JPH08189772A - Apparatus for feeding grease to slipper unit in rotary kiln - Google Patents

Abstract

PURPOSE: To feed grease in wider ranges by providing a second nozzle directing to a position, to which grease is fed, between slide blocks on the opposite side of a first nozzle with respect to a tire, connecting the first and second nozzles to a three- way change-over valve through pipe passages and changing over the valve side to be connected to the first nozzle or to the second nozzle. CONSTITUTION: After a predetermined amount of grease is fed to a position 22 to be greased from the right side of a tire 3, compressed air in an air pipe passage 85 is discharged by a control unit 84, and a three-way change-over valve 56 is changed over to connect a grease feed pipe passage 57 to a grease feed pipe passage 57a, whereby the grease is ejected and supplied through a nozzle 10a. Thereafter, compressed air is again fed by the control unit 84 through the air pipe passage 35, and the three-way change-over valve 56 connects the grease feed pipe passage 57 to a grease feed pipe passage 57b. Simultaneously, compressed air in an air passage 88 is discharged, and cylinders 26 of nozzle angle changing means 14a, 14b are operated to be reduced by the action of tension springs, whereby the directions in which the nozzles 10a, 10b are directed are changed so as to be directed in the directions (shown by the arrows 30a, 30b) in which a position 21 to be greased passes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a greasing device for greasing between a tire inner peripheral surface which constitutes a slipper portion of a rotary kiln and a shell side block which is in contact with the inner peripheral surface.

[0002]

2. Description of the Related Art The body of a rotary kiln is a steel cylinder which is rotatable about its axis and is slightly inclined from horizontal, and is entirely or partially lined with a refractory material. The size of the kiln is, for example, several tens of meters in length and several meters in inner diameter for cement firing. There are 3 to 4 support positions in the longitudinal direction. At each support position, as shown in FIG. 10, a slide block 2 is provided on the outer periphery of the shell 1 of the rotary kiln body, and the inner peripheral surface is in contact with the slide block. Tire 3
Is provided, and is supported by a pair of rollers 4 that come into contact with the outer peripheral surface of the tire 3 to be rotatable. A large number of slide blocks 2 are provided with a gap e in the circumferential direction, and are fixed by reinforcing ribs 5 welded to the outer surface of the shell 1, and the surface facing the inner peripheral surface 3a of the tire 3 and the tire 3 are fixed. It has a groove-shaped portion composed of opposing surfaces near the inner edges of both side surfaces. The tire 3 is a ring having a width of about 1 m and a rectangular cross section that is uniform in the circumferential direction. The inner diameter of the tire 3 is determined in consideration of thermal expansion. There is some margin between the peripheral surface 3a and the surface facing the peripheral surface 3a. When the rotary kiln body rotates, slippage occurs between the slide block 2 and the tire 3, and the tire 3 also rotates. Such a rotary kiln is lubricated with oil and grease between the slide block 2 and the inner peripheral surface 3a of the tire.

As a conventional technique of this kind, an actual Kaihei 2-1 is used.
There is one disclosed in No. 24492. The schematic structure is that a swingable arm is provided on the base near the rotary kiln tire, a lubricating oil injection nozzle and a roller are attached to the tip of the arm, and the roller is a projection provided intermittently on the outer periphery of the shell of the rotary kiln. (Slide block)
The arm is disposed at a position where it abuts against, and the intermittent swing motion of the arm due to the rotation of the rotary kiln is detected by a limit switch, and the solenoid valve is operated by the detection signal to control the injection timing of the lubricating oil. A controller is attached. Lubricating oil is supplied from a pump to the lubricating oil injection nozzle.

[0004]

In the above conventional greasing device, the oil injection nozzle detects intermittent rocking motion of the arm with the limit switch, and operates the solenoid valve according to the detection signal to inject the lubricating oil. Although it is a configuration that controls the timing, no clear idea is given as to when the injection should be performed. Further, since the oil / fat injection nozzle is constructed integrally with the protrusion detection roller, it always moves together with the roller. That is, when the roller detects a protrusion, the roller moves according to the outer shape of the protrusion, and the nozzle also moves in the same manner. For this reason, the nozzle cannot be caused to perform a movement different from the movement of the roller.
Therefore, no matter how the injection timing is selected,
The locus of the position of the nozzle is constant because it follows the movement of the roller. For this reason, the conventional greasing device cannot be greased in a wide range so as not to be contaminated by the surrounding oil and fat.

However, it is desirable to supply the oil and fat to the entire sliding surface. Also, in the conventional greasing device, one oil and fat injection nozzle is provided on one side, and it is necessary to greasy from a wide width tire on both sides. In that case, greasing is performed on each nozzle. A greasing unit is needed. An object of the present invention is to provide a greasing device for a rotary kiln slipper unit, which is capable of greasing over a wider range.

[0006]

According to a first aspect of the present invention, there is provided a detecting means for detecting a greasing portion between slide blocks of a rotary kiln, a first nozzle directed to the greasing portion from one side of a tire, A rotary kiln slipper equipped with a greasing unit including a pump connected to the first nozzle for supplying oil and fat, and a valve provided between the first nozzle and the pump for opening and closing a detection signal of the detection means. In the partial greasing device, a three-way valve is provided between the first nozzle and the valve, and a second nozzle directed to a greasing portion between slide blocks on the opposite side of the first nozzle with respect to the tire is provided. A second nozzle and the three-way switching valve are connected, and the valve side is switched and connected to the first nozzle and the second nozzle.

In the above means, a check valve having a forward direction from the valve to the injection port is provided near the injection port between the injection port of the second nozzle and the valve, and
The opening pressure of the check valve may be set to be slightly lower than the supply pressure supplied from the pump.

