JP2003320309A - Vibration sieve apparatus with automatic grease feed mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vibration sieve apparatus with an automatic grease feed mechanism capable of automatically feeding a grease to the bearing of a vibration sieving machine body during operation without damaging a flexible hose. <P>SOLUTION: The vibration sieve apparatus has the vibration sieving machine body 15 continuously operated by attaching both ends of an eccentric rotor 11 becoming a vibration generation machine to a sieve body 12 through bearings 13 and 14, a drive motor 20 placed on an auxiliary stand 18 to transmit power to the eccentric rotor 11 through a universal joint 19, a fixing piping 26 having a joint 25 provided to the leading part thereof arranged from a distributor 24 of the grease to the vicinities of the bearings 13 and 14 of the vibration sieving machine body 15, a flexible hose 28 for connecting a joint 25 of the fixing piping 26 and the grease feed ports 64 of the bearings 13 and 14 and reinforced by a metal spring coil, and a control unit for operating a grease pump 22 at a preset time to feed the grease 23 automatically. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, an automatic greasing mechanism for automatically supplying grease to the bearings of a vibrating sieving machine main body in operation which is continuously operated in a sizing plant of an ore processing facility in an iron mill. It relates to a vibrating screen device.

[0002]

2. Description of the Related Art Conventionally, for example, a vibrating screener has been used in a sizing plant of an ore processing facility in a steel mill. The vibrating screener is continuously operated day and night, and is fully operated at a regular repair once or twice a month. Be stopped. At the time of this periodic repair, the operator uses a manual grease pump to provide a bearing (including an oil seal and spacing collar) provided on the eccentric rotor that is the source of vibration.
Is performing grease replenishment work. At present, most of the manufacturers of vibrating screeners are quarry operators, and in the quarry, the vibrating screeners are operated only in the daytime, and the inspection and greasing work of the vibrating screeners are always performed every morning. Considering that there is no need for automatic greasing to the vibrating screen machine in operation, no automatic greasing mechanism is provided. In addition, when considering the continuous operation of the vibrating screener day and night, the manufacturer provides a predetermined amount (for example, about 7.5 cc per bearing) every 8 hours operation (every 4 hours operation in a particularly dusty place). It is recommended to lubricate with grease.

[0003]

However, the conventional greasing method for the vibrating screener has the following problems to be solved. Since a large number of vibrating screens are used in the sieving factory, in order to meet the amount of grease lubrication recommended by the manufacturer, the time required for lubrication by the grease pump is extremely long during regular repairs (for example, 10
In the case of a vibrating screen sieving machine, about 120 man-hours are required per month), which requires a large number of workers. But,
In reality, the bearing, which is the greasing point, is vibrating (operating) and cannot be greased. When a normal flexible hose is used to lubricate the vibrating bearing, it is flexible due to the large vibration of the vibrating screener that occurs when the vibrating screener starts and stops and passes the natural frequency. There was a problem that the hose was damaged. In addition to damage to the flexible hose, problems such as greasing time and the number of workers, and insufficient greasing due to the grease pump may cause oil seal burnout or spacing collar baking, or
Oil (lubricating oil) in the bearing housing flows out due to burnout of the oil seal, causing damage and burning of the bearing, often resulting in facility shutdowns, which reduces the overall production capacity of the sizing plant and reduces the blast furnace. The operation (iron ore supply and demand balance) was greatly affected, and in the worst case, it could lead to blast furnace downwind.

The present invention has been made in view of such circumstances, and does not damage the flexible hose.
An object of the present invention is to provide a vibrating screen device with an automatic greasing mechanism that can automatically feed grease to the bearing of the vibrating screen machine main body in operation.

[0005]

According to another aspect of the present invention, there is provided a vibrating screen device with an automatic greasing mechanism, in which both ends of an eccentric rotor, which is a vibration source, are attached to a screen body through bearings and are continuous. It is sent by a grease pump and a drive motor that is placed on an auxiliary pedestal provided separately from the oscillating sieving machine main body to be operated and a supporting pedestal of the oscillating sieving machine main body, and power is transmitted through an eccentric rotor and a universal joint The grease distributor is connected from the distributor to the vicinity of the bearing of the vibration sieving machine main body, and the fixed pipe having a joint at the tip, the joint of the fixed pipe and the greasing port of the bearing are connected, and the entire length is metal. It has a flexible hose reinforced by a spring coil made of steel and a control device that operates a grease pump at a preset time to automatically send grease from a distributor to a bearing.
As a result, since the flexible hose is reinforced by the metal spring coil, it is not damaged by large vibration of the sieve body at the time of starting and stopping, and at the time preset by the control device. Grease can be automatically sent from the distributor to the bearings, and insufficient lubrication can be prevented.

