CN219067982U

CN219067982U - Stepping motor with noise reduction effect

Info

Publication number: CN219067982U
Application number: CN202222925540.3U
Authority: CN
Inventors: 赵云海; 浦刚; 陈泽修; 程愿; 谭静
Original assignee: Shenzhen Baishan Electromechanical Integration Technology Co ltd
Current assignee: Shenzhen Baishan Electromechanical Integration Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-05-23
Anticipated expiration: 2032-11-03

Abstract

The utility model discloses a stepping motor with a noise reduction effect, which comprises a shell, a fixed damping mechanism and a sound-absorbing cotton plate, wherein the fixed damping mechanism is arranged on the shell; a shell: the left side surface is fixed with a cover plate through a bolt, and the front side surface in the shell is fixed with two fixing plates; fixed damper: including bi-directional screw rod, splint, step motor body, backup pad, shock pad, worm wheel and worm, the middle part of worm wheel leading flank rotates with the left side of leading flank in the casing and is connected, the rear end of bi-directional screw rod rotates with the left side of trailing flank in the casing and is connected, the front end of bi-directional screw rod and the middle part fixed connection of worm wheel trailing flank, this step motor that has the effect of making an uproar that falls can produce the step motor body during operation vibration absorption, avoids step motor low-speed during operation to produce machinery altogether to reduce the noise that the vibration produced, and can be to the further absorption of the noise that the step motor body transmitted, the noise of effectual reduction step motor during operation.

Description

Stepping motor with noise reduction effect

Technical Field

The utility model relates to the technical field of stepping motors, in particular to a stepping motor with a noise reduction effect.

Background

A stepper motor is a motor that converts an electrical pulse signal into a corresponding angular or linear displacement. Each time a pulse signal is input, the rotor rotates by an angle or further, the output angular displacement or linear displacement is proportional to the input pulse number, and the rotating speed is proportional to the pulse frequency. Thus, the stepping motor is also called a pulse motor.

Through retrieving, chinese patent discloses a stepper motor, application number 20111048911. X, is in including casing (1) and stator (2) and rotor (3) of setting in casing (1), stepper motor still includes binding post (4), binding post (4) with stator (2) fixed connection, binding post (4) with stator (2) electricity is connected. Compared with the prior art, the stepping motor avoids direct injection molding of the electric wire, can adopt the electric wire at normal temperature, reduces the cost and avoids the danger of wire breakage. Meanwhile, the stator (2) with the wiring terminal (4) can be matched with various different wires, the patent has the advantages of improving the universality and reducing the processing and management cost, but the patent does not have the noise reduction effect, and the stepping motor can generate vibration noise when working, and vibration mainly comes from two aspects, namely the step resolution (step) of the stepping motor; on the other hand, adverse mode reactions from chopping and Pulse Width Modulation (PWM), particularly at low speeds, stepper motors are more prone to resonance, producing vibration noise

Disclosure of Invention

In view of the problems existing in the prior art, the utility model discloses a stepping motor with noise reduction effect, which adopts the technical scheme that the stepping motor comprises a shell, a fixed damping mechanism and a sound-absorbing cotton plate;

a shell: the left side surface is fixed with a cover plate through a bolt, and the front side surface in the shell is fixed with two fixing plates; fixed damper: the novel stepping motor comprises a bidirectional screw, clamping plates, a stepping motor body, a supporting plate, a shock pad, a worm wheel and a worm, wherein the middle part of the front side surface of the worm wheel is rotationally connected with the left side of the front side surface in a shell, the rear end of the bidirectional screw is rotationally connected with the left side of the rear side surface in the shell, the front end of the bidirectional screw is fixedly connected with the middle part of the rear side surface of the worm wheel, the two ends of the bidirectional screw respectively penetrate through screw holes on the lower sides of the opposite side surfaces of the two clamping plates, the clamping plates are L-shaped, the two ends of the supporting plate are respectively fixedly connected with the left side of the inner bottom surface of the shell and the lower sides of the right side surface in the shell, the stepping motor body is placed on the supporting plate, the upper surface of the supporting plate, the opposite side surfaces of the two clamping plates and the right side surface in the shell are respectively fixedly provided with shock pads, the side surfaces of the shock pad are in contact with the side surfaces of the stepping motor body, the two ends of the worm are respectively rotationally connected with the middle parts of the opposite side surfaces of the two fixing plates, and the two fixed shock absorbing mechanisms are meshed with the worm, and the fixed shock pad can absorb the vibration generated when the stepping motor body works, the mechanical noise is avoided, and the vibration generated when the stepping motor works at low speed is low speed, the vibration is reduced;

