A counter-force system construction method for replacing a space cable net

Abstract

The application discloses a counterforce system construction method for spatial cable net replacement and belongs to the technical field of cable replacement, and solves the problem that a counterforce system cannot be constructed on a node disc at present. The counterforce system construction method comprises a counterforce seat, a connecting plate, an adjusting plate and a positioning assembly. The construction method comprises the following steps: S1, on the node disc, a counter direction cable of a cable to be replaced is in a straight line direction with the cable to be replaced, a positioning assembly is installed away from the counter direction cable, the positioning assembly is temporarily fixed on the node disc, S2, adjusting plates are installed on the upper and lower sides of the positioning assembly, and the positioning assembly is temporarily locked, S3, connecting plates are installed on the adjusting plates on the upper and lower sides, the connecting plate convex platform surface of the connecting plate is adjusted to be perpendicular to the center line of the cable to be replaced, and then the connecting plate is fixed, and S4, counterforce seats are installed on the upper and lower connecting plates away from the counter direction cable. The counterforce system construction method can quickly construct a counterforce system on a node disc and realize quick replacement of a spatial cable net.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable replacement, more particularly, it relates to a counterforce system construction method for space cable net replacement. BACKGROUND

[0002] The world's first 500-meter aperture spherical radio telescope (FAST) has been in use for many years. With the passage of time, the cables will face the problem of cable replacement within the design service life of the main structure of the cable net due to the effects of real-time dynamic high stress amplitude and natural environment corrosion.

[0003] In the prior art, patent number CN202111654173.1 discloses a cable replacement method for a space cable net supporting structure. The replacement method needs to set a cable force conversion device and a cable replacement device. The cable force conversion device is provided with a counterforce plate on the opposite cable fork ears of the node disc on both sides of the cable to be replaced, and a tensioning device is provided at one end. The cable replacement device is provided with a counterforce plate on the fork ear at one end of the cable to be replaced (opposite the cable force conversion device), and a counterforce plate is provided on the cable fork ear corresponding to the node disc, and a tensioning device is installed on the counterforce plate. By first tensioning the cable replacement device, the stress of the fork anchor at one end of the cable to be replaced is transferred to the cable replacement device; then the cable force conversion device is tensioned, and at the same time the cable force of the tensioning device is released, so that the stress of the tensioning device is stably transferred to the cable force conversion device; the cable replacement device and the cable replacement device component on the cable to be replaced are disassembled; a new cable is replaced, one end of the new cable is provided with a node disc, and the other end of the new cable is provided with a cable replacement device component; then the cable replacement device is tensioned, and at the same time the cable force of the cable force conversion device is released, so that the cable force of the cable force conversion device is stably transferred to the tensioning device; after the cable force is converted, the new cable fork ear returns to the node disc positioning hole, the pin is inserted into the new cable fork ear, and then the cable force of the tensioning device is released, so that the cable force is stably transferred to the new cable, that is, the installation of the new cable is completed.

[0004] The FAST main cable net is composed of 6670 main cables and 2225 node discs in a spherical shape with a diameter of 500 meters. The above-mentioned patent technology requires that the cable to be replaced and the relative fixed counterforce plate should be in a straight line or within a certain angle to achieve the replacement. When the two cables are tensioned, the position between the cable to be replaced and the two node discs changes or the angle between the cables changes, which may cause instability of the entire cable replacement model and easily cause hidden dangers. For the entire spherical cable net, the horizontal and vertical coordinates between the node discs are diverse, and the relative angles of the cables on the node discs are diverse. The above-mentioned patent technology cannot perform the cable replacement operation.

[0005] Therefore, providing counterforce support by the node disc becomes a feasible scheme. However, how to construct a counterforce system on the node disc is a design difficulty for space cable replacement. SUMMARY

[0006] The technical problem solved by the present application is to overcome the above-mentioned deficiencies of the prior art, and the purpose of the present application is to provide a counterforce system construction method for spatial cable net replacement, which can quickly construct a counterforce system on a node disc to realize rapid replacement of a spatial cable net.

[0007] In order to achieve the above-mentioned purpose, the present application provides a counterforce system construction method for spatial cable net replacement, comprising a counterforce seat, a linking plate, an adjusting plate and a positioning assembly.

[0008] The construction method comprises the following steps:

[0009] S1, on the node disc, at a position where the direction of the opposite cable of the cable to be replaced is in a straight line with the cable to be replaced, a positioning assembly is installed away from the opposite cable, so that the positioning assembly is temporarily fixed on the node disc;

[0010] S2, adjusting plates are installed on the upper and lower sides of the positioning assembly, and the positioning assembly is temporarily locked;

[0011] S3, linking plates are installed on the adjusting plates on the upper and lower sides, the linking plate boss surface of the adjusting plate is adjusted to be perpendicular to the center line of the cable to be replaced, and then the linking plate is fixed;

[0012] S4, counterforce seats are installed on the upper and lower linking plates away from the opposite cable, so that the counterforce seats are connected with the linking plates, the adjusting plates and the positioning assembly to form an integral whole, and the construction of the counterforce system is completed.

