrical magnetic field, and the magnetic flux passing through the first induction coil and the second induction coil is zero; when bearing section of thick bamboo received the load, deformation magnetic pole takes place to deform, original magnetic field produces skew and deflection respectively, the magnetic flux through first induction coil and second induction coil changes obviously through the stack of skew and deflection magnetic field, and owing to install the bearing magnetic core of two looks isostructures, and every bearing magnetic core has two semicircular deformation magnetic poles, can perceive the shearing force and the torsional force of circumference all directions, make the magnetic flux through first induction coil and second induction coil change more obviously, induced-current amplitude of change is bigger.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
FIG. 1 is a schematic cross-sectional structural view of an example of the present invention;
fig. 2 is a schematic perspective view of a bearing cylinder according to an embodiment of the invention;
FIG. 3 is an enlarged view of the force-bearing core and the induction core according to the embodiment of the present invention;
fig. 4 is a schematic diagram of a three-dimensional enlarged structure of a bearing magnetic core according to an embodiment of the invention;
in the figure: 1-bearing cylinder; 11-bearing ring groove; 12-circumferential positioning grooves; 2-force bearing magnetic core; 22-deformation coil; 23-deformed magnetic pole; 3-an induction core; 31-induction pole; 32-an induction coil; 4-slot structure.
The specific implementation mode is as follows:
the invention is further described with reference to the following figures and examples.
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and mean either a fixed connection or an integrally connected or detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
Example one
The present embodiment provides a novel compound traction sensor.
As shown in fig. 1-4, the novel composite traction force sensor comprises: the induction magnetic core 3 comprises a first induction magnetic pole 31 and a second induction magnetic pole 31, a first induction coil 32 is wound on the first induction magnetic pole 31, a second induction coil 32 is wound on the second induction magnetic pole 31, and the first induction coil 32 and the second induction coil 32 are connected with an output differential loop together; the bearing magnetic core 2 is installed on the bearing cylinder 1, the bearing magnetic core 2 comprises two semicircular deformation magnetic poles 23, and deformation coils 22 are respectively wound on the two semicircular deformation magnetic poles 23.
In this embodiment, the bearing cylinder 1 may be formed by processing a circular tube or by drilling a hole in the pin, and a step or a slot structure 4 may be added on the outer circumferential surface thereof for positioning and installation.
The bearing magnetic core 2 is installed in the bearing cylinder 1, the bearing magnetic core 23 comprises two semicircular deformation magnetic poles 23 which are radially and symmetrically arranged, and the two semicircular deformation magnetic poles 23 are vertically arranged on the bearing cylinder 1. The dimension of the deformed magnetic pole 23 is a full circle, so that the sensitivity of the sensor is increased.
The semicircular deformation magnetic poles 23 are respectively wound with semicircular deformation coils 22, and the directions of magnetic fields generated after the semicircular deformation coils 22 are electrified should be consistent. The semicircular deformation magnetic pole 23 is preferably in interference fit with the inner peripheral surface of the bearing cylinder 1, so that deformation of the bearing cylinder 1 after load is better transferred to the semicircular deformation magnetic pole 23, and the improvement of the sensitivity of the embodiment is facilitated. The number of turns and the connection mode of the semicircular deformation coil 22 can be set according to actual needs, which are well known to those skilled in the art and will not be described herein.
The two semicircular deformation magnetic poles 23 are respectively wound with a semicircular deformation coil 22, and the directions of the magnetic fields generated by the two semicircular deformation coils 22 after being electrified are consistent. The bearing cylinder 1 is provided with a circumferential positioning groove 12 corresponding to the end part of the semicircular deformation magnetic pole 23, and the circumferential positioning groove 12 plays a circumferential positioning role on one hand for the bearing magnetic core 2 and also serves as a sliding groove for installing the semicircular deformation magnetic pole 23 when the bearing magnetic core 2 is installed. The number of turns and the connection mode of the semicircular deformation coil 22 can be set according to actual needs, which are well known to those skilled in the art and will not be described herein.
A first induction coil 32 and a second induction coil 32 are respectively wound on the first induction pole 31 and the second induction pole 31, and the first induction coil 32 and the second induction coil 32 are connected with a differential output loop together. The differential output loop is used for outputting the magnitude of the induced current in the first induction coil 32 and the second induction coil 32, so as to judge the magnitude of the load; the differential output loop is well known to those skilled in the art and will not be described herein and is not shown in the drawings.
The peripheral surface of the bearing cylinder 1 is provided with a bearing ring groove 11 at the bearing magnetic core 2, and when the bearing cylinder 1 bears heavy load, the bearing ring groove 11 more easily transfers shearing deformation to the semicircular deformation magnetic pole 23.
