CN118144110A - Lightweight concrete production equipment and method - Google Patents

Abstract

The invention discloses a production device and a method of light concrete, and relates to the technical field of light concrete production. The production equipment of the lightweight concrete comprises: the concrete stirring barrel is internally provided with a foam stirring barrel, the bottom of the foam stirring barrel is pressed on the bottom surface of the concrete stirring barrel, and a concrete stirring space is formed between the concrete stirring barrel and the foam stirring barrel; the lifting structure is arranged below the concrete mixing barrel and is used for driving the foam mixing barrel to be separated from the bottom surface of the concrete mixing barrel upwards so as to enable foam in the foam mixing barrel to be in contact with concrete in the concrete mixing space; the foaming device is characterized in that the foam stirring barrel is arranged in the concrete stirring barrel, so that the foam after foaming is not abraded by the foam pump and the conveying pipeline, the consumption of the foam in the conveying process can be obviously reduced, and the foam concrete of a later-stage finished product is ensured to have enough pores.

Description

Lightweight concrete production equipment and method

Technical Field

The invention relates to the technical field of lightweight concrete production, and in particular to a lightweight concrete production device and method.

Background technique

Lightweight concrete is foamed concrete. One of its production processes is to prepare foam and concrete separately, then feed the foam into a concrete mixer to mix the two. After mixing, the materials can be poured to the desired location or fed into a mold for molding.

However, this method requires the use of a pump or mechanical equipment to feed the foam into the concrete mixer after the foam is prepared. This results in a certain amount of foam loss during the foam being transported by the pump or mechanical equipment, and this foam loss will directly affect the porosity of the formed concrete.

Summary of the invention

In view of the deficiencies in the prior art, the present invention provides a lightweight concrete production device and method, which solves the problems raised in the above-mentioned background technology.

To achieve the above objectives, on the one hand, the present invention provides a lightweight concrete production equipment, comprising: a concrete mixing barrel, wherein a foam mixing barrel is arranged in the concrete mixing barrel, and the bottom of the foam mixing barrel is pressed onto the bottom surface of the concrete mixing barrel, and a concrete mixing space is formed between the concrete mixing barrel and the foam mixing barrel; a lifting structure, wherein the lifting structure is arranged below the concrete mixing barrel, and the lifting structure is used to drive the foam mixing barrel upward to separate from the bottom surface of the concrete mixing barrel, so that the foam in the foam mixing barrel contacts with the concrete in the concrete mixing space; a foamer, wherein the foamer is located in the foam mixing barrel, and the foamer is used to stir and foam the liquid in the foam mixing barrel; and a concrete mixer, wherein the concrete mixer is located in the concrete mixing space, and the concrete mixer is used to stir the concrete in the concrete mixing space and mix the concrete and the foam.

Furthermore, the concrete mixer includes a rotating shaft and a mixing blade arranged outside the circumference of the lower end of the rotating shaft, and at least one mixing blade is provided. A blade angle adjustment member is provided between the mixing blade and the upper end of the foam mixing barrel so that the mixing blade is in a vertical state when the foam mixing barrel is lifted, so as to reduce the shear force of the mixing blade on the foam.

Furthermore, the concrete mixer also includes a flexible stirring blade, which includes a positioning ring fixed on the rotating shaft, a flexible rope installed on the outer surface of the positioning ring, and a flexible net arranged at the other end of the flexible rope; the straightened length of the flexible net and the flexible rope can enable the flexible net to reach the center of the foam mixing barrel, so that the flexible net can net the foam into the concrete mixing space.

Furthermore, the blade angle adjustment member includes: the rotating shaft includes a main shaft and a cavity shaft, the lower end of the main shaft is inserted into the cavity shaft from the upper end of the cavity shaft, and first side protrusions are fixed on both sides of the main shaft near the lower end, and slide grooves are provided on both sides of the cavity shaft, the first side protrusions are located in the slide grooves, so that the rotation of the main shaft can drive the cavity shaft to rotate, and a spring is installed between the lower end of the first side protrusion and the lower end of the cavity shaft; a synchronization structure, the synchronization structure connects the main shaft and the foam stirring barrel, so that the main shaft rises and falls with the foam stirring barrel; an adjustment structure, the adjustment structure It includes a bottom cylinder fixed to the lower end of the cavity shaft, a main adjustment umbrella wheel is rotatably installed in the middle part of the lower end of the bottom cylinder, at least one driven adjustment umbrella wheel is meshed on the main adjustment umbrella wheel, a connecting shaft is fixedly provided in the middle part of the driven adjustment umbrella wheel, the other end of the connecting shaft is located outside the bottom cylinder and is fixedly connected to the stirring blade, an adjustment shaft is fixedly provided above the middle part of the main adjustment umbrella wheel, and a spiral groove is provided on the outer surface of the adjustment shaft, a protrusion is fixedly provided on one side of the inner wall of the groove, the other end of the protrusion is inserted in the spiral groove, and when the main shaft is raised or lowered, the protrusion slides in the spiral groove to rotate the adjustment shaft.

