Sand crushing index measuring device

Abstract

The utility model discloses a sand crushing index measuring device which comprises a press machine and a sample mold, the sample mold comprises a pressurizing block and four test cylinders matched with the pressurizing block, and the pressurizing block is fixedly installed at the bottom of an upper pressing head of the press machine; a supporting seat is fixedly connected to the top of a workbench of the press, a top plate is fixedly connected to the top of the supporting seat, a pneumatic push-pull assembly is installed on the side face of the top plate, and a movable plate and a movable frame are fixedly installed at the movable end of the pneumatic push-pull assembly. According to the utility model, through the arrangement of the pressurizing block, the test barrels, the supporting seat, the top plate, the pneumatic push-pull assembly, the movable plate, the movable frame, the sieve tray, the supporting plate and the collecting barrel, when the sand crushing index is measured, four samples are respectively placed in the four test barrels, and then are sequentially and automatically crushed and sieved, so that the manual operation amount is reduced, time and labor are saved, and the working efficiency is improved. And the sand crushing index determination efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand crushing determination technical field especially, relate to a sand crushing index determination device. BACKGROUND

[0002] Sand crushing determination is mainly used for evaluating the firmness and durability of sand, ensuring the stability and safety of buildings. By determining the crushing index of sand, its performance under stress can be understood, especially in construction engineering, the use of sand with qualified crushing index can ensure the stability and safety of buildings.

[0003] Currently, in the sand crushing index determination experiment, four kinds of sample preparation are required, after the sample preparation is completed, it is poured into the test mold, then the test mold is placed on the press, then the extrusion operation is carried out, after completion, the sample is taken out, poured into the lower limit sieve hole, finally the sieve residue of the sample is weighed and calculated to obtain the crushing index, the whole operation process needs manual operation, time and effort, the efficiency is reduced, therefore, a sand crushing index determination device is proposed. UTILITY MODEL CONTENT

[0004] The utility model discloses a sand crushing index determination device to solve the shortcomings in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a sand crushing index determination device, comprising a press and a sample mold, the sample mold comprises a pressing block and four matched test tubes, and the pressing block is fixedly installed on the bottom of the press head of the press;

[0006] The top of the support seat is fixedly connected with a top plate, and the side surface of the top plate is provided with a pneumatic push-pull assembly, the movable end of the pneumatic push-pull assembly is fixedly provided with a movable plate and a movable frame, the movable plate is located above the top plate and is fixedly sleeved on the outer surface of the plurality of test tubes, and the movable frame is located below the top plate, and four sieve discs are positioned and placed on the movable frame;

[0007] The outer surface of the press is fixedly connected with a supporting plate on one side, and the supporting plate is provided with a collecting barrel on the top.

[0008] Further, the pneumatic push-pull assembly comprises a cylinder, and the cylinder is fixedly installed on one side of the outer surface of the top plate, the movable end of the cylinder is fixedly provided with a sliding seat, and the sliding seat is slidingly connected between the top plate and fixedly connected between the movable plate and the movable frame.

[0009] Further, the bottoms of the four test tubes are fixedly connected with an open wear-resistant rubber pad, four through holes are formed in the top of the open wear-resistant rubber pad and reach the bottom, the through holes are matched with the test tubes, and the open wear-resistant rubber pad is fixedly installed on the bottom of the movable plate and is attached to the top plate.

[0010] Further, the top of the movable frame is uniformly provided with four positioning and placing grooves which reach the bottom and are matched with the sieve plates.

[0011] Further, the four sieve plates are respectively located directly below the adjacent test tubes.

[0012] Further, the pore sizes of the sieve nets in the four sieve plates decrease from left to right.

[0013] The beneficial effects of the sand crushing index measuring device are as follows:

[0014] When the sand crushing index measuring device is used, four kinds of test samples are placed in the four test tubes, and then crushing and sieving operations are automatically performed in sequence, so that the amount of manual operation is reduced, time and labor are saved, and the sand crushing index measuring efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the present application, the following will briefly introduce the drawings needed in the specific implementation manner. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can also be obtained according to these drawings without creative labor for those skilled in the art.

