CN209781476U - Three-row cylindrical roller shield machine cutter head bearing with double metal retainers - Google Patents
Three-row cylindrical roller shield machine cutter head bearing with double metal retainers Download PDFInfo
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- CN209781476U CN209781476U CN201920387892.3U CN201920387892U CN209781476U CN 209781476 U CN209781476 U CN 209781476U CN 201920387892 U CN201920387892 U CN 201920387892U CN 209781476 U CN209781476 U CN 209781476U
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Abstract
The utility model discloses a three rows of cylindrical roller shield constructs quick-witted blade disc bearing of bimetal holder, including outer ring gear and inner circle, be equipped with three rows of rolling elements that are used for bearing load between outer ring gear and the inner circle, be provided with steel holder in the annular region at three rows of rolling element places respectively, be provided with on the holder and be used for playing the copper foot spare that prevents holder wearing and tearing, the utility model has the advantages of simple structure and reasonable design, this bearing is the stabilizer blade of fixed connection copper on the working face of holder to improve the wear resistance of holder, the cost is reduced when guaranteeing the holder rigidity, has prolonged the life that constructs quick-witted blade disc bearing of shield.
Description
Technical Field
The utility model belongs to the technical field of shield constructs quick-witted bearing design, concretely relates to three rows of cylindrical roller shield constructs quick-witted blade disc bearing of bimetal holder.
Background
the shield machine is a special engineering machine for tunneling, has the functions of light collection, mechanical cutting, soil residue conveying, tunnel lining assembling, measurement guiding, deviation correction and the like, and relates to multiple subject technologies such as geology, construction, machinery, mechanics, hydraulic pressure, electricity, control, measurement and the like.
At the shield structure machine tunnelling in-process, its main bearing can bear compound load such as axial force, radial force, overturning load, and shield structure owner blade disc bearing generally adopts three rows of cylindrical roller integrated configuration, but current blade disc bearing is because operational environment is abominable, and its inside holder often can not satisfy the user demand of bearing, and present holder material kind mainly has: 1. the steel is made, and has the characteristics of good rigidity, poor wear resistance and low cost; 2. the plastic material has the characteristics of wear resistance, poor strength, poor heat dissipation and low price; 3. copper has the characteristics of good heat dissipation, wear resistance, poor rigidity and high price; 4. the nodular cast iron material has the characteristics of wear resistance, moderate heat dissipation, general strength and moderate cost. The large-scale shield machine bearing requires that the retainer has the characteristics of wear resistance, good rigidity, good heat conductivity, low friction and low cost due to the severe working environment, but the retainer of the traditional shield machine bearing adopts a structure made of a single material, so that the wear resistance is poor, the damage of the retainer is caused due to poor heat conductivity, and the like, the normal use requirement of the shield machine bearing cannot be met, and the service life of the bearing is shortened.
Disclosure of Invention
The utility model discloses a solve above-mentioned technical problem, provide a three-row cylindrical roller shield constructs quick-witted cutter head bearing of bimetal holder, this bearing fixed connection copper's stabilizer blade on the working face of holder to improve the wear resistance of holder, the cost is reduced when guaranteeing the holder rigidity, has prolonged the shield and has constructed quick-witted cutter head bearing's life.
The utility model adopts the technical proposal that: the cutter head bearing of the double-metal retainer for the three-row cylindrical roller shield machine comprises an outer gear ring and an inner ring, wherein three rows of rolling bodies for bearing load are arranged between the outer gear ring and the inner ring, steel retainers are respectively arranged in annular regions where the three rows of rolling bodies are located, and copper supporting foot pieces for preventing the retainers from being abraded are arranged on the retainers.
The rolling body comprises a first roller and a second roller which bear axial load of the bearing and a third roller which is used for bearing radial load of the bearing, a retainer in an annular region where the first roller is located is a first retainer, a retainer in an annular region where the second roller is located is a second retainer, and a retainer in an annular region where the third roller is located is a third retainer.
