CN201713171U - Traction type elevator self-escaping device - Google Patents

Abstract

The utility model provides a traction type elevator self-escape device, which comprises a rope wheel mechanism, a cam swing rod mechanism, a planetary gear train mechanism and a traction mechanism. The rope wheel mechanism is adjacent to the emergency escape window side of the elevator car. The first bevel gear is connected to the second bevel gear on the cam swing mechanism, and the driving wheel on the rope pulley mechanism is connected to the planet carrier on the planetary mechanism; the cam swing mechanism is placed in the elevator machine room and acts on the planetary gear mechanism and the planetary mechanism. On the brake clutch mechanism of the elevator; the planetary gear system is placed in the elevator machine room, and the planetary shaft on the planetary gear system is connected to the input end of the worm gear reducer on the traction mechanism; the traction mechanism is placed in the elevator machine room, and the traction The de-energized electromagnetic clutch on the mechanism is connected with the drive shaft of the electric drive structure of the elevator. When emergency failures such as power outages and fires occur in the elevator, the passengers of the elevator can escape and save themselves by manipulating the rope of the device.

Description

A traction type elevator self-escape device

technical field

The utility model relates to an elevator self-escape device, in particular to a traction type elevator self-escape device. the

Background technique

Elevator emergency evacuation device: the device and method is that people pull the control rope and use the backup power to drive the brake release mechanism and drive the elevator lifting device, so that the elevator rises or descends to the nearest floor and opens the elevator door to realize emergency escape. the

Commonly used elevator safety escape mechanism: it is composed of brake clutch driver, brake release force structure, manual driver and power transmission mechanism. The brake clutch driver and manual driver are adjacent to the emergency opening side of the elevator car, and the brake release mechanism acts on On the brake clutch mechanism of the elevator motor; the active part of the power transmission mechanism is connected to the driving part, and its passive part is connected to the drive shaft of the elevator electric drive structure. the

Commonly used elevator safety escape mechanism problems:

1. The operation of the device is troublesome. Passengers need to first operate the brake clutch driving part to release the brake, and then manipulate the manual driving part to realize the movement of the car. There are too many operating steps, and passengers in an emergency are prone to operating errors, which delays the escape time. the

2. The brake clutch driver is composed of a drive cylinder, a piston handle, and a fluid delivery pipeline, and the connection between the drive cylinder, the piston handle, and the pipeline may fail due to leakage due to various factors, and the safety is poor And installation trouble. the

3. After the brake is released, there is a danger of the car slipping, lack of preventive measures, and the safety is not high. the

Problem improvement:

1. Only need to pull a rope to control the brake clutch mechanism and the car drive mechanism at the same time, no need to separate the two parts of the mechanism. the

2. Every time the brake is released, crank once, and then close the brake, and so on cycle operation, so that the car moves intermittently; and use the self-locking property of the worm gear to prevent the car from slipping after the brake is released. the

3. A power-off electromagnetic clutch is introduced between the original elevator mechanism and the utility device. When the elevator is running normally, the electromagnetic clutch is disconnected, and the utility device is isolated; when the power is cut off, the electromagnetic clutch is closed, and the utility device can drive the elevator lead machine. the

Contents of the invention

The purpose of this utility model is to overcome the above-mentioned deficiencies existing in the prior art, and to provide a traction-type elevator self-escape device for emergency escape and self-rescue of elevator passengers when emergency failures such as power outages and fires occur in the elevator. The specific technical scheme is as follows. the

A traction-type elevator self-escape device, including a rope pulley mechanism, a cam swing lever mechanism, a planetary gear train mechanism and a traction mechanism. The ropes in the rope pulley mechanism are located outside the emergency escape window on the elevator car. The first bevel gear on the mechanism is connected to the second bevel gear on the cam swing mechanism, and the driving wheel on the rope pulley mechanism is connected to the planet carrier on the planetary mechanism; the cam swing mechanism is placed in the elevator machine room; the planetary gear train mechanism Placed in the elevator machine room, the planetary shaft on the planetary gear train mechanism is connected to the input end of the worm gear reducer on the traction mechanism; the traction mechanism is placed in the elevator machine room, and the power-off electromagnetic clutch on the traction mechanism is connected to the elevator electric motor Driveshaft connection for drive structure. the

In the above-mentioned traction type elevator self-escape device, the planetary gear train mechanism includes a planetary shaft, a planetary carrier, a first sun gear, a second sun gear, a first planetary gear, a second planetary gear, a first friction plate, a second Friction plates and sleeves; the planet carrier, the second sun gear, and the sleeves are all set on the planet shaft; the first friction plate is fixedly connected to the second sun gear, and the second friction plate is fixedly connected to the sleeve; the first planetary gear and the second planetary gear are empty sleeves on the short shaft. the

The above-mentioned traction-type elevator self-escape device, the sheave mechanism includes a sheave shaft, a driving sheave, a sheave, a first bevel gear, a rope and an idler; the idler is placed at the bottom of the elevator shaft, and the rope is placed in the elevator car On the side of the emergency escape window, the driving wheel, the rope wheel and the first bevel gear are coaxially connected on the rope wheel shaft. the

