JP4741367B2 - Twig tree crusher - Google Patents

Description

  The present invention relates to a branch tree pulverizer.

In general, a branch-and-leaves tree crusher for crushing branches and leaves of a pruned tree is known. Such a branch tree pulverizer includes an input hopper that inputs branch trees, a branch tree drawing unit that pulls branch trees into the pulverizer body, and a pulverizer that pulverizes the drawn branch trees. I have.
The branch-and-leaves drawing section includes a loading table on which branches and trees are placed and fed, and a drawing roller disposed above the loading table and provided with a saw blade in the circumferential direction of the roller, and is loaded into a loading hopper. The twigs are drawn into the gap between the charging table and the drawing roller by the rotation of the drawing roller having the saw blade, and are forcibly sent to the pulverizing section.

  By the way, since the thickness of a branch tree is usually not uniform, conventionally, a spring is attached to the pull-in roller so that the gap between the pull-in roller and the input base varies according to the thickness of the branch tree that is sent. It was. In other words, for example, when using the tension force of a spring, a spring is installed between the pull-in roller and the charging stand, and when a thick branch tree is sent, the pull-in roller resists the spring tension. The gap between the moving table and the loading table is widened, and when a thin branch tree is sent, the pulling roller is pulled toward the loading table by the pulling force of the spring so that the gap is narrowed. (For example, Patent Document 1)

Japanese Patent Laying-Open No. 2005-88369 (pages 2-7)

  However, in such a branch tree crusher, the branch tree may get stuck between the pull-in roller and the charging stand. After removing the spring, the drawing roller has to be further pulled away from the loading table, and there is a problem that maintenance of the drawing roller is troublesome.

  An object of the present invention is to provide a branch tree pulverizer that can apply the elastic force of a spring to a pull-in roller without taking time and can easily maintain the pull-in roller.

  A branch-and-leaves tree crusher according to claim 1 of the present invention includes a crusher frame having a pair of cutouts opened upward, and branches and leaves dropped from above so as to be installed between the cutouts of the crusher frame. A pull-in roller for pulling in a tree, a support member pivotally supported on one end side, and a support member supported by a crusher frame so that the other end is rotatable, and the pull-in roller and the support member positioned in the notch A cover that covers from above and is supported by the crusher frame so as to be openable and closable on the side opposite to the other end of the support member, a base end side rotatably attached to one end side of the support member, and a tip A rod whose side is engaged with and disengaged from a projecting piece provided on the back surface of the cover as the cover is opened and closed, and a base end side of the rod and the projecting member inserted into the rod and engaged with the projecting piece Pressure between pieces The rod is disengaged from the projecting piece during the opening operation of the cover and engaged during the closing operation, and the drawing roller is in a state where the cover is opened. The support member is lifted off the notch portion of the pulverizer frame by the turning operation to one side, and is dropped between the notch portions by the turning operation to the other side.

According to the first aspect of the present invention, the rod is disengaged from the protruding piece during the opening operation of the cover, and the support member that pivots the drawing roller can be lifted in a state where the cover is opened. Therefore, the jammed material clogged between the drawing roller and the pulverizer can be removed and maintenance of the drawing roller can be performed without taking the trouble of removing the spring as in the prior art.
In addition, since the rod engages with the system stop during the closing operation of the cover, it is not necessary to install the spring between predetermined parts, and the elastic force of the spring can be applied only by a simple operation.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an overall perspective view showing a branch tree pulverizer 1 according to the present embodiment from an obliquely upper side, and FIG. 2 is a side view of the branch tree pulverizer 1.
1 and 2, the branch tree pulverizer 1 includes a crawler-type lower traveling body 2, an engine room 3 disposed on the lower traveling body 2, and a rear side (right side in the drawing) of the engine room 3. The operation lever unit 4 is disposed, and a crusher body 5 is disposed on the right front side (left side in the drawing) of the engine room 3.

  The lower traveling body 2 includes a pulley 21 that is belt-driven by an engine 31 in the engine room 3, and the rotation of the pulley 21 is transmitted to the left and right sprockets 22 through a transmission, and the sprocket 22, the front idler 23, The crawler 25 wound around the carrier roller 24 near the sprocket 22 rotates. Further, the pulley 21, the transmission, the idler 23, the carrier roller 24, and the like are attached to a metal lower frame 26 assembled in a planar frame shape.

  The engine room 3 is composed of a metal cover or the like that covers the engine 31 disposed therein, and includes a plurality of hatches 32 for engine 31 maintenance. An output shaft 33 of the engine 31 protrudes into a gap between the pulverizer body 5 and the output shaft 33 is provided with a plurality of groove pulleys 34. A belt 35 is wound around one groove of the pulley 34 and the pulley 21 of the lower traveling body 2, and the power of the engine 31 is transmitted as described above. Further, the power of the engine 31 is transmitted to the pulverizer body 5 by a belt 36 wound around another groove of the pulley 34 and a pulley 51 provided in the pulverizer body 5.

