CN108502679B - Novel counterweight-free elevator - Google Patents

Novel counterweight-free elevator Download PDF

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Publication number
CN108502679B
CN108502679B CN201810159422.1A CN201810159422A CN108502679B CN 108502679 B CN108502679 B CN 108502679B CN 201810159422 A CN201810159422 A CN 201810159422A CN 108502679 B CN108502679 B CN 108502679B
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China
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energy
oil
elevator
car
pressure
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CN201810159422.1A
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CN108502679A (en
Inventor
王宝根
卢迪
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Haining Cuizhi Intelligent Robot Co ltd
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Haining Cuizhi Intelligent Robot Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/04Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04Driving gear ; Details thereof, e.g. seals
    • B66B11/0423Driving gear ; Details thereof, e.g. seals actuated pneumatically or hydraulically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66BELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/28Buffer-stops for cars, cages, or skips
    • B66B5/282Structure thereof
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B50/00Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies

Abstract

The invention relates to a novel counterweight-free elevator, and belongs to the technical field of elevators. The energy-saving elevator comprises a control system, an elevator car, a driving device, an energy storage device and an energy supplementing device, wherein the control system comprises a safety loop; the driving device comprises a plurality of hydraulic motors I which are uniformly distributed on two sides of the lift car, and the transmission shaft ends of the hydraulic motors I are matched with the elevator track; the hydraulic motor is connected to the oil circuit controller; the oil circuit controller is connected with the energy storage device, the energy supplementing device and the oil tank; the energy storage device stores mechanical energy generated when the lift car descends and provides energy for the first hydraulic motor when the lift car ascends; the energy supplementing device supplements energy for the hydraulic motor when the ascending energy of the cage is insufficient. The invention realizes the movement of the elevator without counterweight; the problem of shaking generated in the movement process is solved without a balance weight and a traction rope, and the movement safety of the elevator is improved; meanwhile, the energy generated during the movement of the car can be fully transferred and stored, and the energy is reused in the movement of the car, so that the energy utilization rate is high.

