CN217271462U

CN217271462U - High-rotation-speed anti-deflection injection molding retainer

Info

Publication number: CN217271462U
Application number: CN202220260372.8U
Authority: CN
Inventors: 郑广会
Original assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2022-02-07
Filing date: 2022-02-07
Publication date: 2022-08-23
Anticipated expiration: 2032-02-07

Abstract

The utility model provides a high-speed anti-deflection injection retainer, which belongs to the technical field of bearing retainers and comprises a retainer body, wherein an inward concave notch is arranged on the inner cylindrical surface and/or the outer cylindrical surface of the retainer body, at least two ball pockets are uniformly arranged at the upper end of the retainer body along the circumferential direction, an oil groove is arranged on the surface of the inner side of each ball pocket, which is used for contacting with a bearing rolling element, two sides of each ball pocket are provided with holding claws used for preventing the bearing rolling element from dropping out of the ball pocket, and the back surfaces of the holding claws are provided with reinforcing ribs; the beneficial effects of the utility model reside in that, it has performances such as high rotational speed, high load, low noise, anticorrosive interference, lightweight.

Description

High-rotating-speed anti-deflection injection molding retainer

Technical Field

The utility model belongs to the technical field of the bearing keeps ware, concretely relates to high rotational speed is prevented deflecting and is moulded plastics and keep ware.

Background

With the rapid development of the related industries such as machinery and aviation, it is one of the trends of the current development to increase the rotating speed of the rotating shaft of the rotating system and increase the working efficiency, and due to the development of the mechanical precision machining technology, the requirement for the precision of the rotating shaft is gradually increased, so that the high-speed performance and the precision of the rolling bearing must be continuously improved along with the requirement for the rotating speed and the precision of the mechanical rotating shaft.

The high-speed performance and precision of the rolling bearing are affected by the material of the bearing and the machining precision, and the structural design of the bearing is also significantly affected. In recent years, due to the increasing awareness of energy saving and environmental protection, the parts of vehicles and precision machines have been developed to be light weight and energy saving, and the rolling bearings used in the vehicle and precision machine industries have the same design requirements as those of light weight and energy saving, so how to develop a retainer which is light weight, energy saving and suitable for high-speed rotation has become an object of efforts of the relevant industries.

Disclosure of Invention

The utility model provides a technical problem provide one kind can guarantee that the high-speed operation of bearing is stable when lightening bearing weight, and avoid the bearing rolling member to take place the high rotational speed of skew by a wide margin at the rotation in-process and prevent deflecting and mould plastics and keep the ware.

In order to solve the technical problem, the utility model provides a technical scheme is a high rotational speed is prevented deflecting and is moulded plastics and keep ware, and it is including keeping the ware body, be provided with inside sunken breach on keeping the interior cylinder face of ware body and/or outer cylinder face, keep ware body upper end evenly to be provided with two at least ball pockets along the circumferencial direction, the ball pocket inboard is used for being provided with the oil groove on the surface with the contact of bearing rolling element, the ball pocket both sides are provided with the claw of embracing that is used for preventing that the bearing rolling element from deviating from the ball pocket, it is provided with the strengthening rib to embrace the claw back of the body. Therefore, in the working process of the bearing, the bearing rolling element can be fixed by the ball pocket and the holding claws on the ball pocket, and the bearing rolling element is prevented from deviating from a central line or being separated from the ball pocket; simultaneously the utility model discloses can also continuously lubricate the bearing rolling member through the lubricating oil in the inboard oil groove of ball pocket, reduce the bearing rolling member and keep the frictional force between the ware body to and reduce the noise that the bearing rolling member rotated the in-process and produced.

Furthermore, the inner cylindrical surface and the outer cylindrical surface of the retainer body are both provided with inwards concave gaps, and in the same horizontal section, the depth of the gap formed in the inner cylindrical surface of the retainer body is the same as the depth of the gap formed in the outer cylindrical surface of the retainer body, so that the weight of the retainer body can be reduced through the gaps, and meanwhile, the bearing rolling piece in the ball pocket is guaranteed to be always located at the central position corresponding to the ball pocket and the central position of the retainer body, thereby avoiding the bearing rolling piece from deflecting, and enhancing the strength and stability of the whole retainer body.

