CN201825606U - Power pumping station for hydraulic elevator/hydraulic lift - Google Patents
Power pumping station for hydraulic elevator/hydraulic lift Download PDFInfo
- Publication number
- CN201825606U CN201825606U CN2010202354296U CN201020235429U CN201825606U CN 201825606 U CN201825606 U CN 201825606U CN 2010202354296 U CN2010202354296 U CN 2010202354296U CN 201020235429 U CN201020235429 U CN 201020235429U CN 201825606 U CN201825606 U CN 201825606U
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- hydraulic
- oil
- valve
- check valve
- elevator
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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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Abstract
The utility model discloses a power pumping station for a hydraulic elevator/a hydraulic lift, comprising an oil storage tank, an oil cylinder driving the elevator casing to rise or descend, an oil pump providing rising power for the oil cylinder, and a first check valve disposed on a main oil way communicating the oil pump and the oil cylinder, the power pumping station also comprises an energy storage device capable of storing high pressure hydraulic oil and providing cushioning energy for descending of the casing of the hydraulic elevator/ the hydraulic lift, the outlet and the inlet of the energy storage device are communicated with the main oil way at the outlet side of the first check valve, the outlet of the energy storage device and the connecting position of the main oil way are closer to one side of the oil cylinder than the inlet of the energy storage device, the beneficial effects of the power pumping station via adopting the technical scheme are in that: disposing of the energy storage device can greatly reduce requirement of an electro-hydraulic proportional valve for parameters, and effectively reduce flow of hydraulic oil during work of the main oil-way, thereby saving energy, and obtaining advanced control performance and optimum safety factor during descending process.
Description
Technical field
The utility model relates to hydraulic lifting machinery field, is specifically related to a kind of hydraulic elevator/hydraulic hoist power pumping plant.
Background technology
Jacking equipment several meters to more than 20 meters manned or cargo is elevator/hydraulic hoist field, tradition towed elevator/hydraulic hoist has great number input and the maintenance cost that equipment manufacturing cost and high rise elevator are more or less the same, and its principle of design makes the maintenance and the detection that must obtain high levels could guarantee higher safety factor, though and hydraulic elevator/hydraulic hoist can't be used in the high rise elevator field at present, but the hydraulic elevator of heavy amount/hydraulic hoist field has the preceence that other elevators can not replace in several meters to more than 20 meters hoisting depths, and more there are some to have the maintenance and the detection that do not need high levels and just can guarantee higher safety factor, equipment input and maintenance cost are lower, but the power pumping plant of present hydraulic elevator/hydraulic hoist both domestic and external, owing to the high-pressure and hydraulic oil that provides by oil pump, there is quite a few directly to be shunted and is back to petrol storage tank, cause energy to be wasted, cause energy consumption higher.
The utility model content
For addressing the above problem, the purpose of this utility model is to provide a kind of energy-saving hydraulic elevator/hydraulic hoist power pumping plant of low energy consumption.
For achieving the above object, the technical solution of the utility model is: a kind of hydraulic elevator/hydraulic hoist power pumping plant, comprise petrol storage tank, oil cylinder that the drive elevator box rises or descends and the oil pump that rising power is provided for oil cylinder, and first check valve that is provided with on the working connection that is communicated with between oil pump and the oil cylinder, also comprise the closed-center system that to store high-pressure and hydraulic oil and the buffering energy is provided when the casing of hydraulic elevator/hydraulic hoist need descend, the entrance and exit of described closed-center system is communicated with the working connection of the described first check valve outlet side, and the outlet of described closed-center system and the connection location of working connection are than more close described oil cylinder one side of described closed-center system inlet.
Preferably, described closed-center system comprises accumulator, the 3rd check valve, electrically-controlled valve and the hydraulic control one-way valve that can store high-pressure and hydraulic oil, the inlet of described accumulator is connected with the outlet of described the 3rd check valve, the working connection of the outlet side of the inlet of described the 3rd check valve and first check valve is communicated with, the outlet of described accumulator is connected with the inlet of described hydraulic control one-way valve, the outlet side working connection of the outlet of described hydraulic control one-way valve and the 3rd check valve is communicated with, and described electrically-controlled valve is connected with described hydraulic control one-way valve.
