CN212486406U

CN212486406U - Novel intelligent asynchronous motor starting protection device

Info

Publication number: CN212486406U
Application number: CN202020571029.6U
Authority: CN
Inventors: 王军波
Original assignee: Henan Dechang Electric Technology Co ltd
Current assignee: Henan Dechang Electric Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2021-02-05
Anticipated expiration: 2030-04-16

Abstract

The utility model discloses a novel intelligent asynchronous motor starts protection device belongs to asynchronous machine protection technical field, and it includes first casing, the right flank of first casing is provided with the second casing, the lower surface of second casing and first shells inner wall all is provided with the fixture block, two the opposite face joint of fixture block has same asynchronous machine body, asynchronous machine body's output joint is in the draw-in groove, the right-hand member at the connecting axle is seted up to the draw-in groove. This novel intelligent asynchronous motor starts protection device, through mutually supporting between response device, induction apparatus, second casing, connecting axle and the draw-in groove for when the staff can be convenient the rotational speed to the asynchronous machine body detects, can protect the asynchronous machine body, thereby the effectual asynchronous machine body that has reduced because of colliding with or the dust gets into or the rotational speed is too fast causes the asynchronous machine body possibility of damage to appear.

Description

Novel intelligent asynchronous motor starting protection device

Technical Field

The utility model belongs to the technical field of asynchronous machine protection device, specifically be a novel intelligent asynchronous motor starts protection device.

Background

At present, asynchronous motor on the market is mostly only provided with overspeed protection device, and its principle is just to connect a protection alarm device in the epaxial of motor and detect, and asynchronous motor itself leads to the inside condition that damages to appear because of reasons such as intaking, deposition easily, and current asynchronous motor all protects through the shell of protection, not only is difficult to reach the purpose of portable dismouting, and when the motor was in protective housing operation, the condition that collides with appears with protective housing's inner wall easily.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the above-mentioned defect of prior art, the utility model provides a novel intelligent asynchronous motor starts protection device has solved current asynchronous machine and has all only protected through the shell of protection, not only is difficult to reach the purpose of portable dismouting, and the motor when the operation in protective housing, the condition of colliding with appears with protective housing's inner wall easily, and after fixing the protection to the motor, is difficult for detecting the problem of protection to the asynchronous machine rotational speed.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a novel intelligent starting protection device for an asynchronous motor comprises a first shell, wherein a second shell is arranged on the right side face of the first shell, fixture blocks are arranged on the lower surfaces of the inner walls of the second shell and the first shell, the same asynchronous motor body is clamped on the opposite faces of the two fixture blocks, the output end of the asynchronous motor body is clamped in a clamping groove, the clamping groove is formed in the right end of a connecting shaft, reaction equipment is arranged on the outer surface of the connecting shaft, induction equipment and the reaction equipment are arranged on the same straight line, the right end of the connecting shaft is fixedly connected with the right end of an output shaft through a bearing, the bearing is clamped on the left side face of the inner wall of the first shell, the upper surfaces of the first shell and the second shell are fixedly connected with the lower surfaces of a first clamping plate and a second clamping plate respectively, the second clamping plate is clamped in the first clamping plate, a fastening device is arranged on the upper surface of the first clamping plate, and the bottom end of the fastening device is clamped in the second clamping plate through the first clamping plate.

As a further aspect of the present invention: the front and the back of the inner walls of the first shell and the second shell are provided with heat dissipation holes, filter screens are arranged in the heat dissipation holes, exhaust holes are formed in the surfaces, far away from the first shell and the second shell, of the first shell and the second shell, and filter plates are arranged in the exhaust holes.

As a further aspect of the present invention: the front and the back of first casing and second casing all are provided with resilient means, are located the top two the equal fixedly connected with guard plate in resilient means's top, two the opposite face overlap joint of guard plate, two the opposite face looks adaptation of guard plate, induction system's output is connected with the input electricity of asynchronous machine body through the wire.

