KR20100098289A - Power transmission mechanism and crusher - Google Patents

Abstract

PURPOSE: A power transmission machine and a crushing apparatus are provided to suppress power transmission from a power transmission shaft to a target shaft based on the torque of the target shaft. CONSTITUTION: A circular friction plate and a pressing plate are arranged on the circumference of a target shaft for power transmission(37). Either of the friction plate or the pressing plate is drive by power transmitted from a power transmitting shaft(34). Non-driven plate is driven by the friction force between the friction plate and the pressing plate in order to transmit power to the target shift.

Description

Power transmission mechanism and shredding device {POWER TRANSMISSION MECHANISM AND CRUSHER}

The present invention relates to a power transmission mechanism and a shredding device.

Conventionally, a shredding device includes a shredding processing unit comprising a rotary blade fixed around a shredding rotor rotating around a predetermined shaft center by the power of the driver, and a fixed blade disposed oppositely along the rotation axis of the shredding rotor. Is designed to shred crushed products such as telephone products, construction waste, and plastics.

In such a shredding device, foreign matters of hardness or size that cannot be broken by the rotary blade and the fixed blade of the shredding treatment part may be mixed in the shredded material. When such foreign matter reaches the shredding part, the rotary blade and the fixed blade may be broken or the actuator may be broken. Excessive load was applied to the power transmission mechanism such as a transmission mechanism that transfers power to the crushing rotor from the drive, and the power transmission mechanism and the driver may be damaged.

Therefore, it is considered to provide a torque limiter in the coupling portion connecting the crushing rotor and the power transmission mechanism so as not to transmit excessive load from the crushing rotor to the power transmission mechanism or the driver. For example, the torque limiter which connected the 1st member provided in the one end of the rotating shaft of a crushing rotor, and the 2nd member provided in the output shaft of the power of a power transmission mechanism with a some pin is considered.

The torque limiter is such that when the difference between the output shaft of the power transmission mechanism and the rotational shaft of the crushing rotor becomes greater than the shear strength of the pin, the pin is broken so that power is not transmitted from the output shaft of the power transmission mechanism to the rotating shaft of the crushing rotor. It is composed.

By providing such a torque limiter, it is possible to prevent damage to the rotary blades, the fixed blades, the power transmission mechanism, the driver, etc. due to the mixing of foreign matter into the to-be-damaged object, but in order to recover, the first member and the second member are reconnected with new pins. It is troublesome to do the work.

Moreover, as shown in FIG. 19, patent document 1 cooperates with the rotary blade 91 and the rotary blade 91 fixed around the crushing rotor 90 which rotates around a predetermined shaft center by the power of a driver. The fixed blade 92 supported so that the object to be sheared and rotated at an axis parallel to the axis of the crushing rotor 90, and a state in which the limit torque in which the fixed blade 92 is arbitrarily set is not applied. Is provided with a torque limiter 93 for holding and holding the stationary blade 92 and rotating the receiving blade when the limit torque is applied, and the path between the rotary blade 91 and the stationary blade 92 is sheared. In the case where foreign matter is caught, a shredding device is proposed in which the fixed blade 92 is rotated to avoid an excessive load.

The torque limiter 93 includes a clutch plate 94 fixed integrally with the fixed blade 92, a clutch plate 95 press-contacted with the clutch plate 94, and a plate spring for press-contacting the clutch plates 94 and 95. (96) and the adjusting nut (97) for adjusting the pressing force by the disc spring (96), and the two clutch plates (94, 95) are relatively rotated in accordance with the fastening state of the adjusting nut (97) It is configured to adjust the limit torque.

When the threshold torque is set to a value approximately equal to the maximum torque required for the front end of the crushed object, the load applied to the fixed blade is the torque applied in the state where the crushed object is sheared by the rotary blade 91 and the fixed blade 92. Since the limit torque of the limiter 93 is not exceeded, the posture of the fixed blade does not collapse.

In the case where foreign matter that cannot be sheared by the rotary blade 91 and the fixed blade 92 is caught between them, an excessive load exceeding the limit torque of the torque limiter 93 is applied to the fixed blade 92. The blade 92 rotates to be pushed against the rotary blade 91 to avoid its load, and at that time, the driver is stopped to stop the rotation of the crushing rotor and to avoid the damage of the rotary blade 91 and the fixed blade 92. will be.

Japanese Patent Publication No. 2002-79129

However, in the crushing apparatus described in Patent Document 1 described above, when a small foreign material that cannot be sheared by the rotary blade 91 and the fixed blade 92 is sandwiched between them, the fixed blade 92 is attached to the rotary blade 91. The load can be avoided by being rotated to be pushed, but it is complicated because it is necessary to recover the rotated fixed blade 92 to its original position.

Moreover, if it is a large foreign material, even if the fixed blade 92 rotates, it may be in the state stuck between the rotary blade 91 and the fixed blade 92. At this time, even if the driver is stopped, the crushing rotor will continue to rotate for a while due to inertia, so that an excessive load is applied to the rotating shaft of the crushing rotor, the power transmission mechanism of the driver, and the driver itself, which may damage the power transmission mechanism or the driver. There was.

In view of the above-described problems, the present invention, when the required torque on the power transmission shaft side is more than the set torque, the friction plate and the pressure plate of the torque limiter is slipped, the power is transferred to the power transmission shaft from the power transmission shaft, the transmission mechanism Alternatively, a power transmission mechanism that avoids excessive load on the driver and damages it, and transfers power from the power transmission shaft to the power transmission shaft when the required torque on the power transmission shaft side is less than the set torque, thereby eliminating the work of restoring the torque limiter. And a shredding device in which power is transmitted by a power transmission mechanism.

In order to achieve the above object, a first feature configuration of the power transmission mechanism according to the present invention is a power transmission mechanism having a transmission mechanism for transmitting power from a driver to a driven device, wherein the annular friction plate and the pressure plate are powered. It is arranged around the shaft center of the transmission shaft, and one of the friction plate and the pressure plate is rotationally driven by the transmission power from the power transmission shaft, and the other is rotationally driven by the frictional force of both plates to power the power transmission shaft. When the required torque on the power transmission shaft side is greater than or equal to the set torque, the friction plate and the pressure plate slide, and when the required torque on the power transmission shaft side is less than the set torque, the friction plate and the pressure plate rotate integrally to prevent the power plate. Pressing mechanism for pressing the pressure plate to the friction plate so that power is transmitted to the transmission shaft In the point that the ruthless torque limiter is provided between the transmission device or the transmission device and the target sync.

According to the above constitution, since the torque limiter is provided between the transmission mechanism or the transmission mechanism and the driven member, when the required torque on the power transmission shaft side is equal to or higher than the set torque, the friction plate and the pressure plate slide, and power is transferred from the driver to the driven member. Since it becomes non-delivery, the damage of a transmission mechanism or a driver by an abnormal load can be avoided beforehand. When the required torque on the power transmission shaft side is less than the set torque, the friction plate and the pressure plate rotate integrally to transfer power from the driver to the driven member.

In this way, the non-transmission and transmission of power from the driver to the driven member can be automatically switched based on whether the requested torque on the power transmission shaft side is greater than or equal to the set torque or less than the set torque. Further, by changing the pressure contact force between the pressure plate and the friction plate by the pressure mechanism, it is possible to easily adjust the set torque when the pressure plate and the friction plate are slipped, that is, the power from the driver to the driven member becomes non-transmitted.

The second feature configuration is in addition to the above-described first feature configuration, and includes: an input shaft to which power from the driver is transmitted; an output shaft to transmit power to the driven member; and a gear mechanism to transmit power from the input shaft to the output shaft. The gear of the output end is provided on the output shaft of the mechanism, and a friction plate and a pressure plate are arranged around the shaft center of the output shaft, and power is transmitted from the gear of the output end to either the friction plate or the pressure plate through the first engagement portion. It is comprised so that a power may be transmitted to a support part which rotates integrally with an output shaft from the other side through a 2nd engagement part.

According to the above configuration, the power from the driver is transmitted from the gear of the output end to the one of the friction plate or the pressure plate through the first engagement portion, and from the other through the second engagement portion to the support portion which rotates integrally with the output shaft. Is passed. When the required torque on the output shaft side as the power transmission shaft exceeds the set torque, the friction plate and the pressure plate slide and the power is transferred from the driver to the driven machine, thereby preventing damage to the gear mechanism of the transmission mechanism or the driver due to an abnormal load. It can be avoided beforehand.

In addition to the above-described second feature, the third feature includes a friction plate and a pressure plate in the annular recess formed on the gear side of the output end, and the inner circumference of the friction plate or the pressure plate and the side wall of the annular recess. The support part and the output shaft which are engaged by this 1st engagement part and rotate integrally with the other are in the point which is engaged by the 2nd engagement part.

According to the above configuration, the friction plate and the pressure plate are accommodated in the annular recess formed on the gear side of the output end, and the inner circumference of either the friction plate or the pressure plate and the side wall of the annular recess are engaged by the first engaging portion, and the other Since the support part and the output shaft which rotate integrally with the side are engaged by the 2nd engagement part, the transmission mechanism can be miniaturized.

The fourth feature is that, in addition to the above-described second feature, a plurality of friction plates and a pressure plate are alternately arranged, and a pressing mechanism for press-contacting the pressure plate and the friction plate is provided on the support portion.

According to the above configuration, by arranging a plurality of friction plates and pressure plates alternately, the area of the contact surface of the friction plate and the pressure plate is increased, and the torque equal to the limit torque due to the pressure contact between the pair of large diameter friction plates and the pressure plate. Since the torque limiter can be compactly configured, the transmission mechanism can be miniaturized.

In addition to the above-described third feature, the fifth feature includes a cooling passage on the output shaft for supplying cooling oil to the contact surface between the friction plate and the pressure plate through the gap between the inner sidewall of the annular recess and the support. In addition, the present invention provides an oil pump for circulating and supplying lubricating oil inside the casing of the transmission mechanism through the cooling flow passage.

According to the above configuration, a cooling flow path is formed on the output shaft to supply cooling oil to the contact surface between the friction plate and the pressurizing plate through the gap between the inner sidewall of the annular recess and the support portion, so that the piping may be provided inside the casing of the transmission mechanism. Since there is no need, the transmission mechanism can be miniaturized and the cost can be reduced. In addition, when the oil pump is driven by the power from the driver, it is unnecessary to further include a driver for driving the oil pump, thereby further reducing the cost.

The sixth feature configuration includes an input shaft and an output shaft in a casing formed so that the upper edge portion and the lower edge portion are symmetrical with respect to the center line in addition to the above-described second feature configuration, and the axis of the input shaft and the output shaft is formed on the center line. And the transmission mechanism is configured such that power from the driver is transmitted from one side of the casing to the input shaft, and power from the other side of the casing is transmitted to the driven member, and the transmission mechanism is provided at both the upper edge portion and the lower edge portion. It is a point provided with the attachment part fixed to a support body.

According to the above configuration, since the upper and lower edge portions of the casing are formed to be symmetrical with respect to the center line, the upper and lower edge portions are provided with attachment portions for fixing the transmission mechanism to the support. Either side of the part can be fixed to the support. The input shaft and the output shaft are accommodated in a casing formed so that the upper edge and the lower edge are symmetrical with respect to the center line, and the shafts of the input shaft and the output shaft are positioned on the center line so that power from the driver is transmitted from one side of the casing to the input shaft. Since the transmission mechanism is configured to transmit the power of the output shaft from the other side of the casing to the driven member, the degree of freedom when fixing the transmission mechanism to the support is increased, thereby improving convenience of use.

The seventh feature configuration is that in addition to the above-described second feature configuration, the output shaft is constituted by a hollow shaft supporting and supporting the rotating shaft of the driven member.

According to the above configuration, since the output shaft is composed of a hollow shaft that penetrates and supports the rotating shaft of the driven member, centering of the output shaft and the rotating shaft of the driven member can be easily performed by inserting one end side of the rotating shaft of the driven member. Since the rotary shaft can be supported by the bearing of the output shaft, the number of bearings can be reduced.

The eighth feature configuration is in addition to any of the first to seventh features described above, and the predetermined contact state between the pressure plate and the friction plate is maintained after the pressing force of the pressure plate and the friction plate is released by the pressure mechanism. The point is that it is configured to be.

According to the above arrangement, when the power transmission shaft is manually rotated due to maintenance work or the like, even if the pressure contact force between the pressure plate and the friction plate is released by the pressure mechanism, a predetermined contact state between the pressure plate and the friction plate is maintained, so that torque is maintained. By manually rotating the small power transmission shaft, the power transmission shaft can be easily rotated.

In addition to the above-described first feature configuration, the ninth feature configuration includes a state detection unit that detects the operation of the torque limiter, and a control device for stopping the driver when it is determined that the torque limiter has been operated based on a signal from the state detection unit. It is located in the point.

