JP2011230860A - Device for oiling of guide rail for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for oiling of a guide rail for an elevator, allowing reduction of soil by oil, reduction of oil consumption, and reduction of a maintenance working time taken for cleaning and an oil feed by preventing a surplus oil feed to a guide rail guiding upward/downward movement of a car of the elevator or a counterweight.SOLUTION: The device includes: detection rollers 2 abutting on the surface of the guide rail 1 guiding the upward/downward movement of the car of the elevator or the counterweight and rolling; and a movable oil feed part 8 allowing a changeover between contact and non-contact to the guide rail 1. The guide rail oil feeder detects whether an oil feed to the guide rail 1 is necessary by the rolling of the detection rollers 2 in time of upward/downward movement operation of the elevator, and performs the oil feed based on detection results thereof.

Description

  The present invention relates to an elevator guide rail oil supply device that applies lubricant to the surface of an elevator car or a guide rail that guides the lifting and lowering of a counterweight.

  Generally, a guide shoe is provided in an elevator car or a counterweight. The guide shoe engages with a guide rail provided in the hoistway to move up and down, thereby stabilizing the horizontal movement of the car or the counterweight. Lubricating oil is applied to the guide rail in order to make the sliding of the guide shoe smooth, and in order to improve riding comfort, it is important to apply appropriate lubricating oil.

  For this reason, a guide rail refueling device installed on a car or a counterweight has been used conventionally. This conventional guide rail oil supply device is composed of an oil tank and an oil supply member utilizing a capillary phenomenon, and automatically supplies lubricating oil by an oil supply member in contact with the guide rail. However, since this oil supply device is always in contact with the guide rail, there is a problem that oil supply is performed regardless of the operation of the elevator and the lubrication state of the rail, resulting in excessive oil supply. As a result of this excessive oil supply, there has been a cause of contamination due to excessive oil, an increase in oil consumption, and an increase in maintenance work time for cleaning and oil supply.

  Then, the guide rail oil supply apparatus which cut | disconnected the oil supply to a guide rail by moving the oil supply member in the direction which cancels | releases a contact with a guide rail after predetermined time has been proposed (for example, patent document 1). reference).

  In addition, a guide rail oil supply device has been proposed in which supply cotton for supplying oil to the guide rail is separable from the rail surface (see, for example, Patent Document 2).

  In addition, a guide rail oil supply device has been proposed in which a slider fitted to the guide rail is provided, and when the slider detects a lack of oil, oil is dropped and supplied to the rail surface (see, for example, Patent Document 3). ).

Japanese Utility Model Publication No. 63-045762 (Utility Model Registration Request Column, Fig. 1) Japanese Patent Laid-Open No. 06-278969 (Summary Column, FIG. 1) Japanese Utility Model Publication No. 61-105374 (Utility Model Registration Request Column, Fig. 1)

  The guide rail refueling device disclosed in the above-mentioned Patent Document 1 is a mechanism for releasing the oil supply to the guide rail by a timer operation. However, since maintenance needs to be performed by the maintenance staff, the remote inspection is used together as in the present. Therefore, it is not suitable for an elevator that performs a visit inspection once every three months. In addition, since the required amount of oil varies depending on the installation environment and the season and temperature, there is a problem that it is difficult to set the refueling time.

  In addition, the guide rail fueling device disclosed in Patent Document 2 is a mechanism for separating and contacting the supply cotton by electric control, but does not disclose a method for determining whether or not fueling is required. There is a problem in setting.

  Furthermore, the guide rail oil supply device disclosed in Patent Document 3 is a mechanism for supplying oil by operating an oil valve by the frictional force between the slider fitted to the guide rail and the rail. Since it is worn out by friction during operation, there has been a problem that frequent maintenance is required to maintain a certain detection level.

  The present invention has been made to solve the above-described problems, and is an elevator guide that prevents excessive lubrication, reduces fouling by oil, reduces oil consumption, and reduces maintenance work time for cleaning and lubrication. It aims at obtaining a rail oil supply apparatus.

