A cooling water pump bearing for a hydroelectric power station and a method of using the same

Abstract

The application discloses a cooling water pump bearing for a hydropower station and a use method thereof, which comprises a mounting sleeve, a bearing outer ring, a bearing inner ring and a mounting groove, two groups of mounting grooves are formed in the outer wall of the mounting sleeve, a threaded rod is mounted at the end of the mounting sleeve, a fastening plate is mounted at one end of the telescopic rod, an inclined block is mounted at the bottom of the fastening plate, and a pressing block is mounted at the outer wall of the threaded rod. The fastening plate, the inclined block and the pressing block are mounted, the mounting sleeve is embedded into the motor output end of the cooling water pump during installation, the bearing inner ring is connected in close contact with the motor output end, the mounting groove of the mounting sleeve is matched with the protruding block of the mounting area of the water pump, the threaded rod is rotated at the moment, the inclined block is pressed and moved, the movement of the inclined block drives the movement of the fastening plate, the fastening plate is tightly pressed on the water pump, the mounting sleeve is locked in the water pump, the mounting sleeve can be quickly locked, the mounting sleeve is convenient to disassemble, maintain and assemble, and the time consumption during disassembly and assembly is small.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bearings, in particular to a cooling water pump bearing for a hydropower station and a use method thereof. BACKGROUND

[0002] The cooling water pump is suitable for conveying clean water or liquid with physical and chemical properties in a high-pressure operation system, such as high-rise building water supply, boiler water supply, heating and refrigeration circulation, bathroom cold and warm water circulation pressure boosting and equipment matching, fire fighting system and pipeline pressure boosting. In a hydropower station, the cooling water pump mainly ensures water circulation, and the bearing of the cooling water pump is connected with the motor output end of the water pump to ensure the normal rotation of the motor.

[0003] The existing bearing has the following defects:

[0004] 1. Patent document CN103195737A discloses a bearing for a main feed water pump, which comprises an oil baffle, a thrust baffle and an axial displacement baffle sleeved on the pump shaft, and a bearing seat sleeved on the radial outer side of the oil baffle, the thrust baffle and the axial displacement baffle. A front thrust block seat and a rear thrust block seat are fixed on the inner circumference of the bearing seat, and the front thrust block seat and the rear thrust block seat are symmetrically arranged on the front and rear sides of the thrust baffle. A plurality of front thrust blocks evenly distributed around the pump shaft are arranged between the front end surface of the thrust baffle and the front thrust block seat. A plurality of rear thrust blocks evenly distributed around the pump shaft are arranged between the rear end surface of the thrust baffle and the rear thrust block seat. The technical effect is that during the operation of the main feed water pump, the front thrust block, the thrust baffle and the rear thrust block cooperate to balance the axial force received by the pump shaft, prevent the pump shaft from being damaged during operation, and ensure the safe operation of the main feed water pump. However, the bearing is installed on the cooling water pump, which is troublesome to disassemble and assemble, and the disassembly and assembly of the bearing are time-consuming and laborious.

[0005] 2. Patent document CN103557174A discloses a water pump shaft bearing with a sealing structure, which comprises an outer ring, a shaft, a rolling body, a retainer, a double-lip sealing ring and a sealing structure. The rolling body is installed in the rolling groove between the outer ring and the shaft through the retainer. The outer diameter of the double-lip sealing ring is embedded in the dustproof sealing groove, and the double-lip on the inner diameter is in interference fit with the shaft. The sealing structure is installed at the impeller end of the water pump shaft bearing and is located outside the outer rolling groove. The sealing structure is a snap ring type sealing ring or a composite sealing structure with a water throwing ring. The sealing structure effectively prevents the direct contact between dirt in the working environment and the inner lip of the sealing ring, protects the sealing ring, and reduces the wear rate of the inner lip of the sealing ring. However, the bearing has poor heat dissipation, and the rotation of the bearing is prone to high temperature.

[0006] 3、Patent document CN211059209U discloses a new type of self-lubricating water pump sliding bearing, "a new type of self-lubricating water pump sliding bearing, comprising a bearing seat, a pair of bearing bushings are installed on the upper end of the bearing seat, a sliding shaft is slidably connected between the two bearing bushings, an arc-shaped groove is opened in the inner wall of the bearing bushing, an active cavity is opened in the inner part of the bearing bushing, a connecting hole is opened between the arc-shaped groove and the active cavity, the connecting hole is in communication with the arc-shaped groove and the active cavity, an external connecting hole is opened in the upper end of the bearing bushing and is in communication with the connecting hole, an active block is slidably connected in the active cavity, an insertion hole is opened in the upper end of the active block, an insertion rod is inserted in the insertion hole, a solid self-lubricating block is fixedly connected to the bottom end of the insertion rod, the solid self-lubricating block is located in the arc-shaped groove and is matched with the arc-shaped groove, the position of the solid self-lubricating block can be adjusted, the lubricating area of the solid self-lubricating block on the sliding shaft can be increased, and thus the self-lubricating efficiency of the sliding shaft can be improved", but there is a gap between the bearing inner ring and the motor output end, and foreign matter may enter;

