JPS6140355Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a closing plate at the inlet end of a rotating drum of a crushed stone processing device which comprises a rotating drum that is driven to rotate in one direction and has multiple scraping blades on its inner surface, a rotor that is disposed inside the rotating drum and driven to rotate in the opposite direction to the rotating drum and has multiple retaining blades on its outer circumferential surface, and a rotating shaft that drives the rotor to rotate and protrudes outside from both ends of the rotating drum.

As this type of crushed stone processing equipment,
No. 42981, Jitko No. 56-13013, Jitko No. 56-13014
Those described in publications such as No. 43404, Utility Model No. 56-43404, and 46841 Utility Model 56-46 are known. Each of these includes a rotating drum that is rotationally driven in one direction and has a plurality of scraping blades on its inner circumferential surface;
A rotor is disposed inside the rotating drum, is driven to rotate in the opposite direction to the rotating drum, and has a plurality of holding blades on its outer peripheral surface; It is equipped with a rotating shaft. The operation of these crushed stone processing devices is to rotate a rotating drum and a rotor in opposite directions, to feed materials to be treated such as crushed stones and slag from one end of the rotating drum, and to scrape up the materials into blades. As a result, the objects to be processed are raked upward, and the objects to be processed fall down due to their own weight, or are pulled down by the holding blades, and the objects to be processed, such as crushed stones held in the valleys of both blades, polish each other. By crushing each other, corners and deposits are removed and high-quality aggregate is obtained.
In such devices, depending on the particle size, hardness, shape, and presence of foreign substances of the material to be processed fed into the rotating drum, as well as the amount fed, the rotor may be positioned at a fixed position within the rotating drum. Since a force that tends to destroy the rotor and rotating shaft acts on the rotor, it is necessary to ensure that the rotor can escape. Therefore, as in the idea described in Japanese Utility Model Publication No. 56-13012, the position of the bearing that supports the rotating shaft of the rotor can be adjusted vertically and horizontally parallel to the axis of the rotor. A device was devised so that the rotor would automatically escape when activated. Although these efforts yielded some results, new problems arose. In other words, since the rotating shaft of the rotor protrudes outward from both ends of the rotating drum and is supported by bearings, a gap is inevitably created in the plate that closes the inlet end of the rotating drum (at the rotating shaft), and through this gap, the There was a problem that the processed material would spill out.

The present invention was devised in view of these circumstances, and is a closing plate at the inlet end of the rotating drum of a stone crushing device that does not allow the material to be processed to leak and does not impair the movement of the rotating shaft of the rotor. The purpose is to provide the following.

Preferred embodiments of the present invention will be described below with reference to the drawings.

1 and 2, a rotor 3 has a plurality of holding blades 4 on its outer circumferential surface inside a rotating drum 1 having a plurality of scraping blades 2 on its inner circumferential surface.
is arranged eccentrically at the lower part, and a rotating shaft 5 of this rotor 3 passes through the inside of the rotating drum 1 and protrudes from both ends thereof, and both ends of this rotating shaft 5 are supported by bearing mechanisms 6, 6. The rotating drum 1 is formed into a hollow cylindrical shape, and is rotatably supported on a base 7 in a lying state. Further, an annular gear 8 is fixed at the center of the outer circumference of the rotating drum 1, and guide rings 9, 9 are fixed near both ends of the outer circumference, respectively. The rotating drum 1 is supported on a base 7 via a pair of guide rollers 10, 10 so as to be able to rotate smoothly. A driving gear 12 of a motor 11 is meshed with the annular gear 8, and the rotation of the motor 11 drives the rotary drum 1 to rotate in one direction. When the rotational speed of the rotary drum 1 is set to 5 to 100 rpm, the rotor 3 is set to about 20 to 1000 rpm, and the rotor 3 always rotates faster.

