CN201972143U

CN201972143U - Mechanical force-increasing contamination cleaning scraper bucket

Info

Publication number: CN201972143U
Application number: CN2011200585040U
Authority: CN
Inventors: 王秋江
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-03-08
Filing date: 2011-03-08
Publication date: 2011-09-14
Anticipated expiration: 2021-03-08

Abstract

The utility model discloses a mechanical force-increasing contamination cleaning scraper bucket, which belongs to contamination cleaning mechanical equipment in hydropower stations, thermal power stations and nuclear power stations. The mechanical force-increasing contamination cleaning scraper bucket comprises a scraper bucket frame and a rotary harrow, wherein a force applying device is arranged on the rotary harrow and comprises a primary force applying device and a secondary force applying device; the secondary force applying device comprises a connecting bar I hinged with the scraper bucket; the connecting bar I is hinged with a connecting bar II by a coupling shaft; the connecting bar II is hinged with the rotary harrow; and a lifting lug on the coupling shaft is connected with a bucket opening and closing steel wire rope. In the utility model, the secondary force applying device applies the force by using a steel wire rope to draw a four-connecting-bar mechanism. In the primary force applying device, the lifting force is increased through changing the force arm by using pulley radius. The totally applied force is equal to the product of the primarily applied force and the secondarily applied force, so that the bucket closing force of the scraper bucket is largely increased and substantially close to a contamination scraping force of the scraper bucket, so as to assure the contamination cleaning effect. In addition, compared with the prior art, the connected steel wire ropes in the utility model cannot be damaged.

Description

The mechanical booster type slusher of removing contamination

Technical field

The utility model belongs to power station, thermal power station, the nuclear power station plant equipment of removing contamination, and is specifically related to a kind of machinery slusher of removing contamination.

Background technology

The effect of mechanical type slusher is in the river that flows dirt to be put in the slusher.Its effect of removing contamination is mainly by the decision of two power: the dirt-inserting force of slusher and close bucket power, perfect condition is that two power equate.The dirt-inserting force of slusher is carried out by the rake teeth on the slusher framework by the deadweight decision of slusher, and its size equals the slusher deadweight.Close bucket power by the deadweight decision of changeing rake, carried out by the rake teeth that changes on the rake, its size equals to change the deadweight of rake.Approximate 20% of slusher deadweight owing to change the deadweight of rake, so, close bucket power and be far smaller than dirt-inserting force.Following two kinds of results that will produce like this: 1. change rake and can not grab dirt.2. change the dirt that rake is got hold of, in the process of hoisting, also can fall down.Therefore, people adopt hydraulic jack to carry out reinforcement to changeing rake, be " 02255752.0 " at application number, be called as described in the utility model patent of " force booster type remove contamination mechanical-hydraulic slusher " as the applicant.Though the problem of reinforcement when having solved with the method for hydraulic pressure that the trash rake slusher closes bucket, this is also defectiveness in use: the one, and the cost height, the 2nd, need use the dynamic Control cable.In the deep water that flows, cable is very easily thrust by flowing water or dirt, causes equipment fault, can not normally use, and promptly uses the dynamic Control cable of band steel core to escape by luck, and becomes for many years insoluble chronic disease of water power industry.

The utility model content

The technical problems to be solved in the utility model is the cost height of hydraulic pressure slusher, in deep water operation fragile, a kind of mechanical booster type slusher of removing contamination is provided, can reduce the cost of slusher, the security reliability of raising equipment operation, guarantee the effect of removing contamination in deep water.

The technical solution of the utility model realizes in the following manner: a kind of mechanical booster type slusher of removing contamination, comprise the slusher frame and change rake, change rake and be provided with augmentor, augmentor comprises one-level augmentor and secondary augmentor, described secondary augmentor comprises the connecting rod I that is hinged and connected with the slusher frame, connecting rod I is hinged and connected by coupking shaft and connecting rod II, and connecting rod II is hinged and connected with changeing rake, and the hanger on the coupking shaft links to each other with switching bucket wire rope.

Described one-level augmentor comprises hoist rope, hoist rope is through on the hinging supporting shaft that hoists by hanger, the hinging supporting shaft that hoists is located to be changeed on the commentaries on classics of the rake upper end rake arm of force, the commentaries on classics rake arm of force, commentaries on classics rake, pulley are welded on the axle sleeve, the length of changeing the rake arm of force is greater than the pulley radius, axle sleeve is hinged on the slusher frame by hinging supporting shaft, and the wire rope that press-fits on the pulley links to each other with hanger on the coupking shaft.

Described connecting rod I and connecting rod II are isometric.

The utility model comprises the two-stage step-up system, and wherein the secondary step-up system is the device of simulation excavator-type shovel clamshell excavator, by the wire rope pulling quadric chain reinforcement that press-fits on the pulley.The one-level step-up system is to change the arm of force and then increased lifting force by the pulley radius.The size of reinforcement altogether equals the one-level reinforcement and the secondary reinforcement is long-pending, and the bucket power of closing of slusher is increased greatly, near the dirt-inserting force of slusher, has guaranteed the effect of removing contamination substantially.In addition, compared with prior art, the utility model does not comprise hydraulic cylinder, cable, and when reducing production costs, each wire rope that links to each other can not damage in water yet.

Description of drawings

Fig. 1 is the bucket-shaped attitude schematic diagram of opening of the present utility model.

Fig. 2 is the bucket-shaped attitude schematic diagram that closes of the present utility model.

Fig. 3 is an one-level step-up system in the utility model.

Fig. 4 is that schematic diagram is looked on the left side of Fig. 1.

Fig. 5 is the utility model reinforcement principle schematic diagram.