[0013] Further, the positioning assembly comprises a stand, and the stand is respectively provided with an adjusting screw, a stand arc surface A, a stand arc surface B and a stand arc surface C on the upper and lower sides; the step S1 comprises the following specific steps:

[0014] S1.1, on the node disc, at a position where the direction of the opposite cable of the cable to be replaced is in a straight line with the cable to be replaced, at least two stands are installed away from the opposite cable, so that the stand arc surface C of each stand is attached to the outer wall of the node disc;

[0015] S1.2, the adjusting screws on the upper and lower sides of the stand are adjusted, and the adjusting screws are reversely abutted on the upper and lower sides of the node disc, so that the stand is temporarily fixed on the node disc.

[0016] Further, in the step S1.1, at least one stand is installed at an equidistant position on both sides of the center line of the cable to be replaced.

[0017] Further, the opposite side surface of each adjusting plate is provided with an arc-shaped adjusting groove, and the step S2 comprises the following specific steps:

[0018] S2.1, the adjusting groove of the adjusting plate is sleeved on the upper and lower sides of all the stands, so that the adjusting plate arc surface B and the adjusting plate arc surface C in the adjusting groove are respectively attached to the stand arc surface A and the stand arc surface B of the stand;

[0019] S2.2, rotate the adjusting plate along the adjusting groove to adjust the position of the adjusting plate, so that the bolt hole on the adjusting plate is aligned with the position of the corresponding threaded hole on the top of the column;

[0020] S2.3, threadedly connect the bolt hole on the adjusting plate with the corresponding threaded hole on the top of the column by using a fastening bolt, and temporarily lock the column.

[0021] Further, the adapter plate is provided with an adapter plate arc surface, the adjusting plate is provided with arc-shaped threaded holes and an adjusting plate arc surface A, and the step S3 includes the following specific steps.

[0022] S3.1, place an adapter plate on each of the upper and lower adjusting plates, so that the adapter plate arc surface is attached to the adjusting plate arc surface A;

[0023] S3.2, rotate the adapter plate along the outer wall of the adjusting plate to adjust the position of the adapter plate, so that the adapter plate boss surface of the adapter plate is perpendicular to the center line of the cable to be replaced;

[0024] S3.3, threadedly connect the bolt hole on the adapter plate with the threaded hole on the adjusting plate by using a fastening bolt, and fix the adapter plate.

[0025] Further, in the step S3.2, if the position of the adapter plate cannot be adjusted along the outer wall of the adjusting plate so that the adapter plate boss surface of the adapter plate is perpendicular to the center line of the cable to be replaced, then the connection between the adjusting plate and the column and the connection between the column and the node disc are loosened, the position of the column relative to the node disc is readjusted until the adapter plate boss surface of the adapter plate is perpendicular to the center line of the cable to be replaced, and then the adjusting plate and the column and the node disc are connected and fixed.

[0026] Further, the counterforce seat includes two fixed plates and two pull struts Ⅲ, and the step S4 includes the following specific steps.

[0027] S4.1, fixedly install one fixed plate on each of the two adapter plates, so that the two fixed plates are erected in parallel on the upper and lower sides of the opposite cable;

[0028] S4.2, fixedly install two pull struts Ⅲ at the two ends of the two fixed plates, so that the two pull struts Ⅲ are erected in parallel on the left and right sides of the opposite cable, and the fixed plate, the pull strut Ⅲ, the adapter plate, the adjusting plate and the positioning assembly are connected to form a whole, and the counterforce system construction is completed.

[0029] Further, the counterforce seat further includes at least one pull strut Ⅰ and pull strut Ⅱ, and the step S4 further includes a step S4.3 of installing the pull strut Ⅰ and the pull strut Ⅱ on the rear side of the two fixed plates, avoiding the opposite cable.

[0030] Further, in the step S4.3, at least one pull strut Ⅰ or pull strut Ⅱ is installed at equidistant positions on the left and right sides of the opposite cable.

[0031] Further, the tensioning plate I, the tensioning plate II and the tensioning plate III are connected with the fixing plate through the fastening bolt fastening mode matched with the clamping groove and the boss.

[0032] Beneficial effects

[0033] Compared with the prior art, the present application has the advantages of:

[0034] 1. The counterforce system construction method of the present application meets the installation of any node disc on the cable net without changing the cable force on the original cable net and node disc, is not affected by the cable angle on the node disc, and can face any cable to be replaced by adjusting and providing counterforce support, has a small impact on the cable net structure, does not damage the node disc and other cables, has the characteristics of high work efficiency and low construction cost, can quickly build a counterforce system on the node disc, and realizes the replacement of the spatial cable net.

[0035] 2. The counterforce seat of the present application adopts a split counterforce seat structure, which can quickly install the counterforce seat at different positions of the node disc to realize the replacement of all cables of the spatial cable net.

[0036] 3. The present application adopts a plurality of split column structures and a column arc surface C structure, which can adjust the position of the column during installation, meet the different cable angles on the node disc, avoid the opposite cable under the condition that the cable to be replaced and the opposite cable have a spatial angle, accurately adjust the angle, realize the quick positioning and clamping of the counterforce system on the node disc, and use the upper and lower adjusting screws to clamp the node disc, which can be suitable for positioning and clamping of node discs of different thicknesses.

