Manufacturing method of hydraulic support single base and split base

Abstract

The present application relates to the technical field of coal mining, and more particularly to a manufacturing method of a single base of a hydraulic support and a split base. In the manufacturing process of the single base, the same positioning reference is selected to ensure the consistency of the reference. Meanwhile, a bridge plate connecting seat positioning hole and a bridge plate lug positioning hole are additionally provided on the single base to provide positioning references for the bridge plate connecting seat and the bridge plate lug. The single base is machined with the same reference to process the column socket core positioning hole and the two newly added holes to ensure the consistency among the holes. The same positioning reference is selected for multiple single bases to further ensure the consistency of the hinge parts among the multiple single bases. The difficulty in installation caused by the poor consistency of the hinge parts of the single bases is avoided. The phenomenon of "stepping" between the two single bases assembled together in the subsequent use process is avoided. The adaptability of the hydraulic support to complex geological conditions is improved. The stability and safety of the support are ensured.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and in particular to a method for manufacturing a single base of a hydraulic support and a split base. Background Technology

[0002] The base, as a crucial component of the hydraulic support, forms the foundation of the entire hydraulic support structure's stability and plays a vital role throughout its operation. Its primary function is to transfer the pressure from the working face's roof to the base, balance the horizontal and torsional forces transmitted by the connecting rods, ensure the support's stability, provide installation space for the columns, control system, pushing device, and other auxiliary equipment, create a comfortable working environment for personnel, and also serve a certain purpose in clearing and blocking debris. Split bases typically consist of left and right parts, offering strong adaptability to uneven base surfaces. They can be connected together using hinges, plugs, or bolts to form a complete base structure. Traditionally, the left and right bases are fabricated separately, and the hydraulic support assembly relies on designed assembly gaps to compensate for positioning differences and welding deformations during construction. However, the top beam and shield beam of this type of hydraulic support are usually integral structures. It is necessary to ensure that the hinge holes between the base and the connecting rods, as well as the connecting parts between the left and right bases, are dimensionally consistent to ensure correct, secure, and reliable connections between all parts without jamming, and that the hydraulic support is subjected to uniform stress as designed during underground operation. In past production practices, due to insufficient consideration of the consistency of positioning references during the manufacturing process of the left and right bases, poor consistency of the hinge joints of the two bases is easily caused during the assembly of the hydraulic support, making installation difficult or resulting in a "stepping" phenomenon, which affects the normal operation of the entire hydraulic support.

[0003] Therefore, there is an urgent need for a manufacturing method that can ensure that the left and right bases maintain full consistency after the split base is installed. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides a method for manufacturing a single base of a hydraulic support and a split base, which solves the technical problems of poor consistency of the hinge part between the two single bases during the assembly of traditional split bases, difficulty in installation, and easy occurrence of back-and-forth "stepping" phenomenon during subsequent use.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by the present invention include:

[0008] On one hand, the present invention provides a method for manufacturing a single base of a hydraulic support, specifically including the following steps:

[0009] S1: Machin the bottom surface and front surface of the inner main stiffening plate and the outer main stiffening plate respectively to meet the flatness requirements, and use the bottom surface as the X-direction reference surface and the front surface as the Y-direction reference surface respectively.

[0010] S2: Using the X-axis reference plane and the Y-axis reference plane as references, position and machine the column socket positioning hole, the bridge plate connecting seat positioning hole and the bridge plate ear seat positioning hole on the inner main stiffener plate.

[0011] Position and machine another column socket positioning hole on the outer main stiffening plate of the single base, which has the same position and size as the column socket positioning hole on the inner main stiffening plate.

[0012] S3: Based on the position of the column socket positioning hole on the inner main stiffening plate and the outer main stiffening plate and the X-direction reference plane, respectively, the limiting connecting seat and the column pressure plate ear plate are positioned and fixed on the inner main stiffening plate and the outer main stiffening plate.

[0013] S4: Based on the positions of the positioning holes of the bridge plate connecting seat and the bridge plate ear seat, position and fix the bridge plate connecting seat and the bridge plate ear seat on the inner main stiffener plate;

[0014] S5: Place the inner main stiffening plate and the outer main stiffening plate parallel to each other on both sides of the base plate, ensuring that the bottom surfaces of the inner main stiffening plate and the outer main stiffening plate are in contact with the upper surface of the base plate, and then fix the three together to form the main structure of the single base.

[0015] S6: Based on the positions of the two column socket positioning holes, position and fix the base column socket on the base plate;

[0016] S7: Based on the positions of the two column socket positioning holes and the X-axis reference plane, precision machine the connecting rod hinge holes on the inner main stiffening plate and the outer main stiffening plate.

[0017] Optionally, in step S1, the flatness requirement for the X-axis reference plane and the Y-axis reference plane is within the range of ±0.2mm to ±0.5mm.

[0018] Optionally, in step S2, tooling can be used to assist in the completion;

[0019] The tooling has X and Y references that match the X-axis and Y-axis reference planes, as well as a first hole, a second hole, and a third hole. The dimensions of the first hole, the second hole, and the third hole, and their positional relationship with the X and Y references, are the same as the dimensions of the column socket positioning hole, the bridge plate connecting seat positioning hole, and the bridge plate ear seat positioning hole, and their positional relationship with the X and Y reference planes.

[0020] In use, align the X and Y reference points of tooling one with the X and Y reference surfaces simultaneously, and then attach the inner and outer main stiffening plates one after the other. Based on the position and size of the first, second, and third holes, position and machine the column recess positioning hole, the bridge plate connecting seat positioning hole, and the bridge plate ear seat positioning hole on the inner main stiffening plate. Based on the position and size of the first hole, position and machine another column recess positioning hole on the outer main stiffening plate.

[0021] Optionally, in step S3, tooling two can be used to assist in the completion;

[0022] Tooling 2 includes: a reference stepped positioning shaft, an L-shaped positioning plate, an ear plate positioning shaft, and a vertical positioning plate;

[0023] One end of the reference stepped positioning shaft is a small shaft section that matches the size of the positioning hole in the column socket, and the other end is a large shaft section that matches the size of the mounting groove of the limit connection seat.

