CN211901277U

CN211901277U - Spindle type full-sealed single-row full-complement cylindrical roller bearing

Info

Publication number: CN211901277U
Application number: CN202020410071.XU
Authority: CN
Inventors: 陈海波; 李建波; 殷忠路
Original assignee: Wuxi Haoran Precision Machinery Manufacturing Co Ltd
Current assignee: Wuxi Haoran Precision Machinery Manufacturing Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-11-10
Anticipated expiration: 2030-03-27

Abstract

The utility model discloses a main shaft formula totally enclosed list full complement cylindrical roller bearing, concretely relates to bearing field, including outer lane, inner circle, main shaft, cylindrical roller, the fixed surface of main shaft has cup jointed and has kept off the shoulder, cloth oil pan, packing ring are located the both ends about the inner circle respectively, the oil line has been seted up to the inside of main shaft, the outer lane, the left end of inner circle be equipped with keep off the shoulder, the recess of cloth oil pan looks adaptation, the flaring has been seted up to the right-hand member of inner circle, the bolt that screw hole and be provided with the looks adaptation is seted up to the surface of packing ring and the left end of. The utility model discloses a set up the cloth oil device of no negative pressure structure, utilize the cloth oil dish as the main oil distribution device of this bearing, need not to destroy the original stable structure of bearing, and the cloth oil dish is independent of and does not carry out any negative pressure outside the bearing, consequently can avoid the high load and the damage that leads to when following the main shaft motion, and the integral structure of bearing is more stable, is favorable to improving its life.

Description

Spindle type full-sealed single-row full-complement cylindrical roller bearing

Technical Field

The utility model relates to a bearing technical field, more specifically say, the utility model particularly relates to a main shaft type totally enclosed list full complement cylindrical roller bearing.

Background

Along with the continuous development of industry, the machinery trade has bigger development prospect in each field also, and this has just led to the demand to the bearing kind more diversified, and at present, domestic bearing is mostly open bearing, often can receive the erosion of external dust, impurity etc. and sealing performance is not good, has accelerated the damage of bearing. In addition, in the case of high-speed rotation or high temperature, oil lubrication is more suitable than grease lubrication, and the common oil lubrication mode is lubrication from the outside of the bearing, so that the oil consumption is high, the cost is high, and the quality requirement on the lubricating oil is high.

In order to solve the above problems, patent application publication No. CN203948446U discloses a spindle-type fully-sealed single-row full-complement cylindrical roller bearing, which refers to fig. 5 of the specification, in which a spindle 3 is provided with an oil line 6, an oil groove is formed in the inner diameter of an inner ring 2, and two oil holes are formed in the middle of the inner ring 2 along the width of a raceway, and are distributed at 90 degrees and respectively communicated with two oil lines in the radial direction of the spindle 3, so as to improve the lubricating effect thereof, and the elastic sealing rings 9 on both sides of the bearing are provided to effectively store oil.

However, the above technical solutions still have many disadvantages in practical use: because this cylindrical roller bearing is lubricated through the mode of opening at the internal diameter and having the oil groove to bearing inside oiling, its oil groove structure has reduced the holistic rigidity of bearing in the in-service use, makes its circular stable structure appear destroying, and easy damage, life cycle end, and its processing degree of difficulty is great adds that the cost is higher and is unfavorable for a large amount of using widely.

