CN1779041A

CN1779041A - Friction damper

Info

Publication number: CN1779041A
Application number: CNA2005100809182A
Authority: CN
Inventors: 阿迪尔·坎尼奥兹
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-11-25
Filing date: 2005-06-24
Publication date: 2006-05-31
Anticipated expiration: 2025-06-24
Also published as: CN1779041B; KR101166295B1; TR200403202A2; KR20060058757A

Abstract

The invention relates to a friction damper, especially for drum washer with level face. In the friction damper for achieving the invention object, elastic projections are formed for preventing piston noise generated by piston knocking surroundings. Further, the invention changes the design of fin which constitutes air discharge passages and holes within body to resolve thermal conduction problem. Besides, the locking of friction element can be ensured by four projections but not two.

Description

Friction damper

Technical field

The present invention relates to a kind of friction damper, it is used in particular for having the drum wash machine of horizontal plane.

Background technology

Known, the cylinder in the rinsing maching keeps balances by superposed two suspension springs and two friction dampers that are positioned at the bottom, and the clothes that wash is contained in the described cylinder.These dampers are arranged with 30 ° of angles with respect to vertical axis.

Friction damper well known in the prior art is formed by cylinder-shaped body with at this body interior movable axie usually.This a end is protruding by being embedded into from an end of main body, and at least one piston appears at the other end.Friction element occurs, it is compressed between the inner surface of this piston and main body.

The damper of these types is by frictional force work, and described frictional force appears between the friction element and main body on the piston.The weight of these damper antagonism water and the clothes that will wash is also by avoiding the unbalanced motion of cylinder to suppress vibration.

In the known embodiment of prior art, European patent application EP 0 686 729 B1 disclose a kind of damper that comprises piston, and described piston moves between two springs at shaft end.

U.S. Patent application US 4,768,629 discloses a kind of damper, wherein uses progressive partial fixing spring.U.S. Patent application US 4,955,467 discloses a kind of damper, and its medi-spring is not fixed on the axle.

German patent application DE3216152 discloses a kind of damper, because be fixed on the inclination of the piston cup on the axle, it moves around in body interior.Piston herein comprises a plurality of parts, and it is actuated by various mechanisms.

But, use aforesaid mechanism noise level fully can not be reduced.

And damper well known in the prior art has lower useful life.

Except these, the manufacturing expense of known damper is higher.

Summary of the invention

The objective of the invention is to realize a kind of friction damper, it is easy to make, and has lower production cost, and is quiet more during operation.

In the friction damper of realizing in order to reach the object of the invention, guarantee locking by 4 ledges.And, changed the design of fin, set up air discharging channel and hole in body interior, so that solve heat conduction problem.Except these, in three-dimensional, form the noise of ledge piston of generation when preventing around the piston slap.

Description of drawings

The friction damper of realizing in order to reach the object of the invention is set forth in the accompanying drawings, wherein:

Fig. 1 is the perspective view of damper.

Fig. 2 is the axial cutaway view of damper.

Fig. 3 is the side view of damper.

Fig. 4 is the cutaway view of damper.

Fig. 5 is the cutaway view of damper lock portion.

The specific embodiment

Each is all put on Reference numeral parts among the figure, and is as follows:

1, friction damper

2, main body

3, piston

4, friction element

5, lock portion

6, latch

7, fin

8, passage

9, air vent

10, ledge

The friction damper 1 of invention consists essentially of,

Main body 2,

Piston 3, it moves around in this body interior,

Friction element 4, it is compressed between the inner surface of this piston and this main body.

Main body 2 is the tubulose of hollow.Piston 3 is such parts: it moves along the axis X stretchably identical with main body 2, and it is embedded into body interior as follows: the one end externally, the other end is in body interior.Main body 2 is connected to damper 1 axis from the vertical axis end relative with tub for washing machine and main body with piston 3.

In the damper 1 of invention, passage 8 is based upon in the shape of cross section of main body, by outside expansion, extends along the direction of the X that parallels to the axis in body interior.These passages 8 are four parts preferably.Adopt this mode, in the course of work of damper, form the path, flow because of the body interior heated air that rubs so that guarantee.

The point place of air vent 9 on main body is perforated, and described point correspondingly crosses passage, discharges easily by the heated air of passage guaranteeing.These holes 9 that should note beating in the bottom and main body 2 tops are as many.Adopt this mode, guarantee and can discharge hot-air from the bottom, discharge and needn't wait from top, piston 3 moves to top in main body 2 inside from the bottom simultaneously.Discharging efficient by the air of this design agents inner passage 8 obtains increasing.

Except these, the rectangle fin is formed in the damper of invention, is positioned at the outer surface corresponding to the location main body 2 of crossing friction element 4, so that solve the heating problems of damper.Be different from prior art, the width of these fins reduces, and is lowered to and mostly is 1mm most.And the distance between the fin is broadened, and increased at least 4, and 5mm is so that provide the air flow of sufficient amount.

Except these, the visible constraint that causes because of irregular load in the main body 2 inner processes that move at piston 3 takes place.These constraints cause the inner surface of piston 3 bump main bodys, thereby make a noise.In the damper of invention, ledge 10 is formed on the interior surface of main body, so that suppress these bumps, reduces noise level.These ledges 10 are very thin and flexible.Their thickness on main wall top is 0,7mm.It is possible that these ledges 10 extend to the other end in body inner surface inside from an end.

And, they be parallel to main body axis, with respect to main body axis be flat, to have helical form be possible.Because these ledges 10 are very thin and flexible, they move with respect to the vertical of central axis X by eliminating piston 2, prevent the formation of main body 1 inner any noise.

Friction element 4 is fixed on the piston outside, with the inner surface of contact main body 2.The frictional force that suppresses vibration is provided by this friction element 4.

In the course of work of damper, lock portion 5 remains on its position so that guarantee friction element 4 in better mode around the bottom of main body is installed in piston.In the damper of invention, four latches 6 are connected to lock portion 5, so that strengthen its effect.

Industrial applicibility

The moving process Zhong of Yan X-axis Xian direction Zhen, piston Zai body interior take place in Zai rinsing maching cylinder Yan X-axis Xian telescopically and is moved around. The friction element that surrounds piston is by the Zhu body that nuzzles up Inner surface guarantees that noiselessness ground this Yi of Yi Zhi is moving.

Moving from the Zhen of X-axis Xian direction for cylinder Yan Yuan, the ledge 10 at Zhu body inner surface place Get involved help, they stretch, and not only Yi Zhen processed is moving, and prevents any possible Zao Yin.

Except these, therefore the passage of foundation, air vent and thinner and leave fin at interval and guarantee that damper better cools off increase its useful life.

Because its simple structure, the easier manufacturing of the damper of invention is more economical aspect work materials and time.

Claims

1. a friction damper (1), it is used in particular for rinsing maching, comprising:

Hollow tubular body (2),

Piston (3), it moves around in this body interior, this piston is embedded into body interior as follows: the one end externally, the other end is in body interior,

Friction element (4), it is compressed between the inner surface of this piston and main body;

It is characterized in that,

At least one passage (8), it is by outwards expansion, is parallel to the axis (X) that body interior forms in the cross-section of main body and extends, and flows because of the body interior heated air that rubs guaranteeing in the course of work.

2. friction damper as claimed in claim 1 (1) is characterized in that, air vent (9) such some place on main body is perforated, and described point correspondingly crosses passage, discharges easily by the heated air of passage (8) guaranteeing.

3. as claim 1 and 2 described friction dampers (1), it is characterized in that air vent (9) appears at the top and the bottom of main body (2).

4. each described friction damper (1) in the claim as described above is characterized in that, rectangle fin (7) appears at the outer surface of the main body (2) that is positioned at corresponding location of crossing friction element (4).

5. friction damper as claimed in claim 4 (1) is characterized in that, the thickness of fin (7) is 1mm to the maximum.

6. as claim 1 and 2 described friction dampers (1), it is characterized in that fin (7) has 4 each other at least, the distance of 5mm.

7. each described friction damper (1) in the claim as described above is characterized in that very thin and resilient ledge (10) appears at the interior surface of main body.

8. friction damper as claimed in claim 7 (1) is characterized in that, the thickness of ledge (10) on main wall is 0,7mm.

9. as claim 7 and 8 described friction dampers (1), it is characterized in that ledge (10) extends to the other end in body inner surface inside from an end.

10. as the described friction damper of claim 7,8 and 9 (1), it is characterized in that ledge (10) is flat with respect to main body axis, and is parallel to main body axis.

11., it is characterized in that spiral ledge (10) as the described friction damper of claim 7,8 and 9 (1).

12. each described friction damper (1) in the claim as described above, it is characterized in that, lock portion (5) is around the bottom of main body is installed in piston, remain on its position so that guarantee friction element (4) in better mode, preferably four latches (6) appear on the outer surface of this lock portion (5).