CN216117172U - Mechanical property testing device of high-strength machine-made sand concrete - Google Patents

Abstract

The utility model relates to a mechanical property testing device of high-strength mechanism sand concrete, which comprises a shell, wherein a rotating wheel is vertically arranged in the shell, a driving motor is arranged at the rear end of the rotating wheel, the rotating wheel can be driven to rotate through the driving motor, the front end of the rotating wheel is rotatably connected with a connecting rod through a rotating shaft, one end, far away from the rotating shaft, of the connecting rod is rotatably connected with a testing device, and the vertical reciprocating linear motion of the testing device can be realized through the mutual matching between the rotating wheel and the connecting rod, so that the testing device can continuously and repeatedly beat the high-strength mechanism sand concrete under the condition of eliminating other interferences, and the mechanical property of the high-strength mechanism sand concrete under the condition of repeatedly receiving impacts is tested. The testing device comprises two sleeves which are arranged up and down, an inner rod is connected between the two sleeves in a sliding mode, and the upper end and the lower end of the inner rod are respectively provided with a compression spring.

Description

Mechanical property testing device of high-strength machine-made sand concrete

Technical Field

The utility model relates to the technical field, in particular to a mechanical property testing device for high-strength machine-made sand concrete.

Background

The machine-made sand concrete is concrete prepared by taking sand processed by a sand making machine and other accessory equipment as fine aggregate, the machine-made sand concrete can be used for producing high-strength concrete by consciously selecting hard rock production machine-made sand, and meanwhile, the grain composition and fineness modulus of the machine-made sand can be flexibly selected according to actual engineering requirements.

The prior art device often can only realize single measurement when testing the mechanical properties of high strength mechanism sand concrete, but must measure many times in order to guarantee the reliability of experimental data in the actual measurement process, and thereby guarantees that experimental data is unanimous and reachs hardness parameter and the elastic parameter of high strength mechanism sand concrete in the in-service use process, and the prior art device not only can't guarantee that the measuring result is unanimous at many times measurement process, and wastes time and energy.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a mechanical property testing device for high-strength machine-made sand concrete, which has the advantages of eliminating other interferences and measuring the high-strength machine-made sand concrete for multiple times so as to ensure the accuracy of the measuring result, and solves the defect that the device in the prior art can only realize single measurement.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a mechanical property testing device of high-strength machine-made sand concrete comprises a shell, wherein a rotating wheel is vertically arranged in the shell, a driving motor is arranged at the rear end of the rotating wheel, a rotating shaft is fixedly connected to the front end face of the shell, the rotating shaft and the rotating wheel are not coaxial, the driving motor is horizontally arranged, an output shaft is fixedly connected with the rotating wheel, a connecting rod is rotatably connected to the rotating shaft, the lower end of the connecting rod is rotatably connected with a testing device, the testing device comprises two sleeves, an inner rod is arranged up and down, an upper end rod is arranged between the two sleeves, the upper end and the lower end of the inner rod are respectively and fixedly connected with a compression spring, the two compression springs are vertically arranged, are respectively positioned in the two sleeves and are fixedly connected with the sleeves, and a laser range finder is fixedly connected to the outer wall of the upper sleeve, lower extreme sleeve pipe lower extreme is provided with the internal thread hole to there is a contact piece through internal thread hole spiro union, be provided with C type breach groove to the sleeve pipe on the casing to be provided with rectangle breach groove at C type breach groove opening part, rectangle breach groove is located laser range finder lower extreme, testing arrangement is located C type breach inslot side, and two sleeves are close to one end terminal surface diameter each other and equal and the smooth transition of sleeve pipe surface with interior pole diameter.

Preferably, the upper end of the shell is provided with a controller, the input end of the controller is electrically connected with a control panel, the input end of the controller is also electrically connected with the laser range finder, and the output end of the controller is electrically connected with the driving motor.

Preferably, the input end of the controller is also electrically connected with a time relay.

Preferably, the left side and the right side of the upper end and the lower end of the inner rod are respectively and fixedly connected with a limiting block, a limiting groove is formed in the sleeve and corresponds to the limiting block, and the limiting groove does not penetrate through the limiting block.

Preferably, both ends are provided with a strutting arrangement respectively about the casing, strutting arrangement includes two telescopic links, rotates through coupling mechanism between two telescopic links to be connected, strutting arrangement keeps away from casing one end fixedly connected with sucking disc relatively.