Furthermore, it also includes a driving component, which is used to drive the foamer to rotate along the center of the foam mixing barrel, and the driving component is used to drive the concrete mixer to rotate along the main axis and revolve around the center of the foam mixing barrel.

Furthermore, the synchronization structure includes: a rotating ring, which is rotatably mounted on the upper end of the circumference of the foam mixing barrel; a limiting convex ring, which is arranged on the circumference of the main shaft; a limiting platform, which is rotatably mounted on the outside of the limiting convex ring through a bearing; a second connecting rod, which is fixed between the rotating ring and the limiting platform; when the concrete mixer revolves, the rotating ring rotates on the foam mixing barrel, and when the foam mixing barrel rises or falls, the rotating ring and the second connecting rod drive the main shaft to rise or fall.

Furthermore, the foamer includes a foaming stirring shaft and a flexible stirring belt installed on the outside of the circumference of the lower end of the foaming stirring shaft. The foaming stirring shaft is provided with air holes on the circumference near the lower end. The foaming stirring shaft is a cavity structure, and compressed gas is introduced into the upper end of the foaming stirring shaft so that the compressed gas enters the concrete mixing barrel through the air holes.

Furthermore, the lightweight concrete production equipment also includes a bracket assembly, which includes a base supported under the concrete mixing barrel, a column fixed above one side of the base, and a mounting frame arranged at the upper end of the column near one side of the base; the driving assembly includes: the upper end of the foaming stirring shaft passes through the upper surface of the mounting frame, the upper surface of the mounting frame is provided with a main drive structure for driving the foaming stirring shaft to rotate, an outer shaft is installed for rotation outside the circumference of the foaming stirring shaft, a first connecting rod is fixedly provided on one side of the lower end of the outer shaft, a middle sleeve is fixedly provided on the other end of the first connecting rod, and the middle sleeve is arranged on the main shaft, so that when the outer shaft rotates, the middle sleeve and the main shaft are driven to make a circular motion with the first connecting rod as the radius; an active umbrella wheel is provided near the upper end of the foaming stirring shaft, a steering umbrella wheel is meshed on one side of the active umbrella wheel, and a driven umbrella wheel is fixedly provided near the upper end of the outer shaft, A secondary deceleration bevel wheel is meshed with a side of the moving bevel wheel close to the steering bevel wheel, and a primary deceleration gear set is provided between the secondary deceleration bevel wheel and the steering bevel wheel, and the primary deceleration gear set includes a pinion coaxial with the steering bevel wheel and a large gear coaxial with the secondary deceleration bevel wheel, and the pinion and the large gear are meshed; the rotation speed of the foaming stirring shaft is greater than the rotation speed of the outer shaft, so that the foaming speed of the foamer is greater than the revolution mixing speed of the concrete mixer; a fixed gear is fixed at a position on the lower surface of the bracket assembly opposite to the center of the outer shaft, a through hole is provided in the middle of the fixed gear for the outer shaft to pass through, a rolling wheel is fixed on the upper end of the middle sleeve, and the rolling wheel is meshed with the fixed gear; an integrated second side protrusion is provided on the side of the main shaft close to the upper part, the middle holes of the rolling wheel and the middle sleeve are matched with the main shaft and the second side protrusion, and a compensation hole is provided on the mounting frame for the main shaft to pass through.

In another aspect, the present invention provides a method for producing lightweight concrete using a lightweight concrete production device, comprising the following steps:

S1. Foaming the foaming liquid in a foam mixing barrel, and mixing cement, water, sand and aggregate in a concrete mixing space to obtain the required foam and concrete;

S2, lifting the foam mixing barrel to separate the foam mixing barrel from the concrete mixing barrel so that there is no obstruction between the obtained foam and the concrete;

S3, the concrete mixer and the foamer work together to mix the foam with the concrete.

Furthermore, S3 includes: when the foam stirring barrel rises, the stirring blade is driven to rotate to a vertical state by a blade angle adjustment member to reduce the shear force of the stirring blade on the foam.

The present invention has the following beneficial effects:

(1) The lightweight concrete production equipment has a foam mixing barrel disposed inside a concrete mixing barrel. When the foam is fed into the concrete mixing barrel, the foam mixing barrel for isolating the concrete and the foam can be pushed up so that the concrete and the foam can be directly contacted with each other. Thus, the foamed foam will not be worn by the foam pump and the conveying pipeline. Therefore, the consumption of the foam during the conveying process can be significantly reduced, and sufficient pores can be ensured in the finished foam concrete at a later stage.

(2) The lightweight concrete production equipment is provided with flexible stirring blades. When the foam stirring barrel rises, the flexible net and the flexible rope are no longer blocked by the foam stirring barrel and can be stretched to their maximum length when subjected to centrifugal force. At this time, the flexible net can enter the location of the foam and net the foam into the concrete mixing space. At the same time, the concrete will also enter the space where the foam is due to its own weight, thereby achieving rapid mixing.

(3) The lightweight concrete production equipment is provided with an angle adjustment member, which can drive the mixing blades to a vertical state when the foam mixing barrel rises to discharge the foam. Then, the mixing blades can contact the foam in a vertical plane when mixing the foam and concrete, thereby greatly reducing the shear force on the foam and ensuring the integrity of the foam.

Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is an overall diagram of the present invention;

FIG2 is a cross-sectional view of the concrete mixing barrel in FIG1 of the present invention;

FIG3 is a cross-sectional view of the foam stirring barrel of the present invention;

FIG4 is a diagram showing the rise of the foam stirring barrel of the present invention;

FIG5 is a schematic diagram of the internal structure of the concrete mixer in the state shown in FIG3 of the present invention;

FIG6 is a schematic diagram of the internal structure of the concrete mixer in the state shown in FIG4 of the present invention;

FIG7 is a schematic diagram of the structure of the flexible stirring blade of the present invention;

FIG8 is an exploded view of FIG6 of the present invention;

FIG9 is a diagram showing the position of the spindle in the state shown in FIG3 of the present invention;

FIG. 10 is a diagram showing the position of the spindle in the state shown in FIG. 4 of the present invention.

In the figure, 100, bracket assembly; 110, base; 120, column; 130, mounting frame; 200, driving assembly; 210, main driving structure; 211, driven gear; 212, driving gear; 213, motor; 220, fixed gear; 230, rolling wheel; 231, middle sleeve; 240, primary reduction gear set; 250, secondary reduction bevel wheel; 260, driven bevel wheel; 270, first connecting rod; 280, outer shaft; 291, driving bevel wheel; 292, steering bevel wheel; 310, concrete mixing barrel; 320, foam mixing barrel; 330, convex shell; 331, slope; 340, lifting frame; 350, lifting cylinder; 400, foamer; 410, foaming mixing shaft; 420, air hole; 430, soft mixing belt; 500, concrete mixer; 510, main shaft; 511, first side convex block; 512, groove; 513, second side convex block; 520, synchronization structure; 521, rotating ring; 522, second connecting rod; 523, limit table; 524, limit convex ring; 530, cavity shaft; 531, slide groove; 540, flexible mixing blade; 541, positioning ring; 542, flexible rope; 543, flexible net; 550, mixing blade; 560, adjustment structure; 561, main adjustment umbrella wheel; 562, driven adjustment umbrella wheel; 563, adjustment shaft; 564, convex block; 565, spiral groove; 567, connecting shaft; 568, bottom cylinder; 570, spring; 580, end seal; 600, protective shell; 700, compensation hole.

Detailed ways

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

The following describes the production equipment and production method of lightweight concrete provided by the embodiments of the present invention with reference to FIGS. 1-10 .

Please refer to FIG. 1 and FIG. 2 , an embodiment of the present invention provides a lightweight concrete production device, including a concrete mixing barrel 310, wherein a foam mixing barrel 320 is provided in the concrete mixing barrel 310, and the bottom of the foam mixing barrel 320 is pressed onto the bottom surface of the concrete mixing barrel 310, and the foaming liquid can be stirred at a high speed in the foam mixing barrel 320 so that the foaming liquid can quickly form foam, and a concrete mixing space is formed between the concrete mixing barrel 310 and the foam mixing barrel 320, and the concrete mixing space is used for stirring concrete on the one hand, and for mixing foam and concrete on the other hand, and then forming foamed concrete.

As shown in FIG3 and FIG4, in order to achieve the combination of foam and concrete, a lifting structure is provided here, which is provided below the concrete mixing barrel 310, and the lifting structure is used to drive the foam mixing barrel 320 upward to separate from the bottom surface of the concrete mixing barrel 310, so that the foam in the foam mixing barrel 320 contacts the concrete in the concrete mixing space. Therefore, this method of feeding foam into the concrete is a method of directly removing the foam mixing barrel 320 used to isolate the concrete and the foam, so that the foamed foam does not need to be worn by the foam pump, the conveying pipeline, and the mechanical conveying structure, so that the consumption of foam in the conveying process can be significantly reduced, and the foamed concrete of the later finished product can be ensured to have sufficient pores.

Preferably, the lifting structure is a lifting cylinder 350, a hydraulic cylinder or an electric telescopic rod, and a lifting frame 340 is fixed at the lower end of the foam mixing barrel 320. The lifting frame 340 is a hollow structure. When the lifting structure drives the lifting frame 340 to rise, it can drive the foam mixing barrel 320 to rise, thereby realizing that the foam mixing barrel 320 is upwardly separated from the bottom surface of the concrete mixing barrel 310.

Preferably, a convex shell 330 is fixed on the lower surface of the interior of the concrete mixing barrel 310, and the upper surface of the convex shell 330 is a slope 331 with the center as the high point and the edge as the low point. The convex shell 330 is used to raise the height of the foam mixing barrel 320 to avoid the situation where the concrete submerges the foam mixing barrel 320 due to the height of the foam mixing barrel 320 being too low, and the slope 331 is used to speed up the speed at which the foam enters the concrete mixing workpiece.

3 and 4 , in order to foam the foam in the foam mixing barrel 320 , a foamer 400 is provided. The foamer 400 is located in the foam mixing barrel 320 and is used to stir and foam the liquid in the foam mixing barrel 320 at a high speed.

