Assembling and positioning method for hydraulic support structural part

Abstract

The invention relates to the technical field of coal mining, in particular to an assembling and positioning method for a hydraulic support structural part. The balance lug is positioned and installed on the shield beam or the top beam through the assembling positioning mechanism capable of achieving adjustment in the transverse direction, the longitudinal direction and the axial direction, the assembling positioning mechanism can adapt to products of different models, flexibility is extremely high, and errors caused by manual measurement and scribing are effectively avoided. Therefore, by means of the method, accurate positioning and installation of the balance lug on the shield beam or the top beam can be efficiently achieved, and the working efficiency can be improved while the assembly accuracy is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining in coal mines, and particularly to an assembly positioning method for structural components of hydraulic supports. Background Art

[0002] The structural components of hydraulic supports mainly include components such as the top beam, the shield beam, the base, the front connecting rod, the rear connecting rod, and the push rod. These components are combined together by means of welding, pin connection, etc. Among them, the balance ear seat is an important part of the shield beam or the top beam structure, and there is a close correlation between the hinge hole of the shield beam or the top beam and the balance ear seat hole. They cooperate together to ensure the stability and good working performance of the hydraulic support. In the past production process, most of them used the method of manual measurement and marking to determine the position of the balance ear seat, and then welded and fixed it on the shield beam or the top beam. This method is time-consuming and laborious, and cannot guarantee the assembly accuracy between the balance ear seat and the shield beam or the top beam, and the rework rate is extremely high. If the method of using the positioning plate tooling is adopted, only the horizontal and vertical distances between the two can be guaranteed, and it cannot be adjusted axially, so the assembly accuracy is still not high. More importantly, the sizes of the top beam, the shield beam, and the balance ear seat of the hydraulic support are diverse, and the applicable range of ordinary positioning plate tooling is relatively limited, that is, each set of tooling can only be applied to the corresponding product, and it cannot be reused after use. When the product changes, it cannot meet the new requirements. Repeatedly designing and producing different models of positioning plates is extremely costly and time-consuming and laborious. Therefore, there are still many drawbacks in this method.

[0003] Therefore, there is an urgent need for an assembly positioning method with high adaptability, high assembly accuracy, and high efficiency. Summary of the Invention

[0004] (I) Technical Problems to be Solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the present invention provides an assembly positioning method for structural components of hydraulic supports, which solves the problems of low accuracy, high cost, time-consuming and laborious, and poor adaptability of the traditional positioning and assembly methods.

[0006] (II) Technical Solutions

[0007] In order to achieve the above object, the main technical solutions adopted by the present invention include:

[0008] The present invention provides an assembly positioning method for structural components of hydraulic supports. The balance ear seat is positioned and installed on the structural beam of the hydraulic support by using the following assembly positioning mechanism. The structural beam is the shield beam or the top beam. The assembly positioning mechanism includes a reference shaft, a positioning shaft, a transverse positioning plate, and a longitudinal positioning plate. The transverse positioning plate and the longitudinal positioning plate are slidably connected in a cross shape, and both of them have a butting end.

[0009] It includes the following steps:

[0010] S1: Horizontally place the structural beam with the end for connecting to the balance ear seat facing upward, and place the balance ear seat at the plane of the structural beam for installing the balance ear seat to complete the rough adjustment of the balance ear seat;

[0011] S2: Sequentially pass a reference shaft through the hinge holes of each rib plate on the structural beam;

[0012] S3: Sequentially pass a positioning shaft through each balance ear seat hole on the balance ear seat;

[0013] S4: Slide and adjust the positional relationship between the transverse positioning plate and the longitudinal positioning plate so that the distance from the center point of their cross-sliding connection to the abutting end of the transverse positioning plate is equal to the horizontal distance between the hinge hole and the balance ear seat hole, and the distance from the center point to the abutting end of the longitudinal positioning plate is equal to the vertical distance between the hinge hole and the balance ear seat hole;

[0014] S5: Ensure that the positional relationship between the transverse positioning plate and the longitudinal positioning plate remains unchanged, vertically abut the abutting end of the longitudinal positioning plate on the reference shaft, and adjust along the axial direction so that the positional relationship between the longitudinal positioning plate and each hinge hole is the same as the positional relationship between the midpoint of the axial direction of each balance ear seat hole and each hinge hole;

[0015] S6: Move the balance ear seat so that the middle position of the positioning shaft abuts on the abutting end of the transverse positioning plate to complete the fine adjustment of the balance ear seat;

[0016] S7: Based on the position of the balance ear seat after fine adjustment, fixedly install it on the structural beam and remove the assembly positioning mechanism.

[0017] Optionally, a guide block and a fastener are provided at the center point of the cross-sliding connection between the transverse positioning plate and the longitudinal positioning plate.

[0018] The guide block is a square structure with a cross-shaped groove, and a round hole is provided at the center position of the cross-shaped groove.

[0019] A first long circular hole along its length direction is provided in the middle of the transverse positioning plate, and a second long circular hole along its length direction is provided in the middle of the longitudinal positioning plate.

[0020] In step S4, vertically stack the transverse positioning plate and the longitudinal positioning plate in the cross-shaped groove, and use the fastener to fix the three at the position of the round hole. Through the sliding of the fastener in the first long circular hole and the second long circular hole, the sliding adjustment between the transverse positioning plate and the longitudinal positioning plate is realized.

[0021] Optionally, the transverse positioning plate and the longitudinal positioning plate are respectively provided with a first scale line and a second scale line along the length direction.

[0022] In step S4, the positional relationship between the transverse positioning plate and the longitudinal positioning plate can be determined by the values of the first scale line and the second scale line. Among them, the length of the first scale line is greater than or equal to the length of the first oblong hole, and its position is offset by 1 / 2 of the width of the guide block in the direction of its abutting end. When the guide block slides to the position closest to the abutting end of the first oblong hole, the side edge of the guide block is just aligned with the zero position of the first scale line. Based on this position, the position of the transverse positioning plate relative to the guide block is adjusted; the length of the second scale line is greater than or equal to the length of the second oblong hole, and its position is offset by 1 / 2 of the width of the guide block in the direction of its abutting end. When the guide block slides to the position closest to the abutting end of the second oblong hole, the side edge of the guide block is just aligned with the zero position of the second scale line. Based on this position, the position of the longitudinal positioning plate relative to the guide block is adjusted;

[0023] After adjusting the positions of the transverse positioning plate and the longitudinal positioning plate, tighten the fasteners to fix their relative positions.

