High-precision track beam limiting fine adjustment device and construction method

Abstract

The invention discloses a high-precision track beam limiting fine adjustment device and a construction method, and relates to the technical field of track trains. The high-precision track beam limiting fine adjustment device comprises an adjustment module and a supporting module which are installed between a track beam and a foundation. The adjusting module comprises a first support, a first sleeve, a lead screw, a first mounting assembly and a second mounting assembly. The device is simple in structure, reliable in function and convenient and fast to adjust, the adjusting module is used for finely adjusting the transverse positions of the track beams, so that the connecting positions of the adjacent track beams can be accurately aligned, smooth transition is achieved, and the running smoothness and safety of a train are improved; and the supporting module is used for applying upward supporting force to the track beam, so that the weight of the track beam is borne, the situation that the adjusting module deforms due to bearing of overlarge bending moment is avoided, the service life is prolonged, and the safety is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, and in particular to a high-precision track beam limit fine-adjusting device and a construction method. Background Art

[0002] Most of the existing track beams are prepared in a prefabricated manner and then installed by hoisting and lateral advancement.

[0003] In the prior art, during the installation of the track beam, hydraulic devices are mostly used to push the track beam laterally.

[0004] However, in the actual installation process, since the existing track beam supports need to be installed at the bottom of the track beam, concrete is poured into the reserved holes of the steel plate and bolts under the supports after the track beam is accurately in place. This makes it difficult to achieve accurate installation of the track beam before the bottom concrete is poured, and requires repeated lateral adjustments, which seriously affects the installation efficiency and bottom structure of the track beam. At the same time, after the track beam is installed, the high-speed impact during the trial operation of the upper maglev tram causes the lateral change of the plane position of the track beam, making it extremely difficult to readjust the bottom of the support after grouting. Summary of the invention

[0005] In order to overcome the problem of "train track beams are difficult to accurately install" existing in the above-mentioned background technology, the present invention provides a high-precision track beam limit fine-adjusting device and a construction method.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A high-precision track beam limit fine-tuning device, comprising an adjustment module and a support module installed between the track beam and a foundation; the adjustment module comprises a first support, a first sleeve, a screw, a first mounting assembly and a second mounting assembly; the first support is fixedly mounted on the foundation surface, and the first sleeve is laterally inserted in the upper part of the first support; one end of the screw is inserted in the inner cavity of the first sleeve and connected by a thread, and the other end of the screw is inserted in the second sleeve and connected by an annular clamp; the first mounting assembly is arranged between the first sleeve and the first support, and the second mounting assembly is arranged between the second sleeve and the track beam; the second sleeve is inserted in the track beam; the top end of the support module is inserted in the track beam, and the bottom end is inserted in the accommodating pit opened on the foundation surface.

[0007] As a further optimization scheme of the present invention, the first mounting assembly includes a first plate body and a first anchor; the first anchor is in the shape of an N, the first plate body is provided with two mutually parallel first plug-in holes, the middle part of the first anchor is plugged into the first plug-in holes; the end of the first anchor is bent inward.

[0008] As a further optimization scheme of the present invention, the second mounting assembly includes a second plate body and a second anchor; the second anchor is in the shape of an N, the second plate body is provided with two second parallel plug-in holes, the middle part of the second anchor is plugged into the second plug-in holes; the end of the second anchor is bent inward.

[0009] As a further optimization scheme of the present invention, the first plate body is fixedly installed on the side wall position of the first support close to the track beam; the second plate body is fixedly installed on the side wall position of the track beam close to the first support; the first plate body and the second plate body are at the same height.

[0010] As a further optimization scheme of the present invention, the surface of the screw rod is sleeved with a first double-stacked self-locking washer and a second double-stacked self-locking washer, and the first double-stacked self-locking washer and the second double-stacked self-locking washer are respectively arranged on the left and right sides of the first support.

[0011] As a further optimization scheme of the present invention, the support module includes a pad, a top plate, a bottom plate and a plug-in column; the top plate is fixedly installed on the top surface of the pad and crimped with the track beam, the bottom plate is fixedly installed on the bottom surface of the pad, and the plug-in column is longitudinally plugged into the top plate, the pad and the middle of the bottom plate; the plug-in top end is plugged into the track beam, and the bottom end is plugged into the accommodating pit.

