CN220245165U - Counterweight device for elevator compensation chain - Google Patents
Counterweight device for elevator compensation chain Download PDFInfo
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- CN220245165U CN220245165U CN202321010017.6U CN202321010017U CN220245165U CN 220245165 U CN220245165 U CN 220245165U CN 202321010017 U CN202321010017 U CN 202321010017U CN 220245165 U CN220245165 U CN 220245165U
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- compensation chain
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- 238000000034 method Methods 0.000 claims abstract description 9
- 238000005303 weighing Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 abstract description 71
- 238000010248 power generation Methods 0.000 abstract description 14
- 230000008092 positive effect Effects 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 8
- 229910052799 carbon Inorganic materials 0.000 description 8
- 238000006386 neutralization reaction Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 5
- 238000007790 scraping Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Abstract
The utility model relates to an elevator compensation chain counterweight device, and belongs to the technical field of elevator operation. The technical proposal is as follows: the bottom of the lift car (6) is provided with a lift car side hoisting device (1), the bottom of the counterweight (5) is provided with a counterweight side hoisting device (2), one end of the compensation chain (3) is wound on the lift car side hoisting device (1), and the other end is wound on the counterweight side hoisting device (2); when the elevator runs, one winding of the car side winding device (1) and the counterweight side winding device (2) is in an electric state, and the other winding is in a power generation state, so that the energy is saved and the environment is protected. The utility model has the positive effects that: the length of the compensation chain in operation is shortened, the backward slip of the elevator is prevented from occurring in the starting process, the stable starting is realized, and the stability, the balance and the comfort of passengers of an elevator system are improved; avoiding the vibration and the sloshing of the elevator car and prolonging the service life of the equipment.
Description
Technical Field
The utility model relates to an elevator compensation chain counterweight device, and belongs to the technical field of elevator operation.
Background
The elevator is an indispensable part of high-rise buildings as a vertical transportation traffic device. The elevator is pulled by a traction rope and the like to move up and down relative to the transportation carriage body and the counterweight device. The weight change on two sides of the driving traction sheave directly affects the traction capacity of the elevator, the weight difference on two sides of the traction rope is continuously increased along with the increase of floors, and when a certain value is reached, the balance on two sides is destroyed, and the traction capacity of the elevator is affected, so that the setting of a compensation chain for compensating the weight unbalance caused by the traction rope and a cable is indispensable. The elevator balance compensation chain is a component for balancing the operation of the elevator, two ends of the elevator balance compensation chain are respectively hung below the elevator car and the counterweight frame and used for balancing the weight difference of the traction rope and the travelling cable in the operation process, and along with the popularization of high-rise buildings, the development of the elevator operation technology based on carbon neutralization energy conservation is more remarkable. When the elevator is on the top floor, the hoisting ropes are on the counterweight side, which is the counterweight side that has more weight than the hoisting ropes. On the contrary, when the elevator is at the bottom layer, the traction rope is at the car side, the weight of the traction rope is increased at the car side, dynamic unbalance can be generated along with continuous up-and-down movement of the elevator, and the compensation chain exactly compensates the dynamic unbalance of the traction rope. The length and weight of the compensation chain is fixed relative to a certain elevator system. The compensation chain is continuously operated along with the operation of the elevator, and the phenomenon of shaking and the like exists in the operation process, so that if the operation speed of the elevator is high or the well is too high, the shaking of the compensation chain is more obvious. At present, a guide device is usually arranged on a compensation chain, but the guide device is usually arranged in a pit, the middle shaking of the compensation chain cannot be eliminated, the mode is inherent, the structure of a hoistway is complex, more parts are arranged, and the compensation chain is easy to scrape other parts when shaking too much, so that the compensation chain is broken, and other parts are damaged. Although the safety coefficient of the compensation chain is quite high and the breakage condition is quite rare, the risk of breakage caused by scraping other parts in the hoistway still exists. Compensating for chain breakage will have serious consequences as follows: other parts in the well can be crushed in the process of breaking down the compensation chain, so that the traction capacity of the elevator can be damaged, and personal safety accidents are caused.
