CN218726311U

CN218726311U - Cement piece wearability testing arrangement

Info

Publication number: CN218726311U
Application number: CN202222773627.3U
Authority: CN
Inventors: 黄殿武; 黄发军; 刘长存; 李嘉盛; 焦燕燕; 魏乔玉; 许杨晨
Original assignee: Jiaxing University
Current assignee: Jiaxing University
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-03-24
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of the test technique and specifically relates to a cement piece wearability testing arrangement, including frame, backup pad and power unit, be provided with vertical decurrent pivot in the frame, be provided with the connector at the lower extreme of pivot, the interval is provided with at least three connecting axle on the connector, rotate through horizontally round pin axle between the middle part of connecting axle and the connector and be connected, be provided with the detection wheel at the outside end of pivot, the medial extremity of connecting axle sets up the connecting rod through the round pin axle, the connecting rod upwards extends, is provided with electric putter in the pivot, electric putter's flexible end and connecting rod are connected. The utility model provides a cement piece wearability testing arrangement detects the wheel and can follow the circumferencial direction motion on the cement piece, need not to reciprocate, has greatly promoted detection efficiency, can control every detection wheel moreover and remain stability throughout to the pressure of cement piece in the testing process to promote detection precision and reliability.

Description

Cement piece wearability testing arrangement

Technical Field

The utility model belongs to the technical field of the test technique and specifically relates to a cement piece wearability testing arrangement.

Background

In the prior art, for the wear resistance test of a cement pouring block, the depth of a trace generated on the cement block by a detection wheel or the mass reduction of the cement block is finally measured and converted by utilizing the movement of the detection wheel on the cement block for a certain time or a certain number of times of movement.

As the Chinese utility model patent: CN201721881489.3, a concrete wear resistance test device, which comprises a test bed, a tire clamping unit and a tire braking unit; the tire clamping unit is arranged above the test bed and used for clamping a tire; the tire braking unit is used to limit the rolling of the tire. The tire clamping device of the utility model is used for installing the tire above the test bed and providing certain pressure for the tire, then placing the concrete to be tested in the test groove, and providing braking force for the tire rotation process through the tire braking unit, thereby providing horizontal friction force for the tire and the concrete test block; in the test process, the test groove realizes reciprocating motion under the combined action of the motor and the elastic force of the spring, so that the abrasion test of the tire on the concrete sample is realized.

The form needs the test groove to drive the concrete to be tested to reciprocate, and the inertia of the concrete to be tested in the process is large, so the speed cannot be too high, and the test efficiency is low and the test time is long.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technique not enough and provide a cement piece wearability testing arrangement, can effectively promote efficiency of software testing, test stability height simultaneously.

The utility model discloses a cement block wear resistance testing device, including frame, backup pad and power unit, be provided with vertical decurrent pivot in the frame, rotate between pivot and the frame and be connected, be connected at the pivot with the transmission that sets up between the power unit in the frame, be provided with the connector at the lower extreme of pivot, be provided with at least three connecting axle at the interval on the connector, rotate through the horizontal round pin axle between the middle part of connecting axle and the connector and be connected, the connecting axle sets up along the radial of pivot, is provided with the detection wheel at the outside end of pivot, and all detection wheels are the same with the distance at pivot center, the medial extremity of connecting axle sets up the connecting rod through the round pin axle, the connecting rod extends upwards, is provided with electric putter in the pivot, electric putter's flexible end is connected with the connecting rod; the supporting plate is provided with a surrounding baffle for limiting the cement blocks, and the supporting plate is fixedly connected with the rack.

Above-mentioned scheme, the pivot is rotated and is connected in the frame, and power unit drives the pivot and rotates, and connecting axle and detection wheel on the connector of pivot also rotate along with the rotation of pivot this moment, and the cement piece that awaits measuring is placed on enclosing of backup pad and is kept off, backup pad and frame fixed connection back, cement piece and detection wheel contact or be close. Then the telescopic end of the electric push rod pushes upwards to drive the connecting rod to move upwards, so that the inner side of the connecting shaft moves upwards, the outer side of the connecting shaft and the detection wheel move downwards, and a certain pressure exists between the detection wheel and the surface of the cement block. In the detection process, power unit drives the pivot and rotates, detects the wheel and moves on the same circumference on cement piece surface, and sustainable motion need not reciprocating motion, greatly promotes detection efficiency. In addition, a force measuring device such as a pressure sensor can be arranged between the connecting rod and the electric push rod and used for measuring the tension applied to the connecting rod in real time and converting the tension into the pressure of the detection wheel on the cement block. And after the cement block generates the dent in the detection process, the pressure between the detection wheel and the cement block is reduced, and the controller can control the electric push rod to extend so as to maintain the pressure between the detection wheel and the cement block. The process can improve the detection precision and the detection stability of the cement block.

