Device for prolonging service life of roller bearing

Abstract

The invention discloses a device for prolonging the service life of a roller bearing, and belongs to the technical field of rolling mill equipment. The bearing seat is provided with a bearing which is fixedly connected with the roller shaft; the bearing seat is provided with an oiling assembly and a filtering type oil return assembly; the oiling assembly comprises an oil injection assembly and an oil pumping assembly, the oil pumping assembly is fixedly connected with the bearing seat, the oil pumping assembly is fixedly connected with the roller shaft, the oil pumping assembly is connected with the oil injection assembly, the oil injection assembly is connected with the upper end of the bearing seat, and the liquid pumping assembly is further fixedly connected with the lower end of the side wall of the oil tank; the oil tank is connected with a cooling assembly for cooling lubricating oil, and the cooling assembly is higher than the contact part of the oiling assembly and the oil tank; the top of the oil tank is connected with a pressure gauge and an oil-gas balance assembly, and the oil outlet end of the filter-type oil return assembly is fixedly connected with the top of the oil tank. By means of the mode, lubrication of the bearing is facilitated, meanwhile, the bearing is cooled, stable rotation is facilitated, abrasion is reduced, and the service life of the roller bearing is prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of rolling mill equipment, and in particular to a device for extending the service life of a roller bearing. Background Art

[0002] Roller bearings are important components in rolling mill equipment. Their main function is to reduce the friction coefficient of the rolls during operation and extend the service life of the rolls. Their working reliability is particularly important. Roller bearings need to be lubricated during operation.

[0003] For example, Chinese patent CN214948148U discloses a bearing box for a rolling bearing, wherein support blocks are installed at the middle positions on both sides of the bearing box body, a mounting base plate is installed below the bearing box body, a connecting shaft sleeve is installed at the middle position of the front end of the bearing box body, a connecting fixing hole is arranged inside the connecting shaft sleeve, a protective connecting ring block is installed inside the front end of the connecting shaft sleeve, and a sealing block is installed outside the front end of the connecting shaft sleeve. When the utility model adds lubricating oil to the inside of the bearing box body, the lubricating oil is discharged into the oil inlet, and first filtered through the oil filter inside the filter ring block, so that impurities and dirt deposited inside the lubricating oil can be filtered out to avoid being discharged into the inside of the bearing box body, thereby affecting the lubrication effect of the bearing and being unfavorable for use. The oil seal and the sealing block ensure the sealing of the connection, so that the overall sealing effect is good and lubricating oil leakage is avoided.

[0004] The above-mentioned lubricating grease will have a relatively high oil temperature after long-term use, which is not conducive to the heat dissipation of the bearing, and the fluidity is not high, so the lubrication effect is not ideal.

[0005] Based on this, the present invention designs a device for extending the service life of a roller bearing to solve the above-mentioned problem. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a device for extending the service life of a roller bearing.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A device for extending the service life of a roller bearing, comprising a bearing seat and an oil tank; A bearing is coaxially fixedly installed in the bearing seat, and the bearing is fixedly connected to the roller shaft; The upper and lower ends of the bearing seat are respectively connected with a refueling assembly for the bearing lubricating oil and a filtering oil return assembly for recovering and filtering the lubricating oil; The oiling assembly includes an oil spray assembly and an oil pumping assembly, the oil pumping assembly is fixedly connected to the bearing seat, the oil pumping assembly is fixedly connected to the roller shaft, the oil pumping assembly is connected to the oil spray assembly, the oil spray assembly is connected to the upper end of the bearing seat, and the liquid pumping assembly is also fixedly connected to the lower end of the oil tank side wall; The oil tank is connected with a cooling assembly for cooling the lubricating oil, and the cooling assembly is higher than the contact portion between the refueling assembly and the oil tank; A pressure gauge for oil and gas pressure monitoring and an oil and gas balance component for gas pressure balance are connected to the top of the oil tank, and the oil outlet end of the filter oil return component is fixedly connected to the top of the oil tank.

