CN221144436U - High-strength triangular shaft hob - Google Patents

Abstract

The utility model belongs to the technical equipment field of hob cutters, and particularly relates to a high-strength triangular shaft hob cutter which comprises a hob cutter body, wherein the hob cutter body comprises a hob cutter shaft, the upper half parts of two ends of the hob cutter shaft are in a trapezoid table shape, the lower half parts of the hob cutter shaft are in a semi-cylindrical shape, a hob barrel which is in a hollow shape is arranged on the outer side of the hob cutter body, a double-edge groove which is convenient for the hob cutter body to place is formed in the hob barrel, a hob rest is arranged below the hob rest, a supporting suspension is arranged below the hob rest in a crossing manner, and a wear detection device is arranged above one side of the hob barrel and penetrates through the hob rest. The utility model has reasonable design, simple structure, convenient processing, stable structure and difficult generation of loose triangle shaft type structure, and adopts the fastener manufactured by the matched integrated processing for installation, thereby avoiding the fastener from being scattered due to loose pins and bolts, effectively ensuring the use effect of the hob structure, improving the use strength and fully meeting the use requirement.

Description

High-strength triangular shaft hob

Technical Field

The utility model belongs to the technical field of hob cutters, and particularly relates to a high-strength triangular shaft hob cutter.

Background

The hob is an excavating tool for crushing hard rock, is arranged on an excavating cutter head of large trenchless construction equipment such as a shield, a TBM, a jacking pipe and the like, and has the functions of rolling face rock and peeling the rock from the face, thereby ensuring the effective proceeding of tunneling work.

At present, for the slurry shield tunneling process, the water pressure of the tunnel face is larger, and the conventional shield hob cannot bear a high water pressure environment, so that people also set up the high water pressure hob according to actual use requirements to meet different use requirements under different working conditions, and the working process is improved; however, in the prior art, the conventional high water pressure hob adopts an end cover structure, and the defects of the end cover structure are as follows: fastening bolt is extremely easy not hard up, in full section hard rock, the cutter abnormal failure is higher, disposable disability rate is high, simultaneously, for the fastener of end cover formula high water pressure hobbing cutter installation, it is split processing mostly, each part passes through pin and screw fastening, very easily become scattered frame, when influencing hobbing cutter stability, use intensity is not enough, seriously influence its result of use, the working process is restricted, for this reason, we provide a stable in structure, be difficult for producing not hard up triangle axle type structure, and install with the fastener that the integral type processing of looks adaptation was made, avoid causing the fastener to scatter the frame because of pin, bolt looseness, effectively ensure the result of use of hobbing cutter structure, improve the intensity of use, fully satisfy the high strength triangle axle type hobbing cutter of user demand.

Disclosure of utility model

Aiming at the technical problems in the hob structure installation process, the utility model provides the high-strength triangular shaft hob which has the advantages of reasonable design, simple structure, convenient processing, stable structure and difficult looseness, is installed by adopting a fastener manufactured by adopting an adaptive integrated processing mode, avoids the fastener from being scattered due to looseness of pins and bolts, effectively ensures the use effect of the hob structure, improves the use strength and fully meets the use requirement.

In order to achieve the above purpose, the technical scheme adopted by the utility model is that the high-strength triangular shaft hob comprises a hob body, the hob body comprises a hob shaft, a middle frame is arranged on the periphery of the geometric center of the hob shaft, tapered roller bearings are arranged on two sides of the middle frame, a hob body is arranged on the periphery of the tapered roller bearings, a hob ring is arranged on the periphery of the hob body, the upper half parts of two ends of the hob shaft are in a trapezoid table-shaped design, the lower half parts of the hob body are in a semi-cylindrical design, a hob barrel which is in a hollow design is arranged on the outer side of the hob body, a double-edge groove which is convenient for placing the hob body is formed in the hob barrel, a hob rest is arranged below the hob rest, a supporting suspension is arranged below the hob rest in a crossing mode, a wear detection device is arranged above one side of the hob barrel, and the hob rest is arranged through the hob rest.

Preferably, a limit groove is formed below the inner side of the cutter barrel, and semicircular grooves are formed in two sides of the cutter frame.

