CN110953133B - Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid - Google Patents
Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid Download PDFInfo
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- CN110953133B CN110953133B CN201911119564.6A CN201911119564A CN110953133B CN 110953133 B CN110953133 B CN 110953133B CN 201911119564 A CN201911119564 A CN 201911119564A CN 110953133 B CN110953133 B CN 110953133B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/08—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid
- F04B9/10—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid
- F04B9/109—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being fluid the fluid being liquid having plural pumping chambers
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- Reciprocating Pumps (AREA)
Abstract
The invention discloses a crankshaft connecting rod type radial piston pump capable of recovering pressure energy in waste fluid, which belongs to the technical field of fluid transmission and control and comprises a cylinder mechanism, a piston mechanism, a flow distribution mechanism and a transmission mechanism, wherein the cylinder mechanism comprises a cylinder body, a front end cover and a rear end cover, the front end cover and the rear end cover are respectively fixed at two ends of a hollow cylinder body, the piston structure comprises a guide sleeve and a piston, the guide sleeve is arranged in a cavity of the cylinder body and is sealed with a piston hole, the flow distribution mechanism comprises a front flow distribution plate, a rear flow distribution plate and a compression spring, the compression spring is arranged between the front flow distribution plate and the rear flow distribution plate, and the transmission mechanism comprises a crankshaft, a clamping ring, a bearing, a connecting rod and a clamping spring. The invention can reuse the pressure energy in the waste fluid, and can recycle the energy in the waste fluid while pressurizing the useful fluid, thereby saving the energy, reducing the consumption and saving the production cost.
Description
Technical Field
The invention relates to a crankshaft connecting rod type radial piston pump capable of recovering pressure energy in waste fluid, and belongs to the technical field of fluid transmission and control.
Background
The energy is used as a foundation stone and the root of social production development, and the consumption rate of the energy is an important index for measuring economic benefits. With the rapid development of society, the consumption and demand of energy are increasing day by day. At present, the solution of the energy crisis mainly comprises two approaches: firstly, new energy is developed to replace the traditional energy; secondly, energy is saved and the utilization rate of the energy is enhanced.
China has rich water resources, but people are few, and the demand for fresh water is very large due to large population. At present, fresh water is mainly obtained through a seawater desalination project, a large amount of waste concentrated seawater with certain pressure energy can be generated in the seawater desalination project, the waste concentrated seawater is directly discharged, the pressure energy in the waste concentrated seawater is not fully utilized, energy waste in waste fluid is caused, the manufacturing cost of the fresh water is increased, the production efficiency is reduced, and the service life and the utilization rate of seawater desalination equipment are influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a crankshaft connecting rod type radial piston pump capable of recovering pressure energy in waste fluid, which can reuse the pressure energy in the waste fluid, and can recover the energy in the waste fluid while pressurizing useful fluid, thereby saving energy, reducing consumption and production cost.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the crankshaft connecting rod type radial piston pump capable of recovering the pressure energy in the waste fluid comprises a cylinder mechanism, a piston mechanism, a flow distribution mechanism and a transmission mechanism;
the cylinder mechanism comprises a cylinder body, a front end cover and a rear end cover, wherein the front end cover and the rear end cover are respectively fixed at two ends of the hollow cylinder body, the cylinder body is radially provided with a plurality of piston holes, and a useful fluid flow channel, a waste fluid flow channel and a cylinder body flow distribution waist opening which are matched with the piston holes, and the rear end cover is provided with a useful fluid suction channel, a useful fluid discharge channel, a waste fluid suction channel and a waste fluid discharge channel;