Preferably, also comprise and manually make a kind of hydraulic elevator/manual riser of hydraulic lifting box body rising and the manual lowering valve that a kind of hydraulic elevator/hydraulic lifting box body is descended when having a power failure, the import of described manual lowering valve is communicated with the working connection of close described oil cylinder one side, its outlet is communicated with described petrol storage tank, described manual unit comprises the manual pump and second check valve, described manual pump inlet is communicated with described petrol storage tank, its outlet is communicated with the import of described second check valve, and the outlet of described second check valve is communicated with working connection between described oil cylinder and described first check valve.
Preferably, also be provided with a shutoff valve that is used for modulated pressure oil flow between described first check valve and second check valve and the described oil cylinder.
Preferably, also be provided with one between described shutoff valve and the described oil cylinder and be used for the explosion relief valve of controlled hydraulic system pipeline in safe range.
Preferably, also be provided with one between described manual pump and the described oil cylinder and be used for filtering hydraulic pressure well cuts to guarantee the final cleaner of working connection hydraulic oil cleaning.
Preferably, also be provided with one between described oil pump and the described petrol storage tank and be used for filtering hydraulic pressure well cuts to guarantee first fil of working connection hydraulic oil cleaning.
Preferably, also be provided with a hydraulic control device that is used to monitor working connection hydraulic pressure value and automatic guidance oil pump and various valve opening or closes on the described working connection.
Preferably, also being provided with one between the import of described first check valve and the described petrol storage tank is used for the hydraulic oil of overvoltage is discharged back petrol storage tank does not exceed setting value with assurance working connection hydraulic pressure by pass valve.
Preferably, described hydraulic control device comprise the compression indicator that is used for showing the real-time hydraulic pressure value of described working connection and be used for described working connection in real time the hydraulic pressure value be converted to electric signal and send the hydraulic pressure transducer of control command to the control circuit of described oil pump and various valves.
Adopt the beneficial effect of the technical program to be: to adopt the beneficial effect of the technical program to be: the setting of closed-center system, can reduce parameter request greatly to electro-hydraulic proportional valve, and effectively reduce the flow of hydraulic oil when working in the working connection, therefore more energy-conservation, and obtain controller performance more excellent in the decline process and the safety factor of Geng Jia.
Description of drawings
Fig. 1 is the scheme drawing of a kind of hydraulic elevator of the utility model/hydraulic hoist with power pumping plant embodiment 1.
Numeral and the represented corresponding component title of letter among the figure:
1. petrol storage tank 2. oil pumps 21. first fils 22. first check valves 23. by pass valves 3. electro-hydraulic proportional valves 4. explosion relief valves 41. shutoff valves 5. oil cylinders 6. manual pumps 61. second check valves 62. final cleaners 7. manual lowering valves 81. compression indicators 82. hydraulic pressure transducers 9. closed-center systems 91. accumulators 92. the 3rd check valve 93. hydraulic control one-way valves 94. electrically-controlled valve 101. electrical controllers
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment 1, as shown in Figure 1, a kind of hydraulic elevator/hydraulic hoist power pumping plant, comprise petrol storage tank 1, oil cylinder 5 that the drive elevator box rises or descends and the oil pump 2 that rising power is provided for oil cylinder 5, and first check valve 22 that is provided with on the working connection that is communicated with between oil pump 2 and the oil cylinder 5, also comprise the closed-center system 9 that to store high-pressure and hydraulic oil and the buffering energy is provided when the casing of hydraulic elevator/hydraulic hoist need descend, closed-center system 9 comprises the accumulator 91 that can store high-pressure and hydraulic oil, one the 3rd check valve 92, an electrically-controlled valve 94 and a hydraulic control one-way valve 93, the inlet of accumulator 91 is connected with the outlet of the 3rd check valve 92, the working connection of the outlet side of the inlet of the 3rd check valve 92 and first check valve 22 is communicated with, the outlet of accumulator 91 is connected with the inlet of hydraulic control one-way valve 93, the outlet side working connection of the outlet of hydraulic control one-way valve 93 and the 3rd check valve 92 is communicated with, and electrically-controlled