CN202250093U

CN202250093U - Installing structure of shield machine shaft seat fixed type double-edged hob

Info

Publication number: CN202250093U
Application number: CN 201120340761
Authority: CN
Inventors: 王茂
Original assignee: DUNJIAN HEAVY INDUSTRY MANUFACTURING CO LTD
Current assignee: DUNJIAN HEAVY INDUSTRY MANUFACTURING CO LTD
Priority date: 2011-09-13
Filing date: 2011-09-13
Publication date: 2012-05-30
Anticipated expiration: 2021-09-13

Abstract

An installing structure of a shield machine shaft seat fixed type double-edged hob comprises a cutting disc support, a hob seat and the double-edged hob, wherein the hob seat and the double-edged hob are installed on the cutting disc support. The inside of the hob seat is a cavity, diamond grooves for fixing the hob are arranged on the upper inner wall and the lower inner wall, the inner wall end faces are provided with openings communicated with the grooves, and square shaft seats at two ends of the hob are rotated at 45 degrees and then fixed on the inner walls of the grooves through wedge-shaped blocks. An unthreaded hole is arranged on the inner wall of the hob seat to penetrate through a fixing hole, and a cylinder with threads is inserted into the fixing hole. The wedge-shaped blocks adopt structures with narrow tops and wide bottoms and are tightened on the hob seat through a bolt of the cylinder penetrating through the hob seat fixing hole. The installing structure can adopt a back type hob replacing mode and a front type hob installing mode, and is simple and easy to install and dismount. Simultaneously, opening degree of the hob seat is reduced, rigidity of the hob seat is increased, and the rigidity of the hob is ensured. Furthermore, the double-edged hob can be used universally with an advancing cutter box in the same hob seat, and optimization of the cutting disc design is improved.

Description

The mounting structure of the fixed twolip hobboing cutter of shield machine axle bed

Technical field

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

Background technology

Shield machine is mainly used in the constructing tunnel; The operating mode of shield-tunneling construction is generally comparatively abominable; The wearing and tearing of central cutter are inevitable; Often need to change cutter in the work progress,, cause changing cutter and have bigger risk in the cutter head of shield machine front center still owing to the restriction of shield machine working environment and operating principle; Again 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; Shield machine operation operating mode is changeable, in tunneling process, need hobboing cutter be replaced with in advance cutter sometimes, and operating also has bigger difficulty, how to realize that therefore center twolip hobboing cutter not only installed the difficult point that firm but also easy accessibility just becomes shield-tunneling construction.

The utility model content

The utility model provides the mounting structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed, has solved cutter head of shield machine core twolip hobboing cutter tool changing difficulty, the problem of dismounting inconvenience.

For realizing above-mentioned purpose, adopt following technical scheme:

The mounting structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed; Comprise cutterhead support and tool rest and twolip hobboing cutter mounted thereto; Said tool rest inside is cavity; Its up and down inwall have the fixedly rhombus groove of twolip hobboing cutter, and the inwall end face is provided with the opening with groove UNICOM, is fixed on the groove inwall through wedge after said twolip hobboing cutter two ends and middle square axle bed rotate 45 ° again through the insertion tool rest.

As a preferred version, have fixing hole on the said tool rest, on the tool rest inwall, also have the unthreaded hole that passes fixing hole, screwed cylinder inserts fixing hole.

As further preferred version, said wedge adopts up-narrow and down-wide rectangular configuration, and through passing cylindrical bolton in the tool rest fixing hole on tool rest.

The utility model can adopt back of the body formula tool changing mode through inwall both ends open about tool rest when making shield machine construction; Adopt wedge and bolton, make axle bed fixing more firm; Use threaded small column, when changing cutter, can change together, be convenient to dismounting with bolt; The square axle bed at hobboing cutter two ends and middle part is fixed on the groove inwall through wedge after tool rest rotates 45 ° again through inserting, and has reduced the opening degree of tool rest, has increased the rigidity of tool rest, has guaranteed the rigidity of hobboing cutter simultaneously again; Simultaneously can also be in same tool rest and the general use of cutter cutter box in advance, increased the optimization property of cutterhead design.