Therefore, it is highly desirable to provide a spindle-type fully-sealed single-row full-complement cylindrical roller bearing with a simple structure and a long service life.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, the embodiment of the utility model provides a spindle-type full-sealed single-row full-complement cylindrical roller bearing, through setting up the oil distribution device that does not have the negative pressure structure, utilize the oil distribution dish as the main oil distribution device of this bearing, need not to destroy the original stable structure of bearing, and the oil distribution dish is independent of the bearing and does not carry out any negative pressure, therefore can avoid the damage that the high load leads to when following the motion of main shaft, and the integral structure of bearing is more stable, be favorable to improving its life; additionally, the utility model discloses an optimize oil circuit pipeline design again, utilize the cloth food tray with the inside fluid of main oil line centrifugal force that produces through the high-speed rotation of following the main shaft with fluid along main shaft axial distribution in bearing surface, fluid distributes more evenly, is showing the lubricating property that improves the bearing, ensures the steady operation of bearing to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a main shaft formula totally enclosed list full complement cylindrical roller bearing, includes outer lane, inner circle, main shaft, cylindrical roller rotates to be installed in the inboard of outer lane, inner circle, the fixed cover of inner circle connects in the surface of main shaft, the surface of main shaft has fixed cover from a left side to the right side in proper order and has been connect and keep off shoulder, cloth food tray, packing ring are located the both ends about the inner circle respectively, the oil line has been seted up to the inside of main shaft, the left end of outer lane, inner circle is equipped with and keeps off the recess of shoulder, cloth oil tray looks adaptation, the flaring has been seted up to the right-hand member of inner circle, the surface of packing ring and the left end.

In a preferred embodiment, the edge of the retaining shoulder is fixedly sleeved with an elastic sealing ring which is abutted against the outer ring, the right ends of the outer ring and the inner ring are clamped with end covers, the end covers and the elastic sealing ring are of annular structures, and the outer side and the inner side of each end cover are respectively connected with the outer ring and the inner ring in a sliding manner.

In a preferred embodiment, a cavity is formed between the outer ring and the inner ring, the cylindrical rollers are densely distributed in the cavity of the outer ring and the cavity of the inner ring, and the surfaces of the cylindrical rollers are connected with the inner sides of the outer ring and the inner ring in a sliding manner.

In a preferred embodiment, the oil distribution disc is located inside a sealed cavity formed by the retaining shoulder and the outer ring, a sleeve hole matched with the main shaft is formed in the middle of the oil distribution disc, a circular groove is formed in the inner side of the sleeve hole, a radial oil duct is formed in the surface of the main shaft, and two ends of the radial oil duct are respectively communicated with the oil line and the circular groove in the inner side of the sleeve hole.

In a preferable embodiment, an oil distributing line is arranged inside the oil distributing disc, oil distributing holes are uniformly arranged on the surface of the oil distributing disc, and two ends of the oil distributing line are respectively communicated with the oil distributing holes and the inside of the sleeve hole.

In a preferred embodiment, the flaring is positioned at one side of the inner cavity of the outer ring and the inner ring, a gap is arranged between the right end of the oil distribution disc and the left end of the outer ring and the inner ring, and the flaring and the oil distribution hole are close to each other.

The utility model discloses a technological effect and advantage:

1. the oil distribution device with the non-negative-pressure structure is arranged, the oil distribution disc is used as the main oil distribution device of the bearing, the original stable structure of the bearing is not needed to be damaged, and the oil distribution disc is independent of the bearing and does not have any negative pressure, so that the damage caused by high load can be avoided when the oil distribution disc moves along with the main shaft, the integrated structure of the bearing is more stable, and the service life of the bearing is prolonged;

2. the utility model discloses an optimize oil circuit pipeline design again, utilize the cloth food tray with the inside fluid of main oil line centrifugal force through the high-speed rotatory production of following the main shaft with fluid along main shaft axial distribution in bearing surface, fluid distributes more evenly, is showing the lubricating property that improves the bearing, ensures the stable operation of bearing.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the schematic view of the cross-sectional structure of the oil distribution plate of the present invention.

Fig. 3 is the schematic view of the appearance structure of the oil distribution plate of the present invention.

Fig. 4 is a schematic structural diagram of fig. 1A of the present invention.

Fig. 5 is a schematic diagram of a comparison file structure of the present invention.

