CN216348683U - Axial quick-release fixing structure of magnetic resistance sensor - Google Patents
Axial quick-release fixing structure of magnetic resistance sensor Download PDFInfo
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- CN216348683U CN216348683U CN202122436384.XU CN202122436384U CN216348683U CN 216348683 U CN216348683 U CN 216348683U CN 202122436384 U CN202122436384 U CN 202122436384U CN 216348683 U CN216348683 U CN 216348683U
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Abstract
The utility model belongs to the technical field of magnetoresistive sensor design, and discloses an axial quick-release fixing structure of a magnetoresistive sensor, which comprises: the device comprises a gear shaft, double-piece teeth, a magnet base, a magnet, a bearing support, a sensor support, a magnetic resistance sensor, a first bearing and a second bearing; the front end of the gear shaft is connected with double-plate teeth, and the double-plate teeth are used for driving the gear shaft to rotate; the rear end of the gear shaft is connected with the magnet base through threads; the gear shaft drives the magnet base to rotate; the middle part of the gear shaft is sleeved with a first bearing and a second bearing which are connected with the bearing bracket; the bearing support is used for fixing the two bearings; a magnet is arranged in the magnet base; the sensor bracket is cylindrical; the sensor support front end with bearing support fixed connection, sensor support rear end fixed connection magnetic resistance sensor, the coaxial setting of magnet base is in the sensor support.
Description
Technical Field
The utility model belongs to the technical field of magnetoresistive sensor design, and particularly relates to an axial quick-release fixing structure of a magnetoresistive sensor.
Background
With the development of sensor technology, magnetoresistive sensors are widely used. Axial fixation is the main position fixing pattern and structure of the magnetoresistive sensor, which is an indispensable part.
However, the conventional structure at present mainly uses a flange and a screw to realize the positioning of the fixing piece, and the set screw realizes the coaxial fixation, and the main problems of the structure are that the screw positioning hole is easy to deviate in position, and the alignment installation and the disassembly are not easy.
In order to solve the problems that the position of a positioning hole is easy to deviate and the installation and the disassembly are not easy, the rotation motion is transmitted by double-piece teeth, and the structural mode that a clamping ring is used for fixing a bearing and realizing axial fixation is adopted.
SUMMERY OF THE UTILITY MODEL
The purpose of the utility model is as follows: in order to solve the technical problems in the prior art, the utility model provides an axial quick-release fixing structure of a magnetic resistance sensor, which comprises: the device comprises a gear shaft, double-piece teeth, a magnet base, a magnet, a bearing support, a sensor support, a magnetic resistance sensor, a first bearing and a second bearing;
the front end of the gear shaft is connected with double-plate teeth, and the double-plate teeth are used for driving the gear shaft to rotate;
the rear end of the gear shaft is connected with the magnet base through threads; the gear shaft drives the magnet base to rotate;
the middle part of the gear shaft is sleeved with a first bearing and a second bearing which are connected with the bearing bracket; the bearing support is used for fixing the two bearings;
a magnet is arranged in the magnet base; the sensor bracket is cylindrical; the sensor support front end with bearing support fixed connection, sensor support rear end fixed connection magnetic resistance sensor, the coaxial setting of magnet base is in the sensor support.
Furthermore, a threaded hole is formed in the middle of the rear end face of the gear shaft, and a threaded column matched with the threaded hole is arranged at the front end of the magnet base. This screw hole and screw thread post are used for connecting gear shaft and magnet base for the gear shaft can transmit rotary motion for the magnet base.
Further, the surface of the threaded column of the magnet base is coated with thread sealant. The thread sealant can ensure the connection strength and can normally transmit the rotary motion when rotating positively and negatively.
Further, a coaxial central positioning hole is also arranged in the threaded hole at the rear end of the gear shaft, and the diameter of the central positioning hole is smaller than the small diameter of the threaded hole; the front end of the magnet base is provided with a center positioning shaft matched with the center positioning hole. The center hole positioning and mounting structure can ensure the coaxiality during rotation transmission, less generates the center deviation of a magnetic field and ensures the measurement accuracy.
Further, the structure further includes: and the first clamping ring is sleeved on the gear shaft and is tightly attached to the double-piece teeth to keep away from one side end face of the magnet base. This first rand can ensure that biplate tooth can hug closely and install on the gear shaft, prevents to drop, realizes the function of eliminating the clearance transmission rotary motion.
