Double-line beam replacement equipment

Abstract

The present invention relates to the field of bridge replacement, and in particular to a double-track beam replacement device. It comprises a first single track and a second single track. Mobile trolleys are provided on the existing bridges on both sides of the hole position of the first single track to be replaced. A guide beam arranged along the longitudinal direction of the bridge is provided above the hole position of the first single track to be replaced. A pair of beam hoisting trolleys for hoisting and moving beam pieces are provided at the lower end of the guide beam. A transverse guide part is provided between the two ends of the guide beam and the corresponding mobile trolley. The guide beam can reciprocate between the first single track and the second single track along the transverse direction of the bridge through the transverse guide part. The second guide part is movably connected to the first guide part. A beam piece transfer unit is provided on the second single track. This scheme can realize the transverse movement of the guide beam on the double track, give full play to the transportation function of the second single track, thereby effectively reducing the time spent in the connection and beam feeding process, reducing the construction difficulty and improving the efficiency.

Description

Technical Field

[0001] The invention relates to the field of bridge frame replacement, and in particular to a double-line beam replacement device. Background Art

[0002] Due to their ancient design and long operation time, there are a large number of defective beam bridges in service on existing railways. Especially in recent years, due to the needs of train speed increase and heavy-load reconstruction, a large number of simply supported T-beams or steel plate beams with a span of 32m or less on existing lines need to be replaced urgently.

[0003] In the existing double-track related frame replacement scheme, flow construction is adopted, and the beam replacement equipment generally only carries out beam replacement construction on one of the single lines. However, during the bridge frame replacement process, the connection and beam feeding need to be carried out by lifting machinery in conjunction with the beam-carrying trolley, and the construction progress is slow.

[0004] Based on the above-mentioned difficulties, the present application provides a double-line beam changing device. Summary of the invention

[0005] The object of the present invention is to provide a double-track beam changing device to at least solve some of the technical problems mentioned in the background technology.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A double-track beam-changing equipment comprises a first single track and a second single track. Moving trolleys are provided on the existing bridges on both sides of the hole for frame replacement of the first single track. A guide beam arranged along the longitudinal direction of the bridge is provided above the hole for frame replacement of the first single track. A pair of beam-hoisting trolleys for hoisting and moving beam pieces are provided at the lower end of the guide beam. Transverse guide parts are provided between the two ends of the guide beam and the corresponding moving trolleys. The transverse guide parts comprise a first guide part located above the first single track and a second guide part located above the second single track. The guide beam can reciprocate between the first single track and the second single track along the transverse direction of the bridge through the transverse guide parts. The second guide part is movably connected to the first guide part to realize the avoidance of the second guide part on the second single track. A beam piece transfer unit is provided on the second single track.

[0008] Optionally, a support portion for ensuring the stability of the transverse guide portion is provided between the transverse guide portion and the bridge deck.

[0009] Optionally, the first guide portion is disposed on a corresponding moving trolley, and the second guide portion is hinged to the first guide portion.

[0010] Optionally, the second guide portion may be flipped upward relative to the first guide portion.

[0011] Optionally, the support portion includes a plurality of legs arranged at the bottom ends of the first guide portion and the second guide portion.

[0012] Optionally, the support portion further includes a sleeper beam disposed between the sleepers, and the support legs are detachably connected to the first guide portion and the second guide portion.

[0013] Optionally, a walking portion is provided at a position of the bottom end of the guide beam corresponding to the lateral guide portion, and both the first guide portion and the second guide portion include tracks for movement of the walking portion.

[0014] Optionally, a limiting portion is provided on the track to prevent the walking portion from derailing.

[0015] Optionally, a bracket is provided between the walking part and the guide beam.

[0016] Optionally, the beam transfer unit includes a rail vehicle, an old beam transport vehicle and a new beam transport vehicle which are arranged in sequence.

