CN218766419U - A bending test machine - Google Patents

Abstract

The utility model discloses an anti-bending testing machine, which comprises a press and an anti-bending fixture, and the anti-bending fixture is detachably connected with the press; the anti-bending fixture includes a support seat and a pressing assembly arranged on the top of the support seat; The top plate and the bottom plate arranged up and down oppositely and the support member connected between one side of the top plate and the bottom plate, the top plate, the bottom plate and the support member are integrally arranged; the upper surface of the bottom plate is detachably installed with a square support plate, and the two ends of the support plate are arranged There is a supporting column extending along the width direction of the supporting plate, one end of the supporting plate is provided with a positioning end plate, and one side of the supporting plate is provided with a positioning column; the pressing assembly is located above the middle position of the two supporting columns, and the pressing assembly includes the pressing shaft and the lower pressing block connected to the bottom end of the lower pressing shaft, the bottom of the lower pressing block is provided with a pressing bar parallel to the support column, and the lower pressing shaft is vertically and movably installed in the top plate.

Description

A bending test machine

technical field

The utility model relates to the technical field of testing equipment for mechanical properties of building materials, in particular to a flexural testing machine.

Background technique

The cement flexural testing machine is mainly used for the flexural strength test of cement. It can be used as equipment for testing the flexural strength of cement in cement plants, construction units, relevant professional colleges, and scientific research units. It can also be used as a compressive test for other non-metallic materials. strength test. During the test, the prefabricated cuboid cement test block is clamped on the anti-flexure fixture and pressure is applied until the cement block breaks, the pressure feedback of the whole process is recorded, and the compressive and flexural data of the corresponding cement are obtained through calculation.

However, the distance between the two supports used to support the cement test block on the existing flexural fixture is fixed, and the standard size of the concrete flexural test block has: 150mmx150mmx600mm and 150mmx150mmx550mm, two when testing test blocks of different lengths The spacing between the seats needs to be adjusted accordingly.

The Chinese utility model patent with the application number CN202120312538.1 discloses a constant stress flexural testing machine with improved scope of application, which includes a workbench, a bottom plate, a first support seat and a second support seat, and the first support seat is horizontally Sliding on one end of the bottom plate, the second support seat is arranged on the other end of the bottom plate, and the bottom plate is arranged on the workbench. When detecting a cement block whose length is shorter than the interval between the first support seat and the second support seat, the first support seat is driven to slide close to the second support seat, so that the space between the first support seat and the second support seat The interval becomes smaller, so that the cement block can be placed on the first support seat and the second support seat, thereby improving the application range of the constant stress flexural testing machine.

In actual use, for testing cement test blocks of standard sizes, the adjustment of the distance between the first support seat and the second support seat of the constant stress flexural testing machine provided by the utility model is complicated. The test needs to withstand a lot of pressure, and a certain amount of deformation will occur on the workbench, bottom plate, first support seat and second support seat, and debris will be generated after the test block is broken, and it is easy to cause the first support seat and the second support seat to be damaged. The second support seat is stuck and cannot be adjusted. Therefore, the constant stress flexural testing machine provided by this utility model is not practical.

Utility model content

Aiming at the defects in the prior art, the utility model provides a flexural testing machine to solve the technical problems raised in the background art.

A kind of anti-bending testing machine, comprises press machine and anti-bending fixture, and described anti-bending fixture is detachably connected with described press machine;

The anti-bending fixture includes a support seat and a pressing assembly arranged on the top of the support seat; the support seat includes a top plate and a bottom plate opposite to each other up and down and a support member connected between one side of the top plate and the bottom plate, so The above-mentioned top plate, bottom plate and support are integrally arranged;

A square support plate is detachably installed on the upper surface of the base plate, support columns extending along the width direction of the support plate are provided at both ends of the support plate, and a positioning end plate is provided at one end of the support plate. One side of the support plate is provided with a positioning column;

The pressing assembly is located above the middle position of the two support columns, the pressing assembly includes a pressing shaft and a pressing block connected to the bottom end of the pressing shaft, the bottom of the pressing block is provided with a The column is parallel to the pressing bar, and the said lower pressing shaft is vertically and movablely pierced in the said top plate.

Further, first insertion holes are distributed on the support plate, and first pins extending vertically are arranged on the upper surface of the bottom plate, and the first pins are inserted into the first insertion holes.

Further, the upper surfaces of both ends of the support plate have installation grooves extending along the width direction, the support columns are arranged in the installation grooves, and the upper surfaces of the support columns protrude from the top opening plane of the installation grooves. set up.

