Reinforcement cage welding auxiliary device for subway engineering shield segment

By introducing an adjustable support rod spacing and lifting assembly into the shield tunnel segment reinforcement cage welding device, the problem of insufficient applicability of the existing device was solved, and effective support and welding convenience for steel bars of different lengths were achieved.

CN224143841UActive Publication Date: 2026-04-21SHENYANG MINGJUN NEW RAIL TRANSIT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG MINGJUN NEW RAIL TRANSIT TECH CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

The existing auxiliary devices for welding the steel cage of tunnel segments cannot adjust the spacing between two support rods on the same horizontal line according to the different lengths of the outer and inner arc bars, resulting in low applicability.

Method used

A device comprising a worktable, a fixed frame, a sliding frame, and a lifting assembly was designed. The spacing between the support rods is adjusted by a knob and a two-way lead screw, and the position of the inner arc rib is adjusted by the lifting assembly to align it with the end of the outer arc rib for easy welding.

Benefits of technology

The device's applicability has been improved, enabling it to adapt to outer and inner arc ribs of different lengths, thereby enhancing welding efficiency and accuracy.

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Abstract

The utility model discloses a reinforcement cage welding auxiliary device of a subway engineering shield segment, and relates to the technical field of shield segment production. The device comprises a workbench, a fixing frame is fixedly installed on the workbench, a fixing frame is fixedly installed at the bottom end in the fixing frame, a sliding frame is installed in the fixing frame in a sliding mode, two first sliding blocks distributed in a mirror image mode are installed in the sliding frame and the fixing frame in a sliding mode, and supporting rods are fixedly installed on the two sides of the four first sliding blocks. The four supporting rods are slidably sleeved with a plurality of supporting wheels distributed at equal intervals, sliding plates are fixedly installed on the sides, away from each other, of the two first sliding blocks located in the fixing frame, of the four first sliding blocks, the two first sliding blocks located in the sliding frame are slidably installed on the corresponding sliding plates, and a two-way lead screw is rotatably installed in the fixing frame. The two-way lead screw is inserted into the two sliding plates in a threaded mode, a first rotary knob is fixedly installed at one end of the two-way lead screw, and a lifting assembly is installed on the fixing frame.
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Description

Technical Field

[0001] This utility model relates to the field of shield tunnel segment production technology, specifically to an auxiliary device for welding and processing the reinforcing cage of shield tunnel segments in subway engineering. Background Technology

[0002] A utility model application with application number 202421131607.9 discloses an auxiliary device for welding the reinforcing cage of a tunnel segment, comprising: a support plate, a guide rod, and a screw rod. The support plate includes an upper support plate and a lower support plate, with the lower support plate standing in the middle of the upper surface of the base plate and the upper support plate correspondingly standing above the lower support plate. The guide rod is erected on the top of the lower support plate, and its upper end passes through the upper support plate, allowing the upper support plate to move axially along the guide rod. The lower end of the screw rod is rotatably disposed inside the lower support plate, and its upper end passes through the upper support plate and is threadedly connected to it. The upper and lower displacement of the upper support plate is controlled by rotating the screw rod. This utility model can quickly bring the welding points of the outer and inner arc reinforcing bars of the main reinforcing cage of the tunnel segment into contact, and can ensure the accuracy of the welding points. Workers can confidently weld at these points, providing great convenience and significantly improving their welding speed.

[0003] However, the above technical solution cannot adjust the spacing between two support rods on the same horizontal line according to the different lengths of the outer and inner arc ribs. It can only support outer and inner arc ribs of fixed length, which has low applicability. Utility Model Content

