Spring-tensioned conveyor belt buckle fatigue strength test bench

Abstract

The utility model relates to the technical field of conveying belt testing devices, in particular to a fatigue strength testing rack for a belt buckle of a spring-tensioned conveying belt, which comprises a first underframe and a second underframe, the tail end of the first underframe is in sliding connection with the head end of the second underframe, and a rotating roll shaft is rotatably arranged at the head end of the first underframe. A load roller shaft is rotationally arranged at the tail end of the second bottom frame, the rotating roller shaft and the load roller shaft are connected through a conveying belt, one end of the rotating roller shaft is in transmission connection with an output shaft of a driving motor, and one end of the load roller shaft is in transmission connection with an output shaft of a load motor; a spring tensioning adjusting mechanism is arranged between the first bottom frame and the second bottom frame. The utility model has the beneficial effects that the spring tension adjusting mechanism can ensure that the conveying belt is always kept tensioned, the driving motor provides power for the rotation of the conveying belt, the load motor simulates the working load of the conveying belt, and the strength of the belt buckle can be judged according to the breakage time of the belt buckle under the condition that the conveying belt is loaded.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belt testing devices, in particular to a spring-tensioned conveyor belt buckle fatigue strength testing bench. Background Art

[0002] Conveyor belts are short-distance transmission mechanisms widely used in the prior art. After long-term use, the buckles on the conveyor belts may become loose or even break, which will affect the transmission capacity of the conveyor belts and may even cause safety accidents. Therefore, it is usually necessary to test the fatigue strength of the buckles of different conveyor belts to determine the conveyor belt that meets the needs.

[0003] The testing mechanism for fatigue strength of conveyor belt buckles in the prior art usually includes a transmission roller that drives the conveyor belt to rotate, tensions the conveyor belt through a tensioning wheel, and then loads the conveyor belt to achieve the fatigue strength test of the conveyor belt buckle. The above testing mechanism has the following disadvantages: tensioning is performed through a tensioning wheel, and when the conveyor belt is loose, the position of the tensioning wheel needs to be readjusted to ensure the tensioning effect, which is inefficient. At the same time, many conveyor belts in the prior art are provided with scrapers on the outside, so tensioning wheels cannot be used. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a spring-tensioned conveyor belt buckle fatigue strength test bench to solve the above-mentioned problems existing in the prior art.

[0005] The utility model provides a technical solution to the above-mentioned technical problems as follows: a spring-tensioned conveyor belt buckle fatigue strength test bench, comprising a first base frame and a second base frame, the tail end of the first base frame being slidably connected to the head end of the second base frame to achieve the head end of the first base frame and the tail end of the second base frame moving away from or approaching each other, a rotating roller is rotatably provided on the head end of the first base frame, and a load roller is rotatably provided on the tail end of the second base frame, the axes of the rotating roller and the load roller are arranged in parallel, the rotating roller and the load roller are connected through a conveyor belt, one end of the rotating roller is transmission-connected to the output shaft of a driving motor, and one end of the load roller is transmission-connected to the output shaft of the load motor, and a spring tensioning adjustment mechanism for adjusting the distance between the head end of the first base frame and the tail end of the second base frame is provided between the first base frame and the second base frame.

[0006] The beneficial effects of the utility model are as follows: since the first base frame and the second base frame are slidably connected, the spring tensioning adjustment mechanism can ensure that the conveyor belt always remains tensioned, the driving motor provides power for the rotation of the conveyor belt, the load motor simulates the working load of the conveyor belt, and the strength of the buckle can be judged by the buckle breaking time when the conveyor belt is loaded.

[0007] On the basis of the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, first mounting frames are provided on both sides of the tail end of the first chassis, second mounting frames corresponding to the first mounting frames are provided on both sides of the head end of the second chassis, and the first mounting frame and the second mounting frame are connected via the spring tensioning adjustment mechanism.

