FI88593B - FOERFARANDE FOER TILLVERKNING AV BETONGMASSA OCH TRANSPORTERING DEN TILL EN GJUTPLATS - Google Patents

Abstract

A method for making concrete and transporting to casting station in which method with mixing means equipped bowl (4) is used for mixing the concrete and as transporting device is used an excavator (1). The loading of the sand to the mixing bowl (4) is carried out by the excavator and by means of the same vehicle the concrete is transported to the casting station in its mixing bowl.

Description

! 88593

METHOD FOR THE PRODUCTION AND TRANSFER OF CONCRETE MASS

casting station

The invention relates to a method according to claim 1 for producing a concrete mass in a mixing vessel and transferring it using the same vessel to a casting station, which is generally a casting mold or a planar structure to be cast.

Methods are already known in which fixed so-called concrete stations produce the desired mixture, which is transported to the casting site by cars. These stations usually have a mixing vessel into which the mixture is formed and transferred from the vessel to be transported by the car to a tank in the car. In addition, methods for making a concrete mixture at a casting site are known, in which a concrete mixer is used to form a mixture of components transported to the mixer tank at the casting site. From the mixer tank, the mixture is emptied into various means of transport, such as trolleys or a crane-laden casting vessel.

When using fixed concrete stations, unnecessary transports have to be carried out, because the cement, water and sand are transported from the concrete station to the casting site in any case. Cement has to be transported unnecessarily to the concrete plant and from there to the casting site when it could only be transported to the casting site. In many cases, even the sand has to be transported to the concrete plant from somewhere else and then from the concrete plant to the casting site again. A disadvantage of the previously known methods of mixing at the casting site is the high need for labor when using a traditional hand-filled mixing mill and transport by push carts. When using machines as an aid in on-site manufacturing, a tractor front loader has been used to fill the mixer, and a construction crane has been used to transport the finished mixture, in which case the casting operation has also required a lot of labor and machinery.

SE Publication No. 443117 discloses a loading bucket attached to a loader which is so long that a rotatable concrete mixer drum with an orifice of 2 88593 directed towards the mouth of the bucket can be fitted to its rear part. At the front of the bucket, the aggregate is loaded into the mixer by tilting the bucket so that the aggregate flows into the mixer. The concrete is also transported in a mixer to the casting station and the mixer is emptied by tilting. The rotational force of the mixer is taken from the loader, e.g. from its hydraulic system.

Em. the structure is difficult to control the amount of aggregate because the bucket does not have an exact volume. Second, such a combination of bucket and mixer el has no other use.

U.S. Pat. No. 3,211,436 discloses a Concrete Mixer connected to a bucket of an earthmoving machine, which can also be used to transport concrete and empty the contents of the mixer in a pouring station. It is also known from SU patent no. 623743 A combination of a bucket and a concrete mixer in place of an excavator bucket, which itself performs the loading of aggregate, performs mixing and emptying. Even in these solutions, the dosing of the aggregate does not become accurate but is mainly a random bucket injection. In these solutions, the bucket and the mixer have to be built from the beginning as suitable special equipment and thus the previously known loading grabs and the previously known concrete mixer containers cannot be applied for loading, mixing, transport and emptying.

The method according to the invention avoids these disadvantages and the invention is characterized by what is stated in claim 1.

The main advantage of the invention can be considered to be the saving in transport costs when only the required amount of materials is transported and also directly to the final location. The filling of the mixer is carried out mechanically for sand and water, the amounts of which are also adjustable, and the mixture is taken directly to the casting site with the mixer. When using an excavator equipped with a boom, the concrete mass can be brought to a wide area and also to different altitudes within the limits of the machine's dimensions and transport possibilities.

3,88593

In the following, the invention will be explained in more detail with reference to the drawings, in which

Figure 1 shows the working machine and the mixing vessel from the side.

Figure 2 shows a mixing vessel

Figure 3 shows the front of the implement and the mixing vessel.

Figure 1 shows an embodiment in which the working machine is an IT-mobile excavator 1. It is provided with a two-part grab 5 and a water tank 3 is embedded in its boom housing. A mixing vessel 4 is connected to the grab 5, which the excavator can pick up and move to the desired position. The mixing vessel 4 is partially filled with sand, which is loaded by means of an excavator Kahma. The excavator can leave the container 4 in the ground and take the sand with a grab. Water is dispensed from the water tank 3 in the boom 2 into the mixing vessel 4. A time relay that regulates the flow time is used in connection with the valve to control the amount of water. Cement is also added to the same mixing vessel.

The invention is not limited to the embodiments described above, but many modifications are possible within the scope of the inventive idea defined by the appended claims.

Claims (3)

4,885-93 PATENT CLAIMS; 1. For use in the manufacture of concrete and in the transport of goods and in the field of transport, in which case the use of concrete and the transport of the concrete (4) is carried out by means of the transport (4), en gruvmaskin (1) känne-t ecknat av, att betongmas transporteras account gjut-platsen genom att ta blandningsbehällaren (4) head to gruvmaski-nen (1) kopplad samma Grabb (5), som utför utdelningen av stenämne i sagda behällare. A method for producing and transferring concrete mass to a casting station, in which a separate vessel (4) with mixing means is used for mixing the concrete mass and an excavator (1) is used as the device for transferring the mass (4), characterized in that the concrete mass is transferred to the casting station by taking a mixing vessel (4) connected to the excavator (1). on the same grab (5) which dispenses the aggregate into said vessel. 2. A method according to claim 1 for the use of a spatula (3) is provided with a group of bombs and a dosage form which comprises a relay, which means just a dosage. Method according to Claim 1, characterized in that the water tank (3) is embedded in the boom housing of the excavator and the water is dispensed by a relay which regulates the dispensing time. Method according to Claim 1 or 2, characterized in that a quick-release lock is used to connect the mixing bowl (4) to the grab (5), which is controlled from the excavator cab. 3. A patent according to claim 1 or 2, which comprises a replica of the blanks and the grab (5) according to the invention, which can be used as a block.