Sectional type pull rod wind wheel of wind driven generator

Abstract

The utility model provides a wind wheel of a sectional type pull rod wind driven generator, which belongs to the technical field of wind power generation and comprises an adjusting mechanism, a plurality of blades I and a plurality of blades II, each first blade is connected with a first blade shaft, and one end of each first blade shaft is connected to the adjusting mechanism. The blades II are in one-to-one correspondence with the blades I; each second blade is connected with a second blade shaft, and one end of each second blade shaft is connected with the free end of the first blade shaft. Each second blade is parallel to the corresponding first blade; a pull rod connecting disc is arranged at the connecting position of the first blade shaft and the second blade shaft, and the pull rod connecting disc and the first blade shaft are relatively fixed in the axis direction. The pull rod connecting disc is connected with a front-back pull rod, and the other end of the front-back pull rod is connected to the adjusting mechanism. The blades are divided into the first blades and the second blades, the overall length of the blades can be reduced, the difficulty can be reduced in the blade machining and transporting process, and potential safety hazards can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of wind power generation, specifically relates to a sectional type pull rod wind turbine of wind driven generator. BACKGROUND

[0002] Wind power generation is to convert the kinetic energy of wind into electric energy, and the wind driven generator is driven by the rotation of blades to work, thereby realizing the purpose of power generation. In the prior art, each blade of the wind driven generator is integral, so the length of the blade is relatively long, the deformation of the blade is relatively large, and the safety hazard is relatively large. SUMMARY

[0003] The utility model embodiment provides a sectional type pull rod wind turbine of wind driven generator, aims at reducing the safety hazard of the integral blade in the prior art.

[0004] To achieve the above object, the utility model adopts the technical scheme of:

[0005] Provided is a sectional type pull rod wind turbine of wind driven generator, comprising:

[0006] An adjusting mechanism;

[0007] A plurality of blades one are uniformly arranged along the circumference of the adjusting mechanism; each blade one is connected with a blade shaft one, one end of the blade shaft one is connected to the adjusting mechanism, and the other end of the blade shaft one is a free end;

[0008] A plurality of blades two correspond to the blades one one by one; each blade two is connected with a blade shaft two, one end of the blade shaft two is connected with the free end of the blade shaft one; each blade two is arranged in parallel with the corresponding blade one;

[0009] The connecting position of the blade shaft one and the blade shaft two is provided with a pull rod connecting disc, the pull rod connecting disc is fixed in the axial direction relative to the blade shaft one; a front and rear pull rod is connected to the pull rod connecting disc, and the other end of the front and rear pull rod is connected to the adjusting mechanism.

[0010] In a possible implementation manner, the blade one and the blade two each have a large end and a small end, the small end of the blade one faces the adjusting mechanism, and the large end of the blade one faces outward; the large end of the blade two faces the blade one, and the small end of the blade two faces outward.

[0011] In a possible implementation manner, the free end of the blade shaft one is connected with a blade connecting shaft, and the blade connecting shaft is connected with the blade shaft two.

[0012] The bearing inner ring is sleeved on the blade connecting shaft, and the outer peripheral wall of the bearing inner ring is a convex circular arc surface; a bearing outer ring is sleeved on the bearing inner ring, and the bearing outer ring has a circular arc surface in rotational cooperation with the outer peripheral wall of the bearing inner ring, and the circular arc surface on the bearing outer ring is a concave surface; a bearing fixing female is further arranged on the blade connecting shaft, and the bearing fixing female is in contact with the bearing inner ring to axially limit the bearing inner ring; and the pull rod connecting disc is connected with the bearing outer ring.

[0013] In a possible implementation manner, the blade shaft one is connected with the blade connecting shaft through welding, and the blade shaft two is connected with the blade connecting shaft through welding.

[0014] In a possible implementation manner, the blade connecting shaft is in the form of a sleeve, and the blade shaft two is inserted into the blade connecting shaft.

[0015] In a possible implementation manner, a bearing sleeve is connected to the pull rod connecting disc, the bearing sleeve is sleeved on the bearing outer ring, and the top of the bearing sleeve is provided with a bearing baffle in contact with the end of the bearing outer ring.

[0016] In a possible implementation manner, a plurality of rotating shafts are arranged on the adjusting mechanism, the rotating shafts are uniformly arranged along the axial direction of the adjusting mechanism, and each rotating shaft is connected with one blade shaft one.

[0017] In a possible implementation manner, adjacent pull rod connecting discs are connected through an inter-blade pull rod, and the two ends of the inter-blade pull rod are connected with pull rod connecting plates two, which are fixed on the pull rod connecting discs.

[0018] In a possible implementation manner, the front and rear pull rods on each pull rod connecting disc are two, and the two front and rear pull rods are located on the two sides of the blade one respectively.