Further, the structure further includes: and the second clamping ring is sleeved on the gear shaft and is positioned on one side of the second bearing close to the magnetic resistance sensor. The second collar will act simultaneously to secure the second bearing by tightening the inner race of the second bearing, and securing with the outer race.
Furthermore, the joint of the outer surface of the gear shaft and the end face of the first bearing close to one side of the double-piece teeth is provided with an annular shoulder, and the annular shoulder is used for axially limiting the first bearing. The annular shoulder and the boss of the bearing bracket together achieve axial fixation of the first bearing.
The utility model has the advantages and beneficial effects that: all rotating parts are installed in series by one part of the gear shaft, so that the installation is simple; the shaft shoulder is used for fixing and positioning the inner ring of the bearing 1, so that the operation is simple and the positioning is stable during installation and maintenance; the double-piece teeth can stably and stably transfer the rotation motion and eliminate gaps; the double-bearing structure has better stability than a single bearing, reduces the structural instability of a cantilever caused by the single bearing, and realizes effective support; the double clamping rings can realize stable double-end axial fixation, the fixing mode has fewer parts and can realize quick disassembly, and the clamping rings can be disassembled only by using a simple tool, so that other parts can be quickly taken out; the whole structure has few parts and is stable and stable.
Through the effective fixation of this structure, gear shaft and biplate tooth will rotate the transmission and give the magnet base, effectively realize sensor position measurement's function.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of an axial quick-release fixing structure of a magnetoresistive sensor;
the sensor comprises a gear shaft 1, a gear shaft 2, a double-piece tooth 3, a magnet base 4, a magnet 5, a bearing support 6, a sensor support 7, a magnetic resistance sensor 8, a first clamping ring 9, a second clamping ring 10, a first bearing 11 and a second bearing 11.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Features and illustrative embodiments of various aspects of the utility model are described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating examples of the present invention. The present invention is in no way limited to any specific arrangement and method set forth below, but rather covers any improvements, substitutions and modifications in structure, method, and apparatus without departing from the spirit of the utility model. In the drawings and the following description, well-known structures and techniques are not shown to avoid unnecessarily obscuring the present invention.
It should be noted that, in the case of conflict, the embodiments and features of the embodiments of the present invention may be combined with each other, and the respective embodiments may be mutually referred to and cited. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1, other parts of the gear shaft 1, including a first collar 8, a double-piece tooth 2, a first bearing 10, a second bearing 11, a second collar 9, a magnet base 3 and a magnet 4, are connected in series, wherein the radial direction and the axial direction of the outer ring of the first bearing 10 and the outer ring of the second bearing 11 are respectively fixed by an inner hole and a boss of a bearing bracket 5, and the magnet 4 is fixed in the magnet base 3 through an adhesive.
As shown in fig. 1, the double-plate teeth 2 are axially fixed on the gear shaft 1 by the first clamping ring 8, the right side of the inner ring of the first bearing 10 is fixed by the shaft shoulder of the gear shaft 1, the left side of the inner ring of the second bearing 11 is axially fixed by the second clamping ring 9, the magnet base 3 is fixed at the left end part of the gear shaft 1 by threads, thread glue and a central positioning hole, the sensor support 6 is arranged on the left side mounting hole and the end face of the bearing support 5 by a flange boss and mounting screws, and the magnetic resistance sensor 7 is arranged on the sensor support 6 by kidney-shaped holes and screws.
The principle of the installation and fixation mode of the mechanism is as follows: firstly, the double-piece teeth 2 are arranged on the shaft diameter of the gear shaft 1 from the right side, then the first clamping ring 8 is arranged on the right side of the gear shaft 1, and the first clamping ring is clamped into the annular groove to realize the axial fixation of the double-piece teeth 2; installing the first bearing 10 into the gear shaft 1 from the left side, wherein the inner ring of the first bearing 10 is pressed against the shaft shoulder of the gear shaft 1; the previously assembled combination is arranged into the bearing bracket 5 from the right side, so that the outer ring of the first bearing 10 is propped against the right side of the boss of the bearing bracket 5, and then the second bearing 11 is arranged into the gear shaft 1 and the inner hole of the bearing bracket 5 from the left side until the right side of the outer ring of the second bearing 11 is propped against the left side of the boss of the bearing bracket 5; at the moment, the second clamping ring 9 is used for supporting the inner ring of the second bearing 11 and clamping the second clamping ring 9 into the annular groove on the left side of the gear shaft 1, so that the right-side combined body is axially fixed; aligning a central positioning column of the magnet base 3 to the center of the left side of the gear shaft 1, positioning and inserting, simultaneously adding thread glue on the thread of the hole and screwing the thread column into the thread hole; the magnet 4 is glued in the hole of the magnet base 3; then pressing a flange boss of the sensor bracket 6 into a hole of the bearing bracket 5, and fixing by using a screw; finally, the magneto-resistive sensor 7 is installed on the sensor bracket 6 through a waist-shaped hole and a screw, and the installation is completed; the mechanism can realize stable and fixed axial direction, thereby ensuring synchronous transmission of rotary motion and accurate measurement of the sensor on the mechanism.
