Protective device for preventing belt from being abraded

Abstract

The utility model discloses a protection device for preventing a belt from being abraded, which relates to the technical field of material conveying belt equipment with fixed speed and comprises a driving wheel, a driven wheel, the belt, a first speed detection device, a second speed detection device and a DCS (distributed control system), and the driving wheel is used for being connected with an output shaft of a driving motor; the belt is used for being arranged on the outer sides of the driving wheel and the driven wheel in a sleeving mode and can drive the driven wheel and the driving wheel to rotate synchronously under driving of the driving wheel. The first speed detection device is used for measuring the rotating speed of the driving wheel; the second speed detection device is used for measuring the rotating speed of the driven wheel; the DCS control system is in signal connection with the first speed detection device, the second speed detection device and the driving motor, the structure is simple, and belt abrasion is effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the fixed speed's material conveying belt equipment technical field, especially a kind of protection device for preventing belt abrasion. BACKGROUND

[0002] Currently, if heavy load, jam and other situations occur in the constant speed normal operation of material conveying belt, it will lead to the situation that the belt speed is reduced or even stopped, and at this time, the belt drive motor overload trip value is not reached, i.e. the motor is always running. This will directly lead to friction between the belt and the driving wheel and the driven wheel, which will cause serious abrasion on the surface of the belt, and in severe cases, it will directly lead to belt rupture, greatly shorten the service life of the belt, and it is difficult to repair and the maintenance cost is high. In order to solve such problems, we design this patent. UTILITY MODEL CONTENT

[0003] The utility model aims to provide a kind of protection device for preventing belt abrasion, to solve the problems existing in the prior art, simple structure, effectively avoid belt abrasion.

[0004] To achieve the above object, the utility model provides the following scheme:

[0005] The utility model provides a kind of protection device for preventing belt abrasion, including: driving wheel, driven wheel, belt, first speed detection device, second speed detection device and DCS control system, the driving wheel is used to be connected with the output shaft of driving motor;The belt is used to be set on the outside of the driving wheel and the driven wheel, and the belt can drive the driven wheel and the driving wheel synchronous rotation under the driving of the driving wheel;The first speed detection device is used to determine the rotation speed of driving driving wheel;The second speed detection device is used to measure the rotation speed of the driven wheel;The DCS control system is signal connected with the first speed detection device, the second speed detection device and driving motor.

[0006] Preferably, the driving wheel and the driven wheel are the same structure.

[0007] Preferably, the central shaft of the driving wheel is used to be fixedly connected with the output shaft of the driving motor.

[0008] Preferably, the first speed detection device is a first electromagnetic proximity switch, the driving wheel is provided with a first hollow through hole, and the first electromagnetic proximity switch is arranged corresponding to the center of the first hollow through hole.

[0009] Preferably, the number of the first hollow through hole is four, and the four first hollow through holes are evenly arranged along the circumference of the driving wheel.

[0010] Preferably, each of the first hollow through holes is a circular through hole, and the side surface between each of the first hollow through holes is a first cast iron surface.

[0011] Preferably, the second speed detection device is a second electromagnetic proximity switch, and a second hollow through hole is arranged on the driven wheel, and the second electromagnetic proximity switch is arranged in correspondence with the center of the second hollow through hole.

[0012] Preferably, the number of the second hollow through holes is four, and the four second hollow through holes are uniformly arranged along the circumference of the driven wheel.

[0013] Preferably, each of the first hollow through holes is a circular through hole, and the side surface between each of the second hollow through holes is a second cast iron surface.

[0014] The utility model discloses relative to prior art has obtained following technical effect:

[0015] The utility model provides a protection device that prevents belt abrasion, after driving motor starts, the belt starts operation, and first speed detection device detects that the driving wheel enters normal uniform velocity running state and will driving wheel's rotation speed signal transmission to DCS control system, and second speed detection device carries out speed detection to driven wheel and will driven wheel's rotation speed signal transmission to DCS control system, and DCS control system judges driving wheel's rotation speed signal and driven wheel's rotation speed signal, and when both are same, judges that the belt is normal operation at this time, and when both are not same, judges that the belt and driven wheel are out of synchronization at this time, and the belt has abrasion phenomenon, and DCS control system interlock output parking instruction, and stop driving motor operation, and guarantee equipment is not damaged. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will briefly introduce the drawing needed to be used in the embodiment, and obviously, the drawing in the following description is only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without paying creative labor.

