Distortion-resistant yaw assembly and equipment

Abstract

The utility model relates to a distortion-resistant yaw assembly and equipment. The distortion-resistant yaw assembly comprises a fixing frame and a rotating frame rotationally arranged on one side of the fixing frame. The driving part is hinged between the fixed frame and the rotating frame; the driving part comprises a driving rod and a swinging arm which are hinged; a hinge shaft is arranged at the root of the swinging arm; one end of the hinge shaft is connected with a swinging body; a plurality of meshing pieces are evenly distributed on the end face of the swing body. A gear ring is arranged on the inner side wall of the fixing frame or the rotating frame, and the driving rod and the root of the swing arm are hinged to the rotating frame or the fixing frame. The meshing piece is used for being meshed with the gear ring. The driving rod drives the swinging body to swing; the device is reasonable in design, compact in structure and convenient to use.

Description

TECHNICAL FIELD

[0001] The utility model relates to a twist -resistant yawing assembly and equipment. BACKGROUND

[0002] The yawing system is the core component of the wind driven generator, which is located between the cabin and the tower drum, and is used for adjusting the cabin position according to the wind direction, and the existing yawing is generally gear ring yawing or connecting rod yawing, the gear ring yawing has the problems of gear bending, loud noise and large impact force, and the connecting rod yawing cannot realize 360 degree yawing, occupies the space in the tower drum completely, and the hydraulic system is complex, therefore, the prior art CN117846868A is developed, but it needs to use the space outside the tower drum, is inconvenient to transport, occupies large area, and needs to be matched with large size bearings, how to improve a kind of small area, convenient transportation, realize continuous yawing, avoid jam, reduce frequent start-stop, reduce the technical problem of work precision requirement becomes the technical problem that urgently needs to be solved. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem that the utility model provides a kind of twist -resistant yawing assembly and equipment.

[0004] To solve the above problems, the technical scheme adopted by the utility model is:

[0005] In order to realize continuous driving, save tower body hollow, reduce impact force, a kind of twist -resistant yawing assembly, including fixed frame and rotating frame rotatably arranged on one side of fixed frame;

[0006] The driving part is hingedly connected between the fixed frame and the rotating frame;

[0007] The driving part includes a driving rod and a swing arm hingedly connected;

[0008] A hinged shaft is arranged at the root of the swing arm;

[0009] A swing body is connected to one end of the hinged shaft; A meshing piece is arranged on the end face of the swing body;

[0010] A gear ring is arranged on the inner wall of the fixed frame or the rotating frame, and the roots of the driving rod and the swing arm are hingedly connected to the rotating frame or the fixed frame respectively;

[0011] The meshing piece is used for meshing with the gear ring;

[0012] The driving rod drives the swing body to swing.

[0013] As a further improvement of the above technical scheme:

[0014] In order to realize hinged connection and flexible swing, a first hinged seat and a second hinged seat are arranged on the rotating frame or the fixed frame;

[0015] The driving rod root is hinged on the first hinge seat, and the swing arm root is hinged on the second hinge seat.

[0016] In order to realize the swing return and the forward driving, a clutch is arranged between the swing arm and the hinge shaft.

[0017] The clutch comprises a clutch wheel arranged on the hinge shaft, and a clutch fork movably arranged on the swing arm.

[0018] The clutch fork is close to or away from the clutch wheel. The clutch wheel is a ratchet wheel or a gear wheel. The top of the gear wheel is chamfered.

[0019] In order to realize the positioning limitation of five degrees of freedom, only the rotation in the Z-axis direction is provided with a positioning step on the fixed frame, and the end surface of the rotating frame is provided with a stop opening matched with the positioning step.

[0020] In order to realize the static locking of the yaw state without yawing, a brake is arranged between the fixed frame and the positioning step.

[0021] In order to realize the smooth driving, at least two driving rods are distributed on the circumference; the at least two driving rods comprise a driving rod A and a driving rod B.

[0022] When the driving rod A returns, the clutch corresponding to the driving rod A is separated, and the clutch corresponding to the driving rod B is engaged.

