A rotary joint device

Abstract

The utility model discloses a rotary joint device, including assembling machine swivel body and reel subassembly, and the reel subassembly is coiled with the rubber pipe, and the one end of rubber pipe is close to swivel body and realizes fluid communication with swivel body through rotary joint device, and rotary joint device includes integrated block and integrated block support, and integrated block support includes the base plate of back -and -forth structure, and the middle part of base plate is equipped with the rectangular through -hole, and the both ends of base plate top surface are respectively fixedly connected with the lateral support plate of vertical arrangement, and integrated block is assembled between two lateral support plates, and the both ends of integrated block are respectively pivotally connected with two lateral support plates through the rotating pin shaft, and the middle part of integrated block is equipped with a plurality of fluid passageway holes, and the both sides of each fluid passageway hole are symmetrically assembled with the pipe joint subassembly, and the pipe joint subassembly on both sides realizes intercommunication through corresponding fluid passageway hole. The rotary joint device of the application can adapt to the high frequency forward and reverse rotation of swivel body, reduce the bending damage of rubber pipe, and significantly prolong the service life of hydraulic rubber pipe.

Description

Technical Field

[0001] This utility model relates to the field of tunnel boring machine equipment technology, specifically to a rotary joint device. Background Technology

[0002] During tunnel boring machine (TBM) construction, the assembly machine, as a core component, is driven by a hydraulic system to complete the segment assembly operation. The forward and reverse rotation of its rotating body is crucial for achieving this assembly action. Currently, the industry commonly uses a fixed block connection method to connect the assembly machine's rotating body to the hydraulic hoses, specifically using a reel structure to wind and unwind the hoses to adapt to the rotating body's movement requirements. However, this existing connection method has significant technical drawbacks: because the assembly machine's rotating body needs to perform forward and reverse rotation frequently over a long period, the hydraulic hoses connected to it repeatedly bend with the reel's winding and unwinding movements, causing the connection end between the hose and the fixed block to be under constant fatigue stress. This stress concentration from repeated bending gradually damages the hose material, reducing its structural strength and ultimately making it highly susceptible to hose rupture. Hose rupture not only leads to hydraulic fluid leakage and construction interruption but also requires frequent hose replacement to restore equipment operation, significantly increasing construction and maintenance costs. Furthermore, hydraulic fluid leakage can cause equipment failure and even safety hazards, seriously affecting the continuity, safety, and efficiency of TBM construction.

[0003] Therefore, it is necessary to provide a rotary joint device to solve the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a rotary joint device that can adapt to the high-frequency forward and reverse rotation of a rotating body and reduce hose bending damage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A rotary joint device includes a rotating body of an assembly machine and a reel assembly. The reel assembly is wound with a hose for supplying hydraulic medium to the rotating body. One end of the hose near the rotating body is fluidly connected to the rotating body via a rotary joint device fixed to the side of the rotating body. The rotary joint device includes an integrated block and an integrated block support. The integrated block support includes a base plate with a U-shaped structure. A rectangular through hole is opened in the middle of the base plate. Vertically arranged side support plates are fixed to both ends of the top surface of the base plate. The two side support plates are arranged opposite each other and symmetrically distributed. The integrated block is assembled between the two side support plates. The two ends of the integrated block are pivotally connected to the two side support plates respectively by rotating pins. Multiple fluid channel holes are opened in the middle of the integrated block. Pipe joint assemblies are symmetrically assembled on both sides of each fluid channel hole. The pipe joint assemblies on both sides are interconnected through the corresponding fluid channel holes.

[0007] Preferably, the side of the rotating body has an opening that matches the rectangular through hole of the base plate, and the frame area of ​​the base plate is fixedly connected to the side of the rotating body.

[0008] Preferably, the pipe connector assembly located on the top surface of the integrated block is in sealed communication with the rubber hose, and the pipe connector assembly located on the bottom surface of the integrated block is in sealed communication with a hydraulic pipe pre-set inside the rotating body. The other end of the hydraulic pipe is in communication with a control actuator inside the rotating body.

[0009] Preferably, the multiple fluid channel holes opened in the middle of the integrated block are arranged linearly along the length of the integrated block.

[0010] Compared with the prior art, this utility model has the following advantages:

[0011] 1. This utility model achieves this by pivotally connecting the two ends of the integrated block to the side support plate via rotating pins, allowing the integrated block to rotate around the rotating pins at a certain angle. When the assembly machine rotates in both directions, the integrated block can adjust its rotation according to the direction of force on the hose, ensuring that the hose always remains in a straight line or slightly bent. This completely avoids fatigue damage caused by repeated large bending of the hose in existing technologies, fundamentally solving the core problem of hose breakage, significantly extending the service life of the hydraulic hose, and reducing the frequency of hose replacement.

[0012] 2. Multiple fluid channel holes arranged linearly along the length direction are centrally located in the center of the integrated block, and pipe joint assemblies are symmetrically assembled on both sides, realizing the integrated layout of multiple hydraulic pipelines. This structural design greatly simplifies the pipeline layout, making the overall device compact and space-saving; at the same time, the integrated design facilitates the installation, inspection and maintenance of pipelines, reducing the operational difficulty during construction and maintenance. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the rotary joint device;

[0014] Figure 2 This is a schematic diagram of the installation of the rotary joint device on the rotating body;

[0015] Figure 3 This is a schematic diagram showing the state of the rotary joint device and the hose when the rotating body rotates clockwise.

[0016] Figure 4 This is a schematic diagram showing the state of the rotary joint device and the hose when the rotating body rotates counterclockwise.

