A TBM main drive lip seal lubrication assist apparatus and method of use thereof

Abstract

The application discloses a TBM main driving lip seal lubrication auxiliary equipment and a using method thereof, which comprises a mounting mechanism, wherein the mounting mechanism comprises a first mounting frame, a second mounting frame and a rotating part, a plurality of first connecting blocks are fixedly connected to the outer surface of the first mounting frame at equal intervals, a plurality of second connecting blocks are fixedly connected to the outer surface of one side of the second mounting frame at equal intervals, each second connecting block and the outer surface of one side of the corresponding first connecting block are fixedly connected through bolts, one end of the second mounting frame extends into the first mounting frame, and the rotating part is arranged on the first mounting frame. In the application, when in use, the gear ring of the existing TBM drive is sleeved on the outer surface of the connecting disc, the connecting disc and the cutter disc of the existing TBM drive are stably connected through bolts, the driving gear of the existing TBM drive is sleeved on the outer surface of the connecting shaft, and then the connecting shaft is connected with the motor equipment of the existing TBM drive through the coupling body.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of construction lubricating equipment, and particularly relates to a TBM main drive lip seal lubricating auxiliary equipment and a use method thereof. BACKGROUND

[0002] TBM is short for tunnel boring machine, which is widely used in the industries of railway tunnel, water conservancy tunnel, urban subway and the like, but in recent years, new TBMs such as inclined shaft TBM, vertical shaft TBM, miniature TBM, super-large diameter TBM, composite TBM and special-shaped section TBM have begun to be researched and applied, and great progress is being made in the application field, and the technology will be popularized after being mature.

[0003] However, in the prior art, once the main bearing of the existing TBM equipment is damaged in the actual use process of the existing TBM equipment, the construction period, cost and replacement difficulty caused by the TBM are immeasurable, and the loss is huge. The sealing effect of the lip seal directly determines the service life thereof, and when the seal is worn, the fine stone chippings are easily led into the gear box lubricated by the main bearing, thereby causing damage to the main bearing and indirectly affecting the service life of the main bearing, so that the use effect of the existing TBM equipment lubricating auxiliary equipment is poor. SUMMARY

[0004] The application aims to provide a TBM main drive lip seal lubricating auxiliary equipment and a use method thereof, which can improve the sealing effect of the lubricating equipment, is not prone to causing damage to the sealing effect, can effectively prevent the influence of fine stone chippings on the gear box of the existing TBM equipment, and improves the actual service life of the existing TBM equipment.

[0005] The technical scheme adopted by the application is as follows: a TBM main drive lip seal lubricating auxiliary equipment, comprising: a mounting mechanism, the mounting mechanism comprising a first mounting frame, a second mounting frame and a rotating part, a plurality of first connecting blocks are fixedly connected to the outer surface of the first mounting frame at equal intervals, a plurality of second connecting blocks are fixedly connected to the outer surface of one side of the second mounting frame at equal intervals, each second connecting block and the outer surface of one side of the corresponding first connecting block are fixedly connected through bolts, and one end of the second mounting frame extends into the first mounting frame, and the rotating part is arranged on the first mounting frame; and

[0006] a conveying mechanism, the conveying mechanism comprising a filter frame, a liquid injection pipe and a liquid suction pipe, the filter frame is fixedly connected to the outer surface of one side of the first mounting frame, one end of the liquid injection pipe penetrates through the outer surface of one side of the first mounting frame, one end of the liquid suction pipe penetrates through the outer surface of one side of the first mounting frame, a filter plate is fixedly connected to the inner surface wall of one side of the filter frame, a first shielding plate is fixedly connected to the outer surface of one side of the filter plate, a collecting frame is slidingly inserted into the outer surface of one side of the filter frame, and a second shielding plate is fixedly connected to the outer surface of one side of the filter frame.

[0007] Among them, the rotating component includes a connecting shaft and a rotating ring. There are multiple connecting shafts in total. The multiple connecting shafts are rotatably connected to the outer surface of one side of the first installation frame, and one end of each connecting shaft extends to the inside of the first installation frame. One end of each connecting shaft is fixedly connected to the coupling body, and the rotating ring is rotatably connected to the first installation frame.

[0008] A gasket is fixedly connected to the inner surface wall of one side of the first installation frame, and a plurality of reset frames are fixedly connected to the inner surface wall of one side of the second installation frame at equal intervals.

[0009] Wherein, a reset spring and a push piece are slidably embedded in the interior of each reset frame, a push rod is fixedly connected to the outer surface of one side of each push piece, and a pressure ring is fixedly connected between one ends of multiple push rods.

