CN111520293B

CN111520293B - Wind wheel locking device and wind wheel

Info

Publication number: CN111520293B
Application number: CN202010368454.XA
Authority: CN
Inventors: 张文超; 武胜飞; 梁国仲
Original assignee: Sany Renewable Energy Co Ltd
Current assignee: Sany Renewable Energy Co Ltd
Priority date: 2020-04-30
Filing date: 2020-04-30
Publication date: 2021-08-24
Anticipated expiration: 2040-04-30
Also published as: CN111520293A

Abstract

The invention provides a wind wheel locking device and a wind wheel, belonging to the technical field of wind power generation. The two ends of the supporting component move in the radial direction of the locking disc to realize the locking of the wind wheel, so that the axial plugging and unplugging action of the wind wheel lock pin in the prior art is avoided, and the problem that the wind wheel lock pin is easy to block in the prior art is solved.

Description

Wind wheel locking device and wind wheel

Technical Field

The invention relates to the technical field of wind power generation, in particular to a wind wheel locking device and a wind wheel.

Background

At present, a pin hole type structure or a spline type structure which is inserted and pulled along the direction of a main shaft of a wind wheel is mostly adopted in a wind wheel locking pin form, so that the locking function of the wind wheel when a fan is stopped for maintenance is realized. However, if the maintenance time of the fan is too long, or the fan is in a shutdown state for a long time, the phenomenon of locking pin jamming is often caused.

For example, patent CN102251936B discloses a wind turbine and a wind turbine locking device thereof, which is structured as shown in fig. 1, and the device achieves the locking function of the wind turbine by inserting or pulling out the locking hole of the locking disc along the main axis direction. In the figure 1, the lock pin 22 can extend or retract along the transverse direction, the existing locking disc 23 and the wind wheel are integrated to rotate along with the wind wheel, the wind wheel is locked when the lock pin 22 extends into a hole of the existing locking disc 23, and the wind wheel can rotate to generate electricity when the lock pin 22 is pulled out. The device can take place to rock and then make and contact repeatedly between current locking dish 23 and lockpin 22 when locking the fan for a long time because the wind wheel is when the locking state, and lockpin 22 and current locking dish 23 can take place plastic deformation because of the extrusion in the right side pinhole border department of current locking dish 23 between two parts when contact time repeatedly overlength, form the indentation between the two and cause the jamming phenomenon between lockpin 22 and the current locking dish 23 to can produce the phenomenon that lockpin 22 is difficult to extract.

Disclosure of Invention

The invention aims to provide a wind wheel locking device and a wind wheel.

The embodiment of the invention is realized by the following steps:

the locking disc is used for being fixedly connected with a wind wheel of a fan, an annular track is formed on the disc surface of the locking disc in the circumferential direction, and two supporting ends of the supporting assembly are respectively clamped with the annular track along the radial direction of the locking disc so as to lock the rotation of the wind wheel relative to the supporting assembly.

Optionally, the inner side and the outer side of the annular track are respectively provided with a locking structure, the inner side and the outer side of the annular track are located on the same radial extension line of the locking disc to form a locking structure group, and two supporting ends of the supporting assembly can be respectively matched and clamped with the two locking structures of the locking structure group along the radial direction of the locking disc.

Optionally, the inner side edge and the outer side edge of the annular rail are respectively provided with two annular ribs protruding out of the disc surface of the locking disc, and the two annular ribs have different radiuses to form the annular rail; the supporting component comprises two ejector rods hinged to each other, the end portions of the two ejector rods are respectively provided with a locking block, the locking structure is arranged on the annular rib and is matched with a clamping groove of the clamping block, one side of the clamping groove is provided with an opening, the opening of the clamping groove is opposite, the ejector rods are opened and closed through the two ejector rods, the two locking blocks are respectively arranged along the two clamping grooves corresponding to the openings in a sliding-in or sliding-out mode, and therefore the locking blocks are clamped with or disengaged from the clamping grooves.