[0024] The L-shaped positioning plate has a groove at one end that matches the large shaft section of the reference stepped positioning shaft, and a first through hole at the other end that matches the ear plate positioning shaft.

[0025] The ear plate positioning axis is a light axis that matches the size of the mounting hole of the ear plate of the column pressure plate;

[0026] The upper end of the vertical positioning plate has a second through hole of the same size as the first through hole, and the lower end is fixedly connected to two horizontally parallel positioning pins;

[0027] In use, insert the small section of the reference stepped positioning shaft into the core positioning hole of the column socket, and the groove of the L-shaped positioning plate abuts against the large section of the reference stepped positioning shaft. At the same time, let the upper ends of the outer peripheral walls of the two positioning pins abut against the bottom surface of the main stiffening plate. Then, insert the ear plate positioning shaft into the first through hole, the second through hole and the mounting hole of the column pressure plate ear plate in sequence. Based on the limiting connection seat of tooling two, install the limiting connection seat and the column pressure plate ear plate.

[0028] Optionally, in step S4, tooling 3 is used to complete the task;

[0029] Tooling 3 includes: a first-step positioning shaft, a second-step positioning shaft, and a transverse positioning shaft;

[0030] One end of the first-step positioning shaft is a small shaft section that matches the size of the positioning hole of the bridge plate connecting seat, and the other end is a large shaft section that matches the size of the U-shaped groove bottom of the bridge plate connecting seat.

[0031] The second-step positioning shaft has a small shaft section at one end that matches the size of the positioning hole of the bridge plate ear seat, and a large shaft section at the other end that matches the size of the mounting groove of the bridge plate ear seat.

[0032] The transverse positioning axis is an optical axis that matches the size of the positioning holes on the side wall of the bridge plate connecting seat and the side wall of the bridge plate ear seat;

[0033] In use, insert the small shaft segments of the first and second step positioning shafts into the positioning holes of the bridge plate connecting seat and the bridge plate ear seat, respectively. Secure the bottom of the U-shaped groove of the bridge plate connecting seat onto the large shaft segment of the first step positioning shaft, and secure the bridge plate ear seat onto the large shaft segment of the second step positioning shaft. Then, place the transverse positioning shaft parallel to the X-axis reference plane and pass through the positioning holes on the side wall of the bridge plate connecting seat and the side wall of the bridge plate ear seat in sequence. Based on the limiting position of tooling three, install the bridge plate connecting seat and the bridge plate ear seat.

[0034] Optionally, in step S6, tooling four is used to complete the task;

[0035] Tooling 4 includes: a sector-shaped positioning plate and a long positioning shaft;

[0036] The fan-shaped area of ​​the fan-shaped positioning plate matches the shape of the recess on the base column, and a third through hole is provided near the center of the fan-shaped circle for the long positioning shaft to pass through.

[0037] The long positioning axis is an optical axis that matches the size of the positioning hole in the column socket;

[0038] In use, the long positioning shaft is passed through the column socket positioning hole, the third through hole and the column socket positioning hole on the outer main stiffener plate in sequence, and the fan-shaped positioning plate is placed in the middle of the two column socket positioning holes. The base column socket is installed based on the position of the fan-shaped area at the bottom of the fan-shaped positioning plate.

[0039] Optionally, in step S7, a long positioning axis can be used to assist in the completion;

[0040] The long positioning axis is an optical axis that matches the size of the positioning hole in the column socket;

[0041] In use, the long positioning shaft is passed through the two column recess positioning holes in sequence, and the lower plane of the single base plate is aligned with the worktable of the digital display boring machine. The connecting rod hinge hole is then precision machined based on the long positioning shaft and the X-axis reference plane.

[0042] On the other hand, the present invention provides a split base comprising two single bases manufactured using any of the above-described manufacturing methods and two semi-circular bridge plates.

[0043] Of the two single bases, one is the left base and the other is the right base;

[0044] One bridge plate is detachably connected to the bridge plate connecting seat on the left and right bases respectively on its left and right sides, and the other bridge plate is detachably connected to the bridge plate ear seat on the left and right bases respectively on its left and right sides, with the semi-circular opening of the bridge plate facing downwards when connected.

[0045] Optionally, the bridge plate is connected to the bridge plate connecting seat and the bridge plate ear seat by a hinged pin.

[0046] Optionally, the hole on the bridge plate that connects to the hinge pin is a vertical elongated hole.

[0047] (III) Beneficial Effects

[0048] The beneficial effects of this invention are:

[0049] The present invention discloses a method for manufacturing a single base of a hydraulic support and a split base. On the one hand, during the manufacturing process of the single base, the same X-axis and Y-axis reference planes are first selected to ensure the consistency of the reference planes. At the same time, a positioning hole for the bridge plate connecting seat and a positioning hole for the bridge plate ear seat are added to the single base to provide a positioning reference for the bridge plate connecting seat and the bridge plate ear seat. The same reference plane is used to simultaneously process the column recess positioning hole and the two newly added positioning holes to ensure the consistency of each positioning hole on the single base. Furthermore, selecting the same positioning reference for multiple single bases can further ensure the consistency of the hinge parts between multiple single bases.

[0050] On the other hand, the two single bases with good consistency manufactured using the above method are assembled using a bridge plate, that is, the left base and the right base are assembled. Since the manufacturing error in the early stage is very small, there will be no problem of assembly difficulty. The assembled split bases will not have the phenomenon of "stepping" back and forth due to poor consistency during subsequent use, thereby improving the adaptability of the hydraulic support to complex geological conditions and ensuring the stability and safety of the support. Attached Figure Description

[0051] Figure 1 This is a schematic diagram of a hydraulic support structure;

[0052] Figure 2 This is a flowchart of Embodiment 1 of a method for manufacturing a single base of a hydraulic support according to the present invention;

[0053] Figure 3 for Figure 2 Top view of the single-layer base;

[0054] Figure 4 for Figure 2 A cross-sectional view of the base of the single-layer steel plate;

[0055] Figure 5 for Figure 3 Schematic diagram of the outer side of the inner main stiffening plate of the single-base plate;

[0056] Figure 6 for Figure 3 Design drawing of the inner main stiffening plate of the single-base plate;

[0057] Figure 7 for Figure 3Actual machining drawing of the main stiffening plate of the single-base base;

