Energy-absorbing corrugated sheet and method for processing the same

Abstract

An energy-absorbing corrugated plate and a processing method thereof, the corrugated plate comprising a plurality of unit strips, each unit strip being composed of a plurality of unit bodies; the unit body adopts a circular-arc plate structure and the central angle of the circular-arc concave surface is 5°-175°; in the same unit strip, the joint angle between adjacent unit bodies is 180°, and the circular-arc concave surfaces of the adjacent unit bodies face each other in opposite directions; the joint angle between adjacent unit strips is 5°-175°, and the circular-arc concave surfaces of the unit bodies at the same position of the adjacent unit strips face each other in opposite directions. The processing method of the corrugated plate comprises five schemes, namely, stamping forming and combined welding of the unit bodies, one-time stamping forming of the whole energy-absorbing corrugated plate, one-time 3D printing forming of the whole energy-absorbing corrugated plate, one-time casting forming of the whole energy-absorbing corrugated plate, and cutting forming and combined welding of the unit bodies. The energy-absorbing corrugated plate has the characteristics of simple structure, simple manufacturing process and low manufacturing cost, and the load-carrying capacity can be accurately adjusted by adjusting the material, thickness and number of the unit bodies of the energy-absorbing corrugated plate.

Description

Technical Field

[0001] This invention belongs to the field of energy-absorbing buffer structure design technology, and in particular relates to an energy-absorbing corrugated plate and its processing method. Background Technology

[0002] Hydraulic energy-absorbing supports are currently the most important anti-rockburst support equipment in mines prone to rock bursts. The key to their energy-absorbing and anti-rockburst function lies in the specially designed energy-absorbing device in the support structure. Under support conditions, the energy-absorbing device bears the static load borne by the support. When the support is subjected to severe impact from the surrounding rock of the roadway, the energy-absorbing device must quickly move aside and weaken the impact load to prevent the impact load from exceeding the destructive load of the support structure. At the same time, it can also efficiently absorb the impact energy of the surrounding rock, preventing the impact kinetic energy of the surrounding rock from being accumulated in the support system and posing a safety hazard.

[0003] Currently, the energy-absorbing devices for anti-impact supports used in mines are mainly designed at the bottom of hydraulic columns, which greatly limits the space available for installation. Furthermore, it is necessary to consider the coordination with the pressure relief of the columns, resulting in extremely stringent technical requirements for the energy-absorbing devices. The design and manufacturing process is difficult, making it hard to promote and use widely. Due to the special nature of its location design, it is impossible to replace it on-site.

[0004] In addition, in the existing design of energy-absorbing buffer structures, the spatial structure of energy-absorbing components is becoming increasingly complex. Although the purpose of structural complexity is to better meet the energy absorption effect, structural complexity also brings difficulties to the manufacturing of energy-absorbing components. It not only increases the difficulty of manufacturing process and leads to a significant increase in manufacturing costs, but also makes it very difficult to adjust the load-bearing capacity of energy-absorbing components on the original basis. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides an energy-absorbing corrugated plate and its processing method. The energy-absorbing corrugated plate has the characteristics of simple structure, simple manufacturing process and low manufacturing cost. If you want to accurately adjust its load-bearing capacity on the original basis, you only need to adjust the material, thickness and quantity of the energy-absorbing corrugated plate unit to meet the requirements.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an energy-absorbing corrugated plate comprising several unit strips, each unit strip being composed of several unit bodies; the unit body adopts an arc plate structure, the central angle of the arc concave surface of the unit body being 5° to 175°; within the same unit strip, the splicing angle between adjacent unit bodies is 180°, and the arc concave surfaces of adjacent unit bodies face opposite directions; the splicing angle between adjacent unit strips is 5° to 175°, and the arc concave surfaces of unit bodies at the same position on adjacent unit strips face opposite directions.

[0007] The processing methods for the energy-absorbing corrugated plate include five schemes: ① unit stamping and welding; ② one-time stamping of the entire energy-absorbing corrugated plate; ③ one-time 3D printing of the entire energy-absorbing corrugated plate; ④ one-time casting of the entire energy-absorbing corrugated plate; ⑤ unit cutting and welding.

