A cast nylon u-shaped column cap for mine and a manufacturing method thereof

Abstract

The present application belongs to the technical field of mine supporting materials, and particularly relates to a mine cast nylon U-shaped column cap and a manufacturing method thereof, comprising: a nylon block, a U-shaped slot for supporting a steel beam is formed on the nylon block, an anti-skid part is arranged in the U-shaped slot, and a splicing part for butt joint with a supporting stand is arranged at the bottom of the nylon block. The nylon material can make the whole have corrosion resistance, lightness, flame retardance, wear resistance and other characteristics, and the installation and removal process is simple and fast, which can significantly improve the mining efficiency.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mine supporting materials, and particularly relates to a mine cast nylon U-shaped column cap and a manufacturing method. BACKGROUND

[0002] Traditional supporting materials for mine tunnels, such as wood and steel, can meet the supporting requirements of mines to some extent, but still have many shortcomings in actual application. For example, wood supporting materials are prone to damp and rot, and have a short service life; steel supporting materials have high strength, but are heavy, prone to rust, and cause great environmental pollution. In addition, traditional supporting materials have certain difficulties in installation and disassembly, which affects the mining efficiency of mines.

[0003] Traditional supporting materials have certain shortcomings in terms of corrosion resistance, lightness and service life. Therefore, the application provides a mine cast nylon U-shaped column cap and a manufacturing method to solve the above problems. SUMMARY

[0004] The application aims to provide a mine cast nylon U-shaped column cap and a manufacturing method to solve the above problems.

[0005] To achieve the above-mentioned purpose, the application provides the following solutions.

[0006] A mine cast nylon U-shaped column cap comprises a nylon block, a U-shaped slot for supporting a steel beam is formed in the nylon block, an anti-skid part is arranged in the U-shaped slot, and a splicing part for connecting with a supporting column is arranged at the bottom of the nylon block.

[0007] Preferably, the anti-skid part comprises a plurality of anti-skid strips, and the anti-skid strips are fixed to the inner wall of the U-shaped slot.

[0008] Preferably, the plurality of anti-skid strips are arranged at equal intervals along the inclined surface of the inner wall of the U-shaped slot.

[0009] Preferably, the anti-skid strip is provided with two anti-skid strips.

[0010] Preferably, the splicing part comprises a plurality of insertion installation holes, the plurality of insertion installation holes are arranged at the bottom of the nylon block in a surrounding manner, and a connecting groove is arranged at the center of the bottom of the nylon block.

[0011] Preferably, the nylon block is in a cubic structure or a cylindrical structure.

[0012] Preferably, a water leakage hole is formed at the bottom of the U-shaped slot, and the water leakage hole is in communication with the connecting groove.

[0013] A manufacturing method of a mine cast nylon U-shaped column cap is based on the above-mentioned mine cast nylon U-shaped column cap, and comprises the following steps:

[0014] Step one, open the mold;

[0015] Step two, preparation of the casting material;

[0016] Step three, heating and melting;

[0017] Step four, temperature reduction reaction;

[0018] Step five, casting;

[0019] Step six, polishing.

[0020] Preferably, in step four, the molten casting material is placed in the reactor for reaction, and then placed in a 150℃ storage tank for 2 hours.

[0021] Compared with the prior art, the present application has the following advantages and technical effects:

[0022] In use, after the support columns are erected, the nylon blocks are installed on the top of each support column through the splicing part, and then the steel beams are placed in the U-shaped grooves of the nylon blocks, the steel beams are supported by the U-shaped grooves, the anti-skid parts in the U-shaped grooves can increase the friction between the steel beams and the side walls to prevent the steel beams from slipping, the nylon material can make the whole have corrosion resistance, lightness, flame retardance, wear resistance and other characteristics, and the installation and removal process is simple and fast, which can significantly improve the mining efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings:

[0024] Figure 1 Structure diagram of the present application;

[0025] Figure 2 Another angle structure diagram of the present application;

[0026] Figure 3 Structure diagram of the column cap with water leakage hole of the present application;

[0027] Figure 4 Structure diagram of embodiment 5 of the present application;