[0017] Beneficial effect: This scheme can realize the lateral movement of the guide beam on the double line by setting a lateral guide part with an avoidance function, giving full play to the transportation function of the second single line, thereby effectively avoiding the need for the connection and beam feeding to be carried out by lifting machinery in conjunction with the beam-carrying trolley in the traditional bridge replacement process, thereby reducing the construction difficulty and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the beam changing device in the present invention.

[0019] Figure 2 It is a schematic diagram of the equipment entering the field in the present invention.

[0020] Figure 3 It is a schematic diagram of the second guide part being reset after the equipment enters the site in the present invention.

[0021] Figure 4 It is a schematic diagram of lifting the first old beam piece in the present invention.

[0022] Figure 5 It is a schematic diagram of the first old beam piece being dropped onto the beam piece transfer unit in the present invention.

[0023] Figure 6 It is a schematic diagram of the guide beam being laterally moved and reset to the first single line in the present invention.

[0024] Figure 7 It is a schematic diagram of the second guide portion avoiding the beam transfer unit in the present invention.

[0025] Figure 8 It is a structural schematic diagram of the beam piece transfer unit in the present invention.

[0026] Reference numerals:

[0027] 101. First single track; 102. Second single track; 200. Moving trolley; 301. Guide beam; 302. Beam hoisting trolley; 303. Bracket; 401. First guide part; 402. Second guide part; 500. Beam transfer unit; 501. Rail vehicle; 502. Old beam transport vehicle; 503. New beam transport vehicle; 504. Old track transport vehicle; 505. Old ballast transport vehicle; 506. New ballast transport vehicle; 507. New track transport vehicle; 508. Beam bracket; 601. Leg; 602. Sleeper beam. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0029] See also Figure 1 and Figure 2 A double-track beam-changing device comprises a first single track 101 and a second single track 102, wherein movable trolleys 200 are arranged on the existing bridges on both sides of the hole position of the first single track 101 to be replaced, a guide beam 301 arranged along the longitudinal direction of the bridge is arranged above the hole position of the first single track 101 to be replaced, a pair of beam-hanging trolleys 302 for hanging and moving beam pieces are arranged at the lower end of the guide beam 301, and a transverse guide portion is arranged between the two ends of the guide beam 301 and the corresponding movable trolleys 200, the transverse guide portion comprises a first guide portion 401 located above the first single track 101 and a second guide portion 402 located above the second single track 102, the guide beam 301 can reciprocate between the first single track 101 and the second single track 102 along the transverse direction of the bridge through the transverse guide portion, the second guide portion 402 is movably connected to the first guide portion 401 to realize the avoidance of the second guide portion 402 on the second single track 102, and a beam piece transfer unit 500 is arranged on the second single track 102.

[0030] See also Figure 2During the construction process, the mobile trolley 200 enters the site, and a pair of mobile trolleys 200 move along the existing line to the two sides of the hole position of the first single line 101 to be replaced, and the guide beam 301 is carried by the mobile trolley 200 and is located above the hole position of the first single line 101 to be replaced. During the movement of the mobile trolley 200, the second guide part 402 can first move relative to the first guide part 401, so that it temporarily detaches from the line of the second single line 102, plays a role in avoiding the line of the second single line 102, reduces the interference of the second guide part 402 on the line of the second single line 102, and facilitates the entry of the beam piece transfer unit 500 on the second single line 102.

[0031] See also Figure 3 When the moving trolley 200 moves into position, the second guide portion 402 can be reset to restore it to a normal state. The first guide portion 401 and the second guide portion 402 jointly guide the guide beam 301, so that the guide beam 301 can reciprocate between the first single line 101 and the second single line 102 along the transverse direction of the bridge.

[0032] Before removing the old beams, it is necessary to first remove the sidewalks and other ancillary structures, remove the old track and collect the ballast, and remove the supporting bearings on the beams. Figure 4 At this time, the beam piece to be replaced can be lifted by the beam lifting trolley 302 on the guide beam 301. After the old beam piece is successfully lifted, the old beam piece needs to be placed on the beam piece transfer unit 500 on the second single line 102, and the old beam piece is transferred through the beam piece transfer unit 500.