The working principle of the implementation is as follows: when the force bearing cylinder 1 is not loaded, the semicircular deformation magnetic pole 23 generates a symmetrical magnetic field, so that the magnetic flux passing through the first induction coil 32 and the second induction coil 32 is zero; when the bearing cylinder 1 bears load, the load can make the semicircular deformation magnetic poles 23 generate shearing deformation or torsional deformation, the magnetic field of the deformation coil 22 deviates, the magnetic fluxes of the first induction coil 32 and the second induction coil 32 change, induced current is generated in the first induction coil 32 and the second induction coil 32, and the bearing magnetic core has two semicircular deformation magnetic poles through superposition of magnetic field deflection, so that the shearing force and the torsional force in all directions of the circumference can be sensed, the magnetic flux change through the first induction coil and the second induction coil is more obvious, the induced current change amplitude is larger, and the sensitivity of the sensor is improved.
Example two
The present embodiment provides a novel compound traction sensor.
As shown in fig. 1-4, the novel composite traction force sensor comprises: the induction magnetic core 3 comprises a first induction magnetic pole 31 and a second induction magnetic pole 31, a first induction coil 32 is wound on the first induction magnetic pole 31, a second induction coil 32 is wound on the second induction magnetic pole 31, and the first induction coil 32 and the second induction coil 32 are connected with an output differential loop together; the bearing cylinder 1 is provided with two bearing magnetic cores 2 with the same structure, each bearing magnetic core 2 comprises two semicircular deformation magnetic poles 23, and the two semicircular deformation magnetic poles 23 are respectively wound with a deformation coil 22.
In this embodiment, the bearing cylinder 1 may be formed by processing a circular tube or by drilling a hole in the pin, and a step or a slot structure 4 may be added on the outer circumferential surface thereof for positioning and installation.
The bearing magnetic core 2 is installed in the bearing cylinder 1, the bearing magnetic core 23 comprises two semicircular deformation magnetic poles 23 which are radially and symmetrically arranged, and the two semicircular deformation magnetic poles 23 are vertically arranged on the bearing cylinder 1. The dimension of the deformed magnetic pole 23 is a full circle, so that the sensitivity of the sensor is increased.
The semicircular deformation magnetic poles 23 are respectively wound with semicircular deformation coils 22, and the directions of magnetic fields generated after the semicircular deformation coils 22 are electrified should be consistent. The semicircular deformation magnetic pole 23 is preferably in interference fit with the inner peripheral surface of the bearing cylinder 1, so that deformation of the bearing cylinder 1 after load is better transferred to the semicircular deformation magnetic pole 23, and the improvement of the sensitivity of the embodiment is facilitated. The number of turns and the connection mode of the semicircular deformation coil 22 can be set according to actual needs, which are well known to those skilled in the art and will not be described herein.
The two semicircular deformation magnetic poles 23 are respectively wound with a semicircular deformation coil 22, and the directions of the magnetic fields generated by the two semicircular deformation coils 22 after being electrified are consistent. The bearing cylinder 1 is provided with a circumferential positioning groove 12 corresponding to the end part of the semicircular deformation magnetic pole 23, and the circumferential positioning groove 12 plays a circumferential positioning role on one hand for the bearing magnetic core 2 and also serves as a sliding groove for installing the semicircular deformation magnetic pole 23 when the bearing magnetic core 2 is installed. The number of turns and the connection mode of the semicircular deformation coil 22 can be set according to actual needs, which are well known to those skilled in the art and will not be described herein.
A first induction coil 32 and a second induction coil 32 are respectively wound on the first induction pole 31 and the second induction pole 31, and the first induction coil 32 and the second induction coil 32 are connected with a differential output loop together. The differential output loop is used for outputting the magnitude of the induced current in the first induction coil 32 and the second induction coil 32, so as to judge the magnitude of the load; the differential output loop is well known to those skilled in the art and will not be described herein and is not shown in the drawings.
The peripheral surface of the bearing cylinder 1 is provided with a bearing ring groove 11 at the bearing magnetic core 2, and when the bearing cylinder 1 bears heavy load, the bearing ring groove 11 more easily transfers shearing deformation to the semicircular deformation magnetic pole 23.
The working principle of the implementation is as follows: when the force bearing cylinder 1 is not loaded, the semicircular deformation magnetic pole 23 generates a symmetrical magnetic field, so that the magnetic flux passing through the first induction coil 32 and the second induction coil 32 is zero; when the bearing cylinder 1 bears load, the load can make the semicircular deformation magnetic pole 23 generate shearing deformation or torsional deformation, the magnetic field of the deformation coil 22 deviates, the magnetic fluxes of the first induction coil 32 and the second induction coil 32 change, induced current is generated in the first induction coil 32 and the second induction coil 32, and the stress sensing area is increased through superposition of magnetic field deflection and two identical semicircular bearing magnetic cores, so that the magnetic flux change of the induction coils 32 is increased, the change amplitude of the generated induced current is also increased, the sensitivity can be improved by 120% compared with a single columnar magnetic core sensor, and the sensitivity can be improved by 10% compared with a double columnar magnetic core sensor.