In the vibrating screen device with an automatic greasing mechanism according to the present invention, the grease pump can be operated three or more times a day. As a result, it is possible to reliably prevent insufficient lubrication of grease to the bearing. In the vibrating screen device with the automatic greasing mechanism according to the present invention, the grease can be sent to the bearings of the plurality of vibrating screen machine bodies by the grease pump.
As a result, the automatic greasing unit and the main pipe can be shared.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Next, referring to the attached drawings, an embodiment in which the present invention is embodied will be described to provide an understanding of the present invention. FIG. 1 is a block diagram of a vibrating screen device with an automatic greasing mechanism according to an embodiment of the present invention.
4A is a front view of a vibrating screen body of the vibrating screen device with the automatic greasing mechanism, FIG. 3 is a side view of the vibrating screen device body of the vibrating screen device with the automatic greasing mechanism, and FIGS. 5A and 5B are respectively a drive-side sectional view and a driven-side plan sectional view of an eccentric rotor of a vibrating sieving machine main body of the oscillating sieving apparatus having the automatic greasing mechanism, and FIG. 5 is an enlarged view of a portion A in FIG.

As shown in FIGS. 1 to 5, in a vibrating screen device 10 with an automatic greasing mechanism according to an embodiment of the present invention, both ends of an eccentric rotor 11 which is a vibration source are supported by a screen body 12. Vibratory sieving machine main body 15 which is attached via 13, 14 and continuously operates, and supporting stands 16 and 17 of the vibrating sieving machine main body 15.
(16a, 17a) is mounted on an auxiliary mount 18 provided separately, and includes an eccentric rotor 11 and a drive motor 20 for transmitting power via a universal joint 19.

The vibrating screen device 10 with the automatic greasing mechanism also includes main pipes 67 and 68 and branch pipes 69 and 7 which are alternately switched by the grease pump 22 of the automatic greasing unit 21.
0 and the like, a large number of distributors 24 for distributing the amount of grease 23 to be sent from each distributor 24.
And the fixed pipe 26 having a greasing block 25, which is an example of a joint, at the tip thereof. Furthermore, a vibrating screen device 10 with an automatic greasing mechanism
Is a greasing port 6 of the seal plate 56 provided in the sieve body 12.
4, a greasing block 66 (substantially the same as the greasing port of the bearing 13 (14 is the same)) and a greasing block 2 as an example of a joint provided at the upstream end of the fixed pipe 65.
5 is connected to the flexible hose 28 whose entire length is reinforced by a spring coil (not shown) made of metal, and the grease pump 22 is operated at a preset time to distribute the grease 23 from the distributor 24 to the bearing 13. And a control device (not shown) for automatically sending. These will be described in detail below.

As shown in FIGS. 2 and 3, the vibrating screener main body 15 includes four supporting frames 16, 17, 16a and 17a.
And a support spring set 29 mounted on the support bases 16, 17, 16a, 17a via spring seats 29a, respectively,
Mounting brackets 30, 31 (30a, 31) mounted on the support spring set 29 and provided between the support spring set 29 and the sieve body 12
a) and a sieve body 12. Each support spring set 29 is configured by arranging two coil springs having different specifications inside and outside along the longitudinal direction. The support spring set 29, the spring seat 29a, and the mounting brackets 30, 3
1 (30a, 31a) is pin-joined rotatably in the orthogonal direction so that it can follow the movement of the sieve main body 12 during vibration.

