JP6910052B2 - Crushing machine - Google Patents

Description

The present invention relates to a crusher that crushes rocks to produce aggregate.

Conventionally, as this type of crusher, as shown in FIGS. 3 and 4, a flat plate-shaped fixed side crushing member 11 fixed to the machine frame base 10 and a state facing the fixed side crushing member 11 A movable side crushing member supported in a state where the axis 13 is eccentric with respect to a rotating shaft 12 extending horizontally in the width direction of the fixed side crushing member 11 so as to swing in contact with the fixed side crushing member 11. A vehicle including 14 and a rotation driving means 15 such as a motor for rotating a rotation shaft 12 is known (see Patent Document 1).

The fixed-side crushing member 11 and the movable-side crushing member 14 are arranged so as to decrease as the distance between them decreases downward. Further, a hopper 18 is provided to guide rocks transported from above by a transporting means 16 such as a belt conveyor toward a wide-spaced input port 17 between the upper ends of the fixed-side crushing member 11 and the movable-side crushing member 14. There is also.

Special Publication No. 62-61340

By the way, since the rocks transported by the transporting means 16 are transported in relatively small amounts, they are loaded from the charging port 17 at intervals between the fixed-side crushing member 11 and the movable-side crushing member 14, as shown in FIG. As described above, the biased paths 19, 19, 19 of the fixed-side crushing member 11 and the movable-side crushing member 14 are not guided substantially evenly in the width direction between the fixed-side crushing member 11 and the movable-side crushing member 14. It tends to be guided by (shown in 3 places each in FIG. 5). This is because of dents caused by the introduction of rocks. In that case, if the dents make it easier for the rocks to pass through, each of the biased paths 19 becomes more prominent, the dents further expand, and the rocks are sent out in a state where they cannot be sufficiently crushed, and the performance of the crusher is improved. It gets worse significantly.

The present invention has been made in view of this point, and an object of the present invention is to make rocks thrown in from a loading port substantially uniform in the width direction between the fixed-side crushing member and the movable-side crushing member. The purpose is to provide a crusher that can improve the performance of crushing rocks.

In order to achieve the above object, in the present invention, as a crusher, a flat plate-shaped fixed side crushing member fixed to the machine frame base and the fixed side crushing member are brought into contact with each other while facing the fixed side crushing member. A movable side crushing member supported in a state where the axis is eccentric with respect to a rotating shaft extending horizontally in the width direction of the fixed side crushing member so as to swing as possible, and a rotation driving means for rotating the rotating shaft. It is assumed that it is equipped with. Further, the fixed-side crushing member and the movable-side crushing member are arranged so as to decrease as the distance between the fixed-side crushing member and the movable-side crushing member decreases downward. It is equipped with a hopper that guides the upper ends of the side crushing members toward the inlets at wide intervals. Then, an amount of rocks filled in the hopper so as to substantially fill the distance between the fixed-side crushing member and the movable-side crushing member in the width direction is periodically dropped toward the inlet. Provide regular drop means . The periodic drop means is provided with a receiving member rotatably provided on the hopper via the horizontal axis and has an opening for receiving rocks transported by the transport means, and the hopper is rotatable via the horizontal axis. The receiving member is provided with a weight that faces the horizontal axis in the vertical direction. Then, the center of gravity of the receiving member is located on one side of the horizontal axis in the rotational direction when the weight is filled with rocks, and the amount of rocks received by the receiving member is filled. The weight of the amount of rocks received by the receiving member, which is located above the horizontal axis by the weight of the weight itself located below the horizontal axis until it becomes the weight. It is characterized in that the receiving member is rotated downward against the weight of the weight itself when it becomes.

Further, the receiving members are provided in pairs on the upper and lower sides so as to have openings in the outward directions in the radial direction with the horizontal axis in between, and the weights are fixed to both ends of the horizontal shaft protruding from the left and right side walls of the hopper. It is provided so as to be movable in the vertical direction by being inserted into a rod connected between the upper and lower ends of the support member extending in the vertical direction. Then, when the weight of the rocks received by one of the upper and lower receiving members is filled, the other receiving member is rotated downward as the one receiving member rotates downward. The receiving member is inverted from the bottom to the top, and the other inverted receiving member is held by the weight of each weight itself before the weight of the rocks received by the other receiving member becomes full. It may be configured to do so.