[0033] See also Figure 5 Therefore, at this time, through the transverse guide part, the guide beam 301 moves along the transverse direction of the bridge, moving from the first single line 101 to the second single line 102, and the old beam piece is also moved to the second single line 102, and then the old beam piece is lowered to the beam piece transfer unit 500 on the second single line 102.

[0034] Since there are two old beams in each rack replacement hole on the first single line 101, the second old beam needs to be removed next. Figure 6 and Figure 7 Before dismantling the second piece of old beam, it is first necessary to withdraw the beam transfer unit 500 on which the first piece of old beam is placed, that is, through the transverse guide part, the guide beam 301 moves along the transverse direction of the bridge, from the second single line 102 to the first single line 101, and then the second guide part 402 avoids the line of the second single line 102, so as to facilitate the withdrawal of the beam transfer unit 500 on which the first piece of old beam is placed.

[0035] At this time, the beam transfer unit 500, which is about to be used to place the second piece of old beam, also enters the site and resets the second guide part 402. After the second guide part 402 is reset, the removal of the second piece of old beam can begin. Since the steps are the same as those for removing the first piece of old beam, they will not be repeated here.

[0036] When the two old beam pieces of the replacement hole are removed, the new beam piece is fed in. First, the second guide part 402 is made to avoid the line of the second single line 102, and the beam piece transfer unit 500 with the first new beam piece is placed in the field. Then the second guide part 402 is reset. Through the transverse guide part, the guide beam 301 moves along the transverse direction of the bridge from the first single line 101 to the second single line 102.

[0037] The first new beam piece is lifted by the beam lifting trolley 302 on the guide beam 301, and the new beam piece is suspended and moved above the frame replacement hole of the first single line 101, and then the first new beam piece is fed and the support bearing of the new beam piece is installed.

[0038] After the feeding of the first piece of new beam is completed, the second guide part 402 is ordered to avoid the line of the second single line 102, so that the beam transfer unit 500 that has unloaded the first piece of new beam is withdrawn, and then the beam transfer unit 500 with the second piece of new beam is placed in the site. Because the feeding method of the second piece of new beam is the same as that of the first piece of new beam, it will not be repeated here.

[0039] After the new beams are fed, routine construction such as ballast laying, transverse connection system fixing, new track row erection and auxiliary structure restoration needs to be completed in sequence.

[0040] After the beam feeding is completed, the line of the first single line 101 is complete, and the moving trolley 200 can carry the guide beam 301 to the next hole position to be replaced, and repeat the above steps. It should be noted that since the basic principle of removing the second old beam piece and feeding the new beam piece is the same as that of removing the first old beam piece, the schematic diagram of the process of removing the second old beam piece and feeding the new beam piece is omitted.

[0041] This solution can realize the lateral movement of the guide beam 301 on the double line by setting a lateral guide part with an avoidance function, and give full play to the transportation function of the second single line 102, thereby effectively avoiding the need for the connection and beam feeding to be carried out by lifting machinery in conjunction with the beam-carrying trolley in the traditional bridge replacement process, thereby reducing the construction difficulty and improving the efficiency.

[0042] In the prior art, beam splicing and beam feeding are usually completed in a single line, that is, beam transport vehicles for splicing old beams and feeding new beams are respectively arranged on both sides of the frame-changing hole, and in order to avoid the height of the beam transport vehicle head affecting the splicing and beam feeding process, the head of the vehicle is kept away from the frame-changing hole, and the rear of the vehicle is close to the frame-changing hole. Therefore, during the splicing and beam feeding process, the beam piece does not need to cross the head of the vehicle. Due to the limitation of the head position, the beam transport vehicle enters the site in reverse. This "reverse" entry method is not only inefficient for long-distance transportation, but also has the potential problem of not being easy to pass the approval of the railway bureau.

