CN105415498B - A kind of small vibrating concrete mixer - Google Patents

Abstract

The invention discloses a small vibrating concrete mixer, which comprises a mixing bucket, a frame, a circular cover, a stirring shaft, a motor and a vibrating device. Cushion pads are arranged on the frame; the stirring shaft includes: a main shaft and a secondary shaft, and the main shaft is vertically arranged in the mixing tank, including an upper main shaft and a lower main shaft, and the lower main shaft is a hollow cylinder, which There are water inlet pipes, threads and pressure nozzles on the top, and multiple auxiliary shafts are vertically fixed on the main shaft. The auxiliary shafts are solid cylinders with external threads, and their length first increases and then decreases from top to bottom; The vibrating device includes a vibrating rod and a fixing device, one end of the vibrating rod is placed inside the upper part of the mixing bucket through the circular cover, and the other end is fixed by the second support plate and the first support plate, so that The vibrating rod is at a certain distance from the inner wall of the stirring barrel so as not to interfere with the stirring shaft. The invention has the advantages of high stirring efficiency, high concrete strength, convenient operation and maintenance, low noise and the like.

Description

A small vibrating concrete mixer

technical field

The invention relates to a mixer. More specifically, the present invention relates to a small vibrating concrete mixer.

Background technique

Concrete mixer is a machine that mixes cement, sand aggregate and water to make concrete mixture. It is a special equipment in industrial production and civil construction projects such as water conservancy, bridges, and highways. With the vigorous development of highway traffic construction and civil construction, concrete mixers have developed rapidly, and with the continuous improvement of construction quality and operating efficiency, higher requirements have been put forward for mixing equipment.

At present, commercial concrete on the market is mostly made by mixing with large-scale mixers. Due to the limitation of equipment cost, processing site and transportation conditions, large-scale concrete mixers are not suitable for small and medium-scale buildings and areas with backward transportation conditions, while small-scale mixers have uneven mixing of materials. , low strength, low work efficiency, inconvenient transportation, high noise during use and short service life and many other problems. Therefore, in order to solve the above problems, a new technical solution is provided.

Contents of the invention

An object of the present invention is to solve at least the above problems and/or disadvantages and to provide at least the advantages as will be described hereinafter.

One object of the present invention is to provide a small vibrating concrete mixer. By adding a vibrating device inside the mixing tank, it can effectively prevent the cement clumping phenomenon during the mixing process of concrete, prevent the concrete from adhering to the inner wall of the mixing tank and the mixing shaft, and improve the mixing efficiency. Efficiency, at the same time, adding a vibrating device is also beneficial to reduce the air content in the concrete and improve the strength of the concrete.

Another purpose of the present invention is to install a water inlet pipe and a pressure nozzle on the lower main shaft, so that the water can be dispersed more evenly, and the concrete mixing time can be shortened. Concrete coagulates, improving cleaning efficiency.

Another purpose of the present invention is to effectively avoid the occurrence of low-efficiency mixing areas by setting different lengths of the stirring auxiliary shafts and nesting threads on the stirring shafts, improve the quality of concrete and the mixing efficiency, and prevent the stirring blades from breaking and damaging the stirring shafts at the same time And mixing barrel, improve the service life of the mixer.

In order to achieve these objects and other advantages according to the present invention, a small vibrating concrete mixer is provided, comprising,

A mixing tank, which includes an integrally formed upper part and a lower part, the upper part is cylindrical, the lower part is hemispherical, and the bottom is provided with a discharge port;

The frame is used to support the mixing barrel, including a first frame and a second frame, the upper part of the second frame is connected with the lower part of the mixing barrel, and the lower part is connected with the first frame through a buffer pad ;

A circular cover, which is placed on the top of the mixing tank, its edge is connected to the top of the mixing tank, so that the mixing tank is airtight, and a feeding port is arranged on it;

Stirring shaft, which includes:

The main shaft, which is vertically arranged in the mixing bucket, includes an integrally formed upper main shaft and a lower main shaft, wherein,

The upper spindle is a solid cylinder;

