A hydraulic splitting excavation device for full-face excavation of small-section tunnels

Abstract

This utility model discloses a full-section hydraulic splitting excavation device for small-section tunnels, relating to the field of tunnel engineering technology. The utility model includes a platform, with a retaining rod fixedly connected to the top of the platform, a handle fixedly connected to the side of the retaining rod, a foot support fixedly connected to the bottom of the platform, an axle fixedly connected to the bottom of the platform, wheels rotatably connected to both ends of the axle, and a pressure supply device and a bracket fixedly connected to the top of the platform. This utility model achieves orderly transmission of hydraulic medium through the coordinated operation of internal components, facilitates overall operation with the handle, and effectively prevents debris from splashing during excavation, ensuring surrounding safety. Symmetrically arranged supports make the pressure block rotate more smoothly, ensuring uniform force during the excavation process and improving splitting efficiency. Its synergistic effect with the hydraulic plate and extrusion rod ensures precise and stable power transmission, while also providing an installation foundation for the subsequent liquid cooling mechanism, contributing to the continuous and efficient operation of the equipment.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel engineering technology, and in particular relates to a hydraulic splitting and excavation equipment for small-section tunnels. Background Technology

[0002] Tunnel engineering refers to comprehensive engineering projects that construct passages underground or in mountains. It is widely used in transportation, water conservancy, municipal engineering, energy and other fields, and can achieve functions such as crossing natural obstacles and saving surface space. Its construction requires key stages such as geological survey, scheme design, construction implementation, support lining, and final acceptance. Common construction methods include drill and blast method, shield method, TBM method, immersed tube method, etc. The specific scheme needs to be determined comprehensively based on geological conditions, engineering purpose, span length and other factors. During the construction process, it is necessary to focus on technical challenges such as surrounding rock stability, groundwater treatment, construction ventilation and dust control, while strictly controlling core indicators such as safety, quality, progress and cost. It is a complex system engineering that integrates multiple disciplines such as geology, engineering structure, engineering machinery and other disciplines.

[0003] Existing equipment uses the cooperation of components such as hydraulic equipment and splitting equipment to break up rock walls inside tunnels. However, during the breaking process, rock fragments are easily scattered, posing certain safety hazards and causing equipment instability. At the same time, the cutter head working inside the rock for a long time can generate heat, affecting the equipment's operating status. Therefore, we propose a full-section hydraulic splitting excavation equipment for small-section tunnels. Utility Model Content

[0004] The purpose of this utility model is to provide a hydraulic splitting excavation device for small-section tunnels. Through the cooperation of components such as the protection mechanism and the liquid cooling mechanism, it solves the problems in the prior art, such as the rock fragments being easily scattered during the fracturing process, posing certain safety hazards and causing instability of the equipment. At the same time, the cutter head is prone to generating heat when working inside the rock for a long time, which affects the operating status of the equipment.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a hydraulic splitting and excavation device for small-section tunnels, comprising: a platform, a retaining wall fixedly connected to the top of the platform, a handle fixedly connected to the side of the retaining wall, a foot support fixedly connected to the bottom of the platform, an axle fixedly connected to the bottom of the platform, wheels rotatably connected to both ends of the axle, a pressure supply device and a bracket fixedly connected to the top of the platform, an instrument installed on the top of the pressure supply device, and a protective mechanism installed on the top of the bracket;

[0007] The protective mechanism includes a housing, which is disposed on top of the bracket. Pipes are fixedly connected to the circumferential surface and the side surface of the housing. A handle is fixedly connected to the circumferential surface of the housing. A hydraulic plate is slidably connected to the inner side surface of the housing. A squeezing rod is fixedly connected to the side surface of the hydraulic plate. A baffle is fixedly connected to the circumferential surface of the housing.