[0016] Fig. 1 The utility model discloses a perspective view;

[0017] Fig. 2 The utility model discloses a front view;

[0018] Fig. 3 The utility model discloses a movable frame sectional view;

[0019] Fig. 4 The utility model discloses a movable plate and test tube sectional view.

[0020] The following are the symbols of the drawings:

[0021] 1, press;2, cylinder;3, movable frame;4, test tube;5, sieve plate;6, pressurizing block;7, top plate;8, collecting barrel;9, supporting plate;10, sliding seat;11, supporting seat;12, positioning and placing groove;13, movable plate;14, rubber pad. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0023] As shown in Figs. 1 to 4 A sand crushing index measuring device is related, comprising a press 1 and a sample mold, the sample mold comprises a pressing block 6 and four sample tubes 4 matched with the pressing block 6, and the pressing block 6 is fixedly installed on the bottom of the press head of the press 1.

[0024] The top of the workbench of the press 1 is fixedly connected with a support seat 11, the top of the support seat 11 is fixedly connected with a top plate 7, the side surface of the top plate 7 is installed with a pneumatic push-pull assembly, the movable end of the pneumatic push-pull assembly is fixedly installed with a movable plate 13 and a movable frame 3, the pneumatic push-pull assembly comprises a cylinder 2, the cylinder 2 is fixedly installed on one side of the outer surface of the top plate 7, the movable end of the cylinder 2 is fixedly installed with a sliding seat 10, the sliding seat 10 is slidingly connected between the top plate 7 and fixedly connected between the movable plate 13 and the movable frame 3, the top plate 7 has a limiting effect on the sliding seat 10, which can ensure the stability of the movement of the sliding seat 10.

[0025] The movable plate 13 is located above the top plate 7 and is fixedly sleeved on the outer surface of the plurality of sample tubes 4, the bottom of the four sample tubes 4 is fixedly connected with an open wear-resistant rubber pad 14, the top of the open wear-resistant rubber pad 14 is provided with four through holes penetrating to the bottom, the through holes are matched with the sample tubes 4, the open wear-resistant rubber pad 14 is fixedly installed on the bottom of the movable plate 13 and is attached to the top plate 7, the thickness of the open wear-resistant rubber pad 14 is less than one millimeter, which avoids affecting the sand crushing measurement.

[0026] The movable frame 3 is located below the top plate 7, four sieve plates 5 are positioned and placed on the movable frame 3, the top of the movable frame 3 is uniformly provided with four positioning and placing grooves 12 penetrating to the bottom, the positioning and placing grooves 12 are matched with the sieve plates 5, the positioning and placing grooves 12 are beneficial to the positioning and placing of the sieve plates 5, the movable frame 3 drives the sieve plates 5 to move, the four sieve plates 5 are respectively located directly below the adjacent sample tubes 4, which is beneficial to the sample in the sample tube 4 to fall into the sieve plate 5 under the action of gravity, the pore size of the sieve net in the four sieve plates 5 decreases from left to right in turn, the pore size of the sieve net in the sieve plate 5 is matched with the sand particle size, which is beneficial to the sieving operation.

[0027] The outer surface side of the press 1 is fixedly connected with a supporting plate 9, and the top of the supporting plate 9 is placed with a collecting barrel 8, and the supporting plate 9 is welded on the press 1, and has a supporting effect on the collecting barrel 8, and is favorable for the placement of the collecting barrel 8, and the collecting barrel 8 can collect the crushed sand, so as to avoid scattering.

