* National patent safety component products
——speed governor with dual direction
A. Speed 1.0-2.5m/s, 360°at any point continuously catch, rope in two directions
B. Speed 0.4-1.0m/s, 360°at any point continuously catch , friction traction type
——Safety gear with dual braking: obtain state invention patent
Symmetric dual wadge progressive type / different braking force for two direction movement /related lifting system
——DFC door system:
(VF speed governing) door opening width: 700-1000mm, central opening type/side opening type
Door machine with belt geared type drive/ landing door, car door and jamb.
Obtain an invention patent and a practical patent
* Elevator remote monitoring system was successfully applied in the reconstruction of National People’s Congress Hall.
* VVVF elevator controller uses world famous manufacturers’ products and components, and the aftersale service is in time and considerate. The product is mature in its technique and was approved by National Elevator Inspection and Testing Center
* Family/Public residential elevator, passenger elevator (2nd generation improved type)
Load 320-1000kg, rated speed 0.5-2.0m/s
We can provide the whole set of drawings and disks for above products.
TKJ 1000/1.0-JXPC type PC controlled AC passenger elevator technique
Adopting independent innovation of PC controlled system
Possessing advanced developing, designing and testing methods
Targeting at 1m/s 1t passenger lifts used widely in this country, a speed-governing device is developed for three phase dual speed motors.
The function principle is: at the starting stage, a resistor is added in series to decrease voltage following Principle of Time; at the steady stage, the resistor is cut to let the motor run in its natural mechanical way; at the decelerating stage, adopting the Closed Loop Energy-consuming Brake Principle, the speed-governing device is applied to realize stepless speed regulating, direct stop and zero-speed. During the whole decelerating period the elevator runs accurately according to the given ideal curve, so that to improve the comfort, precision of leveling and travel efficiency.
Main specifications:
(speed regulating) Leveling precision: ±15mm
Max acceleration <1.2m/s2
Retardation time: around 2.5s
(Dual speed): Leveling precision: ±30mm
Max deceleration <1.5m/s2
Retardation time: 5-7s
This device has passed new product’s verification, experts commented that this AC speed governing device realizes direct stop with zero-speed, precision leveling, comfort riding, high efficiency, simple structure, convenient adjustment and maintenance. Logical signals adopt PLC. Compared to relay system, it has higher reliability, higher adaptability, more convenient adjustment and maintenance. This product is the first to adopt PLC for AC speed regulating system and has shown high practical value for upgrading AC dual speed elevator and reforms of the old technique.
TKJ 1000/1.6-JXPC new medium speed passenger elevator
It has the following features:
(1) Closed loop speed regulating;
(2) Its electric system is simpler than imported ones;
(3) The Adjustment is convenient. Adjust points decrease 1/5, without the need to use apparatus on the site;
(4) Shaft information is simpler than imported ones.
(5) Speed range (1.0m/s, 1.6m/s, 1.2m/s,1.75m/s);
(6) Low production cost, only 1/3 of imported elevators;
(7) Could be used for system either with or without tachometer;
(8) Could be used for any dual speed, dual winding motors; while the foreign products need special motors;
(9) This technique can be used for both new elevators production and old elevators upgrade, for which only an optic-electric encoder is added to the mechanical part.
Main parameters: Rated load: 1000kg (13 persons);
Rated speed: 1-6m/s, including 1.0m/s;
Control type: collective-selective;
Leveling precision: ±10mm
Starting and braking acceleration: < 1.5m/s2
Average acceleration/deceleration: >0.5m/s2
This elevator’s design is complying with five national codes including GB7588, the main technical specifications of which reach the requirements of design assignment book
Speed regulating system adopts vary-voltage energy-consuming braking principle, closed loop control, zero-speed brake, direct stop, steady start and brake.
PLC is used to control floor-selection signal. Well information is simplified and can comply with requirement of 1.6m/s elevators.
Steel plate car bottom frame is used instead of wood, which improved door machine system, reduced horizontal vibration and noises from the opening and close of doors.
This technique can be applied both in forms of technical transfer and product sales.
