JP5473808B2 - Dust remover rake and dust remover equipped with the rake - Google Patents

Description

  The present invention relates to a dust remover rake used in various facilities such as sewerage, river drainage, and waterworks, and a dust remover equipped with the rake.

Recently, particularly in sewerage facilities, there is an increasing need for removing fine dust for the purpose of improving confluence, and therefore the screen width of dust removers tends to be smaller than that of conventional ones.
Along with this, it has become necessary to reduce the nail pitch of the rake that bites between the screen eyes and scrapes the dust trapped on the screen.

By the way, conventionally, a rake of a dust remover has been manufactured by forming a rake claw by cutting a plate material or attaching a plate material to a rake body by welding (for example, see Patent Document 1). If the nail pitch is set to be small in accordance with demands, the conventional structure and manufacturing method cannot cope with the strength of the rake nail, welding work, and the like.
More specifically, in order to reduce the rake claw pitch of the dust remover, it has been difficult to meet the following requirements with the conventional structure and manufacturing method.
1. When the screen width is reduced, if the depth of the rake claw biting into the screen is small as in the conventional case, dust may remain and clog it. is there.
2. In the deep scratch shape, the nail is longer than the conventional one, and the rake nail obtained by cutting the thick plate cannot be used due to insufficient strength.
3. In order to ensure the strength, the deep scratched rake claw has a structure using a plate material. However, in order to attach the rake claw to the main body by welding as in the prior art, there is no space because the claw pitch is small, and welding work cannot be performed. Even if it was attached by welding, it took a lot of work time to correct the welding distortion.
4). In the unlikely event that the rake claw is damaged, it is not possible to replace only the damaged rake claw, and it is necessary to replace the corresponding block 1 set, which is expensive and expensive.

JP-A-7-62721

  An object of the present invention is to provide a dust remover rake capable of setting the rake claw pitch of the dust remover small while maintaining the strength of the rake claw, and a dust remover equipped with the rake.

In order to achieve the above object, the rake of the dust remover of the present invention comprises a rake claw assembly in which each rake claw is made of a plate material, a spacer is sandwiched between the plate materials constituting each rake claw, and assembled using a through bolt. A solid body is formed, and the rake claw assembly is attached to the rake body by a rake claw mounting bolt protruding from the spacer .

In this case, the upper surface of each rake claw constituting the rake claw assembly is brought into contact with the edge of the rake body side by arranging a flat plate of a rake upper plate, and each rake claw described above. A rake claw stopper plate made of a plate material can be brought into contact with the edge of the lower surface of the rake body side.

  A dust remover according to the present invention includes the rake described above.

  In this case, a plurality of types of rakes can be provided in which the positions of the rake claws that bite into the screen of the screen are different.

The rake of the dust remover of the present invention and the dust remover equipped with the rake have the following effects.
1. Even when the mesh width is small and the rake claw pitch is small, it can be easily manufactured.
2. The rake claw assembly is lightweight and easy to assemble, and the working time can be shortened.
3. Since the spacer is assembled with the spacer interposed therebetween, the rake claw pitch can be accurately maintained, and troubles such as deformation of the rake claw hitting the screen can be prevented.
4). Since it is assembled with the spacer in between, even if the rake claw is damaged, only the damaged rake claw can be replaced, which is economical.
5. It is not necessary to correct the distortion when attached by welding, and the working time can be shortened.

And by attaching the rake claw assembly to the rake body with the rake claw mounting bolt protruding from the spacer, the rake claw assembly can be easily attached to the rake body, especially adopting this mounting structure By doing so, the dimension of the rake in the width direction is not increased, and the shape of the dust remover can be made compact.

  Further, a rake upper plate made of a flat plate material is brought into contact with an edge of the rake main body side of the upper surface of each rake claw constituting the rake claw assembly, and the lower surface of each rake claw. By placing a rake claw stopper plate made of a plate material on the edge of the rake body side, the rake claw assembly can be securely attached to the rake body and the large size captured by the screen Garbage can be scraped up by the rake upper plate, and the rake strength can be improved.

  In addition, by providing the dust remover with multiple types of rakes with different rake claws that bite into the screen screen, the number of rake claws for each rake is reduced and the dimensions between the pitches of the rake claws are reduced. Therefore, the assembly work is easy and the working time can be shortened.

It is a side view which shows one Example of the dust remover provided with the rake of this invention. It is an enlarged view of the principal part of the dust remover. It is a side view which shows one Example of the rake of the dust remover of this invention. It is a top view (XX sectional drawing of FIG. 2) which shows the rake. It is a side view which shows the deformation | transformation Example of the dust remover provided with the rake of this invention. It is a top view (corresponding to XX sectional view of Drawing 2) showing rake used for the dust remover.

  Hereinafter, embodiments of a rake of a dust remover of the present invention and a dust remover including the rake will be described with reference to the drawings.

  1 to 4 show an embodiment of a dust remover rake of the present invention and a dust remover equipped with the rake.