In the embodiment, through the deformation of the deformed magnetic pole 23, the two semicircular force bearing magnetic cores are arranged to increase the force sensing area, the sensitivity of the sensor can be improved by 120% compared with a single columnar magnetic core sensor, and can be improved by 10% compared with a double-columnar magnetic core sensor, so that the method is suitable for the complex use working condition of the force sensor in the traction control of the combined high-horsepower tractor, and the method can also be used for measuring the heavy load in other similar environments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. Novel compound traction force sensor includes: the induction magnetic core comprises a first induction magnetic pole and a second induction magnetic pole, a first induction coil is wound on the first induction magnetic pole, a second induction coil is wound on the second induction magnetic pole, and the first induction coil and the second induction coil are connected with an output differential loop together; the magnetic bearing device is characterized in that the bearing cylinder is provided with a bearing magnetic core, the bearing magnetic core comprises two semicircular deformation magnetic poles, and deformation coils are respectively wound on the two semicircular deformation magnetic poles.
2. The novel composite traction sensor according to claim 1, wherein the bearing cylinder is provided with a circumferential positioning groove.
3. The novel compound traction sensor of claim 1 wherein the first and second sense poles are identical in structure.
4. The novel composite traction sensor of claim 1, wherein the first and second induction coils are each arranged parallel to the deformation pole.
5. The novel composite traction force sensor as claimed in claim 1, wherein the circumferential end faces of the two deformation magnetic poles together form a deformation transmission surface which is fitted with the inner circumferential surface of the bearing cylinder.
6. The novel composite traction force sensor as claimed in claim 1, wherein induction magnetic cores are symmetrically arranged in the force bearing cylinder on two axial sides of the force bearing magnetic core.
7. The novel compound traction sensor of claim 1, wherein the first and second sense poles are radially symmetrically disposed.
8. The novel composite traction force sensor as claimed in claim 1, wherein the two semicircular deformed magnetic poles are vertically arranged on the same cross section of the bearing cylinder.
9. The novel composite traction force sensor according to claim 1, wherein a bearing ring groove is arranged on the outer circumferential surface of the bearing cylinder at the bearing magnetic core.
10. Novel compound traction force sensor includes: the induction magnetic core comprises a first induction magnetic pole and a second induction magnetic pole, a first induction coil is wound on the first induction magnetic pole, a second induction coil is wound on the second induction magnetic pole, and the first induction coil and the second induction coil are connected with an output differential loop together; the magnetic bearing device is characterized in that the bearing cylinder is provided with two bearing magnetic cores with the same structure, each bearing magnetic core comprises two semicircular deformation magnetic poles, and deformation coils are respectively wound on the two semicircular deformation magnetic poles.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110490104.5A CN113155325A (en) | 2021-05-06 | 2021-05-06 | Novel composite traction force sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110490104.5A CN113155325A (en) | 2021-05-06 | 2021-05-06 | Novel composite traction force sensor |
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| CN113155325A true CN113155325A (en) | 2021-07-23 |
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| CN202110490104.5A Withdrawn CN113155325A (en) | 2021-05-06 | 2021-05-06 | Novel composite traction force sensor |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010045135A1 (en) * | 2000-04-05 | 2001-11-29 | Masashi Horiuchi | Ring shaped magnetostrictive type torque sensor |
| CN103430000A (en) * | 2011-07-27 | 2013-12-04 | 三角力量管理株式会社 | Dynamic sensor |
| CN109269686A (en) * | 2018-11-26 | 2019-01-25 | 日照海卓液压有限公司 | Silicon steel sheet stack adding type force snesor |
| CN109341904A (en) * | 2018-11-26 | 2019-02-15 | 日照海卓液压有限公司 | Novel traction force snesor |
| CN209027700U (en) * | 2018-11-26 | 2019-06-25 | 日照海卓液压有限公司 | Double dimension force snesors |
-
2021
- 2021-05-06 CN CN202110490104.5A patent/CN113155325A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010045135A1 (en) * | 2000-04-05 | 2001-11-29 | Masashi Horiuchi | Ring shaped magnetostrictive type torque sensor |
| CN103430000A (en) * | 2011-07-27 | 2013-12-04 | 三角力量管理株式会社 | Dynamic sensor |
| CN109269686A (en) * | 2018-11-26 | 2019-01-25 | 日照海卓液压有限公司 | Silicon steel sheet stack adding type force snesor |
| CN109341904A (en) * | 2018-11-26 | 2019-02-15 | 日照海卓液压有限公司 | Novel traction force snesor |
| CN209027700U (en) * | 2018-11-26 | 2019-06-25 | 日照海卓液压有限公司 | Double dimension force snesors |
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Application publication date: 20210723 |