Discharging device of wind power variable pitch system

Abstract

The utility model relates to a discharge device of a wind power variable pitch system. The discharge device comprises a discharge box, the clamping assembly is connected with the discharge box in a clamped mode, the clamping assembly is used for rapidly fixing and conveniently disassembling a power transmission line connected with the discharge box, and the clamping assembly comprises a top plate, a first spring, a first clamping plate, a first sliding rod, a second clamping plate, a second sliding rod and a second spring; the first spring and the second spring are fixedly arranged on the two opposite side faces in the clamping groove respectively, the first clamping plate and the second clamping plate are fixedly connected with the movable end of the first spring and the movable end of the second spring respectively, the side walls of the first clamping plate and the second clamping plate are fixedly connected with the first sliding rod and the second sliding rod respectively, and the side walls of the first sliding rod and the second sliding rod are connected in a penetrating mode. Through the use of the clamping assembly and the base, a power transmission line connected to the discharge box can be quickly fixed and disassembled, the power transmission line is prevented from falling off, meanwhile, the discharge box can be conveniently and quickly fixed, and the efficiency of disassembling and assembling a plurality of discharge boxes can be improved.

Description

Technical Field

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

[0002] Wind power pitching refers to an important technology in wind turbines. Wind power pitching adjusts the angle of the blades to adapt to the change of wind force, thereby ensuring the safe operation of the generator, improving the power generation efficiency and power transmission. The use of wind power pitching technology can make better use of resources, and the generated electric energy can be used by machinery;

[0003] After retrieval, a Chinese patent with the publication number of CN208028627U discloses a discharge device for a wind power pitch cabinet, which includes a metal frame. A number of terminal block groups are arranged in the metal frame. A number of mutually parallel discharge resistors are arranged on each row of terminal block groups. Two wires are led out from the terminal block, and the two wires are connected to both ends of a super capacitor bank through a secondary circuit breaker fixed on the metal frame; the metal frame is a hollow structure. The discharge device for the wind power pitch cabinet is composed of a metal frame, a hanging rod, etc. Its structure is simple, flexible and light in assembly, and has strong mobility; moreover, a number of 15Ω 1000W resistors are connected in parallel and fixed on the metal frame, greatly improving the discharge efficiency and making the discharge more thorough. There is no noise and high efficiency during discharge, and it is suitable for complete discharge of the wind power pitch cabinet.

[0004] In this patent, each time of discharging, it is necessary to turn the connecting screws to connect or separate the discharge box and the power transmission line. The power transmission line on the discharge box cannot be quickly disassembled and fixed. When it is necessary to disassemble and assemble multiple discharge boxes, it is not conducive to improving work efficiency. At the same time, the discharge box cannot be quickly fixed, which is not conducive to centralized discharge treatment of the discharge box. Content of the Utility Model

[0005] Aiming at the technical problem that in the existing patent, each time of discharging, it is necessary to turn the connecting screws to connect or separate the discharge box and the power transmission line. The power transmission line on the discharge box cannot be quickly disassembled and fixed. When it is necessary to disassemble and assemble multiple discharge boxes, it is not conducive to improving work efficiency. At the same time, the discharge box cannot be quickly fixed, which is not conducive to centralized discharge treatment of the discharge box, the utility model provides a discharge device for a wind power pitch system.

[0006] The technical solution adopted by the utility model is: a discharge device for a wind power pitch system, including:

[0007] A discharge box;

[0008] Clamping assembly, the clamping assembly is snap-connected to the discharge box, and the clamping assembly is used for quickly fixing and conveniently disassembling the power transmission line connected to the discharge box. The clamping assembly includes a top plate, a first spring, a first clamping plate, a first sliding rod, a second clamping plate, a second sliding rod and a second spring. A clamping groove is formed on the top plate. The first spring and the second spring are respectively fixedly installed on two opposite side surfaces in the clamping groove. The first clamping plate and the second clamping plate are respectively fixedly connected to the movable ends of the first spring and the second spring. The side walls of the first clamping plate and the second clamping plate are respectively fixedly connected to the first sliding rod and the second sliding rod. The side walls of the first sliding rod and the second sliding rod are mutually penetrated and connected. A sliding groove is formed on the side wall of the clamping groove. The first sliding rod and the second sliding rod are penetrated in the sliding groove.

[0009] Furthermore, the clamping assembly is welded to the base, the discharge box is snap-connected to the base, and the base is used for fixing the bottom of the discharge box.

[0010] Furthermore, a rear baffle is welded to the side wall of the base, a side baffle is welded to the top of the base, a limiting groove is formed on the top of the base, a vertical spring is fixedly installed in the limiting groove, and a pressing plate is fixedly installed at the top of the vertical spring. The pressing plate is snap-connected in the limiting groove.

[0011] Furthermore, a connecting piece is welded to the side wall of the base, and the connecting piece is used for extending the edge of the base.

[0012] Furthermore, a screw hole is formed on the connecting piece.

[0013] Furthermore, a bolt is threadedly connected in the screw hole.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. Through the setting of the clamping assembly of the present utility model, the effects of quickly fixing and disassembling the power transmission line on the discharge box can be achieved, the power transmission line can be prevented from falling off, and at the same time, the steps of screwing multiple screws can be reduced, and the efficiency of the discharging process can be improved.

[0016] 2. Secondly, through the setting of the clamping assembly and the base of the present utility model, the effects of conveniently and quickly disassembling and assembling the discharge box can be achieved, and it is convenient to centrally discharge different discharge boxes. Description of the Drawings

[0017] Figure 1 is the front view structural schematic diagram of the present utility model;

[0018] Figure 2 is the top view structural schematic diagram of the base of the present utility model;

[0019] Figure 3It is a schematic top view structure diagram of the clamping assembly of the present utility model;

[0020] Figure 4 It is a schematic exploded structure diagram of the clamping assembly of the present utility model.

[0021] In the figure, the markings are: 1, discharge box; 2, clamping assembly; 201, top plate; 202, first spring; 203, first clamping plate; 204, first sliding rod; 205, second clamping plate; 206, second sliding rod; 207, second spring; 208, card slot; 209, sliding groove; 3, base; 301, rear baffle; 302, side baffle; 303, limit groove; 304, vertical spring; 305, pressing plate; 4, connecting piece; 5, screw hole; 6, bolt. Detailed implementation manners

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] The following combines the attached Figures 1-4 To further illustrate the present utility model.

[0025] In order to solve the problems existing in the background technology, the present application proposes the following technical solution: A discharge device for a wind power pitch system.

[0026] In the specific technical solution, it includes a discharge box 1 and a clamping assembly 2;

[0027] Such as Figure 1 And Figure 3 、 4As shown in the figure, the discharge box 1 can be used to concentrate and release electrical energy. The clamping assembly 2 is snap-connected to the discharge box 1. The clamping assembly 2 is used to quickly fix and facilitate the disassembly of the power transmission line connected to the discharge box 1. The clamping assembly 2 includes a top plate 201, a first spring 202, a first clamping plate 203, a first sliding rod 204, a second clamping plate 205, a second sliding rod 206, and a second spring 207. A clamping groove 208 is formed on the top plate 201. The clamping groove 208 on the top plate 201 can limit the first clamping plate 203 and the second clamping plate 205. The first spring 202 and the second spring 207 are respectively fixedly installed on two opposite side surfaces in the clamping groove 208. The first spring 202 and the second spring 207 are arranged oppositely and can conveniently drive the first clamping plate 203 and the second clamping plate 205 to squeeze in opposite directions. The first clamping plate 203 and the second clamping plate 205 are respectively fixedly connected to the movable ends of the first spring 202 and the second spring 207. The side walls of the first clamping plate 203 and the second clamping plate 205 are respectively fixedly connected to the first sliding rod 204 and the second sliding rod 206. The side walls of the first sliding rod 204 and the second sliding rod 206 are mutually penetrated and connected. A sliding groove 209 is formed on the side wall of the clamping groove 208. The first sliding rod 204 and the second sliding rod 206 are penetrated in the sliding groove 209. The sliding groove 209 can limit the first sliding rod 204 and the second sliding rod 206.

[0028] Fix the discharge box 1 between the clamping assembly 2 and the base 3. Pressing rods are respectively installed on the first sliding rod 204 and the second sliding rod 206. The pressing rod on the first sliding rod 204 penetrates the side wall of the second sliding rod 206, and the pressing rod on the second sliding rod 206 penetrates the side wall of the first sliding rod 204. While pressing the pressing rods on the first sliding rod 204 and the second sliding rod 206, the first sliding rod 204 and the second sliding rod 206 move away from each other. The first sliding rod 204 and the second sliding rod 206 respectively drive the first clamping plate 203 and the second clamping plate 205 to move away from each other. The first clamping plate 203 and the second clamping plate 205 respectively squeeze the first spring 202 and the second spring 207. After the first spring 202 and the second spring 207 are compressed, they generate elastic forces. Pass the power transmission line through the middle of the first clamping plate 203 and the second clamping plate 205, and then insert it into the jack on the discharge box 1. Release the first sliding rod 204 and the second sliding rod 206. The first clamping plate 203 and the second clamping plate 205 lose control. The elastic forces of the first spring 202 and the second spring 207 will respectively squeeze the first clamping plate 203 and the second clamping plate 205. The first clamping plate 203 and the second clamping plate 205 move closer to each other. Rubber sheets are fixedly installed on the opposite surfaces of the first clamping plate 203 and the second clamping plate 205. The rubber sheets on both sides squeeze the power transmission line, which can quickly fix the power transmission line. At the same time, the rubber sheets can increase the friction between the first clamping plate 203 and the second clamping plate 205 and the power transmission line.

