A test method and test bench for curved belt conveyor

Abstract

The present invention relates to the field of testing technical parameters for bulk material conveying, and more specifically, to a test method and test bench for a curved belt conveyor. The method comprises the following steps: using a test device I to detect the deviation amount and tension of a conveyor belt; using a test device II to detect the force exerted by the conveyor belt on the neutral roller of a bearing section roller group of a curved belt conveyor roller group; using a test device III to detect the support reaction force of a support leg of the test device III when the conveyor belt is running; and optimizing the operating parameters of the curved belt conveyor based on the measurement results to achieve the goal of preventing the conveyor belt from flipping, deviation, and scattering. The method establishes a relationship with the curve radius of the curved belt conveyor, thereby obtaining the optimal turning radius of the curved section, thereby reducing the production cost of the curved belt conveyor.

Description

Technical Field

[0001] The present invention relates to the field of bulk material conveying technical parameter testing, and more particularly to a curved belt conveyor testing method and a test bench. Background Art

[0002] Currently, the design of belt conveyor curves primarily involves studying the radius of curvature of the curve, arranging rollers in the curve, and analyzing resistance in the curve. By analyzing the centripetal force of the conveyor belt, the forces acting on the material on the belt, and the forces acting on the conveyor belt itself, the turning radius of the curve is determined. The deviation of the belt, the forces acting on the rollers, and the forces acting on each component of a curved belt conveyor are typically calculated using formulas or simulations. However, it is impossible to predict the operating status of the conveyor based on the actual forces acting on the conveyor components during actual operation. This increases the manufacturing cost of the conveyor and makes it impossible to predict failures in order to achieve stable conveyor operation.

[0003] Therefore, it is necessary to improve the existing technology. Summary of the Invention

[0004] In order to overcome the deficiencies in the prior art, a test method and a test bench for a curved belt conveyor are provided.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A test method for a curved belt conveyor, comprising:

[0007] S1. Installing test device I, test device II, and test device III within the curved section of the curved belt conveyor belt, wherein each of the test device I, test device II, and test device III is connected to a curved belt conveyor roller assembly, wherein the load-bearing section roller assembly and the return section roller assembly of the curved belt conveyor roller assembly cooperate with the load-bearing section and return section of the conveyor belt, respectively;

[0008] S2. Use test device I to detect the deviation and tension of the conveyor belt. Use test device II to detect the force exerted by the conveyor belt on the neutral roller of the load-bearing section roller group of the curved belt conveyor. Use test device III to detect the support reaction force of the support legs of test device III when the conveyor belt is running.

[0009] S3. Collect the test data of test device I, test device II, and test device III, and compare them with the theoretical reference values ​​respectively.

[0010] Furthermore, the method further includes: S4, if the detected data exceeds the reference value range, adjusting the groove angle, the elevation angle of the idler group of the curved belt conveyor's load-bearing section and the idler group of the curved belt conveyor's return section, the frequency conversion tensioning force of the curved belt conveyor's tail, and / or changing the curve radius of the curved belt conveyor, and re-running S2 to S4 until it stabilizes within the reference value range;

[0011] Furthermore, in S1, the test device I, the test device II, and the test device III can be installed and tested at multiple test points according to test requirements.

[0012] Furthermore, in S2, the test device I includes a test device I support connecting rod, a support frame connecting rod, an industrial camera, and a tension sensor. The test device I support connecting rod is arranged at the upper end of the roller group of the curved belt conveyor bearing section. The industrial camera is arranged on the test device I support connecting rod by adjusting the bracket. The angle of the industrial camera is adjusted so that it faces the edge of the conveyor belt and collects the deviation of the conveyor belt.

[0013] The support frame connecting rod is located at the lower side of the roller group of the curved belt conveyor bearing section. The support frame connecting rod is connected to the tension sensor bracket by bolts. The tension sensor is arranged on the tension sensor bracket. The tension sensor is located at the lower end of the conveyor belt and is used to collect the conveyor belt tension data.