First pocket hole of six groups has been seted up to first holder on its thickness direction, and first pocket hole of six groups is around the central evenly distributed of first holder, and the quantity in the first pocket hole of every group is seven, and both sides are provided with first stabilizer blade about the rib between two sets of adjacent first pocket holes, and the first stabilizer blade quantity of every side is two, every first stabilizer blade and first holder mutual welding, and carry out the secondary with first stabilizer blade and first holder through hexagon socket head cap screw and be connected fixedly.
six groups of second pockets are formed in the second retainer in the thickness direction of the second retainer, the six groups of second pockets are uniformly distributed around the center of the second retainer, the number of each group of second pockets is ten, second support legs are arranged on the upper side and the lower side of a rib between every two adjacent groups of second pockets, and each second support leg is welded with the second retainer and is fixedly connected with the second retainer for the second time through an inner hexagonal cylindrical head screw.
the third retainer has been seted up nine groups of third pockets on its circumference position, and wherein eight groups of each pocket quantity of third pocket are six, and the pocket quantity of another group of third pocket is five, and the rib inner wall position between every group of third pocket is provided with the third stabilizer blade, and every third stabilizer blade and third retainer are mutual welding, and carry out the secondary with third stabilizer blade and third retainer through hexagon socket head cap screw and be connected fixedly.
The inner ring comprises a first inner ring and a second inner ring which are arranged concentrically and are fastened and connected through bolts.
when the bearing works, the three rows of rolling bodies and the respective retainer are arranged between the outer gear ring and the inner ring of the bearing, and the rolling bodies drive the respective retainer to rotate when rotating, wherein the first support legs and the second support legs on the upper sides and the lower sides of the first retainer and the second retainer are in contact with the outer gear ring and the inner ring of the bearing; in a similar way, the third support leg on the third retainer is in contact with the outer wall of the first inner ring, and an oil film is formed in a gap in contact with the third support leg, so that the service life of the third retainer is prolonged, and the purpose of prolonging the service life of the bearing is achieved.
Steel cages are respectively arranged in the annular areas where the three rows of rolling bodies are located, and copper supporting foot parts for preventing the cages from being worn are arranged on the cages; the purpose of this is: can be at the bearing during operation, the holder relies on the interior outer lane department of meeting of this copper's stabilizer blade spare and bearing, because the thermal diffusivity of copper, wear resistance are good, can replace the mode that traditional rigidity spare and bearing contacted, can reduce the wearing and tearing of holder, because the holder is the rigidity material, can make the whole rigidity of holder satisfy the user demand like this, the two combines the extension that is favorable to the whole life of holder.
The utility model has the advantages that: the utility model has the advantages of simple structure and reasonable design, this bearing is the stabilizer blade of fixed connection copper on the working face of holder to improve the wear resistance of holder, the cost is reduced when guaranteeing the holder rigidity, prolonged the shield structure machine cutter head bearing's life.
Drawings
Fig. 1 is a partial cross-sectional view of the present invention;
Fig. 2 is a plan view of a first holder of the present invention;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 2 3 in 3 accordance 3 with 3 the 3 present 3 invention 3; 3
Fig. 4 is a plan view of the second holder of the present invention;
Fig. 5 is a cross-sectional view of B-B of fig. 4 in accordance with the present invention;
Fig. 6 is a plan view of a third cage of the present invention;
FIG. 7 is a view from the direction P of FIG. 6 according to the present invention;
Fig. 8 is a cross-sectional view of C-C of fig. 7 according to the present invention.
The labels in the figure are: 1. an outer ring gear; 2. a first inner race; 3. a second inner race; 4. a first roller; 5. a first holder; 501. a first pocket; 502. a first leg; 6. a second roller; 7. a second holder; 701. a second pocket; 702. a second leg; 8. a third roller; 9. a third cage; 901. a third pocket; 902. a third leg.
