Accurate positioning device and adjusting method for high-speed maglev train rail

Abstract

The invention discloses a high-speed maglev train rail accurate positioning device and an adjusting method, and relates to the technical field of maglev trains. The accurate positioning device for the high-speed maglev train rail comprises an adjusting assembly installed between a foundation and a train rail beam. The adjusting assembly comprises a first cushion block, a second cushion block and a first bolt, the top face of the first cushion block is provided with a first inclined face, the bottom face of the second cushion block is provided with a second inclined face, and the first inclined face and the second inclined face are attached to each other and are in sliding connection. The first bolt is used for adjusting the transverse distance between the first cushion block and the second cushion block so that the height of the second cushion block can be changed, and therefore the height of the train track beam can be adjusted.

Description

Technical Field

[0001] The invention relates to the technical field of maglev trains, and in particular to a high-speed maglev train track precision positioning device and an adjustment method. Background Art

[0002] Maglev rail transit is increasingly favored by countries around the world due to its high speed, low cost, low noise and environmental protection. Currently, the maglev rail beams are divided into two types: steel beams and concrete composite beams. The accuracy of the concrete composite beams mainly depends on the accuracy of the template manufacturing and the accuracy of the accessories on the beam.

[0003] Due to the accuracy errors in the prefabrication of the maglev track beam itself and the processing errors of the steel structure connecting the track beam at the bottom of the track beam, the accumulated errors make it difficult for ordinary connection methods to meet the operating requirements of the maglev train.

[0004] Therefore, there is an urgent need for a technology that can effectively save manpower and time and can achieve fine adjustment of the track beam of a maglev train. Summary of the invention

[0005] In order to meet the technical requirement of "realizing fine adjustment of the track beam of a maglev train" in the above background technology, the present invention provides a high-speed maglev train track precise positioning device and adjustment method.

[0006] The technical solution adopted by the present invention to solve the above technical problems is: A high-speed maglev train track precision positioning device, comprising an adjustment component installed between a foundation and a train track beam; the adjustment component comprises a first plate, a sleeve, a first stud, a first cushion block, a second cushion block, a top plate and a first bolt; the first plate is placed on the surface of the foundation, the sleeve is placed vertically on the bottom surface of the first plate and is plugged and fixed in the foundation; the first cushion block is fixedly installed on the upper surface of the first plate, and the second cushion block is slidably arranged above the first cushion block; the top surface of the first cushion block is provided with a first inclined surface, the bottom surface of the second cushion block is provided with a second inclined surface, the first inclined surface and the second inclined surface are mutually abutted and slidably connected; the top plate pressure The first stud is connected to the sleeve at the bottom and to the nut at the top, and the first stud is longitudinally inserted into the first plate body, the first pad, the second pad and the top plate; the first nut is crimped on the top surface of the top plate; a vertical plate portion is provided at the edge of the first pad, and a first mounting hole is provided on the vertical plate portion, and a first screw hole adapted to the first mounting hole is provided on the side wall of the second pad; the first bolt penetrates the first mounting hole and is screwed to the first screw hole; the first bolt is used to adjust the lateral distance between the first pad and the second pad to change the height of the second pad.

[0007] As a further optimization scheme of the present invention, a guide column is provided on the top surface of the first cushion block, and a receiving groove adapted for the guide column is opened in the second cushion block; the cross-section of the guide column is rectangular, and the outer wall of the guide column and the inner wall of the receiving groove are in contact with each other and slidably connected.

[0008] As a further optimization solution of the present invention, the bottom surface of the first cushion block and the top surface of the second cushion block are parallel to each other.

[0009] As a further optimization scheme of the present invention, the vertical plate portion is provided with a second mounting hole, and the second pad block side wall is provided with a second screw hole adapted to the second mounting hole; the adjustment component also includes a limiting column, a middle part of which is provided with an abutment ring, one end of the limiting column is inserted into the second screw hole and is adjustably connected to the second screw hole through a thread, and the other end can be adapted to be inserted into the second mounting hole; the end surface of the limiting column away from the second screw hole is provided with a driving plug hole with a hexagonal cross-section; the abutment ring can be crimped against the inner wall of the vertical plate portion and apply a limiting thrust to the vertical plate portion, and the column head of the first bolt can be crimped against the outer wall of the vertical plate portion and apply a limiting tension to the vertical plate portion.