[0024] Optionally, the abutting end of the transverse positioning plate is provided with a first U-shaped groove, and the abutting end of the longitudinal positioning plate is provided with a second U-shaped groove.

[0025] In step S5, insert the longitudinal positioning plate onto the reference shaft through the second U-shaped groove.

[0026] In step S6, move the balance ear seat and insert the positioning shaft into the first U-shaped groove of the transverse positioning plate.

[0027] Optionally, a first handle is provided on one side of the transverse positioning plate away from its abutting end, and a second handle is provided on one side of the longitudinal positioning plate away from its abutting end. Both the first handle and the second handle are square through holes.

[0028] In step S4, slide and adjust the positional relationship between the transverse positioning plate and the longitudinal positioning plate by pulling the first handle and the second handle.

[0029] Optionally, the assembled positioning mechanism is further provided with a positioning sleeve in a ring structure.

[0030] In step S2, after the reference shaft passes through each hinge hole, insert positioning sleeves into the two hinge holes close to the shaft end respectively to fix the reference shaft. The positioning sleeve is sleeved on the outer periphery of the reference shaft, and its outer peripheral wall abuts against the inner peripheral wall of the hinge hole;

[0031] In step S3, after the positioning shaft passes through the balance ear seat hole, insert positioning sleeves into the two balance ear seat holes close to the shaft end respectively to fix the positioning shaft. The positioning sleeve is sleeved on the outer periphery of the positioning shaft, and its outer peripheral wall abuts against the inner peripheral wall of the balance ear seat hole.

[0032] Optionally, the positioning sleeve is a trapezoidal positioning sleeve or a conical positioning sleeve.

[0033] When using a trapezoidal positioning sleeve, the shaft where it is located is a smooth shaft. The inner hole of the trapezoidal positioning sleeve is a through hole that can have a clearance fit with the shaft where it is located. The outer diameter is a trapezoidal structure including a large-diameter section and a small-diameter section. The small-diameter section can be inserted into the hinge hole or the balance ear seat hole, and the step between the large-diameter section and the small-diameter section abuts against the outer wall in the axial direction of the hole where it is located.

[0034] When using a conical positioning sleeve, the middle section of the shaft where it is located that contacts the longitudinal positioning plate or the transverse positioning plate is a smooth shaft section, and both ends of the shaft where it is located are threaded sections. The inner hole of the conical positioning sleeve is an internal threaded hole that can be screwed with the threaded section, and the outer peripheral wall is a conical structure. The conical structure can be partially inserted into the hinge hole or the balance ear seat hole and abut against the inner wall of the hole where it is located.

[0035] Optionally, in step S2, a trapezoidal positioning sleeve is used, and the large-diameter sections of the trapezoidal positioning sleeves provided at both ends of the reference shaft are arranged oppositely. In step S3, a conical positioning sleeve is used, and the small-diameter ends of the conical structures of the conical positioning sleeves provided at both ends of the positioning shaft are arranged oppositely.

[0036] Optionally, a hexagon operation part is provided at the large-diameter end of the conical structure of the conical positioning sleeve;

[0037] In step S3, the conical positioning sleeve is screwed into the balance ear seat hole by rotating the hexagon operation part.

[0038] Optionally, when it is necessary to position and install multiple balance ear seats on the structural beam, the positioning shaft, the transverse positioning plate, and the longitudinal positioning plate can all be arranged in parallel along the axial direction of the reference shaft in multiple groups with the same number as the balance ear seats.

[0039] (III) Beneficial effects

[0040] The beneficial effects of the present invention are:

[0041] An assembly positioning method for hydraulic support structural parts of the present invention uses an assembly positioning mechanism with a positioning shaft, a reference shaft, and a transverse positioning plate and a longitudinal positioning plate that can be slidably connected in a cross shape to position and install balance ear seats. This assembly positioning mechanism can be adjusted in three directions: transverse, longitudinal, and axial, can adapt to different models of products, has extremely high flexibility, low cost, and can effectively avoid the errors of manual measurement and marking. Therefore, this method can efficiently achieve the precise positioning and installation of balance ear seats on the shield beam or the top beam, and while ensuring the assembly accuracy, it can also improve the work efficiency. Description of the drawings

[0042] Figure 1 is a flowchart of an assembly positioning method for hydraulic support structural parts of the present invention;

[0043] Figure 2 is adopted Figure 1The front view of Embodiment 1 of the assembly positioning method, where the dashed part is the shield beam and the balance ear seat, and the solid part is the assembly positioning mechanism;

[0044] Figure 3 For the use of Figure 1 The top view of Embodiment 1 of the assembly positioning method, where the dashed part is the shield beam and the balance ear seat, and the solid part is the assembly positioning mechanism;

[0045] Figure 4 Is Figure 2 、 Figure 3 The front view of the assembly positioning mechanism used in;

[0046] Figure 5 Is Figure 2 、 Figure 3 The top view of the assembly positioning mechanism used in;

[0047] Figure 6 Is Figure 4 The front view of the transverse positioning plate in the assembly positioning mechanism in;

[0048] Figure 7 Is Figure 4 The front view of the longitudinal positioning plate in the assembly positioning mechanism in;

[0049] Figure 8 Is Figure 4 The front view of the guide block in the assembly positioning mechanism in;

[0050] Figure 9 Is Figure 8 The side view of the guide block in;

[0051] Figure 10 Is Figure 8 The top view of the guide block in;

[0052] Figure 11 Is Figure 4 The front view of the trapezoidal positioning sleeve in the assembly positioning mechanism in;

[0053] Figure 12 Is Figure 11 The side view of the trapezoidal positioning sleeve in;

[0054] Figure 13 Is Figure 4 The front view of the conical positioning sleeve in the assembly positioning mechanism in;

[0055] Figure 14 Is Figure 13 The side view of the conical positioning sleeve in;

[0056] Figure 15 Is Figure 4 The front view of the reference shaft in the assembly positioning mechanism in;

[0057] Figure 16 The Figure 4 front view of the positioning shaft in the assembly positioning mechanism in

[0058]

Description of the reference numerals

[0059] 1: reference shaft; 11: small shaft section;

[0060] 2: positioning shaft; 21: optical shaft section; 22: threaded section;

[0061] 3: transverse positioning plate; 31: first oblong hole; 32: first U-shaped groove; 33: first handle; 34: first scale line; 35: protrusion;