The means of the second invention is a detecting means for detecting a greasing site between slide blocks of a rotary kiln,
A nozzle directed to the greasing portion from the side of the tire,
A rotary kiln slipper unit greasing device including a greasing unit including a pump connected to the nozzle for supplying oil and fat, and a valve provided between the nozzle and the pump for opening and closing a detection signal of the detection unit. In the above, the nozzle angle changing means for changing the position of the nozzle pointing along the axial direction of the rotary kiln during the period in which the nozzle injects oil and fat is provided.

In the means of the second invention, the detecting means is a swing arm which is swung by the swing of the slide block, and the valve is opened and closed based on the swing of the swing arm. The nozzle angle changing means supports the nozzle to change the directing direction of the nozzle, and is provided with a transmission mechanism that is connected to the nozzle side and transmits a force that changes the nozzle angle. It is preferable to provide interlocking means for operating the nozzle angle changing means in conjunction with the opening / closing drive of the valve.

In the means of the second aspect of the invention, the interlocking means is configured to give an acting force for opening and closing the valve and changing the nozzle angle by a cam provided on the swing center axis of the swing arm. It is better to assume that
Two cams may be provided for opening and closing the valve and for changing the nozzle angle, but one cam may be shared.

[0011]

According to the means of the first invention, by switching the three-way valve, the greasing can be switched and supplied from the two positions of the first nozzle and the second nozzle separately provided on both sides of the tire.

Since the first nozzle and the second nozzle are arranged on both sides with the tire in between, the distance between the injection port of the second nozzle and the valve becomes long when the first nozzle is arranged at a position close to the valve. If the piping distance from the valve to the injection port is long, the amount of air entering the piping will increase, so
Even after the valve is closed, the compressed air expands and pushes out oils and fats from the injection port of the nozzle, and the injection force after the valve is closed gradually decreases, so it is injected to a part that does not require lubrication, Or it may drip and stain the surrounding area. To solve this problem, the structure in which the check valve is provided near the injection port between the injection port of the second nozzle and the valve reduces the supply pressure of oil and fat in the pipe from the valve to the second nozzle by closing the valve. When the pressure starts to drop, the check valve closes at a point when the pressure becomes slightly lower than the supply pressure at the initial stage, and the pushing out of oil and fat due to the expansion of air is stopped. Therefore, there is no possibility of spraying or dripping onto a place where greasing is unnecessary.

In the means of the second aspect of the invention, the nozzle angle is changed during the nozzle injection, and the spray position of the grease spreads in the axial direction of the rotary kiln, that is, in the width direction of the tire. The surface to be lubricated makes it possible to lubricate more widely.

The structure provided with the interlocking means for operating the nozzle angle changing means in conjunction with opening and closing of the valve can surely match the timing of opening the valve and changing the angle.

Since the interlocking means is a cam provided on the swing center axis of the swing arm, since it is a purely mechanical construction, it is possible to reduce failures against heat of the rotary kiln as compared with electrical ones. .

[0016]

Embodiments of the present invention will be described with reference to FIGS. 1 to 4 and 10. The greasing device of this embodiment is applied to greasing the slipper part of a rotary kiln, and the rotary kiln is for cement firing.
It is a greasing device for the slipper part of the rotary kiln (hereinafter sometimes referred to as the kiln only) shown in. This greasing device, which is integrally formed as the shot valve unit 15, is arranged in the vicinity of each slipper part of each support part which supports the rotation of the long kiln on the way, and is supported by the follow-up means 16, and is suitable. It can be operated at regular time intervals.
The following one shot valve unit 15 and following means 1
6 will be described.

The shot valve unit 15 includes a first nozzle 10a and a second nozzle 10 as shown in FIGS.
b, detecting means 11, valve 12, arm retracting means 13,
Nozzle angle changing means 14a and 14b are provided. The shot valve unit 15 is provided in the follow-up means 16 as shown in FIGS. The first nozzle 10a, the detection means 11, the valve 1 of the shot valve unit 15
2, arm retracting means 13, nozzle angle changing means 14a,
The remaining second nozzle 10 provided on one of the bases 20
b, the nozzle angle changing means 14b is provided on the other column 122.

The nozzles 10a and 10b have a predetermined greasing portion of the rotary kiln slipper portion (the outer peripheral surface of the shell 1 between the slide blocks 2 and 2) that swivels as shown in FIG. It is directed from both sides of the tire 3 to a position where a gap 21 between the tire inner peripheral surface 3a) passes, and also greasing to another greasing portion (tire side surface between the slide blocks 2) 22. Nozzle angle changing means 14a and 14b are provided so that the angle can be changed by a constant angle α set within an angle range of about 20 °. The nozzle 10a has a simple injection hole, while the nozzle 10b has a check valve therein. As shown in FIG. 4, the nozzle 10a includes a main body portion 31, a check valve 32, a valve opening pressure setting spring 33, an injection hole 3 which is connected to a nozzle base portion 23 following a greasing conduit 57b described later.
It has a base 35 having a number 4. In the figure, reference numeral 36 is a notch portion forming an oil and fat passage. The valve opening pressure setting spring 33 is set to a value slightly smaller than the greasing pressure supplied through the valve 12. The nozzle 10a
However, when the distance from the valve 12 is long, it is preferable to use the one having the check valve therein.

Since the nozzle angle changing means 14a and 14b have the same structure, only the nozzle angle changing means 14a will be described, and the description of the nozzle angle changing means 14b will be omitted. The nozzle 10a is bent 90 ° in the middle, and as shown in FIG. 2, is rotatably coupled to a nozzle base portion 23 fixed in a fixed position on the base body 20 side, and extends a little from the coupled position to form an axis line. On the other hand, it is bent by 90 ° and opened. The bent and extended distal end side is supported by a holder 24 attached to the base portion 23 via an air cylinder 26, is rearward and slightly upward in FIG. 2, and the jet direction of the nozzle 10a is the axis of the base portion 23. The air cylinder 26 is designed to be changeable around the.

