CN201351708Y

CN201351708Y - Shock absorber with ball head structure

Info

Publication number: CN201351708Y
Application number: CNU2008201709886U
Authority: CN
Inventors: 柳平波
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-25
Filing date: 2008-12-25
Publication date: 2009-11-25
Anticipated expiration: 2018-12-25

Abstract

The utility model relates to a shock absorber with a ball head structure. The shock absorber comprises a link rod, a guider subassembly, an oil storage cylinder subassembly, a working cylinder, a retainer ring, a piston subassembly and a bottom valve subassembly; wherein, the guider subassembly consists of a guider, an oil seal and a guide bush; the oil storage cylinder subassembly consists of an oil storage cylinder, a bottom cover positioned on the lower end of the oil storage cylinder and a ball head-jointing seat; the shock absorber also comprises a threaded base, a rubber dust shield subassembly and a ball head subassembly; wherein, the rubber dust shield subassembly consists of an upper collar, a rubber dust shield and a lower collar which are assembled together; the ball head subassembly consists of a ball head, a locking steel ring and a plastic ball seat which are assembled together; the guider subassembly is spliced with the upper end of the working cylinder through the oil storage cylinder and sleeved on the upper end of the link rod; the guider subassembly consists of the oil seal, the guider and the guide bush which are assembled together, the oil seal which is used to seal oil on the side is arranged on the upper side of the guider, and the guider is supportively assembled with the link rod and the working cylinder in order to keep concentric with the oil storage cylinder; and the lower end of the bottom cover is welded with the ball head-jointing seat, which locks the ball head subassembly through the threaded base.

Description

Vibration damper with ball head structure

Technical field

The utility model relates to motor vehicle damper and motor buffer series, is specifically related to a kind of vibration damper with ball head structure; Belong to the critical component in the automotive suspension.

Background technique

Vibration damper is exactly the apparatus that reduces vibrations, the vibration damper major function gives the road surface vehicle body irregular vibrations exactly, damping function by the inner fluid of vibration damper, mechanical energy is converted into heat energy, by the fuel tank shell heat energy is dispersed in the atmosphere, makes vehicle obtain good riding comfort and the stationarity of travelling.Since early thirties comes out from last century, adopt the hydraulic pressure core structure, on basic principle, do not have too big change so far.Technical requirements to vibration damper is the driving comfort that vehicle is improved constantly, and reliability and working life propose.

Along with the fast development of automotive industry, be faced with the independent suspension industrialization problem that becomes increasingly conspicuous.Its a kind of typical structure is the McPherson strut that extensively adopts, and it is combined in the part of carrying elastic element function and wheel guide function in the assembly structure, and its concrete advantage need be guaranteed to realize by strict design precision and technology.But its industrialization process is slow, and there is a big difference with the like product phase specific mass of introducing.Mainly show early stage fatigue resistance difference and power value instability etc.Therefore, independent suspension reverse engineering and the improvement on the reverse technology practical basis and corresponding technology guarantee to become brainstorm subject.

The existing telescopic shock absorber such as the applying date 2004 on June 8,, application number 200410024250 has disclosed " damped type dydraulic shock absorber ", and the inner piece that relates generally to is made up of cylinder body, piston, compression valve, connecting rod, main drainback passage, secondary drainback passage, yielding rubber, damping spring, guider, oil sealing and oil storage chamber.External structure mainly can be divided into by the entrucking mode: tray supporter formula, single-ring formula, two suspension ring formula, two V shape and screw type.All can make the vibration damper folk prescription to stressed after its entrucking, so the lateral force resistance of vibration damper and all being affected working life.

Summary of the invention

Technical problem to be solved in the utility model is the present situation at prior art, a kind of not only compact structure is provided but also can effectively prevents the multidirectional impact of vehicle body to vibration damper, can strengthen the vibration damper with ball head structure in working life.

