LU501524B1 - Conveyor belt comprehensive performance parameter test device - Google Patents
Conveyor belt comprehensive performance parameter test device Download PDFInfo
- Publication number
- LU501524B1 LU501524B1 LU501524A LU501524A LU501524B1 LU 501524 B1 LU501524 B1 LU 501524B1 LU 501524 A LU501524 A LU 501524A LU 501524 A LU501524 A LU 501524A LU 501524 B1 LU501524 B1 LU 501524B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- tear
- oil cylinder
- sprocket
- clamping
- tension
- Prior art date
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/001—Impulsive
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0091—Peeling or tearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/026—Specifications of the specimen
- G01N2203/0262—Shape of the specimen
- G01N2203/0278—Thin specimens
- G01N2203/0282—Two dimensional, e.g. tapes, webs, sheets, strips, disks or membranes
Abstract
The present invention relates to a comprehensive performance parameters experiment platform for a mining conveyor belt and fundamentally solves the problems of the singleness of test parameters, poor control of precision, and large energy consumption of a test bench. The experiment platform includes a clamping and stretching device, an impact test device, a tear test device and a test bench control system, and the technical points are: the clamping and stretching device including a frame, impact clamping oil cylinders I, II and a tear clamping oil cylinder I vertically mounted on the frame, a tension fixing frame, a tension oil cylinder, a tension bracket and a tear clamping oil cylinder II, wherein the bottom of the tension bracket is provided with a pulley structure and is limited on a guide rail; the impact test device including a heavy hammer guide rail, a heavy hammer, a counterweight block, a sprocket guide rail, a height-adjusting sprocket, a lifting and direction-changing sprocket, an electric motor, a heavy hammer lifting rod and a fixed sprocket, wherein the rotary shaft connecting line of the direction-changing sprocket and the height- adjusting sprocket has a certain inclination with the vertical; and the tear test device including a tension bracket, tear power oil cylinders I and II, a tear trolley, a tear cutter assembly, a clamping plate and a buffer device.
Description
CONVEYOR BELT COMPREHENSIVE PERFORMANCE PARAMETER LUS01524
[01] The present invention relates to an experimental equipment, in particular to a performance test equipment for a mining conveyor belt, and in particular to a comprehensive performance parameters experiment platform for a mining conveyor belt, which is mainly suitable for detecting the tension fatigue test of the end of the conveyor belt, and the impact resistance test and the tear resistance test of the belt.
[02] The mining rubber conveyor belt is a carrier for conveying bulk materials such as ore, coal and cement. It has the characteristics of continuous and efficient, and is widely used in mines, port terminals, metallurgy, energy and chemical industries, and its length can reach several tens of kilometers. However, the conveyor belt tends to break when large ores or rebar with spikes are entrained in the material. Due to the high speed of movement (7-8 meters per second), the break length is up to tens of meters even if the machine is stopped immediately. And if not found in time, it is possible to reach tens of meters. However, the economic losses caused by production stoppages are substantial.
[03] Many domestic conveyor belt manufacturers are faced with the need to test their production of conveyor belt whether to meet the performance indexes of mining conveyor belt, and the existing conveyor belt performance test bench on the market has the following defects: 1) The test index is single, which can only realize the test of single parameter; 2) The filling and recycling of belt sample need to be done manually, so the automation of filling and recycling cannot be realized. 3) When the existing conveyor belt impact resistance test bench is working, the lifting and falling of the heavy hammer need to be operated manually, which is time-consuming and laborious. 4) The lifting height of the heavy hammer needs to be adjusted manually, which can not achieve automation and has low precision. 5) The existing conveyor belt tear resistance test bench moves with a sliding guide, which has large friction resistance and energy loss. 6) The above-mentioned series of problems result in that the working efficiency of the test bench for impact test and tear test is not high, and a large amount of manpower is required, and the above-mentioned are all practical problems that need to be solved urgently in the art.
[04] In order to overcome the problems of single test parameter, large consumption of manpower, poor precision control and large energy consumption of the conveyor belt test bench, the present invention provides a comprehensive performance parameters experiment platform for a mining conveyor belt with a compact and simple structure, various test parameters, a high degree of automation, a high precision and a high energy utilization rate.