the piston structure comprises a guide sleeve and a piston, the guide sleeve is arranged in a cavity of the cylinder body and is sealed with a piston hole, the piston divides the piston hole into a rod cavity and a rodless cavity, one end of the piston is a piston body disc, the other end of the piston is a piston rod, the piston rod is positioned in the rod cavity, and one end of the piston rod is provided with a ball socket and a clamping ring groove;
the flow distribution mechanism comprises a front flow distribution plate, a rear flow distribution plate and a compression spring, the compression spring is arranged between the front flow distribution plate and the rear flow distribution plate, one side of the front flow distribution plate, which is in contact with the cylinder body, is provided with four front flow distribution waist openings, the other side of the front flow distribution plate is drilled with four front compression spring mounting holes and is provided with four front flow distribution circular grooves communicated with the four front flow distribution waist openings, the matching surface of the rear flow distribution plate and the front flow distribution plate is provided with four circular bosses and four rear compression spring holes corresponding to the front compression spring mounting holes, two ends of the compression spring are respectively arranged in the front compression spring mounting holes and the rear compression spring holes, the middle of each circular boss is provided with four circular through grooves, connecting ribs are arranged in the four circular through grooves, the other side of the rear flow distribution plate is fixedly connected with a rear end cover, and the four circular through grooves are respectively connected with a used fluid suction channel, a used fluid discharge channel and a waste, The waste fluid discharge channels are connected;
the transmission mechanism comprises a crankshaft, a snap ring, a bearing, a connecting rod and a snap spring, a ball head of the connecting rod is connected with a piston rod through the snap ring, the other end of the connecting rod is in contact with an eccentric wheel on the crankshaft through the snap spring, one end of the crankshaft is in key connection with a front valve plate and a rear valve plate through a key, the other end of the crankshaft is in key connection with a crankshaft device through a key, and the bearing is arranged on the outer.
The technical scheme of the invention is further improved as follows: the useful fluid flow passage is Z-shaped, comprises a useful fluid horizontal drilling hole penetrating from the outer side of the cylinder body to the inner part of the cylinder body, a useful fluid vertical drilling hole penetrating through the front end of the useful fluid horizontal drilling hole and communicated with the rodless cavity, and a useful fluid Z-shaped tail drilling hole communicated with the useful fluid horizontal drilling hole, the useful fluid Z-shaped tail drilling hole is used for reaming a groove at one end to form a cylinder body flow distribution waist opening on the cylinder body, a sealing bolt is used for blocking one end of the outer side of the useful fluid horizontal drilling hole, the waste fluid flow passage is Z-shaped and comprises a waste fluid horizontal drilling hole penetrating from the inner side of the cylinder body, which is in contact with a crankshaft, to the inner part of the cylinder body, a waste fluid Z-shaped tail drilling hole communicated with the rear end of the waste fluid horizontal drilling hole and communicated with the rod cavity, and a waste fluid vertical drilling hole penetrating through the waste fluid horizontal drilling hole, one end of the waste fluid vertical drilling hole is, the plug blocks one end of the inner side of the horizontal drilling hole for the waste fluid.
The technical scheme of the invention is further improved as follows: the front end cover and the rear end cover are both provided with bearing seats and connecting threaded holes.
The technical scheme of the invention is further improved as follows: the four front flow distribution waist openings are concentric, but the distribution diameters are different.
The technical scheme of the invention is further improved as follows: the waste fluid suction channel comprises a channel, a process hole and a radial process hole, wherein the process hole and the radial process hole are communicated with the channel, the radial process hole is blocked by a plug, and the process hole is connected with the outside by a connector.
Due to the adoption of the technical scheme, the invention has the technical progress that:
the crankshaft connecting rod type radial piston pump capable of recycling the pressure energy in the waste fluid can recycle the pressure energy in the waste fluid, and can recycle the energy in the waste fluid while pressurizing the useful fluid, thereby saving the energy, reducing the consumption and saving the production cost.
