CN213243746U - Permanent magnet brushless speed reducing motor with electromagnetic brake - Google Patents

Abstract

The utility model discloses a take electromagnetic brake's brushless gear motor of permanent magnetism, belong to brake gear motor, be applicable to AGV car and mobile robot and home elevator, including a brushless gear motor of permanent magnetism and an electromagnetic brake and a hollow sleeve, the brushless gear motor of permanent magnetism rotates and the center pin both ends are fixed and inside includes planetary gear reduction mechanism's permanent magnet brushless motor, hollow sleeve one end is connected with the brushless gear motor shell of permanent magnetism and can rotates along with it, the hollow sleeve other end is connected with electromagnetic brake's brake disc, when electromagnetic brake shell and the brushless gear motor center pin both ends are all fixed, whether accessible control electromagnetic brake coil switched on controls it and brakes permanent magnet brushless gear motor shell and hollow sleeve.

Description

Permanent magnet brushless speed reducing motor with electromagnetic brake

Technical field this name is a permanent magnetism brushless gear motor's of taking electromagnetic brake utility model relates to a motor, is a brake gear motor very much, is applicable to automated guided transporting vehicle AGV and mobile robot and home use elevator.

Background art many existing drive assemblies of an Automatic Guided Vehicle (AGV) and a mobile robot are driven by a motor, and a motor housing and the drive wheel are separated to cause the structure of the whole drive assembly to be dispersed and complicated, so that the cost of the whole drive assembly is increased. The existing AGV has a differential steering type vehicle model, a left motor and a right motor respectively drive a left driving wheel and a right driving wheel which respectively correspond to the middle part of the vehicle body, steering can be realized by controlling the speed ratio of the left driving wheel and the right driving wheel, the turning radius is small, even the vehicle can rotate in situ, but a motor shell and the driving wheels are still separated and cannot be integrated. The household elevator, especially the traction motor of the common traction type household elevator, generally needs an encoder with high cost no matter whether a speed reducing mechanism exists or not, and the whole traction mechanism is heavy. The permanent magnet brushless speed reducing motor with the fixed central shaft and the rotating shell and the built-in planetary gear speed reducing mechanism is widely used on the existing electric bicycle, and the motor shell is provided with a Hall position sensor, can be integrated with a driving wheel, has small volume and light weight, is convenient to install and use, but is not suitable for an Automatic Guided Vehicle (AGV) and a mobile robot which need an electromagnetic brake and a home elevator due to lack of the electromagnetic brake.

The invention aims to avoid some defects of the existing motors for an Automatic Guided Vehicle (AGV) requiring an electromagnetic brake, a mobile robot and a home elevator, and provides a brake speed reducing motor which has a compact structure and is convenient to install and use. The utility model provides a take electromagnetic brake's brushless gear motor's of permanent magnetism utility model includes a brushless gear motor of permanent magnetism and an electromagnetic brake and a hollow sleeve, its characterized in that: the permanent magnet brushless speed reducing motor is characterized in that the shell rotates, two ends of the central shaft are fixed, the permanent magnet brushless speed reducing motor is internally provided with a planetary gear speed reducing mechanism, one end of the hollow sleeve is connected with the shell of the permanent magnet brushless speed reducing motor and can rotate along with the shell of the permanent magnet brushless speed reducing motor, the other end of the hollow sleeve can be placed in the central hole of the electromagnetic brake and is connected with a brake disc of the electromagnetic brake, the central shaft of the permanent magnet brushless speed reducing motor can penetrate through the hollow sleeve, and when the shell of the electromagnetic brake and two ends of the central shaft of the permanent magnet brushless speed reducing motor are fixed, whether the electromagnetic brake coil is powered on or not can be controlled to brake the shell of the permanent magnet brushless speed reducing motor. The electromagnetic brake of the permanent magnet brushless speed reduction motor with the electromagnetic brake is a power-off type electromagnetic brake. The inner part of one end, away from the shell of the permanent magnet brushless speed reduction motor, of the hollow sleeve of the permanent magnet brushless speed reduction motor with the electromagnetic brake is also used for installing a bearing with a supporting function so as to ensure the concentricity. The utility model has the advantages that: the housing of the permanent magnet brushless speed reducing motor can be integrated with the driving wheel, so that the structure is more compact, and the mounting and the use are more convenient; (two) to the permanent magnet brushless motor who has the same stator structure, have reducing mechanism in with do not have reducing mechanism compare, the number of pulses of the per round motor hall position sensor output of motor output shaft that has reducing mechanism in is more, so the utility model discloses a permanent magnet brushless reducing motor need not the encoder and just can reach application requirement's precision, and is also simpler than the motor control that needs to use the encoder. To sum up the utility model provides a more compact structure and installation use more convenient brake gear motor can more be applicable to the differential that needs have electromagnetic brake and turns to formula automated guided transporting vehicle AGV and mobile robot and home use elevator.

