阅读说明：本技术 轴、径向组合式防倾翻轴承总成 (Shaft and radial combined type anti-tipping bearing assembly ) 是由 姜贺 邵明 武广富 李忠洋 赵晓斌 刘学 吴欢 张放 于 2020-06-28 设计创作，主要内容包括：本发明涉及一种轴承总成结构,具体是涉及轴、径向组合式防倾翻轴承总成,包括：圆柱滚子轴承、滚针轴承、轴向配套法兰盘及径向安装芯轴；所述的圆柱滚子轴承一端连接轴向配套法兰盘,轴向配套法兰盘外径与圆柱滚子轴承内圈接触,所述轴向配套法兰盘中心设有空腔结构,所述空腔内嵌设有滚针轴承,滚针轴承内部设有径向安装芯轴,所述径向安装芯轴的两端延伸至圆柱滚子轴承内圈位置并且与内圈之间设有空隙；采用圆柱滚子轴承和滚针轴承总成结构,箱体内壁兜孔结构,直接嵌入滚针轴承,并在滚针总成中增加芯轴,而法兰轴外径安装在圆柱滚子内圈,搭配箱体法兰盘安装使用过程中,轴、径向同时运转防止倾翻；同时可以满足自密封、长期免维护的性能。(The invention relates to a bearing assembly structure, in particular to a shaft and radial combined type anti-tipping bearing assembly, which comprises: the device comprises a cylindrical roller bearing, a needle bearing, an axial matched flange plate and a radial installation core shaft; one end of the cylindrical roller bearing is connected with an axial matching flange plate, the outer diameter of the axial matching flange plate is contacted with the inner ring of the cylindrical roller bearing, a cavity structure is arranged in the center of the axial matching flange plate, a needle roller bearing is embedded in the cavity, a radial installation core shaft is arranged in the needle roller bearing, and two ends of the radial installation core shaft extend to the position of the inner ring of the cylindrical roller bearing and a gap is formed between the two ends of the radial installation core shaft and the inner ring; the roller bearing is directly embedded into the pocket structure on the inner wall of the box body, a mandrel is added in the roller bearing assembly, the outer diameter of a flange shaft is arranged on the inner ring of the cylindrical roller, and the flange shaft and the radial direction run simultaneously to prevent tipping in the installation and use process matched with a box body flange plate; meanwhile, the self-sealing and long-term maintenance-free performance can be met.)

1. Axle, radial combination formula anti-tilt bearing assembly, its characterized in that includes: the device comprises a cylindrical roller bearing, a needle bearing, an axial matched flange plate and a radial installation core shaft; one end of the cylindrical roller bearing is connected with an axial matching flange plate, the outer diameter of the axial matching flange plate is in contact with the inner ring of the cylindrical roller bearing, a cavity structure is arranged at the center of the axial matching flange plate, a needle bearing is embedded in the cavity, and a radial installation core shaft is arranged in the needle bearing.

2. The shaft-radial combination anti-tipping bearing assembly of claim 1, wherein: and two ends of the radial installation mandrel extend to the position of the inner ring of the cylindrical roller bearing, and a gap is formed between the two ends of the radial installation mandrel and the inner ring.

3. The shaft-radial combination anti-tipping bearing assembly of claim 1, wherein: a gap is arranged between the outer wall of the needle bearing ring and the inner wall of the cavity; the radial installation core shaft is connected with the axial matching flange plate.

4. The shaft-radial combination anti-tipping bearing assembly of claim 1, wherein: the cylindrical roller bearing is in a full-filling self-sealing form.

5. The shaft-radial combination anti-tipping bearing assembly of claim 4, wherein: the self-sealing form is a combined form; a sealing ring is arranged between the end surface of the inner ring flange close to one side of the axial matched flange plate and the end surface of the outer ring flange; the end face of the inner ring in the direction opposite to the direction for mounting the axial matching flange plate is provided with a baffle cover, the baffle cover is connected with the axial matching flange through a screw, and a sealing ring is arranged between the end face of the baffle cover and the end face of the outer ring flange; the cylindrical roller is fully arranged between the outer ring and the inner ring.

6. The shaft-radial combination anti-tipping bearing assembly of claim 5, wherein: the baffle cover and the end face of the bearing inner ring are detachable.