[0058] Figure 8 for Figure 3 A schematic diagram of tooling 1 used in the main stiffening plate (tooling 1 is represented by solid lines, and the other parts are represented by dashed lines);

[0059] Figure 9 for Figure 3 A schematic diagram of tooling two used in the main stiffening plate (tooling two is represented by solid lines, and the other parts are represented by dashed lines);

[0060] Figure 10 for Figure 3 A schematic diagram of tooling three used in the main stiffening plate (tooling three is represented by solid lines, and the other parts are represented by dashed lines);

[0061] Figure 11 for Figure 3 The base of the middle unit uses the sectional view of tooling four (where tooling four is represented by solid lines and the other parts are represented by dashed lines);

[0062] Figure 12 for Figure 3 The top view of fixture 4 is used for the single base (where fixture 4 is represented by solid lines and the other parts are represented by dashed lines);

[0063] Figure 13 for Figure 3 A sectional view of the single-base unit using a long positioning axis;

[0064] Figure 14 for Figure 3 The top view of the single base using the long positioning axis (where the long positioning axis is represented by a solid line, and the other parts are represented by a dotted line);

[0065] Figure 15 This is a top view of a second embodiment of a split base according to the present invention;

[0066] Figure 16 for Figure 13 Left view of the split base;

[0067] Figure 17 for Figure 13 A schematic diagram of the bridge plate in the split base.

[0068] [Explanation of Labels in the Attached Image]

[0069] 1: Single base; 2: X-axis reference plane; 3: Y-axis reference plane; 4: Inner main stiffening plate; 5: Outer main stiffening plate; 6: Column socket positioning hole; 7: Bridge plate connecting seat positioning hole; 8: Bridge plate ear seat positioning hole; 9: Limiting connecting seat; 10: Column pressure plate ear plate; 11: Bridge plate connecting seat; 12: Bridge plate ear seat; 13: Base column socket; 14: Connecting rod hinge hole; 15: Bridge plate; 16: Oblong hole; 17: Hinge pin; 18: Base plate;

[0070] 20: Top beam; 30: Protective beam; 40: Connecting rod; 50: Column; 60: Push rod; 70: Left base; 80: Right base;

[0071] 100: Tooling 1; 101: X datum; 102: Y datum; 103: First hole; 104: Second hole; 105: Third hole; 106: Drill bushing;

[0072] 200: Tooling 2; 201: Reference stepped positioning shaft; 202: L-shaped positioning plate; 203: Ear plate positioning shaft; 204: Vertical positioning plate; 205: Positioning pin;

[0073] 300: Tooling 3; 301: First-step positioning axis; 302: Second-step positioning axis; 303: Lateral positioning axis;

[0074] 400: Tooling 4; 401: Sector-shaped positioning plate; 402: Long positioning shaft. Detailed Implementation

[0075] To better explain and facilitate understanding of the present invention, a detailed description of the invention is provided below with reference to the accompanying drawings and specific embodiments. In this document, directional terms such as "up," "down," "left," and "right" are used interchangeably. Figure 1 The orientation is used as a reference.

[0076] The present invention proposes a method for manufacturing a single base of a hydraulic support and a split base. On the one hand, during the manufacturing process of the single base, the same X-axis and Y-axis reference planes are first selected to ensure the consistency of the reference. At the same time, positioning holes for the bridge plate connecting seat and the bridge plate ear seat are added to the single base to provide positioning references for the bridge plate connecting seat and the bridge plate ear seat. The column recess positioning hole and the two newly added positioning holes are machined simultaneously with the same reference plane to ensure the consistency of each positioning hole on the single base. Furthermore, selecting the same positioning reference for multiple single bases can further ensure the consistency of the hinge parts between multiple single bases.

[0077] On the other hand, the two single bases with good consistency manufactured using the above method are assembled using a bridge plate, that is, the left base and the right base are assembled. Since the manufacturing error in the early stage is very small, there will be no problem of assembly difficulty. The assembled split bases will not have the phenomenon of "stepping" back and forth due to poor consistency during subsequent use, thereby improving the adaptability of the hydraulic support to complex geological conditions and ensuring the stability and safety of the support.

[0078] To better understand the above technical solutions, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present invention can be understood more clearly and thoroughly, and that the scope of the present invention can be fully conveyed to those skilled in the art.

[0079] Example 1:

[0080] Reference Figure 1 This is a structural diagram of a hydraulic support. The main components of the hydraulic support include: a top beam 20, a protective beam 30, a connecting rod 40, a column 50, a push rod 60, and a split base. The split base is a complete base formed by connecting a left base 70 (i.e., a single base 1) and a right base 80 (i.e., another single base 1). The split base is one of the most important components of the entire hydraulic support. Its main function is to transfer the pressure from the top plate of the working face to the bottom plate and to balance the horizontal and torsional forces transmitted by the connecting rod 40, ensuring the stability of the support. It connects with multiple components, serving as a crucial link between them. Since the movement of each component requires coordination, the consistency of the mounting holes, positioning holes, and mounting seats on the split base is a vital prerequisite for the normal operation of the entire hydraulic support. Meanwhile, the left base 70 and the right base 80 of the hydraulic support split base are mirror images of each other. They are manufactured in the same way. The only difference is that the positions of the inner main stiffening plate 4 and the outer main stiffening plate 5 of the two bases are opposite during the manufacturing process. Therefore, the manufacturing method of the hydraulic support single base described below can be used when manufacturing the left base 70 and the right base 80.

[0081] Reference Figures 2 to 7 The manufacturing method of a single base for a hydraulic support proposed in this embodiment specifically includes the following steps:

[0082] S1: Machin the bottom surface and front surface of the inner main stiffening plate 4 and the outer main stiffening plate 5 respectively to meet the flatness requirements, and take the bottom surface as the X-direction reference surface 2 and the front surface as the Y-direction reference surface 3 respectively.

[0083] S2: Using the X-direction reference plane 2 and the Y-direction reference plane 3 as references, position and machine the column socket positioning hole 6, the bridge plate connecting seat positioning hole 7 and the bridge plate ear seat positioning hole 8 on the inner main stiffening plate 4. Position and machine another column socket positioning hole 6 on the outer main stiffening plate 5 with the same position and size as the column socket positioning hole 6 of the inner main stiffening plate 4.

