CN120906908A

CN120906908A - High-strength bearing seat

Info

Publication number: CN120906908A
Application number: CN202511446494.0A
Authority: CN
Inventors: 唐雄章; 张鹏
Original assignee: Aiante Changzhou Precision Machinery Co ltd
Current assignee: Aiante Changzhou Precision Machinery Co ltd
Priority date: 2025-10-11
Filing date: 2025-10-11
Publication date: 2025-11-07
Anticipated expiration: 2045-10-11
Also published as: CN120906908B

Abstract

This invention discloses a high-strength bearing housing, belonging to the field of bearing housings. A high-strength bearing housing includes: two support portions on which sealed bearings are mounted, and a connecting portion for buffering vibration of the support portions, disposed between the two support portions. This invention, by providing the connecting portion, can buffer the vibration of one of the bearing housings. On the one hand, it can prevent the entire bearing housing from vibrating excessively; on the other hand, it can buffer the excessively vibrating bearing housing, preventing excessive amplitude from affecting the other sealed bearing and the other bearing housing. Simultaneously, it has good heat dissipation and lubrication effects.

Description

High-strength bearing seat

Technical Field

The invention relates to the technical field of bearing seats, in particular to a high-strength bearing seat.

Background

In the operation process of industrial equipment, the bearing pedestal is used as a core component for supporting the rotation shaft to operate, the performance of the bearing pedestal directly influences the stability, the safety and the service life of the equipment, especially under high-load working conditions such as a heavy crane, the requirements on the strength, vibration control, lubrication, heat dissipation and the like of the bearing pedestal are strict, and under the high-load working conditions, the replacement of the bearing in the bearing pedestal is also frequent.

In order to cope with the working condition of high load, generally two bearing seats or a large bearing seat with two bearings are adopted for supporting, when equipment is in operation, the rotating shaft is easy to vibrate due to the factors of large load of a driving end, abrasion of the bearings, difficulty in concentricity control and the like, the two bearing seats are integrally and rigidly designed with a connecting structure, vibration can be directly transmitted to the whole bearing seat, on one hand, slight vibration of a single bearing can be transmitted to the other bearing through rigid connection to aggravate the damage of the other bearing, so that a vibration chain reaction is formed, on the other hand, long-term vibration can lead the middle part of the bearing seat to be stressed intensively, structural damage such as deformation, cracks and the like is easy to occur, and if a split bearing seat is adopted, when the bearing in one bearing seat is abraded or the concentricity is inconsistent, the damage of the other bearing can be aggravated.

Disclosure of Invention

The technical problem underlying the present invention is to overcome the disadvantages of the prior art by providing a high strength bearing housing which overcomes or at least partially solves the above mentioned problems.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

a high-strength bearing seat comprises two supporting parts provided with sealing bearings, and further comprises a connecting part for buffering vibration of the supporting parts, wherein the connecting part is arranged between the two supporting parts.

In a preferred embodiment of the present invention, the supporting portion includes a base and an upper seat that are detachably connected, the base and the upper seat are connected through a plurality of bolts, bearing grooves for installing sealing bearings are provided in the base and the upper seat, positioning protrusions are provided in the bearing grooves, positioning rings matched with the positioning protrusions are provided on the sealing bearings, and end portions of the base and the upper seat are provided with a blocking cover for sealing and dust prevention.

In a preferred embodiment of the present invention, the lower end of the inner wall of the connecting portion is provided with a collecting tank, the inside of the connecting portion is symmetrically provided with an arc tube, a first injection tank and a second injection tank facing the sealing bearing are arranged on the arc tube, a liquid supply tube is arranged between the two arc tubes, a branch tube is arranged on the liquid supply tube, one end of the branch tube extends to the outer side of the connecting portion, the lower end of the connecting portion is provided with a liquid suction tube communicated with the collecting tank, the outer wall of the bottom of the connecting portion is fixedly connected with a micro circulating pump, the input end of the micro circulating pump is connected with the liquid suction tube, the output end of the micro circulating pump is connected with the liquid supply tube, one side of the sealing bearing, which is far away from the arc tube, is provided with a sealing cover, and the other end of the sealing bearing is in a bare state.

