JP2007255701A - Lubricating oil supply device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lubricating oil supply device for preventing the occurrence of an error between an estimated replacement timing and an actual replacement timing. <P>SOLUTION: When a bottom portion 20C of a cartridge 12 closes the opening of a cylindrical part 24, the bottom portion 20c of the cartridge 12 has contact with the upper end of a contact sensor 25. Thus, the contact sensor 25 detects that the bottom portion 20C of the cartridge 12 closes the opening of the cylindrical part 24. When the contact sensor 25 detects that the bottom portion 20C of the cartridge 12 closes the opening of the cylindrical part 24, predetermined alarm sounds are output from an information part 27. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a lubricating oil supply device that supplies lubricating oil such as oil or grease to a lubricating part of an industrial machine, for example.

A conventional lubricating oil supply apparatus includes a cartridge filled with lubricating oil such as oil or grease. Lubricating oil filled in the inside of the cartridge is supplied to a predetermined lubricating site through a valve (such as a single metering valve and a progressive metering valve) by the action of a pump constituting the lubricating oil supply device. The cartridge also has a bellows portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and the bellows portion is axially arranged as the capacity of the internal lubricating oil decreases. It has come to shrink. In this lubricating oil supply apparatus, the replacement timing of the cartridge is estimated by counting the number of shots of a valve (such as a single metering valve and a progressive metering valve). Then, when the estimated cartridge replacement timing is a predetermined timing, for example, a buzzer sounds, a lamp is lit, or a notification is displayed on the control panel. Thereby, the user can easily determine that it is the replacement timing of the cartridge, and can replace it with a new cartridge.
JP 2003-95355 A JP 2002-323196 A

  By the way, in the method of estimating the cartridge replacement timing by counting the number of shots of a valve (such as a single metering valve and a progressive metering valve), there is an error between the estimated replacement timing and the actual replacement timing. May occur. If an error occurs, more than the specified amount of lubricant may still remain inside the cartridge, or the pump may continue to run without being noticed even though all of the lubricant in the cartridge has been exhausted. It was a situation.

  In view of the above circumstances, an object of the present invention is to provide a lubricating oil supply device that can prevent an error from occurring between an estimated replacement timing and an actual replacement timing.

  The invention according to claim 1 has a bellows portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and the axial direction is accompanied with the use of the lubricating oil filled therein. A connecting portion having an opening that is closed by the bottom of the cartridge when the cartridge is attached and the bellows portion is most contracted, and the cartridge is attached to the connecting portion. A lubricating oil supply apparatus having a pump for supplying lubricating oil filled therein to a supply site through the opening, wherein the opening is closed by the bottom of the cartridge at the connection portion A detection unit for detecting this is provided.

  According to the first aspect of the present invention, in a state where the cartridge filled with the lubricating oil is mounted in the opening of the connecting portion, the lubricating oil inside is supplied to each supply site through the opening by the action of the pump. Supplied. As the lubricating oil inside the cartridge decreases, the cartridge shrinks in the axial direction, and the bottom of the cartridge eventually closes the opening of the connecting portion.

  Here, since the connection portion is provided with a detection portion that detects that the opening portion is closed by the bottom portion of the cartridge, for example, by providing a notification portion that notifies the detection, the bottom portion of the cartridge The user can be surely notified that the opening is closed. Accordingly, the user can surely know that the lubricating oil filled in the cartridge has disappeared. Furthermore, since the detection part is provided on the connection part side, even when the cartridge is replaced with a new one, it is not necessary to provide the detection part in the new cartridge. As a result, it is not necessary to attach the detection unit when the cartridge is replaced, and the work efficiency of the cartridge replacement can be improved.

  The invention according to claim 2 has a bellows portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and the axial direction is accompanied by the use of the lubricating oil filled therein. A connecting portion having an opening that is closed by the bottom of the cartridge when the cartridge is attached and the bellows portion is most contracted, and the cartridge is attached to the connecting portion. A lubricating oil supply apparatus having a pump for supplying lubricating oil filled therein to a supply site via the opening, wherein the bottom of the cartridge immediately before the opening is closed on the connecting portion The above-mentioned bottom part is provided with a detecting part.

  According to the second aspect of the present invention, in a state where the cartridge filled with the lubricating oil is mounted in the opening of the connecting portion, the lubricating oil inside is supplied to each supply site via the opening by the action of the pump. Supplied. As the lubricating oil inside the cartridge decreases, the cartridge shrinks in the axial direction, and the bottom of the cartridge eventually closes the opening of the connecting portion.

  Here, since the connection portion is provided with a detection portion that detects the bottom portion of the cartridge immediately before the bottom portion of the cartridge closes the opening portion, for example, by providing a notification portion that notifies the detection, the cartridge The user can be surely informed immediately before the opening is closed by the bottom of the. As a result, the user can know the replacement timing with a margin before the lubricant filled in the cartridge runs out. Furthermore, since the detection part is provided on the connection part side, even when the cartridge is replaced with a new one, it is not necessary to provide the detection part in the new cartridge. As a result, it is not necessary to attach the detection unit when the cartridge is replaced, and the work efficiency of the cartridge replacement can be improved.

  According to a third aspect of the present invention, in the lubricating oil supply device according to the first or second aspect, the detection unit is a sensor that detects contact with the cartridge.

  According to the third aspect of the invention, since the sensor detects that the detection unit has come into contact with the cartridge, for example, an existing contact sensor can be used as it is. As a result, it is possible to easily know the replacement timing of the cartridge by a simple method of simply attaching the existing contact sensor.

  In this specification, “the detection unit comes into contact with the cartridge” means to include the case where the detection unit comes into contact indirectly with the lubricant attached to the bottom of the cartridge in addition to the case where the detection unit directly contacts the cartridge. is there.

  According to a fourth aspect of the present invention, in the lubricating oil supply apparatus according to any one of the first to third aspects, the detection unit is disposed radially inward of the opening. .

  According to the fourth aspect of the present invention, since the detection unit is disposed on the radially inner side of the opening, regardless of the size of the cartridge, when the opening is closed by the bottom of the cartridge, or the opening is Immediately before being clogged, the detection unit reliably contacts the bottom of the cartridge. Thereby, it is possible to reliably notify the user of the replacement timing of the cartridge.

  According to a fifth aspect of the present invention, in the lubricating oil supply apparatus according to any one of the first to third aspects, the detection unit is disposed on the radially outer side of the opening. .

