JPH09278318A - Oil feeder for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an oil feeder for an elevator that can readjust oil feeding timing to the elongation of a rope. SOLUTION: The maintenance operation of an elevator is performed for the action test of an up limit switch 8, and when a car 1 is lifted further upward from a normal upper limit position, a roller of a driving device 4 rolls up on a position detecting device 11 to put an oil feeding pump device 16 in oil feeding action on the car 1 side. In order to synchronously put an oil feeding pump device 30 in oil feeding action, the position of a movable member 33 of a position detecting device 32 is adjusted so that a driving device 31 comes in contact with the movable member 33 on the counterweight 5 side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator oil supply apparatus for supplying lubricating oil to an elevator guide rail or the like.

[0002]

2. Description of the Related Art As a conventional elevator oil supply apparatus, for example, an automatic oil supply apparatus for supplying lubricating oil to an elevator guide rail is disclosed in Japanese Patent Laid-Open No. 54-3745, in which an oil tank section and an oil supply section are provided. A woolen thread is placed between them, and an oil supply plate made of fibrous material such as felt placed on the woolen thread is installed in the oiling section to guide the oil in the oil tank section to the oiling section using the capillary action of the woolen thread. The oil supply plate of was impregnated with oil and the lubricating oil was sent to the guide rail.

[0003]

However, in the conventional elevator oil supply apparatus, in which oil is guided to the oil supply section by the capillary phenomenon of the yarn as described above, the oil is constantly sent to the felt regardless of the movement of the elevator car. Will be overfilled. In particular, if the car keeps moving almost like at night, but refueling continues, this oil will form a layer on the surface over the entire length of the guide rail, and when the car starts operation the next morning, it will be squeezed by the guide shoes. It is dropped and scattered around.

On the other hand, it is conceivable to configure the elevator oil supply device so as to supply oil in response to the operation of the car. For example, the present inventors have proposed a refueling device that refuels in synchronization with the operation of the up-limit switch during maintenance operation in which the car is moved above the upper limit of normal operation to test the operation of the up-limit switch. We examined it, but it was newly found that it works as set in the initial state, but it is not synchronized with the operation of the up-limit switch due to rope extension such as initial rope extension.

An object of the present invention is to provide an elevator oil supply apparatus capable of readjusting the oil supply timing in accordance with the rope extension.

[0006]

In order to achieve the above object, the present invention comprises a car and a counterweight connected by ropes, and a guide rail fixed to the hoistway wall so as to guide them respectively. In an elevator oil supply device having an oil supply pump device that operates at a predetermined position of the car and the balance weight to supply lubricating oil to a sliding portion with the guide rail, a predetermined value for each of the car and the balance weight. A position detecting device for operating the corresponding driving device of the oil supply pump device by contacting at the position, and one of the position detecting devices is provided with a movable member capable of adjusting a contact position with the driving device. Is characterized by.

In the elevator oil supply apparatus according to the present invention, as described above, one of the position detecting devices, for example, the position detecting device on the counterweight side is provided with the movable member capable of adjusting the contact position with the drive device. If elongation occurs,
By moving the movable member in the direction that delays the contact with the drive device, the refueling timing can be readjusted in accordance with the rope extension.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a side view showing a schematic configuration of an elevator having an elevator oil supply device according to an embodiment of the present invention. A sheave 14 of a hoisting machine arranged in a machine room is shown.
A rope 15 is wound around the rope 15, one end of the rope 15 is connected to the car 1 arranged so as to be able to move up and down along a guide rail (not shown), and the other end of the rope 15 can be moved up and down along another guide rail (not shown). It is connected to the placed counterweight 5. An oil supply pump device 16 whose details will be described later is installed on the upper portion of the car 1. In addition, an up-limit switch 8 that is located above the upper limit position of the normal operation of the car 1 and that operates during maintenance operation for the operation test is attached to the hoistway wall 17 above the car 1. ing. Further above the upper limit position of the normal operation of the car 1, the hoistway wall at a position that gives an operation command to the drive device 4 of the fuel pump device 16 during the maintenance operation process in which the operation test of the up-limit switch 8 is performed. A position detection device 11 is attached to 17. Further, when the position detection device 11 gives an operation command to the drive device 4 of the refueling pump device 16, the hoistway wall 17 on the counterweight 5 side is operated by the drive device 31 of the refueling pump device 30 on the counterweight 5 side. Position detection device 3 for giving a command
2 are installed. The position detecting device 32 will be described in detail later, but the movable member 3 that can expand and contract in the axial direction.
3 is provided, and this movable member 33 is a drive device 31.
Refueling pump device 3 via drive device 31 when contacted
An operation command is given to 0. Although the oil supply pump device 16 and the oil supply pump device 30 may have different configurations, they will be described here as having the same configuration.

