Fixing device for lifting belt detection

Abstract

The utility model discloses a fixing device for lifting belt detection, which comprises two vertically arranged assembly plates and a transversely arranged wing plate, a centering roll shaft, at least one guide roll shaft and a range extending roll shaft are transversely connected between the opposite surfaces of the two assembly plates; the centering roll shaft is close to the loading end of the tension testing machine and is consistent with the horizontal axis of tension, two wings of the wing plate are fixedly connected with the opposite faces of the two assembly plates respectively, and positioning pin through holes are formed in the two wings of the wing plate. Two wings of the wing plate are respectively arranged in I-shaped steel on two sides of the tension testing machine and are fixedly connected with the I-shaped steel through pins and the positioning pin through holes; according to the scheme, the fixing device is placed at the two loading ends of the tension testing machine, so that the purpose of increasing the stretching space is achieved, the cost input is small, a long lifting belt can be tested under the condition that the length and the occupied area of equipment are not changed, the practicability is high, the occupied area of the equipment is small, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting belt detection, in particular to a fixing device for lifting belt detection. Background Art

[0002] Safety testing of lifting straps typically uses a horizontal tensile testing machine as a standard instrument. This machine typically includes a running track composed of an I-beam and two loading ends. During testing, the ends of the lifting strap are connected to the two loading ends of the horizontal tensile testing machine. Lifting strap lengths typically range from 1m to 20m, while the test chamber of a conventional horizontal tensile testing machine is approximately 6m long. Furthermore, due to the significant deformation of lifting straps during stretching, this test chamber may only be suitable for testing straps around 4m in length. Testing longer straps requires a larger stretching chamber. Increasing the stretching chamber is one solution, but this increases the length, weight, and floor space of the equipment, significantly increasing equipment costs. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a fixing device for detecting a lifting belt to solve the above problems.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A fixing device for detecting a lifting belt comprises two vertically arranged assembly plates and transversely arranged wing plates, wherein a centering roller, at least one guide roller and an extended-range roller are transversely connected between the facing sides of the two assembly plates, the centering roller is close to the loading end of a tensile testing machine and is consistent with the horizontal axis of tension, the two wings of the wing plates are respectively fixedly connected to the opposite sides of the two assembly plates, and positioning pin through holes are provided on the two wings of the wing plates, the two wings of the wing plates are respectively placed in the I-beams on both sides of the tensile testing machine and are fixedly connected to the I-beams through pins and the positioning pin through holes.

[0006] In the above utility model, further, the wing plate is in a U-shaped structure, and the groove formed on the U-shaped wing plate is used to place two assembly plates, and the two assembly plates are fixedly connected to the two side walls of the groove respectively.

[0007] In the above utility model, further, there are at least two wing panels, which are arranged up and down and fixedly connected to the two assembly plates.

[0008] In the above utility model, further, an adjustment mechanism is provided on the lower surface of the lower wing plate of the two wing plates, and the adjustment mechanism includes threaded holes provided at the four corners of the wing plate and bolts threadedly connected to the threaded holes.

[0009] In the above utility model, further, the number of the range-extending roller shafts is 1 to 7.

[0010] In the above utility model, further, the guide roller is located above the centering roller.

[0011] The beneficial effects of the utility model are:

[0012] This solution increases the stretching space by placing the fixture at the two loading ends of the tensile testing machine. The cost investment is small, and longer lifting belts can be tested while keeping the length and floor space of the equipment unchanged. It can be used to test lifting belts of different lengths. It has high feasibility and cost-effectiveness, is simple and convenient to operate, occupies a small area, and has high space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the fixing device of the utility model;

[0014] Figure 2 This is a rear view of the fixing device of the present invention;

[0015] Figure 3 It is a top view of the utility model;

[0016] Figure 4 It is a right side view of the utility model;

[0017] Figure 5 This is a schematic diagram of the connection between the fixing device of the utility model and the I-beam of the horizontal tensile testing machine.

[0018] In the figure, 1-assembly plate, 2-wing plate, 3-centering roller shaft, 4-guide roller shaft, 5-extended range roller shaft, 6-positioning pin through hole, 7-threaded hole, 8-bolt, 9-pin. DETAILED DESCRIPTION

[0019] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different perspectives and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features within these embodiments may be combined with one another, unless they conflict.

[0020] A lifting belt testing fixture is used to increase the stretching space or stretching stroke of the lifting belt. When performing a lifting belt tension test, two fixtures of this solution are required. The two fixtures are arranged in a mirror image and placed on the loading ends of the tension testing machine on both sides. That is, the two ends of the lifting belt pass through the fixtures and are connected to the loading end of the tension testing machine.