Description of drawings

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

Fig. 1 is the utility model mounting structure exploded view;

Fig. 2 is that the A-A shown in Fig. 1 is to sectional view;

Fig. 3 is the structural representation that hobboing cutter is installed from the bottom;

The structural representation that Fig. 4 installs for the rotation of hobboing cutter axle bed;

Fig. 5 is the sectional drawing at the A-A place after the assembling shown in Figure 1;

The structural representation that Fig. 6 packs into and rotates at other direction (cutterhead is anterior) for hobboing cutter;

Fig. 7 be among Fig. 1 A to view;

Fig. 8 be among Fig. 1 B to view;

Fig. 9 is the sectional drawing at C-C place 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, cylinder; 10, bolt; 11, wedge.

The specific embodiment

Shown in Fig. 1 to 9, provided a specific embodiment of the utility model:

Fig. 1 installs exploded view for the utility model, comprises cutterhead support 1, tool rest 2, twolip hobboing cutter 3, square axle bed 4, Fig. 2 be among Fig. 1 cutterhead support 1 and tool rest 2 at A-A to sectional view; Tool rest 2 inside are cavity; Its up and down inwall have the fixedly groove 8 of the rhombus of twolip hobboing cutter 3 usefulness, tool rest about in the of 2 the inwall end face be provided with the opening 7 with groove 8 UNICOMs, on tool rest 2, also have fixing hole 5; Have unthreaded hole 6 on tool rest 2 inwalls, and unthreaded hole 6 passes fixing hole 5.

During installation, as shown in Figure 3, the opening 7 on 2 is pushed into the cavity of tool rest 2 the twolip hobboing cutter 3 that two ends and middle part are equipped with square axle bed 4 from the below along tool rest, and square axle bed 4 is placed in the groove 8, realizes the tool changing of back of the body formula; As shown in Figure 4, square axle bed 4 is rotated 45 ° in the direction of arrows, as shown in Figure 5; Postrotational square shaft bearing 4 is continued to push away forward; Make it to be close to, in the middle of the rear portion is fixed on wedge 11 groove 8 inwalls and square axle bed 4 sides, in fixing hole 5, insert threaded cylinder 9 with groove 8 inwalls; Pass the wedge 11 and threaded cylinder 9 of up-narrow and down-wide rectangular configuration with bolt 10, wedge 11 is fastening.

As shown in Figure 6, the opening 7 on 2 is pushed into the cavity of tool rest 2 the twolip hobboing cutter 3 that two ends and middle part are equipped with square shaft bearing 4 from the top along tool rest, and square shaft bearing 4 is placed in the groove 8, and formula is installed hobboing cutter before realizing.

The mounting structure of the utility model can adopt back of the body formula tool changing mode and preceding formula dress cutter mode, and simple installation and be easy to dismounting has reduced the opening degree of tool rest simultaneously, has increased the rigidity of tool rest, has 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.

Claims

1. the mounting structure of the fixed twolip hobboing cutter of shield machine axle bed; Comprise cutterhead support and tool rest and twolip hobboing cutter mounted thereto; It is characterized in that: said tool rest is inner to be cavity; Its up and down inwall have the fixedly rhombus groove of twolip hobboing cutter, and the inwall end face is provided with the opening with groove UNICOM, said twolip hobboing cutter two ends and middle square axle bed rotate 45 ° and be fixed on the groove inwall through wedge after through the insertion tool rest again.

2. the mounting structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed according to claim 1 is characterized in that: have fixing hole on the said tool rest, on the tool rest inwall, also have the unthreaded hole that passes fixing hole, screwed cylinder inserts fixing hole.

3. the mounting structure of the fixed twolip hobboing cutter of a kind of shield machine axle bed according to claim 1 and 2 is characterized in that: said wedge adopts up-narrow and down-wide rectangular configuration, and through passing cylindrical bolton in the tool rest fixing hole on tool rest.