CN110644158A - Slip ring structure of carpet gun-bone machine, brush loss warning system of slip ring structure - Google Patents
Slip ring structure of carpet gun-bone machine, brush loss warning system of slip ring structure Download PDFInfo
- Publication number
- CN110644158A CN110644158A CN201910800079.9A CN201910800079A CN110644158A CN 110644158 A CN110644158 A CN 110644158A CN 201910800079 A CN201910800079 A CN 201910800079A CN 110644158 A CN110644158 A CN 110644158A
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- brush
- slip ring
- ring structure
- spring
- fixing plate
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C15/00—Making pile fabrics or articles having similar surface features by inserting loops into a base material
- D05C15/04—Tufting
- D05C15/08—Tufting machines
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Textile Engineering (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The invention relates to a slip ring structure of a carpet gun-thorn machine and an electric brush loss warning system of the slip ring structure, comprising: the motor comprises a shell, a rotor hollow shaft, a stator and a plurality of electric brush assemblies arranged on the inner side of the shell; the rotor hollow shaft is provided with a conducting ring; the electric brush assembly is provided with a fixed plate, and one side of the fixed plate is rotatably connected to the shell through a first horizontal rotating shaft; the electric brush is arranged opposite to the conducting ring, and one end of the electric brush is in threaded connection with the fixing plate; wherein, the surface of the electric brush is formed with an annular block sheet along the circumferential direction; the spring is sleeved on the electric brush, one end of the spring is abutted to the annular retaining sheet, and the other end of the spring is abutted to the fixing plate, so that the electric brush is in elastic contact with the conducting ring. The slip ring monitoring device has the advantages that the slip ring is easy to maintain, and the running states of the electric brush and the conducting ring can be monitored in real time, so that a worker can be quickly prompted, and the optimal maintenance time is avoided from missing.
Description
Technical Field
The invention relates to a slip ring structure of a carpet gun-thorn machine and an electric brush loss warning system of the slip ring structure.
Background
A gunning mechanism in the carpet gunning machine is driven by a rotating structure to perform gunning patterns on base cloth, wherein a part which must be used in the rotating structure is a sliding ring. The slip ring is also called as a conducting ring, is a precise power transmission device which realizes the transmission of signals, images, current and power of two relative rotating structures and can transmit power and electrical appliance signals from a fixed device to a rotating device.
The existing slip ring structure comprises a cylinder made of resin, a rotating shaft arranged on the central axis in the cylinder, electric brushes arranged on the periphery of a main shaft, and conducting rings arranged on the main shaft at intervals through insulating sheets, wherein a rotor end lead transmits a circuit or a signal to the conducting rings, brush wires of the electric brushes are in contact with the conducting rings and are transmitted to the brush wires, the brush wires are transmitted to a stator end lead, and the main shaft drives the conducting rings on the main shaft to rotate ceaselessly so as to conduct electricity or transmit signals in a rotating mode.
At present, from the use condition of the market, the performance of each aspect of the fiber bundle electric brush structure is more outstanding, and reference can be made to the Chinese patent with application number 201410088139.6, which discloses a conductive slip ring of the fiber bundle structure, the technical scheme of the conductive slip ring is that the conductive slip ring comprises a fiber bundle electric brush and a rotor, the fiber bundle electric brush comprises a printed board assembly and fiber bundle brush wires, and the fiber bundle brush wires are electrically connected with the printed board assembly; the rotor comprises an insulating sheet, a signal conducting ring and a high-power conducting ring; the fiber bundle brush wires are in elastic contact with the signal conducting rings and are used for transmitting signals; the fiber bundle brush wires are in elastic contact with the high-power conducting ring and used for transmitting power.
However, the fiber bundle brush in the invention still has the defects that the mechanical abrasion and the electrical abrasion of the fiber bundle brush wires are large, the service life of the product is prolonged, and the insulating powder generated by the friction between the fiber bundle brush wires and the insulating sheet pollutes the conducting ring, so that the signal transmission is not smooth and the cleaning and the maintenance are often needed.
