CN111734735A - Outer ring of main bearing of tunneling machine and main bearing of tunneling machine - Google Patents
Outer ring of main bearing of tunneling machine and main bearing of tunneling machine Download PDFInfo
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- CN111734735A CN111734735A CN202010631075.5A CN202010631075A CN111734735A CN 111734735 A CN111734735 A CN 111734735A CN 202010631075 A CN202010631075 A CN 202010631075A CN 111734735 A CN111734735 A CN 111734735A
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- main bearing
- outer ring
- heading machine
- raceway
- machine according
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- 230000005641 tunneling Effects 0.000 title abstract description 14
- 238000013016 damping Methods 0.000 claims description 7
- 230000013011 mating Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 2
- 230000009471 action Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 9
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- F16C19/22—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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- 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
- F16C19/52—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions
- F16C19/527—Bearings with rolling contact, for exclusively rotary movement with devices affected by abnormal or undesired conditions related to vibration and noise
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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
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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
- F16C33/583—Details of specific parts of races
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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
- F16C2352/00—Apparatus for drilling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a tunneling machine main bearing outer ring and a tunneling machine main bearing. This entry driving machine main bearing outer lane is applied to entry driving machine main bearing, and when the main bearing received huge impact force, buffer atress warp for the lasso raceway becomes the raceway that floats, with the atress of buffering the lasso raceway, improves the shock resistance of main bearing, makes the main bearing be difficult to produce the damage under the effect of external impact force, has improved entry driving machine main bearing's life and the security and the reliability of entry driving machine construction. The main bearing of the heading machine is not easy to damage under the action of external impact force, and has longer service life.
Description
Technical Field
The invention relates to the technical field of bearing structures, in particular to a main bearing outer ring of a heading machine. In addition, the invention also relates to a main bearing of the heading machine, which comprises the outer ring of the main bearing of the heading machine.
Background
A heading machine, that is, a tbm (tunnel Boring machine), is a novel and advanced tunnel construction machine integrating multiple functions of drilling, heading, supporting and the like, and has wide application in projects such as water conservancy and hydropower, mine exploitation, traffic, municipal administration, national defense and the like.
The heading machine utilizes a rotary cutter to perform excavation, the rotary cutter is arranged on a main bearing of the heading machine through a cutter head, a main bearing of the heading machine supports the cutter head, the heading power is transmitted to the cutter head, the forward and reverse heading power is provided for the cutter head, and meanwhile, the reaction force generated when the cutter head digs is borne.
However, the TBM is usually used for tunneling in a hard rock environment and is subjected to a large load, that is, the main bearing of the tunneling machine belongs to a typical low-speed heavy-load bearing, so that fatigue damage or abrasion is easily caused to the inner and outer races and the rollers of the main bearing of the tunneling machine during the construction process of the tunneling machine, which results in failure of the main bearing of the tunneling machine.
After the main bearing of the heading machine fails, the main bearing needs to be dismantled and replaced, and due to the limitation of construction environment, a vertical shaft hanging opening with enough size needs to be dug above a construction tunnel so as to dismantle and replace the main bearing through a vertical shaft space, thereby undoubtedly greatly increasing the construction time and economic loss of the heading machine.
Therefore, how to improve the service life of the main bearing of the heading machine and prevent the main bearing from failing in the construction process of the heading machine is a problem to be solved urgently by technical personnel in the field at present.
Disclosure of Invention
In view of the above, the present invention provides an outer ring of a main bearing of a heading machine, which has good impact resistance and can prevent a roller and a raceway of the main bearing of the heading machine from being easily damaged when being impacted by an external force.
The invention also aims to provide the main bearing of the heading machine, which comprises the outer ring of the main bearing of the heading machine, is not easy to damage under the action of external impact force and has longer service life.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides a tunnelling owner bearing inner race, includes split type outer lane body and lasso raceway, the lasso raceway is equipped with the raceway surface that is used for cooperating the contact with the roller of base bearing, the outer lane body be used for with lasso raceway complex fitting surface is equipped with the recess, the embedded resilient buffer that has that is equipped with of recess, buffer be used for with the contact of lasso raceway is in order to cushion the lasso raceway atress.
