Fan main shaft bearing on-line processing structure

Abstract

The application discloses a fan main shaft bearing online processing structure, which comprises an L-shaped fixing plate, a liquid nitrogen tank is fixedly connected to one side of the L-shaped fixing plate, a bottom plate is fixedly connected to the right side of the liquid nitrogen tank close to the bottom, two side plates are fixedly connected to the top of the bottom plate, the two side plates are symmetrically arranged front-to-back, a transmission rod is arranged to penetrate the inner cavities of the two side plates, two hinged blocks are sleeved on the outer side of the transmission rod, and the bearing can be automatically placed into the liquid nitrogen tank for freezing through the cooperation of the component fixing piece, the liquid nitrogen tank, the protective cover, the hinged block, the side plate, the bottom plate, the turnover plate, the L-shaped connecting plate, the meshing plate, the screw rod, the lifting block, the worm gear, the motor, the worm, the vertical plate and the transmission rod, the bearing after freezing can be transmitted, the installation difficulty caused by the interference fit between the bearing and the main shaft hole is reduced, and the bearing can keep good fixing and sealing performance after installation.

Description

Technical Field

[0001] This invention relates to the field of metal processing technology, specifically to an online machining structure for fan main shaft bearings. Background Technology

[0002] Metalworking is a process technology that transforms metal materials into items, parts, and components. Wind turbine main shaft bearing processing is a type of metalworking. Bearings are an important component in modern mechanical equipment, often referred to as the "joints" of machinery. Their main function is to support rotating shafts or other moving bodies, guide rotational or kinetic motion, and bear the loads transmitted from the shaft or parts on the shaft. Wind turbine main shaft bearings specifically refer to bearings used to support the main shaft of a wind turbine. They are mainly used to connect the hub and gearbox, transferring the kinetic energy generated by the blades to the gearbox, and are a crucial component of the entire wind turbine.

[0003] Most existing bearings are installed on the main shaft of a wind turbine by placing the bearing on the bearing housing, ensuring that the bearing is fully aligned with the housing bore, and then gently tapping the outer ring of the bearing with a suitable tool to make it evenly enter the bearing housing bore. Although this installation method saves time and effort, it relies too much on the installation personnel's experience. If the installation personnel lack experience, they may use excessive tapping force, which may lead to damage to the bearing. Summary of the Invention

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] The online machining structure for the main shaft bearing of a blower includes an L-shaped fixing plate. A liquid nitrogen tank is fixedly connected to one side of the L-shaped fixing plate. A base plate is fixedly connected to the right side of the liquid nitrogen tank near the bottom. Two side plates are fixedly connected to the top of the base plate. The two side plates are symmetrically arranged front and back. A transmission rod is passed through the inner cavity of the two side plates. Two hinge blocks are sleeved on the outside of the transmission rod. The two hinge blocks are symmetrically arranged front and back. The bottom of the two hinge blocks are fixedly connected to the base plate. The two side plates are located between the two hinge blocks. A motor is located on the front side of the base plate. The power output shaft of the motor is fixedly connected to the front end of the transmission rod. Two worm gears are fixedly sleeved on the outside of the transmission rod. The two worm gears are symmetrically arranged front and back. Protective covers are fixedly connected to the opposite sides of the two side plates.

[0006] Preferably, each of the two protective covers has an annular opening on one corresponding side, and each of the two protective covers has a worm gear at its bottom. The worm gear meshes with a worm, and a lead screw is fixedly connected to the center of the top of the worm gear. The top of the lead screw passes through the bottom of the protective cover and extends into the inner cavity. A lifting block meshes with the outer side of the lead screw near the center. A crossbar is movably connected to one corresponding side of each of the two lifting blocks. One corresponding end of each of the two crossbars passes through the annular opening, and a flip plate is fixedly connected to one corresponding end of each of the two crossbars.

[0007] Preferably, a fixing member is fixedly connected to the right side of the protective cover near the top on the rear side, a meshing plate is fixedly sleeved on the outer side of the crossbar on the rear side, a vertical plate is fixedly connected to the front side of the fixing member, and a meshing groove is opened on the left side of the vertical plate near the top.