As described above, in the power transmission mechanism, when the requested torque on the power-transmitted side is equal to or higher than the set torque, the friction plate and the pressure plate slide, so that the power from the driver to the driven member becomes non-transmitted, and the requested torque on the power-transmitted side is increased. When the torque falls below the set torque, the friction plate and the pressure plate rotate integrally to transmit power to the power transmission shaft. However, if the time required for the power-transfer side to be greater than or equal to the set torque is short and such a state is repeated, there is a risk of damaging the driven side.

Moreover, even if the requested torque on the power-transfer side becomes equal to or higher than the set torque at which the torque limiter operates, and then becomes lower than the set torque thereafter, any abnormal state generated on the driven side may continue. In such a case, if the transmission of power from the driver to the driven member is restored, power may not be properly transmitted, which may damage the driver or the transmission mechanism.

Therefore, if it is determined that the torque limiter has been operated based on the signal from the state detection unit, the control device can then avoid the damage on the driven side by repeating such an abnormal state by stopping the driver thereafter.

For example, when the driven device is a crushing device, a foreign material is passed between the rotary blade and the fixed blade so that the required torque on the power-transfer side becomes longer than the set torque, which is very short and several tens of milliseconds. When the condition is cleared, the torque limiter automatically returns to the power transmission state.

However, if a large foreign material or a plurality of foreign materials exist, the foreign material may be inherited several times and the rotary blade or the fixed blade may be broken. In addition, the required torque on the power-transmitting side becomes equal to or higher than the set torque at the instant of the foreign material being bitten between the rotary blade and the fixed blade. Even in this case, if the required torque on the power-transfer side is less than the set torque, the torque limiter may be automatically returned to the power transmission state, and the driver and the transmission mechanism may be damaged.

Even in such a case, the control device stops the driver when it is determined that the torque limiter has been operated on the basis of a signal from the state detection unit that detects the operation of the torque limiter. Therefore, the supply of power to the crushing rotor is stopped and the drive or transmission mechanism is stopped. It can prevent damage.

The tenth feature is a power transmission mechanism having a transmission mechanism for transmitting power from a driver to a driven body, wherein an annular friction plate and a pressure plate are arranged around an axis of the power transmission shaft, Either of the friction plate and the pressure plate is rotationally driven by the transmission power, and the other is rotationally driven by the frictional force of both plates to transmit power to the power transmission shaft, and the required torque on the power transmission shaft side is greater than or equal to the set torque. In this case, the friction plate and the pressure plate slide, and when the required torque on the power transmission shaft side is less than the set torque, the pressure plate is pressed against the friction plate so that the friction plate and the pressure plate rotate integrally to transmit power to the power transmission shaft. The pressure contact to the pressure plate and the friction plate by the pressure mechanism to be It is in this respect that in the pressing release state the release pressing plate and a torque limiter provided on the friction plate pressure mechanism that imparts predetermined pressing force is provided between the transmission device or the transmission device and the target sync.

According to the above constitution, since the torque limiter is provided between the transmission mechanism or the transmission mechanism and the driven member, when the required torque on the power transmission shaft side is equal to or higher than the set torque, the friction plate and the pressure plate slide, and power is transferred from the driver to the driven member. Since it becomes non-delivery, the damage of a transmission mechanism or a driver by an abnormal load can be avoided beforehand. When the required torque on the power transmission shaft side is less than the set torque, the friction plate and the pressure plate rotate integrally to transfer power from the driver to the driven member.

In this way, the non-transmission and transmission of power from the driver to the driven member can be automatically switched based on whether the required torque on the power transmission shaft side is greater than or equal to the set torque or less than the set torque, thereby eliminating the need for complicated recovery work. Further, by changing the pressure contact force between the pressure plate and the friction plate by the pressure mechanism, it is possible to easily adjust the set torque when the pressure plate and the friction plate are slipped, that is, the power from the driver to the driven member becomes non-transmitted.

Further, even when the power transmission shaft is manually rotated due to maintenance work or the like, even if the pressure release state of the pressure plate and the friction plate is released by the pressure mechanism, the pressure mechanism and the friction plate have a predetermined pressure force. Since the given contact state is maintained, the rotation of the power transmission shaft can be transmitted to the power transmission shaft side.

In addition to the tenth feature described above, the eleventh feature is that the predetermined pressing force applied to the pressing plate and the friction plate by the pressing mechanism is less than the pressing force by the pressing mechanism, This is because the pressure is set above the minimum pressure force required to transmit power to the power transmission shaft side.

According to the above configuration, the predetermined pressing force applied to the pressing plate and the friction plate by the pressing mechanism is less than the pressing force by the pressing mechanism, and is required to transmit the power on the power transmission shaft side to the power transfer shaft side in the depressurized state. Since it is set above the minimum crimping force, it is possible to reliably transmit a relatively small force, for example, the rotational force of the power transmission shaft by manual transmission to the power transmission shaft side.

The twelfth feature configuration is in addition to the tenth feature described above, and includes: an input shaft to which power is transmitted from the driver; an output shaft to transmit power to the driven member; and a gear mechanism configured to transmit power from the input shaft to the output shaft. The gear of the output end is provided on the output shaft of the mechanism, and a friction plate and a pressure plate are arranged around the shaft center of the output shaft, and power is transmitted from the gear of the output end to either the friction plate or the pressure plate through the first engagement portion. It is comprised so that a power may be transmitted to the support part which rotates integrally with an output shaft from the other side through a 2nd engagement part, and a pressurizing mechanism and a press mechanism are provided in a support part.

According to the above configuration, the power from the driver is transmitted from the gear of the output end to the one of the friction plate or the pressure plate through the first engagement portion, and from the other side through the second engagement portion to the support portion which rotates integrally with the output shaft. Therefore, when the required torque on the output shaft side as the power transmission shaft is equal to or higher than the set torque, the friction plate and the pressure plate slide and power is transferred from the driver to the driven member so that the gear mechanism of the transmission mechanism due to an abnormal load Damage to the driver can be avoided beforehand.

Moreover, since the pressurizing mechanism which gives a press contact force to a pressurizing plate and a friction plate, and the pressurizing mechanism which gives a predetermined pressing force to a pressurizing plate and a friction plate are provided in a support part, a transmission mechanism can be miniaturized.

The thirteenth feature configuration is in addition to the twelfth feature configuration described above, wherein a pressing mechanism is provided between the pressing member and the support portion for pressing the pressing plate and the friction plate by the pressing mechanism, and the pressing mechanism is a pressing member by the pressing mechanism. It is a point which is comprised so that a predetermined pressing force may be given to a press member in the press release state in which the pressure welding force of the is released.

According to the said structure, predetermined pressing force is given to the pressing member by the pressing mechanism in the state in which the pressing force to the pressing member by the pressing mechanism was released. Both the pressing mechanism and the pressing mechanism can press or press the pressing plate and the friction plate through a common member such as the pressing member, so that a simple structure can be realized.

The fourteenth feature configuration is that in addition to the twelfth feature configuration described above, the pressing mechanism is composed of an elastic body.

According to the said structure, since the pressing mechanism is comprised from an elastic body, it can absorb to some extent the fluctuation | variation of the pressing force by the dimensional tolerances, such as a press plate and a friction plate, and it is less than the pressure contact force by a press mechanism, and also in a press release state. It is possible to easily obtain a predetermined pressing force that is equal to or greater than the minimum pressing force required for transmitting power on the power transmission shaft side to the power transmission shaft side.

The fifteenth feature configuration is that in addition to the twelfth feature configuration described above, the pressing mechanism is held in a position relative to the support section by the position holding section formed in the support section.

According to the above structure, when a slip occurs in the friction plate and the pressing plate, it is possible to prevent the pressing mechanism from following and sliding in the circumferential direction, thereby reducing the risk of fluctuations in the pressing force of the pressing mechanism or the failure. .

In addition to the twelfth feature, the sixteenth feature is that the pressing mechanism is inserted into contact with the pressing mechanism from an opening formed in the supporting portion, and is configured to apply a predetermined pressing force by the lid of the opening.

According to the above configuration, the pressing mechanism is inserted to contact the pressing mechanism from the opening formed in the supporting portion, and is configured to impart a predetermined pressing force by the lid of the opening, so that the fine adjustment of the pressing force can be easily performed.

In addition to the twelfth feature, the seventeenth feature is accommodated such that a plurality of friction plates and a pressure plate are alternately arranged in an annular recess formed on the gear side of the output end, and either of the friction plate or the pressure plate is provided. The inner circumference and the side wall of the annular recess are engaged by the first engagement portion, and the other side is engaged by the support portion and the second engagement portion.

According to the above constitution, the inner circumference of either the friction plate or the pressure plate and the side wall of the annular recess are engaged by the first engaging portion in the annular recess formed on the gear side of the output end. By alternately arranging and accommodating the supporting portion and the output shaft which are integrally rotated with each other by the second engagement portion, the area of the contact surface between the friction plate and the pressure plate can be increased, and the pair of friction plates and the pressure plate of the large diameter Since the torque equal to the limit torque by press contact can be generated, a torque limiter can be comprised compactly and the transmission mechanism can be miniaturized.

In order to achieve the above object, a first feature configuration of a shredding device according to the present invention includes a shredding processing unit for shredding a workpiece by a rotary blade fixed to the shredding rotor and a fixed blade disposed opposite to the rotary blade, and a driver; A crushing device having a transmission mechanism for transmitting power from the crushing rotor, the crushing device is installed between the driver and the crushing rotor, and transmits the power to the crushing rotor through the friction plate and the pressure plate pressed by the pressing mechanism. When the torque of the crushing rotor becomes higher than the set torque, the torque limiter for causing slippage between the friction plate and the pressure plate, and the pressure mechanism is operated by pressing the friction plate and the pressure plate when the crushing device is started, and then the actuator is started. At the point where a crushing apparatus is stopped, the control apparatus which stops a pressurization mechanism after stopping a driver is provided. have.

According to the above configuration, since the torque limiter is provided between the driver and the crushing rotor, when the required torque of the crushing rotor becomes equal to or greater than the set torque of the torque limiter, slippage occurs in the friction plate and the pressure plate, and from the driver to the crushing rotor, Since no power is transmitted, damage to the transmission mechanism or the driver due to an abnormal load can be avoided beforehand. When the required torque of the crushing rotor is less than the set torque of the torque limiter, the friction plate and the pressure plate are eliminated so that the friction plate and the pressure plate rotate integrally to transfer power from the driver to the crushing rotor.

In this way, non-transmission and transmission of power from the driver to the crushing rotor can be automatically switched on the basis of whether the demanded torque of the crushing rotor is greater than or equal to the set torque or less than the set torque. Further, by changing the pressure contact force between the pressure plate and the friction plate by the pressure mechanism, it is possible to easily adjust the set torque at which the power from the driver to the crushing rotor becomes non-transmitted when the pressure plate and the friction plate are slipped.

Since the control device is provided to operate the pressurizing mechanism at the start of the crushing device to reliably press the friction plate and the pressurizing plate to start the driver, and to stop the pressurizing mechanism after stopping the drive at the crushing device stoppage. As long as the friction plate and the pressure plate are always pressurized by a predetermined pressure welding force during the operation of the device, and foreign matter is inserted into the rotary blade and the fixed blade so that the torque of the crushing rotor becomes more than the set torque, the friction does not occur. Sliding does not occur in the plate and the pressurizing plate, and breakage due to pressing and abrasion caused by heat generation can be reduced.

The second feature configuration is in addition to the above-described first feature feature, wherein the control device detects the pressurized state by the pressurizing mechanism at the start of the shredding device and prohibits starting of the driver if it deviates from the predetermined pressurized state. .

According to the above configuration, the control device detects the pressurized state of the friction plate and the pressurizing plate by the pressurizing mechanism at the start of the shredding device, and does not start the driver if it deviates from the predetermined pressurized state. Operation in an inadequate state can be prevented and damage caused by crushing and abrasion caused by heat generation can be reduced.

The third feature configuration is in addition to the above-described first feature configuration, wherein the control device detects the pressurized state by the pressurizing mechanism after the crushing device is started and stops the driver if it deviates from the predetermined pressurized state.

According to the above configuration, the control device detects the pressurized state of the friction plate and the pressurizing plate by the pressurizing mechanism after starting the shredding device, and stops the driver if it deviates from the predetermined pressurized state. Operation in an inadequate state can be prevented and damage caused by crushing and abrasion caused by heat generation can be reduced.

In addition to the second or third feature configuration described above, the fourth feature configuration includes a pusher mechanism for pressing the object to be shredded into the shredding processing section, and a hydraulic circuit for driving the pusher mechanism and the pressurizing mechanism, and the hydraulic circuit has a predetermined flow rate. The second flow path for supplying the hydraulic oil to the pressurization mechanism is branched from the pressure adjusting mechanism for supplying the hydraulic oil to the first flow path for supplying the hydraulic oil through a switching valve for driving the pusher mechanism forward and backward, and the second flow path is supplied to the pressure mechanism. In addition to providing a pressure reducing valve for adjusting the pressure of the working oil, a pressure sensor for detecting a pressurized state is provided downstream of the pressure reducing valve, and the control device is pressurized by the pressure mechanism based on the output of the pressure sensor. The point is to detect the condition.

