CN2289828Y

CN2289828Y - Dirt removing machine for dirt screen

Info

Publication number: CN2289828Y
Application number: CN 96208102
Authority: CN
Inventors: 倪国明; 王继忠; 赵杰; 曹淑琴
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-03-25
Filing date: 1996-03-25
Publication date: 1998-09-02
Anticipated expiration: 2006-03-25

Abstract

The utility model discloses a dirt removing machine for a dirt screen, comprising a frame and a tooth harrow, wherein, the upper part of the frame is provided with a motor and a driving device, the motor drives the tooth harrow to move upwards along screen strips through the driving device, the top of the back face of the dirt screen is provided with a rotary harrow, harrow teeth pass through the dirt screen, the rotary harrow is driven to rotate by the driving device, and a conveyor is arranged under the rotary harrow and is used for conveying firewood selected from the tooth harrow by the rotary harrow. The dirt removing machine of the structure can replace manpower to automatically accomplish the dirt removing work of the dirt screen so as to relieve people's hard work, being suitable for screening and removing dirt for each large, medium and small-size hydraulic power station and water delivery channels.

Description

The trashrack trash rake

The utility model relates to a kind of power station trashrack sewage disposal apparatus.

Trashrack is one of power station visual plant, its effect be will enter weeds, branch and dirt retaining in the hydraulic turbine current outside turbine chamber, make totally stably that current enter the hydraulic turbine smoothly, promote hydraulic turbine running.These weeds dirts that blocked by trashrack, must in time salvage cleaning, otherwise before will getting lodged in grid, current can't pass through, and influence the unit running, traditional Refloatation method be by artificial with creeper along a upwards rake one salvaging of raking the soil level of grizzly bar, labour intensity is very big, and especially to flood season, korneforos faggot dirt is more, the several people around the clock salvages also of no avail, and generating is greatly affected.So far also do not have a kind of gratifying, can replace the artificial automatic pollutant removal equipment of salvaging.

The purpose of this utility model is exactly will provide a kind of can replace the artificial trashrack automatic pollutant removal device of salvaging dirt.

The purpose of this utility model is achieved in that the trashrack trash rake comprises framework and tooth harrow, and before framework placed trashrack, rake teeth put in the trashrack, at framework upper motor and transmission device was housed, and motor drives the tooth harrow motion by transmission device; Rotary harrow is equipped with at top at the trashrack back side, and rake teeth passes grizzly bar, and rotary harrow below rotary harrow, has a conveying device by the transmission device driven rotary, carries rotary harrow to choose the faggot that falls from tooth harrow.

The motion mode of tooth harrow has two kinds, a kind of is rotary, on the framework both sides one sprocket wheel is housed respectively up and down, the chain of tightening respectively is housed on the sprocket wheel on both sides, tooth harrow is fixed on the chain, rotate with chain, motor is by worm and gear drive sprocket main shaft, and rotary harrow is by the sprocket spindle driven rotary.

Another kind is reciprocating type, a coaster is housed on framework, motor drives rope drum by worm and gear, extension pulley moves up and down, on the foundation slab of coaster both sides pulley is housed, places in the slide rail on framework both sides, coaster crossbeam both sides are with bearing, bearing is contained on the foundation slab, and tooth harrow is fixed on the coaster crossbeam.One stopping means is arranged on the coaster foundation slab, and the control tooth harrow is mentioned when rising, and rake teeth puts in trashrack, changes during decline, and rake teeth leaves trashrack, and rotary harrow is by rope drum main shaft driven rotary.

The trashrack trash rake that adopts technique scheme to make, simple in structure, be convenient to install, reliable, can replace artificial automatic pollutant removal, removed people's heavy work, can improve the operational efficiency in power station.Go up fast trash rake and be not only applicable to each large, medium and small power station, and be applicable to the dirt-blocking dirt-cleaning of each canal for water conveyance, range of application is extremely wide.

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is the front view of rotary trashrack trash rake grizzly bar forward part.

Fig. 2 is the lateral view of rotary trashrack trash rake.

Fig. 3 is the front view of reciprocating type trashrack trash rake grizzly bar forward part.

Fig. 4 is the lateral view of reciprocating type trashrack trash rake.

Fig. 5 is reciprocating type trashrack trash rake upper arresting pin schematic diagram.