Although a part of problems can be better solved by using the carbon brush structure, the traditional carbon brush structure is complex to install, and the carbon brush is not easy to maintain and replace after mechanical abrasion and electrical abrasion; in addition, as for mechanical abrasion and electrical abrasion of the carbon brush, maintenance personnel need to repair and maintain regularly, but in the maintenance interval time, the working condition of the electric brush cannot be known, once the electric brush is subjected to mechanical or electrical abrasion, the abrasion speed of the electric brush can be accelerated, the surface of the conducting ring can be subjected to larger abrasion, and larger equipment hidden danger is caused.
Disclosure of Invention
An object of the present invention is to provide a slip ring structure of a carpet embroidering machine, which has an advantage in that the slip ring is easily maintained.
The technical purpose of the invention is realized by the following technical scheme: a slip ring structure of a carpet gun punch, comprising: the hollow rotor shaft, a stator connected with the hollow rotor shaft and a cylindrical shell for supporting the stator and the rotor; and a plurality of brush assemblies arranged inside the housing; the rotor hollow shaft is provided with a plurality of insulating rings and conducting rings which are alternately arranged at equal intervals; wherein the brush assembly has: the fixed plate is an arc-shaped plate with the same radian as the conducting ring, and one side of the fixed plate is rotatably connected to the shell through a first horizontal rotating shaft; the electric brush is in a rod shape and is arranged opposite to the conducting ring, and one end of the electric brush is fixedly connected with the fixing plate; wherein, the surface of the electric brush is configured with an annular baffle plate along the circumferential direction; still include the spring, on the brush was located to the spring housing, its one end was contradicted with annular separation blade, and the other end is contradicted with the fixed plate to make brush and conducting ring elastic contact.
By adopting the technical scheme, compared with the traditional fiber bundle brush, the rod-shaped brush can reduce the insulating powder generated by the friction between the fiber bundle brush wire and the insulating sheet, and the slip ring is easy to maintain although abrasion inevitably exists; in addition, the installation mode different from the traditional electric brush is adopted, on one hand, the stable elastic conflict between the electric brush and the conducting ring is ensured, and on the other hand, the electric brush is in a threaded connection mode, so that the maintenance and the replacement of the electric brush are convenient.
The invention is further configured to: threaded holes are formed in two axial end faces of the fixing plate, and the fixing plate penetrates through end covers at two axial ends of the shell through bolts to be in threaded fit with the threaded holes in the fixing plate so as to lock the fixing plate.
Through adopting above-mentioned technical scheme, through the fastening of bolt to the fixed plate, can guarantee at equipment operation in-process, the brush can be all the time with the stable contact of conducting ring, guarantees that transmission such as signal, data gets stability.
The invention is further configured to: the housing is configured with a flip cover at a location corresponding to the brush assembly, the flip cover being configured to rotate outwardly through a second horizontal pivot axis supported on the housing to open the housing for servicing the brush assembly.
Through adopting above-mentioned technical scheme, the brush subassembly breaks down very easily, can observe after the brush subassembly goes wrong through the flip that sets up, can directly examine and repair, maintain the brush subassembly at the line when serious.
The invention is further configured to: the flip cover is connected with the shell in a buckling mode.
The invention is further configured to: the fixed plate is a polytetrafluoroethylene insulating plate made of polytetrafluoroethylene materials.
By adopting the technical scheme, because the electric brush and the conducting ring can generate electric sparks due to friction, the instantaneous temperature is higher, and the polytetrafluoroethylene has high temperature resistance and can resist the instantaneous high temperature generated in the sliding ring.
The invention is further configured to: and a plurality of wire outlet holes for the electric brush wires of the electric brush to penetrate out are axially formed in the fixed plate.
The invention is further configured to: the electric brush is sleeved with an annular film pressure sensor, and the film pressure sensor is attached to the surface of the fixing plate and elastically abutted through a spring so as to detect the elastic pressure of the spring in real time.
Through adopting above-mentioned technical scheme, the elastic pressure that the spring received can be detected in real time through the film pressure sensor who sets up, and when conducting ring or brush took place great wearing and tearing, the pressure value that the spring received is different, and the change through spring pressure data can be according to the operational aspect of judging brush and conducting ring to remind maintainer to maintain.
