A dismantling tool for a driving wheel of a variable pitch system

Abstract

The utility model relates to the technical field of variable pitch system driving wheel, specifically discloses a variable pitch system driving wheel dismantling tool, including support seat, its characterized in that the top of support seat is provided with hollow jack, the middle part of hollow jack is connected with the lifting lever, the bottom of lifting lever is connected with the connecting disc, the middle part of connecting disc is connected with the connecting bolt, the bottom of lifting lever is provided with the deflection assembly, and the lifting lever is connected with the connecting disc through the deflection assembly, the bottom of support seat is provided with the sliding slot, and the middle part of sliding slot is connected with the support leg. Through the connecting disc in the device and the driving wheel in the variable pitch system are connected, then the rising of lifting lever is driven through hollow jack, to drive the driving wheel to separate from the variable pitch system. The problem that the driving wheel in the variable pitch system is difficult to remove by force because of fastening connection through the spline is solved.

Description

Technical Field

[0001] This utility model relates to the field of pitch system drive wheel technology, and more specifically, to a tooling for removing the drive wheel of a pitch system. Background Technology

[0002] The pitch control system refers to the actuator in a wind turbine that controls the blade angle, while the drive wheel is the key mechanical component that transmits power and controls the rotation of the blades.

[0003] When the existing pitch system is running, the bearings on the drive wheel need to withstand multiple forces at the same time and are under high stress for a long time, which makes the bearings very easy to be damaged. However, because the drive wheel is fastened to the pitch system through splines, there is no favorable force application point or space for the drive wheel, making it difficult to remove. The only option is to replace the entire pitch system. Utility Model Content

[0004] The purpose of this utility model is to provide a tooling for removing the drive wheel of a pitch system, which solves the problem that the drive wheel in the pitch system is difficult to remove by force because it is fastened by a spline.

[0005] This utility model is achieved through the following technical solution: This utility model provides a tooling for removing the drive wheel of a pitch system, including a support base, a hollow jack on the top of the support base, a lifting rod connected to the middle of the hollow jack, a connecting disc connected to the bottom of the lifting rod, a connecting bolt connected to the middle of the connecting disc, a deflection assembly at the bottom of the lifting rod, and the lifting rod connected to the connecting disc through the deflection assembly. A sliding groove is provided at the bottom of the support base, and a support leg is connected to the middle of the sliding groove.

[0006] Preferably, the hollow jack also includes an injection pipe, which is connected to one side of the hollow jack.

[0007] Preferably, the bottom of the lifting rod passes through the support seat.

[0008] Preferably, several connecting bolts are located at the top of the connecting disc near the edge.

[0009] Preferably, the deflection assembly includes a hinge plate and a hinge seat, the hinge plate being disposed at the bottom of the lifting rod and the hinge seat being disposed at the top of the connecting disc.

[0010] Preferably, the hinge plate and the hinge seat are fitted together at the center, and hinge shafts are provided on both sides of the hinge plate to connect with the hinge seat.

[0011] Preferably, the support base also includes a pin hole and a pin, the pin hole being located on the top of the support base, and the pin being connected in the pin hole.

[0012] Preferably, the pin hole is connected to the sliding groove, and the pin passes through the pin hole and connects to the top of the support leg.

[0013] Preferably, the connecting disc also includes bolt holes, which are located in the middle of the connecting disc and arranged in a plurality of bolt holes.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: 1. The device connects to the drive wheel in the pitch system via a connecting disc. Then, a hollow jack drives the lifting rod to rise, which in turn drives the connecting disc to rise and pull the drive wheel away from the pitch system.

[0015] 2. The device is also equipped with a deflection assembly, which is used to hinge the connecting disc so that when the pitch system housing on the support is not in a flat or tilted state, the connecting disc can be deflected to adapt to the tilted placement of the support and align with the top of the drive wheel.

[0016] 3. The support legs connected by the sliding groove in this device allow the support legs to move and adjust their position along the sliding groove, enabling the support base to be stably placed on pitch system housings of different sizes, thus avoiding the situation where the support legs of the support base cannot be supported and placed on the housing if the pitch system housing is too small. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This utility model Figure 1 A magnified structural diagram of point A in the middle.