[0023] When the driving rod A advances, the clutch corresponding to the driving rod A is engaged, and the clutch corresponding to the driving rod B is separated.

[0024] In order to realize the thrust balance, one or more than two driving rods and / or swing arms are arranged at each position.

[0025] In order to realize the continuous meshing, the meshing part comprises a plurality of indexing columns or meshing gears arranged on the end surface of the moving body; the swing amplitude of the swing body in one forward stroke is such that the gear ring at least walks one pitch until the teeth of the corresponding indexing column or meshing gear and the gear ring are separated.

[0026] When the swing amplitude of the swing body in one return stroke is such that the indexing column or meshing gear and the gear ring are in the meshing state.

[0027] As a whole protection, an apparatus comprises a tower body, a cabin body, and the yawing assembly arranged between the tower body and the cabin body.

[0028] The rotating frame is arranged on the tower body.

[0029] The fixed frame is arranged on the cabin body.

[0030] This utility model is reasonably designed, low in cost, sturdy and durable, safe and reliable, simple to operate, time-saving, labor-saving, cost-effective, compact in structure, and easy to use. Through the cooperation of the drive rod, the swing body, and the indexing column, this utility model solves the problems of broken gear teeth, loud impact noise, and difficulty in replacement of gear rings. The indexing column, compared to gears, has the advantage of preventing the pinion from continuing to work when a tooth breaks, and also solves problems such as skewed output force and easy bearing wear. If the meshing parts are meshing gears, compared to the traditional simple pinion drive, when the drive rod uses a hydraulic cylinder, its flexibility increases the pinion's impact resistance, increases its flexibility, avoids tooth breakage, and reduces impact noise when the pinion contacts the gear ring.

[0031] This invention enables continuous drive, solving the problem that push rod drives cannot drive continuously. Its single drive rod has a short drive stroke and a large output force. The output force is initially large, then medium and then large, which reduces the buffering force, makes the operation smooth, realizes relay drive, and prevents the drive force from being biased. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure used in Embodiment 1 of this utility model.

[0033] Figure 2 This is an exploded structural diagram of Embodiment 1 of this utility model.

[0034] Figure 3 This is a schematic diagram of the drive unit structure of Embodiment 1 of this utility model.

[0035] Figure 4 This is a schematic diagram of a preferred structure of Embodiment 1 of this utility model.

[0036] Figure 5 This is a schematic diagram of the preferred structure of the drive unit in Embodiment 2 of this utility model.

[0037] Figure 6 This is a schematic diagram of the preferred structure of the drive unit in Embodiment 2 of this utility model.

[0038] Figure 7 This is an exploded preferred structural diagram of Embodiment 2 of this utility model.

[0039] Figure 8 This is a schematic diagram of a preferred structure of Embodiment 3 of this utility model.

[0040] Figure 9 This is an exploded preferred structural diagram of Embodiment 3 of this utility model.

[0041] Wherein: 1, tower cylinder; 2, cabin body; 3, drive part; 4, brake part; 5, fixed frame; 6, positioning step; 7, gear ring; 8, rotating frame; 9, first hinged seat; 10, second hinged seat; 11, drive rod; 12, swing arm; 13, swing body; 14, index column; 15, clutch wheel; 16, clutch fork; 17, hinged shaft. DETAILED DESCRIPTION

[0042] As Figures 1-9 shown, the anti-torsion yawing assembly of the embodiment comprises a fixed frame 5 and a rotating frame 8 rotatably arranged on one side of the fixed frame 5; which can be a sleeve structure or a box structure or a frame structure, etc.

[0043] The drive part 3 is hingedly connected between the fixed frame 5 and the rotating frame 8; so as to realize rotating yawing.

[0044] As an improvement, the present patent ingeniously combines gear meshing with oil cylinder driving, the drive part 3 comprises a hingedly connected drive rod 11 and a swing arm 12; which overcomes the problems of gear tooth folding and noise, and at the same time solves the shortcomings of push rod driving that cannot realize continuous rotation;

[0045] As a preferred embodiment, in order to increase the stroke, the swing arm 12 has a long slot at the head end, and the drive rod 11 has a rotating shaft; the rotating shaft is in the long slot, so as to realize the conversion of the linear motion of the drive rod into the swing motion of the swing arm 12.

[0046] The hinged shaft 17 is arranged at the root of the swing arm 12; which is vertically arranged.

[0047] The swing body 13 is connected to one end of the hinged shaft 17; the end face of the swing body 13 has a meshing piece; the meshing piece comprises a plurality of index columns 14 or meshing gears evenly arranged on the end face of the swing body 13; when the index columns are arranged to match the gear ring pitch, compared with the pinion, the processing is convenient, only the index columns are needed, the strength and rigidity are lower than those of the gear ring, so as to maintain the service life of the gear ring, the processing difficulty is low, the flexible sleeve can be added to the index columns to reduce noise and reduce the collision impulse when in contact. The meshing gear is not drawn.

[0048] The preferred structure is as Figures 1-4 shown, as an extension, the gear ring 7 is arranged on the inner side wall of the fixed frame 5 or the rotating frame 8, and the roots of the drive rod 11 and the swing arm 12 are respectively hingedly connected to the rotating frame 8 or the fixed frame 5;

[0049] The meshing piece is used to mesh with the gear ring 7; so as to realize the rotation of the drive.

[0050] The drive rod 11 drives the swing body 13 to swing, the drive rod 11 can define the forward stroke as the extension of the drive, and define the return stroke as the shortening of the drive, and vice versa.

[0051] The first hinged seat 9 and the second hinged seat 10 are arranged on the rotating frame 8 or the fixed frame 5 to facilitate swinging;

[0052] The driving rod 11 is hinged at the root on the first hinged seat 9, and the swinging arm 12 is hinged at the root on the second hinged seat 10.

[0053] In order to realize the forward driving and return reset, a clutch is arranged between the swinging arm 12 and the hinged shaft 17, which can be a clutch with overtravel and automatically slip when overloaded.

[0054] The clutch includes a clutch wheel 15 arranged on the hinged shaft 17, and a clutch yoke 16 is movably arranged on the swinging arm 12, which can be driven by electromagnetic drive, hydraulic drive or mechanical drive and the like conventional ways to realize that the clutch yoke 16 is close to or away from the clutch wheel 15.

[0055] The fixed frame 5 is provided with a positioning step 6, and the end surface of the rotating frame 8 has a stop opening matched with the positioning step 6.

[0056] A brake 4 is arranged between the fixed frame 5 and the positioning step 6, which can be an oil cylinder or an electric push rod, etc., to realize the integration and locking.

[0057] At least two driving rods 11 are distributed on the circumference to realize continuous driving. Figures 1-4 The at least two driving rods 11 include a driving rod A and a driving rod B.

[0058] When the driving rod A returns, the clutch corresponding to the driving rod A is separated to realize the reset of the free engagement with the gear ring, and the clutch corresponding to the driving rod B is engaged to prevent the cabin from rotating automatically. Of course, the driving rod B can continue to drive forward.

[0059] When the driving rod A advances, the clutch corresponding to the driving rod A is engaged to realize the yaw driving rotation, and the clutch corresponding to the driving rod B is separated and returns.

[0060] One or more than two driving rods A and driving rods B are preferred, so that when one driving rod A or driving rod B is damaged, the clutch is loosened, and the other driving rods can continue to drive.

[0061] One or more than two driving rods 11 and / or swinging arms 12 are arranged at each position to realize that the thrust will not be deflected and abraded, thereby ensuring the durability of the bearing.

[0062] The swinging range of the swinging body 13 once advances is such that the gear ring 7 at least walks one pitch until the corresponding indexing column 14 is separated from the gear ring 7, and at the same time, the subsequent indexing column can be entered to realize continuous driving. Of course, other stroke distances can also be used.

