CN217229899U

CN217229899U - Elevator counterweight system

Info

Publication number: CN217229899U
Application number: CN202023320997.9U
Authority: CN
Inventors: 郑庆辉; 丁建新; 王振宇; 刘福彬
Original assignee: Suzhou Duomeishi Household Elevator Co ltd
Current assignee: Suzhou Duomeishi Household Elevator Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2022-08-19
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses an elevator counter weight system, it is including installing in the load control portion at the bottom of the sedan-chair of elevator, and it is still including the balancing unit that is used for balancing elevator car load volume, the balancing unit includes mobilizable counterweight housing. The scheme comprises a load monitoring part, a control terminal and a balancing part. When the elevator is used, the balance part is defaulted in the elevator car, when the load of the elevator car is detected to be greater than the rated load, the load monitoring part can control the balance part to be folded and exit the elevator car, so that the load of the elevator is smaller than the rated load, and when the elevator finishes operation and returns to the floor where the balance part is located, the balance system automatically returns to the elevator car and is opened.

Description

Elevator counterweight system

Technical Field

The utility model belongs to the elevator equipment field, in particular to elevator counter weight system.

Background

At present, in order to reduce the general balance coefficient of an elevator to be 40% -50%, the energy of 0% -60% of rated load needs to be output when the elevator operates normally, and the energy consumption is the largest when the elevator is unloaded and fully loaded. When an actual elevator is used, the elevator is basically not in full load condition unless in extreme conditions, especially for a large-load elevator, most of energy consumption of the elevator is to ensure that the elevator runs but not transports people and goods, generally, for an elevator with low use frequency, almost half of the elevator is in no-load condition, and the loaded weight of the elevator is less than 50% of the rated load under most other conditions, even for an elevator with high use frequency, the device weight of the elevator is less than 50% of the rated load under most conditions, so that the elevator efficiency is low, the power is high during running, and impact is generated on a power grid. The energy consumption of the elevator is far larger than the potential energy added by the personnel and the goods elevator.

Disclosure of Invention

The utility model aims at providing an elevator counter weight system for energy consumption and maximum power when reducing the elevator and using at ordinary times improve elevator efficiency, reduce the maximum load to the electric wire netting.

In order to solve the technical problem, the utility model adopts the following technical scheme: the utility model provides an elevator counter weight system, it is including installing the load control portion at the sedan-chair bottom of elevator, and it still includes the balancing unit that is used for balancing elevator car load volume, the balancing unit includes mobilizable counterweight housing.

Preferably, the counterweight frame comprises side frames arranged in parallel and a cross beam connected between the side frames, the height of the side frames can be adjusted, and the length of the cross beam can be adjusted.

Preferably, the side bearer includes the stand, connect in longeron between the stand, every the stand includes inboard cylinder and the cover is located outside cylinder on the inboard cylinder, be used for adjusting inboard cylinder with outside cylinder relative position's first pneumatic cylinder, first pneumatic cylinder is located in the outside cylinder.

Optimally, a counterweight cavity is formed in the inner side column body, and counterweight liquid for adjusting the counterweight is injected into the counterweight cavity.

Optimized, the crossbeam includes the outer tube, wears to locate respectively interior sleeve pipe in the outer tube both ends, locate in the outer tube be used for the drive interior sleeve pipe is to the inboard second pneumatic cylinder that or the outside removed of outer tube, the second pneumatic cylinder is the dual-action hydro-cylinder just two piston rods of second pneumatic cylinder are connected with two interior sleeve pipes respectively.

Preferably, a first wheel assembly and a second wheel assembly are arranged below the side frames, wherein the first wheel assembly and the second wheel assembly are respectively used for controlling the side frames to move towards or away from each other and controlling the side frames to move out of or into the elevator car.

Preferably, the system further comprises a control terminal connected with the load monitoring part and the weight rack in a wired or wireless mode.

The beneficial effects of the utility model reside in that: the scheme comprises a load monitoring part, a control terminal and a balancing part. When the elevator is used, the balance part is defaulted in the elevator car, when the load of the elevator car is detected to be greater than the rated load, the load monitoring part can control the balance part to be folded and exit the elevator car, so that the load of the elevator is smaller than the rated load, and when the elevator finishes operation and returns to the floor where the balance part is located, the balance system automatically returns to the elevator car and is opened. When the foreseeable load is larger than the rated load of the car and the weight of the balance system is reduced, the balance part can be controlled by the control terminal (through remote manual setting or linkage of a weighing device at an elevator entrance) to be folded and withdrawn from the car in advance, the service efficiency of the elevator is improved, the balance part can adopt a manual control mode, and the balance part can be manually operated to enter and exit the car or be unfolded.

Drawings

FIG. 1 is a schematic view of the system of the present invention in positional relationship to the car;

FIG. 2 is a front view of the system;

FIG. 3 is a top view of the system in an open state;

fig. 4 is a top view of the system in a collapsed state.

