JPH0588636U - Jaw crusher - Google Patents

Abstract

(57) [Summary] [Purpose] To provide technology that enables easy adjustment of crushed stone size. [Structure] Inclined surfaces 31 provided downward at both ends of the toggle block 3 and having a height lower toward the frame 1 side;
A cotter slidably held by the frame 1 and having an inclined surface 40 that faces the inclined surface 31 of the toggle block 3; and a frame for lifting the toggle block 3 by sliding the cotter 4 toward the frame 1. An urging means 5 for fixing the cotter 4 to the frame 1;
A second cylinder 7 that pushes the toggle block 3 forward and backward toward the swing jaw 2 side so that a shim can be attached to and detached from the toggle block holding frame 13.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a jaw crusher, and more particularly, to a jaw crusher that can easily adjust the size of crushed stone.

[0002]

[Prior Art]

 Conventionally, the crushed stone size of the jaw crusher has been adjusted by pushing the toggle block to the swing jaw side to create a gap between the crushed stone and the holding frame.When the crushed stone size is reduced, a crucible is added and when the crushed stone size is increased. It was done by reducing the number of areas. After adjusting the shim, pull back the toggle block to the holding frame side, and then tighten the wedge-shaped tightening piece interposed between the holding frame and the toggle block with bolts and press it into the inclined surface to fix it. Was formed to do.

[0003]

[Problems to be solved by the device]

 However, in this conventional structure, when adjusting the size of the crushed stone, the wedge-shaped fastening piece is in a biting state and is difficult to come off, so a round steel or the like is inserted from the hole formed in the frame and hammered out. In addition, since the wedge-shaped fastening pieces are arranged on both sides of the toggle block, it takes time and labor, and there is a problem that work efficiency is very poor only with human power.

The present invention has been made in order to solve the conventional problems, and an object thereof is to provide a jaw crusher that can easily and efficiently adjust the size of crushed stones. To do.

[0005]

[Means for Solving the Problems]

 In the jaw crusher of the present invention as means for achieving the above-mentioned object, one end side of the toggle plate is brought into contact with the tip of the swing jaw fixed with the moving teeth which are opposed to the stationary teeth fixed to the frame, and is attached to the frame. In a jaw crusher in which the other end of the toggle plate is brought into contact with a toggle block held slidably and the exit gap is adjusted by adjusting the position of the toggle block, the frame side is provided downward at both ends of the toggle block. A wedge-shaped fastening piece that has a height that decreases toward the side; a wedge-shaped fastening piece that is slidably held by the frame and has an inclined surface that faces the tilted surface of the toggle block; and the wedge-shaped fastening piece is a frame. Urging means for lifting the toggle block and fixing it to the frame side by sliding it to the side; and the wedge-shaped clamping piece to the frame. It has a configuration which comprises a; a first cylinder pushes inwardly; and second cylinders to enable the shim removably between the toggle block retaining frame is advance and retreat the toggle block to swing jaw side.

[0006]

[Action]

 First, the wedge-shaped fastening piece is pushed out of the frame by the first cylinder against the biasing means. As a result, the toggle block descends and the fixation with the frame side is released. Next, when the toggle block is advanced to the swing jaw side by the second cylinder, a gap is created between the toggle block and the holding frame, so the shim is increased or decreased to adjust the shim thickness. After that, the second cylinder is retracted to press the toggle block to the holding frame through the shaft, and the pressure of the first cylinder is released so that the biasing means slides the wedge-shaped fastening piece toward the frame. Then, the toggle block is lifted and fixed to the frame.

[0007]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a vertical cross-sectional view showing a side surface side of a jaw crusher of the present embodiment, FIG. 2 is a detailed view of essential parts of the same, and FIG. 3 is a vertical cross-sectional view showing a rear surface side of the same jaw crusher. The jaw crusher A of this embodiment mainly includes a frame 1, a swing jaw 2, a toggle block 3, a cotter 4, a biasing means 5, a first cylinder 6, and a second cylinder 7. I am trying.

The frame 1 serves as a machine base for the jaw crusher A, and has guide frames 10 and 10 horizontally arranged facing each other at a vertical position on an inner surface of one end side on both sides of the frame. The stationary teeth 11 are inclined and fixed to the end side.

The swing jaw 2 swings a moving tooth 20 fixed to the front surface to crush stones together with the stationary tooth 11, and is mounted on an eccentric shaft 20 pivotally supported by a bearing 12 of the frame 1. It is pivotally supported. In the figure, 21 is a toggle seat provided on the back side of the swing jaw 2, and 22 is a tension rod for pulling the swing jaw 2 toward one end of the frame 1 (in the direction of the non-moving teeth) by the urging force of the spring 23.

The toggle block 3 supports the swinging motion of the swing jaw 2 via a toggle plate 30 that is in contact with the toggle sheet 21 of the swing jaw 2, and receives a reaction force at the time of crushing. In addition, as shown in FIG. 3, inclined surfaces 31 that are formed to have substantially the same length as the inner width of the frame 1 and that have a height that decreases downward toward the frame side are provided below both ends of the frame 1. Reference numeral 21 in the drawing is a toggle sheet similar to the toggle sheet provided on the swing jaw 2. Both ends of the toggle block 3 are slidably mounted in the front-rear direction between the guide frames 10 and 10 provided on one end side of the frame 1.

