JP3210607B2 - Oil cooler for rod mill, rod mill - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod mill in which a shell main body is rotated by driving wheels, and more particularly to an oil cooler having a mechanism provided with the driving wheels, and more particularly to a rod mill having an air cooling fan. The present invention relates to an oil cooler device for use and a rod mill provided with the oil cooler device.

[0002]

2. Description of the Related Art Conventionally, in a rod mill in which a shell main body is rotated by driving wheels, an oil cooler device having a mechanism provided with the driving wheels includes a radiating coil portion provided in the middle of a circulating pipe through water purification or the like. There has been a device that is disposed in a cooling tank in which the lubricating oil is circulated in a so-called water-cooled manner and cools high-temperature lubricating oil.

[0003]

However, the oil cooler device for a rod mill having the above-described structure is a water-cooled type, so that it is necessary to always secure purified water to be put into a cooling tank. Even if it is difficult to secure purified water or if you can secure a source of purified water,
Due to the high cost for this purpose, circulating water (reused water) purified by mixing chemicals is often used instead of purified water. However, since this circulating water contains chemicals, the corrosion of the piping of the heat radiation coil and the piping for sending the cooling water into the cooling tank is extremely rapid under the influence of the chemicals. In some cases, the pipes could not be used. Furthermore, when the installation location of the rod mill is in a cold region or a high-temperature region, it is necessary to prevent the cooling water from freezing, and to warm the piping that sends the cooling water into the cooling tank,
Further, after the operation of the rod mill is stopped, it is necessary to take measures such as keeping the cooling water flowing, and it takes time to operate the rod mill. Therefore, there is no need to secure water, the running cost is relatively low, an oil cooler device for a rod mill in a rod mill that rotates a shell body by a driving wheel, and a mechanism provided to rotate the driving wheel. It is an object of the present invention to provide a rod mill provided with an oil cooler device for a rod mill having the same.

[0004]

The present invention SUMMARY OF] is a one that is created in order to solve the above problems, the first, rotating shaft of the drive wheel for rotating the market shares <br/> reel body And a rod mill having a plurality of housing portions accommodating the differential device ,
A radiating coil section is provided in a circulation line for circulating the lubricating oil stored in the housing section to the housing section, and the lubricating oil is passed through
The heat radiating coil unit to excessive and has a cooling unit for forcibly cooling the rotation of the fan, the said cooling unit Haujin
For each lubricating section, and for lubricating oil
A temperature sensor that detects the oil temperature is provided for each housing.
For each housing, adjust the oil temperature by the temperature sensor
It is characterized in that corresponding control can be performed .

[0005] The oil cooler for a rod mill of the first configuration.
Drive device that rotates the shell body.
The speed of the rotation speed of the drive wheel, which is provided on the rotating shaft to be rotated
The lubricating oil that lubricates the differential
With the operation of the differential with the operation of Domill,
Due to the generated frictional heat, the temperature rises and the lubrication effect decreases
Lubricating oil stored in the housing to prevent
Is circulated through the circulation line to the housing section,
The heat is radiated by the radiating coil provided in the circulation line,
A cooling unit provided for each of the housing units with respect to the heat radiation coil unit.
The lubricating oil is removed by the rotation of the fan in the cooling section.
Forcibly air-cool independently for each housing. In addition,
Temperature sensor that detects the oil temperature of the lubricating oil installed in the annulus
Is provided for each housing, and for each housing,
The temperature sensor performs control according to the oil temperature. In rod mill oil cooler apparatus of this configuration, since the upper Symbol cooling unit are disposed in each said housing section, compared with the case of lubricating a plurality of drive mechanism in one of the oil cooler as a whole, for example, Even if a certain mechanical part is damaged, the damaged metal piece or the like does not reach another mechanical part via the lubricating oil, and therefore, a chain effect on other mechanical parts is prevented. I will not give. Therefore, it is possible to avoid a situation in which all the drive mechanisms are destroyed by one accident, and it is possible to minimize the damage. Ma
In addition, due to the rotation of the fan,
The oil is forcibly air-cooled.
No cooling tank is required to be installed in the oil section,
It is no longer necessary to secure
It is no longer necessary to take measures to prevent the cooling water from freezing.
A very convenient not choose the installation location of Ddomiru, or
The cost of securing a water source is not
The cost can be significantly reduced.