sound-absorbing cotton board: for the U type, the bottom in the casing is fixed to the cotton board of inhaling, inhale the outside that the cotton board of inhaling is located the step motor body, inhale the side fixed connection of the cotton board of inhaling the medial surface and the perforation abatvoix of U type, the cotton board of inhaling that sets up can be to the further absorption of the noise that the step motor body transmitted, avoids the noise to transmit outside.

As a preferable technical scheme of the utility model, the motor further comprises a sound insulation plate, wherein the sound insulation plate is cylindrical, the side surface of the sound insulation plate is fixedly connected with the inner side surface of the shell, and the sound insulation plate can further improve the sound insulation capability of the shell and further reduce noise transmitted to the outside when the stepping motor works.

As a preferable technical scheme of the utility model, the utility model further comprises a hand wheel, wherein the hand wheel is rotatably arranged on the left side surface of the left fixed plate, a shaft in the middle of the right end of the hand wheel passes through a through hole in the left fixed plate and is fixedly connected with the left end of the worm, and the arranged hand wheel can enable people to conveniently rotate the worm, so that the stepping motor can be conveniently detached when people overhaul.

As a preferable technical scheme of the utility model, the telescopic device further comprises two telescopic rods, one ends of the outer sides of the two telescopic rods are fixedly connected with the lower sides of the front side and the rear side in the shell respectively, one ends of the inner sides of the two telescopic rods are fixedly connected with the side surfaces of the lower ends of the two clamping plates respectively, and the arranged telescopic rods can guide the clamping plates so that the clamping plates can move horizontally.

As a preferable technical scheme of the utility model, the utility model further comprises a push rod, wherein the push rod is fixed in the middle of the right side surface of the cover plate, and corresponds to the stepping motor body, and the arranged push rod can tightly push the tail part of the stepping motor to prevent the stepping motor body from displacement during working.

As a preferable technical scheme of the utility model, the utility model further comprises a second shock pad, wherein the second shock pad is fixed on the right side surface of the ejector rod, and the arranged second shock pad can prevent vibration generated by the stepping motor from being transmitted to the shell through the ejector rod.

As a preferable technical scheme of the utility model, the utility model further comprises four ear plates, wherein the four ear plates are respectively fixed at the lower sides of the front side surface and the rear side surface of the shell, and the arranged ear plates can enable the shell to be conveniently fixed at a using position.

The utility model has the beneficial effects that: according to the utility model, the worm is used for driving the worm wheel to rotate, so that the worm wheel drives the bidirectional screw to rotate, the bidirectional screw drives the two clamping plates to move towards the middle part simultaneously, the two clamping plates clamp the stepping motor body, the clamping plates, the supporting plate and the damping pad on the shell can be tightly contacted with the stepping motor body, the damping pad absorbs vibration generated by the stepping motor body when in operation, mechanical resonance is avoided when the stepping motor works at a low speed, thereby reducing noise generated by the vibration, meanwhile, the noise transmitted by the stepping motor body can be further absorbed through the perforated acoustic board and the acoustic cotton board, the noise is prevented from being transmitted to the outside, the sound insulation capability of the shell can be further improved through the acoustic board, the noise transmitted to the outside when the stepping motor works can be further reduced, people can conveniently rotate the worm through the hand wheel, the stepping motor can be conveniently detached when people overhaul, the clamping plates can be guided through the telescopic rod, the clamping plates can keep horizontally moving, the tail part of the stepping motor body can be tightly propped up through the ejector rod, displacement of the stepping motor body when in operation is prevented, the vibration generated by the stepping motor can be prevented from being transmitted to the shell through the ejector rod when in operation, the vibration generated by the second damping pad, the stepping motor can be prevented from being transmitted to the shell through the ejector rod, the sound absorption capability can be conveniently fixed at the position of the stepping motor through the convenient use through the lug plate.

