Wind shielding equipment of hydraulic generator

Abstract

The utility model relates to the technical field of power generation equipment, in particular to a wind shield of a hydraulic generator, which comprises an upper frame and a plurality of wind shields, a keel is arranged between two adjacent wind shields, and the keel is connected with the upper frame through a support rod; locking devices are fixed to the keels, and the two ends of the wind shield are connected with the two adjacent keels through the locking devices respectively. Through the wind shielding equipment, the reliability of the wind shielding plate structure and the inspection efficiency of the hydro-generator unit can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power generation equipment, in particular to a wind shielding device for a hydrogenerator. Background Art

[0002] The wind shielding plate is a key component for forming the air path of the hydrogenerator, and the wind shielding plate is located above the unit rotor. Referring to the attached Figure 13 description, the traditional wind shielding plate 1 is arranged in a segmented manner in a full circle, and each wind shielding plate 1 is connected to the adjacent wind shielding plate 1 by a seam plate 18 and bolts. A support angle steel 19 is arranged at the position of the seam plate 18, and the support angle steel 19 is fixed on the upper frame by a screw rod 20. Since there are many bolts at the seam of the wind shielding plate 1 and the position of the seam of the wind shielding plate 1 needs to be adjusted on the construction site to form a complete circle, the disassembly and assembly on site are time-consuming and laborious.

[0003] When the rotor is regularly inspected, it is necessary to disassemble and assemble a large number of bolts and nuts on the wind shielding plate 1. The space inside the unit is narrow and it is not easy to operate, which affects the inspection efficiency and cycle. Especially for pumped storage hydro-generator motors, the rotor needs to be inspected every month, resulting in difficult disassembly and assembly of the wind shielding plate. On the other hand, the number of bolts, nuts and stop washers for fixing the wind shielding plate is large. When the unit is running, the wind shielding plate is in a complex environment of the wind field and the electromagnetic field, and there is a risk of bolt dropping during the operation of the unit, which greatly affects the safe operation of the unit. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model provides a wind shielding device for a hydrogenerator, which can improve the structural reliability of the wind shielding plate and the inspection efficiency of the hydrogenerator unit.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] A wind shielding device for a hydrogenerator includes an upper frame and a plurality of wind shielding plates. A keel is arranged between two adjacent wind shielding plates, and the keel is connected to the upper frame through a support rod; a locking device is fixed on the keel, and two ends of the wind shielding plate are respectively connected to two adjacent keels through the locking device.

[0007] The locking device includes a mounting seat, a pressing plate and an adjusting rod; the mounting seat is fixed on the keel, the pressing plate is hinged to the mounting seat, and the wind shielding plate is located between the pressing plate and the keel; the pressing plate is configured to press or loosen the wind shielding plate under the drive of the adjusting rod.

[0008] It further includes a base which is arranged on the keel; the adjusting rod sequentially passes through the pressing plate and the base, and a rotating handle is further arranged on the adjusting rod above the pressing plate, and a locking rod is further arranged on the adjusting rod below the pressing plate; a through groove for the locking rod to pass through is arranged in the base; a locking groove matching the locking rod is arranged at the lowest point of the lower surface of the base, and the lower surface of the base is in a conical shape inclined towards the locking groove direction.

[0009] It further includes an elastic component; a cavity is arranged in the pressing plate, an extrusion plate is arranged on the adjusting rod in the cavity, and the elastic component is arranged between the extrusion plate and the lower surface of the cavity.

[0010] A lifting component configured to drive the windshield to lift and lower is connected to the windshield.

[0011] The lifting component includes a servo motor, a coupling, a ball screw and a connecting rod; the servo motor is connected to the screw rod of the ball screw through the coupling; the connecting rod is respectively connected to the windshield and the nut of the ball screw.

[0012] It further includes a guiding device, and the guiding device includes a guiding key arranged along a straight line direction and matching the nut.

[0013] The guiding device further includes bearings respectively matching the screw rod and the connecting rod.

[0014] It further includes a locking member, and the locking member is connected to the fixed part of the lifting component and is configured to lock the moving part of the lifting component.

[0015] The locking member includes a connecting piece and two hoop fasteners connected through the connecting piece; when the two hoop fasteners are fixed, the moving part of the lifting component is clamped.

[0016] Compared with the prior art, the beneficial effects of the present utility model are shown in:

[0017] 1. In the present utility model, the joint plate structure of the windshield is cancelled, the windshield can be laid flat on the keel, the keel is fixed on the upper frame through the support rod, and the locking device can quickly lock the windshield on the keel, thus realizing the quick disassembly and assembly of the windshield. Since the locking device can always be firmly fixed on the keel, it can prevent the locking device from falling, thereby ensuring the reliability of the locking device.

