JPH07267536A - Rail oiling device of elevator - Google Patents

Abstract

PURPOSE:To prevent generation of abnormal sounds and wear certainly and reduce the labor for maintenance and inspection by arranging so that oil refill to an oil supply device can be performed easily and certainly. CONSTITUTION:An oil tank 5 to contain a sufficient quantity of oil is connected with an oil supply device 42-1, and the oil quantity therein is sensed by a float switch. If oil refill to the oil supply device 42-1 is necessary, a pump 6 is driven from a pump control board 7 so that oil is automatically fed to the device 42-1 from the oil tank 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator rail oil supply device for applying oil to a guide rail for guiding the raising and lowering of a car or counterweight.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view showing an example of a conventional rail oil supply device for an elevator. In the figure, reference numeral 1 is a guide rail (main rail) having a T-shaped cross section, which is installed in the hoistway along the ascending / descending direction of a car (not shown),
The guide rails 1 are arranged on both sides of the car (only one is shown in the figure). 2 is an upper beam provided on the upper part of the car, 3 is a guide shoe device fixed to the upper beam 2, and the guide shoe device 3 is a guide rail 1
Has a slider 3a that engages with.

Reference numeral 4 denotes a rail lubrication device which is mounted on the guide shoe device 3 and applies oil to the guide rail 1. The rail lubrication device 4 is a mounting bracket 41 mounted on the upper portion of the main body of the guide shoe device 3. And a lubricator 42 attached to the attachment fitting 41. Further, oil is stored in the oil supply device 42, and this oil is applied to the guide rail 1 by the oil supply device 42.

In the conventional elevator as described above, friction is generated between the guide rail 1 and the slider 3a when the car is moved up and down, which causes abnormal noise and wear. In order to prevent this, oil is applied to the guide rail 1 by the oil supply device 42.

[0005]

However, in the above-described conventional rail lubrication device 4, the lubricator 42 is mounted on the guide shoe device 3, and a sufficient amount of oil is stored in the lubricator 42. Since it cannot be stored, the oil in the lubricator 42 is exhausted in a short period of use, and the lubricator 4
The oil cannot be applied to the guide rail 1 until the oil is replenished to the second rail, which causes abnormal noise and wear. Further, in order to prevent this, it is necessary for a maintenance person to inspect the refueling device 42 quite frequently to perform replenishment work, which is also a problem in that it takes time.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to more reliably and easily replenish oil to a lubricator, which causes abnormal noise and wear. It is an object of the present invention to provide an elevator rail lubrication device that can be more reliably prevented and can reduce the time and effort for maintenance and inspection.

[0007]

In order to achieve the above object, an elevator rail lubrication system according to claim 1 is provided with:
It is installed between a car or a counterweight, and an oil tank for applying oil to the guide rails, an oil tank connected to the oil tank through an oil pipe, and an oil tank installed between the oil tank and the oil tank. A pump for supplying the oil supply device, a detector for detecting the amount of oil in the oil supply device, and a controller for controlling the drive of the pump according to the information from the detector are provided.

[0008] In the elevator rail lubrication device according to the second aspect of the present invention, a plurality of lubricators are provided, and the lubrication pipe for supplying oil from the oil tank to each lubricator is provided with information from the detector of each lubricator. A valve that opens and closes accordingly is provided.

According to the third aspect of the present invention, there is provided an elevator rail oil supply apparatus, which is provided in a machine room and an oil tank detector for detecting the amount of oil in the oil tank, and is installed in the oil tank according to information from the oil tank detector. And a notification means for notifying whether or not the oil supply is required.

Further, in the elevator rail oil supply device according to the fourth aspect of the present invention, the oil supply pipe and the pump are detachable from the oil tank, and the oil tank is replaceable.

[0011]

According to the elevator rail oil supply device of the first aspect, the detector detects the decrease of the oil in the oil supply device, and the pump is driven by the information from the detector to supply a sufficient amount of oil. Oil is supplied from the stored oil tank to the lubricator.

According to another aspect of the present invention, there is provided a rail lubrication system for an elevator, in which only a valve provided on a lubrication pipe leading to a lubricator requiring replenishment is opened, and oil is supplied to the lubricator not requiring replenishment. Prevent oversupply.

Further, according to the elevator rail oil supply device of the third aspect, when the amount of oil in the oil tank decreases, the oil tank detector detects this and informs the machine room that replenishment is necessary. Informs.

Further, according to the elevator rail oil supply device of the fourth aspect, the oil tank is replaced by disconnecting the oil supply pipe and the pump from the oil tank.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. Example 1. FIG. 1 is a perspective view showing an elevator rail oil supply device according to a first embodiment of the present invention, and FIG. 2 is a configuration diagram of the device of FIG. 1. The same or corresponding parts as in FIG. Is omitted.

