JPH074427U - Greasing device - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] Even when the driving force of the device that greases while following a moving object such as a chain conveyor disappears, the device is prevented from being damaged. In a greasing device, a rolling wheel 21 that rotates in the traveling direction of the moving body 2 is provided on the moving body 2 at the other end side of an engaging body 14 with which one end side abuts. Two
1 is penetrated through the moving base 8 and is looked on the base, and the base has an emergency disengagement with a slope length that holds a moving distance for releasing the engagement between the engaging body 14 and the moving body 2. The member 23 is fixed, and the emergency disengagement member 23 moves on the slope of the rolling wheel 21 in an emergency when the movable table 8 has moved a predetermined distance or more in the traveling direction of the moving body 2. A greasing device, characterized in that it is fixed at a position where the combination 14 is moved to release the engagement with the moving body 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a greasing device for supplying a lubricating oil such as grease to a greasing port such as a grease nipple installed in a connected rotating portion of a moving body such as a chain or trolley in a chain conveyor or a trolley conveyor. .

[0002]

[Prior art]

 In the conventional greasing device, for example, as described in Japanese Utility Model Publication No. 60-5199, a guide bar of a greasing device main body including a guide bar, a greasing nozzle, etc. is brought into contact with a moving body, While moving the body of the greasing device together with the moving body, project the greasing nozzle to engage the grease nipple of the moving body, and pump lubricating oil such as grease from the greasing nozzle into the grease nipple. It was a composition.

However, with such a conventional configuration, when the meandering of the moving body along the direction orthogonal to both the moving direction of the moving body and the protruding direction of the greasing nozzle is large, the greasing nozzle and the greasing device main body are large. However, there was the inconvenience that the greasing device could be damaged due to unreasonable force. As a result of the unreasonable force acting on the greasing nozzle in this way, even if the greasing nozzle is not damaged, the axis of the greasing nozzle shifts so that it does not match the axis of the grease nipple, and There was the inconvenience that it was not possible to accurately engage the nipple and it became impossible to lubricate.

Therefore, in order to solve these problems, the applicant of the present invention has proposed the one disclosed in Japanese Utility Model Publication No. 4-43675. According to this greasing device, all the problems of the above conventional device are solved. However, if the driving force of the drive unit disappears or decreases due to some reason, the engagement between the engaging body and the moving body is not released, and the moving base tries to move beyond the movement limit. However, there is a disadvantage that the moving body or the greasing device is damaged.

As a solution to the above-mentioned inconvenience, the present applicant has proposed the one disclosed in Japanese Utility Model Application Laid-Open No. 1-12108, which is good as long as the moving speed of the moving body is low (approximately 5 m / min or less). However, at higher speeds (approximately 20 m / min or less), the inertial force of the moving base increases, so even if the engagement between the engaging body and the moving body is released, the moving base moves immediately without stopping, resulting in There is an inconvenience that the greasing device is damaged by colliding with the stand of the emergency disengagement unit.

[0006]

[Problems to be solved by the device]

 The present invention is to provide a greasing device capable of surely releasing the engagement between the engaging body and the moving body from the low speed to the high speed range even if the driving force of the driving device disappears or decreases. .

[0007]

[Means for solving the problem]

 The present invention provides a movable table which is guided by a guide body and can reciprocate a predetermined distance in parallel with the movable body, and is installed on the movable table so as to be able to move in and out, and can contact the movable body from the front side in the traveling direction. An engaging body, a greasing nozzle that is installed on the movable table so as to be able to move in and out and is capable of engaging with a greasing port of the movable body; and a moving unit that moves the movable table in a direction opposite to the traveling direction of the movable body No. 1 drive device, a second drive device installed on the movable table to drive the engagement body, and a third drive device installed on the movable table to drive the greasing nozzle. In the greasing device, a rolling wheel that rotates along the traveling direction of the moving body is installed on the other end side of the engaging body with which one end abuts, and this rolling wheel passes through the moving base to form a base. A slope with a moving distance to release the engagement between the engaging body and the moving body. The emergency disengagement member is fixed so that the rolling wheel rides on its slope in an emergency when the moving base moves a predetermined distance or more in the traveling direction of the moving body. The greasing device is characterized in that the greasing device is moved, and thereby the engaging body is moved to be fixed at a position where the engagement with the moving body is released.

