CN1821602A - High-performance water-lubricated mechanical transmission system - Google Patents

Abstract

The high performance water lubricated mechanical driving system based on new type of composite engineering material includes a high elasticity shaft coupler, a sealing device, a front water lubricated bearing, a back water lubricated bearing, and a water supplying system. It his natural water as lubricating medium and has or has not dynamic sealing device mounted through the back water lubricated bearing to constitute a closed or opened water lubricated mechanical driving system. Compared with traditional mechanical driving system, the high performance water lubricated mechanical driving system has greatly lowered friction, wear, vibration, noise and no-work loss, greatly raised reliability, saving in mineral oil and noble metal material, and environment friendship, and may be applied widely.

Description

High-performance water-lubricated mechanical transmission system

technical field

The invention belongs to the field of mechanical transmission in mechanical engineering, in particular to a high-performance water-lubricated mechanical transmission system based on novel engineering composite materials.

Background technique

For a long time, the key components such as bearings and sealing devices in the mechanical transmission system are generally composed of metal components and mineral oil is used as the lubricating medium. On the one hand, there are inevitably relatively large friction, wear, vibration, noise, and non-functional Consumption, seal leakage, environmental pollution, etc., waste a lot of strategic resources such as mineral oil and precious metal materials, especially the shafting structure of the ship stern shaft propulsion system is complicated, the shaft alignment is difficult to debug, and the leakage of lubricating oil pollutes water resources and the environment The increasingly serious status quo and the major problems of vibration and noise reduction in weapons and equipment; on the other hand, it has also caused problems such as poor overall performance and reliability of mechanical transmission systems, and shortened service life of equipment.

Contents of the invention

The purpose of the present invention is to design a high-efficiency, energy-saving and environment-friendly high-performance water-lubricated mechanical transmission system based on new engineering composite materials, which uses natural water as the lubricating medium and replaces metal friction pairs with new engineering composite materials.

A high-performance water-lubricated mechanical transmission system based on new engineering composite materials involved in the present invention includes a highly elastic coupling, a sealing device, a front water-lubricated bearing, a front bearing seat 1, a rear water-lubricated bearing, a rear Set the bearing housing 2 and the water supply system. The high elastic coupling connects the driving shaft 3 and the driven shaft 12 respectively, and the sealing device, the front water lubricated bearing and the front bearing seat 1, the rear water lubricated bearing and the rear bearing seat are installed in sequence on the driven shaft 12 2. The highly elastic coupling includes an active coupling flange 5 , a hub 7 , a high elastic rubber elastic ring 8 and a driven coupling flange 10 . The sealing device includes an end cover 13, a sealing seat 16, a dynamic seal 18 and an airbag seal 20. The dynamic seal 18 adopts a composite body composed of a polychloroprene rubber sealing body with a spring. The dynamic seal 18 passes through the end face of the end cover 13 in the axial direction Pressing and positioning, a water inlet hole 17 and an air inlet hole 19 are provided on the sealing seat 16 , and the air bag seal 20 is built in the inner cavity of the sealing seat 16 and communicates with the air inlet hole 19 . Both the front water-lubricated bearing and the rear-mounted water-lubricated bearing include a brass shell 23 and an engineering composite material lining 24. On the engineering composite material lining 24, there are circular rings distributed uniformly along the circumference and linearly distributed along the axial direction. The linear arc groove 25 formed by the arc curved surface 26, the working surface of the adjacent linear arc groove 25 is composed of the arc curved surface 27, the arc curved surface 28 and the arc curved surface 29 which are tangent to each other. The water supply system includes a pump 49 and a flow meter 51 .

