JPH0433952Y2 - - Google Patents

Description

[Detailed description of the invention] Industrial application field The present invention is a tooth plate device for finely dividing a geocrusher suitable for crushing a viscoelastic body formed when a pavement such as a road is peeled off. Regarding.

Conventional Technology A geo crusher is used to roughly crush hard ores, rocks, limestone, etc. As shown in Figure 1, the crushing surface is equipped with tooth plates or stationary teeth made of a hard material such as manganese steel. 1 and moving tooth 2 are attached. In such conventional geocrushers, the crushing ratio is usually 4 to 5, and special ones are 7 to 8, and the particle size of the crushed material is approximately 30 mm.
The following was the practical limit. Therefore, the inventors of the present application first set the crushing ratio to 10 or more and the particle size of the crushed material to 20 mm.
We have developed a tooth plate device for finely dividing a geo-crusher that can be In some cases, a supercharged state called "chiyoke feed" appeared and the particle size was reduced by chance, but it was impossible to always ensure that this state appeared, and in order to deal with this, we developed the system as shown in Figure 2. The crushing chamber 3 formed between the stationary teeth 1 and the movable teeth 2 of the tooth plate device for fine-splitting consists of a primary crushing zone A, a supercharging adjustment zone B, and a choke zone C, which are continuous in the direction in which the crushed material enters. In the supercharging adjustment zone B, the interval between the stationary tooth 1 and the movable tooth 2 is narrowed in the direction of movement of the crushed material, and the angle between the two teeth is set to 30
It has been provided that the distance between the two teeth in the tooth yoke zone C is 0.5 to 1.5 times the longitudinal stroke of the movable tooth 2.

Problems to be solved by the invention However, in the above-mentioned tooth plate device for fine-splitting, the crushing ratio is set to 10 or more, and the crushing particle size is set to 20 mm.
In addition to the following, it is possible to adjust the filling degree of the crushed material in the Chiyoke Zone C, so overcharging can be prevented. In the case of a viscoelastic body formed by peeling off a pavement body, in the gap between both teeth during the stroke of the movable teeth, the plate-shaped body with a thickness equal to or less than that gap is in a state of being supplied with crushed material or in a crushed state. In some cases, the particles may fall without being crushed, and in reality, the crushing ratio and the particle size of the crushed particles may not reach the optimal values as described above, which poses a problem.

The purpose of this invention was to solve the above-mentioned problems, and it is possible to reliably crush a viscoelastic material made of a thin plate-like material by peeling off pavement materials such as roads. An object of the present invention is to provide a toothed plate device for a geo-crusher suitable for crushing plate-shaped viscoelastic bodies.

Means for Solving the Problems In order to achieve the above object, the tooth plate device for finely dividing a geo-crusher according to the present invention has an angle provided at the lower end of the movable tooth at a constant angle in the discharge direction. A plurality of square members are arranged at predetermined intervals in the tooth width direction, and the length of the square members is longer than at least the maximum interval in the tooth yoke zone between the two teeth. This is a characteristic feature.

Function In the above configuration, when a plate-shaped viscoelastic body formed by exfoliating a pavement such as a road is fed from above the crushing chamber, the movable teeth operate with a predetermined stroke with respect to the fixed teeth. Even if it is a thin plate-shaped viscoelastic body, it is prevented from falling by the square member, and the moving teeth operate against the fixed teeth to crush the viscoelastic body, and this viscoelastic body has a crushing ratio. 10 or more and the crushing particle size is 20 mm or less, which is ensured by crushing and discharged from the crushing chamber.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the geo crusher shown in FIG. 1, the tooth plate device is composed of a fixed tooth 1 and a movable tooth 2, and a crushing chamber 3 is formed by each of these teeth 1, 2 and side plates 4, 4. is formed. Fixed tooth 1 and moving tooth 2
As shown in FIG. 2, it has a primary crushing zone A, a supercharging adjustment zone B, and a chiyoak zone C, and in the supercharging adjustment zone B, a fixed tooth 1 and a movable tooth 2
The gap between the two teeth narrows in the direction of movement of the crushed material, and the distance between these two teeth becomes equal to the longitudinal stroke of the movable tooth _2.
0.5 to 1.5 times. As shown in FIG. 1, a square member 5 is fixed to the lower end of the movable tooth 2 by welding or the like at an angle of 30 to 60 degrees with respect to the horizontal direction, facing the discharge direction. There is. This square member 5 is formed from the same material as both teeth 1 and 2,
A plurality of teeth are arranged in the width direction of both teeth 1 and 2. In this case, as shown in FIG. 4, for teeth with a face width of 1200 mm, three teeth are provided at intervals of 400 to 500 mm. This square member 5 is suitable for crushing if the plate-shaped viscoelastic body produced by peeling off the pavement such as a road supplied from above to the crushing chamber 3 is thinner than the distance between both teeth of the chiyoke zone C. The dimensions are such that they are strong enough to stop the viscoelastic material from falling off. The movable tooth 2 is actuated by the motion shown in FIG. 3 relative to the fixed tooth 1, and a stroke _l3 is applied via the eccentric shaft 7 by the rotation of the flywheel 6 and the V-flywheel (not shown). do.