[0017] Fig. 1 It is the structure schematic diagram of the protection device that prevents belt abrasion provided by the utility model;

[0018] Fig. 2 It is the side view of the driving wheel in the protection device that prevents belt abrasion provided by the utility model;

[0019] Fig. 3 It is the top view of the driving wheel in the protection device that prevents belt abrasion provided by the utility model;

[0020] Fig. 4The process flow diagram of the protection device for preventing belt abrasion in use is provided.

[0021] In the figure: 1, driving wheel; 2, electromagnetic proximity switch; 3, first hollow through hole; 4, first cast iron surface; 5, central shaft; 7, driven wheel; 8, belt. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] The utility model discloses a kind of protection devices for preventing belt abrasion, to solve the problems existing in the prior art, simple structure, effectively avoid belt abrasion.

[0024] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail below with reference to the drawings and specific embodiments.

[0025] The utility model provides a kind of protection device for preventing belt abrasion, as shown in Figs. 1-3 It includes: driving wheel 1, driven wheel 7, belt 8, first speed detection device, second speed detection device and DCS control system, driving wheel 1 is used to be connected with the output shaft of driving motor;Belt 8 is used to be set on the outside of driving wheel 1 and driven wheel 7, and belt 8 can drive driven wheel 7 to rotate synchronously with driving wheel 1 under the driving of driving wheel 1;First speed detection device is used to determine the rotating speed of driving driving wheel 1;Second speed detection device is used to measure the rotating speed of driven wheel 7;DCS control system is signal connected with first speed detection device, second speed detection device and driving motor, after driving motor starts, belt 8 starts to run, after first speed detection device detects that driving wheel 1 enters normal uniform speed running state and transmits the rotating speed signal of driving wheel 1 to DCS control system, second speed detection device detects the speed of driven wheel 7 and transmits the rotating speed signal of driven wheel 7 to DCS control system, DCS control system determines the rotating speed signal of driving wheel 1 and the rotating speed signal of driven wheel 7, and when the two are the same, it is determined that belt 8 is normal at this time;When the two are different, it is determined that belt 8 and driven wheel 7 run out of synchronization at this time, belt 8 has abrasion phenomenon, DCS control system interlock output parking instruction, stop driving motor running, ensure that equipment is not damaged.

[0026] In a preferred embodiment, the driving wheel 1 and the driven wheel 7 are structurally identical, simple in structure and convenient to use.

[0027] In a preferred embodiment, the central shaft 5 of the driving wheel 1 is used for fixed connection with the output shaft of the driving motor, which is simple in structure and effectively ensures the stability of the device.

[0028] In a preferred embodiment, the first speed detection device is a first electromagnetic proximity switch 2, the driving wheel is provided with a first hollow through hole 3, the first electromagnetic proximity switch 2 is arranged corresponding to the center of the first hollow through hole 3, the number of the first hollow through hole 3 is four, the four first hollow through holes 3 are uniformly arranged along the circumference of the driving wheel 1, each first hollow through hole 3 is a circular through hole, the side surface between each first hollow through hole 3 is a first cast iron surface 4, the first electromagnetic proximity switch 2 is used for detecting the rotating speed of the driving wheel 1, since there are four first hollow through holes 3 on the driving wheel 1, there is no medium at this position, and the remaining part is the first cast iron surface 4, the installation position of the first electromagnetic proximity switch 2 is the upper part of the side surface of the driving wheel 1, the midpoint position of one of the first hollow through holes 3, parallel to the installation of the driving wheel 1. When the roller starts to rotate to the position of the four first hollow through holes 3, the first electromagnetic proximity switch 2 is opened. The first electromagnetic proximity switch 2 is closed at the remaining position. The driving wheel 1 keeps rotating, and the first electromagnetic proximity switch 2 keeps switching between on and off.

