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CN-116620781-B - Test device and method for monitoring belt running of belt conveyor

CN116620781BCN 116620781 BCN116620781 BCN 116620781BCN-116620781-B

Abstract

The invention discloses a test device and a method for monitoring belt running of a belt conveyor, and relates to the field of belt conveyors, wherein the test device comprises a tester frame, a driving assembly, a lifting assembly and an array sensor group; the tester comprises a tester frame, a driving assembly, a lifting assembly, an array sensor group, a plurality of sensors, a plurality of ejector pins, a sensor, a sliding sleeve and a sensor, wherein the belt is fixed in the tester frame through a belt tensioning part, the driving assembly is arranged below the belt, the lifting assembly is fixedly connected to the top surface of a driving block in the driving assembly, the array sensor group comprises a double-layer frame, the sensors, the sliding sleeve and the ejector pins are fixed on the lower plate surface of the double-layer frame, the sliding sleeve corresponds to the sensors one by one and is fixed on the upper plate surface of the double-layer frame, the ejector pins are connected to the inner side of the sliding sleeve in a sliding manner, the top ends of the ejector pins are exposed out of the top ends of the sliding sleeve, and the bottom ends of the ejector pins penetrate through the bottom ends of the sliding sleeve and the upper plate surface of the sliding sleeve and are in butt joint with sensing heads of the sensors. The invention realizes accurate, reliable, fast and convenient monitoring of the belt conveyor through the signal receiving and transmitting of the array sensor group.

Inventors

  • CUI YOU
  • QIAO LEI
  • JIA ZHINING

Assignees

  • 承德石油高等专科学校

Dates

Publication Date
20260512
Application Date
20230512

Claims (6)

  1. 1. A test device for monitoring belt conveyor belt operation, characterized by, include: The testing machine comprises a testing machine frame (1), wherein one end of the testing machine frame (1) is provided with a belt fixing part, and one end of the testing machine frame (1) far away from the belt fixing part is provided with a belt tensioning part (2), an inner supporting frame (7) is fixed inside the testing machine frame (1), and the belt tensioning part (2) is arranged between the inner supporting frame (7) and one end of the testing machine frame (1) far away from the belt fixing part; The belt tensioning part (2) comprises a plurality of sliding rods (21), sliding pieces (22), clamping pieces (23), a pull rod (24) and adjusting nuts (25), wherein one end of each sliding rod (21) is fixedly connected with the inner supporting frame (7), the other end of each sliding rod (21) is far away from the corresponding testing machine frame (1), the sliding pieces (22) are slidably connected onto the sliding rods (21), the clamping pieces (23) are fixedly connected onto the top surfaces of the sliding pieces (22), clamping gaps are reserved between the clamping pieces (23) and the sliding pieces (22), one end of each pull rod (24) is fixedly connected with the corresponding sliding piece (22), the other end of each pull rod (24) is slidably connected with one end of the corresponding testing machine frame (1) far away from the corresponding belt fixing part, threads are arranged on one end of each pull rod (24) far away from the corresponding sliding piece (22), and the adjusting nuts (25) are in threaded connection with the corresponding tapping nuts (24); The driving assembly (3) is fixedly connected to a cross beam at the bottom of the tester frame (1), the driving assembly (3) is arranged below a test space between the belt fixing part and the belt stretching part, and the driving assembly (3) comprises a driving block (4) capable of linearly and reciprocally moving; The lifting assembly (5) is fixedly connected to the top surface of the driving block (4); The sensor group (6) comprises a double-layer frame (61), sensors (62), sliding sleeves (63) and ejector pins (64), wherein the double-layer frame (61) is fixed on the top surface of the lifting assembly (5), the number of the sensors (62) is multiple, the sensors (62) are fixed on the lower layer plate surface of the double-layer frame (61), the number of the sliding sleeves (63) is the same as that of the sensors (62), the sliding sleeves are in one-to-one correspondence with the sensors (62) and are fixed on the upper layer plate surface of the double-layer frame (61), the ejector pins (64) are connected to the inner side of the sliding sleeves (63) in a sliding mode, the top ends of the ejector pins (64) are exposed out of the top ends of the sliding sleeves (63), and the bottom ends of the ejector pins (64) penetrate through the bottom ends of the sliding sleeves (63) and the upper layer plate surface and are abutted against sensing heads of the sensors (62).
  2. 2. The test device for monitoring belt operation of a belt conveyor according to claim 1, wherein the sliding sleeve (63) comprises a bearing seat (631) and a linear bearing (632), the bearing seat (631) is fixedly arranged on the top surface of the upper plate surface, the bearing seat (631) is of an axle center hollow cylinder structure, the thimble (64) is slidingly connected in the hollow cylinder structure of the bearing seat (631), and the linear bearing (632) is coaxially sleeved in the bearing seat (631) and is in transition fit with the bearing seat (631).
  3. 3. The test device for monitoring belt running of a belt conveyor according to claim 1, wherein the driving assembly (3) comprises a base (31), a stepping motor (32), a lead screw (33) and a driving block (4), the base (31) is a U-shaped frame with an upward opening, the base (31) is fixedly arranged on a cross beam at the bottom of the test machine frame (1), a guide rail chute is formed in the bottom plate of the base (31), the stepping motor (32) is fixedly arranged on the side wall of the base (31), one end of the lead screw (33) is fixedly connected with a power output shaft of the stepping motor (32), the other end of the lead screw (33) is rotatably connected with one end, far away from the stepping motor (32), of the base (31), and the driving block (4) is slidably connected with the guide rail chute and is in threaded connection with the lead screw (33).
  4. 4. The test device for monitoring belt running of the belt conveyor according to claim 1, wherein the lifting assembly (5) comprises a mounting bracket (51), a lifting plate (52), a first fastening screw (53) and a second fastening screw (54), the mounting bracket (51) is fixedly connected to the driving block (4), a threaded hole is formed in the top surface of the mounting bracket (51), the lifting plate (52) is sleeved on the outer side of the mounting bracket (51), an adjusting groove (55) is vertically formed in the side wall of the lifting plate (52), the first fastening screw (53) penetrates through the threaded hole and abuts against the lifting plate (52), and the second fastening screw (54) is slidably connected in the adjusting groove (55) and abuts against the outer side wall of the bracket.
  5. 5. A test device for monitoring belt operation of a belt conveyor according to claim 1, characterized in that the output of the sensor (62) is electrically connected to a data analysis component (8).
  6. 6. A test method using the test device for monitoring belt operation of a belt conveyor according to any one of claims 1 to 5, characterized in that: step one, adjusting the belt tensioning part (2) to enable the belt to be in a tensioning state; Firstly, tightly propping the sensor (62) below the belt by adjusting the lifting assembly (5), and then continuously adjusting the lifting assembly (5) to lock and fix the position of the sensor (62); Starting the driving assembly (3), and driving the array sensor group (6) to do reciprocating motion through the driving assembly (3); And fourthly, analyzing the electric signals of the sensors (62), wherein if one of the sensors (62) at the outermost side has long-time pressure drop, the system is determined to be a phenomenon of slipping at the corresponding position of the belt, if one of the sensors (62) at the outermost side has short-time pressure drop, the system is determined to be a phenomenon of local tearing at the corresponding position of the belt, if one or more of the sensors (62) at the middle has pressure drop, the system is determined to be a phenomenon of local tearing at the corresponding position of the belt, and if all the sensors (62) have pressure drop, the system is determined to be a phenomenon of breaking at the corresponding position of the belt.