[0018] 2. In the present utility model, the locking device includes a mounting seat, a pressing plate and an adjusting rod, with a simple structure and no falling.

[0019] 3. In the present utility model, the locking device further includes a base. Through the structural settings of the base and the adjusting rod, the loosening or locking of the locking device can be realized by rotating the adjusting rod, and the operation method is simple and convenient.

[0020] 4. The setting of the elastic component enables the locking device to generate a large locking force, and the locking force can be adjusted by adjusting the stiffness of the elastic component.

[0021] 5. The setting of the lifting component allows the windshield to move up and down, eliminating the need for maintenance personnel to disassemble and assemble the windshield and its fixing connectors, greatly improving the inspection efficiency of the unit.

[0022] 6. The setting of the guiding key can restrict the rotational movement of the nut of the ball screw, enabling it to move linearly only along the direction of the guiding key.

[0023] 7. The setting of the bearing can respectively support and limit the lead screw and the connecting rod.

[0024] 8. The setting of the locking part can lock the moving part of the lifting component, ensuring that the moving parts of the lifting component and the windshield remain fixed during the operation and maintenance of the unit, guaranteeing safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present utility model will be further described in detail below in conjunction with the accompanying drawings of the specification and specific embodiments, where:

[0026] Figure 1 is a schematic structural diagram of the present utility model;

[0027] Figure 2 is a schematic cross-sectional structural diagram of the locking device in the present utility model;

[0028] Figure 3 is a schematic three-dimensional structural diagram of the locking device in the present utility model Figure 1 ;

[0029] Figure 4 is a schematic three-dimensional structural diagram of the locking device in the present utility model Figure 2 ;

[0030] Figure 5 is a schematic structural diagram of the lifting component and the locking part in the present utility model;

[0031] Figure 6 is a schematic structural diagram of one type of the lifting component in the present utility model;

[0032] Figure 7 is a schematic structural diagram of another type of the lifting component in the present utility model;

[0033] Figure 8 is a schematic cross-sectional structural diagram of A-A in the present utility model;

[0034] Figure 9 is a schematic enlarged structural diagram of Region I in the present utility model;

[0035] Figure 10 It is a schematic structural diagram of the guiding device in the present utility model;

[0036] Figure 11 It is a schematic cross-sectional structural diagram of B-B in the present utility model;

[0037] Figure 12 It is a schematic structural diagram of the locking member in the present utility model;

[0038] Figure 13 It is a schematic structural diagram of the existing windshield equipment;

[0039] Markings in the figure:

[0040] 1. Windshield, 2. Keel, 3. Support rod, 4. Locking device, 5. Cavity, 6. Upper frame, 7. Mounting seat, 8. Pressing plate, 9. Adjusting rod, 10. Elastic component, 11. Base, 12. Locking rod, 13. Locking member, 14. Locking groove, 15. Lifting component, 16. Extrusion plate, 17. Rotating handle, 18. Seaming plate, 19. Support angle steel, 20. Screw, 131. Hoop, 132. Pin shaft, 133. Bolt, 151. Servo motor, 152. Coupling, 153. Lead screw, 154. Guiding device, 155. Connecting rod, 156. Nut, 157. Cylinder block, 158. Piston, 159. Sealing ring, 1541. Shell, 1542. Bearing, 1543. Guide key. Specific embodiments

[0041] Embodiment 1

[0042] As a basic embodiment of the present utility model, the present utility model includes a windshield device for a hydrogenerator, which includes an upper frame 6 and a plurality of windshields 1. A keel 2 is provided between adjacent two windshields 1, and the keel 2 is connected to the upper frame 6 through a support rod 3. A locking device 4 is fixed on the keel 2, and both ends of the windshield 1 are respectively connected to two adjacent keels 2 through the locking device 4. The locking device 4 can adopt conventional technical means in the art, and will not be elaborated in this embodiment.

[0043] Embodiment 2

[0044] As a preferred embodiment of the present utility model, the present utility model includes a windshield device for a hydrogenerator, which includes an upper frame 6 and a plurality of windshields 1. A keel 2 is provided between adjacent two windshields 1, and the keel 2 is connected to the upper frame 6 through a support rod 3. A locking device 4 is fixed on the keel 2, and both ends of the windshield 1 are respectively connected to two adjacent keels 2 through the locking device 4.

