CN210797443U

CN210797443U - Device for cleaning trash rack hole

Info

Publication number: CN210797443U
Application number: CN201921519453.XU
Authority: CN
Inventors: 邓仕路; 洪盛荣; 陈启春; 张惠明
Original assignee: Sichuan Orient Hydroelectric Equipment and Engineering Co Ltd
Current assignee: Sichuan Orient Hydroelectric Equipment and Engineering Co Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-06-19
Anticipated expiration: 2029-09-12

Abstract

A device for cleaning trash rack holes comprises a balance beam, wherein a lifting device which moves horizontally is arranged on the balance beam, a material clamping device which moves up and down is connected below the lifting device, the material clamping device comprises a movable clamping device and a rotary clamping device, the movable clamping device is close to or far away from the rotary clamping device after clamping the blockage, the rotary clamping device picks up and pulls the blockage clamped by the movable clamping device, the plug in the grid hole is pulled out by the clamp A, the clamp B clamps the pulled plug and rotates 90 degrees, the plug is completely separated from the grid hole along with the rotation, the clamp A approaches the grid hole to pull out the rest plug, under generating set normal operating condition, realized the effect of the downthehole plug of automatic clearance bars, avoided the manual work to clear up the loss that needs shut down and bring, solved the trash rack by the difficult problem of jam such as branch trunk.

Description

Device for cleaning trash rack hole

Technical Field

The utility model belongs to the technical field of hydraulic equipment clearance, especially, relate to a device for clearing up trash rack hole.

Background

In hydraulic and hydroelectric engineering, in particular in hydropower stations, the trash rack serves as a first barrier for the water inlet of a generator set, and the trash rack has the functions of mainly intercepting floating dirt in water and preventing blockage from flowing into the generator set through the water inlet. In the annual flood season, a large amount of blockages are accumulated in front of a trash rack at a water inlet, if the blockages of inflow hole blockages among trash rack leaves are too much, especially the blockages of tree branches and trunks, the pressure difference between the front and the rear of the trash rack is too large, the inflow rate of a generator set is influenced, the trash rack is even damaged, and major accidents are caused once the trash rack is damaged.

The patent number is CN201120042870.7, the application date is 2011-02-21, and discloses a multifunctional trash rack trash cleaning machine, which comprises a portal frame, a grab bucket device, a trash collecting device, an overhaul portal crane and a control device, wherein a slide way is fixedly arranged between the grab bucket device and the portal frame, the grab bucket device comprises a hoisting mechanism for controlling the hoisting motion of the grab bucket device and a grab bucket bracket for fixing a grab bucket, the hoisting mechanism is movably connected with the slide way, and the grab bucket bracket is also fixedly provided with a grab bucket driving device for driving the grab bucket to move; the sewage collecting device is a sewage collecting trolley which can be assembled and disassembled with the door frame; by using a grab bucket device and a slideway.

Above-mentioned patent is through the type clear up the rubbish on the trash rack through adopting the grab bucket device to can realize the integrative completion of trash cleaning and the continuity of unloading with grab bucket automatic movement to the position of unloading at the dirty dolly place of collection through a slide, do not influence the normal operating of hydraulic turbine or pump station. However, the problem of blocking of branches and trunks between grid holes on the trash rack cannot be solved by the trash removal grab bucket, and two methods are usually adopted, namely when the trash rack is excessively plugged, a generator set is stopped, the trash rack is lifted out of an orifice, and the plugs of the grid holes are manually removed; the other method is that every trash rack is lifted out of an orifice in a fixed maintenance period every year, then the trash rack is manually removed, and by adopting the two modes, small economic loss is caused when the hydropower station is stopped and cleaned, and the plugs such as branches and trunks clamped by the grid holes are difficult to pull out.

SUMMERY OF THE UTILITY MODEL

The utility model discloses an overcome above-mentioned prior art's defect, the utility model provides a device for clearing up trash rack hole can be under generating set normal operating condition, the automatic clearance of plug that will block the grid hole.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

The utility model provides a trash rack plug pulls out material device, includes the compensating beam, be provided with horizontal migration's hoisting device on the compensating beam, the hoisting device below is connected with the double-layered material device that reciprocates, press from both sides the material device including removing clamping device and gyration clamping device, remove clamping device centre gripping plug back and be close to or keep away from gyration clamping device, gyration clamping device picks up the plug that removes the clamping device centre gripping and pulls out the material, the upper end of compensating beam still sets up two lugs, the lug is close to the both ends of compensating beam respectively.

