JP4829058B2 - Shear type crusher and crushing apparatus used therefor - Google Patents

Description

  The present invention relates to a shearing type crusher that shears and crushes an object to be crushed and a crushing apparatus used therefor.

  A shearing crushing device (shredder) has a crushing rotating body with a plurality of cutters attached to a rotating shaft, and is fixed to another crushing rotating body arranged in parallel or to a housing. For example, a material to be crushed, such as construction waste materials, household electrical appliances, plastic waste materials, and old tires, is sandwiched and sheared. In general, in such a crushing apparatus, a space (bearing chamber) in which a bearing for supporting a rotating shaft of a crushing rotating body is disposed is separated from a crushing chamber for crushing a material to be crushed by a cutter with a partition wall, and the bearing is separated from the crushed material. Protect.

  However, it is difficult to completely seal the partition between the stationary body and the rotating shaft, and the crushed material in the crushing chamber and the fragments of the material to be crushed from the gap between the partition and the rotating shaft ( Hereinafter, the crushed material and the like are collectively referred to as the bearing chamber as time elapses.

  Usually, the cleaning of the crushed material and the like that has entered the bearing chamber in this way is performed at the time of maintenance of the crushing device or when the cutter is replaced, and the crushing device is not disassembled only for cleaning the bearing chamber. However, the intervals for maintenance, cutter replacement, etc. vary depending on the user, and in some cases the bearings were damaged when disassembled.

  Therefore, as a countermeasure against crushed materials entering the bearing chamber, there is a configuration in which blades are attached to the rotating shaft of the crushed rotating body in the bearing chamber to scrape the crushed material that has entered the bearing chamber (Patent Document 1). Etc.).

JP 2005-224745 A

  However, the configuration of scraping the crushed material and the like that has entered the bearing chamber as in the prior art described above increases resistance and energy loss because the accumulated crushed material and the like are scratched with a blade. The configuration is also complicated and expensive. Moreover, even if this technology is applied to a shearing type crushing device, it is practically difficult to sufficiently prevent the accumulation of crushed materials in the bearing chamber. In the event that it has accumulated in the surroundings, the accumulated debris must be removed manually.

  However, in a shearing type crushing apparatus, a crushing rotating body is configured so that a cutter, a fixed blade, or the like of an adjacent crushing rotating body meshes with the crushing rotating body in order to shear and crush an object to be crushed. Therefore, the work of disassembling the crushing rotating body for cleaning the bearing chamber is a large-scale work in which the cutters and spacers are removed one by one in order after removing the hopper and the like. And takes time. Moreover, a crane is required for the operation | work which removes such a heavy load, and the worker who has a considerable skill is also required.

  The present invention is intended to solve the above-described problems, and provides a shearing crusher that can easily and quickly clean a bearing chamber even for an operator who does not have advanced skills, and a crushing apparatus used therefor The purpose is to do.

  (1) In order to achieve the above object, the present invention provides a main body frame, a crushing device provided on one side in the longitudinal direction of the main body frame, for shearing and crushing a material to be crushed, and an upper portion of the crushing device. A hopper that is provided and has a shape that expands upward to introduce an object to be crushed into the crushing device, and a crush that extends from the lower position of the crushing device toward the outside of the machine and is crushed by the crushing device. A crushing device that includes a conveyor and a plurality of rotating shafts that extend along a longitudinal direction of the housing and are rotatably supported with respect to the housing via bearings. A plurality of cutters having a center hole through which the rotating shaft passes; a plurality of spacers having a center hole through which the rotating shaft passes; and a plurality of spacers incorporated into the rotating shaft from one side in the axial direction alternately with the cutter; A plurality of cleaners which are assembled to the housing alternately from the one side in the axial direction of the rotary shaft alternately with the cutter, and which are close to the facing surface of the cutter adjacent to the width direction of the housing and the axial direction of the rotary shaft. And the cutter or the spacer positioned at both axial ends of the rotary shaft so as to separate a crushing chamber in which the cutter, the spacer, and the cleaner are arranged and opened at the upper and lower sides from a space that accommodates the bearing in the housing. A partition wall provided in the housing so as to be opposed in the axial direction, and the partition wall includes an upper end portion thereof and a rotation locus of the outermost peripheral portion of the cutter as viewed from the axial direction of the rotation shaft It has a divided partition formed by dividing it with other parts so as not to overlap with the cleaner. Description spatial communicates with the crushing chamber.

