CN103921614B - Built-in pipe ring and the non-inflatable tyre of hoop - Google Patents

Abstract

A non-pneumatic tire with a built-in circular tube ring and hoop, including a conjoined carcass, at least three connecting columns connected to the opposite column on both outer walls are equally spaced on the tube surface of a circular tube ring and connected to the column The opposite columns are all parallel to the rotation axis of the circular pipe ring, and at least one elastic hoop is placed in the cavity of the two-piece mold. The cavity wall above the lower part of the cross section of the cavity forms an Ω circle, and at least three sets of equal intervals are arranged on the lower wall Two sets of support rings facing each other and whose length direction is perpendicular to the rotation axis of the Ω ring, at least one end of the support ring set has a groove, and the ring line in the circular pipe ring coincides with the ring formed by the cross section of the cavity Ω , each elastic hoop is respectively embedded in the groove of each support ring column in the same direction, so that the largest ring formed by each support ring column around the rotation axis of the circular pipe ring coincides with the smallest circular ring formed by the connecting columns around the rotation axis of the circular pipe ring The tire is made by pouring liquid colloidal polymer material into the cavity to form the connected carcass.

Description

Airless tires with built-in tube rings and hoops

technical field

The invention is about the invention of the air-free tire with built-in circular tube ring and hoop.

Background technique

The first major defect of existing air-free tires is that the tire hoop is not tight enough to the rim, causing the tire to separate from the rim and slide relative to the rim, which is not suitable for high-speed or heavy-duty driving. The second major defect is that the tire It is foamed. After being pressed, the cells become permanently smaller and cause the tire to sag, resulting in uneven and enlarged contact surface of the tire, and increased driving jitter and rolling resistance of the vehicle.

Contents of the invention

A non-pneumatic tire with a built-in circular tube ring and hoop, including a conjoined carcass, at least three connecting columns connected to the opposite column on both outer walls are equally spaced on the tube surface of a circular tube ring and connected to the column The reverse columns are all parallel to the rotation axis of the circular pipe ring, together with at least one elastic hoop, are placed in the cavity of the two-piece mold. The cavity wall above the lower part of the cross section of the cavity forms an Ω circle, and at least three sets of equal intervals are arranged on the lower wall Two pairs of support ring columns facing each other and whose length direction is perpendicular to the rotation axis of the Ω ring, at least one end of the support ring column group has a groove. Each elastic hoop is respectively embedded in the grooves of the same-direction support ring columns, so that the largest circle formed by each support ring column around the rotation axis of the circular pipe ring and the minimum circle formed by the connecting columns around the rotation axis of the circular pipe ring The rings are superimposed, and the colloidal polymer material is poured into the cavity to form a connected carcass to make the tire.

Advantages of the invention: In this tire, the opposite columns of the connecting column not only facilitate the quick positioning of the two sides of the circular pipe ring, but also minimize the struts exposed to both sides of the tire. It can also precisely position the ring direction of the round pipe ring. The hoop can not only tighten the tire on the rim but also increase the elasticity of the bottom ring layer inside. The round pipe ring can not only improve the elasticity but also reduce the use of materials and reduce the internal temperature rise. Both the single steel wire ring and the composite ring can improve the bearing capacity and elasticity.

Description of drawings

Figure 1 shows the flat section of the tire basic parts placed in the two-part mold; Figure 2.1 shows the front view of the closed connecting cylinder; Figure 2.2 shows the side view of the closed connecting cylinder; Figure 2.3 shows the front view of the slotted cylinder; Figure 2.5 shows the front view of the opening and the column; Figure 2.6 shows the side view of the opening and the column; Figure 3.1 shows the mold cavity and the single-slot spacer column set; Figure 3.2 shows the mold cavity and the double-slot spacer column set; Figure 4.1 shows a spring hoop; Figure 4.2 shows a flat section of a bomb tube hoop; Figure 5 shows a tire cross section of a spring hoop and a closed cylinder; Figure 6 shows a tire cross section of a spring hoop and an open cylinder; Fig. 7 shows a tire cross-section of a spring hoop with two single-piece steel wire rings and a split cylinder; Fig. 8 shows a tire cross-section of a spring hoop with two single-piece steel wire rings and an open joint cylinder; Fig. 9 shows a tire cross-section of a bomb tube hoop and the composite ring of the original material and the open connecting cylinder; Figure 10 shows a tire cross-section of a bullet tube hoop and the composite ring of the original material and the slotted connecting cylinder; Figure 11 shows a The tire cross-section of the tube hoop and cord composite ring and the slotted coupling; Figure 12 shows the tire cross-section of the two spring hoops and the steel wire composite ring and the closed coupling; Figure 13 shows the two tube rings Cross-section of tire with hoop and cord composite ring and closed coupling.

Among Fig. 1 to Fig. 13: closed connecting cylinder-11, slotted connecting cylinder-12, open connecting cylinder-13, round tube ring-2, spring hoop-31, elastic tube hoop-32, mold cavity -4. Single groove support ring column group-51, double groove support ring column group-52, outer tire-6, steel wire ring-70, raw material composite ring-71, cord composite ring-72, steel wire composite ring-73 , Cord steel wire composite ring-74.

detailed description

The embodiment is divided according to whether there is a single steel wire ring or a composite ring.

Embodiment 1, as shown in Figure 1 to Figure 3.1, Figure 4.1, Figure 5, and Figure 6: eight closed connecting cylinders 11 or open connecting cylinders 12 that are connected to reverse columns on both outer walls are equally spaced in one The tube surface of the circular pipe ring 2 and the reverse column of the cylindrical tube are all parallel to the rotation axis of the circular pipe ring (that is, the reverse column supports the two side walls of the circle formed by Ω, so that the circular pipe ring does not generate an axis in the cavity. direction displacement), together with a spring hoop 41 is placed in the mold cavity of the two-petal mold, the cavity wall above the lower part of the cross section of the mold cavity 4 is Ω circle, and the lower wall surface is provided with eight groups of equally spaced, pairwise opposite, long To the single-end support ring column group 51 perpendicular to the axis of rotation of the Ω ring, the coincidence of the middle ring line of the circular tube ring and the ring formed by the cross section of the mold cavity Ω (that is, the middle ring line of the Ω ring is set as the middle ring line of the entire tire) , so as to complete the positioning of the rotating shaft of the circular tube ring and the tire, a spring hoop 41 is embedded in each end groove of the single-end supporting ring column group, so that each supporting ring column and all connecting columns can go around the rotating shaft of the circular tube ring, that is, around the rotating shaft of the tire The largest circular ring (that is, the circular ring formed by the apex of each supporting ring column) and the smallest circular ring (that is, the circular ring formed by the bottom points of the cylindrical cylinders of the connecting columns) coincide (so that the circular pipe ring is not in the mold cavity) produce radial displacement in the center), pour the colloidal polymer material into the cavity to form the conjoined car tire 6 to make the tire; The groove along the wall width, the surrounding wall of the cylinder is a closed closed column cylinder or a slotted slotted cylinder or an open open cylinder. In this example, Figure 5 is a closed pillar cylinder, and Figure 6 is a closed pillar cylinder. The open support cylinder, the round tube ring is made of polymer material, the cross section is a perfect circle or a rectangle with arc angles or a square with arc angles, and the surface is smooth or ring grooved or corrugated. For example, the cross-section of the round pipe ring is a perfect circle and the surface is smooth. It is made of pipe material. First, the pipe material is bent into a ring, and then the end is welded by hot-melt welding or ultrasonic welding. The elastic hoop is a spring hoop with a short pitch. , or a spring hoop formed by placing a long-pitch spring in a plastic tube. The springs are connected by interlocking. It is Ω-shaped, and each set of support ring columns is a single-slot support ring column group with one end having a groove and the other end without a groove, or a double-slot support ring column group with two opposite ends having grooves. For example, it is a single-end groove support ring column. The aforementioned round pipe ring, support tube, and plastic tube are preferably thermoplastic polyurethane or natural rubber. The reverse column of the support tube can also be a continuous ring bar. The column can be a separate column connected to the circular pipe ring, or it can be a continuous ring rib. With thermoplastic polyurethane or natural rubber, the two-lobed ring of the connected reverse column or the reverse ring rib can be injection molded first, and then combined. It can be molded into a special-shaped circular tube ring, and can also be extruded to form a special-shaped circular tube with conjoined reverse ring ribs, and then connected into a special-shaped circular tube ring; pouring such as liquid polyurethane or molten natural rubber to connect the objects placed in the mold cavity One body forms the outer tire at the same time.

Embodiment 2, as shown in Figure 1 to Figure 3.1, Figure 4.1, Figure 7, and Figure 8: the connecting cylinder shown in Figure 7 and Figure 9 is a slotted connecting cylinder 12, an open connecting cylinder 13, two single The body steel wire ring 70 is symmetrically embedded in the top side inner wall groove of the inner peripheral wall of the open connecting cylinder or the slotted connecting cylinder; It is placed in the special-shaped circular pipe ring two-part mold of the conjoined reverse column or reverse ring rib to realize the plastic combination, and the end of the single steel wire ring is welded or pipe-connected. Others are the same as in Embodiment 1.

