CN210982488U - Be used for brazilian splitting testing machine sample to send into automatically and levelling device - Google Patents

Be used for brazilian splitting testing machine sample to send into automatically and levelling device Download PDF

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Publication number
CN210982488U
CN210982488U CN201921832888.XU CN201921832888U CN210982488U CN 210982488 U CN210982488 U CN 210982488U CN 201921832888 U CN201921832888 U CN 201921832888U CN 210982488 U CN210982488 U CN 210982488U
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test piece
connecting piece
collecting
box
splitting
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CN201921832888.XU
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Chinese (zh)
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崔磊
刘少伟
贾后省
付孟雄
杨云飞
高建军
郭胜
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Henan University of Technology
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Henan University of Technology
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Abstract

The utility model relates to a be used for brazilian splitting testing machine sample to send into automatically and levelling device, including the splitting anchor clamps, still include the automatic leveling displacement sensor device, automatic test piece receiving and releasing device, the central control unit that set up at splitting anchor clamps both ends, the automatic leveling displacement sensor device includes sensor connecting piece, hollow spliced pole, presss from both sides tight transmission loop bar and motor power A, the sensor connecting piece is connected with the splitting anchor clamps through hollow spliced pole, the inside of sensor connecting piece is provided with presss from both sides tight transmission loop bar, the sensor connecting piece outside is connected with motor power A, it is provided with displacement sensor to press from both sides tight transmission loop bar; the automatic test piece collecting and releasing device comprises a test piece collecting and releasing box, a device supporting frame, a collecting and releasing box connecting piece and a power motor B, wherein the test piece collecting and releasing box is arranged at the bottom in the splitting clamp, and the collecting and releasing box connecting piece is connected with the test piece collecting and releasing box, the device supporting frame and the power motor B; the utility model has the advantages of reduce the work efficiency of avoidable artificial influence, improvement testing machine.

Description

Be used for brazilian splitting testing machine sample to send into automatically and levelling device
Technical Field
The utility model belongs to measure test piece tensile strength's experimental apparatus, concretely relates to be used for brazilian splitting test machine sample to send into automatically with levelling device.
Background
The Brazilian splitting experiment is called as a Brazilian disc splitting experiment, is widely applied to rock mechanics and engineering, can be used for measuring the tensile strength, the elastic modulus, the fracture toughness and the like of rock, and is influenced by various conditions and factors in the process of the Brazilian splitting experiment.
At present, two persons are usually needed to complete a Brazilian splitting experiment, one person is responsible for taking and placing a test piece and adjusting displacement sensors at two ends of the test piece, the other person is responsible for inputting required data on a computer by using special software so as to control a testing machine to obtain a required experiment result, but the situation that the test piece cannot be centered or the test piece deviates when the test piece is manually placed and the situation that the magnitude and the magnitude of a displacement value often occur when the displacement sensor is adjusted usually occur, although the experiment requirement is within a specified range, the maximum value and the minimum value within the range can have certain influence, and sometimes, the numerical value can also change due to slight vibration after the displacement is adjusted; therefore, it is necessary to provide an automatic sample feeding and leveling device for brazilian cleavage testing machine, which can reduce the human influence and improve the working efficiency of the testing machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, and provide a what reduce avoidable artificial influence, improve the work efficiency of testing machine is used for brazilian splitting test machine sample to send into automatically with levelling device.