[0007] 4、Patent document CN210135109U discloses a bearing fixing structure convenient to install for water pump, "including a pump cover, a shaft, a gland and a bearing, a through hole is horizontally and throughly formed in the middle of the side end face of the pump cover, and a limiting ring cover is vertically fixed in the interior of the pump cover, an inner ring sleeve is fixedly sleeved on the shaft, one end of the inner ring sleeve is provided with the gland, the bearing is installed between the inner ring sleeve and the gland on the shaft, and one end of the shaft extends to the outside of the pump cover through the limiting ring cover and the through hole, and the gland is installed in the interior of the limiting ring cover. The utility model can quickly disassemble and assemble the bearing according to the installation requirement, the installation mode is more simple, the installation precision is higher, and then the installation efficiency is improved and the installation time is shortened", but the bearing and the bearing mounting sleeve are directly without stable structure, so that the bearing as a whole is prone to vibration when the bearing inner ring rotates. SUMMARY

[0008] The present application aims to provide a cooling water pump bearing for hydropower stations and a use method thereof, so as to solve the problem of troublesome disassembly and assembly of the cooling water pump bearing in the prior art.

[0009] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a cooling water pump bearing for hydropower stations, comprising a mounting sleeve, a bearing outer ring, a bearing inner ring and a mounting groove, two groups of mounting grooves are formed in the outer wall of the mounting sleeve;

[0010] A threaded rod is installed at the end of the mounting sleeve, a recess is formed in the inner wall of the mounting groove, and one end of the threaded rod extends into the interior of the recess, a telescopic rod is installed on the inner wall of the recess, one end of the telescopic rod is installed with a fastening plate, the bottom of the fastening plate is installed with an inclined block, a pressing block is installed on the outer wall of the threaded rod, a sliding groove is formed in the inner wall of the recess, a sliding rod is installed on the inner wall of the sliding groove, a sliding block is installed on the outer wall of the sliding rod, and the outer wall of the sliding block is connected with the outer wall of the pressing block.

[0011] Preferably, the inner wall of the mounting sleeve is provided with a bearing outer ring, and the inner wall of the bearing outer ring is provided with a bearing inner ring.

[0012] Preferably, the end of the bearing inner ring is provided with an annular ring, the outer wall of each group of connecting blocks is movably connected with a rotating shaft, one end of the rotating shaft extends into the space between the bearing outer ring and the bearing inner ring, and the one end of the rotating shaft is provided with a fan blade.

[0013] Preferably, the end of the bearing outer ring is provided with an annular inner ring gear, and the outer wall of each group of rotating shafts is provided with a group of transmission teeth, and each group of transmission teeth is engaged with the inner ring gear.

[0014] Preferably, the inner wall of the bearing inner ring is provided with an air bag, the bearing inner ring is provided with a cavity in the inside, the inner wall of the cavity is provided with a large spring, the end of the bearing inner ring is provided with a rotating rod, one end of the rotating rod extends into the inside of the cavity, and the one end of the rotating rod is provided with a worm.

[0015] Preferably, the inner wall of the cavity is provided with a winding wheel, the end of the winding wheel is provided with a worm wheel, the worm wheel is engaged with the worm, the outer wall of the winding wheel is provided with a pull rope, the inner wall of the cavity is provided with a piston, one end of the pull rope is connected with the outer wall of the piston, and one end of the large spring is connected with the other outer wall of the piston.

[0016] Preferably, the inside of the mounting sleeve is provided with a groove, the inner wall of the groove is provided with a small spring, one end of the small spring is provided with a clamping block, and one end of the clamping block extends into the inside of the mounting sleeve.

[0017] Preferably, the inside of the mounting sleeve is provided with a transmission groove, the end of the mounting sleeve is provided with a receiving groove, the inner wall of the receiving groove is provided with a bolt, the threaded part of the bolt extends into the inside of the transmission groove, the outer wall of the bolt is provided with a moving block, the inner wall of the transmission groove is provided with a through groove, the outer wall of the moving block is provided with a connecting block, and the outer wall of the connecting block is provided with a fixing block.