In the above-mentioned self-escape device for traction elevators, the cam swing mechanism includes a disc-shaped grooved cam, a cam swing rod and a second bevel gear; one end of the cam swing rod is connected to the brake operating rod through a connecting rod, and the outer side of the sleeve There is a protrusion, which is located in the groove at the other end of the cam swing rod; the middle part of the cam swing rod is positioned on the shell of the device through a hinge, and the cam swing rod is provided with a bump, and the bump is located in the disc groove in the groove on the cam. the

The above-mentioned traction type elevator self-escape device, the traction mechanism includes a worm gear reducer and a de-energized electromagnetic clutch, one end of the de-energized electromagnetic clutch is connected to the drive shaft of the electric drive structure of the elevator, and the other end is connected to the worm gear reducer output connection. the

Compared with the prior art, the utility model has the following advantages and effects:

1. Passengers only need to pull a rope on the side of the emergency escape window of the car to control the brake clutch mechanism and the car driving mechanism at the same time, so that the car moves intermittently. the

2. Every time the brake is released, crank once, and then close the brake, and so on, to make the car move intermittently; and use the self-locking property of the worm gear to prevent the car from slipping after the brake is released. the

3. The planetary gear train and the disc groove swing rod cam mechanism realize the intermittent clutch movement of the brake, and at the same time intermittently transmit the power to the car drive mechanism. the

4. A power-off electromagnetic clutch is introduced between the original elevator mechanism and the utility device. When the elevator is running normally, the electromagnetic clutch is disconnected, and the utility device is isolated; when the power is cut off, the electromagnetic clutch is closed, and the utility device can drive the elevator lead machine. the

Description of drawings

Fig. 1 is a schematic diagram of the installation structure of the utility model. the

FIG. 2 is a top view of part A in FIG. 1 . the

FIG. 3 is a schematic diagram of a partially enlarged structure of part B in FIG. 2 . the

Fig. 4 is a C-C sectional view of Fig. 2 . the

FIG. 5 is a view taken along the direction D of FIG. 2 . the

In the figure, 1-idler gear, 2-emergency escape window, 3-worm gear reducer, 4-power-off electromagnetic clutch, 5-connecting rod, 6-brake operating lever, 7-coupling, 8-brake, 9-Planet carrier, 10-First sun gear, 11-Second sun gear, 12-Short shaft, 13-First planet gear, 14-Second planet gear, 15-Planet shaft, 16-First friction plate, 17-the second friction plate, 18-sleeve, 19-rope, 20-driving wheel, 21-sheave, 22-sheave shaft, 23-the first bevel gear, 24-the second bevel gear, 25-disc concave Groove cam, 26-camshaft, 27-cam fork, 28-projection, 29-housing. the

Detailed ways

The specific implementation of the utility model will be further described below in conjunction with the accompanying drawings, but the specific implementation and protection scope of the utility model are not limited thereto. the

As shown in Fig. 1 and Fig. 4, the traction type elevator self-escape device of the present invention is made up of sheave mechanism, planetary gear train mechanism, cam rocker mechanism and traction mechanism. As shown in Figures 1 and 4, the sheave mechanism is made up of sheave shaft 22, driving wheel 20, sheave 21, first bevel gear 23, rope 19 and idler 1. Idler 1 is placed at the bottom of the elevator shaft, rope 19 is placed outside the emergency escape window 2 that is provided on the elevator car, and driving pulley 20, sheave 21 and first bevel gear 23 are coaxially connected on sheave shaft 22. As shown in Figure 3, the planetary gear train mechanism includes a planetary shaft 15, a planetary carrier 9, a first sun gear 10, a second sun gear 11, a first planetary gear 13, a second planetary gear 14, a first friction plate 16, a Two friction plates 17, sleeve 18. The planet carrier 9, the second sun gear 11, and the sleeve 18 are all vacantly sleeved on the planetary shaft 15; the first friction plate 16 is fixedly connected to the second sun gear 11, and the second friction plate 17 is fixedly connected to the sleeve 18; A planetary wheel 13 and a planetary wheel 14 are empty sleeves on the short shaft 12, and the sleeve 18 can move on the planetary shaft 15. As shown in FIG. 3 , the cam rocker mechanism is composed of a disc groove cam 25 , a cam rocker 27 and a second bevel gear 24 . One end of the cam fork 27 is connected with the brake operating lever 6 on the brake 8 through the connecting rod 5 , and a protrusion is provided on the sleeve 18 outside, and this protrusion is positioned in the groove that the other end of the cam fork 27 has. The middle part of the cam swing lever 27 is positioned on the housing 29 of the device through a hinge, and the cam swing lever 27 is provided with a projection 28 , and the projection 28 is located in the groove on the disc groove cam 25 . As shown in Figure 3, the traction mechanism is composed of a worm gear reducer 3 and a de-energized electromagnetic clutch 4. The coupling 7 is connected with the planetary shaft 15 . the