One object of the present invention is to provide an electric brush wear warning system, which has an advantage of monitoring the operation states of an electric brush and a conducting ring in real time, thereby quickly prompting a worker and avoiding missing the optimal maintenance time.
The technical purpose of the invention is realized by the following technical scheme: a brush wear warning system having: the slip ring structure of the carpet gun-bone machine; the micro single chip microcomputer receives the elastic pressure of the spring acquired by the film pressure sensor in the slip ring structure in real time; the display terminal is in wireless communication with the micro single-chip microcomputer and is used for displaying the data of the elastic pressure of the spring in real time; the local alarm is connected with the micro single chip microcomputer; when the detected elastic pressure of the spring exceeds a preset threshold value, the micro single chip microcomputer outputs a control signal to the on-site alarm, so that the on-site alarm is controlled to perform audible and visual alarm.
Through adopting above-mentioned technical scheme, the spring provides elasticity continuously and makes the brush can the elasticity conflict on the surface of conducting ring, and under the normal condition, the elasticity data curve of spring is comparatively steady, when the brush breaks down with the conducting ring, for example: the conducting ring is excessive with the brush wearing and tearing, and the elastic data curve of spring this moment appears jumping by a relatively large margin, and film pressure sensor can gather the elastic data of spring in real time, and miniature singlechip is through comparing with presetting the threshold value, in case surpassing and presetting the threshold value, sends out the warning, and the suggestion maintainer detects the sliding ring fast to avoid bigger occurence of failure.
The invention is further configured to: the display terminal is a PDA, a mobile phone and a display.
By adopting the technical scheme, maintenance personnel can not only observe data through the display, but also move through the handheld terminal PDA and the mobile phone to check the running state of the slip ring, and can quickly reach the site when the slip ring is abnormal, thereby avoiding missing the maximum maintenance time.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the rod-shaped electric brush is adopted to replace the traditional fiber bundle electric brush, so that the interior of the slip ring is easy to clean and maintain;
2. the fixing plate is rotatably connected to the shell and can be fixed through the bolt, so that the electric brush on the fixing plate can be maintained conveniently at a later stage;
3. the shell of the slip ring is provided with a turnover cover, so that the slip ring can be observed, maintained and overhauled when an electric brush in the slip ring is abnormal;
4. through the film pressure sensor who sets up, can detect the running state of brush and conducting ring in real time to can monitor through display terminal, thereby can indicate the staff fast, avoid missing the best maintenance time.
Drawings
FIG. 1 shows an overall schematic view of a slip ring structure of a carpet gun trigger of one embodiment of the present invention;
FIG. 2 shows a schematic view of the overall open configuration of the slip ring structure of the carpet gun bayonet of one embodiment of the present invention;
FIG. 3 illustrates a flip open configuration schematic of a slip ring configuration of a carpet gun bayonet of one embodiment of the present invention;
fig. 4 shows a system diagram of a brush wear warning system according to another embodiment of the invention.
In the figure, 1, a rotor hollow shaft; 2. a stator; 3. an electric brush assembly; 31. a fixing plate; 311. a threaded hole; 312. a bolt; 32. an electric brush; 33. a spring; 34. a signal line; 35. an annular baffle plate; 4. an insulating ring; 5. conducting rings; 6. an end cap; 7. a wire outlet hole; 8. a housing; 81. an opening; 82. a cover is turned; 9. a thin film pressure sensor; 10. a micro single chip microcomputer; 11. a local alarm; 12. a display terminal; 13. wireless WIFI; 14. a hook; 15. and (4) a bayonet.
Detailed Description
< slip ring structure of carpet gun-bone machine >
First, a slip ring structure of a carpet gun trigger according to an embodiment of the present invention will be described with reference to fig. 1, 2, and 3. FIG. 1 shows an overall schematic view of a slip ring structure of a carpet gun trigger of one embodiment of the present invention; FIG. 2 shows a schematic view of the overall open configuration of the slip ring structure of the carpet gun bayonet of one embodiment of the present invention; fig. 3 shows a schematic view of a flip open configuration of a slip ring structure of a carpet gun trigger according to an embodiment of the present invention.
