Method for monitoring tensioning fatigue threshold value of gravel conveyor belt machine

Abstract

The invention discloses a gravel conveyor belt machine tensioning fatigue threshold value monitoring method, which comprises the step of realizing a monitoring process of monitoring a conveyor belt tensioning limit threshold value by utilizing a gravel conveyor belt machine tensioning fatigue threshold value monitoring system. The conveyor belt collects section width data through the data collection device A and collects crack data through the data collection device B for comprehensive judgment, so that the telescopic push rod is controlled to drive the tensioning wheel to tension the distance amount, and the situation that the conveyor belt is still pulled down and tensioned when reaching the tensioning limit threshold value is avoided. The problem that due to the fact that the tension limit threshold value of the conveying rubber belt cannot be monitored, the conveying rubber belt is still pulled down and tensioned when reaching the tension limit threshold value is solved.

Description

Technical Field

[0001] The invention relates to a method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt, and belongs to the technical field of sand and gravel production. Background Art

[0002] When the sand and gravel production line produces machine-made sand and gravel, the sand and gravel need to be transported by a belt conveyor, see Chinese patent publication number CN201296504Y.

[0003] The conveyor belt of the belt conveyor will undergo elastic deformation during operation, causing the length of the conveyor belt to increase and become loose as a whole, and the conveyor belt needs to be tensioned. The existing tensioning technology, see Chinese patent publication number CN115892865A, although the gravity of the free hanging state of the weight is used to continuously pull down the conveyor belt; however, the tension limit threshold of the conveyor belt cannot be monitored, resulting in the conveyor belt still being pulled down and tensioned when the tension limit threshold is reached. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt.

[0005] The present invention is achieved through the following technical solutions.

[0006] The present invention provides a method for monitoring the tension fatigue threshold of a gravel conveyor belt machine, comprising: utilizing a gravel conveyor belt machine tension fatigue threshold monitoring system to implement a monitoring process of monitoring the conveyor belt tension limit threshold.

[0007] The monitoring process includes: data acquisition device A collects the decrease in the cross-sectional width of the conveyor belt, and data acquisition device B collects the presence of slight cracks in the conveyor belt, indicating that the elastic deformation of the conveyor belt tensioning has reached the limit threshold, the control center shuts down the belt conveyor, controls the telescopic push rod to no longer extend to tension the conveyor belt, and replaces the conveyor belt.

[0008] The monitoring process also includes:

[0009] The rotation data of the marking point on the conveyor belt is collected by the data acquisition device C, and the original rotation length of the marking point is L1;

[0010] When the conveyor belt rotates on the conveyor belt to transport sand and gravel, the data acquisition device C collects the rotation update data L2 of the marking point. Every time the marking point rotates, the L and L data are transmitted back to the control center for difference calculation to obtain the value L q , and transmits the information back to the control center to control the telescopic push rod to extend the tension wheel by L q Half the distance, so that the conveyor belt is tensioned on both sides of the tensioning wheel to a fixed distance of L q .

[0011] The sand and gravel conveyor belt tension fatigue threshold monitoring system comprises:

[0012] Conveyor belts as part of a belt conveyor;

[0013] Data acquisition device A, data acquisition device B, and data acquisition device C located in the space above the conveyor belt;

[0014] Data acquisition device A collects data on the cross-sectional width of the conveyor belt, data acquisition device B collects data on whether the conveyor belt has cracks, and data acquisition device C collects data on the rotation of marking points on the conveyor belt.

[0015] The utility model also comprises a tensioning wheel for pressing down the conveying belt, and the tensioning wheel can be rotatably installed on the telescopic push rod.

[0016] The conveyor belt above the tensioning wheel is equipped with a direction-changing wheel, and the direction-changing wheels are divided into two groups distributed at intervals, so that the conveyor belt is gradually changed to the tensioning wheel.

[0017] The conveyor belt on the side of the deflection wheel is contacted with a scraper, the bottom of the scraper can be rotatably hinged on the mounting plate, the mounting plate is in a fixed state, and a spring is connected to the mounting plate to connect the scraper. The spring pulls the scraper to always keep close contact with the conveyor belt.