When the high-performance water-lubricated mechanical transmission system uses a closed water cycle for lubrication to realize its closed-type water-lubricated transmission device, the rear-mounted water-lubricated bearing adopts a water-lubricated dynamic that is composed of a dynamic seal body and a water-lubricated bearing. Sealed bearing, wherein the dynamic seal body includes an internal dynamic seal 35, an external dynamic seal 36 and a seal seat 33, the left end of the external dynamic seal 36 is limited by a stopper 37 in the dynamic seal body, and the right end of the external dynamic seal 36 is pressed against the stopper 38 and On the inner seal 35, the dynamic seal body is connected to the shell 23 of the water-lubricated bearing through eight screws 39 evenly distributed on the circumference. Water outlet 41 is arranged, and this water outlet 41 communicates with the outlet 43 that offers on the rear bearing seat 2, and the water lubricated dynamic seal bearing end face is connected with the rear bearing seat 2 by eight screws 42 that are evenly divided in the circumference. The active connecting flange 5 in the high elastic coupling is connected with the driving shaft 3 through the key 4, the hub 7 and the driven connecting flange 10 are connected through eight screws 9 evenly distributed on the circumference, and the driven connecting flange 10 is connected through the key 11 and driven shaft 12 are connected. The end cover 13 and the sealing seat 16 in the sealing device are connected by eight screws 14 evenly distributed on the circumference, and the sealing seat 16 is connected with the front bearing seat 1 by eight screws 21 evenly distributed on the circumference, and the sealing seat 16 and the front A seal 22 is pressed between the bearing seats 1 . The right end of the front water lubricated bearing is compressed by the end face of the sealing seat 16, and the left end is pressed against the block 30. The water supply system includes an outlet screw head 44 , a water tank 45 , a switch 46 , a water supply channel 47 , a low water level switch 48 , a switch 50 , a water flow switch 52 , a pressure gauge 31 and an inlet screw head 32 .

When the high-performance water-lubricated mechanical transmission system is lubricated with natural water in the working environment to realize its open water-lubricated transmission, the rear-mounted water-lubricated bearing adopts a flange-type water-lubricated bearing, and through the flange-type Eight screws 46 evenly respectively on the end face circumference are connected with the rear bearing seat 2 . The water supply system includes a filtering device 53 , a switch 50 , a water flow switch 52 , a pressure gauge 31 and a water inlet coil head 32 .

The high-performance water-lubricated mechanical transmission system based on new engineering composite materials involved in the present invention uses new engineering composite materials as the lining and its lining lubrication structure adopts water-lubricating bearings that combine linear arc grooves and multi-curved surfaces, The water-lubricated dynamic-sealed bearing combined with the dynamic seal and the water-lubricated bearing, the elastic element adopts the high-elastic coupling made of new engineering composite materials, and the sealing device that can adapt to the axial movement and circumferential runout of the shaft. Natural water is used as the lubricating medium, which greatly solves the problems of friction, wear, vibration, noise, reactive power consumption, and poor reliability caused by traditional mechanical power transmission devices. At the same time, it can fundamentally solve the problem of lubricating oil pollution and save A large amount of mineral oil and about 70% of precious metal materials and other strategic resources can increase the service life of the traditional metal friction pair and its transmission system by more than 5 times in high-speed, heavy-load and extreme environments, and realize high-efficiency, energy-saving and environmental protection of the power transmission system. friendly.

Description of drawings

Figure 1 is a schematic diagram of the structure of a closed water lubricated transmission.

Fig. 2 is a structural schematic diagram of an open water lubrication transmission device.

Fig. 3 is a structural schematic diagram of a highly elastic coupling.

Fig. 4 is a structural schematic diagram of the sealing device.

Fig. 5 is a structural schematic diagram of the front water lubricated bearing.

Fig. 6 is a B-B sectional view of the front water lubricated bearing.

Fig. 7 is a schematic structural diagram of a flanged water-lubricated bearing.

Fig. 8 is a schematic structural diagram of a water-lubricated dynamic seal bearing.

Fig. 9 is an A-A sectional view of the closed water lubrication transmission device.

In the figure 1. Front bearing housing, 2. Rear bearing housing, 3. Driving shaft, 4. Key, 5. Flange, 6. Screw, 7. Hub, 8. High elastic rubber elastic ring, 9. Screw, 10. Driven connection flange, 11. Key, 12. Driven shaft, 13. End cover, 14. Screw, 15. Seal ring, 16. Seal seat, 17. Water inlet, 18. Dynamic seal, 19. Air intake hole, 20. Air bag seal, 21. Screw, 22. Seal, 23. Brass shell, 24. Engineering composite lining, 25. Linear arc groove, 26. Arc surface, 27. Arc Curved surface, 28. Arc curved surface, 29. Arc curved surface, 30. Block, 31. Pressure gauge, 32. Water inlet screw head, 33. Seal seat, 34. Static seal, 35. Internal dynamic seal, 36. External seal, 37. Block, 38. Block, 39. Screw, 40. Seal, 41. Water outlet, 42. Screw, 43. Water outlet, 44. Water outlet spiral pipe head, 45. Water tank, 46. Switch, 47. water supply channel, 48. low water level switch, 49. pump, 50. switch, 51. flow meter, 52. water flow switch. 53. Filtration device

