JP3215462U - Trommel - Google Patents

Abstract

To provide a trommel that can protect a rotary sieve from debris and can level the debris squeezed from the rotary sieve. A trommel 10 mounted on an arm 8 of a self-propelled working machine 1 for sieving debris includes a cylindrical rotary screen 30 and a main body frame 20 having a storage portion 21 for rotatably storing the rotary screen 30. And a pair of plate-like members 60 having a function of protecting the rotary sieve 30 from debris and a function of smoothing the debris sieved from the rotary sieve 30 are provided at the lower end portion of the main body frame 20. The plurality of plate-like members 60 are arranged so as to extend in a direction parallel to the length direction of the pair of lower connection frames 25 of the main body frame 20 and project downward from the pair of lower connection frames 25. Are respectively attached to the pair of lower connecting frames 25 and provided in an inclined manner. [Selection] Figure 1

Description

  The present invention relates to a trommel that is attached to an arm of a work machine and is used to screen out debris.

  Conventionally, as a trommel to be mounted on an arm of a work machine, one in which a rotary sieve is rotated by a drive unit having a hydraulic motor or the like has been practically used (for example, Patent Document 1). This type of trommel has a main body frame, and the main body frame has a housing portion that rotatably accommodates the rotary sieve, and the so-called backhoe type trommel has a front frame having the driving portion and an excavator. A rear frame, and a plurality of connecting frames connecting the front frame and the rear frame.

JP 2009-262039 A

  In the trommel like Patent Document 1, the main body frame is formed in a lattice shape, and at least the lower surface side of the main body frame is formed with an opening for discharging the debris screened by the rotary sieve to the outside. When the soil or the like is put into the rotary sieve with a shovel, the rotary sieve may come into contact with the earth and be damaged. Moreover, in such a main body frame, the debris screened out by the rotary sieve cannot be made well, and if the debris is tried, the rotary sieve comes into contact with the debris and may be damaged.

  An object of the present invention is to provide a trommel that can prevent the rotating sieve from coming into contact with the debris and break it, and can smoothen the debris squeezed from the rotating sieve.

  The invention of claim 1 is a trommel that is attached to an arm of a work machine for sieving earth and stone, and includes a cylindrical rotary sieve and a main body frame having a receiving portion that rotatably accommodates the rotary sieve, A plurality of plate-like members having a function of protecting the rotary sieve from debris and a function of smoothing the debris sieved from the rotary sieve are provided at the lower end portion of the main body frame.

  According to the trommel having the above-described configuration, the arm or the like is operated and the earth or stone in the ground or in the ground is put into the rotary sieve by the shovel, and the earth and stone is sieved by the rotary sieve. The plurality of plate-like members provided at the lower end portion of the main body frame have a function of protecting the rotary sieve from debris and a function of smoothing the debris squeezed from the rotary sieve. That is, when a plurality of plate-like members are used to excavate the ground or underground debris on the rotary sieve with an excavator, the rotary sieve can be prevented from coming into contact with the debris and being damaged. The sieved debris can be smoothed, and even when the debris is leveled in this way, the rotary sieve can be prevented from coming into contact with the debris and being damaged.

  The invention of claim 2 is the invention of claim 1, wherein the main body frame includes a front frame having a drive unit for rotating the rotary sieve, a rear frame having an excavator, the front frame, and the rear frame. A plurality of connecting frames, and the plurality of plate-like members extend in a direction parallel to the length direction of the lowermost lower connecting frame of the plurality of connecting frames, and extend downward from the lower connecting frame. It is arranged to project to the side.

  According to the trommel having the above-described configuration, the arm or the like is operated to move the main body frame backward, so that the excavator allows the earth or earth in the ground to be put into the rotary sieve. Since the rotary sieve is rotated by the drive unit, the debris is reliably sieved by the rotary sieve. The plurality of plate-like members extend in a direction parallel to the length direction of the lower connecting frame, and are arranged so as to protrude downward from the lower connecting frame. The function of leveling the sieved debris can be obtained with certainty.

