A track beam hoisting device suitable for high-speed maglev

Abstract

The application discloses a track beam hoisting device suitable for high-speed maglev, and belongs to the technical field of high-speed maglev track construction, which realizes reliable running on a T-shaped beam of a high-speed maglev track through the corresponding arrangement of a vehicle body, a running mechanism, a hoisting main beam, a main beam sliding plate on the hoisting main beam and an electromagnetic hoisting clamp, and through the reciprocating translation of the main beam sliding plate along the longitudinal direction of the hoisting main beam and the reciprocating lifting of the hoisting main beam in the vertical direction, the reliable hoisting of the high-speed maglev track beam can be accurately realized. The track beam hoisting device suitable for high-speed maglev can reliably run on a T-shaped beam, realize magnetic attraction hoisting of the high-speed maglev track beam after reliable running, meet the construction of a beam body in a construction environment with limited operation space, simplify the construction operation process of the beam body, avoid the impact damage of related walls and equipment in the hoisting process, guarantee the accuracy and reliability of the beam body hoisting construction, and has good practical value and application prospect.

Description

Technical Field

[0001] This invention belongs to the field of high-speed maglev track construction technology, specifically relating to a track beam lifting device suitable for high-speed maglev. Background Technology

[0002] With the continuous development and accumulation of maglev technology in my country, the design and research of related maglev rail transit lines are increasing, and the requirements for related supporting technologies are also becoming higher. In the construction of high-speed maglev rail lines, the construction of the track beams is a crucial process.

[0003] During the construction of high-speed maglev track beams, large lifting mechanisms are typically required for construction assistance. However, due to the different track types, conventional track beam lifting devices are often unsuitable for lifting the T-beams of high-speed maglev tracks. Furthermore, track beam construction often involves tunnels and underground spaces. In these situations, limited working space makes it difficult for conventional lifting mechanisms to be set up beside the track and complete the lifting operations of maglev turnouts and beam structures, leading to difficulties in beam installation. Additionally, in these confined working environments, even if the lifting mechanism can enter the site, the extension and retraction height of the lifting equipment is limited due to the need to avoid collisions with surrounding walls and equipment, and to prevent encroachment, making the control process cumbersome.

[0004] Furthermore, the turnout beams of high-speed maglev tracks are typically large, nearly 80m in length, nearly 3m in width, and with a turnout distance of nearly 4m. The overall weight of the beam is substantial, making it difficult to lift using traditional hoisting equipment. Moreover, the installation precision requirements for high-speed maglev track beams are extremely high, necessitating precise clamping and positioning during installation, and ensuring millimeter-level installation accuracy, including clearance positioning accuracy and levering docking accuracy. This undoubtedly places even greater demands on the hoisting of the track beams, rendering existing equipment completely inadequate for practical applications. Summary of the Invention

[0005] In response to one or more of the above-mentioned defects or improvement needs of the existing technology, the present invention provides a track beam lifting device suitable for high-speed maglev, which can reliably travel on the long stator T-beam of high-speed maglev and complete the beam hoisting in the construction process of high-speed maglev track beam, assist in the alignment construction of high-speed maglev track beam, improve the efficiency and accuracy of high-speed maglev track beam construction, and shorten the construction period of track beam.

[0006] To achieve the above objectives, the present invention provides a track beam lifting device suitable for high-speed maglev trains, comprising a car body,

[0007] The bottom of the vehicle body is equipped with a running mechanism, which enables the vehicle body to travel reliably on the high-speed maglev track beam; and the vehicle body is equipped with a support mechanism that can be vertically reciprocated and raised, and a hoisting main beam is installed on the top of the support mechanism.

[0008] One end of the hoisting main beam is fixed to the support mechanism and can be vertically reciprocated under the drive of the support mechanism; and the other end of the hoisting main beam extends to the front of the vehicle body, and several main beam sliding plates are slidably provided on this side end.

[0009] The main beam sliding plate can reciprocate along its longitudinal direction on the hoisting main beam, and multiple hoisting ropes are connected to the main beam sliding plate. Electromagnetic hoisting clamps are provided at the bottom of the multiple hoisting ropes, so that the electromagnetic hoisting clamps can attract the top surface of the high-speed maglev track beam with electromagnetic attraction after being energized. Then, by the reciprocating translation of the main beam sliding plate on the hoisting main beam and the reciprocating lifting and lowering of the hoisting main beam on the support mechanism, the hoisting of the high-speed maglev track beam can be realized.