[0008] Furthermore, the oil pumping assembly includes a linkage assembly and a one-way oil supply assembly, the linkage assembly is connected to the roller shaft, the linkage assembly is fixedly connected to the one-way oil supply assembly, the one-way oil supply assembly is fixedly connected to the lower end of the oil tank side wall, and the one-way oil supply assembly is connected to the oil injection assembly.

[0009] Furthermore, the oil injection assembly includes a first pipe, an oil injection hole and a first transverse hole. The first pipe is connected to the one-way oil supply assembly. A group of first transverse holes and two groups of oil injection holes are opened in the bearing seat. The first transverse hole and the oil injection hole are communicated with each other, and the first transverse hole is communicated with the first pipe. The liquid outlets of the two groups of oil injection holes are arranged toward both sides of the bearing.

[0010] Furthermore, the linkage assembly includes a first gear ring, a second gear ring and a transverse axis, the roller shaft is fixedly installed in the mounting hole of the first gear ring, the first gear ring is meshingly connected with the second gear ring, the transverse axis is fixedly installed in the mounting hole of the second gear ring, the transverse axis is fixedly connected to the side wall of the bearing seat through a bearing, and the second gear ring is connected to the one-way oil supply assembly.

[0011] Furthermore, the one-way oil supply assembly includes a first one-way valve, a second one-way valve, a sleeve, a second pipeline, a bearing, a square frame, a sliding rod, a mounting seat and a piston. The mounting seat is fixedly mounted on the side wall of the bearing seat, the mounting seat is equipped with a sleeve, the piston is slidably connected in the sleeve, the top of the piston is fixedly connected to the sliding rod, the top of the sliding rod is fixedly connected to the square frame, the inner wall of the square frame is movably connected to the outer wall of the outer ring of the bearing, the inner ring of the bearing is fixedly connected to the side wall of the second gear ring, the through hole at the lower end of the sleeve is fixedly connected to the second pipeline, the second one-way valve is installed on the second pipeline, the lower end of the side wall of the sleeve is connected and fixedly connected to the first pipeline, the first one-way valve is fixedly mounted on the first pipeline, when the piston moves upward, the second one-way valve opens and the first one-way valve closes, when the piston moves downward, the first one-way valve opens and the second one-way valve closes, and the second pipeline is fixedly connected to the lower end of the side wall of the oil tank.

[0012] Furthermore, the filtering oil return assembly includes a third pipeline, an oil receiving assembly, a filtering assembly and a follower-type plugging assembly. The third pipeline is fixedly installed on the top of the oil tank. The fourth pipeline, the third pipeline is connected to the filtering assembly, the filtering assembly is connected to the oil receiving assembly, the connection between the oil receiving assembly and the filtering assembly is connected with a follower-type plugging assembly, the oil receiving assembly is connected to the bearing seat, the follower-type plugging assembly is in an open state when the filtering assembly is filtering, and the follower-type plugging assembly is in a blocked state when the filtering assembly is cleaning impurities, driving the oil receiving assembly to be in a blocked state.

[0013] Furthermore, the cooling assembly includes an outlet pipe, a fan, an inlet pipe, a first transverse pipe, a serpentine pipe and a second transverse pipe. The oil tank is fixedly connected to the inlet pipe and the outlet pipe, the inner end of the inlet pipe is fixedly connected to the second transverse pipe, the inner end of the outlet pipe is fixedly connected to the first transverse pipe, a serpentine pipe is fixedly connected between the first transverse pipe and the second transverse pipe, and the outer end of the inlet pipe is fixedly connected to the output end of the fan.

[0014] Furthermore, the serpentine pipe is higher than the connection between the second pipeline and the oil tank.

[0015] Furthermore, the oil-gas balance assembly includes an electric control valve, an air pipe, an oil film, a mounting pipe, a support seat and an oil collecting barrel. The air pipe is fixedly installed on the top of the oil tank, the electric control valve is fixedly connected to the air pipe, the air pipe is fixedly connected to the support seat, the lower end of the air pipe is threadedly connected to the oil collecting barrel, the top of the air pipe on the top of the support seat is in contact with the oil film, the air pipe on the top of the support seat is threadedly connected to the mounting pipe, and the mounting pipe is in contact with the outer edge of the top of the oil film.

