A pneumatic triplex structure for a hydraulic station of a shield machine

Abstract

The utility model discloses a kind of pneumatic triplex structure for shield machine hydraulic station, it is related to shield machine hydraulic system pneumatic control technical field, including air filter, pressure regulating valve and oil atomizer, the air filter, pressure regulating valve and oil atomizer are sequentially communicated, the one side of air filter is detachably connected with positioning plate, the one side of positioning plate is detachably connected with protection mechanism, the protection mechanism includes fixed link, rotating rod, limit plate and connecting end, the utility model is connected by fixed link, rotating rod, limit plate, connecting end etc. and is formed protection mechanism, form adjustable opening angle's half opening frame structure, can be flexibly around air filter, pressure regulating valve and oil atomizer edge, effectively block external collision, simultaneously equidistant arrangement of positioning hole and detachable connection mode, it is convenient to adjust protection position and dismounting according to requirement.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic control technology for shield tunneling machine hydraulic systems, and in particular to a pneumatic triplet structure for shield tunneling machine hydraulic stations. Background Technology

[0002] The shield tunneling machine hydraulic station is one of the core power sources of the shield tunneling machine (a large engineering machine used for underground tunnel excavation). It mainly provides hydraulic oil that meets the requirements for various hydraulic actuators on the shield tunneling machine (such as hydraulic cylinders, hydraulic motors, etc.). Through the conversion of hydraulic energy and mechanical energy, it realizes the key actions of the shield tunneling machine such as propulsion, rotation, extension and retraction, and support. The pneumatic triplet consists of three components: air filter, pressure reducing valve and oil mist lubricator. They are generally installed in sequence according to the air intake direction.

[0003] However, in the existing technology, the protective structure of the pneumatic triplet is fixed and rigid, and it is impossible to flexibly adjust the opening and closing angle and protection position according to the actual working conditions. Moreover, the installation and disassembly process is cumbersome and the adaptability is poor. At the same time, the pneumatic triplet has few fixing points between each component and the mounting plate, and it is easy to loosen and shift in the vibration environment when the tunnel boring machine is working. The connection stability is insufficient, and the later maintenance and replacement are also inconvenient. Utility Model Content

[0004] The purpose of this utility model is to solve the problems of poor adaptability, inconvenient disassembly and assembly, and unstable connection and maintenance difficulties caused by the small number of fixing points of each component in the existing pneumatic triplet protective structure. Therefore, a pneumatic triplet structure for shield machine hydraulic station is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a pneumatic triplet structure for a shield tunneling machine hydraulic station, comprising an air filter, a pressure regulating valve, and an oil mist lubricator, wherein the air filter, the pressure regulating valve, and the oil mist lubricator are connected in sequence, and a positioning plate is detachably connected to one side of the air filter, and a protective mechanism is detachably connected to one side of the positioning plate. The protective mechanism includes a fixed rod, a rotating rod, a limiting plate, and a connecting end. One end of the fixed rod is rotatably connected to one end of the rotating rod, and a protrusion is fixedly installed on the other end of the rotating rod. The two rotating rods are rotatably connected through the protrusion. The limiting plate is rotatably installed on the outer wall of the connecting end. The positioning plate has positioning holes evenly spaced inside on the outer wall of the fixed rod. The fixed rod is inserted into the positioning holes. One side of the limiting plate is in contact with the positioning plate. The end of the connecting end is threadedly connected to the fixed rod.

[0006] Preferably, the fixed rod and the rotating rod form a semi-open frame structure surrounding the edges of the air filter, pressure regulating valve and lubricator.

[0007] Preferably, a positioning clip is fitted onto the outer wall of the air filter and the pressure regulating valve connecting pipe, and the positioning clip is connected to the positioning plate by bolts.

[0008] Preferably, a positioning frame is fixedly installed on one side of the air filter housing, and a mounting connecting plate is fixedly installed at the junction of the pressure regulating valve and the oil mist lubricator. Both the mounting connecting plate and the positioning frame are connected to the positioning plate by bolts.

[0009] Preferably, a positioning groove is provided at the junction of the fixed rod and the rotating rod.

