CN215110170U

CN215110170U - Novel cross package end cover structure

Info

Publication number: CN215110170U
Application number: CN202120351710.4U
Authority: CN
Inventors: 丁飞; 王月月; 沈一名; 吴浩东
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2021-02-05
Filing date: 2021-02-05
Publication date: 2021-12-10
Anticipated expiration: 2031-02-05

Abstract

The utility model discloses a novel cross-shaped bag sealing end cover structure, which comprises a cross shaft, a bearing outer ring, an end cover and a roller; the roller is sleeved on the cross shaft; the bearing outer ring is sleeved on the outer side of the roller, a plurality of threaded blind holes are uniformly formed in the end portion of the bearing outer ring along the circumference, the end cover is connected with the end cover through bolts, and the inner side of the end cover and the outer side of the bearing outer ring are seamlessly attached to the threaded connection position. The utility model discloses mainly to current cross package end cover structure after long-time the use, because of the bolt hole is the through-hole, easily cause sewage to get into the inside problem of end cover from the bolt, this structural seal is effectual and be difficult for intaking, can effectively prolong the life of cross package, and then has prolonged the life of the shaft type universal shaft coupling of cross.

Description

Novel cross package end cover structure

Technical Field

The utility model belongs to the field of machinery, a cross package end cover structure of SWC type cross shaft type universal shaft coupling is related to.

Background

In recent years, the world economy has been increased at a low speed for a long time, the global economic imbalance is increased, the steel industry faces strong market competition, the profit space of the whole industry is compressed and even lost, and the steel enterprises put forward higher requirements on the quality of equipment. The universal spindle is used as a conventional loss part of a steel rolling production line, and the service life of the universal spindle directly influences the yield of the steel rolling production line and the spare part cost.

The SWC type integral fork cross shaft type universal shaft coupler is a conventional form of a cross shaft type universal shaft coupler and is widely applied to industries such as steel, wind power, cement, ships and the like. The most common damaged part of the cross-axle type universal shaft coupler is a cross-shaped bag, and a waterproof end cover is usually designed on the outer side of the cross-shaped bag under a severe working condition; as shown in fig. 1 and 2, in the conventional cross-shaped bag sealing end cover structure, a roller 11 is arranged on the outer side of a cross shaft 1, a bearing outer ring 2 is sleeved on the outer side of the roller 11, and the bearing outer ring 2 and an end cover 6 are connected and fixed through a bolt 7, wherein a bolt hole formed in the bearing outer ring 2 is a through hole, the end cover 6 is not in contact with the bearing outer ring 2, and an O-shaped sealing ring is arranged around the bolt 7 for sealing, and a threaded hole connected with the bolt is opened, so that the sealing of a thread is not considered, and no influence is caused in a short period, but under a severe working condition, sewage continuously washes the end cover, so that the time is long, the sewage permeates into the bearing from a gap of the thread, and the service life of a cross-shaped bag is influenced; in addition, the cross-shaped bag is rotated at a high speed for a long time, the bolts are loosened or even fall off, and sewage directly enters the bearing through the bolt holes as long as one bolt falls off, so that the damage of the cross-shaped bag bearing is accelerated, the service life of the universal joint shaft is shortened, the production plan of a steel rolling production line is disturbed, and the spare part loss of a steel mill is increased.

SUMMERY OF THE UTILITY MODEL

To the current cross package sealed end cover structure that exists among the background art after long-time the use, because of the bolt hole is the through-hole, easily cause sewage to get into the inside problem of end cover from the bolt department, the utility model provides a novel cross package sealed end cover structure, it is sealed effectual and difficult intaking has prolonged the life of cross package, and then has prolonged the life of the shaft-like universal shaft coupling of cross.

The utility model provides a technical problem's technical scheme as follows:

the utility model relates to a novel cross-shaped bag sealing end cover structure, which comprises a cross shaft, a bearing outer ring, an end cover and a roller; the roller is sleeved on the cross shaft; the bearing outer ring is sleeved on the outer side of the roller, a plurality of threaded blind holes are uniformly formed in the end portion of the bearing outer ring along the circumference, the end cover is connected with the end cover through bolts, and the inner side of the end cover and the outer side of the bearing outer ring are seamlessly attached to the threaded connection position.

As the utility model discloses technical scheme's further improvement, the mounting groove has been seted up at bolt mounted position's inboard to the end cover, installs shockproof component in the mounting groove, and this shockproof component all in close contact with bearing inner race's end cover.

As a further improvement of the technical scheme of the utility model, the shockproof component is the sealing washer.

As the technical scheme of the utility model further improve, still be provided with the retaining ring between the border department of bearing inner race and the border department of end cover.

As a technical scheme of the utility model further improve, the outer circle step has been seted up to the border department inboard of end cover, is provided with the border sealing washer on this outer circle step.

As a further improvement of the technical scheme of the utility model, the center department of end cover is provided with the glib talker.

Compared with the prior art, the utility model has novel structural design, simple and practical transformation and manufacture, changes the threaded hole into a blind hole by changing the position of the thread, and the end cover at the threaded connection part is seamlessly attached to the outer ring of the bearing, thereby avoiding the sewage from entering the inside of the bearing due to the loosening of the bolt, and in addition, the sewage can not enter the cross-shaped bag even if 1-2 bolts drop; in addition, a vibration-proof element is additionally arranged at a gap between the end cover and the bearing outer ring, so that the vibration generated in the high-speed rotation process of the end cover can be effectively reduced.

