CN114517689A - Conical cutter head and heading machine - Google Patents

Conical cutter head and heading machine Download PDF

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Publication number
CN114517689A
CN114517689A CN202210161871.6A CN202210161871A CN114517689A CN 114517689 A CN114517689 A CN 114517689A CN 202210161871 A CN202210161871 A CN 202210161871A CN 114517689 A CN114517689 A CN 114517689A
Authority
CN
China
Prior art keywords
cutter head
tool rest
shaft seat
side tool
conical cutter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202210161871.6A
Other languages
Chinese (zh)
Inventor
李建斌
贺飞
陈维
张世伟
张家年
朱英
喻中孝
刘点点
孟艺敏
夏亚明
马赛
马少奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Railway Engineering Equipment Group Co Ltd CREG
Original Assignee
China Railway Engineering Equipment Group Co Ltd CREG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Railway Engineering Equipment Group Co Ltd CREG filed Critical China Railway Engineering Equipment Group Co Ltd CREG
Priority to CN202210161871.6A priority Critical patent/CN114517689A/en
Publication of CN114517689A publication Critical patent/CN114517689A/en
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses a conical cutter head and a heading machine, which comprise: at least one side tool rest which is provided with at least one side tool; the shaft seat is connected with the heading machine, and the side tool rest is arranged on the shaft seat; the side cutter frame can swing relative to the axis of the shaft seat to adjust the angle of the included angle. According to the conical cutter head and the heading machine, when the heading machine drives the conical cutter head to heading along any direction, the stress state of the cutting edge of the side cutter can be adjusted to be in a good stress state, so that the problem that the cutting edge of the side cutter is cracked due to poor stress state is avoided, the side cutter is prevented from being frequently replaced, the construction cost is reduced, the cutting edge of the side cutter is heading under a good stress state, and the heading efficiency can be improved.