  (2) In order to achieve the above object, the present invention also provides a main body frame, a crusher provided on one side in the longitudinal direction of the main body frame, for shearing and crushing the object to be crushed, and an upper portion of the crusher A hopper having a shape that expands upward to introduce a material to be crushed into the crushing device, and extends from the lower position of the crushing device toward the outside of the machine, and is crushed by the crushing device. A conveyor for discharging the crushed material out of the machine, and the crushing device includes a housing, a rotating shaft rotatably supported by a bearing via a bearing, and a plurality of central holes through which the rotating shaft passes. A cutter, a plurality of spacers having a central hole through which the rotating shaft passes and alternately incorporated into the rotating shaft from one side in the axial direction, and a crushing chamber in which the cutter and the spacer are arranged and opened vertically A partition provided in the housing so as to be separated from a space in which the bearing is accommodated in the housing, and the partition has a divided partition that is divided from the other part in an upper part, When this divided partition is removed, the space accommodating the bearing communicates with the crushing chamber.

  (3) In the above (1) or (2), preferably, a labyrinth seal that seals a gap between the rotating shaft and the partition is provided.

  (4) In order to achieve the above object, the present invention also provides a crushing apparatus for shearing and crushing an object to be crushed, a housing, and a rotary shaft rotatably supported by the housing via a bearing; A plurality of cutters having a center hole through which the rotating shaft passes; a plurality of spacers having a center hole through which the rotating shaft passes; and a plurality of spacers incorporated into the rotating shaft from one side in the axial direction alternately with the cutter; A partition provided in the housing so as to separate a crushing chamber in which a spacer is disposed and the top and bottom are open from a space accommodating the bearing in the housing, and the partition is above the rotation center of the rotating shaft. A partition wall that is divided from other parts is provided, and when this partition wall is removed, the space accommodating the bearing communicates with the crushing chamber.

  According to the present invention, if the partition wall is removed from the partition wall, the space containing the bearing can be accessed from the crushing chamber side, so even a worker without advanced skills can easily and quickly remove the bearing chamber. Can be cleaned.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view showing the overall structure of a shearing crusher according to an embodiment of the present invention. In the following, the direction corresponding to “left / right” in FIG. 1 is referred to as “rear / front” or “one / other”.
As shown in FIG. 1, the shearing crusher of the present embodiment is a self-propelled crusher provided with a traveling body 1, a crushing device 12 that shears and crushes an object to be crushed, and the crushing device. 12 includes a hopper 11 for introducing a material to be crushed, a discharge conveyor 24 for discharging the crushed material crushed by the crushing device 12 to the outside of the machine, and a power device 9 as a power source for each of the mounted operating devices. Yes.

  The traveling body 1 includes a traveling device 2 and a main body frame 3 provided on the traveling device 2. The traveling device 2 is connected to the track frame 4, driven wheels 5 and drive wheels 6 provided at both ends of the track frame 4, crawler belts 7 wound around the driven wheels 5 and drive wheels 6, and the drive wheels 6. It is comprised with the drive device 8.

  The power unit 9 is provided on the other side in the longitudinal direction of the main body frame 3 via a support member 10. Although not specifically shown to prevent congestion, the power unit 9 switches and supplies the engine, a pump driven by the engine, and hydraulic oil from the pump to each hydraulic drive unit such as the drive unit 8 of the traveling unit 2. And a control valve device including a plurality of control valves.

  The hopper 11 plays a role of receiving a material to be crushed (for example, construction waste material, household electrical appliance, plastic waste material, old tire, etc.) as a recycle material input by an input heavy machine such as a hydraulic excavator and guiding it to the crushing device 12. The crushing device 12 is provided at the top. The hopper 11 has a shape whose diameter is increased upward in order to reliably receive the object to be crushed. In other words, the diameter of the hopper 11 is reduced from the large opening portion toward the upper opening of the crushing device 12.