The prior art that the compensation chain is scratched to prevent breaking is that a spring and a safety switch are arranged on a terminating device of the compensation chain, when the elevator is scratched to the foreign matter, the tension of the compensation chain is increased, the safety switch is triggered simultaneously by the compression spring, and a safety loop of the elevator is disconnected, so that the elevator is stopped. The technology can break the safety loop in time to stop the elevator, but when the elevator runs at a high speed, the safety loop is suddenly broken when the foreign matters are scraped, so that the elevator cuts off the power supply, the acceleration is overlarge, a certain influence can be caused on passengers in the elevator, and the passengers are easy to panic. Meanwhile, due to the existence of inertia, the elevator can still slide for a certain distance although the elevator loses power to start to stop, and the compensation chain can be pulled and broken in the sliding distance; there are also control techniques by sensor detection: when the sensor detects the abnormal compensation chain breakage, the sensor immediately sends a signal to the control system to stop the elevator. The elevator is stopped by detecting the abnormality of the compensation chain, and the risk that other parts are broken due to breakage of the compensation chain cannot be thoroughly solved.
Disclosure of Invention
The utility model aims to provide an elevator compensation chain counterweight device, which shortens the length of a compensation chain in operation, prevents backward slip of elevator starting, realizes stable starting and improves the stability, balance and passenger comfort of an elevator system; avoiding the vibration and the sloshing of the elevator car, improving the service life of the equipment and solving the technical problems existing in the prior art.
The technical scheme of the utility model is as follows:
the elevator compensation chain counterweight device is characterized in that the top of the elevator car is connected with one end of a hoisting rope, the other end of the hoisting rope is connected with the top of a counterweight, and a compensation chain is arranged between the bottom of the elevator car and the bottom of the counterweight; the bottom of the car is provided with a car side hoisting device, the bottom of the counterweight is provided with a counterweight side hoisting device, one end of the compensation chain is wound on the car side hoisting device, and the other end of the compensation chain is wound on the counterweight side hoisting device.
The car side hoisting device and the counterweight side hoisting device are all well-known and public hoisting mechanisms and comprise a roller, a traction motor and the like, and the car side hoisting device and the counterweight side hoisting device are all provided with: the device comprises a controller, a winding drum, a rope arranging device, a brake, a traction motor, a detection sensor, a power generation feedback setting controller, network communication and the like; when the elevator runs, one winding of the car side winding device and the counterweight side winding device is in an electric state, and the other unwinding is in a power generation state, so that the energy-saving carbon neutralization function is achieved.
When the elevator car is positioned at the middle position of the elevator shaft wall, the lengths of the compensating chains wound on the elevator car side hoisting device and the counterweight side hoisting device are approximately equal, so that the redundant hanging length of the compensating chains is determined.
The elevator compensation chain counterweight method based on carbon neutralization and energy saving is characterized in that a car side hoisting device is arranged at the bottom of a car, a counterweight side hoisting device is arranged at the bottom of a counterweight, one end of a compensation chain is wound on the car side hoisting device, and the other end of the compensation chain is wound on the counterweight side hoisting device; the car side winding device and the counterweight side winding device wind and unwind the compensation chain;
when the car is at the low end, the counterweight-side hoisting device runs, the compensation chain is wound, and the weight of the counterweight side is improved; the car side hoisting device releases the brake device, the car side hoisting device is unreeled due to the weight of the suspension of the compensation chain and the traction force of the winding of the counterweight side hoisting device, a traction motor of the car side hoisting device is driven by external force to be in a power generation state, and electric energy is fed back to a power grid after setting;
when the car is at the high end, the car side hoisting device runs, the compensation chain is wound, and the weight of the car side is improved; the braking device is released by the counterweight-side hoisting device, the counterweight-side hoisting device is unreeled due to the weight of the suspension of the compensation chain and the traction force of winding of the hoisting-side hoisting device, a traction motor of the counterweight-side hoisting device is driven by external force to be in a power generation state, and the electric energy is fed back to the power grid after setting.