The lower main shaft is a hollow cylinder, including a hollow part and a solid part. The top end of the lower main shaft passes through the circular cover so that the stirring shaft is fixed inside the mixing bucket. The lower main shaft is located in the A water inlet pipe is provided on one side outside the circular cover, and one end of the water inlet pipe communicates with the hollow part of the lower main shaft, and a control valve and a flow meter are provided at the other end, and a pressure nozzle is connected to the hollow part of the lower main shaft. The pressure nozzle communicates with the inside of the mixing barrel through the solid part of the lower main shaft, and the solid part of the lower main shaft is provided with threads;

The auxiliary shaft is vertically fixed on the main shaft, the auxiliary shaft is a solid cylinder, and the auxiliary shaft is provided with threads, which include the first thread arranged in sequence from top to bottom and arranged in pairs on both sides of the main shaft. A subshaft, a second subshaft, a third subshaft, a fourth subshaft and a fifth subshaft, wherein the lengths of the first subshaft, the second subshaft and the third subshaft increase sequentially is larger, the lengths of the third subshaft, the fourth subshaft and the fifth subshaft decrease in sequence;

A first motor, which is fixed above the circular cover, drives the main shaft to rotate through a belt pulley connecting device;

A vibrating device comprising:

a vibrating rod, which passes through the circular cover and is placed inside the upper part of the mixing tank, and is at a certain distance from the inner wall of the mixing tank so that the vibrating rod does not interfere with the stirring shaft;

The fixing device includes a first support plate vertically arranged on the inner wall of the mixing bucket, and a second support plate fixedly connecting the vibrating rod with the first support plate;

The second motor, which is fixed on the upper side of the circular cover, drives the vibrating rod to vibrate through a coupling.

Preferably, the pressure nozzle is at an angle of 0-75 degrees to the horizontal direction.

Preferably, the pressure nozzle communicates with the inside of the mixing barrel through the threaded protrusion of the solid part of the lower main shaft.

Preferably, the protrusion of the thread is 5-10cm wide, the thread depth is 6-15cm, and the thread pitch is 15-30cm.

Preferably, buffer gaskets are provided at the connection between the first support plate and the mixing bucket, the connection between the second support plate and the vibrating rod and the first support plate.

Preferably, the discharge port is provided with a discharge port door, the edge of the discharge port door is provided with an elastic sealing strip, one end of the discharge port door is hinged to the bottom of the mixing tank, and the other end is fixed to the bottom of the mixing tank by a manual valve. above the mixing bowl.

Preferably, a feed port door is provided above the feed port, and the feed port door is hinged on the circular cover.

Preferably, a speed reducer is provided between the pulley connection device and the main shaft.

Preferably, a controller is provided inside the upper end of the first frame, and a control panel is provided on its surface, and a first switch, a second switch and a third switch are provided on the control panel, and the first switch is controlled by the controller Control the operation of the first motor, the second switch controls the operation of the second motor through the controller, the third switch controls the opening or closing of the control valve through the controller, and the control panel is provided with a display A display that describes the flow rate of the flowmeter.

The present invention at least includes the following beneficial effects:

First, adding a vibrating device inside the mixing tank can effectively prevent the cement clumping phenomenon during the mixing process of the concrete, prevent the concrete from adhering to the inner wall of the mixing tank and the stirring shaft, and improve the mixing efficiency. The air content in the concrete increases the strength of the concrete.

Second, the water inlet pipe and pressure nozzle are installed on the lower main shaft, which can make the water disperse more evenly and shorten the concrete mixing time. After the mixing is completed and unloading, the water inlet control valve can also be opened to clean the inside of the mixing tank to prevent the concrete from coagulating and improve the quality of the concrete. cleaning efficiency.

Third, setting different mixing shaft lengths and nesting threads on the mixing shaft can effectively avoid the generation of low-efficiency mixing areas, improve concrete quality and mixing efficiency, and prevent the mixing blades from breaking, damaging the mixing shaft and mixing barrel, and improving The service life of the mixer.

Fourth, a buffer pad is nested between the first frame and the second frame, which can form a certain buffer for the mixing barrel and the frame when the mixer is in use, which is beneficial to improve the service life of the mixer.

Fifth, a discharge port door is provided at the bottom of the mixing tank, a circular cover is provided at the top, and a feed port door is provided on one side of the cover body, which is convenient for feeding and discharging materials. In addition, when the mixer is in use, the feed port door and the discharge port door Closed, the mixing barrel is in a closed state, which can effectively prevent the stirring noise from spreading outside and reduce the stirring noise.

