A tunnel I-beam clamp structure

Abstract

This utility model provides a clamping structure for tunnel H-beams: it includes a support frame, a clamping claw fixing bracket connected to the support frame via a slewing bearing, a clamping claw structure installed under the clamping claw fixing bracket, and a driving structure for opening and closing the clamping claw structure installed under the clamping claw fixing bracket. This utility model is rationally designed; by opening and closing the fixed and movable clamping claws, the H-beams are clamped. The independent hydraulic cylinder control of the side movable claw provides greater clamping force, ensuring the H-beams do not fall off during handling, reducing construction risks. The slewing bearing allows for flexible rotation at multiple angles when clamping the H-beams, and can promptly address situations where insufficient angle is required to complete the task, significantly shortening the construction cycle and reducing construction costs.

Description

Technical Field

[0001] This utility model relates to a tunnel I-beam clamp structure. Background Technology

[0002] In tunnel construction, I-beams serve as crucial support structures, and their efficient clamping and safe handling directly impact construction efficiency and operational safety. Current technologies for tunnel I-beam clamping devices face multiple challenges: traditional clamping equipment generally suffers from insufficient specification adaptability, making it difficult to stably clamp I-beams of different sizes. This is particularly problematic in large-section tunnel construction, where the risk of I-beam loosening or detachment is high, threatening construction safety. Furthermore, some devices have cumbersome operation procedures, requiring multiple steps for locking various parts, which is time-consuming and labor-intensive, failing to meet the demands for high-efficiency tunnel construction. In addition, some clamping structures have design flaws, such as connectors being susceptible to concrete contamination or corrosion, leading to increased maintenance costs and shortened service life.

[0003] Specifically, the existing technology has the following shortcomings: 1. Unstable clamping: It is difficult to achieve stable clamping through structural adjustments, which makes the I-beams prone to loosening or displacement during construction, posing safety hazards; 2. Poor flexibility and inability to operate at multiple angles: The I-beams can only be clamped and supported according to the angle of the excavator, and cannot be flexibly adjusted according to material characteristics and customer needs, which limits the further improvement of production efficiency and product quality. Utility Model Content

[0004] In view of this, the purpose of this utility model is to overcome the shortcomings of the prior art and provide a tunnel I-beam clamp structure.

[0005] This utility model is implemented using the following scheme: a tunnel I-beam clamping structure: including a support frame, a clamping fixing bracket connected to the support frame via a slewing bearing seat, a clamping structure installed under the clamping fixing bracket, and a driving structure for driving the clamping structure to open and close installed under the clamping fixing bracket.

[0006] Furthermore, the gripper fixing bracket includes a connecting top plate, which is installed under the support frame via a slewing bearing seat. Fixing plates are symmetrically arranged on the left and right sides below the connecting top plate. The gripper structure includes a fixed gripper and a movable gripper. The fixed gripper is fixedly installed between the two fixing plates on the rear side, and the movable gripper is movably connected between the two fixing plates and on the front side of the fixed gripper.

[0007] Furthermore, a fixing rod is horizontally placed between the two fixing plates on the rear side. The fixing claw includes L-shaped fixing plates symmetrically arranged on the fixing rod. The horizontal part of the fixing plate is at the bottom and the vertical part is at the top. The end of the horizontal part of the fixing plate faces the front side. The end cap of the vertical part of the fixing plate is fixed to the fixing rod. An L-shaped fixing side plate is provided on the lower edge of the fixing plate corresponding to the fixing plate on the same side.

[0008] Furthermore, the movable gripper includes a rotating rod, which is rotatably connected between two fixed plates. Side movable grippers are symmetrically mounted on the rotating rod. Each side movable gripper includes symmetrically arranged L-shaped movable clamping plates, with the horizontal part of the movable clamping plate at the bottom and the vertical part at the top. The end of the horizontal part of the movable clamping plate faces the end of the horizontal part of the fixed clamping plate.

[0009] Furthermore, a reinforcing frame is horizontally placed between the two movable clamping plates on the same side of the movable claw, and between the fixed clamping plate and the fixed side clamping plate on the same side. A clamping connecting plate is provided between the horizontal ends of the two movable clamping plates in the same side of the movable claw, and between the horizontal ends of the fixed clamping plate and the fixed side clamping plate on the same side.

[0010] Furthermore, reinforcing plates are provided between the front and rear ends of the two fixed plates. The driving structure includes hydraulic cylinders arranged symmetrically on the left and right. The two hydraulic cylinders are hinged to the inner side of the reinforcing plate located on the front side, and the telescopic ends of the two hydraulic cylinders are hinged to the side movable claws on the same side.

