CN213298584U

CN213298584U - Ball screw bearing assembly

Info

Publication number: CN213298584U
Application number: CN202021648828.5U
Authority: CN
Inventors: 夏玉明; 朱杰福
Original assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Wenzhou Mute Automobile Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-05-28
Anticipated expiration: 2030-08-10

Abstract

The utility model discloses a ball screw bearing subassembly, including the screw shaft, be equipped with the bulge loop that sets up with screw shaft an organic whole on the lateral wall of screw shaft, the outside cover of bulge loop is equipped with the outer lane with the coaxial setting of bulge loop, is equipped with interior raceway on the outer wall of bulge loop, is equipped with the outer raceway relative with interior raceway on the inner wall of outer lane, is equipped with the roller between interior raceway and the outer raceway, bulge loop, roller and outer lane group cost the utility model discloses a bearing, the inner circle that has replaced current bearing with the bulge loop of the integrative setting of screw shaft, improve the bearing capacity of bearing, the utility model discloses simple structure, easy to assemble, and the bulge loop can be done thinner under the condition that does not reduce bearing performance, more adapt to the automotive industry of continuous development.

Description

Ball screw bearing assembly

Technical Field

The utility model belongs to the technical field of auto-parts, concretely relates to ball bearing assembly.

Background

Brake system is one of the important constitution of car, current brake system includes ball and bearing usually, ball includes screw shaft and nut, the bearing includes the inner circle, outer lane and roller, current bearing and screw shaft components of a whole that can function independently set up and inner circle and screw shaft interference fit, current bearing passes through the inner circle and realizes the fixed of bearing and screw shaft with the interference fit of screw shaft, in the in-service use, the bearing can receive great axial load, current fixed mode hardly guarantees the relative stillness between bearing and the screw shaft, and current bearing is mostly open bearing, in the actual motion in-process, outside pollutant, easily enter into inside the bearing like dust and metal fillings, the inside lubricating oil of bearing also leaks easily, influence the bearing operation.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a ball bearing assembly capable of bearing larger axial load.

In order to realize the purpose, the utility model discloses a technical scheme is: the utility model provides a ball screw bearing subassembly, includes the screw shaft, be equipped with the bulge loop that sets up with screw shaft an organic whole on the lateral wall of screw shaft, the outside cover of bulge loop is equipped with the outer lane with the coaxial setting of bulge loop, be equipped with interior raceway on the outer wall of bulge loop, be equipped with the outer raceway relative with interior raceway on the inner wall of outer lane, be equipped with the roller between interior raceway and the outer raceway.

Among the above-mentioned technical scheme, bulge loop, roller and outer lane group become the utility model discloses a bearing, the bulge loop that sets up with screw shaft an organic whole has replaced the inner circle of current bearing, improves the bearing capacity of bearing, the utility model discloses simple structure, easy to assemble, and the bulge loop can be done thinner under the condition that does not reduce the bearing performance, more adapt to the automotive industry of constantly developing.

As a further setting of the utility model, be equipped with the retaining ring between outer lane and the bulge loop, the retaining ring is located the both sides of roller, the outer edge of retaining ring is equipped with the stiff end, be equipped with on the outer lane and supply stiff end embedding and fixed embedded groove, there is the clearance between the outer wall of retaining ring and bulge loop.

Among the above-mentioned technical scheme, there is the clearance retaining ring and the outer wall of bulge loop, produces the friction when preventing that relative rotation from appearing in retaining ring and bulge loop, makes screw shaft or outer lane rotate more smoothly, and the retaining ring can block the great pollutant contact roller of volume, like the part that becomes flexible and drops, inside the less pollutant of reduction volume gets into the bearing, like dust, metal fillings etc. reduce the inside lubricating oil leakage of bearing simultaneously.

As the utility model discloses a further setting, the stiff end is U font and the one side of keeping away from the roller of opening orientation, the embedded groove is located the inner wall of outer lane, be equipped with the breach that makes things convenient for the stiff end embedding on the lateral wall that the embedded groove kept away from the roller.

Among the above-mentioned technical scheme, the breach makes things convenient for stiff end embedding embedded groove, and the shape of stiff end makes the stiff end can carry out certain deformation, makes things convenient for the embedding embedded groove, makes stiff end and embedded groove keep interference fit's state simultaneously, prevents that relative displacement from appearing with the outer lane in the in-service use of retaining ring.

As a further arrangement of the present invention, the retainer ring is provided with at least two annular grooves toward one end of the protruding ring.