[0019] Figure 3 This is a top view of the connecting disc of this utility model.

[0020] Reference numerals: 1-Support base, 101-Support leg, 102-Pin hole, 103-Sliding groove, 104-Pin, 2-Hollow jack, 201-Injection pipe, 3-Lifting rod, 301-Hinge plate, 302-Connecting disc, 3021-Connecting bolt, 3022-Hinge base, 303-Bolt hole. Detailed Implementation

[0021] The following is combined with Figures 1 to 3 This utility model will be described in detail.

[0022] A tooling for removing the drive wheel of a pitch control system includes a support base 1. A hollow jack 2 is mounted on the top of the support base 1. A lifting rod 3 is connected to the middle of the hollow jack 2. A connecting disc 302 is connected to the bottom of the lifting rod 3. A connecting bolt 3021 is connected to the middle of the connecting disc 302. A deflection assembly is mounted on the bottom of the lifting rod 3. The lifting rod 3 is connected to the connecting disc 302 through the deflection assembly. A sliding groove 103 is mounted on the bottom of the support base 1. A support leg 101 is connected to the middle of the sliding groove 103. The hollow jack 2 also includes an injection pipe 201, which is connected to one side of the hollow jack 2. The bottom of the lifting rod 3 penetrates through the support base 1. Several connecting bolts 3021 are mounted on the top of the connecting disc 302 near the edge. The support base 1 includes two support legs, which are mounted on both sides of the bottom of the support base 1. The connecting disc 302 is located between the two support legs.

[0023] First, align the connecting disc 302 with the top of the drive wheel of the pitch system. Then, align the connecting bolt 3021 with the bolt hole on the top of the drive wheel. Connect the connecting disc 302 to the drive wheel using the connecting bolt 3021. Next, connect the top of the connecting disc 302 to the lifting rod 3. Then, lower the support base 1 through the lifting rod 3 and place it on the housing of the pitch system. At the same time, the lifting rod 3 will also pass through the hollow jack 2. After the lifting rod 3 and the hollow jack 2 are connected, the hollow jack 2 is used to control the lifting rod 3 to lift it, so that the connecting disc 302 will drag the connected drive wheel to lift as well, thereby separating the drive wheel from the pitch system.

[0024] Furthermore, the deflection assembly includes a hinge plate 301 and a hinge seat 3022. The hinge plate 301 is disposed at the bottom of the lifting rod 3, and the hinge seat 3022 is disposed at the top of the connecting disc 302. The hinge plate 301 and the hinge seat 3022 are engaged in the middle. Hinges are provided on both sides of the hinge plate 301 and connected to the hinge seat 3022.

[0025] Meanwhile, the connecting disc 302 is hinged together with the hinge plate 301 at the bottom of the lifting rod 3 via the top hinge seat 3022, so that the lifting rod 3 can be deflected to a certain extent. When the outer shell of the pitch system is uneven, after the support seat 1 is placed on the outer shell, the connecting disc 302 can still be flatly attached to the drive wheel for connection.

[0026] Furthermore, the support base 1 also includes a pin hole 102 and a pin 104. The pin hole 102 is located at the top of the support base 1, and the pin 104 is connected in the pin hole 102. The pin hole 102 communicates with the sliding groove 103, and the pin 104 passes through the pin hole 102 and connects to the top of the support leg 101. The connecting disc 302 also includes bolt holes 303, which are located in the middle of the connecting disc 302, and several bolt holes 303 are arranged in a row.

[0027] Finally, the top of the support leg 101 is slidably connected to the sliding groove 103, allowing the support leg 101 to move within the sliding groove 103 to adjust the position of the two support legs 101. This adapts to different sizes of pitch system housings, preventing the support leg 101 from being suspended without support if the pitch system housing is too small. Then, the support leg 101 is moved to different positions and aligned with the corresponding pin holes 102, and fixedly connected by pins 104 to prevent it from sliding on its own. At the same time, the bolt holes 303 on the connecting disc 302 are also arranged in several rows, allowing the connecting bolts 3021 to be connected in bolt holes 303 at different positions to adapt to the position changes of the bolt connection slots on the drive wheel in different pitch systems.

