CN111927877A - Main bearing of heading machine and heading machine - Google Patents
Main bearing of heading machine and heading machine Download PDFInfo
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- CN111927877A CN111927877A CN202010795464.1A CN202010795464A CN111927877A CN 111927877 A CN111927877 A CN 111927877A CN 202010795464 A CN202010795464 A CN 202010795464A CN 111927877 A CN111927877 A CN 111927877A
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- arc
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- shaped ring
- heading machine
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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
- F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
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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
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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
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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
- F16C33/58—Raceways; Race rings
Abstract
The invention discloses a main bearing of a heading machine and the heading machine, wherein the main bearing of the heading machine comprises: the bearing outer ring comprises at least two first arc-shaped ring segments, and the first arc-shaped ring segments are detachably connected; the bearing inner ring comprises at least two second arc-shaped ring segments, and the second arc-shaped ring segments are detachably connected; the roller cage is a segmented cage. When parts of the heading machine need to be disassembled and transported in narrow environments such as underground tunnels, the bearing outer ring is disassembled into more than two first arc-shaped ring segments, the bearing inner ring is disassembled into more than two second arc-shaped ring segments, and each first arc-shaped ring segment and each second arc-shaped ring segment occupy small size and require small transportation space compared with the complete circular ring-shaped bearing outer ring and the complete circular ring-shaped bearing inner ring, so that the space and equipment requirements for transportation of the main bearing of the heading machine can be saved. The heading machine comprises the heading machine main bearing and is suitable for environments with limited transportation space, such as underground tunnels.
Description
Technical Field
The invention relates to the technical field of tunneling process equipment, in particular to a main bearing of a tunneling machine. In addition, the invention also relates to a heading machine comprising the main bearing of the heading machine.
Background
The development machine is widely applied to construction processes of urban subway tunnels, river-crossing highway tunnels, urban sewage discharge pipelines, river-crossing water or gas pipelines and the like in China, and has the advantages of high automation degree, labor saving, high construction speed, capability of forming holes at one time, no influence of weather, capability of controlling ground settlement during excavation, reduction of influence on ground buildings, no influence on ground traffic during underwater excavation and the like.
The main bearing of the heading machine is a key part of the main drive of the heading machine, is arranged on a main drive system of the heading machine, is mainly used for supporting the cutter head and ensuring that the cutter head rotates to break rocks, provides forward and reverse heading power for the cutter head, and simultaneously bears the reaction force generated when the cutter head of the heading machine digs soil.
When the development machine is adopted to carry out construction in narrow space environments such as an underground tunnel, the disassembly, transportation, installation and the like of parts of the development machine are often involved, however, the parts such as a main bearing with a larger diameter are difficult to transport due to the limitation of the narrow space of the construction environment, and huge obstacles are caused to the disassembly and the installation of the main drive of the development machine.
Therefore, how to provide a main bearing of a heading machine convenient for transportation is a problem to be solved urgently by the technical personnel in the field at present.
Disclosure of Invention
In view of the above, the invention aims to provide a main bearing of a heading machine, which is convenient to transport.
Another object of the present invention is to provide a heading machine including the above main bearing of the heading machine, which is suitable for an environment with limited transportation space such as an underground tunnel.
In order to achieve the above purpose, the invention provides the following technical scheme:
a main bearing for a heading machine comprising:
the bearing outer ring comprises at least two first arc-shaped ring segments, and the first arc-shaped ring segments are detachably connected;
the bearing inner ring comprises at least two second arc-shaped ring segments, and the second arc-shaped ring segments are detachably connected;
the roller cage comprises rollers and a cage, wherein the cage is a segmented cage.
Preferably, the bearing outer ring comprises a first outer ring and a second outer ring, which are arranged along the axial direction;
the first arcuate ring segment comprises:
at least two third circular arc-shaped ring segments for forming the first outer ring;
and each joint of the third arc-shaped ring segment and each joint of the fourth arc-shaped ring segment are staggered, and the third arc-shaped ring segment is detachably connected with the fourth arc-shaped ring segment.
