Measuring device suitable for shearing force of materials with multiple sizes

Abstract

The utility model relates to a measuring device suitable for shearing force of multi-size materials, which comprises a base, a hydraulic pull rod is fixed on the upper side of the base, vertical frames are arranged on both sides of the hydraulic pull rod, the bottoms of the vertical frames are fixedly connected with the base, guide rails are fixed on the sides, close to each other, of the two vertical frames, and the guide rails are fixed on the upper side of the base. A top plate is fixed to the top of the vertical frame, a bearing table is fixed to the output shaft end of the hydraulic pull rod, the two sides of the bearing table are slidably connected with the guide rails, and clamps are installed at the bottom of the top plate and the top of the bearing table.

Description

Technical Field

[0001] The utility model relates to the technical field of measuring devices, in particular to a measuring device suitable for shearing force of materials of multiple sizes. Background Art

[0002] The existing shear force measurement device used two symmetrically arranged hydraulic levers to measure shear force by pulling. Because the original clamps were small, they needed to be replaced when measuring large materials. The large clamps required a long adjustment stroke to clamp small materials, making adjustment difficult and resulting in unsatisfactory clamping. Furthermore, the force of the hydraulic levers on both sides could not be guaranteed to be consistent, leading to measurement errors.

[0003] Therefore, a shear force measuring device suitable for materials of multiple sizes is needed to solve the above technical problems. Utility Model Content

[0004] The utility model aims to solve the technical problems existing in the prior art and provides a shear force measuring device suitable for materials of multiple sizes.

[0005] The technical solution of the utility model for solving the above technical problems is as follows: a measuring device for the shear force of materials of multiple sizes, comprising a base, a hydraulic pull rod fixed on the upper side of the base, vertical frames provided on both sides of the hydraulic pull rod, the bottom of the vertical frames fixedly connected to the base, guide rails fixed on the sides of the two vertical frames close to each other, a top plate fixed on the top of the vertical frames, a load-bearing platform fixed on the output shaft end of the hydraulic pull rod, both sides of the load-bearing platform being slidably connected to the guide rails, and clamps installed on the bottom of the top plate and the top of the load-bearing platform.

[0006] Preferably, the above-mentioned shear force measuring device adapts to materials of multiple sizes, wherein the clamp includes a slide, a first clamping block, and a second clamping block, the second clamping block is slidably connected to the slide, a screw bracket is fixed on the slide, the internal thread of the screw bracket is connected to a threaded rod, and one end of the threaded rod is connected to the second clamping block.

[0007] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, the threaded rod is radially rotatably connected to the second clamping block, and the threaded rod is axially fixedly connected to the second clamping block.

[0008] Preferably, the above-mentioned shear force measuring device adapts to materials of multiple sizes, wherein the first clamp is slidably connected to the slide, an insertion rod is installed inside the first clamp, and a plurality of equidistantly arranged holes are provided on the top surface of the slide along the length direction, and the insertion rod is adapted to the holes.

[0009] Preferably, the above-mentioned shear force measuring device adapted to materials of multiple sizes, wherein the interior of the first clamp is provided with a cavity, the exterior of the insertion rod is provided with a spring, the exterior of the insertion rod is fixed with a retaining ring, the spring and retaining ring are both located inside the cavity, and the retaining ring is located on the lower side of the spring.

[0010] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, a cover plate is fixed to the top of the first clamping block, the insertion rod passes through the cover plate, and the upper end of the spring abuts against the cover plate.

[0011] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, extension plates are fixed on both sides of the top of the slide, and the extension plates are embedded in the first clamping block and the second clamping block.

[0012] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, a limiting block is fixed to one end of the slide away from the screw bracket.

[0013] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, the lower end of the insertion rod is arc-shaped.

[0014] Preferably, in the above-mentioned shear force measuring device adapted to materials of various sizes, a handle is installed at one end of the insert rod and the threaded rod.