When the air cylinder 26 expands and contracts, the nozzle 10a forms an angle α around the axis of the nozzle base 23.
Only rotate (see FIG. 1). Although detailed description is omitted, an air cylinder 26 having a stroke adjustable is used, and the angle α can be changed and adjusted by changing the stroke. When the compressed air is not supplied, the air cylinder 26 is in a shortened state by the tension spring shown by 40 in FIG. 2, and the jet direction of the nozzle 10a is an arrow 30a (the jet direction of the nozzle 10b is an arrow 30b).
When the compressed air is supplied, the nozzle injection direction is changed by the angle α. At the site where the device of this example is installed, the angle is changed with α set to about 12 ° to change the angle from the state toward the greasing portion 21 to the greasing portion 2.
I was able to move toward 2. Further, the nozzle angle changing means 14b having the same configuration as the nozzle angle changing means 14a and the nozzle 10b thereof are attached to the support column 122, and the support column 122 has the right side follow-up portion 112 of the follow-up means 16 described later.
It is fixedly supported by b.

The detecting means 11 is adapted to detect a period during which the nozzle 10 is opposed to the greasing portions 21 and 22, and applies a force for opening the valve 12 to the valve 12 during the detecting period. As shown in FIGS. 2 and 3, it is composed of a detection body 41, a swing arm 42, an opening / closing drive unit 43, and the like. Two detectors 41 are provided on each of the slide blocks 2 of the kiln, one on the rear side of the reinforcing rib 5 in the kiln rotation direction (indicated by an arrow 44), and the other on the outer end with respect to the center of the kiln. Round rods are welded so that they are parallel to each other. Each of these detectors 41
Is a portion of the slide block 2 that is located at the outermost side with respect to the center axis of the kiln, and a tip thereof projects to the side opposite to the tire 3. Each of the detection bodies 41 is at a position equidistant from the center axis of the kiln so that the detection bodies 41 rotate together by the rotation of the kiln and draw the same rotation locus, and each detection body 41 has a gap between the slide blocks 2 on the rear side in the kiln rotation direction. The distance f to (see FIG. 1) is also the same.

As shown in FIGS. 2 and 3, the swing arm 42 has a base end portion swingably supported by a base body 20 by a shaft 45, and has a roller 46 at the tip end portion. The swing arm 42 supported by the base body 20 is in the rotation locus of the detection body 41 in which the roller 46 at the tip rotates, and swings in one direction to come into contact with the stopper at an initial position (indicated by a phantom line in FIG. 1). It is pulled by the tension spring 47 to the position shown. Swing arm 4
2 is driven by the detection body 41 by the rotation of the kiln and swings about the shaft 45 at angles θ0 and θ1.
When it comes to deviate from the trajectory of 1, the tension spring 47 returns to the initial position where it comes into contact with the stopper. Swing arm 4
The nozzle 10 is surely opposed to the greasing portion 21 while 2 is swinging by the angle θ1.

The valve 12 is a shot valve of a poppet type, which has an oil supply port 51 and an oil delivery port 52 in the valve body, and a driven portion 55 projects to the outer surface of the body. When pressed, the poppet valve body is driven to open the valve. When the pressing force of the driven portion 55 is released, the built-in return spring restores the original protruding state. The valve 12 is fixed to the base body 20, and the delivery port 52 is provided with a nozzle 10 via a greasing pipe 57, a three-way switching valve 56, and greasing pipes 57a and 57b.
a and 10b. Although not shown in detail, the three-way switching valve 56 is provided with a switching lever which is an air cylinder 54.
(See FIG. 3), the greasing conduit 57 is connected to the greasing conduit 57b by supplying compressed air to the air cylinder 54, and the greasing conduit 57 is discharged by exhausting air. Is connected to the greasing line 57a.

The open / close drive unit 43 is provided for the swing arm 42 and the driven unit 55, and is composed of a cam 58 and a one-sided lever 59, as shown in FIGS. . The cam 58 is provided coaxially with the shaft 45 at the base of the swing arm 42, and both are rotated by a predetermined angle (θ0 + θ2) by the swing of the swing arm 42. The one-sided lever 59 has a hook-like bent shape, has a roller 60 at its tip end which is in contact with the cam 58, and has a base portion swingably supported by a shaft 61 provided in the valve body, and the bent portion has an angle of about 90 degrees. From the state of (1) to a smaller angle, for example, about 45 ° can be bent by an articulated joint connected by a shaft, and a spring (not shown) is interposed so as to return to the state of 90 °. The shot valve 1 is between the bent portion of the one-sided lever 59 and the base portion.
The second driven portion 55 comes into contact with the protruding end of the driven portion 55.

The opening / closing drive unit 43 swings the cam 58 at an angle θ by swinging the swing arm 42 at an angle θ0 from the initial position.
After 0 rotation, the roller 60 is driven near the end of the rotation to swing the one-sided lever 59, the driven portion 55 is pressed, and the shot valve 12 opens. This swing arm 4
The position 2 (the position shown by the solid line in FIG. 1) is the valve opening position.
Next, when the swing arm 42 reaches a position rotated by a little smaller angle θ1, the roller 60 is disengaged from the cam 58 and the pressing of the driven portion 55 is released, and the shot valve 12 is released.
Closes. Then, when the angle θ1 is reached, the roller 46 is disengaged from the detection body 41. When the swing arm 42 swings by the angle θ1 and then returns to the original position, the roller 60 is pushed by the cam 58 again, but the bending portion of the one-sided lever 59 bends by receiving the component force in the bending direction, and the shot valve. 12 is designed not to open. That is, the configuration of this bent portion is such that the shot valve 12 does not open when the cam 36 rotates back.

