Nanometer energy-absorbing ball distribution method of a vehicle stopper and nanometer energy-absorbing vehicle stopper

Abstract

The application discloses a kind of nanometer energy-absorbing ball distribution methods of vehicle stopper and nanometer energy-absorbing vehicle stopper, comprising the following steps: based on target vehicle, the design parameter of vehicle stopper is obtained;Different diameter nanometer energy-absorbing ball can bear pressure value is obtained;Based on the design parameter of vehicle stopper and different diameter nanometer energy-absorbing ball can bear pressure value, the number of different diameter nanometer energy-absorbing ball to be arranged is calculated;Based on the number of different diameter nanometer energy-absorbing ball to be arranged obtained, corresponding nanometer energy-absorbing ball is filled in the impact surface of group vehicle device.Makes the adaptability of nanometer energy-absorbing ball selection distribution and target vehicle higher, can give full play to the cushioning effect of nanometer energy-absorbing ball, improves the overall cushioning effect of vehicle stopper.

Description

Technical Field

[0001] This invention belongs to the field of vehicle deceleration technology, and relates to a method for distributing nano-energy-absorbing balls in a vehicle deceleration device and a nano-energy-absorbing vehicle deceleration device. Background Technology

[0002] Trackless rubber-tired vehicles, as trackless auxiliary transportation equipment, are vehicles that travel on rubber tires. They are a convenient auxiliary transportation method for transporting personnel, equipment, and materials in mines, and are characterized by speed, efficiency, flexibility, and strong adaptability. With the frequent accidents of transport vehicles in inclined shafts of mines in recent years, it is required that inclined shafts be equipped with complete and effective anti-runaway and runaway protection devices in accordance with regulations.

[0003] Existing mine car protection devices have poor buffering performance, making them prone to rigid impacts when stopping vehicles, thus failing to effectively guarantee the safety of vehicles and personnel. A patent with publication number CN216185146U, entitled "A Novel Mine Road Nanoscale Energy-Absorbing Vehicle Stopper," includes a vehicle stopper body comprising an internal cavity and a flexible material layer surrounding the internal cavity. The internal cavity is filled with nanoscale energy-absorbing balls. This patent, by filling the vehicle stopper body with nanoscale energy-absorbing balls, allows the nanoscale energy-absorbing material inside the balls to respond instantly to impact, absorbing a large amount of energy and stopping the vehicle. However, some problems still exist, such as: the vehicle stopper body has poor strength and is easily deformed and damaged under instantaneous huge impact, causing the nanoscale energy-absorbing balls to scatter, which is not conducive to achieving the vehicle stopping function and is not reusable; in addition, the nanoscale energy-absorbing balls that provide buffering are located inside the vehicle stopper body, which does not maximize the effect of the nanoscale energy-absorbing balls, and the vehicle stopping effect of the vehicle stopper still needs to be improved. Summary of the Invention

[0004] The purpose of this invention is to solve the problems in the prior art where the nano-energy-absorbing balls of the vehicle stopper cannot exert their maximum shock absorption effect, and the nano-energy-absorbing balls have low fixed stability and are easily deformed and damaged when subjected to instantaneous huge impact force, resulting in poor strength and poor vehicle stopping effect of the vehicle stopper, which is not conducive to repeated use. The invention provides a method for distributing nano-energy-absorbing balls in a vehicle stopper and a nano-energy-absorbing vehicle stopper.

[0005] To achieve the above objectives, the present invention employs the following technical solution:

[0006] A method for distributing nano-energy-absorbing spheres in a vehicle brake includes the following steps:

[0007] S1: Based on the target vehicle, obtain the design parameters of the vehicle stopper;

[0008] S2: Obtain the pressure values ​​that nano-energy-absorbing spheres of different diameters can withstand;

[0009] S3: Calculate the number of nano-energy-absorbing balls of different diameters to be arranged based on the design parameters of the vehicle stopper and the pressure values ​​that nano-energy-absorbing balls of different diameters can withstand;

[0010] S4: Based on the number of different diameter nano-energy-absorbing balls to be arranged, the corresponding nano-energy-absorbing balls are buried on the impact surface of the vehicle assembly unit.