As shown in FIGS. 2, 3 and 5, the eccentric rotor 11 is mounted on the auxiliary mount 18 via the mounting base 32.
Is provided with a drive motor 20 and a belt pulley 33 is fixed to an output shaft 20a of the drive motor 20. An endless belt 34 is wound around the belt pulley 33, and the endless belt 34 is rotatably supported by bearings 36 and 37 arranged at a predetermined interval on a mounting base 35 provided on the auxiliary mount 18. It is wound around a belt pulley 39 attached to the outer shaft end of the rotary shaft 38.

An inner shaft end portion of the rotary shaft 38 has a shaft coupling 40.
Is connected to one end of the universal joint 19 via a flange, and the other end of the universal joint 19 is connected to one end of the eccentric rotor 11 via a shaft joint 41. FIG. 4 (A),
As shown in (B), bearings 13 and 14 are provided on both sides of the axially intermediate position of the eccentric rotor 11 fixed to the shaft coupling 41.
The bearings 13 and 14 are provided with bearing housings 45 and 46, which face and engage housing receivers 43 and 44, which are provided at both ends of a pipe spacer 42, which is horizontally arranged inside the sieve body 12. It is stored in. The housing receivers 43 and 44 are fixed inside the sieve body 12, and the bearing housings 45 and 46 can be removed from the housing receivers 43 and 44 by bolts 47 and nuts 48, respectively.

As shown in FIGS. 4 (A) and 4 (B), plate-shaped eccentric weights 4 are provided at both axial end portions of the eccentric rotor 11.
9 and 50 are provided, and the eccentric weights 49 and 50 are a spacer 51, a holding plate 52, and a fixing bolt 5, respectively.
3, it is detachably attached to the eccentric rotor body.
Between the eccentric weights 49 and 50 and the bearings 13 and 14,
Spacing collars 54 and 55 that press the inner rings of the bearings 13 and 14 axially inward on the outside, and bearings 13 and 14 on the inside
Sealing plates 56 and 57, which press the outer ring of 14 inward in the axial direction and are mounted in a sealed state with the spacing collars 54 and 55, are detachably provided on the bearing housings 45 and 46 by the mounting bolts 27. Oil seals 58 and 59 are provided on the outer peripheral surfaces of the spacing collars 54 and 55 on the inner side in the axial direction and on the inner peripheral portions of the seal plates 56 and 57 on the inner side in the radial direction.

As shown in FIGS. 4 (A) and 4 (B), the bearing housings 45 and 46 are provided with passages 62 to which lubricating oil 61 for lubricating the spherical rollers 60 of the bearings 13 and 14 is supplied. The amount of oil is such that about 1/3 of the plurality of spherical rollers 60 of the bearings 13 and 14 is constantly immersed in the pipe spacer 42. As shown in FIG. 4A, in order to prevent the lubricating oil 61 from leaking to the outside through the gap between the oil seal 58 and the spacing collar 54, the flow of the grease 23 for filling this gap with the grease 23. The passage 63 and the greasing port 64 connected to the passage 63 are formed in the seal plate 56.

In FIG. 4B, the seal plate 5
In FIG. 7, the flow passage of grease 23 and the greasing port connected to the flow passage are omitted, and in fact, the grease plate has the same structure as the seal plate 56, and it passes through the gap between the oil seal 59 and the spacing collar 55. The grease 23 is supplied so that the lubricating oil 61 does not leak outside. As shown in FIG. 1, the greasing port 64 of the seal plate 56 (57 is the same) is connected to a greasing block 66, and the sieve body 12
One end of a fixed pipe 65 arranged along the outer surface of the is connected. The greasing block 66 is a flexible hose 28.
Is connected to the greasing block 25 attached to the auxiliary mount 18.

On the other hand, as shown in FIG. 1, the grease pump 22 of the automatic greasing unit 21 causes a pair of main pipes 67 and 68 to be connected.
The grease 23 is sent to each distributor (distribution valve) 24 through the branch pipes 69 and 70 of the main pipes 67 and 68, and further supplied from the flexible hose 28 to the greasing port 64 of the seal plate 56. ing. The automatic greasing unit 21 is provided with a control device for operating the grease pump 22 at a preset time so that the grease 23 can be automatically fed from the distributor 24 to the bearings 13, 14. In addition, the number of the distribution devices 24 is the vibration sieving machine main body 1
It is a number that fills 10 cars of 5.