[0016] Beneficial effect: the roller shaft of the present invention drives the first gear ring of the linkage assembly of the oil pumping assembly of the refueling assembly to rotate, the first gear ring drives the second gear ring to rotate, the second gear ring drives the bearing of the one-way oil supply assembly to rotate, the bearing drives the square frame to move back and forth up and down, the square frame drives the sliding rod to move back and forth up and down, the sliding rod drives the piston to move back and forth up and down, when the piston moves upward, the second one-way valve opens and the first one-way valve closes, the second pipeline draws the lubricating oil cooled by the oil tank into the sleeve, when the piston moves downward, the first one-way valve opens and the second one-way valve closes, the piston pushes the lubricating oil in the sleeve into the first pipeline of the oil injection assembly, and then enters into the first transverse hole, and is sprayed out from the two groups of oil injection holes. The two groups of oil injection holes spray oil on both sides of the bearing in the bearing seat, which is helpful for lubricating the bearing. At the same time, the bearing is cooled, which is conducive to stable rotation, reduces wear, and helps to extend the service life of the roller bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A device for extending the service life of a roller bearing according to the present invention is provided. Figure 1 ; Figure 2 A front view of a device for extending the service life of a roller bearing according to the present invention; Figure 3 It is a left view of a device for extending the service life of a roller bearing according to the present invention; Figure 4 A device for extending the service life of a roller bearing according to the present invention is provided. Figure 2 ; Figure 5 A device for extending the service life of a roller bearing according to the present invention is provided. Figure 3 ; Figure 6 For along Figure 2 AA direction cross-sectional view; Figure 7 For along Figure 3 BB direction cross-sectional view; Figure 8 For along Figure 3 CC direction cross-sectional view; Fig. 9 for Figure 7 A magnified view of the structure at D; Fig.10 for Figure 8 Enlarged view of the structure at E.

[0019] The numbers in the figure represent: 1. Bearing seat 2. Roller shaft 3. Oil tank 4. Refueling assembly 41. First pipeline 42. First one-way valve 43. Second one-way valve 44. Sleeve 45. Second pipeline 46. First gear ring 47. Bearing 48. Square frame 49. Second gear ring 410. Horizontal axis 411. Sliding rod 412. Mounting seat 413. Oil injection hole 414. First horizontal hole 415. Piston 5. Filter oil return assembly 51. Third pipeline 52. Cover plate 53. Horizontal cylinder 54. Fourth pipeline 55 .Second transverse hole 56. Oil receiving hole 57. Spring 58. Guide seat 59. Conical plug 510. Filter cartridge 511. Retaining ring 512. First cross bar 513. Second cross bar 514. Conical ring 6. Pressure gauge 7. Oil and gas balance assembly 71. Electric control valve 72. Air pipe 73. Oil film 74. Mounting pipe 75. Support seat 76. Oil receiving barrel 8. Cooling assembly 81. Air outlet pipe 82. Fan 83. Air inlet pipe 84. First transverse pipe 85. Serpentine pipe 86. Second transverse pipe. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] The present invention will be further described below in conjunction with the embodiments.