[0011] A further improvement of the present invention is that:

[0012] In step S1, the design parameters of the vehicle stopper are obtained, including the design mass of the target vehicle, the design speed of the target vehicle, and the wheel width of the target vehicle.

[0013] Step S3 includes the following steps:

[0014] The number of nano-energy-absorbing spheres of different diameters to be arranged is calculated using the formula:

[0015]

[0016] Where m represents the design mass of the target vehicle; v represents the design speed of the target vehicle; n1, n2, and n3 represent the number of nano-energy-absorbing spheres of different diameters, respectively; k1, k2, and k3 represent the pressure that nano-energy-absorbing spheres of different diameters can withstand, respectively; l represents the maximum distance that the nano-energy-absorbing spheres protrude from the impact surface; and S represents the area of ​​the impact zone.

[0017] In step S4, the embedment depth of the nano-energy-absorbing sphere is 1 / 2 to 3 / 4 of the diameter of the nano-energy-absorbing sphere.

[0018] In step S4, the impact surface of the vehicle assembly device is an arc-shaped impact surface, and the arc radius R of the arc-shaped impact surface is greater than or equal to three times the radius R of the nano-energy absorption device.

[0019] In step S4, a nano-absorbing ball of the same diameter or at least two nano-energy-absorbing balls of different diameters are arranged on the impact surface of the vehicle stopper.

[0020] In step S4, when two types of nano-energy-absorbing balls with different diameters are used to arrange the impact surface of the vehicle stopper, the diameters of two adjacent nano-energy-absorbing balls are different.

[0021] In step S4, among two adjacent nano-energy-absorbing spheres of different diameters, the distance between the smaller diameter nano-energy-absorbing sphere and the impact surface is greater than or equal to 5 / 8 of the distance between the larger diameter nano-energy-absorbing sphere and the impact surface.

[0022] A nano-energy-absorbing vehicle stopper includes a nano-energy-absorbing ball obtained by any one of the methods according to the present invention, the nano-energy-absorbing ball being embedded in an impact surface, the nano-energy-absorbing ball protruding from the impact surface, the impact surface being located on one side of an elastic body.

[0023] Further improvements to this nano-energy-absorbing vehicle arrester are as follows:

[0024] The diameter of the nano-energy-absorbing spheres is 50mm-100mm.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] This invention discloses a method for distributing nano-energy-absorbing balls in a vehicle arrester. First, the design parameters of the vehicle arrester and the pressure values ​​of nano-energy-absorbing balls of different diameters are obtained. Through preliminary data collection, the number of nano-energy-absorbing balls of different diameters can be quickly determined, resulting in a higher compatibility between the selection and distribution of nano-energy-absorbing balls and the target vehicle. This fully utilizes the buffering and shock-absorbing effect of the nano-energy-absorbing balls, avoiding deformation and damage during impact due to poor compatibility. Simultaneously, the nano-energy-absorbing balls are embedded in the impact surface, providing a buffering effect and preventing them from scattering under impact. This improves the reusability of the vehicle arrester, strengthens the stability of the nano-energy-absorbing balls, and enhances the overall buffering effect of the vehicle arrester.

[0027] Furthermore, this invention calculates the embedding depth of the nano-energy-absorbing ball based on its diameter, enabling the nano-energy-absorbing ball to achieve both a buffering effect and ensure fixed stability.

[0028] Furthermore, in this invention, when two nano-energy-absorbing balls of different diameters are arranged, the diameters of two adjacent nano-energy-absorbing balls are different. When the two layers of nano-energy-absorbing balls buffer each other, the nano-energy-absorbing ball with the smaller diameter intervenes in time and works together with the nano-energy-absorbing ball with the larger diameter to buffer and reduce shock, thereby enhancing the vehicle blocking effect. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 The stress-strain curves of a 75mm diameter nano-energy-absorbing sphere during impact testing.

[0031] Figure 2 The stress-strain curves of a 55mm diameter nano-energy-absorbing sphere during impact testing.

