CN114934925B - High-reliability electrohydraulic sliding ring valve block - Google Patents
High-reliability electrohydraulic sliding ring valve block Download PDFInfo
- Publication number
- CN114934925B CN114934925B CN202210644553.5A CN202210644553A CN114934925B CN 114934925 B CN114934925 B CN 114934925B CN 202210644553 A CN202210644553 A CN 202210644553A CN 114934925 B CN114934925 B CN 114934925B
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- Prior art keywords
- ring
- rotor
- slip ring
- rotating shaft
- stator
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Classifications
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/08—Slip-rings
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Motor Or Generator Current Collectors (AREA)
- Servomotors (AREA)
Abstract
The invention provides a high-reliability electrohydraulic sliding ring valve block, which comprises a rotor, a stator sleeved on an outer ring of the rotor and an end cover fixedly arranged on the right side of the stator, wherein a sliding ring rotating shaft is sleeved on an inner ring of the rotor, a sliding ring fixing seat fixedly arranged on the end cover is arranged between the sliding ring rotating shaft and the end cover, a plurality of rotating conducting rings are arranged at the right end of the sliding ring rotating shaft, and a fixed conducting ring corresponding to the rotating conducting rings is arranged at the left end of the sliding ring fixing seat; when the rotary conductive ring is in a non-working state, the rotary conductive ring and the fixed conductive ring are separated, so that abrasion cannot be generated between the rotary conductive ring and the fixed conductive ring, and when pressure oil is introduced into the oil duct, the pressure oil pushes the rotary conductive ring to move rightwards, so that the rotary conductive ring and the fixed conductive ring are communicated.
Description
Technical Field
The invention relates to the field of electric slide ring valve blocks, in particular to a high-reliability electric liquid slide ring valve block.
Background
The offshore wind power equipment has high maintenance cost, so that related parts of the equipment are required to have extremely high reliability, even a life maintenance-free design, and high requirements are put on the structure or operation mode of the parts. The electric slip ring and the liquid slip ring are used as core key components of a circuit and an oil circuit for connecting the rotating part and the static part in the wind power equipment, and play a role in communicating signals, power supplies and hydraulic systems of a variable pitch system, a blade control part and the like, and the reliability of the electric slip ring and the liquid slip ring is directly related to the normal operation of the whole wind power equipment.
In the prior art, the traditional electric sliding ring valve block is characterized in that brush wires and brush rings are contacted in the circumferential tangential direction under the action of resilience force of the brush wires, so that the static end and the rotary end are electrically connected. When the electric slip ring is in a non-working state, contact wear is always caused between the rotating conductive ring and the fixed conductive ring of the existing electric slip ring, and when the rebound force is insufficient for compensation, a gap is generated between the rotating conductive ring and the fixed conductive ring, so that the fault of circuit breaking is caused, and the reliability of current transmission is affected.
Disclosure of Invention
The invention aims to solve the technical problems that in the prior art, when a traditional electric slip ring is in a non-working state, contact wear is always caused between a rotating conductive ring and a fixed conductive ring, so that a gap is generated between the rotating conductive ring and the fixed conductive ring, and the reliability of current transmission is affected.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high reliability electrohydraulic sliding ring valve piece, includes the rotor, overlaps and establishes the stator of rotor outer lane, fixed mounting are in the end cover on stator right side, the inner race cover of rotor is equipped with the sliding ring pivot, the sliding ring pivot with be equipped with fixed mounting between the end cover the sliding ring fixing base on the end cover, the right-hand member of sliding ring pivot is equipped with a plurality of and rotates the conducting ring, the left end of sliding ring fixing base be equipped with rotate the conducting ring and correspond fixed conducting ring.