Preferably, coupling mechanism includes the mounting panel, mounting panel quantity is two, respectively with two telescopic link fixed connection, two mounting panels overlap each other, through screw through connection between two mounting panels, be provided with lock nut on the screw.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the vertical reciprocating linear motion of the testing device can be realized by utilizing the mutual matching between the connecting rod and the rotating wheel, so that the testing device can continuously and repeatedly beat the high-strength mechanism sand concrete under the condition of eliminating other interferences, and the mechanical property of the high-strength mechanism sand concrete under the condition of repeatedly receiving impact is tested.

The device can test the hardness of the high-strength concrete by utilizing the mutual matching of the sleeve, the inner rod and the compression spring, and can also test the elastic deformation of the high-strength concrete by matching with a laser range finder.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partially enlarged view of point A in FIG. 1;

FIG. 3 is a schematic view of the connection of the C-shaped notch groove and the rectangular notch groove of the present invention;

FIG. 4 is a schematic view of the connection between the driving motor and the rotating plate according to the present invention.

In the figure: 1. a drive motor; 2. a housing; 3. a testing device; 301. a laser range finder; 302. a sleeve; 303. a compression spring; 304. an inner rod; 305. a contact block; 306. a limiting block; 307. a limiting groove; 4. a support device; 401. a telescopic rod; 402. a screw; 403. locking the nut; 5. a connecting rod; 6. a controller; 7. a rotating shaft; 8. a rotating wheel; 9. a control panel; 10. a C-shaped notch groove; 11. a rectangular notch groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1-4, a mechanical property testing device for high-strength machine-made sand concrete includes a housing 2, a rotating wheel 8 is vertically disposed in the housing 2, and a driving motor 1 is disposed at the rear end of the rotating wheel 8.

The driving motor 1 is horizontally arranged, and an output shaft is fixedly connected with the rotating wheel 8 to drive the rotating wheel 8 to rotate through the driving motor 1.

The front end face of the rotating wheel 8 is fixedly connected with a rotating shaft 7, and the rotating shaft 7 and the rotating wheel 8 are not coaxial, so that when the driving motor 1 is started, the rotating shaft 7 can do circular motion around the driving motor 1.

The rotating shaft 7 is rotatably connected with a connecting rod 5, and the connecting rod 5 can do circular motion around the rotating shaft 7.

The length of the connecting rod 5 should be such that when the spindle 7 is located below the swivel wheel 8, the connecting rod 5 does not contact the inner wall of the housing 2 to avoid stroke conflicts.

Connecting rod 5 is kept away from 7 one ends of pivot relatively and is rotated through the round pin axle and connect testing arrangement 3, can test high strength mechanism sand concrete's hardness and elastic deformation through testing arrangement 3.

The testing device 3 comprises two sleeves 302, the number of the sleeves 302 is two, the sleeves are arranged up and down, an inner rod 304 is arranged between the two sleeves 302, the upper end and the lower end of the inner rod 304 are respectively and fixedly connected with a compression spring 303, the two compression springs 303 are vertically arranged and respectively positioned inside the two sleeves 302 and fixedly connected with the sleeves 302, when the testing device 3 is extruded by external force in the actual use process, the two sleeves 302 are close to each other, the length of the inner rod 304 which is immersed into the two sleeves 302 is increased, the compression springs 303 are compressed, the relative length of the testing device 3 is reduced, meanwhile, due to the existence of the two compression springs 303, the characteristic that the elasticity of the compression springs 303 has time delay property can be used for ensuring that when the lower end sleeves 302 are stressed, the impact force applied to the lower end sleeves 302 cannot be immediately reflected to the upper end sleeves 302 by the two compression springs 303, so that the upper end sleeves 302 can continuously move downwards under the action of the connecting rod 5, thereby ensuring the stability of the operation of the device.

The compression spring 303 is a coil spring bearing axial pressure in the prior art, and a certain gap is formed between the coils of the compression spring 303, so that the spring contracts and deforms when being subjected to external load, and deformation energy is stored.

The lower end of the shell 2 is provided with a C-shaped notch groove 10 corresponding to the sleeve 302, the testing device 3 is positioned in the C-shaped notch groove 10 to limit the moving track of the testing device 3 through the C-shaped notch groove 10, so that the testing device 3 can do vertical linear motion relative to the shell 2, at the moment, the rotating shaft 7 rotates along with the rotating wheel 8 to do vertical linear motion around the driving motor 1, one end of the connecting rod 5 is rotatably connected with the rotating shaft 7, the other end of the connecting rod is rotatably connected with the upper end sleeve 302 to enable the testing device 3 to do vertical reciprocating linear motion under the driving of the connecting rod 5, in the practical use process, only the lower end sleeve 302 and high-strength mechanism sand concrete are required to be adjusted to be in contact with each other when the rotating shaft 7 is positioned at the lowest end of the rotating wheel 8, and due to the existence of the two compression springs 303, the moving track of the lower end sleeve 302 is longer when the lower end sleeve 302 is in contact with the high-strength mechanism sand concrete, the larger the impact force of the testing device 3 on the high-strength mechanism sand concrete is, the more the impact force on the high-strength mechanism sand concrete can be flexibly changed according to actual testing requirements by adjusting the distance so as to test the hardness and the elastic deformation generated in the impact process.

The laser range finder 301 of fixedly connected with on the upper end sleeve pipe 302, utilize laser range finder 301 measurable quantity to go out the actual displacement distance between upper end sleeve pipe 302 and the lower extreme sleeve pipe 302, contrast the relative distance through between upper end sleeve pipe 302 and the high strength mechanism sand concrete this moment and can obtain the deformation volume of high strength mechanism sand concrete when receiving the impact, when utilizing this device to carry out a lot of measurements simultaneously, can contrast the many times deformation volume of high strength mechanism sand concrete, according to the variable looks hardness and the resistance to deformation ability that obtain this device of deformation volume change curve.

The laser range finder 301 is an instrument for measuring the distance to a target by modulating a certain parameter of laser in the prior art, and the laser range finder 301 has the advantages of light weight, small volume, simple operation, high speed and accuracy, and the error is only one fifth to one hundreds of the error of other optical range finders.

The opening of the C-shaped notch groove 10 is provided with a rectangular notch groove 11 so that the laser of the laser range finder 301 can penetrate through the housing 2, and measurement is realized.

The lower end of the lower end sleeve 302 is provided with an internal thread hole, and is in threaded connection with a contact block 305 through the internal thread hole, the diameter of the contact block 305 is larger than that of the sleeve 302 to serve as a reflection device of the laser range finder 301, meanwhile, the contact block 305 is in threaded connection with the lower end sleeve 302 to be convenient for a user to detach, the user can use the contact blocks 305 with different diameters in a detaching and replacing mode to change the contact area between the contact blocks and the high-strength mechanism sand concrete, the pressure between the testing device 3 and the high-strength mechanism sand concrete is changed, and therefore a more flexible testing mode is achieved.

Two sleeve pipes 302 are close to one end terminal surface diameter each other and are equal and sleeve pipe 302 outer wall smooth transition with interior pole 304 diameter, in the in-service use process because interior pole 304 diameter is less than sleeve pipe 302, so in the process of testing arrangement 3 downstream, transition to interior pole 304 by lower extreme sleeve pipe 302 and be located C type breach groove 10 inside, testing arrangement 3 can take place certain slope, testing arrangement 3 continues downwards this moment, because sleeve pipe 302 outer wall smooth transition just has a grade, so when transition to upper end sleeve pipe 302 by interior pole 304 and be located C type breach groove 10 inside, testing arrangement 3 can follow the slope state and change vertical state, thereby guarantee that testing arrangement 3 can be perpendicular and the contact of high strength mechanism sand concrete, guarantee the test effect.

The utility model discloses a casing 302, including interior pole 304, including stopper 306, casing 302, stopper 306, stop groove 307 and stop groove 306, the stopper 306 is not run through casing 302, can guarantee through the mutually supporting between stopper 306 and the stop groove 307 that interior pole 304 does not break away from with two casing 302, can not take place the stroke conflict, mutually supporting between stopper 306 and the stop groove 307 simultaneously can spacing interior pole 304 take place to rotate for casing 302, avoids leading to compression spring 303 to damage because of rotating.

The left side and the right side of the shell 2 are respectively provided with a supporting device 4 which comprises two telescopic rods 401 arranged left and right, and the telescopic rods 401 are the prior art and can adopt a plurality of telescopic joints.

Two telescopic links 401 in single strutting arrangement 4 rotate through coupling mechanism between connect, and the user's accessible changes the relative angle between two telescopic links 401 and fixes this device according to the actual use environment, guarantees that this device can be in stable environment continuous work.

The connecting mechanism comprises two mounting plates which are respectively arranged at one end of the two telescopic rods 401 close to each other so as to form an overlap between the two mounting plates.

A horizontally arranged screw 402 penetrates between the two mounting plates, relative rotation between the two mounting plates can be realized through the screw 402, displacement change does not occur at the same time, and a locking nut 403 is screwed at the tail part of the screw 402 so as to change the pressing force applied on the mounting plates by the locking nut 403 in a manner of rotating the locking nut 403, so that the relative angle between the two telescopic rods 401 is fixed.

The telescopic device is relatively far away from one end of the shell 2 and is fixedly connected with a sucker so as to fix the device.

The upper end of the shell 2 is also provided with a controller 6, and the input end of the controller 6 is electrically connected with a control panel 9 so that a user can input a control instruction to the controller 6 by using the control panel 9.

The output end of the controller 6 is electrically connected with the driving motor 1 to control the driving motor 1 to start and stop, and the input end of the controller 6 is also electrically connected with the laser range finder 301 to receive data.

The input end of the controller 6 is also electrically connected with a time relay, the automatic control of the driving motor 1 can be realized according to time through the time relay, and meanwhile, the number of rotating turns of the rotating wheel 8 can be determined according to time, so that the impact frequency of the device on the high-strength mechanism sand concrete is determined.

The controller 6 can adopt a PLC controller 6 or a single chip microcomputer controller 6.

The working principle is as follows: in the actual use process, a user firstly needs to utilize the supporting device 4 to fix the device according to the actual use environment, then determines the relative distance between the lower end surface of the shell 2 and the high-strength mechanism sand concrete according to the actual required test items of the high-strength mechanism sand concrete, then utilizes the control panel 9 to control the start and stop of the driving motor 1 to determine the working efficiency, and finally the device starts to work.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a mechanical properties testing arrangement of high strength mechanism sand concrete which characterized in that: the device comprises a shell (2), wherein a rotating wheel (8) is vertically arranged in the shell (2), a driving motor (1) is arranged at the rear end of the rotating wheel (8), a rotating shaft (7) is fixedly connected to the front end face of the rotating wheel, and the rotating shaft (7) and the rotating wheel (8) are not coaxial;

the driving motor (1) is horizontally arranged, and an output shaft is fixedly connected with the rotating wheel (8);

the rotating shaft (7) is rotatably connected with a connecting rod (5), and the lower end of the connecting rod (5) is rotatably connected with a testing device (3);

the testing device (3) comprises two sleeves (302), the number of the sleeves (302) is two, the sleeves are arranged up and down, an inner rod (304) is arranged between the two sleeves (302), the upper end and the lower end of the inner rod (304) are respectively and fixedly connected with a compression spring (303), and the two compression springs (303) are vertically arranged, are respectively positioned inside the two sleeves (302) and are fixedly connected with the sleeves (302);

the outer wall of the upper end sleeve (302) is fixedly connected with a laser range finder (301), the lower end of the lower end sleeve (302) is provided with an internal thread hole, and a contact block (305) is screwed through the internal thread hole;

the shell (2) is provided with a C-shaped notch groove (10) corresponding to the sleeve (302), a rectangular notch groove (11) is formed in the opening of the C-shaped notch groove (10), and the rectangular notch groove (11) is located at the lower end of the laser range finder (301);

the testing device (3) is located on the inner side of the C-shaped notch groove (10), the diameter of the end face of one end, close to each other, of the two sleeves (302) is equal to that of the inner rod (304), and the surfaces of the sleeves (302) are in smooth transition.

2. The mechanical property testing device of the high-strength machine-made sand concrete according to claim 1, characterized in that: casing (2) upper end is provided with controller (6), controller (6) input electric connection has a control panel (9), the input still with laser range finder (301) electric connection, output and driving motor (1) electric connection.

3. The mechanical property testing device of the high-strength machine-made sand concrete according to claim 2, characterized in that: the input end of the controller (6) is also electrically connected with a time relay.

4. The mechanical property testing device of the high-strength machine-made sand concrete according to claim 1, characterized in that: the inner rod (304) is fixedly connected with a limiting block (306) at the left side and the right side of the upper end and the lower end of the inner rod respectively, a limiting groove (307) is formed in the sleeve (302) and corresponds to the limiting block (306), and the limiting groove (307) does not penetrate through the limiting block (306).

5. The mechanical property testing device of the high-strength machine-made sand concrete according to claim 1, characterized in that: both ends are provided with one strutting arrangement (4) respectively about casing (2), strutting arrangement (4) include two telescopic links (401), rotate through coupling mechanism between two telescopic links (401) and connect, casing (2) one end fixedly connected with sucking disc is kept away from relatively in strutting arrangement (4).

6. The mechanical property testing device of the high-strength machine-made sand concrete according to claim 5, characterized in that: coupling mechanism includes the mounting panel, mounting panel quantity is two, respectively with two telescopic link (401) fixed connection, and two mounting panels overlap each other, through screw (402) through connection between two mounting panels, be provided with lock nut (403) on screw (402).

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