CN218761014U

CN218761014U - Hollow micropore lubricating rolling body ball cage coupling

Info

Publication number: CN218761014U
Application number: CN202320022322.0U
Authority: CN
Inventors: 秦志洪; 张艺炜; 刘玉波; 王磊; 李文喜
Original assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Current assignee: Xiangyang Boya Precision Industrial Equipments Co Ltd
Priority date: 2023-01-05
Filing date: 2023-01-05
Publication date: 2023-03-28
Anticipated expiration: 2033-01-05

Abstract

A hollow micropore lubrication rolling body ball cage coupler is used in the fields of metallurgy, nonferrous metals and petroleum machinery. The driven and driving shafts are respectively connected with a driven shaft flange and a driving shaft flange, the outer rings of the driven and driving ends are respectively connected with an intermediate shaft through rolling bodies in a retainer and the retainer, the outer rings of the driven and driving ends are respectively connected with the driven and driving shaft flanges, the end surfaces of the outer rings of the driven and driving ends are respectively provided with a sealing system, two ends of the intermediate shaft are axially provided with holes, a mandril base and a mandril are arranged in the holes, the end part of the mandril is provided with a retainer ring, the mandril is screwed on a bolt, and the bolt is sleeved with a spring. The utility model discloses because the inside packing of cavity micropore lubrication rolling element has lubricating grease, has improved the inside lubricated environment of ball cage shaft coupling, has reduced inside and outside lane channel wearing and tearing, but compensating shaft coupling radial and axial error for the fatigue life of shaft coupling improves by a wide margin, under the same service behavior, has improved the factor of safety of shaft coupling, has reduced the unsafe factor that the shaft coupling caused because of fatigue failure.

Description

Hollow micropore lubricating rolling body ball cage coupling

Technical Field

The utility model relates to a machine-building technical field specifically is a lubricated rolling element ball cage shaft coupling of cavity micropore for on metallurgical, non ferrous metal, the petroleum machinery.

Background

The existing ball cage coupler mainly comprises a driving shaft, a driven shaft, an intermediate shaft, an outer ring, an inner ring, a retainer, a rolling body, a sealing system and the like, wherein a plurality of straight channels with oval or circular cross sections are uniformly distributed on the driving shaft and the outer ring along the circumference, and torque is transmitted (or reversely transmitted) through the driving shaft channels, the rolling body and the two outer ring channels to realize power transmission of the driving end and the driven end; the retainer is used for enabling the rolling body to be positioned on an angular bisector of the transmission shaft and the outer ring channel when the rolling body runs; the inside of the sealing system is filled with long-acting lubricating grease which has good ageing resistance and contains extreme pressure additive. The axial and angular compensation is realized by rolling of the rolling bodies between the straight channels, and the constant speed can be completely realized within the limit angle of the space design. However, the failure of the ball cage coupler is mostly caused by fatigue wear of the inner and outer ring raceways, and after the fatigue wear of the inner and outer rings fails, the rolling bodies in the ball cage coupler are hardly worn or are worn very little, so that the wear degrees of the inner and outer rings and the rolling bodies are asynchronous.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide the hollow micropore lubrication rolling body ball cage coupler, which replaces the solid rolling body with the hollow micropore lubrication rolling body so as to prolong the fatigue service life of the ball cage coupler.

In order to achieve the purpose, the driving shaft of the utility model is connected with a driving shaft flange through a connecting key, the outer ring of the driving end of an intermediate shaft is connected with the driving shaft flange through a bolt and a key, a plurality of raceways which are distributed equidistantly along the circumference are arranged on the outer ring of the driving end and the outer ring of a driven end, a first rolling body and a second rolling body are arranged between the raceways of the intermediate shaft, the first rolling body and the second rolling body are arranged in windows of a first retainer and a second retainer, the end parts of the outer ring of the driving end and the outer ring of the driven end are provided with a sealing system, the outer ring of the driven end is connected with a driven shaft flange through a bolt and a key, and the driven shaft is connected with the driven shaft flange through a flat key; the two ends of the intermediate shaft are provided with elastic ejector rod devices, the elastic ejector rod devices are a first ejector rod seat and a first ejector rod which are arranged in a shaft hole at the driving end of the intermediate shaft, the end part of the first ejector rod is provided with a first clamping ring, the first ejector rod is screwed on a first bolt, and the first bolt is sleeved with a first spring; a second ejector rod seat and a second ejector rod are arranged in a driven end shaft hole of the intermediate shaft, a second clamping ring is arranged at the end part of the second ejector rod, the second ejector rod is screwed on a second bolt, and a second spring is sleeved on the second bolt; the first rolling body and the second rolling body are hollow micropore lubrication rolling bodies.

Furthermore, the rolling element I and the rolling element II are of hollow structures, lubricating grease is filled in the hollow structures, and micropores are distributed in the wall thickness direction.

