An embedded medium and low speed maglev train induction rail installation auxiliary device

Abstract

The present invention relates to the technical field of railway construction, and specifically discloses an embedded medium and low speed maglev train induction rail installation auxiliary device, comprising a trolley chassis and a sliding platform, wherein the sliding platform is slidably arranged on the top of the trolley chassis; the sliding platform comprises a platform bottom plate, and lifting mechanisms are symmetrically arranged on both sides of the platform bottom plate, and the lifting mechanism comprises a fixed seat plate, a lifting seat plate and a screw rod, a screw rod is arranged on the fixed seat plate, and the two ends of the screw rod are symmetrically arranged with positive screw wedge blocks and reverse screw wedge blocks; the lifting seat plate is arranged on the top of the fixed seat plate, and two fixed wedge blocks are symmetrically arranged at the bottom of the lifting seat plate. The advantages of the present invention are that it has a simple structure, can achieve the purpose of carrying and lifting the induction rail to the installation station, greatly reduce the waste of manpower, easy to operate, and conducive to improving the installation efficiency of the induction rail.

Description

Technical Field

[0001] The invention relates to the technical field of railway construction, in particular to an embedded medium- and low-speed maglev train induction rail installation auxiliary device. Background Art

[0002] The embedded medium and low speed maglev train floats above the track by electromagnetic attraction. There is an electromagnet at the bottom of the train. When powered on, the electromagnet generates magnetic force to attract the induction rail, sucking the train upwards and keeping the electromagnetic attraction balanced with the gravity of the train, so that the train can float stably above the track. Figure 1 As shown in the schematic diagram of the induction rail installation, the base of the embedded medium and low speed maglev train is only 1220 mm high, and the space between the power rail and the induction rail is only 525 mm; a single induction rail weighs 200 kg, is 2000 mm long, 360 mm wide, and is fixed with 4 bolts.

[0003] When installing the induction rail, the induction rail needs to be lifted under the upper flange of the track beam, and the induction rail also needs to be moved longitudinally, transversely, and vertically to align the bolt installation holes for easy bolt tightening. A single induction rail weighs 200kg, which is not convenient for manual assembly of the induction rail in a small space.

[0004] According to usage requirements, about 1,000 induction rails need to be installed for every kilometer of maglev track beam, and a maglev line is generally tens of kilometers long. Therefore, it is necessary to design an auxiliary installation device for embedded medium and low-speed maglev train induction rails to reduce manpower and material resources. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an embedded medium and low speed maglev train induction rail installation auxiliary device, which has a simple structure and can achieve the purpose of carrying and lifting the induction rail to the installation station, greatly reducing the waste of manpower, is simple to operate, and is conducive to improving the installation efficiency of the induction rail.

[0006] The object of the present invention is achieved by the following technical solutions: an embedded medium and low speed maglev train induction rail installation auxiliary device, comprising a trolley frame and a sliding platform, wherein the sliding platform is slidably arranged on the top of the trolley frame;

[0007] The sliding platform comprises a platform bottom plate, and lifting mechanisms are symmetrically arranged on both sides of the platform bottom plate. The lifting mechanisms comprise a fixed seat plate, a lifting seat plate and a screw rod. A screw rod is arranged on the fixed seat plate, and both ends of the screw rod are rotatably connected with the fixed seat plate. A positive thread wedge block and a negative thread wedge block are symmetrically arranged at both ends of the screw rod, and the positive thread wedge block and the negative thread wedge block are respectively threadedly connected with the screw rod, and the threads at both ends of the screw rod have opposite rotation directions;

[0008] The lifting seat plate is arranged on the top of the fixed seat plate, and a cavity for accommodating the screw rod and the positive wire wedge block and the reverse wire wedge block is formed between the lifting seat plate and the fixed seat plate. Two fixed wedge blocks are symmetrically arranged on the bottom of the lifting seat plate, one of the two fixed wedge blocks cooperates with the positive wire wedge block, and the other cooperates with the reverse wire wedge block.

[0009] Specifically, both ends of the screw rod are rotatably connected to the fixed seat plate through bearings, and both ends of the screw rod penetrate the fixed seat plate and extend to the outside thereof.

[0010] Specifically, adjusting nuts are fixedly provided at both ends of the screw rod for adjusting the rotation of the screw rod.

[0011] Specifically, the bottoms of the positive wire wedge block and the negative wire wedge block are both in contact with the top of the fixed seat plate.

[0012] Specifically, a polyurethane pad is provided on the top of the lifting seat plate, and the polyurethane pad is fixed to the top of the lifting seat plate by bolts.