The purpose of the utility model is realized like this: a device for automatically feeding and leveling a sample of a Brazilian splitting testing machine comprises a splitting clamp, and further comprises automatic leveling displacement sensor devices arranged at two ends of the splitting clamp, an automatic sample collecting and releasing device placed at the bottom in the splitting clamp, and a central control device, wherein each automatic leveling displacement sensor device comprises a sensor connecting piece, a hollow connecting column, a clamping transmission sleeve rod and a power motor A, each sensor connecting piece is connected with the splitting clamp through the hollow connecting column, the clamping transmission sleeve rod is arranged in each sensor connecting piece, the power motor A is connected to the outer side of each sensor connecting piece, and a displacement sensor is arranged in each clamping transmission sleeve rod; the automatic test piece collecting and releasing device comprises a test piece collecting and releasing box, a device supporting frame, a collecting and releasing box connecting piece and a power motor B, wherein the test piece collecting and releasing box is arranged at the bottom in the splitting clamp, the test piece collecting and releasing box is positioned above the device supporting frame and connected through a collecting and releasing box connecting piece, and the collecting and releasing box connecting piece is connected with the test piece collecting and releasing box, the device supporting frame and the power motor B; the central control device comprises a connecting circuit for connecting the power motor A and the power motor B and a central controller.
The hollow connecting column is connected with a round tube on the splitting clamp, evenly distributed screw holes are formed in the hollow connecting column, and corresponding screw holes are also formed in the round tube.
The clamping transmission sleeve rod is a hollow cylinder, a through screw hole is formed in the cylinder body, a rectangular convex groove is formed in the outer surface of the cylinder body, a toothed belt is arranged on the other side, opposite to the convex groove, of the cylinder body, and the toothed belt is matched with a long gear on the power motor A.
The sensor connecting piece is a hollow cylinder, the upper surface of the sensor connecting piece is provided with an opening, the inner wall of the sensor connecting piece is provided with a groove, and the groove is matched with a convex groove on the clamping transmission loop bar.
The protruding rectangles are arranged on two sides of the bottom of the test piece taking and placing box, the rack is arranged on the upper surface of the protruding rectangle on one side, the protruding rectangle on the other side is a plane, and a disc test piece is arranged in the test piece taking and placing box.
Two vertical upward slideways are arranged on the device supporting frame and are respectively positioned on two sides of the test piece taking and placing box, and the head of the device supporting frame is fixedly connected with the sensor connecting piece.
The power motor B is provided with a short gear which is matched with the rack, a sliding groove is formed in the box taking and placing connecting piece, the sliding groove is matched with the rectangular protrusions on the two sides of the box taking and placing box through the test piece, a sliding block is further arranged on the front portion of the sliding groove, and the sliding block is matched with a sliding way on the device supporting frame.
The two automatic leveling displacement sensor devices are symmetrically arranged on two sides of the splitting clamp.
The number of the power motors A is two, the number of the power motors B is one, and the power motors A and the power motors B are in an automatic locking state in a static state.
The method for automatically feeding and leveling the test sample of the Brazilian splitting tester comprises the following steps:
step 1): firstly, the device is installed, two hollow connecting columns are respectively sleeved on round pipes which are arranged on two sides of a splitting clamp and used for fixing displacement sensors, then the two displacement sensors respectively penetrate through the hollow parts of the nut-free ends of two clamping transmission sleeve rods, the tail ends of the displacement sensors are fixed on the screw-containing ends of the clamping transmission sleeve rods, the displacement sensors are arranged on the hollow parts of the clamping transmission sleeve rods, then the exposed parts of the ends of the two displacement sensors are respectively inserted into the hollow parts which are arranged on two sides of the splitting clamp and used for fixing the round pipes of the displacement sensors, then two ends of the hollow connecting columns are respectively sleeved on a cylinder of a sensor connecting piece and the round pipes on one side of the splitting clamp, finally headless screws at two ends of the hollow connecting columns are screwed, and the installation processes of two;
step 2): after the connection of the device is completed, local adjustment is started, the bottom surface of the test piece taking and placing box and a bottom surface platform in the splitting clamp are positioned on the same horizontal plane by adjusting the position relation between a sliding block on a connecting piece of the taking and placing box and a sliding way on a supporting frame of the device, the test piece taking and placing box is placed at a proper position so that the test piece taking and placing box can move on the platform, and then the displacement sensors on the two sides of the splitting clamp are adjusted to the proper position by controlling a power motor A to rotate;
