Novel rubber air spring

Abstract

The utility model provides a novel rubber air spring which comprises an air spring air bag, an upper rolling plate and a lower rolling plate, the upper rolling plate and the lower rolling plate are connected to the upper end and the lower end of the air spring air bag respectively, one side of the upper rolling plate is connected with an air inlet bolt hole, and a mounting cylinder is vertically and fixedly arranged in the middle of the upper side of the lower rolling plate upwards. A self-lubricating elastic body is arranged in the end, away from the lower rolling plate, of the mounting cylinder, a through hole connected with the mounting cylinder is vertically and downwards formed in the middle of the top face of the self-lubricating elastic body, a center supporting rod is vertically and downwards fixedly arranged in the middle of the lower side of the upper rolling plate, and the free end of the center supporting rod penetrates through the through hole and extends into the mounting cylinder. The upper rolling plate and the lower rolling plate are each provided with a plurality of through holes, the lower side of the upper rolling plate and the upper side of the lower rolling plate are each provided with a plurality of nuts with the free ends closed, and the through holes are covered with the nuts respectively. The rubber air spring is simple in structural design, easy to process and convenient to popularize, the transverse damping efficiency of the air spring can be enhanced, and the safety performance is improved.

Description

Technical Field

[0001] The utility model belongs to the field of rubber air springs, and particularly relates to a new type of rubber air spring. Background Art

[0002] During the use of air spring shock absorbers, in addition to bearing the downward load, they also need to bear the lateral load. However, many enterprises do not consider the lateral load performance of air spring shock absorbers when manufacturing them, resulting in the existing air spring shock absorbers not meeting the usage requirements.

[0003] In view of this, in order to solve the above problems, the utility model provides a rubber air spring that can enhance the lateral shock absorption efficiency of the air spring, improve the safety performance, and has a simple structure design, is easy to process, and is convenient for popularization. Summary of the Invention

[0004] The utility model provides a new type of rubber air spring with a simple structure design, easy to process, convenient for popularization, capable of enhancing the lateral shock absorption efficiency of the air spring and improving the safety performance. The specific scheme is as follows:

[0005] A new type of rubber air spring includes an air spring airbag and an upper coil plate and a lower coil plate respectively connected to the upper and lower ends of the air spring airbag. One side of the upper coil plate is connected with an air inlet bolt hole. Vertically upward and fixedly arranged in the middle of the upper side of the lower coil plate is an installation cylinder. Inside the end of the installation cylinder far from the lower coil plate is a self-lubricating elastomer. Vertically downward opened in the middle of the top surface of the self-lubricating elastomer is a through hole connected to the installation cylinder. Vertically downward and fixedly arranged in the middle of the lower side of the upper coil plate is a central support rod, and the free end of the central support rod passes through the through hole and extends into the installation cylinder. A plurality of through holes are opened on both the upper coil plate and the lower coil plate, and among them, the plurality of through holes on the lower coil plate are located outside the installation cylinder. On the lower side of the upper coil plate and the upper side of the lower coil plate are respectively provided with a plurality of nuts with closed free ends, and the plurality of nuts respectively cover outside the plurality of through holes.

[0006] Further, a shock pad is provided at the lower end inside the installation cylinder.

[0007] Furthermore, the diameter of the through hole is larger than the outer diameter of the lower part of the central support rod.

[0008] Still further, the installation cylinder is welded to the lower coil plate, and the central support rod is welded to the upper coil plate.

[0009] The beneficial effects of the utility model are:

[0010] A novel rubber air spring of the utility model can ensure its stability and safety when the connected equipment of the rubber air spring has a lateral displacement by means of a central support rod arranged on the lower side of the upper coil plate, an installation cylinder arranged on the upper side of the lower coil plate, and a self-lubricating elastic member arranged on the upper part of the installation cylinder, improving the efficiency of lateral shock absorption. By setting the self-lubricating elastic member as a guiding component, a certain buffering effect can be achieved when the air spring has a lateral displacement. It has good wear resistance, a small friction coefficient, a long service life, and is convenient for popularization. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a formal cross-sectional view of the utility model.

