CN109626179B - Energy-saving hydraulic lifter with balancing weight - Google Patents
Energy-saving hydraulic lifter with balancing weight Download PDFInfo
- Publication number
- CN109626179B CN109626179B CN201910111198.3A CN201910111198A CN109626179B CN 109626179 B CN109626179 B CN 109626179B CN 201910111198 A CN201910111198 A CN 201910111198A CN 109626179 B CN109626179 B CN 109626179B
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- Prior art keywords
- counterweight
- cylinder
- energy
- saving
- lifting
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- 238000005381 potential energy Methods 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 5
- 239000010959 steel Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 41
- 238000005303 weighing Methods 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000001174 ascending effect Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
- B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/12—Counterpoises
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Automation & Control Theory (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Elevator Control (AREA)
Abstract
The energy-saving hydraulic elevator with the counterweight comprises an elevator carriage, wherein a lifting oil cylinder for lifting is arranged below the elevator carriage, an energy-saving counterweight is arranged on the side surface of the elevator carriage, and the elevator carriage and the energy-saving counterweight are hoisted and connected from the upper part through a steel rope and a pulley for linkage; the energy-saving balance weight comprises a balance weight block, an auxiliary weighting oil cylinder which is vertically arranged and connected with the balance weight block, and a potential energy storage mechanism which is connected with the auxiliary weighting oil cylinder through an oil pipe. The potential energy storage mechanism comprises a storage cylinder and at least one counterweight cylinder, a piston rod of the counterweight cylinder extends upwards, and a counterweight is arranged above the piston rod. The energy-saving hydraulic lifter with the counterweight adopts the energy-saving counterweight, can store potential energy of descending of the lifting carriage, counteracts a part of energy in the ascending process of the lifting carriage, and can select a corresponding counterweight cylinder to store the potential energy according to the load of the lifting carriage so as to achieve the aim of saving energy to the greatest extent.
Description
Technical Field
The invention relates to the field of hydraulic lifting equipment, in particular to an energy-saving hydraulic lifter with a counterweight.
Background
Hydraulic elevators are strong in load carrying capacity, are often used to lift heavier objects such as vehicles, goods and the like, and can operate without the need to install counterweight blocks like traction elevators, with more and more widespread use. However, the lifting carriage with a large load has heavy weight, and the weight is heavier after the load is applied, so that only the hydraulic cylinder is used for lifting, and more energy is consumed; and the lifting carriage of the load descends by means of dead weight, so that gravitational potential energy is completely wasted. Therefore, an energy-saving hydraulic lifter is required to be designed urgently so as to meet the requirement of large load and achieve the effect of energy saving.
Disclosure of Invention
The invention provides an energy-saving hydraulic lifter with a counterweight, aiming at the defects of the prior art, the energy-saving hydraulic lifter with the counterweight adopts the energy-saving counterweight, can store potential energy of descending of a lifting carriage, counteracts a part of energy in the ascending process of the lifting carriage, and can select a corresponding counterweight cylinder to store the potential energy according to the load of the lifting carriage so as to maximally achieve the aim of saving energy.
The specific technical scheme of the invention is as follows: the energy-saving hydraulic lifter with the counterweight comprises a lifting carriage, wherein a lifting oil cylinder for lifting is arranged below the lifting carriage, an energy-saving counterweight is arranged on the side surface of the lifting carriage, and the lifting carriage and the energy-saving counterweight are in hoisting connection linkage from the upper part through a steel rope and a pulley; the energy-saving counterweight comprises a counterweight block, an auxiliary weighting oil cylinder vertically arranged and connected with the counterweight block, and a potential energy storage mechanism connected with the auxiliary weighting oil cylinder through an oil pipe.
The weight of the lifting carriage can be counteracted through the energy-saving balancing weight, so that an energy-saving effect is achieved; the energy-saving balance weight can store energy for the potential energy storage mechanism by utilizing the descending weight of the lifting carriage through the auxiliary weighting oil cylinder and the potential energy storage mechanism, and automatically adjusts according to the load of the lifting carriage in the lifting process of the lifting carriage, so that the weight closest to the lifting carriage is obtained, and the purpose of saving energy is achieved to a greater extent.
Preferably, the potential energy storage mechanism comprises a oil storage cylinder and at least one counterweight cylinder, wherein a piston rod of the counterweight cylinder extends upwards, and a counterweight is arranged above the piston rod.
Therefore, the oil storage cylinder is used when the lift carriage ascends in an idle load, hydraulic oil in the auxiliary weighting cylinder is stored only when the auxiliary weighting cylinder contracts, and the capacity of the oil storage cylinder is enough to store the hydraulic oil when the counterweight cylinder and the auxiliary weighting cylinder contract completely.