Further, be provided with the pocket hole on the ball pocket, pocket hole pore wall is including the circular arc that is located pocket hole bottom concave section and the vertical interior concave section that is located pocket hole both sides, the vertical direction of vertical interior concave section is parallel with the axial lead who keeps the ware body, the top of vertical interior concave section bottom and the circular arc interior concave section is connected, vertical interior concave section top and the claw point that corresponds embracing the claw between form oblique straight interior concave section. Like this at the roll in-process of bearing rolling element, because the utility model provides a ball pocket pore wall structure of keeping the ware body has taken place to change, is given first place to change the point contact by the face contact between ball pocket and the bearing rolling element and gives first place to reduce area of contact and frictional force between bearing rolling element and the pocket hole, and improve the high speed performance who corresponds the bearing, reduce calorific capacity of bearing operation in-process.

Furthermore, the bottom of the vertical concave section is connected with the circular arc concave section through a tangent concave section, and the tangent concave section is tangent with the circular arc concave section and enables smooth transition connection between the vertical concave section and the circular arc concave section.

Furthermore, the circular arc concave section, the tangent concave section, the vertical concave section and the oblique straight concave section are symmetrically arranged relative to the ball pocket, and the circle center of the circular arc concave section is the symmetric center of the vertical concave sections at the two sides.

Further, the oil groove sets up on the circular arc inner concave section of pocket pore wall, like this in the working process of bearing, after lubricating oil gets into and keeps the ware body, the utility model discloses can store an amount of lubricating oil in the oil groove to guarantee the good lubrication of bearing.

Furthermore, the retainer body is manufactured by adopting an integral injection molding process, and the manufacturing process is simple and efficient.

Furthermore, the retainer body is made of glass fiber reinforced nylon and can stably work at-40 ℃ to 150 ℃.

According to the technical scheme, the utility model has the advantages of it is following: firstly, the utility model reduces the weight of the retainer body by respectively arranging notches at the inner side and the outer side of the retainer body; meanwhile, the bearing rolling piece in the ball pocket can be ensured to be always positioned at the central position of the retainer body, and the bearing rolling piece is prevented from deflecting in the bearing rotating process; secondly, the utility model can store lubricating oil through the oil groove inside the ball pocket and continuously lubricate the bearing rolling element inside the ball pocket through the lubricating oil inside the oil groove, thereby reducing the friction between the bearing rolling element and the ball pocket and reducing the noise generated when the bearing rolling element rolls; additionally, the utility model discloses it is main to change into the point contact by the face contact between ball pocket and the bearing rolling member to reduce area of contact and frictional force between bearing rolling member and the pocket hole, and improve the high speed performance who corresponds the bearing, reduce calorific capacity of bearing operation in-process.

Drawings

In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a top view of an embodiment of the present invention.

Fig. 3 is a cross-sectional view taken at a-a in fig. 2.

In the figure: 1. pocket hole, 2, the concave section in the circular arc, 3, embrace the claw, 4, strengthening rib, 5, vertical concave section, 6, the interior concave section of oblique straight, 7, outer cylinder face, 8, oil groove, 9, interior cylinder face, 10, breach.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 3, the utility model provides a high rotational speed is prevented deflecting and is moulded plastics and keep ware, it includes integrative injection moulding's the ware body that keeps, keep ware body upper end evenly to be provided with two at least ball pockets along the circumferencial direction, ball pocket both sides are provided with the claw 3 of embracing that is used for preventing that the bearing rolling element from deviating from the ball pocket, it is provided with strengthening rib 4 to embrace the 3 backs of claw. In addition, an inward concave notch 10 is arranged on the inner cylindrical surface 9 and/or the outer cylindrical surface 7 of the retainer body, and when the inward concave notch 10 is arranged on both the inner cylindrical surface 9 and the outer cylindrical surface 7 of the retainer body, the notch depth of the notch 10 arranged on the inner cylindrical surface 9 of the retainer body is the same as the notch depth of the notch 10 arranged on the outer cylindrical surface 7 of the retainer body in the same horizontal section, so that the bearing rolling piece arranged in the retainer body is always positioned at the central position corresponding to the ball pocket and the central position of the retainer body, and the bearing rolling piece is prevented from deflecting in the high-speed rotation process.

