CN204869242U - Superelevation toughness engineered cementitious composites mixer - Google Patents

Abstract

The utility model discloses an ultra-high-toughness cement-based composite material mixer, which comprises a bracket, and a mixing bucket with openings at both ends is horizontally arranged on the bracket. The lifting plate is horizontally provided with a central shaft in the mixing barrel, and a plurality of stirring teeth are provided on the outer wall of the central shaft. The beneficial effects of the utility model are: the mixing tank can not only be used for mixing ordinary concrete, but also realizes mixing of ultra-high toughness cement-based composite materials through the setting of mixing teeth and lifting plates on the central shaft, and can mix fibers and Ordinary concrete is evenly mixed, and at the same time, compared with other ultra-high toughness concrete, the mixing efficiency is high; the mixing teeth are arranged on the mixing teeth in a plum blossom shape, which can evenly mix the fibers in the mortar matrix, and help To improve its mixing efficiency.

Description

Ultra-high toughness cement-based composite material mixer

technical field

The utility model relates to an ultra-high toughness cement-based composite material mixer.

Background technique

Ordinary concrete has the disadvantages of low tensile strength, poor toughness, and poor control of cracks after cracking. Due to these shortcomings of concrete, the premature deterioration of the concrete structure cannot continue to be used, resulting in a reduction in the durability and service life of the concrete structure. In order to overcome these shortcomings of concrete, ultra-high toughness cement-based composite (ECC) was proposed to be applied to concrete. Optimization, only need to add 2% volume ratio of fiber. Concrete added with ultra-high toughness cement-based composite materials can significantly improve the tensile and shear resistance of concrete, improve the toughness of concrete, and can also control the development of concrete cracks very well. It is used in practical engineering, but because there is no special equipment in the process of concrete mixing and mixing, the fibers cannot be evenly mixed in the concrete. Most of the mixed fibers do not form an ultra-high toughness cement base with the mortar, and The mixing efficiency is low.

Utility model content

The purpose of this utility model is to provide an ultra-high toughness cement-based composite material that can not only mix ordinary concrete mixture, but also achieve uniform mixing of fibers and mixture, and can be better used in practical engineering. blender.

In order to achieve the above object, the utility model adopts the following technical solutions:

The ultra-high toughness cement-based composite material mixer includes a bracket, and a mixing bucket with openings at both ends is horizontally arranged on the bracket. The mixing bucket is driven to rotate by the first driving mechanism, and several lifting plates are installed on the inner wall of the mixing bucket. A central shaft is arranged horizontally in the mixing tank, and one end of the central shaft is provided with a second driving mechanism, the second driving mechanism is arranged outside the mixing tank, and the other end of the central shaft is suspended in the mixing tank, and multiple shafts are arranged on the outer wall of the central shaft The root stirring teeth, the first driving mechanism drives the mixing barrel to rotate to mix the dry material evenly, and then drives the central shaft to rotate through the second stirring mechanism, and the central shaft drives the stirring teeth to rotate. The function of the lifting plate is to cooperate with the stirring teeth in the mixer Combination Stir the fiber and mortar material evenly.

Further, a sleeve is sleeved on the central shaft, the stirring teeth are arranged on the sleeve, the diameter of the sleeve is larger than the diameter of the central shaft, and the two ends of the sleeve are fixed on the central shaft through the sleeve bracket, and the The stirring teeth are fixed on the casing, which facilitates the manufacture of the stirring teeth.

Further, the end of the stirring tooth away from the central axis is conical, and the function of the stirring tooth is to break up the mixture added with fibers, and the top of the stirring tooth is conical to facilitate this purpose.

Furthermore, a plurality of stirring teeth are arranged on the casing in the shape of a quincunx pile, because the quincunx shape is evenly distributed, and the fibers will be evenly mixed in the mortar material during the stirring process.

Further, both ends of the mixing barrel are tapered, and the two ends of the tapering are used to prevent the mixture in the mixing barrel from slipping out of the mixing barrel during the stirring process.

Further, the opening of the mixing barrel far away from the first driving mechanism is the discharge port, and the other opening is the feeding port, and several deflectors are arranged on the tapered inner wall of the mixing barrel at the discharge port, The function of the deflector is to smoothly pour out the mixture from the discharge port when the first driving mechanism is reversed.

Further, the stirring teeth are perpendicular to the central axis, that is, the main part of the stirring tooth mixing bucket is vertical, and the lifting plate raises the mixture, and when the lifting plate turns to the top of the mixing bucket, the lifted The mixture just falls on the stirring teeth.

Further, the second drive mechanism includes an external motor, a transmission shaft is horizontally provided at the bottom of the mixing bucket, and a gear is provided on the transmission shaft, and the external motor drives the transmission shaft to drive the mixing bucket to rotate, and the outer circumference of the mixing bucket There is a ring gear meshing with the gear on the top, and the rotation of the mixing bucket is realized through the cooperation of the gear and the ring gear. The transmission shaft is set on the upper surface of the bracket, and there is a support shaft corresponding to it. The supporting gear meshed with the ring gear drives the mixing bucket to rotate through the meshing of the gear and the ring gear, and at the same time, the gear and the supporting gear support the mixing bucket.