[0018] Preferably, the working steps of the water pump bearing are as follows:

[0019] S1, during installation, the mounting sleeve is embedded into the motor output end of the cooling water pump, so that the bearing inner ring is connected with the motor output end, the mounting groove of the mounting sleeve is matched with the protrusion of the mounting area of the water pump, at this time, the threaded rod is rotated, the threaded rod drives the pressing block to move, the sliding block moves on the sliding groove along the sliding rod, the pressing block is guided, the pressing block moves gradually to press the inclined surface of the inclined block, the inclined block is pressed and moved, the inclined block drives the fastening plate to move, the fastening plate is tightly pressed on the water pump, so that the mounting sleeve is locked in the water pump, this structure enables the mounting sleeve to be quickly locked, facilitates the disassembly and maintenance of the mounting sleeve, and the time consumption during disassembly is small;

[0020] S2, when the bearing inner ring rotates, the annular ring follows the bearing inner ring to rotate and move, so that the transmission teeth movably connected by the connecting block rotate along the inner gear ring, so that the transmission teeth of the bearing inner ring are driven to rotate by the inner gear ring when the bearing inner ring rotates, the transmission teeth drive the rotating shaft to rotate, and the rotating shaft drives the fan blades to rotate, the fan blades rotate between the bearing outer ring and the bearing inner ring, thereby accelerating the airflow flow in the bearing, so that the heat generated by friction of the bearing can be quickly dissipated, and the situation that the temperature of the bearing is easily too high is greatly alleviated.

[0021] S3, when the bearing inner ring is connected with the motor output end, the rotating rod is rotated at this time, the rotating rod drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the winding wheel to rotate, the winding wheel rotates to wind the pull rope, the pull rope moves the piston, and the piston moves to fill the gas in the cavity into the air bag, so that the air bag is inflated and adheres to the motor output end, thereby ensuring that there is no gap between the bearing inner ring and the motor output end, avoiding that the water pump is flowed into through the gap between the motor output end and the bearing inner ring, and improving the sealing performance.

[0022] S4, when the bearing is connected with the mounting sleeve, the bearing is directly embedded in the inside of the mounting sleeve, the bearing extrudes the inclined surface of the clamping block, so that the clamping block is retracted into the groove, when the bearing is completely embedded, the small spring restores the clamping block, so that the bearing is limited in the mounting sleeve, then the bolt is rotated, the bolt drives the moving block to move, the moving block drives the connecting block to move, the connecting block drives the fixed block to move, the fixed block drives the bearing to move, so that the bearing is finally clamped and locked by the clamping block and the fixed block, and when disassembling, only the clamping block needs to be pressed, the structure makes the bearing easy to install, firm and convenient to disassemble and maintain.

[0023] Preferably, in the step S2, the following step is further included:

[0024] S21, the fan blades are small steel structure blades, thereby improving the service life of the fan blades;

[0025] In the step S3, the following step is further included:

[0026] S31, the worm gear and the worm transmission are one-way transmission, which ensures that the piston is pulled and stopped.

[0027] Compared with the prior art, the beneficial effects of the present application are:

[0028] 1. The present application is locked by installing the fastening plate, the inclined block and the pressing block. When installing, the installation sleeve is embedded into the motor output end of the cooling water pump, so that the bearing inner ring is connected with the motor output end. The installation groove of the installation sleeve is matched with the protrusion of the installation area of the water pump. At this time, the threaded rod is rotated, the threaded rod rotation drives the pressing block to move, the sliding block moves along the sliding rod on the sliding groove, which plays a guiding role for the pressing block. The movement of the pressing block gradually extrudes the inclined surface of the inclined block, so that the inclined block is extruded and moved. The movement of the inclined block drives the fastening plate to move, and the fastening plate is tightly pressed on the water pump, so that the installation sleeve is locked in the water pump. This structure can quickly complete the locking of the installation sleeve, and is convenient for disassembly and maintenance of the installation sleeve, so that the time consumption is small during disassembly;

[0029] 2. The present application is locked by installing the fastening plate, the inclined block and the pressing block. When installing, the installation sleeve is embedded into the motor output end of the cooling water pump, so that the bearing inner ring is connected with the motor output end. The installation groove of the installation sleeve is matched with the protrusion of the installation area of the water pump. At this time, the threaded rod is rotated, the threaded rod rotation drives the pressing block to move, the sliding block moves along the sliding rod on the sliding groove, which plays a guiding role for the pressing block. The movement of the pressing block gradually extrudes the inclined surface of the inclined block, so that the inclined block is extruded and moved. The movement of the inclined block drives the fastening plate to move, and the fastening plate is tightly pressed on the water pump, so that the installation sleeve is locked in the water pump. This structure can quickly complete the locking of the installation sleeve, and is convenient for disassembly and maintenance of the installation sleeve, so that the time consumption is small during disassembly;

[0030] 3. The present application is locked by installing the fastening plate, the inclined block and the pressing block. When installing, the installation sleeve is embedded into the motor output end of the cooling water pump, so that the bearing inner ring is connected with the motor output end. The installation groove of the installation sleeve is matched with the protrusion of the installation area of the water pump. At this time, the threaded rod is rotated, the threaded rod rotation drives the pressing block to move, the sliding block moves along the sliding rod on the sliding groove, which plays a guiding role for the pressing block. The movement of the pressing block gradually extrudes the inclined surface of the inclined block, so that the inclined block is extruded and moved. The movement of the inclined block drives the fastening plate to move, and the fastening plate is tightly pressed on the water pump, so that the installation sleeve is locked in the water pump. This structure can quickly complete the locking of the installation sleeve, and is convenient for disassembly and maintenance of the installation sleeve, so that the time consumption is small during disassembly;