As a further aspect of the present invention: the quantity of louvre is eight, the quantity in exhaust hole is three, the surface of connecting axle is provided with exhaust fan leaf, the lower surface of first casing and second casing all is provided with the base.

As a further aspect of the present invention: the fastening device comprises a nut, the lower surface of the nut is fixedly connected with the upper surface of the first clamping plate, a fastening screw is connected with the inner thread of the nut, and the bottom end of the fastening screw is clamped in the second clamping plate through the first clamping plate.

As a further aspect of the present invention: the elastic device comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a spring, the top end of the spring is fixedly connected with the lower surface of the protection plate, and the lower surface of the bottom plate is fixedly connected with the upper surface of the first shell.

(III) advantageous effects

Compared with the prior art, the beneficial effects of the utility model reside in that:

1. this novel intelligent asynchronous motor starts protection device, through response device, induction system, first casing, the second casing, mutually support between connecting axle and the draw-in groove, when the staff need examine asynchronous machine body's rotational speed, only need start asynchronous machine body, asynchronous machine body will drive the connecting axle and rotate this moment, make the response device on connecting axle surface rotate fast, at response device pivoted in-process, induction system will respond to the rotatory time of response device a week and thereby judge asynchronous machine body's rotational speed, when the rotational speed is too fast, induction system will report to the police to asynchronous machine body through the wire, thereby close asynchronous machine body, when making the staff can be convenient carry out the measuring to asynchronous machine body's rotational speed, can protect asynchronous machine body, the effectual asynchronous machine body that has reduced is because of colliding with or the dust gets into or the rotational speed is too fast thereby cause asynchronous machine originally because of colliding with The possibility of damage to the body.

2. This novel intelligent asynchronous motor starts protection device, through setting up spring, guard plate and bottom plate, when this protection device's front and back received the striking, the guard plate will extrude the spring for the spring contracts rapidly, resets under the effect of spring force afterwards, thereby reduces external striking to this protection device's impact force, makes the asynchronous machine body be difficult for appearing the condition of dislocation damage because of the impact force.

3. This novel intelligent asynchronous motor starts protection device through setting up the fixture block for the asynchronous machine body is difficult for appearing the condition of dislocation because of the vibrations of self when the asynchronous machine body starts when starting, makes the asynchronous machine body difficult the condition of colliding with appear with the inner wall of first casing and second casing.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 is an enlarged schematic structural view at a position a of the present invention;

in the figure: the induction type fan blade protection device comprises a first shell 1, an induction device 2, a second shell 3, a clamping block 4, an asynchronous motor body 5, a clamping groove 6, a connecting shaft 7, a reaction device 8, a bearing 9, an output shaft 10, a fan blade 11, a first clamping plate 12, a second clamping plate 13, a fastening device 14, a fastening screw 141, a nut 142, a heat dissipation hole 15, an exhaust hole 16, an elastic device 17, a bottom plate 171, a spring 172 and a protection plate 18.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

As shown in fig. 1-3, the utility model provides a technical solution: a novel intelligent starting protection device for an asynchronous motor comprises a first shell 1, a second shell 3 is arranged on the right side face of the first shell 1, fixture blocks 4 are arranged on the lower surfaces of the inner walls of the second shell 3 and the first shell 1, the same asynchronous motor body 5 is clamped on the opposite faces of the two fixture blocks 4, the output end of the asynchronous motor body 5 is clamped in a clamping groove 6, the clamping groove 6 is arranged at the right end of a connecting shaft 7, a reaction device 8 is arranged on the outer surface of the connecting shaft 7, an induction device 2 is arranged on the upper surface of the inner wall of the first shell 1, the induction device 2 and the reaction device 8 are positioned on the same straight line, the right end of the connecting shaft 7 is fixedly connected with the right end of an output shaft 10 through a bearing 9, the bearing 9 is clamped on the left side face of the inner wall of the first shell 1, the upper surfaces of the first shell 1 and the second shell 3 are fixedly connected with the lower, second cardboard 13 joint is in first cardboard 12, first cardboard 12 upper surface is provided with fastener 14, fastener 14's bottom is in second cardboard 13 through first cardboard 12 joint, through response device 8, induction equipment 2, mutually support between connecting axle 7 and the draw-in groove 6, when the rotational speed is too fast, induction equipment 2 will report to the police to asynchronous machine body 5 through the wire, thereby close asynchronous machine body 5, when making the staff can be convenient detect asynchronous machine body 5's rotational speed, can protect asynchronous machine body 5, thereby the effectual asynchronous machine body 5 that has reduced is because of colliding with or the dust gets into or the rotational speed is too fast causes asynchronous machine body 5 to appear the possibility of damaging.

