CN220094920U - Experimental die for steel fiber rubber concrete test piece - Google Patents

Abstract

The utility model discloses an experimental mold for steel fiber rubber concrete specimens, which belongs to the technical field of concrete specimen experimental equipment. A cubic mold is embedded between the rectangular card holders, a cylindrical mold is embedded between the arcuate card holders, a vibration component is provided at the middle position of the upper surface of the base, and the upper surface of the base is A smoothing assembly is provided on one side, and concave clamping plates with downward openings are provided on the sides of the cubic mold and the cylindrical mold. The experimental mold is designed with a base clamping component and a vibration and smoothing component with good applicability, which solves the problem of insufficient production quality of steel fiber rubber concrete specimens in the existing technology and improves the experimental accuracy and reliability of the specimens. .

Description

An experimental mold for steel fiber rubber concrete specimens

Technical field

The utility model relates to the technical field of concrete specimen experimental equipment, and more specifically, to an experimental mold for steel fiber rubber concrete specimens.

Background technique

Steel fiber rubber concrete is a composite material composed of cement, aggregate, rubber particles and steel fibers. It combines the strength of concrete with the elastic properties of rubber, and has better impact resistance, crack resistance and durability. When making steel fiber rubber concrete, cement, aggregate and rubber particles are usually mixed evenly, and then an appropriate amount of water is added for stirring to form a concrete slurry. Finally, add the steel fibers to the slurry and stir thoroughly so that the steel fibers are evenly dispersed throughout the concrete.

In the above production process, since the surface shape, size, dosage and other factors of rubber, cement and aggregate raw materials will affect the working performance of steel fiber rubber concrete, the made steel fiber rubber concrete needs to be tested to obtain the physical and chemical properties , in order to ensure the effect of its put into use, it is usually necessary to make the steel fiber rubber concrete into a test piece using a mold and then conduct the experimental operation. This type of mold is called an experimental mold.

Common experimental molds in the prior art include: cube molds, which are used to produce cube-shaped specimens and are usually used for compressive strength testing. The molds are composed of four side plates and a bottom plate. Bolts can be passed between the side plates and the bottom plate. Or clamp for fixation, the size of the mold is usually 150 mm × 150 mm × 150 mm. Cylindrical molds are used to produce cylindrical-shaped specimens, usually used for tensile strength and compressive strength testing. The mold consists of two cylinders, the upper and lower cylinders are fixed together by clamps. The dimensions of the mold are usually 150 mm in diameter and 300 mm in height.

The existing experimental molds for specimens have the following problems in actual use. First, for each different experiment, it is necessary to replace the cubic or cylindrical molds of different shapes. Therefore, there is no base structure with good applicability designed to ensure The stability of the bottom of the mold results in the steel fiber rubber concrete specimen being produced unable to meet the experimental needs; second, the steel fiber rubber concrete raw material cannot fully fill the voids inside the mold, which will also lead to quality problems of the specimen; third, the slurry pouring is completed Finally, the surface scraping effect of the test piece is not good enough to ensure that the upper end of the test piece is flush with the top of the mold, which will also affect the production quality of the test piece.

Utility model content

The purpose of this utility model is to provide an experimental mold for steel fiber rubber concrete specimens. The experimental mold is designed with a base clamping component and a vibration and smoothing component with good applicability, which solves the problem of steel fiber in the existing technology. The problem of insufficient production quality of rubber concrete specimens has improved the accuracy and reliability of the test specimens.

In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

An experimental mold for steel fiber rubber concrete specimens, including a base. A symmetrical rectangular card holder and a symmetrical arc-shaped card holder are provided on one side of the upper surface of the base. Cubes are embedded between the rectangular card holders. Mold, a cylindrical mold is embedded between the arc-shaped holders, a vibration component is provided at the middle position of the upper surface of the base, and a smoothing component is provided at the other side of the upper surface of the base, and the cube Both the mold and the cylindrical mold are provided with concave clamping plates with downward openings on the sides.

As a further optimization of this solution, the vibration assembly includes a vibration pad, and the lower surface of the vibration pad is connected to the inside of the circular groove on the upper surface of the base through several circumferentially distributed spring damping rods. The upper surface of the base on one side of the vibration pad is upwardly connected to a card holder through two symmetrical spring damping rods. The surface of the card holder is processed with a card slot, and the concave card plate is embedded into the card slot from above. There are symmetrical limit seats with a rectangular slot in the middle on both sides of the card holder. The rectangular slot of the limit seat passes through the limit plate. A small vibration is fixed on the rear side of the card holder. motor.

As a further optimization of this solution, the small vibration motor is connected to the outer control box through lines, and the small vibration motor and the control box are both connected to external power supplies.

