CN110550533A

CN110550533A - Counterweight device of elevator

Info

Publication number: CN110550533A
Application number: CN201910693218.2A
Authority: CN
Inventors: 罗建华; 饶良涛; 周秋冬; 闵文辉; 吴江; 刘华; 周轩; 黄斌
Original assignee: Konda Elevator Co Ltd
Current assignee: Konda Elevator Co Ltd
Priority date: 2019-07-30
Filing date: 2019-07-30
Publication date: 2019-12-10

Abstract

The invention relates to a counterweight device of an elevator, which comprises a guide rail, wherein the guide rail is externally connected with a guide shoe, one side above the guide rail is provided with a fixed support, the middle part of the fixed support is connected with a rotating shaft, the outer part of the rotating shaft is connected with a traction pulley, the outer side of the traction pulley is connected with a traction steel wire rope, the lower part of the fixed support is connected with a counterweight frame, a plurality of counterweight blocks are arranged inside the counterweight frame, the counterweight blocks are fixedly connected onto the counterweight frame through a fixed plate, the traction fixture blocks are connected with an auxiliary motor through the traction steel wire rope, one side of the auxiliary motor is provided with a microprocessor, and one side of the microprocessor is provided with a buffer. The elevator car can be stopped and fixed through the counterweight device, and the safety of passengers is protected.

Description

Counterweight device of elevator

Technical Field

The invention relates to a counterweight device of an elevator, belonging to the technical field of counterweight devices of elevators.

Background

The elevator mainly includes hydraulic elevator and tows the formula elevator, hydraulic elevator mainly has two kinds of forms, direct drive formula and indirect drive formula, direct drive formula hydraulic elevator is connected hydro-cylinder and car bottom, utilize the flexible drive car up-and-down motion of hydraulic cylinder, indirect drive formula hydraulic elevator is with hydraulic cylinder connection on a movable pulley, the rope of connection on the car is up to first round the fixed pulley of fixing on the well top, down round the movable pulley on the hydraulic cylinder again, fix on the well top at last. The traction type elevator is driven by electric power and comprises a traction machine, a control cabinet and a lift car, wherein the traction machine and the control cabinet are installed at the top end of a hoistway, and the traction machine drives the lift car to ascend and descend.

The existing traction type elevator adopts a fixed counterweight, the mass of the counterweight is about the average value of the empty load and the full load of a car, and the mass of the counterweight is fixed and unchanged after each elevator is installed and debugged, as is well known, the actual load of the elevator randomly changes from zero to the rated load in the running process of the elevator, so the traditional counterweight mode saves most labor and energy only under 50 percent of load, and does not save most labor and energy under other conditions. When car end and when to heavy end quality inequality, the upper and lower of car will consume a lot of energy to reduce elevator motor's life, and when the elevator falls in accident, can't stop and fix the car sometimes, threaten passenger life safety, need to increase safety measure at the counter weight device outside the car.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the existing defects, and provide the counterweight device of the elevator, which can adjust the tension of the counterweight block on the main motor, change the corresponding tension of the counterweight block while changing the weight of the elevator car, and effectively solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme:

The utility model provides a counterweight of elevator, includes the guide rail, guide rail external connection leads boots, guide rail top one side is equipped with the fixed bolster, the pivot is connected at the fixed bolster middle part, the pulley is hauled to the pivot external connection, it tows wire rope to tow the pulley outside connection, the counterweight housing is connected to the fixed bolster below, counterweight housing inside is equipped with a plurality of counterweight blocks, counterweight block is by fixed plate fixed connection on counterweight housing, the buffer head is connected to counterweight housing below both sides, buffer head one side is equipped with the traction fixture block, it assists the motor to pull the fixture block through pulling wire rope connection, it is equipped with microprocessor to assist motor one side, microprocessor one side is equipped with the buffer.

