CN218235942U - Automobile shock absorber bending hanging ring structure - Google Patents

Abstract

The utility model discloses a curved rings structure of automobile shock absorber relates to the curved rings technical field of automobile shock absorber, including curved rings and connecting rod, curved rings and connecting rod fixed connection, the outside of curved rings is cylindric, the inside of curved rings be provided with the little big waist drum shape hole in two holes of intermediate aperture and with waist drum shape hole matched with cushion collar, the appearance angle of cushion collar is than the big 9-11 degrees of the indent angle of curved rings, the 5-6mm interlude of cushion collar is the straightway, inside round hole that is provided with through of cushion collar and with round hole matched with inner tube. The utility model discloses can improve production efficiency, the welding and the cooperation intensity of the curved rings of reinforcing and connecting rod improve the life of shock absorber.

Description

Automobile shock absorber bending hanging ring structure

Technical Field

The utility model relates to a curved rings technical field of automobile shock absorber specifically is a curved rings structure of automobile shock absorber.

Background

In the design process of the vehicle shock absorber, the functions of the upper and lower rings and the upper and lower guide pipe buffer sleeves after press fit are as follows: 1. the connecting vehicle body is connected with the shock absorber; 2. balancing manufacturing tolerances of the body and the shaft; 3. under the condition of generating the torque as small as possible, a universal deflection angle is provided to adapt to the motion of the vehicle; 4. the elastic movement characteristic of the whole system is improved, vibration is absorbed, and driving comfort is provided; 5. the noise caused by the vibration of more than 30HZ is filtered.

Due to the characteristics of large load capacity of heavy vehicles, severe working conditions and the like, in order to obtain an enough universal deflection angle and avoid the damage of the guide pipe buffer sleeve caused by insufficient deflection angle in the use process, the bent suspension ring-guide pipe buffer sleeve structure is used in the upper and lower mounting modes of the chassis shock absorber of many heavy vehicles, so that the service life of the shock absorber is prolonged. The conventional bent hanging ring is processed into a bent hanging ring by a straight hanging ring directly through a stamping and bulging mode. The conventional bent hoisting ring is matched with the guide pipe buffer sleeve, so that the following defects exist: 1. because the conventional bent hoisting ring is processed into the influence of stamping expansion, the middle section of the arc is a stress concentration area; 2. the stamping expansion does not belong to a finish machining mode, and the consistency of the expansion clearance angles at the two ends of the stamping expansion is slightly poor, so that the consistency of stress conditions at the two ends of the guide pipe buffer sleeve in the use process is influenced, and the service life of the guide pipe buffer sleeve is influenced; 3. because receive the influence of conventional curved rings shape, connecting rod subassembly welding processes is comparatively complicated among its shock absorber, and its major process is as follows: a. manually positioning and welding the connecting rod and the dustproof cover; b. projection welding a lifting ring and a connecting rod; c. the connecting rod sub-assembly is manually reinforced and welded (two sides). 4. Because of the influence of a manual welding mode, the consistency of the welded two ends is slightly poor, the stress unbalance of the shock absorber hanging ring in the use process is influenced, and the welding strength is slightly low and is generally 60000N-70000N; 5. because the structural shape of the conventional bent lifting ring and the guide pipe buffer sleeve is influenced, the matching strength of the bent lifting ring and the guide pipe buffer sleeve is lower, generally 3000N to 4000N, and the guide pipe buffer sleeve is easy to jump out from one end in the using process, so that the use of the shock absorber is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a curved rings structure of automobile shock absorber.

The purpose of the utility model is realized through the following technical scheme: the automobile shock absorber bending suspension ring structure comprises a bending suspension ring and a connecting rod, the bending suspension ring is fixedly connected with the connecting rod, the outer part of the bending suspension ring is cylindrical, the thickness of materials participating in welding of the bending suspension ring is increased (the wall thickness of the conventional bending suspension ring on a heavy vehicle chassis is 5mm, the wall thickness of the bending suspension ring of the utility model is 7.5 mm), the welding tensile strength is greatly improved, a waist drum-shaped hole with a small middle hole and two large ends and a buffer sleeve matched with the waist drum-shaped hole are arranged in the bending suspension ring, the buffer sleeve is made of rubber materials, and in view of the fact that the buffer sleeve has a position shifting phenomenon in the use process of the conventional bending suspension ring, the design idea that the inner shape of the conventional buffer sleeve is similar to that of the bending suspension ring is changed, the appearance angle of cushion collar is greater than the indent angle of curved rings by 9-11 degrees, increases interference magnitude, cooperation density and the laminating degree in curved rings and the cushion collar, the 5-6mm interlude of cushion collar is the straightway, cooperates (belongs to little interference cooperation) with the middle section in the waist drum shape hole of curved rings, and the unnecessary rubber of the big department of its interference magnitude extrudes the packing once more with middle little interference position at first, is compact state at last, has strengthened the position intensity of shifting of cushion collar, and the withdrawal load generally is 5000N-6000N, has significantly reduced the risk that the cushion collar scurried from one end in the use, inside round hole that runs through and the inner tube with round hole matched with that is provided with of cushion collar.

Furthermore, the connecting rod is sleeved with a positioning sleeve.

Furthermore, the connecting rod and the positioning sleeve are sleeved with a dustproof cover.

Preferably, the bent lifting ring and the connecting rod are fixed by welding, the connecting rod and the dustproof cover are fixed by welding, the bent lifting ring and the connecting rod as well as the connecting rod and the dustproof cover are fixed by spot welding, and then are welded uninterruptedly after spot welding, so that the bent lifting ring and the connecting rod as well as the connecting rod and the dustproof cover are welded firmly, the conventional bent lifting ring welding mode is 2-welding, wherein the length of each welding seam is 20-26 mm, MAG135 gas shielded welding is used for welding the bent lifting ring, the dustproof cover and the connecting rod together, the welding length and the fusion of the two welded bent lifting rings are poor, the welding quality and the welding strength are influenced, and the bent lifting ring is easy to cause the phenomenon of single-side fracture due to uneven stress on the two sides in the using process; the utility model discloses the welding is even in the welding, improves the even atress of product in the use, avoids damaging in advance because of each part is uneven because of the atress in the use, improves product life, simultaneously the utility model discloses a curved rings size and shape tolerance all are superior to the curved rings of conventionality to and disposable tack weld is superior to the many times tack weld of multichannel process, and connecting rod branch assembly size and form and position tolerance after the welding of curved rings are more excellent.

Preferably, the Shore hardness of the buffer sleeve is 80 degrees, the rigidity of the buffer sleeve is about 10000N, and under the same stress condition, the high-hardness buffer sleeve can reduce the stress creep deformation of rubber, and reduce the damage of the rubber caused by large impact and creep deformation for a long time and even the failure of the shock absorber.

The utility model has the advantages that:

1. the utility model discloses the inside shape of curved rings than prior art is unchangeable, and the outside adopts cylindricly, has reduced the stress concentration influence after the welding, therefore has reduced curved rings because of fatigue fracture's risk, and has increased tensile and anti-shearing area in the use, and its welding parameter (welding current and welding voltage) can improve 20% for the curved rings of conventionality, and welding strength generally is 85000N to 95000N.

2. The utility model discloses a big 9-11 degrees of the interior concave angle of appearance angle ratio curved rings of cushion collar, the 5-6mm interlude of cushion collar are the straightway, have strengthened the unit area cooperation density with curved rings, have reduced the risk that the cushion collar scurries, greatly reduced the product damage risk, improved product reliability, extension product life.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic diagram of a comparison structure between a conventional bent hanging ring and the bent hanging ring of the present invention;

FIG. 3 is a schematic structural view of the present invention during welding;

in the figure: the welding device comprises a bent lifting ring 1, a connecting rod 2, a waist drum-shaped hole 3, a buffer sleeve 4, an inner pipe 5, a positioning sleeve 6, a dustproof cover 7, a positioning shaft 8, a positioning plate 9, a sliding cylinder 10, a left welding gun 11, a right welding gun 12, a first bottom plate 13, a second bottom plate 14 and a rotary drive 15.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

The present invention will be further explained with reference to the drawings and specific embodiments.

As shown in fig. 1-3, the bending suspension ring structure of the automobile shock absorber comprises a bending suspension ring 1 and a connecting rod 2, the bending suspension ring 1 is fixedly connected with the connecting rod 2, the outer part of the bending suspension ring 1 is cylindrical, the thickness of the material participating in welding of the bending suspension ring 1 is increased, the welding tensile strength is greatly improved, a waist-drum-shaped hole 3 with a small middle hole and two large ends and a buffer sleeve 4 matched with the waist-drum-shaped hole 3 are arranged in the bending suspension ring 1, the buffer sleeve 4 is made of rubber, the design idea that the inner shape of the conventional buffer sleeve is similar to that of the conventional bending suspension ring is changed in view of the fact that the buffer sleeve 4 has a position shifting phenomenon in the use process of the conventional bending suspension ring, the appearance angle of the buffer sleeve 4 is 9-11 degrees larger than the inner concave angle of the bending suspension ring 1, and the interference amount, the matching density and the fitting degree in the buffer sleeve 4 are increased, the middle section of 5-6mm of the buffer sleeve 4 is a straight line section and is matched with the middle section of the waist drum-shaped hole of the bent hanging ring 1 (belonging to small interference fit), redundant rubber at a large interference range is firstly extruded and filled at the middle small interference position again, and finally the buffer sleeve 4 is in a compact state, so that the shifting strength of the buffer sleeve 4 is enhanced, the withdrawing load is generally 5000N-6000N, the risk that the buffer sleeve 4 is shifted out from one end in the using process is greatly reduced, a through round hole and an inner tube 5 matched with the round hole are arranged inside the buffer sleeve 4, the connecting rod 2 is sleeved with the locating sleeve 6, the dustproof cover cap 7 is sleeved with the connecting rod 2 and the locating sleeve 6, the outer diameter of the connecting rod 2 and the inner hole of the dustproof cover cap 7, and the inner diameter of the dustproof cover cap 7 and the outer diameter of the locating sleeve 6 all belong to small clearance fit.

The positioning sleeve 6 and the connecting rod 2 penetrate through a first bottom plate 13 and a second bottom plate 14 of a workbench of the connecting device to be fixed, meanwhile, the bottom of the connecting rod 2 is connected with a rotary drive 15 of the workbench of the connecting device, the bent hanging ring 1 is sleeved on a positioning shaft 8 (the inner diameter of the bent hanging ring 1 and the outer diameter of the positioning shaft 8 are in small clearance fit), then a positioning plate 9 is sleeved on the bent hanging ring 1 to position the bent hanging ring 1, the positioning plate 9 is connected with a sliding cylinder 10 of the connecting device, the sliding cylinder 10 drives the positioning plate 9, the bent hanging ring 1 and the positioning shaft 8 to descend until the upper end face of the connecting rod 2 is in contact with the outer diameter of the bent hanging ring 1, at the moment, a left welding gun 11 and a right welding gun 12 of the workbench of the connecting device move towards the contact position of the upper end face of the connecting rod 2 and the outer diameter of the bent hanging ring 1 at the same time, the connecting rod 2 and a dust-proof cover 7 are fixed in a spot welding mode, the left welding gun 11 is immediately departed from a reset after the spot welding, the rotary drive 15 controls the connecting rod 2 to rotate 360 degrees, in a period from the beginning to the end of rotation, the right welding gun 12 and the welding time of the connecting rod 2 are simultaneously in a cycle, the welding time and the welding time of the connecting rod 2, the welding time is synchronous with the dust-proof cover 2, the work piece production efficiency of the connecting rod 2 is about 0.5.5/5 minutes, and the work piece is improved, and the production efficiency of the dust-proof cover is about 0.5.5 minutes.

The shore hardness of the cushion collar 4 is 80 degrees, and the rigidity of the cushion collar 4 is about 10000N. Under the same stress condition, the high-hardness buffer sleeve 4 can reduce the stress creep deformation of the rubber, and reduce the damage of the rubber caused by long-time large impact and creep deformation, even the failure of the shock absorber.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein and that the invention is not to be considered as limited to the disclosed embodiments, but is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims (6)

1. The utility model provides an automobile shock absorber bending rings structure which characterized in that: including curved rings (1) and connecting rod (2), curved rings (1) and connecting rod (2) fixed connection, the outside of curved rings (1) is cylindricly, the inside of curved rings (1) is provided with the little big waist drum shape hole of two holes of centre bore (3) and with waist drum shape hole (3) matched with cushion collar (4), the appearance angle of cushion collar (4) is than the big 9-11 degrees of indent angle of curved rings (1), the 5-6mm interlude of cushion collar (4) is the straightway, inside round hole that runs through and inner tube (5) with round hole matched with that are provided with of cushion collar (4).

2. The automobile shock absorber flexural hanging ring structure according to claim 1, characterized in that: the connecting rod (2) is sleeved with a positioning sleeve (6).

3. The automobile shock absorber flexural hanging ring structure according to claim 2, characterized in that: and the connecting rod (2) and the positioning sleeve (6) are sleeved with a dustproof cover cap (7).

4. The automobile shock absorber bending suspension ring structure according to claim 3, characterized in that: the bent hanging ring (1) is fixed with the connecting rod (2) through welding, and the connecting rod (2) is fixed with the dust cover (7) through welding.

5. The automobile shock absorber flexural hanging ring structure according to claim 1, characterized in that: the buffer sleeve (4) is made of rubber.

6. The automobile shock absorber flexural hanging ring structure according to claim 5, characterized in that: the Shore hardness of the buffer sleeve (4) is 80 degrees.

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