According to the above configuration, the hydraulic circuit branches the second flow passage for supplying the hydraulic oil to the pressurizing mechanism from the pressure adjusting mechanism for supplying the hydraulic oil of the predetermined flow rate to the first flow passage for supplying the hydraulic oil through the switching valve for driving the pusher mechanism forward and backward. By connecting, the pressure adjusting mechanism for supplying the hydraulic oil having a predetermined flow rate to the first flow passage and the second flow passage can be shared, so that the hydraulic circuit can be simplified and the cost can be reduced.

Moreover, since the pressure reduction valve which adjusts the pressure of the hydraulic oil supplied to a pressurization mechanism is provided in a 2nd flow path, the pressure of the hydraulic oil supplied to a pressurization mechanism can be adjusted. Since the pressure sensor which detects a pressurization state is provided in the downstream of a pressure reduction valve, the said control apparatus can detect the pressurization state of the friction plate and a pressurization plate by a pressurization mechanism based on the output of a pressure sensor, It is possible to prevent operation in a state in which the pressing plate is in an insufficient pressure state, and it is possible to reduce breakage due to pressing and abrasion caused by heat generation.

The fifth characteristic configuration includes a crushing processing unit for crushing a crushed object by a rotary blade fixed to the crushing rotor and a fixed blade disposed opposite to the rotary blade, a transmission mechanism for transmitting power from the driver to the crushing rotor; A shredding device having a pusher mechanism for pressing the object to be shredded into the shredding treatment part, the shredding device is provided between the driver and the shredding rotor, and transmits power to the shredding rotor through the friction plate and the pressure plate pressed by the pressure mechanism. A torque limiter for causing slippage of the friction plate and the pressurizing plate when the torque of the crushing rotor becomes higher than the set torque; and a hydraulic circuit for driving the pusher mechanism and the pressurizing mechanism, and the hydraulic circuit includes a pressure for supplying a hydraulic fluid having a predetermined flow rate. Pressurizer to the first flow path for supplying the hydraulic oil from the adjustment mechanism through the switching valve for driving the pusher mechanism forward and backward The second flow path for supplying the hydraulic oil is branch-connected to the second flow path, and a pressure reducing valve for adjusting the pressure of the hydraulic oil supplied to the pressurizing mechanism is provided on the second flow path, and the hydraulic oil supplied to the pressure reducing valve is provided upstream of the switching valve. It is a point provided with the sequence valve hold | maintained more than pressure.

According to the above configuration, since the torque limiter is provided between the driver and the crushing rotor, when the required torque of the crushing rotor becomes greater than or equal to the set torque of the torque limiter due to foreign matter getting into the crushing processing part, Slip is generated and power is transferred from the driver to the crushing rotor, thereby preventing damage to the transmission mechanism or the driver due to an abnormal load. When the required torque of the crushing rotor is less than the set torque of the torque limiter, the friction plate and the pressure plate are eliminated so that the friction plate and the pressure plate rotate integrally to transfer power from the driver to the crushing rotor.

In this way, non-transmission and transmission of power from the driver to the crushing rotor can be automatically switched on the basis of whether the demanded torque of the crushing rotor is greater than or equal to the set torque or less than the set torque. Further, by changing the pressure contact force between the pressure plate and the friction plate by the pressure mechanism, it is possible to easily adjust the set torque at which the power from the driver to the crushing rotor becomes non-transmitted when the pressure plate and the friction plate are slipped.

The hydraulic circuit is branched by connecting a second flow path for supplying hydraulic oil to the pressurization mechanism to a first flow path for supplying hydraulic oil through a switching valve for driving the pusher mechanism forward and backward from the pressure adjusting mechanism for supplying the hydraulic fluid at a predetermined flow rate. Since the pressure adjusting mechanism for supplying the hydraulic oil of the predetermined flow rate to the second flow path can be shared, the hydraulic circuit can be simplified and the cost can be reduced.

Moreover, since the pressure reduction valve which adjusts the pressure of the hydraulic oil supplied to a pressurization mechanism is provided in a 2nd flow path, the pressure of the hydraulic oil supplied to a pressurization mechanism can be adjusted. Since a sequence valve is provided on the upstream side of the switching valve to hold the hydraulic oil supplied to the pressure reducing valve above a predetermined pressure, even if the pressure of the hydraulic oil supplied to the first flow path is changed, the pressure of the hydraulic oil supplied to the second flow path is a predetermined pressure. Since it is maintained above, since the pressure of the hydraulic oil in a 2nd flow path can be kept in a predetermined pressurized state, without a fall of the pressure, the sliding by the pressure contact force of a friction plate and a pressurization plate falls does not arise. I can transmit power stably.

The sixth feature configuration is, in addition to the fifth feature configuration described above, an accumulator that compensates for the pressure drop of the hydraulic oil supplied to the pressurizing mechanism when the pressure regulating mechanism is unloaded downstream of the pressure reducing valve provided in the second flow path. ) Is provided.

According to the said structure, forward drive and backward drive of a pusher mechanism by the accumulator which compensates the pressure fall of the hydraulic oil supplied to a pressurizing mechanism at the time of unloading of a pressure regulating mechanism provided in the downstream of the pressure reduction valve provided in the 2nd flow path. Since the pressure of the hydraulic oil supplied to the second flow path is maintained above the predetermined pressure even when the pressure in the first flow path is lowered when the pressure regulating mechanism is unloaded at the time of switching, the friction plate and the pressure plate can be kept in a predetermined pressure state. As a result, slippage due to a decrease in the pressing force between the friction plate and the pressure plate does not occur, and power can be transmitted stably.

In addition to the fifth characteristic configuration described above, the torque limiter is assembled to the transmission mechanism, the gear of the output end is inserted into the output shaft of the transmission mechanism, and the friction plate and the pressure plate are arranged around the shaft center of the output shaft. The power is transmitted from the gear of the output stage to either the friction plate or the pressure plate, and is arranged to transmit power to the output shaft from the other side.

According to the above configuration, the power from the driver is transmitted from the gear at the output end to the friction plate or the pressure plate, from the pressure plate or the friction plate to the output shaft, and from the output shaft to the crushing rotor, so that the required torque of the crushing rotor is When the torque is higher than the set torque, the friction plate and the pressure plate are slid so that power is transmitted from the driver to the driven member, thereby preventing damage to the transmission mechanism and the driver due to an abnormal load.

In addition to the seventh feature described above, the eighth feature includes a oil pump that is rotationally driven by power from a driver and circulates and supplies lubricant oil filled in the casing of the transmission mechanism to the torque limiter as cooling oil. Is in point.

According to the said structure, since a torque limiter can be cooled by the lubricating oil filled in the casing of a transmission mechanism, and since an oil pump is rotationally driven by the power from a driver, a driver for driving an oil pump is further provided. This eliminates the need for further cost reduction.

The ninth feature configuration is, in addition to the fifth feature configuration described above, a return flow path in which leakage of the hydraulic oil of the hydraulic circuit is used as the lubricating oil of the transmission mechanism and returns surplus oil from the casing of the transmission mechanism to the oil tank of the hydraulic circuit. It is located at the point where the road is installed.

According to the above configuration, since the hydraulic oil supplied to the transmission mechanism by the return flow path can be returned from the casing of the transmission mechanism to the oil tank of the hydraulic circuit as surplus oil, the level of the lubricating oil in the casing is increased beyond the predetermined liquid level. You can prevent it.

Effect of the Invention

As described above, according to the present invention, when the required torque on the power transmission shaft side becomes equal to or higher than the set torque, the friction plate and the pressure plate of the torque limiter slide and power is transferred from the power transmission shaft to the power transmission shaft to shift the speed. Avoid excessive damage to the mechanism or driver, and if the required torque on the power transmission shaft side is less than the set torque, transfer power from the power transmission shaft to the power transmission shaft to transfer power without unnecessary recovery of the torque limiter. It is possible to provide a shredding device in which power is transmitted by the mechanism and the power transmission mechanism.

1 is a schematic diagram of a shredding apparatus according to the present invention.
2 is a side view of the shredding apparatus according to the present invention.
3 is a plan view of a crushing apparatus according to the present invention.
4 is an explanatory diagram of a power transmission mechanism according to the present invention.
It is explanatory drawing of the principal part of the power transmission mechanism by this invention.
6 is an external view of a power transmission mechanism according to the present invention.
7 is an explanatory diagram of a hydraulic circuit.
8 is an explanatory diagram of a control device.
Fig. 9A is an explanatory diagram of pump characteristics during the forward and backward driving of the pusher mechanism, and Fig. 9B is an explanatory diagram of vibrations detected by the vibration sensor.
10 is a flowchart of the start control of the shredding apparatus.
11 is a flowchart of stop control of the shredding apparatus.
Fig. 12A is an explanatory diagram of transmission of power by the torque limiter, and Fig. 12B is an explanatory diagram of non-transmission of power by the torque limiter.
It is explanatory drawing of the power transmission by a press mechanism.
It is explanatory drawing of the power transmission by a press mechanism.
15 (a) is an explanatory view of the procedure for assembling the pressing mechanism, and FIG. 15 (b) is an explanatory view of the supporting portion in which the pressing mechanism is assembled.
It is explanatory drawing of the press mechanism which concerns on other embodiment.
Fig. 17 (a) is an explanatory diagram of a decrease in the rotational speed within a predetermined time due to the ingress of a foreign object, and Fig. 17 (b) is an explanatory view of the reduction in the rotational speed within a predetermined time due to the inflow of a crushed object having a high load. .
18 is an explanatory diagram of a hydraulic circuit according to another embodiment.
It is explanatory drawing of the conventional crushing apparatus.

EMBODIMENT OF THE INVENTION Below, preferable embodiment of the power transmission mechanism, the power transmission control apparatus, and the crushing apparatus by which power is transmitted by a power transmission mechanism by this invention is described.

As shown in FIGS. 1-3, the uniaxial shearing crushing apparatus 1 (henceforth "the crushing apparatus 1") as an example of a crushing apparatus is used for the shredding of crushed products, such as a telephone product, a building waste material, plastics, etc. A storage hopper 2 to be introduced, a crushing unit 10 for crushing the crushed object put into the hopper 2, a pusher mechanism 3 for pressing the crushed object from the horizontal direction toward the crushing unit 10, and And an electric motor M as an example of a driver for driving the crushing processing unit 10, and the pusher mechanism 3 and the electric motor M are driven and controlled by the control device 100 described later.

The pusher mechanism 3 consists of the piston of the hydraulic cylinder 3c connected to the arm 3b connected to the rear end of the press-fit pusher 3a, and is supplied from the hydraulic pump 52 provided in the hydraulic circuit 60 mentioned later. The press-fit pusher 3a is forward-reversely driven on the base plate 4 in the horizontal direction by the working oil to be pressed to press the crushed object toward the crushing processing unit 10.

The shredding processing section 10 has a shredding rotor 5 as an example of a driven machine that rotates around a predetermined shaft center and a tip v fixed to a groove 5v formed in the circumferential direction on the peripheral surface of the shredding rotor 5. It consists of the rotating blade 6 of a shape, and the fixed blade 7 of the tip-shaped v-shape opposingly arranged along the direction of the rotation axis 5c of the crushing rotor 5. As shown in FIG.

In detail, in the circumferential direction of the circumferential surface of the crushing rotor 5, a plurality of v-shaped groove portions 5v parallel to each other at a predetermined pitch are formed, and the attachment sheet formed in each of the groove portions 5v. The blade 6a is fastened by the bolt to 6b, and comprises the rotary blade 6. The rotary blade 6 is arrange | positioned so that the vertices of the blade body 6a provided in the groove part 5v which adjoin each other may become a zigzag shape.

The fixed blade 7 has a v-shaped blade 7a at the tip of a plurality of attachment sheets 7b provided at the end of the base plate 4 along the axial direction of the crushing rotor 5 by bolts. have.

The rotary shaft 5c of the crushing rotor 5 is connected to and supported by a deceleration mechanism 30 whose one end is fixed to the mounting mount 12a, and the other end is connected to a bearing 16 fixed to the mounting mount 12b. It is supported. The mounting mount 12a is attached to one side 11a of the main body frame 11, and the mounting mount 12b is attached to the other side 11b of the main frame 11, and all of the supports of the reduction mechanism 30 are supported. Becomes In addition, the reduction mechanism 30 is an example of the transmission mechanism of this invention.

As the crushing rotor 5 supported at both ends rotates as described above, the rotary blade 6 attached to the circumference of the crushing rotor 5 and the fixed blade 7 attached to the end of the base plate 4 are engaged. The crushed object put into the storage hopper 2 is sheared.

In addition, in order to detect the vibration of the crushing rotor 5, the vibration sensor 101 is installed at an appropriate position on the reduction mechanism 30 side, and the vibration sensor 102 is installed at an appropriate position of the bearing 16. have.