[0084] S3: Based on the positions of the two column socket positioning holes 6 and the X-direction reference plane 2, the limiting connecting seat 9 and the column pressure plate ear plate 10 are respectively positioned and fixed on the inner main stiffening plate 4 and the outer main stiffening plate 5.

[0085] S4: Based on the positions of the positioning holes 7 and 8 of the bridge plate connecting seat, the bridge plate connecting seat 11 and the bridge plate ear seat 12 are positioned and fixed on the inner main stiffening plate 4.

[0086] S5: Place the inner main stiffening plate 4 and the outer main stiffening plate 5 in parallel on both sides of the base plate 18, ensuring that the bottom surfaces of the inner main stiffening plate 4 and the outer main stiffening plate 5 are in contact with the upper surface of the base plate 18, and then fix the three together to form the main structure of the single base 1.

[0087] S6: Based on the positions of the two column socket positioning holes 6, position and fix the base column socket 13 on the base plate 18;

[0088] S7: Based on the positions of the two column socket positioning holes 6 and the X-direction reference plane 2, finish machine the connecting rod hinge holes 14 on the inner main stiffening plate 4 and the outer main stiffening plate 5.

[0089] This method uses the same positioning references (X-axis reference plane 2 and Y-axis reference plane 3) during the manufacturing process of each single base 1. Simultaneously, corresponding positioning holes are added at the locations where the bridge plate connecting seat 11 and bridge plate ear seat 12 are installed to assist in installation. Furthermore, the column recess positioning hole 6 and the two newly added positioning holes (bridge plate connecting seat positioning hole 7 and bridge plate ear seat positioning hole 8) are machined simultaneously, ensuring consistency among the positioning holes on the single base 1. Using the same positioning references and manufacturing methods for multiple single bases 1 further reduces manufacturing errors between them, ensuring consistency at the hinge points. This avoids installation difficulties caused by poor consistency at the hinge points of each single base 1, and prevents the phenomenon of two assembled single bases 1 "stepping" forward or backward during subsequent use. This improves the adaptability of the hydraulic support to complex geological conditions and ensures the stability and safety of the support.

[0090] Each step is discussed in detail below:

[0091] Regarding step S1:

[0092] In this embodiment, the bottom surface and front surface of the inner main stiffening plate 4 and the outer main stiffening plate 5 are precision milled by CNC milling machine to make them flatter. The flatness requirement is within the range of ±0.2mm to ±0.5mm, preferably ±0.3mm. After machining, the bottom surface is used as the X-direction reference surface 2 and the front surface is used as the Y-direction reference surface 3.

[0093] In this embodiment, the same surface is selected as the reference surface on the inner main stiffening plate 4 and the outer main stiffening plate 5, and the same processing method is used to fully ensure the consistency between the two, providing a reference for subsequent processing and assembly.

[0094] Regarding step S2:

[0095] In this embodiment, as Figure 8 As shown, tooling 100 is used to assist in completing step S2.

[0096] The fixture 100 is a rectangular plate with an X datum 101, a Y datum 102, a first hole 103, a second hole 104, and a third hole 105. Specifically, the lower surface of the horizontal edge of the rectangular plate forms the X datum 101, which matches the X-direction datum plane 2; the front end face of the vertical edge of the rectangular plate located to the left of the selected horizontal edge forms the Y datum 102, which matches the Y-direction datum plane 3; the first hole 103, the second hole 104, and the third hole 105 are provided on the surface of the rectangular plate. The dimensions of the first hole 103 and its relationship with the X datum 105 are specified. The positional relationship between reference 101 and Y reference 102 is the same as the size of the column socket positioning hole 6 and its positional relationship with the X-direction reference plane 2 and the Y-direction reference plane 3; the size of the second hole 104 and its positional relationship with the X-direction reference 101 and Y reference 102 are the same as the size of the bridge plate connecting seat positioning hole 7 and its positional relationship with the X-direction reference plane 2 and the Y-direction reference plane 3; the size of the third hole 105 and its positional relationship with the X-direction reference 101 and Y reference 102 are the same as the size of the bridge plate ear seat positioning hole 8 and its positional relationship with the X-direction reference plane 2 and the Y-direction reference plane 3.

[0097] In use, first, attach the surface of fixture 100 to the inner main stiffening plate 4, and simultaneously align the X-reference 101 and Y-reference 102 of fixture 100 with the X-reference surface 2 and Y-reference surface 3 of the inner main stiffening plate 4. Based on the position and dimensions of the first hole 103, the second hole 104, and the third hole 105, use a CNC drilling machine or other drilling equipment for machining. During machining, the inner main stiffening plate 4 and fixture 100 need to be fixed simultaneously on the drilling equipment, and then the drill bit is guided through the holes on fixture 100 for drilling. Holes are drilled on the inner main stiffening plate 4 to locate and machine the column recess positioning hole 6, the bridge plate connecting seat positioning hole 7, and the bridge plate ear seat positioning hole 8; then the plate surface of tooling 100 is attached to the outer main stiffening plate 5, and the X reference 101 and Y reference 102 of tooling 100 are simultaneously aligned with the X reference surface 2 and Y reference surface 3 of the outer main stiffening plate 5. According to the position and size of the first hole 103, another column recess positioning hole 6 is located and machined on the outer main stiffening plate 5 using drilling equipment such as CNC drilling machine.

[0098] In this embodiment, drill sleeves 106 are embedded in the first hole 103, the second hole 104, and the third hole 105 of the tooling 100. The inner hole of the drill sleeve 106 is the same size as the holes to be machined on the main stiffening plate (including the inner main stiffening plate 4 and the outer main stiffening plate 5). At the same time, the material of the drill sleeve 106 is different from the main body material of the tooling 100. It can be made of a wear-resistant metal material with higher hardness. Therefore, the damage of the drill bit to the tooling 100 can be reduced when machining the main stiffening plate, so as to ensure the service life of the tooling 100.

