Tank laminate structure and its realization method

Abstract

The present invention relates to the technical field of tank laminates, and in particular to a tank laminate structure and a method for realizing the same. The technical solution includes: a wooden board, a fiber reinforcement layer and a wear-resistant rubber layer designed to be stacked in sequence, wherein the wooden board, the fiber reinforcement layer and the wear-resistant rubber layer are fixedly connected by heating and vulcanization, and a plurality of bosses are evenly distributed on the wear-resistant rubber layer, wherein the diameter of the bosses is 20-30 mm, and the height of the bosses is 2-10 mm, and steel screw sleeves are fixedly installed through the wooden board, the fiber reinforcement layer and the wear-resistant rubber layer, and the internal threads of the steel screw sleeves are installed on high-strength bolts connected to the bottom surface of the vehicle. The present invention prevents the tracked vehicle from damaging the bottom plate of the vehicle when it is on the transport vehicle, and prevents the tracked vehicle from shifting or even falling due to sudden braking or rapid starting during transportation, and effectively prevents the track from damaging the bottom plate of the transport vehicle.

Description

Technical Field

[0001] The present invention relates to the technical field of tank laminates, and in particular to a tank laminate structure and a method for realizing the same. Background Art

[0002] The crawler track is an important part of the vehicle chassis and a key component for the vehicle to travel. The crawler track is generally composed of a track plate and a track pin. To improve the grip, the pin protrudes from the track plate. Due to the heavy weight of the crawler vehicle and the sharp track pins, the bottom of the vehicle is seriously damaged during loading, unloading and transportation. In order to protect the bottom of the vehicle, a laminated plate for crawler vehicles is designed, and the manufacturing technology is studied and tested.

[0003] The main modes of transporting armored vehicles include air transport, sea transport, rail transport and tank transport vehicles. Compared with air transport and sea transport, land transport of tanks and armored vehicles is more flexible. The main modes of transport that can be adopted include track marching, rail transport and tank and armored vehicle transport vehicles. The track marching mode is only suitable for close adjustment of troops and weapons before tanks and armored vehicles enter the reserve position, and is not suitable for long-distance maneuvers. This is because there are the following problems when armored vehicles are marching on tracks: the speed is slow, the vehicle driving system and transmission system will accelerate wear, the technical condition will deteriorate sharply, the reliability of the vehicle will usually be greatly reduced, and it will often cause greater damage to the road surface, consume a lot of fuel, and the crew will be more tired, affecting the continuous combat capability of the troops. The use of rail transport to transport armored vehicles has a relatively fast transportation speed and loading quality is no longer a problem. In addition, my country has a relatively complete railway transportation network, which can better solve the problem of long-distance ground transportation of armored vehicles. The present invention is a device and implementation method for protecting the bottom surface of railway vehicles designed for long-distance railway transportation of armored vehicles. Summary of the invention

[0004] The purpose of the present invention is to address the problems existing in the background technology and to propose a tank laminate structure and a method for realizing the same.

[0005] On the one hand, the present invention proposes a tank laminate structure, comprising a wooden board, a fiber reinforcement layer and a wear-resistant rubber layer which are designed to be stacked in sequence, wherein the wooden board, the fiber reinforcement layer and the wear-resistant rubber layer are fixedly connected by heating and vulcanization, and a plurality of bosses are evenly distributed on the wear-resistant rubber layer, wherein the diameter of the bosses is 20-30 mm, and the height of the bosses is 2-10 mm, and steel screw sleeves are fixedly installed through the wooden board, the fiber reinforcement layer and the wear-resistant rubber layer, and the internal threads of the steel screw sleeves are installed on high-strength bolts connected to the bottom surface of the vehicle.

[0006] Optionally, the wooden board is made of larch, and is a square board with a length of 1500-1800 mm, a width of 400-600 mm, and a thickness of 40-60 mm.

[0007] Optionally, the fiber reinforcement layer is EP200 polyester fiber cloth, the number of layers is 4-6, and the fiber reinforcement layer is 1500-1800 mm long and 400-600 mm wide.

