CN111689341B - Energy-saving hydraulic oil cylinder lifting system - Google Patents
Energy-saving hydraulic oil cylinder lifting system Download PDFInfo
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- CN111689341B CN111689341B CN201910199790.3A CN201910199790A CN111689341B CN 111689341 B CN111689341 B CN 111689341B CN 201910199790 A CN201910199790 A CN 201910199790A CN 111689341 B CN111689341 B CN 111689341B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
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- 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
- B66B11/02—Cages, i.e. cars
- B66B11/026—Attenuation system for shocks, vibrations, imbalance, e.g. passengers on the same side
- B66B11/0266—Passive systems
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
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- 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
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Automation & Control Theory (AREA)
- Actuator (AREA)
Abstract
The invention relates to an energy-saving hydraulic oil cylinder lifting system which comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity and an auxiliary cylinder cavity, the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston driving end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic pump pumps hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to be linked with the main plug to lift the lift car, and the lift car discharges the hydraulic oil in the main cylinder cavity and the auxiliary cylinder cavity back to the hydraulic pump and the hydraulic energy storage device by means of self gravity. The invention discloses a new scheme, which adopts a hydraulic oil cylinder with energy storage and energy-saving design to improve the utilization rate of energy and has the characteristic of high energy utilization rate.
Description
Technical Field
The invention relates to a hydraulic cylinder lifting system, in particular to an energy-saving hydraulic cylinder lifting system, and belongs to the field of hydraulic cylinders.
Background
The hydraulic oil cylinder is a driving device driven by hydraulic pressure, is a very important part in hydraulic machinery, plays the role of an output execution element in the whole hydraulic machinery, and converts hydraulic energy into mechanical energy in the whole transmission process. The hydraulic oil cylinder has the following advantages: the hydraulic system adopting the hydraulic oil cylinder can be used as a high-power output element, and has a larger pressure range compared with a cylinder of a pneumatic system; the compression ratio of the air is far greater than that of hydraulic oil, so that the working stability and the transmission response capability of the hydraulic oil cylinder are far stronger than those of an air cylinder. Therefore, the hydraulic oil cylinder has the advantages of simple structure, large output force, stable and reliable performance, convenient use and maintenance, wide application range and the like.
Disclosure of Invention
The invention discloses a novel scheme for an energy-saving hydraulic oil cylinder lifting system, which adopts a hydraulic oil cylinder with energy storage and energy-saving design to improve the utilization rate of energy and solves the problem of low energy utilization rate of the existing scheme.
The energy-saving hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity and an auxiliary cylinder cavity, the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston transmission end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic oil pump pumps the hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases the hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to be linked with the main plug to lift the lift car, the lift car discharges the hydraulic oil back to the hydraulic oil pump and the hydraulic energy storage device in the main cylinder cavity and the auxiliary cylinder cavity by depending on the self gravity, and the discharged hydraulic oil forms an energy storage state in the hydraulic energy storage device.
Further, the energy-conserving hydraulic cylinder operating system of this scheme includes hydraulic cylinder jacking system A, hydraulic cylinder jacking system B, and hydraulic cylinder jacking system A's piston drive end A is connected with hydraulic cylinder jacking system B's piston drive end B through putting up the roof beam, and the middle part of putting up the roof beam is passed through universal connector and is connected with the top of car, and the car is at hydraulic cylinder jacking system A, upward movement under hydraulic cylinder jacking system B's the common promotion.
Further, the bottom of the car of this scheme is equipped with the buffer board subassembly, and the buffer board subassembly includes top panel, lower panel, is equipped with a plurality of elastomeric element between top panel and the lower panel, and the top panel passes through elastomeric element with the lower panel and forms elastic connection, and the car forms the buffering contact through above-mentioned elastic connection and exterior structure.