Preferably, two adjacent third circular arc-shaped ring sections are detachably connected with the fourth circular arc-shaped ring section corresponding to the joint of the third circular arc-shaped ring section and the fourth circular arc-shaped ring section.
Preferably, the third circular arc-shaped ring segment and the fourth circular arc-shaped ring segment are connected through a first bolt.
Preferably, one of the first outer ring and the second outer ring is provided with a first male spigot, and the other is provided with a first female spigot for being matched with and limited by the first male spigot.
Preferably, one of the first outer ring and the second outer ring is provided with a first positioning pin, and the other is provided with a first pin hole for aligning and matching with the first positioning pin.
Preferably, the bearing inner ring comprises a first inner ring and a second inner ring which are arranged along the axial direction;
the second arcuate ring segment includes:
at least two fifth circular arc-shaped ring segments for forming the first inner ring;
and each joint of the fifth arc-shaped ring segment and each joint of the sixth arc-shaped ring segment are arranged in a staggered manner, and the fifth arc-shaped ring segment is detachably connected with the sixth arc-shaped ring segment.
Preferably, one of the first inner ring and the second inner ring is provided with a second male spigot, and the other is provided with a second female spigot for matching and limiting with the second male spigot; and/or the presence of a gas in the gas,
one of the first inner ring and the second inner ring is provided with a second positioning pin, and the other one of the first inner ring and the second inner ring is provided with a second pin hole used for aligning and matching with the second positioning pin.
Preferably, each joint of the third arc-shaped ring segment, each joint of the fourth arc-shaped ring segment, each joint of the fifth arc-shaped ring segment, and each joint of the sixth arc-shaped ring segment is provided with a sealant.
A heading machine comprises a main bearing, wherein the main bearing is any one of the main bearings of the heading machine.
According to the main bearing of the heading machine, the first arc-shaped ring segments and the second arc-shaped ring segments are detachable, so that when parts of the heading machine need to be detached and transported in narrow environments such as an underground tunnel, the outer ring of the bearing can be detached into more than two first arc-shaped ring segments, and the inner ring of the bearing can be detached into more than two second arc-shaped ring segments.
Obviously, compared with the complete circular ring-shaped bearing outer ring and the complete circular ring-shaped bearing inner ring, each separated first circular arc-shaped ring segment and each separated second circular arc-shaped ring segment occupy small volume and require small transportation space, so that the space and equipment requirements required by the transportation of the main bearing of the heading machine can be saved, and the main bearing of the heading machine can be suitable for the narrow underground tunnel environment in which the heading machine is constructed.
The heading machine provided by the invention comprises the main bearing of the heading machine, so that the heading machine is suitable for environments with limited transportation space, such as underground tunnels.
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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Figure 1 is a partial cross-sectional view of a main bearing of a heading machine according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a first outer ring and a second outer ring of the main bearing of the heading machine shown in fig. 1.
The reference numerals in fig. 1 and 2 are as follows:
the bearing comprises a bearing outer ring 1, a bearing inner ring 11, a first outer ring 111, a third arc-shaped ring segment 12, a second outer ring 121, a fourth arc-shaped ring segment 2, a bearing inner ring 21, a first inner ring 22, a second inner ring 3, a first bolt 4, a first positioning pin 4, a main pushing roller 5, a main pushing retainer 51, an auxiliary pushing roller 6, an auxiliary pushing retainer 61, a radial roller 7, a radial retainer 71 and a butt joint 8.
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.
The core of the invention is to provide the device. The main bearing of the heading machine is convenient to transport. The invention also provides a heading machine comprising the main bearing of the heading machine, which is suitable for environments with limited transportation space, such as underground tunnels.
Referring to fig. 1-2, fig. 1 is a partial sectional view of a main bearing of a heading machine according to an embodiment of the present invention; fig. 2 is a schematic connection diagram of a first outer ring and a second outer ring of the main bearing of the heading machine shown in fig. 1.
The invention provides a main bearing of a heading machine, which mainly comprises a bearing outer ring 1, a bearing inner ring 2, a roller, a retainer and the like.
