CN202543998U

CN202543998U - Full open type hydraulic grab

Info

Publication number: CN202543998U
Application number: CN2012201085465U
Authority: CN
Inventors: 张建
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-21
Filing date: 2012-03-21
Publication date: 2012-11-21
Anticipated expiration: 2022-03-21

Abstract

The utility model relates to a full open type hydraulic grab which comprises a rear straight tooth, a front bent tooth, a first hydraulic oil cylinder, a second hydraulic oil cylinder, a center derrick boom and a barycenter adjustment device, wherein the tail end of the rear straight tooth and the tail end of the front bent tooth are respectively hinged at two ends of the barycenter adjustment device, one end of the first hydraulic oil cylinder and one end of the second hydraulic oil cylinder are respectively hinged with the tail end of the rear straight tooth, the other end of the first hydraulic oil cylinder is hinged at one end of the barycenter adjustment device, the end of the barycenter adjustment device is connected with the front bent tooth, the other end of the second hydraulic oil cylinder is hinged at the outer side of the tail end of the front bent tooth, the upper end of the center derrick boom is connected under a lifting and hoisting device in a hanging mode, the lower end of the center derrick boom is hinged at the tail end of the rear straight tooth, the center derrick boom enables the rear straight tooth to be in a vertical state by means of limiting of the barycenter adjustment device, a grabbing fixture can be opened fully to a straight angle of 180 degrees, and a grab straight tooth is in a state of being perpendicular to the horizontal plane all the time. The full open type hydraulic grab has the advantages of being reliable in operation, reliable, high in sewage disposal efficiency and the like, and is suitable for various gratings and complex water flow inlets and outlets.

Description

A kind of full open type hydraulic grab

Technical field

The utility model relates to a kind of hydraulic grab trash rake, be that a kind of grappling fixture part can all be opened into 180 ° of straight angles specifically, and the grab bucket straight-tooth is the novel full open type hydraulic grab perpendicular to buoyance all the time.

Background technology

In the power station or municipal water supply and sewage work get the sluice gate that water inlet mostly is provided with the band grid, be used for tackling the foreign material and the dirt of water body, therefore must be equipped with the equipment of removing contamination grid is cleared up.The equipment of removing contamination that tradition is used is revolution trash rake or slusher formula trash rake, and both all have the equipment long period of soaking in water, is prone to take place corrosion and damage and fault under water; Functional performance is poor, and the life-span is short, for the floating thing of large-size; And the alveolar sphere plastics of the thick club on the grid, sphere, bulk, wooden unit, branch, tree root, bamboo branch etc. are difficult to remove; Can't clear up for large tracts of land pasture and water foreign material, the effect of removing contamination is relatively poor at all, and the scope of application is little.

The existing grab bucket trash rake that moves is 200920299799.3 disclosed a kind of hydraulic grab bucket type mud cleaners like the patent No., adopts the lifting grab bucket to rely on grid to descend; Rubbish on the grid is pushed into grid bottom downwards, and the forward and backward blade tooth of grabbing bucket is grabbed dirt and is closed up the back emersion water surface, moves to unload the forward and backward blade tooth of stain and open discharging; It is big and be wrapped in the foreign material on the grid effectively to remove size, does not have the permanent parts that soak, easy to maintenance; Its weak point is: the water velocity of trash rake use occasion is transferred in the process in grab bucket much larger than 1 meter per second, and grab bucket is lifted on the hinged position of the forward and backward blade tooth of grab bucket; Grab bucket gets in the water and receives water impact; Forward and backward blade tooth is prone to produce even upset around pin joint, and unbalance can't push away the foreign material on the grid effectively down; The grab bucket that forward and backward blade tooth is formed is the shape of opening that Open Side Down, runs into foreign material under water more for a long time, separately by the action of gravity of back hock on foreign material; Following thrust is not enough, and foreign material are piled up in the grab bucket opening, and descending being obstructed of grab bucket causes grab bucket to be overturn; Grab bucket can't be normally down to the grid bottom; The cable of lifting grab bucket or oil pipe can be rushed in to be blocked in the dirty grid, has hidden danger safe in utilization, and the efficient of removing contamination is low.

Summary of the invention

Receive water impact crank behind the water in order to solve in the prior art under the grab bucket trash rake, the deadweight that promotes foreign material on the grid is not enough, is prone to inclination flip; Use dangerous; The low deficiency that waits of the efficient of removing contamination, it is a kind of simple in structure that the utility model provides, stable and reliable operation; The efficient of removing contamination height, full open type hydraulic grab safe in utilization.

The technical scheme that the utility model adopts is: a kind of full open type hydraulic grab; Its technical characterstic is that said grab bucket comprises back straight-tooth, antecurvature tooth, first hydraulic jack, second hydraulic jack, center suspension rod and center of gravity adjusting device; The tail end of back straight-tooth and the tail end of antecurvature tooth are articulated in center of gravity adjusting device two ends respectively; The all hinged back of first hydraulic jack, one end and second hydraulic jack, one end straight-tooth tail end; The first hydraulic jack other end is articulated in the end that the center of gravity adjusting device connects antecurvature tooth, the hinged antecurvature tooth tail end of the second hydraulic jack other end outside; Said center suspension rod upper end is articulated in and promotes volume poplar device below, and center suspension rod lower end is articulated in back straight-tooth tail end, and the center suspension rod makes the back straight-tooth in vertical state by the center of gravity adjusting device is spacing.