[0019] In a possible implementation manner, the positions where the two front and rear pull rods on each pull rod connecting disc are connected with the adjusting mechanism are located on the two sides of the rotating shafts respectively, so that an avoiding space for the swing of the blade one is formed between the two front and rear pull rods.

[0020] Compared with the prior art, the blade one is connected to the adjusting mechanism through the blade shaft one, and the blade one is connected with the adjusting mechanism through the pull rod connecting disc and the front and rear pull rods, so that the connection between the blade one and the adjusting mechanism can be improved; the blade is divided into the blade one and the blade two in the application, so that the length of the whole blade can be reduced, and the difficulty in the blade processing and transportation can be reduced; through the split type arrangement, the stress on the blade can be improved, and the deformation amount of the blade can be reduced, so that the above-mentioned arrangement of the application can reduce the safety hazards. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A schematic view of a segmented pull rod wind turbine of the wind-driven generator is provided in the embodiment of the present application;

[0022] Figure 2 A schematic view of the adjusting mechanism part of the segmented pull rod wind turbine of the wind-driven generator is provided in the embodiment of the present application;

[0023] Figure 3 A schematic view of the blade two part of the segmented pull rod wind turbine of the wind-driven generator is provided in the embodiment of the present application;

[0024] Figure 4 A sectional view of the connecting position of the blade shaft one and the blade shaft two of the segmented pull rod wind turbine of the wind-driven generator is provided in the embodiment of the present application.

[0025] The figure mark explanation: 1, adjusting mechanism; 11, pull rod connecting plate one; 2, blade one; 21, blade shaft one; 3, blade two; 31, blade shaft two; 4, pull rod connecting disc; 41, bearing outer sleeve; 42, bearing baffle ring; 5, front and rear pull rod; 6, blade connecting shaft; 61, bearing inner ring; 62, bearing outer ring; 63, bearing fixed female; 7, rotating shaft; 8, nut; 9, inter-blade pull rod; 91, pull rod connecting plate two. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical schemes and beneficial effects to be solved by the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0027] Please refer to Figures 1 to 4 , now a segmented pull rod wind turbine of the present application will be described. The segmented pull rod wind turbine comprises an adjusting mechanism 1, a plurality of blade ones 2 and a plurality of blade twos 3; the plurality of blade ones 2 are evenly arranged along the circumference of the adjusting mechanism 1; each blade one 2 is connected with a blade shaft one 21, one end of the blade shaft one 21 is connected to the adjusting mechanism 1, and the other end of the blade shaft one 21 is a free end; the plurality of blade twos 3 correspond to the blade ones 2 one by one; each blade two 3 is connected with a blade shaft two 31, one end of the blade shaft two 31 is connected to the free end of the blade shaft one 21; each blade two 3 is arranged in parallel with the corresponding blade one 2; wherein, the connecting position of the blade shaft one 21 and the blade shaft two 31 is provided with a pull rod connecting disc 4, the pull rod connecting disc 4 is fixed in the axial direction relative to the blade shaft one 21; the pull rod connecting disc 4 is connected with a front and rear pull rod 5, the other end of the front and rear pull rod 5 is connected to the adjusting mechanism 1.

[0028] Compared with the prior art, the blade one 2 is connected to the adjusting mechanism 1 through the blade shaft one 21, and the blade one 2 is connected to the adjusting mechanism 1 through the pull rod connecting disc 4 and the front and rear pull rods 5, so that the connection between the blade one 2 and the adjusting mechanism 1 can be improved; the blade one 2 and the blade two 3 are divided in the application, so that the length of the whole blade can be reduced, and the difficulty in the blade processing and transportation can be reduced; through the split type setting, the stress of the blade can be improved, and the deformation amount of the blade can be reduced, so that the above-mentioned setting of the application can reduce the safety hidden danger.

[0029] In some embodiments, as shown in Figures 1 to 4 The small end of the blade one 2 faces the adjusting mechanism 1, and the large end of the blade one 2 faces outward; the large end of the blade two 3 faces the blade one 2, and the small end of the blade two 3 faces outward.

[0030] It should be noted that the blade one 2 and the blade two 3 are arranged in parallel, so that the blade one 2 and the blade two 3 can drive the adjusting mechanism 1 to rotate under the action of wind force; the blade one 2 and the blade two 3 are arranged in the form of large end and small end, so that production and transportation are facilitated.