[0014] Further, in S2, the test device II includes a test device II support frame, a tension sensor, and a tension and pressure sensor. Two test device II support frames are provided and are respectively arranged on both sides of the curved belt conveyor roller group. The lower end of each test device II support frame is provided with a test device II anchor fixing plate, one of the test device II support frames is hinged to the test device II anchor fixing plate, and one end of a limiting support plate is welded to the test device II anchor fixing plate, and the other end of the limiting support plate limits the test device II support frame;

[0015] The lower ends of both sides of the roller frame of the curved belt conveyor roller group are both set on the test device II anchor fixed plate, the vertical roller of the curved belt conveyor load-bearing section roller group is separately connected to the test device II support frame on one side through a fixed support plate, and the tension and pressure sensor is installed on the fixed support plate at the lower end of the vertical roller by bolts to detect the vertical direction force of the conveyor belt on the vertical roller;

[0016] The two test device II support frames are connected by a same tension sensor through a steel wire rope, which is used to detect the horizontal force of the conveyor belt opposing rollers. A locking device is provided on the steel wire rope.

[0017] Furthermore, in S2, the test device III includes a pressure sensor, and a test device III foot fixing plate is hingedly connected to the lower end of one side of the roller frame of the curved belt conveyor roller group, and a pressure sensor is provided at the lower end of the other side of the roller frame of the curved belt conveyor roller group.

[0018] A curved belt conveyor test bench includes multiple groups of curved belt conveyor roller groups, wherein the load-bearing section roller groups and the return section roller groups of the same group of curved belt conveyor roller groups are arranged on the same roller frame, and further includes any one or more combinations of test device I, test device II, and test device III.

[0019] Furthermore, the test device I includes a test device I support frame, a test device I support connecting rod, a support frame connecting rod, an industrial camera and a tension sensor. The test device I support connecting rod is installed across the upper end of the curved belt conveyor roller group through the test device I support frame. The industrial camera is set on the test device I support connecting rod through an adjustment bracket. The angle of the industrial camera is adjusted so that it is facing the edge of the conveyor belt for collecting the conveyor belt deviation; the support frame connecting rod is set on the test device I support frame, and the support frame connecting rod is connected to the tension sensor bracket by bolts. The tension sensor is set on the tension sensor bracket. The tension sensor is located at the lower end of the conveyor belt for collecting conveyor belt tension data.

[0020] Furthermore, the test device II includes a left-end support frame of the test device II, a right-end support frame of the test device II, a tension sensor and a tension-pressure sensor. The left-end support frame of the test device II and the right-end support frame of the test device II are respectively arranged on both sides of the roller group of the curved belt conveyor. The lower end of the left-end support frame of the test device II is fixedly connected to the anchor plate of the test device II, and the lower end of the right-end support frame of the test device II is hinged to the anchor plate of the test device II. One end of the limit support plate is welded on the right-end anchor plate of the test device II, and the other end of the limit support plate is provided with a limit portion that cooperates with the right-end support frame of the test device II;

[0021] The lower ends of the roller frames of the curved belt conveyor roller group are respectively arranged on two test device II anchor fixing plates, and the vertical rollers of the curved belt conveyor roller group bearing section roller group are connected to the right end support frame of the test device II through the fixed support plate, and the tension and pressure sensor is installed on the fixed support plate at the lower end of the vertical roller by bolts;

[0022] The left end support frame of the test device II and the right end support frame of the test device II are connected to the same tension sensor via a steel wire rope, and a locking device is provided on the steel wire rope.