In order to mix the concrete, a concrete mixer 500 is provided. The concrete mixer 500 is located in the concrete mixing space. The concrete mixer 500 is used to mix the concrete in the concrete mixing space in the early stage. Later, when the foam mixing barrel 320 rises, the foam enters the concrete, and the concrete mixer 500 is used to mix the concrete and the foam.

3 and 4 , the concrete mixer 500 mentioned above includes a rotating shaft and a mixing blade 550 disposed outside the circumference of the lower end of the rotating shaft, and the mixing blade 550 is provided with at least one, the rotating shaft can rotate, thereby driving the mixing blade 550 to rotate, and the rotating shaft can also revolve, thereby driving the mixing blade 550 to move along the circumference of the concrete mixing space, thereby mixing the concrete. During this mixing process, since the mixing blade 550 can rotate with the rotation of the rotating shaft, even if the rotation speed of the concrete is equal to the movement speed of the mixing blade 550 along the circumferential direction, it will not lead to a situation where mixing cannot be performed (this is because the mixing blade 550 rotating with the rotating shaft can also mix).

When mixing concrete, the mixing blade 550 should have a certain inclination angle, so that on the one hand the mixing blade 550 can mix the concrete, and on the other hand it can also provide a certain shear force to the agglomerated concrete to ensure that the concrete is mixed evenly.

Preferably, the inclination of the stirring blade 550 to the horizontal plane is 20°-60°.

As shown in Figures 3 to 6, when foam and concrete need to be mixed, the stirring blade 550 is preferably not in a tilted state to avoid the stirring blade 550 from generating shear force on the foam, thereby reducing the breakage rate of the foam when being stirred. Therefore, in the present embodiment, a blade angle adjustment member is provided between the rotating stirring blade 550 and the upper end of the foam stirring barrel 320. The blade angle adjustment member can rotate the stirring blade 550 to a vertical state when the foam stirring barrel 320 is lifted. The stirring blade 550 in the vertical state has a larger surface area in contact with the concrete and the foam when rotating with the rotating shaft (as shown in Figures 4 and 6), thereby reducing the shear force of the stirring blade 550 on the foam.

3 to 7 , in order to increase the mixing rate of concrete and foam, the concrete mixer 500 further includes a flexible stirring blade 540. The flexible stirring blade 540 includes a positioning ring 541 fixed on the rotating shaft, a flexible rope 542 installed on the outer surface of the positioning ring 541, and a flexible net 543 provided at the other end of the flexible rope 542. The straightened lengths of the flexible net 543 and the flexible rope 542 enable the flexible net 543 to reach the center of the foam mixing barrel 320, so that the flexible net 543 can net the foam into the concrete mixing space.

In this embodiment, when the shaft rotates, the flexible net 543 and the flexible rope 542 will also rotate, and due to the effect of centrifugal force, they will be stretched to the maximum extent that they are not blocked by the concrete mixing barrel 310 and the foam mixing barrel 320, so as to mix the concrete. When the foam mixing barrel 320 rises, the flexible net 543 and the flexible rope 542 lose the foam mixing barrel 320 and can be stretched to the maximum length when subjected to centrifugal force. At this time, the flexible net 543 can enter the position where the foam is located and net the foam into the concrete mixing space. At the same time, the concrete will also enter the space where the foam is located due to its own weight to achieve mixing.

Preferably, the flexible net 543 is a high-density polyethylene net.

As shown in Figures 5, 6 and 8, the blade angle adjustment member mentioned above includes: the rotating shaft includes a main shaft 510 and a cavity shaft 530, the lower end of the main shaft 510 is inserted into the cavity shaft 530 from the upper end of the cavity shaft 530, and the main shaft 510 is fixed with first side protrusions 511 on both sides near the lower end, and the cavity shaft 530 is provided with sliding grooves 531 on both sides, and the first side protrusions 511 are located in the sliding grooves 531, so that when the main shaft 510 rotates, the cavity shaft 530 can be driven to rotate due to the limiting effect of the sliding grooves 531 and the first side protrusions 511, and the lower end of the first side protrusions 511 is fixed with the cavity shaft 530. A spring 570 is installed between the lower ends of the cavity shaft 530. In the state shown in Figure 5, that is, when the mixing blade 550 is mixing concrete, the spring 570 is in a natural state. When the first side protrusion 511 slides along the slide groove 531, the main shaft 510 can rise in the cavity shaft 530. When it rises, it can pull the spring 570 upward, and the height of the cavity shaft 530 remains unchanged. In order to realize the lifting and lowering of the main shaft 510, a synchronous structure 520 is provided here. The synchronous structure 520 connects the main shaft 510 and the foam mixing barrel 320 so that the main shaft 510 can be lifted and lowered with the foam mixing barrel 320.