The lifting device comprises a sliding plate, I-steel, a motor B and pulleys, wherein the upper end of the sliding plate is provided with a rolling roller along the length direction of the I-steel, the lower end of the sliding plate is provided with the motor A, at least two winding drums are fixed on a rotating shaft of the motor A, the upper end of a steel wire rope is wound on the winding drums, the lower end of the steel wire rope is connected with a clamping device, the motor B is fixed on the balance beam, the pulleys are at least four, the pulleys are evenly distributed at the upper end and the lower end of the balance beam, the two ends of the sliding plate are connected with pull ropes, and the pull ropes are wound on.

The rolling shaft is at least two, and relative setting block is on the I-steel, the rolling shaft passes through the bearing to be fixed on the slide.

Press from both sides the material device and include the counter weight, wire rope is connected to the counter weight upper end, and the lower extreme is fixed with track and gyration hydro-cylinder, it includes along track length direction reciprocating motion's slider to remove clamping device, the lower extreme of slider is provided with connecting plate A, connecting plate A's lower extreme is provided with clamp A and makes clamp A open or closed hydro-cylinder A, still be connected with the one end of pneumatic cylinder on the connecting plate A, the other end of pneumatic cylinder is close to gyration hydro-cylinder, and fixes on the counter weight, and is close to, gyration clamping device is including the connecting plate B of fixed gyration hydro-cylinder lower extreme the lower extreme of connecting plate B is provided with clamp B and makes clamp B open or closed hydro-cylinder B.

Clamp A and clamp B include that two set up the rack board relatively, the rack board upper end on the clamp A is passed through the bearing and is connected on connecting plate A, lower extreme outer wall connection hydro-cylinder A's one end, hydro-cylinder A's the other end is fixed on connecting plate A, the rack board upper end on the clamp B is passed through the bearing and is connected on connecting plate B, lower extreme outer wall connection hydro-cylinder B's one end, hydro-cylinder B's the other end is fixed on connecting plate B.

At least two rollers are arranged on the side wall of the counterweight.

The lower extreme of counter weight still is connected with the support, be provided with waterproof camera on the support, waterproof camera is parallel with the bottom of clamp A.

Adopt the utility model has the advantages of.

1. The plug in the grid hole is pulled out through the clamp A, the clamp B clamps and rotates 90 degrees at the plug which is pulled out, the plug is completely separated from the grid hole along with the rotation, the clamp A is close to the grid hole to pull out the rest plug, and under the normal operation state of the generator set, the effect of automatically cleaning the plug in the grid hole is realized, the loss caused by shutdown in manual cleaning is avoided, and the problem that the trash rack is blocked by branches and trunks is solved.

2. The pull rope rotates around the motor B to drive the sliding plate to move left and right on the I-shaped steel, so that the positions of the material clamping device and the trash rack can be conveniently adjusted, and the clamp A can clamp the blockage in the grid hole at a proper position.

3. The rolling shaft replaces sliding friction with low resistance through low rolling friction, and the rolling shaft has the advantages of low friction resistance, low power consumption, high mechanical efficiency and easiness in starting.

4. The clamp is driven to open and close by the oil cylinder, the structure is simple, the output force is large, the clamp can be used as a high-power element, the working efficiency is high, the performance is stable and reliable, the working temperature range can reach-60 to 200 ℃, and no fault occurs after the clamp is operated for 6000 hours due to the ultra-long service life.

5. The clamp is buckled into a rack shape through the clamp, so that the friction force is increased, and the blockage is convenient to pull.

6. The counterweight and the trash rack are prevented from being damaged by friction through the roller.

7. The camera is convenient for observing underwater conditions, so that the worker can adjust the positions of the material clamping device and the grid hole more easily.

Drawings

The invention will be described in further detail with reference to the drawings and the following detailed description, in which reference is made to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram at I in fig. 1.

Fig. 3 is a schematic view of the structure in the direction of a in fig. 1.

Fig. 4 is a schematic structural view of the swivel cylinder in fig. 3 after rotating 90 °.

Fig. 5 is a sectional view taken along line B-B of fig. 1.

Fig. 6 is a front structural sectional view of the trash rack.

Fig. 7 is a side sectional view of the trash rack.