Preferably, the sum of the weights of the lift car and the lift cylinder piston rod is greater than the sum of the weights of the balance weight and the auxiliary weighting cylinder piston rod.
Thus, the lift car can descend by its own weight when empty.
Preferably, on-off valves are respectively arranged on the branch paths of the oil passages communicated between the oil storage cylinder, the counterweight cylinder and the auxiliary weighting cylinder.
Thus, the reservoir cylinder or the counterweight cylinder can be selectively used by on-off control of the on-off valve.
Preferably, a one-way throttle valve is arranged on a main path or a branch path of a communication oil path between the oil storage cylinder and the counterweight cylinder and the auxiliary weighting cylinder, and the one-way throttle valve throttles the oil storage cylinder and the counterweight cylinder to the auxiliary weighting cylinder.
Therefore, the one-way throttle valve can ensure that the counterweight cylinder slowly descends to provide stable pressure, and the auxiliary weighting cylinder is prevented from being high-pressure at the moment of opening the on-off valve.
As the preferable mode of the invention, the on-off valve is a two-position two-way electromagnetic directional valve, and the bottom of the lifting carriage is provided with a weighing device.
Therefore, the weighing device transfers weight data to the controller after weighing, and the controller selectively opens the corresponding two-position two-way electromagnetic directional valve, so that the corresponding oil storage cylinder or the counterweight cylinder is matched with the weight of the load of the lifting carriage, and the on-off valve can be controlled by adopting the two-position two-way electromagnetic directional valve only by switching on and off, so that the control mode is simpler and more convenient.
Preferably, at least two counterweight cylinders are provided, and the weights mounted on different counterweight cylinders have different masses.
Therefore, the weight cylinders corresponding to the balancing weights with different weights can be selected to be used according to different weights of the lifting carriage, so that the weight of the lifting carriage is matched, and the energy saving to the greatest extent is achieved.
Preferably, at least two counterweight cylinders are provided, different counterweight cylinders are arranged in a superimposed manner in the vertical direction, and the oil storage cylinder is arranged above the uppermost counterweight cylinder.
Therefore, the weight of the upper layer of the counterweight cylinder can be utilized by adopting a mode of overlapping installation, so that the weight of the counterweight block is reduced, the volume of the potential energy storage mechanism can be reduced, and the oil storage cylinder is installed at the uppermost part without adding a counterweight.
In summary, the invention has the following beneficial effects:
the energy-saving hydraulic lifter with the counterweight adopts the energy-saving counterweight, can store potential energy of descending of the lifting carriage, counteracts a part of energy in the ascending process of the lifting carriage, and can select a corresponding counterweight cylinder to store the potential energy according to the load of the lifting carriage so as to achieve the aim of saving energy to the greatest extent.
Drawings
FIG. 1 is a schematic view of an energy efficient hydraulic elevator with counterweight according to the invention;
FIG. 2 is a schematic diagram of a potential energy storage mechanism of an embodiment of an energy efficient hydraulic elevator with counterweight according to the invention;
in the figure, a lifting carriage 1-, a weighing device 11-, a lifting oil cylinder 2-, an energy-saving balancing weight 3-, a balancing weight 31-, an auxiliary weighting oil cylinder 32-and a potential energy storage mechanism 33-and a storage oil cylinder 331-and a balancing weight cylinder 332-and a balancing weight cylinder 3321-and a balancing weight 333-on/off valve 334-and a one-way throttle valve 4-steel rope 5-pulley.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings.
As shown in fig. 1, an energy-saving hydraulic lifter with a counterweight comprises a lifting carriage 1, wherein a lifting oil cylinder 2 for lifting is arranged below the lifting carriage 1, an energy-saving counterweight 3 is arranged on the side surface of the lifting carriage 1, and the lifting carriage 1 and the energy-saving counterweight 3 are in hoisting connection linkage from the upper part through a steel rope 4 and a pulley 5; the energy-saving counterweight 3 comprises a counterweight block 31, an auxiliary weighting cylinder 32 vertically arranged in connection with the counterweight block 31, and a potential energy storage mechanism 33 connected with the auxiliary weighting cylinder 32 through an oil pipe.
The weight of the lifting carriage 1 can be offset through the energy-saving balance weight 3, so that the energy-saving effect is achieved; the energy-saving balance weight 3 can store energy for the potential energy storage mechanism 33 by utilizing the descending weight of the lifting carriage 1 through the auxiliary weighting oil cylinder 32 and the potential energy storage mechanism 33, and automatically adjusts according to the load of the lifting carriage 1 in the lifting process of the lifting carriage 1, so that the weight closest to the lifting carriage 1 is obtained, and the purpose of saving energy is achieved to a greater extent.