[0010] Preferably, a notch is provided at the junction of the rotating rod and the fixed rod.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows: 1. In this utility model, a protective mechanism consisting of a fixed rod, a rotating rod, a limiting plate, and a connecting end is provided. By utilizing the rotational connection between the fixed rod and the rotating rod, the rotational connection between the rotating rods through protrusions, and the cooperation of the positioning groove and the notch, an adjustable semi-open frame structure is formed. This structure can flexibly surround the edges of the air filter, pressure regulating valve, and oil mist lubricator, effectively blocking external collisions. At the same time, the equidistant arrangement of the positioning holes and the detachable connection method facilitate the adjustment of the protective position and disassembly according to needs. This solves the problems of fixed protective structures, poor adaptability, and inconvenient installation and disassembly in the prior art, thus improving the flexibility and practicality of the protection.

[0012] 2. In this utility model, the air filter, pressure regulating valve and oil mist lubricator are fixed at multiple points by bolting the positioning clamp, positioning frame, mounting connecting plate and positioning plate. This greatly enhances the installation stability in the vibration environment of the tunnel boring machine and avoids loosening and displacement of components. In contrast, the existing technology often has unstable connections due to the small number of fixing points. At the same time, the detachable connection design between the components facilitates later maintenance and replacement, overcomes the defects of cumbersome disassembly and assembly of traditional structures, and improves the reliability and maintenance convenience of the overall structure. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of a pneumatic triplet structure for a shield tunneling machine hydraulic station proposed in this utility model. Figure 2 This is a front view of a pneumatic triplet structure for a shield tunneling machine hydraulic station proposed in this utility model; Figure 3 This utility model provides a schematic diagram showing the location and structure of the protective mechanism, air filter, pressure regulating valve, and oil mist lubricator for a pneumatic triplet structure used in a tunnel boring machine hydraulic station. Figure 4 This is a three-dimensional structural diagram of the fixed rod and rotating rod of a pneumatic triplet structure for a shield machine hydraulic station proposed in this utility model.

[0014] Legend: 1. Air filter; 2. Pressure regulating valve; 3. Oil mist lubricator; 4. Positioning plate; 5. Protection mechanism; 6. Positioning clamp; 7. Mounting connection plate; 8. Positioning hole; 9. Positioning frame; 51. Fixing rod; 52. Rotating rod; 53. Limiting plate; 54. Connecting end; 55. Protrusion; 56. Notch; 57. Positioning groove. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0016] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0017] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a pneumatic triplet structure for a shield tunneling machine hydraulic station, including an air filter 1, a pressure regulating valve 2, and an oil mist lubricator 3. The air filter 1, pressure regulating valve 2, and oil mist lubricator 3 are connected in sequence. A positioning plate 4 is detachably connected to one side of the air filter 1, and a protection mechanism 5 is detachably connected to one side of the positioning plate 4. The protection mechanism 5 includes a fixed rod 51, a rotating rod 52, a limiting plate 53, and a connecting end 54. One end of the fixed rod 51 is rotatably connected to one end of the rotating rod 52, and the other end of the rotating rod 52 is fixed. A protrusion 55 is installed, and two rotating rods 52 are rotatably connected through the protrusion 55. A limiting plate 53 is rotatably installed on the outer wall of the connecting end 54 and the outer wall of the fixing rod 51. The positioning plate 4 has positioning holes 8 evenly spaced inside, and the fixing rod 51 is inserted into the positioning hole 8. One side of the limiting plate 53 is in contact with the positioning plate 4. The end of the connecting end 54 is threadedly connected to the fixing rod 51. The fixing rod 51 and the rotating rod 52 form a semi-open frame structure that surrounds the edges of the air filter 1, the pressure regulating valve 2, and the oil mist lubricator 3.