  The crushing device 12 in the present embodiment is a so-called biaxial shredder. The crushing device 12 is a crushing device that is provided on one end portion in the longitudinal direction of the main body frame 3 and shears the object to be crushed received by the hopper 11 to a predetermined size and discharges it downward. The hopper 11 is detachably attached to the upper portion of the housing 13 of the crushing device 12 with, for example, a bolt or the like. Further, the drive unit 14 including the drive transmission mechanism of the crushing device 12 is provided on the front side of the crushing device 12 on the main body frame 3. The details of the internal structure of the crushing device 12 will be described later.

  A chute 23 provided below the crushing device 12 is provided below the crushing device 12, and the crushed material that has been crushed by the crushing device 12 and discharged downward is placed on the discharge conveyor 24 via the chute 23. It has come to be.

  The discharge conveyor 24 plays a role of conveying the crushed material guided from the crushing device 12 through the chute 23 and discharging it out of the machine. The discharge conveyor 24 is disposed so as to rise upward from the lower position of the crushing device 12 toward the conveying direction (front side), and is suspended from the main body frame 3 and the power device 9 via support members 25 and 26, respectively. It is supported by lowering. A conveyor belt 30 is wound around drive wheels 28 and 29 provided at both ends of the conveyor frame 27 of the discharge conveyor 24, and the drive wheels 28 are rotationally driven by a drive device (not shown) directly connected to the drive wheels 28. Then, the conveyor belt 30 is configured to circulate. Note that side covers 32 are provided on both sides of the conveyor frame 27 in the width direction (vertical direction in FIG. 2) of the discharge conveyor 24 to protect the crushed material from the wind.

2 is a top view showing the detailed structure of the crushing device 12 in a partial cross section, and FIG. In these drawings, the same parts as those in the previous drawings are given the same reference numerals, and the description thereof is omitted.
As shown in FIGS. 2 and 3, the crushing device 12 scrapes off the housing 13, the two crushing rotating bodies 18 that are rotatably supported with respect to the housing 13, and the crushing material adhering to the crushing rotating body 18. A cleaner 22 is provided.

  The housing 13 is disposed with its longitudinal direction coinciding with the longitudinal direction of the main body frame 3. The housing 13 includes side plate portions 13a on both sides in the width direction (vertical direction in FIG. 2) of the crushing device 12, front brackets 13b fixed to the front end portions of the side plate portions 13a by bolts 21, and rear sides of the side plate portions 13a. A rear bracket 13c fixed by a bolt 21 at a side end portion, and two support plates 13d and 13e fixed between both side plate portions 13a in a drive portion 14 in the housing 13 are provided. In addition, partition walls 36 and 37 that define the front and rear of a crushing chamber 34 (described later) are fixed between the side plate portions 13a between the rear bracket 13c and the support plate 13e.

  Bearings 20a, 20b, and 20c that support the crushing rotating body 18 are supported by the rear bracket 13c and the support plates 13e and 13d. Two of these bearings 20 a, 20 b, and 20 c are provided at intervals along the width direction of the crushing device 12.

  The crushing rotating body 18 includes a rotating shaft 15 and a cutter 16 and a spacer 17 attached to the rotating shaft 15.

  The two rotary shafts 15 extend along the longitudinal direction of the housing 13 and are rotatably supported by the housing 13 (rear side bracket 13c and support plates 13e and 13d) via bearings 20a to 20c. . The upper rotary shaft 15 in FIG. 2 passes through the rear bracket 13c, the partition walls 37 and 36, and the support plates 13e and 13d, the front end portion is accommodated in the drive unit 14, and the rear end portion is the rear bracket. It is exposed behind 13c (outside the housing). On the other hand, the lower rotary shaft 15 in FIG. 2 passes through the rear bracket 13c, the partition walls 37 and 36, the support plates 13e and 13d, and the front bracket 13b, and the front end portion is located on the front side and the rear side of the front bracket 13b. The end is exposed to the rear side of the rear bracket 13c. That is, both front and rear ends are exposed outside the housing. In this example, the output shaft of the crushing drive device 38 (see FIG. 1) is connected to the front end portion of the rotary shaft 15 shown on the lower side in FIG. 2 via, for example, a coupling (not shown). . Further, the rear end portions of both rotary shafts 15 exposed outside the housing are protected by a cover 50.