Furthermore, the main plug comprises a piston head section and a piston rod section, the piston head section divides the main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other, the bottom of the lower cylinder cavity is communicated with the hydraulic pump, the upper cylinder cavity is communicated with an oil storage cabinet of the hydraulic pump, the hydraulic pump pumps hydraulic oil in the oil storage cabinet into the lower cylinder cavity to enable the piston head section to move upwards to discharge hydraulic oil in the upper cylinder cavity into the oil storage cabinet, and the lift car descends to discharge hydraulic oil in the lower cylinder cavity back into the oil storage cabinet and simultaneously pump hydraulic oil in the oil storage cabinet back into the upper cylinder cavity.
Furthermore, the surface of the piston head section on one side of the upper cylinder cavity is provided with a liquid inlet groove, the liquid inlet groove is communicated with a channel in the piston rod section to form a transfusion channel, the transfusion channel is communicated with an oil storage cabinet of the hydraulic pump, and hydraulic oil flows into or flows out of the upper cylinder cavity through the transfusion channel.
Furthermore, the hydraulic pump of the scheme is communicated with the bottom of the lower cylinder cavity through the flow valve A, the oil storage cabinet of the hydraulic pump is communicated with the upper cylinder cavity through the flow valve B, and the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston.
Furthermore, the side of the piston head section opposite to the inner wall of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the piston head section is divided into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other through the sealing rings.
Furthermore, the inner side wall of the edge of the output end outlet of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.
Furthermore, the cylinder body of the scheme is of a cylindrical structure, the main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, the auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, the main plug is of a cylindrical structure, the auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure.
Furthermore, the inside wall of the edge of the outlet of the output end of the auxiliary cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the auxiliary cylinder cavity is connected with the auxiliary plug in a sealing and sliding mode through the sealing rings.
The energy-saving hydraulic oil cylinder lifting system provided by the invention adopts the hydraulic oil cylinder with energy storage and energy-saving design to improve the energy utilization rate, and has the characteristic of high energy utilization rate.
Drawings
FIG. 1 is a schematic diagram of an energy efficient hydraulic ram lift system.
FIG. 2 is a schematic view of a hydraulic ram jacking system.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a partially enlarged view of a portion B in fig. 2.
Fig. 5 is a schematic cross-sectional view of the cylinder block.
Fig. 6 isbase:Sub>A schematic view of the sectionbase:Sub>A-base:Sub>A in fig. 5.
Fig. 7 is a schematic cross-sectional view of a piston.
The hydraulic cylinder is 100, the universal connector is 101, the sealing ring is 102, the main cylinder cavity is 110, the upper cylinder cavity is 111, the lower cylinder cavity is 112, the auxiliary cylinder cavity is 120, the main plug is 130, the liquid conveying channel is 131, the auxiliary plug is 140, the hydraulic energy storage device is 200, the hydraulic pump is 300, the flow valve A is 310, the flow valve B is 320, the car is 400, and the buffer plate assembly is 401.
Detailed Description
The energy-saving hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity and an auxiliary cylinder cavity, the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston transmission end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic oil pump pumps the hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases the hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to be linked with the main plug to lift the lift car, the lift car discharges the hydraulic oil back to the hydraulic oil pump and the hydraulic energy storage device in the main cylinder cavity and the auxiliary cylinder cavity by depending on the self gravity, and the discharged hydraulic oil forms an energy storage state in the hydraulic energy storage device. According to the scheme, the hydraulic oil cylinder with the energy storage and energy saving design is adopted to improve the utilization rate of energy, the lift car presses the hydraulic oil in the auxiliary cylinder cavity back to the hydraulic energy storage device through the auxiliary plug under the action of gravity in the piston descending process, so that part of energy is stored in the hydraulic energy storage device for subsequent utilization, and the use efficiency of the energy is improved.