[0010] As a further improvement of the present invention, the running mechanism includes at least two running wheel pairs respectively disposed at the bottom of the front end of the vehicle body and the bottom of the rear end of the vehicle body;

[0011] The running wheelset includes a main support wheel located at both ends in the lateral direction and a secondary support wheel located in the middle of the running wheelset; the main support wheel is used to run on the skid plates on both sides of the top surface of the high-speed maglev track beam, and the secondary support wheel is used to run on the upper top plate in the middle of the top surface of the high-speed maglev track beam.

[0012] As a further improvement of the present invention, the running wheelset is mounted on the bottom of the vehicle body through a wheelset suspension mechanism, and the running wheelset is configured as a dual-wheel structure, which includes two running wheelset units disposed on both longitudinal sides of the wheelset suspension mechanism.

[0013] As a further improvement of the present invention, the vehicle body is provided with a plurality of replaceable counterweights for balancing the weight of the main lifting beam and the track beam that is attached to the electromagnetic lifting fixture.

[0014] As a further improvement of the present invention, the support mechanism includes at least two sets of support telescopic arms arranged longitudinally at intervals, and one end of the hoisting main beam away from the main beam sliding plate is connected to the top of the at least two sets of support telescopic arms.

[0015] As a further improvement of the present invention, the supporting telescopic arm is a multi-stage hydraulic cylinder.

[0016] As a further improvement of the present invention, the main beam sliding plates are arranged in multiple spaced intervals, and the multiple main beam sliding plates are simultaneously connected to the electromagnetic hoisting clamp by multiple hoisting ropes.

[0017] As a further improvement of the present invention, side bending plates are respectively provided on both sides of the vehicle body;

[0018] The side bending plate is connected to the side of the vehicle body through a connecting part, and one of its end faces is directly opposite the maglev side plate. Multiple guide mechanisms are provided at intervals on the end face of the side plate, so that when the vehicle body moves, the guide mechanism can abut against the maglev side plate and guide the movement of the vehicle body.

[0019] As a further improvement of the present invention, the guiding mechanism includes at least two sets of guide wheels disposed at the front and rear of the side bending plate; and at least one set of the guide wheels is configured as a double wheel structure, the double wheel structure including two guide wheels arranged vertically side by side.

[0020] As a further improvement of the present invention, the side bending plate is detachably connected to the side of the vehicle body or can be bent to avoid interference between the side bending plate and the road when the vehicle body is traveling on ordinary roads.

[0021] The aforementioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0022] In summary, the beneficial effects of the above-described technical solutions conceived by this invention compared with the prior art include:

[0023] (1) The track beam lifting equipment of the present invention, applicable to high-speed maglev, can reliably travel on the T-beam of the high-speed maglev track by means of the corresponding arrangement of the car body, the traveling mechanism, the lifting main beam, and the main beam sliding plate and electromagnetic lifting clamp on the lifting main beam. Then, by the reciprocating translation of the main beam sliding plate along the longitudinal direction of the lifting main beam and the reciprocating lifting of the lifting main beam in the vertical direction, the reliable lifting of the high-speed maglev track beam can be accurately realized, ensuring the efficiency and accuracy of the high-speed maglev track beam lifting, realizing the reliable lifting of the track beam when the working space is limited, and ensuring the reliability and accuracy of the track beam lifting.

[0024] (2) The track beam lifting device of the present invention, applicable to high-speed maglev, through the corresponding arrangement of the main support wheel and the auxiliary support wheel in the running mechanism, enables the main support wheel to support the sliding skid plates on both sides of the track beam, and the auxiliary support wheel to accurately support the upper top plate in the middle of the track beam. This ensures stable support of the vehicle body while increasing the contact area between the running mechanism and the running surface of the track beam, avoiding crushing of the beam surface due to concentrated force. Correspondingly, by setting the running wheelset to a double-wheel structure, the contact area between the running mechanism and the beam surface can be further increased, improving the stability and reliability of the running mechanism.

[0025] (3) The track beam lifting equipment of the present invention for high-speed maglev is provided by setting side bending plates on both sides of the vehicle body and setting a guide mechanism on the side bending plates corresponding to the maglev side plates. When the vehicle body travels on the high-speed maglev track beam, it can be accurately guided by the guide mechanism, ensuring the accurate travel of the lifting equipment on the high-speed maglev track T-beam, ensuring the accuracy of track beam hoisting, and improving the efficiency of track beam construction. At the same time, by setting the side bending plates to be detachable or bendable, the vehicle body can be further enabled to travel on ordinary roads, avoiding interference between the side bending plates and the road.