[0008]

[Effect] During an emergency when the operating table has moved a predetermined distance or more in the traveling direction of the moving body, the rolling wheels installed on the engaging body ride on the slope of the emergency engagement releasing member and move, so that the engaging body moves from the moving body. It moves in the disengagement direction, whereby the engagement between the engaging body and the moving body is released.

[0009]

【Example】

 1 to 4, FIG. 1 is a plan view of a greasing device in one embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, and FIG. 3 is a line III-III in FIG. FIG. A chain conveyor 1 is provided with a chain ring 2 as a moving body at a predetermined pitch of, for example, 625 mm, and each chain ring 2 is provided with a grease nipple 3 as a greasing port. There is. The chain ring 2 advances in the direction of arrow A in FIG. 1 on a rail 4 fixed to a frame (not shown) at a speed of 16 m / min, for example.

A base 5 is horizontally installed on the side of the chain conveyor 1. On the base 5, a pair of round bar-shaped guide bodies 7 whose both ends are fixed by a supporting tool 6 are provided. Are installed in parallel with the chain conveyor 1. These guides 7 guide the movable base 8. A plurality of brackets slidably fitted around the outer periphery of the guide 7 are provided on the lower surface of the plate-shaped movable base 8 parallel to the base 5. 9 is fixed. An air cylinder device 10 is installed on the base 5 as a first drive device that expands and contracts in parallel with the traveling direction of the chain ring 2. The piston rod of the air cylinder device 10 is fixed to the lower surface of the moving base 8. Is connected to the bracket 11.

A pair of guide plates 13 are fixed on the movable table 8, and the guide plates 13 guide the engagement body 14 in a horizontal direction orthogonal to the traveling direction of the chain ring 2. An air cylinder device 15 as a second drive device that expands and contracts in the horizontal direction orthogonal to the traveling direction of the chain ring 2 is installed on the moving table 8, and the piston rod 15a of the air cylinder device 15 is It is connected to a contact portion 14b with a chain ring provided on one end side 14a of the engaging body 14. Reference numeral 16 is a bellows-shaped dustproof cover.

On the moving table 8, as a third drive device that extends and contracts in the horizontal direction orthogonal to the traveling direction of the chain ring 2 behind the air cylinder device 15 in the traveling direction of the chain ring 2. An air cylinder device 17 is installed. The air cylinder device 17 is installed by a pin 18 on the rear end side and a spring 19 on the front side so as to be swingable in a horizontal direction orthogonal to the traveling direction of the chain 2. A greasing nozzle 20 engageable with the grease nipple 3 is connected to a piston rod of the air cylinder device 17. Reference numeral 17a is a bellows-shaped dustproof cover.

The center of the greasing nozzle 20 and the center of the grease nipple 3 are adjusted by the spring 19 so that they coincide with each other at the time of engagement, and the positional relationship with the contact portion 14b of the engaging body 14 is set. ing. Further, the pin 18 and the spring 19 can follow the vertical displacement of the center of the grease nipple during movement. A holding body 22 is fixed to the other end 14c of the engaging body 14, and a rolling wheel 21 is pivotally supported by a pin 22a so that the rolling wheel 21 can rotate along the traveling direction of the chain ring 2. The holding body 22 and the rolling wheels 21 are configured to be movable within the notched elongated holes 8a of the moving base 8 by an amount corresponding to the stroke of the air cylinder device 15, and the rolling wheels 21 do not come into contact with the moving base 8. It is located on table 5.