[0029] As Figures 3-4As shown, the clamping assembly 2 is welded to the base 3, and the discharge box 1 is snap-fitted to the base 3. The base 3 is used to fix the bottom of the discharge box 1. A rear baffle 301 is welded to the side wall of the base 3, and side baffles 302 are welded to the top of the base 3. There are two side baffles 302, which are respectively oppositely arranged on the opposite sides of the base 3. A limiting groove 303 is formed in the top of the base 3, and a vertical spring 304 is fixedly installed in the limiting groove 303. The top of the vertical spring 304 is fixedly installed with a pressing plate 305. The pressing plate 305 is snap-fitted in the limiting groove 303. The limiting groove 303 can limit the pressing plate 305 to prevent the pressing plate 305 from tilting.

[0030] By pressing the pressing plate 305, the pressing plate 305 squeezes the vertical spring 304, and the vertical spring 304 generates an elastic force. The pressing plate 305 is pressed into the limiting groove 303. Place the discharge box 1 on the base 3. The discharge box 1 is stuck between the rear baffle 301 and the two side baffles 302. Release the pressing plate 305, and the vertical spring 304 pushes the pressing plate 305. The pressing plate 305 extends out of the limiting groove 303, and the pressing plate 305 can fix the discharge box 1.

[0031] As Figures 1-2 shown, a connecting piece 4 is welded to the side wall of the base 3. The connecting piece 4 is used to extend the edge of the base 3. A screw hole 5 is formed in the connecting piece 4, and a bolt 6 is threadedly connected in the screw hole 5. Screw the bolt 6 into the screw hole 5, and the bolt 6 is fixedly connected to the connecting piece 4 through the screw hole 5. Then screw the bolt 6 into the bottom surface, and the bolt 6 is fixedly connected to the bottom surface. The bolt 6 drives the connecting piece 4 to be fixedly connected to the bottom surface through the screw hole 5. The connecting piece 4 drives the base 3 to be fixedly connected to the bottom surface, which can fix the base 3 and facilitate the base 3 to fix the discharge box 1 and the clamping assembly 2.

[0032] The standard parts used in the present utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0033] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A discharge device for a wind turbine pitch control system, characterized in that: include: Discharge box (1); A clamping assembly (2), the clamping assembly (2) being clamped with the discharge box (1), the clamping assembly (2) being used for quickly fixing and conveniently disassembling a power transmission line connected to the discharge box (1), the clamping assembly (2) comprising a top plate (201), a spring 1 (202), a clamping plate 1 (203), a slide bar 1 (204), a clamping plate 2 (205), a slide bar 2 (206) and a spring 2 (207), the top plate (201) being provided with a clamping groove (208), the spring 1 (202) and the spring 2 (207) being respectively fixedly mounted in the clamping groove (208) and opposite to each other. On the two side surfaces, the card plate 1 (203) and the card plate 2 (205) are fixedly connected to the movable ends of the spring 1 (202) and the spring 2 (207), respectively; the side walls of the card plate 1 (203) and the card plate 2 (205) are fixedly connected to the slide bar 1 (204) and the slide bar 2 (206), respectively; the side walls of the slide bar 1 (204) and the slide bar 2 (206) are connected to each other through penetration; the side wall of the card slot (208) is provided with a slide slot (209), and the slide bar 1 (204) and the slide bar 2 (206) are penetrated in the slide slot (209).

2. A wind turbine pitch control system discharge device according to claim 1, characterized in that: The clamping assembly (2) is welded on the base (3), the discharge box (1) is clamped on the base (3), and the base (3) is used to fix the bottom of the discharge box (1).

3. A wind turbine pitch control system discharge device according to claim 2, characterized in that: A rear baffle (301) is welded to the side wall of the base (3), a side baffle (302) is welded to the top of the base (3), a limiting groove (303) is provided on the top of the base (3), a vertical spring (304) is fixedly installed in the limiting groove (303), a pressure plate (305) is fixedly installed on the top of the vertical spring (304), and the pressure plate (305) is clamped in the limiting groove (303).

4. A wind turbine pitch control system discharge device according to claim 3, characterized in that: A connecting piece (4) is welded to the side wall of the base (3), and the connecting piece (4) is used to extend the edge of the base (3).

5. A wind turbine pitch control system discharge device according to claim 4, characterized in that: The connecting piece (4) is provided with a screw hole (5).

6. A wind turbine pitch control system discharge device according to claim 5, characterized in that: The screw hole (5) is internally threadedly connected with a bolt (6).

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