  According to the fifth aspect of the present invention, since the detection unit is disposed on the radially outer side of the opening, the lubricant does not adhere to the detection unit. Accordingly, the detection unit does not break down due to contact with the lubricating oil, and the detection unit does not interfere with the flow of the lubricating oil flowing through the opening.

  According to a sixth aspect of the present invention, in the lubricating oil supply device according to any one of the first to fifth aspects, a notification unit that notifies the detection by the detection unit is provided.

  According to the sixth aspect of the present invention, since the notifying unit for notifying that the detection has been detected, the cartridge replacement timing can be reliably notified to the user.

  According to a seventh aspect of the present invention, there is provided a cartridge having a plate portion that is placed on the surface of the lubricating oil filled therein and moves downward as the lubricating oil is used, and the cartridge portion to which the cartridge is attached. A connecting portion having an opening that is closed by the plate portion when moved downward, and lubricating oil filled in the cartridge with the cartridge mounted on the connecting portion through the opening. And a pump for supplying to the supply site, wherein the connection portion is provided with a detection portion for detecting that the opening portion is closed by the plate portion. And

  According to the seventh aspect of the present invention, the lubricating oil filled in the cartridge is supplied to the supply site through the opening by the action of the pump in a state where the cartridge is mounted in the opening of the connecting portion. Is done. As the lubricating oil is supplied to the supply site, the lubricating oil inside the cartridge decreases, and the plate portion placed on the surface of the lubricating oil moves downward.

  Here, since the connection portion is provided with a detection portion that detects that the opening portion is blocked by the plate portion, for example, by providing a notification portion that notifies that the opening has been detected, the opening portion is opened by the plate portion. It is possible to reliably notify the user that the user has been blocked. Thereby, the user can surely grasp the replacement timing of the cartridge. Furthermore, since the detection part is provided on the connection part side, even when the cartridge is replaced with a new one, it is not necessary to provide the detection part in the new cartridge. As a result, it is not necessary to attach the detection unit when the cartridge is replaced, and the work efficiency of the cartridge replacement can be improved.

  According to an eighth aspect of the present invention, there is provided a cartridge having a plate portion mounted on the surface of the lubricating oil filled therein and moving downward as the lubricating oil is used, and the cartridge portion to which the cartridge is attached. A connecting portion having an opening that is closed by the plate portion when moved downward, and lubricating oil filled in the cartridge with the cartridge mounted on the connecting portion through the opening. And a pump for supplying to the supply site, wherein the connecting portion is provided with a detecting portion for detecting the plate portion immediately before the plate portion closes the opening. It is characterized by that.

  According to the eighth aspect of the present invention, the lubricating oil filled in the cartridge is supplied to the supply site through the opening by the action of the pump in a state where the cartridge is mounted in the opening of the connecting portion. Is done. As the lubricating oil is supplied to the supply site, the lubricating oil inside the cartridge decreases, and the plate portion placed on the surface of the lubricating oil moves downward.

  Here, since the connecting portion is provided with a detecting portion that detects the plate portion immediately before the plate portion closes the opening portion, for example, by providing a notifying portion that notifies that the detecting portion has been detected, The user can be notified immediately before the opening is closed. Thereby, the user can grasp the replacement timing of the cartridge with a margin before the lubricant filled in the cartridge runs out. Furthermore, since the detection part is provided on the connection part side, even when the cartridge is replaced with a new one, it is not necessary to provide the detection part in the new cartridge. As a result, it is not necessary to attach the detection unit when the cartridge is replaced, and the work efficiency of the cartridge replacement can be improved.

  According to a ninth aspect of the present invention, in the lubricating oil supply apparatus according to the seventh or eighth aspect, the detection unit is a sensor that detects contact with the plate unit.

  According to the ninth aspect of the present invention, since the detection unit is a sensor that detects that the plate unit is in contact with the plate unit, for example, an existing contact sensor can be used as it is. As a result, the cartridge replacement timing can be known by a simple method.

  In this specification, “the detection unit comes into contact with the plate unit” includes not only the case where the detection unit directly contacts the plate unit, but also the case where the detection unit makes contact indirectly through the lubricating oil attached to the plate unit. It is.

  A tenth aspect of the present invention is the lubricating oil supply device according to any one of the seventh to ninth aspects, wherein the detection unit is disposed radially inward of the opening. .

  According to the invention described in claim 10, when the opening is closed by the plate portion or the opening portion regardless of the size of the plate portion, the detection portion is arranged on the radially inner side of the opening portion. Immediately before the block is closed, the detection part comes into contact with the plate part reliably. Thereby, it is possible to reliably notify the user of the replacement timing of the cartridge.

  An eleventh aspect of the invention is characterized in that, in the lubricating oil supply device according to any one of the seventh to tenth aspects, an informing unit that informs the detection by the detecting unit is provided.

  According to the eleventh aspect of the invention, since the notifying unit for notifying that the detection has been detected is provided, it is possible to reliably notify the user of the cartridge replacement timing.

  The invention according to claim 12 is the use of a lubricating oil having a bellows portion and a screw portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction and filled therein. A cartridge that shrinks in the axial direction, a connecting portion that includes a cylindrical portion having an opening that is closed by the bottom of the cartridge when the screw portion is attached and the bellows portion is most contracted, and the screw portion is the And a pump for supplying the lubricating oil filled in the cartridge to the supply site through the opening in a state where the cartridge is attached to the cylindrical portion, wherein the connection portion includes the bellows portion. A switch member arranged to be movable in the axial direction, an elastic member that urges the switch member toward the bottom side, and a position detector that detects that the switch member has reached a predetermined position; , Having the cart The switch member is pressed by the bottom portion of the wedge to move in the axial direction against the elastic force of the elastic member, and the position of the switch member when the opening is closed at the bottom portion of the cartridge is the position. It is detected by a detection unit.

  According to the invention described in claim 12, the internal lubricating oil is supplied to each supply site through the opening by the action of the pump in a state where the cartridge filled with the lubricating oil is mounted in the opening of the cylindrical portion. Is done. As the lubricating oil inside the cartridge decreases, the bellows portion of the cartridge contracts in the axial direction, and eventually the opening of the cylindrical portion is closed by the bottom portion of the cartridge.

