A variable diameter wheel structure

Abstract

This invention proposes a variable-diameter wheel structure, comprising multiple linkage structures and multiple circumferentially deformable flexible honeycomb structures. A support shaft is provided with linkage support I and linkage support II. Linkage support I is slidably connected to the support shaft, and linkage support II is fixedly connected to the support shaft. The circumferentially deformable flexible honeycomb structures are fan-shaped and distributed circumferentially along the support shaft. A linkage structure is provided between every two adjacent circumferentially deformable flexible honeycomb structures. The linkage structure includes links I, II, III, IV, V, VI, VII, and VIII. Links VII and VIII are hinged to opposite sides of two adjacent circumferentially deformable flexible honeycomb structures. Multiple linkage mechanisms drive multiple circumferentially deformable flexible honeycomb structures to extend or contract synchronously, realizing the variable diameter of the wheel structure. This invention can maintain the circumferential shape of the wheel structure while changing its diameter.

Description

Technical Field

[0001] This invention relates to the field of wheel structure technology, and more specifically to a variable diameter wheel structure. Background Technology

[0002] Wheel structures have a wide range of applications across various industries, especially in transportation. Variable diameter wheel structures, due to their adaptability to complex terrain, superior obstacle-crossing capabilities, and suitability for special applications, are widely used in military and civilian all-terrain vehicles, the running gear of various special equipment mobile platforms, mobile robots, and obstacle-crossing robots. However, existing variable diameter wheel structures suffer from the drawback of not maintaining the circumference of the wheel structure when changing its diameter, which reduces the wheel's speed, ride comfort, road condition passability, driving stability, comfort, and driving safety. Summary of the Invention

[0003] To address the problems in the background technology and ensure that the wheel structure maintains its circumference even after its diameter is changed, a variable diameter wheel structure is proposed. This structure includes a support shaft, multiple connecting rod structures, and multiple circumferentially deformable flexible honeycomb structures. The support shaft is equipped with connecting rod supports I and II, which are coaxial with the support shaft. Connecting rod support I is slidably connected to the support shaft, and connecting rod support II is fixedly connected to the support shaft. The circumferentially deformable flexible honeycomb structures are fan-shaped, and multiple such structures are distributed circumferentially along the support shaft. A connecting rod structure is provided between every two adjacent circumferentially deformable flexible honeycomb structures.

[0004] The connecting rod structure includes rod I, rod II, rod III, rod IV, rod V, rod VI, rod VII, and rod VIII. One end of rod IV is hinged to one end of rod VII, and the other end of rod IV is hinged to and slidably connected to rod VIII. One end of rod III is hinged to one end of rod VIII, and the other end of rod III is hinged to the middle part of rod IV and one end of rod II. The other end of rod II is hinged to connecting rod support II. One end of rod VI is hinged to the other end of rod VII, and the other end of rod VI is hinged to and slidably connected to rod VIII. One end of rod V is hinged to the other end of rod VIII. The middle part of rod VI is hinged to the other end of rod V and one end of rod I. The other end of rod I is hinged to connecting rod support I.

[0005] The rods VII and VIII are respectively hinged to opposite sides of two adjacent circumferentially deformable flexible honeycomb structures.

[0006] Preferably, the system further includes a support assembly, which includes a sliding support I, a sliding support II, a support rod I, a support rod II, a support rod III, and a support rod IV. Sliding supports I and II are both slidably connected to the support shaft and are coaxial with it. One end of each support rod I and support rod IV is hinged to the sliding support I via a ball joint, and the other end of each support rod I and support rod IV is hinged to one end of each of two adjacent circumferentially deformable flexible honeycomb structures on opposite sides via ball joints. One end of each support rod II and support rod III is hinged to the sliding support II via a ball joint, and the other end of each support rod III and support rod II is hinged to one end of each of two adjacent circumferentially deformable flexible honeycomb structures on opposite sides via ball joints.

[0007] Preferably, support plates I and II are fixed to opposite sides of two adjacent circumferentially deformable flexible honeycomb structures, and the rods VII and VIII are respectively hinged to support plates I and II of the two adjacent circumferentially deformable flexible honeycomb structures.

[0008] Support rod I and support rod IV are respectively hinged to support plates I and II of two adjacent circumferentially deformable flexible honeycomb structures via ball joints, and support rod III and support rod II are respectively hinged to support plates I and support plates II of two adjacent circumferentially deformable flexible honeycomb structures via ball joints.

[0009] Preferably, the end of the rod II away from the connecting rod support II is hinged to a connecting member II, and the end of the connecting member II away from the rod II is hinged to the rod III;

[0010] The end of the rod I away from the connecting rod support I is hinged to the connecting member I, and the end of the connecting member I away from the rod I is hinged to the middle of the rod VI.

[0011] Preferably, the rod VIII has an axial groove along the circumferentially deformable flexible honeycomb structure, and connectors III and IV are slidably disposed in the groove. The ends of rods IV and VI away from rod VII are respectively hinged to connectors III and IV.

[0012] Preferably, the circumferentially deformable flexible honeycomb structure includes a plurality of rhomboid honeycomb-shaped through holes A, the plurality of through holes A are arranged in rows, and multiple rows of through holes A are provided along the circumference of the circumferentially deformable flexible honeycomb structure.

[0013] Preferably, the circumferentially deformable flexible honeycomb structure is made of spring steel.

[0014] The beneficial effects of this invention are as follows:

[0015] This invention allows for the alteration of the wheel structure's diameter by driving the connecting rod support, while maintaining the wheel structure's circumferential shape under different diameter conditions. This ensures that the wheel structure's stability, comfort, and other characteristics remain unaffected by diameter changes during use. Furthermore, the invention features a simple structure and convenient control. This invention has broad application prospects in the field of wheel structures, particularly in the area of ​​variable diameter wheel structures. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the assembly of the support component, connecting rod structure, and circumferentially deformable flexible honeycomb structure of the present invention.

[0017] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0018] The diagram labels are as follows: 1. Support assembly; 2. Linkage structure; 3. Circumferentially deformable flexible honeycomb structure; 101. Support shaft; 102. Sliding support I; 103. Sliding support II; 104. Support rod I; 105. Support rod II; 106. Support rod III; 107. Support rod IV; 108. Support plate I; 109. Support plate II; 201. Linkage support I; 202. Linkage support II; 203. Rod I; 204. Rod II; 205. Connector I; 206. Connector II; 207. Rod III; 208. Rod IV; 209. Rod V; 210. Rod VI; 211. VII; 212. VIII; 213. Connector III; 214. Connector IV; A. Through hole. Detailed Implementation

[0019] To make the present invention clearer and more understandable, the technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the given embodiments are only one of the implementation methods and do not represent all embodiments.

[0020] In this article, terms such as "above" and "below" are established based on the positional relationship shown in the attached drawings. Depending on the attached drawings, the corresponding positional relationship may also change. Therefore, they should not be interpreted as an absolute limitation on the scope of protection.

[0021] Combined with appendix Figure 1 and attached Figure 2A variable diameter wheel structure includes a support shaft 101, multiple connecting rod structures 2, and multiple circumferentially deformable flexible honeycomb structures 3. The support shaft 101 is provided with connecting rod supports I201 and II202 coaxial with the support shaft 101. Connecting rod supports I201 are slidably connected to the support shaft 101, and connecting rod supports II202 are fixedly connected to the support shaft 101. The circumferentially deformable flexible honeycomb structures 3 are fan-shaped and made of spring steel. Multiple circumferentially deformable flexible honeycomb structures 3 are distributed circumferentially along the support shaft 101, and a connecting rod structure 2 is provided between every two adjacent circumferentially deformable flexible honeycomb structures 3.

[0022] The linkage structure 2 includes rods I 203, II 204, III 207, IV 208, V 209, VI 210, VII 211, and VIII 212. One end of rod IV 208 is hinged to one end of rod VII 211, and the other end of rod IV 208 is hinged to and slidably connected to rod VIII 212. One end of rod III 207 is hinged to one end of rod VIII 212, and the other end of rod III 207 is connected to the middle of rod IV 208 and the other end of rod VIII 212. One end of member II204 is hinged, and the other end of member II204 is hinged to connecting rod support II202. One end of member VI210 is hinged to the other end of member VII211, and the other end of member VI210 is hinged to member VIII212 and slidably connected. One end of member V209 is hinged to the other end of member VIII212. The middle part of member VI210 is hinged to the other end of member V209 and one end of member I203, respectively. The other end of member I203 is hinged to connecting rod support I201.

[0023] The rods VII211 and VIII212 are respectively hinged to opposite sides of two adjacent circumferentially deformable flexible honeycomb structures 3.

[0024] Taking a smaller diameter as an example, when a change in diameter is required, the drive link support I201 slides along the support shaft 101. The drive link support I201 causes the ends of the rods I203 and II204 away from the support shaft 101 to move away from each other, and the scissor structure formed by the rods I203 and II204 is compressed. At the same time, the rods I203 and II204 cause the rods VII211 and VIII212 to move closer to each other. The rods VII211 and VIII212 cause the circumferentially deformable flexible honeycomb structure 3 to extend circumferentially, and the rods I203 and II204 cause the circumferentially deformable flexible honeycomb structure 3 to move radially closer to the support shaft 101. Multiple link structures 2 simultaneously drive multiple circumferentially deformable flexible honeycomb structures 3 to operate according to the above process, thereby realizing a reduction in the diameter of the entire wheel structure.

[0025] Similarly, when the diameter of the wheel structure needs to be increased, the drive link support I201 slides along the support shaft 101, so that the ends of links VII211 and VIII212 move away from each other, and the ends of links I203 and II204 that are away from the support shaft 101 move closer together.

[0026] Specifically, it also includes a support assembly 1, which includes a sliding support I 102, a sliding support II 103, a support rod I 104, a support rod II 105, a support rod III 106, and a support rod IV 107. Both sliding supports I 102 and II 103 are slidably connected to the support shaft 101, and both are coaxial with the support shaft 101. The connecting rod support I 201 and connecting rod support II 202 are located between sliding supports I 102 and II 103. One end of each of the support rods I104 and IV107 is hinged to the sliding support I102 via a ball joint. The other ends of the support rods I104 and IV107 are respectively hinged to the opposite ends of two adjacent circumferentially deformable flexible honeycomb structures 3 via ball joints. One end of each of the support rods II105 and III106 is hinged to the sliding support II103 via a ball joint. The other ends of the support rods III106 and II105 are respectively hinged to the opposite ends of two adjacent circumferentially deformable flexible honeycomb structures 3 via ball joints.

[0027] The support component 1 provides support for the wheel structure and enables multiple linkage structures 2 to move synchronously more stably, thus improving the stability of the wheel structure. With the support component 1, the sliding support I 102 and the sliding support II 103 can act as driving elements, driving the sliding support I 102 and the sliding support II 103 to move closer or further away from each other, thereby changing the diameter of the wheel structure. When the diameter of the wheel structure changes, the linkage support I 201 will slide along the support shaft 101 as a driven element. Specifically, taking a decrease in diameter as an example, when a change in diameter is required, sliding supports I102 and II103 are driven to slide along the support shaft 101. Sliding supports I102 and II103 move away from each other. Sliding support I102 drives support rods I104 and IV107 to move away from their connected ends towards the end of the circumferentially deformable flexible honeycomb structure 3. The other ends of support rods I104 and IV107 move closer to each other and towards the support shaft 101. Similarly, sliding support II103 drives support rod II105 and IV107 to move towards the other end of the support shaft 101. One end of strut III106 connected to it moves away from the end of the circumferentially deformable flexible honeycomb structure 3. The other ends of strut III106 and strut II105 move closer to each other and towards the support shaft 101. Through strut I104, strut II105, strut III106 and strut IV107, struts VII211 and VIII212 move closer to each other. At the same time, struts I203 and II204 move away from the ends of the support shaft 101, thereby changing the diameter of the wheel structure.

