JPH06404A - Crusher - Google Patents

Abstract

(57) [Abstract] [Purpose] A motor is connected to each of an arbitrary number of drive wheels, and the shell main body can be appropriately rotated in an arbitrary rotation direction by rollingly contacting the drive wheels to thereby rotate the device. The compactness and the installation space are reduced, the maintenance is improved, the energy saving effect is improved, the noise is reduced, the crushing performance is improved, and the durability is improved. [Structure] The rough stones supplied from the hopper A through the shoe A1 and the stone feeding device B into the cylindrical body 1 of the shell body C are three pairs of drive wheels 3a1 to 3c1, 3a2 to 3c2 and the motor 4a.
In the shell body C which rotates through the pair of outer ring bodies 2 by the operation of the drive unit D composed of 1 to 4c1, 4a2 to 4c2 and the like, the rod housed in the shell body and the liner 11 on the inner circumference are provided. , 12 and was crushed between 12 and 12, and the water was supplied into the shell main body together with the water.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ore such as limestone or feldspar which is a raw material for cement, glass or the like between grinding media made of steel rods or steel balls loaded in a shell body. Is mixed and crushed by the rotation of the shell main body. A motor is connected to each of an arbitrary number of drive wheels, and the shell main body can be appropriately rotated in any direction by rolling contact with the drive wheels. Accordingly, the present invention relates to a crushing device in which the device is made compact, noise is reduced, crushing performance is improved, and durability is improved.

[0002]

2. Description of the Related Art Among conventional crushers, in a ball mill such as a tube mill or a conical mill, a large gear provided on the outer periphery of a shell body and a small gear rotated by a motor are meshed with each other. , The shell body is rotated, and a raw material such as ore mixed between the grinding media is crushed by a grinding medium such as a steel ball charged in the shell body. The tooth meshing and the impact of crushing in the shell cause a considerable amount of noise, which causes a problem. Further, in a rod mill, a chain gear is provided on the outer periphery of the shell body, a chain is hung on the chain gear, the shell body is rotationally driven by a motor, and wear inside the shell body is prevented. The inner circumference of the shell is lined, and a large number of rods are internally mounted for driving. However, noise in the transmission system of the rotational power becomes considerably large, and further, the lining or the like is caused by the impact of the rod on the shell body. It easily vibrates and loosens, causing abnormal wear and causing problems. In order to deal with the above problems, the shell main body is mounted on any number of tires having cushioning property, and the rotational speed variation of each tire due to the variation of the center of gravity of the shell main body due to the collision of the rod, A differential device is provided on each of a plurality of rolling shaft bodies provided with tires, and a drive device such as an electric motor or a hydraulic motor is separately connected to each of the differential devices to drive the shell body. One drive device drives all drive wheels having cushioning properties through a plurality of pairs of differential gears to prevent slipping due to variation of the center of gravity of the shell body, and further to transmit rotational power. There are some that reduce noise in the system, but since each requires multiple differential devices, the installation space is large,
The cost is also high, causing problems.

[0003]

Therefore, the present invention has been made in order to eliminate the above-mentioned conventional drawbacks, in which the shell main body is mounted on a drive wheel having an arbitrary number of cushioning properties, Also, a motor is connected to the drive wheel so that the motor can be rotated independently and separately, and the shell body can be appropriately rotated in any direction by rolling contact with the drive wheel, thereby making the device compact and compact. The objective is to reduce the installation area, reduce noise, improve crushing performance, and improve durability.

[0004]

Therefore, the present invention firstly mounts a shell body of an arbitrary hollow shape on an arbitrary number of drive wheels, and connects a motor to each drive wheel. By making the shell body rotatable by rolling contact with the drive wheel. Secondly, the rolling contact portion of the drive wheel with the shell body is formed with cushioning properties. Thirdly, the motor is provided with a reduction gear unit. Fourthly, the present invention is intended to achieve the above object by including a motor control device including a forward / reverse rotation switching device for the motor and a speed control device.

[0005]

According to the present invention, a shell body having an arbitrary hollow shape is mounted on any number of driving wheels, and a motor is connected to each driving wheel so that the driving wheels can rotate. By making contact with the shell body so that the shell body can rotate, the center of gravity of the shell body fluctuates with the collision of a grinding medium such as a rod in the shell body, and the rotation speed of the drive wheels changes. Since it can be handled smoothly, a differential device or the like is not required and the device can be made compact. Also,
By forming the rolling contact portion of the drive wheel with the shell body with cushioning properties, it is possible to reduce noise generation. Further, by providing the reduction gear device to an arbitrary number of motors, the number of rotations of the motor can be increased, so that the motor can be downsized and the installation space can be reduced. Further, by providing a motor control device including a normal / reverse rotation switching device and a rotation speed control device for an arbitrary number of motors, and allowing the shell body to rotate appropriately in any direction, the rod inside the shell body can be rotated. Since it is possible to appropriately change the collision position or the dropping position of the crushing medium such as, it is possible to reduce wear on the inner circumference of the shell body to improve durability and enhance the crushing function.