[0009] The beneficial effect of adopting the above further scheme is: through the arrangement of the first mounting frame and the second mounting frame, the first base frame and the second base frame can be easily connected through the spring tensioning adjustment mechanism. At the same time, the spring tensioning adjustment mechanism is arranged on the sides of the first base frame and the second base frame, which will not affect the operation of the conveyor belt.

[0010] Furthermore, the spring tensioning adjustment mechanism includes a guide rod, one end of which is fixedly connected to the second mounting frame, and the other end of the guide rod passes through and extends out of the first mounting frame. The guide rod is provided with a baffle that can slide along the length direction of the guide rod, and the guide rod is provided with a limiting mechanism for limiting the baffle. A spring is provided between the baffle and the first mounting frame, and the spring is sleeved on the guide rod, and the two ends of the spring respectively abut the baffle and the first mounting frame.

[0011] The beneficial effect of adopting the above further solution is that the spring applies elastic force to the second mounting bracket and the baffle to ensure the tension of the conveyor belt. At the same time, the tension strength of the conveyor belt can be adjusted by adjusting the position of the baffle on the guide rod.

[0012] Furthermore, the guide rod is a screw rod, the limiting mechanism is threadedly connected to a limiting nut on the guide rod, and the limiting nut is arranged on a side of the baffle away from the first mounting frame.

[0013] The beneficial effect of adopting the above further solution is that the position of the baffle on the guide rod can be adjusted by rotating the limit nut, which is convenient for adjustment.

[0014] Furthermore, the limiting mechanism is a limiting seat threadedly connected to the guide rod, and the limiting seat is fixedly connected to the baffle.

[0015] The beneficial effect of adopting the above further solution is that the limit seat and the baffle are fixedly connected, and the position of the baffle on the guide rod can be adjusted by rotating the limit seat.

[0016] Furthermore, one end of the guide rod connected to the second mounting frame is threadedly connected to two locking nuts, and the two locking nuts respectively abut against two sides of the second mounting frame.

[0017] The beneficial effect of adopting the above further solution is that the guide rod is locked and fixedly connected to the first mounting frame by two locking nuts, which facilitates the fixing and disassembly of the guide rod and the first mounting frame.

[0018] Furthermore, a slide groove extending along the fore-and-aft direction of the first base frame is provided at the rear end of the first base frame, and the front end of the second base frame is slidably disposed in the slide groove.

[0019] The beneficial effect of adopting the above further solution is that the tail end of the second chassis is slidably arranged in the slide groove, and the slide groove can guide the relative movement of the second chassis and the first chassis.

[0020] Furthermore, the driving motor is arranged at one side of the first base frame, the load motor is arranged at one side of the second base frame, and the load motor is connected to the load roller shaft through a universal joint coupling.

[0021] The beneficial effects of adopting the above further scheme are: the drive motor and the first frame are spaced apart, and the load motor and the second frame are spaced apart, so as to avoid installing the motor on the frame and reduce the influence of the motor operation vibration on the first frame and the second frame; because the second frame will move during the test, a universal joint coupling is used to connect the load motor and the load roller shaft to avoid the movement of the second frame affecting the transmission of the load motor and the load roller shaft.

[0022] Furthermore, the head end of the first base frame is detachably mounted with two first bearing seats by bolts, and the two ends of the rotating roller shaft are respectively mounted on the first bearing seats by bearings; the tail end of the second base frame is detachably mounted with two second bearing seats by bolts, and the two ends of the load roller shaft are respectively mounted on the second bearing seats by bearings.

[0023] The beneficial effect of adopting the above further solution is that it is easy to install and disassemble.

[0024] Further, the first base frame includes two first beams arranged in parallel and at intervals, the two first beams are fixedly connected by a first connecting beam, and the two ends of the rotating roller shaft are rotatably connected to the two first beams respectively; the second base frame includes two second beams arranged in parallel and at intervals, the two second beams are fixedly connected by a second connecting beam, and the two ends of the load roller shaft are rotatably connected to the two second beams respectively; the tail ends of the two first beams are slidably connected to the head ends of the two second beams in a one-to-one relationship.