The arm retracting means 13 is the swing arm 4 described above.
2 is provided with a retracting drive unit so as to rotate to a retracted position deviated from the rotation trajectory of the detection body 41. As shown in FIGS. 2 and 3, the structure is such that the cylinder portions 66 of both rod air cylinders 65 are fixed to the base body 20, one end 68 of the rod portion 67 is fixed to the cam 58 and the swing arm 42. A tension spring 70 is provided between the other end 69 of the rod portion 67 and an appropriate position of the cylinder portion 66 so as to oppose a rotation side portion 71 separated from the shaft center of a portion that rotates integrally with the shaft 45.
Is provided. The tension spring 70 is the tension spring 4 described above.
It is more powerful than 7. When compressed air is not being supplied to the air cylinder 65, the tension spring 70 causes the rod portion 67 to move forward so that the tip 68 of the rod portion 67 abuts against the rotating portion 71 and pushes it against the tension spring 47 to swing the arm 42.
Is rotated to an angle θ2 larger than the angle θ1, that is, to the retracted position, so that the roller 46 is surely deviated from the turning trajectory of the detection body 41. This state is the arm retracted state. When compressed air is supplied to the pressure chamber 72 of the air cylinder 65, the rod portion 6 is resisted against the tension spring 70.
7 is retracted and the tip 68 is separated from the rotating portion 71. At this time, the swing arm 42 returns to the angle θ2 by the tension spring 47, further returns to the angle θ0, and comes into contact with the stopper to stop. When the compressed air in the pressure chamber 72 is removed, the arm retracts due to the action of the tension spring 70. The angles θ0 and θ1
Is the arm operating position, and the angle θ1 is exceeded beyond the angle θ1.
The position moved to 2 is the arm retracted position.

When the swing arm 42 swings to the retracted position by the arm retracting means 13, the cam 58 is moved as described above.
Also rotates, so swinging in the range of angle θ0 + θ1 is
The valve 12 is opened like the rocking by 1, and the nozzle 10
There is a possibility that oil and fat will be ejected from the nozzle 12 even though the oil is not directed to the greasing portions 21 and 22. In order to prevent the oil and fat from being sprayed onto the portion other than the greasing portion, a device for interlocking with the arm retracting means 13 to stop the greasing when the arm is retracted is provided. As shown in FIG. 2, the greasing stop device includes a grooved cam 74 supported by a shaft 73 on the base body 20 side and a groove 75 of the grooved cam 74 provided on the rod portion 67 of both rod air cylinders 65. The engaging pin 76 and the drive unit 77 that drives the roller 60 of the one-sided lever 59 formed on the grooved cam 74 so that the one-sided lever 59 bends. As a result, when the rod portion 67 moves forward, the pin 76 rotates the grooved cam 74, and the rotation causes the drive portion 77 to move to the one-sided lever 59.
Is bent to prevent the one-sided lever 59 from opening by the cam 58. In the figure, 90, 9
The portions indicated by reference numerals 1 and 92 are heat shielding covers formed of a metal plate.

The rotary kiln expands and contracts in the axial direction due to, for example, temperature changes during operation (hot) and during stop (cold), and the greasing portion also moves in the expanding and contracting direction of the rotary kiln. For this purpose, a follow-up means 16 is provided. As shown in FIG. 1, the follower 16 includes a shaft 111 as a guide and left and right followers 112a, 112.
b and left and right rollers 113a and 113b.

Two shafts 111 are provided in parallel to each other, and these two shafts 111 are parallel to the axial direction of the shell 1 of the rotary kiln body (left and right directions in FIG. 1) and The column 114 is supported at a lower position and is fixed to the floor surface 115. Then, the left follower parts 112 a, 11 are attached to the two shafts 111.
2b is provided. The left side of the shell 1 shown in FIG. 1 is the upstream side of the kiln, and the right side is the downstream side.

As shown in FIG. 1, each of the left and right follow-up portions 112a and 112b is provided with two through holes 116, and a shaft 111 is inserted through each through hole 116. It is configured to be movable along the shaft 111 of. The left follower 112a is arranged on the left side of the tire 3, and the right follower 112b is arranged on the right side of the tire 3. Left and right follower units 112a, 11
2b are connected to each other via a connecting body, for example, a connecting plate 117. The left-hand follower 112a includes the above-mentioned base 2
Most of the shot valve unit 15 supported by 0, the first nozzle 10a, the detection means 11, the valve 12,
The arm retracting means 13 and the nozzle angle changing means 14a are provided, and the right following portion 112b is provided with the second nozzle 10b supported by the support column 122 and the nozzle angle changing means 14b. Therefore, these first and second nozzles 10a, 10
The valve unit 15 having b is always movable integrally with the follow-up part 112 along the two shafts 111 to the left and right in FIG. 119 shown in FIG. 1 is a dustproof cover.

As shown in FIG. 1, it comprises a left roller 113a and a right roller 113b. The left roller 113a is rotatable on the upper end of the left roller shaft 120a with a predetermined gap from the left side surface of the tire 3. It is provided in. The left roller shaft 120a is fixed to the upper surface of the connecting plate 117 in parallel with the left side surface of the tire 3 and toward the center axis of the shell 1. The right roller 113b is spaced apart from the right side surface of the tire 3 by a predetermined gap, and is located on the right roller shaft 120b.
It is rotatably provided at the upper end of the. This right side roller shaft 12
0b is fixed to the upper surface of the connecting plate 117 in parallel with the right side surface of the tire 3 and facing the central axis of the shell 1. The left and right rollers 113a, 113b are provided with a predetermined gap from the corresponding side surfaces of the tire 3 so that the rollers 113a, 11b are caused by the runout of the tire 3.
3b and the follow-up portions 112a and 112b having the rollers 113a and 113b move left and right each time the tire 3 makes one rotation so as not to shake. When the tire 3 moves in the right direction (or left direction) of FIG. 1 due to the shell 1 of the rotary kiln extending (or shortening) in the axial direction, the right side surface (or left side surface) of the tire 3 moves to the right roller 113b (or The follower parts 112a and 112b are moved by contacting the left roller 113a).