[0013] Specifically, the fixed wedge block is fixed to the bottom of the lifting seat plate by bolts.

[0014] Specifically, positioning guide holes are arranged at both ends of the lifting seat plate, threaded holes are arranged on the fixed seat plate, positioning guide bolts are arranged in the positioning guide holes, and one end of the positioning guide bolts is threadedly connected with the threaded holes.

[0015] Specifically, the trolley underframe is a rectangular frame, a linear guide rail is arranged on one side of the top of the trolley underframe, the bottom of one side of the platform base plate is slidably connected to the linear guide rail, and a first caster is arranged on the bottom of the other side of the platform base plate, and the first caster is placed on the top of the other side of the trolley underframe and is in rotational contact with it.

[0016] Specifically, a positioning wheel is arranged on one side of the bottom of the trolley chassis, and a second caster is arranged on the other side.

[0017] Specifically, the positioning wheel is a guide wheel.

[0018] The present invention has the following advantages: by setting a screw rod with opposite thread rotation directions at both ends, and cooperating with the threaded connection of the positive thread wedge block and the reverse thread wedge block, the positive thread wedge block and the reverse thread wedge block can be driven to move by adjusting the rotation of the screw rod; when the screw rod drives the positive thread wedge block and the reverse thread wedge block to move toward each other, the fixed wedge block and the lifting seat plate will be driven to rise, thereby driving the induction rail on the sliding platform to rise to the installation position for installation; when the screw rod drives the positive thread wedge block and the reverse thread wedge block to move in opposite directions, the fixed wedge block and the lifting seat plate will be driven to descend, which is convenient for the installation of the next induction rail; the structure is simple, and the labor cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the installation of the induction rail;

[0020] Figure 2 It is a structural schematic diagram of the present invention;

[0021] Figure 3 It is a schematic diagram of the structure of the trolley chassis of the present invention;

[0022] Figure 4 It is a schematic diagram of the matching structure of the sliding platform and the linear guide rail of the present invention;

[0023] Figure 5 It is a cross-sectional structural schematic diagram of the lifting mechanism of the present invention;

[0024] Figure 6 It is a schematic diagram of the auxiliary device of the present invention in use state;

[0025] In the figure: 1-trolley chassis, 2-sliding platform, 3-lifting mechanism, 4-rectangular frame, 5-second caster, 6-positioning wheel, 7-platform bottom plate, 8-linear guide rail, 9-fixed seat plate, 10-screw, 11-positive thread wedge block, 12-negative thread wedge block, 13-adjusting nut, 14-positioning guide bolt, 15-fixed wedge block, 16-lifting seat plate, 17-polyurethane pad, 18-first caster, 19-induction rail, 20-conductive rail. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0027] like Figures 1 to 6 As shown, an embedded medium- and low-speed maglev train induction rail installation auxiliary device includes a trolley frame 1 and a sliding platform 2. The trolley frame 1 is spliced ​​with rectangular tubes. To ensure the manufacturing accuracy, the mounting holes and the mounting surfaces are processed after welding. The sliding platform 2 is slidably set on the top of the trolley frame 1; when in use, the trolley frame 1 is placed on the laid track for longitudinal movement, and the sliding platform 2 is slidably set on the top of the trolley frame 1. When in use, the sliding platform 2 drives the carried induction rail 19 to move horizontally, so that the induction rail 19 can be transported to the installation station, which is convenient for installing the induction rail 19.

[0028] The sliding platform 2 includes a platform bottom plate 7, which adopts a lightweight design and is bent on both sides to improve the bearing capacity of the platform bottom plate 7. The lifting mechanism 3 is symmetrically arranged on both sides of the platform bottom plate 7. The lifting mechanism 3 includes a fixed seat plate 9, a lifting seat plate 16 and a screw rod 10. The fixed seat plate 9 is installed on the platform bottom plate 7 by screws. A screw rod 10 is arranged on the fixed seat plate 9. Both ends of the screw rod 10 are rotatably connected with the fixed seat plate 9. A groove is arranged in the middle of the fixed seat plate 9 of this embodiment. Both ends of the screw rod 10 are rotatably connected with the two ends of the groove through bearings, and positive wire and negative wire are respectively arranged at both ends of the screw rod. The positive wire wedge block 11 is aligned with the positive wire of the screw rod 10. The ends are threadedly connected, and the reverse wire wedge block 12 is threadedly connected to the reverse wire end of the screw rod 10. The positive wire wedge block 11 and the reverse wire wedge block 12 are symmetrically arranged at the two ends of the screw rod. When in use, the positive wire wedge block 11 and the reverse wire wedge block 12 can be moved in opposite or opposite directions by rotating the screw rod. The positive wire wedge block 11 and the reverse wire wedge block 12 are respectively threadedly connected to the screw rod 10, and the threads at both ends of the screw rod 10 have opposite rotation directions; when the screw rod 10 drives the positive wire wedge block 11 and the reverse wire wedge block 12 to move toward each other, it will drive the fixed wedge block 15 and the lifting seat plate 16 to rise, and when the screw rod 10 drives the positive wire wedge block 11 and the reverse wire wedge block 12 to move in opposite directions, it will drive the fixed wedge block 15 and the lifting seat plate 16 to fall.

