JP2010012388A - Jaw crusher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a jaw crusher in which a gap for crushing can be set in a simple and quick manner. <P>SOLUTION: The jaw crusher is provided with machine bases 50 composed by assembling side plates with different directions, a movable seat 60, a fixed seat 70, a crushing process adjusting mechanism 80, and a crushing gap automatically adjusting mechanism 90. The movable seat 60 is mounted on the machine bases 50 by an eccentric shaft 61 and has movable blades 62 on the crushing face. The fixed seat 70 has fixed blades 71 fixed to the machine bases 50 and corresponding to the movable blades 62 of the movable seat 60. In the crushing gap automatically adjusting mechanism 90, a steel tank 91 on a braking plate 94 and a pair of wedge-like blocks 92 are mounted on a position adjusting seat 93 fixed to the machine base 50. The jaw crusher permits easy setting of the crushing gap W by moving the position of the pair of the wedge-like blocks 92, without performing complicated processes. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a jaw crusher.

  JAW CRUSHER is a tool used in industry to crush substrates such as ore, building waste (concrete), road coal tar or scouring ore scrap. As shown in FIG. 1, the configuration of the jaw crusher includes a movable seat 20, a fixed seat 30, and a gap adjusting mechanism 40 mounted on the machine base 10. The movable seat 20 is mounted on the machine base 10 by the eccentric shaft 21, the gap adjusting mechanism 40 abuts against the movable seat 20 by a toggle plate 41, and the toggle plate 41 is separated from the movable seat 20 by a lever 22 having a compression sprint. The space between the adjusting mechanism 40 is tightly stretched. Thereby, when the motor rotates the eccentric shaft 21 by the belt pulley 23, the movable seat 20 undergoes a rotational displacement movement along with the eccentric shaft 21, and the movable tooth plate 24 of the movable seat 20 and the fixed teeth of the fixed seat 30. By performing the opening and closing movement with the plate 31 facing each other, the increase and decrease of the crushing gap W between them can be repeated, and the input stone block can be crushed.

  When the fixed tooth plate 31 and the movable tooth plate 24 are worn, or when the crushing gap W is adjusted in accordance with the crushing size of different stone blocks, the conventional adjustment method of the gap adjusting mechanism 40 starts with the compression spring of the lever 22. Loosen. After that, the adjustment block 43 is adjusted to an appropriate position by the piston or the hydraulic cylinder 42, that is, the position of the movable tooth plate 24 is adjusted by the toggle plate 41. Subsequently, the floor plate 44 is manually increased or decreased until the required thickness is reached. Finally, the compression spring of the lever 22 is tightened to a certain length. The operation for adjusting the crushing gap W takes about 30 to 40 minutes.

  As shown in FIG. 2, when the eccentric shaft 21 of the movable seat 20 is attached to the machine base 10, the conventional method welds the lower bearing seat 11 to the side plate 12 of the machine base 10. In addition, since the plurality of reinforcing plates 13 are welded downward and the reinforcing pillars 14 are welded laterally, not only the overall configuration is large and heavy, but also the upper and lower bearing seats 15 and 11 give an average bearing force to the outer bearings. Can not. Moreover, since the machine base 10 is a conventional structure comprised by welding the whole, not only a volume becomes large, but a conveyance difficulty and cost are high.

A main object of the present invention is to provide a jaw crusher capable of easily and quickly setting a crushing gap in order to solve the problem that the process of adjusting the crushing gap is complicated and time-consuming in the prior art.
Another object of the present invention is to provide a jaw crusher capable of adjusting the crushing stroke by setting an eccentricity.
Another object of the present invention is to provide a jaw crusher that can absorb and absorb an abnormally large load.

Another object of the present invention is to provide a jaw crusher that can absorb an impact force when a crushed material falls.
Another object of the present invention is to provide a jaw crusher that can uniformly support a bearing seat and improve the rigidity of the airframe.
Yet another object of the present invention is to provide a jaw crusher that is easy to transport and inexpensive to transport.

In order to achieve the above-described object, a jaw crusher according to the present invention includes a machine base, a movable seat, a fixed seat, a crushing stroke adjusting mechanism, and a crushing gap automatic adjusting mechanism configured by assembling side plates in different directions.
The movable seat is mounted on the machine base by an eccentric shaft and has a movable tooth plate on the crushing surface.
The fixed seat has a fixed tooth plate fixed to the machine base and corresponding to the movable tooth plate of the movable seat.

  In the crushing stroke adjusting mechanism, the connecting shaft at the top end of the crushing stroke adjusting seat is mounted on the machine base, and the rotating shaft of the crushing stroke adjusting seat is mounted on the machine base by the connecting shaft of the eccentric sleeve. Also, there are toggle plates at both ends between the crushing stroke adjusting seat and the bottom of the movable seat, and the toggle plates abut against each other tightly by levers of the movable seat having compression springs at both ends.