The slip ring structure of carpet gun-bone machine has rotor hollow shaft 1, sets up stator 2 outside rotor hollow shaft 1, is used for supporting fixed shell 8 to rotor hollow shaft 1 and stator 2 to and set up in the inside a plurality of brush subassembly 3 of shell 8.
Specifically, the shell 8 is cylindrical, and the two ends of the shell 8 are fixedly provided with the end covers 6; the hollow rotor shaft 1 and the stator 2 are each enclosed in a housing 8 by an end cover 6.
A plurality of insulating rings 4 and a plurality of conducting rings 5 are axially arranged on the hollow rotor shaft 1, the insulating rings 4 and the conducting rings 5 are arranged at equal intervals, and the insulating rings 4 and the conducting rings 5 are alternately arranged, so that an interval for inserting the power supply brush assembly 3 is formed between the two insulating rings 4.
Taking one of the brush assemblies 3 as an example, the brush assemblies 3 are disposed opposite to the wire loops one by one, wherein the brush assembly 3 has a fixing plate 31, a brush 32, and a spring 33.
Specifically, the fixing plate 31 is used to fix the brush 32, the fixing plate 31 is an arc plate having the same radian as the conducting ring 5 or the housing 8, two end faces of the fixing plate along the axial direction almost abut against the inner wall of the end cover 6, and the fixing plate 31 is rotatably connected to the housing 8 through a first horizontal rotating shaft whose two ends are supported at two ends of the housing 8 in the axial direction.
The brush 32 is in a rod shape and can be a carbon brush or a copper brush, one end of the brush 32 is screwed on the inner bottom surface of the fixing plate 31, the surface of the upper part of the brush 32 extends outwards along the circumferential direction to form an annular stop piece 35, the spring 33 is sleeved on the brush 32 and is positioned between the annular stop piece 35 and the fixing plate 31, one end of the spring 33 abuts against the fixing plate 31, and the other end of the spring 33 abuts against the annular stop piece 35.
When the slip ring is in an operating state, the stationary plate 31 is pressed down to the conductive ring 5 side, so that the brush 32 collides against the conductive ring 5 in the space between the conductive ring 5 and the insulating ring 4 and frictionally collides against the conductive ring 5.
In order to ensure that the brush 32 can stably contact the conductive ring 5 in the operating state of the slip ring, the fixing plate 31 needs to be kept unchanged in position, so that the fixing plate 31 has threaded holes 311 formed in the end surfaces on both sides in the axial direction, the end caps 6 on both sides of the housing 8 have through holes correspondingly formed therein, and the fixing plate 31 is locked by the bolts 312 passing through the through holes and threadedly connected to the threaded holes 311 of the fixing plate 31.
The fixing plate 31 is an insulating plate made of polytetrafluoroethylene material, the polytetrafluoroethylene has excellent comprehensive performance, high temperature resistance, corrosion resistance, self lubrication and very low friction coefficient, and can bear high-temperature electric sparks generated by friction between the electric brush 32 and the conducting ring 5. The fixing plate 31 is axially provided with a plurality of wire outlet holes 7, and the brush 32 wire of the brush 32 penetrates out of the wire outlet holes 7 from the inner side of the fixing plate 31.
In order to facilitate quick inspection and maintenance of the brush 32, an opening 81 is formed in the housing 8, the position of the opening 81 is preferably such that the fixing plate 31 can be rotated out of the opening 81, a flip 82 is disposed on the opening 81, the flip 82 is rotatably connected to the opening 81 through a second horizontal rotating shaft supported on the end covers 6 at two sides, and the opening direction of the flip 82 is the same as the opening direction of the fixing plate 31.
The flip 82 is connected to the housing 8 by means of a snap connection. The snap connection has a hook 14 fixedly disposed on the outer surface of the flip 82 and a bayonet 15 opened on the housing 8 on one side of the opening 81, and when the flip 82 covers the opening 81, the hook 14 is snapped on the bayonet 15.
Because the operation state between the brush 32 and the conducting ring 5 is difficult to be mastered by maintainers, the regular inspection can find problems in time, but the abnormal operation occurs in the time period between the inspections and is difficult to be perceived, therefore, the operation states of the brush 32 and the conducting ring 5 need to be detected in real time, the brush 32 is sleeved with the annular film pressure sensor 9, one side of the film pressure sensor 9 is bonded on the inner surface of the fixing plate 31, and the other side of the film pressure sensor is tightly pressed by the spring 33, so that the data change of the elastic pressure of the spring 33 can be detected in real time, and the operation conditions of the brush 32 and the conducting ring 5 can be judged.