[0011] Furthermore, the slewing bearing includes an inner supporting ring and an outer supporting ring. The inner supporting ring is rotatably connected to the outer supporting ring. An upper connecting ring block is provided on the upper part of the inner supporting ring and is fixed to the support frame. A lower connecting ring block is provided on the lower part of the outer supporting ring and is fixed to the connecting top plate. A supporting housing shell covering the outer supporting ring is provided on the outer periphery of the upper connecting ring block. An annular track for supporting the outer supporting ring is provided inside the supporting housing shell. The outer edge of the lower surface of the outer supporting ring abuts against the annular track.

[0012] Furthermore, a turbine is installed on the outer periphery of the outer ring of the support, and a worm gear that cooperates with the turbine is rotatably connected to the left and right sides of the outer ring of the support housing. A worm motor that drives the worm gear to rotate is installed in the support housing.

[0013] Furthermore, a rotary joint that mates with a hydraulic cylinder is installed on the middle part of the support frame. The fixing part of the rotary joint is installed on the middle part of the support frame, and the rotating part of the rotary joint extends into the rotary bearing seat and is connected to the connecting top plate via a connecting rod. The oil inlet on the fixing part of the rotary joint is connected to an external oil tank via a pipeline, and the oil outlet on the rotating part of the rotary joint is connected to the corresponding hydraulic cylinder via a pipeline.

[0014] Furthermore, the support frame includes a horizontally arranged support top plate, which is connected to the connecting top plate via a slewing bearing seat. The upper connecting ring block is fixed under the support top plate, and the fixing component of the slewing joint is installed on the support top plate. An excavator fixing frame for connecting to the excavator equipment is provided on the upper part of the support top plate.

[0015] Compared with the prior art, the present invention has the following advantages: it is reasonably designed, and the I-beam is clamped by opening and closing the fixed and movable jaws. The independent hydraulic cylinder control of the side movable jaw provides greater clamping force, ensuring that the I-beam does not fall off during transportation and reducing construction risks. The slewing bearing allows for flexible rotation at multiple angles when clamping the I-beam, and can promptly complete tasks that cannot be completed due to insufficient angle during operation, greatly shortening the construction cycle and reducing construction costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ; Figure 2 This is a side view of the structure of this utility model; Figure 3 for Figure 2 Schematic diagram of the AA section structure; Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure of the middle BB; Figure 5 for Figure 3 Enlarged structural diagram at point C; Figure 6 for Figure 4 Enlarged structural diagram at point D; Figure 7 This is a schematic diagram of the structure of the present invention. Figure 2 ; Figure 8 This is a schematic diagram of the rotary joint structure of this utility model.

[0017] In the diagram: 1-Support frame; 2-Slewing bearing seat; 3-Gripper fixing bracket; 4-Gripper structure; 5-Drive structure; 6-Connecting top plate; 7-Fixing plate; 8-Fixing gripper; 9-Moving gripper; 10-Fixing rod; 11-Fixing clamping plate; 12-Fixing side clamping plate; 13-Rotating rod; 14-Side movable gripper; 15-Moving clamping plate; 16-Reinforcing frame; 17-Clamping connecting plate; 18-Reinforcing plate; 19-Hydraulic cylinder; 20-Support inner ring; 2 1-Outer support ring; 22-Upper connecting ring block; 23-Lower connecting ring block; 24-Support seat housing; 25-Annular track; 26-Turbine; 27-Worm gear; 28-Worm gear motor; 29-Rotary joint; 30-Fixed component; 31-Rotating component; 32-Oil inlet pipe; 33-Shaft; 34-Fixed flange; 35-Rotating sleeve; 36-Annular oil groove; 37-Oil outlet pipe; 38-Connecting rod; 39-Support top plate; 40-Excavator mounting frame. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] It should be noted that the following detailed descriptions are exemplary and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] like Figure 1-8 As shown, a tunnel H-beam clamping structure includes a support frame 1, a clamping fixing bracket 3 connected to the support frame via a slewing bearing 2, a clamping structure 4 installed under the clamping fixing bracket, and a driving structure 5 for opening and closing the clamping structure installed under the clamping fixing bracket. In use, the support frame is fixed to the excavator, and the slewing bearing 2 drives the clamping fixing bracket to rotate, thereby achieving multi-angle clamping operation. At the same time, the driving structure drives the clamping structure to open and close, so that H-beams of different sizes can be firmly clamped.