[05] The technical solution used in the present invention to solve the above- 1 mentioned technical problem is that the comprehensive performance parameters LU501524 experiment platform for a mining conveyor belt includes a clamping and stretching device, an impact test device, a tear test device and a test bench control system, and the technical points are: the clamping and stretching device including a frame, an impact clamping oil cylinder I, an impact clamping oil cylinder II and a tear clamping oil cylinder I vertically mounted on the frame, a tension fixing frame fixed on a horizontal plane, a tension oil cylinder hinged on the tension fixing frame, a tension bracket hinged on the output end of the tension oil cylinder, a tear clamping oil cylinder II vertically fixed on the tension bracket, and a pulley structure provided at the bottom of the tension bracket and limited on a guide rail;
[06] the impact test device including a heavy hammer guide rail, a heavy hammer limited on the heavy hammer guide rail, a counterweight block assembled on the heavy hammer, a sprocket guide rail, a height-adjusting sprocket, a lifting and direction- changing sprocket, an electric motor, a heavy hammer lifting rod and a fixed sprocket, and the rotary shaft connecting line of the direction-changing sprocket and the height- adjusting sprocket having a certain inclination with the vertical; and
[07] the tear test device including a tension bracket, a tear power oil cylinder I horizontally mounted on the tension bracket, a tear power oil cylinder II, a tear trolley mounted on the output end of the tear power oil cylinder I, a tear cutter assembly mounted on the tear trolley, a clamping plate located at the output ends of the tear clamping oil cylinder I and the tear clamping oil cylinder II, and a buffer device located between the frame and the tear trolley.
[08] A scale is mounted on the sprocket guide rail.
[09] The counterweight block is a weight.
[10] Advantageous effects of the present invention are as follows: the belt sample can be clamped by two sets of clamping devices, which can be used for the preparation of impact test and tear test respectively; through the improved chain cam mechanism, the automatic lifting function of the heavy hammer is realized; the height of the heavy hammer can be adjusted by automatic height-adjusting scale device; the friction force and energy consumption can be reduced by replacing the sliding rail with a roller trolley; and finally, the automatic filling device can improve the working efficiency of the test bench and reduce waste of human resources, and can achieve automatic filling and recycling of conveyor belts, reduce the energy consumption of the experiment platform, to achieve a higher degree of automation and more green environmental protection.
[11] FIG. 1 is a schematic front view of the present invention;
[12] FIG. 2 is a schematic top view of the present invention;
[13] FIG. 3 is a schematic structural front view of the automatic filling device of the present invention;
[14] FIG. 4 is a schematic structural side view of the automatic filling device of the present invention;
[15] FIG. 5 is a schematic structural top view of an automatic filling device of the 2 present invention; and LU501524
[16] FIG. 6 is a block diagram of the operation of the control system of the present invention.
[17] Description of Reference Numerals: 1 (Conveyor belt) belt sample, 2 impact clamping oil cylinder I, 3 counterweight block, 4 heavy hammer, 5 frame, 6 fixed sprocket, 7 heavy hammer guide rail, 8 height-adjusting sprocket, 9 sprocket guide rail, direction-changing sprocket, 11 electric motor, 12 heavy hammer lifting rod, 13 impact clamping oil cylinder II, 14 tear clamping oil cylinder I, 15 clamping plate, 16 tear trolley, 17 tear cutter assembly, 18 tear power oil cylinder I, 19 tear clamping oil cylinder II,
[18] 20 tear power oil cylinder II, 21 tension bracket, 22 tension oil cylinder, 23 tension fixing bracket, 24 recycling device, 25 buffer device, 26 automatic filling device, 27 belt sample container, 28 spring, 29 belt sample filling guide rail, 30 spring compression lock, 31 filling bracket, 32 filling hydraulic cylinder, 33 filling guide rail.
[19] In order that those skilled in the art may better understand the technical scheme of the present invention, a more particular description of the present invention will be rendered by reference to specific embodiments thereof which are illustrated in the attached drawings.
[20] The tension and clamping test, impact test and tear test can be realized by clamping and stretching device, impact test device and tear device. The test bench is operated by the control system. In order to facilitate the batch operation, an automatic filling device is also provided.
[21] 1. Tension fatigue test: the structure of the clamping and stretching device is as shown in FIGs. 1 and 2, including an impact clamping oil cylinder I 2, an impact clamping oil cylinder II 13, and a tear clamping oil cylinder I 14 which are vertically mounted on the frame 5 for clamping, a tension fixing frame 23 which is fixed on the horizontal plane and is located at the other end of the frame 5, a tension oil cylinder 22 hinged on the tension fixing frame 23, a tension bracket 21 hinged on the output end of the tension oil cylinder 22, a tear clamping oil cylinder II 19 which is vertically fixed on the tension bracket 21, wherein the bottom of the tension bracket 21 is provided with a pulley structure and is limited on the guide rail, ensuring the tension bracket 21 can move stably in the horizontal direction.
[22] Experimental procedure: the automatic filling device 26 feeds the conveyor belt sample 1 (hereinafter referred to as "belt sample") into a test bench, and an impact clamping oil cylinder I 2 clamps one end of the belt sample, a tear clamping oil cylinder IT 19 clamps the other end of the conveyor belt, and the fatigue strength of the joint of the belt sample is tested by the tension of a tension oil cylinder 22.