On the basis of the above, an adjustment structure 560 is provided, and the adjustment structure 560 includes a bottom cylinder 568 fixed to the lower end of the cavity shaft 530, and a main adjustment umbrella wheel 561 is rotatably installed in the middle of the lower end of the bottom cylinder 568, and at least one driven adjustment umbrella wheel 562 is meshed on the main adjustment umbrella wheel 561. When the main adjustment umbrella wheel 561 rotates, it can drive the driven adjustment umbrella wheel 562 to rotate. A connecting shaft 567 is fixed in the middle of the driven adjustment umbrella wheel 562, and the other end of the connecting shaft 567 is located outside the bottom cylinder 568 and is fixedly connected to the stirring blade 550, and then when the driven adjustment umbrella wheel 562 rotates The angle of the stirring blade 550 can be adjusted. In order to realize the rotation of the main adjustment umbrella wheel 561, an adjustment shaft 563 is fixed above the middle part of the main adjustment umbrella wheel 561, and the outer surface of the adjustment shaft 563 is provided with a spiral groove 565, and a protrusion 564 is fixed on one side of the inner wall of the groove 512, and the other end of the protrusion 564 is inserted into the spiral groove 565. When the main shaft 510 is raised or lowered, the protrusion 564 slides in the spiral groove 565, thereby pushing the adjustment shaft 563 to rotate through the spiral groove 565 to realize the rotation of the main adjustment umbrella wheel 561, thereby adjusting the stirring angle of the stirring blade 550.

In addition, a sealing plate 580 needs to be fixed at the lower end of the bottom tube 568 to prevent concrete from entering the bottom tube 568 .

Furthermore, the number of spiral turns of the spiral groove 565 here should be determined according to the initial angle of the stirring blade 550. For example, if the initial angle is 45°, the stirring blade 550 needs to be rotated another 45° to reach a vertical state, and the number of spiral turns should be 1/8 turn (this is based on the equal size of the main adjustment umbrella wheel 561 and the driven adjustment umbrella wheel 562).

Therefore, the lightweight concrete production equipment provided by the embodiment of the present invention can adjust the angle of the mixing blade 550 to a vertical state during the rising process of the foam mixing barrel 320 (when the foam and concrete are no longer blocked), thereby avoiding the situation where the inclined mixing blade 550 generates shear force on the foam and causes foam breakage.

As shown in FIGS. 1 , 3 , 9 and 10 , a driving assembly 200 is further included. The driving assembly 200 is used to drive the foamer 400 to rotate along the center of the foam mixing barrel 320, thereby performing high-speed mixing and foaming. The driving assembly 200 is used to drive the concrete mixer 500 to rotate along the main shaft 510 and to revolve around the center of the foam mixing barrel 320. The speeds of the rotation and revolution of the concrete mixer 500 are both lower than the rotation speed of the foamer 400.

The synchronization structure 520 mentioned above includes a rotating ring 521, which is rotatably mounted on the upper end of the circumference of the foam mixing barrel 320; a limiting convex ring 524, which is arranged on the circumference of the main shaft 510; a limiting platform 523, which is rotatably mounted on the outside of the limiting convex ring 524 through a bearing; a second connecting rod 522, which is fixed between the rotating ring 521 and the limiting platform 523; when the concrete mixer 500 revolves, the limiting platform 523 thereon can drive the rotating ring 521 to rotate on the foam mixing barrel 320 through the second connecting rod 522 (preferably, a ball or bearing is arranged between the rotating ring 521 and the foam mixing barrel 320), and conversely, when the foam mixing barrel 320 is raised or lowered, the rotating ring 521 and the second connecting rod 522 drive the main shaft 510 to rise or fall.

4 , the foamer 400 mentioned above includes a foaming stirring shaft 410 and a flexible stirring belt 430 installed on the outer circumference of the lower end of the foaming stirring shaft 410. When the foaming stirring shaft 410 rotates, the flexible stirring belt 430 thereon is opened by the centrifugal force, thereby foaming the foaming liquid at high speed. An air hole 420 is opened on the circumference near the lower end of the foaming stirring shaft 410. The foaming stirring shaft 410 is a cavity structure, and compressed gas is introduced into the upper end of the foaming stirring shaft 410 so that the compressed gas can enter the concrete mixing barrel 310 through the air hole 420.

Preferably, the flexible stirring belt 430 is made of carbon fiber.

As shown in FIG1 , the lightweight concrete production equipment provided in this embodiment also includes a bracket assembly 100, which includes a base 110 supported below a concrete mixing barrel 310, a column 120 fixed above one side of the base 110, and a mounting frame 130 provided at the upper end of the column 120 close to one side of the base 110, and a protective shell 600 for protecting the drive assembly 200 is provided on the mounting frame 130.

As shown in Figures 1, 3, 9 and 10, the above-mentioned driving assembly 200 includes: the upper end of the foaming stirring shaft 410 passes through the upper surface of the mounting frame 130, and the upper surface of the mounting frame 130 is provided with a main driving structure 210 for driving the foaming stirring shaft 410 to rotate. The preferred main driving structure 210 includes a motor 213 assembled above the mounting frame 130, a driving gear 212 fixed to the upper end of the motor 213, and a driven gear 211 fixed to the upper end of the foaming stirring shaft 410, and the driven gear 211 is meshed with the driving gear 212, and then when the motor 213 drives the driving gear 212 to rotate, the driven gear 211 can drive the foaming stirring shaft 410 to rotate.