Description

Conical cutter head and heading machine
Technical Field
The invention relates to the technical field of engineering tunnel equipment, in particular to a conical cutter head and a heading machine.
Background
At present, the development machine is a comprehensive device which uses machinery to break rock, produce slag and support to implement continuous operation, and is widely applied to tunnel engineering of hydropower, railways and subways. The cantilever excavator has a swinging excavation function, an included angle is formed between the cutting edge of a hob on a cone of a conical cutter head and an excavation direction, and the included angle is too large, so that the stress state of the cutting edge is influenced, and the cutting edge is cracked.
It should be noted that the above description of the background art is only for the sake of clarity and complete description of the technical solution and technical problems to be solved by the present invention, and is set forth for facilitating understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.
Disclosure of Invention
The invention aims to provide a conical cutter head and a heading machine, and aims to solve the technical problem that a hob on the existing conical cutter head cannot keep a good stress state in a forward heading state and a lateral expanding excavation state, so that a cutting edge is cracked.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a conical cutter head, comprising: at least one side tool rest which is provided with at least one side tool; the shaft seat is connected with the heading machine, and the side tool rest is arranged on the shaft seat; the side cutter frame can swing relative to the axis of the shaft seat to adjust the angle of the included angle.
In an embodiment of the present invention, the tapered cutter head has a first excavation state in which the tapered cutter head excavates in the axial direction thereof and a second excavation state in which the tapered cutter head excavates in the lateral direction thereof.
In an embodiment of the invention, a critical value is set for the angle of the included angle according to a stress rule of the blade of the side cutter, and the angle of the included angle does not exceed the critical value in the first tunneling state and the second tunneling state.
In an embodiment of the present invention, the side tool rest is connected to the shaft seat through an extensible member, and the extensible member can extend or contract and drive the side tool rest to swing relative to an axis of the shaft seat.
In the implementation mode of the invention, a supporting piece is arranged on the shaft seat, and the side tool rest is hinged with the supporting piece.
In the implementation mode of the invention, a sliding groove is arranged on the side tool rest, and the sliding groove is provided with a first stop end and a second stop end; the telescopic piece is provided with a fixed end and a telescopic end, the fixed end is fixedly connected with the shaft seat, and the telescopic end slides along the sliding groove in the swinging state of the side tool rest; the telescopic end extends and abuts against the first stop end in the state that the conical cutter head digs along one direction, and the telescopic end contracts and abuts against the second stop end in the state that the conical cutter head digs along the other direction.
In an embodiment of the present invention, the number of the side tool rests is at least two, and at least two side tool rests are arranged at intervals along the circumferential direction of the shaft seat.
In an embodiment of the invention, the shaft seat is further provided with an intermediate tool rest, the intermediate tool rest is provided with at least one intermediate tool, and at least two side tool rests are symmetrically distributed relative to the intermediate tool rest.
In an embodiment of the present invention, the side cutter and the middle cutter are both hobs, and a plurality of hobs are arranged on the side cutter frame and the middle cutter frame at intervals.
The invention also provides a heading machine which comprises the conical cutter head.
The invention has the characteristics and advantages that:
according to the conical cutter head and the heading machine, the angle of the included angle between the cutting edge of the cutter on the upper side of the side cutter frame and the heading direction is adjusted by swinging the side cutter frame relative to the axis of the shaft seat, and further the stress state of the cutting edge of the side cutter is adjusted, so that when the heading machine drives the conical cutter head to heading along any direction, the stress state of the cutting edge of the side cutter can be adjusted to be in a good stress state, the problem that the cutting edge of the side cutter is cracked due to poor stress state is avoided, the side cutter is prevented from being frequently replaced, the construction cost is reduced, the cutting edge of the side cutter is heading under a good stress state, and the heading efficiency can be improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of the conical cutter head of the invention when the conical cutter head is tunneled along one direction.
Fig. 2 is a schematic structural view of the conical cutter head of the invention when the conical cutter head is used for tunneling along another direction.
Figure 3 is a schematic view of the present invention cutterhead in a first tunneling condition.
Figure 4 is a schematic view of the cone head of the present invention in a second state of excavation.
In the figure:
1. a shaft seat; 11. an installation end; 12. a connecting end; 2. a side tool holder; 21. a side cutter beam; 22. a side tool apron; 3. a side cutter; 31. a blade; 4. a chute; 41. a first stop end; 42. a second stop end; 6. a support member; 7. a telescoping member; 71. a telescopic end; 72. a fixed end; 8. a pin shaft; 9. an intermediate tool rest; 10. an intermediate cutter.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Implementation mode one