Further, the support column is detachably connected to the support plate through bolts;

The free ends of the bolts penetrate horizontally from the end surface of the support plate and then pass out from the installation slots, and the free ends of the bolts abut against the outer wall of the support column.

Further, the top end of the lower pressing shaft is provided with a top end plate.

Further, a spring is provided between the top end plate and the top plate, and the spring is sleeved on the pressing down shaft.

Further, the bottom of the bottom plate is provided with a second pin inserted into the press, and the second pin extends vertically downward.

The beneficial effects of the utility model are reflected in:

The anti-bending testing machine provided by the utility model, the support plate of the anti-bending fixture that it is equipped with can be replaced according to the size of the standard cement test block to be tested, two support plates can be equipped, and the distance between the two support columns on the support plate is Standard, two support plates are used to support standard cement test blocks of different sizes. The support plate and the bottom plate of the support seat are easily matched, and the replacement is convenient and quick.

Moreover, the anti-bending fixture and the press are detachable, and the press can also be used in conjunction with the anti-pressure fixture, which improves the utilization rate of the press and reduces waste of equipment resources.

Description of drawings

In order to more clearly illustrate the specific implementation of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the specific implementation or the prior art. Throughout the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, elements or parts are not necessarily drawn in actual scale.

Fig. 1 is the structural representation of a kind of flexural testing machine that the utility model embodiment provides;

Fig. 2 is a structural schematic diagram of a flexural fixture of a flexural testing machine provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of the structure of the support plate provided by the embodiment of the present invention;

Fig. 4 is the second schematic diagram of the structure of the support plate provided by the embodiment of the present invention.

Detailed ways

Embodiments of the technical solutions of the present utility model will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present utility model more clearly, so they are only examples, and should not be used to limit the protection scope of the present utility model.

It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

As shown in FIGS. 1-4 , a flexural testing machine provided by the utility model includes a press 1 and a flexural fixture 2 . The press 1 includes a machine table 18, a hydraulic cylinder installed in the machine table 18, a bearing platform 19 installed on the top of the hydraulic cylinder, and a crossbeam 20 installed on the top of the machine table 18. A pressure sensor 21 is arranged at the middle position of the bottom of the crossbeam 20. The bottom of the sensor 21 is fixedly provided with a lower pressure column 22, and the lower pressure column 22, the pressure sensor 21 and the bearing platform 19 are coaxially arranged.

The anti-bending jig 2 is used to support a cement test block of a standard size, and the anti-bending jig 2 includes a support base 3 and a pressing assembly arranged on the top of the support base 3 . The support seat 3 includes a top plate and a bottom plate which are arranged up and down oppositely and a support piece connected between one side of the top plate and the bottom plate, and the top plate, the bottom plate and the support piece are integrally arranged.

The upper surface of the bottom plate is detachably installed with a square support plate 4, and the two ends of the support plate 4 are provided with support columns 5 extending along the width direction of the support plate 4, and one end of the support plate 4 is provided with a positioning end plate 6, and the support plate 4 One side is provided with positioning column 7. The support column 5 is used to support the cement test block. During the test, one end of the cement test block is placed on the positioning end plate 6, and one side of the cement test block is placed on the positioning column 7 to complete the positioning of the cement test block. The operation is convenient and quick. Two support plates 4 are configured, and the standard spacing between the support columns 5 on the two support plates 4 is different. The two support plates 4 are respectively used to support cement test blocks with dimensions of 150mmx150mmx600mm and 150mmx150mmx550mm.

Specifically, first sockets 11 are distributed on the support plate 4, and first pins 12 extending vertically are arranged on the upper surface of the bottom plate, and the first pins 12 are inserted in the first sockets 11, thereby stabilizing the support plate 4. Mounted on the base plate.

Both ends of the support plate 4 have installation grooves 13 extending in the width direction on the upper surface, the support column 5 is arranged in the installation groove 13, and the upper surface of the support column 5 protrudes from the top opening of the installation groove 13 and is arranged on a plane. The support column 5 is detachably connected to the support plate 4 through bolts 14, which facilitates the replacement of the support column 5 after multiple uses without the need to replace all the support plates 4. The free ends of the bolts 14 penetrate horizontally from the end surface of the support plate 4 and pass out from the mounting groove 13 , and the free ends of the bolts 14 abut against the outer wall of the support column 5 .