The middle of the front valve plate and the middle of the rear valve plate which are matched with each other are provided with a compression spring, so that gaps on two sides can be compensated, and the leakage amount of fluid is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view taken along line C-C of FIG. 1 in accordance with the present invention;
FIG. 3 is a left side view of the present invention;
FIG. 4 is a cross-sectional view taken along line D-D of FIG. 3 of the present invention;
FIG. 5 is a schematic view of the rear port plate construction of the present invention;
FIG. 6 is a cross-sectional view taken along line A-A of FIG. 5 in accordance with the present invention;
FIG. 7 is a schematic view of a front port plate configuration of the present invention;
FIG. 8 is a cross-sectional view taken along line B-B of FIG. 7 in accordance with the present invention;
wherein, 1, a crankshaft, 2, a front end cover, 3, a guide sleeve, 4, a snap ring, 5, a piston, 6, a sealing bolt, 7, a rear end cover, 8, a front port plate, 9, a rear port plate, 10, a bearing, 11, a plug, 12, a key, 13, a compression spring, 14, a connecting rod, 15, a cylinder body, 16, a snap spring, 17, an useful fluid flow passage, 18, a waste fluid flow passage, 19, a circular through groove for flowing the useful fluid after pressurization, 20, a circular through groove for flowing the useful fluid after suction, 21, a circular through groove for flowing the waste fluid with pressure in pressing, 22, a circular through groove for flowing the waste fluid after power application, 23, a useful fluid suction passage, 24, a useful fluid discharge passage, 26, a waste fluid discharge passage, 171, a first front port, 181, a second front port, 172, a third front port, 182, a fourth front port, 251. channel, 252, process hole.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
as shown in fig. 1 to 8, the crankshaft connecting rod type radial piston pump capable of recovering pressure energy in waste fluid comprises a cylinder mechanism, a piston mechanism, a flow distribution mechanism and a transmission mechanism.
The cylinder mechanism comprises a cylinder body 15, a front end cover 2 and a rear end cover 7, wherein the front end cover 2 and the rear end cover 7 are respectively fixed at two ends of the hollow cylinder body 15, the cylinder body 15 is radially provided with a plurality of piston holes, and a useful fluid flow passage 17, a waste fluid flow passage 18 and a cylinder body flow distribution waist opening which are matched with the piston holes, and the rear end cover 7 is provided with a useful fluid suction passage 23, a useful fluid discharge passage 24, a waste fluid suction passage and a waste fluid discharge passage 26.
Piston structure includes uide bushing 3 and piston 5, and piston 5 is 5, and uide bushing 3 is installed in the cavity of cylinder body 15 and is sealed there is the piston hole, piston 5 will the piston hole is cut apart into has the pole chamber and no pole chamber, and 5 one end of piston is the piston body disc, and the other end is the piston rod, and the piston rod is located there is the pole intracavity, piston rod one end is opened there are ball socket and snap ring groove.
The flow distribution mechanism comprises a front flow distribution plate 8, a rear flow distribution plate 9 and a compression spring 13, the compression spring 13 is arranged between the front flow distribution plate 8 and the rear flow distribution plate 9, one side of the front flow distribution plate 8, which is in contact with a cylinder body 15, is provided with four front flow distribution waist openings, namely a first front flow distribution waist opening 171, a first front flow distribution waist opening 181, a first front flow distribution waist opening 172 and a first front flow distribution waist opening 182, the other side of the front flow distribution plate is drilled with four front compression spring mounting holes and is provided with four front flow distribution circular grooves communicated with the four front flow distribution waist openings, the four front flow distribution waist openings are concentric but have different distribution diameters, the matching surface of the rear flow distribution plate 9 and the front flow distribution plate 8 is provided with four circular bosses and four rear compression spring holes corresponding to the front compression spring mounting holes, two ends of the compression spring 13 are respectively arranged in the front compression spring mounting holes and the rear compression spring holes for compensating axial clearance, the middle of the circular bosses is provided with four circular through grooves, the circular through grooves are respectively a circular through groove 19 for flowing the useful fluid after pressurization, a circular through groove 20 for flowing the sucked useful fluid, a circular through groove 21 for pressing and flowing the waste fluid with pressure energy and a circular through groove 22 for discharging and flowing the waste fluid after acting, connecting ribs are arranged in the four circular through grooves, a circular boss is arranged in a circular groove of the front port plate 8 to compensate radial leakage through the matching of the front port plate and the rear port plate, the other side of the rear port plate 9 is fixedly connected with the rear end cover 7, and the four circular through grooves are respectively connected with a useful fluid suction channel 23, a useful fluid discharge channel 24, a waste fluid suction channel and a waste fluid discharge channel 26 on the rear end cover 7.