[0063] When the swing body 13 is once returned to the swing amplitude, the indexing column 14 is in meshing state with the gear ring 7, and is ready for the second forward driving to drive the yaw. The meshing gear is also the same.

[0064] As the preferred working principle of the utility model, when yawing is needed, the brake part 4 is loosened, the driving rod A is started to drive forward, the corresponding swing arm A is swung, the indexing column 14 is meshed with the gear ring 7 through the swing body 13 and the hinged shaft 17, the gear ring 7 is driven to rotate and yaw, at this time, the clutch wheel 15 at A is engaged with the clutch fork 16; when the driving rod A reaches the end point or is close to the end point, the clutch wheel 15 at B is started to engage with the clutch fork 16, the driving rod B and the swing arm B continue to drive forward; when the driving rod A reaches the end point, the clutch wheel 15 at A is loosened, the driving rod A is started to drive backward, the corresponding swing arm A is swung reversely, the swing body 13 is idled, the meshing indexing column 14 is rotated, the indexing column 14 is reversely rotated, and is ready for driving forward again, so that the yawing action of the tower body 1 and the cabin body part 2 is realized. The positioning step 6 is used for limiting, and of course, the rotary bearing can be arranged between the rotating frame 8 and the fixed frame 5. The first hinged seat 9 and the second hinged seat 10 are used as rotating supports.

[0065] The device of the embodiment comprises the tower body 1, the cabin body part 2 and the above-mentioned yawing assembly arranged between the tower body 1 and the cabin body part 2.

[0066] The rotating frame 8 is arranged on the tower body 1.

[0067] The fixed frame 5 is arranged on the cabin body part 2.

[0068] As Figures 5-7 Compared with the embodiment 1, the improvement of the gear ring of the embodiment is that the external gear ring is adopted.

[0069] As Figure 8 , Figure 9 Compared with the embodiment 2, the improvement of the gear ring of the embodiment is that the structure of the rotating frame and the fixed frame is deformed.

[0070] As Figures 1-9 After the wind turbine main frame is yawed to the working position, six groups of oil cylinders can be used for the driving rod, of course, other numbers can also be adjusted according to the actual situation, the oil cylinder is locked at the position of the oil cylinder piston rod through the hydraulic lock of the hydraulic system, the brake adopts six or other numbers of driving clamp assemblies, and is also locked at the same time, so that the correct wind-approaching position is ensured during the wind turbine power generation.

[0071] The caliper assembly comprises a plunger cylinder arranged on the rotating frame 8 or the fixed frame 5, a locking plate A connected with the plunger cylinder, and a locking plate B arranged on the fixed frame 5 or the rotating frame 8, the combination surfaces of the locking plate A and the locking plate B are matched and pressed by convex platforms, and the convex platforms are matched and pressed, so that the caliper assembly is fixedly connected with the sliding bearing.

[0072] As the arrangement is preferred, as Figures 1-9 The driving rod adopts the oil cylinder as the power, the oil cylinder drives the yaw movement scheme of the fan, the oil cylinder has preferably 6 installation positions in the circumferential direction, one oil cylinder is installed at each installation position as the driving rod, the piston rod of the 1# oil cylinder is at the zero stroke position, the piston rod of the 6# oil cylinder is at the maximum stroke position, the piston rods of the 2#-5# oil cylinders are respectively at the 2 / 6-5 / 6 stroke positions, the piston rods of the 1#-5# oil cylinders are extended, the 6# oil cylinder is reset to the zero stroke position, and the continuous operation state that one oil cylinder is reset and five oil cylinders work is realized, that is, the continuous yaw movement of the fan main frame is realized.

[0073] When the 6# oil cylinder needs to be reset, the clutch is separated, so that the indexing column is in a free state, the piston rod of the 6# oil cylinder is retracted, the tooth engagement mechanism is engaged, and the 6# oil cylinder can be normally driven.

[0074] The present application fully describes the present application in order to more clearly disclose the present application, and the prior art is not listed one by one.