Drawings

FIG. 1 is a schematic diagram of the front structure of the present utility model;

FIG. 2 is a schematic view of the back structure of the present utility model;

FIG. 3 is a schematic diagram of the internal structure of the present utility model.

In the figure: 1 shell, 2 apron, 3 bolts, 4 fixed plates, 5 fixed damper, 51 bi-directional screw, 52 splint 53 step motor body, 54 backup pad, 55 shock pad, 56 worm wheel, 57 worm, 6 inhale the sound cotton board, 7 perforate the sound board, 8 acoustic celotex board, 9 hand wheels, 10 telescopic links, 11 ejector pins, 12 second shock pad, 13 otic placode.

Detailed Description

Example 1

As shown in fig. 1 to 3, the utility model discloses a stepping motor with noise reduction effect, which adopts the technical scheme that the stepping motor comprises a shell 1, a fixed damping mechanism 5 and a sound-absorbing cotton plate 6;

the shell 1: the left side surface is fixed with a cover plate 2 through a bolt 3, and the front side surface in the shell 1 is fixed with two fixing plates 4;

fixed damper 5: comprises a bidirectional screw rod 51, clamping plates 52, a stepping motor body 53, a supporting plate 54, a shock pad 55, a worm wheel 56 and a worm 57, wherein the middle part of the front side surface of the worm wheel 56 is rotationally connected with the left side of the inner front side surface of the shell 1, the rear end of the bidirectional screw rod 51 is rotationally connected with the left side of the inner rear side surface of the shell 1, the front end of the bidirectional screw rod 51 is fixedly connected with the middle part of the rear side surface of the worm wheel 56, the two ends of the bidirectional screw rod 51 respectively penetrate through screw holes on the lower sides of the opposite side surfaces of the two clamping plates 52, the clamping plates 52 are L-shaped, the supporting plate 54 is L-shaped, the two ends of the supporting plate 54 are respectively fixedly connected with the left side of the inner bottom surface of the shell 1 and the lower side surface of the inner right side surface of the shell 1, the stepping motor body 53 is arranged on the supporting plate 54, the shock pad 55 is fixed on the upper surface of the supporting plate 54, the opposite side surfaces of the two clamping plates 52 and the right side surface in the shell 1, the side surfaces of the shock pad 55 are contacted with the side surfaces of the stepping motor body 53, the two ends of the worm 57 are respectively connected with the middle parts of the opposite side surfaces of the two fixed plates 4 in a rotating way, the worm 57 is meshed with the worm wheel 566, the worm 57 drives the worm wheel 5 to rotate, the worm wheel 56 drives the bidirectional screw 51 to rotate, the bidirectional screw 51 drives the two clamping plates 52 to move towards the middle part simultaneously, the two clamping plates 52 clamp the stepping motor body, the clamping plates 52, the supporting plate 54 and the shock pad 55 on the shell 1 can be tightly contacted with the stepping motor body 53, the shock pad 55 absorbs vibration generated when the stepping motor body works, mechanical resonance generated when the stepping motor works at a low speed is avoided, and accordingly noise generated by vibration is reduced;

sound absorbing cotton board 6: for the U type, inhale the bottom of cotton board 6 fixed in casing 1, inhale the outside that cotton board 6 is located step motor body 53 inhale the side fixed connection of cotton board 6 and the perforation of U type inhale the side of board 7 inhale the sound, inhale the sound that cotton board 6 can pass out step motor body 53 through perforation and inhale the sound further absorption of noise, avoid the noise to transmit outside.