Description

Novel counterweight-free elevator
Technical Field
The invention relates to a novel counterweight-free elevator, and belongs to the technical field of elevators.
Background
Elevator systems are typically comprised of a car system and a counterweight system that move up and down within a hoistway. The cage is a structure formed by combining a cage frame and a box body into a whole, wherein the box body is supported by the cage frame. A typical elevator system includes an elevator car, a drive, a traction rope, and a counterweight, wherein the traction rope or other load bearing member moves along a sheave disposed at an appropriate location in the car frame; the counterweight is typically supported with the car system by a traction rope or load bearing member. The counterweight typically moves up and down within the hoistway along guide rails that guide the counterweight while the car moves. The weight of the counterweight consists of the weight of the car system itself and half the weight of the maximum load. The weight of the car system constitutes the force T1 on one side of the traction sheave and the independent counterweight weight constitutes the force T2 on the other side of the traction sheave, the magnitude of the motor output torque is determined by the difference between T1 and T2, the traction capacity of the traction sheave must satisfy the formula ef α ≧ T1/T2, the values of f and α are system-inherent characteristics, so the smaller the difference between T1 and T2, the smaller the motor output torque, the lower the traction capacity requirement for the elevator system.
The disadvantages of the real elevator system are:
on one hand, in the aspect of economy, as the conventional counterweight needs to be accommodated to move in the lifting room, the lifting room needs to be designed with extra space, and the waste of resources is caused; on the other hand, in order to achieve the maximum balance under different load working conditions, the weight of the counterweight is always kept constant regardless of the change of the load, and the counterweight is generally composed of the weight of a car system and half of the maximum load, so that the weight of the counterweight is heavy and the cost is high; thirdly, the guide rails for guiding the counterweight and the installation involved in assembling these components, labor and time related costs.
From the perspective of traction capacity, in order to reduce the requirement on traction capacity, the closer the ratio of T1/T2 is, the better the ratio is, and the general formula for calculating the stress on the heavy side is: t1 is (P + Q)/2, T2 is (P +0.5Q)/2, and in the case of no load of the car system, making the ratio T1: T2 small would require the weight of the car system to be as heavy as possible, since the weight of the counterweight is usually made up of the weight of the car system itself plus half the weight of the maximum load, which in turn requires an increase in the weight of the counterweight, which is a conflict between tractive effort and the optimal cost of the lightest car system. The ratio of T1 to T2 also varies greatly with different load conditions.
From the perspective of safety, when the elevator car and the counterweight move up and down in the hoistway, a little shaking phenomenon is inevitably generated, and under the condition that the longer the working floor of the elevator is, the longer the traction rope is, the shaking phenomenon is in a very small angle in time, and terrible results can be brought by the factor of length.
And fourthly, from the energy perspective, because the current elevator system can not achieve complete balance of two sides all the time, the energy consumption is minimum only when the load reaches 50%, and the energy consumption reaches the maximum no matter the load is 0% or 100%, and the elevator is frequently used and is not usually near the 50% load working condition, so the energy can not achieve the optimal configuration.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a novel counterweight-free elevator which is economical and safe and has high energy recovery and utilization rate.
The technical scheme adopted by the invention for solving the problems is as follows: a novel elevator without counterweight comprises a control system, an elevator car lifting in a hoistway and a driving device, wherein the control system comprises a safety loop, an energy storage device and an energy supplementing device; an elevator track is arranged in the hoistway, and the driving device comprises a plurality of first hydraulic motors; the first hydraulic motors are uniformly distributed on two sides of the lift car, and transmission shaft ends of the first hydraulic motors are matched with the elevator track; the first hydraulic motor is connected to the oil way controller through a high-pressure oil pipe; the oil way controller is respectively connected with the energy storage device and the energy supplement device through a first branch and a second branch of a high-pressure oil pipe II and is connected to the oil tank through a third high-pressure oil pipe; the energy storage device stores mechanical energy generated when the lift car descends through oil and provides energy for the first hydraulic motor when the lift car ascends; the energy supplementing device is connected with the oil tank and supplements energy for the hydraulic motor when the ascending energy of the lift car is insufficient.