As described above, in short, the rocks transported by the transport means from above are not dropped as they are toward the inlets at wide intervals between the upper ends of the fixed side crushing member and the movable side crushing member, and the fixed side crushing member and the movable side are not dropped as they are. When the amount is filled so that the distance between the crushing members is almost filled in the width direction, the rocks are periodically dropped toward the input port so that the rocks are crushed on the fixed side and the crushing member on the movable side. It is guided almost evenly in the width direction between each other. Therefore, even if rocks are transported in relatively small amounts by the transport means, they are not directly fed into the inlet, and the path is biased in the width direction between the fixed-side crushing member and the movable-side crushing member. Rocks are not guided. As a result, even if there is a dent due to the injection of rocks, the rocks are not concentrated in the biased path and are guided almost evenly in the width direction between the fixed side crushing member and the movable side crushing member, and the dent is formed. It is possible to sufficiently improve the performance of the crusher by efficiently utilizing the entire width direction of the fixed-side crushing member and the movable-side crushing member for crushing rocks while suppressing further expansion of the rocks.

Moreover, the rocks transported by the transport means are periodically charged toward the input ports of the fixed-side crushing member and the movable-side crushing member, so that the rocks are regulated to be input to the input port. The crushing time of the fixed-side crushing member and the movable-side crushing member is reduced, the consumption of the fixed-side crushing member and the movable-side crushing member is suppressed, and the uneven wear of the fixed-side crushing member and the movable-side crushing member is also suppressed. , The setting adjustment of the fixed side crushing member and the movable side crushing member can be performed accurately.

In addition, the amount of rocks received by the receiving member rotatably provided on the hopper via the horizontal axis is filled (the distance between the fixed side crushing member and the movable side crushing member is almost filled in the width direction. By rotating the receiving member downward against the weight of the weight when the weight becomes the filled amount), the distance between the fixed side crushing member and the movable side crushing member is extended in the width direction. Rocks that are almost filled to fill the weight can be automatically dropped toward the inlet without the need for additional power.

Further, when the weight of the rocks received by one of the pair of upper and lower receiving members having an opening in the outward direction in the radial direction across the horizontal axis is filled, the one receiving member is concerned. The weight is moved from the upper side to the lower side with the downward inversion of the weight, and the weight of the other receiving member inverted from the lower side to the upper side is filled with the rocks that can be received by the other receiving member. By holding by the weight of, even while the rocks received by one receiving member are being thrown into the input port, the rocks conveyed by the transporting means are quickly received by the other receiving member. It is possible to improve the receiving efficiency of rocks by the receiving member.

It is a longitudinal side view of the crusher which concerns on embodiment of this invention. It is a vertical sectional front view of the crusher of FIG. It is a vertical sectional side view of the crusher which concerns on a conventional example. It is a vertical sectional front view of the crusher of FIG. FIG. 3 is a cross-sectional plan view of the fixed side crushing member and the movable side crushing member of the crusher of FIG. 3 as viewed from above.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows a vertical sectional side view of the crusher according to the embodiment of the present invention, and FIG. 2 shows a vertical sectional front view of the crusher.

In FIGS. 1 and 2, the crusher 1 has a flat plate-shaped fixed side crushing member 11 fixed to the machine frame base 10 and a movable state supported by the machine frame base 10 in a state of facing the fixed side crushing member 11. It includes a side crushing member 14.

The movable side crushing member 14 is supported by the machine frame base 10 via a pivot shaft 21 whose lower end portion extends horizontally in the width direction of the fixed side crushing member 11 and the movable side crushing member 14. The lower end of the movable side crushing member 14 is supported by the machine frame base 10 via a spring 22, and is separated from the lower end of the fixed side crushing member 11 by the urging force of the spring 22 to the lower end of the fixed side crushing member 11. The interval is secured. Further, the upper end of the movable side crushing member 14 is supported by the machine frame base 10 via the rotation driving means 15.

The rotary drive means 15 is movable with respect to the motor 23 attached to the machine frame base 10, the pulley 26 driven and connected to the output side pulley 24 of the motor 23 via the belt 25, and the rotary shaft 12 of the pulley 26. It is provided with an eccentric mechanism 28 that supports the shaft core 13 at the upper end of the side crushing member 14 in a slightly eccentric state. The movable side crushing member 14 is configured to swing in contact with and detachably from the fixed side crushing member 11 by the rotation driving means 15.

Further, the fixed-side crushing member 11 and the movable-side crushing member 14 are arranged so as to decrease as their distance from each other decreases downward, and have input ports 17 at a wide distance between the upper ends. Further, a belt conveyor 16 as a conveying means is provided above the crusher 1. Rocks including concrete pieces when the concrete structure is broken are conveyed to the belt conveyor 16 and dropped downward from the carry-out end (right end in FIG. 1).