In a preferred embodiment of the present invention, a plurality of groups of inner honeycomb grooves are arranged on the inner wall of the connecting portion at equal intervals, a diversion opening is arranged between the plurality of inner honeycomb grooves distributed in a ring shape, and the diversion opening at the lower end penetrates to the collecting groove.

In a preferred embodiment of the present invention, an outer honeycomb groove is provided on the outer side of the connection portion.

In a preferred embodiment of the present invention, a vibration sensor is mounted at an upper portion of the connection portion.

In a preferred embodiment of the present invention, an electric telescopic rod is detachably connected to the upper portion of the connecting portion, a detecting rod is slidably connected to the telescopic end of the electric telescopic rod in a sealing manner, a spring is fixedly connected between one end of the detecting rod and the telescopic end of the electric telescopic rod, the vibration sensor is disposed in the detecting rod, and a rolling ball is rotatably disposed at the lower end of the detecting rod.

In a preferred embodiment of the invention, the bearing further comprises an outer sheath which is in interference fit with the rotating shaft, wherein the outer sheath is in interference fit with the inner rings of the two sealing bearings.

In a preferred embodiment of the present invention, the outer sheath is provided with a plurality of annular grooves, wherein one annular groove corresponds to the rolling ball.

In a preferred embodiment of the present invention, both ends of the outer sheath are fixedly connected with guide rings, one side of the guide rings is arranged in an inner arc shape, and one side with the inner arc shape is arranged at one side far away from the sealing bearing.

Compared with the prior art, the invention provides the high-strength bearing seat, which has the following beneficial effects:

1. this high strength bearing frame can cushion the vibration of one of them bearing frame through setting up connecting portion, on the one hand can avoid whole bearing frame to follow the condition that vibrates and appear excessive vibration, on the other hand can cushion the bearing frame of excessive vibration, avoids the too big influence another sealed bearing of amplitude and another bearing frame, and connecting portion can adopt the material that has certain buffer capacity to make, and its hardness is less than the hardness of two supporting parts.

2. This high strength bearing frame is through storing partial lubricating oil in the collecting vat department of connecting portion to at pivot pivoted in-process, circulate lubricating oil through miniature circulating pump, with the help of the extraction of liquid suction pipe cooling liquid, then discharge through the feed pipe, partial lubricating oil sprays in the sealed bearing, lubricate the roller in the sealed bearing, lubricating oil also has certain heat absorption function simultaneously, absorb heat lubricating oil gradually more the back flow to the collecting vat and circulate, lubricate through the mode of real-time oil supply this moment, can prevent effectively that the sealed bearing temperature from influencing its intensity and influencing its normal work under the high load condition.

3. This high strength bearing frame, part enters into interior honeycomb inslot through injection groove one spun lubricating oil, and the heat that enters into interior honeycomb inslot lubricating oil fully is absorbed by interior honeycomb's inner wall, finally carries out conduction heat dissipation to the outer wall of connecting portion, and then has improved the radiating effect to lubricating oil effectively, prevents that lubricating oil from high temperature from influencing its lubricating effect, through lubricating oil as the medium simultaneously, can improve the radiating effect to sealed bearing and supporting part.

The device has the advantages that the vibration of one bearing seat can be buffered by arranging the connecting part, so that the situation of excessive vibration caused by the following vibration of the whole bearing seat can be avoided, the bearing seat which excessively vibrates can be buffered, the influence of excessive amplitude on the other sealing bearing and the other bearing seat can be avoided, and meanwhile, the device has good heat dissipation effect and lubricating effect.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a second embodiment of the present invention;

FIG. 3 is a front view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a bottom view of the present invention;

FIG. 6 is a schematic view of an expanded configuration of the present invention;

FIG. 7 is a schematic cross-sectional view of the present invention;

FIG. 8 is a second schematic cross-sectional view of the present invention;

FIG. 9 is an enlarged schematic view of the invention at A in FIG. 8;

FIG. 10 is an enlarged schematic view of the present invention at B in FIG. 8;

FIG. 11 is a schematic view of an arced tube according to the present invention;

Fig. 12 is a schematic cross-sectional view of a connecting portion according to the present invention.