[0023] Furthermore, the test device III includes a pressure sensor and a test device III anchor fixing plate. The lower end of one side of the roller frame of the curved belt conveyor roller group is hinged with the test device III anchor fixing plate, and the lower end of the other side of the roller frame of the curved belt conveyor roller group is provided with a pressure sensor. The pressure sensor is fixed to the test device III anchor fixing plate by bolts.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention comprises a curved belt conveyor experimental system composed of a test device I, a test device II, and a test device III, which can effectively measure the deviation of the conveyor belt, the tension of the conveyor belt, the force of the opposing rollers of the conveyor belt, and the support reaction force of the support legs in the curved section of the curved belt conveyor during operation. The operating parameters of the curved belt conveyor are optimized based on the measurement results to ensure that the conveyor belt does not flip, deviate, loosen, or break. The relationship between the measurement results and the curve radius of the curved belt conveyor is established, and the optimal turning radius of the curved section is obtained, thereby reducing the production and manufacturing cost of the curved belt conveyor.

[0026] 2. The present invention detects the deviation and tension of the conveyor belt by means of an industrial camera and a tension sensor arranged on the test device I, thereby avoiding the occurrence of conveyor belt folding, overturning, and breaking. The present invention detects the horizontal and vertical forces of the vertical rollers at the detection points of the curved belt conveyor by means of a tension sensor and a tension-pressure sensor arranged on the test device II, thereby avoiding damage to the vertical rollers caused by long-term high-load operation. The present invention detects the support reaction force of the support legs by means of a pressure sensor arranged on the test device III, thereby avoiding uneven force on the support reaction force of the support legs, unbalanced loading of the support legs on both sides, and accidents such as overturning of the curved belt conveyor. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0028] Figure 1(a) is a schematic diagram of the front view of the test device I;

[0029] Figure 1(b) is a side view of the structure of the test device I;

[0030] Figure 2(a) is a schematic diagram of the front view of the test device II;

[0031] Figure 2(b) is a side view of the structure of the test device II;

[0032] Figure 3(a) is a schematic diagram of the front view of the test device III;

[0033] Figure 3(b) is a side view of the structure of the test device III;

[0034] Figure 4This is a flow chart of the test method for the curved belt conveyor of Example 2.

[0035] Figure: 1. Load-carrying roller group; 2. Return roller group; 3. Test device I; 3-1. Support frame of test device I; 3-2. Support connecting rod of test device I; 3-3. Adjustment bracket; 3-4. Industrial camera; 3-5. Support frame connecting rod; 3-6. Tension sensor bracket; 3-7. Tension sensor; 4. Conveyor belt; 5. Test device II; 5-1. Support frame at the left end of test device II; 5-2. Steel wire rope; 5-3. Tension sensor; 5-4. Locking device; 5 -5. Vertical roller; 5-6. Fixed support plate; 5-7. Tensile pressure sensor; 5-8. Limit support plate; 5-9. Right end support frame of test device II; 5-10. Pin; 5-11. Hinge support of test device II; 5-12. Anchor plate of test device II; 6. Test device III; 6-1. Roller frame; 6-2. Pin; 6-3. Hinge support of test device III; 6-4. Support leg of test device III; 6-5. Pressure sensor; 6-6. Anchor plate of test device III. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] Example 1:

[0038] As shown in Figures 1 to 3, a curved belt conveyor test bench includes any one or more combinations of test device I3, test device II5, and test device III6, and multiple groups of curved belt conveyor roller groups; wherein: test device I3 is used to detect the deviation amount and conveyor belt tension of the conveyor belt 4, test device II5 is used to detect the force of the conveyor belt 4 on the neutral roller 5-5 of the load-bearing section roller group 1 of the curved belt conveyor roller group, and test device III6 is used to detect the support reaction force of the test device III support leg when the conveyor belt 4 is running; the load-bearing section roller group 1 and the return section roller group 2 of the curved belt conveyor roller group in the same group are arranged on the same roller frame 6-1.

