CN102364140B

CN102364140B - Aerogenerator cable mandrel

Info

Publication number: CN102364140B
Application number: CN2011103378973A
Authority: CN
Inventors: 俞文斌; 钟绍辉; 崔皓; 石永进; 黄熙
Original assignee: Yongji Xinshisu Electric Equipment Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2011-11-01
Filing date: 2011-11-01
Publication date: 2012-12-05
Anticipated expiration: 2031-11-01
Also published as: CN102364140A

Abstract

The invention relates to a cable mandrel, and concretely relates to an aerogenerator cable mandrel. A problem that a control cable is influenced by the rotation of a pivot when the control cable traverses the pivot is solved in the invention. The aerogenerator cable mandrel is characterized in that: the aerogenerator cable mandrel comprises a mandrel; the front end of the mandrel is provided with a sealed bearing; a tapered expansion sleeve is arranged between the inner ring of the sealed bearing and the outer surface of the mandrel, the tapered expansion sleeve comprises an inner collar and an outer collar, the inner collar is sleeved on the outer surface of the mandrel, the outer collar is sleeved between the outer surface of the inner collar and the inner ring of the sealed bearing; a small nut, a large nut and a spring retaining ring for a shaft are respectively sleeved on the front end of the mandrel; and the rear end of the mandrel is provided with a sliding seat, and a clearance fit is arranged between the sliding seat and the outer surface of the rear end of the mandrel. The aerogenerator cable mandrel of the invention, which allows the problem that the control cable is influenced by the rotation of the pivot when the control cable traverses the pivot to be effectively solved, is suitable for the arrangement of the control cable in a high power permanent magnet semi-direct driven synchronous generator set.

Description

Wind-driven generator cable mandrel

Technical field

The present invention relates to the cable mandrel, specifically is a kind of wind-driven generator cable mandrel.

Background technique

In high-power permanent magnet half direct-driving synchronous wind turbine generator unit, because the requirement of structure, the actuating cable of system need be passed between the rotating shaft of gear-box, coupling and generator.In unit when work,, rotating shaft is rotated with gearbox output shaft and coupling, and actuating cable does not allow rotation, preventing to twist bad actuating cable, thereby the Security of actuating cable is impacted.Therefore,, be necessary to invent a kind of brand-new mandrel structure, when passing rotating shaft, receive the problem that rotating shaft is rotated to be influenced to solve actuating cable for guaranteeing to be independent of each other between rotating shaft and the actuating cable.

Summary of the invention

The present invention receives the problem that rotating shaft is rotated to be influenced in order to solve actuating cable when passing rotating shaft, a kind of wind-driven generator cable mandrel is provided.

The present invention adopts following technological scheme to realize: wind-driven generator cable mandrel comprises mandrel; The mandrel front end is equipped with stuffing box bearing; Be provided with the taper expansion set between stuffing box bearing inner ring and the mandrel outer side surface, said taper expansion set comprises inner sleeve and outer sleeve, and inner sleeve is socketed on the mandrel outer side surface, and outer sleeve is socketed between inner sleeve outer side surface and the stuffing box bearing inner ring; Stuffing box bearing is socketed with bearing support on the outer ring, and bearing support outside end face is equipped with annular gland; The mandrel front end is socketed with primary nut, big nut and axle respectively and uses check ring; The inner side end of primary nut contacts with the outside end face of taper expansion set, and the inner side end of big nut contacts with the outside end face of primary nut, and axle contacts with the outside end face of big nut with the inner side end of check ring; The outer side surface of primary nut is penetrated with first Cock screw; The outer side surface of big nut is penetrated with second Cock screw; The outside end face of big nut is penetrated with the 3rd Cock screw, and the inner side end of the 3rd Cock screw contacts with the outside end face of primary nut, and the outside end face of the 3rd Cock screw contacts with the inner side end of axle with check ring; Core back-end is equipped with sliding seat, is provided with Spielpassung between sliding seat and the core back-end's outer side surface; Core back-end's outer side surface has keyway, and keyway is between sliding seat and mandrel, and keyway is embedded with and the fixing key of sliding seat inner side surface; The sliding seat outer side surface is socketed with support cover.

During work, actuating cable is supported in the mandrel, vertically mandrel is passed rotating shaft, and the stuffing box bearing outer ring and the rotating shaft of mandrel front end are fixed, and rotate synchronously with rotating shaft.Support cover is fastened on the electric motor end cap.During the rotating shaft rotation; The key of core back-end is resisted the running torque of rotating shaft; The mandrel front end has guaranteed that the stuffing box bearing inner ring of mandrel front end does not rotate with the stuffing box bearing outer ring, and then has guaranteed that mandrel does not rotate with rotating shaft yet through taper expansion set and stuffing box bearing inner ring tensioner.Based on said process, realized being independent of each other between mandrel and the rotating shaft, promptly guaranteed to be independent of each other between actuating cable and the rotating shaft, thereby guaranteed the Security of actuating cable.In said process, through the primary nut of screwing, can be with stuffing box bearing inner ring tensioner.Through tightening first Cock screw, can primary nut be locked.Through the big nut of screwing, tighten the 3rd Cock screw, can prevent further that primary nut from endwisely slipping.Through tightening second Cock screw, can big nut be locked, prevent that big nut is loosening.Axle can prevent further that with check ring big nut from endwisely slipping.Spielpassung between sliding seat and the mandrel can effectively prevent the thermal stretching of mandrel.In sum, wind-driven generator cable mandrel of the present invention efficiently solves actuating cable and when passing rotating shaft, receives the problem that rotating shaft is rotated to be influenced based on brand-new structure.