Preferably, the damping means comprises at least one disc spring.
Preferably, the number of the disc springs is at least two, and more than two disc springs are stacked in series.
Preferably, the big opening ends of two adjacent disk springs are arranged oppositely or oppositely.
Preferably, the combination forms of all the disc springs comprise a compound combination form which is superposed in the same direction and is arranged opposite to the large opening end and/or is arranged opposite to the large opening end.
Preferably, one end of the buffer device close to the notch of the groove is provided with a first gasket.
Preferably, the thickness of the first shim is greater than the overall deformation of the cushioning device.
Preferably, a second gasket is arranged between the buffer device and the groove bottom of the groove.
Preferably, the number of the grooves is at least three, and more than three grooves are uniformly distributed along the circumferential direction of the matching surface.
The main bearing of the heading machine comprises an inner ring, a first outer ring and a second outer ring, wherein a main thrust roller is arranged between the inner ring and the first outer ring, an auxiliary thrust roller is arranged between the inner ring and the second outer ring, and the second outer ring is the outer ring of any one of the main bearings of the heading machine.
According to the outer ring of the main bearing of the heading machine, the outer ring body and the ferrule raceway are arranged into a split structure, so that the raceway surface of the outer ring of the conventional integrated main bearing of the heading machine in the prior art is separated, a buffer device is conveniently arranged between the ferrule raceway and the outer ring body, and installation possibility and installation space are provided for the arrangement of the buffer device after the ferrule raceway is separated from the main body structure of the outer ring of the main bearing.
Because the buffer device has elasticity and can generate elastic deformation under the action of external force, when the outer ring of the main bearing of the heading machine is applied to the main bearing of the heading machine, when the main bearing of the heading machine is subjected to huge external impact force, the buffer device is stressed and deformed, so that the ferrule roller path becomes a floating roller path, the stress of the ferrule roller path can be buffered, the overall stress of the main bearing of the heading machine is reduced, the impact resistance of the main bearing of the heading machine can be greatly improved, the main bearing of the heading machine is not easy to damage under the action of the external impact force, and the service life of the main bearing of the heading machine and the safety and reliability of construction of the heading machine are improved.
The main bearing of the heading machine provided by the invention comprises the outer ring of the main bearing of the heading machine, is not easy to damage under the action of external impact force, and has a long service life.
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 an enlarged view of a portion of FIG. 1;
FIG. 3 is a cross-sectional view of the cushioning device of FIG. 2;
fig. 4 is a schematic structural view of the disc spring of fig. 3.
The reference numerals in fig. 1 to 4 are as follows:
the bearing ring roller path is 1, the buffer device is 2, the disc spring is 21, the first gasket is 22, the second gasket is 23, the inner ring is 3, the first outer ring is 4, the second outer ring is 5, the main thrust roller is 6, the main thrust retainer is 61, the auxiliary thrust roller is 7, the auxiliary thrust retainer is 71, the radial roller is 8, the radial retainer is 81, and the sealing ring is 9.
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 outer ring of the main bearing of the tunneling machine, which has good impact resistance and can prevent the roller and the raceway of the main bearing of the tunneling machine from being easily damaged when being impacted by external force. The invention also provides a main bearing of the heading machine, which comprises the outer ring of the main bearing of the heading machine, is not easy to damage under the action of external impact force and has longer service life.
Referring to fig. 1 to 4, 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 an enlarged view of a portion of FIG. 1; FIG. 3 is a cross-sectional view of the cushioning device of FIG. 2; fig. 4 is a schematic structural view of the disc spring of fig. 3.
The invention provides a main bearing outer ring of a tunneling machine, which comprises a split outer ring body and a ferrule raceway 1, wherein the ferrule raceway 1 is provided with a raceway surface which is in matched contact with a roller of a main bearing, the matching surface of the outer ring body, which is matched with the ferrule raceway 1, is provided with a groove, and a buffer device 2 which is in contact with the ferrule raceway 1 to buffer the stress of the ferrule raceway 1 is embedded in the groove.