[0010] As a further optimization scheme of the present invention, one second screw hole is provided and arranged in the middle of the side wall of the second pad block, two first screw holes are provided and arranged on both sides of the second screw hole; two first mounting holes are provided and are adapted one by one with the two first screw holes.

[0011] As a further optimization solution of the present invention, the first mounting hole and the second mounting hole are both strip holes opened longitudinally.

[0012] As a further optimization scheme of the present invention, the adjustment component also includes a snap-fit ​​plate with an N-shaped cross-section, which is snapped into the top of the vertical plate portion; the two side walls of the snap-fit ​​plate are respectively provided with a first circular hole adapted to be aligned and connected to the first mounting hole and a second circular hole adapted to be aligned and connected to the second mounting hole.

[0013] As a further optimization solution of the present invention, the snap-fit ​​plate can slide longitudinally along the vertical plate portion; the two inner side walls of the snap-fit ​​plate are respectively attached to and slidably connected with the two outer side walls of the vertical plate portion.

[0014] As a further optimization solution of the present invention, downwardly extending limiting fins are provided at two edge positions of the bottom surface of the top plate, and the inner walls of the limiting fins are in contact with and slidably connected to the side walls of the second cushion block.

[0015] A method for adjusting a high-speed maglev train track precision positioning device comprises an upward adjustment method and a downward adjustment method.

[0016] The steps of the upward adjustment method include: S1, rotating the first nut to form a first travel gap between the first nut and the top plate, and then stopping the rotation of the first nut; S2, rotating the limit column to form a second travel gap between the abutment ring and the inner wall of the vertical plate portion, and then stopping the rotation of the limit column; S3, rotating the first bolt to reduce the lateral distance between the first pad and the second pad, so that the second pad moves upward along the first inclined surface; when the height of the top surface of the second pad reaches the required value, stop rotating the first bolt; S4, rotating the limit column until the abutment ring is pressed against the inner wall of the vertical plate portion, thereby locking the lateral position of the second pad; S5, rotating the first nut to press the first nut against the top plate, thereby locking the longitudinal position of the second pad.

[0017] The steps of the downward adjustment method include: S1, rotating the first bolt to increase the lateral distance between the first pad and the second pad, so that the second pad descends along the first inclined surface under the action of its own weight; when the height of the top surface of the second pad reaches the required value, stop rotating the first bolt; S2, rotating the limit column until the abutment ring is pressed against the inner wall of the vertical plate portion to achieve locking of the lateral position of the second pad; S3, rotating the first nut so that the first nut is pressed against the top plate to achieve locking of the longitudinal position of the second pad.

[0018] In summary, the present invention is beneficial in that: (1) The present invention has a simple structure and reliable functions. The adjustment assembly includes a first pad, a second pad and a first bolt. The top surface of the first pad is provided with a first inclined surface, and the bottom surface of the second pad is provided with a second inclined surface. The first inclined surface and the second inclined surface are in contact with each other and slidably connected. The first bolt is used to adjust the lateral distance between the first pad and the second pad so as to change the height of the second pad, thereby realizing the adjustment of the height of the train track beam. The inclination angle of the first inclined surface and the second inclined surface is 15° to 35°, which is used to realize fine adjustment.

[0019] (2) The abutment ring can press against the inner wall of the vertical plate portion and apply a limiting thrust to the vertical plate portion, and the column head of the first bolt can press against the outer wall of the vertical plate portion and apply a limiting tension to the vertical plate portion, thereby clamping and limiting the two sides of the vertical plate portion, thereby reducing the vibration amplitude of the second gasket and the sliding distance along the first inclined surface, so that the subsequent screw-on installation of the first nut can press the second gasket at the bottom dead center position as much as possible, thereby reducing the risk of the first nut loosening.