The sound absorption principle of the perforated sound absorbing plate 7 is as follows: when sound passes through the perforated apertures of the perforated acoustic panel and the fiber gaps of the acoustic cotton in the soapstock by sound waves, the sound waves vibrate drastically due to resonance and rub against the air in the apertures and the fiber pores, resulting in the conversion of part of the sound energy into heat energy for absorption

As a preferable technical scheme of the utility model, the motor further comprises a sound insulation plate 8, the sound insulation plate 8 is cylindrical, the side surface of the sound insulation plate 8 is fixedly connected with the inner side surface of the shell 1, the sound insulation capability of the shell 1 can be further improved through the sound insulation plate 8, and noise transmitted to the outside during the operation of the stepping motor can be further reduced.

As a preferable technical scheme of the utility model, the utility model further comprises a hand wheel 9, wherein the hand wheel 9 is rotatably arranged on the left side surface of the left fixed plate 4, and a shaft in the middle of the right end of the hand wheel 9 passes through a through hole in the left fixed plate 4 and is fixedly connected with the left end of the worm 57, so that people can conveniently rotate the worm 57 through the hand wheel 9, and the stepper motor can be conveniently detached when people overhaul.

As a preferred technical scheme of the utility model, the telescopic rod 10 is further provided with two telescopic rods 10, one ends of the outer sides of the two telescopic rods 10 are fixedly connected with the lower sides of the front side and the rear side in the shell 1 respectively, one ends of the inner sides of the two telescopic rods 10 are fixedly connected with the side surfaces of the lower ends of the two clamping plates 52 respectively, and the clamping plates 52 can be guided through the telescopic rods 10 so that the clamping plates 52 can keep horizontal movement.

As a preferable technical scheme of the utility model, the utility model further comprises a push rod 11, wherein the push rod 11 is fixed in the middle of the right side surface of the cover plate 3, the push rod 11 corresponds to the stepping motor body 53, and the tail part of the stepping motor can be tightly pushed through the push rod 11 to prevent the stepping motor body 53 from displacement during working.

As a preferred embodiment of the present utility model, the present utility model further includes a second shock pad 12, wherein the second shock pad 12 is fixed on the right side surface of the ejector rod 11, and vibration generated by the stepper motor is prevented from being transmitted to the housing 1 through the ejector rod 11 by the second shock pad 12.

As a preferred technical scheme of the utility model, the utility model further comprises ear plates 13, wherein the ear plates 13 are provided with four, and the four ear plates 13 are respectively fixed at the lower sides of the front side and the rear side of the shell 1.

The working principle of the utility model is as follows: the shell 1 is arranged at the using position of the stepping motor through the ear plate 13, when the stepping motor body 53 works to generate vibration, the vibration generated by the stepping motor body 53 can be absorbed by the vibration absorbing pad 53 and the second vibration absorbing pad 12, the vibration is prevented from being transmitted to the shell 1 to generate noise, the noise transmitted to the air when the stepping motor body 53 works can be absorbed by the perforated sound absorbing plate 7 and the sound absorbing cotton plate 6, the noise generated when the stepping motor body 53 works is reduced, meanwhile, the sound insulating plate 8 has good sound insulating effect, the noise can be further blocked, through the vibration absorption, the sound absorption and the sound insulating treatment, the noise generated when the stepping motor body 53 works can be effectively reduced, when the stepping motor body 53 needs to be overhauled, the four bolts 3 can be detached, the cover plate 2 is taken down, the hand wheel 9 is held and rotated, the worm 57 is driven to rotate by the hand wheel 9, the worm 57 is driven to rotate by the worm 56, the bidirectional screw 51 is driven by the worm wheel 51 to rotate, the bidirectional screw 52 is driven by the two clamping plates 52 to move outwards along the direction of the telescopic rod 10, the two clamping plates 52 are simultaneously, and the stepping motor body 53 can be taken out for overhauling.

The components not described in detail herein are prior art.