[0062] 4: longitudinal positioning plate; 41: second oblong hole; 42: second U-shaped groove; 43: second handle; 44: second scale line;

[0063] 5: guide block; 51: cross groove; 52: round hole;

[0064] 6: fastener;

[0065] 7: positioning sleeve; 71: trapezoidal positioning sleeve; 711: large diameter section; 712: small diameter section; 72: conical positioning sleeve; 721: hexagonal operation part;

[0066] 10: structural beam; 101: hinge hole;

[0067] 20: balance ear seat; 201: balance ear seat hole;

[0068] 30: shield beam;

[0069] 40: roof beam. Detailed implementation manners

[0070] In order to better explain the present invention for easy understanding, the present invention will be described in detail below in conjunction with the accompanying drawings through specific implementation manners. Among them, the orientation nouns such as "up", "down", "left", and "right" mentioned herein are Figure 2 taken as a reference for the orientation of

[0071] A method for assembling and positioning structural components of a hydraulic support proposed in an embodiment of the present invention uses an assembly positioning mechanism with a positioning shaft, a reference shaft, and a transverse positioning plate and a longitudinal positioning plate that can be slidably connected in a cross shape to position and install a balance ear seat. This assembly positioning mechanism can be adjusted in three directions: transverse, longitudinal, and axial to adapt to different models of products, with extremely high flexibility, and effectively avoids errors in manual measurement and marking. Therefore, while ensuring the assembly accuracy, it can also improve work efficiency.

[0072] To better understand the above technical solution, the exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although the 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 by the embodiments set forth herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0073] Embodiment 1:

[0074] Since the structural beam 10 is the canopy beam 30 or the roof beam 40, and the method steps for positioning and installing the balance ear seat 20 on the canopy beam 30 or the roof beam 40 are the same, this embodiment takes the canopy beam 30 as an example, and the installation steps on the roof beam 40 will not be elaborated further.

[0075] Meanwhile, referring to Figures 1 to 3 as shown, a method for assembling and positioning structural members of a hydraulic support shown in this embodiment is to provide a method for positioning and installing the balance ear seat 20 on the canopy beam 30 by using a specific assembling and positioning mechanism to ensure the assembling accuracy between the two, rather than an improvement on the structures of the canopy beam 30 and the balance ear seat 20 themselves. Therefore, the specific structures of the canopy beam 30 and the balance ear seat 20 will not be introduced in detail.

[0076] Referring to Figure 4 and Figure 5 as shown, the assembling and positioning mechanism adopted in this embodiment includes a reference shaft 1 (such as Figure 15 ), a positioning shaft 2 (such as Figure 16 ), a lateral positioning plate 3 (such as Figure 6 ), a longitudinal positioning plate 4 (such as Figure 7 ), a guide block 5 (such as Figure 8 ), a fastener 6 and a positioning sleeve 7 (such as Figures 11 to 14 ).

[0077] Among them, the guiding block 5 is a square structure with a cross-shaped groove 51. A round hole 52 is provided at the center position of the cross-shaped groove 51. The round hole 52 is a through hole. A first long round hole 31 along the length direction is provided in the middle of the transverse positioning plate 3, and a second long round hole 41 along the length direction is also provided in the middle of the longitudinal positioning plate 4. The transverse positioning plate 3 and the longitudinal positioning plate 4 are vertically stacked in the cross-shaped groove 51 and are connected by a fastener 6, that is, the fastener 6 passes through the round hole 52 in the middle of the guiding block 5, the first long round hole 31 of the transverse positioning plate 3, and the second long round hole 41 of the longitudinal positioning plate 4 in sequence, so as to fix the transverse positioning plate 3, the guiding block 5, and the longitudinal positioning plate 4 at the position of the round hole 52 by using the fastener 6. The stacking order of the transverse positioning plate 3 and the longitudinal positioning plate 4 can be freely adjusted. By sliding the fastener 6 in the first long round hole 31 and the second long round hole 41, a cross-shaped sliding connection between the transverse positioning plate 3 and the longitudinal positioning plate 4 in the cross-shaped groove 51 is realized, that is, the transverse positioning plate 3 and the longitudinal positioning plate 4 can slide in two mutually perpendicular directions (i.e., horizontally or vertically).

[0078] In this embodiment, as Figures 9 to 11 shown, the depths of the transverse and longitudinal grooves of the cross-shaped groove 51 are different. The transverse depth is the sum of the thicknesses of the transverse positioning plate 3 and the longitudinal positioning plate 4, and the longitudinal depth is the thickness of a single positioning plate, that is, the thickness of the transverse positioning plate 3 or the longitudinal positioning plate 4. Preferably, the two positioning plates are set to have the same thickness. The cross-shaped groove 51 is set to have different depths so that after installation, the transverse positioning plate 3 and the longitudinal positioning plate 4 can fit more closely with the cross-shaped groove 51 and have better stability. Among them, the fastener 6 preferably uses a bolt and a nut. The bolt passes through the guiding block 5, the transverse positioning plate 3, and the longitudinal positioning plate 4 in sequence and is screwed with the nut. The diameter of the bolt is smaller than the widths of the first long round hole 31 and the second long round hole 41. Therefore, the transverse positioning plate 3 and the longitudinal positioning plate 4 can slide freely along the opening direction of the cross-shaped groove 51 respectively, while the outer diameter of the nut is larger than the widths of the first long round hole 31 and the second long round hole 41, which can play a stopping role. The nut can not only ensure that the transverse positioning plate 3 and the longitudinal positioning plate 4 will not fall off, but also be used to lock and fix the relative positions between the positioning plates after adjusting to a suitable position. To ensure a better stopping effect at the nut end, a flat washer or a large washer can also be added at the end of the nut in contact with the transverse positioning plate 3 or the longitudinal positioning plate 4, which can ensure the stopping effect, protect the surface of the positioning plate to a certain extent, and improve the connection stability.

[0079] At the same time, one end of the longitudinal positioning plate 4 can abut against the reference shaft 1, and one end of the transverse positioning plate 3 can abut against the positioning shaft 2, and both can move along the axial directions of the reference shaft 1 and the positioning shaft 2 simultaneously.