  Here, when the bellows portion contracts in the axial direction, the switch member is pressed by the bottom portion of the cartridge and moves in the pressing direction from the bottom portion. At this time, the switch member is urged toward the bottom side of the cartridge by the elastic member, but the switch member moves in the axial direction in a manner opposed to the elastic force of the elastic member. Then, the position detection unit detects the position of the switch member when the opening of the cylindrical part is closed by the bottom of the cartridge. Accordingly, for example, by providing a notification unit that notifies that the detection has been made, it is possible to reliably notify the user that the opening of the cylindrical portion is closed by the bottom of the cartridge. As a result, the user can surely know that the lubricating oil filled in the cartridge has disappeared. Furthermore, since the position detection unit is provided on the connection unit side, it is not necessary to provide a detection unit for a new cartridge even when the cartridge is replaced with a new one. As a result, it is not necessary to attach the position detection unit when the cartridge is replaced, and the work efficiency of the cartridge replacement can be improved.

  According to a thirteenth aspect of the present invention, in the lubricating oil supply device according to the twelfth aspect, the switch member is disposed between the outside of the cylindrical portion and the inside of the screw portion. To do.

  According to the invention described in claim 13, since the switch member is disposed between the outside of the cylindrical portion and the inside of the screw portion, the switch member is lubricated when supplying the lubricant to each supply site. The lubricating oil can be supplied smoothly without interfering with the flow of the oil.

  According to a fourteenth aspect of the present invention, in the lubricating oil supply device according to the twelfth aspect, the switch member is formed in a hollow shape so that the lubricating oil inside the cartridge can pass therethrough, It arrange | positions inside the said cylindrical part, It is characterized by the above-mentioned.

  According to the invention described in claim 14, the switch member is formed in a hollow shape so that the lubricating oil inside the cartridge can pass therethrough, and is disposed inside the cylindrical portion. As a result, the lubricating oil comes into direct contact with the switch member, but since the switch member is formed in a hollow shape, the flow of the lubricating oil is not hindered by the switch member. In addition, by providing the switch member inside the existing cylindrical portion, there is no need to secure the installation space for the switch member outside the cylindrical portion. Thus, it can prevent that a connection part enlarges by utilizing effectively the existing space as an installation space of a switch member.

  A fifteenth aspect of the present invention is the lubricating oil supply apparatus according to any one of the twelfth to fourteenth aspects, further comprising a notification unit that notifies the detection by the position detection unit. .

  According to the fifteenth aspect of the present invention, since the notifying unit for notifying that the position detecting unit has detected, the cartridge replacement timing can be surely notified to the user.

  According to the present invention, it is possible to prevent an error from occurring between the estimated replacement timing and the actual replacement timing.

  Next, a lubricating oil supply device according to a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the lubricating oil supply device S is connected to a plurality of single metering valves Vt via a depressurization conduit Pt. This single metering valve Vt includes a single piston (not shown) that is reciprocated by pressurization and depressurization of the lubricating oil to a portion such as a toggle where the amount of oil supply may be relatively small, and discharges the lubricating oil. One discharge port corresponding to the piston is provided. The single metering valve Vt is connected to the pressure-reducing pipe line Pt because it needs to be depressurized because it is actuated by pressurizing and depressurizing the lubricating oil to discharge the lubricating oil.

  Further, as shown in FIG. 1, the lubricating oil supply device S is connected to a single progressive type metering valve Vs via a non-depressurization line Ps. This progressive metering valve Vs corresponds to a plurality of pistons (not shown) that are reciprocated in order by pressurization of lubricating oil to discharge a lubricating oil to a portion that requires a relatively large amount of oil supply, and the piston. A plurality of pairs of discharge ports are provided. This progressive metering valve Vs is a non-depressurizing tube that does not perform depressurization in order to maintain the pressure in the pipe when the pump is stopped and to discharge the lubricating oil from the progressive metering valve Vs without excess or deficiency, thereby making the discharge amount accurate. It is connected to the path Ps.

  As described above, the lubricating oil supply device S is connected to two lines of the pressure-reducing pipe line Pt and the non-pressure-reducing pipe line Ps.

  As shown in FIGS. 1 to 3, the lubricating oil supply device S includes a lubricating oil reservoir 10 that houses a cartridge 12 filled with lubricating oil. The lubricating oil storage unit 10 includes a cartridge 12 filled with lubricating oil, a cartridge mounting unit 14 to which the cartridge 12 is mounted, and a cover 15 that covers the cartridge 12 mounted to the cartridge mounting unit 14. ing.

  Here, as shown in FIGS. 4 and 5, the cartridge 12 includes a cylindrical screw portion 16. On the outer periphery of the threaded portion 16, a threaded portion 18 that is threadedly engaged with a later-described threaded portion 26 is formed in a protruding shape. The cartridge 12 is attached to the cartridge attachment portion 14 by the screwed portion 18 being engaged with the screw engagement portion 26 formed in the cartridge attachment portion 14.

  A bellows portion 20 is integrally formed with the screw portion 16. Specifically, the screw portion 16 is formed directly at one end portion in the axial direction of the bellows portion 20. Further, the bellows portion 20 is formed such that the crest portions 20A having a long radial length and the trough portions 20B having a short radial length are alternately and continuously in the axial direction (the arrow Z direction in FIG. 4). Has been.

  Further, when the lubricating oil in the cartridge 12 is supplied to each supply site in a state where the cartridge 12 is mounted on the cartridge mounting portion 14, the lubricating oil filled in the cartridge 12 decreases. At this time, the bellows portion 20 of the cartridge 12 is contracted in the axial direction, and the bottom portion 20C of the cartridge 12 eventually closes an opening of a cylindrical portion 24 described later.

  Further, as shown in FIGS. 3 and 4, the cartridge mounting portion 14 is positioned outside the screw portion 16 and a cylindrical portion 24 that is inserted inside the screw portion 16 in a state where the cartridge 12 is mounted. And a threaded portion 26 that is threadedly engaged with the threaded portion 18 of the threaded portion 16.

  Further, in a state where the cartridge 12 is mounted on the cartridge mounting portion 14, a part of the cartridge 12 is configured to be located on the radially outer side of the cylindrical portion 24.

  As shown in FIGS. 3 and 4, a contact sensor 25 is provided on the radially inner side of the cylindrical portion 24. The contact sensor 25 is bonded to the inside of the cylindrical portion 24 in the radial direction with an adhesive or the like, or attached to the inside of the cylindrical portion 24 with a fixing tool such as a screw. The upper end portion of the contact sensor 25 is provided so as to be substantially flush with the distal end portion of the cylindrical portion 24. For this reason, when the opening of the cylindrical portion 24 is closed by the bottom portion 20 </ b> C of the cartridge 12, the bottom portion 20 </ b> C of the cartridge 12 contacts the upper end portion of the contact sensor 25. Thus, when the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12, the state is detected by the contact sensor 25.

