JP2022181431A - Compensation-rope oil feed device - Google Patents

Abstract

To provide a compensation-rope oil feed device that eliminates the need for an operator to climb up on a compensation sheave cover in order to add lubricating oil in a compensation-rope oil feed operation.SOLUTION: An oil feed device 10 that feeds lubricating oil to a compensation rope 90 of an elevator 80 includes: a tank 20 for storing the lubricating oil; a discharge unit 30 that is provided on a compensation sheave cover 92 covering a compensation sheave 91 around which the compensation rope 90 is wound, and that discharges the lubricating oil to the compensation rope 90; and a pump 40 that pumps the lubricating oil, stored in the tank 20, to the discharge unit 30.SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a compen rope lubricating device for lubricating compen ropes of an elevator.

An elevator is a device that raises and lowers people or luggage on a car. The car is connected to the counterweight by main ropes. Elevator compensating ropes are ropes that reduce the imbalance in the weight of the main rope between the car side and the counterweight side due to the lifting and lowering of the car. The compen rope connects the lower part of the car and the lower part of the counterweight (for example, Patent Document 1).

A compensating rope is wound compensatingly in a pit provided below the hoistway. The compensating rope travels in contact with the compensating sieve. Therefore, it is necessary to regularly lubricate the compen rope. Lubricating oil is supplied to the compensating rope during maintenance and inspection work by a lubricating device provided on a compensating cover that covers the compensating sheave.

JP 2018-184252 A

However, in elevators installed in high-rise buildings, the length of the compensating rope is long, so it was necessary to replenish the lubricating oil many times in the lubricating device. Therefore, it was necessary for the operator to repeatedly move up and down between the compensating cover and the pit floor using a stepladder while holding the lubricating oil can. As described above, in the past, especially in elevators installed in high-rise buildings, workability of compensating rope lubrication work was poor.

SUMMARY OF THE INVENTION An object of the present invention is to provide a compensating rope lubricating device that eliminates the need for a worker to climb onto a compensating cover to replenish lubricating oil during compensating rope lubrication work.

A compensating rope lubricating device according to the present invention includes a tank for storing lubricating oil, a discharge part provided in a compensating cover covering a compensating sheave around which a compensating rope is wound, for discharging lubricating oil to the compensating rope, and a tank. and a pump for pressure-feeding the lubricating oil stored in to the discharge part.

Preferably, the compensating rope lubricating device according to the present invention further includes a detection unit that detects travel of the compensating rope, and pumps the lubricating oil by the pump when the compensating rope travels is detected by the detecting unit.

In the compensating rope lubricating device according to the present invention, there are a plurality of compensating ropes, and the discharge section includes a plurality of nozzles for discharging lubricating oil toward each compensating rope, and a plurality of nozzles for accumulating lubricating oil to lubricate the nozzles. It is preferred to have a distributor for distributing the oil.

According to the compensating rope lubricating device according to the present invention, it is not necessary for the operator to climb onto the compensating cover in order to top up the lubricating oil. As a result, it is possible to improve the lubrication workability of the compensating rope.

It is a mimetic diagram showing an elevator concerning an embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the compen rope lubrication apparatus which is an example of embodiment. BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the compen rope lubrication apparatus which is an example of embodiment.

An example of an embodiment of the present invention will be described in detail below. In the following description, specific shapes, materials, directions, numerical values, etc. are examples for facilitating understanding of the present invention, and can be appropriately changed according to usage, purpose, specifications, and the like.

An elevator 80 according to an embodiment will be described with reference to FIG. FIG. 1 is a schematic diagram showing an elevator 80. As shown in FIG.

As shown in FIG. 1, the elevator 80 is provided in a hoistway 81 formed within the building. The elevator 80 includes a car 82 that carries people or cargo and ascends and descends in the hoistway 81, a counterweight 83 that balances the weight with the car 82, and a main rope that connects the car 82 and the counterweight 83. 84 and a hoist 85 for raising and lowering the car 82 .

