Best Installation Process for Elevator Guide Rail and Rail Bracket

The elevator guide rail not only controls the movement of the elevator car and the counterweight, but also provides strong support for the elevator to be braked when the car has an unexpected overspeed. So elevator guide rail is an important part of elevator running under quality and safety. The quality of elevator running is good, or not, which depends on the quality of elevator installation, and also the quality of elevator guide rail installation depends on the quality of elevator installation. So we will analyze how to install the elevator rail bracket, elevator guide rail with best process for you.The elevator guide rail not only controls the movement of the elevator car and the counterweight, but also provides strong support for the elevator to be braked when the car has an unexpected overspeed. So elevator guide rail is an important part of elevator running under quality and safety. The quality of elevator running is good, or not, which depends on the quality of elevator installation, and also the quality of elevator guide rail installation depends on the quality of elevator installation. So we will analyze how to install the elevator rail bracket, elevator guide rail with best process for you.

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(1) Installation process of elevator guide rail bracket

  • 1) If the elevator shaft is brick wall, concrete casting guide rail bracket is generally adopted with a depth of no less than 130mm.
  • 2) If the hoistway is brick-concrete-structured or concrete ring beam, the guide rail bracket should be installed on the concrete ring beam.
  • 3) If the vertical deviation of the hoistway exceeds the standard, the hoistway should be changed or use the rail bracket spacer for adjustment.
  • 4) After the hoistway design is completed, the installation of guide rail bracket for each brand elevator will be different according to actual situation.
  • 5) The long guide rail bracket will be selected when the hoistway size is larger than standard drawing.
  • 6) The guide rail bracket is processed sequentially according to actual distance between guide rail bracket and hoistway wall. How to local the installation position of rail bracket? The installation position will be located according to center line and auxiliary line of rail bracket, and then do spot welding with level rail gauge.

(2) Installation process of elevator guide rail

  • 1) Elevator guide rail and counterweight guide rail that is set with counterweight safety should be fixed on the solid ground base. The pit guide rail base should be kept horizontal, the levelness does not exceed 1/1000, and the height is about 60mm, and which is concreted around leveling with concrete.
  • 2) To check the straightness of elevator guide rail and keep it within 1/6000, if the nonstandard guide rail should be adjusted or replaced. Checking the end of tenon whether all right, clear the tenon before installation.
  • 3) During elevator guide rail, use the winding machine to lift the guide rail, the last guide rail should be cut according to actual length before lifting.
  • 4) After installation of elevator guide rail finished, the guide rail should be adjusted from bottom to top, if where any deviation is, correct it immediately.

Everything you should know about elevator brake

The elevator brake generates two-way electromagnetic thrust when electrified, which makes the brake mechanism separate from the rotating part of the motor. When the power is off, the electromagnetic force disappears. Under the action of the applied brake spring pressure, the friction-type brake of the electric loss brake is formed. It is mainly with escalators traction drive motor on formation of escalator with electromagnetic brake three-phase asynchronous motor, widely used in parking can achieve smooth and rapid start and brake when electricity safety.

Brake is an important safety device of elevator. Its safety and reliability is one of the important factors to ensure the elevator running safety.

The working principle of elevator brake

When the elevator is at rest, no current passes through the coil of the traction motor and the electromagnetic elevator brake. At this time, because there is no attraction between the electromagnetic iron core, the brake pad tightens the brake wheel under the action of brake spring pressure to ensure the motor does not rotate; The moment when the traction motor is electrically rotating, the coil in the brake electromagnet is connected with current at the same time, and the electromagnetic core is magnetized and absorbed rapidly, driving the brake arm to force its brake spring, the brake tile is opened and completely separated from the brake wheel, so that the elevator could be running; When the elevator car stop the required floor, the traction motor loses power, and the coil in the brake electromagnet also lost power , and the magnetic force in the electromagnetic core disappears rapidly. Then the core is reset by the brake arm under the action of the brake spring, make the brake tile hold the brake wheel again and the elevator stops running.

 

Useful conditions

  1. No more than 1000 m altitude, air relative humidity is not more than 80%, environment temperature + 40 ℃ ~ 15 ℃.
  2. There is no gas or dust in the surrounding environment that can corrode metal and break insulation.
  3. Insulation class B, protection class IP55, voltage fluctuation no more than + or – 5%.
  4. The working mode is S1 continuous working system.
  5. Working voltage AC220V/DC110V

 

 Function of elevator brake

(1) It can make the elevator in operation stop the car automatically when the power is cut off.

(2) When the elevator stops running, the brake should be able to keep the car at rest and position unchanged under 125% rated load.