CN210423725U - Shield constructs quick-witted slip casting bearing package and puts with automatic compensation function - Google Patents
Shield constructs quick-witted slip casting bearing package and puts with automatic compensation function Download PDFInfo
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- CN210423725U CN210423725U CN201921455585.0U CN201921455585U CN210423725U CN 210423725 U CN210423725 U CN 210423725U CN 201921455585 U CN201921455585 U CN 201921455585U CN 210423725 U CN210423725 U CN 210423725U
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Abstract
The utility model discloses a shield constructs quick-witted slip casting bearing package and puts with automatic compensation function, including bearing installation casing, bearing, spring mounting panel, spring, locating pin, quiet ring, rotating ring and rotation axis, the bearing assembles in the hole of bearing installation casing; one end of the rotating shaft penetrates through the bearing and is fixed with the inner ring of the bearing; the static ring and the movable ring are arranged between the hole wall of the inner hole of the bearing installation shell and the rotating shaft in a relatively sealed mode, the spring installation plate is fixed on the bearing installation shell, and two ends of the spring are fixed on the spring installation plate and one side face, away from the movable ring, of the static ring through the positioning pins respectively. This bearing package is put under the sealed condition that became invalid of rotating ring outer seal circle, and the terminal surface of quiet ring and rotating ring plays main sealed effect to constantly compensate through the quiet ring fine setting of spring drive with the wearing and tearing volume to between rotating ring and the quiet ring, make quiet ring tightly laminate on the rotating ring terminal surface all the time, thereby guaranteed good sealed effect, can realize the automatic compensation function again.
Description
Technical Field
The utility model belongs to the technical field of shield structure machine equipment, specific saying so relates to a bearing contract device, especially relates to a shield constructs quick-witted slip casting bearing contract device with automatic compensation function.
Background
The shield constructs among quick-witted slip casting bearing package is used for shield structure machine slip casting system, and its main function is as follows: 1) the grouting stirring shaft is supported, the grouting bearing packages are installed at two ends of the grouting box body, the stirring shaft is installed on a bearing in the bearing through matching, and the stirring shaft starts to rotate through the driving of the grouting stirring motor, so that the grout in the grouting box body is prevented from being solidified; 2) sealing performance, at the rotatory in-process of (mixing) shaft, because (mixing) shaft both ends are eccentric or (mixing) shaft are crooked, can lead to the thick liquid in the box to flow, and install the sealing washer in the bearing contract, when (mixing) shaft is eccentric or less crooked, the compression capacity of sealing washer can compensate because of the clearance that eccentric or crooked arouse, and then guarantee the sealing performance of slip casting box.
The existing grouting bearing package has the following structure: 1) 1 bearing and a plurality of sealing rings are arranged in the bearing; 2)2 bearings and a plurality of sealing rings are arranged in the bearing. The above structure has the following drawbacks: 1) the stirring shaft is inevitably eccentric and bent in the rotation process, the supporting rigidity of the stirring shaft is insufficient due to the fact that 1 bearing is installed in the bearing, the eccentricity of the stirring shaft is too large after long-time operation, and gaps caused by the overlarge eccentricity of the stirring shaft cannot be compensated after seal abrasion, so that slurry leakage of a bearing pack is caused; 2)2 bearing support can cause the (mixing) shaft to have 4 strong points at the box both ends, can lead to the (mixing) shaft "not hard" because of both ends bearing package is eccentric when the (mixing) shaft rotates, and long-time operation can cause sealing washer eccentric wear, bearing to scatter the frame, the (mixing) shaft card is dead, bearing package leaks thick liquid etc.. If the bearing package generates slurry leakage, the tunnel is seriously polluted, and the later cleaning of the tunnel is difficult; the bearing meets and can lead to thick liquid to flow out in a large number when leaking thick liquid seriously, can't guarantee to shield structure section of jurisdiction annular gap's packing, causes the earth's surface to subside etc. and seriously dangerous, causes the construction progress slowly simultaneously, increases construction cost scheduling problem.
Disclosure of Invention
In order to overcome the defects, the utility model provides a shield constructs quick-witted slip casting bearing contract device with automatic compensation function can effectually compensate the sealing washer wearing and tearing volume, also can carry out the self-adaptation to (mixing) shaft eccentricity and crooked adjustment simultaneously to realize improving bearing package life, reinforcing bearing package operating stability and leakproofness's purpose.
