CN103089893A - Piston and piston rod connecting structure for automotive dampers - Google Patents

Piston and piston rod connecting structure for automotive dampers Download PDF

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Publication number
CN103089893A
CN103089893A CN2011103388778A CN201110338877A CN103089893A CN 103089893 A CN103089893 A CN 103089893A CN 2011103388778 A CN2011103388778 A CN 2011103388778A CN 201110338877 A CN201110338877 A CN 201110338877A CN 103089893 A CN103089893 A CN 103089893A
Authority
CN
China
Prior art keywords
piston
piston rod
nut
valve seat
contacts
Prior art date
Application number
CN2011103388778A
Other languages
Chinese (zh)
Inventor
徐永尧
Original Assignee
成都红美金属制品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 成都红美金属制品有限公司 filed Critical 成都红美金属制品有限公司
Priority to CN2011103388778A priority Critical patent/CN103089893A/en
Publication of CN103089893A publication Critical patent/CN103089893A/en

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Abstract

The invention discloses a piston and piston rod connecting structure for automotive dampers. The piston and piston rod connecting structure comprises a piston rod (1), a piston (2), a valve seat (3) and a nut. One end of the piston rod (1) is provided with an outer thread matched with an inner thread of the nut (4). The nut (4) is sleeved at a threaded end of the piston rod (1). Both the piston (2) and the valve seat (3) are sleeved on the piston rod (1). The valve seat (3) and the piston rod (1) are in interference fit, and the piston (2) is arranged between the valve seat (3) and the nut (4). The piston and piston rod connecting structure is integrally simple and easy to realize, and is capable of fastening connection between the piston (2) and the piston rod (1) so that the piston can be prevented from falling off the piston rod in case of severe vibration of the dampers.

Description

Be used for the linkage structure between vehicle shock absorber piston and piston rod

Technical field

The present invention relates to the vibration damper of automobile, specifically be used for the linkage structure between vehicle shock absorber piston and piston rod.

Background technique

Along with the development of society, people are more and more higher to performance requirements such as the power character of automobile, Economy, braking, control stability, smoothnesss.In order to accelerate the decay of automobile vibration, improve the smoothness of automobile running, mounting dampers seems still for necessary in automobile.Vibration damper is mounted in a damping member between car body and road wheel, its effect is the vibration of decay car body and the unlimited increase that stops resonance situation lower body amplitude, vibration damper can reduce amplitude and the vibration number of body oscillating, thereby can extend the fatigue life of elastic element and improve the travelling comfort that the personnel of riding ride.Vibration damper is when work, vibration when it is mainly used to suppress bounce-back after the spring absorbing and from the impact on road surface, through uneven road surface the time, although vibration absorbing spring can be filtered the vibration on road surface, but spring self also has to-and-fro motion, and vibration damper is exactly the jump that suppresses vibration absorbing spring.

Piston and piston rod are as the vitals in vibration damper, and they play an important role in the vibration damping process, and whether piston and piston rod no-float, and can this relation vibration damper and be worked.Yet existing vibration damper generally just is located at piston sleeve the connection of carrying out on piston rod between the two, and the fixing device that does not adopt other to assist, when the vibration damper Oscillation Amplitude is large, comes off on the easy piston rod of piston, thereby make vibration damper lose vibration-damping function.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, provide being connected between the fastening piston of a kind of energy and piston rod, thereby when avoiding the vibration damper Oscillation Amplitude large, piston is used for linkage structure between vehicle shock absorber piston and piston rod from what piston rod came off.

Purpose of the present invention is achieved through the following technical solutions: be used for the linkage structure between vehicle shock absorber piston and piston rod, comprise piston rod, piston, valve seat and nut, described piston rod one end is provided with the outside thread with the nut inner thread coupling, described nut sleeve is located at the threaded end of piston rod, described piston and valve seat all are set on piston rod, and form interference fit between valve seat and piston rod, piston is between valve seat and nut.

