CN218976536U

CN218976536U - Brake stepping motor

Info

Publication number: CN218976536U
Application number: CN202320053793.8U
Authority: CN
Inventors: 钟乘财; 廖文瑜; 梁炼诚
Original assignee: Guangzhou Hanbang Motor Co ltd
Current assignee: Guangzhou Hanbang Motor Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-05-05
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a brake stepping motor, which comprises a screw motor shaft, a front end cover, a rear end cover, a brake rotor, a brake stator, a brake rear cover, a brake pad, a first bearing, magnetic steel, a lock nut and a second bearing.

Description

Brake stepping motor

Technical Field

The utility model relates to the technical field of stepping motors, in particular to a brake stepping motor.

Background

The stepping motor is an open loop control element for converting an electric pulse signal into angular displacement or linear displacement, the angular displacement can be controlled by controlling the number of pulses, so that the purpose of accurate positioning is achieved, meanwhile, the rotating speed and the acceleration of the motor can be controlled by controlling the pulse frequency, so that the purpose of speed regulation is achieved, but the existing traditional stepping motor is not provided with a power-off brake system, when the motor is stopped due to sudden power-off, a main shaft is free to stop, and the motor is suddenly powered off and added with the inertia of mechanical movement during running, so that huge production accidents can be caused, and therefore, the braking stepping motor is designed to brake a motor shaft under the power-off condition, so that the safety performance of the stepping motor is improved.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to provide a brake stepping motor, which is used for solving the problems that the existing stepping motor does not have braking capability and has potential safety hazard under the condition of power failure.

(II) summary of the utility model

In order to solve the technical problems, the utility model provides the following technical scheme: the brake stepping motor comprises a screw motor shaft, a connecting nut, a front end cover, a front shaft sleeve, a rotor core, a stator core, a rear end cover, a brake rotor, a brake stator, a brake rear cover, a brake pad, a locating pin, a first bearing, magnetic steel, a locking nut and a second bearing, wherein the rear end cover is arranged on one side of the brake rear cover, the brake stator is arranged in the brake rear cover, the brake pad is arranged on one side of the brake stator, and the brake rotor is arranged on one side of the brake pad.

Preferably, one end of a screw motor shaft is sleeved in the brake rotor, a positioning pin is embedded in a groove formed in the brake rotor, a second bearing is sleeved at one end of the screw motor shaft, which is close to the brake rotor, and the second bearing is sleeved in the rear end cover.

Preferably, one side of the rear end cover is provided with a stator core, the inside of the stator core is provided with a rotor core, the rotor core is sleeved on a screw motor shaft, magnetic steel is arranged between every two rotor cores, one side of the rotor core is provided with a lock nut, the lock nut is connected on the screw motor shaft in a matched mode, the other side of the rotor core is provided with a front shaft sleeve, and the front shaft sleeve is sleeved in the stator core.

Preferably, a front end cover is arranged on one side of the stator core, a first bearing is sleeved in the front end cover, and the first bearing and the front shaft sleeve are mutually attached.

Preferably, the first bearing is sleeved on a screw motor shaft, and a connecting nut is connected to the screw motor shaft in a matched manner.

(III) beneficial effects

The brake stepping motor provided by the utility model has the advantages that: the brake rotor and the brake stator are arranged on the stepping motor by adding the brake rear cover after the rear end cover, the rear output shaft of the screw motor shaft is prolonged to the clamping groove of the brake rotor, the coaxial concentricity of the brake rotor and the rotor core of the stepping motor is improved, and a lock nut is arranged between the brake rotor and the second bearing, so that the rotation fixing compactness of the screw motor shaft is improved, the working stability of the stepping motor is improved, the permanent magnetic force of the stator inside the permanent magnetic brake can attract the brake pad when the power is off, the brake rotor is attached and fixed through the brake pad, the rotation of the screw motor shaft is further limited, the brake is realized, when current passes through the stator winding of the permanent magnetic brake, the stator removes the acting force to the brake pad due to current demagnetization, and the fixation of the brake pad to the brake rotor is further relieved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a front cross-sectional view of the overall structure of the present utility model.