< Brush wear warning System >
A brush wear warning system according to an embodiment of the present invention is described with reference to fig. 4. Fig. 4 shows a system diagram of a brush wear warning system according to another embodiment of the invention.
This warning system has film pressure sensor 9, miniature singlechip 10, display terminal 12 to and alarm 11 on the spot, film pressure sensor 9 connects miniature singlechip 10 and connects, and display terminal 12 passes through wireless WIFI13 and miniature singlechip 10 wireless communication, and alarm 11 is connected with miniature singlechip 10 on the spot.
The film pressure sensor 9 is used for acquiring the elastic pressure of the spring 33 in real time, the micro single chip microcomputer 10 is used for receiving the elastic pressure of the spring 33 acquired by the film pressure sensor 9 in real time, the display terminal 12 is used for displaying the data of the elastic pressure of the spring 33 in real time, and the on-site alarm 11 is used for on-site audible and visual alarm.
When the slip ring is in a working state, the film pressure sensor 9 detects the elastic pressure of the spring 33 in real time, transmits an elastic pressure signal to the micro single-chip microcomputer 10, compares the elastic pressure signal with a preset elastic pressure threshold value, and when the real-time detected elastic pressure value exceeds the preset threshold value, the micro single-chip microcomputer 10 outputs a control signal to the local alarm 11, so that the local alarm 11 is controlled to perform sound and light alarm.
In addition, the abnormality is displayed to the maintenance person through the display terminal 12, and the maintenance person makes a decision quickly. The display terminal 12 here may be a display, a PDA, or a cell phone.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. A slip ring structure of a carpet gun thorn machine is characterized by comprising:
the rotor comprises a hollow rotor shaft (1), a stator (2) connected with the hollow rotor shaft (1), and a cylindrical shell (8) supporting the stator (2) and the rotor; and
a plurality of brush (32) assemblies (3) arranged inside the housing (8);
wherein, a plurality of insulating rings (4) and conducting rings (5) which are alternately arranged at equal intervals are arranged on the hollow rotor shaft (1);
wherein the brush (32) assembly (3) has:
the fixed plate (31) is an arc-shaped plate with the same radian as the conducting ring (5), and one side of the fixed plate (31) is rotatably connected to the shell (8) through a first horizontal rotating shaft;
a rod-shaped brush (32) disposed opposite to the conductive ring (5), one end of the brush (32) being screwed to the fixing plate (31);
wherein the surface of the brush (32) is configured to form an annular catch (35) along the circumferential direction;
the electric brush is characterized by further comprising a spring (33), wherein the spring (33) is sleeved on the electric brush (32), one end of the spring (33) is abutted against the annular retaining sheet (35), and the other end of the spring (33) is abutted against the fixing plate (31), so that the electric brush (32) is in elastic contact with the conducting ring (5).
2. The slip ring structure of a carpet gun punch according to claim 1,
threaded holes (311) are formed in two axial end faces of the fixing plate (31), the fixing plate (31) penetrates through end covers (6) at two axial ends of the shell (8) through bolts (312) to be in threaded fit with the threaded holes (311) in the fixing plate (31), and the fixing plate (31) is locked.
3. The slip ring structure of a carpet gun punch according to claim 1 or 2,
the housing (8) is formed with a flap (82) at a position corresponding to the brush (32) assembly (3), the flap (82) being pivoted outwardly by a second horizontal pivot supported on the housing (8) to open the housing (8) for maintenance of the brush (32) assembly (3).
4. The slip ring structure of a carpet gun punch according to claim 3,
the flip cover (82) is connected with the shell (8) in a buckling mode.
5. The slip ring structure of a carpet gun punch according to claim 1,
the fixing plate (31) is a polytetrafluoroethylene insulating plate made of polytetrafluoroethylene materials.