[0010] A current limiting ring is inserted into the pressure ring, one end of the current limiting ring extends into the gasket, and a plurality of connection ports are equidistantly provided on the outer surface of the current limiting ring.

[0011] Wherein, a connecting disk is sleeved on the outer surface of the rotating ring, and a clamping ring is threadedly connected to the outer surface of one side of the second installation frame.

[0012] A plurality of mounting brackets are evenly spaced through the inner wall of one side of the second mounting frame, a liquid guide tube is inserted into each mounting bracket, and a scraper is slidably inserted into the outer surface of one side of each mounting bracket.

[0013] Among them, one end of the injection tube is connected to a liquid injection one-way valve, the outer surface of the liquid extraction tube is connected to a control valve, one end of the liquid extraction tube extends to the inside of the filter frame, and the top end of the liquid extraction tube slides through the bottom surface of the filter plate.

[0014] A booster pump is fixedly connected to the outer surface of one side of the first mounting frame, and the input end of the booster pump is connected to a first connecting pipe, one end of the first connecting pipe extends to the interior of the filter frame, and one end of the first connecting pipe passes through the top of the filter plate, and the output end of the booster pump is connected to a second connecting pipe, and one end of the second connecting pipe is fixedly connected to the input end of the injection one-way valve.

[0015] A method for using a TBM main drive lip seal lubrication auxiliary device comprises the following steps:

[0016] S1. Lubrication setting: The gear ring of the existing TBM drive is sleeved on the outer surface of the connecting plate, and the connecting plate and the existing TBM drive cutter head are firmly connected by bolts, and the driving gear of the existing TBM drive is sleeved on the outer surface of the connecting shaft, and then the connecting shaft is connected to the motor device of the existing TBM drive through the coupling body, and then the device is firmly hung and connected to the inner wall structure of the existing TBM device through the first mounting frame and the second mounting frame, and then when the motor device driven by the existing TBM is controlled to start, the motor device driven by the existing TBM can drive the connecting shaft to rotate through the coupling body, so that the rotating connecting shaft can drive the gear ring of the existing TBM drive through the driving gear of the existing TBM drive. The first mounting frame and the second mounting frame are connected to the clamping ring of the TBM, and the clamping ring is connected to the clamping ring of the TBM, so that the clamping ring can rotate, thereby causing the ring gear of the existing TBM to drive the connecting disk to rotate, and the rotating connecting disk can drive the cutter head of the existing TBM to rotate. At the same time, the liquid guide tube can be effectively connected to the existing liquid injection equipment, so that the scraper at one end of the mounting frame can scrape the residue on the surface of the driving gear of the existing TBM drive, and the liquid guide tube can inject high-speed flowing lubricating liquid into the meshing part of the driving gear of the existing TBM drive and the ring gear of the existing TBM drive, thereby preventing the meshing part from being affected by the accidental entry of stone chips, and can inject a proper amount of lubricating liquid into the sealed space formed between the first mounting frame, the second mounting frame and the clamping ring, so that the lubricating liquid can immerse the filter plate and all the driving gears of the existing TBM drive;

