JPS592840Y2 - earth crusher - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of an earth crusher.

In a soil crusher, the top of the ridge is fed into the soil from the soil supply port at the top end of the cylindrical body that rotates at a low speed and is mounted on an inclined axis at the required angle in the machine frame. To crush the top, the top of the ridge is slowly moved toward the discharge outlet using an inclined cylinder, and a crushing rod that rotates at high speed is used to crush the top. Ideally, the gap between the body and the inner surface of the body should be small.

However, when a large ridge top is introduced from the soil supply port, the crushing rod rotates much faster than the upstream transfer speed by the cylinder, which prevents the ridge top from being transferred immediately after the input. The area on the ridge is only slightly reduced, and the area on the ridge is not easily moved toward the outlet.

For this reason, there was the complication of having to crush the top of the ridge more finely than necessary, and there were also disadvantages such as the crushing rod facing the soil supply port was more likely to be worn out and damaged than other types.

The present invention was developed in view of these circumstances, and it has a simple structure that eliminates the drawbacks of the conventional method, and allows for smooth transport of soil into the cylindrical body, improving the crushing efficiency and rationally preventing damage to the crushing rod. It is an attempt to make people do it.

To explain the details of the embodiment with reference to the drawings, legs 1a, lb
Side frames 3a and 3b are provided at the left and right ends of the pedestal 2, which is tiltedly supported by the pedestal 2, and a large number of holes 4 made of a material such as a wire mesh or a punch plate are provided between the side frames 3a and 3b. The cylindrical body 5 is mounted horizontally at an angle so as to be rotatable at low speed.

Reinforcement rings 6a and 6b are provided at both ends of this cylindrical body 5, and these parts are supported by at least three wheels 7 provided on the side frames 3a and 3b.

Furthermore, as is clear from FIG. 1, the reinforcing ring 6 a
, 6b, the tips of arms 8 which are inclined and provided radially in the upward direction centering on the center of the cylindrical body 5 are fixed, - a bearing part 9 is provided at the gathering point of each arm 8; A polygonal rotating shaft 10 as shown in FIG. 2 is mounted between both bearings 9 so as to be able to rotate at high speed. A crushing rod 11 is provided which is made of a thin plate-like elastic body such as a plate spring material and has a receding angle at its tip.

A hole that fits the cross-sectional shape of the rotating shaft 10 is provided in the center of the crushing rod 11, and the hole is inserted into the rotating shaft 10, and the plate surface of the crushing rod is perpendicular to the axial direction of the rotating shaft 10. It has become.

12 is a partition pipe between each crushing rod 11, 13 is a rotating shaft 10
A nut is used to tighten each crushing rod 11 and partition pipe 12 against each other.

As is clear from FIG. 1, the crushing rod 11 is formed such that the crushing rod facing the inclined upper end of the cylindrical body 5 is shorter than the crushing rod on the discharge outlet side, and the tip of the short crushing rod 11 and the cylinder A larger gap is provided between the inner surface of the body and the inner surface of the body, so that the buried soil at the initial stage of charging can be easily transferred in the direction of the discharge port.

The range in which the crushing rod 11 facing the upstream supply port is shortened is as follows:
As shown in the figure, several crushing rods, that is, up to the middle part of the cylindrical body 5, are sequentially made shorter and smaller in the direction toward the soil supply port, or
Alternatively, it is optional whether to uniformly shorten the crushed earth rods in the range to the same length, or to form the crushed earth rods sequentially longer from the soil supply port side to the soil discharge port side. It is not specified.

A base plate 14 is bridged between the one leg 1b, and a motor 15 is provided on the base plate 14.

A pulley 17 is attached to the end of the drive shaft 16 of the motor 15, and the pulley 17 and a boot 18 provided at the end of the rotating shaft 10 are connected by a belt 19. A large diameter sprocket wheel 21 provided at one end of the rotating shaft 20 and a small diameter sprocket wheel 22 provided on the rotating shaft 10 are connected by a chain 23.

The above-mentioned roller 7 is loosely fitted on the other end of the shaft 20, and a gear 24 with a small diameter is fitted on the other end of the shaft 20.
The gear 24 meshes with a gear 25 provided on the outer periphery of one side of the cylindrical body 5, so that the cylindrical body 5 rotates at a low speed.

The gear 25 provided on the cylindrical body may be formed on the reinforcing ring 6b, or may be provided separately.

Reference numeral 26 denotes a hopper for supplying on the ridge, which is attached to the side frame 3a and has its supply port communicating with the sloping upper end of the cylindrical body 5, and the sloping lower end of the cylindrical body 5 is filled with soil of a specified granularity or more. A chute 27 for discharging and guiding foreign matter such as the same as above, stones, grass roots, etc. is provided, and the chute I/27 is provided at the lower part of the side frame 3b.