[0018] The specific setup and function of this embodiment are described below. Air filter 1, pressure regulating valve 2, and lubricator 3 are sequentially connected to achieve the functions of filtration, pressure regulation, and atomization lubrication of compressed air. Positioning plate 4 is detachably connected to one side of air filter 1. The fixing rod 51 of the protection mechanism 5 is inserted into the positioning hole 8 of positioning plate 4. The connecting end 54 is threaded to the fixing rod 51, and one side of the limiting plate 53, which is rotatably mounted on its outer wall, is fitted against positioning plate 4, thereby fixing the fixing rod 51 to positioning plate 4. The fixing rod 51 is rotatably connected to one end of the rotating rod 52. The two rotating rods 52 are rotatably connected through a protrusion 55, so that the semi-open frame structure formed by the fixing rod 51 and the rotating rod 52 surrounds the edges of air filter 1, pressure regulating valve 2, and lubricator 3, achieving protection for all three. The sequential connection of pressure valve 2 and oil mist lubricator 3 ensures the normal operation of the pneumatic system. Positioning plate 4 is detachably connected to air filter 1, and protective mechanism 5 is detachably connected to positioning plate 4, facilitating the installation and removal of protective mechanism 5. The semi-open frame structure composed of fixed rod 51 and rotating rod 52 surrounds the edges of each component, effectively protecting air filter 1, pressure regulating valve 2, and oil mist lubricator 3 from damage caused by collisions with external objects. The rotating connection between rotating rods 52 and between rotating rod 52 and fixed rod 51 allows the opening and closing angle of the frame structure to be adjusted to meet the protection requirements under different working conditions. Limiting plate 53 and connecting end 54 cooperate to securely fix fixed rod 51. The evenly spaced positioning holes 8 facilitate adjustment of the installation position of fixed rod 51 according to actual needs, improving the flexibility and practicality of the overall structure.

[0019] Example 2: Figure 1 , Figure 3 and Figure 4 As shown, a positioning clip 6 is fitted onto the outer wall of the connecting pipe between the air filter 1 and the pressure regulating valve 2. The positioning clip 6 is connected to the positioning plate 4 by bolts. A positioning frame 9 is fixedly installed on one side of the air filter 1 housing. An installation connecting plate 7 is fixedly installed at the junction of the pressure regulating valve 2 and the oil mist lubricator 3. Both the installation connecting plate 7 and the positioning frame 9 are connected to the positioning plate 4 by bolts. A positioning groove 57 is provided at the junction of the fixed rod 51 and the rotating rod 52. A notch 56 is provided at the junction of the rotating rod 52 and the fixed rod 51.

[0020] The overall effect of this embodiment is that a positioning clip 6 is fitted onto the outer wall of the connecting pipe between the air filter 1 and the pressure regulating valve 2. The positioning clip 6 is connected to the positioning plate 4 by bolts. Simultaneously, the positioning frame 9 on one side of the air filter 1 housing and the mounting connection plate 7 at the junction of the pressure regulating valve 2 and the lubricator 3 are all connected to the positioning plate 4 by bolts. This achieves multi-point fixation of the air filter 1, pressure regulating valve 2, and lubricator 3 on the positioning plate 4, ensuring the stability of the connection structure. The positioning groove 57 at the junction of the fixing rod 51 and the rotating rod 52 and the notch 56 at the junction of the rotating rod 52 and the fixing rod 51 cooperate with each other to assist in the positioning and limiting of the fixing rod 51 and the rotating rod 52 during rotational connection, ensuring the stability of the frame structure of the protection mechanism 5. Its beneficial effect is... The positioning clamp 6, positioning frame 9, and mounting connection plate 7 are connected to the positioning plate 4 by bolts, fixing the air filter 1, pressure regulating valve 2, and oil mist lubricator 3 from multiple positions. This significantly improves the stability of the installation of the three components and prevents loosening or displacement in the vibration environment of the tunnel boring machine. The positioning groove 57 and notch 56 at the junction of the fixing rod 51 and the rotating rod 52 cooperate with each other to enhance the stability and accuracy of the rotational connection between the two, preventing the protection mechanism 5 from being accidentally displaced due to vibration or other factors during the protection process. This further ensures the protective effect on the air filter 1, pressure regulating valve 2, and oil mist lubricator 3. At the same time, the bolt connection method of multiple components also facilitates disassembly, maintenance, and component replacement in the later stage, improving the reliability and maintenance convenience of the overall structure.