The car 82 is supported by brackets 86 . One end of the main rope 84 is connected to the top of the bracket 86 . On the other hand, the other end of the main rope 84 is connected to the upper portion of the counterweight 83 . Thereby, the car 82 is connected to the counterweight 83 via the main rope 84 .

The hoisting machine 85 is arranged in a machine room 87 provided in the upper part of the hoistway 81 and raises and lowers the car 82 by driving a drive sheave around which the main rope 84 is wound. In the vicinity of the hoisting machine 85, a deflection wheel 88 around which the main rope 84 is wound is provided.

In the elevator 80, the car 82 moves up and down in the hoistway 81 along the car-side guide rail (not shown) by driving the hoist 85, and the counterweight 83 moves along the counterweight-side guide rail (not shown). It goes up and down in the hoistway 81 along.

In the elevator 80 , the length of the main rope 84 from the hoist 85 to the car 82 changes depending on the position of the car 82 when the moving distance of the car 82 and the counterweight 83 in the vertical direction increases. As a result, due to the weight of the main rope 84 itself, the difference between the weight of the main rope 84 on the side of the car 82 starting from the hoisting machine 85 and the weight on the side of the counterweight 83 starting from the hoisting machine 85 becomes large. growing.

In order to solve the above-described problem, the elevator 80 is provided with a compensating rope 90 in order to reduce the difference between the weight of the main rope 84 on the car 82 side and the weight on the counterweight 83 side. A compen rope 90 is connected to connect the lower part of the car 82 and the lower part of the counterweight 83 .

A compensating rope 90 according to an embodiment will be described with reference to FIGS. 1 to 3. FIG. FIG. 2 is a side view showing the compensating rope 90 wound around the compensating sleeve 91. FIG. FIG. 3 is a plan view showing the compensating cover 92. FIG.

As shown in FIGS. 1 to 3, the elevator 80 rotatably supports a plurality of (six in this example) compensating ropes 90, a compensating sheave 91 around which the compensating ropes 90 are wound, and the compensating sheave 91. Also, a compensating cover 92 for covering the compensating cover 91 and compensating rails 93 supporting the compensating cover 92 so as to be vertically movable are further provided.

The compensating sieve 91 , the compensating cover 92 , and the compensating rail 93 are provided in a pit 95 provided below the hoistway 81 .

Hereinafter, as shown in FIGS. 2 and 3, the vertical direction and the direction in which a plurality of compensating ropes 90 are arranged perpendicular to the vertical direction are defined as the width direction, and the radial direction of the compensating rope 91 orthogonal to the vertical direction and the width direction is defined as the width direction. The depth direction will be described.

The compensating rope 90 reduces the difference between the weight of the car 82 side and the weight of the counterweight 83 due to the difference in the length of the main rope 84 as described above. One end of the compen rope 90 is connected to the lower portion of the bracket 86 that supports the car 82 . Also, the other end of the compensating rope 90 is connected to the lower portion of the counterweight 83 .

The compensive cover 92 is formed in the shape of a box that rotatably supports the compensive 91 and covers the compensive 91 as described above. An opening 92A for the compensating rope 90 to pass through is formed in the upper surface of the compensating cover 92 . The openings 92A are provided at both ends in the depth direction, and are formed in a long hole shape along the width direction.

The compen rail 93 is erected from the floor of the pit 95 . In the compensating rail 93, the tension of the compensating rope 90 is adjusted by moving the compensating cover 92 up and down.

Since the compensating rope 90 travels in contact with the compensating sheave 91, it is necessary to periodically supply lubricating oil. When lubricating oil is supplied to the compensating rope 90 during maintenance and inspection work, the lubricating apparatus 10, which will be described later in detail, is used.

A fueling device 10, which is an example of an embodiment, will be described with reference to FIGS. 2 and 3. FIG. FIG. 2 is a side view showing the fueling device 10. FIG. FIG. 3 is a plan view showing the compensive 92 side of the fueling device 10. As shown in FIG.

The lubricating device 10 is a device that lubricates the compensating rope 90 of the elevator 80 with lubricating oil as described above. According to the lubricating device 10, the operator does not need to climb onto the compensating cover 92 to top up the lubricating oil. As a result, it is possible to improve the lubrication workability of the compensating rope 90 .