[0029] In a preferred embodiment, the second speed detection device is a second electromagnetic proximity switch 2, the driven wheel is provided with a second hollow through hole, the second electromagnetic proximity switch 2 is arranged corresponding to the center of the second hollow through hole, the number of the second hollow through hole is four, the four second hollow through holes are uniformly arranged along the circumference of the driven wheel 7, each first hollow through hole 3 is a circular through hole, the side surface between each second hollow through hole is a second cast iron surface, the second electromagnetic proximity switch 2 is used for detecting the rotating speed of the driven wheel 7, since there are four second hollow through holes on the driven wheel 7, there is no medium at this position, and the remaining part is the second cast iron surface, the installation position of the second electromagnetic proximity switch 2 is the upper part of the side surface of the driven wheel 7, the midpoint position of one of the second hollow through holes, parallel to the installation of the driven wheel 7. When the roller starts to rotate to the position of the four second hollow through holes, the second electromagnetic proximity switch 2 is opened. The second electromagnetic proximity switch 2 is closed at the remaining position. The driven wheel 7 keeps rotating, and the second electromagnetic proximity switch 2 keeps switching between on and off.

[0030] Use process: after the driving motor of the material conveying belt 8 is started, the belt 8 starts to run, when the driving wheel 1 reaches the detection speed in the DCS control system, namely the on-off switching of the first electromagnetic proximity switch 2 is completed within the specified time, it is judged that the belt 8 enters the normal uniform speed running state. At this time, the driven wheel 7 starts to enter the speed detection state, namely the on-off switching time of the second electromagnetic proximity switch 2. When the time is completed within the set time, it is judged that the belt 8 is normally running at this time; when the time exceeds the set time, it is judged that the belt 8 and the driven wheel 7 are out of synchronization at this time, the belt 8 has wear phenomenon, the DCS control system interlocks and outputs the parking instruction, stops the belt 8 driving motor from running, and ensures that the equipment is not damaged.

[0031] The principle and implementation mode of the specific examples are used in the utility model to illustrate the principle and implementation mode of the utility model, and the above embodiment is only used to help understand the method and core idea of the utility model; meanwhile, according to the idea of the utility model, the specific implementation mode and application range will be changed by the general technical personnel in the field. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A protection device for preventing belt wear, characterized by: The utility model relates to a kind of drive motor control system, including: Driving wheel, the driving wheel is used to connect with the output shaft of driving motor; Driven wheel, Belt, the belt is used to set in the outside of the driving wheel and the driven wheel, and the belt can drive the driven wheel with the driving wheel synchronous rotation under the driving of the driving wheel; First speed detection device, the first speed detection device is used to determine the rotation speed of driving wheel; Second speed detection device, the second speed detection device is used to measure the rotation speed of the driven wheel; And DCS control system, the DCS control system is connected with the first speed detection device, the second speed detection device and driving motor signal.

2. The belt wear prevention protection device according to claim 1, characterized in that: The driving wheel and the driven wheel are structurally identical.

3. The belt wear prevention device according to claim 2, wherein: The central axis of the driving wheel is used to be fixedly connected with the output shaft of the driving motor.

4. The belt wear prevention device according to claim 3, wherein: The first speed detection device is first electromagnetic proximity switch, the driving wheel is provided with first hollow through hole, and the first electromagnetic proximity switch is correspondingly arranged with the center of the first hollow through hole.

5. The belt wear prevention device according to claim 4, wherein: The number of the first hollow through hole is four, and four first hollow through holes are evenly arranged along the circumference of the driving wheel.

6. A belt wear prevention device according to claim 5, wherein: Each first hollow through hole is circular through hole, and the side surface between each first hollow through hole is first cast iron surface.

7. A belt wear prevention device according to claim 6, wherein: The second speed detection device is second electromagnetic proximity switch, the driven wheel is provided with second hollow through hole, and the second electromagnetic proximity switch is correspondingly arranged with the center of the second hollow through hole.

8. A belt wear prevention device according to claim 7, wherein: The number of the second hollow through hole is four, and four second hollow through holes are evenly arranged along the circumference of the driven wheel.

9. A belt wear prevention device according to claim 8, wherein: Each first hollow through hole is circular through hole, and the side surface between each second hollow through hole is second cast iron surface.

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