6. The slip ring structure of a carpet gun punch according to claim 1,
and a plurality of wire outlet holes (7) for allowing the wires of the electric brushes (32) to penetrate out are formed in the fixing plate (31) along the axial direction.
7. The slip ring structure of a carpet gun punch according to claim 1,
the electric brush (32) is sleeved with an annular film pressure sensor (9), the film pressure sensor (9) is attached to the surface of the fixing plate (31) and elastically abutted through a spring (33) so as to detect the elastic pressure of the spring (33) in real time.
8. A brush (32) wear warning system, comprising:
the slip ring structure of the carpet gun punched machine of any one of claims 1 to 6;
the micro single chip microcomputer (10) receives the elastic pressure of the spring (33) acquired by a film pressure sensor (9) in the slip ring structure in real time;
the display terminal (12) is in wireless communication with the micro single chip microcomputer (10) and is used for displaying the data of the elastic pressure of the spring (33) in real time;
the local alarm (11) is connected with the micro singlechip (10);
when the detected elastic pressure of the spring (33) exceeds a preset threshold value, the micro single chip microcomputer (10) outputs a control signal to the local alarm (11), so that the local alarm (11) is controlled to perform sound and light alarm.
9. The brush (32) wear warning system of claim 7,
the display terminal (12) is a PDA, a mobile phone and a display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800079.9A CN110644158A (en) | 2019-08-28 | 2019-08-28 | Slip ring structure of carpet gun-bone machine, brush loss warning system of slip ring structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910800079.9A CN110644158A (en) | 2019-08-28 | 2019-08-28 | Slip ring structure of carpet gun-bone machine, brush loss warning system of slip ring structure |
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| CN110644158A true CN110644158A (en) | 2020-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910800079.9A Pending CN110644158A (en) | 2019-08-28 | 2019-08-28 | Slip ring structure of carpet gun-bone machine, brush loss warning system of slip ring structure |
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| CN (1) | CN110644158A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036560A (en) * | 2021-02-27 | 2021-06-25 | 北京航天颐和科技有限公司 | Multichannel precision conductive slip ring |
| CN115255751A (en) * | 2022-09-29 | 2022-11-01 | 江苏圣鑫光伏科技有限公司 | Solar aluminum frame welding processing device for photovoltaic module |
| CN116031724A (en) * | 2023-02-08 | 2023-04-28 | 浙江恩碧技创新科技有限公司 | Novel conducting ring friction pair structure |
| CN116256084A (en) * | 2023-03-28 | 2023-06-13 | 湖北清江水电开发有限责任公司 | Rotor temperature measuring device and method of horizontal hydroelectric generating set |
| CN116448275A (en) * | 2023-03-28 | 2023-07-18 | 湖北清江水电开发有限责任公司 | Rotor contact type temperature measuring device and method for horizontal hydroelectric generating set |
| CN116256084B (en) * | 2023-03-28 | 2024-07-05 | 湖北清江水电开发有限责任公司 | Rotor temperature measuring device and method of horizontal hydroelectric generating set |
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| JP3261788B2 (en) * | 1993-02-01 | 2002-03-04 | 株式会社安川電機 | Current collector of welding torch for robot |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113036560A (en) * | 2021-02-27 | 2021-06-25 | 北京航天颐和科技有限公司 | Multichannel precision conductive slip ring |
| CN115255751A (en) * | 2022-09-29 | 2022-11-01 | 江苏圣鑫光伏科技有限公司 | Solar aluminum frame welding processing device for photovoltaic module |
| CN116031724A (en) * | 2023-02-08 | 2023-04-28 | 浙江恩碧技创新科技有限公司 | Novel conducting ring friction pair structure |
| CN116256084A (en) * | 2023-03-28 | 2023-06-13 | 湖北清江水电开发有限责任公司 | Rotor temperature measuring device and method of horizontal hydroelectric generating set |
| CN116448275A (en) * | 2023-03-28 | 2023-07-18 | 湖北清江水电开发有限责任公司 | Rotor contact type temperature measuring device and method for horizontal hydroelectric generating set |
| CN116256084B (en) * | 2023-03-28 | 2024-07-05 | 湖北清江水电开发有限责任公司 | Rotor temperature measuring device and method of horizontal hydroelectric generating set |
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