[0045] Specifically, the locking device 4 includes a mounting base 7, a pressing plate 8, and an adjusting rod 9. The mounting base 7 is fixed on the keel 2, and one end of the pressing plate 8 is hinged to the mounting base 7. The adjusting rod 9 is a screw rod, and a nut that cooperates with it is also provided on the adjusting rod 9. The adjusting rod 9 and the nut cooperate to form a ball screw structure. The adjusting rod 9 passes through the nut and the pressing plate 8 and is then arranged inside the keel 2. When the adjusting rod 9 rotates, it drives the nut to move downward, pressing the wind deflector 1 located between the pressing plate 8 and the keel 2. When it is necessary to loosen the wind deflector 1, rotate the adjusting rod 9 in the reverse direction to drive the nut to move upward. Through the structure of this locking device 4, although the disassembly and assembly are not fast enough, it is still faster than the method of bolt connection in the prior art. Moreover, there is no risk of components in the locking device 4 falling off.

[0046] Embodiment 3

[0047] As another preferred embodiment of the present utility model, the present utility model includes a water turbine generator wind deflector device, which includes an upper frame 6 and several wind deflectors 1. A keel 2 is provided between adjacent two wind deflectors 1, and the keel 2 is connected to the upper frame 6 through a support rod 3. A locking device 4 is fixed on the keel 2, and both ends of the wind deflector 1 are respectively connected to adjacent two keels 2 through the locking device 4.

[0048] The locking device 4 includes a mounting base 7, a pressing plate 8, an adjusting rod 9, and a base 11. Both the mounting base 7 and the base 11 are respectively fixed on the keel 2. One end of the pressing plate 8 is hinged to the mounting base 7. The adjusting rod 9 sequentially passes through the pressing plate 8 and the base 11. A rotating handle 17 is also provided on the adjusting rod 9 above the pressing plate 8, and a locking rod 12 is also provided on the adjusting rod 9 below the pressing plate 8. A through groove for the locking rod 12 to pass through is provided in the base 11. A locking groove 14 matching the locking rod 12 is provided at the lowest point of the lower surface of the base 11, and the lower surface of the base 11 is in a conical shape inclined towards the locking groove 14.

[0049] When it is necessary to lock the wind deflector 1, move the wind deflector 1 from the side to the space enclosed by the pressing plate 8, the adjusting rod 9, and the keel 2. Among them, the distance between the rotating handle 17 and the locking rod 12 matches the sum of the thickness of the pressing plate 8, the thickness of the wind deflector 1, and the distance between the upper surface of the base 11 and the locking groove 14. Press the rotating handle 17 downward, the rotating handle 17 contacts the pressing plate 8, the adjusting rod 9 moves downward to the farthest distance, rotate the rotating handle 17, the locking rod 12 on the adjusting rod 9 rotates and moves into the locking groove 14, locking the wind deflector 1 between the pressing plate 8 and the keel 2. When it is necessary to loosen the wind deflector 1, rotate the locking rod 12 to the through groove position and lift the adjusting rod 9. Through the structure of this locking device 4, rapid disassembly and assembly can be achieved.

[0050] Embodiment 4

[0051] As another preferred embodiment of the present utility model, the present utility model includes a wind shielding device for a water turbine generator, which includes an upper frame 6 and a plurality of wind shielding plates 1. A keel 2 is provided between two adjacent wind shielding plates 1. The keel 2 is connected to the upper frame 6 through a support rod 3. A locking device 4 is fixed on the keel 2, and both ends of the wind shielding plate 1 are respectively connected to two adjacent keels 2 through the locking device 4.

[0052] Furthermore, a lifting assembly 15 configured to drive the wind shielding plate 1 to lift is connected to the wind shielding plate 1. Refer to the attached drawings of the specification Figure 6 , the lifting assembly 15 can adopt a pneumatic or hydraulic structure. The pneumatic (or hydraulic) lifting assembly 15 is composed of a cylinder block 157, a piston 158, a sealing ring 159, and a connecting rod 155. By controlling the intake or oil intake sequence of the interfaces 1 and 2 of the cylinder block 157, the piston 158 can drive the connecting rod 155 to move upward or downward, thereby controlling the up and down movement of the wind shielding plate 1.

[0053] Even further, a locking member 13 is provided on the lifting assembly 15. The locking member 13 is connected to the fixed part of the lifting assembly 15 to lock the moving part of the lifting assembly 15, ensuring that when the unit is operating, the moving part of the lifting assembly 15 and the wind shielding plate 1 remain fixed, guaranteeing safety. More specifically, the locking member 13 can be fixedly connected to the cylinder block 157 to lock the connecting rod 155.

