JP2589126Y2 - Joe Crusher - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jaw crusher, and more particularly to a jaw crusher capable of easily adjusting the size of crushed stone.

[0002]

2. Description of the Related Art Conventionally, in order to adjust the crushed stone size of a jaw crusher, a toggle block is pushed out to the swing jaw side to provide a gap between the jaw crusher and a holding frame. When increasing the size, the amount of shim was reduced. After the shim adjustment, the toggle block is pulled back to the holding frame side, and then the wedge-shaped fastening piece interposed between the holding frame and the toggle block is tightened with a bolt or the like and fixed by being pressed into the inclined surface. Was formed as follows.

[0003]

However, in this conventional structure, when adjusting the size of crushed stone, etc., the wedge-shaped tightening pieces are in a biting state and are difficult to come off. Hammering out with a hammer.
Further, since the wedge-shaped fastening pieces are arranged on both sides of the toggle block, it takes much time and there is a problem that work efficiency is very poor only by human power.

The present invention has been made to solve such a conventional problem, and an object of the present invention is to provide a jaw crusher capable of easily and efficiently adjusting the size of crushed stone. Is to do.

[0005]

As a means for achieving the above object, in the jaw crusher of the present invention, one end of a toggle plate is provided at the tip of a swing jaw having fixed moving teeth opposed to fixed teeth fixed to a frame. a is brought into contact,
Frame slidably in the held toggle block is brought into contact with the other end of the toggle plate, in the jaw crusher to adjust the outlet clearance at a position adjustment performed by advancing and retracting the toggle block in the direction of the swing jaw, before
In the direction perpendicular to the position adjustment direction of the toggle block.
Frame arranged on both sides of the toggle block
Guide frames horizontally arranged on each side;
Horizontal guides provided on both sides of the
The height of the toggle block end side with respect to the
A downwardly inclined surface that is lowered;
The toggle block is held slidably.
A wedge-shaped fastening piece having an inclined surface facing the inclined surface of
The wedge-shaped fastening piece is pushed by the biasing force to the toggle block side.
By sliding in a square frame side of the spring to be fixed to the frame side lifting the toggle block;
Before the wedge-shaped fastening piece is pressed against the biasing force of the spring,
A first cylinder that pushes out the inward direction between the frames on the side of the toggle block; and a second cylinder that allows the toggle block to advance and retreat to the swing jaw side so that a shim can be attached to and detached from the toggle block holding frame. The configuration was adopted.

[0006]

First, the wedge-shaped tightening piece is first moved against the urging means.
Extrude inside the frame with a cylinder. As a result, the toggle block descends and the fixing to the frame side is released. Next, when the toggle block is advanced to the swing jaw side by the second cylinder, a gap is formed between the toggle block and the holding frame. Therefore, the shim is increased or decreased to adjust the shim thickness. Thereafter, the second cylinder is retracted to press the toggle block to the holding frame through the shim, and the urging means slides the wedge-shaped tightening piece toward the frame by releasing the pressure of the first cylinder. Then, the toggle block is lifted and fixed to the frame.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a longitudinal sectional view showing a side surface side of the jaw crusher of the present embodiment, FIG. 2 is a detailed view of a main part of the same, and FIG. 3 is a longitudinal sectional view showing a rear side of the same.
The jaw crusher A of this embodiment includes a frame 1, a swing jaw 2, a toggle block 3, and a cotter 4.
, Biasing means 5, first cylinder 6, and second cylinder 7
And the main configuration.

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

The swing jaw 2 swings a moving tooth 20 fixed to the front surface to crush stones with the non-moving tooth 11. The swing jaw 2 is driven by an eccentric shaft 20 supported by a bearing 12 of the frame 1. Supported. In the drawing, reference numeral 21 denotes a toggle sheet provided on the back side of the swing jaw 2, and reference numeral 22 denotes the swing jaw 2 at one end side of the frame 1 (in the direction of non-fixed teeth)
The tension rod is pulled 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 abutted on the toggle sheet 21 of the swing jaw 2 and receives a reaction force at the time of crushing. So,
As shown in FIG. 3, an inclined surface 31 which is formed to have substantially the same length as the inner width of the frame 1, and has a downwardly downwardly decreasing height toward the frame side is provided below both ends thereof. In the drawing, reference numeral 21 denotes 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 guide frames 10 and 10 provided at one end 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 and a surface thereof. The toggle block 3 is supported by the guide frame 10 while being slidably mounted on the frame 1 side.

The urging means 5 urges the cotter 4 toward the frame side to fix the toggle block 3, and the cotter 4 is provided with a pair of bolts 41, 41, and each of the cotters 4 connects the frame 1 to the frame. Spring 4 with penetrating
The cotter 4 is urged to slide toward the frame 1 by tightening the nut 43.

