Turning machine for fan main shaft maintenance

Abstract

The utility model discloses a turning machine for maintaining a main shaft of a fan. The turning machine comprises a lathe bed, main shaft boxes are connected to the left end and the right end of the lathe bed in a sliding mode, large supporting plates which are symmetrically distributed are connected to the middle of the lathe bed in a sliding mode, small supporting plates are connected to the upper ends of the large supporting plates in a sliding mode, third lead screws are rotationally connected to the front ends of the large supporting plates through bearings, and the third lead screws are in threaded connection with the longitudinally-corresponding small supporting plates. The upper portion of the front end of the lathe bed is rotationally connected with symmetrically-distributed first lead screws through bearings, and the lower ends of the spindle boxes are in threaded connection with the vertically-corresponding first lead screws. According to the turning machine for fan spindle maintenance, the center frame can be used for supporting and fixing the middle of the fan spindle, meanwhile, two sets of slidable headstocks and large supporting plates are arranged, and the turning machine is convenient to use. And under the condition that the fan main shaft is not repeatedly hoisted and disassembled, the two ends of the fan main shaft can be machined in turn, and the convenience of maintaining and turning the fan main shaft is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fan maintenance, in particular to a turning machine for repairing a fan main shaft. Background Art

[0002] Large wind turbines are important equipment in the field of power generation. They can capture wind energy and convert it into electrical energy. Wind power generation has become one of the important ways of renewable energy generation, and has the advantages of environmental protection, economy, and sustainability. As a result, large wind turbines have been widely used. During the use of the wind turbine, the wind turbine main shaft will wear out, and then a turning machine will be used for turning maintenance. The existing turning machine is generally composed of a bed, a headstock box and a large slide. When in use, the headstock box drives the wind turbine main shaft to rotate, and the large slide drives the turning tool to move for turning. The structure is simple and the cost of use is low. During use, it is often necessary to turn both ends of the wind turbine main shaft, and then the wind turbine main shaft needs to be turned around during maintenance. Due to the large size and weight of the wind turbine main shaft, it is difficult to lift and turn it, which affects the convenience of maintenance. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a turning machine for repairing the fan main shaft. A center frame can be used to support and fix the middle of the fan main shaft. At the same time, two sets of sliding headstocks and large support plates are provided. Without repeated lifting and disassembly of the fan main shaft, the two ends of the fan main shaft can be processed alternately, which greatly improves the convenience of turning the fan main shaft for repair and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a turning machine for repairing a fan spindle, comprising a bed;

[0005] Bed: The left and right ends are slidably connected with spindle boxes, the middle part of the bed is slidably connected with symmetrically distributed large pallets, the upper ends of the large pallets are slidably connected with small pallets, the front end of the large pallet is rotatably connected with screw rod three through a bearing, screw rod three is threadedly connected to the longitudinally corresponding small pallet, a center frame is provided in the middle of the bed, the upper part of the front end of the bed is rotatably connected with symmetrically distributed screw rod one through a bearing, the lower end of the spindle box is threadedly connected to the vertically corresponding screw rod one, during use, the center frame can be used to support and fix the middle of the fan main shaft, and two sets of sliding headstock boxes and large pallets are provided. Under the condition that the fan main shaft is not repeatedly hoisted and disassembled, the two ends of the fan main shaft can be processed in turn, which greatly improves the convenience of fan main shaft maintenance and turning.

[0006] Furthermore, a motor 1 is provided at both left and right ends of the bed, and the output shaft of the motor 1 is fixedly connected to a laterally adjacent screw rod 1. A control switch group is provided in the middle of the front end of the bed, and the input end of the motor 1 is electrically connected to the output end of the control switch group, and the input end of the control switch group is electrically connected to an external power supply, so as to facilitate the control of the rotation of the screw rod 1.

