JP2001162185A - Spherical surface sealing device of inertial cone crusher - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize the spherical surface sealing device of a durable inertial cone crusher. SOLUTION: This device is provided with a shell 4, a spherical seat support 2, a spherical seat 7, a conehead 15, a mantle 16 and a conecave 6, and the conehead 15 is eccentrically rotated on the seat 7 to crush a raw ore between the mantle 16 and conecave 6 in the inertial cone crusher. In this case, a metallic spherical surface sealing member 20 consisting of a part of the hollow spherical body having the center of curvature in common with the seat 7 furnished to the support 2 is provided, the inner periphery of the sealing member 20 is brought into contact with the outer periphery of the cylindrical part of the support 2 airtightly and slidably, and a sealing member supporting means for supporting the sealing member 20 airtightly and slidably is provided below the conehead 15 to constitute the device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a spherical sealing device for an inertial cone crusher. Specifically, in an inertial cone crusher that crushes a stone material by a cone cave and a mantle attached to a conical head that rotates eccentrically with respect to the cone cave, the cone head and the cone head are rotatable and swingable. The present invention relates to a spherical sealing device of an inertial conical crusher for preventing dust from intruding between a bearing and a spherical seat.

[0002]

2. Description of the Related Art A conventional inertial cone crusher will be described with reference to FIG. This is provided with a substantially cylindrical shell 4 having a material inlet 1 at an upper part, a spherical seat support 2 at an intermediate part, and a bearing part 3 at a lower part supported by an anti-vibration rubber 5, A cone cave 6 having an inverted conical surface is attached to the lower part of the material inlet 1 of the shell 4, a spherical seat 7 is attached to the spherical seat support 2, and a motor 8 A drive shaft 11 driven via a belt 9 and a pulley 10 is supported.

[0003] One end of a spindle shaft 12 capable of transmitting rotation and swinging is supported on the drive shaft 11, and the other end of the spindle shaft 12 is connected to the main shaft 13 so as to transmit rotation and swingably. Have been. An unbalance unit 14 is attached to the lower part of the main shaft 13, a conical head 15 supported by the spherical seat 7 is attached to the upper part, and a mantle 16 is attached to the upper surface of the conical head 15 so as to face the cone cable 6. ing. The conical head 15 can rotate on the spherical seat 7 and can swing along the spherical surface. Reference numeral 17 denotes a dust seal provided on the spherical seat support 2 so as to seal between the conical head 15 and the spherical seat support 2.

The operation of the conventional inertial conical crusher constructed as described above will be described with reference to FIG. First, in the state shown in FIG. 4A, at the left end of the crushing chamber formed by the cone cave 6 and the mantle 16, the mantle 16 is rotated by the centrifugal force generated by the rotation of the unbalance unit 14 so that the gap with the cone cave 6 approaches 0 mm. The raw stone 19 is crushed to move, and the crushing chamber is vibrating at the right end, so that the raw stone fill state becomes a high density state.

Next, when the mantle 16 rolls and reaches the state shown in FIG. 2B, the product obtained by compression and crushing is quickly discharged at the left end of the crushing chamber by gravity and vibration. More mantle 1
When the roller 6 rolls, as shown in FIG. 3C, the crushing chamber is filled with the ore at the left end, and at the right end the gap between the mantle 16 and the cone cave 6 is reduced to 0 at the right end.
Since the mantle 16 rolls so as to approach mm, there is no escape for the particles, and the particles are crushed by each other, and complete interparticle crushing is performed.

[0006]

In the conventional inertial conical crusher, oil is supplied to the spherical seat 7 in order to prevent seizure between the spherical seat 7 and the conical head 15. A dust intrusion prevention means is provided to prevent the dust of the crushed product from entering. As shown in FIG. 6, the dust intrusion preventing means includes a ring-shaped projection 15a formed of a part of a sphere sharing the center of spherical curvature of the spherical seat 7 attached to the spherical seat support 2, and a lower part of the conical head 15. Provided in
A rubber-made ring-shaped dust seal 17 that comes into contact with the projection 15a is attached to the spherical seat support 2.

In the above-mentioned means for preventing dust from entering in the inertial cone crusher, the durability of the dust seal 17 is poor because the material of the dust seal 17 is rubber. If there is a large amount of mud or water in the crushed product, the rolling motion of the mantle 16 attached to the conical head 15 becomes unstable, and the dust seal 1 is sealed by the elastic force of rubber.
7 cannot follow the unstable movement of the conical head 15, and its sealing effect is reduced.