The reference signs are: 1. an outer ring; 2. an inner ring; 3. a main shaft; 4. a shoulder block; 5. an oil distribution disc; 6. an oil line; 7. flaring; 8. a cylindrical roller; 9. an end cap; 10. a gasket; 11. a bolt; 12. an elastic sealing ring; 51. arranging an oil line; 52. an oil distributing hole; 53. and (5) trepanning.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The main shaft type full-sealing single-row full-complement cylindrical roller bearing shown in the attached drawings 1-4 comprises an outer ring 1, an inner ring 2, a main shaft 3 and cylindrical rollers 8, wherein the cylindrical rollers 8 are rotatably installed on the inner sides of the outer ring 1 and the inner ring 2, the inner ring 2 is fixedly sleeved on the surface of the main shaft 3, a shoulder 4, an oil distribution disc 5 and a gasket 10 are fixedly sleeved on the surface of the main shaft 3 from left to right in sequence, the oil distribution disc 5 and the gasket 10 are respectively located at the left end and the right end of the inner ring 2, an oil line 6 is arranged inside the main shaft 3, grooves matched with the shoulder 4 and the oil distribution disc 5 are arranged at the left ends of the outer ring 1 and the inner ring 2, a flared opening 7 is arranged at the right end of the inner ring 2, and a threaded hole and a bolt 11.

The implementation mode is specifically as follows: by arranging the oil distribution device with a non-negative pressure structure, the oil distribution disc 5 is used as a main oil distribution device of the bearing, the original stable structure of the bearing is not required to be damaged, and the oil distribution disc 5 is independent of the bearing and does not carry out any negative pressure, so that the damage caused by high load can be avoided when the oil distribution disc moves along with the main shaft 3, the integrated structure of the bearing is more stable, and the service life of the bearing is prolonged; additionally, the utility model discloses an optimize oil circuit pipeline design again, utilize cloth food tray 5 with the inside fluid of main oil line 6 centrifugal force that produces through the high-speed rotation of following main shaft 3 with fluid along 3 axial distributions in the bearing surface of main shaft, the fluid distributes more evenly, is showing the lubricating property that improves the bearing, ensures the steady operation of bearing.

The edge of the retaining shoulder 4 is fixedly sleeved with an elastic sealing ring 12 which is mutually abutted to the outer ring 1, the right ends of the outer ring 1 and the inner ring 2 are connected with an end cover 9 in a clamping mode, the end cover 9 and the elastic sealing ring 12 are of an annular structure, the outer side and the inner side of the end cover 9 are respectively connected with the outer ring 1 and the inner ring 2 in a sliding mode, and sealing of the bearing is achieved to prevent oil from leaking and dust from entering.

Wherein, a cavity is formed between the outer ring 1 and the inner ring 2, the cylindrical rollers 8 are densely distributed in the cavity of the outer ring 1 and the cavity of the inner ring 2, and the surfaces of the cylindrical rollers 8 are connected with the inner sides of the outer ring 1 and the inner ring 2 in a sliding way, so that the basic functions of the cylindrical roller bearing are realized.

Wherein, cloth oil pan 5 is located inside the sealed cavity that keeps off shoulder 4 and outer lane 1 and form, and the trepanning 53 with 3 looks adaptations of main shaft is seted up at the middle part of cloth oil pan 5, and the circular slot has been seted up to the inboard of trepanning 53, and radial oil duct has been seted up on the surface of main shaft 3, and the both ends of radial oil duct are linked together with oil line 6 and the inboard circular slot of trepanning 53 respectively, realize the circulation of fluid.

Wherein, oil distribution line 51 has been seted up to the inside of oil distribution dish 5, and oil distribution hole 52 has evenly been seted up on the surface of oil distribution dish 5, and the both ends of oil distribution line 51 are linked together with the inside of oil distribution hole 52 and trepanning 53 respectively, and centrifugal force through the high-speed rotatory production of the follow main shaft 3 of oil distribution dish 5 distributes fluid along main shaft 3 axial on the bearing surface.

The flaring 7 is located on one side of the inner cavity of the outer ring 1 and the inner ring 2, gaps are formed between the right end of the oil distribution disc 5 and the left ends of the outer ring 1 and the inner ring 2, and the flaring 7 is close to the oil distribution hole 52, so that oil in the oil distribution hole 52 can be smoothly guided into the bearing.

