CN211145122U

CN211145122U - High-strength needle roller bearing

Info

Publication number: CN211145122U
Application number: CN201922194393.5U
Authority: CN
Inventors: 刘业志
Original assignee: Hubei Chuangrui Precision Bearing Co ltd
Current assignee: Hubei Chuangrui Precision Bearing Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-31
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a needle bearing of high strength relates to needle bearing technical field, and when the in-process that uses for the needle bearing among the solution prior art received the striking of external force, probably lead to inside kingpin to take place to warp, and the kingpin will influence the problem of the normal operating of bearing after warping. The needle bearing main body comprises a needle fixing ring, an outer ring metal collar is arranged on the outer side of the needle fixing ring and is in combined connection with the outer ring metal collar, an inner ring metal collar is arranged on the inner side of the needle fixing ring and is in combined connection with the needle fixing ring, needle clamping grooves are formed in the outer surface of the needle fixing ring and are multiple, special metal needles are arranged inside the needle clamping grooves and are in rotary connection with the needle clamping grooves, and lubricating oil holes are formed in the outer surface of the outer ring metal collar and are two.

Description

High-strength needle roller bearing

Technical Field

The utility model relates to a bearing technical field specifically is a bearing of high strength.

Background

Needle bearings are roller bearings with cylindrical rollers, which are both thin and long relative to their diameter. Such rollers are called needles. Although the bearing has a smaller section, the bearing still has higher load bearing capacity, the needle bearing is provided with a thin and long roller, so the radial structure is compact, the inner diameter size and the load bearing capacity of the needle bearing are the same as those of other types of bearings, the outer diameter is the minimum, the needle bearing is particularly suitable for a bearing structure with limited radial installation size, according to different use occasions, the bearing without an inner ring or a needle roller and retainer assembly can be selected, the surface of a shaft neck and the surface of a shell hole which are matched with the bearing are directly used as the inner rolling surface and the outer rolling surface of the bearing, in order to ensure the load bearing capacity and the running performance to be the same as those of a bearing with a ferrule, the hardness, the processing precision and the surface quality of the raceway surface of the shaft or the shell hole are similar to those of a raceway of a bearing ferrule, the needle bearing is provided with the thin and long roller, so the radial, particularly for bearing results where the radial mounting dimension is limited. According to different use occasions, a bearing without an inner ring or a rolling needle and retainer assembly can be selected, the surface of a shaft neck and the surface of a shell hole which are matched with the bearing are directly used as the inner rolling surface and the outer rolling surface of the bearing, and in order to ensure that the load capacity and the running performance are the same as those of a bearing with a ferrule, the hardness, the processing precision and the surface quality of the surface of a raceway of the hole of the shaft or the shell are similar to those of the raceway of a bearing ferrule. Such bearings can only withstand radial loads.

However, when the conventional needle bearing is impacted by external force in the using process, the needle roller inside the conventional needle bearing may deform, and the normal operation of the bearing is influenced after the needle roller deforms; therefore, the existing requirements are not met, and a high-strength needle bearing is provided for the purpose.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a needle bearing of high strength to when the in-process that the needle bearing who proposes uses received the striking of external force in solving above-mentioned background art, probably lead to inside kingpin to take place to warp, and the kingpin will influence the problem of the normal operating of bearing after warping.

In order to achieve the above object, the utility model provides a following technical scheme: the high-strength needle bearing comprises a needle bearing main body, wherein the needle bearing main body comprises a needle fixing ring, an outer ring metal collar is arranged on the outer side of the needle fixing ring and is in combined connection with the outer ring metal collar, an inner ring metal collar is arranged on the inner side of the needle fixing ring and is in combined connection with the needle fixing ring, needle clamping grooves are formed in the outer surface of the needle fixing ring, a plurality of needle clamping grooves are formed in the needle fixing ring, a specially-made metal needle is arranged inside the needle clamping grooves and is in rotational connection with the needle clamping grooves, lubricating oil holes are formed in the outer surface of the outer ring metal collar, and the number of the lubricating oil holes is two.