  As the contact sensor 25, a limit switch, a pressure sensor, an optical sensor, or the like that detects that the bottom 20C of the cartridge 12 is in contact is suitable.

  Further, as shown in FIG. 4, a notification unit 27 such as a buzzer is connected to the contact sensor 25. When the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12, the state is detected by the contact sensor 25, and a predetermined sound (warning sound) is notified from the notification portion 27.

  As shown in FIGS. 1 to 3, the lubricating oil supply device S includes a pump 28. This pump is provided at a position below the lubricating oil reservoir 10 and has a function of supplying the lubricating oil filled in the cartridge 12 to the depressurizing conduit Pt and the non-depressurizing conduit Ps.

  Here, as shown in FIGS. 1 to 3, the pump 28 is a plunger-type pump including a piston 30 and a cylinder 32, and is reciprocally driven by a drive motor 34 via a cam mechanism 36. A lubricating oil reservoir 10 is provided on the upper side of the pump 28, and a mounting part 40 for a switching valve 38, which will be described later, is formed on the lower side. As shown in FIG. 6, the lower mounting portion 40 of the pump 28 is provided with a discharge port 42 that discharges the lubricating oil, and a return port 44 that opens to communicate with the lubricating oil storage unit 10 side is exposed. Is provided.

  Further, as shown in FIGS. 1 to 3, the lubricating oil supply device S includes a switching valve 38. As shown in FIGS. 7 and 8, the switching valve 38 is constituted by a solenoid valve, and is connected to the primary discharge port 46 connected to the discharge port 42 of the pump 28 and the return port 44 of the pump 28 to store the lubricating oil. At least 4 of the primary side open port 48 opened to the part 10 side, the secondary side pressure release pipe port 50 connected to the pressure release pipe line Pt, and the secondary side non-pressure release pipe port 52 connected to the non-pressure release pipe line Ps. Has two ports. The primary-side discharge port 46 and the primary-side open port 48 are formed in the mounted portion 54 on the upper side of the switching valve 38, and the secondary-side decompression line port 50 and the secondary-side non-decompression line port 52 are formed facing the front. Has been. A vacant port 56 is formed in the switching valve 38 and is closed by a plug 58.

  As shown in FIG. 8, the switching valve 38 includes a spool 60, a solenoid 62 that drives the spool 60, and a spring 64 that returns the spool 60 to a steady position. When the solenoid 62 is energized, the spool 60 connects the primary side discharge port 46 and the secondary side decompression line port 50 and discharges the primary side open port 48 and the secondary side non-depressurization line port 52 to the primary side. The port 46 and the secondary-side decompression line port 50 are disconnected from each other and returned to the steady position by the spring 64 when the solenoid 62 is de-energized. The primary-side discharge port 46 and the secondary-side non-decompression line port 52 And the primary side open port 48 and the secondary side decompression line port 50 are connected.

  The switching valve 38 is detachably attached to the pump 28. Specifically, the mounting portion 40 of the pump 28 and the mounted portion 54 of the switching valve 38 are formed in close contact with each other, and as shown in FIG. Four female screws 66 are formed. As shown in FIG. 7A, a bolt (not shown) that is screwed into the female screw 66 of the pump 28 is inserted into the switching valve 38 and is pressed toward the pump 28 by the bolt head. Four mounting holes 67 for mounting the switching valve 38 to the pump 28 are provided. The switching valve 38 is attached to the pump 28 by inserting a bolt through the mounting hole 67 and screwing it into the female screw 66 with the mounting portion 40 of the pump 28 and the mounted portion 54 of the switching valve 38 being in close contact with each other. . Further, the switching valve 38 is removed by loosening and removing the bolt.

  As shown in FIGS. 1 and 2, the lubricating oil supply device S includes a controller 68 that controls the drive motor 34 of the pump 28 and the solenoid 62 of the switching valve 38. As shown in FIG. 9, the controller 68 synchronizes the operation of the pump 28 and the stop mode Mr for turning off the solenoid 62 with the on / off of the operation of the pump 28 and the on / off of the solenoid 62 in synchronization. A depressurization line supply mode Mt for supplying lubricating oil to the pressure line Pt, and a non-depressurization line supply mode for supplying the lubricating oil to the non-depressurization line Ps by turning on and off the pump 28 when the solenoid 62 is turned off. A function for setting to any of the three modes with Ms is provided. The function of the controller 68 is realized by functions such as a timer and a microcomputer that can be set in time.

  Next, an example of a lubricating method using the lubricating oil supply measure S of the present embodiment will be described. A case will be described in which the lubricant oil supply device S is operated by the controller 68 with the decompression pipe supply mode Mt, the stop mode Mr, the non-decompression pipe supply mode Ms, and the stop mode Mr as one cycle.

  As shown in FIG. 1, the depressurization line Pt is connected to the secondary side depressurization line port 50 of the switching valve 38, and the nondepressurization line Ps is connected to the secondary side nondepressurization line port 52.

  When the controller 68 switches the stop mode Mr (FIG. 8 (a)) to the decompression pipe supply mode Mt (FIG. 8 (b)) and operates the lubricating oil supply device S, as shown in FIG. 8 (b) and FIG. In addition, the operation of the pump 28 and the switching valve 38 are turned on in synchronization. As a result, as shown in FIG. 8B, in the switching valve 38, since the spool 60 is on when the solenoid 62 is energized, the primary discharge port 46 and the secondary decompression line port 50 are connected. At the same time, the primary side opening port 48 and the secondary side non-depressurization line port 52 are shut off from the primary side discharge port 46 and the secondary side depressurization line port 50. For this reason, the lubricating oil is supplied to the decompression pipe Pt. Then, as shown in FIG. 9, after a predetermined time, the operation of the pump 28 and the switching valve 38 are turned off in synchronization. As a result, as shown in FIG. 8C, in the switching valve 38, the spool 60 is returned to the steady position by the spring 64 because the solenoid 60 is off when the solenoid 62 is de-energized. The secondary side non-decompression line port 52 is connected, and the primary side open port 48 and the secondary side depressurization line port 50 are connected. Therefore, since the primary side open port 48 and the secondary side decompression pipe port 50 are connected, the hydraulic pressure is released to the lubricating oil reservoir 10, and the decompression pipe Pt is decompressed. During a predetermined time period when the pump 28 is turned on and the switching valve 38 is turned on, the lubricating oil is pressurized and depressurized in the depressurizing line Pt. Therefore, the single metering valve Vt rotates once, and the lubricating oil Is discharged.