Described upper cover of piston rod is provided with star spring valve plate and circulation valve block, and described star spring valve plate opposite end surface contacts with valve seat and circulation valve block respectively, and described circulation valve block the connect other end of tactile star spring sheet end face contacts with piston.The present invention arranges the ocsillator strenght between star spring sheet available buffer piston and valve seat, avoids causing piston or valve seat damage because of hard collision.When the present invention is arranged in the clutch release slave cylinder of vibration damper, the circulation valve block be convenient to the clutch release slave cylinder inner fluid with piston in circulate.

Described upper cover of piston rod is provided with throttle valve plate, baffle plate and pad, and described throttle valve plate contacts with piston, and pad contacts with nut, and the opposite end surface of described baffle plate contacts with pad with throttle valve plate respectively.The purpose that this practicality arranges throttle valve plate be for the fluid that limits the piston of flowing through too much, the purpose that baffle plate is set is in order to separate throttle valve plate and pad, when avoiding the present invention to vibrate, the throttle valve plate opposite end surface is all stressed excessive and damage, the purpose that pad is set is for the rigid connection between cushioning fender and nut, thereby avoids baffle plate to damage.

Compared with prior art, the present invention has the following advantages: the present invention includes piston rod, piston, valve seat and nut, piston rod is provided with threaded end, nut sleeve is located at the threaded end of piston rod, valve seat and piston all are set on piston rod, and piston is between valve seat and nut, and valve seat and nut can carry out spacing to piston, the linkage structure that nut and valve seat are fastening between piston and piston rod, thus when avoiding the vibration damper Oscillation Amplitude large, piston comes off from piston rod.

Description of drawings

Fig. 1 is the decomposition texture schematic diagram of the embodiment of the present invention.

In accompanying drawing, the corresponding name of reference character is called: 1, piston rod, 2, piston, 3, valve seat, 4, nut, 5, the star compression spring, 6, the circulation valve block, 7, throttle valve plate, 8, baffle plate, 9, pad, 10, stop collar, 11, cushion collar.

Embodiment

The present invention is described in further detail below in conjunction with embodiment and accompanying drawing, but embodiments of the present invention are not limited to this.

Embodiment:

As shown in Figure 1, be used for the linkage structure between vehicle shock absorber piston and piston rod, comprise piston rod 1, piston 2, valve seat 3, nut 4, star spring valve plate 5, circulation valve block 6, throttle valve plate 7, baffle plate 8 and pad 9, piston rod 1 one ends are provided with the outside thread with nut 4 internal thread couplings, nut 4 is set in the threaded end of piston rod 1, valve seat 3 be set on piston rod 1 and and piston rod 1 between form interference fit, piston 2 is set on piston rod 1 and between valve seat 3 and nut 4.Star spring valve plate 5 and circulation valve block 6 all are set on piston rod 1, and star spring valve plate 5 opposite end surfaces contact with circulation valve block 6 with valve seat 3 respectively, and circulation valve block 6 other end of contact star spring sheet 5 end faces relatively contacts with piston 2.Throttle valve plate 7, baffle plate 8 and pad 9 all are set on piston rod 1, throttle valve plate 7 one end faces contact with piston 2, pad 9 one end faces contact with nut 4, the opposite end surface of baffle plate 8 contacts with pad 9 with throttle valve plate 7 respectively, be that throttle valve plate 7, baffle plate 8 and pad 9 are arranged between piston 2 and nut 4, and 4 set gradually from piston 2 to nut.Star spring valve plate 5, circulation valve block 6, throttle valve plate 7 and pad 9 are made by rubber, and baffle plate 8 is made by plastic cement.

Also be arranged with stop collar 10 and cushion collar 11 on piston rod 1, stop collar 10 and cushion collar 11 all form interference fit with piston rod 1, the present embodiment is when using, stop collar 10 is arranged on the upper end of valve seat 3, cushion collar 11 is arranged on the upper end of stop collar 10, and when stop collar 10 and cushion collar 11 can avoid valve seat 3 to come off, larger displacement appears in valve seat 3 and piston 2 on piston rod 1.

As mentioned above, can well realize the present invention.

Claims (3)

1. be used for the linkage structure between vehicle shock absorber piston and piston rod, it is characterized in that: comprise piston rod (1), piston (2), valve seat (3) and nut (4), described piston rod (1) one end is provided with the outside thread with nut (4) internal thread coupling, described nut (4) is set in the threaded end of piston rod (1), described piston (2) and valve seat (3) all are set on piston rod (1), and form interference fit between valve seat (3) and piston rod (1), piston (2) is positioned between valve seat (3) and nut (4).
2. according to claim 1 for the linkage structure between vehicle shock absorber piston and piston rod, it is characterized in that: be arranged with star spring valve plate (5) and circulation valve block (6) on described piston rod (1), described star spring valve plate (5) opposite end surface contacts with circulation valve block (6) with valve seat (3) respectively, and the other end that described circulation valve block (6) contacts star spring sheet (5) end face relatively contacts with piston (2).
3. according to claim 1 and 2 for the linkage structure between vehicle shock absorber piston and piston rod, it is characterized in that: be arranged with throttle valve plate (7), baffle plate (8) and pad (9) on described piston rod (1), described throttle valve plate (7) contacts with piston (2), pad (9) contacts with nut (4), and the opposite end surface of described baffle plate (8) contacts with pad (9) with throttle valve plate (7) respectively.
CN2011103388778A 2011-11-01 2011-11-01 Piston and piston rod connecting structure for automotive dampers CN103089893A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103388778A CN103089893A (en) 2011-11-01 2011-11-01 Piston and piston rod connecting structure for automotive dampers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103388778A CN103089893A (en) 2011-11-01 2011-11-01 Piston and piston rod connecting structure for automotive dampers

Publications (1)

Publication Number Publication Date
CN103089893A true CN103089893A (en) 2013-05-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103388778A CN103089893A (en) 2011-11-01 2011-11-01 Piston and piston rod connecting structure for automotive dampers

Country Status (1)

Country Link
CN (1) CN103089893A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2859080Y (en) * 2005-12-31 2007-01-17 南阳金冠汽车减振器有限公司 Hydraulic vibration damper restoration damp valve
CN101162034A (en) * 2007-11-27 2008-04-16 重庆长安汽车股份有限公司 Automobile shock absorber
US20090120749A1 (en) * 2007-11-14 2009-05-14 Thyssenkrupp Bilstein Suspension Gmbh Vibration damper and method for the production of a three-pipe system for a vibration damper
CN202007854U (en) * 2011-05-09 2011-10-12 重庆协成毕扬减振器有限公司 Valve-piece-only type piston valve for automobile shock absorber
CN202301711U (en) * 2011-11-01 2012-07-04 成都红美金属制品有限公司 Connecting structure between piston and piston rod in automobile damper

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2859080Y (en) * 2005-12-31 2007-01-17 南阳金冠汽车减振器有限公司 Hydraulic vibration damper restoration damp valve
US20090120749A1 (en) * 2007-11-14 2009-05-14 Thyssenkrupp Bilstein Suspension Gmbh Vibration damper and method for the production of a three-pipe system for a vibration damper
CN101162034A (en) * 2007-11-27 2008-04-16 重庆长安汽车股份有限公司 Automobile shock absorber
CN202007854U (en) * 2011-05-09 2011-10-12 重庆协成毕扬减振器有限公司 Valve-piece-only type piston valve for automobile shock absorber
CN202301711U (en) * 2011-11-01 2012-07-04 成都红美金属制品有限公司 Connecting structure between piston and piston rod in automobile damper

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Application publication date: 20130508

C12 Rejection of a patent application after its publication