The quick-release principle of the mechanism is as follows: if quick service work such as maintenance is needed, the assembly of the sensor support 6 and the magnetic resistance sensor 7 is detached from the bearing support 5; then softening the thread glue by using a hot air gun, screwing out the thread column, and detaching the combination of the magnet 4 and the magnet base 3 from the gear shaft 1; the second retainer ring 9 is detached from the annular groove on the left side of the gear shaft 1 by using a tool such as a caliper; finally, the gear shaft 1 is drawn out from the left side of the second bearing 11 to finish the quick disassembly of the mechanism; the appearance visual inspection and simple repair can be carried out in the state, all parts do not need to be dismantled, and the speed is high and the convenience is realized.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present invention, and these modifications or substitutions should be covered within the scope of the present invention.
Claims (7)
1. An axial quick-release fixing structure of a magnetoresistive sensor, characterized in that the structure comprises: the device comprises a gear shaft (1), double-piece teeth (2), a magnet base (3), a magnet (4), a bearing support (5), a sensor support (6), a magnetoresistive sensor (7), a first bearing (10) and a second bearing (11);
the front end of the gear shaft is connected with double-plate teeth, and the double-plate teeth are used for driving the gear shaft to rotate;
the rear end of the gear shaft is connected with the magnet base through threads; the gear shaft drives the magnet base to rotate;
the middle part of the gear shaft is sleeved with a first bearing and a second bearing which are connected with the bearing bracket; the bearing support is used for fixing the two bearings;
a magnet is arranged in the magnet base; the sensor bracket is cylindrical; the sensor support front end with bearing support fixed connection, sensor support rear end fixed connection magnetic resistance sensor, the coaxial setting of magnet base is in the sensor support.
2. The axial quick-release fixing structure of a magnetic resistance sensor as claimed in claim 1, wherein a threaded hole is formed in the middle of the rear end face of the gear shaft, and a threaded column matched with the threaded hole is formed in the front end of the magnet base.
3. The axial quick-release fixing structure of a magnetic resistance sensor as claimed in claim 2, wherein the surface of the threaded column of the magnet base is coated with a thread sealant.
4. The axial quick-release fixing structure of a magnetic resistance sensor as claimed in claim 3, wherein a coaxial center positioning hole is further arranged in the threaded hole at the rear end of the gear shaft, and the diameter of the center positioning hole is smaller than the small diameter of the threaded hole; the front end of the magnet base is provided with a center positioning shaft matched with the center positioning hole.
5. A magnetoresistive sensor axial quick release fixation structure as in claim 4, further comprising: and the first clamping ring (8) is sleeved on the gear shaft and tightly attached to the double-piece teeth to keep away from one side end face of the magnet base.
6. A magnetoresistive sensor axial quick release fixation structure as in claim 4, further comprising: and the second clamping ring (9) is sleeved on the gear shaft and is positioned on one side of the second bearing (11) close to the magnetic resistance sensor.
7. The axial quick-release fixing structure of the magnetic resistance sensor as claimed in claim 6, wherein the joint of the outer surface of the gear shaft and the end surface of the first bearing near one side of the two-piece teeth is provided with an annular shoulder, and the annular shoulder is used for axially limiting the first bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436384.XU CN216348683U (en) | 2021-10-09 | 2021-10-09 | Axial quick-release fixing structure of magnetic resistance sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122436384.XU CN216348683U (en) | 2021-10-09 | 2021-10-09 | Axial quick-release fixing structure of magnetic resistance sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216348683U true CN216348683U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122436384.XU Active CN216348683U (en) | 2021-10-09 | 2021-10-09 | Axial quick-release fixing structure of magnetic resistance sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216348683U (en) |
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2021
- 2021-10-09 CN CN202122436384.XU patent/CN216348683U/en active Active
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