The device comprises a supporting part 1, a base, a bearing groove 103, a positioning protrusion 104, a diversion area, 105, a blocking cover 106, an upper seat 107, a bolt 2, a sealing bearing 201, a sealing cover 202, a positioning ring 3, a connecting part 301, an inner honeycomb groove 302, a diversion port 303, an outer honeycomb groove 304, a pitting surface 305, a collecting groove 4, a micro circulating pump 401, a liquid suction pipe 402, a liquid supply pipe 403, an arc-shaped pipe 404, a jet groove I405, a jet groove II, 5, an electric telescopic rod 501, a detection rod 502, a vibration sensor 503, a rolling ball 504, a spring 6, a rotating shaft 7, an outer sheath 701, an annular groove 702 and a diversion ring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Embodiment referring to fig. 1, a high strength bearing housing includes two support parts 1 to which a sealed bearing 2 is mounted, and further includes:

in a specific embodiment, the supporting part 1 can adopt a single bearing seat, the two bearing seats are welded with the connecting part 3 or connected in a detachable connection mode, and the rotating shaft 6 is arranged in the two bearing seats;

In this embodiment, the supporting portion 1 may further adopt the following embodiment, referring to fig. 2 and 6, the supporting portion 1 includes a base 101 and an upper seat 106 that are detachably connected, the base 101 and the upper seat 106 are connected by a plurality of bolts 107, bearing grooves 102 for installing the sealing bearing 2 are all provided in the base 101 and the upper seat 106, positioning protrusions 103 are provided in the bearing grooves 102, positioning rings 202 matching with the positioning protrusions 103 are provided on the sealing bearing 2, and end portions of the base 101 and the upper seat 106 are all provided with a blocking cover 105 for sealing dust prevention.

In the actual installation process, the sealing bearing 2 can be firstly installed on the rotating shaft 6 at fixed distance, then the sealing bearing 2 is arranged on the base 101, the upper seat 106 is fixed on the base 101 to finish the installation, the mode is more convenient to assemble, under the condition that the rotating shaft 6 is inconvenient to disassemble, the sealing bearing 2 can be firstly installed, then the rotating shaft 6 is inserted into the inner ring of the sealing bearing 2 to finish the installation, and the inner ring of the sealing bearing 2 is in interference fit with the rotating shaft 6.

In the rotating process of the rotating shaft 6, radial and axial forces are borne by the two sealing bearings 2, but in the actual processing and installation and use processes, the situation that on one hand, the axle centers of the two sealing bearings 2 are difficult to ensure to be consistent, certain errors exist, however, under certain errors, one sealing bearing 2 is stressed too much, on the other hand, due to the fact that the distances between the two sealing bearings 2 and a driving point are different, after the sealing bearings 2 close to the driving point are slightly worn, the rotating shaft 6 reasonably slightly jumps or vibrates, at the moment, the sealing bearings 2 far from the driving point are subjected to larger radial force, at the moment, the damage of the sealing bearings 2 is aggravated, the use of the whole equipment is not affected in time due to replacement, and certain potential safety hazards exist;

In actual use, the integrally cast double-bearing seat is likely to cause the vibration of the whole bearing seat, so that on one hand, the damage of the other sealed bearing 2 is aggravated, on the other hand, the middle part of the bearing seat is deformed or cracked, and at the moment, the replacement cost is higher;

and thus is arranged between the two support parts 1 by means of the connection parts 3 for vibration damping of the support parts 1.

