阅读说明：本技术 机床主轴或变速箱用带弹簧销的铜保持架圆柱滚子轴承 (Copper retainer cylindrical roller bearing with spring pin for machine tool spindle or gearbox ) 是由 赵志强 杨中良 王恩来 于 2018-06-14 设计创作，主要内容包括：本发明的名称为机床主轴或变速箱用带弹簧销的铜保持架圆柱滚子轴承。属于圆柱滚子轴承技术领域。它主要是解决现有由盖和座通过高频加热铆接的铜保持架存在工艺性形位误差和滚子外径与兜孔壁产生摩擦的问题。它的主要特征是：所述铜保持架为由内侧缘、外侧缘和若干个柱孔横梁组成的一体结构；内侧缘与外侧缘之间用柱孔横梁连接；相邻柱孔横梁之间的空间形成柱孔,柱孔横梁的两侧面中间为柱孔壁,柱孔壁3的两侧为平面；柱孔两端的内侧缘与外侧缘上设有销孔；滚动体的两端设有凹穴,滚动体通过位于两侧销孔中的弹簧销锁住。本发明具有高强度、高转速、长寿命、低振动、低噪音、润滑良好、散热均匀、便于加工和装配效率高的特点,可适用于精密设备。(The invention relates to a copper retainer cylindrical roller bearing with a spring pin for a machine tool main shaft or a gearbox. Belongs to the technical field of cylindrical roller bearings. The problem that the existing copper retainer riveted by a cover and a seat through high-frequency heating has process form and position errors and the problem that the outer diameter of a roller rubs with the wall of a pocket hole is solved. It is mainly characterized in that: the copper retainer is an integrated structure consisting of an inner side edge, an outer side edge and a plurality of column hole cross beams; the inner side edge and the outer side edge are connected by a column hole cross beam; a column hole is formed in the space between the adjacent column hole cross beams, a column hole wall is arranged in the middle of each two side faces of each column hole cross beam, and planes are arranged on two sides of each column hole wall 3; pin holes are arranged on the inner side edge and the outer side edge of the two ends of the column hole; the two ends of the rolling body are provided with recesses, and the rolling body is locked by spring pins in pin holes at two sides. The invention has the characteristics of high strength, high rotating speed, long service life, low vibration, low noise, good lubrication, uniform heat dissipation, convenient processing and high assembly efficiency, and can be suitable for precision equipment.)

1. The utility model provides a lathe main shaft or for gearbox copper holder cylindrical roller bearing of taking spring catch, includes inner circle, outer lane, copper holder and rolling element, its characterized in that: the copper retainer is an integrated structure consisting of an inner side edge (8), an outer side edge (7) and a plurality of column hole cross beams (5); the inner side edge (8) and the outer side edge (7) are connected by a column hole cross beam (5); the space between the adjacent column hole cross beams (5) forms a column hole, the middle of two side surfaces of each column hole cross beam (5) is provided with a column hole wall (3), and two sides of each column hole wall (3) are planes; pin holes (4) are arranged on the inner side edge (8) and the outer side edge (7) at two ends of the column hole; both ends of the rolling body are provided with recesses (2), and the rolling body is locked by spring pins (1) positioned in pin holes (4) on both sides.

2. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 1, characterized in that: the spring pin (1) is formed by rolling a spring steel plate, an axial round hole is formed in the middle of the spring pin, and chamfers are arranged at two ends of the round hole.

3. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 1 or 2, characterized in that: the pin holes (4) are round holes.

4. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 2, characterized in that: the thickness of the spring steel plate is 0.35mm, and the spring steel plate is quenched.

5. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 1 or 2, characterized in that: the planes on the two sides of the cylindrical hole wall (3) are parallel to the plane formed by locking the axial lead of the adjacent rolling bodies and the central axis of the cylindrical roller bearing.

6. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 1 or 2, characterized in that: the central axes of the concave cavities (2) and the cylindrical roller bearing are concentric.

7. The copper cage cylindrical roller bearing with spring pin for machine tool spindle or gearbox according to claim 1 or 2, characterized in that: the outer diameter of the spring pin (1) and the hole wall of the recess (2) have a clearance of 0.35-0.50 mm.

Technical Field

The invention belongs to the technical field of cylindrical roller bearings. In particular to a cylindrical roller bearing of an entity copper retainer with a spring pin, which is mainly suitable for high-precision equipment such as a machine tool main shaft, a gear box and the like.

Background

The cylindrical roller bearing comprises an inner ring, an outer ring, a retainer and rolling bodies, wherein the retainer uniformly distributes rollers on the circumference of a roller path to guide and drive the rollers to roll on the correct roller path. At present, the cylindrical roller bearing of the copper retainer is adopted, and the retainer is in two parts, namely, the annular retainer bodies of the cover and the seat are butted together and riveted together through high-frequency heating. The structural retainer has the following disadvantages: the design structure is not reasonable enough, the cover and the seat are riveted through high-frequency heating, parallelism can be influenced during high-speed operation due to the technological form and position errors of the cover and the seat, friction is generated between the outer diameter of the roller and the wall of the pocket hole, and the requirements of low vibration and low noise required by precision equipment cannot be met; meanwhile, the heat dissipation is poor, and an oil film is not easy to form, so that good lubrication of the product in the high-speed running process cannot be ensured; in addition, the manufacturing manufacturability is poor, the working procedures are multiple, the cost is high, and the bearing assembling efficiency is low.

Disclosure of Invention

The technical problem to be solved by the invention is to overcome the above disadvantages in the prior art and provide an integrated spring pin solid copper cage cylindrical roller bearing which can meet the requirements of outer ring guidance or inner ring guidance.

