Corrugated pipe type non-inflatable wheel

Abstract

The invention provides a corrugated pipe type non-inflatable wheel which is characterized in that the corrugated pipe type non-inflatable wheel comprises a supporting outer ring (3), a supporting inner ring (5), a corrugated pipe (4), a hub (6), a corrugated anti-skid sheet (1) and a reinforcing ring (2), the hub (6) is located in the center of the wheel, the supporting inner ring (5) is arranged on the outer side of the hub (6) in a sleeving mode, the corrugated pipe (4) is installed between the supporting outer ring (3) and the supporting inner ring (5) in the radial direction of the wheel, and the corrugated anti-skid sheet (1) is arranged on the corrugated pipe (4). The outer supporting ring (3) is arranged on the outer side of the hub (6) and the outer side of the inner supporting ring (5) in a sleeving mode, the hub (6), the inner supporting ring (5), the corrugated pipe (4) and the outer supporting ring (3) jointly form a wheel body, and the corrugated anti-skid piece (1) and the reinforcing ring (2) are arranged on the outer supporting ring (3). The non-inflatable wheel is higher in radial bearing capacity, higher in vibration reduction and unit volume material utilization rate and easier to maintain.

Description

Technical Field

[0001] The present invention belongs to the technical field of tires, and particularly relates to a corrugated non-pneumatic wheel. Background Art

[0002] The wheel contacts the road surface and bears the load to realize the driving function of the vehicle. Currently, pneumatic tires are usually used, which require tire pressure monitoring and inflation, and there are risks of puncture, air leakage and tire blowout. Non-pneumatic wheels do not require maintenance during their service life and there are no risks of air leakage and tire blowout.

[0003] Existing non-pneumatic tire configurations are often formed by circumferential rotation arrays with a constant cross-section, having disadvantages such as weak radial load-bearing capacity, low material utilization rate, poor reliability and maintainability.

[0004] According to the search terms, 5 related patents were initially retrieved, and the documents particularly relevant to the present invention are as follows:

[0005] Search and compare the patent document CN111716960B "A non-pneumatic wheel based on elastic rope loops", which mainly discloses a non-pneumatic wheel based on elastic rope loops, including: a hub, elastic rope loops and an outer tire bead. The difference between the present invention and it is that a corrugated pipe is used as a buffer element, and the radial stiffness and load-bearing capacity of the wheel are significantly enhanced.

[0006] Search and compare the patent document CN111806160B "An elastic non-pneumatic tire and vehicle", which mainly discloses an elastic non-pneumatic tire and vehicle, including a hub, an outer tire bead and a tire body, and the tire body is composed of several annular elastic elements. The difference between the present invention and it is that a corrugated pipe is used as a buffer element, and the radial stiffness and load-bearing capacity of the wheel are significantly enhanced, and the axial stiffness is also better.

[0007] Search and compare the patent document CN111806161B "A tire tread and a tire", which mainly discloses a tire tread, including a pawl assembly and a dust-proof sleeve assembly, focusing on dust prevention and suppression of the tire. The difference between the present invention and it is that a corrugated pipe is used as a buffer element, focusing on the improvement of the axial stiffness and load-bearing capacity of the wheel, and also having the effect of dust prevention and suppression.

[0008] Search and compare the patent document CN212604302U "A non-pneumatic tire", which mainly discloses a non-pneumatic tire, including a honeycomb layer and an outer tire layer, which can prevent sand and stones from entering the tire interior. The difference between the present invention and it is that a corrugated pipe is used as a buffer element, and the overall weight of the wheel is lighter, and the radial stiffness and load-bearing capacity are stronger.

[0009] The retrieved and compared patent document CN118372586A, "A Non-pneumatic Tire with Claw-shaped Spokes", mainly discloses a non-pneumatic tire with claw-shaped spokes. The difference of the present invention lies in using a corrugated pipe as a buffer element, with different principles and configurations, and better radial stiffness and load-bearing capacity of the wheel. Summary of the Invention

[0010] In view of the existing disadvantages of the current wheels, the present invention proposes a corrugated non-pneumatic wheel, which has the advantages of higher material utilization rate per unit volume, stronger radial load-bearing capacity, simpler maintenance and higher reliability. The technical solution of the present invention is as follows:

[0011] A corrugated non-pneumatic wheel, characterized in that it includes a support outer ring (3), a support inner ring (5), a corrugated pipe (4), a hub (6), a corrugated anti-slip sheet (1) and a reinforcing ring (2). The hub (6) is located at the center of the wheel. The support inner ring (5) is sleeved outside the hub (6). The corrugated pipe (4) is installed radially along the wheel between the support outer ring (3) and the support inner ring (5). The support outer ring (3) is sleeved outside the hub (6) and the support inner ring (5). The hub (6), the support inner ring (5), the corrugated pipe (4) and the support outer ring (3) together form the wheel body. The corrugated anti-slip sheet (1) and the reinforcing ring (2) are arranged on the support outer ring (3).

[0012] Furthermore, both ends of the corrugated pipe (4) have flanges, which are respectively used for fixed connection with the support outer ring (3) and the support inner ring (5) by screws. The corrugated part is smoothly transitioned with the flange, and the corrugated shape adopts a "C"-shaped splicing style.

[0013] Furthermore, multiple groups of corrugated pipes (4) are arranged at equal intervals axially of the wheel. Each group includes multiple independent corrugated pipes, which are evenly distributed at equal intervals within 360 degrees circumferentially.

[0014] Furthermore, the hub (6) is connected to the vehicle axle and is located at the center of the wheel. Twelve spokes are evenly arranged. The inside of the spokes is hollow, and the main load-bearing structure is close to the edge of the wheel.

[0015] Furthermore, the corrugated anti-slip sheets (1) are evenly arranged on the grounding side of the support outer ring (3) in the direction consistent with the axial direction of the wheel; multiple reinforcing rings (2) are evenly arranged along the axial direction of the wheel on the grounding side of the support outer ring (3).

[0016] Furthermore, the arrangement direction of the corrugated anti-slip sheet (1) forms an angle of 30 degrees with the axial direction of the wheel.

[0017] Furthermore, the reinforcing ring (2) is arranged outside the support outer ring (3).

[0018] Furthermore, the overall shape of the inner support ring (5) is annular with raised edges. The inner side of the inner support ring (5) is fixed to the wheel hub (6), and the outer side is fixed to the corrugated pipe (4).

[0019] Furthermore, the side profile of the corrugated anti-slip sheet (1) is a sine curve.

[0020] Furthermore, three groups of corrugated pipes (4) are equidistantly arranged along the axial direction of the wheel. Each group includes 12 independent corrugated pipes, which are evenly distributed at intervals of 30 degrees within 360 degrees in the circumferential direction. The three groups of corrugated pipes (4) are staggered, and the angular interval between adjacent two groups is 15 degrees.

[0021] After adopting the above technical solution, compared with the current technology, the non-pneumatic wheel of the present invention has stronger radial load-bearing capacity, better shock absorption, higher utilization rate of materials per unit volume, and easier maintenance. Description of the Drawings

[0022] The following further elaborates on the specific embodiments of the present invention with reference to the drawings, where:

[0023] Figure 1 is the overall axonometric view of the corrugated non-pneumatic wheel of the present invention;

[0024] Figure 2 is the overall front view of the corrugated non-pneumatic wheel of the present invention;

[0025] Figure 3 is the schematic diagram of the corrugated pipe of the present invention;

[0026] Figure 4 is the schematic diagram of the wheel hub of the present invention;

[0027] Figure 5 is the schematic diagram of the inner support ring of the present invention;

[0028] Figure 6 is the schematic diagram of the outer support ring of the present invention;

[0029] Figure 7 is the schematic diagram of the annular reinforcing ring of the present invention;

[0030] Figure 8 is the schematic diagram of the corrugated anti-slip sheet of the present invention.

[0031] Description of the Reference Numerals:

[0032] 1 Corrugated anti-slip sheet; 2 Reinforcing ring; 3 Outer support ring; 4 Corrugated pipe; 5 Inner support ring; 6 Wheel hub. Detailed Description of the Invention

[0033] The following further elaborates on a corrugated non-pneumatic wheel proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. According to the following description, the advantages and features of the present invention will be clearer.

[0034] Figure 1 is an overall axonometric view of the corrugated non-pneumatic wheel of the present invention; Figure 2 is the overall front view of the corrugated non-pneumatic wheel of the present invention. From Figures 1 - 2 it can be clearly seen the positions and installation relationships of the various components of the wheel. As Figures 1 - 2 shown, the corrugated non-pneumatic wheel proposed by the present invention mainly includes a support outer ring 3, a support inner ring 5, a corrugated pipe 4, a hub 6, a corrugated anti-slip sheet 1, and a reinforcing ring 2. The hub 6 is located at the center of the wheel, the support inner ring 5 is sleeved on the outside of the hub 6, the corrugated pipe 4 is installed radially along the wheel between the support outer ring 3 and the support inner ring 5, the support outer ring 3 is sleeved on the outside of the hub 6 and the support inner ring 5, and the hub 6, the support inner ring 5, the corrugated pipe 4, and the support outer ring 3 together form the wheel body.

[0035] The support outer ring 3 directly contacts the ground, so steel with surface hardening treatment is used, which has good wear resistance. The support outer ring 3 is provided with a reinforcing ring 2 and a corrugated anti-slip sheet 1, and the reinforcing ring 2 and the corrugated anti-slip sheet 1 improve the overall stiffness and anti-slip ability of the wheel.

[0036] The corrugated anti-slip sheets 1 are evenly arranged on the grounding side of the support outer ring 3, and the arrangement direction is the same as the wheel axis direction. Also, according to actual usage requirements, the arrangement direction of the corrugated anti-slip sheets 1 can form a 30-degree angle with the wheel axis direction, etc., so that the wheel has better anti-slip performance in the axial direction.

[0037] A number of reinforcing rings 2 are evenly arranged along the wheel axis on the grounding side of the support outer ring 3. In one example, two reinforcing rings 2 are arranged at equal distances along the wheel axis to enhance the overall rigidity and load-bearing capacity of the wheel. The distances of the two reinforcing rings 2 from the edge of the support outer ring 3 are equal, and the number of reinforcing rings can be determined according to load-bearing and anti-slip requirements. Usually, they are arranged on the outside of the support outer ring 3. In particular, they can also be arranged on the inside of the support outer ring 3.

[0038] The corrugated anti-slip sheet 1 has the same height as the reinforcing ring 2, and the two are locally thinned at the intersecting position to ensure smooth transition and the same height.

[0039] The corrugated pipe 4 is installed between the support outer ring 3 and the support inner ring 5 and is arranged radially along the wheel. It is the main shock-absorbing and energy-dissipating component in the present invention, and its function is to buffer and dissipate the vibration and impact transmitted by the road surface through its own deformation, and can also effectively improve the utilization rate of materials.

[0040] Figure 3 is the corrugated pipe schematic diagram of the present invention. As Figure 3As shown, both ends of the corrugated pipe 4 have flanges, which are respectively used for fixedly connecting with the support outer ring 3 and the support inner ring 5 by screws. The corrugated part is smoothly transitioned with the flange. The corrugated shape adopts a "C"-shaped splicing style, and the overall stiffness of the corrugated pipe is not less than 600 N / mm. The material of the corrugated pipe 4 is preferably an iron-based precision elastic alloy Ni36CrTiAl.

[0041] The corrugated pipe 4 of the present invention has a compact structure, good vibration damping and sealing performance, can compensate for the relative displacement through its own deformation, has high strength and good adaptability. In one example, the corrugated height of the corrugated pipe 4 is 16 mm and the corrugated pitch is 32 mm.

[0042] There can be multiple groups of corrugated pipes 4. The corrugated pipes in the same group are evenly arranged along the radial direction of the wheel. The number of selected corrugated pipe groups and the interval angle of each group of corrugated pipes can be optimized according to the load borne by the wheel. In one example, 3 groups of corrugated pipes 4 are equidistantly arranged axially on the wheel. Each group includes 12 independent corrugated pipes, which are evenly distributed at intervals of 30 degrees within 360 degrees in the circumferential direction. The three groups of corrugated pipes (4) are staggered, and the angle interval between adjacent two groups is 15 degrees. This layout method can effectively improve the radial load-bearing capacity of the wheel and the uniformity of force. After the wheel works for a long time, if there is a corrugated pipe 4 damaged or its performance deteriorates, just replace the damaged corrugated pipe 4, making the wheel maintenance relatively simple.

[0043] Figure 4 is a schematic diagram of the hub of the present invention. The hub 6 is connected to the vehicle axle and is located at the center of the wheel. As Figure 4 shown, in order to better improve the radial load-bearing capacity of the wheel and disperse the force, in a design, the hub 6 is evenly provided with 12 spokes. The inside of the spokes is hollow, and the main load-bearing structure is closer to the edge of the wheel. The hub 6 is evenly provided with 12 hollow spokes along the axis for one week. The adjacent planes of the spokes are smoothly transitioned with rounded corners, which can improve the stress concentration situation. The design that the main load-bearing structure is closer to the edge of the wheel can ensure that the radial load-bearing capacity of the hub is stronger under the condition of using the same weight of materials.

[0044] Figure 5 is a schematic diagram of the support inner ring of the present invention. As Figure 5 shown, the support inner ring 5 is integrally circular ring-shaped with protrusions at the edge. The inner side of the support inner ring 5 is fixed to the hub 6, and the outer side is fixed to the corrugated pipe 4, transmitting the load and keeping the wheel with good rigidity. The support inner ring 5 is perforated according to the installation position of the corrugated pipe 4.

[0045] Figure 6 is a schematic diagram of the support outer ring of the present invention. As Figure 6As shown, the structure of the supporting outer ring 3 is similar to that of the supporting inner ring 5. It is integrally in an annular shape with protrusions at the edges, which are used to install and fix the corrugated anti-slip sheet 1 and the reinforcing ring 2, and at the same time directly contact the ground to complete the wheel traveling function. The edge protrudes towards the hub side to prevent larger redundant objects from entering the wheel. The supporting outer ring 3 also needs to be perforated, and the perforations are for fixing the flange of the corrugated pipe 3 with screws.

[0046] Figure 7 It is a schematic diagram of the annular reinforcing ring of the present invention. As Figure 7 shown, the reinforcing ring 2 of the present invention is a ring, and inward notches are evenly distributed at both sides of the ring at intervals. The size of the ring matches that of the supporting outer ring 3.

[0047] Figure 8 It is a schematic diagram of the corrugated anti-slip sheet of the present invention. As Figure 8 shown, in one example, the side contour of the corrugated anti-slip sheet 1 is a sine curve, which has better grip ability, making the anti-slip and grip performance of the wheel better. In one example, 40 corrugated anti-slip sheets 1 in the shape of wavy strips are evenly arranged on the outside of the supporting outer ring 3, and the arrangement direction is the same as the wheel axis direction. In extended applications, the arrangement direction of the corrugated anti-slip sheet 1 can also be 30 degrees with respect to the wheel axis, etc. The material of the corrugated anti-slip sheet 1 can be selected as rubber, steel, etc. according to the road conditions.

[0048] After testing, the non-pneumatic wheel of the corrugated pipe type can withstand a load of 1.2 kN when it sinks by 1 mm, and the wheel weight is about 20% lighter than that of the traditional pneumatic type. It can be used for vehicles traveling on the lunar surface and their ground test simulation vehicles.

[0049] It should be noted that the above is only a schematic illustration and description of the present invention. Those skilled in the art should understand that any modification and replacement of the present invention fall within the protection scope of the present invention.

Claims

1. A corrugated non-inflatable wheel, characterized in that, It includes a support outer ring (3), a support inner ring (5), a corrugated pipe (4), a hub (6), a corrugated anti-slip sheet (1) and a reinforcing ring (2). The hub (6) is located at the center of the wheel. The support inner ring (5) is sleeved outside the hub (6). The corrugated pipe (4) is installed radially along the wheel between the support outer ring (3) and the support inner ring (5). The support outer ring (3) is sleeved outside the hub (6) and the support inner ring (5). The hub (6), the support inner ring (5), the corrugated pipe (4) and the support outer ring (3) together form the wheel body. The corrugated anti-slip sheet (1) and the reinforcing ring (2) are arranged on the support outer ring (3).

2. The corrugated non-inflatable wheel according to claim 1, wherein Both ends of the corrugated pipe (4) have flanges, which are respectively used for fixedly connecting with the support outer ring (3) and the support inner ring (5) by screws. The corrugated part is smoothly transitioned with the flange, and the corrugated shape adopts a "C" - shaped splicing style.

3. The corrugated non-inflatable wheel according to claim 1, wherein, A plurality of groups of corrugated pipes (4) are equidistantly arranged axially along the wheel. Each group includes a plurality of independent corrugated pipes, which are evenly distributed at equal intervals within 360 degrees in the circumferential direction.

4. The corrugated non-inflatable wheel according to claim 1, characterized in that, The hub (6) is connected to the vehicle axle and is located at the center of the wheel. Twelve spokes are evenly arranged. The inside of the spokes is hollow, and the main load - bearing structure is close to the edge of the wheel.

5. The corrugated non-pneumatic wheel according to claim 1, wherein The corrugated anti - slip sheets (1) are evenly arranged on the grounding side of the support outer ring (3) in the axial direction of the wheel; a plurality of reinforcing rings (2) are evenly arranged along the axial direction of the wheel on the grounding side of the support outer ring (3).

6. The corrugated non-pneumatic wheel according to claim 1, characterized in that The arrangement direction of the corrugated anti - slip sheet (1) is at an angle of 30 degrees with the axial direction of the wheel.

7. The corrugated non-pneumatic wheel according to claim 1, characterized in that, The reinforcing ring (2) is arranged outside the support outer ring (3).

8. The corrugated non-pneumatic wheel according to claim 1, wherein The support inner ring (5) is integrally circular - ring - shaped with a protrusion at the edge. The inner side of the support inner ring (5) is fixed to the hub (6), and the outer side is fixed to the corrugated pipe (4).

9. The corrugated non-pneumatic wheel according to claim 1, wherein, The side contour of the corrugated anti - slip sheet (1) is a sine curve.

10. The corrugated non-pneumatic wheel according to claim 1, characterized in that, Three groups of corrugated pipes (4) are equidistantly arranged axially along the wheel. Each group includes 12 independent corrugated pipes, which are evenly distributed at intervals of 30 degrees within 360 degrees in the circumferential direction. The three groups of corrugated pipes (4) are staggered, and the angular interval between adjacent two groups is 15 degrees.

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