As shown in fig. 1, the potential energy storage mechanism 33 comprises a storage cylinder 331 and at least one counterweight cylinder 332, wherein a piston rod of the counterweight cylinder 332 extends upwards, and a counterweight 3321 is arranged above the piston rod.
Thus, the reservoir cylinder 331 is used when the lift car 1 is lifted empty, the hydraulic oil in the auxiliary weighting cylinder 32 is stored only when the auxiliary weighting cylinder 32 is contracted, and the capacity of the reservoir cylinder 331 is sufficient to store the hydraulic oil when the counterweight cylinder 332 and the auxiliary weighting cylinder 32 are all contracted.
As shown in fig. 1, the sum of the weights of the lift car 1 and the piston rod of the lift cylinder 2 is greater than the sum of the weights of the balance weight 31 and the piston rod of the auxiliary weighting cylinder 32.
Thus, the lift car 1 can descend by its own weight when empty.
As shown in fig. 1, on-off valves 333 are respectively provided on the branch lines of the communication oil paths between the reservoir 331 and the counterweight 332 and the auxiliary weighting cylinder 32.
Thus, the accumulator 331 or the counterweight 332 can be selectively used by on-off control of the on-off valve 333.
As shown in fig. 1, a one-way throttle valve 334 is arranged on the total path or branch path of the oil path between the oil reservoir 331 and the counterweight 332 and the auxiliary weighting cylinder 32, and the one-way throttle valve 334 throttles the oil reservoir 331 and the counterweight 332 toward the auxiliary weighting cylinder 32.
Accordingly, by providing the one-way throttle valve 334, the counterweight cylinder 332 can be ensured to slowly descend to provide stable pressure, and the auxiliary counterweight cylinder 32 is prevented from being pressurized at the moment when the on-off valve 333 is opened.
As shown in fig. 1, the on-off valve 333 is a two-position two-way electromagnetic directional valve, and the bottom of the lifting carriage 1 is provided with a weighing device 11.
Therefore, the weighing device 11 transfers the weight data to the controller after weighing, and the controller selectively opens the corresponding two-position two-way electromagnetic directional valve to enable the corresponding oil storage cylinder 331 or the corresponding counterweight cylinder 332 to match the weight of the load of the lifting carriage 1, and the on-off valve 333 adopts the two-position two-way electromagnetic directional valve to control only by switching on and off, so that the control mode is simpler and more convenient.
Example 1:
as shown in fig. 1, at least two weight cylinders 332 are provided, and weights 3321 mounted on different weight cylinders 332 have different masses.
Thus, the weight cylinders 332 corresponding to the weights 3321 with different weights can be selected for use according to different weights of the lifting carriage 1, so as to match the weight of the lifting carriage 1, and achieve the maximum energy saving.
Example 2:
as shown in fig. 2, at least two weight cylinders 332 are provided, and different weight cylinders 332 are installed to be overlapped in the vertical direction, and a reserve cylinder 331 is installed above the uppermost weight cylinder 332.
Accordingly, the weight of the upper-layer weight cylinder 332 can be utilized by the weight cylinder 332 being stacked, so that the weight of the weight 3321 can be reduced, the volume of the potential energy storage mechanism 33 can be reduced, and the oil storage cylinder 331 is mounted uppermost without adding a weight.
The above examples are only illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention without departing from the design concept of the present invention, and the technical content of the present invention is fully described in the claims.
Claims (5)
1. An energy-saving hydraulic lifter with balancing weight is characterized in that: the lifting device comprises a lifting carriage (1), wherein a lifting oil cylinder (2) for lifting is arranged below the lifting carriage (1), an energy-saving counterweight (3) is arranged on the side surface of the lifting carriage (1), and the lifting carriage (1) and the energy-saving counterweight (3) are connected and linked in a lifting manner from the upper side through a steel cable (4) and a pulley (5); the energy-saving counterweight (3) comprises a counterweight block (31), an auxiliary weighting cylinder (32) which is vertically arranged and connected with the counterweight block (31), and a potential energy storage mechanism (33) which is connected with the auxiliary weighting cylinder (32) through an oil pipe;
the potential energy storage mechanism (33) comprises a storage cylinder (331) and at least two balance weight cylinders (332), wherein piston rods of the balance weight cylinders (332) extend upwards, and balancing weights (3321) are arranged above the piston rods;
the weights (3321) mounted on different weight cylinders (332) have different masses;
different counterweight cylinders (332) are mounted in a superimposed manner in the vertical direction, and the oil storage cylinder (331) is mounted above the uppermost counterweight cylinder (332).
