CN103195928A

CN103195928A - Elastic part

Info

Publication number: CN103195928A
Application number: CN2013101085977A
Authority: CN
Inventors: 丁梦西; 王建卫
Original assignee: SUZHOU HENGYANG PRECISION MACHINERY CO Ltd
Current assignee: SUZHOU HENGYANG PRECISION MACHINERY CO Ltd
Priority date: 2013-04-01
Filing date: 2013-04-01
Publication date: 2013-07-10

Abstract

The invention discloses an elastic part. The base body of the elastic part is integratedly formed by punching, the cross section of the base body is in an arc shape, and soft materials coats around the base body. The elastic part is easy to manufacture and wide in application range; the base body of the elastic part is a strip with a random length, which is formed by punching a board through a punching machine, and the elastic part can be cut, reshaped and made into elastic components with different shapes, lengths or diameters as required during usage; and the elastic components can be matched with other parts or structures to provide elastic forces, thereby being capable of replacing springs, simplifying the structures of mechanical sealing components and reducing the manufacturing cost.

Description

A kind of elastic part

Technical field

The present invention relates to a kind of elastic part, particularly a kind of elastic part for the mechanical seal field.

Background technique

Mechanical seal refers to kept under the effect of hydrodynamic pressure and compensation mechanism elastic force (or magnetic force) and under the cooperation of auxiliary seal fitting and relative slip the and the device that prevents the fluid leakage that constitutes perpendicular to the end face of spin axis by at least one pair of.

Mechanical seal mainly contains following four base parts and forms: the main Sealing of a.: rotating ring and stationary ring; B. secondary seal: seal ring; C. compressing member: spring, throw-out collar; D. driving component: play dustpan seat and key or set screw.Mechanical sealing element when mounted, the installation deviation that a. produces in will paying close attention to and avoiding installing, otherwise can not guarantee follow-up normal mounting and be easy to cause leak; B. amount of spring compression will be carried out in accordance with regulations, and has not allowed excessive or too small phenomenon, and crossing conference increases face pressure and accelerate end wear, and too small meeting causes the specific pressure deficiency and can not play seal action; C. need guarantee to move flexibly on axle after rotating ring (stationary ring) is installed, under resilient force, dynamic and static ring fits tightly.

In sum as can be known, the existing mechanical seal configuration is comparatively complicated, installs and uses comparatively complicatedly, and the installation precision difference then is easy to cause using process to occur leaking, and Sealing is changed when wearing and tearing occurring also comparatively complicated; Spring as compressing member provides impacting force by compressive force, but because spring need have certain length and could satisfy the elastic force needs, thereby the invisible overall dimensions that increases mechanical sealing element, and the spring position is at high viscosity fluid and contain and occur the spring failure situation in the solid particle fluid easily; In addition, owing to complex structure causes the axial dimension of mechanical sealing element bigger, manufacture difficulty is big and cost is high.

Summary of the invention

For solving the problems of the technologies described above, the invention provides a kind of elastic part, to replace the composite structure of spring or stationary ring and secondary seal etc., make and user cost with structure and the reduction of simplifying mechanical sealing element.

For achieving the above object, technological scheme of the present invention is as follows:

A kind of elastic part, its matrix is by the moulding of sheet material integrated punching, and the cross section of described matrix is curved, is coated with flexible material around the described matrix.

Preferably, described flexible material is organic material, inorganic non-metallic material or metal material, and described organic material comprises rubber, silica gel, teflon etc., and described inorganic non-metallic material comprises graphite etc., and described metal material comprises red metal etc.

Preferably, the outside end of described matrix radian is provided with outside boss, and the inside end of described matrix radian is provided with inside boss, and outside described boss is parallel with inside described boss.

Preferably, described matrix cross section is two ends and has the arc of boss and be coated with flexible material all around.

Pass through technique scheme, a kind of elastic part provided by the invention, it is a kind of easy to manufacture, elastic part that using scope is wide, its matrix is the random lengths band that is formed through punch ram by sheet material, as required can severing, shaping during use, be made into the elastomer of different shape and length or diameter, and by providing elastic force with other part or respective outer side edges, can replace spring, simplify the structure of mechanical sealing element and reduce fabricating cost.

Description of drawings

In order to be illustrated more clearly in the technological scheme in the embodiment of the invention, the accompanying drawing of required use is done to introduce simply in will describing embodiment below.

The elastic component plan structure schematic representation that Fig. 1 is made for the disclosed a kind of elastic part of the embodiment of the invention;

Fig. 2 is the main TV structure schematic representation of Fig. 1;

Fig. 3 be among Fig. 2 A-A to the sectional structure schematic representation;

Fig. 4 has the sectional structure schematic representation of the elastic component of boss structure for the disclosed another kind of the embodiment of the invention;

Fig. 5 has the main TV structure schematic representation of the elastic component of bending for disclosed another two ends of the embodiment of the invention;

Fig. 6 is the side-looking structural representation of Fig. 5.

Numeral among the figure:

11. elastic part 12. matrixes 13. elastic materials

14. boss 15. straight line parts 16. notches

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described.

Referring to figs. 1 to 3, the invention provides a kind of elastic part 11, its matrix 12 is by the plate stamping moulding, and the cross section of matrix 12 is curved, is coated with flexible materials 13 such as rubber, silica gel, teflon, graphite, red metal around the matrix 12.

In addition, can also be provided with outside boss 14 with reference to figure 4 at the outside end of matrix 12 radians, an end inside at matrix 12 radians can also be provided with inside boss 14, outside boss 14 is parallel with inside boss 14, and be coated with flexible materials 13 such as rubber, silica gel, teflon, graphite, red metal all around, make the applying of elastic component two ends and end face to be sealed good by the boss design.

Embodiment 1:

Referring to figs. 1 to 3, with the wire band as required length turn to ring-type, see Fig. 1, joint can weld also can be fixing with other device, this annular resilient part 11 can directly replace spring (curved base 12 parts of flexible materials such as the rubber that the sectional view removal that concrete visible Fig. 3 provides coats, silica gel, teflon, graphite, red metal) along thrust axially is provided when using in the mechanical seal field;

Embodiment 2:

Referring to figs. 1 to 3, the matrix 12 of this annular resilient part 11 can be made skeleton, around this skeleton, be coated with flexible materials 13 such as rubber, silica gel, teflon, graphite, red metal (wherein, the load that need bear when elastic part 11 hour, flexible material adopts organic materials such as rubber, silica gel or teflon to get final product; When the load that need bear when elastic part 11 is big, flexible material then needs to adopt metal materials such as inorganic non-metallic materials such as graphite or red metal), inner ring and axle (axle sleeve) sealing that closely cooperates, the sealing that closely cooperates of outer ring and rotating ring, can directly replace rotating ring, spring and auxiliary seal, also can form same structure replacement stationary ring, spring and auxiliary seal with gland and stationary ring, the benefit of this kind structure is: the labyrinth of a, mechanical seal will be oversimplified; B, the axial size of mechanical seal will shorten; C, mechanical seal manufacture difficulty and cost will reduce.

Embodiment 3:

With reference to figure 5 and 6, with the wire band as required length directly block and make straight line part 15, on band, at interval offer notch 16 as shown in Figure 5 then, make straight line part 15 provide thrust along the normal direction of sheet material, can be used for replacing the spring sheet in the pressurizer.

Multiple modification to above-described embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.

Claims

1. an elastic part is characterized in that, its matrix is by the moulding of sheet material integrated punching, and the cross section of described matrix is curved, is coated with flexible material around the described matrix.

2. a kind of elastic part according to claim 1 is characterized in that, described flexible material is organic material, inorganic non-metallic material or metal material.

3. a kind of elastic part according to claim 2 is characterized in that, the outside end of described matrix radian is provided with outside boss, and the inside end of described matrix radian is provided with inside boss, and outside described boss is parallel with inside described boss.

4. a kind of elastic part according to claim 3 is characterized in that, described matrix cross section is two ends to have the arc of boss and be coated with flexible material all around.

5. a kind of elastic part according to claim 4 is characterized in that, described flexible material is organic material, inorganic non-metallic material or metal material.