CN210531411U

CN210531411U - Novel combined bearing structure

Info

Publication number: CN210531411U
Application number: CN201921362889.2U
Authority: CN
Inventors: 王文才
Original assignee: Naberg Bearing Wuxi Co Ltd
Current assignee: Naberg Bearing Wuxi Co Ltd
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-05-15
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a novel combination bearing structure relates to combination bearing technical field, and for the bearing combination of bearing and two-way thrust cylindrical roller among the solution prior art comparatively troublesome when adding lubricating oil because of the structure reason, need multiple operation, fluid loss very fast problem moreover. One side of the first thrust shaft seat is provided with a first roller retainer, the other side of the first roller retainer is provided with a needle roller outer ring, the other side of the needle roller outer ring is provided with a second roller retainer, the other side of the second roller retainer is provided with a second thrust shaft seat, cylindrical rollers are arranged in the first roller retainer and the second roller retainer, the number of the cylindrical rollers is multiple, a trapezoidal oil groove is formed in the outer surface of the needle roller outer ring, a sealing rubber ring is arranged on the outer side of the trapezoidal oil groove, a main vertical oil duct is arranged in the needle roller outer ring, the number of the main vertical oil ducts is two, and an auxiliary vertical oil duct is arranged on one side of the main vertical oil duct.

Description

Novel combined bearing structure

Technical Field

The utility model relates to a combination bearing technical field specifically is a novel combination bearing structure.

Background

The combined needle bearing is a bearing unit combined by an annular needle bearing and a thrust bearing or an angular contact ball bearing, has compact structure, small volume and high rotation precision, is combined into a whole by a directional needle roller and a thrust full-loading ball, or a thrust cylindrical roller, or an angular contact ball, can bear unidirectional or bidirectional axial load, can be designed according to the special structural requirements of users, has various structural forms, wide adaptability and easy installation, is used at a position where a matching shaft is designed into a bearing raceway, and has certain requirements on the hardness of the bearing; or the IR standard inner ring is matched for bushing treatment, the shaft hardness is not required, the structure is more compact, the bearing is widely applied to various mechanical equipment such as machine tools, metallurgical machinery, textile machinery, printing machinery and the like, and the design of a mechanical system is more compact and smart.

However, the existing needle roller and bidirectional thrust cylindrical roller combined bearing is troublesome in adding lubricating oil due to structural reasons, needs to be operated for many times, and is quick in oil loss; therefore, the existing requirements are not met, and a novel combined bearing structure is provided for the requirements.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel combination bearing structure to the bearing is comparatively troublesome when adding lubricating oil because of the structure reason to the bearing is combined to bearing and two-way thrust cylindrical roller that proposes in solving above-mentioned background art, needs multiple operation, and fluid runs off very fast problem moreover.

In order to achieve the above object, the utility model provides a following technical scheme: a novel combined bearing structure comprises a first thrust shaft seat, wherein a first roller retainer is arranged on one side of the first thrust shaft seat, a needle roller outer ring is arranged on the other side of the first roller retainer, a second roller retainer is arranged on the other side of the needle roller outer ring, a second thrust shaft seat is arranged on the other side of the second roller retainer, a plurality of cylindrical rollers are arranged in the first roller retainer and the second roller retainer, a trapezoidal oil groove is formed in the outer surface of the needle roller outer ring, a sealing rubber ring is arranged on the outer side of the trapezoidal oil groove, a main vertical oil passage is arranged in the needle roller outer ring, two main vertical oil passages are arranged in each main vertical oil passage, an auxiliary vertical oil passage is arranged on one side of each main vertical oil passage, an oil sealing steel ball is arranged in each main vertical oil passage, and a central needle roller is arranged at the other end of each main vertical, and a combined shaft ring is arranged on the other side of the central needle roller, and assembling ports are arranged at two ends of the combined shaft ring.

Preferably, the first thrust shaft seat and the second thrust shaft seat are connected with the combined shaft ring through assembling ports, and the first roller retainer and the second roller retainer are connected with the cylindrical rollers through sliding grooves.

Preferably, the second roller retainer is rotatably connected with the second thrust shaft seat and the needle roller outer ring through cylindrical rollers, and the first roller retainer is rotatably connected with the first thrust shaft seat and the needle roller outer ring through cylindrical rollers.

Preferably, the first roller retainer and the second roller retainer are connected with the combined shaft ring in a combined manner, and the needle roller outer ring is connected with the combined shaft ring in a rotating manner through a central needle roller.

