CN210623397U

CN210623397U - High-lubrication oil-retaining bearing

Info

Publication number: CN210623397U
Application number: CN201921427361.9U
Authority: CN
Inventors: 陈汝坡; 张丽洁
Original assignee: Riqian Tangshan Electric Technology Co ltd
Current assignee: Riqian Tangshan Electric Technology Co ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-26
Anticipated expiration: 2029-08-30

Abstract

The utility model relates to an oiliness bearing technical field especially relates to a high lubricated oiliness bearing. The device has the advantages that the oil-containing bearing replaces a traditional ball bearing, has excellent high-temperature oxidation resistance and low noise performance, enables a motor to run more stably, and is well compatible with metal and most plastic materials; when the main shaft stops rotating, the bearing bush is cooled and retracted, the pores recover to absorb oil, and meanwhile, the asbestos ring expands to absorb oil, so that the asbestos ring has good oil absorption and storage effects.

Description

High-lubrication oil-retaining bearing

Technical Field

The utility model relates to an oiliness bearing technical field especially relates to a high lubricated oiliness bearing.

Background

By utilizing the porous characteristic of the material or the affinity characteristic with lubricating oil, the lubricating oil is soaked in the bearing bush material before the bearing bush is installed and used, and the lubricating oil can not be added or not added for a long time during the working period of the bearing, so that the bearing is called as an oil-retaining bearing; when the oil-retaining bearing is in a non-operation state, the pores are filled with lubricating oil, and when the oil-retaining bearing is in operation, the shaft rotates to generate heat due to friction, and the pores are reduced due to the thermal expansion of the bearing bush, so that the lubricating oil overflows and enters the bearing gaps. After the shaft stops rotating, the bearing bush is cooled, the pore space is recovered, and the lubricating oil is sucked back to the pore space.

Lubricating oil loss can be caused by high-temperature evaporation of lubricating oil and abrasion of a main shaft, the oil storage capacity of the traditional bearing bush is small, and the lubricating effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem, it is not enough to the technique that exists to the aforesaid, a high lubrication oiliness bearing is provided, adopt the design of high lubrication oiliness bearing device, replace traditional ball bearing through the oiliness bearing, oiliness bearing has excellent high temperature oxidation resistance, good low noise performance, make the motor operate more steadily, with metal, the good compatible advantage of most of plastic materials, this device cup joints the seal cover outside the axle bush, and install the oil absorption circle between seal cover and axle bush, when the heat is produced in the friction between main shaft and the axle bush, the axle bush inflation extrudes the lubricating oil at its through-hole position and lubricates it, the axle bush inflation compresses the oil absorption circle simultaneously and extrudes oil, guarantee that there is sufficient lubricating oil to lubricate between main shaft and the axle bush, the lubrication effect of main shaft is good; when the main shaft stops rotating, the bearing bush is cooled and retracted, the pores recover to absorb oil, and meanwhile, the asbestos ring expands to absorb oil, so that the asbestos ring has good oil absorption and storage effects.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: the motor comprises a motor shell, a main shaft, a stator and a high-lubrication oil-containing bearing device; an end cover is fixedly arranged on the left side of the motor shell; a fan is arranged on the right side of the motor shell; the stator is fixedly arranged inside the motor shell; the main shaft penetrates through the middle of the motor shell; the fan key is connected to the right end of the main shaft; a protective cover is fixedly arranged outside the fan at the right end of the motor shell; a rotor is fixedly arranged on the main shaft in the stator; and a bearing seat is arranged in the middle of the right side of the end cover.

Further optimizing the technical scheme, the right side of the bearing seat is provided with an installation groove; the high-lubrication oil-containing bearing device is arranged in the mounting groove; the main shaft is connected with the bearing seat through a high-lubrication oil-containing bearing device; the high-lubrication oil-containing bearing device comprises a bearing bush, an oil absorption ring and a sealing sleeve.

Further optimizing the technical scheme, a plurality of through holes are uniformly formed in the periphery of the bearing bush; and a check ring is arranged on the right side of the bearing bush.