[0007] Furthermore, a support shaft is provided at the upper end of the center frame, the outer arc surface of the support shaft is rotatably connected to a cross bar, a positioning plate is provided at the upper end of the support shaft, and the front and rear ends of the center frame and the middle of the cross bar are slidably connected to fixing rods to facilitate the fixation of the fan main shaft.

[0008] Furthermore, the front and rear ends of the center frame and the front end of the cross bar are threadedly connected with small screws, and the small screws are rotatably connected to the fixed rods through bearings. A small handwheel is provided at the end of the small screw away from the longitudinal center of the center frame to facilitate the control of the movement of the fixed rod.

[0009] Furthermore, one end of the fixing rod close to the longitudinal center of the central frame is rotatably connected to a pressure wheel through a bearing, thereby reducing the friction between the fixing rod and the main shaft of the fan.

[0010] Furthermore, a pin is slidably connected to the front end of the upper surface of the positioning plate, and the lower end of the pin is movably plugged into the socket on the upper surface of the cross bar. A retaining ring is provided in the middle of the outer arc surface of the pin, and a spring is movably sleeved on the upper end of the outer arc surface of the pin. A positioning seat is provided on the upper surface of the positioning plate, and the front end of the positioning seat is slidably connected to the pin. The spring is located between the retaining ring and the upper end of the positioning seat to facilitate the positioning of the fixing rod.

[0011] Furthermore, the front end of the bed is rotatably connected to two symmetrically distributed screw rods through a bearing, and the front ends of the large pallets are threadedly connected to the vertically corresponding screw rods. Motor two is provided at both ends of the bed, and the output shaft of motor two is fixedly connected to the laterally adjacent screw rods. The input end of motor two is electrically connected to the output end of the control switch group, so as to facilitate the control of the movement of the large pallet.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the turning machine for repairing the fan main shaft has the following advantages:

[0013] 1. Place the fan main shaft above the two pressure wheels on the lower side, and rotate the two small hand wheels on the lower side at the same time. The small hand wheel drives the small screw to rotate. Under the action of the center frame, the small screw drives the fixed rod to move diagonally upward along the sliding hole of the center frame. The fixed rod drives the two pressure wheels below to move synchronously to support the fan main shaft to ensure that the fan main shaft coincides with the axis of the main shaft in the middle of the spindle box. Then fix the spindle box chuck to one end of the fan main shaft, and then the cross bar, which drives the upper fixed rod and the pressure wheel to move synchronously. The pressure wheel moves to the top of the fan main shaft. After the cross bar rotates into place, the pin shaft corresponds to the socket on the upper surface of the fixed rod. The spring pushes the pin shaft downward through the retaining ring under the support of the positioning seat. The pin shaft is movably connected with the socket on the upper surface of the fixed rod to realize the positioning of the fixed rod. Then the small handwheel above is rotated, and the pressure wheel above presses and fixes the middle part of the fan main shaft, and does not limit the rotation of the fan main shaft. During use, the center frame can be used to support and fix the middle of the fan main shaft. It is easy to fix and convenient to use.

[0014] 2. After one end of the fan main shaft is repaired, the original fixed chuck is loosened, and the motor drives the screw to rotate, and the screw drives the spindle box at the unprocessed end to move away from the fan main shaft. At the same time, the motor on the other side drives the spindle box at the processed end to move toward the fan main shaft. After moving into place, the chuck is connected to the fan main shaft, and then the spindle box drives the fan main shaft to rotate, and then the large pallet on the other side moves to process the unprocessed part. There are two sets of sliding headstock boxes and large pallets. Without repeated lifting and disassembly of the fan main shaft, the two ends of the fan main shaft can be processed in turn, which greatly improves the convenience of fan main shaft maintenance and turning. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is an enlarged structural diagram of the utility model at A;

[0017] Figure 3 It is a schematic diagram of the enlarged structure of point B of the utility model.