Sixth, an elastic sealing strip is installed on the edge of the discharge port to prevent liquid leakage during mixing or cleaning, and to ensure accurate distribution of concrete components.

Seventh, a controller is installed inside the upper end of the first rack, and the controller controls the operation of the motor and the opening or closing of the control valve on the water inlet pipe, which is convenient for workers to operate. In addition, there is a flow display screen on the control panel of the controller, which can accurately Control the amount of water added.

Other advantages, objectives and features of the present invention will partly be embodied through the following descriptions, and partly will be understood by those skilled in the art through the research and practice of the present invention.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is the structure schematic diagram of stirring main shaft of the present invention;

Among them, 1. The first frame, 2. The buffer pad, 3. The second frame, 4. The mixing tank, 5. The discharge port door, 6. The manual valve, 7. The circular cover, 8. The feed port Door, 9, stirring main shaft, 10, first sub-shaft, 11, second sub-shaft, 12, third sub-shaft, 13, fourth sub-shaft, 14, fifth sub-shaft, 15, thread, 16, first Motor, 17, belt pulley connecting device, 18, speed reducer, 19, vibrator, 20, first support plate, 21, second support plate, 22, second motor, 23, controller, 24, upper main shaft, 25, Lower main shaft, 26, water inlet pipe, 27, control valve, 28, pressure nozzle.

detailed description

The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

It should be understood that terms such as "having", "comprising" and "including" as used herein do not entail the presence or addition of one or more other elements or combinations thereof.

As shown in Fig. 1 and Fig. 2, a kind of small vibrating concrete mixer of the present invention comprises,

Mixing barrel 4, it comprises the upper part and the lower part of one-piece molding, and described upper part is cylindrical, and described lower part is hemispherical, and its bottom is provided with outlet; produce dead ends;

The frame is used to support the mixing bucket, including a first frame 1 and a second frame 3, the top of the second frame 3 is connected to the lower part of the mixing bucket 4, and the bottom is connected to the bottom of the mixing bucket 4 through a buffer pad 2. The first frame 1 is connected; by nesting a buffer pad between the first frame and the second frame, a certain buffer can be formed on the mixing barrel and the frame when the mixer is in use, which is beneficial to improve the service life of the mixer;

A circular cover 7 is placed on the top of the mixing tank, and its edge is connected to the top of the mixing tank so that the mixing tank is airtight, and a feed inlet is provided on it; the cover is set to seal the mixing tank to reduce the stirring noise;

Stirring shaft, which includes:

The main shaft 9, which is vertically arranged in the mixing bucket, includes an integrally formed upper main shaft 24 and a lower main shaft 25, wherein,

The upper main shaft 24 is a solid cylinder; the lower main shaft 25 is a hollow cylinder, including a hollow part and a solid part, and the top end of the lower main shaft 25 passes through the circular cover 7 so that the stirring shaft is fixed on the Inside the mixing tank 4, the lower main shaft 25 is provided with a water inlet pipe 26 on one side outside the circular cover 7, one end of the water inlet pipe 26 communicates with the hollow part of the lower main shaft 25, and the other end is provided with a water inlet pipe 26. There is a control valve 27 and a flow meter, the hollow part of the lower main shaft 25 is connected with a pressure nozzle 28, and the pressure nozzle 28 passes through the solid part of the lower main shaft 25 and communicates with the inside of the mixing tank 4, and the lower main shaft The solid part of 25 is provided with thread 15; the water inlet pipe and pressure nozzle are set on the main shaft, which can make the water disperse more evenly and shorten the concrete mixing time. Coagulation, improve cleaning efficiency;

The secondary shaft is fixed vertically on the main shaft, the secondary shaft is a solid cylinder, and the secondary shaft is provided with threads 15, which include screw threads arranged in sequence from top to bottom and arranged in pairs on both sides of the main shaft. The first layshaft 10, the second layshaft 11, the third layshaft 12, the fourth layshaft 13 and the fifth layshaft 14, wherein the first layshaft 10, the second layshaft 11 and the The length of the third sub-shaft 12 increases successively, and the lengths of the third sub-shaft 12, the fourth sub-shaft 13 and the fifth sub-shaft 14 decrease successively; different stirring sub-shaft lengths and stirring The nested thread on the shaft can effectively avoid the generation of mixing inefficient areas, improve the quality of concrete and mixing efficiency, and at the same time prevent the breaking of mixing blades, damage to the mixing shaft and mixing barrel, and improve the service life of the mixer;

