CN216075304U

CN216075304U - Spherical tooth milling wheel swing tooth, milling wheel and slot milling machine

Info

Publication number: CN216075304U
Application number: CN202120290299.4U
Authority: CN
Inventors: 吴兴丛
Original assignee: Xuzhou Libao Machinery Technology Co ltd
Current assignee: Xuzhou Libao Machinery Technology Co ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-03-18
Anticipated expiration: 2031-02-02

Abstract

The utility model discloses a spherical tooth milling wheel swing tooth, a milling wheel and a slot milling machine, wherein the spherical tooth milling wheel swing tooth comprises: a support body and a cone; the supporting body is provided with a pin shaft hole used for realizing that the supporting body rotates and is arranged on the milling wheel, the supporting body comprises a swing arm used for installing the wear-resistant block and a supporting shaft used for installing the gear wheel, the swing arm and the supporting shaft are respectively arranged on two sides of the pin shaft hole, and the extending direction of the end part of the supporting shaft close to one side of the gear wheel and the extending direction of the end part of the swing arm close to one side of the wear-resistant block are not positioned on the same side of the pin shaft hole; the swing arm is arranged close to one side of the milling wheel; the cone is rotatably mounted on the support shaft. The utility model has compact structure, low price, convenient disassembly, assembly and maintenance, light weight, more reasonable stress in the rock breaking process, long service life and durability.

Description

Spherical tooth milling wheel swing tooth, milling wheel and slot milling machine

Technical Field

The utility model relates to the technical field of swing teeth of slot milling machines, in particular to a swing tooth of a spherical tooth milling wheel, a milling wheel and a slot milling machine.

Background

At present, a double-wheel slot milling machine is the most advanced equipment for underground diaphragm wall construction, and is increasingly applied to various projects. The milling wheel is used as a working device of a double-wheel slot milling machine and is arranged on two sides of a milling wheel speed reducer respectively, a supporting plate in the middle of the milling wheel speed reducer has a certain width, and a fixed cutter on the milling wheel cannot take out rock strata below the supporting plate. Therefore, at least one swing tooth is required to be arranged on each milling wheel to remove rock strata below the supporting plate, and the swing of the swing tooth is pushed by a guide ring with a space curve surface arranged on the supporting plate. At present, the double-wheel milling mainly comprises three types of milling wheels, which correspond to three types of swing teeth, one is standard milling wheel swing teeth, the other is cutting tooth milling wheel swing teeth, and the other is spherical tooth milling wheel swing teeth.

The standard cutter head oscillating tooth is suitable for strata with rock formation hardness of less than 30MPa, the cutting cutter head oscillating tooth is generally suitable for strata with rock formation hardness of less than 80MPa, and the spherical tooth cutter head oscillating tooth is generally suitable for strata with rock formation hardness of more than 80 MPa.

In the prior art, the swing tooth of the spherical tooth milling wheel designed for the spherical tooth milling wheel mainly comprises an independent spherical tooth hobbing cutter arranged on a swing body and comprises a swing arm and a gear wheel which are independent from each other, wherein the gear wheel is rotatably arranged on the swing arm which is rotatably arranged on the milling wheel through a pin shaft, the swing arm is mutually acted with a guide ring arranged on a milling wheel speed reducer through a wear-resistant block of the swing arm, and the gear wheel also comprises a wheel body, a bearing and a connecting shaft, the wheel body is arranged on the swing arm through the bearing and the connecting shaft, so that the gear wheel is rotatably arranged on the swing arm, like the CN1185508A in the prior art, the swing tooth in the form is expensive, large in size and heavy, so that the swing inertia of the swing tooth is large, and the wear of the wear-resistant block is easily caused; furthermore, in the rock breaking process of the swing tooth, the swing arm can swing clockwise (swing towards the side close to the rock stratum) along the guide ring to break the rock, in the rock breaking process, the rock stratum can provide reaction force for the roller cone, and as the wear-resistant block and the roller cone are arranged on the same side of the swing arm (namely, both the wear-resistant block and the roller cone are close to the guide ring or the rock stratum side) and are respectively arranged at the two ends of the pin shaft hole, when the swing arm drives the roller cone to rotate anticlockwise (swing towards the side far away from the rock stratum), the friction force between the wear-resistant block and the guide ring is greatly increased, so that the wear of the wear-resistant block is intensified; therefore, the wear-resistant block in the prior art has very short service life, needs to be continuously replaced and has high maintenance cost; meanwhile, the swing arm is unreasonably stressed between the gear wheel and the rock stratum due to the reaction force of the rock stratum in the rock breaking process, and the swing inertia of the swing tooth is large in the rock breaking process, so that the rock breaking effect of the existing swing tooth is poor.

