KR20010048244A - Bottom type governor for the hydraulic elevator - Google Patents

Abstract

PURPOSE: A bottom type governor for and oil hydraulic elevator is provided to easily inspect a governor by installing the governor at the bottom of a hoistway for safe work and to save cost. CONSTITUTION: As a governor rope(18) is connected with an elevator(110) and when the elevator descends, the governor rope moves downward to rotate a governor(10) and a tension pulley(20) respectively. When the governor reaches a predetermined speed, an electrical switch inside the governor is operated by centrifugal force and, by constricting the governor, an alarm stop device inside the elevator is operated to stop the elevator. A tension pulley rotates upwardly with the turning moment caused by weight while a tension pulley weight(22) tries to rotate downwardly. Correspondingly, the governor rope receives tensile force all the time. Likewise, the governor rotates according to the up and down motion of the elevator without sliding between the governor and the tension pulley installed at the bottom of a hoistway(100).

Description

Bottom type governor of hydraulic elevator {BOTTOM TYPE GOVERNOR FOR THE HYDRAULIC ELEVATOR}

The present invention relates to a governor that is an abnormal speed detection device of a hydraulic elevator, and more particularly, to a bottom governor of a hydraulic elevator that allows the governor to be installed below a hoistway.

An elevator is a machine that moves people or cargo vertically, and is divided into rope type and hydraulic type according to the driving method.

In general, the machine room of the rope elevator is located on the upper floor of the hoistway (vertical moving passage of the elevator), and the machine room of the hydraulic elevator is located on the lower floor of the hoistway.

The governor used in the conventional hydraulic elevator is installed on the upper part of the hoistway, and when the descending speed of the elevator becomes higher than the reference speed, it cuts off the driving power and operates the emergency stop device to stop the elevator.

1 illustrates a configuration of a governor of a conventional hydraulic elevator.

As shown, the governor support beam 50 is installed at the upper part of the hoistway 100, and the governor 52 is installed through the governor support beam 50, and the tension pulley 54 is provided at the lower part of the hoistway 100. The tension pulley (54) is provided with a tension pulley (58) for securing the tension of the governor rope (56).

And a check ladder 60 for checking the governor 52 on the wall surface of the hoistway 100 is installed from the bottom of the hoistway 100 to the top.

In the governor configured as described above, the governor rope 56 is connected to the elevator 110 so that the governor rope 56 also moves downward when the elevator 110 descends, and the governor 52 and the tension pulley 54 also move. Will rotate.

The governor 52 uses the speed difference between the elevator 110 and the governor rope 56 by operating the electric switch in the governor 52 and preventing the governor 52 from rotating by the principle of centrifugal force when the set speed is reached. By operating the emergency stop device in the elevator 110 to stop the elevator (110).

As described above, since the emergency stop device in the elevator 110 is operated by using the speed difference between the governor rope 56 and the elevator 110, the governor rope 56 should not be stretched and should always be under tension. Accordingly, the tension pulley 58 is installed at the lower end of the governor tension pulley 54 to maintain the tension of the governor rope 56 by keeping the tension pulley 54 always in the gravity direction.

Since the conventional governor 52 constructed and operated as described above is installed at the upper part of the hoistway 100, the machine room of the hydraulic elevator is positioned opposite to that provided at the lower end of the hoistway 100.

Therefore, in order to return the elevator after stopping the elevator by operating the governor 52, the governor 52 must be restored to its original position. For this purpose, the worker must climb to the upper part of the hoistway 100 to return the governor 52 to its original position. do.

In addition, in order to periodically check and repair the governor 52, it should be accessible to the upper part of the hoistway 100 in which the governor 52 is located. For this purpose, the governor check ladder 60 from the lower part of the hoistway 100 to the upper part is provided. It is installed so that the operator can access the governor 52.

Since the governor 52 is located in the upper part of the hoistway 100 as described above, the worker must go to the upper part of the hoistway 100 using the check ladder 60, and thus there is a possibility of an accident in which the worker falls.

And because the governor 52 is located above the hoistway 100, the inspection ladder 60 corresponding to the entire height of the hoistway 100 must be separately installed, which causes a cost increase.

Therefore, the present invention was made to solve the problems of the prior art as described above, it is possible to install the governor under the hoistway to facilitate the inspection of the governor to be a safe operation and to reduce the cost of the hydraulic elevator The purpose is to provide a bottom governor.

In order to achieve the above object, the present invention is installed so that the governor does not flow through the governor fixture installed on the lower wall of the hoistway, and the top of the hoistway is provided with a stator capable of seesaw operation through a hitch (HITCH) piece, It is characterized in that the tension pulley to which the governor rope is connected and the tension pulley for maintaining the tensile force on the tension pulley are respectively provided at both ends of the fixing stand.

1 is a configuration diagram of a governor of a conventional hydraulic elevator.

Figure 2 is a configuration diagram of the governor of the hydraulic elevator of the present invention.

3 is a detailed view of the main portion of FIG.

<Explanation of symbols for the main parts of the drawings>

10: governor 12: governor fixture

14: hitch piece 16: fixed stand

18: governor rope 20: tension pulley

22: pulley pulley 100: hoistway

110: elevator

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2 is a configuration diagram of the governor of the hydraulic elevator of the present invention, Figure 3 shows a detail of the main portion of FIG.

Reference numeral 10 is a governor, the governor 10 is installed so as not to flow through the governor fixture 12 installed on the lower wall of the hoistway 100.

Reference numeral 14 is a hitch piece which is installed in the hoistway, and the fixing stand 16 is installed through the hitch piece 14, and the fixing stand 16 is installed on the hitch piece 14 so as to be able to seesaw (rotate). Both ends of the fixing table 16 is provided with a tension pulley 20 connected to the governor rope 18 and a tension pulley weight 22 for maintaining a tensile force on the tension pulley 20.

According to the present invention configured as described above, the governor rope 18 is connected to the elevator 110 so that the governor rope 18 also moves downward when the elevator 110 descends, and the governor 10 and the tension pulley 20 are moved. Also, when the governor 10 reaches the set speed, the elevator 110 and the governor rope 18 are operated by operating the electric switch in the governor 10 by the principle of centrifugal force and also preventing the governor 10 from rotating. By using the speed difference between the operation of the emergency stop device in the elevator 110 to stop the elevator (110).

As described above, the tension pulley weight 22 operates when the governor 10 operates as shown in FIG. 3, and thus the tension pulley weight 22 tries to rotate downward as shown by the arrow. 20 tries to rotate upwards. Accordingly, the governor rope 18 is always under tension due to the force that the tension pulley 20 tries to rotate upward.

In this way, since the governor rope 18 is always under tension, the governor 10 according to the up and down movement of the elevator 110 without slipping between the governor 10 and the tension pulley 20 fixedly installed under the hoistway 100 is provided. ) Can be rotated.

As described above, the present invention maintains the tension of the governor rope to perform the original function of the governor despite the installation of the governor used in the hydraulic elevator under the hoistway, thereby making it easy to inspect and repair the governor and to prevent safety accidents. It works.

Claims (1)

It is installed so that the governor does not flow through the governor fixture installed on the lower wall of the hoistway, and the upper part of the hoistway is provided with a stator capable of seesaw operation through a hitch piece, and a tension pulley to which the governor rope is connected to both ends of the hoistway. A bottom type governor of a hydraulic elevator, characterized in that the tension pulley to maintain the tension in the pulley pulley respectively configured.