[0022] For example, see Figure 1-Figure 10 , a device for extending the service life of a roller bearing, comprising a bearing seat 1 and an oil tank 3; A bearing is coaxially fixedly installed in the bearing seat 1, and the bearing is fixedly connected to the roller shaft 2; The upper and lower ends of the bearing seat 1 are respectively connected with a refueling assembly 4 for lubricating the bearing oil and a filtering oil return assembly 5 for recovering and filtering the lubricating oil; The oiling assembly 4 includes an oil spraying assembly and an oil pumping assembly, the oil pumping assembly is fixedly connected to the bearing seat 1, the oil pumping assembly is fixedly connected to the roller shaft 2, the oil pumping assembly is connected to the oil spraying assembly, the oil spraying assembly is connected to the upper end of the bearing seat 1, and the liquid pumping assembly is also fixedly connected to the lower end of the side wall of the oil tank 3; The oil tank 3 is connected to a cooling assembly 8 for cooling the lubricating oil, and the cooling assembly 8 is higher than the contact portion between the refueling assembly 4 and the oil tank 3; The top of the oil tank 3 is connected with a pressure gauge 6 for oil and gas pressure monitoring and an oil and gas balance component 7 for gas pressure balance, and the oil outlet end of the filter oil return component 5 is fixedly connected to the top of the oil tank 3; The roller shaft 2 drives the oil pumping assembly of the refueling assembly 4 to pump the cooled lubricating oil in the oil tank 3 into the oil spraying assembly. The oil spraying assembly sprays oil on the bearing in the bearing seat 1, which helps to lubricate the bearing. At the same time, the bearing is cooled, which is conducive to stable rotation, reduces wear, and helps to extend the service life of the roller bearing. In addition, the oil is pumped out by the power of the roller shaft 2, which can reduce the power input and help save energy and reduce consumption; the filtered oil return assembly 5 filters the lubricating oil after cooling and use, reduces the wear of impurities on the bearing, and is conducive to actual use. Finally, the cooling assembly 8 can cool the lubricating oil.

[0023] A sealing ring is provided at the contact portion between the bearing seat 1 and the roller shaft 2; The oil pumping assembly includes a linkage assembly and a one-way oil supply assembly. The linkage assembly is connected to the roller shaft 2, the linkage assembly is fixedly connected to the one-way oil supply assembly, the one-way oil supply assembly is fixedly connected to the lower end of the side wall of the oil tank 3, and the one-way oil supply assembly is connected to the oil injection assembly.

[0024] The oil injection assembly includes a first pipeline 41, an oil injection hole 413 and a first transverse hole 414. The first pipeline 41 is connected to the one-way oil supply assembly. A group of first transverse holes 414 and two groups of oil injection holes 413 are opened in the bearing seat 1. The first transverse hole 414 and the oil injection hole 413 are communicated with each other, and the first transverse hole 414 is communicated with the first pipeline 41. The liquid outlets of the two groups of oil injection holes 413 are arranged toward both sides of the bearing. The linkage assembly includes a first gear ring 46, a second gear ring 49 and a transverse axis 410. The roller shaft 2 is fixedly installed in the mounting hole of the first gear ring 46. The first gear ring 46 is meshingly connected with the second gear ring 49. The transverse axis 410 is fixedly installed in the mounting hole of the second gear ring 49. The transverse axis 410 is fixedly connected to the side wall of the bearing seat 1 through a bearing. The second gear ring 49 is connected to the one-way oil supply assembly.

