Anti-collision mine non-pneumatic tire framework structure

Abstract

The utility model relates to the technical field of mine machinery tire, and disclose a kind of anti-collision mine non-pneumatic tire framework structure, including the hub of coaxial arrangement, inner ring support, outer ring support and buffer assembly, the inner ring support is fixedly sleeved in the outer circumferential side of hub, the outer ring support is sleeved in the outer side of inner ring support, and buffer gap is left between the inner ring support and outer ring support.The anti-collision mine non-pneumatic tire framework structure, by setting the combination structure of inner ring support, outer ring support and buffer assembly, the synergistic effect of buffer gap and buffer assembly is utilized, impact force is effectively absorbed, and the arc-shaped anti-collision protrusion of the outer periphery of outer ring support can disperse collision stress, avoid local excessive stress, greatly improve the anti-collision performance, to effectively reduce the collision damage risk of tire framework in mine harsh environment, prolong the service life of tire.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery tire technology, and in particular to a collision-resistant non-pneumatic tire skeleton structure for mining. Background Technology

[0002] Mining operations are harsh environments, with roads often containing obstacles such as gravel and protruding rocks. The tires used in mining machinery are easily damaged by collisions and impacts, leading to tire punctures and frame deformation, which affects service life and operational safety.

[0003] Regarding the above and existing related technologies, the inventors believe that the following defects often exist: existing non-pneumatic tire frames mostly adopt a single support structure, which has limited buffering and energy absorption effect. After a collision, local damage is likely to occur, and the overall load-bearing capacity will drop significantly after damage, making it difficult to meet the high-strength and high-safety requirements of mines. Utility Model Content

[0004] The technical problem to be solved by this utility model is that the existing technology has the disadvantages of poor buffering and energy absorption effect, easy local damage after collision and significant reduction in overall load-bearing capacity due to the use of a single support structure in the harsh working environment of mines. To this end, we propose a collision-proof non-pneumatic tire frame structure for mines.

[0005] To achieve the above objectives, this application adopts the following technical solution: a collision-resistant non-pneumatic tire frame structure for mining, comprising a hub, an inner ring support, an outer ring support, and a buffer assembly coaxially arranged. The inner ring support is fixedly sleeved on the outer periphery of the hub, and the outer ring support is sleeved on the outer side of the inner ring support, with a buffer gap between the inner ring support and the outer ring support. The buffer assembly is disposed within the buffer gap, and its two ends are fixedly connected to the outer peripheral wall of the inner ring support and the inner peripheral wall of the outer ring support, respectively. The outer periphery of the outer ring support is provided with anti-collision protrusions, which are spaced apart circumferentially along the outer ring support, and the cross-section of the anti-collision protrusions is arc-shaped.

[0006] Preferably, the buffer assembly includes multiple radial supports and multiple circumferential buffers. The multiple radial supports are evenly distributed along the circumference of the inner ring support. Each radial support includes two symmetrically arranged elastic support arms. One end of the two elastic support arms meets and is fixedly connected to the inner ring support, and the other end is fixedly connected to the inner circumferential wall of the outer ring support. A buffer cavity is formed between the two elastic support arms. The multiple circumferential buffers are distributed at intervals along the axial direction of the inner ring support. Each circumferential buffer is an annular airbag structure. The multiple circumferential buffers are sleeved on the outside of the multiple radial supports and are tightly fitted with the elastic support arms.

[0007] Preferably, the elastic support arm has a hollow cavity inside, which is filled with an elastic cushioning material, which is rubber granules.

[0008] Preferably, the outer peripheral wall of the inner ring support and the inner peripheral wall of the outer ring support are both provided with connecting grooves. The two ends of the buffer assembly are correspondingly embedded in the connecting grooves and are fixedly connected to the inner ring support and the outer ring support by bolts. The contact part between the buffer assembly and the connecting groove is provided with a wear-resistant pad.

[0009] Preferably, the anti-collision protrusion has internal reinforcing ribs that extend along the length of the anti-collision protrusion. The reinforcing ribs are made of high-strength alloy steel. The outer surface of the anti-collision protrusion is covered with a rubber buffer layer with a thickness of 3-8 mm.

[0010] Preferably, the annular airbag structure is filled with inert gas, and the outer surface of the annular airbag structure is provided with a wear-resistant coating.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] In this invention, by setting up a combined structure of inner ring support, outer ring support and buffer assembly, the buffer gap and buffer assembly work together to effectively absorb the impact force of the collision. At the same time, the arc-shaped anti-collision protrusion on the outer periphery of the outer ring support can disperse the collision stress, avoid excessive local stress, and greatly improve the anti-collision performance. This effectively reduces the risk of collision damage to the tire skeleton in the harsh environment of the mine and extends the service life of the tire. Attached Figure Description

[0013] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0014] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the buffer component structure of this utility model;

[0016] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 4 This is a schematic diagram of the internal structure of the anti-collision protrusion of this utility model.

