CN201714596U - Wind wheel locking device of wind turbine generator system - Google Patents

Abstract

The utility model relates to a safety protection device for a wind power generator set, in particular to a wind wheel locking device for a wind power generator set, which includes a latch, a fork, a connecting frame, an adjusting screw and a support, wherein the support is installed in the wind power generator cabin On the base, one end of the adjusting screw is connected to the support, and the other end is threadedly connected to one end of the connecting frame, and the rotating pair of the connecting frame and the adjusting screw is transformed into a moving pair of the connecting frame through the threaded connection of the two; One end of the fork is provided with a latch, and the other end is a guide rod, which is inserted into the other end of the connection frame and moves together with the connection frame. The utility model adopts a disc spring and an adjusting screw to adjust the distance, so that the load on the wind wheel and the locking device is greatly reduced, thereby ensuring its safe and reliable use; at the same time, the brake disc of the high-speed shaft is locked first, and then locked The wind wheel, so that the operator can be reduced to the minimum, the labor intensity is reduced, and the loading chance of the locking device is reduced.

Description

Wind turbine locking device

technical field

The utility model relates to a safety protection device of a wind power generator set, in particular to a wind wheel locking device of a wind power generator set.

Background technique

At present, the commonly used wind wheel locking device is mainly composed of a locking pin installed on a bearing seat or a nacelle seat. When the wind turbine stops, rotate the high-speed shaft brake disc to align the hole on the low-speed shaft locking disc, insert the locking pin, and then use hydraulic clamps to clamp the high-speed shaft brake disc. Due to the large rotational inertia of the wind wheel, when the locking pin is inserted, the locking pin is often bent, which makes it difficult to pull out the locking pin, and equipment such as the locking disc are subjected to greater stress.

Utility model content

In order to solve the problem that the existing locking pin is easily bent and the equipment bears relatively large stress, the purpose of the utility model is to provide a wind wheel locking device for a wind power generating set. The locking device can not only effectively lock the wind wheel without being damaged, but also prevent the locking disk and the equipment fixing the locking device from being damaged due to excessive stress.

The purpose of this utility model is achieved through the following technical solutions:

The utility model comprises a bolt, a fork, a connecting frame, an adjusting screw and a support, wherein the support is installed on the base of the wind turbine nacelle, one end of the adjusting screw is connected with the support, and the other end is connected with one end of the connecting frame. Threaded connection, the rotating pair of the connecting frame and the adjusting screw is converted into a moving pair of the connecting frame through the threaded connection of the two; one end of the fork is provided with a pin, and the other end is a guide rod, which is inserted into the connecting frame. The other end moves together with the connection frame.

Wherein: the connecting frame is provided with a partition, the guide rod passes through the other end of the connecting frame and the partition, and the first gasket, the disc-shaped The spring and the second gasket, the guide rod is provided with a lock nut abutting against the second gasket; the end surface of the partition and the other end of the connecting frame are respectively provided with a light hole, and the guide rod passes through the light hole, The outer diameter of the first gasket is larger than the diameter of the light hole on the other end surface of the connecting frame, and the first gasket abuts against the notch on the guide rod through the disc spring; the outer diameter of the second gasket is larger than The diameter of the light hole on the partition, the lock nut is threaded on the guide rod, the outer diameter of the lock nut is smaller than the diameter of the light hole on the partition; one end of the fork is "U" shaped, and has a hole, and the pin is inserted into the hole; one end of the adjusting screw is provided with an external thread, and the other end is a pin-shaped structure, which is hinged with the support; the locking device is installed on the side of the locking disc between the wind wheel and the main shaft. One, the entire locking device can rotate around a pin hinged with the support.

Advantage and positive effect of the present utility model are:

1. The utility model adopts a disc spring and an adjusting screw to adjust the distance. The disc spring has a large rigidity and can be stressed in two directions. The load received is greatly reduced, thus ensuring the safe and reliable use of the locking device; the rotating pair of the connecting frame and the adjusting screw is converted into a moving pair of the connecting frame, which can facilitate the insertion of the latch into the hole of the locking disc.

2. When the wind wheel stops, the high-speed shaft brake disc is first clamped by the hydraulic clamp without loosening again, and then the wind wheel is locked, so that the number of operators is reduced to a minimum, and only the adjustment screw of the locking device can be adjusted. The locking plate of the wind wheel is locked, which reduces the labor intensity.

3. The utility model is easy to operate, and the probability of the locking device and the equipment fixing it under heavy load is greatly reduced, so the chance of damage is also very small. Only when the high-speed shaft hydraulic clamp fails and the shrink disk of the speed-increasing gearbox fails, The locking device is put into loading; the probability of this failure is very small, so the damage to the locking device and the fixed equipment is also greatly reduced; even if the two failures occur, the locking device can make the wind wheel locked reliably without will turn.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Figure 2 is a bottom sectional view of Figure 1;

