JP2009262039A - Trommel with filtering device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a trommel with a filtering device, and to solve the problem that when targets to be screened contain many clayey objects, pebbles or the like cannot be sufficiently sorted out with a mesh. <P>SOLUTION: The device is a sieving device which is attached to an arm of an operating machine, and scoops ans sieves out targets. A trommel 1 with the filtering device is characterized in that a plurality of support arms 7 extending to a radial direction from a rotatable base for arm 6 placed in the center of a cylindrical mesh basket 4 are provided inside a mesh basket constituting the sieving device, and also a scraper 8 for filtering and taking out the targets depending on the mesh roughness by slidably contacting with the mesh basket is provided at the chip of the support arm, and a drive 9 for rotating the base part for the arm is provided on the back side of the mesh basket 4. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention is, for example, a trommel that is attached to the arm of a movable work machine and is picked up and selected on the spot when sorting, classifying and collecting industrial waste, civil engineering, demolition work soil, crushed stone, gravel, etc. It is about.

  Conventionally, a cylindrical rotary sieve (trommel) for screening crushed stones, gravel, etc., can process raw materials of different sizes as described in Patent Document 1. A plurality of segments are formed by dividing in the raw material conveyance direction, and a partition member is provided for partitioning adjacent sieve mesh segments so that the separation ratio of the raw materials can be changed without changing the sieve mesh. 2. Description of the Related Art A sieving net and a sieving machine that can adjust the particle size or particle size of a raw material to be separated according to changes are known.

Then, as shown in FIG. 6, a sieve screen 21 for screening industrial waste or crushed stone is attached to the tip of the arm 22 of the movable work machine, and the earth and sand and crushed stone are scooped up at the work site. There is known a trommel 23 that is directly sieved.
Japanese Patent Laid-Open No. 2004-41986

  However, the conventional trommel that sifts through earth and sand and crushed stones is sufficient for concrete lumps, gravel, or wood. On the other hand, stones, pieces of wood, etc. from clay-rich or moisture-rich soils. It is difficult to screen out the foreign matter because the foreign matter does not easily fall naturally due to adhering to the clayey portion. The trommel with a strainer according to the present invention has been proposed in order to solve such problems.

  The gist for solving the above-mentioned problems of the trommel with a strainer according to the present invention is to achieve the object, a sieving device that is attached to an arm of a work machine and squeezes an object, and the sieving device is A plurality of support arms extending in the radial direction from a rotatable arm base at the center of the mesh cage are provided inside the cylindrical mesh mesh to be configured, and the mesh mesh is attached to the tip of the support arm. A scraper that slides and filters the object according to the roughness of the mesh is provided, and a drive unit that rotates the base for the arm is provided on the back side of the mesh cage.

  The gist of the trommel with a strainer according to the present invention is a sieving device that is attached to an arm of a work machine and squeezes an object and sifts it out. A scraper is provided in parallel with the center axis of rotation of the mesh cage, and a scraper for sliding out an object by sliding the edge of one end along the inner wall surface of the mesh mesh. A support member that is fixed and supported at the inside is disposed with both the inner wall surface and a gap from both openings of the mesh cage.

Position adjustment means provided on the scraper mounting portion of the support member and the mounting surface of the scraper so that the scraper can be moved and adjusted in the radial direction of the screen;
Round bars are provided at both ends of the scraper that are in sliding contact with the inner wall surface of the scraper. Being able to be in sliding contact;
Is included.

  According to the trommel with a strainer of the present invention, as an object to be sorted, for example, industrial waste with a lot of clay can be scooped up with bucket claws on the site, and directly put into a net cage and vibrated with an arm. By sorting the industrial waste and the like, and further rotating the scraper by the drive unit, a small stone or piece of wood can be pressed into the net of the net and forced out from the net.

  Further, when the mesh cage and the scraper are relatively rotated and moved, the same effect can be obtained by rotating the mesh mesh and filtering out pebbles and the like from the mesh by a scraper supported by fixing the position. .

  Further, by allowing the scraper to move and adjust in the radial direction of the mesh cage, the scraper can be used if it is moved by the amount worn down and slidably contacted with the inner wall surface of the mesh mesh, thereby extending the life of the scraper. In addition, by providing round bars on both ends of the scraper that are in sliding contact with the inner wall surface of the scraper so that the scraper can be inverted and used, the life of the scraper is doubled and the running cost is reduced. .

  As shown in FIGS. 1 and 2, the trommel 1 with a filtering device according to the present invention is attached to an arm 22 of a work machine, and an object 2 such as industrial waste, earth and sand, quarrying, gravel, etc. is beaten with a bucket 3. A sieving device 5 for sieving it with a mesh screen 4. A plurality of support arms 7 extending in the radial direction from a rotatable arm base 6 at the center of the mesh cage 4 are provided inside the cylindrical mesh mesh 4 constituting the sieving device 5, and the support thereof A scraper 8 is provided at the tip of the arm 7 so as to slide in contact with the mesh cage 4 and filter the object 2 in accordance with the roughness of the mesh.

  A drive unit (for example, an electric motor or a hydraulic motor) 9 for rotating the arm base 6 is provided on the back side of the net cage 4. Note that the upper half of the mesh cage 4 is formed of an iron plate, and the lower half of the mesh cage 4 is formed of a metal mesh with a desired mesh roughness.

