An oil-injected turning roller assembly for a tunnel boring machine

Abstract

The present invention relates to the technical field of engineering machinery, and discloses an oil-injected turning roller group of a tunnel boring machine, comprising a base plate and a supporting base block, wherein the supporting base block is symmetrically fixedly connected to the top of the base plate, and two supporting base blocks are provided. A supporting high rod is fixedly connected to both ends of the top of the base plate, and two supporting high rods are provided. One end of the supporting base block close to the center of the base plate is fixedly connected to an inner bearing column, and the surface of the inner bearing column is rotatably connected to an outer bearing frame; dust on the surface of the outer bearing frame is removed by a dust-cleaning scraper, thereby preventing dust and impurities that are not cleaned during oiling from entering the interior of the outer bearing frame, increasing the friction inside the outer bearing frame, and causing wear and deterioration of the inner bearing column and the outer bearing frame, ensuring that the lubricating oil is fully lubricated and effectively reducing the friction and wear between the inner bearing column and the outer bearing frame, ensuring the stability and reliability of the operation of the inner bearing column and the outer bearing frame, thereby extending the service life of the inner bearing column and the outer bearing frame.

Description

Technical Field

[0001] The invention relates to the technical field of engineering machinery, in particular to an oil-injected turning roller group of a tunnel boring machine. Background Art

[0002] Oil-filled turning roller group is a kind of supporting equipment commonly used in tunnel boring machines. It is mainly used to support and guide the conveyor belt to make it run smoothly and reduce the wear on the conveyor belt and other equipment.

[0003] Bearings are installed at the connecting parts of the two ends of the oil-injected turning roller group. Before oiling, the staff needs to clean the dust and impurities on the bearing surface. If the dust and impurities are not cleaned up, they will enter the bearing and mix with the lubricating oil to form particles. These particles will increase the friction between the bearing and its surrounding parts, causing the machine to require more energy to operate. In addition, the bearing surface will be squeezed, abraded and scratched during operation, thereby accelerating the wear and deterioration of the bearing.

[0004] Then, the staff holds the oil filling pipe and injects lubricating oil into the oil filling hole opened on the bearing surface. Since the duration and amount of oil injection need to be judged according to the staff's experience, and human operation is easily affected by the external environment, leading to misjudgment, the lubricating oil often overflows from the bearing oil filling hole during oil injection. When the roller group is running, the overflowed lubricating oil is exposed to the high-temperature working environment outside the bearing. The lubricating oil rotates with the bearing, and the lubricating oil is stirred to form a fluid state. The volatile substances in the lubricating oil will evaporate rapidly, generating foam. These foams will increase the friction between the bearings, causing the bearings to overheat and damage, thereby affecting the normal operation of the equipment.

[0005] In addition, lubricating oil and foam exposed to the air will form a sticky film on the surface due to the characteristics of grease. The sticky film will absorb dust particles in the air, making it difficult for them to be removed by wind, airflow or mechanical force. These dust particles will further wear the bearings, affecting their normal operation and life, and greatly hindering the cleaning work required before subsequent oiling.

[0006] If the residual lubricating oil is not recycled, it needs to be discarded and replaced with new lubricating oil, which will increase the financial expenditure of the project. In addition, the harmful substances in the waste lubricating oil pose a potential threat to the health of the workers.

[0007] Therefore, an oil-injected turning roller assembly for a tunnel boring machine is proposed. Summary of the Invention

[0008] The object of the present invention is to provide an oil-injected turning roller assembly for a tunnel boring machine to solve the problems raised in the above-mentioned background technology.

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an oil-injected turning roller group of a tunnel boring machine, comprising a base plate and a supporting base block, the supporting base block being symmetrically fixedly connected to the top of the base plate, the supporting base block being provided with two, both ends of the top of the base plate being fixedly connected to a supporting high rod, one end of the supporting base block close to the center of the base plate being fixedly connected to a bearing inner column, the surface of the bearing inner column being rotatably connected to a bearing outer frame, the side of the bearing outer frame close to the center of the base plate being fixedly connected to a roller, the top of the base plate being provided with an outer frame component for covering dust and excess lubricating oil, the top of the base plate being provided with a dust cleaning component for cleaning dust on the surface of the bearing inner column and the bearing outer frame, the top of the base plate being provided with an oil cleaning component for cleaning excess lubricating oil on the surface of the bearing inner column and the bearing outer frame, the top of the base plate being provided with an oil collecting component for collecting excess lubricating oil on the surface of the bearing inner column and the bearing outer frame;

[0010] The outer frame assembly includes a cover and a cover frame. The cover is fixedly mounted on a side of the bearing outer frame close to the supporting bottom block, and the cover frame is fixedly connected to a side of the bearing outer frame close to the cover frame.

[0011] The dust cleaning assembly includes a dust cleaning groove and a dust cleaning electromagnet. The dust cleaning groove is opened at one end of the support bottom block close to the bearing inner column, and the dust cleaning electromagnet is fixedly connected to one end of the dust cleaning groove close to the roller.