Description of the drawings fig. 1 is a schematic structural diagram of a preferred embodiment of the present invention.

Fig. 2 is a cross-sectional view of a hollow sleeve according to a preferred embodiment of the present invention. In the figure: 1. a screw hole; 2. a screw hole; 3. a keyway.

The present invention will be further described and illustrated with reference to the accompanying drawings and a preferred embodiment thereof. As shown in fig. 1, a permanent magnet brushless speed reducing motor with an electromagnetic brake according to a preferred embodiment of the present invention includes a permanent magnet brushless speed reducing motor, an electromagnetic brake and a hollow sleeve, wherein the permanent magnet brushless speed reducing motor is a permanent magnet brushless motor with a housing rotating and a central shaft fixed at both ends and internally including a planetary gear speed reducing mechanism; as shown in fig. 2, there are screw 1 and screw 2 in hollow sleeve one end, the hollow sleeve other end has keyway 3, the one end that hollow sleeve has screw 1 and screw 2 passes through screwed connection with the brushless gear motor shell of permanent magnetism and can rotate along with it, the hollow sleeve has the other end of keyway 3 to be put into in the electromagnetic brake centre bore and pass through the parallel key with the brake disc of electromagnetic brake and be connected, the brushless gear motor center pin of permanent magnetism can be followed hollow sleeve and passed, when the equal fix with screw in use in electromagnetic brake shell and the brushless gear motor center pin both ends the utility model discloses a when in the frame of equipment, can pass through control whether the electromagnetic brake coil of a preferred embodiment is circular telegram and is controlled whether it brakes permanent magnetism brushless gear motor shell and hollow sleeve. The utility model discloses a take electromagnetic brake's brushless gear motor of permanent magnetism's electromagnetic brake of preferred embodiment is the electricity loss formula electromagnetic brake, can brake permanent magnetism brushless gear motor shell and hollow sleeve when its coil does not switch on, otherwise, all does not have the braking action to permanent magnetism brushless gear motor shell and hollow sleeve when its coil switches on. The utility model discloses a take permanent magnet brushless gear motor's of electromagnetic brake hollow sleeve to keep away from permanent magnet brushless gear motor shell one end inside can also be used for installing a bearing that has the supporting role, and permanent magnet brushless gear motor center pin can pass the bearing hole and support hollow sleeve through the bearing to guarantee the concentricity. Although the present invention has been disclosed in connection with a preferred embodiment, it is intended that the scope of the invention be limited not by this detailed description, but rather by the following claims.

Claims (3)

1. The utility model provides a take brushless gear motor of permanent magnetism of electromagnetic brake includes a brushless gear motor of permanent magnetism and an electromagnetic brake and a hollow sleeve, its characterized in that: the permanent magnet brushless speed reducing motor rotates for the shell and center pin both ends are fixed and inside includes the permanent magnet brushless motor of planetary gear reduction gears, hollow sleeve one end with permanent magnet brushless speed reducing motor shell is connected and can rotates along with it, the hollow sleeve other end can be put into in the electromagnetic brake centre bore and with electromagnetic brake's brake disc is connected, permanent magnet brushless speed reducing motor center pin can be followed pass in the hollow sleeve, works as the electromagnetic brake shell with when permanent magnet brushless speed reducing motor center pin both ends are all fixed, can be through control whether the circular telegram of electromagnetic brake coil comes control whether it is right permanent magnet brushless speed reducing motor shell with hollow sleeve brakies.

2. The permanent magnet brushless speed reducing motor with the electromagnetic brake as claimed in claim 1, wherein: the electromagnetic brake is a power-off electromagnetic brake.

3. A permanent magnet brushless geared motor with electromagnetic brake according to claim 1 or claim 2, wherein: the inner part of one end of the hollow sleeve, which is far away from the shell of the permanent magnet brushless speed reducing motor, is also used for installing a bearing with a supporting function so as to ensure the concentricity.

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