The working principle of the utility model is: drive the mixing barrel to rotate through the first driving mechanism, and stir the common dry material evenly; after the fibers are added into the mortar, the second driving mechanism drives the central shaft in the mixing barrel to rotate, and then When the rotation speed of the central axis is faster than the rotation speed of the mixing bucket, so that the two have a relative speed, the lifting plate will bring the fiber and mortar material to the top of the mixing bucket under the rotation of the mixing bucket, and the mixing material will fall, and the The stirring teeth on the tube break up the fiber and the mortar material, so that the mortar material and the fiber are evenly mixed; when the mixing barrel is reversed, the evenly mixed mixture is poured out from the outlet of the mixing barrel.

The beneficial effects of the utility model are:

1) The mixing tank can not only be used for mixing ordinary concrete, but also realizes the mixing of ultra-high toughness cement-based composite materials through the setting of stirring teeth and lifting plates on the central shaft, and can mix fibers and ordinary concrete evenly, and at the same time , Compared with the mixing of other ultra-high toughness concrete, the mixing efficiency is high.

2) Through the cooperation of the conical stirring teeth on the top and the lifting plate, the fibers and mortar materials can be quickly broken up.

3) The stirring teeth are arranged on the stirring teeth in a quincunx shape, which can evenly mix the fibers in the mortar matrix and help to improve its stirring efficiency.

Description of drawings

Fig. 1 is the structural representation of agitator in the utility model;

Fig. 2 is a schematic diagram of the inner central axis of the mixer in the utility model;

Fig. 3 is the arrangement schematic diagram of agitating tooth in the utility model;

Among them: 1. Discharge port, 2. Deflector, 3. Sleeve support, 4. Mixing barrel, 5. Stirring teeth, 6. Lifting plate, 7. Central shaft, 8. Sleeve, 9. Feed Mouth, 10. Inner reducer, 11. Connecting bearing, 12. Inner motor, 13. Inner motor bracket, 14. Transmission belt, 15. Pulley, 16. Drive shaft, 17. Gear, 18. Outer motor, 19. Outer Reducer, 20. ring gear, 21. bracket.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

Fig. 1 is the structure schematic diagram of ultra-high toughness cement-based composite material mixer, and this mixer comprises the support 21 that is used to support each mechanism, is provided with the mixing tank 4 that both ends are opened on the support 21 horizontally, and mixing tank 4 is driven by the first The mechanism drives the rotation. There are two inclined lifting plates 6 symmetrically arranged on the inner wall of the mixing tank 4. The lifting plates 6 are rectangular. One long side of the lifting plate 6 is fixed on the inner wall of the mixing tank 4. When this side is vertical When the direction is upward, the entire surface is inclined in the mixing tank 4, and the inclination angle is 13°～20°. Because the mortar material is heavy, the material is lifted by the lifting plate 6, so that the mortar blanking is more uniform and not scattered. ; A central axis 7 is horizontally provided in the mixing bucket 4, and one end of the central axis 7 is provided with a second driving mechanism, and the second driving mechanism is arranged outside the mixing bucket 4, and the other end of the central axis 7 is suspended in the mixing bucket 4, A plurality of stirring teeth 5 are arranged on the outer wall of the central shaft 7, and the first driving mechanism drives the mixing barrel 4 to rotate to mix the dry material evenly, and then drives the central shaft 7 to rotate through the second stirring mechanism, and the central shaft 7 drives the stirring teeth 5 Rotating, the function of the lifting plate 6 is to combine with the stirring teeth 5 in the mixer to mix the fiber and the mortar material evenly; in addition, the first driving mechanism is the inner motor 12, and the inner motor 12 is fixed on the upper surface of the bracket 21 through the inner motor bracket 13 , the second driving mechanism is an outer motor 18, the inner motor 12 is connected with the central shaft 7 through the inner reducer 10, and the outer motor 18 is connected with the transmission shaft 16 through the outer reducer 19.

Fig. 2 is the schematic diagram of central shaft, is sleeved with casing 8 on described central shaft 7, and described stirring tooth 5 is arranged on the casing 8, and the diameter of casing 8 is greater than the diameter of central shaft 7, and the two sides of casing 8 The end is fixed on the central shaft 7 through the casing bracket 3, and the stirring tooth 5 is fixed on the casing 8, which facilitates the making of the stirring tooth 5.

Figure 3 is a schematic diagram of the distribution of the stirring teeth on the central axis. A plurality of stirring teeth 5 are arranged on the sleeve 8 in the shape of plum blossom piles. The stirring teeth 5 are cylindrical, and the end away from the central axis 7 is conical. The distance between the two stirring teeth is 30-50mm. The function of the stirring teeth is to break up the mixture added with fibers. The top of the stirring teeth is conical to facilitate this purpose.