[0080] When in use, the reference shaft 1 is inserted into the hinge hole 101, and the positioning shaft 2 is inserted into the balancing ear seat hole 201. By adjusting the position of the longitudinal positioning plate 4 on the reference shaft 1 and the transverse positioning plate 3 on the positioning shaft 2, the axial distance between the shielding beam 30 and the balancing ear seat 20 of different models can be adapted. This structure can adapt to different models of products and is very convenient. Then, the transverse distance and the longitudinal distance between the hinge hole 101 and the balancing ear seat hole 201 are determined by adjusting the transverse positioning plate 3 and the longitudinal positioning plate 4, that is, the transverse and longitudinal distances between the two holes are reflected to the positions on the transverse positioning plate 3 and the longitudinal positioning plate 4. Further, the transverse distance and the longitudinal distance between the hinge hole 101 and the balancing ear seat hole 201 can be determined by setting scale lines on the transverse positioning plate 3 and the longitudinal positioning plate 4 or using additional measuring tools (such as a box ruler) to measure the distance from the abutting end of the positioning plate to the guide block 5, so as to ensure the assembly accuracy between the two. This assembly positioning mechanism can be adjusted in three directions: horizontal, vertical and axial. It can better adapt to different types of products and has high flexibility. At the same time, there is no need to produce tooling of various sizes, which greatly reduces the production cost of tooling.

[0081] In this embodiment, in order to facilitate the adjustment of the distance between the transverse positioning plate 3 and the longitudinal positioning plate 4, a first scale line 34 is provided on the transverse positioning plate 3 along the length direction, the length of the first scale line 34 is greater than or equal to the length of the first oblong hole 31, and the first scale line 34 is staggered relative to the first oblong hole 31 in the direction in which it abuts against the positioning shaft 2, and the staggered distance is half the width of the guide block 5, so that when the guide block 5 is located at the end position of the first oblong hole 31 in the direction in which it abuts against the positioning shaft 2, the side edge of the guide block 5 can be aligned with the zero position of the first scale line 34, that is, Figure 2 When placed, when the guide block 5 is located at the extreme position on the right side of the transverse positioning plate 3 , the right side of the guide block 5 is aligned with the starting numerical position of the first scale line 34 .

[0082] A second scale line 44 is provided on the longitudinal positioning plate 4 along the length direction, the length of the second scale line 44 is greater than or equal to the length of the second oblong hole 41, and the second scale line 44 is staggered relative to the second oblong hole 41 in the direction in which it abuts against the reference axis 1, and the staggered distance is half the height of the guide block 5, so that when the guide block 5 is located at the end position of the second oblong hole 41 in the direction in which it abuts against the reference axis 1, the bottom edge of the guide block 5 can be aligned with the zero position of the second scale line 44, that is, Figure 2 When placed, when the guide block 5 is located at the extreme position on the lower side of the longitudinal positioning plate 4 , the bottom edge of the guide block 5 is aligned with the starting numerical position of the second scale line 44 .

[0083] The setting of the scale lines not only improves the efficiency of adjusting the positioning plate but also enhances the adjustment accuracy. The required adjustment scale can be clearly identified through these scale lines, avoiding the measurement errors that are prone to occur when using additional measuring tools. At the same time, the square guide block 5 restricts the directions of the horizontal and vertical positioning plates and also serves to read the scale. That is, the dimension corresponding to the left end of the guide block 5 is the scale dimension of the horizontal positioning plate 3, and the dimension corresponding to the lower end of the guide block 5 is the scale dimension of the vertical positioning plate 4. Herein, the zero position refers to the reference value set according to the actual situation, which is not necessarily the scale 0.

[0084] To enable the positioning plate to abut against the shaft more conveniently and accurately, the horizontal positioning plate 3 is provided with a first U-shaped groove 32 at the end abutting against the positioning shaft 2. The opening size of this first U-shaped groove 32 needs to be adapted to the outer diameter of the positioning shaft 2, that is, the horizontal positioning plate 3 can be inserted onto the positioning shaft 2 through the first U-shaped groove 32; the vertical positioning plate 4 is provided with a second U-shaped groove 42 at the end abutting against the reference shaft 1. The opening size of this second U-shaped groove 42 needs to be adapted to the outer diameter of the reference shaft 1, that is, the vertical positioning plate 4 can be inserted onto the reference shaft 1 through the second U-shaped groove 42. Of course, those skilled in the art can also design the shape of the abutting end of the positioning plate according to actual needs, as long as it can fit the shape of the corresponding shaft and is easy to abut, such as a semi-circular groove. In this embodiment, the opposite side edges of the horizontal positioning plate 3 where the first U-shaped groove 32 is opened are provided with protrusions 35, and the positions of the protrusions 35 are correspondingly set with the position of the first U-shaped groove 32 to ensure the strength of the horizontal positioning plate 3 at the bottom of the first U-shaped groove 32.

[0085] To operate the positioning plate more conveniently, a first handle 33 is provided at the end of the horizontal positioning plate 3 away from the positioning shaft 2, and a second handle 43 is provided at the end of the vertical positioning plate 4 away from the reference shaft 1. This can not only move the positioning plate more conveniently but also control the positioning plate more stably, avoiding the risk of slipping during use. In this embodiment, both the first handle 33 and the second handle 43 are square through holes. Of course, they can also be other shapes that are convenient to grip, such as oval through holes or circular through holes, etc. Those skilled in the art can freely set them according to actual needs.

[0086] In this embodiment, in order to fix the reference shaft 1 after it penetrates into the hinge hole 101 and the positioning shaft 2 after it penetrates into the balance ear seat hole 201 for convenient measurement.

[0087] Axially movable trapezoidal positioning sleeves 71 are provided at both axial ends of the reference shaft 1. The reference shaft 1 is a smooth shaft. The inner hole of the trapezoidal positioning sleeve 71 is a through hole that can be in clearance fit with the reference shaft 1. The outer diameter is a trapezoidal structure including a large-diameter section 711 and a small-diameter section 712. The large-diameter sections 711 of the trapezoidal positioning sleeves 71 at both ends of the reference shaft 1 are arranged opposite to each other. During installation, after the reference shaft 1 passes through the hinge holes 101 on both sides of the shield beam 30 and the trapezoidal positioning sleeves 71 in sequence, the trapezoidal positioning sleeves 71 are moved towards the hinge holes 101 on both sides respectively until the small-diameter section 712 penetrates into the hinge holes 101, and the step between the large-diameter section 711 and the small-diameter section 712 abuts against the outer side wall of the hinge holes 101, that is, the installation is in place. At the same time, in order to facilitate the penetration of the reference shaft 1, small shaft ends 11 with smaller diameters are provided at both ends thereof. The outer diameter size of the small-diameter section 712 needs to be adapted to the size of the hinge hole 101. When the size of the hinge hole 101 changes, it is also necessary to redesign the trapezoidal positioning sleeve 71 that is adapted thereto.