Optionally, an annular rib protruding from the locking disc is arranged on the locking disc to form the annular track; the supporting component comprises two ejector rods hinged to each other, the end portions of the two ejector rods are respectively provided with a locking block, the locking structure is arranged on the annular rib and is matched with a clamping groove of the clamping block, one side of the clamping groove is provided with an opening, the two openings of the clamping groove are opposite, the ejector rods are opened and closed through the two ejector rods, the two locking blocks are respectively arranged along the two openings, slide out of or slide into the corresponding clamping grooves, and therefore the clamping block and the clamping grooves are disengaged from each other.

Optionally, the surfaces of the clamping groove and the locking block, which are clamped with each other, are planes.

Optionally, the width of the opening of the card slot is greater than the width of the bottom of the card slot.

Optionally, the number of the locking structure groups is multiple.

Optionally, the support assembly further comprises a support cylinder, the two ejector rods are hinged in the support cylinder, and two ends of the two ejector rods extend out of two ends of the support cylinder respectively.

Optionally, the support assembly further comprises a front chassis, and the support cylinder is disposed on the front chassis.

Another aspect of the embodiment of the present invention provides a wind wheel, which includes a wind wheel body and the above wind wheel locking device, wherein a locking disc of the wind wheel locking device is connected to the wind wheel body.

The embodiment of the invention has the beneficial effects that:

the wind wheel locking device and the wind wheel provided by the embodiment of the invention comprise a locking disc and a supporting assembly, wherein the locking disc is fixedly connected with the wind wheel of a fan, an annular track is formed on the disc surface of the locking disc in the circumferential direction, and two supporting ends of the supporting assembly are propped against the annular track along the radial direction of the locking disc and are tightly clamped with the annular track. The two supporting ends of the supporting component move in the radial direction of the locking disc to realize the locking of the wind wheel, so that the plugging and unplugging action of the wind wheel lock pin along the axial direction in the prior art is avoided, and the problem that the wind wheel lock pin is easy to block in the prior art is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural diagram of a conventional wind wheel locking device;

fig. 2 is a schematic structural diagram of a wind wheel locking device provided in an embodiment of the present invention;

fig. 3 is a sectional view taken along line a-a of fig. 2.

Icon: 1-locking the disc; 2-a front chassis; 3-a support cylinder; 4-locking the block; 6-an annular track; 7-a clamping groove; 8-a top rod; 9-a pin shaft; 22-a locking pin; 23-existing locking disk.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Referring to fig. 2, the present embodiment provides a wind wheel locking device, which includes a locking disc 1 and a supporting assembly, wherein the locking disc 1 is used for being fixedly connected with a wind wheel of a fan, an annular rail 6 is circumferentially formed on a disc surface of the locking disc 1, and two supporting ends of the supporting assembly are respectively clamped with the annular rail 6 along a radial direction of the locking disc 1, so as to lock rotation of the wind wheel relative to the supporting assembly, that is, lock the wind wheel.

The locking disc 1 is of a circular structure, an annular rail 6 is formed on the disc surface of the locking disc 1 in the circumferential direction, the annular rail 6 protrudes out of the disc surface of the locking disc 1, the support component is positioned on one side of the disc surface of the locking disc 1 and is positioned on one side close to the annular rail 6, when the wind wheel rotates, the locking disc 1 and the annular rail 6 are driven to rotate together, the support component does not rotate, the support component does not move relative to the axial direction of the locking disc 1, the support component is provided with two support ends, the two support ends of the support component move along the radial direction of the locking disc 1 so as to enable the support component to form relative movement with the annular rail 6 in the radial direction of the locking disc 1, the two support ends of the support component respectively slide to two peripheries of the annular rail 6 along the radial direction of the locking disc 1, the two support ends prop against the annular rail 6, and braking is realized through the friction force between the two support ends of the support component and the annular rail 6, to lock the wind wheel.

According to the wind wheel locking device provided by the embodiment of the invention, the locking disc 1 is fixedly connected with a wind wheel of a fan, the disc surface of the locking disc 1 is circumferentially provided with the annular track 6, and the two supporting ends of the supporting assembly are propped against the annular track 6 along the radial direction of the locking disc 1 and are tightly clamped with the annular track 6, so that when the two supporting ends of the supporting assembly are propped against the rotating annular track 6, a large friction force is formed between the two supporting ends and the annular track 6, and the locking disc 1 stops rotating through friction force braking, so that the wind wheel is locked for maintenance. Two support ends of the support component move in the radial direction of the locking disc 1 to realize the locking of the wind wheel, so that the plugging and unplugging action of the wind wheel lock pin along the axial direction in the prior art is avoided, and the problems that the wind wheel lock pin is difficult to pull out and is easy to clamp in the prior art are solved.