The labels in the figure are: 1. balance beam, 2, lifting device, 3, material clamping device, 4, moving clamping device, 5, rotating clamping device, 6, support, 7, waterproof camera, 8, lifting lug, 9, trash rack, 10, grid hole, 21, sliding plate, 22, I-steel, 23, roller, 24, motor A, 25, winding drum, 26, steel wire rope, 27, pulling rope, 28, motor B, 29, pulley, 31, balance weight, 32, roller, 33, rail, 34, rotating oil cylinder, 41, sliding block, 42, connecting plate A, 43, clamp A, 44, oil cylinder A, 45, hydraulic cylinder, 51, connecting plate B, 52, clamp B, 53 and oil cylinder B.

Detailed Description

Example 1

As shown in fig. 1 to 7, a device for cleaning trash rack holes comprises a balance beam 1, wherein a lifting device 2 which moves horizontally is arranged on the balance beam 1, a material clamping device 3 which moves up and down is connected below the lifting device 2, the material clamping device 3 comprises a movable clamping device 4 and a rotary clamping device 5, the movable clamping device 4 is close to or far away from the rotary clamping device 5 after clamping a blockage, the rotary clamping device 5 picks up and pulls out the blockage clamped by the movable clamping device 4, two lifting lugs 8 are further arranged at the upper end of the balance beam 1, and the lifting lugs 8 are respectively close to two ends of the balance beam 1.

The plug in the grid hole 10 is pulled out through the clamp A43, the clamp B52 clamps and rotates the pulled plug by 90 degrees, the plug is completely separated from the grid hole 10 along with rotation, the clamp A43 is close to the grid hole 10 to pull out the rest plug, under the normal operation state of the generator set, the effect of automatically cleaning the plug in the grid hole 10 is achieved, the loss caused by shutdown of manual cleaning is avoided, and the problem that the trash rack 9 is blocked by branches and trunks is solved.

Example 2

Lifting device 2 includes slide 21, I-steel 22, motor B28 and pulley 29, slide 21's upper end is provided with along the rolling roller 23 of I-steel 22 length direction, and the lower extreme is provided with motor A24, be fixed with two at least reels 25 on motor A24's the rotation axis, the winding has wire rope 26's upper end on the reel 25, pressing from both sides material device 3 is connected to wire rope 26's lower extreme, motor B28 fixes at compensating beam 1, pulley 29 is four at least, and evenly distributed is at compensating beam 1's upper end and lower extreme, slide 21's both ends are connected with stay cord 27, and stay cord 27 removes along pulley 29 and twines on motor B28's rotation axis.

The number of the rolling shafts 23 is at least two, the rolling shafts 23 are oppositely arranged and clamped on the I-shaped steel 22, and the rolling shafts 23 are fixed on the sliding plate 21 through bearings.

Press from both sides material device 3 including counter weight 31, wire rope 26 is connected to counter weight 31 upper end, and the lower extreme is fixed with track 33 and gyration hydro-cylinder 34, it includes along track 33 length direction reciprocating motion's slider 41 to remove clamping device 4, the lower extreme of slider 41 is provided with connecting plate A42, the lower extreme of connecting plate A42 is provided with clamp A43 and makes clamp A43 open or closed hydro-cylinder A44, still be connected with the one end of pneumatic cylinder 45 on connecting plate A42, the other end of pneumatic cylinder 45 is close to gyration hydro-cylinder 34, and fixes on counter weight 31, and is close to, gyration clamping device 5 is including the connecting plate B51 of fixed gyration hydro-cylinder 34 lower extreme the lower extreme of connecting plate B51 is provided with clamp B52 and makes clamp B52 open or closed hydro-cylinder B53.

Clamp A43 and clamp B52 include two relative rack boards that set up, the rack board upper end on the clamp A43 passes through the bearing and connects on connecting plate A42, and lower extreme outer wall connection hydro-cylinder A44's one end, hydro-cylinder A44's the other end is fixed on connecting plate A42, the rack board upper end on the clamp B52 passes through the bearing and connects on connecting plate B51, and lower extreme outer wall connection hydro-cylinder B53's one end, hydro-cylinder B53's the other end is fixed on connecting plate B51.

At least two rollers 32 are arranged on the side wall of the counterweight 31.

The lower extreme of counter weight 31 still is connected with support 6, be provided with waterproof camera 7 on the support 6, waterproof camera 7 is parallel with the bottom of clamp A43.

The pulling rope 27 rotates around the motor B28 to drive the sliding plate 21 to move left and right on the I-steel 22, so that the positions of the material clamping device 4 and the trash rack 9 can be conveniently adjusted, and the clamp A43 can clamp the blockage in the grid hole 10 at a proper position.