Therefore, the novel cross-shaped bag sealing end cover is good in waterproof effect and not easy to enter water, the sealing performance of the cross-shaped bag can be effectively improved, the service life of the cross-shaped bag is prolonged, and the service life of the cross-shaped shaft type universal shaft coupler is prolonged.

Drawings

FIG. 1 is a schematic structural view of a prior art cruciform packet end closure;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a schematic structural view of a cross-shaped bag sealing end cap of the present invention;

FIG. 4 is an enlarged schematic view at B in FIG. 3;

in the figure: 1: a cross shaft; 2: a bearing outer race; 3: a retainer ring; 4: a nozzle tip; 5: an edge sealing ring; 6: an end cap; 7: a bolt; 8: a shock-proof element; 9: a threaded blind hole; 10. mounting groove 11, roller.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The parts of the present invention not described in detail are the known techniques of those skilled in the art.

As shown in fig. 3 and 4, the novel cross-shaped bag sealing end cover structure of the present invention comprises a cross shaft 1, a bearing outer ring 2, an end cover 6 and a roller 11; the roller 11 is sleeved on the cross shaft 1; the bearing outer ring 2 is sleeved outside the roller 11, a plurality of threaded blind holes 9 are uniformly formed in the end portion of the bearing outer ring along the circumference, the end portion of the bearing outer ring is connected with an end cover 6 through bolts 7, and the inner side of the end cover 6 is in seamless fit with the outer side of the bearing outer ring 2 at the threaded connection position. Through set up screw thread blind hole 9 on bearing inner race 2 can avoid sewage to get into cross package inside from the screw thread, in addition, the inboard seamless laminating in threaded connection department of end cover 6 in this example and the bearing inner race 2 outside, the benefit of design like this is that even water gets into the end cover through the screw hole gap, nevertheless because the seamless laminating of contact surface, water still can't get into other positions of bearing inner race through the binding surface.

In this embodiment, in order to ensure seamless joint of the bolt connection, a gap must be designed on other steps, but under high-speed operation, the end cover may vibrate due to the gap, in order to avoid this phenomenon, a shock-proof element 8 is added, which can avoid the problem that an installation groove 10 is formed in the inner side of the end cover 6 at the inner side of the installation position of the bolt 7, the shock-proof element 8 is installed in the installation groove 10, and the shock-proof element 8 is in close contact with the end cover 6 of the bearing outer ring 2. Further, the shock-proof element 8 may be configured as a sealing ring.

In this embodiment, a retainer ring 3 is further disposed between the edge of the bearing outer ring 2 and the edge of the end cover 6.

In this embodiment, the edge of end cover 6 is located the inboard and has been seted up the excircle step, is provided with border sealing washer 5 on this excircle step, further promotes waterproof ability.

In this embodiment, a nozzle 4 is disposed at the center of the end cover 6, and is used for adding lubricating grease to the bearing.

The utility model discloses cross package end cover structure has effectively avoided external cooling water direct and bearing inner race contact, avoids corroding the bearing inner race, compares current structure, the utility model discloses can also avoid water to get into inside the cross package, therefore this kind of novel cross package end cover's water-proof effects is good, the reliability is high, can effectively prolong the life of cross package.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a novel cross package end cover structure which characterized in that: the cross shaft bearing comprises a cross shaft (1), a bearing outer ring (2), an end cover (6) and a roller (11); the roller (11) is sleeved on the cross shaft (1); the bearing outer ring (2) is sleeved on the outer side of the roller (11), a plurality of threaded blind holes (9) are uniformly formed in the end portion of the bearing outer ring along the circumference, an end cover (6) is connected with the outer side end of the bearing outer ring through bolts (7), and the inner side of the end cover (6) is in seamless fit with the outer side of the bearing outer ring (2) at the threaded connection position.

2. The novel cross-shaped bag end closure structure of claim 1, wherein: the inner side of the end cover (6) is provided with a mounting groove (10) at the inner side of the mounting position of the bolt (7), a shockproof element (8) is mounted in the mounting groove (10), and the shockproof element (8) is in close contact with the end cover (6) of the bearing outer ring (2).

3. The novel cross-shaped bag end closure structure of claim 2, wherein: the shockproof element (8) is a sealing ring.

4. A novel cross-shaped bag end closure structure according to any one of claims 1 to 3, wherein: and a check ring (3) is also arranged between the edge of the bearing outer ring (2) and the edge of the end cover (6).

5. The novel cross-shaped bag end closure structure of claim 4, wherein: an outer circle step is arranged on the inner side of the edge of the end cover (6), and an edge sealing ring (5) is arranged on the outer circle step.

6. The novel cross-shaped bag end closure structure according to any one of claims 1-3 and 5, wherein: and the center of the end cover (6) is provided with an oil nozzle (4).

7. The novel cross-shaped bag end closure structure of claim 4, wherein: and the center of the end cover (6) is provided with an oil nozzle (4).