[0026] (4) The track beam lifting equipment of the present invention is suitable for high-speed maglev. It has a simple structure and is easy to control. It can reliably travel on the T-beam of the high-speed maglev track and magnetically lift the high-speed maglev track beam after reliable travel. It meets the construction requirements of the beam in the construction environment with limited working space, simplifies the construction process of the beam, avoids impact damage to related walls and equipment during the lifting process, and ensures the accuracy and reliability of the beam lifting construction. It has good practical value and application prospects. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of a track beam lifting device applicable to high-speed maglev in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the flatbed vehicle structure of the track beam lifting equipment applicable to high-speed maglev in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of a track beam lifting device applicable to high-speed maglev in an embodiment of the present invention;

[0030] Figure 4 This is a structural side view of the track beam lifting equipment in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the electromagnetic lifting clamp of the track beam lifting equipment in this embodiment of the invention;

[0032] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically:

[0033] 1. Electromagnetic hoisting clamp; 2. Main beam sliding plate; 3. Hoisting rope; 4. Hoisting main beam; 5. Operator's cab; 6. Support telescopic boom; 7. Counterweight; 8. Flatbed trolley; 9. Support auxiliary wheel; 10. Support main wheel; 11. Guide wheel; 12. Maglev side plate; 13. Side bending plate; 14. Wheelset suspension mechanism; 15. Connecting part; 16. Electromagnetic unit; 17. Hoisting rope joint. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0035] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0037] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0038] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0039] Example:

[0040] Please see Figures 1-5 In a preferred embodiment of the present invention, the track beam lifting device for high-speed maglev includes a car body. A traveling mechanism is located at the bottom of the car body, and a support structure is located at the top. A main lifting beam 4 is mounted on the support structure, and an electromagnetic lifting clamp 1 is connected to the end of the main lifting beam 4 via multiple lifting ropes 3. The traveling mechanism allows the track beam lifting device to travel on the T-beam, and the electromagnetic lifting clamp 1 attracts the top surface of the track beam, thus completing the lifting of the high-speed maglev track beam.

[0041] Specifically, the vehicle body in the preferred embodiment is as follows: Figure 2 As shown, it includes a supporting base plate, and a traveling mechanism is provided below the supporting base plate. In a preferred embodiment, the traveling mechanism includes two pairs of traveling wheels that are arranged longitudinally at intervals. Each pair of traveling wheels is respectively disposed at the bottom of the supporting base plate through a wheel pair suspension mechanism 14.

[0042] More specifically, due to the large self-weight and load capacity of the track beam lifting equipment, in order to avoid excessive compression of the track beam by the traveling mechanism, which could cause deformation and damage to the traveling surface of the track beam, the preferred embodiment has a corresponding design for the traveling mechanism to maximize the contact area between the traveling mechanism and the top surface of the track beam, so as to avoid local stress concentration.

[0043] In actual installation, because the connecting plates on the surface of the high-speed maglev track beam cannot bear force, and the running wheels cannot act on the area where the stator assembly is located, the running mechanism can only act on the skids and the upper top plate on the top surface of the track beam. The skids are located on both sides of the top surface of the track beam, and the upper top plate is located in the middle of the track beam, with the stator assembly positioned between each skid and the upper top plate. Therefore, in the preferred embodiment, the running mechanism uses a combination of supporting main wheels and supporting auxiliary wheels.

[0044] like Figure 2 , Figure 3 As shown, the main support wheels 10 are two located at both ends of the wheelset, respectively acting on the top surface of the skid plate for support and travel; the auxiliary support wheels 9 are located in the middle of the wheelset, used for support and travel on the top surface of the upper top plate. Depending on the width of the upper top plate, the auxiliary support wheels 9 can be arranged in two or more rows to increase the contact area between the traveling mechanism and the top surface of the track beam, and to evenly distribute the force transmitted from the vehicle body to the track beam.

[0045] More specifically, to further distribute the traveling forces of the running wheelsets, in a preferred embodiment, the running wheelsets at the front end and / or rear end of the vehicle body are configured with a dual-wheel structure, such as... Figure 2As shown in the diagram. At this time, the longitudinal sides of the wheelset suspension mechanism 14 are respectively configured as traveling wheelsets, forming a traveling unit consisting of four supporting main wheels 10 and two supporting auxiliary wheels 9. Correspondingly, traveling units are respectively provided at the bottom of the front end and the bottom of the rear end of the support base plate. Furthermore, depending on the actual setup requirements, traveling wheelsets or traveling units can also be correspondingly provided in the middle of the support base plate; moreover, in the preferred embodiment, the traveling wheels are further preferably rubber-tired structures.

