Dynamic load testing machine for carrier roller of belt conveyor

Abstract

The invention discloses a dynamic load testing machine for a carrier roller of a belt conveyor, which relates to the technical field of carrier roller testing equipment and comprises an experiment table, two carrier roller mounting racks are mounted on the experiment table, a carrier roller to be tested is jointly mounted between the two carrier roller mounting racks, and a roller rack distance regulator is arranged between the carrier roller mounting racks and the experiment table; a pressure seat which is arranged in a swinging mode is installed on the lower portion of the experiment table, a driving roller is rotationally installed on the pressure seat, a tension belt is installed between the driving roller and the carrier roller to be tested, a driving motor is arranged between the driving roller and the pressure seat, and the pressure seat is connected with a pressure applying mechanism used for tensioning the tension belt. A driving position regulator is arranged between the pressure seat and the experiment table; a supporting structure is fixedly arranged on the lower portion of the experiment table, and a dip angle fixator is arranged between the supporting structure and the experiment table. The simple structure is used for simulating the use condition of the carrier roller for experiment, it is ensured that the carrier roller better adapts to the load condition in the actual use process, and reliable operation is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of roller testing equipment, and in particular to a belt conveyor roller dynamic load testing machine. Background Art

[0002] Rollers are important components of belt conveyors, used to support the conveyor belt and ensure its smooth operation. Their quality directly affects the operation effect and service life of the belt conveyor. Therefore, rollers must undergo strict testing after manufacturing before they can be used. The inspection of rollers includes many items such as appearance, size, mechanics, rotation, dynamic balance, etc., but the current inspection equipment mainly conducts theoretical verification through inspection means. This verification result can only show one-sidedly whether certain parameters of the rollers meet the requirements, and it cannot guarantee whether they can maintain reliable operation for a long time at the work site in the later stage. Among them, the load conditions of the rollers at the work site will be significantly different, especially for trough belt conveyors. The load conditions of the rollers, especially the load conditions of the tilted rollers, are more complicated. The current inspection equipment itself cannot perform corresponding inspections for its complex load conditions, so the failure rate of rollers due to differences in load conditions at the work site is high, which is also one of the main reasons for the frequent maintenance and replacement of belt conveyor rollers. Therefore, it is necessary to provide a means to promote the roller to better adapt to the load conditions and achieve reliable operation during actual use, so as to improve the above situation. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a belt conveyor roller dynamic load testing machine, which uses a simple structure to simulate the roller operating conditions for experiments, which is beneficial to ensure that the rollers can better adapt to the load conditions and achieve reliable operation during actual use.

[0004] In order to solve the above technical problems, the technical solution of the present invention is: a belt conveyor roller dynamic load testing machine, including a test bench, two roller mounting frames are installed on the test bench, the two roller mounting frames are used to jointly install the roller to be tested, and a roller frame spacing adjuster is provided between the roller mounting frames and the test bench; a pressure seat which is swingably arranged in a direction away from or close to the roller to be tested is installed at the lower part of the test bench, a driving roller is rotatably installed on the pressure seat, a tension belt is installed between the driving roller and the roller to be tested, a driving motor is provided between the driving roller and the pressure seat, the pressure seat is connected to a pressure mechanism for tensioning the tension belt, and a driving position adjuster is provided between the pressure seat and the test bench; a supporting structure is fixedly provided at the lower part of the test bench, and an inclination angle fixer is provided between the supporting structure and the test bench.

[0005] As a preferred technical solution, the test bench includes two oppositely arranged main beams, with end beams fixedly connected between corresponding ends of the two main beams, and the two roller mounting frames are installed on the two main beams, and the pressure seat is installed on one of the main beams.

[0006] As a preferred technical solution, the roller frame spacing adjuster includes spacing adjustment connecting holes arranged in sequence along the length direction on the main beam, and two spacing adjustment fixing holes are respectively provided on the roller mounting frame corresponding to each of the main beams, and spacing fixing bolts are respectively installed between the two spacing adjustment fixing holes and two of the spacing adjustment connecting holes on the corresponding main beams.