The peak period and idle period of the elevator are considered, the controllers of the car side hoisting device and the counterweight side hoisting device monitor the weights of the car and the counterweight in real time, when the difference value of the two is smaller than a certain threshold value, the car side hoisting device and the counterweight side hoisting device are dormant and are in an energy-saving state, and when the difference value of the weights of the car and the counterweight is larger than a certain threshold value, the car side hoisting device and the counterweight side hoisting device are activated and enter a running state.
The utility model achieves energy saving through the measures and satisfies the carbon neutralization. When the car side hoisting device and the counterweight side hoisting device run, running current is monitored in real time, and the compensation chain is prevented from being broken.
When the car is positioned in the middle of the wall of the elevator shaft, the shortest length allowed by the compensation chain between the car and the counterweight is added with the winding length on the car side winding device and the counterweight side winding device, and the requirement for the actual length of the compensation chain is as follows: the length of the compensation chain calculated according to the existing standard specification is lengthened until the compensation chain does not drag the bottom when the car is positioned in the middle of the wall of the elevator shaft.
The weight of the compensating chain is calculated in accordance with the specifications of the compensating chain of the elevator.
A weight sensor is arranged on a hoisting rope between the lift car and the counterweight, and the weight of the lift car side and the counterweight side is detected in real time; the sizes of the car side hoisting device and the counterweight side hoisting device are determined according to the allowable space sizes of the car, the counterweight and the elevator shaft wall.
And respectively controlling the winding and unwinding of the compensating chain by the car side winding device and the counterweight side winding device according to the weight of the car and the counterweight side, and balancing the weight of the car to reach an optimal balance point. When people get on or off the elevator car in a flat layer, the winding and unwinding speeds of the hoisting device on the elevator car side and the hoisting device on the counterweight side are improved according to the position of the elevator car, so that the balance and stability of elevator operation are met.
Winding and unwinding of the car side hoisting device and the counterweight side hoisting device, power generation feedback setting and device braking control are completed by controllers of the car side hoisting device and the counterweight side hoisting device, and can be completed in a control system of an elevator, namely: when the elevator car runs up and down in a long distance (known by floor buttons and outer call buttons in the elevator car), controlling the electric and power generation states of the elevator car side hoisting device and the counterweight side hoisting device to run, one reel and one unreel according to the real-time value of the weighing sensor (namely the weight threshold value of the elevator car and the counterweight); if the lift car runs up and down in a short distance, the lift car side winding device and the counterweight side winding device are controlled to wind and unwind when the elevator landing stops, so that the stability of the operation of the elevator is not affected.
The winding and unwinding operation of the car side winding device and the counterweight side winding device not only compensates the balance of the elevator car and the counterweight, but also makes the compensation chain as short as possible between the car and the counterweight, reduces the operation swing amplitude of the compensation chain, avoids scraping and touching other devices in a well caused by the shaking of the compensation chain, and also reduces the risk of tearing the compensation chain.
The real-time weight of the compensation chain can be perceived through the current values of the operation of the car side hoisting device and the counterweight side hoisting device, and the detection sensors for rope containing quantity can be arranged on the car side hoisting device and the counterweight side hoisting device to monitor more and less compensation chains on the winding drum and avoid the occurrence of overrun conditions of too few and too many compensation chains on the winding drum. Different corresponding thresholds can be set for the current value and the detection value of the Rong Sheng device, and when excessive, insufficient and suddenly loosened fracture conditions of the compensation chain on the winding drum occur, the car side hoisting device and the counterweight side hoisting device stop braking and report information to the elevator controller, and when the threshold value of the compensation chain fracture is reached, the car side hoisting device and the counterweight side hoisting device stop braking and prevent the compensation chain from sagging or falling.