7. The shaft-radial combination anti-tipping bearing assembly of claim 3, wherein: the needle bearing is in a self-sealing form; the inner wall of the needle bearing ring is provided with a needle roller rolling body, the needle roller rolling body is in rolling connection with the radial installation core shaft, the two ends of the ring, which are in contact with the end faces of the two ends of the needle roller rolling body, are provided with ring flanges, a retainer ring is arranged between the ring flanges and the radial installation core shaft, and a seal ring is arranged at the contact position of the end faces of the ring flanges and the retainer ring.

8. The shaft-radial combination anti-tipping bearing assembly of any one of claims 1 to 7, wherein: the edge of the axial matching flange plate body is provided with bolt holes, and the wheels of the shield machine are connected to the axial matching flange plate through bolts in the bolt holes.

Technical Field

The invention relates to a bearing assembly structure, in particular to a shaft-radial combined type anti-overturning bearing assembly which is mainly applied to the wheel position of a shield machine in the aspect of engineering machinery and belongs to the technical field of bearings.

Background

In major underground rail traffic engineering projects at home and abroad, the requirements on the stability and reliability of the shield tunneling machine are very high because of complex geological structure and severe working environment. The shield machine is heavy in self weight, the wheel position bearing is large and the working environment is special, so that the cleaning and inspection of the products after installation are difficult, the disassembly and maintenance are difficult, and the maintenance cost is high.

Disclosure of Invention

In view of the demand of the above structure for high-bearing support, the present invention provides a combined axial and radial anti-tipping bearing assembly with high bearing capacity, which can realize simultaneous operation in axial and radial directions to prevent tipping, and can satisfy self-sealing and long-term maintenance-free performance.

In order to achieve the purpose, the invention adopts the technical scheme that: shaft, radial combination formula anti-tilt bearing assembly includes: the device comprises a cylindrical roller bearing, a needle bearing, an axial matched flange plate and a radial installation core shaft; one end of the cylindrical roller bearing is connected with an axial matching flange plate, the outer diameter of the axial matching flange plate is contacted with the inner ring of the cylindrical roller bearing, a cavity structure is arranged in the center of the axial matching flange plate, a needle roller bearing is embedded in the cavity, a radial installation core shaft is arranged in the needle roller bearing, and two ends of the radial installation core shaft extend to the position of the inner ring of the cylindrical roller bearing and a gap is formed between the two ends of the radial installation core shaft and the inner ring;

furthermore, a gap is formed between the outer wall of the needle bearing ring and the inner wall of the cavity; the radial installation core shaft is connected with the axial matched flange;

further, the cylindrical roller bearing is in a full-load self-sealing form;

further, the self-sealing form is a combined form; a sealing ring is arranged between the end surface of the inner ring flange close to one side of the axial matched flange plate and the end surface of the outer ring flange; the end face of the inner ring in the direction opposite to the direction for mounting the axial matching flange plate is provided with a baffle cover, the baffle cover is connected with the axial matching flange through a screw, and a sealing ring is arranged between the end face of the baffle cover and the end face of the outer ring flange; the cylindrical roller is fully arranged between the outer ring and the inner ring; the baffle cover is arranged to be matched with the sealing ring, so that the direct contact between the bearing raceway and air is avoided, and the intervention of impurities is prevented; prevent the grease loss and prolong the service life of the bearing.

Furthermore, the baffle cover and the end surface of the bearing inner ring are in a detachable mode;

further, the needle bearing is in a self-sealing form; the inner wall of the needle bearing ring is provided with a needle roller rolling body, the needle roller rolling body is in rolling connection with the radial installation core shaft, the two ends of the ring at the contact part of the two end surfaces of the needle roller rolling body are provided with ring flanges, a retainer ring is arranged between the ring flanges and the radial installation core shaft, and the contact position of the end surfaces of the ring flanges and the retainer ring is provided with a seal ring; the retainer ring is arranged to be matched with the sealing ring, so that the direct contact between the bearing raceway and air is avoided, and the intervention of impurities is prevented; prevent the grease loss and prolong the service life of the bearing.

The sealing ring and the check ring sealing protection structure arranged on the cylindrical roller bearing and the needle bearing can avoid impurity intervention, reduce volatilization and deterioration of lubricating grease, and improve the lubricating roller path of the grease, so that the maintenance period is increased from 1 km/time to 5km times.