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a shield tunneling machine grouting bearing package device with an automatic compensation function comprises a bearing installation shell, a bearing, a spring installation plate, a spring, a positioning pin, a static ring, a dynamic ring and a rotating shaft, wherein the bearing installation shell is provided with an inner hole with an opening at one end, the bearing is assembled in the inner hole, and an outer ring of the bearing is fixed with the hole wall of the inner hole; one end of the rotating shaft penetrates through the bearing and is fixed with the inner ring of the bearing; the static ring and the movable ring are oppositely and hermetically arranged between the hole wall of the inner hole of the bearing installation shell and the rotating shaft, the inner ring of the movable ring is hermetically and fixedly connected with the rotating shaft, and the outer ring of the movable ring is provided with a first sealing ring which is hermetically connected with the hole wall of the inner hole of the bearing installation shell; a second sealing ring is arranged on the outer ring of the static ring and is in sealing connection with the hole wall of the inner hole of the bearing installation shell, and a third sealing ring is arranged on the inner ring of the static ring and is in sealing connection with the outer side surface of the rotating shaft; the spring mounting panel is fixed in on the bearing installation casing, and be located quiet ring is kept away from a side of rotating ring is off-plate, the both ends of spring are fixed in through the locating pin respectively the spring mounting panel with quiet ring is kept away from on a side of rotating ring.
As a further improvement, the bore radius of the bearing mounting housing is the stairstepping grow from inside to outside, the bearing is mounted in the second ladder position of this bore, is fixed with the gland that the cross-section is the L type on the lateral wall of the second ladder of this bore and third ladder in addition, and the inner of this gland compresses tightly and is fixed in on the side of the outer lane of bearing.
As a further improvement of the present invention, the spring mounting plate and the gland are fixed to the gland through the same bolt.
As a further improvement, the locating pin is assembled with the spring mounting plate through interference fit, and the spring is positioned through the locating pin bulge.
As a further improvement of the utility model, be equipped with the grease injecting hole on the bearing installation casing.
As a further improvement of the utility model, the inner circle of the movable ring and the rotating shaft are fixedly connected through a flat key and an O-shaped sealing ring in a sealing way.
The utility model has the advantages that: the shield machine grouting bearing package device with the automatic compensation function has the automatic compensation sealing ring abrasion function, can adapt to eccentricity or bending when a stirring shaft is eccentric or bent, and can compensate the stirring shaft when a gap is too large, so that the sealing performance of a bearing is guaranteed, the service life of the bearing is prolonged, and the running stability of the bearing is enhanced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a partially enlarged schematic view of fig. 1.
The following description is made with reference to the accompanying drawings:
1-bearing mounting shell; 2-a bearing;
3-pressing cover; 4-spring mounting plate;
5-a spring; 6-positioning pin;
7-stationary ring; 8-moving ring;
9-rotation axis; 71-second seal ring;
72-third seal ring; 81-first seal ring;
82-flat bond; 83-O-shaped sealing ring.
Detailed Description
The following description of a preferred embodiment of the present invention will be made in conjunction with the accompanying drawings. However, the scope of the present invention is not limited to the following embodiments, and all simple equivalent changes and modifications made by the claims and the contents of the specification are still included in the scope of the present invention.
The utility model provides a shield constructs quick-witted slip casting bearing package and puts with automatic compensation function, includes bearing installation casing 1, bearing 2, gland 3, spring mounting panel 4, spring 5, locating pin 6, quiet ring 7, rotating ring 8, rotation axis 9 etc..
Bearing installation casing 1 is the casing of installation self-aligning roller bearing 2, and the hole of bearing installation casing 1 assembles through the cooperation relation with the outer lane of bearing 2, and it has the lubricating grease hole to process on bearing installation casing 1, and the accessible is annotated the fat pump and is annotated the fat to the casing inner chamber automatically to other parts in bearing 2 and the bearing installation casing 1 lubricate.
In order to facilitate the installation, the radius of an inner hole of the bearing installation shell 1 is increased in a step shape from inside to outside, the bearing is installed at the second step position of the inner hole, a gland 3 with an L-shaped section is fixed on the side walls of the second step and the third step of the inner hole, and the inner end of the gland is tightly pressed and fixed on the side surface of the outer ring of the bearing 2. Gland 3 is used for compressing tightly 2 outer lane terminal surfaces of bearing promptly, prevents that the bearing from rotating at the during operation outer lane, and gland 3 is connected through the bolt with bearing installation casing 1.
The spring mounting plate 4 is used for installing a positioning pin 6 and a spring 5, the positioning pin 6 is assembled with the spring mounting plate 4 through interference fit, the spring 5 is positioned through a protruding part of the positioning pin 6, and the spring 5 mainly provides pressing force of a static ring 7 and a movable ring 8.