The lubricating device 10 includes a tank 20 that stores lubricating oil, a discharge portion 30 that is provided on a compensating cover 92 and discharges the lubricating oil to the compensating rope 90, and the lubricating oil stored in the tank 20 to the discharge portion 30. A pump 40 for pumping, a detection unit 50 for detecting running of the compensating rope 90, and a controller 60 for controlling the operation or stop of the pump 40 are provided.

The tank 20 is a container that stores lubricating oil as described above, and is placed on the floor of the pit 95 . It is preferable that the tank 20 can visually recognize the liquid level of the lubricating oil stored from the outside, and preferably has a scale so that the remaining amount of the lubricating oil can be confirmed from the liquid level of the stored lubricating oil. The capacity of the tank 20 is such that the amount of lubricating oil to be supplied to six compensating ropes 90 in one lubrication operation can be sufficiently stored.

The discharge part 30 is mounted on the upper surface of the compensating cover 92 and discharges lubricating oil to the compensating rope 90 passing through one opening 92A. The discharge unit 30 includes a plurality of (six in this example) nozzles 31 that discharge the lubricant toward the respective compensating ropes 90, and a distributor 32 that accumulates the pressure of the lubricant and distributes the lubricant to the plurality of nozzles 31. , a base plate 33 to which a distributor 32 is fixed, a distribution pipe 34 connecting the nozzle 31 and the distributor 32, and a connection pipe 35 connecting the pump 40 and the distributor 32. As shown in FIG.

The nozzle 31 discharges lubricating oil toward the compensation rope 90 as described above. The nozzles 31 are arranged at the edge of one of the openings 92A, and are arranged such that the tips of the nozzles 31 are close to the compen ropes 90 passing through the openings 92A.

The nozzle 31 is configured so that the discharge amount can be adjusted by adjusting the throttle amount. Further, the nozzle 31 is configured so that the discharge amount can be reduced to 0 by fully closing the throttle amount. As a result, the lubricating oil can be discharged from only the required number of nozzles 31 in accordance with the number of compensating ropes 90 that require lubrication.

The distributor 32 is a container elongated in the width direction, accumulates the pressure of the lubricating oil pressure-fed from the pump 40 , equalizes the pressure, and distributes the lubricating oil to the respective distribution pipes 34 .

The base plate 33 , to which the distributor 32 is fixed, is placed on the upper surface of the compensating cover 92 . The base plate 33 is attracted to the top surface of the compensive cover 92 made of steel by the magnets 36 . Magnet 36 may be a removable magnet. A detachable magnet is a magnet having a mechanism that allows the magnet 36 to be moved by lever operation, for example, and can switch between a state of being attracted to the compensatory cover 92 and a state of being released from being attracted to the compensatory cover 92. is.

The distribution pipe 34 is a flexible pipe, and the position of the nozzle 31 can be adjusted. The connection pipe 35 is a flexible pipe, and the position of the distributor 32 can be adjusted.

The discharge part 30 can be removed from the compensatory cover 92 by releasing the attraction of the magnet 36 except during maintenance and inspection. Further, according to the discharge section 30, the attraction of the magnet 36 can be released to adjust the position of the base plate 33 on the upper surface of the compensating cover 92, and the bending of each distribution pipe 34 can be adjusted to adjust each nozzle 31. position can be fine-tuned.

The pump 40 pressure-feeds the lubricating oil stored in the tank 20 to the discharge portion 30 as described above. In this example, the pump 40 is placed on top of the tank 20, but may be placed on the floor of the pit 95 as well.

The detector 50 detects running of the compensating rope 90 as described above. The detection unit 50 is placed on the upper surface of the compensating cover 92 so as to face the nozzle 31 with the compensating rope 90 interposed therebetween. The detection unit 50 may be configured to magnetize the compensating rope 90 and detect a change in magnetic flux caused by the running of the magnetized compensating rope 90 . Further, the detection unit 50 may be configured to detect rotation of the compensive 91 .