step 3): a group of disc test pieces are respectively put into lattices of a test piece taking and placing box according to an experiment setting sequence, after the test pieces are placed, the number of the test piece is input on a computer, parameters such as the size of the test piece and the like can be tested, after the experiment is started, a power motor B of the test piece taking and placing box is controlled to rotate clockwise to drive the test piece taking and placing box to send a first test piece to the position under a stress application piston rod, then a power motor A of a sensor is controlled to rotate clockwise to drive a probe of a displacement sensor to gradually approach the test piece, the test piece is automatically stopped when the displacement sensor reaches a preset value, after the displacement sensor is stabilized, the stress application piston rod of a Brazilian cleavage experiment machine descends to pressurize the test piece until the test piece is fractured to achieve the purpose of the experiment, the stress application piston rod is automatically lifted, and when the stress application piston rod, after returning to the original position, controlling a power motor B of the test piece taking and placing box to rotate clockwise to drive the test piece taking and placing box to push forwards to send a second test piece to the position under the stress application piston rod, starting to repeat the loading process of the first test piece, and circulating the process until the test piece in the test piece taking and placing box is pressed;
step 4): after the test piece in the test piece taking and placing box is pressed, a power motor B for controlling the test piece taking and placing box rotates anticlockwise to drive the test piece taking and placing box to withdraw, then the pressed test piece is taken out, fragments in the test piece taking and placing box are cleaned up, a next group of test pieces are loaded, the steps are repeated, and the whole test piece Brazilian cleavage experiment is completed.
The utility model has the advantages that:
1. because need be responsible for alone when doing brazilian splitting experiment and get the displacement sensor who puts the test piece and adjust the test piece both ends, but can appear the test piece generally and can not take place to squint between two parties or the test piece when artificially putting the test piece, often the displacement value appears when adjusting displacement sensor big or small, although the experiment requirement just can in the within range of regulation, but maximum value and minimum value in the within range also can have certain influence, and sometimes have slight vibrations to also make numerical value change after adjusting the displacement, through the application of automatic leveling displacement sensor device, just can avoid the production of these influences.
2. At doing brazilian splitting experiment usually, the quantity of disc test piece is more, need do for a long time, and the experimenter appears tired very easily under this condition, may appear some misoperation, causes the influence to the experimental result, and the device can compensate the reduction experimenter's that these defects can be great simultaneously amount of labour.
3. In order to reduce the avoidable artificial influence and improve the working efficiency of the testing machine, and simultaneously, apply related subject knowledge of structural mechanics, material mechanics and the like, a device for automatically feeding and leveling a Brazilian splitting testing machine sample and an operation method thereof are developed.
In conclusion, the utility model has reasonable design, is convenient to operate and install, can effectively reduce the influence of human factors on the experimental result, improves the efficiency of Brazilian cleavage experiment and reduces the labor capacity of experimenters; the utility model has the advantages of a reduce the work efficiency of avoidable artificial influence, improvement testing machine.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the device principle of the local structure of the present invention.
Figure 3 is the utility model discloses test piece is got and is put box structure sketch map.
Fig. 4 is a schematic view of the splitting jig of the present invention.
Fig. 5 is a schematic structural diagram of the displacement sensor of the present invention.
Fig. 6 is a schematic view of the connecting member structure of the taking and placing box of the present invention.
Fig. 7 is a schematic diagram of the structure of the sensor connector of the present invention.
Fig. 8 is a schematic view of the hollow connecting column of the present invention.
Fig. 9 is a schematic structural diagram of the power motor a of the present invention.
Fig. 10 is a schematic structural diagram of a power motor B of the present invention.
Fig. 11 is a schematic view of the structure of the clamping transmission sleeve rod of the present invention.
Fig. 12 is a schematic view of the structure of the device supporting frame of the present invention.
Fig. 13 is a schematic diagram of the connection structure of the central controller of the present invention.
