Special-shaped rigid material strength detection device

Abstract

The utility model relates to a special-shaped rigid material strength detection device which comprises a base and a pressure-bearing table arranged on the surface of the base, a hydraulic cylinder outputting downwards is further arranged above the base, a protective barrel is arranged on the upper surface of the pressure-bearing table, and an extension part is outwards arranged on the side surface of the protective barrel in the diameter direction. And two abutting structures which are distributed up and down are arranged in each extension part. According to the clamping device, the upper push rod and the lower push rod are arranged, so that a special-shaped material can be supported in the direction prone to toppling over when being detected, and compared with a conventional clamping device, the clamping device can clamp the top of the special-shaped material through the sliding block, so that the top of the special-shaped material is prevented from directly toppling over or deforming after being pressed; and the arrangement of the sliding block can adapt to special-shaped materials with different sizes.

Description

Technical Field

[0001] The utility model belongs to the field of material detection, and in particular relates to a strength detection device for special-shaped rigid materials. Background Art

[0002] In the process of strength testing of materials, a common testing method is to clamp the material, then pressurize it with a hydraulic device, and record the pressure parameters of the hydraulic device. For safety reasons, a protective cylinder is also set around the material to prevent broken materials from bursting out.

[0003] The fixtures used in common pressure testing generally have a simple structure and are suitable for materials with relatively regular overall shapes. However, for some non-standard special-shaped materials, such as L-shaped materials and S-shaped materials, they may deform or tip over when subjected to pressure. Utility Model Content

[0004] The purpose of the utility model is to provide a strength detection device for special-shaped rigid materials in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A device for detecting the strength of special-shaped rigid materials comprises a base and a pressure platform arranged on the surface of the base, a hydraulic cylinder with downward output is also arranged above the base, the upper surface of the pressure platform has a protective tube, the side surface of the protective tube is provided with an extension portion outward in the diameter direction, each extension portion has two clamping structures distributed up and down, wherein the clamping structure comprises a push rod extending into the protective tube, and a fixed block is arranged at the end of the push rod located in the lower layer, and a sliding block sliding in the vertical direction is arranged at the end of the push rod located in the upper layer.

[0007] As a further optimization scheme of the utility model, the clamping structure is driven by hydraulics, and the clamping structure includes a hydraulic chamber opened in the extension part, and a hydraulic plate arranged in the hydraulic chamber, and the hydraulic plate is connected to the push rod. The clamping structure can be more conveniently controlled by hydraulic drive, and due to the incompressibility of the liquid, the push rod will not collapse when subjected to force.

[0008] As a further optimization scheme of the utility model, the hydraulic chamber is pressurized by a pumping assembly and a pressure pipe, and an electrically controlled valve is provided at the entrance of each hydraulic chamber. In this scheme, hydraulic medium is pumped to each hydraulic chamber by the pumping assembly, and a valve is provided at the entrance of each hydraulic chamber to select the hydraulic chamber to be opened according to demand, and the valve is closed when the push rod is subjected to force to prevent collapse.

[0009] As a further optimization solution of the utility model, the tightening structure is driven by a thread, and the thread drive structure is another way to adjust the push rod. The device is simple and easy to maintain.

[0010] As a further optimized solution of the present utility model, the sliding block has a sliding strip, and a side groove corresponding to the sliding strip is provided at the end of the push rod located in the upper layer. Moreover, the sliding block is jacked up by a spring to the highest position. When the push rod in the upper layer touches the side of the top of the special-shaped material, when the bottom of the output end of the hydraulic cylinder presses on the special-shaped material, it may touch the push rod at the same time. In order to prevent the push rod from affecting the lowering of the hydraulic cylinder, a slidable sliding block is provided at the end of the push rod, and this sliding block can adapt to special-shaped materials of different heights.

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

[0012] The present utility model is provided with a push rod for supporting the easily toppling direction of the special-shaped material, and there is a clamping effect between the push rods. Compared with the conventional clamping device, this device can clamp at the top of the special-shaped material by setting a sliding block, preventing it from directly toppling or deforming after being pressured at the top. The setting of the sliding block can also cope with special-shaped materials of different sizes. Description of the Drawings

[0013] Figure 1 is the overall structural schematic diagram of the present utility model.

[0014] Figure 2 is the present utility model Figure 1 View in the direction of A-A in the present utility model.

[0015] Figure 3 is the present utility model Figure 1 Enlarged view of part B structure in the present utility model.

[0016] Figure 4 is the present utility model Figure 2 Enlarged view of part C structure in the present utility model.