In order to achieve the purpose, the technical solution of the invention is as follows: the utility model provides a lathe main shaft or for gearbox copper holder cylindrical roller bearing of taking spring catch, includes inner circle, outer lane, copper holder and rolling element, its characterized in that: the copper retainer is an integrated structure consisting of an inner side edge, an outer side edge and a plurality of column hole cross beams; the inner side edge and the outer side edge are connected by a column hole cross beam; a column hole is formed in the space between the adjacent column hole cross beams, column hole walls are arranged in the middle of two side faces of each column hole cross beam, and planes are arranged on two sides of each column hole wall 3; pin holes are arranged on the inner side edge and the outer side edge of the two ends of the column hole; and recesses are arranged at two ends of the rolling body, and the rolling body is locked by spring pins positioned in pin holes at two sides.

According to the technical scheme, the spring pin is formed by rolling a spring steel plate, an axial round hole is formed in the middle of the spring pin, and chamfers are arranged at two ends of the round hole.

The pin hole in the technical scheme of the invention is a round hole.

The spring steel plate in the technical solution of the invention has the thickness of 0.35mm and is quenched.

The plane on two sides of the wall of the cylindrical hole is parallel to the plane formed by locking the axial lead of the adjacent rolling bodies and the central axial lead of the cylindrical roller bearing.

The pockets and the cylindrical roller bearing central axis in the technical solution of the invention are concentric.

The outer diameter of the spring pin and the wall of the recess hole have a clearance of 0.35-0.50 mm.

Compared with the prior art, the invention has the following advantages and effects: overall structure is reasonable, and the holder is structure as an organic whole, uses and has high strength, high rotational speed and long-life, satisfies outer lane guide or inner circle guide, and the spring catch guarantees through the roller pocket that the external diameter of roller does not do the post wall contact, guarantees low vibration and low noise, realizes good lubrication and even heat dissipation, and the weight is light, and make it have good performance and be convenient for process, and assembly process simplifies, improves assembly efficiency.

Drawings

Fig. 1 is a front view structural view of an embodiment of the copper cage of the present invention.

Fig. 2 is a view a-a of fig. 1.

Fig. 3 is an enlarged sectional view of the copper cage of the present invention.

Fig. 4 is an enlarged cross-sectional view of the spring pin of the present invention.

Fig. 5 is a top view of fig. 4.

FIG. 6 is an enlarged cross-sectional view of the pockets at the ends of the roller of the present invention.

Fig. 7 is an axial sectional view of the cylindrical roller bearing of the present invention.

In the figure: 1. a spring pin; 2. a pocket; 3. a pillar bore wall; 4. a pin hole; 5, a column hole beam; 6. a cylindrical roller; 7. an outer edge; 8. the inner edge.

Detailed Description

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

Referring to fig. 1 to 7, the copper cage cylindrical roller bearing with spring pins for a machine tool spindle or a transmission case of the present invention includes an inner ring, an outer ring, a copper cage, and a rolling element, wherein the rolling element is a cylindrical roller 6. The copper retainer is an integrated structure consisting of an inner side edge 8, an outer side edge 7 and a plurality of column hole cross beams 5. The inner edge 8 and the outer edge 7 are connected by a column hole cross beam 5, and a column hole is formed in a space between adjacent column hole cross beams 5. The middle of two side surfaces of the column hole beam 5 is provided with a column hole wall 3, two sides of the column hole wall 3 are planes, and the planes on the two sides of the column hole wall 3 are parallel to a plane formed by locking the axial lead of the adjacent rolling body and the central axis of the cylindrical roller bearing. The inner edge 8 and the outer edge 7 at two ends of the column hole are provided with pin holes 4, and the pin holes 4 are round holes. The two ends of the cylindrical roller 6 are provided with the concave cavities 2, and the concave cavities 2 are concentric with the central axis of the cylindrical roller bearing. The spring pin 1 is formed by rolling a spring steel plate with the thickness of 0.35mm, an axial round hole is formed in the middle, chamfers are arranged at two ends of the round hole, and quenching treatment is carried out. The outer diameter of the spring pin 1 and the hole wall of the recess 2 have a clearance of 0.35-0.50 mm. The cylindrical rollers 6 are locked by the spring pins 1 in the pin holes 4 on both sides.

The invention is designed into outer ring guide or inner ring guide, thereby reducing the weight of the retainer, not only reducing the centrifugal action of the bearing in the operation process, but also solving the problems of heat dissipation and lubrication, and simultaneously ensuring the high rotating speed of the bearing, thereby realizing the low vibration and low noise of the bearing.

The invention is suitable for precision equipment, has higher limit rotating speed and higher requirement on bearing capacity, and relatively fixes the cylindrical roller 6 through the spring pin 1 and the recess 2 on the copper retainer.

When the cylindrical roller 6 is installed, the inner ring is installed, then the cylindrical roller 6 with the concave cavities 2 at two ends is installed into the cylindrical hole from the outer opening, and finally the outer ring is sleeved. Or the outer ring can be installed firstly, the cylindrical roller 6 is installed into the cylindrical hole from the inner opening, and then the inner ring is sleeved. The spring pin 1 is inserted into the recess 2.

Compared with the prior art, the invention has the following advantages: the structure is simple, the processing is convenient, the material is saved, and the cost is greatly reduced; because the outer diameter of the cylindrical roller 6 is not contacted with the wall 3 of the column hole, the core part of the cavity 2 has extremely low rotating speed, small friction coefficient of the pin column and good noise reduction and vibration reduction performance; the tensile strength is high; the lubricating property is good, the structure of the bearing is optimized, and the service life of the bearing can be prolonged by 2 times. The social benefit and the enterprise economic benefit are improved.