[0018] The beneficial effect of the present invention is that the conveyor belt collects cross-sectional width data through the data acquisition device A, and the data acquisition device B collects crack data for comprehensive judgment, thereby controlling the telescopic push rod to drive the tensioning wheel to tension the distance, thereby avoiding the situation where the conveyor belt is still pulled down for tensioning when the tensioning limit threshold is reached, and solving the problem that the conveyor belt tensioning limit threshold cannot be monitored, resulting in the conveyor belt still being pulled down for tensioning when the tensioning limit threshold is reached. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the layout and distribution of the system of the present invention;

[0020] Figure 2 It is a side view of the data acquisition device, the mounting frame, and the conveyor belt distribution of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the data acquisition device of the present invention in the vertical direction of the conveyor belt;

[0022] Figure 4 It is a structural schematic diagram of the data acquisition device of the present invention not being in the vertical direction of the conveyor belt;

[0023] In the figure: 1-driving roller; 2-driven roller; 3-conveying belt; 31-marking point; 41-data acquisition device A; 42-data acquisition device B; 43-data acquisition device C; 51-tensioning wheel; 52-telescopic push rod; 53-scraper; 54-mounting plate; 55-spring; 56-direction-changing wheel; 7-mounting frame. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0025] like Figures 1 to 4 shown.

[0026] A system for monitoring the tension fatigue threshold of a gravel conveyor belt machine of the present application comprises:

[0027] A belt conveyor for conveying sand and gravel, wherein a conveying belt 3 of the belt conveyor is installed on a driving roller 1 and a driven roller 2, the driving roller 1 is driven to rotate by a motor, and the driven roller 2 transmits the rotational inertia of the driving roller 1 through the conveying belt 3.

[0028] The data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are located in the space above the conveyor belt 3. The data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are all composed of high-definition cameras. The data acquisition device A41 collects the cross-sectional width data of the conveyor belt 3, the data acquisition device B42 collects the data on whether the conveyor belt 3 has a crack, and the data acquisition device C43 collects the rotation data of the marking point 31 on the conveyor belt 3.

[0029] The data collected by the data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are transmitted back to the control center; the data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are supported and installed in the space above the conveyor belt 3 through the mounting frame 7.

[0030] The device also includes a tensioning wheel 51 for pressing down the conveying belt 3, and the tensioning wheel 51 is rotatably mounted on a telescopic push rod 52; the telescopic push rod 52 is an electric telescopic push rod. The fixed end of the telescopic push rod 52 is fixed, and the telescopic end of the telescopic push rod 52 is rotatably mounted on the tensioning wheel 51.

[0031] The conveyor belt 3 above the tensioning wheel 51 is equipped with a direction-changing wheel 56 . The direction-changing wheels 56 are divided into two groups distributed at intervals, so that the conveyor belt 3 is gradually changed to the tensioning wheel 51 .

[0032] The conveyor belt 3 on the side of the redirecting wheel 56 is contacted with a scraper 53, and the bottom of the scraper 53 can be rotatably hinged on the mounting plate 54, and the mounting plate 54 is in a fixed state. A spring 55 is connected to the mounting plate 54 to connect the scraper 53. The spring 55 pulls the scraper 53 to always keep in close contact with the conveyor belt 3. The scraper 53 scrapes off the mud and sand on the conveyor belt 3 to prevent the mud and sand from entering the redirecting wheel 56.

[0033] When the conveyor belt 3 becomes longer and needs to be tensioned, the telescopic push rod 52 moves downward with the tensioning wheel 51 at a fixed extension amount to achieve directional distance tensioning of the conveyor belt 3. When vibration occurs during operation, the telescopic push rod 52 will not jump and generate impulse to pull the conveyor belt 3 to change direction.

[0034] A method for monitoring the tension fatigue threshold of a gravel conveyor belt machine of the present application comprises the following steps:

[0035] A tension fatigue threshold monitoring system for a sand and gravel conveyor belt was built, and the rotation data of the marking point 31 on the conveyor belt 3 was collected through the data acquisition device C43. The original rotation length of the marking point 31 was L1.

[0036] When the conveyor belt 3 rotates on the conveyor belt to transport sand and gravel, the data acquisition device C43 collects the rotation data L2 of the mark point 31. Every time the mark point 31 rotates, the data L2 and L1 are transmitted back to the control center for difference calculation to obtain the value L q (L q = L2-L1), and transmits the information back to the control center to control the telescopic push rod 52 to extend the tension wheel 51 by L q Half the distance, so that the conveyor belt 3 is tensioned on both sides of the tensioning wheel 51 to a fixed distance L q .

[0037] When the data acquisition device A41 detects that the cross-sectional width of the conveyor belt 3 becomes smaller, and the data acquisition device B42 detects that the conveyor belt 3 has slight cracks, it means that the elastic deformation of the tensioning conveyor belt 3 has reached the limit threshold. At this time, the control center shuts down the belt conveyor, controls the telescopic push rod 52 to no longer extend to tension the conveyor belt 3, and then replaces the conveyor belt 3.