Detailed Description

The invention will be described in detail below with reference to an exemplary embodiment shown in the drawings:

as shown in fig. 1 to 4, the elevator counterweight system includes a load monitoring part installed at the bottom of an elevator, a balancing part for balancing the load amount of an elevator car 0, and the balancing part includes a movable weight frame 1. The counterweight frame 1 comprises side frames 11 arranged in parallel and a cross beam 12 connected between the side frames 11, the height of each side frame 11 can be adjusted, and the length of the cross beam 12 can be adjusted. The side frame 11 includes columns 13 and longitudinal beams 14 connected between the columns 13, each column 13 includes an inner column 131, an outer column 132 sleeved on the inner column 131, and a first hydraulic cylinder 133 for adjusting the relative position between the inner column 131 and the outer column 132, and the first hydraulic cylinder 133 is disposed in the outer column 132. A counterweight cavity is formed in the inner side column body 131, and counterweight liquid for adjusting a counterweight is injected into the counterweight cavity. The beam 12 includes an outer tube 121, inner tubes 122 respectively inserted into two ends of the outer tube 121, and a second hydraulic cylinder 123 disposed in the outer tube 121 and used for driving the inner tubes 122 to move toward the inner side or the outer side of the outer tube 121, wherein the second hydraulic cylinder 123 is a dual-acting cylinder, and two piston rods of the second hydraulic cylinder 123 are respectively connected to the two inner tubes 122. The oil supply unit 4 of the first and second hydraulic cylinders 123 is mounted above the side member 14. A first wheel assembly 2 for controlling the side frames 11 to move towards or away from each other and a second wheel assembly 3 for controlling the side frames 11 to move out of or into the elevator car are arranged below the side frames 11 respectively. The system also comprises a control terminal which is connected with the load monitoring part and the counterweight frame 1 through wires or wireless connection, and the load monitoring part can be a weight sensor for a car bottom flat layer.

This scheme includes load control portion, control terminal, balancing unit. When the elevator is used, the default balancing part is in the elevator car, when the situation that the load of the elevator car is larger than the rated load is detected, the load monitoring part can control the second wheel assembly 3 to move upwards for packing, the first wheel assembly 2 drives the balancing part to fold, then the second wheel assembly 3 moves downwards, then the first wheel assembly 2 moves upwards, the second wheel assembly 3 drives the system to withdraw from the elevator car, the load of the elevator is smaller than the rated load, and when the elevator runs and returns to the floor where the balancing part is located, the balancing system automatically returns to the elevator car and is opened. When the foreseeable load is larger than the rated load of the elevator car and the weight of the balance system is reduced, the balance part can be controlled by the control terminal (through remote manual setting or linkage of a weighing device at an elevator entrance) in advance to be folded and withdrawn from the elevator car, the service efficiency of the elevator is improved, the balance part can adopt a manual control mode, and the balance part can enter and exit the elevator car or be folded through manual operation.

For example, 20 tons of goods elevator with gears and 0.5m/s has the power of a traction machine of 110kW and the rated current of 195A. When the balance coefficient is 45%, the no-load downlink average current is 160A, the maximum current is 240A, the full-load uplink average current is 195A, and the maximum current is 292.5A. According to the statistics at present, more than 95% of the situations of the elevator are used at 50% of rated load and below, the average current and the maximum current when the elevator is used can be reduced by 1/3, the load of a power grid is greatly reduced, meanwhile, the electricity is saved by at least half degree every 1 minute in average, and the electricity is saved by at least 5 ten thousand degrees calculated according to 10 ten thousand times of use in one year. The detailed data are shown in tables 1 and 2.

Figure DEST_PATH_375707DEST_PATH_IMAGE001

TABLE 1

Figure DEST_PATH_708599DEST_PATH_IMAGE002

TABLE 2

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an elevator counter weight system, it is including installing the load control portion at the sedan-chair bottom of elevator, its characterized in that: the system also comprises a control terminal which is connected with the load monitoring part and the counterweight frame in a wired or wireless way.

2. The elevator counterweight system of claim 1 wherein: the counterweight frame comprises side frames arranged in parallel and a cross beam connected between the side frames, the height of the side frames can be adjusted, and the length of the cross beam can be adjusted.

3. The elevator counterweight system of claim 2, wherein: the side frame comprises upright columns and longitudinal beams connected between the upright columns, each upright column comprises an inner side column body, an outer side column body sleeved on the inner side column body, and a first hydraulic cylinder used for adjusting the relative position of the inner side column body and the outer side column body, and the first hydraulic cylinder is arranged in the outer side column body.

4. The elevator counterweight system of claim 3 wherein: a counterweight cavity is formed in the inner side column body, and counterweight liquid used for adjusting a counterweight is injected into the counterweight cavity.

5. The elevator counterweight system of claim 2, wherein: the crossbeam includes the outer tube, wears to locate respectively interior sleeve pipe in the outer tube both ends, locate in the outer tube be used for the drive interior sleeve pipe is to the inboard second pneumatic cylinder that or the outside removed of outer tube, the second pneumatic cylinder is the dual-action hydro-cylinder just two piston rods of second pneumatic cylinder are connected with two interior sleeves respectively.

6. The elevator counterweight system of claim 2, wherein: and a first wheel assembly and a second wheel assembly are arranged below the side frames, and are respectively used for controlling the side frames to move towards or away from each other and controlling the side frames to move out of or into the elevator car.