Fine adjustment device for erecting high-speed magnetic suspension integral track beam
By combining active and passive fine-tuning mechanisms with jacks and rolling steel bars, the problem that traditional track beam erection methods cannot meet the positioning accuracy requirements of high-speed maglev integral track beams is solved. This achieves high smoothness and stability of the track surface, and the device has a simple structure, low cost, and is easy to operate.
Patent Information
- Application Number
- CN202520394367.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-07
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-07
AI Technical Summary
Traditional track beam erection methods cannot meet the positioning accuracy requirements of high-speed maglev integral track beams, resulting in insufficient track surface smoothness and stability.
By employing an active and a passive fine-tuning mechanism, combined with jacks and rolling steel bars, precise adjustment is achieved by accurately controlling the lateral and longitudinal positions of the track beam, thus meeting the erection accuracy requirements of the high-speed maglev integral track beam.
It achieves precise positioning of the high-speed magnetic levitation integral track beam, ensuring the smoothness and stability of the track surface. The device has a simple structure, low cost, and is easy to operate, and will not experience unstable lifting phenomena.
Smart Images
Figure CN223837824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-speed magnetic levitation track beam technology, specifically a high-speed magnetic levitation integral track beam erection and fine adjustment device. Background Technology
[0002] High-speed maglev trains are increasingly favored due to their high speed, strong stability, and low environmental pollution. Because of the high speeds involved in their operation, high-speed maglev trains require highly smooth and stable track surfaces to ensure safety and passenger comfort, necessitating high precision in track beam installation. Traditional track beam installation methods involve marking the center of the supports and the elevation of the bearing pads, then using a girder erecting machine or crane to place the track beams onto the supports. However, this method lacks the precision required for the integral track beam installation of high-speed maglev trains. Summary of the Invention
[0003] In order to solve the problem that the positioning accuracy of traditional track beam erection methods cannot meet the positioning accuracy required for high-speed maglev integral track beams, this utility model provides a fine-tuning device for the erection of high-speed maglev integral track beams.
[0004] This utility model is achieved using the following technical solution:
[0005] A high-speed magnetic levitation integral track beam erection fine adjustment device includes an active fine adjustment mechanism and a driven fine adjustment mechanism;
[0006] The active fine-tuning mechanism includes a base box, an active transverse rolling assembly, horizontally arranged active transverse spacer plates, an active longitudinal rolling assembly, horizontally arranged active longitudinal spacer plates, active lifting jacks arranged axially in the vertical direction, two transverse jacks arranged axially in the front-back direction, and two longitudinal jacks arranged axially in the left-right direction. The base box is a square, cylindrical box with an upward-opening design. The active transverse rolling assembly includes multiple active transverse rolling steel bars arranged front-back in the center of the base box, with their axial directions all in the left-right direction. The active transverse spacer plates are arranged on the active transverse rolling assembly. The assembly includes multiple active longitudinal rolling steel bars arranged horizontally on the active transverse moving spacer steel plate and with their axial directions all along the front-back direction. The active longitudinal moving spacer steel plate is arranged on the active longitudinal rolling assembly. Active lifting jacks are arranged on the active longitudinal moving spacer steel plate. Two transverse moving jacks are located inside the base box, with their fixed ends fixed to the inner sides of the front and rear side plates of the base box, and their telescopic ends abutting against the front and rear ends of the active transverse moving spacer steel plate, respectively. Two longitudinal moving jacks are located inside the base box, with their fixed ends fixed to the inner sides of the left and right side plates of the base box, and their telescopic ends abutting against the left and right ends of the active longitudinal moving spacer steel plate, respectively.