The first motor 16, which is fixed above the circular cover 7, drives the main shaft 9 to rotate through the pulley connecting device 17;

A vibrating device comprising:

A vibrating rod 19, which passes through the circular cover 7 and is placed inside the upper part of the mixing bucket 4, and is at a certain distance from the inner wall of the mixing bucket 4 so that the vibrating rod 19 does not interfere with the stirring shaft The fixing device includes the first support plate 20 vertically arranged on the inner wall of the mixing bucket, and the second support plate 21 that is fixedly connected to the vibrating rod 19 and the first support plate 20; the second motor 22 is fixed On the side above the circular cover 7, it drives the vibrating rod 19 to vibrate through a coupling; by adding a vibrating device inside the mixing bucket, it can effectively prevent the cement clumping phenomenon during the mixing process of the concrete and prevent the concrete from adhering. On the inner wall of the mixing tank and the mixing shaft, the mixing efficiency is improved, and the addition of a vibrating device is also beneficial to reduce the air content in the concrete and improve the concrete strength.

In another technical solution, the pressure nozzle 28 is 0-75 degrees to the horizontal direction; the pressure nozzles with different angles can make the mixing bucket flush with water in all directions without leaving any dead angle, so that the mixing bucket can be cleaned more thoroughly. Improve cleaning efficiency.

In another technical solution, the pressure nozzle 28 passes through the thread 15 protrusion of the solid part of the lower main shaft 25 to communicate with the inside of the mixing bucket 4; compared with passing through the thread recess, the pressure nozzle protrudes from the thread The lower spindle can withstand a larger load during the mixing process.

In another technical solution, the protrusion of the thread 15 is 5-10cm wide, the thread depth is 6-15cm, and the thread pitch is 15-30cm; according to the different mixing material ratio, the stirring shaft with different thread parameters can be used to improve the stirring speed. efficiency and concrete quality.

In another technical solution, the connection between the first support plate 20 and the mixing bucket 4, the connection between the second support plate 21 and the vibrating rod 19 and the first support plate 20 are all provided with buffer Gaskets: setting buffer gaskets can reduce the damage to the support plate and the wall of the mixing tank during the vibration of the vibrating rod.

In another technical solution, the discharge port is provided with a discharge port door 5, the edge of the discharge port door 5 is provided with an elastic sealing strip, one end of the discharge port door 5 is hinged at the bottom of the mixing barrel, and the other end is The manual valve 6 is fixed on the mixing barrel; the discharge port door is set to facilitate unloading, and the discharge port door is provided with elastic sealing strips to prevent liquid leakage during stirring or cleaning, and to ensure accurate distribution of concrete components.

In another technical solution, a feed port door 8 is provided above the feed port, and the feed port door 8 is hinged on the circular cover body 7; the feed port door is provided to facilitate feeding while stirring Closing the feed inlet door during the process can keep the mixing tank in a sealed state, which can effectively prevent the stirring noise from spreading outside and reduce the stirring noise.

In another technical solution, a speed reducer 18 is provided between the pulley connection device 17 and the main shaft 9; it can reduce the speed, increase the torque, and provide sufficient power for the stirring shaft.

In another technical solution, a controller 23 is provided inside the upper end of the first frame, and a control panel is provided on its surface, and a first switch, a second switch and a third switch are provided on the control panel, and the first switch and the third switch are provided on the control panel. The switch controls the operation of the first motor through the controller 23, the second switch controls the operation of the second motor through the controller 23, and the third switch controls the control valve through the controller 23 27 is turned on or off, and the control panel is provided with a display screen showing the flow rate of the flow meter; the controller is set to facilitate the operation of workers and accurately control the amount of water added.

Although embodiments of the present invention have been disclosed above, it is not limited to the applications set forth in the specification and examples. It can be fully applied to various fields suitable for the present invention. Additional modifications can readily be made by those skilled in the art. Therefore, the invention should not be limited to the specific details and examples shown and described herein, without departing from the general concept defined by the claims and their equivalents.

