JP2007050376A - Electric damper gear - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a smoothly operable electric damper gear without catching pebbles or the like at a lower part of a damper plate or between a side wall and the damper plate. <P>SOLUTION: This electric damper gear is provided with the fixed damper plate on a sectorial base plate and a power cylinder converting rotational movement of a motor to linear movement. An end part of the power cylinder is supported on an upper edge of the damper plate with a pin, the sectorial base plate and the damper plate are rotated around a pivotally supporting part by reciprocating movement of the power cylinder, and rocks or crushed stones supplied from a screen or other charge parts are automatically sorted and adjusted according to the desired sizes and distribution amount. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an electric damper that distributes rocks and crushed stones supplied from a screen or the like to a desired ratio.

  As shown in FIGS. 6 and 7, dampers are conventionally used to distribute rocks and crushed stones supplied from a screen or input unit according to a desired size and distribution amount.

  For example, if the size of crushed stone is 150-80mm 10%, 80-40mm 20%, 40-20mm 20%, 20-5mm 20%, 5mm or less (sand) 30% distribution ratio is required, multiple The rocks from the screen, chute and other input parts are distributed over the steps.

  In order to make such distribution, for example, the following steps are provided.

  When the crushed stone that is primarily crushed is supplied to the primary screen that has a mesh screen of 150 mm mesh on the upper stage and 80 mm mesh mesh on the lower stage, those that are less than 80 mm that pass through the lower mesh are transferred to the next secondary screen. 150-80mm remaining on the wire mesh is partly distributed to the stock pile as a product by a damper, and the surplus is sent to the secondary crusher along with the larger than 150mm remaining on the upper wire mesh and further crushed by a belt conveyor. The

  A secondary screen with a mesh screen of 40 mm sieve on the top and a mesh mesh of 20 mm on the bottom is screened for 80 mm or less, and screens up to 20 mm that pass through the bottom mesh remain on the tertiary screen and remain on the top mesh. 80-40mm is partly distributed to the stock pile as a product by the damper, surplus is distributed to the third crusher, and 40-40mm remaining in the lower wire mesh is also partly distributed to the stock pile as a product by the damper. The surplus is sent to the tertiary crusher together with the surplus of 80-40 mm by a belt conveyor and further crushed.

The upper screen is fitted with a wire mesh with a mesh size of 5 mm, the lower screen is made free, and the tertiary screen is screened for screens of 20 mm or less, and those up to 5 mm that pass through the upper wire mesh are transferred to the raw sand pile as raw material for crushed sand. A 20-5 mm piece remaining on the wire mesh is partly distributed to a stock pile as a product by a damper, and the surplus is sent to the raw sand pile as a raw material for crushed sand like a one up to 5 mm by a belt conveyor.
Hereafter, the literature using a damper is shown.
JP, 5-277443, A Method and apparatus for supplying a material to be crushed to a pulverizer

This document discloses a damper, but there is no description suggesting consideration for pebbles or the like that enter the lower part of the damper as in the present application.
JP, 2004-141713, A Aggregate manufacturing crushing system

  In this document, a bifurcated damper type is disclosed as a distributor. However, there is no description about how to deal with pebbles or the like sandwiched between the damper and the side wall, which is different from the configuration of the present application.

  The problem to be solved by the present invention is that, in the conventional damper, pebbles are sandwiched between the lower part of the damper plate and the screen sheet plate or between the chute part or the side wall and the damper at the time of distribution, and the damper stops moving and the distribution is performed. It was impossible to produce crushed stone according to the desired size and distribution of stone.

  In order to solve this problem, there is a method of attaching a brush under the damper or attaching a rubber skirt to make it difficult for pebbles etc. to enter, but these brushes and rubber skirt are worn quickly and take excessive time and cost for maintenance There were difficulties.

  1st invention provides the damper board fixed on the fan-shaped base board, the power cylinder which converts the rotational motion of an electric motor into a linear motion is provided, the edge part of this power cylinder is pin-supported to the upper end edge of a damper board, power The fan-shaped base plate and damper plate rotate around the shaft support by the reciprocating movement of the cylinder, and the rocks and crushed stones supplied from the screen and other input parts can be automatically distributed and adjusted according to the desired size and distribution amount. This is an electric damper device.

  In the second aspect of the invention, the protection plate is provided in accordance with the screen width or the width of both side walls of the chute portion so as to cover the circumferential portion of the fan-shaped base plate.

  In the third invention, the fan-shaped base plate has an opening degree of 120 degrees, and the opening degree can be changed in a plurality of stages within 60 degrees through a power cylinder pin-supported on the damper plate by current control to the electric motor.