  The operation lever unit 4 includes a plurality of operation levers 41. The operation lever 41 includes a traveling lever that moves forward, backward, and turns on the spot by a transmission switching operation of the lower traveling body 2, and a clutch lever for crushing clutch operation (not shown) that transmits and cuts power to the pulverizer body 5. And a back stop lever or the like for stopping the lower traveling body 2 from retreating unexpectedly.

FIG. 3 is a side sectional view showing a main part of the pulverizer body 5.
In FIG. 3, the pulverizer body 5 includes a box-shaped pulverizer frame 52 made of a metal plate. A feeding hopper 53 for feeding the pruned branches and leaves is provided on the rear side of the crusher frame 52, and the branches and leaves put in the feeding hopper 53 are drawn into the crusher frame 52 toward the rotary rotor 54. A pulling roller 56 and a rotating rotor 54 for crushing the branches and leaves drawn with a crushing blade are provided. A shooter 55 is provided on the front side of the pulverizer frame 52 to discharge the crushed pieces of branches and leaves and deposit them on the ground or the like.

Hereinafter, a characteristic configuration in the present embodiment will be described in detail.
4 is an internal structural view showing the main part of the pulverizer body 5, FIG. 5 is a left side view showing the rotary rotor 54 and the drawing roller 56 supported by the side wall 57, and FIG. 6 is a view of the support member 58A. It is a right view.

  As shown in FIGS. 4 and 5, the rotary rotor 54 provided with the rotary shaft 60 is disposed by being dropped from above into a notch 57 </ b> A formed in the pair of side walls 57 constituting the grinder frame 52. ing. A bearing 59 is inserted into the rotating shaft 60 of the rotating rotor 54, and the bearing 59 is supported by a bearing receiver 67 fixed to the side wall portion 57 by a bolt 66. Such a rotary rotor 54 is rotationally driven via the pulley 51 fixed to the right end in FIG.

  The drawing roller 56 is pivotally supported via a bearing 590 on one end side of a pair of support members 58 (58A, 58B) that are rotatably fitted to the bearing receiver 67 at both ends. The drawing roller 56 supported by the support members 58A and 58B is dropped from above into a cutout portion 57B having an arc shape centering on the rotary rotor 54 disposed in the cutout portion 57A and having an opening formed upward. Rarely placed. That is, the drawing roller 56 is disposed so as to be rotatable about the rotation shaft 60 of the rotary rotor 54. At this time, the height position of the pull-in roller 56 from the pulverizer body 5 is adjusted by the support member 58 and the adjustment bolt 69 for adjusting the height position contacting each other.

  As shown in FIG. 6, a sprocket 62 is fixed to the end of the rotary rotor 54 supported on the support member 58A side. Chains 623 and 634 are wound around the sprocket 62, a pair of large and small sprockets 63 attached to the approximate center of the support member 58 </ b> A, and a sprocket 64 attached to the end of the drawing roller 56. Is transmitted to the drawing roller 56. In this embodiment, the rotation transmission mechanism that transmits the rotation of the rotary rotor 54 to the pull-in roller 56 includes the sprockets 62, 63, 64 and the chains 623, 624.

FIG. 7 is a right side view showing the main part of the pulverizer body 5 with the cover 61 closed.
As shown in FIG. 7, the crusher frame 52 includes a cover 61 at the top. The cover 61 is provided so as to be rotatable about one end side (left side in the figure), and is opposite to the rotation direction (reverse rotation) of the drawing roller 56 around the rotation shaft 60 of the rotation rotor 54. Direction).

  On both sides of the back surface of the cover 61, projecting pieces 80 formed in an inverted L shape downward are provided. The protruding piece 80 includes a support portion 82 formed from the distal end to the bent portion, a through hole 81 provided in the bent portion, and a locking portion 83 formed from the bent portion to the base end portion. Yes. And the front end side of the rod 70 rotatably inserted in the end part by the side of the drawing roller 56 of support member 58A (58B) is penetrated by the through-hole 81. As shown in FIG. For simplification of description, only the support member 58A side is shown and described.

  A spring 90 is inserted through the outer periphery of the rod 70. The lower end of the spring 90 is supported by a flange 71 provided on the rod 70, and the upper end of the spring 90 is pressed by a pressing member 73 locked near the through hole 81 on the locking portion 83. Further, a pin 72 for preventing the pressing member 73 and the spring 90 from popping out is inserted into the tip of the rod 70.

  As described above, since the pulling roller 56 is pressed downward by the elastic force of the spring 90 acting on the support members 58A and 58B, the pulling roller 56 is notched when a thick branch tree is sent. While escaping to the upper side in the rotational direction along the portion 57B, it can be eaten into the branches and leaves, and the branches and leaves can be reliably pulled in.