Reference numerals 71 and 72 in FIG. 1 denote Y-type strainers, reference numerals 73 and 74 denote two-way check valves, and reference numeral 75 denotes a sphere valve. Reference numeral 76 in FIG. 2 indicates a belt cover, and reference numeral 77 in FIG. 5 indicates a weight cover.
In addition, reference numeral 78 in FIG. 4A denotes an oil supply port formed in the bearing housing 45 and connected to a flow path 62 to which the lubricating oil 61 is supplied, and reference numeral 79 denotes a lubricating oil formed in a lower portion of the bearing housing 45. Reference numeral 80 represents a discharge port of 61, and reference numeral 80 represents a plug provided below the seal plate 56.

Next, the operation of the vibrating screen device 10 with the automatic greasing mechanism according to the embodiment of the present invention will be described with reference to the drawings. Although only the lubrication of the bearing 13 will be described, the lubrication of the bearing 14 is similarly performed. (1) The control device of the automatic greasing unit 21 sets the operation of the grease pump 22 so as to send the required amount of grease 23 at a preset time. (2) The drive motors 20 for 10 units are driven to operate the 10 vibrating screener main bodies 15 to start the sizing operation. (3) Even when the sieve main body 12 is vibrating due to the eccentric rotor 11, the control device operates at a preset time, and a predetermined amount of grease 23 is distributed via the grease pump 22 to the distributor. It is sent to the greasing block 25 of the fixed pipe 26 via 24.

(4) The grease 23 sent to the greasing block 25 is further supplied via the flexible hose 28 to the greasing block 66 provided on the sieve main body 12 near the auxiliary mount 18, and then the sieve. The seal plate 56 is filled with a predetermined amount for a predetermined time so as to close the gap between the oil seal 58 and the spacing collar 54 from the greasing port 64 at the tip of the fixed pipe 65 arranged along the outer surface of the main body 12. It (5) After stopping the grease pump 22 by the control device, the above (3) and (4) are repeated at a frequency of three times a day.

In the vibrating sieving apparatus 10 with the automatic greasing mechanism, the flexible hose 28 of the flexible hose 28 having the above-described structure, in particular, the flexible hose 28 reinforced by the metal spring coil and the automatic greasing unit 21 is used. Since damage and insufficient greasing can be reliably prevented, the oil seals 58 and 59 are burned and the spacing collar 54,
55 can be prevented from being burned, and the lubricating oil 61 in the bearing housings 45 and 46 can be prevented due to the burning of the oil seals 58 and 59.
Can be reliably prevented from flowing out.

The present invention is not limited to the above-described embodiments, and modifications can be made without departing from the spirit of the present invention. For example, some of the above-mentioned respective embodiments and modifications are possible. The present invention is also applied to the case where the vibrating screen device with the automatic greasing mechanism of the present invention is configured by combining all or all of them. In the above-described embodiment, the flexible hose 28 is connected to the greasing block 66 and the greasing port 64 is greased through the fixed pipe 65. However, the present invention is not limited to this, and the flexible hose may be directly connected to the greasing port 64 if necessary. It can also be connected to a greasing port. Seal plate 5 for bearings 13, 14
6 and 57 are provided with the passage 63 to supply the grease 23 to the oil seals 58 and 59, but the present invention is not limited to this, and the passages may be provided to the bearings 13 and 14 to supply the grease 23 depending on the situation. You can also

Bearings 1 of a plurality (10 units in this embodiment) of vibrating screener main body 15 are provided by one grease pump 22.
Although the grease 23 is sent to the Nos. 3 and 14, the present invention is not limited to this, and the grease 23 may be sent to the bearings 13 and 14 of the vibrating screener body 15 of 1 to 9 units or 11 units or more. The grease pump 22 was used to send the grease 23 three times a day, but the present invention is not limited to this, and if necessary, 1
It is also possible to set the grease 23 to be sent once, twice, or four times or more a day.

[0023]

In the vibrating screen device with the automatic greasing mechanism according to the first to third aspects, since the flexible hose is reinforced by the spring coil made of metal, the flexible hose is started and stopped like the conventional flexible hose. It is possible to prevent grease from being insufficiently supplied to the bearing from the distributor automatically at a preset time through the control device without being damaged by a large vibration of the sieve body.
Therefore, it is possible to prevent the oil seal from burning and the spacing collar from burning, and the lubricating oil in the bearing housing may flow out due to the burning of the oil seal, and the bearing may be damaged or burned, resulting in a facility stop. Was eliminated, and the blast furnace operation was not adversely affected.