The screen mechanism 8 is arrange | positioned under the crush processing part 10. FIG. The screen mechanism 8 is formed by forming a punching metal in which a plurality of opening holes are formed in an arc shape along a rotational trajectory of the rotary blade 6, and is formed by the rotary blade 6 and the fixed blade 7. The crushed object crushed to below the size of to pass through.

Among the crushed objects crushed by the rotary blade 6 and the fixed blade 7 of the crushing processing unit 10, the crushed object crushed smaller than the opening hole of the screen mechanism 8 is disposed from the lower portion of the screen mechanism 8 from the opening hole. Falling to the discharge hopper 9 and discharged to the outside of the crushing device 1, the thing not passing through the opening hole is again crushed by the rotary blade 6 and the fixed blade (7).

The electric motor M is fixed to the mount installed in the lower part of the crushing apparatus 1. The pulley 13 attached to the output shaft of the power of the electric motor M, and the pulley 15 attached to the input shaft 31 of the deceleration mechanism 30 are connected by the v belt 14. The power of the electric motor M is shifted at a predetermined rotational speed by the reduction mechanism 30, is output from the output shaft 37 of the reduction mechanism 30, and is transmitted to the crushing rotor 5.

In addition, the output shaft of the electric motor M and the input shaft 31 of the reduction mechanism 30 may be connected by a coupling without connecting the v-belts 14 via the pulleys 13 and 15.

As shown in FIG. 4, the deceleration mechanism 30 includes an input shaft 31 to which power from the electric motor M is transmitted, an output shaft 37 to transmit power to the crushing rotor 5, and an input shaft 31. A gear mechanism for transmitting power to the output shaft 37 and a torque limiter 20 are provided to provide the power transmission mechanism of the present invention.

The gear mechanism includes a first gear 32 formed on the circumferential surface of the input shaft 31, a second gear 33 attached to the rotary shaft 34 and engaged with the first gear 32, and a rotation shaft 34. It consists of the 3rd gear 35 formed in the circumferential surface, and the 4th gear 36 which meshes with the 3rd gear 35. As shown in FIG.

The fourth gear 36 has an opening formed in the center thereof and is provided to be able to be idled around the output shaft 37 through the bearing 38. The power of the fourth gear 36 is configured to be transmitted to the output shaft 37 via the torque limiter 20. In this embodiment, the rotating shaft 34 becomes a power transmission shaft, the output shaft 37 becomes a power transmission shaft, and the 4th gear 36 becomes a gear of an output stage.

In addition, although the 1st gear 32 and the 3rd gear 35 are comprised integrally by the teeth 31 and 34 formed in the periphery, respectively, the rotation shafts 31 and 34 and a separate gear are respectively It may be inserted into the rotary shafts (31, 34) of. In addition, the number of gears provided in the reduction mechanism 30 is not limited to this, and is appropriately set in consideration of the speed ratio.

The input shaft 31 is supported by bearings 40 and 41 fixed to the inner wall of the casing 39. The rotating shaft 34 is supported by bearings 42 and 43 fixed to the inner wall of the casing 39. The output shaft 37 is supported by bearings 44 and 45 fixed to the inner wall of the casing 39.

The vibration sensor 101 is provided in an appropriate position in the vicinity of the bearing 45 of the output shaft 37 with sensitivity so as to detect the fluctuation of the instant when the required torque on the crushing rotor 5 becomes equal to or higher than the set torque.

The torque limiter 20 transmits power to the output shaft 37 by the frictional force between the annular friction plate 21 and the friction plate 21 which are rotated by the power transmitted from the rotation shaft 34, and the friction material is attached to both surfaces. The annular pressing plate 22 is arranged around the shaft center of the output shaft 37, and when the required torque on the output shaft 37 side is equal to or higher than the set torque, the friction plate 21 and the press plate 22 slide, and the set torque. If it is less than, the pressurizing mechanism 26 for press-contacting the friction plate 21 and the pressure plate 22 with a predetermined pressing force so that the friction plate 21 and the pressure plate 22 are integrally rotated to transmit power to the output shaft 37. ) Is configured.

That is, the power of the electric motor M is input to the input shaft 31 of the reduction mechanism 30, is transmitted in the order of the fourth gear 36, the friction plate 21, which is the gear of the output end through the gear mechanism, and pressurized The mechanism 26 is transmitted to the pressure plate 22 and the output shaft 37 which are pressed against the friction plate 21 at a predetermined pressure, and then to the crushing rotor 5.

The torque limiter 20 is explained in full detail. As shown in FIG. 5, an annular recess 36a capable of accommodating a plurality of friction plates 21, a pressure plate 22, and a support 23 is formed on one side of the fourth gear 36. have.

The support part 23 has the stopper 25 which hold | maintains the several sheets of press plates 22 and the friction plates 21 in the state arrange | positioned alternately, and the friction plate 21 and the press plates 22, the output shaft 37 The pressurization mechanism 26 which press-contacts in the direction parallel to the axis center of () is provided.

The toothed portion 21a formed on the inner circumferential side of the friction plate 21 and the groove portion 36b formed on the side wall of the annular recess 36a are splined together, and the friction plate 21 is relative to the fourth gear 36. It is not rotatable and is movable in the axial direction of the output shaft 37. In other words, the first engagement portion is formed by the tooth portion 21a and the groove portion 36b. The first engagement portion is not limited to spline coupling, and may be a key structure in which a key groove and a key engage.

The toothed portion 22a formed on the outer circumferential side of the pressure plate 22 and the groove portion 23a formed on the side wall of the support portion 23 are spline-coupled, and the pressure plate 22 is not rotatable relative to the support portion 23, In addition, the output shaft 37 is movable in the axial direction. That is, the 2nd engagement part is comprised by the tooth part 22a and the groove part 23a. The second engagement portion is not limited to spline coupling, but may be a key structure in which the key groove and the key engage.

The support 23 is formed with an opening for inserting the output shaft 37 at the center thereof, and a groove 23c is formed at the inner circumferential side, and is integrally engaged with the groove 37c formed around the output shaft 37. It is configured to rotate.

The pressurizing mechanism 26 is an annular cylinder portion 26c formed in the support portion 23, an annular piston 26a disposed in the cylinder portion 26c and movable in a direction parallel to the axis center of the output shaft 37, It consists of the hydraulic chamber 26b which injects hydraulic fluid which operates the piston 26a to an axial direction. That is, the piston 26a becomes a press member which press-contacts a press plate and a friction plate.

Grooves (not shown) are formed along the circumferential surface of the piston 26a, and a seal member (not shown) is inserted into the grooves. The hydraulic chamber 26b is held tightly by the seal member (not shown).

The output shaft 37 is composed of a hollow shaft capable of sandwiching the rotary shaft 5c of the crushing rotor 5 at the center thereof, and has a key groove 37h and a rotary shaft 5c formed at the hollow portion of the output shaft 37. Key grooves formed at the ends are keyed.

In the output shaft 37, a hydraulic oil passage 37a for supplying hydraulic oil to the hydraulic chamber 26a of the pressurizing mechanism 26 is formed along a direction parallel to the shaft center. The hydraulic oil supplied from the oil supply port 37d formed in the casing 39 is supplied to the hydraulic oil passage 37a through the oil supply groove 37f formed to communicate with the hydraulic oil passage 37a, and the hydraulic oil is supplied into the hydraulic chamber 26b. The pressure plate 22 and the friction plate 21 are press-contacted by supplying and moving the piston 26a in the direction parallel to the axis center of the output shaft 37.

In addition, the oil supply groove 37f is formed over the entire circumference of the output shaft 37 so that the hydraulic oil supplied from the supply port 37d always flows into the hydraulic flow path 37a even when the output shaft 37 rotates.

The output shaft 37 also has a cooling oil passage for supplying cooling oil to the contact surface between the friction plate 21 and the pressure plate 22 through the inner sidewall of the annular recess 36a and the gap 27 between the support portion 23 ( 37b) is formed.

The cooling oil supplied from the oil supply port 37e formed in the casing 39 is supplied to the cooling flow path 37b through the oil supply groove 37g formed to communicate with the cooling flow path 37b, and the cooling oil passes through the friction plate 21. The contact surface of the pressure plate 22 is cooled.

In addition, the oil supply groove 37g is a position shifted from the oil supply groove 37f and is formed over the entire circumference of the output shaft 37, and even if the output shaft 37 rotates, the hydraulic oil supplied from the supply port 37e is always the cooling oil path ( 37b).

As shown in FIG. 6, in the casing 39, the upper edge portion 39a and the lower edge portion 39b are symmetric with respect to the center line CL and are spaced apart from one end side 39c to the other end side 39d. It is formed so that it may become narrow gradually. On the center line CL, the axis of the first gear 32 of the input end, that is, the axis of the input shaft 31, the axis of the rotation shaft 34, and the axis of the fourth gear 36 of the output end, that is, of the output shaft 37. The shaft is housed in position.

One end side 39c and the other end side 39d of the casing 39 are convexly curved surfaces facing outward, and are formed so as to extend inward from the ends of the upper edge portion 39a and the lower edge portion 39b. In each of the vicinity of the end of the upper edge part 39a and the lower edge part 39b, the attachment part 46 which fixes the said deceleration mechanism 30 to the mounting stand 12a is formed, and this attachment part 46 is equipped with the bolt. A hole is formed.

In this way, the reduction mechanisms are provided on both the upper edge portion 39a and the lower edge portion 39b of the casing 39 formed such that the upper edge portion 39a and the lower edge portion 39b are symmetrical with respect to the center line CL. Since the attachment part 46 which fixes 30 to the mounting stand 12b is provided, either the upper edge part 39a or the lower edge part 39b can be fixed to the mounting stand 12b.

In addition, the shafts of the input shaft 31 and the output shaft 37 are accommodated on the center line CL of the casing 39, and power from the electric motor M is received from one side of the casing 39 from the input shaft 31. ), And the deceleration mechanism 30 is configured so that the power of the output shaft 37 is transmitted to the crushing rotor 5 from the other side of the casing 39. Therefore, the deceleration mechanism 30 can be fixed to the mounting stand 12 on either side of the main body frame 11, and the freedom degree at the time of fixing the deceleration mechanism 30 increases, and the convenience of use is improved.

By fixing the reduction mechanism 30 to the mounting mount 12a, it is not necessary to separately provide the support for the reduction mechanism 30, and the installation space is reduced. In addition, centering of the output shaft 37 of the reduction mechanism 30 and the rotation shaft 5c of the crushing rotor 5 can be performed easily. In addition, one end side of the rotary shaft 5c of the crushing rotor 5 can be fitted to the output shaft 37 to support the rotary shaft 5c with the bearing 45 of the reduction mechanism 30. The number of parts can be reduced.

As shown to FIG. 4, FIG. 7, the oil pump 70 which rotationally drives by the power from the electric motor M is provided in the side surface of the casing 39. As shown in FIG. The oil pump 70 sucks the lubricating oil filled in the casing 39 of the reduction mechanism 30 from the discharge port formed at an appropriate position on the side of the casing 39, and torques it through the oil supply pipe 48 and the oil supply port 37e. The friction plate 21 and the pressure plate 22 are cooled by circulating and supplying them to the limiter 20.

In addition, the oil supply pipe 48 is suitably provided with a filter 61, a cooler, a check valve, etc. for removing the dust contained in the oil.

The oil pump is not necessarily fixed to the casing 39, but it is preferable to use a trocoid pump or a plunger pump which uses the rotation of the input shaft 31 as a power source from the viewpoint of reducing the power cost.

In the case of employing a trocoid pump, the inner gear fixed to the input shaft 31 and the outer rotor may be rotated so as to repeat the suction and discharge processes. In the case of employing the plunger pump, the suction and discharge processes may be repeated by the relative rotation of the cam and the casing 39 fixed to the input shaft 31.

In addition, the power of the oil pump 70 is not limited to drawing out from the input shaft 31, and drawing out from the rotating shaft 34 or the output shaft 37 may be sufficient as it.

The hydraulic circuit 60 of the crushing apparatus 1 is demonstrated.

As shown in FIG. 7, the hydraulic circuit 60 of the crushing apparatus 1 is the hydraulic pump 52 which supplies the hydraulic fluid of predetermined flow volume, and the pressure adjustment mechanism which adjusts the pressure of the hydraulic oil which the hydraulic pump 52 outputs. 57 and the supply pipe 51 serving as the first flow path for supplying the hydraulic oil supplied from the hydraulic pump 52 to the hydraulic cylinder 3c of the press-fit pusher 3a and the press-fit pusher The direction switching valve 53 which is a 4-port 3-position directional control valve which switches forward retreat drive of (3a), and the sequence valve 54 upstream of the direction switching valve 53 are provided, and the direction switching valve 53 ), A relief valve 63 is provided downstream.