[0020] (3) The function of the first nut is to prevent the second pad from sliding in the upper right direction along the first inclined surface by transmitting a crimping force, which direction can be decomposed into a horizontal rightward direction and a horizontal upward direction; the abutment ring can abut against the inner wall of the vertical plate portion, and the limiting column can limit the horizontal rightward movement of the second pad. The second pad abuts against the left dead point of the movable range, and at the same time, the external thread of the first bolt is crimped against the right side wall of the internal thread groove of the first screw hole, thereby reducing the gap for vibration of the second pad caused by the clearance between the first bolt and the first screw hole, further reducing the risk of loosening of the first nut, and improving the overall structural compactness of the adjustment assembly; at the same time, the abutment ring can assist the first nut in applying a limiting force to the second pad, thereby making up for the already insufficient tightening force of the first nut. 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 component; Figure 3 It is a schematic diagram of the installation structure of the first cushion block and the second cushion block; Figure 4 It is a schematic diagram of the installation structure of the top plate and the second cushion block; Figure 5 It is a schematic diagram of the front view of the structure of the adjustment component; Figure 6 is a schematic diagram of the top view of the structure of the first cushion block and the second cushion block; Figure 7 It is a schematic top view of the installation position and structure of the first bolt and the limiting column; Figure 8 It is a schematic diagram of the installation position and structural section of the buckle plate; Fig. 9 Schematic diagram of the buckle plate structure.

[0022] Description of reference numerals: In the figure, 1. Foundation; 2. Adjustment assembly; 21. First plate; 22. Sleeve; 23. First stud; 231. First nut; 24. First spacer; 241. Vertical plate; 242. First mounting hole; 243. Guide column; 244. Second mounting hole; 25. Second spacer; 251. First screw hole; 252. Accommodating through groove; 253. Second screw hole; 26. Top plate; 261. Limiting fin; 27. First bolt; 28. Limiting column; 281. Abutting ring; 29. ​​Snap plate; 291. First circular hole; 292. Second circular hole; 2401, first plug-in hole; 2601, second plug-in hole. 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-speed maglev train track precision positioning device, including an adjustment component 2 installed between a foundation 1 and a train track beam. The foundation 1 is connected to the lower part of the adjustment component 2, and the train track beam is connected to the upper part of the adjustment component 2. The height of the adjustment component 2 is adjustable, thereby achieving the adjustment of the height of the train track beam. The foundation 1 is a reinforced concrete structure, so it has excellent load-bearing capacity.

[0024] Reference Figure 1-2 The adjustment assembly 2 includes a first plate 21, a sleeve 22, a first stud 23, a first pad 24, a second pad 25, a top plate 26 and a first bolt 27; the first plate 21 is placed on the surface of the foundation 1, the sleeve 22 is placed vertically on the bottom of the first plate 21 and is inserted and fixed in the foundation 1, and the sleeve 22 is vertically fixedly connected to the first plate 21 (for example, by an integrated fixed connection or by a bolt fixed connection); the foundation 1 is a reinforced concrete structure; the surface of the sleeve 22 is provided with an annular rib to increase its contact area with the concrete to increase stability; the sleeve 22 is inserted into the steel bars in the foundation 1 (for example, a fixing hole for sleeve steel bars is provided in the radial direction of the sleeve 22) to increase stability. The foundation 1 is formed in a cast-in-place or prefabricated form; after the first plate 21, the sleeve 22 are connected to the steel mesh, the concrete is poured and hardened, so that the first plate 21, the sleeve 22 and the foundation 1 form a stable load-bearing structure to ensure that the adjustment assembly 2 and the train track beam will not sink.

[0025] Reference Figure 1 to Figure 4 The first pad 24 is fixedly mounted on the upper surface of the first plate 21 (for example, fixedly connected by bolts), and the second pad 25 is slidably arranged above the first pad 24; the top surface of the first pad 24 is provided with a first inclined surface, and the bottom surface of the second pad 25 is provided with a second inclined surface, and the first inclined surface and the second inclined surface are in contact with each other and slidably connected; when the second pad 25 slides along the first inclined surface and / or the second inclined surface, its own height can be adjusted, thereby supporting the train track beam at different height positions.