[0018] Legend: 1. Wheel hub; 2. Inner ring support; 3. Outer ring support; 4. Buffer assembly; 5. Anti-collision protrusion; 6. Connecting groove; 7. Wear-resistant pad; 401. Radial support; 402. Circumferential buffer; 4011. Elastic support arm; 4012. Hollow cavity; 501. Reinforcing rib; 502. Rubber buffer layer. Detailed Implementation

[0019] Based on the technical solution of this utility model, without changing the essential spirit of this utility model, those skilled in the art can propose various interchangeable structural methods and implementation methods. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model, and should not be regarded as the entirety of this utility model or as a limitation or restriction of the technical solution of this utility model.

[0020] Reference Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a collision-resistant non-pneumatic tire frame structure for mining, including a hub 1, an inner ring support 2, an outer ring support 3, and a buffer assembly 4 arranged coaxially. The inner ring support 2 is fixedly sleeved on the outer periphery of the hub 1, and the outer ring support 3 is sleeved on the outer side of the inner ring support 2, with a buffer gap between the inner ring support 2 and the outer ring support 3. The buffer assembly 4 is disposed in the buffer gap, and both ends of the buffer assembly 4 are fixedly connected to the outer periphery of the inner ring support 2 and the inner periphery of the outer ring support 3, respectively. The outer periphery of the outer ring support 3 is provided with anti-collision protrusions 5, which are distributed at intervals along the circumference of the outer ring support 3, and the cross-section of the anti-collision protrusions 5 is arc-shaped.

[0021] Specifically: By setting up a combined structure of inner ring support 2, outer ring support 3 and buffer component 4, the buffer gap and buffer component 4 work together to effectively absorb the impact force of the collision. At the same time, the arc-shaped anti-collision protrusion 5 on the outer periphery of the outer ring support 3 can disperse the collision stress, avoid excessive local stress, and greatly improve the anti-collision performance, thereby effectively reducing the risk of collision damage to the tire skeleton in the harsh environment of the mine and extending the service life of the tire.

[0022] Reference Figure 1-4As shown in this embodiment: the buffer assembly 4 includes multiple radial support members 401 and multiple circumferential buffer members 402. The multiple radial support members 401 are evenly distributed along the circumference of the inner ring support member 2. Each radial support member 401 includes two symmetrically arranged elastic support arms 4011. One end of the two elastic support arms 4011 meets and is fixedly connected to the inner ring support member 2, and the other end is fixedly connected to the inner circumferential wall of the outer ring support member 3, and a buffer cavity is formed between the two elastic support arms 4011. The multiple circumferential buffer members 402 are distributed at intervals along the axial direction of the inner ring support member 2. Each circumferential buffer member 402 is an annular airbag structure. The multiple circumferential buffer members 402 are sleeved on the outside of the multiple radial support members 401 and are tightly fitted with the elastic support arms 4011. The elastic support arm 4011 has a hollow cavity 4012 inside, which is filled with elastic buffer material, which is rubber granules. The anti-collision protrusion 5 has a reinforcing rib 501 inside, which extends along the length of the anti-collision protrusion 5. The reinforcing rib 501 is made of high-strength alloy steel. The outer surface of the anti-collision protrusion 5 is covered with a rubber buffer layer 502, which has a thickness of 3-8mm. The outer peripheral wall of the inner ring support 2 and the inner peripheral wall of the outer ring support 3 are both provided with connecting grooves 6. The two ends of the buffer assembly 4 are correspondingly embedded in the connecting grooves 6 and are fixedly connected to the inner ring support 2 and the outer ring support 3 by bolts. The contact part between the buffer assembly 4 and the connecting groove 6 is provided with a wear-resistant pad 7.

[0023] Specifically: The buffer assembly 4 uses the elastic support arm 4011 of the radial support 401 and the circumferential buffer 402 to form a three-dimensional buffer system. When the tire is subjected to lateral or radial impact, the elastic support arm 4011 absorbs energy through its own deformation, the rubber particles in the hollow cavity 4012 further attenuate the impact force, and the annular airbag structure of the circumferential buffer 402 disperses stress through compression deformation. The three work together to achieve multi-directional buffering. The reinforcing rib 501 of the anti-collision protrusion 5 is made of high-strength alloy steel, which reduces weight while maintaining structural strength. Its arc-shaped cross-section design allows stress to be evenly transmitted along the curved surface during collision, avoiding stress concentration. The outer rubber buffer layer 502 absorbs residual impact force through elastic deformation. The thickness range of 3-8mm takes into account both buffering effect and wear resistance. The combination design of the connecting groove 6 and the wear-resistant pad 7 not only ensures the stable connection between the buffer assembly 4 and the support, but also reduces friction loss at the connection part through the wear-resistant pad 7, improving the reliability of the overall structure.

[0024] Reference Figure 2 As shown, in this embodiment: the interior of the annular airbag structure is filled with inert gas, and the outer surface of the annular airbag structure is provided with a wear-resistant coating;

[0025] Specifically: the inert gas filled inside the annular airbag structure maintains the airbag's elasticity while avoiding the risk of gas leakage, and the wear-resistant coating on the outer surface enhances the airbag's wear resistance, ensuring that it can maintain good cushioning performance during long-term use.