In addition, a supply pipe 47 serving as a second flow path for supplying hydraulic oil to the pressurizing mechanism 26 is connected to the supply pipe 51. The sequence valve 54 maintains the hydraulic oil supplied to the pressure-reducing valve 50 of the supply pipe 47 to a predetermined pressure or more.

The hydraulic pump 52 is an electronic two-pressure two-volume control type piston pump, and the low pressure is provided by switching on / off of the solenoids SOL1 and SOL2 included in the pressure regulating mechanism 57 according to the operation of the direction switching valve 53. Large flow rate and high pressure low flow rate are discharged. The hydraulic pump 52 is configured to be capable of unloading when the push-in pusher 3a is driven forward and backward, and when the pressure of the hydraulic oil supplied to the hydraulic circuit 60 is unnecessary.

When the large amount of foreign material is put into the crushing processing part 10 during the advancement of the hydraulic cylinder 3c, and the pressure in the pressurizing pusher 3a becomes large and the pressure in the supply pipe 51 becomes more than predetermined pressure, The hydraulic oil supplied to the hydraulic pump 52 is escaped to the oil tank 59 to protect the hydraulic circuit 60.

The supply pipe 47 is a pressure reducing valve 50 for adjusting the pressure of the hydraulic oil supplied to the pressure mechanism 26 and a pressure provided downstream of the pressure reducing valve 50 to detect the pressurized state of the pressure mechanism 26. The sensor 56, the switching valve 58, and the accumulator 55 are provided. The switching valve 58 is a four-port two-position directional control valve for switching the pressurized state of the friction plate 21 and the pressurizing plate 22 by the pressurizing mechanism 26. The accumulator 55 is provided in the supply pipe 51 supplied to the pressurizing mechanism 26 at the time of the unloading operation of the hydraulic pump 52 by the pressure adjusting mechanism 57 at the time of switching the forward retraction drive of the press-fit pusher 3a. Compensate for the pressure drop in the hydraulic fluid.

The hydraulic oil supplied to the torque limiter 20 by the supply pipe 47 leaks from the pressurizing mechanism 26 into the casing 39 and is used as cooling oil of the torque limiter 20 or as lubricating oil of each part in the deceleration mechanism 30. . The surplus oil in the casing 39 is returned to the oil tank 59 of the hydraulic circuit 60 by the overflow pipe 49 as an example of the return flow path for discharging the lubricating oil in the casing 39 at a predetermined liquid level. The overflow pipe 49 is provided with a filter 62 for preventing dust in oil from entering the oil tank 59.

Since the hydraulic oil supplied to the pressure mechanism 26 leaks into the reduction mechanism 30 and is also used as lubricating oil of the gear mechanism or cooling oil of the friction plate and the pressure plate, the extreme pressure additive is added to the oil of about 68 from the kinematic viscosity VG32. It is preferable to use one mission oil.

The control apparatus 100 of the crushing apparatus 1 is demonstrated.

As shown in FIG. 8, the control apparatus 100 of the crushing apparatus 1 is a signal of the start switch S1 and the stop switch S2, and the forward switch provided in the hydraulic cylinder 3c of the press-fit pusher 3a. The signal of S3 and the retraction switch S4, and the signal of the pressure sensor 56 provided in the supply piping 47 are input.

The control device 100 controls the start stop of the electric motor M, the start stop control of the hydraulic pump 52 for supplying hydraulic oil to the supply pipes 47, 51, and the pressure adjusting mechanism 57 of the hydraulic pump 52. Switching control of on-off of solenoids SOL1 and SOL2, control of the direction switching valve 53 provided in the 1st flow path 51, and the switching valve 58 provided in the 2nd flow path 47 are performed.

In addition, the control apparatus 100 may be provided in the inside of the crushing apparatus 1, and may be provided in the control panel etc. provided in the exterior of the crushing apparatus 1, and the like.

When the start switch S1 is input, the control device 100 first starts the hydraulic pump 52 to control the switching valve 58, and operates the press mechanism 26 to operate the friction plate 21 and the press plate 22. ) Is pressed. Thereafter, the electric motor M is started to control the direction switching valve 53 and start the forward drive or the retract drive of the press-fit pusher 3a.

As shown in Fig. 9 (a), at the time of the forward drive of the press-fit pusher 3a, the solenoids SOL1 and SOL2 of the pressure adjusting mechanism 57 are turned on, respectively, and the discharge from the hydraulic pump 52 causes the high pressure low flow rate [ejection]. Pressure P2, discharge flow rate Q1].

At the time of switching the forward drive and the retract drive of the press-fit pusher 3a, the solenoids SOL1 and SOL2 of the pressure adjusting mechanism 57 are turned off, respectively, and the hydraulic pump 52 is in the unloading operation state (discharge pressure P3, discharge flow rate). (Q2)], the pressure of the hydraulic oil supplied to the hydraulic circuit 60 is suppressed low.

At the time of the retraction drive of the press-fit pusher 3a, the solenoid SOL1 of the pressure adjusting mechanism 57 is turned off, the solenoid SOL2 is turned on, and the discharge from the hydraulic pump 52 causes a small pressure large flow rate (discharge pressure P1). Discharge flow rate Q2].

Thus, although the pressure of the hydraulic oil supplied to the hydraulic circuit 60 at the time of forward retraction drive and the switching of the press-fit pusher 3a fluctuates, the required pressure of the hydraulic oil in the supply pipe 51 supplied to the pressurizing mechanism 26 is changed. This is compensated by the accumulator 55. Therefore, the pressure contact force of the friction plate 21 and the pressure plate 22 can be transmitted stably without fluctuating.

When the stop switch S2 is input, the control device 100 controls the direction switching valve 53 to stop driving of the press-fit pusher 3a, stops the electric motor M, and then switches off the switching valve 58. By controlling, the pressurizing mechanism 26 is stopped.

The control apparatus 100 detects the pressurized state by the pressurizing mechanism 26 based on the output of the pressure sensor 56 at the time of starting, and prohibits starting of the electric motor M when it deviates from a predetermined pressurized state. . Moreover, the control apparatus 100 detects the pressurization state by the pressurization state by the pressurization mechanism 26 based on the output of the pressure sensor 56 after starting, and when it deviates from the predetermined pressurization state, the electric motor M It is configured to stop.

In addition, signals from the vibration sensors 101 and 102 are input to the control device 100 through the filter unit 103.

As shown in FIG. 9 (b), the filter unit 103 extracts only the high frequency component 71 from the vibrations of the rotation shaft 5c of the output shaft 37 and the crushing rotor 5 detected by the vibration sensors 101 and 102. It is composed of a differential filter. In this embodiment, the vibration sensors 101 and 102 and the filter part 103 become a state detection part.

The control device 100 determines that the torque limiter 20 has been operated when the high frequency component drawn out by the filter unit 103 exceeds a predetermined threshold value, and the hydraulic cylinder assembled to the press-fit pusher 3a ( The supply of hydraulic oil to 3c) and the motor M are stopped.

The slippage between the friction plate and the pressure plate of the torque limiter 20 generated by the foreign material being fed into the rotary blade 6 and the fixed blade 7 is, for example, several tens of milliseconds, and the torque is released when the foreign material is removed. The limiter 20 automatically returns to the power transmission state. However, when a large foreign material or a plurality of foreign materials exists, the foreign material may be bitten in again and again, resulting in damage to the rotary blade 6 and the fixed blade 7.

In addition, the required torque on the power transmission side becomes equal to or higher than the set torque at the instant of the foreign material being fed into the rotary blade 6 and the fixed blade 7, and thereafter, the foreign material is rotated on the rotary blade 6 and the fixed blade 7. Even in the case where the rotation of the crushing rotor 5 is stopped in this state, the torque limiter 20 automatically returns to the power transmission state when the required torque on the power-transmitting side is lower than the set torque. The deceleration mechanism 30 may be damaged.

Even in this case, the control device 100 stops the electric motor M when it is determined that the torque limiter 20 has been operated on the basis of a signal from the state detection unit that detects the operation of the torque limiter 20, so that the crushing rotor The supply of power to (5) is stopped and the damage of the rotary blade 6 and the fixed blade 7 and the damage of each gear of the electric motor M and the deceleration mechanism 30 can be prevented.

As described above, the low frequency noise component is superimposed on the output of the vibration sensors 101 and 102 by detecting the degree of vibration acting on the crushing rotor 5 by the vibration sensors 101 and 102. When the high frequency component 71 is removed by removing the noise component, it is possible to appropriately detect the fluctuation of the instant when the required torque on the crushing rotor 5 becomes equal to or higher than the set torque.

In addition, the control apparatus 100 does not need to stop the electric motor M every time it is determined that the torque limiter 20 has been operated. Even a hard foreign matter can be broken by the rotary blade 6 and the fixed blade 7, or if a small foreign material passes through the gap between the rotary blade 6 and the fixed blade 7 and falls to the screen mechanism 8, You may control so that electric motor M may be stopped when the frequency | count of operation of the torque limiter 20 in predetermined time exceeds the setting frequency. For example, when it is determined that the torque limiter 20 has been operated five times or more within five seconds, the motor M may be stopped.

Starting control of the crushing apparatus 1 is demonstrated based on the flowchart shown in FIG. When the start switch S1 is turned on (SA1), the control device 100 starts the hydraulic pump 52 to supply hydraulic oil to the hydraulic circuit 60 (SA2). Subsequently, the supply of hydraulic oil to the pressurizing mechanism 26 of the torque limiter 20 is started by controlling the switching valve 58 to operate the torque limiter 20 (SA3).

When the pressure in the supply pipe 47 detected by the hydraulic sensor 56 reaches a predetermined pressure (Yes in SA4), the torque limiter 20 is in a state in which power can be transmitted, so that the electric motor is rotated to rotate the crushing rotor 5. Start (M) (SA5).

When the crushing rotor 5 is rotated by the power of the electric motor M, the direction switching valve 53 is controlled to drive the push-in pusher 3a forward (SA6). Here, if the pressure in the supply pipe 47 detected by the hydraulic sensor 56 is a predetermined pressure (YES in SA7), the forward drive of the press-fit pusher 3a until the forward limit switch S3 is turned on (NO in SA8). Continue.

When the forward limit switch S3 is turned on (YES in SA8), the direction switching valve 53 is controlled to drive the push-in pusher 3a backward (SA9). Here, if the pressure in the supply pipe 47 detected by the hydraulic sensor 56 is a predetermined pressure (YES in SA10), the retraction drive of the press-fit pusher 3a until the retraction limit switch S3 is turned on (NO in SA11). Continue. When the retraction limit switch S3 is turned on (YES in SA11), the direction switching valve 53 is controlled to drive the push-in pusher 3a forward (SA6).

When the pressure in the supply pipe 47 detected by the hydraulic sensor 56 in the above-described steps SA4, SA7, SA10 is not a predetermined pressure, the friction plate 21 and the pressure plate 22 by the pressure mechanism 26 are not. Deviates from the predetermined pressurized state, the motor M is stopped (SA12), the hydraulic pump 52 is stopped (SA13), and an abnormality is reported (SA14), and the start control is terminated.

Next, stop control of the crushing apparatus 1 is demonstrated based on the flowchart shown in FIG. When the stop switch S2 is turned on (YES in SB1), the control device 100 controls the direction switching valve 53 to move the press-fit pusher 3a to the retracted position and stop it (SB2). Stops the rotation of the crushing rotor 5 (SB3), and controls the switching valve 58 so that the torque limiter 20 does not transmit power to stop the supply of hydraulic oil to the pressurizing mechanism 26 ( SB4), the hydraulic pump 52 for supplying the hydraulic oil to the hydraulic circuit 60 is stopped (SB5) to stop the stop control.

As described above, when the crushing apparatus 1 is started, the pressure mechanism 26 is operated to reliably press-contact the friction plate 21 and the pressure plate 22, and then the electric motor M is started. It is comprised so that the pressurization mechanism 26 may be stopped after stopping (M). Therefore, the friction plate 21 and the pressure plate 22 are always in a predetermined pressurization state during the start of the crushing device 1, and foreign matter is bitten into the rotary blade 6 and the fixed blade 7 so that the crushing rotor ( Unless a situation occurs in which the power of 5) becomes greater than or equal to the set torque, slippage does not occur in the friction plate 21 and the pressurizing plate 22, and damage due to pressurization or wear caused by heat generation can be reduced.

As described above, since the torque limiter 20 is assembled in the deceleration mechanism 30, when the required torque of the crushing rotor 5 is smaller than the set torque, as shown in FIG. 21 and the press plate 22 are press-contacted by the press mechanism 26, and the electric power of the electric motor M is transmitted to the crushing rotor 5. As shown in FIG.

However, when the foreign material enters the rotary blade 6 and the fixed blade 7, or the like, the required torque of the crushing rotor 5 is set to a value larger than the output torque of the electric motor M. If it becomes more than a set torque, as shown in FIG.12 (b), slip will generate | occur | produce in the friction plate 21 and the pressurizing plate 22. FIG.