Specifically, as shown in fig. 1, heat dissipation holes 15 are formed in the front and back surfaces of the inner walls of the first casing 1 and the second casing 3, filter screens are disposed in the heat dissipation holes 15, exhaust holes 16 are formed in the surfaces of the first casing 1 and the second casing 3 away from each other, filter plates are disposed in the exhaust holes 16, due to the heat dissipation holes 15 and the exhaust holes 16, when the motor is started, heat in the first casing 1 and the second casing 3 can be discharged out of the first casing 1 and the second casing 3 under the driving of exhaust fan blades, so that the asynchronous motor body 5 is not easily damaged due to internal overheating, due to the filter plates and filter screens, when external air enters the first casing 1 and the second casing 3, dust is not easily brought into the asynchronous motor body 5, so that the asynchronous motor body 5 is not easily damaged due to excessive dust entering, and the number of the heat dissipation holes 15 is eight, the quantity of exhaust hole 16 is three, the surface of connecting axle 7 is provided with exhaust fan leaf 11, the lower surface of first casing 1 and second casing 3 all is provided with the base, fastener 14 includes nut 142, because of being provided with fastening screw 141 and nut 142, make that the staff can be convenient assemble and dismantle first casing 1 and second casing 3, and the condition that drops is difficult for appearing, the lower surface of nut 142 is connected with the last fixed surface of first cardboard 12, nut 142 female connection has fastening screw 141, fastening screw 141's bottom is in second cardboard 13 through first cardboard 12 joint.

Specifically, as shown in fig. 1 and 2, the front and back of the first housing 1 and the second housing 3 are provided with the elastic devices 17, the top ends of the two elastic devices 17 above are fixedly connected with the protection plates 18, the opposite surfaces of the two protection plates 18 are overlapped, by providing the springs 172, the protection plates 18 and the bottom plate 171, when an object outside impacts the protection plates 18, the protection plates 18 will extrude the springs 172, so that the springs 172 contract rapidly, and then reset under the elastic force of the springs 172, thereby reducing the impact force of the external impact on the protection devices, so that the asynchronous motor body 5 is not prone to be misplaced and damaged due to the impact force, the opposite surfaces of the two protection plates 18 are adapted, the output end of the induction device 2 is electrically connected with the input end of the asynchronous motor body 5 through a wire, the elastic devices 17 include the bottom plate 171, by providing the fixture block 4, the asynchronous motor body 5 is not prone to be misplaced due, the asynchronous motor body 5 is not prone to colliding with the inner walls of the first shell 1 and the second shell 3, the upper surface of the base plate 171 is fixedly connected with the spring 172, the top end of the spring 172 is fixedly connected with the lower surface of the protection plate 18, and the lower surface of the base plate 171 is fixedly connected with the upper surface of the first shell 1.

The utility model discloses a theory of operation does:

s1, when the asynchronous motor is used, a worker only needs to rotate the fastening screw 141 reversely, so that the fastening screw 141 is separated from the second clamping plate 13, the first clamping plate 12 and the nut 142 slowly, the worker can pull the first shell 1 and the second shell 3 to separate the first shell 1 from the second shell 3, and then the asynchronous motor body 5 can be installed in the first shell 1 and the second shell 3;