The technical scheme is further optimized, and the sealing sleeve is sleeved outside the bearing bush; the outer diameter of the seal sleeve is equal to that of the retainer ring.

Further optimize this technical scheme, seal cover and retaining ring equal interference fit install inside the mounting groove.

Further optimizing the technical scheme, a groove is formed in the right side inside the sealing sleeve; the oil absorption ring is arranged inside the groove; the oil absorption ring is arranged between the sealing sleeve and the bearing bush; the oil absorption ring is made of oil absorption materials such as asbestos, graphite or felt.

Further optimize this technical scheme, seal cover and axle bush between interference fit installation.

Further optimizing the technical scheme, the length of the oil suction ring is equal to the depth of the groove; the length of the bearing bush is equal to the sum of the lengths of the sealing sleeve and the check ring.

Compared with the prior art, the utility model has the advantages of it is following:

1. excellent high-temperature oxidation resistance, strong anti-coking capability and small evaporation loss.

2. Low friction coefficient, strong abrasion resistance, high viscosity index and small change of viscosity along with temperature.

3. The motor has excellent low-noise performance and small low-temperature torque, and can make the motor run quieter and more stable.

4. Good compatibility with metal, most plastic and rubber sealing materials, and a lifelong lubricating life.

5. The sealing sleeve is sleeved outside the bearing bush, the oil suction ring is arranged between the sealing sleeve and the bearing bush, when heat is generated by friction between the main shaft and the bearing bush, the bearing bush expands to extrude lubricating oil at the through hole of the main shaft to lubricate the main shaft and the bearing bush, and the oil suction ring compresses to extrude the oil when the bearing bush expands, so that sufficient lubricating oil is ensured to be reserved between the main shaft and the bearing bush to lubricate the main shaft, and the lubricating effect of the main shaft is good.

6. When the shaft stops rotating, the bearing bush is cooled and retracted, the pores recover to absorb oil, and meanwhile, the asbestos ring expands to absorb oil, so that the asbestos ring has good oil absorption and storage effects.

Drawings

Fig. 1 is an external view showing a motor mounting state of a high-lubrication oil-retaining bearing.

Fig. 2 is a partial sectional view showing a mounting position structure of a high-lubrication oil-retaining bearing device for a high-lubrication oil-retaining bearing.

Fig. 3 is a partial exploded view of a high-lubrication oil-impregnated bearing device mounting position structure of a high-lubrication oil-impregnated bearing.

Fig. 4 is a partial sectional view of an internal mounting structure of a high-lubrication oil-impregnated bearing device of a high-lubrication oil-impregnated bearing.

Fig. 5 is an exploded view of an internal mounting structure of a high lubrication oil-impregnated bearing device of a high lubrication oil-impregnated bearing.