[0038] The conveyor belt 3 collects cross-sectional width data through the data acquisition device A41, and the crack data through the data acquisition device B42 for comprehensive judgment, thereby controlling the telescopic push rod 52 to drive the tensioning wheel 51 to tension the distance, thereby avoiding the conveyor belt 3 from being pulled down for tensioning when the tensioning limit threshold is reached, and solving the problem that the conveyor belt tensioning limit threshold cannot be monitored, resulting in the conveyor belt being pulled down for tensioning when the tensioning limit threshold is reached.

[0039] A mounting frame 7 of a gravel conveyor belt threshold monitoring data acquisition device used in the present application comprises:

[0040] A mounting base plate 71 is used to be fixed on the production floor, and a lifting rod 72 that can be raised and lowered is fixed on the mounting base plate 71. The lifting rod 72 is composed of a lifting threaded rod. The fixed bottom of the lifting rod 72 is fixedly mounted on the mounting base plate 71, and a sleeve 73 is rotatably mounted on the top of the telescopic end of the lifting rod 72 through a bearing. A hanging rod 73 is hingedly connected to the sleeve 73 so as to rotate up and down. A clamping sleeve 75 is clamped in the middle of the hanging rod 73, and the clamping sleeve 75 is fixed on the diagonal support rod 76. The clamping sleeve 75 is fixed to the fixed bottom of the lifting rod 72 through the diagonal support rod 76.

[0041] The data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are installed at the outer end of the suspension rod 73, and the data acquisition device A41, the data acquisition device B42, and the data acquisition device C43 are suspended in the space above the conveyor belt 3.

[0042] When the data acquisition equipment A41, the data acquisition equipment B42, and the data acquisition equipment C43 need to be repaired, the suspension rod 73 is rotated and lifted upward on the casing 73, and then the suspension rod 73 is rotated through the casing 73 at the top of the telescopic end of the lifting rod 72 away from the space above the conveyor belt 3, and the data acquisition equipment A41, the data acquisition equipment B42, and the data acquisition equipment C43 are repaired and replaced in a space that does not interfere with the vertical direction of the conveyor belt 3.

Claims

1. A method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt, characterized in that: The gravel conveyor belt tension fatigue threshold monitoring system is used to realize the monitoring process of the conveyor belt tension limit threshold.

2. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 1, characterized in that: The monitoring process includes: the data acquisition device A (41) collects the decrease in the cross-sectional width of the conveyor belt (3), and the data acquisition device B (42) collects the presence of slight cracks in the conveyor belt (3), indicating that the elastic deformation of the tension of the conveyor belt (3) has reached a limit threshold, the control center shuts down the belt conveyor, controls the telescopic push rod (52) to stop extending to tension the conveyor belt (3), and replaces the conveyor belt (3).

3. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 2, characterized in that: The monitoring process also includes: The rotation data of the marking point (31) on the conveyor belt (3) is collected by a data collection device C (43), wherein the original rotation length of the marking point (31) is L1; When the conveyor belt (3) rotates on the conveyor belt to transport sand and gravel, the data acquisition device C (43) collects the rotation update data L2 of the marking point (31). Every time the marking point (31) rotates, the data L(2) and L(1) are transmitted back to the control center for difference calculation to obtain the value L q , the control center controls the telescopic push rod (52) to extend the tension wheel (51) by L q Half the distance, so that the conveyor belt (3) is tensioned on both sides of the tensioning wheel (51) to a fixed distance L q .

4. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 1 or 2, characterized in that: The sand and gravel conveyor belt tension fatigue threshold monitoring system comprises: A conveyor belt (3) as part of a belt conveyor; Data acquisition device A (41), data acquisition device B (42), and data acquisition device C (43) located in the space above the conveyor belt (3); The data acquisition device A (41) acquires data on the cross-sectional width of the conveyor belt (3), the data acquisition device B (42) acquires data on whether the conveyor belt (3) has cracks, and the data acquisition device C (43) acquires data on the rotation of the marking point (31) on the conveyor belt (3).

5. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 2, characterized in that: It also comprises a tensioning wheel (51) for pressing down the conveying belt (3), and the tensioning wheel (51) is rotatably mounted on the telescopic push rod (52).

6. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 5, characterized in that: The conveyor belt (3) above the tensioning wheel (51) is equipped with a direction-changing wheel (56), and the direction-changing wheels (56) are divided into two groups distributed at intervals, so that the conveyor belt (3) gradually changes direction to the tensioning wheel (51).

7. The method for monitoring the tension fatigue threshold of a gravel conveyor belt according to claim 6, characterized in that: The conveyor belt (3) at the side of the deflection wheel (56) is contacted with a scraper (53), the bottom of the scraper (53) is rotatably hinged on a mounting plate (54), the mounting plate (54) is in a fixed state, and a spring (55) is connected to the mounting plate (54) to connect the scraper (53), and the spring (55) pulls the scraper (53) to always closely contact the conveyor belt (3).

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