CN-116946848-B - Gravity loading system for variable loading elevator

CN116946848BCN 116946848 BCN116946848 BCN 116946848BCN-116946848-B

Abstract

The invention discloses a gravity type loading system for a variable loading elevator, wherein each ball storage rack can enable a counterweight body to move from an unloading inlet to a loading outlet by means of self gravity, the counterweight ball rack can enable the counterweight body to move from the loading inlet to the unloading outlet by means of self gravity, a first ball feeding revolving door is arranged at the loading outlet and used for controlling the counterweight body to enter the counterweight ball rack from the ball storage rack, a second ball feeding revolving door is arranged at the unloading outlet and used for controlling the counterweight body to enter the ball storage rack from the counterweight ball rack, when the elevator stops at a floor, the loading inlet of the counterweight ball rack is in butt joint with a first ball feeding revolving door on the ball storage rack positioned above in two adjacent ball storage racks, the second ball feeding revolving door is in butt joint with the unloading inlet of the ball storage rack below in the two adjacent ball storage racks, and the counterweight and the total weight of the elevator car are approximately equal by utilizing the first ball feeding revolving door and the second ball feeding revolving door. The invention can quickly balance weight and save energy.

Inventors

LU WENXIU
YUE TIANYI
LI JINGHU
ZHAO JINGSHAN
ZENG ZHAODA

Assignees

清华大学
广东信稳能控技术研究有限公司

Dates

Publication Date: 20260512
Application Date: 20230731

Claims (9)

1. A gravity load system for a variable load elevator, comprising: The ball storage frames are distributed up and down in the ladder shaft and are respectively positioned between the upper and lower adjacent floors, each ball storage frame is provided with an unloading inlet and a loading outlet, and each ball storage frame can enable a counterweight body to move from the unloading inlet to the loading outlet by means of self gravity; The counterweight ball frame is provided with one counterweight ball frame, the counterweight ball frame is connected with the elevator rope, the counterweight ball frame is provided with a loading inlet and an unloading outlet, and the counterweight ball frame can enable a counterweight body to move from the loading inlet to the unloading outlet by means of self gravity; The first ball feeding turnplates are arranged at the loading outlets of the ball storage frames in a one-to-one correspondence manner and used for controlling the counterweight body to enter the counterweight frame from the ball storage frames; the second ball feeding revolving door is arranged at the unloading outlet of the counterweight ball frame and is used for controlling the counterweight body to enter the ball storage frame from the counterweight ball frame; When the elevator stops at a floor, the loading inlet of the counterweight ball frame is in butt joint with the first ball feeding revolving door on the upper ball storage frame in the two adjacent ball storage frames, and the second ball feeding revolving door is in butt joint with the unloading inlet of the lower ball storage frame in the two adjacent ball storage frames; The height positions of the ball storage racks at the lowest and the uppermost are adjustable, and the height positions of the counterweight ball racks are adjustable; When the counterweight ball frame descends to the lowest position and the lowest ball storage frame ascends to the highest position, the lowest ball storage frame gives redundant counterweight bodies to the counterweight ball frame; when the counterweight ball rack ascends to the highest position and the uppermost ball storage rack descends to the lowest position, the counterweight ball rack supplements the counterweight body to the uppermost ball storage rack.
2. The gravity load system for a variable load elevator of claim 1, wherein the first ball feed swing door and the second ball feed swing door are both horizontal ball feed swing doors, the horizontal ball feed swing doors include a swing door stepper motor and two symmetrical ball feed vanes, the swing door stepper motor controls the two ball feed vanes to rotate in a synchronous opposite direction to feed the counterweight.
3. The gravity type load balancing system for a variable load balancing elevator according to claim 2, wherein the horizontal ball feeding revolving door further comprises a revolving door bracket and a gear mechanism, the revolving door stepping motor drives the gear mechanism, the gear mechanism is installed on the revolving door bracket and is respectively connected with the two ball feeding fan blades, and the revolving door stepping motor controls the two ball feeding fan blades to synchronously rotate towards each other by driving the gear mechanism so as to convey the weight body.
4. The gravity loading system for a variable loading elevator according to claim 2 wherein the rotation angle of the ball feeding fan blade reaches a specific value, and a counterweight is released, thereby establishing a correspondence between the rotation angle and the number of counterweights.
5. The gravity loading system for a variable loading elevator according to claim 1 wherein the height positions of the uppermost and lowermost ball storage shelves are respectively adjusted by respective ball storage shelf elevators and the height position of the counterweight ball shelf is adjusted by a counterweight ball shelf elevator.
6. The gravity loading system for a variable loading elevator according to claim 5 wherein the capacity of the ball storage rack is designed to be 2-5 times the rated load of the elevator car.
7. The gravity loading system for a variable loading elevator of claim 1 wherein the maximum capacity of the counterweight housing is the rated load of the elevator car and the weight of the counterweight housing without counterweight is the same as the weight of the elevator car when empty.
8. The gravity loading system for a variable loading elevator according to any one of claims 1 to 7 wherein the shape of the ball storage rack and the counterweight ball rack is a curve that facilitates the rolling of the counterweight body.
9. The gravity load system for a variable load elevator of claim 8, wherein the ball storage rack and the counterweight ball rack are each of a serpentine or serpentine type.