[0025] The beneficial effects of adopting the above further solution are: simple structure and low cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0027] Figure 2 It is a top view of the utility model;

[0028] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0029] 1. First base frame; 1-1. First crossbeam; 2. Second base frame; 2-1. Second crossbeam; 2-2. Second connecting beam; 3. Rotating roller; 4. Load roller; 5. Conveyor belt; 6. First mounting frame; 7. Second mounting frame; 8. Guide rod; 9. Baffle; 10. Spring; 11. Limit nut; 12. Locking nut; 13. Slide; 14. First bearing seat; 15. Second bearing seat; 16. Buckle. DETAILED DESCRIPTION

[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0031] like Figure 1 , Figure 2 As shown, an embodiment of the utility model includes a first base frame 1 and a second base frame 2, the first base frame 1 includes two first beams 1-1 arranged in parallel and spaced apart, the two first beams 1-1 are fixedly connected by a first connecting beam, and the two ends of the rotating roller shaft 3 are rotatably connected to the two first beams 1-1 respectively; the second base frame 2 includes two second beams 2-1 arranged in parallel and spaced apart, the two second beams 2-1 are fixedly connected by a second connecting beam 2-2, and the two ends of the load roller shaft 4 are rotatably connected to the two second beams 2-1 respectively; the tail ends of the two first beams 1-1 are slidably connected to the head ends of the two second beams 2-1 in a one-to-one relationship.

[0032] The tail end of the first base frame 1 is slidably connected to the head end of the second base frame 2 to achieve the head end of the first base frame 1 and the tail end of the second base frame 2 moving away from or approaching each other. Specifically, the tail end of the first base frame 1 is provided with a slide groove 13 extending along the head-to-tail direction of the first base frame 1, and the head end of the second base frame 2 is slidably set in the slide groove 13, that is, the tail ends of the two first beams 1-1 are provided with the slide groove 13, and the head ends of the two second beams 2-1 are respectively slidably set in the two slide grooves 13.

[0033] In the embodiment of the utility model, the first crossbeam 1 - 1 and the second crossbeam 2 - 1 are both made of channel steel, the grooves of the two first crossbeams 1 - 1 are arranged opposite to each other, and the grooves on the first crossbeam 1 - 1 constitute the sliding groove 13 .

[0034] A rotating roller 3 is rotatably provided on the head end of the first base frame 1, and a load roller 4 is rotatably provided on the tail end of the second base frame 2. The axes of the rotating roller 3 and the load roller 4 are arranged in parallel. Specifically, two first bearing seats 14 are detachably mounted on the head end of the first base frame 1 by bolts, and the two ends of the rotating roller 3 are respectively mounted on the first bearing seats 14 by bearings; two second bearing seats 15 are detachably mounted on the tail end of the second base frame 2 by bolts, and the two ends of the load roller 4 are respectively mounted on the second bearing seats 15 by bearings, so as to facilitate the installation of the rotating roller 3 and the load roller 4.

[0035] The rotating roller 3 and the load roller 4 are connected by a conveyor belt 5, and the conveyor belt 5 uses a buckle 16 to connect the two ends of the strip body. One end of the rotating roller 3 is connected to the output shaft of the driving motor, and one end of the load roller 4 is connected to the output shaft of the load motor.

[0036] In an embodiment of the utility model, the drive motor is arranged at one side of the first base frame 1, and the load motor is arranged at one side of the second base frame 2. The load motor is connected to the load roller shaft 4 through a universal joint coupling to avoid installing the motor on the base frame and reduce the impact of the motor operation vibration on the first base frame 1 and the second base frame 2; since the second base frame 2 will move during the test, the universal joint coupling is used to connect the load motor and the load roller shaft 4 to avoid the movement of the second base frame 2 affecting the transmission of the load motor and the load roller shaft 4.