Detailed Description
the following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
as shown in the figure, the three-row cylindrical roller shield tunneling machine cutter head bearing with the double-metal retainer comprises an outer gear ring 1 and an inner ring, wherein the inner ring comprises a first inner ring 2 and a second inner ring 3, the first inner ring 2 and the second inner ring 3 are connected through bolts, three rows of rolling bodies for bearing load are arranged between the outer gear ring 1 and the inner ring, steel retainers are respectively arranged in annular regions where the three rows of rolling bodies are located, specifically, the three retainers are respectively a first retainer 5, a second retainer 7 and a third retainer 9, copper support foot parts for preventing the retainers from being worn are arranged on the retainers, and the copper support foot parts are respectively corresponding to the first support foot 502, the second support foot 702 and the third support foot 902.
The rolling bodies comprise a first roller 4 and a second roller 6 for bearing the axial load of the bearing and a third roller 8 for bearing the radial load of the bearing, a retainer in an annular area where the first roller 4 is located is a first retainer 5, a retainer in an annular area where the second roller 6 is located is a second retainer 7, and a retainer in an annular area where the third roller 8 is located is a third retainer 9.
First pocket 501 has been seted up to six groups in first holder 5 on its thickness direction, first pocket 501 of six groups is around the central evenly distributed of first holder 5, the quantity of the first pocket 501 of every group is seven, both sides are provided with first stabilizer 502 about the rib between two sets of adjacent first pockets 501, the first stabilizer 502 quantity of every side is two, every first stabilizer 502 welds each other with first holder 5, and carry out the secondary with first stabilizer 502 and first holder 5 through hexagon socket head cap screw and be connected fixedly.
Six groups of second pockets 701 are formed in the second retainer 7 in the thickness direction of the second retainer, the six groups of second pockets 701 are uniformly distributed around the center of the second retainer 7, the number of each group of second pockets 701 is ten, second support legs 702 are arranged on the upper side and the lower side of a rib between every two adjacent groups of second pockets 701, each second support leg 702 is welded with the second retainer 7, and the second support legs 702 and the second retainer 7 are connected and fixed for the second time through hexagon socket head cap screws.
The third cage 9 is provided with nine sets of third pockets 901 in the circumferential direction, wherein each set of eight sets of third pockets 901 has six pockets, the other set of third pockets 901 has five pockets, a third leg 902 is provided in the inner wall of the rib between each set of third pockets 901, each third leg 902 and the third cage 9 are welded to each other, and the third leg 902 and the third cage 9 are secondarily connected and fixed by hexagon socket head cap screws.
When the bearing works, the three rows of rolling bodies and the respective retainers are arranged between the outer gear ring 1 and the inner ring of the bearing, and the rolling bodies drive the respective retainers to rotate when rotating, wherein the first support leg 502 and the second support leg 702 on the upper side and the lower side of the first retainer 5 and the second retainer 7 are in contact with the outer gear ring 1 and the inner ring of the bearing, and the first support leg 502 and the second support leg 702 are made of copper, so that the bearing has good heat dissipation and wear resistance, lubricating grease is added in the area where the retainer and the rolling bodies of the bearing are located, and a grease layer can be located between the support legs and the binding surface to form an oil film, so that the wear of the first support leg 502 and the second support leg 702 is further reduced, and the service lives of the first retainer 5 and the second retainer 7 can be prolonged; similarly, the third leg 902 of the third retainer 9 contacts with the outer wall of the first inner ring 2, and an oil film is formed in the contact gap, which also ensures the extension of the service life of the third retainer 9, and achieves the purpose of extending the service life of the bearing.
Claims (6)
1. The utility model provides a three rows of cylindrical roller shield constructs quick-witted cutter head bearing of bimetal holder which characterized in that: the bearing comprises an outer gear ring and an inner ring, wherein three rows of rolling bodies used for bearing load are arranged between the outer gear ring and the inner ring, steel cages are respectively arranged in annular regions where the three rows of rolling bodies are located, and copper foot pieces used for preventing the cages from being worn are arranged on the cages.