The utility model has the positive effects that:
1. the length of the compensation chain in operation is shortened, the weight change of the lift car and the counterweight in operation is balanced and reduced, and the power of the traction motor of the elevator can be reduced; 2. the weight difference of the counterweight and the lift car in the prior art is reduced, the backward slip of the starting of the elevator is prevented, the stable starting is realized, and the stability, the balance and the comfort of passengers of the elevator system are improved. 3. The problem of the vibration of elevator car, compensation chain's that prior art exists shake is solved, the life of equipment has been improved. 4. The ratio of the larger pulling force to the smaller pulling force in the traction ropes at the two sides of the traction wheel is reduced, and the hoisting equipment of the compensation chain can be regulated to be approximately equal. 5. The swing amplitude of the compensation chain is reduced and limited, and components in the elevator shaft wall, such as ring beams, reinforcing steel bars of the floor slab and the like are protected. 6. The brake band type brake of the car side hoisting device and the counterweight side hoisting device can prevent the compensation chain from breaking and falling and drooping. 7. When one winding of the car side winding device and the counterweight side winding device is in an electric state, the other winding is in a power generation state, so that the energy-saving carbon neutralization function is achieved. 8. The dead weight of the lift car and the counterweight when the lift runs is accurately determined, and the balance running parameters are supplied to the lift control system.
Drawings
FIG. 1 is a schematic representation of an embodiment of the present utility model;
in the figure: a car-side hoisting device 1, a counterweight-side hoisting device 2, a compensation chain 3, a hoisting rope 4, a counterweight 5, a car 6, a traction sheave 7, an anti-rope sheave 8, and an elevator shaft wall 9.
Detailed Description
The utility model is further described by way of examples with reference to the accompanying drawings.
The top of the elevator compensation chain counterweight device is connected with one end of a traction rope 4, the other end of the traction rope 4 is connected with the top of a counterweight 5, and a compensation chain 3 is arranged between the bottom of the elevator 6 and the bottom of the counterweight 5; the method is characterized in that: the bottom of the car 6 is provided with a car side hoisting device 1, the bottom of the counterweight 5 is provided with a counterweight side hoisting device 2, one end of the compensation chain 3 is wound on the car side hoisting device 1, and the other end is wound on the counterweight side hoisting device 2.
The car-side hoisting device 1 and the counterweight-side hoisting device 2 are all known and public hoisting mechanisms, and comprise a roller, a traction motor and the like, and the car-side hoisting device 1 and the counterweight-side hoisting device 2 are all provided with: the device comprises a controller, a winding drum, a rope arranging device, a brake, a traction motor, a detection sensor, a power generation feedback setting controller, network communication and the like. When the elevator runs, one winding of the car side winding device 1 and the counterweight side winding device 2 is in an electric state, and the other winding is in a power generation state, so that the energy-saving carbon neutralization function is achieved.
When the car is positioned at the middle position of the elevator shaft wall 9, the lengths of the compensating chains wound on the car-side hoisting device 1 and the counterweight-side hoisting device 2 are approximately equal, so that the redundant hanging length of the compensating chains is determined.
The elevator compensation chain counterweight method based on carbon neutralization and energy saving is characterized in that a car side hoisting device 1 is arranged at the bottom of a car 6, a counterweight side hoisting device 2 is arranged at the bottom of a counterweight 5, one end of a compensation chain 3 is wound on the car side hoisting device 1, and the other end of the compensation chain is wound on the counterweight side hoisting device 2; the car side winding device 1 and the counterweight side winding device 2 wind and unwind the compensation chain;
when the car 6 is at the low end, the counterweight-side hoisting device 2 runs, the compensation chain is wound, and the weight of the counterweight side is increased; the car side winding device 1 releases the braking device, the car side winding device 1 is unreeled due to the weight of the suspension of the compensation chain 3 and the traction force of the winding of the counterweight side winding device, a traction motor of the car side winding device 1 is driven by external force to be in a power generation state, and the electric energy is fed back to a power grid after being set;
when the car 6 is at a high end, the car side hoisting device 1 runs, the compensation chain 3 is wound, and the weight of the car side is increased; the braking device is released by the counterweight-side hoisting device 2, the counterweight-side hoisting device 2 is unreeled due to the weight of the suspension of the compensation chain 3 and the traction force of winding of the hoisting-side hoisting device, a traction motor of the counterweight-side hoisting device 2 is driven by external force to be in a power generation state, and the electric energy is fed back to a power grid after setting.