The utility model discloses a power transmission device, including connecting axle, connecting rod, electric putter, pivot, connecting body, connecting rod, electric putter's flexible end and connecting rod, pivot and connecting body are inside to be hollow structure, and both link as an organic whole, the medial extremity position of connecting axle is inside the hollow structure of connecting body, the connecting rod is located inside the hollow structure of pivot, electric putter sets up at the pivot surface, is provided with the axial slot hole in the pivot of electric putter's flexible end department, sets up the connecting piece in the axial slot hole, the connecting piece is used for connecting electric putter's flexible end and the upper end of connecting rod.

The rotating shaft and the connecting body are of hollow structures, the connecting shaft can be stretched into the hollow structures, and the connecting rods and the like are arranged inside the hollow structures, so that the whole structure is more compact, and the reliability is higher.

The connecting piece of axial slot department at the pivot is provided with two baffles that upwards extend, and one of them baffle is located the hollow structure of pivot inside, and this baffle is laminated with the inner wall of pivot, and another baffle is located the outside of pivot, and this baffle is laminated with the outer wall of pivot, and two baffles restriction connecting pieces are along the axial motion of pivot in the slot. Through the setting of the baffle on the connecting piece, make the connecting piece only can follow the axial operation of pivot to promote electric putter and drive the stability of connecting rod motion, and then can better control and detect the pressure that the wheel was exerted on the cement piece, precision and stability are high.

The electric push rod is provided with an annular electric brush on a frame on the periphery of a rotating shaft at the lower end of the electric push rod, the electric push rod is provided with an elastic conducting strip, the elastic conducting strip is in sliding connection with the annular electric brush, the annular electric brush is connected with a power supply, and the annular electric brush and the elastic conducting strip provide electric energy for the electric push rod. Adopt annular brush and elastic conducting strip's setting, can realize that electric putter rotates the in-process along with the pivot, it can both obtain the electric energy all the time, even if certain displacement takes place along the axial for the pivot moreover, elastic conducting strip can extend or shorten and supply to ensure that elastic conducting strip can be connected with the brush all the time, for electric putter power supply.

The hydraulic oil cylinder is arranged at the top of the rack in a vertical downward mode, the telescopic end of the hydraulic oil cylinder is in butt joint with the top end of the rotating shaft, a connecting block is arranged at the telescopic end of the hydraulic oil cylinder, the connecting block is rotatably connected with the rotating shaft through a bearing, the central axis of the connecting block is overlapped with the central axis of the rotating shaft, and the hydraulic oil cylinder drives the rotating shaft to move on the rack in an axial direction.

Utilize hydraulic cylinder can push down the pivot a certain distance, and in the pivot rotation process, hydraulic cylinder's flexible end passes through to be connected with rotating between connecting block and the pivot moreover, so hydraulic cylinder's pushing down does not influence the normal rotation of pivot. The hydraulic oil cylinder is matched with the electric push rod, so that the adjusting range of the detection wheel is larger, and the precision controllability is higher.

The rotating shaft is provided with a belt wheel, and the power mechanism is in transmission connection with the belt wheel through a belt.

The utility model provides a cement piece wearability testing arrangement detects the wheel and can follow the circumferencial direction motion on the cement piece, need not to reciprocate, has greatly promoted detection efficiency, can control every detection wheel moreover and remain stability throughout to the pressure of cement piece in the testing process to promote detection precision and reliability.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged schematic view of fig. 1.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the objects of the present invention, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

as shown in fig. 1 and 2, the utility model discloses a cement block wear resistance testing device, which comprises a frame 1, a supporting plate 2 and a power mechanism 3, wherein a vertically downward rotating shaft 4 is arranged on the frame 1, the rotating shaft 4 is rotatably connected with the frame 1, the rotating shaft 4 is in transmission connection with the power mechanism 3 arranged on the frame 1, a connecting body 5 is arranged at the lower end of the rotating shaft 4, four connecting shafts 6 are arranged on the connecting body 5 at intervals, in other embodiments, the number of the connecting shafts 6 can be three, the included angles between the adjacent connecting shafts 6 are the same, the middle part of the connecting shaft 6 is rotatably connected with the connecting body 5 through a horizontal pin shaft, the connecting shafts 6 are radially arranged along the rotating shaft 4, detecting wheels 7 are arranged at the outer side end part of the rotating shaft 4, the distances between all the detecting wheels 7 and the center of the rotating shaft 4 are the same, a connecting rod 10 is arranged at the inner side end part of the connecting shaft 6 through a pin shaft, the connecting rod 10 extends upwards, an electric push rod 11 is arranged on the rotating shaft 4, and the telescopic end of the electric push rod 11 is connected with the connecting rod 10; the supporting plate 2 is provided with an enclosure 8 for limiting a cement block 9, and the supporting plate 2 is fixedly connected with the rack 1.