[0018] In the figure: 1 bed, 2 spindle box, 3 screw rod 1, 4 large pallet, 5 small pallet, 6 center frame, 7 fixed rod, 8 pressure wheel, 9 small screw rod, 10 small handwheel, 11 support shaft, 12 cross bar, 13 positioning plate, 14 pin shaft, 15 retaining ring, 16 spring, 17 positioning seat, 18 motor 1, 19 screw rod 2, 20 motor 2, 21 control switch group, 22 screw rod 3. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 ,This embodiment provides a technical solution: a turning machine for repairing a fan spindle, comprising a bed 1;

[0021] Bed 1: Both left and right ends thereof are slidably connected with spindle boxes 2, bed 1 provides support for the upper parts, the motor on the rear side of spindle box 2 runs, and the fan spindle is driven to rotate through the spindle and chuck inside the fan spindle, the middle part of bed 1 is slidably connected with symmetrically distributed large pallets 4, the upper ends of large pallets 4 are slidably connected with small pallets 5, the front end of large pallet 4 is rotatably connected with screw rod 3 22 through bearing, screw rod 3 22 is threadedly connected with the longitudinally corresponding small pallet 5, the large hand wheel at the front end of screw rod 3 22 can be rotated, screw rod 3 22 drives the small pallet 5 to slide longitudinally along the large pallet 4, the small pallet 5 drives the turning tool to move longitudinally, and cutting of different outer diameters can be realized, a center frame 6 is provided in the middle part of bed 1, the upper part of the front end of bed 1 is connected with a bearing A symmetrically distributed screw rod 3 is rotatably connected, the lower end of the spindle box 2 is threadedly connected to the vertically corresponding screw rod 3, a motor 18 is provided at both the left and right ends of the bed 1, and the output shaft of the motor 18 is fixedly connected to the laterally adjacent screw rod 3, a control switch group 21 is provided in the middle of the front end of the bed 1, the input end of the motor 18 is electrically connected to the output end of the control switch group 21, and the input end of the control switch group 21 is electrically connected to an external power supply, a support shaft 11 is provided at the upper end of the center frame 6, and a cross bar 12 is rotatably connected to the outer arc surface of the support shaft 11, and a positioning plate 13 is provided at the upper end of the support shaft 11, and the front and rear ends of the center frame 6 and the middle of the cross bar 12 are slidably connected with a fixed rod 7, and the front and rear ends of the center frame 6 and the front end of the cross bar 12 are threadedly connected with a small screw rod 9, The small screw rods 9 are rotatably connected to the fixed rods 7 through bearings, and a small handwheel 10 is provided at one end of the small screw rods 9 away from the longitudinal center of the center frame 6. The end of the fixed rod 7 close to the longitudinal center of the center frame 6 is rotatably connected to a pressure wheel 8 through a bearing. The fan main shaft is placed above the two pressure wheels 8 on the lower side, and the two small handwheels 10 on the lower side are rotated and distributed. The small handwheel 10 drives the small screw rod 9 to rotate. Under the action of the center frame 6, the small screw rod 9 drives the fixed rod 7 to move obliquely upward along the sliding hole of the center frame 6. The fixed rod 7 drives the two pressure wheels 8 below to move synchronously to prop up the fan main shaft, ensuring that the fan main shaft coincides with the axis of the main shaft in the middle of the spindle box 2. The upper small handwheel 10 is rotated, and the upper pressure wheel 8 presses and fixes the middle of the fan main shaft, without restricting The fan main shaft rotates, the front end of the upper surface of the positioning plate 13 is slidably connected with a pin shaft 14, the lower end of the pin shaft 14 is movably plugged with the socket on the upper surface of the cross bar 12, a retaining ring 15 is provided in the middle of the outer arc surface of the pin shaft 14, and a spring 16 is movably sleeved on the upper end of the outer arc surface of the pin shaft 14. A positioning seat 17 is provided on the upper surface of the positioning plate 13, and the front end of the positioning seat 17 is slidably connected with the pin shaft 14. The spring 16 is located between the retaining ring 15 and the upper end of the positioning seat 17. The cross bar 12 is rotated, and the cross bar 12 drives the upper fixed rod 7 and the pressure wheel 8 to move synchronously. The pressure wheel 8 moves to the top of the fan main shaft. After the cross bar 12 is rotated into place, the pin shaft 14 corresponds to the socket on the upper surface of the fixed rod 7. The spring 16 pushes the pin shaft 14 downward through the retaining ring 15 under the support of the positioning seat 17.The pin 14 is movably plugged with the socket on the upper surface of the fixed rod 7 to realize the positioning of the fixed rod 7. The front end of the bed 1 is rotatably connected with the symmetrically distributed screw rods 19 through the bearing. The front ends of the large pallet 4 are threadedly connected with the vertically corresponding screw rods 19. The left and right ends of the bed 1 are provided with motors 20. The output shafts of the motors 20 are fixedly connected with the horizontally adjacent screw rods 19. The input end of the motor 20 is electrically connected to the output end of the control switch group 21. The motor 20 drives the screw rods 19 to rotate, and the screw rods 19 drive the large pallet 4 to move horizontally. The large pallet 4 drives the small pallet 5 to move horizontally. The small pallet 5 drives the turning tool above itself to move, and the turning tool performs turning operations on the rotating fan spindle.