[0022] In this embodiment, to achieve the installation of the gripper structure, the specific structure of the gripper fixing bracket is as follows: the gripper fixing bracket includes a connecting top plate 6, which is installed under the support frame via a slewing bearing seat. Fixing plates 7 are symmetrically arranged on the left and right sides below the connecting top plate. The gripper structure includes a fixed gripper 8 and a movable gripper 9. The fixed gripper is fixedly installed between the two fixing plates on the rear side, and the movable gripper is movably connected between the two fixing plates and on the front side of the fixed gripper. In use, the opening and closing of the gripper structure is achieved by the opening and closing of the movable gripper and the fixed gripper, thereby achieving stable clamping of the I-beam.

[0023] In this embodiment, the specific structure of the gripper structure is as follows: a fixing rod 10 is horizontally placed between the two fixing plates on the rear side, and the end of the fixing rod is fixedly connected to the fixing plate on the same side. The fixing gripper includes L-shaped fixing plates 11 symmetrically arranged on the fixing rod, with the horizontal part of the fixing plate at the bottom and the vertical part at the top. The end of the horizontal part of the fixing plate faces forward, and the end cap of the vertical part of the fixing plate is fixed to the fixing rod. An L-shaped fixing side plate 12 is provided on the lower edge of the fixing plate corresponding to the fixing plate on the same side. The fixing plates and the fixing side plates on the same side form a side fixing gripper. The two side fixing grippers... The claws together form a fixed gripper; while the structure of the movable gripper is as follows: the movable gripper includes a rotating rod 13, which is rotatably connected between two fixed plates. Side movable claws 14 are symmetrically installed on the rotating rod. The side movable claws include symmetrically arranged L-shaped movable clamping plates 15, with the horizontal part of the movable clamping plate at the bottom and the vertical part at the top. The end of the horizontal part of the movable clamping plate faces the end of the horizontal part of the fixed clamping plate. That is, the side movable claws and the side fixed claws are arranged in a one-to-one correspondence. The opening and closing of the gripper structure is realized by the swinging of the side movable claws. More specifically, the vertical part of the movable clamping plate is an arc shape with a radius of curvature.

[0024] In this embodiment, for the sake of reasonable design, a reinforcing frame 16 is horizontally placed between the two movable clamping plates on the same side movable claw and between the fixed clamping plate and the fixed side clamping plate on the same side. That is, the two movable clamping plates on the same side movable claw are fixedly connected by the reinforcing frame to form a side movable claw, and the fixed clamping plate and the fixed side clamping plate on the same side are fixedly connected by the reinforcing frame to form a side fixed claw. A clamping connecting plate 17 is provided between the horizontal ends of the two movable clamping plates in the same side movable claw and between the horizontal ends of the fixed clamping plate and the fixed side clamping plate on the same side. That is, the horizontal ends of the side movable claw and the side fixed claw are closed, which facilitates the stability of the overall structure and the clamping of the I-beam. At the same time, the two side movable claws can be connected by a synchronous rod.

[0025] In this embodiment, in order to drive the swing of the side movable claw, a reinforcing plate 18 is provided between the front end and the rear end of the two fixed plates, so that the connecting top plate, the two fixed plates, and the two reinforcing plates are connected as a whole. The driving structure includes hydraulic cylinders 19 arranged symmetrically on the left and right. The cylinder sleeve ends of the two hydraulic cylinders are hinged to the inner side of the reinforcing plate located on the front side, and the telescopic ends of the two hydraulic cylinders are hinged to the side movable claw on the same side. Alternatively, the telescopic ends of the hydraulic cylinders can be hinged between two movable clamping plates inside the side movable claw on the same side, and the swing of the side movable claw is driven by the extension and retraction of the hydraulic cylinders.

[0026] In this embodiment, to achieve the rotation of the gripper fixing bracket, the rotary support includes an inner support ring 20 and an outer support ring 21. The inner support ring is rotatably connected to the outer support ring. An upper connecting ring block 22 is provided on the upper part of the inner support ring, and the upper connecting ring block is fixed to the support frame by bolts. A lower connecting ring block 23 is provided on the lower part of the outer support ring, and the lower connecting ring block is fixed to the connecting top plate by bolts. A support housing shell 24 covering the outer support ring is provided on the outer periphery of the upper connecting ring block. An annular track 25 for supporting the outer support ring is provided inside the support housing shell. The outer edge of the lower surface of the outer support ring abuts against the annular track, that is, the outer edge of the outer support ring is supported by the annular track inside the support housing shell. Then, the rotation of the gripper fixing bracket is achieved by the relative rotation of the inner support ring and the outer support ring.