Further: the outer ring of the slip ring fixing seat is sleeved with a spring, the right side of the slip ring rotating shaft is provided with axially distributed spring seats, and the spring can push the spring seats leftwards so as to tightly push the slip ring rotating shaft against the inner wall of the rotor in a sealing way; the left end of rotor is equipped with the oil inlet, the circumference of stator is equipped with the oil-out, the oil inlet with communicate between the oil-out has the oil duct, the oil duct intercommunication the rotor inner circle with the cavity that forms between the slip ring pivot left side, pressure fluid in the oil duct can push away slip ring pivot right movement and then makes rotate the conducting ring butt and compress tightly fixed conducting ring.
Further: and a limiting plate which is embedded into the stator and fixedly connected to the rotor is arranged between the rotor and the end cover.
Further: the rotary conducting ring is communicated with an electric wire, and the rotor is provided with a wire cavity for the electric wire to penetrate through to the left end of the rotor.
Further: the slip ring rotating shaft is circumferentially provided with a rotation stop pin, the inner ring of the rotor is provided with a pin cavity for placing the rotation stop pin, and the slip ring rotating shaft can synchronously rotate with the rotor through the rotation stop pin.
Further: and a sealing ring and a supporting ring are arranged on the interface between the slip ring rotating shaft and the rotor.
The high-reliability electrohydraulic slip ring has the beneficial effects that when the electrohydraulic slip ring is in a non-working state, the rotary conductive ring and the fixed conductive ring are separated, so that abrasion cannot be generated between the rotary conductive ring and the fixed conductive ring, and when pressure oil is introduced into an oil duct, the pressure oil pushes the rotary conductive ring to move rightwards, so that the rotary conductive ring and the fixed conductive ring are communicated, the reliability of the electrohydraulic slip ring is greatly improved, and the service life is prolonged.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a schematic illustration of the present invention in communication with a rotating conductive ring and a stationary conductive ring;
FIG. 2 is a schematic view of the present invention with the rotating conductive ring and the stationary conductive ring apart.
In the figure, 1, a rotor, 2, a stator, 3, an end cover, 4, a slip ring rotating shaft, 5, a slip ring fixing seat, 6, a rotating conducting ring, 7, a fixed conducting ring, 8, a spring, 9, a spring seat, 10, an oil inlet, 11, an oil outlet, 12, an oil duct, 13, a limiting plate, 14, an electric wire, 15, a wire cavity, 16, a rotation stopping pin, 17, a pin cavity, 18, a sealing ring, 19 and a supporting ring.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention. On the contrary, the embodiments of the invention include all alternatives, modifications and equivalents as may be included within the spirit and scope of the appended claims.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
As shown in fig. 1 and 2, the invention provides a high-reliability electrohydraulic sliding ring valve block, which comprises a rotor 1, a stator 2 sleeved on the outer ring of the rotor 1, and an end cover 3 fixedly installed on the right side of the stator 2, wherein a sliding ring rotating shaft 4 is sleeved on the inner ring of the rotor 1, a sliding ring fixing seat 5 fixedly installed on the end cover 3 is arranged between the sliding ring rotating shaft 4 and the end cover 3, a plurality of rotating conducting rings 6 are arranged at the right end of the sliding ring rotating shaft 4, and a fixed conducting ring 7 corresponding to the rotating conducting rings 6 is arranged at the left end of the sliding ring fixing seat 5.
When the rotary conductive ring 6 and the fixed conductive ring 7 are separated in the non-working state, abrasion is not generated between the rotary conductive ring 6 and the fixed conductive ring 7, and when pressure oil is introduced into the oil duct 12, the pressure oil pushes the rotary conductive ring 6 to move rightwards, so that the rotary conductive ring 6 and the fixed conductive ring 7 are communicated.
The outer ring of the slip ring fixing seat 5 is sleeved with a spring 8, the right side of the slip ring rotating shaft 4 is provided with a spring seat 9 which is circumferentially distributed, and the spring 8 can push the spring 8 seat leftwards so as to tightly push the slip ring rotating shaft 4 on the inner wall of the rotor 1; the left end of rotor 1 is equipped with oil inlet 10, the circumference of stator 2 is equipped with oil-out 11, oil inlet 10 with communicate between the oil-out 11 has oil duct 12, oil duct 12 intercommunication rotor 1 inner circle with the cavity that forms between the slip ring pivot 4 left side, pressure fluid in the oil duct 12 can push slip ring pivot 4 remove rightwards and then makes rotate conducting ring 6 butt compress tightly fixed conducting ring 7.