Further, the mandrel front end is equipped with temperature transducer.Temperature transducer can the on-line monitoring stuffing box bearing running temperature, guarantee the normal operation of unit.

The present invention is based on brand new, efficiently solve actuating cable and when passing rotating shaft, receive the problem that rotating shaft is rotated to be influenced, be applicable to the installation of actuating cable in the high-power permanent magnet half direct-driving synchronous wind turbine generator unit.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the partial enlarged drawing at A place among Fig. 1.

Among the figure: 1-mandrel, 2-stuffing box bearing, 3-inner sleeve, 4-outer sleeve, 5-bearing support; The 6-annular gland, the 7-primary nut, the 8-big nut, the 9-axle is used check ring, 10-first Cock screw; 11-second Cock screw, 12-the 3rd Cock screw, 13-sliding seat, 14-key, 15-support cover; The 16-temperature transducer, 17-bolt, 18-rotating shaft, 19-electric motor end cap.

Embodiment

Wind-driven generator cable mandrel comprises mandrel 1; Mandrel 1 front end is equipped with stuffing box bearing 2; Be provided with the taper expansion set between stuffing box bearing 2 inner rings and mandrel 1 outer side surface, said taper expansion set comprises inner sleeve 3 and outer sleeve 4, and inner sleeve 3 is socketed on mandrel 1 outer side surface, and outer sleeve 4 is socketed between inner sleeve 3 outer side surfaces and stuffing box bearing 2 inner rings; Stuffing box bearing is socketed with bearing support 5 on 2 outer rings, and bearing support 5 outside end faces are equipped with annular gland 6; Mandrel 1 front end is socketed with primary nut 7, big nut 8 and axle respectively with check ring 9; The inner side end of primary nut 7 contacts with the outside end face of taper expansion set, and the inner side end of big nut 8 contacts with the outside end face of primary nut 7, and axle contacts with the outside end face of big nut 8 with the inner side end of check ring 9; The outer side surface of primary nut 7 is penetrated with first Cock screw 10; The outer side surface of big nut 8 is penetrated with second Cock screw 11; The inner side end that the outside end face of big nut 8 is penetrated with the 3rd Cock screw 12, the three Cock screws 12 contacts with the outside end face of primary nut 7, and the outside end face of the 3rd Cock screw 12 contacts with the inner side end of axle with check ring 9; Mandrel 1 rear end is equipped with sliding seat 13, is provided with Spielpassung between sliding seat 13 and the mandrel 1 rear end outer side surface; Mandrel 1 rear end outer side surface has keyway, and keyway is between sliding seat 13 and mandrel 1, and keyway is embedded with and the fixing key 14 of sliding seat 13 inner side surfaces; Sliding seat 12 outer side surfaces are socketed with support cover 15;

Mandrel 1 front end is equipped with temperature transducer 16;

During practical implementation, stuffing box bearing 2 adopts single-groove grooved ball stuffing box bearing.Temperature transducer 16 adopts the Pt100 temperature transducer.During work, annular end cap 6, stuffing box bearing 2 outer rings are fixed through bolt 17 and rotating shaft 18.Support cover 15 is fastened on the electric motor end cap 19, and is as shown in Figure 1.

Claims

1. a wind-driven generator cable mandrel is characterized in that: comprise mandrel (1); Mandrel (1) front end is equipped with stuffing box bearing (2); Be provided with the taper expansion set between stuffing box bearing (2) inner ring and mandrel (1) outer side surface; Said taper expansion set comprises inner sleeve (3) and outer sleeve (4); Inner sleeve (3) is socketed on mandrel (1) outer side surface, and outer sleeve (4) is socketed between inner sleeve (3) outer side surface and stuffing box bearing (2) inner ring; Stuffing box bearing (2) is socketed with bearing support (5) on the outer ring, and bearing support (5) outside end face is equipped with annular gland (6); Mandrel (1) front end is socketed with primary nut (7), big nut (8) and axle respectively with check ring (9); The inner side end of primary nut (7) contacts with the outside end face of taper expansion set, and the inner side end of big nut (8) contacts with the outside end face of primary nut (7), and axle contacts with the outside end face of big nut (8) with the inner side end of check ring (9); The outer side surface of primary nut (7) is penetrated with first Cock screw (10); The outer side surface of big nut (8) is penetrated with second Cock screw (11); The outside end face of big nut (8) is penetrated with the 3rd Cock screw (12); The inner side end of the 3rd Cock screw (12) contacts with the outside end face of primary nut (7), and the outside end face of the 3rd Cock screw (12) contacts with the inner side end of axle with check ring (9); Mandrel (1) rear end is equipped with sliding seat (13), is provided with Spielpassung between sliding seat (13) and mandrel (1) the rear end outer side surface; Mandrel (1) rear end outer side surface has keyway, and keyway is positioned between sliding seat (13) and the mandrel (1), and keyway is embedded with and the fixing key (14) of sliding seat (13) inner side surface; Sliding seat (12) outer side surface is socketed with support cover (15).

2. wind-driven generator cable mandrel according to claim 1 is characterized in that: mandrel (1) front end is equipped with temperature transducer (16).