Furthermore, the raceways distributed on the driving end outer ring and the driven end outer ring and the raceways on the intermediate shaft are arc channels, straight channels or v-shaped channels.

Furthermore, an end cover of the sealing system is fixed on an outer ring of a driven end by a screw, a first oil cup for supplementing lubricating grease to the rolling body is arranged on a first end cover, a first retainer ring and a first hoop fix and tighten a first bowl-shaped seal on the intermediate shaft, and the first bowl-shaped seal is arranged in the first end cover; the two-purpose screw of end cap fixes on the driving end outer ring, the oil cup two used for supplementing the lubricating grease to the rolling element is set on the end cap two, the retaining ring two, the clamp two fix and tighten the bowl type sealing two on the middle shaft, the bowl type sealing two is installed in the end cap two.

Furthermore, the first rolling body and the second rolling body are steel balls or spherical rollers.

Compared with the prior art, the utility model, have following advantage:

1. from the aspect of product safety, as the hollow micropore lubrication rolling element is filled with lubricating grease, the internal lubrication environment of the hollow micropore lubrication rolling element ball cage coupler is improved, the abrasion of the inner and outer ring channels is reduced, the radial and axial errors of the coupler can be compensated, the fatigue service life of the ball cage coupler is greatly prolonged, the safety factor of the hollow micropore lubrication rolling element ball cage coupler is improved under the same use working condition, the unsafe factors of the ball cage coupler caused by fatigue failure are reduced, and the cost performance advantage of the ball cage coupler is exerted to the maximum extent.

2. The cost increase of manufacturing the hollow micropore lubrication rolling body is small compared with the cost increase of manufacturing the rolling body with the same specification, particularly, the proportion of the cost increase of the hollow micropore lubrication rolling body is smaller, the overall quality of the ball cage coupler is reduced more, and the advantages of life design of key parts and the like in the hollow micropore lubrication rolling body cage coupler can be exerted to the maximum extent.

3. The shutdown maintenance time in the life cycle of replacing the hollow micropore lubrication rolling body coupler can be shortened, and the improvement of the economic benefit of continuous production in metallurgy, nonferrous metal and petroleum industries is more obvious.

Drawings

Fig. 1 is a structural diagram of the rolling body of the present invention being a steel ball.

Fig. 2 is an enlarged view of the place where the rolling elements of fig. 1 are mounted as steel balls.

Fig. 3 is a structural diagram of the spherical roller as the rolling element of the present invention.

Fig. 4 is an enlarged view of the installation site of fig. 3 where the rolling elements are spherical rollers.

Detailed Description

As shown in fig. 1, 2, 3, 4, the driving shaft 16 of the present invention is connected with a driving shaft flange 15 through a connection key, the driving end outer ring 12 of the intermediate shaft is connected with the driving shaft flange 15 through bolts and keys, the driving end outer ring 12 and the driven end outer ring 3 are provided with a plurality of raceways equidistantly distributed along the circumference, and a rolling element one 13 and a rolling element two 4 are installed between the raceways of the intermediate shaft 11, the raceways distributed on the driving end outer ring 12 and the driven end outer ring 3 and the raceways on the intermediate shaft 11 are arc channels, straight channels or v-shaped channels, the rolling element one 13 and the rolling element two 4 are installed in the windows of the retainer one 14 and the retainer two 5, the end portions of the driving end outer ring 12 and the driven end outer ring 3 are provided with a sealing system, the driven end outer ring 3 is connected with the driven shaft flange 2 through bolts and keys, and the driven shaft 1 is connected with the driven shaft flange 2 through a flat key; the two ends of the intermediate shaft 11 are provided with elastic mandril devices, wherein a mandril seat I20 and a mandril I17 are arranged in a driving end shaft hole of the intermediate shaft 11, the end part of the mandril I17 is provided with a retainer ring I18, the mandril I17 is screwed on a bolt I21, and a spring I19 is sleeved on the bolt I21; a second ejector rod seat 28 and a second ejector rod 31 are arranged in a driven end shaft hole of the intermediate shaft 11, a second clamping ring 30 is arranged at the end part of the second ejector rod 31, the second ejector rod 31 is screwed on a second bolt 27, and a second spring 29 is sleeved on the second bolt 27; an end cover I6 of the sealing system is fixed on an outer ring 3 of a driven end by screws, an oil cup I7 used for supplementing lubricating grease to a rolling body is arranged on the end cover I6, a bowl-shaped seal I8 is fixed and fastened on an intermediate shaft 11 by a check ring I9 and a hoop I10, and the bowl-shaped seal I8 is arranged in the end cover I6; the second end cover 22 is fixed on the driving end outer ring 12 through screws, the second oil cup 23 used for supplementing lubricating grease to the rolling body is arranged on the second end cover 22, the second bowl-shaped sealing ring 24 is fixed and fastened on the middle shaft 11 through the second check ring 25 and the second hoop 26, and the second bowl-shaped sealing ring 24 is arranged in the second end cover 22.