Embodiment three, as shown in Figures 1 to 4.2, and Figures 9 to 13: a hoop shown in Figures 10 and 11 is that the elastic tube hoop 32 is embedded in the groove of the single-ended groove support ring column group 51, and the elastic tube The hoop is formed by placing a long-pitch coil spring in a plastic tube and then connecting the two ends of the spring. The support ring column shown in Figure 12 and Figure 13 is a double-slot support ring column group 52, and the double-slot support ring in Figure 12 A spring hoop 31 is respectively embedded in each facing groove of the column group, and a bullet tube hoop 32 is respectively embedded in each facing groove of the double groove support ring column group of Fig. The finished top ring side is covered with this material composite ring 71, and the top ring side formed by the top surface of the peripheral wall of the slit connecting cylinder 12 of Fig. 10 is covered with this material composite ring 71, and the slit connecting cylinder of Fig. 11 The top ring side formed by the top surface of the peripheral wall of 12 is put on the cord composite ring 72, and the top ring side formed by the top surface of the peripheral wall of the closed column tube 11 of Fig. 12 is put on the steel wire composite ring 73, and the closed The top ring formed by the top surface of the peripheral wall of the connecting column 11 is covered with a cord steel wire composite ring 74; the material of the composite ring is thermoplastic polymer material, and the cross section is crescent-shaped, and the composite ring is divided into four types: , one is the original material composite ring, the second is the cord composite ring with cord fabric inside, the third is the steel wire composite ring with steel wire ring inside, and the fourth is the cord steel wire composite ring with cord fabric and steel wire ring inside, corresponding Its set method can also be injection-molded to make a special-shaped circular pipe ring of conjoined reverse column or reverse ring rib and body compound ring, or extrude a special-shaped round pipe of conjoined reverse ring rib and body compound ring, and then connect Barge into a circular tube ring.

Claims (8)

1. The most built-in pipe ring and the non-inflatable tyre of hoop, comprise disjunctor cover tire, it is characterized in that, ins succession at least three two lateral wall Reversely on the equally spaced pipe face being enclosed within a pipe ring of pedestal cylinder of post and the reverse post of pedestal cylinder is all parallel to pipe ring Rotating shaft, is placed in the die cavity of two flap-type moulds together with at least one elastic hoop, and the above cavity wall of cross-sectional lower part of die cavity is Ω Circumference, bottom wall arrange at least three groups equally spaced, the most in opposite directions, long to being perpendicular to the pushing out ring post group of Ω annulus rotating shaft, There is a groove a pushing out ring post group at least termination in the same direction, and pipe ring Middle Ring Line and the die cavity Ω cross section institute Middle Ring Line in annulus is heavily Closing, each elastic hoop is respectively embedded in the groove of each pushing out ring post the most in the same direction, make each pushing out ring post around pipe ring rotating shaft in maximum annulus With all pedestal cylinders around pipe ring rotating shaft in minimum annulus overlap, formed outside disjunctor to cavity infusion liquid colloidal condition macromolecule material This tire i.e. made by tire.
2. Built-in pipe ring the most as claimed in claim 1 and the non-inflatable tyre of hoop, is characterized in that, pedestal cylinder is macromolecule material Matter, reverse styletable head is cone, and cylinder internal perisporium has along the wide groove of wall, and cylinder perisporium is in the Guan Bi pedestal cylinder of Guan Bi or in opening Crack pedestal cylinder or the opening pedestal cylinder in opening of seam.
3. Built-in pipe ring the most as claimed in claim 1 and the non-inflatable tyre of hoop, is characterized in that, pipe ring is macromolecule material Matter, cross section be circular or in arc chord angle rectangle or in arc chord angle square, surface is shiny surface or circumferential groove face Or pipe is to corrugated surface.
4. Built-in pipe ring the most as claimed in claim 1 and the non-inflatable tyre of hoop, is characterized in that, each group pushing out ring post is in together Groove is had and the single cavity pushing out ring post group of another termination slotless in the same direction to termination, or in the two the most slotted double flute in termination pushing out ring posts in opposite directions Group.
5. Built-in pipe ring the most as claimed in claim 1 and the non-inflatable tyre of hoop, is characterized in that, elastic hoop is short pitch Spring hoop, or be placed in plastic pipe the bomb tube hoop constituted in long pitch spring.
6. Built-in pipe ring the most as claimed in claim 1 and the non-inflatable tyre of hoop, is characterized in that, to cavity infusion liquid colloidal state Before macromolecular material, each pedestal cylinder perisporium end face in apical ring side set on this material be thermoplastics type's macromolecule material, transversal Face is meniscate complex loop.
7. Built-in pipe ring the most as claimed in claim 1 or 2 and the non-inflatable tyre of hoop, is characterized in that, to cavity infusion liquid Before colloidal condition macromolecule material, embed several and pipe ring top in the top side inboard wall groove symmetry being positioned at each pedestal cylinder internal perisporium The monomer steel wire ring matched in side.
8. Built-in pipe ring the most as claimed in claim 6 and the non-inflatable tyre of hoop, is characterized in that, complex loop is that this material is combined Ring, or in set the cord complex loop of cord fabric；Set the steel wire complex loop of steel wire ring in or, or in set cord fabric and steel wire The cord steel wire complex loop of ring.