In the figure, 5 is an oil tank installed on the upper beam 2 and filled with oil A, 6 is provided on the oil tank 5, and
A pump for supplying the oil A therein to the oil fillers 42-1 and 42-2, 7 is a pump control panel as a controller for controlling the drive of the pump 6, and 71 is an upper end connected to the pump 6 and a lower end. Suction pipes whose parts are inserted into the oil tank 5, 72, 7
2-1 and 72-2 are the pump 6 and the lubricators 42-1 and 42-
Refueling pipes 7-1, 73-, connected between
2 is a return pipe for returning the oil A, which has exceeded the upper limit position of the oil level in the oil supply units 42-1 and 42-2, to the oil tank 5, 8-1, 8
Reference numeral -2 is a float switch as a detector for detecting the amount of oil in the oil fillers 42-1 and 42-2, and 10 is a power source.

FIG. 3 is a block diagram showing the inside of the oil filler 42-1 of FIG. In the figure, 81-1 is a switch main body vertically installed in the lubricator 42-1 and 82-1 is floated on the oil A and moves vertically along the switch main body 81-1 as the oil level goes up and down. It is a float. Also, the switch body 8
Inside 1-1, ON contact 83-1 and OFF contact 84
-1 and -1 are provided. The ON contact 83-1 is disposed at substantially the same height as the set lower limit position L, which is located slightly above the bottom surface of the fuel filler 42. In addition, the OFF contact 84-
1 is disposed slightly below the return pipe 73-1, that is, at substantially the same height as the set upper limit position H. These contacts 8
Each of 3-1 and 84-1 is operated by the float 82-1 and outputs a detection signal to the pump control panel 7. The float switch 8-2 has the same configuration.

Next, the operation of the first embodiment will be described. When the oil A in the oil fillers 42-1 and 42-2 is reduced and the oil level thereof is lowered, the float 82-
1, 82-2 also descends. Then, when the oil level drops to the set lower limit position L, the ON contacts 83-1 and 83-2 are operated, and the detection signal is output to the pump control panel 7. As a result, the pump 6 is driven and the oil A in the oil tank 5 is supplied to the oil supply device 42.
-1, 42-2.

Thereafter, when the oil A in the oil supply units 42-1 and 42-2 increases and the oil level rises, the floats 82-1 and 82-2 also rise accordingly. When the oil level rises to the set upper limit position H, the OFF contact 84-1
(84-2) is operated and the detection signal is pump control panel 7
Is output to. As a result, the pump 6 is stopped.

By the way, referring to FIG.
If the decrease in the oil A in the oil supply unit 42-2 is faster than the decrease in the oil A in the oil supply unit 42-2, the float 82-1 is the float 82-1.
The set lower limit position L is reached before 2 and the pump 6 is started. Then, the float 8 of the fuel filler 42-2
2-2 reaches the set upper limit position H earlier than the float 82-1 of the fuel filler 42-1.

In such a case, in the oil supply unit 42-2, although the oil level of the oil A has reached the set upper limit position H, the oil supply will continue, but such overflowed oil A is Since it is led out from the return pipe 73-2 and returned to the oil tank 5, the oil A in the oil supply unit 42-2 is maintained at an appropriate amount. This is the same when the oil A of the oil supply unit 42-2 first decreases to the set lower limit position.

As described above, according to this embodiment, the lubricator 4
Since an appropriate amount of oil A can be automatically supplied to the 2-1 and 42-2, the oil can be always stored in the oil supply units 42-1 and 42-2. As a result, abnormal noise and wear are prevented, and the time and effort required for maintenance work of the guide rail 1 are reduced.

Although the float switches 8-1 and 8-2 are shown as detectors in the above embodiment, the detectors are not limited to these.

Example 2. Next, a second embodiment of the present invention will be described. FIG. 4 is a configuration diagram illustrating an elevator rail oil supply device according to a second embodiment of the present invention. Example 2
Connect the solenoid valves 90-1, 90-2 to the oil supply pipes 72-1,
72-2 is different from that of the first embodiment. That is, as shown in FIG. 4, the solenoid valves 90-1 and 90-2 are controlled to be opened and closed to adjust the amount of oil supplied to the oil supply units 42-1 and 42-2.

FIG. 5 is a control circuit diagram of the apparatus shown in FIG. In the figure, reference numeral 61 is a pump starting relay for starting the pump 6, which is connected in series to contacts 62-1 and 62-2 which are parallel to each other. Reference numeral 85-1 is a relay activated by the float switch 8-1, and the relay 85-1 is connected to the contacts 83-1 and 84-1 in series. 85-
2 is a relay activated by the float switch 8-2. This relay 85-2 has contacts 83-2, 84-2.
Are connected in series.