[0008] On the other hand, the present invention proposes a method for realizing a tank laminate structure based on the above-mentioned tank laminate structure. The wooden board is dried before processing to remove internal moisture. The drying temperature is 60-80°C and the time is 10-48 hours. The wooden board is then degreased and cleaned by brushing the surface of the wooden board with No. 120 solvent gasoline. After the surface of the wooden board is dried, it is polished with a steel brush to make the surface of the wooden board rough, and then an adhesive is applied to the surface of the wooden board.

[0009] Optionally, the surface of the steel screw sleeve is derusted and degreased.

[0010] Optionally, the fiber reinforcement layer needs to be dried first, the drying temperature is 80-100° C., and the drying time is 8-12 hours. After the fiber reinforcement layer is cooled, it is coated with a glue prepared with wear-resistant rubber twice.

[0011] Optionally, the formula of the wear-resistant rubber layer is mainly composed of rubber, carbon black reinforcement, vulcanizing agent and accelerator, the rubber refers to a mixture of one or more of natural rubber, chloroprene rubber, EPDM rubber and polyurethane rubber, the carbon black reinforcement is one or a combination of N330, N110, N762 and N550, the dosage is 30-60phr, the vulcanizing agent is a special vulcanizing agent for various rubbers, the dosage is 1.2-2.5phr, the accelerator is any one of M (2-mercaptobenzothiazole), DM (dibenzothiazyl disulfide), TMTD (tetramethylthiuram disulfide), CBS (N-cyclohexyl-2-benzothiazole sulfonamide), TBBS (N-tert-butyl-2-benzothiazole sulfonamide), the dosage of the accelerator is 0.2-2.5 parts per 100 parts by weight of rubber, and the accelerator NOBS is used in an amount of 1.2 parts.

[0012] Optionally, the rubber is preformed before vulcanization. In order to make the vulcanized product meet the drawings and technical requirements, the rubber before vulcanization needs to be preformed, the shape and dimensional tolerance of the semi-finished product are strictly controlled, and weighing confirmation is performed before molding.

[0013] Optionally, a non-isothermal vulcanization process is adopted, which includes a vulcanization hot plate, which includes an upper plate and a lower plate. The vulcanization hot plate is preheated to a set temperature, the temperature of the lower plate is 110-130°C, and the temperature of the upper plate is 140-170°C. The treated wooden board, fiber reinforcement layer and preformed wear-resistant rubber layer semi-finished product are placed in a vulcanization mold in sequence, and the mold is closed and pressurized. The vulcanization time is 60-100 minutes.

[0014] Optionally, the surface of the wooden board is treated with an anti-corrosion and moisture-proof treatment. After the vulcanized laminate is cooled down, the paraffin is heated and melted and evenly applied to the outer surface of the wooden board.

[0015] In summary, the present application includes at least the following beneficial technical effects:

[0016] The present invention manufactures a laminate for overall transport of a crawler vehicle by a surface treatment process of drying and dehydrating wood, degreasing and coating with an adhesive, and a method of co-vulcanizing the laminate with rubber and reinforcing fiber cloth placed in a mold. The surface of the laminate is provided with a uniformly distributed circular boss structure to increase friction resistance. In order to increase the convenience of connection with the chassis, a steel screw sleeve is prefabricated on the laminate, so that the laminate can effectively prevent the crawler vehicle from damaging the vehicle bottom plate when it is on the transport vehicle and the crawler vehicle from shifting or even falling due to emergency braking or rapid starting during transportation, thereby effectively preventing the crawler from damaging the transport vehicle bottom plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is the cross section of the laminate;

[0018] Figure 2 Schematic diagram of the surface structure of the wear-resistant rubber layer;

[0019] Figure 3 This is the track shoe adhesion friction Ft curve.