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. 1 and the ram 60 penetrates the frame 1 and is in contact with the end face of the cotter 4.

The second cylinder 7 is for adjusting shim of crushed stone size, and is fixed to a holding frame 13 provided at the rear of the guide frame 10 as shown in FIG. Reference numeral 70 is connected to the back surface of the toggle block 3. In the figure, 71 is the rod portion 7
This is a gap for inserting a shim formed between the rear surface of the toggle block 3 and the front surface of the holding frame 13 when 0 is advanced. In the figure, reference numeral 72 denotes an exit gap between the fixed tooth 11 and the moving tooth 20.

Next, the operation will be described. First, the first cylinder 6 is pressurized, and the cotter 4 is pushed out of the frame 1 by the ram 60 against the urging means 5. At this time, the inclined surface 40 of the cotter 4 moves to the higher side of the inclined surface 31 of the toggle block 3, so that the toggle block 3 which has been lifted by the cotter 4 is lowered and the fixing with the guide frame 10 is released. You. Next, pressure is applied to the second cylinder 7,
When the toggle block 3 is advanced toward the swing jaw 2 by the rod portion 70, a gap 71 is formed between the back surface of the toggle block 3 and the front surface of the holding frame 13, so that a shim is added to the gap 71.

Thereafter, the rod portion 7 of the second cylinder 7
0 is retracted and the toggle block 3 is
Is pressed against the holding frame 13 by the tension rod 22 to which the urging force has been applied. At this time, swing jaw 2
It advances to the fixed tooth 11 side by the thickness of the added shim and exit gap 7
2 would be narrowed.

In addition to the operation of the second cylinder 7, the first cylinder
When the hydraulic pressure of the cylinder 6 is released, the biasing means 5 causes the cotter 4 to slide toward the frame 1 by the repulsive force of the spring 42. Thereby, the inclined surface 40 of the cotter 4
Moves to the lower side of the inclined surface 31 of the toggle plate 3 again, and lifts the toggle block 3 and presses it against the upper guide frame 10 to fix the toggle block 3.

As described above, in the jaw crusher of the present embodiment, the fixing and releasing of the fixing of the toggle block 3 can be easily performed without manual operation. The toggle block 3 supported by the cotter 4 is
Is formed so as to be slidable on the inclined surface 40, the second cylinder 7 can be operated to easily perform shim adjustment.

The embodiments of the present invention have been described above.
The specific configuration of the present invention is not limited to this embodiment, and even a design change or the like within a range not departing from the gist of the present invention is included in the present invention.

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

[0021]

As described above, in the jaw crusher according to the present invention, as described above, the crushed stone size can be easily and efficiently adjusted because of the above-mentioned configuration. Further, there can be obtained an effect that the fixing and releasing of the toggle block can be easily performed simultaneously on the left and right sides without requiring any manual operation.

[Brief description of the drawings]

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

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

FIG. 3 is a longitudinal sectional view showing a back side of the jaw crusher according to the first embodiment.

[Explanation of symbols]

 Reference Signs List A jaw crusher 1 frame 2 swing jaw 3 toggle block 4 cotter (wedge-shaped fastening piece) 5 urging means 6 first cylinder 7 second cylinder 10 guide frame (frame) 13 holding frame 30 toggle plate 31 provided on toggle block Inclined surface 40 Inclined surface provided on cotter 42 Spring (biasing means)

Claims (1)

(57) [Scope of request for utility model registration] An end of a toggle plate is brought into contact with a tip of a swing jaw to which a moving tooth opposed to a fixed tooth fixed to a frame is fixed, and a toggle block slidably held on the frame is used for the toggle plate. Contact the other end side and move the toggle block in the direction of the swing jaw.
In the jaw crusher for adjusting the outlet gap by the position adjustment performed by moving forward and backward, in the direction orthogonal to the position adjustment direction of the toggle block,
And the frames arranged on both sides of the toggle block
A guide frame horizontally disposed on the side of the toggle block ; and a horizontally disposed guide frame provided on both sides of the toggle block.
Of the toggle block end side with respect to the guide frame of
A downwardly inclined surface having a reduced height; and a state in which each is slidably held by the guide frame.
The slope facing the slope of the toggle block
A wedge-shaped fastening piece having the wedge-shaped fastening piece with a biasing force on the toggle block side
A spring that lifts the toggle block and secures the toggle block to the frame side by sliding the wedge-shaped tightening piece against the biasing force of the spring.
A first cylinder that pushes out the inward direction between the frames on the side of the toggle block; and a second cylinder that allows the toggle block to advance and retreat to the swing jaw side so that a shim can be attached to and detached from the toggle block holding frame. Jaw crusher characterized by being.