The rotary kiln slipper part greasing device thus constructed, for example, as shown in FIG. 3, is a pressurizing / quantitative supplying device 80 for oil and fat, a greasing pump 81, a compressed air source 82, a timer 83, etc. The control section 84 consisting of is used. In the figure, reference numeral 85 is an air pipe connected to the air cylinder 54 of the three-way switching valve 56, and 86a is a greasing pipe line and a greasing pump 81 and a pressurization / quantity supply device 8 for oil and fat.
0 is connected, 86b is a greasing pipe, which connects the pressurization / quantity supply device 80 of oil and fat and the supply port 51 of the shot valve 12, and 87 is an air pipe, which is the arm retracting means 13 Connected to the pressure chambers 72 of both rod cylinders 65, and 88 is an air conduit, which is the nozzle angle changing means 14
It is connected to the compressed air supply port of the cylinder 26 of a and 14b, and 89 is an air pipe, which is a pressurization and fixed amount supply device 8 for oil and fat.
Connected to 0.

The control section 84 is, for example, a greasing pump 8
No. 1 is activated when the pressure on the greasing line 86a side is lowered, and the timer 83 is set to lubricate once at a predetermined time of day. At that time, the compressed air source 82 is supplied. The compressed air from is supplied and discharged through a solenoid valve (not shown) with an appropriate time lag so that the greasing device performs one greasing operation.

At the greasing time, the greasing operation is performed as follows. Compressed air is delivered via air lines 85, 87, 88, 89. As a result, the three-way switching valve 56 performs a switching operation to connect the greasing pipe 57 to 57b, the compressed air is supplied to the pressure chambers 72 of the rod air cylinders 65, and the rod portion 67 retracts, so that the swing arm 42 moves. Swings from the retracted position to the operating position. Further, since compressed air is supplied to the pressure chamber of the cylinder 26, the nozzle angle changing means 14a, 14
The respective cylinders 26 of b are extended and the nozzles 10a,
The pointing direction of 10b is changed from the greasing portion 21 to 22, respectively. Further, since compressed air is supplied to the constant pressure supply device 80, the constant pressure supply device 80 is connected to the greasing pipeline 86b.
The oil and fat are pressurized and supplied. This state is
Is detected by the detection means 11 including the detection body 41 and the swing arm 42, for the greasing portion 22 that rotates around as the rotary kiln rotates.
During the detection period, the valve 12 is opened and the oil and fat is jetted and supplied from the nozzle 10a. After a predetermined amount of grease is supplied to the greasing portion 22 from the right side of the tire 3 in FIG. 1, the compressed air in the air duct 85 is discharged by the control unit 84, whereby the three-way switching valve 56 is switched. Te greasing line 57
Is connected to 57a, oil and fat are jetted and supplied from the nozzle 10a. The injection supply from the nozzle 10a is greasing from the left side of the tire 3 in FIG.

After a predetermined amount of grease has been supplied to the greasing portion 22 from the left side of the tire 3 in FIG.
As a result, compressed air is supplied again via the air pipeline 85, the three-way switching valve 56 connects the greasing pipeline 57 to 57b, and at the same time, the compressed air in the air pipeline 88 is discharged. Since the pressure in the pressure chamber of the cylinder 26 decreases due to the exhaust of the air conduit 88, the nozzle angle changing means 14a, 1 respectively.
The cylinder 26 of 4b is shortened by the action of the tension spring 40, and changes the directing direction of the nozzles 10a and 10b so as to be directed to the passing direction (arrows 30a and 30b) of the greasing portion 21. Therefore, subsequently, the greasing portion 21 is first greased from the nozzle 10b, and after a predetermined amount of greasing is carried out, the compressed air in the air conduit 85 is discharged by the control section 84, and three-way as described above. Since the switching valve 56 is switched and the greasing pipe 57 is connected to 57a, oil and fat is jetted and supplied from the nozzle 10a. Then, after a predetermined amount of greasing is performed, the compressed air in the air pipelines 87, 89 is discharged. As a result, the rod portion 67 of the double rod air cylinder 65 is
Moves forward to bring the swinging arm into the retracted state, the air pressure of the constant-pressure pressurizing and supplying device 80 disappears, and the pressure in the greasing pipe 85 decreases, so that the greasing pump 81 operates to fill the storage chamber with oil and fat. Finishes one greasing operation.

