Elevator electric control braking device with multi-stage limiting function

Abstract

The elevator electric control braking device with the multi-stage limiting function comprises a guiding device, a supporting device is installed on the inner side of the guiding device in a sliding mode, positioning devices are symmetrically and fixedly installed on the two sides of the supporting device, and the guiding device comprises a limiting support and a guide rail. The limiting supports are fixedly installed at the side end of the guide rail at equal intervals, the positioning device comprises a special-shaped connecting rod, a gear, a driving motor, a rack and a positioning insertion rod, the gear is fixedly installed in the center of the side end of the driving motor, the rack is meshed with the top end and the bottom end of the gear, and the special-shaped connecting rod is fixedly installed at the end, away from the gear, of the rack. The positioning inserting rod is fixedly installed at the end, away from the rack, of the special-shaped connecting rod, and the supporting device comprises a containing groove, a guide sleeve frame, a roller, an elevator cable and a lift car. Through the arrangement of the guide device, the positioning device and the supporting device, the purpose of secondary reinforced braking of the elevator car is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of elevator accessories, in particular to an elevator electric control brake device with a multi-stage limiting function. Background Art

[0002] The elevator brake is an important safety device for elevators. Its safety and reliability are one of the important factors to ensure the safe operation of elevators. The bidirectional thrust elevator brake generates bidirectional electromagnetic thrust when power is on, so that the brake mechanism is separated from the rotating part of the motor. When the power is off, the electromagnetic force disappears, and under the action of the external brake spring pressure, a friction brake with power-off braking is formed. It is mainly matched with the drive motor on the escalator traction machine to form an electromagnetic brake three-phase asynchronous motor for escalators. It is widely used in occasions where smooth parking, fast starting and safe braking can be achieved during power outages.

[0003] Most existing vertical elevators rely on the cooperation of electromagnetics and springs for braking, which can only achieve single-stage protective braking and cannot achieve secondary enhanced braking and anti-falling functions. Therefore, a device is needed to improve the above problem. Utility Model Content

[0004] The purpose of the utility model is to provide an elevator electric control brake device with a multi-stage limit function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an elevator electric control brake device with a multi-stage limit function, comprising a guide device, a support device is slidably installed on the inner side of the guide device, and positioning devices are symmetrically fixedly installed on both sides of the support device. The guide device comprises a limiting bracket and a guide rail, and the limiting bracket is equidistantly fixed on the side end of the guide rail. The positioning device comprises a special-shaped connecting rod, a gear, a drive motor, a rack and a positioning rod. The gear is fixedly installed at the side end center of the drive motor, and the rack is meshed with the top and bottom ends of the gear. The special-shaped connecting rod is fixedly installed on the end of the rack away from the gear, and the positioning rod is fixedly installed on the end of the special-shaped connecting rod away from the rack.

[0006] Preferably, the supporting device includes a placement groove, a guide sleeve, a roller, an elevator cable and a car, the elevator cable is symmetrically fixedly installed on the top of the car, the roller is symmetrically rotatably installed on both sides of the car, the guide sleeve is symmetrically fixedly installed on both sides of the car, and the guide sleeve is located on the inner side of the roller, and the placement groove is opened in the center of both sides of the car.

[0007] Preferably, the driving motor is fixedly mounted on the top and bottom ends of the placement slot, the roller is slidably inserted in the guide rail, and the positioning rod is slidably inserted in the guide sleeve.

[0008] Preferably, a sliding hole adapted to the positioning rod is provided inside the guide sleeve.

[0009] Preferably, the limiting bracket is vertically aligned with the positioning rod.

[0010] Preferably, reinforcing brackets are fixedly mounted on the bottom and top ends of the guide sleeve.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] When the device is in use, when the driving motor is started, the gear can be driven to rotate, and when the gear rotates, the rack and the positioning rod can be driven to move simultaneously, so that the positioning rod can be overlapped on the top of the limiting bracket to improve the stability of the car after braking. At the same time, the positioning rod is limited to move in a straight line by the guide sleeve, so that the positioning rod can be prevented from falling off, and the driving motor can be connected to the inductive component inside the elevator, so that when the car is fully braked, the driving motor can be started to complete the secondary braking of the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the guide device of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the positioning device of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the support device of the utility model.

[0017] In the figure: 1-guiding device, 2-positioning device, 3-supporting device, 4-limiting bracket, 5-guide rail, 6-special-shaped connecting rod, 7-gear, 8-driving motor, 9-rack, 10-positioning rod, 11-placing groove, 12-guide sleeve, 13-roller, 14-elevator cable, 15-car. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4The utility model provides an embodiment: an elevator electric control brake device with a multi-stage limit function, including a guide device 1, a support device 3 is slidably installed on the inner side of the guide device 1, and a positioning device 2 is symmetrically fixedly installed on both sides of the support device 3. The guide device 1 includes a limiting bracket 4 and a guide rail 5, and the limiting bracket 4 is equidistantly fixedly installed on the side end of the guide rail 5. The positioning device 2 includes a special-shaped connecting rod 6, a gear 7, a driving motor 8, a rack 9 and a positioning plug rod 10. The gear 7 is fixedly installed at the side end center of the driving motor 8, the rack 9 is meshed at the top and bottom ends of the gear 7, the special-shaped connecting rod 6 is fixedly installed on the end of the rack 9 away from the gear 7, and the positioning plug rod 10 is fixedly installed on the end of the special-shaped connecting rod 6 away from the rack 9.