Preferably, a limiting block in a convex shape is arranged on the inner side of the cutter barrel positioned at the geometric center of the double-edge groove, an adapting block in a convex shape is also arranged on the inner side of the cutter frame corresponding to the limiting block, and mounting holes are formed in the limiting block and the adapting block.

Preferably, a plurality of connecting screws are uniformly distributed on the periphery above the cutter cylinder and penetrate through the cutter rest, and connecting nuts are arranged at the lower ends of the connecting screws.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. According to the high-strength triangular shaft type hob, through the integrally machined and designed hob frame, the loosening or deformation of a fastener of the hob frame fastened together by using pins or bolts is avoided, so that the situation of falling apart is avoided, the installation working process is improved to a certain extent, and the use requirement is met; the cutter shaft of the triangular shaft type is used for being matched with the cutter barrel and the cutter frame, so that the overall stability of the hob body is ensured, and the hob body is prevented from loosening; the device is reasonable in design, simple in structure, convenient to process, stable in structure and difficult to produce loose triangle shaft type structure to adopt the fastener that the integral type processing of looks adaptation was made to install, avoid leading to the fastener to scatter the frame because of pin, bolt are not hard up, effectively ensure hob structure's result of use, improve intensity of use, fully satisfy the user demand.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

FIG. 1 is a schematic view of a high strength triangular shaft hob;

FIG. 2 is an elevation view of the internal structure of a high strength delta-shaft hob;

FIG. 3 is an exploded view of a part of the structure of a high strength triangular shaft hob;

FIG. 4 is a resulting bottom view of the cartridge;

In the above figures, 1, a hob body; 11. a cutter shaft; 12. a middle frame; 13. tapered roller bearings; 14. a cutter body; 15. a knife ring; 2. a cutter cylinder; 21. double-edged grooves; 22. a limit groove; 23. a limiting block; 3. a tool holder; 31. supporting a suspension; 32. a semicircular groove; 33. an adaptation block; 4. a wear detection device; 5. a mounting hole; 6. a connecting screw; 61. and (5) connecting a nut.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

1-4, A high-strength triangular shaft hob comprises a hob body 1, wherein the hob body 1 comprises a hob shaft 2, a middle frame 12 is arranged on the periphery of the geometric center of the hob shaft 2, tapered roller bearings 13 are arranged on two sides of the middle frame 12, a cutter body 14 is arranged on the periphery of the tapered roller bearings 13, and a cutter ring 15 is arranged on the periphery of the cutter body 14, wherein the establishment of equipment parts of the devices is an existing mature technical means, and detailed description is omitted; in order to fully ensure that the hob has good use performance, the upper half parts of the two ends of the hob shaft 2 are designed in a trapezoid table shape, and the lower half parts of the hob shaft 2 are designed in a semi-cylindrical shape, so that the two ends of the hob shaft 2 are arranged in a triangle shaft shape, the stability of the hob shaft in the installation and use processes is ensured, the hob shaft is not easy to loosen, and the use requirements are fully met; the outside of the hob body 1 is provided with a cutter barrel 2 which is designed in a hollow shape, a double-edge groove 21 which is convenient for placing the hob body 1 is arranged in the cutter barrel 2 so as to be matched with the hob body 1, thereby avoiding the motion interference of the hob body 1, guaranteeing the use function, and the establishment of the cutter barrel 2 provides convenience conditions for tunneling equipment installed on the hob body 1 and ensures the connection stability; further, the below of cutter package 2 is provided with knife rest 3, and it cooperates with cutter package 2 and guarantees the stability that hob body 1 set up, prevents that it from taking place not hard up, and the below of knife rest 3 straddles to be provided with support suspension 31, and one side top of cutter package 2 is provided with wear detection device 4, and runs through knife rest 3 and set up, and wherein, support suspension 31 on the one hand plays auxiliary bearing effect to hob body 1's below, and on the other hand can also provide convenient mounted position for hob's rotation check out test set, provides convenient condition for implementing the running condition that detects the work piece, further stated: the abrasion detection device 4 is an existing mature and conventional technical means and is used for detecting abrasion conditions in the running process of the hob, providing convenience conditions for people to know the state of the hob and meeting the use requirements;