Further, the inner side and the outer side of the annular track 6 are respectively provided with a locking structure, the two locking structures are positioned on the same radial extension line of the locking disc 1 to form a locking structure group, the supporting assembly and the annular track 6 move relatively, and two supporting ends of the supporting assembly are radially clamped into the two locking structures of the locking structure group along the annular track 6 respectively so as to lock the wind wheel.

The inner side and the outer side of the annular track 6 are respectively provided with a locking structure, and the two locking structures are positioned on the same radial extension line of the locking disc 1, so that a group of locking structure groups is formed. When the wind wheel rotates, the locking disc 1 and the annular rail 6 rotate together with the wind wheel.

Two supporting ends of the supporting component are clamped into two annular peripheral locking structures of the annular track 6 respectively, so that the annular track 6 is clamped through the two supporting ends of the supporting component, the annular track 6 stops rotating, the locking disc 1 stops rotating, and the purpose of locking the wind wheel is achieved. On the contrary, when the two support ends of the support assembly are pulled out from the corresponding locking structures along the radial direction of the locking disk 1, that is, the support assembly is released from clamping, and at the moment, the locking disk 1 and the wind wheel rotate again. The locking structure enables the two supporting ends of the supporting component to be clamped more tightly with the annular rail 6, the wind wheel is locked more firmly, and the safety during maintenance is guaranteed.

The number of the locking structure groups can be multiple groups, two supporting ends of the supporting component are matched with any locking structure group to be clamped in, the multiple groups of locking structure groups can be uniformly distributed on the annular track 6, and the supporting component can conveniently select a certain group of locking structure groups to be clamped in according to opportunity to lock the wind wheel.

Through establish locking structure respectively on the inboard side and the outside limit at annular track 6, and two locking structures are located the same radial extension line of locking dish 1, and supporting component forms relative motion with annular track 6 on the radial direction of locking dish 1, and supporting component has two support ends, and two support ends of supporting component move along the radial direction of locking dish 1, block respectively or deviate from in the locking structure of two annular peripheries of annular track 6. When the wind wheel is clamped, the two supporting ends of the supporting component clamp the annular rail 6, so that the annular rail 6 stops rotating, the locking disc 1 stops rotating, and the purpose of locking the wind wheel is achieved. When disengaged, the support assembly releases the grip on the annular rail 6, at which point the locking disk 1 and the wind wheel can be rotated again. Therefore, the two support ends of the support assembly move in the radial direction of the locking disc 1 to clamp the annular rail 6 to realize the locking of the wind wheel, and the axial plugging action of the wind wheel lock pin in the prior art is avoided.

In this embodiment, when braking is performed by the friction between the two support ends of the support assembly and the annular rail 6, the two locking blocks 4 actually slide to the two corresponding locking structures of the annular rail 6 along the radial direction of the locking disk 1 respectively to abut against the annular rail 6, and the wind wheel is locked by the friction between the locking blocks 4 and the annular rail 6.

Specifically, the endless track 6 is formed in two ways. As shown in fig. 3, the first way is: the inside edge and the outside edge of annular track 6 are two protrusion in the annular muscle of locking dish 1 respectively, and the radius of two annular muscle is different in order to form annular track 6. As shown in fig. 2, the inner side and the outer side (i.e. two annular ribs) of the annular rail 6 protrude from the locking plate 1, and the portion between the two annular ribs is hollow, so that the annular rail 6 can be seen as a structure with two convex sides and a concave middle.

The supporting component comprises two push rods 8 which are hinged with each other, which can be understood as a structure of scissors, and the end parts of the two push rods 8 are respectively provided with a locking block 4. The supporting component further comprises a supporting cylinder 3 and a front chassis 2, and the two ejector rods 8 are hinged in the supporting cylinder 3 through a pin shaft 9, so that the two ejector rods 8 can be opened and closed conveniently.