The static ring 7 and the dynamic ring 8 are oppositely and hermetically arranged between the hole wall of the inner hole of the bearing installation shell 1 and the rotating shaft 9, the inner ring of the dynamic ring is hermetically and fixedly connected with the rotating shaft, and the outer ring of the dynamic ring is provided with a first sealing ring 81 which is hermetically connected with the hole wall of the inner hole of the bearing installation shell 1; the outer ring of the static ring is provided with a second sealing ring 71 which is in sealing connection with the hole wall of the inner hole of the bearing installation shell 1, and the inner ring of the static ring is provided with a third sealing ring 72 which is in sealing connection with the outer side surface of the rotating shaft.
The stationary ring 7 is divided into two parts, one part is a metal main body structure, and the other part is a rubber structure, namely a second sealing ring 71 and a third sealing ring 72 which are respectively bonded with the inner ring and the outer ring of the metal structure into a whole through a special bonding process. When the bearing package works, the static ring 7 does not rotate along with the rotating shaft 9.
The movable ring 8 is divided into two parts, one part is a metal main body structure, and the other part is a rubber structure, namely a first sealing ring 81 which is bonded with the outer ring of the metal main body into a whole through a special bonding process; when the bearing bag works, the rotating ring 8 rotates along with the rotating shaft 9, a flat key 82 and an O-shaped sealing ring 83 are arranged between the rotating ring 8 and the rotating shaft 9, the flat key transmits the rotating motion, and the O-shaped sealing ring plays a role in sealing to prevent the slurry in the slurry box from entering the bearing bag through a gap between the rotating ring 8 and the rotating shaft 9.
One end of the rotating shaft 9 is matched with an inner hole of the bearing 2, and the other end of the rotating shaft is connected with a stirring shaft in the grouting box body, and when the bearing bag works, the rotating shaft 9, the inner ring of the bearing 2 and the movable ring 8 rotate along with the bearing bag.
The contact position of the end faces of the static ring 7 and the moving ring 8 is a sealing face, and when the moving ring 8 rubber sealing ring fails, the sealing face can still play a sealing role, so that slurry can be effectively prevented from entering a shell cavity, and further, a bearing is damaged to cause the failure and the halt of a grouting stirring system.
The bearing package is arranged before working, the cavity is filled with grease through the grease hole on the bearing mounting shell 1, and the grease is continuously injected into the cavity when the bearing package works. Meanwhile, the rotating shaft 9, the inner ring of the bearing 2 and the movable ring 8 rotate when the bearing is in work, and other structural components do not rotate.
In the initial stage of the operation of the bearing package, the first sealing ring 81 bonded on the outer ring of the movable ring 8 plays a main sealing role, and at the moment, the sealing is mainly carried out by the precompression of the first sealing ring 81; meanwhile, the shaft bearings at the two ends of the stirring shaft can generate eccentricity and bend the stirring shaft due to inevitable assembly precision, so that the axis of the rotating shaft 9 is not coincident with the axis of the bearing installation shell 1, the axis of the movable ring 8 can also deviate from the axis of the bearing installation shell 1, and the static ring 7 can be tightly attached to the end face of the movable ring 8 under the pre-pressure action of the spring 5, so that the sealing performance of the end faces of the static ring 7 and the movable ring 8 is ensured; under the condition that lubricating grease is injected into the cavity all the time, part of the grease can continuously enter the box body through the sealing surface of the static ring 7, the sealing surfaces of the static ring 7 and the dynamic ring 8 and the sealing surface of the dynamic ring 8, so that slurry is effectively prevented from entering the bearing.
Under the condition that 8 outer lane sealing washers of rotating ring became invalid, quiet ring 7 played main sealing effect with 8 end face seal faces of rotating ring, and along with the operation of bearing contract, quiet ring 7 can produce wearing and tearing with 8 contact end faces of rotating ring gradually, nevertheless quiet ring 7 can constantly compensate and tightly laminate on 8 terminal surfaces of rotating ring the wearing and tearing volume under the effect of spring 5 to play better sealed effect.
Therefore, this shield constructs quick-witted slip casting bearing package with automatic compensation function puts through setting up quiet ring and rotating ring, and pass through the spring with quiet ring, spring mounting board and bearing installation casing are connected, under the sealed condition that loses efficacy of rotating ring outer seal circle, the terminal surface of quiet ring and rotating ring plays main sealing effect, and constantly compensate with the wearing and tearing volume to between rotating ring and the quiet ring through the fine setting of spring drive quiet ring, make quiet ring tightly laminate on the rotating ring terminal surface all the time, thereby good sealed effect has been guaranteed, can realize the automatic compensation function again.