The useful fluid flow passage 17 is Z-shaped, comprising a useful fluid horizontal bore hole penetrating from the outer side of the cylinder body to the inner side of the cylinder body, a useful fluid vertical bore hole penetrating from the front end of the useful fluid horizontal bore hole and communicating with the rodless cavity, and a useful fluid Z-shaped tail end bore hole communicating with the useful fluid horizontal bore hole, one end of the useful fluid Z-shaped tail end counter bore hole is counter-bored with a groove to form a cylinder body flow distribution waist port on the cylinder body 15, the outer end of the useful fluid horizontal bore hole is blocked by a sealing bolt 6, the waste fluid flow passage 18 is Z-shaped and comprises a waste fluid horizontal bore hole penetrating from the inner side of the cylinder body 1 contacting with the crankshaft to the inner side of the cylinder body, a waste fluid Z-shaped tail end bore hole communicating with the rear end of the waste fluid horizontal bore hole and communicating with the rod cavity, and a waste fluid vertical bore hole penetrating with the waste fluid horizontal bore hole, one end of the waste fluid vertical bore hole forms another cylinder body flow, the plug 11 plugs one end of the inside of the horizontal drilling hole for the waste fluid. The front end cover 2 and the rear end cover 7 are both provided with a bearing seat and a connecting threaded hole.
In order to avoid the interference of the size of the joint and the bearing end cover when the waste fluid is pressed into the channel and is connected with the outside by using the pipe joint, the waste fluid suction channel comprises a channel 251, a process hole 252 and a radial process hole, wherein the process hole 252 is communicated with the channel 251, the radial process hole is blocked by using a screw plug, and the process hole 252 is connected with the outside by using the joint.
The transmission mechanism comprises a crankshaft 1, a clamping ring 4, a bearing 10, a connecting rod 14 and a clamping spring 16, a ball head of the connecting rod 14 is connected with a piston rod through the clamping ring 4, the other end of the connecting rod is in contact with an eccentric wheel on the crankshaft 1 through the clamping spring 16, one end of the crankshaft 1 is connected with a front valve plate 8 and a rear valve plate 9 through a key 12, the other end of the crankshaft 1 is connected with a crankshaft connector through a key and is driven to rotate by a motor, and the bearing 10 is arranged on the outer side of.
When the crankshaft connecting rod type radial piston pump capable of recovering pressure energy in waste fluid works, when a crankshaft 1 rotates, 2 or 3 pistons 5 extend outwards under the action of a connecting rod 14 and a clamp spring 16, useful fluid enters a rodless cavity through a useful fluid suction channel 23 on a rear end cover 7, a circular through groove 20 on a rear port plate 9 for sucking the useful fluid to flow, a third front port 172 on a front port plate 8 and a useful fluid flow channel 17 on a cylinder body 15, and waste fluid after acting is discharged through a waste fluid flow channel 18 on the cylinder body 15, a fourth front port 182 on the front port plate 8, a circular through groove 22 on the rear port plate 9 for discharging the waste fluid after acting to flow and a waste fluid suction channel 25 on the rear end cover 7; meanwhile, 3 or 2 pistons 5 retract under the action of the pressure energy of the crankshaft 1, the connecting rod 14 and the waste fluid to pressurize the useful fluid, wherein the waste fluid is put into a waste fluid discharge channel 26 on the rear end cover 7, a circular through groove 21 with pressure energy on the rear port plate 9 and a circular through port 181 on the front port plate 8 and a waste fluid channel 18 on the cylinder body 15 enter a rod cavity, the pressurized useful fluid is output through a useful fluid channel 17 on the cylinder body 15, a first front port 171 on the front port plate 8, a circular through groove 19 on the rear port plate 9 and a useful fluid discharge channel 24 on the rear end cover 7, the combined effect of the external force and the pressure energy in the waste fluid is realized when the useful fluid is pressurized, the energy of the waste fluid is recovered, the energy consumption is reduced, and the economy of a factory is improved, the ratio of the flow of the useful fluid to the flow of the waste fluid can be changed by changing the diameter ratio of the piston body disc and the piston rod, and the magnitude of the release pressure energy can be controlled.