[0007] As a preferred technical solution, the drive position adjuster includes a drive mounting seat, on which the pressure seat is swingably mounted; the drive mounting seat is provided with two drive position fixing holes, and drive position fixing bolts are respectively installed between the two drive position fixing holes and two of the spacing adjustment connecting holes on the corresponding main beam.

[0008] As a preferred technical solution, the supporting structure includes a first leg obliquely fixed at one end of the main beam, and a second leg obliquely fixed at the other end of the main beam, the second leg is arranged parallel to the first leg, and the length of the second leg is greater than that of the first leg; the first leg and the second leg also serve as the inclination angle fixer.

[0009] As a preferred technical solution, the supporting structure includes a third leg fixedly installed at one end of the test bench, and a fourth leg fixedly installed at the other end of the test bench, the third leg and the fourth leg are vertically arranged, and the third leg and the fourth leg change the inclination angle of the roller to be tested when they are set to different lengths; the inclination angle fixer includes leg connecting plates fixedly installed at the upper ends of the third leg and the fourth leg, respectively, and leg fixing plates corresponding to the leg connecting plates are fixedly provided on the test bench, and leg fixing bolts are provided between the leg connecting plates and the corresponding leg fixing plates.

[0010] As a preferred technical solution, the driving roller includes a cylinder, and two belt limiting rings are fixedly provided on the outer circumferential surface of the cylinder, and the two belt limiting rings are used to limit the axial position of the tension belt on the cylinder.

[0011] As a preferred technical solution, the pressure mechanism includes an upper pressure connecting seat installed on the experimental table, a lower pressure connecting seat is installed on the free end of the pressure seat, and a pressure cylinder is hingedly installed between the lower pressure connecting seat and the upper pressure connecting seat.

[0012] As a preferred technical solution, a pressure detection structure is provided between the pressure-applying lower connecting seat and the pressure seat.

[0013] As a preferred technical solution, a protective structure located outside the roller to be tested is installed on the test bench.

[0014] Due to the adoption of the above technical solution, the present invention achieves the following beneficial effects: (1) The roller to be tested is installed by using the two roller mounting frames, and the swinging pressure seat is used to facilitate the installation of the tension belt between the roller to be tested and the driving roller. After installation, the pressure mechanism is used to drive the pressure seat away from the roller to be tested, and the tension belt is tightened to simulate the load condition and apply radial force to the roller to be tested. The support structure makes the roller to be tested in the inclination condition of actual use through the inclination angle fixer; the driving motor drives the driving roller to rotate, and the tension belt reaches the working speed. After the roller to be tested runs for a certain period of time under this simulated condition, it can be visually observed whether it is damaged, unqualified rollers are screened out, and qualified rollers are used for on-site installation and use, which is conducive to ensuring that the rollers can better adapt to the load condition and achieve reliable operation during actual use; (2) The spacing between the two roller mounting frames can be adjusted by the roller frame spacing adjuster to adapt to the installation of rollers to be tested of different lengths. The pressure seat can be adjusted by the drive position adjuster so that the tension belt can be located at the actual working position of the roller to be tested. The support structure can be rigidly fixed by the inclination fixer to change the inclination, thereby facilitating the adaptive use of rollers to be tested of various specifications. (3) The present invention has a simple structure, and there is no hinge, shaft hole or other matching connection as the whole. The operation is stable and reliable, and the shaking effect caused by the structural parts is eliminated, which promotes the accuracy of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention. Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment of the present invention; Figure 2 is a schematic diagram of a top view of the structure of an embodiment of the present invention; Figure 3 yes Figure 2 Schematic diagram of AA structure; Figure 4 2 is a schematic diagram of the use state of the roller to be tested when it is horizontal according to an embodiment of the present invention; Figure 5 2 is a schematic diagram of the use state of the test roller when it is tilted 20° according to an embodiment of the present invention; Figure 6It is a schematic diagram of the use state of the test roller when it is tilted 45 degrees according to the embodiment of the present invention.