The outer ring body in the invention mainly refers to a structure of the outer ring of the main bearing of the conventional excavator in the prior art except for the collar raceway 1.
The ferrule raceway 1 is a structure separated from the outer ring of the main bearing of the conventional excavator in the prior art so that the raceway surface is independent.
That is, the outer ring body and the ferrule raceway 1 are arranged in a split structure, so that the raceway surface of the outer ring of the main bearing of the conventional integrated excavator in the prior art is separated, the buffer device 2 is conveniently arranged between the ferrule raceway 1 and the outer ring body, that is, after the ferrule raceway 1 is separated from the main structure of the outer ring of the main bearing, installation possibility and installation space are provided for the arrangement of the buffer device 2.
Specifically, the matching surface of the outer ring body facing the ferrule raceway 1 is provided with a groove, the buffer device 2 is embedded in the groove, and the buffer device 2 is in contact with the ferrule raceway 1.
Because the buffer device 2 has elasticity and can elastically deform under the action of external force, when the outer ring of the main bearing of the heading machine is applied to the main bearing of the heading machine, when the main bearing of the heading machine is subjected to huge external impact force, the buffer device 2 is stressed and deformed, so that the ferrule raceway 1 becomes a floating raceway, the stress of the ferrule raceway 1 can be buffered, the overall stress of the main bearing of the heading machine is reduced, the impact resistance of the main bearing of the heading machine can be greatly improved, the main bearing of the heading machine is not easy to damage under the action of the external impact force, and the service life of the main bearing of the heading machine and the construction safety and reliability of the heading machine are improved.
It should be noted that the shape and number of the grooves are not specifically limited, and those skilled in the art can determine the shape and number according to the size of the main bearing of the heading machine and the requirement on the cushioning performance of the race raceway 1.
For example, the groove may be a plurality of independent single grooves, or may be an integral annular groove arranged along the mating surface of the outer ring body, and an integral annular elastic member is sleeved in the annular groove to buffer the ferrule raceway 1; the quantity of annular groove can be more than two, also promptly, sets up a plurality of rings of concentric at the fitting surface of outer lane body, still improves buffering effect.
When the grooves are a plurality of independent single grooves, it can be understood that the larger the diameter of the main bearing of the heading machine is, and the higher the requirement on the buffering performance of the ring raceway 1 is, the more the number of the grooves needs to be formed.
Preferably, on the basis of the above embodiment, the number of the grooves is at least two, and the two or more grooves are uniformly distributed along the circumferential direction of the mating surface of the outer ring body.
That is, the damper 2 is uniformly installed on a plane below the ferrule raceway 1.
The shape and size of the groove are not particularly limited in the present invention, and those skilled in the art can set the shape and size according to the specific shape and size of the buffer device 2, as long as the groove can be provided with the buffer device 2.
In view of the specific structure of the damping device 2, on the basis of the above-described embodiment, the damping device 2 includes at least one disc spring 21.
That is, in the present embodiment, the belleville springs 21 serve to cushion the ferrule tube.
The number of the disc springs 21 may be one or plural, and in consideration of a specific arrangement form when the number of the disc springs 21 is two or more, on the basis of the above embodiment, the number of the disc springs 21 is at least two, and two or more disc springs 21 are stacked in series.
That is, the present embodiment provides a cushioning effect to the ferrule raceway 1 by the combined action of the plurality of disc springs 21 arranged in a stacked manner, so that the cushioning effect is better.
Further, on the basis of the above-described embodiment, the large-open ends of two adjacent disc springs 21 are disposed to be opposed or apart.
It can be understood that the disk spring 21 is in the shape of a truncated cone disk and has a large opening end and a small opening end, and the disk spring 21 in this embodiment is arranged in an involutory manner, or the large opening end is arranged opposite to the large opening end, or the small opening end is arranged opposite to the small opening end, so as to further improve the buffering effect.
As shown in fig. 2, the number of the disc springs 21 is three, and the directions of the large opening ends of the three disc springs 21 are respectively from top to bottom: downward, upward and downward, so that the two disc springs 21 on the upper side form a large-opening end to a large-opening end, and the two disc springs 21 on the lower side form a small-opening end to a small-opening end.
