CN112829067A

CN112829067A - Stirring drum for gravity type stirrer and method

Info

Publication number: CN112829067A
Application number: CN202110241076.3A
Authority: CN
Inventors: 徐蒙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-05-25

Abstract

The invention discloses a stirring cylinder for a free-fall stirrer and a method thereof, wherein the stirring cylinder comprises a stirring cylinder body, two partition plates symmetrically arranged along the vertical direction are fixedly connected to the inner wall of the stirring cylinder body, two arc-shaped cavities symmetrically arranged along the horizontal direction are formed in the side wall of the stirring cylinder body, the two arc-shaped cavities are communicated through a channel, two sliding plugs are hermetically and slidably connected in the arc-shaped cavities, a telescopic air bag is fixedly connected to the inner wall of the stirring cylinder body, and a supporting plate is fixedly connected to one end of the telescopic air bag. According to the invention, the center of gravity of the whole mixing drum is slightly positioned above the axis of the mixing drum, so that the mass of the upper part and the mass of the lower part of the mixing drum are equal, and a slightly larger centrifugal force is generated above the mixing drum when the mixing drum rotates, so that a small upward acting force is generated on the whole mixing drum, and therefore, larger impact on the supporting part is reduced when the lower part of the mixing drum is heavier, and the service life of the mixer is prolonged.

Description

Stirring drum for gravity type stirrer and method

The invention relates to a divisional application of a stirring cylinder for a free fall type stirrer, which has an application date of 2019, 11, 15 and an application number of CN 201911116630.4.

Technical Field

The invention relates to the technical field of relevant equipment of construction machinery, in particular to a stirring cylinder for a free-fall stirrer and a method.

Background

The self-falling type mixer is characterized in that a partition plate or a blade is arranged in a mixing drum, the mixing drum on the self-falling type mixer rotates at a certain speed during work, concrete at the bottom in the mixing drum is lifted to a certain height and then falls at the bottom in the mixing drum under the action of gravity, and all parts of the concrete successively fall down to uniformly mix all parts of the concrete.

This kind of design makes the most of concrete fall on the interior bottom of churn all the time, the holistic focus of churn is located the axle center below of churn all the time, the lower part of churn is excessive overweight, lower part overweight churn is when rotating along with the churn, the support component that can make lower part receive great centrifugal force and strike, concrete also can cause the impact in the continuous whereabouts in-process in the churn simultaneously, further accelerate the loss of lower part support component, thereby shorten the life of mixer.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a stirring cylinder for a free fall type stirrer and a method.

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

the stirring cylinder for the gravity type stirrer comprises a stirring cylinder body, wherein two partition plates symmetrically arranged in the vertical direction are fixedly connected to the inner wall of the stirring cylinder body, two arc-shaped cavities symmetrically arranged in the horizontal direction are formed in the side wall of the stirring cylinder body and are communicated through a channel, two sliding plugs are hermetically and slidably connected to the arc-shaped cavities, a telescopic air bag is fixedly connected to the inner wall of the stirring cylinder body, a supporting plate is fixedly connected to one end of the telescopic air bag, and the other end of the telescopic air bag is communicated with the inner parts of the arc-shaped cavities through a through hole.

Preferably, the inner wall of the mixing drum body is coaxially and fixedly connected with a cylinder, the inner wall of the cylinder is coaxially and fixedly connected with a connecting rod, the side wall of the cylinder is provided with a plurality of water outlet holes, the water outlet holes are internally and slidably connected with sliding blocks in a sealing mode, and the sliding blocks are elastically connected to the side wall of the connecting rod through springs.

Preferably, a conduit for communicating the arc-shaped cavity with the interior of the cylinder is embedded in the inner wall of the mixing drum body, and a one-way valve is installed at the communication position of the conduit and the cylinder.

The invention has the following beneficial effects:

1. the water in the arc-shaped cavity below is extruded into the arc-shaped cavity above the stirring drum in the falling process of the concrete, so that the gravity center of the stirring drum is slightly positioned above the axis of the stirring drum, the mass of the upper part and the mass of the lower part of the stirring drum are equal, and a slightly large centrifugal force is generated above the stirring drum when the stirring drum rotates, so that a small upward acting force in the direction is generated on the whole stirring drum, and therefore, large impact on a supporting part is brought when the lower part of the stirring drum is heavier, and the service life of the stirring machine is prolonged;

2. through the arrangement of the cylinder which is coaxial with the stirring cylinder, the cylinder also rotates when the stirring cylinder rotates, centrifugal force is generated to enable the sliding block to extend out of the cylinder, and concrete falling from the upper side can be stirred and mixed, so that the mixing efficiency of the concrete is improved, the stirring time of the stirrer is reduced, and energy consumption is reduced;

3. through when the churn body stall, the slider loses centrifugal force's promotion and the drum retracts, and the water of the arc intracavity of top is gradually by pipe flow direction drum to by the concrete of apopore flow direction below on the drum, can shut down the rest by the master worker when, add water treatment to the concrete, avoid not mixing at the concrete and gradually condense together often.