  Next, as shown in FIG. 9, since the controller 68 sets the lubricating oil supply device S to the stop mode Mr, the operation of the pump 28 and the switching valve 38 are turned off, and the single metering valve Vt and the progressive metering meter are turned on. The valve Vs does not operate. In this state, when a predetermined time elapses, as shown in FIG. 9, the controller 68 operates the lubricating oil supply device S in the non-depressurization conduit supply mode Ms, and operates the pump 28 with the switching valve 38 turned off. Turn it on. As a result, as shown in FIG. 8C, in the switching valve 38, the spool 60 is in the off state when the solenoid 62 is not energized, so the primary discharge port 46 and the secondary non-depressurization line port 52 Are connected to the primary side opening port 48 and the secondary side decompression line port 50, and the lubricating oil from the pump 28 is supplied to the non-decompression line Ps for a predetermined time. Therefore, in the progressive flow valve Vs, the piston is reciprocated in order by pressurization of the lubricating oil and discharges the lubricating oil. Thereafter, as shown in FIG. 9, the controller 68 sets the lubricating oil supply device S to the stop mode Mr and turns off the operation of the pump 28, so that the operation of the pump 28 and the switching valve 38 are turned off, The single metering valve Vt and the progressive metering valve Vs do not operate.

  By repeating the above-described cycle, the lubricating oil is supplied from the lubricating oil supply device S to the supply site via the pipelines Pt and Ps and the valves Vt and Vs. In this case, the lubricating oil can be supplied by one pump 28, and the depressurization can be performed only by switching the switching valve 38. Therefore, it is not necessary to provide a dedicated pump for each pipeline system. Accordingly, the configuration can be simplified and the cost can be reduced.

  Next, the operation of the lubricating oil supply device S of the present embodiment will be described.

  As shown in FIGS. 3 and 4, the thread portion 16 of the cartridge 12 filled with lubricating oil is mounted on the cartridge mounting portion 14. Mounting of the cartridge 12 to the cartridge mounting portion 14 is realized by screwing a threaded portion 18 formed on the outer peripheral surface of the screw portion 16 of the cartridge 12 with a screwing portion 26 of the cartridge mounting portion 14. At this time, the cylindrical portion 24 is inserted inside the screw portion 16 of the cartridge 12, and the screwing portion 26 is located outside the screw portion 16. When the threaded portion 16 of the cartridge 12 is mounted on the cartridge mounting portion 14, the lubricating oil supply device S passes through the cylindrical portion 24 from the threaded portion 16 of the cartridge 12 due to the suction force of the pump 28. It flows into the inside of the. And by the action | operation of the switching valve 38 mentioned above, lubricating oil is supplied to each pipe line Pt and Ps, and is supplied to a predetermined supply site | part via each valve Vt and Vs. Here, the lubricating oil inside the cartridge 12 gradually disappears, but the bellows portion 20 is formed so that the peak portions 20A overlap each other from the other axial end (upper end portion) of the bellows portion 20 of the cartridge 12. It gradually shrinks in the axial direction. Finally, the bottom portion 20C of the cartridge 12 closes the opening of the cylindrical portion 24 by the suction force of the pump 28.

  Here, when the bottom portion 20 </ b> C of the cartridge 12 closes the opening of the cylindrical portion 24, the bottom portion 20 </ b> C of the cartridge 12 contacts the upper end portion of the contact sensor 25. Accordingly, the contact sensor 25 detects that the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12. When the contact sensor 25 detects that the opening of the cylindrical portion 24 is closed by the bottom portion 20 </ b> C of the cartridge 12, a predetermined warning sound is output from the notification portion 27. By listening to the warning sound, the user can easily grasp the replacement timing of the cartridge 12 and replace it with a new one. In this way, by replacing the cartridge 12 with a new cartridge at an appropriate timing, the lubricating oil can be smoothly supplied to each supply site.

  As described above, the user can surely grasp the replacement timing of the cartridge 12 by the notification from the notification unit 27. Further, since the contact sensor 25 is provided on the cartridge mounting portion 14 side, even when the cartridge 12 is replaced with a new one, it is not necessary to provide the contact sensor 25 on the new cartridge. Thereby, the attachment of the contact sensor 25 accompanying the replacement of the cartridge 12 becomes unnecessary, and the work efficiency of the cartridge replacement can be improved.

  In addition, by using the existing contact sensor 25 as the detection unit, it is possible to know the replacement timing of the cartridge 12 by a simple method by simply attaching the existing contact sensor 25.

  Further, since the contact sensor 25 is attached to the inside of the cylindrical portion 24 in the radial direction, the contact sensor is used when the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12 regardless of the size of the cartridge 12. 25 reliably contacts the bottom 20C of the cartridge 12. Accordingly, it is possible to reliably notify the user that the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12.

  As shown in FIG. 10, the contact sensor 25 may be provided at a position radially outside the cylindrical portion 24. That is, when the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12, the vicinity of the screw portion 16 of the cartridge 12 is pressed downward by the bottom portion 20C of the cartridge 12 and bends. The upper end portion of the sensor 25 is configured so that the vicinity of the screw portion 16 of the cartridge 12 contacts.

  According to this modification, when the opening of the cylindrical portion 24 is closed by the bottom portion 20 </ b> C of the cartridge 12, the vicinity of the screw portion 16 of the cartridge 12 is pressed downward to contact the upper end portion of the contact sensor 25. . When the vicinity of the screw portion 16 of the cartridge 12 is pressed downward and comes into contact with the upper end portion of the contact sensor 25, this state is detected by the contact sensor 25, and a predetermined warning sound is output by the notification portion 27. Thus, the user can reliably grasp the replacement timing of the cartridge 12 by the notification from the notification unit 27. In addition, since the contact sensor 25 is disposed on the radially outer side of the cylindrical portion 24, the lubricant does not adhere to the contact sensor 25. Thereby, the contact sensor 25 does not break down due to contact with the lubricating oil, and the contact sensor 25 does not interfere with the flow of the lubricating oil flowing through the cylindrical portion 24.

  Further, the contact sensor 25 may be attached to the outer peripheral surface of the cylindrical portion 24, and the contact sensor 25 may be provided between the cylindrical portion 24 and the screw portion 16. Even in this configuration, the bottom portion 20C of the cartridge 12 can be brought into contact with the contact sensor 25 when the opening of the cylindrical portion 24 is closed by the bottom portion 20C of the cartridge 12.