[0099] like Figure 6 and Figure 7 As shown, this embodiment adds positioning holes 7 and 8 to the bridge plate connecting seat and the original column socket positioning hole 6 based on the original design of the inner main stiffening plate 4. The two newly added holes are machined simultaneously with the original column socket positioning hole 6, and all main stiffening plates are machined using the same reference, ensuring the consistency of the positional relationship between the holes in different main stiffening plates. This not only provides convenient positioning for the subsequent installation of the bridge plate connecting seat 11 and the bridge plate ear seat 12, but also ensures the installation accuracy of both. Meanwhile, the column socket positioning hole 6 serves as a common reference for the subsequent machining and assembly of multiple components. Therefore, machining it simultaneously further ensures that the relative positional relationship between multiple components meets the design requirements for assembly clearance, providing a fundamental guarantee for the normal operation of the entire hydraulic support.

[0100] Meanwhile, this embodiment uses tooling 100 for auxiliary processing, which avoids the errors caused by repeated positioning and alignment during processing, thus improving not only the accuracy of processing but also the work efficiency.

[0101] Regarding step S3:

[0102] In this embodiment, as Figure 9 As shown, tooling 200 is used to assist in completing step S3.

[0103] The tooling 200 includes a reference stepped positioning shaft 201, an L-shaped positioning plate 202, an ear plate positioning shaft 203, and a vertical positioning plate 204.

[0104] One end of the reference stepped positioning shaft 201 is a small shaft segment that matches the size of the positioning hole 6 in the column socket, and the other end is a large shaft segment that matches the size of the mounting groove of the limiting connecting seat 9. According to the actual positioning requirements, the cross-sections of the small shaft segment and the large shaft segment are both circular, and the diameter of the small shaft segment is smaller than the diameter of the large shaft segment. Here, "small" and "large" are only a comparison of the size between the two shaft segments inside the reference stepped positioning shaft 201, not absolute values, and are not compared with other positioning shafts.

[0105] The L-shaped positioning plate 202 has a groove at one end that matches the large shaft section of the reference stepped positioning shaft 201, and a first through hole at the other end that matches the ear plate positioning shaft 203.

[0106] The ear plate positioning shaft 203 is an optical shaft that matches the size of the mounting hole of the column pressure plate ear plate 10;

[0107] The upper end of the vertical positioning plate 204 has a second through hole of the same size as the first through hole, and the lower end is fixedly connected to two horizontally parallel positioning pins 205.

[0108] The above description of the compatibility between the various components in tooling 200 refers to the fact that the inner diameter of the hole or the opening size of the groove is slightly larger than the size of the shaft, so that the hole and shaft or groove and shaft can form a clearance fit, which facilitates installation and disassembly.

[0109] Since both the inner main stiffening plate 4 and the outer main stiffening plate 5 require fixed limiting connecting seats 9 and column pressure plate ear plates 10, the following example uses the above-mentioned tooling 200 on the inner main stiffening plate 4. The same applies to the outer main stiffening plate 5, so it will not be described again.

[0110] In use, first, insert the small shaft section of the reference stepped positioning shaft 201 into the column recess positioning hole 6 formed in step S2 of the inner main stiffening plate 4. The side of the large shaft section of the reference stepped positioning shaft 201 is in contact with the inner main stiffening plate 4, and the reference stepped positioning shaft 201 is oriented perpendicular to the surface of the inner main stiffening plate 4. Then, the groove of the L-shaped positioning plate 202 abuts against the large shaft section of the reference stepped positioning shaft 201 (the inner surface of the groove is in contact with the outer surface of the large shaft section of the reference stepped positioning shaft 201), and the opening of the L-shaped positioning plate 202 faces the intersection of the X-direction reference plane 2 and the Y-direction reference plane 3. At the same time, place the vertical positioning plate 204 perpendicular to the X-direction reference plane 2, so that the upper ends of the outer peripheral walls of the two positioning pins 205 abut against the bottom surface of the inner main stiffening plate 4 (i.e., the X-direction reference plane 2). Next, the ear plate positioning shaft 203 is sequentially inserted into the first through hole on the L-shaped positioning plate 202, the second through hole on the vertical positioning plate 204, and the mounting hole of the column pressure plate ear plate 10. The vertical positioning plate 204 remains vertically oriented, the position of the second through hole is fixed, and the L-shaped positioning plate 202 can be rotated to align the first and second through holes coaxially so that the ear plate positioning shaft 203 can be inserted. Finally, based on the outer circumferential surface of the main shaft section of the reference stepped positioning shaft 201 and the two side walls of the L-shaped positioning plate 202, the limiting connecting seat 9 is fixedly installed, so that the U-shaped inner wall of the limiting connecting seat 9 simultaneously conforms to the outer circumferential surface of the main shaft section of the reference stepped positioning shaft 201 and the two side walls of the L-shaped positioning plate 202. Based on the position of the column pressure plate ear plate 10 after it has been inserted into the ear plate positioning shaft 203, it is welded to the inner main stiffening plate 4. During installation, it should be ensured that the mounting surface of the column pressure plate ear plate 10 is completely in contact with the mounting surface on the inner main stiffening plate 4. After installation, remove tooling 200.

[0111] In this embodiment, the tooling 200 is used to assist in the installation of the limiting connecting seat 9 and the column pressure plate ear plate 10. The positioning reference is based on the column socket positioning hole 6 and the X-direction reference surface 2, which ensures the consistency of the reference and thus ensures the smooth assembly of the column pressure plate of the subsequent hydraulic support assembly. At the same time, it saves the tedious process of manual measurement and marking, reduces assembly errors and improves work efficiency.

[0112] Regarding step S4:

[0113] In this embodiment, as Figure 10 As shown, step S4 is completed using tooling 3300.

[0114] The tooling 300 includes a first-step positioning shaft 301, a second-step positioning shaft 302, and a transverse positioning shaft 303.

[0115] One end of the first-step positioning shaft 301 is a small shaft segment that matches the size of the positioning hole 7 of the bridge plate connecting seat, and the other end is a large shaft segment that matches the size of the U-shaped groove bottom of the bridge plate connecting seat 11. The cross-sections of the small shaft segment and the large shaft segment are both circular, and the diameter of the small shaft segment is smaller than that of the large shaft segment. Here, "small" and "large" are only a comparison of the size between the two shaft segments inside the first-step positioning shaft 301, and are not absolute values, nor are they compared with other positioning shafts.