Claims (5)
1. But radial piston pump of bent axle connecting rod type of pressure energy in the recoverable discarded fluid, its characterized in that: comprises a cylinder mechanism, a piston mechanism, a flow distribution mechanism and a transmission mechanism;
the cylinder mechanism comprises a cylinder body (15), a front end cover (2) and a rear end cover (7), wherein the front end cover (2) and the rear end cover (7) are respectively fixed at two ends of the hollow cylinder body (15), the cylinder body (15) is radially provided with a plurality of piston holes, a useful fluid flow channel (17) matched with the piston holes, a waste fluid flow channel (18) and a cylinder body flow distribution waist opening, and the rear end cover (7) is provided with a useful fluid suction channel (23), a useful fluid discharge channel (24), a waste fluid suction channel and a waste fluid discharge channel (26);
the piston structure comprises a guide sleeve (3) and a piston (5), the guide sleeve (3) is installed in a cavity of a cylinder body (15) and is sealed with a piston hole, the piston hole is divided into a rod cavity and a rodless cavity by the piston (5), one end of the piston (5) is a piston body disc, the other end of the piston is a piston rod, the piston rod is positioned in the rod cavity, and one end of the piston rod is provided with a ball socket and a clamping ring groove;
the flow distribution mechanism comprises a front flow distribution plate (8), a rear flow distribution plate (9) and a compression spring (13), wherein the compression spring (13) is arranged between the front flow distribution plate (8) and the rear flow distribution plate (9), one side of the front flow distribution plate (8) in contact with a cylinder body (15) is provided with four front flow distribution waist openings, the other side of the front flow distribution plate is drilled with four front compression spring mounting holes and is provided with four front flow distribution circular grooves communicated with the four front flow distribution waist openings, the matching surface of the rear flow distribution plate (9) and the front flow distribution plate (8) is provided with four circular bosses and four rear compression spring holes corresponding to the front compression spring mounting holes, two ends of the compression spring (13) are respectively arranged in the front compression spring mounting holes and the rear compression spring holes, the middle of the circular bosses is provided with four circular through grooves, connecting ribs are respectively arranged in the four circular through grooves, the other side of the rear flow distribution plate (9) is fixedly connected with a rear end cover (7), and the four circular through grooves are respectively fixedly connected with a useful fluid suction channel (23) on the rear end cover, The useful fluid discharge channel (24), the waste fluid suction channel and the waste fluid discharge channel (26) are connected;
the transmission mechanism comprises a crankshaft (1), a clamping ring (4), a bearing (10), a connecting rod (14) and a clamping spring (16), a ball head of the connecting rod (14) is connected with a piston rod through the clamping ring (4), the other end of the connecting rod is in contact with an eccentric wheel on the crankshaft (1) through the clamping spring (16), one end of the crankshaft (1) is connected with a front valve plate (8) and a rear valve plate (9) through a key (12), the other end of the crankshaft is connected with a crankshaft connector through a key, and the bearing (10) is arranged on the outer side of the crankshaft (1).