The rolling shaft 23 replaces sliding friction with low resistance by low rolling friction, so that the friction resistance is small, the power consumption is low, the mechanical efficiency is high, and the starting is easy.

The clamp is driven to open and close by the oil cylinder, the structure is simple, the output force is large, the clamp can be used as a high-power element, the working efficiency is high, the performance is stable and reliable, the working temperature range can reach-60 to 200 ℃, and no fault occurs after the clamp is operated for 6000 hours due to the ultra-long service life.

The clamp is buckled into a rack shape through the clamp, so that the friction force is increased, and the blockage is convenient to pull.

The counterweight 31 is prevented from being damaged by friction with the trash rack 9 by the drum 32.

The camera is convenient for observing underwater conditions, so that the worker can adjust the positions of the material clamping device and the grid hole more easily.

The method comprises the following steps:

A. when the blocking objects are blocked in the grid holes 10 on the trash rack 9, the balance beam 1 is adjusted to be above the grid holes 10 needing to be cleaned through the lifting lugs 8 by the crane;

B. the motor A24 rotates to release the steel wire rope 26 downwards, the counterweight 31 connected to the steel wire rope 26 and the material clamping device 3 sink, and the roller 32 on the counterweight 31 rolls downwards along the side wall of the trash rack 9;

C. observing the position of the blockage through the waterproof camera 7, and stopping the rotation of the motor A24 and the sinking of the clamping device 3 when the movable clamping device 4 corresponds to the position of the blockage in the grid hole 10;

D. starting a motor B28 to rotate, pulling the sliding plate 21 back and forth by the pull rope 27 around the pulley 29 to drive the rolling shaft 23 to roll on the upper end surface of the lower wing plate of the I-shaped steel 22 in a reciprocating manner, so that the material clamping device 3 is adjusted to move left and right until the movable clamping device 4 is close to the grid hole 10 in the horizontal direction, and stopping the rotation of a motor B28;

E. the oil cylinder A44 contracts to drive the clamp A43 to be opened, the hydraulic cylinder 45 extends to push the sliding block 41 to move leftwards along the track 33 until a blockage is in an opening formed after the clamp A43 is opened, and the hydraulic cylinder 45 stops extending;

F. the oil cylinder A44 extends to drive the clamp A43 to close and clamp the blockage, the hydraulic cylinder 45 contracts to pull the slider 41 to move rightwards along the track 33, the clamp A43 horizontally pulls the blockage out of the grid hole 10, and the hydraulic cylinder 45 stops contracting until the clamp A43 approaches the clamp B52;

G. in the step F, the oil cylinder B53 contracts to drive the clamp B52 to open, the rotary oil cylinder 34 drives the clamp B52 to rotate, the positions of the openings of the clamp B52 and the clamp A43 are kept, after the clamp A43 is close to the clamp B52 and stops moving, the end of a blockage clamped by the clamp A43 extends into the opening of the clamp B52, the oil cylinder B53 extends to drive the clamp B52 to close and clamp the blockage, the oil cylinder A44 contracts to drive the clamp A43 to open, the rotary oil cylinder 34 drives the clamp B52 to rotate 90 degrees, and the blockage in the grid hole 10 is pulled outwards;

H. when residual blocking objects remain in the grid holes 10, repeating the steps E to F;

I. the motor A24 rotates to contract the steel wire rope 26 upwards, the counterweight 31 connected to the steel wire rope 26 rises, the roller 32 on the counterweight 31 rolls upwards along the side wall of the trash rack 9, the blockage clamped on the clamp A43 and the clamp B53 rises to the water surface, the motor B28 is started to rotate, so that the material clamping device 3 moves above the collecting device, the clamp A43 and the clamp B53 are opened, and the blockage falls into the collecting device;

J. and repeating the steps B to I, cleaning the plug of the next grid hole 10, and after all the holes are cleaned, adjusting the balance beam 1 to the position above the next grid hole 10 needing to be cleaned by the crane through the lifting lug 8.

The waterproof camera 7 is of the type: an LH underwater high-definition camera is manufactured by the following manufacturers: beijing Atlantic Protocol technologies, Inc.

The motor A24 is hoist 5t3t2t1t elevator electric block lifting machine, and the manufacturer is: nanjing general electric machinery works.

The motor B28 is of the type: the PPF60-10 precision planetary reducer, 400W servo motor reduction gear, the producer is: yin Tong reducer Co.

The types of the rotary oil cylinder 34 are as follows: the P22-125 rotatable hydraulic cylinder is manufactured by the following manufacturers: jiangsu Hotan hydromechanical, Inc.

