Sandstone transport belt machine tension fatigue threshold monitoring method

Abstract

The application discloses a sandstone conveying belt machine tension fatigue threshold monitoring method, comprising the following steps: using a sandstone conveying belt machine tension fatigue threshold monitoring system to realize a monitoring process of monitoring a conveying belt tension limit threshold. The conveying belt collects section width data through a data acquisition equipment A and collects crack data through a data acquisition equipment B to comprehensively judge, so that a telescopic push rod drives a tensioning wheel to tension a distance, and the situation that the conveying belt is still pulled down to tension when reaching the tension limit threshold is avoided, and the problem that the conveying belt tension limit threshold cannot be monitored, so that the conveying belt is still pulled down to tension when reaching the tension limit threshold is solved.

Description

Technical Field

[0001] This invention relates to a method for monitoring the fatigue threshold of sand and gravel conveyor belt tension, belonging to the field of sand and gravel production technology. Background Technology

[0002] When a sand and gravel production line produces manufactured sand and gravel, it is necessary to transport the sand and gravel using a belt conveyor, as shown in Chinese Patent Publication No. CN201296504Y.

[0003] During operation, the conveyor belt of a belt conveyor undergoes elastic deformation, causing the belt to increase in length and become looser overall, necessitating tensioning. Existing tensioning technology, as described in Chinese Patent Publication No. CN115892865A, utilizes the continuous downward pull of gravity from a freely hanging weight on the conveyor belt; however, it cannot monitor the belt's tension limit threshold, resulting in the belt continuing to be tensioned even when the limit is reached. Summary of the Invention

[0004] To address the aforementioned technical problems, this 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 sand and gravel conveyor belt, comprising: using a sand and gravel conveyor belt tension fatigue threshold monitoring system to realize the monitoring process of monitoring the tension limit threshold of the conveyor belt.

[0007] The monitoring process includes: data acquisition device A collecting data showing a decrease in the cross-sectional width of the conveyor belt, and data acquisition device B collecting data showing a tiny crack in the conveyor belt, indicating that the elastic deformation of the conveyor belt has reached the limit threshold. The control center then shuts down the conveyor belt, controls the telescopic push rod to stop extending to tension the conveyor belt, and replaces the conveyor belt.

[0008] The monitoring process also includes:

[0009] Data acquisition device C collects rotation data of the marker points on the conveyor belt. The original rotation length of the marker 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 marker point. After each rotation of the marker point, the data L and L2 are transmitted back to the control center for difference calculation to obtain the value L. q The data is transmitted back to the control center to control the telescopic push rod to extend L along with the tension wheel. q Half the distance, so that the conveyor belt is tensioned to a fixed distance L on both sides of the tensioning wheel. q .

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

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

[0013] Data acquisition device A, data acquisition device B, and data acquisition device C are 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 the marked points on the conveyor belt.

[0015] It also includes a tensioning wheel that presses down on the conveyor belt, which is rotatably mounted on the telescopic push rod.

[0016] The conveyor belt located above the tensioning wheel is equipped with two sets of deflecting wheels that are spaced apart, so that the conveyor belt gradually changes direction onto the tensioning wheel.

[0017] A scraper is installed on the conveyor belt located on the side of the deflector wheel. The bottom of the scraper is rotatably hinged to the mounting plate. The mounting plate is fixed. A spring is connected to the mounting plate to connect the scraper. The spring pulls the scraper to keep it in close contact with the conveyor belt.

[0018] The beneficial effects of this invention are as follows: the conveyor belt is comprehensively judged by data acquisition device A collecting cross-sectional width data and data acquisition device B collecting tear data, thereby controlling the tensioning distance of the tensioning wheel driven by the telescopic push rod. This avoids the situation where the conveyor belt continues to be pulled down for tension when it reaches the tension limit threshold, and solves the problem that the conveyor belt cannot be monitored for the tension limit threshold, resulting in the conveyor belt continuing to be pulled down for tension when it reaches the tension limit threshold. Attached Figure Description

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

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

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

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

[0023] In the diagram: 1-Driven roller; 2-Driven roller; 3-Conveyor belt; 31-Marker 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-Directional wheel; 7-Mounting bracket. Detailed Implementation

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

[0025] like Figures 1 to 4 As shown.

[0026] This application discloses a tension fatigue threshold monitoring system for a sand and gravel conveyor belt, comprising:

[0027] A belt conveyor for transporting sand and gravel has a conveyor belt 3 mounted on a drive roller 1 and a driven roller 2. The drive roller 1 is driven to rotate by a motor, and the driven roller 2 transmits the rotational inertia of the drive roller 1 through the conveyor belt 3.

[0028] Data acquisition devices A41, B42, and C43 are located in the space above the conveyor belt 3. Each of the data acquisition devices A41, B42, and C43 consists of a high-definition camera. Data acquisition device A41 collects data on the cross-sectional width of the conveyor belt 3, data acquisition device B42 collects data on whether the conveyor belt 3 has any cracks, and data acquisition device C43 collects data on the rotation of the marker point 31 on the conveyor belt 3.

[0029] The data acquired by the data acquisition devices A41, B42, and C43 is transmitted back to the control center; the data acquisition devices A41, B42, and C43 are supported and installed above the conveyor belt 3 by the mounting bracket 7.

[0030] It also includes a tensioning wheel 51 that presses down on the conveyor belt 3. The tensioning wheel 51 is rotatably mounted on a telescopic push rod 52. The telescopic push rod 52 is an electrically operated 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 to the tensioning wheel 51.

[0031] The conveyor belt 3 located above the tensioning wheel 51 is equipped with a deflector wheel 56. The deflector wheels 56 are two sets of spaced-apart wheels, which cause the conveyor belt 3 to gradually change direction onto the tensioning wheel 51.