[0008] Furthermore, a support is fixedly connected to the side of the shell, and a pressure block is rotatably connected to the side of the support, so that the pressure block can flexibly adjust its angle and posture around the support, ensuring that the pressure block can accurately fit the tunnel excavation face or the rock mass to be split.

[0009] Furthermore, the number of supports is set to several, and they are symmetrically arranged along the vertical central axis of the block to achieve balanced force distribution and stable operation of the block. The symmetrically distributed structure can evenly transmit the compressive force and rock reaction force on the block to each support, avoiding stress concentration on one side of the support, which could lead to deformation or damage.

[0010] Furthermore, the side of the pressure block is located on the displacement trajectory of the extrusion rod, ensuring that when the hydraulic plate drives the extrusion rod to make linear motion, the extrusion rod can accurately contact the side of the pressure block and transmit power, avoiding power transmission deviation or failure.

[0011] Furthermore, a liquid cooling mechanism is provided on the side of the pressure block. The liquid cooling mechanism includes a nozzle, the side of which is fixedly connected to the inside of the pressure block. A water pipe is fixedly connected to the side of the nozzle, and one end of the water pipe is fixedly connected to the side of the pressure supply device.

[0012] Furthermore, the nozzle has spray holes on its side, and the number of spray holes is set to several and arranged in a circumferential array on the side of the nozzle to expand the coverage of the coolant spray and ensure that the cooling medium can be evenly dispersed to the pressing block and the surrounding working area.

[0013] Furthermore, the number of nozzles is set to several, and they are symmetrical to each other along the vertical central axis of the pressure block, ensuring full coverage of the cooling area and balanced heat dissipation. This can fully cover the key heat-generating parts of the pressure block and avoid local high temperatures caused by insufficient heat dissipation on one side.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model, through the coordinated operation of components such as pipes, extrusion rods, and pressure blocks within the protective mechanism, achieves orderly transmission of hydraulic media. The handle facilitates overall operation, and the baffle effectively prevents flying debris during excavation, ensuring the safety of the surrounding area. The symmetrically arranged supports make the pressure block rotate more smoothly, ensuring uniform force distribution during the extrusion process and improving splitting efficiency. Its synergistic effect with the hydraulic plate and extrusion rods ensures precise and stable power transmission, while also providing an installation foundation for the subsequent liquid cooling mechanism, contributing to the continuous and efficient operation of the equipment.

[0016] 2. This utility model achieves stable water supply and ensures continuous delivery of cooling medium through the cooperation of components such as nozzles, water pipes, and spray holes inside the liquid cooling mechanism. The nozzles, built into the pressure block, can be precisely aimed at the heat-generating area of ​​the splitting operation. The circumferential array of spray holes ensures uniform coverage of the coolant, improving heat dissipation efficiency. The symmetrically distributed nozzles further ensure even heat dissipation, effectively reducing the operating temperature of the equipment, preventing damage to components due to high temperatures, extending service life, and maintaining stable operation of the equipment, providing reliable protection for small-section tunnel excavation operations.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a three-dimensional appearance structure diagram from a first-person perspective of the present invention.

[0020] Figure 2 This is a schematic diagram of the three-dimensional partial cross-sectional structure of the present invention from a second perspective;

[0021] Figure 3 This utility model Figure 2 A three-dimensional magnified structural diagram of A in the middle;

[0022] Figure 4 This is a three-dimensional appearance structure diagram of the present invention from a second perspective.

[0023] Figure 5 This utility model Figure 4 A three-dimensional magnified structural diagram of B.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Platform; 2. Barrel; 3. Handle; 4. Footrest; 5. Axle; 6. Wheel; 7. Pressure supply equipment; 8. Bracket; 9. Instrument; 10. Protective mechanism; 101. Housing; 102. Pipe; 103. Handle; 104. Hydraulic plate; 105. Extrusion rod; 106. Baffle; 107. Support; 108. Pressure block; 11. Liquid cooling mechanism; 111. Nozzle; 112. Water pipe; 113. Spray hole. Detailed Implementation

[0026] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model is a hydraulic splitting and excavation device for small-section tunnels, comprising: a platform 1, a retaining rod 2 fixedly connected to the top of the platform 1, a handle 3 fixedly connected to the side of the retaining rod 2, a foot support 4 fixedly connected to the bottom of the platform 1, a wheel axle 5 fixedly connected to the bottom of the platform 1, wheels 6 rotatably connected to both ends of the wheel axle 5, a pressure supply device 7 and a bracket 8 fixedly connected to the top of the platform 1, an instrument 9 installed on the top of the pressure supply device 7, and a protective mechanism 10 installed on the top of the bracket 8;

[0028] The protective mechanism 10 includes a housing 101, which is located on top of the bracket 8. Pipes 102 are fixedly connected to the circumferential surface and the side surface of the housing 101. A handle 103 is fixedly connected to the circumferential surface of the housing 101. A hydraulic plate 104 is slidably connected to the inner side surface of the housing 101. A squeeze rod 105 is fixedly connected to the side surface of the hydraulic plate 104. A baffle 106 is fixedly connected to the circumferential surface of the housing 101.

[0029] As shown in the figure, a support 107 is fixedly connected to the side of the shell 101, and a pressure block 108 is rotatably connected to the side of the support 107, so that the pressure block 108 can flexibly adjust its angle and posture around the support 107 to ensure that the pressure block 108 can accurately fit the tunnel excavation face or the rock mass to be split.

[0030] As shown in the figure, there are several supports 107, which are symmetrically arranged along the vertical central axis of the pressure block 108 to achieve balanced force distribution and stable operation of the pressure block 108. The symmetrical distribution structure can evenly transmit the compressive force and rock reaction force on the pressure block 108 to each support 107, avoiding stress concentration on one side of the support 107, which could lead to deformation or damage.

[0031] As shown in the figure, the side of the pressure block 108 is located on the displacement trajectory of the extrusion rod 105, ensuring that when the hydraulic plate 104 drives the extrusion rod 105 to make linear motion, the extrusion rod 105 can accurately contact the side of the pressure block 108 and transmit power, avoiding power transmission deviation or failure.

[0032] As shown in the figure, a liquid cooling mechanism 11 is provided on the side of the pressure block 108. The liquid cooling mechanism 11 includes a nozzle 111. The side of the nozzle 111 is fixedly connected to the inside of the pressure block 108. A water pipe 112 is fixedly connected to the side of the nozzle 111. One end of the water pipe 112 is fixedly connected to the side of the pressure supply device 7.

[0033] As shown in the figure, the nozzle 111 has several spray holes 113 on its side, which are arranged in a circumferential array on the side of the nozzle 111 to expand the coverage of the coolant spray and ensure that the cooling medium can be evenly distributed to the pressure block 108 and the surrounding working area.

[0034] As shown in the figure, there are several nozzles 111, which are symmetrically arranged along the vertical central axis of the pressure block 108 to ensure full coverage of the cooling area and balanced heat dissipation. They can fully cover the key heat-generating parts of the pressure block 108 and avoid local high temperature caused by insufficient heat dissipation on one side.

[0035] A specific application of this embodiment is as follows: The vehicle platform 1 provides the installation base for the equipment. The equipment can be moved flexibly by the cooperation of the wheel axle 5 and the wheel 6. After it is moved into place, the foot support 4 supports and fixes the vehicle platform 1. The operator holds the handle 3 on the armrest 2 to help stabilize the equipment. The pressure supply device 7 on the vehicle platform 1 is started. The pressure parameters are monitored by the instrument 9. The pressure supply device 7 delivers hydraulic power to the housing 101 of the protection mechanism 10 on the bracket 8 through the pipeline 102. The hydraulic medium pushes the hydraulic plate 104 in the housing 101 to slide. The hydraulic plate 104 drives the extrusion rod 105 to move. Since the side of the pressure block 108 is located on the displacement trajectory of the extrusion rod 105, the extrusion rod 105 pushes the pressure block 108 to rotate around the support 107 on the side of the housing 101. The pressure block 108 acts on the rock mass to complete the splitting. During the operation, the baffle 106 on the circumferential surface of the housing 101 blocks the broken stones. The handle 103 can help adjust the position of the housing 101 to ensure that the entire splitting process is safe and efficient.