In specific applications, the length of the rope should be adjusted according to the size of the elevator used by the user. The rope should be installed next to the escape window on the side of the car for easy operation by the user. the

When failures such as power outage, fire, and communication interruption occur in the elevator, the power-off electromagnetic clutch is closed when power is off, and the utility device can drive the traction machine. The passenger manipulates the rope 19 to drive the rope pulley 21 to simultaneously drive the coaxial driving wheel 20, the first bevel gear 23 and the second bevel gear 24, which are transmitted to the planetary gear train mechanism through the planet carrier 9, and the first bevel gear 23 and the second bevel gear The gear 24 drives the cam 25 to move. The disc groove cam 25 is at the thrust movement angle, and the cam swing lever 27 starts to swing toward the maximum swing angle, one end pushes the sleeve 18 that can slide on the planetary shaft 15 to move to the second sun gear 11, and the other end drives the connecting rod 5, The link mechanism that brake operating rod 6 and cam fork 27 form. The second friction plate 17 and the first friction plate 16 are closed to start braking, so that the second sun gear 11 is stationary. The brake operating lever 6 swings to the left limit position, and the brake 8 is opened; when the disc groove cam 25 was in the far-off stroke angle, the cam fork 27 stayed at the maximum swing angle. The brake operating lever 6 stays at the left limit position, the brake 8 is in an open state, and the traction shaft can rotate. The second friction plate 17 and the first friction plate 16 maintain a pressed state, so that the second sun gear 11 remains stationary. At this time, the planetary carrier can transmit power to the first sun gear 10 through the first planetary gear 13 and the second planetary gear 14, and the first sun gear 10 is transmitted to the car drive mechanism through the planetary shaft 15 to drive the traction shaft, so that the car box movement. When the disc groove cam 25 is in the return angle movement, the cam swing lever 27 swings to the minimum swing angle. The brake operating lever 6 swings to the right limit position, closes the brake 8, brakes the traction shaft, and the planetary shaft 15 cannot rotate. The second friction plate 17 and the first friction plate 16 are loosened, so that the second sun gear 11 can idle. At this time, the planet carrier can transmit power to the second sun gear 11 through the first planetary gear 13 and the second planetary gear 14, and the car is stationary. the

The movement rules of the first friction plate 16, the second friction plate 17, the brake 8 and the first sun gear 10 along with the contour line of the disc groove cam 25 are shown in Table 1:

Table 1

Claims (5)

1. A self-escape device for a traction type elevator is characterized in that it comprises a rope pulley mechanism, a cam swing lever mechanism, a planetary gear train mechanism and a traction mechanism, and the rope in the rope pulley mechanism is positioned at the emergency escape provided on the elevator car. On the outside of the window, the first bevel gear on the rope pulley mechanism is connected to the second bevel gear on the cam pendulum mechanism, and the driving wheel on the rope pulley mechanism is connected to the planet carrier on the planetary mechanism; the cam pendulum mechanism is placed in the elevator machine room ;The planetary gear system mechanism is placed in the elevator machine room, and the planetary shaft on the planetary gear system mechanism is connected to the input end of the worm gear reducer on the traction mechanism; the traction mechanism is placed in the elevator machine room, and the power-off type on the traction mechanism The electromagnetic clutch is connected with the drive shaft of the electric drive structure of the elevator. 2. The traction-type elevator self-escape device according to claim 1, characterized in that: the planetary gear train mechanism includes a planetary shaft, a planetary carrier, a first sun gear, a second sun gear, a first planetary gear, a second The two planetary gears, the first friction plate, the second friction plate and the sleeve; the planet carrier, the second sun gear, and the sleeve are all sleeved on the planetary shaft; the first friction plate is fixedly connected to the second sun gear, and the second friction plate The sheet is fixedly connected with the sleeve; the first planetary wheel and the second planetary wheel are empty on the short shaft. 3. The traction type elevator self-escape device according to claim 1, characterized in that: the sheave mechanism includes a sheave shaft, a driving wheel, a sheave, a first bevel gear, a rope and an idler; the idler is placed At the bottom of the elevator shaft, the rope is placed on the side of the emergency escape window of the elevator car, and the driving wheel, the sheave and the first bevel gear are coaxially connected on the sheave shaft. 4. The traction-type elevator self-escape device according to claim 1, characterized in that: the cam rocker mechanism includes a disc groove cam, a cam rocker and a second bevel gear; one end of the cam rocker is connected The rod is connected with the brake operating rod, and there is a protrusion on the outer side of the sleeve, which is located in the groove at the other end of the cam swing rod; the middle part of the cam swing rod is positioned on the outer shell of the device through a hinge, and the cam swing rod There are lugs which sit in grooves on the disc groove cam. 5. The traction type elevator self-escape device according to any one of claims 1 to 4, characterized in that: the traction mechanism includes a worm gear reducer and a de-energized electromagnetic clutch, one end of the de-energized electromagnetic clutch is connected to The drive shaft of the elevator electric drive structure is connected, and the other end is connected to the output end of the worm gear reducer. the

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