  A gear 19 is provided on the other axial side of the rotary shafts 15 so as to be positioned between the bearings 20b and 20c in the drive unit. The gears 19 of the adjacent rotary shafts 15 mesh with each other, and when the rotary shaft 15 to which the drive device 38 is connected is driven by the drive device 38, the driving force is transmitted to the other rotary shaft 15 by the gear 19. Then, both rotary shafts 15 rotate in opposite directions. As a result, the object to be crushed introduced through the hopper 11 is sandwiched between the cutters 16 and 16 and sheared into pieces to be crushed into a predetermined size.

  The cutter 16 and the spacer 17 have a substantially rectangular center hole 39 through which the rotating shaft 15 passes. The both rotating shafts 15 are passed through the center hole 39 and assembled to the rotating shaft 15 alternately from one side in the axial direction. It is done. The cutter 16 has a plurality of teeth 16a (see FIG. 3), while the spacer 17 is formed in a disk shape. As shown in FIG. 3, the radius of these cutters 16 and spacers 17 and the distance between both rotary shafts 15 correspond to the rotational trajectory of the outermost periphery of the cutter 16 (two-dot chain line in FIG. 3) in the axial position ( It is set so as to be close to the outer peripheral portion of the spacer 17 (opposing in the width direction of the housing), and the rotation trajectories of the cutters 16 of both crushing rotating bodies 18 are partially overlapped when viewed from the axial direction of the rotary shaft 15.

  At this time, upper and lower presser plates 33a and 33b having an L-shaped cross section are fixed to the inner wall (wall surface on the rotating shaft side) of the side plate portion 13a of the housing 13 by the bolt 21 with the slit portion 33c facing each other. The support plate portion 22a of the cleaner 22 is fitted into the slit portions 33c of the press plates 33a and 33b, and the cleaner 22 is fixed to the side plate portion 13a by the press plates 33a and 33b. The dimension taken in the axial direction of the rotating shaft of the support plate portion 22a of each cleaner 22 is substantially equal to the axial pitch of the cutter 16, and the cleaner 22 and the spacer 17 and the slits of the presser plates 33a, 33b alternately with the cutter 16 in the axial direction. A plurality of parts are incorporated in the part 33c.

  The cleaner 22 (a plate-like portion facing the spacer) is slightly thinner than the spacer 17 in order to avoid contact with the cutter 16, and the cleaner 22 comes close to the facing surface of the cutter 16 facing in the axial direction. Further, as shown in FIG. 3, the portion of the cleaner 22 facing the spacer 17 is formed in an arc shape following the outer peripheral portion of the spacer 17, and the arc surface is close to the outer peripheral surface of the spacer 17. Thereby, the crushed material and the like adhering to the cutter 16 and the spacer 17 are scraped off by the cleaner 22, and the cleaner 22 partially overlaps the cutter 16 when viewed from the axial direction.

  Thus, since the cutter 16 overlaps with the cutter 22 and the cleaner 22 of the adjacent crushing rotating body 18 as viewed from the axial direction, the cutter 16 and the two rotating shafts 15 adjacent to each other in the crushing chamber 34 are staggered. The spacers 17 are assembled alternately. Further, when the spacer 17 is assembled, the corresponding cleaner 22 is also incorporated into the slit 33c of the pressing plates 33a and 33b.

  The partition walls 36 and 37 constitute the front and rear wall surfaces of the crushing chamber 34 in which the cutter 16, the spacer 17, and the cleaner 22 are arranged in this way, and are bearings that are spaces that accommodate the bearings 20 b and 20 a in the housing 13. The chambers 35a and 35b and the crushing chamber 34 are separated. The partition walls 36 and 37 are provided on the support plate 13e and the rear bracket 13c constituting the housing 13 so as to face the cutter 16 or the spacer 17 positioned at both ends in the axial direction of the rotary shaft 15 in the axial direction. The bolt 21 is fixed to the female screw portion 42. Further, the upper and lower sides of the crushing chamber 34 for receiving the object to be crushed, crushing it, and discharging it downward are open, whereas the upper surfaces of the bearing chambers 35a and 35b that are apt to dispose of foreign matter are the top plate 40 (see FIG. 3) Covered with.