[0046] Furthermore, side bending plates 13 are respectively provided on both sides of the supporting base plate in the lateral direction. The two side bending plates 13 are respectively connected to both sides of the supporting base plate through connecting parts 15, for corresponding arrangement of the guide mechanism. In the preferred embodiment, the guide mechanism includes guide wheels 11 corresponding to the magnetic levitation side plates 12. The guide wheels 11 are preferably multiple ones arranged longitudinally at intervals, for example... Figure 4 The two side bending plates shown are located at the front and rear ends of the side bending plate 13, respectively, and are used for guiding the movement of the front and rear of the vehicle body.

[0047] It is understandable that, in actual installation, guide wheels 11 can also be correspondingly installed in the middle of the side bending plate 13. The guide wheels 11 travel by abutting against the surface of the magnetic levitation side plate 12, ensuring the accuracy and reliability of the vehicle's movement. To ensure the stability of the vehicle's guiding movement, in the preferred embodiment, the guide wheels 11 at each longitudinal position are respectively configured as a double-wheel structure, i.e., as shown... Figure 4 The two are arranged vertically and horizontally as shown. Meanwhile, to enable the vehicle to travel on conventional roads, in the preferred embodiment, the side bending plate 13 is configured to be detachable or bendable, for example, the connecting part 15 is configured as a rotating shaft or a detachable connector.

[0048] Furthermore, such as Figure 3 As shown in the preferred embodiment, at least one operating room 5 is provided on the top of the support base plate for performing corresponding operations during the hoisting of the track beam. Simultaneously, a support mechanism is correspondingly provided on the support base plate, for example... Figure 3 , Figure 4 The support telescopic arm 6 shown in the preferred embodiment is arranged in two sets at longitudinal intervals, each set forming a "gate-shaped" lifting mechanism to reliably support the main beam 4 being hoisted. Preferably, the support telescopic arm 6 in the preferred embodiment is a multi-stage hydraulic cylinder, for example... Figure 4 The three-stage hydraulic cylinder shown.

[0049] Correspondingly, one end (tail end) of the main lifting beam 4 is connected to two sets of support telescopic booms 6, and can be stably supported on the top of the vehicle body by the two support telescopic booms 6. Meanwhile, since the front end of the main lifting beam 4 needs to be used for lifting and feeding the track beam, its front end extends longitudinally beyond the front of the vehicle body, such as... Figure 4 As shown in the image.

[0050] In a preferred embodiment, the main lifting beam 4 is preferably a reinforced concrete beam or a steel beam, which has a certain self-weight. Therefore, in order to ensure the stability of the vehicle body structure after the main lifting beam 4 is installed, multiple counterweights 7 are provided on the vehicle support base plate, such as... Figure 1 As shown, this ensures that the weight of the vehicle body is kept in balance at the front and rear, preventing the vehicle body from tilting forward or overturning. Preferably, the number of counterweights 7 can be increased or decreased according to actual needs, and the counterweights 7 are preferably laid flat on the support base plate to avoid the vehicle's center of gravity being too high due to the placement of the counterweights 7, further ensuring the stability of the lifting equipment during operation and travel.

[0051] Furthermore, at least two main beam sliding plates 2 are provided at the front end of the main beam 4. These plates slide and match the front end of the main beam 4, and can slide back and forth along the longitudinal direction of the main beam 4 to realize the forward and backward lifting movement of the track beam. Combined with the corresponding lifting mechanism, the track beam can be lifted and installed within a limited space. To ensure accurate clamping of the track beam, an electromagnetic lifting clamp 1 is provided below the main beam sliding plate 2, which is connected to the lower part of the main beam sliding plate 2 by multiple lifting ropes 3.

[0052] By setting up multiple main beam sliding plates 2, the force application points of the lifting ropes 3 can be distributed to prevent the magnetic levitation beam from shaking during hoisting and movement, and to maintain the balance of the beam's center of gravity.