Detailed ways

Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

The high-performance water-lubricated mechanical transmission system based on new engineering composite materials involved in the present invention includes a highly elastic coupling, a sealing device, a front-mounted water-lubricated bearing, a front-mounted bearing seat 1, a rear-mounted water-lubricated bearing, and a rear-mounted bearing Seat 2 and water supply system. The high elastic coupling connects the driving shaft 3 and the driven shaft 12 respectively, and the sealing device, the front water lubricated bearing and the front bearing seat 1, the rear water lubricated bearing and the rear bearing seat are installed in sequence on the driven shaft 12 2. As shown in Figure 1, when the rear water-lubricated bearing of the high-performance water-lubricated mechanical transmission system adopts the water-lubricated dynamic seal bearing shown in Figure 8, it can be lubricated with a closed water cycle to realize its closed water-lubricated transmission . As shown in Figure 2, the rear water-lubricated bearing of the high-performance water-lubricated mechanical transmission system adopts the flange-type water-lubricated bearing shown in Figure 7, which can directly use natural water in the working environment for lubrication work, realizing its open type Water lubricated transmission.

As shown in FIG. 3 , the highly elastic coupling includes an active coupling flange 5 , a hub 7 , a high elastic rubber elastic ring 8 and a driven coupling flange 10 . The driving coupling flange 5 is connected with the driving shaft 3 through the key 4 . The hub 7 and the driven coupling flange 10 are coupled by eight screws 9 that are evenly spaced around the circumference. The driven coupling flange 10 is coupled with the driven shaft 12 through a key 11 . The high elastic rubber elastic ring 8 can reduce the vibration of the shaft, reduce noise and transmit higher torque.

As shown in FIG. 4 , the sealing device includes an end cover 13 , a sealing seat 16 , a dynamic seal 18 and an airbag seal 20 . The end cover 13 and the sealing seat 16 are connected by eight screws 14 evenly distributed on the circumference. A water inlet hole 17 and an air inlet hole 19 are opened on the sealing seat 16 . When the dynamic seal 18 is damaged, inflate the airbag seal 20 from the air inlet 19, and the airbag seal 20 expands and tightens the shaft to prevent water from entering the hull, so that the dynamic seal 18 can be easily replaced without pulling the boat to the dock, which can greatly save maintenance cost. This sealing system is different from the traditional stuffing seal and radial lip seal. The dynamic seal 18 adopts a composite body composed of a polychloroprene rubber sealing body with a spring. The dynamic seal 18 is axially compressed and sealed and positioned through the end face of the end cover 13, which can better adapt to the axial movement of the propulsion shaft of the ship. The ring spring makes the sealing element tightly wound on the propulsion shaft and can follow the propulsion The circumferential runout of the shaft during rotation prevents water from entering the hull, provides a more reliable sealing system, and has all the major advantages of sealing. The sealing seat 16 is fixed on the front bearing seat 1 by eight screws 21 evenly distributed on the circumference, and a seal 22 is pressed between the sealing seat 16 and the front bearing seat 1 .

As shown in FIGS. 5 and 6 , the front water lubricated bearing includes a brass shell 23 and a lining 24 of engineering composite material. On the lining 24 made of engineering composite material, there are linear arc grooves 25 which are uniformly distributed along the circumferential direction and linearly distributed along the axial direction and are composed of arc curved surfaces 26 . The working surface of the adjacent linear arc groove 25 is composed of arc curved surface 27, arc curved surface 28 and arc curved surface 29. Such a working surface has the use of bearings to form elastohydrodynamic lubrication, and the linear arc groove 25 It can speed up the flow of liquid, reduce friction and heat, and make it easier to discharge sediment and impurities. The right end of the front water lubricated bearing is compressed by the end face of the sealing seat 16 , and the left end is pressed against the block 30 .

As shown in Figure 7, the flanged water-lubricated bearing includes a brass shell 23 and an engineering composite lining 24. The structure of the inner lining 24 is the same as that of the water-lubricated engineering composite lining 24. The end face of the flanged bearing can be easily passed through the Eight screws 42 evenly distributed around the circumference are fixed to the bearing housing 2 .