Two ends of the two ejector rods 8 respectively extend out of two ends of the supporting barrel 3 and extend out of two ends of the supporting barrel 3, one end of the two ejector rods is provided with a locking block 4, and the other end of the two ejector rods is used for being connected with a driving mechanism and driving the ejector rods 8 to open and close through the driving mechanism. The supporting cylinder 3 is arranged on the front chassis 2, and the front chassis 2 is used for fixing the supporting component, so that the whole supporting component is kept immovable in the axial direction of the locking disc 1.

Specifically, the driving mechanism is respectively connected with the two push rods 8 and used for driving the two push rods 8 to open and close. The driving mechanism can be two telescopic cylinders, the two telescopic cylinders are arranged along the radial direction of the locking disc 1 in a collinear manner, the telescopic ends of the two telescopic cylinders are arranged in a back-to-back manner and are respectively connected with the two ejector rods 8, the telescopic direction of the telescopic end is the same as the opening and closing direction of the ejector rods 8, and the two ejector rods 8 can be opened and closed through the telescopic end.

The controller can also be used for respectively controlling the stretching synchronism of the two stretching cylinders, so that the two ejector rods 8 can be conveniently and automatically driven to open and close. Of course, the opening and closing movement can also be performed by manually operating the two push rods 8.

The locking structure is for establishing the draw-in groove 7 that matches the block with locking piece 4 on the annular muscle, and one side of draw-in groove 7 sets up the opening, and the opening direction is along locking 1 radial direction on the dish, and the opening of two draw-in grooves 7 of a set of locking structure group sets up relatively, and an opening direction is towards the 1 quotation centre of a circle of locking dish, and another opening direction is the locking 1 quotation centre of a circle dorsad. Two ejector pins 8 can open and shut, and two ejector pins 8 are fashionable, and the locking piece 4 of the tip of two ejector pins 8 all is located the concave part in the middle of the circular orbit 6, and when two ejector pins 8 were opened like this, because the opening of two draw-in grooves 7 sets up relatively, two locking pieces 4 slide respectively in the draw-in groove 7 on the corresponding annular muscle of both sides, can grasp circular orbit 6 like this to the locking wind wheel. Otherwise, the two locking blocks 4 slide out, and the wind wheel rotates again.

Through the opening and closing action of the two ejector rods 8 in the radial direction of the locking disc 1, the two locking blocks 4 slide in or out of the corresponding clamping grooves 7 along the two openings respectively, so that the locking blocks 4 are clamped with the clamping grooves 7 or are released from clamping.

A second way (not shown in the figures) of the circular track 6 is: the locking disc 1 is provided with an annular rib protruding from the locking disc 1 to form an annular track 6. At this moment, two annular peripheries of the annular rail 6 are two peripheries of the annular rib, the vertical distance between the two peripheries of the annular rib is the width of the annular rib, namely the width of the annular rail 6, the whole annular rib protrudes out of the locking disc 1, two sides of the annular rib are empty, and the annular rail 6 can be seen as a structure with a middle convex part and two concave parts.

The support assembly and locking structure are the same as in the first mode. At this time, one side of the clamping groove 7 is provided with an opening, and the openings of the two clamping grooves 7 of one locking structure group are arranged back to back. The two ejector rods 8 can be opened and closed, when the two ejector rods 8 are opened, the locking blocks 4 at the end parts of the two ejector rods 8 are respectively suspended on two sides of the annular rib, at the moment, the clamping is released, and the wind wheel is in a rotating state. When two ejector pins 8 are closed, because the openings of the two clamping grooves 7 are arranged in a back-to-back manner, the two locking blocks 4 slide into the corresponding clamping grooves 7 through the openings from the suspended positions respectively, and thus the annular rail 6 can be clamped to lock the wind wheel.

Through the opening and closing of the two ejector rods 8, the two locking blocks 4 slide out or slide into the corresponding clamping grooves 7 along the two openings respectively, so that the locking blocks 4 and the clamping grooves 7 are disengaged or clamped.