[0007] The driven fine-tuning mechanism includes a driven transverse rolling assembly, a driven transverse spacer plate, a driven longitudinal rolling assembly, a driven longitudinal spacer plate, and driven lifting jacks arranged axially in the up-down direction. The driven transverse rolling assembly includes multiple driven transverse rolling steel bars arranged front-to-back with their axial directions all in the left-to-right direction. The driven transverse spacer plate is arranged on the driven transverse rolling assembly. The driven longitudinal rolling assembly includes multiple driven longitudinal rolling steel bars arranged left-to-right on the driven transverse spacer plate with their axial directions all in the front-to-back direction. The driven longitudinal spacer plate is arranged on the driven longitudinal rolling assembly. The driven lifting jacks are arranged on the driven longitudinal spacer plate.
[0008] How to use:
[0009] 1) Track beam erection: a) Mark the bottom outline of the track beam on the ground in advance according to the design location; b) Use two 300t truck cranes to lift the track beams one by one. In addition, to ensure the safety of the support installation personnel, the track beams are temporarily placed on cement supports. The track beams will be lowered into position after the supports are installed; c) When lowering the track beams, the technicians use a plumb line to keep the bottom edge of the track beam close to the ground until the tip of the plumb line basically coincides with the bottom outline of the track beam marked on the ground. At this time, the deviation between the track beam and the design position is basically within 5mm.
[0010] 2) Track beam fine-tuning: Due to the extremely high requirements for long and short wave data of maglev lines, in order to ensure the smoothness of the entire line, the track beams are fine-tuned uniformly after all the track beams are erected. During fine-tuning, the device is generally used in pairs of two sets, with the two sets located at both ends of the longitudinal direction of the track beam (the longitudinal direction of the track beam is consistent with the length direction of the track beam and is consistent with the left and right direction mentioned in this article). In addition, the active fine-tuning mechanism and the driven fine-tuning mechanism in each set are located at the two transverse ends of one end of the track beam and are arranged inside the track beam support. Under normal circumstances, the bottom of the track beam is very close to the ground, and the active fine-tuning mechanism and the driven fine-tuning mechanism can be placed directly on the ground. When the distance is far, they can be placed by setting up heightening brackets. Before fine-tuning, symmetrically extend the two lateral and two longitudinal jacks in each active fine-tuning mechanism and tighten and fix their corresponding active lateral and longitudinal partition plates. During fine-tuning, first extend the two active lifting jacks and two driven lifting jacks according to the elevation of the track beam, and adjust the beam surface elevation as needed. Once the elevation is accurately in place, lock the two active lifting jacks and two driven lifting jacks, and begin horizontal fine-tuning. When lateral fine-tuning of the track beam is required, the four lateral jacks in the two active fine-tuning mechanisms extend and retract in coordination, thereby moving the track beam laterally until the lateral fine-tuning of the track beam is in place, then lock the four lateral jacks. When longitudinal fine-tuning of the track beam is required, the two active lifting jacks extend and retract in coordination, thereby moving the track beam laterally. The four longitudinal jacks in the adjustment mechanism work together to extend and retract, thereby moving the track beam longitudinally until the longitudinal adjustment of the track beam is in place. Once locked, the four longitudinal jacks are then locked. If the track beam elevation changes at this point, two active lifting jacks and two passive lifting jacks are used for further fine-tuning until both the level and elevation meet the required accuracy for track beam erection. Finally, four temporary steel supports are inserted into the bottom of the track beam near the supports. These supports are equipped with adjustable bolts, and a torque amplification wrench is used to tighten them firmly against the bottom of the track beam. Then, the two active lifting jacks and two passive lifting jacks are retracted, and the two sets of fine-tuning devices are removed. During the fine-tuning process, the passive fine-tuning mechanism provides overall support for the track beam and follows the movement of the active fine-tuning mechanism. Furthermore, because this device is a fine-tuning device for the track beam, its adjustment range is relatively small, so instability does not occur during lifting.
[0011] Furthermore, there are four active transverse rolling steel bars arranged at intervals, four active longitudinal rolling steel bars arranged at intervals, four driven transverse rolling steel bars arranged at intervals, and four driven longitudinal rolling steel bars arranged at intervals. The structure is specified and standardized.