[0008] Preferably, an L-shaped connecting plate is fixedly connected to the top of the flip plate, and a round opening is provided near the left side of the top of the flip plate. An upper cylinder is fixedly sleeved in the inner cavity of the L-shaped connecting plate. Several swing plates are hinged to the bottom of the upper cylinder. The swing plates are arranged in a cross shape. A spring is fixedly connected to the top of each swing plate. The top of each spring is fixedly connected to the upper cylinder.

[0009] Preferably, an annular mounting plate is fixedly connected to the other side of the L-shaped fixing plate, a circular plate is fixedly connected to the right side of the annular mounting plate, a plurality of guide openings are provided on the right side of the circular plate, the plurality of guide openings are arranged in a cross shape, a support cylinder is installed on the right side of the annular mounting plate, and a moving plate is fixedly connected to the right end of the support cylinder.

[0010] Preferably, the right side of the movable plate is hinged with a plurality of cranks, the plurality of cranks are arranged in a cross shape, the right end of each plurality of cranks is hinged with a bonding plate, the right side of the bonding plate is fixedly connected with a movable plate, the plurality of movable plates pass through adjacent guide openings, the right side of the bonding plate is bonded to the circular plate, and the right side of each plurality of movable plates is fixedly connected with a semi-circular plate.

[0011] Preferably, a clamping plate is fixedly connected to the right side of each of the semicircular plates near the center of the circular plate, and a main shaft is attached to the corresponding side of each of the clamping plates. An arc-shaped guide plate is fixedly connected to the right side of each of the semicircular plates away from the center of the circular plate, and the main shaft is located between the arc-shaped guide plates.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. This invention, through the mutual cooperation between components such as component fixing parts, liquid nitrogen tank, protective cover, hinge block, side plate, bottom plate, flip plate, L-shaped connecting plate, meshing plate, lead screw, lifting block, worm gear, motor, worm, vertical plate, and transmission rod, can automatically place the bearing into the liquid nitrogen tank for freezing and then transfer the frozen bearing. This reduces the installation difficulties caused by the interference fit between the bearing and the spindle hole, while ensuring that the bearing can maintain good fixation and sealing performance after installation.

[0014] 2. This invention achieves fixed clamping of the fan main shaft through the mutual cooperation between components such as the annular mounting plate, circular plate, supporting cylinder, arc-shaped guide plate, moving plate, crank, semi-circular plate, bonding plate, movable plate, and clamping plate. Furthermore, when the bearing is frozen, it can be placed between several arc-shaped guide plates to prevent the bearing from shifting during installation and improve the bearing installation efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention;

[0016] Figure 2 This is a left view of the movable plate structure of the component of the present invention;

[0017] Figure 3 This is a schematic diagram of the L-shaped fixing plate structure of the component of the present invention;

[0018] Figure 4 This is a schematic diagram of the base plate structure of the component of the present invention;

[0019] Figure 5 This is a schematic diagram of the flip plate structure of the component of the present invention;

[0020] Figure 6 This is a schematic diagram of the upper cylinder structure of the component of the present invention.

[0021] The following are the labels in the diagram: 1. L-shaped fixing plate; 2. Annular mounting plate; 3. Support cylinder; 4. Circular plate; 5. Arc-shaped guide plate; 6. Upper cylinder; 7. L-shaped connecting plate; 8. Flipping plate; 9. Fixing component; 10. Vertical plate; 11. Protective cover; 12. Liquid nitrogen tank; 13. Motor; 14. Worm gear; 15. Side plate; 16. Base plate; 17. Moving plate; 18. Crank; 19. Semicircular plate; 20. Adhesive plate; 21. Movable plate; 22. Clamping plate; 23. Hinge block; 24. Worm gear; 25. Lead screw; 26. Meshing plate; 27. Lifting block; 28. Spring; 29. ​​Swing plate. Detailed Implementation

[0022] Please see Figure 1-6This invention provides a technical solution: an online machining structure for a fan main shaft bearing, including an L-shaped fixing plate 1. A liquid nitrogen tank 12 is fixedly connected to one side of the L-shaped fixing plate 1. A base plate 16 is fixedly connected to the right side of the liquid nitrogen tank 12 near the bottom. Two side plates 15 are fixedly connected to the top of the base plate 16. The two side plates 15 are symmetrically arranged front and back. A transmission rod is provided through the inner cavity of the two side plates 15. Two hinge blocks 23 are sleeved on the outer side of the transmission rod. The two hinge blocks 23 are symmetrically arranged front and back. The bottom of the two hinge blocks 23... All are fixedly connected to the base plate 16. The two side plates 15 are located between the two hinge blocks 23. A motor 13 is located on the front side of the base plate 16. The power output shaft of the motor 13 is fixedly connected to the front end of the transmission rod. Two worm gears 14 are fixedly sleeved on the outside of the transmission rod. The two worm gears 14 are arranged symmetrically front and back. Protective covers 11 are fixedly connected to the opposite sides of the two side plates 15. An annular opening is opened on the corresponding side of the two protective covers 11. The bottom of the two protective covers 11 has a worm wheel 24, which meshes with the worm gear 14. A lead screw 25 is fixedly connected to the center of the top of the worm gear 24. The top of the lead screw 25 passes through the bottom of the protective cover 11 and extends into the inner cavity. A lifting block 27 is engaged near the center of the outer side of the lead screw 25. A crossbar is movably connected to one side of each of the two lifting blocks 27. One end of each crossbar passes through an annular opening. A flip plate 8 is fixedly connected to one end of each crossbar. A fixing piece 9 is fixedly connected to the right side of the protective cover 11 near the top. A meshing device is fixedly sleeved on the outer side of the crossbar on the rear side. The front side of the composite plate 26 and the fastener 9 is fixedly connected to the vertical plate 10. The vertical plate 10 has an engagement groove on the left side near the top. The top of the flip plate 8 is fixedly connected to the L-shaped connecting plate 7. The top of the flip plate 8 has a round opening near the left side. The inner cavity of the L-shaped connecting plate 7 is fixedly sleeved with the upper cylinder 6. The bottom end of the upper cylinder 6 is hinged to several swing plates 29. The swing plates 29 are arranged in a cross shape. The top of each swing plate 29 is fixedly connected to a spring 28. The top of each spring 28 is fixedly connected to the upper cylinder 6.

[0023] An annular mounting plate 2 is fixedly connected to the other side of the L-shaped fixed plate 1. A circular plate 4 is fixedly connected to the right side of the annular mounting plate 2. Several guide holes are opened on the right side of the circular plate 4. The guide holes are arranged in a cross shape. A support cylinder 3 is installed on the right side of the annular mounting plate 2. A movable plate 17 is fixedly connected to the right end of the support cylinder 3. Several cranks 18 are hinged to the right side of the movable plate 17. The cranks 18 are arranged in a cross shape. A fitting plate 20 is hinged to the right end of each crank 18. A movable plate 21 is fixedly connected to the right side of the fitting plate 20. The movable plates 21 pass through the adjacent guide holes. The right side of the fitting plate 20 is in contact with the circular plate 4. Semicircular plates 19 are fixedly connected to the right side of each movable plate 21. Clamping plates 22 are fixedly connected to the right side of each semicircular plate 19 near the center of the circular plate 4. The main shaft is attached to the corresponding side of each clamping plate 22. Arc-shaped guide plates 5 are fixedly connected to the right side of each semicircular plate 19 away from the center of the circular plate 4. The main shaft is located between the arc-shaped guide plates 5.

[0024] Working principle: First, the fan main shaft is placed between several arc-shaped guide plates 5, and the support cylinder 3 is activated to move the moving plate 17 to the left. When the moving plate 17 moves to the left, several cranks 18 can drive the adjacent movable plates 21 to move in opposite directions along the guide opening. When the movable plates 21 move in opposite directions, they can drive the adjacent semi-circular plates 19 to move in opposite directions. The semi-circular plates 19 drive the adjacent clamping plates 22 to fix and clamp the fan main shaft. After the fan main shaft is fixed, the bearing to be installed can be attached to the bottom of several swing plates 29 and moved upward. At this time, several swing plates 29 flip in opposite directions, so that the bottom of the bearing is attached to several swing plates 29, thus completing the purpose of fixing the bearing. Then, the fan is started. The upper cylinder 6 drives the bearing downward and into the inner cavity of the liquid nitrogen tank 12 to freeze the bearing. When the bearing is frozen, the upper cylinder 6 drives the bearing upward and starts the motor 13. When the motor 13 starts, it drives the transmission rod to rotate through the power output shaft. The rotation of the transmission rod drives the two worm gears 14 to rotate. When the worm gears 14 rotate, they drive the worm wheel 24 to rotate. The rotation of the worm wheel 24 drives the lead screw 25 to rotate. The rotation of the lead screw 25 drives the lifting block 27 to move upward and make the meshing plate 26 mesh with the meshing groove, thereby causing the flipping plate 8 to flip 90 degrees. When the flipping plate 8 flips, the upper cylinder 6 starts again and sends the frozen bearing between several arc-shaped guide plates 5 to complete the positioning and facilitate installation.

