CN201980833U - Counterweight system of 4/1 small machine room freight elevator - Google Patents

Abstract

The utility model discloses a counterweight system of a 4:1 small machine room freight elevator, which comprises a side guide wheel 1, a counterweight wheel 2, a traction wheel 3, a traction rope 4, a counterweight body 5, and a counterweight wheel 2 The number is 2, and the two are vertically arranged; the traction wheel 3 enters from the counterwheel 2 below through the traction rope 4, passes through the side guide wheel 1, and reaches the counterwheel 2 above out and connect to the fixed end of the cord. The beneficial effect of the utility model is that the width dimension of the counterweight can be reduced to the minimum, which is of great significance, especially when the car is required to pass through the door, the utility model is more suitable for pulling the elevator with the car passing through the door.

Description

4:1 Counterweight System of Freight Elevator with Small Machine Room

technical field

The utility model belongs to the field of elevators, in particular to a counterweight system of an elevator, in particular to a counterweight system of a 4:1 small machine room cargo elevator.

Background technique

Elevator counterweight is also called weight balance system. The main function of this system is to relatively balance the weight of the car. During the operation of the elevator, the weight difference between the car and the counterweight can be kept within the limit to ensure the normal traction transmission of the elevator. Due to its importance, the design arrangement of the counterweight has also become one of the important areas in the elevator system design.

For the 4:1 small machine room freight elevator, due to its own inherent characteristics, its counterweight device is obviously different from the traditional elevator. Be called as: elevator counterweight device, patent number is: the Chinese patent of 97212450.0, and its counterweight device mainly is made up of counterweight frame, counterweight block, guide shoe, buffer head. Also known as: a new type of elevator counterweight device, the patent number is: 200820224223.6 Chinese patent, the counterweight device is mainly composed of a frame, a box, and a filler.

The disadvantage of the above design is that it is not suitable for 4:1 small machine room freight elevator, and the design is complicated.

Contents of the invention

Aiming at the deficiencies of the current technology, the utility model proposes a new counterweight design scheme, that is, a 4:1 counterweight system for small machine room freight elevators.

4:1 The counterweight system of a small machine room freight elevator, which includes a side guide wheel 1, a counterweight wheel 2, a traction wheel 3, a traction rope 4, and a counterweight body 5. The side guide wheel 1, counterweight wheel 2 and the counterweight 5 form an elevator counterweight system, the traction sheave 3 is connected with the elevator counterweight system through the traction rope 4, and the number of counterweight wheels 2 is 2, and the two are in the form of Horizontally arranged; the traction sheave 3 enters from the counterweight wheel 2 on one side through the traction rope 4, passes through the side guide wheel 1, goes out to the counterweight wheel 2 on the other side and is connected to the fixed rope end.

In order to realize the purpose of the invention of the utility model and achieve a small machine room elevator, the traction sheave 3 of the utility model is driven by a permanent magnet synchronous gearless traction machine, which is usually used in a passenger elevator. It is not used in freight elevators, especially in large-tonnage freight elevators, because it is a common component in elevators, especially passenger elevators, so it will not be described in detail, and it is not shown in the accompanying drawings of this specification.

The beneficial effect of the utility model is that: because the two wheels on the counterweight are placed horizontally, the vertical force bearing is balanced, and the elevator runs smoothly.

Due to the above beneficial effects, the utility model is widely used in 4:1 traction elevators, especially in elevators with 4:1 traction and wide car door arrangement.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Identification instructions: 1—side guide wheel; 2—counterweight wheel; 3—traction wheel; 4—travel rope; 5—counterweight.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1, the counterweight system of a 4:1 small machine room freight elevator includes a side guide wheel 1, a counterweight wheel 2, a traction wheel 3, a traction rope 4, and a counterweight body 5. The side guide Wheel 1, counterweight wheel 2 and counterweight body 5 form the elevator counterweight system, and the traction sheave 3 is connected with the elevator counterweight system through the traction rope 4, and the number of counterweight wheels 2 is 2, both of which are arranged horizontally; the traction sheave 3 enters from the counterwheel 2 on one side through the traction rope 4, passes through the side guide wheel 1, and exits from the counterwheel 2 on the other side and is connected to the fixed rope head.

Because the two wheels on the counterweight are placed horizontally, they are balanced in terms of vertical force bearing, and the elevator runs smoothly.

The sign similar to "grounding" in Figure 1 is for fixing the rope head, which is a common setting for all elevators, and will not be described in detail.

The power device of the traction system is driven by a permanent magnet synchronous gearless traction machine, which is not the main point of the invention of the present utility model. It is not shown in Fig. 1 and will not be described in detail.

About the intentional effect of the design of the present utility model and the application occasion, basically with foregoing description, so no longer repeat them.

Claims (2)

1.4: The counterweight system of a small machine room freight elevator includes side guide wheels (1), counterweight wheels (2), traction sheaves (3), traction ropes (4), and counterweights (5), as described The side guide wheel (1), the counterweight wheel (2) and the counterweight body (5) form the elevator counterweight system, and the traction sheave (3) passes through the traction rope (4) and the elevator The counterweight system connection is characterized in that: the number of the counterweight wheels (2) is 2, and the two are arranged horizontally; the traction wheel (3) passes through the traction rope (4) Enter from the counterweight wheel (2) on one side, pass through the side guide wheel (1), go out from the counterweight wheel (2) on the other side and connect to the fixed rope head. 2. The counterweight system of a 4:1 small machine room freight elevator according to claim 1, wherein the traction sheave (3) is driven by a permanent magnet synchronous gearless traction machine.

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