JPH054521Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a concrete mortar spraying machine that gradually mixes and pumps cement, sand, water, or gravel into these while stirring.

(Prior Art) Conventionally, as this type of concrete mortar spraying machine, there is a continuous kneading and pumping device as described in, for example, Japanese Utility Model Application Publication No. 60-42608. This system consists of a mixer section that continuously injects water into the material and kneads it, and a pump section that continuously pumps the material kneaded in the mixer section, on a movable trolley equipped with wheels for movement. It is installed.

There is also a method and apparatus for spraying mortar etc. as described in Japanese Utility Model Application Publication No. 56-124465.
This system adopts a configuration in which a mixer with stirring blades inside, a prime mover that rotates the mixer's stirring blades, a water pump, etc. are mounted on a movable trolley equipped with wheels for movement. has been done.

(Problem that the invention aims to solve) However, in order to be able to mount the mixer section, pump section, etc. (mixer, prime mover, water pump, etc.), the cart itself must be constructed relatively large. Moreover, there was a problem in that the entire continuous kneading and pumping device became large.

In addition, the arrangement of a pressure path for continuously pumping the kneaded materials from the mixer section was restricted by the trolley frame of the truck, which caused difficulties such as the inability to set the pressure path at a desired position.

(Means for Solving the Problems) Therefore, the present invention solves the above-mentioned difficulties, makes it possible to stir and knead aggregates, etc. in a good condition, and smoothly transfers the aggregates, etc. to the discharge port 4. so that it can be discharged from the bottom mixer A,
Moreover, it was devised to simplify the overall structure of the concrete mortar spraying machine and to improve the stability of the concrete mortar spraying machine as a whole. Two mixers A are disposed above and below each other, each having a stirring blade mounted rotatably on the shaft, and the stirring blade is mounted horizontally on the drum 1 so as to be rotatable. At least the drum 1 of the lower mixer A is provided with a rotating shaft and a pair of blade bodies fixed to a predetermined position of the rotating shaft via a mounting member.
Among the pair of blade bodies, one blade body gradually transfers the aggregate, etc. located at one end of the drum 1 toward the center of the drum 1, and the other blade body gradually transfers the aggregate, etc. located at one end of the drum 1 toward the center of the drum 1. The aggregates, etc. in the drum 1 are gradually transferred toward the center of the drum 1, and the aggregates, etc. in the drum 1 are moved in a twilling pattern approximately in a figure 8 shape while rotating, and at the same time, the aggregates etc. in the drum 1 are moved in an X shape at the center of the drum 1. The concrete mortar spraying machine is configured to mix and knead in an intersecting manner, and has a discharge port 4 disposed approximately at the lower center of a lower mixer A. Furthermore, drum 1 of lower mixer A
Bearing fittings 11 that protrude laterally are fixed to the left and right lower surfaces of one end 2, respectively, and bearings 12 are fixed to each of the bearing fittings 11.
A wheel shaft 14 is rotatably inserted through the wheel shaft 2, and moving wheels 13 are rotatably attached to both ends of the wheel shaft 14. Further, a mounting body 16 is fixed to the left and right lower surfaces of the other end 3 of the drum 1 of the lower mixer A, and a driving device B is placed on the mounting body 16, and a moving wheel 23 is rotatably attached to the mounting body 16. The right and left portions of one end of the base 22 are connected to each other. In addition, a means for arranging a discharge pipe 5 connected to the discharge port 4 of the lower mixer A in a space below the center of the lower mixer A was adopted.

(Function) Therefore, the aggregates, etc. in the drum 1 are gradually transferred from one end of the drum 1 to the center by one of the stirring blades, and the other blade By the main body, the other end of the drum 1 is recognized and the drum 1 is gradually moved toward the center, so that the drum 1 rotates in a substantially figure-eight shape. Furthermore, the materials are kneaded and mixed in an X-shape at the center of the drum 1. The mixed and kneaded aggregates and the like are then discharged from the discharge port 4 provided at the substantially central lower part of the lower mixer A.