[0012] As a further optimization scheme of the present invention, the surface of the plug-in column is provided with threads, and two limiting cylinders are connected to the surface of the plug-in column through threads, one end face of the limiting cylinder is crimped to the top surface of the top plate, and the other end face of the limiting cylinder is crimped to the bottom surface of the bottom plate.

[0013] As a further optimization solution of the present invention, ring bodies are respectively installed at the top and bottom ends of the plug-in column.

[0014] As a further optimization solution of the present invention, a rotating end is provided at one end of the screw rod away from the second sleeve; the first sleeve and the first plate body are fixedly connected in an integrated manner.

[0015] A construction method for a high-precision track beam limit fine-tuning device, the steps comprising: S1, fixing and connecting the track beam, the second mounting assembly, the second sleeve and the support module in a prefabricated form; S2, casting and molding the foundation, and reserving the receiving pits at both sides of the foundation surface; S3, installing a jacking device in the middle of the foundation surface, and then hoisting and placing the track beam on the jacking device, so that the bottom end of the support module is inserted into the receiving pit; S4, screwing one end of the screw rod into the inner cavity of the first sleeve, and then installing the rotating end head on the end of the screw rod; S5, inserting the first anchor into the first plate body; S6, moving the screw rod away from the rotating end Insert one end of the first support into the second sleeve; S7, install the first mold for forming the first support, arrange the steel mesh in the mold, and fix the first installation assembly to the steel mesh; pour concrete into the inner cavity of the first mold to form the first support; S8, after the first support hardens, remove the first mold; the jacking equipment descends and disengages from the track beam; rotate the screw to adjust the lateral position of the track beam; S9, crimp the first double-stacked self-locking washer on the side wall of the first support, and crimp the second double-stacked self-locking washer on the side wall of the first plate body; the jacking equipment lifts and supports the track beam; S10, pours concrete into the receiving pit; after the concrete in the receiving pit hardens, remove the jacking equipment.

[0016] In summary, the present invention is beneficial in that: (1) The present invention has a simple structure, reliable functions, and convenient adjustment. The adjustment module is used to fine-tune the lateral position of the track beam, so that the connection positions of adjacent track beams can be accurately aligned and a smooth transition can be achieved, thereby improving the smoothness and safety of train operation; the support module is used to apply an upward supporting force to the track beam, thereby bearing the weight of the track beam, avoiding deformation of the adjustment module due to excessive bending moment, and improving the service life and safety of the present invention.

[0017] (2) One end of the screw rod is screwed to the first sleeve through a thread, and the other end is connected to the second cylinder through a ring clamp. When the screw rod rotates, it can be relatively displaced with the first sleeve, thereby pushing or pulling the track beam to move horizontally; the operation is convenient and the adjustment is precise.

[0018] (3) The rotating end head and the screw rod are detachably connected by plugging; thus, it is convenient to install when the position of the track beam needs to be adjusted; at the same time, the rotating end head can be disassembled to facilitate the first nut and the first double-stacked self-locking washer to be sleeved on the screw rod, thereby making the locking step of the adjustment module convenient and reliable.

[0019] (4) The second sleeve includes a first cylinder body and a second cylinder body which are interlocked with each other, and the first sleeve ring body and the second sleeve ring body are respectively crimped on the left and right side walls of the second mounting fin, so as to prevent the first cylinder body and the second cylinder body from being disengaged; the transverse steel bars are inserted into the transverse holes, and the longitudinal steel bars are crimped on the side wall edges of the first mounting fin and the second mounting fin, so that the first mounting fin and the second mounting fin can apply thrust to the steel mesh, thereby improving the connection strength, so as to bear the load when the screw drives the track beam to move outward, reduce damage to the concrete, thereby reducing the probability of loosening between the second sleeve and the concrete, and ensuring the accuracy of the lateral adjustment of the track beam.