As shown in Figure 8, the water-lubricated dynamic seal bearing is composed of a dynamic seal body and a water-lubricated bearing. A static seal 34 is pressed between the sealing seat 33 and the housing 23 . A water outlet hole 41 is provided on the water-lubricated dynamic seal bearing. The water outlet hole 41 communicates with the water outlet hole 43 provided on the bearing housing 2 . The lubricating medium water in the bearing can circulate out through the water outlet hole 41 and the water outlet hole 43 . The dynamic sealing body includes an internal dynamic seal 35 , an external dynamic seal 36 and a sealing seat 33 . In the dynamic sealing body, the external dynamic seal 36 prevents external water from entering the bearing, and the internal dynamic seal 35 is used to prevent the lubricating medium in the bearing from leaking out.

The dynamic sealing body is connected to the shell 23 of the water-lubricated bearing through eight screws 39 evenly distributed on the circumference, so that the dynamic sealing and the bearing are combined together. Such water-lubricated dynamic and sealed bearings greatly optimize the shafting structure of the ship's stern shaft propulsion system, reducing the complex alignment and adjustment process of the shaft, thereby reducing the vibration generated by the shaft during work and operation, and greatly reducing the noise. . At the same time, the dynamic seal enhances the automatic centering ability and the ability to adapt to lateral and axial vibrations. On the one hand, the rotary dynamic seal itself has the followability of the corresponding transmission shaft; on the other hand, the engineering composite material bearing has the function of absorbing the vibration of the transmission shaft. , when the dynamic seal and the bearing are integrated, the transmission shaft can reduce the overall vibration of the dynamic seal, so that the dynamic seal body can automatically follow the mechanical surface of the transmission shaft to achieve sealing. The water-lubricated dynamic seal bearing has a multi-curved surface and a circular-arc groove internal surface lubrication structure, so that during the rotation of the output shaft, it is easy to form elastic hydrodynamic pressure lubrication, which greatly reduces its friction and wear. The end face of the water-lubricated dynamic seal bearing is fixed to the rear bearing seat 2 by eight screws 42 evenly distributed on the circumference. Therefore, the water-lubricated dynamic sealing bearing has the functions of high efficiency and energy saving, good dynamic sealing performance, optimized shafting structure, extended equipment life, and easy assembly, disassembly and maintenance.

When the high-performance water-lubricated mechanical transmission system adopts a closed-type water-lubricated transmission device as shown in Figure 1, the water supply system used includes a water outlet screw head 44, a water tank 45, a switch 46, a water supply channel 47, a low water level switch 48, a pump 49, Switch 50, flow meter 51, water flow switch 52, pressure gauge 31 and water inlet solenoid head 32.

As shown in Figure 2, when the high-performance water-lubricated mechanical transmission system adopts an open-type water-lubricated transmission device, the water supply system used includes a filter device 53, a pump 49, a switch 50, a flow meter 51, a water flow switch 52, a pressure gauge 31 and a water inlet Screw head 32.

Example 1

The high-performance water-lubricated mechanical transmission system uses a closed-type water-lubricated transmission device to apply to the working process of the ship's stern shaft propulsion system:

As shown in Figure 1, the high elastic coupling connects the driving shaft 3 and the driven shaft 12 respectively, and the sealing device, the front water lubricated bearing and the front bearing seat 1, and the water lubricated dynamic seal are installed in sequence on the driven shaft 12. Bearing and rear bearing housing 2. Water is first injected into the water tank 45 through the water supply channel, and the low water level switch 48 can control the height of the water level in the water tank. Turn on the water flow switch 52, the pump 49 enters the water in the water tank into the sealing device through the water inlet screw head 32, the airbag seal 20 is not inflated, and the water can enter the front water lubricated bearing and the water lubricated dynamic sealed bearing for lubrication , water is returned in the water tank by outlet screw pipe head 44 again.

When the propulsion shaft vibrates due to factors such as fluid dynamics, wave impact, and shafting imbalance, the water-lubricated dynamic seal bearing, the lining material of the front water-lubricated bearing and the high-elastic rubber elastic ring 8 of the high-elastic coupling are adopted The modified new engineering composite material, on the one hand, can elastically absorb shaft vibration through water-lubricated dynamic seal bearings and water-lubricated composite material bearings; on the other hand, it can absorb the axial and circumferential directions of the propulsion shaft through highly elastic coupling vibration, so as to jointly absorb the vibration generated by the propulsion shaft from these two aspects, which greatly reduces the working noise.