The utility model achieves energy saving through the measures and satisfies the carbon neutralization. When the car side hoisting device 1 and the counterweight side hoisting device 2 run, running current is monitored in real time, and the compensation chain 3 is prevented from being broken.
Considering the peak period and idle period of the elevator, the controllers of the car side hoisting device 1 and the counterweight side hoisting device 2 monitor the weights of the car and the counterweight in real time, when the difference value of the two is smaller than a certain threshold value, the car side hoisting device 1 and the counterweight side hoisting device 2 are dormant to be in an energy-saving state, and when the difference value of the weights of the car and the counterweight is larger than a certain threshold value, the car side hoisting device 1 and the counterweight side hoisting device 2 are activated to be in an operating state.
When the car 6 is located in the middle of the elevator shaft wall 9, the shortest length allowed by the compensation chain between the car 6 and the counterweight 5 plus the winding length on the car-side winding device 1 and the counterweight-side winding device 2, is required to be the actual length of the compensation chain 3: the compensation chain length calculated according to the existing standard specification is lengthened to the point that the compensation chain 3 does not drag down when the car is in the middle of the wall 9 of the elevator shaft.
The weight of the compensating chain 3 is calculated in accordance with the specifications of the compensating chain of the elevator.
A weight sensor is arranged on the traction rope 4 between the lift car 6 and the counterweight 5, and the weight of the lift car side and the counterweight side is detected in real time; the dimensions of the car-side hoisting device 1 and the counterweight-side hoisting device 2 are determined in view of the permitted space dimensions of the car, counterweight and hoistway wall 9.
According to the weight of the lift car and the weight of the counterweight side, the lift car side winding device 1 and the counterweight side winding device 2 are respectively controlled to wind and unwind the compensation chain, and the weight of the balance lift car reaches the optimal balance point. When people go up and down on the elevator car level, the winding and unwinding speeds of the elevator car side winding device 1 and the counterweight side winding device 2 are improved according to the position of the elevator car, so that the balance and stability of elevator operation are met.
The winding, unwinding, power generation feedback setting and device braking control of the car side winding device 1 and the counterweight side winding device 2 are completed by controllers of the car side winding device 1 and the counterweight side winding device 2, and can be also completed in a control system of an elevator, namely: when the elevator car runs up and down in a long distance (known by floor buttons and outer layer call buttons in the elevator car), the electric and power generation states of the elevator car side hoisting device 1 and the counterweight side hoisting device 2 are controlled to run, one reel and one unreel according to the real-time value of the weighing sensor (namely the weight threshold value of the elevator car and the counterweight); when the elevator car runs up and down in a short distance, the elevator car side winding device 1 and the counterweight side winding device 2 are controlled to wind and unwind when the elevator flat layer stops, so that the stability of the elevator running is not affected.
The winding and unwinding operation of the car side winding device 1 and the counterweight side winding device 2 not only compensates the balance of the elevator car and the counterweight, but also makes the compensation chain as short as possible between the car and the counterweight, reduces the operation swing amplitude of the compensation chain, avoids scraping and touching other devices in a well caused by the shaking of the compensation chain, and also reduces the risk of tearing the compensation chain.