The bearing mechanism 6 is attached to the support frame 13,
It is constructed as shown in FIGS. 3 to 6.
That is, female screw members 1 are attached to both ends of the upper surface of the support frame 13.
4, 14 are attached, and these female screw members 14,
Adjustment bolts 15, 15 are screwed into 14.
Further, long holes 16, 16 are bored in the support frame 13,
Elongated holes 16' of different sizes are bored between these elongated holes 16, 16 (see FIG. 4). A base plate 17 is attached to these elongated holes 16, 16 with fasteners (bolts and nuts) 18, 18 so as to be movable left and right. The tips of the adjustment bolts 15, 15 are brought into contact with both left and right ends of the base plate 17 to restrict the left and right movement of the base plate 17. Further, a gate-shaped frame 19 is fixed on this base plate 17, and guide rails 2 are placed on both sides of this frame 19.
0 and 20 are attached, and a scale 21 is attached to either side. Slider 23 having bearings 22 on guide rails 20, 20
is installed. This slider 23 is connected to a bearing box 2 that supports the bearing 22, as shown in FIG.
4 has grooves 25, 25 on both sides thereof, and has an insertion hole 26 and a hole 27 in its upper part. The grooves 25, 25 of this slider 23 are formed in the guide rail 2.
0,20 in your mouth, and insert the hanging rod 2 into the insertion hole 26.
8 is inserted through the hole 27, and a means for preventing it from coming off is provided at the hole 27. The upper end of this hanging rod 28 is connected to the frame 19
The slider 23 exits upward through the hole 29 at the top of the slider 23, passes through the receiver 30, and is screwed onto a nut 31 to prevent the slider 23 from descending. The hanging rod 28 is loosely inserted into the hole 29 and is free to move upward.
The tip of a cylinder 32 is brought into contact with the lower surface of the slider 23, and this cylinder 32 is connected to the elongated hole 16'.
The piston 32' is moved up or down by adjusting oil pressure, air pressure, etc. to move the slider 23 up and down. In addition, the support frame 13
A scale 33 is also attached to the frame 19 so that the amount of left and right sliding of the frame 19 can be measured.

As shown in FIGS. 1 and 6, the rotation mechanism of the rotor 3 includes a chain sprocket 34 fixed to one end of the rotating shaft 5, and a small-diameter sprocket 34 mounted on the chain sprocket 34 and a support 35. A chain 37 is stretched between the chain sprocket 36 and the chain sprocket 36. In addition, the chain sprocket 38 and the support base 3 are fixed coaxially with the chain sprocket 36.
A chain 41 is also stretched between a chain sprocket 40 of a motor 39 attached to the side of the motor 5. The rotating shaft 5 and the shaft 42 of the chain sprocket 36 on the support 35 are located on substantially the same horizontal plane, so that foreign matter may not get into the rotating drum 1 or the rotor 3 may
When strong pressure is applied to the holding blades 4 of the rotary shaft 5, the rotating shaft 5 can move vertically within a predetermined range. Furthermore, the abutment 35 itself is
In the figure, it is installed on the base 7 so as to be able to slide left and right, and is positioned at a predetermined position by adjustment screws 43, 43 on both sides.

In addition, the chains 37, 41 are replaced with belts, and the chain sprockets 34, 36, 38, 4 are replaced with belts.
It is also possible to replace 0 with a pulley.

Furthermore, in FIG. 1, one end of the rotating drum 1 is an inlet end 1a, the other end is an outlet end 1b, and a closing plate 50, which constitutes the essential part of the present invention, is attached to the inlet end 1a. A charging chute 44 is attached to this closing plate 50. Outlet end 1b
is the opening at the other end of the rotating drum 1, and a ring-shaped flange (not shown) of a predetermined height is provided on the inner periphery of the opening, and processed crushed stone, etc. is temporarily stored at this flange, and the overflow is It is also possible to discharge the amount to the outside of the rotary drum 1 by the amount.

The details of this closing plate 50 will be explained below based on the drawings from FIG. 7 onwards.

7 and 8, an input port 52 for attaching the input chute 44 and an opening 53 through which the rotating shaft 5 is inserted are formed in a disc 51 attached to the inlet end 1a of the rotating drum 1, respectively. . A first frame 54 is fixed to the disc 51 so as to surround the opening 53, and a second frame 55 is attached to the first frame 54 so as to be movable from side to side.
A movable plate 56, through which the rotating shaft 5 is inserted, is attached to the second frame 55 so as to be movable up and down.
The first frame 54 has both side parts 54a, 54a.
and a lower receiving pocket part 54b,
It is fixed to the disk 51 by means such as welding or bolt tightening, and four bolts 54c are installed on both sides 54a, 54a. The second frame 55 has raised parts 55a, 55a at the center, side plates 55b,
Slits 55c, 55 parallel to each other in 55b, respectively.
c is formed, and a plate 55d is attached so as to straddle the rising parts 55a, 55a. Bolts 54c, 54c are inserted through the slits 55c, 55c, and springs 54d, 54 are attached to the bolts 54c, 54c protruding from the slits 55c, 55c.
d is inserted and nuts 54e, 54e are tightened. As a result, the second frame 55 has a slit 55
The presence of c and 55c allows it to move left and right. A moving plate 56 is provided between the rising parts 55a, 55a.
is positioned, and the upper part of the moving plate 56 is the plate 55
It is pressed by a pressing tool 57 provided at d. The moving plate 56 is composed of a rubber plate 56a and an iron plate 56b, and a collar (not shown) is attached to a hole 56c of the rubber plate 56a, and the rotating shaft 5 is inserted through this collar. Details of the movable plate 56 located between the raised parts 55a, 55a are as shown in FIG.