Specifically, the bearing outer ring 1 comprises at least two first arc-shaped ring segments, and the first arc-shaped ring segments are detachably connected; the bearing inner ring 2 comprises at least two second arc-shaped ring segments which are detachably connected; the retainer is a segmented retainer.
That is, in the present embodiment, the two or more first arc-shaped ring segments are connected to form the integral annular bearing outer ring 1, and the two or more second arc-shaped ring segments are connected to form the integral annular bearing inner ring 2.
Because the first arc-shaped ring sections and the second arc-shaped ring sections are detachable, when parts of the heading machine need to be detached and transported in narrow environments such as an underground tunnel, the bearing outer ring 1 can be detached into more than two first arc-shaped ring sections, and the bearing inner ring 2 can be detached into more than two second arc-shaped ring sections.
Obviously, compared with the complete circular ring-shaped bearing outer ring 1 and the complete circular ring-shaped bearing inner ring 2, the first circular arc-shaped ring segment and the second circular arc-shaped ring segment which are separated occupy small volume and require small transportation space, so that the space and equipment requirements required by the transportation of the main bearing of the heading machine can be saved, and the main bearing of the heading machine can be suitable for the narrow underground tunnel environment in which the heading machine is constructed.
It should be noted that the retainer can be a segmented retainer as is conventional in the prior art, so as to ensure that the main bearing of the heading machine is more thoroughly disassembled.
In addition, in order to facilitate the connection between the first circular arc-shaped ring segments, on the basis of the above embodiment, the bearing outer ring 1 includes a first outer ring 11 and a second outer ring 12, and the first outer ring 11 and the second outer ring 12 are axially arranged; the first arc-shaped ring segment comprises at least two third arc-shaped ring segments 111 and at least two fourth arc-shaped ring segments 121, the at least two third arc-shaped ring segments 111 are used for forming the first outer ring 11, and the at least two fourth arc-shaped ring segments 121 are used for forming the second outer ring 12; the joints 8 of the third circular arc-shaped ring segment 111 and the joints 8 of the fourth circular arc-shaped ring segment 121 are staggered (as shown in fig. 2), and the third circular arc-shaped ring segment 111 and the fourth circular arc-shaped ring segment 121 are detachably connected.
That is to say, in the embodiment, the bearing outer ring 1 is divided into two outer rings, that is, the first outer ring 11 and the second outer ring 12 are divided into at least two arc-shaped ring segments, that is, the third arc-shaped ring segment 111 and the fourth arc-shaped ring segment 121, respectively, in the respective circumferential directions, the butt joint 8 of the third arc-shaped ring segment 111 and the butt joint 8 of the fourth arc-shaped ring segment 121 are arranged in a staggered manner, and by using the connection between the third arc-shaped ring segment 111 and the fourth arc-shaped ring segment 121, the formation of the two or more third arc-shaped ring segments 111 into a circular ring whole, that is, the first outer ring 11, and the formation of the two or more fourth arc-shaped ring segments 121 into a circular ring whole, that is, the second outer ring 12, and the first outer.
In consideration of the stability of the connection between the third circular arc-shaped ring segment 111 and the fourth circular arc-shaped ring segment 121, on the basis of the above embodiment, two adjacent third circular arc-shaped ring segments 111 are detachably connected with the fourth circular arc-shaped ring segment 121 corresponding to the joint 8 of the two third circular arc-shaped ring segments.
That is to say, two third circular arc ring segments 111 which are butted with each other are detachably connected with the same fourth circular arc ring segment 121; two opposite fourth arc-shaped ring sections 121 are detachably connected with the same third arc-shaped ring section 111 respectively.
It can be seen that this may make the connection of the third circular arc shaped ring segment 111 with the fourth circular arc shaped ring segment 121 more secure.
It should be noted that, in the present invention, the detachable connection manner between the third circular arc-shaped ring segment 111 and the fourth circular arc-shaped ring segment 121 is not particularly limited as long as the detachable connection therebetween can be achieved.