In addition, an outer shaft 280 is rotatably installed outside the circumference of the foaming stirring shaft 410, and a first connecting rod 270 is fixedly provided on one side of the lower end of the outer shaft 280, and a middle sleeve 231 is fixedly provided on the other end of the first connecting rod 270, and the middle sleeve 231 is arranged on the main shaft 510, so that when the outer shaft 280 rotates, it can drive the middle sleeve 231 and the main shaft 510 to make a circular motion with the first connecting rod 270 as a radius, thereby realizing the revolution of the concrete mixer 500.

As shown in Figures 9 and 10, in order to realize the rotation of the outer shaft 280, an active umbrella wheel 291 is provided near the upper end of the foaming stirring shaft 410, and a steering umbrella wheel 292 is meshed on one side of the active umbrella wheel 291, so that the steering umbrella wheel 292 can rotate in the vertical direction. A driven umbrella wheel 260 is fixed near the upper end of the outer shaft 280, and a secondary deceleration umbrella wheel 250 is meshed on one side of the driven umbrella wheel 260 near the steering umbrella wheel 292. A primary deceleration gear set 240 is provided between the secondary deceleration umbrella wheel 250 and the steering umbrella wheel 292. The primary deceleration gear set 240 includes a small gear coaxial with the steering umbrella wheel 292 and a large gear coaxial with the secondary deceleration umbrella wheel 250. The small gear and the large gear are meshed. In the present solution, when the foaming stirring shaft 410 rotates, the active umbrella wheel 291 can be driven to rotate. When the active umbrella wheel 291 rotates, the small gear can be driven to rotate by the action of the steering umbrella wheel 292. During the rotation of the small gear, the large gear can be driven to rotate, thereby realizing the rotation of the secondary deceleration umbrella wheel 250. When the secondary deceleration umbrella wheel 250 rotates, the driven umbrella wheel 260 can be driven to rotate, thereby realizing the rotation of the outer shaft 280. Due to the above-mentioned multi-stage deceleration, the rotation speed of the foaming stirring shaft 410 is greater than the rotation speed of the outer shaft 280, so that the foaming speed of the foamer 400 is greater than the mixing speed of the concrete mixer 500, thereby avoiding the foam breakage caused by the excessive speed when the foam and concrete are mixed.

In addition, in order to realize the self-rotation of the main shaft 510, a fixed gear 220 is preferably fixed on the lower surface of the bracket assembly 100 at a position opposite to the center of the outer shaft 280, and a through hole is opened in the middle of the fixed gear 220 for the outer shaft 280 to pass through, and a rolling wheel 230 is fixed to the upper end of the middle sleeve 231, and the rolling wheel 230 is meshed with the fixed gear 220; in this solution, when the outer shaft 280 drives the main shaft 510 to rotate, the rolling wheel 230 can roll along the fixed gear 220, so that the rolling wheel 230 can rotate, and when it rotates, it can drive the main shaft 510 to rotate.

It should be noted that, since the main shaft 510 needs to be driven up when the foam mixing barrel 320 rises, the main shaft 510 will inevitably produce a relative displacement with the rolling wheel 230 in the vertical direction. Therefore, the present solution provides an integrated second side protrusion 513 on the side of the main shaft 510 close to the upper part, and the middle holes of the rolling wheel 230 and the middle sleeve 231 are matched with the main shaft 510 and the second side protrusion 513. A compensation hole 700 is provided on the mounting frame 130 for the main shaft 510 to pass through, that is, the main shaft 510 can rely on the second side protrusion 513 to achieve synchronous rotation with the rolling wheel 230, and the lifting and lowering of the main shaft 510 does not affect the synchronous rotation of the two.

On the other hand, the present invention also provides a method for producing lightweight concrete using a lightweight concrete production device, comprising the following steps:

S1, foaming the foaming liquid in the foam mixing barrel 320, and mixing cement, water, sand and aggregate in the concrete mixing space to obtain the required foam and concrete;

S2, lifting the foam mixing barrel 320 to separate the foam mixing barrel 320 from the concrete mixing barrel 310, so that there is no obstruction between the obtained foam and the concrete;

S3, the concrete mixer 500 and the foamer 400 work together to mix the foam with the concrete.

And the above S3 includes: when the foam stirring barrel 320 rises, the stirring blade 550 is driven to rotate to a vertical state through the blade angle adjustment member to reduce the shear force of the stirring blade 550 on the foam.

When in use (working), the foaming liquid is fed from the upper end of the foam mixing barrel 320, and cement, water, sand, and aggregate are fed from the top of the concrete mixing space. The motor 213 is driven to make the foaming mixing shaft 410 rotate at a high speed, and compressed gas is introduced into its upper end. The gas enters the foaming liquid from the air hole 420. The high-speed rotating foaming mixing shaft 410 drives the flexible stirring belt 430 to rotate, thereby realizing high-speed foaming of the foaming liquid. At the same time, the main shaft 510 rotates while revolving, which can stir the concrete. When the foaming is completed, the lifting structure pushes the foam mixing barrel upward. 320, so that there is no barrier between the concrete and the foam, the two can contact each other, and when the foam mixing barrel 320 rises, the main shaft 510 can be driven to move upward through the synchronous structure 520, and when it moves upward, the protrusion 564 slides in the spiral groove 565, thereby pushing the adjustment shaft 563 to rotate through the spiral groove 565, and when the adjustment shaft 563 rotates, it can drive the main adjustment umbrella wheel 561 to rotate, so as to adjust the mixing angle of the mixing blade 550 to a vertical state. At this time, the mixing blade 550 can minimize the shear force when mixing the foam entering the concrete mixing space.