2. A crankshaft-coupled radial piston pump for recovering pressure energy in waste fluids according to claim 1, wherein: the useful fluid flow passage (17) is Z-shaped, comprises a useful fluid horizontal drilling hole penetrating from the outer side of the cylinder body to the inner part of the cylinder body, a useful fluid vertical drilling hole penetrating through the front end of the useful fluid horizontal drilling hole and communicating with the rodless cavity, and a useful fluid Z-shaped tail end drilling hole communicating with the useful fluid horizontal drilling hole, one end of the useful fluid Z-shaped tail end drilling hole is reamed to form a cylinder body flow distribution waist opening on the cylinder body (15), a sealing bolt (6) blocks one end of the outer side of the useful fluid horizontal drilling hole, the waste fluid flow passage (18) is Z-shaped and comprises a waste fluid horizontal drilling hole penetrating from the inner side of the cylinder body (1) contacting with a crankshaft to the inner part of the cylinder body, a waste fluid Z-shaped tail end drilling hole communicating with the waste fluid horizontal drilling hole and communicating with the rod cavity, and a waste fluid vertical drilling hole penetrating through the waste fluid horizontal drilling hole, one end of the waste fluid vertical drilling hole forms another cylinder body flow distribution waist opening on the cylinder body (15), the plug (11) plugs one end of the inner side of the horizontal drilling hole for waste fluid.
3. A crankshaft-coupled radial piston pump for recovering pressure energy in waste fluids according to claim 1, wherein: the front end cover (2) and the rear end cover (7) are both provided with bearing seats and connecting threaded holes.
4. A crankshaft-coupled radial piston pump for recovering pressure energy in waste fluids according to claim 1, wherein: the four front flow distribution waist openings are concentric, but the distribution diameters are different.
5. A crankshaft-coupled radial piston pump for recovering pressure energy in waste fluids according to claim 1, wherein: the waste fluid suction channel comprises a channel (251), a process hole (252) and a radial process hole, wherein the process hole (252) is communicated with the channel, the radial process hole is blocked by a screw plug, and the process hole (252) is connected with the outside by a connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119564.6A CN110953133B (en) | 2019-11-15 | 2019-11-15 | Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911119564.6A CN110953133B (en) | 2019-11-15 | 2019-11-15 | Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid |
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| Publication Number | Publication Date |
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| CN110953133A CN110953133A (en) | 2020-04-03 |
| CN110953133B true CN110953133B (en) | 2021-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911119564.6A Active CN110953133B (en) | 2019-11-15 | 2019-11-15 | Crankshaft connecting rod type radial piston pump capable of recycling pressure energy in waste fluid |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111520303B (en) * | 2020-06-01 | 2024-03-22 | 江苏天健液压科技有限公司 | Pressure energy recovery device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3780595T2 (en) * | 1986-12-19 | 1993-01-21 | Allied Signal Inc | HYDRAULIC-PNEUMATIC POWER TRANSMISSION DEVICE. |
| CN202091299U (en) * | 2011-03-28 | 2011-12-28 | 丁春生 | Positive-displacement liquid pressure energy recycling device |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| CN206468622U (en) * | 2016-12-31 | 2017-09-05 | 杭州水处理技术研究开发中心有限公司 | Outer driving rotator type energy recycle device |
-
2019
- 2019-11-15 CN CN201911119564.6A patent/CN110953133B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3780595T2 (en) * | 1986-12-19 | 1993-01-21 | Allied Signal Inc | HYDRAULIC-PNEUMATIC POWER TRANSMISSION DEVICE. |
| CN202091299U (en) * | 2011-03-28 | 2011-12-28 | 丁春生 | Positive-displacement liquid pressure energy recycling device |
| CN106286183A (en) * | 2016-10-10 | 2017-01-04 | 燕山大学 | The inclined disc type axial plunger displacement pump alive that fluid energy reclaims can be realized |
| CN106286183B (en) * | 2016-10-10 | 2018-07-13 | 燕山大学 | The inclined disc type axial work-plunger pump of fluid energy recycling can be achieved |
| CN206468622U (en) * | 2016-12-31 | 2017-09-05 | 杭州水处理技术研究开发中心有限公司 | Outer driving rotator type energy recycle device |
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