Claims

1. An online machining structure for the main shaft bearing of a fan, comprising an L-shaped fixing plate (1), characterized in that: A liquid nitrogen tank (12) is fixedly connected to one side of the L-shaped fixed plate (1). A base plate (16) is fixedly connected to the right side of the liquid nitrogen tank (12) near the bottom. Two side plates (15) are fixedly connected to the top of the base plate (16). The two side plates (15) are symmetrically arranged front and back. A transmission rod is provided through the inner cavity of the two side plates (15). Two hinge blocks (23) are sleeved on the outside of the transmission rod. The two hinge blocks (23) are symmetrically arranged front and back. The bottom of the two hinge blocks (23) is fixedly connected to the base plate (16). The two side plates (15) are located between the two hinge blocks (23). A motor (13) is located on the front side of the base plate (16). The power output shaft is fixedly connected to the front end of the transmission rod. Two worm gears (14) are fixedly sleeved on the outside of the transmission rod. The two worm gears (14) are symmetrically arranged front and back. Protective covers (11) are fixedly connected to the opposite sides of the two side plates (15). Annular openings are opened on the corresponding sides of the two protective covers (11). There are worm wheels (24) at the bottom of the two protective covers (11). The worm wheels (24) mesh with the worm gears (14). A lead screw (25) is fixedly connected to the center of the top of the worm wheel (24). The top of the lead screw (25) penetrates the bottom of the protective cover (11) and extends into the inner cavity. A lifting block (27) meshes with the outside of the lead screw (25) near the center. Each of the lifting blocks (27) has a crossbar movably connected to one side. One end of each of the two crossbars passes through an annular opening. One end of each of the two crossbars is fixedly connected to a flip plate (8). A fixing member (9) is fixedly connected to the right side of the protective cover (11) near the top. A meshing plate (26) is fixedly sleeved on the outside of the crossbar on the rear side. A vertical plate (10) is fixedly connected to the front side of the fixing member (9). A meshing groove is opened on the left side of the vertical plate (10) near the top. An L-shaped connecting plate (7) is fixedly connected to the top of the flip plate (8). A round opening is opened on the top of the flip plate (8) near the left side. The inner cavity of the L-shaped connecting plate (7) is fixedly sleeved. There is an upper cylinder (6), and several swing plates (29) are hinged to the bottom end of the upper cylinder (6). The swing plates (29) are arranged in a cross shape. The top of each swing plate (29) is fixedly connected to a spring (28). The top of each spring (28) is fixedly connected to the upper cylinder (6). An annular mounting plate (2) is fixedly connected to the other side of the L-shaped fixing plate (1). A circular plate (4) is fixedly connected to the right side of the annular mounting plate (2). Several guide holes are opened on the right side of the circular plate (4). The guide holes are arranged in a cross shape. A support cylinder (3) is installed on the right side of the annular mounting plate (2). A moving plate (17) is fixedly connected to the right end of the support cylinder (3).

2. The online machining structure for the fan main shaft bearing according to claim 1, characterized in that: The movable plate (17) is hinged to a number of cranks (18) on the right side. The number of cranks (18) are arranged in a cross shape. The right end of each of the number of cranks (18) is hinged to a bonding plate (20). The right side of the bonding plate (20) is fixedly connected to a movable plate (21). The movable plates (21) all pass through adjacent guide openings. The right side of the bonding plate (20) is attached to the circular plate (4). The right side of each of the movable plates (21) is fixedly connected to a semi-circular plate (19).

3. The online machining structure for the fan main shaft bearing according to claim 2, characterized in that: A clamping plate (22) is fixedly connected to the right side of several semicircular plates (19) near the center of the circular plate (4). A main shaft is attached to the corresponding side of several clamping plates (22). An arc-shaped guide plate (5) is fixedly connected to the right side of several semicircular plates (19) away from the center of the circular plate (4). The main shaft is located between several arc-shaped guide plates (5).

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