When the propulsion shaft rotates in the front water-lubricated bearing and the water-lubricated dynamic seal bearing, because the inner linings of the two bearings are provided with linear arcs that are uniformly distributed along the circumferential direction and linearly distributed along the axial direction, and are composed of arc curved surfaces 26 The lubricating structure of the groove 25, the working surface of the adjacent linear arc groove 25 is composed of the arc curved surface 27, the arc curved surface 28 and the arc curved surface 29, so such a working curved surface is easy to form elastohydrodynamic lubrication. The water film support is formed between the transmission shaft and the bearing, which greatly reduces the friction and wear of the bearing. At the same time, when the propulsion shaft is rotating, the water provided by the closed circulation water supply system can quickly take away the friction through the arc grooves of the two. The heat emitted.

When the dynamic seal 18 is damaged, air is filled with the air bag seal 20 through the air inlet hole on the seal seat 16, and the air bag seal 20 expands to hold the shaft and seal water to enter, so that the dynamic seal 18 can be easily replaced. When the propulsion shaft moves axially, because the dynamic seal 18 is axially pressed and positioned through the end cover 13, the deviation generated by the dynamic seal 18 is small and no seal leakage will occur, and the ring spring makes the sealing element tightly wound on the On the propulsion shaft, the sealing leakage caused by the circumferential runout deviation during the rotation of the propulsion shaft is reduced, preventing water from entering the hull. In the water-lubricated dynamic seal bearing, the external dynamic seal 36 and the internal dynamic seal 35 are integrated with the bearing. Such a water-lubricated dynamic seal bearing makes the dynamic seal more capable of self-centering and adapting to lateral and axial vibrations, improving Sealing ability. The internal dynamic seal 35 in the water-lubricated dynamic seal bearing can prevent water from flowing out, and the external dynamic seal 36 can prevent the water from entering the outside of the ship.

Thus, the propulsion shaft rotates in the front water-lubricated bearing and the water-lubricated dynamic seal bearing, and the water provided by the water supply system is used to lubricate and seal the device to prevent water leakage. It is connected with the motor equipment through a highly elastic coupling, realizing Closed water-lubricated transmission device for high-performance water-lubricated mechanical transmission system of ship stern shaft propulsion system.

Example 2

The high-performance water-lubricated mechanical transmission system adopts the open water-lubricated transmission device and is applied to the working process of the ship stern shaft propulsion system:

As shown in Figure 2, the high-elastic coupling connects the driving shaft 3 and the driven shaft 12 respectively, and the sealing device, the front water lubricated bearing and the front bearing seat 1, the flange type water lubricating Lubricate bearings and rear bearing housing 2. Turn on the water flow switch, the pump 49 will directly enter the seawater outside the hull into the sealing device through the filter device 53, the flow meter 51 and the water inlet coil head 32, the airbag seal 20 is not inflated, and the water can enter the front water lubricating bearing and the method. Lubricated in blue-type water-lubricated bearings.

When the propulsion shaft rotates in the front water-lubricated bearing and the flange-type water-lubricated bearing, on the one hand, it is also easy to form fluid elastic dynamic pressure lubrication in the closed water-lubricated transmission device of embodiment 1, which reduces friction and wear and absorbs the propulsion shaft vibration. On the other hand, when silt and impurities enter the arc surface 28 of the contact surface between the shaft and the bearing, because the curved surfaces connecting this section of the working surface and the groove are the arc curved surface 27 and the arc curved surface 29 respectively, Then silt and impurities are more likely to slide into the linear arc groove 25 li by such a curved surface, and the water provided by the open water supply system will remove the mud in the arc groove of the front water lubricated bearing and the flanged water lubricated bearing. The sand and impurities are washed out, and at the same time, the water takes away the heat generated between the propulsion shaft and the front water lubricated bearing and the flanged water lubricated bearing during operation through the arc groove, prolonging the service life of the bearing.

The propulsion shaft rotates in the front water-lubricated bearing and the flange-type water-lubricated bearing, and is connected with the motor through a highly elastic coupling. Such an open water-lubricated transmission has the function of reducing vibration and noise for the propulsion shaft as a whole It is the same as the closed-type water-lubricated transmission device in Embodiment 1. The function realized by the sealing device is the same as that of the sealing device of the closed-type water-lubricated transmission in Embodiment 1.

