JP2981353B2 - Crushing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher capable of efficiently crushing large natural ores such as limestone at a time.

[0002]

2. Description of the Related Art Conventionally, a crusher for crushing rock at a quarry site with blasting material such as dynamite to form a large number of crushed stones and further crushing the crushed material such as concrete lumps has been used. However, to use such a crusher at the quarry site as it is, when the natural ore is large, use a breaker to make the crusher usable so that the crushed mass can be used. After crushing to some extent, it is crushed by a crusher.

[0003]

As described above, natural ore is usually very large, and in this state, a crushing machine for concrete lumps of a building which is generally used, a fixed crushing jaw and a movable crushing jaw. Because the natural ore cannot be sandwiched between large ores, the natural ore is roughly divided by a breaker, and then the ore block that has been divided by the crusher is crushed. A breaker must also be provided.

As described above, in order to use the crusher and the breaker, it is necessary to prepare a work vehicle corresponding to each of the crushers and the breaker. At the end of the boom, new work such as replacing and mounting a crusher and a breaker according to the work is newly added, resulting in disadvantages such as poor work efficiency and long working time. there were.

[0005]

The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that the present invention provides a fixed jaw main body formed at a lower portion of a crusher outer casing, and a crusher outer casing. A movable jaw body that opens and closes on a fixed jaw body with a cylinder rotatably mounted via a cylinder pivot section is provided in the outer casing of the crusher, and the movable jaw body pivot section of the movable jaw body is a cylinder pivot section. And the fixed jaw main body is located at a central position between the lower end of the base of the crusher outer casing and the base position of the fixed jaw main body on an extension of a line connecting the movable jaw main body pivot portion and the cylinder pivot portion. A crushing machine in which the movable jaw body and the fixed jaw body can sufficiently hold a large crushed object in a state where the lower end portion is close and the movable jaw body is maximally opened with respect to the fixed jaw body. Large ore can be crushed at once, Resolve those were.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. As shown in FIGS.
The outer housing 1 of the crushing machine is formed in a housing shape, a fixed jaw main body 2 is formed at a lower portion thereof, and a movable jaw main body 3 is provided on a vertical surface of the fixed jaw main body 2 so as to be openable and closable. Reference numeral 3 denotes a movable cylinder 4 mounted in the outer casing 1 of the crusher.

The movable jaw main body 3 comprises a crushing jaw 3a and a crushing rotation base 3b. The crushing jaw 3a has a substantially rectangular cross section, and has a hollow interior as shown in FIG. The crushing rotation base 3b is pivotally supported in the crusher outer casing 1 by a rotation shaft, and is provided so that the crushing jaw 3a can swing.

The movable jaw main body 3 and the fixed jaw main body 2 have such an interval that the large crushed object R can be sufficiently held.

In the cylinder 4, a cylinder rotation base 4b provided on a cylinder cylinder 4a is pivotally supported by the crusher outer casing 1, and the cylinder 4 is moved vertically within the crusher outer casing 1 within the crusher outer casing 1. It can swing freely in any direction.

The tip of a piston rod 4c of the cylinder 4 is supported by a pin p at the tip of a crushing jaw 3a of the movable jaw main body 3, and the piston rod 4c is moved by the hydraulic oil in and out of the cylinder 4. The movable jaw body 3 is expanded and contracted from the cylindrical body 4a to open and close on the fixed jaw body 2 centered on the crushing rotation base 3b.

The crush rotation base 3b of the movable jaw main body 3 is
As described above, the pivot point between the movable jaw main body 3 and the crusher outer casing 1 exists in the crusher outer casing 1, and
3, and the pivot point between the cylinder 4 and the outer casing 1 of the crusher is referred to as a cylinder pivot portion P4. The movable jaw body pivot P3 is located between the cylinder pivot P4 and the fixed jaw body 2. More specifically, the position of the movable jaw main body pivot P3 is determined by the cylinder pivot P4 and the fixed jaw main body 2
It is located at about the center of the line connecting the crusher outer casing 1 and the base position lower end 2a. The base position lower end portion 2a is located close to an extension of a line L connecting the movable jaw body pivot P3 and the cylinder pivot P4 (see FIG. 3). In addition, the fact that the base position lower end portion 2a exists on the extension of the line L also includes that the above-described base position lower end portion 2a exists close to the extension of the line L.

