JPS5949058B2 - Joey Craftssia - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a jaw crusher for crushing rocks, earth, and the like.

Prior Art A conventional jaw crusher has movable teeth facing fixed teeth, and by swinging the movable teeth, the jaw crusher cooperates with the fixed teeth to insert the jaw crusher from above between the fixed teeth and the movable teeth. It was designed to crush rocks, etc., and discharge the crushed stones, etc. from below.

When this conventional technology is used, if the rock, etc. contains viscosity, especially if the stone is covered with viscosity, the clay will adhere to the fixed teeth or movable teeth, making it impossible to sufficiently crush the rock, etc. Eventually, stones will become stuck between the fixed teeth and the movable teeth, and the swinging movement of the movable teeth will stop. Purpose The purpose of the present invention is to eliminate the drawbacks of the prior art as described above, and to provide a device that can efficiently remove and discharge clay even when clay is mixed in the material to be crushed, such as rocks, and that the equipment can be used for a long time. It is possible to operate the machine in a stable state for a long period of time, and it is also possible to crush the object to be crushed sufficiently finely.

First Embodiment A first embodiment of a jaw crusher embodying the present invention will be described below with reference to FIGS. 1 to 5.

First, to explain the structure of the first embodiment, reference numeral 1 is a case that covers the entire device, and is composed of a bottom plate 1a and a pair of side plates lb that are erected to face each other on both sides of the top surface of the bottom plate 1a. . As shown in FIG. 2, reference numeral 2 denotes a pair of bearing tubes fixed to the rear and lower portions of the outer surfaces of both side plates lb with bolts and nuts, each having a support hole 3 extending therethrough in the left-right direction. It is being

4 is a pair of bearing metals fitted into these support holes 3, and 5 is a drive shaft rotatably supported between both bearing metals 4, both ends of which are outside the outer ends of each bearing metal 4. It protrudes in five directions.

A pair of sprockets 6 are fixed to the drive shaft 5 inside the side plates 1b of the case 1, and engagement teeth 7 are provided on the outer periphery of the sprockets.

Reference numeral 8 denotes a spacer attached to the drive shaft 5 so as to be interposed between each sprocket 6 and each side plate 1b, and restricts the movement of each sprocket 6 in the left-right direction.

Reference numeral 9 denotes a ratchet which is fitted to both protruding ends of the drive shaft 5 with a key 10 so as not to rotate relative to each other, and ratchet teeth 11 are provided on the outer periphery of the ratchet in a protruding manner at every 90 degrees as shown in FIG. ing.

Reference numeral 12 denotes a bracket fixed to the outside of each side plate b corresponding to each ratinite 9, and a support protrusion 13 protruding from the rear surface has a base end of a hydraulic cylinder 14 rotatably connected to a shaft 15. It is supported by

16 is a piston rod that is linearly reciprocated by a hydraulic cylinder 14, and 17 is a wedge-shaped driving portion provided at the tip of the piston rod 6, which engages and disengages from the ratchet teeth 11.

Both ratchets 9 are fitted and fixed to the drive shaft 5 at 45 degrees offset from each other, and a regulating member 18 is fixed to the outside of each side plate 1b so as to regulate the downward rotation of the hydraulic cylinder 14; are spacers interposed between the bearing metal 4 and the ratchet 9, respectively.

Reference numeral 20 denotes a driven shaft provided parallel to the drive shaft 5 at the front lower part of both side plates 1b, as shown in FIG.
It is also rotatably supported.

A pair of sprockets 21 are fixed to the driven shaft 20, and engagement teeth 22 are provided on the outer periphery of the sprockets.

Reference numeral 23 denotes a conveyance belt suspended between both sprockets 6 and 21, and is formed of a large number of conveyance belt pieces 24 connected in an endless manner.

Reference numeral 24a denotes a support piece constituting the conveyance band 24, and extends along the width direction of the conveyance band 23.

24b of the conveyor belt 23. A large number of crushed pieces arranged at equal intervals over the entire outer circumference, each crushed piece 24b
extends along the width direction of the conveyance belt 23, its front side is welded to the upper surface of each support piece 24a, and its rear side protrudes in the conveyance direction.

In the section where the conveyance belt 23 moves linearly, its protruding portion comes into contact with the upper surface of the adjacent support piece 24a, and when the conveyance belt 23 is reversed at its terminal end, each crushed piece 2
The opposing sides of 4b are wide open. A pair of chain elements 24C are fixed to both sides of the lower surface of the support piece 24a, and are connected to adjacent chain elements 24C by pins 25 to form a pair of endless chains.

Reference numeral 26 denotes a number of support plates fixedly installed between both side plates 1b so as to be located in the space surrounded by the conveyance belt 23, and a support plate 27 is fixed horizontally on the upper surface of these plates. .

As shown in FIG. 3, reference numeral 28 is a pedestal that extends in the front and back direction at the center and both sides of the top surface of the support plate 27, and the support piece 24a of the conveyance strip 24 is attached to the top surface of these pedestals. The lower surfaces of these pedestals 2 are in sliding contact with each other.
In the two grooves formed by the chain element 2
4C is movably fitted loosely.