Claims (9)

1. A kind of 1. small vibrating concrete mixer, it is characterised in that including：

   Agitator, it includes integrally formed upper part and lower part, and for the upper part in cylinder, the lower part is in hemisphere Shape, its bottom set out material mouth；

   Frame, for supporting the agitator, including the first frame and the second frame, the second frame top and the stirring Bucket lower part connection, lower section is connected by cushion pad with first frame；

   Circular lid, it is placed at the top of agitator, and its edge at the top of the agitator with being connected, so that the agitator is closed, Charging aperture is set thereon；

   Agitating shaft, it includes：

   Main shaft, it is vertically arranged in the agitator, including integrally formed upper main shaft and lower main axis, wherein,

   The upper main shaft is solid cylinder；

   The lower main axis are hollow circular cylinder, including hollow space and solid section, the lower main axis top pass through the circle So that the agitating shaft is fixed on inside the agitator, the side that the lower main axis are located at the circular lid portion outside is set lid There is water inlet pipe, described water inlet pipe one end connects with the hollow space of the lower main axis, and the other end is provided with control valve and flowmeter, institute The hollow space for stating lower main axis is connected with drive nozzle, and the solid section of the drive nozzle through the lower main axis stirs with described Mix and connected inside bucket, the solid section of the lower main axis is provided with screw thread；

   Countershaft, it is vertically fixed on the main shaft, and the countershaft is solid cylinder, and the countershaft is provided with screw thread, and it is wrapped Include the first countershaft for being arranged in order and being arranged in pairs in the main shaft both sides from top to bottom, the second countershaft, the 3rd countershaft, fourth officer Axle and the 5th countershaft, wherein, the length of first countershaft, second countershaft and the 3rd countershaft increases successively, described The length of 3rd countershaft, the 4th countershaft and the 5th countershaft is sequentially reduced；

   First motor, it is fixed on above the circular lid, and it drives the main shaft to rotate by belt pulley attachment means；

   Vibrating device, it includes：

   Vibrating head, it is placed in inside the agitator upper part through the circular lid, and apart from the agitator inwall one Set a distance is not so that the vibrating head interferes with the agitating shaft；

   Fixing device, including the first supporting plate of the agitator inwall is vertically set on, and it is fixedly connected with the vibrating head With the second supporting plate of first supporting plate；

   Second motor, it is fixed at the upper side of the circular lid, and it drives the vibrating head to vibrate by shaft coupling.
2. 2. small vibrating concrete mixer as claimed in claim 1, it is characterised in that the drive nozzle and horizontal direction In 0-75 degree.
3. 3. small vibrating concrete mixer as claimed in claim 2, it is characterised in that the drive nozzle passes through lower main axis With being connected inside the agitator at the thread protrusion of solid section.
4. 4. small vibrating concrete mixer as claimed in claim 3, it is characterised in that the raised wide 5- of the screw thread 10cm, depth of thread 6-15cm, flight pitch 15-30cm.
5. 5. small vibrating concrete mixer as claimed in claim 4, it is characterised in that first supporting plate is stirred with described A barrel junction is mixed, second supporting plate is equipped with buffering spacer with the vibrating head and the first supporting plate junction.
6. 6. small vibrating concrete mixer as claimed in claim 5, it is characterised in that the discharging opening sets out material mouth door, The discharging opening door edge sets elastic sealing strip, and described discharging opening door one end is hinged on the stirring bottom of the barrel, and the other end passes through Hand-operated valve is fixed on the agitator.
7. 7. small vibrating concrete mixer as claimed in claim 6, it is characterised in that charging is provided with above the charging aperture Mouth door, the charging aperture door hinge are connected on the circular lid.
8. 8. small vibrating concrete mixer as claimed in claim 7, it is characterised in that the belt pulley attachment means and institute State and be provided with decelerator between main shaft.
9. 9. small vibrating concrete mixer as claimed in claim 8, it is characterised in that set inside first frame upper end There is controller, its surface is provided with control panel, and the control panel is provided with first switch second switch and the 3rd switch, described First switch controls first motor operation by controller, and the second switch controls second motor by controller Operation, the 3rd switch control the control valve to be turned on and off by controller, and the control panel is provided with display institute State the display screen of flowmeter flow.