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CN-224204907-U - Motor with braking structure

CN224204907UCN 224204907 UCN224204907 UCN 224204907UCN-224204907-U

Abstract

The utility model discloses a motor with a braking structure, which comprises a motor main body, a reduction gearbox, a rotary table and a locking device, wherein the reduction gearbox is arranged at the front end of the motor main body and is in transmission connection with the motor main body, a mounting flange is fixedly arranged on an output shaft of the reduction gearbox, the rotary table is fixedly arranged on the mounting flange through a bolt, the locking device is arranged at the tail part of the motor main body and comprises a connecting shaft rotary table and a locking shaft assembly used for clamping the connecting shaft rotary table, the output shaft of the motor main body extends to the outside from the tail end of the motor main body and is fixedly connected with the connecting shaft rotary table, the locking shaft assembly is arranged at the tail part of the motor main body, and the locking shaft assembly can enable the connecting shaft rotary table to brake in a speed reducing manner through clamping the connecting shaft rotary table. The utility model is suitable for a motor, and the motor is provided with the locking device at the tail part of the motor main body, so that the locking shaft assembly in the locking device can be quickly slowed down to stop rotating in a mode of tightly locking the shaft rotating disc when the motor main body is stopped.

Inventors

  • RUI JUN
  • CHEN JIANHUA
  • GONG SHILONG
  • CHENG JINCHUN
  • LI QIANKUN

Assignees

  • 淮南律动电机制造股份有限公司

Dates

Publication Date
20260505
Application Date
20250408

Claims (6)

  1. 1. An electric motor having a braking structure, comprising: A motor main body (1); The reduction gearbox (2) is arranged at the front end of the motor main body (1) and is in transmission connection with the motor main body (1), and an installation flange (200) is fixedly installed on an output shaft of the reduction gearbox (2); A turntable (3) fixedly mounted on the mounting flange (200) by bolts, so that the turntable (3) is synchronized with the output shaft of the reduction gearbox (2); A locking device (7) arranged at the tail part of the motor main body (1), wherein the locking device (7) comprises a connecting shaft rotating disc (703) and a locking shaft assembly (704) for clamping the connecting shaft rotating disc (703); The output shaft of the motor main body (1) extends to the outside from the tail end of the motor main body (1) and is fixedly connected with the connecting shaft rotating disc (703), so that when the motor main body (1) operates, the connecting shaft rotating disc (703) and the output shaft of the motor main body (1) synchronously rotate, the lock shaft assembly (704) is mounted at the tail part of the motor main body (1), and the lock shaft assembly (704) can clamp the connecting shaft rotating disc (703) to enable the connecting shaft rotating disc (703) to brake in a speed-reducing mode.
  2. 2. The motor with a brake structure according to claim 1, wherein said lock shaft assembly (704) comprises: A holding shoe (7043) which is provided at the edge position of the coupling rotor (703) and can move along the radial direction of the coupling rotor (703), wherein a clamping groove (7044) is provided at one end of the holding shoe (7043) close to the coupling rotor (703); the fixing plate (7040) is fixed at the tail part of the motor main body (1), and the fixing plate (7040) is fixedly connected with the holding tile (7043) through a reset spring (7041); And the driving mechanism is arranged at the tail part of the motor main body (1) and is used for controlling the holding tile (7043) to move along the radial direction of the connecting shaft rotating disc (703).
  3. 3. An electric motor with a braking structure according to claim 2, characterized in that the bottom of the motor body (1) is provided with a tail housing (701), the drive mechanism comprising: a cylinder (700) fixedly mounted on the tail housing (701); a chuck (702) arranged in the tail shell (701), wherein the center of the chuck (702) is connected with a piston rod of the air cylinder (700), the chuck (702) is parallel to the coupling rotary disc (703), a gap is reserved between the chuck (702) and the coupling rotary disc (703), and a wedge-shaped plug pin (7020) is arranged at one side edge of the chuck (702) close to the coupling rotary disc (703); The wedge-shaped insertion opening (7045) is formed in one side, close to the chuck (702), of the holding tile (7043), and the wedge-shaped insertion opening (7045) is in fit with the wedge-shaped insertion opening (7045) to enable the holding tile (7043) to be pushed to move along the radial direction of the coupling rotary disc (703) towards the direction of the coupling rotary disc (703) when the wedge-shaped insertion opening (7020) is gradually inserted into the wedge-shaped insertion opening (7045).
  4. 4. The motor with the braking structure according to claim 3, wherein the tail of the motor main body (1) is provided with a guide groove (101) along the radial direction of the connecting shaft rotating disc (703), the holding shoe (7043) is provided with a sliding block (7042) matched with the guide groove (101), and the sliding block (7042) is slidingly assembled in the guide groove (101).
  5. 5. The motor with a brake structure according to claim 1, wherein a plurality of groups of the lock shaft assemblies (704) are arranged together, and the plurality of groups of the lock shaft assemblies (704) are distributed in an annular array with an axis of the coupling rotor (703) as a center line.
  6. 6. The motor with the braking structure according to claim 1, further comprising a turntable braking device (4) which is installed at the front end of the reduction gearbox (2), wherein the turntable braking device (4) can brake the turntable (3) in a decelerating manner by tightly holding the turntable (3).

