CN210431104U

CN210431104U - Low-noise stepping motor

Info

Publication number: CN210431104U
Application number: CN201921044494.8U
Authority: CN
Inventors: 张新华
Original assignee: Guangzhou Zhongtian Motor Co Ltd
Current assignee: Guangzhou Zhongtian Motor Co Ltd
Priority date: 2019-07-05
Filing date: 2019-07-05
Publication date: 2020-04-28
Anticipated expiration: 2029-07-05

Abstract

The utility model discloses a low-noise stepping motor, which comprises a motor body, a noise reduction shell which is arranged outside the motor body and is formed with a first noise reduction space between the motor body, and a noise reduction mechanism which is arranged in the first noise reduction space, wherein the noise reduction mechanism comprises a threaded rod body which is fixed at the periphery of the motor body, and a noise reduction gear group which is fixed on the inner wall of the noise reduction shell and is meshed with the threaded rod body, a second noise reduction space is arranged at the vertex angle of the noise reduction shell, the adjacent edge of the second noise reduction space and the motor body is obliquely arranged, and a buffer spring is arranged in the second noise reduction space; this low noise step motor noise reduction effect is good, and it is obvious to fall the noise.

Description

Low-noise stepping motor

Technical Field

The utility model belongs to the technical field of the motor, concretely relates to low noise step motor.

Background

The stepping motor is an open-loop control motor which converts an electric pulse signal into angular displacement or linear displacement, is a main executive element in a modern digital program control system, and is extremely widely applied. In the non-overload condition, the rotation speed and stop position of the motor only depend on the frequency and pulse number of the pulse signal, and are not influenced by the load change, when the stepping driver receives a pulse signal, the stepping driver drives the stepping motor to rotate by a fixed angle in a set direction, namely a stepping angle, and the rotation of the stepping motor is operated by one step at the fixed angle. The angular displacement can be controlled by controlling the number of pulses, so that the aim of accurate positioning is fulfilled; meanwhile, the rotating speed and the rotating acceleration of the motor can be controlled by controlling the pulse frequency, so that the aim of speed regulation is fulfilled.

When the existing stepping motor is used, the problem of noise pollution caused by overlarge vibration noise exists, and the existing noise reduction device is difficult to achieve a better noise reduction effect.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model aims at providing a noise reduction effect is good, falls the obvious low noise step motor of making an uproar.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides a low noise step motor, including motor body, and install outside motor body, with motor body between be formed with the first shell of making an uproar that falls of falling the space of making an uproar, and set up in the first mechanism of making an uproar that falls of falling the space of making an uproar, fall the mechanism of making an uproar including the screw rod body of rod that is fixed in the motor body periphery, and be fixed in fall on the shell inner wall of making an uproar, fall the gear train of making an uproar that meshes mutually with the screw rod body, the apex angle department of the shell of making an uproar is equipped with the second and falls the space of making an uproar, the second falls.

Preferably, the bearing direction of the buffer spring is consistent with the vibration direction of the motor body, the vibration direction of the motor body is buffered through the spring, so that the impact force is reduced, and the noise reduction effect is achieved by matching with the design of an independent noise reduction space.

Preferably, the noise reduction gear set and the threaded rod body are all provided with more than one and are arranged in a one-to-one correspondence mode, the noise reduction gear set and the threaded rod body are uniformly distributed on the periphery of the motor body, and noise reduction is achieved through uniform covering.

Preferably, the noise reduction gear set comprises a first gear set and a second gear set which is symmetrical with the first gear set along the threaded rod body, and the threaded rod body is buffered through the two gear sets, so that large vibration generated during operation of the motor body is avoided.

Preferably, the first gear set comprises a support rod fixed with the noise reduction shell and a helical gear mounted on the support rod and meshed with the threaded rod body, the center of the helical gear is supported by the support rod, and the helical gear structure is used for matching with the threaded rod body to realize lifting.

The utility model has the advantages that:

through the design in the first space of making an uproar, via the meshing structure of the gear train of making an uproar and the threaded rod body of making an uproar in the mechanism of making an uproar, turn into the rotational energy of the gear train of making an uproar with the produced vibration energy of motor body, thereby alleviate the vibration condition that motor body produced, and the design in the second space of making an uproar has been arranged, via the mode of establishing with motor body adjacent side is oblique, cooperation damping spring is when alleviating the forward and backward vibration, can also cooperate the mechanism of making an uproar to realize.