Preferably, on the basis of the above embodiment, the third circular arc-shaped ring segment 111 and the fourth circular arc-shaped ring segment 121 are connected by the first bolt 3.
It should be noted that, in this embodiment, the number of the first bolts 3 between any one third circular arc-shaped ring segment 111 and the fourth circular arc-shaped ring segment 121 connected thereto is not limited, and preferably, two third circular arc-shaped ring segments 111 in butt joint are detachably connected to the same fourth circular arc-shaped ring segment 121 through at least two first bolts 3, respectively; the two opposite fourth arc-shaped ring segments 121 are detachably connected with the same third arc-shaped ring segment 111 through at least two first bolts 3.
Further, in consideration of the problem of radial and axial restraint of the first outer ring 11 and the second outer ring 12, on the basis of the above-described embodiment, one of the first outer ring 11 and the second outer ring 12 is provided with a first male end, and the other is provided with a first female end for restraining in cooperation with the first male end.
That is to say, in the present embodiment, the first male end and the first female end are matched to quickly realize the radial limit and the axial limit of the first outer ring 11 and the second outer ring 12, so as to facilitate the assembly.
Further, in consideration of the problem of circumferential spacing between the first outer ring 11 and the second outer ring 12, on the basis of the above-described embodiment, one of the first outer ring 11 and the second outer ring 12 is provided with the first positioning pin 4, and the other is provided with the first pin hole for aligning and fitting with the first positioning pin 4.
That is, in the present embodiment, the first positioning pin 4 is limited by the first pin hole, so as to limit the circumferential positions of the first outer ring 11 and the second outer ring 12, and prevent the second outer ring 12 opposite to the first outer ring 11 from rotating.
In this embodiment, the number of pairs of the first positioning pin 4 and the first pin hole is not specifically limited, and can be set by a person skilled in the art according to actual needs.
In addition, in order to facilitate the connection between the second circular arc-shaped ring segments, on the basis of the above-described embodiment, the bearing inner ring 2 includes the first inner ring 21 and the second inner ring 22, and the first inner ring 21 and the second inner ring 22 are arranged in the axial direction; the second arc-shaped ring segments comprise at least two fifth arc-shaped ring segments and at least two sixth arc-shaped ring segments, the at least two fifth arc-shaped ring segments are used for forming the first inner ring 21, and the at least two sixth arc-shaped ring segments are used for forming the second inner ring 22; and the joints of the fifth arc-shaped ring segment and the joints of the sixth arc-shaped ring segment are staggered, and the fifth arc-shaped ring segment is detachably connected with the sixth arc-shaped ring segment.
That is to say, like the bearing outer ring 1, in this embodiment, the bearing inner ring 2 is divided into two inner rings, that is, the first inner ring 21 and the second inner ring 22, and the first inner ring 21 and the second inner ring 22 are divided into at least two arc-shaped ring segments, that is, a fifth arc-shaped ring segment and a sixth arc-shaped ring segment, respectively, along respective circumferential directions, and a butt joint of the fifth arc-shaped ring segment and a butt joint of the sixth arc-shaped ring segment are arranged in a staggered manner, and by using the connection between the fifth arc-shaped ring segment and the sixth arc-shaped ring segment, it is finally achieved that the two or more fifth arc-shaped ring segments form a circular ring whole, that is, the first inner ring 21, and the two or more sixth arc-shaped ring segments form a circular ring whole, that is, the second inner ring 22, and the.
Preferably, the two butted fifth arc-shaped ring segments are detachably connected with the same sixth arc-shaped ring segment respectively; the two sixth arc-shaped ring segments which are butted with each other are detachably connected with the same fifth arc-shaped ring segment respectively.
The fifth circular arc-shaped ring section and the sixth circular arc-shaped ring section are preferably connected through a second bolt.
It should be noted that, in this embodiment, the number of the second bolts between any one fifth circular arc-shaped ring segment and the sixth circular arc-shaped ring segment connected to the fifth circular arc-shaped ring segment is not limited, and preferably, two fifth circular arc-shaped ring segments that are butted with each other are detachably connected to the same sixth circular arc-shaped ring segment through at least two second bolts; the two sixth arc-shaped ring segments which are butted with each other are detachably connected with the same fifth arc-shaped ring segment through at least two second bolts.