Further, the machine frame base 10 guides the rocks conveyed by the belt conveyor 16 and dropped from the carry-out end toward the input port 17 at a wide distance between the upper ends of the fixed side crushing member 11 and the movable side crushing member 14. A hopper 18 is provided. The hopper 18 includes a pair of left and right side walls 181,181 facing each other in the width direction thereof. The hopper 18 includes a pair of front and rear shielding plates 182 and 182 that shield both front and rear ends of the side wall in both front and rear directions.

On the hopper 18, rocks of an amount X filled so as to substantially fill the distance between the fixed-side crushing member 11 and the movable-side crushing member 14 in the width direction are periodically dropped toward the input port 17. A regular drop means 3 is provided. The periodic dropping means 3 is provided on the hopper 18 rotatably via a horizontal shaft 31, and has a receiving member 33 having an opening 32 for receiving rocks conveyed by the belt conveyor 16 and both left and right sides of the receiving member 33. Amount X provided on the walls 181,181 and filled with rocks received by the receiving member 33 (filling the space between the fixed side crushing member 11 and the movable side crushing member 14 so as to substantially fill the width direction thereof. It is provided with a weight 34 that rotates the receiving member 33 downward against its own weight when it reaches the weight of the (amount).

Since the center of gravity of the receiving member 33 when the weight of the amount X filled with the rocks is reached is located on one side in the rotation direction (right side in FIG. 1) with respect to the horizontal axis 31, the receiving member 33 is filled with the rocks. When the weight of the quantity X is reached, the opening 32 is rotated downward on one side in the rotation direction (the direction indicated by the arrow in FIG. 1) against the weight of the weight 34.

The receiving members 33 are provided in pairs on the upper and lower sides so as to have openings 32 in the radial direction and outward directions with the horizontal shaft 31 in between. Further, the weight 34 is inserted into a rod 36 connected between the upper and lower ends of the support member 35 extending in the vertical direction fixed to both ends of the horizontal shaft 31 protruding from the left and right side walls 181,181 of the hopper 18 and in the vertical direction. It is provided so that it can be moved to. Then, when each weight 34 has a weight of an amount X filled with rocks received by one of the upper and lower receiving members 33, 33 (upper side in FIGS. 1 and 2). Amount X of rocks filled with rocks that move from upper to lower with the downward reversal of the one receiving member 33 and receive the other receiving member 33 that is inverted from the lower to the upper. It is configured to hold by its own weight until it reaches the weight of.

Further, the fixed side crushing member 11 and the movable side crushing member 14 have discharge ports 37 at narrow intervals between the lower ends thereof. Below the discharge port 37, a carry-out conveyor belt 38 for carrying out crushed rocks (aggregate) between the fixed-side crushing member 11 and the movable-side crushing member 14 is provided. Further, the machine frame base 10 is provided with a guide cover 39 for guiding the crushed aggregate discharged from the discharge port 37 to the carry-out conveyor belt 38.

Therefore, in the present embodiment, the rocks conveyed by the belt conveyor 16 from above are not dropped as they are toward the input ports 17 at wide intervals between the upper ends of the fixed side crushing member 11 and the movable side crushing member 14. When the amount X is filled so as to substantially fill the distance between the fixed-side crushing member 11 and the movable-side crushing member 14 in the width direction, the fixed-side crushing member 11 and the movable-side crushing member 14 are periodically dropped toward the input port 17. Therefore, the rocks are guided substantially evenly in the width direction between the fixed side crushing member 11 and the movable side crushing member 14.

Therefore, even if rocks are conveyed in a relatively small amount by the belt conveyor 16, they are not directly charged into the loading port 17, and the width direction between the fixed-side crushing member 11 and the movable-side crushing member 14 is wide. Rocks are not guided to a biased route. As a result, even if there is a dent due to the injection of rocks, the rocks are not concentrated in the biased path and are guided almost evenly in the width direction between the fixed side crushing member 11 and the movable side crushing member 14. The performance of the crusher 1 can be sufficiently improved by efficiently utilizing the entire width direction of the fixed-side crushing member 11 and the movable-side crushing member 14 for crushing rocks while suppressing further expansion of the dent. ..

Moreover, when the weight of the rocks received by the receiving member 33 reaches the filled amount X, the rocks are periodically charged from the belt conveyor 16 to the input port 17, so that the rocks are received by the receiving member 33. The crushing time in the fixed side crushing member 11 and the movable side crushing member 14 while the loading of rocks into the loading port 17 is restricted until the weight of the rocks is the filled amount X is reduced. The consumption of the fixed side crushing member 11 and the movable side crushing member 14 is suppressed, and the uneven wear of the fixed side crushing member 11 and the movable side crushing member 14 is also suppressed, and the setting of the fixed side crushing member 11 and the movable side crushing member 14 is suppressed. The adjustment can be made accurately.