  An elevator guide rail oil supply device according to the present invention is an elevator guide rail oil supply device that applies lubricant to the surface of an elevator car or a guide rail that guides the lifting and lowering of a counterweight, and the surface of the guide rail A detecting roller that rolls in contact with the guide rail, and a movable oil supply portion that can be switched between contact and non-contact with the guide rail, and whether or not the guide rail needs to be oiled when the elevator moves up and down. It detects by rolling of the said detection roller, and supplies oil based on the detection result.

  According to the present invention, the detection roller that rolls in contact with the surface of the elevator car or the guide rail that guides the lifting and lowering of the counterweight, and the movable oil supply unit that can be switched between contact and non-contact with the guide rail. When the elevator is moving up and down, it detects whether or not the guide rail needs to be refueled by rolling the detection roller, and refueling is performed based on the detection result, so the amount of oil to the guide rail can be controlled appropriately. Excessive lubrication can be prevented, reducing oil contamination, reducing oil consumption, and reducing maintenance work time for cleaning oiling.

It is a block diagram of the guide rail oil supply apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a control block diagram of the guide rail oil supply apparatus of the elevator which concerns on Embodiment 1 of this invention. It is a block diagram of the guide rail oil supply apparatus of the elevator in the non-oil supply state which concerns on Embodiment 1 of this invention. It is a block diagram of the guide rail oil supply apparatus of the elevator seen from the perpendicular direction which concerns on Embodiment 1 of this invention. It is a block diagram of the guide rail oil supply apparatus of the elevator which concerns on Embodiment 2 of this invention. It is a block diagram which shows the principal part of the guide rail oil supply apparatus of the elevator which concerns on Embodiment 3 of this invention.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a preferred embodiment of an elevator guide rail oil supply device according to the present invention will be described with reference to the accompanying drawings. It should be noted that the present invention is not limited to this embodiment, and includes various design changes.

Embodiment 1 FIG.
1 is a configuration diagram of an elevator guide rail oil supply apparatus according to Embodiment 1 of the present invention. In FIG. 1, a guide rail oil supply device 100 rolls due to friction with the guide rail 1, detects a lubrication state of the rail surface, a traveling direction of the car, and a rail surface position, and a detection signal of the detection roller 2. A control unit 4 that controls the driving of the motor 3 based on the above, an oiling member 5 that is made of a fiber bundle such as cotton, for example, which supplies oil to the guide rail 1, an oiling head 6 that moves by driving the motor 3, and an oiling member An oil tank 7 for supplying lubricating oil to 5 is provided.

  The motor 3 is configured to move the oil supply head 6 by a rack and pinion mechanism so as to switch between contact and non-contact of the oil supply member 5 with the guide rail 1. The motor 3 and the oil supply head 6 are used to move the movable oil supply unit 8. Is configured. Further, the detection roller 2, the control unit 4, the oil tank 7, and the movable oil supply unit 8 are fixed and held by a frame 9 made of an elastic member. Note that the detection roller 2, the oil supply member 5, and the movable oil supply unit 8 are attached to the frame 9 independently from the left and right with respect to the guide rail 1. And the guide rail oil supply apparatus 100 by the said structure is installed in the upper part of a passenger car or a counterweight.

  FIG. 2 is a control block diagram of the guide rail oil supply device 100. Reference numeral 20 denotes an encoder that detects the lubrication state of the rail surface, the traveling direction of the car, and the rail surface position based on the rolling speed and direction of the detection roller 2. A rotation detector is shown.

The elevator guide rail refueling device 100 according to the first embodiment is configured as described above. Next, a switching operation of refueling with respect to the guide rail 1 will be described.
The oil supply member 5 made of a fiber bundle such as cotton sucks up the lubricating oil from the oil tank 7 to the oil supply head 6 by a capillary phenomenon. When the car or the counterweight (both not shown) is stopped, the refueling head 6 is located away from the guide rail 1 and is not refueled to the guide rail 1 as shown in FIG. Become.