[0031] In some embodiments, as shown in Figures 1 to 4 The free end of the blade shaft one 21 is connected with the blade connecting shaft 6, and the blade connecting shaft 6 is connected with the blade shaft two 31; the bearing inner ring 61 is sleeved on the blade connecting shaft 6, and the outer peripheral wall of the bearing inner ring 61 is a convex circular surface; the bearing outer ring 62 is sleeved on the bearing inner ring 61, and the bearing outer ring 62 has a circular surface that is in rotational cooperation with the outer peripheral wall of the bearing inner ring 61, and the circular surface of the bearing outer ring 62 is a concave surface; the bearing fixing female 63 is further arranged on the blade connecting shaft 6, and the bearing fixing female 63 is in contact with the bearing inner ring 61 to axially limit the bearing inner ring 61; the pull rod connecting disc 4 is connected with the bearing outer ring 62; the adjusting mechanism 1 is provided with a plurality of rotating shafts 7, the plurality of rotating shafts 7 are uniformly arranged along the axial direction of the adjusting mechanism 1, each rotating shaft 7 is connected with one of the blade shafts one 21, a flange plate is welded on the blade shaft one 21, a flange plate is also welded on the rotating shaft 7, and the blade shaft one 21 and the rotating shaft 7 are connected through the flanges.

[0032] It should be noted that when the angle of the blade needs to be adjusted, the rotating shaft 7 rotates relative to the adjusting mechanism 1, thereby driving the blade shaft one 21 and the blade shaft two 31 to rotate, and the angle of the blade is adjusted. In the process of adjusting the angle of the blade, the pull rod connecting disc 4 is connected with the bearing outer ring 62, and the pull rod connecting disc 4 is connected with the adjusting mechanism 1 through the front and rear pull rods 5, so that the pull rod connecting disc 4 can remain relatively fixed, the first rotating shaft 7 can rotate relative to the pull rod connecting disc 4, and the angle of the blade can be conveniently adjusted.

[0033] Exemplarily, the bearing inner ring 61 and the bearing outer ring 62 are matched through a circular arc surface, and the bearing inner ring 61 and the bearing outer ring 62 can be limited in the axial direction, so as to avoid the axial displacement of the bearing outer ring 62 and the bearing inner ring 61; the vane connecting shaft 6 penetrates through the bearing fixing mother 63, and the outer peripheral wall of the penetrating end of the vane connecting shaft 6 is provided with a threaded hole, and a positioning bolt is arranged in the threaded hole, and the positioning bolt can play a role of limiting the bearing fixing mother 63 in the axial direction.

[0034] Exemplarily, the front and rear pull rods 5 on each pull rod connecting disc 4 are two, and the two front and rear pull rods 5 are located on the two sides of the vane one 2; wherein, the positions where the two front and rear pull rods 5 on each pull rod connecting disc 4 are connected with the adjusting mechanism 1 are located on the two sides of the rotating shaft 7, so as to form a avoiding space between the two front and rear pull rods 5 for the swing of the vane one 2; by arranging the two front and rear pull rods 5 on the two sides of the vane one 2 and forming the avoiding space between the two front and rear pull rods 5, the situation that the vane one 2 collides with the front and rear pull rods 5 can be avoided in the process of adjusting the angle of the vane one 2.

[0035] Exemplarily, the adjusting mechanism 1 is fixedly provided with a pull rod connecting plate one 11, and the pull rod connecting plate one 11 corresponds to the front and rear pull rods 5 one by one; the two ends of the front and rear pull rods 5 are provided with external threads, the front and rear pull rods 5 are perpendicular to the pull rod connecting plate one 11, the pull rod connecting plate one 11 is provided with a through hole for the front and rear pull rods 5 to penetrate through, and after the front and rear pull rods 5 penetrate through the pull rod connecting plate one 11, the front and rear pull rods 5 are fixed to the pull rod connecting plate one 11 through the nuts 8. The other end of the front and rear pull rods 5 penetrates through the pull rod connecting disc 4, and after the front and rear pull rods 5 penetrate through the pull rod connecting disc 4, the front and rear pull rods 5 are fixed to the pull rod connecting disc 4 through the nuts 8.

[0036] Exemplarily, the adjusting mechanism 1 is provided with a driving structure for driving the rotating shaft 7 to rotate, and the driving structure (which can refer to the Chinese invention patent with the application number 201510818125.X) is a prior art, which will not be described here.

[0037] In some embodiments, as shown in Figures 1 to 4 The adjacent pull rod connecting discs 4 are connected through the inter-vane pull rods 9, and the two ends of the inter-vane pull rods 9 are connected with the pull rod connecting plates two 91, and the pull rod connecting plates two 91 are fixed on the pull rod connecting discs 4.

[0038] It should be noted that the inter-vane pull rods 9 are perpendicular to the pull rod connecting plates two 91, the two ends of the inter-vane pull rods 9 are provided with external threads, and the pull rod connecting plates two 91 are provided with through holes for the inter-vane pull rods 9 to penetrate through; after the inter-vane pull rods 9 penetrate through the pull rod connecting plates two 91, the inter-vane pull rods 9 are fixed to the pull rod connecting plates two 91 through the nuts 8.