[0020] Figure numerals: 1. wooden board; 2. fiber reinforcement layer; 3. wear-resistant rubber layer; 4. steel screw sleeve; 5. boss. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0022] like Figure 1 , Figure 2 As shown, the present invention proposes a tank laminate structure, including a wood board 1, a fiber reinforcement layer 2 and a wear-resistant rubber layer 3 which are stacked in sequence. The wood board 1, the fiber reinforcement layer 2 and the wear-resistant rubber layer 3 are fixedly connected by heating and vulcanization. A plurality of bosses 5 are evenly distributed on the wear-resistant rubber layer 3. In this solution, the diameter of the boss 5 is 25 mm and the height is 5 mm. The size of the boss 5 is the result of orthogonal design of the pattern, simulation theoretical calculation and product trial production test. The wear-resistant rubber layer 3 covering the wood board 1 and the fiber reinforcement layer 2 not only protects the skeleton layer, but also the structure of the boss 5 covering the wear-resistant rubber layer 3 can effectively increase the friction resistance.

[0023] In this embodiment, according to the manufacturing process level, the structural design of the boss 5 covered on the wear-resistant rubber layer 3 is mainly to select and determine the parameters such as the style, width, height and groove distance of the boss 5. Combined with the design requirements of the boss 5 and the empirical formula, the width of the boss 5 is [12, 36.2], the groove distance of the boss 5 has a corresponding relationship with the width of the boss 5, and the height of the boss 5 is [0, 6]. After obtaining the value range of the structural parameters of the width of the boss 5 and the height of the boss 5, in order to determine the specific structural parameters of the width of the boss 5 on the pressure-bearing surface of the wear-resistant rubber layer 3, the height of the boss 5 and the shape of the boss 5, according to the 4 levels of the shape of the boss 5, the linear interpolation method is used for the two variables of the width (diameter) of the boss 5 and the height of the boss 5, and the 4 levels are also determined. Finally, three boss 5 parameter variables [width (diameter), height, shape] are obtained, and the structural parameters of the boss 5 with 4 levels for each variable are obtained.

[0024] According to the orthogonal design table, 16 pressure-bearing material structure models were established in ABAQUS. According to the calculation method of the maximum static friction coefficient between the track and the pressure-bearing surface of the armored equipment, the maximum static friction coefficient under 4 pressure values ​​was calculated for each group of structures by simulation, and then the equivalent maximum static friction coefficient was obtained by taking the average value. Finally, the maximum static friction coefficient corresponding to the boss 5 structure of the pressure-bearing surface of the wear-resistant rubber layer 3 was obtained. The influence of the boss 5 width, boss 5 height and boss 5 shape on the maximum static friction coefficient was analyzed by variance analysis, and the optimal boss 5 structure of the pressure-bearing surface of the wear-resistant rubber layer 3 was obtained according to the analysis results. The contact between the structure of the pressure-bearing surface of the wear-resistant rubber layer 3 and the track can achieve the maximum friction resistance, and this structure can withstand repeated rolling for many times.

[0025] A steel screw sleeve 4 is fixedly installed through the wood board 1, the fiber reinforcement layer 2 and the wear-resistant rubber layer 3, and the internal thread of the steel screw sleeve is installed on the high-strength bolt connected to the bottom of the vehicle. The laminate is fixedly connected to the bottom of the transport vehicle through the high-strength bolt, so that the track is located above the bottom plate of the vehicle to prevent the track from directly contacting the bottom of the vehicle. The laminate has the characteristics of high wear resistance, strong compressibility, high and low temperature resistance, tear resistance, and long-lasting performance.

[0026] The board 1 is made of larch, and is a square board with a length of 1620 mm, a width of 480 mm, and a thickness of 50 mm. The fiber reinforcement layer 2 is EP200 polyester fiber cloth, with 4-6 layers, and the fiber reinforcement layer 2 is 1620 mm long and 490 mm wide. The EP200 polyester fiber cloth is cut into a length of 1620 mm and a width of 490 mm. The polyester fiber cloth needs to be dried first, with a drying temperature of 80-100°C and a drying time of 8-12 hours. After the polyester fiber cloth is cooled, it is coated with a glue prepared with wear-resistant rubber twice.