Further, bolt holes are formed in the edge of the axial matched flange plate body, and the wheels of the shield tunneling machine are connected to the axial matched flange plate through bolts in the bolt holes;

when the bearing assembly operates, the cylindrical roller bearing drives the axial matched flange plate and the wheel to rotate radially, and the needle bearing and the radial installation mandrel rotate axially; thereby realizing the simultaneous operation of the axial direction and the radial direction, preventing the tipping and having high bearing capacity.

The invention has the beneficial effects that: the roller bearing is directly embedded into the pocket structure on the inner wall of the box body, a mandrel is added in the roller bearing assembly, the outer diameter of a flange shaft is arranged on the inner ring of the cylindrical roller, and the flange shaft and the radial direction run simultaneously to prevent tipping in the installation and use process matched with a box body flange plate; meanwhile, the self-sealing and long-term maintenance-free performance can be met. The cylindrical roller bearing is designed to be a cylindrical full-load roller bearing, so that the bearing load is increased and the service life of the bearing is prolonged by 30%. In a self-sealing mode, a sealing ring and a check ring are adopted to seal and protect the structure, so that impurity intervention is avoided, volatilization and deterioration of lubricating grease are reduced, and the lubricating roller path of the grease is better, so that the maintenance period is increased from 1 km/time to 5km times; the defect that the interior of the bearing cannot be cleaned due to the fact that a roller directly contacts with air in the process of assembling and using the bearing with the original open structure is overcome.

Drawings

Fig. 1 is an overall structural view of the present invention.

Fig. 2 is a side view of fig. 1.

In the figure, 01, a cylindrical roller bearing, 02, a sealing ring, 03, an axial matching flange plate, 04, a radial installation core shaft, 05, a needle bearing, 06, a retaining cover, 07 and a retaining ring.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.

As shown in fig. 1-2, the shaft-radial combined anti-tipping bearing assembly comprises: the device comprises a cylindrical roller bearing 01, a needle bearing 05, an axial matched flange 03 and a radial installation mandrel 04; one end of the cylindrical roller bearing 01 is connected with an axial matching flange 03, the outer diameter of the axial matching flange 03 is in contact with the inner ring of the cylindrical roller bearing 01, a cavity structure is arranged in the center of the axial matching flange 03, a needle roller bearing 05 is embedded in the cavity, a radial mounting mandrel 04 is arranged inside the needle roller bearing 05, and two ends of the radial mounting mandrel 04 extend to the position of the inner ring of the cylindrical roller bearing 01 and a gap is formed between the two ends of the radial mounting mandrel 04 and the inner ring;

further, a gap is formed between the outer wall of the needle bearing 05 ferrule and the inner wall of the cavity; the radial installation core shaft 04 is connected with the axial matched flange 03;

further, the cylindrical roller bearing 01 is in a full-load self-sealing form;

further, the self-sealing form is a combined form; a sealing ring is arranged between the end surface of the inner ring flange close to one side of the axial matched flange plate and the end surface of the outer ring flange; the end face of the inner ring in the direction opposite to the direction for mounting the axial matching flange plate is provided with a baffle cover, the baffle cover is connected with the axial matching flange through a screw, and a sealing ring is arranged between the end face of the baffle cover and the end face of the outer ring flange; the cylindrical roller is fully arranged between the outer ring and the inner ring.

Furthermore, the baffle cover 06 and the end face of the bearing inner ring are detachable;

further, the needle bearing 05 is in a self-sealing form; a needle roller rolling body is arranged on the inner wall of a needle roller bearing 05 ferrule, the needle roller rolling body is in rolling connection with the radial installation mandrel 04, ferrule flanges are arranged at two ends of the ferrule at the contact part of the two end faces of the needle roller rolling body, a retainer ring 07 is arranged between the ferrule flanges and the radial installation mandrel 04, and a seal ring 02 is arranged at the contact position of the ferrule flange end face and the retainer ring 7;

further, bolt holes are formed in the edge of the disc body of the axial matching flange 03, and the wheels of the shield tunneling machine are connected to the axial matching flange through bolts in the bolt holes;

when the bearing assembly operates, the cylindrical roller bearing 01 drives the axial matched flange 03 and the wheel to rotate radially, and the needle bearing 05 and the radial installation mandrel 04 rotate axially; thereby realizing the simultaneous operation of the axial direction and the radial direction, preventing the tipping and having high bearing capacity.