[0026] Reference Figure 2 and Figure 3 The vertical section of the first pad 24 is an upright right triangle, and the angle R1 between the first inclined surface and the bottom surface of the first pad 24 is 15° to 35°; the vertical section of the second pad 25 is an inverted right triangle, and the angle R2 between the second inclined surface and the bottom surface of the first pad 24 is equal to R1, so that the bottom surface of the first pad 24 and the top surface of the second pad 25 are parallel to each other, thereby preventing the train track beam from tilting.

[0027] Reference Figure 2 to Figure 4 The top plate 26 is crimped on the top surface of the second cushion block 25, and the top plate 26 and the second cushion block 25 can slide relative to each other laterally. The bottom end of the first stud 23 is threadedly connected to the sleeve 22, and the top end is threadedly connected to the first nut. The first stud 23 is longitudinally inserted into the first plate body 21, the first cushion block 24, the second cushion block 25 and the top plate 26; the first nut 231 is crimped on the top surface of the top plate 26; Reference Figure 2 to Figure 5 A vertical plate portion 241 is provided at the edge of the first cushion block 24 (for example, through an integrated fixed connection or a bolt fixed connection), the vertical plate portion 241 is provided with a first mounting hole 242, and a first screw hole 251 adapted to the first mounting hole 242 is provided at the side wall of the second cushion block 25; the first bolt 27 penetrates the first mounting hole 242 and is screwed to the first screw hole 251; the first bolt 27 is used to adjust the lateral distance between the first cushion block 24 and the second cushion block 25, thereby changing the height of the second cushion block 25.

[0028] Reference Figure 2 to Figure 5 The top surface of the first cushion block 24 is provided with a guide column 243 (for example, through an integrated fixed connection or a bolted fixed connection), and the second cushion block 25 is provided with a receiving slot 252 adapted to the guide column 243; the guide column 243 is placed in the receiving slot 252. The cross section of the guide column 243 is rectangular, and the two outer side walls of the guide column 243 and the two inner side walls of the receiving slot 252 are mutually attached and slidably connected, so that the second cushion block 25 can be sleeved on the outer periphery of the guide column 243 and slide along the length direction of the first cushion block 24.

[0029] Reference Figure 4 , the vertical plate portion 241 is arranged at the short edge position of the first cushion block 24; when the second cushion block 25 slides along the length direction of the first cushion block 24, the gap width between the second cushion block 25 and the vertical plate portion 241 changes synchronously.

[0030] Reference Figure 2 and Figure 5 The first cushion block 24 is provided with a vertical first plug hole 2401, which is a through hole and passes through the guide column 243; the top plate 26 is provided with a vertical second plug hole 2601, which is located directly above the first plug hole 2401; the first plate body 21 is provided with a third plug hole, which is located directly below the first plug hole 2401. The first stud 23 is inserted into the first plug hole 2401, the second plug hole 2601 and the third plug hole; the sleeve 22 is provided at the position of the third plug hole on the bottom surface of the first plate body 21; the first nut 231 is provided at the position of the second plug hole 2601 on the top surface of the top plate 26. The first nut 231 and the sleeve 22 apply limiting pressing force to the first plate body 21, the first cushion block 24 and the second cushion block 25 from the upper and lower directions.

[0031] Reference Figure 2 , Figure 3 and Figure 5 In the conventional technology, instead of using the top plate 26, a strip hole is directly opened on the second pad 25, so that the first stud 23 is inserted into the strip hole and the first nut 231 is crimped on the edge of the strip hole. However, this method will cause a suspended part on the bottom surface of the first nut 231, resulting in the nut and the crimping position of the second pad 25 being subjected to concentrated force and easily deformed. In this patent, the second plug hole 2601 is circular, so the bottom surface of the first nut 231 can be completely crimped on the top plate 26, avoiding the problem of concentrated force.

[0032] Reference Figure 2 , Figure 3 and Figure 5 , an accommodation gap is provided between the top surface of the guide column 243 and the bottom surface of the top plate 26. Since the second cushion block 25 slides obliquely along the first inclined surface on the outer periphery of the guide column 243, that is, during the sliding process of the second cushion block 25, the relative height of the top plate 26 and the guide column 243 will change, and the accommodation gap is used to provide an accommodation space for the relative change of the height of the guide column 243, so that the second cushion block 25 can always fit with the top plate 26 during the sliding process, and the first nut 231 can apply a limiting pressing force to the second cushion block 25 through the top plate 26 to prevent the structure between the first cushion block 24 and the second cushion block 25 from loosening.

