CN215928142U

CN215928142U - Special bearing and bearing assembly for vacuum cylinder mould of paper making machinery production line

Info

Publication number: CN215928142U
Application number: CN202121194737.3U
Authority: CN
Inventors: 曹善杰; 曹宗勋
Original assignee: Sichuan Yingchuang Heavy Industry Machinery Co ltd
Current assignee: Sichuan Yingchuang Heavy Industry Machinery Co ltd
Priority date: 2021-05-31
Filing date: 2021-05-31
Publication date: 2022-03-01
Anticipated expiration: 2031-05-31

Abstract

A special bearing and bearing assembly for a vacuum cylinder mould of a paper making machinery production line comprises an inner ring, an outer ring, a split retainer and a plurality of rolling bodies; the outer side of the inner ring is provided with a rolling groove I, the inner side of the outer ring is provided with a rolling groove II, and the rolling groove I and the rolling groove II form a bearing chamber for accommodating the split retainer and the rolling body; an oil hole penetrating through the inner ring and the outer ring is formed in the inner ring, and an oil groove is formed in the rolling groove I. The utility model has the following advantages: the bearing can be filled with lubricating grease under the condition of no shutdown by matching with a specific fixed shaft, so that the production time and the production capacity are effectively increased.

Description

Special bearing and bearing assembly for vacuum cylinder mould of paper making machinery production line

Technical Field

The utility model relates to the field of papermaking equipment, in particular to a special bearing for a vacuum cylinder mould of a papermaking mechanical production line.

Background

The special bearing for the vacuum cylinder mould of the production line of the papermaking machinery generally comprises an inner ring, an outer ring, a rolling body and a split retainer, wherein the rolling body and the split retainer are arranged between the inner ring and the outer ring; when the vacuum cylinder mould is used, the inner ring is arranged on a fixed shaft and is fixed and does not rotate, and the bearing outer ring is arranged at the end part of the vacuum cylinder mould and can rotate along with the vacuum cylinder mould.

The special bearing for the vacuum cylinder mould of the production line of the papermaking machinery has the following defects:

1. when the bearing chamber, namely the space between the inner ring and the outer ring, needs to be lubricated, the machine is stopped firstly, and then the lubricating grease can be manually filled into the bearing chamber;

2. the split retainer is not in contact with the outer ring, and the vibration impact load brought by the high-speed rotation of the bearing outer ring can cause the split retainer to generate stress displacement and deformation through the rolling body;

3. the contact area between the rolling body and the inner ring is small, the outer ring rotates under the condition that the vacuum mesh cage works at a high speed and under a heavy load, the stability of the bearing in the operation process is low, and the service life is short.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a special bearing for a vacuum cylinder mould of a production line of papermaking machinery, which can be matched with a specific fixed shaft to fill lubricating grease into the bearing under the condition of no shutdown, thereby effectively increasing the production time and the production capacity.

Another object of the present invention is to provide a bearing assembly provided with the above-mentioned vacuum cylinder mould special bearing for a paper machine production line, which can fill the bearing with grease without stopping the machine, and effectively increase the production time and the production volume.

The utility model aims to realize the purpose, and the special bearing for the vacuum cylinder mould of the production line of the papermaking machinery comprises an inner ring, an outer ring, a split retainer and a plurality of rolling bodies; the outer side of the inner ring is provided with a rolling groove I, the inner side of the outer ring is provided with a rolling groove II, and the rolling groove I and the rolling groove II form a bearing chamber for accommodating the split retainer and the rolling body; an oil hole penetrating through the inner ring and the outer ring is formed in the inner ring, and an oil groove is formed in the rolling groove I.

The bearing assembly provided with the special bearing for the vacuum cylinder mould of the paper making machinery production line comprises a fixed shaft provided with an annular groove and an oil duct, wherein the annular groove is arranged on the outer side of the fixed shaft and is communicated with the oil duct; the inner ring is arranged on the fixed shaft in an interference fit mode, and the position of the oil hole corresponds to the position of the annular groove.

In the utility model, the working principle is as follows: the special bearing for the vacuum cylinder mould of the production line of the papermaking machinery is matched with a specific fixed shaft, the specific fixed shaft is a fixed shaft provided with an annular groove and an oil duct, the annular groove is communicated with the oil duct, when the special bearing is used, the inner ring is arranged on the fixed shaft in an interference fit mode, and the oil hole corresponds to the annular groove. When the bearing chamber is filled with lubricating grease, the lubricating grease is only required to be added into the annular groove through the oil duct of the fixed shaft, and under the pressure action during the grease filling, the lubricating grease in the annular groove enters the oil hole of the inner ring and further enters the bearing chamber to lubricate the rolling body; because the inner ring and the fixed shaft are in interference fit, in the process that lubricating grease enters the oil hole from the annular groove, the lubricating grease cannot leak from the position between the inner ring and the fixed shaft, the lubricating grease is conveyed into the oil hole of the inner ring through the fixed shaft under the condition of not stopping the machine, the lubricating grease is further injected into the bearing chamber, the bearing lubrication is realized, and the production time and the production amount are effectively increased. In addition, the oil groove is used for filling lubricating grease into the bearing chamber, and the lubricating grease can be used for fully lubricating the bearing chamber along the oil groove in the rotating process of the rolling body.

Due to the adoption of the scheme, the utility model has the following advantages:

1. the lubricating grease can be filled into the bearing under the condition of no shutdown, so that the production time and the production capacity are effectively increased.

2. The split retainer is prevented from generating stress displacement and deformation due to vibration impact load in the working process of the bearing.

3. The contact area between the increase rolling element and the inner circle makes the bearing more accord with the outer lane rotation under the high-speed heavy load condition of vacuum cylinder mould work, and the stability of bearing operation in-process is higher, and life is longer, makes the bearing design principle accord with the special reduction electric quantity loss of vacuum cylinder mould, reduces the change loss of bearing quantity, reduces the loss pollution of the inside chemical grease of abandonment bearing after changing to have the actual action to energy-conserving environmental protection.

Drawings

The drawings of the utility model are illustrated as follows:

fig. 1 is a schematic perspective view of a special bearing for a vacuum cylinder mould in a production line of a paper machine.

Fig. 2 is a schematic view of the installation of the inner ring and the fixed shaft of the bearing assembly special for the vacuum cylinder mould of the production line of the paper making machine.

Fig. 3 is a schematic view of an inner ring of a special bearing for a vacuum cylinder mould of a production line of a papermaking machine.

Fig. 4 is another schematic view of the inner ring of the vacuum cylinder mould special bearing of the paper machine production line.

FIG. 5 is a schematic cross-sectional view of a vacuum cylinder mould bearing for a paper machine line.

Fig. 6 is another schematic cross-sectional view of a special vacuum cylinder mould bearing for a paper machine line.

Fig. 7 is a schematic view of a split frame in a special bearing for a vacuum cylinder mould of a production line of a papermaking machine.

Fig. 8 is a schematic cross-sectional view taken along line a-a in fig. 7.

In the figure: 1. an inner ring; 2. an outer ring; 3. a fixed shaft; 4. a rolling body; 5. a rolling groove I; 6. a rolling groove II; 7. an oil hole; 8. an oil sump; 9. a split frame; 10. a separation part; 11. a guide section; 12. a trough body; 13. a guide groove; 14. a middle stop block; 15. a left rolling groove; 16. a right rolling groove; 17. a left through hole; 18. a right through hole; 19. an annular groove; 20. an oil passage; 21. a split retainer.

Detailed Description

In the present invention, the directional words such as "left", "right", etc. are described according to fig. 3 and 4, and during the actual usage, they can be adaptively changed according to the usage scenario.

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

as shown in fig. 1 to 8, a vacuum cylinder mould special bearing for a production line of a paper making machine comprises an inner ring 1, an outer ring 2, a split retainer 21 and a plurality of rolling bodies 4; the outer side of the inner ring 1 is provided with a rolling groove I5, the inner side of the outer ring 2 is provided with a rolling groove II 6, and the rolling groove I5 and the rolling groove II 6 form a bearing chamber for accommodating the split retainer 21 and the rolling body 4; an oil hole 7 penetrating through the inner part and the outer part is formed in the inner ring 1, and an oil groove 8 is further formed in the rolling groove I5.

A bearing assembly provided with the special bearing for the vacuum cylinder mould of the paper making machinery production line comprises a fixed shaft 3 provided with an annular groove 19 and an oil duct 20, wherein the annular groove 19 is arranged on the outer side of the fixed shaft 3 and communicated with the oil duct 20; the inner ring 1 is arranged on the fixed shaft 3 through interference fit, and the position of the oil hole 7 corresponds to the position of the annular groove 19.

In the utility model, the working principle is as follows: the special bearing for the vacuum cylinder mould of the production line of the paper making machinery is matched with the special fixed shaft 3, the special fixed shaft 3 is the fixed shaft 3 provided with the annular groove 19 and the oil duct 20, the annular groove 19 is communicated with the oil duct 20, when the special bearing is used, the inner ring 1 is arranged on the fixed shaft 3 in an interference fit mode, and the position of the oil hole 7 corresponds to the position of the annular groove 19. When the bearing chamber is filled with lubricating grease, the lubricating grease is only required to be added into the annular groove 19 through the oil passage 20 of the fixed shaft 3, and under the pressure action during the grease filling, the lubricating grease in the annular groove enters the oil hole 7 of the inner ring 1 and further enters the bearing chamber to lubricate the rolling element 4; because the inner ring 1 and the fixed shaft are in interference fit, in the process that lubricating grease enters the oil hole 7 from the annular groove, the lubricating grease cannot leak from the inner ring 1 and the fixed shaft, the lubricating grease is conveyed into the oil hole 7 of the inner ring 1 through the fixed shaft 3 under the condition of no shutdown, the lubricating grease is further injected into a bearing chamber, the bearing lubrication is realized, and the production time and the production capacity are effectively increased. In addition, the oil groove 8 is used for filling the grease into the bearing chamber, so that the grease can be fully lubricated along the oil groove 8 to the bearing chamber during the rotation of the rolling bodies 4. Grease is typically added to the bearing chamber above 2/3.

Further, as shown in fig. 1, 5, 6, 7 and 8, the split holder 21 includes two split frames 9 symmetrically disposed, each split frame 9 includes a split portion 10 and a guide portion 11 integrally disposed, the split portion 10 is opened with a plurality of groove bodies 12 matching with the rolling elements 4, and the rolling elements 4 are disposed in the groove bodies 12; the rolling groove II 6 is provided with a guide groove 13 matched with the guide part 11, and the guide part 11 is arranged in the guide groove 13. The split part 10 has the functions of separating and limiting the plurality of rolling bodies 4, and the guide part 11 is arranged in the guide groove 13 and has the functions of enabling the bearing outer ring 2 to rotate, more effectively compensating shaft deflection corresponding to high-speed working operation and preventing the vibration impact load in the bearing working process from causing the stress displacement and deformation of the retainer. Thereby make the bearing more accord with the outer lane 2 rotation under the high-speed heavy load condition of vacuum cylinder mould work, the stability of bearing operation in-process is higher, and life is longer, makes the bearing design principle accord with the special change loss that reduces the bearing quantity of vacuum cylinder mould, reduces the loss pollution of the inside chemical grease of abandonment bearing after changing, and then plays energy-concerving and environment-protective effect.

Further, as shown in fig. 1, 5 and 6, the rolling elements 4 have a drum shape. The rolling body 4 is waist drum-shaped, so that the contact area between the rolling body 4 and the inner ring 1 is increased, the bearing is more suitable for the rotation of the outer ring 2 under the condition of high speed and heavy load of the vacuum mesh cage, the stability of the bearing in the operation process is higher, and the service life is longer.

Further, as shown in fig. 2, 3 and 4, a middle stopper 14 is disposed in the rolling groove i 5, the middle stopper 14 divides the rolling groove i 5 into a left rolling groove 15 and a right rolling groove 16 with a bottom surface inclined inward to the right, the bottom surface of the left rolling groove 15 is inclined inward to the left, and the oil grooves 8 are annular grooves formed at two ends of the bottom of the left rolling groove 15 and two ends of the bottom of the right rolling groove 16. The middle stopper 14 divides the rolling groove I5 into a left rolling groove 15 and a right rolling groove 16 with the bottom surface inclined inwards to the right, the effect of the left inner inclination of the bottom surface of the left rolling groove 15 is to facilitate the grease to flow along the bottom surface of the left rolling groove 15 and the bottom surface of the oil rolling groove when entering the bearing chamber outside the inner ring 1 from the oil hole 7, thereby make lubricating grease distribute throughout whole bearing room better, secondly be convenient for set up waist drum shape rolling element 4, increase area of contact between rolling element 4 and the rolling groove I5, make the bearing more accord with the outer lane 2 rotation under the high-speed heavy load condition of vacuum cylinder mould work, stability in the bearing operation process is higher, life is longer, make the bearing design principle accord with the special reduction electric quantity loss of vacuum cylinder mould, reduce the change loss of bearing quantity, reduce the loss pollution of the inside chemical grease of abandonment bearing after the change, thereby have the actual effect to energy-conserving environmental protection. The oil grooves 8 are annular grooves formed at two ends of the bottom of the left rolling groove 15 and two ends of the bottom of the right rolling groove 16, so that grease can be more easily and uniformly distributed in the bearing chamber along the annular grooves under the rotation of the rolling bodies 4. The term "right" in the rightward inward inclination refers to the right side shown in fig. 2, 3, and 4, and "inward" refers to the inner side of the inner ring. The left side in the leftward inward inclination is the left side shown in fig. 2, 3, and 4, and the "inward" means the inner side of the inner ring.

Further, as shown in fig. 2, 3 and 4, the oil hole 7 is disposed on the middle stopper 14, the middle stopper 14 is further opened with a left through hole 17 and a right through hole 18, the left rolling groove 15 and the oil hole 7 are communicated through the left through hole 17, and the right rolling groove 16 and the oil hole 7 are communicated through the right through hole 18. The outer side of the middle stop block 14 is in certain contact with the split retainer 21, and the split retainer 21 can block oil filled in the oil hole 7 to a certain degree, so that the left through hole 17 and the right through hole 18 are arranged to facilitate lubricating grease to enter a bearing chamber more easily.

Further, in the present embodiment, the oil holes 7 include six oil holes 7 that are circumferentially and uniformly opened in the inner race 1. The six oil holes 7 are uniformly arranged in the circumferential direction, so that lubricating grease is more uniformly distributed in the bearing chamber under the effects of not damaging the strength of the inner ring 1 and saving the processing cost. In other embodiments, the oil holes 7 may be other numbers of oil holes provided in the inner ring 1.

Claims

1. A special bearing for a vacuum cylinder mould of a paper making machine production line comprises an inner ring (1), an outer ring (2), a split retainer (21) and a plurality of rolling bodies (4); the method is characterized in that: a rolling groove I (5) is formed in the outer side of the inner ring (1), a rolling groove II (6) is formed in the inner side of the outer ring (2), and the rolling groove I (5) and the rolling groove II (6) form a bearing chamber for accommodating the split retainer (21) and the rolling body (4); an oil hole (7) penetrating through the inner part and the outer part is formed in the inner ring (1), and an oil groove (8) is further formed in the rolling groove I (5).

2. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 1, characterized in that: the split retainer (21) comprises two split frames (9) which are symmetrically arranged, each split frame (9) comprises a split part (10) and a guide part (11) which are integrally arranged, a plurality of groove bodies (12) matched with the rolling bodies (4) are formed in the split parts (10), and the rolling bodies (4) are arranged in the groove bodies (12); the rolling groove II (6) is provided with a guide groove (13) matched with the guide part (11), and the guide part (11) is arranged in the guide groove (13).

3. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 1 or 2, characterized in that: the rolling body (4) is waist drum shaped.

4. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 1 or 2, characterized in that: a middle stop block (14) is arranged in the rolling groove I (5), the rolling groove I (5) is divided into a left rolling groove (15) and a right rolling groove (16) with the bottom surface inclined inwards to the right by the middle stop block (14), the bottom surface of the left rolling groove (15) is inclined inwards to the left, and oil grooves (8) are annular grooves formed in two ends of the bottom of the left rolling groove (15) and two ends of the bottom of the right rolling groove (16).

5. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 3, characterized in that: a middle stop block (14) is arranged in the rolling groove I (5), the rolling groove I (5) is divided into a left rolling groove (15) and a right rolling groove (16) with the bottom surface inclined inwards to the right by the middle stop block (14), the bottom surface of the left rolling groove (15) is inclined inwards to the left, and oil grooves (8) are annular grooves formed in two ends of the bottom of the left rolling groove (15) and two ends of the bottom of the right rolling groove (16).

6. The special vacuum cylinder mould bearing for the production line of the papermaking machine as claimed in claim 4, wherein: the oil hole (7) is arranged on the middle stop block (14), the middle stop block (14) is further provided with a left through hole (17) and a right through hole (18), the left rolling groove (15) is communicated with the oil hole (7) through the left through hole (17), and the right rolling groove (16) is communicated with the oil hole (7) through the right through hole (18).

7. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 5, characterized in that: the oil hole (7) is arranged on the middle stop block (14), the middle stop block (14) is further provided with a left through hole (17) and a right through hole (18), the left rolling groove (15) is communicated with the oil hole (7) through the left through hole (17), and the right rolling groove (16) is communicated with the oil hole (7) through the right through hole (18).

8. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 1, 2, 5, 6 or 7, characterized in that: the oil holes (7) comprise six oil holes (7) which are uniformly arranged on the inner ring (1) in the circumferential direction.

9. The special vacuum cylinder mould bearing for the production line of the paper making machine as claimed in claim 3, characterized in that: the oil holes (7) comprise six oil holes (7) which are uniformly arranged on the inner ring (1) in the circumferential direction.

10. Bearing assembly provided with a special vacuum cylinder mould bearing for a paper machine line according to any of the preceding claims 1-9, characterized in that: the oil-gas separation device comprises a fixed shaft (3) provided with an annular groove (19) and an oil duct (20), wherein the annular groove (19) is arranged on the outer side of the fixed shaft (3) and is communicated with the oil duct (20); the inner ring (1) is arranged on the fixed shaft (3) in an interference fit manner, and the position of the oil hole (7) corresponds to the position of the annular groove (19).