[0012] The oil cleaning assembly includes an oil cleaning tank and an oil cleaning electromagnet. The oil cleaning tank is provided at one end of the support bottom block close to the inner column of the bearing. The oil cleaning electromagnet is fixedly connected to one end of the dust cleaning tank close to the roller.

[0013] The oil collecting assembly includes an oil collecting bin which is fixedly connected to the outer wall of the covering frame.

[0014] Preferably, the outer frame assembly further comprises an oil filling outer door, which is rotatably connected to a side of the covering frame away from the sealing cover, and an outer door block is fixedly mounted on the surface of the covering frame, and the outer door block fits in contact with the opposite surface of the oil filling outer door.

[0015] Preferably, the dust cleaning assembly also includes a dust cleaning spring, which is fixedly connected to the end of the dust cleaning electromagnet away from the roller, and the end of the dust cleaning spring away from the roller is fixedly connected to the dust cleaning bearing plate, and the side of the dust cleaning bearing plate close to the bearing outer frame is fixedly connected to the dust cleaning scraper, and a dust cleaning rotary door is rotatably connected to the bottom of the dust cleaning scraper on the covering frame, and a dust collecting bin is fixedly connected to the surface of the covering frame and at the bottom of the supporting bottom block, and the bottom of the dust collecting bin is slidably connected to a drawer.

[0016] Preferably, the oil cleaning component also includes an oil cleaning spring, the oil cleaning spring is fixedly connected to the end of the oil cleaning electromagnet away from the roller, the end of the oil cleaning spring away from the roller is fixedly connected to the oil cleaning bearing plate, the side of the oil cleaning bearing plate close to the bearing outer frame is fixedly connected to the oil cleaning scraper, the side of the oil cleaning bearing plate away from the oil cleaning scraper is symmetrically fixedly connected to two vertical plates, the opposite surfaces of the two vertical plates are rotatably connected to a double-threaded reciprocating rod, the opposite surfaces of the two vertical plates are symmetrically fixedly connected to two auxiliary rods with the double-threaded reciprocating rod as a reference, the surface of the double-threaded reciprocating rod is slidably connected to a sliding block, and the sliding block is rotatably connected to the end of the double-threaded reciprocating rod away from the double-threaded reciprocating rod. The top plate, the side of the top plate close to the oil cleaning scraper is symmetrically fixedly connected with an adhesive scraper with a double-threaded reciprocating rod as a reference, the side of the oil cleaning carrier plate close to the dust cleaning carrier plate is rotatably connected to the bottom gear, the side of the bearing inner column away from the roller is fixedly connected with a latch tooth, the side of the latch tooth close to the oil cleaning carrier plate is meshed with the bottom gear, the top of the oil cleaning carrier plate close to the bottom gear is rotatably connected with a top gear, the top gear and the bottom gear are meshed with each other, the side of the top gear away from the supporting bottom block is fixedly connected with a rotating shaft, a belt is connected to the rotating shaft and the double-threaded reciprocating rod for transmission, and an oil cleaning rotary door is rotatably connected to the covering frame and located at the bottom of the oil cleaning scraper.

[0017] Preferably, the oil collecting assembly also includes a pressurizing device, which is fixedly installed on the side of the oil collecting bin close to the center of the bottom plate. The side of the oil collecting bin away from the supporting bottom block is fixedly connected to an oil pipe, and the end of the oil pipe away from the oil collecting bin is fixedly installed with an oil storage device.

[0018] Preferably, an oil filling hole is provided on the opposite surface of the bearing outer frame and the cover.

[0019] Preferably, the dust cleaning electromagnet and the oil cleaning electromagnet are both electrically controlled on and off by an external control panel, and the pressurizing device is also electrically controlled on and off by an external control panel.

[0020] Preferably, the material of the dust cleaning carrier plate and the oil cleaning carrier plate is set to iron, which makes cleaning easier; the material of the oil cleaning scraper and the dust cleaning scraper is set to soft rubber, which makes cleaning easier; the adhesive scraper is fitted with the opposite surface of the oil cleaning scraper, which makes cleaning easier; the texture on the surface of the double-threaded reciprocating rod is set to staggered bidirectional threads, which makes reciprocating motion easier; the oil cleaning rotary door and the dust cleaning rotary door are both electrically controlled by an external control panel to turn on and off.

[0021] Preferably, the oil collecting bin is communicated with the interior of the oil pipeline and the oil storage device, which facilitates the collection of lubricating oil. The bottom surface of the oil collecting bin is set as a slope, and the low point of the slope of the oil collecting bin is close to one side of the oil pipeline, which facilitates the collection of lubricating oil.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The dust on the surface of the bearing outer frame is removed by the dust scraper, which prevents the dust and impurities that are not cleaned during oil filling from entering the inner part of the bearing outer frame, increasing the friction inside the bearing outer frame, and causing wear and deterioration of the bearing inner column and the bearing outer frame. It ensures that the lubricating oil is fully lubricated and effectively reduces the friction and wear between the bearing inner column and the bearing outer frame, ensuring the stability and reliability of the operation of the bearing inner column and the bearing outer frame, thereby extending the service life of the bearing inner column and the bearing outer frame;

[0024] 2. The lubricating liquid on the surface of the bearing outer frame is removed by the oil scraper, which prevents the lubricating oil from forming a sticky film on the surface of the bearing inner column and the bearing outer frame that absorbs and fixes dust particles, causing wear on the bearing inner column and the bearing outer frame, affecting their normal operation and life. It ensures that the surface of the bearing inner column and the bearing outer frame is clean, provides better lubrication effect, reduces the risk of wear and damage to the bearing inner column and the bearing outer frame, and extends the service life of the bearing inner column and the bearing outer frame;

[0025] 3. The lubricating liquid on the surface of the oil-cleaning scraper is dropped into the oil collecting tank by the adhesive scraper, which prevents the overflowed lubricating oil from being stirred and forming foam on the surface of the bearing inner column and the bearing outer frame under the influence of the high temperature working environment, thereby increasing the friction between the bearing inner column and the bearing outer frame, and causing the bearing inner column and the bearing outer frame to overheat and be damaged. This ensures the stability and reliability of the oil-filled turning roller set, and ensures the cleanliness and normal operation of the bearing inner column and the bearing outer frame.

[0026] 4. The lubricating oil in the oil collecting bin is collected into the oil storage device, which avoids the situation where the residual lubricating oil is not recycled and needs to be discarded and replaced with new lubricating oil, which increases the financial expenditure of the project. It also avoids the situation where the staff directly contact the lubricating oil, which may cause harmful substances in the lubricating oil to endanger the staff, thereby ensuring the work safety of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic elevation diagram of the overall device of the present invention;

[0028] Figure 2 It is a cross-sectional schematic diagram of the overall device of the present invention;

[0029] Figure 3 For the present invention Figure 2 A in the middle is an enlarged schematic diagram;

[0030] Figure 4 This is a schematic diagram of the overall device position of the present invention;

[0031] Figure 5 For the present invention Figure 4 The enlarged schematic diagram of point B in the middle;

[0032] Figure 6 This is a schematic diagram of the position of the dust cleaning component of the present invention;

[0033] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of point C in the middle;

[0034] Figure 8 This is a schematic diagram of the position of the oil cleaning component of the present invention;

[0035] Figure 9 For the present invention Figure 8 The enlarged schematic diagram of point D in the middle;

[0036] Figure 10 Schematic cross-sectional view of the oil cleaning component of the present invention;

[0037] Figure 11 For the present invention Figure 10 The enlarged schematic diagram at E in the middle;

[0038] Figure 12 This is a detailed schematic diagram of the oil cleaning component of the present invention;

[0039] Figure 13 For the present invention Figure 12 The enlarged schematic diagram at F in the middle;

[0040] Figure 14 For the present invention Figure 13 Enlarged schematic diagram at G in the middle;

[0041] Figure 15 This is a schematic diagram of the position of the oil collecting assembly of the present invention;

[0042] Figure 16 For the present invention Figure 15 Enlarged schematic diagram at H in the middle.

[0043] In the picture:

[0044] 11. Bottom plate; 12. Support bottom block; 13. Support high pole; 14. Bearing inner column; 15. Bearing outer frame; 16. Roller;

[0045] 2. Outer frame assembly; 21. Cover; 22. Cover frame; 23. Oil filling outer door; 24. Outer door block;

[0046] 3. Dust cleaning assembly; 31. Dust cleaning slot; 32. Dust cleaning electromagnet; 33. Dust cleaning spring; 34. Dust cleaning bearing plate; 35. Dust cleaning scraper; 36. Dust cleaning swing door; 37. Dust collection bin; 38. Drawer;

[0047] 4. Oil cleaning assembly; 41. Oil cleaning tank; 42. Oil cleaning electromagnet; 43. Oil cleaning spring; 44. Oil cleaning bearing plate; 45. Oil cleaning scraper; 46. Vertical plate; 47. Double-threaded reciprocating rod; 48. Auxiliary rod; 49. Top plate; 410. Sliding block; 411. Adhesive scraper; 412. Bottom gear; 413. Gear; 414. Top gear; 415. Rotating shaft; 416. Belt; 417. Oil cleaning valve;

[0048] 5. Oil collecting assembly; 51. Oil collecting tank; 52. Pressurizing device; 53. Oil pipeline; 54. Oil storage device. DETAILED DESCRIPTION