[0017] S2. Protection control: By controlling the start-up of the booster pump, the booster pump can re-inject the lubricating liquid filtered by the filter plate into the injection pipe through the first connecting pipe and the second connecting pipe, and then re-inject it between the flow limiting ring and the existing TBM drive gear ring. When the existing TBM drive gear ring rotates, the position of the flow limiting ring can be restricted, so that the lubricating liquid on the outside of the existing TBM drive gear ring can form a flow effect, thereby preventing stone chips from accidentally entering and adhering to the outside of the existing TBM drive gear ring.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] In the application, when in use, the existing TBM driven gear ring is sleeved on the outer surface of the connecting disc, and is stably connected with the existing TBM driven cutter through the connecting disc and bolts, and the existing TBM driven driving gear is sleeved on the outer surface of the connecting shaft, and then the connecting shaft is connected with the existing TBM driven motor equipment through the coupling body, and then the equipment is stably hung and connected with the inner wall structure of the existing TBM equipment through the first mounting frame and the second mounting frame, and then when the existing TBM driven motor equipment is started, the existing TBM driven motor equipment can effectively drive the connecting shaft to rotate through the coupling body, so that the rotating connecting shaft can effectively drive the existing TBM driven gear ring to rotate through the existing TBM driven driving gear, and then the existing TBM driven gear ring can effectively drive the connecting disc to rotate, so that the rotating connecting disc can effectively drive the existing TBM driven cutter to rotate, so that the existing TBM equipment can normally realize the required functions, and the liquid guide pipe can be effectively connected with the existing liquid injection equipment, and then the installation rack one end scraper can scrape the residual on the surface of the existing TBM driven driving gear, so that the liquid guide pipe can inject high-speed flowing lubricating liquid into the meshing part of the existing TBM driven driving gear and the existing TBM driven gear ring, thereby effectively preventing the meshing part from being affected by accidentally entering stone chips, and the appropriate amount of lubricating liquid can be injected into the sealing space formed between the first mounting frame, the second mounting frame and the retainer, so that the lubricating liquid can effectively immerse the filter plate and all existing TBM driven driving gears, and then the booster pump can be started, so that the booster pump can re-inject the filtered lubricating liquid into the liquid injection pipe through the first connecting pipe and the second connecting pipe, and then re-inject the liquid injection pipe between the liquid injection pipe and the existing TBM driven gear ring, so that the lubricating liquid on the outside of the existing TBM driven gear ring can flow under the limitation of the liquid injection pipe during the rotation of the existing TBM driven gear ring, thereby effectively preventing accidental stone chips from adhering to the outside of the existing TBM driven gear ring, so that the equipment can be efficiently lubricated and assisted, and the influence of external stone chips can be effectively prevented, thereby effectively prolonging the service life of the existing TBM equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a front view of the application;

[0021] Figure 2 It is a rear view of the application;

[0022] Figure 3 It is a front view of the application;

[0023] Figure 4 It is a front view of the application;

[0024] Figure 5Enlarged view of part A in Figure 4

[0025] Figure 6 Enlarged view of part B in Figure 4

[0026] Figure 7 Rear perspective view of the present application.

[0027] Marked in the figure: 1, first mounting frame; 2, linkage shaft; 3, rotating ring; 4, connecting disc; 5, gasket; 6, compression ring; 7, current limiting ring; 8, second mounting frame; 9, clamping ring; 10, mounting frame; 11, liquid guide pipe; 12, scraper; 13, reset frame; 14, abutting piece; 15, reset spring; 16, filter frame; 17, filter plate; 18, liquid suction pipe; 19, first shutter; 20, second shutter; 21, collection frame; 22, first connecting pipe; 23, booster pump; 24, liquid injection pipe; 25, coupling body. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application.

[0029] Example one

[0030] Referring to Figures 1-7 ​​The utility model provides a kind of TBM main drive lip seal lubrication auxiliary equipment, comprising: mounting mechanism and conveying mechanism, the mounting mechanism includes first mounting frame 1, second mounting frame 8 and rotating part, the establishment cooperation of first mounting frame 1 provides the installation setting basis of other functional components of equipment with second mounting frame 8, while cooperation collar 9 and connecting disc 4 can form effective seal storage space, a plurality of first connecting blocks are fixedly connected with the outer surface of first mounting frame 1 at equal intervals, the establishment cooperation of first connecting block facilitates the stable connection of first mounting frame 1 and second mounting frame 8 with second connecting block, a plurality of second connecting blocks are fixedly connected with the outer surface of second mounting frame 8 on one side at equal intervals, each second connecting block and the outer surface of corresponding first connecting block on one side are fixedly connected by bolt, and second mounting frame 8 extends to the inside of first mounting frame 1 on one end, rotating part is set on first mounting frame 1, and conveying mechanism includes filter frame 16, liquid injection pipe 24 and liquid suction pipe 18, the establishment of filter frame 16 facilitates the installation setting of other functional components of equipment, while temporary storage of lubricating liquid can be temporarily carried out, the establishment of liquid injection pipe 24 can inject lubricating liquid to the inside of first mounting frame 1, the establishment of liquid suction pipe 18 can suck the lubricating liquid containing stone chips to filter frame 16, filter frame 16 is fixedly connected on the outer surface of one side of first mounting frame 1, one end of liquid injection pipe 24 penetrates the outer surface of one side of first mounting frame 1, one end of liquid suction pipe 18 penetrates the outer surface of one side of first mounting frame 1, filter plate 17 is fixedly connected on the inner surface wall of one side of filter frame 16, the establishment of filter plate 17 can effectively separate the stone chips in lubricating liquid, first shutter 19 is fixedly connected on the outer surface of one side of filter plate 17, the establishment of first shutter 19 facilitates the removal of collection frame 21 with second shutter 20, collection frame 21 is slidably inserted on the outer surface of one side of filter frame 16, the establishment of collection frame 21 facilitates the precipitation collection of stone chips, second shutter 20 is fixedly connected on the outer surface of one side of filter frame 16.

[0031] Reference Figures 3-7: The rotating part comprises a linkage shaft 2 and a rotating ring 3. The linkage shaft 2 is arranged to facilitate the installation of the driving gear of the existing TBM drive. The rotating ring 3 is arranged to facilitate the installation of the gear ring of the existing TBM drive. The linkage shaft 2 is arranged in multiple. The multiple linkage shafts 2 are all rotationally connected to the outer surface of one side of the first mounting frame 1. The one end of each linkage shaft 2 extends to the inside of the first mounting frame 1. The one end of each linkage shaft 2 is fixedly connected with a shaft coupling body 25. The shaft coupling body 25 is arranged to enable the motor equipment of the existing TBM drive to be stably connected with the linkage shaft 2. The rotating ring 3 is rotationally connected to the first mounting frame 1. The inner wall of one side of the first mounting frame 1 is fixedly connected with a gasket 5. The gasket 5 is arranged to facilitate the installation of the flow limiting ring 7 in cooperation with the pressing ring 6. The inner wall of one side of the second mounting frame 8 is fixedly connected with multiple reset frames 13 at equal intervals. The reset frame 13 is arranged to facilitate the installation of other functional components of the equipment. The inside of each reset frame 13 is slidably embedded with a reset spring 15 and a pressing piece 14. The reset spring 15 is arranged to effectively support the pressing piece 14. The pressing piece 14 is arranged to facilitate the installation of the pressing rod. The outer surface of one side of each pressing piece 14 is fixedly connected with a pressing rod. The pressing rod is arranged to facilitate the installation of the pressing ring 6 and effectively control the use position of the pressing ring 6. The one end of the multiple pressing rods is fixedly connected with the pressing ring 6. The inside of the pressing ring 6 is inserted with the flow limiting ring 7. The flow limiting ring 7 is arranged to enable the rotating gear ring of the existing TBM drive to drive the outside lubricating liquid to flow, thereby preventing the deposition of stone chips. The one end of the flow limiting ring 7 extends to the inside of the gasket 5. The outer surface of the flow limiting ring 7 is provided with multiple connecting ports at equal intervals. The connecting ports are arranged to enable the driving gear of the existing TBM drive and the gear ring of the existing TBM drive to be normally engaged. The outer surface of the rotating ring 3 is sleeved with a connecting disc 4. The connecting disc 4 is arranged to enable the equipment to be effectively connected with the cutter head of the existing TBM equipment. The outer surface of one side of the second mounting frame 8 is threadedly connected with a clamping ring 9. The clamping ring 9 is arranged to effectively extrude the use position of the moving pressing ring 6 and simultaneously cooperate with the connecting disc 4 to seal the inside of the first mounting frame 1 and the second mounting frame 8. The inner wall of one side of the second mounting frame 8 is penetrated by multiple mounting racks 10 at equal intervals. The mounting rack 10 is arranged to facilitate the installation of other functional components of the equipment. The inside of each mounting rack 10 is inserted with a liquid guide pipe 11. The liquid guide pipe 11 is arranged to effectively inject lubricating liquid into the inside of the first mounting frame 1 and the second mounting frame 8. The outer surface of one side of each mounting rack 10 is slidably inserted with a scraping piece 12. The scraping piece 12 is arranged to effectively clean the surface of the driving gear of the existing TBM drive. The one end of the liquid injection pipe 24 is communicated with a liquid injection check valve. The liquid injection check valve is arranged to effectively prevent the backflow of the lubricating liquid. The outer surface of the liquid suction pipe 18 is communicated with a control valve. The control valve is arranged to effectively control the communication and shutdown of the liquid suction pipe 18. The one end of the liquid suction pipe 18 extends to the inside of the filter frame 16. The top end of the liquid suction pipe 18 slidably penetrates the bottom surface of the filter plate 17. The outer surface of one side of the first mounting frame 1 is fixedly connected with a booster pump 23.The booster pump 23 can effectively move and transport the lubricating liquid. The input end of the booster pump 23 is connected with the first connecting pipe 22, and the first connecting pipe 22 is connected with the second connecting pipe, so that the booster pump 23 can effectively move and transport the lubricating liquid. One end of the first connecting pipe 22 extends into the filter frame 16, and the other end of the first connecting pipe 22 penetrates through the top of the filter plate 17. The output end of the booster pump 23 is connected with the second connecting pipe, and one end of the second connecting pipe is fixedly connected with the input end of the liquid injection one-way valve.