[0088] Axially movable conical positioning sleeves 72 are provided at both axial ends of the positioning shaft 2. The middle section of the positioning shaft 2 in contact with the transverse positioning plate 3 is a smooth shaft section 21, and both ends are threaded sections 22. The inner hole of the conical positioning sleeve 72 has an internal thread that can be screwed with the threaded section. The outer diameter is a conical structure, and this conical structure can better adapt to balance ear seat holes 201 of different sizes. The small-diameter ends of the conical structures of the two conical positioning sleeves 72 are arranged opposite to each other. During installation, first pass the positioning shaft 2 through the balance ear seat holes 201 on both sides, and then screw the two conical positioning sleeves 72 into the positioning shaft 2 from both ends respectively until the conical surface part of the conical structure of the conical positioning sleeve 72 enters the balance ear seat hole 201 and abuts against each other, that is, the installation is in place. At this time, the conical positioning sleeve 72 and the positioning shaft 2 are used in cooperation and have a locking function to prevent slipping. At the same time, in order to facilitate the screwing of the conical positioning sleeve 72, a hexagonal body operation part 721 is provided at the large-diameter end of its conical structure to facilitate some auxiliary tools to better clamp the conical positioning sleeve 72 and facilitate the application of force.

[0089] In this embodiment, a trapezoidal positioning sleeve 71 is used on the reference shaft 1, while a conical positioning sleeve 72 is used on the positioning shaft 2. This is because the aperture of the hinge hole 101 is generally large. If a conical positioning sleeve 72 is used, the size of the conical positioning sleeve 72 will also be relatively large, and it is not very convenient to operate when screwing with the reference shaft 1. Therefore, a trapezoidal positioning sleeve 71 that can directly move in clearance fit with the shaft is selected; while the aperture of the balance ear seat hole 201 is generally small, so a conical positioning sleeve 72 is selected, which can adapt to different models of balance ears 20 and has higher adaptability.

[0090] Meanwhile, in this embodiment, two sets of positioning shafts 2, transverse positioning plates 3, and longitudinal positioning plates 4 are arranged in parallel along the axial direction of the reference shaft 1 to facilitate the simultaneous adjustment of two sets of balance ear seat holes 201 opposite to the hinge holes 101, with higher efficiency. Of course, the present invention is not limited to this, and those skilled in the art can set one set or multiple sets according to actual needs. This assembly positioning mechanism has a simple structure, strong flexibility and adaptability, low manufacturing cost, and is easy to use. It is a general tooling that can be reused for the positioning of balance ear seats during the assembly of structural members such as the top beam and the shield beam, and can achieve the purpose of improving quality, reducing costs, and increasing efficiency.

[0091] In this embodiment, it is preferably that the middle section of the reference shaft 1 is machined from a steel pipe, with a diameter size of φ62mm / φ94mm; both ends of the positioning shaft 2 are machined with coarse threads, with a diameter size of φ40mm; the transverse positioning plate 3 is machined from a steel plate with a thickness of 8mm, the width of the first U-shaped groove 32 is 40mm, and the width of the first long circular hole 31 is 12mm; the longitudinal positioning plate 4 is also machined from a steel plate with a thickness of 8mm, the width of the second U-shaped groove 42 is 62mm / 92mm, and the width of the second long circular hole 41 is 12mm; the small diameter section 712 of the trapezoidal positioning sleeve 71 is machined from a steel pipe; the inner side of the conical positioning sleeve 72 is a coarse thread structure adapted to the thread on the positioning shaft 2, and the conical positioning sleeve 72 can adapt to a pore diameter range of φ50mm - φ100mm.

[0092] As Figures 1 to 3 , the assembly positioning method shown in this embodiment specifically includes the following steps:

[0093] S1: Horizontally place the shield beam 30 with the end connected to the balance ear seat 20 facing upward, and place the balance ear seat 20 on the plane of the shield beam 30 for installing the balance ear seat 20 to complete the rough adjustment of the balance ear seat 20.

[0094] S2: Sequentially insert the reference shaft 1 into the hinge holes 101 of each rib plate on the shield beam 30.

[0095] S3: Sequentially insert the positioning shaft 2 into the two balance ear seat holes 201 on the balance ear seat 20.

[0096] S4: Slide and adjust the positional relationship between the transverse positioning plate 3 and the longitudinal positioning plate 4 so that the distance from the center point of their cross-sliding connection to the abutting end of the transverse positioning plate 3 is equal to the horizontal distance between the hinge hole 101 and the balance ear seat hole 201, and the distance from the center point to the abutting end of the longitudinal positioning plate 4 is equal to the vertical distance between the hinge hole 101 and the balance ear seat hole 201.

[0097] S5: Ensure that the positional relationship between the horizontal positioning plate 3 and the vertical positioning plate 4 remains unchanged. Vertically abut the abutting end of the vertical positioning plate 4 against the reference shaft 1 and adjust it axially so that the positional relationship between the vertical positioning plate 4 and each hinge hole 101 is the same as the positional relationship between the midpoint of the two balance ear seat holes 201 and each hinge hole 101.

[0098] S6: Move the balance ear seat 20 so that the middle position of the positioning shaft (2) abuts against the abutting end of the horizontal positioning plate 3 to complete the fine adjustment of the balance ear seat 20.

[0099] S7: Based on the position of the balance ear seat 20 after fine adjustment, fixedly install it on the shield beam 30 and remove the assembly positioning mechanism.

[0100] The following elaborates on each step in detail:

[0101] Regarding step S1:

[0102] In this embodiment, place the shield beam 30 on a horizontal ground. At this time, the installation surface of the shield beam 30 for installing the balance ear seat 20 faces upward horizontally. Based on the position and direction of the balance ear seat 20 given in the design drawing, hoist the balance ear seat 20 to this installation plane to complete the rough adjustment of the balance ear seat 20.