FIG. 8 is a right side view showing a state when the cover 61 is opened. FIG. 9 is a right side view showing a state in which the cover 61 is completely opened. FIG. 10 is a right side view showing a state at the time of maintenance of the drawing roller 56.
As shown in FIG. 8, as the cover 61 is opened, the tip of the rod 70 is gradually removed from the through hole 81 of the protruding piece 80. At the same time, the pressing of the spring 90 by the pressing member 73 locked on the locking portion 83 gradually weakens. When the tip of the rod 70 is removed from the through hole 81, the action of the elastic force of the spring 90 on the support members 58A and 58B is lost.

  As shown in FIG. 9, when the cover 61 is completely opened, the rod 70 does not get caught by the protruding piece 80 even if the support members 58 </ b> A and 58 </ b> B are rotated. Accordingly, as shown in FIG. 10, the support members 58 </ b> A and 58 </ b> B can be raised to a position where they abut on the front side of the pulverizer frame 52, and the pull-in roller 56 is lifted up to the pulverizer body 5. It is possible to remove the material sandwiched between the two and maintain the drawing roller 56.

  Further, in order to obtain the predetermined arrangement as shown in FIG. 7 from the state in which the cover 61 is opened, the rod 70 is tilted to the back side of the cover 61 and the cover 61 is closed as shown in FIG. Just go. Then, the tip end portion of the rod 70 is inserted into the through hole 81 while being supported by the support portion 82, and the pressing member 73 that holds the spring 90 is locked to the peripheral portion of the through hole 81 on the locking portion 83. Therefore, the spring 90 is gradually compressed, and when the cover 61 is fully closed, a downward force in the rotational direction due to the elastic force of the spring 90 acts on the support members 58A and 58B and eventually the pull-in roller 56.

  As described above, in this embodiment, simply by opening the cover 61 from the fully closed state of the cover 61 without taking the trouble of removing the spring 90, the action of the elastic force of the spring 90 applied to the support members 58A and 58B automatically. Disappear. Then, when the cover 61 is fully opened, the rod 70 can be caused to cause the support members 58A and 58B without being caught by the projecting piece 80, so that the pulling roller 56 is lifted and the material sandwiched between the grinder body 5 is removed. Removal and maintenance of the pull-in roller 56 can be performed by such a simple operation.

  Further, after the maintenance of the pull-in roller 56, it is not necessary to install the spring 90 between the predetermined parts, and only the simple operation of closing the cover 61 by tilting the rod 70 to the back side of the cover 61 is performed automatically. Thus, the elastic force of the spring 90 can be applied to the drawing roller 56.

The present invention is not limited to the above-described embodiment, and includes other constituent elements that can achieve the object of the present invention, and includes the following modifications and the like.
For example, the branch-and-leaves tree crusher 1 of the above embodiment is a self-propelled type, but is not limited thereto, and the present invention may be applied to a stationary type crusher.

  INDUSTRIAL APPLICABILITY The present invention can be used for a branch and tree pulverizer that pulverizes pruned branches and leaves.

BRIEF DESCRIPTION OF THE DRAWINGS The whole perspective view which shows the branch-tree pulverizer which concerns on one Embodiment of this invention from diagonally upward. A side view of a branch tree crusher. A side sectional view of a branch tree pulverizer. The internal structure figure which shows the principal part of a grinder main body. The left view which shows the rotation roller and the drawing roller which were supported by the side wall part. The right view of a supporting member. The right view which shows the principal part of the grinder main body of the state which closed the cover. The right view which shows a mode when a cover is opened. The right view which shows a mode that the cover was opened completely. The right view which shows the state at the time of drawing-in roller maintenance.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Branch tree pulverizer, 52 ... Crusher frame, 56 ... Pull-in roller, 57 ... Notch part, 58 ... Supporting member, 61 ... Cover, 70 ... Rod, 80 ... Projection piece, 90 ... Spring.

Claims (1)

A crusher frame having a pair of notches open upward;
A pull-in roller for pulling branches and trees dropped from above so as to be installed between the notches of the crusher frame;
A support member that is pivotally supported on one end side and is rotatably supported by the grinder frame on the other end side;
A cover that covers the pull-in roller and the support member located in the cutout portion from above, and is supported on the crusher frame so as to be freely opened and closed on the side facing the other end side of the support member;
A rod whose base end side is rotatably attached to one end side of the support member, and whose distal end side is engaged with and disengaged from a protruding piece provided on the back surface of the cover as the cover is opened and closed;
A spring inserted through the rod and compressed between the proximal end side of the rod in a state of being engaged with the projecting piece and the projecting piece;
The rod is disengaged from the protruding piece during the opening operation of the cover and is engaged during the closing operation,
In the state where the cover is opened, the pull-in roller is lifted off the notch portion of the crusher frame by the turning operation of the support member to one side, and the notching roller by the turning operation to the other side. A branch-and-leaves tree crusher that is dropped between the parts.

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