JPH10309406A - Sludge scraper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To execute traveling more surely by eliminating slip or the like by a method wherein a scraper is linked to a rotary driver, and after the scraper obtains respective attitudes of scraping and returning, a clutch linking mechanism with which power transmission to the scraper is placed in a cut off state, is provided. SOLUTION: A wheel 54 is rotated in the direction F or the direction R following regular rotation or reverse rotation of a rotary driver 53, and consequently a sludge scraper advances or returns according to the direction F or the direction R. The sludge scraper comes to a position wherein a principal scraper 42 exceeds a rear end side of a pit with advance in the direction F. A subscraper 48 may be also advanced to the position of exceeding the same rear end side. Then, with the revers rotation, the sludge scraper enters a return attitude, and a principal scraper 42 and a sub-scraper 43 are lifted as a virtual line. The principal scraper 42 is lifted forewards, and the sub-scraper 43 is respectively lifted rearwards. For the linking, change of ascent or descent is executed with a clutch linking mechanism 63.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a sludge scraping device.

[0002]

2. Description of the Related Art In a treatment pond such as a sedimentation pond, sludge settled on the bottom is scraped to a pit by a sludge scraping device provided with a scraper to be removed. The sludge scraper reciprocates along a guide rail laid on the bottom of the pond. Do not return.

[0003]

Incidentally, the conventional sludge scraper has been configured so that the scraper is driven in conjunction with the body having the running wheels driven by the motor with the speed reducer. It is conceivable that the running wheel slips on the guide rail, and a countermeasure has been desired.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to provide a sludge scraping device capable of running more reliably.

[0005]

According to a first aspect of the present invention, there is provided an airframe that reciprocates parallel to a bottom surface of a treatment pond such as a sedimentation pond, and is mounted on the airframe and reciprocally rotated. A rotary drive device, and a track line mounted on the body and rotated in conjunction with the rotary drive device and stretched along a direction in which the body travels is wound in the middle of the line and the body A wheel capable of traveling,
A scraper which is provided to be capable of moving up and down and which is in a crouching position by descending and which is in a returning position by ascending, and which rotates the scraper in one direction by rotating in one direction to rotate the scraper in the other direction. A clutch interlocking mechanism that interlocks the scraper with the return posture by the rotation, and that switches the power transmission to the scraper to a cut-off state after the scraper has obtained the scraping and return postures.

According to a second aspect of the present invention, in the first aspect, the scrapers are disposed before and after the fuselage, the front scraper is a main scraper, and the rear scraper is a sub-scraper.

[0007] The invention described in claim 3 is claim 1 or 2.
, The scraper is supported so as to rotate around the horizontal axis, and has a balancer that switches the rotational moment between positive and negative when passing above the horizontal axis.

According to a fourth aspect of the present invention, in any one of the first to third aspects, a single track type guide rail is laid on the bottom surface of the treatment tank, and the airframe reciprocates using the guide rail as a track. It has become. Here, the single track type means that a single track is formed by laying an H-shaped channel material horizontally, that is, a single rail such as a so-called monorail type, and a pair of left and right sides separated from each other. In the latter case, it is free to connect the left and right with horizontal members. However, the present invention also includes a conventional type in which the rails are separated from the left and right ends of the pond, in addition to the single track type.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the illustrated embodiments. 1 to 4 show a preferred embodiment of the present invention. FIG. 1 is a partial cross-sectional side view showing a sludge scraping device in relation to an entire pond, and FIG. 2 is the sludge scraping device. FIG. 3 is a plan view showing the sludge scraping device in a partially cutaway shape, and FIG. 4 is a front view of the sludge scraping device. FIGS. 5 to 9 are explanatory views showing the operation of the clutch interlocking mechanism.

In these figures, reference numeral 1 denotes a treatment pond, which is firstly implemented in a final sedimentation basin or an aeration tank.
Is provided with side walls 2 which are both sides in the longitudinal direction of a rectangular plane, and front and rear end walls 3 which are orthogonal to the side walls 2. This treatment pond 1 is shown in FIG.
As shown in FIG.
And one end wall 3 and both side walls 2, 2 as shown in FIG.
Are formed at their lower ends as inclined walls 5.

The bottom wall 6 of the treatment pond 1 is gently lowered and inclined in the direction of the pit 4 in FIG. 1, and a cross section is shown in FIG. A guide rail 8 as shown is laid. The guide rail 8
An approximately J-shaped elongated rail body 12 having an upper flange 9 and a lower flange 10 and having a vertical web 11 between its ends is opposed to each other with a left and right separation.