  In the fourth invention, there is provided a display panel for displaying the operation of the power cylinder by the current control to the electric motor and the opening degree of the damper plate.

In the fifth aspect of the present invention, fan-shaped base plates are provided along the side wall plates on both sides that serve as crushed stone input portions, and saddle-shaped dampers are fixed between the fan-shaped base plates, and the power cylinders and the like The drive unit was connected.
(Function)

  In the first invention, since the end of the power cylinder is pin-supported on the upper edge of the damper plate, the rotational motion of the electric motor is transmitted to the damper plate so as to be converted into a linear motion, and the fan-shaped base plate and the damper plate are It rotates around the shaft support. Therefore, the damper plate is fixed to the fan-shaped base plate, there is no gap below the damper plate, and there is no inconvenience that pebbles or the like are caught.

  In addition, the opening of the damper plate can be controlled automatically by controlling the rotation of the motor so that the rocks and crushed stones supplied from the screen and other input parts can be automatically distributed according to the desired size and distribution amount. became.

  In the second invention, the circumferential portion of the fan-shaped base plate is protected by providing the protective plate so as to cover the circumferential portion of the fan-shaped base plate according to the screen width or the width of both side walls of the chute portion. Rocks etc. from the screen are distributed by the damper plate through this defense plate. If the fan-shaped base plate and the damper plate are made of a steel material having high wear resistance, it is safer and more durable.

  In the third invention, the fan-shaped base plate has an opening degree of 120 degrees, and the opening degree can be changed in multiple stages within 60 degrees through a power cylinder pin-supported by the damper plate by current control to the electric motor. According to the size of the aggregate, the distribution amount can be limited and distributed. If the opening degree is set in advance in a plurality of stages, it can be operated only by electric current control of the motor and the distribution amount can be safely changed.

  In the fourth aspect of the invention, a display panel is provided for displaying the operation of the power cylinder by the current control to the electric motor and the opening degree of the damper plate. If the effect etc. are described, usability will become very good. An indicator and potential meter can be installed and managed.

  In the fifth aspect of the present invention, fan-shaped base plates are provided along the side wall plates on both sides that serve as crushed stone input portions, and saddle-shaped dampers are fixed between the fan-shaped base plates, and the power cylinder and the like are attached to the fan-shaped base plate or the saddle-shaped damper. The drive unit was connected. Accordingly, there is no gap between which the pebbles and the like are sandwiched between the side wall plate and the damper plate, and the stones can be smoothly distributed in the inclined portion including the vertical shape.

  In the present invention, a fan-shaped base plate is provided in the chute portion and other input portions from the screen, and by fixing the damper plate on the fan-shaped base plate, there is no gap between them, and there is room for pebbles to enter below the damper plate. lost. Accordingly, the fan-shaped base plate and the damper are always smoothly rotated by the powerful operation of the power cylinder and other driving units, and the distributing operation becomes easy and automatic.

  Since the rotation of the fan base plate can be easily changed by operating the switch on the motor, it is safe and the distribution and distribution can be set in multiple stages in advance, so that the opening of the damper plate can be changed according to the size of the stone and the amount of distribution. The entire mechanism can be automated.

  The present invention can automatically adjust the distribution of rocks and crushed stones supplied from a screen or other input unit, and will be described with reference to the drawings.

  FIG. 1 is a plan view showing a main part of the present invention. Reference numeral 1 denotes a fan-shaped base plate having an opening degree of about 120 degrees. Of course, the opening is not limited to this. Reference numeral 2 denotes a damper plate, which is fixed on the sector base plate 1 by welding at a position of 60 degrees from the edge, so that no gap is generated between the sector base plate 1 and the damper plate 2. Reference numeral 3 denotes a shaft support portion of the damper plate 2.

  Reference numeral 4 denotes a power cylinder, the end of which is pin-supported on the upper edge of the damper plate, and the other end is connected to the electric motor and is rotatably provided by the pin support. The motor is rotated by current control and is connected to convert the rotary motion into a reciprocating linear motion of the power cylinder. As an example, a 700 mm stroke with a thrust of 1000 kg was used.

In addition, if it is a mechanism which converts rotational motion, such as an electric motor, into linear motion, it will not be limited to a power cylinder. A mechanism attached to the fixed frame and capable of simultaneously rotating the sector base plate and the damper plate around the shaft support portion, for example, a mechanism using a pinion gear can be used.
Reference numeral 5 denotes a pin support portion of the electric motor, and 6 denotes the electric motor.