[0025] The one-way oil supply assembly includes a first one-way valve 42, a second one-way valve 43, a sleeve 44, a second pipe 45, a bearing 47, a square frame 48, a slide rod 411, a mounting seat 412 and a piston 415. The mounting seat 412 is fixedly mounted on the side wall of the bearing seat 1, the sleeve 44 is mounted on the mounting seat 412, the piston 415 is slidably connected in the sleeve 44, the top of the piston 415 is fixedly connected to the slide rod 411, the top of the slide rod 411 is fixedly connected to the square frame 48, the inner wall of the square frame 48 is movably connected to the outer wall of the outer ring of the bearing 47, and the bearing 4 The inner ring of the sleeve 44 is fixedly connected to the side wall of the second gear ring 49, the through hole at the lower end of the sleeve 44 is fixedly connected to the second pipe 45, the second one-way valve 43 is installed on the second pipe 45, the lower end of the side wall of the sleeve 44 is connected to the first pipe 41, the first one-way valve 42 is fixedly installed on the first pipe 41, when the piston 415 moves upward, the second one-way valve 43 opens and the first one-way valve 42 closes, when the piston 415 moves downward, the first one-way valve 42 opens and the second one-way valve 43 closes, and the second pipe 45 is fixedly connected to the lower end of the side wall of the oil tank 3; The roller shaft 2 drives the first gear ring 46 of the linkage assembly of the oil pumping assembly of the oil filling assembly 4 to rotate, the first gear ring 46 drives the second gear ring 49 to rotate, the second gear ring 49 drives the bearing 47 of the one-way oil supply assembly to rotate, the bearing 47 drives the square frame 48 to move up and down, the square frame 48 drives the slide bar 411 to move up and down, the slide bar 411 drives the piston 415 to move up and down, when the piston 415 moves upward, the second one-way valve 43 opens, the first one-way valve 42 closes, and the second pipeline 45 cools the oil tank 3 The lubricating oil is pumped into the sleeve 44. When the piston 415 moves downward, the first one-way valve 42 opens and the second one-way valve 43 closes. The piston 415 pushes the lubricating oil in the sleeve 44 into the first pipe 41 of the oil injection assembly, and then enters the first transverse hole 414 to be sprayed out from the two groups of oil injection holes 413. The two groups of oil injection holes 413 spray oil on both sides of the bearing in the bearing seat 1, which helps to lubricate the bearing. At the same time, the bearing is cooled, which is conducive to stable rotation, reduces wear, and helps to extend the service life of the roller bearing.

[0026] The filter-type oil return assembly 5 includes a third pipe 51, an oil receiving assembly, a filter assembly and a follower-type plugging assembly. The third pipe 51 is fixedly installed on the top of the oil tank 3, and the fourth pipe 54, the third pipe 51 is connected to the filter assembly, the filter assembly is connected to the oil receiving assembly, and the connection between the oil receiving assembly and the filter assembly is connected to the follower-type plugging assembly, the oil receiving assembly is connected to the bearing seat 1, the follower-type plugging assembly is in an open state when the filter assembly is filtering, and the follower-type plugging assembly is in a blocked state when the filter assembly is cleaning impurities, driving the oil receiving assembly to be in a blocked state.

[0027] The oil receiving assembly includes a fourth pipe 54, a second transverse hole 55 and an oil receiving hole 56. A group of second transverse holes 55 and two groups of oil receiving holes 56 are opened at the lower end of the bearing seat 1. The oil receiving holes 56 are communicated with the second transverse holes 55, and the oil receiving holes 56 are located on both sides of the bearing in the bearing seat 1. The fourth pipe 54 is fixedly connected to the bearing seat 1, the fourth pipe 54 is communicated with the second transverse hole 55, and the fourth pipe 54 is connected to the filter assembly.

[0028] The filter assembly includes a cover plate 52, a transverse cylinder 53, a filter cartridge 510, a retaining ring 511 and a first transverse rod 512. The transverse cylinder 53 is fixedly connected to the fourth pipe 54. The retaining ring 511 is fixedly connected to the end of the transverse cylinder 53 near the inner wall of the fourth pipe 54. The outer wall of the end of the filter cartridge 510 near the fourth pipe 54 is fitted and slidably connected to the inner wall of the retaining ring 511. The end of the filter cartridge 510 away from the fourth pipe 54 is fixedly connected to the cover plate 52. The cover plate 52 is threadedly connected to the transverse cylinder 53. The end of the cover plate 52 near the fourth pipe 54 is fixedly connected to the first transverse rod 512. The side wall of the transverse cylinder 53 is fixedly connected to the third pipe 51. The third pipe 51 is located at the side wall of the retaining ring 511 away from the fourth pipe 54.