[0015] The beneficial effects of this utility model are as follows: It only has one hydraulic pull rod, and guide rails are slidably connected on both sides of the load-bearing platform, thereby improving measurement accuracy and ensuring the stability of the load-bearing platform. By designing the first clamping block to be slidingly adjustable, it is first moved to the appropriate position and fixed by the insertion rod during use, which reduces the stroke adjustment of the threaded rod, thereby allowing for faster clamping of materials. Furthermore, the threaded rod in this utility model does not need to be too long to clamp materials of various sizes. Therefore, the threaded rod is designed to be shorter, which improves the stability of the threaded rod during tension and provides a correspondingly stronger clamping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixture of the utility model;

[0018] Figure 3 for Figure 2 Cross-section at A-A in the middle;

[0019] Figure 4 for Figure 2 Cross-section at B-B in the middle;

[0020] Figure 5 Schematic diagram of the structure of the plug rod.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0022] 1. Base, 2. Vertical frame, 3. Load-bearing platform, 4. Hydraulic pull rod, 5. Roller, 6. Clamp, 61. Slide, 62. Extension plate, 63. Limit block, 64. First clamping block, 65. Insert rod, 66. Second clamping block, 67. Screw bracket, 68. Threaded rod, 69. Socket, 610. Cavity, 611. Spring, 612. Cover plate, 613. Retaining ring, 7. Top plate. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figures 1 to 5 As shown, a shear force measurement device suitable for materials of various sizes includes a base 1 with a lockable roller 5 mounted on its bottom. A hydraulic pull rod 4 is fixed to the upper side of the base 1 and located in the middle of the base 1. Vertical frames 2 are vertically mounted on either side of the hydraulic pull rod 4, the bottoms of the vertical frames 2 being fixedly connected to the base 1. A top plate 7 is fixed to the top of the vertical frames 2.

[0025] Guide rails are fixed to the adjacent sides of the two vertical frames 2. The output shaft end of the hydraulic tie rod 4 is fixed to the load-bearing platform 3, which is slidably connected to the guide rails on both sides. Clamps 6 are installed at the bottom of the top plate 7 and the top of the load-bearing platform 3. When measuring the shear force of a material using this device, the clamps 6 clamp the ends of the material. The hydraulic tie rod 4 is then controlled by an external controller, pulling the lower end of the material downward. The tension of the hydraulic tie rod 4 is then monitored via a connected display.

[0026] The clamp 6 includes a slide 61, a first clamp 64, and a second clamp 66. Both the first clamp 64 and the second clamp 66 are slidably connected to the slide 61. Extension plates 62 are fixed to both sides of the top of the slide 61. These extension plates 62 are embedded within the first and second clamps 64 and 66, ensuring that the first and second clamps 64 and 66 remain attached to the slide 61 when tension is applied by the hydraulic pull rod 4. A screw bracket 67 is fixed to one end of the upper side of the slide 61. The screw bracket 67 is located near the center of the load-bearing platform 3, and its other end is bolted to a limit block 63, preventing the first and second clamps 64 and 66 from detaching from the slide 61. A threaded rod 68 is internally threadedly connected to the screw bracket 67. One end of the threaded rod 68 is connected to the second clamp 66. The threaded rod 68 is radially rotatably connected to the second clamp 66 and axially fixedly connected to the second clamp 66. Rotating the threaded rod 68 drives the second clamp 66 to move on the slide 61.

[0027] A rod 65 is mounted within the first clamping block 64. Both the rod 65 and the threaded rod 68 have handles mounted on one end. The top surface of the slide 61 is provided with multiple equally spaced insertion holes 69 along its length, with the rods 65 fitting into these holes. During use, depending on the size of the material being tested, the first clamping block 64 is first moved close to the second clamping block 66, and the rod 65 is inserted into the corresponding insertion hole 69 to secure the first clamping block 64. The threaded rod 68 is then rotated to push the second clamping block 66 toward the material, clamping it securely. By designing the first clamping block 64 as a sliding, adjustable device, it is first moved to the desired position and secured with the rod 65. This reduces the travel adjustment required for the threaded rod 68, allowing for faster material clamping. Furthermore, the threaded rod 68 does not need to be excessively long to clamp materials of varying sizes. Therefore, the shorter length of the threaded rod 68 provides a more secure clamping effect.

[0028] like Figure 4 、 Figure 5 As shown, in order to further facilitate the adjustment of the first clamping block 64, a cavity 610 is provided inside the first clamping block 64, and a spring 611 is provided on the outside of the insert rod 65. A retaining ring 613 is fixed to the outside of the insert rod 65 by a machine screw. The spring 611 and the retaining ring 613 are both located inside the cavity 610, and the retaining ring 613 is located on the lower side of the spring 611. The lower end of the insert rod 65 passes through the cavity 610, and the retaining ring 613 cannot pass through. A cover plate 612 is fixed to the top of the first clamping block 64 by bolts, and the insert rod 65 passes through the cover plate 612, and the upper end of the spring 611 abuts against the cover plate 612. The design of the cover plate 612 facilitates installation and disassembly maintenance. The lower end of the insert rod 65 is arc-shaped, which facilitates the insertion of the insert rod 65 into the socket 69. When the position of the first clamping block 64 needs to be adjusted, pull up the insertion rod 65 and push the first clamping block 64. After adjusting it into place, release the insertion rod 65. If the insertion rod 65 falls, it means that its lower end is inserted into the socket 69. If it does not fall, move it to the left or right. When the insertion rod 65 moves to the upper side of the socket 69, it will automatically be inserted into it.