[0039] The test device I 3 includes a test device I support frame 3-1, a test device I support connecting rod 3-2, a support frame connecting rod 3-5, an industrial camera 3-4 and a tension sensor 3-7. Two test device I support frames 3-1 are provided. The test device I support connecting rod 3-2 is installed across the upper end of the curved belt conveyor roller group through the test device I support frame 3-1. The industrial camera 3-4 is set on the test device I support connecting rod 3-2 through the adjustment bracket 3-3. The installation position of the adjustment bracket 3-3 on the test device I support connecting rod 3-2 and the adjustment bracket 3-3 itself can be adjusted. By facing the angle of the industrial camera 3-4 to the edge of the conveyor belt 4, the deviation of the conveyor belt 4 can be collected.

[0040] The support frame connecting rod 3-5 is set on the support frame 3-1 of the test device I. The support frame connecting rod 3-5 is connected to the tension sensor bracket 3-6 by bolts. The connection point and connection angle of the support frame connecting rod 3-5 and the tension sensor bracket 3-6 can be adjusted. The tension sensor 3-7 is set on the tension sensor bracket 3-6. The position of the bolt connection point of the tension sensor bracket 3-6 on the support frame connecting rod 3-5 is adjusted so that the tension sensor 3-7 can be aligned with the middle and left and right sides of the conveyor belt 4 respectively, and collect the conveyor belt tension data close to the lower side of the conveyor belt 4.

[0041] The test device II 5 includes a left-end support frame 5-1 of the test device II, a right-end support frame 5-9 of the test device II, a tension sensor 5-3 and a tension-pressure sensor 5-7. The left-end support frame 5-1 of the test device II and the right-end support frame 5-9 of the test device II are respectively arranged on both sides of the curved belt conveyor roller group. The vertical roller 5-5 of the roller group 1 of the bearing section of the curved belt conveyor roller group is connected to the right-end support frame 5-9 of the test device II through a fixed support plate 5-6. The tension-pressure sensor 5-7 is installed on the fixed support plate 5-6 at the lower end of the vertical roller 5-5 by bolts, and is used to detect the force applied to the vertical roller 5-5 in the vertical direction.

[0042] The lower end of the left end support frame 5-1 of the test device II is fixedly connected to the test device II anchor plate, the lower end of the right end support frame 5-9 of the test device II is hinged to the test device II anchor plate, and a limited support plate 5-8 is welded on the right side of the test device II anchor plate. The limited support plate 5-8 is set at an angle, and a limiting part that cooperates with the right end support frame 5-9 of the test device II is set on one side of the upper end of the limited support plate 5-8. The initial position of the right end support frame 5-9 of the test device II is adjusted by the limited support plate 5-8. The left end support frame 5-1 of the test device II and the right end support frame 5-9 of the test device II are connected to the same tension sensor 5-3 through a wire rope 5-2. A locking device 5-4 is provided on the wire rope 5-2. The tension sensor 5-3 is in a pre-tightened state through the limit support plate 5-8 and the locking device 5-4. When the opposing rollers generate force during the operation of the conveyor belt, the data collected by the tension sensor 5-3 is the horizontal force of the conveyor belt 4 on the opposing rollers 5-5.

[0043] In order to make the test results more accurate, the lower ends of the roller frames 6-1 on both sides of the curved belt conveyor roller group are respectively set on two test device II anchor fixing plates.

[0044] The test device III 6 includes a pressure sensor 6-5 and a test device III anchor plate 6-6. The test device III anchor plate 6-6 is hinged at the lower end of one side of the roller frame 6-1 of the curved belt conveyor roller group, and a pressure sensor 6-5 is provided at the lower end of the other side of the roller frame 6-1 of the curved belt conveyor roller group. The pressure sensor 6-5 is fixed to the test device III anchor plate 6-6 by bolts. The data collected by the pressure sensor 6-5 is the size of the support reaction force of the support leg.

[0045] Example 2:

[0046] As shown in Figure 1 to Figure 4 As shown, a test method for a curved belt conveyor includes:

[0047] S1. Test devices I3, II5, and III6 are installed within the curved section of the curved belt conveyor belt 4. Test devices I3, II5, and III6 can be installed and tested at multiple test points according to test requirements. Test devices I3, II5, and III6 are all connected to the curved belt conveyor roller group. The load-bearing section roller group 1 and the return section roller group 2 of the curved belt conveyor roller group cooperate with the load-bearing section and return section of the conveyor belt 4, respectively.