  Next, a lubricating oil supply device according to a second embodiment of the present invention will be described with reference to the drawings. In addition, about the structure which overlaps with the lubricating oil supply apparatus which concerns on 1st Embodiment, and the same effect, description is abbreviate | omitted suitably.

  As shown in FIG. 11, the cartridge 70 of the lubricating oil supply device of the present embodiment includes a cylindrical tank portion 72. The tank portion 72 is filled with lubricating oil, and a plate portion 74 is placed on the surface of the lubricating oil. One end portion of the tank portion 72 is connected to a tank mounting portion 78 connected to the pump 76. The tank mounting portion 78 has a cylindrical mounting port 80. The attachment port 80 is inserted into the inner peripheral surface of the tank portion 72 in a state where the cartridge 70 is attached to the tank attachment portion 78. A seal member 82 is provided between the attachment port 80 and the inner peripheral surface of the tank portion 72.

  In the cartridge 70 used in this embodiment, when the lubricating oil inside the tank portion 72 is supplied to the pump 76 via the mounting port 80 and decreases, the plate portion 74 is used for the lubricating oil inside the tank portion 72. Along with this, it moves downward. Finally, the plate portion 74 closes the opening of the attachment port 80 by the suction force of the pump 76.

  A contact sensor 84 is provided on the inner side in the radial direction of the attachment port 80. The contact sensor 84 is bonded to the inner side in the radial direction of the mounting port 80 with an adhesive or the like, or is mounted on the inner side in the radial direction of the mounting port 80 with a fixing tool such as a screw. The upper end portion of the contact sensor 84 is provided so as to be substantially flush with the distal end portion of the attachment port 80. For this reason, the plate portion 74 contacts the upper end portion of the contact sensor 84 in a state where the opening of the attachment port 80 is closed. As described above, when the opening of the attachment port 80 is closed by the plate portion 74, the state is detected by the contact sensor 84.

  As the contact sensor 84, a limit switch, a pressure sensor, an optical sensor, or the like that detects that the plate portion 74 is in contact is suitable.

  Further, a notification unit 86 such as a buzzer is connected to the contact sensor 84. When the opening of the attachment port 80 is closed by the plate portion 74, the state is detected by the contact sensor 84, and a predetermined sound (warning sound) is notified from the notification portion 86.

  According to the present embodiment, when the opening of the attachment port 80 is closed by the plate portion 74, the plate portion 74 contacts the contact sensor 84. When the plate portion 74 comes into contact with the contact sensor 84, the contact sensor 84 detects that and a predetermined warning sound is output from the notification portion 86. Thereby, the user can grasp | ascertain the replacement timing of the cartridge 70 reliably. Further, since the contact sensor 84 is provided not on the cartridge 70 but on the mounting port 80 side, even when the cartridge 70 is replaced with a new one, it is not necessary to provide the contact sensor 84 on the new cartridge. As a result, it is not necessary to attach the contact sensor 84 accompanying the replacement of the cartridge 70, and the work efficiency of the cartridge replacement can be improved.

  In the first embodiment and the second embodiment, the buzzer is exemplified as the notification units 27 and 86, but is not limited to the buzzer. For example, a predetermined signal is supplied to the industrial machine (injection molding machine or machine tool) side. May be used to stop the operation of the industrial machine and output a predetermined alarm. In addition to outputting a warning sound from a buzzer, it is preferable to turn on a lamp or display predetermined information on a control panel as a predetermined alarm.

  In the first and second embodiments, the contact sensor 25 detects when the opening of the cylindrical portion 24 is closed by the bottom portion 20 </ b> C of the cartridge 12, or the opening of the attachment port 80 is closed by the plate portion 74. However, the present invention is not limited to this configuration. For example, the contact sensor 25 is made long enough to protrude outward from the opening of the cylindrical portion 24, and immediately before the opening of the cylindrical portion 24 is closed by the bottom 20 C of the cartridge 12, the bottom 20 C of the cartridge 12 is moved to the contact sensor 25. You may make it contact. Similarly, the contact sensor 84 is made long enough to protrude outward from the opening of the attachment port 80, and the plate portion 74 is brought into contact with the contact sensor 84 immediately before the opening of the attachment port 80 is closed by the plate portion 74. You may do it. As a result, the user can know the replacement timing with a margin before the lubricant filled in the cartridge runs out.

  Next, a lubricating oil supply apparatus according to a third embodiment of the present invention will be described with reference to the drawings. In addition, about the structure which overlaps with the lubricating oil supply apparatus which concerns on 1st Embodiment, and the same effect, description is abbreviate | omitted suitably.

  As shown in FIG. 12, the lubricating oil supply device according to the present embodiment replaces the contact sensor 25 of the lubricating oil supply device according to the first embodiment with a metal float switch member (switch member) 90, and A position detection sensor (position detection unit) 92 that detects the position of the float switch member 90 is provided. The float switch member 90 may be composed of a magnet. As shown in FIG. 12, the float switch member 90 is disposed between the outside of the cylindrical portion 99 and the screw portion 16 of the cartridge 12. The float switch member 90 includes a switch member main body 94 formed in a cylindrical shape. A through hole 96 is formed at one end of the switch member body 94 in the axial direction, and the lubricating oil inside the bellows portion 20 flows into the screw portion 16 through the through hole 96. For this reason, the float switch member 90 does not hinder the flow of the lubricating oil. Further, on the radially inner side surface of the switch member main body 94, a first projecting portion 98 and a second projecting portion 100 are formed at predetermined intervals in the axial direction. That is, a protruding stopper portion 102 is formed on the outer side surface of the cylindrical portion 99, and the float switch member 90 is directed toward the bottom 20C side (the arrow U direction side in FIG. 12) of the cartridge 12 by the coil spring 104. However, when the first protrusion 98 comes into contact (engagement) with the stopper portion 102, the float switch member 90 is further moved toward the cartridge bottom portion 20C side (the arrow U direction side in FIG. 12). Movement is prevented. On the other hand, when the bellows portion 20 is most contracted and the one end portion in the axial direction of the switch member main body 94 is pressed by the bottom portion 20C, the float switch member 90 is opposed to the elastic force from the coil spring 104 in the bottom portion of the cartridge 12. Although it moves to the 20C side and the axial direction opposite side (arrow D direction side in FIG. 12), when the 2nd projection part 100 contacts (engages) the stopper part 102, it is more than the float switch member 90. Is prevented from moving to the cartridge bottom portion 20C side in the axial direction opposite side (arrow D direction side in FIG. 12). Further, the coil spring 104 described above is disposed between the first protrusion 98 of the switch member main body 94 and the horizontal portion 91 formed on the outer side of the tubular portion 99. The switch member main body 94 is always urged toward the bottom portion 20 </ b> C by the coil spring 104. Further, a position detection sensor 92 is disposed in the vicinity of the cylindrical portion 99. The position detection sensor 92 detects the float switch member 90 when the float switch member 90 reaches a predetermined position. As the position detection sensor 92, a sensor that can detect the float switch member 90 in contact or non-contact, such as a magnetic sensor or a pressure sensor, is used. The position detection sensor 92 is connected to the notification unit 27.