The inside hollow structure that is of pivot 4 and connector 5, and both link as an organic whole, the medial extremity position of connecting axle 6 is inside the hollow structure of connector 5, connecting rod 10 is located inside the hollow structure of pivot 4, electric putter 11 sets up at 4 surfaces of pivot, is provided with axial slot hole 13 in pivot 4 of electric putter 11's flexible end department, sets up connecting piece 12 in axial slot hole 13, connecting piece 12 is used for connecting electric putter 11's flexible end and connecting rod 10's upper end.

The rotating shaft 4 and the connecting body 5 are of hollow structures, the connecting shaft 6 can extend into the hollow structures, and the connecting rods 10 and the like are arranged inside the hollow structures, so that the whole structure is more compact, and the reliability is higher.

Two baffles 14 extending upwards are arranged on the connecting piece 12 at the axial long hole 13 of the rotating shaft 4, wherein one baffle 14 is positioned inside the hollow structure of the rotating shaft 4, the baffle 14 is attached to the inner wall of the rotating shaft 4, the other baffle 14 is positioned outside the rotating shaft 4, the baffle 14 is attached to the outer wall of the rotating shaft 4, and the two baffles 14 limit the axial movement of the connecting piece 12 in the long hole 13 along the rotating shaft 4. Through the setting of baffle 14 on the connecting piece 12, make connecting piece 12 only can follow the axial operation of pivot 4 to promote the stability that electric putter 11 drove the motion of connecting rod 10, and then can better control and detect the pressure that wheel 7 applyed on cement piece 9, precision and stability are high.

An annular brush 15 is arranged on the frame 1 at the periphery of the rotating shaft 4 at the lower end of the electric push rod 11, an elastic conducting strip 16 is arranged on the electric push rod 11, the elastic conducting strip 16 is in sliding connection with the annular brush 15, the annular brush 15 is connected with a power supply, and the annular brush 15 and the elastic conducting strip 16 provide electric energy for the electric push rod 11. Adopt annular brush 15 and elastic conducting strip 16's setting, can realize that electric putter 11 rotates the in-process along with pivot 4, it can both obtain the electric energy all the time, even if certain displacement takes place along the axial for pivot 4 moreover, elastic conducting strip 16 can extend or shorten and supply to ensure that elastic conducting strip 16 can be connected with the brush all the time, for electric putter 11 power supply.

The annular electric brushes 15 are two conductive annular tracks, one of the two conductive annular tracks is connected with the positive pole of a power supply, the other conductive elastic plate 16 is connected with the negative pole of the power supply, the two conductive elastic plates 16 are arranged on each electric push rod 11 and are respectively connected with the two annular tracks of the annular electric brushes 15.

The top of the frame 1 is provided with a vertically downward hydraulic oil cylinder 17, the telescopic end of the hydraulic oil cylinder 17 is in butt joint with the top end of the rotating shaft 4, the telescopic end of the hydraulic oil cylinder 17 is provided with a connecting block 18, the connecting block 18 is rotatably connected with the rotating shaft 4 through a bearing, the central axis of the connecting block 18 is superposed with the central axis of the rotating shaft 4, and the hydraulic oil cylinder 17 drives the rotating shaft 4 to axially move on the frame 1.

The rotating shaft 4 can be pressed down for a certain distance by using the hydraulic oil cylinder 17, and in the rotating process of the rotating shaft 4, the telescopic end of the hydraulic oil cylinder 17 is rotatably connected with the rotating shaft 4 through the connecting block 18, so that the normal rotation of the rotating shaft 4 is not influenced by the pressing down of the hydraulic oil cylinder 17. The hydraulic oil cylinder 17 is matched with the electric push rod 11, so that the adjusting range of the detection wheel 7 is larger, and the precision controllability is higher.

A belt wheel 19 is arranged on the rotating shaft 4, and the power mechanism 3 is in transmission connection with the belt wheel 19 through a belt.