2. The three-row cylindrical roller shield tunneling machine cutter head bearing with the bimetallic retainer according to claim 1, characterized in that: the rolling body comprises a first roller and a second roller which bear axial load of the bearing and a third roller which is used for bearing radial load of the bearing, a retainer in an annular area where the first roller is located is a first retainer, a retainer in an annular area where the second roller is located is a second retainer, and a retainer in an annular area where the third roller is located is a third retainer.
3. The three-row cylindrical roller shield tunneling machine cutter head bearing with the bimetallic retainer as claimed in claim 2, wherein: first pocket hole of six groups has been seted up to first holder on its thickness direction, and first pocket hole of six groups is around the central evenly distributed of first holder, and the quantity in the first pocket hole of every group is seven, and both sides are provided with first stabilizer blade about the rib between two sets of adjacent first pocket holes, and the first stabilizer blade quantity of every side is two, every first stabilizer blade and first holder mutual weld, and carry out the secondary with first stabilizer blade and first holder through interior hexagonal socket head screw and be connected fixedly.
4. The three-row cylindrical roller shield tunneling machine cutter head bearing with the bimetallic retainer as claimed in claim 2, wherein: six groups of second pockets have been seted up on its thickness direction at the second holder, and six groups of second pockets are around the central evenly distributed of second holder, and the quantity in every group second pocket is ten, and both sides are provided with the second stabilizer blade about the rib between two sets of adjacent second pockets, and every second stabilizer blade welds each other with the second holder, and carries out the secondary with second holder through hexagon socket head cap screw and be connected fixedly.
5. The three-row cylindrical roller shield tunneling machine cutter head bearing with the bimetallic retainer as claimed in claim 2, wherein: the third retainer has been seted up nine groups of third pockets on its circumference position, and wherein eight groups of each pocket quantity of third pocket are six, and the pocket quantity of another group of third pocket is five, and the rib inner wall position between every group of third pocket is provided with the third stabilizer blade, and every third stabilizer blade and third retainer are mutual welding, and carry out the secondary with third stabilizer blade and third retainer through hexagon socket head cap screw and be connected fixedly.
6. The three-row cylindrical roller shield tunneling machine cutter head bearing with the bimetallic retainer according to claim 1, characterized in that: the inner ring comprises a first inner ring and a second inner ring which are arranged concentrically and are fastened and connected through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387892.3U CN209781476U (en) | 2019-03-26 | 2019-03-26 | Three-row cylindrical roller shield machine cutter head bearing with double metal retainers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920387892.3U CN209781476U (en) | 2019-03-26 | 2019-03-26 | Three-row cylindrical roller shield machine cutter head bearing with double metal retainers |
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| Publication Number | Publication Date |
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| CN209781476U true CN209781476U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920387892.3U Active CN209781476U (en) | 2019-03-26 | 2019-03-26 | Three-row cylindrical roller shield machine cutter head bearing with double metal retainers |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812502A (en) * | 2019-03-26 | 2019-05-28 | 洛阳新强联回转支承股份有限公司 | A kind of three-row cylinder roller cutter head of shield machine bearing of bimetallic retainer |
| CN113339411A (en) * | 2021-06-09 | 2021-09-03 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and axial retainer and radial retainer thereof |
| CN114483794A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
-
2019
- 2019-03-26 CN CN201920387892.3U patent/CN209781476U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812502A (en) * | 2019-03-26 | 2019-05-28 | 洛阳新强联回转支承股份有限公司 | A kind of three-row cylinder roller cutter head of shield machine bearing of bimetallic retainer |
| CN113339411A (en) * | 2021-06-09 | 2021-09-03 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine and axial retainer and radial retainer thereof |
| CN113339411B (en) * | 2021-06-09 | 2022-12-16 | 中国铁建重工集团股份有限公司 | Main bearing of heading machine, axial retainer and radial retainer thereof |
| CN114483794A (en) * | 2022-01-25 | 2022-05-13 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
| CN114483794B (en) * | 2022-01-25 | 2024-04-19 | 中国铁建重工集团股份有限公司 | Combined retainer for main bearing of heading machine and assembling method thereof |
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