When the electric slip ring is not in a working state, the spring 8 can push the slip ring rotating shaft 4 leftwards to the inner wall of the rotor 1, so that the rotating conducting ring 6 arranged on the right side of the slip ring rotating shaft 4 is far away from the fixed conducting ring 7, abrasion is avoided between the rotating conducting ring 6 and the fixed conducting ring 7, and the service life of the electric slip ring is effectively prolonged; when pressure oil exists in the oil duct 12, the pressure oil can enter a cavity formed between the inner ring of the rotor 1 and the left side of the slip ring rotating shaft 4, so that the jacking force of the spring 8 is overcome, the rotating conducting ring 6 is pressed on the fixed conducting ring 7, and the circuit is communicated.
A limiting plate 13 embedded in the stator 2 and fixedly connected to the rotor 1 is arranged between the rotor 1 and the end cover 3; during operation, the limiting plate 13 rotates along with the rotor 1, so that the abrasion force generated when the rotor 1 and the end cover 3 are in direct contact is effectively reduced, and the limiting plate 13 is embedded into the stator 2, so that the offset of the limiting plate 13 can be effectively prevented.
The rotary conducting ring 6 is communicated with an electric wire 14, and a wire cavity 15 for the electric wire 14 to penetrate through to the left end of the rotor 1 is formed in the rotor 1; the electric wire 14 is arranged at the left end of the rotor 1 in a penetrating way through the rotor 1, so that the structural space is effectively reduced.
The circumference of the slip ring rotating shaft 4 is provided with a rotation stop pin 16, the inner ring of the rotor 1 is provided with a pin cavity 17 for placing the rotation stop pin 16, and the slip ring rotating shaft 4 can synchronously rotate with the rotor 1 through the rotation stop pin 16; the rotation stop pin 16 can drive the slip ring rotating shaft 4 to synchronously rotate with the rotor 1 during operation, and meanwhile, the axial movement of the slip ring rotating shaft 4 is not influenced.
A sealing ring 18 and a supporting ring 19 are arranged on the interface between the slip ring rotating shaft 4 and the rotor 1; the sealing ring 18 and the supporting ring 19 can effectively prevent the oil duct 12 from entering the cavity formed by the right side of the rotor 1 and the slip ring rotating shaft 4, so that the cavity 15 is polluted and the normal operation of the electrohydraulic slip ring is affected.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (5)
1. The utility model provides a high reliability electrohydraulic slide ring valve piece, includes rotor (1), cover is established stator (2) of rotor (1) outer lane, fixed mounting are in end cover (3) on stator (2) right side, its characterized in that: the inner ring of the rotor (1) is sleeved with a slip ring rotating shaft (4), a slip ring fixing seat (5) fixedly installed on the end cover (3) is arranged between the slip ring rotating shaft (4) and the end cover (3), a plurality of rotating conducting rings (6) are arranged at the right end of the slip ring rotating shaft (4), and a fixed conducting ring (7) corresponding to the rotating conducting rings (6) is arranged at the left end of the slip ring fixing seat (5);
the outer ring of the slip ring fixing seat (5) is sleeved with a spring (8), the right side of the slip ring rotating shaft (4) is provided with a spring seat (9) which is circumferentially distributed, and the spring (8) can push the spring seat leftwards so as to tightly push the slip ring rotating shaft (4) on the inner wall of the rotor (1);
the left end of rotor (1) is equipped with oil inlet (10), the circumference of stator (2) is equipped with oil-out (11), oil inlet (10) with communicate between oil-out (11) has oil duct (12), oil duct (12) intercommunication rotor (1) inner circle with the cavity that forms between slip ring pivot (4) left side, pressure fluid in oil duct (12) can push slip ring pivot (4) remove and then make rotate conducting ring (6) butt compress tightly fixed conducting ring (7) right.
2. The high reliability electrohydraulic slide ring valve block of claim 1 wherein: a limiting plate (13) which is embedded into the stator (2) and fixedly connected to the rotor (1) is arranged between the rotor (1) and the end cover (3).
3. The high reliability electrohydraulic slide ring valve block of claim 1 wherein: the rotary conductive ring (6) is communicated with an electric wire (14), and the rotor (1) is provided with a wire cavity (15) for the electric wire (14) to penetrate through to the left end of the rotor (1).
4. The high reliability electrohydraulic slide ring valve block of claim 1 wherein: the circumference of the slip ring rotating shaft (4) is provided with a rotation stopping pin (16), the inner ring of the rotor (1) is provided with a pin cavity (17) for placing the rotation stopping pin (16), and the slip ring rotating shaft (4) can synchronously rotate with the rotor (1) through the rotation stopping pin (16).
5. The high reliability electrohydraulic slide ring valve block of claim 1 wherein: and a sealing ring (18) and a supporting ring (19) are arranged on the interface between the slip ring rotating shaft (4) and the rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210644553.5A CN114934925B (en) | 2022-06-09 | 2022-06-09 | High-reliability electrohydraulic sliding ring valve block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210644553.5A CN114934925B (en) | 2022-06-09 | 2022-06-09 | High-reliability electrohydraulic sliding ring valve block |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114934925A CN114934925A (en) | 2022-08-23 |
| CN114934925B true CN114934925B (en) | 2023-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210644553.5A Active CN114934925B (en) | 2022-06-09 | 2022-06-09 | High-reliability electrohydraulic sliding ring valve block |
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| Country | Link |
|---|---|
| CN (1) | CN114934925B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008695A1 (en) * | 1989-02-06 | 1990-08-09 | United Technologies Corporation | Retractable brush block |
| DE102010009221A1 (en) * | 2009-03-31 | 2010-10-07 | Heidelberger Druckmaschinen Ag | Contact-bound transmitter for transmitting e.g. electrical energy from stator over jumper ring plate in e.g. plate cylinder of printing machine, has brushes located on stator, where stator is activated or deactivated in axial direction |
| CN210838384U (en) * | 2019-12-15 | 2020-06-23 | 滕州市江晟机械制造有限公司 | Electro-hydraulic slip ring for wind power generation |
| CN211605609U (en) * | 2019-12-24 | 2020-09-29 | 江西英智科技有限公司 | Conductive slip ring |
| CN213243075U (en) * | 2021-02-04 | 2021-05-18 | 华研风电设备制造（大连）有限公司 | Variable-pitch conductive slip ring |
-
2022
- 2022-06-09 CN CN202210644553.5A patent/CN114934925B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008695A1 (en) * | 1989-02-06 | 1990-08-09 | United Technologies Corporation | Retractable brush block |
| DE102010009221A1 (en) * | 2009-03-31 | 2010-10-07 | Heidelberger Druckmaschinen Ag | Contact-bound transmitter for transmitting e.g. electrical energy from stator over jumper ring plate in e.g. plate cylinder of printing machine, has brushes located on stator, where stator is activated or deactivated in axial direction |
| CN210838384U (en) * | 2019-12-15 | 2020-06-23 | 滕州市江晟机械制造有限公司 | Electro-hydraulic slip ring for wind power generation |
| CN211605609U (en) * | 2019-12-24 | 2020-09-29 | 江西英智科技有限公司 | Conductive slip ring |
| CN213243075U (en) * | 2021-02-04 | 2021-05-18 | 华研风电设备制造（大连）有限公司 | Variable-pitch conductive slip ring |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114934925A (en) | 2022-08-23 |
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