A pipe segment hoisting suction disc type bridge crane

Abstract

The utility model provides a kind of sucking disc type bridge crane of pipe piece hoisting, including girder, girder is provided with trolley, the lower portion of trolley is provided with sucking disc spreader, the sucking disc spreader has hanger, the both sides of hanger are fixed with crossbeam, the both ends bottom of crossbeam are provided with shoulder pole, the middle part of shoulder pole is hinged with the bottom of crossbeam, the both ends bottom of shoulder pole are hinged with vacuum chuck, the lower portion of hanger is provided with anti-drop mechanism;When the abnormal situation causes pipe piece to fall off from vacuum chuck in hoisting process in the utility model, the two groups of supporting rods of anti-drop mechanism can provide temporary support under pipe piece, at this time, crane is controlled to lower pipe piece to safety area, can reduce pipe piece falling risk, ensure that on-site construction safety.

Description

Technical Field

[0001] This utility model belongs to the field of crane technology, specifically relating to a suction cup type bridge crane for transporting tunnel segments. Background Technology

[0002] The segment suction cup crane is a special lifting equipment designed specifically for the hoisting and transportation of concrete segments in shield tunnel construction. Its core component, the vacuum suction cup, achieves non-destructive handling of the segments through negative pressure adsorption.

[0003] In the prior art, Chinese invention patent application with publication number CN119637682A discloses a suction cup bridge crane for lifting tunnel segments. In this crane, the suction cup is used to hold the tunnel segments in place. However, in actual applications, if there are air holes, cracks, or unevenness on the surface of the tunnel segments, the suction cup sealing cavity may leak air. Alternatively, if the vacuum pump suddenly loses power, the accumulator may not hold the pressure for long enough, causing the suction force to drop sharply or even disappear, which could lead to the risk of the tunnel segments falling off.

[0004] Therefore, it is necessary to design a suction cup-type bridge crane for transporting tunnel segments that can reduce the risk of segment detachment and ensure on-site construction safety to solve the current technical problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a suction cup-type bridge crane for transporting tunnel segments that can reduce the risk of segment detachment and ensure on-site construction safety.

[0006] The technical solution of this utility model is as follows: a suction cup type bridge crane for transporting tunnel segments, including a main beam, a trolley mounted on the main beam, a suction cup lifting device mounted below the trolley, the suction cup lifting device having a lifting frame, crossbeams fixedly mounted on both sides of the lifting frame, a spreader beam mounted at the bottom of both ends of the crossbeam, the middle of the spreader beam hinged to the bottom of the crossbeam, a vacuum suction cup hinged at the bottom of both ends of the spreader beam, an anti-detachment mechanism mounted below the lifting frame; the anti-detachment mechanism has two parallel brackets, the brackets are slidably connected to the bottom of the crossbeam, and a support rod perpendicular to the crossbeam is vertically mounted on one side of the bottom of both ends of the two brackets, and a driving component is mounted at the bottom of the lifting frame to drive the two brackets to move closer or further apart.

[0007] Furthermore, the drive assembly has a gear centrally located below the hanger and a drive motor for driving the gear to rotate. A rack that meshes with the gear is vertically arranged on the bracket, and the rack is slidably connected to the bottom of the crossbeam.

[0008] Furthermore, a rack sleeve is slidably fitted on the outer side of the rack, and the rack sleeve is fixedly disposed at the bottom of the crossbeam.

[0009] Furthermore, one of the brackets has two outer sleeves symmetrically arranged on its inner side, perpendicular to the outer sleeves, and the other bracket has an inner sleeve corresponding to the outer sleeves on its inner side. The inner sleeve is slidably disposed inside the outer sleeves. A slide block is fixedly disposed at the bottom of the crossbeam, and the outer sleeve is slidably disposed inside the slide block.

[0010] Furthermore, a plug is fixedly provided on one end of the support rod near the other support rod, and the other support rod has a channel inside that matches the end of the plug.

[0011] Furthermore, a hanging plate is fixedly installed at the center of the top of the hanger, and a hanging hole is provided on the hanging plate.

