CN104438484A

CN104438484A - Forming device for two-end-fixed type foil of radial elastic foil bearing

Info

Publication number: CN104438484A
Application number: CN201410705866.2A
Authority: CN
Inventors: 孙岩桦; 程文杰; 贾修建; 刘中华; 虞烈
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2014-11-27
Filing date: 2014-11-27
Publication date: 2015-03-25
Anticipated expiration: 2034-11-27
Also published as: CN104438484B

Abstract

A forming device for two-end-fixed type foil of a radial elastic foil bearing comprises two forming blocks, the foil is clamped between the two forming blocks, the two forming blocks are connected through two positioning pre-tightening staple bolts and four bolt sets, and one or more other forming blocks the same as the forming block in structure are connected to one forming block. According to the foil forming technology, the first forming block, the second forming block and the foil are fixedly clamped through forming block through holes with the four bolt sets, then the whole device is put into a vacuum furnace to be heated and treated, and then manufacturing of the foil is completed; the other forming blocks the same as the forming block in structure can be connected to the second forming block, and namely a plurality of pieces of foil can be formed. The device has the advantages of being easy to manufacture, low in machining cost and convenient to operate and can press the great deal of foil, and the forming technology is simple.

Description

A kind of two ends fixed radial elastic foil bearing paillon foil shaped device

Technical field

The invention belongs to elastic foil bearing technical field, be specifically related to the shaped device of a kind of two ends fixed radial elastic foil bearing top foil.

Background technology

Elastic foil bearing is applicable to the support without oil, high speed or ultrahigh speed rotating machinery.For radial elastic foil bearing, when it adopts one end to fix, when one end assembles mode freely, the assembling of paillon foil will be beneficial to.But a problem can be caused again: rotor is easy after rotation to be rubbed out from stiff end by paillon foil, makes bearing failure.A kind of solution is preferably: paillon foil adopts two ends fixed form, and namely the two ends of paillon foil are all stuck in bearing holder (housing, cover), to avoid the problems referred to above.When adopting two ends fixed form, paillon foil needs shaping in advance, to mate with the internal diameter of bearing holder (housing, cover), makes easy to assembly.Because foil material resilience is good, and local is easy to plastic deformation occurs, and does not also have the shaped device of the fixed elastic foil bearing top foil in two ends at present.

Summary of the invention

The features such as in order to overcome the shortcoming of above-mentioned prior art, the object of the present invention is to provide the shaped device of a kind of two ends fixed radial elastic foil bearing top foil, have and manufacture simply, processing cost is low, and easy to operate and compacting paillon foil quantity is more.

To achieve these goals, the technical solution used in the present invention is:

The shaped device of the fixed elastic foil bearing top foil in a kind of two ends, comprise the first forming blocks 1 and the second forming blocks 2, paillon foil 5 is clipped between the first forming blocks 1 and the second forming blocks 2, and the first forming blocks 1 is connected with four groups of bolt groups 4 by two location pretension bails 3 with the second forming blocks 2.

The first described forming blocks 1 and the second forming blocks 2 are provided with the circular arc 7 of identical radian measure, circular arc 7 one end is the tip flutes 8 of radius 0.12mm, the other end is level and smooth, paillon foil 5 is placed in tip flutes 8, first forming blocks 1 and the middle groove 9 having height 2mm of the second forming blocks 2 both ends of the surface, pretension bail 3 is connected in groove 9, first forming blocks 1 and the second forming blocks 2 planar section have four symmetrical through holes 10, first forming blocks 1 and the second forming blocks 2 are linked together by through hole 10 by four groups of bolt groups 4, the material that first forming blocks 1 and the second forming blocks 2 use is exotic material, processing temperature reaches more than 1300 DEG C.

Described pretension bail 3 is U-shaped structure, and thickness is 1.5 ~ 2mm, and length is less than the half of the first forming blocks 1, second forming blocks 2 width, and material therefor is exotic material.

The second described forming blocks 2 is also connected with other identical forming blocks of more than one structure.

The paillon foil moulding process of described shaped device, comprises the following steps:

The first step, is placed on the upper surface of the first forming blocks 1 by planar sheets 5 to be formed, be adjacent in the tip flutes 8 of the first forming blocks 1, freely place on the right side of paillon foil 5 on the left of paillon foil 5, and the second forming blocks 2 vertically moves down;

Second step, after the second forming blocks 2 contacts with paillon foil 5, continues to move down, and the right-hand member of paillon foil 5 can tilt, and now withstands paillon foil 5 with a thin long slab 6, prevents paillon foil 5 from skidding off from right side;

3rd step, when the first forming blocks 1 and the second forming blocks 2 are adjacent to, their left and right sides are diagonally clamped on two pretension bails 3 in the groove 9 of the first forming blocks 1 and the second forming blocks 2 respectively, prevent paillon foil resilience;

4th step, first forming blocks 1, second forming blocks 2 and paillon foil 5 are fixedly clamped by forming blocks through hole 10 by four groups of bolt groups 4, afterwards package unit is put into vacuum drying oven to carry out heating the making namely completing paillon foil, can also identical other forming blocks of syndeton in the second forming blocks 2, namely can complete the shaping making of multi-disc paillon foil.

The features such as advantage of the present invention is: it is simple that device has manufacture, and processing cost is low, and easy to operate and compacting paillon foil quantity is more, moulding process is simple.

Accompanying drawing explanation

Fig. 1 is the main sectional view of apparatus of the present invention.

Fig. 2 is the schematic diagram that paillon foil 5 starts when being out of shape.

Fig. 3 is the top view of the first forming blocks 1 or the second forming blocks 2.

Fig. 4 is the enlarged drawing of tip flutes 8.

Detailed description of the invention

Below in conjunction with accompanying drawing, the present invention is described in detail.

With reference to Fig. 1, Fig. 2 and Fig. 3, the shaped device of the fixed elastic foil bearing top foil in a kind of two ends, comprise the first forming blocks 1 and the second forming blocks 2, paillon foil 5 is clipped between the first forming blocks 1 and the second forming blocks 2, and the first forming blocks 1 is connected with four groups of bolt groups 4 by two location pretension bails 3 with the second forming blocks 2.

With reference to Fig. 2, Fig. 3 and Fig. 4, the first described forming blocks 1 and the second forming blocks 2 are provided with the circular arc 7 of identical radian measure, circular arc 7 one end is the tip flutes 8 of radius 0.12mm, the other end is level and smooth, paillon foil 5 is placed in tip flutes 8, first forming blocks 1 and the middle groove 9 having height 2mm of the second forming blocks 2 both ends of the surface, pretension bail 3 is connected in groove 9, first forming blocks 1 and the second forming blocks 2 planar section have four symmetrical through holes 10, first forming blocks 1 and the second forming blocks 2 are linked together by through hole 10 by four groups of bolt groups 4, the material that first forming blocks 1 and the second forming blocks 2 use is exotic material, processing temperature reaches more than 1300 DEG C.

4th step, first forming blocks 1, second forming blocks 2 and paillon foil 5 are fixedly clamped by forming blocks through hole by four groups of bolt groups 4, afterwards package unit is put into vacuum drying oven to carry out heating the making namely completing paillon foil, can also identical other forming blocks of syndeton in the second forming blocks 2, namely can complete the shaping making of multi-disc paillon foil.

Claims

1. the shaped device of the fixed elastic foil bearing top foil in two ends, comprise the first forming blocks (1) and the second forming blocks (2), it is characterized in that: paillon foil (5) is clipped between the first forming blocks (1) and the second forming blocks (2), the first forming blocks (1) is connected with four groups of bolt groups (4) by two location pretension bail (3) with the second forming blocks (2).

2. the shaped device of the fixed elastic foil bearing top foil in a kind of two ends according to claim 1, it is characterized in that: described the first forming blocks (1) and the second forming blocks (2) are provided with the circular arc (7) of identical radian measure, circular arc (7) one end is the tip flutes (8) of radius 0.12mm, the other end is level and smooth, paillon foil 5 is placed in tip flutes (8), first forming blocks (1) and the middle groove (9) having height 2mm of the second forming blocks (2) both ends of the surface, pretension bail (3) is connected in groove (9), first forming blocks (1) and the second forming blocks (2) planar section have four symmetrical through holes (10), first forming blocks (1) and the second forming blocks (2) are linked together by through hole (10) by four groups of bolt groups (4), the material that first forming blocks (1) and the second forming blocks (2) use is exotic material, processing temperature reaches more than 1300 DEG C.

3. the shaped device of the fixed elastic foil bearing top foil in a kind of two ends according to claim 1, it is characterized in that: described pretension bail (3) is U-shaped structure, thickness is 1.5 ~ 2mm, length is less than the half of the first forming blocks (1), the second forming blocks (2) width, and material therefor is exotic material.

4. the shaped device of the fixed elastic foil bearing top foil in a kind of two ends according to claim 1, is characterized in that: described the second forming blocks (2) is also connected with other identical forming blocks of more than one structure.

5. the paillon foil moulding process of shaped device according to claim 1, is characterized in that: comprise the following steps:

The first step, planar sheets (5) to be formed is placed on the upper surface of the first forming blocks (1), paillon foil (5) left side is adjacent in the tip flutes (8) of the first forming blocks (1), paillon foil (5) right side is freely placed, and the second forming blocks (2) vertically moves down;

Second step, second forming blocks (2) continues to move down after contacting with paillon foil (5), and the right-hand member of paillon foil (5) can tilt, now use a thin long slab (6) to withstand paillon foil (5), prevent paillon foil (5) from skidding off from right side;

3rd step, when the first forming blocks (1) is adjacent to the second forming blocks (2), their left and right sides use two pretension bails (3) to be diagonally clamped on the first forming blocks (1) with the groove (9) of the second forming blocks (2) respectively, prevent paillon foil resilience;

4th step, first forming blocks (1), the second forming blocks (2) and paillon foil (5) are fixedly clamped by forming blocks through hole with four groups of bolt groups (4), afterwards package unit is put into vacuum drying oven to carry out heating the making namely completing paillon foil, can also identical other forming blocks of syndeton in the second forming blocks (2), namely can complete the shaping making of multi-disc paillon foil.