[0008] When the energy-absorbing corrugated plate is processed by unit stamping and welding, it is necessary to first prepare matching unit stamping dies and unit stamping punches, then use the unit stamping dies and unit stamping punches to stamp the flat plate into unit strips, and then splice several unit strips together by welding to prepare the energy-absorbing corrugated plate.

[0009] When the energy-absorbing corrugated plate is processed by integral one-time stamping, it is necessary to first prepare matching corrugated plate integral stamping die and corrugated plate integral stamping punch, and then use the corrugated plate integral stamping die and corrugated plate integral stamping punch to directly stamp the flat plate into an energy-absorbing corrugated plate.

[0010] When the energy-absorbing corrugated plate is manufactured using a one-time 3D printing process, a 3D printer needs to be prepared first, and then the energy-absorbing corrugated plate is prepared by printing the entire plate in one go using the 3D printer.

[0011] When the energy-absorbing corrugated plate is processed by integral one-time casting, it is necessary to first prepare an integral molding mold for the corrugated plate, and then use the integral molding mold to cast and prepare the energy-absorbing corrugated plate in one go.

[0012] When the energy-absorbing corrugated plate is processed by unit cutting and welding, it is necessary to first prepare a cylindrical tube, then cut unit bodies from the cylindrical tube, then splice several unit bodies into unit strips by welding, and then splice several unit strips into an energy-absorbing corrugated plate by welding.

[0013] The beneficial effects of this invention are:

[0014] The present invention relates to an energy-absorbing corrugated plate and its processing method. The energy-absorbing corrugated plate has the characteristics of simple structure, simple manufacturing process and low manufacturing cost. If you want to accurately adjust its load-bearing capacity on the original basis, you only need to adjust the material, thickness and quantity of the energy-absorbing corrugated plate unit to meet the requirements. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the energy-absorbing corrugated plate of the present invention;

[0016] Figure 2 This is a schematic diagram of the structure of the unit strip of the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the unit body of the present invention;

[0018] Figure 4 This is a schematic diagram of the structure of a unit-type stamping die;

[0019] Figure 5 This is a schematic diagram of the structure of a unit-type stamping punch;

[0020] Figure 6 This is a schematic diagram showing the unit stamping die and unit stamping punch in the closed position.

[0021] Figure 7 A schematic diagram of the integral stamping die for corrugated plates;

[0022] Figure 8 A schematic diagram of the integral stamping punch for corrugated plates;

[0023] Figure 9 This is a schematic diagram showing the corrugated plate integral stamping die and the corrugated plate integral stamping punch in the mold closing position.

[0024] Figure 10 This is a structural schematic diagram of a cylindrical tube;

[0025] In the figure, 1—unit strip, 2—unit body, 3—energy-absorbing corrugated plate, 4—unit body stamping die, 5—unit body stamping punch, 6—corrugated plate integral stamping die, 7—corrugated plate integral stamping punch, 8—cylindrical pipe. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figures 1-3 As shown, an energy-absorbing corrugated plate includes several unit strips 1, each unit strip 1 being composed of several unit bodies 2; the unit body 2 adopts an arc plate structure, and the central angle of the arc concave surface of the unit body 2 is 5° to 175°; within the same unit strip 1, the splicing angle between adjacent unit bodies 2 is 180°, and the arc concave surfaces of adjacent unit bodies 2 face opposite directions; the splicing angle between adjacent unit strips 1 is 5° to 175°, and the arc concave surfaces of unit bodies 2 at the same position of adjacent unit strips 1 face opposite directions.

[0028] The processing methods for the energy-absorbing corrugated plate include five schemes: ① unit stamping and welding; ② one-time stamping of the entire energy-absorbing corrugated plate; ③ one-time 3D printing of the entire energy-absorbing corrugated plate; ④ one-time casting of the entire energy-absorbing corrugated plate; ⑤ unit cutting and welding.

[0029] When the energy-absorbing corrugated plate 3 is processed using a unit stamping and assembly welding method, it is necessary to prepare the matching components first. Figure 4The unit stamping die 4 shown is... Figure 5 The unit stamping punch 5 shown is as follows: Figure 6 As shown, the flat sheet is stamped into unit strips 1 using unit stamping die 4 and unit stamping punch 5, and then several unit strips 1 are spliced ​​together by welding to prepare an energy-absorbing corrugated plate 3.