In the apparatus of this embodiment, the grease is supplied by the nozzles 10a and 10b provided on both sides of the tire 3,
Even if the tire 3 has a wide width, it is possible to reliably lubricate the greasing site. In this case, even if the greasing line 57b is long,
Since the check valve 32 is provided, it is possible to prevent jetting or dripping from the nozzle 10b due to expansion of the internal air after the supply of oil or fat to the nozzle 10b is stopped. Therefore, oil and fat can be supplied from one shot valve to two nozzles. Further, in the device of this embodiment, since the shot valve unit 15 follows the expansion and contraction of the kiln body 1 by the follow-up means 16, the relative positions of the nozzles 10a, 10b and the predetermined positions through which the greasing parts 21, 22 pass. Since there is no deviation, it is possible to continuously operate with the nozzle angle adjusted during installation, and there is no need to adjust the deviation of the nozzle angle due to expansion and contraction of the kiln. Further, in the device of this embodiment, the swing arm 42 can be retracted from the operating position driven by the detection body 41 to the retracted position not driven by the detection body 41, and compressed air is supplied to both rod air cylinders 65. Since the swinging arm 42 is held in the retracted position in a swinging state in the absence thereof, there is no idle portion when greasing is not performed. Therefore, even if the greasing device is a permanent type provided on a specific kiln support portion, unnecessary wear due to idle rotation is eliminated. Moreover, since the retracted position is maintained even if the compressed air is not continuously supplied, even when the compressed air source cannot supply the air, the operating position does not cause the oil and fat to be ejected. Further, since the nozzles 10a and 10b can be changed in direction, it is possible to lubricate the tire inner peripheral surface side and both side surfaces of the rotary kiln with a single greasing device. Further, when the swing arm 42 is swung to the retracted position, a device for stopping the greasing in association with the arm retracting operation is provided. Therefore, while the arm is retracting, the oil and fat is sprayed to a portion other than the greasing portion. There is nothing to do. Therefore, the vicinity of the greasing portion is not contaminated with the oil and fat, and the oil and fat is not wasted. Further, since this device can be remotely operated by air pressure, it can be automatically controlled by an appropriate control unit, and dangerous manual greasing work can be automated. In addition, this device is a pure mechanical device that can obtain an appropriate timing for opening and closing the shot valve 12 by the detection body 41, the swing arm 42, the cam 58, and the one-sided lever. It uses no parts, does not require electrical wiring, and has excellent heat resistance.

A second embodiment will be described with reference to FIGS. In this embodiment, the nozzle angle changing means 14a of the first nozzle 10a of the first embodiment is different, and the difference will be mainly described, and the same portions will be denoted by the same reference numerals and the description thereof will be omitted. .

Nozzle angle changing means 130 of this embodiment
Is configured to change the nozzle angle in conjunction with the opening / closing drive of the shot valve 12 by the rotational force when the swing arm 42 of the detection means 11 described in the first embodiment is swung by the detection body 41. The oil and fat are jetted and supplied to a wide range by changing the jetting direction of the nozzle during jetting.

The nozzle angle changing means 130 is a protruding shaft 13 formed by extending and pivoting the pivot of the bent portion of the one-sided lever 59 driven by the cam 58 provided on the swing arm 42.
1, a rotating member 132 driven by this shaft 131,
It is composed of a connecting rod 133 for transmitting the movement of the rotating member 132, a driven part 135 for rotating the nozzle which extends from the main body portion 134 of the nozzle 10a and is connected to the connecting rod 133, and the like. Projecting shaft 131, rotating member 132, connecting rod 133
Is a transmission mechanism that transmits the driving action of the cam 58 to the driven portion 135. As shown in FIGS. 6 and 7, the rotating member 132 is of a bell-crank shape and is rotatably supported by the main body of both rod air cylinders 65 by a shaft 136. One end of the rotating member 132 is a one-sided lever 59. Protruding shaft 131
Faces the protruding shaft 131 so as to be driven by the movement of the valve when the valve is opened, and the other end is connected to the lower end of the connecting rod 133 via a spherical bearing 137. The swing arm 42 in this embodiment is different in that the mounting position for the shaft 45 is provided at the shaft end opposite to that in the first embodiment. This is done in order to prevent the nozzle 10a from interfering with the detection body 41 because the nozzle 10a is provided close to the surface side of the shell 1 of the kiln as shown in FIG.

The main body portion 134 of the nozzle 10a has an oil / fat passage 138 therein, and is formed in a curved tube with a 90 ° bend in the middle so that the base end is rotatably connected to the greasing passage 57a.
The injection port 140 is connected to and supported through the other end, and the other end extends upward and extends at one end toward one side in a direction perpendicular to the bending surface of the bending. The driven portion 135 for rotating the main body portion 134 is provided in the vicinity of the bent portion from the nozzle 10a.
It is formed by extending in a direction substantially opposite to the jetting direction.
The upper end of the connecting rod 133 is connected to the tip of the driven part 135 via a spherical bearing 141. Reference numeral 142 in FIGS. 6 and 7 denotes a tension spring, which is a return spring for returning to the original position after being driven to change the nozzle angle.

As shown in FIG. 5, the upper end of the nozzle 10a is close to the surface of the shell 1 of the kiln body, and the directing direction is toward the greasing portion 22, but directly toward the inner surface 3a of the tire 3. There is. When the nozzle angle changing means 130 is not operating, the nozzle 10a is directed toward the back of the greasing portion 21 as indicated by an arrow 125, and the nozzle angle changing means 130 operates to change the angle. As shown by an arrow 126, it is toward the front side of the greasing site. The direction indicated by the arrow 125 of the nozzle 10a is
Determine so that no oil or fat will come out on the other side when the oil or fat is jetted and supplied. In addition, the nozzle angle changing means 130 includes the nozzle 10a.
Swing arm 4 provided only on the side of the base body 20 provided with
The other nozzle 10b is driven by the swinging of No. 2
Not provided in. The nozzle 10b provided on the opposite side of the tire 3 is exactly the same as that in the first embodiment. Since the angle is changed by the nozzle angle changing means 14b of the air cylinder 26, the air pipe 88 shown in FIG. 9 is connected only to the air cylinder 26 of the nozzle angle changing means 14b.

Another difference from the first embodiment is that the valve opening characteristic of the shot valve 12 and the shape of the cam 58 are slightly different. When the valve 12 is opened, the driven portion 5
5, the valve is opened at the beginning of the full stroke, and the driven portion 55
Is pushed in even after the valve is opened. Also,
The cam 58 has a shape in which the outer peripheral surface has a slightly increased radius in the rotational direction during valve opening drive. With this configuration, the cam 5
8 drives the one-sided lever 59, even if the driven portion 55 is gradually pushed in by the rotation, the valve is opened in the initial stage, and the rotating member 132 is gradually rotated to gradually rotate the nozzle 10.
The pointing angle of a is gradually changed.