[0103] Regarding step S2:

[0104] In this embodiment, a reference shaft 1 is sequentially inserted through the hinge holes 101 of each rib plate on the shield beam 30, and trapezoidal positioning sleeves 71 are respectively inserted into two hinge holes 101 near the shaft ends (i.e., the two outermost hinge holes 101) to fix the reference shaft 1. The trapezoidal positioning sleeve 71 is sleeved on the outer periphery of the reference shaft 1. The small-diameter section 712 is inserted into the hinge hole 101, and its outer peripheral wall abuts against the inner peripheral wall of the hinge hole 101. The step between its large-diameter section 711 and the small-diameter section 712 abuts against the outer wall in the axial direction of the hole where it is located. To prevent the trapezoidal positioning sleeve 71 from falling off during the installation process and causing safety accidents, in this embodiment, the large-diameter sections 711 of the trapezoidal positioning sleeves 71 provided at both ends of the reference shaft 1 are arranged oppositely, that is, they are arranged inside the two outermost rib plates, and are inserted into the hinge holes 101 from the inside to the outside. Therefore, during installation, the two trapezoidal positioning sleeves 71 can be pre-placed inside the two outermost rib plates of the shield beam 30, and the large-diameter sections 711 of the two trapezoidal positioning sleeves 71 are arranged oppositely. When placing the trapezoidal positioning sleeve 71, align its inner hole with the hinge hole 101, and then insert the reference shaft 1 sequentially through each hinge hole 101 and the inner hole of the trapezoidal positioning sleeve 71. Then, move the two trapezoidal positioning sleeves 71 respectively along the axis towards the hinge holes 101 on their respective sides until the small-diameter section 712 is inserted into the hinge hole 101, and the step between the large-diameter section 711 and the small-diameter section 712 abuts against the outer wall of the hinge hole 101, that is, the installation is in place. At this time, through the clearance fit between the reference shaft 1 and the two trapezoidal positioning sleeves 71, the reference shaft 1 is fixed on the shield beam 30.

[0105] Regarding step S3:

[0106] In this embodiment, the positioning shaft 2 is inserted into the balance ear seat hole 201, and tapered positioning sleeves 72 are respectively inserted into the two balance ear seat holes 201 to fix the positioning shaft 2. When inserting the tapered positioning sleeves 72, the small-diameter ends of the tapered structures of the two tapered positioning sleeves 72 are arranged oppositely. By rotating the hexagonal operation part 721 on the tapered positioning sleeve 72, they are respectively screwed into the positioning shaft 2 from both ends of the positioning shaft 2 (i.e., sleeved on the outer periphery of the positioning shaft 2) until the conical surface part of the tapered structure on the outer peripheral wall of the tapered positioning sleeve 72 enters the balance ear seat hole 201 and abuts against the inner peripheral wall of the balance ear seat hole 201, that is, the installation is in place. At this time, through the abutment of the tapered positioning sleeves 72 at both ends, the positioning shaft 2 is fixed on the balance ear seat 20. The balance ear seat 20 shown in this embodiment has two balance ear seat holes 201, so the tapered positioning sleeves 72 can be directly inserted into these two holes. However, if encountering a balance ear seat 20 with multiple balance ear seat holes 201, only the tapered positioning sleeves 72 need to be inserted into the two balance ear seat holes 201 near the shaft ends.

[0107] Regarding step S4:

[0108] In this embodiment, the horizontal positioning plate 3 and the vertical positioning plate 4 are vertically stacked in the cross-shaped groove 51, and the three are fixed at the position of the round hole 52 of the guiding block 5 by using the fastener 6, that is, the horizontal positioning plate 3, the vertical positioning plate 4 and the guiding block 5 are fixed by the fastener 6. Based on the design dimensions and the scales on the positioning plates, the positional relationship between the horizontal positioning plate 3 and the vertical positioning plate 4 is slidably adjusted. The first handle 33 is pulled to operate the horizontal positioning plate 3 to slide horizontally in the cross-shaped groove 51 of the guiding block 5 (i.e., the fastener 6 slides in the first oblong hole 31), and the second handle 43 is pulled to operate the vertical positioning plate 4 to slide vertically in the cross-shaped groove 51 (i.e., the fastener 6 slides in the second oblong hole 41), so as to realize the sliding adjustment between the horizontal positioning plate 3 and the vertical positioning plate 4.

[0109] Make the distance from the guiding block 5 (i.e., the center point of the cross-shaped sliding connection between the horizontal positioning plate 3 and the vertical positioning plate 4) to the first U-shaped groove 32 of the horizontal positioning plate 3 (i.e., the value of the side of the guiding block 5 corresponding to the first scale line 34 on the horizontal positioning plate 3) equal to the horizontal distance between the hinge hole 101 and the balance ear seat hole 201; make the distance from the guiding block 5 (i.e., the center point of the cross-shaped sliding connection between the horizontal positioning plate 3 and the vertical positioning plate 4) to the second U-shaped groove 42 of the vertical positioning plate 4 (i.e., the value of the side of the guiding block 5 corresponding to the second scale line 44 on the vertical positioning plate 4) equal to the vertical distance between the hinge hole 101 and the balance ear seat hole 201. After the adjustment is completed, tighten the fastener 6 to fix the horizontal positioning plate 3 and the vertical positioning plate 4.

[0110] Regarding step S5:

[0111] In this embodiment, ensure that the positional relationship between the pre-adjusted horizontal positioning plate 3 and the vertical positioning plate 4 in step S4 remains unchanged. The vertical positioning plate 4 is inserted onto the reference shaft 1 in the vertical direction through the second U-shaped groove 42 to achieve the abutment between the vertical positioning plate 4 and the reference shaft 1, and then the horizontal positioning plate 3 and the vertical positioning plate 4 are adjusted axially together, so that the positional relationship between the vertical positioning plate 4 and each hinge hole 101 is the same as the positional relationship between the midpoint of the two balance ear seat holes 201 and each hinge hole 101 (i.e., adjust the axial position of the balance ear seat 20 on the shield beam 30 and ensure that the axial distances between each balance ear seat hole 201 on the balance ear seat 20 and each hinge hole 101 on the shield beam 30 are accurate).

[0112] Regarding step S6:

[0113] In this embodiment, for the mobile balance ear seat 20, the middle position of the positioning shaft 2 (i.e., the middle position between the two balance ear seat holes 201 on the balance ear seat 20) is inserted into the first U-shaped groove 32 of the horizontal positioning plate 3 to achieve the abutment between the positioning shaft 2 and the horizontal positioning plate 3. (If it is inconvenient to abut due to the presence of balance ear seat holes 201 at the middle position of the positioning shaft 2, a convenient abutment position of the positioning shaft 2 can be selected, and only a certain numerical conversion needs to be performed when determining the distance.) Then, through the first scale line 34 on the horizontal positioning plate 3 and the second scale line 44 on the vertical positioning plate 4, it is confirmed that the positional relationship and design dimensions between the shield beam 30 and the balance ear seat 20 are correct, and the fine adjustment of the balance ear seat 20 is completed.