Among the above-mentioned technical scheme, the annular groove makes and forms labyrinth between the outer wall of retaining ring and bulge loop, improves the sealed effect of retaining ring.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is a sectional view of an embodiment of the present invention;

fig. 2 is an enlarged view of a portion I of fig. 1.

Detailed Description

When terms such as "upper" and "lower", "right" and "left" or similar relative expressions are used in the present embodiment, these refer only to the accompanying drawings and are not necessarily actual usage.

The specific embodiment of the utility model is shown in fig. 1-2, a ball screw bearing assembly, including a screw shaft 01, a protruding ring 011 arranged integrally with the screw shaft 01 is arranged on the side wall of the screw shaft 01, an outer ring 02 coaxially arranged with the protruding ring 011 is sleeved outside the protruding ring 011, an inner raceway 0111 is arranged on the outer wall of the protruding ring 011, an outer raceway 021 opposite to the inner raceway 0111 is arranged on the inner wall of the outer ring 02, a roller 03 is arranged between the inner raceway 0111 and the outer raceway 021, the protruding ring 011, the roller 03 and the outer ring 02 form the bearing of the embodiment, the protruding ring 011 arranged integrally with the screw shaft 01 replaces the inner ring of the existing bearing, the bearing capacity of the bearing of the embodiment is improved, the structure of the embodiment is simple, the installation is convenient, and the protruding ring 011 can be thinner under the condition of not reducing the bearing capacity, and is more suitable for the automobile industry developing continuously, a retainer ring 04 is arranged between the outer ring 02 and the protruding ring 011, the retainer rings 04 are positioned at two sides of the roller 03, the outer edges of the retainer rings 04 are provided with fixing ends 041, the outer ring 02 is provided with an embedded groove 022 for embedding and fixing the fixing ends 041, a gap exists between the retainer rings 04 and the outer wall of the convex ring 011, friction is prevented from being generated when the retainer rings 04 and the convex ring 011 rotate relatively, so that the screw shaft 01 or the outer ring 02 can rotate smoothly, the retainer rings 04 can prevent pollutants with larger volume from contacting the roller 03, such as loose and falling parts, and reduce the pollutants with smaller volume from entering the inside of the bearing, such as dust, metal chips and the like, and simultaneously reduce the leakage of lubricating oil inside the bearing, the fixing ends 041 are U-shaped and open towards one side far away from the roller 03, the side wall of the embedded groove 022 far away from the roller 03 is provided with a notch 0221 facilitating the embedding of the fixing ends 041, the fixing ends 041 can be deformed in a certain interference manner by the shape of the fixing ends 041, and, prevent that retaining ring 04 and outer lane 02 relative displacement from appearing in actual use, retaining ring 04 is equipped with two at least annular grooves 041 towards the one end of bulge loop 011, and in this embodiment, annular groove 042 is two, and annular groove 042 makes and forms labyrinth between retaining ring 04 and the outer wall of bulge loop 011, improves retaining ring 04's sealed effect.

The utility model discloses do not confine the above-mentioned embodiment to, the general technical personnel in this field can adopt other multiple embodiments to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope.

Claims

1. A ball screw bearing assembly comprising a screw shaft, characterized in that: the novel screw rod shaft is characterized in that a convex ring which is integrally arranged with the screw rod shaft is arranged on the side wall of the screw rod shaft, an outer ring which is coaxially arranged with the convex ring is sleeved on the outer side of the convex ring, an inner rolling way is arranged on the outer wall of the convex ring, an outer rolling way which is opposite to the inner rolling way is arranged on the inner wall of the outer ring, and a roller is arranged between the inner rolling way and the outer rolling way.

2. A ball screw bearing assembly according to claim 1, wherein: the roller bearing is characterized in that a retainer ring is arranged between the outer ring and the convex ring and located on two sides of the roller, a fixed end is arranged on the outer edge of the retainer ring, an embedded groove for embedding and fixing the fixed end is formed in the outer ring, and a gap exists between the retainer ring and the outer wall of the convex ring.

3. A ball screw bearing assembly according to claim 2, wherein: the U-shaped fixing end is provided with an opening facing the side far away from the roller, the embedded groove is formed in the inner wall of the outer ring, and a notch enabling the fixing end to be embedded conveniently is formed in the side wall far away from the roller.

4. A ball screw bearing assembly according to claim 3, wherein: and one end of the retainer ring facing the convex ring is provided with at least two annular grooves.