[0012] Furthermore, the extension and retraction accuracy of the two transverse jacks, the two longitudinal jacks, the active lifting jack, and the driven lifting jack is 0.2mm, which facilitates meeting the accuracy requirements for the erection of the track beam.
[0013] The beneficial effects of this utility model are as follows: the track beam erection fine adjustment device described in this utility model can achieve the accuracy requirements of high-speed magnetic levitation integral track beam erection, and the device has a simple structure, low cost, convenient transportation and operation. Attached Figure Description
[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 A schematic diagram showing the arrangement of the active fine-tuning mechanism and the driven fine-tuning mechanism;
[0017] Figure 2 A top view of the active fine-tuning mechanism;
[0018] Figure 3 for Figure 2 Sectional view of AA;
[0019] Figure 4 for Figure 2 BB section view;
[0020] Figure 5 This is a schematic diagram of the driven fine-tuning mechanism;
[0021] Figure 6 This is a schematic diagram showing the state of the track beam during lateral fine-tuning.
[0022] Figure 7 This is a schematic diagram of the track beam during longitudinal fine-tuning.
[0023] In the diagram: 1-Active fine-tuning mechanism, 11-Base box, 12-Active transverse rolling steel bar, 13-Active transverse spacer plate, 14-Active longitudinal rolling steel bar, 15-Active longitudinal spacer plate, 16-Active lifting jack, 17-Transverse jack, 18-Longitudinal jack, 2-Driven fine-tuning mechanism, 21-Driven transverse rolling steel bar, 22-Driven transverse spacer plate, 23-Driven longitudinal rolling steel bar, 24-Driven longitudinal spacer plate, 25-Driven lifting jack, 3-Rail beam. Detailed Implementation
[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.
[0025] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.
[0027] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0028] like Figure 1-7 As shown, a high-speed magnetic levitation integral track beam erection fine adjustment device includes an active fine adjustment mechanism 1 and a driven fine adjustment mechanism 2.
[0029] The active fine-tuning mechanism 1 includes a base box 11, an active transverse rolling assembly, a horizontally arranged active transverse spacing steel plate 13, an active longitudinal rolling assembly, a horizontally arranged active longitudinal spacing steel plate 15, active lifting jacks 16 arranged axially in the vertical direction, two transverse jacks 17 arranged axially in the front-back direction, and two longitudinal jacks 18 arranged axially in the left-right direction. The base box 11 is a square, barrel-shaped box with an upward opening. The active transverse rolling assembly includes multiple active transverse rolling steel bars 12 arranged front-back in the middle of the base box 11, with their axial directions all in the left-right direction. The active transverse spacing steel plate 13 is arranged on the active transverse rolling assembly. The active longitudinal rolling assembly includes... Multiple active longitudinal rolling steel bars 14 are arranged horizontally on the active transverse moving interval steel plate 13 and their axial direction is arranged in the front-back direction. The active longitudinal moving interval steel plate 15 is arranged on the active longitudinal moving rolling group. The active lifting jack 16 is arranged on the active longitudinal moving interval steel plate 15. Two transverse moving jacks 17 are located inside the base box 11 and their fixed ends are respectively fixed to the inner sides of the front and rear side plates of the base box 11, and their telescopic ends abut against the front and rear ends of the active transverse moving interval steel plate 13. Two longitudinal moving jacks 18 are located inside the base box 11 and their fixed ends are respectively fixed to the inner sides of the left and right side plates of the base box 11, and their telescopic ends abut against the left and right ends of the active longitudinal moving interval steel plate 15.