Description

Gravity loading system for variable loading elevator Technical Field The invention relates to the technical field of elevators, in particular to a gravity type loading system for a variable loading elevator. Background The existing elevator connects the car and counterweight by a rope, and controls the elevator operation by pulling the rope. However, such traction type elevators have many disadvantages, for example, the elevator consumes a great amount of energy, and it is necessary to rely on a motor to drag a weight vertically up and down. This results in that much energy is converted into potential energy of the weight, and the elevator is always moving at a constant speed, so that this potential energy is eventually not reused, but is simply wasted. In order to solve the problem of high energy consumption of the elevator, the existing elevator scheme with variable load adopts the water injection or water pumping of a water tank to change the weight of the counterweight, thereby ensuring that the elevator car is approximately equal to the counterweight, reducing the energy used for lifting the elevator, but has the defects of short elevator stopping time and long water injection time and reduced elevator running stability in a wet environment. How to shorten the time for adjusting the counterweight is one of the difficulties in realizing the energy-saving aim of the variable load elevator. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the invention is to propose a gravity loading system for a variable loading elevator which enables a fast counterweight to be achieved and energy to be saved. According to an embodiment of the invention, a gravity load system for a variable load elevator comprises: The ball storage frames are distributed up and down in the ladder shaft and are respectively positioned between the upper and lower adjacent floors, each ball storage frame is provided with an unloading inlet and a loading outlet, and each ball storage frame can enable a counterweight body to move from the unloading inlet to the loading outlet by means of self gravity; The counterweight ball frame is provided with one counterweight ball frame, the counterweight ball frame is connected with the elevator rope, the counterweight ball frame is provided with a loading inlet and an unloading outlet, and the counterweight ball frame can enable a counterweight body to move from the loading inlet to the unloading outlet by means of self gravity; The first ball feeding turnplates are arranged at the loading outlets of the ball storage frames in a one-to-one correspondence manner and used for controlling the counterweight body to enter the counterweight frame from the ball storage frames; the second ball feeding revolving door is arranged at the unloading outlet of the counterweight ball frame and is used for controlling the counterweight body to enter the ball storage frame from the counterweight ball frame; When the elevator stops at a floor, the loading inlet of the counterweight ball frame is in butt joint with the first ball feeding revolving door on the upper ball storage frame in the two adjacent ball storage frames, the second ball feeding revolving door is in butt joint with the unloading inlet of the lower ball storage frame in the two adjacent ball storage frames, and the counterweight ball frame is loaded or unloaded by the first ball feeding revolving door and the second ball feeding revolving door according to the change of the load of the elevator car so as to realize the change of the weight of the counterweight, so that the total weight of the counterweight and the elevator car is approximately equal. According to the gravity type load balancing system for the variable load balancing elevator, when the elevator is stopped at each floor, according to the change of the load of the elevator car, the weight body is carried by utilizing the gravity of the weight body to apply work so as to rapidly load the weight body to the counterweight ball frame or rapidly unload the weight body from the counterweight ball frame, so that the purpose of recycling the lifted gravitational potential energy of the weight body is achieved, the number of loaded weight bodies can be controlled through the first ball feeding revolving door, the number of unloaded weight bodies can be controlled through the second ball feeding revolving door, and therefore the gravity type load balancing system for the variable load balancing elevator can adjust the counterweight of the elevator, and the total weight of the elevator car is kept approximately equal to the counterweight when the load of the elevator is changed, and the purpose of saving energy is achieved. In a word, the gravity loading system for the variable loading elevator can achieve the purposes of rapid counterweight and energy saving. In some embodiments, the first ball fee