CN2551883Y

CN2551883Y - Double door tripper

Info

Publication number: CN2551883Y
Application number: CN 02275740
Authority: CN
Inventors: 邓敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-11
Filing date: 2002-07-11
Publication date: 2003-05-21
Anticipated expiration: 2012-07-11

Abstract

The utility model relates to a material discharging device with double doors. A sealed isolating spring chamber is arranged on the right side of a valve body of the material discharging device with double doors, and a sealed isolating cam chamber is arranged on the left side of the valve body of the material discharging device with double doors. An upper valve and a lower valve separately seal a material inlet and a material outlet. An upper door shaft and a lower door shaft are mutually parallel and transversely penetrate the cam chamber, the valve body and the spring chamber. An upper door arm and a lower door arm in a valve cavity are fixedly arranged on the upper door shaft and the lower door shaft, and the other end of the upper door arm and the lower door arm is fixedly connected with the upper valve and the lower valve. One end of the upper door shaft and the lower door shaft in the cam chamber is connected with an upper slide rod and a lower slide rod by an upper short arm, a lower short arm and a hinge sheet. An eccentric cam is positioned between the upper slide rod and the lower slide rod. A cam shaft is connected with a motor by a speed reduction device. The other end of the upper door shaft and the lower door shaft in the spring chamber is connected with an upper fixing plug and a lower fixing plug through an upper pull rod, a lower pull rod and a spring. The cam rotates a circle to orderly poke the upper slide rod and the lower rod, and the upper valve and the lower valve are opened and closed in turn. The device has the advantages that at least one valve is ensured to be sealed always and can not leak air; the opening and closing frequency of valves is adjustable; the valves are ensured to be sealed and tightly closed by elasticity; the cam and springs are in a sealed casing body and can keep better working state for a long time.

Description

Two-door discharger

(1) technical field

The utility model relates to a kind of discharger, particularly a kind of two-door discharger.

(2) technical background

At powdery type material pneumatic feedway,, need valve when cutting off air-flow, powder material to be discharged as conversion place or the discharge place of devices such as cyclone collector, bag collector.What generally use at present is the star rotor discharger.Star rotor is contained in the housing, and the star blade of rotor cuts off the air-flow of ventilation inlet and outlet, drops on when blade that the material in the blade layout is rotated takes the outlet top to fall.Certain clearance is always arranged between rotor blade and the housing, and the gap is too small, rotates difficulty, and very easily stuck by powder material or material piece, causes burn-down of electric motor; Excessive clearance then leaks out in a large number, influences equipment performance, also causes environmental pollution.The commonly two-door discharger of another kind utilizes bar thick stick principle, and when the dust stratification weight on the gate-type valve surpassed counterweight, valve stirred discharging, and two-door keying in turn is with the envelope of maintaining secrecy.But irregular because of the motion of valve, two valves may be opened simultaneously, cause in a large number and leak out.

Chinese patent 97203284 " electronic pair of airtight ash-valve of turnover panel of cam-type " improves two-door discharger, adopts lower valve unlatching in turn on the cam-controlled.But it still uses the counterweight valve-off, when dust stratification can not guarantee the airtight of valve for a long time; Direct mount cam on the motor shaft, the cam rotation excessive velocities, valve is difficult to normal keying, also can't regulating control speed; The cam mechanism that exposes is difficult to long-term normal operation under the dust serious environmental.

(3) utility model content

The purpose of this utility model is a kind of two-door discharger of design, guarantees that two valves can not open simultaneously, guarantees lock wind, and each control mechanism all is in the fully enclosed casing, not influenced by dust, can permanently effective work.

The two-door discharger of the utility model design-calculated comprises lower valve, door-hinge, cam up and down, and the top of valve body is feeder hopper, and last valve retaining is under feeder hopper, and the bottom of valve body is a discharging opening, and lower valve keeps off on discharging opening.Door-hinge is parallel to each other up and down, laterally runs through valve body.On the door-hinge, the other end and the last lower valve of last Xiamen arm were affixed about last Xiamen arm was packed in.An end of door-hinge installs galianconism up and down up and down, and galianconism is by hinge sheet and slide bar loose joint up and down up and down, and the hinge joint of slide bar one end is being fixed on the sliding pole axis of valve interior wall up and down, and is rotatable for the center slide bar with the sliding pole axis.Eccentric cam is between slide bar up and down, and camshaft is connected with motor by speed reduction gearing.Camshaft equates to be D with the distance of slide bar up and down.The minor axis D1 of cam is less than above-mentioned distance D, and major diameter D2 is greater than this distance D, and the cam outer rim is smooth closed curve.The other end of door-hinge installs lower link up and down, and last lower link is connected with the gim peg up and down that is fixed on valve interior wall by spring.