The controller 60 is connected to the pump 40 and the detector 50 and controls operation or stop of the pump 40 . In this example, the controller 60 is placed on top of the tank 20 together with the pump 40 , but may be placed on the floor of the pit 95 together with the pump 40 .

The controller 60 has an operational fuel supply switch 61 for switching ON or OFF of the operational fuel supply mode, and a forced fuel supply switch 62 for switching ON or OFF the forced operation mode. In the operation refueling mode, the pump 40 is operated only when the detection unit 50 detects that the compensating rope 90 is traveling. In other words, in the operating refueling mode, the operation of the pump 40 is synchronized with the travel of the compensating rope 90 . The forced lubrication switch 62 always drives the pump 40 . When both the operational fuel supply switch 61 and the forced fuel supply switch 62 are ON, priority is given to the operational fuel supply mode.

Below, the oil supply operation|work of the compensating rope 90 using the oil supply apparatus 10 mentioned above is demonstrated.

First, an operator places the tank 20 on the floor of the pit 95 and places the pump 40 and the controller 60 on the tank 20 . Note that the pump 40 and the controller 60 may be placed on the floor of the pit 95 .

Next, the operator places the discharge part 30 on the compensating cover 92 and adjusts the position of the base plate 33 so that each nozzle 31 approaches the corresponding compensating rope 90 . Also, the bending of each distribution pipe 34 is adjusted to bring each nozzle 31 closer to each corresponding compensating rope 90 .

Next, the operator fills the tank 20 with lubricating oil. Since the tank 20 is placed on the floor surface of the pit 95 as described above, the operation of refueling the tank 20 can be easily performed. Then, the compulsory oil supply switch 62 of the controller 60 is turned on to adjust the throttle amount of the nozzle 31 to adjust the appropriate amount of lubricating oil to be discharged. An appropriate amount of lubricating oil to be discharged is determined by the judgment of the operator based on the air temperature during work, the rope diameter of the compensating rope 90, and the oil depletion condition of the compensating rope 90.

Next, the operator turns on the operation lubrication switch 61 of the controller 60 and causes the elevator 80 to make one reciprocation at low speed. At this time, the lubricating oil is supplied to the compen rope 90 by the lubricating device 10 in synchronization with the travel of the compen rope 90 . When refueling is completed, the discharge part 30 on the compensating cover 92 is removed, and the refueling device 10 is removed from the pit 95 .

It should be noted that the present invention is not limited to the above-described embodiments and modifications thereof, and it goes without saying that various modifications and improvements are possible within the scope of the matters described in the claims of the present application. .

For example, in this example, the nozzle 31 of the lubricating device 10 is configured to discharge the lubricant onto the compensating rope 90. lubricating oil can be supplied to

10 lubrication device, 20 tank, 30 discharge part, 31 nozzle, 32 distributor, 33 base plate, 34 distribution pipe, 35 connection pipe, 36 magnet, 40 pump, 50 detection part, 60 controller, 61 operation lubrication switch, 62 forced lubrication switch, 80 elevator, 81 hoistway, 82 car, 83 counterweight, 84 main rope, 85 hoist, 86 bracket, 87 machine room, 88 deflection wheel, 90 compensating rope, 91 compensating, 92 compensating cover, 92A opening, 93 compen rail, 95 pit

Claims (3)

A compen rope lubricating device for lubricating a compen rope of an elevator,
a tank that stores the lubricating oil;
a discharge part provided in a compensating cover that covers a compensating sheath around which the compensating rope is wound and that discharges the lubricating oil to the compensating rope;
a pump that pressure-feeds the lubricating oil stored in the tank to the discharge part;
comprising
Compen rope lubrication device. The compen rope lubrication device according to claim 1,
Further comprising a detection unit that detects running of the compensation rope,
pumping the lubricating oil by the pump when the running of the compensation rope is detected by the detection unit;
Compen rope lubrication device. The compen rope lubrication device according to claim 1 or 2,
A plurality of compen ropes,
The discharge unit includes a plurality of nozzles that discharge the lubricant toward each of the compensating ropes, and a distributor that accumulates the pressure of the lubricant and distributes the lubricant to the plurality of nozzles.
Compen rope lubrication device.

Images