In this way, when the required torque of the output shaft 37 becomes equal to or higher than the set torque, the friction plate 21 and the pressure plate 22 are relatively slipped, and the power is transferred to the crushing rotor 5 from the electric motor M by non-transmission. Therefore, it is possible to avoid the possibility that an abnormal load is applied to the deceleration mechanism 30 and broken, or the load of the electric motor M is increased to damage the electric motor M.

In addition, when the transfer of foreign matter to the rotary blade 6 and the fixed blade 7 is eliminated and the required torque of the output shaft 37 is less than the set torque, the friction plate 21 and the pressure plate 22 are integrally formed again. Rotating power is transmitted from the electric motor M to the crushing rotor 5.

In this way, the non-transmission and transmission of power from the electric motor M to the crushing rotor 5 can be automatically switched based on whether the required torque of the crushing rotor 5 is greater than or equal to the set torque or less than the set torque. One recovery operation is unnecessary.

In addition, when slippage occurs in the friction plate 21 and the pressure plate 22 by changing the pressure contact force of the friction plate 21 and the pressure plate 22 by the pressure mechanism 26, that is, crushing from the electric motor M. It is possible to easily adjust the set torque that the power to the rotor (5) is not transferred.

The set torque is set to a value corresponding to the impact force that is excessively generated when the foreign material enters into the shredding processing unit 10, and is set to, for example, a torque three to four times the output torque of the electric motor M.

If the foreign material to the crushing processing unit 10 continues to be reduced to a torque lower than the impact force generated excessively, the slipping state of the friction plate 21 and the pressure plate 22 is eliminated and the friction plate 21 and The situation in which the pressing plate 22 is pressed is avoided.

According to the above configuration, even when a foreign material has entered the crushing rotor of the crushing device, if an abnormal load of power generated by the driver is generated thereby, the friction plate and the pressure plate of the torque limiter are relatively rotated and caused by the abnormal load. While avoiding damage to the blade of the crushing rotor, the drive, and the power transmission mechanism from the driver to the crushing rotor, when power is removed from the drive, the power is transmitted from the input shaft on the driver side to the power transfer shaft. This becomes possible.

By the way, when replacing the blade 6a of the rotary blade 6 of the crushing rotor 5, for the sake of safety, the supply of hydraulic oil to the hydraulic cylinder 3c of the press-fit pusher 3a and the power to the electric motor M It is performed while supply is stopped. In order to replace the blade 6a, it is necessary to rotate the crushing rotor 5.

However, since the crushing rotor 5 is a heavy object, it is difficult to directly rotate it manually. Therefore, the input shaft 31, which is the power transmission shaft, is manually rotated, and the power transmitted shaft is rotated using a gear mechanism provided in the power transmission mechanism. The output shaft 37 is rotated to rotate the crushing rotor 5.

In this way, even when the supply of the hydraulic oil to the pressurizing mechanism 26 is stopped, the contact state of the friction plate and the pressurizing plate is applied to the friction plate by the viscosity of the oil, so that the input shaft 31 of the deceleration mechanism 30 is manually moved. When rotated, the rotation of the input shaft 31 is transmitted to the output shaft 37 so that the crushing rotor 5 can be easily rotated.

However, since the contact state of the friction plate and the pressure plate is due to the viscosity of the oil, the contact state of the friction plate 21 and the pressure plate 22 gradually becomes weak during the replacement operation of the blade 6a, and the input shaft 31 is moved. Even if it rotates, slippage may generate | occur | produce in the friction plate 21 and the pressure plate 22, and the power of the input shaft 31 may not be transmitted to the output shaft 37, and the crushing rotor 5 may not be rotated.

Thus, as shown in FIGS. 13 and 14, the pressure plate in the pressure release state in which the pressure limiting force 28 between the pressure plate 22 and the friction plate 21 by the pressure mechanism 26 is released to the torque limiter 20. It is preferable to provide the pressing mechanism 80 which applies predetermined pressing force 81 to the 22 and the friction plate 21. As shown in FIG.

The predetermined pressing force 81 applied to the pressing plate 22 and the friction plate 21 by the pressing mechanism 80 is less than the pressing force 28 by the pressing mechanism 26, and the input shaft ( 31) is set above the minimum pressure force required to transmit the power on the side to the output shaft 37 side. That is, it is set to the pressure contact force which can transmit the torque applied to the input shaft 31 to the output shaft 37 when the input shaft 31 is rotated manually.

Therefore, even when the pressure is released, the friction plate 21 and the pressure plate 22 are kept in contact with each other, so that a proper friction force is applied. When the input shaft 31 of the deceleration mechanism 30 is rotated manually, the input shaft ( The rotation of 31 is transmitted to the output shaft 37 so that the crushing rotor 5 can be easily rotated.

Specifically, the pressing mechanism 80 is attached to the supporting portion 23 by the position holding portion 23d formed in the supporting portion 23 between the annular piston 26a constituting the pressing mechanism 26 and the supporting portion 23. The position is maintained relatively with respect to, and it is comprised from the elastic body which presses the piston 26a to the press plate 22 and the friction plate 21 side. In addition, the position holding part is not limited to the case where it is formed in the support part 23, but may be formed in the piston 26a.

Based on FIG.15 (a), (b), the procedure of assembling the press mechanism 80 in the support part 23 is demonstrated. In addition, since each member, such as the bolt 25a shown in FIG.15 (a), (b), the support part 23 other than the press mechanism 80, the friction plate 21, the press plate 22, is annular, Only the cross section of the recessed part is shown for convenience.

As shown to Fig.15 (a), the support part 23 inserts a part of the press mechanism 80 in the bottom part of the cylinder part 26c which arrange | positions the annular piston 26a which comprises the press mechanism 26. It is possible to form a plurality of counter bore portions on the concentric circles as the position holding portion 23d which holds the relative positions of the supporting portion 23 and the pressing mechanism 80.

First, the pressing mechanism 80 is inserted into each of the plurality of position holding portions 23d formed in the supporting portion 23, and then, the piston 26a is disposed so as to contact the pressing mechanism 80, and the pressing plate 22 is provided. ) And the friction plate 21 are alternately arranged in a predetermined number of sheets.

At this time, the splice portion 22a formed on the outer circumferential side of the pressing plate 22 and the groove portion 23a formed on the side wall of the supporting portion 23 are splined to each other so that the pressing plate 22 cannot be rotated relative to the supporting portion 23. Done.

On the other hand, the friction plate 21 is movable in the circumferential direction, but later, the toothed portion 21a and the fourth formed in the inner circumference of the friction plate 21 when the support portion 23 is inserted into the output shaft 37. By using a positioning jig (not shown) to smoothly engage the groove portion 36b formed on the side wall of the annular recess of the gear 36, the circumferential direction of each tooth portion 21a of each friction plate 21 can be obtained. Assemble while aligning position.

As shown in FIG. 15 (b), after the predetermined number of press plates 22 and friction plates 21 are disposed on the support 23, the stoppers 25 are fixed to the supports 23 by bolts 25a. . As a result, a predetermined pressing force 81 is applied to the pressing plate 22 and the friction plate 21 by the pressing mechanism 80. In this state, it is difficult to rotate the teeth 21a of the friction plate 21 in the circumferential direction, and it becomes difficult to engage the groove 36b of the fourth gear 36. Therefore, the positioning jig is used. .

The pressing mechanism 80 is preferably configured of an elastic body such as a coiled compression spring, for example. In addition, the elastic body is not limited to the coil-shaped compression spring, but may be a disc spring, a leaf spring, or other known spring, but it is preferable that the spring constant is small.

For example, in the case where the friction plate and the pressure plate 10 are alternately overlapped with each other, even if the dimensional tolerances of the friction plate 21 and the pressure plate 22 are ± 0.1 mm, when the total 20 sheets overlap, the maximum +2 mm and the minimum − There is a possibility that an error of 4 mm in total occurs at 2 mm.

Even in this case, the pressing mechanism 80 is formed of an elastic body such as a compression spring, so that the input shaft 31 side is less than the pressing force by the pressing mechanism 26 without being dependent on the dimensional tolerances of the friction plate and the pressing plate. This is because a predetermined pressing force of more than the minimum pressing force required for transmitting the power of the power to the output shaft 37 side can be easily obtained.

In addition, in the above-mentioned embodiment, a part of the press mechanism 80 can be inserted in the bottom part of the cylinder part of the support part 23, and the position holding part 23d which maintains the relative position of the support part 23 and the press mechanism 80 is carried out. Although the counterbore part as () was formed, the structure which arrange | positions the piston 26a which comprises the pressurizing mechanism 26 after the press mechanism 80 is inserted into the support part 23 was demonstrated, According to this, a laborious assembling work using the above-described positioning jig is required.

Therefore, as shown in FIG. 16, the piston 26a, the several press plate 22, and the friction plate 21 are arrange | positioned in order to the support part 23 in which the opening 23e was formed, and the stopper 25 was arrange | positioned. After fixing, the pressing mechanism 80 may be inserted from the opening 23e to fix the lid 23f with the bolt 23g.

In this case, since the pressing force is not applied to the pressing plate 22 and the friction plate 21 in the step of assembling the pressing plate 22 and the friction plate 21 to the support part 23 and fixing the stopper 25, the friction is not applied. The tooth portion 21a of the plate 21 can be easily moved in the circumferential direction.

In this state, the support part 23 is inserted in the output shaft 37, the groove part 36b formed in the side wall of the annular recess of the 4th gear 36, and the tooth part 21a of the friction plate 21 are combined, and Thereafter, the pressing mechanism 80 is inserted from the opening 23e to fix the lid 23f with the bolt 23g.

With such a configuration, it is not necessary to use a positioning jig, and the assembling work of the torque limiter in which the pressing mechanism is assembled can be performed very smoothly.

Further, even after the pressing plate 22 and the friction plate 21 are assembled to the support 23, a fine force of the pressing force 81 can be inserted by inserting a shim between the lid 23f and the pressing mechanism 80. You can simplify the adjustment.

Moreover, if comprised in this way, the position holding function of the press mechanism 80 can be implement | achieved by the opening 23e formed in the support part 23, and the press mechanism 80 can be stably held.

In addition, although the protrusion part was formed in the site | part which contact | connects the press mechanism 80 among the cover 23f, and the protrusion amount is comprised in FIG. 16, if there exists an appropriate spring which can absorb the manufacturing error mentioned above, the protrusion part There is no need to form or shim.

Although the above-mentioned embodiment demonstrated the case where the elastic body which comprises the press mechanism 80 is a spring, the elastic body is not limited to a spring, Elastomer, resin, etc. may be sufficient. Also in this case, the thing of appropriate elasticity modulus may be employ | adopted in consideration of the dimensional tolerances, such as a friction plate and a press plate.

The pressing mechanism is not limited to being composed of an elastic body, but may be composed of a rigid body. For example, a bolt or the like that mechanically pressurizes the piston 26a to press the friction plate and the pressurizing plate may be screwed onto the inner wall of the support portion 23, and a column-shaped rigid body is attached to the counterbore portion as the position holding portion 23d. You may make it intrude.

In addition, the pressure mechanism is constituted by a hydraulic system of another system driven by a battery or the like, pressurizes the piston 26a with pressure oil supplied from the hydraulic system of the other system, and the friction plate and the pressure plate are less than the pressure contact force by the pressure mechanism, Moreover, you may comprise so that it may be crimped more than the said minimum crimping force.

Moreover, you may install the above-mentioned press mechanism between the piston 26a which presses the press plate 22 and the friction plate 21, and the plate which opposes the piston 26a. For example, it is also possible to form the press mechanism which forms a counterbore part in the pressurizing surface of the piston 26a, a spring is hold | maintained in a counterbore part, and a plate is pressed by a spring.

Although the above-mentioned embodiment demonstrated the torque limiter of the structure which maintains the state in which the appropriate frictional force was applied to the friction plate and the pressure plate even if supply of the hydraulic fluid to a pressurization mechanism was stopped, the spring which isolates a friction plate and a pressure plate from a torque limiter is described. You may be provided with a pressure contact release mechanism.

For example, it is provided with a sensor which detects that the foreign material has entered into the crushing processing part, and a pressure contact release mechanism such as a spring which separates the friction plate from the pressure plate. When the foreign material is detected by the sensor, the pressure to the pressure piston is detected. A control device may be provided which stops the supply to operate the pressure welding release mechanism and stops the driver while the pressure welding release mechanism is operated.

As such a sensor, a vibration sensor which detects the ingress of a foreign material, an encoder sensor which detects the variation of the rotation speed of a crushing rotor, etc. can be used.

In the above-described embodiment, the configuration in which the vibration sensor 101 is provided at the proper position near the bearing 45 and the vibration sensor 102 at the proper position near the bearing 16 has been described. The installation position is not limited to this, and is an appropriate position capable of detecting the vibration of the output shaft 37 of the reduction mechanism 30 which is a transmission mechanism or the rotation shaft 5c of the crushing rotor 5 connected to the output shaft 37. It should be good.