[0012] Description of reference numerals: air inlet bolt hole 1, upper coil plate 2, air spring airbag 4, central support rod 5, self-lubricating elastomer 6, installation cylinder 7, shock pad 8, nut 9, lower coil plate 10. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0013] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments.

[0014] Refer to Figure 1 , a novel rubber air spring, including an air spring airbag 4 and an upper coil plate 2 and a lower coil plate 10 respectively connected to the upper and lower ends of the air spring airbag 4. An air inlet bolt hole 1 is connected to one side of the upper coil plate 2. A vertically upward fixed installation cylinder 7 is arranged in the middle of the upper side of the lower coil plate 10. A self-lubricating elastomer 6 is arranged inside one end of the installation cylinder 7 away from the lower coil plate 10. A through hole connected to the installation cylinder 7 is vertically downward opened in the middle of the top surface of the self-lubricating elastomer 6. A central support rod 5 is vertically downward fixed in the middle of the lower side of the upper coil plate 2, and the free end of the central support rod 5 passes through the through hole and extends into the installation cylinder 7. A plurality of through holes are opened on both the upper coil plate 2 and the lower coil plate 10. Among them, the plurality of through holes on the lower coil plate 10 are located outside the installation cylinder 7. Nuts 9 with closed free ends are respectively arranged on the lower side of the upper coil plate 2 and the upper side of the lower coil plate 10. The plurality of nuts 9 respectively cover outside the plurality of through holes. When in use, when the connected equipment of the rubber air spring has a lateral displacement, through the arranged central support rod 5 and its end extending into the installation cylinder 7 through the self-lubricating elastomer 6, the self-lubricating elastomer 6 can achieve the lateral stiffness of the air spring airbag 4 by resisting the central support rod 5 during the lateral displacement, thereby reducing the shaking amplitude of the connected equipment, and further improving safety. Among them, the lubricating elastic member 6 as a guiding component can play a certain buffering role. It has good wear resistance, a small friction coefficient, and a long service life.

[0015] A shock-absorbing pad 8 is provided at the lower end inside the installation cylinder 7. When the connecting device generates a longitudinal load and the free end of the central support rod 5 moves downward, the shock-absorbing pad 8 can play a role in shock absorption and buffering.

[0016] The diameter of the through hole is larger than the outer diameter of the lower part of the central support rod 5, further reducing the friction between the two and extending the service life.

[0017] Preferably, the installation cylinder 7 is welded to the lower rolling plate 10, and the central support rod 5 is welded to the upper rolling plate 2.

[0018] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0019] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A novel rubber air spring, comprising an air spring airbag (4) and an upper roll plate (2) and a lower roll plate (10) respectively connected to the upper and lower ends of the air spring airbag (4), characterized in that: An intake bolt hole (1) is connected to one side of the upper roll plate (2); a mounting tube (7) is fixedly provided vertically upward in the middle of the upper side of the lower roll plate (10); a self-lubricating elastic body (6) is provided inside the mounting tube (7) at one end away from the lower roll plate (10); a through hole connected to the mounting tube (7) is opened vertically downward in the middle of the top surface of the self-lubricating elastic body (6); a central support rod (5) is fixedly provided vertically downward in the middle of the lower side of the upper roll plate (2), and the free end of the central support rod (5) passes through the through hole and extends into the mounting tube (7); a plurality of through holes are opened on both the upper roll plate (2) and the lower roll plate (10), wherein the plurality of through holes on the lower roll plate (10) are located outside the mounting tube (7); a plurality of nuts (9) with closed free ends are respectively provided on the lower side of the upper roll plate (2) and the upper side of the lower roll plate (10), and the plurality of nuts (9) are respectively covered outside the plurality of through holes.

2. A new type of rubber air spring according to claim 1, characterized in that: A shock-absorbing pad (8) is provided at the lower end of the interior of the installation tube (7).

3. A new type of rubber air spring according to claim 1, characterized in that: The diameter of the through hole is larger than the outer diameter of the lower part of the central support rod (5).

4. A new type of rubber air spring according to claim 1, characterized in that: The installation cylinder (7) and the lower roll plate (10) and the central support rod (5) and the upper roll plate (2) are all welded and connected.

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