Description

Motor with braking structure Technical Field The utility model relates to the technical field of motors, in particular to a motor with a braking structure. Background The motor is used as an important power device and is widely applied to the fields of industry, families, traffic and the like. The high efficiency and reliability make it a core component in modern mechanical systems. However, with increasing demands on motor performance and safety, existing motor designs still suffer from deficiencies in some respects, particularly in terms of braking capability. In the application of electric motors, especially in automation and control systems, a rapid stopping of the rotation of the motor is an important technical requirement. Most current motors continue to run by inertial rotation after power failure, resulting in longer times for stopping. This not only affects the efficiency of the device but may also create safety hazards in case of emergency. For example, in some applications (e.g., elevators, cranes, etc.) where a fast response is required, a slow stop of the motor may result in equipment runaway or casualties. Existing motors often lack an effective auxiliary braking structure, resulting in continued rotation of the rotating component for a period of time after the motor is de-energized. This is due to inertia and design constraints of the motor itself, and some motors cannot immediately generate braking force to prevent rotation when de-energized. This is particularly the case in high speed motors, which have a certain potential safety hazard because of their large moment of inertia and insignificant braking effect, resulting in delayed downtime. Disclosure of utility model The utility model aims to overcome the defects that the motor in the prior art cannot generate braking force immediately to prevent rotation when power is off, so that the braking effect is not obvious, the stop time is delayed, and certain potential safety hazards exist, and provides a motor with a braking structure, which is characterized in that a locking device is arranged at the tail part of a motor main body, a locking shaft assembly in the locking device can be used for controlling the motor main body to stop, the motor is locked by the locking device, so that the time from a high-speed rotation state to a stop state of the load object is greatly reduced, and the safety of the motor in application is improved. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: the utility model discloses a motor with a braking structure, which comprises a motor main body; the reduction gearbox is arranged at the front end of the motor main body and is in transmission connection with the motor main body, and an installation flange is fixedly installed on an output shaft of the reduction gearbox; The turntable is fixedly arranged on the mounting flange through bolts, so that the turntable is synchronous with the output shaft of the reduction gearbox; The locking device is arranged at the tail part of the motor main body and comprises a connecting shaft rotating disc and a locking shaft assembly for clamping the connecting shaft rotating disc; The output shaft of the motor main body extends to the outside from the tail end of the motor main body and is fixedly connected with the coupling rotating disc, so that when the motor main body runs, the coupling rotating disc and the output shaft of the motor main body synchronously rotate, the lock shaft assembly is arranged at the tail part of the motor main body, and the lock shaft assembly can enable the coupling rotating disc to brake in a speed reducing manner by clamping the coupling rotating disc; When the motor is used, firstly, a load object is fixed on the turntable, the turntable is driven to rotate through the motor main body and the reduction gearbox, so that the load object arranged on the turntable is driven to synchronously rotate, the device is provided with a locking device at the tail part of the motor main body, a locking shaft assembly in the locking device can be rapidly decelerated to stop rotating in a mode of tightly locking the turntable when the motor main body is stopped, and therefore, when the load object on the turntable is abnormal and needs to be rapidly decelerated and stopped, the locking device can rapidly decelerate and brake an output shaft of the motor main body, so that the time from a high-speed rotating state to a stopping state of the load object is greatly reduced, and the safety of the device in application is improved. As a further description of the above technical solution, the lock shaft assembly includes: The holding tile is arranged at the edge position of the connecting shaft rotating disc, can move along the radial direction of the connecting shaft rotating disc, and is provided with a clamping groove at one end, close to the connecting shaft rotating disc, of the holding tile; the fixing plat