In the figure: 1. a motor housing; 101. an end cap; 102. a fan; 103. a protective cover; 104. a bearing seat; 105. mounting grooves; 2. a main shaft; 3. a stator; 4. a highly lubricated oil-impregnated bearing device; 401. bearing bushes; 402. an oil suction ring; 403. sealing sleeves; 404. a through hole; 405. a retainer ring; 406. a groove; 5. and a rotor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The first embodiment is as follows: as shown in fig. 1 to 5, the high-lubrication oil-retaining bearing is characterized in that: the motor comprises a motor shell 1, a main shaft 2, a stator 3 and a high-lubrication oil-containing bearing device 4; an end cover 101 is fixedly arranged on the left side of the motor shell 1; a fan 102 is arranged on the right side of the motor shell 1; the stator 3 is fixedly arranged inside the motor shell 1; the main shaft 2 is arranged in the middle of the motor shell 1 in a penetrating manner; the fan 102 is connected to the right end of the main shaft 2 in a key mode; a protective cover 103 is fixedly arranged at the right end of the motor shell 1 outside the fan 102; a rotor 5 is fixedly arranged on the main shaft 2 inside the stator 3; a bearing seat 104 is arranged in the middle of the right side of the end cover 101; the right side of the bearing seat 104 is provided with a mounting groove 105; the high-lubrication oil-containing bearing device 4 is arranged inside the mounting groove 105; the main shaft 2 is connected with the bearing block 104 through a high-lubrication oil-containing bearing device 4; the high-lubrication oil-containing bearing device 4 comprises a bearing bush 401, an oil suction ring 402 and a sealing sleeve 403; a plurality of through holes 404 are uniformly formed in the periphery of the bearing bush 401; a retainer ring 405 is arranged on the right side of the bearing bush 401; the sealing sleeve 403 is sleeved outside the bearing bush 401; the outer diameter of the seal sleeve 403 is equal to that of the retainer ring 405; the sealing sleeve 403 and the check ring 405 are arranged in the mounting groove 105 in an interference fit manner; a groove 406 is formed in the right side inside the sealing sleeve 403; the oil suction ring 402 is arranged inside the groove 406; the oil suction ring 402 is arranged between the sealing sleeve 403 and the bearing bush 401; the oil absorbing ring 402 is made of oil absorbing material such as asbestos, graphite or felt; the sealing sleeve 403 and the bearing bush 401 are arranged in an interference fit manner; the length of the oil suction ring 402 is equal to the depth of the groove 406; the length of the bearing bush 401 is equal to the sum of the lengths of the sealing sleeve 403 and the retaining ring 405.

When the bearing bush is used, in the first step, as shown in fig. 1-5, the motor is started, when the motor works, the main shaft 2 is driven to rotate together through the action of a magnetic field between the stator 3 and the rotor 5, and because the main shaft 2 and the bearing block 104 are connected through the high-lubrication oil-containing bearing device 4, and the main shaft 2 penetrates through the middle part of the bearing bush 401', friction occurs between the main shaft 2 and the bearing bush 401 when the main shaft 2 rotates, so that the temperature of the bearing bush 401 is rapidly increased under the action of the friction, the bearing bush 401 begins to expand under the principle of thermal expansion and cold contraction, and when the bearing bush 401 expands, the pores of the through hole 404 on the surface of the bearing bush 401 begin to become small, and because the bearing bush 401, the oil; therefore, the bearing bush 401 and the sealing sleeve 403 can store a small amount of lubricating oil, and the oil suction ring 402 can store a large amount of lubricating oil, so that when the bearing bush 401 expands to form a small hole, the lubricating oil stored in the bearing bush 401 can be extruded out through the through hole 404.

Because' the right side inside the sealing sleeve 403 is provided with a groove 406; the oil suction ring 402 is arranged inside the groove 406; the oil suction ring 402 is arranged between the sealing sleeve 403 and the bearing bush 401; the oil suction ring 402 is an asbestos ring or a graphite ring', so that when the bearing bush 401 expands, the oil suction ring 402 is pressed to squeeze oil, and the oil squeezed by the oil suction ring 402 flows to the position of the main shaft 2 through the through hole 404 in the same way.

The lubricating oil between the main shaft 2 and the bearing shell 401 can generate a layer of oil film on the surface of the main shaft 2, and the oil film plays a certain role in lubricating the main shaft 2.

Because the oil storage volume is more in the oil absorption circle 402, not only can be for axle bush 401 fuel feeding, can also directly extrude the effect and lubricate on main shaft 2, main shaft 2's lubricated effect is better.

In conclusion, the design of the high-lubrication oil-containing bearing device 4 replaces the traditional ball bearing through the oil-containing bearing, the oil-containing bearing has the advantages of excellent high-temperature oxidation resistance and excellent low-noise performance, the motor can run more stably, and the oil-containing bearing is well compatible with metal and most plastic materials.

Step two, as shown in fig. 1-5, when the main shaft 2 stops operating, the frictional heat is released, the bearing bush 401 starts to cool, when the bearing bush 401 cools, the pores of the through hole 404 increase, so as to absorb the lubricating oil on the main shaft 2, and similarly, the compression state of the oil absorption ring 402 is released, the oil absorption ring 402 expands to absorb the oil, and since the oil absorption ring 402 is made of an oil absorption material such as asbestos, graphite or felt, most of the lubricating oil is absorbed into the oil absorption ring 402, so that the lubricating oil in the oil absorption ring can be prevented from being diffused to the outside to cause pollution; the asbestos ring has better oil absorption and storage effects.

