SU1521678A1 - Hopper closure - Google Patents

Abstract

The invention relates to the storage and unloading of bulk materials from containers, in particular to closures for bins. The purpose of the invention is to increase reliability. The bolt consists of a lid with a hook 4 fixing the lid on the ledge 22 of the hopper, the rocker arm 16 pivotally fixed in the hook by means of the axis 15 and the groove 13, the shaft 6 fixed on the bunker, the drive for moving the lid in the form of drum mounted on the shaft with a rocker, a spring-loaded dog 18 mounted on a hook by means of a hinge 17, and a ratchet wheel 10 rigidly mounted on the shaft 6 for interacting with the dog when the valve is opened. In order to ensure reliable fixation of the lid on the bunker, if the unloaded material gets in between the hook, the hook can move vertically relative to the lid by making a groove 12 in the hook in the form of an elongated hole in which the lid axle 14 is located. 3 il.

Description

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The invention relates to the storage and unloading of bulk materials from containers, in particular to closures for bins.

The purpose of the invention is to increase reliability.

When the valve is closed, the bulk material from the hopper falls between the valve lid and the hopper, which prevents the lid from being fixed on the hopper. Installing the locking hook on the lid in such a way that it has the possibility of vertical movement relative to the lid when the valve closes, ensures that the lid is securely fixed on the hopper when bulk material gets between them. A spring between the hook and the lid ensures the seal between the lid and the hopper.

Improving the reliability of the bolt is also achieved by the fact that it reduces the number of hooks to one, since fixing the lid on the case with several hooks in conditions of material outflow from the bunker may not be. To fix it with one hook placed in the center of the lid, the bolt is fitted with a rocker arm hinged but hooked, the ends of the bar are connected by ropes to the drive drums, and the drive drums are fixed on the shaft mounted on the bunker. Such a design avoids the cap skewing relative to the hopper as a result of applying equal forces to the ends of the rocker arms. To remove the cover from engagement with the hopper, a spring loaded dog is hinged on the hook, and a ratchet wheel is mounted on the shaft, which interacts with the dog when the bolt is opened.

FIG. 1 shows the valve for the hopper, side view (dash-dotted line shows the lid in the open position); in fig. 2 is a view A of FIG. I; in fig. 3 shows a section BB in FIG. 2

The stopper for the hopper 1 contains a hinged 3 fixed lid 3 with a hook 4 mounted on the side surface of the hopper by means of the supports 5 shaft b, on which the lid movement actuator in the form of drums 7 and 8, sprocket 9 and ratchet wheel 10 is located.

An asterisk 9 is connected to a shutter drive (not shown) by means of a chain 11. Grooves 12 and 13 are made in hook 4. Hole 14 is placed in slot 12 and rigidly attached to cover 3, and in axis 13 is mounted on axis 15 of the beam 16. made in the form of an elongated hole, due to which it is possible to move the hook vertically relative to the cover.

On top of the hook 4 is hinged on the axis 17 of the pawl 18, which is pressed against the ratchet wheel 10 spring 19.

By spring 20, hook 4 is pressed from cover 3. On the latter, stop 21 is rigidly fixed to limit the angle of rotation of hook 4; projection 22 is made on the hopper 1

hook 4 interaction. The beam 16 is connected to the drums 7 and 8 by means of ropes 23 and 24, each of which is attached at one end to the beam 16, and the other end of the rope 23 (or 24) is rigidly

mounted on a drum 7 (or 8).

The shutter works as follows. When the shutter is closed, the lid 3 with the spring 20 is tucked into the hopper 1. The hook 4 is engaged with the protrusion 22. The dog 18 is pressed by the spring 19 force to

5 to the ratchet wheel 10. To open the gate, it is necessary to turn on a gate drive (not shown), from which movement to shaft 6 is transmitted via chain 11 and sprocket 9. Shaft 6 begins to rotate Q in supports 5 rigidly attached to hopper 1 and ratchet wheel 10 rigidly mounted on the shaft 6, with one of its teeth, acts on the pawl 18 pivotally mounted via the axis 17 on the hook 4. Movement from the pawl 18 transmits 5 s to the hook 4, which begins to rotate about the axis 14, slides along the protrusion 22. Rotate the hook 4 accompanied by moving it is upward about the same axis 14, i.e. the axis 14 of the hook 4 is horizontally mixed relative to the contact point of the hook 4 with the protrusion 22 closer to the hinges 2 of the cover 3. When the shaft 6 rotates, the drums 7 and 8 rotate rigidly on shaft 6. There is a winding of the ropes 23 and 24 from the drums 7 and 8. At the moment

 when the hook 4 comes out of engagement with the protrusion 22, the ratchet wheel 10 with its tooth continues to act by means of the pawl 18 on the hook 4, push it down. The hook 4 rests on the cover 3 under the action of the spring 20 and the force transmitted by the ratchet wheel 10 to the hook 4, a gap is selected from above between the axis 14 and the end surface of the groove 12 of the hook 4. The movement from the hook 4 is transmitted through the axis 14 to the cover 3, which is from rummaging from the end face of the hopper 1, hanging on the hinges 2 and the ropes 23 and 24. As the ropes 23 and 24 are unwound from the drums 7 and 8, the cover 3 under its own weight and bulk material turns on the hinges 2. Between the cover 3 and the end of the bunker 1 is formed the gap through which the material begins to rise Pats from the bunker. As the ropes 23 and 24 wind up, this gap increases. The amount of material passing through the shutter also increases.

When the shutter is closed, the drive is turned on and movement to the shaft 6 is transmitted through the chain 11 and the sprocket 9 in the opposite direction. The ropes 23 and 24 begin to be wound on the drums 7 and 8, and the lid 3 is pulled by the ropes 23 and 24 to the bunker 1. The hook 4 at this time is rotated before interacting with the stop 21 and the spring 20 is released from the lid 3 until the axis 14 contacts the end surface groove 12 of hook 4. With further winding of the ropes 23 and 24 onto the drums 7 and 8, hook 4, touching projection 22, begins to slide along it. The lid 3 is pressed against the end of the hopper 1 and the spring 20 is held in this position. Hook 4, overcoming the resistance of the spring 20, is stirred upwardly about the axis 14 and engages with the outgoing 22 of the hopper 1. The dog 18 is teeth of the ratchet wheel 10 thrown to the hook 4, without interfering with its engagement with the protrusion 22 of the hoppers one.

The use of the proposed valve for the hopper ensures reliable sealing of the valve with fixing the cover in

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closed position even when bulk material gets into its interface with the bunker.

Claims (1)

Invention Formula A bunker gate containing a lid hinged on the bunker, a mix drive, a lid and a spring-loaded hook for fixing the lid to the bunker, characterized in that, in order to increase reliability, it is provided with a rocker arm and a spring-loaded hinged dog attached to the hook, shaft, mounted on the housing, and a ratchet wheel placed on the shaft to interact with the pawl when opening the bolt, while the hook is mounted on the lid, is spring-loaded relative to it and has the possibility of vertical relative to the lid escheni and cap movement drive is designed as a reel shaft mounted on the ropes, bonded with a yoke. (pi / e.i sixteen 2 fie.g