[0028] Wherein, 1, nylon block; 2, U-shaped slot; 3, anti-skid bar; 4, insertion mounting hole; 5, butt joint groove; 6, water leakage hole; 7, metal support; 8, hexagonal nut; 9, lead screw; 10, nylon jacking plate. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more apparent and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] Embodiment 1:

[0032] Reference Figures 1 to 3 The embodiment discloses a mine cast nylon U-shaped column cap, comprising: a nylon block 1, a U-shaped slot 2 for supporting a steel beam is formed on the nylon block 1, an anti-skid part is arranged in the U-shaped slot 2, and a splicing part for butt joint with a support column is arranged at the bottom of the nylon block 1.

[0033] In use, after each support column is erected, the nylon block 1 is installed on the top of each support column through the splicing part, and then the steel beam is placed in each U-shaped slot 2 of the nylon block 1, and the steel beam is supported by each U-shaped slot 2, the anti-skid part arranged in the U-shaped slot 2 can increase the friction between the steel beam and the side wall to prevent the steel beam from slipping, and the nylon material can make the whole have the characteristics of corrosion resistance, lightness, flame retardance and wear resistance, and the installation and removal process is simple and fast, which can significantly improve the mining efficiency.

[0034] Further optimization scheme, the anti-skid part includes a plurality of anti-skid bars 3, and the anti-skid bars 3 are fixedly connected to the inner wall of the U-shaped slot 2.

[0035] The anti-skid bars 3 and the nylon block 1 adopt an integral molding structure, and the anti-skid bars 3 can effectively prevent the steel beam from slipping.

[0036] Further optimization scheme, the plurality of anti-skid bars 3 are arranged at equal intervals along the inclined surface of the inner wall of the U-shaped slot 2.

[0037] Further optimization scheme, the anti-skid bars 3 are provided with two.

[0038] Further optimization scheme, the splicing part includes a plurality of insertion mounting holes 4, the plurality of insertion mounting holes 4 are arranged at the bottom of the nylon block 1 in a surrounding manner, and a butt joint groove 5 is arranged at the center of the bottom of the nylon block 1.

[0039] The docking groove 5 is used for docking with the top of the support column, so that the top of the support column can extend into the docking groove 5, and the top of the support column is provided with a plurality of insertion pins corresponding to the insertion mounting holes 4. After the insertion pins are inserted into the insertion mounting holes 4, the nylon block 1 can be prevented from moving horizontally relative to the support column, and under the action of the gravity of the steel beam, the support column and the nylon block 1 are combined firmly, so that the installation and disassembly of the nylon block 1 are simple and fast.

[0040] Further optimization scheme, the nylon block 1 is a cubic structure or a cylindrical structure.

[0041] Further optimization scheme, the bottom of the U-shaped slot 2 is provided with a water leakage hole 6, and the water leakage hole 6 is communicated with the docking groove 5.

[0042] The steel beam is a U-shaped structure matched with the structure of the U-shaped slot 2, and the groove of the steel beam is provided with a drainage hole. The water generated in the mine hole is discharged through the drainage hole of the steel beam, and part of the water can move to the support column along the bottom of the steel beam through the water leakage hole 6, and flow to the ground along the support column, thereby reducing the pressure caused by water accumulation on the steel beam.

[0043] Embodiment 2:

[0044] The embodiment provides a manufacturing method of a mine cast nylon U-shaped column cap, based on the above-mentioned mine cast nylon U-shaped column cap, comprising the following steps:

[0045] Step one, mold opening;

[0046] According to the structure design of the above-mentioned mine cast nylon U-shaped column cap, the mold is designed;

[0047] Step two, material preparation;

[0048] Select high-quality caprolactam raw materials to ensure good corrosion resistance, lightness and wear resistance. At the same time, the mold is prepared, and the design of the mold should be customized according to the actual support requirements of the mine to ensure that the size and structure of the U-shaped column cap meet the requirements;

[0049] Step three, heating and melting;

[0050] Put the raw material caprolactam into the heating equipment and heat it to the molten state. Ensure that the heating temperature and time are properly controlled to avoid degradation or discoloration of the nylon material;

[0051] Step four, temperature reduction reaction;

[0052] Step five, casting and forming;

[0053] The molten caprolactam material after the reaction is poured into a pre-designed mold. During the casting process, care should be taken to control the casting speed and flow rate to ensure that the material can fully fill every corner of the mold; after the material cools and solidifies, the mining-grade cast nylon U-shaped column cap is obtained.

