CN205117349U

CN205117349U - Hobbing cutter for tunnel boring machine

Info

Publication number: CN205117349U
Application number: CN201520857712.5U
Authority: CN
Inventors: 张凌; 于永生; 单琳琳; 程晖
Original assignee: Equipment Ltd Wei Erte Tunnel Jilin Province
Current assignee: Lingyuan Technology Co ltd
Priority date: 2015-10-30
Filing date: 2015-10-30
Publication date: 2016-03-30
Anticipated expiration: 2025-10-30

Abstract

The utility model relates to a hobbing cutter for tunnel boring machine belongs to road, hydraulic engineering technique technical field, has solved that prior art does in assembling process heavily, assembly period long, just need the workman to possess abundant working experience, and work efficiency hangs down, the grinding in -process still often because workman's misoperation arouses that the grinding is excessive, leads to the spacer to be scrapped, wastes the technical problem of material, the utility model discloses a spacer, bearing I and bearing II, the both ends of spacer are the echelonment, and the both ends of spacer are connected with II cooperations on bearing I and the bearing respectively, need not relapse dismouting and grinding in assembling process, just can satisfy the assembly requirements of ideal, not exist because of the grinding excessively leads to the spacer to be scrapped, cause the extravagant problem of material, reduce manufacturing cost, simplify assembly process greatly, reduced the assembly degree of difficulty, further improved work efficiency, reduced the production cycle of product.

Description

A kind of tunnel machine hobboing cutter

Technical field

The utility model belongs to road, hydraulic engineering technical field, is specifically related to a kind of tunnel machine hobboing cutter.

Background technology

See accompanying drawing 1, the cutter of tunnel machine utilizes cutter hub to coordinate mechanical movement under the state of finishing the work with bearing assembly, spacer is installed additional to regulate two bearings at the diastema of cutter hub in order to prevent bearing axial float from needing, need in assembling process to regulate sham by the axial length of grinding spacer, for ensureing precision, repeated disassembled and assembled, grinding adjustment spacer is needed in assembling process, until the diastema of spacer and cutter hub adapts, the work of this assembling mode is heavy, assembly period is long and need workman to possess abundant working experience, inefficiency; Also often because the misoperation of workman causes grinding excessive in grinding process, spacer is caused to be scrapped, waste material.

Utility model content

The purpose of this utility model is to provide a kind of tunnel machine hobboing cutter, and solving prior art, in assembling process, do heavy, assembly period long and need workman to possess abundant working experience, inefficiency; Also often because the misoperation of workman causes grinding excessive in grinding process, spacer is caused to be scrapped, the technical problem of waste material.

A kind of tunnel machine hobboing cutter of the utility model comprises cutter shaft, pair of bearings, cutter hub, cutter ring, a pair floating sealing base, floating seal ring, nut and spacer; Described pair of bearings is bearing I and bearing II, and described a pair floating sealing base is floating sealing base I and floating sealing base II; Bearing I and bearing II are enclosed within cutter shaft respectively, floating sealing base I is between bearing I and upper end cover, floating sealing base I and bearing I are close contact, sealed, sealed between floating sealing base I and cutter hub by O-ring seal between floating sealing base I and upper end cover by floating seal ring; Floating sealing base II is between bearing II and bottom end cover, and floating sealing base II and bearing II are close contact, sealed, sealed between floating sealing base II and cutter hub by O-ring seal between floating sealing base II and bottom end cover by floating seal ring; Bottom end cover carries out axial location by the shaft shoulder of cutter shaft, the shaft shoulder of bottom end cover and cutter shaft is sealed by O-ring seal, bottom end cover and bearing II close contact, upper end cover and bearing I close contact, and upper end cover is by fastening nuts, is sealed between upper end cover and nut by O-ring seal; The two ends of described spacer are stepped, the two ends of spacer respectively with bearing I and bearing II close contact.

Advantageous Effects of the present utility model: spacer two ends of the present utility model are stepped, in assembling process, do not need repeated disassembled and assembled and grinding, just can meet desirable matching requirements, do not exist and cause spacer to be scrapped because grinding is excessive, cause the problem of waste of material, reduce cost of production; Enormously simplify assemble flow, reduce assembly difficulty, further increase operating efficiency, reduce the production cycle of product.