[0053] like Figure 5 As shown, the electromagnetic lifting clamp 1 in the preferred embodiment includes a plate-shaped body. Multiple rope connectors 17 are distributed on the top of the body for connecting the bottom of the lifting rope 3. Simultaneously, multiple electromagnetic units 16 are spaced apart at the bottom of the body, such as... Figure 5 The five shown are electromagnetic units 16. Through the corresponding configuration of these units, the top steel structure of the track beam can be attracted and held during the hoisting process, ensuring reliable hoisting of the track beam. In actual installation, to further guarantee reliability during hoisting, a mechanical anti-detachment structure is also provided on the electromagnetic hoisting clamp 1 to prevent the track beam from falling off during hoisting.

[0054] The track beam lifting equipment of this invention is applicable to high-speed maglev. It has a simple structure and is easy to control. It can reliably travel on the T-beam of the high-speed maglev track and then magnetically lift the high-speed maglev track beam after reliable travel. It meets the construction requirements of beam construction in construction environments with limited working space, simplifies the beam construction process, avoids impact damage to related walls and equipment during lifting, and ensures the accuracy and reliability of beam lifting construction. It has good practical value and application prospects.

[0055] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A track beam lifting device suitable for high-speed maglev trains, comprising a car body, characterized in that, The bottom of the vehicle body is equipped with a running mechanism, enabling the vehicle body to reliably travel on the high-speed maglev track beam. The running mechanism includes at least two pairs of wheels located at the bottom of the front and rear ends of the vehicle body. Each pair of wheels includes a main support wheel at each lateral end and a secondary support wheel in the middle. The main support wheels travel on skids on both sides of the top surface of the high-speed maglev track beam, and the secondary support wheels travel on the upper top plate in the middle of the top surface of the high-speed maglev track beam. Side bending plates are respectively provided on both sides of the vehicle body; the side bending plates are connected to the side of the vehicle body through connecting parts, and one end face of the side bending plate faces the maglev side plate. Multiple guide mechanisms are provided at intervals on the end face of the side bending plate, so that the guide mechanisms can abut against the maglev side plate and guide the movement of the vehicle body when the vehicle body is moving; the guide mechanism includes at least two sets of guide wheels disposed at the front and rear of the side bending plate, and at least one set of guide wheels is configured as a double wheel structure, which includes two guide wheels arranged vertically side by side; The vehicle body is equipped with a support mechanism that can be vertically reciprocated and raised, and a hoisting main beam is installed on the top of the support mechanism; One end of the hoisting main beam is fixed to the support mechanism and can be vertically reciprocated under the drive of the support mechanism; and the other end of the hoisting main beam extends to the front of the vehicle body, and a main beam sliding plate is slidably provided on this side end. The main beam sliding plate can reciprocate longitudinally on the hoisting main beam, and multiple lifting ropes are connected to the main beam sliding plate. Electromagnetic hoisting clamps are provided at the bottom of the multiple lifting ropes, so that the electromagnetic hoisting clamps can attract the top surface of the high-speed maglev track beam with electromagnetic attraction after being energized. The main beam sliding plate is arranged in multiple spaced intervals to distribute the force points of the lifting ropes, prevent the maglev beam from shaking during hoisting and movement, and maintain the center of gravity balance of the beam. The electromagnetic hoisting clamps are also equipped with a mechanical anti-detachment structure to prevent the track beam from falling off during hoisting. Then, by the reciprocating translation of the main beam sliding plate on the hoisting main beam and the reciprocating lifting and lowering of the hoisting main beam on the support mechanism, the hoisting of the high-speed maglev track beam can be realized. The side bending plate is detachably or bendably connected to the side of the vehicle body to avoid interference between the side bending plate and the road when the vehicle body travels on ordinary roads; the vehicle body is provided with multiple replaceable counterweights to balance the weight of the main lifting beam and the track beam that is lifted onto the electromagnetic lifting fixture.

2. The track beam lifting equipment suitable for high-speed maglev as described in claim 1, wherein, The running wheelset is mounted on the bottom of the vehicle body via a wheelset suspension mechanism, and the running wheelset is configured as a dual-wheel structure, comprising two running wheelset units located on the longitudinal sides of the wheelset suspension mechanism.

3. The track beam lifting equipment suitable for high-speed maglev as described in claim 1, wherein, The support mechanism includes at least two sets of support telescopic arms arranged longitudinally at intervals, and one end of the hoisting main beam away from the main beam sliding plate is connected to the top of the at least two sets of support telescopic arms.

4. The track beam lifting equipment suitable for high-speed maglev as described in claim 3, wherein, The supporting telescopic arm is a multi-stage hydraulic cylinder.

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