The hydraulic motors I uniformly distributed on two sides of the elevator car are matched with elevator tracks in the shaft to drive the elevator car to move up and down in the shaft. Under the condition of no counterweight, when the lift car ascends, energy is required to be provided from the outside to drive a transmission shaft end of the hydraulic motor I to rotate to overcome gravity to do work, so that mechanical energy is converted into potential energy of the lift car, and low-pressure oil is stored in an oil tank; when the lift car descends, the work of the lift car is originally needed to avoid the excessive movement speed of the lift car under the action of gravity, and when the lift car descends, the transmission shaft end of the hydraulic motor I is still matched with the lift rail, but the rotation direction of the hydraulic motor I is opposite to the rotation direction of the lift car when the lift car ascends, so that when the lift car descends, the hydraulic motor I can reversely input oil into the energy storage device through the high-pressure oil pipe II, the potential energy reduced when the lift car descends is converted into other energy through the energy storage device and stored in the energy storage device, on one hand, the speed of the lift car when the lift car descends can be in a reasonable range without additionally using the energy, and on the other hand, the energy generated when the lift car descends is reasonably recovered and stored. The oil circuit controller comprehensively controls the oil amount delivered to each developed hydraulic pressure. The energy stored in the energy storage device can be reversely applied to the first hydraulic motor again through the second high-pressure oil pipe when the lift car needs to ascend, so that the energy is provided for the ascending of the lift car, and the energy utilization rate of the elevator is greatly improved. The inevitable loss caused by energy conversion is supplemented by an energy supplementing device, and the energy required by the lift car to ascend is ensured.
Further, the energy storage device is a piston energy storage pump and comprises a sealed hollow shell and a separation piston arranged in the shell; the shell comprises an outer shell and an inner shell, wherein part of the inner shell is arranged in the outer shell and is connected with the inner wall of the outer shell in a sealing way; a partition plate is arranged in the inner shell to partition the inner space of the inner shell into a first oil inlet part and a connecting part which are sealed mutually, the first oil inlet part is connected with a high-pressure oil pipe, and an oil passing valve is arranged in the connecting part and is communicated with the outer shell and the first oil inlet part; the separation piston separates the space in the outer shell into an air compression part and an oil inlet part II, and the oil inlet part II is connected with the oil passing valve.
Except the outer shell and the inner shell are communicated through the oil valve, the other parts are in a sealed and isolated state; the separating piston in the outer shell body enables the air compression part and the oil inlet part II in the outer shell body to be mutually sealed and isolated. Oil enters the oil inlet part II from the oil inlet part I through the oil passing valve, and pushes the separation piston to compress air in the air compression part, so that energy storage is completed; when energy is output, the oil inlet valve is opened, high-pressure air in the air compression part pushes the separation piston to push oil out reversely, and the oil acts on the first hydraulic motor along the high-pressure oil pipe. The energy storage device is matched with the hydraulic motor to efficiently recover and utilize the energy generated in the ascending and descending processes of the lift car, so that the waste of the energy is greatly reduced.
Further, the energy supplementing device comprises a pressure sensor and a second hydraulic motor; the oil inlet end of the second hydraulic motor is connected with the oil tank, the oil outlet end of the second hydraulic motor is connected with the second branch of the high-pressure oil pipe, and the transmission shaft end of the second hydraulic motor is connected with the motor to transfer mechanical energy for supplement; the pressure sensor is arranged in the high-pressure oil pipe II; and a one-way valve is also arranged in the second branch.
The pressure sensor can detect the pressure of oil in the high-pressure oil pipe in real time, and when the pressure of the oil in the high-pressure oil pipe is detected to be lower than the pressure required by the lift car to rise, the second hydraulic motor automatically works to convey supplementary pressure through the branch two-way high-pressure oil pipe, so that the lift car can be guaranteed to obtain enough energy all the time. The setting of check valve for the fluid in the branch second can only follow hydraulic motor second and flow to high pressure fuel pipe's direction, thereby avoided the car when descending, fluid flows back in hydraulic motor second, causes unnecessary energy loss and mechanical damage.
Further, car bottom still is equipped with automatic balance integrated control ware, can be through the interior personnel distribution condition of gravity automated inspection car to correspondingly make the adjustment to car bottom, avoid car bottom slope situation to appear, avoid the car at the in-process of operation the card pause phenomenon appear.