Slide bar respectively once about the cam revolution moved and stirs successively in a week.When the cam external diameter goes to the upper slide bar place greater than the part of D, stir upper slide bar, the rotation of upper slide bar is gone up door-hinge by last galianconism and the drive of hinge sheet and is rotated, and has elongated the fixing spring of an end by top rod when last door-hinge rotates, and goes up door-hinge simultaneously and will go up valve open by the arm of calling.When the cam external diameter goes to when relative with upper slide bar less than the part of D, cam and slide bar disengage, and the pulling force of spring will be gone up the door-hinge pulling and go back to original position, and last valve closing, upper slide bar also go back to original position.The switching of lower valve therewith roughly the same.

The advantage of the two-door discharger of the utility model is: 1 cam rotation is opened lower valve in turn, guarantees to have at least a valve to be in air-tight state all the time, can not leak out; 2 regulate speed reduction gearings can the adjusting cam rotating speed, and the also frequency that opens and closes with regard to adjustable gate is to adapt to different applications; Sealing was closed when 3 constant spring forces guaranteed valve closing, did not leak out; 4 cams and spring are positioned at the leak free housing, not influenced by dust, keep the works fine state for a long time.

(4) description of drawings

Fig. 1 is the outward appearance front elevation of the two-door discharger of the utility model;

Fig. 2 is the outward appearance birds-eye view of the two-door discharger of the utility model;

Fig. 3 be Figure 1A-A to section-drawing, i.e. valve body section-drawing;

Fig. 4 be Figure 1B-B to section-drawing, i.e. cam chamber section-drawing;

Fig. 5 be Fig. 1 C-C to section-drawing, i.e. spring housing's section-drawing;

Fig. 6 be Fig. 1 D-D to section-drawing, promptly go up door-hinge place section-drawing.

(5) specific embodiment

As Fig. 1～shown in Figure 6, the two-door discharger of the utility model design-calculated comprises lower valve 8,8 ', door-hinge 6,6 ', cam 13 up and down, and the top of valve body 2 is feeder hopper 5, and last valve 8 retainings are feeder hopper 5 times, the bottom of valve body 2 is a discharging opening 3, and lower valve 8 ' retaining is on discharging opening 3.Door-hinge 6,6 ' is parallel to each other up and down, laterally runs through valve body 2.Last Xiamen arm 7,7 ' is packed in up and down on the door-hinge 6,6 ', and last Xiamen arm 7,7 ' the other end and last lower valve 8,8 ' are affixed.Door-hinge 6, an end of 6 ' stretch out from valve body 2 left walls up and down, install galianconism 9,9 ' up and down, galianconism 9,9 ' is by hinge sheet up and down 10,10 ' and slide bar 11,11 ' loose joint up and down up and down, slide bar 11, the hinge joint of 11 ' one end are being fixed on the sliding pole axis of valve body wall up and down, are that center slide bar 11,11 ' is rotatable with the sliding pole axis.Eccentric cam 13 is positioned at up and down between the slide bar 11,11 ', and camshaft 12 is connected with motor by speed reduction gearing.Camshaft 12 and slide bar up and down 11,11 ' distance equate to be D.The minor axis D1 of cam 13 is less than above-mentioned distance D, and major diameter D2 is greater than this distance D, and cam 13 outer rims are smooth closed curve.Door-hinge 6,6 ' the other end stretch out from valve body 2 right walls up and down, install lower link 15,15 ', and last lower link 15,15 ' is connected with the gim peg up and down 17,17 ' that is fixed in valve body wall by spring 16,16 '.

Cam 13 outer rims are smooth closed curve, cam 13 outside diameter d are 80～120 degree greater than camshaft 12 with cooresponding camshaft 12 central angles of part of slide bar 11,11 ' distance D up and down, and its outside diameter d is 280～240 degree less than cooresponding camshaft 12 central angles of the part of D.Therefore the valve closing time is 280/80～240/120 times of open-interval, promptly 3.5～2 times.The valve closing time, promptly when a valve closing, another valve was not to open immediately, thereby guarantees that two valves can not opened simultaneously up and down, guarantees to lock wind greater than the opening time.