[0016] In the figure: 1-laboratory table; 11-main beam; 12-end beam; 2-roller mounting frame; 21-roller frame spacing adjuster; 22-spacing adjustment connecting hole; 23-spacing adjustment fixing hole; 3-rollers to be tested; 4-pressure seat; 41-driving roller; 42-driving motor; 43-tension belt; 44-belt limiting ring; 45-driving position adjuster; 46-driving mounting seat; 47-driving position fixing hole; 5-pressure mechanism; 51-pressure upper connecting seat; 52-pressure lower connecting seat; 53-pressure cylinder; 54-pressure detection structure; 55-guide column; 56-guide through hole; 57-anti-slip limit step; 6-support structure; 61-first leg; 62-second leg; 63-third leg; 64-fourth leg; 7-tilt angle fixer; 71-leg connecting plate; 72-leg fixing plate. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0018] like Figures 1 to 6 As shown together, the belt conveyor roller dynamic load tester includes a test bench 1, on which two roller mounting frames 2 are installed, and between the two roller mounting frames 2 is used to jointly install the roller 3 to be tested, and a roller frame spacing adjuster 21 is provided between the roller mounting frames 2 and the test bench 1. Through the two roller mounting frames 2 with adjustable spacing, the present embodiment can adapt to the use of rollers 3 to be tested of different length specifications.

[0019] The test bench 1 of this embodiment includes two oppositely arranged main beams 11, and an end beam 12 is fixedly connected between the corresponding ends of the two main beams 11, so that the test bench 1 forms a rectangular frame structure; the two roller mounting frames 2 are installed on the two main beams 11. The roller mounting frames 2 can be set with reference to the roller frame on the belt conveyor to set the disassembly and assembly connection structure of the roller 3 to be tested, which is easily obtained by those skilled in the art based on the prior art and will not be repeated here.

[0020] The roller frame spacing adjuster 21 includes spacing adjustment connecting holes 22 sequentially arranged along the length direction on the main beam 11, and two spacing adjustment fixing holes 23 are respectively arranged on the roller mounting frame 2 corresponding to each main beam 11, and spacing fixing bolts are respectively installed between the two spacing adjustment fixing holes 23 and two of the spacing adjustment connecting holes 22 on the corresponding main beam 11. The spacing fixing bolts are installed between the two spacing adjustment fixing holes 23 and two different spacing adjustment connecting holes 22, so as to achieve the purpose of adjusting the spacing between the two roller mounting frames 2.

[0021] Preferably, the spacing adjustment fixing hole 23 is a long hole arranged along the length direction of the main beam 11. The connection between the spacing adjustment fixing hole 23 and the different spacing adjustment connecting holes 22 is step-by-step adjustment. By setting the spacing adjustment fixing hole 23 as a long hole, the spacing adjustment connecting holes 22 connected thereto can be further steplessly adjusted to better adapt to the use of rollers 3 to be tested of different lengths.

[0022] The lower part of the test bench 1 is provided with a pressure seat 4 which is swingably arranged in a direction away from or close to the roller 3 to be tested. For the structure of the test bench 1 described in this embodiment, the pressure seat 4 is installed on one of the main beams 11. A driving roller 41 is rotatably installed on the pressure seat 4, a tension belt 43 is installed between the driving roller 41 and the roller 3 to be tested, a driving motor 42 is provided between the driving roller 41 and the pressure seat 4, and a pressure mechanism 5 for tensioning the tension belt 43 is connected to the pressure seat 4.

[0023] When in use, the tension belt 43 is sleeved between the roller 3 to be tested and the driving roller 41, and the roller 3 to be tested is installed on the two roller mounting frames 2. The pressure mechanism 5 drives the pressure seat 4 to swing away from the roller 3 to be tested, and the tension belt 43 is tensioned to simulate the load condition and apply radial force to the roller 3 to be tested. The driving motor 42 drives the driving roller 41 to rotate, and the tension belt 43 reaches the operating speed of the working condition to test the roller 3 to be tested under load and speed conditions. In actual use, the tension belts 43 of various widths and the driving rollers 41 of various lengths can be configured to adapt to the rollers 3 to be tested of different lengths for use.