The cotter 4 serves as a wedge-shaped fastening piece for fixing the toggle block 3, and as shown in FIGS. 2 and 3, an inclined surface 31 provided on the toggle block 3 is provided. The toggle block 3 is supported by the guide frame 10 slidably mounted on the frame 1 side with the inclined surface 40 facing each other.

The biasing means 5 biases the cotter 4 toward the frame to fix the toggle block 3, and the cotter 4 is provided with a pair of bolts 41, 41 so as to project the frame 1 respectively. A spring 42 is attached in a penetrating state and a nut 43 is tightened to urge the cotter 4 to slide toward the frame 1.

The first cylinder 6 pushes the cotter 4 inward of the frame 1 against the urging force of the urging means 5 provided on the cotter 4, and the ram cylinder is a frame. 1, the ram 60 penetrates the frame 1 and contacts the end surface of the cotter 4.

The second cylinder 7 is for adjusting a crushed stone size shim, and is fixed to a holding frame 13 provided at the rear of the guide frame 10 as shown in FIG. 70 is connected to the back surface of the toggle block 3. Reference numeral 71 in the figure denotes a shim insertion gap formed between the back surface of the toggle block 3 and the front surface of the holding frame 13 when the rod portion 70 is advanced. Further, reference numeral 72 in the drawing denotes an exit gap between the stationary teeth 11 and the moving teeth 20.

Next, the operation will be described. First, the first cylinder 6 is pressurized and the ram 60 pushes the cotter 4 into the frame 1 against the biasing means 5. At this time, the sloping surface 40 of the cotter 4 moves to a higher position than the sloping surface 31 of the toggle block 3, so that the toggle block 3 that had been lifted by the cotter 4 is lowered and the fixation with the guide frame 10 is released. Be done. Next, when the second cylinder 7 is pressurized and the rod portion 70 advances the toggle block 3 toward the swing jaw 2, a gap 71 is formed between the back surface of the toggle block 3 and the front surface of the holding frame 13. Therefore, a shim is added to this gap 71.

After that, the rod portion 70 of the second cylinder 7 is retracted, and the toggle block 3 is pressure-bonded to the holding frame 13 by the tension rod 22 on which the biasing force of the spring 23 acts. At this time, the swing jaw 2 advances toward the stationary tooth 11 side by the thickness of the added shim and narrows the outlet gap 72.

Further, by releasing the hydraulic pressure of the first cylinder 6 together with the operation of the second cylinder 7, the biasing means 5 causes the cotter 4 to slide toward the frame 1 side by the repulsive force of the spring 42. As a result, the inclined surface 40 of the cotter 4 moves again to the lower side of the inclined surface 31 of the toggle plate 3, and the toggle block 3 is lifted and press-fitted with the upper guide frame 10 to fix the toggle block 3.

As described above, in the jaw crusher of the present embodiment, the toggle block 3 can be fixed and released easily without manpower. Further, since the toggle block 3 supported by the cotter 4 is slidably formed on the inclined surface 40 of the cotter 4, the second cylinder 7 can be operated to easily perform the shim adjustment. ..

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and even if there are design changes and the like within the scope not departing from the gist of the invention. Included in the present invention.

For example, in the embodiment, the ram cylinder is used as the first cylinder 6, but the shape of the cylinder is arbitrary.

[0021]

[Effect of the device]

 As described above, since the jaw crusher of the present invention has the above-mentioned configuration, the crushed stone size can be adjusted easily and efficiently. In addition, it is possible to easily fix and release the toggle block at the same time on the right and left side without requiring manual labor.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a side surface side of a jaw crusher according to an embodiment of the present invention.

FIG. 2 is a detailed view showing a main part of the same.

FIG. 3 is a vertical cross-sectional view showing the back side of the jaw crusher of the above.

[Explanation of symbols]

 A Jaw crusher 1 Frame 2 Swing jaw 3 Toggle block 4 Cotter (wedge-shaped tightening piece) 5 Energizing means 6 1st cylinder 7 2nd cylinder 10 Guide frame (frame) 13 Holding frame 30 Toggle plate 31 Provided on the toggle block Inclined surface 40 Inclined surface provided on the cotter 42 Spring (biasing means)

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A tip of a swing jaw having fixed stationary teeth fixed to a stationary tooth fixed to a frame is brought into contact with one end of the toggle plate, and a toggle block slidably held on the frame is used to move the toggle plate. In a jaw crusher in which the other end side is brought into contact and the outlet clearance is adjusted by adjusting the position of the toggle block, inclined surfaces provided downward at both ends of the toggle block and having a height lowered toward the frame side; A wedge-shaped tightening piece which is slidably held and has an inclined surface that faces the inclined surface of the toggle block; and the wedge-shaped tightening piece slides toward the frame side to lift the toggle block and raise the frame side. Urging means for fixing to;
A first cylinder that pushes the wedge-shaped fastening piece inward of the frame; and a second cylinder that moves the toggle block forward and backward to the swing jaw side so that a shim can be attached to and detached from the toggle block holding frame. A jaw crusher characterized by being present.