A bending device for large diameter shield seal joint inspection

Abstract

The utility model relates to a kind of bending device for large-diameter shield sealing joint inspection.Currently, large-diameter shield sealing joint inspection is manually intensive, and the inspection efficiency is low.The utility model includes test bed, several supports and base;A plurality of roller groups are provided on the test bed, and the to-be-tested sealing member is provided between the plurality of roller groups, and a test hole is provided between the roller groups on the test bed;Several supports are provided between the test bed and the base;The base includes a counterweight plate, a moving mechanism and a pushing mechanism, the counterweight plate is arranged below the support, the moving mechanism is arranged at the bottom of the counterweight plate, the pushing mechanism is arranged at the top of the counterweight plate, and is aligned with the test hole.The utility model drives the punch to pop out to bend the joint by electric push rod, which can reduce manual input and improve the degree of automation of inspection, thereby greatly improving the inspection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sealing joint inspection technology, specifically to a bending device for inspecting sealing joints of large-diameter shield tunnels. Background Technology

[0002] Whether it's the main drive section or the articulated section, the sealing components used in tunnel boring machines have relatively large diameters, typically ranging from several meters to over ten meters. During the production process, these sealing components are usually manufactured by first producing several sealing component segments of a certain length, and then splicing and vulcanizing them end to end. Therefore, the quality inspection of the sealing component joints is one of the more important tasks in the quality inspection stage of this type of sealing component.

[0003] Currently, the inspection of large-diameter sealing joints generally adopts the method of manual bending and observation. Since most of the materials of large-diameter shield tunnel sealing parts are polyurethane, which has high hardness and strength, the traditional manual bending inspection requires at least 3 people: two people to bend the sealing parts and one person to inspect the joint after bending. This inspection method requires high physical strength from the bending personnel and has low inspection efficiency. When production tasks are concentrated, even more bending and inspection personnel may be needed to avoid affecting the delivery schedule.

[0004] Therefore, there is an urgent need for a bending device that requires less manual labor and has high inspection efficiency for inspecting sealing joints of large-diameter shield tunnels. Summary of the Invention

[0005] The purpose of this invention is to provide a bending device for inspecting large-diameter shield tunnel sealing joints, so as to at least solve the problems of high manual input and low inspection efficiency in the current inspection of large-diameter shield tunnel sealing joints.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A bending device for inspecting sealing joints of large-diameter shield tunnels includes an inspection table, several supports, and a base.

[0008] The inspection table is provided with multiple roller groups, and the seal to be tested is disposed between the multiple roller groups. Inspection holes are opened on the inspection table between the roller groups.

[0009] Several of the aforementioned supports are disposed between the inspection table and the base;

[0010] The base includes a counterweight plate, a moving mechanism, and a pushing mechanism. The counterweight plate is located below the support, the moving mechanism is located at the bottom of the counterweight plate, and the pushing mechanism is located at the top of the counterweight plate and aligned with the inspection hole.

[0011] Furthermore, the roller assembly includes an electric roller and a stationary roller assembly, with the stationary roller assembly disposed on the inspection table and the electric roller disposed directly above the stationary roller assembly.

[0012] Furthermore, one end of the electric roller is hinged to the inspection table surface, and the other end is fixedly connected to the inspection table surface.

[0013] Furthermore, a mounting plate is provided on the top of the counterweight plate, and the pushing mechanism is mounted on the mounting plate.

[0014] Furthermore, the pushing mechanism includes a motor and an electric push rod, both of which are disposed on the upper end face of the mounting plate, and the electric push rod is aligned with the inspection hole.

[0015] Furthermore, a punch is provided at the top of the electric actuator.

[0016] Furthermore, baffles are provided on both sides of the punch.

[0017] Furthermore, the moving mechanism includes multiple casters, which are distributed at the four corners of the bottom of the counterweight plate.

[0018] Furthermore, a control box is mounted on one of the brackets.

[0019] Furthermore, a support rod is provided at the bottom of the control box, and the support rod is mounted on the bracket.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model provides a bending device for inspecting large-diameter shield tunnel sealing joints. The device uses an electric push rod to drive a punch to bend the joint, which can reduce manual input, significantly reduce labor costs, and improve the degree of automation of inspection, thereby greatly improving inspection efficiency and making the inspection quality more stable and reliable.