Further, the safety loop comprises an automatic speed detection mechanism connected with the control system; the automatic speed detection mechanism comprises a first laser speed measurement device and a second laser speed measurement device which are arranged at the top of the well; light emitted by the first laser speed measuring device is directly emitted to the bottom of the well, and light emitted by the second laser speed measuring device is emitted to the top of the lift car.
The light emitted by the first laser speed measuring device is directly emitted to the bottom of the well, and the light is received again by the first laser speed measuring device after being reflected back; meanwhile, light emitted by the second laser speed measuring device is emitted to the top of the lift car, the light is reflected back and then is received again by the second laser speed measuring device, and the movement speed of the lift car can be measured in real time according to the time difference between the first laser speed measuring device and the second laser speed measuring device when the reflected light is received. When the speed measured and calculated by the automatic speed detection mechanism exceeds a safety range, the speed is immediately fed back to the control system, and therefore the control system can regulate and control the speed.
Further, the safety circuit also comprises a damping and buffering mechanism, and the damping and buffering mechanism comprises a spring damping device and a high-pressure air bag device; the lift car comprises a frame and a box body, the spring damping device is arranged at the top of the box body and is connected with the frame and the box body up and down; the high-pressure air bag device comprises an air bag body arranged at the bottom of the well, high-pressure air is filled in the air bag body, a booster pump is arranged to be connected with the air bag body, and the booster pump is controlled by a control system.
When the car drops, the gasbag body of well bottom can give the car ascending buffer power, and spring damping device can further produce an ascending pulling force to the box simultaneously, and the both sides are synthesized and can be directly slowed down because the speed that the free fall produced inertia when reaching the bottom to reduce the injury to personnel in the car.
Furthermore, the high-pressure gas in the air bag body is mixed with nano ultraviolet powder; and an ultraviolet detection device is also arranged at the bottom of the well and is connected with the control system, so that whether nanometer ultraviolet powder overflows or not is detected in real time, and a signal is fed back to the control system.
Once the air bag body leaks, the nano ultraviolet powder mixed in the air can also leak out. The ultraviolet detection device can immediately detect leaked nano ultraviolet powder and feed back information to the control system, and the control system controls the booster pump to inflate the airbag body and automatically gives an alarm.
Furthermore, the air bag body is also connected with a pressure detector, and the pressure detector is connected with a control system. The pressure detector can detect the pressure condition in the air bag body in real time and transmit information to the control system, and when the control system analyzes that the pressure is lower than a safety range, the booster pump is controlled to inflate the air bag body, and automatic alarm is given.
Further, the shock absorption buffer mechanism further comprises a plurality of air bag shock absorbers which are uniformly distributed at the bottom of the car. When the car tenesmus in the well bottom, the gasbag bumper shock absorber can separate the high pressure gasbag device of car and well bottom, and the gasbag bumper shock absorber is vertically upwards compressed under the action of the gravity of car, inertia and bottom high pressure gasbag device to its support to it, transversely extends to surrounding to form a buffering to the car, reduce the injury to personnel in the car.
Compared with the prior art, the invention has the following advantages and effects: according to the invention, the hydraulic motors I are arranged on two sides of the lift car and used as the assistance of the up-and-down movement of the lift car, so that the counterweight-free movement of the elevator is realized; the problem of shaking of the traction rope in the movement process is solved without a balance weight and the traction rope, and the movement safety of the elevator is greatly improved; meanwhile, the first hydraulic motor is matched with the energy storage device and the energy supplement device through the high-pressure oil pipe, the energy generated when the lift car moves is fully stored, the energy is reused in the movement of the lift car, and the energy utilization rate is high.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic diagram of the oil path structure of the present invention.
Fig. 3 is a schematic structural diagram of the piston energy storage pump of the invention.