[0033] Reference Figure 2 , Figure 3 and Figure 5 , the accommodation gap is located directly below the first nut 231, then the portion of the top plate 26 at the position of the first nut 231 can only be subjected to pressure from above, and cannot be subjected to the support force from the second pad 25, which has lower structural stability than the traditional two-side clamping method; during the operation of the train, the adjustment component 2 is inevitably subjected to vibration force, and the vibration causes a slight lateral relative slip between the first nut 231 and the top plate 26 (the first stud 23 and the second plug hole 2601 are matched through the gap to provide space for the lateral relative slip between the first nut 231 and the top plate 26), so that there is a risk of disengagement between the first nut 231 and the top plate 26. There is no support under the portion of the top plate 26 at the position of the first nut 231, and it is impossible to apply the same amount of tightening force as the traditional two-side clamping method (to prevent the middle part of the top plate 26 from sinking and deforming downward), and the lack of tightening force further increases the risk of disengagement of the first nut 231.

[0034] Reference Figure 6 and Figure 7, the vertical plate portion 241 is provided with a second mounting hole 244, and the second cushion block 25 is provided with a second screw hole 253 adapted to the second mounting hole 244 at the side wall position. The adjustment component 2 also includes a limiting column 28, and a contact ring 281 is provided in the middle of the limiting column 28 (for example, through an integrated fixed connection), one end of the limiting column 28 is inserted into the second screw hole 253 and is adjustably connected to the second screw hole 253 through a thread, and the other end can be adapted to be inserted into the second mounting hole 244. The end surface of the limiting column 28 away from the second screw hole 253 is provided with a driving plug hole with a hexagonal cross section; the contact ring 281 can press the inner wall of the vertical plate portion 241 and apply a limiting thrust to the vertical plate portion 241, and the column head of the first bolt 27 can press the outer wall of the vertical plate portion 241 and apply a limiting tension to the vertical plate portion 241. The column head and the abutment ring 281 of the first bolt 27 can apply a limiting force to the vertical plate portion 241 from both sides, so that the second cushion block 25 has a smaller range of motion, which can reduce the vibration amplitude of the second cushion block 25 and the sliding distance along the first inclined surface, thereby reducing the risk of loosening of the first nut 231.

[0035] Reference Figure 2 , Figure 5 and Figure 7 Since the first inclined surface and the second inclined surface cannot be perfectly fitted, and the top surface of the second pad 25 and the bottom surface of the top plate 26 cannot be perfectly fitted, during the running of the train, the weight of the train and the guide rail acts on the adjustment component 2, so that the gap between the first pad 24, the second pad 25 and the top plate 26 is reduced, and the solid parts of the first pad 24, the second pad 25 and the top plate 26 are slightly compressed. After the train passes, the gap expands and the solid rebounds, so that a slight relative movement occurs between the first pad 24, the second pad 25 and the top plate 26; during the rebound process, the second pad 25 has a tendency to slide in the upper right direction along the first inclined surface (such as Figure 2 The function of the first nut 231 is to prevent the second cushion block 25 from sliding in the upper right direction along the first inclined surface by transmitting a crimping force, and the direction can be decomposed into a horizontal rightward direction and a horizontal upward direction; the abutment ring 281 can abut against the inner wall of the vertical plate portion 241, and the limiting column 28 can limit the horizontal rightward movement of the second cushion block 25, thereby improving the overall structural compactness of the adjustment assembly 2 and reducing the risk of the first nut 231 loosening due to the vibration of the second cushion block 25; at the same time, the abutment ring 281 can assist the first nut 231 in applying a limiting force to the second cushion block 25, thereby compensating for the already insufficient tightening force of the first nut 231.

[0036] Reference Figure 6 and Figure 7The second screw hole 253 is provided at the middle of the side wall of the second cushion block 25, the first screw holes 251 are provided at two sides of the second screw hole 253, the first mounting holes 242 are provided at two sides, and the first mounting holes 242 are matched with the two first screw holes 251. The first bolts 27 are provided at two sides, and are installed in the first screw holes 251 at the left and right sides of the second screw hole 253, respectively.

[0037] Reference Figure 6 and Figure 7 The first mounting hole 242 and the second mounting hole 244 are both longitudinally opened strip holes, which are used to adapt to the longitudinally moving first bolt 27 and the limiting column 28 when the adjustment component 2 is installed, so as to prevent the first bolt 27 and the limiting column 28 from being subjected to bending moment.

[0038] Reference Figure 8 and Fig. 9 The adjustment assembly 2 also includes a buckle plate 29 with an n-shaped cross section, which is buckled on the top of the vertical plate portion 241; the two side walls of the buckle plate 29 are respectively provided with a first circular hole 291 adapted to align with and communicate with the first mounting hole 242 and a second circular hole 292 adapted to align with and communicate with the second mounting hole 244. The buckle plate 29 can slide longitudinally along the vertical plate portion 241; the two inner side walls of the buckle plate 29 are respectively attached to and slidably connected with the two outer side walls of the vertical plate portion 241. The first bolt 27 can pass through the first circular hole 291 and the first mounting hole 242 and then be screwed to the first screw hole 251; the limiting column 28 can pass through the second circular hole 292 and then be inserted into the second mounting hole 244.

[0039] Reference Figure 4 The top plate 26 is provided with downwardly extending limiting fins 261 at the two edges of the bottom surface, and the inner wall of the limiting fin 261 is attached to and slidably connected with the side wall of the second cushion block 25. The limiting fin 261 is used to limit the sliding of the top plate 26 along its width direction, thereby reducing the risk of loosening of the first nut 231. The limiting fin 261 is fixedly connected to the top plate 26 in an integrated manner.

[0040] The train track beam is pressed on the upper surface of the top plate 26. The train track beam is fixedly connected to the top plate 26 by bolts, and the surface of the foundation 1 is also equipped with auxiliary bolts and pad structures for supporting and fixing the train track beam.

[0041] A method for adjusting a high-speed maglev train track precision positioning device includes an upward adjustment method and a downward adjustment method. The steps of the up-scaling method include: S1. Rotate the first nut 231 to form a first travel gap between the first nut 231 and the top plate 26, and then stop rotating the first nut 231; S2. Rotate the limiting column 28 to form a second travel gap between the abutting ring 281 and the inner wall of the vertical plate portion 241, and then stop rotating the limiting column 28; S3. Rotate the first bolt 27 to reduce the lateral distance between the first cushion block 24 and the second cushion block 25, so that the second cushion block 25 moves upward along the first inclined surface; when the height of the top surface of the second cushion block 25 reaches the required value, stop rotating the first bolt 27; S4. Rotate the limiting column 28 until the abutting ring 281 is pressed against the inner wall of the vertical plate portion 241, so as to lock the lateral position of the second cushion block 25; S5. Rotate the first nut 231 to press the first nut 231 against the top plate 26, so as to lock the longitudinal position of the second cushion block 25; The steps of the down-regulation method include: S1. Rotate the first bolt 27 to increase the lateral distance between the first cushion block 24 and the second cushion block 25, so that the second cushion block 25 moves downward along the first inclined surface under the action of its own weight; when the height of the top surface of the second cushion block 25 reaches the required value, stop rotating the first bolt 27; S2. Rotate the limit column 28 until the abutment ring 281 is pressed against the inner wall of the vertical plate portion 241, thereby locking the lateral position of the second cushion block 25; S3. Rotate the first nut 231 so that the first nut 231 is pressed against the top plate 26, thereby locking the longitudinal position of the second cushion block 25.

[0042] The present invention has a simple structure and reliable functions. The adjustment component 2 includes a first pad 24, a second pad 25 and a first bolt 27. The top surface of the first pad 24 is provided with a first inclined surface, and the bottom surface of the second pad 25 is provided with a second inclined surface. The first inclined surface and the second inclined surface are attached to each other and slidably connected. The first bolt 27 is used to adjust the lateral distance between the first pad 24 and the second pad 25 to change the height of the second pad 25, thereby realizing the adjustment of the height of the train track beam; the inclination angle of the first inclined surface and the second inclined surface is 15°~35°, which is used to achieve fine adjustment. The abutment ring 281 can press against the inner wall of the vertical plate portion 241 and apply a limiting thrust to the vertical plate portion 241, and the column head of the first bolt 27 can press against the outer wall of the vertical plate portion 241 and apply a limiting tension to the vertical plate portion 241, thereby clamping and limiting the two sides of the vertical plate portion 241, thereby reducing the vibration amplitude of the second pad 25 and the sliding distance along the first inclined surface, so that the subsequent screw-on installation of the first nut 231 can press the second pad 25 at the bottom dead point position as much as possible, thereby reducing the risk of loosening of the first nut 231. The function of the first nut 231 is to prevent the second pad 25 from sliding in the upper right direction along the first inclined surface in the form of transmitting a crimping force, which direction can be decomposed into a horizontal rightward direction and a horizontal upward direction; the abutment ring 281 can abut against the inner wall of the vertical plate portion 241, and the limiting column 28 can limit the horizontal rightward movement of the second pad 25, and the second pad 25 abuts against the left dead point of the movable range, and at the same time, the external thread of the first bolt 27 is crimped against the right side wall of the internal thread groove of the first screw hole 251, reducing the gap for vibration of the second pad 25 caused by the clearance fit between the first bolt 27 and the first screw hole 251, further reducing the risk of loosening of the first nut 231, and improving the overall structural compactness of the adjustment assembly 2; at the same time, the abutment ring 281 can assist the first nut 231 in applying a limiting force to the second pad 25, making up for the already insufficient tightening force of the first nut 231.

[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-speed maglev train track precision positioning device, characterized in that: It includes an adjustment assembly (2) installed between a foundation (1) and a train track beam; The adjustment assembly (2) comprises a first plate (21), a sleeve (22), a first stud (23), a first cushion block (24), a second cushion block (25), a top plate (26) and a first bolt (27); the first plate (21) is placed on the surface of the foundation (1); the sleeve (22) is vertically placed on the bottom of the first plate (21) and is inserted and fixed in the foundation (1); the first cushion block (24) is fixedly mounted on the upper surface of the first plate (21); the second cushion block (25) is slidably arranged above the first cushion block (24); the top surface of the first cushion block (24) is provided with a an inclined surface, the bottom surface of the second cushion block (25) is provided with a second inclined surface, the first inclined surface and the second inclined surface are mutually abutted and slidably connected; the top plate (26) is crimped and arranged on the top surface of the second cushion block (25); the bottom end of the first stud (23) is connected to the sleeve (22), and the top end is connected to the first nut (231), the first stud (23) is longitudinally inserted into the first plate body (21), the first cushion block (24), the second cushion block (25) and the top plate (26); the first nut (231) is crimped and arranged on the top surface of the top plate (26); A vertical plate portion (241) is provided at the edge of the first cushion block (24), and a first mounting hole (242) is formed in the vertical plate portion (241); a first screw hole (251) adapted to the first mounting hole (242) is provided at the side wall of the second cushion block (25); the first bolt (27) penetrates the first mounting hole (242) and is screwed to the first screw hole (251); the first bolt (27) is used to adjust the lateral distance between the first cushion block (24) and the second cushion block (25), thereby changing the height of the second cushion block (25).

2. The high-speed maglev train track precise positioning device according to claim 1, characterized in that: A guide column (243) is provided on the top surface of the first cushion block (24), and a receiving slot (252) adapted to the guide column (243) is provided on the second cushion block (25); the cross section of the guide column (243) is rectangular, and the outer side wall of the guide column (243) and the inner side wall of the receiving slot (252) are mutually abutted and slidably connected.

3. The high-speed maglev train track precise positioning device according to claim 2, characterized in that: The bottom surface of the first cushion block (24) and the top surface of the second cushion block (25) are parallel to each other.