[0075] Finally, it should be pointed out that: the above examples are only used to illustrate the technical scheme of the present application, and are not limited to the prior art; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical scheme recorded in the foregoing examples, or make equivalent replacement for part of the technical features; as a person skilled in the art, it is obvious to combine the technical schemes of the present application. And these modifications or replacements do not make the essence of the corresponding technical scheme deviate from the spirit and scope of the technical scheme of the present application. The technical content not described in the present application is known technology.

Claims

1. A torsionally stiff yaw assembly characterized by: The device comprises a fixed frame (5) and a rotating frame (8) arranged on one side of the fixed frame (5); The driving part (3) is hingedly connected between the fixed frame (5) and the rotating frame (8); The driving part (3) comprises a driving rod (11) and a swing arm (12) hingedly connected; A hinged shaft (17) is arranged at the root of the swing arm (12); A swing body (13) is connected to one end of the hinged shaft (17); a meshing part is arranged on the end face of the swing body (13); A gear ring (7) is arranged on the inner side wall of the fixed frame (5) or the rotating frame (8), and the root of the driving rod (11) and the swing arm (12) is respectively hingedly connected to the rotating frame (8) or the fixed frame (5); The meshing part is used for meshing with the gear ring (7); The driving rod (11) drives the swing body (13) to swing.

2. The torsion-resistant yaw assembly of claim 1, wherein: A first hinged seat (9) and a second hinged seat (10) are arranged on the rotating frame (8) or the fixed frame (5); The meshing part comprises a plurality of index columns (14) or meshing gears arranged on the end face of the swing body (13); The root of the driving rod (11) is hingedly connected to the first hinged seat (9), and the root of the swing arm (12) is hingedly connected to the second hinged seat (10).

3. The torsion-resistant yaw assembly of claim 1, wherein: A clutch is arranged between the swing arm (12) and the hinged shaft (17).

4. The torsion-resistant yaw assembly of claim 3, wherein: The clutch comprises a clutch wheel (15) arranged on the hinged shaft (17), and a clutch yoke (16) movably arranged on the swing arm (12); The clutch yoke (16) is close to or away from the clutch wheel (15).

5. The torsion-resistant yaw assembly of claim 1, wherein: A positioning step (6) is arranged on the fixed frame (5), and the end face of the rotating frame (8) has a stop opening matched with the positioning step (6).

6. The torsion-resistant yaw assembly of claim 1, wherein: A brake part (4) is arranged between the fixed frame (5) and the positioning step (6); The brake part (4) adopts a caliper assembly; The caliper assembly comprises a plunger cylinder arranged on the rotating frame (8) or the fixed frame (5), a locking plate A connected with the plunger cylinder, and a locking plate B arranged on the fixed frame (5) or the rotating frame (8); The combination surface of the locking plate A and the combination surface of the locking plate B adopt a convex platform matched and pressed.

7. The torsion-resistant yaw assembly of claim 3, wherein: At least two driving rods (11) are distributed on the circumference; the at least two driving rods (11) comprise a driving rod A and a driving rod B; When the driving rod A returns, the clutch corresponding to the driving rod A is separated, and the clutch corresponding to the driving rod B is engaged; When the driving rod A advances, the clutch corresponding to the driving rod A is engaged, and the clutch corresponding to the driving rod B is separated.

8. The torsion-resistant yaw assembly of claim 7, wherein: Each driving rod (11) and / or swing arm (12) is at least one.

9. The torsion-resistant yaw assembly of claim 1, wherein: The swing amplitude of the swing body (13) in one forward stroke is such that the gear ring (7) at least walks one pitch until the teeth of the corresponding index column (14) or meshing gear are separated from the gear ring (7); When the swing amplitude of the swing body (13) in one return stroke is such that the index column (14) or meshing gear is in meshing state with the gear ring (7).

10. An apparatus, comprising: The device comprises a tower cylinder body (1), a cabin body part (2), and a yawing assembly as claimed in claim 1 arranged between the tower cylinder body (1) and the cabin body part (2); The rotating frame (8) is arranged on the tower cylinder body (1); The fixed frame (5) is arranged on the cabin body part (2).

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