[0031] 4. The present application is locked by installing the fastening plate, the inclined block and the pressing block. When installing, the installation sleeve is embedded into the motor output end of the cooling water pump, so that the bearing inner ring is connected with the motor output end. The installation groove of the installation sleeve is matched with the protrusion of the installation area of the water pump. At this time, the threaded rod is rotated, the threaded rod rotation drives the pressing block to move, the sliding block moves along the sliding rod on the sliding groove, which plays a guiding role for the pressing block. The movement of the pressing block gradually extrudes the inclined surface of the inclined block, so that the inclined block is extruded and moved. The movement of the inclined block drives the fastening plate to move, and the fastening plate is tightly pressed on the water pump, so that the installation sleeve is locked in the water pump. This structure can quickly complete the locking of the installation sleeve, and is convenient for disassembly and maintenance of the installation sleeve, so that the time consumption is small during disassembly. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 The overall structure of the present application is shown in the figure;

[0033] Figure 2 The side structure of the present application is shown in the figure;

[0034] Figure 3 Figure is the schematic diagram of the mounting groove structure of the present application;

[0035] Figure 4 Figure is the schematic diagram of the inner ring structure of the present application;

[0036] Figure 5 Figure is the schematic diagram of the transmission tooth structure of the present application;

[0037] Figure 6 Figure is the schematic diagram of the bearing inner ring structure of the present application;

[0038] Figure 7 Figure is the schematic diagram of the worm structure of the present application;

[0039] Figure 8 Figure is the schematic diagram of the fixed sleeve structure of the present application;

[0040] Figure 9 Figure is the schematic diagram of the clamping block structure of the present application.

[0041] Figure: 1, mounting sleeve; 2, bearing outer ring; 3, bearing inner ring; 4, mounting groove; 5, threaded rod; 6, groove; 7, telescopic rod; 8, fastening plate; 9, inclined block; 10, pressing block; 11, sliding groove; 12, sliding rod; 13, sliding block; 14, annular ring; 15, connecting block; 16, rotating shaft; 17, fan blade; 18, inner ring gear; 19, transmission tooth; 20, air bag; 21, cavity; 22, large spring; 23, rotating rod; 24, worm; 25, winding wheel; 26, worm gear; 27, piston; 28, pull rope; 30, groove; 31, small spring; 32, clamping block; 33, transmission groove; 34, containing groove; 35, bolt; 36, moving block; 37, through groove; 38, connecting block; 39, fixed block. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0043] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0044] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0045] Please refer to Figures 1-9 The present application provides an embodiment: a cooling water pump bearing for a hydropower station, comprising a mounting sleeve 1, a bearing outer ring 2, a bearing inner ring 3 and a mounting groove 4, the inner wall of the mounting sleeve 1 is provided with the bearing outer ring 2, the inner wall of the bearing outer ring 2 is provided with the bearing inner ring 3, the mounting sleeve 1 is used to connect the bearing in the water pump, and the bearing outer ring 2 and the bearing inner ring 3 form a sliding bearing.

[0046] The outer wall of the mounting sleeve 1 is provided with two groups of mounting grooves 4, the end of the mounting sleeve 1 is provided with a threaded rod 5, the inner wall of the mounting groove 4 is provided with a groove 6, and one end of the threaded rod 5 extends into the inside of the groove 6, the inner wall of the groove 6 is provided with an extension rod 7, one end of the extension rod 7 is provided with a fastening plate 8, the bottom of the fastening plate 8 is provided with an inclined block 9, the outer wall of the threaded rod 5 is provided with a pressing block 10, the inner wall of the groove 6 is provided with a sliding groove 11, the inner wall of the sliding groove 11 is provided with a sliding rod 12, the outer wall of the sliding rod 12 is provided with a sliding block 13, and the outer wall of the sliding block 13 is connected with the outer wall of the pressing block 10, when installing, the mounting sleeve 1 is embedded into the motor output end of the cooling water pump, so that the bearing inner ring 3 is connected with the motor output end, the mounting groove 4 of the mounting sleeve 1 is matched with the protrusion of the mounting area of the water pump, at this time, the threaded rod 5 is rotated, the threaded rod 5 is rotated to drive the pressing block 10 to move, the sliding block 13 of the pressing block 10 moves along the sliding rod 12 on the sliding groove 11, and the sliding block 13 plays a guiding role on the pressing block 10, the pressing block 10 moves to gradually press the inclined surface of the inclined block 9, so that the inclined block 9 is pressed and moved, the inclined block 9 moves to drive the fastening plate 8 to move, the fastening plate 8 is tightly pressed on the water pump, so that the mounting sleeve 1 is locked in the water pump, this structure can quickly lock the mounting sleeve 1, is convenient for disassembly and maintenance of the mounting sleeve 1, and the time consumption is small when disassembling, so that the water conservancy station is convenient for overhaul of water pump parts.

