JP2019018119A - Crusher - Google Patents

Abstract

To provide a crusher capable of stably pressing between a pair of crushing rollers.SOLUTION: A crusher 1 comprises a pair of crushing rollers 3 composed of a fixing roller 3a and a rocking roller 3b, a support part 6 rotatably supporting the rocking roller 3b, a frame body 4 rockably holding the support part 6 around a rocking shaft C2 and a rocking mechanism 7 for rocking the support part 6. The rocking mechanism 7 comprises a camshaft rotatably supported by the support part 6, an eccentric cam eccentric to a rotary shaft of the camshaft and a holding part 74 rotatably holding the eccentric cam, and the holding part 74 is fixed to the frame body 4. When rotating the eccentric cam, the support part 6 rocks to the frame body 4 around the rocking shaft C2, and moves the rocking roller 3b in the direction for approaching the fixing roller 3a or the direction for separating from the fixing roller 3a.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a crushing apparatus that crushes biomass raw materials such as rice husks.

  Conventionally, a crushing device that crushes biomass raw materials such as rice husks with a pair of crushing rollers rotating in opposite directions has been proposed (see, for example, Patent Document 1). In this crushing device, one crushing roller is swingable with respect to the other crushing roller, and one crushing roller is pressed against the other crushing roller by the compression force of the compression spring.

JP 2007-68499 A

However, in the configuration in which one crushing roller is pressed against the other crushing roller by the compression force of the spring, it is difficult to apply a stable pressing force between the crushing rollers. When the pressing force between the pair of crushing rollers fluctuates, the crushing rate also fluctuates, and there is a problem that the raw material cannot be crushed uniformly.
Then, this invention aims at provision of the crushing apparatus which can perform the press between a pair of crushing rollers stably.

  The crushing device according to claim 1 of the present invention includes a pair of crushing rollers including a fixed roller and a swinging roller, a support portion that rotatably supports the swinging roller, and the support portion centered on a swinging shaft. And a swinging mechanism for swinging the support part, the swinging mechanism being rotatably supported by the support part, and the cam An eccentric cam that is eccentric with respect to the rotation axis of the shaft, and a holding portion that rotatably holds the eccentric cam. The holding portion is fixed to the frame body, and the support is provided when the eccentric cam is rotated. The portion swings with respect to the frame body about the swing shaft, and moves the swing roller in a direction close to the fixed roller or in a direction away from the fixed roller.

  According to a second aspect of the present invention, the crushing device further includes a fixing means, and the eccentric cam is provided with a handle that rotates integrally with the eccentric cam, and the handle is detachable from the holding portion by the fixing means. A crusher characterized in that it is fixed to a crusher.

  In the crushing apparatus according to claim 3 of the present invention, the handle has a fixing pin as the fixing means, the holding portion is provided with a scale plate, and the scale plate is provided with a plurality of scale holes. The handle is fixed to the holding portion via the scale plate by inserting the fixing pin into any of the scale holes.

  According to the crushing apparatus of the first aspect of the present invention, the support portion is rocked by rotating the eccentric cam, and the rocking roller is moved in a direction close to the fixed roller or in a direction away from the fixed roller. Therefore, unlike the conventional crushing apparatus using a compression spring, the rocking roller can be stably pressed against the fixed roller.

  According to the crushing apparatus of the second aspect of the present invention, the handle that rotates integrally with the eccentric cam is provided, and this handle is detachably fixed to the holding portion by the fixing means. Therefore, by fixing the handle to the holding portion using the fixing means, the phase of the eccentric cam can be easily held, and the position of the swing roller can be easily kept constant.

  According to the crushing apparatus of the third aspect of the present invention, the handle is fixed to the holding portion via the scale plate by the fixing pin inserted into any one of the scale holes of the scale plate. Can be easily fixed, and positioning and position adjustment of the swing roller with respect to the fixed roller can be easily performed.

(A) is the schematic which shows the crushing apparatus which concerns on embodiment of this invention, (b) is a figure which shows the state which turned 180 degrees from the position shown to (a). The II-II line expanded sectional view of Drawing 1 (a). It is a schematic perspective view of the rocking | fluctuation mechanism with which the crushing apparatus of FIG. 1 is provided, (a) is a figure which shows the state in which a cam shaft is located in an upper end position, (b) is a figure which shows the state in which a cam shaft is located in a lower end position. . The schematic perspective view which looked at the rocking | fluctuation mechanism shown in FIG. 3 from the opposite side.

  A crushing device according to an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, a crushing apparatus 1 according to this embodiment includes a raw material charging unit 2, a pair of crushing rollers 3 provided below the raw material charging unit 2, and a frame 4 that houses the pair of crushing rollers 3. And a support mechanism 5.

  The pair of crushing rollers 3 includes a fixed roller 3a and a swinging roller 3b. A V-shaped groove 31 (FIG. 2) is provided on the outer peripheral surface of each crushing roller 3, and each other is driven by a driving force from a driving means (not shown). It is rotationally driven in the reverse direction. The fixed roller 3a is rotatably held by the frame body 4 at a predetermined position. The swing roller 3b is supported by the frame body 4 via the support mechanism 5, and can swing with respect to the fixed roller 3a.