[0029] The follow-up plugging assembly includes a spring 57, a guide seat 58, a conical plug 59, a second cross bar 513 and a conical ring 514. The end of the fourth pipe 54 away from the bearing seat 1 is fixedly connected with the guide seat 58 and the conical ring 514. The end of the guide seat 58 close to the bearing seat 1 is fixedly connected with the guide seat 58. The movable end of the guide seat 58 is fixedly connected with the second cross bar 513. The second cross bar 513 is slidably connected with the guide seat 58. The second cross bar 513 is fixedly connected with the conical plug 59 used in conjunction with the conical ring 514. The second cross bar 513 is in active contact with the first cross bar 512. The dimension of the end of the conical plug 59 close to the bearing seat 1 is greater than the dimension of the end of the conical plug 59 away from the bearing seat 1 .

[0030] When the filter cartridge 510 is in close contact with the retaining ring 511 , the spring 57 is in a compressed state, and the conical plug 59 is not in contact with the conical ring 514 .

[0031] After the filter cartridge 510 and the retaining ring 511 are separated, the conical plug 59 is in close contact with the conical ring 514 , and the cover plate 52 and the horizontal cylinder 53 are not separated.

[0032] The cover plate 52 of the filter assembly of the filter-type oil return assembly 5 is connected to the transverse cylinder 53. The cover plate 52 drives the first transverse rod 512 to fit and contact the second transverse rod 513 to push the second transverse rod 513 to move. The spring 57 is in a compressed state, and the conical plug 59 does not contact the conical ring 514. The lubricating oil in the bearing seat 1 enters the oil receiving hole 56 of the oil receiving assembly, and then enters the lubricating oil in the fourth pipe 54 through the second transverse hole 55. The lubricating oil enters the filter cartridge 510 through the gap between the conical plug 59 and the conical ring 514. The lubricating oil is filtered through the filter cartridge 510, and the filtered lubricating oil enters the oil tank 3 through the third pipe 51, so that the lubricating oil is filtered, the wear of the bearing by impurities is reduced, and it is beneficial to actual use.

[0033] When it is necessary to clean the impurities in the filter cartridge 510, the cover plate 52 is rotated, and the cover plate 52 drives the first cross bar 512 to move, and the restoring force of the spring 57 drives the second cross bar 513 to move, and the second cross bar 513 drives the conical plug 59 to move. After the first cross bar 512 and the second cross bar 513 are separated, the conical plug 59 contacts the conical ring 514 to block the fourth pipe 54, and then the cover plate 52 is continued to be rotated. After the cover plate 52 and the transverse cylinder 53 are separated, the cover plate 52 drives the filter cartridge 510 to be taken out from the transverse cylinder 53, and then the impurities in the filter cartridge 510 are cleaned. After the impurities are cleaned, the cover plate 52 of the filter assembly of the filter-type oil return assembly 5 is connected to the transverse cylinder 53, and the cover plate 52 drives the first cross bar 512 and the second cross bar 513 to fit and contact and push the second cross bar 513 to move, the spring 57 is in a compressed state, and the conical plug 59 does not contact the conical ring 514, so it is convenient to clean the impurities. The cooling assembly 8 includes an air outlet pipe 81, a fan 82, an air inlet pipe 83, a first transverse pipe 84, a serpentine pipe 85 and a second transverse pipe 86. The oil tank 3 is fixedly connected with the air inlet pipe 83 and the air outlet pipe 81. The inner end of the air inlet pipe 83 is fixedly connected with the second transverse pipe 86. The inner end of the air outlet pipe 81 is fixedly connected with the first transverse pipe 84. The serpentine pipe 85 is fixedly connected between the first transverse pipe 84 and the second transverse pipe 86. The outer end of the air inlet pipe 83 is fixedly connected with the output end of the fan 82. The serpentine pipe 85 is higher than the connection between the second pipeline 45 and the oil tank 3; The fan 82 of the cooling assembly 8 draws air into the air inlet pipe 83, then into the second transverse pipe 86, then into the serpentine pipe 85, into the first transverse pipe 84, and out of the air outlet pipe 81. The flowing air takes away the heat of the second transverse pipe 86, the serpentine pipe 85 and the first transverse pipe 84, which is beneficial to cool the lubricating oil; The oil-gas balance assembly 7 comprises an electric control valve 71, an air pipe 72, an oil film 73, a mounting pipe 74, a support seat 75 and an oil receiving barrel 76. The air pipe 72 is fixedly mounted on the top of the oil tank 3. The air pipe 72 is fixedly connected with the electric control valve 71. The air pipe 72 is fixedly connected with the support seat 75. The lower end of the air pipe 72 is threadedly connected with the oil receiving barrel 76. The top of the air pipe on the top of the support seat 75 is in contact with the oil film 73. The air pipe on the top of the support seat 75 is threadedly connected with the mounting pipe 74. The mounting pipe 74 is in contact with the outer edge of the top of the oil film 73. The pressure gauge 6 monitors the oil and gas pressure value of the oil tank 3. When the oil and gas pressure value is higher than the set value, the electric control valve 71 of the oil and gas balance component 7 is opened, and the oil and gas in the oil tank 3 enter the oil receiving barrel 76 through the air pipe 72. The oil and gas are separated by the installation pipe 74 and then discharged from the oil film 73, which is convenient for controlling the oil and gas pressure of the oil tank 3. At the same time, the lubricating oil in the oil and gas can be collected in the oil receiving barrel 76 to reduce the discharge of the lubricating oil in the oil and gas and avoid polluting the environment.