The first rolling element 13 and the second rolling element 4 are steel balls (as shown in fig. 1 and 2) or spherical rollers (as shown in fig. 3 and 4).

The utility model discloses in the window of drive end outer lane 12, jackshaft 11, holder 14 and holder two 5 between driven end outer lane 3, install cavity micropore lubrication rolling element 13 and cavity micropore lubrication rolling element two 4, rolling element 13 is hollow with the inside of rolling element two 4, it has lubricating grease 32 to fill before the assembly, and open the many micropores 33 that have the equipartition on the rolling element wall thickness, the size of micropore 33 can be confirmed according to rolling element 13 and rolling element two 4's diameter size and lubricating grease 33's brand, for phi 0.1-phi 0.3mm. During the swinging and rotation of the ball cage coupler in the working process, the temperature of the first internal rolling body 13 and the second internal rolling body 4 can rise, and the internal lubricating grease 32 can overflow through the micropores 33 to lubricate the contact stress part of the rolling bodies, so that the lubrication of the internal channel of the whole ball cage coupler is improved, the abrasion of the channel is reduced, the quality of the solid rolling bodies, particularly large-size rolling bodies is reduced, the inner ring and the outer ring of the ball cage coupler and the hollow micropore lubrication rolling bodies in the ball cage coupler are designed to have the same service life, the radial and axial errors of the ball cage coupler are compensated, the cost performance advantage of the ball cage coupler is furthest played, and the overall fatigue life of the ball cage coupler is prolonged. If the ball cage coupler is maintained, lubricating grease 32 can be supplemented into the hollow micropore lubrication rolling body, so that the service life of the whole ball cage coupler is prolonged.

Claims

1. The utility model provides a lubricated rolling element ball cage shaft coupling of cavity micropore which characterized in that: the driving shaft (16) is connected with a driving shaft flange (15) through a connecting key, an outer ring (12) of a driving end of an intermediate shaft is connected with the driving shaft flange (15) through bolts and keys, a plurality of raceways which are distributed equidistantly along the circumference are arranged on the outer ring (12) of the driving end and the outer ring (3) of a driven end, a first rolling body (13) and a second rolling body (4) are arranged between the raceways of the intermediate shaft (11), the first rolling body (13) and the second rolling body (4) are arranged in windows of a first retainer (14) and a second retainer (5), a sealing system is arranged at the end parts of the outer ring (12) of the driving end and the outer ring (3) of the driven end, the outer ring (3) of the driven end is connected with a driven shaft flange (2) through bolts and keys, and the driven shaft (1) is connected with the driven shaft flange (2) through a flat key; the two ends of the intermediate shaft (11) are provided with elastic mandril devices, a mandril seat I (20) and a mandril I (17) are arranged in a shaft hole at the driving end of the intermediate shaft (11), a clamping ring I (18) is arranged at the end part of the mandril I (17), the mandril I (17) is screwed on a bolt I (21), and a spring I (19) is sleeved on the bolt I (21); a second ejector rod seat (28) and a second ejector rod (31) are arranged in a driven end shaft hole of the intermediate shaft (11), a second clamping ring (30) is arranged at the end part of the second ejector rod (31), the second ejector rod (31) is screwed on the second bolt (27), and a second spring (29) is sleeved on the second bolt (27); the first rolling body (13) and the second rolling body (4) are hollow micropore lubrication rolling bodies.

2. The hollow micropore lubrication rolling element ball cage coupling of claim 1, wherein: the rolling element I (13) and the rolling element II (4) are of hollow structures, lubricating grease (32) is filled in the hollow structures, and micropores (33) are distributed in the wall thickness direction.

3. The hollow micropore lubrication rolling element ball cage coupling of claim 1, wherein: the raceways distributed on the driving end outer ring (12) and the driven end outer ring (3) and the raceways on the intermediate shaft (11) are arc channels, straight channels or v-shaped channels.

4. The hollow microcellular lubricated rolling element ball cage coupling according to claim 1, wherein: an end cover I (6) of the sealing system is fixed on an outer ring (3) of a driven end by a screw, an oil cup I (7) used for supplementing lubricating grease to a rolling body is arranged on the end cover I (6), a bowl-shaped sealing I (8) is fixed and fastened on an intermediate shaft (11) by a check ring I (9) and a hoop I (10), and the bowl-shaped sealing I (8) is arranged in the end cover I (6); the second end cover (22) is fixed on the outer ring (12) of the driving end through screws, the second oil cup (23) used for supplementing lubricating grease to the rolling body is arranged on the second end cover (22), the second bowl-shaped sealing ring (24) is fixed and fastened on the middle shaft (11) through the second check ring (25) and the second hoop (26), and the second bowl-shaped sealing ring (24) is arranged in the second end cover (22).

5. The hollow microcellular lubricated rolling element ball cage coupling according to claim 1, wherein: the rolling bodies I (13) and II (4) are steel balls or spherical rollers.