As shown in fig. 1 and 2, the present invention provides a conical cutter head comprising: at least one side tool rest 2 provided with at least one side tool 3; the shaft seat 1 is connected with the heading machine, and the side tool rest 2 is arranged on the shaft seat 1; the tunneling machine can drive the conical cutter head to tunnel along at least two directions, an included angle theta is formed between the cutting edge 31 of the side cutter 3 and the tunneling direction J of the conical cutter head, and the side cutter frame 2 can swing relative to the axis Z of the shaft seat 1 to adjust the angle of the included angle theta.
According to the conical cutter head, the angle of the included angle theta between the cutting edge 31 of the cutter 3 on the upper side of the side cutter frame 2 and the tunneling direction J is adjusted by swinging the side cutter frame 2 relative to the axis Z of the shaft seat 1, and the stress state of the cutting edge 31 of the side cutter 3 is further adjusted, so that when the tunneling machine drives the conical cutter head to tunnel along any direction, the stress state of the cutting edge 31 of the side cutter 3 can be adjusted to be in a good stress state, the problem that the cutting edge 31 of the side cutter 3 cracks due to poor stress state is avoided, frequent replacement of the side cutter 3 is further avoided, construction cost is reduced, construction efficiency is improved, the cutting edge 31 of the side cutter 3 tunnels under a good stress state, and tunneling efficiency can also be improved.
Specifically, the shaft seat 1 has a connecting end 12 and a mounting end 11. The connecting end 12 is connected with a heading machine, the shaft seat 1 can rotate around the axis of the shaft seat 1 when moving along the heading direction J under the driving of the heading machine, and the side tool rest 2 is driven to synchronously rotate, so that heading is realized. The side tool holder 2 is mounted on the mounting end 11 of the shaft receptacle 1 and is located around this mounting end 11, so that the side tool holder 2 forms part of the conical working surface of the conical cutter head. The angle θ between the cutting edge 31 of the side cutter 3 and the heading direction J, i.e., the angle between the orientation a of the cutting edge 31 and the heading direction J. The heading direction J in the present invention includes, but is not limited to, a direction in which the heading direction J is linear motion and a tangential direction in which the heading direction J is curved motion. The side tool rest 2 swings relative to the axis Z of the shaft seat 1, so that the side tool rest 2 contracts inwards or expands outwards, namely the taper of the tapered cutter head is changed, and the angle of the included angle theta is also changed. The smaller the angle of the included angle θ, the better the stress state of the blade 31 of the side cutter 3, and the higher the tunneling efficiency.
As shown in fig. 3 and 4, in the embodiment of the present invention, the tapered cutter head has a first boring state and a second boring state, and the tapered cutter head is in the first boring state in the axial direction J thereof 1Tunneling, with the cone cutter head facing sideways (i.e. direction J) in the second state of tunneling2) And (6) tunneling. During construction, the conical cutter head excavates in the first tunneling state to enable an excavation face to reach a certain depth, then the conical cutter head excavates in the second tunneling state to expand the excavation face to a required area, and the operation is repeated in a circulating mode until construction is completed.
Specifically, the heading direction J of the conical cutter head in the first heading state1I.e. the axial direction of the cone cutter head, i.e. the depth direction of the excavation face. The heading machine is provided with a cantilever, the tapered cutter head is connected with the cantilever through a shaft seat 1, and the cantilever drives the tapered cutter head to excavateThe face is swung in the depth direction, that is, the tapered cutter head reciprocates in an arc direction S to tunnel the tapered cutter head to the side, and it can be seen that the side tool rest 2 can tunnel with the shaft seat 1 by swinging the cantilever in the second tunneling state, and can also adjust the included angle θ with respect to the swinging of the shaft seat 12The angle of (c). The conical cutter head moves in a curve in the second driving state, so that the driving direction J of the conical cutter head in the second driving state2I.e. the tangential direction of the swinging of the cantilever, i.e. the width direction of the excavated surface.
The angle of the included angle theta is set to be a critical value according to the stress rule of the cutting edge 31 of the side cutter 3, and the angle of the included angle theta does not exceed the critical value in the first tunneling state and the second tunneling state. The crack of the cutting edge 31 of the side cutter 3 is closely related to the stress law of the cutting edge 31 of the side cutter 3, and the stress law of the cutting edge 31 of the side cutter 3 is related to the tunneling direction J and also related to factors such as the structure, the material and the cutting speed of the cutting edge 31 of the side cutter 3, so that the cracking of the cutting edge 31 of the side cutter 3 is effectively avoided by setting a critical value according to the stress law of the cutting edge 31 of the side cutter 3 and then adjusting the angle of the included angle theta according to the critical value. In this embodiment, the included angle θ in the first heading state1And the included angle theta in the second tunneling state2The angle is no more than 30 degrees. The blade 31 of the side cutter 3 is kept in a good stressed state in both the first excavation state and the second excavation state. Specifically, in the first excavation state, the side tool rest 2 is expanded outward as much as possible (the radial dimension of the entire tapered cutterhead is increased) with respect to the axis Z of the shaft seat 1, that is, the side tool rest 2 swings outward (i.e., toward the excavation face and away from the axis Z) to increase the taper of the tapered cutterhead and to cause the cutting edge 31 of the side tool 3 to be aligned with the excavation direction J 1Angle theta therebetween1Is reduced as much as possible. In the second excavation state, the side tool rest 