In the figure: 1. a screw motor shaft; 2. a coupling nut; 3. a front end cover; 4. a front sleeve; 5. a rotor core; 6. a stator core; 7. a rear end cover; 8. a brake rotor; 9. a brake stator; 10. a brake rear cover; 11. a brake pad; 12. a positioning pin; 13. a first bearing; 14. magnetic steel; 15. a lock nut; 16. and a second bearing.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by one of ordinary skill in the art without inventive faculty, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, an embodiment of the present utility model is provided: the brake stepping motor comprises a screw motor shaft 1, a connecting nut 2, a front end cover 3, a front shaft sleeve 4, a rotor iron core 5, a stator iron core 6, a rear end cover 7, a brake rotor 8, a brake stator 9, a brake rear cover 10, a brake block 11, a locating pin 12, a first bearing 13, magnetic steel 14, a lock nut 15 and a second bearing 16, wherein the rear end cover 7 is arranged on one side of the brake rear cover 10, the brake stator 9 is arranged in the interior of the brake rear cover 10, the brake rotor 8 is arranged on one side of the brake stator 9, the brake rotor 8 is arranged on one side of the brake block 11, the brake rotor 8 is sleeved on one end of the screw motor shaft 1, the locating pin 12 is embedded in a groove formed in the brake rotor 8, the screw motor shaft 1 is close to one end of the brake rotor 8, the second bearing 16 is sleeved on the other side of the screw motor shaft 8, the second bearing 16 is sleeved on the rear end cover 7, the rear end cover 7 is provided with the stator iron core 6, the rotor iron core 5 is sleeved in the interior of the stator iron core 6, the rotor iron core 5 is sleeved on the screw motor shaft 1, the magnetic steel 14 is arranged between each two rotor iron cores 5, one side of the rotor iron core 5 is provided with the lock nut 15, the motor shaft sleeve 15 is arranged on one side of the rotor iron core 5, the motor shaft sleeve 15 is matched with the motor shaft nut 1, the first bearing 3 is matched with the first bearing 3 and the front end cover 3, the front end cover is sleeved on the front end cover 3 is matched with the first bearing 3, and is sleeved on the front end cover 3, and is matched with the front end cover 13, which is fixedly connected with the front end cover 3, the working stability of the stepping motor is facilitated;

in use, firstly, the brake back cover 10 is added behind the back end cover 7 to mount the brake rotor 8 and the brake stator 9 on the stepping motor, meanwhile, the back output shaft of the screw motor shaft 1 is prolonged to the clamping groove of the brake rotor 8, the coaxiality of the brake rotor 8 and the rotor core 5 of the stepping motor is improved, and the locking nut 15 is arranged between the brake rotor 8 and the second bearing 16, the rotation fixing tightness of the brake rotor 8 and the screw motor shaft 1 is improved, so that the working stability of the stepping motor is improved, the permanent magnetic force of the stator inside the permanent magnetic brake can attract the brake pad 11 when the stepping motor is powered off, the brake rotor 8 is attached and fixed through the brake pad 11, the rotation of the screw motor shaft 1 is further limited, the braking is realized, when current passes through the stator winding of the permanent magnetic brake, the acting force of the brake pad 11 is removed due to the current demagnetization, and the fixation of the brake pad 11 to the brake rotor 8 is further released, and the stepping motor can normally run.

The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present utility model without undue burden.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. The utility model provides a brake stepper motor, includes lead screw motor shaft (1), coupling nut (2), front end housing (3), preceding axle sleeve (4), rotor core (5), stator core (6), rear end cap (7), brake rotor (8), brake stator (9), brake rear shroud (10), brake block (11), locating pin (12), first bearing (13), magnet steel (14), lock nut (15) and second bearing (16), its characterized in that: one side of the rear brake cover (10) is provided with a rear end cover (7), the inside of the rear brake cover (10) is provided with a brake stator (9), one side of the brake stator (9) is provided with a brake pad (11), and one side of the brake pad (11) is provided with a brake rotor (8).

2. The brake stepper motor of claim 1, wherein: one end of a screw motor shaft (1) is sleeved in the brake rotor (8), a locating pin (12) is embedded and installed in a groove formed in the brake rotor (8), a second bearing (16) is sleeved at one end, close to the brake rotor (8), of the screw motor shaft (1), and the second bearing (16) is sleeved in the rear end cover (7).

3. The brake stepper motor of claim 2, wherein: one side of rear end cap (7) is provided with stator core (6), and the inside of stator core (6) is provided with rotor core (5), and rotor core (5) cup joints on lead screw motor shaft (1), is provided with magnet steel (14) between every two rotor core (5), and one side of rotor core (5) is provided with lock nut (15), and lock nut (15) cooperation is connected on lead screw motor shaft (1), and the opposite side of rotor core (5) is provided with preceding axle sleeve (4), and preceding axle sleeve (4) cup joints in stator core (6).

4. A brake stepper motor as defined in claim 3, wherein: one side of the stator core (6) is provided with a front end cover (3), a first bearing (13) is sleeved in the front end cover (3), and the first bearing (13) and the front shaft sleeve (4) are mutually attached.

5. The brake stepper motor of claim 4 wherein: the first bearing (13) is sleeved on the screw motor shaft (1), and the screw motor shaft (1) is connected with a connecting nut (2) in a matched mode.