[0028] Similarly, when a larger diameter is needed, drive sliding support I 102 and sliding support II 103 to slide along the support shaft 101, so that sliding support I 102 and sliding support II 103 are close together.

[0029] It is important to understand that when support component 1 is provided, the connecting rod support I201 can still be used as a driving component. The connecting rod structure 2 is driven to move through the sliding connecting rod support I201, and the connecting rod structure 2 drives the circumferentially deformable flexible honeycomb structure 3 to move, thereby realizing the diameter change of the wheel structure. When the wheel structure changes diameter, the circumferentially deformable flexible honeycomb structure 3 drives the sliding support I102 and the sliding support II103 to slide along the support shaft 101 through support rod I104, support rod II105, support rod III106 and support rod IV107.

[0030] Specifically, support plates I108 and II109 are fixed on opposite sides of two adjacent circumferentially deformable flexible honeycomb structures 3, and the rods VII211 and VIII212 are respectively hinged to the support plates I108 and II109 of the two adjacent circumferentially deformable flexible honeycomb structures 3.

[0031] The support rods I104 and IV107 are respectively hinged to the support plates I108 and II109 of the two adjacent circumferentially deformable flexible honeycomb structures 3 via ball joints, and the support rods III106 and II105 are respectively hinged to the support plates I108 and II109 of the two adjacent circumferentially deformable flexible honeycomb structures 3 via ball joints.

[0032] Specifically, the end of the rod II 204 away from the connecting rod support II 202 is hinged to the connecting member II 206, and the end of the connecting member II 206 away from the rod II 204 is hinged to the rod III 207.

[0033] The end of the rod I203 away from the connecting rod support I201 is hinged to a connector I205, and the end of the connector I205 away from the rod I203 is hinged to the middle of the rod I210.

[0034] Specifically, a groove is provided on the axial direction of the circumferentially deformable flexible honeycomb structure 3 on the rod VIII212, and a connector III213 and a connector IV214 are slidably disposed in the groove. The ends of the rods IV208 and VI210 away from the rod VII211 are respectively hinged to the connectors III213 and IV214.

[0035] Specifically, the circumferentially deformable flexible honeycomb structure 3 includes a plurality of rhomboid honeycomb-shaped through holes A, the plurality of through holes A are arranged in rows, and multiple rows of through holes A are provided along the circumference of the circumferentially deformable flexible honeycomb structure 3.