[0037] 4. The present application adopts a detachable locking assembly to lock the positioning assembly, which can directly sleeve the two adjusting plates on the positioning assembly during installation, and then lock the two adjusting plates by using the locking structure, loosen the locking structure when disassembling, take away the two adjusting plates, adjust the position of the positioning assembly, disassemble and assemble very conveniently, quickly transfer the counterforce system to different positions of the node disc, and effectively improve the construction efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 is a structural diagram of the counterforce seat in the present application;

[0039] Figure 2 is a structural diagram of the front side of the fixing plate in the present application;

[0040] Figure 3 is a structural diagram of the back side of the fixing plate in the present application;

[0041] Figure 4 is a structural diagram of the tensioning plate III in the present application;

[0042] Figure 5 Figure 1 is a structural schematic diagram of the tensioning plate I in the present application;

[0043] Figure 6 Figure 2 is a structural schematic diagram of the tensioning plate II in the present application;

[0044] Figure 7 Figure 3 is a structural schematic diagram of one of the uprights in the present application;

[0045] Figure 8 Figure 4 is a structural schematic diagram of another of the uprights in the present application;

[0046] Figure 9 Figure 5 is a structural schematic diagram of one side of the adjusting plate in the present application;

[0047] Figure 10 Figure 6 is a structural schematic diagram of the other side of the adjusting plate in the present application;

[0048] Figure 11 Figure 7 is a structural schematic diagram of the locking assembly in the present application;

[0049] Figure 12 Figure 8 is a structural schematic diagram of the counter-force device in the present application;

[0050] Figure 13 Figure 9 is a structural schematic diagram of one side when the present application is applied;

[0051] Figure 14 Figure 10 is a structural schematic diagram of the other side when the present application is applied;

[0052] Figure 15 Figure 11 is a structural schematic diagram of one side of the connecting plate in the present application;

[0053] Figure 16 Figure 12 is a structural schematic diagram of the other side of the connecting plate in the present application.

[0054] Wherein: 1 - upright, 1.1 - upright arc surface A, 1.2 - upright arc surface B, 1.3 - upright arc surface C, 1.4 - clamping seat, 1.5 - limiting shoulder, 1.6 - reinforcing plate, 2 - adjusting screw, 3 - adjusting plate, 3.1 - adjusting plate arc surface A, 3.2 - adjusting plate arc surface B, 3.3 - adjusting plate arc surface C, 4 - connecting plate, 4.1 - connecting plate arc surface, 4.2 - connecting plate boss surface, 5 - tensioning plate III, 6 - fixing plate, 6.1 - fixing plate groove surface, 6.2 - temporary cable hole, 6.3 - positioning hole, 6.4 - first through hole, 6.5 - first sink groove, 7 - tensioning plate II, 8 - tensioning plate I, 9 - node disc, 10 - counter cable, 10.1 - cable to be replaced, 11 - temporary cable, 12 - avoiding hole, 13 - fastening bolt, 14 - boss, 15 - clamping groove, 16 - clamping seat, 17 - threaded hole, 18 - adjusting screw hole, 19 - adjusting groove, 20 - bolt hole. DETAILED DESCRIPTION

[0055] The application will be further described below in connection with the specific embodiments in the drawings.

[0056] Referring to Figures 1-16

[0057] A counterforce system construction method for replacing a space cable net, comprising a counterforce seat, a connecting plate 4, an adjusting plate 3 and a positioning assembly; the construction method comprises the following steps:

[0058] S1, on the node disc 9, at the position where the direction of the opposite cable 10 to the cable to be replaced 10.1 is straight with the cable to be replaced 10.1, the positioning assembly is installed away from the opposite cable 10, and the positioning assembly is temporarily fixed on the node disc 9;

[0059] S2, the adjusting plate 3 is installed on the upper and lower sides of the positioning assembly, and the positioning assembly is temporarily locked;

[0060] S3, the connecting plate 4 is installed on the adjusting plate 3 on the upper and lower sides, the connecting plate boss surface 4.2 of the connecting plate 4 is adjusted to be perpendicular to the center line of the cable to be replaced 10.1, and then the connecting plate 4 is fixed;

[0061] S4, on the upper and lower connecting plates 4, the counterforce seat is installed away from the opposite cable 10, the counterforce seat is connected with the connecting plate 4, the adjusting plate 3 and the positioning assembly to form an integral whole, and the counterforce system construction is completed.

[0062] Preferably, the positioning assembly comprises a stand column 1, the stand column 1 is respectively provided with an adjusting screw 2, a stand column arc surface A1.1, a stand column arc surface B1.2 and a stand column arc surface C1.3 on the upper and lower sides; step S1 comprises the following specific steps:

[0063] S1.1, on the node disc 9, at the position where the direction of the opposite cable 10 to the cable to be replaced 10.1 is straight with the cable to be replaced 10.1, at least two stand columns 1 are installed away from the opposite cable 10, the stand column arc surface C1.3 of each stand column 1 is attached to the outer wall of the node disc 9, and for different specifications of the node disc 9, 2-4 stand columns 1 can be installed according to different forces of the cable to be replaced 10.1 and different offset angles with the opposite cable 10;

[0064] S1.2, the adjusting screws 2 on the upper and lower sides of the stand column 1 are adjusted, and the adjusting screws 2 are reversely clamped on the upper and lower sides of the node disc 9, so that the stand column 1 is temporarily fixed on the node disc 9 and can be temporarily fixed on node discs 9 with different thicknesses.