[0047] The end of the bearing inner ring 3 is provided with an annular ring 14, the outer wall of the annular ring 14 is provided with a plurality of connecting blocks 15, the outer wall of each connecting block 15 is movably connected with a rotating shaft 16, one end of the rotating shaft 16 extends between the bearing outer ring 2 and the bearing inner ring 3, one end of the rotating shaft 16 is provided with a fan blade 17, the end of the bearing outer ring 2 is provided with an annular inner ring 18, the outer wall of each rotating shaft 16 is provided with a group of transmission teeth 19, and each group of transmission teeth 19 is engaged with the inner ring 18, when the bearing inner ring 3 rotates, the annular ring 14 rotates and moves with the bearing inner ring 3, so that the transmission teeth 19 movably connected with the connecting block 15 rotates and moves along the inner ring 18, so that the transmission teeth 19 of the bearing inner ring 3 is driven to rotate by the inner ring 18 when the bearing inner ring 3 rotates, the transmission teeth 19 rotates to drive the rotating shaft 16 to rotate, the rotating shaft 16 rotates to drive the fan blade 17 to rotate, and the fan blade 17 rotates between the bearing outer ring 2 and the bearing inner ring 3, thereby accelerating the airflow in the bearing, so that the heat generated by friction of the bearing can be quickly dissipated, and the situation that the temperature of the bearing is easily too high is greatly alleviated.

[0048] The inner wall of the bearing inner ring 3 is provided with an air bag 20, the inside of the bearing inner ring 3 is provided with a cavity 21, the inner wall of the cavity 21 is provided with a large spring 22, the end of the bearing inner ring 3 is provided with a rotating rod 23, one end of the rotating rod 23 extends into the inside of the cavity 21, one end of the rotating rod 23 is provided with a worm 24, the inner wall of the cavity 21 is provided with a winding wheel 25, the end of the winding wheel 25 is provided with a worm wheel 26, the worm wheel 26 is engaged with the worm 24, the outer wall of the winding wheel 25 is provided with a pull rope 28, the inner wall of the cavity 21 is provided with a piston 27, one end of the pull rope 28 is connected with the outer wall of the piston 27, one end of the large spring 22 is connected with the other outer wall of the piston 27, when the bearing inner ring 3 is connected with the motor output end, at this time, the rotating rod 23 is rotated, the rotating rod 23 drives the worm 24 to rotate, the worm 24 drives the worm wheel 26 to rotate, the worm wheel 26 drives the winding wheel 25 to rotate, the winding wheel 25 rotates to wind the pull rope 28, the pull rope 28 drives the piston 27 to move, the piston 27 moves to fill the gas in the cavity 21 into the air bag 20, so that the air bag 20 is inflated and adheres to the motor output end, so as to ensure that there is no gap between the bearing inner ring 3 and the motor output end, and the water pump is prevented from being filled with water flow through the gap between the motor output end and the bearing inner ring 3, and the sealing performance is improved.

[0049] The inside of the mounting sleeve 1 is provided with a groove 30, the inner wall of the groove 30 is provided with a small spring 31, one end of the small spring 31 is provided with a clamping block 32, one end of the clamping block 32 extends into the inside of the mounting sleeve 1, the inside of the mounting sleeve 1 is provided with a transmission groove 33, the end of the mounting sleeve 1 is provided with a containing groove 34, the inner wall of the containing groove 34 is provided with a bolt 35, the threaded part of the bolt 35 extends into the inside of the transmission groove 33, the outer wall of the bolt 35 is provided with a moving block 36, the inner wall of the transmission groove 33 is provided with a through groove 37, the outer wall of the moving block 36 is provided with a connecting block 38, the outer wall of the connecting block 38 is provided with a fixing block 39, when the bearing is connected with the mounting sleeve 1, the bearing is directly embedded into the inside of the mounting sleeve 1, the bearing extrudes the inclined surface of the clamping block 32, so that the clamping block 32 is retracted into the groove 30, when the bearing is completely embedded, the small spring 31 restores the clamping block 32, so that the bearing is limited in the mounting sleeve 1, then the bolt 35 is rotated, the bolt 35 drives the moving block 36 to move, the moving block 36 drives the connecting block 38 to move, the connecting block 38 drives the fixing block 39 to move, the fixing block 39 drives the bearing to move, so that the bearing is finally clamped and locked by the clamping block 32 and the fixing block 39, and when it needs to be disassembled, it only needs to press the clamping block 32, this structure makes the bearing easy to install and firm, and is convenient to disassemble and maintain.