[0029] Working Principle: When in use, first move the first clamp 64 to the appropriate position according to the size of the material to be tested. During this process, pull the rod 65 upward to push the first clamp 64. After adjusting it into place, release the rod 65. If the rod 65 falls, it means that its lower end is inserted into the socket 69. If it does not fall, move it slightly to the left or right. When the rod 65 moves to the upper side of the socket 69, it will automatically insert into it, thereby fixing the first clamp 64. Then, by rotating the threaded rod 68, the second clamp 66 is pushed toward the material and clamped. The position of the first clamp 64 of the two clamps 6 must be adjusted to be consistent, and the upper and lower positions are on the same vertical line. After clamping the two ends of the material using the above method, the hydraulic pull rod 4 is then activated to begin testing.

[0030] In the description of the present invention, it should be understood that the terms "upper", "lower", "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, and a specific direction structure and operation, and therefore, cannot be understood as a limitation on the present invention. In addition, "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A device for measuring shear force of materials of various sizes, characterized by: The invention comprises a base (1), a hydraulic pull rod (4) is fixed on the upper side of the base (1), vertical frames (2) are provided on both sides of the hydraulic pull rod (4), the bottom of the vertical frame (2) is fixedly connected to the base (1), a guide rail is fixed on the side close to each other of the two vertical frames (2), a top plate (7) is fixed on the top of the vertical frame (2), a bearing platform (3) is fixed on the output shaft end of the hydraulic pull rod (4), both sides of the bearing platform (3) are slidably connected to the guide rails, and a clamp (6) is installed on the bottom of the top plate (7) and the top of the bearing platform (3).

2. The shear force measuring device for materials of various sizes according to claim 1, characterized in that: The clamp (6) includes a slide (61), a first clamping block (64), and a second clamping block (66). The second clamping block (66) is slidably connected to the slide (61). A screw bracket (67) is fixed on the slide (61). The internal thread of the screw bracket (67) is connected to a threaded rod (68). One end of the threaded rod (68) is connected to the second clamping block (66).

3. The shear force measuring device for materials of various sizes according to claim 2, characterized in that: The threaded rod (68) is connected to the second clamping block (66) in a radially rotatable manner, and the threaded rod (68) is fixedly connected to the second clamping block (66) in an axial manner.

4. The shear force measuring device for materials of various sizes according to claim 2, characterized in that: The first clamping block (64) is slidably connected to the slide (61), an inserting rod (65) is installed inside the first clamping block (64), and a plurality of equidistantly arranged inserting holes (69) are provided on the top surface of the slide (61) along the length direction, and the inserting rod (65) is adapted to the inserting holes (69).

5. The shear force measuring device for materials of various sizes according to claim 4, characterized in that: A cavity (610) is provided inside the first clamping block (64), a spring (611) is sleeved on the outside of the insertion rod (65), a retaining ring (613) is fixed to the outside of the insertion rod (65), the spring (611) and the retaining ring (613) are both located inside the cavity (610), and the retaining ring (613) is located on the lower side of the spring (611).

6. The shear force measuring device for materials of various sizes according to claim 5, characterized in that: A cover plate (612) is fixed to the top of the first clamping block (64), the insertion rod (65) passes through the cover plate (612), and the upper end of the spring (611) abuts against the cover plate (612).

7. The shear force measuring device for materials of various sizes according to claim 4, characterized in that: Extension plates (62) are fixed on both sides of the top of the slide (61), and the extension plates (62) are embedded in the first clamping block (64) and the second clamping block (66).

8. The shear force measuring device for materials of various sizes according to claim 4, characterized in that: A limiting block (63) is fixed to one end of the slide (61) away from the screw support (67).

9. The shear force measuring device for materials of various sizes according to claim 4, characterized in that: The lower end of the insertion rod (65) is arc-shaped.

10. The shear force measuring device for materials of various sizes according to claim 4, characterized in that: One end of the inserting rod (65) and the threaded rod (68) is provided with a handle.

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