Drawings

FIG. 1 is a schematic structural diagram of a mixing drum and a method for a free fall mixer according to the present invention;

FIG. 2 is a schematic cross-sectional view at A-A of a mixing drum for a free-fall mixer and a method thereof according to the present invention;

fig. 3 is an enlarged schematic view of a mixing drum for a free fall mixer and a structure at position B of the method according to the present invention.

In the figure: 1 mixing drum body, 2 arc-shaped cavities, 3 sliding plugs, 4 telescopic air bags, 5 supporting plates, 6 partition plates, 7 through holes, 8 cylinders, 9 connecting rods, 10 sliding blocks, 11 springs, 12 water outlet holes, 13 guide pipes and 14 one-way valves.

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.

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. 1-3, a mixing drum for a free-fall mixer and a method thereof, the mixing drum comprises a mixing drum body 1, two partition plates 6 symmetrically arranged along the vertical direction are fixedly connected to the inner wall of the mixing drum body 1, two arc-shaped cavities 2 symmetrically arranged along the horizontal direction are formed in the side wall of the mixing drum body 1, the two arc-shaped cavities 2 are communicated through a channel 15, two sliding plugs 3 are hermetically and slidably connected to the inner sides of the arc-shaped cavities 2, a telescopic air bag 4 is fixedly connected to the inner wall of the mixing drum body 1, a supporting plate 5 is fixedly connected to one end of the telescopic air bag 4, and the other end of the telescopic air bag 4 is communicated with the inner parts of the arc.

It should be noted that, two water filling ports for respectively filling water into the two arc-shaped cavities 2 are formed in the mixing drum body 1, and a switch valve is installed in the water filling port.

Coaxial fixedly connected with drum 8 on the inner wall of churn body 1, coaxial fixedly connected with connecting rod 9 on the inner wall of drum 8, a plurality of apopores 12 have been seted up to the lateral wall of drum 8, and apopore 12 internal seal sliding connection has slider 10, and slider 10 passes through spring 11 elastic connection on the lateral wall of connecting rod 9.

It is worth mentioning that the slider 10 has certain length for when the drum 8 rotates along with the churn body 1, the slider 10 stretches out the drum 8 and can stir and mix the concrete of whereabouts, and the slider 10 still can seal the apopore 12 and avoid water to flow out from the drum 8 when stretching out the drum 8.

Furthermore, because the rotation speed of the free-fall mixer is slow when the free-fall mixer works, the slide block 10 is made of tungsten steel material with high density, so that the mass of the slide block 10 is large, and the slide block 10 can generate large centrifugal force at the slow rotation speed to extend out of the cylinder 8.

A conduit 13 communicating the arc-shaped cavity 2 and the cylinder 8 is embedded on the inner wall of the mixing drum body 1, and a one-way valve 14 is installed at the communication position of the conduit 13 and the cylinder 8.

It should be noted that the check valve 14 only allows water to flow from the conduit 13 to the inside of the cylinder 8, the pipe diameter of the conduit 13 is small, and the pipe diameter of the conduit 13 is much smaller than the inner diameter of the channel 15, so when the mixer drum body 1 stops rotating, the water flow from the upper arc-shaped cavity 2 to the cylinder 8 is small, which not only saves water resources, but also avoids the water flowing to the concrete from being too much to cause the quality of the concrete to be unqualified.

And this device is at the use, puts into the concrete that needs mix earlier in to churn body 1, adds water to the filler of the arc chamber 2 of below again, and the great passageway 15 flow direction of following the great passageway of internal diameter of the great water of the great majority like this arc chamber 2 of top, and avoid water to flow out from apopore 12 on the drum 8.

When the device is used, concrete at the bottom in the mixing drum body 1 can press down one of the supporting plates 5 and the telescopic air bag 4, and water in the arc-shaped cavity 2 below can be completely squeezed into the arc-shaped cavity 2 above.