[0050] The working steps of the water pump bearing are as follows:

[0051] S1, in the installation, the installation sleeve 1 is embedded into the motor output end of the cooling water pump, so that the bearing inner ring 3 is connected with the motor output end, the installation groove 4 of the installation sleeve 1 is matched with the protrusion of the installation area of the water pump, at this time, the threaded rod 5 is rotated, the threaded rod 5 is rotated to drive the pressing block 10 to move, the sliding block 13 moves along the sliding rod 12 on the sliding groove 11, the pressing block 10 is guided, the pressing block 10 is gradually extruded to move the inclined surface of the inclined block 9, so that the inclined block 9 is extruded and moved, the inclined block 9 is moved to drive the fastening plate 8 to move, the fastening plate 8 is tightly pressed on the water pump, so that the installation sleeve 1 is locked in the water pump, the structure makes the installation sleeve 1 can be quickly locked, the installation sleeve 1 is convenient to disassemble and maintain, so that the time consumption is small when disassembling;

[0052] S2, when the bearing inner ring 3 rotates, the annular ring 14 follows the bearing inner ring 3 to rotate and move, so that the transmission teeth 19 movably connected with the connecting block 15 rotate and move along the inner tooth ring 18, so that when the bearing inner ring 3 rotates, the transmission teeth 19 are driven to rotate by the inner tooth ring 18, the transmission teeth 19 rotate to drive the rotating shaft 16 to rotate, the rotating shaft 16 rotates to drive the fan blade 17 to rotate, the fan blade 17 rotates between the bearing outer ring 2 and the bearing inner ring 3, thereby accelerating the airflow flow in the bearing, so that the heat generated by the bearing due to friction can be quickly dissipated, greatly relieving the situation that the bearing temperature is easy to be too high;

[0053] S3, when the bearing inner ring 3 is connected with the motor output end, at this time, the rotating rod 23 is rotated, the rotating rod 23 is rotated to drive the worm 24 to rotate, the worm 24 is rotated to drive the worm wheel 26 to rotate, the worm wheel 26 is rotated to drive the winding wheel 25 to rotate, the winding wheel 25 is rotated to wind the pull rope 28, the pull rope 28 pulls the piston 27 to move, the piston 27 moves to fill the gas in the cavity 21 into the air bag 20, so that the air bag 20 is inflated and adheres to the motor output end, thereby ensuring that there is no gap between the bearing inner ring 3 and the motor output end, avoiding the water pump being flowed into through the gap between the motor output end and the bearing inner ring 3, and improving the sealing performance;

[0054] S4, when the bearing is connected with the installation sleeve 1, the bearing is directly embedded into the inside of the installation sleeve 1, the bearing extrudes the inclined surface of the clamping block 32, so that the clamping block 32 is retracted into the groove body 30, when the bearing is completely embedded, the small spring 31 restores the clamping block 32, so that the bearing is limited in the installation sleeve 1, then the screw 35 is rotated, the screw 35 is rotated to drive the moving block 36 to move, the moving block 36 moves to drive the connecting block 38 to move, the connecting block 38 moves to drive the fixed block 39 to move, the fixed block 39 moves to push the bearing, so that the bearing is finally clamped and locked by the clamping block 32 and the fixed block 39, so that the bearing is clamped stably, and the vibration of the bearing during rotation is reduced.

[0055] In the step S2, the following steps are further included:

[0056] S21, the fan blade 17 adopts small steel structure blade, thereby improving the service life of the fan blade 17;

[0057] In the step S3, further comprising the following steps:

[0058] S31, the worm wheel 26 and the worm 24 are driven in one-way, which ensures the effect that the piston is pulled and stopped.