Further, in consideration of the problem of radial and axial position limitation of the first inner ring 21 and the second inner ring 22, on the basis of the above-described embodiment, one of the first inner ring 21 and the second inner ring 22 is provided with a second male end stop, and the other is provided with a second female end stop for position limitation in cooperation with the second male end stop.
That is to say, the present embodiment quickly achieves radial and axial position limitation of the first inner ring 21 and the second inner ring 22 by the cooperation of the second male and female spigots, which facilitates assembly.
Further, in consideration of the problem of circumferential position limitation between the first inner ring 21 and the second inner ring 22, on the basis of the above-described embodiment, one of the first inner ring 21 and the second inner ring 22 is provided with a second positioning pin, and the other is provided with a second pin hole for aligning and matching with the second positioning pin.
That is to say, the present embodiment limits the circumferential positions of the first inner ring 21 and the second inner ring 22 by the fitting limit of the second positioning pin and the second pin hole, and avoids the rotation of the second inner ring 22 relative to the first inner ring 21, and the like.
In this embodiment, the number of pairs of the second positioning pin and the second pin hole is not specifically limited, and can be set by a person skilled in the art according to actual needs.
In view of the sealing performance of the joints 8 of the circular arc-shaped ring segments, on the basis of the above embodiment, the joints 8 of the third circular arc-shaped ring segment 111, the joints 8 of the fourth circular arc-shaped ring segment 121, the joints of the fifth circular arc-shaped ring segment, and the joints of the sixth circular arc-shaped ring segment are provided with sealing glue.
That is, in the present embodiment, the joints 8 of the third circular arc-shaped ring segment 111, the joints 8 of the fourth circular arc-shaped ring segment 121, the joints of the fifth circular arc-shaped ring segment, and the joints of the sixth circular arc-shaped ring segment are sealed by the sealant; obviously, during disassembly, the joints 8 of the third arc-shaped ring segment 111, the joints 8 of the fourth arc-shaped ring segment 121, the joints of the fifth arc-shaped ring segment, and the joints of the sixth arc-shaped ring segment can be separated by heat fusion or external force.
In consideration of the specific arrangement of the rollers and the retainer of the main bearing of the heading machine, as a preferable scheme, on the basis of the above embodiment, as shown in fig. 1, an auxiliary pushing roller 6 and an auxiliary pushing retainer 61 are arranged between the second inner ring 22 and the second outer ring 12; between the first outer ring 11 and the first inner ring 21 are provided:
a main push roller 5 and a main push cage 51;
In addition to the main bearing of the heading machine, the invention also provides a heading machine including the main bearing of the heading machine disclosed in the above embodiment, and the structure of other parts of the heading machine refers to the prior art and is not described herein again.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The main bearing of the heading machine and the heading machine provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. A main bearing of a heading machine is characterized by comprising:
the bearing outer ring (1) comprises at least two first arc-shaped ring segments, and the first arc-shaped ring segments are detachably connected;
the bearing inner ring (2) comprises at least two second arc-shaped ring segments which are detachably connected;
the roller cage comprises rollers and a cage, wherein the cage is a segmented cage.
2. Main bearing for a heading machine according to claim 1, characterized in that said outer bearing ring (1) comprises a first outer ring (11) and a second outer ring (12), both axially arranged;
the first arcuate ring segment comprises:
at least two third circular arc-shaped ring segments (111) for forming the first outer ring (11);
the at least two fourth arc-shaped ring segments (121) are used for forming the second outer ring (12), joints (8) of the third arc-shaped ring segments (111) and joints (8) of the fourth arc-shaped ring segments (121) are arranged in a staggered mode, and the third arc-shaped ring segments (111) and the fourth arc-shaped ring segments (121) are detachably connected.