[0054] Embodiment 5

[0055] As the best embodiment of the present utility model, the present utility model includes a wind shielding device for a water turbine generator. Refer to the attached drawings of the specification Figure 1 , which includes an upper frame 6 and a plurality of wind shielding plates 1. A keel 2 is provided between two adjacent wind shielding plates 1. The keel 2 is connected to the upper frame 6 through a support rod 3. A locking device 4 is fixed on the keel 2, and both ends of the wind shielding plate 1 are respectively connected to two adjacent keels 2 through the locking device 4.

[0056] Specifically, refer to the attached drawings of the specification Figure 2 ~the attached drawings of the specification Figure 4 , the locking device 4 includes a mounting seat 7, a pressing plate 8, an adjusting rod 9, a base 11, and an elastic component 10. The mounting seat 7 can be welded to the keel 2, and the base 11 can be inlaid and welded to the keel 2, thereby ensuring the reliability of the locking device 4.

[0057] One end of the pressing plate 8 is hinged to the mounting seat 7, and a cavity 5 is provided inside the other end. The adjusting rod 9 sequentially passes through the cavity 5 and the base 11 from top to bottom. A rotating handle 17 is further provided on the adjusting rod 9 above the pressing plate 8, an extrusion plate 16 is provided on the adjusting rod 9 inside the cavity 5, and a locking rod 12 is further provided on the adjusting rod 9 below the pressing plate 8. A through groove for the locking rod 12 to pass through is provided inside the base 11. A locking groove 14 matching the locking rod 12 is provided at the lowest point of the lower surface of the base 11, and the locking groove 14 is a slightly recessed groove body. The lower surface of the base 11 is in a conical shape inclined towards the direction of the locking groove 14. The elastic component 10 is arranged between the extrusion plate 16 and the lower surface of the cavity 5. The elastic component 10 can be a spring or a disc spring, and the locking force can be adjusted by adjusting the stiffness of the elastic component 10.

[0058] When it is necessary to lock the windshield 1 between the pressing plate 8 and the keel 2, the windshield 1 is moved from the side to the space enclosed by the pressing plate 8, the adjusting rod 9 and the keel 2. The distance between the rotating handle 17 and the locking rod 12 matches the sum of the thickness of the pressing plate 8, the thickness of the windshield 1, and the distance between the upper surface of the base 11 and the locking groove 14. Further, in order to improve the quick positioning and pressing effect, an avoidance groove can be provided on the windshield 1, and the avoidance groove matches the adjusting rod 9, so that the side surface of the windshield 1 is closer to the position of the mounting seat 7, and the pressing surface of the pressing plate 8 on the windshield 1 is larger. Press down the rotating handle 17, the extrusion plate 16 squeezes the elastic component 10, and the elastic component 10 is in a compressed state until the rotating handle 17 contacts the pressing plate 8, the adjusting rod 9 moves down to the farthest distance, rotate the rotating handle 17, the locking rod 12 on the adjusting rod 9 rotates and moves into the locking groove 14, locking the windshield 1 between the pressing plate 8 and the keel 2. Since the elastic component 10 has a large stiffness, the locking device 4 generates a large locking force to lock the windshield 1 on the keel 2. When it is necessary to loosen the windshield 1, rotate the locking rod 12 to the through groove position, and the elastic component 10 drives the adjusting rod 9 to return to its original position. Through the structure of the locking device 4, not only can quick disassembly and assembly be realized, but also the adjustment of the locking force can be realized.

[0059] Further, referring to the attached drawings of the specification Figure 5 , a lifting component 15 is provided between the windshield 1 and the upper frame 6. By controlling the lifting component 15, the windshield 1 can be moved up and down, and maintenance personnel do not need to disassemble and assemble the windshield 1 and the fixing connectors, greatly improving the inspection efficiency of the unit.

[0060] Specifically, referring to the attached drawings of the specification Figure 7, the lifting component 15 can adopt an electric structure, including a servo motor 151, a coupling 152, a ball screw, a guiding device 154, and a connecting rod 155. The servo motor 151 is connected to the screw rod 153 of the ball screw through the coupling 152 to drive the screw rod 153 to rotate. The nut 156 of the ball screw is connected to the connecting rod 155 to drive the connecting rod 155 to perform a linear motion. The other end of the connecting rod 155 is connected to the windshield 1. By controlling the rotation speed and direction of the servo motor 151, the moving speed and direction of the connecting rod 155 can be controlled. The control strategy of the servo motor 151 can adopt local control or remote wireless control.

[0061] Refer to the attached Figure 8 ~ the attached Figure 11 , the guiding device 154 can include a housing 1541, bearings 1542, and guiding keys 1543. Two sets of bearings 1542 are provided to respectively support and limit the screw rod 153 and the connecting rod 155. The guiding keys 1543 are located in the grooves of the nut 156 of the ball screw to restrict the rotational motion of the nut 156 of the ball screw so that it can only perform a linear motion along the direction of the guiding keys 1543.