[0006] Further , the oil temperature of the lubricating oil provided in the circulation pipeline is controlled.
A temperature sensor to detect is arranged for each housing,
For each housing, depending on the oil temperature by the temperature sensor
The control is possible, so the lubricating oil circulating
And accurate forced air cooling is possible for each housing
Thus, the oil temperature of the lubricating oil can always be controlled to a predetermined temperature. Accordingly, when the oil temperature of the lubricating oil is relatively low (for example, when the rod mill is operated in a cold region or a high cold region), the rotation of the fan can be stopped. In other words, oil lubrication deteriorates due to supercooling, and further prevents accidents due to inability to lubricate, and further saves energy, such as power saving during rod mill operation, and reduces running costs. Can be done. Further, the life of the cooling unit such as the fan can be extended.

[0007] Secondly, in the oil cooler device for a rod mill of the first configuration, a temperature sensor provided in the circulation pipe for detecting the oil temperature of the lubricating oil has a temperature other than a predetermined temperature. When an abnormal temperature or abnormal temperature is detected, an alarm is issued or all of the mechanisms provided for rotating the drive wheels are stopped. In the oil cooler device for a rod mill having this configuration, particularly, when the temperature sensor provided in the circulation pipe and detecting the oil temperature of the lubricating oil detects a temperature other than a predetermined temperature or an abnormal temperature, a warning device is provided. Because an alarm is issued by, or because all the mechanical units are automatically stopped, for example,
Even if the oil temperature of the lubricating oil rises abnormally due to some kind of trouble, it is possible to know by an alarm, and to take prompt measures, and to take the worst case (for example, destruction of the mechanism, etc.) ) Can minimize damage, or the worst case can be avoided by automatically stopping all mechanical units.

[0008] Third, the lock of the first or second configuration is used.
An oil cooler for a domill, wherein a cooling unit fan
Should be stopped in conjunction with the stop of the rotation of the drive wheels.
It is characterized by being done. This configuration for rod mill
In an il cooler, the fan of the cooling unit
Since the rotation stops in conjunction with the stop of the rotation of the wheel, lubrication oil
Of the forced air cooling effect on
Energy savings such as power saving during operation
Ning cost can be reduced.

A fourth aspect of the present invention is a rod mill for rotating a shell body by driving wheels , wherein the shell body is rotated by driving wheels.
In the rotating rod mill, rotate the drive wheel.
The mechanism provided as described in the above configuration 1 or 2 or 3
Characterized by having an oil cooler device for rod mills
And The rod mill of the present configuration, a rod mill oil cooler of any configuration from the first assembly with order and which can be rotated drive wheels are independently between the driving wheels which are oppositely arranged via the guinea to third Since it is arranged in the device, compared to the case where a plurality of drive mechanisms are lubricated by one oil cooler as a whole rod mill, even if a certain mechanism part is damaged, it is connected via the lubricating oil. The damaged metal pieces and the like do not reach the other mechanical parts, and thus do not have a chain effect on the other mechanical parts. Therefore, it is possible to avoid a situation in which all the drive mechanisms are destroyed by one accident, and it is possible to minimize the damage.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One specific example of an embodiment of the present invention will be described with reference to the drawings. First, a first specific example will be described with reference to FIGS. The oil cooler device A for a rod mill of the first specific example based on the present invention has mechanical units D1, D2, D3 and a main control unit MC. Each mechanism has a similar configuration.
Only the mechanism D1 will be described in detail. Here, as shown in FIG. 1, the mechanism section D <b> 1 includes a housing section H, an oil filter 20, a radiating coil section 30, an oil pump 40, and a circulating pipe for connecting these sequentially to circulate the lubricating oil 1. Road P,
A cooling unit F for exerting a forced air cooling action on the heat radiation coil unit 30, a temperature sensor 50, an alarm device 70, and a sub-control unit SC for controlling the cooling unit F, the alarm device 70, and the oil pump 40 It is composed of