Fig. 6 is that master of the present utility model looks schematic diagram.

The specific embodiment

As shown in drawings, the utility model comprises slusher frame 9 and changes rake 7, change rake 7 and be provided with augmentor, augmentor comprises one-level augmentor and secondary augmentor, described secondary augmentor comprises the connecting rod I 10 that is hinged and connected with slusher frame 9, connecting rod I 10 is hinged and connected with connecting rod II 11 by coupking shaft 13, and connecting rod II 11 is hinged and connected with changeing rake 7, and the hanger on the coupking shaft 13 links to each other with switching bucket wire rope 14.

Described one-level augmentor comprises hoist rope 12, hoist rope 12 is through on the hinging supporting shaft 3 that hoists by hanger 2, the hinging supporting shaft 3 that hoists is located to be changeed on the commentaries on classics of the rake 7 upper ends rake arm of force 4, the commentaries on classics rake arm of force 4, commentaries on classics rake 7, pulley 1 are welded on the axle sleeve 5, the length of changeing the rake arm of force 4 is greater than pulley 1 radius, axle sleeve 5 is hinged on the slusher frame 9 by hinging supporting shaft 6, and the wire rope 15 that press-fits on the pulley 1 links to each other with hanger on the coupking shaft 13.

Described connecting rod I 10 is isometric with connecting rod II 11.Coupking shaft 13 two ends are symmetrical arranged wire rope 15, connecting rod I 10 and connecting rod II 11.

As shown in Figure 5, secondary step-up system operating principle is as follows in the utility model: the point that connecting rod I 10 links to each other with slusher frame 9 is fulcrum B, connecting rod I 10 and connecting rod II 11 hinged places are fulcrum A, it is fulcrum D that 7 hinged points are harrowed in connecting rod II 11 and commentaries on classics, the fulcrum C that changes on the rake 7 is the 4th fulcrum, and A, B, four points of C, D are four point, wherein AB=AD of quadric chain, BC=CD, and AB＞BC.When slusher closes bucket, wire rope pulling coupling spindle 13 on the pulley 1, ∠ BAD changes from small to big in the quadric chain, and distance is shortened by long between AC, loaded changeing rake 7 simultaneously by connecting rod I 10 and connecting rod II 11, this is to produce the secondary reinforcement by one-level reinforcement pulling quadric chain.

When the utility model descends at slusher, open and close bucket wire rope 14 and upwards draw coupling spindle 13 to extreme position, coupling spindle 13 Tong Walk upwards draw connecting rod I 10 and connecting rod II 11.At this moment, connecting rod II 11 hauls commentaries on classics rake 7 and rotates up, and changes rake and opens.At this moment, the distance of quadric chain diagonal AC is the longest.When slusher rose, hoist rope 12 upwards promoted, and opened and closed the wire rope 14 that struggles against and loosened simultaneously, and hoist rope 12 is pulling axle 3 upwards, drove the commentaries on classics rake arm of force 4 and rotated up, and changeed the rake arm of force 4 and pulley 1 and was welded on the same axle sleeve 5, pulley 1 also Tong Walk rotation.Hoist rope 12 is the E point with the point that the commentaries on classics rake arm of force 4 links to each other, and at this moment, establishes arm of force ED=h1, and F1 is the slusher deadweight, pulley 1 radius=h2, and the power that pulley obtains is F2, so, h1 * F1=h2 * F2.Because h1＞h2, so, F2＞F1, and F2 is exactly the one-level reinforcement that pulley obtains.

As shown in Figure 6, this device is for being symmetrically arranged, and the axle sleeve I 8 on the coupking shaft 13 is used for regulating hoist rope and opens and closes the distance that struggles against between the wire rope between the hanger of connecting rod and switching bucket wire rope.

The utility model efficiently solves mechanical slusher dirt-inserting force and closes bucket power and differs a too big difficult problem, has guaranteed the effect of removing contamination, and has guaranteed the equipment reliability of operation.

The utility model is particularly suitable for being applied in the moving water of intake of hydropower station and removes contamination, especially in deep water, big flow velocity, big lift situation following time, owing to only use wire rope, power requirement cable not, so, when effect is removed contamination in assurance, also improved the security reliability of equipment operation greatly, solved the easily broken disadvantage of hydraulic system power cable.

Claims

1. mechanical booster type slusher of removing contamination, comprise slusher frame (9) and change rake (7), change rake (7) and be provided with augmentor, it is characterized in that: augmentor comprises one-level augmentor and secondary augmentor, described secondary augmentor comprises the connecting rod I(10 that is hinged and connected with slusher frame (9)), connecting rod I(10) by coupking shaft (13) and connecting rod II(11) be hinged and connected, connecting rod II(11) be hinged and connected with changeing rake (7), the hanger on the coupking shaft (13) links to each other with switching bucket wire rope (14).

2. the mechanical booster type according to claim 1 slusher of removing contamination, it is characterized in that: described one-level augmentor comprises hoist rope (12), hoist rope (12) is through on the hinging supporting shaft that hoists (3) by hanger (2), the hinging supporting shaft (3) that hoists is located on the commentaries on classics rake arm of force (4) that changes rake (7) upper end, change the rake arm of force (4), change rake (7), pulley (1) is welded on the axle sleeve (5), the length of changeing the rake arm of force (4) is greater than pulley (1) radius, axle sleeve (5) is hinged on the slusher frame (9) by hinging supporting shaft (6), and the wire rope (15) that press-fits on the pulley (1) links to each other with hanger on the coupking shaft (13).

3. the mechanical booster type according to claim 1 and 2 slusher of removing contamination is characterized in that: described connecting rod I(10) with connecting rod II(11) isometric.