FIG. 2 shows an oil supply pump device 16 shown in FIG.
It is a front view which expands and shows. An oil supply member 9 that is in contact with the guide surface of the guide rail 10 is attached to the attachment member 2 provided on the upper portion of the car 1, and an oil supply pump device 16 that supplies an appropriate amount of lubricating oil to the oil supply member 9 at a predetermined time. Is provided. The refueling pump device 16 includes a refueling tank device 3 supported by a mounting bracket 2a of a mounting member 2 provided on the upper portion of the car 1, and a drive device 4 that applies a predetermined amount of compression to the refueling tank device 3. Lubricating oil which is composed of an oil supply pump device and which is sent out by giving a predetermined compression amount to the oil supply tank device 3 is supplied to the oil supply member 9 through the oil supply pipe 6 from the nozzle 7 provided at the tip thereof. This drive 4
Is configured to operate when the roller 13 provided at the tip of the lever 26 comes into contact with the position detection device 11 mounted by the fixing device 12 at an appropriate position on the guide rail 10 or the hoistway wall to operate. . Further, the roller 13 of the drive device 4 does not come into contact with the position detection device 11 during the normal operation process of the car 1, so that the lubricating oil from the refueling tank device 3 may be discharged during the normal operation process of the car 1. It will not be supplied. However, when the car 1 moves further above the upper limit position of the normal operation and the maintenance operation is performed in which the operation test of the up-limit switch 8 is performed, the roller 13 of the drive device 4 rides on the position detection device 11. An operating force is applied to the driving device 4, and the oil supply tank device 3 is operated by this operating force to supply a predetermined amount of oil to the oil feed pipe 6
Further, the oil supply member 9 is supplied with oil via the nozzle 7.

FIG. 3 shows a refueling tank device 3 and a compression device 4.
It is sectional drawing which shows the detail of the oil supply pump apparatus 16 which consists of. The main body 14 of the oil supply pump device 16 has a cylindrical shape, and both ends thereof are closed by end covers 19 and 20, respectively. A piston 18 is slidably fitted in the main body 14, and a stretchable tank 21 filled with lubricating oil is housed in an upper cylinder chamber formed above the piston 18, A spring 22 for constantly urging the piston 18 upward is housed in a lower cylinder chamber formed below the. A threaded portion 19a into which the threaded portion of the tank 21 is screwed is formed in the central portion of the end cover 19 on the upper cylinder chamber side, and the tank 21 in an unused state is stored by capping the threaded portion. However, in the case of incorporating it into the fuel tank device 3, the installation is completed by removing the cap and screwing the screw portion into the screw portion 19a.

The upper end of the drive shaft 23 is connected to the center of the piston 18, and the lower end of the drive shaft 23 is led out from the end cover 20. A plurality of engaging portions 2 are arranged in the axial direction of the drive shaft 23.
3a to 23c are formed, and these engaging portions 23a to 23c are formed.
An engaging body 24 that engages with each of c and blocks the upward movement of the piston 18 and the drive shaft 23 by the spring 22 is supported by a holding portion 25 fixed to the end cover 20. The engagement body 24 rotates the lever 26 of the drive device 4 counterclockwise about the rotation shaft 26a, that is,
When the position detecting device 11 rides on and is rotated, the engagement with the engaging portion 23a is forcibly disengaged, the piston 18 and the drive shaft 23 are allowed to move upward by the spring 22, and the engaging portion Engaging portion 23b, which is one lower than 23a
The piston 18 and the drive shaft 2 by the spring 22 engaging with
3 is configured to prevent upward movement. By the operation of the piston 18 and the drive shaft 23 from the engaging portion 23a to the engaging portion 23b, the tank 21 is compressed by a predetermined volume, and the lubricating oil injected into the tank 21 is fed out from the oil feeding pipe 6 to the tip. The oil is supplied to the oil supply member 9 through the provided nozzle 7. The supply amount of the lubricating oil at this time is determined by the compression volume of the tank 21, but is determined so that the oil supply to the guide rail is not necessary until the next supply during the maintenance operation.

During steady operation of the elevator, the drive device 4 does not come into contact with the position detection device 11, so the oil supply pump device maintains the state of FIG. 3 and oil is supplied to the guide rails.
It is performed by using the lubricating oil previously supplied to the oil supply member 9. Therefore, when the elevator maintenance operation is performed for the operation test of the up-limit switch 8,
It is necessary to supply lubricating oil to the oil supply member 9.