The real-time weight of the compensation chain can be perceived through the current values of the operation of the car side hoisting device 1 and the counterweight side hoisting device 2, and the detection sensors for rope containing quantity can be arranged on the car side hoisting device 1 and the counterweight side hoisting device 2 to monitor the more and less of the compensation chain on the winding drum and avoid the occurrence of the overrun condition of too less and too much of the compensation chain on the winding drum. For the current value and the detection value of Rong Sheng, different corresponding thresholds can be set, and when excessive, insufficient and suddenly loosened breakage conditions of the compensation chain on the winding drum occur, the car-side winding device 1 and the counterweight-side winding device 2 stop braking and report information to the elevator controller, and when the compensation chain breakage threshold is reached, the car-side winding device 1 and the counterweight-side winding device 2 stop braking and prevent the compensation chain from sagging or falling.
In an embodiment: the hoisting ropes 4 between the car 6 and the counterweight 5 are supported by means of a traction sheave 7 and an anti-sheave 8.
When the car is located at the intermediate position of the hoistway wall 9, the compensating chains wound around the car-side hoisting device 1 and the counterweight-side hoisting device 2 are substantially equal, and thereby the redundant suspension length of the compensating chains is determined. When the lift car is positioned at the top of the lift shaft wall 9, the most compensating chains are wound on the lift car side hoisting device 1, and the least compensating chains are wound on the counterweight side hoisting device 2; when the lift car is positioned at the bottom of the lift shaft wall 9, the lift car side hoisting device 1 has the least compensation chains and the counterweight side hoisting device 2 has the most compensation chains; the load bearing dimensions of the drum portions of the car-side hoisting device 1 and the counterweight-side hoisting device 2 can be determined from the above-described conditions.
The size of the car-side hoisting device 1 and the counterweight-side hoisting device 2 can be different, and in general the size of the car-side hoisting device 1 is larger than the size of the counterweight-side hoisting device 2, limited by the spatial size of the hoistway wall 9. When the elevator runs, the rotation speeds of the car side hoisting device 1 and the counterweight side hoisting device 2 can be adjusted to achieve the synchronization of the linear speeds of the compensation chain on the 2 hoisting devices, so that the car side hoisting device 1 and the counterweight side hoisting device 2 are prevented from pulling the compensation chain.
When the elevator system operates, the car and the counterweight synchronously operate, the car-side hoisting device 1 and the counterweight-side hoisting device 2 also synchronously operate, and the winding and the unwinding are performed one by one. When the elevator system runs at high speed, the car side hoisting device 1 and the counterweight side hoisting device 2 synchronously retract and release at high speed; when the elevator system runs at a low speed, the car-side hoisting device 1 and the counterweight-side hoisting device 2 also synchronously run at a low speed.
Claims (2)
1. The top of the elevator compensation chain counterweight device is connected with one end of a hoisting rope (4), the other end of the hoisting rope (4) is connected with the top of a counterweight (5), and a compensation chain (3) is arranged between the bottom of the elevator car (6) and the bottom of the counterweight (5); the method is characterized in that: the bottom of the lift car (6) is provided with a lift car side hoisting device (1), the bottom of the counterweight (5) is provided with a counterweight side hoisting device (2), one end of the compensation chain (3) is wound on the lift car side hoisting device (1), and the other end is wound on the counterweight side hoisting device (2).
2. The elevator compensation chain counterweight of claim 1, wherein: and a weighing sensor is arranged on the traction rope (4) between the lift car (6) and the counterweight (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321010017.6U CN220245165U (en) | 2023-04-28 | 2023-04-28 | Counterweight device for elevator compensation chain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321010017.6U CN220245165U (en) | 2023-04-28 | 2023-04-28 | Counterweight device for elevator compensation chain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220245165U true CN220245165U (en) | 2023-12-26 |
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ID=89231821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321010017.6U Active CN220245165U (en) | 2023-04-28 | 2023-04-28 | Counterweight device for elevator compensation chain |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220245165U (en) |
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2023
- 2023-04-28 CN CN202321010017.6U patent/CN220245165U/en active Active
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