In the crushing gap automatic adjusting mechanism, a steel tank on a braking plate and a pair of triangular wedge-shaped blocks are arranged and mounted on a position adjusting seat fixed to a machine base. The brake plate is mounted between the steel tank on the brake plate and the intermediate part of the crushing stroke adjustment seat, and both ends of the brake plate abut against each other closely by levers of the adjustment seat having a compression spring. The position of the wedge block can be controlled to change the position of the steel tank on the brake plate. Furthermore, a crushing gap between the movable tooth plate and the fixed tooth plate can be set.
(effect)
The jaw crusher according to the present invention described above can adjust the crushing stroke by setting the crushing gap by moving the positions of the pair of triangular wedge-shaped blocks and setting the eccentricity.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 3 and 4, the jaw crusher according to the present embodiment includes a movable seat 60, a fixed seat 70, a crushing stroke adjusting mechanism 80, and a crushing gap automatic adjusting mechanism 90 mounted on the machine base 50.

The movable seat 60 is mounted on the machine base 50 by an eccentric shaft 61 and has a movable tooth plate 62 on the crushing surface. Furthermore, since the movable seat 60 receives the object to be crushed by the throwing-type throwing funnel 55 provided after the mounting position of the eccentric shaft 61, the situation in which the object to be crushed directly impacts the bearing of the movable seat 60 is avoided. The life of the bearing can be extended.
The fixed seat 70 has a fixed tooth plate 71 fixed to the machine base 50 and corresponding to the movable tooth plate 62 of the movable seat 60.

  In the crushing stroke adjusting mechanism 80, the connecting shaft at the top end of the crushing stroke adjusting seat 81 is attached to the machine base 50. Further, the rotating shaft 811 of the crushing stroke adjusting seat 81 is attached to the machine base 50 by the connecting shaft of the eccentric sleeve 812. Thus, since the eccentric sleeve 812 has an eccentric distance between the inner diameter and the outer diameter, the crushing stroke can be changed by adjusting the angle of the eccentric sleeve 812. Further, toggle plates 82 are provided at both ends between the crushing stroke adjusting seat 81 and the bottom of the movable seat 60, and the toggle plates 82 abut against each other tightly by a lever 83 of the movable seat having a compression spring.

  Since the toggle plate 82 has a fixed end located below and a swing end located above, most of the inertial mass effect in the crushing process is provided from the main body of the movable seat 60. Thereby, the inertial mass effect of the belt pulley and the flywheel can be made relatively small as compared with the conventional one, and the weight of the belt pulley and the flywheel can be greatly reduced. The angle of the crushing process at the lower part of the movable seat 60 is an angle that reciprocates from the movable tooth plate 62 to the lower portion of the fixed tooth plate 71, so that the service life of the fixed tooth plate 71 is relatively longer than that of the conventional one. long.

  Further, in the crushing process, the movable tooth plate 62 reciprocates to the lower side of the fixed tooth plate 71 due to the configuration of the toggle plate 82. Therefore, compared with the conventional movement method in which the movable tooth plate reciprocates in the upward direction of the fixed tooth plate. As a result, the crushing effect is relatively good and the operating capacity is greatly increased. The movable seat lever 83 is connected to the first connecting rod 84. The first connecting rod 84 has a connecting shaft at one end attached to the brake plate 94 of the crushing gap automatic adjusting mechanism 90, and the other end of the first connecting rod 84 is connected to one end of the second connecting rod 85. The other end of the second connecting rod 85 is connected to the movable seat 60.

  As shown in FIG. 5 and FIG. 6, the crushing gap automatic adjusting mechanism 90 has a steel tank 91 and a pair of triangular wedge-shaped blocks 92 on the brake plate 94 on a position adjusting seat 93 fixed to the machine base 50. Installed in an array. The brake plate 94 is mounted between the steel tank 91 on the brake plate and the intermediate portion of the crushing stroke adjustment seat 81, and the brake plate 94 abuts each other closely by the lever 95 of the adjustment seat having a compression spring. By controlling the position of the triangular wedge-shaped block 92, the position of the steel tank 91 on the brake plate can be changed. Further, the crushing gap W between the movable tooth plate 62 and the fixed tooth plate 71 can be set by the brake plate 94, the crushing stroke adjusting seat 81, the toggle plate 82 and the movable seat 60. This eliminates the need to loosen the spring or tighten the spring during the crushing gap adjustment process, so it is easier to adjust compared to the conventional configuration where the spring is loosened during adjustment and the spring must be tightened when the adjustment is completed. Convenience.