The utility model solves the problems of the technologies described above the technological scheme that is adopted: have the vibration damper of ball head structure, include connecting rod, guider sub-assembly, fuel tank sub-assembly, clutch release slave cylinder, back-up ring, piston sub-assembly and sub assembly of bottom valve; The guider sub-assembly comprises guider, oil sealing and guide bush; The fuel tank sub-assembly comprises fuel tank, is positioned at the bottom of fuel tank lower end; Wherein: also include threaded base, bellows sub-assembly and bulb sub-assembly; The fuel tank assembly comprises the bulb connecting base that is positioned at the fuel tank lower end;

The bellows sub-assembly includes equipped mutually last collar, bellows and following collar; The bulb sub-assembly includes equipped mutually bulb, locking steel loop and plastics ball seat;

The guider sub-assembly is chimeric and be sleeved on small end through fuel tank and clutch release slave cylinder upper end; It comprises mutually equipped oil sealing, guider and guide bush, the oil sealing that is used for the side oil sealing be located at guider above, guider supports equipped to connecting rod and clutch release slave cylinder, concentric with fuel tank with maintenance; Bottom lower end solder sphere title joint chair, the bulb connecting base is through threaded base locking bulb sub-assembly.

The measure of taking also comprises:

Above-mentioned piston sub-assembly is sleeved on the connecting rod lower end, and it is included in helical spring, the flowing valve valve block that is inlaid in encapsulate piston top and the recovery throttle valve plate that is inlaid in encapsulate piston bottom successively, rebuilt valve valve block, restores pad, rebuilt valve, axle sleeve, return spring and recovery nut.

Above-mentioned compression valve sub-assembly is chimeric fixing through fuel tank and clutch release slave cylinder lower end, and it comprises equipped successively compression valve rod, big pad, compression valve adjustment pad, compression valve block, compression valve throttling sheet, compression valve, recuperation valve valve block, recuperation valve spring and recuperation valve snubber.

Bulb in the above-mentioned bulb assembly of devices is positioned on the plastics ball seat, is added with the ion lubricating grease that plays for the effect of lubricating and increasing the service life of bulb on the plastics ball seat; Locking steel loop and bulb and plastics ball seat fuse and constitute the bulb sub-assembly; The bulb sub-assembly keeps flat into threaded base, and the bulb sub-assembly is compressed in the groove of threaded base upper end with flanger; And put bellows; Two ends are used collar and following collar respectively and are fixed up and down.

Above-mentioned bulb connecting base fixes and locks the bulb sub-assembly through threaded base with screw thread fastening glue.

Compared with prior art, the outside entrucking structure use of the vibration damper of the utility model employing face is more extensive, performance is more superior, versatility is stronger; Be embodied in: the one, replace a plate structure as the entrucking critical piece with ball head structure, solved the problem of the restricted and anti-multidirectional impact force poor performance of entrucking angle; Two are to use the screw thread bulb assembly that is tightened to be connected with vibration damper, and more present support plate welding technique for fixing is simple, assembling and change convenient.

Description of drawings

Fig. 1 is the utility model embodiment's a general assembly broken section structural representation;

Fig. 2 is a bulb parts sectional structure schematic representation among Fig. 1;

Fig. 2 A is a corresponding component decomposition texture schematic representation among Fig. 2;

Fig. 3 is a piston sub-assembly decomposition texture schematic representation among Fig. 1;

Fig. 4 is a compression valve sub-assembly decomposition texture schematic representation among Fig. 1.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As shown in Figures 1 to 4, have the vibration damper of ball head structure, include connecting rod 1, guider sub-assembly 2, fuel tank sub-assembly 3, clutch release slave cylinder 4, back-up ring 5, piston sub-assembly 12 and sub assembly of bottom valve 13; Guider sub-assembly 2 comprises guider 2a, oil sealing 10 and guide bush 11; Fuel tank sub-assembly 3 comprises fuel tank 3a, is positioned at the bottom 14 of fuel tank 3a lower end; Also include threaded base 7, bellows sub-assembly 8 and bulb sub-assembly 9; The fuel tank assembly comprises the bulb connecting base 6 that is positioned at fuel tank 3a lower end;

Bellows sub-assembly 8 includes equipped mutually last collar 15, bellows 16 and following collar 17; Bulb sub-assembly 9 includes equipped mutually bulb 18, locking steel loop 19 and plastics ball seat 20;

Guider sub-assembly 2 is chimeric and be sleeved on connecting rod 1 upper end through fuel tank 3a and clutch release slave cylinder 4 upper ends; It comprises mutually equipped oil sealing 10, guider 2a and guide bush 11, the oil sealing 10 that is used for the side oil sealing be located at guider 2a above, guider 2a supports equipped to connecting rod 1 and clutch release slave cylinder 4, to keep concentric with fuel tank 3a; Guider 2a mainly plays the effect that guiding supports, and is beneficial to connecting rod 1, clutch release slave cylinder 4 keeps concentric with fuel tank 3a, and can alleviate the lateral force in the external world.Because connecting rod 1 is crossed use Cheng Zhonghui in entrucking and done irregular to-and-fro motion, therefore in guider 2a, place guide liner 11 to reach the purpose of reducing friction and reducing noise.Oil sealing 10 can prevent the leakage of oil/gas, simultaneously connecting rod 1 is also played the certain protection effect.During assembling, earlier guide liner 11 is pressed into guider 2a, again guider 2a is inserted in connecting rod 1 and compresses, with special guide pin bushing oil sealing is pressed into guider 2a again with clutch release slave cylinder 4; With special-purpose flanger product is sealed at last.Bottom 14 lower end solder sphere title joint chairs 6, bulb connecting base 6 is through threaded base 7 locking bulb sub-assemblys 9.Preferred embodiments is that bulb sub-assembly 9 is fixed and locked to bulb connecting base 6 through threaded base 7 usefulness screw thread fastening glues.

Piston sub-assembly 12 is sleeved on connecting rod 1 lower end, and it is included in helical spring 22, the flowing valve valve block 23 that is inlaid in encapsulate piston 24 tops and the recovery throttle valve plate 25 that is inlaid in encapsulate piston 24 bottoms successively, rebuilt valve valve block 26, restores pad 27, rebuilt valve 28, axle sleeve 29, return spring 30 and restores nut 31.

The to-and-fro motion of piston sub-assembly parts 12 in clutch release slave cylinder 4 is the source of recuperability.Mounting type: earlier helical spring 22 is placed on connecting rod 1 piston end root, the normally used helical spring employing 65Mn of system hot rolled strip highi degree of accuracy stamping-out forms, and pretightening force is more stable, and has prolonged working life.Put into flowing valve valve block 23 again, put into piston body 24 afterwards, pack into successively then and restore throttle valve plate 25, rebuilt valve valve block 26, recovery pad 27, rebuilt valve 28, axle sleeve 29, return spring 30 and restore nut 31; The material diameter size and the height of return spring 30 are adjusted according to the power value of product needed, and will restore nut 31 lockings with the torque spanner by the fixedly torque of testing gained.

Compression valve sub-assembly 13 is chimeric fixing through fuel tank 3a and clutch release slave cylinder 4 lower ends, and it comprises equipped successively compression valve rod 40, big pad 39, compression valve adjustment pad 38, compression valve block 37, compression valve throttling sheet 36, compression valve 35, recuperation valve valve block 34, recuperation valve spring 33 and recuperation valve snubber 32.

Compression valve sub-assembly 13 is main sources of compressive force, plays the effect of oil circuit compensation simultaneously.Make piston 12 that sufficient fluid all be arranged during to-and-fro motion in clutch release slave cylinder 4, guaranteed the continuity of power value, avoided the idle running of vibration damper.Therefore, its structure and matching requirements are very strict.At first, on compression valve rod 40, put big pad 39, require to put into compression valve according to different power values again and adjust pad 38, valve block 37 is compressed in assembling successively then, the quantity of valve block depends on the size of power value, and compression throttling valve block 36 is put compression valve 35 again, load onto recuperation valve valve block 34, recuperation valve spring 33 afterwards, according to test gained torque recuperation valve snubber 32 is locked again.

Bulb 18 in the bulb assembly of devices 9 is positioned on the plastics ball seat 20, is added with the ion lubricating grease that plays for the effect of lubricating and increasing the service life of bulb 18 on the plastics ball seat 20; Locking steel loop 19 fuses with bulb 18 and plastics ball seat 20 and constitutes bulb sub-assembly 9; Bulb sub-assembly 9 keeps flat into threaded base 7, and bulb sub-assembly 9 usefulness flangers are compressed in the groove of threaded base 7 upper ends; And put bellows 16; Two ends are used collar 15 respectively and following collar 17 fix up and down, play bulb device inner structure dustproof prevented embroidery and protective action.

The vibration damper internal structure improved and accomplishes when optimizing seriation, standardization; Specifically solved: the one, the recuperability value requirement of vibration damper; The 2nd, the compressive force value requirement of vibration damper;

For the exploitation of the outside entrucking structure of vibration damper, use face is more extensive, performance is more superior, versatility is stronger.Be embodied in: one, replace a plate structure as the entrucking critical piece, solved the problem of restricted, the anti-multidirectional impact force poor performance of entrucking angle with ball head structure; Two, use the screw thread bulb assembly that is tightened to be connected with vibration damper, more present support plate welding technique for fixing is simple, assembling and changing conveniently.

Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims

1, the vibration damper that has ball head structure includes connecting rod (1), guider sub-assembly (2), fuel tank sub-assembly (3), clutch release slave cylinder (4), back-up ring (5), piston sub-assembly (12) and sub assembly of bottom valve (13); Described guider sub-assembly (2) comprises guider (2a), oil sealing (10) and guide bush (11); Fuel tank sub-assembly (3) comprises fuel tank (3a), is positioned at the bottom (14) of fuel tank (3a) lower end; It is characterized in that: also include threaded base (7), bellows sub-assembly (8) and bulb sub-assembly (9); Described fuel tank assembly comprises the bulb connecting base (6) that is positioned at fuel tank (3a) lower end;

Described bellows sub-assembly (8) includes equipped mutually last collar (15), bellows (16) and following collar (17); Bulb sub-assembly (9) includes equipped mutually bulb (18), locking steel loop (19) and plastics ball seat (20);

Described guider sub-assembly (2) is chimeric and be sleeved on connecting rod (1) upper end through fuel tank (3a) and clutch release slave cylinder (4) upper end; It comprises equipped mutually oil sealing (10), guider (2a) and guide bush (11), the oil sealing (10) that is used for the side oil sealing be located at guider (2a) above, guider (2a) supports equipped to connecting rod (1) and clutch release slave cylinder (4), to keep concentric with fuel tank (3a); Described bulb connecting base (6) is welded in described bottom (14) lower end, and described bulb connecting base (6) is through threaded base (7) locking described bulb sub-assembly (9).

2, the vibration damper with ball head structure according to claim 1, it is characterized in that: described piston sub-assembly (12) is sleeved on connecting rod (1) lower end, and it is included in helical spring (22), the flowing valve valve block (23) that is inlaid in encapsulate piston (24) top and the recovery throttle valve plate (25) that is inlaid in encapsulate piston (24) bottom successively, rebuilt valve valve block (26), restores pad (27), rebuilt valve (28), axle sleeve (29), return spring (30) and restores nut (31).

3, the vibration damper with ball head structure according to claim 2, it is characterized in that: described compression valve sub-assembly (13) is chimeric fixing through fuel tank (3a) and clutch release slave cylinder (4) lower end, and it comprises equipped successively compression valve rod (40), big pad (39), compression valve adjustment pad (38), compression valve block (37), compression valve throttling sheet (36), compression valve (35), recuperation valve valve block (34), recuperation valve spring (33) and recuperation valve snubber (32).

4, according to claim 1 or 2 or 3 described vibration dampers with ball head structure, it is characterized in that: the bulb (18) in the described bulb assembly of devices (9) is positioned on the described plastics ball seat (20), is added with the ion lubricating grease that plays for the effect of lubricating and increasing the service life of bulb (18) on the described plastics ball seat (20); Described locking steel loop (19) fuses with bulb (18) and plastics ball seat (20) and constitutes described bulb sub-assembly (9); Described bulb sub-assembly (9) keeps flat into threaded base (7), and described bulb sub-assembly (9) is compressed in the groove of described threaded base (7) upper end with flanger; And put bellows (16); Two ends are used collar (15) respectively and following collar (17) is fixed up and down.

5, the vibration damper with ball head structure according to claim 4 is characterized in that: described bulb connecting base (6) fixes and locks described bulb sub-assembly (9) through threaded base (7) with screw thread fastening glue.