[0114] Regarding step S7:

[0115] In this embodiment, after determining the position of the balance ear seat 20, it is fixedly installed on the shield beam 30 by welding, and the used assembly positioning mechanism is removed, thus completing the positioning installation of the balance ear seat 20 on the shield beam 30.

[0116] In this embodiment, two balance ear seats 20 need to be positioned and installed on the shield beam 30. Therefore, two sets of the positioning shaft 2, the horizontal positioning plate 3, and the vertical positioning plate 4 can be arranged in parallel along the axial direction of the reference shaft 1 for synchronous operation, which is more efficient.

[0117] Embodiment 2:

[0118] A method for assembling and positioning structural components of a hydraulic support proposed in this embodiment is different from that of Embodiment 1 in that trapezoidal positioning sleeves 71 are selected at both ends of the reference shaft 1 and the positioning shaft 2, and the other parts are the same as those in Embodiment 1, so no further description will be given here.

[0119] In this embodiment, trapezoidal positioning sleeves 71 are selected because when trapezoidal positioning sleeves 71 are selected, the machining of the reference shaft 1 and the positioning shaft 2 is simpler, without the need to machine threaded sections. At the same time, it is relatively easy to install the trapezoidal positioning sleeves 71, and they only need to be pushed into the holes. Whether it is for the machining of the assembly positioning mechanism itself or during the use process, it is more convenient. However, the adaptability of this method is relatively low and is more suitable for situations where the aperture sizes of the hinge hole 101 and the balance ear seat hole 201 do not need to be frequently adjusted.

[0120] Embodiment 3:

[0121] A method for assembling and positioning structural components of a hydraulic support proposed in this embodiment is different from that of Embodiment 1 in that tapered positioning sleeves 72 are selected at both ends of the reference shaft 1 and the positioning shaft 2, and the other parts are the same as those in Embodiment 1, so no further description will be given here.

[0122] In this embodiment, the conical positioning sleeve 72 is selected because it has higher adaptability and can adapt to different aperture sizes at the same time. Although the production and processing of a single assembled positioning mechanism will be slightly more complex, there is no need to frequently produce trapezoidal positioning sleeves 71 of different models. This method is more suitable for the situation where the aperture sizes of the hinge hole 101 and the balance ear seat hole 201 will be frequently adjusted.

[0123] Of course, the present invention is not limited to the above embodiments. For the selection of the positioning sleeve 7, those skilled in the art can select according to actual needs. However, the positioning sleeves 7 on the same axis should be consistent and arranged in pairs. At the same time, the structures of the reference shaft 1 and the positioning shaft 2 also need to be set in accordance with the selected positioning sleeve 7. That is, when using the trapezoidal positioning sleeve 71, the shaft where it is located should be a smooth shaft; when using the conical positioning sleeve 72, the shaft where it is located should be in the form of a smooth shaft section 21 in the middle section in contact with the positioning plate and threaded sections 22 at both ends.

[0124] The assembly positioning method for the structural members of a hydraulic support shown in the present invention is not limited to the above embodiments and can also be used for the assembly positioning of other components positioned by two axially parallel positioning holes. It only needs to be noted that the dimensions of the reference shaft 1, the positioning shaft 2, and the positioning sleeve 7 need to be adapted to the dimensions of the positioning holes on the components used.

[0125] In the description of the present invention, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0126] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0127] In the present invention, unless otherwise clearly specified or limited, a first feature being "on" or "under" a second feature may mean that the first and second features are in direct contact, or the first and second features are indirectly in contact via an intermediate medium. Moreover, a first feature being "above", "over" and "on top of" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. A first feature being "under", "below" and "beneath" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0128] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples", etc., mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0129] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An assembly positioning method for structural components of a hydraulic support, characterized in that, The following assembling and positioning mechanism is used to position and install the balance ear seat (20) on the structural beam (10) of a hydraulic support. The structural beam (10) is a shield beam (30) or a top beam (40). The assembling and positioning mechanism includes a reference shaft (1), a positioning shaft (2), a transverse positioning plate (3), and a longitudinal positioning plate (4). The transverse positioning plate (3) and the longitudinal positioning plate (4) are slidably connected in a cross shape, and both have an abutting end. It includes the following steps: S1: Horizontally place the structural beam (10) with the end for connecting to the balance ear seat (20) facing upward, and place the balance ear seat (20) on the plane of the structural beam (10) for installing the balance ear seat (20) to complete the rough adjustment of the balance ear seat (20). S2: Sequentially insert a reference shaft (1) into the hinge holes (101) of each rib plate on the structural beam (10). S3: Sequentially insert a positioning shaft (2) into each balance ear seat hole (201) on the balance ear seat (20). S4: Slide and adjust the positional relationship between the transverse positioning plate (3) and the longitudinal positioning plate (4) so that the distance from the center point of their cross-shaped sliding connection to the abutting end of the transverse positioning plate (3) is equal to the horizontal distance between the hinge hole (101) and the balance ear seat hole (201), and the distance from the center point to the abutting end of the longitudinal positioning plate (4) is equal to the vertical distance between the hinge hole (101) and the balance ear seat hole (201). S5: Ensure that the positional relationship between the transverse positioning plate (3) and the longitudinal positioning plate (4) remains unchanged. Vertically abut the abutting end of the longitudinal positioning plate (4) against the reference shaft (1) and adjust it axially so that the positional relationship between the longitudinal positioning plate (4) and each hinge hole (101) is the same as the positional relationship between the midpoint of each balance ear seat hole (201) in the axial direction and each hinge hole (101). S6: Move the balance ear seat (20) so that the middle position of the positioning shaft (2) abuts against the abutting end of the transverse positioning plate (3) to complete the fine adjustment of the balance ear seat (20). S7: Based on the position of the balance ear seat (20) after fine adjustment, fixedly install it on the structural beam (10) and remove the assembling and positioning mechanism.