In addition, still be provided with pocket hole 1 that is used for holding the bearing rolling piece on the ball pocket, the pore wall of pocket hole 1 is including the circular arc that is located pocket hole 1 bottom concave section 2 and the vertical interior concave section 5 that is located pocket hole 1 both sides, the vertical direction of vertical interior concave section 5 is parallel with the axial lead that keeps the ware body, the top of the interior concave section 2 of vertical interior concave section 5 bottom and circular arc meets through the interior concave section of tangent line, forms the interior concave section 6 of oblique straight between the claw point of the 5 tops of vertical interior concave section and the corresponding claw 3, moreover the interior concave section of circular arc 2, the interior concave section of tangent line, vertical interior concave section 5, the interior concave section 6 of oblique straight are the symmetry setting for the ball pocket in place, the centre of a circle of the interior concave section 2 of circular arc is the symmetrical center of the vertical concave section 5 in both sides.

In addition, as preferred, the utility model discloses still be provided with oil groove 8 on the circular arc concave section 2 on 1 pore walls of ball pocket to store lubricating oil through oil groove 8, and continuously lubricate the bearing rolling member. And the oil groove 8 can be a circular groove, a square groove, or a special-shaped groove such as a U-shaped groove.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The high-rotation-speed deflection-preventing injection molding retainer is characterized by comprising a retainer body, wherein an inward-recessed notch is formed in the inner cylindrical surface and/or the outer cylindrical surface of the retainer body, at least two ball pockets are uniformly arranged at the upper end of the retainer body in the circumferential direction, oil grooves are formed in the surfaces, contacting with bearing rolling elements, of the inner sides of the ball pockets, clamping claws used for preventing the bearing rolling elements from falling off the ball pockets are arranged on two sides of each ball pocket, and reinforcing ribs are arranged on the back surfaces of the clamping claws.

2. The high-speed anti-deflection injection-molded retainer according to claim 1, wherein the inner cylindrical surface and the outer cylindrical surface of the retainer body are both provided with inwardly recessed notches, and the depth of the notch formed in the inner cylindrical surface of the retainer body is the same as the depth of the notch formed in the outer cylindrical surface of the retainer body in the same horizontal section.

3. The high-speed anti-deflection injection molding retainer according to claim 1 or 2, wherein the ball pocket is provided with a pocket hole, the wall of the pocket hole comprises an arc concave section at the bottom of the pocket hole and vertical concave sections at two sides of the pocket hole, the vertical direction of the vertical concave sections is parallel to the axial lead of the retainer body, the bottom of the vertical concave sections is connected with the top of the arc concave sections, and oblique straight concave sections are formed between the tops of the vertical concave sections and the claw tips of the corresponding holding claws.

4. The high-speed anti-deflection injection molding retainer according to claim 3, wherein the bottom of the vertical concave section is connected with the circular arc concave section through a tangent concave section which is tangent with the circular arc concave section.

5. The high-speed anti-deflection injection molding retainer according to claim 4, wherein the circular arc concave section, the tangent concave section, the vertical concave section and the oblique straight concave section are symmetrically arranged relative to the ball pocket, and the circle center of the circular arc concave section is the symmetric center of the vertical concave sections at two sides.

6. The high-speed anti-deflection injection molded retainer according to claim 3, wherein the oil groove is provided on a circular arc concave section of the pocket wall.

7. The high-speed anti-deflection injection molded retainer according to claim 1, wherein the retainer body is manufactured in an integral injection molding process.

8. The high-speed anti-deflection injection molded retainer according to claim 1, wherein the retainer body is made of glass fiber reinforced nylon and can stably operate at-40 ℃ to 150 ℃.