[0065] Preferably, in step S1.1, at least one stand column 1 is installed at equal distances on both sides of the center line of the cable to be replaced 10.1, so that the counterforce system is more stable. The stand column 1 is preferentially installed at equal distances on both sides of the center line of the cable to be replaced 10.1, and in actual installation, a space angle exists, which cannot meet the ideal state of equal distance installation, but the installation is performed in the ideal state of equal distance installation.

[0066] Preferably, the opposite side of each of the two adjusting plates 3 is provided with an arc-shaped adjusting groove 19, and step S2 comprises the following specific steps:

[0067] S2.1, the adjusting groove 19 of the adjusting plate 3 is sleeved on the upper and lower sides of all the columns 1, the adjusting plate arc surface B3.2 in the adjusting groove 19 and the column arc surface A1.1 and the column arc surface B1.2 of the column 1 are respectively attached, so as to facilitate adjusting the position of the adjusting plate 3 relative to the column 1 around the center of the node disc 9;

[0068] S2.2, the position of the adjusting plate 3 is adjusted by rotating along the adjusting groove 19, so that the bolt hole 20 on the adjusting plate 3 is aligned with the position of the corresponding threaded hole 17 at the top of the column 1, and the adjusting plate 3 can be quickly installed;

[0069] S2.3, the fastening bolt 13 is screwed through the bolt hole 20 of the adjusting plate 3 and the threaded hole 17 at the top of the column 1 to temporarily lock the column 1.

[0070] Preferably, the connection plate 4 is provided with a connection plate arc surface 4.1, and the adjusting plate 3 is provided with arc-shaped threaded holes 17 and an adjusting plate arc surface A3.1, wherein step S3 comprises the following specific steps:

[0071] S3.1, the connection plate 4 is placed on the upper and lower adjusting plates 3 respectively, so that the connection plate arc surface 4.1 is attached to the adjusting plate arc surface A3.1, facilitating adjusting the position of the connection plate 4 around the center of the node disc 9;

[0072] S3.2, the position of the connection plate 4 is adjusted by rotating along the outer wall of the adjusting plate 3, so that the connection plate boss surface 4.2 of the connection plate 4 is perpendicular to the center line of the cable to be replaced 10.1, ensuring that the counterforce provided by the counterforce system is consistent with the cable to be replaced 10.1;

[0073] S3.3, the fastening bolt 13 is screwed through the bolt hole 20 of the connection plate 4 and the threaded hole 17 of the adjusting plate 3 to fix the connection plate 4, facilitating disassembly and assembly.

[0074] Preferably, in step S3.2, if the position of the connection plate 4 cannot be adjusted by rotating along the outer wall of the adjusting plate 3 so that the connection plate boss surface 4.2 of the connection plate 4 is perpendicular to the center line of the cable to be replaced 10.1, then the connection between the adjusting plate 3 and the column 1 and the connection between the column 1 and the node disc 9 are loosened, the position of the column 1 relative to the node disc 9 is adjusted again until the connection plate boss surface 4.2 of the connection plate 4 is perpendicular to the center line of the cable to be replaced 10.1, and then the adjusting plate 3 and the column 1 and the column 1 and the node disc 9 are connected and fixed, so as to adjust the connection plate boss surface 4.2 of the connection plate 4 to be perpendicular to the center line of the cable to be replaced 10.1.

[0075] Preferably, the counterforce seat comprises two fixed plates 6 and two tensioning plates III 5, wherein step S4 comprises the following specific steps:

[0076] S4.1, respectively fixedly install one fixed plate 6 on the two adapter plates 4, so that the two fixed plates 6 are erected in parallel on the upper and lower sides of the opposite cable 10, skillfully avoiding the opposite cable 10;

[0077] S4.2, respectively fixedly install two tensioning plates III 5 at the two ends of the two fixed plates 6, so that the two tensioning plates III 5 are erected in parallel on the left and right sides of the opposite cable 10, skillfully avoiding the opposite cable 10, so that the fixed plate 6, the tensioning plate III 5 and the adapter plate 4, the adjusting plate 3 and the positioning assembly are connected to form a whole, and the counterforce system construction is completed.

[0078] Preferably, the counterforce seat further comprises at least one tensioning plate I 8 and tensioning plate II 7, wherein step S4 further comprises step S4.3, installing the tensioning plate I 8 and the tensioning plate II 7 on the rear side of the two fixed plates 6, avoiding the opposite cable 10, which can reinforce the counterforce seat and improve the stability of the cable net replacement.