In view of another stacking manner of the disc springs, on the basis of the above-described embodiment, the combination forms of all the disc springs 21 include a composite combination form in which the disc springs are stacked in the same direction and arranged opposite to the large open end and/or arranged opposite to the large open end.
Note that the same direction of the overlapping in the present invention means the overlapping in which the large opening ends of the disc springs 21 are oriented in the same direction. Obviously, when the big mouth ends are oppositely arranged or the big mouth ends are oppositely arranged, the orientation of the big mouth ends is opposite.
For example, as a preferred combination form, after at least two disc springs 21 are superposed in the same direction, the two disc springs are arranged opposite to the big mouth end of another disc spring 21 or another group of at least two disc springs 21 superposed in the same direction; or after the at least two disc springs 21 are superposed in the same direction, the big opening ends of the at least two disc springs 21 are arranged oppositely to the big opening ends of the other disc spring 21 or the other group of at least two disc springs 21 superposed in the same direction; or the composite combination form comprises three combinations of the same-direction superposition, the opposite arrangement of the large opening end and the opposite arrangement of the large opening end.
In addition, as shown in fig. 2 and 3, on the basis of the above embodiment, the buffer device 2 is provided with a first gasket 22 at an end near the notch of the groove.
That is, the first spacer 22 is located at the uppermost portion of the damper 2 for contacting the race track 1 to make the damper 2 more uniformly stressed.
It will be appreciated that the dimensions of the first shim 22 are less than or equal to the dimensions of the recess to enable the first shim 22 to sink into the recess.
In order to prevent the first gasket 22 from being displaced or escaping from the groove to fall between the mating surfaces of the ring raceway 1 and the outer ring body, the thickness of the first gasket 22 is larger than the entire deformation amount of the damper 2 on the basis of the above-described embodiment.
That is to say, in the present embodiment, the position of the first gasket 22 is defined by the thickness of the first gasket 22, so that the bottom of the first gasket 22 is always located in the groove, and the first gasket 22 is prevented from being separated from the groove.
Further, in view of stability of support of the buffer 2, on the basis of the above-described embodiment, a second spacer 23 is provided between the buffer 2 and the groove bottom of the groove.
The present embodiment does not limit the specific thickness of the second gasket 23.
In addition to the outer ring of the main bearing of the heading machine, the invention also provides a main bearing of the heading machine, which comprises an inner ring 3, a first outer ring 4, a second outer ring 5, a main thrust roller 6, an auxiliary thrust roller 7 and the like, wherein the main thrust roller 6 is arranged between the inner ring 3 and the first outer ring 4, and the auxiliary thrust roller 7 is arranged between the inner ring 3 and the second outer ring 5.
It should be noted that the main structures of the inner ring 3, the first outer ring 4, the second outer ring 5, the main thrust roller 6 and the auxiliary thrust roller 7 in this embodiment are respectively the same as the structures of the main bearing ring gear, the main bearing outer ring, the main bearing second outer ring 5, the main thrust roller 6 and the auxiliary thrust roller 7 of the conventional main bearing of the heading machine in the prior art, and are not described herein again.
The key point of the embodiment is that the second outer ring 5 is the outer ring of the main bearing of the heading machine disclosed in the embodiment, so as to buffer the stress of the main bearing of the heading machine, and enable the main bearing of the heading machine to have better impact resistance, so that the main bearing of the heading machine is not easy to be damaged under the action of external impact force, the service life of the main bearing of the heading machine is prolonged, and the safety and the reliability of the heading machine are improved.
As shown in fig. 1, the second outer ring 5 is the outer ring of the main bearing of the heading machine disclosed in the above embodiment, that is, the structure of the second outer ring 5 is the same as that of the outer ring of the main bearing of the heading machine described above.
In addition, please refer to the prior art for the structure of other parts of the main bearing of the heading machine, which is not described herein again. For example, the main thrust rollers 6 are provided between the inner ring 3 and the first outer ring 4 through the main thrust cage 61; the auxiliary thrust roller 7 is disposed between the inner ring 3 and the second outer ring 5 through an auxiliary thrust cage 71; a radial roller 8 is further arranged between the inner ring 3 and the second outer ring 5, and the radial roller 8 is arranged between the inner ring 3 and the second outer ring 5 through a radial retainer 81; sealing rings 9 and the like are arranged between the inner ring 3 and the first outer ring 4 and between the inner ring 3 and the second outer ring 5.
