Shield block grabbing tool and segment erector

Abstract

The utility model relates to a shield block grabbing tool and a duct piece assembling machine, and the shield block grabbing tool is installed on the duct piece assembling machine and used for grabbing shield blocks; the shield block grabbing tool comprises a supporting frame, and the supporting frame is used for installing the shield block grabbing tool on the duct piece assembling machine. The guiding pieces are oppositely arranged at the two ends of the supporting frame in the first direction; the telescopic grabbing pieces are arranged on the opposite sides of the guiding pieces correspondingly, and the grabbing pieces are arranged in a staggered mode in the second direction, so that the extending ends of the grabbing pieces can grab and release the shield body blocks through guiding of the opposite guiding pieces; the first direction and the second direction are orthogonal. The shield block grabbing tool can be installed on a duct piece assembling machine through the supporting frame, the guiding piece guides the output end of the grabbing piece, and therefore the grabbing piece grabs and releases shield blocks.

Description

Technical Field

[0001] This utility model relates to the field of tunnel expansion shield technology, and in particular to a shield body segment grabbing tool and segment assembly machine. Background Technology

[0002] Expanded-diameter shield tunneling is a construction method that expands the diameter of a section of an existing shield tunnel to meet the needs of building subway stations and installing other equipment. During the construction of expanded-diameter shield tunnels, it is necessary to assemble tunnel segments and divide the shield body into sections.

[0003] Chinese patent document CN118998126A discloses a vacuum suction cup type segment assembly machine, including a vacuum suction cup. This machine is a mechanical structure used in tunnel boring machines (TBMs) for assembling and lining segments and supporting excavated tunnels. It features forward and reverse rotation, forward and backward travel, vertical lifting, and left and right swinging movements. These movements are specifically adjusted to ensure precise segment placement. Its gripping method is a vacuum suction cup gripping. The shortcomings and deficiencies of existing segment assembly machines lie in the fact that their vacuum suction cups utilize vacuum negative pressure to adsorb and fix segments, and their shape is matched to the segment shape. (See [reference needed]). Figure 1 and Figure 4 Because the radius of the upper surface of the shield block 2 is different from that of the upper surface of the tube segment 4, the shape and size of the vacuum suction cup 1 are not suitable for the shield block 2 and cannot provide sufficient adsorption area. Therefore, the vacuum suction cup 1 cannot grab and assemble the shield block 2. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, this utility model provides a shield body segment grabbing tool and a segment assembly machine, which solves the technical problem that the segment assembly machine cannot grab and assemble shield body segments.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0008] In the first aspect, this utility model provides a shield body segment grabbing tool, which is installed on a segment assembly machine to grab shield body segments;

[0009] The shield body segment grasping fixture includes:

[0010] A support frame is used to install the shield body segment grabbing fixture onto the segment assembly machine;

[0011] Guide members are disposed opposite to each other at both ends of the support frame in a first direction;

[0012] Telescopic grippers are respectively disposed on opposite sides of the guide members, and the grippers are staggered in a second direction so that the extended ends of the grippers can grip and release the shield body segments by being guided by the opposite guide members.

[0013] The first direction and the second direction are orthogonal.

[0014] Optionally, the gripper includes: a linear drive member rotatably disposed on the opposite side of the guide member in a vertical plane; and a limiting rod connected to the extended end of the linear drive member;

[0015] The limiting rod of the linear drive component can be guided by the opposite guide component to pass through the mounting slot opened on the top of the shield block for gripping.

[0016] Optionally, the guide member is two guide blocks along the first direction, and the inner sides of the two guide blocks are respectively hinged to the linear drive member. The interior of the two guide blocks is provided with guide grooves corresponding to the mounting groove for the limit rod to pass through. The linear drive member can drive the limit rod to extend or retract along the guide groove so as to selectively insert into the mounting groove.