[0037] A spring tensioning adjustment mechanism is provided between the first base frame 1 and the second base frame 2 for adjusting the distance between the head end of the first base frame 1 and the tail end of the second base frame 2 .

[0038] In an embodiment of the utility model, first mounting frames 6 are provided on both sides of the tail end of the first base frame 1, and second mounting frames 7 corresponding to the first mounting frames 6 are provided on both sides of the head end of the second base frame 2. The first mounting frame 6 and the second mounting frame 7 are connected by the spring tensioning adjustment mechanism. The arrangement of the first mounting frame 6 and the second mounting frame 7 facilitates the connection between the first base frame 1 and the second base frame 2 through the spring tensioning adjustment mechanism. At the same time, the spring tensioning adjustment mechanism is arranged on the sides of the first base frame 1 and the second base frame 2, which will not affect the operation of the conveyor belt 5.

[0039] The spring tensioning adjustment mechanism includes a guide rod 8, one end of which is fixedly connected to the second mounting frame 7, and the other end of the guide rod 8 passes through and extends out of the first mounting frame 6. The guide rod 8 is provided with a baffle 9 which can slide along the length direction of the guide rod 8, and the guide rod 8 is provided with a limiting mechanism for limiting the baffle 9. A spring 10 is provided between the baffle 9 and the first mounting frame 6, and the spring 10 is sleeved on the guide rod 8. The two ends of the spring 10 respectively abut the baffle 9 and the first mounting frame 6. The spring 10 applies elastic force to the second mounting frame 7 and the baffle 9 to ensure the tension of the conveyor belt 5. At the same time, by adjusting the position of the baffle 9 on the guide rod 8, the tension strength of the conveyor belt 5 can be adjusted.

[0040] In a preferred embodiment of the utility model, the guide rod 8 is a screw rod, and the limiting mechanism is threadedly connected to a limiting nut 11 on the guide rod 8. The limiting nut 11 is arranged on the side of the baffle 9 away from the first mounting frame 6. By rotating the limiting nut 11, the position of the baffle 9 on the guide rod 8 can be adjusted, and the adjustment is convenient.

[0041] In order to facilitate the fixing and disassembly of the guide rod 8 and the first mounting frame 6 , one end of the screw rod connected to the second mounting frame 7 is threadedly connected to two locking nuts 12 , and the two locking nuts 12 respectively abut against two sides of the second mounting frame 7 .

[0042] In addition, the guide rod 8 can also be connected to the second mounting frame 7 by threaded connection, and the guide rod 8 and the second mounting frame 7 can be installed and removed by rotating the guide rod 8.

[0043] In other embodiments of the utility model, the limiting mechanism is a limiting seat threadedly connected to the guide rod 8, and the limiting seat is fixedly connected to the baffle 9. The limiting seat and the baffle 9 are fixedly connected, and the position of the baffle 9 on the guide rod 8 can be adjusted by rotating the limiting seat.

[0044] In addition to the above embodiments, a plurality of limiting holes may be evenly spaced along the length direction of the guide rod 8, the baffle plate 9 may be sleeved on the guide rod 8, and limiting pins may be inserted into the limiting holes to limit the baffle plate 9.

[0045] Since the first base frame 1 and the second base frame 2 are slidably connected, the spring tensioning adjustment mechanism can ensure that the conveyor belt 5 always remains tensioned, and the driving motor provides power for the rotation of the conveyor belt 5. The load motor simulates the working load of the conveyor belt 5. When the conveyor belt 5 is loaded, the strength of the buckle 16 can be judged by the breaking time of the buckle 16.