Here, the housing portion H is mainly composed of the rotating shaft 10.
, A differential device 12, a housing 13, a reservoir 14 for the lubricating oil 1, a drain port 16, an injection port 18, and the like. The drive shaft 15 made of a tire is attached to both ends of the transfer shaft 10 via wheel attachment portions, and a differential device 12 described later is provided at a substantially intermediate portion. And it is connected with the drive motor 11 via a transmission mechanism not shown. The differential device 12 is provided with a ring gear that scoops and lubricates the lubricating oil 1 stored in a storage unit 14 provided in a housing 13 described later. The housing 13 is a case formed so as to be able to store at least the rotation shaft 10 and the differential device 12.
A storage portion 14 is formed below the portion where the lubrication oil 2 is disposed so as to be able to store the lubricating oil 1. And the storage unit 14
A drain port 16 is provided at the lower part of the lubricating oil 1.
Is connected to a circulation pipeline P described later. In addition, an inlet 18 is provided at an upper portion of the housing 13 where the differential device 12 is provided, and an end of the circulation line P is connected to the inlet 18.

The circulation pipe P is formed by sequentially connecting the drain port 16 of the housing part H, the oil filter 20, the heat radiation coil part 30, the oil pump 40, and the inlet port 18 of the housing part H. It is for circulating the lubricating oil 1 stored in the storage unit 14. Oil filter 20
Is to remove impurities generated by the operation of the differential device 12 mixed with the lubricating oil 1 and the like. Heat radiation coil part 30
Is formed by bending the circulation pipe P into a coil shape, and a plurality of fins are formed on the outer peripheral surface to enhance the heat radiation effect. The oil pump 40 smoothly circulates the lubricating oil 1 in the circulation pipe P by driving thereof.
It is controlled by a sub-control unit SC described later.

The cooling section F mainly comprises a fan 60, a drive motor 62 and the like. The fan 60 is rotated by the drive motor 62 to forcibly apply air cooling to the heat radiation coil unit 30. That is, the lubricating oil 1 passing through the heat radiating coil unit 30 while radiating heat is further forcibly blown by air to cool the air, and exhaust heat.
Lower the oil temperature of the lubricating oil 1. In addition, this cooling part F
It is controlled by a sub-control unit SC described later. Temperature sensor 50
Is provided in the circulation pipe P to accurately detect the oil temperature of the circulating lubricating oil 1. The data of the oil temperature of the lubricating oil 1 detected by the temperature sensor 50 is always sent to a sub-control unit SC described later.

As described above, the sub-control unit SC controls the cooling unit F, an alarm device 70 described later, and the oil pump 40, and the sub-control unit SC is described below.
It is controlled by two main control units MC.
Therefore, various data that have entered the sub-control unit SC are always sent to the main control unit MC. Specifically, first,
A rotation start command or a stop command is output to the drive motor 62 of the cooling unit F.
In response to oil temperature data of the lubricating oil 1 constantly input from the temperature sensor 50, when an oil temperature other than the oil temperature in a preset range is detected, an alarm is issued to an alarm device 70 described later. The third is to output a drive command or a drive stop command for the oil pump 40. The alarm device 70 issues an alarm according to the command output from the sub-control unit SC.

Next, the main control unit MC controls the sub-control unit SC such as the mechanical unit D1 and controls various data transmitted from the sub-control unit SC such as the mechanical unit D1. , The drive motor 11 is also controlled. For example, when the temperature sensor 50 such as the mechanism section D1 detects an abnormal oil temperature and the oil temperature data is sent to the sub control section SC, the main control section MC controls the drive motor 11 Outputs a command to stop rotation immediately.