[0048] S2. Data detection:

[0049] S2.1. Use test device I 3 to detect conveyor belt 4's deviation and belt tension. Test device I 3 includes test device I support connecting rod 3-1, support frame connecting rod 3-5, industrial camera 3-4, and tension sensor 3-7. Test device I support connecting rod 3-1 is mounted on the upper end of the curved belt conveyor's load-bearing section roller assembly 1. Industrial camera 3-4 is mounted on test device I support connecting rod 3-1 via an adjustable bracket 3-3. Adjust the angle of industrial camera 3-4 so that it faces the edge of conveyor belt 4. Start industrial camera 4 to detect conveyor belt deviation at the detection point on the curved belt conveyor and record the data.

[0050] The support frame connecting rod 3-5 is located on the underside of the curved belt conveyor's load-bearing section roller assembly 1. The support frame connecting rod 3-5 is bolted to a tension sensor bracket 3-6. A tension sensor 3-7 is mounted on the tension sensor bracket 3-6. The tension sensor 3-7 is located at the lower end of the conveyor belt 4. The tension sensor 3-7 can be aligned with the center and both sides of the conveyor belt 4. The tension of the conveyor belt is detected at the test points of the curved belt conveyor through the tension sensor 3-7 and the data is recorded. For curved belt conveyors, the tension values ​​in the center and on the left and right sides of the conveyor belt are different in the width direction of the conveyor belt. Therefore, a non-contact tension sensor is used to align and measure them separately.

[0051] S2.2. Use the test device II 5 to detect the force exerted by the conveyor belt 4 on the neutral roller 5-5 of the load-bearing section roller group 1 of the curved belt conveyor roller group. The test device II 5 includes a test device II support frame, a tension sensor 5-3 and a tension and pressure sensor 5-7. There are two test device II support frames and they are respectively arranged on both sides of the curved belt conveyor roller group. The lower end of the test device II support frame is provided with a test device II anchor plate. One of the test device II support frames is hinged to the test device II anchor plate and one end of the limit support plate 5-8 is welded to the test device II anchor plate. The other end of the limit support plate 5-8 is in initial state in contact with the inner side of the test device II support frame to limit the test device II support frame. The lower ends of both sides of the roller frame 6-1 of the curved belt conveyor roller group are set on the anchor fixing plate of the test device II. The vertical roller 5-5 of the curved belt conveyor load-bearing section roller group 1 is separately connected to the support frame of the test device II on one side through the fixed support plate 5-6. The tension and pressure sensor 5-7 is installed on the fixed support plate 5-6 at the lower end of the vertical roller 5-5 by bolts. The vertical force of the conveyor belt 4 on the vertical roller 5-5 is detected by the tension and pressure sensor 5-7, and the data is recorded.

[0052] The two test device II support frames are connected to the same tension sensor 5-3 through a wire rope 5-2, and the horizontal force of the conveyor belt 4 on the opposing roller 5-5 is detected by the tension sensor 5-3. A locking device 5-4 is provided on the wire rope 5-2.

[0053] S2.3. Use the test device III 6 to detect the support reaction force of the test device III support legs when the conveyor belt 4 is running. The test device III 6 includes a pressure sensor 6-5. The lower end of one side of the roller frame 6-1 of the curved belt conveyor roller group is hinged with a test device III foot fixing plate 6-6, and the lower end of the other side of the roller frame 6-1 of the curved belt conveyor roller group is provided with a pressure sensor 6-5. The magnitude of the support reaction force of the support legs is collected through the pressure sensor 6-5.