Based on above scheme, in order to further improve the utilization ratio of the energy, improve the jacking ability of whole equipment, the distribution of uniform load, cause other accidents jointly after avoiding single hydraulic cylinder jacking system to break down, this scheme still discloses one kind can move alone, also can the unit of joint operation, as shown in fig. 1, the energy-conserving hydraulic cylinder operating system of this scheme includes hydraulic cylinder jacking system A, hydraulic cylinder jacking system B, hydraulic cylinder jacking system A's piston drive end A is connected with hydraulic cylinder jacking system B's piston drive end B through the frame roof beam, the middle part of frame roof beam is connected with the top of car through universal connector, the car is at hydraulic cylinder jacking system A, upward movement under hydraulic cylinder jacking system B's common promotion. Moreover, the scheme is not limited to the two hydraulic oil cylinder jacking systems, and can also be combined equipment with other quantities according with the field design and installation requirements, a single piece of equipment in the combination can be operated independently, and can also be operated with other equipment in a combined manner, if a fault occurs in the operation of the single piece of equipment, the other equipment can be accessed and operated without delay, and under the combined operation of a plurality of pieces of equipment, the fault occurs in the plurality of pieces of equipment at the same time with only a very small probability, so that the fault rate of the whole equipment is greatly reduced, and the safety of the system and the energy utilization efficiency are improved.
In order to avoid the descending of car and the hard contact of exterior structure, the bottom of the car of this scheme is equipped with the buffer board subassembly, and the buffer board subassembly includes top panel, lower panel, is equipped with a plurality of elastomeric element between top panel and the lower panel, and top panel and lower panel pass through elastomeric element and form elastic connection, and the car passes through above-mentioned elastic connection and forms the buffering contact with exterior structure.
In order to realize the jacking function of the cylinder, as shown in fig. 2, the main plug of the scheme comprises a piston head section and a piston rod section, the piston head section divides a main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other, the bottom of the lower cylinder cavity is communicated with a hydraulic pump, the upper cylinder cavity is communicated with an oil storage cabinet of the hydraulic pump, the hydraulic pump pumps hydraulic oil in the oil storage cabinet into the lower cylinder cavity so that the piston head section moves upwards to discharge hydraulic oil in the upper cylinder cavity into the oil storage cabinet, and the lift car descends to discharge the hydraulic oil in the lower cylinder cavity back into the oil storage cabinet and simultaneously pump the hydraulic oil in the oil storage cabinet back into the upper cylinder cavity. Based on the scheme, in order to realize smooth discharge of hydraulic oil in the upper cylinder cavity and avoid oil circuit blockage caused by the problem of the arrangement position of the oil outlet, as shown in fig. 7, a liquid inlet groove is formed in the surface of the piston head section, which is positioned on one side of the upper cylinder cavity, of the piston head section, the liquid inlet groove is communicated with a channel in the piston rod section to form a liquid conveying channel, the liquid conveying channel is communicated with an oil storage cabinet of the hydraulic pump, and the hydraulic oil flows into or out of the upper cylinder cavity through the liquid conveying channel. In order to adjust the moving speed of the car conveniently and keep stable speed in the ascending and descending processes, the hydraulic pump of the scheme is communicated with the bottom of the lower cylinder cavity through the flow valve A, the oil storage cabinet of the hydraulic pump is communicated with the upper cylinder cavity through the flow valve B, the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston, namely the flow valve A and the flow valve B are used for controlling the inflow and the outflow of the hydraulic oil independently or in a combined manner, so that the speed of jacking the car by the piston is adjusted. In order to guarantee the sealing performance in the process of piston movement, as shown in fig. 4, the piston head section of the scheme and the side opposite to the inner wall of the main cylinder cavity are provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the piston head section is divided into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other by the main cylinder cavity through the sealing rings. Based on the same purpose, as shown in fig. 3, the inner side wall of the edge of the outlet of the output end of the main cylinder cavity is provided with a plurality of sealing ring grooves arranged along the circumferential direction, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.