Now, when the elevator maintenance operation is performed for the operation test of the up-limit switch 8 and the car 1 of FIG. 1 is further raised above the upper limit position during normal operation, the drive device 4 The roller 13 rides on the position detecting device 11 and rotates the lever 26 counterclockwise. Then, since the engagement body 24 is forcibly disengaged from the engagement portion 23b by the rotation of the lever 26, the piston 18 and the drive shaft 23 are driven upward by the spring 22 and the next engagement portion 23c. The piston 18 and the drive shaft 23 are engaged to stop the operation. By the upward movement of the piston 18 during this time, the tank 21 is compressed by a predetermined amount, and the oil supply pump device 16 sends out a predetermined amount of lubricating oil inside and supplies oil from the nozzle 7 to the oil supply member 9. After that, when the maintenance operation is completed and the elevator returns to the normal operation, the guide rail is refueled by the lifting and lowering of the car 1 through the refueling member 9.

The oil supply pump device 30 has the same structure. When the drive device 4 is operated by the position detecting device 11, the drive device 31 of the oil supply pump device 30 comes into contact with the position detecting device 32 to operate, and the oil supply pump device 30 is operated. Thus, a predetermined amount of lubricating oil is supplied to a sliding portion with a guide rail (not shown).
Therefore, even on the side of the counterweight 5, refueling is performed in connection with the maintenance operation of the elevator performed for the operation test of the up-limit switch 8. However, it is possible to supply an appropriate amount of lubricating oil required until the next maintenance operation to the oil supply member 9 made of kapok fiber or the like.

However, the refueling pump device 16 on the side of the car 2 always performs refueling operation when the refueling pump device 16 on the side of the car 2 rises to a position in contact with the position detecting device 11, whereas the refueling pump device 30 on the side of the counterweight 5 is: The operation timing changes due to the extension of the rope 15. Therefore, as shown in FIG. 4, even if the rope is stretched, the position detection device 32 contacts the drive device 31 of the oil supply pump device 30 so as to perform the oil supply operation in synchronization with the oil supply pump device 16 on the side of the car 2. A shaft-shaped movable member 33 whose timing can be adjusted is provided. The position detecting device 11 is a cam-shaped protrusion, whereas the movable member 33 can adjust its position in the contacting / separating direction with the drive device 31. That is, the fixed member 34 attached to the hoistway wall has a fixing member 34a having a through hole,
34b and a swinging member 34c having a through hole and one end of which is supported by a fixed member 34 so as to be swingable at a predetermined angle, and the movable member 33 is inserted into the through holes of each of the plates 34a, 34b, 34c. The spring 35 is arranged between the fixing member 34b and the swinging member 34c. Therefore, the swinging member 34c is rotated clockwise, and the edge of the through hole fixes the movable member 33, and determines the position of the position detecting portion 33a. The spring 36 is also arranged between the fixing members 34a and 34b to prevent the spring 35 from displacing the fixing member 34b so that the spring 35 effectively acts on the swinging member 34c.

Initially, the movable member 3 is moved to the position shown by the solid line in FIG.
3 was installed, but when the initial elongation of the rope occurs, the car 2 side is stopped at a predetermined position, for example, a position where the oil supply pump device of the oil supply pump device 16 operates,
At this time, the drive device 31 of the oil supply pump device 30 on the counterweight 5 side is brought into contact with the position detection portion 33a. This releases the state in which the edge of the through hole blocks the movement of the movable member 33 by lowering the free end of the rocking member 34c against the spring 35, and the movable member 33 is indicated by the dotted line. The movable member 33 is lowered to a predetermined position, and then the free end of the rocking member 34c is returned to the original position so that the edge of the through hole blocks the movement of the movable member 33. By such a simple adjustment, the refueling device 16 on the side of the car 2 and the refueling device 30 on the side of the counterweight 5 can be synchronized.

As described above, the up-limit switch 8
Since the lubrication is performed in connection with the maintenance operation of the elevator performed for the operation test of the above, the lubrication member 9 is not lubricated until the maintenance operation of the elevator for the next operation test of the up-limit switch 8. However, an appropriate amount of lubricating oil required until the next maintenance operation can be supplied to the oil supply member 9 made of Kapok fiber or the like. Especially,
Since the maintenance operation of the elevator for the operation test of the up-limit switch 8 is performed at predetermined predetermined intervals, it is possible to replenish the lubrication member 9 with an appropriate amount of lubricating oil at an appropriate time. It is possible to prevent excessive refueling of the refueling member 9.

Engaging portions 23a to 23 formed on the drive shaft 23
When refueling is performed a number of times corresponding to the number c, the tank 21 becomes empty.
The end cover 19 is removed and the main body 18 to the tank 21 and the nozzle 7 are pulled out as a unit. After that, the empty tank 21 is removed from the screw portion 19a of the end cover 19, and then,
Insert the screw part of the inlet without cap of the new tank into the end cover 1
9 is screwed into the screw portion 19a. Before inserting this new tank into the main body 18, the drive shaft 23 is pulled downward in the drawing against the spring 22 so that the uppermost engaging portion 23a is engaged with the engaging body 24.
The end cover 19 is attached to the main body 18 while inserting a new tank into the main body 18 in this state.