[0030] The driven fine-tuning mechanism 2 includes a driven transverse rolling assembly, a driven transverse spacer plate 22, a driven longitudinal rolling assembly, a driven longitudinal spacer plate 24, and a driven lifting jack 25 arranged axially in the up-down direction. The driven transverse rolling assembly includes multiple driven transverse rolling steel bars 21 arranged front-to-back with their axial directions all in the left-to-right direction. The driven transverse spacer plate 22 is arranged on the driven transverse rolling assembly. The driven longitudinal rolling assembly includes multiple driven longitudinal rolling steel bars 23 arranged left-to-right on the driven transverse spacer plate 22 with their axial directions all in the front-to-back direction. The driven longitudinal spacer plate 24 is arranged on the driven longitudinal rolling assembly, and the driven lifting jack 25 is arranged on the driven longitudinal spacer plate 24.
[0031] How to use:
[0032] 1) Erection of track beam 3: a. Mark the bottom outline of track beam 3 on the ground in advance according to the design position; b. Use two 300t truck cranes to lift track beam 3 and erect it piece by piece. In addition, to ensure the safety of the support installation personnel, track beam 3 is temporarily placed on cement supports. After the supports are installed, track beam 3 will be lowered into position; c. When lowering track beam 3, the technicians use a plumb line to keep it close to the bottom edge of track beam 3 and make the tip of the plumb line basically coincide with the bottom outline of track beam 3 marked on the ground before lowering it into position. At this time, the deviation of track beam 3 from the design position is basically within 5mm.
[0033] 2) Fine adjustment of track beam 3: Due to the extremely high requirements of long and short wave data for maglev lines, in order to ensure the smoothness of the entire line, the track beam 3 is finely adjusted after all the tracks are erected. During fine adjustment, the device is generally used in pairs of two sets. The two sets are located at both ends of the longitudinal direction of track beam 3 (the longitudinal direction of track beam 3 is consistent with the length direction of track beam 3 and is consistent with the left and right direction mentioned in this article). In addition, the active fine adjustment mechanism 1 and the driven fine adjustment mechanism 2 in each set are located at the two transverse ends of one end of track beam 3 and are arranged inside the support of track beam 3. Under normal circumstances, the bottom of track beam 3 is very close to the ground, and the active fine adjustment mechanism 1 and the driven fine adjustment mechanism 2 can be placed directly on the ground. When the distance is far, they can be placed by setting up a heightening bracket. Before fine-tuning, symmetrically extend the two transverse jacks 17 and two longitudinal jacks 18 in each active fine-tuning mechanism 1, and tighten and fix their corresponding active transverse partition plates and active longitudinal partition plates 15. During fine-tuning, first extend the two active lifting jacks 16 and two driven lifting jacks 25 according to the elevation of the track beam 3, and adjust the beam surface elevation of the track beam 3 as it is measured. After the elevation is accurately in place, lock the two active lifting jacks 16 and two driven lifting jacks 25, and begin horizontal fine-tuning. When it is necessary to fine-tune the transverse direction of the track beam 3, the four transverse jacks 17 in the two active fine-tuning mechanisms 1 cooperate to extend and retract, thereby driving the track beam 3 to move laterally until the transverse fine-tuning of the track beam 3 is in place, then lock the four transverse jacks 17. When it is necessary to fine-tune the longitudinal direction of the track beam 3, the two... The four longitudinal jacks 18 in the active fine-tuning mechanism 1 extend and retract in coordination, thereby driving the longitudinal movement of the track beam 3 until the longitudinal fine-tuning of the track beam 3 is in place. Once locked, the four longitudinal jacks 18 are locked in place. At this point, if the elevation of the track beam 3 changes, it is fine-tuned again using two active lifting jacks 16 and two driven lifting jacks 25 until both the level and elevation meet the required erection accuracy of the track beam 3. Finally, four temporary steel supports are inserted into the bottom of the track beam 3 near the supports. The steel supports are equipped with adjustable bolts. Using a torque amplification wrench, the steel supports are tightened against the bottom of the track beam 3. Then, the two active lifting jacks and two driven lifting jacks 25 are retrieved, and the two sets of fine-tuning devices are withdrawn. During the fine-tuning process, the driven fine-tuning mechanism 2 provides overall support for the track beam 3 and follows the movement of the active fine-tuning mechanism 1. Furthermore, since this device is for the fine-tuning of the track beam 3, its adjustment range is relatively small, so instability will not occur during lifting.
