CN201656695U - Motor with encoder - Google Patents
Motor with encoder Download PDFInfo
- Publication number
- CN201656695U CN201656695U CN201020110264XU CN201020110264U CN201656695U CN 201656695 U CN201656695 U CN 201656695U CN 201020110264X U CN201020110264X U CN 201020110264XU CN 201020110264 U CN201020110264 U CN 201020110264U CN 201656695 U CN201656695 U CN 201656695U
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- CN
- China
- Prior art keywords
- motor
- magnetic steel
- steel ring
- hall element
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a motor with an encoder, which comprises a permanent magnet synchronous motor. A Hall element fixing plate is fixed on the outer bearing cover of the motor. A Hall element is installed on the Hall element fixing plate. A magnetic steel ring support is installed on the shaft of the motor through a key. A magnetic steel ring is fixed on the magnetic steel ring support. A shaft retainer ring is installed on the external side of the magnetic steel ring support. The magnetic steel ring support is fixed on the shaft of the motor through the shaft retainer ring and the key. The Hall element and the magnetic steel ring form the encoder and the speed of the motor can be adjusted through the feedback signals of the encoder. Thereby, the utility model has the advantages that the structure is reasonable and compact, the speed adjustment of the permanent magnet synchronous motor can be realized, the equipment maintenance cost is reduced, the equipment utilization ratio is improved and the energy saving effect is obvious.
Description
Technical field:
The utility model relates to a kind of motor, specifically a kind of motor with encoder.
Background technology:
We know, at present, the frequency control motor non-shaft stretching end, spindle nose is installed encoder, and the fan heat radiation can't be installed again, can only install axial flow blower additional, in the place of speed adjustable range less than 1: 2, causes waste as blower fan, water pump even load.And axial flow blower need connect power supply in addition, uses and operates very inconveniently, costs an arm and a leg.Chinese patent 200820159802.7 discloses a kind of mounting structure of motor encoder, it comprises little axle and support, one end of little axle is the disk of band seam groove, little axle is located by connecting by seam with the electric machine main shaft non-shaft stretching end, support and bearing end cover are located by connecting by seam, are connected by shaft coupling with little axle by the encoder of seam positioner on support.Because being connected between being connected of being connected between encoder and support, little axle and electric machine main shaft, support and the bearing end cover all adopts seam to be located by connecting, therefore can guarantee the axiality between encoder and the little axle, improve encoder motor speed measurement precision and safe operating life.
Summary of the invention:
Technical problem to be solved in the utility model is to overcome above-mentioned the deficiencies in the prior art, provides kind rational in infrastructure, compact, easy to use, flexible, the motor of band encoder with low cost.
The technical scheme in the invention for solving the above technical problem is: a kind of motor with encoder, it comprises a permagnetic synchronous motor, it is characterized in that motor bearings covers outward is connected and fixed a Hall element fixed head, on the Hall element fixed head Hall element is installed; By key one magnetic steel ring support is installed on motor shaft, is fixed with magnetic steel ring on the magnetic steel ring support, shaft block ring is equipped with in the magnetic steel ring support outside, by shaft block ring and key the magnetic steel ring support is fixed on the motor shaft.
The said magnetic steel ring support of the utility model outside is provided with a cover plate, and cover plate is fixed on the electric motor end cap.Fix a fan by key and shaft block ring on the said motor shaft spindle nose of the utility model.
The utility model covers the installation Hall element owing to adopt said structure outside motor bearings, the magnetic steel ring with its rotation is installed on the motor shaft, and Hall element and magnetic steel ring are formed an encoder, by the encoder feedback signal motor are carried out speed governing.Against existing technologies, the utility model is rational in infrastructure, compact, utilizes the small space between motor bearings enclosing cover and the fan that one encoder is installed, and it is applicable to that permagnetic synchronous motor carries out speed governing and uses, and the variable-frequency motor that can be used as general control place uses.Reduce cost of equipment maintenance, improved the equipment service efficiency; Energy-saving effect is obvious.
Description of drawings:
Fig. 1 is the utility model structural representation;
Fig. 2 is the structural representation of the utility model magnetic steel ring;
Fig. 3 is the utility model Hall element scheme of installation.
Number in the figure is: 1. motor shaft, 2. bearing, 3. key, 4. outer bearing cover, 5. Hall element fixed head, 6. Hall element, 7. end cap, 8. lead-out wire, 9. magnetic steel ring, 10. fan, 11. magnetic steel ring supports, 12. cover plates, 13. shaft block rings.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
As can be seen from Figure 1, a kind of motor with encoder, it comprises a permagnetic synchronous motor, the composition structure of permagnetic synchronous motor is identical with prior art.It is provided with motor shaft 1, bearing 2, bearing end cover 4, end cap 7 or the like.Bearing 2 comprises bearing inner race and bearing outer ring.Motor shaft 1 and bearing inner race interference fit.Bearing outer ring, bearing end cover 4 and cover plate 12 all are fixed on the end cap 7.