At the same time, when the main shaft 510 rotates, the flexible stirring blades 540 can also stir the concrete, and after the foam stirring barrel 320 rises, the flexible stirring blades 540 can enter the space below the foam stirring barrel 320 due to the action of centrifugal force, to capture the foam and net the foam into the concrete mixing space, and under the high-speed operation of the foamer 400, the foam will also enter the concrete mixing space due to the action of centrifugal force, and the concrete will also enter the position of the foam due to its own flow, so as to achieve uniform mixing.

It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A lightweight concrete production equipment, characterized by comprising: A concrete mixing barrel (310), wherein a foam mixing barrel (320) is arranged inside the concrete mixing barrel (310), and the bottom of the foam mixing barrel (320) is pressed onto the bottom surface of the concrete mixing barrel (310), so that a concrete mixing space is formed between the concrete mixing barrel (310) and the foam mixing barrel (320); A lifting structure, the lifting structure is arranged below the concrete mixing barrel (310), and the lifting structure is used to drive the foam mixing barrel (320) to separate upward from the bottom surface of the concrete mixing barrel (310), so that the foam in the foam mixing barrel (320) contacts the concrete in the concrete mixing space; A foamer (400), the foamer (400) is located in the foam stirring barrel (320), and the foamer (400) is used to stir and foam the liquid in the foam stirring barrel (320); A concrete mixer (500) is located in a concrete mixing space and is used to mix concrete in the concrete mixing space and mix concrete and foam. 2. The lightweight concrete production equipment according to claim 1, characterized in that: The concrete mixer (500) comprises a rotating shaft and a mixing blade (550) arranged outside the circumference of the lower end of the rotating shaft, and the mixing blade (550) is provided with at least one blade. A blade angle adjustment member is provided between the mixing blade (550) and the upper end of the foam mixing barrel (320), so that when the foam mixing barrel (320) is lifted, the mixing blade (550) is in a vertical state, so as to reduce the shear force of the mixing blade (550) on the foam. 3. A lightweight concrete production equipment according to claim 2, characterized in that: the concrete mixer (500) further comprises a flexible stirring blade (540), the flexible stirring blade (540) comprising a positioning ring (541) fixed on the rotating shaft, a flexible rope (542) installed on the outer surface of the positioning ring (541), and a flexible net (543) provided at the other end of the flexible rope (542); The stretched lengths of the flexible net (543) and the flexible rope (542) enable the flexible net to reach the center of the foam mixing barrel (320), so that the flexible net (543) can net the foam into the concrete mixing space. 4. A lightweight concrete production equipment according to claim 2 or 3, characterized in that: the blade angle adjustment member comprises: The rotating shaft comprises a main shaft (510) and a cavity shaft (530), the lower end of the main shaft (510) is inserted into the cavity shaft (530) from the upper end of the cavity shaft (530), and first side protrusions (511) are fixedly provided on both sides of the main shaft (510) near the lower end, and slide grooves (531) are provided on both sides of the cavity shaft (530), and the first side protrusions (511) are located in the slide grooves (531), so that the rotation of the main shaft (510) can drive the cavity shaft (530) to rotate, and a spring (570) is installed between the lower end of the first side protrusion (511) and the lower end of the cavity shaft (530); A synchronization structure (520), wherein the synchronization structure (520) connects the main shaft (510) and the foam stirring barrel (320) so that the main shaft (510) rises and falls along with the foam stirring barrel (320); The adjustment structure (560) comprises a bottom cylinder (568) fixed to the lower end of the cavity shaft (530); a main adjustment umbrella wheel (561) is rotatably mounted in the middle of the lower end of the bottom cylinder (568); at least one driven adjustment umbrella wheel (562) is meshed with the main adjustment umbrella wheel (561); a connecting shaft (567) is fixed in the middle of the driven adjustment umbrella wheel (562); the other end of the connecting shaft (567) is located outside the bottom cylinder (568) and is connected to the bottom cylinder (568). The stirring blade (550) is fixedly connected, an adjustment shaft (563) is fixed above the middle of the main adjustment bevel wheel (561), and a spiral groove (565) is provided on the outer surface of the adjustment shaft (563), a convex block (564) is fixedly provided on one side of the inner wall of the groove (512), and the other end of the convex block (564) is inserted into the spiral groove (565), and when the main shaft (510) is raised or lowered, the convex block (564) slides in the spiral groove (565) to rotate the adjustment shaft (563). 5. A lightweight concrete production equipment according to claim 4, characterized in that it also includes a driving assembly (200), wherein the driving assembly (200) is used to drive the foamer (400) to rotate along the center of the foam mixing barrel (320), and the driving assembly (200) is used to drive the concrete mixer (500) to rotate along the main shaft (510) and to revolve around the center of the foam mixing barrel (320). 