Further, at one end 2 of the drum 1 of the lower mixer A, a bearing mounting body 11 that largely extends to the left and right sides is provided.
A wheel 13 for moving left and right is rotatably attached via a bearing 12 and a wheel shaft 14, and the wheel 13 for moving left and right is configured to protrude largely to the left and right sides of the drum 1 of the lower mixer A. This maintains the stability of the entire concrete mortar spraying machine in the lateral direction.

Further, at the other end 3 of the drum 1 of the lower mixer A, there is one end portion of a base 22 on which a drive device B is placed and a moving wheel 23 is rotatably attached via a mounting body 16. are concatenated.

The concrete mortar spraying machine can be moved freely by the moving wheels 13 attached to one end of the drum 1 and the moving wheels 23 of the base 22, and a desired space is secured below the center of the lower mixer A. Using this space, a discharge pipe 5 connected to the discharge port 4 is arranged.

(Example) Hereinafter, the present invention will be explained with reference to illustrated examples.

The concrete mortar spraying machine shown in the drawing forms a mixer A in which a rotating shaft of a stirring blade body is rotatably installed on a substantially hollow cylindrical drum 1, which is like a cylinder closed at left and right ends 2 and 3. Two mixers A are arranged one above the other, and the upper mixer A has a discharge port provided at the bottom of the drum 1 approximately in the center (closer to one end 2), and the lower mixer A has an outlet provided approximately in the center of the drum 1 (closer to one end 2). From the input port provided at the upper part of the drum 1 of the upper mixer A (closer to one end 2), the stirring blade is rotated at an appropriate deceleration speed by the drive device B. Aggregates etc. to be introduced are stirred and kneaded in the upper mixer A, and are then introduced into the lower mixer A.
Further stirring and kneading are carried out in drum 1 of lower mixer A.
It is configured such that it can be discharged through a discharge pipe 5 from a discharge port 4 disposed approximately at the lower center of the body.

In addition, the specific arrangement positions of the input port and the discharge port of the upper mixer A and the input port and the discharge port 4 of the lower mixer A are not limited to the illustrated example and can be freely set as appropriate.

One end 2 of the drum 1 of the lower mixer A
is provided with a wheel attachment part 10, and a wheel 13 for left and right movement is rotatably attached to this wheel attachment part 10. That is, a bearing attachment body 11 is fixed to the left and right lower surfaces of one end portion 2 of the drum 1 of the lower mixer A, and a bearing 12 is fixed to each of the bearing attachment bodies 11, and the wheel shaft 14 is rotatably attached to the bearing 12. The wheel shaft 14 is inserted through the wheel shaft 14, and left and right moving wheels 13 are rotatably attached to both ends of the wheel shaft 14. Note that the bearing mounting body 11 is attached to the drum 1.
The wheels 13 for left and right movement protrude to the sides.
It is designed to improve the stability of the entire concrete mortar spraying machine.

Further, a base mounting portion 15 is provided at the other end 3 of the drum 1 of the lower mixer A, and this base mounting portion 1
5, the driving device B is mounted, and the moving wheels 2
3 is rotatably attached to the base 22. That is, a mounting body 16 is fixed to the left and right lower surfaces of the other end 3 of the drum 1 of the lower mixer A, and the right and left portions of one end of the base 22 are connected to the mounting body 16, respectively.

Furthermore, the drive device B placed on the base 22 includes a prime mover 20 and a drive rotational force of the prime mover 20 that is connected to the upper and lower mixers A, through sprockets, chains, etc.
It is equipped with a speed reducer 21 that appropriately reduces the speed and transmits the speed to each of the rotating shafts of the stirring blades A. Note that this drive device B may be provided with an appropriate compressor or the like for increasing the air pressure within the drum 1 via a pressurizing port.