[0020] (5) The screw rod, the first cylinder, the second cylinder, the first sleeve ring body, and the second sleeve ring body are assembled in a splicing form, thereby making the prefabrication operation of the track beam more convenient and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present application is further described below with reference to the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the structure of the adjustment module; Figure 3 is a schematic diagram of the structure of the first installation component; Figure 4 is a schematic diagram of the side structure of the first plate; Figure 5 is a schematic diagram of the structure of the second installation component; Figure 6 is a schematic diagram of the side structure of the second plate; Figure 7 A schematic diagram of the installation positions of the first double-stacked self-locking washer and the second double-stacked self-locking washer; Figure 8 It is a schematic diagram of the supporting module structure; Fig. 9 is a schematic diagram of the ring structure; Fig.10 It is a schematic diagram of the plug-in structure of the rotating end and the screw rod; Fig.11 It is a schematic diagram of the structure of the first cylinder and the second cylinder; Fig.12 It is a schematic diagram of the position and structure of the first mounting fin and the second mounting fin; Fig.13 A schematic diagram of the installation position and structure of the first sleeve ring body and the second sleeve ring body; Fig.14 It is a schematic diagram of the positions and structures of the horizontal reinforcement, the longitudinal reinforcement, the first mounting fin and the second mounting fin; Fig.15It is a schematic diagram of the positions of the first cylinder and the second cylinder in the track beam; Fig.16 It is a schematic diagram of the installation state of two coaxial second sleeves; Fig.17 It is a schematic diagram of the limiting ring structure.

[0022] Description of reference numerals: In the figure, 1. Track beam; 11. Horizontal reinforcement; 12. Longitudinal reinforcement; 2. Adjustment module; 21. First support; 22. First sleeve; 23. Screw; 231. Rotary end; 232. Limiting column; 24. First mounting assembly; 241. First plate; 2411. First connecting hole; 242. First anchor; 25. Second mounting assembly; 251. Second plate; 2511. Second connecting hole; 252. Second anchor; 26. Second sleeve; 261. First cylinder; 2611. First mounting fin; 262. Second cylinder; 2621. Second mounting fin; 263. First sleeve ring; 264. Second sleeve ring; 265. Limiting collar; 2651. Limiting fin; 27. First double-stacked self-locking washer; 28. Second double-stacked self-locking washer; 3. Support module; 31. Cushion block; 32. Top plate; 33. Bottom plate; 34. Connecting column; 341. Limiting cylinder; 342. Ring body; 4. Foundation; 41. Receiving pit. DETAILED DESCRIPTION

[0023] Based on the above structural features of the present application, the implementation methods of the present application are further described: Reference Figure 1-2 This embodiment provides a high-precision track beam limit fine adjustment device, including an adjustment module 2 and a support module 3 installed between the track beam 1 and the foundation 4. The adjustment module 2 is used to fine-tune the lateral position of the track beam 1, so that the connection position of adjacent track beams 1 can achieve a smooth transition; the support module 3 is used to apply an upward support force to the track beam 1, so as to bear the weight of the track beam 1 and prevent the adjustment module 2 from being deformed due to excessive bending moment. The foundation 4 is a reinforced concrete structure.

[0024] Reference Figure 1 and Figure 2 The adjustment module 2 includes a first support 21, a first sleeve 22, a screw 23, a first mounting assembly 24 and a second mounting assembly 25. A single track beam 1 is adapted to connect four adjustment modules 2, and the adjustment modules 2 are arranged in pairs on the left and right sides of the track beam 1, so as to achieve uniform support and adjustment of the track beam 1.

[0025] Reference Figure 1 and Figure 2The first support 21 is fixedly mounted on the surface of the foundation 4 (for example, fixedly connected by reinforced concrete), and the first sleeve 22 is transversely inserted and fixedly arranged in the upper part of the first support 21; one end of the screw rod 23 is inserted in the inner cavity of the first sleeve 22 and is adjustable by a thread, and the other end of the screw rod 23 is inserted in the second sleeve 26 and is rotatably connected by an annular clamping connection; the first installation component 24 is arranged between the first sleeve 22 and the first support 21, and is used to increase the connection force between the first sleeve 22 and the first support 21, so as to prevent the first sleeve 22 from coming out of the first support 21. The second sleeve 26 is inserted in the track beam 1. The second installation component 25 is arranged between the second sleeve 26 and the track beam 1, and is used to increase the connection force between the second sleeve 26 and the track beam 1, so as to prevent the second sleeve 26 from coming out of the track beam 1.

