CN202325533U

CN202325533U - Fixing structure of shaft seat fixed type double-blade hobbing cutter in four-blade cutter box for shield machine

Info

Publication number: CN202325533U
Application number: CN2011203790780U
Authority: CN
Inventors: 王茂
Original assignee: DUNJIAN HEAVY INDUSTRY MANUFACTURING CO LTD
Current assignee: DUNJIAN HEAVY INDUSTRY MANUFACTURING CO LTD
Priority date: 2011-10-09
Filing date: 2011-10-09
Publication date: 2012-07-11
Anticipated expiration: 2021-10-09

Abstract

The utility model discloses a fixing structure of a shaft seat fixed type double-blade hobbing cutter in a four-blade cutter box for a shield machine. The fixing structure comprises a cutter head bracket and a cutter holder installed in the cutter head bracket; four cavities are arranged inside the cutter holder; diamond-shaped grooves for fixing the double-blade hobbing cutter are formed in the upper inner wall and the lower inner wall of the cutter holder, and the end surfaces of the upper inner wall and the lower inner wall of the cutter holder are provided with openings and communicated with the grooves; and after horizontally rotating for 45 degrees, a square shaft seat of the double-blade hobbing cutter can be placed on the inner walls of the grooves and are mutually matched and positioned with the two side surfaces of the inner walls of the grooves. The utility model has the benefits that the fixing structure is simple in installation and easy in disassembly; meanwhile, the opening degree of the cutter holder is reduced, the rigidity of the cutter holder is increased, and the rigidity of the hobbing cutter is ensured; and the fixing structure can also be interchangeable with an advance cutter box in the same cutter holder, and the optimization of the cutter head design is improved.

Description

The fixed structure of the fixed twolip hobboing cutter of shield machine axle bed in four angle of throat boxes

Technical field

The utility model relates to a kind of shield machine, relates in particular to the fixed structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed in four angle of throat boxes.

Background technology

Shield machine is mainly used in the constructing tunnel, and the operating mode of shield machine construction is generally comparatively abominable, and the wearing and tearing of central cutter are inevitable; Therefore, need often to change cutter in the work progress, but because the restriction of shield machine working environment and operating principle; Cause having bigger danger, because the structure of hobboing cutter and the restriction of position make that the replacing hobboing cutter is all very difficult before and after cutterhead at cutter head of shield machine precedence centre replacing cutter; Simultaneously, because operating mode is changeable, in the shield machine tunneling process; Sometimes need hobboing cutter be replaced with cutter in advance; So changing cutter is exactly a very thing of difficulty, therefore needs a kind of shield machine roller cutter fixed structure that can make center twolip hobboing cutter that firm easy accessibility again is installed, and not only will guarantee the rigidity of hobboing cutter tool rest simultaneously; Also to guarantee in same tool rest and the general use of cutter cutter box in advance, increase the optimization property of cutterhead design.

The utility model content

The purpose of the utility model is to provide the fixed structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed in four angle of throat boxes; Dismounting is installed simply, is easy to this kind structure; Reduce the opening degree of tool rest simultaneously, increased the rigidity of tool rest, guaranteed the rigidity of hobboing cutter; Can also be in same tool rest and the general use of cutter cutter box in advance, increased the optimization property of cutterhead design.

The purpose of the utility model is to realize through following technical scheme:

The fixed structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed in four angle of throat boxes; Comprise cutterhead support and the tool rest that is installed in the cutterhead support; There are four cavitys said tool rest inside, and said tool rest up and down inwall has the fixedly used rhombus groove of twolip hobboing cutter, and about the tool rest inwall end face be provided with opening and with groove UNICOM; Can be placed on the groove inwall after the square axle bed of said twolip hobboing cutter horizontally rotates 45 °, and with the location that cooperatively interacts, two sides of groove inwall; Have fixing hole on the tool rest, place screwed cylinder in the said fixing hole, have unthreaded hole on the said tool rest inwall, and unthreaded hole passes fixing hole; Another side of square axle bed contacts with a side of wedge; Said wedge is up-narrow and down-wide block structure; And be fixed by bolts on the threaded cylinder in the fixing hole that unthreaded hole passed on the tool rest, square axle bed is pressed abd fixed in the tool rest.

The beneficial effect of the utility model is: the fixed structure of the fixed twolip hobboing cutter of axle bed in four angle of throat boxes is owing to be employed in its tool rest inwall both ends open up and down; Make shield machine install and to adopt back of the body formula tool changing mode (hobboing cutter is changed in the back at the shield machine dish) when perhaps hobboing cutter is changed in construction; And the fixed twolip hobboing cutter of a pair of axle bed of packing into simultaneously, so just reduced the risk factor of changing hobboing cutter; Owing to adopt wedge and bolton, can make square axle bed fixing more firm; Owing to use threaded cylinder, when changing cutter, can change together with bolt, be convenient to install; Because the square axle bed at the fixed twolip hobboing cutter of axle bed two ends can be placed in the rhombus groove left or after 45 ° of right rotations; And can be fixed on the groove inwall through wedge; Such structure had both reduced the opening degree of tool rest, had increased the rigidity of tool rest again, had also guaranteed the rigidity of hobboing cutter; And the general use of cutter cutter box of can also and going ahead of the rest in same tool rest has simultaneously increased the optimization property that cutterhead designs.

Description of drawings

According to accompanying drawing and embodiment the utility model is done further explain below.