Preferably, the high-hardness metal interlayers are arranged inside the outer ring metal collar and the inner ring metal collar and are fixedly connected with the outer ring metal collar and the inner ring metal collar.

Preferably, the high-hardness metal interlayer comprises a main support inner frame and a secondary support inner frame, and the main support inner frame and the secondary support inner frame are connected in combination.

Preferably, the main support inner frame is arranged in a hexagonal structure, the auxiliary support inner frame is arranged in a trapezoidal structure, and the side length of the auxiliary support inner frame is the same as that of the main support inner frame.

Preferably, chamfers are arranged at two ends of the special metal roller pin, and the vertical drop of the two ends is the same as the height of the roller pin clamping groove.

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

1. the utility model discloses an inside of outer lane metal collar and inner circle metal collar all is provided with a high rigidity metal intermediate layer, and this intermediate layer carries out the shaping with the collar together, and the inside of intermediate layer comprises hexagonal shape's main tributary strut inner frame and trapezoidal form's vice support inner frame, and the intercombination between two frames strengthens the support nature, and the intermediate layer is used for promoting the hardness of both sides collar, avoids the collar to appear deformation or fracture to a great extent after receiving the striking;

2. the utility model discloses a both ends of purpose-built metal kingpin are provided with the chamfer, because the width of cell body is fixed, will influence kingpin normal rotation when the department width that warp surpasss the cell body width, and be taper chamfer back with the kingpin both ends, just can become the face-like corner with the linear corner, like this when receiving the striking, can make area of contact increase, not only can the at utmost slow down the striking dynamics, even the chamfer department produces slight deformation, the width that the chamfer department will be greater than the kingpin in the middle of apart from the width of cell body, so can not influence kingpin rotation.

Drawings

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

FIG. 2 is a schematic view of the overall cross-sectional structure of the present invention;

fig. 3 is a schematic view of the high hardness metal sandwich structure of the present invention.

In the figure: 1. a needle bearing body; 2. an outer ring metal collar; 3. a needle roller fixing ring; 4. an inner ring metal collar; 5. specially manufacturing metal needle rollers; 6. a lubricating oil hole; 7. a high hardness metal interlayer; 8. the main support inner frame; 9. a secondary support inner frame; 10. a needle roller clamping groove.

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 high-strength needle bearing comprises a needle bearing main body 1, wherein the needle bearing main body 1 comprises a needle fixing ring 3, an outer ring metal collar 2 is arranged on the outer side of the needle fixing ring 3 and is installed and wrapped on the outer side of a needle to protect the needle from the outside, the needle fixing ring 3 is connected with the outer ring metal collar 2 in a combined mode, an inner ring metal collar 4 is arranged on the inner side of the needle fixing ring 3 and is installed and wrapped on the inner side of the needle to support and protect the needle from the inner side, the inner ring metal collar 4 is connected with the needle fixing ring 3 in a combined mode, needle clamping grooves 10 are formed in the outer surface of the needle fixing ring 3, a plurality of needle clamping grooves 10 are used for installing and fixing the needle, special metal needles 5 are arranged inside the needle clamping grooves 10, the special metal needles 5 are rotatably connected with the needle clamping grooves 10, and lubricating oil, and the lubricating oil holes 6 are two, so that the lubricating oil can be dripped through the oil holes on the surface of the outer ring metal shaft collar 2 in the using process.

Further, the inside of outer lane metal collar 2 and inner circle metal collar 4 all is provided with high rigidity metal intermediate layer 7, and high rigidity metal intermediate layer 7 and outer lane metal collar 2 and inner circle metal collar 4 fixed connection, and the main effect of intermediate layer is used for promoting the hardness of both sides ring axle, avoids the ring axle to appear deformation or fracture to a great extent after receiving the striking.

Further, the high-hardness metal interlayer 7 comprises a main support inner frame 8 and an auxiliary support inner frame 9, and the main support inner frame 8 and the auxiliary support inner frame 9 are connected in a combined mode, so that the impact resistance of the interlayer is improved.