The disk 51 is attached to the inlet end 1a in the first
As shown in FIG. 0, a ring-shaped rubber 51a is attached to the back side of the disk 51, and this rubber 51a is attached to a ring body 1c protruding around the inlet end 1a of the rotary drum 1.
As the pressing means, a pressing tool 58 is interposed between the disk 51 and the frame 19.
This disk 51 is stationary, and when the rotary drum 1 rotates, the ring body 1c rotates while being in contact with the rubber 51a.

The stone crushing, etc. processing apparatus in which the closing plate 50 of this invention is brought into pressure contact with the inlet end 1a of the rotary drum 1 operates as follows. That is, when the rotating drum 1 is rotated in the direction of the arrow in FIG. 2 and the rotor 3 is rotated in the opposite direction, crushed stones and the like are introduced into the rotating drum 1 through the input chute 44 and the input port 52 of the disc 51. Crushed stone and the like are mainly processed in the space shown in FIG. 2A, and are discharged from the outlet end 1b as high-quality aggregate with rounded corners. This outlet end 1b
It may also be configured such that a wire mesh tube is attached to the tube to separate sand and aggregate. When this device is in operation, the inlet end 1a
The closing plate 50 which is pressed against the rotating drum 1 does not rotate together with the rotary drum 1 and is always immobile, so that the material to be treated such as crushed stone does not leak out, and when an excessive force is applied to the rotor 3 and the rotating shaft 5. As the rotating shaft 5 moves, the movable plate 56 and the second frame 55 move vertically and horizontally.

As explained above, according to the present invention, the structure of the closing plate includes (a) an inlet for blocking the inlet end and for introducing crushed stones, etc. into the rotating drum, and an opening from which the rotating shaft protrudes; (b) A second plate that surrounds the opening of the disc and is fixed to the disc so as not to block the opening.
A first frame that serves as a guide rail for horizontal movement of the frame; (c) a second frame that is attached to the first frame so as to be movable from side to side and has an opening in the center and serves as a guide rail for vertical movement of the moving plate; (d) a second frame It consists of a moving plate that is attached to the frame so that it can move up and down, and has a hole through which the rotating shaft is rotatably inserted, so crushed stones, etc. that are put into the rotating drum as in the past, leak from the inlet end. Moreover, when an unreasonable force acts on the rotating shaft and escapes upward, the movable plate does not move upward and prevent the movement of the rotating shaft. Also, when changing the position of the rotor within the rotating drum depending on the type and size of the workpiece, the second
It can be changed very easily by moving the frame and moving plate.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the entire crushing stone processing equipment, Fig. 2 is a schematic cross-sectional view of the center (- line) of Fig. 1, Fig. 3 is a front view of the bearing mechanism, and Fig. 4 is Fig. 3 -
5 is a perspective view of the slider, FIG. 6 is a sectional view taken along the line in FIG. 1, FIG. 7 is a front view of the blocking plate, and FIG. 8 is an exploded perspective view of the blocking plate FIG. 9 is a sectional view taken along the line of FIG. 7, and FIG. 10 is a sectional view showing a state in which the closing plate and the inlet end of the rotating drum are in pressure contact. 1... Rotating drum, 1a... Inlet end, 1b...
Outlet end, 2... Raising blade, 3... Rotor, 4
...Holding blade, 5...Rotating shaft, 6...Bearing mechanism,
50... Closure plate, 51... Disc, 52... Inlet, 53... Opening, 54... First frame, 5
5...Second frame, 56...Moving board.

Claims (1)

[Scope of Claim for Utility Model Registration] A rotating drum with scraping blades attached to its inner peripheral surface, a roller with holding blades attached to its outer peripheral surface, and a rotating shaft of this roller, where the rotating shaft is located at both ends of the rotating drum. A blocking plate that protrudes outside from the opening, that is, the inlet end and the outlet end, is supported by a bearing mechanism, and that the bearing mechanism closes the inlet end of the rotating drum of the stone crushing, etc. This blocking plate is composed of the following (a) to (d) and is pressed against the inlet end of the rotating drum. A disc having an inlet for charging crushed stones, etc. into the rotating drum, and an opening from which a rotating shaft projects; (c) A first frame that is fixed to the circular plate and serves as a guide rail for the horizontal movement of the second frame; (c) A second frame that is attached to the first frame so as to be movable from side to side, has an opening in the center and serves as a guide rail for the vertical movement of the movable plate; a frame; (d) a movable plate that is attached to the second frame so as to be movable up and down, and has a hole through which a rotating shaft is rotatably inserted;