CN215031082U

CN215031082U - Monitoring device for abnormal vibration of screen body of screening machine

Info

Publication number: CN215031082U
Application number: CN202121186314.7U
Authority: CN
Inventors: 李长江; 樊远斌; 兰少勇; 吕晓敏
Original assignee: Chengdu Reyson Machinery Equipment Co ltd
Current assignee: Chengdu Reyson Machinery Equipment Co ltd
Priority date: 2021-05-29
Filing date: 2021-05-29
Publication date: 2021-12-07
Anticipated expiration: 2031-05-29

Abstract

The utility model relates to a technical field of screening machine particularly, relates to an unusual monitoring devices of screening machine screen frame vibration, cooperates and uses in the screening machine. The screening machine includes fixed part and vibration portion. The monitoring device for abnormal vibration of the screen body of the screening machine comprises a vibrating piece, a position sensor and a control unit. The vibrating member is connected to the vibrating portion. The position sensor is matched with the vibrating piece and arranged on the fixing part. The position sensor is used for detecting the position of the vibrating piece. The control unit calculates a vibration parameter of the vibrating portion based on the position of the vibrating member. When the vibration part is used, the vibration part vibrates relative to the fixed part. The position sensor detects the position of the vibrating piece and transmits the monitored data to the control unit. The control unit calculates parameters such as vibration amplitude, vibration direction and vibration frequency of the vibration piece according to a calculation formula prestored in the control unit.

Description

Monitoring device for abnormal vibration of screen body of screening machine

Technical Field

The utility model relates to a technical field of screening machine particularly, relates to a monitoring devices that screening machine screen frame vibration is unusual.

Background

Screening machines are common mining equipment used to grade particulate materials. In order to ensure that the materials inside the screening machine can continuously move along the screen inside the screening machine, the screening machine needs to be provided with vibrating equipment. That is to say, the screening machine is in the state of vibration in the course of working, and then makes the material constantly move along the screen cloth.

The screening machine of the prior art cannot detect the vibration state of the screening machine, so that the screening machine cannot be found when the screening machine vibrates abnormally. Abnormal vibration of the screening machine for a long time may cause damage to the equipment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a monitoring devices that screening machine screen frame vibration is unusual, the vibration condition of monitoring shale shaker that it can be fine.

The embodiment of the utility model discloses a realize through following technical scheme:

a monitoring device for abnormal vibration of a screen body of a screening machine is matched with the screening machine for use; the screening machine comprises a fixed part and a vibrating part; the monitoring device for abnormal vibration of the screen body of the screening machine comprises a vibrating piece, a position sensor and a control unit; the vibrating piece is connected to the vibrating part; the position sensor is matched with the vibrating piece and arranged on the fixing part; the position sensor is used for detecting the position of the vibrating piece; the control unit calculates a vibration parameter of the vibrating portion according to a position of the vibrating member.

Further, the position sensor comprises a transmitting plate and a receiving plate; the transmitting plate is provided with a plurality of light source transmitting ends distributed in a square matrix; the receiving plate is provided with a plurality of light source receiving ends distributed in a square matrix; the light source transmitting end and the light source receiving end are oppositely arranged and correspond to each other one by one; and the light source receiving ends are connected to the control unit.

Furthermore, a luminous body is arranged inside the transmitting plate; the transmitting plate is internally provided with optical fibers matched with each light source transmitting end; one end of the optical fibers, which is far away from the light source transmitting end, is connected to the luminous body.

Further, the light source emission end is also provided with a parallel light lens.

Further, the transmitting plate and the receiving plate are oppositely arranged and fixedly connected together.

Further, one end of the vibrating piece, which is far away from the vibrating part, is provided with a vibrating block; the vibrating block extends between the transmitting plate and the receiving plate.

Further, the position sensors are provided in two; the two position sensors are perpendicular to each other; the vibrating piece is provided with two vibrating blocks; two of the vibrating masses are each arranged in cooperation with one of the position sensors.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

the utility model discloses an unusual monitoring devices of screening machine screen frame vibration during the use, the vibrating portion vibrates relatively to the fixed part. The vibrating member connected to the vibrating portion vibrates following the vibrating portion. The vibration of the vibrating member causes it to rock relative to the position sensor. The position sensor detects the position of the vibrating piece and transmits the monitored data to the control unit. The control unit calculates parameters such as vibration amplitude, vibration direction and vibration frequency of the vibration piece according to a calculation formula prestored in the control unit. Meanwhile, the control unit compares the calculated vibration parameters with prestored standard vibration parameters, and then monitors whether the vibration of the screening machine is abnormal.

