JPS6111307Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a dust remover that scrapes up garbage that has landed on the bar screen from the front with a rake bar that is attached freely to the main chain. This invention relates to a shock absorbing device that softens the large reversal impact when a rake bar for frying turns through a lower chain sprocket.

In the case of the dust remover, the rake bar is attached to the main chain in a free state, so when it is reversed via the lower chain sprocket, the tip side (rake side) of the rake bar is suddenly reversed due to its own weight. Since it collides with the bottom plate, it has the disadvantage of causing damage to the rake, vibration of the machine, generation of noise, etc.

The purpose of the present invention is to propose a dust remover that does not have such drawbacks.The structure is such that chain sprockets are arranged at the top and bottom positions on the front side of the bar screen, and the main chain is stretched between these chain sprockets. In a dust remover, an attachment is attached to the main chain, and a rake bar with a rake attached to the tip of the attachment is rotatably attached to the attachment shaft to scrape up debris that has washed up on the bar screen. A rake guide having an eccentric curved surface bulging toward the turn radius side relative to the support shaft of the chain sprocket is fixed, and the proximal end of the rake bar is further extended than the mounting shaft of the rake bar, and this extended side is placed inside the chain. A shock absorbing device for a dust remover, which is formed by bending a concave curved surface to form a copying part and a guide pawl, and is set in a positional relationship such that the copying part and the guide pawl come into contact with the rake guide when the rake bar turns. It is designed so that it does not fall down suddenly and receive impact when turning at the bottom.

The figure shows a dust remover according to the present invention, in which 1 is a machine frame consisting of side frames 2, 2', bottom plate 3, and top plate 4, and 5 is a machine frame consisting of side frames 2, 2', bottom plate 3, and top plate 4. bearing 7,
a drive shaft rotatably attached between 7'; a support shaft 6 attached via side plates 2, 2' at a position that is not submerged in water at the lower part of the machine frame 1;
8 is a chain sprocket fixed to the center of the drive shaft 5, 9 is a chain sprocket freely rotatable to the center of the support shaft 6, and 10 is spanned between the chain sprockets 8 and 9. This is the main chain.

11 is a bar screen constructed in the lower half of the machine frame 1, 12 is each bar, and each bar 12 is connected to the bottom plate 3.
A support bar 1 is extended from the free end side.
It is supported by 3.

Reference numeral 14 denotes an attachment fixed to the main chain 10, and the lower end of a rake bar 15 is rotatably attached to the attachment 14 via a shaft 16. Incidentally, the rake bar 15 is made up of two plates that straddle the main chain 10.

17 is a rake attached to the tip of the rake bar 15 by a stop shaft 18 so as to move slightly by several angles; and 19 is a V-groove formed in the rake 17 so that the upper surface of the bar 12 engages with it.

20 is a beak-shaped guide claw formed on the lower end side of the rake bar 15.

Guide mounting shafts 21 and 21' are fixed to the support shaft 6, and the guide mounting shafts 21 and 21' are located on both sides of the chain sprocket 9.

22, 22' are the lower parts of the guide mounting shafts 21, 21', and are connected to the main chain 10 and the rake bar 1.
The rake guide 22, 2 is configured to have an oblique curved surface on the turn side of the rake guide 5.
The position 2' is the guide pawl 2 of the rake guide 15.
0 and 20' are the contact positions. As shown in FIG. 6, the positions and directions of the rake guides 22 and 22' can be adjusted by changing the directions and positions of the guide mounting shafts 21 and 21'.

23 is a scraper arranged in the direction of the extension of the bar 13 and in contact with the upper surface of the moving rake 17; 25 is a drive motor; 26 is a drive belt; 27 is a drive pulley fixed to the drive shaft 5;
8 is a basket.

FIG. 7 shows another embodiment of the present invention, in which chain sprockets 8, 8', 9, and 9' are arranged at upper and lower positions on both sides of the bar screen 11, a master chain 10 is attached to each of them, and a rake 17 is shaped. This configuration is supported by a rake bar 15.

Next, the operation of the above embodiment will be explained. The dust remover is installed facing the flow direction of the drain. Garbage being drained is stopped by the bar screen 11 and accumulated there. Rake 1 for collected garbage
7 scraped up the bar screen 11,
It is expelled from this upper end into the rear basket 28.

In the above action, the present invention is based on the main chain 10.
Since the rake bar 15 is rotatably attached to the bar screen 11 using the attachment 14, when the rake 17 scrapes up the bar screen 11,
Rake 1 with the weight of rake 17 and rake bar 15
7 comes into contact with the bar screen 11, and scrapes up trash while running along the slope of the bar screen 11. After removing the dirt, the rake 17 comes into contact with the scraper 23 while moving further. Since the scraper 23 is fixed, the rake 1
7 slightly moves and tilts, and the rake 17 rotates in the direction of arrow a while sliding against the scraper 23 as shown by the dashed line in FIG.
When it leaves the chain, it falls vertically due to its weight and reaches the turn side of chain sprocket 8.