[0027] On the other hand, the present invention proposes a method for realizing a tank laminate structure based on the above tank laminate structure, wherein a wooden board 1 is processed into a square board with a length of 1620 mm, a width of 480 mm, and a thickness of 50 mm. The wooden board 1 is dried before processing to remove internal moisture, the drying temperature is 60-80°C, and the time is 10-48 hours. Subsequently, the wooden board 1 is degreased and decontaminated, and the surface of the wooden board 1 is brushed with No. 120 solvent gasoline. After the surface of the wooden board 1 is dried, the surface of the wooden board 1 is polished with a steel brush to make the surface of the wooden board 1 rough, and then the wooden board 1 is coated with adhesive, first applying a primer 205 and then a surface glue 252X, the thicknesses of which are 10-15 μm respectively, and the thickness of the primer plus the surface glue is 15-30 μm.

[0028] The surface of the steel screw sleeve 4 is rust-removed and oil-removed and the rubber is mixed.

[0029] The rubber wear-resistant layer 3 is composed of natural rubber, N220, N330, cyclohexane oil, sulfur, accelerator NOBS, refined paraffin and antioxidant. The specific usage ratio of natural rubber, N220, N330, cyclohexane oil, sulfur, accelerator NOBS, refined paraffin and antioxidant is: 100:40:15:10:1.8:1.2:1.0:2.0, and the mixed rubber is made by a mixer.

[0030] Preforming of rubber: In order to make the vulcanized product meet the drawings and technical requirements, it is necessary to preform the rubber before vulcanization, strictly control the shape and dimensional tolerance of the semi-finished product, and weigh and confirm it before molding.

[0031] The non-isothermal vulcanization process is adopted, and the vulcanization hot plate is preheated to the set temperature, the lower plate temperature is 120℃, and the upper plate temperature is 155℃. The treated wood board 1, fiber reinforcement layer 2 and preformed wear-resistant rubber layer 3 semi-finished products are placed in the vulcanization mold in sequence, and the mold is quickly closed and pressurized. The vulcanization time is 80 minutes.

[0032] The surface of the wooden board 1 is treated with anti-corrosion and moisture-proof treatment. After the vulcanized product cools down, the paraffin is heated and melted, and a layer of paraffin is evenly applied on the exposed surface of the wooden board 1 with a brush.

[0033] Table 1 below is the experimental verification of the constitutive model of friction resistance between the track and the pressure-bearing material:

[0034] 1.1 Table 1 is a comparison table of simulation results and experimental results:

[0035]

[0036] 1.2 As Figure 3 The figure shows the track shoe adhesion friction Ft curve under the condition of Fn=35kN. The maximum static friction corresponds to the adhesion friction and the plowing force (unit: N).

[0037] 1.3 Table 2 is the calculation of friction coefficient between armored equipment tracks and pressure-bearing surfaces:

[0038]

[0039] 1.4 Table 3 shows the maximum static friction coefficients of 16 boss structures:

[0040]

[0041]

[0042] 1.5 Results ANOVA

[0043] According to the simulation test results obtained by orthogonal experimental design, the result data were processed and analyzed in 5 steps using variance analysis method, which can effectively distinguish the differences and errors between the results caused by changes in factor levels.

[0044] S1, calculate the sum of squares of deviations;

[0045] S2, calculation of degrees of freedom;

[0046] S3, calculate the average sum of squares of deviations;

[0047] S4, calculate the F value;

[0048] S5. Conduct significance test on each factor;

[0049] The results of the design variance analysis are shown in Table 4:

[0050]

[0051] The laminated board is composed of a wooden board 1, a fiber reinforcement layer 2 and a wear-resistant rubber layer 3, wherein the wear-resistant rubber layer 3 is mainly composed of natural rubber or synthetic rubber, a carbon black reinforcement agent, a vulcanizing agent and an accelerator. The laminated board for tracked vehicle transportation is manufactured by drying and dehumidifying the wooden board, polishing the surface, drying the polyester fiber cloth, removing oil and dirt, and applying a special adhesive, batching, mixing, and sheeting according to the rubber formula to prepare the mixed rubber, testing the performance of the mixed rubber, making blanks, and putting the wooden board, polyester fiber cloth and rubber into a special mold for co-vulcanization. The laminated board has the characteristics of high wear resistance, strong compressibility, high and low temperature resistance, tear resistance, and long-lasting performance. The rubber of the laminated board is well bonded to the wooden board, and the wear-resistant rubber hardness is 55-65 (Shore A), the tensile strength is greater than 20Mpa, and the elongation at break is greater than 400%.