As a preferable technical scheme of the invention, one side of the auxiliary motor is provided with a reinforcing plate, and the bottom end of the reinforcing plate is fixed on a floor by a fixing bolt.

In a preferred embodiment of the present invention, the guide rail is inserted into the guide shoe, and the guide shoe is slidably coupled to the guide rail.

In a preferred embodiment of the present invention, the rotating shaft is inserted into a traction sheave, and the traction sheave is rotatably connected to the rotating shaft.

As a preferable technical scheme of the present invention, a connecting portion between each of two sides of the interior of the counterweight housing and the counterweight block is provided with a clamping groove, and the counterweight block is embedded in the clamping groove.

As a preferred technical scheme of the present invention, the limit receiver is connected to a gravity sensor and a weightlessness sensor disposed at the bottom of the elevator car through wireless signals, and the microprocessor is electrically connected to the auxiliary motor.

The invention has the beneficial effects that: when the elevator is used, a counterweight block is added in a counterweight frame, so that the total mass of a counterweight device is the same as the no-load mass of an elevator car, when the elevator car enters passengers, the weight of the car is increased, the weight of the car exceeds the weight of the counterweight device, a gravity sensor sends a signal to a microprocessor, the microprocessor sends an instruction to enable an auxiliary motor to increase the traction force on the counterweight block, so that the traction force between the car and the counterweight block is the same, when the elevator car is in no-load, the auxiliary motor does not increase the traction force of the counterweight device, so that the car and the counterweight device are in gravity balance, when the elevator accidentally falls, a weightlessness sensor sends an instruction to the microprocessor, an auxiliary motor gear is locked, a reinforcing plate is fixed on the auxiliary motor by a fixing bolt, so that the auxiliary motor cannot move due to the tension force, the elevator car stops falling, and the safety of the passengers, make elevator car and counterweight gravity realize balancedly, make elevator owner motor be in the most laborsaving operating condition always, reduce owner motor load, move more steadily, when falling in the accident, the effect of fixed elevator car can be played to supplementary motor, and is safer when the passenger takes the elevator.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.

Fig. 1 is a front view of the present invention.

Fig. 2 is a structural view of an auxiliary motor of the present invention.

Reference numbers in the figures: 1. a guide rail; 2. a guide shoe; 3. fixing a bracket; 4. a rotating shaft; 5. dragging the pulley; 6. dragging the steel wire rope; 7. a counterweight housing; 8. to the pouring weight; 9. a fixing plate; 10. a bumper head; 11. a traction clamping block; 12. a traction wire rope; 13. an auxiliary motor; 14. a microprocessor; 15. a buffer; 16. a reinforcing plate; 17. and (5) fixing the bolt.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

As shown in fig. 1-2, a counterweight of elevator, includes a guide rail 1, a guide shoe 2 is connected to the outside of the guide rail 1, a fixed support 3 is arranged on one side of the upper side of the guide rail 1, a rotating shaft 4 is connected to the middle of the fixed support 3, a traction pulley 5 is connected to the outside of the rotating shaft 4, a traction steel wire rope 6 is connected to the outside of the traction pulley 5, a counterweight housing 7 is connected to the lower side of the fixed support 3, a plurality of counterweight blocks 8 are arranged inside the counterweight housing 7, the counterweight blocks 8 are fixedly connected to the counterweight housing 7 through a fixed plate 9, a buffer head 10 is connected to both sides of the lower side of the counterweight housing 7, a traction clamping block 11 is arranged on one side of the buffer head 10, the traction clamping block 11 is connected to an auxiliary motor 13 through a traction steel wire rope 12, a signal receiving device 14 is arranged on one side of the auxiliary motor.