[0079] Preferably, in step S4.3, at least one tensioning plate I 8 or tensioning plate II 7 is installed at equidistant positions on the left and right sides of the opposite cable 10, so that the tension of the two fixed plates 6 by the tensioning plate I 8 and the tensioning plate II 7 is more balanced. In actual application, the tensioning plate I 8 and the tensioning plate II 7 are adjusted according to the different angles between the opposite cable 10 and the to-be-replaced cable 10.1 at the installation position, and are preferentially installed at equidistant positions on the center line of the to-be-replaced cable 10.1, wherein the tensioning plate II 7 can be installed leftward or rightward to avoid the opposite cable 10, and the tensioning plate I 8 can be installed on one side less when it cannot avoid the opposite cable 10, and the tensioning plate II 7 is installed offset to the position where the tensioning plate I 8 cannot be installed.

[0080] Preferably, the tensioning plate I 8, the tensioning plate II 7 and the tensioning plate III 5 are connected with the fixed plate 6 through the cooperation of the clamping groove 15 and the boss 14 and the fastening of the fastening bolt 13, which can reduce the shear force of the fastening bolt 13 and improve the structural strength of the counterforce seat.

[0081] The counterforce system construction method of the application can meet the installation of any node disc on the cable net without changing the stress of the original cable net and node disc, is not affected by the angle of the cable on the node disc, can face any to-be-replaced cable through adjustment and provide counterforce support, has little effect on the structure stress of the cable net, does not damage the node disc and other cables of the cable net, has the characteristics of high work efficiency and small construction cost, can quickly construct the counterforce system on the node disc, and realizes the replacement of the spatial cable net.

[0082] A counterforce device for replacing a spatial cable net, comprising a hollow counterforce seat and a locking assembly, and two adapter plates 4 arranged in an upper-lower symmetrical manner are detachably installed on the front surface of the counterforce seat.

[0083] Preferably, the counterforce seat comprises two fixed plates 6 and two tensioning plates III 5, one end of one of the two tensioning plates III 5 is detachably connected with one end of the two fixed plates 6 respectively, the other end of the other tensioning plate III 5 is detachably connected with the other end of the two fixed plates 6 respectively, the two fixed plates 6 are fixed by the tensioning plate III 5, the area surrounded by the two fixed plates 6 and the two tensioning plates III 5 constitutes an avoiding hole 12 for avoiding the counterforce seat interfering with the counterforce cable 10, forming a hollow counterforce seat, avoiding the problem of interference between the counterforce cable 10 and the counterforce seat. At least one tensioning plate I 8 and tensioning plate II 7 are detachably arranged between the back surfaces of the two fixed plates 6, for further fixing the two fixed plates 6, improving the structural strength of the counterforce seat. The back surfaces of the two fixed plates 6 are provided with adjusting structures for adjusting the positions of the tensioning plate I 8 and the tensioning plate II 7, through the design of the adjusting structure, the positions of the tensioning plate I and the tensioning plate II can be moved when the counterforce seat is installed, avoiding interfering with any counterforce cable 10, so as to ensure that the counterforce seat will not interfere with the counterforce cable when installed at any position of the node disc 9.

[0084] The counterforce seat of the embodiment adopts a split type counterforce seat structure, which can quickly install the counterforce seat at different positions of the node disc to realize the replacement of all cables of the space cable net.

[0085] Further, the fixed plate 6, the tensioning plate III 5, the tensioning plate II 7 and the tensioning plate I 8 are connected by at least one fastening bolt 13, realizing the detachable connection between the fixed plate 6, the tensioning plate III 5, the tensioning plate II 7 and the tensioning plate I 8, and the disassembly is also convenient.

[0086] Further, the fixed plate 6 is provided with a boss 14 at both ends, and the pull plate III 5 is provided with a clamping groove 15 at both ends, wherein the boss 14 is matched with the clamping groove 15, and the boss 14 is clamped in the clamping groove 15 to form axial limiting. Similarly, the pull plate II 7 is provided with a clamping seat 16 at both ends, and the clamping seat 16 is a structure protruding along the thickness direction of the pull plate II 7, and the two clamping seats 16 are clamped on the upper and lower sides of the fixed plate 6 respectively to form axial limiting. Each fixed plate 6 is also provided with a first through hole 6.4, which can reduce the weight of the counterforce seat, facilitate the taking of the counterforce seat, and enhance the structural strength of the counterforce seat. The back and front of the fixed plate 6 on both sides of the first through hole 6.4 is provided with a first sink groove 6.5, which can reduce the weight of the counterforce seat and enhance the structural strength of the counterforce seat. When the cable net is replaced, the installation of the anchorage device is facilitated. The fixed plate 6 on one side opposite to the two first through holes 6.4 is provided with a plurality of threaded holes 17, which facilitates the installation of the connecting plate 4. The first sink groove 6.5 is provided with a temporary cable hole 6.2, which facilitates the installation of the temporary cable when the cable net is replaced. The pull plate II 7 is also provided with two clamping grooves 15, wherein the boss 14 formed by the bottom of the first through hole 6.4 and the bottom of the fixed plate 6 is clamped in the clamping groove 15 to form axial limiting. The pull plate II 7 uses the cooperation of two bosses 14 and clamping grooves 15 to further improve the installation stability of the pull plate II 7. Similarly, the length of the pull plate I 8 is less than the length of the pull plate II 7, so that the fixed position of the pull plate I 8 and the fixed plate 6 and the fixed position of the pull plate II 7 and the fixed plate 6 are at different positions, the stress points are different, and the structural strength of the counterforce seat can be further improved. The pull plate I 8 is provided with a clamping groove 15 at both ends, and the boss 14 formed by the bottom of the first sink groove 6.5 and the bottom of the fixed plate 6 is clamped in the clamping groove 15 to form axial limiting. In this embodiment, the pull plate I 8, the pull plate II 7, the pull plate III 5 and the fixed plate 6 are fixedly connected in the mode of cooperation of the fastening bolts 13 and the bosses 14 and the clamping grooves 15, which can further improve the structural strength of the counterforce seat, thereby ensuring the safety and reliability of the space cable net replacement.