  The detection roller 2 is fixedly held by a frame 9 made of an elastic member, and is pressed against the guide rail 1 by the elastic force of the frame 9. The detection roller 2 rolls by friction with the guide rail 1 in accordance with the raising / lowering operation of the car or the counterweight, and detects the lubrication state of the rail surface, the traveling direction of the car, and the rail surface position.

  Here, when the guide rail 1 is in a sufficiently lubricated state, the detection roller 2 does not roll because it slides on the surface of the guide rail 1, and the detection roller 2 rolls in a state where the lubricating oil is insufficient and the friction coefficient is increased. To do. The detection roller 2 includes a rotation detector 20 (see FIG. 2) such as an encoder, and transmits the detected signal to the control unit 4.

  When the detection roller 2 detects, for example, traveling in the upward direction, the control unit 4 controls driving of the motor 3 in response to the detected signal, and the oil supply head 6 moves and guide rails as shown in FIG. 1 and contact state. Thereby, the oil supply from the oil supply member 5 provided in the oil supply head 6 to the guide rail 1 is performed.

  When the car or the counterweight stops or when the rail surface reaches a sufficiently lubricated state, the rolling of the detection roller 2 stops. Upon receiving this signal, the control unit 4 controls the drive of the motor 3 and switches the oil supply head 6 to the non-contact state as shown in FIG.

  The detection roller 2 and the movable oil supply unit 8 are attached to the frame 9 independently on the left and right sides with respect to the guide rail 1, and follow the horizontal movement by following the rail surface of the detection roller 2 and the elasticity of the frame 9. And can always move so as to contact the rail surface. Moreover, since the movable oil supply part 8 also moves following the frame 9, the oil supply head 6 can maintain the positional relationship in contact with the rail surface detected by the detection roller 2.

  FIG. 4 shows a configuration diagram of the guide rail fueling device 100 viewed from the vertical direction, and in this figure, reference numeral 40 denotes a guide shoe. As can be seen in FIG. 4, the detection roller 2 is located above the oil supply head 6. First, the detection roller 2 can detect the state of the rail surface in accordance with the traveling in the upward direction, and determine whether or not refueling is necessary. Since the guide shoe 40 is located on the lower side of the oil supply device 100, oil supply is possible immediately before the guide shoe 40 passes by supplying oil when the guide shoe 40 is raised. Even when traveling in the downward direction, the detection roller 2 detects the state of the rail surface and determines whether or not refueling is necessary. If the refueling is insufficient, refueling is performed. Since it is possible to cope with the next rise of the weight, the effect is slightly reduced compared with the case of traveling in the upward direction, but a corresponding effect can be obtained.

  As described above, according to the guide rail refueling device 100 for an elevator according to the first embodiment, the refueling to the guide rail 1 is performed only when the elevator is stopped and the rail surface is not sufficiently lubricated while the rail is moving. Can be performed. Therefore, it is possible to prevent excessive oil supply by supplying oil only to the necessary portions when necessary, and to obtain the effects of reducing contamination by oil, reducing oil consumption, and reducing maintenance work time for cleaning oil supply.

  Moreover, since the detection is based on rolling of the detection roller 2, wear of the detection roller 2 is suppressed even when the friction coefficient increases, and there is an effect that the maintenance cycle of the apparatus itself can be lengthened.

  Furthermore, the copying function of the detection roller 2 can follow the horizontal movement of the car or the counterweight to contact the guide rail 1, thereby suppressing variation in the lubrication state detection level and stabilizing the contact state of the oil supply member 5. The effect which can be aimed at is also acquired.

