CN203691192U - Device for installing magnet of magnetic encoder - Google Patents
Device for installing magnet of magnetic encoder Download PDFInfo
- Publication number
- CN203691192U CN203691192U CN201320825953.2U CN201320825953U CN203691192U CN 203691192 U CN203691192 U CN 203691192U CN 201320825953 U CN201320825953 U CN 201320825953U CN 203691192 U CN203691192 U CN 203691192U
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- column section
- magnet steel
- magnet
- motor shaft
- motor
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 57
- 239000010959 steel Substances 0.000 claims abstract description 57
- 230000000903 blocking effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 6
- 230000004323 axial length Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 2
- 239000004020 conductor Substances 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Elevator Door Apparatuses (AREA)
- Power-Operated Mechanisms For Wings (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The utility model belongs to the technical field of door motor and especially relates to a device for installing a magnet of a magnetic encoder. The device solves the technical problem of large axial dimension of the prior art. The device comprises a motor shaft and magnetic steel, wherein the axial end of the motor shaft is provided with an annular positioning slot, and the motor shaft is further provided with a magnetic steel installation seat, of which an end is inserted in the annular positioning slot and the other end extends to the outside of the motor shaft. The magnetic steel is fixed on the magnetic steel installation seat made of non-magnetic conductive materials. Compared with the prior art, the device is reasonable in design, and small in axial dimension, substantially shortens the axial length of the motor and minimizes the integral size of the motor.
Description
Technical field
The utility model belongs to door motor technical field, especially relates to a kind of magnetic encoder magnet erecting device.
Background technology
Elevator door-motor motor is mounted in the transmission device that the control elevator door on elevator door leaves and closes.Itself does not control function some motor, need to realize its running by frequency converter and encoder.The motor of three kinds of forms of ubiquity on market now, permanent-magnet synchronous elevator door machine, interchange door machine and direct-flow gate machine.At present elevator door-motor generally adopts Induction Motor Drive, and the control characteristic of motor is poor, while driving elevator door, exist open the door, close gate control unsmooth, start and stop the shortcomings such as the slow and polarization of speed is poor.The developing direction that door machine drives is to adopt permagnetic synchronous motor, this motor is servo drive motor, have advantages of that control characteristic is good, starting torque is large, drive and can make elevator door switch flexible for elevator door-motor, rapidly steadily, accurate positioning, be the available detection obstacle of closing the door by electric current, can make the quality of a machine have the variation of matter.
But, existing elevator door-motor servo drive motor includes but not limited to following shortcoming: 1, the volume of motor is also larger, particularly axial dimension is larger, cause the weight of whole door mechanism system heavier, inconvenience when dismounting and maintenance, and the weight and the operating power that has strengthened traction machine that have virtually increased the weight of elevator, drive cost to be in and not fall all the time.In addition, because volume is large, serious waste installing space, cause being difficult to rational deployment, structure is compact not.The problem existing in order to solve prior art, people have carried out long-term exploration, have proposed solution miscellaneous.For example, Chinese patent literature discloses a kind of permanent magnet synchronous motor for machine [application number: 201120306890.0], and this device comprises two forward and backward end caps that are coupled to form, and is placed in motor stator, the p-m rotor of end cap inside; The interior axle head of described p-m rotor is provided with an induced magnet; Just right rear end cap position, described and induced magnet position is provided with a magnetic induction encoder.Described end cap is screwed and is formed by front end housing and rear end cap.The axially outer end of described p-m rotor is mounted with synchronous pulley.Although such scheme has improved the partial technical problems of existing door machine permanent magnet motor to a certain extent, but, still cannot fundamentally solve the problems of the technologies described above that (axial dimension is larger, be difficult to realize the thin type design of motor), cause the volume of whole motor larger, thereby cannot meet the motor ultrathin design requirement of elevator door-motor.
Utility model content
The purpose of this utility model is for the problems referred to above, and a kind of magnetic encoder magnet erecting device of the axial dimension that can dwindle motor shaft is provided.