Drawings

Fig. 1 is a schematic view of the overall structure of a low-noise stepping motor according to the present invention;

fig. 2 is a front view of a low noise stepping motor according to the present invention;

FIG. 3 is a cross-sectional view A-A of FIG. 2;

fig. 4 is the utility model relates to a mechanism schematic diagram of making an uproar falls in low noise step motor.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Example (b):

referring to fig. 1-4, a low-noise stepping motor comprises a motor body 1, a noise reduction housing 3 which is arranged outside the motor body 1 and is provided with a first noise reduction space 2 between the motor body 1 and the noise reduction housing, and a noise reduction mechanism 4 which is arranged in the first noise reduction space 2, wherein the noise reduction mechanism 4 comprises a threaded rod body 5 fixed on the periphery of the motor body 1 and a noise reduction gear set 6 which is fixed on the inner wall of the noise reduction housing 3 and is meshed with the threaded rod body 5, a second noise reduction space 7 is arranged at the vertex angle of the noise reduction housing 3, the second noise reduction space 7 is obliquely arranged with the adjacent edge of the motor body 1, and a buffer spring 8 is arranged in the second noise reduction space 7.

The bearing direction of the buffer spring 8 is consistent with the vibration direction of the motor body 1, and the vibration direction of the motor body 1 is buffered through the spring, so that the impact force is reduced, and the noise reduction effect is achieved by matching with the design of an independent noise reduction space.

The utility model discloses a motor, including motor body 1, the gear train 6 of making an uproar falls and the screw thread body of rod 5 of making an uproar falls, fall the gear train 6 of making an uproar and the screw thread body of rod 5 all is equipped with more than one, and is the one-to-one setting, fall the gear train 6 of making an uproar and the screw thread body of rod 5 is the equipartition design in motor body 1's periphery, realize evenly covering and fall and make an uproar, fall the gear train 6 of making an uproar including first gear train 61, and with first gear train 61 along the second gear train 62 of screw thread body of rod 5 symmetry, cushion the screw thread body of rod 5 through two gear trains, produce vibration by a wide margin when avoiding motor body 1 operation, first gear train 61 is including with falling the branch 611 that shell 3 fixed mutually falls.

Description of the principle:

install the gear train 6 of making an uproar of falling in the cavity structure through first space 2 and the second space 7 of making an uproar of falling, the threaded rod body 5 and damping spring, realize motor body 1's shock attenuation, and via this cavity structure, realize falling the noise in the absorbing, wherein, the gear train 6 of making an uproar of falling, the threaded rod body 5 and damping spring's the structure of mutually supporting can realize that vibration energy turns into the rotational energy, damping spring carries out the energy storage simultaneously, realize the antiport of the gear train 6 of making an uproar of falling, finally reach vibration/noise reduction's purpose.

The utility model has the advantages that:

The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.

Claims

1. A low noise step motor which characterized in that: the noise reduction mechanism comprises a motor body, a noise reduction shell and a noise reduction mechanism, wherein the noise reduction shell is arranged outside the motor body and is formed with a first noise reduction space between the motor body, the noise reduction mechanism is arranged in the first noise reduction space and comprises a threaded rod body fixed on the periphery of the motor body, and a noise reduction gear set which is fixed on the inner wall of the noise reduction shell and is meshed with the threaded rod body, a second noise reduction space is arranged at the vertex angle of the noise reduction shell, the adjacent edge of the second noise reduction space and the motor body is obliquely arranged, and a buffer spring is arranged in the second noise reduction space.

2. A low noise stepping motor according to claim 1, wherein: the force bearing direction of the buffer spring is consistent with the vibration direction of the motor body.

3. A low noise stepping motor according to claim 1, wherein: the noise reduction gear set and the threaded rod body are provided with more than one gear set and are arranged in a one-to-one correspondence mode.

4. A low noise stepper motor as defined in claim 3, wherein: the noise reduction gear set comprises a first gear set and a second gear set which is symmetrical to the first gear set along the threaded rod body.

5. A low noise stepper motor as defined in claim 4, wherein: the first gear set comprises a supporting rod fixed with the noise reduction shell and a helical gear which is arranged on the supporting rod and meshed with the threaded rod body.