[0034] In specific implementation, there are four active transverse rolling steel bars 12 arranged at intervals, four active longitudinal rolling steel bars 14 arranged at intervals, four driven transverse rolling steel bars 21 arranged at intervals, and four driven longitudinal rolling steel bars 23 arranged at intervals. The structure is specified and standardized.
[0035] In this specific embodiment, the extension and retraction accuracy of the two transverse jacks 17, the two longitudinal jacks 18, the active lifting jack 16, and the driven lifting jack 25 is 0.2mm, which facilitates meeting the erection accuracy requirements of the track beam 3.
[0036] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.
Claims
1. A high-speed magnetic levitation integral track beam erection and fine-tuning device, characterized in that, Including an active fine-tuning mechanism (1) and a passive fine-tuning mechanism (2); The active fine-tuning mechanism (1) includes a base box (11), an active transverse rolling assembly, a horizontally arranged active transverse spacing steel plate (13), an active longitudinal rolling assembly, a horizontally arranged active longitudinal spacing steel plate (15), an active lifting jack (16) whose axial direction is vertical, two transverse jacks (17) whose axial direction is horizontal, and two longitudinal jacks (18) whose axial direction is horizontal. The base box (11) is a square barrel-shaped box with an upward opening. The active transverse rolling assembly includes multiple active transverse rolling steel bars (12) arranged horizontally in the middle of the base box (11) and whose axial direction is horizontal. The active transverse spacing steel plate (13) is arranged on the active transverse rolling assembly. The active longitudinal rolling assembly includes multiple Active longitudinal rolling steel bars (14) are arranged on the active transverse spacing steel plate (13) and their axial direction is arranged in the front-back direction. Active longitudinal spacing steel plate (15) is arranged on the active longitudinal rolling group. Active lifting jack (16) is arranged on the active longitudinal spacing steel plate (15). Two transverse jacks (17) are located in the base box (11) and their fixed ends are respectively fixed to the inner side of the front and rear side plates of the base box (11), and their telescopic ends are respectively abutted to the front and rear ends of the active transverse spacing steel plate (13). Two longitudinal jacks (18) are located in the base box (11) and their fixed ends are respectively fixed to the inner side of the left and right side plates of the base box (11), and their telescopic ends are respectively abutted to the left and right ends of the active longitudinal spacing steel plate (15). The driven fine adjustment mechanism (2) includes a driven transverse rolling group, a driven transverse spacer plate (22), a driven longitudinal rolling group, a driven longitudinal spacer plate (24), and a driven lifting jack (25) arranged axially in the up-down direction. The driven transverse rolling group includes multiple driven transverse rolling steel bars (21) arranged front-to-back and whose axial direction is arranged in the left-to-right direction. The driven transverse spacer plate (22) is arranged on the driven transverse rolling group. The driven longitudinal rolling group includes multiple driven longitudinal rolling steel bars (23) arranged left-to-right on the driven transverse spacer plate (22) and whose axial direction is arranged in the front-to-back direction. The driven longitudinal spacer plate (24) is arranged on the driven longitudinal rolling group. The driven lifting jack (25) is arranged on the driven longitudinal spacer plate (24).
2. The high-speed magnetic levitation integral track beam erection and fine-tuning device according to claim 1, characterized in that, There are four active transverse rolling steel bars (12) arranged at intervals, four active longitudinal rolling steel bars (14) arranged at intervals, four passive transverse rolling steel bars (21) arranged at intervals, and four passive longitudinal rolling steel bars (23) arranged at intervals.
3. The high-speed magnetic levitation integral track beam erection and fine-tuning device according to claim 2, characterized in that, The extension accuracy of the two horizontal jacks (17), the two vertical jacks (18), the active lifting jack (16), and the driven lifting jack (25) is 0.2 mm.