CN102564119A

CN102564119A - Pressing device of swinging arms of cylinder of furnace door

Info

Publication number: CN102564119A
Application number: CN2012100171716A
Authority: CN
Inventors: 余飞
Original assignee: Wisdri Wuhan Wis Industrial Furnace Co Ltd
Current assignee: Wisdri Wuhan Wis Industrial Furnace Co Ltd
Priority date: 2012-01-18
Filing date: 2012-01-18
Publication date: 2012-07-11
Anticipated expiration: 2032-01-18
Also published as: CN102564119B

Abstract

The invention relates to a pressing device of swinging arms of a cylinder of a furnace door. The pressing device comprises four cylinder pressing devices which are uniformly distributed at the upper ends and the lower ends of vertical columns at the left side and the right side of the furnace door; each cylinder pressing device mainly comprises a cylinder supporting frame, a cylinder base, a tail double-lug type cylinder, a transmission handle, a rod, a furnace door sealing base, a crank, a pin shaft and a push-pull block; the tail double-lug type cylinder is vertically arranged and is welded on the cylinder supporting frame by the cylinder base; a cylinder piston is connected with the transmission handle capable of rotating in the vertical plane by a joint bearing; the transmission handle is connected with the rod which is arranged in the horizontal direction and can rotate in the furnace-door sealing base through a key; the other end of the rod is connected with the crank by another key; the other end of the crank is connected with the pin shaft which is arranged in the horizontal direction; the pin shaft is movably connected with the push-pull block and can be pushed and pulled in the push-pull block; and the push-pull block is fixedly connected with the furnace door. The swinging angle of the cylinder is adjusted automatically according to the length of a piston rod, the air pressure amount and the length of a crank lever, and simultaneously the heat influence of flame and hot wave spraying on the cylinder can be reduced.

Description

Fire door cylinder swing arm hold down gag

Technical field

The present invention relates to chassis heating-furnace door equipment, be specially a kind of fire door cylinder swing arm hold down gag that compresses or unclamp fire door through cylinder driven in synchronism connecting rod.

Background technology

For current chassis Compaction of Heating Furnace Door hold-down mechanism; If adopt the flexible fire door cylinder swing arm hold down gag of single armed horizontal direction; Not only cylinder piston rod is long; The arm of force at the elongation back piston is longer just stressed big more, thereby piston rod causes local friction's increase between piston and the cylinder because of elongation causes cantilever design, has seriously shortened the cylinder operation life-span.And because of two cylinders are distributed in the fire door both sides, pressure point distributes possibly cause that less fire door and doorframe do not press tightly, and can causing Lou, fire causes thermal loss and reduces the chain life-span.The flexible fire door cylinder swing arm hold down gag of this horizontal direction also exists can't fire door be pushed back and unclamps, and promotes after swinging out but control oneself by fire door again.Therefore, not only profile is not attractive in appearance and efficient is low for this out-of-date methods, and can cause that the axis of guide was blocked by the gathering sill on the column when fire door rollback promoted and cause that fire door can't promote, accidents such as the sprocket wheel tooth bar grinds off in serious possibly taking place, the fracture of shaft coupling nylon rod.

Summary of the invention

The technical problem that the present invention will solve provides a kind of fire door cylinder swing arm hold down gag, can come to regulate voluntarily the cylinder pendulum angle according to piston rod length, amount of gas pressure and crank levers length, simultaneously, can reduce the heat affecting of flame and heat wave ejection to cylinder.

The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:

A kind of fire door cylinder swing arm hold down gag is characterized in that: comprise four cylinder hold down gags that are distributed on column side, fire door left and right sides upper-lower position; Described cylinder hold down gag mainly comprises cylinder bracket, air cylinder base, afterbody ears formula cylinder, transmission handle, bar, oven door sealing base, crank, bearing pin, push-and-pull piece; Described afterbody ears formula cylinder vertically is provided with and is welded on the cylinder bracket through air cylinder base; Cylinder piston is connected with the transmission handle that can in perpendicular, rotate through oscillating bearing, the bar that the transmission handle connects the horizontal direction setting and can in the oven door sealing base, rotate through key; The other end of bar is connected with crank through another key, and the vertical Plane of rotation of the Plane of rotation of crank and transmission handle parallels, and transmission handle and crank are 90 ° of layouts; The other end of crank connects the bearing pin that horizontal direction is provided with, and bearing pin and push-and-pull piece flexibly connect and can in the push-and-pull piece, carry out push pull maneuver to it, and the push-and-pull piece is fixedly connected with fire door, and the bearing pin guider is set on the push-and-pull piece.

Four one of common configurations of cylinder can guarantee the solenoid directional control valve of action simultaneously.

Said bearing pin guider is that four of being provided with on the push-and-pull piece are 60 ° of angles and are uniformly distributed with and are used for the guide plate to the bearing pin guiding.

The cylinder piston throw of lever compresses length according to fire door and confirms.

Be contained in the cylinder piston rod elongation when compressing on the air cylinder base; Promote the rotation of transmission handle through oscillating bearing; The transmission handle drives the bar that key is housed and in the oven door sealing base, rotates; The crank that the opposite side of bar is equipped with the band key comes push-and-pull piece on the fire door is realized compressing through the bearing pin on the crank, unclamps action in contrast.Hold down gag is installed in fire door left and right sides column totally four positions up and down, guarantees that fire door is smooth and easy to compress or unclamp.Cylinder distribution column side can reduce the heat affecting of flame ejection to cylinder simultaneously.

