JPS5855949Y2 - Joey Craftssia - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement in the tooth roots of a show crusher, and more specifically, to a show crusher that has improved crushing ability and reduced power consumption.

As shown in FIG. 1, the conventional show crusher has a crushing chamber 3 with a V-shaped cross section formed by opposing a fixed tooth plate 1 and a movable tooth plate 2, and is attached to a movable jaw 4. Movable tooth plate 2
Due to the cooperative action of the flywheel 5 and the trouble 6, the crushing movement
Do a massaging exercise.

In the figure, 7 is a cheek plate, 8 is a frame, and 9 is a tail block.

The raw material to be crushed supplied into the crushing chamber 3 is crushed by the movement of the movable tooth plate 2, and the crushed material is discharged when both tooth roots move away from each other.

In the conventional single-trouble crusher shown in the figure, the structure of the tooth roots and the crushing chamber is such that the entire area of the crushing chamber is used for crushing, and the crushing movement and massaging movement are started from the upper part of the crushing chamber, and are started at the lower part of the crushing chamber. It will undergo full-scale crushing action.

Therefore, in the case of fine crushing, the load becomes excessive, power consumption increases, premature wear and uneven wear of the tooth plates often occur, and when the outlet gap becomes 15 mm or less, the crushing capacity is extremely reduced.

Therefore, the purpose of this invention was to eliminate the drawbacks of the conventional equipment as described above, and to provide a show crusher that can exhibit effective crushing ability even when crushing fine pieces, and furthermore, can reduce the power used. It is something that

According to this invention, the fixed tooth plate side has a fixed tooth plate whose surface facing the movable tooth root has a convex arc shape and is shortened to a size that occupies almost the lower half of the V-shaped crushing chamber, and the fixed tooth plate on the upper side. A pre-crushing chamber is formed by a lining plate, and the fixed tooth plate is protruded so that a distinct step is formed at the joint between the lining plate and the fixed tooth plate, and the capacity of the crushing chamber is expanded above the step. and an effective crushing chamber below the step, the above objective can be distantly achieved.

This invention will be explained below based on a preferred embodiment shown in FIG.

In FIG. 2, movable tooth plate 2. Movable jaw4. Flywheel5.
Toggle6. Cheek plate 7. Frame 8. Each tail block 9 is similar to each part of the conventional device shown in FIG.

The characteristic structure different from the conventional device shown in FIG. 1 is that the length in the vertical direction of the effective crushing surface of the conventional fixed tooth plate 1 is shortened, and a shortened fixed tooth plate 10 is attached only to the lower part of the crushing chamber. 3a
In line with this, a lining plate 20 was installed in place of the fixed tooth plate at the top of the crushing chamber, which corresponds to the shortened length, and the volume was significantly expanded at the connection point with the effective crushing chamber 3a. This is because a pre-crushing chamber 3b is formed.

Although the illustrated fixed tooth plate 10 is short so that it occupies approximately half of the lower part of the crushing chamber, it can be selected from a range that occupies 1/3 to 2/3 of the lower part of the crushing chamber.

The fixed tooth root 10 has a surface facing the movable tooth plate 2 in a convex arc shape, and protrudes so as to form a distinct step at the joint with the lining plate 20.

With this configuration, the ■-shaped crushing chamber is divided into a lower effective crushing chamber 3a and an upper crushing preliminary chamber 3b, and this crushing preliminary chamber 3b brings the lower effective crushing chamber 3a into a highly filled state. Adjustments can be made to

For this reason, the degree of filling of the raw material to be crushed that is sent into the effective crushing chamber 3a is improved, the crushing capacity is increased, and the particle shape of the crushed material is also improved, making it possible to make the particles finer.

In addition, in this invention, since the opposing surface of the fixed tooth plate 10 to the movable tooth plate 2 is shaped like a convex arc, the bite angle can be made large at the upper inlet and small at the lower outlet. In the upper part, where the included angle is large, objects with large particle sizes will slip and escape upwards, which acts to prevent overload.
In the lower part where the biting angle is small, the force by the movable tooth plate 2 is applied almost at a right angle, so an effective crushing action is exhibited.

In addition, since the show crusher shown in Figure 2 is simply made by shortening the length of the fixed tooth plate, the conventional device main body can be used as is, and furthermore, the wear part is reduced by the shorter length than the conventional fixed tooth plate. This will be advantageous from the viewpoint of cost reduction.

In order to form the pre-crushing chamber 3b which has a significantly expanded capacity at the joint with the effective crushing chamber 3a, the above example shows the case where only the fixed tooth plate is shortened, but the fixed tooth root and the movable tooth plate are shortened. Even when both are shortened (10.10' in FIGS. 3 and 4), the same effect as above can be obtained.

Even when the movable tooth plate is shortened, it is preferable to install a lining plate 20' in place of the movable tooth plate in the upper part of the crushing chamber.

In order to see the crushing capacity and power usage of the device of this invention, a comparative example with a conventional device is shown below.

Comparative Example 1 The device shown in FIG. 1 was used as a conventional device, and the device shown in FIG. 2, which was equipped with a fixed tooth plate that was shortened to approximately half the length of the conventional device, was used as the device of the present invention.

As is clear from the results in the table below, according to the device of the present invention,
It can be seen that even when the exit gap is 12 mm, the throughput is significantly improved compared to the conventional device, and the power consumption can also be significantly reduced compared to the conventional device.

Comparative Example 2 The device shown in FIG. 1 was used as the conventional device, and the device shown in FIG. 5, in which both the fixed tooth root and the movable tooth root were shortened to approximately half the length of the conventional device, was used as the device of the present invention.

As is clear from the results in the table below, it can be seen that even when the outlet gap is 15 mm, the device of the present invention is superior to the conventional device in terms of both throughput and power consumption.

Note that by making the shortened fixed tooth plate 10 and movable tooth plate 10' the same shape as shown in FIG. 5, they can be made compatible.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional single-trouble type show crusher, and FIGS. 2, 3, and 4 are sectional views showing an embodiment of the show crusher according to this invention.

Claims (1)

[Scope of utility model registration request] In a show crusher in which a crushing chamber 3 having a V-shaped cross section is formed by disposing a fixed tooth plate 1 and a movable tooth plate 2 which is oscillated by power, the crushing chamber 3 is supplied with crushed raw materials into the crushing chamber, the fixed tooth plate side The fixed tooth plate 10 has a convex arc-shaped surface facing the movable tooth plate 2 and is shortened to a size that occupies almost the lower half of the V-shaped crushing chamber 3, and a lining plate 20 on the upper side thereof.
The fixed tooth plate 10 is formed with
A pre-crushing chamber 3b which protrudes and expands the volume of the crushing chamber 3 above the step, and an effective crushing chamber 3a below the step.
A show crusher consisting of.