  At this time, the partition walls 36 and 37 are provided with fitting holes in which the collars 41 attached to the rotating shaft 15 are fitted, and the collar 41 rotating together with the rotating shaft 15 rotates within the fitting portions of the partition walls 36 and 37. It is like that. Therefore, a gap is generated between the partition walls 36 and 37 that are stationary bodies and the rotary shaft 15 (collar 41) that is a rotating body. Therefore, in the present embodiment, a seal member 43 formed of a ring-shaped plate member having an inner diameter smaller than the fitting hole of the collar 41 is fixed to the surfaces of the partition walls 36 and 37 on the bearing chambers 35a and 35b side. A step is provided in the fitting hole. As a result, when viewed from the axial direction, the labyrinth seal structure in which the seal member 43 interferes with the gap between the collar 41 and the partition walls 36 and 37 is formed.

  Further, the partition walls 36 and 37 are provided with divided partitions 36 b and 37 b which are divided from other portions (partition body 36 a and 37 a) above the rotation center of the rotary shaft 15. FIG. 3 shows only the partition wall main body 36a and the divided partition wall 36b. The partition body 37a and the divided partition wall 37b are essentially the same. The structure for fixing the divided partition walls 36b and 37b is the same as the structure for fixing the partition walls 36 and 37 to the housing described above, and is fixed with bolts 21 to the female screw portions 42 provided on the support plate 13e and the rear bracket 13c. Has been.

  Further, in this example, the divided partition walls 36 b and 37 b are formed in a rectangular shape elongated in the width direction of the housing, and include the upper end portions of the partition walls 36 and 37 and the outermost peripheral portion of the cutter 16 when viewed from the axial direction of the rotary shaft 15. The size and shape are determined so as not to overlap the rotation locus and the cleaner 22. Therefore, when the bolt 21 is removed, the divided partition walls 36 b and 37 b do not interfere with the cutter 16, the spacer 17, and the cleaner 22, and therefore can be pulled out to the crushing chamber 34 side and removed from the housing 13. When the partition walls 36b and 37b are removed, the bearing chambers 35a and 35b communicate with the crushing chamber 34, and the bearing chambers 35a and 35b can be accessed from the crushing chamber 34 side.

Next, the operation of the shear crusher having the above-described configuration will be sequentially described.
For example, when a material to be crushed is introduced into the hopper 11 by a loading heavy machine such as a hydraulic excavator, the material to be crushed received by the hopper 11 is guided to the crushing device 12 and is shredded into a predetermined size by the crushing device 12. . The crushed material discharged from the crushing device 12 is guided onto the discharge conveyor 24 from the crushing device 12 through the chute 23 and is discharged to the outside (in this case, the front side) by the discharge conveyor 24.

The operational effects obtained by the shearing crusher of the present embodiment described above are as follows.
As shown in FIG. 2, in this embodiment, the bearing chambers 35a and 35b and the crushing chamber 34 are separated by partition walls 36 and 37, respectively, and the bearings 20b and 20a before and after the crushing chamber 34 are protected from crushed materials. ing. At this time, there is a gap between the partition walls 36 and 37 which are stationary bodies and the rotary shaft 15 (strictly the collar 41) which is a rotating body. There is a risk that crushed materials and the like may enter the bearing chambers 35a and 35b from the crushing chamber 34 side through this gap, but it is difficult to completely seal the gap.

  Therefore, in the present embodiment, the upper portions of the partition walls 36 and 37 (divided partition walls 36b and 37b) are divided from the partition body 36a and 37a. In addition, since the partition walls 36b and 37b are formed so as not to interfere with the cutter 16 and the cleaner 22 when viewed from the axial direction, the cutter 16 and the cleaner 22 are avoided when the bolt 21 is removed and the fastening with the housing 13 is released. And can be easily removed by pulling it to the crushing chamber 34 side. After the partition walls 36b and 37b are removed, the upper portions of the partition walls 36 and 37 are opened so that the bearing chambers 35a and 35b can be viewed from the crushing chamber 34 side, so that workers are created above the partition walls 36 and 37. It is also easy to scrape the crushed material and the like accumulated by inserting a tool through the opening while watching the inside of the bearing chambers 35a and 35b from the opened opening.

