JPS6029483Y2 - Two-stage gate hoisting device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a hoisting device for gates provided in two stages, upper and lower.

Conventionally, hoisting devices for commonly known two-stage gates, such as gates in which a child gate is placed so that it can be tipped over a parent gate, biplane roller gates, and roller gates with a closing plate, have the following features: Those with an upper machine installed and operated separately, those with a hoist for operating the upper door installed above the lower door,
There are some that allow each door to be raised and lowered continuously via differential gears.

However, with the device in A above, the upper and lower doors can be operated separately, so the upper door can be tilted to any desired opening degree while maintaining the lower door at any desired opening degree. cannot be known immediately.

In the device described above, the hoist is located above the lower hot water, so it is not suitable for locations where the water level on the downstream side tends to rise to the level of the hoist.

Furthermore, the above-mentioned device has the problem that it is impossible to separately move the upper door at an arbitrary opening degree, and the structure is also relatively complicated.

Several proposals have been made to solve these problems, but they have both advantages and disadvantages, and so far none has been satisfactory.

This idea was made in view of the above-mentioned circumstances, and it enables the simultaneous operation of the upper and lower doors or the independent operation of the upper door, as well as smooth and reliable synchronization of hoisting and lowering. The purpose is to obtain upper equipment.

This invention will be explained in detail below based on drawings showing the structure of an embodiment.

The two-stage gate hoisting device according to this invention connects in series a first drum 3 for hoisting an upper door 1 and a second drum 4 for hoisting a lower door 2, and wire ropes 5 and 6 are connected to both drums 3 and 4, respectively. With one end fixed, the wire ropes 5 and 6 are suspended between idle pulleys 7 and 8 provided at both ends of the upper and lower doors 1 and 2 and fixed pulleys 9 and 10 provided above the beer P, etc. The other end 6A of the wire rope 6 for the lower door 2 is fixed to the top of the beer P, etc., and the other end of the wire rope 5 for the upper door 1 is wrapped around the direction changing pulley 11 and the movable pulley 12, and then fixed to the top of the beer P. etc., and is configured in a fixed manner.

The lower edge of the upper door 1 is mounted on the lower layer 2 which can be raised and lowered so as to be able to fall over, forming a two-stage gate, with both doors 1,
Both left and right ends of 2 are suspended by hoisting devices.

The first drum 3 has a diameter half the diameter of the second drum 4, and both drums 3 and 4 are integrally connected in series to form a via.
The second drum 4 is mounted on a pedestal 13 installed above via a bearing 14, and a gear 15 is attached to the end of the second drum 4.

This gear 15 is meshed with a drive gear 18 via intermediate gears 16 and 17, and a motor 20 with a shaft 19 of the drive gear 18 mounted on a frame 13, a manual device 21, a brake device 22, a bevel gear box 23, Cyclo reducer 24
It is designed to be driven through.

The fixed pulley 10 is pivoted on a pedestal 13, and the other end 6A of the wire rope 6 wound around the fixed pulley 10 is connected to the via P via a fixing fitting 25 attached near the fixed pulley 10 on the pedestal 13. is fixed.

Further, the fixed pulley 9 and the direction changing pulley 11 are connected to the frame 13.
The other end 5A of the wire rope 5 wound around the pulleys 9, 11 and 12 is attached to the pulley stand 26 via a fixing fitting 27. There is.

The movable pulley 12 is guided by a guide rail 29 horizontally installed on the pedestal 13 via a guide roller 28 pivotally attached to the pulley frame 12A, so that the movable pulley 12 can freely reciprocate in the horizontal direction. Guide rail 29 on top
It is configured to be driven by a drive device 30 such as a power cylinder disposed in parallel with the motor.

Next, the operation of the gate hoisting device according to this invention will be explained.

FIG. 1 shows a case where the upper door 1 is in an upright state. When raising or lowering the upper and lower layers 1 and 2 at the same time in this state, first release the brake device 22 and press the power cylinder. With motor 30 stopped, motor 2
0, both drums 3 and 4 are rotated simultaneously, and both doors 1 and 2 are moved up and down while maintaining their relative relationship.

Note that the diameter of the second drum 4 for the lower layer 2 is twice the diameter of the first drum 3 for the upper door 1, but the idler pulley 8 is twice as large as the idler pulley 7 on the upper door 1 side. Since they are provided on the lower layer 2 side, the vertical speeds of both doors 1 and 2 are equal.

Therefore, when lifting or lowering only the upper door 1, that is, when raising and lowering it, first activate the brake device 22 to prevent both drums 3 and 4 from rotating, then activate the power cylinder 30, and then operate the movable pulley. 12 is advanced toward the direction changing pulley 11, the wire rope 5 is loosened and the upper door 1 is allowed to fall under its own weight.

Then, by retreating the movable pulley 12, the wire rope 5 is pulled up, and the upper door 1 is raised.

In this way, the upper door 1 is independently raised and lowered relative to the lower tier 2.

The two-stage gate hoisting device based on this invention has both the upper and lower drums directly connected and integrated, so they can be operated simultaneously by a single drive device to maintain the relative relationship between both doors. Furthermore, since the wire rope 5 wound around the first drum 3 for the upper door 1 is pulled up or down by the movement of the movable pulley 12, the upper door 1 can be raised or lowered by itself. It can be raised up and down, and because it has a simple structure, it is economical and can be operated reliably and easily.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention; FIG. 1 is a plan view including a functional diagram, and FIG. 2 is a side view of a movable pulley and its driving device. 1...Upper door, 2...Lower tier, 3...
...First drum, 4...Second drum, 5,
6...Wire rope, 5A, 6A...
Wire rope end, 7. Death...Idle pulley, 9,10
...Fixed pulley, 11...Direction pulley, 12...Movable pulley, P...Zeyar.

Claims (1)

[Scope of utility model registration request] A first drum 3 for hoisting the upper door 1 and a second drum 4 for hoisting the lower door 2 are connected in series, and one end of wire ropes 5 and 6 is fixed to both drums 3 and 4, respectively. Idle pulleys 7 provided with 6 at both ends of the upper and lower doors 1 and 2
, 8 and fixed pulleys 9 and 10 provided above the beer P, the other end 6A of the wire rope 6 for the lower door 2 is fixed to the beer P, etc. The other end 5A is wound around a movable pulley 12 and fixed onto a via P, etc., and the movable pulley 12 is horizontally installed on a pedestal 13 via a guide roller 28 pivotally connected to the pulley frame 12A. The guide rail 29 is guided by the guide rail 29 on the pedestal 13 so that it can move back and forth in the horizontal direction.
A two-stage gate hoisting device characterized in that it is configured to be driven by a drive device 30 such as a power cylinder arranged in parallel with the.