CN210629225U - Novel rotor lead penetrating shaft structure suitable for pumped storage unit - Google Patents
Novel rotor lead penetrating shaft structure suitable for pumped storage unit Download PDFInfo
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- CN210629225U CN210629225U CN201922168628.3U CN201922168628U CN210629225U CN 210629225 U CN210629225 U CN 210629225U CN 201922168628 U CN201922168628 U CN 201922168628U CN 210629225 U CN210629225 U CN 210629225U
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- copper bar
- bar lead
- gumming
- lead
- lead wire
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Abstract
The utility model discloses a novel rotor lead wire wears axle construction suitable for pumped storage unit, by two copper bar lead wires, the insulation board, insulating supporting shoe, gumming polyester felt, gumming median, the bolt, nut and diplopore locking gasket are constituteed, fill up the insulation board between two copper bar lead wires, half lap winding gumming median in the outside, use gumming polyester felt between copper bar lead wire and the shaft hole is filled up tightly, copper bar lead wire bending department uses insulating supporting shoe with the clearance of axle inner wall to fill up tightly, half lap winding gumming median in the insulation block and the copper bar lead wire outside, the copper bar lead wire passes through the bolt, nut and diplopore locking gasket and all the other rotor lead connections. The utility model discloses change conventional bar copper into ordinary copper bar, make exciting current pass through the copper bar contact surface conduction, can guarantee the virtual phenomenon of even of disappearance. And a glue-dipped polyester felt is filled in the shaft hole through which the lead wire passes, and an insulation supporting block is added by the inner wall of the shaft, so that the rotor lead wire can bear the centrifugal force when the unit runs.
Description
The technical field is as follows:
the utility model relates to a pumped storage field especially relates to a novel rotor lead wire wear axle structure suitable for pumped storage unit.
Background art:
due to the structural characteristics of the pumped storage unit, the shaft penetrating part of the rotor lead generally adopts a copper bar, and the other parts are flat copper bars. The copper bar end is processed with the screw thread, presss from both sides the tight fixing of flat copper bar on the copper bar through two copper nuts. The exciting current is conducted to the copper nut through the combined threads of the copper bar and the copper nut and then conducted to the flat copper bar through the clamping end face of the copper bar and the copper nut. As the quality of the contact between the thread pairs is difficult to control, there may be a virtual joint between the copper bar and the threads of the copper nut. Because the copper material is soft, the copper nut and the copper bar may loosen during the operation of the unit. When the exciting current is conducted through the thread pair between the copper bar and the copper nut, the local electric density of the thread pair is too high, and overheating can occur. The virtual connection caused by the loosened thread pair may cause arcing discharge, thereby burning the connection conductive part. In the actual operation process, due to various factors such as design, manufacture, installation and the like, the rotor lead wire of the structure has an ablation phenomenon. In order to ensure the reliable connection of the nut and the lead contact surface and avoid the problems of over-high electric density or sparking caused by poor contact, the shaft penetrating part in the rotor lead assembly is improved and optimized.
The invention content is as follows:
the utility model aims at disclosing a novel rotor lead wire wear axle structure suitable for pumped storage unit, it has characteristics such as simple structure, safe and reliable, be convenient for implement. The technical scheme is as follows: comprises a first copper bar lead, a second copper bar lead, a first insulating plate, an insulating supporting block and a second insulating plate, the structure comprises a gumming polyester felt, a gumming insulating tape, a bolt, a nut and a double-hole locking gasket, wherein a first insulating pad plate and a second insulating pad plate are padded between a first copper bar lead and a second copper bar lead, gaps between the first copper bar lead and the shaft hole and between the second copper bar lead and the shaft hole are filled with the gumming polyester felt, the outer side of the gumming polyester felt is circumferentially and semi-overlapped with the gumming insulating tape, so that the first copper bar lead and the second copper bar lead are integrated, a bending part of the first copper bar lead and the gap between the inner wall of the shaft are tightly plugged by using an insulating supporting block, the first copper bar lead and the outer side of the second copper bar lead are circumferentially and semi-overlapped with the gumming insulating tape, the first copper bar lead and the second copper bar lead are integrated, and the first copper bar lead and the second copper bar lead.
The first copper bar lead and the second copper bar lead are L-shaped soft copper bars.