Accompanying drawing explanation

Fig. 1 is the structural representation of spacer in prior art;

Fig. 2 is the structural representation of a kind of tunnel machine hobboing cutter of the utility model;

Fig. 3 is the structural representation of the spacer of a kind of tunnel machine hobboing cutter of the utility model;

Wherein, 1, bearing II, 2, bottom end cover, 3, floating sealing base II, 4, cutter hub, 5, spacer, 6, cutter ring, 7, back-up ring, 8, floating sealing base I, 9, upper end cover, 10, nut, 11, cutter shaft, 12, bearing I.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is further elaborated.

See accompanying drawing 2 and accompanying drawing 3, a kind of tunnel machine hobboing cutter of the utility model comprises cutter shaft 11, pair of bearings, cutter hub 4, cutter ring 6, a pair floating sealing base, nut 10 and spacer 5; Described pair of bearings is bearing I 12 and bearing II 1, and described a pair floating sealing base is floating sealing base I 8 and floating sealing base II 3; Bearing I 12 and bearing II 1 are enclosed within cutter shaft 11 respectively, cutter hub 4 is enclosed within the outer ring of described pair of bearings, cutter ring 6 is enclosed within cutter hub, ring washer 7 is welded on cutter hub 4, floating sealing base I 8 is between bearing I 12 and upper end cover 9, floating sealing base I 8 and bearing I 12 close contact, sealed by floating seal ring between floating sealing base I 8 and upper end cover 9, sealed between floating sealing base I 8 and cutter hub 4 by O-ring seal; Floating sealing base II 3 is between bearing II 1 and bottom end cover 2, and floating sealing base II 3 and bearing II 1 close contact, sealed by floating seal ring between floating sealing base II 3 and bottom end cover 2, sealed between floating sealing base II 2 and cutter hub 4 by O-ring seal; Bottom end cover 2 carries out axial location by the shaft shoulder of cutter shaft 11, bottom end cover 2 is sealed by O-ring seal with the shaft shoulder of cutter shaft 11, bottom end cover 2 and bearing II 1 close contact, upper end cover 9 and bearing I 12 close contact, and upper end cover 9 is by fastening nuts, is sealed between upper end cover 9 and nut 10 by O-ring seal; The two ends of described spacer 5 are stepped, the two ends of spacer 5 respectively with bearing I 12 and bearing II 1 close contact.

Claims

1. a tunnel machine hobboing cutter, is characterized in that, comprises cutter shaft (11), pair of bearings, cutter hub (4), cutter ring (6), a pair floating sealing base, nut (10) and spacer (5); Described pair of bearings is bearing I (12) and bearing II (1), and described a pair floating sealing base is floating sealing base I (8) and floating sealing base II (3); Bearing I (12) and bearing II (1) are enclosed within cutter shaft (11) respectively, cutter hub (4) is enclosed within the outer ring of described pair of bearings, cutter ring (6) is enclosed within cutter hub, ring washer (7) is welded on cutter hub (4), floating sealing base I (8) is between bearing I (12) and upper end cover (9), floating sealing base I (8) and bearing I (12) close contact, sealed by floating seal ring between floating sealing base I (8) and upper end cover (9), sealed by O-ring seal between floating sealing base I (8) and cutter hub (4); Floating sealing base II (3) is between bearing II (1) and bottom end cover (2), floating sealing base II (3) and bearing II (1) close contact, sealed by floating seal ring between floating sealing base II (3) and bottom end cover (2), sealed by O-ring seal between floating sealing base II (3) and cutter hub (4); Bottom end cover (2) carries out axial location by the shaft shoulder of cutter shaft (11), bottom end cover (2) is sealed by O-ring seal with the shaft shoulder of cutter shaft (11), bottom end cover (2) and bearing II (1) close contact, upper end cover (9) and bearing I (12) close contact, and upper end cover (9) is by fastening nuts, sealed by O-ring seal between upper end cover (9) and nut (10);

The two ends of described spacer (5) are stepped, the two ends of spacer (5) respectively with bearing I (12) and bearing II (1) close contact.