Specifically, pivot 4 rotates to be connected in frame 1, and power unit 3 drives pivot 4 and rotates, and connecting axle 6 and detection wheel 7 on the connector 5 of pivot 4 also rotate along with pivot 4's rotation this moment, and the cement piece 9 that awaits measuring is placed on enclosing of backup pad 2 and is kept off 8, and backup pad 2 and frame 1 fixed connection back, hydraulic cylinder 17 drive pivot 4 downstream, impels to detect wheel 7 and cement piece 9 contact or be close. Then the telescopic end of the electric push rod 11 is pushed upwards to drive the connecting rod 10 to move upwards, so that the inner side of the connecting shaft 6 moves upwards, the outer side of the connecting shaft 6 and the detection wheel 7 move downwards, and a certain pressure exists between the detection wheel 7 and the surface of the cement block 9. In the detection process, the power mechanism 3 drives the rotating shaft 4 to rotate, the detection wheel 7 moves on the same circumference on the surface of the cement block 9, the motion can be continued, the reciprocating motion is not needed, and the detection efficiency is greatly improved. In addition, a force measuring device, such as a pressure sensor, can be disposed between the connecting rod 10 and the electric push rod 11 for measuring the pulling force exerted on the connecting rod 10 in real time, and can be converted into the pressure of the detection wheel 7 on the cement block 9. And when the pressure between the detection wheel 7 and the cement block 9 is reduced after the dent is generated on the cement block 9 in the detection process, the controller can control the electric push rod 11 to extend so as to maintain the pressure between the detection wheel 7 and the cement block 9. The above process can improve the detection accuracy and detection stability of the cement block 9.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be a mechanical connection; they may be directly connected or indirectly connected through intervening media, or may be in the interactive relationship of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The above description is only a preferred embodiment of the present invention, and the present invention is not limited to the above description, and although the present invention has been disclosed by the preferred embodiment, it is not limited to the present invention, and any person skilled in the art can make modifications or changes equivalent to the equivalent embodiment of the above embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a cement piece wearability testing arrangement, includes frame, backup pad and power unit, characterized by: the detection device comprises a rack, a power mechanism, a connecting shaft, a detection wheel, a connecting rod, an electric push rod and a detection wheel, wherein a vertical downward rotating shaft is arranged on the rack, the rotating shaft is rotatably connected with the rack, the rotating shaft is in transmission connection with the power mechanism arranged on the rack, the lower end of the rotating shaft is provided with a connecting body, at least three connecting shafts are arranged on the connecting body at intervals, the middle part of each connecting shaft is rotatably connected with the connecting body through a horizontal pin shaft, the connecting shafts are arranged along the radial direction of the rotating shaft, the outer side end of the rotating shaft is provided with the detection wheel, the distances between all the detection wheels and the center of the rotating shaft are the same, the inner side end of each connecting shaft is provided with the connecting rod through the pin shaft, the connecting rod extends upwards, the rotating shaft is provided with the electric push rod, and the telescopic end of the electric push rod is connected with the connecting rod; the supporting plate is provided with a surrounding baffle for limiting the cement blocks, and the supporting plate is fixedly connected with the rack.

2. The apparatus for testing wear resistance of cement block according to claim 1, wherein: the utility model discloses a power tool, including pivot and connector, the pivot is inside to be hollow structure, and both link as an organic wholely, the medial extremity position of connecting axle is inside the hollow structure of connector, the connecting rod is located inside the hollow structure of pivot, electric putter sets up at the pivot surface, is provided with the axial slot hole in the pivot of electric putter's flexible department, sets up the connecting piece in the axial slot hole, the connecting piece is used for connecting electric putter's flexible end and the upper end of connecting rod.

3. The apparatus for testing the wear resistance of a cement block according to claim 2, wherein: the connecting piece of axial slot department at the pivot is provided with two baffles that upwards extend, and one of them baffle is located the hollow structure of pivot inside, and this baffle is laminated with the inner wall of pivot, and another baffle is located the outside of pivot, and this baffle is laminated with the outer wall of pivot, and two baffles restriction connecting pieces are along the axial motion of pivot in the slot.

4. The apparatus for testing wear resistance of cement blocks according to claim 1, wherein: the electric push rod is provided with an annular electric brush on a frame on the periphery of a rotating shaft at the lower end of the electric push rod, the electric push rod is provided with an elastic conducting strip, the elastic conducting strip is in sliding connection with the annular electric brush, the annular electric brush is connected with a power supply, and the annular electric brush and the elastic conducting strip provide electric energy for the electric push rod.

5. The apparatus for testing the wear resistance of a cement block according to any one of claims 1 to 4, wherein: the hydraulic oil cylinder is arranged at the top of the rack, a vertical downward hydraulic oil cylinder is arranged at the top of the rack, the telescopic end of the hydraulic oil cylinder is in butt joint with the top end of the rotating shaft, a connecting block is arranged at the telescopic end of the hydraulic oil cylinder, the connecting block is rotatably connected with the rotating shaft through a bearing, the central axis of the connecting block is overlapped with the central axis of the rotating shaft, and the hydraulic oil cylinder drives the rotating shaft to move axially on the rack.

6. The apparatus for testing wear resistance of cement block according to claim 1, wherein: the rotating shaft is provided with a belt wheel, and the power mechanism is in transmission connection with the belt wheel through a belt.