[0027] In this embodiment, in order to drive the outer ring of the support to rotate, a turbine 26 is installed on the outer periphery of the outer ring of the support. The support housing is rotatably connected to the left and right sides of the outer ring of the support and a worm gear 27 that cooperates with the turbine. The support housing is equipped with a worm motor 28 that drives the worm gear to rotate. In use, the rotation of the worm motor drives the worm and turbine to rotate, thereby driving the outer ring of the support to rotate, and thus realizing the rotation of the gripper fixing bracket.

[0028] In this embodiment, to achieve the connection of the hydraulic cylinder oil circuit when the gripper fixing bracket rotates, a rotary joint 29 cooperating with the hydraulic cylinder is installed on the middle part of the support frame. The rotary joint is prior art, and its structure can be as follows: the rotary joint includes a fixed component 30 and a rotating component 31. The fixed component is a rotating shaft 33 with an internal oil inlet pipe 32. A fixed flange 34 is provided at the upper end of the rotating shaft. The inlet of the oil inlet pipe is located at the upper part of the rotating shaft and above the fixed flange. The outlet of the oil inlet pipe is located on the lower outer wall of the rotating shaft. The rotating component is a rotating sleeve 35, which is sleeved outside the lower end of the rotating shaft. An annular oil groove 36 is provided inside the rotating sleeve corresponding to the outlet of the oil inlet pipe. An oil outlet pipe 37 communicating with the annular oil groove is provided on the side of the rotating sleeve. The oil outlet pipe outputs... The outlet is located on the lower end face of the rotating sleeve. Of course, a limiting plate can be provided on the rotating lower end to prevent the rotating sleeve from detaching. The number of oil inlet pipes corresponds to the number of hydraulic cylinders, and the number of annular oil grooves corresponds to the number of oil inlet pipes. Each oil inlet pipe and annular oil groove is set one-to-one. Of course, since the adapter is existing technology, it will not be described in detail. The fixed part of the rotary joint is installed on the middle of the support frame. The rotating part of the rotary joint extends into the middle of the inner ring of the rotary support seat and is connected to the connecting top plate through the connecting rod 38, so that the rotating part and the connecting top plate rotate synchronously. The oil inlet on the fixed part of the rotary joint is connected to the external oil tank through a pipe, and the oil outlet on the rotating part of the rotary joint is connected to the corresponding hydraulic cylinder through a pipe.

[0029] In this embodiment, for the sake of reasonable design, the support frame includes a horizontally arranged support top plate 39, which is connected to the connecting top plate via a slewing bearing seat. The upper connecting ring block is fixed under the support top plate, and the fixing component of the slewing joint is installed on the support top plate. An excavator fixing frame 40 connected to the excavator equipment is provided on the upper part of the support top plate.

[0030] Unless otherwise stated, if any of the technical solutions disclosed in this utility model discloses a numerical range, then the disclosed numerical range is a preferred numerical range. Any person skilled in the art should understand that the preferred numerical range is merely one among many feasible numerical values ​​that has a more obvious or representative technical effect. Because there are many numerical values, it is impossible to list them all. Therefore, this utility model discloses only some numerical values ​​to illustrate the technical solutions of this utility model. Furthermore, the numerical values ​​listed above should not constitute a limitation on the scope of protection of this utility model.

[0031] If the terms "first" or "second" are used in this document to specify components, those skilled in the art should know that the use of "first" or "second" is merely for the purpose of distinguishing components in description, and unless otherwise stated, the above terms have no special meaning.

[0032] If this utility model discloses or relates to mutually fixedly connected parts or structural components, then unless otherwise stated, a fixed connection can be understood as: a detachable fixed connection (e.g., using bolts or screws), or a non-detachable fixed connection (e.g., riveting, welding). Of course, mutually fixed connections can also be replaced by an integral structure (e.g., manufactured by integral molding using a casting process) (except where it is obviously impossible to use an integral molding process).

[0033] Furthermore, the orientations or positional relationships indicated by terms such as "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used in any of the technical solutions disclosed in this utility model are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing this patent. They are not intended to 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 patent. In addition, unless otherwise stated, the terms used to indicate shape in any of the technical solutions disclosed in this utility model include shapes that are similar to, close to, or approximate with it.