At Fig. 1, among Fig. 2, framework 5 is made by channel-section steel, before placing trashrack 11, size determines that according to the size of trashrack in the framework both sides two sprocket wheels are housed respectively, chain 7 is tightened on the sprocket wheel, upper sprocket wheel 6 is a driving wheel, lower sprocket 10 is a driven pulley, and two groups of tooth harrows 8 are housed on the chain, 9, rake teeth puts in interior 3-5 centimetre of trashrack, sprocket spindle 4 is driven by Worm and worm-wheel gearing 2 by motor 1, a rotary harrow 12 is equipped with at top at trashrack 11 back sides, is driven by the V-belt by three horn rings 3 on the sprocket spindle to turn clockwise, the rake teeth of rotary harrow passes grizzly bar, cooperate with tooth harrow, tooth harrow when grizzly bar rises near the top when the chain band, rotary harrow 12 is provoked the faggot on the tooth harrow 8, below rotary harrow, one dolly 13 is arranged, and the faggot that rotary harrow is provoked falls in the following dolly, and little vehicle-mounted full pusher is walked.Faggot on the rotary harrow does not fall in the car fully, is scraped and is fallen in the car by grizzly bar.

At Fig. 3, Fig. 4, among Fig. 5, before framework 19 places trashrack 27, framework is made by channel-section steel, notch inwards, in have two round steel to do pulley rail 21, on the coaster both sides foundation slab 22 pulley 23 is housed, place in the slide rail 21, bearing 26 is equipped with on coaster crossbeam 24 both sides, this bearing is contained on the foundation slab 22, tooth harrow 25 is fixed on the crossbeam, can rotate automatically, motor 14 drives rope drum main shaft 18 by Worm and worm-wheel gearing 15, rope drum 17 moves up and down by steel cable 20 extension pulleys, upper arresting pin 29 and lower position block 30 are arranged on the coaster foundation slab 22, and upper arresting pin 29 is a wedge shape, and spring 33 is arranged thereafter, pull bar 34 and depression bar 35, scotch 36 on one is arranged at the top of framework 19, when coaster rose, upper arresting pin blocked tooth harrow, made it vertical with grizzly bar, rake teeth puts in the trashrack, when rising near the top, last scotch 36 moulded rods 35 make pull bar 34 drive upper arresting pin 29 withdrawals, tooth harrow 25 repeatedly drops down onto lower position block 30 positions, rake teeth leaves grizzly bar, and simultaneously, electrical installations control motor 14 drives coaster and falls, in base of frame scotch 31 is once arranged, when coaster fell near the bottom, following scotch 31 blocked tooth harrow, and coaster continues to move down, tooth harrow 25 rotates up relatively, after slipping over upper arresting pin, spacer pin blocks tooth harrow, makes it perpendicular to trashrack 27, rake teeth puts in the grizzly bar, simultaneously, electrical installations control driven by motor coaster begins to rise, the faggot on the tooth harrow cleaning grizzly bar.Rotary harrow 28 is arranged at the top, the back side of trashrack 27, turn clockwise by the V-belt drive by three horn rings 16 on the rope drum main shaft, rake teeth passes grizzly bar, cooperate with tooth harrow, one dolly 32 is arranged below rotary harrow, when tooth harrow was hung faggot and risen to the top, rotary harrow 28 was provoked the faggot on the tooth harrow, sends in the following dolly.For big hydroelectric power plant, machine is organized a performance several more, can adorn a light-duty conveyer belt at the back side of trashrack, rotary harrow is chosen the faggot that falls deliver to the appointed place automatically.

Claims

1, a kind of trashrack trash rake, comprise framework and tooth harrow, before framework places trashrack, rake teeth puts in the trashrack, it is characterized in that: a upper and lower sprocket wheel (6), (10) of respectively being equipped with on framework (5) both sides, the chain of tightening (7) respectively is housed on the sprocket wheel on both sides, tooth harrow (8) is fixed on the chain, rotatablely move with chain, motor (1) is contained in framework upper by Worm and worm-wheel gearing (2) drive sprocket main shaft (4); At trashrack (11) top, the back side, rotary harrow (12) is housed, rake teeth passes trashrack, and rotary harrow below rotary harrow, has a conveying device (13) by the sprocket spindle driven rotary, carries rotary harrow (12) to choose the faggot that falls from tooth harrow.