s2, when the worker needs to install the motor in the first shell 1 and the second shell 3, the worker only needs to clamp the asynchronous motor body 5 in the clamping block 4 in the first shell 1, so that the output end of the asynchronous motor body 5 is clamped in the clamping groove 6, then the first shell 1 and the second shell 3 are attached to each other, so that the second clamping plate 13 is clamped in the first clamping plate 12, and then the worker can fix the first clamping plate 12 and the second clamping plate 13 through the fastening screws 141;

s3, when the staff needs to detect the rotating speed of the asynchronous motor body 5, only the asynchronous motor body 5 needs to be started, at the moment, the asynchronous motor body 5 drives the connecting shaft 7 to rotate, so that the reaction equipment 8 on the surface of the connecting shaft 7 rotates quickly, in the rotating process of the reaction equipment 8, the induction equipment 2 induces the reaction equipment 8 to rotate for a circle, thereby judging the rotating speed of the asynchronous motor body 5, when the rotating speed is too fast, the induction equipment 2 alarms the asynchronous motor body 5 through a wire, and thereby the asynchronous motor body 5 is closed.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A novel intelligent asynchronous motor starting protection device comprises a first shell (1), and is characterized in that: the right side face of the first shell (1) is provided with a second shell (3), the lower surfaces of the inner walls of the second shell (3) and the first shell (1) are respectively provided with a clamping block (4), the opposite faces of the two clamping blocks (4) are connected with the same asynchronous motor body (5), the output end of the asynchronous motor body (5) is connected in a clamping groove (6), the clamping groove (6) is arranged at the right end of a connecting shaft (7), the outer surface of the connecting shaft (7) is provided with a reaction device (8), the upper surface of the inner wall of the first shell (1) is provided with an induction device (2), the induction device (2) and the reaction device (8) are positioned on the same straight line, the right end of the connecting shaft (7) is fixedly connected with the right end of an output shaft (10) through a bearing (9), and the bearing (9) is connected with the left side face of the inner wall of the first shell (1, the upper surfaces of the first casing (1) and the second casing (3) are fixedly connected with the lower surfaces of the first clamping plate (12) and the second clamping plate (13) respectively, the second clamping plate (13) is clamped in the first clamping plate (12), a fastening device (14) is arranged on the upper surface of the first clamping plate (12), and the bottom end of the fastening device (14) is clamped in the second clamping plate (13) through the first clamping plate (12).

2. The new intelligent start protector for asynchronous motor according to claim 1, characterized by that: the front and the back of first casing (1) and second casing (3) inner wall all are provided with louvre (15), be provided with the filter screen in louvre (15), exhaust hole (16) have all been seted up to the one side that first casing (1) and second casing (3) kept away from mutually, be provided with the filter plate in exhaust hole (16).

3. The new intelligent start protector for asynchronous motor according to claim 1, characterized by that: the front and the back of first casing (1) and second casing (3) all are provided with resilient means (17), are located the top two the equal fixedly connected with guard plate (18) in top of resilient means (17), two the opposite face overlap joint of guard plate (18), two the opposite face looks adaptation of guard plate (18), the output of response device (2) is passed through the wire and is connected with the input electricity of asynchronous machine body (5).

4. The new intelligent start protector for asynchronous motor according to claim 2, characterized by that: the quantity of louvre (15) is eight, the quantity of exhaust hole (16) is three, the surface of connecting axle (7) is provided with exhaust fan leaf (11), the lower surface of first casing (1) and second casing (3) all is provided with the base.

5. The new intelligent start protector for asynchronous motor according to claim 1, characterized by that: the fastening device (14) comprises a nut (142), the lower surface of the nut (142) is fixedly connected with the upper surface of the first clamping plate (12), a fastening screw (141) is connected with the inner thread of the nut (142), and the bottom end of the fastening screw (141) is clamped in the second clamping plate (13) through the first clamping plate (12).

6. A new intelligent start protector for asynchronous motor according to claim 3, characterized by that: elastic device (17) includes bottom plate (171), the last fixed surface of bottom plate (171) is connected with spring (172), the top of spring (172) and the lower fixed surface of guard plate (18) are connected, the lower surface of bottom plate (171) and the last fixed surface of first casing (1) are connected.