[0032] Figure 3 This is a front view of a nano-energy-absorbing vehicle stopper with nano-energy-absorbing spheres of the same diameter as disclosed in an embodiment of the present invention.

[0033] Figure 4 This is a top view of a nano-energy-absorbing vehicle stopper with nano-energy-absorbing spheres of the same diameter as disclosed in an embodiment of the present invention.

[0034] Figure 5 This is a left view of a nano-energy-absorbing vehicle stopper with two nano-energy-absorbing spheres of different diameters as disclosed in an embodiment of the present invention.

[0035] Figure 6 This is a three-dimensional structural diagram of the support frame of the present invention.

[0036] Wherein: 1-elastic body; 11-arc-shaped contact surface; 2-nano-energy-absorbing sphere;

[0037] 3-Support frame; 31-Fixing part; 32-Horizontal bracket; 321-Base rod; 322-Base; 33-Upright rod; 34-Upright plate; 35-Upright stop; 36-Reinforcing rod; 37-Flat stop; 38-Transition connection part; Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0040] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0041] In the description of the embodiments of the present invention, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of the invention is in use, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0042] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0043] In the description of the embodiments of the present invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the present invention according to the specific circumstances.

[0044] The present invention will now be described in further detail with reference to the accompanying drawings:

[0045] This invention discloses a method for distributing nano-energy-absorbing spheres in a vehicle arrester, comprising the following steps:

[0046] Step 1: Based on the target mining truck, obtain the design parameters of the nano-energy-absorbing vehicle arrester.

[0047] The design parameters include: mine car design mass, mine car design speed, and wheel width;

[0048] Step 2: Collect parameters of nano-energy-absorbing spheres of different diameters, including the maximum pressure that different diameters and different embedment depths can withstand;

[0049] Step 3: Based on the parameters obtained in S1 and S2, use formula (1) to calculate the number of n1, n2 and n3 contained in the arc-shaped contact surface (11), and the design density of the nano-energy-absorbing ball (2) can be obtained.

[0050]

[0051] Where γ = 17-18, m is the design mass of the mine car (kg); v is the design speed of the mine car (m / s), where the mass and speed are under normal conditions with sufficient margin, m = safety factor × m0, the safety factor is greater than 1, and m0 is the maximum mass of the mine car (kg); n1, n2, and n3 are the number of nano-energy-absorbing balls of different diameters located in the impact zone; k1, k2, and k3 are the maximum pressure that nano-energy-absorbing balls of different diameters can withstand based on the burial depth (Pa); l is the maximum distance of the nano-energy-absorbing ball protruding from the arc-shaped contact surface 11 (m); and S is the area of ​​the impact zone, i.e., the tire width multiplied by the arc length of the impact zone (m). 2 .

[0052] Using the above formula helps to select the number and type of nano-energy-absorbing balls, thereby improving the vehicle-stopping effect of the vehicle stopper.

[0053] Step 4: After calculating the number of n1, n2, and n3 according to the above formula, uniformly arrange the nano-energy-absorbing spheres with the same design density within the designated area.

[0054] Furthermore, in this embodiment of the invention, when arranging the nano-energy-absorbing spheres, nano-energy-absorbing spheres of the same diameter can be arranged uniformly, or two or three nano-energy-absorbing spheres of different diameters can be arranged.

[0055] Furthermore, in this embodiment of the invention, when at least two nano-energy-absorbing spheres of different diameters are used, whether the smaller distance of the two adjacent nano-energy-absorbing spheres protruding from the impact surface accounts for no less than 5 / 8 of the larger distance, if so, the design meets the requirements; if not, the number of n1, n2 and n3 contained in the impact surface is further adjusted.

[0056] Furthermore, in this embodiment of the invention, when sorting nano-energy-absorbing spheres of different diameters, the sorting is based on the size of the diameter. After sorting, the relationship between two adjacent different diameters is as follows: if three different diameter nano-energy-absorbing spheres are selected, namely 24mm, 55mm and 75mm, after sorting, the adjacent different diameter of the 75mm diameter is 55, not 24, and so on.