[0017] In the figure: 1, base; 2, bearing platform; 3, hydraulic cylinder; 4, protective cylinder; 5, extension part; 51, hydraulic cavity; 52, push rod; 521, side groove; 53, hydraulic plate; 61, pressure pipe; 62, valve; 63, pumping assembly; 7, sliding block; 71, sliding strip; 72, spring; 8, fixed block. Detailed Implementation Modes

[0018] The following further describes the present application in detail with reference to the drawings. It is necessary to point out here that the following specific implementation modes are only used to further illustrate the present application and cannot be understood as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0019] Embodiment 1

[0020] As Figures 1-4As shown, a strength testing device for special-shaped rigid materials includes a base 1 and a pressure platform 2 arranged on the surface of the base 1, and a hydraulic cylinder 3 with downward output is also arranged above the base 1. The upper surface of the pressure platform 2 has a protective tube 4, and the side surface of the protective tube 4 is provided with an extension 5 outward in the diameter direction, and each extension 5 has two clamping structures distributed up and down, wherein the clamping structure includes a push rod 52 extending into the protective tube 4, and a fixed block 8 is arranged at the end of the push rod 52 located in the lower layer, and a sliding block 7 sliding in the vertical direction is arranged at the end of the push rod 52 located in the upper layer.

[0021] The clamping structure is driven by hydraulic pressure, and includes a hydraulic chamber 51 opened in the extension part 5, and a hydraulic plate 53 arranged in the hydraulic chamber 51. The hydraulic plate 53 is connected to the push rod 52. The clamping structure can be more conveniently controlled by hydraulic drive, and due to the incompressibility of the liquid, the push rod 52 will not collapse when subjected to force.

[0022] The hydraulic chamber 51 is pressurized by a pumping assembly 63 and a pressure pipe 61, and an electrically controlled valve 62 is provided at the entrance of each hydraulic chamber 51. In this scheme, hydraulic medium is pumped into each hydraulic chamber 51 by the pumping assembly 63, and a valve 62 is provided at the entrance of each hydraulic chamber 51, so that the hydraulic chamber 51 to be opened can be selected according to demand, and the valve 62 is closed when the push rod 52 is subjected to force to prevent the push rod 52 from collapsing.

[0023] The tightening structure is driven by a thread. The thread drive structure is another way to adjust the push rod 52 (not shown in the figure). The device is simple and easy to maintain. The push rod is directly moved to a specified position through the thread.

[0024] The sliding block 7 has a sliding bar 71, and a side groove 521 corresponding to the sliding bar 71 is provided at the end of the push rod 52 located on the upper layer, and the sliding block 7 is lifted up at the highest end by the spring 72. When the push rod 52 on the upper layer contacts the side edge of the top of the special-shaped material, the bottom of the output end of the hydraulic cylinder 3 presses against the special-shaped material and may contact the push rod 52. In order to prevent the push rod 52 from affecting the falling of the hydraulic cylinder, a sliding block 71 that can slide up and down is provided at the end of the push rod 52. The sliding block 71 does not need to be adjusted in height and can adapt to special-shaped materials of different heights.

[0025] The specific implementation method is as follows: the special-shaped material to be tested is placed in the protective tube 4, and the push rod 52 of the hydraulic chamber 51 is used to support the direction in which the special-shaped material is prone to fall, generally diagonally, for example (such as Figure 1Viewpoint): When the special-shaped material is prone to tipping to the right after being stressed, the upper right corner and the lower left corner of the special-shaped material are supported. When the special-shaped material is stressed, the stress-bearing capacity of the special-shaped material can be tested. When the push rod supports the special-shaped material, the valve 62 is closed to prevent the push rod from collapsing, and the setting of the sliding block enables the upper push rod not to affect the descent of the hydraulic cylinder 3 when contacting the special-shaped material.

[0026] The above-described embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An apparatus for detecting the strength of a special-shaped rigid material, characterized in that: It includes a base (1) and a pressure-bearing platform (2) arranged on the surface of the base (1). A hydraulic cylinder (3) that outputs downward is also arranged above the base (1). The upper surface of the pressure-bearing platform (2) has a protective cylinder (4). An extension part (5) is arranged on the side surface of the protective cylinder (4) in the radial direction. Each extension part (5) has two pressing structures distributed up and down. Among them, the pressing structure includes a push rod (52) extending into the protective cylinder (4). A fixing block (8) is arranged at the end of the push rod (52) located in the lower layer, and a sliding block (7) that slides vertically is arranged at the end of the push rod (52) located in the upper layer.

2. The strength detection device for a special-shaped rigid material according to claim 1, characterized in that: The pressing structure is hydraulically driven. The pressing structure includes a hydraulic cavity (51) opened in the extension part (5) and a hydraulic plate (53) arranged in the hydraulic cavity (51). The hydraulic plate (53) is connected to the push rod (52).

3. The strength detection device for a special-shaped rigid material according to claim 2, characterized in that: The hydraulic cavity (51) is pressurized by a pumping component (63) and a pressure pipe (61), and an electrically controlled valve (62) is arranged at the inlet of each hydraulic cavity (51).

4. An anisotropic rigid material strength detection device according to claim 1, characterized in that: The pressing structure is driven by a thread.

5. An apparatus for detecting the strength of a special-shaped rigid material according to any one of claims 1-4, characterized in that: The sliding block (7) has a sliding strip (71). A side groove (521) corresponding to the sliding strip (71) is arranged at the end of the push rod (52) located in the upper layer, and the sliding block (7) is jacked up to the highest end by a spring (72).

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