Further, when the weight of the rocks received by the receiving member 33 rotatably provided on the hopper 18 via the horizontal shaft 31 reaches the filled amount X, the receiving member 33 opposes the weight of the weight 34. Rotates downward, so a separate power is required for rocks having a weight of an amount X filled so as to substantially fill the distance between the fixed-side crushing member 11 and the movable-side crushing member 14 in the width direction. Instead, it can be automatically dropped toward the slot 17 on a regular basis.

Further, the weight is the amount X filled with the rocks received by one of the pair of upper and lower receiving members 33, 33 having an opening 32 in the outward direction in the radial direction across the horizontal axis 31. Sometimes, the weight 34 is moved from the upper side to the lower side with the downward reversal of the one receiving member 33, and the rocks that can receive the other receiving member 33 that has been reversed from the lower side to the upper side by the other receiving member 33. Since the weight 34 is held by the weight of the weight 34 itself until the weight of the filled amount X is reached, even while the rocks received by one of the receiving members 33 are being thrown into the loading port 17. The rocks conveyed by the belt conveyor 16 can be quickly received by the other receiving member 33, and the receiving efficiency of the rocks by the receiving member 33 can be improved.

The present invention is not limited to the above-described embodiment, and includes various other modifications. For example, in the embodiment described above, along with receiving the member 33 across the horizontal axis 31 has an opening 32 radially outwardly facing provided on upper and lower, are provided so as to be movable weight in the vertical direction, a single The receiving member is provided on one side in the diametrical direction, and the weight is provided on the other side in the diametrical direction. At the same time as dropping, the weight of the weight may cause the weight to return to the original position repeatedly.

10 Machine frame 11 Fixed side crushing member 12 Rotating shaft 13 Axis center 14 Moving side crushing member 15 Rotating driving means 16 Conveyor belt (conveying means)
17 Input port 18 Hopper
181 Left and right side walls 3 Periodic drop means 31 Horizontal axis 32 Opening 33 Receiving member 34 Weight
35 Support member
36 Rod X Amount of rocks filled so as to almost fill the gap between the fixed side crushing member and the movable side crushing member in the width direction.

Claims (2)

A flat plate-shaped fixed side crushing member fixed to the machine frame,
Supported in a state where the axis is eccentric with respect to a rotation axis that extends horizontally in the width direction of the fixed-side crushing member so as to swing in contact with the fixed-side crushing member while facing the fixed-side crushing member. With the movable side crushing member
A rotation driving means for rotating the rotation shaft and
With
The fixed-side crushing member and the movable-side crushing member are arranged so as to decrease as the distance between them decreases downward.
It is equipped with a hopper that guides rocks transported by the transport means from above toward the fixed-side crushing member and the upper portion of the movable-side crushing member at wide intervals.
The hopper is periodically dropped with an amount of rocks filled so as to substantially fill the space between the fixed-side crushing member and the movable-side crushing member in the width direction toward the inlet. A means of falling is provided ,
The regular drop means
A receiving member that is rotatably provided on the hopper via a horizontal axis and has an opening for receiving rocks conveyed by the conveying means.
The hopper is rotatably provided via the horizontal axis, and the receiving member includes a weight that faces the horizontal axis in the vertical direction.
The center of gravity of the receiving member is located on one side of the horizontal axis in the rotational direction when the weight is filled with rocks, and the weight of the receiving member is filled with rocks. By the weight of the weight itself located below the horizontal axis until it becomes A crusher characterized in that the receiving member is sometimes rotated downward against the weight of the weight itself. The receiving members are provided in pairs on the upper and lower sides so as to have openings in the radial direction and outward directions with the horizontal axis in between.
The weight is provided so as to be movable in the vertical direction by being inserted into a rod connected between the upper and lower ends of a support member extending in the vertical direction fixed to both ends of a horizontal axis protruding from the left and right side walls of the hopper. ,
Each of the weights is accompanied by a downward reversal of one of the upper and lower receiving members when the weight of the rocks received by one of the upper receiving members is filled. The other receiving member is moved from the upper side to the lower side in a state of being inverted upward, and the weight of the other receiving member inverted upward is filled with rocks that can be received by the other receiving member. When the weight of the rocks received by one of the upper and lower receiving members, which is configured to be held by the weight of each weight itself, is filled. Along with the downward reversal of the one receiving member, the rocks move upward and downward together with the other receiving member, and the other reversing receiving member is filled with rocks that can be received by the other receiving member. The crusher according to claim 1, which is configured to be held by the weight of each weight itself until it reaches the weight of the weight.

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