The sealing sleeve 403 and the bearing bush 401 are mounted in an interference fit manner, the sealing sleeve and the bearing bush 401 can be embedded together, the sealing sleeve 403 and the check ring 405 are mounted inside the mounting groove 105 in an interference fit manner, the sealing sleeve 403 and the check ring 405 can be embedded inside the mounting groove 105 of the bearing block 104 together, and the sealing sleeve 403 and the bearing bush 401 are fixed in the friction running process of the main shaft 2.

When the bearing assembly is used for maintenance for a period of time, only the bearing bush 401 is needed as a wear part of the bearing assembly, so that the bearing bush 401 is taken out from the shaft sleeve and replaced by a new bearing bush 401.

The utility model discloses a control mode comes automatic control through the controller, and the control circuit of controller can realize through the simple programming of technical staff in this field, belongs to the common general knowledge in this field, and the utility model discloses mainly be used for protecting mechanical device, so the utility model discloses no longer explain control mode and circuit connection in detail.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A high-lubrication oil-retaining bearing is characterized in that: comprises a motor shell (1), a main shaft (2), a stator (3) and a high-lubrication oil-containing bearing device (4); an end cover (101) is fixedly arranged on the left side of the motor shell (1); a fan (102) is arranged on the right side of the motor shell (1); the stator (3) is fixedly arranged inside the motor shell (1); the main shaft (2) penetrates through the middle of the motor shell (1); the fan (102) is connected to the right end of the main shaft (2) in a key mode; a protective cover (103) is fixedly arranged at the right end of the motor shell (1) outside the fan (102); a rotor (5) is fixedly arranged on the main shaft (2) in the stator (3); and a bearing seat (104) is arranged in the middle of the right side of the end cover (101).

2. The high-lubrication oil-impregnated bearing according to claim 1, wherein: the right side of the bearing seat (104) is provided with a mounting groove (105); the high-lubrication oil-containing bearing device (4) is arranged in the mounting groove (105); the main shaft (2) is connected with the bearing seat (104) through a high-lubrication oil-containing bearing device (4); the high-lubrication oil-containing bearing device (4) comprises a bearing bush (401), an oil absorption ring (402) and a sealing sleeve (403); the main shaft (2) penetrates through the middle of the bearing bush (401).

3. The high-lubrication oil-impregnated bearing according to claim 2, wherein: a plurality of through holes (404) are uniformly formed in the periphery of the bearing bush (401); and a retainer ring (405) is arranged on the right side of the bearing bush (401).

4. A highly lubricated oil-impregnated bearing according to claim 3, wherein: the sealing sleeve (403) is sleeved outside the bearing bush (401); the outer diameter of the sealing sleeve (403) is equal to that of the retainer ring (405).

5. A highly lubricated oil-impregnated bearing according to claim 3, wherein: and the sealing sleeve (403) and the check ring (405) are arranged in the mounting groove (105) in an interference fit manner.

6. The high-lubrication oil-impregnated bearing according to claim 2, wherein: a groove (406) is formed in the right side inside the sealing sleeve (403); the oil suction ring (402) is arranged inside the groove (406); the oil absorption ring (402) is arranged between the sealing sleeve (403) and the bearing bush (401); the oil absorption ring (402) is made of oil absorption materials such as asbestos, graphite or felt.

7. The high-lubrication oil-impregnated bearing according to claim 2, wherein: and the sealing sleeve (403) and the bearing bush (401) are arranged in an interference fit manner.

8. The highly-lubricated oil-impregnated bearing according to claim 3 or 6, wherein: the length of the oil suction ring (402) is equal to the depth of the groove (406); the length of the bearing bush (401) is equal to the sum of the lengths of the sealing sleeve (403) and the retaining ring (405).