[0004] To address the problem that existing auxiliary devices for welding steel cages of tunnel boring machine (TBM) segments cannot adjust the spacing between two support rods on the same horizontal line according to the different lengths of outer and inner arc bars, and can only support outer and inner arc bars of fixed lengths, resulting in low applicability, the purpose of this utility model is to provide an auxiliary device for welding steel cages of TBM segments in subway engineering.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: an auxiliary device for welding steel cages of tunnel segments in subway engineering, comprising a workbench, a fixed frame fixedly installed on the workbench, a fixed frame fixedly installed at the bottom of the fixed frame, a sliding frame slidably installed inside the fixed frame, two mirror-distributed first sliders slidably installed in both the sliding frame and the fixed frame, support rods fixedly installed on both sides of the four first sliders, and multiple support wheels equidistantly sleeved on the four support rods, and sliding plates fixedly installed on the two first sliders located in the fixed frame on the opposite sides, with the sliding plates penetrating and inserted into the fixed frame and the sliding frame, and the two first sliders located in the sliding frame slidably installed on the corresponding sliding plates, a bidirectional screw rotatably installed inside the fixed frame, and the bidirectional screw threaded into the two sliding plates, a first knob fixedly installed at one end of the bidirectional screw, and a lifting assembly installed on the fixed frame.

[0006] Preferably, the lifting assembly includes two symmetrically distributed lead screws, which are rotatably mounted on both sides of the fixed frame and threaded into both ends of the sliding frame. A drive shaft is rotatably mounted on the top of the fixed frame, and a third knob is fixedly mounted on one end of the drive shaft. Two first bevel gears are fixedly mounted on the drive shaft, and a second bevel gear is fixedly mounted on the top of each of the two lead screws, with the second bevel gear meshing with the corresponding first bevel gear.

[0007] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0008] 1. In this utility model, the first knob can be used to drive the bidirectional lead screw to rotate according to the length of the outer arc rib and the inner arc rib. The bidirectional lead screw drives the two sliding plates to slide towards or away from each other. The two sliding plates drive the corresponding two first sliders to slide in the fixed frame and the sliding frame respectively. The first sliders drive the support rod to slide and adjust the spacing, thereby improving the applicability of the device.

[0009] 2. In this utility model, by setting up a lifting component, the lifting component can drive the sliding frame to descend, and the sliding frame can drive the inner arc rib to descend, so that the two ends of the inner arc rib contact the two ends of the corresponding outer arc rib, which facilitates subsequent welding. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the cross-sectional structure of the fixing frame of this utility model;

[0013] Figure 3 This is a schematic diagram of the support rod structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the assembly structure of the inner and outer arc ribs of this utility model;

[0015] Figure 5 This is a schematic diagram of the overall main structure of this utility model.

[0016] In the diagram: 1. Workbench; 2. Fixing frame; 3. Fixing frame; 4. Sliding frame; 5. First slider; 6. Sliding plate; 7. Support rod; 701. Limiting groove; 8. Support wheel; 9. Two-way lead screw; 10. First knob; 11. Pressure rod; 12. Second slider; 13. Threaded rod; 14. Second knob; 15. Lifting assembly; 151. Lead screw; 152. Drive shaft; 153. First bevel gear; 154. Second bevel gear; 155. Third knob; 16. Threaded hole; 17. Bolt. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example: Figure 1-5As shown, this utility model provides an auxiliary device for welding steel cages of tunnel segments in subway engineering. It includes a workbench 1, a fixed frame 2 fixedly mounted on the workbench 1, a fixed frame 3 fixedly mounted at the bottom of the fixed frame 2, a sliding frame 4 slidably mounted inside the fixed frame 2, and two mirror-distributed first sliders 5 slidably mounted inside both the sliding frame 4 and the fixed frame 3. Support rods 7 are fixedly mounted on both sides of the four first sliders 5, and multiple equally spaced support wheels 8 are slidably sleeved on each of the four support rods 7. Sliding plates 6 are fixedly mounted on the sides of the two first sliders 5 located in the fixed frame 3 that are far apart from each other, and the sliding plates 6 are inserted through the fixed frame 3 and the sliding frame 4. The two first sliders 5 located in the sliding frame 4 are slidably mounted on the corresponding sliding plates 6. A bidirectional screw 9 is rotatably mounted inside the fixed frame 2, and the bidirectional screw 9 is threaded into the two... Inside each sliding plate 6, a first knob 10 is fixedly installed at one end of a bidirectional lead screw 9. A lifting assembly 15 is installed on the fixed frame 2. The first knob 10 can be used to drive the bidirectional lead screw 9 to rotate according to the length of the outer and inner arc ribs. The bidirectional lead screw 9 drives the two sliding plates 6 to slide towards or away from each other. The two sliding plates 6 respectively drive the corresponding two first sliders 5 to slide within the fixed frame 3 and the sliding frame 4. The first sliders 5 drive the support rods 7 to slide and adjust the spacing. The inner arc rib can be placed on the two support wheels 8 on the support rods 7 on the first sliders 5 installed in the sliding frame 4. The outer arc rib can be placed on the two support wheels 8 on the support rods 7 on the first sliders 5 installed in the fixed frame 3. The lifting assembly 15 can be used to drive the sliding frame 4 to descend. The sliding frame 4 drives the inner arc rib to descend, so that the two ends of the inner arc rib contact the two ends of the corresponding outer arc rib, which is convenient for subsequent welding.