Although the above-mentioned embodiment demonstrated the control apparatus provided with the state detection part comprised by the vibration sensor and the filter part, and the control apparatus which judges that the torque limiter operated when the output of the filter part exceeded the predetermined threshold value, this invention states It is not limited to using a vibration sensor for a detection part.

For example, even if a state detection part is comprised by the torque sensor (distortion gauge type) attached to the output shaft of a transmission mechanism or the rotating shaft of a driven device connected to the output shaft, and the filter part (differential filter) which draws a high frequency component from the output of a torque sensor, good.

As described above, when detecting the torque limiter acting on the rotating shaft by the torque sensor, the output of the torque limiter superimposes a low frequency noise component that varies due to electric noise or the state of the load on the driven side. Therefore, it is sometimes difficult to appropriately set a threshold for detecting output variations caused by the operation of the torque limiter.

However, when the low frequency noise component is removed and the high frequency component is drawn out by the filter unit, it is possible to appropriately detect the fluctuation of the instant when the required torque on the power-transfer side becomes more than the set torque, and set a predetermined threshold value at such an output. This makes it possible to accurately detect that the torque limiter has been operated when the output of the filter portion exceeds a predetermined threshold.

Moreover, the state detection part is comprised by the encoder which detects the rotation speed of the input shaft and the output shaft of a transmission mechanism, and a control apparatus is based on the output of an encoder, when the ratio of the rotation speed of the input shaft and the output shaft exceeded the predetermined threshold value in predetermined time. The torque limiter may be configured to determine that the operation has been performed.

For example, the rotation speed Na (rpm) of the input shaft and the rotation speed Nb (rpm) of the output shaft within the predetermined time detected by the encoder are the same as long as slippage does not occur between the friction plate and the pressure plate of the torque limiter. Indicates a value. However, in the case where the foreign material enters the rotary blade and the fixed blade, the input shaft and the rotation speed Na (rpm) and the rotation speed Nb (rpm) of the output shaft are slightly shifted or a rotation deviation occurs. The control device determines that the torque limiter has been operated when the absolute value of the ratio Na / Nb or the difference Na-Nb of the rotational speeds of the input shaft and the output shaft within a predetermined time exceeds a predetermined threshold.

In this way, when the ratio or the difference in the rotational speed of the input shaft and the output shaft within a predetermined time is detected based on the rotational speed of the input shaft and the output shaft of the transmission mechanism detected by the encoder, the in-phase variation of the input shaft and the output shaft, for example, a driver In the case of the electric motor, the state in which the rotational speed of the input shaft and the output shaft fluctuates together due to the change of the power supply voltage can be excluded, so that slippage of the friction plate and the pressure plate can be reliably detected.

Moreover, the state detection part is comprised by the encoder which detects the rotation speed of the output shaft of a transmission mechanism, and a control apparatus is a torque limiter when the fall rate of the rotation speed of an output shaft exceeded the predetermined threshold within the predetermined time based on the output of an encoder. May be configured to determine that the operation has been performed.

For example, when a foreign material enters the rotary blade and the fixed blade, the required torque on the driven transmission shaft side of the driven side is equal to or higher than the set torque, and the torque limiter operates. At this time, as shown in Fig. 17A, the output of the encoder decreases the rotational speed of the output shaft by Nc (rpm) at a predetermined time t (sec). If the reduction rate Nc / t of the rotational speed at this time is likely to exceed a predetermined threshold value, it is determined that the torque limiter has been operated.

However, in the case of a to-be-crushed object such as a bundle of magazines having a high load on shredding, as shown in Fig. 17B, the rotation speed of the output shaft decreases Nd (rpm) at a predetermined time t (sec). The torque limiter does not operate because the required torque on the power transmission shaft side of the synchronous side does not exceed the set torque.

As described above, when the rate of decrease of the rotational speed of the output shaft exceeds the predetermined threshold value within the predetermined time based on the output of the encoder, it can be determined that the rotational speed of the output shaft is reduced due to the entry of foreign objects, and the torque limiter operates. It is possible to detect reliably.

In addition, the specific structure of an encoder is not specifically limited, What is comprised by the gear attached to the shaft end part, and the laser sensor which detects the tooth of the gear, The gear attached to the shaft end part, and the electronic pickup which detects the tooth of the gear What is necessary is just to detect and convert the rotation of a rotating shaft into a pulse signal, such as comprised by a sensor.

Even in the case of using any of the above state detection units, the control device detects the operation of the torque limiter and not only controls the electric motor M to stop, but also rotates the crushing rotor in a state where foreign matter is inserted into the rotary blade and the fixed blade. You may control to stop this electric motor M by detecting this stop.

When using a vibration sensor or a torque sensor, it is good to set the lower limit threshold value of a sensor output appropriately, and when a control apparatus determines that the rotation of a crushing rotor stopped when the sensor output becomes below a lower limit threshold value.

Even when the encoder is used, the control device may detect that the sensor output falls below the lower limit threshold value, or that the rotation of the input shaft or output shaft has stopped, and determine that the rotation of the crushing rotor has stopped.

In addition, the rotation stop determination of the crushing rotor by the control device is preferably performed within a predetermined time (for example, several seconds) after detecting the operation of the torque limiter.

Even when the crushing rotor is stopped by rotation of the foreign material, the required torque on the power transmission side becomes less than the set torque, and the torque limiter automatically returns to the power transmission state. The damage of 30 can be reliably avoided.

In the above-described embodiment, the case where the torque limiter 20 is assembled inside the reduction mechanism 30 has been described. However, the torque limiter 20 is external to the reduction mechanism 30 and the output shaft 37 and the crushing rotor ( It may be provided between the rotating shaft 5c of 5), and although the reduction mechanism was demonstrated as an example of a transmission mechanism, the transmission mechanism of this invention is applicable also to a speed increasing mechanism.

In the above-described embodiment, power is transmitted from the gear of the output end to the friction plate by pressing the pressure plate provided on the output shaft side on the gear side of the output end and pressing the pressure plate to the friction plate with the friction material on both sides by the pressure mechanism. Although the configuration in which power is transmitted from the output shaft to the output shaft has been described, the pressure plate provided on the gear side of the output stage and the friction plate provided on the output shaft side with the friction material on both sides thereof are press-fitted by the pressure mechanism to power the gear from the output stage to the pressure plate. May be transmitted, and power may be transmitted from the friction plate to the output shaft.

That is, in the torque limiter, an annular friction plate and a pressure plate are arranged around the axis of the power transmission shaft, and either one of the friction plate and the pressure plate is rotationally driven by the transmission power from the power transmission shaft, and the other is both plates. Rotationally driven by the frictional force to transfer power to the power transmission shaft, and when the required torque on the power transmission shaft side becomes more than the set torque, the friction plate and the pressure plate slide, and the required torque on the power transmission shaft side is less than the set torque. In this case, the pressurizing mechanism which presses the pressurizing plate to the friction plate so that the friction plate and the pressurizing plate rotate integrally to transmit power to the power transmission shaft, and the pressurizing force between the pressurizing plate and the friction plate by the pressurizing mechanism are released. Pressure applied to the pressure plate and the friction plate in the depressurized state Good is provided with a pressing mechanism configured to grant.

In any case, when the power of the crushing rotor becomes more than the set torque, slippage occurs in the friction plate and the pressure plate, so that power can be transferred from the driver to the crushing rotor. Thereby, the possibility that an abnormal load is applied to the gear of the transmission mechanism can be avoided.

In the above-described embodiment, the case where the torque limiter 20 is a so-called wet multi-plate torque limiter has been described. However, the number of friction plates and press plates is appropriately selected depending on the electric motor, the transmission mechanism, the crushing rotor, and the like. In this case, a plurality of sheets may not necessarily be used and may be a single sheet. The torque limiter may be a dry torque limiter, and the pressure contact force between the friction plate and the pressure plate can be adjusted by pneumatic pressure, elasticity of the spring, or the like.

In the above-described embodiment, the bearings employed in the gear mechanism are not specified. For example, the bearings 38 are subjected to friction of the torque limiter 20 when the required torque on the output shaft 37 side becomes greater than or equal to the set torque due to the entry of foreign materials. When a slip is generated between the plate 21 and the pressure plate 22 and a relative rotation occurs, the fourth gear 36 and the output shaft 37 also slide and rotate relatively, so that the sliding bearing is suitable from the viewpoint of price and durability. Or rolling bearings are employed. For example, a solid lubricant dispersed sintered double bearing can be suitably used.

In the above-described embodiment, as described with reference to FIG. 7, the hydraulic oil is supplied to the pressurizing mechanism 26 in the reduction mechanism 30 to the supply pipe 51 for supplying the hydraulic oil to the hydraulic cylinder 3c of the press-fit pusher 3a. Although an example in which the hydraulic circuit 60 is configured such that the supply pipe 47 is branched and the hydraulic oil is supplied to each of the supply pipes 51 and 47 by one hydraulic pump 52 has been described, the pressurizing mechanism 26 And a hydraulic circuit for operating the hydraulic cylinder and the hydraulic cylinder 3c.

18 illustrates a hydraulic circuit 61 for operating the press mechanism 26. The hydraulic circuit 61 includes a hydraulic pump 62 driven by the motor 90, a drawing tube 63 for drawing lubricant oil in the reduction mechanism 30 into the hydraulic pump 62, and a hydraulic pump. To the supply pipe 64 and the supply pipe 64 which supply the lubricant oil drawn out by the 62 to the oil supply port 37d formed in the casing 39 of the reduction mechanism 30 as the working oil of the pressure mechanism 26. The lubricating oil branched and drawn by the hydraulic pump 62 is supplied to the oil supply port 37e formed in the casing 39 of the reduction mechanism 30 as cooling oil for cooling the friction plate 21 and the pressurizing plate 22. The supply piping 65 etc. which are mentioned are provided.

The drawing pipe 63 is provided with the gate valve 63a, and the drawing pipe 63 is interrupted | blocked by the gate valve 63a at the time of maintenance of the hydraulic pump 62 etc.

The pressure gauge 62a and the return flow path 62b are connected to the hydraulic pump 62, and the pump drain is conveyed into the casing 39 through the return flow path 62b.

The supply pipe 64 is equipped with the pressure gauge 64a and the pressure sensor 64b. The discharge pressure of the hydraulic oil supplied from the hydraulic pump 62 to the supply pipe 64 is set to the discharge pressure which can press-contact the friction plate 21 and the pressurizing plate 22 by the predetermined pressure mentioned above.

The supply pipe 65 is provided with a relief valve 65a for pressure reduction and a filter 65b for removing dust in oil, and a predetermined pressure in which the oil pressure in the supply pipe 65 on the upstream side of the relief valve 65a is set in advance. When abnormal, the relief valve 65a is opened and cooling oil is supplied to the supply pipe 65 on the downstream side.

The hydraulic oil supplied from the oil supply port 37d is supplied to the pressurizing mechanism 26 through the operating oil passage 37a formed in the output shaft 37 to press-contact the pressing plate 22 and the friction plate 21. Cooling oil supplied from the oil supply port 37e is supplied to the friction plate 21 and the pressure plate 22 through the cooling flow passage 37b to cool the friction plate 21 and the pressure plate 22 (see FIG. 5). ).

The hydraulic circuit for operating the hydraulic cylinder 3c supplies hydraulic oil to the deceleration mechanism 30, such as the supply pipe 47 branched from the supply pipe 51 from the hydraulic circuit 60 described in FIG. 7. It is possible to adopt a configuration in which the circuit elements 50, 55, 58 are removed.

Next, the control of the hydraulic pump 62 by the control apparatus 100 of the crushing apparatus 1 is demonstrated. When the start switch S1 is input, the control apparatus 100 starts the hydraulic pump 62 provided in the hydraulic circuit 61 which operates the pressurizing mechanism 26 initially, and the friction plate 21 and the pressure plate ( 22 is press-contacted, and the hydraulic pump 52 provided in the hydraulic circuit which operates the hydraulic cylinder 3c is started, and hydraulic oil is supplied to the hydraulic cylinder 3c.

The control apparatus 100 then starts the electric motor M, rotates the crushing rotor 5, and controls and press-fits the direction switching valve 53 provided in the hydraulic circuit which operates the hydraulic cylinder 3c. The forward drive or the backward drive of the pusher 3a is started.

When the stop switch S2 is input, the control device 100 controls the direction switching valve 53 to stop the driving of the press-fit pusher 3a, stops the electric motor M, and thereafter, the hydraulic pump 62. ), The supply of the pressurized oil to the friction plate 21 and the pressure plate 22 by the pressure mechanism 26 is stopped.

As described above, when the crushing apparatus 1 is started, the pressure mechanism 26 is operated to reliably press-contact the friction plate 21 and the pressure plate 22, and then the electric motor M is started. It is comprised so that the pressurizing mechanism 26 may be stopped after stopping (M).

