Portable shear tester calibration device

Abstract

The utility model belongs to the technical field of calibration, and particularly relates to a portable shear testing machine calibration device which comprises a bottom plate, a supporting plate and two groups of bearing plates, and the top of each bearing plate is detachably connected with a known shear-resistant material through a connecting assembly. A moving assembly capable of changing the positions of the two sets of bearing plates is arranged on the supporting plate, a lifting assembly capable of adjusting the height of a known shear-resistant material is arranged between the bottom plate and the supporting plate, the lifting assembly comprises a plurality of box bodies, and the box bodies are fixedly installed at the top of the bottom plate; according to the utility model, a known shear-resistant material is arranged on the bearing plate, so that the pointing direction of a pointer in the shear-resistant testing machine can be adjusted by taking the shear resistance of the known shear-resistant material as a reference point, and further, the shear-resistant testing machine can be calibrated; therefore, the phenomenon of inaccurate detection in the use process of the shear tester is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of calibration, in particular to a portable shear test machine calibration device. Background Art

[0002] Shear resistance refers to the ultimate ability of a building to resist shear failure, and its value is equal to the critical shear force at shear failure. In layman's terms, shear resistance refers to the ability of a material to resist external forces (shear forces) of equal magnitude, opposite direction, and very close lines of action along a specific cross section (shear surface). The most typical example of this is to go to a construction site and see workers using special shears to cut steel bars purchased from the market into sections of steel bars of the required length for construction.

[0003] At present, shear resistance is usually tested by a shear tester. However, after long-term use, the accuracy of the existing shear tester will decrease. For example, patent CN204008338U discloses a pendulum shear impact tester. After long-term use, the pointer in the patent will deviate. If it is not calibrated in time, it will affect the accuracy of shear resistance detection. However, there is currently no special calibration equipment to calibrate it. Therefore, a portable shear tester calibration device is invented. Utility Model Content

[0004] In view of the above problems and / or the problems existing in the existing portable shear test machine calibration device, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a portable shear test machine calibration device, which can solve the above-mentioned existing problems.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] A portable shear test machine calibration device comprises a base plate, a support plate and two groups of bearing plates, the top of the bearing plate is detachably connected to a known shear resistance material via a connecting assembly, a moving assembly capable of changing the positions of the two groups of bearing plates is provided on the support plate, and a lifting assembly capable of adjusting the height of the known shear resistance material is provided between the base plate and the support plate.

[0008] As a preferred solution of the portable shear test machine calibration device described in the utility model, the lifting assembly includes:

[0009] Box body, a plurality of box bodies are fixedly installed on the top of the bottom plate;

[0010] The cylinder is fixedly installed in the box body, and the cylinder is fixedly installed on the support plate through a piston rod.

[0011] As a preferred solution of the portable shear test machine calibration device described in the utility model, the mobile component includes:

[0012] Side panels, two sets of side panels are fixedly installed at both ends of the top of the support plate;

[0013] A screw rod, the screw rod being rotatably connected between the two sets of side plates through a bearing;

[0014] The two ends of the screw rod are threadedly connected to the sliders, and a bearing plate is fixedly installed between the two groups of sliders.

[0015] As a preferred solution of the portable shear test machine calibration device described in the utility model, a guide rod is fixedly installed between the two groups of side plates, and the slider is slidably connected to the guide rod.

[0016] As a preferred solution of the portable shear test machine calibration device described in the utility model, wherein: a box body is fixedly installed on a group of side panels, a servo motor is fixedly installed in the inner cavity of the box body, and a screw is fixedly installed on the output shaft of the servo motor.

[0017] As a preferred solution of the portable shear test machine calibration device described in the utility model, the connecting component is:

[0018] First positioning grooves, a plurality of first positioning grooves are formed on the top of the carrier plate;

[0019] An electromagnet, wherein the electromagnet is fixedly installed in the first positioning groove;

[0020] Iron blocks, a plurality of iron blocks are fixedly installed at the bottom of the known shear-resistant material, and the iron blocks are inserted into the first positioning grooves and adsorbed on the electromagnets.

[0021] As a preferred solution of the portable shear test machine calibration device described in the utility model, the connecting component is:

[0022] Second positioning grooves, a plurality of second positioning grooves are provided on the top of the carrying plate;

[0023] Positioning blocks, a plurality of positioning blocks are fixedly installed on the bottom of the known shear-resistant material, and the positioning blocks are inserted into the second positioning grooves.

[0024] As a preferred solution of the portable shear test machine calibration device described in the utility model, the connecting component is also:

[0025] Velcro round fleece surface, the top of the carrying plate is provided with a plurality of Velcro round fleece surfaces;

[0026] Velcro quilled surface, the bottom end of the known shear resistance material is provided with a plurality of Velcro quilled surfaces, and the Velcro quilled surface is bonded to the Velcro round quilled surface.

[0027] Compared with existing technologies:

[0028] 1. By setting a material with known shear resistance on the bearing plate, it is possible to adjust the pointer direction in the shear test machine by using the shear resistance of the material with known shear resistance as a reference point, thereby calibrating the shear test machine to avoid inaccurate detection during the use of the shear test machine.