[0024] Preferably, the driving roller 41 includes a cylinder, and two belt limiting rings 44 are fixedly provided on the outer circumferential surface of the cylinder, and the two belt limiting rings 44 are used to limit the axial position of the tension belt 43 on the cylinder. In this way, the tension belt 43 is prevented from deviating, and the tension belt 43 is ensured to be maintained at a specified position on the roller surface of the roller 3 to be tested, which is conducive to promoting accurate experimental results. In practical applications, position sensors can be respectively provided at the two edges of the tension belt 43 at the roller 3 to be tested, and the deviation of the tension belt 43 can be detected in real time. Once the deviation of the tension belt 43 is detected, the driving motor 42 is stopped; this detection and control means is easily obtained by those skilled in the art in combination with conventional technical means, and will not be repeated here.

[0025] Preferably, the pressure mechanism 5 includes an upper pressure connecting seat 51 installed on the experimental bench 1, a lower pressure connecting seat 52 is installed on the free end of the pressure seat 4, a pressure cylinder 53 is hingedly installed between the lower pressure connecting seat 52 and the upper pressure connecting seat 51, and the pressure cylinder 53 provides pressure for tightening the tension belt 43.

[0026] Preferably, a pressure detection structure 54 is provided between the pressure-applying lower connecting seat 52 and the pressure seat 4, and the pressure applied by the pressure-applying mechanism 5 is detected by the pressure detection structure 54, thereby indirectly reflecting the tension of the tension belt 43; the pressure detection structure 54 can be implemented by a pressure sensor or the like.

[0027] More specifically, at least three guide columns 55 are fixedly provided at the free end of the pressure seat 4, and the pressure-applying lower connecting seat 52 is slidably installed on the guide columns 55. The pressure detecting structure 54 is installed between the pressure-applying lower connecting seat 52 and the pressure seat 4. The pressure-applying lower connecting seat 52 is provided with guide through holes 56 corresponding to the three guide columns 55 respectively, and each guide column 55 is provided with an anti-slip limit step 57 on the end of the guide through hole 56 away from the pressure seat 4. Therefore, when the pressure cylinder 53 contracts, it can rely on the anti-slip limit step 57 and the guide column 55 to drive the pressure seat 4 to swing towards the roller 3 to be tested, and the tension belt 43 is loosened, which is convenient for replacing the roller 3 to be tested; after replacement, the pressure cylinder 53 extends out, and the pressure seat 4 swings away from the roller 3 to be tested under the driving force and its own weight, and the tension belt 43 is gradually tightened. Under the reverse pulling of the tension belt 43 and the pressure of the pressure cylinder 53, the pressure detection structure 54 detects the pressure value of the pressure, and obtains the approximate value of the tension at the tension belt 43 through torque conversion. This approximate value is equivalent to the value of the radial force applied by the tension belt 43 to the roller 3 to be tested, that is, the value of the load borne by the roller 3 to be tested. Therefore, the pressure detection structure 54 feeds back whether the load at the roller 3 to be tested meets the working condition requirements.

[0028] A driving position regulator 45 is provided between the pressure seat 4 and the experimental table 1. By adjusting the position of the pressure seat 4 through the driving position regulator 45, the rollers 3 to be tested of different lengths can be adapted, so that the tension belt 43 is always in the specified position of the roller 3 to be tested for testing. The driving position regulator 45 of this embodiment includes a driving mounting seat 46, on which the pressure seat 4 is swingably mounted; the driving mounting seat 46 is provided with two driving position fixing holes 47, and driving position fixing bolts are respectively installed between the two driving position fixing holes 47 and the two spacing adjustment connecting holes 22 on the corresponding main beam 11. The driving position regulator 45 is also adjusted by bolting between two pairs of fixing holes and connecting holes; of course, based on the fact that the spacing adjustment fixing hole 23 is a long hole, the pressure seat 4 that has been fixed in position can be passively adjusted through the stepless adjustment of the long hole, so as to achieve the purpose of the tension belt 43 being in the specified position of the roller 3 to be tested.

[0029] In the case where the pressure seat 4 can be driven to adjust the position, the pressure mechanism 5 can also preferably be position-adjustable. The position adjustment can be set between the pressure upper connecting seat 51 and the other main beam 11, and can be set with reference to the connection method between the driving mounting seat 46 and the corresponding main beam 11. This can be easily derived by those skilled in the art in combination with the structural principle of the driving position adjuster 45, and will not be repeated here.