Among them: 1 is the bolt, 2 is the fork, 3 is the guide rod, 4 is the first gasket, 5 is the disc spring, 6 is the second gasket, 7 is the lock nut, 8 is the connecting frame, and 9 is the adjustment Screw rod, 10 is bearing, and 11 is dividing plate.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figure 1 and Figure 2, the utility model includes a latch 1, a fork 2, a first gasket 4, a disc spring 5, a second gasket 6, a lock nut 7, a connecting frame 8, an adjustment screw 9 and Support 10, wherein the support 10 is fixed on the base of the wind turbine nacelle by screws, and the support 10 has a hole; one end of the adjustment screw 9 is a pin-shaped structure, hinged in the hole of the support 10, and adjusting The other end of screw rod 9 is shaped on external thread. One end of the connecting frame 8 is provided with an internal thread, which is threadedly connected with the other end of the external thread of the adjusting screw rod 9 , and the rotating pair between the connecting frame 8 and the adjusting screw rod 9 can be converted into a moving pair of the connecting frame 8 through the threaded connection of the two. One end of the fork 2 is U-shaped and has a hole. The pin 1 is inserted into the hole, and the other end is a guide rod 3. The guide rod 3 is inserted in the other end of the connection frame 8 and moves together with the connection frame 8. . The connection frame 8 is a hollow cuboid or cylinder, and a partition 11 is arranged therein, and the partition 11 separates the connection frame 8 into two parts. The end faces of the other end of the partition plate 11 and the connecting frame 8 are respectively provided with a light hole, and the guide rod 3 passes through the light hole. On the guide rod 3 between the other end of the connection frame 8 and the partition plate 11, a first Gasket 4, disc spring 5 and second gasket 6, the outer diameter of the first gasket 4 is greater than the diameter of the light hole on the other end surface of the connection frame 8, the first gasket 4 abuts on the guide through the disc spring 5 Locate the seam on the rod 3. The outer diameter of the second spacer 6 is larger than the diameter of the light hole on the partition 11, and the lock nut 7 is screwed on the guide rod 3 and abuts against the second spacer 6, and the outer diameter of the lock nut 7 is smaller than the spacer 11 The diameter of the light hole above can be passed by the partition 11. The locking device is installed on the side of the locking disc between the wind wheel and the main shaft, one on the left and one on the left, and the whole locking device can rotate around the pin shaft hinged with the support 10 to ensure that it can be turned to the locking disc when locking is required.

The working principle of the utility model is:

When the wind rotor needs to be locked, the wind rotor is stopped, and the high-speed shaft brake disc is clamped by the hydraulic clamp. Rotate the connection frame 8, because one end of the adjustment screw 9 is hinged on the support 10, the connection frame 8 moves axially while rotating; when the connection frame 8 moves, the partition 11 pushes the second gasket 6, and then the second gasket 6 Sheet 6 compresses disc spring 5, utilizes the elastic force of disc spring 5 to push first washer 4, and drives fork 2 to move together with connecting frame 8 through first washer 4 to push the notch on guide rod 3. When the fork 2 moves with the connecting frame 8 to the hole on the fork 2 and the locking plate on the main shaft is aligned, the latch 1 is inserted into the hole to complete the locking.

Claims (6)

1. wind-driven generator group wind-wheel locking device, it is characterized in that: comprise latch (1), jaw (2), connecting frame (8), adjust screw rod (9) and bearing (10), wherein bearing (10) is installed on the base of wind generating set engine room, one end of described adjustment screw rod (9) is connected with bearing (10), the other end is connected with the threaded one end of connecting frame (8), and connecting frame (8) changes the sliding pair of connecting frame (8) into the revolute pair of adjusting screw rod (9) by both being threaded; One end of described jaw (2) is provided with latch (1), and the other end is guide rod (3), and this guide rod (3) is inserted in the other end of connecting frame (8), moves jointly with connecting frame (8).

2. by the described wind-driven generator group wind-wheel locking device of claim 1, it is characterized in that: be provided with dividing plate (11) in the described connecting frame (8), guide rod (3) is passed by connecting frame (8) the other end and dividing plate (11), be arranged with first pad (4), belleville spring (5) and second pad (6) on the guide rod (3) between connecting frame (8) the other end and the dividing plate (11) successively, described guide rod (3) is provided with the locking nut (7) with second pad (6) butt.

3. by the described wind-driven generator group wind-wheel locking device of claim 2, it is characterized in that: have unthreaded hole on the end face of the described dividing plate (11) and connecting frame (8) the other end, guide rod (3) is passed by unthreaded hole, the external diameter of described first pad (4) is greater than the diameter of unthreaded hole on connecting frame (8) the other end end face, and first pad (4) is connected to stop portion on the guide rod (3) by belleville spring (5); The external diameter of described second pad (6) is greater than the unthreaded hole diameter on the dividing plate (11), and described locking nut (7) is threaded on the guide rod (3), and the external diameter of locking nut (7) is less than the unthreaded hole diameter on the dividing plate (11).

4. by the described wind-driven generator group wind-wheel locking device of claim 1, it is characterized in that: an end of described jaw (2) is " U " shape, and has the hole, and latch (1) inserts in the hole.

5. by the described wind-driven generator group wind-wheel locking device of claim 1, it is characterized in that: an end of described adjustment screw rod (9) is provided with outside thread, and the other end is a bearing pin shape structure, hinged with bearing (10).

6. by the described wind-driven generator group wind-wheel locking device of claim 1, it is characterized in that: this locking device is installed in the side of the locking plate between wind wheel and the main shaft, about each one, whole locking device can be around the bearing pin rotation hinged with bearing (10).

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