[0022] The working principle of a turning machine for repairing a fan main shaft provided by the utility model is as follows: the fan main shaft is placed above the two pressure wheels 8 on the lower side, and the two small hand wheels 10 on the lower side are rotated and distributed at the same time. The small hand wheels 10 drive the small screw rod 9 to rotate. The small screw rod 9 drives the fixing rod 7 to move obliquely upward along the sliding hole of the center frame 6 under the action of the center frame 6. The fixing rod 7 drives the two pressure wheels 8 below to move synchronously to support the fan main shaft, ensuring that the fan main shaft coincides with the axis of the main shaft in the middle of the main shaft box 2. The chuck of one of the main shaft boxes 2 is aligned with the fan main shaft. One end of the shaft is fixed, and then the cross bar 12 is rotated. The cross bar 12 drives the upper fixed rod 7 and the pressure wheel 8 to move synchronously. The pressure wheel 8 moves to the top of the fan main shaft. After the cross bar 12 is rotated into place, the pin shaft 14 corresponds to the socket on the upper surface of the fixed rod 7. The spring 16 pushes the pin shaft 14 downward through the retaining ring 15 under the support of the positioning seat 17. The pin shaft 14 is movably plugged with the socket on the upper surface of the fixed rod 7 to realize the positioning of the fixed rod 7. Then the small hand wheel 10 on the top is rotated, and the pressure wheel 8 on the top presses and fixes the middle part of the fan main shaft, and does not limit the rotation of the fan main shaft. The motor at the rear of the spindle box 2 rotates, and then the motor at the rear of the spindle box 2 runs, and drives the fan main shaft to rotate through the spindle and chuck inside the fan main shaft. At the same time, the motor 20 on the other side drives the screw rod 2 19 to rotate, and the screw rod 2 19 drives the large pallet 4 to move horizontally, and the large pallet 4 drives the small pallet 5 to move horizontally, and the small pallet 5 drives the turning tool above itself to move, and the turning tool performs turning operation on the rotating fan main shaft, and at the same time, the large handwheel at the front end of the screw rod 3 22 can be rotated, and the screw rod 3 22 drives the small pallet 5 to slide longitudinally along the large pallet 4, and the small pallet 5 drives the turning tool The cutter moves longitudinally to achieve cutting of different outer diameters. After one end of the fan spindle is machined and repaired, the originally fixed chuck is loosened, and the motor 18 drives the screw 3 to rotate, and the screw 3 drives the spindle box 2 at the unprocessed end to move away from the fan spindle. At the same time, the motor 18 on the other side drives the spindle box 2 at the processed end to move toward the fan spindle. After moving into place, the chuck is connected to the fan spindle, and then the spindle box 2 drives the fan spindle to rotate, and the large pallet 4 on the other side moves to process the unprocessed part.