Since this device be when mounted through cylinder piston rod extend surplus capacity, atmospheric pressure value is regulated transmission handle pendulum angle and compressing degree, move simultaneously through four cylinders of electromagnetic switch valve regulation in the compacted or release process at fire door and accomplish the synchronism that compresses or unclamp.

Description of drawings:

Fig. 1: the fire door cylinder swing arm hold down gag structural representation of implementing according to the present invention;

Fig. 2: the i.e. left view of Fig. 1;

Wherein, cylinder bracket 1, air cylinder base 2, afterbody ears formula cylinder 3, oscillating bearing 4, transmission handle 5, bar 6, key 7, lubricating cup 8, oven door sealing base 9, crank 10, bearing pin 11, push-and-pull piece 12, fire door 13, guide plate 14.

The specific embodiment:

As illustrated in fig. 1 and 2; A kind of fire door cylinder swing arm hold down gag disclosed by the invention; Comprise four cylinder hold down gags that are distributed on column side, fire door left and right sides upper-lower position; And the upper and lower side of each heel post is all arranged a cylinder hold down gag, and described cylinder hold down gag mainly comprises cylinder bracket 1, air cylinder base 2, afterbody ears formula cylinder 3, transmission handle 5, bar 6, oven door sealing base 9, crank 10, bearing pin 11, push-and-pull piece 12; Described afterbody ears formula cylinder 3 vertically is provided with and is welded on the cylinder bracket 1 through air cylinder base 2; Cylinder piston is connected with the transmission handle 5 that can in perpendicular, rotate through oscillating bearing 4, the bar 6 that transmission handle 5 connects the horizontal direction setting and can in oven door sealing base 9, rotate through key 7; The other end of bar 6 is connected with crank 10 through another key 7, and the vertical Plane of rotation of the Plane of rotation of crank 10 and transmission handle 5 parallels, and transmission handle 5 is 90 ° of layouts with crank 10; The other end of crank 10 connects the bearing pin 11 that horizontal direction is provided with, and bearing pin 11 flexibly connects with push-and-pull piece 12, and push-and-pull piece 12 is fixedly connected with fire door, is provided with four on the push-and-pull piece 12 and is when steel plate 14 that 60 ° of angles are uniformly distributed with is used for bearing pin 11 up-downs and leads.

As illustrated in fig. 1 and 2, according to guaranteeing that fire door compresses length and confirms the cylinder piston throw of lever, promptly fire door is when compressing or unclamp, and the distance that the piston rod stroke needs greater than the fire door action is conveniently to regulate the amplitude that fire door compresses or unclamps.And when fire door rose or descend, push-and-pull piece 12 upper steel plates 14 played the guide effect to bearing pin 11, fire door is unclamped or compress thereby bearing pin 11 carries out push pull maneuver to it in push-and-pull piece 12.

When piston elongates or shortens; Driving bar 6 through transmission handle 5 rotates in oven door sealing base 9; The other end of bar 6 rotates through the crank 10 that another key 7 drives; The crank 10 that bearing pin 11 is housed just carries out the action that swings back and forth that fore-and-aft direction compresses or unclamps to the push-and-pull piece 12 that is welded on the fire door 13 down at the flexible of piston rod, the compressing or unclamp of realization fire door 13.Installing lubricating cup 8 on oven door sealing base 9, and whenever lubricated once to lubricating cup 8 apply oils at a distance from a week.

Above disclosedly be merely preferred embodiment of the present invention, can not limit the present invention's interest field certainly with this, the equivalence of therefore doing according to claim of the present invention changes, and still belongs to protection scope of the present invention.

Claims

1. a fire door cylinder swing arm hold down gag is characterized in that: comprise four cylinder hold down gags that are distributed on column upper and lower side position, the fire door left and right sides; Described cylinder hold down gag mainly comprises cylinder bracket, air cylinder base, afterbody ears formula cylinder, transmission handle, bar, oven door sealing base, crank, bearing pin, push-and-pull piece; Described afterbody ears formula cylinder vertically is provided with and is welded on the cylinder bracket through air cylinder base; Cylinder piston is connected with the transmission handle that can in perpendicular, rotate through oscillating bearing, the bar that the transmission handle connects the horizontal direction setting and can in the oven door sealing base, rotate through key; The other end of bar is connected with crank through another key, and the vertical Plane of rotation of the Plane of rotation of crank and transmission handle parallels, and transmission handle and crank are 90 ° of layouts; The other end of crank connects the bearing pin that horizontal direction is provided with, and bearing pin and push-and-pull piece flexibly connect and can in the push-and-pull piece, carry out push pull maneuver to it, and the push-and-pull piece is fixedly connected with fire door, and the bearing pin guider is set on the push-and-pull piece.

2. fire door cylinder swing arm hold down gag according to claim 1 is characterized in that: four cylinders all dispose and can guarantee the solenoid directional control valve of action simultaneously.

3. fire door cylinder swing arm hold down gag according to claim 1 and 2 is characterized in that said bearing pin guider is that four of being provided with on the push-and-pull piece are 60 ° of angles and are uniformly distributed with and are used for the guide plate to the bearing pin guiding.

4. fire door cylinder swing arm hold down gag according to claim 3, it is characterized in that: the cylinder piston throw of lever compresses length according to fire door and confirms.