Between the two rail bodies 12, a U-shaped mounting board 13 having a groove facing upward is fixed along the longitudinal direction. The mounting substrate 13 is fixed via a nut 15 to an anchor bolt 14 screwed to a chemical anchor embedded and fixed in the bottom wall 6. This mounting board 13
On the upper side, a holding plate 16 is fixed to the anchor bolt 14 via a nut 15 at several places in the longitudinal direction.

At the upper part on the inner side of each rail body 12, receiving plates 17 are provided at several places, the receiving plates 17 are provided with back nuts 18, and the rail bodies 12 are connected via these receiving plates 17 to each other. The cover plate 19 is fixed by the stopper 20. The cover plate 19 is flush with the upper surface of the rail body 12. These form a single track type guide rail 8.

The present sludge scraper includes a machine body 22. As shown in FIGS. 2 and 3, the airframe 22 includes a pair of left and right side frame members 25, 25 oriented longitudinally in the front-rear direction.
And a front frame member 23 and a rear frame member 24 which are provided orthogonally to the front and rear thereof and are formed to project right and left. A diagonal member 26 is provided between the side frame member 25 and the rear frame member 24.
Reinforced by connecting with.

Brackets 28 are suspended from the front and rear sides of the side frame member 25, and traveling wheels 29 are freely mounted on the body 22 via the brackets 28. The traveling wheels 29 travel on the lower flange 10 of the guide rail 8 as shown in FIG. Auxiliary scrapers 30 are vertically provided so as to correspond to the front and rear of the traveling wheels 29. The scrapers 30 have a triangular cross section and remove sludge in front of the traveling wheels 29. It is. The front and rear auxiliary scrapers 30 ...
Are provided with scraper stoppers 31 to be described later.

A front mount 33 and a rear mount 34 are integrated into the frame of the body 22. Brackets 35 are vertically provided downward through the mounts 33, 34. Are mounted with an anti-floating roller 36 that can contact the bottom surface of the upper flange 9 and a side roller 37 that can contact the end surface of the upper flange 9.

At the front of the front frame member 23 of the body 22,
While a pair of brackets 40 is provided, a bracket 41 is also provided at a rear portion of the rear frame member 24, and a main scraper 42 is provided via a front bracket 40, and a sub-scraper 43 is provided via a rear bracket 41. It is mounted so that it can swing up and down. 44 is a front shaft and 45 is a rear shaft. These shafts 44, 45 may be shorter than those shown in FIG.

The main scraper 42 is, as shown in FIG.
A single plate (one pair on the left and right sides) may be formed slightly shorter than the side walls 2 and 2, and a scraping plate 47 is attached to the lower end thereof by rubber or the like. Note that the auxiliary scraper 30 may be omitted because the scraping plate 47 also scrapes the sludge on the guide rail 8. Conversely, when configuring the auxiliary scraper 30, the scraper 47 may not be configured to be on the guide rail 8.

On the other hand, the sub-scraper 43 also has
2 and the scraping plate 48 is configured in the same manner as the front side. However, since the sub-scraper 43 advances after the main scraper 42 is raked, the height is reduced to 1/3. Even if it is formed as low as it is, it is enough for scraping.

The sub-scraper 4 is attached to the rear shaft 45.
The balancer 49 is provided so that the rearward rotation moment is the largest when the 3 is vertical, and the forward rotation is the largest when the ascent is horizontal. The balancer 49 switches the direction of the rotational moment when the rod 50 becomes vertical as a dead center. The balancer 49 can be adjusted to move up and down on the rod 50.

On the other hand, as a device for moving the body 22 forward and backward,
A mounting table 52 provided on the body 22 is provided with a rotation drive device 53 which is a motor with a reduction gear. The rotation driving device 53 enables a drum-shaped winding wheel 54 provided in the mounting table 52 to be rotatable around a vertical axis in a forward / reverse drive. The forward rotation is the F direction in FIG. 3 and the reverse rotation is the R direction in FIG.

Track filament 56 wound on wheel 54
Is a single wire rope.
As shown in the figure, it is guided on the end wall 3 through the sheave 57,
It is hung on a sheave 59 provided on a fixed bracket 58 on the end wall 3 and is connected to a weight-adjustable traction weight 60 via a spring 61. Both ends of the track filament 56 are pulled by a weight 60 with a certain force and are balanced by a spring 61, and the bracket 58 functions as a stopper. The track line 56 may be constituted by only the spring 61 or only the weight 60.
Further, the weight 60 may be moved up and down on the water surface. Further, the track filament 56 may be pulled by a recoil spring method which always acts with a constant force.

Thus, when the rotation driving device 53 rotates forward, the wheel 54 rotates in the direction F in FIG. 3, and when it rotates in the reverse direction, the wheel 54 rotates in the direction R in FIG. as a result,
The sludge scraping device moves forward or returns in response to the F or R direction.