In the figure, the splitting clamp 1, a splitting clamp 2, a disc test piece 3, a displacement sensor 4, a hollow connecting column 5, a clamping transmission sleeve rod 6, a power motor A7, a sensor connecting piece 8, a circular tube 9, a screw hole 10, a convex groove 11, a toothed belt 12, a long gear 13, a groove 14, a test piece taking and placing box 15, a power motor B16, a taking and placing box connecting piece 17, a device supporting frame 18, a rack 19, a plane 20, a short gear 21, a sliding groove 22, a sliding channel 23, a connecting circuit 24, a central controller 25 and a sliding block are arranged.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
Example 1
As shown in fig. 1-13, an automatic sample feeding and leveling device for a brazilian splitting tester comprises a splitting clamp 1, and further comprises automatic leveling displacement sensor devices arranged at two ends of the splitting clamp 1, an automatic sample collecting and releasing device arranged at the bottom in the splitting clamp 1, and a central control device, wherein each automatic leveling displacement sensor device comprises a sensor connecting piece 7, a hollow connecting column 4, a clamping transmission sleeve rod 5 and a power motor a6, the sensor connecting piece 7 is connected with the splitting clamp 1 through the hollow connecting column 4, the clamping transmission sleeve rod 5 is arranged in the sensor connecting piece 7, the power motor a6 is connected to the outer side of the sensor connecting piece 7, and a displacement sensor 3 is arranged in the clamping transmission sleeve rod 5; the automatic test piece collecting and releasing device comprises a test piece collecting and releasing box 14, a device supporting frame 17, a collecting and releasing box connecting piece 16 and a power motor B15, wherein the test piece collecting and releasing box 14 is arranged at the bottom in the splitting clamp 1, the test piece collecting and releasing box 14 is positioned above the device supporting frame 17 and connected through the collecting and releasing box connecting piece 16, and the collecting and releasing box connecting piece 16 is connected with the test piece collecting and releasing box 14, the device supporting frame 17 and the power motor B15; the central control device comprises a connecting line 23 for connecting a power motor A6 and a power motor B15, and a central controller 24.
The hollow connecting column 4 is used for connecting a round tube 8 and a sensor connecting piece 7 which are used for fixing the displacement sensor 3 at two sides of the splitting clamp 1, and four through screw holes 9 are respectively and uniformly distributed at positions 10mm away from the ports at two ends of the hollow connecting column 4 and used for mounting screws so that the splitting clamp 1 is connected and fixed with the automatic leveling displacement sensor device; the clamping transmission sleeve rod 5 is a hollow cylinder, four through screw holes 9 are uniformly distributed at one end of the clamping transmission sleeve rod 5, headless screws are matched with the screw holes and used for clamping the displacement sensor 3, a rectangular convex groove 10 is formed in the outer surface of the clamping transmission sleeve rod, a toothed belt 11 for flattening the arc-shaped outer surface of the clamping transmission sleeve rod is arranged on the other surface, opposite to the convex groove 10, of the clamping transmission sleeve rod, a long gear 12 on a power motor A6 is matched with the toothed belt 11 on the clamping transmission sleeve rod 5, the toothed belt 11 is driven through rotation of the long gear 12, the clamping transmission sleeve rod 5 is enabled to move, and therefore advancing and retreating; the sensor connecting piece 7 is used for connecting and fixing the clamping transmission sleeve rod 5 and the power motor 6, a groove 13 matched with the rectangular convex groove 10 on the clamping transmission sleeve rod 5 is arranged at the connecting part of the sensor connecting piece and the clamping transmission sleeve rod 5, and the groove 13 is used for preventing the clamping transmission sleeve rod 5 from rotating and enabling the clamping transmission sleeve rod to move along the direction of the groove 13; the power motor A6 is the power source of the device, and the forward rotation, the reverse rotation, the fast rotation and the slow rotation of the motor are realized through the given commands of the central control device, and the in and out of the displacement sensor 3 are accurately controlled, so that the displacement sensor 3 is leveled.
