CN2902995Y

CN2902995Y - Driving mechanism of elevator

Info

Publication number: CN2902995Y
Application number: CN 200620103089
Authority: CN
Inventors: 吕雪烽; 夏帮军; 张文欣; 林天明
Original assignee: HANGZHOU XIZI TRUST TECH Co Ltd
Current assignee: Unite Elevator Co., Ltd.
Priority date: 2006-04-27
Filing date: 2006-04-27
Publication date: 2007-05-23
Anticipated expiration: 2016-04-27

Abstract

The utility model provides an elevator driving mechanism, which is a screw and nut type elevator driving mechanism, comprising a motor, a belt pulley transmission component, a bearing nut, a security nut, a screw and other structures. The utility model has the advantages that firstly no synchronization problem exists and the consumption is low because of the mere adoption of a motor driven nut rotation. Secondly, the driving mechanism adds and uses safety nut, thereby realizing the load bearing nut running long-term and the safe protecting of the failure situation of the thread. Thirdly, thread utilizes trapezoidal thread to realize the self-lock between the screw and the nut when designing, and no need of the security clamp or other security components. The main points of the structure are that the screw is fixed, the motor and the nut are connected with an elevator car, the motor makes the nut rotate by the transmission component, thereby realizing the lifting of the elevator car. At the same time the lower part of the bearing nut is connected with the security nut to ensure the elevator car self-lock on the condition of the failure of the bearing nut and to trigger electric switch simultaneously to turn off the power.

Description

Elevator drive mechanism

Technical field

The utility model provides a kind of elevator drive mechanism, is the screw-and-nut elevator driving device.

Technical background

An existing Chinese patent: notification number CN1008273B, " lift appliance ", and it discloses a kind of employing nut and has been fixed on the lift car, and the screw mandrel rotation makes nut and screw mandrel produce relative motion, realizes the lifting of lift car.This structure adopts up and down two motors to rotate simultaneously to order about screw mandrel rotates synchronously, synchronism is relatively poor, and with two motors, cost and energy consumption are corresponding also big, and this device only is connected with screw mandrel with a nut, and the bearing screwed cap long-term use exists the potential safety hazard of thread failure.

Technology contents

The elevator drive mechanism that the utility model provides has following effect: 1, only adopt a driven by motor nut rotation, energy consumption is low, does not have the problem of synchronism.2, set up nut safe in utilization, realize the long-time bearing operation of bearing screwed cap, the safety guard-safeguard during the thread failure situation.3, screw thread adopts Acme thread, realizes the self-locking of nut and screw rod during design, need not safety tongs etc. safety component.

Major technique content of the present utility model is: this device mainly comprises structures such as motor, pulley drive assembly, bearing screwed cap, safety nut and screw rod; Its structural feature is that screw rod is fixed, and motor and nut are connected on the car, and motor rotates bearing screwed cap by transmission component, thereby realizes the lifting of car; At bearing screwed cap bottom attachment security nut, guarantee under the situation that bearing screwed cap lost efficacy, to make the car self-locking simultaneously, trigger electric switch simultaneously, make system cut-off.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is a partial enlarged drawing of the present utility model.

The specific embodiment

Fig. 1, Fig. 2 represent a most preferred embodiment of the present utility model.Elevator drive mechanism shown in the figure comprises that installation component [3], bearing screwed cap [4], safety nut [5] and the transmission component of screw rod [1], car [2], motor [6] and nut constitutes; Installation component [3] is fixed on the car [2]; Bearing screwed cap [4] cooperatively interacts with safety nut [5] and screw rod [1]; Wherein: screw rod [1] is relative fixed; Motor [6] and bearing screwed cap [4] are connected on the car; Motor [6] rotates bearing screwed cap [4] by transmission component, thereby realizes the lifting of car; And, guarantee under the situation that bearing screwed cap lost efficacy, to make screw rod and nut to realize self-locking at the bottom of bearing screwed cap [4] attachment security nut [5], thus car is stopped, triggering safety switch [12] simultaneously, make system cut-off.