[0022] 2. The electric roller of this utility model is fixed to the inspection table on one side by a hinge and on the other side by bolts. When the seal to be tested is replaced, only one bolt needs to be removed and the hinge flipped over to replace the seal, thus simplifying the replacement process and improving the replacement efficiency. Furthermore, the seal to be tested is clamped between the electric roller and the stationary roller assembly. When the seal to be tested is in operation, the rolling contact surfaces on both the top and bottom reduce the wear on the seal to be tested. When the joint is pushed out and bent, the rolling structure can better follow the movement of the seal to be tested without affecting the bending and recovery of the seal to be tested. Moreover, this utility model can meet the inspection of joints with different structural forms and has strong versatility. Attached Figure Description

[0023] 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 embodiments can be obtained from these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a top view of the present invention after the sealing element has been installed;

[0026] The diagram is labeled as follows:

[0027] 1-Electric roller, 2-Inspection table, 3-Control box, 4-Bracket, 5-Counterweight plate, 6-Wheel caster, 7-Motor, 8-Electric push rod, 9-Punch, 10-Stationary roller assembly, 11-Seal to be tested, 12-Hinge, 13-Baffle. Detailed Implementation

[0028] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0029] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Furthermore, in the description of this utility model, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance. Of course, such terms can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in a sequence other than those illustrated or described herein.

[0032] Example:

[0033] This embodiment provides a bending device for inspecting sealing joints of large-diameter shield tunnels, including an inspection platform 2, four supports 4 and a base, which can meet the inspection needs of sealing joints of different structures and specifications of shield tunneling machines, and has strong versatility.

[0034] Specifically, the inspection table 2 is a cuboid, and two roller groups are provided on the inspection table 2. The seal to be tested 11 is disposed between the two roller groups. An inspection hole is provided on the inspection table 2 between the roller groups and in the middle of the inspection table 2. The inspection hole facilitates bending of the seal to be tested. The bracket 4 is a cuboid, and the bracket 4 is vertically disposed between the inspection table 2 and the base. The bracket 4 connects and supports the inspection table 2 and the base.

[0035] The roller assembly includes an electric roller 1 and a stationary roller assembly 10. The stationary roller assembly 10 is fixed on the inspection table 2 and includes multiple parallel rollers. The electric roller 1 is positioned directly above the stationary roller assembly 10. In this embodiment, the electric roller 1 has a built-in drive and is of the TDY type. In other embodiments, the electric roller 1 may be of other types.

[0036] In this embodiment, the seal to be tested 11 is placed between the electric roller 1 and the stationary roller group 10. When the seal to be tested 11 is running, the rolling contact surfaces at both the top and bottom can reduce the wear of the seal to be tested 11. When the joint is pushed out and bent, the rolling structure can make the seal to be tested 11 move better, so as not to affect the bending and recovery of the seal to be tested 11.

[0037] In this embodiment, the electric roller 1 is connected to a first support plate and a second support plate at both ends. The first support plate has a rectangular cross-section, and the second support plate has an L-shaped cross-section. The bottom of the first support plate is welded and fixed to the hinge 12. The hinge 12 is fixed to the inspection table 2 by bolts. The bottom of the second support plate is fixed to the inspection table 2 by bolts. Thus, one end of the electric roller 1 is hinged to the inspection table 2 by the hinge 12, and the other end is fixed to the inspection table 2 by bolts. When the seal to be tested 11 is replaced, only the bolts on one side of the electric roller 1 need to be removed, and then the hinge 12 can be flipped to replace the seal to be tested 11, thereby simplifying the replacement process and improving the replacement efficiency.

[0038] At the start of the inspection, remove the bolt on one side of the electric roller 1, flip the hinge 12, place the seal to be tested 11 on the stationary roller group 10, flip the hinge 12 again, clamp the seal to be tested 11 between the electric roller 1 and the stationary roller group 10, and tighten the bolt. When the seal to be tested 11 is clamped, there will be a certain amount of compression to increase friction and prevent the joint from slipping during operation.

[0039] Specifically, the base includes a counterweight plate 5, a moving mechanism, and a pushing mechanism. The counterweight plate 5 is welded and fixed to the bottom of the bracket 4. The moving mechanism is located at the bottom of the counterweight plate 5, and the pushing mechanism is located at the top of the counterweight plate 5 and aligned with the inspection hole.

[0040] The counterweight plate 5 is a cuboid, and a mounting plate is welded and fixed to the top center of the counterweight plate 5. The mounting plate is also a cuboid, and the pushing mechanism is mounted on the mounting plate.

[0041] In this embodiment, the pushing mechanism includes a motor 7 and an electric push rod 8. The bottoms of both the motor 7 and the electric push rod 8 are fixed to the upper surface of the mounting plate by bolts, and the electric push rod 8 is aligned with the inspection hole. The motor 7 provides power to the electric push rod 8.

[0042] The top of the electric actuator 8 is welded and fixed with a punch 9. The electric actuator 8 provides power to the punch 9, so that the punch 9 bends the seal 11 to be tested. Baffles 13 are provided on both sides of the punch 9. The baffles 13 can limit the seal 11 to be tested and prevent the seal 11 to be tested from falling out during the bending process.