[0017] Among them, 1-integrated block, 2-integrated block support, 201-base plate, 202-rectangular through hole, 203-side support plate, 3-rotating body, 4-rubber hose, 5-reel assembly, 6-rotating pin, 7-pipe connector assembly Detailed Implementation

[0018] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only for illustrating the present invention and not for limiting the scope of the present invention. After reading the present invention, any modifications of the present invention in various equivalent forms by those skilled in the art will fall within the scope defined by the appended claims.

[0019] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixed connection", 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] In this utility model, terms such as "upper", "lower", "bottom", and "top" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only used to facilitate the description of the structural relationship between the various components or elements of this utility model and do not specifically refer to any component or element in this utility model. They should not be construed as limiting this utility model.

[0021] like Figures 1 to 4 As shown, a rotary joint device includes an assembly machine rotating body 3 and a reel assembly 5. The reel assembly is wound with a hose 4 for conveying hydraulic medium to the rotating body. One end of the hose near the rotating body 3 is in fluid communication with the rotating body through a rotary joint device fixed to the side of the rotating body.

[0022] The rotary joint device includes an integrated block 1 and an integrated block support 2. The integrated block support includes a base plate 201 with a U-shaped structure. A rectangular through hole 202 is opened in the middle of the base plate. An opening adapted to the rectangular through hole of the base plate is opened on the side of the rotating body. The frame area of ​​the base plate is welded and fixed to the side of the rotating body. Vertically arranged side support plates 203 are welded and fixed to both ends of the top surface of the base plate. The two side support plates are arranged opposite each other and symmetrically distributed.

[0023] The integrated block 1 is assembled between two side support plates. A rotating pin 6 is installed at both ends of the integrated block. The rotating pin is pivotally connected to the two side support plates respectively. Several fluid channel holes are arranged linearly along the length of the integrated block in the middle. Pipe connector assemblies 7 are symmetrically assembled on both sides of each fluid channel hole. The pipe connector assemblies on both sides are interconnected through the corresponding fluid channel holes.

[0024] The pipe connector assembly located on the top surface of the integrated block is sealed and connected to the hose, and the pipe connector assembly located on the bottom surface of the integrated block is sealed and connected to the hydraulic pipe pre-installed inside the rotating body. The other end of the hydraulic pipe is connected to the control actuator inside the rotating body.

[0025] The width of the rectangular through hole in the base plate and the opening on the side of the rotating body is greater than the swing amplitude of the pipe joint assembly on the bottom surface of the integrated block.

[0026] The principle and usage of a rotary joint device:

[0027] When the assembly machine is assembling tunnel segments, the rotating body of the assembly machine rotates in both directions according to construction requirements. At the same time, the reel assembly simultaneously retracts and extends the hose. Since the hose is fixedly connected to the pipe connector assembly on the top surface of the integrated block, the rotation of the rotating body drives the hose to generate tension or thrust, which in turn drives the integrated block to rotate adaptively around the rotating pin along the direction of the force on the hose. The integrated block swings in the direction of tension or thrust, keeping the hose in a straight line or slightly bent, maintaining a smooth stress state on the hose.

[0028] During this process, hydraulic fluid is continuously delivered through the hose wound by the reel assembly to the pipe connector assembly on the top surface of the integrated block. After passing through the corresponding fluid channel hole in the middle of the integrated block, it is delivered through the pipe connector assembly on the bottom surface to the hydraulic pipe inside the rotating body, and finally supplied to the control actuators to provide power for the assembly operation of the assembly machine. Multiple fluid channel holes arranged linearly along the length of the integrated block can simultaneously deliver fluid to multiple sets of hydraulic lines, meeting the synchronous operation requirements of different control actuators of the assembly machine and ensuring the continuity of segment assembly operations.

[0029] The foregoing description illustrates and describes preferred embodiments of the present invention. As previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or related technical or knowledge. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A rotary joint device, comprising a rotating body of an assembly machine and a reel assembly, wherein the reel assembly is wound with a hose for supplying hydraulic medium to the rotating body, and one end of the hose near the rotating body is in fluid communication with the rotating body via a rotary joint device fixed to the side of the rotating body, characterized in that: The rotary joint device includes an integrated block and an integrated block support. The integrated block support includes a base plate with a U-shaped structure. A rectangular through hole is opened in the middle of the base plate. Vertically arranged side support plates are fixed to both ends of the top surface of the base plate. The two side support plates are arranged opposite each other and symmetrically distributed. The integrated block is assembled between the two side support plates. The two ends of the integrated block are pivotally connected to the two side support plates respectively through rotating pins. Multiple fluid channel holes are opened in the middle of the integrated block. Pipe joint assemblies are symmetrically assembled on both sides of each fluid channel hole. The pipe joint assemblies on both sides are interconnected through the corresponding fluid channel holes.

2. The rotary joint device according to claim 1, characterized in that: The rotating body has an opening on its side that matches the rectangular through hole in the base plate, and the frame area of ​​the base plate is fixedly connected to the side of the rotating body.

3. The rotary joint device according to claim 1, characterized in that: The pipe connector assembly located on the top surface of the integrated block is sealed and connected to the hose, and the pipe connector assembly located on the bottom surface of the integrated block is sealed and connected to the hydraulic pipe pre-installed inside the rotating body. The other end of the hydraulic pipe is connected to the control actuator inside the rotating body.

4. A rotary joint device according to claim 1, characterized in that: Multiple fluid channel holes opened in the middle of the integrated block are arranged linearly along the length of the integrated block.

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