For achieving the above object, the utility model has adopted following technical proposal: this magnetic encoder magnet erecting device comprises motor shaft and magnet steel, be provided with annular positioning groove in the axial one end of motor shaft, on motor shaft, be also provided with one end and insert in described annular positioning groove and the other end extends to the magnet steel mount pad outside motor shaft, described magnet steel is fixed on magnet steel mount pad and this magnet steel mount pad is made up of non-magnet_conductible material.Magnet steel mount pad is made up of non-magnet_conductible material, and this structure can prevent that magnetic field energization and motor shaft from forming loop, causes field weakening, and this non-magnet_conductible material comprises any one in aluminium, copper and plastics; In addition, after the fixing magnet steel of magnet steel mount pad which, not only shorten axial dimension, and more practical, in the elevator door motor applicable to slimming, in meeting instructions for use (effect of magnet steel mount pad), reduce the volume of motor complete machine.
In above-mentioned magnetic encoder magnet erecting device, described magnet steel mount pad comprises the second column section that inserts in the first column section in described annular positioning groove and be arranged on first column section one end, the external diameter of the second described column section is greater than the external diameter of the first column section and forms annular blocking surface between the second column section and the first column section, the first described column section and the second column section be connected as a single entity formula and in the time that the first column section inserts in annular positioning groove described in annular blocking surface abut on the end face of motor shaft.
In above-mentioned magnetic encoder magnet erecting device, the second described column section is provided with magnet steel mounting groove away from one end of the first column section, and described magnet steel is arranged in magnet steel mounting groove and the outer face of magnet steel flushes with the outer face of magnet steel mounting groove.
In above-mentioned magnetic encoder magnet erecting device, the length of the first described column section is longer than the length of the second column section, and described second external diameter of column section and the external diameter of motor shaft equate.
In above-mentioned magnetic encoder magnet erecting device, between described magnet steel mount pad and motor shaft, be adhesively fixed, between described magnet steel and magnet steel mount pad, be adhesively fixed.Be adhesively fixed and be namely connected by adhering liquid mode, which can be enhanced productivity.
In above-mentioned magnetic encoder magnet erecting device, the axial line of the first described column section overlaps with the axial line of the second column section.This structure is convenient to manufacture.
Compared with prior art, the advantage of this magnetic encoder magnet erecting device is: 1, design is more reasonable, and axial dimension is less, has greatly dwindled the axial length and the machine volume that has dwindled motor of motor; 2, magnetic field is difficult for being weakened, and can guarantee equally the practicality of motor; 3, production efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides.
In figure, motor shaft 1, annular positioning groove 11, magnet steel 2, magnet steel mount pad 3, the first column section 31, the second column section 32, magnet steel mounting groove 32a, annular blocking surface 33.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
As shown in Figure 1, this magnetic encoder magnet erecting device comprises motor shaft 1 and magnet steel 2, be provided with annular positioning groove 11 in the axial one end of motor shaft 1, on motor shaft 1, be also provided with one end and insert in described annular positioning groove 11 and the other end extends to the magnet steel mount pad 3 outside motor shaft 1, described magnet steel 2 is fixed on magnet steel mount pad 3 and this magnet steel mount pad 3 is made up of non-magnet_conductible material; Prioritization scheme, the non-magnet_conductible material here comprises any one in aluminium, copper and plastics.In guaranteeing practicality, also dwindle the axial dimension of motor, met the motor ultrathin design requirement of elevator door-motor.
The magnet steel mount pad 3 of the present embodiment comprises the second column section 32 that inserts in the first column section 31 in described annular positioning groove 11 and be arranged on first column section 31 one end, the external diameter of the second described column section 32 is greater than the external diameter of the first column section 31 and forms annular blocking surface 33 between the second column section 32 and the first column section 31, be connected as a single entity formula and abutting on the end face of motor shaft 1 when the first column section 31 inserts in the annular blocking surface 33 of annular positioning groove 11 described in when interior of the first described column section 31 and the second column section 32.Prioritization scheme, the length of the first column section 31 is here longer than the length of the second column section 32, and the external diameter of the second described column section 32 equates with the external diameter of motor shaft 1, and the axial line of the first column section 31 overlaps with the axial line of the second column section 32.
Further, be provided with magnet steel mounting groove 32a in the second column section 32 away from one end of the first column section 31, described magnet steel 2 is arranged in magnet steel mounting groove 32a and the outer face of magnet steel 2 flushes with the outer face of magnet steel mounting groove 32a.
Specifically, in order enhancing productivity, between the magnet steel mount pad 3 of the present embodiment and motor shaft 1, to be adhesively fixed, between described magnet steel 2 and magnet steel mount pad 3, to be adhesively fixed.Which has improved production efficiency.