[0054] Step 6: Polishing.

[0055] The formed U-shaped column caps undergo quality inspection to ensure their dimensions and structure meet requirements. Appropriate trimming and polishing can be used to ensure dimensional accuracy. Finally, the column caps are cleaned and dried for subsequent use.

[0056] To further optimize the scheme, in step four, the molten casting material is placed in a reaction vessel for reaction, and then placed in a 150°C storage tank for heat preservation for 2 hours.

[0057] Example 3:

[0058] This embodiment provides a method for installing and removing a cast nylon U-shaped column cap for mining:

[0059] (1) Installation: Place the cast nylon U-shaped column cap provided by the invention at the appropriate position on the mine support column. Connect it to the support column by inserting it into the mounting hole 4, ensuring a firm and reliable connection. If necessary, use appropriate fasteners for reinforcement to improve the support effect.

[0060] (2) Removal: When it is necessary to remove the column cap, simply pull the column cap off the support column. Due to the simple installation method, the disassembly process is also simple and quick. The disassembled column cap can be cleaned and maintained for future reuse or recycling.

[0061] Example 4:

[0062] This embodiment provides an environmentally friendly treatment method for cast nylon U-shaped column caps used in mining:

[0063] (1) Recycling: After the mine support work is completed, the used cast nylon U-shaped column caps for mining shall be recycled. During the recycling process, attention should be paid to classifying and cleaning the column caps to ensure the quality and purity of the recycled materials.

[0064] (2) Processing: The recycled nylon material is processed appropriately, such as crushing, washing and drying. The processed material can be used as a renewable resource to manufacture new mining cast nylon U-shaped caps or other related products.

[0065] Example 5:

[0066] refer to Figure 4The difference between this embodiment and embodiment 1 is that a metal bracket 7 is nested inside the nylon block 1, the metal bracket 7 is structurally matched with the nylon block 1, and the nylon block 1 and the metal bracket 7 are fixedly connected; the insertion mounting hole 4 is set through the bottom of the metal bracket 7, and a hexagonal nut 8 is rotatably connected to the center of the bottom of the metal bracket 7. One end of the screw 9 is internally threaded to the hexagonal nut 8, and the other end of the screw 9 is rotatably connected to a nylon lifting plate 10. The nylon lifting plate 10 is movably set at the bottom of the U-shaped slot 2.

[0067] To reduce production costs, the nylon block 1 is cast into a hollow structure, and a metal bracket 7 is embedded in the hollow structure. The metal bracket 7 and the nylon block 1 jointly bear the pressure. The tensile strength and yield strength of the metal bracket 7 should meet the pressure requirements. If necessary, reinforcing ribs can be fixed in the metal bracket 7.

[0068] Due to differences in product tolerances and local pressure, the deformation degree of each nylon block 1 may vary, which may cause the steel beam to fail to remain level or the gap between it and the U-shaped slot 2 of the supporting nylon block 1 to be too large. After the steel beam is erected, the screw 9 is raised or lowered by rotating the hexagonal nut 8 under the action of the thread, and the nylon lifting plate 10 is adjusted to support the bottom of the steel beam, so as to adjust the level of the steel beam, avoid poor contact between the bottom of the steel beam and the bottom of the U-shaped slot 2, and prevent the pressure of the steel beam from failing to be properly transmitted to the support column, thereby improving safety.

[0069] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to 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 this invention.