In order to further reduce the clamping stagnation probability possibly caused by locking for too long time between the locking disk 1 and the locking block 4, the surfaces of the clamping groove 7 and the locking block 4 which are mutually clamped are planes. Therefore, the wind wheel is in plane contact with the locking block 4 and the clamping groove 7 in the locking state, so that the pressure resistance between the locking disc 1 and the locking block 4 is improved, and the clamping stagnation phenomenon possibly caused by locking for too long time is avoided.

In addition, in order to enable the locking block 4 to easily slide into the clamping groove 7 from the opening, the width of the opening is larger than the width of the bottom of the clamping groove 7, namely, the clamping groove 7 can be seen as a trapezoid structure, the opening is a trapezoid large end, and the width of the bottom of the clamping groove 7 is the width of a trapezoid small end. And locking piece 4 and draw-in groove 7 block cooperation, locking piece 4 and trapezoidal tip size cooperation, the size of opening part just is greater than the cooperation size of locking piece 4 like this, and locking piece 4 slides easily in draw-in groove 7.

The embodiment of the invention also discloses a wind wheel, which comprises a wind wheel body and the wind wheel locking device of the embodiment, wherein the locking disc 1 of the wind wheel locking device is connected with the wind wheel body.

The wind wheel comprises the same structure and beneficial effects as the wind wheel locking device in the previous embodiment. The structure and the beneficial effects of the wind wheel locking device have been described in detail in the foregoing embodiments, and are not described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind wheel locking device is characterized by comprising a locking disc and a supporting assembly, wherein the locking disc is fixedly connected with a wind wheel of a fan, an annular track is formed on the disc surface of the locking disc in the circumferential direction, and two supporting ends of the supporting assembly are respectively clamped with the annular track along the radial direction of the locking disc so as to lock the rotation of the wind wheel relative to the supporting assembly; the inner side and the outer side of the annular track are respectively provided with a locking structure, the two locking structures on the inner side and the outer side are positioned on the same radial extension line of the locking disc to form a locking structure group, and two supporting ends of the supporting assembly can be respectively matched and clamped with the two locking structures of the locking structure group along the radial direction of the locking disc; the inner side and the outer side of the annular rail are respectively provided with two annular ribs protruding out of the disc surface of the locking disc, and the two annular ribs have different radiuses so as to form the annular rail; the supporting component comprises two ejector rods which are hinged with each other, the end parts of the two ejector rods are respectively provided with a locking block, the locking structure is a clamping groove which is arranged on the annular rib and is matched and clamped with the locking blocks, one side of the clamping groove is provided with an opening, the openings of the two clamping grooves are opposite, and the two locking blocks slide in or slide out of the corresponding clamping grooves along the two openings respectively through opening and closing of the two ejector rods, so that the locking blocks are clamped with or released from the clamping grooves; or an annular rib protruding out of the locking disc is arranged on the locking disc to form the annular track; the supporting component comprises two ejector rods hinged to each other, the end portions of the two ejector rods are respectively provided with a locking block, the locking structure is arranged on the annular rib and is matched with a clamping groove of the clamping block, one side of the clamping groove is provided with an opening, the two openings of the clamping groove are opposite, the ejector rods are opened and closed through the two ejector rods, the two locking blocks are respectively arranged along the two openings, slide out of or slide into the corresponding clamping grooves, and therefore the clamping block and the clamping grooves are disengaged from each other.

2. The wind wheel locking device according to claim 1, wherein the surface of the locking block engaged with the locking groove is a plane.

3. The wind wheel locking device according to claim 2, wherein the width of the slot opening is greater than the width of the slot bottom.

4. The wind wheel locking device according to claim 1, wherein the number of locking structure sets is multiple.

5. The wind wheel locking device according to claim 1, wherein the support assembly further comprises a support cylinder, two of the ejector rods are hinged in the support cylinder, and two ends of the two ejector rods respectively extend out of two ends of the support cylinder.

6. The wind wheel locking device according to claim 5, wherein the support assembly further comprises a front chassis, the support canister being disposed on the front chassis.

7. A wind wheel, characterized in that it comprises a wind wheel body and a wind wheel locking device according to any of claims 1-6, the locking disc of the wind wheel locking device is connected with the wind wheel body.