Reference numeral 23 denotes an emergency disengagement member fixed on the base 5, and the engagement body 14 forcibly disengages from the chain ring 2 when the rolling wheels ride on and move. It has a slope 23 a that can be moved in the direction (stroke direction of the air cylinder device 15). The slope length and the inclination angle thereof are set so that a stroke S or more, which is sufficient for the contact portion 14b of the engagement body 14 to be disengaged from the chain ring 2, can be secured as the movement distance S1 of the rolling wheels 21. . The emergency disengagement member 23 is fixed at a position corresponding to an emergency when the movable table 8 has moved on the guide body 7 by a predetermined distance or more. Numeral 24 is a buffer spring fitted in the guide body 7 to absorb the inertial force of the movable table 8 in an emergency.

FIG. 4 is an explanatory view of the air piping of the greasing device. In the vicinity of the air cylinder device 10, a limit switch for detecting the position of the piston rod of the air cylinder device 10, that is, the position of the movable table 8. 30a and 30b are installed in this order from the rear side to the front side in the traveling direction of the chain ring 2. Compressed air is supplied to the air cylinder device 10 from an air source having a pressure of at least 5 kg / cm ² via a solenoid valve 25, and the air cylinder device 15 is connected to a solenoid valve 26 from the air source. Compressed air is supplied via. Compressed air is supplied to the air cylinder device 17 from the air source via a solenoid valve 27. When the electromagnetic valve 25 is off, compressed air is not supplied to the air silling device 10. When the electromagnetic valve 26 is off, compressed air is supplied to the air cylinder device 15 in the direction in which the piston rod retracts. Supplied. When the solenoid valve 27 is off, compressed air is supplied to the air cylinder device 17 in the direction in which the piston rod retracts.

Grease is supplied to the greasing nozzle 20 from, for example, a plunger type one-shot pump 28 whose discharge amount can be varied within a range of 1 to 4 cc per stroke. The discharge pressure of the plunger type one-shot pump 28 is, for example, about 40 to ²⁰⁰ kg / cm ² , and compressed air for driving is supplied from the air source via the electromagnetic valve 29. When the solenoid valve 29 is off, compressed air for driving is not supplied to the plunger type one-shot pump 28. The solenoid valves 25, 26, 27, 29, the plunger type one-point pump 28, etc. are mounted in a storage box (not shown) and driven by an electric control panel (not shown).

Next, the operation will be described. In the initial state, the piston rod of the air cylinder device 10 is retracted, the movable table 8 is located at the position shown in FIG. 1, and the limit switch 30a is on. When the chain ring 2 advances in the direction of arrow A in FIG. 1 and the front surface of the chain ring 2 comes into contact with the abutting portion 14b of the engagement body 14, the movable table 8 is pulled by the chain ring 2 and is integrated with the chain ring 2. Moving. As a result, the piston rod of the air cylinder device 10 is also forcedly extended, and the limit switch 30a is turned off. When the limit switch 30a is turned off, a timer (not shown) is activated. When 0.1 to 0.2 seconds has elapsed after the limit switch 30a was turned off, the solenoid valve 27 is turned on and the piston rod of the air cylinder device 17 is extended. , The greasing nozzle 20 moves toward the grease nipple 3 and engages with the grease nipple 3.

When 0.3 to 0.5 seconds elapses after the limit switch 30a is turned off, the solenoid valve 29 is turned on and the plunger type one-shot pump 28 discharges a predetermined amount of grease. It is injected into the grease nipple 3 from 20. This is how the greasing was done. When the movable table 8 moves a predetermined distance together with the chain ring 2 and the limit switch 30b is turned on, the solenoid valve 27 is turned off and the piston rod of the air cylinder device 17 is retracted, so that the greasing nozzle 20 moves from the grease nipple 3 to the grease nipple 3. It moves away from the grease nipple 3 and moves away from it. Further, when the limit switch 30b is turned on, a timer (not shown) is activated. When 0.2 to 0.3 seconds has elapsed after the limit switch 30b was turned on, the solenoid valve 26 is turned off and the piston rod of the air cylinder device 15 is retracted. Then, the engagement body 14 moves in the direction away from the chain ring 2 and separates from the chain ring 2, and the movable table 8 stops.