[0043] In this embodiment, the moving mechanism includes four casters 6, which are fixed to the four corners of the bottom of the counterweight plate 5 by bolts, making it easy to move the device. The casters 6 also have a pedal braking mechanism. In other embodiments, other braking mechanisms can be selected for the casters 6.

[0044] Specifically, the top of the bracket 4 is welded and fixed to the four bottom corners of the inspection table 2, and the bottom of the bracket 4 is welded and fixed to the four top corners of the counterweight base plate 5. A control box 3 is fixed to one of the brackets 4 by bolts. The control box 3 is connected to the motor 7 and the electric roller 1 by wires. Thus, the control box 3 can control the operation of the electric push rod 8 and the electric roller 1. The stroke and ejection speed of the electric push rod 8 can be controlled by the control box 3. After one joint is tested, the control box 3 controls the electric roller 1 to start rotating, so that the electric roller 1 drives the seal 11 to be tested to move. The stationary roller group 10 assists the seal 11 to be tested to move until the other joint moves to the center of the inspection table 2, and so on, until all joint positions are tested.

[0045] The bottom of the control box 3 is closely attached to a support rod, one end of which is welded and fixed to the side wall of the bracket 4. The support rod further supports the control box 3 to prevent it from falling.

[0046] This embodiment improves the level of automation in inspection, reduces manual input, significantly improves inspection efficiency, and makes inspection quality more stable and reliable.

[0047] The operation steps in this embodiment are as follows:

[0048] Step 1: Remove all the bolts on one side of the electric roller 1, flip the electric roller 1 along the hinge 12, place the seal to be inspected 11 on the stationary roller group 10, and place the first joint to be inspected in the middle of the inspection table 2, directly facing the punch 9 below.

[0049] Step 2: Flip the motor roller 1 back along the hinge 12, press the seal 11 to be tested between the motor roller 1 and the stationary roller assembly 10, and tighten the bolts.

[0050] Step 3: Set the stroke and speed of the electric push rod 8 on the control box 3, and control the electric push rod 8 to push upward, driving the punch 9 to bend the joint position of the seal 11 to be tested.

[0051] Step 4: The inspector inspects the joint of the seal 11 to be tested, determines whether it is qualified, and marks it.

[0052] Step 5: Control the electric actuator 8 to retract to the initial position via the control box 3.

[0053] Step 6: Control the electric roller 1 to rotate via the control box 3 until the next joint to be inspected is directly above the punch 9.

[0054] Step 7: Repeat steps 3, 4, 5 and 6 until all joints of the seal to be tested are inspected.

[0055] Step 8: Remove all the bolts on one side of the electric roller 1, flip the electric roller 1 along the hinge 12, and take out the inspected seal 11 to complete the inspection.

[0056] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A bending device for inspecting the joints of large-diameter shield tunnel sealing components, characterized in that: It includes an inspection table (2), several supports (4) and a base; The inspection table (2) is provided with multiple roller groups, and the seal to be tested (11) is disposed through the multiple roller groups. Inspection holes are provided on the inspection table (2) between the roller groups. Several of the brackets (4) are disposed between the inspection table (2) and the base; The base includes a counterweight plate (5), a moving mechanism and a pushing mechanism. The counterweight plate (5) is located below the support (4), the moving mechanism is located at the bottom of the counterweight plate (5), and the pushing mechanism is located at the top of the counterweight plate (5) and aligned with the inspection hole.

2. The bending device for inspecting large-diameter shield tunnel sealing joints according to claim 1, characterized in that: The roller assembly includes an electric roller (1) and a stationary roller assembly (10). The stationary roller assembly (10) is disposed on the inspection table (2), and the electric roller (1) is disposed directly above the stationary roller assembly (10).

3. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 2, characterized in that: One end of the electric roller (1) is hinged to the inspection table (2), and the other end is fixedly connected to the inspection table (2).

4. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 1, characterized in that: The counterweight plate (5) is provided with a mounting plate on its top, and the pushing mechanism is provided on the mounting plate.

5. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 4, characterized in that: The pushing mechanism includes a motor (7) and an electric push rod (8), both of which are located on the upper surface of the mounting plate, and the electric push rod (8) is aligned with the inspection hole.

6. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 5, characterized in that: The top of the electric actuator (8) is provided with a punch (9).

7. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 6, characterized in that: Baffles are provided on both sides of the punch (9).

8. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 1, characterized in that: The moving mechanism includes multiple casters (6), which are distributed at the four corners of the bottom of the counterweight plate (5).

9. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 1, characterized in that: One of the brackets (4) is equipped with a control box (3).

10. A bending device for inspecting large-diameter shield tunnel sealing joints according to claim 9, characterized in that: The bottom of the control box (3) is provided with a support rod, which is mounted on the bracket (4).

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