Thus, the propulsion shaft rotates in the front water-lubricated bearing and the flange-type water-lubricated bearing, and the water provided by the water supply system is used to lubricate and seal the device to prevent water leakage. It is connected with the motor equipment through a highly elastic coupling to realize An open water-lubricated transmission device for a high-performance water-lubricated mechanical transmission system of a ship stern shaft propulsion system.

Claims (3)

1, a kind of high performance water lubricating mechanical driving system comprises highly elastic shaft coupling, seal arrangement, preposition water lubriucated bearing, preposition bearing support (1), trailing water lubricating bearings, rearmounted bearing support (2) and water system; It is characterized by: highly elastic shaft coupling connects driving shaft (3) and driven shaft (12) respectively, and seal arrangement, preposition water lubriucated bearing and preposition bearing support (1), trailing water lubricating bearings and rearmounted bearing support (2) have been installed on driven shaft (12) successively; Highly elastic shaft coupling comprises initiatively connecting flange (5), wheel hub (7), high elastic rubber elastic ring (8) and driven connecting flange (10); Seal arrangement comprises end cap (13), sealing seat (16), motive sealing (18) and air sac sealing (20), the compound body that motive sealing (18) has adopted the band spring to be made up of a polychlorostyrene nitrile rubber sealed body, motive sealing (18) compresses the location by end cap (13) end face axial, offer water inlet (17) and inlet hole (19) on sealing seat (16), air sac sealing (20) is built in the inner chamber of sealing seat (16) and communicates with inlet hole (19); Preposition water lubriucated bearing and trailing water lubricating bearings all comprise brass shell (23) and engineered composite material liner (24), on engineered composite material liner (24), offer along circumferentially becoming evenly to distribute and the Straight Line and Arc groove of being made up of circular arc camber (26) (25) that is in line vertically and distributes, the working surface of adjacent straight line arc groove (25) is by circular arc camber (27), circular arc camber (28) and circular arc camber (29) tangent composition; Water system comprises pump (49), flowmeter (51).

2, high performance water lubricating mechanical driving system according to claim 1, it is characterized in that: the trailing water lubricating bearings is the water lubricating dynamic sealing bearing that is consisted of one by motive sealing body and water lubriucated bearing, wherein the motive sealing body comprises interior motive sealing (35), outer motive sealing (36) and sealing seat (33), limit by block (37) at motive sealing body China and foreign countries' motive sealing (36) left end, outer motive sealing (36) right-hand member is pressed in block (38) and the interior sealing (35), the motive sealing body is by on the shell (23) that evenly divides other eight screws (39) at circumference and be connected in water lubriucated bearing, be pressed with static seal (34) between sealing seat (33) and the shell (23), on the water lubricating dynamic sealing bearing, have osculum (41), the osculum of offering on this osculum (41) and the rearmounted bearing support (2) (43) communicates, and the water lubricating dynamic sealing bearing face links by evenly divide other eight screws (42) and rearmounted bearing support (2) at circumference; Active connecting flange (5) in the highly elastic shaft coupling connects by key (4) and driving shaft (3), wheel hub (7) and driven connecting flange (10) connect by evenly divide other eight screws (9) at circumference, and driven connecting flange (10) connects by key (11) and driven shaft (12); End cap in the seal arrangement (13) and sealing seat (16) are by connecting at even eight screws (14) respectively of circumference, sealing seat (16) links by evenly divide other eight screws (21) and preposition bearing support (1) at circumference, is pressed with Sealing (22) between sealing seat (16) and the preposition bearing support (1); The right-hand member of preposition water lubriucated bearing is compressed by sealing seat (16) end face, and left end is pressed on the block (30); Water system comprises water exit spiral-tube head (44), water tank (45), switch (46), water channel (47), low-water level switch (48), switch (50), water switch (52), pressure gauge (31) and water inlet screwed pipe head (32).

3, high performance water lubricating mechanical driving system according to claim 1, it is characterized in that: the trailing water lubricating bearings adopts the flange-type water lubriucated bearing, links by evenly divide other eight screws (46) and rearmounted bearing support (2) on the flange-type end face circumference of this bearing; Water system comprises filtrating equipment (53), switch (50), water switch (52), pressure gauge (31) and water inlet screwed pipe head (32).

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