[0012] The beneficial effects of this utility model are: (1) In the process of lifting the pipe segment by the suction cup type bridge crane of this utility model, the vacuum suction cup adsorbs and fixes the top of the pipe segment, and then the lifting mechanism in the trolley lifts the pipe segment to a certain height so that the support rod in the anti-detachment mechanism can extend into the bottom of the pipe segment, and then the normal lifting is carried out. (2) If an abnormal situation occurs during the hoisting process and the segment falls off the vacuum suction cup, the two sets of support rods of the anti-detachment mechanism can provide temporary support for the segment from below. At this time, the crane can be operated to lower the segment to a safe area, which can reduce the risk of segment falling off and ensure on-site construction safety. (3) The drive assembly can drive the two brackets to slide at the bottom of the crossbeam, so that the two side rods are close to or far away. After the two side rods are far away, there is space between the two side rods for adsorbing the tube sheet. After the tube sheet is adsorbed and fixed, the suction cup hanger is raised to a certain height, and the two side rods are controlled to move close to each other to the bottom of the tube sheet, so as to provide temporary support for the tube sheet when it falls off. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the suction cup type bridge crane for lifting tunnel segments in this utility model.

[0014] Figure 2 This is one of the structural schematic diagrams of the suction cup lifting device in this utility model.

[0015] Figure 3 This is the second structural schematic diagram of the suction cup lifting device in this utility model.

[0016] Figure 4 This is the third structural schematic diagram of the suction cup lifting device in this utility model.

[0017] Figure 5 This is a schematic diagram of the support rod in this utility model. Detailed Implementation

[0018] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0019] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0020] like Figures 1 to 5As shown, a suction cup type bridge crane for lifting tunnel segments is disclosed, including a main beam 300, a trolley 200 mounted on the main beam 300, and a suction cup lifting device 100 mounted below the trolley 200. The suction cup lifting device 100 has a lifting frame 3, and crossbeams 2 are fixedly mounted on both sides of the lifting frame 3. The crossbeams 2 are welded and fixed to both sides of the lifting frame 3. A flat beam 4 is mounted at the bottom of both ends of the crossbeam 2, and the middle of the flat beam 4 is hinged to the bottom of the crossbeam 2. Vacuum suction cups 5 are hinged to the bottom of both ends of the flat beam 4. An anti-detachment mechanism 6 is provided below the lifting frame 1. The anti-detachment mechanism 6 has two parallel brackets 61, which are slidably connected to the bottom of the crossbeam 2. A support rod 62 perpendicular to the crossbeam 2 is vertically mounted on one side of the bottom of each end of the two brackets 61. A drive assembly is provided at the bottom of the lifting frame 1 to drive the two brackets 61 to move closer or further apart. In this example, the suction cup type bridge crane can lift tunnel segments. Vacuum suction cup 5 adsorbs and fixes the top of the pipe segment. Then, the lifting mechanism in the trolley lifts the pipe segment to a certain height, allowing the support rod 62 in the anti-detachment mechanism 6 to extend under the pipe segment before normal hoisting. If an abnormal situation occurs during hoisting and the pipe segment falls off the vacuum suction cup 5, the two sets of support rods 62 in the anti-detachment mechanism 6 can provide temporary support under the pipe segment. At this time, the crane can be operated to lower the pipe segment to a safe area, which can reduce the risk of pipe segment falling off and ensure on-site construction safety. The drive component can drive the two brackets 61 to slide at the bottom of the crossbeam 2, so that the support rods 62 on both sides are close together or far apart. After the support rods 62 on both sides are far apart, there is space between the support rods 62 on both sides for adsorbing the pipe segment. After the pipe segment is adsorbed and fixed, the suction cup lifting device 100 is lifted to a certain height, and the support rods 62 on both sides are controlled to move close together under the pipe segment to provide temporary support for the pipe segment when it falls off.

[0021] In some embodiments, such as Figure 3 As shown, the drive assembly has a gear 63 centrally located below the hanger 1 and a drive motor 66 that drives the gear 63 to rotate. A rack 64 that meshes with the gear 63 is vertically arranged on the bracket 61. The rack 64 is slidably connected to the bottom of the crossbeam 2. The drive motor 66 drives the gear 63 to rotate, and the gear 63 meshes with the rack 64. The two racks 64 push the two brackets 61 closer or further apart.