The sludge scraping device reaches a position where the main scraper 42 crosses the rear end side of the pit 4 in FIG. The sub-scraper 43 may also be advanced until it exceeds the rear end side. When the sludge scraping device is brought into a return position by the reverse rotation, the main scraper 42 and the sub-scraper 4
3 lifts up like the imaginary line in FIG. Main scraper 4
2 lifts the sub-scraper 43 forward, respectively. This interlocking operation is switched between up and down by the next clutch interlocking mechanism 63.

The clutch interlocking mechanism 63 has upper and lower pawl wheels 65 and 66 independently rotatable about a longitudinal axis 64 of the wheel 54, and a disengagement mechanism provided on upper and lower surfaces of the wheel 54 so as to be rotatable simultaneously with the wheel 54. It has claws 67 and 68. Driving levers 71 and 72 having rollers 69 and 70 at their ends are attached to the upper and lower claw wheels 65 and 66, respectively. A vertical support shaft 74 is provided between the mounting table 52 and the body 22 in front of the wheel 54.
Around the upper and lower driven levers 75, 76 are rotatably provided together with the support shaft 74.

A front link 77 and a rear link 78 are provided on the support shaft 74 so as to rotate and respond together with the support shaft 74. The front link 77 is connected to the main scraper 42 via a ball joint 80, while the rear link 78
Is also connected to the secondary scraper 43 via the ball joint 80.
It is connected to. A trajectory correcting device 80 is provided before and after the wheel 54 in a vertical and horizontal axis shape.

Here, the operation of the clutch interlocking mechanism 63 will be described. FIG. 5 shows that the scraper 4 is moving while the sludge scraper is moving forward.
2 and 43 are in the solid line state in FIG. 1, of which the upper side of the clutch interlocking mechanism 63 is shown. FIG. 6 also shows the lower side. In FIG. 5, the wheel 54 is rotated in the F direction, the pawl 67 is engaged with the pawl wheel 65, and the drive lever 71 is also rotating in the F direction. When the driven lever 75 is kicked by the drive lever 71 from the state of the imaginary line in FIG. 3 and the balancer 49 moves forward beyond the dead center, the roller 69 moves as shown by the solid line in FIG.
Come outside. Therefore, even when the roller 69 rotates, the driven lever 75 does not interfere. In addition, both scrapers 42,
Reference numeral 43 stably maintains the scraping state by the rotation moment of the balancer 49 acting and the scraping force acting on the main scraper 42.

In the meantime, below the clutch interlocking mechanism 63, as shown in FIG. 6, a driven lever 76 is located in the rotation orbit of the roller 70. However, even if the pawl 68 rotates in the R direction, Since it does not engage, the driven lever 76 is not rotated. Note that the roller 70 is located below the driven lever 76 when the scraper is ready, but the pawl 68 is
Is stopped at the position indicated by the solid line in FIG.

When the sludge scraping device is switched from the forward movement to the return posture, the wheel 54 rotates in the direction R in FIG. 7 and the lower pawl 68 engages the pawl wheel 66. This allows
The roller 70 hits the driven lever 76 from the position of the imaginary line as shown by the solid line and kicks it. The driven lever 76 is swung out of the rotation orbit of the roller 70 by the balancer 49 as shown in FIG. Thereby, the main scraper 42 is lifted up and held via the front link 77. In addition, the sub-scraper 43 is also lifted and held via the rear link 78. As a result, the scrapers 42 and 43 are stopped by the stopper (not shown) when the balancer 49 moves forward, so that the scrapers 42 and 43 are in a stable return state.

At this time, as shown in FIG. 9, the mechanism above the clutch interlocking mechanism 63 rotates the driven lever 75 from the solid line position in FIG. 5 to the same position as in FIG.
Comes in orbit. However, since the pawl 67 rotates in the R direction but separates from the pawl wheel 66 and rotates, the roller 69 does not drive the driven lever 75. The upper pawl wheel 66 is on standby by a pawl 67 below the driven lever 75 in the drawing.

While the sludge scraping device is retracted while maintaining the return posture, the retraction is performed until the rear end of the sub-scraper 43 corresponds to the inclined wall 5 of the end wall 3. At that time, the rotation driving device 53 is reversely rotated in the forward direction,
Is rotated in the opposite direction to R in FIG. Thus, the upper mechanism of the clutch interlocking mechanism 63 is driven in reverse from the state shown in FIG. 9, and the lower mechanism is driven in reverse from the state of FIG. The mechanism above is such that the pawl 67 meshes with the pawl wheel 65 and the roller 69
Is rotated counterclockwise (F direction) in FIG.
The driven lever 75 is moved out of the track of the roller 69 by the balancer 49 as shown in FIG. At the same time, the scrapers 42 and 43 descend and enter the scraping state.