[0026] Reference Figure 1 and Figure 2 The top end of the support module 3 is inserted into the track beam 1, and the bottom end is inserted into the receiving pit 41 opened on the surface of the foundation 4.

[0027] Reference Figure 2 and Figure 4 The first mounting assembly 24 includes a first plate 241 and a first anchor 242 that are vertically plugged into each other. The first anchor 242 is an N-shaped bent plate structure; the first plate 241 is a rectangular straight plate structure, and the first plate 241 is provided with two mutually parallel first plug holes, and the middle of the first anchor 242 is plugged into the first plug holes; the end of the first anchor 242 is bent inward, thereby further increasing the connection force between the first anchor 242 and the first support 21, and preventing the first anchor 242 from falling out of the first support 21.

[0028] Reference Figure 2 , Figure 5-6 The second mounting assembly 25 includes a second plate body 251 and a second anchor 252 which are vertically plugged into each other; the second anchor 252 is an N-shaped bent plate structure; the second plate body 251 is a rectangular straight plate structure, and the second plate body 251 is provided with two second plug-in holes which are parallel to each other, and the middle part of the second anchor 252 is plugged into the second plug-in holes; the end of the second anchor 252 is bent inwardly, so as to further increase the connection force between the second anchor 252 and the track beam 1, and prevent the second anchor 252 from falling out of the track beam 1.

[0029] Reference Figure 2 , Figure 3 and Figure 5The first plate 241 is fixedly installed on the side wall of the first support 21 close to the track beam 1; the second plate 251 is fixedly installed on the side wall of the track beam 1 close to the first support 21; the first plate 241 and the second plate 251 are at the same height, thereby ensuring that the screw rod 23 is in a horizontal state after installation.

[0030] Reference Figure 7 The surface of the screw rod 23 is sleeved with a first double-stacked self-locking washer 27 and a second double-stacked self-locking washer 28, and the first double-stacked self-locking washer 27 and the second double-stacked self-locking washer 28 are respectively arranged on the left and right sides of the first support 21. The surface of the screw rod 23 is sleeved with a first nut and a second nut, and the first nut and the second nut are respectively arranged on the left and right sides of the first support 21. The first nut is used to press the first double-stacked self-locking washer 27 at the side wall position of the first plate body 241, and the second nut is used to press the second double-stacked self-locking washer 28 at the side wall position of the first plate body 241.

[0031] Reference Figure 1 Figure 8 The support module 3 includes a pad 31, a top plate 32, a bottom plate 33 and a plug-in column 34; the top plate 32 is fixedly mounted on the top surface of the pad 31 and pressed against the track beam 1, the bottom plate 33 is fixedly mounted on the bottom surface of the pad 31, and the plug-in column 34 is longitudinally plugged in the middle of the top plate 32, the pad 31 and the bottom plate 33; the plug-in top end is plugged in and fixedly mounted in the track beam 1, and the bottom end is plugged in the receiving pit 41. The pad 31 is a reinforced concrete structure, and the bottom plate 33, the pad 31, the top plate 32, the plug-in column 34 and the track beam 1 are fixedly connected by integral casting; the plug-in column 34 is fixedly connected to the steel mesh in the pad 31 (for example, fixedly connected by plugging and bolts), and the plug-in column 34 is fixedly connected to the steel mesh in the track beam 1 (for example, fixedly connected by plugging and bolts).

[0032] Reference Figure 8 and Fig. 9 The surface of the plug-in column 34 is provided with threads, and two limit cylinders 341 are connected to the surface of the plug-in column 34 through threads. The end face of one limit cylinder 341 is pressed against the top surface of the top plate 32, and the end face of the other limit cylinder 341 is pressed against the bottom surface of the bottom plate 33, so that the high-precision track beam limit fine-tuning device has higher structural strength.