The rotary kiln slipper section greasing device thus constructed has, for example, as shown in FIG. 9, a pressurizing and quantitative feeding device 80 for oil and fat, which is substantially the same as that of the first embodiment.
A greasing pump 81, a compressed air source 82, and a control unit 84 including a timer 83 are provided and used. In the figure, reference numeral 85 is an air pipe connected to the air cylinder 54 of the three-way switching valve 56, and reference numeral 86a is a greasing pipe line connecting the greasing pump 81 and the pressurizing / quantitative supply device 80 of oil and fat. , 86b is a greasing conduit connecting the pressurizing / quantitative supply device 80 of oil and fat and the supply port 51 of the shot valve 12, and 87 is an air conduit which is a rod cylinder 65 of the arm retracting means 13.
Of the nozzle angle changing means 14b is connected to the compressed air supply port of the cylinder 26 of the nozzle angle changing means 14b, and 89 is an air conduit of which pressurized and constant amount of oil and fat is supplied. It is connected to the device 80.

At the greasing time, the greasing operation is performed as follows, for example. Compressed air is delivered via air lines 85, 87, 88, 89. As a result, the three-way switching valve 56 performs a switching operation to connect the greasing pipe 57 to 57b, the compressed air is supplied to the pressure chambers 72 of the rod air cylinders 65, and the rod portion 67 retracts, so that the swing arm 42 moves. Swings from the retracted position to the operating position. Further, since the compressed air is supplied to the pressure chamber of the cylinder 26, the nozzle angle changing means 14b.
The cylinder 26 is expanded, and the direction of the nozzle 10b is changed from the greasing portions 21 to 22. Further, since compressed air is supplied to the constant pressure pressurization supply device 80, the constant pressure pressurization supply device 80 enters a state in which oil and fat are pressurized and supplied to the greasing conduit 86b. In this state, the nozzle 10a side is in a greasing state for the greasing portion 21, the nozzle 10b side is in a greasing state for the greasing portion 22, and the greasing portion 22 is rotated with the rotation of the rotary kiln. This is the detector 4
The detection means 11 by 1 and the swing arm 42 detects and the valve 12 is opened during the detection period to inject and supply the oil and fat from the nozzle 10b. After the greasing from the right side (not shown in the figure) of the tire 3 in FIG. 6 to the greasing portion 22 is performed by a predetermined amount, the control unit 84 discharges the compressed air in the air pipe line 88, whereby the nozzle. The orientation direction of 10b is changed from the greasing portion 22 to 21. Then, after the greasing portion 21 is greased from the right side by a predetermined amount, the control unit 84 discharges the compressed air in the air conduit 85, whereby the three-way switching valve 56 is switched and the greasing conduit 57 is formed. Since it is connected to 57a, oil and fat is jetted and supplied from the nozzle 10a.

The injection supply from the nozzle 10a is the greasing from the left side of the tire 3 in FIG.
The angle is changed during the injection of oil. That is, the shot valve 12 swings (θ0 + θ1) of the swing arm 42 that detects the greasing portion, so that the shot valve 12 causes the cam 58 and the one-sided lever 59.
When the valve is driven and opened by the nozzle 10a
Nozzle angle changing means 14a is driven by the protruding shaft 131 of the one-sided lever 59 to rotate the rotating member 132 and the connecting rod 1.
The driven portion 135 is driven via 33 to change the directivity direction of the nozzle 10a from the direction of arrow 125 to the direction of arrow 126. More specifically, the nozzle angle begins to change after the shot valve 12 opens, and when the shot valve 12 closes, it is in the direction of arrow 126. Therefore,
For this reason, the shape of the cam 58 is such that the driven portion 55 is continuously pushed in even after the shot valve 12 is opened. When the swing arm 42 is released from the detection body 41 and returns, the valve 12 is closed because the one-sided lever 59 has released the driving force, and the direction of the nozzle 14a is in the direction of the arrow 25. Is returning. By repeating this operation, a predetermined amount of greasing is completed.

After the predetermined amount of greasing is performed, the control unit 84 discharges the compressed air in the air ducts 87 and 89. As a result, the rod portion 67 of both rod air cylinders 65 moves forward to bring the swinging arm into the retracted state, the air pressure of the constant pressure supply device 80 is lost, and the pressure in the greasing pipeline 85 decreases, so that the greasing pump 81. Is operated to fill the storage chamber with oil and fat, and one greasing operation is completed.

In the second embodiment, the changed angular range of the nozzle 10a may be widened to include the greasing portion 22. As a result, it is possible to lubricate the inner surface 3a and both side surfaces of the tire 3. In the second embodiment, the nozzle 10
b may be provided as a fixed angle injection nozzle that does not have an angle changing means, and is directed toward the greasing portion 21. This is a configuration in which only the inner surface 3a of the tire is lubricated from both sides. Separately, since the nozzle 10a in the second embodiment can change the nozzle angle during injection and can replenish grease over a wide range, the tire 3 having a relatively narrow width can be replenished with grease only from one side. In some cases, the nozzle 10b and its angle changing means 14b may be used.
The configuration may be omitted. In the first and second embodiments, the three-way switching valve 56 is switched by the air cylinder 54. However, in the case where the control unit 84 is simplified or manually controlled, the three-way switching valve 5 is used.
6 may be manually operated. In short, it is preferable to select and use the oil according to the situation of the site where the greasing is performed.

In the second embodiment, the rotating member 13
2 shows the interlocking mechanism that is driven by the cam 58 via the one-sided lever 59 and its protruding shaft 131, but in some cases, another cam may be provided on the shaft 45 to drive the rotating member 132. Good. In that case, since the valve 12 and the angle changing means 130 can be driven separately, it is possible to respectively perform preferable operations.