The invention of claim 3 is characterized in that in the invention of claim 2, the plurality of plate-like members are fixed to the lower connecting frame and provided in an inclined shape.
According to the trommel having the above-described configuration, a plurality of plate-like members can be provided easily and surely using the lower connecting frame, and the function of leveling the earth and stones can be enhanced. Strength can also be increased.

  According to the trommel of the present invention, it is possible to prevent the rotary sieve from being damaged by contact with the debris, and to smooth the debris sieved from the rotary sieve.

It is a side view of a self-propelled working machine provided with a trommel according to an embodiment of the present invention. It is a side view of Trommel. It is a top view of Trommel. It is a rear view of Trommel. It is the VV sectional view taken on the line of FIG. FIG. 6 is a diagram corresponding to FIG. 5 according to a first modification. FIG. 6 is a diagram corresponding to FIG. 5 according to a second modified example.

  Hereinafter, the form for implementing this invention is demonstrated based on an Example. In the posture shown by the phantom line in FIG. 1 (solid line in FIG. 2), the front / rear / left / right / up / down viewed from the operating part of the self-propelled working machine will be described as front / rear / left / right / up / down.

  As shown in FIG. 1, a self-propelled working machine 1 includes a lower traveling body 2 having a pair of crawlers 2 a, and an upper revolving body 3 having an operation unit 3 a provided on the lower traveling body 2 so as to be capable of turning. The working device 4 extending forward from the upper swing body 3 is provided. A hydraulic pressure generator 5 including a hydraulic pump and an engine that drives the hydraulic pump is mounted on the rear portion of the upper swing body 3.

  The work device 4 includes a boom 6 whose base end is pivotally supported by the upper swing body 3, a pair of first hydraulic cylinders 7 that rotate the boom 6 relative to the upper swing body 3, and a distal end portion of the boom 6. An arm 8 whose base end portion is pivotally supported on, a second hydraulic cylinder 9 for rotating the arm 8 with respect to the boom 6, a trommel 10 pivotally supported on the tip of the arm 8 and mounted as an attachment, A third hydraulic cylinder 11 for rotating the trommel 10 with respect to the arm 8 is provided.

  Both ends of the first hydraulic cylinder 7 are rotatably connected to the upper swing body 3 and the boom 6, respectively, and both ends of the second hydraulic cylinder 9 are rotatably connected to the boom 6 and the arm 8, respectively. Both end portions of the hydraulic cylinder 11 are connected to the arm 8 and the base end portions of the links 12 and 13, respectively. A main body frame 20 of the trommel 10 is pivotally supported at the front end of the arm 8, the front end of the link 12 is connected to the arm 8, and the front end of the link 13 is rotatably connected to the main body frame 20.

The trommel 10 will be described.
As shown in FIGS. 1 to 5, the trommel 10 is of a so-called backhoe (drag shovel) type, and is a main body frame 20, a cylindrical rotary sieve 30 for screening the debris, and a shovel for putting the debris into the rotary sieve 30. 40, a drive unit 50 for rotating the rotary sieve 30 and the like. The illustrated rotary sieve 30 has a relatively large aperture size, but can be replaced with a rotary sieve 30 having various aperture sizes.

  The main body frame 20 includes an accommodating portion 21 that rotatably accommodates the rotary sieve 30, a front frame 22 having a driving portion 50, a rear frame 23 having an excavator 40, a front frame 22, and a rear frame 23. And a plurality of connecting frames 24 and 25 (upper bracket 24 and a pair of left and right lower connecting frames 25).

  The front frame 22 and the upper bracket 24 form an L-shaped frame, and the distal end portion of the arm 8 and the distal end portion of the link 13 are pivotally supported on the rear portion of the upper bracket 24, respectively. An auxiliary frame 26 in a plan view is coupled to the lower portion of the front frame 22, and the front end portions of the pair of lower connection frames 25 are coupled to the left and right ends of the auxiliary frame 26. An upper portion of the rear frame 23 is rotatably connected to a rear portion of the upper bracket 24 by a shaft 23a facing in the left-right direction, and a lower portion of the rear frame 23 is coupled to a rear end portion of the pair of lower connection frames 25. .