Since the contact area between the conical head 15 and the dust seal 17 is small, the contact surface of the conical head 15 with the dust seal 17 is greatly worn. The dust seal is liable to crack due to unstable movement of the conical head 15. And so on.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional problems, the present invention relates to an inertial cone crusher for crushing a stone material by a cone cave and a mantle mounted on a conical head which rotates eccentrically with respect to the cone cave. It is an object of the present invention to realize a durable spherical seal device for an inertial conical crusher, which can prevent dust from entering between a spherical seat that rotatably and swingably supports the conical head. .

[0010]

According to the present invention, a spherical sealing device for an inertial conical crusher according to the present invention includes a shell, a spherical seat support provided on the shell, and a spherical seat support attached to the shell. A spherical seat 7, a conical head 15 supported by the spherical seat 7 and driven to rotate eccentrically, a mantle 16 mounted on the conical head 15, and mounted on the shell 4 in opposition to the mantle 16; An inertial conical crusher for crushing rough stones between the mantle 16 and the cone cave 6 by rotatively driving the conical head 15 eccentrically on the spherical seat 7. A metal spherical seal member 20 is provided which is a part of a hollow sphere sharing the center of curvature of the spherical surface of the spherical seat 7 attached to the body 2, and the inner periphery of the spherical seal member 20 is formed by the cylinder of the spherical seat support 2. And slidably contacting hermetically on the outer periphery, the bottom of the conical head 15, characterized in that a sealing member support means for and slidably supports hermetically the spherical sealing member 20.

In addition to the above, the seal member supporting means is mounted on the seal support member mounting portion 15b provided below the conical head 15, and is mounted on the seal support member mounting portion, so that the spherical seal member 20 can slide. And a seal support member 21 that supports the seal member.

[0012] By adopting this configuration, since the spherical sealing member is made of metal, a sealing device having higher durability than a conventional rubber seal can be obtained.

[0013]

1 and 2 are views for explaining an embodiment of a spherical sealing device of an inertial conical crusher of the present invention, and FIG. 1 is an inertial using a spherical sealing device of the present invention. FIG. 2 is an enlarged view of a portion A in FIG. 1.

In FIG. 1, reference numeral 4 denotes a substantially cylindrical shell supported by an anti-vibration rubber 5. The shell 4 has a material inlet 1 at an upper part, a spherical seat support 2 at an intermediate part, and a lower part at a lower part. Bearing portions 3 are provided, respectively. In the lower part of the material inlet 1, an inverted conical cone cable 6 is provided.
A spherical seat 7 is provided on the shaft, and the drive shaft 1 is rotatably mounted on the bearing 3.
1 are attached.

The drive shaft 11 is connected to one end of a spindle shaft 12 capable of transmitting rotation and swinging.
The other end of the spindle shaft 12 is connected to a rotatable and swingable main shaft 13. An unbalance unit 14 is attached to the lower part of the main shaft 13, and the conical head 1 is attached to the upper part.
5 and mantle 16 are mounted.

The conical head 15 and the mantle 16
Is rotationally driven by a spindle 8 and a main shaft 13 which are rotationally driven from a motor 8 via a V-belt 9 and a pulley 10. At this time, since the unbalance unit 14 rotates together with the main shaft 13 to generate centrifugal force and tilt the main shaft, the conical head 15 and the mantle 16 make a traversing movement on the spherical seat 7, and the mantle 16 moves between the cone cave 6 and the rough stone. Can be crushed.

The contact surface between the conical head 15 and the spherical seat 7 is lubricated by lubricating means (not shown). The configuration described above is the same as that of the conventional example described with reference to FIG. 3, and the feature of the present invention is that the intrusion of dust to the contact surface between the conical head 15 and the spherical seat 7 is reliably prevented and the spherical surface has a durability. That is, a sealing device is provided.

FIG. 2 is an enlarged view of part A of FIG. As shown in the figure, the spherical seal device includes a metallic spherical seal member 20 and a seal member supporting means provided on the conical head 15. And the spherical sealing member 20
The spherical seat 7 has a ring shape composed of a part of a hollow sphere having a predetermined thickness and sharing the center of curvature of the spherical surface. I can do it.