[0049] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0050] See also Figures 1 to 16 , is an embodiment provided by the present invention: an oil-injected turning roller group of a tunnel boring machine, comprising a base plate 11 and a supporting base block 12. The supporting base block 12 is symmetrically fixedly connected to the top of the base plate 11. Two supporting base blocks 12 are provided, and both ends of the top of the base plate 11 are fixedly connected to a supporting high rod 13. One end of the supporting base block 12 close to the center of the base plate 11 is fixedly connected to a bearing inner column 14. The surface of the bearing inner column 14 is rotatably connected to a bearing outer frame 15. The bearing outer frame 15 is provided with an oil filling hole on the surface opposite to the cover 21. The bearing outer frame 15 is fixedly connected to a roller 16 on the side close to the center of the base plate 11. The roller 16 is drivably mounted on an external drive device, which is electrically controlled on and off by an external control panel. The external drive device is preferably a motor. An outer frame component 2 for covering dust and excess lubricating oil is provided on the top of the base plate 11. A dust cleaning component 3 for cleaning dust on the surfaces of the bearing inner column 14 and the bearing outer frame 15 is provided on the top of the base plate 11. An oil cleaning component 4 for cleaning excess lubricating oil on the surfaces of the bearing inner column 14 and the bearing outer frame 15 is provided on the top of the base plate 11. An oil collecting component 5 for collecting excess lubricating oil on the surfaces of the bearing inner column 14 and the bearing outer frame 15 is provided on the top of the base plate 11.

[0051] The outer frame assembly 2 includes a cover 21 and a covering frame 22. The cover 21 is fixedly mounted on the side of the bearing outer frame 15 close to the supporting bottom block 12. The covering frame 22 is fixedly connected to the side of the bearing outer frame 15 close to the covering frame 22. The outer frame assembly 2 also includes an oil filling outer door 23. The oil filling outer door 23 is rotatably connected to the side of the covering frame 22 away from the cover 21. An outer door block 24 is fixedly mounted on the surface of the covering frame 22, and the outer door block 24 is in contact with the opposite surface of the oil filling outer door 23.

[0052] The dust cleaning component 3 includes a dust cleaning groove 31 and a dust cleaning electromagnet 32. The dust cleaning groove 31 is opened at one end of the support bottom block 12 close to the bearing inner column 14. The dust cleaning electromagnet 32 ​​is fixedly connected to the end of the dust cleaning groove 31 close to the roller 16. The dust cleaning electromagnet 32 ​​and the oil cleaning electromagnet 42 are both electrically controlled on and off by an external control panel. The dust cleaning component 3 also includes a dust cleaning spring 33. The dust cleaning spring 33 is fixedly connected to the end of the dust cleaning electromagnet 32 ​​away from the roller 16. The dust cleaning spring 33 is away from the roller 16. One end of the roller 16 is fixedly connected to a dust cleaning carrier plate 34. The material of the dust cleaning carrier plate 34 and the oil cleaning carrier plate 44 is set to iron, which makes cleaning easier. The dust cleaning carrier plate 34 is fixedly connected to the side of the bearing outer frame 15 close to the bearing outer frame 15. A dust cleaning rotary door 36 is rotatably connected to the bottom of the dust cleaning scraper 35 on the covering frame 22. A dust collecting bin 37 is fixedly connected to the surface of the covering frame 22 and located at the bottom of the supporting bottom block 12. A drawer 38 is slidably connected to the bottom of the dust collecting bin 37.

[0053] The oil cleaning component 4 includes an oil cleaning groove 41 and an oil cleaning electromagnet 42. The oil cleaning groove 41 is opened at one end of the support bottom block 12 close to the bearing inner column 14. The oil cleaning electromagnet 42 is fixedly connected to one end of the dust cleaning groove 31 close to the roller 16. The oil cleaning component 4 also includes an oil cleaning spring 43. The oil cleaning spring 43 is fixedly connected to the end of the oil cleaning electromagnet 42 away from the roller 16. The end of the oil cleaning spring 43 away from the roller 16 is fixedly connected to an oil cleaning bearing plate 44. The side of the oil cleaning bearing plate 44 close to the bearing outer frame 15 is fixedly connected to an oil cleaning scraper 45. The material of the scraper 45 and the dust scraper 35 is set to soft rubber, which makes it easy to clean. The oil-cleaning bearing plate 44 is symmetrically fixedly connected to one side of the oil-cleaning scraper 45 with two vertical plates 46. The opposite surfaces of the two vertical plates 46 are rotatably connected with double-threaded reciprocating rods 47. The texture of the surface of the double-threaded reciprocating rod 47 is set to staggered bidirectional threads, which makes it easy to reciprocate. The opposite surfaces of the two vertical plates 46 are symmetrically fixedly connected with two auxiliary rods 48 with the double-threaded reciprocating rod 47 as a reference. The surface of the double-threaded reciprocating rod 47 is slidably connected with a sliding rod. The end of the sliding block 410 away from the double-threaded reciprocating rod 47 is rotatably connected to the top plate 49. The top plate 49 is symmetrically fixedly connected to the side of the oil scraper 45 with the double-threaded reciprocating rod 47 as a reference. The adhesive scraper 411 fits the opposite surface of the oil scraper 45, which facilitates cleaning. The side of the oil carrier plate 44 close to the dust carrier plate 34 is rotatably connected to the bottom gear 412. The side of the bearing inner column 14 away from the roller 16 is fixedly connected to the tooth 413. The tooth 413 is close to the oil carrier plate 44. One side is meshed with the bottom gear 412, and the top of the oil cleaning carrier plate 44 is rotatably connected to the top of the bottom gear 412, and the top gear 414 is meshed with the bottom gear 412. The top gear 414 is fixedly connected to the side of the top gear 414 away from the supporting bottom block 12 with a rotating shaft 415, and a belt 416 is connected to the rotating shaft 415 and the double-threaded reciprocating rod 47 for transmission. An oil cleaning rotary door 417 is rotatably connected to the bottom of the oil cleaning scraper 45 on the covering frame 22, and the oil cleaning rotary door 417 and the dust cleaning rotary door 36 are both electrically controlled by an external control panel to be powered on and off.

[0054] The oil collecting assembly 5 includes an oil collecting bin 51, which is fixedly connected to the outer wall of the covering frame 22. The oil collecting bin 51 is communicated with the interior of the oil pipe 53 and the oil storage device 54, which facilitates the collection of lubricating oil. The bottom surface of the oil collecting bin 51 is set as an inclined surface, and the low point of the inclined surface of the oil collecting bin 51 is close to the side of the oil pipe 53, which facilitates the collection of lubricating oil. The oil collecting assembly 5 also includes a pressurizing device 52, which is fixedly installed on the side of the oil collecting bin 51 close to the center of the bottom plate 11. The pressurizing device 52 is electrically controlled by an external control panel. The oil collecting bin 51 is fixedly connected to the oil pipe 53 on the side away from the supporting bottom block 12, and the oil storage device 54 is fixedly installed on the end of the oil pipe 53 away from the oil collecting bin 51.

[0055] The above implementation works as follows:

[0056] The initial state is as follows: the dust cleaning springs 33 and 43 are not compressed, the dust cleaning bearing plate 34 and the oil cleaning bearing plate 44 are not displaced inside the dust cleaning groove 31 to the end close to the dust cleaning electromagnet 32, the dust cleaning scraper 35 and the oil cleaning scraper 45 are not in contact with the surface of the bearing inner column 14 and the bearing outer frame 15, the oil cleaning screw door 417 and the dust cleaning screw door 36 are not rotating on the covering frame 22, the bottom gear 412 is not displaced on the surface of the latch tooth 413, the sliding block 410 does not slide on the surface of the double-threaded reciprocating rod 47, and the adhesion scraper 411 does not reciprocate on the surface of the oil cleaning scraper 45.

[0057] The steps for running the job are as follows:

[0058] The staff electrically controls the external driving device through the external control panel to drive the roller 16 to rotate, such as Figure 5 - Figure 7 As shown, before the oiling work, the staff electrically controls the dust cleaning electromagnet 32 ​​and the dust cleaning rotary door 36 to be energized through the external control panel. The dust cleaning electromagnet 32 ​​is energized to generate magnetism and attract the dust cleaning carrier plate 34 made of iron. At this time, the dust cleaning scraper 35 is in contact with the opposite surfaces of the bearing inner column 14 and the bearing outer frame 15 under the displacement of the dust cleaning carrier plate 34. At this time, the roller 16 is still in the working rotation state, and then when the roller 16 drives the bearing outer frame 15 fixedly connected thereto to rotate, the dust cleaning scraper 35 scrapes the dust on the surface of the bearing outer frame 15 off the surface of the bearing outer frame 15. At the same time, the dust cleaning rotary door 36 is energized to rotate on the surface of the covering frame 22. At this time, the covering frame 22 and the dust collecting bin 37 are in an internally connected state, and the dust scraped by the dust cleaning scraper 35 enters the dust collecting bin 37 at the bottom of the dust cleaning scraper 35 under the guidance of the dust cleaning scraper 35, and the dust enters the drawer 38 at the bottom of the displacement dust collecting bin 37 under the action of gravity. Inside, at this time, the staff electrically controls the dust cleaning electromagnet 32 ​​and the dust cleaning rotary door 36 through the external control panel to cut off the power. At this time, under the elastic extension of the dust cleaning spring 33 fixedly connected to the opposite surface of the dust cleaning electromagnet 32 ​​and the dust cleaning carrier plate 34, the dust cleaning carrier plate 34 drives the dust cleaning scraper 35 to reset, and the dust cleaning rotary door 36 fits the outer wall of the covering frame 22. Then the staff pulls the drawer 38 to concentrate the dust inside the drawer 38, avoiding the dust and impurities that were not cleaned during oiling to enter the bearing outer frame 15, increase the friction inside the bearing outer frame 15, and cause wear and deterioration of the bearing inner column 14 and the bearing outer frame 15, ensuring that the lubricating oil is fully lubricated and effectively reduces the friction and wear between the bearing inner column 14 and the bearing outer frame 15, ensuring the stability and reliability of the operation of the bearing inner column 14 and the bearing outer frame 15, thereby extending the service life of the bearing inner column 14 and the bearing outer frame 15.

[0059] like Figure 3As shown, the staff then stops the roller 16 from rotating, then removes the outer door block 24 and opens the oil filling outer door 23, then opens and removes the cover 21 to expose the oil filling hole on the surface of the bearing outer frame 15, aligns the oil filling device with the oil filling hole and injects the lubricating oil into the bearing outer frame 15. Since the duration and amount of oil filling need to be judged based on the staff's experience, and human operation is easily affected by the external environment and may lead to misjudgment, the lubricating oil often overflows from the bearing oil filling hole during oil filling. In order to ensure that there is no lubricating oil residue on the surface of the bearing outer frame 15, the staff needs to clean the surface of the bearing outer frame 15 after the oil filling work is completed. When the oil filling is completed, the staff installs the cover 21 and the outer door block 24 to make the inside of the cover frame 22 in a sealed state, as shown in FIG. Figure 5 - Figure 14 As shown, the staff then restores the working rotation state of the roller 16, and electrically controls the oil cleaning electromagnet 42 and the oil cleaning valve 417 through the external control panel. The oil cleaning electromagnet 42 is energized to generate magnetism and adsorb the oil cleaning carrier plate 44 made of iron inside the oil cleaning tank 41. At this time, the oil cleaning scraper 45 is fitted with the opposite surfaces of the bearing inner column 14 and the bearing outer frame 15 under the displacement of the oil cleaning carrier plate 44. At this time, the roller 16 is in the working rotation state, and when the roller 16 drives the bearing outer frame 15 fixedly connected to it to rotate, due to the lubrication Due to the adhesion characteristics of lubricating oil, the scraped lubricating oil adheres to the surface of the oil scraper 45, preventing the lubricating oil from forming a sticky film on the surface of the bearing inner column 14 and the bearing outer frame 15 that absorbs and fixes dust particles, causing wear of the bearing inner column 14 and the bearing outer frame 15, and affecting their normal operation and life. It ensures that the surface of the bearing inner column 14 and the bearing outer frame 15 is clean, provides better lubrication effect, reduces the risk of wear and damage to the bearing inner column 14 and the bearing outer frame 15, and extends the service life of the bearing inner column 14 and the bearing outer frame 15.

[0060] like Figure 11 - Figure 13As shown, when the oil-clearing carrier plate 44 is displaced toward the bearing outer frame 15, the bottom gear 412 connected thereto is displaced and rotated on the surface of the engaging teeth 413 with which it is meshed. When the bottom gear 412 rotates, it drives the top gear 414 meshed therewith to rotate together. Since the diameter of the top gear 414 is smaller than that of the bottom gear 412, the top gear 414 rotates more circles than the bottom gear 412 while rotating. When the top gear 414 is connected to the double-threaded reciprocating rod 47 through the rotating shaft 415 and the belt 416, the double-threaded reciprocating rod 47 is affected by the transmission of the top gear 414 and its rotation rate is faster than the displacement rate of the bottom gear 412 on the surface of the engaging teeth 413, so that the double-threaded reciprocating rod 47 can rotate within the rated time. It can rotate more circles because the displacement rate of the bottom gear 412 on the surface of the latch tooth 413 is the same as the displacement rate of the oil scraper 45 toward the surface of the bearing outer frame 15, and because the material of the oil scraper 45 is soft rubber, the oil scraper 45 will compress its own height and continue to descend after reaching the surface of the bearing outer frame 15. While the double-threaded reciprocating rod 47 rotates, it drives the sliding block 410 slidably connected to its surface to move along its direction. The sliding block 410 drives the top plate 49 to which it is rotatably connected to move together. Under the guiding action of the auxiliary rods 48 slidably connected to the top plate 49 on both sides of the double-threaded reciprocating rod 47, the top plate 49 is not affected by the deflection force generated when the sliding block 410 slides on the surface of the double-threaded reciprocating rod 47. When the sliding block 410 is displaced to the two ends of the double-threaded reciprocating rod 47 under the rotation of the double-threaded reciprocating rod 47, since the texture on the surface of the double-threaded reciprocating rod 47 is set to be connected in two reverse directions, the sliding block 410 will enter another sliding texture under the influence of the texture of the double-threaded reciprocating rod 47 and move in the opposite direction to the previous one. While the sliding block 410 moves in the opposite direction, it drives the adhesion scraper 411 on the surface of the oil cleaning scraper 45 to move in the same opposite direction through the top plate 49. Due to the setting of the top gear 414, the double-threaded reciprocating rod 47 can rotate more circles within the rated time, and then when the oil cleaning scraper 45 is close to the surface of the bearing outer frame 15, it will compress its own height and continue to descend. 5's surface continuously makes reciprocating motion. Since the staff has electrically controlled the rotation of the oil cleaning rotary door 417, the lubricating oil adhered to the surface of the oil cleaning scraper 45 enters the oil collecting bin 51 at the bottom thereof under the influence of the reciprocating motion of the adhesion scraper 411 and the gravity of the lubricating fluid itself, thereby preventing the overflowed lubricating oil from being stirred to form foam on the surfaces of the bearing inner column 14 and the bearing outer frame 15 under the influence of the high temperature working environment, thereby increasing the friction between the bearing inner column 14 and the bearing outer frame 15, and causing the bearing inner column 14 and the bearing outer frame 15 to overheat and be damaged. This ensures the stability and reliability of the oil-filled turning roller assembly and guarantees the cleanliness and normal operation of the bearing inner column 14 and the bearing outer frame 15.

[0061] At this time, the staff electrically controls the oil cleaning electromagnet 42 and the oil cleaning valve 417 through the external control panel to cut off the power, so that the oil cleaning component 4 is reset, and then electrically controls the pressurizing device 52 through the external control panel to energize. The pressurizing device 52 is energized to operate to pressurize the inside of the oil collecting bin 51. At this time, the oil cleaning valve 417 is reset, and the bottom of the oil collecting bin 51 is inclined to the side of the oil delivery pipe 53. Under the high pressure caused by the pressure inside the oil collecting bin 51, the lubricating oil is displaced toward the low-pressure oil delivery pipe 53. The lubricating oil is displaced through the oil delivery pipe 53 to the oil storage device 54 connected to the inside thereof until the lubricating oil stays inside the oil storage device 54. At this time, the residual lubricating oil on the surface of the bearing outer frame 15 is collected and concentrated, avoiding the situation where the residual lubricating oil is not recycled and needs to be discarded and new lubricating oil is purchased to replace it, which increases the financial expenditure of the project. It avoids the staff from directly contacting the lubricating oil, which causes harmful substances in the lubricating oil to endanger the staff, thereby ensuring the work safety of the staff.

[0062] Then the staff electrically controls the pressurizing device 52 through the external control panel to cut off the power, and the oil filling work is completed.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0064] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An oil-injected turning roller group for a tunnel boring machine, comprising a base plate (11) and a supporting base block (12), wherein the supporting base block (12) is symmetrically fixedly connected to the top of the base plate (11), two supporting base blocks (12) are provided, and both ends of the top of the base plate (11) are fixedly connected to a supporting high rod (13), one end of the supporting base block (12) close to the center of the base plate (11) is fixedly connected to a bearing inner column (14), a surface of the bearing inner column (14) is rotatably connected to a bearing outer frame (15), and a roller (16) is fixedly connected to the side of the bearing outer frame (15) close to the center of the base plate (11), characterized in that: The top of the base plate (11) is provided with an outer frame assembly (2) for covering dust and excess lubricating oil, the top of the base plate (11) is provided with a dust cleaning assembly (3) for cleaning dust on the surface of the bearing inner column (14) and the bearing outer frame (15), the top of the base plate (11) is provided with an oil cleaning assembly (4) for cleaning excess lubricating oil on the surface of the bearing inner column (14) and the bearing outer frame (15), and the top of the base plate (11) is provided with an oil collecting assembly (5) for collecting excess lubricating oil on the surface of the bearing inner column (14) and the bearing outer frame (15); the outer frame assembly (2) includes a cover (21) and a covering frame (22), the cover (21) is fixedly mounted on a side of the bearing outer frame (15) close to the supporting bottom block (12), and the covering frame (22) is fixedly connected to the bearing The outer frame (15) is close to one side of the covering frame (22); the dust cleaning component (3) includes a dust cleaning groove (31) and a dust cleaning electromagnet (32), the dust cleaning groove (31) is opened at one end of the supporting bottom block (12) close to the bearing inner column (14), and the dust cleaning electromagnet (32) is fixedly connected to one end of the dust cleaning groove (31) close to the roller (16); the oil cleaning component (4) includes an oil cleaning groove (41) and an oil cleaning electromagnet (42), the oil cleaning groove (41) is opened at one end of the supporting bottom block (12) close to the bearing inner column (14), and the oil cleaning electromagnet (42) is fixedly connected to one end of the dust cleaning groove (31) close to the roller (16); the oil collecting component (5) includes an oil collecting bin (51), and the oil collecting bin (51) is fixedly connected to the outer wall of the covering frame (22); The dust cleaning assembly (3) further comprises a dust cleaning spring (33), the dust cleaning spring (33) being fixedly connected to one end of the dust cleaning electromagnet (32) away from the roller (16), the dust cleaning spring (33) being fixedly connected to one end of the dust cleaning bearing plate (34) away from the roller (16), the dust cleaning bearing plate (34) being fixedly connected to a dust cleaning scraper (35) on one side close to the bearing outer frame (15), a dust cleaning rotary door (36) being rotatably connected to the bottom of the dust cleaning scraper (35) on the cover frame (22), a dust collecting bin (37) being fixedly connected to the surface of the cover frame (22) and located at the bottom of the supporting bottom block (12), and a drawer (38) being slidably connected to the bottom of the dust collecting bin (37); The oil cleaning component (4) further comprises an oil cleaning spring (43), the oil cleaning spring (43) being fixedly connected to the end of the oil cleaning electromagnet (42) away from the roller (16), the end of the oil cleaning spring (43) away from the roller (16) being fixedly connected to an oil cleaning bearing plate (44), the side of the oil cleaning bearing plate (44) close to the bearing outer frame (15) being fixedly connected to an oil cleaning scraper (45), the side of the oil cleaning bearing plate (44) away from the oil cleaning scraper (45) being symmetrically fixedly connected to the oil cleaning scraper (45) There are two vertical plates (46), and the opposite surfaces of the two vertical plates (46) are rotatably connected to the double-threaded reciprocating rod (47). The opposite surfaces of the two vertical plates (46) are symmetrically fixedly connected to two auxiliary rods (48) with the double-threaded reciprocating rod (47) as a reference. The surface of the double-threaded reciprocating rod (47) is slidably connected to a sliding block (410). The end of the sliding block (410) away from the double-threaded reciprocating rod (47) is rotatably connected to a top plate (49). The top plate (49) is close to the cleaning One side of the oil scraper (45) is symmetrically fixedly connected to an adhesive scraper (411) with a double-threaded reciprocating rod (47) as a reference. The side of the oil cleaning carrier plate (44) close to the dust cleaning carrier plate (34) is rotatably connected to a bottom gear (412). The side of the bearing inner column (14) away from the roller (16) is fixedly connected to a latching tooth (413). The side of the latching tooth (413) close to the oil cleaning carrier plate (44) is meshed with the bottom gear (412). The oil cleaning carrier plate (44) A top gear (414) is rotatably connected to the top of the bottom gear (412), and the top gear (414) and the bottom gear (412) are meshed with each other. A rotating shaft (415) is fixedly connected to the side of the top gear (414) away from the supporting bottom block (12). A belt (416) is connected between the rotating shaft (415) and the double-threaded reciprocating rod (47). An oil cleaning rotary door (417) is rotatably connected to the bottom of the oil cleaning scraper (45) on the covering frame (22); An oil filling hole is provided on the opposite surface of the bearing outer frame (15) and the sealing cover (21).

2. The oil-injected turning roller assembly for a tunnel boring machine according to claim 1, characterized in that: The outer frame assembly (2) further comprises an oil filling outer door (23), the oil filling outer door (23) being rotatably connected to a side of the cover frame (22) away from the sealing cover (21), an outer door clamping block (24) being fixedly mounted on the surface of the cover frame (22), the outer door clamping block (24) being in contact with the opposite surface of the oil filling outer door (23).

3. The oil-injected turning roller assembly for a tunnel boring machine according to claim 2, characterized in that: The oil collecting assembly (5) further comprises a pressurizing device (52), which is fixedly mounted on a side of the oil collecting bin (51) close to the center of the bottom plate (11). An oil delivery pipe (53) is fixedly connected to a side of the oil collecting bin (51) away from the supporting bottom block (12), and an oil storage device (54) is fixedly mounted on an end of the oil delivery pipe (53) away from the oil collecting bin (51).

4. The oil-injected turning roller assembly for a tunnel boring machine according to claim 3, characterized in that: The dust cleaning electromagnet (32) and the oil cleaning electromagnet (42) are both electrically controlled on and off by an external control panel, and the pressurizing device (52) is also electrically controlled on and off by the external control panel.

5. The oil-injected turning roller assembly for a tunnel boring machine according to claim 4, characterized in that: The material of the dust cleaning bearing plate (34) and the oil cleaning bearing plate (44) is set to iron, the material of the oil cleaning scraper (45) and the dust cleaning scraper (35) is set to soft rubber, the opposite surface of the adhesive scraper (411) and the oil cleaning scraper (45) are in contact with each other, the texture of the surface of the double-threaded reciprocating rod (47) is set to be a staggered bidirectional thread, and the oil cleaning rotary door (417) and the dust cleaning rotary door (36) are both electrically controlled to be on and off by an external control panel.

6. The oil-injected turning roller assembly for a tunnel boring machine according to claim 5, characterized in that: The oil collecting bin (51) is in communication with the oil delivery pipe (53) and the interior of the oil storage device (54). The bottom surface of the oil collecting bin (51) is arranged as an inclined surface, and the lowest point of the inclined surface of the oil collecting bin (51) is close to one side of the oil delivery pipe (53).

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