[0021] Please see the attached Figure 1-4 As shown, the fixing device of this scheme includes two vertically arranged assembly plates 1 and horizontally arranged wing plates 2, and a centering roller 3, at least one guide roller 4 and an extended-range roller 5 are horizontally connected between the opposite sides of the two assembly plates 1. The diameter of the extended-range roller 5 is determined by the target load and meets the shear strength of the target load; wherein, the centering roller 3 is used to align with the loading end of the tensile testing machine, and the centering roller 3 is close to the loading end of the tensile testing machine and is consistent with the horizontal axis of the tension, ensuring that the end of the lifting belt and the loading end are located on the same horizontal axis, and the guide roller 4 is located above the centering roller 3. After the end of the lifting belt passes through multiple extended-range rollers 5 and the guide roller 4, the guide roller 4 is located above the centering roller 3 and finally needs to pass through the middle roller to connect with the loading end; by winding multiple extended-range rollers 5, the test stroke of the lifting belt can be increased, thereby achieving the purpose of increasing the test stretching space, reducing the equipment space area occupied, and improving space utilization;

[0022] Among them, preferably, the number of the extended range roller shafts 5 is 1 to 7, and the number of pulleys can be increased or decreased as appropriate according to the target detection length. Figure 4 As shown, only three range-extending rollers 5 are shown, and the winding order or direction of the lifting belt between the multiple range-extending rollers 5 is random. It is only necessary to ensure that the end of the lifting belt near the loading end finally passes through the centering roller 3 from the guide roller 4 and is connected to the loading end.

[0023] As attached Figure 1 and attached Figure 5 As shown, the two wings of the wing plate 2 are fixedly connected to the opposite sides of the two assembly plates 1, and each wing plate 2 is provided with a locating pin through-hole 6. Similarly, the I-beam of the tensile testing machine is also provided with the same locating pin through-hole. The two wings of the wing plate 2 are placed in the I-beam on both sides of the tensile testing machine and fixed to the I-beam via pins 9 and the locating pin through-holes 6. The entire fixture is then placed between the two I-beams and fixed. If other routine tests are affected, the fixture can be disassembled at any time by removing the pins 9, which is simple and convenient to operate.

[0024] Among them, the wing plate 2 is a U-shaped structure, and the groove formed on the U-shaped wing plate 2 (not marked in the accompanying drawings) is used to place two assembly plates 1. The two assembly plates 1 are fixedly connected to the two side walls of the groove, so that the wing plate 2 is semi-enclosed and connected to the two assembly plates 1. The stability of the fixing device is maintained by the wing plate 2, so that when performing a tensile test, the fixing device will not be affected by the stretching of the lifting belt and move forward, backward, left and right, thereby improving the stability of the fixing device and the accuracy of the test.

[0025] In the above embodiment, preferably, at least two wing panels 2 are provided, and the two wing panels 2 are arranged up and down and fixedly connected to the two assembly plates 1 to further improve the stability of the fixing device.

[0026] Preferably, to improve the accuracy of the test data, an adjustment mechanism is provided on the lower surface of the lower middle wing plate 2 of the two wing plates 2. The adjustment mechanism is used to adjust the horizontal and centering of the fixture and the tension axis. The adjustment mechanism includes threaded holes 7 provided at the four corners of the wing plate 2 and bolts 8 threadedly connected to the threaded holes 7. Specifically, when installing the adjustment mechanism on the I-beam of the tensile testing machine, the two wings of the wing plate 2 are first placed between the I-beams on both sides of the tensile testing machine, so that the locating pin holes 6 on the wing plate 2 are aligned with the locating pin holes on the I-beam. Then, by adjusting the four bolts 8, the height of the entire fixture is adjusted so that the centering roller 3 is aligned with the loading end of the tensile test and remains on the same horizontal tension axis as the loading end. Then, pins 9 are inserted through the locating pin holes 6 on the I-beam and wing plate 2 to position and secure the entire fixture to prevent it from being affected or moved by the tension of the lifting strap. This solution is highly applicable and can be used to test lifting straps of different lengths. It is simple and convenient to operate, has a small equipment footprint, high space utilization, and low cost.

[0027] In the description of the present invention, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0028] The above-described embodiments merely represent specific implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the scope of the present invention, all of which fall within the scope of protection of the present invention.

Claims

1. A fixing device for detecting a lifting belt, characterized in that: The invention comprises two vertically arranged assembly plates (1) and transversely arranged wing plates (2), wherein a centering roller (3), at least one guide roller (4) and an extended-range roller (5) are transversely connected between the opposite sides of the two assembly plates (1), the centering roller (3) is close to the loading end of the tensile testing machine and is consistent with the tensile horizontal axis, the two wings of the wing plates (2) are respectively fixedly connected to the opposite sides of the two assembly plates (1), and positioning pin through holes (6) are provided on the two wings of the wing plates (2), the two wings of the wing plates (2) are respectively placed in the I-beams on both sides of the tensile testing machine and are fixedly connected to the I-beams through pins (9) and the positioning pin through holes (6).

2. A lifting belt detection fixing device according to claim 1, characterized in that: The wing plate (2) has a U-shaped structure. The groove formed on the U-shaped wing plate (2) is used to place two assembly plates (1). The two assembly plates (1) are fixedly connected to the two side walls of the groove respectively.

3. A lifting belt detection fixing device according to claim 2, characterized in that: At least two wing plates (2) are provided, and the two wing plates (2) are arranged up and down and fixedly connected to the two assembly plates (1).

4. A lifting belt detection fixing device according to claim 3, characterized in that: An adjustment mechanism is provided on the lower surface of the wing plate (2) in the middle and lower part of the two wing plates (2). The adjustment mechanism comprises threaded holes (7) provided at the four corners of the wing plate (2) and bolts (8) threadedly connected to the threaded holes (7).

5. A lifting belt detection fixing device according to claim 1, characterized in that: The number of the range-increasing roller shafts (5) is 1 to 7.

6. A lifting belt detection fixing device according to claim 1, characterized in that: The guide roller shaft (4) is located above the centering roller shaft (3).

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