[0033] Reference Figure 8 and Fig. 9 The top and bottom ends of the plug-in column 34 are respectively provided with a ring body 342, and the ring body 342 is threadedly connected to the plug-in column 34. The ring body 342 is used to increase the longitudinal support force of the concrete in the plug-in column 34 and the pad 31 and the concrete in the track beam 1.

[0034] Reference Fig.10, a rotating end is provided at one end of the screw rod 23 away from the second sleeve 26, and the rotating end is detachably connected to the screw rod 23. A plug-in end with a rectangular cross section is provided at one end of the screw rod 23 away from the second sleeve 26, and an adapting hole with a rectangular cross section and adapted to the plug-in end is provided at the end of the rotating end. After the plug-in end is inserted into the adapting hole, the rotating end can transmit torque to the screw rod 23, thereby driving the screw rod 23 to rotate. A clamping end in the shape of a hexagonal prism is provided at one end of the rotating end away from the adapting hole, and the clamping end can be adapted and inserted into the electric wrench and rotate synchronously with the output shaft of the electric wrench. A banana strip is crimped between the first cylinder 261 and the second cylinder 262, so as to prevent concrete slurry from flowing into the adapting hole when the track beam 1 is cast.

[0035] Reference Figure 2 and Figure 3 The first sleeve 22 and the first plate body 241 are integrally fixedly connected.

[0036] Reference Fig.11 The second sleeve 26 includes a first cylinder 261 and a second cylinder 262 that are interlocked. The first cylinder 261 and the second cylinder 262 are both semi-cylindrical and have a receiving cavity inside. The end of the screw rod 23 is fixedly connected to the limiting column 232 through an integral manner. The limiting column 232 is placed in the receiving cavity and can rotate; the end of the screw rod 23 is inserted between the first cylinder 261 and the second cylinder 262 and can rotate along its own axis. Fig.12 The first cylindrical body 261 has a first mounting fin 2611 fixedly connected to the middle of the outer wall thereof in an integrated manner, and the second cylindrical body 262 has a second mounting fin 2621 fixedly connected to the middle of the outer wall thereof in an integrated manner. Fig.12 and Fig.13 The surface of the second sleeve 26 is sleeved with a first sleeve ring body 263 and a second sleeve ring body 264. The outer wall of the first cylinder 261 and the outer wall of the second cylinder 262 are provided with external threads. The first sleeve ring body 263 is connected to the outer wall of the second sleeve 26 by threads, and the second sleeve ring body 264 is connected to the outer wall of the second sleeve 26 by threads. The first sleeve ring body 263 and the second sleeve ring body 264 are respectively pressed on the left and right side walls of the first mounting fin 2611, and the first sleeve ring body 263 and the second sleeve ring body 264 are respectively pressed on the left and right side walls of the second mounting fin 2621, so as to prevent the first cylinder 261 and the second cylinder 262 from being disengaged. Fig.13 and Fig.14The first mounting fin 2611 and the second mounting fin 2621 are respectively provided with transverse holes; the steel mesh in the track beam 1 includes transverse steel bars 11 and longitudinal steel bars 12 arranged in a cross shape, the transverse steel bars 11 are inserted into the transverse holes, and the longitudinal steel bars 12 are crimped on the side wall edges of the first mounting fin 2611 and the second mounting fin 2621, so that the first mounting fin 2611 and the second mounting fin 2621 can apply thrust to the steel mesh to improve the connection strength, so that when the screw rod 23 drives the track beam 1 to move outward, it can bear the load and reduce the damage to the concrete, thereby reducing the probability of loosening between the second sleeve 26 and the concrete.

[0037] Reference Fig.13 and Fig.14 There are four transverse holes adapted to the arrangement spacing of four transverse steel bars 11. The first mounting fin 2611 and the second mounting fin 2621 are assembled into a rectangular shape, so as to be adapted to be installed between the four transverse steel bars 11 arranged in a rectangular shape and the two longitudinal steel bars 12 arranged parallel to each other, so that the structure of the present invention is compact and the stability is improved.