  The rotary sieve 30 is accommodated in the accommodating portion 21 of the main body frame 20 and is arranged with its open end directed rearward. A plurality of idler wheel cases 32 each containing a plurality of (four) idler wheels 31 are attached to the rear frame 23, and the plurality of idler wheels 31 allow the outer periphery of the rear portion of the rotary sieve 30 to be freely rotated. Guide supported. The shovel 40 is provided at the lower part of the rear frame 23, and has a plurality (five) claws 40a at the lower rear end thereof.

  The drive unit 50 has a hydraulic motor 51, and the central portion of the front portion of the rotary sieve 30 is directly connected to the hydraulic motor 51 (drive shaft). Here, the connection between the rear frame 23 and the pair of lower connection frames 25 is released, the rear frame 23 is opened by rotating forward and upward, and the connection between the hydraulic motor 51 and the rotary sieve 30 is released. The rotary sieve 30 can be replaced from the front side.

  By the way, as shown in FIG.1, FIG.2, FIG.4, FIG.5, the function which protects the rotary sieve 30 from the debris, and the function which leveles the debris sieved from the rotary sieve 30 in the lower end part of the main body frame 20. A pair of left and right plate-like members 60 having the above are provided.

  In the posture of the trommel 10 shown in FIG. 2, the pair of lower connection frames 25 are positioned at the lowermost part of the plurality of connection frames 24 and 25 and extend horizontally in the front-rear direction, that is, a pair of plate-like members. 60 extends horizontally in the front-rear direction, and is disposed so as to protrude downward from the pair of lower connecting frames 25.

  The pair of lower connecting frames 25 is positioned above the lower ends of the front frame 22 and the rear frame 24, and the pair of plate-like members 60 is a longitudinal length of the lower connecting frame 25 (the front frame 22 and the rear frame). Are formed in a band plate shape having substantially the same longitudinal length as the length between the upper and lower portions 24, and the upper end portions thereof are fixed to the pair of lower connecting frames 25, respectively, and vertically so as to form a C shape in a front view. On the other hand, it is provided in an inclined shape inclined about 45 degrees.

  Further, the lower ends of the pair of plate-like members 60 are substantially at the same height as the lower ends of the front frame 22 and the shovel 40 (rear frame 24), and the pair of plate-like members 60 are arranged at the front frame 22 and the shovel. In cooperation with, we can level the stones squeezed from the rotary sieve.

According to the trommel 10 described above, the following actions and effects can be obtained.
For example, by placing the trommel 10 in the posture shown by the phantom line in FIG. 1 (solid line in FIG. 2) and operating the boom 6 and the arm 8 etc. to move the main body frame 20 backward, the excavator 40 moves it into the ground or ground. A certain earth and stone is put into the rotary sieve 30. Next, the trommel 10 is tilted, for example, in a posture shown by a solid line in FIG. 1, the rotary sieve 30 is rotated by the driving unit 50, and the debris is sieved by the rotary sieve 30.

  The pair of plate-like members 60 provided at the lower end portion of the main body frame 20 has a function of protecting the rotary sieve 30 from debris and a function of leveling the debris squeezed from the rotary sieve 30. The pair of plate-like members 60 can prevent the rotary sieve 30 from coming into contact with the earth and stones when the excavator 40 crawls the earth or earth in the ground into the rotary sieve. By moving the trommel 10 to the left and right by turning the upper swing body 3, the debris sieved by the rotary sieve 30 can be smoothed, and when the debris is leveled in this way, the rotary sieve 30 contacts the debris. Damage can be prevented.