2 is retracted inward as much as possible with respect to the axis Z of the shaft seat 1 (the radial dimension of the entire tapered cutterhead is reduced), that is, the side tool rest 2 is swung inward (i.e., away from the excavation face and toward the axis Z) to reduce the taper of the tapered cutterhead and to cause the cutting edge 31 of the side tool 3 to move tangentially J with respect to the curved movement2Angle theta therebetween2Is reduced as much as possible. In the present invention, the critical value is not particularly limited, and if the blade 31 of the side tool 3 is at another angle, such as an angle greater than 30 degrees, such as 31 degrees, 32 degrees, 33 degrees, etc., the blade 31 of the side tool 3 can still maintain a good stressed state, and the critical value can also be set to an angle greater than 30 degrees; if the blade 31 of the side cutter 3 cannot maintain a good stress state when the included angle θ is 30 degrees, the critical value may be set to an angle smaller than 30 degrees.
As shown in fig. 1 and 2, in the embodiment of the present invention, the side blade frame 2 is connected to the shaft seat 1 through a telescopic member 7, and the telescopic member 7 can extend or contract and drive the side blade frame 2 to swing relative to the axis Z of the shaft seat 1. The side tool holder 2 is driven by the telescopic part 7 to swing, so that the angle of the included angle between the cutting edge 31 of the side tool 3 and the tunneling direction J is adjusted. In particular, the telescopic element 7 is substantially of rod-like configuration. The telescopic piece 7 is a telescopic oil cylinder. Optionally, the extensible member is an electric extensible rod.
As shown in fig. 1 and fig. 2, a supporting member 6 is disposed on the shaft seat 1, and the side tool holder 2 is hinged to the supporting member 6 through a pin 8. When the tapered cutterhead needs to switch the tunneling direction J, the side tool rest 2 rotates around the pin shaft 8 through the extension or contraction of the telescopic piece 7, and therefore the angle of the included angle theta is adjusted. The side tool rest 2 is supported by the supporting part 6, so that the structure of the side tool rest 2 is more stable. Optionally, the side blade frame is hinged to the support member by other connecting members, so that the side blade frame can rotate around an axis.
In particular, the support 6 is substantially plate-like in structure. The relative position between the support member 6 and the telescopic member 7 is not particularly limited, and may be shifted in the axial direction of the side tool holder 2 (i.e., in the generatrix direction of the cutter head). In order to better drive the side tool holder 2 to rotate around the pin 8 by the telescopic member 7 and to provide a space for mounting the telescopic member 7 between the side tool holder 2 and the shaft seat 1, the telescopic member 7 is disposed near the rear end of the side tool holder 2 (i.e., the end of the conical cutter head having a larger radial dimension). In this embodiment, the pin 8 is disposed along a tangential direction of the shaft seat 1. Optionally, the pin shaft is arranged along the radial direction of the shaft seat. Optionally, the side tool rest is directly hinged on the shaft seat through a pin shaft. The arrangement mode of the pin shaft 8 in the invention includes but is not limited to the above mode, and the side tool rest 2 can swing relative to the axis Z of the shaft seat 1.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, a sliding slot 4 is provided on the side tool holder 2, and the sliding slot 4 has a first stop end 41 and a second stop end 42; the telescopic member 7 has a fixed end 72 and a telescopic end 71, the fixed end 72 is fixedly connected with the shaft seat 1, and the telescopic end 71 slides along the chute 4 in a swinging state of the side tool rest 2 (i.e. in a state of rotating around the pin shaft 8); the telescopic end 71 extends and abuts against the first stop end 41 in a state that the cone cutter advances in one direction, and the telescopic end 71 contracts and abuts against the second stop end 42 in a state that the cone cutter advances in the other direction. Through the stiff end 72 with extensible member 7 and axle bed 1 fixed connection to set up spout 4 on side tool rest 2, make side tool rest 2's structure more stable, side tool rest 2 can not appear rocking under the state that extensible member 7 is not flexible promptly, and can utilize first only end 41 and the second only end 42 of spout 4 to advance line location and spacing respectively to side tool rest 2 under two kinds of tunnelling states, need not to set up other setting elements and locating part, simple structure, easily control.
Specifically, the side tool rest 2 includes two side tool beams 21 and at least one side tool rest 22, both ends of the side tool rest 22 are connected to the two side tool beams 21, and the side tool 3 is mounted on the side tool rest 22. The side cutter beam 21 is provided with a pin shaft hole for penetrating the pin shaft 8 and a chute 4 for connecting with the telescopic piece 7. The chute 4 is a waist-shaped through groove. The telescopic end 71 of the telescopic member 7 is provided with a cylindrical shaft which is matched with the semi-circular arc surfaces at the two ends of the waist-shaped through groove. The semi-circular arc surfaces at the two ends of the waist-shaped through groove respectively form a first stop end 41 and a second stop end 42. The length and the layout position of the sliding groove 4 are not particularly limited, the design is carried out according to the swing angle required when the side tool rest 2 is switched, and an included angle is formed between the length direction of the sliding groove 4 and the telescopic direction of the telescopic piece 7, so that the telescopic piece 7 can apply pulling force and pushing force to the side tool rest 2. In this embodiment, in order to better apply the pushing force and the pulling force to the side tool rest 2 by the extensible member 7, when the side tool rest 2 swings to the right position, the included angle between the length direction of the sliding slot 4 and the extensible direction of the extensible member 7 approaches 90 degrees, so that under the pushing force of the extensible member 7, the extensible member 7 abuts against the first stop end 41, the side tool rest 2 can also swing under the pulling force of the extensible member 7, and under the pulling force of the extensible member 7, the extensible member 7 abuts against the second stop end 42, and the side tool rest 2 can also swing under the pushing force of the extensible member 7.