  As described above, in the case of the present embodiment, the bearing chambers 35a and 35b can be accessed from the crushing chamber 34 side simply by removing the divided partitions 36b and 37b above the partition walls 36 and 37. There is no troublesome work of removing the cleaners 22 one by one in order and reassembling them one by one after the cleaning is completed. A crane or the like for disassembling / reassembling the crushing rotating body 18 is not required, and the skill of the worker is not required. Of course, less personnel are required than large-scale work using a crane.

  Further, since it does not take time to attach and detach the partition walls 36b and 37b, it is not necessary to synchronize the cleaning timing of the bearing chambers 35a and 35b with the timing of periodic maintenance or cutter replacement, and the bearing chambers 35a and 35b can be installed whenever necessary. Can be cleaned. Furthermore, since the structure is simple, it can be easily applied to an existing shearing crusher as well as a newly manufactured shearing crusher.

  As described above, according to the present embodiment, even a worker who does not have high skill can clean the bearing chambers 35a and 35b easily and in a short time. Moreover, it can be realized with a simple configuration, and the cleaning time is not limited.

  Needless to say, when the attaching / detaching operation of the divided partition walls 36b and 37b and the cleaning operation of the bearing chambers 35a and 35b are performed, it is necessary to stop at least the engine so that the crushing rotating body 18 does not rotate. In order to prevent the rotation of the crushing rotary body 18, the driving device 38 of the crushing rotary body 18 is preferably a closed circuit hydraulic circuit that holds the pressure oil when pressure oil is not supplied.

  In the case of the present embodiment, since the labyrinth seal structure is formed between the rotary shaft 15 (collar 41) and the partition walls 36 and 37, the amount of intrusion of crushed material or the like from the crushing chamber 34 into the bearing chambers 35a and 35b. Can also be suppressed as compared with the prior art.

  In the above description, the case where the divided partition walls 36b and 37b are made of rectangular members that do not interfere with the cutter 16 or the cleaner 22 has been described as an example. However, the shape, size, position, and the like of the divided partition walls are illustrated in FIG. It is not limited to the embodiment. For example, it may be formed along the rotation trajectory of the cutter 16 or the cleaner 22 even if it is not rectangular, and the partition walls 36 and 37 may be opened larger. Further, even if the divided partition walls 36b and 37b are not configured to include the upper ends of the partition walls 36 and 37, the partition wall bodies 36a and 37a may be surrounded by the periphery.

  Furthermore, when the top plate 40, the hopper 11 and the like covering the upper portions of the bearing chambers 35a and 35b interfere with the upper portions of the partition walls 36 and 37, the divided partition walls 36b and 37b must be pulled out to the crushing chamber 34 side and removed. If the partition walls 36b and 37b can be removed integrally with a part of the top plate 40, or the divided partition walls 36b and 37b extend to the height of the top plate 40 (the upper surface of the housing 13), the bolt 21 can be fastened. Since the unraveled divided partition walls 36b and 37b can be pulled out and removed as they are, restrictions imposed on the cutter 16, the spacer 17 and the cleaner 22 on the size and shape of the divided partition walls 36b and 37b are greatly reduced.

  In addition, the case where the present invention is applied to a biaxial shredder has been described as an example, but a uniaxial shearing crushing device that shears an object to be crushed between a crushing rotating body and a fixed blade, or three or more axes. The present invention can also be applied to the shearing crushing apparatus. Moreover, although the case where this invention was applied to the shearing type crushing apparatus in which the rotating shaft of the crushing rotating body extends in the longitudinal direction of the main body frame is taken as an example, the invention is not limited to this, for example, crushing rotation in the direction orthogonal to the main body frame It is good also as a structure where the rotating shaft of a body extends. Moreover, although the case where this invention was applied to the shearing type crushing device of the structure which transmits the driving force of one drive device 38 to two rotating shafts with the gear 19 was mentioned as an example, each rotation was carried out without using a gear. It is good also as a structure which connects a drive device to each axis | shaft.

  Moreover, although the case where this invention was applied to the self-propelled crusher which extended the discharge conveyor 24 to the front side (right side in FIG. 1) was mentioned as an example, the discharge conveyor was back side (left side of FIG. 1). The present invention can also be applied to a self-propelled crusher extended to the above. Moreover, although the case where it applied to the self-propelled crusher provided only with the discharge conveyor 24 as an auxiliary machine which performs work in relation to the crushing work by the crushing device 12 was described as an example, for example, the crushed material on the discharge conveyor 24 The present invention can also be applied to a device equipped with a so-called magnetic separator that removes foreign matters such as reinforcing bars mixed in the steel. Furthermore, this invention is applicable not only to a self-propelled working machine but to a stationary shear crusher.