[0062] Furthermore, a locking member 13 is provided on the lifting component 15. The locking member 13 is connected to the fixed component of the lifting component 15 to lock the moving component of the lifting component 15, ensuring that when the unit is operating, the moving component of the lifting component 15 and the windshield 11 remain fixed, ensuring safety. Specifically, refer to the attached Figure 12 , the locking member 13 includes a connecting member and two hoop members 131 connected by the connecting member. The connecting member can include a pin shaft 132 and a bolt 133. One of the hoop members 131 is connected to the fixed part of the lifting component 15. Specifically, it can be connected to the housing 1541. One ends of the two hoop members 131 are connected by the pin shaft 132 so that they can rotate around the pin shaft 132, and the other ends are connected by the bolt 133. By tightening the bolt 133, the two hoop members 131 can cooperate with each other to clamp the connecting rod 155 to play a locking role.

[0063] In summary, after a person of ordinary skill in the art reads the documents of the present utility model, all other corresponding transformation schemes made without creative mental labor according to the technical solutions and technical concepts of the present utility model shall fall within the scope protected by the present utility model.

Claims

1. A wind shielding device for a hydro-turbine generator, comprising an upper frame (6) and a plurality of wind shielding plates (1), characterized in that: A keel (2) is provided between two adjacent windshields (1), and the keel (2) is connected to the upper frame (6) via a support rod (3); a locking device (4) is fixed to the keel (2), and two ends of the windshield (1) are respectively connected to the two adjacent keels (2) via the locking devices (4).

2. A wind shielding device for a hydro-generator according to claim 1, characterized in that: The locking device (4) comprises a mounting seat (7), a clamping plate (8) and an adjusting rod (9); the mounting seat (7) is fixed on the keel (2), the clamping plate (8) is hinged to the mounting seat (7), and the windshield (1) is located between the clamping plate (8) and the keel (2); the clamping plate (8) is configured to clamp or loosen the windshield (1) under the drive of the adjusting rod (9).

3. A wind shielding device for a hydro-generator according to claim 2, characterized in that: The utility model also comprises a base (11), wherein the base (11) is arranged on the keel (2); the adjusting rod (9) passes through the pressing plate (8) and the base (11) in sequence; the adjusting rod (9) located above the pressing plate (8) is also provided with a rotating handle (17); the adjusting rod (9) located below the pressing plate (8) is also provided with a locking rod (12); a through groove for the locking rod (12) to pass through is provided in the base (11); a locking groove (14) matching the locking rod (12) is provided at the lowest point of the lower surface of the base (11); and the lower surface of the base (11) is in a conical shape inclined toward the locking groove (14).

4. A wind shielding device for a hydro-generator according to claim 3, characterized in that: It also includes an elastic component (10); a cavity (5) is provided in the pressing plate (8), an extrusion plate (16) is provided on the adjustment rod (9) located in the cavity (5), and the elastic component (10) is arranged between the extrusion plate (16) and the lower surface of the cavity (5).

5. A wind shielding device for a hydro-generator according to any one of claims 1 to 4, characterized in that: The wind shield (1) is connected to a lifting assembly (15) configured to drive the wind shield (1) to rise and fall.

6. A wind shielding device for a hydro-generator according to claim 5, characterized in that: The lifting assembly (15) comprises a servo motor (151), a coupling (152), a ball screw and a connecting rod (155); the servo motor (151) is connected to the lead screw (153) of the ball screw via the coupling (152); and the connecting rod (155) is respectively connected to the windshield (1) and the nut (156) of the ball screw.

7. A wind shielding device for a hydro-generator according to claim 6, characterized in that: It also includes a guide device (154), wherein the guide device (154) includes a guide key (1543) arranged along a straight line direction and matching the nut (156).

8. A wind shielding device for a hydro-generator according to claim 7, characterized in that: The guide device (154) further comprises bearings (1542) respectively matching the screw rod (153) and the connecting rod (155).

9. A wind shielding device for a hydro-generator according to claim 5, characterized in that: It also comprises a locking member (13), wherein the locking member (13) is connected to a fixed part of the lifting assembly (15) and is configured to lock a moving part of the lifting assembly (15).

10. A wind shielding device for a hydro-generator according to claim 9, characterized in that: The locking member (13) comprises a connecting member and two clamps (131) connected via the connecting member; when the two clamps (131) are fixed, they clamp the moving part of the lifting assembly (15).

Images