[0059] The working principle is that when installing, the installation sleeve 1 is embedded into the motor output end of the cooling water pump, so that the bearing inner ring 3 is connected with the motor output end, the installation groove 4 of the installation sleeve 1 is matched with the protrusion of the installation area of the water pump, at this time, the threaded rod 5 is rotated, the threaded rod 5 rotation drives the pressing block 10 to move, the sliding block 13 moves along the sliding rod 12 on the sliding groove 11, which guides the pressing block 10, the pressing block 10 moves gradually extrudes the inclined surface of the inclined block 9, so that the inclined block 9 is extruded and moved, the inclined block 9 moves to drive the fastening plate 8 to move, the fastening plate 8 is tightly pressed on the water pump, so that the installation sleeve 1 is locked in the water pump, this structure makes the installation sleeve 1 can be quickly locked, which is convenient for the disassembly and maintenance of the installation sleeve 1, so that the time consumption is small when disassembling, when the bearing inner ring 3 rotates, the annular ring 14 follows the bearing inner ring 3 to rotate and move, the transmission tooth 19 movably connected with the connecting block 15 rotates and moves along the inner tooth ring 18, so that when the bearing inner ring 3 rotates, the transmission tooth 19 is driven to rotate by the inner tooth ring 18, the transmission tooth 19 rotates to drive the rotating shaft 16 to rotate, the rotating shaft 16 rotates to drive the fan blade 17 to rotate, the fan blade 17 rotates between the bearing outer ring 2 and the bearing inner ring 3, thereby accelerating the airflow in the bearing, so that the heat generated by the friction of the bearing can be quickly dissipated, which greatly relieves the situation that the temperature of the bearing is easily too high, when the bearing inner ring 3 is connected with the motor output end, at this time, the rotating rod 23 is rotated, the rotating rod 23 rotates to drive the worm 24 to rotate, the worm 24 rotates to drive the worm wheel 26 to rotate, the worm wheel 26 rotates to drive the reel 25 to rotate, the reel 25 rotates to wind the pull rope 28, the pull rope 28 pulls the piston 27 to move, the piston 27 moves to fill the gas in the cavity 21 into the air bag 20, so that the air bag 20 is inflated and adheres to the motor output end, thereby ensuring that there is no gap between the bearing inner ring 3 and the motor output end, avoiding the water flowing into the water pump through the gap between the motor output end and the bearing inner ring 3, improving the sealing performance, when the bearing is connected with the installation sleeve 1, the bearing is directly embedded into the inside of the installation sleeve 1, the bearing extrudes the inclined surface of the clamping block 32, so that the clamping block 32 is retracted into the groove body 30, when the bearing is completely embedded, the small spring 31 restores the clamping block 32, so that the bearing is limited in the installation sleeve 1, then the screw 35 is rotated, the screw 35 rotates to drive the moving block 36 to move, the moving block 36 moves to drive the connecting block 38 to move, the connecting block 38 moves to drive the fixed block 39 to move, the fixed block 39 moves to push the bearing, so that the bearing is finally clamped and locked by the clamping block 32 and the fixed block 39, so that the bearing is clamped stably, reducing the vibration of the bearing when rotating.

[0060] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the present application can be implemented in other particular forms without departing from the spirit or essential characteristics of the present application. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims shall be construed as limiting the scope of the claims.