The automatic test piece collecting and releasing device comprises a test piece collecting and releasing box 14, a power motor B15, a collecting and releasing box connecting piece 16 and a device supporting frame 17, wherein when a Brazilian splitting experiment is carried out, usually five disc test pieces 2 are used as a group for testing, so the test piece collecting and releasing box 14 is divided into five lattices, each lattice can contain one disc test piece 2, a certain distance is reserved between every two lattices, protruding rectangles which are as long as the test piece collecting and releasing box and have certain width and height are arranged on two sides of the bottom of the test piece collecting and releasing box 14, a rack 18 is arranged on the upper surface of one protruding rectangle, and the other protruding rectangle is a plane; the power motor B15 is provided with a gear 20 matched with the rack 18 at the bottom of the test piece taking and placing box, and the rack 18 is driven by the rotation of the gear 20, so that the test piece taking and placing box 14 moves forwards and backwards along the chute 21 on the taking and placing box connecting piece 16, and finally the test piece is accurately sent to the right lower part of the stress application piston rod; the picking and placing box connecting piece 16 is used for connecting the test piece picking and placing box 14, the power motor B15 and the device supporting frame 17, fixing the test piece picking and placing box 14 to move along the direction of the sliding chute 21, and a slide block 25 with two protruding ends is arranged at the tail end of the picking and placing box connecting piece 16 and used for connecting a slide way 22 on the device supporting frame 17, so that the test piece picking and placing box 14 can move up and down along the slide way 22, and the lower bottom surface of the test piece picking and placing box 14 and the lower bottom surface in the splitting clamp 1 are adjusted to be on the same horizontal plane; the device support frame 17 is mainly used for connecting the automatic leveling displacement sensor device and the automatic test piece collecting and releasing device, and supporting the whole device to keep stable.
The central control device comprises a connecting line 23 and a central controller 24, wherein the connecting line 23 is mainly used for connecting the device, a computer and a Brazilian splitting experiment machine to realize signal transmission; the central controller 24 controls the automatic leveling displacement sensor device and the automatic test piece collecting and releasing device according to a designed program and a command given by a computer, and simultaneously feeds back the real-time situation of the device to the computer to ensure the stable operation of the device.
The device shares three power motors, the types of the three power motors are the same, two power motors A6 are used on the automatic leveling displacement sensor device, and one power motor 15 is used on the automatic test piece collecting and releasing device. This power motor all is the dead state of automatic locking under the static state, can not take place to rotate under the effect of external force to ensure displacement sensor 3 and test piece receive and release the stability of box 14, the principle that power motor A6 drive displacement sensor 3 reaches the numerical value that the experiment set for is as follows: displacement sensor 3 always will show certain numerical value when touching disc test piece 2, makes the difference with the numerical value that the experiment set for with the demonstration numerical value, if go out for positive number then motor power A6 clockwise rotation for displacement sensor 3's numerical value continues to increase, and motor power A6 can reduce the rotational speed when the difference is close to 0, makes displacement sensor 3's numerical value slowly increase, and is 0 up to the difference. When the difference value is negative, the power motor A6 rotates anticlockwise to enable the numerical value of the displacement sensor 3 to be reduced continuously, when the difference value is close to 0, the power motor A6 reduces the rotating speed until the power motor A6 stops rotating when the difference value is 0, and the function needs to be controlled through a program and is mainly realized through a central control device; the utility model has the advantages of a reduce the work efficiency of avoidable artificial influence, improvement testing machine.