When 0.4 to 0.5 seconds elapses after the limit switch 30b is turned on, the solenoid valve 25 is turned on, the piston rod of the air cylinder device 10 is retracted, and the movable table 8 moves in the traveling direction of the chain ring 2. It moves in the opposite direction and returns to the original position shown in FIG. As a result, the limit switch 30a is turned on, the solenoid valve 25 is turned off to stop the supply of compressed air to the air cylinder device 10, and the solenoid valve 26 is turned on to extend the piston rod of the air cylinder device 15. The engaging body 14 moves toward the chain conveyor 1 and comes into contact with the front surface of the next chain ring 2. With the above, one cycle of the greasing operation is completed, and the system waits until the arrival of the next chain ring 2. The time required for this one cycle is, for example, about 1 to 3 seconds.

Here, for example, when the supply air pressure is reduced or the vinyl hose connecting the solenoid valve 26 and the air silling device 15 is pulled out, and the driving force of the air silling device 15 is reduced or disappears, Since the piston rod of the air cylinder device 15 does not contract, the engagement between the engagement body 14 and the chain ring 2 is not released, and the movable table 8 moves beyond the predetermined range.

Then, the rolling wheels 21 provided on the engaging body 14 ride on the slope 23 a of the emergency engagement releasing member 23. Further, the movable table 8 moves, and the rolling wheels 21 move on the slope 23a, whereby the engagement between the engagement body 14 and the chain ring 2 is released, and the movement of the movable table 8 is stopped. Even if the inertial force causes an overrun, it is sufficient that the guide body 7 has a length that allows it to be overrun, and the buffer 24 can be further buffered to shorten the length of the guide body 7.

[0022]

[Effect of device]

 As described above, according to the present invention, the engaging wheel 14 that engages with the chain ring 2 is provided with the rolling wheels 21, and the emergency stand installed on the base 5 is installed in an emergency when the movable table 8 moves a predetermined distance or more. Since the engagement between the chain ring 2 and the engaging body 14 is forcibly released by riding on the slope of the engagement release member and moving, the chain moving speed is high, and the moving table is not moved even if the inertial force is increased. Since there is no object to collide with, there is an effect that the problem of collision and damage as in the conventional example can be eliminated.

[Brief description of drawings]

FIG. 1 is a plan view of a greasing device of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a sectional view taken along the line III-III in FIG.

FIG. 4 is an explanatory view of an air pipe of the greasing device of the present invention.

[Explanation of symbols]

 2 Chainring (moving body) 3 Grease nipple (greasing port) 7 Guide body 8 Moving stand 10 Air cylinder device (first drive device) 14 Engaging body 15 Air cylinder device (second drive device) 17 Air cylinder device (Third drive device) 20 Greasing nozzle 21 Rolling wheel 23 Emergency engagement body releasing member

Claims (1)

[Scope of utility model registration request] A movable table which is guided by a guide body and is capable of reciprocating a predetermined distance in parallel with the movable body;
A greasing nozzle which is installed on the moving table so as to be able to move in and out and which can be engaged with a greasing port of the moving body; and a first driving device which moves the moving table in a direction opposite to a traveling direction of the moving body. A greasing device provided with a second driving device which is installed on the moving table and drives the engaging body, and a third driving device which is installed on the moving table and drives the greasing nozzle. , A rolling wheel that rotates along the traveling direction of the moving body is installed on the other end side of the engaging body with which one end side abuts, and this rolling wheel penetrates the moving base and is placed on the base. The emergency disengagement member having a slope length that maintains a moving distance for disengaging the engagement body and the moving body is fixed to the base, and the emergency disengagement member is In an emergency when the moving table has moved a predetermined distance or more in the traveling direction of the moving body, the rolling wheels move on their slopes. A greasing device, characterized in that the greasing device is mounted on and moved to a position where it is disengaged.