[0017] Optionally, the support frame consists of two connecting crossbars arranged along the second direction, with two guide blocks and two connecting crossbars connected together in sequence to form a rectangular frame, the top of which is connected to the segment assembly machine.

[0018] Optionally, the shield body segment gripping fixture as described in claim 3 is characterized in that: the axial angle between the guide groove inside the guide block located on one side of the first direction and the horizontal plane is 5°-20°, and the axial angle between the guide groove inside the guide block located on the other side of the first direction and the horizontal plane is 160°-175°.

[0019] Optionally, the limiting rod tapers at one end of the shield body segment.

[0020] Optionally, the linear drive component is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

[0021] Optionally, the cross-section of the limiting rod is circular, square, or rectangular.

[0022] Secondly, this utility model embodiment provides a segment assembly machine, including a vacuum suction cup, the above-mentioned shield body segment gripping fixture, and multiple connecting bolts;

[0023] The support frame of the shield body segment grabbing tool and the vacuum suction cup are detachably connected by multiple connecting bolts.

[0024] Optionally, the number of connecting bolts is four, with one connecting bolt corresponding to each of the four corner areas of the support frame.

[0025] (III) Beneficial Effects

[0026] The beneficial effects of this utility model are as follows: The shield segment gripping fixture of this utility model is installed on the segment assembly machine for gripping shield segments. It includes a support frame for mounting the shield segment gripping fixture on the segment assembly machine; guide members are arranged opposite to each other at both ends of the support frame in a first direction; telescopic gripping members are respectively arranged on opposite sides of the guide members, and the gripping members are staggered in a second direction so that the extended end of the gripping member can grip and release the shield segment through the guidance of the opposite guide members; the first direction and the second direction are orthogonal. Compared with the prior art, it guides the gripping members through the guide members, so that the output end of the gripping members can telescopically grip and release the shield segment. It is easy to install and operate, and overcomes the defect that the existing vacuum suction cup cannot grip the shield segment.

[0027] The shield segment gripping fixture of this utility model includes: a linear drive component rotatably mounted on the opposite side of the guide component in a vertical plane; and a limiting rod connected to the extended end of the linear drive component; the limiting rod of the linear drive component can pass through the mounting groove opened on the top of the shield segment under the guidance of the opposite guide component to grip, which makes the linear drive components cross. When the crossed linear drive components drive the limiting rod to insert into the mounting groove, mechanical self-locking can be achieved to prevent the shield segment from falling, which is safe and reliable. Attached Figure Description

[0028] Figure 1 This is a front view schematic diagram of Embodiment 1 of the shield body segmentation gripping fixture of this utility model;

[0029] Figure 2 for Figure 1 A schematic diagram of the internal structure of the shield body segment grabbing tool, in which the shield body segment grabbing tool is in the grabbing state;

[0030] Figure 3 for Figure 1 Another internal structural diagram of the shield body segment grabbing tool, in which the shield body segment grabbing tool is in the released state;

[0031] Figure 4 This is a front view diagram of an existing tunnel segment.

[0032] [Explanation of Labels in the Attached Image]

[0033] 1: Vacuum suction cup;

[0034] 2: Shield body segmentation; 201: Mounting slot;

[0035] 3: Shield body segmentation gripping fixture; 301: Support frame; 302: Linear drive component; 303: Limiting rod; 304: Guide block; 305: Connecting crossbeam; 306: Guide groove;

[0036] 4: Segmentation. Detailed Implementation

[0037] To better explain and facilitate understanding of this utility model, a detailed description of its specific embodiments is provided below with reference to the accompanying drawings. In this document, directional terms such as "upper," "lower," "left," "right," "front," and "rear" are used interchangeably with other directional terms. Figure 1 The orientation is used as a reference. It should be noted that in this embodiment, the "left-right direction" is the "first direction" and the "front-back direction" is the "second direction".