[0030] When the energy-absorbing corrugated plate 3 is manufactured using a one-piece stamping process, it is necessary to prepare the matching parts first. Figure 7 The corrugated plate integral stamping die 6 shown is... Figure 8 The corrugated plate integral stamping punch 7 shown is as follows: Figure 9 As shown, the flat sheet material is directly stamped into an energy-absorbing corrugated sheet 3 using the corrugated sheet integral stamping die 6 and the corrugated sheet integral stamping punch 7.

[0031] When the energy-absorbing corrugated plate 3 is manufactured by integral one-time 3D printing, a 3D printer needs to be prepared first, and then the energy-absorbing corrugated plate 3 is prepared by integral one-time printing using the 3D printer.

[0032] When the energy-absorbing corrugated plate 3 is processed by integral one-time casting, it is necessary to first prepare an integral corrugated plate forming mold, and then use the integral corrugated plate forming mold to cast and prepare the energy-absorbing corrugated plate 3 in one go.

[0033] When the energy-absorbing corrugated plate 3 is processed using a unit-body cutting and assembly welding method, it is necessary to first prepare Figure 10 The cylindrical tube 8 shown is used to cut out unit bodies 2 from the cylindrical tube 8. Then, several unit bodies 2 are spliced ​​together by welding to form unit strips 1. Then, several unit strips 1 are spliced ​​together by welding to form an energy-absorbing corrugated plate 3.

[0034] When it is necessary to precisely adjust the load-bearing capacity of the energy-absorbing corrugated plate 3 on the original basis, the requirements can be met simply by adjusting the material, thickness and quantity of the unit 2.

[0035] The solutions described in the embodiments are not intended to limit the scope of patent protection of this invention. All equivalent implementations or modifications that do not depart from the scope of this invention are included in the patent scope of this case.

Claims

1. An energy-absorbing corrugated plate, characterized in that: It comprises several unit strips, each unit strip being composed of several unit bodies; the unit bodies adopt an arc plate structure, and the central angle of the arc concave surface of the unit body is 5° to 175°; within the same unit strip, the splicing angle between adjacent unit bodies is 180°, and the arc concave surfaces of adjacent unit bodies face opposite directions; the splicing angle between adjacent unit strips is 5° to 175°, and the arc concave surfaces of unit bodies at the same position on adjacent unit strips face opposite directions; The processing methods for the energy-absorbing corrugated plate include five schemes: ① unit stamping and welding; ② one-time stamping of the entire energy-absorbing corrugated plate; ③ one-time 3D printing of the entire energy-absorbing corrugated plate; ④ one-time casting of the entire energy-absorbing corrugated plate; ⑤ unit cutting and welding. When the energy-absorbing corrugated plate is processed by unit stamping and combination welding, it is necessary to first prepare matching unit stamping dies and unit stamping punches, then use the unit stamping dies and unit stamping punches to stamp the flat plate into unit strips, and then splice several unit strips together by welding to prepare an energy-absorbing corrugated plate. When the energy-absorbing corrugated plate is processed by integral one-time stamping, it is necessary to first prepare the matching corrugated plate integral stamping die and corrugated plate integral stamping punch, and then use the corrugated plate integral stamping die and corrugated plate integral stamping punch to directly stamp the flat plate into an energy-absorbing corrugated plate. When the energy-absorbing corrugated plate is manufactured by one-time 3D printing, a 3D printer needs to be prepared first, and then the energy-absorbing corrugated plate is prepared by printing the entire plate in one go using the 3D printer. When the energy-absorbing corrugated plate is processed by integral one-time casting, it is necessary to first prepare an integral molding mold for the corrugated plate, and then use the integral molding mold to cast and prepare the energy-absorbing corrugated plate in one go. When the energy-absorbing corrugated plate is processed by unit cutting and welding, it is necessary to first prepare a cylindrical tube, then cut unit bodies from the cylindrical tube, then splice several unit bodies into unit strips by welding, and then splice several unit strips into an energy-absorbing corrugated plate by welding.

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