In the present embodiment, in making to be difficult for after magnetic field energization by the effect of magnet steel mount pad 3, weaken, in addition, one end inserts in motor shaft 1, the other end extends to this structure outside motor shaft 1 can dwindle the axial length of motor shaft 1, virtually dwindle the axial dimension of motor, be more applicable for the ultrathin design requirement of elevator door motor.
Specific embodiment described herein is only to the explanation for example of the utility model spirit.The utility model person of ordinary skill in the field can make various modifications or supplements or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although more used the terms such as motor shaft 1, annular positioning groove 11, magnet steel 2, magnet steel mount pad 3, the first column section 31, the second column section 32, magnet steel mounting groove 32a, annular blocking surface 33 herein, do not got rid of the possibility that uses other term.Use these terms to be only used to describe more easily and explain essence of the present utility model; They are construed to any additional restriction is all contrary with the utility model spirit.
Claims (6)
1. a magnetic encoder magnet erecting device, comprise motor shaft (1) and magnet steel (2), it is characterized in that, described motor shaft (1) is axially provided with annular positioning groove (11) in one end, on motor shaft (1), be also provided with one end and insert in described annular positioning groove (11) and the other end extends to the magnet steel mount pad (3) outside motor shaft (1), described magnet steel (2) is fixed on that magnet steel mount pad (3) is gone up and this magnet steel mount pad (3) is made up of non-magnet_conductible material.
2. magnetic encoder magnet erecting device according to claim 1, it is characterized in that, described magnet steel mount pad (3) comprises the second column section (32) that inserts in the first column section (31) in described annular positioning groove (11) and be arranged on first column section (31) one end, the external diameter of the second described column section (32) is greater than the external diameter of the first column section (31) and forms annular blocking surface (33) between the second column section (32) and the first column section (31), the first described column section (31) and the second column section (32) be connected as a single entity formula and in the time that the first column section (31) inserts in annular positioning groove (11) described in annular blocking surface (33) abut on the end face of motor shaft (1).
3. magnetic encoder magnet erecting device according to claim 2, it is characterized in that, the second described column section (32) is provided with magnet steel mounting groove (32a) away from one end of the first column section (31), and described magnet steel (2) is arranged in magnet steel mounting groove (32a) and the outer face of magnet steel (2) flushes with the outer face of magnet steel mounting groove (32a).
4. according to the magnetic encoder magnet erecting device described in claim 2 or 3, it is characterized in that, the length of the first described column section (31) is longer than the length of the second column section (32), and the external diameter of the second described column section (32) equates with the external diameter of motor shaft (1).
5. according to the magnetic encoder magnet erecting device described in claim 2 or 3, it is characterized in that, between described magnet steel mount pad (3) and motor shaft (1), be adhesively fixed, between described magnet steel (2) and magnet steel mount pad (3), be adhesively fixed.
6. magnetic encoder magnet erecting device according to claim 5, is characterized in that, the axial line of the first described column section (31) overlaps with the axial line of the second column section (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825953.2U CN203691192U (en) | 2013-12-13 | 2013-12-13 | Device for installing magnet of magnetic encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320825953.2U CN203691192U (en) | 2013-12-13 | 2013-12-13 | Device for installing magnet of magnetic encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203691192U true CN203691192U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320825953.2U Expired - Lifetime CN203691192U (en) | 2013-12-13 | 2013-12-13 | Device for installing magnet of magnetic encoder |
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| Country | Link |
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| CN (1) | CN203691192U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070157A (en) * | 2017-01-18 | 2017-08-18 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of automobile brake system brushless electric machine |
| CN110892613A (en) * | 2017-07-14 | 2020-03-17 | 三菱电机株式会社 | Rotating electrical machine |
| WO2023245628A1 (en) * | 2022-06-24 | 2023-12-28 | 威刚科技股份有限公司 | Motor |
-
2013
- 2013-12-13 CN CN201320825953.2U patent/CN203691192U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107070157A (en) * | 2017-01-18 | 2017-08-18 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of automobile brake system brushless electric machine |
| CN110892613A (en) * | 2017-07-14 | 2020-03-17 | 三菱电机株式会社 | Rotating electrical machine |
| US11264859B2 (en) | 2017-07-14 | 2022-03-01 | Mitsubishi Electric Corporation | Rotary electric machine |
| WO2023245628A1 (en) * | 2022-06-24 | 2023-12-28 | 威刚科技股份有限公司 | Motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |