Pollution discharge device for sedimentation type vertical shaft tunneling equipment

Abstract

The utility model belongs to the technical field of vertical shaft tunneling machines, and particularly relates to a blowdown device for sedimentation type vertical shaft tunneling equipment. The drainage assemblies are fixedly installed on the two sides of the water cylinder barrel, the drainage assemblies can continuously and uninterruptedly play a role in discharging sewage and dirty oil in the left-right movement process of the actuating piston, and the working efficiency is greatly improved. A groove is formed in the outer portion of an actuating piston, a turned inner hole dustproof ring is placed in the groove, so that the purpose of protecting a sealing system is achieved, two sets of sealing rings are arranged on the inner walls of the two ends of an oil cylinder cover, an annular groove located between the two sets of sealing rings is formed, and a drain hole communicated with the annular groove is formed in the outer wall of the oil cylinder cover. Therefore, leaked media on the water cylinder side and the oil cylinder side cannot be doped into the whole clean hydraulic system due to the suction function of the sealing ring, and the cleanliness of oil liquid of the system is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of shaft boring machines, and in particular relates to a sewage discharge device used for a sinking type shaft boring equipment. Background Art

[0002] With the growth of the world's population and the advancement of urbanization, there is a greater demand for urban space. Especially for China, which has a large population, the demand for underground space is more urgent. In recent years, the development speed of underground space in my country has been getting faster and faster, and the scale of utilization has been getting larger and larger. In this process, a large number of caissons need to be built as underground structures. For example: the starting and receiving shafts of underground tunnel boring machines, tunnel ventilation shafts, urban drainage system shafts, underground stereo garages and storage shafts, mining shafts, bridge engineering shafts, missile silos, etc. Especially when construction is carried out in existing urban areas, many new requirements are put forward for its construction methods and equipment. As a new type of caisson construction equipment and method, the shaft boring machine and its construction method have unique technical advantages such as safety, high efficiency, small site occupation, wide geological adaptability, and small impact on the surrounding environment compared with existing equipment. It is especially suitable for use in large-diameter and deep shaft projects. Therefore, it will play a huge role in future projects and has broad market application prospects.

[0003] During the operation of the shaft boring machine, as the equipment sinks, it will inevitably face the problem of groundwater. The deeper the depth, the greater the water pressure. As the construction progresses, oil and water leakage will inevitably occur in the equipment. How to safely discharge sewage and dirty oil has become a major problem, because the commonly used sewage pumps cannot reach sufficient pressure to resist the external deep water pressure. At the same time, the space inside the equipment bell is limited, and a high-power motor pump group cannot be installed. This poses a threat to the electrical components and key components of the equipment, and it cannot work continuously under dozens of meters of water.

[0004] In view of this, in order to solve the above problems, the utility model designs a sewage discharge device for a sinking type shaft excavation equipment. Utility Model Content

[0005] Purpose of the utility model: The purpose of the utility model is to provide a sewage discharge device for a sinking type shaft excavation equipment in view of the deficiencies in the current technology.

[0006] Technical solution: To achieve the above-mentioned purpose, the utility model provides a sewage discharge device for a sinking shaft excavation equipment, including a water cylinder barrel with a first opening and a second opening on both sides, the two sides of the water cylinder barrel are fixedly connected with drainage components connected to the water cylinder barrel, the drainage components are used to discharge the sewage inside the water cylinder barrel, the left end of the water cylinder barrel is fixedly connected with a water cylinder cover, the right end of the water cylinder barrel is fixedly connected with an oil cylinder cover, the right end of the oil cylinder cover is fixedly connected with the oil cylinder barrel, an actuating piston is slidably connected to the inside of the water cylinder barrel, the left end of the actuating piston is fixedly connected with a piston rod that penetrates the oil cylinder cover and extends into the inside of the oil cylinder barrel, the right end of the piston rod is fixedly connected with a driving piston slidably connected to the inside of the oil cylinder barrel, and the right end of the driving piston is fixedly connected with a sensor arranged on the outside of the oil cylinder barrel.