Description

Test device and method for monitoring belt running of belt conveyor Technical Field The invention relates to the field of belt operation monitoring of belt conveyors, in particular to a test device and a test method for monitoring belt operation of a belt conveyor. Background At present, the belt operation monitoring means of the mining conveyor is single, such as monitoring belt slip, belt tearing, belt breakage and the like, special equipment (independent of a belt conveying system) is required to be provided, so that the cost and additional maintenance cost are increased for the whole conveying system, and various fault monitoring means have different degrees of defects. The X-ray projection technology is mature in development, can project and image an interlayer and a steel wire in the belt, can timely find whether the inner structure of the belt is broken, has the advantages of high equipment cost, large occupied area, strict requirements on the moving speed of a detected object, poor environmental adaptability and high maintenance cost, and can monitor whether the metal steel wire in the belt is broken by adopting an electromagnetic method, but has larger error when the metal steel wire is detected by adopting the method because the metal steel wire is clamped in the middle of a rubber layer. None of the above methods are suitable for mining machinery use scenarios. Therefore, how to provide a belt monitoring device capable of accurately, reliably, quickly and conveniently carrying out belt monitoring on a mining long-distance conveyor on the premise of not affecting the transportation function of the whole conveyor and a test method thereof are problems to be solved by those skilled in the art. Disclosure of Invention In view of the above, the present invention provides a test device and a method for monitoring belt operation of a belt conveyor, which aims to solve the above technical problems. In order to achieve the above purpose, the present invention adopts the following technical scheme: The invention discloses a test device for monitoring belt running of a belt conveyor, which comprises a tester frame, a driving assembly, a lifting assembly and an array sensor group, wherein the driving assembly is arranged on the tester frame; The testing machine comprises a testing machine frame, a driving assembly, a lifting assembly, an array sensor group, a sensor, a thimble and a sensor, wherein one end of the testing machine frame is provided with a belt fixing part, one end of the testing machine frame, which is far away from the belt fixing part, is provided with a belt tensioning part, the driving assembly is fixedly connected to a cross beam at the bottom of the testing machine frame, the driving assembly is arranged below a test space between the belt fixing part and the belt tensioning part, the driving assembly comprises a driving block capable of linearly and reciprocally moving, the lifting assembly is fixedly connected to the top surface of the driving block, the array sensor group comprises a double-layer frame, the sensor, the sliding sleeve and the thimble, the double-layer frame is fixed to the top surface of the lifting assembly, the sensor is multiple, the sensors are fixed to the lower-layer plate surface of the double-layer frame, the sliding sleeve is the same as the sensors, corresponds to the sensors one by one, and is fixed to the upper-layer plate surface of the double-layer frame, the thimble is slidably connected to the inner side of the sliding sleeve, the top end of the thimble is exposed to the top end of the sliding sleeve, and the bottom end of the thimble penetrates through the bottom end of the sliding sleeve and the upper-layer plate surface and abuts against the sensor. Compared with the prior art, the invention discloses a test device for monitoring the belt operation of a belt conveyor, wherein in the use process of the test device, the belt tensioning part is required to be driven to keep the belt in a tensioned state, then the distance between the sensor and the belt is adjusted by fixing the array sensor group on the lifting assembly, so that the distance is kept at a reasonable distance, the thimble is tightly pressed at the top end of the sensor by the belt in the test process, the sensing sensitivity of the sensor is improved in a direct contact manner, the driving assembly is used for realizing the transmission of a simulated belt, in the conventional belt monitoring test process, equipment and test cost required by controlling the transmission of the belt are high, and the driving device is used for driving the array sensor group to reciprocate at the bottom of the belt, so that the sensor can meet the requirement of monitoring the operation state of the belt. Preferably, in a test apparatus for monitoring belt operation of a belt conveyor, an inner support frame is fixed inside the tester frame, the belt tensioning portion is mounted between the inner support