[0038] Example 1:

[0039] Reference Figure 1 , Figure 2 and Figure 3 This embodiment provides a shield body segment grabbing tool, which is installed on the segment assembly machine to grab shield body segments 2;

[0040] The shield body segmentation gripping fixture 3 includes:

[0041] Support frame 301 is used to install the shield body segment grabbing fixture onto the segment assembly machine;

[0042] Guide members are disposed opposite to each other at both ends of the support frame 301 in the left-right direction;

[0043] Telescopic grippers are respectively set on opposite sides of the guide members, and the grippers are staggered in the front-to-back direction so that the extended end of the gripper can grasp and release the shield block 2 through the guidance of the opposite guide members.

[0044] In this embodiment, the gripping component includes: a linear drive member 302 rotatably disposed on the opposing side of the guide member in a vertical plane; and a limiting rod 303 connected to the protruding end of the linear drive member 302; the limiting rod 303 of the linear drive member 302 can pass through the mounting groove 201 opened on the top of the shield block 2 under the guidance of the opposing guide member to perform gripping. It should be noted that in this embodiment, there are two linear drive members 302 and two limiting rods 303.

[0045] The shield block gripping fixture of this embodiment can grip the shield block 2 by driving the limiting rod 303 into the mounting groove 201 on the shield block 2 through the linear drive 302. In addition, due to the above structure, the two linear drive 302 are arranged in a cross pattern. When the cross linear drive 302 drives the limiting rod 303 to insert into the mounting groove 201, it can achieve mechanical self-locking to prevent the shield block 2 from falling off, which is safe and reliable.

[0046] Specifically, the guide is two guide blocks 304 arranged left and right. The inner sides of the two guide blocks 304 are respectively hinged to linear drive members 302. The interior of the two guide blocks 304 is provided with guide grooves 306 corresponding to the mounting grooves 201 for the limit rod 303 to pass through. The linear drive members 302 can drive the limit rod 303 to extend or retract along the guide grooves 306 so as to selectively insert into the mounting grooves 201.

[0047] Furthermore, the support frame 301 includes two connecting crossbeams 305 arranged front and rear, two guide blocks 304 and two connecting crossbeams 305 connected together in sequence to form a rectangular frame, and the top of the rectangular frame is connected to the segment assembly machine.

[0048] It should be noted that when the shield block gripping fixture 3 is located directly above the shield block 2 and in the gripping position, the axial direction of the guide groove 306 is aligned with the axial direction of the mounting groove 201 to ensure that the limiting rod 303 is directly opposite the mounting groove 201. The guide groove 306 inside the guide block 304 serves to guide and support the limiting rod 303.

[0049] In this embodiment, the end of the limiting rod 303 near the shield block 2 tapers. This tapering design guides the end of the limiting rod 303, making it easier for the limiting rod 303 to be inserted into the mounting slot 201.

[0050] In this embodiment, the axial angle between the guide groove 306 inside the guide block 304 on the left and the horizontal plane is 5°-20°, and the axial angle between the guide groove 306 inside the guide block 304 on the right and the horizontal plane is 160°-175°.

[0051] In this embodiment, the linear drive 302 can be a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, or a ball screw. Using the above-mentioned linear drive makes operation convenient, simple, and quick.

[0052] In this embodiment, the cross-section of the limiting rod 303 can be circular, square, or rectangular.

[0053] Example 2:

[0054] This embodiment provides a segment assembly machine, which includes a vacuum suction cup 1, a shield segment gripping fixture 3 as described in Embodiment 1, and multiple connecting bolts. The connecting crossbar 305 of the support frame 301 of the shield segment gripping fixture 3 is detachably connected to the vacuum suction cup 1 by multiple connecting bolts.

[0055] Preferably, the number of connecting bolts is four, and one connecting bolt is provided at each of the four corner areas of the support frame 301.