Said center of gravity adjusting device comprises center connecting rod and center of gravity adjusting lever, and the two ends of center connecting rod are hinged antecurvature tooth and back straight-tooth respectively, and the center of gravity adjusting lever is vertical spacing state with the center suspension rod.

Said center suspension rod is articulated in through the wire rope cable and promotes volume poplar device below, and the wire rope cable is made up of wire rope parcel cable.

Said first hydraulic jack all is connected Hydraulic Station with second hydraulic jack, and Hydraulic Station is arranged at and moves in the lifting dolly or be arranged on the straight-tooth of back or be arranged on the antecurvature tooth.

Said Hydraulic Station connects first hydraulic jack and second hydraulic jack through the order actuating unit.

The tangent line of said antecurvature tooth tail end camber line is 0-180 ° with back straight-tooth angle.

The hinged back of one end of first and second hydraulic jack straight-tooth tail end; The first hydraulic jack other end is articulated in the end that the center of gravity adjusting device connects antecurvature tooth; The hinged antecurvature tooth tail end of the second hydraulic jack other end outside, when first hydraulic jack shrinks fully, second hydraulic jack is opened fully; The tangent line of antecurvature tooth tail camber line is parallel with the back straight-tooth, and this moment, grab bucket was drawn in fully; When first hydraulic jack is opened fully, when second hydraulic jack shrank fully, the tangent line of antecurvature tooth tail camber line was 180 degree with the back straight-tooth, and this moment, grab bucket was opened fully; When first hydraulic jack shrinks fully, when second hydraulic jack shrank fully, the tangent line of antecurvature tooth tail camber line was vertical with the back straight-tooth, and grab bucket half-open or semi-closed this moment.Freely move between half-open, the standard-sized sheet of grab bucket, semi-closed, closure, controlled successively contraction of first and second hydraulic jack execution, open through the order actuating unit by Hydraulic Station, it is easy and simple to handle to grab bucket, and folding is flexible.

Grab bucket is opened fully, and the center suspension rod makes the back straight-tooth in vertical state by the center of gravity adjusting lever is spacing, and the center of gravity of grab bucket is near back straight-tooth vertical line; When straight-tooth relies on grid vertically to descend water after grab bucket; The high speed water jet impact grab bucket, grab bucket is difficult for inclination flip around wire rope cable and center suspension rod pin joint, and following water is stable; And the whole gravity of grabbing bucket acts on the straight-tooth of back fully, and is bigger to foreign material thrust on the grid; Antecurvature tooth is opened fully, down pushes away foreign material can't be deposited in the grab bucket, and grab bucket can be pushed into the grid bottommost down, and grid removes contamination thoroughly, efficiently; In addition; Push away in the process down in grab bucket, the grab bucket center of gravity is big to the wire rope cable tension, wire rope cable cooperation slack rope device make the wire rope cable under water with tension all the time waterborne; The wire rope cable is loosening when avoiding underwater operation is rushed in the hidden danger in the grid by current; And guaranteeing to promote winding plant, to batch the wire rope cable not disorderly, reduces operational failure, improves security performance and application life.

The utility model utilizes hinged antecurvature tooth of center of gravity adjusting device and back straight-tooth to form grab bucket; Realize grab bucket folding control by the hinged antecurvature tooth of first and second hydraulic jack, center of gravity adjusting device, back straight-tooth; And hang through the center suspension rod and to connect the back straight-tooth and realize the grab bucket lifting; Solve the conventional hydraulic grab bucket in water velocity during greater than 1 meter per second; Grab bucket can't be descended water or be prone to the drawback that upset influences the efficient of removing contamination under water; It is stable, reliable, the efficient of removing contamination height, and the plumbing mouth that adapt to various grids and various complicated current, water quality, is widely used in water utilities fields such as power station, Wastewater Treatment Plant, water works, municipal sewage, storm-water drainage station, drainage pumping stations, river course reservoir, agricultural irrigation uses.

Description of drawings

Fig. 1 is the utility model standard-sized sheet structural representation;

Fig. 2 is the utility model semi-closed structural representation;

Fig. 3 is the utility model complete closure structural representation.