Therefore, the technical personnel in the field need to provide a swing tooth structure which can prolong the service life of the wear-resistant block, has good rock breaking effect and is low in use cost.

Disclosure of Invention

The utility model aims to provide a spherical tooth milling wheel oscillating tooth, a milling wheel and a slot milling machine. The utility model has compact structure, low price, convenient disassembly, assembly and maintenance, light weight, more reasonable stress in the rock breaking process, long service life and durability.

The technical scheme provided by the utility model is as follows:

the utility model discloses a spherical tooth milling wheel swing tooth, which comprises:

a support body and a cone;

the supporting body is provided with a pin shaft hole used for realizing that the supporting body rotates and is arranged on a milling wheel, the supporting body comprises a swing arm used for installing a wear-resistant block and a supporting shaft used for installing a gear wheel, the swing arm and the supporting shaft are respectively arranged on two sides of the pin shaft hole, and the extending direction of the end part of the supporting shaft close to one side of the gear wheel and the extending direction of the end part of the swing arm close to one side of the wear-resistant block are not positioned on the same side of the pin shaft hole;

the swing arm is arranged close to one side of the milling wheel; the cone is rotatably mounted on the support shaft.

Preferably, a limit surface abutted with a limit block is formed on the outer side wall of the swing arm close to one side of the support shaft so as to limit the support body to swing to a set position; the outer side wall of one side of the swing arm, which is far away from the support shaft, is provided with the wear-resistant block matched with the guide ring so as to realize the swing of the support body; or a limiting surface abutted with a limiting block is formed on the outer side wall of one side, away from the supporting shaft, of the swing arm so as to limit the support body to swing to a set position; the outer side wall of the swing arm close to one side of the supporting shaft is provided with the wear-resistant block matched with the guide ring so as to realize the swing of the supporting body.

Preferably, the roller cone comprises a cone body and alloy teeth; the cone body is rotatably arranged on the supporting shaft; the outer side wall of the cone body is a spherical surface; the spherical surface is embedded with a plurality of alloy teeth.

Preferably, a bearing cavity is formed between the cone body and the support shaft, and a bearing is accommodated in the bearing cavity; the axial line of the supporting shaft is approximately vertical to the axial line space of the pin shaft hole.

Preferably, the support shaft is of a variable diameter structure and comprises a plurality of shaft section parts and a connecting part for connecting the swing arm; the bearing is arranged between at least one shaft section part and the cone body; and/or the bearing is arranged between the end surface of the supporting shaft close to one side of the roller cone and the roller cone body; and/or a sealing ring is arranged between the support shaft and the cone body so that the bearing cavity forms a closed space.

Preferably, the support body is further provided with a pressure compensation mechanism, the pressure compensation mechanism comprises a diaphragm and a pressing ring, and the pressing ring is fixed on the support body through a snap spring so that the pressing ring can fix the diaphragm on the support body; the diaphragm is arranged between the external environment and the bearing cavity in a spaced mode.

Preferably, the roller cone is mounted to the support shaft through a locking mechanism to restrict the roller cone from being separated from the support shaft in an axial direction of the support shaft.

Preferably, the locking mechanism comprises a steel ball and a plug pin; one side of the support shaft, which is far away from the roller cone, is provided with a plug pin hole for mounting the steel ball; the cone is provided with a first ball hole corresponding to the plug pin hole, the supporting shaft is correspondingly provided with a second ball hole which is formed with the first ball hole and used for mounting the steel ball, so that one part of the steel ball is accommodated in the first ball hole, and the other part of the steel ball is accommodated in the second ball hole; the plug pin hole is provided with the plug pin for plugging the plug pin.

The utility model also discloses a milling wheel which is provided with at least one spherical tooth milling wheel oscillating tooth.

The utility model also discloses a slot milling machine, wherein a milling wheel of the slot milling machine is provided with at least one spherical tooth milling wheel swinging tooth.

The spherical tooth milling wheel swinging tooth, the milling wheel and the slot milling machine provided by the utility model can bring at least one of the following beneficial effects:

1. according to the utility model, the swing arm and the support shaft of the swing tooth are integrally formed, wherein the swing arm is arranged on the guide ring through the wear-resistant block, the cone is rotatably arranged on the support shaft and is arranged on the milling wheel through the pin shaft hole in a swinging manner so as to realize the swinging of the cone, the structure is simple and compact, and the weight is light, so that the swinging inertia of the cone is greatly reduced, and the wear of the wear-resistant block is reduced; preferably, in the rock breaking process of the rock swinging tooth, the rock stratum can provide the rock swinging tooth with a reaction force towards one side of the wear-resistant block in the rock breaking process, and the rock swinging tooth and the wear-resistant block are positioned at two sides (namely two ends of the supporting body) of the pin shaft hole and are arranged at different sides, so that the supporting body has a tendency of moving towards one side of the rock stratum around the pin shaft hole (namely the swing arm has a tendency of moving towards one side of the rock stratum around the pin shaft hole in the rock breaking process, and the wear-resistant block has a tendency of moving away from one side of the guide ring around the pin shaft hole), so that the rock swinging tooth has a tendency of always approaching the rock stratum in the rock breaking process, the rock breaking stress is more reasonable, the rock breaking efficiency and the rock breaking effect are better, meanwhile, the amplitude of violent bouncing of the swing arm due to the reaction force of the rock stratum is reduced, and the swing inertia of the rock swinging tooth is reduced; the moment arm of the swing inertia in the prior art is the distance between the wear-resistant block and the stress point between the rock stratum and the cone, while the moment arm of the swing inertia is the distance between the pin shaft hole and the stress point between the rock stratum and the cone, so the swing inertia of the swing tooth is smaller; preferably, the wear-resistant blocks have the tendency of being far away from the guide ring, so that the friction force between the wear-resistant blocks and the guide ring is greatly reduced, the wear of the wear-resistant blocks is greatly reduced, meanwhile, the guide ring is easier to guide the wear-resistant blocks to move, and the cone is easier to swing under the pushing of the guide ring to remove rock strata below the supporting plate. The swing tooth has the advantages of simple and compact structure, small volume, low price, convenient disassembly, assembly and maintenance, light weight, more reasonable stress in the rock breaking process, long service life and durability.

2. The bearing greatly reduces the abrasion between the cone and the supporting shaft, so that the roller cone is durable, and the service life of the roller cone is prolonged.

3. According to the utility model, the support shaft is of a reducing structure, so that the cone body is easier to arrange in a spherical shape, the installation number of alloy teeth is increased, and the rock breaking performance of the oscillating teeth of the spherical tooth milling wheel is ensured; the arrangement of the sealing ring ensures that a bearing cavity for mounting the bearing is a closed space, so that external impurities cannot enter the bearing cavity, the cleanness of the bearing cavity is ensured, the smoothness of the rotation of the gear wheel on the supporting shaft is ensured, and the rock breaking performance of the swing teeth of the spherical tooth milling wheel is further ensured.