2. The assembling and positioning method for structural components of a hydraulic support according to claim 1, characterized in that a guide block (5) and a fastener (6) are provided at the center point position where the transverse positioning plate (3) and the longitudinal positioning plate (4) are slidably connected in a cross shape; the guide block (5) is a square structure with a cross-shaped groove (51), and a round hole (52) is provided at the center position of the cross-shaped groove (51); a first oblong hole (31) along its length direction is provided in the middle of the transverse positioning plate (3), and a second oblong hole (41) along its length direction is provided in the middle of the longitudinal positioning plate (4); In step S4, the transverse positioning plate (3) and the longitudinal positioning plate (4) are vertically stacked in the cross-shaped groove (51), and the three are fixed at the position of the round hole (52) using the fastener (6). Through the sliding of the fastener (6) in the first oblong hole (31) and the second oblong hole (41), the sliding adjustment between the transverse positioning plate (3) and the longitudinal positioning plate (4) is realized.

3. A method for assembling and positioning structural components of a hydraulic support according to claim 2, characterized in that The transverse positioning plate (3) and the longitudinal positioning plate (4) are respectively provided with a first scale line (34) and a second scale line (44) along the length direction; In step S4, the positional relationship between the transverse positioning plate (3) and the longitudinal positioning plate (4) can be determined by the values of the first scale line (34) and the second scale line (44); Among them, the length of the first scale line (34) is greater than or equal to the length of the first oblong hole (31), and its position is offset by 1 / 2 of the width of the guide block (5) towards the abutting end direction. When the guide block (5) slides to the position closest to the abutting end of the first oblong hole (31), the side of the guide block (5) just aligns with the zero position of the first scale line (34). Based on this position, the position of the transverse positioning plate (3) relative to the guide block (5) is adjusted; The length of the second scale line (44) is greater than or equal to the length of the second oblong hole (41), and its position is offset by 1 / 2 of the width of the guide block (5) towards the abutting end direction. When the guide block (5) slides to the position closest to the abutting end of the second oblong hole (41), the side of the guide block (5) just aligns with the zero position of the second scale line (44). Based on this position, the position of the longitudinal positioning plate (4) relative to the guide block (5) is adjusted; After adjusting the positions of the transverse positioning plate (3) and the longitudinal positioning plate (4), tighten the fastening member (6) to fix their relative positions.

4. A method for assembling and positioning structural components of a hydraulic support according to claim 1, characterized in that The abutting end of the transverse positioning plate (3) is provided with a first U-shaped groove (32), and the abutting end of the longitudinal positioning plate (4) is provided with a second U-shaped groove (42); In step S5, the longitudinal positioning plate (4) is inserted into the reference shaft (1) through the second U-shaped groove (42); In step S6, move the balance ear seat (20), and insert the positioning shaft (2) into the first U-shaped groove (32) of the transverse positioning plate (3).

5. A method for assembling and positioning structural components of a hydraulic support according to claim 1, characterized in that One side of the transverse positioning plate (3) away from its abutting end is provided with a first handle (33); One side of the longitudinal positioning plate (4) away from its abutting end is provided with a second handle (43); Both the first handle (33) and the second handle (43) are square through holes; In step S4, the positional relationship between the transverse positioning plate (3) and the longitudinal positioning plate (4) is adjusted by pulling the first handle (33) and the second handle (43) to slide.

6. A method for assembling and positioning structural components of a hydraulic support according to claim 1, characterized in that, The assembly positioning mechanism is further provided with a positioning sleeve (7) with an annular structure; In step S2, after the reference shaft (1) penetrates through each hinge hole (101), the positioning sleeve (7) is respectively inserted into two hinge holes near the shaft end to fix the reference shaft (1). The positioning sleeve (7) is sleeved on the outer periphery of the reference shaft (1), and its outer peripheral wall abuts against the inner peripheral wall of the hinge hole (101); In step S3, after the positioning shaft (2) penetrates into the balance ear seat hole (201), positioning sleeves (7) are respectively inserted into two balance ear seat holes (201) near the shaft ends to fix the positioning shaft (2). The positioning sleeve (7) is sleeved on the outer periphery of the positioning shaft (2), and the outer peripheral wall thereof abuts against the inner peripheral wall of the balance ear seat hole (201).

7. A method for assembling and positioning structural members of a hydraulic support according to claim 6, characterized in that the positioning sleeve (7) is a trapezoidal positioning sleeve (71) or a conical positioning sleeve (72); When using the trapezoidal positioning sleeve (71), the shaft where it is located is a smooth shaft. The inner hole of the trapezoidal positioning sleeve (71) is a through hole that can be in clearance fit with the shaft where it is located. The outer diameter is a trapezoidal structure including a large diameter section (711) and a small diameter section (712). The small diameter section (712) can be inserted into the hinge hole (101) or the balance ear seat hole (201), and the step between the large diameter section (711) and the small diameter section (712) abuts against the outer wall in the axial direction of the hole where it is located; When using the conical positioning sleeve (72), the middle section of the shaft where it is located in contact with the longitudinal positioning plate (4) or the transverse positioning plate (3) is a smooth shaft section (21). Both ends of the shaft where it is located are threaded sections (22). The inner hole of the conical positioning sleeve (72) is an internal threaded hole that can be screwed with the threaded section (22), and the outer peripheral wall is a conical structure. The conical structure can be partially inserted into the hinge hole (101) or the balance ear seat hole (201) and abut against the inner wall of the hole where it is located.

8. A method for assembling and positioning structural members of a hydraulic support according to claim 7, characterized in that in step S2, the trapezoidal positioning sleeve (71) is used, and the large diameter sections (711) of the trapezoidal positioning sleeves (71) provided at both ends of the reference shaft (1) are arranged oppositely; in step S3, the conical positioning sleeve (72) is used, and the small diameter ends of the conical structures of the conical positioning sleeves (72) provided at both ends of the positioning shaft (2) are arranged oppositely.

9. A method for assembling and positioning structural members of a hydraulic support according to claim 8, characterized in that a hexagonal operation part (721) is provided at the large diameter end of the conical structure of the conical positioning sleeve (72); in step S3, the conical positioning sleeve (72) is screwed into the balance ear seat hole (201) by rotating the hexagonal operation part (721).

10. A method for assembling and positioning structural members of a hydraulic support according to any one of claims 1-9, characterized in that when multiple balance ears (20) need to be positioned and installed on the structural beam (10), multiple groups of the positioning shaft (2), the transverse positioning plate (3), and the longitudinal positioning plate (4) can be arranged in parallel along the axial direction of the reference shaft (1) and have the same number as the balance ears (20).

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