In the above embodiment, the position detecting device 32 on the counterweight 5 side is provided with the movable member 33 to adjust the contact position with the driving device 31, but the position detecting device on the car 1 side is provided. A movable member may be provided at 11 so that the contact position with the drive device 4 can be adjusted. However, if the movable member 33 is provided in the position detection device 32 on the counterweight 5 side, it is easier to synchronize with the up-limit switch 8 and the adjustment work is easier because the work is performed at a lower position. is there. Further, both refueling pump devices 16 and 30 were operated in synchronization with the operation of the up-limit switch 8.
The same applies to the case where it is operated by another method. Further, the oil supply pump devices 16 and 30 may be provided on the hoistway wall 17 side and the position detection devices 11 and 33 may be provided on the elevator car side such as the car 1 and the counterweight 5 to reverse the relative positional relationship.

[0020]

As described above, in the elevator oil supply apparatus according to the present invention, when the lifting body reaches a predetermined position, the elevator oil supply apparatus is brought into contact with the position detection apparatus to cause the oil supply pump apparatus to perform the oil supply operation and to detect the position. Since the device is equipped with a movable member that can adjust the contact position with the drive device, even if rope extension occurs, the operation timing of the oil pump device on the car side and the counterweight side can be readjusted to a predetermined state to ensure proper operation. You can refuel at any time.

[Brief description of drawings]

FIG. 1 is a side view showing a schematic configuration of an elevator that employs an elevator oil supply device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of the oil supply pump device shown in FIG.

FIG. 3 is a cross-sectional view of a main part of the oil supply pump device shown in FIG.

FIG. 4 is an enlarged view of a main part of another oil supply pump device shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Car 4,31 Drive device 5 Balance weight 8 Up-limit switch 11,32 Position detection device 16,30 Oil supply pump device 33 Movable member 34a, 34b Fixed member 34c Swing member 35 Spring

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshihiko Matsuzaki 1-6 Kandanishikicho, Chiyoda-ku, Tokyo Within Hitachi Building System Service Co., Ltd. (72) Inventor Shuko Shigetomi 1-6, Kandanishikicho, Chiyoda-ku, Tokyo Address Incorporated company Hitachi Building System Service (72) Inventor Shigeyuki Sato 5-8-7 Shimbashi, Minato-ku, Tokyo Nanshin Kiko Co., Ltd. (72) Inventor Shigemasa Yamada 2-4 Otowa-cho, Kofu-shi, Japan Japan Oil Mixer Co., Ltd.

Claims (5)

[Claims] 1. A balance and a balance weight connected by a rope, and a guide rail fixed to a hoistway wall so as to guide them respectively, and operated at a predetermined position of the balance and the balance. In an elevator oil supply device having an oil supply pump device for supplying lubricating oil to a sliding portion with respect to a guide rail, the drive of the oil supply pump device which is brought into contact with each other at predetermined positions of the car and the counterweight. Providing a position detection device that operates the device,
A refueling device for an elevator, wherein a movable member capable of adjusting a contact position with the drive device is provided on one of the position detection devices. 2. The position detection device having the movable member according to claim 1, wherein the position detection device is provided corresponding to the drive device of the oil supply pump device provided on the counterweight side. Refueling equipment for elevators. 3. The position detecting device having the movable member according to claim 2, wherein the position detecting device is attached to the hoistway wall corresponding to the counterweight, and the oil supply pump device corresponding to the position detecting device is the counterweight. An elevator refueling device characterized by being attached to the. 4. A car and a counterweight connected by ropes, a guide rail fixed to the hoistway wall so as to guide them respectively, and operated when the car moves above the upper limit of normal operation. In an elevator oil supply device having two oil supply pump devices that respectively supply lubricating oil to the sliding parts between the up-limit switch and the guide rails, during the maintenance operation process for the operation test of the up-limit switch. And a position detection device for contacting the two oil supply pump devices to perform an oil supply operation, respectively, and the position detection device on the counterweight side includes:
An elevator oil supply device, comprising a movable member capable of adjusting a contact position with the oil supply pump device on the counterweight side. 5. The position detecting device on the counterweight side according to claim 4, wherein a fixed body fixed to the hoistway wall, one end of which is swingably attached to the fixed body, and a through hole is formed. The movable member having a swinging member, a fixing member having a through hole facing the through hole of the shaking member and fixed to the fixed body, and a spring arranged between the fixing member and the shaking member. A lubricator for an elevator, characterized in that a member is inserted into the both through holes and is held by the rocking member by the spring so that the position of the member can be adjusted.