4. In the utility model, the locking mechanism ensures the fastening property of the cone on the supporting shaft, so that the cone cannot be separated from the supporting shaft, and the rock breaking performance of the oscillating tooth of the spherical tooth milling wheel is ensured; the effective service life of the oscillating tooth of the spherical tooth milling wheel is ensured; meanwhile, the radial and axial limiting of the cone is limited, and the oscillation inertia of the oscillating teeth of the spherical tooth milling wheel is prevented from being increased due to the oscillation of the cone.

5. According to the spherical tooth milling wheel oscillating tooth, the external environment is communicated with the bearing cavity through the pressure compensation mechanism, so that the pressure between the bearing cavity and the outside is balanced, and the smooth and convenient use of the spherical tooth milling wheel oscillating tooth is ensured.

Drawings

The above characteristics, technical features and advantages of the oscillating and oscillating toothed ball-toothed milling wheel and of the slotter, as well as the manner of realisation thereof, will be further explained in the following description of a preferred embodiment thereof, in a clearly understandable manner, with reference to the attached drawings.

FIG. 1 is a schematic sectional view of an embodiment of a wobble tooth of a spherical tooth milling wheel according to the present invention;

FIG. 2 is a schematic structural view of another embodiment of a spherical tooth milling wheel wobble tooth of the present invention;

FIG. 3 is a schematic diagram of one embodiment of a cutterhead of the present invention;

fig. 4 is a schematic view of a partially enlarged structure at a of fig. 3.

The reference numbers illustrate: 11. the novel milling cutter comprises a speed reducer, 12, a guide ring, 2, a milling wheel, 201, a hub, 202, a swinging tooth base, 203, a limiting block, 21, a first fixed spherical tooth, 22, a second fixed spherical tooth, 5, a spherical tooth milling wheel swinging tooth, 501, a supporting body, 502, a pin shaft hole, 503, a swinging arm, 504, a supporting shaft, 505, a limiting surface, 506, a first sliding bearing, 507, a second sliding bearing, 508, a third sliding bearing, 509, a sealing ring, 510, a steel ball, 511, a diaphragm, 512, a pressing ring, 513, a fixed hole, 514, a plug pin, 515, a first channel, 516, a plug pin hole, 517, a second channel, 518, a third channel, 519, a snap spring, 520, a through hole, 53, a wear-resistant block, 54, a cone, 541, a cone body, 542, an alloy tooth, 55, a pressure compensation mechanism and 6 pin shafts.

Detailed Description

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the utility model, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.

For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.

In one embodiment of the present invention, as shown in fig. 1-4, a spherical tooth cutterhead swing tooth, includes: a support body 501 and a cone 54; the supporting body 501 is provided with a pin shaft hole 502 which is used for realizing the rotation of the supporting body 501 and is arranged on the milling wheel 2, the supporting body 501 comprises a swing arm 503 used for installing the wear-resistant block 53 and a supporting shaft 504 used for installing the roller cone 54, the swing arm 503 and the supporting shaft 504 are respectively arranged on two sides of the pin shaft hole 502, and the extending direction of the end part of the supporting shaft 504 close to one side of the roller cone 54 and the extending direction of the end part of the swing arm 503 close to one side of the wear-resistant block 53 are not positioned on the same side of the pin shaft hole 502; the swing arm 503 is arranged close to one side of the milling wheel 2; cone 54 is rotatably mounted on support shaft 504.

In practical application, the support 501 is installed on the milling wheel 2 through a pin shaft 6 penetrating a pin shaft hole 502 formed in the support, the milling wheel 2 comprises a hub 201 and a plurality of spherical teeth, the hub 201 is provided with a swing tooth base 202 corresponding to the swing teeth 5 of the spherical tooth milling wheel, and two ends of the pin shaft 6, which are sleeved with the swing teeth 5 of the spherical tooth milling wheel, are connected to the swing tooth base 202 in a shaft mode. The hub 201 mounts the spherical teeth, which include a first fixed spherical tooth 21 and a second fixed spherical tooth 22 oriented differently. The first and second fixed

spherical teeth

21 and 22 are mounted to the hub 201 at different locations.

In the rock breaking process of the spherical-tooth milling wheel wobble tooth 5, as the milling wheel 2 breaks rock downwards, the spherical-tooth milling wheel wobble tooth 5 pushes the cone 54 to remove rock formations below the supporting plate under the pushing of the guide ring 12, the rock formations can provide reaction force for the cone 54 towards one side of the wear-resistant block 53 in the rock breaking process of the cone 54, as the cone 54 and the wear-resistant block 53 are positioned at two sides of the pin shaft hole 502 (namely two ends of the supporting body 501) and different sides are arranged in the pin shaft hole 502 (the swing arm 503 extends towards one side of the rock formations, the supporting shaft 504 is far away from one side of the rock formations and extends downwards), the supporting body 501 has the tendency of moving around the pin shaft hole 502 (namely the pin shaft 6) towards one side of the rock formations (namely the swing arm 503 has the tendency of moving around the pin shaft hole 502 (namely the pin shaft 6) towards one side of the rock formations in the rock breaking process, and the wear-resistant block 53 has the tendency of moving around the pin shaft hole 502 (namely the pin shaft 6) far away from one side of the guide ring 12), the cone 54 has the tendency of being always close to a rock stratum in the rock breaking process, the rock breaking stress is more reasonable, the rock breaking efficiency and the rock breaking effect are better, meanwhile, the amplitude of violent jumping of the swing arm 503 due to the reaction force of the rock stratum is reduced, and the swing inertia of the swing teeth 5 of the spherical tooth milling wheel is reduced; preferably, as the wear-resistant blocks 53 have a tendency to move away from the guide ring 12, the friction between the wear-resistant blocks 53 and the guide ring 12 is reduced, the wear of the wear-resistant blocks 53 is greatly reduced, and simultaneously, the guide ring 12 is easier to guide the wear-resistant blocks 53 to move, and the roller cone 54 is easier to remove rock formations below the support plate under the pushing of the guide ring 12.

Preferably, the cone 54 is coaxially disposed with the supporting shaft 504, a bearing cavity is formed between the cone 54 and the supporting shaft 504, and the bearing cavity accommodates a bearing; the axis of the support shaft 504 is approximately spatially perpendicular to the axis of the pin shaft bore 502; the extending direction of the end of the support shaft 504 on the side closer to the cone 54 is different from the extending direction of the end of the swing arm 503 on the side farther from the pin hole 502.

Preferably, a limit surface 505 abutting against the limit block 203 is formed on the outer side wall of the swing arm 503 near the support shaft 504 to limit the support body 501 from swinging to a set position; the outer side wall of the swing arm 503 on the side away from the support shaft 504 is provided with a wear-resistant block 53 which is matched with the guide ring 12 to realize the swing of the support body 501. In practical application, the limit of the swing angle of the spherical gear milling wheel swing tooth 5 is realized by the matching of the limit surface 505 and the limit block 203 on the hub 201, and meanwhile, the spherical gear milling wheel swing tooth 5 is slidably mounted on the guide ring 12 of the speed reducer 11 through the wear-resistant block 53. It should be noted that the wear-resistant block 53 and the swing arm 503 of the present invention may be integrally formed, that is, the wear-resistant block 53 is a part of the structure of the swing arm 503 or the swing arm 503 is formed by coating a wear-resistant layer; the wear-resistant block 53 and the swing arm 503 can also be two independent components, and the wear-resistant block 53 can be arranged on the swing arm 503 by welding or assembly connection, and the like, all of which belong to the protection scope of the utility model.

Optionally, cone 54 includes a cone body 541 and alloy teeth 542; the cone body 541 is rotatably mounted on the support shaft 504; the outer side wall of the sprocket body 541 is a spherical surface; the spherical surface is embedded with a plurality of alloy teeth 542. Preferably, the cone body 541 is a spherical structure, the installation positions of the plurality of alloy teeth 542 are arranged at different positions of the spherical surface, and are annularly arranged along the radial direction of the support shaft 504 as ring teeth, and the plurality of ring teeth are sequentially arranged along the axial direction of the support shaft 504. In practice, the alloy teeth 542 may be oriented in the same or different directions.

Optionally, the supporting shaft 504 is of a variable diameter structure and includes a plurality of shaft segment portions and a connecting portion for connecting the swing arm 503; a bearing is provided between at least one of the shaft sections and the cone body 541. Optionally, a bearing is provided between the end surface of support shaft 504 on the side adjacent cone 54 and cone body 541.

Optionally, a sealing ring 509 is provided between the support shaft 504 and the cone body 541 to form a closed space for the bearing cavity.

Alternatively, the cone 54 is mounted to the support shaft 504 by a locking mechanism to restrict the cone 54 from disengaging from the support shaft 504 in the axial direction of the support shaft 504.

Optionally, the locking mechanism includes a steel ball 510 and a plug pin 514; a plug pin hole 516 communicated with the bearing cavity is formed in one side, away from the roller cone 54, of the support shaft 504; the cone 54 is provided with a first ball hole corresponding to the plug pin hole 516, and the support shaft 504 is provided with a second ball hole corresponding to the first ball hole for mounting the steel ball 510; the plug pin hole 516 holds a plug pin 514 for plugging itself.

Optionally, the supporting body 501 is further provided with a pressure compensation mechanism 55, the pressure compensation mechanism 55 includes a diaphragm 511 and a pressing ring 512, the pressing ring 512 is fixed to the supporting body 501 by a snap spring 519, so that the pressing ring 512 fixes the diaphragm 511 to the supporting body 501; the diaphragm 511 is spaced between the external environment and the bearing cavity.

Illustratively, as shown in fig. 1, the support shaft 504 includes a connecting portion, a first shaft segment, a second shaft segment, a third shaft segment, and a fourth shaft segment; the connecting part is connected with the swing arm 503, and the outer diameters of the connecting part, the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are gradually reduced, so that a first step is formed between the connecting part and the first shaft section, a second step is formed between the first shaft section and the second shaft section, a third step is formed between the second shaft section and the third shaft section, and a fourth step is formed between the third shaft section and the fourth shaft section; because the cone body 541 is matched with the supporting shaft 504, the inner side wall of the cone body 541 is also of a diameter-variable structure; the cone body 541 is correspondingly provided with a first shaft cavity, a second shaft cavity, a third shaft cavity, a fourth shaft cavity and a fifth shaft cavity, wherein the inner diameter of the first shaft cavity, the second shaft cavity, the third shaft cavity, the fourth shaft cavity and the fifth shaft cavity are gradually reduced; a fifth step is formed between the first shaft cavity and the second shaft cavity, a sixth step is formed between the second shaft cavity and the third shaft cavity, a seventh step is formed between the third shaft cavity and the fourth shaft cavity, and an eighth step is formed between the fourth shaft cavity and the fifth shaft cavity; the bearings are preferably sliding bearings, and particularly comprise a first sliding bearing 506, a second sliding bearing 507 and a third sliding bearing 508; a sealing ring 509 is accommodated between the first step and the fifth step, and the sealing ring 509 enables the bearing cavity to form a closed space; the second sliding bearing 507 is sleeved on the second shaft section, and the second sliding bearing 507 is accommodated between the second step and the sixth step; the third shaft section is provided with a second ball hole, and the inner side wall of the third shaft cavity is provided with a first ball hole; the first sliding bearing 506 is sleeved on the fourth shaft section, and the first sliding bearing 506 is accommodated between the fourth step and the eighth step; a third sliding bearing 508 is provided between the end surface of support shaft 504 remote from the first shaft section and cone body 541.

The plug pin hole 516 is obliquely projected to the support shaft 504, and the plug pin hole 516 is arranged at an angle with the axis of the support shaft 504; a second channel 517 is arranged in the middle of the supporting shaft 504, and the axial direction of the second channel 517 is parallel to the axial direction of the supporting shaft 504; one end of the second channel 517 is communicated with the plug pin hole 516, and the other end of the second channel 517 is communicated with the bearing cavity; the supporting body 501 is provided with an installation groove corresponding to the pressure compensation mechanism 55, and the installation groove and the supporting shaft 504 are arranged in the pin shaft hole 502 at the same side; the installation groove is of a reducing structure to form an installation step, so that the end part of the pressing ring 512 close to one side of the diaphragm 511 is supported on the installation step, the clamp spring 519 is arranged at the end part of the pressing ring 512 far away from one side of the diaphragm 511, the pressing ring 512 with the diaphragm 511 is covered on the installation step, and the diaphragm 511 is arranged between the shaft hole of one part of the installation groove close to the bottom of the installation groove and the external environment in an isolated mode; the press ring 512 is provided with a plurality of through holes 520 corresponding to the membrane 511 so that the membrane 511 is in contact with the air of the external environment; the bottom of the mounting groove is provided with a first channel 515 which is communicated with the mounting groove and the plug pin hole 516, one end of the first channel 515 is communicated with the mounting groove, and the other end of the first channel 515 is communicated with the plug pin hole 516; preferably, the fourth shaft section is provided with a third channel 518 in the radial direction, one end of the third channel 518 is communicated with the second channel 517, and one end of the third channel 518 is communicated with the bearing cavity. Optionally, the plug pin 514 is of a reducing structure and includes a large-diameter head end and a small-diameter middle section, the two large-diameter head ends are respectively disposed in the small-diameter middle section, the large-diameter head end plugs the plug pin hole 516, and the radial size of the small-diameter middle section is smaller than the pore size of the plug pin hole 516, so that the part of the plug pin hole 516 corresponding to the small-diameter middle section is respectively communicated with the second channel 517 and the first channel 515; and the major diameter head end makes stopper pin hole 516 shutoff and makes the outside diameter impurity can't enter into the inner space of stopper pin hole 516, guarantees the inside cleanness of stopper pin hole 516. The support body 501 is provided with a fixing hole 513 corresponding to the plug pin 514, and the fixing piece fixes the plug pin 514 to the plug pin hole 516 through the fixing hole 513; in practical applications, in order to secure the plug 514 to the plug hole 516, the plug 514 may be further fixed to the support body 501 by welding. Of course, in another embodiment of the present invention, the number of the shaft segment portions may be set according to actual needs.

In an embodiment of the present invention, unlike the above-described embodiments, a limit surface 505 abutting against the limit block 203 is formed on an outer side wall of the swing arm 503 of the present embodiment on a side away from the support shaft 504 to limit the support body 501 from swinging to a set position; the outer side wall of the swing arm 503 near the side of the support shaft 504 is provided with a wear-resistant block 53 which is matched with the guide ring 12 to realize the swing of the support body 501.

The utility model also discloses a milling wheel, and the milling wheel 2 is provided with at least one spherical tooth milling wheel oscillating tooth 5.

The utility model also discloses a slot milling machine, wherein a milling wheel 2 of the slot milling machine is provided with at least one spherical tooth milling wheel swinging tooth 5.

It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a spherical tooth milling cutter pendulum tooth which characterized in that includes:

a support body (501) and a cone (54);

the supporting body (501) is provided with a pin shaft hole (502) used for realizing rotation of the supporting body and arranged on the milling wheel (2), the supporting body (501) comprises a swing arm (503) used for installing a wear-resistant block and a supporting shaft (504) used for installing a roller cone (54), the swing arm (503) and the supporting shaft (504) are respectively arranged on two sides of the pin shaft hole (502), and the extending direction of the end part of the supporting shaft (504) close to one side of the roller cone (54) and the extending direction of the end part of the swing arm (503) close to one side of the wear-resistant block (53) are not located on the same side of the pin shaft hole (502);

the swing arm (503) is arranged close to one side of the milling wheel (2); the cone (54) is rotatably mounted to the support shaft (504).

2. The spherical toothed milling wheel wobble tooth of claim 1, wherein:

the outer side wall of the swing arm (503) close to one side of the supporting shaft (504) forms a limit surface (505) abutted with a limit block (203) so as to limit the support body (501) to swing to a set position; the outer side wall of one side of the swing arm (503), which is far away from the supporting shaft (504), is provided with the wear-resistant block (53) which is matched with the guide ring (12) so as to realize the swing of the supporting body (501); or the like, or, alternatively,

the outer side wall of the swing arm (503) on the side far away from the support shaft (504) forms a limit surface (505) abutted with a limit block (203) so as to limit the support body (501) to swing to a set position; the outer side wall of one side, close to the supporting shaft (504), of the swing arm (503) is provided with the wear-resistant block (53) matched with the guide ring (12) so as to realize the swing of the supporting body (501).

3. The spherical toothed milling wheel wobble tooth of claim 1, wherein:

the cone (54) comprises a cone body (541) and alloy teeth (542);

the cone body (541) is rotatably mounted on the supporting shaft (504); the outer side wall of the cone body (541) is a spherical surface; the spherical surface is embedded with a plurality of alloy teeth (542).

4. The spherical toothed milling wheel wobble tooth of claim 3, wherein:

a bearing cavity is formed between the cone body (541) and the supporting shaft (504), and a bearing is contained in the bearing cavity; the axis of the supporting shaft (504) is approximately perpendicular to the axis space of the pin shaft hole (502).

5. The spherical toothed milling wheel wobble tooth of claim 4, wherein:

the supporting shaft (504) is of a variable diameter structure and comprises a plurality of shaft section parts and a connecting part for connecting the swing arm (503); the bearing is arranged between the at least one shaft section part and the cone body (541); and/or the presence of a gas in the gas,

the bearing is arranged between the end surface of the supporting shaft (504) close to one side of the roller cone (54) and the roller cone body (541); and/or the presence of a gas in the gas,

and a sealing ring (509) is arranged between the supporting shaft (504) and the cone body (541) so as to form a closed space in the bearing cavity.

6. The spherical toothed milling wheel wobble tooth of claim 4, wherein:

the supporting body (501) is further provided with a pressure compensation mechanism (55), the pressure compensation mechanism (55) comprises a diaphragm (511) and a pressing ring (512), and the pressing ring (512) is fixed on the supporting body (501) through a clamp spring (519) so that the pressing ring (512) can fix the diaphragm (511) on the supporting body (501); the diaphragm (511) is arranged between the external environment and the bearing cavity in an isolated mode.

7. The spherical toothed milling wheel wobble tooth according to any one of claims 1 to 6, characterized in that:

the cone (54) is mounted to the support shaft (504) by a locking mechanism to restrict the cone (54) from disengaging from the support shaft (504) in an axial direction of the support shaft (504).

8. The spherical toothed milling wheel wobble tooth of claim 7, wherein:

the locking mechanism comprises a steel ball (510) and a plug pin (514);

a plug pin hole (516) for mounting the steel ball (510) is formed in one side, away from the roller cone (54), of the supporting shaft (504);

the cone (54) is provided with a first ball hole corresponding to the plug pin hole (516), the support shaft (504) is correspondingly provided with a second ball hole which forms a first ball hole with the first ball hole and is used for mounting the steel ball (510), so that one part of the steel ball (510) is accommodated in the first ball hole, and the other part of the steel ball (510) is accommodated in the second ball hole;

the plug pin hole (516) is provided with the plug pin (514) for plugging itself.

9. A cutterhead provided with at least one spherical-toothed cutterhead oscillating tooth according to any of claims 1-8.

10. A slot milling machine, characterized in that the cutterhead of the slot milling machine is provided with at least one spherical toothed cutterhead oscillating tooth according to any of the preceding claims 1-8.