[0019] A second slider 12 is slidably installed in the middle of both the fixed frame 3 and the sliding frame 4. A pressure rod 11 is fixedly installed on both sides of the two second sliders 12. A threaded rod 13 is rotatably installed in the middle of both the fixed frame 3 and the sliding frame 4, and the threaded rod 13 is threaded into the corresponding second slider 12. A second knob 14 is fixedly installed at the ends of the two threaded rods 13 that are far apart from each other. After the inner arc rib and the outer arc rib are placed on the support wheel 8 on the support rod 7, the second knob 14 can be used to drive the threaded rod 13 to rotate. The threaded rod 13 drives the second slider 12 to descend. The second slider 12 drives the pressure rod 11 to descend and press and fix the inner arc rib and the outer arc rib.

[0020] The lifting assembly 15 includes two symmetrically distributed lead screws 151, which are rotatably mounted on both sides of the fixed frame 2. The lead screws 151 are threaded into both ends of the sliding frame 4. A drive shaft 152 is rotatably mounted on the top of the fixed frame 2. A third knob 155 is fixedly mounted on one end of the drive shaft 152. Two first bevel gears 153 are fixedly mounted on the drive shaft 152. A second bevel gear 154 is fixedly mounted on the top of each of the two lead screws 151. The second bevel gear 154 meshes with the corresponding first bevel gear 153. The third knob 155 can be used to drive the drive shaft 152 to rotate. The drive shaft 152 drives the first bevel gear 153 to rotate. The first bevel gear 153 drives the second bevel gear 154 to rotate. The second bevel gear 154 drives the lead screw 151 to rotate. The lead screw 151 drives the sliding frame 4 to slide and lift within the fixed frame 2.

[0021] Each of the four support rods 7 has a limiting groove 701 on both sides, and the support wheel 8 can slide along the limiting groove 701. Each of the four support rods 7 has multiple threaded holes 16 evenly distributed in one of the limiting grooves 701. Each of the multiple support wheels 8 has a bolt 17 threaded into one side, and one end of the bolt 17 can be threaded into the corresponding threaded hole 16. According to actual needs, the corresponding number of support wheels 8 can be slidably sleeved on the corresponding support rod 7 along the limiting groove 701, so that one end of the bolt 17 on the support wheel 8 is threaded into the corresponding threaded hole 16, and the bolt 17 is tightened to fix the support wheel 8.

[0022] Working principle: Based on the lengths of the outer and inner arc ribs, the first knob 10 drives the bidirectional lead screw 9 to rotate. The bidirectional lead screw 9 drives the two sliding plates 6 to slide towards or away from each other. The two sliding plates 6 respectively drive the corresponding two first sliders 5 to slide within the fixed frame 3 and the sliding frame 4. The first sliders 5 drive the support rods 7 to slide and adjust the spacing. Then, according to actual needs, the corresponding number of support wheels 8 are slidably sleeved on the corresponding support rods 7 along the limiting groove 701, so that one end of the bolt 17 on the support wheel 8 is threaded into the corresponding threaded hole 16, and the bolt 17 is tightened to fix the support wheel 8.