[0054] S3. Collect the test data of test device I3, test device II5, and test device III6, and compare them with the reference values ​​respectively:

[0055] S3.1. Compare the tension detection value of the conveyor belt at the detection point under different working conditions with the theoretical value of the detection point. If the tension detection value exceeds the theoretical maximum tension of the conveyor belt at the detection point, it is determined that the curved belt conveyor is operating irrationally under the working condition. It is necessary to promptly adjust the groove angle, lifting angle of the curved belt conveyor load-bearing section roller group 1 and the return section roller group 2, the frequency conversion tensioning force of the curved belt conveyor tail and / or change the curve radius of the curved belt conveyor, etc., so that the conveyor belt tension fluctuates within a reasonable tension range to avoid excessive conveyor belt tension and belt breakage accidents.

[0056] The deviation detection value under different working conditions is compared with the initial position of the conveyor belt 4 in the load-bearing section roller group 1 of the curved belt conveyor. Assuming that the deviation exceeds the theoretical reference value of one-third of the length of the vertical roller 5-5, it is determined that the curved belt conveyor is operating unreasonably under this working condition, and a series of measures need to be taken, such as adjusting the groove angle, lifting angle of the load-bearing section roller group 1 and the return section roller group 2 of the curved belt conveyor, the frequency conversion tension of the curved belt conveyor tail and / or changing the curve radius of the curved belt conveyor, to avoid the occurrence of conveyor belt folding, flipping, etc.

[0057] S3.2. Compare the stress conditions of the vertical roller 5-5 under different working conditions with the theoretical calculation and reference values. If the stress exceeds the theoretical calculation value and the reference value, it is determined that the curved belt conveyor is operating irrationally under this working condition. It is necessary to promptly adjust the groove angle, elevation angle of the curved belt conveyor's load-bearing section roller group 1 and the return section roller group 2, the frequency conversion tension of the curved belt conveyor's tail, and / or change the curve radius of the curved belt conveyor, etc., so that the vertical rollers are evenly stressed and avoid long-term load operation of the vertical rollers, which may cause damage to the rollers.

[0058] S3.3. Compare the support reaction force of the support legs of the measuring device III under different working conditions with the theoretical calculation value and the reference value. If it exceeds the theoretical calculation value and the reference value, it is determined that the curved belt conveyor is operating irrationally under this working condition. It is necessary to promptly adjust the groove angle, lifting angle of the curved belt conveyor's load-bearing section roller group 1 and the return section roller group 2, the frequency conversion tension of the curved belt conveyor's tail, and / or change the curve radius of the curved belt conveyor, etc., so that the support reaction force of the support legs is evenly distributed, avoiding unbalanced loading of the support legs on both sides, which may seriously cause accidents such as the curved belt conveyor overturning.

[0059] S4. When the test data exceeds the reference value range, repeat S2 to S4 after adjustment until the test data are all within the reference value range.

[0060] By installing test devices I, II, and III and analyzing the data collected at the test points, the operating status of the conveyor can be effectively predicted, the conveyor structure can be optimized, and the ability to predict failures can be acquired.

[0061] The above only describes in detail the preferred embodiments of the present invention, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention, and various changes should be included in the scope of protection of the present invention.