[0030] A support structure 6 is fixedly provided at the lower part of the test bench 1, and an inclination angle fixer 7 is provided between the support structure 6 and the test bench 1. The support structure 6 is fixed by the inclination angle fixer 7, so that the roller 3 to be tested is in an actual inclination working condition.

[0031] The support structure 6 of this embodiment includes a first leg 61 fixedly arranged obliquely at one end of the main beam 11, and a second leg 62 fixedly arranged obliquely at the other end of the main beam 11, the second leg 62 is arranged parallel to the first leg 61, and the length of the second leg 62 is greater than the first leg 61; the first leg 61 and the second leg 62 also serve as the inclination angle holder 7. That is, the first leg 61 and the second leg 62 provided on the test bench 1, through their length difference, enable the roller 3 to reach a larger inclination, such as 45°. Preferably, a reinforcing leg is provided between the first leg 61 and the second leg 62, thereby approximately forming a triangular frame structure, which has high structural strength and is conducive to promoting stable experiments.

[0032] In addition, the supporting structure 6 described in this embodiment includes a third leg 63 fixedly installed at one end of the experimental platform 1, and a fourth leg 64 fixedly installed at the other end of the experimental platform 1, the third leg 63 and the fourth leg 64 are vertically arranged, and the third leg 63 and the fourth leg 64 change the inclination angle of the roller 3 to be tested when they are set to different lengths; the inclination angle fixer 7 includes leg connecting plates 71 fixedly installed at the upper ends of the third leg 63 and the fourth leg 64, respectively, and leg fixing plates 72 corresponding to the leg connecting plates 71 are fixed on the experimental platform 1, and leg fixing bolts are provided between the leg connecting plates 71 and the corresponding leg fixing plates 72.

[0033] In actual application, the third leg 63 and the fourth leg 64 can be set in a variety of combinations, such as a combination of the same length, which can make the roller 3 to be tested in a horizontal state, that is, 0°; another example is a combination of a longer third leg 63 and a shorter fourth leg 64, which can make the roller 3 to be tested in a 20° tilted state; and when the third leg 63 is longer and the fourth leg 64 is shorter, the roller 3 to be tested is in a 30° tilted state, etc. In the case of setting a limited group of third legs 63 and fourth legs 64, in combination with the limit angles of the first leg 61 and the second leg 62, the experimental requirements of rollers with different installation conditions of tilt angles can be met; of course, when the actual tilt angle condition of the roller 3 to be tested is not exactly the tilt angle that can be achieved by a certain combination of the third leg 63 and the fourth leg 64, it is sufficient to select a group of the third leg 63 and the fourth leg 64 to achieve a tilt angle greater than the actual tilt angle of the roller 3 to be tested for experiment.

[0034] Through the structural principles of the above-mentioned various legs, the overall structure of this embodiment avoids hinges, shaft holes and other matching connections, runs stably and reliably during the experiment, eliminates the shaking influence caused by the structural parts, and promotes accurate experimental results.

[0035] Preferably, a protective structure is installed on the test bench 1 outside the roller 3 to be tested. Since each test of the roller 3 to be tested has a certain duration, the protection structure can improve the safety of the test process. The protection structure can be implemented by a mesh structure or a box-type structure with an observation window, which is not limited here.

[0036] In this embodiment, the two roller mounting frames 2 are used to install the roller 3 to be tested, and the swinging pressure seat 4 is used to facilitate the installation of the tension belt 43 between the roller 3 to be tested and the driving roller 41. After installation, the pressure mechanism 5 is used to drive the pressure seat 4 away from the roller 3 to be tested, and the tension belt 43 is tensioned to simulate the load condition and apply radial force to the roller 3 to be tested. The support structure 6 makes the roller 3 to be tested be in the inclination condition during actual use through the inclination angle fixer 7; the driving motor 42 drives the driving roller 41 to rotate, and the tension belt 43 reaches the working speed of the working condition. After the roller 3 to be tested has been running for a certain period of time under this simulated condition, it can be visually observed whether it is damaged, unqualified rollers are screened out, and qualified rollers are used for on-site installation and use, which is conducive to ensuring that the rollers can better adapt to the load condition and achieve reliable operation during actual use. The spacing between the two roller mounting frames 2 can be adjusted using the roller frame spacing adjuster 21 to accommodate the installation of rollers 3 to be tested of different lengths. The pressure seat 4 can be adjusted in position by the drive position adjuster 45 so that the tension belt 43 can be located at the actual working position of the roller 3 to be tested. The support structure 6 can be rigidly fixed by the inclination fixer 7 to change the inclination angle, thereby facilitating the adaptive use of rollers 3 to be tested of various specifications.