  As shown in FIG. 1, the dust remover A is a so-called automatic dust remover, and includes a screen S and a plurality of rakes R. The rakes R are formed by upper and lower sprockets Sp and Sp (usually upper sprocket Sp). Is driven by a drive mechanism (not shown).) It is attached to a drive chain Ch spanned between and is moved along a guide mechanism such as a guide rail (not shown), and is captured by the screen S. The garbage is scraped up and discharged to a carry-out mechanism such as a carry-out conveyor Co.

  In this case, the screen S is composed of a large number of screen bars arranged in parallel so as to have a predetermined mesh width. Although not particularly limited, the spacer Ss is sandwiched between plate members constituting the screen bar. And what was assembled using through bolt Sb can be used conveniently.

  In addition, the rake R is configured by forming each rake claw 1 with a plate material, sandwiching a spacer 2 between the plate materials constituting each rake claw 1 and assembling it with a through bolt 3 to form a rake claw assembly. The rake claw assembly is configured to be attached to the rake body 4.

In this case, the rake claw assembly is attached to the rake body 4 by rake claw attachment bolts 5 protruding from the spacer 2.
As a result, the rake claw assembly can be easily attached to the rake body 4, and in particular, by adopting this attachment structure, the dimension of the rake R in the width direction is not increased, and the shape of the dust remover A is made compact. can do.

In this embodiment, when the rake claw assembly is attached to the rake body 4 by the rake claw mounting bolt 5 protruding from the spacer 2, the liner plate 9 is interposed between the rake claw assembly and the rake body 4. I am going to intervene.
The liner plate 9 is provided so that the back surface of the plate material constituting each rake claw 1 of the rake claw assembly is flush with the rake body 4 in order to bring the back surface of the rake claw assembly into close contact with the rake body 4.

  The attachment structure for attaching the rake claw assembly to the rake body 4 is not limited to that of the present embodiment. For example, the attachment structure in which the rake side plate 6 is extended and the bolt 3 is directly fixed to the rake side plate 6. Can also be adopted.

Further, in this embodiment, the edge of the upper surface of each rake claw 1 constituting the rake claw assembly on the rake body 4 side (in this embodiment, the notch portion 11 is formed). A rake claw stopper plate 8 made of a plate material is arranged at the edge of the rake body 4 side of the lower surface of each rake claw 1 while contacting the rake upper plate 7 made of a flat plate in a flat shape. It is made to contact by.
As a result, the rake claw assembly can be securely attached to the rake body 4, and large dust captured by the screen S can be lifted up by the rake upper plate 7, thereby improving the proof strength of the rake R. .

By the way, in the present embodiment, the rake R having the same structure, specifically, the rake R having the rake claws 1 that bite into all the screens of the screen S is used for the plurality of rakes provided in the dust remover A. However, as in the modified embodiments shown in FIGS. 5 to 6, a plurality of types of rakes Ra and Rb (in this embodiment, the screen S The rake Ra having the rake claw 1 that bites every other screen and the rake Ra is a rake Rb having the rake claw 1 whose phase is changed, and the rake Ra and the rake Rb are arranged every other rake. In addition, a rake having two rake claws 1 that are inserted into the screen S of the screen S at intervals of two or more is used (in this case). , Using three or more types of rake having rake nail 1 having different phases, it is necessary to be arranged that all.) It is also possible.
As a result, the number of rake claws 1 for each of the rake Ra and Rb is reduced, the dimension between the pitches of the rake claws 1 can be increased, the assembly work is facilitated, and the work time can be shortened.

  As mentioned above, although the rake of the dust remover of the present invention and the dust remover equipped with the rake have been described based on a plurality of examples, the present invention is not limited to the configuration described in the above examples, and the gist thereof The configuration can be changed as appropriate without departing from the scope of the invention.

  The dust remover rake of the present invention and the dust remover equipped with the rake have a characteristic that the rake claw pitch of the dust remover can be set small while maintaining the strength of the rake claw. It can be suitably used for various dust remover applications such as a U-shaped dust remover and a roller chain dust remover.

S screen R rake Ra rake Rb rake 1 rake claw 2 spacer 3 through bolt 4 rake body 5 rake claw mounting bolt 6 rake side plate 7 rake upper plate 8 rake claw stopper plate 9 liner plate

Claims (4)

Each rake claw is composed of a plate material, a spacer is sandwiched between the plate materials constituting each rake claw, and assembled using a through bolt to form a rake claw assembly, and the rake claw assembly is projected from the spacer A dust remover rake , wherein the rake is attached to the rake body with a rake claw mounting bolt . The upper surface of each rake claw constituting the rake claw assembly is brought into contact with the edge of the rake body side by arranging a flat plate of a rake upper plate, and the rake on the lower surface of each rake claw. the edge of the main body, a dust remover rake according to claim 1, characterized by being brought into contact by arranging the rake claw stopper plate made of plate material. Claim 1 or dust remover, characterized in that it comprises a rake 2 wherein. 4. The dust remover according to claim 3, comprising a plurality of types of rakes having different positions of rake claws that bite the screen.

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