[0038] Reference Fig.15 The end surface of the first cylinder 261 and the end surface of the second cylinder 262 are both flush with the side wall of the track beam 1, thereby preventing the screw rod 23 from contacting the concrete and ensuring the smoothness of the rotation of the screw rod 23.

[0039] Reference Fig.14 and Fig.16In the conventional technology, the cross-rebar 11 and the longitudinal rebar 12 are bound and fixed by iron wires. However, in the present invention, the iron wires are wrapped around the cross-rebar 11 and the longitudinal rebar 12 and are convex. Then, the end faces of the first mounting fin 2611 and the second mounting fin 2621 are crimped onto the iron wires instead of the longitudinal rebar 12. Therefore, gaps are generated between the longitudinal rebar 12 and the end faces of the first mounting fin 2611, and between the longitudinal rebar 12 and the end faces of the second mounting fin 2621. When pouring concrete, a thin concrete layer is formed in the gap. When the second sleeve 26 is pulled and connected in the later stage to drive the track beam 1 to move horizontally, since the second sleeves 26 are arranged in pairs on the left and right sides of the track beam 1 to respectively adapt to the screw rods 23 that are arranged in pairs and on both sides of the track beam 1, in the two adjustment modules 2 in the coaxial position, the two gaps are both located on the inner side of the corresponding longitudinal reinforcement 12, and the two screw rods 23 cannot drive the two first mounting fins 2611 / two second mounting fins 2621 to perform absolutely synchronous movement. Therefore, (at least one) of the gaps is susceptible to extrusion pressure, that is, the thinner concrete layer is easily compressed and overloaded to collapse and form powder, resulting in the lack of support for the first mounting fins 2611 and the second mounting fins 2621 (the binding wire has good toughness but is not enough to support the first mounting fins 2611 and the second mounting fins 2621), further causing the connection between the second sleeve 26 and the track beam 1 to become loose. To avoid such problems, refer to Fig.17 A limiting ring 265 is sleeved on the surface of the first sleeve ring body 263, the inner wall of the limiting ring 265 is in contact with the outer wall of the first sleeve ring body 263, and the outer wall is in contact with the transverse steel bar 11; the edge position of the limiting ring 265 is fixedly connected with a limiting fin 2651 through an integrated manner, and the limiting fin 2651 extends in the direction of the second sleeve ring body 264; one limiting fin 2651 is provided on the left and right, and the two limiting fins 2651 are respectively located on the outside of the corresponding longitudinal steel bar 12 and are clamped with the corresponding longitudinal steel bar 12, thereby realizing the clamping and limiting of the transverse steel bar 11 and the longitudinal steel bar 12 at the crossing position, and by avoiding the use of binding wire, the formation of gaps and thin concrete layers is further avoided, and finally the second sleeve 26 is prevented from loosening.

[0040] Reference Fig.17Since the first sleeve ring is connected to the second sleeve 26 by threads, it needs to be crimped on the first mounting fin 2611 and the second mounting fin 2621 in a rotating form. Therefore, the limiting fin 2651 is connected to the limiting collar 265 instead of the first sleeve ring body 263 to prevent the horizontal reinforcement 11 and the longitudinal reinforcement 12 from hindering the rotation of the first sleeve ring body 263. The inner wall of the limiting fin 2651 is provided with a clamping groove adapted to the longitudinal reinforcement 12. When in use, the limiting collar 265 is pushed horizontally to be sleeved on the surface of the first sleeve ring body 263, and the limiting fin 2651 is clamped on the outside of the longitudinal reinforcement 12, so that the limiting collar 265 can be installed without rotating the limiting collar 265. The limiting fins 2651 apply an inward clamping force to the longitudinal steel bars 12 to prevent the two longitudinal steel bars 12 from bending outward. The longitudinal steel bars 12 can always be crimped with the end faces of the first mounting fin 2611 and the second mounting fin 2621 to prevent the second sleeve 26 from escaping from the two longitudinal steel bars 12.