[0087] Further, the adjusting structure includes a plurality of adjusting screw holes 18, which are uniformly distributed along the axial direction of the fixed plate 6. The number of adjusting screw holes 18 is greater than the number of corresponding fastening bolts 13 between the fixed plate 6 and the pull plate II 7 and the pull plate I 8, and the fastening bolts 13 are threadedly connected with the adjusting screw holes 18 through the pull plate II 7 and the pull plate I 8. When the cable net is replaced, the fastening bolts 13 can be loosened, and the positions of the pull plate II 7 and the pull plate I 8 can be moved left and right to avoid the opposite cable 10. When the pull plate I 8 cannot avoid the opposite cable 10, one side can be installed less, and the pull plate II 7 can be installed by shifting the position where the pull plate I 8 cannot be installed. The operation is very flexible.

[0088] Further, two ends of each fixed plate 6 are also provided with at least two positioning holes 6.3 for installing the short pull rod of the replacing device.

[0089] Further, opposite sides of the two fixed plates 6 are also provided with fixed plate groove surfaces 6.1, which facilitate the positioning and installation of the connecting plates 4.

[0090] Preferably, the locking assembly comprises two adjusting plates 3, which are arranged in an upper-lower interval and symmetry, and are respectively detachably installed at one end of the two connecting plates 4 away from the counterforce seat. The two adjusting plates 3 are provided with a positioning assembly for positioning the node disc 9, which can slide along the circumference of the node disc 9, and the positioning assembly and the adjusting plate 3 are provided with a locking structure for locking the positioning assembly.

[0091] The locking assembly of the embodiment adopts a detachable locking assembly to lock the positioning assembly. When installing, the two adjusting plates 3 are directly sleeved on the positioning assembly, and then the two adjusting plates 3 are locked by using the locking structure. When disassembling, the locking structure is loosened, and the two adjusting plates 3 are removed, so that the position of the positioning assembly can be adjusted. The disassembly and assembly are very convenient, the counterforce system can be quickly transferred to different positions of the node disc, and the construction efficiency is effectively improved.

[0092] Preferably, opposite sides of the two adjusting plates 3 are provided with arc-shaped adjusting grooves 19, and the two sides of the adjusting groove 19 are respectively adjusting plate arc surfaces B3.2 and adjusting plate arc surfaces C3.3. The adjusting plate arc surfaces B3.2 and the adjusting plate arc surfaces C3.3 are concentrically arranged with the node disc 9, and the positioning assembly is slidingly installed between the two adjusting grooves 19. The adjusting plate 3 is an arc-shaped plate, and the two sides of each adjusting plate 3 are adjusting plate arc surfaces A3.1, which are concentrically arranged with the node disc 9. The adjusting plate arc surfaces A3.1, the adjusting plate arc surfaces B3.2 and the adjusting plate arc surfaces C3.3 are concentric with the node disc 9, and do not change with the change of the outer diameter of the node disc 9, so that the positioning assembly can slide along the circumference of the node disc 9 without being locked.

[0093] Further, a plurality of threaded holes 17 are formed in the adjusting plate 3 on one side of the adjusting groove 19, which are connected with the corresponding fastening bolts 13 of the connecting plate 4. The plurality of threaded holes 17 are uniformly distributed along the circumferential direction of the adjusting groove 19, and can be well matched with the shape of the adjusting plate 3. The number of the threaded holes 17 on the adjusting groove 19 is greater than the number of the corresponding fastening bolts 13 between the connecting plate 4 and the adjusting plate 3, so that the position of the connecting plate 4 relative to the adjusting plate 3 can be adjusted.

[0094] Further, the locking structure comprises a plurality of fastening bolts 13, each of which is screwed with the positioning assembly through the adjusting plate 3, and the fastening bolts 13 are used to fasten and realize quick disassembly and assembly. Specifically, a plurality of bolt holes 20 are formed on the adjusting plate 3 corresponding to the adjusting groove 19, the number of the bolt holes 20 is greater than that of the fastening bolts 13, and the plurality of bolt holes 20 are uniformly distributed along the circumferential direction of the adjusting groove 19, and the plurality of bolt holes 20 are distributed in an arc shape, so that the positioning assembly can be locked when the position of the positioning assembly is adjusted.