It is a side view showing the whole structure of the shearing type crusher which concerns on one embodiment of this invention. It is a top view showing the detailed structure of a crushing apparatus with a partial cross section. It is sectional drawing by the III-III cross section in FIG.

Explanation of symbols

3 Body frame 11 Hopper 12 Crushing device 13 Housing 15 Rotating shaft 16 Cutter 17 Spacer 20a-c Bearing 22 Cleaner 24 Conveyor 34 Crushing chamber 35a, b Bearing chamber 36, 37 Partition 36a, 37a Partition body 36b, 37b Partition partition 39 Central hole 43 Sealing member

Claims (4)

Body frame,
A crushing device that is provided on one side in the longitudinal direction of the main body frame and shears and crushes the object to be crushed,
A hopper provided in the upper part of the crushing device and having a shape that expands upward toward the object to be crushed into the crushing device;
A conveyor extending from the lower position of the crushing device toward the outside of the machine, and discharging the crushed material crushed by the crushing device to the outside of the machine,
The crushing device
A housing;
A plurality of rotating shafts extending along the longitudinal direction of the housing and rotatably supported with respect to the housing via bearings;
A plurality of cutters having a central hole through which the rotating shaft passes;
A plurality of spacers that have a central hole through which the rotating shaft passes and are incorporated into the rotating shaft from one side in the axial direction alternately with the cutter;
A plurality of spacers, which are assembled to the housing alternately with the cutter from one axial direction of the rotating shaft together with the spacers, and which are close to the facing surface of the spacer adjacent to the width direction of the housing and the cutter adjacent to the axial direction of the rotating shaft. With the cleaner
With respect to the cutter or the spacer located at both axial ends of the rotary shaft so as to separate the crushing chamber in which the cutter, the spacer, and the cleaner are arranged and opened in the upper and lower directions from the space in the housing in which the bearing is accommodated. And a partition wall provided in the housing so as to face in the axial direction,
The partition includes a partition wall formed by dividing the partition with other portions so as not to overlap the rotation locus of the cutter and the cleaner as viewed from the axial direction of the rotating shaft, including the upper end portion thereof. A shearing type crusher characterized in that when the divided partition wall is removed, the space accommodating the bearing communicates with the crushing chamber. Body frame,
A crushing device that is provided on one side in the longitudinal direction of the main body frame and shears and crushes the object to be crushed,
A hopper provided in the upper part of the crushing device and having a shape that expands upward toward the object to be crushed into the crushing device;
A conveyor extending from the lower position of the crushing device toward the outside of the machine, and discharging the crushed material crushed by the crushing device to the outside of the machine,
The crushing device
A housing;
A rotating shaft rotatably supported via a bearing with respect to the housing;
A plurality of cutters having a central hole through which the rotating shaft passes;
A plurality of spacers that have a central hole through which the rotating shaft passes and are incorporated into the rotating shaft from one side in the axial direction alternately with the cutter;
A partition provided in the housing so as to separate the crushing chamber in which the cutter and the spacer are arranged and opened in the upper and lower sides from the space in the housing containing the bearing,
The partition wall has a partition wall that is divided from the other part in the upper part, and when the partition wall is removed, the space containing the bearing communicates with the crushing chamber. Machine.   3. The shear crusher according to claim 1, further comprising a labyrinth seal that seals a gap between the rotating shaft and the partition wall. In a crushing device that shears and crushes objects to be crushed,
A housing;
A rotating shaft rotatably supported via a bearing with respect to the housing;
A plurality of cutters having a central hole through which the rotating shaft passes;
A plurality of spacers that have a central hole through which the rotating shaft passes and are incorporated into the rotating shaft from one side in the axial direction alternately with the cutter;
A partition provided in the housing so as to separate a crushing chamber in which the cutter and the spacer are arranged and opened in the upper and lower sides from a space in the housing containing the bearing,
The partition wall has a partition wall that is divided from the other part in the upper part, and when the partition wall is removed, the space accommodating the bearing communicates with the crushing chamber.

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