[0006]

EXAMPLES In order to further clarify the gist of the crushing apparatus of the present invention, one example of the rod mill of the crushing apparatus will be described below with reference to FIGS. 1 and 2.
First, R is a rod mill according to the present invention,
A hopper-A that supplies rough stones such as feldspar, a stone-feeding device B that is connected via a shunt A1 to feed the rough stones quantitatively from the hopper-A, and a stone-feeding device B that supplies the stones. A shell main body C for crushing rough stones, a drive unit D for rotationally driving the shell main body C, a sorting device E for sorting the crushed stones and the like in the shell main body C according to the particle size thereof, It is constituted by a base F on which is mounted. further,
The shell body C includes a side wall having a supply port (not shown) and a side wall having a discharge port (not shown), and has a cylindrical shape with a conical shape having a larger diameter than the discharge port side on the supply port side, and the cylindrical body. It is composed of a pair of outer ring bodies 2 arranged on the outer periphery of 1 to transfer the power of the drive section D. An arbitrary number of liners 11 are fixed to the inner periphery of the cylindrical body 1, Further, an arbitrary number of liners 12 are fixedly affixed on the liner 11 at appropriate intervals. The drive unit D includes three pairs of drive wheels 3a1, 3a2, 3b1, 3b2, 3c having a cushioning property such as a pneumatic rubber tire to be rollingly contacted with the pair of outer ring bodies 2.
1, 3c2 and a motor 4a1 for rotating each drive wheel
4a2, 4b1, 4b2, 4c1, 4c2, and reduction gear units 5a1 and 5a5 for reducing the rotational speeds of the respective motors.
a2, 5b1, 5b2, 5c1, 5c2, and a motor control device 6 including a forward / reverse rotation switching device and a rotation speed control device for each motor. Next, regarding the operation of this embodiment, first, from the hopper A to the shoot A
1. Raw stones and water are supplied into the cylindrical body 1 of the shell body C through the stone supplying device B. In addition, a predetermined number of rods are housed in advance in the cylindrical body 1, and the shell body C has a drive portion D.
Is rotated through the outer ring body 2 by the operation of the rod, so that the rough rock is repeatedly rolled and dropped in the shell main body C, and the rod and liner.
It is crushed between 11 and 12 and is discharged together with water onto the sorting device E from the outlet. By appropriately changing the rotation direction and the rotation speed of the shell body C, the collision of the rough stone and the rod with the liners 11 and 12 is averaged to reduce the wear of the liners 11 and 12 to reduce the wear of the shell body. It becomes possible to prolong the service life.

In this embodiment, the shell of the shell body has a conical shape. However, the shell body may have an arbitrary shape such as a cylindrical shape, and the motor control devices 6 are independently operated. However, the shape, size, material, operating method, etc. of each constituent element in the crushing device according to the present invention may be provided in a central control device for the entire device.
It is needless to say that the functions and the effects of the invention described below may be arbitrarily determined within the range in which the effects are achieved, and that these modifications do not change the gist of the present invention.

[0008]

As described in detail above, the present invention is
A shell body having an arbitrary hollow body shape is mounted on an arbitrary number of drive wheels, and a motor is connected to each of the drive wheels so as to be rotatable. By making it rotatable, a differential device or the like between the drive wheels becomes unnecessary, so the structure is simplified and the device is made compact,
The installation space can be reduced, the handling is easy and the maintenance is good, and the motors are arranged independently on each drive wheel, so that the power transmission efficiency is improved and the energy saving effect is improved. It becomes possible. Further, by providing a motor control device including a forward / reverse rotation switching device for any number of motors and a speed control device so that the shell body can be appropriately rotated in any direction, abrasion of the inner circumference of the shell body is achieved. It is possible to improve the crushing performance while improving the durability. Further, by forming the gear reducer on any number of motors, it is possible to downsize the motor and reduce the installation space.
Furthermore, by forming the rolling contact portion of the drive wheel with the shell body with cushioning properties, it is possible to reduce noise generation. As described above, the present invention is a practical and excellent invention that has a unique effect that has never been obtained.

[Brief description of drawings]

FIG. 1 is a front view of the present invention with a part thereof cut away.

FIG. 2 is a side view showing a main part of the present invention.

[Explanation of symbols]

 1 cylinder 2 outer ring 3a1 drive wheel 3a2 drive wheel 3b1 drive wheel 3b2 drive wheel 3c1 drive wheel 3c2 drive wheel 4a1 motor 4a2 motor 4b1 motor 4b2 motor 4c1 motor 4c2 motor 5a1 difference 5a1 Drive device 5a2 Differential device 5b1 Differential device 5b2 Differential device 5c1 Differential device 5c2 Differential device 6 Motor control device 11 Liner 12 Liner A Hopper A1 Shoot B Stone feed device C Shell body D Drive Division E Sorting device F Base R Rod mill

Front page continuation (72) Inventor Kyoichi Yahagi 1780 Kamitakano, Yachiyo-shi, Chiba Kawasaki Heavy Industries, Ltd. Yachiyo factory (72) Inventor Kenichi Hirosawa 1780, Kamitakano, Yachiyo, Chiba Kawasaki Heavy Industries, Ltd. Yachiyo factory

Claims (4)

[Claims] 1. An arbitrary hollow body-shaped shell main body is mounted on an arbitrary number of drive wheels, and a motor is connected to each of the drive wheels so as to be rotatable, and is in rolling contact with the drive wheels. The crushing device is characterized in that the shell body is rotatable. 2. The crushing apparatus according to claim 1, wherein the rolling contact portion of the drive wheel with the shell body is formed with cushioning properties. 3. The crushing device according to claim 1, wherein the motor is provided with a reduction gear device. 4. The crushing apparatus according to claim 1, further comprising a motor control device including a normal / reverse rotation switching device for the motor and a speed control device.