In the drawings: the device comprises a well 1, a car 2, an automatic balance integrated controller 3, a hydraulic motor I, a high-pressure oil pipe I, an oil path controller 6, a high-pressure oil pipe II, a high-pressure oil pipe III, a branch I9, a branch II 10, an energy storage device 11, a box 12, a one-way valve 13, an oil tank 14, a shell 15, a separating piston 16, a shell 17, an inner shell 18, an air compression part 19, an oil inlet part II, a partition plate 21, an oil inlet part I22, a connecting part 23, an oil passing valve 24, a pressure sensor 25, a hydraulic motor II, a laser speed measuring device I27, a laser speed measuring device II 28, a spring damping device 29, a high-pressure air bag device 30, an air bag damper 31 and a frame 32.
Detailed Description
The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.
Referring to fig. 1-3, the present embodiment includes an elevator car 2 that ascends and descends within a hoistway 1, a driving device, an energy storage device 11, an energy supplement device 12, and a safety circuit.
An elevator track is arranged in the hoistway 1 and can be used for climbing and guiding the car 2 when moving up and down.
2 bottoms of car still are equipped with automatic balance integrated control ware 3, can be through the personnel distribution condition in gravity automated inspection car 2 to make the adjustment to 2 bottoms of car correspondingly, avoid 2 bottoms of car slope situations to appear, avoid car 2 to appear blocking phenomenon at the in-process of operation.
The drive means comprise four hydraulic motors one 4. The main bodies of the four hydraulic motors I4 are uniformly arranged on two sides of the lift car 2, the transmission shaft ends of the four hydraulic motors I are meshed with an elevator track, and the oil liquid ends are connected to an oil way controller 6 through high-pressure oil pipes I5, so that oil supply liquid enters and exits.
An oil control valve is arranged at the joint between the oil way controller 6 and the high-pressure oil pipe I5, and the oil control valve is controlled by a control system. The rotating speed of each hydraulic motor I4 can be regulated and controlled by controlling the closing angle of the oil control valve.
The oil path controller 6 is also provided with a second high-pressure oil pipe 7 and a third high-pressure oil pipe 8. The tail end of the second high-pressure oil pipe 7 is divided into a first branch 9 and a second branch 10, the first branch 9 is connected with the energy storage device 11, and the second branch 10 is connected with the energy supplementing device 12. A check valve 13 is further arranged in the second branch 10, so that oil can only flow from the energy supplementing device 12 to the direction of the first high-pressure oil pipe 5.
The high-pressure oil pipe three 8 is connected to the oil tank 14, and low-pressure oil can be stored in the oil tank 14 in a rotating mode. The oil tank 14 is connected to the energy supplement device 12 to supply oil to the energy supplement device 12.
The energy storage means 11 comprises a number of piston energy storage pumps. The piston accumulator pump comprises a housing 15 and a separating piston 16.
The housing 15 is in a sealed hollow state and includes an outer housing 17 and an inner housing 18. The outer case 17 has a hollow cylindrical structure with one end open and the other end sealed. The separation piston 16 is slidably disposed in the outer housing 17, and partitions an inner space of the outer housing 17 into an air compression portion 19 and a second oil inlet portion 20, and the air compression portion 19 and the second oil inlet portion 20 are sealed with each other.
The inner housing 18 is also of hollow cylindrical configuration and has an outer diameter which matches the inner diameter of the outer housing 17. A partition 21 is provided in the inner housing 18 to divide the inner space of the inner housing 18 into a first oil inlet portion 22 and a connecting portion 23, which are sealed with each other. The end of the connecting portion 23 is disposed in the outer housing 17, and the outer cylindrical surface of the end is in close contact with the inner wall of the outer housing 17 to form a seal. An oil passing valve 24 is arranged on one side in the connecting portion 23, one end of the oil passing valve 24 is communicated with the first oil inlet portion 22, and the other end of the oil passing valve is communicated with the second oil inlet portion 20. The first oil inlet part 22 is communicated with the first branch 9 on the second high-pressure oil pipe 7.
The energy charging device 12 includes a pressure sensor 25 and a second hydraulic motor 26. The oil end of the second hydraulic motor 26 is connected with the second branch 10 of the high-pressure oil pipe, and the transmission shaft end of the second hydraulic motor is connected with external energy to transmit mechanical energy for supplement. The pressure sensor 25 is arranged on the main pipe of the second high-pressure oil pipe 7 and connected with the control system, the oil pressure on the main pipe of the second high-pressure oil pipe 7 can be detected in real time, information is fed back to the control system, and when the detected oil pressure is lower than the oil pressure required by the rising of the first hydraulic motor 4, the control system controls the energy supplementing device 12 to supplement energy.