  According to the lubricating oil supply device according to the third embodiment, when the lubricating oil inside the cartridge 12 decreases, the bellows portion 20 of the cartridge 12 contracts in the axial direction, and eventually the cylindrical portion 99 is formed by the bottom portion 20C of the cartridge 12. The opening of is closed. Here, when the bellows portion 20 contracts in the axial direction, the float switch member 90 is pressed by the bottom portion 20C of the cartridge 12 and moves in the pressing direction from the bottom portion 20C (arrow D direction side in FIG. 12). At this time, the float switch member 90 is urged toward the bottom 20C side of the cartridge 12 by the coil spring 104, but the float switch member 90 is opposed to the cartridge mounting portion 95 side by the elastic force of the coil spring 104 ( It moves to the arrow D direction side in FIG. Then, the position detection sensor 92 detects the position of the float switch member 90 when the opening of the cylindrical portion 99 is closed by the bottom portion 20 </ b> C of the cartridge 12. By providing the notification unit 27 that notifies the detection, the user can be surely notified that the opening of the cylindrical portion 99 is closed by the bottom portion 20C of the cartridge 12. As a result, the user can surely know that the lubricating oil filled in the cartridge 12 has disappeared. Furthermore, since the position detection sensor 92 is provided on the cartridge mounting portion 95 side, even when the cartridge 12 is replaced with a new one, it is not necessary to provide the float switch member 90 and the position detection sensor 92 on the new cartridge. As a result, it is not necessary to attach the float switch member 90 and the position detection sensor 92 when the cartridge 12 is replaced, and the work efficiency of the cartridge 12 replacement can be improved.

  In particular, since the float switch member 90 is disposed between the outside of the cylindrical portion 99 and the inside of the screw portion 16, the float switch member 90 is configured to flow the lubricant when supplying the lubricant to each supply site. The supply operation of the lubricating oil can be performed smoothly without obstruction.

  Next, a lubricating oil supply device according to a fourth embodiment of the present invention will be described with reference to the drawings. In addition, about the structure which overlaps with the lubricating oil supply apparatus which concerns on 1st Embodiment, and the same effect, description is abbreviate | omitted suitably.

  As shown in FIG. 13, the lubricating oil supply apparatus according to the present embodiment is made of a metal and hollow float switch member (switch member) 110 instead of the contact sensor 25 of the lubricating oil supply apparatus according to the first embodiment. And a position detection sensor (position detection unit) 112 for detecting the position of the float switch member 110 is provided. As shown in FIG. 13, the float switch member 110 is disposed inside the cylindrical portion 114. The float switch member 110 may be composed of a magnet. The float switch member 110 includes a switch member main body 116 formed in a cylindrical shape. The switch member main body 116 is formed with a through hole 118 penetrating in the axial direction, and the lubricating oil inside the bellows portion 20 is supplied to each supply site through the through hole 118. For this reason, the float switch member 110 does not hinder the flow of the lubricating oil. Further, an enlarged diameter portion 120 is formed on the radially outer side surface near the tip of the switch member main body 116. That is, a stepped portion 122 that engages with the enlarged diameter portion 120 is formed on the inner side surface of the cylindrical portion 114, and the float switch member 110 is moved to the bottom 20C side of the cartridge 12 by the coil spring 124 (arrow U in FIG. 13). The enlarged diameter portion 120 is in contact with (engaged with) the stepped portion 122, so that the float switch member 110 further on the cartridge bottom 20C side (in the direction of arrow U in FIG. 13). Movement to the side) is prevented. The coil spring 124 described above is disposed on the horizontal portion 126 inside the cylindrical portion 114. The switch member main body 116 is always urged toward the bottom portion 20 </ b> C by the coil spring 124. In addition, a position detection sensor 112 is disposed inside the cylindrical portion 114. The position detection sensor 112 detects the float switch member 110 when the float switch member 110 reaches a predetermined position. As the position detection sensor 112, a sensor such as a magnetic sensor or a pressure sensor that can detect the float switch member 110 in contact or non-contact is used. The position detection sensor 112 is connected to the notification unit 27.

  According to the lubricating oil supply apparatus which concerns on 4th Embodiment, the effect | action and effect similar to the lubricating oil supply apparatus which concerns on 3rd Embodiment can be acquired. In particular, the float switch member 110 is formed in a hollow shape so that the lubricating oil inside the cartridge 12 can pass therethrough, and is disposed inside the cylindrical portion 114. Thereby, the lubricating oil comes into direct contact with the float switch member 110. However, since the float switch member 110 is formed in a hollow shape, the flow of the lubricating oil is not hindered by the float switch member 110. In addition, by providing the float switch member 110 inside the existing cylindrical portion 114, it is not necessary to secure a space for installing the float switch member 110 outside the cylindrical portion 114. As described above, by effectively using the existing space as the installation space for the float switch member 110, it is possible to prevent the cartridge mounting portion 128 from becoming large.