[0028] The following is a detailed implementation process of this utility model: First, align the connecting disc 302 with the top of the drive wheel of the pitch system. Then, align the connecting bolt 3021 with the bolt hole on the top of the drive wheel. Connect the connecting disc 302 and the drive wheel together using the connecting bolt 3021. Then, connect the top of the connecting disc 302 with the lifting rod 3. Lower the support base 1 through the lifting rod 3. At the same time, the lifting rod 3 will also pass through the hollow jack 2. After the lifting rod 3 and the hollow jack 2 are connected, the hollow jack 2 is used to control the lifting rod 3 to lift it, so that the connecting disc 302 will drag the connected drive wheel to lift as well, thereby separating the drive wheel from the pitch system.

[0029] Meanwhile, the connecting disc 302 is hinged together with the hinge plate 301 at the bottom of the lifting rod 3 via the top hinge seat 3022, so that the lifting rod 3 can be deflected to a certain extent. When the outer shell of the pitch system is uneven, after the support seat 1 is placed on the outer shell, the connecting disc 302 can still be flatly attached to the drive wheel for connection.

[0030] Finally, the top of the support leg 101 is slidably connected to the sliding groove 103, allowing the support leg 101 to move within the sliding groove 103 to adjust the position of the two support legs 101. This adapts to different sizes of pitch system housings, preventing the support leg 101 from being suspended without support if the pitch system housing is too small. Then, the support leg 101 is moved to different positions and aligned with the corresponding pin holes 102, and fixedly connected by pins 104 to prevent it from sliding on its own. At the same time, the bolt holes 303 on the connecting disc 302 are also arranged in several rows, allowing the connecting bolts 3021 to be connected in bolt holes 303 at different positions to adapt to the position changes of the bolt connection slots on the drive wheel in different pitch systems.

Claims

1. A tooling for removing the drive wheel of a pitch system, comprising a support base (1), characterized in that, A hollow jack (2) is provided on the top of the support base (1). A lifting rod (3) is connected to the middle of the hollow jack (2). A connecting disc (302) is connected to the bottom of the lifting rod (3). A connecting bolt (3021) is connected to the middle of the connecting disc (302). A deflection assembly is provided at the bottom of the lifting rod (3). The lifting rod (3) is connected to the connecting disc (302) through the deflection assembly. A sliding groove (103) is provided at the bottom of the support base (1). A support leg (101) is connected to the middle of the sliding groove (103).

2. The pitch system drive wheel removal fixture according to claim 1, characterized in that, The hollow jack (2) also includes an injection pipe (201), which is connected to one side of the hollow jack (2).

3. The pitch system drive wheel removal fixture according to claim 1, characterized in that, The bottom of the lifting rod (3) passes through the support seat (1).

4. The pitch system drive wheel removal fixture according to claim 1, characterized in that, Several connecting bolts (3021) are located on the top of the connecting disc (302) near the edge.

5. The pitch system drive wheel removal fixture according to claim 1, characterized in that, The deflection assembly includes a hinge plate (301) and a hinge seat (3022), the hinge plate (301) being disposed at the bottom of the lifting rod (3) and the hinge seat (3022) being disposed at the top of the connecting disc (302).

6. The pitch system drive wheel removal fixture according to claim 5, characterized in that, The hinge plate (301) is engaged with the middle part of the hinge seat (3022), and hinge shafts are provided on both sides of the hinge plate (301) to connect with the hinge seat (3022).

7. The pitch system drive wheel removal fixture according to claim 1, characterized in that, The support base (1) also includes a pin hole (102) and a pin (104). The pin hole (102) is located on the top of the support base (1), and the pin (104) is connected in the pin hole (102).

8. The pitch system drive wheel removal fixture according to claim 7, characterized in that, The pin hole (102) is connected to the sliding groove (103), and the pin (104) passes through the pin hole (102) and is connected to the top of the support leg (101).

9. The pitch system drive wheel removal fixture according to claim 1, characterized in that, The connecting disc (302) also includes bolt holes (303), which are located in the middle of the connecting disc (302) and are arranged in a plurality of manner.

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