[0116] The second-step positioning shaft 302 has a small shaft section at one end that matches the size of the positioning hole 8 of the bridge plate ear seat, and a large shaft section at the other end that matches the size of the mounting groove of the bridge plate ear seat 12. The cross-sections of the small shaft section and the large shaft section are both circular, and the diameter of the small shaft section is smaller than that of the large shaft section. The terms "small" and "large" refer only to the size comparison between the two shaft sections inside the second-step positioning shaft 302, and are not absolute values, nor are they compared with other positioning shafts.

[0117] The transverse positioning shaft 303 is an optical axis that matches the size of the positioning holes on the side wall of the bridge plate connecting seat 11 and the side wall of the bridge plate ear seat 12. The cross section of the transverse positioning shaft 303 is circular.

[0118] The above description of the compatibility between the various components in tooling 300 refers to the fact that the inner diameter of the hole or the opening size of the groove is slightly larger than the size of the shaft, so that the hole and shaft or groove and shaft can form a clearance fit, which facilitates installation and disassembly.

[0119] In use, firstly, insert the small shaft section of the first-step positioning shaft 301 into the positioning hole 7 of the bridge plate connecting seat on the inner main stiffening plate 4, with the side of its large shaft section fitting against the inner main stiffening plate 4. The first-step positioning shaft 301 is oriented perpendicular to the surface of the inner stiffening plate 4. Then, insert the small shaft section of the second-step positioning shaft 302 into the positioning hole 8 of the bridge plate ear seat, with the side of its large shaft section fitting against the inner main stiffening plate 4. The second-step positioning shaft 302 is oriented perpendicular to the surface of the inner stiffening plate 4. Next, engage the U-shaped groove bottom of the bridge plate connecting seat 11 with the large shaft section of the first-step positioning shaft 301. The U-shaped opening is horizontal and upward, and the inner surface of the U-shaped groove bottom fits against the outer wall of the large shaft section. Finally, engage the two ear plates of the bridge plate ear seat 12, arranged left and right, with the inner side wall of the ear plate fitting against the outer wall of the large shaft section. Next, the transverse positioning shaft 303 is placed parallel to the X-axis reference plane 2 and passes sequentially through the positioning holes on the side walls of the bridge plate connecting seat 11 and the bridge plate ear seat 12. The positions of the first-step positioning shaft 301 and the second-step positioning shaft 302 remain fixed, thus restricting the lateral displacement of the bridge plate connecting seat 11 and the bridge plate ear seat 12. The U-shaped groove bottom of the bridge plate connecting seat 11 is also in contact with the outer wall of the large shaft section of the first-step positioning shaft 301, further restricting the vertical displacement of the bridge plate connecting seat 11. Then, the transverse positioning shaft 303 is first horizontally inserted into the positioning hole on the side wall of the bridge plate connecting seat 11, and then the angle of the bridge plate ear seat 12 is adjusted so that the positioning hole on its side wall allows the transverse positioning shaft 303 to pass through. At this point, the positions of the bridge plate connecting seat 11 and the bridge plate ear seat 12 are both fixed. Finally, based on the limiting position of tooling 300, the bridge plate connecting seat 11 and the bridge plate ear seat 12 are welded to the inner main stiffening plate 4. After installation, tooling 300 is removed.

[0120] In this embodiment, tooling 300 is used to assist in the installation of the bridge plate connecting seat 11 and the bridge plate ear seat 12. By passing a transverse positioning shaft 303 between them, the coaxiality of the two parts is ensured. In addition, a trapezoidal positioning shaft is used for double limiting, which ensures the relative positional relationship between the bridge plate connecting seat 11 and the bridge plate ear seat 12. At the same time, the use of this tooling to assist in assembly not only avoids the errors of manual measurement and scribing, but also improves work efficiency.

[0121] Regarding step S5:

[0122] In this embodiment, the inner main stiffening plate 4 and the outer main stiffening plate 5 are placed parallel to each other on both sides of the base plate 18, so that the bottom surfaces of the inner main stiffening plate 4 and the outer main stiffening plate 5 are in contact with the upper plane of the base plate 18 where the main stiffening plates are installed. At this time, the X-direction reference plane 2 of the inner main stiffening plate 4 and the outer main stiffening plate 5 are coplanar and in contact with the upper surface of the base plate 18, and the Y-direction reference plane 3 of the inner main stiffening plate 4 and the outer main stiffening plate 5 are coplanar. Then, the inner main stiffening plate 4, the outer main stiffening plate 5 and the base plate 18 are welded together to form the main structure of the single base 1.

[0123] Regarding step S6:

[0124] In this embodiment, as Figure 11 , Figure 12 As shown, step S6 is completed using tooling 400.

[0125] The tooling 400 includes a sector-shaped positioning plate 401 and a long positioning shaft 402.

[0126] The fan-shaped area of ​​the fan-shaped positioning plate 401 is adapted to the shape of the hollow on the base column socket 13 (that is, the shape and size of the fan-shaped area are the same as the central section of the hollow on the base column socket 13), and a third through hole for the long positioning shaft 402 to pass through is provided near the center of the fan-shaped area.

[0127] The long positioning shaft 402 is an optical shaft that is adapted to the size of the socket positioning hole 6 (that is, the outer diameter of the long positioning shaft 402 is slightly smaller than the inner diameter of the socket positioning hole 6, and the two can form a clearance fit, which facilitates installation and disassembly).

[0128] In use, the long positioning shaft 402 is passed sequentially through the column socket positioning hole 6 on the outer main stiffening plate 5, the third through hole on the fan-shaped positioning plate 401, and another column socket positioning hole 6 on the inner main stiffening plate 4. The fan-shaped positioning plate 401 is placed in the middle of the two column socket positioning holes 6 (that is, the fan-shaped positioning plate 401 is placed perpendicular to the bottom plate of the single base 1 in the middle of the inner main stiffening plate 4 and the outer main stiffening plate 5). The position of the base column socket 13 is moved so that the socket on its upper surface coincides with the lower fan-shaped area of ​​the fan-shaped positioning plate 401, thereby determining the position of the base column socket 13 and welding it to the bottom plate of the single base 1.