6. The lightweight concrete production equipment according to claim 5, characterized in that: the synchronization structure (520) comprises: A rotating ring (521), the rotating ring (521) is rotatably mounted on the upper end of the circumference of the foam stirring barrel (320); A limiting convex ring (524), wherein the limiting convex ring (524) is arranged on the circumference of the main shaft (510); A limiting platform (523), wherein the limiting platform (523) is rotatably mounted on the outside of the limiting convex ring (524) via a bearing; A second connecting rod (522), wherein the second connecting rod (522) is fixedly arranged between the rotating ring (521) and the limiting platform (523); When the concrete mixer (500) revolves, the rotating ring (521) rotates on the foam mixing barrel (320); when the foam mixing barrel (320) rises or falls, the rotating ring (521) and the second connecting rod (522) drive the main shaft (510) to rise or fall. 7. A lightweight concrete production equipment according to claim 5 or 6, characterized in that: the foamer (400) includes a foaming stirring shaft (410), and a flexible stirring belt (430) installed on the outer circumference of the lower end of the foaming stirring shaft (410), and the foaming stirring shaft (410) is provided with air holes (420) on the circumference near the lower end, the foaming stirring shaft (410) is a cavity structure, and compressed gas is introduced into the upper end of the foaming stirring shaft (410) so that the compressed gas enters the concrete mixing barrel (310) through the air holes (420). 8. A lightweight concrete production equipment according to claim 7, characterized in that: the lightweight concrete production equipment further comprises a bracket assembly (100), the bracket assembly (100) comprising a base (110) supported below the concrete mixing barrel (310), a column (120) fixed above one side of the base (110), and a mounting frame (130) provided at the upper end of the column (120) close to one side of the base (110); The driving assembly (200) comprises: The upper end of the foaming stirring shaft (410) passes through the upper surface of the mounting frame (130), and the upper surface of the mounting frame (130) is provided with a main drive structure (210) for driving the foaming stirring shaft (410) to rotate. The foaming stirring shaft (410) is rotatably mounted with an outer shaft (280) on the outer circumference, and a first connecting rod (270) is fixedly provided on one side of the lower end of the outer shaft (280), and a middle sleeve (231) is fixedly provided on the other end of the first connecting rod (270), and the middle sleeve (231) is arranged on the main shaft (510), so that when the outer shaft (280) rotates, it drives the middle sleeve (231) and the main shaft (510) to make a circular motion with the first connecting rod (270) as a radius; A driving umbrella wheel (291) is provided near the upper end of the foaming stirring shaft (410), and a steering umbrella wheel (292) is meshed on one side of the driving umbrella wheel (291); a driven umbrella wheel (260) is fixedly provided near the upper end of the outer shaft (280), and a secondary deceleration umbrella wheel (250) is meshed on one side of the driven umbrella wheel (260) near the steering umbrella wheel (292); a primary deceleration gear set (240) is provided between the secondary deceleration umbrella wheel (250) and the steering umbrella wheel (292); the primary deceleration gear set (240) comprises a pinion coaxial with the steering umbrella wheel (292) and a large gear coaxial with the secondary deceleration umbrella wheel (250), and the pinion and the large gear are meshed; The rotation speed of the foaming and stirring shaft (410) is greater than the rotation speed of the outer shaft (280), so that the foaming speed of the foamer (400) is greater than the revolution mixing speed of the concrete mixer (500); A fixed gear (220) is fixed on the lower surface of the bracket assembly (100) at a position opposite to the center of the outer shaft (280); a through hole is provided in the middle of the fixed gear (220) for the outer shaft (280) to pass through; a rolling wheel (230) is fixed at the upper end of the middle sleeve (231); and the rolling wheel (230) is meshed with the fixed gear (220); An integral second side protrusion (513) is provided on one side of the main shaft (510) close to the upper portion; the middle holes of the rolling wheel (230) and the middle sleeve (231) fit with the main shaft (510) and the second side protrusion (513); and a compensation hole (700) for the main shaft (510) to pass through is provided on the mounting frame (130). 9. A method for producing lightweight concrete using the lightweight concrete production equipment according to any one of claims 1 to 8 according to claim 1, characterized in that it comprises the following steps: S1, foaming the foaming liquid in the foam mixing barrel (320), and mixing cement, water, sand and aggregate in the concrete mixing space to obtain the required foam and concrete; S2, lifting the foam mixing barrel (320) to separate the foam mixing barrel (320) from the concrete mixing barrel (310) so that there is no obstruction between the obtained foam and the concrete; S3, the concrete mixer (500) and the foamer (400) work together to mix the foam with the concrete. 10. The method for producing lightweight concrete according to claim 9, characterized in that: said S3 comprises: When the foam stirring barrel (320) rises, the stirring blade (550) is driven to rotate to a vertical state through the blade angle adjustment member, so as to reduce the shear force of the stirring blade (550) on the foam.