91-1 and 91-2 are solenoid valves 90, respectively.
-1, 90-2 solenoid valve drive relay, 92-
1 and 92-2 are solenoid valve drive relays 91-1 and 9-1, respectively.
The relay 85 is a contact that is connected in series to 1-2.
It is designed to work with -1,85-2. That is, when the solenoid valve drive relays 91-1 and 91-2 are turned on, the solenoid valves 90-1 and 90-2 shown in FIG. 4 are opened. However, such a control circuit is an example,
It is also possible to perform control by another circuit or computer.

With this configuration, for example, the oil supply unit 42-1
Oil A of FIG.
Comes to the set lower limit position L, that is, the position of the ON contact 83-1 and the ON contact 83-1 operates, the relay 85-1 shown in FIG. 5 is turned on, the contact 62-1 is closed, and the pump The start relay 61 is turned on. At the same time,
The contact 92-1 is closed in conjunction with the relay 85-1, the solenoid valve drive relay 91-1 is turned on, and the solenoid valve 90-1 is opened. As a result, only the oil supply pipe 72-1 is opened, and the oil A is supplied only to the oil supply device 42-1.

As a result, only the oil A in the oil supply unit 42-1 increases, and in FIG. 3, the float 82-1 comes to the set upper limit position H, that is, the position of the OFF contact 84-1, and the OFF contact 84-1. Is operated, the relay 85-1 shown in FIG. 6 is turned off and the contact 62-1 is opened. At the same time, the contact 92-1 is opened in conjunction with the relay 85-1, the solenoid valve drive relay 91-1 is turned off, and the solenoid valve 90-
1 closes. As a result, the refueling pipe 72-1 is closed,
Since the oil supply to the oil supply unit 42-1 is stopped, an appropriate amount of oil A is supplied to the oil supply unit 42-1 without causing an overflow.
1 can be maintained.

As described above, according to the second embodiment, the solenoid valves 90-1, interlocking with the float switches 8-1, 8-2,
90-2, refueling device 42-of the side requiring replenishment
Since the oil A is supplied only to the oil tanks 1 and 42-2, the oil A is not circulated unnecessarily.
It is possible to efficiently replenish the oil A with the oil.

Finally, a third embodiment of the present invention will be described. FIG. 6 is a configuration diagram showing an elevator rail oil supply device according to a third embodiment of the present invention. In the third embodiment, the oil tank 5
Is different from each of the above-described embodiments in that an indicator is provided to indicate that the amount of oil has decreased.

In the figure, reference numeral 50 is an oil tank storage box for storing the oil tank 5, 51 is a pair of springs provided in the oil tank storage box 50 for urging the oil tank 5 upward, and 100 is the oil tank 5.
It is a replenishment limit detection switch as an oil tank detector provided inside. This replenishment limit detection switch 100 is
A switch body 101 having a contact 102 at the lower inside,
The switch body 101 engages with the switch body 101
And a float 103 that moves up and down along with the oil surface of the oil A. The float 103 has a magnet (not shown), and the contact 102 arranged at the set lower limit position M.
When it comes to the position, the magnetic force causes the contact point 102 to be turned on.

As described above, both ends of the contact point 102 controlled by the float 103 are connected to the power source 10 provided in the machine room of the elevator device, and the lamp 110 and the buzzer 111 as the notifying means are provided between them. An oil tank weight detection switch 120 as an oil tank detector is connected. The lamp 110 and the buzzer 111 are arranged in the machine room, and the display can be known in the machine room. In the oil tank weight detection switch 120, the terminal 121 biased to the arrow B side in the figure has a side surface 52 of the oil tank 5.
When it comes off, it will conduct.

With this structure, the oil A in the oil tank 5 is reduced, and the float 103 is set at the lower limit position M, that is, the contact 102.
When it comes to the position, the contact 102 is connected. When the oil A decreases in this way, the oil tank 5 becomes lighter and is lifted by the urging force of the spring 51. Then, the terminal 121 of the oil tank weight detection switch 120 is connected to the side surface 5 of the oil tank 5.
2, the oil tank weight detection switch 120 becomes conductive.

That is, when the oil A in the oil tank 5 is almost exhausted, the replenishment limit detection switch 100 and the oil tank weight detection switch 120 are turned on, and the current of the power source 10 flows to the lamp 110 and the buzzer 111. The lamp 110 lights up and the buzzer 111 sounds. Therefore, since the maintenance person can know the necessity of replenishing the oil A to the oil tank 5 in the machine room, it is not necessary to check the amount of the oil A in the oil tank 5 on the car on a regular basis.

In the third embodiment, the lamp 1
Although 10 and the buzzer 111 are provided, only one of the lamp 110 and the buzzer 111 may be used to indicate the necessity of replenishment, or other means may be used.

Further, although the replenishment limit detection switch 100 and the oil tank weight detection switch 120 are shown as the oil tank detector in the third embodiment, either one may be used or another one may be used. .