[0036] Although embodiments of the invention have been shown and described, those skilled in the art will be able to make various changes, modifications, substitutions and alterations to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A variable diameter wheel structure, characterized in that: It includes a support shaft (101), multiple connecting rod structures (2) and multiple circumferentially deformable flexible honeycomb structures (3). The support shaft (101) is provided with connecting rod support I (201) and connecting rod support II (202) coaxial with the support shaft (101). Connecting rod support I (201) is slidably connected to the support shaft (101), and connecting rod support II (202) is fixedly connected to the support shaft (101). The circumferentially deformable flexible honeycomb structures (3) are fan-shaped. Multiple circumferentially deformable flexible honeycomb structures (3) are distributed circumferentially along the support shaft (101). A connecting rod structure (2) is provided between every two adjacent circumferentially deformable flexible honeycomb structures (3). The linkage structure (2) includes rod I (203), rod II (204), rod III (207), rod IV (208), rod V (209), rod VI (210), rod VII (211), and rod VIII (212). One end of rod IV (208) is hinged to one end of rod VII (211), and the other end of rod IV (208) is hinged to and slidably connected to rod VIII (212). One end of rod III (207) is hinged to one end of rod VIII (212), and the other end of rod III (207) is connected to the middle of rod IV (208). One end of rod II (204) is hinged, and the other end of rod II (204) is hinged to connecting rod support II (202). One end of rod VI (210) is hinged to the other end of rod VII (211). The other end of rod VI (210) is hinged to rod VIII (212) and slidably connected. One end of rod V (209) is hinged to the other end of rod VIII (212). The middle part of rod VI (210) is hinged to the other end of rod V (209) and one end of rod I (203). The other end of rod I (203) is hinged to connecting rod support I (201). The rods VII (211) and VIII (212) are respectively hinged to the opposite side of two adjacent circumferentially deformable flexible honeycomb structures (3); The rod VIII (212) has a groove along the axial direction of the circumferentially deformable flexible honeycomb structure (3). Connector III (213) and connector IV (214) are slidably arranged in the groove. The ends of rod IV (208) and rod VI (210) away from rod VII (211) are respectively hinged to connector III (213) and connector IV (214).

2. The variable diameter wheel structure according to claim 1, characterized in that: It also includes a support assembly (1), which includes sliding support I (102), sliding support II (103), support rod I (104), support rod II (105), support rod III (106), and support rod IV (107). Sliding support I (102) and sliding support II (103) are slidably connected to the support shaft (101), and both sliding support I (102) and sliding support II (103) are coaxial with the support shaft (101). Support rod I (104) and support rod IV (107) One end of each of the two supports is hinged to the sliding support I (102) via a ball joint. The other ends of the support rods I (104) and IV (107) are respectively hinged to the opposite ends of the two adjacent circumferentially deformable flexible honeycomb structures (3) via a ball joint. One end of the support rods II (105) and III (106) is hinged to the sliding support II (103) via a ball joint. The other ends of the support rods III (106) and II (105) are respectively hinged to the opposite ends of the two adjacent circumferentially deformable flexible honeycomb structures (3) via a ball joint.

3. The variable diameter wheel structure according to claim 2, characterized in that: Support plate I (108) and support plate II (109) are fixed on opposite sides of two adjacent circumferentially deformable flexible honeycomb structures (3), respectively. The rod VII (211) and rod VIII (212) are respectively hinged to support plate I (108) and support plate II (109) of the two adjacent circumferentially deformable flexible honeycomb structures (3). The support rod I (104) and support rod IV (107) are respectively connected to the support plate I (108) and support plate II (109) of the two adjacent circumferentially deformable flexible honeycomb structures (3) through ball joints. The support rod III (106) and support rod II (105) are respectively connected to the support plate I (108) and support plate II (109) of the two adjacent circumferentially deformable flexible honeycomb structures (3) through ball joints.

4. The variable diameter wheel structure according to claim 1, characterized in that: The end of the rod II (204) away from the connecting rod support II (202) is hinged to the connecting member II (206), and the end of the connecting member II (206) away from the rod II (204) is hinged to the rod III (207); The end of the rod I (203) away from the connecting rod support I (201) is hinged to the connecting member I (205), and the end of the connecting member I (205) away from the rod I (203) is hinged to the middle of the rod VI (210).

5. The variable diameter wheel structure according to claim 1, characterized in that: The circumferentially deformable flexible honeycomb structure (3) includes a plurality of rhomboid honeycomb through holes (A), and the plurality of through holes (A) are arranged in rows, with multiple rows of through holes (A) arranged along the circumference of the circumferentially deformable flexible honeycomb structure (3).

6. A variable diameter wheel structure according to claim 1 or 5, characterized in that: The circumferentially deformable flexible honeycomb structure (3) is made of spring steel.

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