valve 94 is connected with the inlet side of hydraulic control one-way valve 93.Also comprise the electro-hydraulic proportional valve 3 that utilizes the shunting voltage divider principle to control elevator ascending velocity and descending speed, electro-hydraulic proportional valve 3 is communicated with working connection between the oil cylinder 2 and first check valve 22, also comprise manual riser that manually makes the elevator box rising when having a power failure and the manual lowering valve 7 that elevator box is descended, the import of manual lowering valve 7 is communicated with the working connection of close oil cylinder 5 one sides, its outlet directly is communicated with petrol storage tank 1, manual unit comprises the manual pump 6 and second check valve 61, the import of manual pump 6 is communicated with petrol storage tank 1 by final cleaner 62, its outlet is communicated with the import of stating second check valve 61, the outlet of the 21 check valve 61 is communicated with working connection between the oil cylinder 5 and first check valve 22, also be provided with a shutoff valve 41 that is used for modulated pressure oil flow between first check valve 22 and the 21 check valve 62 and the oil cylinder 5, also be provided with one between flow regulating valve 41 and the oil cylinder 5 and be used to control the interior hydraulic pressure of oil cylinder when the dangerous explosion of pipeline, pin that oil cylinder descends explosion relief valve 4, also be provided with one between oil pump 2 and the petrol storage tank 1 and be used for filtering hydraulic pressure well cuts to guarantee first fil 21 of working connection hydraulic oil cleaning, also being provided with one between the import of first check valve 21 and the petrol storage tank 1 is used for the hydraulic oil of overvoltage is discharged back petrol storage tank 1 does not exceed setting value with assurance working connection hydraulic pressure by pass valve 23, also be provided with a hydraulic control device that is used to monitor working connection hydraulic pressure value and automatic guidance oil pump 2 and various valve opening or closes on the working connection, hydraulic control device comprise be used for showing the compression indicator 81 of the real-time hydraulic pressure value of described working connection and be used for described working connection in real time the hydraulic pressure value be converted to electric signal and send the hydraulic pressure transducer 82 of control command to the control circuit of oil pump 2 and various valves.
Its principle of work is, when needing elevator to rise, start and pump in the working connection oil pump 2 filters the hydraulic oil in the petrol storage tank 1 through first fil 21 after, because the existence of first check valve 21, hydraulic oil in the working connection can not flow backwards, and when pressure was excessive in the pipeline, by pass valve 23 was opened, the hydraulic oil of overvoltage is put back to petrol storage tank 1 again, to prevent oil pump 2 stalls overload.Hydraulic oil injects working connection through first check valve 22, inject oil cylinder 5 through shutoff valve 41 and explosion relief valve 4 again, it is upwards soaring that oil cylinder 5 promotes elevator, its soaring speed is by electro-hydraulic proportional valve 3 controls, hydraulic fluid flow rate and pressure in the working connection be controlled and be shunted to electro-hydraulic proportional valve 3 can according to the accelerating curve that elevator is set, make elevator come the lifting operation according to the accelerating curve of setting, simultaneously, high-pressure and hydraulic oil in the working connection injects accumulator 91 through the 3rd check valve 92, and be stored in the accumulator 91, the effect of second check valve is worked as elevator and is arrived at a station, during flat bed, to guarantee elevator when hydraulic control one-way valve 93 is not received the signal of opening control mouthful Open valve, then elevator is pinned at institute's pause floor and the whereabouts of not drowning oneself.When the needs elevator descends, then by starting electrically-controlled valve 94, make the high-pressure and hydraulic oil in the accumulator 91 flow to hydraulic control one-way valve 93, hydraulic control one-way valve 93 is activated, high-pressure and hydraulic oil in the accumulator 91 injects working connection, makes that the oil pressure in the working connection improves, by the flow of hydraulic oil in the control electro-hydraulic proportional valve 3, hydraulic oil in working connection and the oil cylinder 5 is discharged back petrol storage tank 1, and elevator then descends according to the velocity curve of setting.The benefit of setting up closed-center system 9 is, can reduce parameter request greatly to electro-hydraulic proportional valve 3, and effectively reduce the flow of hydraulic oil when working in the working connection, therefore more energy-conservation, and obtain controller performance more excellent in the decline process and the safety factor of Geng Jia.