In the lower mechanism, the driven lever 75 comes on the rotation path of the roller 69 in conjunction with the upper mechanism as shown in FIG. 6, but the claw 68 rotates in the reverse direction (F direction) from the state of FIG. Even if it does not engage with the pawl wheel 66, the roller 69
Comes to a position above the driven lever 75 (on the illustration), it stops there and waits. The sludge scraper advances as it is.

FIG. 10 shows another embodiment of the guide rail. The guide rail integrates an appropriate number of transverse plates 83 in the longitudinal direction between rail bodies 82 similar to that shown in FIG.
The guide rail is fixed by inserting a hole of the horizontal frame 83 into the anchor 84 fixed in advance and fixing it with a nut. Others are the same as the above-mentioned embodiment.

FIG. 11 shows a side roller 85 with a flange 8.
6 so as to function not only as a side roller but also as a floating prevention roller. Incidentally, if a roller 87 in an oblique direction is applied to a corner of the rail main body 86 like an imaginary line, the function of the side roller and the floating prevention roller can be provided by one roller.

FIG. 12 shows a single H-shaped guide rail 89 in which a side roller 90 having a floating prevention function is brought into contact with the guide rail 89. It travels on the receiving plate 92.

FIG. 13 shows a guide rail 94 in which the lower plate 95 is formed of a wide H-shape, and a pair of groove-shaped mounting members 96 are mounted on the bottom of the lower plate 75. The guide rail 94 is fixed by inserting the nut 98 through the hole of the material 96 and fixing the nut 98 through the hole of the lower plate 95.

FIG. 14 shows a pedestal 10 having a lower lip 100.
An H-shaped rail main body 102 is placed on the guide rail 1 to form a guide rail.

In the above embodiment, the track orbit 56 of FIG. 1 may be replaced. In this case, since it was necessary to drain and replace the sedimentation basin in the past, this was a difficult operation. However, according to the embodiment, as shown in FIG. 56, one end of a new track line is connected to the left end of the drawing,
And set both ends of the new track line on the pond as shown in Fig. 1, and the replacement work is completed. Therefore, the replacement work does not require any drainage or complicated rope replacement. Become. On the other hand, the track filament 56
May be pulled and fixed with the sheave 57 at a certain height at both ends.

The above-described embodiment may be changed to another mode in the following points. Although the rotation driving device 53 is installed in a vertical axis, it may be installed in a horizontal (horizontal) axis. On the other hand, when the device 53 is installed on the vertical axis,
Can be installed at a lower level than shown. For example, it may be installed at the same height or lower than the height of the body 22. When the wheel 54 is lowered, it may pass between the guide rails. The traveling wheel 29 may travel directly on the bottom of the pond. The traveling wheels may be of a crawler type or a rubber tire type. Further, the running wheels are like drums and may be two or three wheels.

The balancer can be replaced with a spring. Further, a balancer and a spring can be used together. The front and rear scrapers 42 and 43 may be configured only at the front or only at the rear. The floating prevention roller may be provided inside or outside the traveling wheel 29 in some cases. The advance / retreat control of the sludge scraping device may be, for example, a cycle in which the entire process is advanced once, the cycle of retreating to a certain intermediate position and advancing is repeated several times, and then the retreat is completed. . This corresponds to the large amount of precipitates on the pit 4 side. In some cases, the sludge scraping device is configured so that a scum floating on the water surface can be scraped by standing uprights. The rake plate is raked to the right in FIG. 1 and returns below or above the water surface.
Can be performed.

FIG. 15 shows another embodiment of a guide rail laying method. The reference numeral 110 shown in the figure is an existing pond bottom wall, and a rolling band 111 made of concrete or mortar is laid in the central zone between the widths of the bottom wall 110 as shown in FIG. Have been.

Prior to laying the rolling belt 111, anchor bolts 112 are planted in a point shape along the center of the pond width.
A receiving nut 113 is mounted via the bolts 112. Using this receiving nut 113, a rail receiving plate 115 at the lower end of the guide rail 114 is inserted and installed.

The guide rail 114 is provided with an elongated rail main body 116 having a rectangular cross section as an upper part, and an angle 117 and a support 11 are provided at several lower parts of the main body 116.
8 and a receiving pole portion composed of the rail receiving plate 115 are integrated.

When the guide rail 114 is embedded and fixed, the rail receiving plate 115 is set on the receiving nuts 113 of the anchor bolts 112 so that the rail receiving plate 115 is evenly placed on the receiving nuts 113.
4 is fixed.

The guide rails 114 laid in this way
On the other hand, the rolling zone 111 is constructed later. Rolling belt 1
On 11, running wheels 120 such as solid tires and crawlers can run freely. In addition, a sub-roller 121 serving also as a side roller and a floating prevention roller can be brought into contact with both lower slopes of the rail body 116, and the roller 121 has a cylindrical body portion and an umbrella-shaped portion as shown by a virtual line. May be used.

Although the rail body 116 is oriented so that each side is inclined at 45 degrees, the rail body 116 may be oriented in the right direction. Further, a wire 122, a wiring code or the like may be passed through the main body 116 for convenience. As shown in FIG. 16, the lower part of the wire 122 and the like
In some cases, a driving method may be adopted such that the wire around the wire passes through the body 116 along the body 116. In this case, the wire 122 is made inward. As an example, FIG.
As shown in FIG.
At the same time, the idle roller 125 having a horizontal axis is provided at several places per one body 116, for example, and is detachable from the outside with a fastener.

Further, as shown by a broken line in FIG. 15, a position control sensor 126 using a non-contact switch or the like can be set in the rolling band 111 in a simultaneous buried manner. By this sensor 126, for example, control such as halfway stop and reverse rotation can be given to the driving means of the sludge scraping device at any position in the longitudinal direction of FIG.

In the above embodiment, the running wheels 120
May run on the bottom wall 110. in this case,
A travel rail plate may be laid on the bottom wall 110.
In addition, the support column 118 is provided in a cylindrical shape at a point as shown in FIG. 16, but may be formed by a cylindrical body or the like that is slightly longer in the longitudinal direction of the pond. Further, there may be a case where a side of the rail body 116 along the slope and the other side facing downward are formed with a curved plate material, and these pairs are separated from each other back to back to form a column. In this case, internal reinforcement can be added. The strut 118 is a pair or three in the left and right (pond width direction).
You may distribute more than this.

Further, as shown in FIG. 17, the rail main body 116 can be constituted by a cylindrical pipe. Other geometric shapes will be adopted.

FIG. 18 shows a pedestal 131 with a flange 130.
In the one on which I-shaped guide rail 132 is laid,
This is an embodiment showing that a wire (drive cable), a power distribution cord, or the like can be passed through the pedestal 131 indicated by a mark.

[0051] , Through which a wire or the like indicated by ● passes. This guide 136 may be employed in the embodiments shown in FIGS. 18, 15, and 17.

FIGS. 20 to 22 show another embodiment of the sludge scraping device. In the embodiment, the lower portions of the side walls 201, 201 of the settling basin (the construction state is shown in FIGS.
1), a pair of left and right guide rails 202 are symmetrically fixed. The guide rail 202 is a U-shaped channel material, but may have another cross-sectional shape such as an L or H shape, a square shape, a round shape, and the like. In addition, the same guide rail 202
One or two as shown in FIG. 30 or FIG. 31 may be arranged at the center of the pond width. This is similarly applied to the following embodiments.

On a pair of left and right guide rails 202, a sludge scraping device driven forward and backward by a conductive rope 203 which is a wire rope at the center of the pond is mounted. The apparatus includes an airframe formed by connecting a connecting member 205 between a pair of left and right frames 204 in a horizontal manner.

Each of the frames 204 has a running wheel 2
07 are provided one by one in front and back, and an auxiliary scraper 208 for removing sludge on the guide rail 202 is provided at the front and rear ends by a rubber plate or the like. Running wheel 207
Is provided with a flange so that the guide rail 202 does not come off. The connecting member 205 has an L shape or the like, and a rotation shaft 209 is rotatably provided near the connecting member 205. The rotating shaft 209 is rotatable with the scraper 2.
10 is provided. The rotating shaft 209 is suspended between the frames 204, but may be shortly projected from the frame 204.

The scraper 210 is composed of a metal plate having an elongated horizontal band shape and a scraper plate made of rubber, metal or the like at the lower end thereof. As shown in FIG. 21, the scraper 210 can obtain a vertical scraping state and a horizontal non-scraping state. In each state, one of the two right-angled surfaces of the one connecting member 205 is stopped.

Although one conducting cable 203 passes through the center of the pond, even if the same cable is used, the connecting strip 2 at the upper end of the scraper 210 is used.
Only the portion near 11 may be shaped like a letter C as shown in FIG. The number of conduction cords 203 may be one on the left and right. Further, the frame 204 may be a simple plate. Further, as shown in FIG. 23, rollers 212 may be provided on the front and rear from the frame 204, and the conductive lines 203 may be guided by the rollers 212.

As shown in FIG. 24, the connecting member 205 may include a cushioning member 215 in the spacer 214. Also, as shown in FIGS.
05, and the scraper 210 is rotated and stopped between them.
Alternatively, the scraper 210 may be provided with the roller 17 and the scraper 210 may be driven to rotate.

FIG. 27 shows another embodiment. Frame 2
The connecting member 205 having an L-shaped portion with the mountain portion facing upward is provided between the front portions of the portions 04.
Is fixed.

FIGS. 28 to 31 show how to install the guide rail 202. FIG. FIG. 28 shows a guide rail 202 arranged slightly above the lower end of the side wall 201.
9 is fixed from the side wall 201 to the slope.
You may make it fix only to a slope. FIG. 30 shows the bottom wall 2
20 is a pair of left and right guide rails 202,
As shown in FIG. 31, the cross-sectional shape can be freely set. Bottom wall 22
Guide rails 202 may be provided at both left and right ends of the zero.

FIG. 32 shows a drive cable (having a motor with a speed reducer and a rotary drum) provided at two places on the left and right of the pond, and a conductive cable (left and right 1) driven forward and backward by wheels 222.
203) is provided with a scraper 210 having a desired cross-section such as a triangle or a triangle, and the conductive cable 203 behind the scraper 210 is slackened in the forward direction which is the left direction, and the conductive cable 203 is slackened in the retreating direction. Is controlled so that both sides are tight. In addition, scraper 2
10 may be provided with rollers that idle along the bottom wall. Further, a guide rail 202 may be provided.

FIG. 33 shows an embodiment which comprises a lower guide rail 224 and an upper guide rail 225, and has transfer guide rails 226 and 227 at one end and the other end thereof. The device A advances in the pit direction along the lower guide rail 224, during which the transfer guide rail 226
Are raised as shown by phantom lines, and at the forward end, the guide rails 226 are lowered as shown by solid lines. Then, the device A rides on the upper guide rail 225 along the guide rail 226 and retreats. The device A moves over the lowered guide rail 227 to the lower guide rail 224.
Transfer to This cycle is repeated.

As shown in FIG. 34, the traveling wheel 207 may pass through the lower guide rail 224.
In this case, a notch 229 may be formed in the guide rail 224, and the tip of the transfer guide rail 226 may be engaged therein.

FIG. 35 shows the apparatus A in which the scraper 210 is disposed at the forward end. FIG. 36 shows a device provided with scrapers 210 at both front and rear ends of the device A. FIG. 37 shows a device provided with the scraper 210 only at the rear end of the device A, and FIG. 38 shows a device provided with the scraper 210 between the front and rear of the device A. As shown in FIG. 35, a water purifying material 231 such as activated carbon or ceramic with holes, which promotes the growth of bacteria, may be provided at an appropriate place of the device A so as to be able to accompany the device A. The water purification material 231 may also serve as a settling means. Further, the apparatus A may include hanging members 232 for preventing the settled sludge from springing up.
The running wheel 207 may be a tire. This is the same in other embodiments.

FIG. 39 shows another embodiment. The embodiment includes a frame 2 including a traveling wheel 207 traveling along a pair of left and right guide rails 202 and a guide roller 234.
04 A guide roller 235 is also provided on the front side of the binder 205. Then, the scraper 21 is placed between the frames 204.
0 has been passed. The scraper 210 is fixed vertically as indicated by the solid line. The scraper 210 may function as a connecting member, and the connecting member 205 may be only an arm portion that stands up on the left and right.

As shown by the solid line, the device A moves forward while standing up, and retreats while tilting forward like a virtual tip. That is, the forward movement is performed by the traveling wheel 207 and the rear guide roller 234, and the backward movement is performed by the traveling wheel 207.
And a guide roller 235.

FIG. 40 shows that the frame 204 is
The device A is provided with a side roller 238 capable of moving back and forth along the guide rail 202 and preventing lateral deflection.
0 is rotatably provided, and the scraper 210 is
The front and rear ends of the rotation are stopped by a front end of the frame 204 and a stopper 239 provided on the upper surface. The conductive cable 203 is guided by a wheel 222. Here, the conductive cable 203 is further lifted after retreating by a guide rail 202 extending to a pond so that it can be used for maintenance or the like. Incidentally, the guide rail 202 may be arranged at the center of the pond width as shown by a virtual line in FIG.