Next, the use state of the oil cooler device A for a rod mill according to the first embodiment will be described. First, in the rod mill, when the drive motor 11 is rotated, the rotating shaft 10 is rotated via a transmission mechanism (not shown) to rotate the drive wheel 15, and a shell body (not shown) mounted on the drive wheel 15 Also rotates. A plurality of rods for crushing rough stones are accommodated in the shell main body, and the turning state of the shell main body is constantly accompanied by vertical and horizontal swings due to the rolling and falling of the rod. Therefore, each drive wheel 15
Instantaneously, the instantaneous rotational speed of the driving wheel 15 changes every moment.
In order to adjust the respective speed differences, a differential device 12 provided at a substantially intermediate portion of the turning shaft 10 operates. Such operation of the differential device 12 generates frictional heat in the device itself. Accordingly, the oil temperature of the lubricating oil 1 provided for the smooth operation of the differential device 12 may gradually increase due to the frictional heat, and may cause a decrease in the lubricating action.

Therefore, the oil pump 4 is connected via the circulation line P.
0 is driven, and the lubricating oil 1 stored in the storage portion 14 formed in the housing 13 in which the differential device 12 is provided is drawn out from the drain port 16. After passing through the filter 20, the heat is radiated by the radiating coil unit 30 while the fan 60 of the cooling unit F rotates to forcibly air-cool and exhaust heat, the oil temperature is lowered, and the oil is circulated to the inlet 18 repeatedly. When the rotation of the drive wheel 15 stops, the rotation of the drive motor 62 of the cooling unit F also stops in conjunction with this. When the drive wheel 15 rotates again, the cooling unit F
Drive motor 62 also rotates. When the temperature sensor 50 disposed in the circulation pipeline P detects a temperature other than a preset temperature or an abnormal temperature of the lubricating oil 1, the alarm device 70 issues an alarm and Then, the drive motor 11 immediately stops rotating.

According to the oil cooler device A for a rod mill having the above-described structure, the circulating lubricating oil 1 is forcibly air-cooled in the cooling unit F by the rotation of the fan 60. There is no need for a cooling tank to be installed, so there is no need to secure purified water, etc., nor is it necessary to take measures to prevent the cooling water from freezing in cold or high-cooled regions, and therefore, regardless of the installation location of the rod mill. It is very convenient and does not require a cost for securing a water source, so that running costs can be significantly reduced. Further, since a plurality of fins are provided on the outer peripheral surface of the heat radiating coil portion 30, the heat radiating effect is further improved, and combined with the forced air cooling effect by the rotation of the fan 60 of the cooling portion F, the heat discharge rate is remarkably increased. Circulating lubricating oil 1
And the oil temperature can be lowered.
In addition, since the fan 60 of the cooling unit F stops the rotation in conjunction with the stop of the rotation of the drive wheel 15, an unnecessary forced air cooling action on the lubricating oil 1 is eliminated, and energy such as power saving in the operation of the rod mill is reduced. Can be saved. Further, the fan 60 of the cooling unit F is rotated in conjunction with the temperature sensor 50 provided in the circulation pipe P and detecting the oil temperature of the lubricating oil 1. Precise forced air cooling is possible, and lubricating oil 1
Can be controlled to a predetermined temperature. Therefore,
When the oil temperature of the lubricating oil 1 is relatively low (for example, in a cold region,
In a case where the rod mill is operated in a high-temperature area, for example), the rotation of the fan 60 may be stopped. In other words, the lubricating property of oil deteriorates due to supercooling,
It is possible to prevent an accident from occurring due to an inability to lubricate and further save energy such as power saving in the operation of the rod mill. Further, the life of the cooling unit F such as the fan 60 can be extended. Further, the temperature sensor 50
However, when a temperature other than a predetermined temperature or an abnormal temperature is detected, an alarm is issued by the alarm device 70,
Since the drive motor 11 stops immediately and the mechanism section D1 stops automatically, for example, even if the oil temperature of the lubricating oil 1 rises abnormally due to some trouble, the alarm is issued. As a result, the mechanism D1 automatically stops, and the worst case (for example, destruction of the mechanism) can be avoided, so that so-called crisis management can be performed smoothly.

Next, a second specific example will be described with reference to FIGS. The rod mill B of the second embodiment according to the present invention mainly includes one shell body S and the shell body S.
A plurality of drive wheels 15 made of tires for rotating the worm, one drive motor 11 for rotating the plurality of drive wheels 15 via the transmission mechanism 17 and the rotation shaft 10 of each mechanism, and an oil cooler device for a rod mill A, hopper 90, shoot 9
2, a stone feeding device 94, a sorting device 96, and the like. The shell main body S is such that the feeding port 82 has a tapered shape having a diameter larger than that of the discharge port 84, and an outer ring body 80 which is in rolling contact with the plurality of driving wheels 15 is provided on the outer peripheral surface thereof. And it is mounted on the plurality of drive wheels 15. The shell body S may have a cylindrical shape.