As a further optimization of this solution, the smoothing assembly includes a connecting plate and two support rods. A mounting rod with a scale mark is installed above the connecting plate, and a lifting ring is installed on the mounting rod. The lifting ring is limited by tightening bolts on the outside, and a strip sleeve plate extending outward is rotatably connected to the top of the lifting ring. The inner end of the strip sleeve plate is rotatably sleeved on the lifting ring and the A rectangular slot is processed on the surface of the middle area of the strip cover plate. A vertical operating lever is fixed on the outer end of the strip cover plate. An arc-shaped guide track is installed between the two support rods. The joystick is slidably embedded in the groove of the guide track.

As a further optimization of this solution, shaping rollers are connected to both sides of the rectangular channel through rotating shafts, and a two-way scraper is fixed at the middle position of the rectangular channel.

As a further optimization of this solution, the surface area of the vibration pad is larger than the bottom area of the cubic mold and the cylindrical mold.

As a further optimization of this solution, the inner surface of the arc-shaped card holder is processed with a number of anti-slip strips at equal intervals.

Compared with the existing technology, the beneficial effects of this utility model are as follows:

This utility model is designed with a rectangular card holder and an arc-shaped card holder structure, which can limit and fix the bottom of the test piece mold to ensure the fixation and tightness of the mold. At the same time, it has good applicability and can be used for both cubic molds and cylindrical molds;

A vibration component is designed in this utility model. Through structures such as small vibration motors and vibration pads, the mold after filling with slurry can be slightly vibrated to ensure that the mixed concrete fully fills the gaps in the mold and eliminates air bubbles;

This utility model is designed with a smoothing component. The staff can use the joystick to control the shaping roller and the two-way scraper to level the top of the mold and smooth the slurry surface to ensure the production quality of the test piece and improve the quality of the test piece. Experimental accuracy and reliability.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the experimental mold of the present invention;

Figure 2 is a schematic structural diagram of the vibration component of the present utility model;

Figure 3 is a schematic structural diagram of the card holder of the present utility model;

Figure 4 is a schematic structural diagram of the utility model's smoothing component;

Figure 5 is a schematic diagram of the internal structure of the rectangular slot of the present invention;

In the picture: 1. Base; 2. Cube mold; 3. Cylindrical mold; 4. Concave card plate; 5. Rectangular card holder; 6. Arc card holder; 7. Anti-slip strip; 8. Vibration pad; 9. Small vibration motor; 10. Control box; 11. Connection plate; 12. Spring damping rod; 13. Card seat; 14. Limit plate; 15. Card slot; 16. Limit seat; 17. Installation rod; 18. Lifting ring; 19. Tighten the bolts; 20. Strip plate; 21. Control lever; 22. Support rod; 23. Guide rail; 24. Shaping roller; 25. Two-way scraper.

Detailed ways

In order to make it easy to understand the technical means, creative features, objectives and effects of the utility model, the utility model will be further explained below in conjunction with specific illustrations.

The overall structure of the experimental mold of this application is shown in Figure 1, including a base 1. A symmetrical rectangular card holder 5 and a symmetrical arc-shaped card holder 6 are provided on one side of the upper surface of the base 1. Cubes are embedded between the rectangular card holders 5. Mold 2, the cylindrical mold 3 is embedded between the arc-shaped holders 6, a vibration component is provided at the middle position of the upper surface of the base 1 and a smoothing component is provided at the other side of the upper surface of the base 1, the sides of the cubic mold 2 and the cylindrical mold 3 Each is provided with a concave card plate 4 with an opening facing downward, and a number of anti-slip strips 7 at equal intervals are processed on the inner surface of the arc-shaped card seat 6;

As shown in Figures 2 and 3, the vibration assembly includes a vibration pad 8. The lower surface of the vibration pad 8 is connected to the inside of the circular groove on the upper surface of the base 1 through several circumferentially distributed spring damping rods 12. The vibration pad 8 8 The upper surface of the base 1 on one side is upwardly connected to a card holder 13 through two symmetrical spring damping rods 12. The card holder 13 is provided with a card slot 15 on its surface. The concave card plate 4 is embedded into the card slot 15 from above. There are symmetrical limit seats 16 with a rectangular slot in the middle on both sides of the base 13. The inside of the rectangular slot of the limit base 16 passes through the limit plate 14. A small vibration motor 9 is fixed on the rear side of the card base 13. The small vibration The motor 9 is connected to the outer control box 10 through lines;

As shown in Figure 4, the smoothing assembly includes a connecting plate 11 and two support rods 22. A mounting rod 17 with scale lines is installed above the connecting plate 11. A lifting ring 18 is set on the mounting rod 17, and the lifting ring 18 passes through The tightening bolts 19 on the outside are limited and the upper part of the lifting ring 18 is rotatably connected to a strip sleeve plate 20 extending to the outside. The inner end of the strip sleeve plate 20 is rotatably sleeved on the lift ring 18 and the surface of the middle area of the strip sleeve plate 20 is processed with A rectangular through slot, a vertical joystick 21 is fixed at the outer end of the strip cover plate 20, an arc-shaped guide rail 23 is installed between the two support rods 22, and the joystick 21 is slidably embedded inside the groove of the guide rail 23;

As shown in Figure 5, shaping rollers 24 are connected to both sides of the rectangular channel through rotating shafts, and a two-way scraper 25 is fixed to the middle position of the rectangular channel.