Cam 13 maximum outside diameter ends are equipped with roller 14, when cam 13 stir up and down slide bar 11,11 ' time, roller 14 and be friction of rolling between the slide bar 11,11 ' up and down, cam 13 and slide bar 11,11 ' is not easy to wear up and down.

The left side of valve body 2 is the cam chamber 4 of seal isolation, in it for stretch out door-hinge 6,6 ' left end up and down from valve body 2 left walls, galianconism 9,9 ', hinge sheet 10,10 ', slide bar 11,11 ' and eccentric cam 13 up and down up and down up and down.The right side of valve body 2 is the spring housing 1 of seal isolation, in it for stretch out up and down door-hinge 6,6 ' right-hand member from valve body 2 right walls, go up lower link 15,15 ', spring 16,16 ' and gim peg 17,17 ' up and down.

The speed reduction gearing of motor adopts turbine worm device or reduction gear apparatus or pulley deceleration device, and cam 13 slewing rates are that per minute 25～45 changes.

Claims

1 one kinds of two-door dischargers, comprise lower valve (8,8 '), door-hinge (6,6 '), cam (13) up and down, the top of valve body (2) is feeder hopper (5), last valve (8) retaining is under feeder hopper (5), the bottom of valve body (2) is discharging opening (3), and lower valve (8 ') keeps off on discharging opening (3); It is characterized by:

Door-hinge (6,6 ') is parallel to each other up and down, laterally runs through valve body (2);

On the door-hinge (6,6 '), the other end of last Xiamen arm (7,7 ') and last lower valve (8,8 ') were affixed about last Xiamen arm (7,7 ') was packed in;

An end of door-hinge (6,6 ') stretches out from the left wall of valve body (2) up and down, install galianconism (9,9 ') up and down, galianconism (9,9 ') is by hinge sheet (10,10 ') and slide bar (11,11 ') loose joint up and down up and down up and down, and the hinge joint of slide bar (11,11 ') end is on the sliding pole axis that is fixed in valve body (2) wall up and down; Between the slide bar (11,11 '), camshaft (12) was connected with motor by speed reduction gearing about eccentric cam (13) was positioned at; Camshaft (12) equates to be D with the distance of slide bar (11) up and down, the minor axis D1 of cam (13) is less than above-mentioned distance D, and major diameter D2 is greater than this distance D, and cam (13) outer rim is smooth closed curve;

The other end of door-hinge (6,6 ') stretches out from the right wall of valve body (2) up and down, installs lower link (15,15 '), and last lower link (15,15 ') is connected with the gim peg up and down (17,17 ') that is fixed in valve body (2) wall by spring (16,16 ').

2 two-door dischargers according to claim 1 is characterized by:

Described cam (13) outside diameter d is 80～120 degree greater than the camshaft (12) and the cooresponding camshaft of part (12) central angle of slide bar (11,11 ') distance D up and down, and its outside diameter d is 280～240 degree less than the cooresponding camshaft of the part of D (12) central angle.

3 two-door dischargers according to claim 1 and 2 is characterized by:

Cam (13) maximum outside diameter end is equipped with roller (14).

4 two-door dischargers according to claim 1 and 2 is characterized by:

The left side of valve body (2) is the cam chamber (4) of seal isolation, in it for stretch out door-hinge (6,6 ') left end up and down from the left wall of valve body (2), galianconism (9,9 '), hinge sheet (10,10 '), slide bar (11,11 ') and eccentric cam (13) up and down up and down up and down; The right side of valve body (2) is the spring housing (1) of seal isolation, in it for stretch out up and down door-hinge (6,6 ') right-hand member from the left wall of valve body (2), go up lower link (15,15 '), spring (16,16 ') and gim peg (17,17 ') up and down.

5 two-door dischargers according to claim 3 is characterized by:

6 two-door dischargers according to claim 1 and 2 is characterized by:

Cam (13) slewing rate is that per minute 25～45 changes.

7 two-door dischargers according to claim 3 is characterized by:

Cam (13) slewing rate is that per minute 25～45 changes.

8 two-door dischargers according to claim 4 is characterized by:

Cam (13) slewing rate is that per minute 25～45 changes.

9 two-door dischargers according to claim 5 is characterized by:

Cam (13) slewing rate is that per minute 25～45 changes.