[0007] Furthermore, the drainage assembly includes a three-way ferrule joint, which includes a third opening, a fourth opening and a fifth opening, the third opening and the fourth opening are respectively connected to the first opening and the second opening, the third opening and the fourth opening at the upper end are fixedly installed with an outlet check valve, and the third opening and the fourth opening at the lower end are fixedly installed with an inlet check valve.

[0008] Furthermore, a groove is provided on the outside of the actuating piston, and a machined inner hole dust ring is placed inside the groove.

[0009] Furthermore, the inner wall of the oil cylinder cover is provided with two sets of sealing rings

[0010] Furthermore, an annular groove located between two groups of sealing rings is opened on the inner side of the oil cylinder cover, and a drain hole connected with the annular groove is opened on the outer wall of the oil cylinder cover.

[0011] Furthermore, travel clearances are left on both sides of the actuating piston.

[0012] Beneficial effects: 1. By fixing the drainage components on both sides of the water cylinder, the drainage components can continuously and uninterruptedly discharge sewage and dirty oil during the left and right movement of the actuating piston, greatly improving work efficiency.

[0013] 2. A groove is opened on the outside of the actuating piston, and a machined inner dust ring is placed inside the groove to protect the sealing system. At the same time, the stroke of the water cylinder is greater than the stroke of the oil cylinder, forming two spaces on both sides of the water cylinder that can accommodate pollutants such as sand and gravel. The inhaled impurities are discharged together with the next discharge condition to ensure durability under polluted media conditions.

[0014] 3. Two sets of sealing rings are provided on the inner walls at both ends of the cylinder cover, an annular groove located between the two sets of sealing rings is opened on the inner side of the cylinder cover, and a drain hole connected to the annular groove is opened on the outer wall of the cylinder cover, thereby ensuring that the leaked medium on the water cylinder side and the oil cylinder side will not be mixed into the entire clean hydraulic system due to the suction function of the sealing ring, thereby ensuring the cleanliness of the system oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a control schematic diagram of the hydraulic system of the utility model;

[0017] Figure 3 It is an enlarged view of point A of the utility model;

[0018] Figure 4 It is an enlarged view of B of the present utility model.

[0019] List of reference numerals: water cylinder head 1, inlet check valve 2, three-way ferrule joint 3, outlet check valve 4, water cylinder barrel 5, actuating piston 6, cylinder head 7, piston rod 8, cylinder barrel 9, driving piston 10, sensor 11, machined inner hole dust ring 12, drain hole 13, first opening 14, second opening 15, third opening 16, fourth opening 17, fifth opening 18, groove 19, sealing ring 20, annular groove 21. DETAILED DESCRIPTION

[0020] The present invention is further explained below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0021] Embodiment 1, according to Figure 1-Figure 4 Provide further explanation.

[0022] The utility model provides a sewage discharge device for a sinking shaft excavation equipment, comprising a water cylinder 5 with a first opening 14 and a second opening 15 on both sides, both sides of the water cylinder 5 are fixedly connected with drainage components communicated with the water cylinder 5, the drainage components are used to discharge sewage inside the water cylinder 5, the left end of the water cylinder 5 is fixedly connected with a water cylinder cover 1, the right end of the water cylinder 5 is fixedly connected with an oil cylinder cover 7, the right end of the oil cylinder cover is fixedly connected with an oil cylinder 9, an actuating piston 6 is slidably connected inside the water cylinder 5, the left end of the actuating piston 6 is fixedly connected with a piston rod 8 that penetrates the oil cylinder cover 7 and extends into the inside of the oil cylinder 9, the right end of the piston rod 8 is fixedly connected with a driving piston 10 that is slidably connected to the inside of the oil cylinder 9, and the right end of the driving piston 10 is fixedly connected with a sensor 11 arranged outside the oil cylinder 9.

[0023] The drainage assembly includes a three-way ferrule joint 3, which includes a third opening 16, a fourth opening 17 and a fifth opening 18. The third opening 16 and the fourth opening 17 are respectively connected to the first opening 14 and the second opening 15. The third opening 16 and the fourth opening 17 at the upper end are fixedly installed with an outlet check valve 4, and the third opening 16 and the fourth opening 17 at the lower end are fixedly installed with an inlet check valve 2.

[0024] The two-position four-way solenoid reversing valve controls the electromagnet to attract and control the valve core to switch the oil circuit through an electrical signal, so as to achieve the purpose of reversing the driving piston 10. It is worth noting that in this hydraulic system, the solenoid valve adopts a stacked solenoid valve, and the valve group is equipped with a stacked pressure reducing valve and a stacked speed regulating valve. The stacked pressure reducing valve is equipped with a pressure gauge, which can set the pressure according to the excavation depth. The stacked speed regulating valve can adjust the oil flow entering this invention to achieve the purpose of speed regulation. In order to prevent the driving piston 10 from colliding with the cylinder cover 7 and the cylinder barrel 9, the cylinder is equipped with a sensor 11. This sensor 11 is a magnetostrictive sensor. The magnetostrictive sensor has a fast response speed. When the piston reaches the end of the stroke, it can be reversed immediately to protect the cylinder from being damaged by impact.

[0025] When the pressure on the oil cylinder side enters, the pressure of the oil acts on the driving piston 10 fixedly connected to the right end of the piston rod 8 and slidably connected to the inside of the oil cylinder barrel 9. The driving piston 10 transmits the force to the actuating piston 6 slidably connected to the inside of the water cylinder barrel 5 through the piston rod 8 fixedly connected to the right end of the piston and penetrating the cylinder cover 7 and extending into the inside of the oil cylinder barrel 9 to form a displacement. When the actuating piston 6 moves to the left, the pressure on the left side of the actuating piston 6 increases, the inlet check valve 2 on the left side is closed, and the outlet check valve 4 on the left side is opened. The internal sewage and dirty oil enter the third opening 16 in the three-way ferrule joint 3 through the first opening 14 on the upper left side, pass through the outlet check valve 4 fixedly installed in the third opening 16 at the upper end of the left side, and are discharged from the fifth opening 18 at the upper end; at the same time, due to the movement of the actuating piston 6 to the left, the space on the right side of the actuating piston 6 forms a negative pressure, and the outlet check valve 4 on the upper right side is opened. The one-way valve 4 is closed, and the inlet one-way valve 2 at the lower right end is opened, and the sewage and dirty oil inside the equipment are sucked into the right side of the water cylinder through the fifth opening 18 and the fourth opening 17 at the lower end. When the sensor 11 detects that the driving piston 10 has reached the end of its stroke, it sends an electrical signal to control the reversing valve to switch the oil circuit to make the driving piston 10 move in the opposite direction. When the driving piston 10 moves to the right, the outlet one-way valve 4 at the upper end of the right side is opened, and the inlet one-way valve 2 at the lower end of the right side is closed. The sewage and dirty oil pass through the outlet one-way valve 4 at the upper end of the right side and are discharged from the fifth opening 18 at the upper end. At this time, negative pressure is formed on the left side of the actuating piston 6, the outlet one-way valve 4 at the upper end of the left side is closed, and the inlet one-way valve 2 at the lower end of the left side is opened. The sewage and dirty oil enter the left side of the actuating piston 6 through the fifth opening and the inlet one-way valve 2 at the lower end of the left side. This process is repeated to continuously inhale and discharge sewage and dirty oil from the bell body.

[0026] As a specific implementation of the utility model, a groove 19 is formed on the outside of the actuating piston 6 , and a machined inner hole dust ring 12 is placed inside the groove 19 .

[0027] A groove 19 is provided on the outside of the actuating piston 6, and a machined inner hole dust ring 12 is placed inside the groove 19. The machined inner hole dust ring 12 is made of wear-resistant and water-resistant materials to protect the sealing system. At the same time, the stroke of the water cylinder is greater than the stroke of the oil cylinder, and two spaces that can accommodate pollutants such as sand and gravel are formed at the front and rear ends of the water cylinder. The inhaled impurities are discharged together with the next discharge condition to ensure durability under polluted media conditions.

[0028] As a specific implementation of the utility model, two sets of sealing rings 20 are provided on the inner walls at both ends of the oil cylinder cover 7 .

[0029] An annular groove 21 located between two sets of sealing rings 20 is formed on the inner side of the oil cylinder cover 7 , and a drain hole 13 communicating with the annular groove 21 is formed on the outer wall of the oil cylinder cover 7 .

[0030] By providing two groups of sealing rings 20 at the inner walls at both ends of the cylinder cover, an annular groove 21 located between the two groups of sealing rings 20 is opened on the inner side of the cylinder cover 7, and a drain hole 13 connected to the annular groove 21 is opened on the outer wall of the cylinder cover 7. The leaked oil can pass through the annular groove 21 into the drain hole 13 and be discharged from the drain hole 13, thereby ensuring that the leaked medium on the water cylinder side and the oil cylinder side will not be mixed into the entire clean hydraulic system due to the suction function of the sealing ring 20, thereby ensuring the cleanliness of the system oil.

[0031] As a specific implementation of the utility model, travel gaps are left on both sides of the actuating piston 6 .

[0032] By leaving travel gaps on both sides of the actuating piston 6 , the actuating piston 6 can slide normally in a medium containing pollutants such as mud and sand.

[0033] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A sewage discharge device for a sinking shaft excavation equipment, characterized in that: It comprises a water cylinder barrel with a first opening and a second opening on both sides, drainage components in communication with the water cylinder barrel are fixedly connected to both sides of the water cylinder barrel, the drainage components are used to discharge sewage inside the water cylinder barrel, a water cylinder cover is fixedly connected to the left end of the water cylinder barrel, an oil cylinder cover is fixedly connected to the right end of the water cylinder barrel, an oil cylinder cover is fixedly connected to the right end of the oil cylinder cover, an actuating piston is slidably connected to the inside of the water cylinder barrel, a piston rod is fixedly connected to the left end of the actuating piston which passes through the oil cylinder cover and extends into the inside of the oil cylinder barrel, a driving piston is fixedly connected to the right end of the piston rod which is slidably connected to the inside of the oil cylinder barrel, and a sensor arranged outside the oil cylinder barrel is fixedly connected to the right end of the driving piston.

2. A sewage discharge device for a sinking shaft excavation device according to claim 1, characterized in that: The drainage assembly includes a three-way ferrule joint, which includes a third opening, a fourth opening and a fifth opening. The third opening and the fourth opening are respectively connected to the first opening and the second opening. An outlet check valve is fixedly installed inside the third opening and the fourth opening at the upper end, and an inlet check valve is fixedly installed inside the third opening and the fourth opening at the lower end.

3. A sewage discharge device for a sinking shaft excavation device according to claim 1, characterized in that: A groove is provided on the outside of the actuating piston, and a machined inner hole dustproof ring is placed inside the groove.

4. A sewage discharge device for a sinking shaft excavation device according to claim 1, characterized in that: The inner wall of the oil cylinder cover is provided with two groups of sealing rings.

5. A sewage discharge device for a sinking shaft excavation device according to claim 1, characterized in that: An annular groove located between two sets of sealing rings is provided on the inner side of the oil cylinder cover, and a drain hole communicating with the annular groove is provided on the outer wall of the oil cylinder cover.

6. A sewage discharge device for a sinking shaft excavation device according to claim 1, characterized in that: A travel gap is left on both sides of the actuating piston.

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