The working principle of this application is that when making steel fiber rubber concrete specimens, first mix cement, aggregate and rubber particles evenly and pour them into the cube mold 2 or cylindrical mold 3, and then embed the cube mold 2 or cylindrical mold 3 into the base In the rectangular card holder 5 or the arc card holder 6 on 1, tighten it, and then add an appropriate amount of water for stirring to form a concrete slurry. Finally, add the steel fibers to the slurry and stir thoroughly to make the steel fibers Evenly dispersed throughout the concrete, then lift the mold through the concave clamping plate 4 and embed it into the slot 15 of the clamping base 13, and insert the limiting plate 14 between the upper limiting seats 16 to achieve the fixation of the mold. Then turn on the power, start the small vibration motor 9 through the control box 10, and drive the mold to continuously vibrate slightly on the vibration pad 8 to ensure that the mixed concrete fully fills the gaps in the mold and eliminates air bubbles, and then reverses the above operation to obtain Lower the mold and place the mold in the area swept under the rectangular slot of the strip cover plate 20. The staff can control the shaping roller 24 and the two-way scraper 25 through the joystick 21 to flush the top of the mold and spread the slurry The surface is smoothed to ensure the production quality of the specimen.

The standard parts used in this utility model can be purchased from the market, and the special-shaped parts can be customized according to the instructions and drawings. The specific connection methods of each part are all mature bolts, rivets, and welding in the existing technology. The machinery, parts and equipment all adopt conventional models in the prior art, and circuit connections adopt conventional connection methods in the prior art, which will not be described in detail here.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (7)

1. An experimental die for a steel fiber rubber concrete test piece, which is characterized in that: the novel square mold comprises a base, wherein a symmetrical rectangular clamping seat and a symmetrical arc clamping seat are arranged at one side of the upper surface of the base, a cube mold is embedded between the rectangular clamping seats, a cylindrical mold is embedded between the arc clamping seats, a vibration component is arranged at the middle position of the upper surface of the base, a leveling component is arranged at the other side of the upper surface of the base, and concave clamping plates with downward openings are arranged on the sides of the cube mold and the cylindrical mold.

2. The experimental die for a steel fiber reinforced rubber concrete test piece according to claim 1, wherein: the vibration assembly comprises a vibration base plate, the lower surface of the vibration base plate is connected to the inside of a circular groove on the upper surface of the base through a plurality of spring shock absorbing rods which are distributed in a surrounding mode, the upper surface of the base on one side of the vibration base plate is upwards connected with a clamping seat through two symmetrical spring shock absorbing rods, the surface of the clamping seat is provided with a clamping groove, a concave clamping plate is embedded into the clamping groove from the upper portion, two sides of the clamping seat are provided with limiting seats of rectangular through grooves in the middle of symmetrical positions, the inner portions of the rectangular through grooves of the limiting seats penetrate through limiting plates, and the rear side of the clamping seat is fixedly provided with a small vibration motor.

3. The experimental die for steel fiber reinforced plastic concrete test pieces according to claim 2, wherein: the small vibration motor is connected to the control box at the outer side through a circuit, and the small vibration motor and the control box are externally connected with a power supply.

4. An experimental mould for a steel fibre rubber concrete test piece according to claim 3, characterized in that: the trowelling assembly comprises a connecting disc and two supporting rods, a mounting rod with scale marks is mounted above the connecting disc, a lifting ring is sleeved on the mounting rod, the lifting ring is limited by a tightening bolt in the outer side, a strip-shaped sleeve plate extending outwards is rotationally connected above the lifting ring, the inner end of the strip-shaped sleeve plate is rotationally sleeved on the lifting ring, a rectangular through groove is formed in the surface of the middle area of the strip-shaped sleeve plate, a vertical operating rod is fixed at the outer end of the strip-shaped sleeve plate, a circular arc-shaped guide rail is mounted between the two supporting rods, and the operating rod is embedded in the through groove of the guide rail in a sliding mode.

5. The experimental die for steel fiber reinforced plastic concrete test pieces according to claim 4, wherein: the two sides of the rectangular through groove are respectively connected with a shaping roller through a rotating shaft, and a bidirectional scraping plate is fixed at the middle of the rectangular through groove.

6. The experimental die for steel fiber reinforced plastic concrete test pieces according to claim 5, wherein: the surface area of the vibration pad is larger than the bottom area of the cube mold and the cylindrical mold.

7. The experimental die for steel fiber reinforced plastic concrete test pieces according to claim 6, wherein: the inner side surface of the arc-shaped clamping seat is provided with a plurality of anti-slip strips at equal intervals.