7 is a defense plate which is provided in the screen width and covers the circumferential portion of the fan-shaped base plate 1. Preferably it is formed in an arc shape. 8 is a fixed frame, and 9 is a screen. The distributed crushed stone is conveyed from the exit of the chute by a belt conveyor to become a product, or conveyed to a secondary crusher facility and crushed by a crusher.
As shown in FIGS. 2 and 3, the damper plate 1 is inclined at about 40 degrees from the horizon. However, when the secondary screen and the tertiary screen chute are used, a crushed stone is obtained even if the inclination angle is set to be steeper than the primary screen. There is no hindrance to the distribution.

  FIG. 4 and FIG. 5 show another embodiment, and the angle of inclination is different from that in FIG. 3, and the damper plate is divided into three routes, such as a product and a product conveyed by the belt conveyor 10 and sent to the crusher. Will be allocated. In this example, the slot from the screen has two stages, and the fan-shaped base plate and the damper plate are formed separately.

  FIG. 6 is a perspective view of an essential part of the electric damper device of the present invention. Reference numeral 1 denotes a fan-shaped base plate, 2 denotes a damper plate, and 3 denotes a shaft support portion of the damper plate. 4 is a power cylinder, 5 is a pin support part. The arrows on both sides shown above the sector base plate 1 indicate the rotation range.

  As shown in FIG. 7, the rock of 150 mm-80 mm dropped downward by the screen 9 is conveyed and accumulated by the belt conveyor 11. The crushed stones of 80 mm or less that have passed through the lower screen of the screen 9 are collected as products by the belt conveyor 12. What is thrown into the damper from the screen 9 is distributed by the damper plate 2 and conveyed to the product stock line by the belt conveyor 13, conveyed from the belt conveyor 14 to the crusher 15, crushed and conveyed by the belt conveyor 16, Some are accumulated as crushed stone.

  8 and 9 show an example using a saddle type damper.

  Fan-shaped base plates 18 are provided along the side wall plates 17 on both sides that serve as crushed stone input portions, and a saddle-shaped damper 19 is fixed between the fan-shaped base plates, and a power cylinder or other drive unit is mounted on the fan-shaped base plate or the saddle-shaped damper. 20 were linked.

  In the conventional damper, as shown in FIG. 10, there is a defect that the damper becomes inoperable due to pebbles 23 sandwiched between the side wall plate 21 and the damper 22, but the present invention can prevent such a danger. .

  Since the fan-shaped base plate and the damper plate are fixed and rotate integrally, the distribution and distribution can be executed smoothly, the structure is simple, there is no clogging, and no trouble can be considered. Therefore, it is suitable for automation, and has the effect of dramatically improving the automation of the aggregate plant.

The top view of the electric damper apparatus of this invention. The top view which showed the chute | shoot part and the fan-shaped base board. The side view which shows the input part of a crushed stone, and the state of distribution. Plan view of damper plate showing another embodiment The side view which shows the input part of a crushed stone, and the state of distribution. Explanatory drawing which shows the whole damper apparatus. Explanatory drawing which shows the distribution by a damper board, the conveyance by a belt conveyor, and an accumulation state. The front view which shows the example of a saddle type damper. The side view of a vertical damper. Explanatory drawing of the conventional vertical damper.

Explanation of symbols

1: Fan base plate 2: Damper plate 3: Shaft support 4: Power cylinder
5: Pin support portion 6: Electric motor 7: Defense plate 9: Screen 17: Side wall portion 18: Fan-shaped base plate 19: Vertical damper 20: Drive portion

Claims (5)

  A damper plate fixed on the fan-shaped base plate is provided, a power cylinder that converts the rotary motion of the motor into linear motion is provided, and the end of the power cylinder is pin-supported on the upper edge of the damper plate, and the power cylinder is reciprocated. The fan-shaped base plate and damper plate rotate around the shaft support part, and the rock and crushed stone supplied from the screen and other input parts are automatically distributed and adjusted according to the desired size and distribution amount. Electric damper device.   The electric damper device according to claim 1, wherein a protection plate is provided in accordance with a screen width or a width of both side walls of the chute portion so as to cover a circumferential portion of the sector base plate.   The electric damper device according to claim 1, wherein the fan-shaped base plate has an opening degree of 120 degrees, and the opening degree is variable in a plurality of stages within 60 degrees through a power cylinder pin-supported on the damper plate by current control to the electric motor.   2. The electric damper device according to claim 1, wherein a display panel for displaying the operation of the power cylinder by the current control to the electric motor and the opening degree of the damper plate is provided for automatic control.   Fan-shaped base plates are provided along the side wall plates on both sides that serve as crushed stone input parts, and a saddle type damper is fixed between these fan-shaped base plates, and a power cylinder and other driving parts are connected to the fan-shaped base plate or the saddle type damper. An electric damper device characterized by that.

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