[0029] 2. By setting up a lifting component, it is possible to adjust the height of a known shear-resistant material. By adjusting the height of a known shear-resistant material, the use range of the equipment can be improved. For example, it can be used in a variety of shear testing machines, because the height of the pendulum knife in each shear testing machine is different (because the height of the product to be tested is different).

[0030] 3. By setting two groups of known shear resistance materials and by setting a movable component that can change the positions of the two groups of bearing plates, it is possible to perform multiple calibrations on the shear test machine, thereby improving the calibration accuracy of the shear test machine to a certain extent.

[0031] 4. By setting up the connecting components, it is convenient for personnel to disassemble and assemble the known shear-resistant materials. By facilitating the disassembly and assembly of the known shear-resistant materials, it can not only improve the convenience, but also improve the disassembly and assembly efficiency of the known shear-resistant materials to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic front view of the structure of Embodiment 1 of the utility model;

[0033] Figure 2 This is a schematic diagram of the structure of the lifting component of the utility model;

[0034] Figure 3 It is a side view schematic diagram of the mobile assembly of the utility model;

[0035] Figure 4 It is a front view schematic diagram of the structure of Example 2 of the utility model.

[0036] In the figure: base plate 10, support plate 20, bearing plate 30, box body 40, cylinder 41, side plate 50, screw 51, slider 52, guide rod 53, box body 54, servo motor 55, known shear resistance material 60, first positioning groove 70, iron block 71, electromagnet 72, second positioning groove 76, positioning block 77, Velcro round fur surface 78, Velcro burred surface 79. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] Embodiment 1:

[0039] The utility model provides a portable shear test machine calibration device, please refer to Figure 1-Figure 3 , including a base plate 10, a support plate 20 and two groups of bearing plates 30, the top of the bearing plate 30 is detachably connected to a known shear-resistant material 60 through a connecting component, wherein the known shear-resistant material 60 includes but is not limited to rock, and the shape of the known shear-resistant material 60 is set to be plate-shaped, and a moving component capable of changing the positions of the two groups of bearing plates 30 is provided on the support plate 20, and a lifting component capable of adjusting the height of the known shear-resistant material 60 is provided between the base plate 10 and the support plate 20, wherein the shape of the base plate 10 can be set according to demand, as long as it is ensured that the base plate 10 can be installed on the support in patent CN204008338U.

[0040] The lifting assembly includes: a box body 40 and a cylinder 41;

[0041] A plurality of boxes 40 are fixedly mounted on the top of the bottom plate 10 , and a cylinder 41 is fixedly mounted in the box 40 , and the cylinder 41 is fixedly mounted on the support plate 20 via a piston rod.

[0042] The moving assembly includes: a side plate 50, a screw rod 51, a slider 52, a guide rod 53, a box 54, and a servo motor 55;

[0043] Two groups of side plates 50 are fixedly installed at both ends of the top of the support plate 20, and the screw 51 is rotatably connected between the two groups of side plates 50 through bearings. Both ends of the screw 51 are threadedly connected to the slider 52, and the bearing plate 30 is fixedly installed between the two groups of sliders 52. A guide rod 53 is fixedly installed between the two groups of side plates 50, and the slider 52 is slidably connected to the guide rod 53. The guide rod 53 is arranged to prevent the slider 52 from rotating. A box body 54 is fixedly installed on one group of side plates 50, and a servo motor 55 is fixedly installed in the inner cavity of the box body 54, and the output shaft of the servo motor 55 is fixedly installed with the screw 51.

[0044] The connecting components are: a first positioning groove 70, an iron block 71, and an electromagnet 72;

[0045] A plurality of first positioning grooves 70 are formed at the top of the supporting plate 30 , and the electromagnets 72 are fixedly installed in the first positioning grooves 70 . A plurality of iron blocks 71 are fixedly installed at the bottom of the known shear-resistant material 60 , and the iron blocks 71 are inserted into the first positioning grooves 70 and adsorbed on the electromagnets 72 .

[0046] Working principle: insert the iron block 71 into the first positioning groove 70. At this time, the iron block 71 is adsorbed by the electromagnet 72 to realize the installation of the known shear-resistant material 60. Then, the bottom plate 10 is installed on the support in the patent CN204008338U. Then, the support plate 20 is lifted and lowered by the cylinder 41 until the known shear-resistant material 60 is at a suitable height. Then, the shear resistance of the known shear-resistant material 60 can be tested by the patent CN204008338U. Then, the known shear-resistant material 60 can be installed. The detected shear resistance is compared with the shear resistance of the known shear resistance material 60 itself. If they are different, the pointer on patent CN204008338U can be pointed to the shear resistance value of the known shear resistance material 60 itself. Afterwards, the screw 51 is rotated by the servo motor 55 to make another group of unused known shear resistance materials 60 located at the pendulum knife position in patent CN204008338U. Afterwards, the shear resistance of the other group of known shear resistance materials 60 can be tested to determine whether the calibration is in place.