[0057] Furthermore, in this embodiment of the invention, the impact surface is an arc-shaped structure, and the arc radius R of the impact surface is not less than 3 times the radius r of the maximum nano-energy-absorbing sphere.

[0058] This invention discloses a specific embodiment:

[0059] Step 1: Among the obtained design parameters, the design mass of the mine car is m = 6000 kg, the design speed of the mine car is 30 km / h, and the width of a single wheel is 300 mm. The vehicle in this embodiment has two wheels.

[0060] Step 2: Select nano-energy-absorbing spheres with diameters of 75 mm and 55 mm. The pressure-strain curves for the two nano-energy-absorbing spheres with different diameters are shown in the appendix. Figure 1 and attached Figure 2 ;

[0061] Step 3: Calculate the number of nano-energy-absorbing spheres with different diameters based on formula (1), where γ is 17.5.

[0062] The calculation results are as follows:

[0063] (1) Only 55mm diameter nano-energy-absorbing spheres are used.

[0064] When only 55mm diameter nano-energy-absorbing balls are used and the embedding depth is 1 / 2, the number of nano-energy-absorbing balls in the impact zone calculated by the above formula is at least 13. In accordance with the principle of cost saving, 13 nano-energy-absorbing balls with a diameter of 55mm are selected and evenly arranged in a set area. The set area is defined as follows: taking into account factors such as vehicle model and tire width, the change in contact position caused by the vehicle's displacement during the impact causes the impact zone to change. The size of the set area is 1.2 times that of the impact zone.

[0065] Through multiple impact tests, durability tests, and health checks of the vehicle stopper, the vehicle stopper was not damaged, and its vehicle stopping performance did not degrade after 1,000 impacts, demonstrating excellent reusability.

[0066] (2) Only 75mm diameter nano-energy-absorbing spheres are used.

[0067] When using 75mm diameter nano-energy-absorbing balls and a burial depth of 1 / 2, the number of nano-energy-absorbing balls is calculated using the above formula. The minimum number of nano-energy-absorbing balls in the impact zone is 12. In accordance with the principle of cost-saving, 12 nano-energy-absorbing balls with a diameter of 75mm are selected and evenly arranged in the designated area.

[0068] Through multiple impact tests, durability tests, and health checks of the vehicle stopper, the vehicle stopper was not damaged, and its vehicle stopping performance did not degrade after 1,000 impacts, demonstrating excellent reusability.

[0069] (3) Nano energy-absorbing spheres with a diameter of 75 mm and a diameter of 55 mm are arranged together.

[0070] When using nano-energy-absorbing spheres with diameters of 55mm and 75mm, and with a embedding depth of 1 / 2, the number of each type of nano-energy-absorbing sphere in the impact zone can be calculated using the following formula:

[0071] There are 6 nano-energy-absorbing spheres with a diameter of 75mm and 6 nano-energy-absorbing spheres with a diameter of 55mm.

[0072] Alternatively, there can be 5 nano-energy-absorbing spheres with a diameter of 75mm or 7 nano-energy-absorbing spheres with a diameter of 55mm.

[0073] In accordance with the principle of cost saving, five 75mm diameter nano-energy absorbing balls and seven 55mm diameter nano-energy absorbing balls were selected and evenly arranged in the designated area.

[0074] Through multiple impact tests, durability tests, and health checks of the vehicle stopper, the vehicle stopper was not damaged, and its vehicle stopping performance did not degrade after 1,000 impacts, demonstrating excellent reusability.

[0075] When using nano-energy absorbers with diameters of 55mm and 75mm, the embedding depth of the impact zone is calculated using the above formula and set as follows: the embedding depth of the 75mm diameter nano-energy absorber is 3 / 4, and the embedding depth of the 55mm diameter nano-energy absorber is 1 / 2. When the distance between the two adjacent nano-energy absorbers of different diameters (75mm and 55mm respectively) protruding from the arc-shaped contact surface 11 is 0.68, which is greater than 0.625 (i.e., 5 / 8). The smaller distance of 1 / 4 of 75mm is 18.75mm, and the larger distance of 1 / 2 of 55mm is 27.5mm. The number of the two types of nano-energy absorbers is 7 for the 75mm diameter and 8 for the 55mm diameter. The two types of nano-energy absorbers are evenly arranged within the set area.

[0076] Through multiple impact tests, durability tests, and health checks of the vehicle stopper, the vehicle stopper was not damaged, and its vehicle stopping performance did not degrade after 1,000 impacts, demonstrating excellent reusability.

[0077] See Figures 3 to 6 The present invention also discloses a nano energy-absorbing vehicle stopper, wherein the nano energy-absorbing balls in the nano energy-absorbing vehicle stopper are arranged according to the distribution method disclosed in the present invention, and the nano energy-absorbing balls 2 are distributed on the impact surface 11, which is located on one side of the elastic body 1.

[0078] Furthermore, in this embodiment of the invention, the elastic body 1 is cast using CPU (cast polyurethane elastomer).

[0079] Furthermore, in this embodiment of the invention, the nano-energy-absorbing ball 2 is composed of a non-wetting liquid encapsulated in TPU (thermoplastic polyurethane elastomer) and a molecular sieve. The non-wetting liquid is characterized by the phenomenon that, when a liquid comes into contact with a solid, it does not adhere to the solid surface or penetrate into the solid's interior. For this invention, the non-wetting liquid includes deionized water, lubricating oil, ethylene glycol, glycerol, sodium chloride, sodium carbonate, potassium chloride, potassium carbonate, sodium hexametaphosphate, cetyltrimethylammonium chloride powder, agar, dextrin, sodium carboxymethyl cellulose, and polyethylene. The mixture of pyrrolidone, the molecular sieve in this application is a nanoporous material, specifically one or more of nanoporous molecular sieves ZSM-5, ZSM-22, zeolite, silica, alumina, silica, activated carbon, titanium dioxide and carbon nanotubes. When the mine car collides with the car stopper, the mine car comes into contact with the nano energy-absorbing ball 2. The nano energy-absorbing ball 2 can absorb the impact force generated when the mine car collides, thereby reducing the problem of the reaction force acting on the mine car, thus reducing the damage to the mine car, and thus ensuring the service life of the mine car.

[0080] The specific structure of the nano-energy-absorbing vehicle stopper disclosed in the embodiments of the present invention includes:

[0081] Inside the elastic body 1, there is also a support frame 3. The structure of the impact surface 11 of the support frame 3 is an arc-shaped impact surface. The nano energy-absorbing ball 2 is fixed and protruded on the impact surface 11. The impact surface 11 is the surface that contacts the mine car and the car stopper. The arc-shaped impact surface is used to block the mine car. The trapezoidal design with a narrow top and a wide bottom is conducive to improving the stability of the car stopper and reducing the probability of rollover.

[0082] The support frame 3 includes a fixing part 31; a horizontal support 32; a bottom rod 321; a base 322; a vertical rod 33; a vertical plate 34; a vertical stop 35; a reinforcing rod 36; a flat stop 37; and a transition connection part 38.

[0083] The support frame 3 is provided. The elastic body 1 is a cast polyurethane elastomer, which is fixedly installed with the support frame 3 by molding. The support frame 3 includes a frame located inside the elastic body 1 and fixing parts that protrude from both ends of the elastic body 1.

[0084] Furthermore, the molding method of the nano-energy-absorbing vehicle stopper disclosed in this embodiment of the invention is as follows:

[0085] The specific molding method involves placing the support frame 3 inside the mold, injecting cast polyurethane into the mold, and embedding nano-energy-absorbing balls 2 at the arc-shaped contact surface 11 according to pre-requirements. After demolding, the vehicle stopper is obtained. By setting the support frame 3, the strength of the vehicle stopper body 1 is enhanced. At the same time, by embedding the nano-energy-absorbing balls 2 in a partially embedded manner at the arc-shaped contact surface 11 during molding, the buffering and shock absorption effect of the nano-energy-absorbing balls 2 can be fully utilized. At the same time, the functions of the nano-energy-absorbing balls 2 and the support frame 3 can be combined and applied to the vehicle stopper, so that the vehicle stopper can achieve a better vehicle stopping effect.