The vibration of one bearing seat can be buffered through the connecting part 3, so that the situation that the whole bearing seat vibrates excessively can be avoided, the bearing seat which vibrates excessively can be buffered, the phenomenon that the vibration amplitude affects the other sealing bearing 2 and the other bearing seat excessively is avoided, the connecting part 3 can be made of a material with certain buffering capacity, and the hardness of the connecting part is lower than that of the two supporting parts 1.

In a specific embodiment, referring to fig. 6 and 11, a collecting tank 305 is disposed at the lower end of the inner wall of the connecting portion 3, an arc tube 403 is symmetrically disposed in the connecting portion 3, a first injection tank 404 and a second injection tank 405 facing the sealing bearing 2 are disposed on the arc tube 403, a liquid supply tube 402 is disposed between the two arc tubes 403, a branch tube is disposed on the liquid supply tube 402, one end of the branch tube extends to the outer side of the connecting portion 3, a liquid suction tube 401 communicating with the collecting tank 305 is disposed at the lower end of the connecting portion 3, a micro circulation pump 4 is fixedly connected to the outer wall of the bottom of the connecting portion 3, the input end of the micro circulation pump 4 is connected with the liquid suction tube 401, the output end of the micro circulation pump is connected with the liquid supply tube 402, a sealing cover 201 is disposed on one side of the sealing bearing 2 away from the arc tube 403, and the other end of the sealing bearing 2 is in a bare state.

Part of lubricating oil is stored in the collecting tank 305 of the connecting part 3, and in the rotating process of the rotating shaft 6, the lubricating oil is circulated through the micro circulating pump 4, cooling liquid is extracted by means of the liquid extracting pipe 401 and then is discharged through the liquid supplying pipe 402, part of lubricating oil is sprayed into the sealed bearing 2 to lubricate rollers in the sealed bearing 2, meanwhile, the lubricating oil also has a certain heat absorbing function, heat is absorbed, the lubricating oil absorbing the heat gradually flows into the collecting tank 305 to circulate, and at the moment, the lubricating is performed in a real-time oil supplying mode, so that the influence on the strength and the normal operation of the sealed bearing 2 caused by the overhigh temperature of the sealed bearing 2 under the condition of high load can be effectively prevented.

In another embodiment, referring to fig. 7 and 8, the inner wall of the connecting portion 3 is provided with a plurality of groups of inner honeycomb grooves 301 arranged at equal intervals, a diversion port 302 is provided between the plurality of inner honeycomb grooves 301 distributed in a ring shape, and the diversion port 302 at the lower end penetrates to the collection groove 305.

Part enters into interior honeycomb 301 through injection groove one 404 spun lubricating oil, enters into interior honeycomb 301 lubricating oil's heat fully by interior honeycomb 301's inner wall absorption, finally carries out conduction heat dissipation to connecting portion 3's outer wall, and then has improved the radiating effect to lubricating oil effectively, prevents that lubricating oil from high temperature from influencing its lubricating effect, through lubricating oil as the medium simultaneously, can improve the radiating effect to sealed bearing 2 and supporting part 1.

In addition, in the specific embodiment, referring to fig. 11, the diameter of the first spraying groove 404 is larger than that of the second spraying groove 405, so that most of the lubricating oil can be used for conducting heat and dissipating heat, and the heat dissipation effect is improved, and the connecting portion 3 in vibration facilitates the lubricating oil to flow in the inner honeycomb groove 301, so that the heat conduction effect and the heat dissipation effect are improved.

Referring to fig. 5 and 12, an outer honeycomb groove 303 is provided on the outer side of the connection part 3.

The outer honeycomb groove 303 corresponds to the inner honeycomb groove 301, so that heat can be conducted, the heat dissipation area of the inner honeycomb groove can be further increased in a limited space, and the heat exchange between the outer honeycomb groove 303 and the outside air can be further improved due to the integral vibration of the connecting part 3, so that the heat dissipation effect of the inner honeycomb groove is further effectively improved;

Through the arrangement of the inner honeycomb 301 and the outer honeycomb 303, the vibration buffering effect on the two end supporting parts 1 can be further improved, the external load can be uniformly distributed on each honeycomb unit, and meanwhile, the inner honeycomb 301 and the outer honeycomb 303 have certain noise reduction effect, so that the excessive vibration noise is avoided.