Wherein: installation component [3] comprising: motor [6], driving wheel [7], cone belt [8], antifriction-bearing box [9], flower wheel [10], antifriction-bearing box [11], safety switch [12], swab case [13], lubricated sponge [14], motor upper mounting plate [15], motor lower installation board [16], pipe link [17] are formed.Above-mentioned elevator drive mechanism is characterized in that: installation component wherein [3] also comprises driving wheel [7], cone belt [8], antifriction-bearing box [9], flower wheel [10], antifriction-bearing box [11], safety switch [12], swab case [13], lubricated sponge [14], motor upper mounting plate [15], motor lower installation board [16], pipe link [17] composition.By bolt motor upper mounting plate [15] and motor lower installation board [16] are interfixed, and be connected with car [2].

Above-mentioned elevator drive mechanism is characterized in that: bearing screwed cap [4] is connected with pipe link [17] with safety nut [5], rotates simultaneously when guaranteeing operation; Bearing screwed cap [4] is connected with socket head cap screw with flower wheel [10], and is connected and fixed with motor upper mounting plate [15] and motor lower installation board [16] by antifriction-bearing box [9], [11]; Motor [6] and motor lower installation board [16] bolt together, and a driving wheel [7] is installed on motor shaft, driving wheel [7] is connected driving with flower wheel [10] by two cone belt [8].Wherein: swab case [13] and lubricated sponge [14] play lubricating bearing nut [4], safety nut [5] and screw rod [1], to reduce wear, increase the service life.Wherein: when driver train normally moved, motor [6] drove driving wheel [7] rotation, passed through cone belt [8] drive flower wheel [10] and bearing screwed cap [4], safety nut [5] rotation then; And screw rod [1] maintains static, thereby realizes the relative motion of screw rod [1] and car [2], realizes that car [2] moves up and down.

Obtain optimal screw type elevator actuating device thus.

Claims

1, a kind of elevator drive mechanism is characterized in that: it mainly is made of installation component [3], bearing screwed cap [4], safety nut [5] and the transmission component of screw rod [1], car [2], motor [6] and nut; Installation component [3] is fixed on the car [2]; Bearing screwed cap [4] cooperatively interacts with safety nut [5] and screw rod [1];

Wherein: screw rod [1] is relative fixed; Motor [6] and bearing screwed cap [4] are connected on the car; Motor [6] rotates bearing screwed cap [4] by transmission component, thereby realizes the lifting of car; And, guarantee under the situation that bearing screwed cap lost efficacy, to make screw rod and nut to realize self-locking at the bottom of bearing screwed cap [4] attachment security nut [5], thus car is stopped, triggering safety switch [12] simultaneously, make system cut-off.

2, elevator drive mechanism according to claim 1 is characterized in that: installation component wherein [3] also comprises driving wheel [7], cone belt [8], antifriction-bearing box [9], flower wheel [10], antifriction-bearing box [11], safety switch [12], swab case [13], lubricated sponge [14], motor upper mounting plate [15], motor lower installation board [16], pipe link [17] composition.

3, according to claim 1,2 described elevator drive mechanisms, it is characterized in that: by bolt motor upper mounting plate [15] and motor lower installation board [16] are interfixed, and be connected with car [2].

4, according to claim 1,2 described elevator drive mechanisms, it is characterized in that: bearing screwed cap [4] is connected with pipe link [17] with safety nut [5], rotates simultaneously when guaranteeing operation; Bearing screwed cap [4] is connected with socket head cap screw with flower wheel [10], and is connected and fixed with motor upper mounting plate [15] and motor lower installation board [16] by antifriction-bearing box [9], [11]; Motor [6] and motor lower installation board [16] bolt together, and a driving wheel [7] is installed on motor shaft, driving wheel [7] is connected driving with flower wheel [10] by two cone belt [8].

5, according to claim 1,2 described elevator drive mechanisms, it is characterized in that: swab case [13] and lubricated sponge [14] play lubricating bearing nut [4], safety nut [5] and screw rod [1], to reduce wear, increase the service life.

6, according to claim 1,2 described elevator drive mechanisms, it is characterized in that: when driver train normally moved, motor [6] drove driving wheel [7] rotation, passed through cone belt [8] drive flower wheel [10] and bearing screwed cap [4], safety nut [5] rotation then; And screw rod [1] maintains static, thereby realizes the relative motion of screw rod [1] and car [2], realizes that car [2] moves up and down.