[0037] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. Belt conveyor roller dynamic load testing machine, characterized by: A test bench is included, wherein two roller mounting frames are installed on the test bench, and the roller to be tested is installed between the two roller mounting frames, and a roller frame spacing adjuster is provided between the roller mounting frames and the test bench; A pressure seat is installed at the lower part of the test bench so as to swing away from or approach the roller to be tested, a driving roller is rotatably installed on the pressure seat, a tension belt is installed between the driving roller and the roller to be tested, a driving motor is provided between the driving roller and the pressure seat, a pressure mechanism for tensioning the tension belt is connected to the pressure seat, and a driving position regulator is provided between the pressure seat and the test bench; A supporting structure is fixedly provided at the lower part of the experimental table, and an inclination angle fixer is provided between the supporting structure and the experimental table.

2. The belt conveyor roller dynamic load testing machine according to claim 1, characterized in that: The test bench comprises two main beams arranged opposite to each other, an end beam is fixedly connected between the corresponding ends of the two main beams, the two roller mounting frames are installed on the two main beams, and the pressure seat is installed on one of the main beams.

3. The belt conveyor roller dynamic load testing machine according to claim 2, characterized in that: The roller frame spacing adjuster includes spacing adjustment connecting holes arranged in sequence along the length direction on the main beam, and two spacing adjustment fixing holes are respectively provided on the roller mounting frame corresponding to each of the main beams, and spacing fixing bolts are respectively installed between the two spacing adjustment fixing holes and two of the spacing adjustment connecting holes on the corresponding main beam.

4. The belt conveyor roller dynamic load testing machine according to claim 3, characterized in that: The driving position regulator comprises a driving mounting seat, on which the pressure seat is swingably mounted; the driving mounting seat is provided with two driving position fixing holes, and driving position fixing bolts are respectively installed between the two driving position fixing holes and two of the spacing adjustment connecting holes on the corresponding main beam.

5. The belt conveyor roller dynamic load testing machine according to claim 2, characterized in that: The supporting structure includes a first leg obliquely fixed at one end of the main beam, and a second leg obliquely fixed at the other end of the main beam. The second leg is arranged parallel to the first leg, and the length of the second leg is greater than that of the first leg; the first leg and the second leg also serve as the inclination angle fixer.

6. The belt conveyor roller dynamic load testing machine according to claim 1, characterized in that: The supporting structure includes a third leg fixedly installed at one end of the experimental bench, and a fourth leg fixedly installed at the other end of the experimental bench, the third leg and the fourth leg are vertically arranged, and the third leg and the fourth leg change the inclination angle of the roller to be tested when they are set to different lengths; the inclination angle fixer includes leg connecting plates fixedly installed at the upper ends of the third leg and the fourth leg, respectively, and leg fixing plates corresponding to the leg connecting plates are fixedly provided on the experimental bench, and leg fixing bolts are provided between the leg connecting plates and the corresponding leg fixing plates.

7. The belt conveyor roller dynamic load testing machine according to claim 1, characterized in that: The driving roller comprises a cylinder, and two belt limiting rings are fixedly provided on the outer circumferential surface of the cylinder, and the two belt limiting rings are used to limit the axial position of the tension belt on the cylinder.

8. The belt conveyor roller dynamic load testing machine according to claim 1, characterized in that: The pressure mechanism comprises an upper pressure connection seat installed on the experimental table, a lower pressure connection seat is installed on the free end of the pressure seat, and a pressure cylinder is hingedly installed between the lower pressure connection seat and the upper pressure connection seat.

9. The belt conveyor roller dynamic load testing machine according to claim 8, characterized in that: A pressure detection structure is provided between the pressure-applying lower connecting seat and the pressure seat.

10. The belt conveyor roller dynamic load testing machine according to claim 1, characterized in that: The test bench is provided with a protective structure outside the roller to be tested.

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