2. An energy efficient hydraulic elevator with counterweight according to claim 1, wherein: the sum of the weights of the lifting carriage (1) and the piston rod of the lifting oil cylinder (2) is larger than the sum of the weights of the balance weight (31) and the piston rod of the auxiliary weighting oil cylinder (32).
3. An energy efficient hydraulic elevator with counterweight according to claim 1, wherein: and on-off valves (333) are respectively arranged on the branch paths of the oil passages communicated between the oil storage cylinder (331), the counterweight cylinder (332) and the auxiliary weighting oil cylinder (32).
4. An energy efficient hydraulic elevator with counterweight according to claim 1, wherein: the hydraulic oil storage device is characterized in that a one-way throttle valve (334) is arranged on a main path or a branch path of a communication oil path between the oil storage cylinder (331) and the counterweight cylinder (332) and the auxiliary weighting oil cylinder (32), and the one-way throttle valve (334) throttles from the oil storage cylinder (331) and the counterweight cylinder (332) to the auxiliary weighting oil cylinder (32).
5. An energy efficient hydraulic elevator with counterweight according to claim 3, wherein: the on-off valve (333) is a two-position two-way electromagnetic reversing valve, and the bottom of the lifting carriage (1) is provided with a weighing device (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111198.3A CN109626179B (en) | 2019-02-12 | 2019-02-12 | Energy-saving hydraulic lifter with balancing weight |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910111198.3A CN109626179B (en) | 2019-02-12 | 2019-02-12 | Energy-saving hydraulic lifter with balancing weight |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109626179A CN109626179A (en) | 2019-04-16 |
| CN109626179B true CN109626179B (en) | 2023-12-26 |
Family
ID=66065073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910111198.3A Active CN109626179B (en) | 2019-02-12 | 2019-02-12 | Energy-saving hydraulic lifter with balancing weight |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109626179B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54147961U (en) * | 1978-04-06 | 1979-10-15 | ||
| CN1112785A (en) * | 1993-06-01 | 1995-11-29 | 科恩股份公司 | Procedure for operating an elevator and elevator machinery |
| CN1182046A (en) * | 1996-10-28 | 1998-05-20 | 奥蒂斯电梯公司 | Hydraulic elevator having counterweight |
| EP1167270A2 (en) * | 2000-05-19 | 2002-01-02 | Carlos Alberto Sors | Elevator which counterweight is also the piston of the cilinder |
| CN1898144A (en) * | 2003-12-20 | 2007-01-17 | 斯坦纳电梯有限公司 | Improvements in or relating to drive systems of hydraulic elevators |
| CN103241619A (en) * | 2013-05-22 | 2013-08-14 | 太原理工大学 | Energy saving elevator and operation control method thereof |
| CN203294990U (en) * | 2013-04-22 | 2013-11-20 | 苏州科达液压电梯有限公司 | Energy-saving hydraulic lift |
| CN206857944U (en) * | 2017-06-29 | 2018-01-09 | 广东工业大学 | A kind of energy-saving hydraulic staircase |
| CN209853523U (en) * | 2019-02-12 | 2019-12-27 | 潘林玥 | Energy-saving hydraulic elevator with counterweight |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9709075B2 (en) * | 2011-09-11 | 2017-07-18 | Arie Yakuel | Sabbath elevator |
-
2019
- 2019-02-12 CN CN201910111198.3A patent/CN109626179B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS54147961U (en) * | 1978-04-06 | 1979-10-15 | ||
| CN1112785A (en) * | 1993-06-01 | 1995-11-29 | 科恩股份公司 | Procedure for operating an elevator and elevator machinery |
| CN1182046A (en) * | 1996-10-28 | 1998-05-20 | 奥蒂斯电梯公司 | Hydraulic elevator having counterweight |
| EP1167270A2 (en) * | 2000-05-19 | 2002-01-02 | Carlos Alberto Sors | Elevator which counterweight is also the piston of the cilinder |
| CN1898144A (en) * | 2003-12-20 | 2007-01-17 | 斯坦纳电梯有限公司 | Improvements in or relating to drive systems of hydraulic elevators |
| CN203294990U (en) * | 2013-04-22 | 2013-11-20 | 苏州科达液压电梯有限公司 | Energy-saving hydraulic lift |
| CN103241619A (en) * | 2013-05-22 | 2013-08-14 | 太原理工大学 | Energy saving elevator and operation control method thereof |
| CN206857944U (en) * | 2017-06-29 | 2018-01-09 | 广东工业大学 | A kind of energy-saving hydraulic staircase |
| CN209853523U (en) * | 2019-02-12 | 2019-12-27 | 潘林玥 | Energy-saving hydraulic elevator with counterweight |
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| Publication number | Publication date |
|---|---|
| CN109626179A (en) | 2019-04-16 |
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