CN211398273U

CN211398273U - Cylindrical roller bearing of high-speed iron retainer

Info

Publication number: CN211398273U
Application number: CN202020081759.8U
Authority: CN
Inventors: 秦贞山; 彭飞腾; 余剑
Original assignee: Awd Bearing Corp
Current assignee: Awd Bearing Corp
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-09-01
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a high-speed railway holder cylindrical roller bearing, including the inner circle, the all sides rolling contact of inner circle has a plurality of rollers, and is a plurality of all sides rolling contact of roller has the outer lane, and is a plurality of the both ends sliding contact of roller has a pearl, both ends the outside of top pearl is fixedly connected with retaining ring, both ends to the back fixedly connected with of department between the retaining ring, the center department both sides fixedly connected with isolating bar of dead lever, both ends the retaining ring is provided with the round hole in the junction with the retaining bar, the dead lever is inserted and is connected in the round hole of retaining ring. Through setting up single roller, top pearl and spacer bar, use the single roller to bear radial load, because axial load is less, need not to worry that the inner circle is pushed away from the outer lane, and in order to guarantee high-speed rotation, reduce frictional force, confirm the position of each roller through setting up top pearl and spacer bar, reduce the contact surface and further reduce frictional force, improve the rotational speed that the bearing can bear.

Description

Cylindrical roller bearing of high-speed iron retainer

Technical Field

The utility model relates to a high-speed bearing field especially relates to a high-speed iron holder cylindrical roller bearing.

Background

A compressor (compressor), which is a driven fluid machine that raises low-pressure gas into high-pressure gas, is a heart of a refrigeration system. The refrigerating cycle is powered by sucking low-temperature and low-pressure refrigerant gas from the air suction pipe, driving the piston to compress the refrigerant gas through the operation of the motor, and discharging high-temperature and high-pressure refrigerant gas to the exhaust pipe.

During the operation of the compressor, the bearings mainly bear radial load, the rotating speed is generally high, and the high-speed rotation causes the temperature of the bearings to be increased sharply, so that the performance of the bearings is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a high-speed iron retainer cylindrical roller bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high-speed iron holder cylindrical roller bearing, includes the inner circle, all sides rolling contact of inner circle has a plurality of rollers, and is a plurality of all sides rolling contact of roller has the outer lane, and is a plurality of both ends sliding contact of roller has a pearl, both ends the outside of top pearl is fixedly connected with retaining ring, both ends fixedly connected with dead lever between the retaining ring, the center department both sides fixedly connected with spacer bar, both sides of dead lever spacer bar and roller sliding contact.

As a further description of the above technical solution:

a small gap is reserved between the isolating rod and the roller, an arc-shaped groove is arranged on the isolating rod in contact with the roller, and the radian of the arc-shaped groove corresponds to that of the roller.

As a further description of the above technical solution:

the contact position of the top bead and the roller at two ends is hemispherical, and the corresponding disc is arranged at the connection position of the retaining ring and the top bead.

As a further description of the above technical solution:

the holding rings at two ends are provided with round holes at the joints with the fixing rods, and the fixing rods are inserted into the round holes of the holding rings.

As a further description of the above technical solution:

the rollers are cylindrical, grooves corresponding to the heights of the rollers are formed in the inner side of the outer ring, and the grooves corresponding to the heights of the rollers are formed in the outer side of the inner ring.

As a further description of the above technical solution:

and a gap is reserved at the contact position of the inner ring and the roller, and a gap is reserved at the contact position of the outer ring and the roller.

The utility model discloses following beneficial effect has:

1. the utility model discloses a set up single roller, top pearl and isolating rod, use the single roller to bear radial load, because axial load is less, need not anxious inner circle and pushed away from the outer lane, and rotate at a high speed in order to guarantee, reduce frictional force, confirm the position of each roller through setting up top pearl and isolating rod, reduce the contact surface and further reduce frictional force, improve the rotational speed that the bearing can bear.

2. The utility model discloses a set up the dead lever and keep the ring for the vulnerable bearing can be convenient dismantle the change in high-speed rotation.

Drawings

Fig. 1 is a cross-sectional view of a high-speed iron cage cylindrical roller bearing according to the present invention;

fig. 2 is an expanded view of a retaining ring of a high-speed iron retainer cylindrical roller bearing provided by the present invention;

fig. 3 is a top view of the high-speed iron cage cylindrical roller bearing provided by the present invention.

Illustration of the drawings:

1. an inner ring; 2. an outer ring; 3. a retaining ring; 4. a roller; 5. a top bead; 6. fixing the rod; 7. a spacer rod.