[0036] The pressure supply device 7 provides cooling medium to the liquid cooling mechanism 11. The cooling medium is transported through water pipe 112 to the nozzles 111 inside the pressure block 108. The nozzles 111 are symmetrically distributed along the vertical central axis of the pressure block 108, and several spray holes 113 arranged in a circular array on their sides evenly spray the cooling medium onto the pressure block 108 and the working area. The heat generated by the pressure block 108 during the splitting operation is quickly absorbed by the sprayed cooling medium, achieving efficient heat dissipation and preventing the pressure block 108 from deforming or degrading due to high temperature. This ensures the rotational flexibility of the pressure block 108 and the continuous and stable operation of the equipment, providing reliable temperature protection for small-section tunnel splitting excavation operations.

[0037] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A hydraulic splitting excavation device for full-section tunnels with small cross-sections, comprising a platform (1), characterized in that: A railing (2) is fixedly connected to the top of the vehicle platform (1), a handle (3) is fixedly connected to the side of the railing (2), a foot support (4) is fixedly connected to the bottom of the vehicle platform (1), a wheel axle (5) is fixedly connected to the bottom of the vehicle platform (1), and wheels (6) are rotatably connected to both ends of the wheel axle (5). A pressure supply device (7) and a bracket (8) are fixedly connected to the top of the vehicle platform (1). An instrument (9) is installed on the top of the pressure supply device (7), and a protective mechanism (10) is installed on the top of the bracket (8). The protective mechanism (10) includes a housing (101), which is located on top of the bracket (8). Pipes (102) are fixedly connected to the circumferential surface and the side surface of the housing (101). A handle (103) is fixedly connected to the circumferential surface of the housing (101). A hydraulic plate (104) is slidably connected to the inner side surface of the housing (101). A squeeze rod (105) is fixedly connected to the side surface of the hydraulic plate (104). A baffle (106) is fixedly connected to the circumferential surface of the housing (101).

2. The hydraulic splitting excavation equipment for small-section tunnels according to claim 1, characterized in that, A support (107) is fixedly connected to the side of the housing (101), and a pressure block (108) is rotatably connected to the side of the support (107).

3. The small-section tunnel full-section hydraulic splitting excavation equipment according to claim 2, characterized in that, The number of supports (107) is set to several, and they are symmetrical to each other along the vertical central axis of the pressure block (108).

4. The hydraulic splitting excavation equipment for small-section tunnels according to claim 3, characterized in that, The side of the pressure block (108) is located on the displacement trajectory of the extrusion rod (105).

5. The small-section tunnel full-section hydraulic splitting excavation equipment according to claim 4, characterized in that, The side of the pressure block (108) is provided with a liquid cooling mechanism (11), which includes a nozzle (111). The side of the nozzle (111) is fixedly connected to the inside of the pressure block (108), and a water pipe (112) is fixedly connected to the side of the nozzle (111). One end of the water pipe (112) is fixedly connected to the side of the pressure supply device (7).

6. The small-section tunnel full-section hydraulic splitting excavation equipment according to claim 5, characterized in that, The nozzle (111) has spray holes (113) on its side. The number of spray holes (113) is set to a certain number and they are arranged in a circumferential array on the side of the nozzle (111).

7. The hydraulic splitting excavation equipment for small-section tunnels according to claim 6, characterized in that, The number of nozzles (111) is set to several, and they are symmetrical to each other along the vertical central axis of the pressure block (108).

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