FIGS. 42 and 43 show pit 2 of the sedimentation basin.
An example is shown in which the suction pipe 242 is generally provided in the inside 41, but the apparatus A is configured so as not to interfere with the pipe 242. The device A includes running wheels 207 on left and right frames 204.
The frame 204 is connected to each other by a connecting member 205, and a scraper 210 is provided at the rear of the frame 204 so that the frame 204 can be moved by the conductive cable 203. Connecting material 2 in this case
05 is between the front and rear of the device A, so that even if the device A moves forward, it does not interfere with the pipe 242. Pipe 242 is device A
May be arranged at the rear end.

A support 243 may be provided upright on the connecting member 205, and a deformable rubber tube or a rubber plate-shaped scum scraper 244 may be provided thereon.

FIG. 44 shows a shutter type scraper 21.
0 with respect to device A. Reference numeral 246 denotes a guide, which is fixed to the front end of the frame 204 at right angles, and the scrapers 210 move up and down so that the roller 247 follows the guide 246. The upper ends of the scrapers 210 are made to respond by the conductive cable 203. When the conductive cable 203 is driven forward, the scraper 210 goes down and stops at the lower end of the guide 246, and in this state, the scraping is performed. You. Conversely, when the conductive cable 203 is driven, the scraper 210 is lifted up, is in a non-scraping state, and retreats. Note that a scraper 210 can also be provided on the rear side so as to be reversely rotated by the conversion belt 248 as shown by a virtual line. Also, the scraper 21 is provided only at the rear.
0 may be equipped. The guide rails may be paired on the left or right or in the center of the pond.

FIG. 45 shows a frame 204 in which a traveling wheel 207 is allowed to run on a guide rail 202. A stay 250 is provided in front of and behind the frame 204. The scrapers 210 which can be switched horizontally in a non-scraping state are arranged.

FIG. 46 and FIG. 47 show that a running wheel 207 that runs idle in the left and right guide rails 202 is provided near the lower portion of the scraper 210, and a guide roller 253 is provided above the scraper 210 to provide a guide rail 202.
It can be moved up and down with respect to. There are two scrapers 210 at the front and back, and between these two links 2 at the upper end
51 are connected. When the transmission cable 203 is driven forward, the traveling wheel 207 is moved to the guide rail 202.
The guide roller 253 is located inside the scraper 21
It rises with 0 and runs. On the other hand, the conduction cable 203
Is driven backward, the scraper 210 inclines in the backward direction, and the guide roller 253 causes the guide rail 20 to move.
Step on 2 and do a retreat in that state. Thereby, the lower end of the scraper 210 is lifted, so that the sludge is not scraped back.

FIGS. 48 and 49 show an embodiment in which the frame 204 is formed long in the front and back. The frame 204 has three or more scrapers 210 in the front and rear (or more).
Has been deployed. In addition, as shown in FIG. 49, a fixed shaft 252 is fixed between the frames 204 also as a connecting material,
The scraper 210 is rotatable on this.

FIGS. 50 to 52 show another embodiment. In this embodiment, two connecting members 205 are arranged in front and rear between a pair of left and right frames 204, reinforced with diagonal members 255, and a scraper 210 is arranged at the rear end of the apparatus A. And
Side roller 256 idles in guide rail 202
Is also provided.

FIG. 53 and FIG.
58, and a scraper 210 vertically moving up and down the guide 258.
3, a receiving roller 259 is provided at the upper end of the scraper 210, and a support arm 260 on the frame 204 is provided with an arm 261 having a long groove that rotates while meshing with the receiving roller 259. It is. The arm 261 is moved by the lever 262 to the conductive cable 203.
Respond to

As shown in FIG. 53, when the conductive cable 203 is driven forward, the arm 261 is rotated forward by the lever 262, and the scraper 2 is rotated via the receiving roller 259.
Press 10 down. As a result, it is in a scraping state and moves forward to scrape the sludge. When the conductive cable 203 is driven backward, as shown in FIG. 54, the lever 262 rotates backward and the arm 261 is lifted, so that the scraper 210 is lifted via the receiving roller 259. As a result, it is in a non-scraping state and retreats.

[0076]

As described above, the present invention can provide a sludge scraping device that can more reliably travel.

[Brief description of the drawings]

FIG. 1 is a partially cutaway side view of a sludge scraping device showing an embodiment of the present invention.

FIG. 2 is an enlarged side view of the sludge scraping device.

FIG. 3 is a plan view of the sludge scraping device.

FIG. 4 is a front view of the sludge scraping device.

FIG. 5 is an operation explanatory view of an upper portion of the clutch interlocking mechanism.

FIG. 6 is an operation explanatory diagram of a lower portion of the clutch interlocking mechanism.

FIG. 7 is an operation explanatory view at the lower part of the clutch interlocking mechanism.

FIG. 8 is an operation explanatory diagram at a lower portion of the clutch interlocking mechanism.