It is equipped with reinforcing plate 16 to assist motor 13 one side, the 16 bottom of reinforcing plate is fixed in on the floor by fixing bolt 17, guide rail 1 run through in lead 2 insides of boots, just lead 2 sliding connection on guide rail 1 of boots, pivot 4 runs through inside dragging pulley 5, just it connects in to drag 5 rotations of pulley 4, to the inside both sides of heavily putting up 7 with be equipped with the draw-in groove to the 8 junctions of pouring weight, to in 8 embedding draw-in grooves of pouring weight, make that the pouring weight is fixed in to heavily putting up insidely, limit number receiver 14 passes through wireless signal and connects in elevator car bottom gravity inductor and weightless inductor, and the signal of conveying gives microprocessor, microprocessor and assisting motor electric connection, microprocessor can be the singlechip.

The working principle of the embodiment is as follows: before the elevator is used, a counterweight 8 is added in a counterweight frame 7, so that the total mass of a counterweight device is the same as the empty-load mass of an elevator car, when the elevator car enters passengers, the weight of the car is increased, the weight of the car exceeds the weight of the counterweight device, a gravity sensor sends a signal to a microprocessor 14, the microprocessor 14 sends an instruction to enable an auxiliary motor 13 to increase the traction force on the counterweight 8, so that the traction force between the car and the counterweight is the same, when the elevator car is empty, the auxiliary motor 13 does not increase the traction force of the counterweight device, so that the gravity of the car and the counterweight device are balanced, when the elevator falls accidentally, a weightlessness sensor sends an instruction to the microprocessor 14, an auxiliary motor 13 is locked by a gear, a reinforcing plate 16 is fixed on the auxiliary motor 13 by a fixing bolt 17, so that the auxiliary motor 13 cannot move due to the tension, the elevator car stops.

The above embodiments are preferred embodiments of the present invention, and those skilled in the art can make variations and modifications to the above embodiments, therefore, the present invention is not limited to the above embodiments, and any obvious improvements, substitutions or modifications made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. Counterweight for an elevator, comprising a guide rail (1), characterized in that: the guide rail is characterized in that a guide shoe (2) is connected to the outside of the guide rail (1), a fixed support (3) is arranged on one side above the guide rail (1), a rotating shaft (4) is connected to the middle of the fixed support (3), a traction pulley (5) is connected to the outside of the rotating shaft (4), a traction steel wire rope (6) is connected to the outside of the traction pulley (5), a counterweight frame (7) is connected to the lower portion of the fixed support (3), a plurality of counterweight blocks (8) are arranged inside the counterweight frame (7), the counterweight blocks (8) are fixedly connected to the counterweight frame (7) through a fixed plate (9), a buffer collision head (10) is connected to two sides below the counterweight frame (7), a traction clamping block (11) is arranged on one side of the buffer collision head (10), the traction clamping block (11) is connected to an auxiliary motor (13) through a traction steel wire rope (12), and a microprocessor (, and a buffer (15) is arranged on one side of the microprocessor (14).

2. The counterweight of an elevator as set forth in claim 1, wherein: and a reinforcing plate (16) is arranged on one side of the auxiliary motor (13), and the bottom end of the reinforcing plate (16) is fixed on the floor by a fixing bolt (17).

3. The counterweight of an elevator as set forth in claim 1, wherein: the guide rail (1) penetrates through the interior of the guide shoe (2), and the guide shoe (2) is connected on the guide rail (1) in a sliding mode.

4. The counterweight of an elevator as set forth in claim 1, wherein: the rotating shaft (4) penetrates through the interior of the traction pulley (5), and the traction pulley (5) is rotatably connected with the rotating shaft (4).

5. The counterweight of an elevator as set forth in claim 1, wherein: the joint of the two sides of the interior of the counterweight frame (7) and the counterweight block (8) is provided with a clamping groove, and the counterweight block (8) is embedded into the clamping groove.

6. The counterweight of an elevator as set forth in claim 1, wherein: the number limiting receiver (14) is connected with a gravity sensor and a weightlessness sensor arranged at the bottom of the elevator car through wireless signals, and the microprocessor (14) is electrically connected with the auxiliary motor (13).