1 is a configuration diagram in which a lubricating oil supply device according to a first embodiment of the present invention is used in a lubrication system. It is a front view of the lubricating oil supply device concerning a 1st embodiment of the present invention. It is side surface sectional drawing of the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention. The left side is a diagram of a state in which the cartridge constituting the lubricating oil supply device according to the first embodiment of the present invention is mounted on the cartridge mounting portion of the lubricating oil supply device and the bellows portion is extended, and the right side is the bellows portion thereof. It is a figure of the state which shrunk. It is a front view of the cartridge which comprises the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention. It is a bottom view which shows the pump which comprises the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows the switching valve which comprises the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention, (a) is a top view, (b) is a front view. It is sectional drawing which shows the operating state of the switching valve which comprises the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention, (a) is a figure which shows the state of a stop mode (non-decompression pipe | tube supply mode), (B) is a figure which shows the state of the depressurization pipeline supply mode, (c) is a figure which shows the state of the non-decompression pipeline supply mode (stop mode). It is a timing chart figure which shows an example of the operation | movement flow of the switching valve of a lubrication system using the lubricating oil supply apparatus which concerns on 1st Embodiment of this invention, a pump, a single metering valve, and a progressive metering valve. It is a figure which shows the modification of FIG. It is a block diagram which shows the principal part of the lubricating oil supply apparatus which concerns on 2nd Embodiment of this invention, The left side is a figure which shows the position of the plate part when lubricating oil is filled in the inside of a cartridge, The right side is a cartridge It is a figure which shows the position (state which has closed the opening part with the plate part) when the inside is not filled with lubricating oil. It is a block diagram which shows the principal part of the lubricating oil supply apparatus which concerns on 3rd Embodiment of this invention, The left side is a figure which shows the position of the switch member in the state which the bellows part of the cartridge extended, The right side is a bellows part of a cartridge It is a figure which shows the position of the switch member of the state which most contracted. It is a block diagram which shows the principal part of the lubricating oil supply apparatus which concerns on 4th Embodiment of this invention, (a) is a top view of the principal part of a lubricating oil supply apparatus, (b) The left side is a lubricating oil supply apparatus. It is a fragmentary sectional view which shows the position of the switch member of the state where the bellows part was extended, and the right side is a fragmentary sectional view which shows the position of the switch member in the state where the bellows part of the lubricating oil supply apparatus contracted.

Explanation of symbols

S Lubricating oil supply device 12 Cartridge 14 Cartridge mounting portion (connection portion)
20 bellows part 20A mountain part 20B valley part 24 cylindrical part (opening part)
25 Contact sensor (detector, sensor)
27 Notification section 28 Pump 70 Cartridge 74 Plate section 76 Pump 78 Tank mounting section (connection section)
80 Mounting port (opening)
84 Contact sensor (detector, sensor)
86 Notification unit 90 Float switch member (switch member)
92 Position detection sensor (position detection unit)
95 Cartridge mounting part (connection part)
99 Cylindrical part 104 Coil spring (elastic member)
110 Float switch member (switch member)
112 Position detection sensor (position detection unit)
114 Cylindrical part 124 Coil spring (elastic member)
128 Cartridge mounting part (connection part)

Claims (15)

A cartridge that has a bellows portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and contracts in the axial direction with the use of lubricating oil filled therein, and the cartridge is mounted A connecting portion having an opening that is closed by a bottom portion of the cartridge when the bellows portion is most contracted, and lubricating oil filled in the cartridge in a state where the cartridge is attached to the connecting portion. A lubricating oil supply device having a pump for supplying to a supply site through an opening,
The lubricating oil supply device according to claim 1, wherein the connection portion is provided with a detection portion that detects that the opening portion is closed by a bottom portion of the cartridge. A cartridge that has a bellows portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and contracts in the axial direction with the use of lubricating oil filled therein, and the cartridge is mounted A connecting portion having an opening that is closed by a bottom portion of the cartridge when the bellows portion is most contracted, and lubricating oil filled in the cartridge in a state where the cartridge is attached to the connecting portion. A lubricating oil supply device having a pump for supplying to a supply site through an opening,
The lubricating oil supply device according to claim 1, wherein the connecting portion is provided with a detection portion that detects the bottom portion immediately before the bottom portion of the cartridge closes the opening portion.   The lubricating oil supply apparatus according to claim 1, wherein the detection unit is a sensor that detects contact with the cartridge.   The lubricating oil supply device according to any one of claims 1 to 3, wherein the detection unit is disposed radially inside the opening.   The lubricating oil supply device according to any one of claims 1 to 3, wherein the detection unit is arranged on a radially outer side of the opening.   The lubricating oil supply device according to any one of claims 1 to 5, further comprising a notification unit that notifies that the detection unit has detected the detection unit. A cartridge having a plate portion mounted on the surface of the lubricating oil filled therein and moving downward as the lubricating oil is used, and the plate when the cartridge is mounted and the plate portion moves most downward A connection part having an opening closed by the part, and a pump for supplying lubricating oil filled in the cartridge to the supply site through the opening with the cartridge mounted in the connection part, A lubricating oil supply device comprising:
The lubricating oil supply apparatus according to claim 1, wherein the connection portion is provided with a detection portion that detects that the opening portion is closed by the plate portion. A cartridge having a plate portion mounted on the surface of the lubricating oil filled therein and moving downward as the lubricating oil is used, and the plate when the cartridge is mounted and the plate portion moves most downward A connection part having an opening closed by the part, and a pump for supplying lubricating oil filled in the cartridge to the supply site through the opening with the cartridge mounted in the connection part, A lubricating oil supply device comprising:
The connection part is provided with a detection unit for detecting the plate part immediately before the plate part closes the opening.   The lubricating oil supply apparatus according to claim 7 or 8, wherein the detection unit is a sensor that detects contact with the plate unit.   The lubricating oil supply device according to any one of claims 7 to 9, wherein the detection unit is disposed radially inside the opening.   The lubricating oil supply device according to any one of claims 7 to 10, further comprising a notification unit that notifies that the detection unit has detected the detection unit. A cartridge that contracts in the axial direction with the use of lubricating oil having a bellows portion and a threaded portion in which a crest portion having a large diameter and a trough portion having a small diameter are continuously formed in the axial direction, and being filled therein; In the state where the threaded portion is attached and the connecting portion includes a cylindrical portion having an opening closed by the bottom portion of the cartridge when the bellows portion is most contracted, and the threaded portion is attached to the cylindrical portion. A lubricating oil supply apparatus comprising: a pump for supplying lubricating oil filled in the cartridge to a supply site through the opening;
The switch member disposed so as to be movable in the axial direction of the bellows portion at the connection portion, an elastic member that urges the switch member toward the bottom side, and the switch member has reached a predetermined position A position detection unit for detecting
The position of the switch member when the switch member is pressed by the bottom portion of the cartridge to move in the axial direction against the elastic force of the elastic member and the opening is closed at the bottom portion of the cartridge is the position. A lubricating oil supply device characterized by being detected by a detection unit.   The lubricating oil supply device according to claim 12, wherein the switch member is disposed between an outer side of the cylindrical part and an inner side of the screw part. The switch member is formed in a hollow shape so that the lubricating oil inside the cartridge can pass therethrough,
The lubricating oil supply device according to claim 12, wherein the switch member is disposed inside the cylindrical portion. The lubricating oil supply device according to any one of claims 12 to 14, further comprising a notifying unit that notifies that the position is detected by the position detecting unit.

Images