The operation of the above-described tooth plate device for finely dividing the geocrusher will be explained. The crushed material, which is a viscoelastic material produced by peeling off a pavement such as a road, flows in the direction of arrow X into the crushing chamber 3 formed between the fixed tooth 1 and the movable tooth 2, as shown in FIG. Supplied. The movable tooth 2 moves with a stroke l ₃ as shown in FIG. 3 with respect to the stationary tooth 1. The supplied crushed material undergoes primary crushing in the primary crushing zone A of the crushing chamber 2, and then enters the supercharging adjustment zone B. here,
The supercharging adjustment is performed until the crushed material enters the third elongated chyo zone C under the compression action and upward pushing action, and is secondarily crushed in the next chiyoke zone C. In such a crushing process, if the crushed material is a thin plate-like material, depending on the crushing state or the supply state of the crushed material, the plate-like material may reach the chiyork zone C as it is. The plate-shaped viscoelastic body is prevented from falling by the square member 5, and is crushed by interaction with other crushed materials or crushed objects and falls. Therefore, the crushing efficiency with a crushing ratio of 10 or more and a crushed material particle size of 20 mm or less is maintained even in the case of a plate-like viscoelastic body with thin pavement peeling off, regardless of the distance between the chiyolk zones C. .

Note that the distance l ₁ between the tooth plates at the entrance of the supercharging adjustment zone B is preferably larger than the length l ₂ of the moving teeth 2 in the supercharging adjustment zone B, and It is desirable that the border be smooth and rounded.

Effects of the Invention As described above, according to the invention of the present application, in the tooth plate device for finely dividing a geocrusher used for crushing a viscoelastic body such as a peeled pavement, the lower end of the movable tooth is attached in the discharge direction. a corner member provided at an angle with respect to the horizontal direction, the length of the corner member being longer than at least the maximum distance between the two teeth, and the length of the corner member being at least longer than the maximum distance between the teeth, Because multiple pieces are arranged at intervals, depending on the crushing state or supply state of the crushed material, it is possible to create plate-like viscous material that is thinner than the interval between the Chi Yoke Zones C, which would otherwise have fallen without being crushed. Even if the material is made of elastic material, it is prevented from falling by the square member, and the crushing operation is carried out so that it does not fall without being crushed, and a crushing efficiency of a crushing ratio of 10 or more and a crushing particle size of 20 mm or less is achieved. This has the excellent effect of ensuring that the process is carried out reliably and providing a finely split tooth plate device with very high working efficiency.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a front view of a geo crusher equipped with a tooth plate device for thinning according to the present invention, FIG. 2 is a schematic side view of only the tooth plate portion, and FIG. 3 is a schematic side view of only the tooth plate portion. 4 is a diagram showing the movement of the movable teeth in the tooth plate device, and FIG. 4 is a view taken in the direction of arrow V in FIG. 1. 1... Fixed teeth, 2... Moving teeth, 3... Crushing chamber, 4
...Side plate, 5...Square member.

Claims (1)

[Scope of utility model registration request] A crushing chamber including a fixed tooth and a movable tooth, and a crushing chamber formed between the fixed tooth and the movable tooth, is composed of a primary crushing zone A, a supercharging adjustment zone B, and a chuck zone C, which are continuous in the direction in which the crushed material enters. In the supercharging adjustment zone B, the gap between the fixed tooth and the movable tooth narrows in the direction of movement of the crushed material, and the angle formed by the two teeth is a predetermined angle;
The fineness of the jaw crusher used for crushing a viscoelastic body formed by peeling off a pavement body such as a road whose length is such that the distance between the two teeth in the jaw zone C is a predetermined interval. In the split tooth plate device, a square member is provided at a lower end of the movable tooth at a predetermined angle in the ejection direction, and the length of the square member is at least the maximum length between the two teeth. A tooth plate device for finely dividing a geocrusher used for crushing a viscoelastic body, characterized in that the tooth plate device is longer than the gap and is arranged in plurality at intervals in the width direction of both teeth.