[0041] A construction method of a high-precision track beam limit fine adjustment device, the steps comprising: S1, fixing and connecting the track beam 1, the second mounting assembly 25, the second sleeve 26 and the support module 3 in a prefabricated form; S2, casting and forming the foundation 4, and reserving receiving pits 41 on both sides of the surface of the foundation 4; S3, installing a jacking device (such as a hydraulic jack) in the middle of the surface of the foundation 4, and then hoisting and placing the track beam 1 on the jacking device so that the bottom end of the support module 3 is inserted into the receiving pit 41; S4, screw one end of the screw rod 23 into the inner cavity of the first sleeve 22, and then install the rotating end head on the end of the screw rod 23; install the second nut and the second double-stacked self-locking washer 28 on the surface of the screw rod 23; S5, inserting the first anchor 242 into the first plate 241; S6, inserting the end of the screw rod 23 away from the rotating end into the second sleeve 26; S7, installing a first mold for forming the first support 21, laying a steel mesh in the mold, and fixing the first installation assembly 24 to the steel mesh (for example, by welding, bolting, plug-in fixing, etc.); pouring concrete into the inner cavity of the first mold to form the first support 21; S8. After the first support 21 is hardened, the first mold is removed; the lifting device is lowered and disengaged from the track beam 1; the screw rod 23 is rotated to adjust the lateral position of the track beam 1 so that adjacent track beams 1 can be accurately docked; S9, remove the rotating end, install the first double-stacked self-locking washer 27 and the first nut on the end of the screw rod 23, then rotate the first nut to press the first double-stacked self-locking washer 27 on the side wall of the first support 21, and then rotate the second nut to press the second double-stacked self-locking washer 28 on the side wall of the first plate body 241; lift the lifting equipment to lift and support the track beam 1; S10, pouring concrete into the receiving pit 41; after the concrete in the receiving pit 41 hardens, removing the jacking equipment.

[0042] The present invention has a simple structure, reliable functions and convenient adjustment. The adjustment module 2 is used to fine-tune the lateral position of the track beam 1, so that the connection positions of adjacent track beams 1 can be accurately aligned and a smooth transition can be achieved, thereby improving the smoothness and safety of train operation; the support module 3 is used to apply an upward supporting force to the track beam 1, thereby bearing the weight of the track beam 1, avoiding deformation of the adjustment module 2 due to excessive bending moment, and improving the service life and safety of the present invention.

[0043] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0044] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] To sum up, for those skilled in the art, according to the guidance of the present invention, without departing from the principles and spirit of the present invention, the changes, modifications, substitutions and deformations made to the present invention still fall within the protection scope of the present invention.

Claims

1. A high-precision track beam limit fine adjustment device, characterized in that: It comprises an adjustment module (2) and a support module (3) installed between a track beam (1) and a foundation (4); The adjustment module (2) comprises a first support (21), a first sleeve (22), a screw rod (23), a first mounting assembly (24) and a second mounting assembly (25); the first support (21) is fixedly mounted on the surface of the base (4), and the first sleeve (22) is transversely inserted in the upper part of the first support (21); one end of the screw rod (23) is inserted in the inner cavity of the first sleeve (22) and connected by a thread, and the other end of the screw rod (23) is inserted in the second sleeve (26) and connected by an annular clamp; the first mounting assembly (24) is arranged between the first sleeve (22) and the first support (21), and the second mounting assembly (25) is arranged between the second sleeve (26) and the track beam (1); the second sleeve (26) is inserted in the track beam (1); The top end of the support module (3) is inserted into the track beam (1), and the bottom end is inserted into a receiving pit (41) opened on the surface of the foundation (4).

2. The high-precision track beam limit fine-tuning device according to claim 1 is characterized in that: The first mounting assembly (24) comprises a first plate body (241) and a first anchoring piece (242); the first anchoring piece (242) is in an N-shape, the first plate body (241) is provided with two mutually parallel first plugging holes, the middle part of the first anchoring piece (242) is plugged into the first plugging holes; the end of the first anchoring piece (242) is bent inwards.

