CN2523795Y

CN2523795Y - Automatic pressure scraper

Info

Publication number: CN2523795Y
Application number: CN 02212620
Authority: CN
Inventors: 王秋江
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-31
Filing date: 2002-01-31
Publication date: 2002-12-04
Anticipated expiration: 2012-01-31

Abstract

The utility model discloses an automatic pressurizing scraper bucket, which includes a frame, a plurality of rake tooth and a rotating rake that are arranged on the frame, a hydraulic device driving the scraper bucket to work and an electrical component which controls the scraper bucket to work; one end of a piston rod of an oil cylinder of the hydraulic device is connected with a rotating rake, more than two overflow valves are arranged in the hydraulic device, a two-way hydraulic lock is arranged on a pipeline which is communicated with the oil cylinder, more than two travel switches are arranged in the electric component which controls the hydraulic device. The cleaning machine with the automatic pressurizing scraper bucket can provide different working pressures according to need when meeting different filths and has better cleaning capacity for different filths; furthermore, the oil temperature is not high because the hydraulic device does not work continuously, so that the equipment has the advantage of long service life.

Description

Automatic pressure scraper

Technical field

The utility model belongs to the equipment of removing contamination, and relates in particular to the equipment of the solid dirt in the cleaning rivers and lakes.

Background technology

In the rivers and lakes the different dirt of numerous species is arranged at present, as pasture and water class, branch class, fallen stock and plastics class that some are discarded, need use trash rake to go to remove in order to clear up these dirts, now the trash rake that adopts is to remove to clamp dirt by being contained in commentaries on classics rake on the framework and the folding between the rake teeth in the slusher of removing contamination, after rising to certain altitude, put again in people's dirt-collecting vehicle and transport, and the hydraulic means of control slusher work is made up of oil filter, oil pump, one way valve, pressure switch, overflow valve, solenoid operated directional valve and oil cylinder, and overflow valve only has one in this device.Because overflow valve is used to provide operating pressure, therefore in a single day to run into crud layer thicker for existing trash rake, slusher will be not enough because of operating pressure, can't inject in the crud layer or can not grab dirt and cause, this can make the hydraulic means of slusher work all the time, cause oily temperature rise, it is also bad to damage the hydraulic means and the effect of removing contamination.

Summary of the invention

The purpose of this utility model is, designs a kind of Automatic pressure scraper that different operating pressures can be provided, different dirts all be had better removing ability and long service life.

The purpose of this utility model is achieved through the following technical solutions: a kind of Automatic pressure scraper, comprise framework, be contained in the rake teeth on the framework and change the hydraulic means of rake, the work of driving slusher parts and control the electric component of its work, and oil cylinder piston bar one end of hydraulic means links to each other with the commentaries on classics rake, plural overflow valve is housed in hydraulic means, on the pipeline that links with oil cylinder, bidirectional hydraulic lock is housed, in the electric component of control hydraulic means, is equipped with two with upper stroke switch.

Three overflow valves are housed in hydraulic means, in the circuit of control hydraulic means two travel switches are housed.

Hydraulic means is packed on the framework of slusher.

Plural overflow valve is arranged in the hydraulic means of this Automatic pressure scraper, when trash rake runs into different dirts, can provide different operating pressures as required, remove to satisfy the needs of various operating modes, therefore different dirts is all had and remove ability preferably.Since with oil line pipe that oil cylinder communicates on bidirectional hydraulic lock is housed, so when slusher is worked, after the slusher closure puts in place, though the travel switch outage, in-oil cylinder pressure oil is pressurize under the locking of bidirectional hydraulic lock still, touches another travel switch when dirt is transported to fixed point, hydraulic means just starts, this hydraulic means is not in running order always, can not cause oily temperature rise yet, so this equipment also has the advantage of long service life.

Description of drawings

Fig. 1 looks schematic diagram for the master of slusher.

Fig. 2 is the schematic side view of slusher.

Fig. 3 is for driving the hydraulic schematic diagram of slusher.

The specific embodiment

This Automatic pressure scraper comprises framework E, is contained in rake teeth A, the commentaries on classics rake B on the framework E, the hydraulic means D of driving slusher, and this hydraulic means D can be packed on the framework E, the piston rod C of the oil cylinder C of hydraulic means ₁An end with change rake B and link to each other, the principle of the electric component of hydraulic means and its work of control and connecting relation are equipped with oil filter 1 as shown in Figure 3 successively in the hydraulic means, oil pump 2, one way valve 3, pressure switch 4, overflow valve 5,6 and 7, solenoid operated directional valve 8, bidirectional hydraulic lock 9, oil cylinder 10, travel switch 11 and 12, bidirectional hydraulic lock 9 is contained on the oil-feed that communicates with oil cylinder, the flowline, and travel switch 11 is contained on the sidewall that changes rake B, or is contained in as required on other position.

The operating principle and the process of this slusher are as follows: it is when work, can be according to the pressure of overflow valve 5,6 in the selected hydraulic means of different operating pressures and 7, when the dirt that runs into is less when only opening an overflow valve 5 and can satisfy, then only need open one, other overflow valve cuts out.The dirt that runs in the process of removing contamination is more, and the operating pressure of hydraulic means overflow valve 5 is not enough, and oil cylinder stroke does not put in place, touch travel switch 11, then overflow valve 5 is opened, overflow valve 6 work, its system pressure become two overflow valves institute controlled pressure and, if this moment, pressure was still not enough, should open valve 6 again, valve 7 is started working, and then system pressure is three overflow valve pressure sums, make slusher that bigger operating pressure be arranged, can grasp the dirt at more dirts place.As the operating pressure of setting hydraulic means is when being 2Mpa, 5Mpa and 9Mpa, if the slusher insertion force needs 2 ton hours only to have overflow valve 5 work to get final product, if need 5 ton hours should open overflow valve 5,, make overflow valve 7 work if need 9 ton hours should open overflow valve 5 and 6 by overflow valve 6 work.

After this slusher has grasped the dirt auto-closing, system no longer boosts, travel switch 11 outages, and solenoid operated directional valve 8 also cuts off the power supply, oil pump outage simultaneously, pressure oil is through the meta straight gyrus fuel tank off-load of solenoid operated directional valve 8, but the still pressurize under the locking of bidirectional hydraulic lock 9 of pressure oil in the oil cylinder 10 touches travel switch 12 when slusher rises to top dead centre to dirt, hydraulic means starts, slusher opens, and dirt is put into and should be put container and finish the work of once removing contamination, and then begins next time.

The oil cylinder 10 that provides in the present embodiment is two, but in fact can select one or more oil cylinder as required for use, and overflow valve also can be selected two or more for use as required in hydraulic means, and these are all at the row of the utility model protection.

The utility model except that the slusher that can be used for only singly having, the slushers of removing contamination that are contained on the trash rake that are applicable to more.

Claims

1, a kind of Automatic pressure scraper, comprise framework, be contained in the rake teeth on the framework and change the hydraulic means of rake, the work of driving slusher parts and control the electric component of its work, and oil cylinder piston bar one end of hydraulic means links to each other with the commentaries on classics rake, it is characterized in that: plural overflow valve is housed in hydraulic means, on the pipeline that links with oil cylinder, bidirectional hydraulic lock is housed, in the electric component of control hydraulic means, is equipped with two with upper stroke switch.

2, Automatic pressure scraper according to claim 1 is characterized in that: three overflow valves are housed in hydraulic means, in the circuit of control hydraulic means two travel switches are housed.

3, Automatic pressure scraper according to claim 2 is characterized in that: hydraulic means is packed on the framework of slusher.