[23] Part of the structure of the clamping and stretching device is common to both the impact test device and the tear device, which simplifies the structure of the test bench and realizes the multi-purpose of one machine. The tension oil cylinder 22 drives the tension bracket 21 to move outwards to tension the belt sample, and after the tension force reaches the experimental requirements, the impact clamping oil cylinder II 13 3 fixes and clamps the belt sample so as to meet the heavy hammer impact experimental LU501524 conditions; after the impact clamping oil cylinder II 13 is clamped, the tear clamping oil cylinder 114 is clamped, then the tension oil cylinder 22 drives the tension bracket 21 to move inwards to reduce the tension force on the belt sample, the clamping tension oil cylinder 22 drives the tension bracket 21 outwards to tension the right half of the belt sample again, and the tension ends when the test requirements are met, so as to meet the clamping and tension conditions of the tear test.
[24] The structure of the automatic filling device 26 is as shown in FIGs. 3-5. The automatic filling device 26 includes a belt sample container 27, a filling bracket 31 mounted on the belt sample container 27, a spring 28 mounted in the belt sample container 27, a spring compression lock 30 for controlling the compression degree of the spring 28, a filling guide rail 33 horizontally arranged on the filling bracket 31, a filling hydraulic cylinder 32 horizontally fixed on the filling bracket 31, belt sample filling mechanism 29 and the like limited on the guide rail and mounted on the output end of the filling hydraulic cylinder 32, and a through groove is provided on the side wall of the belt sample container 27. After the spring compression lock 30 is pressed to the lowest position and locked, the belt sample is loaded into the belt sample container
27. The belt sample is pushed into the test bench through the through groove along the filling guide rail 33 under the driving of the filling hydraulic cylinder 32.
[25] 2. Impact test: the structure of the impact test device is as shown in FIG. 1, including a heavy hammer guide rail 7, a heavy hammer 4 limited on the heavy hammer guide rail 7, a counterweight block 3 (such as a weight) assembled on the heavy hammer 4, a sprocket guide rail 9, a height-adjusting sprocket 8, a lifting and direction- changing sprocket 10 for lifting and lowering, an electric motor 11, a heavy hammer lifting rod 12 and a fixed sprocket 6, etc. A scale is assembled on the sprocket guide rail 9, the height of the height-adjusting sprocket 8 can be accurately adjusted, and the rotary shaft connecting line of the direction-changing sprocket 10 and the height- adjusting sprocket 8 has a certain inclination with the vertical, therefore, the falling height of the heavy hammer can be indirectly adjusted by adjusting the height of the height-adjusting sprocket 8 to meet experimental requirements. The heavy hammer guide rail 7 can effectively prevent the heavy hammer 4 from falling off during the impact test; the counterweight block 3 can increase the weight of the heavy hammer so as to increase the impact energy; the heavy hammer 4 can be replaced with a different shape so as to detect the bearing capacity of the belt sample to the impact of the hammer heads with different shapes, and the heavy hammer lifting rod 12 provides the power for lifting the heavy hammer.
[26] Impact test procedure: start the electric motor 11, and sequentially drive the direction-changing sprocket 10, the height-adjusting sprocket 8 and the fixed sprocket 6 to run in a clockwise direction (in FIG. 1); the heavy hammer lifting rod 12 fixed on the chain and driven by the electric motor 11 lift the heavy hammer 4 with the counterweight block 3 upward along the heavy hammer guide rail 7; with the movement of the heavy hammer lifting rod 12, the heavy hammer 4 is gradually lifted within a certain range; when the heavy hammer lifting rod 12 crosses the horizontal line where the height-adjusting sprocket 8 is located, it gradually separates from the heavy hammer 4
4 until the heavy hammer 4 is completely separated and falls freely along the heavy LU501524 hammer guide rail 7, that is, the impact test process is completed. The heavy hammer lifting rod 12 can be provided in a plurality, 1. e., a plurality of impact tests can be performed per unit time.
[27] 3. Tear Test: the structure of the tear test device is as shown in FIGs. 1 and 2, which includes a tension bracket 21, a tear power cylinder 118 horizontally mounted on the tension bracket 21, a tear power cylinder II 20, a tear trolley 16 mounted on the output end of the tear power oil cylinder I18, a tear knife assembly 17 mounted on the tear trolley 16, a clamping plate 15 located at the output ends of the tear clamping oil cylinder I 14 and the tear clamping oil cylinder II 19, a buffer device 25 located between the frame and the tear trolley 16, etc. Since the tear trolley 16 moves at a relatively fast speed, a buffer device 25 is provided at the end of the movement of the tear trolley, so as to prevent the test bench from being damaged. The clamping plate 15 ensures the uniform clamping force of the tear test, and at the same time provides a pulley guide rail for the tear trolley 16, thus simplifying the overall structure of the test bench. After the tear test, the belt samples will be collected by the recycling device 24 and uniformly processed.