The structure of the oil cooler A for the rod mill is exactly the same as that of the first embodiment, and the description thereof is omitted. However, as shown in FIGS. 3 and 5, the oil cooler device A for the rod mill is independently provided between the drive wheels 15 opposed to each other via the rotating shaft 10, and the mechanism parts D 1, D
2, D3 are provided. The transmission mechanism 17 is for transmitting the rotation of the drive motor 11 to the rotating shaft 10 of the mechanism units D1, D2, D3, and transmits the rotation of the drive motor 11 via a V-belt 173 or the like. A drive shaft 171 connected to the differential device 12 of the mechanism D1 and a propulsion shaft 17 sequentially connected between the differential devices 12 of the other mechanisms D2 and D3.
It has 2nd magnitude. Note that the transmission mechanism 17 is not limited to the second specific example, including related devices for controlling the transmission mechanism 17, and may be an arbitrary one. In addition, the hopper 90, the chute 92, the feeding device 94, and the sorting device 9 of the rod mill B
The arrangement of other devices such as 6 is provided as shown in FIG. In addition, it is not particularly limited to these devices.

Next, the use state of the rod mill B of the second specific example will be described. First, the ore stored in the hopper 90 is sent to the stone feeding device 94 which rotates integrally with the shell main body S via the chute 92. Then, the ore is supplied into the shell main body S by a fixed amount from the stone feeding device 94, and the rotation of one drive motor 11 is transmitted to the rotating shafts 10 of the mechanical units D1, D2, D3 via the transmission mechanism 17. The plurality of drive wheels 15
The shell body S also rotates due to the rotation, so that the plurality of rods in the shell body S roll and fall, and the raw stone is hit and crushed. Then, the raw material is discharged from the discharge port 84 of the shell main body S to the separation device 96, and is separated by the particle size of the crushed rough stone in the separation device 96. During the operation of the rod mill B, the oil cooler device A for the rod mill also operates in the same manner as in the first embodiment.

According to the rod mill B having the above-described structure, in the oil cooler A for the rod mill, three mechanical parts D1, D2 and D3 are independently provided between the driving wheels 15 opposed to each other via the rotating shaft 10. Even if a single mechanical part is damaged, it can be damaged via lubricating oil, compared to a case where a single oil cooler lubricates a plurality of drive mechanism parts. The scraped metal pieces and the like do not reach the other mechanisms, and thus do not have a chain effect on the other mechanisms. Therefore, it is possible to avoid a situation in which all the drive mechanisms are destroyed by one accident, and it is possible to minimize the damage.

[0023]

According to the oil cooler device for a rod mill according to the first aspect of the present invention, the cooling unit is provided with the cooling unit.
Since it is arranged for each housing part, one
When lubricating multiple drive mechanisms with an oil cooler
In comparison, even if one mechanical part is damaged
Even if the broken metal pieces, etc.
To reach other mechanisms.
And has no cascading effect. Therefore, in one accident
Avoid the situation where all drive mechanisms are destroyed
And the damage can be minimized. Ma
In addition, since the lubricating oil circulating in the cooling unit is forcibly air-cooled by the rotation of the fan, a cooling tank disposed in the radiating coil unit is unnecessary as in the case of a water-cooled type. In addition, there is no need to take measures to prevent the cooling water from freezing in cold or high-temperature regions.Therefore, it is very convenient regardless of the installation location of the rod mill, and the cost for securing a water source is also low. Therefore, running costs can be significantly reduced. Also circulation
A temperature sensor installed in the pipeline to detect the lubricating oil temperature
Arranged for each housing, and for each housing,
The temperature sensor can be controlled according to the oil temperature.
As a result , accurate forced air cooling action is
It is possible for each housing, and always keep the lubricating oil temperature constant.
It can be controlled to a constant temperature. Therefore, lubricating oil
If the temperature is relatively low (for example,
Rotation of the fan).
It can be stopped. In other words, by supercooling
If the lubrication of the oil deteriorates,
In addition to preventing accidents,
Energy savings, such as power savings during
As a result, running costs can be reduced. Further
In addition, the service life of the cooling unit such as the fan can be extended.
You.