3. The main bearing of the heading machine according to claim 2, wherein two adjacent third circular arc ring segments (111) are detachably connected to the fourth circular arc ring segment (121) corresponding to the joint (8) of the two.
4. The main bearing of the heading machine according to claim 2, wherein the third circular arc ring segment (111) and the fourth circular arc ring segment (121) are connected by a first bolt (3).
5. The main bearing of the heading machine according to claim 2, wherein one of the first outer ring (11) and the second outer ring (12) is provided with a first male spigot, and the other is provided with a first female spigot for cooperating with the first male spigot for limiting.
6. Main bearing for a heading machine according to claim 2, wherein one of said first outer ring (11) and said second outer ring (12) is provided with a first positioning pin (4) and the other is provided with a first pin hole for aligning engagement with said first positioning pin (4).
7. Heading machine main bearing according to any of claims 2-6, wherein the bearing inner ring (2) comprises a first inner ring (21) and a second inner ring (22), both arranged axially;
the second arcuate ring segment includes:
at least two fifth circular arc-shaped ring segments for forming the first inner ring (21);
and each joint of the fifth arc-shaped ring segment and each joint of the sixth arc-shaped ring segment are arranged in a staggered manner, and the fifth arc-shaped ring segment is detachably connected with the sixth arc-shaped ring segment.
8. The main bearing of the heading machine according to claim 7, wherein one of the first inner ring (21) and the second inner ring (22) is provided with a second male spigot, and the other one is provided with a second female spigot for cooperating with the second male spigot for limiting; and/or the presence of a gas in the gas,
one of the first inner ring (21) and the second inner ring (22) is provided with a second positioning pin, and the other one of the first inner ring and the second inner ring is provided with a second pin hole used for aligning and matching with the second positioning pin.
9. The main bearing of the heading machine according to claim 7, wherein each joint (8) of the third circular arc-shaped ring segment (111), each joint (8) of the fourth circular arc-shaped ring segment (121), each joint of the fifth circular arc-shaped ring segment and each joint of the sixth circular arc-shaped ring segment are provided with a sealant.
10. A heading machine comprising a main bearing, wherein the main bearing is a heading machine main bearing as claimed in any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010795464.1A CN111927877A (en) | 2020-08-10 | 2020-08-10 | Main bearing of heading machine and heading machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010795464.1A CN111927877A (en) | 2020-08-10 | 2020-08-10 | Main bearing of heading machine and heading machine |
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| CN111927877A true CN111927877A (en) | 2020-11-13 |
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| CN202010795464.1A Pending CN111927877A (en) | 2020-08-10 | 2020-08-10 | Main bearing of heading machine and heading machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114029711A (en) * | 2021-12-08 | 2022-02-11 | 中国铁建重工集团股份有限公司 | Bearing ring assembly machining method |
| CN114135576A (en) * | 2021-12-13 | 2022-03-04 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and machining method of main bearing outer ring assembly |
| CN114962466A (en) * | 2022-06-30 | 2022-08-30 | 中国铁建重工集团股份有限公司 | Shaft-drive type slewing bearing structure convenient to assemble and disassemble, assembling method and working performance detection method thereof |
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| CN114029711A (en) * | 2021-12-08 | 2022-02-11 | 中国铁建重工集团股份有限公司 | Bearing ring assembly machining method |
| CN114029711B (en) * | 2021-12-08 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Bearing ring assembly machining method |
| CN114135576A (en) * | 2021-12-13 | 2022-03-04 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and machining method of main bearing outer ring assembly |
| CN114135576B (en) * | 2021-12-13 | 2023-10-31 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and processing method of main bearing outer ring assembly |
| CN114962466A (en) * | 2022-06-30 | 2022-08-30 | 中国铁建重工集团股份有限公司 | Shaft-drive type slewing bearing structure convenient to assemble and disassemble, assembling method and working performance detection method thereof |
| CN114962466B (en) * | 2022-06-30 | 2023-11-10 | 中国铁建重工集团股份有限公司 | Easy-to-assemble and disassemble shaft-driven slewing bearing structure, assembling method and working performance detection method thereof |
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