Particularly, in the vibrating screen device with the automatic greasing mechanism according to the second aspect of the present invention, the grease pump is operated three or more times a day to reliably prevent insufficient lubrication of the grease to the bearing. Productivity can be improved. In the vibrating screen device with the automatic greasing mechanism according to claim 3, since the grease is sent to the bearings of the plurality of vibrating screen machine main bodies by the grease pump, the automatic greasing unit, the main pipe and the like can be shared. Economical efficiency is improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a vibrating screen device with an automatic greasing mechanism according to an embodiment of the present invention.

FIG. 2 is a front view of a vibrating screener main body of the vibrating screen device with the automatic greasing mechanism.

FIG. 3 is a side view of a vibrating screen body of the vibrating screen device with the automatic greasing mechanism.

4A and 4B are a drive side sectional view and a driven side sectional view of an eccentric rotor of a vibrating screen body of a vibrating screen device with the automatic greasing mechanism, respectively.

5 is an enlarged view of part A in FIG. 1. FIG.

[Explanation of symbols]

10: Vibrating sieve device with automatic greasing mechanism, 11: Eccentric rotor, 12: Sieve body, 13, 14: Bearing, 15: Vibrating sieve machine body, 16, 16a: Support stand, 17, 17a: Support stand, 18 : Auxiliary mount, 19: Universal joint, 20: Drive motor, 20a: Output shaft, 21: Automatic greasing unit, 22:
Grease pump, 23: grease, 24: distributor, 25:
Greasing block (joint), 26: fixed piping, 27: mounting bolt, 28: flexible hose, 29: support spring set, 29a: spring seat, 30, 30a: mounting bracket,
31, 31a: Mounting bracket, 32: Mounting base, 3
3: Belt pulley, 34: Endless belt, 35: Mounting base, 36, 37: Bearing, 38: Rotating shaft, 39: Belt pulley, 40: Shaft coupling, 41: Shaft coupling, 42: Pipe spacer, 43, 44: Housing receiver, 45, 46: Bearing housing, 47: Bolt, 48: Nut, 49, 5
0: eccentric weight, 51: spacer, 52: retainer plate,
53: fixing bolt, 54, 55: spacing collar,
56, 57: seal plate, 58, 59: oil seal, 60: spherical roller, 61: lubricating oil, 62: flow path, 6
3: Flow path, 64: Greasing port, 65: Fixed pipe, 66: Greasing block (joint), 67, 68: Main pipe, 69, 70: Branch pipe, 71, 72: Y type strainer, 73, 74: Two-way check valve, 75: Ball valve, 76: Belt cover, 7
7: weight cover, 78: oil supply port, 79: discharge port, 8
0: Plug

Claims (3)

[Claims] 1. An auxiliary provided separately from a vibrating screener main body, in which both ends of an eccentric rotor, which is a vibration generation source, are attached to a screen main body via bearings, and a vibrating screener main body that continuously operates, and a supporting frame of the vibrating screener main body. A drive motor mounted on a pedestal for transmitting power through the eccentric rotor and a universal joint, a grease distributor fed by a grease pump, and piping from the distributor to the vicinity of the bearing of the vibrating screener body. And a fixed pipe having a joint at the tip, and a joint of the fixed pipe,
A flexible hose, which is connected to the greasing port of the bearing and whose entire length is reinforced by a metal spring coil, and the grease pump are operated at a preset time to automatically apply grease to the bearing from the distributor. Vibrating screen device with an automatic greasing mechanism, characterized in that the vibrating screen device is provided with a control device that feeds it automatically. 2. The vibrating screen device with an automatic greasing mechanism according to claim 1, wherein the grease pump is operated three or more times a day. 3. The vibrating screen device with an automatic greasing mechanism according to claim 1, wherein the grease pump feeds grease to a plurality of bearings of the vibrating screen machine body. A vibrating screen device with an automatic greasing mechanism.