[0043] In this solution, since the second single line 102 can be fully utilized to realize the transportation function, the transportation of the beam transfer unit 500 is all forward travel, which can effectively avoid the above problems, thereby optimizing the construction process and saving a lot of time.

[0044] In this solution, the first guide part 401 and the second guide part 402 are mainly used to provide a running track for the movement of the guide beam 301, and the movement of the guide beam 301 can be powered by itself or by a lateral guide part, such as gears, belt drives, etc.

[0045] In the present scheme, the first guide portion 401 is movably connected to the second guide portion 402 in order to prevent the second guide portion 402 from occupying the line of the second single line 102. Therefore, the movable connection facilitates the movement of the second guide portion 402. The second guide portion 402 can be hinged to the first guide portion 401, and the avoidance is achieved by flipping the second guide portion 402. The second guide portion 402 can also be connected to the first guide portion 401 along a transverse sliding manner, and the avoidance of the second guide portion 402 is achieved by the extension and contraction of the second guide portion 402 relative to the first guide portion 401.

[0046] A supporting portion for ensuring the stability of the transverse guide portion is provided between the transverse guide portion and the bridge deck.

[0047] This solution is an optimization of the transverse guide part. Since the movable trolley 200 is located on the first single line 101, when the guide beam 301 hangs the beam plate and moves horizontally to the second single line 102, the center of gravity of the transverse guide part will produce a lateral offset, which may cause the guide beam 301 to tip over. For this reason, a support part is provided to support the transverse guide part, thereby avoiding the guide beam 301 from tipping over.

[0048] The first guide portion 401 is disposed on the corresponding moving vehicle 200 , and the second guide portion 402 is hinged to the first guide portion 401 .

[0049] This solution discloses the connection relationship between the first guide portion 401 and the second guide portion 402. Through a hinged setting, the second guide portion 402 can be flipped relative to the first guide portion 401, thereby achieving avoidance of the second single-line 102 line.

[0050] See also Figure 2 and Figure 3 , the second guide portion 402 can be flipped upward relative to the first guide portion 401.

[0051] Since the lateral guide portion is supported on the bridge deck by a support portion, in order to avoid interference caused by the support portion during the flipping of the second guide portion 402, the second guide portion 402 can be flipped upward relative to the first guide portion 401, thereby achieving rapid and effective flipping of the second guide portion 402.

[0052] See also Figure 2 The supporting portion includes a plurality of legs 601 disposed at the bottom ends of the first guide portion 401 and the second guide portion 402 .

[0053] This proposal discloses the structure of the support part in detail. By setting the support leg 601, the first guide part 401, the second guide part 402 and the bridge deck can be effectively supported, thereby stabilizing the lateral guide part. Preferably, the support leg 601 can be a hydraulic device, so that it itself has a certain lifting ability, thereby reducing the impact of the offset of the center of gravity of the guide beam 301.

[0054] The support portion further includes a support leg 602 disposed between the sleepers, and the support leg 601 is detachably connected to the first guide portion 401 and the second guide portion 402 .

[0055] This solution further optimizes the supporting part. Since the guide beam 301 moves laterally, even if the influence of the center of gravity shift is reduced by setting the support leg 601, the existing bridge itself will also have uneven force due to the center of gravity shift. For this reason, the support leg 602 is set. By setting the support leg 602, the external force from the support leg 601 can be evenly distributed in the lateral direction of the existing bridge, thereby reducing damage to the existing bridge.

[0056] When the device needs to be moved to the next rack-changing hole position, the first guide portion 401 and the second guide portion 402 can be disassembled from the leg 601 to facilitate the movement of the mobile trolley 200. The detachable connection can be conventionally achieved, such as bolt connection or connection pieces. Preferably, the leg 601 can also be detachably connected to the leg 602, so that the leg 601 can be reused.

[0057] A walking portion is provided at the bottom end of the guide beam 301 at a position corresponding to the transverse guide portion, and both the first guide portion 401 and the second guide portion 402 include tracks for the walking portion to move.

