CN2495680Y

CN2495680Y - Jetting moveable doctor knife

Info

Publication number: CN2495680Y
Application number: CN 01250192
Authority: CN
Inventors: 邱喜山
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-30
Filing date: 2001-07-30
Publication date: 2002-06-19
Anticipated expiration: 2011-07-30

Abstract

A jet mobile scraper is based on the jet theory, and high-pressure water is pumped through a high-pressure water pump, a piston driven by the jet conversion device conducts reciprocating movement, and the pin axis in the center of the piston through a shaft drives the scraper sliding axis on the pulley supporti device to move. The jet mobile scraper operates fast and stably, and avoids the drying cylinder and roller from generating scratches and has other characteristics, and can significantly extend the operating life of equipment.

Description

Jetting moveable doctor knife

The utility model relates to the paper making equipment field, specifically refers to a kind of scraper that is used to remove drying cylinder and roller surface paper pulp.

In the paper process, need in time to remove the residual paper pulp of drying cylinder and roller surface.Though the fixed scraper of prior art is simple in structure, fixed doctor makes drying cylinder and roller surface produce cut easily, influences the service life of drying cylinder and roller, and scraper also needs often to change; The portable scraper of electronic, vapour pressure is complex structure not only, and cost high difficulty is installed, and operational shock power is big, and is not steady.

The purpose of this utility model provides a kind of simple in structure, and is with low cost, moves briskly, steady, do not make drying cylinder and roller surface produce cut, the portable scraper of long service life.

The purpose of this utility model is achieved in that the sliding axle two ends with scraper tool apron place in the supporting base that has pulley gear, sliding axle is connected by the bearing pin on the piston of shaft joint and hydraulic piston device, utilize jet current principle, by high-pressure hydraulic pump, automatic reverse fluidic plate, promote the piston motion and to drive scraper reciprocating.

The utlity model has simple in structurely, cheap, especially operate steadily, do not produce the characteristics of cut, can obviously prolong the service life of drying cylinder and roller and scraper.

Below in conjunction with accompanying drawing, describe structure of the present utility model and working method in detail.

Accompanying drawing 1 the utility model general structure schematic diagram.

Accompanying drawing 2 the utility model doctor back masters look schematic diagram.

Accompanying drawing 3 the utility model doctor back A-A cross-sectional schematic.

Shown in the accompanying drawing: the utility model is by jet reversing arrangement 1, piston apparatus 2, and shaft joint 3, scraper 4 and doctor back 5 constitute; Jet reversing arrangement 1 downside has a high-pressure intake pipe 6, and two high-pressure water pipe 7 and two normal pressure outlet pipes 8 are arranged at its top; Two high-pressure water pipe 7 are communicated with cylinder body 10 inner chambers by the left and right end cap 9 of piston apparatus 2 respectively; The center of the piston 11 of piston apparatus 2 is installed with a bearing pin 12, left and right end cap 9 is passed at bearing pin 12 two ends, be embedded with a sealing ring 13 and a sealing bearing pin supporting base 14 on end cap 9 outside axis holes, the end cover inboard of pin bearing seat 14 is equipped with a sealing ring 15 again, and its inner chamber once tank 16 percolating water can be imported the pond; Drawing together cutter supporting base 5 is combined by the pulley 18 that two wheel shafts are equipped with bearing 17, scraping in the slide opening that pulley 18 that position that the tool rest two ends keep at a certain distance away embeds doctor back 5 respectively is combined to form of the sliding axle 19 of scraper 4, the one end is connected with bearing pin 12 by shaft joint 3.Doctor back 5 has a closure.

During the utility model work, extract 4-6kg/cm by high-pressure hydraulic pump ²The filtration clear water inject the water inlet pipe 7 of jet reversing arrangement 1, alternately enter both sides cylinder body 10 inner chambers of the piston 11 of piston apparatus 2 by high-pressure water pipe 7, it is reciprocating to promote piston 11, the bearing pin 12 of piston 11 drives the sliding axle 19 of scraper 4 by shaft joint 3, thereby it is reciprocating to promote to draw together cutter 4; In the course of the work, ooze out from the pin shaft hole of end cap 9, can be automatically flow into the pond through mozzle along the return flume 16 of bearing pin literary composition bearing 14 inner chambers as low amounts of water is arranged in the cylinder body 10.The sliding axle 19 of scraper 4 is owing to be embedded in the slide opening that two pulleys 18 in the scraper supporting arrangement 5 are combined to form, and the wheel shaft two ends of pulley 18 are equipped with bearing 17 respectively, thereby scraper 4 operations are got up, not only steadily but also brisk.

Claims

1, a kind of Jetting moveable doctor knife, by the jet reversing arrangement, piston apparatus, scraper and scraper supporting arrangement and shaft joint are formed, and it is characterized in that: two high-pressure water pipe of jet reversing arrangement are communicated with inner chamber of cylinder block by the two end cap of piston apparatus; The piston center of piston apparatus is installed with a bearing pin, and end cap is all passed at the bearing pin two ends, and the double density seal is arranged; One sliding axle is arranged on the tool rest of scraper, and the position that the tool rest two ends keep at a certain distance away of scraping of sliding axle is embedded in respectively in the pulley hole of scraper supporting arrangement, and bearing pin is connected by shaft joint with the scraper sliding axle.

2, Jetting moveable doctor knife as claimed in claim 1, it is characterized in that: there is an indent sealing ring in the pin shaft hole outside of the cylinder body two end cap of piston apparatus, and the inboard sealing ring in addition of the pin shaft hole of pin bearing seat, the pin bearing seat inner chamber in the middle of two sealing rings is tank once.

3, Jetting moveable doctor knife as claimed in claim 1, it is characterized in that: the pulley combination that the pulley of scraper supporting arrangement is equipped with bearing by two wheel shaft two ends forms, the position that the tool rest two ends keep at a certain distance away of scraping of the sliding axle of scraper embeds in the slide opening that is formed by two pulley combinations, and the scraper supporting arrangement has a closure.