Both ends of the mixing bucket 4 are tapered, and the two ends of the cone are to prevent the mixture in the mixing bucket from slipping out of the mixing bucket during the mixing process, away from the side of the mixing bucket 4 of the first driving mechanism. The opening is the discharge port 1, and the other opening is the feed port 9. Two deflectors 2 are arranged on the conical inner wall of the mixing tank 4 at the discharge port 1, and the two deflectors 2 are arranged crosswise. When the bucket 4 rotates forward, the mixture is effectively prevented from overflowing, and when the mixing bucket 4 is reversed, the mixture is smoothly poured out from the discharge port 1.

The stirring teeth 5 are perpendicular to the central axis 7, that is, the stirring teeth 5 are perpendicular to the main part of the mixing bucket 4, and the lifting plate 6 raises the fibers and mortar materials. When at the top, the fiber and mortar material lifted down just in time fall on the stirring teeth 5.

The second driving mechanism comprises an outer motor 18, and the outer motor 18 is arranged below the horizontal plane of the support 21, and the outer motor 18 is connected with the drive shaft 16 horizontally arranged at the bottom of the mixing bucket 4 through a belt transmission mechanism, and vertically on the drive shaft 16. Two gears 17 are arranged directly, and the external motor 18 drives the mixing tank 4 to rotate through the driving transmission shaft 16. A ring gear 20 meshing with the gear 17 is arranged on the outer circumference of the mixing tank 4. Through the gear 17 and the ring gear 20 cooperates to realize the rotation of the mixing bucket 4, the transmission shaft 16 is arranged on the upper surface of the bracket 21, and there is a support shaft corresponding to it, and a support gear that can mesh with the ring gear 20 is arranged on the support shaft. The ring 20 meshes to drive the mixing bucket 4 to rotate, and at the same time, the gear 17 and the support gear support the mixing bucket 4 .

In addition, because the quartz sand and other materials in the concrete are sand-like, the requirements for the various mechanisms in the mixing tank 4 are relatively high, so the casing 8, stirring teeth 5, lifting plate 6 and deflector 2 are all made of wear-resistant material.

The mixing method of the mixer, the specific steps are as follows:

1) First put quartz sand, cement, fly ash and additives into the mixing tank 4 from the feed port 9, then open the external motor 18 and the external reducer 19 that drive the transmission shaft 16 to rotate, and pass the transmission shaft 16 The gear 17 installed on the top is engaged with the ring gear 20 on the mixing tank 4 to drive the mixing tank 4 to rotate;

2) After the dry material is evenly stirred, add water to stir until the mortar can flow evenly and has a certain viscous shape, then add the prepared fiber material into the mixing tank 4 from the feed port 9, and at the same time Turn on the inner motor 12 and the inner reducer 10 that drive the central shaft 7 of the mixer;

3) After the mixture is evenly stirred, the inner motor 12 and the inner reducer 10 are suspended, and the outer motor 18 that drives the drive shaft 16 is reversed to drive the mixing bucket 4 to reverse, so that the mixture is discharged from the discharge port 1 pour out;

4) After the final stirring work is finished, wash the mixing barrel 4 with clean water and turn off the power.

The above is only a preferred embodiment of the utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the utility model, some improvements and modifications can also be made. Retouching should also be regarded as the scope of protection of the present utility model.

Claims (8)

1. superhigh tenacity cement-base composite material mixer, comprise support, it is characterized in that, support is horizontally disposed with the agitator that two ends are provided with opening, agitator is driven by the first driving mechanism and rotates, tilt to be provided with some places lifting blade at agitator inwall, in agitator, level is provided with a central shaft, and one end of central shaft is provided with the second driving mechanism, and the second driving mechanism is arranged on outside agitator, the central shaft other end is unsettled to be located in agitator, and central shaft outer wall is provided with many stirrer gears.

2. mixer as claimed in claim 1, is characterized in that, on described central shaft, cover has sleeve pipe, and described stirrer gear is arranged on sleeve pipe.

3. mixer as claimed in claim 1, is characterized in that, described stirrer gear is conical away from one end of described central shaft.

4. mixer as claimed in claim 2, it is characterized in that, described many stirrer gears are that quincuncial pile shape is arranged on described sleeve pipe.

5. mixer as claimed in claim 1, it is characterized in that, described agitator two ends are all tapered.

6. mixer as claimed in claim 5, it is characterized in that, the opening away from the described agitator of described first driving mechanism is discharging opening, and another opening is charging aperture, is provided with several deflectors at the conical inboard wall place of discharge outlet agitator.

7. mixer as claimed in claim 1, it is characterized in that, described stirrer gear is perpendicular to described central shaft.

8. mixer as claimed in claim 1, it is characterized in that, described second driving mechanism comprises outer motor, power transmission shaft is provided with at the bottom level of described agitator, power transmission shaft is provided with gear, outer motor drives agitator to rotate by driving power transmission shaft, and described agitator excircle is provided with the gear ring with gears meshing.