[0026] Working Principle: During mining operations, when a tire collides with obstacles such as gravel or protruding rocks, the anti-collision protrusion 5 on the outer periphery of the outer ring support 3 first contacts the obstacle. Its arc-shaped structure can evenly distribute the collision stress along the curved surface, avoiding excessive local stress. The reinforcing ribs 501 inside the anti-collision protrusion 5 are made of high-strength alloy steel to ensure structural strength. The rubber buffer layer 502 wrapped on the outer surface further absorbs the impact force through elastic deformation. The buffer assembly 4 then begins to function. The elastic support arms 4011 of multiple radial support members 401 deform under impact. The rubber particles filled in the hollow cavity 4012 inside further attenuate the impact force. The buffer cavity formed between two elastic support arms 4011 also provides space for deformation. Multiple radial support members 4011 are spaced apart along the axial direction of the inner ring support 2. The circumferential buffer 402, as an annular airbag structure, disperses stress through compression deformation and together with the radial support 401 forms a three-dimensional buffer system, effectively absorbing impact forces from different directions. The buffer gap between the inner ring support 2 and the outer ring support 3 provides the necessary space for the entire buffering process. The two ends of the buffer assembly 4 are embedded in the connecting grooves 6 on the inner ring support 2 and the outer ring support 3 and are fixed by bolts. The wear-resistant pads 7 set at the contact parts reduce friction loss at the connection parts, ensuring the stability and reliability of the structure. Through this series of buffering and energy absorption processes, the impact force on the tire carcass is greatly weakened, thereby effectively reducing the risk of collision damage to the tire carcass in the harsh mining environment, extending the service life of the tire, and improving the safety of mining operations.

[0027] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A collision-resistant non-pneumatic tire frame structure for mining, comprising a hub (1), an inner ring support (2), an outer ring support (3), and a buffer assembly (4) arranged coaxially, characterized in that: The inner ring support (2) is fixedly sleeved on the outer periphery of the hub (1), and the outer ring support (3) is sleeved on the outer side of the inner ring support (2). A buffer gap is left between the inner ring support (2) and the outer ring support (3). The buffer assembly (4) is set in the buffer gap. The two ends of the buffer assembly (4) are fixedly connected to the outer periphery of the inner ring support (2) and the inner periphery of the outer ring support (3), respectively. The outer periphery of the outer ring support (3) is provided with anti-collision protrusions (5). The anti-collision protrusions (5) are distributed at intervals along the circumference of the outer ring support (3). The cross section of the anti-collision protrusions (5) is arc-shaped.

2. The anti-collision non-pneumatic tire frame structure for mining according to claim 1, characterized in that: The buffer assembly (4) includes multiple radial support members (401) and multiple circumferential buffer members (402). The multiple radial support members (401) are evenly distributed along the circumference of the inner ring support member (2). Each radial support member (401) includes two symmetrically arranged elastic support arms (4011). One end of the two elastic support arms (4011) meets and is fixedly connected to the inner ring support member (2), and the other end is fixedly connected to the inner circumferential wall of the outer ring support member (3). A buffer cavity is formed between the two elastic support arms (4011). The multiple circumferential buffer members (402) are distributed at intervals along the axial direction of the inner ring support member (2). Each circumferential buffer member (402) is an annular airbag structure. The multiple circumferential buffer members (402) are sleeved on the outside of the multiple radial support members (401) and are tightly fitted with the elastic support arms (4011).

3. The anti-collision non-pneumatic tire frame structure for mining according to claim 2, characterized in that: The elastic support arm (4011) has a hollow cavity (4012) inside, and the hollow cavity (4012) is filled with an elastic buffer material, which is rubber particles.

4. The anti-collision non-pneumatic tire frame structure for mining according to claim 1, characterized in that: The outer peripheral wall of the inner ring support (2) and the inner peripheral wall of the outer ring support (3) are both provided with connecting grooves (6). The two ends of the buffer assembly (4) are correspondingly embedded in the connecting grooves (6) and are fixedly connected to the inner ring support (2) and the outer ring support (3) by bolts. The contact part between the buffer assembly (4) and the connecting groove (6) is provided with wear-resistant pads (7).

5. The anti-collision non-pneumatic tire frame structure for mining according to claim 1, characterized in that: The anti-collision protrusion (5) is provided with a reinforcing rib (501) inside. The reinforcing rib (501) extends along the length direction of the anti-collision protrusion (5). The material of the reinforcing rib (501) is high-strength alloy steel. The outer surface of the anti-collision protrusion (5) is covered with a rubber buffer layer (502). The thickness of the rubber buffer layer (502) is 3-8mm.

6. The anti-collision non-pneumatic tire frame structure for mining according to claim 2, characterized in that: The annular airbag structure is filled with inert gas, and the outer surface of the annular airbag structure is provided with a wear-resistant coating.

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