The belt 1 is inserted into the hole 28 provided in the chute 27.
9 is inserted through the chute, and a belt cover 28' having a chevron-shaped planar shape is provided on the chute so that foreign matter to be discharged does not come into contact with the belt 19.

In addition, as shown in Fig. 2, the side frames 3 a and 3 b
A shaft 29 is bridged between the tops of the safety covers 30, and the upper edges of the left and right safety covers 30 are hinge-supported on the shaft 29, and the lower edges of the safety covers 30 are fixed to the side frame with screws 31.

In the figure, reference numeral 32 denotes a cover detachably provided on the side frame 3b so as to cover the entire outer surface of the side frame 3b.

Further, as shown in FIG. 1, a screw punch 33 for adjusting the inclination angle of the cylindrical body 5 is screwed onto one leg 1a, and one end of a lever 34 is pivotally supported at the lower end of the other leg 1b. A caster 35 is attached to the end of the lever 34, and a stopper 36 is provided in the middle of the lever 34.
By raising the lever 34 and locking the stopper 36 to the leg 1b, the caster 35 is brought into contact with the ground, and by separating the other leg 1a from the floor surface, the whole can be moved smoothly.

In the figure, 37 is a stay for securing the legs, and 38 is buried soil.

Note that the cylindrical body 5 is not limited to a circular shape, but may be a polygonal shape such as a hexagonal shape or a hexagonal shape.

Next, to explain the operation, when buried soil 38 in a dry state is put into the hopper 26, the buried soil 38 is fed into the cylindrical body 5 which is rotating at a low speed, and is made shorter than the other one provided on the hopper 26 side. The crushing earth rod 11 rotates at high speed while the filling soil is sequentially sent toward the discharge port along the slope of the cylindrical body 5 without blocking the flow of the earth by the crushing earth rod 11.
The crushed soil is crushed into holes 4 of the cylindrical body 5.
They are sorted out and collected below the cylindrical body 5.

Further, foreign substances such as stones and grass roots contained in the buried soil put into the cylindrical body 5 are discharged from the discharge section to the outside via the chute 27 without being sorted and collected from the hole.
Since the crushing rod is formed of a plate-shaped elastic body (such as a plate spring), even if a stone is caught between the tip of the crushing rod 11 and the inner surface of the cylindrical body 5, the crushing rod 11 will not move as shown in the imaginary line in Figure 1. It is bent, so that the crushing rod 11 and the cylindrical body 5 are not damaged.

In addition, because the crushing rod is thin and rotates at high speed, grass roots are cut and do not wrap around the crushing rod.

Note that the crushing earth rod 11 need not be formed of a leaf spring material, but may be made of other rigid materials.

As described above, according to the present invention, the buried soil put into the soil crushing chamber can be highly efficiently crushed and recovered. Since the shape is shorter and smaller, even if larger fill soil is thrown in, the gap between the starting end crushing rod and the cylinder is large, so a part of the top of the ridge will be crushed and transferred to the discharge side, and it will be gradually crushed by the next crushing rod. Near the end, the gap between the tip of the crushing rod and the cylindrical body becomes small, so even particles slightly larger than the specified grain size are completely pulverized and fall through the hole in the cylindrical body to be collected.

As a result of the above, even if large ridge tops are input as in the past, there is no stagnation on the ridge due to the supply section, and large ridge tops are gradually crushed and collected without difficulty, increasing work efficiency. This has a great practical effect, as the impact on the ridge top is smaller compared to the previous one, and the durability of the starting-end crushing rods, which tend to wear out and get damaged more quickly, can be increased.

[Brief explanation of drawings]

FIG. 1 is a longitudinal side view, and FIG. 2 is a longitudinal front view of the same. la, lb...leg, 2...cradle, 3
a, 3 b...Side frame, 4...Hole, 5
... Cylindrical body, 6a, 6b ... Reinforcement ring, 7 ... Rolling wheel, 8 ... Arm, 9.
... Bearing part, 10 ... Rotating shaft, 11 ...
... Crushed earth rod.

Claims (2)

[Scope of utility model registration request] (1) A cylindrical body with a large number of holes is installed obliquely on the machine frame so as to be freely rotatable, and a soil supply port is provided at the slanted upper end of the cylindrical body, and a discharge port is formed at the slanted lower end. Furthermore, in a device in which a rotating shaft is mounted inside the cylinder along the axis of the cylinder, and crushing rods are provided at appropriate intervals on the rotating shaft, the crushing rods on the soil supply port side of the cylinder are installed. An earth crusher characterized by being shorter than the earth crushing rod on the discharge outlet side. (2) The earth crusher according to claim 1, wherein a part or all of the earth crushing rod is formed to be gradually longer from the soil supply port side to the discharge port side of the cylindrical body.