[0021] The usage and working principle of this device are as follows: Air filter 1, pressure regulating valve 2, and lubricator 3 are connected sequentially to achieve the functions of filtration, pressure regulation, and atomization lubrication of compressed air. Next, the air filter 1 is detachably connected to the positioning plate 4 via the positioning frame 9 on one side of the air filter 1 housing. Simultaneously, a positioning clip 6 is fitted onto the outer wall of the connecting pipe between the air filter 1 and pressure regulating valve 2, and the positioning clip 6 is bolted to the positioning plate 4. Then, the pressure regulating valve 2, lubricator 3, and positioning plate 4 are bolted together using the mounting connecting plate 7 at the junction of pressure regulating valve 2 and lubricator 3, completing the multi-point fixation of the air filter 1, pressure regulating valve 2, and lubricator 3 on the positioning plate 4. Afterwards, a suitable positioning hole 8 is selected on the positioning plate 4 according to actual needs, and the fixing rod 51 in the protection mechanism 5 is inserted into the selected positioning hole 8. Then, the rotational connection between the fixing rod 51 and one end of the rotating rod 52, as well as the two... The rotating rod 52 is connected by the rotation of the protrusion 55. Combined with the positioning groove 57 and notch 56 at the junction of the fixed rod 51 and the rotating rod 52, the opening angle of the semi-open frame structure formed by the fixed rod 51 and the rotating rod 52 is adjusted so that it surrounds the edge of the air filter 1, the pressure regulating valve 2 and the oil mist lubricator 3 to achieve protection. The connecting end 54 is threadedly connected to the fixed rod 51. Rotating the connecting end 54 causes the limiting plate 53 on its outer wall to fit against the positioning plate 4, thus fixing the fixed rod 51 firmly on the positioning plate 4. During use, the protective state can be changed by adjusting the position of the fixed rod 51 in the positioning hole 8 or the angle of the rotating rod 52 according to the working conditions. During later maintenance, the protective mechanism 5 can be disassembled by removing the bolts to separate the positioning clamp 6, the positioning frame 9, and the mounting connecting plate 7 and the positioning plate 4, or by unscrewing the connecting end 54 and removing the fixed rod 51, so as to repair or replace the components.

[0022] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A pneumatic triplet structure for a shield tunneling machine hydraulic station, comprising an air filter (1), a pressure regulating valve (2), and an oil mist lubricator (3), wherein the air filter (1), the pressure regulating valve (2), and the oil mist lubricator (3) are connected in sequence, characterized in that: The air filter (1) is detachably connected to a positioning plate (4) on one side, and a protective mechanism (5) is detachably connected to one side of the positioning plate (4). The protection mechanism (5) includes a fixed rod (51), a rotating rod (52), a limiting plate (53), and a connecting end (54). One end of the fixed rod (51) is rotatably connected to one end of the rotating rod (52). A protrusion (55) is fixedly installed on the other end of the rotating rod (52). The two rotating rods (52) are rotatably connected through the protrusion (55). The limiting plate (53) is rotatably installed on the outer wall of the connecting end (54). The positioning plate (4) has positioning holes (8) evenly spaced inside. The fixed rod (51) is inserted into the positioning hole (8). One side of the limiting plate (53) is in contact with the positioning plate (4). The end of the connecting end (54) is threadedly connected to the fixed rod (51).

2. The pneumatic triplet structure for a shield machine hydraulic station according to claim 1, characterized in that: The fixed rod (51) and the rotating rod (52) form a semi-open frame structure that surrounds the edges of the air filter (1), the pressure regulating valve (2), and the lubricator (3).

3. The pneumatic triplet structure for a shield machine hydraulic station according to claim 1, characterized in that: A positioning clip (6) is fitted onto the outer wall of the connecting pipe between the air filter (1) and the pressure regulating valve (2), and the positioning clip (6) is connected to the positioning plate (4) by bolts.

4. The pneumatic triplet structure for a shield tunneling machine hydraulic station according to claim 1, characterized in that: A positioning frame (9) is fixedly installed on one side of the housing of the air filter (1), and a mounting connecting plate (7) is fixedly installed at the junction of the pressure regulating valve (2) and the oil mist lubricator (3). The mounting connecting plate (7) and the positioning frame (9) are both connected to the positioning plate (4) by bolts.

5. The pneumatic triplet structure for a shield tunneling machine hydraulic station according to claim 1, characterized in that: A positioning groove (57) is provided at the junction of the fixed rod (51) and the rotating rod (52).

6. The pneumatic triplet structure for a shield tunneling machine hydraulic station according to claim 1, characterized in that: A notch (56) is provided at the junction of the rotating rod (52) and the fixed rod (51).

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