[0086] See appendix Figure 4 The support frame 3 includes a frame and transition connecting portions 38 located on both sides of the frame. The end of the transition connecting portion 38 away from the frame is fixedly connected to the fixing portion 31. The frame is offset parallel to the axes of the two fixing portions 31, and the offset direction is away from the impact surface. See [reference needed]. Figures 5 to 6 The axis h of the two fixed parts is specifically defined as the direction along the line connecting the two fixed parts 31 and located at the center of symmetry of the fixed parts 31. The parallel offset setting is defined as the length direction of the frame being parallel to the axis and offset relative to the axis in a direction away from the impact surface. This setting can make the side facing the impact have more elastic body 1, further improving the buffering and energy absorption effect of the vehicle stopper.

[0087] The frame includes two parallel uprights 34, and two crossbeams are installed between the two uprights 34. The length of the frame is 70%-80% of the length of the elastic body 1. The strength of the frame is enhanced by setting the ratio of the area enclosed by the uprights 34 and the crossbeams to the cross section.

[0088] Furthermore, in this embodiment of the invention, the upright plate 34 is shaped as a right trapezoid, and during molding, the hypotenuse of the right trapezoid corresponds to the arc-shaped contact surface 11 of the vehicle stopper. The fixing part 31 is provided with mounting holes for fixing the two ends of the vehicle stopper body 1.

[0089] Furthermore, in this embodiment of the invention, the two crossbeams are respectively a vertical stop 35 and a horizontal stop 37. The vertical stop 35 and the horizontal stop 37, together with the two vertical plates 34, form a buffer zone. This buffer zone corresponds to the arc-shaped contact surface 11 after molding. By setting the vertical stop 35 and the horizontal stop 37, together with the two vertical plates 34, a buffer zone is formed, which increases the strength of the support frame 3 and provides clearance space for the embedding of the nano energy-absorbing balls 2. At the same time, the polyurethane filled in the buffer zone during molding and the nano energy-absorbing balls 2 work together to greatly improve the vehicle blocking effect.

[0090] Furthermore, in this embodiment of the invention, both the upright portion 35 and the flat portion 37 are made of I-beams, with the web of the I-beam of the upright portion 35 being set in a vertical direction and the web of the I-beam of the flat portion 37 being set in a horizontal direction.

[0091] Furthermore, in this embodiment of the invention, a horizontal support 32 is installed at the bottom of the transition connection portion 38. The bottom of the horizontal support 32 includes a bottom rod 321 and a base 322. The base 322 can be a polygonal rod. See [reference needed]. Figure 5 The base 322 is fixedly connected to the bottom rod 321, which is either a polygonal plate or other shapes. The bottom rod 321 is fixedly connected to the bottom of the fixing part 31 through a vertical pole 33. By setting a horizontal bracket 32, the transition connection parts 38 on both sides are effectively supported, thereby improving the overall strength of the support frame 3 and enabling reuse.

[0092] Furthermore, in this embodiment of the invention, the bottom surface of the flat stop 37 is provided with at least two parallel reinforcing rods 36. The reinforcing rods 36 are arranged parallel to the bottom rod 321 of the horizontal support 32 and are located in the same plane as the base 322. At the same time, the axes of the bottom rod 321 and the reinforcing rods 36 are perpendicular to the axis of the vertical stop 35. Here, the axis of the vertical stop 35 extends along the length of the vertical stop 35. By setting the reinforcing rods 36 and their positional relationship with the horizontal support 32, the strength of the support frame 3 is further improved, the width of the bottom surface of the support frame 3 is increased, and the stability of the vehicle stop body 1 is improved.

[0093] See appendix Figure 3The arc-shaped contact surface 11 is an arc surface, and the arc radius R of the arc-shaped contact surface 11 is not less than 3 times the radius r of the largest nano-energy-absorbing ball 2, so as to prevent uneven resistance to vehicle impact due to the large diameter of the nano-energy-absorbing ball 2 and the small number of nano-energy-absorbing balls 2 when designing the vehicle stopper.