Fig. 1 is the structural representation of the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model;

Fig. 2 is the structural representation figure of four angle of throat boxes of the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model;

Fig. 3 is that the A-A shown in Fig. 2 is to sectional view;

The sketch map that Fig. 4 installs in four angle of throat boxes for the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model;

Fig. 5 is the structural representation that the square axle bed rotation of the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model is installed;

Fig. 6 is the mounting structure sketch map of the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model;

Fig. 7 is that the fixed hobboing cutter of the said shield machine axle bed of the utility model is at other direction mounting structure sketch map;

Fig. 8 be among Fig. 1 A-A to view;

Fig. 9 be among Fig. 1 B-B to view;

Figure 10 is the sectional drawing of C-C among Fig. 1.

Among the figure:

1, cutterhead support; 2, tool rest; 3, twolip hobboing cutter; 4, square axle bed; 5, fixing hole; 6, unthreaded hole; 7, opening; 8, groove; 9, threaded cylinder; 10, bolt; 11, wedge; 12, cavity A1; 13, cavity A2; 14, cavity A3; 15, cavity A4.

The specific embodiment

Shown in Fig. 1 to 5; In present embodiment; The fixed structure of the fixed twolip hobboing cutter of shield machine axle bed in four angle of throat boxes; Comprise a pair of twolip hobboing cutter 3, tool rest 2 and cutterhead support 1, tool rest 2 is installed in the cutterhead support 1, and it is cavity A1, cavity A2, cavity A3, cavity A4 (12,13,14,15) that there are four cavitys tool rest 2 inside; The upper and lower inwall of tool rest 2 has the used rhombus groove 8 of fixing twolip hobboing cutter 3, and is provided with opening 7 at the upper and lower inwall end face of tool rest 2 and links with groove 8; On tool rest 2, have fixing hole 5, on tool rest 2 inwalls, have unthreaded hole 6, and unthreaded hole 6 passes fixing hole 5.

When the fixed twolip hobboing cutter of shield machine axle bed is installed; Opening 7 on 2 is pushed into the cavity A1, cavity A2, cavity A3, cavity A4 (12,13,14,15) of tool rest 2 from the below along tool rest with a pair of twolip hobboing cutter 3 that square axle bed 4 is installed; Shown in Fig. 6 to 10; Because the fixed twolip hobboing cutter of axle bed has three square axle beds 4, be respectively the square axle bed 4 and middle square axle bed 4 of both sides, more square axle bed 4 is placed in the groove 8; As shown in Figure 4, with 45 ° of square axle bed 4 rotations; As shown in Figure 5; Square axle bed after rotating 45 ° 4 is continued to push away forward, make it to be close to groove 8 inwalls, the wedge 11 that will be up-narrow and down-wide block structure again moves in the formed zone of side of nearly groove 8 inwalls and square axle bed 4 from the rear portion; Insert threaded cylinder 9 in the fixing hole 5 on tool rest 2; Pass wedge 11 and threaded cylinder 9 with bolt 10, adopt such mode of being connected and fixed to make wedge 11 compress square axle bed 4, square axle bed 4 is closely linked to each other with tool rest 2; Thereby realized the tool changing of back of the body formula, reduced the degree of danger of changing hobboing cutter.

As shown in Figure 7; In present embodiment, formula is installed hobboing cutter before can also adopting, and the opening 7 on 2 is pushed into the cavity A1, cavity A2, cavity A3, cavity A4 (12,13,14,15) of tool rest 2 from the top along tool rest with a pair of fixed twolip hobboing cutter 3 of axle bed that square axle bed 4 is installed; Square axle bed 4 is placed in the groove 8; Make it to be close to groove 8 inwalls, the wedge 11 that will be up-narrow and down-wide block structure again moves from the rear portion in the formed zone of side of nearly groove 8 inwalls and square axle bed 4, inserts threaded cylinder 9 in the fixing hole 5 on tool rest 2; Pass wedge 11 and threaded cylinder 9 with bolt 10; Adopt such mode of being connected and fixed to make wedge 11 compress square axle bed 4, square axle bed 4 is closely linked to each other with tool rest 2, thereby formula is installed hobboing cutter before realizing.

The fixed structure of the fixed twolip hobboing cutter of the said shield machine axle bed of the utility model in four angle of throat boxes; Simple in structure; Be easy to installation and removal, can adopt back of the body formula tool changing mode and preceding formula dress cutter mode dual mode to install, back of the body formula tool changing mode effectively reduces the degree of danger of changing hobboing cutter; Reduce the opening degree of tool rest simultaneously, increased the rigidity of tool rest, guaranteed the rigidity of the fixed twolip hobboing cutter of axle bed; Can also be general with the cutter cutter box of going ahead of the rest in same tool rest, therefore, the cutterhead design has obtained optimization.

Claims

1. the fixed structure of the fixed twolip hobboing cutter of shield machine axle bed in four angle of throat boxes; Comprise cutterhead support and the tool rest that is installed in the cutterhead support; It is characterized in that: there are four cavitys said tool rest inside; Said tool rest inwall up and down has the fixedly used rhombus groove of twolip hobboing cutter; And tool rest up and down the inwall end face be provided with opening and with groove UNICOM, can be placed on the groove inwall after the square axle bed of said twolip hobboing cutter horizontally rotates 45 °, and with the location that cooperatively interacts, two sides of groove inwall; Have fixing hole on the tool rest, place screwed cylinder in the said fixing hole, have unthreaded hole on the said tool rest inwall, and unthreaded hole passes fixing hole; Another side of square axle bed contacts with a side of wedge; Said wedge is up-narrow and down-wide block structure; And be fixed by bolts on the threaded cylinder in the fixing hole that unthreaded hole passed on the tool rest, square axle bed is pressed abd fixed in the tool rest.