CN2835691Y

CN2835691Y - Conjoined bearing mandrel

Info

Publication number: CN2835691Y
Application number: CN 200520107450
Authority: CN
Inventors: 李长琦
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-27
Filing date: 2005-05-27
Publication date: 2006-11-08
Anticipated expiration: 2015-05-27

Abstract

The utility model relates to a conjoined bearing core shaft, which is mainly composed of a core shaft (1), a locating piece (2) and a standard bearing (3), wherein the standard bearing (3) is sheathed on the core shaft (1) and is fixed in the fixed position of the core shaft (1) by the locating piece (2). The utility model has a structural form different from conventional integrated bearing core shafts, and thus, the difficulty of production and fabrication technology is simplified; thus, the import conventional products can be domestically produced under the condition of consistent requirements of use technology.

Description

The piece bearing mandrel

Technical field

The utility model relates to a kind of piece bearing mandrel that is used on the spinning equipment, refers to that especially the form of this structure is different from the piece bearing mandrel of commonly using (external import parts), and selects high-quality standard rolling bearing for use, adopts the structural type of suit assembling and locating piece location.

Background technique

The piece bearing mandrel is the key member that is applied on the spinning equipment wrapping head chuck, this class A of geometric unitA is an import parts in China mostly, its structural type is asked for an interview Fig. 1, raceway 11 as the piece bearing inner ring is that directly processing is on mandrel, this brings great difficulty with regard to the processing of giving mandrel, the for example selection of material, the heat processing technique of material especially will satisfy the processing of the ball road of bearing technology, and technology difficulty is very big, such as raceway tangent plane planeness, ovality is with respect to the perpendicularity of mandrel, vibration characteristics, fracture characteristics or the like, otherwise can directly influence the operation of a machine stability and working life.

Because domestic existing processing technology level is compared a certain distance in addition with external industrial advanced country, for this reason, addressing the above problem just must be in conjunction with the national conditions of China, structural design and technological design are combined the piece bearing mandrel of founding a new model, are imperative and the task of top priority.

Summary of the invention

According to background technique, the purpose of this utility model is to provide a kind of high-quality standard rolling bearing of selecting for use, adopts the piece bearing mandrel of suit running in bearings and locating piece location, and the piece bearing mandrel of this new structure form satisfies the operation technique requirement of piece bearing mandrel fully, such as the piece bearing mandrel of new model on function, on the installation dimension with to commonly use structure identical, the operational effect unanimity, locating piece can adopt bonding, hot charging, pin, jackscrew, modes such as screw thread are fixed.

To achieve these goals, the utility model is achieved through the following technical solutions:

A kind of piece bearing mandrel, mainly by mandrel (1), locating piece (2) and standard rolling bearing (3) are formed, wherein: standard rolling bearing (3) can be sleeved on the mandrel (1) by mandrel (1) left end or right-hand member, what again cylindrical shape locating piece (2) is sleeved on mandrel (1) is on the fixed position, and fixing with fixing nail (21).

Owing to adopted technique scheme, the utlity model has following advantage and effect:

1, the utility model has adopted the design philosophy of suitable China's actual conditions, designed with to commonly use structural type different, but the function new structure the same with using effect has reduced cost of production, has solved the difficult problem of key member production domesticization.

2, working service of the present utility model is repaired characteristic and is higher than and commonly uses structure.

Description of drawings

Fig. 1 is a schematic representation of commonly using piece bearing mandrel structure

Fig. 2 is the schematic representation of the utility model general structure

Embodiment

Illustrated by Fig. 2, a kind of piece bearing mandrel is mainly by mandrel 1, locating piece 2 and standard rolling bearing 3 are formed, wherein: standard rolling bearing 3 can be sleeved on the mandrel 1 by mandrel 1 left end or right-hand member, and what again cylindrical shape locating piece 2 is sleeved on mandrel 1 is on the fixed position, and fixing with fixing nail 21.

Other knows that the fixed form of locating piece 2 on mandrel 1 can adopt bonding, welding, and hot charging, pin, jackscrew, modes such as screw thread are fixed.

Claims

1, a kind of piece bearing mandrel, mainly by mandrel (1), locating piece (2) and standard rolling bearing (3) are formed, it is characterized in that: standard rolling bearing (3) can be sleeved on the mandrel (1) by mandrel (1) left end or right-hand member, what again cylindrical shape locating piece (2) is sleeved on mandrel (1) is on the fixed position, and fixing with fixing nail (21).