Claims (6)
1. The utility model provides a shield constructs quick-witted slip casting bearing contract device with automatic compensation function which characterized in that: the bearing mounting structure comprises a bearing mounting shell (1), a bearing (2), a spring mounting plate (4), a spring (5), a positioning pin (6), a static ring (7), a movable ring (8) and a rotating shaft (9), wherein the bearing mounting shell (1) is provided with an inner hole with one open end, the bearing is assembled in the inner hole, and an outer ring of the bearing is fixed with the hole wall of the inner hole; one end of the rotating shaft (9) penetrates through the bearing (2) and is fixed with the inner ring of the bearing (2); the static ring (7) and the movable ring (8) are arranged between the hole wall of the inner hole of the bearing installation shell (1) and the rotating shaft (9) in a relatively sealed mode, the inner ring of the movable ring is fixedly connected with the rotating shaft in a sealed mode, and a first sealing ring (81) is arranged on the outer ring of the movable ring and is connected with the hole wall of the inner hole of the bearing installation shell (1) in a sealed mode; a second sealing ring (71) is arranged on the outer ring of the static ring and is in sealing connection with the hole wall of the inner hole of the bearing installation shell (1), and a third sealing ring (72) is arranged on the inner ring of the static ring and is in sealing connection with the outer side surface of the rotating shaft; the spring mounting plate is fixed in on bearing installation casing (1), and is located quiet ring is kept away from a side of rotating ring is out of, the both ends of spring are fixed in through the locating pin respectively the spring mounting plate with quiet ring is kept away from on a side of rotating ring.
2. The shield tunneling machine grouting bearing contract device with the automatic compensation function according to claim 1, characterized in that: the radius of the inner hole of the bearing mounting shell (1) is increased in a stepped manner from inside to outside, the bearing is mounted at the second step position of the inner hole, a gland (3) with an L-shaped section is fixed on the side walls of the second step and the third step of the inner hole, and the inner end of the gland is tightly pressed and fixed on the side surface of the outer ring of the bearing (2).
3. The shield tunneling machine grouting bearing contract device with the automatic compensation function according to claim 2, characterized in that: the spring mounting plate and the gland are fixed on the gland (3) through the same bolt.
4. The shield tunneling machine grouting bearing contract device with the automatic compensation function according to claim 2, characterized in that: the locating pin is assembled with the spring mounting plate through interference fit, and the spring is located through the protruding portion of the locating pin.
5. The shield tunneling machine grouting bearing contract device with the automatic compensation function according to claim 1, characterized in that: and the bearing mounting shell (1) is provided with an oil grease hole.
6. The shield tunneling machine grouting bearing contract device with the automatic compensation function according to claim 1, characterized in that: the inner ring of the movable ring is fixedly connected with the rotating shaft in a sealing way through a flat key (82) and an O-shaped sealing ring (83).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455585.0U CN210423725U (en) | 2019-09-03 | 2019-09-03 | Shield constructs quick-witted slip casting bearing package and puts with automatic compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921455585.0U CN210423725U (en) | 2019-09-03 | 2019-09-03 | Shield constructs quick-witted slip casting bearing package and puts with automatic compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210423725U true CN210423725U (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921455585.0U Active CN210423725U (en) | 2019-09-03 | 2019-09-03 | Shield constructs quick-witted slip casting bearing package and puts with automatic compensation function |
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| CN (1) | CN210423725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911625A (en) * | 2020-08-19 | 2020-11-10 | 南京工业职业技术学院 | Self-adaptive shaft seal mechanism and mounting method thereof |
| CN114278743A (en) * | 2021-12-30 | 2022-04-05 | 南京翔瑞智能装备技术有限公司 | Valve plate wearing and tearing self compensating's rotatory feeder of no leakage |
-
2019
- 2019-09-03 CN CN201921455585.0U patent/CN210423725U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111911625A (en) * | 2020-08-19 | 2020-11-10 | 南京工业职业技术学院 | Self-adaptive shaft seal mechanism and mounting method thereof |
| CN114278743A (en) * | 2021-12-30 | 2022-04-05 | 南京翔瑞智能装备技术有限公司 | Valve plate wearing and tearing self compensating's rotatory feeder of no leakage |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Packing device for grouting bearing of shield machine with automatic compensation function Effective date of registration: 20201105 Granted publication date: 20200428 Pledgee: Bank of Hangzhou Limited by Share Ltd. Nanjing branch Pledgor: XCMG KAIGONG HEAVY INDUSTRY NANJING Co.,Ltd. Registration number: Y2020980007571 |