30 in the figure is a hopper attached to the input port of the upper mixer A.

By the way, the input port of each drum 1 is provided with a shutter that can freely open and close the input port. In addition, an exhaust port and a pressurizing port are opened at the input port of the drum 1, and the pressurizing port is connected to a compressor as appropriate so as to increase the air pressure inside the drum 1, and the exhaust port is for restoring the increased air pressure inside the drum 1 (to the outside air pressure), and is communicated with appropriate valves.

The stirring blade body has a pair of blade bodies each disposed through a mounting member at a predetermined position of a rotary shaft which is rotatably installed horizontally at the center of the drum 1, and one end inside the drum 1 is disposed at a predetermined position. Aggregates, etc. in the alligator are gradually transferred toward the center of the drum 1 by one blade body, and aggregates, etc. in the alligator at the other end of the drum 1 are transferred to the center of the drum 1 by the other blade body. The aggregates, etc. in the drum 1 are gradually transferred toward the crocodile, and the aggregates, etc. in the drum 1 are rotated in a roughly figure-8 shape by the two blade root bodies, and the movement intersects in an X shape at the center of the drum 1. It is configured to be well mixed and kneaded.

By the way, the specific configuration of mixer A, drum 1
Specific shape and dimensions, specific configuration, shape, and dimensions of the stirring blade, position and dimensions of the discharge port 4, shape and dimensions of the discharge pipe 5, specific configuration of the wheel mounting portion 10,
The shape and dimensions of the bearing mounting body 11, the arrangement position on the drum 1, the means for fixing it to the drum 1, the shape of the bearing 12,
Fixing means to the bearing mounting body 11, specific configuration of the base mounting portion 15, shape and dimensions of the mounting body 16, specific configuration of the drive device B, specific configuration and shape of the base 22,
Dimensions and the like are not limited to the illustrated examples and can be freely set as appropriate.

(Effect of the invention) Therefore, the present invention has two mixers A arranged above and below each other, each of which has stirring blades rotatably mounted on shafts for stirring the aggregates etc. to be added in the drum 1. The stirring blade body includes a rotating shaft that is rotatably mounted horizontally on the drum 1, and a pair of blade bodies that are fixed to predetermined positions of the rotating shaft via a mounting member,
At least, the pair of blade bodies in the drum 1 of the lower mixer A is such that one blade body gradually transfers the aggregate, etc. located at one end of the drum 1 toward the center of the drum 1, and the other blade body The main body gradually transfers the aggregates, etc. located on the other end of the drum 1 toward the center of the drum 1, and the aggregates, etc. inside the drum 1 move in a twill pattern approximately in a figure 8 shape while rotating. At the same time, the drum 1 is configured to be crossed in an X-shape at the center of the drum 1 for mixing and kneading, and a discharge port 4 is provided at approximately the center lower part of the lower mixer A.
A concrete mortar spraying machine is provided with a bearing mounting body 11 that extends laterally on the left and right lower surfaces of one end portion 2 of the drum 1 of the lower mixer A.
At the same time, a bearing 12 is fixed to each of the bearing fittings 11, and a wheel axle 14 is attached to this bearing 12.
is rotatably inserted through the wheel shaft 1.
4. Moving wheels 13 are rotatably attached to both ends of the drum 1, and mounting bodies 16 are respectively fixed to the left and right lower surfaces of the other end 3 of the drum 1 of the lower mixer A.
The left and right ends of one end of the base 22 on which the drive device B is mounted and the moving wheels 23 are rotatably attached are connected to each other, and a discharge port of the lower mixer A is connected to the space below the center of the lower mixer A. 4, the lower drum 1 itself can be used as an extension of the base 22, and the base 22 can be made smaller. The structure of the concrete mortar spraying machine itself can be simplified, and the entire concrete mortar spraying machine can be made robust, small, and compact.