Example 2
As shown in fig. 1-13, an automatic sample feeding and leveling device for a brazilian splitting tester comprises a splitting clamp 1, and further comprises automatic leveling displacement sensor devices arranged at two ends of the splitting clamp 1, an automatic sample collecting and releasing device arranged at the bottom in the splitting clamp 1, and a central control device, wherein each automatic leveling displacement sensor device comprises a sensor connecting piece 7, a hollow connecting column 4, a clamping transmission sleeve rod 5 and a power motor a6, the sensor connecting piece 7 is connected with the splitting clamp 1 through the hollow connecting column 4, the clamping transmission sleeve rod 5 is arranged in the sensor connecting piece 7, the power motor a6 is connected to the outer side of the sensor connecting piece 7, and a displacement sensor 3 is arranged in the clamping transmission sleeve rod 5; the automatic test piece collecting and releasing device comprises a test piece collecting and releasing box 14, a device supporting frame 17, a collecting and releasing box connecting piece 16 and a power motor B15, wherein the test piece collecting and releasing box 14 is arranged at the bottom in the splitting clamp 1, the test piece collecting and releasing box 14 is positioned above the device supporting frame 17 and connected through the collecting and releasing box connecting piece 16, and the collecting and releasing box connecting piece 16 is connected with the test piece collecting and releasing box 14, the device supporting frame 17 and the power motor B15; the central control device comprises a connecting line 23 for connecting a power motor A6 and a power motor B15, and a central controller 24.
The method for automatically feeding and leveling the test sample of the Brazilian splitting tester comprises the following steps:
step 1): firstly, the device is installed, two hollow connecting columns 4 are respectively sleeved on circular tubes 8 which are used for fixing displacement sensors 3 and arranged on two sides of a splitting clamp 1, then the two displacement sensors 3 respectively penetrate through hollow parts which are not provided with nut ends of two clamping transmission sleeve rods 5, the tail ends of the displacement sensors 3 are fixed at screw ends of the clamping transmission sleeve rods 5, the displacement sensors 3 are arranged on the hollow parts of the clamping transmission sleeve rods 5, then exposed parts of the ends of the two displacement sensors 3 are respectively inserted into the hollow parts which are used for fixing the circular tubes 8 of the displacement sensors and arranged on two sides of the splitting clamp 1, then two ends of each hollow connecting column 4 are respectively sleeved on a cylinder of a sensor connecting piece 7 and the circular tube 8 on one side of the splitting clamp 1, finally headless screws at two ends of each hollow connecting column 4 are screwed, and the installation process of the two sets of automatic leveling displacement sensor;
step 2): after the connection of the device is completed, local adjustment is started, the position relationship between the slide block 25 on the taking and placing box connecting piece 16 and the slide way 22 on the device supporting frame 17 is adjusted, the bottom surface of the test piece taking and placing box 14 and the bottom surface platform in the cleaving fixture 1 are positioned on the same horizontal plane, meanwhile, the test piece taking and placing box 14 is placed at a proper position so that the test piece taking and placing box 14 can move on the platform, and then the displacement sensors 3 on the two sides of the cleaving fixture 1 are adjusted to proper positions by controlling the rotation of the power motor A6;
step 3): a group of disc test pieces are respectively put into lattices of a test piece taking and placing box 14 according to an experiment setting sequence, after the test pieces are placed, the number of the test piece is input on a computer, parameters such as the size of the test piece and the like can be tested, after the experiment is started, a power motor B15 of the test piece taking and placing box 14 is controlled to rotate clockwise to drive the test piece taking and placing box 14 to send a first test piece to be under a stress application piston rod, then a power motor A6 of a sensor is controlled to rotate clockwise to drive a probe of a displacement sensor 3 to approach the test piece gradually, the test piece is automatically stopped when the displacement sensor 3 reaches a preset value, after the displacement sensor 3 is stabilized, the stress application piston rod of a Brazilian cleavage experiment machine descends to apply pressure to the test piece until the test piece is cleaved to achieve the purpose of the experiment, the stress application piston rod is automatically lifted, when the stress application piston rod returns to the, and after returning to the original position, controlling a power motor B15 of the test piece taking and placing box to rotate clockwise to drive the test piece taking and placing box 14 to push forwards to send a second test piece to the position right below the stress application piston rod, starting to repeat the loading process of the first test piece, and repeating the process until the test piece in the test piece taking and placing box 14 is pressed.