[0022] In some embodiments, a rack sleeve 65 is slidably fitted on the outer side of the rack 64, and the rack sleeve 65 is fixedly disposed at the bottom of the crossbeam 2; the rack sleeve 65 is welded and fixed to the bottom of the crossbeam 2, and a channel for the rack 64 to slide is provided on the rack sleeve 65, and the rack 64 is slidably disposed inside the channel to ensure the stability of the rack 64, and one end of the rack 64 is welded and fixed perpendicularly to one side of the bracket 61.

[0023] In some embodiments, such as Figure 4As shown, two outer sleeves 67 perpendicular to the inner side of one bracket 61 are symmetrically arranged, and an inner sleeve 68 is arranged on the inner side of the other bracket 61 corresponding to the outer sleeves 67. The inner sleeve 68 is slidably disposed inside the outer sleeves 67. A slide block 69 is fixedly disposed at the bottom of the crossbeam 2, and the outer sleeve 67 is slidably disposed inside the slide block 69. The outer sleeve 67 and the slide block 69 are slidably connected, realizing the sliding connection between one bracket 61 and the bottom of the crossbeam 2. The inner sleeve 68 is slidably connected inside the outer sleeve 67, realizing the sliding connection between the other bracket 61 and the bottom of the crossbeam 2.

[0024] In some embodiments, such as Figure 5 As shown, a plug 621 is fixedly provided on one end of a support rod 62 near the other support rod 62, and the other support rod 62 has a channel inside that matches the end of the plug 621. When the ends of the two support rods 62 abut against each other, the plug 621 of one support rod 62 is inserted into the channel of the other support rod 62, thereby increasing the bending strength between the two support rods 62 and thus improving their load-bearing capacity.

[0025] In some embodiments, a hanging plate 3 is fixedly installed at the center of the top of the hanger 1, and a hanging hole is provided on the upper part of the hanging plate 3; the hook under the trolley is hung at the hanging hole.

[0026] The various embodiments of this utility model have now been described in detail. To avoid obscuring the concept of this utility model, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0027] The embodiments described above only illustrate some implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A suction cup type bridge crane for transporting tunnel segments, comprising a main beam, a trolley mounted on the main beam, and a suction cup lifting device mounted below the trolley, characterized in that: The suction cup hanger has a hanger frame, with crossbeams fixedly installed on both sides of the hanger frame. A spreader beam is installed at the bottom of each end of the crossbeam, with the middle of the spreader beam hinged to the bottom of the crossbeam. A vacuum suction cup is hinged to the bottom of each end of the spreader beam. An anti-detachment mechanism is installed below the hanger frame. The anti-detachment mechanism has two parallel brackets that are slidably connected to the bottom of the crossbeam. A support rod perpendicular to the crossbeam is vertically installed on one side of the bottom of each of the two brackets at both ends. A drive assembly is installed at the bottom of the hanger frame to drive the two brackets closer together or further apart.

2. The suction cup type bridge crane for segment lifting according to claim 1, characterized in that: The drive assembly has a gear centrally located below the hanger and a drive motor that drives the gear to rotate. A rack that meshes with the gear is vertically arranged on the bracket, and the rack is slidably connected to the bottom of the crossbeam.

3. The suction cup type bridge crane for segment lifting according to claim 2, characterized in that: A rack sleeve is slidably fitted on the outer side of the rack, and the rack sleeve is fixedly installed at the bottom of the crossbeam.

4. The suction cup type bridge crane for segment lifting according to claim 1, characterized in that: Two outer sleeves perpendicular to the inner side of one bracket are symmetrically arranged on the inner side, and an inner sleeve is arranged on the inner side of the other bracket corresponding to the outer sleeve. The inner sleeve is slidably arranged inside the outer sleeve. A slide is fixedly arranged at the bottom of the crossbeam, and the outer sleeve is slidably arranged inside the slide.

5. The suction cup type bridge crane for segment lifting according to claim 1, characterized in that: One of the support rods has a plug fixedly provided at one end near the other support rod, and the other support rod has a channel inside that matches the end of the plug.

6. The suction cup type bridge crane for segment lifting according to claim 1, characterized in that: A hanging plate is fixedly installed at the center of the top of the hanger, and a hanging hole is provided on the hanging plate.

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