[0095] Preferably, the positioning assembly comprises at least two split-type stand columns 1, the stand column 1 is a fan-shaped body with a gradually increasing width from the inside to the outside, which can improve the structural strength of the stand column 1, the inside of each stand column 1 is provided with two clamping seats 1.4 arranged symmetrically upward and downward, and an adjusting screw 2 is screwed on each clamping seat 1.4, and a stand column arc surface C1.3 is arranged between the two clamping seats 1.4 corresponding to each stand column 1, which is matched with the outer diameter of the node disc 9, so that the stand column 1 can be well fitted on the outer wall of the node disc 9.

[0096] The positioning assembly of the embodiment adopts the structure of a plurality of split-type stand columns 1 and the structure of the stand column arc surface C1.3, which can adjust the position of the stand column 1 during installation, meet the different angles of the stay cables on the node disc 9, avoid the opposite cable 10 in the case of a space angle between the cable to be replaced and the opposite cable, accurately adjust the angle, realize quick positioning and clamping of the counter-force system on the node disc, and clamp the node disc by using the two adjusting screws upward and downward, which can be applicable to positioning and clamping of node discs 9 with different thicknesses.

[0097] Further, the stand column arc surface C1.3 is concave on the inside of the stand column 1 to form two limiting shoulders 1.5, the height of the stand column arc surface C1.3 is greater than or equal to the thickness of the node disc 9, so that the stand column 1 can be clamped on the outer wall of the node disc 9, and the limiting shoulder 1.5 can limit the axial position of the node disc 9.

[0098] Further, the inner side of both ends of the column 1 is provided with a column camber B1.2, which is arranged concentrically with the node disc 9. The outer side of both ends of the column 1 is provided with a column camber A1.1, which is arranged concentrically with the node disc 9. The column camber A1.1 is matched with the adjusting plate camber C3.3, and the column camber B1.2 is matched with the adjusting plate camber B3.2. In this embodiment, the column camber C1.3 is matched with the outer diameter of the node disc 9, and the column camber B1.2 and the column camber A1.1 can be inserted into the adjusting groove 19 and matched with the adjusting plate camber B3.2 and the adjusting plate camber C3.3, thereby playing a guiding role in the rotation of the column 1. During installation, the column rotates around the center of the node disc 9, thereby making the position adjustment of the column 1 more convenient without affecting the positioning accuracy.

[0099] Further, the column camber B1.2 is concavely arranged on the inner side of the column 1 to form a limiting shoulder 1.5. The column camber A1.1 is concavely arranged on the outer side of the column 1 to form a limiting shoulder 1.5. The design of the limiting shoulder 1.5 can play a role in limiting the axial position of the column 1.

[0100] Further, the width of the limiting shoulder 1.5 corresponding to the column camber B1.2 is greater than the height of the column camber B1.2, which can arrange the clamping seat 1.4 as far forward as possible, thereby ensuring that the adjusting screw 2 clamps the node disc 9 and can be suitable for clamping node discs 9 of different structures.

[0101] Further, at least one threaded hole 17 is formed in both ends of each column 1, and the fastening bolt 13 is screwed into the threaded hole 17 to screw the adjusting plate 3, thereby realizing the fixed installation of the adjusting plate 3 and the column 1.

[0102] Further, the both sides of each clamping seat 1.4 and the inner side of the column 1 are provided with a reinforcing plate 1.6, which can improve the structural strength of the clamping seat 1.4 and prevent it from breaking.

[0103] Preferably, the adapter plate 4 is connected with the fixing plate 6 and the adjusting plate 3 through a plurality of fastening bolts 13, both ends of the adapter plate 4 are provided with a plurality of bolt holes 20, the fastening bolts 13 are respectively screwed with the corresponding threaded holes 17 of the fixing plate 6 and the adjusting plate 3 through the bolt holes 20, so as to realize the fixed installation of the adapter plate 4. The opposite side surface of the two fixing plates 6 is also provided with a fixing plate groove surface 6.1, one side of each adapter plate 4 is provided with an adapter plate boss surface 4.2, the fixing plate groove surface 6.1 is attached to the adapter plate boss surface 4.2; the other side of each adapter plate 4 is provided with an adapter plate arc surface 4.1, the adapter plate arc surface 4.1 is attached to the outer side surface of the adjusting plate 3, the fastening bolts 13 are fastened, and the fixing plate groove surface 6.1 and the adapter plate boss surface 4.2 are limited, and the adapter plate arc surface 4.1 and the outer side surface of the adjusting plate 3 are limited, so as to realize the quick alignment of the bolt hole and the threaded hole, and the installation is more convenient, and the reliability of the installation of the adapter plate 4 can be improved.

[0104] The above is only the preferred embodiment of the present application, it should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of variations and improvements can be made, these will not affect the effect of the present application and the practicality of the patent.