The device of the second embodiment has substantially the same effects as the device of the first embodiment. The nozzle angle changing means 130 can change the nozzle angle during the oil and fat injection and can replenish the oil over a wide range. Therefore, one nozzle can handle the entire width of the inner surface of one tire. .

[0050]

According to the invention described in claim 1, the three-way switching valve is switched to change the first greasing section from one greasing section to one side of the tire.
Since you can lubricate with the nozzle and the second nozzle on the other side,
A device capable of supplying grease from both sides of the tire can be formed in one unit, and it is possible to supply grease to the inner surface of the tire of a wide tire with one unit. And one valve (shot valve), a detection means, and a greasing part
Since it can be used for both the nozzle and the second nozzle, the cost of the device can be reduced. According to the invention as set forth in claim 2, since it does not spray or drip onto a portion that does not require greasing,
It is possible to prevent the surroundings from being soiled by oil and fat.

According to the third aspect of the present invention, since the spraying position of the oil and fat spreads in the width direction of the tire,
It becomes possible to lubricate more widely due to the surface requiring lubrication, and when the tire width is not so wide, it is possible to lubricate the entire tire inner surface width of one tire. According to the invention described in claim 4, it is possible to surely match the timing of opening the valve and the timing of changing the angle. According to the invention described in claim 5, since there are few failures due to heat, the durability is excellent.

[Brief description of drawings]

FIG. 1 is a partially omitted front view showing a schematic configuration of a first embodiment of the present invention.

FIG. 2 is an enlarged side view of a main part of the embodiment.

FIG. 3 is a block diagram showing a schematic configuration of a shot valve unit of the embodiment and an example of use thereof.

FIG. 4A is an enlarged vertical sectional view of a nozzle portion of the same embodiment,
(B) is an AA sectional view of (a).

FIG. 5 is a partially omitted front view showing a schematic configuration of a second embodiment of the present invention.

FIG. 6 is an enlarged side view of a main part of the embodiment.

FIG. 7 is an enlarged view of a main part of FIG.

8 is a front view corresponding to FIG. 7. FIG.

FIG. 9 is a nozzle 1 of the shot valve unit of the embodiment.
It is a block diagram which shows the schematic structure of the part which abbreviate | omitted the 0b side, and its usage example.

FIG. 10 is a schematic cross-sectional view taken along the axis perpendicular to the tire of the rotary kiln to which the first and second embodiments of the present invention are applied.

[Explanation of symbols]

 1 Rotary Kiln Main Body 2 Slide Block 3 Tire 3a Tire Inner Surface 4 Roller 5 Reinforcing Rib 10a Nozzle 10b Nozzle 11 Detection Means 12 Valve (Shot Valve) 13 Arm Retracting Means 14a Nozzle Angle Changing Means 14b Nozzle Angle Changing Means 16 Tracking Means 20 Base 21 Greasing Part (Inner Surface of Tire) 22 Greasing Part (Tire Side) 26 Air Cylinder 32 Check Valve 33 Opening Pressure Setting Spring 41 Detecting Body 42 Swing Arm 47 Tension Spring 56 Three-way Switching Valve 57 Greasing Pipeline (Feeding) (Oil passage) 58 Cam 59 One-sided-81 Greasing pump 130 Nozzle angle changing means 131 Projecting shaft 132 Rotating member 133 Connecting rod

Claims (5)

[Claims] 1. A detection unit for detecting a greasing portion between slide blocks of a rotary kiln, a first nozzle directed to the greasing portion from one side of a tire, and a pump connected to the first nozzle and supplying grease. And a valve provided between the first nozzle and the pump for opening and closing a detection signal of the detection means, the rotary kiln slipper part greasing device having a greasing part. A three-way valve is provided between the valve and the valve, a second nozzle directed toward the greasing portion between the slide block on the opposite side of the first nozzle to the tire is provided, and the second nozzle is connected to the three-way switching valve. , The valve side is the first nozzle and the second
A greasing device for a rotary kiln slipper, which is configured to be switchably connected to a nozzle. 2. The rotary kiln slipper part greasing device according to claim 1, wherein a direction from the valve to the injection port near the injection port between the injection port of the second nozzle and the valve is a forward direction. A rotary kiln slipper greasing device, wherein a check valve is provided and the valve opening pressure of the check valve is set to be slightly lower than the supply pressure supplied from the pump. 3. A detection means for detecting a greasing portion between slide blocks of a rotary kiln, a nozzle directed to the greasing portion from a side of a tire, a pump connected to the nozzle and supplying oil and fat, In a rotary kiln slipper greasing device having a greasing unit that is provided between a nozzle and the pump and that opens and closes by receiving a detection signal of the detection means, during a period in which the nozzle injects oil and fat, A rotary kiln slipper greasing device comprising nozzle angle changing means for changing the position of the nozzle pointing along the axial direction of the rotary kiln. 4. The rotary kiln slipper part greasing device according to claim 3, wherein the detection means is a swing arm that is swung by the swing of the slide block, and is based on the swing of the swing arm. The nozzle angle changing means is configured to open and close the valve.
Supports the nozzle so that the pointing direction of the nozzle can be changed,
A structure is provided in which a transmission mechanism that is connected to the nozzle side and that transmits a force that changes the nozzle angle is provided, and an interlocking unit that operates the nozzle angle changing unit in conjunction with the opening / closing drive of the valve is provided. A rotary kiln slipper unit greasing device. 5. The rotary kiln slipper part greasing device according to claim 4, wherein the interlocking device opens and closes the valve and changes a nozzle angle by a cam provided on a swing center shaft of the swing arm. A greasing device for a rotary kiln slipper, which is configured to give an acting force.