When the car 2 descends, oil enters the first oil inlet part 22 of the inner shell 18 through the first branch 9 of the high-pressure oil pipe II 7, fills the space of the first oil inlet part 22, enters the second oil inlet part 20 of the outer shell 17 through the oil passing valve 24, and at the moment, the oil passing valve 24 can only conduct from the first oil inlet part 22 to the second oil inlet part 20 in a single direction. After the high-pressure oil enters the oil inlet part II 20, the separating piston 16 is pushed to move, the air compression part 19 is extruded, the pressure of the air compression part 19 is increased, and energy storage is achieved.
When the lift car 2 rises and needs energy, the oil passing valve 24 is opened, the oil is conducted from the oil inlet part II 20 to the oil inlet part I22, the separating piston 16 reversely pushes the oil to return to the oil inlet part I22 under the action of high-pressure air in the air compression part 19, then the high-pressure oil pipe acts on the hydraulic motor I4, and the hydraulic motor I4 works to drive the lift car 2 to rise.
The pressure sensor 25 can detect the oil pressure in the high-pressure oil pipe II 7 in real time, and when the oil pressure transmitted by the first branch 9 is detected to be lower than the pressure required by the lift car 2 to rise, the second hydraulic motor 26 automatically works to transmit the supplementary pressure to the high-pressure oil pipe through the second branch 10, so that the lift car 2 can be ensured to obtain enough energy all the time.
The safety circuit comprises an automatic speed detection mechanism and a damping and buffering mechanism.
The automatic speed detection mechanism is connected with the control system and comprises a first laser speed measurement device 27 and a second laser speed measurement device 28 which are arranged at the top of the well 1.
The shock-absorbing buffer mechanism includes a spring shock-absorbing device 29, a high-pressure airbag device 30, and an airbag shock-absorber 31.
The cage 2 includes a frame 32 and a box 33, and the spring damper 29 is installed on the top of the box 33 to connect the frame 32 and the box 33 up and down.
The high-pressure air bag device 30 comprises an air bag body arranged at the bottom of the well 1, and high-pressure gas is filled in the air bag body and contains nano ultraviolet powder in a mixing manner. And an ultraviolet detection device is also arranged at the bottom of the well 1 and is connected with the control system, so that whether nanometer ultraviolet powder overflows or not is detected in real time, and a signal is fed back to the control system. Once the air bag body leaks, the nano ultraviolet powder mixed in the air can also leak out. The ultraviolet detection device can immediately detect leaked nano ultraviolet powder and feed back information to the control system, and the control system controls the booster pump to inflate the airbag body and automatically gives an alarm.
The air bag body is connected with a pressure detector and a booster pump, the pressure detector is connected with a control system, and the booster pump is controlled by the control system. The pressure detector can detect the pressure condition in the air bag body in real time and transmit information to the control system, and when the control system analyzes that the pressure is lower than a safety range, the booster pump is controlled to inflate the air bag body, and automatic alarm is given.
The airbag dampers 31 are uniformly distributed at the bottom of the car 2.
When the elevator runs, light emitted by the first laser speed measuring device 27 directly irradiates the bottom of the hoistway 1, and the light is reflected back and then is received again by the first laser speed measuring device 27; meanwhile, light rays emitted by the second laser speed measuring device 28 irradiate the top of the car 2, the light rays are received again by the second laser speed measuring device 28 after being reflected back, and the moving speed of the car 2 can be measured in real time according to the time difference between the reflected light rays received by the first laser speed measuring device 27 and the second laser speed measuring device 28. When the speed measured and calculated by the automatic speed detection mechanism exceeds a safety range, the speed is immediately fed back to the control system, and therefore the control system can regulate and control the speed.
When the elevator has an accidental fault and falls down, the airbag body at the bottom of the hoistway 1 can provide an upward buffering force for the car 2; the air bag damper 31 can separate the car 2 from the high-pressure air bag device 30 at the bottom of the hoistway 1, and the air bag damper 31 is compressed longitudinally and extended transversely and circumferentially under the gravity and inertia of the car 2 and the supporting effect of the bottom high-pressure air bag device 30, so that a second buffer is formed on the car 2; meanwhile, the spring damping device 29 can further generate an upward pulling force on the box body 33, and the inertia and the impact force generated when the speed generated by the free falling body reaches the bottom can be directly reduced by combining the three items, so that the injury to people in the car 2 is reduced.
Although the present invention has been described with reference to the above embodiments, it should be understood that the scope of the present invention is not limited thereto, and that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the present invention.