Referring to fig. 3, when the cutterhead needs to be switched to the first tunneling state, the telescopic member 7 extends and pushes the side tool rest 2 to rotate around the pin shaft 8, so that the taper of the cutterhead is increased, and the cutting edge 31 of the side tool 3 is in the axial direction (i.e. the tunneling direction J) of the shaft seat 11) Angle theta therebetween1The angle becomes smaller until the telescopic end 71 of the telescopic member 7 slides along the sliding slot 4 to abut against the first stop end 41, the side tool rest 2 stops rotating and the included angle theta is formed1The angle of the angle is adjusted in place. As shown in fig. 4, when the cutterhead needs to be switched to the second tunneling state, the telescopic member 7 is contracted and pulls the side tool rest 2 to rotate around the pin shaft 8, so that the taper of the cutterhead is reduced, and the cutting edge 31 of the side tool 3 is in the tangential direction (i.e. the tunneling direction J) when the cantilever swings with respect to the cutting edge 31 of the side tool 32) Angle theta therebetween2The angle becomes smaller until the telescopic end 71 of the telescopic part 7 slides along the sliding slot 4 to abut against the second stop end 42, the side tool rest 2 stops rotating and the included angle theta is formed2The angle of the angle is adjusted in place. Optionally, the fixed end of the telescopic member is hinged to the shaft seat, and the telescopic end of the telescopic member is hinged to the side tool rest. Alternatively, the sidecar may be mounted to the axle seat by other linkage arrangements.
As shown in fig. 1 and 2, in the embodiment of the present invention, the number of the side tool holders 2 is at least two, and at least two side tool holders 2 are arranged at intervals along the circumferential direction of the shaft seat 1. The shaft seat 1 drives at least two side cutters 3 on the side tool rests 2 to tunnel under the driving of the tunneling machine. Specifically, each side tool rest 2 has the same structure and is mounted on the shaft seat 1 through at least one telescopic member 7 and at least one supporting member 6, and each side tool rest 2 is hinged with the supporting member 6 through a pin 8. The number of the side tool holders 2 is not particularly limited, and the side tool holders can be designed according to the size of the conical cutter head.
As shown in fig. 1 and 2, the shaft seat 1 is further provided with an intermediate tool rest 9, the intermediate tool rest 9 is provided with at least one intermediate tool 10, and the at least two side tool rests 2 are symmetrically distributed relative to the intermediate tool rest 9. As shown in fig. 3, in the first excavation state, the middle cutter 10 of the middle cutter frame 9 and the side cutter 3 of the side cutter frame 2 excavate together, thereby improving the excavation efficiency. As shown in fig. 4, in the second excavation mode, only the upper tool 3 of the side tool post 2 performs excavation.
Specifically, the middle tool rest 9 includes two middle tool beams and at least one middle tool apron, the two middle tool beams are connected with two ends of the middle tool apron, and the middle tool 10 is installed on the middle tool apron. The middle knife beam is welded and fixed on the shaft seat 1, and the middle knife rest 9 forms a conical top working surface of the conical cutter head. The intermediate tool rest 9 is fixedly arranged on the shaft seat 1, and the direction of the blade of the intermediate tool 10 is basically parallel to the axis Z of the shaft seat 1, so that in the first tunneling state, the blade of the intermediate tool 10 is parallel to the tunneling direction J1The included angle between the cutting edges is very small, so that the middle cutter 10 is kept in a good stress state, and in the second tunneling state, the cutting edge of the middle cutter 10 does not participate in tunneling work, so that the middle cutter frame 9 can be fixedly arranged without adjusting the cutting edge of the middle cutter 10 and the tunneling direction J 2The included angle therebetween.
As shown in fig. 1 and 2, the side cutter 3 and the middle cutter 10 are both hobs, and a plurality of hobs are arranged on the side cutter holder 2 and the middle cutter holder 9 at intervals. The rock is broken by the constant rolling of the hob. Optionally, pick-type tools or other types of tools may be mounted on the side tool holders 2 and the middle tool holder 9. Specifically, the number and arrangement intervals of the side cutters 3 and the middle cutters 10 are not particularly limited, and may be arranged according to geological conditions. Since the distance between the cutting edge tracks of the plurality of side cutters 3 and the plurality of middle cutters 10 directly determines the tunneling efficiency, the relative positions of each side cutter frame 2 and the corresponding telescopic part 7, the support part 6, the pin shaft 8 and the shaft seat 1 are consistent, the swinging angle of each side cutter frame 2 is ensured to be the same when the conical cutter head switches the tunneling state, and the distance between the cutting edge tracks of the upper cutters 3 of different side cutter frames 2 is ensured to be consistent all the time.
Second embodiment
The invention also provides a heading machine which comprises the conical cutter head. The structure, the working principle and the beneficial effects of the conical cutter head are the same as those of the conical cutter head in the first embodiment, and are not described again. The structure, the working principle and the beneficial effects of the heading machine in the first embodiment are the same as those of the heading machine in the first embodiment, and are not described again here.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.