Preferably, the main vertical oil passage is vertically intersected with the auxiliary vertical oil passage, and the main vertical oil passage and the auxiliary vertical oil passage are connected with the oil sealing steel balls through arc grooves.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model is provided with two openings of the main vertical oil duct inside the trapezoidal oil groove on the outer surface of the needle roller outer ring, after the assembly is completed, lubricating oil is dropped into the main vertical oil duct through the openings, the oil liquid flows inwards along the oil passage, and an oil sealing steel ball is arranged at one end inside the main vertical oil passage, the position of the oil sealing steel ball is the intersection of the main vertical oil passage and the auxiliary vertical oil passage, the main vertical oil passage is communicated with the outside and the needle roller, the auxiliary vertical oil passage is communicated with the rollers at two sides, when the oil flows to the intersection, the oil can be shunted through the steel balls and respectively flows to the cylindrical rollers at the two sides and the central needle roller inside, meanwhile, the steel balls can also prevent the lubricating oil entering the interior from flowing backwards, and finally the sealing rubber ring is arranged in the trapezoidal oil groove, prevent that the air from causing fluid to air-dry in entering into the oil duct, also avoid inside lubricating oil to flow out simultaneously.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the overall internal structure of the present invention;

fig. 3 is an enlarged structural diagram a of the present invention.

In the figure: 1. a first thrust shaft seat; 2. a first roller cage; 3. a needle roller outer ring; 4. sealing the rubber ring; 5. a second roller cage; 6. a second thrust shaft seat; 7. a cylindrical roller; 8. assembling the ports; 9. combining the shaft rings; 10. a trapezoidal oil groove; 11. a central needle roller; 12. a main vertical oil passage; 13. oil sealing steel balls; 14. and an auxiliary vertical oil passage.

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.

Referring to fig. 1-3, the present invention provides an embodiment: a novel combined bearing structure comprises a first thrust shaft seat 1, a first roller retainer 2 is arranged on one side of the first thrust shaft seat 1, a needle roller outer ring 3 is arranged on the other side of the first roller retainer 2, a second roller retainer 5 is arranged on the other side of the needle roller outer ring 3, a second thrust shaft seat 6 is arranged on the other side of the second roller retainer 5, cylindrical rollers 7 are arranged inside the first roller retainer 2 and the second roller retainer 5 respectively, a plurality of cylindrical rollers 7 are arranged, a trapezoidal oil groove 10 is arranged on the outer surface of the needle roller outer ring 3, a sealing rubber ring 4 is arranged on the outer side of the trapezoidal oil groove 10 to prevent air from entering an oil duct and prevent lubricating oil inside from flowing out, a main vertical oil duct 12 is arranged inside the needle roller outer ring 3, two main vertical oil ducts 12 are arranged to convey the lubricating oil to the inner rollers and the needle roller surfaces, an auxiliary vertical oil duct 14 is arranged on one side of the main, an oil sealing steel ball 13 is arranged inside the main vertical oil duct 12 and mainly used for changing the flow direction of oil and sealing the oil, a central needle roller 11 is arranged at the other end of the main vertical oil duct 12, a combined shaft ring 9 is arranged on the other side of the central needle roller 11, and assembling ports 8 are arranged at two ends of the combined shaft ring 9, so that the installation and the fixation are facilitated.

Further, the first thrust shaft seat 1 and the second thrust shaft seat 6 are connected with the combined shaft ring 9 through an assembling port 8, and the first roller retainer 2 and the second roller retainer 5 are connected with the cylindrical rollers 7 through sliding grooves.

Further, the second roller retainer 5 is rotatably connected with the second thrust shaft seat 6 and the needle roller outer ring 3 through cylindrical rollers 7, and the first roller retainer 2 is rotatably connected with the first thrust shaft seat 1 and the needle roller outer ring 3 through cylindrical rollers 7, so that bidirectional rotation at two ends of the bearing is realized.

Further, the first roller retainer 2 and the second roller retainer 5 are connected with the combined shaft ring 9 in a combined mode, and the needle roller outer ring 3 is connected with the combined shaft ring 9 in a rotating mode through the central needle roller 11, so that the rotating efficiency of the bearing is improved.

Further, the needle roller outer ring 3 is connected with the sealing rubber ring 4 through the trapezoidal oil groove 10, the main vertical oil passage 12 is fixedly connected with the trapezoidal oil groove 10, and the groove is formed in the inner side of the needle roller outer ring 3, so that the needle roller and the needle roller can be conveniently assembled and mounted.