Attachment 14 is chain sprocket 8
When the rake bar 15 starts turning along the rotation axis 5, the rake bar 15 remains vertical until it comes into contact with the rotation axis 5. When the rake bar 15 abuts the rotation axis and the attachment 14 turns further, the rake bar 15 becomes vertical as shown in Fig. 4b. 15, the rake 17 side is lifted up with the rotating shaft 5 as a fulcrum. And further attachment 14
makes a turn, the rake bar 15 moves as shown in Fig. 4c.
It becomes horizontal as shown in , then tilted as shown in d, and furthermore, as shown in e, the rake 17 side rests on the main chain 10 and moves downward.

Attachment 14 is chain sprocket 9
When the rake bar 15 starts turning along the support shaft 6 (guide attachment shafts 21, 21'), the rake 17 lifts up, the rake bar 15 becomes vertical, and when the attachment 14 turns further, the vertical balance is lost. Rake bar 15 is the third
It collapses as shown in Figure f. When this falls down, the rake guide 2 formed on the guide mounting shafts 21, 21'
The tracing portions 20a, 20'a of the beak-shaped guide claws 20, 20' are in contact with the curved surfaces 22a, 22'a of the guide claws 2, 22', and this contact portion is used as a fulcrum. Therefore, the rake bar 15 does not fall down suddenly, but gradually falls down, and the rake 17 comes into contact with the bottom plate 3 as shown in g. The rake 17 in contact with the bottom plate 3
Scrape in the upper part, and then press bar 1 as shown in h.
2 and scrape along the bar 12.

The above are the functions of the dust remover according to the present invention, and the effects thereof will be listed next.

a. By using only one main chain 10 for running the rake 17, only two chain sprockets are required, so in this case, the number of parts is small and manufacturing is easy at low cost.

b In the present invention, the rotating shaft 5 is rotated by the drive motor 24, but by attaching a manual handle to the rotating shaft 5, a simple manual dust remover can be obtained.

c When the rake bar 15 turns on the chain sprocket 8 side, the rake bar 15 rotates around the rotating shaft 5 as a fulcrum, and the attachment 14 moves away from the fulcrum, so the radius of rotation on the rake 17 side is small; The top plate 4 side can be lowered and the aircraft body can be made smaller.

d When the rake bar 15 is reversed on the chain sprocket 9 side, its guide claws 20, 2
0' copying parts 20a, 20'a are rake guides 2
Since the rake bar 15 is in contact with the curved surfaces 22a and 22'a of 2 and 22' and prevents the rake bar 15 from falling down suddenly and increasing the impact, a dust remover with increased durability and less vibration and noise can be obtained.

e Rake 1 attached to the tip of rake bar 15
Since the dirt on the bottom plate 3 is scraped at step 7, even the dirt accumulated on the bottom can be completely removed.

f By designing the length of the rake bar 15 according to the water depth, the main chain 10 and chain sprocket 9 can be positioned above the water surface, thus improving the durability of the main chain 10 and chain sprocket 9. At the same time, it is possible to reduce the number of maintenance (oiling) and other tasks by half.

g Since the rake 17 is attached to the rake bar 15 so that it can move slightly by a certain angle, even if it gets caught due to clogging when raking up the bar screen 11 surface, it can be released and excessive load can be avoided. There is no need to worry about damaging any parts.

h Since the scraper 23 is installed in the extending direction of the bar screen 11, the rake 17 after removing the debris comes into contact with it, moves and escapes due to the slight movement (tilting) action of the rake 17, and this action causes the rake 17 to Debris adhering to the surface will be cleaned.

[Brief explanation of the drawing]

Fig. 1 is a front view of the dust remover according to the present invention, Fig. 2 is a sectional view taken along line A-A, Fig. 3 is an explanatory diagram of the rake bar and rake action at the bottom of the dust remover, and Fig. 4 is the dust remover. Fig. 5 is a perspective view of the rake bar and rake, Fig. 6 is a sectional view of the rake guide part, Fig. 7
The figure is a front view of a dust remover showing another embodiment. 1... Machine frame, 2, 2'... Side plate, 3... Bottom plate,
4... Top plate, 5... Rotating shaft, 6... Support shaft, 8, 9
...Chain sprocket, 10 ... Main chain, 11 ... Bar screen, 14 ... Attachment, 15 ... Rake bar, 17 ... Rake,
20, 20'...Guide claw, 22, 22'...Rake guide, 23...Scraper.

Claims (1)

[Scope of Claim for Utility Model Registration] 1 Chain sprockets are arranged at the upper and lower positions on the front side of the bar screen, a main chain is spanned between the chain sprockets, an attachment is attached to the main chain, and an attachment is attached to the main chain. In a dust remover that is configured to be rotatably attached to a shaft with a rake attached to the tip and scrape up debris that has landed on the bar screen, the rake bar is attached to the tip of the rake bar on the turn radius side with respect to the support shaft of the lower chain sprocket. A rake guide having a bulging oblique curved surface is fixed, and the proximal end of the rake bar is extended further than the attachment axis of the rake bar, and this extended side is bent inward of the chain to form a tracing section and a guide pawl consisting of a concave curved surface. A shock absorbing device for a dust remover, the buffer device being set in a position where the copying portion and the guide claw contact the rake guide when the rake bar turns. 2. A buffer device in a dust remover as set forth in claim 1 of the utility model registration, which is configured such that the position and direction of the rake guide can be adjusted. 3. A buffer device in a dust remover as set forth in claim 1 of the utility model registration, which comprises a rake bar having a beak-shaped base.