Claims (10)

1. A conical cutter head, comprising:
at least one side tool rest which is provided with at least one side tool;
the shaft seat is connected with the heading machine, and the side tool rest is arranged on the shaft seat;
the side cutter frame can swing relative to the axis of the shaft seat to adjust the angle of the included angle.
2. The conical cutter head of claim 1 wherein,
the conical cutter head is provided with a first tunneling state and a second tunneling state, the conical cutter head tunnels along the axial direction of the conical cutter head in the first tunneling state, and the conical cutter head tunnels towards the side of the conical cutter head in the second tunneling state.
3. The conical cutter head of claim 2 wherein,
and the angle of the included angle is set to be a critical value according to the stress rule of the cutting edge of the side cutter, and the angle of the included angle does not exceed the critical value under the first tunneling state and the second tunneling state.
4. The conical cutter head of claim 1 wherein,
the side tool rest is connected with the shaft seat through a telescopic piece, and the telescopic piece can extend or contract and drive the side tool rest to swing relative to the axis of the shaft seat.
5. The conical cutter head of claim 4 wherein,
the shaft seat is provided with a supporting piece, and the side tool rest is hinged with the supporting piece.
6. The conical cutter head of claim 5 wherein,
the side tool rest is provided with a sliding groove, and the sliding groove is provided with a first stop end and a second stop end;
the telescopic piece is provided with a fixed end and a telescopic end, the fixed end is fixedly connected with the shaft seat, and the telescopic end slides along the sliding groove in the swinging state of the side tool rest;
the telescopic end extends and abuts against the first stop end in the state that the conical cutter head tunnels along one direction, and the telescopic end contracts and abuts against the second stop end in the state that the conical cutter head tunnels along the other direction.
7. The conical cutter head of claim 1 wherein,
the number of the side tool rests is at least two, and the at least two side tool rests are arranged at intervals along the circumferential direction of the shaft seat.
8. The conical cutter head of claim 7 wherein,
the shaft seat is further provided with an intermediate tool rest, the intermediate tool rest is provided with at least one intermediate tool, and the at least two side tool rests are symmetrically distributed relative to the intermediate tool rest.
9. The conical cutter head of claim 8 wherein,
the side cutter with middle cutter is the hobbing cutter, the side cutter frame with it is a plurality of all at intervals to arrange on the middle cutter frame the hobbing cutter.
10. A heading machine comprising a conical cutter head as claimed in any one of claims 1 to 9.
CN202210161871.6A 2022-02-22 2022-02-22 Conical cutter head and heading machine Pending CN114517689A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210161871.6A CN114517689A (en) 2022-02-22 2022-02-22 Conical cutter head and heading machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210161871.6A CN114517689A (en) 2022-02-22 2022-02-22 Conical cutter head and heading machine

Publications (1)

Publication Number Publication Date
CN114517689A true CN114517689A (en) 2022-05-20

Family

ID=81598574

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210161871.6A Pending CN114517689A (en) 2022-02-22 2022-02-22 Conical cutter head and heading machine

Country Status (1)

Country Link
CN (1) CN114517689A (en)

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