[0020] The supporting device 3 includes a placement groove 11, a guide sleeve 12, a roller 13, an elevator cable 14 and a car 15. The elevator cable 14 is symmetrically fixedly installed on the top of the car 15, the roller 13 is symmetrically rotatably installed on both sides of the car 15, the guide sleeve 12 is symmetrically fixedly installed on both sides of the car 15, and the guide sleeve 12 is located on the inner side of the roller 13. The placement groove 11 is opened at the center of both sides of the car 15. The positioning rod 10 can be guaranteed to move in a straight line through the restriction of the guide sleeve 12.

[0021] The driving motor 8 is fixedly mounted at the top and bottom of the placement groove 11, the roller 13 is slidably inserted in the guide rail 5, and the positioning rod 10 is slidably inserted in the guide sleeve 12 to prevent the positioning rod 10 from falling off.

[0022] A sliding hole matched with the positioning rod 10 is provided inside the guide sleeve 12 , allowing the positioning rod 10 to slide inside the guide sleeve 12 .

[0023] The limiting bracket 4 is vertically aligned with the positioning rod 10 , thereby improving the docking accuracy between the positioning rod 10 and the limiting bracket 4 .

[0024] The bottom and top ends of the guide sleeve 12 are fixedly mounted with reinforcement brackets to enhance the limiting stability of the positioning rod 10 .

[0025] Working principle: When in use, first connect the elevator cable 14 to the elevator motor at the top of the external building, so that when the elevator motor is started, it can drive the car 15 to move up and down, and the guide rail 5 can be installed on the wall inside the elevator shaft. When the car 15 moves up and down, it can drive the roller 13 to move up and down inside the guide rail 5, so that the car 15 can move up and down in a straight line. When the elevator motor brakes, the car 15 can stay at the designated floor. At this time, the driving motor 8 is connected to the power supply of the floor door between the floors, so that the driving motor 8 can be started while the floor door is opened, so that the driving motor 8 can drive the gear 7 to rotate clockwise, and the rack 9 is meshed with the top and bottom ends of the gear 7, so that when the gear 7 rotates, it can drive the rack 9 to move outward at the same time, and the positioning rod 10 is slidably inserted into the inside of the guide sleeve 12, so that the positioning rod 10 can be guaranteed to move in a straight line, and when the positioning rod 10 moves outward to the extreme position. When the elevator motor is in braking state, the positioning rod 10 can be overlapped on the top of the limiting bracket 4 to realize secondary braking, thereby preventing the car 15 from shaking after braking. At the same time, the positioning rod 10 slides inside the guide sleeve 12, and the top and bottom ends of the guide sleeve 12 are fixedly installed with strengthening brackets, so that the strength of the guide sleeve 12 when restricting the positioning rod 10 can be improved, and the strength of the car 15 during secondary braking can be improved. Afterwards, when the car 15 needs to move again, the floor door power supply of the corresponding floor can start the drive motor 8 again, driving the gear 7 to rotate counterclockwise, so that the rack 9 and the positioning rod 10 can move inwardly toward each other, until the positioning rod 10 is dislocated from the top of the limiting bracket 4, so that the car 15 can be moved again, completing the secondary braking work of the car 15.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An elevator electric control brake device with a multi-stage limit function, comprising a guide device (1), a support device (3) is slidably mounted on the inner side of the guide device (1), and positioning devices (2) are symmetrically fixedly mounted on both sides of the support device (3), characterized in that: The guiding device (1) comprises a limiting bracket (4) and a guide rail (5), wherein the limiting bracket (4) is fixedly mounted at equal distances on the side end of the guide rail (5), and the positioning device (2) comprises a special-shaped connecting rod (6), a gear (7), a driving motor (8), a rack (9) and a positioning plug rod (10), wherein the gear (7) is fixedly mounted at the side end center of the driving motor (8), the rack (9) is meshed with the top and bottom ends of the gear (7), the special-shaped connecting rod (6) is fixedly mounted on the end of the rack (9) away from the gear (7), and the positioning plug rod (10) is fixedly mounted on the end of the special-shaped connecting rod (6) away from the rack (9).

2. The elevator electric control brake device with multi-level limit function according to claim 1, characterized in that: The supporting device (3) comprises a placement groove (11), a guide sleeve (12), a roller (13), an elevator cable (14) and a car (15); the elevator cable (14) is symmetrically fixedly installed on the top of the car (15); the roller (13) is symmetrically rotationally installed on both sides of the car (15); the guide sleeve (12) is symmetrically fixedly installed on both sides of the car (15), and the guide sleeve (12) is located on the inner side of the roller (13); and the placement groove (11) is opened at the center of both sides of the car (15).

3. The elevator electric control brake device with multi-level limit function according to claim 2, characterized in that: The driving motor (8) is fixedly mounted at the top and bottom of the placement groove (11), the roller (13) is slidably inserted into the guide rail (5), and the positioning rod (10) is slidably inserted into the guide sleeve (12).

4. The elevator electric control brake device with multi-stage limit function according to claim 3, characterized in that: The guide sleeve (12) is provided with a sliding hole adapted to the positioning insertion rod (10) inside.

5. The elevator electric control brake device with multi-level limit function according to claim 4, characterized in that: The limiting bracket (4) is vertically aligned with the positioning rod (10).

6. The elevator electric control brake device with multi-level limit function according to claim 5, characterized in that: Reinforcement brackets are fixedly mounted on the bottom and top ends of the guide sleeve (12).

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