[0034] Any component provided by this utility model can be assembled from multiple individual components, or it can be a single component manufactured by a one-piece molding process.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. A tunnel H-beam clamp jaw structure, characterized by: It includes a support frame, under which a gripper fixing bracket is connected via a slewing bearing seat, a gripper structure is installed under the gripper fixing bracket, and a drive structure for driving the gripper structure to open and close is installed under the gripper fixing bracket.

2. The tunnel flange structure according to claim 1, characterized in that: The gripper fixing bracket includes a connecting top plate, which is installed under the support frame via a slewing bearing seat. Fixing plates are symmetrically arranged on the left and right sides below the connecting top plate. The gripper structure includes a fixed gripper and a movable gripper. The fixed gripper is fixedly installed between the two fixing plates on the rear side, and the movable gripper is movably connected between the two fixing plates and on the front side of the fixed gripper.

3. The tunnel flange structure according to claim 2, wherein: A fixing rod is horizontally placed between the two fixing plates on the rear side. The fixing claw includes L-shaped fixing plates symmetrically arranged on the fixing rod. The horizontal part of the fixing plate is at the bottom and the vertical part is at the top. The end of the horizontal part of the fixing plate faces forward. The end cap of the vertical part of the fixing plate is fixed to the fixing rod. An L-shaped fixing side plate is provided on the lower edge of the fixing plate corresponding to the fixing plate on the same side.

4. The tunnel flange structure according to claim 3, wherein: The movable gripper includes a rotating rod, which is rotatably connected between two fixed plates. Side movable grippers are symmetrically installed on the rotating rod. Each side movable gripper includes symmetrically arranged L-shaped movable clamping plates, with the horizontal part of the movable clamping plate at the bottom and the vertical part at the top. The end of the horizontal part of the movable clamping plate faces the end of the horizontal part of the fixed clamping plate.

5. The tunnel flange structure according to claim 4, wherein: A reinforcing frame is horizontally placed between the two movable clamping plates on the same side of the movable claw, and between the fixed clamping plate and the fixed side clamping plate on the same side. A clamping connecting plate is provided between the horizontal ends of the two movable clamping plates in the same side of the movable claw, and between the horizontal ends of the fixed clamping plate and the fixed side clamping plate on the same side.

6. The tunnel flange structure according to claim 4, wherein: Reinforcing plates are provided between the front and rear ends of the two fixed plates. The driving structure includes hydraulic cylinders arranged symmetrically on the left and right. The two hydraulic cylinders are hinged to the inner side of the reinforcing plate located on the front side, and the telescopic ends of the two hydraulic cylinders are hinged to the side movable claws on the same side.

7. The tunneling I-beam gripper structure of claim 2, wherein: The slewing bearing includes an inner support ring and an outer support ring. The inner support ring is rotatably connected to the outer support ring. An upper connecting ring block is provided on the upper part of the inner support ring and is fixed to the bottom of the support frame. A lower connecting ring block is provided on the lower part of the outer support ring and is fixed to the connecting top plate. A support housing shell covering the outer support ring is provided on the outer periphery of the upper connecting ring block. An annular track for supporting the outer support ring is provided inside the support housing shell. The outer edge of the lower surface of the outer support ring abuts against the annular track.

8. The tunnel flange structure according to claim 7, characterized in that: A turbine is installed on the outer periphery of the outer ring of the support. A worm gear that cooperates with the turbine is rotatably connected to the left and right sides of the outer ring of the support housing. A worm motor that drives the worm gear to rotate is installed in the support housing.

9. The tunnel flange structure according to claim 7, wherein: A rotary joint that mates with a hydraulic cylinder is installed on the middle part of the support frame. The fixed part of the rotary joint is installed on the middle part of the support frame. The rotating part of the rotary joint extends into the rotary bearing seat and is connected to the connecting top plate via a connecting rod. The oil inlet on the fixed part of the rotary joint is connected to an external oil tank via a pipeline, and the oil outlet on the rotating part of the rotary joint is connected to the corresponding hydraulic cylinder via a pipeline.

10. The tunnel flange structure according to claim 9, characterized in that: The support frame comprises a horizontally arranged support top plate, which is connected with the connecting top plate through a rotary bearing seat, the upper connecting ring block is fixed below the support top plate, the fixed part of the rotary joint is installed on the support top plate, and the upper portion of the support top plate is provided with an excavator fixing frame connected with the excavator equipment.

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