Further, the main vertical oil duct 12 is vertically intersected with the auxiliary vertical oil duct 14 to control the oil to be divided, and the main vertical oil duct 12, the auxiliary vertical oil duct 14 and the oil sealing steel ball 13 are connected through an arc groove, so that the rotation of the steel ball is convenient to realize.

The working principle is as follows: when the oil-saving device is used, a thrust shaft seat is connected with an assembling port 8 at one end of a combined shaft ring 9, a roller retainer is placed on one side of the installed thrust shaft seat, cylindrical rollers 7 are sequentially installed in grooves in the outer surface of the retainer, a roller pin outer ring 3 and a central roller pin 11 are installed in the middle section of the combined shaft ring 9, then the roller pin outer ring and the roller retainer are installed at the other end of the combined shaft ring 9 according to the previous installation method of the thrust shaft seat and the roller retainer, finally, an opening of a main vertical oil channel 12 in a trapezoid oil channel 10 in the outer surface of the roller pin outer ring 3 is found, lubricating oil is poured into the main vertical oil channel 12 from the opening, the oil flows inwards along the oil channel, an oil sealing steel ball 13 is arranged inside the main vertical oil channel 12, the position of the oil sealing steel ball 13 is the position where the main vertical oil channel 12 and an auxiliary vertical oil channel, flow to the cylindrical roller 7 and the inside central kingpin 11 of both sides respectively, pour into the back at lubricating oil, install sealing rubber ring 4 in trapezoidal oil groove 10, prevent that the air from entering into the oil duct, also avoid inside lubricating oil to flow out simultaneously, just accomplish the installation of whole kingpin and two-way thrust cylindrical roller combination bearing after the installation, the thrust axle bed at both ends can rotate along the cylindrical roller 7 on the inboard roller holder during operation, the kingpin outer lane 3 in the outside also can carry out solitary rotation through the roller of both sides and inboard kingpin simultaneously, realize multidirectional motion mode.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a novel combination bearing structure, includes first thrust axle bed (1), its characterized in that: a first roller retainer (2) is arranged on one side of the first thrust shaft seat (1), a needle roller outer ring (3) is arranged on the other side of the first roller retainer (2), a second roller retainer (5) is arranged on the other side of the needle roller outer ring (3), a second thrust shaft seat (6) is arranged on the other side of the second roller retainer (5), cylindrical rollers (7) are arranged inside the first roller retainer (2) and the second roller retainer (5), a plurality of cylindrical rollers (7) are arranged, a trapezoidal oil groove (10) is arranged on the outer surface of the needle roller outer ring (3), a sealing rubber ring (4) is arranged on the outer side of the trapezoidal oil groove (10), a main vertical oil duct (12) is arranged inside the needle roller outer ring (3), two main vertical oil ducts (12) are arranged, and an auxiliary vertical oil duct (14) is arranged on one side of the main vertical oil duct (12), an oil sealing steel ball (13) is arranged inside the main vertical oil duct (12), a central roller pin (11) is arranged at the other end of the main vertical oil duct (12), a combined shaft ring (9) is arranged on the other side of the central roller pin (11), and assembling ports (8) are arranged at two ends of the combined shaft ring (9).

2. The novel composite bearing structure of claim 1, wherein: the first thrust shaft seat (1) and the second thrust shaft seat (6) are connected with the combined shaft ring (9) through an assembling port (8), and the first roller retainer (2) and the second roller retainer (5) are connected with the cylindrical rollers (7) through sliding grooves.

3. The novel composite bearing structure of claim 1, wherein: the second roller retainer (5) is rotatably connected with the second thrust shaft seat (6) and the needle roller outer ring (3) through cylindrical rollers (7), and the first roller retainer (2) is rotatably connected with the first thrust shaft seat (1) and the needle roller outer ring (3) through the cylindrical rollers (7).

4. The novel composite bearing structure of claim 1, wherein: the first roller retainer (2) and the second roller retainer (5) are connected with the combined shaft ring (9) in a combined mode, and the needle roller outer ring (3) is connected with the combined shaft ring (9) in a rotating mode through a central needle roller (11).

5. The novel composite bearing structure of claim 1, wherein: the needle roller outer ring (3) is connected with the sealing rubber ring (4) through a trapezoidal oil groove (10), the main vertical oil duct (12) is fixedly connected with the trapezoidal oil groove (10), and a groove is formed in the inner side of the needle roller outer ring (3).

6. The novel composite bearing structure of claim 1, wherein: the main vertical oil duct (12) is vertically intersected with the auxiliary vertical oil duct (14), and the main vertical oil duct (12) and the auxiliary vertical oil duct (14) are connected with the oil sealing steel balls (13) through arc grooves.