When having a power failure or maintenance when needing the hand hoisting elevator, manual lowering valve 7 and electro-hydraulic proportional valve 3 are closed, first check valve 22 itself just stops hydraulic oil to reflux, this moment, the M/C manual pump 6, injected hydraulic oil to working connection, to promote the oil pressure in the working connection, the existence of second check valve 61 makes the hydraulic oil in the working connection to be back to path in the petrol storage tank 1 by electro-hydraulic proportional valve, therefore, hydraulic pressure progressively raises in the working connection, makes oil cylinder 5 promote elevator and rises; When the manual down escalator of needs, press manual lowering valve 7, the hydraulic oil in the working connection flow back in the petrol storage tank 1 by manual lowering valve 7 at this moment, along with progressively descending behind the mistake of the hydraulic ram in the working connection oil, elevator also progressively descends, and also stops immediately descending up to unclamping manual lowering valve 7 elevators.
Being provided with of explosion relief valve 4 can prevent in the hydraulic efficiency pressure system oil pressure or unexpected to oil pipe cause damage and during pipe explosion locked cylinder do not fall, guarantee lift running safety, shutoff valve 41 is in order further to strengthen the control of hydraulic oil maximum flow and to close, compression indicator 81 can show the hydraulic pressure value in the working connection in real time, hydraulic pressure transducer 82 converts the hydraulic pressure value in the working connection to electric signal, and send to control circuit, control circuit is according to hydraulic pressure value electric signal, send the instruction of opening or closing to each actuating unit such as oil pump 2 and by pass valve 23 etc., electro-hydraulic proportional valve 3 is sent opening, the instruction of opening or closing.
Wherein, second check valve 61 can adopt hydraulic control one-way valve 93.
Embodiment 2, and all the other are identical with embodiment 1, and difference is, can realize the function of hydraulic control one-way valve 93 with several electrically-controlled valve and corresponding microcomputer control circuit, perhaps substitutes hydraulic control one-way valve 93 with automatically controlled threeway check valve.
Adopt the beneficial effect of the technical program to be: the setting of closed-center system, can reduce parameter request greatly to electro-hydraulic proportional valve 3, and effectively reduce the flow of hydraulic oil when working in the working connection, therefore more energy-conservation, and obtain controller performance more excellent in the decline process and the safety factor of Geng Jia.
Above-described only is preferred implementation of the present utility model; should be pointed out that for the person of ordinary skill of the art, under the prerequisite that does not break away from the utility model creation design; can also make some distortion and improvement, these all belong to protection domain of the present utility model.
Claims (10)
1. hydraulic elevator/hydraulic hoist power pumping plant, comprise petrol storage tank, oil cylinder that the drive elevator box rises or descends and the oil pump that rising power is provided for oil cylinder, and first check valve that is provided with on the working connection that is communicated with between oil pump and the oil cylinder, it is characterized in that, also comprise the closed-center system that to store high-pressure and hydraulic oil and the buffering energy is provided when the casing of hydraulic elevator/hydraulic hoist need descend, the entrance and exit of described closed-center system is communicated with the working connection of the described first check valve outlet side, and the outlet of described closed-center system and the connection location of working connection are than more close described oil cylinder one side of described closed-center system inlet.
2. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 1, it is characterized in that, described closed-center system comprises the accumulator that can store high-pressure and hydraulic oil, the 3rd check valve, electrically-controlled valve and hydraulic control one-way valve, the inlet of described accumulator is connected with the outlet of described the 3rd check valve, the working connection of the outlet side of the inlet of described the 3rd check valve and first check valve is communicated with, the outlet of described accumulator is connected with the inlet of described hydraulic control one-way valve, the outlet side working connection of the outlet of described hydraulic control one-way valve and the 3rd check valve is communicated with, and described electrically-controlled valve is connected with described hydraulic control one-way valve.
3. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 1, it is characterized in that, also comprise and manually make a kind of hydraulic elevator/manual riser of hydraulic lifting box body rising and the manual lowering valve that a kind of hydraulic elevator/hydraulic lifting box body is descended when having a power failure, the import of described manual lowering valve is communicated with the working connection of close described oil cylinder one side, its outlet is communicated with described petrol storage tank, described manual unit comprises the manual pump and second check valve, described manual pump inlet is communicated with described petrol storage tank, its outlet is communicated with the import of described second check valve, and the outlet of described second check valve is communicated with working connection between described oil cylinder and described first check valve.
4. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 3 is characterized in that, also is provided with a shutoff valve that is used for modulated pressure oil flow between described first check valve and second check valve and the described oil cylinder.
5. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 4 is characterized in that, also is provided with one between described shutoff valve and the described oil cylinder and is used for the explosion relief valve of controlled hydraulic system pipeline in safe range.
6. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 5 is characterized in that, also is provided with one between described manual pump and the described oil cylinder and is used for filtering hydraulic pressure well cuts to guarantee the final cleaner of working connection hydraulic oil cleaning.
7. as the arbitrary described a kind of hydraulic elevator/hydraulic hoist power pumping plant of claim 1 to 6, it is characterized in that, also be provided with one between described oil pump and the described petrol storage tank and be used for filtering hydraulic pressure well cuts to guarantee first fil of working connection hydraulic oil cleaning.
8. as the arbitrary described a kind of hydraulic elevator/hydraulic hoist power pumping plant of claim 1 to 6, it is characterized in that, also be provided with a hydraulic control device that is used to monitor working connection hydraulic pressure value and automatic guidance oil pump and various valve opening or closes on the described working connection.
9. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 7, it is characterized in that, also be provided with one between the import of described first check valve and the described petrol storage tank and be used for the hydraulic oil of overvoltage is discharged back petrol storage tank does not exceed setting value with assurance working connection hydraulic pressure by pass valve.
10. a kind of hydraulic elevator/hydraulic hoist power pumping plant as claimed in claim 8, it is characterized in that, described hydraulic control device comprise the compression indicator that is used for showing the real-time hydraulic pressure value of described working connection and be used for described working connection in real time the hydraulic pressure value be converted to electric signal and send the hydraulic pressure transducer of control command to the control circuit of described oil pump and various valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202354296U CN201825606U (en) | 2010-06-23 | 2010-06-23 | Power pumping station for hydraulic elevator/hydraulic lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202354296U CN201825606U (en) | 2010-06-23 | 2010-06-23 | Power pumping station for hydraulic elevator/hydraulic lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201825606U true CN201825606U (en) | 2011-05-11 |
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ID=43964156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202354296U Expired - Fee Related CN201825606U (en) | 2010-06-23 | 2010-06-23 | Power pumping station for hydraulic elevator/hydraulic lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201825606U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896135A (en) * | 2014-04-23 | 2014-07-02 | 曾梓 | Energy-saving elevator |
| CN108466899A (en) * | 2018-02-26 | 2018-08-31 | 海宁萃智智能机器人有限公司 | A kind of novel energy-saving high-efficiency elevator |
| CN108502679A (en) * | 2018-02-26 | 2018-09-07 | 海宁萃智智能机器人有限公司 | A kind of novel non-counterweight elevator |
-
2010
- 2010-06-23 CN CN2010202354296U patent/CN201825606U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103896135A (en) * | 2014-04-23 | 2014-07-02 | 曾梓 | Energy-saving elevator |
| CN103896135B (en) * | 2014-04-23 | 2017-02-15 | 曾梓 | Energy-saving elevator |
| CN108466899A (en) * | 2018-02-26 | 2018-08-31 | 海宁萃智智能机器人有限公司 | A kind of novel energy-saving high-efficiency elevator |
| CN108502679A (en) * | 2018-02-26 | 2018-09-07 | 海宁萃智智能机器人有限公司 | A kind of novel non-counterweight elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20190623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |