CN114483779A - Cutter head driving and rotating mechanism of shield machine - Google Patents
Cutter head driving and rotating mechanism of shield machine Download PDFInfo
- Publication number
- CN114483779A CN114483779A CN202210109514.5A CN202210109514A CN114483779A CN 114483779 A CN114483779 A CN 114483779A CN 202210109514 A CN202210109514 A CN 202210109514A CN 114483779 A CN114483779 A CN 114483779A
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- Prior art keywords
- ring
- inner ring
- shield machine
- roller
- sub
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- 238000009434 installation Methods 0.000 claims description 23
- 238000005096 rolling process Methods 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 20
- 238000000429 assembly Methods 0.000 claims description 20
- 238000003825 pressing Methods 0.000 claims description 14
- 238000000034 method Methods 0.000 abstract description 15
- 239000011435 rock Substances 0.000 description 8
- 230000005641 tunneling Effects 0.000 description 7
- 238000009412 basement excavation Methods 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/54—Systems consisting of a plurality of bearings with rolling friction
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- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
Abstract
The invention discloses a cutter head driving slewing mechanism of a shield machine, which comprises a bearing assembly, wherein the bearing assembly comprises an outer ring, a secondary inner ring and a primary inner ring; the outer ring is of an annular structure and is formed by installing an upper outer ring and a lower outer ring; the inner side of the sub inner ring is rotatably arranged on the outer side of the outer ring, and the outer side of the mother inner ring is rotatably arranged on the inner side of the outer ring. Compared with the prior art, the shield machine cutter head driving slewing mechanism has the advantages that the sub inner ring and the female inner ring are respectively arranged on the outer side and the inner side of the outer ring, the sub inner ring and the female inner ring can run at different rotating speeds or directions through the driving device, resistance encountered in the shield machine digging process can be reduced, and meanwhile, compared with three rows of roller bearings, the bearing assembly is more reasonable in spatial arrangement, the spatial layout of the sub cutter head and the female cutter head is optimized, meanwhile, the bearing assembly is lighter, and resistance encountered in the shield machine digging process is further reduced.
Description
Technical Field
The invention relates to the field of shield machine equipment, in particular to a cutter head driving slewing mechanism of a shield machine.
Background
The slewing bearing of the heading machine is one of key parts, serves as a transmission link between a speed reducer and a cutter head, transmits torque, and simultaneously bears complex and variable impact loads in the heading process of the cutter head, wherein the impact loads include axial loads, radial loads and overturning moments. The diameter of a cutter head of the tunneling machine is increased due to the increase of the excavation area, and for hard rocks with compact and thick texture, the larger the diameter of the cutter head is, the larger the borne resistance is, so that the excavation difficulty is greatly improved, and the processing amount of a ferrule ring forging of a slewing bearing (a common three-row cylindrical roller bearing) serving as a transmission key component is larger.
In the operation process of the shield machine, the excavation difficulty and the high-power loss are met in the excavation process of the shield machine with the ultra-large diameter.
Disclosure of Invention
In order to solve the technical problems, the invention provides a cutter head driving slewing mechanism of a shield machine, which is provided with a bearing assembly provided with a sub inner ring and a main inner ring simultaneously, so that the resistance encountered in the excavation process of the shield machine is reduced.
The technical scheme provided by the invention is as follows:
a cutter head driving and rotating mechanism of a shield machine, which comprises a bearing assembly,
the bearing assembly comprises an outer ring, a sub inner ring and a female inner ring;
the outer ring is of an annular structure and is formed by installing an upper outer ring and a lower outer ring;
the inner side of the sub inner ring is rotatably arranged on the outer side of the outer ring, and the outer side of the female inner ring is rotatably arranged on the inner side of the outer ring.
The inner side of the female inner ring is provided with an inner gear ring, and the outer side of the male inner ring is provided with an outer gear ring.
The slewing mechanism comprises more than two groups of bearing assemblies, the bearing assemblies are coaxially arranged, and inner gear rings and outer gear rings on the adjacent bearing assemblies are meshed through gear assemblies.
The inner side and the outer side of the bottom of the lower outer ring are respectively provided with a third limiting part and a fourth limiting part;
the second limiting part and the fourth limiting part are respectively and rotatably connected with the upper part and the lower part of the secondary inner ring, and the first limiting part and the third limiting part are respectively and rotatably connected with the upper part and the lower part of the primary inner ring.
Wherein, a first main push roller is arranged between the top of the female inner ring and the upper pressing ring.
The first limiting portion is provided with a first main pushing rolling way, a first main pushing retainer is arranged in the first main pushing rolling way, a first main pushing roller is rotatably arranged on the first main pushing retainer, and a rolling surface of the first main pushing roller is in contact with the upper surface of the female inner ring and the lower surface of the first limiting portion.
Wherein, a main push roller II is arranged between the top of the sub-inner ring and the upper pressing ring.
The second limiting portion is provided with a second main pushing roller path, a second main pushing retainer is arranged in the second main pushing roller path, a second main pushing roller is rotatably arranged on the second main pushing retainer, and the rolling surface of the second main pushing roller is in contact with the upper surface of the inner sub-ring and the lower surface of the second limiting portion.
Wherein, an auxiliary pushing roller I is arranged between the bottom of the female inner ring and the lower outer ring.
The lower part of female inner circle is equipped with to assist and pushes away installation department one, assist push away the installation department one with it assists and pushes away mounting bracket one to be equipped with between the interior side surface of lower outer lane, assist and push away to rotate on the mounting bracket one and install and assist and push away roller one, assist the rolling surface that pushes away roller one with the lower part surface of female inner circle and the last surface contact of spacing portion three.
Wherein, an auxiliary pushing roller II is arranged between the bottom of the inner ring of the sub-ring and the lower outer ring.
The lower part of the sub-inner ring is provided with an auxiliary pushing installation part II, the auxiliary pushing installation part II is provided with an auxiliary pushing installation frame II between the outer side surface of the lower outer ring, the auxiliary pushing installation frame II is rotated and installed with an auxiliary pushing roller II, and the rolling surface of the auxiliary pushing roller II is in contact with the lower surface of the sub-inner ring and the upper surface of the limiting part IV.
Wherein, a radial roller I is arranged between the outer side of the female inner ring and the inner side of the outer ring.
The outer side of the female inner ring is provided with a first radial roller path, the first radial roller path is provided with a first radial retainer, the first radial retainer is rotatably provided with a first radial roller, and a rolling surface of the first radial roller is in contact with the inner side of the outer ring and the side surface of the first radial roller path.
Wherein a radial roller II is arranged between the inner side of the sub inner ring and the outer side of the outer ring.
The inner side of the sub-inner ring is provided with a radial roller path II, the radial roller path II is provided with a radial retainer II, a radial roller II is rotatably mounted on the radial retainer II, and the rolling surface of the radial roller II is in contact with the outer side of the outer ring and the side surface of the radial roller path II.
And the sub inner ring is provided with a sub cutter head flange connecting hole.
And the female inner ring is provided with a female cutter head flange connecting hole.
And the corresponding part of the upper pressing ring and the lower pressing ring is provided with an outer ring connecting hole for installing a connecting bolt.
Compared with the prior art, the shield machine cutter head driving slewing mechanism comprises a bearing assembly, wherein the bearing assembly comprises an upper outer ring, a lower outer ring, a sub inner ring and a mother inner ring assembly, the sub inner ring and the mother inner ring are respectively connected with the sub cutter head and the mother cutter head through flange structures, the outer ring and the upper outer ring and the lower outer ring are arranged to form an annular structure, the sub inner ring and the mother inner ring are respectively arranged on the outer side and the inner side of the outer ring, the sub inner ring and the mother inner ring can run at different rotating speeds or directions through a driving device, resistance encountered in the shield machine digging process can be reduced, and compared with three rows of roller bearings, the bearing assembly is more reasonable in spatial arrangement, the spatial arrangement of the sub cutter head and the mother cutter head is optimized, meanwhile, the bearing assembly is more light, and resistance encountered in the shield machine digging process is further reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is an overall axial cross-sectional view of the bearing assembly of the present invention;
FIG. 2 is an axial cross-sectional view of the bearing assembly of the present invention;
FIG. 3 is a schematic view of the cutter head structure;
FIG. 4 is an installation view of the bearing assembly and cutter head;
FIG. 5 is a schematic view of a plurality of sets of bearing assemblies;
in the figure, an upper outer ring 1, a lower outer ring 2, a sub inner ring 3, a female inner ring 4, an inner gear ring 5, an outer gear ring 6, a first limiting part 101, a second limiting part 102, a third limiting part 201, a fourth limiting part 202, a first main pushing roller 71, a second main pushing roller 72, a first auxiliary pushing roller 81, a second auxiliary pushing roller 82, a first radial roller 91, a second radial roller 92, a flange connecting hole 31 of a sub cutter head, a flange connecting hole 41 of a female cutter head, an outer ring connecting hole 10, a flange structure 11, a sub cutter head 12 and a female cutter head 13.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or be indirectly disposed on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, the meaning of a plurality of "or" a plurality "is two or more unless specifically limited otherwise.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings are only used for matching the disclosure of the present disclosure, and are not used for limiting the conditions of the present disclosure, so that the present disclosure is not limited to the technical essence, and any modifications of the structures, changes of the ratios, or adjustments of the sizes, can still fall within the scope of the present disclosure without affecting the function and the achievable purpose of the present disclosure.
Embodiments of the present invention are written in a progressive manner.
As shown in fig. 1 to 5, a shield machine cutter head driving swing mechanism includes a bearing assembly:
the bearing assembly comprises an outer ring, a sub inner ring 3 and a female inner ring 4;
the outer ring is of an annular structure and is formed by installing an upper outer ring 1 and a lower outer ring 2;
the inner side of the sub-inner ring 3 is rotatably arranged at the outer side of the outer ring, and the outer side of the female inner ring 4 is rotatably arranged at the inner side of the outer ring.
The working principle is as follows: the sub-inner ring 3 and the female inner ring 4 are respectively connected with the sub-cutter head 12 and the female cutter head 13 through the flange structure 11, the outer ring is formed by installing the upper outer ring 1 and the lower outer ring 2 and is of an annular structure, the sub-inner ring 3 and the female inner ring 4 are respectively installed on the outer side and the inner side of the outer ring, and the sub-inner ring 3 and the female inner ring 4 can run at different rotating speeds or directions through the driving device, so that the resistance encountered in the shield tunneling process can be reduced.
In order to enable the driving of the primary inner ring 3 and the secondary inner ring 4 to be more convenient, the inner side of the primary inner ring 4 is provided with an inner gear ring 5, the outer side of the primary inner ring 3 is provided with an outer gear ring 6, and the inner gear ring 5 and the outer gear ring 6 can be respectively in driving connection with a driving device through a gear assembly, so that the rotation of the primary inner ring 3 and the secondary inner ring 4 can be conveniently controlled, and the rotation of the primary cutter disc 12 and the secondary cutter disc 13 can be controlled.
The shield machine cutter head driving slewing mechanism can comprise more than two groups of bearing assemblies, wherein the bearing assemblies are coaxially arranged, and the inner gear ring 5 and the outer gear ring 6 on the adjacent bearing assemblies are meshed through the gear assemblies. The bearing assemblies are all the same in structure and different in radius and are coaxially arranged, the inner gear rings 5 and the outer gear rings 6 on the adjacent bearing assemblies are meshed through the gear assemblies, different rotating speeds of the different sub inner rings 3 and the different main inner rings 4 can be achieved through one driving device and the different gear assemblies, the whole equipment of the shield machine can be further lightened, and resistance encountered in the shield machine tunneling process is reduced.
In the tunneling operation, the driving device can be connected with a speed reducer to respectively control the rotation of the two groups of the plurality of pinion gears meshed with the inner gear ring 5 and the outer gear ring 6, so as to control the rotation of the sub cutter head 12 and the main cutter head 13, the sub inner ring 3 and the main inner ring 4 are in work-sharing cooperation through adjustable rotation speed control, the main inner ring 4 controls the main cutter head 13 to locally cut rocks at a faster rotation speed to damage the integral structure of the tunnel face so as to reduce the rock compactness of the tunnel face, the sub cutter head 12 is controlled by the sub inner ring 3 to cut the rocks at the rest part of the tunnel face at a constant speed, the two cutter heads are in work-sharing cooperation, so that the resistance in the cutting process is reduced, the rock breaking efficiency is improved, meanwhile, the energy consumption can be saved through the rotation speed adjusting function, and the tunneling flexibility of the cutter heads is improved.
The inner side and the outer side of the top of the upper outer ring 1 are respectively provided with a first limiting part 101 and a second limiting part 102, and the inner side and the outer side of the bottom of the lower outer ring 2 are respectively provided with a third limiting part 201 and a fourth limiting part 202;
the second limiting part 102 and the fourth limiting part 202 are rotatably connected with the upper part and the lower part of the sub-inner ring 3 respectively, and the first limiting part 101 and the third limiting part 201 are rotatably connected with the upper part and the lower part of the female inner ring 4 respectively.
The axial section of the upper outer ring 1 is T-shaped, the axial section of the lower outer ring 2 is inverted T-shaped, the axial section of an outer ring structure assembled by the upper outer ring 1 and the lower outer ring 2 is inverted I-shaped, and the second limiting part 102 and the fourth limiting part 202 of the lower outer ring 2 are shorter than the first limiting part 101 and the third limiting part 201, so that the connection between the sub inner ring 3 and the mother inner ring 4 and the flange structure 11 and the cutter head is facilitated.
The slewing mechanism can reduce the ferrule consumables of the corresponding bearing assembly of the super-large-diameter heading machine, the structural section shapes of the sub inner ring 3 and the main inner ring 4 can be symmetrical and the same, so that the processing process flow can be simplified, the sub inner ring 3 and the main inner ring 4 are integrally rectangular in section except for the roller path and the flange, and the slewing mechanism has high rigidity; the integral bearing assembly can be disassembled into four parts, which is beneficial to the disassembly and maintenance of the slewing bearing.
In order to reduce the rotation resistance of the female inner ring 4 in the bearing assembly, a main push roller I71 is arranged between the top of the female inner ring 4 and the upper pressing ring.
The method specifically comprises the following steps: the first limiting portion 101 is provided with a first main pushing rolling way, a first main pushing retainer is arranged in the first main pushing rolling way, a first main pushing roller 71 is rotatably arranged on the first main pushing retainer, and the rolling surface of the first main pushing roller 71 is in contact with the upper surface of the female inner ring 4 and the lower surface of the first limiting portion 101.
The structure of the first main pushing retainer can be a sectional retainer, and a plurality of roller structures are rotatably arranged on the retainer.
When the female inner ring 4 rotates relative to the outer ring, the first main thrust rollers 71 roll on the first main thrust raceways.
In order to better transmit the load and further reduce the rotation resistance of the sub-inner ring 3 in the bearing assembly, a second main pushing roller 72 is arranged between the top of the sub-inner ring 3 and the upper pressing ring.
Specifically, a second main pushing roller path is arranged on the second limiting portion 102, a second main pushing retainer is arranged in the second main pushing roller path, a second main pushing roller 72 is rotatably mounted on the second main pushing retainer, and a rolling surface of the second main pushing roller 72 is in contact with the upper surface of the sub inner ring 3 and the lower surface of the second limiting portion 102.
Similarly, the structure of the main push retainer II can be a sectional retainer, and a plurality of roller structures are rotatably arranged on the retainer.
When the sub-inner ring 3 rotates relative to the outer ring, the second main push rollers 72 roll on the second main push rolling paths.
In order to transmit load and further reduce the rotation resistance of the female inner ring 4 in the bearing assembly, an auxiliary pushing roller I81 is arranged between the bottom of the female inner ring 4 and the lower outer ring 2.
The method specifically comprises the following steps: the lower part of the female inner ring 4 is provided with a first auxiliary pushing installation part, a first auxiliary pushing installation frame is arranged between the first auxiliary pushing installation part and the inner side surface of the lower outer ring 2, a first auxiliary pushing roller 81 is rotatably installed on the first auxiliary pushing installation frame, and the rolling surface of the first auxiliary pushing roller 81 is in contact with the lower surface of the female inner ring 4 and the upper surface of the third limiting part 201.
The auxiliary pushing mounting frame I can be a sectional type retainer, and a plurality of roller structures are rotatably mounted on the retainer.
When the female inner ring 4 rotates relative to the outer ring, the auxiliary pushing roller I81 rolls on a raceway formed by the auxiliary pushing mounting part I and the limiting part III 201.
Similarly, in order to transmit the load and further reduce the rotation resistance of the sub-inner ring 3 in the bearing assembly, a second auxiliary pushing roller 82 is arranged between the bottom of the sub-inner ring 3 and the lower outer ring 2.
The method specifically comprises the following steps: the lower part of the sub-inner ring 3 is provided with an auxiliary pushing installation part II, an auxiliary pushing installation frame II is arranged between the auxiliary pushing installation part II and the outer side surface of the lower outer ring 2, an auxiliary pushing roller II 82 is rotatably installed on the auxiliary pushing installation frame II, and the rolling surface of the auxiliary pushing roller II 82 is in contact with the lower surface of the sub-inner ring 3 and the upper surface of the limiting part IV 202.
Similarly, the structure of the auxiliary pushing mounting frame II can be a sectional type retainer, and a plurality of roller structures are rotatably mounted on the retainer.
When the sub-inner ring 3 rotates relative to the outer ring, the second auxiliary pushing roller 82 rolls on a raceway formed by the second auxiliary pushing mounting part and the fourth limiting part 202.
In order to further optimize the structure of the bearing assembly, in order to transmit load and reduce the rotation resistance of the female inner ring 4, a radial roller I91 is arranged between the outer side of the female inner ring 4 and the inner side of the outer ring.
The outer side of the female inner ring 4 is provided with a first radial raceway, the first radial raceway is provided with a first radial retainer, a first radial roller 91 is rotatably mounted on the first radial retainer, and the rolling surface of the first radial roller 91 is in contact with the inner side of the outer ring and the side surface of the first radial raceway.
The first radial retainer can be a segmented retainer, and a plurality of roller structures are rotatably arranged on the retainer.
When the female inner ring 4 rotates relative to the outer ring, the first radial rollers 91 roll on the first radial raceways.
In order to further optimize the structure of the bearing assembly and reduce the rotation resistance of the sub-inner ring 3, a radial roller II 92 is arranged between the inner side of the sub-inner ring 3 and the outer side of the outer ring.
The method specifically comprises the following steps: the inner side of the sub-inner ring 3 is provided with a radial roller path II, the radial roller path II is provided with a radial retainer II, a radial roller II 92 is rotatably installed on the radial retainer II, and the rolling surface of the radial roller II 92 is in contact with the outer side of the outer ring and the side surface of the radial roller path II.
The second radial retainer can be a sectional retainer, and a plurality of roller structures are rotatably arranged on the retainer. When the sub-inner ring 3 rotates relative to the outer ring, the second radial rollers 92 roll on the second radial raceways.
A sub-cutter flange connecting hole 31 is formed in the sub-inner ring 3, and the sub-cutter flange connecting hole 31 is used for installing a cutter on the sub-inner ring 3 through a flange structure 11 and driving the sub-cutter 12 to rotate.
A female cutter head flange connecting hole 41 is formed in a female inner ring 4, and the female cutter head flange connecting hole 41 is used for installing a cutter head on the female inner ring 4 through a flange structure 11 and driving the female cutter head 13 to rotate.
The outer ring connecting hole 10 is formed in the position, opposite to the upper pressing ring and the lower pressing ring, of the upper pressing ring and the lower pressing ring, and is used for installing a connecting bolt, so that a bearing assembly is conveniently installed.
According to the invention, the main push roller, the auxiliary push roller and the radial roller are arranged around the outer ring, the main push roller I and the main push roller II can be arranged on the same vertical plane, the auxiliary push roller I and the auxiliary push roller I can be arranged on the same vertical plane, and the radial roller I and the radial roller II can be arranged on the same vertical plane, so that the arrangement can reduce the arrangement of a lubricating oil channel, improve the lubricating effect and improve the contact environment of the main push roller, the auxiliary push roller, the radial roller and other components.
The bearing assembly is provided with a sub inner ring 3 and a main inner ring 4 which are used for independently controlling a sub cutter head 12 and a main cutter head 13, wherein the sub inner ring 3 and the main inner ring 4 are connected with an outer ring through a main push roller, an auxiliary push roller and a radial roller, the main push roller, the auxiliary push roller and the radial roller are all sectional type retainers and are provided with a plurality of rollers, the main push roller, the auxiliary push roller and the radial roller are used as units for bearing axial force, radial force and overturning moment, the operation of each cutter head is respectively controlled, the integral propelling from local tunneling rock breaking to the peripheral propelling is realized, the expansion from the center to the periphery is realized, the gradable regulation of the rotating speed is realized, the energy consumption is saved, and the rock breaking efficiency is improved.
Meanwhile, the slewing mechanism of the invention also provides an implementation mode, which comprises at least two groups of bearing assemblies of the invention, the bearing assemblies with different radiuses are coaxially arranged, and the inner gear ring 5 and the outer gear ring 6 of the adjacent bearing assemblies are meshed through gears, so that different rotating speeds of different sub inner rings 3 and female inner rings 4 can be controlled by one driving device, the sub cutterhead 12 and the female cutterhead 13 are in work division and cooperation, the resistance in the cutting process is reduced, the rock breaking efficiency is improved, meanwhile, the energy consumption can be saved due to the function of rotating speed adjustment, and the flexibility of cutterhead tunneling is improved.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (19)
1. The utility model provides a shield machine knife dish drive rotation mechanism, includes bearing assembly, its characterized in that:
the bearing assembly comprises an outer ring, a sub inner ring (3) and a main inner ring (4);
the outer ring is of an annular structure and is formed by installing an upper outer ring (1) and a lower outer ring (2);
the inner side of the sub inner ring (3) is rotatably arranged on the outer side of the outer ring, and the outer side of the main inner ring (4) is rotatably arranged on the inner side of the outer ring.
2. The shield machine cutterhead drive and swing mechanism of claim 1, wherein:
the inner side of the female inner ring (4) is provided with an inner gear ring (5), and the outer side of the male inner ring (3) is provided with an outer gear ring (6).
3. The shield machine cutterhead drive swing mechanism of claim 2, wherein:
the slewing mechanism comprises more than two groups of bearing assemblies, the bearing assemblies are coaxially arranged, and the inner gear ring (5) and the outer gear ring (6) on the adjacent bearing assemblies are meshed through the gear assemblies.
4. The shield machine cutterhead driving rotating mechanism of claim 2 or 3, wherein:
the inner side and the outer side of the top of the upper outer ring (1) are respectively provided with a first limiting part (101) and a second limiting part (102), and the inner side and the outer side of the bottom of the lower outer ring (2) are respectively provided with a third limiting part (201) and a fourth limiting part (202);
the second limiting part (102) and the fourth limiting part (202) are respectively in rotatable connection with the upper part and the lower part of the sub inner ring (3), and the first limiting part (101) and the third limiting part (201) are respectively in rotatable connection with the upper part and the lower part of the female inner ring (4).
5. The shield machine cutterhead drive swing mechanism of claim 4, wherein:
a first main pushing roller (71) is arranged between the top of the female inner ring (4) and the upper pressing ring.
6. The shield machine cutterhead drive swing mechanism of claim 5, wherein:
the bearing is characterized in that a first main pushing rolling way is arranged on the first limiting part (101), a first main pushing retainer is arranged in the first main pushing rolling way, a first main pushing roller (71) is rotatably arranged on the first main pushing retainer, and a rolling surface of the first main pushing roller (71) is in contact with the upper surface of the first female inner ring (4) and the lower surface of the first limiting part (101).
7. The shield machine cutterhead drive swing mechanism of claim 6, wherein:
a second main push roller (72) is arranged between the top of the sub-inner ring (3) and the upper pressing ring.
8. The shield machine cutterhead drive swing mechanism of claim 7, wherein:
the second limiting portion (102) is provided with a second main pushing roller path, a second main pushing retainer is arranged in the second main pushing roller path, the second main pushing retainer is arranged on the second main pushing retainer and is rotatably provided with a second main pushing roller (72), and the rolling surface of the second main pushing roller (72) is in contact with the upper surface of the second sub-inner ring (3) and the lower surface of the second limiting portion (102).
9. The shield machine cutterhead drive swing mechanism of claim 8, wherein:
an auxiliary pushing roller I (81) is arranged between the bottom of the female inner ring (4) and the lower outer ring (2).
10. The shield machine cutterhead drive swivel mechanism of claim 9, wherein:
the lower part of female inner circle (4) is equipped with to assist and pushes away installation department one, assist push away the installation department one with it assists and pushes away installation frame one to be equipped with between the inboard surface of lower outer lane (2), assist and push away to rotate on the installation frame one and install and assist and push away roller (81), assist the rolling surface that pushes away roller (81) with the lower part surface of female inner circle (4) and the last surface contact of spacing three (201).
11. The shield machine cutterhead drive swivel mechanism of claim 10, wherein:
and a second auxiliary pushing roller (82) is arranged between the bottom of the inner sub-ring (3) and the lower outer ring (2).
12. The shield machine cutterhead drive swivel mechanism of claim 11, wherein:
the lower part of son inner circle (3) is equipped with to assist and pushes away installation department two, assist push away installation department two with be equipped with between the outside surface of lower outer lane (2) and assist and push away installation frame two, assist and push away to rotate on the installation frame two and install and assist and push away roller two (82), assist the rolling surface that pushes away roller two (82) with the lower part surface of son inner circle (3) and the last surface contact of spacing portion four (202).
13. The shield machine cutterhead drive swivel mechanism of claim 12, wherein:
a first radial roller (91) is arranged between the outer side of the female inner ring (4) and the inner side of the outer ring.
14. The shield machine cutterhead drive swivel mechanism of claim 13, wherein:
the outer side of the female inner ring (4) is provided with a first radial raceway, the first radial raceway is provided with a first radial retainer, and a first radial roller (91) is rotatably mounted on the first radial retainer.
15. The shield machine cutterhead drive swivel mechanism of claim 14, wherein:
a second radial roller (92) is arranged between the inner side of the sub inner ring (3) and the outer side of the outer ring.
16. The shield machine cutterhead drive swivel mechanism of claim 15, wherein:
and a second radial roller path is arranged on the inner side of the sub-inner ring (3), a second radial retainer is arranged on the second radial roller path, and a second radial roller (92) is rotatably mounted on the second radial retainer.
17. The shield machine cutterhead drive swivel mechanism of claim 16, wherein:
and the sub inner ring (3) is provided with a sub cutter head flange connecting hole (31).
18. The shield machine cutterhead driving and rotating mechanism of claim 17, wherein:
and a female cutter head flange connecting hole (41) is formed in the female inner ring (4).
19. The shield machine cutterhead drive swivel mechanism of claim 18, wherein:
and an outer ring connecting hole (10) is formed at the position, opposite to the upper pressing ring and the lower pressing ring, and is used for installing a connecting bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109514.5A CN114483779A (en) | 2022-01-28 | 2022-01-28 | Cutter head driving and rotating mechanism of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210109514.5A CN114483779A (en) | 2022-01-28 | 2022-01-28 | Cutter head driving and rotating mechanism of shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114483779A true CN114483779A (en) | 2022-05-13 |
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ID=81478229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210109514.5A Pending CN114483779A (en) | 2022-01-28 | 2022-01-28 | Cutter head driving and rotating mechanism of shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114483779A (en) |
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| JPS6145496U (en) * | 1984-08-24 | 1986-03-26 | 日立建機株式会社 | Bearings in shield tunneling machines |
| JPH07145699A (en) * | 1993-11-24 | 1995-06-06 | Nishimatsu Constr Co Ltd | Shielding construction method of tunnel in which sectional diameter is changed and shielding excavator thereof |
| US20020020685A1 (en) * | 2000-08-09 | 2002-02-21 | Demag Mobile Cranes Gmbh | Mobile crane with a releasable coupling connecting the substructure to the superstructure |
| EP2304255A2 (en) * | 2008-06-30 | 2011-04-06 | Nucor Corporation | Slew bearing system |
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