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.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a high-speed iron holder cylindrical roller bearing, including inner circle 1, the all sides rolling contact of inner circle 1 has a plurality of rollers 4, all sides rolling contact of a plurality of rollers 4 has outer lane 2, the both ends sliding contact of a plurality of rollers 4 has a pearl 5, guarantee that every roller 4 is the parallel and level, the outside back fixedly connected with retainer ring 3 of both ends top pearl 5, support for dead lever 6 and spacer bar 7 provide, fixedly connected with dead lever 6 between the retainer ring 3 of both ends, dead lever 6 is used for confirming the distance between two retainer rings 3, the center department both sides fixedly connected with spacer bar 7 of dead lever 6, separate between every roller 4, both sides spacer bar 7 and roller 4 sliding contact.

The isolating rod 7 is provided with a small gap between the isolating rod 7 and the roller 4 to avoid being stuck, the isolating rod 7 is provided with an arc-shaped groove in contact with the roller 4, and the radian of the arc-shaped groove corresponds to that of the roller 4, so that the contact surface of the isolating rod 7 and the roller 4 is completely attached during contact. The contact department of both ends top pearl 5 and roller 4 sets up to the hemisphere, avoids retaining ring 3 and roller 4 contact, sets up to the sphere and reduces frictional force, and retaining ring 3 is provided with the disc that corresponds in the junction with top pearl 5. The retaining rings 3 at two ends are provided with round holes at the joints with the fixing rods 6, and the fixing rods 6 are inserted into the round holes of the retaining rings 3, so that the retainer is convenient to replace. The plurality of rollers 4 are cylindrical, grooves corresponding to the heights of the rollers 4 are formed in the inner side of the outer ring 2, grooves corresponding to the heights of the rollers 4 are formed in the outer side of the inner ring 1, the rollers 4 are arranged between the inner ring 1 and the outer ring 2, and the positions of the rollers 4, the outer ring and the inner ring are limited through the grooves. A gap is reserved at the contact position of the inner ring 1 and the roller 4, and a gap is reserved at the contact position of the outer ring 2 and the roller 4, so that direct blocking during rotation is avoided.

The working principle is as follows: through setting up single roller 4, ejector pin 5, and isolating rod 7, use single roller 4 to bear radial load, because axial load is less, need not to worry that inner circle 1 is pushed away from outer lane 2, and in order to guarantee high-speed rotation, reduce frictional force, confirm the position of each roller 4 through setting up ejector pin 5 and isolating rod 7, the top of ejector pin 5 is smooth sphere, isolating rod 7 and roller 4's the smooth contact of contact surface, and whole remaining space is great, convenient heat dissipation, it further reduces frictional force to reduce the contact surface, improve the rotational speed that the bearing can bear.

Claims

1. The utility model provides a high-speed railway holder cylindrical roller bearing, includes inner circle (1), its characterized in that: all sides rolling contact of inner circle (1) has a plurality of roller (4), and is a plurality of all sides rolling contact of roller (4) has outer lane (2), and is a plurality of both ends sliding contact of roller (4) has top pearl (5), both ends the outside of top pearl (5) is to fixedly connected with retaining ring (3) of department of dorsad, both ends fixedly connected with dead lever (6) between retaining ring (3), the center department both sides fixedly connected with spacer bar (7) of dead lever (6), both sides spacer bar (7) and roller (4) sliding contact.

2. The high-speed iron cage cylindrical roller bearing of claim 1, wherein: a small gap is reserved between the isolating rod (7) and the roller (4), an arc-shaped groove is arranged on the isolating rod (7) in contact with the roller (4), and the radian of the arc-shaped groove corresponds to that of the roller (4).

3. The high-speed iron cage cylindrical roller bearing of claim 1, wherein: the contact position of the top bead (5) and the roller (4) at two ends is hemispherical, and the corresponding disc is arranged at the connection position of the retaining ring (3) and the top bead (5).

4. The high-speed iron cage cylindrical roller bearing of claim 1, wherein: the holding rings (3) at the two ends are provided with round holes at the joints with the fixing rods (6), and the fixing rods (6) are inserted into the round holes of the holding rings (3).

5. The high-speed iron cage cylindrical roller bearing of claim 1, wherein: the rollers (4) are cylindrical, grooves corresponding to the heights of the rollers (4) are formed in the inner side of the outer ring (2), and grooves corresponding to the heights of the rollers (4) are formed in the outer side of the inner ring (1).

6. The high-speed iron cage cylindrical roller bearing of claim 1, wherein: a gap is reserved at the contact position of the inner ring (1) and the roller (4), and a gap is reserved at the contact position of the outer ring (2) and the roller (4).