FIG. 9 is an operation explanatory view at an upper portion of the clutch interlocking mechanism.

FIG. 10 is a sectional view showing another embodiment of the guide rail.

FIG. 11 is a sectional view showing another embodiment of the roller.

FIG. 12 is a sectional view showing another embodiment of the guide rail.

FIG. 13 is a sectional view showing another embodiment of the guide rail.

FIG. 14 is a sectional view showing another embodiment of the guide rail.

FIG. 15 is a sectional view showing another embodiment of the guide rail.

FIG. 16 is a side view showing an example of a treatment pond on which the guide rail is laid.

FIG. 17 is a schematic cross-sectional view showing the rail main body of FIG. 15 changed to a round shape.

FIG. 18 is a schematic sectional view showing a method of passing a wire or the like.

FIG. 19 is a schematic sectional view showing another method.

FIG. 20 is a plan view showing another embodiment of the sludge scraping device.

FIG. 21 is a side view of the same device.

FIG. 22 is a sectional view of the apparatus taken along line ZZ.

FIG. 23 is a side view showing another embodiment of the device.

FIG. 24 is a sectional view showing another configuration example of the connecting member of the embodiment in FIG. 23;

FIG. 25 is a side view of a non-scraping state showing another driving method.

FIG. 26 is a side view of the drive system in a scraped state.

FIG. 27 is a sectional view showing an example of installation of guide rails.

FIG. 28 is a sectional view showing another installation example of the guide rail.

FIG. 29 is a sectional view showing another installation example of the guide rail.

FIG. 30 is a sectional view showing another installation example of the guide rail.

FIG. 31 is a sectional view showing another installation example of the guide rail.

FIG. 32 is a side view showing another sludge scraping device.

FIG. 33 is a side view showing another sludge scraping device.

FIG. 34 is a side view showing another embodiment of FIG. 33.

FIG. 35 is a side view showing an example of the arrangement of scrapers.

FIG. 36 is a side view showing another arrangement example of the scraper.

FIG. 37 is a side view showing another arrangement example of the scraper.

FIG. 38 is a side view showing another example of the arrangement of the scraper.

FIG. 39 is a perspective view showing another sludge scraping device.

FIG. 40 is a side view showing another sludge scraping device.

FIG. 41 is a plan view of FIG. 40;

FIG. 42 is a side view showing another sludge scraping device.

FIG. 43 is a plan view of the embodiment of FIG. 42;

FIG. 44 is a side view showing another sludge scraping device.

FIG. 45 is a side view showing another sludge scraping device.

FIG. 46 is a side view showing another sludge scraping device.

FIG. 47 is a front view of the sludge scraping device of FIG. 46.

FIG. 48 is a side view showing another sludge scraping device.

FIG. 49 is a perspective view of a frame with a fixed shaft of the device.

FIG. 50 is a plan view showing another sludge scraping device.

FIG. 51 is a side view of the same device.

FIG. 52 is a front view of the same device.

FIG. 53 is a side view showing another sludge scraping device in a scraped state.

FIG. 54 is a side view showing the non-scraping state of the device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Processing pond 4 ... Pit 8 ... Guide rail 22 ... Body 29 ... Running wheel 42 ... Main scraper 43 ... Sub-scraper 49 ... Balancer 53 ... Rotation drive device 54 ... Wheel 56 ... Track line 63 ... Clutch interlocking mechanism.

Claims (4)

[Claims] 1. An airframe that reciprocates parallel to the bottom of a treatment pond such as a sedimentation basin, a rotary drive mounted on the airframe and reciprocally rotated, and mounted on the airframe and rotated in conjunction with the rotary drive. A wheel that is stretched along the traveling direction of the body and is wound around the middle of the track and enables the body to travel, and a wheel that is provided to be able to move up and down on the body and descends While the scraper is in a scraping state and is in a returning state by ascending, the scraper is in a returning state by rotation of the rotary drive device in one direction, and the scraper is in conjunction with a returning state by rotation in the other direction. A sludge scraping device comprising: a clutch interlocking mechanism for disengaging power transmission to the scraper after the scraper has obtained the respective states of scraping and returning. 2. The sludge scraping device according to claim 1, wherein the scrapers are disposed before and after the fuselage, the front scraper is a main scraper, and the rear scraper is a sub-scraper. 3. The scraper according to claim 1, wherein the scraper is supported so as to rotate about a horizontal axis, and further includes a balancer having a point where the rotational moment is switched between positive and negative when passing above the horizontal axis. Sludge scraper. 4. A sludge scraper according to any one of claims 1 to 3, wherein a single track type guide rail is laid on the bottom surface of the treatment tank, and the body reciprocates using the guide rail as a track. Bye device.