CN209818523U - Self-aligning roller bearings for high-efficiency mills - Google Patents

Abstract

The utility model discloses a special-purpose self-aligning roller bearing for a high-efficiency pulverizer, which includes a shaft seat, a sealing ring, a hollow core and a roller head, and is characterized in that: a hollow core is arranged at the middle position inside the shaft seat, and the hollow core Bearing sleeves are installed on both sides of the outside, and an inner sealing ring is installed on the outer ring of the hollow core, and a fixing groove is installed in the middle of the outer ring of the shaft seat, and the fixing groove and the shaft seat cooperate with each other. The bearings cooperate with each other to form a snap-fit structure, and the interior of the shaft seat is uniformly provided with moving oil seepage holes, and the fixed groove and the moving oil seepage holes cooperate with each other to form a uniform oil leakage structure. The utility model is provided with moving oil seepage holes cooperating with the rollers at the position where the shaft seat is connected with the rollers, and the moving oil seepage holes and the rollers cooperate with each other to form a falling-off structure, which can prevent the device from falling off. The derailment caused by rotation during use prevents the rollers from loosening and affecting normal use.

Description

Self-aligning roller bearings for high-efficiency mills

technical field

The utility model relates to the technical field of roller bearings, in particular to a special self-aligning roller bearing for a high-efficiency mill.

Background technique

Spherical roller bearings are divided into two different structures: symmetrical spherical rollers and asymmetric spherical rollers according to the cross-sectional shape of the rollers. At present, symmetric spherical roller bearings are rarely used. The internal structure has been comprehensively improved in design and parameter optimization. Compared with the early production of spherical roller bearings, it can withstand larger axial loads.

The existing self-aligning roller bearings, in the process of use, because the rollers inside the device need to rotate, the rollers of the device are easy to fall off after long-term use, shortening the service life. At the same time, the self-aligning roller bearings When in use, the temperature is low, which will cause uneven distribution of lubricating oil, resulting in greater wear of the rollers inside the device.

Utility model content

The purpose of this utility model is to provide special self-aligning roller bearings for high-efficiency pulverizers, in order to solve the existing self-aligning roller bearings proposed in the above-mentioned background technology. In the process of use, the rollers inside the device need to rotate , the rollers of the device are easy to fall off after long-term use, shortening the service life. At the same time, when the self-aligning roller bearing is in use, the temperature is low, which will make the lubricating oil distribution uneven, resulting in greater wear of the rollers inside the device. big and other issues.

In order to achieve the above purpose, the utility model provides the following technical solutions: special spherical roller bearings for high-efficiency mills, including shaft seats, sealing rings, hollow cores and roller heads, and the middle position inside the shaft seats is provided with a hollow Core, bearing sleeves are installed on both sides of the hollow core, and an inner sealing ring is installed on the outer ring of the hollow core, and a fixed ring is installed in the middle of the shaft seat on the outer ring of the inner sealing ring, and fixed Rollers are evenly spaced on the ring, and a fixed groove is installed in the middle of the outer ring of the shaft seat. The fixed groove and the shaft seat cooperate with other bearings to form a snap-fit structure. The moving oil seepage hole, and the fixed groove and the moving oil seepage hole cooperate with each other to form a uniform oil leakage structure.

Preferably, the position where the shaft seat is connected to the roller is provided with a moving oil seepage hole that cooperates with the roller, and the moving oil seepage hole cooperates with the roller to form a release structure.

Preferably, a first dust-proof sealing ring is installed at the bottom end on one side outside the hollow core, and a second dust-proof sealing ring is installed on the bottom end on the other side outside the hollow core.

Preferably, a base matching core is installed inside the shaft seat at the bottom of the hollow core, and outer sealing rings are uniformly installed on the bottom of the base matching core.

Preferably, a roller head is installed on the end of the roller away from the shaft seat, and the roller and the roller head cooperate with each other to form a rolling structure.

Preferably, a central pressure relief slit hole is installed at a middle position inside the roller, and the central pressure relief slit hole cooperates with the roller to form a pressure relief structure.

Compared with the prior art, the beneficial effect of the utility model is: the self-aligning roller bearing dedicated to the high-efficiency pulverizer is equipped with a movement that cooperates with the roller at the position where the shaft seat is connected to the roller. The oil seepage hole, and the moving oil seepage hole and the roller cooperate with each other to form a shedding structure, which can prevent the derailment caused by the rotation of the device during use, prevent the roller from loosening, and affect normal use. A central pressure relief slit hole is installed in the middle position, and the central pressure relief slit hole and the rollers cooperate with each other to form a pressure relief structure, which realizes the structure of the device with micro oil leakage, prevents the rigid friction between the rollers inside the device, and increases the capacity of the device. service life, the utility model installs a base matching core inside the shaft seat at the bottom of the hollow core, and the bottom of the base matching core is evenly equipped with an outer sealing ring, so that the device has a sealing structure and the device inside is realized. Sealing rings are installed at the joints of the sealing ring and the external sealing ring, so that the device has a reinforced sealing structure, preventing the powder from entering the inside of the device during the grinding process of the mill, and reducing the burden of bearing rotation.