Therefore, the friction plate 21 and the pressure plate 22 are always in a predetermined pressurization state during the starting of the shredding device 1, and foreign matter is fed into the rotary blade 6 and the fixed blade 7 so that the grinding rotor ( Unless a situation occurs in which the power of 5) becomes greater than or equal to the set torque, slippage does not occur in the friction plate 21 and the pressurizing plate 22, thereby reducing damage caused by crushing and wear caused by heat generation.

The control apparatus 100 detects the pressurization state by the pressurization mechanism 26 based on the output of the pressure sensor 64b at the time of the hydraulic pump 62 starting, and, when it deviates from a predetermined pressurization state, the electric motor M Prohibit starting. Moreover, the control apparatus 100 detects the pressurized state by the pressurized state by the pressurizing mechanism 26 based on the output of the pressure sensor 64b after starting, and when it deviates from the predetermined pressurized state, the motor M is turned off. Configured to stop. A switch for outputting a contact signal to the control device 100 when the pressure is lower than the predetermined pressure state is assembled in the pressure sensor 64b, and the control device 100 is configured to detect the pressurized state based on the contact signal of the switch. have.

Moreover, by changing the discharge pressure of the hydraulic pump 62, the pressure contact force of the friction plate 21 and the pressure plate 22 by the pressure mechanism 26 can be changed, and the friction plate 21 and the pressure plate 22 are changed. When the slip occurs, that is, the set torque at which power from the electric motor M to the crushing rotor 5 becomes undeliverable can be easily adjusted.

All of the above-described embodiments are examples of the present invention, and the present invention is not limited to the above description, and needless to say, the specific configuration of each part can be appropriately changed and designed in the range in which the effect of the present invention is exerted.

1: Shredding Device 3: Pusher Mechanism
3a: press-fit pusher 3b: arm
3c: Hydraulic cylinder 5: Driven (crushing rotor)
6: rotary blade 7: fixed blade
10: shred processing unit 12a: support (mounting mount)
12b: support (mounting mount) 20: torque limiter
21: friction plate 22: pressure plate
23: support portion 23d: position holding portion
30: transmission mechanism (deceleration mechanism) 31: input shaft
32: gear mechanism (first gear) 33: gear mechanism (second gear)
34: power transmission shaft (rotation shaft) 35: gear mechanism (third gear)
36: gear mechanism (fourth gear) 36a: annular recess
37: power transmission shaft (output shaft) 37a: working flow path
37b: cooling passage 39: casing
39a: upper edge portion 39b: lower edge portion
46: attachment portion 47: second flow path (supply piping)
49: return flow path (overflow piping) 50: pressure reducing valve
51: 1st flow path (supply piping) 53: switching valve (directional switching valve)
54: sequence valve 55: accumulator
56 pressure sensor 57 pressure adjustment mechanism
58: switching valve 60: hydraulic circuit
70: oil pump 80: pressure mechanism
100: control device M: driver (motor)
CL: centerline

Claims (26)

A power transmission mechanism having a transmission mechanism for transmitting power from a driver to a driven member:
An annular friction plate and a pressure plate are arranged around the shaft center of the power transmission shaft, and either one of the friction plate and the pressure plate is driven to rotate by the transmission power from the power transmission shaft, and the other is affected by the frictional force of both plates. Rotationally driven to transmit power to the power transfer shaft;
When the required torque on the power transmission shaft side is equal to or higher than a set torque, the friction plate and the pressure plate slide, and when the required torque on the power transmission shaft side is less than a set torque, the friction plate and the pressure plate rotate integrally. And a torque limiter having a pressurizing mechanism for pressurizing the pressurizing plate to the friction plate so that power is transmitted to the power transmission shaft. The power limiter is provided between the transmission mechanism or the transmission mechanism and the driven member. Transmission mechanism. The method of claim 1,
A gear at an output end of an output shaft of the transmission mechanism having an input shaft through which power is transmitted from the driver, an output shaft transmitting power to the driven member, and a gear mechanism transmitting power from the input shaft to the output shaft; Further, the friction plate and the pressure plate are disposed around the shaft center of the output shaft, power is transmitted from the gear of the output end to the friction plate or the pressure plate through a first engagement portion, and the output shaft from the other side. And a power transmission mechanism for transmitting power through the second engagement portion to the support portion which rotates integrally with the support. The method of claim 2,
The friction plate and the pressure plate are accommodated in an annular recess formed on the gear side of the output end, and an inner circumference of either the friction plate or the pressure plate and the side wall of the annular recess are engaged by the first engagement portion. And the support portion and the output shaft, which are integrally rotated with the other, are engaged by the second engagement portion. The method of claim 2,
And a plurality of the friction plates and the pressure plates are alternately arranged, and the pressure mechanism for pressing the pressure plate and the friction plate is provided on the support portion. The method of claim 3, wherein
A cooling flow path for supplying cooling oil to the contact surface between the friction plate and the pressure plate is formed on the output shaft through a gap between the inner sidewall of the annular recess and the support portion, and the lubricating oil inside the casing of the transmission mechanism is transferred to the cooling flow path. A power transmission mechanism comprising an oil pump for circulating and supplying the oil through. The method of claim 2,
The input shaft and the output shaft are accommodated in the casing formed so that the upper edge portion and the lower edge portion are symmetrical with respect to the center line, and the shafts of the input shaft and the output shaft are positioned on the center line so that the power from the driver is applied to the casing. The transmission mechanism is configured to be transmitted from a side surface to the input shaft, and the power of the output shaft is transmitted from the other side of the casing to the driven member, and the transmission mechanism is fixed to a support on both the upper edge portion and the lower edge portion. A power transmission mechanism comprising an attachment portion to make. The method of claim 2,
The output shaft is a power transmission mechanism, characterized in that it is composed of a hollow shaft for supporting the rotary shaft of the driven member. The method according to any one of claims 1 to 7,
And a predetermined contact state between the pressure plate and the friction plate is maintained after the pressure contact force between the pressure plate and the friction plate is released by the pressure mechanism. The method of claim 1,
And a state detecting unit for detecting the operation of the torque limiter and a control device for stopping the driver when it is determined that the torque limiter has been operated based on a signal from the state detecting unit. A power transmission mechanism having a transmission mechanism for transmitting power from a driver to a driven member:
An annular friction plate and a pressure plate are arranged around the shaft center of the power transmission shaft, and either one of the friction plate and the pressure plate is driven to rotate by the transmission power from the power transmission shaft, and the other is affected by the frictional force of both plates. Is rotated to drive power to the power transmission shaft, and when the required torque on the power transmission shaft side becomes equal to or greater than a set torque, the friction plate and the pressure plate slide, and the required torque on the power transmission shaft side is set. A pressure mechanism for pressing the pressure plate to the friction plate so that the friction plate and the pressure plate rotate integrally when the torque is less than the torque, so that power is transmitted to the power transmission shaft; and the pressure plate and the pressure plate by the pressure mechanism. Depressurized state with release of pressure to friction plate Standing in the power transmission mechanism, it characterized in that the pressure plate and a torque limiter provided with a pressing mechanism for imparting predetermined pressing force to the friction plate is provided between the transmission device or the transmission device and the to-be-synchronized. The method of claim 10,
The predetermined pressing force applied to the pressing plate and the friction plate by the pressing mechanism is less than the pressing force by the pressing mechanism, and also transmits the power of the power transmission shaft side to the power transfer shaft side in the press release state. A power transmission mechanism characterized by being set above a minimum required crimp force. The method of claim 10,
Gears of the output stage are provided on an output shaft of the transmission mechanism including an input shaft through which power is transmitted from the driver, an output shaft transmitting power to the driven member, and a gear mechanism transmitting power from the input shaft to the output shaft. In addition, the friction plate and the pressure plate is disposed around the shaft center of the output shaft, the power is transmitted from the gear of the output end to the friction plate or the pressure plate through the first engaging portion, the power from the other side And a pressurizing mechanism and said pressing mechanism provided in said support portion, said power mechanism being configured to transmit power through a second engagement portion to a support portion that is integrally rotated with the output shaft. The method of claim 12,
The pressing mechanism is provided between the pressing member and the supporting portion for pressing the pressing plate and the friction plate by the pressing mechanism, and the pressing mechanism releases pressure when the pressing force to the pressing member by the pressing mechanism is released. And a predetermined pressing force on the pressing member in a state. The method of claim 12,
And said pressing mechanism is composed of an elastic body. The method of claim 12,
And the pressing mechanism is held relative to the supporting portion by a position holding portion formed on the supporting portion. The method of claim 12,
And the pressing mechanism is inserted into contact with the pressing mechanism from an opening formed in the supporting portion, and is configured to apply a predetermined pressing force by a lid of the opening. The method of claim 12,
A plurality of friction plates and the pressing plate are accommodated so as to be alternately arranged in an annular recess formed on the gear side of the output end, and an inner circumference of either the friction plate or the pressing plate and a side wall of the annular recess are formed. A power transmission mechanism engaged with the first engagement portion, the other being engaged with the support portion and the second engagement portion. A crushing apparatus comprising a crushing processing unit for crushing a crushed object by a rotary blade fixed to the crushing rotor and a fixed blade disposed opposite the rotary blade, and a transmission mechanism for transmitting power from the driver to the crushing rotor. :
The friction plate is installed between the driver and the crushing rotor, and transmits power to the crushing rotor through the friction plate and the pressure plate pressed by the pressing mechanism, and when the torque of the crushing rotor becomes equal to or greater than a set torque, the friction plate And a torque limiter for causing slip on the pressing plate; And
A control device for operating the pressurizing mechanism at the start of the shredding device to press the friction plate and the pressurizing plate to start the driver and to stop the pressurizing mechanism after stopping the driving device at the time of stopping the shredding device. Shredding device comprising a. The method of claim 18,
And the control device detects a pressurized state by the pressurizing mechanism at the start of the shredding device and prohibits starting of the driver if it deviates from a predetermined pressurized state. The method of claim 18,
And the control device detects the pressurized state by the pressurizing mechanism after starting the crusher, and stops the driver if it deviates from a predetermined pressurized state. 21. The method according to claim 19 or 20,
A pusher mechanism for pressing the crushed object into the crushing treatment portion, and
A hydraulic circuit for driving the pusher mechanism and the pressurization mechanism;
The hydraulic circuit branch-connects a second flow path for supplying hydraulic oil to the pressurization mechanism from a pressure adjusting mechanism for supplying hydraulic oil at a predetermined flow rate to a first flow path for supplying hydraulic oil through a switching valve for forward and backward driving the pusher mechanism. And a pressure sensor for adjusting a pressure of the hydraulic oil supplied to the pressurizing mechanism in the second flow path, and a pressure sensor for detecting a pressurized state downstream of the pressure reducing valve;
And the control device detects the pressurized state by the pressurizing mechanism based on the output of the pressure sensor. A crushing processing unit for crushing the crushed object by a rotary blade fixed to the crushing rotor and a fixed blade disposed opposite to the rotary blade, a transmission mechanism for transmitting power from the driver to the crushing rotor, and the crushing processing unit A shredding device having a pusher mechanism for pressing a crushed object:
The friction plate is installed between the driver and the crushing rotor, and transmits power to the crushing rotor through the friction plate and the pressure plate pressed by the pressing mechanism, and when the torque of the crushing rotor becomes equal to or greater than a set torque, the friction plate And a torque limiter for generating slip on the pressing plate, and
A hydraulic circuit for driving the pusher mechanism and the pressurization mechanism;
The hydraulic circuit branch-connects a second flow path for supplying hydraulic oil to the pressurization mechanism from a pressure adjusting mechanism for supplying hydraulic oil at a predetermined flow rate to a first flow path for supplying hydraulic oil through a switching valve for forward and backward driving the pusher mechanism. And a pressure reducing valve for adjusting the pressure of the hydraulic oil supplied to the pressure mechanism in the second flow path, and a sequence valve for maintaining the hydraulic oil supplied to the pressure reducing valve at an upstream side of the switching valve. A shredding device, characterized in that it is provided. The method of claim 22,
And an accumulator on the downstream side of said pressure reducing valve provided in said second flow path for compensating for the pressure drop of the hydraulic oil supplied to said pressurizing mechanism at the time of unloading of said pressure regulating mechanism. The method of claim 22,
The torque limiter is assembled to a transmission mechanism, the gear of the output end is fitted into the output shaft of the transmission mechanism, and the friction plate and the pressure plate are arranged around the shaft center of the output shaft, and the friction plate and the gear from the gear of the output end. Power is transmitted to any one of the said press plates, and it is arrange | positioned so that power may be transmitted to the said output shaft from the other. The method of claim 24,
And an oil pump which is rotationally driven by the power from the driver and circulates and supplies the lubricating oil filled in the casing of the transmission mechanism to the torque limiter as cooling oil. The method of claim 22,
A crushing device, characterized in that a leakage flow of the working oil of the hydraulic circuit is used as lubricating oil of the transmission mechanism, and a return flow path for returning excess oil from the casing of the transmission mechanism to the oil tank of the hydraulic circuit is provided.

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