[0052] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. Tank laminate structure, characterized in that, The invention comprises a wooden board (1), a fiber reinforcement layer (2) and a wear-resistant rubber layer (3) which are stacked in sequence, wherein the wooden board (1), the fiber reinforcement layer (2) and the wear-resistant rubber layer (3) are fixedly connected by means of heating and vulcanization, a plurality of bosses (5) are evenly distributed on the wear-resistant rubber layer (3), the diameter of the bosses (5) is 20-30 mm, and the height of the bosses (5) is 2-10 mm, and a steel screw sleeve (4) is fixedly installed through the wooden board (1), the fiber reinforcement layer (2) and the wear-resistant rubber layer (3), and the internal thread of the steel screw sleeve is installed on a high-strength bolt connected to the bottom surface of a vehicle.

2. The tank laminate structure according to claim 1, characterized in that: The wooden board (1) is made of larch and is a square board with a length of 1500-1800 mm, a width of 400-600 mm and a thickness of 40-60 mm.

3. The tank laminate structure according to claim 2, characterized in that: The fiber reinforcement layer (2) is EP200 polyester fiber cloth, with 4 to 6 layers. The fiber reinforcement layer (2) is 1500 to 1800 mm long and 400 to 600 mm wide.

4. A method for realizing the tank laminate structure according to any one of claims 1 to 3, characterized in that: include: The wooden board (1) is dried before processing to remove the internal moisture, the drying temperature is 60-80°C, and the drying time is 10-48 hours. The surface of the wooden board (1) is brushed with gasoline. After the surface of the wooden board (1) is dried, the surface of the wooden board (1) is polished with a steel brush to make the surface of the wooden board (1) rough, and then an adhesive is applied to the surface of the wooden board (1).

5. The method for realizing the tank laminate structure according to claim 4, characterized in that: The wear-resistant rubber layer (3) comprises a plurality of rubbers, wherein the rubber is one of natural rubber, chloroprene rubber, EPDM rubber, polyurethane rubber, or a mixture of multiple rubbers; The surface of the steel screw sleeve (4) is treated to remove rust and oil.

6. The method for realizing the tank laminate structure according to claim 5, characterized in that: The fiber reinforcement layer (2) is pre-dried at a temperature of 80-100° C. for 8-12 hours. After cooling, the fiber reinforcement layer (2) is coated with at least two coats of glue prepared with wear-resistant rubber.

7. The method for realizing the tank laminate structure according to claim 6, characterized in that: The formula of the wear-resistant rubber layer (3) further comprises a carbon black reinforcing agent, a vulcanizing agent and an accelerator, wherein the carbon black reinforcing agent is one of N330, N110, N762 and N550 or a combination of several thereof, and the accelerator is any one of 2-mercaptobenzothiazole, dibenzothiazole disulfide, tetramethylthiuram disulfide, N-cyclohexyl-2-benzothiazole sulfenamide and N-tert-butyl-2-benzothiazole sulfenamide, and the weight ratio of the carbon black reinforcing agent, the vulcanizing agent, the accelerator and the rubber is 30-60: 1.2-2.5：0.2-2.5：100。 8. The method for realizing the tank laminate structure according to claim 7, characterized in that: The rubber is subjected to a preforming treatment before vulcanization.

9. The method for realizing the tank laminate structure according to claim 8, characterized in that: A non-isothermal vulcanization process is adopted, which includes a vulcanization hot plate, wherein the vulcanization hot plate includes an upper plate and a lower plate, and the vulcanization hot plate is preheated to a set temperature, wherein the temperature of the lower plate is 110-130°C, and the temperature of the upper plate is 140-170°C. The processed wood board (1), the fiber reinforcement layer (2) and the preformed wear-resistant rubber layer (3) semi-finished products are sequentially placed in a vulcanization mold, and the mold is closed and pressurized, and the vulcanization time is 60-100 minutes.

10. The method for realizing the tank laminate structure according to claim 9, characterized in that: The surface of the wooden board (1) is treated for corrosion and moisture resistance. After the vulcanized laminate cools down, the paraffin is heated and melted and evenly applied to the outer surface of the wooden board (1).

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