  The triangular wedge-shaped block 92 is connected to the movable end of the propulsion lever 96, the fixed end of the propulsion lever 96 is connected to the support portion 97 of the position adjusting seat 93, and the propulsion lever 96 can be a hydraulic cylinder. In addition, non-crushing objects such as bulldozer tooth halos and rock drill tungsten steel rods entered the crushing chamber 57 and the crushing pressure was too high, exceeding the set value of the safety valve of the hydraulic circuit. When the triangular wedge-shaped block 92 is quickly retracted, the crushing gap is increased, thereby quickly discharging the non-crushing object from the crushing chamber, preventing the parts from being damaged and protecting the main body of the machine base. Thus, it has the effect that the load which is too large abnormally can be canceled.

  In addition, a buffer mechanism 100 is provided below the insertion port 56. The buffer mechanism 100 has a buffer seat 102 having an impact plate 101 mounted on the lower side of the insertion port 56, and the buffer seat 102 has a vibration absorbing spring 103 connected in the opposite direction of the impact plate 101. For this reason, when the object to be crushed falls, the impact force is absorbed, and a situation where a receiving unit (not shown) is directly impacted can be avoided, and damage to the parts can be prevented.

  As shown in FIGS. 7 and 8, the angle of the toggle plate 82 is adjusted by adjusting the angle at which the eccentric sleeve 812 is attached to the machine base 50. In other words, since the crushing stroke can be adjusted, when crushing a crushing object having a relatively low pressure strength, a relatively long crushing stroke can be selected to greatly improve the operation capacity. When crushing a crushing object having a relatively high pressure strength, a relatively short crushing process can be selected to reduce the load on the part, thereby avoiding damage to the part and extending the life of the part. Thereby, since this embodiment has an effect which adjusts a crushing process by the method of setting an angle by eccentricity, it can respond to various crushing objects.

  As shown in FIGS. 9 and 10, the method of attaching the eccentric shaft 61 of the movable seat 60 to the machine base 50 is performed by attaching the bearing seats 51 to the bearing seat holes 53 of the integrated side plates 52 on both sides. A plurality of support pillars 54 are evenly arranged and fixed between the side plates 52 on both sides along the outer periphery of 53. For this reason, a bearing seat is supported uniformly and the rigidity of an airframe is improved. In addition, assembling the machine base 50 by assembling side plates 52 on both sides used for mounting the movable seat 60 and side plates in different directions (not shown in the drawing) is designed to assemble blocks, so parts must be placed on site. Can be transported and assembled. Therefore, transportation can be simplified and transportation cost can be reduced.

  With the above-described configuration, the crushing gap automatic adjusting mechanism 90 according to the present embodiment has a lateral force applied to the sliding triangular wedge-shaped block 92 by the driving force of the driving lever 96 and the tensile force of the lever 83 of the movable seat and the lever 95 of the adjusting seat. A component force is generated, and the steel tank 91 and the brake plate 94 on the brake plate 94 are moved. Subsequently, the movable seat 60 is moved from the toggle plate 82 by the swinging movement of the crushing stroke adjusting seat 81, and fixed to the movable tooth plate 62. A crushing gap W between the tooth plate 71 is set. As a result, as long as the position of the pair of triangular wedge-shaped blocks 92 is moved, the crushing gap can be set in 1 to 2 minutes without performing another operation. Therefore, the crushing gap W can be set easily and quickly. Can do.

  As shown in FIGS. 4 and 7, the crushing stroke adjusting seat 81 is formed by connecting a horizontal rib and a flat plate in the middle of two arcuate shaped ribs, and the place facing the toggle plate 82 that abuts each other is received. A place where the braking plates 94 between the connecting shaft and the receiving point abut each other is a fixed point. Thereby, when the crushing stroke adjustment seat 81 receives an abnormal load, it is possible to cause a torsional bending in the section below the fixed point due to the flexibility of the engineering rib, and to offset the abnormal load. It has the effect of absorbing an abnormally large load.

The schematic diagram which shows the structure of the conventional jaw crusher. The perspective view which shows the structure of the machine base of the conventional jaw crusher. The schematic diagram which shows the structure of the jaw crusher by one Embodiment of this invention. The perspective view which shows the structure of the crushing process mechanism and crushing clearance gap automatic adjustment mechanism in one Embodiment of this invention. The perspective view which shows the movement state of the wedge-shaped block in one Embodiment of this invention. The perspective view which shows the movement state of the wedge-shaped block in one Embodiment of this invention. The perspective view which shows the structure of the crushing process adjustment seat in one Embodiment of this invention. The schematic diagram which shows the state which adjusts the eccentric sleeve of the crushing stroke adjustment seat in one Embodiment of this invention. The disassembled perspective view of the partial structure of the machine base in one Embodiment of this invention. FIG. 10 is a sectional view taken along line 10-10 in FIG. 3;