Further, main tributary props the internal frame 8 and sets up to the hexagon structure, and vice support internal frame 9 sets up to the trapezium structure, and vice support internal frame 9 is the same with 8 side lengths in the main tributary props, is convenient for carry out the concatenation combination and uses.

Further, the chamfers are arranged at two ends of the specially-made metal roller pin 5, the vertical drop of the two ends is the same as the height of the roller pin clamping groove 10, the traditional roller pin is mostly cylindrical, the possibility that the two ends deform when being impacted is increased, the normal rotation of the roller pin cannot be influenced once deforming, the two ends of the roller pin are designed into the taper chamfers, meanwhile, the diameter of the end face is ensured to be the same as the height of the groove body, the linear acting point is changed into a surface shape, and therefore when the impact is exerted, the impact force can be relieved to the greatest extent, and the rotation of the roller pin cannot be influenced even if slight deformation is generated.

The working principle is as follows: when in use, the special metal roller pin 5 is arranged in the roller pin clamping groove 10 on the surface of the roller pin fixing ring 3, chamfers are arranged at two ends of the special metal roller pin 5, because the traditional roller pin is mostly cylindrical, the corners are easy to deform when the two ends are impacted, and once the corners deform, the width of the groove body is fixed, the normal rotation of the roller pin can be influenced when the width of the deformed part exceeds the width of the groove body, and after the two ends of the roller pin are tapered and chamfered, the linear corners can be changed into planar corners, so that the contact area can be increased when the roller pin is impacted, the impact force can be relieved to the maximum extent, the rotation of the roller pin can not be influenced even if the chamfered part slightly deforms, because the width of the chamfered part from the groove body is larger than the width of the roller pin in the middle part, and finally the outer ring metal collar 2 and the inner ring metal collar 4 are respectively arranged at the inner, and a high-hardness metal interlayer 7 is arranged in the outer ring metal collar 2 and the inner ring metal collar 4, the interlayer is composed of a hexagonal main support inner frame 8 and a trapezoidal auxiliary support inner frame 9, and the main function of the interlayer is to improve the hardness of the collars on two sides and avoid large deformation or fracture of the collars after being impacted.

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. A needle bearing of high strength, includes needle bearing main part (1), its characterized in that: the needle bearing main body (1) comprises a needle fixing ring (3), an outer ring metal collar (2) is arranged on the outer side of the needle fixing ring (3), the needle fixing ring (3) is connected with the outer ring metal collar (2) in a combined mode, an inner ring metal collar (4) is arranged on the inner side of the needle fixing ring (3), the inner ring metal collar (4) is connected with the needle fixing ring (3) in a combined mode, needle clamping grooves (10) are formed in the outer surface of the needle fixing ring (3), a plurality of needle clamping grooves (10) are formed in the needle clamping grooves (10), special needle metal needles (5) are arranged inside the needle clamping grooves (10), the special needle metal needles (5) are rotatably connected with the needle clamping grooves (10), lubricating oil holes (6) are formed in the outer surface of the outer ring metal collar (2), and the number.

2. A high strength needle roller bearing in accordance with claim 1, wherein: and high-hardness metal interlayers (7) are arranged inside the outer ring metal collar (2) and the inner ring metal collar (4), and the high-hardness metal interlayers (7) are fixedly connected with the outer ring metal collar (2) and the inner ring metal collar (4).

3. A high strength needle roller bearing in accordance with claim 2, wherein: the high-hardness metal interlayer (7) comprises a main support inner frame (8) and a secondary support inner frame (9), and the main support inner frame (8) and the secondary support inner frame (9) are connected in a combined mode.

4. A high strength needle roller bearing in accordance with claim 3, wherein: the main support inner frame (8) is arranged to be of a hexagonal structure, the auxiliary support inner frame (9) is arranged to be of a trapezoidal structure, and the side length of the auxiliary support inner frame (9) is the same as that of the main support inner frame (8).

5. A high strength needle roller bearing in accordance with claim 1, wherein: chamfers are arranged at two ends of the special metal roller pin (5), and the vertical drop of the two ends is the same as the height of the roller pin clamping groove (10).