The technical effects are as follows:
due to the structural characteristics of the pumped storage unit, the shaft penetrating part of the rotor lead generally adopts a copper bar, and the two ends of the rotor lead are tightly fastened by copper nuts, so that local virtual connection can be caused. The utility model discloses change into ordinary copper bar to wearing axle screw rod and nut, connection between the copper bar adopts ordinary bolt and locking gasket, reduces not hard up probably, makes exciting current pass through the contact surface conduction between the copper bar like this, and not through the screw thread, can guarantee the virtual phenomenon of linking together not appearing, and the plane overlap joint reduces the electricity and closely. Because of the characteristic requirement of high rotational speed, fill gumming dacron felt in the shaft hole of threading the lead wire and make the rotor lead wire atress better, lean on modes such as the axle inner wall increases insulating supporting shoe, guarantee the safe and reliable fixed of rotor lead wire when the unit moves. Therefore, the problem of virtual connection ignition of the shaft-penetrating lead of the high-rotation-speed pumped storage unit is solved. The utility model discloses the structure has advantages such as simple structure, safe and reliable, be convenient for implement.
Description of the drawings:
fig. 1 shows a novel rotor lead through-shaft structure of a pumped storage unit.
The specific implementation mode is as follows:
as shown in figure 1, the utility model relates to a novel rotor lead threading shaft structure of a water-pumping energy storage unit, which comprises a first copper bar lead 1, a second copper bar lead 2, a first insulating plate 3, an insulating block 4, a second insulating plate 5, a gumming polyester felt 6, a gumming insulating tape 7, a bolt 8, a nut 9 and a double-hole stop gasket 10, wherein the first insulating plate 3 and the second insulating plate 5 are arranged between the first copper bar lead 1 and the second copper bar lead 2, gaps between the first copper bar lead 1 and the second copper bar lead 2 and a shaft hole are plugged by the gumming polyester felt 6, the outer side of the gumming polyester felt 6 is circumferentially and semi-lap-wound with the gumming insulating tape 7, so that the first copper bar lead 1 and the second copper bar lead 2 become a whole, a gap between the bending part of the first copper bar lead 1 and the inner wall of the shaft is plugged by the insulating supporting block 4, the insulating block 4 and the outer sides of the first copper bar lead 1 and the second copper bar lead 2 are circumferentially and semi-, the first copper bar lead 1 and the first copper bar lead 2 are connected with the rest rotor leads through bolts 8, nuts 9 and double-hole stop gaskets 10.
The first copper bar lead 1 and the first copper bar lead 2 are L-shaped soft copper bars.
The first insulating plate 3, the insulating block 4, the second insulating plate 5, the glue dipping polyester felt 6 and the glue dipping insulating tape 7 all play a role in supporting and insulating between a copper bar lead and a shaft, and the bolt 8, the nut 9 and the double-hole stop gasket 10 play a role in connecting a rotor lead in a closing mode.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the claims and their equivalents.
Claims (2)
1. The utility model provides a novel rotor lead wire wears axle construction suitable for pumped storage unit, characterized by: by first copper bar lead (1), second copper bar lead (2), first insulation board (3), insulating supporting shoe (4), second insulation board (5), gumming polyester felt (6), gumming median (7), bolt (8), nut (9) and diplopore locking gasket (10) are constituteed, fill up first insulation board (3) and second insulation board (5) between first copper bar lead (1) and second copper bar lead (2), the clearance between first copper bar lead (1) and second copper bar lead (2) and the shaft hole uses gumming polyester felt (6) to fill up, the outside circumference of polyester felt (6) is half-lap around gumming median (7), make first copper bar lead (1) and second copper bar lead (2) become a whole, the clearance between first copper bar lead (1) buckling position and the axle inner wall uses insulating supporting shoe (4) to fill up tightly, insulating supporting shoe (4) and first copper bar lead (1) and second copper bar lead (2) outside circumference are half-lap around gumming median (7), make first copper bar lead (1) and second copper bar lead (2) are around a whole, first copper bar lead (1) are half-lap And the first copper bar lead (1) and the second copper bar lead (2) are connected with the rest rotor leads through bolts (8), nuts (9) and double-hole stop gaskets (10).
2. The novel rotor lead through shaft structure suitable for the pumped storage unit as claimed in claim 1, wherein: the first copper bar lead (1) and the second copper bar lead (2) are L-shaped soft copper bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168628.3U CN210629225U (en) | 2019-12-06 | 2019-12-06 | Novel rotor lead penetrating shaft structure suitable for pumped storage unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922168628.3U CN210629225U (en) | 2019-12-06 | 2019-12-06 | Novel rotor lead penetrating shaft structure suitable for pumped storage unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210629225U true CN210629225U (en) | 2020-05-26 |
Family
ID=70761921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922168628.3U Active CN210629225U (en) | 2019-12-06 | 2019-12-06 | Novel rotor lead penetrating shaft structure suitable for pumped storage unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210629225U (en) |
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2019
- 2019-12-06 CN CN201922168628.3U patent/CN210629225U/en active Active
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