[0032] The use method of the TBM main drive lip seal lubrication auxiliary equipment provided by the embodiment of the application will be described in detail below. The use method includes the following steps.

[0033] Step one, lubrication setting: the existing TBM drive gear ring is sleeved on the outer surface of the connecting disc 4, and the connecting disc 4 and the existing TBM drive cutter are stably connected by bolts. The existing TBM drive gear is sleeved on the outer surface of the connecting shaft 2, and the connecting shaft 2 is connected with the existing TBM drive motor equipment through the shaft coupling body 25. The equipment is stably hung and connected with the inner wall structure of the existing TBM equipment through the first mounting frame 1 and the second mounting frame 8. When the existing TBM drive motor equipment is started, the existing TBM drive motor equipment can effectively drive the connecting shaft 2 to rotate through the shaft coupling body 25, so that the rotating connecting shaft 2 can effectively drive the existing TBM drive gear ring to rotate through the existing TBM drive gear, and the existing TBM drive gear ring can effectively drive the connecting disc 4 to rotate, so that the rotating connecting disc 4 can effectively drive the existing TBM drive cutter to rotate, so that the existing TBM equipment can normally realize the required functions. The liquid guide pipe 11 can be effectively connected with the existing liquid injection equipment, so that the end scraper 12 of the mounting bracket 10 can scrape off the residual on the surface of the existing TBM drive gear, and the liquid guide pipe 11 can inject high-speed flowing lubricating liquid into the meshing part of the existing TBM drive gear and the existing TBM drive gear ring, so as to effectively prevent the meshing part from being affected by the accidental entry of stone chips, and the appropriate amount of lubricating liquid can be injected into the sealing space formed between the first mounting frame 1, the second mounting frame 8 and the collar 9, so that the lubricating liquid can effectively immerse the filter plate 17 and all the existing TBM drive gears.

[0034] Step two, protection control: by controlling the start of the booster pump 23, and then the booster pump 23 can be through the first connecting pipe 22 and the second connecting pipe, after the filter plate 17 filtered lubricating liquid injection pipe 24, and then re-injection of the flow circle 7 and the existing TBM drive gear ring between, when the existing TBM drive gear ring rotates in the position of the flow circle 7 limit, can make the existing TBM drive gear ring outside lubricating liquid flow effect, and effectively prevent the accidental entry of stone attached to the existing TBM drive gear ring outside, so that the equipment can effectively lubricating auxiliary processing, while effectively prevent the influence of external stone, effectively prolong the service life of the existing TBM equipment.

[0035] The above only for the preferred embodiments of the present application, and not to limit the present application, any modification, equivalent replacement and improvement within the spirit and principles of the present application, etc., should be included in the scope of protection of the present application.