[28] Working principle: make a slit at one end of the belt sample, insert the tear cutter assembly 17 into the slit, and drive the tear trolley 16 through the synchronous protrusive action of the tear power oil cylinder I 18 and the tear power oil cylinder II 20, so that the blade cuts the belt sample. The tear cutter assembly 17 includes a sensor, which can measure and record the load, displacement and time of the blade during the tear process, and draw a load-displacement-time curve. This curve is very important for researching the production of tear resistant conveyor belts.
[29] 4. Test bench control system: the working principle of the test bench control system is shown in FIG. 6, which includes data acquisition system, hydraulic control system, etc. The data acquisition system includes oil pressure sensors respectively provided on each oil cylinder, pressure sensors respectively mounted on the frame and located at the bottom of the belt sample, an impact force sensor mounted on the heavy hammer, and a tension force sensor mounted on the tension oil cylinder, wherein the signals of each sensor are connected to a PC via the data acquisition system by an OPC protocol, and the acquired data can also be presented on a smart phone or a portable terminal of a tablet computer via Ethernet for the purpose of real-time monitoring. The hydraulic control system provides the working power for the operation of the whole test bench. The oil temperature and pressure sensor and the pressure flow sensor are installed in the hydraulic system circuit to monitor the working condition of the hydraulic system in real time, which provides the security for the normal operation of the hydraulic control system. The system also has a touch screen and on-site buttons to control the test bench on-site, and the system control system panel is also installed with a working condition indicator light to prompt the system working condition in real time.
Claims (1)
1. A comprehensive performance parameters experiment platform for a mining conveyor belt, comprising a clamping and stretching device, an impact test device, a tear test device, a belt sample filling device and a test bench control system, wherein the clamping and stretching device comprises a frame, an impact clamping oil cylinder I, an impact clamping oil cylinder II and a tear clamping oil cylinder I vertically mounted on the frame, a tension fixing frame fixed on a horizontal plane, a tension oil cylinder hinged on the tension fixing frame, a tension bracket hinged on an output end of the tension oil cylinder, and a tear clamping oil cylinder II vertically fixed on the tension bracket; and the tear test device comprises a tear power oil cylinder I and a tear power oil cylinder II which are horizontally mounted on the tension bracket, characterized in that the bottom of the tension bracket is provided with a pulley structure and is limited on the guide rail; the impact test device comprises a heavy hammer guide rail, a heavy hammer limited on the heavy hammer guide rail, a counterweight block assembled on the heavy hammer, a sprocket guide rail and an electric motor fixed on the frame, a fixed sprocket fixed on the bottom of the sprocket guide rail, a height-adjusting sprocket slidably arranged on the sprocket guide rail and a lifting and direction-changing sprocket arranged on the output end of the electric motor, wherein the rotary shaft connecting line of the lifting and direction-changing sprocket and the height-adjusting sprocket has a certain inclination with the vertical, and the lifting and direction-changing sprocket, the height-adjusting sprocket and the fixed sprocket are connected via a chain, and a heavy hammer lifting rod is arranged on the chain; the tear test device further comprises a tear trolley mounted on the output end of the tear power oil cylinder I, a tear cutter assembly mounted on the tear trolley, a clamping plate located at the output ends of the tear clamping oil cylinder I and the tear clamping oil cylinder IL, and a buffer device located between the frame and the tear trolley; and the belt sample filling device comprises a belt sample container, a filling bracket mounted on the belt sample container, a spring mounted in the belt sample container, a spring compression lock for controlling the compression degree of the spring, a filling guide rail horizontally arranged on the filling bracket, a filling hydraulic cylinder horizontally fixed on the filling bracket, and a belt sample filling mechanism mounted on the guide rail and assembled at the output end of the filling hydraulic cylinder.
1
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501524A LU501524B1 (en) | 2022-02-18 | 2022-02-18 | Conveyor belt comprehensive performance parameter test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU501524A LU501524B1 (en) | 2022-02-18 | 2022-02-18 | Conveyor belt comprehensive performance parameter test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU501524B1 true LU501524B1 (en) | 2022-08-18 |
Family
ID=82848816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU501524A LU501524B1 (en) | 2022-02-18 | 2022-02-18 | Conveyor belt comprehensive performance parameter test device |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU501524B1 (en) |
-
2022
- 2022-02-18 LU LU501524A patent/LU501524B1/en active IP Right Grant
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| Date | Code | Title | Description |
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| FG | Patent granted |
Effective date: 20220818 |