Embodiment 2. FIG.
Next, an elevator guide rail fueling device according to Embodiment 2 will be described. FIG. 5 is a configuration diagram of an elevator guide rail fueling device according to the second embodiment. As shown in FIG. 5, in the guide rail oil supply device 200 according to the second embodiment, the detection roller 2, the oil supply member 5, and the movable oil supply unit 8 are attached to the frame 9 independently from the left and right with respect to the guide rail 1. At the same time, the right movable oil supply portion 8 and the left movable oil supply portion 8 can be independently controlled with respect to the guide rail 1 by the setting of the control portion 4. Specifically, when one side of the left and right detection rollers 2 detects a shortage of lubricating oil, a setting is made between a system in which only the motor 3 on the detected side is driven to supply oil and a system in which both motors 3 are driven to supply oil The control unit 4 performs the switching. In addition, about another structure, it is the same as that of Embodiment 1, and duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The elevator guide rail refueling device 200 according to the second embodiment is configured as described above. For example, one side of the guide rail 1 is caused by an installation environment such as how to hit the sun or how to hit the wind, and other factors. Appropriate refueling is possible even in situations where only oil is insufficient. In addition, when independent control is not required, it is possible to set so that both sides of the detection roller 2 are refueled simultaneously when rolling.

Embodiment 3 FIG.
Next, an elevator guide rail fueling device according to Embodiment 3 will be described. FIG. 6 is a configuration diagram illustrating a main part of an elevator guide rail fueling device according to a third embodiment. As shown in FIG. 6, the guide rail oil supply device 300 according to Embodiment 3 is fixed by a cleaning member mounting bracket 61 so that the cleaning member 60 is always in contact with the surface of the detection roller 2. For the cleaning member 60, for example, a material such as felt is used. In addition, about another structure, it is the same as that of Embodiment 1 or Embodiment 2, and duplication description is abbreviate | omitted by attaching | subjecting the same code | symbol.

  The elevator guide rail oil supply device 300 according to Embodiment 3 is configured as described above, and can clean dirt on the roller surface and attached oil when the detection roller 2 rolls. Moreover, since the detection function of the detection roller 2 can be maintained for a long time, there is an effect that the maintenance time of the apparatus itself can be reduced.

  As described above, the first to third embodiments of the guide rail oil supply device for an elevator have been described. However, since oil gradually falls down along the guide rail 1, the guide rail 1 near the top floor is particularly short of oil. Cheap. Accordingly, in each of the embodiments, by operating the oil supply device in conjunction with the operation of the elevator, it is possible to supply oil in a concentrated manner especially in a portion where oil shortage easily occurs, and advanced oil supply control can be performed. Moreover, there exists an advantage which can confirm the lubrication result with the output of the detection roller 2. FIG.

DESCRIPTION OF SYMBOLS 1 Guide rail 2 Detection roller 3 Motor 4 Control part 5 Oil supply member 6 Oil supply head 7 Oil tank 8 Movable oil supply part 9 Frame 20 Rotation detector 40 Guide shoe 60 Cleaning member 61 Cleaning member attachment metal fittings 100, 200, 300 Guide rail oil supply device

Claims (6)

An elevator guide rail lubrication device that applies lubricant to the surface of a guide rail that guides the elevator car or the lifting and lowering of the counterweight,
A detection roller that rolls in contact with the surface of the guide rail;
A movable oil supply unit capable of switching between contact and non-contact with the guide rail,
An elevator guide rail oil supply device that detects whether or not oil supply to the guide rail is necessary by rolling of the detection roller and performs oil supply based on the detection result during the elevator lifting operation.   2. The guide rail oil supply device for an elevator according to claim 1, wherein the detection roller and the movable oil supply unit are provided independently on the left and right sides of the guide rail and are attached to a frame made of an elastic member. .   The elevator guide rail oil supply device according to claim 2, wherein the left and right movable oil supply portions are independently controlled.   The fuel tank is installed above a guide shoe attached to the elevator car or a counterweight, and is refueled only when the elevator car or the counterweight travels in an upward direction. The elevator guide rail oil supply device according to any one of claims 3 to 4.   The elevator guide rail oil supply device according to any one of claims 1 to 4, wherein a cleaning member is attached so as to always contact the surface of the detection roller.   The guide rail oil supply device for an elevator according to any one of claims 1 to 5, wherein the guide rail oil supply device is operated in conjunction with control of the entire elevator.

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