In order to realize the functions of the hydraulic cylinder body, as shown in fig. 5 and 6, the cylinder body of the scheme is of a cylindrical structure, a main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, an auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, a main plug is of a cylindrical structure, an auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure. Based on above scheme, in order to realize the sealing contact of piston and cylinder body, as shown in fig. 3, be equipped with a plurality of sealing washer annular that set up along circumference on the border inside wall of the output of this scheme's supplementary jar chamber, be equipped with the sealing washer in the sealing washer annular, assist the jar chamber through the sealing washer with assist the stopper and form sealed sliding connection.
The energy-saving hydraulic oil cylinder lifting system is not limited to the content disclosed in the specific embodiment, the technical scheme presented in the embodiment can be extended based on the understanding of the person skilled in the art, and the simple alternative scheme made by the person skilled in the art according to the scheme and the common knowledge also belongs to the scope of the scheme.
Claims (9)
1. An energy-saving hydraulic oil cylinder lifting system is characterized by comprising a hydraulic oil cylinder lifting system and a lift car, wherein the hydraulic oil cylinder lifting system comprises a hydraulic oil cylinder, a hydraulic energy storage device and a hydraulic pump, the hydraulic oil cylinder comprises a cylinder body and a piston, the cylinder body comprises a main cylinder cavity and an auxiliary cylinder cavity, the hydraulic pump is communicated with the bottom of the main cylinder cavity, the hydraulic energy storage device is communicated with the bottom of the auxiliary cylinder cavity, the piston comprises a piston driving end and a piston driving end, the piston driving end comprises a main plug and an auxiliary plug which are connected in parallel, the main plug is arranged in the main cylinder cavity, the auxiliary plug is arranged in the auxiliary cylinder cavity, the hydraulic pump pumps hydraulic oil into the main cylinder cavity to push the main plug to move upwards, the hydraulic energy storage device releases hydraulic oil into the auxiliary cylinder cavity to push the auxiliary plug to be linked with the main plug to lift the lift car, the lift car discharges the hydraulic oil in the main cylinder cavity and the auxiliary cylinder cavity back to the hydraulic pump and the hydraulic energy storage device by means of self gravity, and the discharged hydraulic oil forms a state in the hydraulic energy storage device;
energy-conserving hydraulic cylinder operating system includes hydraulic cylinder jacking system A, hydraulic cylinder jacking system B, hydraulic cylinder jacking system A's piston drive end A through put up the roof beam with hydraulic cylinder jacking system B's piston drive end B is connected, the middle part of putting up the roof beam through universal connector with the top of car is connected, the car is in upward movement under hydraulic cylinder jacking system A, the common promotion of hydraulic cylinder jacking system B.
2. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein a buffer plate assembly is arranged at the bottom of the car, the buffer plate assembly comprises an upper panel and a lower panel, a plurality of elastic components are arranged between the upper panel and the lower panel, the upper panel and the lower panel are elastically connected through the elastic components, and the car is in buffer contact with an external structure through the elastic connection.
3. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein the main plug comprises a piston head section and a piston rod section, the piston head section divides the main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other, the bottom of the lower cylinder cavity is communicated with the hydraulic pump, the upper cylinder cavity is communicated with a storage cabinet of the hydraulic pump, the hydraulic pump pumps hydraulic oil in the storage cabinet into the lower cylinder cavity so that the piston head section moves upwards to discharge hydraulic oil in the upper cylinder cavity into the storage cabinet, and the car descends to discharge hydraulic oil in the lower cylinder cavity back into the storage cabinet and simultaneously to pump hydraulic oil in the storage cabinet back into the upper cylinder cavity.
4. The energy-saving hydraulic oil cylinder lifting system according to claim 3, wherein a liquid inlet groove is formed in the surface of the piston head section on one side of the upper cylinder cavity, the liquid inlet groove is communicated with a channel in the piston rod section to form a liquid conveying channel, the liquid conveying channel is communicated with a oil storage cabinet of the hydraulic pump, and hydraulic oil flows into or flows out of the upper cylinder cavity through the liquid conveying channel.