Claims

1. A cooling water pump bearing for a hydropower station, comprising a mounting sleeve (1), an outer bearing ring (2), an inner bearing ring (3), and a mounting groove (4), characterized in that: The outer wall of the mounting sleeve (1) is provided with two sets of mounting grooves (4); The end of the mounting sleeve (1) is fitted with a threaded rod (5), the inner wall of the mounting groove (4) is provided with a groove (6), and one end of the threaded rod (5) extends into the interior of the groove (6). The inner wall of the groove (6) is fitted with a telescopic rod (7), one end of the telescopic rod (7) is fitted with a fastening plate (8), the bottom of the fastening plate (8) is fitted with a wedge (9), the outer wall of the threaded rod (5) is fitted with a pressure block (10), the inner wall of the groove (6) is provided with a sliding groove (11), the inner wall of the sliding groove (11) is fitted with a sliding rod (12), the outer wall of the sliding rod (12) is fitted with a slider (13), and the outer wall of the slider (13) is connected to the outer wall of the pressure block (10). The inner ring (3) of the bearing is equipped with an annular ring (14) at its end. Multiple sets of connecting blocks (15) are installed on the outer wall of the annular ring (14). A rotating shaft (16) is movably connected to the outer wall of each set of connecting blocks (15). One end of the rotating shaft (16) extends into the space between the outer ring (2) and the inner ring (3) of the bearing. A fan blade (17) is installed on one end of the rotating shaft (16). The bearing outer ring (2) is equipped with an annular internal gear ring (18) at its end. Each set of rotating shafts (16) has a set of transmission teeth (19) installed on its outer wall, and each set of transmission teeth (19) meshes with the internal gear ring (18). An airbag (20) is installed on the inner wall of the bearing inner ring (3). A cavity (21) is opened inside the bearing inner ring (3). A large spring (22) is installed on the inner wall of the cavity (21). A rotating rod (23) is installed at the end of the bearing inner ring (3). One end of the rotating rod (23) extends into the cavity (21). A worm gear (24) is installed at one end of the rotating rod (23). The inner wall of the cavity (21) is equipped with a roller (25), and the end of the roller (25) is equipped with a worm gear (26), which meshes with the worm (24). The outer wall of the roller (25) is equipped with a pull rope (28), and the inner wall of the cavity (21) is equipped with a piston (27). One end of the pull rope (28) is connected to the outer wall of the piston (27), and one end of the large spring (22) is connected to the other side of the outer wall of the piston (27). The working steps of this water pump bearing are as follows: S1. During installation, the mounting sleeve (1) is embedded into the motor output end of the cooling water pump, so that the inner ring (3) of the bearing is in close contact with the motor output end. The mounting groove (4) of the mounting sleeve (1) is engaged with the protrusion of the installation area of ​​the water pump. At this time, the threaded rod (5) is rotated. The rotation of the threaded rod (5) drives the pressure block (10) to move. Its slider (13) moves along the slide rod (12) on the slide groove (11) and guides the pressure block (10). The pressure block (10) moves and gradually squeezes the inclined surface of the inclined block (9), so that the inclined block (9) is squeezed and moved. The movement of the inclined block (9) drives the fastening plate (8) to move. The fastening plate (8) moves and presses tightly on the water pump, so that the mounting sleeve (1) is locked in the water pump. This structure allows the mounting sleeve (1) to be locked quickly, which facilitates the disassembly and maintenance of the mounting sleeve (1) and makes the disassembly and assembly time less. S2. When the inner ring (3) of the bearing rotates, its annular ring (14) moves along with the inner ring (3) of the bearing, so that the transmission teeth (19) connected to the connecting block (15) rotate along the inner gear ring (18). When the inner ring (3) of the bearing rotates, its transmission teeth (19) are driven to rotate by the inner gear ring (18). The rotation of the transmission teeth (19) drives the rotating shaft (16) to rotate. The rotation of the rotating shaft (16) drives the fan blade (17) to rotate. The fan blade (17) rotates between the outer ring (2) of the bearing and the inner ring (3) of the bearing, thereby accelerating the airflow in the bearing and allowing the heat generated by friction in the bearing to dissipate quickly, greatly alleviating the situation where the bearing temperature is easily too high. S3. When the inner ring (3) of the bearing is connected to the output end of the motor, rotate the rotating rod (23). The rotation of the rotating rod (23) drives the worm (24) to rotate. The rotation of the worm (24) drives the worm wheel (26) to rotate. The rotation of the worm wheel (26) drives the winding wheel (25) to rotate. The rotation of the winding wheel (25) winds the pull rope (28). The pull rope (28) pulls the piston (27) to move. The movement of the piston (27) fills the air bladder (20) with the gas in the cavity (21), so that the air bladder (20) bulges and fits against the output end of the motor, thereby ensuring that there is no gap between the inner ring (3) of the bearing and the output end of the motor, preventing water from flowing into the pump through the gap between the output end of the motor and the inner ring (3) of the bearing, and improving the sealing performance. S4. When the bearing is connected to the mounting sleeve (1), the bearing is directly embedded inside the mounting sleeve (1). The bearing presses the inclined surface of the clamping block (32), causing the clamping block (32) to retract into the groove (30). When the bearing is fully embedded, the small spring (31) restores the clamping block (32), so that the bearing is restricted in the mounting sleeve (1). Then the bolt (35) is rotated. The rotation of the bolt (35) drives the moving block (36) to move. The movement of the moving block (36) drives the connecting block (38) to move. The movement of the connecting block (38) drives the fixed block (39) to move. The movement of the fixed block (39) pushes the bearing, so that the bearing is finally clamped and locked by the clamping block (32) and the fixed block (39), so that the bearing is clamped firmly and the vibration generated during the rotation of the bearing is reduced. Step S2 further includes the following steps: S21, Its fan blades (17) adopt small steel structure blades, thereby improving the service life of the fan blades (17); Step S3 further includes the following steps: S31, its worm wheel (26) and worm (24) transmission is unidirectional, which ensures the effect of the piston being pulled and stopped immediately.

2. The cooling water pump bearing for a hydropower station according to claim 1, characterized in that: The inner wall of the mounting sleeve (1) is fitted with a bearing outer ring (2), and the inner wall of the bearing outer ring (2) is fitted with a bearing inner ring (3). The mounting sleeve (1) is used to connect the bearing to the water pump. The bearing outer ring (2) and the bearing inner ring (3) form a sliding bearing.

3. The cooling water pump bearing for a hydropower station according to claim 1, characterized in that: The mounting sleeve (1) has a groove (30) inside, and a small spring (31) is installed on the inner wall of the groove (30). A locking block (32) is installed at one end of the small spring (31), and one end of the locking block (32) extends into the interior of the mounting sleeve (1).

4. A cooling water pump bearing for a hydropower station according to claim 1, characterized in that: The mounting sleeve (1) has a transmission groove (33) inside and a receiving groove (34) at the end of the mounting sleeve (1). A bolt (35) is installed on the inner wall of the receiving groove (34), and the threaded part of the bolt (35) extends into the interior of the transmission groove (33). A moving block (36) is installed on the outer wall of the bolt (35). A through groove (37) is opened on the inner wall of the transmission groove (33). A connecting block (38) is installed on the outer wall of the moving block (36), and a fixing block (39) is installed on the outer wall of the connecting block (38).

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