Further, in each of the above embodiments, the case where the dedicated oil tank 5 is used has been described, but the oil supply pipe or pump may be detachable from the oil tank, and the oil tank may be replaceable. It can be used as it is as an oil tank. In this case, there is no need to replenish the oil tank, and when the oil in the oil tank has decreased, it is only necessary to replace it with a new oil can.

Furthermore, in the above embodiment, the oil supply to the guide rails on the car side is shown, but the present invention can be applied to an oil supply device to the guide rails on the counterweight side.

[0039]

As described above, in the rail lubrication device for an elevator according to the first aspect of the present invention, the oil tank in which sufficient oil is filled is connected to the lubricator, and the amount of oil in the lubricator is detected by the detector. When it is necessary to supply oil to the lubricator, the pump is driven to automatically supply the oil from the oil tank to the lubricator, so it is possible to supply oil to the lubricator more reliably and easily. As a result, it is possible to more reliably prevent the occurrence of abnormal noise and wear, and it is possible to reduce the trouble of maintenance and inspection.

Further, in the rail oil supply device for an elevator according to a second aspect of the present invention, the oil supply pipe for supplying oil from the oil tank to the plurality of oil supply devices is provided with a valve that opens and closes according to the information from the detector of each oil supply device. Therefore, in addition to the same effect as the invention of claim 1, only the valve provided on the oil supply pipe leading to the oil supply device requiring replenishment is opened, and the oil can be supplied to the oil supply device not requiring replenishment. You can prevent it from becoming too much,
An effect that oil can be efficiently replenished to the oil dispenser is obtained.

Further, the rail oil supply device for an elevator according to a third aspect of the present invention is provided with an oil tank detector for detecting the amount of oil in the oil tank and a machine room. The oil tank detector is provided in accordance with information from the oil tank detector. Since the notifying means for notifying whether or not the oil needs to be supplied to the oil tank is provided, it is possible to easily know that the oil tank needs to be supplied with the oil, in addition to the effect similar to that of the first aspect of the invention. As a result, it is possible to further reduce the trouble of maintenance and inspection.

Furthermore, in the rail oil supply device for an elevator according to the invention of claim 4, the oil supply pipe and the pump are attachable to and detachable from the oil tank, and the oil tank is replaceable. In addition to the same effects as the invention,
Since a commercially available oil can or the like can be used as the oil tank, it is possible to eliminate the need for oil supply work to the oil tank, and it is possible to further reduce the trouble of maintenance and inspection.

[Brief description of drawings]

FIG. 1 is a perspective view showing an elevator rail oil supply device according to a first embodiment of the present invention.

FIG. 2 is a block diagram of the apparatus of FIG.

FIG. 3 is a configuration diagram showing the inside of the oil filler of FIG. 2.

FIG. 4 is a configuration diagram showing a rail oil supply device for an elevator according to a second embodiment of the present invention.

5 is a control circuit diagram of the apparatus of FIG.

FIG. 6 is a configuration diagram showing a rail oil supply device for an elevator according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing an example of a conventional rail oil supply device for an elevator.

[Explanation of symbols]

 1 Guide Rail 5 Oil Tank 6 Pump 7 Pump Control Panel (Controller) 8-1 Float Switch (Detector) 8-2 Float Switch (Detector) 42-1 Lubricator 42-2 Lubricator 72-1 Lubricating Pipe 72- 2 Oil supply pipe 90-1 Electromagnetic valve 90-2 Electromagnetic valve 100 Replenishment limit detection switch (oil tank detector) 110 Lamp (informing means) 111 Buzzer (informing means) 120 Oil tank weight detection switch (oil tank detector)

Claims (4)

[Claims] 1. A lubricator mounted on a car or a counterweight for applying oil to a guide rail, an oil tank connected to the lubricator via an oil pipe, and between the lubricator and the oil tank. A pump that is provided to supply the oil in the oil tank to the oil supply device, a detector that detects the amount of oil in the oil supply device, and the drive of the pump is controlled according to the information from the detector. A rail lubrication device for an elevator, comprising: a controller. 2. A plurality of oil fillers are provided, and a valve for opening and closing according to information from a detector of each oil filler is provided in an oil supply pipe for supplying oil from the oil tank to each oil filler. The rail refueling device for an elevator according to claim 1, wherein the rail refueling device is provided. 3. An oil tank detector for detecting the amount of oil in the oil tank, and whether or not it is necessary to supply oil to the oil tank according to information from the oil tank detector provided in the machine room. An elevator rail lubrication system according to claim 1 or 2, further comprising: an informing unit for informing. 4. The elevator according to claim 1, wherein the oil supply pipe and the pump are detachable from the oil tank, and the oil tank is replaceable. Rail lubricator.