Claims

1. A TBM main drive lip seal lubrication assist apparatus, characterized by, The utility model relates to a kind of installation mechanism, including first installation frame (1), second installation frame (8) and rotating component, the outer surface of the first installation frame (1) equidistantly fixed connection has multiple first connecting blocks, the outer surface of the one side of the second installation frame (8) equidistantly fixed connection has multiple second connecting blocks, every second connecting block and corresponding first connecting block one side outer surface between by bolt fixed connection, and second installation frame (8) one end extends to the inside of first installation frame (1), the rotating component is set on first installation frame (1), and the rotating component includes linkage shaft (2) and rotating ring (3);With ​ The conveying mechanism comprises a filter frame (16), a liquid injection pipe (24) and a liquid suction pipe (18), the filter frame (16) is fixedly connected to the outer surface of one side of the first mounting frame (1), one end of the liquid injection pipe (24) penetrates through the outer surface of one side of the first mounting frame (1), one end of the liquid suction pipe (18) penetrates through the outer surface of one side of the first mounting frame (1), the inner wall of one side of the filter frame (16) is fixedly connected with a filter plate (17), the outer surface of one side of the filter plate (17) is fixedly connected with a first shielding plate (19), the outer surface of one side of the filter frame (16) is slidably inserted with a collection frame (21), the outer surface of one side of the filter frame (16) is fixedly connected with a second shielding plate (20), the inner wall of one side of the first mounting frame (1) is fixedly connected with a gasket (5), the inner wall of one side of the second mounting frame (8) is fixedly connected with a plurality of reset frames (13) at equal intervals, the reset spring (15) and the abutting piece (14) are slidably embedded in the inside of each reset frame (13), the outer surface of one side of each abutting piece (14) is fixedly connected with an abutting rod, the abutting rods are fixedly connected with a pressing ring (6) at one end, the inside of the pressing ring (6) is inserted with a flow limiting ring (7), one end of the flow limiting ring (7) extends into the inside of the gasket (5), a plurality of connecting ports are formed in the outer surface of the flow limiting ring (7) at equal intervals, the outer surface of the rotating ring (3) is sleeved with a connecting disc (4), the outer surface of one side of the second mounting frame (8) is threadedly connected with a clamping ring (9), the inner wall of one side of the second mounting frame (8) penetrates a plurality of mounting racks (10) at equal intervals, the inside of each mounting rack (10) is inserted with a liquid guide pipe (11), the outer surface of one side of each mounting rack (10) is slidably inserted with a scraping piece (12), the liquid injection pipe (24) is provided with a liquid injection check valve at one end, the outer surface of the liquid suction pipe (18) is provided with a control valve, one end of the liquid suction pipe (18) extends into the inside of the filter frame (16), and the top end of the liquid suction pipe (18) slidably penetrates through the bottom surface in the inside of the filter plate (17), the outer surface of one side of the first mounting frame (1) is fixedly connected with a booster pump (23), the input end of the booster pump (23) is provided with a first connecting pipe (22), one end of the first connecting pipe (22) extends into the inside of the filter frame (16), and one end of the first connecting pipe (22) penetrates through the top of the filter plate (17), the output end of the booster pump (23) is provided with a second connecting pipe, and one end of the second connecting pipe is fixedly connected with the input end of the liquid injection check valve.

2. A TBM main drive lip seal lubrication assist apparatus as claimed in claim 1, characterized in that: A plurality of the connecting shafts (2) are provided, and the connecting shafts (2) are all rotationally connected to the outer surface of one side of the first mounting frame (1), and one end of each connecting shaft (2) extends into the inside of the first mounting frame (1), and the input end of the booster pump (23) is provided with a first connecting pipe (22).

3. A method of using a TBM main drive lip seal lubrication assist apparatus, characterized by, The application is applied to the TBM main drive lip seal lubrication auxiliary equipment in any one of claims 1-2, comprising the following steps: S1, lubrication setting: the existing TBM driven gear ring is sleeved on the outer surface of the connecting disc (4), and is stably connected with the existing TBM driven cutter through the connecting disc (4) and the existing TBM driven cutter through bolts, and the existing TBM driven driving gear is sleeved on the outer surface of the connecting shaft (2), and then the connecting shaft (2) is connected with the existing TBM driven motor equipment through the shaft coupling body (25), and then the equipment is stably hung and connected with the inner wall structure of the existing TBM equipment through the first mounting frame (1) and the second mounting frame (8), and then when the existing TBM driven motor equipment is started, the existing TBM driven motor equipment can drive the connecting shaft (2) to rotate through the shaft coupling body (25), so that the rotating connecting shaft (2) can drive the existing TBM driven gear ring to rotate through the existing TBM driven driving gear, and then the existing TBM driven gear ring can drive the connecting disc (4) to rotate, so that the rotating connecting disc (4) can drive the existing TBM driven cutter to rotate, and the liquid guide pipe (11) can be effectively connected with the existing liquid injection equipment, and then the end scraper (12) of the mounting frame (10) can scrape the residual on the surface of the existing TBM driven driving gear, so that the liquid guide pipe (11) can inject high-speed flowing lubricating liquid into the meshing part of the existing TBM driven driving gear and the existing TBM driven gear ring, thereby preventing the meshing part from being affected by accidental stone chips, and injecting an appropriate amount of lubricating liquid into the sealed space formed between the first mounting frame (1), the second mounting frame (8) and the collar (9), so that the lubricating liquid can immerse the filter plate (17) and all the existing TBM driven driving gears; S2, protection control: by controlling the start of the booster pump (23), the booster pump (23) can inject the lubricating liquid filtered by the filter plate (17) into the liquid injection pipe (24) through the first connecting pipe (22) and the second connecting pipe, and then re-inject it between the current limiting ring (7) and the existing TBM driven gear ring, so that the lubricating liquid on the outside of the existing TBM driven gear ring can form a flowing effect under the limitation of the current limiting ring (7) during the rotation of the existing TBM driven gear ring, thereby preventing accidental stone chips from adhering to the outside of the existing TBM driven gear ring.

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