In particular, according to the oil cooler for a rod mill of the second aspect, the oil cooler is provided in the circulation pipe.
Temperature sensor that detects the oil temperature of the lubricating oil
When a temperature other than the specified temperature or abnormal temperature is detected
In addition, an alarm is issued by an alarm device.
Or all mechanical parts stop automatically.
The oil temperature of the lubricating oil
Can be notified by warning even if
Can take immediate action, and in the worst case
By avoiding the situation (for example, destruction of the mechanism)
Damage can be minimized or all aircraft
Avoid worst-case situations by automatically shutting down components
Can be

Further, in particular, according to the oil cooler device for a rod mill according to the third aspect, the fan of the cooling unit is driven by the drive unit.
Since the rotation stops in conjunction with the stop of the rotation of the driving wheel, lubrication
Eliminates the need for extra forced air cooling on oil
Energy savings, such as power saving in the operation of
Running cost can be reduced.

Further, in particular, the rod mill according to claim 4
According to the above, the mechanism provided for rotating the drive wheels
Independently between the driving wheels opposed via the shaft, the first to third
Oil cooler for rod mill
The whole rod mill is
When lubricating multiple drive mechanisms with an oil cooler
In comparison, even if one mechanical part is damaged
Even if the broken metal pieces, etc.
To reach other mechanisms.
And has no cascading effect. Therefore, in one accident
Avoid the situation where all drive mechanisms are destroyed
And the damage can be minimized.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of an oil cooler device for a rod mill according to the present invention.

FIG. 2 is an explanatory diagram showing an operation relationship of a rod mill oil cooler device of a first specific example based on the present invention.

FIG. 3 is a schematic view showing an oil cooler device for a rod mill in a rod mill of a second specific example according to the present invention.

FIG. 4 is a side view of a rod mill of a second embodiment according to the present invention.

FIG. 5 is a front view showing a main part of a rod mill of a second specific example according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lubricating oil 10 Spindle 12 Differential device 15 Driving wheel 30 Radiation coil part 50 Temperature sensor 60 Fan 70 Alarm device A Oil cooler device for rod mill B Rod mill D1, D2, D3 Mechanism part F Cooling part H Housing part P Circulation line

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B02C 1/00-7/18 B02C 15/00-17/24

Claims (4)

(57) [Claims] 1. A rod having a plurality of housing portions accommodating a rotating shaft of a driving wheel for rotating a shell main body and a differential device.
In the mill, the lubricating oil reserved in the housing unit, the provided radiating coil unit in the circulation pipe for circulating the housing unit, the cooling unit the heat radiation coil unit to which the lubricating oil passes through forced cooling by the rotation of the fan together with a, the cooling unit is disposed in each said housing section, and further, temperature for detecting the oil temperature of the lubricating oil which is provided in the circulation conduit
A temperature sensor is provided for each housing, and for each housing, according to the oil temperature
Oil cooler device for a rod mill , characterized in that the oil cooler device can be controlled in a controlled manner. 2. The oil temperature of a lubricating oil provided in a circulation line is controlled.
The temperature sensor to detect is set to a predetermined temperature
When an abnormal temperature or abnormal temperature is detected, an alarm is issued or
Stop all the mechanisms provided to rotate the drive wheels
The oil cooler device for a rod mill according to claim 1, wherein the oil cooler device is used for the rod mill. 3. The cooling unit stops rotation of the drive wheels.
The feature is that it was made to stop rotating in conjunction with
The oil cooler device for a rod mill according to claim 1 . 4. A rod for rotating a shell body by driving wheels.
2. A mill according to claim 1, further comprising a mechanism provided for rotating said driving wheel.
Or an oil cooler device for a rod mill according to 2 or 3.
A rod mill comprising: