CN212643407U - Porous nylon runner hydraulic suspension structure of moulding plastics - Google Patents

Abstract

The utility model provides a porous injection molding nylon runner hydraulic suspension structure, which comprises a base mounting bolt, a suspension base, a leather cup, a nylon runner and a runner cover plate; the suspension base is connected with the frame through a base mounting bolt; the leather cup and the nylon runner are connected with the outer cover through the suspension base in a press riveting mode; and the runner cover plate is assembled and positioned with the nylon runner through the runner cover plate positioning hole. The utility model discloses a porous new technology of moulding plastics compares traditional cast aluminium or other metal flow ways, and cost and weight are more excellent, compromise better practicality when satisfying hydraulic damping characteristic, have improved the cold shrink problem of nylon materials, have improved the hydraulic characteristic performance of product, reduce suspension cost and weight simultaneously.

Description

Porous nylon runner hydraulic suspension structure of moulding plastics

Technical Field

The utility model relates to an auto parts field specifically is a porous nylon runner hydraulic pressure suspension structure of moulding plastics.

Background

With the improvement of the industrial level of automobiles, people have higher requirements on the comfort of automobiles, so that more challenges are provided for the vibration isolation of a power assembly and the NVH performance of the whole automobile, and the ideal power assembly suspension can effectively attenuate low-frequency large-amplitude vibration caused by uneven idling gas pressure of a road surface and an engine. In order to reduce noise in the vehicle and improve the steering stability of the vehicle, low rigidity and low damping characteristics are required at high frequencies. The hydraulic suspension overcomes the limitation of small damping of the traditional power assembly rubber suspension, can better meet the requirement of vibration isolation of the automobile power assembly, however, the hydraulic suspension has higher relative cost and more complex structure, and is often difficult to achieve ideal performance requirements in practice. The utility model relates to a porous nylon runner hydraulic pressure suspension of moulding plastics, hydraulic pressure runner adopt nylon materials and porous injection moulding process, effective reduce cost and weight, and porous injection moulding process greatly improves the runner warpage that the cold shrinkage characteristic of nylon runner leads to, and the runner apron can't compress tightly and strike the abnormal sound problem. The hydraulic flow channel with the complex structure brings better hydraulic damping characteristic, and the NVH level of the whole vehicle is improved. Simultaneously, the novel structure can greatly improve the combination of the power assembly and the frame, and is convenient for workers to assemble.

SUMMERY OF THE UTILITY MODEL

The utility model aims at utilizing new technology new material and low-cost structure, designing a high performance's hydraulic pressure suspension structure to improve automobile power assembly's vibration isolation performance, optimize the first-order idle speed shake problem of engine.

In order to achieve the above object, the utility model discloses used technical scheme is:

a porous injection molding nylon runner hydraulic suspension structure comprises a base mounting bolt, a suspension base, steel balls, an outer cover, an anti-collision pad, a core, a leather cup, a decoupling film, a nylon runner, a runner cover plate, a suspension main spring framework, a suspension main spring and ethylene glycol; the suspension base is connected with the frame through a base mounting bolt; the anti-collision pad is sleeved on the core; the leather cup and the nylon runner are connected with the outer cover through the suspension base in a press riveting mode; the decoupling film is arranged in the middle of the nylon runner and covered by a runner cover plate, and the runner cover plate is assembled and positioned with the nylon runner through a runner cover plate positioning hole; the suspension main spring framework fixes the runner cover plate on the nylon runner, and the glycol is sealed in a closed structure formed by the suspension main spring, the nylon runner and the leather cup.

The suspension main spring W + has a tilt angle of 10 degrees with respect to the vehicle Z + direction.

A large air chamber and a small air chamber are reserved on the nylon flow channel, and the flow channel is sealed by sealing liquid through a steel ball at a liquid injection hole; the ethylene glycol can flow in the upper and lower liquid chambers through the nylon flow channel.

The beneficial effects of the utility model reside in that:

1. reducing weight and lowering cost: the hydraulic runner is made of nylon plastic materials, the weight of the hydraulic runner is reduced by 52% compared with that of the traditional cast aluminum metal materials, and the suspension main spring is made of an aluminum core and lighter than a metal plate; compared with the traditional cast aluminum runner, the hydraulic suspension nylon runner has the advantages that the cost is reduced by more than 20%;

2. optimizing the performance: the hydraulic suspension adopts a porous injection-molded nylon runner design with a complex structure, and is debugged in multiple rounds in the early stage, so that the hydraulic suspension is characterized by having high damping and high dynamic stiffness in a low-frequency range of 5-20 Hz, and having low damping and low dynamic stiffness in a frequency band range above 20Hz, particularly having better performance on vibration of an engine near a first-order 13Hz, and greatly optimizing the problem of first-order intermittent jitter existing in the shock insulation of the vehicle type.

3. The structure is advantageous: this circular hydraulic pressure suspension compact structure, it is more excellent to arrange space adaptability, and the mounting means breaks through traditional mounting means simultaneously and is more convenient more practical.

Drawings

Fig. 1 is a front view of a porous injection molding nylon runner hydraulic suspension structure of the present invention;

fig. 2 is a cross-sectional view of a porous injection molded nylon runner hydraulic suspension structure of the present invention;

fig. 3 is an axial view of the porous injection molding nylon runner of the present invention.

In the figure: 1. a base mounting bolt; 2. a suspension base; 3. steel balls; 4. a housing; 5. an anti-collision pad; 6. a core; 7. a leather cup; 8. a decoupling membrane; 9. a nylon runner; 10. a runner cover plate; 11. suspending a main spring skeleton; 12. suspending a main spring; 13. ethylene glycol; 14. a main flow channel; 15. a small air chamber; 16. an atmospheric chamber; 17. a positioning hole of the runner cover plate; 18. and a liquid injection hole.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Example (b): see fig. 1-3.

A porous injection molding nylon runner hydraulic suspension structure is characterized by comprising a base mounting bolt 1, a suspension base 2, steel balls 3, an outer cover 4, an anti-collision pad 5, a core 6, a leather cup 7, a decoupling film 8, a nylon runner 9, a runner cover plate 10, a suspension main spring framework 11, a suspension main spring 12 and ethylene glycol 13; the suspension base 2 is connected with the frame through a base mounting bolt 1; the anti-collision pad 5 is sleeved on the core 6; the leather cup 7 and the nylon runner 9 are connected with the outer cover 4 through the suspension base 2 in a riveting mode; the decoupling film 8 is arranged in the middle of the nylon runner 9 and covered by a runner cover plate 10, and the runner cover plate 10 is assembled and positioned with the nylon runner 9 through a runner cover plate positioning hole 17; the suspension main spring framework 11 fixes the runner cover plate 10 on the nylon runner 9, and the glycol 13 is sealed in a closed structure formed by the suspension main spring 12, the nylon runner 9 and the leather cup 7.

As shown in figure 1, through the structure of core 6, change the engine installation direction into Y to the installation by the Z to, the workman only need stand in the frame both sides during the installation and can assemble, and the space is bigger, the operation of being more convenient for, suspension base 2 is connected with the frame through welding base construction bolt 1, can realize universalization and platformization design through adjustment base 2, and crash pad 5 cover is on core 6, keeps apart the spacing collision of support and suspension. The outer cover 4 is connected with the base 2 through press riveting.

As shown in fig. 2, the leather cup 7 and the nylon runner 9 are connected with the outer cover 4 through the base 2 in a riveting manner, the decoupling film 8 is arranged in the middle of the nylon runner 9 and covered by the runner cover plate 10, and the runner cover plate 10 is assembled and positioned with the nylon runner 9 through the runner cover plate positioning hole 17; the suspension main spring framework 11 fixes the runner cover plate 10 on the nylon runner 9, and the glycol 13 is sealed in a closed structure formed by the suspension main spring 12, the nylon runner 9 and the leather cup 7 and can flow in the upper liquid chamber and the lower liquid chamber through the nylon runner 9; the tilt angle of 10 degrees is formed between the W + direction of the suspension main spring 12 and the Z + direction of the whole vehicle, and through research and basic project tests, the decoupling rate and the modal frequency interval can be effectively improved, and the first-order intermittent jitter of the power assembly is greatly improved.

As shown in figure 3, the utility model adopts the nylon runner 9, and the liquid sealing and sealing are carried out at the liquid injection hole 18 through the steel ball 3, the nylon runner 9 adopts the porous injection molding process, the excess material is adopted for automatic filling during the cold shrinkage after the nylon injection molding to ensure the flatness of the runner, and the runner cover plate 10 is prevented from impacting abnormal sound when the runner is warped to cause large amplitude; two large air chambers 16 and two small air chambers 15 are reserved in the flow channel, and the main flow channel 14 adopts a variable-diameter large flow channel, so that the dynamic characteristic of the hydraulic suspension is effectively improved, and the vibration isolation performance is optimized. Compared with the traditional cast aluminum metal material, the weight of the hydraulic runner made of nylon material is reduced by 52 percent, the cost is reduced by more than 20 percent, and meanwhile, the service life of the nylon plastic mold is 5 times as long as that of the metal mold.

Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can be modified or replaced with other embodiments without departing from the spirit and scope of the present invention, and all such modifications and equivalent substitutions are intended to be encompassed by the scope of the following claims.

Claims (3)

1. A porous injection molding nylon runner hydraulic suspension structure is characterized by comprising a base mounting bolt (1), a suspension base (2), steel balls (3), an outer cover (4), an anti-collision pad (5), a core (6), a leather cup (7), a decoupling film (8), a nylon runner (9), a runner cover plate (10), a suspension main spring framework (11), a suspension main spring (12) and ethylene glycol (13); the suspension base (2) is connected with the frame through a base mounting bolt (1); the anti-collision pad (5) is sleeved on the core (6); the leather cup (7) and the nylon runner (9) are connected with the outer cover (4) through the suspension base (2) in a riveting mode; the decoupling film (8) is arranged in the middle of the nylon runner (9) and covered by a runner cover plate (10), and the runner cover plate (10) is assembled and positioned with the nylon runner (9) through a runner cover plate positioning hole (17); the flow channel cover plate (10) is fixed on the nylon flow channel (9) through the suspension main spring framework (11), and the ethylene glycol (13) is sealed in a closed structure formed by the suspension main spring (12), the nylon flow channel (9) and the leather cup (7).

2. The hydraulic suspension structure with porous injection-molded nylon flow channels as claimed in claim 1, wherein the suspension main spring (12) has a tilt angle of 10 ° between W + and Z + of the whole vehicle.

3. The porous injection molding nylon runner hydraulic suspension structure as claimed in claim 1, wherein a large air chamber (16) and a small air chamber (15) are reserved on the nylon runner (9), and the runner is sealed by liquid through the liquid injection hole (18) through the steel ball (3); the ethylene glycol (13) can flow in the upper liquid chamber and the lower liquid chamber through the nylon flow channel (9).

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