[0056] The segment assembly machine of this embodiment is convenient and quick to operate, and can release and assemble the shield body segment 2 at various angles. Its working process is as follows: S1, the shield body segment gripping fixture 3 is bolted to the vacuum suction cup 1; S2, the limiting rod 303 of the shield body segment gripping fixture 3 is aligned with the mounting groove 201 of the shield body segment 2; S3, the linear drive component 302 drives the limiting rod 303 to extend and insert into the mounting groove 201 of the shield body segment 2; S4, the segment assembly machine adjusts the position and attitude of the shield body segment 2 to the assembly area; S5, the worker fixes the shield body segment; S6, the linear drive component 302 drives the limiting rod 303 to retract from the mounting groove 201 to release the shield body segment 2.

[0057] The remaining parts that are the same as in Example 1 will not be repeated here.

[0058] In the description of this utility model, it should be understood that 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 indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0059] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," 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. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0060] In this utility model, 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," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0061] In the description of this specification, the terms "one embodiment," "some embodiments," "embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0062] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make modifications, alterations, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A segmented shield body gripping tool, characterized in that: Installed on the segment assembly machine, it is used to grab the shield body segments (2); The shield body segmentation gripping fixture (3) includes: Support frame (301) is used to install the shield body segment grabbing tool on the segment assembly machine; Guide members are disposed opposite to each other at both ends of the support frame (301) in a first direction; Telescopic grippers are respectively disposed on opposite sides of the guide members, and the grippers are staggered in the second direction so that the extended ends of the grippers can grip and release the shield block (2) by being guided by the opposite guide members; The first direction and the second direction are orthogonal.

2. The segmented shield body gripping tool of claim 1, wherein: The gripping member includes: a linear drive member (302) rotatably disposed on the opposite side of the guide member in a vertical plane; and a limiting rod (303) connected to the extended end of the linear drive member (302); The limiting rod (303) of the linear drive (302) can be guided by the opposite guide to pass through the mounting slot (201) opened on the top of the shield block (2) for gripping.

3. The segmented shield body gripping tool of claim 2, wherein: The guide is two guide blocks (304) arranged along the first direction. The inner sides of the two guide blocks (304) are respectively hinged to the linear drive (302). The interior of the two guide blocks (304) is provided with guide grooves (306) corresponding to the mounting groove (201) for the limit rod (303) to pass through. The linear drive (302) drives the limit rod (303) to extend or retract along the guide groove (306) so as to selectively insert into the mounting groove (201).

4. The segmented shield body gripping tool of claim 3, wherein: The support frame (301) includes two connecting crossbeams (305) arranged along the second direction. Two guide blocks (304) and two connecting crossbeams (305) are connected together in sequence to form a rectangular frame. The top of the rectangular frame is connected to the segment assembly machine.

5. The shield body segmentation gripping fixture as described in claim 3, characterized in that: The axial angle between the guide groove (306) inside the guide block (304) located on one side of the first direction and the horizontal plane is 5°-20°, and the axial angle between the guide groove (306) inside the guide block (304) located on the other side of the first direction and the horizontal plane is 160°-175°.

6. The shield body segmentation gripping fixture as described in claim 2, characterized in that: The limiting rod (303) gradually tapers towards one end of the shield block (2).

7. The shield body segmentation gripping fixture as described in claim 2, characterized in that: The linear drive (302) is a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder.

8. The shield body segmentation gripping fixture as described in claim 2, characterized in that: The cross-section of the limiting rod (303) is circular, square, or rectangular.

9. A segment assembly machine, characterized in that: Includes a vacuum suction cup (1), a shield body segmentation gripping fixture (3) as described in any one of claims 1-8, and multiple connecting bolts; The support frame (301) of the shield body segment grabbing tool (3) and the vacuum suction cup (1) are detachably connected by multiple connecting bolts.

10. The segment assembly machine as described in claim 9, characterized in that: The number of connecting bolts is four, and one connecting bolt is provided at each of the four corner areas of the support frame (301).

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