  2 to 4, the support mechanism 5 includes a support portion 6 that supports the swing roller 3 b and a swing mechanism 7 that supports the support portion 6. The support unit 6 includes a pair of left and right support plates 61 that rotatably support the swing roller 3b about the rotation axis C1, a connection unit 62 that connects the pair of support plates 61 to each other, and a connection unit 62 and a swing unit. Each of the support plates 61 is supported by the frame body 4 so as to be swingable about the swing axis C2. Therefore, when the support portion 6 (support plate 61) swings in the predetermined direction A1 about the swing axis C2, the swing roller 3b is displaced in a direction approaching the fixed roller 3a, and swings when swinged in the reverse direction A2. The roller 3b is displaced in a direction away from the fixed roller 3a.

  The swing mechanism 7 includes a cam shaft 72 rotatably supported by the connecting portion 63 of the support portion 6, an eccentric cam 73 eccentric with respect to the rotation axis C 3 of the cam shaft 72, and the eccentric cam 73 as a rotation axis C 4. A holding portion 74 that is rotatably held at the center, and the holding portion 74 is fixed to the frame body 4. The eccentric cam 73 is provided with a handle 75, and the eccentric cam 73 rotates integrally with the handle 75 about the rotation axis C4. With this configuration, when the handle 75 is rotated, the eccentric cam 73 rotates around the rotation axis C4, and the cam shaft 72 moves in the vertical direction (arrow D1 direction) together with the connecting portion 63 of the support portion 6 accordingly.

  In the present embodiment, when the handle 75 is at the position shown in FIGS. 1A and 3A, the cam shaft 72 is located at the upper end position, so that the pressing of the swing roller 3b against the fixed roller 3a is maximum. Thus, when the handle 75 is at the position shown in FIGS. 1A and 3B, the camshaft 72 is located at the lower end position, so that the pressing of the swing roller 3b against the fixed roller 3a is minimized.

  The handle 75 has a fixing pin 77. The fixing pin 77 is inserted into an insertion hole 75a provided in the handle 75 and functions as a fixing means. A scale plate 76 is fixedly provided on the holding portion 74, and the scale plate 76 is provided with a plurality of scale holes 76a. The scale holes 76a are arranged along a trajectory followed by the insertion hole 75a (fixed pin 77) when the handle 75 is rotated. Retained.

  As described above, in this embodiment, the swing roller 3b is swung with respect to the fixed roller 3a by using the eccentric cam 73, so that the fixed roller 3a of the swing roller 3b is compared with the conventional configuration using the compression spring. Can be stably pressed.

  Further, the swinging amount of the swinging roller 3b accompanying the rotation of the eccentric cam 73 (handle 75), that is, the amount of movement of the cam shaft 72 and the connecting portion 63 in the vertical direction D1, is determined by the eccentric cam 73 relative to the rotating shaft C3 of the cam shaft 72. Since it is determined by the amount of eccentricity of the rotating shaft C4, by adjusting the amount of eccentricity, it is possible to easily adjust the minute amount of rocking of the rocking roller 3b in millimeters.

  As mentioned above, although the crushing apparatus which concerns on embodiment of this invention was demonstrated with reference to attached drawing, this invention is not limited to this embodiment, A various deformation | transformation and correction are possible, without deviating from the scope of the present invention. It is.

  For example, in the above embodiment, the handle 75 is fixed to the holding portion 74 by the fixing pin 77 via the scale plate 76, but the fixing means for fixing the handle 75 to the holding portion 74 is the fixing pin 77. It is not limited to.

DESCRIPTION OF SYMBOLS 1 Crushing device 3 Crushing roller 3a Fixed roller 3b Oscillating roller 4 Frame body 6 Support part 7 Oscillating mechanism 72 Cam shaft 73 Eccentric cam C2 Oscillating shaft

Claims (3)

A pair of crushing rollers consisting of a fixed roller and a swing roller;
A support portion for rotatably supporting the swing roller;
A frame that holds the support portion in a swingable manner around a swing shaft;
A swinging mechanism for swinging the support part,
The swing mechanism includes a cam shaft rotatably supported by the support portion, an eccentric cam that is eccentric with respect to the rotation shaft of the cam shaft, and a holding portion that rotatably holds the eccentric cam. The holding portion is fixed to the frame body,
When the eccentric cam is rotated, the support portion swings with respect to the frame body with the swing shaft as a center, and the swing roller moves in a direction close to the fixed roller or in a direction away from the fixed roller. A crushing device characterized by being moved. A fixing means;
The eccentric cam is provided with a handle that rotates integrally with the eccentric cam,
The crushing apparatus according to claim 1, wherein the handle is detachably fixed to the holding portion by the fixing means. The handle has a fixing pin as the fixing means,
The holding portion is provided with a scale plate,
The scale plate is provided with a plurality of scale holes,
The crushing apparatus according to claim 2, wherein the handle is fixed to the holding portion via the scale plate when the fixing pin is inserted into any one of the scale holes.

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