[0032] A scraper 53 is installed on the conveyor belt 3 located on the side of the deflector wheel 56. The bottom of the scraper 53 is rotatably hinged to the mounting plate 54. The mounting plate 54 is fixed. A spring 55 is connected to the mounting plate 54 to connect the scraper 53. The spring 55 pulls the scraper 53 to keep it 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 deflector wheel 56.

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

[0034] This application discloses a method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt, comprising the following steps:

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

[0036] When the conveyor belt 3 rotates on the conveyor belt conveyor to transport sand and gravel, the data acquisition device C43 collects and updates the data L2 at each rotating point 31. After each rotation at each marker point 31, 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), the data is transmitted back to the control center to control the telescopic push rod 52 to extend L along with the tension wheel 51. q Half the distance, so that the conveyor belt 3 is tensioned at a fixed distance L on both sides of the tensioning wheel 51. q .

[0037] When data acquisition device A41 detects a decrease in the cross-sectional width of conveyor belt 3, and data acquisition device B42 detects a minor crack in conveyor belt 3, it indicates that the elastic deformation of conveyor belt 3 has reached its limit threshold. At this time, the control center shuts down the conveyor belt and controls the telescopic push rod 52 to stop extending to tension conveyor belt 3, and then replaces conveyor belt 3.

[0038] The conveyor belt 3 collects cross-sectional width data through data acquisition device A41 and tear data through data acquisition device B42 for comprehensive judgment, thereby controlling the tensioning distance of the tensioning wheel 51 driven by the telescopic push rod 52. This avoids the situation where the conveyor belt 3 continues to be pulled down for tension when it reaches the tension limit threshold, and solves the problem that the conveyor belt cannot be monitored for the tension limit threshold, which causes the conveyor belt to continue to be pulled down for tension when it reaches the tension limit threshold.

[0039] The mounting bracket 7 of the threshold monitoring data acquisition device for sand and gravel conveyor belts used in this application includes:

[0040] A mounting base plate 71 is used to fix the lifting rod 72 on the production floor. The lifting rod 72 is composed of a lifting threaded rod. The bottom of the lifting rod 72 is fixedly mounted on the mounting base plate 71. The top of the telescopic end of the lifting rod 72 is rotatably mounted with a sleeve 73 through a bearing. A suspension rod 73 is hinged to the sleeve 73 and can rotate up and down. A retaining sleeve 75 is clamped in the middle of the suspension rod 73. The retaining sleeve 75 is fixed to the diagonal brace 76 and fixed to the bottom of the lifting rod 72 through the diagonal brace 76.

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

[0042] When data acquisition devices A41, B42, and C43 need to be inspected, the suspension rod 73 rotates upward on the housing 73 and then rotates back through the housing 73 at the top of the telescopic end of the lifting rod 72 away from the space above the conveyor belt 3, in a space that does not interfere with the vertical direction of the conveyor belt 3, to repair or replace data acquisition devices A41, B42, and C43.

Claims

1. A method for monitoring the fatigue threshold of a sand and gravel conveyor belt, characterized in that, The tension fatigue threshold monitoring system for sand and gravel conveyor belts is used to monitor the tension limit threshold of the conveyor belt. The sand and gravel conveyor belt tension fatigue threshold monitoring system includes: Conveyor belt (3) as part of a conveyor belt machine; Data acquisition device A (41), data acquisition device B (42), and data acquisition device C (43) are located in the space above the conveyor belt (3); Data acquisition device A (41) collects the cross-sectional width data of the conveyor belt (3), data acquisition device B (42) collects the data on whether the conveyor belt (3) has cracks, and data acquisition device C (43) collects the rotation data of the mark point (31) on the conveyor belt (3). The monitoring process includes: data acquisition device A (41) collecting data on the narrowing of the cross-sectional width of the conveyor belt (3), and data acquisition device B (42) collecting data on the presence of minute cracks in the conveyor belt (3), indicating that the tension elastic deformation of the conveyor belt (3) has reached the limit threshold. The control center shuts down the conveyor belt, controls the telescopic push rod (52) to stop extending to tension the conveyor belt (3), and replaces the conveyor belt (3). The monitoring process also includes: The rotation data of the marker point (31) on the conveyor belt (3) is collected by the data acquisition device C (43), and the original rotation length of the marker 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 data L2 of the marker point (31) during rotation. Each time the marker point (31) rotates, the data of L2 and L1 are transmitted back to the control center for difference calculation to obtain the value L. q The control center sends a signal to the telescopic push rod (52), which, along with the tension wheel (51), extends the telescopic push rod by L. q Half the distance, so that the conveyor belt (3) is tensioned at a fixed distance on both sides of the tensioning wheel (51) to reach L. q .

2. The method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt as described in claim 1, characterized in that: It also includes a tensioning wheel (51) that presses down on the conveyor belt (3), and the tensioning wheel (51) is rotatably mounted on the telescopic push rod (52).

3. The method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt as described in claim 2, characterized in that: The conveyor belt (3) located above the tension wheel (51) is equipped with a deflector wheel (56). The deflector wheels (56) are two sets of spaced-apart wheels, which cause the conveyor belt (3) to gradually change direction onto the tension wheel (51).

4. The method for monitoring the tension fatigue threshold of a sand and gravel conveyor belt as described in claim 3, characterized in that: The conveyor belt (3) located on the side of the deflector wheel (56) is fitted with a scraper (53). The bottom of the scraper (53) is rotatably hinged to the mounting plate (54). The mounting plate (54) is fixed. A spring (55) is connected to the mounting plate (54). The spring (55) is connected to the scraper (53). The spring (55) pulls the scraper (53) to keep it in close contact with the conveyor belt (3).

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