Among the figure: wire rope cable 1, electric connection 2, center suspension rod 3, back straight-tooth 4, center connecting rod 5, center of gravity adjusting lever 6, antecurvature tooth 7, the first hydraulic jacks 8, the second hydraulic jacks 9, order actuating unit 10, Hydraulic Station 11.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Shown in Fig. 1-3, a kind of full open type hydraulic grab electric connection 2, center suspension rod 3, back straight-tooth 4, center connecting rod 5, center of gravity adjusting lever 6, antecurvature tooth 7, first hydraulic jack 8, second hydraulic jack 9, order actuating unit 10 and Hydraulic Station 11.Wire rope cable 1 lower end is through electric connection 2 hinged center suspension rods 3 upper ends; Center suspension rod 3 lower ends are articulated in the tail end of back straight-tooth 4; The tail end of the tail end of back straight-tooth 4 connecting rod 5 hinged antecurvature teeth 7 through the center; Hinged first and second

hydraulic jack

8,9 one ends of the tail end of back straight-tooth 4, the other end of first hydraulic jack 8 is articulated in the inboard of center connecting rod 3 hinged antecurvature tooth one ends, and the other end of second hydraulic jack 9 is articulated in the outside of antecurvature tooth 7 tail ends; First and second

hydraulic jack

8,9 connects Hydraulic Station 11 through order actuating unit 10, and Hydraulic Station 11 is arranged on the straight-tooth 4 of back; Center connecting rod 5 is provided with a center of gravity adjusting lever 6, and center of gravity adjusting lever 6 and center suspension rod 3 are vertical spacingly to make back straight-tooth 4 all the time in vertical state.

Fig. 1 is the utility model grab bucket full-gear sketch map, and first hydraulic jack 8 is in full open position among the figure, and second hydraulic jack 9 is in complete contraction state, and open fully between antecurvature tooth 4 and the back straight-tooth 7 this moment; Fig. 2 is the half-open or semi-closure view of the utility model grab bucket, and first hydraulic jack 8 is in complete contraction state among the figure, and second hydraulic jack 9 is in complete contraction state, at this moment semi-open or semi-closed between antecurvature tooth 4 and the back straight-tooth 7; Fig. 3 is the utility model grab bucket full-shut position sketch map, and first hydraulic jack 8 is in complete contraction state among the figure, and second hydraulic jack 9 is in full open position, at this moment complete closure between antecurvature tooth 4 and the back straight-tooth 7.

The course of work of this grab bucket is: grab bucket descends; Back straight-tooth is 90 ° with the water surface all the time, and the antecurvature tooth of grab bucket this moment is opened (as shown in Figure 1) fully with the back straight-tooth, and all wt of grabbing bucket is accumulated on the straight-tooth of back; To obtain the back straight-tooth to the maximum downward thrust of rubbish on floater and the grid; When grab bucket was pushed into the grid bottom, the wire rope cable took place loosening, by the work of control circuit board control Hydraulic Station; Hydraulic Station is controlled the contraction of first hydraulic jack successively through the order actuating unit and is realized that by the antecurvature tooth of center connecting rod rotation drive antecurvature tooth semi-closed, control second hydraulic jack stretch out the antecurvature tooth of realization closure fully, and the extracting foreign material are closed up in grab bucket; Grab bucket is risen, Hydraulic Station through the order actuating unit control that first hydraulic jack stretches out, second hydraulic jack shrinks and drives antecurvature tooth by the rotation of center connecting rod and realize that antecurvature tooth opens fully.

Claims

1. full open type hydraulic grab; It is characterized in that: said grab bucket comprises back straight-tooth, antecurvature tooth, first hydraulic jack, second hydraulic jack, center suspension rod and center of gravity adjusting device; The tail end of back straight-tooth and the tail end of antecurvature tooth are articulated in center of gravity adjusting device two ends respectively; The all hinged back of first hydraulic jack, one end and second hydraulic jack, one end straight-tooth tail end; The first hydraulic jack other end is articulated in the end that the center of gravity adjusting device connects antecurvature tooth, the hinged antecurvature tooth tail end of the second hydraulic jack other end outside; Said center suspension rod upper end is articulated in and promotes volume poplar device below, and center suspension rod lower end is articulated in back straight-tooth tail end, and the center suspension rod makes the back straight-tooth in vertical state by the center of gravity adjusting device is spacing.

2. a kind of full open type hydraulic grab according to claim 1; It is characterized in that: said center of gravity adjusting device comprises center connecting rod and center of gravity adjusting lever; The two ends of center connecting rod are hinged antecurvature tooth and back straight-tooth respectively, and the center of gravity adjusting lever is vertical spacing state with the center suspension rod.

3. a kind of full open type hydraulic grab according to claim 1 is characterized in that: said center suspension rod is articulated in through the wire rope cable and promotes volume poplar device below, and the wire rope cable is made up of wire rope parcel cable.

4. according to claim 1 or 3 described a kind of full open type hydraulic grabs, it is characterized in that: said first hydraulic jack all is connected Hydraulic Station with second hydraulic jack, and Hydraulic Station is arranged at and moves in the lifting dolly or be arranged on the straight-tooth of back or be arranged on the antecurvature tooth.

5. a kind of full open type hydraulic grab according to claim 4 is characterized in that: said Hydraulic Station connects first hydraulic jack and second hydraulic jack through the order actuating unit.

6. a kind of full open type hydraulic grab according to claim 1 is characterized in that: the tangent line of said antecurvature tooth tail end camber line is 0-180 ° with back straight-tooth angle.