[0023] The inner arc rib is placed on the two corresponding support wheels 8 on the support rod 7 of the first slider 5 installed in the sliding frame 4, and the outer arc rib is placed on the two corresponding support wheels 8 on the support rod 7 of the first slider 5 installed in the fixed frame 3. Then, the second knob 14 drives the threaded rod 13 to rotate, the threaded rod 13 drives the second slider 12 to descend, and the second slider 12 drives the pressure rod 11 to descend to press and fix the inner and outer arc ribs. Then, the third knob 155 drives the drive shaft 152 to rotate, the drive shaft 152 drives the first bevel gear 153 to rotate, the first bevel gear 153 drives the second bevel gear 154 to rotate, the second bevel gear 154 drives the lead screw 151 to rotate, and the lead screw 151 drives the sliding frame 4 to slide and descend in the fixed frame 2, so that the two ends of the inner arc rib contact the two ends of the corresponding outer arc rib, which facilitates subsequent welding.

[0024] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A reinforcing cage welding processing auxiliary device for subway engineering shield segment, comprising a workbench (1), characterized in that: A fixed frame (2) is fixedly installed on the workbench (1). A fixed frame (3) is fixedly installed at the bottom of the fixed frame (2). A sliding frame (4) is slidably installed inside the fixed frame (2). Two mirror-distributed first sliders (5) are slidably installed inside both the sliding frame (4) and the fixed frame (3). Support rods (7) are fixedly installed on both sides of the four first sliders (5). Multiple support wheels (8) are equidistantly distributed on each of the four support rods (7). The four first sliders (5) located in the fixed frame (3) are... Two first sliders (5) are fixedly mounted on opposite sides of each other, and the sliding plates (6) are inserted through the fixed frame (3) and the sliding frame (4). The two first sliders (5) in the sliding frame (4) are slidably mounted on the corresponding sliding plates (6). A bidirectional screw (9) is rotatably mounted in the fixed frame (2), and the bidirectional screw (9) is threaded into the two sliding plates (6). A first knob (10) is fixedly mounted on one end of the bidirectional screw (9). A lifting assembly (15) is mounted on the fixed frame (2).

2. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 1, characterized in that, The fixed frame (3) and the sliding frame (4) are each slidably installed with a second slider (12) in the middle, and pressure rods (11) are fixedly installed on both sides of the two second sliders (12).

3. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 1, characterized in that, Both the fixed frame (3) and the sliding frame (4) are rotatably installed with threaded rods (13), and the threaded rods (13) are threadedly inserted into the corresponding second sliders (12). The ends of the two threaded rods (13) that are far apart from each other are fixedly installed with second knobs (14).

4. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 1, characterized in that, The lifting assembly (15) includes two symmetrically distributed lead screws (151), which are rotatably mounted on both sides of the fixed frame (2) and threaded into both ends of the sliding frame (4).

5. The auxiliary device for welding steel cages of tunnel lining segments in subway engineering as described in claim 1, characterized in that, The top of the fixed frame (2) is rotatably mounted with a drive shaft (152), one end of the drive shaft (152) is fixedly mounted with a third knob (155), and two first bevel gears (153) are fixedly mounted on the drive shaft (152).

6. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 4, characterized in that, The top ends of both lead screws (151) are fixedly equipped with second bevel gears (154), and the second bevel gears (154) mesh with the corresponding first bevel gears (153).

7. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 1, characterized in that, Each of the four support rods (7) has a limiting groove (701) on both sides, and the support wheel (8) can slide along the limiting groove (701). Each of the four support rods (7) has a plurality of threaded holes (16) evenly distributed in one of the limiting grooves (701).

8. The reinforcing cage welding process auxiliary device for a subway engineering shield segment according to claim 1, characterized in that, Each of the multiple support wheels (8) has a bolt (17) threaded into one side, and one end of the bolt (17) can be threaded into the corresponding threaded hole (16).

Citation Information

Patent Citations

  • Auxiliary welding device for shield segment reinforcement cage

    CN221270201U