  The pair of plate-like members 60 extend in a direction parallel to the length direction of the lowermost pair of lower connection frames 25 of the plurality of connection frames 24, 25, and are stretched downward from the pair of lower connection frames. Since it arrange | positions so that it may take out, the function which protects the rotary sieve 30 from a debris and the function which smooths the debris sieved from the rotary sieve 30 can be acquired reliably.

  Since the pair of plate-like members 60 are fixed to the pair of lower connecting frames 25 and are inclined, the pair of plate-like members 60 can be easily used by using the pair of lower connecting frames 25. In addition, it can be provided so as to enhance the function of leveling the earth and stone, and the attachment strength of the pair of plate-like members 60 can be increased.

Next, a modified example in which the above embodiment is partially modified will be described.
(1) As shown in FIG. 6, the first modified example is a modification of the pair of plate-like members 60 of the above-described embodiment. The pair of plate-like members 60 </ b> A according to the first modification is provided vertically with their upper ends fixed to the pair of lower connecting frames 25. The pair of plate-like members 60A is formed in a band plate shape having substantially the same longitudinal length as the longitudinal length of the lower connecting frame 25, like the pair of plate-like members 60A. The lower end of 60 </ b> A is substantially at the same height as the lower ends of the front frame 22 and the excavator 40.

(2) As shown in FIG. 7, in the second modification, the pair of plate-like members 60 of the above-described embodiment is left, and a pair of plate-like members 60B on the left and right are further added. The pair of plate-like members 60B according to the second modification has their upper ends fixed to the pair of lower connecting frames 25, respectively, and are approximately perpendicular to the vertical so that they have an inverted C shape when viewed from the front. It is provided in an inclined shape inclined by 45 degrees. The pair of plate-like members 60B is formed in a strip shape having substantially the same longitudinal length as the longitudinal length of the lower connecting frame 25, like the pair of plate-like members 60A, and the pair of plate-like members 60A. The lower end of each is substantially the same height as the lower ends of the front frame 22 and the excavator 40.

(3) Other various modifications can be added and implemented without departing from the spirit of the present invention. For example, if it is a plate-like member having a function of protecting the rotary sieve 30 from debris and a function of smoothing the debris sieved from the rotary sieve 30, other than the plate-like member or instead of the plate-like member Further, plate members having various numbers (for example, one) or shapes arranged so as to protrude downward from the lower connection frame 23 may be provided.

  Moreover, in the said Example, although it uses as a trommel 10 drag shovel (backhoe) type, it can also be used as what is called a loading shovel type. In this case, with the trommel 10 facing backwards and forwards, the main body frame 20 includes a front frame 23 having the excavator 40, a rear frame 22 having the drive unit 50, and a plurality of connecting the front frame 23 and the rear frame 22. Connecting frames 24 and 25 (an upper bracket 24 and a pair of left and right lower connecting frames 25).

1 Self-propelled working machine (working machine)
8 Arm 10 Trommel 20 Main body frame 21 Housing part 22 Front frame 23 Rear frame 24 Upper bracket (connection frame)
25 Lower connection frame (connection frame)
30 Rotating sieve 40 Excavator 50 Drive unit 60 Plate member

Claims (3)

In Trommel, which is attached to the arm of the work machine and sifts out the debris,
A cylindrical rotating sieve,
A main body frame having an accommodating portion for rotatably accommodating the rotary sieve,
A trommel having a plurality of plate-like members having a function of protecting the rotary sieve from debris and a function of smoothing the debris sieved from the rotary sieve at a lower end portion of the main body frame. The main body frame includes a front frame having a drive unit that rotates the rotary sieve, a rear frame having an excavator, and a plurality of connection frames that connect the front frame and the rear frame.
The plurality of plate-like members are arranged so as to extend in a direction parallel to a length direction of a lowermost lower connection frame of the plurality of connection frames and project downward from the lower connection frame. The trommel according to claim 1.   The trommel according to claim 2, wherein the plurality of plate-like members are fixed to the lower connection frame and provided in an inclined shape.