Reference numeral 29 denotes a swing jaw of a known structure installed in the case 1 above the conveyor belt 23 on the pedestal 28, as disclosed in Japanese Utility Model Application No. 54-18978. Both ends of a shaft 30 that supports the swinging jaw 29 at an eccentric shaft portion are supported by both side plates 1b,
It is configured to swing up and down and back and forth as the shaft 30 rotates.

Reference numerals 31 and 32 denote a tension rod and a toggle plate, respectively, which swingably support the rear part of the swing jaw 29.

Reference numeral 33 is a movable tooth provided on the lower surface of the swinging jaw 29, and is adapted to crush rocks and the like in cooperation with the crushing surface on the crushing piece 24b.

34 is a toggle plate 32, a movable tooth 33, and a crushing piece 2, as disclosed in Japanese Utility Model Application No. 56-17942.
This is a distance adjusting device configured to be able to adjust the distance from the crushing surface on 4b.

In addition, 35 is the front of the swing jaw 29, the conveyance belt 23
It is a guide plate installed above the both side plates 1b, and forms an input port 36 for materials to be crushed.

Next, to explain the operation of this first embodiment, FIGS. 4 and 5 show a state in which the pair of piston rods 16 alternately make reciprocating linear movements, thereby rotating the drive shaft 5 in the counterclockwise direction. It is.

Figure 4 shows one piston rod 16 (front of the drawing) power bow 1
When pressure oil is injected into one of the hydraulic cylinders 14 in this state, the piston rod 1
6 protrudes, and as shown in FIG.
The drive shaft 5 rotates 45 degrees counterclockwise. Further, when the drive section 17 of the other piston rod 16 protrudes and the drive shaft 5 is further rotated 45 degrees counterclockwise, the first piston rod 16 is inserted into the force bow 1, and the tip of the drive section 17 is pushed out from the ratchet teeth 11 of the ratchet 9. It is detached and can be engaged with the next ratchet tooth 11. When one piston rod 16 is retracted in this manner, pressure oil is injected into the other hydraulic cylinder 14 by a hydraulic circuit (not shown), and the other piston rod 16 operates in the same manner as described above. At this time, the drive portion 17 is moved up and down by the ratchet teeth 11 of the ratchet 9, so the hydraulic cylinder 14 is slightly reciprocated up and down about the shaft 15. in this way,
When the two hydraulic cylinders 14 operate alternately and the drive shaft 5 rotates counterclockwise, the pair of sprockets 6 also rotate in the same direction, and the endless conveyance belt 23 is moved around.

Note that the pair of sprockets 21 and the driven shaft 20 also rotate dependently. At this time, if the hydraulic pressure supplied to the hydraulic cylinder 14 that moves the piston rod 16 in a reciprocating linear motion is regulated by a relief valve or the like so that it does not rise above a certain value, when the mechanical load applied to the conveyance belt 23 increases,
The piston rod 16 is no longer able to press and rotate the ratchet 5 9, and the moving speed of the conveyor belt 23 is reduced, making it possible to sufficiently crush the rock and prevent mechanical damage to the drive device. . In addition, a pair of ratchets 9 are provided on the drive shaft 5, and a pair of piston rods 16 that rotate these ratchets 9 are made to alternately move in a reciprocating straight line. In comparison, conveyor belt 2
By increasing the moving speed of No. 3, the crushing ability of the geo crusher can be increased. Now, the rocks to be crushed, which are input from the input port 36 along the guide plate 35, are placed on the front upper part of the conveyance belt 23, and the movable teeth 33 of the swing jaw 29
and the crushed pieces 24b of the conveying belt 23.

At this time, since the swinging jaw 29 is swinging in the vertical and longitudinal directions, the rock is crushed by the movable teeth 33 and the crushing surface on the crushing piece 24b. At this time, the cradle 28 supports the inner lower surface of the conveyance belt 23 to assist in crushing the rock. The crushed stones or sand are conveyed backward on the conveying belt 23 and discharged. By the way, according to the geo crusher of this embodiment, when the conveyance belt 23 is reversed at the discharge section, the crushed pieces 24b are largely opened in the direction in which they are separated from each other. Even if clay that has been crushed is caught between the crushed pieces 24b, these pebbles and clay are shaken off by the discharge section as the conveyance belt 23 is reversed.

Therefore, unlike in the past, there is no risk that clay, etc. may remain on the upper surface of the conveyor belt 23 due to long-term operation and interfere with the crushing operation, and the device can be operated in a stable state for a long period of time.
Rocks etc. can be crushed sufficiently finely. Further, since clay is inserted between each crushed piece 24b of the conveyance belt 23, clay removal efficiency can be improved. Second Embodiment Next, a second embodiment of the rotor lash embodying the present invention will be described with reference to FIG. 6.
In addition to the fact that the conveyor belt 23 corresponding to the conveyor belt 23 is made into a vertical jaw crusher so as to move almost from above to below,
The following configuration is different from the first embodiment.