4. The high-speed maglev train track precise positioning device according to claim 3, characterized in that: The vertical plate portion (241) is provided with a second mounting hole (244), and the side wall of the second cushion block (25) is provided with a second screw hole (253) adapted to fit the second mounting hole (244); The adjustment assembly (2) further comprises a limiting column (28), wherein a contact ring (281) is provided in the middle of the limiting column (28); one end of the limiting column (28) is inserted into the second screw hole (253) and is adjustably connected to the second screw hole (253) via a thread, and the other end is adaptable and inserted into the second mounting hole (244); an end surface of the limiting column (28) away from the second screw hole (253) is provided with a driving plug hole with a hexagonal cross-section; the contact ring (281) is capable of pressing against the inner wall of the vertical plate portion (241) and applying a limiting thrust to the vertical plate portion (241); and the column head of the first bolt (27) is capable of pressing against the outer wall of the vertical plate portion (241) and applying a limiting tension to the vertical plate portion (241).

5. The high-speed maglev train track precise positioning device according to claim 4, characterized in that: One of the second screw holes (253) is provided and is arranged in the middle of the side wall of the second cushion block (25); two of the first screw holes (251) are provided and are arranged on both sides of the second screw hole (253); and two of the first mounting holes (242) are provided and are matched one by one with the two first screw holes (251).

6. The high-speed maglev train track precise positioning device according to claim 5, characterized in that: The first mounting hole (242) and the second mounting hole (244) are both strip-shaped holes opened longitudinally.

7. The high-speed maglev train track precise positioning device according to claim 6, characterized in that: The adjustment assembly (2) further comprises a buckling plate (29) having an N-shaped cross section, the buckling plate (29) being buckled onto the top end of the vertical plate portion (241); and a first circular hole (291) adapted to align with and communicate with the first mounting hole (242) and a second circular hole (292) adapted to align with and communicate with the second mounting hole (244) are respectively provided at two side walls of the buckling plate (29).

8. The high-speed maglev train track precise positioning device according to claim 7, characterized in that: The buckling plate (29) is capable of sliding longitudinally along the vertical plate portion (241); the two inner side walls of the buckling plate (29) are respectively attached to and slidably connected with the two outer side walls of the vertical plate portion (241).

9. The high-speed maglev train track precise positioning device according to claim 8, characterized in that: The bottom surface of the top plate (26) is provided with downwardly extending limiting fins (261) at two edge positions, and the inner wall of the limiting fin (261) is in contact with and slidably connected to the side wall of the second cushion block (25).

10. A method for adjusting the high-speed maglev train track precision positioning device according to claim 9, characterized in that: Including upward adjustment method and downward adjustment method, The steps of the upward adjustment method include: S1, rotating the first nut (231) to form a first travel gap between the first nut (231) and the top plate (26), and then stopping the rotation of the first nut (231); S2, rotating the limiting column (28) so that a second travel gap is formed between the abutting ring (281) and the inner wall of the vertical plate portion (241), and then stopping the rotation of the limiting column (28); S3, rotating the first bolt (27) to reduce the lateral distance between the first cushion block (24) and the second cushion block (25), so that the second cushion block (25) moves upward along the first inclined surface; when the height of the top surface of the second cushion block (25) reaches a desired value, stopping the rotation of the first bolt (27); S4, rotating the limiting column (28) until the abutment ring (281) is pressed against the inner wall of the vertical plate portion (241), thereby locking the lateral position of the second cushion block (25); S5, rotating the first nut (231) so that the first nut (231) is pressed against the top plate (26), thereby locking the longitudinal position of the second cushion block (25); The steps of the down-regulation method include: S1, rotating the first bolt (27) to increase the lateral distance between the first cushion block (24) and the second cushion block (25), so that the second cushion block (25) moves downward along the first inclined surface under the action of its own weight; when the height of the top surface of the second cushion block (25) reaches a desired value, stopping rotating the first bolt (27); S2, rotating the limiting column (28) until the abutment ring (281) is pressed against the inner wall of the vertical plate portion (241), thereby locking the lateral position of the second cushion block (25); S3. Rotate the first nut (231) so that the first nut (231) is pressed against the top plate (26), thereby locking the longitudinal position of the second cushion block (25).

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