In particular, the pair of blade bodies in the drum 1 of the lower mixer A is such that one blade body gradually transfers the aggregate, etc. located at one end of the drum 1 toward the center of the drum 1, and the other blade body However, the aggregates, etc. located on the other end of the drum 1 are gradually transferred toward the center of the drum 1, and as the aggregates, etc. inside the drum 1 move in a twill pattern approximately in a figure 8 shape while rotating, The drum 1 is constructed so that it can be mixed and kneaded by crossing in an X-shape at the center of the drum 1, and the discharge port 4 is disposed approximately at the lower center of the lower mixer A, so that aggregates, etc. can be stirred and kneaded in an extremely good condition. become. Moreover, the aggregates and the like that have been stirred and kneaded intersect in an X-shape and can be smoothly discharged out of the lower mixer A from the discharge port 4 provided at the center of the drum 1, where the quantity thereof is large.

In addition, since the concrete mortar spraying machine is supported by the moving wheels 13 attached to one end of the drum 1 and the moving wheels 23 of the base 22, it is connected to the discharge port 4 at the lower center of the lower mixer A. A space for arranging the discharge pipe 5 can be secured, and the discharge pipe 5 can be easily connected to the discharge port 4. As a result, the pumping path for pumping the kneaded aggregate and the like out of the lower mixer A can be freely set.

Further, on the left and right lower surfaces of one end portion 2 of the drum 1 of the lower mixer A, there is a bearing mounting body 1 that largely extends laterally.
1 respectively, and this bearing mounting body 11
A bearing 12 is fixed to each of them, and a wheel axle 14 is rotatably inserted through the bearing 12, and a moving wheel 13 is rotatably attached to both ends of the wheel axle 14. , the lower mixer A can be arranged so as to protrude greatly to the left and right sides of the drum 1, and the stability of the entire concrete mortar spraying machine in the left and right direction is improved.

[Brief explanation of the drawing]

The drawings illustrate the present invention, with FIG. 1 being a partially cutaway front view and FIG. 2 being a side view. A... mixer, 1... drum, 2... one end, 3... other end, 4... discharge port, 5... discharge pipe, 10... wheel mounting part, 11... bearing mounting body,
12...Bearing, 13...Moving wheel, 14...Wheel axle, 15...Base mounting portion, 16...Mounting body, B
... Drive device, 20 ... Prime mover, 21 ... Speed reducer, 22 ... Base, 23 ... Moving wheels, 30 ...
...hoppah.

Claims (1)

[Scope of utility model registration request] Two mixers are arranged above and below each other, and each mixer has a stirring vane rotatably mounted on a shaft for agitating the aggregates etc. to be fed into the drum. At least one of the pair of blade bodies in the drum of the lower mixer is provided with a rotating shaft provided in the drum, and a pair of blade bodies fixed to a predetermined position of the rotating shaft via a mounting member. The blade gradually transfers the aggregates, etc. located at one end of the drum toward the center of the drum, and the other blade body gradually transfers the aggregates, etc. located at the other end of the drum toward the center of the drum. The structure is such that the aggregates, etc. in the drum are moved while rotating in an approximately figure-eight pattern, and are mixed and kneaded by crossing in an X-shape at the center of the drum. A concrete mortar spraying machine is provided with a discharge port in the lower mixer, and bearing fittings that protrude laterally are fixed to the left and right lower surfaces of one end of the drum of the lower mixer, respectively. A bearing is fixed to the shaft, and a wheel shaft is rotatably inserted into the bearing.Moving wheels are rotatably attached to both ends of the wheel shaft, and mounting bodies are attached to the lower left and right surfaces of the other end of the drum of the lower mixer. to this mounting body,
The left and right ends of one end of the base on which the drive device is mounted and the moving wheels are rotatably attached are connected to each other, and a discharge pipe connected to the discharge port of the lower mixer is connected to the space below the center of the lower mixer. A concrete mortar spraying machine characterized by being configured so that it can be placed anywhere.