[0058] This solution discloses the movement mode of the guide beam 301. By providing a walking part and a track, the guide beam 301 can stably move laterally, thereby facilitating the construction.

[0059] A limiting part for preventing the walking part from derailing is arranged on the track.

[0060] In this solution, by setting a limit part, the derailment of the walking part can be effectively avoided, thereby optimizing the overall stability of the structure. The limit part can adopt conventional options, such as setting anti-rollover wheels, etc.

[0061] A bracket 303 is provided between the walking portion and the guide beam 301 .

[0062] The support 303 can be provided to raise the height of the guide beam 301, thereby providing operating space for the movement of the beam piece.

[0063] See also Figure 8 The beam transfer unit 500 includes a rail vehicle 501, an old beam transport vehicle 502 and a new beam transport vehicle 503 which are arranged in sequence.

[0064] This solution further optimizes the beam transfer unit 500. The railcar 501, the old beam transporter 502 and the new beam transporter 503 are arranged in sequence to correspond to the construction sequence of this solution. That is, the railcar 501 provides carrying power, the old beam transporter 502 places the dismantled old beam pieces, and the new beam transporter 503 transports the new beam pieces to be fed. Correspondingly, two old beam transporters 502 and two new beam transporters 503 can be set. In order to improve the placement stability of the old and new beam pieces, beam piece brackets 303508 can be set on both the old beam transporter 502 and the new beam transporter 503. More preferably, in order to further optimize the structure of the beam transfer unit 500, an old rail transporter 504 and an old ballast transporter 505 are arranged in sequence between the railcar 501 and the old beam transporter 502. A new ballast transport vehicle 506 and a new track transport vehicle 507 are arranged in sequence behind the new beam transport vehicle 503, so that the beam transfer unit 500 as a whole can fully adapt to all processes of the entire construction, thereby effectively improving the construction efficiency.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A double-track beam replacement device, comprising a first single track and a second single track, characterized in that: The existing bridges on both sides of the first single-line frame-changing hole are provided with movable trolleys, a guide beam arranged along the longitudinal direction of the bridge is provided above the first single-line frame-changing hole, a pair of beam-hanging trolleys for hanging and moving beam pieces are provided at the lower end of the guide beam, a transverse guide portion is provided between the two ends of the guide beam and the corresponding movable trolleys, the transverse guide portion includes a first guide portion located above the first single line and a second guide portion located above the second single line, the guide beam can reciprocate between the first single line and the second single line along the transverse direction of the bridge through the transverse guide portion, the second guide portion is movably connected to the first guide portion to realize the avoidance of the second guide portion on the second single line, and a beam piece transfer unit is provided on the second single line; A support portion for ensuring the stability of the transverse guide portion is provided between the transverse guide portion and the bridge deck; The first guide portion is arranged on the corresponding moving trolley, and the second guide portion is hinged to the first guide portion; The second guide portion can be flipped upward relative to the first guide portion; The support portion includes a plurality of legs disposed at the bottom ends of the first guide portion and the second guide portion; The support portion further comprises a sleeper beam arranged between the sleepers, and the support leg is detachably connected to the first guide portion and the second guide portion.

2. The double-track beam replacement equipment according to claim 1, characterized in that: A walking portion is provided at the bottom end of the guide beam at a position corresponding to the transverse guide portion, and both the first guide portion and the second guide portion include tracks for the walking portion to move.

3. The double-track beam replacement equipment according to claim 2, characterized in that: A limiting part for preventing the walking part from derailing is arranged on the track.

4. The double-track beam replacement equipment according to claim 2, characterized in that: A bracket is arranged between the walking part and the guide beam.

5. The double-track beam replacement equipment according to claim 1, characterized in that: The beam piece transfer unit comprises a rail vehicle, an old beam transport vehicle and a new beam transport vehicle which are arranged in sequence.

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