The cylinder output is (W), and the distance between the movable jaw body pivot P3 and the intersection Pc perpendicular to the output direction of the cylinder output W from the movable jaw body pivot P3 is (X). Assuming that the crushing force is (F) and the distance from the movable jaw main body pivotal support P3 to the vertically divided large blade 5 is (Y), the crushing force F is expressed by the following equation.

F = W × X ÷ Y

As shown in FIG. 3, the distance X varies depending on the open / close state of the movable jaw main body 3. When the movable jaw main body 3 is fully opened, the distance X becomes maximum.
In the closed state, the distance X also becomes minimum.

Here, from the above equation, the movable jaw main body pivot P
It is clear that the crushing force (F) can be increased by setting the distance (Y) from 3 to the vertically divided large blade 5 to a small value.

Therefore, the movable jaw main body pivotal support portion P3 of the movable jaw main body 3 is provided at the base of the crusher outer casing 1 and the fixed jaw main body 2 as in the conventional crusher. When crushing R, as shown in the imaginary line part (the part shown by the two-dot chain line) in FIG.
In the case 3, the distance between the movable jaw body pivotal support PO3 corresponding to the conventional movable jaw body O3 and the cutting edge must be formed long so that the large crushed object R can be added.

When the conventional movable jaw main body O3 having such a large size is used, as can be seen from the above-described equation for calculating the crushing force F, the vertically split large blade 5 and the movable jaw main body pivotal support PO3 are connected. The distance YO is increased, and therefore the crushing force F is reduced.

The distance between the cylinder pivot P4 of the present invention and the movable jaw main body P3 is equal to the distance between the conventional cylinder pivot P0 and the movable jaw main pivot P0.

Therefore, in the conventional type, the distance YO between the movable jaw main body pivotal support PO3 and the vertically split large blade O5 is determined.
Is considerably larger than the distance Y in the present invention, so that the movable jaw body 3 of the present invention is
The crushing force F can be larger than that of No. 3 (see FIG. 6).

The fixed jaw main body 2 and the movable jaw main body pivoting portion P3 of the movable jaw main body 3 have a large space via the outer casing 1 of the crusher. When the main body 3 is opened to the maximum, the respective distal end portions of the fixed jaw main body 2 and the movable jaw main body 3 have a large diameter, and as shown in FIG. The conventional movable jaw body O3 shown by the dotted line
It is configured to be able to sandwich an extremely large object R to be crushed.

The movable jaw main body 3 is formed with a vertically divided large blade 5 in the form of a half abacus ball, and the fixed jaw main body 2 is provided with an auxiliary crushing body 6. Body 6
Is detachable from the fixed jaw main body 2 and is replaceable in use.

[0022]

According to the present invention, the fixed jaw main body 2 is formed at the lower portion of the crusher outer casing 1, and the cylinder 4 is rotatably mounted in the crusher outer casing 1 via the cylinder pivot P4. A movable jaw body 3 that opens and closes on the fixed jaw body 2 is provided in the outer casing 1 of the crusher. The movable jaw body pivot P3 of the movable jaw body 3 is connected to the cylinder pivot P4 and the outside of the crusher of the fixed jaw body 2. The movable jaw main body pivoting portion P3 and the cylinder pivoting portion P are located approximately at the center between the base position and the lower end portion 2a of the housing 1 and the base portion.
The lower end 2a of the base position is close to the extension of the line L connecting the movable jaw 4 with the movable jaw main body 3 and the fixed jaw main body 2 in a state where the movable jaw main body 3 is maximally opened with respect to the fixed jaw main body 2. However, by using a crusher capable of sufficiently holding a large crushed object R, firstly, the large crushed object R can be crushed at one time, and secondly, the structure is simple. It produces various effects.