Description of drawings

Fig. 1 is the top view structural representation of the utility model;

Fig. 2 is a side sectional structure schematic diagram of the utility model;

Fig. 3 is the utility model side view structure diagram;

Fig. 4 is a schematic diagram of the roller connection structure of the utility model;

In the figure: 1. Shaft seat; 2. Fixed ring; 3. Inner sealing ring; 4. Hollow core; 5. Roller; 6. Roller head; 7. Bearing sleeve; 8. Base matching core; 9. Fixed groove ; 10, central pressure relief slit hole; 11, movement oil seepage hole; 12, anti-shedding groove; 13, first dust-proof sealing ring; 14, outer sealing ring;

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-4, an embodiment provided by the utility model: a self-aligning roller bearing for a high-efficiency mill, including a shaft seat 1, a sealing ring 3, a hollow core 4 and a roller head 6, and a shaft seat 1 There is a hollow core 4 in the middle of the interior, and the position where the shaft seat 1 is connected to the roller 5 is provided with a moving oil seepage hole 11 that cooperates with the roller 5, and the moving oil seepage hole 11 cooperates with the roller 5 to form a release. Shedding structure, the bottom end of one side of the hollow core 4 is equipped with a first dust-proof sealing ring 13, and the bottom end of the other side of the hollow core 4 is equipped with a second dust-proof sealing ring 15, and the shaft seat at the bottom of the hollow core 4 1. The base matching core 8 is installed inside, and the bottom of the base matching core 8 is evenly installed with an outer sealing ring 14. Both sides of the hollow core 4 are equipped with bearing sleeves 7, and the outer circle of the hollow core 4 is equipped with Inner sealing ring 3, fixed ring 2 is arranged in the inner middle position of the shaft seat 1 on the outer side of the inner sealing ring 3, and rollers 5 are evenly installed on the fixed ring 2, and the end of the roller 5 away from the shaft seat 1 is installed with The roller head 6, and the roller 5 and the roller head 6 cooperate with each other to form a rolling structure, and the middle position inside the roller 5 is installed with a central pressure relief slit hole 10, and the central pressure relief slit hole 10 cooperates with the roller 5 to form a rolling structure. Pressure relief structure, fixed groove 9 is installed in the middle of the outer circle of the shaft seat 1, the fixed groove 9 cooperates with the shaft seat 1 and other bearings to form a snap-fit structure, and the interior of the shaft seat 1 is uniformly equipped with moving oil seepage hole 11, and the fixed groove 9 and the moving oil seepage hole 11 cooperate with each other to form a uniform oil leakage structure.

Working principle: When in use, firstly, the device is a self-aligning roller bearing, which can adjust the center of gravity during use. When in use, the roller 5 is connected to one side of the fixed ring 2, and the fixed ring 2 fixes the roller 5 and the roller. The subhead 6 rotates above the shaft seat 1 , and the fixing groove 9 at the bottom of the roller 5 can prevent the roller 5 from falling off from above the shaft seat 1 . When rolling away 5 to rotate, the lubricating oil can penetrate through the moving oil seepage hole 11, which can prevent the lubricating oil from coagulating, causing forced wear between the rollers, and increasing the service life.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to be included in the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. Special self-aligning roller bearing of high efficiency milling machine, including axle bed (1), inner seal circle (3), fretwork core (4) and roller head (6), its characterized in that: the bearing comprises a shaft seat (1), and is characterized in that hollow holes (4) are formed in the middle positions of the inner portion of the shaft seat (1), bearing sleeves (7) are mounted on two sides of the outer portion of the hollow holes (4), inner sealing rings (3) are mounted on the outer portion of the hollow holes (4) in a circle, fixing rings (2) are arranged on the middle positions of the outer portion of the inner sealing rings (3) in the inner portion of the shaft seat (1), rollers (5) are uniformly mounted on the fixing rings (2) at equal intervals, fixing grooves (9) are mounted on the middle positions of the outer circle of the shaft seat (1), the fixing grooves (9) are matched with the shaft seat (1) to form a clamping structure with other bearings in a mutual matching mode, movement oil leakage holes (11) are uniformly formed in the shaft seat (1), and the fixing grooves (9) are.

2. The special self-aligning roller bearing for high-efficiency pulverizer of claim 1, wherein: the connection positions of the shaft seat (1) and the roller (5) are provided with a movement oil seepage hole (11) which is matched with the roller (5), and the movement oil seepage hole (11) and the roller (5) are matched with each other to form a releasing structure.

3. The special self-aligning roller bearing for high-efficiency pulverizer of claim 1, wherein: a first dustproof sealing ring (13) is installed at the bottom end of one side of the outside of the hollow core (4), and a second dustproof sealing ring (15) is installed at the bottom end of the other side of the outside of the hollow core (4).

4. The special self-aligning roller bearing for high-efficiency pulverizer of claim 1, wherein: a base matching core (8) is arranged inside the shaft seat (1) at the bottom of the hollow-out core (4), and an outer sealing ring (14) is uniformly arranged at the bottom of the base matching core (8).

5. The special self-aligning roller bearing for high-efficiency pulverizer of claim 1, wherein: and a roller head (6) is arranged at one end of the roller (5) far away from the shaft seat (1), and the roller (5) and the roller head (6) are mutually matched to form a rolling structure.

6. The special self-aligning roller bearing for high-efficiency pulverizer of claim 1, wherein: a central pressure relief gap hole (10) is arranged in the middle of the interior of the roller (5), and the central pressure relief gap hole (10) and the roller (5) are matched with each other to form a pressure relief structure.