A second driven shaft 37 is rotatably provided in front of the driven shaft 20, and a pair of sprockets 38 similar to the sprocket 6 are provided on the driven shaft 37. The endless conveyor belt 23 connects each pair of sprockets 6, 21, 38.
A hopper 39 is provided above the conveyance belt 23 in the vicinity of the driven shaft 37 . Now, when the drive shaft 5 rotates counterclockwise, the conveyance belt 23 moves around, and the material to be crushed, which has been introduced from the hopper 39 and placed on the conveyance belt 23, moves from the front to the rear on the conveyance belt 23. It is transported and falls from above between the movable teeth 33 of the swinging jaw 29 and the crushing surface of the crushing piece 24b.

At this time, the movable teeth 33 swing vertically and longitudinally to crush the object to be crushed. In addition, swing jaw 2
The vertical and longitudinal directions of 9 refer to the moving direction of the conveyance belt 23 corresponding to the swing jaw 29 and the direction corresponding to the conveyance belt 23, and the meanings of the vertical and longitudinal directions are reversed from those in the first embodiment. If configured as in the second embodiment, the material to be crushed can be conveniently fed even at a location away from the geo crusher.

Modifications It should be noted that the present invention is not limited to the configurations of the first and second embodiments described above, and various configurations such as those described below are also possible.

Furthermore, the rotation of the drive shaft 5 is not limited to the ratchet 9 and the hydraulic cylinder 14.

It is also possible to convert the reciprocating linear motion of the piston by an internal engine or a hydraulic cylinder into a rotational motion of the drive shaft 5 via a crank mechanism and a speed reduction mechanism. The drive shaft 5 can also be rotated by connecting a continuous rotation type hydraulic motor, AC or DC electric motor to the drive shaft 5 via gears, chains, belts, etc. Furthermore, continuous rotational motion by various motors may be converted into intermittent rotational motion of the drive shaft 5 via a Geneva gear or the like, and the swing jaw 2
9 approaches the conveyor belt 23 to crush the object to be crushed, the drive shaft 5 is stopped, and the swinging jaw 29 moves toward the conveyor belt 23.
The rocking motion of the swinging jaw 29 and the intermittent rotational motion of the drive shaft 5 are synchronized so that the two drive shafts 5 are intermittently fed when the two drive shafts 5 are spaced apart from each other. It is also possible to In addition, the conveyance belt 23
The structure is not limited to a chain in which a large number of chain elements 24C2 are connected, but may be formed by a belt or a rope.

Furthermore, it is also possible to arrange the swinging jaws 29 and the corresponding conveyor belts 23 obliquely.

Effects As detailed above, in this invention, a large number of supports are arranged in a row on the outer circumferential surface of a conveying belt, and crushed bodies are fixed to the outer surface of each support so as to protrude further in the conveying direction. By configuring the space between the opposing sides of each crushed body in the reversing movement section of the conveyor belt to be wider than that in the straight movement section of the conveyor belt, the objects to be crushed, such as rocks, can be Even if clay is mixed in, the clay, etc. can be removed and discharged efficiently, the equipment can operate in a stable state for a long period of time, and the material to be crushed can be crushed sufficiently finely. It has this excellent effect.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a first embodiment of a gear crusher embodying the present invention, FIG. 2 is a sectional view taken along line 2-2 in FIG. 1, and FIG. 3 is a sectional view taken along line 3-3 in FIG. 1. cross section,
4 and 5 are explanatory diagrams showing the action of the ratchet and the hydraulic cylinder, and FIG. 6 is a sectional view showing a second embodiment of the present invention. Drive shaft 5, sprocket 6, 21. Ratchet 9, hydraulic cylinder 14, piston rod 16, drive section 17, driven shaft 20, conveyance belt 23, support piece 24a, crushing piece 24b,
Swing jaw 29, movable teeth 33.

Claims (1)

[Claims] 1. An endless conveyance belt 23 that is circularly moved by the drive devices 5, 9, 14, 16, etc., and a direction in which the conveyance belt 23 moves and a direction opposite to the conveyance belt 23, which is provided to face the conveyance belt 23. Swing jaws 2 that can be swung individually
9, and is conveyed on the conveyance belt 23 by cooperation with a crushing body 24b provided on the conveyance belt 23 and a movable tooth 33 provided on the swing jaw 29 so as to face the crushing body 24b. In the jaw crusher for crushing objects, a large number of supports 24a are arranged in a row on the outer peripheral surface of the conveying belt 23, and the crushing bodies are arranged on the outer surface of each support 24a so as to protrude further in the conveying direction. 24b are fixedly installed, and the interval between the opposing sides of each crushed body 24b within the reversing movement section of the conveyance belt 23 is opened wider than that within the linear movement section of the conveyance belt 23. A jaw crusher featuring