The monitoring device for abnormal vibration of the screen body of the screening machine can monitor the vibration parameters of the screening machine and detect whether the vibration of the screening machine is abnormal or not. The operator can conveniently know the equipment condition in time, the equipment is prevented from running under the abnormal condition, and the service life of the equipment is ensured.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a device for monitoring abnormal vibration of a screen body of a screening machine provided by the present invention;

FIG. 2 is a schematic diagram of a position sensor;

fig. 3 is a schematic view of the structure inside the emitting plate.

Icon: 1-fixed part, 2-vibrating part, 3-vibrating part, 4-position sensor, 41-emitting plate, 411-light source emitting end, 412-luminous body, 413-optical fiber, 42-receiving plate, 5-vibrating motor, 6-spring and 7-screen.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship which is usually placed when the product of this application is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific orientation, be constructed in a specific orientation and be operated is not to be construed as limiting the present invention.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted 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 in specific cases to those skilled in the art.

Example (b):

as shown in fig. 1-3, the utility model provides a monitoring device for abnormal vibration of a screen body of a screening machine, which is matched with the screening machine for use. The sieving machine comprises a fixed part 1 and a vibrating part 2. The vibrating portion 2 is supported on the fixing portion 1 through a plurality of springs 6, so that the vibrating portion 2 can rock relative to the fixing portion 1, and vibration of the vibrating portion 2 is facilitated. The vibrating part 2 is internally provided with a plurality of layers of screens 7 for screening materials. The vibrating portion 2 is also mounted with a vibration motor 5. Vibrating motor 5 vibrates and can drive vibration portion 2 vibrations, and then makes things convenient for the inside material vibration of vibration portion 2 and is sieved.

The monitoring device for abnormal vibration of the screen body of the screening machine comprises a vibrating piece 3, a position sensor 4 and a control unit. The vibrating member 3 is connected to the vibrating portion 2. When the vibrating portion 2 vibrates, the vibrating member 3 vibrates following the vibrating portion 2. And the vibration parameters of the vibrating member 3 and the vibration parameters of the vibrating portion 2 are identical. The position sensor 4 is provided in the fixing portion 1 in cooperation with the vibrator 3. The position sensor 4 is used to detect the position of the vibrating piece 3. The position sensor 4 may take many forms. In the present embodiment, the position sensor 4 includes a transmitting plate 41 and a receiving plate 42. The emitting plate 41 is provided with a plurality of light source emitting ends 411 distributed in a square matrix. The receiving plate 42 is provided with a plurality of light source receiving ends distributed in a square matrix. The light source emitting end 411 and the light source receiving end are oppositely arranged and correspond to each other one by one. The light source receiving ends are connected with the control unit. The light source receiving end may be a common photosensor. The light source emitted from the light source emitting terminal 411 reaches and is received by the light source receiving terminal. When there is an object between the light source receiving end and the light source emitting end 411, the light source receiving end cannot receive light, and the light source receiving end sends a signal at this time. The light source receiving end sends the signal to the control unit. The position of the vibrating member 3 is different from that of the light source receiving end which sends the signal. The control unit can judge the position of the vibrating piece 3 according to the position of the light source receiving end which sends the signal. The control unit calculates the vibration parameters of the vibrating portion 2 based on the position of the vibrating member 3.

In the two-dimensional coordinate system, each light source receiving end corresponds to one coordinate. The control unit records the coordinates of the light source receiving ends sending signals, and calculates the distance between the two light source receiving ends according to the coordinates of the two farthest light source receiving ends. This distance is twice the amplitude. This also calculates the amplitude of the vibrating portion 2. Meanwhile, the control unit records the frequency of the signal sent by the light source receiving end at the farthest end, and the frequency is the vibration frequency of the vibration part 2. In addition, the vibrating direction of the vibrating member 3 with respect to the receiving plate 42, that is, the vibrating direction of the vibrating portion 2.

The utility model discloses a monitoring devices that screening machine screen frame vibration is unusual uses, and vibration portion 2 vibrates for fixed part 1. The vibrating member 3 connected to the vibrating portion 2 vibrates following the vibrating portion 2. The vibration of the vibrating member 3 causes it to shake with respect to the position sensor 4. The position sensor 4 detects the position of the vibrating piece 3 and transmits the data obtained by the monitoring to the control unit. The control unit calculates parameters such as vibration amplitude, vibration direction and vibration frequency of the vibrating piece 3 according to a calculation formula prestored in the control unit. Meanwhile, the control unit compares the calculated vibration parameters with prestored standard vibration parameters, and then monitors whether the vibration of the screening machine is abnormal.

