A shield machine hydraulic station grease quantitative filling equipment

Abstract

The utility model discloses a kind of shield machine hydraulic station grease ration filling equipment, it is related to grease filling technical field, including oil storage shell and oil injection shell, the oil injection shell is fixedly arranged below oil storage shell, the upper end front side of the oil injection shell is fixedly arranged with oil injection pipe, the rear end of the oil injection pipe is provided with first check valve, the top of the oil injection shell is provided with first through-hole, the lower surface of the oil storage shell and the position corresponding with first through-hole are provided with second through-hole, the inside of the second through-hole is installed with oil outlet pipe, one end of the oil outlet pipe is provided with second check valve, the inside of the oil injection shell is slidably provided with first piston, the downside of the first piston is provided with second piston, adjusting mechanism for adjusting the interval between first piston and second piston is arranged between the first piston and the second piston. The utility model can carry out the ration filling of grease, and can save time and labor to adjust single filling amount according to demand, convenient and different hydraulic station adaptation.

Description

Technical Field

[0001] This utility model relates to the field of grease filling technology, specifically to a quantitative grease filling device for a tunnel boring machine hydraulic station. Background Technology

[0002] During the operation of a tunnel boring machine (TBM), the normal operation of the hydraulic station plays a crucial role in the stable operation of the TBM, and regularly adding an appropriate amount of grease to the hydraulic station is one of the key operations to ensure its good operating condition.

[0003] Most existing grease filling equipment suffers from the inability to precisely control the filling amount, resulting in either too much or too little filling. Too much filling leads to grease waste and increased costs, while too little filling fails to meet the lubrication needs of the hydraulic station, affecting its service life and working efficiency. In addition, existing filling equipment is difficult to flexibly adjust the filling amount according to different specifications and requirements of hydraulic stations. The adjustment process is often cumbersome, requiring a lot of manpower and time, and has poor adaptability, failing to meet diverse usage scenarios. Utility Model Content

[0004] In view of the problems existing in the grease filling equipment of the hydraulic station of the tunnel boring machine, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a quantitative grease injection device for the hydraulic station of a tunnel boring machine, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A hydraulic station grease metering device for a tunnel boring machine includes an oil storage tank and an oil injection tank. The oil injection tank is fixedly installed below the oil storage tank. An oil injection pipe is fixedly installed on the upper front side of the oil injection tank. A first one-way valve is installed at the rear end of the oil injection pipe. A first through hole is opened at the top of the oil injection tank. A second through hole is opened on the lower surface of the oil storage tank at a position corresponding to the first through hole. An oil outlet pipe is installed inside the second through hole. A second one-way valve is installed at one end of the oil outlet pipe. A first piston is slidably installed inside the oil injection tank. A second piston is installed below the first piston. An adjusting mechanism for adjusting the distance between the first piston and the second piston is provided between the first piston and the second piston. A vertical rod is fixedly installed on the upper side of the first piston. The upper end of the vertical rod extends into the interior of the oil storage tank. A transmission mechanism for moving the vertical rod is provided inside the oil storage tank.

[0007] Preferably, the adjusting mechanism includes a threaded rod and a bellows. A threaded hole is eccentrically opened on one side of the second piston. The threaded rod is threadedly sleeved inside the threaded hole. A third through hole is opened at the bottom of the oil filling shell at a position corresponding to the threaded rod. The lower end of the threaded rod extends to the outside of the third through hole. The bellows is movably sleeved on the rod wall of the threaded rod. The two ends of the bellows are fixedly connected to the lower surface of the second piston and the inner wall of the oil filling shell, respectively.

[0008] Preferably, the transmission mechanism includes a turntable and a movable frame. The movable frame is fixedly mounted on the top of the vertical rod. A rotating rod is rotatably mounted on one inner wall of the oil reservoir. The turntable is fixedly sleeved on the end of the rotating rod near the movable frame. A round pin is eccentrically mounted on the side of the turntable near the movable frame. One end of the round pin passes through the movable frame. A motor is fixedly mounted on one outer wall of the oil reservoir. The output end of the motor is fixedly connected to one end of the rotating rod.

[0009] Preferably, a limit switch is fixedly sleeved at the bottom center of the oil filling shell.

[0010] Preferably, a PLC controller is installed on the outer wall of the oil storage tank and below the motor.

[0011] Preferably, the end of the round pin furthest from the turntable is fixedly fitted with an anti-detachment ring.

[0012] Preferably, the rotating rod has multiple stirring blades fixedly sleeved on its rod wall.

[0013] Preferably, an oil replenishment pipe is provided at the top of the oil storage tank.

[0014] The technical effects and advantages provided by this utility model in the above technical solution are as follows: 1. In this utility model, a motor drives a turntable to rotate, causing a round pin to rotate around a rotating rod as an axis. During this rotation, the round pin slides within a movable frame, which in turn pushes the movable frame to move, thereby causing the first piston and the second piston to move. When the first piston and the second piston move downward, they draw oil from the oil storage tank into the oil filling tank through the oil outlet pipe. When the first piston and the second piston move upward, they push the oil from the oil filling tank out through the oil filling pipe, thus completing the quantitative oil filling.

[0015] 2. In this utility model, the second one-way valve prevents the oil entering the oil filling tank from flowing back into the oil storage tank, and the first one-way valve prevents the oil discharged from the oil filling pipe from flowing back into the oil filling tank.

[0016] 3. In this utility model, by rotating the threaded rod, the second piston moves relative to the first piston, which can adjust the height of the first piston when the second piston contacts the limit switch, thus enabling adjustment of the unidirectional oil injection volume. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the structure of a grease metering device for a tunnel boring machine hydraulic station proposed in this utility model; Figure 2 for Figure 1 Internal structure diagram; Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle section.

[0019] Explanation of reference numerals in the attached figures: 1. Oil reservoir; 2. Oil filling tank; 3. Oil filling pipe; 4. Oil outlet pipe; 5. First piston; 6. Second piston; 7. Threaded rod; 8. Bellows; 9. Limit switch; 10. Rotary rod; 11. Stirring blade; 12. Motor; 13. Turntable; 14. Vertical rod; 15. Oil replenishment pipe; 16. Movable frame; 17. Round pin; 18. Anti-detachment ring; 19. PLC controller. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] This utility model discloses a quantitative grease injection device for the hydraulic station of a tunnel boring machine.

[0022] Reference Figure 1-3A grease metering device for a tunnel boring machine hydraulic station includes an oil storage tank 1 and an oil injection tank 2. The oil injection tank 2 is fixedly installed below the oil storage tank 1. An oil replenishment pipe 15 is provided on the top of the oil storage tank 1 to facilitate the replenishment of grease into the oil storage tank 1. An oil injection pipe 3 is fixedly installed on the upper front side of the oil injection tank 2. A first one-way valve is provided at the rear end of the oil injection pipe 3. A first through hole is opened on the top of the oil injection tank 2. A second through hole is opened on the lower surface of the oil storage tank 1 at a position corresponding to the first through hole. An oil outlet pipe 4 is installed inside the second through hole. A second one-way valve is provided at one end of the oil outlet pipe 4. A first piston 5 is slidably installed inside the oil injection tank 2. A first piston 5 is provided on the lower side of the first piston 5. A second piston 6 is provided, and an adjustment mechanism for adjusting the distance between the first piston 5 and the second piston 6 is provided between them. A vertical rod 14 is fixedly provided on the upper side of the first piston 5, and the upper end of the vertical rod 14 extends into the interior of the oil reservoir 1. A transmission mechanism for moving the vertical rod 14 is provided inside the oil reservoir 1. A limit switch 9 is fixedly sleeved in the middle of the bottom end of the oil filling shell 2. When the second piston 6 moves to the bottom of the oil filling shell 2, the limit switch 9 will be triggered, causing the motor 12 to reverse. A PLC controller 19 electrically connected to the motor 12 is provided on the outer wall of the oil reservoir 1 and below the motor 12, which can precisely control the motor.

[0023] Reference Figure 1-3 The adjusting mechanism includes a threaded rod 7 and a bellows 8. A threaded hole is eccentrically opened on one side of the second piston 6. The threaded rod 7 is threadedly sleeved inside the threaded hole. A third through hole is opened at the bottom of the oil filling shell 2 at a position corresponding to the threaded rod 7. The hole is sealed by the bellows. The lower end of the threaded rod 7 extends to the outside of the third through hole. The bellows 8 is movably sleeved on the rod wall of the threaded rod 7. The two ends of the bellows 8 are fixedly connected to the lower surface of the second piston 6 and the inner wall of the oil filling shell 2, respectively.

[0024] Reference Figure 1-3 The transmission mechanism includes a turntable 13 and a movable frame 16. The movable frame 16 is a rectangular frame and is fixedly mounted on the top of the vertical rod 14. A rotating rod 10 is rotatably mounted on one inner wall of the oil reservoir 1. The turntable 13 is fixedly sleeved on the end of the rotating rod 10 near the movable frame 16. A round pin 17 is eccentrically mounted on the side of the turntable 13 near the movable frame 16. One end of the round pin 17 passes through the movable frame 16, and the movable frame 16 provides space for the round pin 17 to move, matching the movement space of the round pin 17 in one rotation of the turntable 13. The other end of the round pin 17 is a free end. A motor 12 is fixedly installed on one side of the outer wall of the oil storage shell 1. The output end of the motor 12 is fixedly connected to one end of the rotating rod 10. An anti-detachment ring 18 is fixedly sleeved on the end of the round pin 17 away from the turntable 13. The diameter of the anti-detachment ring 18 is larger than the width of the inner wall of the movable frame 16 to prevent the round pin 17 from slipping out of the movable frame 16 as much as possible. Multiple stirring blades 11 are fixedly sleeved on the rod wall of the rotating rod 10, which can stir the grease in the oil storage shell 1 during the oil injection process and prevent the grease from settling.

[0025] In this invention, during use, the required grease injection amount for the shield machine hydraulic station is first set via an adjustment mechanism. The threaded rod 7 is manually rotated. Since the threaded rod 7 is threadedly connected to the threaded hole on the second piston 6, when the threaded rod 7 rotates, the second piston 6 moves relative to the first piston 5 within the oil filling shell 2 along the axial direction of the threaded rod 7. The bellows 8 ensures the sealing of the oil filling shell 2 during the movement of the second piston 6, preventing grease leakage. After adjusting the position of the second piston 6, the travel distance of the first piston 5 when the second piston 6 triggers the travel switch 9 is determined, thus setting the single injection volume. Subsequently, the motor 12 is started, driving the rotating rod 10 to rotate. The rotating rod 10 drives the turntable 13 to rotate. The eccentrically positioned pin 17 on the turntable 13 moves in a circular motion around the rotating rod 10. During the rotation of the pin 17, it slides within the movable frame 16, pushing the movable frame 16 up and down. The movable frame 16, through the vertical rod 14, drives the first piston 5 within the oil filling shell... The first piston 5 and the second piston 6 move synchronously within the oil filling tank 2. Due to the fixed distance between them, the second piston 6 also moves accordingly. When the first piston 5 and the second piston 6 move downward, the pressure inside the oil filling tank 2 decreases. Under the action of the pressure difference, the grease in the oil storage tank 1 pushes open the second one-way valve and flows into the oil filling tank 2 from the oil outlet pipe 4. When the first piston 5 and the second piston 6 move upward, the pressure inside the oil filling tank 2 increases, and the grease pushes open the first one-way valve and is discharged from the oil filling pipe 3 to the shield machine hydraulic station, completing one quantitative oil filling. During the oil filling process, the stirring blade 11 on the rotating rod 10 will stir the grease in the oil storage tank 1 as the rotating rod 10 rotates, preventing grease sedimentation, ensuring grease uniformity, and improving the oil filling quality. When the second piston 6 moves to the bottom of the oil filling tank 2 and triggers the limit switch 9, the limit switch 9 transmits a signal to the PLC controller. The PLC controller controls the motor 12 to reverse, causing the first piston 5 and the second piston 6 to move in opposite directions, repeating the above oil filling process until the preset total amount of oil is reached.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quantitative grease filling device for a shield tunneling machine hydraulic station, comprising an oil storage tank (1) and an oil filling tank (2), characterized in that, The oil filling shell (2) is fixedly installed below the oil storage shell (1). An oil filling pipe (3) is fixedly installed on the front side of the upper end of the oil filling shell (2). A first one-way valve is installed at the rear end of the oil filling pipe (3). A first through hole is opened at the top of the oil filling shell (2). A second through hole is opened on the lower surface of the oil storage shell (1) at a position corresponding to the first through hole. An oil outlet pipe (4) is installed inside the second through hole. A second one-way valve is installed at one end of the oil outlet pipe (4). A first piston (5) is slidably installed inside the oil filling shell (2). A second piston (6) is installed on the lower side of the first piston (5). An adjustment mechanism for adjusting the distance between the first piston (5) and the second piston (6) is provided between the first piston (5) and the second piston (6). A vertical rod (14) is fixedly installed on the upper side of the first piston (5). The upper end of the vertical rod (14) extends into the interior of the oil storage shell (1). A transmission mechanism for moving the vertical rod (14) is provided inside the oil storage shell (1).

2. The shield machine hydraulic station grease metering filling device according to claim 1, characterized in that, The adjusting mechanism includes a threaded rod (7) and a bellows (8). A threaded hole is eccentrically opened on one side of the second piston (6). The threaded rod (7) is threaded into the inside of the threaded hole. A third through hole is opened at the bottom of the oil filling shell (2) at a position corresponding to the threaded rod (7). The lower end of the threaded rod (7) extends to the outside of the third through hole. The bellows (8) is movably sleeved on the rod wall of the threaded rod (7). The two ends of the bellows (8) are fixedly connected to the lower surface of the second piston (6) and the inner wall of the oil filling shell (2), respectively.

3. The shield machine hydraulic station grease metering filling device according to claim 1, characterized in that, The transmission mechanism includes a turntable (13) and a movable frame (16). The movable frame (16) is fixedly installed at the top of the vertical rod (14). A rotating rod (10) is rotatably installed on one side of the inner wall of the oil storage shell (1). The turntable (13) is fixedly sleeved on one end of the rotating rod (10) near the movable frame (16). A round pin (17) is eccentrically installed on one side of the turntable (13) near the movable frame (16). One end of the round pin (17) passes through the movable frame (16). A motor (12) is fixedly installed on one side of the outer wall of the oil storage shell (1). The output end of the motor (12) is fixedly connected to one end of the rotating rod (10).

4. The shield machine hydraulic station grease metering filling device according to claim 1, characterized in that, A limit switch (9) is fixedly sleeved at the bottom center of the oil filling shell (2).

5. The shield machine hydraulic station grease metering filling device according to claim 3, characterized in that, A PLC controller (19) is installed on the outer wall of the oil storage tank (1) and below the motor (12).

6. The shield machine hydraulic station grease metering filling device according to claim 3, characterized in that, The end of the round pin (17) away from the turntable (13) is fixedly fitted with an anti-detachment ring (18).

7. The shield machine hydraulic station grease metering filling device according to claim 3, characterized in that, The rotating rod (10) has multiple stirring blades (11) fixedly sleeved on its rod wall.

8. The shield machine hydraulic station grease metering filling device according to claim 1, characterized in that, An oil replenishment pipe (15) is provided on the top of the oil storage tank (1).

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