The types of the oil cylinder A44 and the oil cylinder B52 are as follows: the two-way lift MOB32/40/50/63 light-duty small-size hydro-cylinder of adjustable hydraulic cylinder pneumatic cylinder of two play axles, the manufacturer is: le Qing, Inc., West pneumatic Hydraulic company.

The hydraulic cylinder is characterized in that the hydraulic cylinder is of the following types: hydraulic light oil cylinder MOB50 × 100, the manufacturer is: hercules Hydraulic Equipment Ltd, Dongguan.

The above-mentioned embodiments only express the specific embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present application. It should be noted that, for those skilled in the art, without departing from the technical idea of the present application, several changes and modifications can be made, which are all within the protection scope of the present application.

Claims

1. A device for clearing trash rack holes comprises a balance beam (1) and is characterized in that: the lifting device (2) is arranged on the balance beam (1) and moves horizontally, the material clamping device (3) moving up and down is connected below the lifting device (2), the material clamping device (3) comprises a moving clamping device (4) and a rotary clamping device (5), the moving clamping device (4) is close to or far away from the rotary clamping device (5) after clamping a blockage, the rotary clamping device (5) picks up the blockage clamped by the moving clamping device (4) and extracts the material, two lifting lugs (8) are further arranged at the upper end of the balance beam (1), and the lifting lugs (8) are respectively close to two ends of the balance beam (1).

2. A device for cleaning trash rack apertures as defined in claim 1, wherein: hoisting device (2) are including slide (21), I-steel (22), motor B (28) and pulley (29), the upper end of slide (21) is provided with along rolling roller bearing (23) of I-steel (22) length direction, and the lower extreme is provided with motor A (24), be fixed with two at least reel (25) on the rotation axis of motor A (24), the winding has the upper end of wire rope (26) on reel (25), pressing from both sides material device (3) is connected to the lower extreme of wire rope (26), motor B (28) are fixed at compensating beam (1), pulley (29) are four at least, and evenly distributed is in the upper end and the lower extreme of compensating beam (1), the both ends of slide (21) are connected with stay cord (27), and stay cord (27) are followed pulley (29) and are removed the winding on the rotation axis of motor B (28).

3. A device for cleaning trash rack apertures as defined in claim 2, wherein: the number of the rolling shafts (23) is at least two, the rolling shafts are oppositely arranged and clamped on the I-shaped steel (22), and the rolling shafts (23) are fixed on the sliding plate (21) through bearings.

4. A device for cleaning trash rack apertures as defined in claim 2, wherein: press from both sides material device (3) including counter weight (31), wire rope (26) is connected to counter weight (31) upper end, and the lower extreme is fixed with track (33) and gyration hydro-cylinder (34), remove clamping device (4) including along track (33) length direction reciprocating motion's slider (41), the lower extreme of slider (41) is provided with connecting plate A (42), the lower extreme of connecting plate A (42) is provided with clamp A (43) and makes clamp A (43) open or closed hydro-cylinder A (44), still be connected with the one end of pneumatic cylinder (45) on connecting plate A (42), the other end of pneumatic cylinder (45) is close to gyration hydro-cylinder (34), and fixes on counter weight (31), and is close to, gyration clamping device (5) are including connecting plate B (51) of fixed gyration hydro-cylinder (34) lower extreme be provided with clamp B (52) the lower extreme of connecting plate B (51), And a cylinder B (53) for opening or closing the clamp B (52).

5. An apparatus for cleaning trash rack apertures as defined in claim 4 wherein: clamp A (43) and clamp B (52) include that two set up the rack board relatively, the rack board upper end on clamp A (43) passes through the bearing and connects on connecting plate A (42), and the one end of lower extreme outer wall connection hydro-cylinder A (44), the other end of hydro-cylinder A (44) is fixed on connecting plate A (42), the rack board upper end on clamp B (52) passes through the bearing and connects on connecting plate B (51), the one end of lower extreme outer wall connection hydro-cylinder B (53), the other end of hydro-cylinder B (53) is fixed on connecting plate B (51).

6. An apparatus for cleaning trash rack apertures as defined in claim 4 wherein: at least two rollers (32) are arranged on the side wall of the counterweight (31).

7. An apparatus for cleaning trash rack apertures as defined in claim 4 wherein: the lower extreme of counter weight (31) still is connected with support (6), be provided with waterproof camera (7) on support (6), waterproof camera (7) are parallel with the bottom of clamp A (43).