In order to more accurately obtain the vibration parameters of the vibrating portion 2, the density of the light source receiving end may be set to be large. Meanwhile, a grating sensor may also be employed. The distance between two adjacent light source receiving ends of the grating sensor can be accurate to 0.01 mm. In this embodiment, the distance between two adjacent light source receiving ends is 1 mm.

In this embodiment, the light emitter 412 is disposed inside the emission plate 41. The transmitting plate 41 is internally provided with an optical fiber 413 in cooperation with each light source transmitting end 411. The ends of the optical fibers 413 remote from the light source emitting end 411 are connected to the light emitter 412. The optical fiber 413 guides the line emitted from the light emitter 412 to each light source emitting end 411. This enables the number of light sources at the light source emitting end 411 to be greatly reduced, the integration level to be lower, and the manufacturing cost to be lower.

In this embodiment, the light source emitting end 411 is further provided with a parallel light lens. The parallel light lens can correct the light guided out by the optical fiber 413 into parallel light, so as to prevent the light source receiving end from receiving the light emitted by the light source emitting end 411 which is not matched with the light source receiving end.

In this embodiment, the transmitting plate 41 and the receiving plate 42 are disposed opposite to each other and fixedly connected together. This makes the relative positions of the transmitting plate 41 and the receiving plate 42 fixed, thereby better ensuring the alignment effect of the light source receiving end and the light source transmitting end 411.

In this embodiment, a vibrating mass is disposed at one end of the vibrating member 3 away from the vibrating portion 2. The vibrating mass extends between the transmitting plate 41 and the receiving plate 42. This enables the vibration of the vibrating member 3 to be detected well by the position sensor 4, thereby detecting the vibration parameters of the vibrating portion 2 well.

In the present embodiment, two position sensors 4 are provided. The two position sensors 4 are perpendicular to each other. The vibrating member 3 is provided with two vibrating masses. Two seismic masses are each arranged in conjunction with a position sensor 4. When calculating the vibration parameters of the vibrating unit 2, the vibration parameters of the vibrating element 3 detected by the two position sensors 4 are combined to calculate the vibration parameters. This upgrades the detected vibration direction of the vibrating portion 2 from the two-dimensional direction to the three-dimensional direction.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A monitoring device for abnormal vibration of a screen body of a screening machine is matched with the screening machine for use; the screening machine comprises a fixed part (1) and a vibrating part (2); the method is characterized in that: the monitoring device for abnormal vibration of the screen body of the screening machine comprises a vibrating piece (3), a position sensor (4) and a control unit; the vibrating piece (3) is connected to the vibrating part (2); the position sensor (4) is matched with the vibrating piece (3) and arranged on the fixing part (1); the position sensor (4) is used for detecting the position of the vibrating piece (3); the control unit calculates the vibration parameters of the vibrating part (2) according to the position of the vibrating piece (3).

2. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 1, characterized in that: the position sensor (4) comprises a transmitting plate (41) and a receiving plate (42); the transmitting plate (41) is provided with a plurality of light source transmitting ends (411) which are distributed in a square matrix; the receiving plate (42) is provided with a plurality of light source receiving ends distributed in a square matrix; the light source emitting end (411) and the light source receiving end are oppositely arranged and are in one-to-one correspondence; and the light source receiving ends are connected to the control unit.

3. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 2, characterized in that: a luminous body (412) is arranged inside the emitting plate (41); an optical fiber (413) is arranged in the transmitting plate (41) and matched with each light source transmitting end (411); one end of a plurality of optical fibers (413) far away from the light source emission end (411) is connected to the luminous body (412).

4. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 3, characterized in that: the light source emitting end (411) is also provided with a parallel light lens.

5. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 2, characterized in that: the transmitting plate (41) and the receiving plate (42) are oppositely arranged and fixedly connected together.

6. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 5, characterized in that: one end of the vibrating piece (3) far away from the vibrating part (2) is provided with a vibrating block; the vibrating mass extends between the transmitting plate (41) and the receiving plate (42).

7. The apparatus for monitoring screen body vibration abnormality of a screening machine according to claim 6, characterized in that: two position sensors (4) are arranged; the two position sensors (4) are perpendicular to each other; the vibrating piece (3) is provided with two vibrating blocks; the two vibrating masses are each arranged in a manner matched to one of the position sensors (4).