[0094] The nano-energy-absorbing balls 2 are evenly distributed on the impact area of ​​the arc-shaped contact surface 11. The impact area is the area where the two tires of the mining car contact the arc-shaped contact surface 11. The diameter of the nano-energy-absorbing balls 2 is 50-100mm. The embedding depth of the nano-energy-absorbing balls 2 is 1 / 2 to 3 / 4 of the diameter of the nano-energy-absorbing balls 2. The embedding depth can ensure a good combination between the nano-energy-absorbing balls 2 and the elastic body 1, and can also enable the nano-energy-absorbing balls 2 to expand within the elastic body 1 when impacted to improve the vehicle resistance effect.

[0095] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A method for distributing nano-energy-absorbing spheres in a vehicle arrester, characterized in that, Includes the following steps: S1: Based on the target vehicle, obtain the design parameters of the vehicle stopper; S2: Obtain the maximum pressure value that can be withstood by different diameters and different burial depths; S3: Calculate the number of nano-energy-absorbing balls of different diameters to be arranged based on the design parameters of the vehicle stopper and the maximum pressure that can be withstood by different diameters and different burial depths; S4: Based on the number of different diameter nano-energy-absorbing balls to be arranged, fill the corresponding nano-energy-absorbing balls into the impact surface of the vehicle assembly unit. Step S3 includes the following steps: The number of nano-energy-absorbing spheres of different diameters to be arranged is calculated using formula (1): Where m represents the design mass of the target vehicle; v represents the design speed of the target vehicle; n1, n2, and n3 represent the number of nano-energy-absorbing spheres of different diameters, respectively; k1, k2, and k3 represent the maximum pressure that nano-energy-absorbing spheres of different diameters can withstand based on the burial depth, respectively; and γ takes the value of 17-18. The value represents the maximum distance from which the nano-energy-absorbing sphere protrudes from the impact surface; S represents the area of ​​the impact zone.

2. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 1, characterized in that, In step S1, the design parameters of the vehicle stopper are obtained, including the design mass of the target vehicle, the design speed of the target vehicle, and the wheel width of the target vehicle.

3. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 1, characterized in that, In step S4, the embedment depth of the nano-energy-absorbing sphere is 1 / 2 to 3 / 4 of the diameter of the nano-energy-absorbing sphere.

4. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 1, characterized in that, In step S4, the impact surface of the vehicle assembly device is an arc-shaped impact surface, and the arc radius R of the arc-shaped impact surface is greater than or equal to three times the radius R of the nano-energy absorption device.

5. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 1, characterized in that, In step S4, a nano-absorbing ball of the same diameter or at least two nano-energy-absorbing balls of different diameters are arranged on the impact surface of the vehicle stopper.

6. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 5, characterized in that, In step S4, when two types of nano-energy-absorbing balls with different diameters are used to arrange the impact surface of the vehicle stopper, the diameters of two adjacent nano-energy-absorbing balls are different.

7. The method for distributing nano-energy-absorbing spheres in a vehicle arrester according to claim 6, characterized in that, In step S4, for two adjacent nano-energy-absorbing spheres of different diameters, it is determined whether the smaller distance of the two adjacent nano-energy-absorbing spheres protruding from the impact surface accounts for no less than 5 / 8 of the larger distance. If so, the design meets the requirements; if not, the number of n1, n2 and n3 contained in the impact surface is adjusted.

8. A nano-energy-absorbing vehicle braking device, characterized in that, The method includes a nano-energy-absorbing ball (2) obtained according to any one of claims 1-7, the nano-energy-absorbing ball (2) being embedded in the impact surface (11), the nano-energy-absorbing ball (2) protruding from the impact surface (11), the impact surface (11) being located on one side of the elastic body (1).

9. A nano-energy-absorbing vehicle arrester according to claim 8, characterized in that, The diameter of the nano-energy-absorbing ball (2) is 50 mm - 100 mm.

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