Step 4): after the test piece in the test piece taking and placing box 14 is pressed, a power motor B15 for controlling the test piece taking and placing box rotates anticlockwise to drive the test piece taking and placing box 14 to withdraw, then the pressed test piece is taken out, fragments in the test piece taking and placing box are cleaned up, a next group of test pieces are loaded, the steps are repeated, and the whole test piece Brazilian splitting experiment is completed.

Claims (9)

1. The utility model provides a be used for brazilian splitting testing machine sample to send into automatically and levelling device, it includes the splitting anchor clamps, its characterized in that: the automatic leveling displacement sensor device comprises a sensor connecting piece, a hollow connecting column, a clamping transmission sleeve rod and a power motor A, the sensor connecting piece is connected with the splitting fixture through the hollow connecting column, the clamping transmission sleeve rod is arranged inside the sensor connecting piece, the power motor A is connected to the outer side of the sensor connecting piece, and a displacement sensor is arranged in the clamping transmission sleeve rod; the automatic test piece collecting and releasing device comprises a test piece collecting and releasing box, a device supporting frame, a collecting and releasing box connecting piece and a power motor B, wherein the test piece collecting and releasing box is arranged at the bottom in the splitting clamp, the test piece collecting and releasing box is positioned above the device supporting frame and connected through a collecting and releasing box connecting piece, and the collecting and releasing box connecting piece is connected with the test piece collecting and releasing box, the device supporting frame and the power motor B; the central control device comprises a connecting circuit for connecting the power motor A and the power motor B and a central controller.
2. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the splitting clamp is characterized in that the hollow connecting column is connected with a round tube on the splitting clamp, evenly distributed screw holes are formed in the hollow connecting column, and corresponding screw holes are also formed in the round tube.
3. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the clamping transmission sleeve rod is a hollow cylinder, a through screw hole is formed in the cylinder, a rectangular convex groove is formed in the outer surface of the cylinder, a toothed belt is arranged on the other side, opposite to the convex groove, of the cylinder, and the toothed belt is matched with a long gear on the power motor A.
4. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the sensor connecting piece is a hollow cylinder, the upper surface of the sensor connecting piece is provided with an opening, the inner wall of the sensor connecting piece is provided with a groove, and the groove is matched with a convex groove on the clamping transmission loop bar.
5. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the test piece is got and is put outstanding rectangle that bottom both sides of box were provided with, the upper surface of one side outstanding rectangle is provided with the rack, and the outstanding rectangle of another side is the plane, is provided with the disc test piece in the test piece is got and is put the box.
6. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: two vertical upward slideways are arranged on the device supporting frame and are respectively positioned on two sides of the test piece taking and placing box, and the head of the device supporting frame is fixedly connected with the sensor connecting piece.
7. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the power motor B is provided with a short gear which is matched with the rack, a sliding groove is formed in the box taking and placing connecting piece, the sliding groove is matched with the rectangular protrusions on the two sides of the box taking and placing box through the test piece, a sliding block is further arranged on the front portion of the sliding groove, and the sliding block is matched with a sliding way on the device supporting frame.
8. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the automatic leveling displacement sensor devices are two and are symmetrically arranged on two sides of the splitting clamp.
9. The automatic sample feeding and leveling device for the brazilian split tester according to claim 1, wherein: the number of the power motors A is two, the number of the power motors B is one, and the power motors A and the power motors B are in an automatic locking state in a static state.
CN201921832888.XU 2019-10-29 2019-10-29 Be used for brazilian splitting testing machine sample to send into automatically and levelling device Active CN210982488U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110632337A (en) * 2019-10-29 2019-12-31 河南理工大学 Automatic feeding and leveling device and method for Brazilian splitting testing machine sample

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110632337A (en) * 2019-10-29 2019-12-31 河南理工大学 Automatic feeding and leveling device and method for Brazilian splitting testing machine sample
CN110632337B (en) * 2019-10-29 2024-04-09 河南理工大学 Automatic sample feeding and leveling device and method for Brazilian split testing machine

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