[0070] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A casting nylon U-shaped column cap for mining, characterized in that, include: Nylon block (1), with a U-shaped slot (2) for supporting the steel beam on the nylon block (1), and an anti-slip part in the U-shaped slot (2), and a splicing part at the bottom of the nylon block (1) for connecting with the support column. When in use, after each support column is erected, the nylon block (1) is installed on the top of each support column through the splicing part. Then, the steel beam is placed in the U-shaped slot (2) of each nylon block (1). The steel beam is supported by each U-shaped slot (2). The anti-slip part set in the U-shaped slot (2) can increase the friction between the steel beam and the side wall to prevent the steel beam from slipping. The use of nylon material can make it have corrosion resistance, lightness, flame retardancy and wear resistance. The anti-slip part includes several anti-slip strips (3), which are fixed to the inner wall of the U-shaped groove (2); the anti-slip strips (3) and the nylon block (1) adopt an integral molding structure, and the anti-slip strips (3) can effectively prevent the steel beam from slipping. Several anti-slip strips (3) are evenly spaced along the inner wall slope of the U-shaped groove (2); the splicing part includes several insertion mounting holes (4), several insertion mounting holes (4) are arranged around the bottom of the nylon block (1), and the bottom center of the nylon block (1) is provided with a mating groove (5); The docking groove (5) is used to dock with the top of the support column, so that the top of the support column can be inserted into the docking groove (5). The top of the support column is provided with several insertion bolts, which correspond one-to-one with the insertion installation holes (4). When the insertion bolt is inserted into the insertion installation hole (4), it can prevent the nylon block (1) from moving horizontally relative to the support column. Under the action of the gravity of the steel beam, the support column and the nylon block (1) are firmly connected, making the installation and disassembly of the nylon block (1) simple and quick. A metal bracket (7) is nested inside the nylon block (1). The metal bracket (7) matches the structure of the nylon block (1). The nylon block (1) and the metal bracket (7) are fixedly connected. An insertion mounting hole (4) is set through the bottom of the metal bracket (7). A hexagonal nut (8) is rotatably connected to the center of the bottom of the metal bracket (7). One end of a screw rod (9) is connected to the internal thread of the hexagonal nut (8). The other end of the screw rod (9) is rotatably connected to a nylon lifting plate (10). The nylon lifting plate (10) is movably set at the bottom of the U-shaped slot (2). The nylon block (1) is cast into a hollow structure, and a metal bracket (7) is embedded in the hollow structure. The metal bracket (7) and the nylon block (1) jointly bear the pressure. The tensile strength and yield strength of the metal bracket (7) should meet the pressure bearing requirements. Reinforcing ribs are fixed in the metal bracket (7). After the steel beam is erected, the screw rod (9) is raised or lowered by rotating the hexagonal nut (8) under the action of the thread, and the nylon lifting plate (10) is adjusted to support the bottom of the steel beam so as to adjust the level of the steel beam. The manufacturing method of the above-mentioned casting nylon U-shaped column cap for mining includes: Step 1: Mold making; Design the mold according to the structure of the above-mentioned casting nylon U-shaped column cap for mining; Step 2: Preparation of casting materials; Select high-quality caprolactam raw materials to ensure good corrosion resistance, lightness and wear resistance; at the same time, prepare the molds. The design of the molds should be customized according to the actual support needs of the mine to ensure that the size and structure of the U-shaped column caps meet the requirements. Step 3: Heating and melting; Place the virgin caprolactam material into the heating equipment and heat it to a molten state; Ensure proper control of heating temperature and time to avoid degradation or discoloration of the nylon material; Step 4: Cooling reaction; Place the molten casting material in the reaction vessel to react, and then place it in a 150℃ storage tank for 2 hours to keep it warm. Step 5: Casting and Molding; Pour the molten caprolactam material after the reaction into the pre-designed mold; During the casting process, attention should be paid to controlling the casting speed and flow rate to ensure that the material can fully fill every corner of the mold; After the material cools and solidifies, the mining cast nylon U-shaped column cap can be obtained; Step Six: Grinding; Conduct a quality inspection on the formed U-shaped column cap to ensure that its dimensions and structure meet the requirements; It can be properly trimmed and ground to meet the dimensional specifications; Finally, the column cap is cleaned and dried for subsequent use.

2. The casting nylon U-shaped column cap for mining as described in claim 1, characterized in that: The nylon block (1) has a cubic or cylindrical structure.

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