It is further noted that, in the present specification, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
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 outer ring of the main bearing of the heading machine and the main bearing of the heading machine provided by the invention are described in detail. 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. The utility model provides a tunnelling owner bearing inner race, its characterized in that includes split type outer lane body and lasso raceway (1), lasso raceway (1) is equipped with the raceway surface that is used for cooperating the contact with the roller of base bearing, the outer lane body be used for with lasso raceway (1) complex fitting surface is equipped with the recess, the embedded resilient buffer (2) that have that is equipped with of recess, buffer (2) be used for with lasso raceway (1) contact is in order to cushion lasso raceway (1) atress.
2. A main bearing cup according to claim 1 in which the damping means (2) comprises at least one belleville spring (21).
3. The main bearing outer ring of the heading machine according to claim 2, wherein the number of the disc springs (21) is at least two, and more than two disc springs (21) are stacked in series.
4. The main bearing outer ring of the heading machine according to claim 3, wherein the big mouth ends of two adjacent belleville springs (21) are arranged oppositely or away from each other.
5. The main bearing outer ring of the heading machine according to claim 3, wherein the combination of all the belleville springs (21) comprises a compound combination of a same-direction superposition and an opposite arrangement with the big mouth end and/or an opposite arrangement with the big mouth end.
6. A main bearing outer race of a heading machine according to any one of claims 1 to 5 wherein the end of the damping means (2) adjacent the notch of the groove is provided with a first shim (22).
7. The main bearing outer race of a heading machine according to claim 6, wherein the thickness of the first shim (22) is greater than the overall deflection of the damping means (2).
8. The main bearing outer ring of the heading machine according to claim 6, wherein a second gasket (23) is provided between the damping means (2) and the groove bottom of the groove.
9. The main bearing outer ring of the heading machine according to claim 6, wherein the number of the grooves is at least three, and more than three grooves are uniformly distributed along the circumferential direction of the mating surface.
10. A main bearing of a heading machine, comprising an inner ring (3), a first outer ring (4) and a second outer ring (5), wherein a main thrust roller (6) is arranged between the inner ring (3) and the first outer ring (4), and an auxiliary thrust roller (7) is arranged between the inner ring (3) and the second outer ring (5), characterized in that the second outer ring (5) is the outer ring of the main bearing of the heading machine according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631075.5A CN111734735A (en) | 2020-07-03 | 2020-07-03 | Outer ring of main bearing of tunneling machine and main bearing of tunneling machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010631075.5A CN111734735A (en) | 2020-07-03 | 2020-07-03 | Outer ring of main bearing of tunneling machine and main bearing of tunneling machine |
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| CN111734735A true CN111734735A (en) | 2020-10-02 |
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| CN202010631075.5A Pending CN111734735A (en) | 2020-07-03 | 2020-07-03 | Outer ring of main bearing of tunneling machine and main bearing of tunneling machine |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN114412918A (en) * | 2022-01-25 | 2022-04-29 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and assembling method thereof |
| CN114509262A (en) * | 2022-01-25 | 2022-05-17 | 中国铁建重工集团股份有限公司 | Acceleration test method for main bearing of heading machine |
| CN114776713A (en) * | 2022-04-08 | 2022-07-22 | 洛阳轴承研究所有限公司 | Shield machine main bearing, shield machine main bearing outer ring and machining method thereof |
| CN114962459A (en) * | 2022-06-30 | 2022-08-30 | 中国铁建股份有限公司 | Tunneling machine main bearing and matching processing method of outer ring raceway surface and thin-wall ring piece of tunneling machine main bearing |
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| CN104632883A (en) * | 2015-03-10 | 2015-05-20 | 洛阳新强联回转支承股份有限公司 | Three-row-roller type turntable bearing with axial pre-compression structure |
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Application publication date: 20201002 |