[0046] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inside", "outside", "peripheral", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred system or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spring-tensioned conveyor belt buckle fatigue strength test bench, characterized in that: The invention comprises a first base frame (1) and a second base frame (2), wherein the tail end of the first base frame (1) is slidably connected to the head end of the second base frame (2) so that the head end of the first base frame (1) and the tail end of the second base frame (2) can move away from or approach each other, a rotating roller (3) is rotatably provided on the head end of the first base frame (1), and a load roller (4) is rotatably provided on the tail end of the second base frame (2), the axes of the rotating roller (3) and the load roller (4) are arranged in parallel, the rotating roller (3) and the load roller (4) are connected via a conveyor belt (5), one end of the rotating roller (3) is transmission-connected to the output shaft of a driving motor, and one end of the load roller (4) is transmission-connected to the output shaft of the load motor, and a spring tensioning adjustment mechanism for adjusting the distance between the head end of the first base frame (1) and the tail end of the second base frame (2) is provided between the first base frame (1) and the second base frame (2).

2. A spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 1, characterized in that: A first mounting frame (6) is provided on both sides of the rear end of the first base frame (1), and a second mounting frame (7) corresponding to the first mounting frame (6) is provided on both sides of the front end of the second base frame (2), and the first mounting frame (6) and the second mounting frame (7) are connected via the spring tensioning adjustment mechanism.

3. The spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 2, characterized in that: The spring tensioning adjustment mechanism comprises a guide rod (8), one end of the guide rod (8) is fixedly connected to the second mounting frame (7), the other end of the guide rod (8) passes through and extends out of the first mounting frame (6), the guide rod (8) is provided with a baffle (9) which can slide along the length direction of the guide rod (8), the guide rod (8) is provided with a limiting mechanism for limiting the baffle (9), a spring (10) is provided between the baffle (9) and the first mounting frame (6), the spring (10) is sleeved on the guide rod (8), and the two ends of the spring (10) respectively abut against the baffle (9) and the first mounting frame (6).

4. The spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 3, characterized in that: The guide rod (8) is a screw rod, the limiting mechanism is threadedly connected to a limiting nut (11) on the guide rod (8), and the limiting nut (11) is arranged on a side of the baffle (9) away from the first mounting frame (6).

5. A spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 4, characterized in that: The limiting mechanism is a limiting seat threadedly connected to the guide rod (8), and the limiting seat is fixedly connected to the baffle (9).

6. The spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 4, characterized in that: One end of the guide rod (8) connected to the second mounting frame (7) is threadedly connected to two locking nuts (12), and the two locking nuts (12) respectively abut against two sides of the second mounting frame (7).

7. The spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 1, characterized in that: The tail end of the first base frame (1) is provided with a slide groove (13) extending along the head-to-tail direction of the first base frame (1), and the head end of the second base frame (2) is slidably arranged in the slide groove (13).

8. The spring-tensioned conveyor belt buckle fatigue strength test bench according to claim 1, characterized in that: The driving motor is arranged at intervals on one side of the first base frame (1), the load motor is arranged at intervals on one side of the second base frame (2), and the load motor is connected to the load roller shaft (4) through a universal joint coupling.

9. A spring-tensioned conveyor belt buckle fatigue strength test bench according to any one of claims 1 to 8, characterized in that: The head end of the first base frame (1) is detachably mounted with two first bearing seats (14) by means of bolts, and the two ends of the rotating roller shaft (3) are respectively mounted on the first bearing seats (14) by means of bearings; the tail end of the second base frame (2) is detachably mounted with two second bearing seats (15) by means of bolts, and the two ends of the load roller shaft (4) are respectively mounted on the second bearing seats (15) by means of bearings.

10. A spring-tensioned conveyor belt buckle fatigue strength test bench according to any one of claims 1 to 8, characterized in that: The first base frame (1) comprises two first beams (1-1) arranged in parallel and at intervals, the two first beams (1-1) are fixedly connected via a first connecting beam, and the two ends of the rotating roller shaft (3) are respectively rotatably connected to the two first beams (1-1); the second base frame (2) comprises two second beams (2-1) arranged in parallel and at intervals, the two second beams (2-1) are fixedly connected via a second connecting beam (2-2), and the two ends of the load roller shaft (4) are respectively rotatably connected to the two second beams (2-1); the tail ends of the two first beams (1-1) are respectively slidably connected to the head ends of the two second beams (2-1) in a pair.

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