Explanation of symbols

  10: Machine base, 11: Lower bearing seat, 12: Side plate, 13: Reinforcement plate, 14: Reinforcement pillar, 15: Upper bearing seat, 20: Movable seat, 21: Eccentric shaft, 22: Lever, 23: Belt pulley, 24: movable tooth plate, 30: fixed seat, 31: fixed tooth plate, 40: clearance adjustment mechanism, 41: toggle plate, 42: hydraulic cylinder, 43: adjustment block, 44: floor plate, 50: machine base, 51: bearing Seat, 52: side plate, 53: bearing seat hole, 54: support column, 55: loading funnel, 56: loading port, 57: crushing chamber, 60: movable seat, 61: eccentric shaft, 62: movable tooth plate, 70: Fixed seat, 71: Fixed tooth plate, 80: Crushing stroke adjusting mechanism, 81: Crushing stroke adjusting seat, 811: Rotating shaft, 812: Eccentric sleeve, 82: Toggle plate, 83: Lever of movable seat, 84: First connection Rod, 85: Second connecting rod, 90: Break Automatic clearance adjustment mechanism, 91: steel tank, 92: triangular wedge block, 93: position adjustment seat, 94: brake plate, 95: adjustment seat lever, 96: propulsion lever, 97: support, 100: shock absorbing mechanism, 101: shock plate, 102: buffer seat, 103: vibration absorbing spring, W: crushing gap

Claims (8)

A jaw crusher equipped with a movable seat, a fixed seat, a crushing stroke adjustment mechanism and a crushing gap automatic adjustment mechanism mounted on the machine base,
The movable seat is mounted on the machine base by an eccentric shaft, has a movable tooth plate on the crushing surface,
The fixed seat has a fixed tooth plate fixed to the machine base and corresponding to the movable tooth plate of the movable seat,
The crushing stroke adjusting mechanism has a connecting shaft at the top of the crushing stroke adjusting seat mounted on the machine base, a rotating shaft of the crushing stroke adjusting seat mounted on the machine base by a connecting shaft of an eccentric sleeve, and a crushing stroke adjusting seat and a movable seat. Have a toggle plate at both ends between the bottom of the two, the ends of the toggle plate abut against each other tightly by a lever of a movable seat with a compression spring,
The crushing gap automatic adjustment mechanism is equipped with a steel tank on the brake plate and a triangular wedge-shaped block arranged in a position adjustment seat fixed to the machine base, and the brake plate is crushed with the steel tank on the brake plate. It is mounted between the middle part of the stroke adjusting seat, and both ends of the braking plate are brought into close contact with each other by the lever of the adjusting seat having a compression spring, and the position of the triangular wedge-shaped block is controlled, and the steel tank on the braking plate The jaw crusher is characterized by setting a crushing gap between the movable tooth plate and the fixed tooth plate in addition to changing the position of the tooth plate.   The lever of the movable seat is connected to the first connecting rod, the connecting shaft at one end of the first connecting rod is attached to the brake plate of the crushing gap automatic adjusting mechanism, and the other end of the first connecting rod is one end of the second connecting rod. The jaw crusher according to claim 1, wherein the second connecting rod is connected to the movable seat at the other end.   The triangular wedge-shaped blocks are arranged in a pair and connected to the movable end of the propulsion lever, the fixed end of the propulsion lever is connected to the support portion of the position adjustment seat, and the propulsion lever is a hydraulic cylinder. The jaw crusher according to Item 1.   The triangular wedge-shaped blocks are arranged in a pair and connected to the movable end of the propulsion lever, the fixed end of the propulsion lever is connected to the support portion of the position adjustment seat, and the propulsion lever is a hydraulic cylinder. Item 3. A jaw crusher according to Item 2.   The jaw crusher further has a buffer mechanism under the inlet, and the buffer mechanism is attached to the lower side of the inlet with the connecting shaft of the buffer seat having the impact plate, and the buffer seat is connected in the opposite direction of the impact plate. The jaw crusher according to claim 4, further comprising a vibration absorbing spring formed.   The jaw crusher according to claim 4, wherein the crushing stroke adjusting seat is configured by connecting a horizontal rib and a flat plate between two arc-shaped work ribs.   The machine base is characterized in that the bearing seats are mounted in the bearing seat holes of the integrated side plates on both sides, and a plurality of support pillars are evenly arranged and fixed between the side plates on both sides along the outer periphery of the bearing seat holes. The jaw crusher according to claim 4.   The jaw crusher according to claim 4, wherein the machine base is constructed by assembling side plates in different directions.

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