[0029] The lifting seat plate 16 is arranged on the top of the fixed seat plate 9, and a cavity for accommodating the screw rod 10 and the positive wire wedge block 11 and the reverse wire wedge block 12 is formed between the lifting seat plate 16 and the fixed seat plate 9. Two fixed wedge blocks 15 are symmetrically arranged at the bottom of the lifting seat plate 16. One of the two fixed wedge blocks 15 cooperates with the positive wire wedge block 11, and the other cooperates with the reverse wire wedge block 12, wherein the top surfaces of the positive wire wedge block 11 and the reverse wire wedge block 12 are inclined surfaces, and the bottom surface of the fixed wedge block 15 is an inclined surface. The fixed wedge block 15 cooperates with the positive wire wedge block 11 and the reverse wire wedge block 12, so that when the screw rod rotates, it can bring The moving positive wire wedge block 11 and the reverse wire wedge block 12 move in opposite directions. Since the fixed wedge block 15 is fixed to the bottom of the lifting seat plate 16, when the positive wire wedge block 11 and the reverse wire wedge block 12 move driven by the screw rod, the fixed wedge block 15 will produce relative motion with the positive wire wedge block 11 and the reverse wire wedge block 12. Due to the contact surface inclined surface, the fixed wedge block 15 can be driven to rise or fall. When rising, it is due to the force of the positive wire wedge block 11 and the reverse wire wedge block 12, and when falling, the lifting seat plate 16 is lowered due to the interaction between the lifting seat plate 16 and the positive wire wedge block 11 and the reverse wire wedge block 12.

[0030] Furthermore, both ends of the screw rod 10 are rotatably connected to the fixed seat plate 9 through bearings, and both ends of the screw rod 10 pass through the fixed seat plate 9 and extend to the outside thereof. Both ends of the screw rod 10 are fixedly provided with adjusting nuts 13 for adjusting the rotation of the screw rod 10, wherein the adjusting nut 13 is hinged on the screw rod 10 through a pin shaft, and the adjusting nut 13 can limit the screw rod 10 to the left and right. At the same time, when the adjusting nut 13 is rotated, the screw rod 10 can be driven to rotate synchronously. It should be noted that the components at both ends of the screw rod 10 for adjusting the rotation of the screw rod 10 may not be the adjusting nut 13, but may be other components that can achieve the rotation of the screw rod, and are not limited to nuts.

[0031] Furthermore, the bottoms of the positive wire wedge block 11 and the negative wire wedge block 12 are in contact with the top of the fixed seat plate 9 .

[0032] Furthermore, a polyurethane pad 17 is provided on the top of the lifting seat plate 16 , and the polyurethane pad 17 is fixed to the top of the lifting seat plate 16 by bolts. The polyurethane pad 17 is installed on the lifting seat plate 16 to protect the placed induction rail 19 .

[0033] Furthermore, the fixed wedge block 15 is fixed to the bottom of the lifting seat plate 16 by bolts.

[0034] Further, positioning guide holes are provided at both ends of the lifting seat plate 16, and threaded holes are provided on the fixed seat plate 9. Positioning guide bolts 14 are provided in the positioning guide holes, and one end of the positioning guide bolts 14 is threadedly connected to the threaded holes. Since the lifting seat plate 16 needs to be lifted or lowered, the connection between the lifting seat plate 16 and the fixed seat plate 9 is not a rigid connection, and the two need to be relatively displaced up and down. In order to ensure the accuracy of the displacement, a guiding structure is provided, wherein the length of the portion of the positioning guide bolt 14 that is not threadedly connected to the fixed seat plate 9 is greater than the length of the positioning guide bolt 14 of the lifting seat plate 16. The lifting seat plate 16 is oriented toward the hole, so that the lifting seat plate 16 can move up and down along the positioning guide bolt 14, playing a positioning and guiding role. At the same time, the limit position of the displacement of the lifting seat plate 16 can also be adjusted. Since the length of the positioning guide bolt 14 is fixed, when adjusting the threaded connection length of the positioning guide bolt 14 and the threaded hole, the length of the part of the positioning guide bolt 14 that is not threadedly connected to the fixed seat plate 9 can be adjusted. In this way, the limit position of the lifting seat plate 16 moving up and down along the positioning guide bolt 14 is achieved. During use, the lifting height of the sensing rail 19 can be adjusted conveniently, which is convenient for use.

[0035] Furthermore, the trolley chassis 1 is a rectangular frame 4, and a linear guide 8 is arranged on one side of the top of the trolley chassis 1, and at least two groups of linear bearing sliders are arranged at the bottom of the platform base plate 7 to cooperate with the linear guide rail 8, which can greatly reduce the sliding resistance and can slide easily and freely on the sliding guide rail while ensuring the rated load. The bottom of one side of the platform base plate 7 is slidably connected with the linear guide rail 8, and the bottom of the other side of the platform base plate 7 is provided with a first caster 18, which is placed on the top of the other side of the trolley chassis 1 and is in rotational contact with it, wherein the linear guide rail 8 plays a role of positioning and guiding, and at least two groups of first casters 18 are arranged. When in use, the first caster 18 is in sliding contact with the top of the trolley chassis 1, that is, the first caster 18 moves on the frame of the trolley chassis 1, and a manual brake is also provided on the first caster 18 to play a role of lateral positioning.

[0036] Furthermore, a positioning wheel 6 is provided on one side of the bottom of the trolley chassis 1, and a second caster 5 is provided on the other side. In order to reduce the longitudinal walking resistance of the trolley chassis 1, the second caster 5 and the positioning wheel 6 are both installed with lubrication-free rolling bearings to reduce the labor intensity; the front end of the trolley chassis 1 is two positioning wheels 6 made of nylon material, and the positioning wheels 6 are of a U-shaped structure with bosses on both sides; the trolley chassis 1 is in use when it walks on the conductive rail 20, so in order to ensure that the trolley chassis 1 does not derail when walking on the conductive rail 20, a U-shaped guide wheel is used to match the conductive rail 20, and the concave surface of the positioning wheel 6 contacts the power supply rail to play a bearing role, and the two sides of the positioning wheel 6 The boss is used for lateral positioning; the second caster 5 is a high-load polyurethane directional caster, and the load of a single polyurethane directional caster reaches 450kg; the high-load polyurethane directional caster is equipped with a brake device, and when the trolley chassis 1 slides to the specified position required for assembly, the brake can be manually applied, and the brake locks the polyurethane directional wheel to fix the directional wheel and prevent it from sliding, so as to achieve the purpose of longitudinal positioning of the 1-track trolley; since the power supply rail is used for power transmission of the maglev train, the trolley chassis 1 cannot cause any damage to the power supply rail when walking on the power supply rail, so the rollers of the trolley chassis 1 of the present invention that contact the power supply rail are required to be made of soft materials.

[0037] The working process of the present invention is as follows: place the trolley chassis 1 on the power supply rail, the positioning wheel 6 of the trolley chassis 1 is stuck on the power supply rail, push the sliding platform 2 to the middle of the trolley chassis 1, and then place two sets of induction rails 19 on the sliding platform 2; move the sliding platform 2 to one side, adjust the lifting mechanism 3, move the induction rail 19 installation auxiliary device forward, backward, left and right, align the induction rail 19 with the installation hole, and then assemble the induction rail 19 fixing bolts to complete the installation of the induction rail 19 on this side; move the sliding platform 2 to the other ... 19 is aligned with the mounting hole, and then the fixing bolts of the induction rail 19 are assembled to complete the installation of the induction rail 19 on this side. The positioning wheel 6 and the guiding effect of the power supply rail are used to push the induction rail 19 installation auxiliary device to move longitudinally along the power supply rail to the next station to install the next set of induction rails 19. The induction rail 19 installation auxiliary device of the present invention has a simple structure, low manufacturing cost, and convenient operation and use. The front and rear left and right and up and down position adjustment of the induction rail 19 is realized through a simple mechanical structure, which greatly reduces the difficulty of assembling the induction rail 19; originally, the installation of each set of induction rails 19 required 5 people, and it took an average of 15 minutes to complete. After adopting the induction rail 19 installation auxiliary device, only 2 people are needed to complete the installation of each set of induction rails 19. While greatly reducing the labor intensity, it also greatly improves the installation efficiency. Now, the installation of each set of induction rails 19 only takes an average of 5 minutes to complete.

[0038] The above is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above-mentioned technical content without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, any changes, modifications, equivalent changes and modifications made to the above embodiments based on the technology of the present invention without departing from the content of the technical solution of the present invention belong to the protection scope of the present technical solution.

Claims

1. An embedded medium and low speed maglev train induction rail installation auxiliary device, characterized in that: It comprises a trolley chassis (1) and a sliding platform (2), wherein the sliding platform (2) is slidably arranged on the top of the trolley chassis (1); The sliding platform (2) comprises a platform bottom plate (7), and lifting mechanisms (3) are symmetrically arranged on both sides of the platform bottom plate (7). The lifting mechanisms (3) comprise a fixed seat plate (9), a lifting seat plate (16) and a screw rod (10). A screw rod (10) is arranged on the fixed seat plate (9), and both ends of the screw rod (10) are rotatably connected to the fixed seat plate (9). Positive thread wedge blocks (11) and negative thread wedge blocks (12) are symmetrically arranged at both ends of the screw rod (10), and the positive thread wedge blocks (11) and negative thread wedge blocks (12) are respectively threadedly connected to the screw rod (10), and the threads at both ends of the screw rod (10) have opposite rotation directions. The lifting seat plate (16) is arranged on the top of the fixed seat plate (9), and a cavity for accommodating the screw rod (10) and the positive wire wedge block (11) and the negative wire wedge block (12) is formed between the lifting seat plate (16) and the fixed seat plate (9). Two fixed wedge blocks (15) are symmetrically arranged at the bottom of the lifting seat plate (16), one of the two fixed wedge blocks (15) cooperates with the positive wire wedge block (11), and the other cooperates with the negative wire wedge block (12); A positioning wheel (6) is provided on one side of the bottom of the trolley chassis (1), and a second caster (5) is provided on the other side; The lifting seat plate (16) is provided with positioning guide holes at both ends, the fixed seat plate (9) is provided with a threaded hole, a positioning guide bolt (14) is provided in the positioning guide hole, and one end of the positioning guide bolt (14) is threadedly connected to the threaded hole; The operation of the installation auxiliary device includes: The trolley frame (1) is placed on the power rail, the positioning wheel (6) of the trolley frame (1) is clamped on the power rail, and the sliding platform (2) is pushed to the middle of the trolley frame (1); Place two sets of sensor rails (19) on the sliding platform (2); move the sliding platform (2) to one side, adjust the lifting mechanism (3) to move the sensor rail (19) installation auxiliary device forward, backward, left and right, so that the sensor rail (19) is aligned with the installation hole, and then assemble the sensor rail (19) fixing bolts to complete the installation of the sensor rail (19) on this side; Move the sliding platform (2) to the other side, adjust the lifting mechanism (3), move the induction rail (19) installation auxiliary device forward, backward, left and right, align the induction rail (19) with the installation hole, and then assemble the induction rail (19) fixing bolts to complete the installation of the induction rail (19) on this side. Use the guiding effect of the positioning wheel (6) and the power supply rail to push the induction rail (19) installation auxiliary device to move longitudinally along the power supply rail to the next station, and install the next set of induction rails (19).

2. According to claim 1, an embedded medium and low speed maglev train induction rail installation auxiliary device is characterized in that: Both ends of the screw rod (10) penetrate the fixed seat plate (9) and extend to the outside thereof.

3. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 2 is characterized in that: Adjustment nuts (13) are fixedly provided at both ends of the screw rod (10) for adjusting the rotation of the screw rod (10).

4. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 1, characterized in that: The bottoms of the positive wire wedge block (11) and the negative wire wedge block (12) are both in contact with the top of the fixed seat plate (9).

5. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 1, characterized in that: A polyurethane pad (17) is provided on the top of the lifting seat plate (16), and the polyurethane pad (17) is fixed to the top of the lifting seat plate (16) by means of bolts.

6. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 1, characterized in that: The fixed wedge block (15) is fixed to the bottom of the lifting seat plate (16) by means of bolts.

7. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 1 is characterized in that: The trolley chassis (1) is a rectangular frame (4), a linear guide rail (8) is arranged on one side of the top of the trolley chassis (1), the bottom of one side of the platform base plate (7) is slidably connected to the linear guide rail (8), and the bottom of the other side of the platform base plate (7) is provided with a first caster (18), and the first caster (18) is placed on the top of the other side of the trolley chassis (1) and is in rotational contact with it.

8. The embedded medium and low speed maglev train induction rail installation auxiliary device according to claim 1, characterized in that: The positioning wheel (6) is a guide wheel.

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