Claims

1. A construction method for a reaction system of spatial cable net replacement, characterized in that, It includes a reaction seat, a connecting plate (4), an adjusting plate (3), and a positioning assembly; the construction method includes the following steps: S1. On the node disk (9), in the direction of the opposite cable (10) of the cable to be replaced (10.1) and in a straight line with the cable to be replaced (10.1), install the positioning component away from the opposite cable (10) so that the positioning component is temporarily fixed on the node disk (9); S2. Install adjustment plates (3) on the upper and lower sides of the positioning component to temporarily lock the positioning component; S3. Install connecting plates (4) on the upper and lower adjusting plates (3), adjust the connecting plate boss surface (4.2) of the connecting plate (4) to be perpendicular to the center line of the cable to be replaced (10.1), and then fix the connecting plate (4). S4. Install reaction seats on the upper and lower connecting plates (4), avoiding the opposing cable (10), so that the reaction seats are connected with the connecting plates (4), the adjusting plate (3) and the positioning components to form a whole, and complete the construction of the reaction system. The positioning component includes a column (1), and the column (1) is provided with an adjusting screw (2), a column arc surface A (1.1), a column arc surface B (1.2), and a column arc surface C (1.3) at its top and bottom, respectively; the step S1 includes the following specific steps: S1.1 On the node disk (9), at least two columns (1) are installed in the direction of the opposite cable (10) of the cable to be replaced (10.1) and in a straight line with the cable to be replaced (10.1), avoiding the opposite cable (10), so that the column arc surface C (1.3) of each column (1) fits against the outer wall of the node disk (9); S1.2 Adjust the two adjusting screws (2) on the top and bottom of the column (1) and turn them upside down on the top and bottom sides of the node plate (9) so that the column (1) is temporarily fixed on the node plate (9); Both of the two adjustment plates (3) have arc-shaped adjustment grooves (19) on their opposite sides. Step S2 includes the following specific steps: S2.

1. Place the adjustment groove (19) of the adjustment plate (3) on the upper and lower sides of all the columns (1), so that the adjustment plate arc surface B (3.2) and adjustment plate arc surface C (3.3) in the adjustment groove (19) are in contact with the column arc surface A (1.1) and column arc surface B (1.2) of the column (1) respectively. S2.

2. Rotate along the adjustment groove (19) to adjust the position of the adjustment plate (3) so that the bolt hole (20) on the adjustment plate (3) is aligned with the corresponding threaded hole (17) on the top of the column (1); S2.

3. Use a fastening bolt (13) to thread it through the bolt hole (20) of the adjusting plate (3) and connect it to the threaded hole (17) at the top of the column (1) to temporarily lock the column (1); The connecting plate (4) is provided with a connecting plate arc surface (4.1), and the adjusting plate (3) is provided with arc-shaped distributed threaded holes (17) and an adjusting plate arc surface A (3.1). The step S3 includes the following specific steps: S3.1 Place connecting plates (4) on the upper and lower adjusting plates (3) respectively, so that the arc surface (4.1) of the connecting plate is in contact with the arc surface A (3.1) of the adjusting plate; S3.

2. Rotate along the outer wall of the adjusting plate (3) to adjust the position of the connecting plate (4) so ​​that the connecting plate boss surface (4.2) of the connecting plate (4) is perpendicular to the center line of the cable to be replaced (10.1); S3.

3. Use fastening bolts (13) to thread through the bolt holes (20) of the connecting plate (4) and thread them into the threaded holes (17) of the adjusting plate (3) to fix the connecting plate (4); The reaction seat includes two fixed plates (6) and two tension plates III (5), and step S4 includes the following specific steps: S4.

1. Fix a fixing plate (6) on each of the two connecting plates (4) so ​​that the two fixing plates (6) are erected in parallel on the upper and lower sides of the opposing cable (10); S4.2 Fix the two tension plates III (5) at both ends of the two fixed plates (6) respectively, so that the two tension plates III (5) are erected in parallel on the left and right sides of the opposing cable (10), so that the fixed plate (6), tension plate III (5), connecting plate (4), adjusting plate (3) and positioning component are connected into a whole, and the reaction force system is constructed.

2. The construction method for a reaction system of spatial cable net replacement according to claim 1, characterized in that, In step S1.1, at least one column (1) is installed at equal intervals on both sides of the center line of the cable to be replaced (10.1).

3. The construction method for a reaction system of spatial cable net replacement according to claim 1, characterized in that, In step S3.2, if the position of the connecting plate (4) cannot be adjusted by rotating along the outer wall of the adjusting plate (3) so that the connecting plate boss surface (4.2) of the connecting plate (4) is perpendicular to the center line of the cable to be replaced (10.1), then the connection between the adjusting plate (3) and the column (1) and the node plate (9) is loosened, the position of the column (1) relative to the node plate (9) is readjusted until the connecting plate boss surface (4.2) of the connecting plate (4) is perpendicular to the center line of the cable to be replaced (10.1), and then the adjusting plate (3) is connected and fixed to the column (1) and the node plate (9).

4. The construction method for a reaction system of space cable net replacement according to claim 1, characterized in that, The reaction seat also includes at least one tension plate I (8) and tension plate II (7). Step S4 also includes step S4.3, where tension plate I (8) and tension plate II (7) are installed on the rear side of the two fixed plates (6), avoiding the opposing cable (10).

5. The construction method for a reaction system for replacing a spatial cable net according to claim 4, characterized in that, In step S4.3, at least one bracing plate I (8) or bracing plate II (7) is installed at equal intervals on both sides of the opposing cable (10).

6. The construction method for a reaction system of spatial cable net replacement according to claim 4, characterized in that, The bracing plates I (8), II (7), and III (5) are all connected to the fixing plate (6) by means of a slot (15) and a boss (14) and a fastening bolt (13).

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