The utility model discloses the theory of operation:

firstly, connect the fender shoulder 4 on the surface of the main shaft 3 and then install the oil distribution disc 5, make the inboard oil duct of the oil distribution disc 5 be linked together with the oil line 6, connect the elastic seal ring 12 on the edge of the fender shoulder 4 and then install the single-row full-complement cylindrical roller bearing composed of the outer lane 1, the inner lane 2 and the cylindrical roller 8, finally pass through the gasket 10, the bolt 11 is fixed, utilize the oil distribution disc 5 to distribute the oil inside the main oil line 6 on the bearing surface along the main shaft 3 axial direction through the centrifugal force generated by the high-speed rotation following the main shaft 3, the oil is distributed more evenly, the improvement is shown to the lubricity of the bearing, the oil distribution disc 5 is regarded as the main oil distribution device of this bearing, need not to destroy the original stable structure of the bearing, the bearing operation of the integrated structure is more stable.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a main shaft formula totally enclosed list full complement cylindrical roller bearing, includes outer lane (1), inner circle (2), main shaft (3), cylindrical roller (8) rotate to be installed in the inboard of outer lane (1), inner circle (2) are fixed cup joints in the surface of main shaft (3), its characterized in that: the surface of main shaft (3) is fixed cup jointed from a left side to the right side in proper order and is kept off shoulder (4), cloth oil pan (5), packing ring (10) are located the both ends of controlling of inner circle (2) respectively, oil line (6) have been seted up to the inside of main shaft (3), the left end of outer lane (1), inner circle (2) is equipped with and keeps off the recess of shoulder (4), cloth oil pan (5) looks adaptation, flaring (7) have been seted up to the right-hand member of inner circle (2), the surface of packing ring (10) and the left end of main shaft (3) set up threaded hole and are provided with bolt (11) of looks adaptation.

2. The spindle-type fully-sealed single-row full complement cylindrical roller bearing of claim 1, wherein: the edge of the retaining shoulder (4) is fixedly sleeved with an elastic sealing ring (12) which is mutually abutted to the outer ring (1), the right ends of the outer ring (1) and the inner ring (2) are clamped with an end cover (9), the end cover (9) and the elastic sealing ring (12) are of annular structures, and the outer side and the inner side of the end cover (9) are respectively connected with the outer ring (1) and the inner ring (2) in a sliding mode.

3. The spindle-type fully-sealed single-row full complement cylindrical roller bearing of claim 1, wherein: a cavity is formed between the outer ring (1) and the inner ring (2), the cylindrical rollers (8) are densely distributed in the cavities of the outer ring (1) and the inner ring (2), and the surfaces of the cylindrical rollers (8) are connected with the inner sides of the outer ring (1) and the inner ring (2) in a sliding mode.

4. The spindle-type fully-sealed single-row full complement cylindrical roller bearing of claim 1, wherein: inside cloth food tray (5) were located the sealed cavity that keeps off shoulder (4) and outer lane (1) formed, trepanning (53) with main shaft (3) looks adaptation were seted up at the middle part of cloth food tray (5), the circular slot has been seted up to the inboard of trepanning (53), radial oil duct has been seted up on the surface of main shaft (3), the both ends of radial oil duct are linked together with oil line (6) and the inboard circular slot of trepanning (53) respectively.

5. The spindle-type fully-sealed single-row full complement cylindrical roller bearing of claim 1, wherein: an oil distributing line (51) is arranged inside the oil distributing disc (5), oil distributing holes (52) are uniformly formed in the surface of the oil distributing disc (5), and two ends of the oil distributing line (51) are respectively communicated with the oil distributing holes (52) and the inner part of the sleeve hole (53).

6. The spindle-type fully-sealed single-row full complement cylindrical roller bearing of claim 1, wherein: the flaring (7) is located on one side of the inner cavity of the outer ring (1) and the inner ring (2), gaps are formed between the right end of the oil distribution disc (5) and the left ends of the outer ring (1) and the inner ring (2), and the flaring (7) is close to the oil distribution hole (52).