Claims

1. A curved belt conveyor test bench, comprising a plurality of curved belt conveyor roller groups, wherein the load-bearing section roller group (1) and the return section roller group (2) of the same curved belt conveyor roller group are arranged on the same roller frame (6-1), characterized in that: Also includes a test device I (3), a test device II (5) and a test device III (6); The test device I (3) comprises a test device I support frame (3-1), a test device I support connecting rod (3-2), a support frame connecting rod (3-5), an industrial camera (3-4) and a tension sensor (3-7), wherein the test device I support connecting rod (3-2) is installed across the upper end of the curved belt conveyor roller group through the test device I support frame (3-1), and the industrial camera (3-4) is arranged on the test device I support connecting rod (3-2) through the adjustment bracket (3-3), and the angle of the industrial camera (3-4) is adjusted so as to face the edge of the conveyor belt (4) for collecting the deviation of the conveyor belt (4); the support frame connecting rod (3-5) is arranged on the test device I support frame (3-1), the support frame connecting rod (3-5) is connected to the tension sensor bracket (3-6) by bolts, and the tension sensor (3-7) is arranged on the tension sensor bracket (3-6), and the tension sensor (3-7) is located at the lower end of the conveyor belt (4) for collecting the tension data of the conveyor belt (4); The test device II (5) comprises a left end support frame (5-1) of the test device II, a right end support frame (5-9) of the test device II, a tension sensor (5-3) and a tension pressure sensor (5-7); the left end support frame (5-1) of the test device II and the right end support frame (5-9) of the test device II are respectively arranged on both sides of the roller group of the curved belt conveyor; the lower end of the left end support frame (5-1) of the test device II is fixedly connected with a test device II anchor plate; the lower end of the right end support frame (5-9) of the test device II is hinged with a test device II anchor plate; one end of a limit support plate (5-8) is welded to the right test device II anchor plate; the other end of the limit support plate (5-8) is provided with a limit portion that matches the right end support frame (5-9) of the test device II; The lower ends of the roller frames (6-1) of the curved belt conveyor roller group are respectively arranged on two test device II foot fixing plates, the vertical rollers (5-5) of the curved belt conveyor roller group bearing section roller group (1) are connected to the right end support frame (5-9) of the test device II through the fixed support plate (5-6), and the tension and pressure sensor (5-7) is installed on the fixed support plate (5-6) at the lower end of the vertical roller (5-5) through bolts; A tension sensor (5-3) is connected between the left end support frame (5-1) of the test device II and the right end support frame (5-9) of the test device II via a steel wire rope (5-2), and a locking device (5-4) is provided on the steel wire rope (5-2).

2. A curved belt conveyor test bench according to claim 1, characterized in that: The test device III (6) comprises a pressure sensor (6-5) and a test device III anchor plate (6-6); the lower end of one side of the roller frame (6-1) of the curved belt conveyor roller group is hinged with the test device III anchor plate (6-6); the lower end of the other side of the roller frame (6-1) of the curved belt conveyor roller group is provided with a pressure sensor (6-5); the pressure sensor (6-5) is fixed to the test device III anchor plate (6-6) by bolts.

3. A test method applicable to the curved belt conveyor test bench according to any one of claims 1 or 2, characterized in that: include: S1. A test device I (3), a test device II (5) and a test device III (6) are arranged within the curved section of the conveyor belt (4) of the curved belt conveyor. The test device I (3), the test device II (5) and the test device III (6) are all connected to a curved belt conveyor roller group. The bearing section roller group (1) and the return section roller group (2) of the curved belt conveyor roller group are respectively matched with the bearing section and the return section of the conveyor belt (4); S2. Use the test device I (3) to detect the deviation and tension of the conveyor belt (4), use the test device II (5) to detect the force of the conveyor belt (4) on the neutral roller (5-5) of the bearing section roller group (1) of the curved belt conveyor roller group, and use the test device III (6) to detect the support reaction force of the support leg of the test device III when the conveyor belt (4) is running; S3. Collect the test data of test device I (3), test device II (5), and test device III (6), and compare them with the theoretical reference values ​​respectively.

4. A curved belt conveyor testing method according to claim 3, characterized in that: Also includes: S4. If the data obtained by the test exceeds the reference value range, adjust the groove angle, the lifting angle of the curved belt conveyor load-bearing section roller group (1), the curved belt conveyor return section roller group (2), the curved belt conveyor tail frequency conversion tension and / or change the curve radius of the curved belt conveyor, and re-run S2 to S4 until the test data are all within the reference value range.

5. A curved belt conveyor testing method according to claim 3, characterized in that: In S1, the test device I (3), the test device II (5), and the test device III (6) can all be installed and tested at multiple test points according to test requirements.

Images