[0034] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for extending the service life of a roller bearing, comprising a bearing seat (1) and an oil tank (3), characterized in that: A bearing is coaxially fixedly installed in the bearing seat (1), and the bearing is fixedly connected to the roller shaft (2); The upper and lower ends of the bearing seat (1) are respectively connected to a refueling assembly (4) for filling bearing lubricating oil and a filtering oil return assembly (5) for recovering and filtering the lubricating oil; The oiling assembly (4) comprises an oil spray assembly and an oil pumping assembly, the oil pumping assembly is fixedly connected to the bearing seat (1), the oil pumping assembly is fixedly connected to the roller shaft (2), the oil pumping assembly is connected to the oil spray assembly, the oil spray assembly is connected to the upper end of the bearing seat (1), and the oil pumping assembly is also fixedly connected to the lower end of the side wall of the oil tank (3); The oil tank (3) is connected to a cooling assembly (8) for cooling the lubricating oil, and the cooling assembly (8) is higher than the contact portion between the refueling assembly (4) and the oil tank (3); A pressure gauge (6) for oil and gas pressure monitoring and an oil and gas balance component (7) for gas pressure balance are connected to the top of the oil tank (3), and the oil outlet end of the filter oil return component (5) is fixedly connected to the top of the oil tank (3).

2. The device for extending the service life of a roller bearing according to claim 1, characterized in that: The oil pumping assembly comprises a linkage assembly and a one-way oil supply assembly, the linkage assembly is connected to the roller shaft (2), the linkage assembly is fixedly connected to the one-way oil supply assembly, the one-way oil supply assembly is fixedly connected to the lower end of the side wall of the oil tank (3), and the one-way oil supply assembly is assembled with the oil injection assembly.

3. The device for extending the service life of a roller bearing according to claim 2, characterized in that: The oil injection assembly comprises a first pipeline (41), an oil injection hole (413) and a first transverse hole (414); the first pipeline (41) is connected to the one-way oil supply assembly; a group of first transverse holes (414) and two groups of oil injection holes (413) are provided in the bearing seat (1); the first transverse holes (414) and the oil injection holes (413) are communicated with each other, and the first transverse holes (414) are communicated with the first pipeline (41); and the liquid outlets of the two groups of oil injection holes (413) are arranged toward two sides of the bearing.

4. The device for extending the service life of a roller bearing according to claim 3, characterized in that: The linkage assembly comprises a first gear ring (46), a second gear ring (49) and a transverse shaft (410); the roller shaft (2) is fixedly mounted in a mounting hole of the first gear ring (46); the first gear ring (46) is meshingly connected with the second gear ring (49); the transverse shaft (410) is fixedly mounted in the mounting hole of the second gear ring (49); the transverse shaft (410) is fixedly connected to a side wall of a bearing seat (1) via a bearing; and the second gear ring (49) is connected to a one-way oil supply assembly.