  As shown in FIG. 3, the scraper 8 is a plate-like body and is urged by an elastic member 10 such as a coil spring so as to always protrude in the radial direction. This is because when the end portion of the scraper 8 is slidably contacted with the wire mesh of the net 4 and is gradually worn away, the end portion of the scraper 8 is automatically pushed out to prevent functional deterioration.

  The scraper 8 is installed between the grooves 7 a at the tip of the support arm 7 provided in a plurality in the axial direction of the screen cage 4. The elastic member 10 that urges the scraper 8 is provided with a spring seat on a horizontal plate 7b that is horizontally mounted between support arms 7, and this is used as a reaction force portion.

  According to such a trommel 1 with a strainer in a working machine, even if the object 2 is a sticky industrial waste or the like containing a lot of clay, the arm 22 is moved to move the object with the claws 11 of the bucket 3. If a thing is scraped off, these are taken in into the net 4 and the scraper 8 is rotated by the drive unit 9 via the support arm 7, pebbles and the like are forcibly filtered and discharged from the net of the net 4. Can be sorted efficiently.

  As another embodiment of the present invention, as shown in FIG. 4, it is a modified example of a mesh cage, and the inner wall surface of the mesh mesh 12 is placed inside a cylindrical mesh mesh 12 constituting the sieving device. A scraper 13 slidably contacting the edge 13 a at one end along the line 12 a to filter the object 2 is provided in parallel with the rotation center axis of the mesh cage 12, and the scraper 13 is supported inside the mesh cage 12. A support member 14 that is fixed and supported via a frame 14a is disposed in a substantially U shape with a gap from the inner wall surface 12a inside from both openings of the mesh cage 12.

  Then, as shown in FIGS. 5A and 5B, the scraper 13 can be moved and adjusted in the radial direction of the reed 12 so that the scraper mounting portion 14b of the support member 14 and the mounting surface 13d of the scraper 13 are as shown in FIGS. The position adjusting means 13c is provided. The position adjusting means 13c is, for example, a long hole, and a bolt and a nut to be inserted through the long hole are prepared in the scraper mounting portion 14b.

  In addition, conventionally known movement adjusting means can be employed. With the position adjusting means 13c, when the one end side edge portion 13a of the scraper 13 is worn away by the sliding contact action, the scraper 13 can be restored by pushing it outward in the radial direction.

Further, round bars are provided at both end edges 13a and 13b that are in sliding contact with the inner wall surface of the scraper 13 and are attached to the scraper mounting portion 14b of the support member 14 by reversing the scraper 13. The portions 13a and 13b can be brought into sliding contact with the inner wall surface 12a of the net cage 12, respectively.
As a result, when one edge 13a is worn down and cannot be used functionally, the edge 13b on the other end side can be replaced so as to be in sliding contact with the inner wall surface 12a. Therefore, the life of the scraper 13 is doubled.

1 is a side view of a trommel 1 with a filtering device according to the present invention. It is a front view of the trommel 1 with the strainer of the same invention. It is an expansion disassembled perspective view which shows the support structure of the scraper 8 of the trommel 1 with a filtration apparatus. It is a schematic perspective view which shows the relationship between the revolving screen 12 and the scraper 13 in the trommel with a filtering apparatus which concerns on 2nd Example. FIG. 4 is a partially enlarged side view (A) showing the relationship between the net cage 12 and the scraper 13 and an enlarged perspective view (B) of the scraper 13. It is a perspective view of the trommel 23 which concerns on a prior art example.

Explanation of symbols

1 Trommel with strainer
2 objects,
3 buckets,
4 Net candy,
5 sieving equipment,
6 Arm base,
7 support arm, 7a groove,
7b Horizontal plate,
8 Scraper,
9 Drive unit,
10 elastic member,
11 nails,
12 Net cage, 12a Inner wall surface,
13 scraper, 13a edge,
13b edge, 13c position adjusting means,
13d mounting surface,
14 support member, 14a support frame,
14b Scraper mounting part,
21
22 arms,
23 Conventional trommel.

Claims (4)

A sieving device that is attached to an arm of a work machine and squeezes and removes an object,
A plurality of support arms extending in the radial direction from a rotatable arm base in the center of the mesh cage are provided inside the cylindrical mesh mesh constituting the sieving device,
A scraper that slides in contact with the mesh cage at the tip of the support arm and filters out the object according to the roughness of the mesh is provided,
A drive unit for rotating the arm base is provided on the back side of the screen;
Trommel with strainer. A sieving device that is attached to an arm of a work machine and squeezes and removes an object,
A scraper that slidably contacts one end side edge along the inner wall surface of the mesh screen and filters the object inside the cylindrical and freely rotatable mesh screen constituting the sieving device is connected to the rotation center axis of the mesh screen. Provided in parallel,
A support member that fixes and supports the scraper on the inside of the mesh cage is disposed with both the inner wall surface and the gap from both openings of the mesh mesh;
Trommel with strainer. Position adjustment means is provided on the scraper mounting portion of the support member and the mounting surface of the scraper so that the scraper can be moved and adjusted in the radial direction of the mesh cage,
The trommel with a strainer according to claim 2. Round bars are provided at both ends of the scraper that are in sliding contact with the inner wall surface of the scraper. That can be contacted,
The trommel with a strainer according to claim 2 or 3.

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