Characteristics of the present utility model are: be connected and fixed a Hall element fixed head 5 on the motor bearings enclosing cover 4, Hall element 6 is installed on the Hall element fixed head 5, connect signal lead-out wire 8 on the Hall element 6.The installation of Hall element 6 differs 120 ° of electrical degrees as shown in Figure 3 between three Hall elements.On motor shaft 1, a magnetic steel ring support 11 is installed, is fixed with magnetic steel ring 9 on the magnetic steel ring support 11 by key 3, the structure of magnetic steel ring 9 as shown in Figure 2, its number of poles equates or its multiple with the rotor number of poles.Shaft block ring 13 is equipped with in magnetic steel ring support 11 outsides, by shaft block ring 13 and key 3 magnetic steel ring support 11 is fixed on the motor shaft 1.When motor rotates, motor shaft 1 drives magnetic steel ring support 11 and rotates, thereby make magnetic steel ring 9 and Hall element 6 form relative motion, Hall element 6 tests out magnet steel polarity, with the magnet steel signal transition is the signal of telecommunication, deliver to the outer frequency modulator of motor by lead-out wire 8, Hall element 6 and magnetic steel ring 9 have just constituted a plainly-packed encoder that gets.
The said magnetic steel ring support of the utility model 11 outsides are provided with a cover plate 12, and cover plate 12 also is fixed on the electric motor end cap 7.Motor shaft 1 outside cooperates with cover plate 12 by big gap.Fix a fan 10 by key and shaft block ring on said motor shaft 1 spindle nose of the utility model, be used for heat extraction, heat radiation.
The utility model utilizes the small space between motor bearings enclosing cover and the fan that one encoder is installed, and by the encoder feedback signal motor is carried out speed governing.It is rational in infrastructure, compact, and it is applicable to that permagnetic synchronous motor carries out speed governing and uses.Reduce cost of equipment maintenance, improved the equipment service efficiency; Energy-saving effect is obvious.
Claims (3)
1. motor with encoder, it comprises a permagnetic synchronous motor, it is characterized in that motor bearings covers outward to be connected and fixed a Hall element fixed head, on the Hall element fixed head Hall element is installed; By key one magnetic steel ring support is installed on motor shaft, is fixed with magnetic steel ring on the magnetic steel ring support, shaft block ring is equipped with in the magnetic steel ring support outside, by shaft block ring and key the magnetic steel ring support is fixed on the motor shaft.
2. the motor of band encoder according to claim 1 is characterized in that: the said magnetic steel ring support outside is provided with a cover plate, and cover plate is fixed on the electric motor end cap.
3. the motor of band encoder according to claim 1 is characterized in that: fix a fan by key and shaft block ring on the said motor shaft spindle nose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020110264XU CN201656695U (en) | 2010-02-03 | 2010-02-03 | Motor with encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020110264XU CN201656695U (en) | 2010-02-03 | 2010-02-03 | Motor with encoder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201656695U true CN201656695U (en) | 2010-11-24 |
Family
ID=43121927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020110264XU Expired - Fee Related CN201656695U (en) | 2010-02-03 | 2010-02-03 | Motor with encoder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201656695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118082A (en) * | 2011-03-16 | 2011-07-06 | 梁昌勇 | Device for fixing finger-shaped sensor |
| CN103683789A (en) * | 2013-12-04 | 2014-03-26 | 兰州飞行控制有限责任公司 | Mounting structure of Hall sensor of dual-redundancy permanent magnet brushless motor |
| WO2022110897A1 (en) * | 2020-11-25 | 2022-06-02 | 台州正立电机有限公司 | Device for testing performance of non-inductive control system of permanent magnet motor |
-
2010
- 2010-02-03 CN CN201020110264XU patent/CN201656695U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118082A (en) * | 2011-03-16 | 2011-07-06 | 梁昌勇 | Device for fixing finger-shaped sensor |
| CN103683789A (en) * | 2013-12-04 | 2014-03-26 | 兰州飞行控制有限责任公司 | Mounting structure of Hall sensor of dual-redundancy permanent magnet brushless motor |
| CN103683789B (en) * | 2013-12-04 | 2015-11-25 | 兰州飞行控制有限责任公司 | A kind of two remaining permanent magnetic brushless Hall sensor mounting structure |
| WO2022110897A1 (en) * | 2020-11-25 | 2022-06-02 | 台州正立电机有限公司 | Device for testing performance of non-inductive control system of permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101124 Termination date: 20110203 |