[0028] Working principle: after the operator prepares four test samples, pours them into four test tubes 4 in turn, and then places four sieve plates 5 on four positioning slots 12 in turn, places the collecting barrel 8 on the top of the supporting plate 9, and then starts the cylinder 2, the cylinder 2 drives the sliding seat 10 to move along the top plate 7, and the sliding seat 10 drives the movable plate 13 and the movable frame 3 connected thereto to move, thereby driving the test tube 4 and the sieve plate 5 to move, when the test tube 4 at the end moves to the position directly below the pressing block 6, the cylinder 2 drives the test tube 4 and the sieve plate 5 to move back and forth at high frequency multiple times through each component, so that the sand is uniformly distributed in the test tube 4;

[0029] The press 1 operates, the press 1 controls the pressing block 6 to descend, and the pressing block 6 extrudes the sand in the test tube 4, after the crushing operation is completed, the pressing block 6 is reset under the action of the press 1, and the above moving operation is repeated;

[0030] When the end test tube 4 moves out of the range of the top plate 7, the sand in the test tube 4 will fall on the sieve plate 5 below under the action of gravity, and after the high-frequency action of the above-mentioned cylinder 2, the sieve plate 5 can drive the sieve plate 5 to sieve the sand, so as to realize the sieving operation, and the crushed sand falls into the collecting barrel 8;

[0031] After all the test samples complete the sieving operation, the operator removes the sieve plate 5, pours the test sample, weighs it, and finally calculates it.

[0032] It should be noted that the model of the cylinder 2 is SC200-1000, which is a high-frequency cylinder, and compared with the ordinary cylinder, the high-frequency cylinder has higher working frequency and shorter movement time. The cylinder 2 is controlled by the existing electromagnetic valve, and the existing electromagnetic valve is electrically connected with the controller matched with the press 1, so as to control the overall operation. The specific data analysis and processing to further realize the control function are methods that can be realized by those skilled in the art based on common knowledge, and these methods are not within the scope of the present scheme. The above description only illustrates the beneficial effects that can be achieved by improving the hardware structure based on common knowledge.

[0033] The preferred embodiments disclosed above are only used to help describe the utility model. The preferred embodiments do not describe all the details and do not limit the utility model to the specific implementation. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principle and practical application of the utility model, so that the person skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A device for determining the crush index of a sand, comprising a press (1) and a sample mould, characterised in that: The sample mold comprises a pressing block (6) and four matched test tubes (4), and the pressing block (6) is fixedly installed on the bottom of the pressure head of the press (1); The top of the support seat (11) is fixedly connected with the top plate (7), the side of the top plate (7) is provided with the pneumatic push-pull assembly, the movable end of the pneumatic push-pull assembly is fixedly installed with the movable plate (13) and the movable frame (3), the movable plate (13) is located above the top plate (7) and is fixedly sleeved on the outer surface of the plurality of test tubes (4), and the movable frame (3) is located below the top plate (7), and the four sieve plates (5) are positioned and placed on the movable frame (3); The outer surface of the press (1) is fixedly connected with the supporting plate (9), and the collecting barrel (8) is placed on the top of the supporting plate (9).

2. A device for determining a crush index of a sand according to claim 1, characterized in that: The pneumatic push-pull assembly comprises a cylinder (2), and the cylinder (2) is fixedly installed on one side of the outer surface of the top plate (7), the movable end of the cylinder (2) is fixedly installed with the sliding seat (10), and the sliding seat (10) is slidingly connected with the top plate (7) and fixedly connected with the movable plate (13) and the movable frame (3).

3. A device for determining a crush index of a sand according to claim 1, characterized in that: The bottom of the four test tubes (4) is fixedly connected with the open wear-resistant rubber pad (14), the top of the open wear-resistant rubber pad (14) is provided with four through holes penetrating to the bottom, the through holes are matched with the test tubes (4), and the open wear-resistant rubber pad (14) is fixedly installed on the bottom of the movable plate (13) and is attached to the top plate (7).

4. A device for determining a crush index of a sand according to claim 1, characterized in that: The top of the movable frame (3) is uniformly provided with four positioning and placing grooves (12) penetrating to the bottom, and the positioning and placing grooves (12) are matched with the sieve plates (5).

5. A device for determining a crush index of a sand according to claim 1, characterized in that: The four sieve plates (5) are respectively located below the adjacent test tubes (4).

6. A device for determining a crush index of a sand according to claim 1, characterized in that: The pore size of the sieve mesh in the four sieve plates (5) decreases from left to right.

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