In the above process: the tool rest 3 is integrally machined and designed, so that the condition that the fastener of the tool rest 3 fastened together by using pins or bolts is loosened or deformed to cause the fastener to be scattered is avoided, the installation working process is improved to a certain extent, and the use requirement is met; the triangular shaft type cutter shaft 2 is used for being matched with the cutter barrel 2 and the cutter rest 3, so that the overall stability of the hob body 1 is ensured, and looseness is prevented; the device is reasonable in design, simple in structure, convenient to process, stable in structure and difficult to produce loose triangle shaft type structure to adopt the fastener that the integral type processing of looks adaptation was made to install, avoid leading to the fastener to scatter the frame because of pin, bolt are not hard up, effectively ensure hob structure's result of use, improve intensity of use, fully satisfy the user demand.

In order to fully ensure the stability of the hob body 1, the limiting groove 22 is formed below the inner side of the hob barrel 2, and the semicircular grooves 32 are formed on two sides in the hob frame 3, which is specifically described as follows: the semicircular groove 32 is matched with the lower half part of one end of the cutter shaft 2, the limiting groove 22 is matched with the upper half part of one end of the cutter shaft 2, and after the cutter rest 3 and the cutter barrel 2 are connected together, the hob body 1 has good stability, looseness is not easy to occur, the use functionality is fully ensured, and the use effect is improved.

In order to further improve the rationality of setting up of the device equipment, the inner side of the cutter barrel 2 positioned at the geometric center of the double-edge groove 21 is provided with a limiting block 23 which is in a convex shape, the inner side of the cutter rest 3 corresponding to the limiting block 23 is also provided with an adapting block 33 which is in a convex shape, the contact area between the device parts is effectively increased by setting up between the limiting block 23 and the adapting block 33, the connection effect is ensured, the possibility of deviation is reduced, and the limiting block 23 and the adapting block 33 are internally provided with mounting holes 5.

In order to fully ensure the stability of the device equipment, a plurality of connecting screws 6 are uniformly distributed on the periphery above the cutter cylinder 2 and penetrate through the cutter rest 3, connecting nuts 61 are arranged at the lower ends of the connecting screws 6, and the connecting strength and the reliability among all parts are ensured by matching the connecting screws 6 with the locking nuts, so that the use effect is fully ensured, and the use requirement is met.

The present utility model is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present utility model without departing from the technical content of the present utility model still belong to the protection scope of the technical solution of the present utility model.

Claims (4)

1. The utility model provides a high strength triangle axle type hobbing cutter, includes the hobbing cutter body, the hobbing cutter body includes the arbor, the periphery of arbor geometric centre department is provided with the intermediate frame, the both sides of intermediate frame all are provided with tapered roller bearing, tapered roller bearing's periphery is provided with the cutter body, the periphery of cutter body is provided with the cutter ring, its characterized in that, the upper half at arbor both ends is trapezoidal mesa design, and its lower half is half semicylindrical design, the outside of hobbing cutter body is provided with the cutter section of thick bamboo that is hollow form design, set up the double-edged groove of being convenient for the hob body to place in the cutter section of thick bamboo, the below of cutter section of thick bamboo is provided with the knife rest, the below of knife rest is spanned and is provided with the support suspension, one side top of cutter section of thick bamboo is provided with wear detection device, and runs through the knife rest and set up.

2. The high-strength triangular shaft hob according to claim 1, wherein limiting grooves are formed below the inner side of the hob barrel, and semicircular grooves are formed in two sides of the hob frame.

3. The high-strength triangular shaft hob according to claim 2, wherein a limiting block with a convex design is arranged on the inner side of a hob barrel located in the geometric center of the double-edge groove, an adapting block with a convex design is also arranged on the inner side of a hob frame corresponding to the limiting block, and mounting holes are formed in the limiting block and the adapting block.

4. The high-strength triangular shaft hob according to claim 3, wherein a plurality of connecting screws are uniformly distributed on the upper periphery of the hob barrel and penetrate through the hob frame, and connecting nuts are arranged at the lower ends of the connecting screws.