In a preferred embodiment, referring to fig. 8 and 9, a vibration sensor 502 is installed at an upper portion of the connection part 3.

The vibration sensor 502 is arranged at the connecting part 3, so that the vibration condition of the connecting part 3 can be detected in real time, the vibration condition of the rotating shaft 6 can be further fed back, and when the vibration range reaches a preset value, a worker can overhaul and replace the rotating shaft according to a signal received by an external control end, so that certain potential safety hazards caused by excessive vibration are avoided.

Referring to fig. 3 and 4, an electric telescopic rod 5 is detachably connected to the upper portion of the connection portion 3, a detection rod 501 is connected to the telescopic end of the electric telescopic rod 5 in a sealing and sliding manner, a spring 504 is fixedly connected between one end of the detection rod 501 and the telescopic end of the electric telescopic rod 5, the spring 504 inside can resist vibration of the connection portion 3, a vibration sensor 502 is arranged in the detection rod 501, and a rolling ball 503 is rotatably arranged at the lower end of the detection rod 501.

In the actual detection process, the vibration sensor 502 detects the vibration condition of the connecting part 3 first, when the vibration data of the vibration sensor reaches a second set value, the external control end controls the electric telescopic rod 5 to extend out for a specified distance, so that the rolling ball 503 is in contact with the outer wall of the rotating shaft 6, at the moment, the detection rod 501 can be driven to vibrate along with the vibration of the rotating shaft 6, the vibration condition of the rotating shaft 6 can be accurately detected, and the phenomenon that the sensor is directly installed on the rotating shaft 6 to influence the rotating stability of the sensor is avoided.

In a specific embodiment, the bearing further comprises an outer sheath 7 which is in interference fit with the rotating shaft 6, and the outer sheath 7 is in interference fit with the inner rings of the two sealed bearings 2.

The outer sheath 7 can be installed in a matched mode by firstly installing the sealed bearing 2, on one hand, the outer sheath 7 can distance the sealed bearing 2, on the other hand, the outer sheath 7 can prevent lubricating oil from entering the joint of the rotating shaft 6 and the inner ring of the sealed bearing 2, and further, the slipping phenomenon is prevented.

Referring to fig. 10, the outer sheath 7 is provided with a plurality of annular grooves 701, one of the annular grooves 701 corresponding to the rolling balls 503.

The plurality of annular grooves 701 are arranged to gather the lubricating oil flowing on the outer sheath 7, and then the lubricating oil is thrown out under the action of centrifugal force, so that the lubricating oil enters the inner honeycomb groove 301, the lubricating oil is prevented from flowing to the sealing bearing 2 on the outer sheath 7, and further the lubricating oil is effectively prevented from entering a position between the rotating shaft 6 and the sealing bearing 2, and particularly, under the condition that the rotating shaft 6 vibrates up and down, gaps possibly occur between the outer edge of the outer sheath 7 and the sealing bearing 2;

by the contact of the rolling ball 503 with the annular groove 701 in the middle, it is possible to avoid the influence of the chips and the like stuck on the outer sheath 7 on the detection accuracy thereof.

In a preferred embodiment, referring to fig. 10, two ends of the outer sheath 7 are fixedly connected with the guide ring 702, and one side of the guide ring 702 is disposed in an inner arc shape, and the side with the inner arc shape is disposed at the side far away from the sealed bearing 2.

The base 101 and the upper base 106 are both provided with a diversion area 104, the diversion area 104 inclines to one side far away from the sealed bearing 2, and the diversion ring 702 and the diversion area 104 are in the same plane.

The guide ring 702 can gather the lubricating liquid flowing to two ends or one end due to vibration and throw the lubricating liquid out to the guide area 104 along the inner arc surface, so as to absorb the heat of the supporting part 1, and further effectively improve the heat dissipation effect of the supporting part, especially in the high-load use environment of the heavy crane.