5. The energy saving hydraulic ram lifting system of claim 3, wherein the hydraulic pump is in communication with the bottom of the lower cylinder chamber through a flow valve A, a conservator of the hydraulic pump is in communication with the upper cylinder chamber through a flow valve B, and the hydraulic pump controls the flow of hydraulic oil through the flow valve A and/or the flow valve B to adjust the moving speed of the piston.
6. The energy-saving hydraulic oil cylinder lifting system according to claim 3, wherein a plurality of circumferentially arranged sealing ring grooves are formed in the side surface of the piston head section opposite to the inner wall of the main cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the piston head section divides the main cylinder cavity into an upper cylinder cavity and a lower cylinder cavity which are not communicated with each other through the sealing rings.
7. The energy-saving hydraulic oil cylinder lifting system according to claim 3, wherein a plurality of sealing ring grooves are circumferentially arranged on the inner side wall of the edge of the output end outlet of the main cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the main cylinder cavity is in sealing sliding connection with the piston rod section through the sealing rings.
8. The energy-saving hydraulic oil cylinder lifting system according to claim 1, wherein the cylinder body is of a cylindrical structure, the main cylinder cavity is of a cylindrical structure arranged in the center of the cylinder body, the auxiliary cylinder cavity is formed between the outer side wall of the main cylinder cavity and the inner side wall of the cylinder body, the main plug is of a cylindrical structure, the auxiliary plug is of a hollow cylindrical structure, and the auxiliary plug is arranged on the periphery of the main plug to form a parallel connection structure.
9. The energy-saving hydraulic cylinder lifting system according to claim 8, wherein a plurality of sealing ring grooves are circumferentially arranged on the inner side wall of the edge of the output end outlet of the auxiliary cylinder cavity, sealing rings are arranged in the sealing ring grooves, and the auxiliary cylinder cavity is in sealing sliding connection with the auxiliary plug through the sealing rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199790.3A CN111689341B (en) | 2019-03-15 | 2019-03-15 | Energy-saving hydraulic oil cylinder lifting system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910199790.3A CN111689341B (en) | 2019-03-15 | 2019-03-15 | Energy-saving hydraulic oil cylinder lifting system |
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| CN111689341A CN111689341A (en) | 2020-09-22 |
| CN111689341B true CN111689341B (en) | 2023-01-10 |
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| CN201910199790.3A Active CN111689341B (en) | 2019-03-15 | 2019-03-15 | Energy-saving hydraulic oil cylinder lifting system |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1270960C (en) * | 2004-05-08 | 2006-08-23 | 浙江大学 | Elevator hydraulic system employing energy-saving oil cylinder |
| CN1270959C (en) * | 2004-05-08 | 2006-08-23 | 浙江大学 | Energy-saving elevator hydraulic system employing closed oil way |
| GB0511908D0 (en) * | 2005-06-11 | 2005-07-20 | Stannah Lifts Ltd | Improvements in or relating to drive systems |
| DE102010032415A1 (en) * | 2010-07-27 | 2012-02-02 | Hydac Technology Gmbh | Apparatus for recovering energy |
| CN102518513B (en) * | 2011-12-19 | 2014-04-02 | 欧益忠 | Hydraulic-control engine with movable pistons |
| CN202609736U (en) * | 2012-01-19 | 2012-12-19 | 浙江西沃电梯有限公司 | Bidirectional energy-storage hydraulic lift |
| CN204961455U (en) * | 2015-09-25 | 2016-01-13 | 圣邦集团有限公司 | Hydro -cylinder, use full cut -off formula hydraulic system of this hydro -cylinder |
| DE102015222983A1 (en) * | 2015-11-20 | 2017-05-24 | Robert Bosch Gmbh | Energy storage system |
| CN108729492A (en) * | 2018-06-06 | 2018-11-02 | 马鞍山松鹤信息科技有限公司 | A kind of oil-liquid hybrid electric excavator potential energy recovery method |
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