3. The high-precision track beam limit fine-tuning device according to claim 2 is characterized in that: The second mounting assembly (25) comprises a second plate body (251) and a second anchor (252); the second anchor (252) is in an N-shape, the second plate body (251) is provided with two second plug holes parallel to each other, the middle of the second anchor (252) is plugged into the second plug holes; the end of the second anchor (252) is bent inwards.

4. The high-precision track beam limit fine-tuning device according to claim 3 is characterized in that: The first plate body (241) is fixedly mounted on a side wall position of the first support (21) close to the track beam (1); the second plate body (251) is fixedly mounted on a side wall position of the track beam (1) close to the first support (21); the first plate body (241) and the second plate body (251) are at the same height.

5. The high-precision track beam limit fine-tuning device according to claim 4 is characterized in that: A first double-stacked self-locking washer (27) and a second double-stacked self-locking washer (28) are sleeved on the surface of the screw rod (23); the first double-stacked self-locking washer (27) and the second double-stacked self-locking washer (28) are respectively arranged on the left and right sides of the first support (21).

6. The high-precision track beam limit fine-tuning device according to claim 5 is characterized in that: The support module (3) comprises a cushion block (31), a top plate (32), a bottom plate (33) and a plug-in column (34); the top plate (32) is fixedly mounted on the top surface of the cushion block (31) and is crimped to the track beam (1); the bottom plate (33) is fixedly mounted on the bottom surface of the cushion block (31); the plug-in column (34) is longitudinally plugged in the middle of the top plate (32), the cushion block (31) and the bottom plate (33); the plug-in top end is plugged in the track beam (1) and the bottom end is plugged in the receiving pit (41).

7. The high-precision track beam limit fine-tuning device according to claim 6 is characterized in that: The surface of the plug-in column (34) is provided with threads, and two limiting cylinders (341) are connected to the surface of the plug-in column (34) through threads, the end surface of one limiting cylinder (341) is pressed against the top surface of the top plate (32), and the end surface of the other limiting cylinder (341) is pressed against the bottom surface of the bottom plate (33).

8. The high-precision track beam limit fine-tuning device according to claim 7 is characterized in that: Ring bodies (342) are respectively installed at the top and bottom ends of the plug-in column (34).

9. The high-precision track beam limit fine-tuning device according to claim 8, characterized in that: A rotating end is provided at one end of the screw rod (23) away from the second sleeve (26); and the first sleeve (22) and the first plate body (241) are integrally fixedly connected.

10. A construction method of the high-precision track beam limit fine adjustment device according to claim 9, characterized in that the steps include: S1. fixedly connecting the track beam (1), the second mounting assembly (25), the second sleeve (26), and the support module (3) in a prefabricated manner; S2, casting the foundation (4) and reserving the receiving pits (41) at both sides of the surface of the foundation (4); S3, installing a jacking device in the middle of the surface of the foundation (4), then hoisting and placing the track beam (1) on the jacking device, so that the bottom end of the support module (3) is inserted into the receiving pit (41); S4, screwing one end of the screw rod (23) into the inner cavity of the first sleeve (22), and then installing the rotating end head on the end of the screw rod (23); S5, inserting the first anchor (242) into the first plate (241); S6, inserting the end of the screw rod (23) away from the rotating end into the second sleeve (26); S7, installing a first mold for forming the first support (21), laying a steel mesh in the mold, and fixedly connecting the first installation component (24) to the steel mesh; pouring concrete into the inner cavity of the first mold to form the first support (21); S8, after the first support (21) is hardened, the first mold is removed; the lifting device is lowered and disengaged from the track beam (1); the screw rod (23) is rotated to adjust the lateral position of the track beam (1); S9, crimping the first double-stacked self-locking washer (27) onto the side wall of the first support (21), and crimping the second double-stacked self-locking washer (28) onto the side wall of the first plate (241); lifting equipment lifts and supports the track beam (1); S10, pouring concrete into the receiving pit (41); after the concrete in the receiving pit (41) hardens, removing the jacking device.

Images