The inner wall of the inner honeycomb 301 is provided with pitted surface 304, and the pitted surface 304 can be manufactured by adopting a metal powder sintering mode.

The inner wall of the inner honeycomb groove 301 is provided with the pitting surface 304, the pitting surface 304 is uneven, the function of intercepting residues is achieved, tiny debris residues generated when the sealed bearing 2 operates in a high-load environment are avoided, and the service life of the sealed bearing 2 is prolonged.

The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.

Claims

1. A high-strength bearing housing, comprising: two support portions (1) on which sealed bearings (2) are mounted, characterized in that it further comprises:

The connecting part (3) used to buffer the vibration of the support part (1) is set between the two support parts (1).

2. A high-strength bearing housing according to claim 1, characterized in that the support part (1) includes a detachably connected base (101) and an upper seat (106), the base (101) and the upper seat (106) are connected by a plurality of bolts (107), the base (101) and the upper seat (106) are provided with bearing grooves (102) for installing sealed bearings (2), the bearing grooves (102) are provided with positioning protrusions (103), the sealed bearings (2) are provided with positioning rings (202) that cooperate with the positioning protrusions (103), and the ends of the base (101) and the upper seat (106) are provided with covers (105) for sealing and dust prevention.

3. A high-strength bearing housing according to claim 1, characterized in that a collection groove (305) is provided at the lower end of the inner wall of the connecting part (3), and arc-shaped tubes (403) are symmetrically arranged inside the connecting part (3), with a first spray groove (404) and a second spray groove (405) facing the sealed bearing (2) on the arc-shaped tubes (403), and a liquid supply pipe (402) is provided between the two arc-shaped tubes (403), and the liquid supply pipe (402) has a branch pipe, the branch pipe of One end extends to the outside of the connecting part (3), and the lower end of the connecting part (3) is provided with a liquid extraction pipe (401) communicating with the collection tank (305). A micro circulation pump (4) is fixedly connected to the bottom outer wall of the connecting part (3). The input end of the micro circulation pump (4) is connected to the liquid extraction pipe (401), and its output end is connected to the liquid supply pipe (402). The sealing bearing (2) is provided with a sealing cap (201) on the side away from the arc tube (403), and its other end is exposed.

4. A high-strength bearing housing according to claim 3, characterized in that the inner wall of the connecting part (3) is provided with multiple sets of equidistant inner honeycomb grooves (301), and a guide port (302) is provided between the multiple inner honeycomb grooves (301) distributed in a ring, and the guide port (302) at the lower end extends through to the collection groove (305).

5. A high-strength bearing housing according to claim 3, characterized in that an outer honeycomb groove (303) is provided on the outer side of the connecting part (3).

6. A high-strength bearing housing according to claim 1, characterized in that a vibration sensor (502) is installed on the upper part of the connecting part (3).

7. A high-strength bearing seat according to claim 6, characterized in that an electric telescopic rod (5) is detachably connected to the upper part of the connecting part (3), a detection rod (501) is slidably connected to the telescopic end of the electric telescopic rod (5), a spring (504) is fixedly connected between one end of the detection rod (501) and the telescopic end of the electric telescopic rod (5), a vibration sensor (502) is disposed inside the detection rod (501), and a rolling ball (503) is rotatably disposed at the lower end of the detection rod (501).

8. A high-strength bearing housing according to claim 7, characterized in that it further includes an outer sheath (7) that is interference-fitted on the rotating shaft (6), wherein the outer sheath (7) is interference-fitted with the inner rings of the two sealed bearings (2).

9. A high-strength bearing housing according to claim 8, characterized in that a plurality of annular grooves (701) are provided on the outer sheath (7), one of which is corresponding to the rolling ball (503).

10. A high-strength bearing housing according to claim 8, characterized in that both ends of the outer sheath (7) are fixedly connected with guide rings (702), and one side of the guide ring (702) is arranged in an inner arc shape, and the side with the inner arc shape is arranged on the side away from the sealed bearing (2).