[0047] Embodiment 2:

[0048] The utility model provides a portable shear test machine calibration device, please refer to Figure 4 The connecting components are: a second positioning groove 76, a positioning block 77, a Velcro round surface 78, and a Velcro burr surface 79;

[0049] A plurality of second positioning grooves 76 are provided at the top of the supporting plate 30, a plurality of positioning blocks 77 are fixedly installed at the bottom of the known shear-resistant material 60, and the positioning blocks 77 are inserted into the second positioning grooves 76, a plurality of Velcro circular hairy surfaces 78 are provided at the top of the supporting plate 30, a plurality of Velcro burr surfaces 79 are provided at the bottom end of the known shear-resistant material 60, and the Velcro burr surfaces 79 are bonded to the Velcro circular hairy surfaces 78.

[0050] Working principle: insert the positioning block 77 into the second positioning groove 76, and make the Velcro round hair surface 78 and the Velcro burr surface 79 bonded to each other to realize the installation of the known shear resistance material 60, then install the bottom plate 10 on the support in the patent CN204008338U, then, the support plate 20 is lifted and lowered by the cylinder 41 until the known shear resistance material 60 is at a suitable height, then, the shear resistance of the known shear resistance material 60 can be tested by the patent CN204008338U, then, The detected shear resistance is compared with the shear resistance of the known shear resistance material 60 itself. If they are different, the pointer on patent CN204008338U can be pointed to the shear resistance value of the known shear resistance material 60 itself. Afterwards, the screw 51 is rotated by the servo motor 55 to make another group of unused known shear resistance materials 60 located at the pendulum knife position in patent CN204008338U. Afterwards, the shear resistance of the other group of known shear resistance materials 60 can be tested to determine whether the calibration is in place.

[0051] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention may be used in combination with each other in any manner, and the fact that these combinations are not exhaustively described in this specification is only for the sake of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A portable shear test machine calibration device, comprising a base plate (10), a support plate (20) and two sets of bearing plates (30), characterized in that: The top of the bearing plate (30) is detachably connected to a known shear-resistant material (60) via a connecting assembly, a moving assembly capable of changing the positions of the two groups of bearing plates (30) is provided on the support plate (20), and a lifting assembly capable of adjusting the height of the known shear-resistant material (60) is provided between the bottom plate (10) and the support plate (20).

2. A portable shear test machine calibration device according to claim 1, characterized in that: The lifting assembly comprises: Box bodies (40), a plurality of box bodies (40) are fixedly mounted on the top of the bottom plate (10); The cylinder (41) is fixedly mounted in the box body (40), and the cylinder (41) is fixedly mounted on the support plate (20) via a piston rod.

3. A portable shear test machine calibration device according to claim 1, characterized in that: The mobile assembly comprises: Side plates (50), two sets of side plates (50) are fixedly mounted on both ends of the top of the support plate (20); A screw rod (51), wherein the screw rod (51) is rotatably connected between the two sets of side plates (50) via a bearing; The two ends of the screw rod (51) are threadedly connected to the sliders (52), and a bearing plate (30) is fixedly installed between the two groups of sliders (52).

4. A portable shear test machine calibration device according to claim 3, characterized in that: A guide rod (53) is fixedly installed between the two groups of side plates (50), and a sliding block (52) is slidably connected to the guide rod (53).

5. A portable shear test machine calibration device according to claim 4, characterized in that: A box body (54) is fixedly mounted on a group of the side plates (50), a servo motor (55) is fixedly mounted in the inner cavity of the box body (54), and a screw rod (51) is fixedly mounted on the output shaft of the servo motor (55).

6. A portable shear test machine calibration device according to claim 1, characterized in that: The connection components are: First positioning grooves (70), a plurality of first positioning grooves (70) are formed on the top of the carrying plate (30); An electromagnet (72), wherein the electromagnet (72) is fixedly mounted in the first positioning groove (70); Iron blocks (71), a plurality of iron blocks (71) are fixedly installed at the bottom of the known shear resistance material (60), and the iron blocks (71) are inserted into the first positioning groove (70) and adsorbed on the electromagnet (72).

7. A portable shear test machine calibration device according to claim 1, characterized in that: The connection components are: Second positioning grooves (76), a plurality of second positioning grooves (76) are formed on the top of the carrier plate (30); Positioning blocks (77), a plurality of positioning blocks (77) are fixedly installed on the bottom of the known shear-resistant material (60), and the positioning blocks (77) are inserted into the second positioning grooves (76).

8. A portable shear test machine calibration device according to claim 7, characterized in that: The connection component is also: Velcro round fleece surface (78), the top end of the carrying plate (30) is provided with a plurality of Velcro round fleece surfaces (78); Velcro quilled surface (79), the bottom end of the known shear resistance material (60) is provided with a plurality of Velcro quilled surfaces (79), and the Velcro quilled surfaces (79) are bonded to the Velcro round quilled surface (78).

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