[0023] It is worth noting that the motor 1 18 and the motor 2 20 disclosed in the above embodiments can be freely configured according to the actual application scenario. Both the motor 1 18 and the motor 2 20 can use servo motors with model ECMA-C20604RS. The control switch group 21 is provided with switch buttons corresponding to the motor 1 18 and the motor 2 20 for controlling their switching operation.

[0024] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A turning machine for fan main shaft maintenance, characterized in that: comprising a bed (1); The bed (1) has a main spindle box (2) slidably connected to its left and right ends, a symmetrically distributed large support plate (4) is slidably connected to the middle of the bed (1), and a small support plate (5) is slidably connected to the upper end of the large support plate (4), and the front end of the large support plate (4) is rotatably connected to a screw rod three (22) through a bearing, and the screw rod three (22) is threadedly connected to the small support plate (5) corresponding in the longitudinal direction. A center frame (6) is provided in the middle of the bed (1), and a symmetrically distributed screw rod one (3) is rotatably connected to the upper part of the front end of the bed (1) through a bearing, and the lower end of the main spindle box (2) is threadedly connected to the screw rod one (3) corresponding in the vertical direction.

2. A turning machine for fan main shaft maintenance according to claim 1, characterized in that: The left and right ends of the bed (1) are both provided with a motor (18), the output shaft of the motor (18) is fixedly connected to a laterally adjacent screw rod (3), a control switch group (21) is provided in the middle of the front end of the bed (1), the input end of the motor (18) is electrically connected to the output end of the control switch group (21), and the input end of the control switch group (21) is electrically connected to an external power supply.

3. The turning machine for fan main shaft maintenance according to claim 1, characterized in that: A support shaft (11) is provided at the upper end of the center frame (6); the outer arc surface of the support shaft (11) is rotatably connected to a cross bar (12); a positioning plate (13) is provided at the upper end of the support shaft (11); and the front and rear ends of the center frame (6) and the middle of the cross bar (12) are slidably connected to a fixing rod (7).

4. A turning machine for repairing a fan main shaft according to claim 3, characterized in that: The front and rear ends of the center frame (6) and the front end of the cross bar (12) are both threadedly connected with a small screw rod (9), and the small screw rod (9) is rotatably connected to the fixed rod (7) through a bearing. A small hand wheel (10) is provided at one end of the small screw rod (9) away from the longitudinal center of the center frame (6).

5. The turning machine for repairing the fan main shaft according to claim 3, characterized in that: One end of the fixing rod (7) close to the longitudinal center of the central frame (6) is rotatably connected to a pressing wheel (8) via a bearing.

6. The turning machine for repairing the fan main shaft according to claim 3, characterized in that: The front end of the upper surface of the positioning plate (13) is slidably connected with a pin shaft (14), the lower end of the pin shaft (14) is movably plugged into the jack on the upper surface of the cross bar (12), a retaining ring (15) is provided in the middle of the outer arc surface of the pin shaft (14), and a spring (16) is movably sleeved on the upper end of the outer arc surface of the pin shaft (14), a positioning seat (17) is provided on the upper surface of the positioning plate (13), the front end of the positioning seat (17) is slidably connected to the pin shaft (14), and the spring (16) is located between the retaining ring (15) and the upper end of the positioning seat (17).

7. The turning machine for repairing the fan main shaft according to claim 2, characterized in that: The front end of the bed (1) is rotatably connected to two symmetrically distributed screw rods (19) through a bearing, and the front ends of the large support plates (4) are threadedly connected to the two vertically corresponding screw rods (19). Two motors (20) are provided at both left and right ends of the bed (1), and the output shafts of the two motors (20) are fixedly connected to the two screw rods (19) adjacent to each other in the horizontal direction. The input end of the two motors (20) is electrically connected to the output end of the control switch group (21).

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