5. The device for extending the service life of a roller bearing according to claim 4, characterized in that: The one-way oil supply assembly comprises a first one-way valve (42), a second one-way valve (43), a sleeve (44), a second pipeline (45), a bearing (47), a square frame (48), a slide rod (411), a mounting seat (412) and a piston (415). The mounting seat (412) is fixedly mounted on the side wall of the bearing seat (1). The sleeve (44) is mounted on the mounting seat (412). The piston (415) is slidably connected inside the sleeve (44). The top of the piston (415) is fixedly connected to the slide rod (411). The top of the slide rod (411) is fixedly connected to the square frame (48). The inner wall of the square frame (48) is movably connected to the outer wall of the outer ring of the bearing (47). The inner ring of the bearing (47) is fixedly connected to the side wall of the second gear ring (49); a second pipe (45) is fixedly connected to the through hole at the lower end of the sleeve (44); a second one-way valve (43) is installed on the second pipe (45); the lower end of the side wall of the sleeve (44) is connected to the first pipe (41) and fixedly connected; the first one-way valve (42) is fixedly installed on the first pipe (41); when the piston (415) moves upward, the second one-way valve (43) opens and the first one-way valve (42) closes; when the piston (415) moves downward, the first one-way valve (42) opens and the second one-way valve (43) closes; the second pipe (45) is fixedly connected to the lower end of the side wall of the oil tank (3).

6. The device for extending the service life of a roller bearing according to any one of claims 1 to 5, characterized in that: The filter-type oil return assembly (5) comprises a third pipe (51), an oil receiving assembly, a filter assembly and a follower-type plugging assembly. The third pipe (51) is fixedly mounted on the top of the oil tank (3), and a fourth pipe (54). The third pipe (51) is connected to the filter assembly, the filter assembly is connected to the oil receiving assembly, a follower-type plugging assembly is connected to the connection between the oil receiving assembly and the filter assembly, the oil receiving assembly is connected to the bearing seat (1), the follower-type plugging assembly is in an open state when the filter assembly is filtering, and the follower-type plugging assembly is in a blocked state when the filter assembly is cleaning impurities, thereby driving the oil receiving assembly to be in a blocked state.

7. The device for extending the service life of a roller bearing according to claim 6, characterized in that: The cooling assembly (8) comprises an air outlet pipe (81), a fan (82), an air inlet pipe (83), a first transverse pipe (84), a serpentine pipe (85) and a second transverse pipe (86); the oil tank (3) is fixedly connected to the air inlet pipe (83) and the air outlet pipe (81); the inner end of the air inlet pipe (83) is fixedly connected to the second transverse pipe (86); the inner end of the air outlet pipe (81) is fixedly connected to the first transverse pipe (84); the serpentine pipe (85) is fixedly connected between the first transverse pipe (84) and the second transverse pipe (86); and the outer end of the air inlet pipe (83) is fixedly connected to the output end of the fan (82).

8. The device for extending the service life of a roller bearing according to claim 7, characterized in that: The serpentine tube (85) is higher than the connection between the second pipeline (45) and the oil tank (3).

9. The device for extending the service life of a roller bearing according to any one of claims 7-8, characterized in that: The oil-gas balance assembly (7) comprises an electric control valve (71), an air pipe (72), an oil film (73), a mounting pipe (74), a support seat (75) and an oil receiving barrel (76). The air pipe (72) is fixedly mounted on the top of the oil tank (3). The air pipe (72) is fixedly connected to the electric control valve (71). The air pipe (72) is fixedly connected to the support seat (75). The lower end of the air pipe (72) is threadedly connected to the oil receiving barrel (76). The top of the air pipe on the top of the support seat (75) is in contact with the oil film (73). The air pipe on the top of the support seat (75) is threadedly connected to the mounting pipe (74). The mounting pipe (74) is in contact with the outer edge of the top of the oil film (73).

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