The seal member support means includes a seal support member mounting portion 15b provided at a lower portion of the outer periphery of the conical head 15.
And a seal supporting member 21 attached to the seal supporting member attaching portion 15b. The surfaces of the seal support member mounting portion 15b and the seal support member 21 that are in contact with the spherical seal member 20 each have the same spherical surface as the spherical seal member 20. Then, the seal support member mounting portion 15
When the spherical seal member 20 is sandwiched between the seal member b and the seal support member 21, there is a slight gap in the upper portion, and a space on the outer periphery that allows movement in all circumferential directions.

The operation of the embodiment constructed as described above will be described with reference to FIG. When the conical head 15 is driven to rotate the spindle shaft 12 and the main shaft 13 by the motor, a centrifugal force is generated in the unbalance unit 14 attached to the main shaft 13 and acts to tilt the main shaft 13. As a result, the conical head 15 rotates while eccentrically sliding on the spherical seat 7, so that the gap between the mantle 16 and the cone cave 6 can be made close to 0 to break the rough.

At this time, even if the conical head 15 is inclined and rotated as shown in FIG. 3, the spherical seal member 20 maintains the state in which the inner diameter is in contact with the spherical seat support 2, and the spherical seal member 20 is rotated. Since the supporting member 15b and the supporting member 21 share the same center of curvature of the spherical surface together with the spherical sealing member 20, a complete sealing action can be performed.

[0022]

According to the spherical sealing device of the inertial conical crusher of the present invention, the sealing member is made of a metal ring which forms a part of a hollow sphere having the same center as the center of the spherical curvature of the spherical seat, Even when the conical head is inclined, even when the conical head is inclined, the inner periphery is air-tightly and slidably contacted with the outer periphery of the cylindrical portion of the spherical seat support, and the outer peripheral portion is air-tightly and slidably supported on the lower portion of the conical head. Sealing is possible following this, and the durability is high because the sealing member is made of metal.

[Brief description of the drawings]

FIG. 1 is a sectional view showing an inertial conical crusher to which a spherical sealing device according to an embodiment of the present invention is applied.

FIG. 2 is an enlarged sectional view of a portion A in FIG.

FIG. 3 is a diagram for explaining the operation of the spherical sealing device according to the embodiment of the present invention.

FIG. 4 is a sectional view showing a conventional inertial cone crusher.

FIG. 5 is a diagram for explaining the operation of a conventional inertial cone crusher.

FIG. 6 is an enlarged sectional view of a main part of FIG.

[Description of Signs] 1 Material input port 2 Spherical seat support 3 Bearing part 4 Shell 5 Anti-vibration rubber 6 Cone cave 7 Spherical seat 8 Motor 9 V-belt 10 Pulley 11 Drive shaft 12 ... Spindle shaft 13 ... Main shaft 14 ... Unbalance unit 15 ... Conical head 15b ... Seal support member mounting part 16 ... Mantle 19 ... Rough stone 20 ... Spherical seal member 21 ... Seal support member

Claims (2)

[Claims] 1. A shell (4), a spherical seat support (2) provided on the shell (4), a spherical seat (7) mounted on the spherical seat support (2), and the spherical surface. Conical head (15) supported on seat (7) and driven to rotate eccentrically
And a mantle (1) attached to the conical head (15).
6) and a cone cable (6) attached to the shell (4) opposite to the mantle (16), wherein the conical head (15) is rotationally driven while being eccentric on the spherical seat (7). Thereby, in the inertial cone crusher for crushing the rough between the mantle (16) and the cone cave (6), the center of spherical curvature of the spherical seat (7) attached to the spherical seat support (2) is shared. A metallic spherical seal member (20) comprising a part of a hollow sphere to be formed, and the inner periphery of the spherical seal member (20) can be hermetically and slidably moved on the outer periphery of the cylindrical portion of the spherical seat support (2). A seal member supporting means for airtightly and slidably supporting the spherical seal member (20) at a lower portion of the conical head (15). apparatus. 2. The seal member support means includes a seal support member mounting portion (15) provided below the conical head (15).
2. An inertial cone crusher according to claim 1, further comprising: b) and a seal support member (21) mounted on said seal support member mounting portion and slidably supporting said spherical seal member (20). Spherical sealing device.