[0129] In this embodiment, tooling 400 is used to assist in the installation of the base column socket 13. This not only avoids errors caused by manual measurement and marking, but also improves the efficiency of assembly. At the same time, since the fan-shaped area of ​​the fan-shaped positioning plate 401 matches the shape of the socket on the base column socket 13, the processing of the socket on the base column socket 13 can be further inspected, which can better ensure the smooth installation of the subsequent column 50.

[0130] Regarding step S7:

[0131] In this embodiment, as Figure 13 and Figure 14 As shown, step S7 is completed with the assistance of the long positioning shaft 402 in tooling 400.

[0132] In use, the long positioning shaft 402 is passed through the two column-shaped positioning holes 6 on the single base 1 in sequence (i.e., the column-shaped positioning hole 6 on the inner main stiffening plate 4 and the other column-shaped positioning hole 6 on the outer main stiffening plate 5). The base plate of the single base 1 is then aligned with the worktable of the digital display boring machine. The position coordinates of the long positioning shaft 402 are measured to ensure that the position coordinates of the long positioning shaft 402 are consistent with the reference coordinates of the machine tool. Then, the position coordinates of the connecting rod hinge hole 14 are set and it is precision machined.

[0133] In this embodiment, the long positioning shaft 402 is used to assist in the machining of the connecting rod hinge hole 14. In essence, it is still to use the column socket positioning hole 6 as a reference for machining, to ensure the relative positional relationship between the column socket positioning hole 6 and the connecting rod hinge hole 14, as well as the consistency of each hole on multiple main stiffener plates. This ensures that after the subsequent installation of the column 50 and the connecting rod 40, the two can better cooperate with each other, so as to ensure that the entire hydraulic support can work normally.

[0134] Example 2:

[0135] Reference Figure 15 and Figure 16 This embodiment shows a split base comprising two single bases 1 manufactured by any of the manufacturing methods described in Embodiment 1, and two semi-circular bridge plates 15. One of the single bases 1 is a left base 70, and the other is a right base 80. One bridge plate 15 has a downward-facing semi-circular opening and its left and right sides are detachably connected to the bridge plate connecting seats 11 on the left base 70 and right base 80 respectively using hinge pins 17. The other bridge plate 15 has a downward-facing semi-circular opening and its left and right sides are detachably connected to the bridge plate ear seats 12 on the left base 70 and right base 80 respectively using hinge pins 17. This embodiment selects two bases manufactured using the same method for assembly. The manufacturing error between the two bases is small, assembly is easy, and after assembly, the two bases have good consistency, which facilitates the subsequent installation of other components, thereby ensuring the working performance of the entire hydraulic support. Simultaneously, to make the hydraulic support base have strong left and right height adaptability, such as… Figure 17 As shown, in this embodiment, the hole on the bridge plate 15 that connects to the hinge pin 17 is set as a vertical elongated hole 16. This allows adjustment via the elongated hole on the bridge plate 15 to prevent bending moments caused by height differences when either base plate is uneven. This avoids the potential for weld cracking and failure common in many existing rigid bridges. Furthermore, the use of the hinge pin 17 provides strong left and right sway adaptability to the base, allowing the hydraulic support to safely pass over base plates with raised working surfaces. The hinged connection also requires low concentricity, is easy to manufacture, has a low installation difficulty, and is convenient for disassembly and maintenance.

[0136] Meanwhile, since the working environment of the ZY5096 / 13 / 20 type shield hydraulic support (i.e., Y410) exported to Russia is a potash mine, its base plate has large local undulations. Therefore, the manufacturing method of the single base of the hydraulic support and a split base shown in this invention are particularly suitable for this product.

[0137] In the description of this invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0138] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0139] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," or "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," or "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0140] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0141] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for manufacturing a single base of a hydraulic support, characterized in that, The steps include the following: S1: Process the bottom surface and front surface of the inner main stiffening plate (4) and the outer main stiffening plate (5) respectively to meet the flatness requirements, and take the bottom surface as the X-direction reference surface (2) and the front surface as the Y-direction reference surface (3). S2: Using the X-direction reference plane (2) and the Y-direction reference plane (3) as references, position and machine the column socket positioning hole (6), the bridge plate connecting seat positioning hole (7) and the bridge plate ear seat positioning hole (8) on the inner main stiffener plate (4); Position and machine another column socket positioning hole (6) on the outer main stiffener plate (5) with the same position and size as the column socket positioning hole (6) on the inner main stiffener plate (4); S3: Based on the position of the column socket positioning hole (6) on the inner main stiffening plate (4) and the outer main stiffening plate (5) and the X-direction reference plane (2), respectively position and fix the limiting connecting seat (9) and the column pressure plate ear plate (10) on the inner main stiffening plate (4) and the outer main stiffening plate (5). S4: Based on the positions of the positioning holes (7) and (8) of the bridge plate connecting seat, the bridge plate connecting seat (11) and the bridge plate ear seat (12) are positioned and fixed on the inner main stiffener plate (4); S5: Place the inner main stiffener plate (4) and the outer main stiffener plate (5) in parallel on both sides of the base plate (18) to ensure that the bottom surfaces of the inner main stiffener plate (4) and the outer main stiffener plate (5) are in contact with the upper surface of the base plate (18), and then fix the three together to form the main structure of the single base (1). S6: Based on the positions of the two column socket positioning holes (6), position and fix the base column socket (13) on the base plate (18); S7: Based on the position of the two column socket positioning holes (6) and the X-direction reference plane (2), finish machine the connecting rod hinge holes (14) on the inner main stiffening plate (4) and the outer main stiffening plate (5).

2. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S1, the flatness requirement of the X-direction reference plane (2) and the Y-direction reference plane (3) is within the range of ±0.2mm to ±0.5mm.

3. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S2, tooling 1 (100) is used to assist in the completion; Tooling 1 (100) has X datum (101) and Y datum (102) that match the X-direction datum plane (2) and the Y-direction datum plane (3), as well as a first hole (103), a second hole (104) and a third hole (105). The dimensions of the first hole (103), the second hole (104) and the third hole (105) and their positional relationship with the X datum (101) and the Y datum (102) are the same as the dimensions of the column socket positioning hole (6), the bridge plate connecting seat positioning hole (7) and the bridge plate ear seat positioning hole (8) and their positional relationship with the X-direction datum plane (2) and the Y-direction datum plane (3). When in use, the X reference (101) and Y reference (102) of tooling 1 (100) are aligned with the X reference plane (2) and Y reference plane (3) at the same time, and then attached to the inner main stiffening plate (4) and the outer main stiffening plate (5) in turn. According to the position and size of the first hole (103), the second hole (104) and the third hole (105), the column socket positioning hole (6), the bridge plate connecting seat positioning hole (7) and the bridge plate ear seat positioning hole (8) are located on the inner main stiffening plate (4). According to the position and size of the first hole (103), another column socket positioning hole (6) is located on the outer main stiffening plate (5) and another column socket positioning hole (6) is located.

4. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S3, tooling two (200) is used to assist in the completion; Tooling 2 (200) includes: a reference stepped positioning shaft (201), an L-shaped positioning plate (202), an ear plate positioning shaft (203), and a vertical positioning plate (204); One end of the reference stepped positioning shaft (201) is a small shaft section that matches the size of the locating hole (6) in the column socket, and the other end is a large shaft section that matches the size of the mounting groove of the limiting connecting seat (9). The L-shaped positioning plate (202) has a groove at one end that matches the large shaft section of the reference stepped positioning shaft (201), and a first through hole at the other end that matches the ear plate positioning shaft (203). The ear plate positioning shaft (203) is an optical shaft that matches the size of the mounting hole of the column pressure plate ear plate (10); The upper end of the vertical positioning plate (204) has a second through hole of the same size as the first through hole, and the lower end is fixedly connected with two horizontally parallel positioning pins (205); In use, the small shaft section of the reference stepped positioning shaft (201) is inserted into the column socket positioning hole (6), and the groove of the L-shaped positioning plate (202) abuts against the large shaft section of the reference stepped positioning shaft (201). At the same time, the upper ends of the outer peripheral walls of the two positioning pins (205) abut against the bottom surface of the main stiffening plate. Then, the ear plate positioning shaft (203) is inserted into the first through hole, the second through hole and the mounting hole of the column pressure plate ear plate (10) in sequence. The limiting connection seat (9) and the column pressure plate ear plate (10) are installed based on the limiting of the tooling two (200).

5. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S4, tooling three (300) is used to assist in the completion; Tooling 3 (300) includes: a first-step positioning shaft (301), a second-step positioning shaft (302), and a transverse positioning shaft (303); One end of the first step positioning shaft (301) is a small shaft section that matches the size of the positioning hole (7) of the bridge plate connecting seat, and the other end is a large shaft section that matches the size of the U-shaped groove bottom of the bridge plate connecting seat (11). The second-step positioning shaft (302) has a small shaft section at one end that matches the size of the positioning hole (8) of the bridge plate ear seat, and a large shaft section at the other end that matches the size of the mounting groove of the bridge plate ear seat (12). The transverse positioning axis (303) is an optical axis that matches the size of the positioning holes on the side wall of the bridge plate connecting seat (11) and the side wall of the bridge plate ear seat (12); In use, the small shaft segments of the first step positioning shaft (301) and the second step positioning shaft (302) are respectively inserted into the positioning holes (7) and (8) of the bridge plate connecting seat and the bridge plate ear seat. The bottom of the U-shaped groove of the bridge plate connecting seat (11) is engaged with the large shaft segment of the first step positioning shaft (301). The bridge plate ear seat (12) is engaged with the large shaft segment of the second step positioning shaft (302). The transverse positioning shaft (303) is placed parallel to the X-direction reference plane (2) and passes through the positioning holes on the side wall of the bridge plate connecting seat (11) and the side wall of the bridge plate ear seat (12) in sequence. The bridge plate connecting seat (11) and the bridge plate ear seat (12) are installed based on the limiting position of the tooling three (300).

6. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S6, tooling four (400) is used to assist in the completion; Tooling 4 (400) includes: a sector-shaped positioning plate (401) and a long positioning shaft (402); The fan-shaped area of ​​the fan-shaped positioning plate (401) is adapted to the shape of the recess on the base column socket (13), and a third through hole for the long positioning shaft (402) to pass through is provided near the center of the fan-shaped circle. The long positioning axis (402) is an optical axis that is adapted to the size of the positioning hole (6) in the column socket; In use, the long positioning shaft (402) is passed through the column socket positioning hole (6) on the outer main stiffening plate (5), the third through hole and the column socket positioning hole (6) on the inner main stiffening plate (4) in sequence, and the fan-shaped positioning plate (401) is placed in the middle of the two column socket positioning holes (6), and the base column socket (13) is installed based on the position of the lower fan-shaped area of ​​the fan-shaped positioning plate (401).

7. The manufacturing method of a single base for a hydraulic support as described in claim 1, characterized in that, In step S7, a long positioning axis (402) is used to assist in the completion; The long positioning axis (402) is an optical axis that is adapted to the size of the positioning hole (6) in the column socket; In use, the long positioning shaft (402) is passed through the two column socket positioning holes (6) in sequence, and the lower plane of the base plate (18) of the single base (1) is attached to the worktable of the digital display boring machine. Based on the long positioning shaft (402) and the X-direction reference plane (2), the connecting rod hinge hole (14) is precision machined.

8. A split base, characterized in that, It includes two single bases (1) manufactured using the manufacturing method described in any one of claims 1-7 and two bridge plates (15) with a semi-circular structure; Of the two single bases (1), one is the left base (70) and the other is the right base (80); One bridge plate (15) is detachably connected to the bridge plate connecting seat (11) on the left base (70) and the right base (80) on the left and right sides respectively. The other bridge plate (15) is detachably connected to the bridge plate ear seat (12) on the left base (70) and the right base (80) on the left and right sides respectively. When connected, the semi-circular opening of the bridge plate (15) faces downward.

9. A split base as described in claim 8, characterized in that, The bridge plate (15) is connected to the bridge plate connecting seat (11) and the bridge plate ear seat (12) by a hinge pin (17).

10. A split base as described in claim 9, characterized in that, The hole on the bridge plate (15) that connects to the hinge pin (17) is a vertical elongated hole (16).

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