The pressing assembly is located above the middle position of the two supporting columns 5. The pressing assembly includes the pressing shaft 8 and the pressing block 9 connected to the bottom of the pressing shaft 8. The bottom of the pressing block 9 is provided with a pressing bar 10 parallel to the supporting column 5. The lower pressing shaft 8 is vertically and movablely worn in the top plate. The top end of the lower pressing shaft 8 is provided with a top end plate 15, and the top end plate 15 will contact with the lower end surface of the lower pressing column 22 when the hydraulic cylinder pushes up. A spring 16 is arranged between the top plate 15 and the top plate, and the spring 16 is sheathed on the lower pressing shaft 8 . The spring 16 is in a compressed state, so that the pressing assembly is in a state away from the support plate 4 under normal conditions.

In this embodiment, the anti-bending fixture 2 is detachably connected to the bearing platform 19 of the press 1 . The bottom of the bottom plate is provided with a second pin 17 plugged with the press 1, and the second pin 17 extends vertically downward. The second pin 17 is inserted into the second insertion hole on the carrying platform 19 , so that the support base 3 can be stably installed on the carrying platform 19 .

In summary, in the flexural testing machine provided by the utility model, the supporting plate of the flexural fixture equipped with it can be replaced according to the size of the standard cement test block to be tested. Two supporting plates can be equipped, and two The spacing of the support columns is standard, and two support plates are used to support standard cement test blocks of different sizes. The support plate and the bottom plate of the support seat are easily matched, and the replacement is convenient and quick.

Moreover, the anti-bending jig and the press are detachable, and the press can also be used in conjunction with the anti-compression jig, which improves the utilization rate of the press and reduces waste of equipment resources.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand : It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions depart from the various embodiments of the present invention The scope of the technical solution shall be included in the scope of the claims and description of the present utility model.

Claims (7)

1. The utility model provides an anti testing machine that rolls over, includes press (1) and anti anchor clamps (2) of rolling over, its characterized in that: the anti-bending clamp (2) is detachably connected with the press machine (1);

the anti-bending clamp (2) comprises a supporting seat (3) and a pressing component arranged at the top of the supporting seat (3); the supporting seat (3) comprises a top plate and a bottom plate which are oppositely arranged up and down and a supporting piece connected between one sides of the top plate and the bottom plate, and the top plate, the bottom plate and the supporting piece are integrally arranged;

a square supporting plate (4) is detachably mounted on the upper surface of the bottom plate, supporting columns (5) extending along the width direction of the supporting plate (4) are arranged at two ends of the supporting plate (4), a positioning end plate (6) is arranged at one end of the supporting plate (4), and positioning columns (7) are arranged at one side of the supporting plate (4);

the lower pressing component is located two and is arranged above the middle position of the supporting column (5), the lower pressing component comprises a lower pressing shaft (8) and a lower pressing block (9) connected to the bottom end of the lower pressing shaft (8), a pressing rod (10) parallel to the supporting column (5) is arranged at the bottom of the lower pressing block (9), and the lower pressing shaft (8) is vertical and movably arranged in the top plate in a penetrating mode.

2. The bending resistance testing machine according to claim 1, wherein: first jacks (11) are distributed in the supporting plate (4), a first plug pin (12) which vertically extends is arranged on the upper surface of the bottom plate, and the first plug pin (12) is inserted into the first jacks (11).

3. The bending resistance testing machine according to claim 1, wherein: all have mounting groove (13) that extend along width direction on the both ends upper surface of backup pad (4), support column (5) set up in mounting groove (13), the upper surface protrusion of support column (5) mounting groove (13) open-top plane sets up.

4. A bending test machine according to claim 3, characterized in that: the supporting column (5) is detachably connected with the supporting plate (4) through a bolt (14);

the free end of the bolt (14) penetrates out of the mounting groove (13) after horizontally penetrating through the end face of the supporting plate (4), and the free end of the bolt (14) abuts against the outer wall of the supporting column (5).

5. The bending resistance testing machine according to claim 1, wherein: the top end plate (15) is arranged at the top end of the lower pressing shaft (8).

6. The bending resistance testing machine according to claim 5, wherein: a spring (16) is arranged between the top end plate (15) and the top plate, and the spring (16) is sleeved on the lower pressing shaft (8).

7. The bending resistance testing machine according to claim 1, wherein: the bottom plate bottom be provided with second bolt (17) of press (1) grafting, second bolt (17) vertical downwardly extending sets up.

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