The mixing drum body 1 rotates along the axis of the mixing drum body under the driving action of an external driving part, so that concrete at the bottom in the mixing drum body 1 can be conveyed upwards and falls down after being conveyed to a certain height, and the other supporting plate 5 and the telescopic air bag are extruded, so that the arc-shaped cavity 2 above the mixing drum body 1 is enabled to store a large amount of water all the time, and the gravity center of the mixing drum body 1 can be slightly positioned above the axis of the mixing drum body.

Simultaneously make in the time of 1 rotations of churn body also take place to rotate rather than coaxial drum 8 that sets up, each slider 10 stretches out in following apopore 12 under the effect of centrifugal force, and like this at the in-process that the concrete was fallen by the eminence, rotatory drum 8 and the slider 10 that stretches out can stir the concrete that falls and mix to improve the mixing efficiency of concrete.

When the mixing drum body 1 stops rotating, the slider 10 loses the pushing of centrifugal force, and under the elastic force and the inertia effect of the spring 11, the slider 10 continuously goes in and out the cylinder 8 through the water outlet hole 12, and retracts into the cylinder 8 completely after a period of time, at the moment, the water in the upper arc-shaped cavity 2 flows to the cylinder 8 through the conduit 13, and flows on the concrete at the bottom in the mixing drum body 1 through the water outlet hole 12, when a worker has a rest and closes the mixer, water is slowly added to the concrete in the mixing drum body 1, and the evaporation of water in the concrete is avoided, so that condensation occurs.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A stirring cylinder for a free-fall stirrer comprises a stirring cylinder body (1), wherein two partition plates (6) symmetrically arranged along the vertical direction are fixedly connected to the inner wall of the stirring cylinder body (1), and the stirring cylinder is characterized in that two arc-shaped cavities (2) symmetrically arranged along the horizontal direction are formed in the side wall of the stirring cylinder body (1), the two arc-shaped cavities (2) are communicated through a channel (15), two sliding plugs (3) are hermetically and slidably connected in the arc-shaped cavities (2), a telescopic air bag (4) is fixedly connected to the inner wall of the stirring cylinder body (1), one end of the telescopic air bag (4) is fixedly connected with a supporting plate (5), and the other end of the telescopic air bag (4) is communicated with the interior of the arc-shaped cavity (2) through a through hole (7);

coaxial fixedly connected with drum (8) on the inner wall of churn body (1), coaxial fixedly connected with connecting rod (9) on the inner wall of drum (8), a plurality of apopores (12) have been seted up to the lateral wall of drum (8), apopore (12) inner seal sliding connection has slider (10), slider (10) pass through spring (11) elastic connection on the lateral wall of connecting rod (9).

2. The stirring cylinder for the free-fall stirrer according to claim 1, wherein a conduit (13) for communicating the arc-shaped cavity (2) with the cylinder (8) is embedded in the inner wall of the stirring cylinder body (1), and a one-way valve (14) is installed at the communication position of the conduit (13) and the cylinder (8).

3. The mixing drum and the method for the free fall mixer according to claim 1 are characterized in that when in use, the concrete at the bottom in the mixing drum body (1) presses down one of the supporting plates (5) and the telescopic air bag (4) to completely extrude the water in the lower arc-shaped cavity (2) into the upper arc-shaped cavity (2);

the mixing drum body (1) rotates along the axis of the mixing drum body under the driving action of an external driving part, so that concrete at the bottom in the mixing drum body (1) can be conveyed upwards, and after the concrete is conveyed to a certain height, the concrete falls downwards and extrudes the other supporting plate (5) and the telescopic air bag, so that the arc-shaped cavity (2) above the mixing drum body (1) always stores a large amount of water, and the gravity center of the mixing drum body (1) can be slightly positioned above the axis of the mixing drum body;

meanwhile, the mixing drum body (1) rotates, the cylinder (8) coaxially arranged with the mixing drum body also rotates, and each sliding block (10) extends out of the water outlet hole (12) under the action of centrifugal force, so that the falling concrete can be mixed by the rotating cylinder (8) and the extending sliding blocks (10) in the process of falling from a high place, and the mixing efficiency of the concrete is improved;

and when churn body (1) stall, slider (10) lose centrifugal force's promotion, and under the elasticity and the inertial action of spring (11), slider (10) are continuous to pass in and out drum (8) by apopore (12), and retract in drum (8) completely after a period of time, the water in top arc chamber (2) flows to drum (8) by pipe (13) this moment, and flow on the concrete of bottom in churn body (1) by apopore (12), can be when the master worker rest and close the mixer, slowly add water to the concrete in churn body (1) and avoid the moisture evaporation in the concrete and take place to condense.