Claims (6)

1. The utility model provides a novel no counter weight elevator, includes control system, the elevator car and the drive arrangement that go up and down in the well, control system includes safety circuit, its characterized in that: the energy storage device and the energy supplementing device are also included; an elevator track is arranged in the hoistway, and the driving device comprises a plurality of first hydraulic motors; the first hydraulic motors are uniformly distributed on two sides of the lift car, and transmission shaft ends of the first hydraulic motors are matched with the elevator track; the first hydraulic motor is connected to the oil way controller through a high-pressure oil pipe; the oil way controller is respectively connected with the energy storage device and the energy supplement device through a first branch and a second branch of a high-pressure oil pipe II and is connected to the oil tank through a third high-pressure oil pipe; the energy storage device stores mechanical energy generated when the lift car descends through oil and provides energy for the first hydraulic motor when the lift car ascends; the energy supplementing device is connected with the oil tank, supplements energy for the hydraulic motor when the ascending energy of the lift car is insufficient, and is a piston energy storage pump which comprises a sealed hollow shell and a separation piston arranged in the shell; the shell comprises an outer shell and an inner shell, wherein part of the inner shell is arranged in the outer shell and is connected with the inner wall of the outer shell in a sealing way; a partition plate is arranged in the inner shell to partition the inner space of the inner shell into a first oil inlet part and a connecting part which are sealed mutually, the first oil inlet part is connected with a high-pressure oil pipe, and an oil passing valve is arranged in the connecting part and is communicated with the outer shell and the first oil inlet part; the separation piston divides the space in the outer shell into an air compression part and an oil inlet part II, the oil inlet part II is connected with the oil through valve, and the energy supplementing device comprises a pressure sensor and a hydraulic motor II; the oil inlet end of the second hydraulic motor is connected with the oil tank, the oil outlet end of the second hydraulic motor is connected with the second branch of the high-pressure oil pipe, and the transmission shaft end of the second hydraulic motor is connected with the motor to transfer mechanical energy for supplement; the pressure sensor is arranged in the high-pressure oil pipe II; a one-way valve is further arranged in the second branch, and the safety loop comprises an automatic speed detection mechanism connected with the control system; the automatic speed detection mechanism comprises a first laser speed measurement device and a second laser speed measurement device which are arranged at the top of the well; light emitted by the first laser speed measuring device is directly emitted to the bottom of the well, and light emitted by the second laser speed measuring device is emitted to the top of the lift car.
2. The novel counterweighted elevator of claim 1, wherein: and an automatic balance integrated controller is also arranged at the bottom of the car.
3. The novel counterweighted elevator of claim 1, wherein: the safety loop further comprises a damping and buffering mechanism, and the damping and buffering mechanism comprises a spring damping device and a high-pressure air bag device; the lift car comprises a frame and a box body, the spring damping device is arranged at the top of the box body and is connected with the frame and the box body up and down; the high-pressure air bag device comprises an air bag body arranged at the bottom of the well, high-pressure air is filled in the air bag body, a booster pump is arranged to be connected with the air bag body, and the booster pump is controlled by a control system.
4. The novel counterweighted elevator of claim 3, wherein: the high-pressure gas in the air bag body is mixed with nano ultraviolet powder; and an ultraviolet detection device is also arranged at the bottom of the well and is connected with the control system, so that whether nanometer ultraviolet powder overflows or not is detected in real time, and a signal is fed back to the control system.
5. The novel counterweighted elevator of claim 3, wherein: the air bag body is also connected with a pressure detector, and the pressure detector is connected with a control system.
6. The novel counterweighted elevator of claim 3, wherein: the shock absorption buffer mechanism further comprises a plurality of air bag shock absorbers which are uniformly distributed at the bottom of the car.
CN201810159422.1A 2018-02-26 2018-02-26 Novel counterweight-free elevator Active CN108502679B (en)

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CN201810159422.1A CN108502679B (en) 2018-02-26 2018-02-26 Novel counterweight-free elevator

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Application Number Priority Date Filing Date Title
CN201810159422.1A CN108502679B (en) 2018-02-26 2018-02-26 Novel counterweight-free elevator

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CN108502679A CN108502679A (en) 2018-09-07
CN108502679B true CN108502679B (en) 2021-01-22

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CN102102688B (en) * 2011-03-16 2013-02-13 东莞市尚正机电科技有限公司 High-speed heavy-duty linear reciprocating body operation energy storage device
CN103434988B (en) * 2013-07-29 2015-09-16 四川宏华石油设备有限公司 A kind of loop wheel machine lift system and centering guide device
CN203652982U (en) * 2013-12-28 2014-06-18 天津市广顺源机械制造有限公司 Elevator with safe air bags
CN106698156A (en) * 2017-03-09 2017-05-24 齐平 Elevator

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