Although the specific embodiments of the present utility model have been described in detail, the present utility model is not limited to the above embodiments, and various changes and modifications without inventive labor may be made within the scope of the present utility model without departing from the spirit of the present utility model, which is within the scope of the present utility model.

Claims

1. The stepping motor with the noise reduction effect is characterized by comprising a shell (1), a fixed damping mechanism (5) and a sound-absorbing cotton plate (6);

shell (1): the left side surface is fixed with a cover plate (2) through a bolt (3), and the front side surface in the shell (1) is fixed with two fixing plates (4);

fixed damper (5): the novel damping device comprises a bidirectional screw (51), clamping plates (52), a stepping motor body (53), supporting plates (54), damping pads (55), worm wheels (56) and a worm (57), wherein the middle of the front side of the worm wheels (56) is rotationally connected with the left side of the inner front side of a shell (1), the rear end of the bidirectional screw (51) is rotationally connected with the left side of the inner rear side of the shell (1), the front end of the bidirectional screw (51) is fixedly connected with the middle of the rear side of the worm wheels (56), the two ends of the bidirectional screw (51) respectively penetrate through screw holes on the lower sides of the opposite sides of the two clamping plates (52), the clamping plates (52) are L-shaped, the supporting plates (54) are L-shaped, the two ends of the supporting plates (54) are respectively fixedly connected with the left side of the inner bottom of the shell (1) and the lower side of the inner right side of the shell (1), the supporting plates (54) are provided with the stepping motor body (53), the upper surfaces of the supporting plates (54), the opposite sides of the two clamping plates (52) and the right side of the inner side of the shell (1) are fixedly connected with the worm pads (55), and the two ends of the two damping pads (55) are in contact with the two sides of the corresponding damping plates (57) respectively, and are in a rotary mode, and the two ends of the two sides of the damping pads (55 are in contact with the corresponding sides of the corresponding side of the worm (57 respectively;

sound-absorbing cotton board (6): the sound-absorbing cotton plate (6) is fixed at the bottom in the shell (1) and is positioned at the outer side of the stepping motor body (53), and the inner side surface of the sound-absorbing cotton plate (6) is fixedly connected with the side surface of the U-shaped perforated sound-absorbing plate (7).

2. A stepping motor having a noise reduction effect according to claim 1, wherein: the novel sound insulation device is characterized by further comprising a sound insulation plate (8), wherein the sound insulation plate (8) is cylindrical, and the side surface of the sound insulation plate (8) is fixedly connected with the inner side surface of the shell (1).

3. A stepping motor having a noise reduction effect according to claim 1, wherein: the novel rotary type worm gear further comprises a hand wheel (9), the hand wheel (9) is rotatably arranged on the left side face of the left fixing plate (4), and a shaft in the middle of the right end of the hand wheel (9) penetrates through a through hole in the left fixing plate (4) and is fixedly connected with the left end of the worm (57).

4. A stepping motor having a noise reduction effect according to claim 1, wherein: the telescopic device is characterized by further comprising two telescopic rods (10), wherein one ends of the outer sides of the two telescopic rods (10) are fixedly connected with the lower sides of the front side and the rear side in the shell (1) respectively, and one ends of the inner sides of the two telescopic rods (10) are fixedly connected with the side faces of the lower ends of the two clamping plates (52) respectively.

5. A stepping motor having a noise reduction effect according to claim 1, wherein: the motor cover is characterized by further comprising an ejector rod (11), wherein the ejector rod (11) is fixed in the middle of the right side face of the cover plate (2), and the ejector rod (11) corresponds to the stepping motor body (53).

6. A stepping motor having a noise reduction effect according to claim 5, wherein: the novel shock absorber further comprises a second shock pad (12), and the second shock pad (12) is fixed on the right side face of the ejector rod (11).

7. A stepping motor having a noise reduction effect according to claim 1, wherein: the novel portable electric power meter further comprises ear plates (13), wherein the four ear plates (13) are arranged, and the four ear plates (13) are respectively fixed on the lower sides of the front side and the rear side of the shell (1).