The above effect will be described in detail. A cylinder 4 is rotatably mounted in an outer casing 1 of the crusher, a center of the rotation is a cylinder pivot P4, and a movable jaw which opens and closes on the fixed jaw main body 2. The main body 3 is provided on the crusher outer casing 1 so as to be openable and closable, and a pivot point between the movable jaw main body 3 and the crusher outer casing 1 is a movable jaw main body pivot P3, and the movable jaw main pivot P3 is a cylinder pivot. Since the distance between P4 and the fixed jaw main body 2 is substantially intermediate, and the distance between the movable jaw main body pivotal support portion P3 and the base of the fixed jaw main body 2 is increased, the movable jaw main body 3 is positioned from above the fixed jaw main body 2. Since the movable jaw main body pivotal support portion P3 is far away from the root of the fixed jaw main body 2 and the crusher outer casing 1, the movable jaw main body 3 is positioned with respect to the fixed jaw main body 2 in FIG. As shown in Fig. 3, extremely large crushing when opened to the maximum Can sandwich the R, as shown in FIG. 5, it is possible to crush the crush material R.

Further, as shown in FIG. 5, the movable jaw main body pivoting portion P3 is located at an intermediate point between the cylinder pivoting portion P4 and the fixed jaw main body 2, so that the movable jaw main body 3 and the fixed jaw main body 2 can be connected to each other. When the large crushed object R is crushed, the movable jaw body 3
The contact angle between the movable jaw body 3 and the fixed jaw body 2 can be prevented from being pushed out from the movable jaw main body 3 and the fixed jaw main body 2 as shown in FIG. Can be.

In contrast, in the present invention, the movable jaw main body 3
Has the same size as the conventional one, but can have a large diameter, and the distance Y between the vertically split large blade 5 and the movable jaw main body pivotal support portion P3 has not changed. Can be. As described above, a large ore, which is a large crushed object R, can be crushed substantially at once by the fixed jaw main body 2 and the movable jaw main body 3 of the crusher of the present invention.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a longitudinal side view of the present invention.

FIG. 3 is an operation diagram when crushing an object to be crushed by a movable jaw main body and a fixed jaw main body.

FIG. 4 is a schematic diagram comparing the position of a movable jaw body in the present invention with the position of a conventional movable jaw body.

FIG. 5 is a schematic view showing a state in which a large crushed object is crushed by the crusher of the present invention.

FIG. 6 is a schematic view comparing the position of the movable jaw main body and the movable jaw main body having a large size in the present invention.

FIG. 7 is a schematic view showing a state in which a crushed object is crushed by a conventional type crusher.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Crusher outer housing 2 ... Fixed jaw main body 2a ... Base position lower end part 4 ... Cylinder 3 ... Movable jaw main body P3 ... Movable jaw main body pivoting part R ... Crushed object L ... Line

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Osamu Fujitaka 314 Chigusa-cho, Hanamigawa-ku, Chiba Co., Ltd. Inside the Sakado Corporation (72) Inventor Tadashi Nagase 314 Chigusa-cho, Hanamigawa-ku, Chiba-shi Sakado Corporation In-house (72) Inventor Toshiyuki Kuno 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works (72) Inventor Masayuki Otsuka 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi In the Sakado Works, Inc. (72) Inventor Takamitsu Ito 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works (72) Inventor Yoichiro Kuwahara 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Inside the Sakado Works (72) Inventor Masayuki Asai 314 Chikusa-cho, Hanamigawa-ku, Chiba-shi Address: Inside Sakado Works, Ltd. (56) Reference: Japanese Utility Model 1984-44 (JP, U) Japanese Utility Model 3-46660 (JP, U) Japanese Utility Model 3-1 5612 (JP, Y2) (58) Field surveyed (Int. Cl. ⁶ , DB name) E04G 23/08

Claims (1)

(57) [Claims] 1. A movable jaw body having a fixed jaw body formed at a lower portion of an outer housing of a crusher, and a movable jaw body that is opened and closed by a cylinder rotatably mounted via a cylinder pivot in the outer housing of the crusher. Is provided in the outer casing of the crusher, and the movable jaw body of the movable jaw body is provided.
The body pivot is a cylinder pivot and a crusher for the fixed jaw body.
Approximately at the center between the base and the lower end of the outer casing
And connects the movable jaw main body pivot portion and the cylinder pivot portion.
The lower end of the root position is close to the extension of the
The movable jaw body can be opened to the maximum with respect to the fixed jaw body
The moving jaw main body and the fixed jaw main body sufficiently hold large crushed materials.
A crusher characterized in that it can be used.