[0039] In some embodiments, as shown in Figures 1 to 4As shown, blade shaft 21 is connected to blade connecting shaft 6 by welding, and blade shaft 31 is connected to blade connecting shaft 6 by welding; blade connecting shaft 6 is in the form of a sleeve, and blade shaft 31 is inserted into blade connecting shaft 6.

[0040] It should be noted that inserting the blade shaft 21 into the blade connecting shaft 6 and welding them together can make the blade shaft 1 21 and the blade shaft 21 form a whole. During the rotation of the blade shaft 1 21, the blade shaft 21 can be driven to rotate together.

[0041] In some embodiments, such as Figures 1 to 4 As shown, a bearing outer sleeve 41 is connected to the tie rod connecting plate 4, and the bearing outer sleeve 41 is fitted onto the bearing outer ring 62; the top of the bearing outer sleeve 41 has a bearing retaining ring 42 that contacts the end of the bearing outer ring 62.

[0042] It should be noted that after the tie rod connecting plate 4 is connected to the adjusting mechanism 1 via the front and rear tie rods 5, the bearing retaining ring 42 on the bearing outer sleeve 41 can abut against the bearing outer ring 62. Through the relative rotation of the bearing inner ring 61 and the bearing outer ring 62, the blade shaft 21 can rotate and cooperate with the tie rod connecting plate 4. Therefore, the tie rod connecting plate 4 will not affect the rotation of the blade shaft 21, which is convenient for adjusting the angle of the blade 2.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A segmented pull rod wind turbine rotor, characterized in that, The utility model relates to a kind of adjusting mechanism and the blade structure of adjusting mechanism, comprising: Adjusting mechanism; Several blades one, evenly arranged along the circumference of the adjusting mechanism; Each of the blade one is connected with blade shaft one, one end of the blade shaft one is connected on the adjusting mechanism, the other end of the blade shaft one is free end; Several blades two, corresponding to the blade one one by one;Each of the blade two is connected with blade shaft two, one end of the blade shaft two is connected with the free end of the blade shaft one;Each of the blade two is arranged in parallel with the corresponding blade one; Wherein, the connecting position of the blade shaft one and the blade shaft two is equipped with pull rod connecting disc, the pull rod connecting disc is fixed in axial direction with the blade shaft one;Front and rear pull rod is connected on the pull rod connecting disc, the other end of the front and rear pull rod is connected on the adjusting mechanism.

2. A segmented pull rod wind turbine rotor as claimed in claim 1, wherein, The blade one and the blade two all have large end and small end, the small end of the blade one is towards the adjusting mechanism, and the large end of the blade one is outward;The large end of the blade two is towards the blade one, and the small end of the blade two is outward.

3. A segmented pull rod wind turbine rotor as claimed in claim 1, wherein, The free end of the blade shaft one is connected with blade connecting shaft, and the blade connecting shaft is connected with the blade shaft two; Wherein, bearing inner ring is sleeved on the blade connecting shaft, and the outer peripheral wall of the bearing inner ring is outwardly convex arc surface;Bearing outer ring is sleeved on the bearing inner ring, and the bearing outer ring has arc surface that is rotatably matched with the outer peripheral wall of the bearing inner ring, and the arc surface on the bearing outer ring is concave;Bearing fixing female is further provided on the blade connecting shaft, and the bearing fixing female is in contact with the bearing inner ring to axially limit the bearing inner ring;The pull rod connecting disc is connected with the bearing outer ring.

4. A segmented pull rod wind turbine rotor as claimed in claim 3, wherein, The blade shaft one and the blade connecting shaft are connected by welding, and the blade shaft two and the blade connecting shaft are connected by welding.

5. A segmented puller wind turbine rotor as claimed in claim 4, wherein, The blade connecting shaft is in the form of sleeve, and the blade shaft two is inserted into the blade connecting shaft.

6. A segmented pull rod wind turbine rotor as claimed in claim 3, wherein, Bearing sleeve is connected on the pull rod connecting disc, and the bearing sleeve is sleeved on the bearing outer ring;The top of the bearing sleeve has bearing baffle ring that is in contact with the end of the bearing outer ring.

7. A segmented pull rod wind turbine rotor as claimed in claim 1, wherein, The adjusting mechanism is provided with a plurality of rotating shafts, and the rotating shafts are evenly arranged along the axial direction of the adjusting mechanism, and each rotating shaft is connected with one of the blade shafts.

8. A segmented pull rod wind turbine rotor as claimed in claim 1, wherein, Adjacent pull rod connecting discs are connected by inter-blade pull rods, and both ends of the inter-blade pull rods are connected with pull rod connecting plates two, which are fixed on the pull rod connecting discs.

9. A segmented pull rod wind turbine rotor as claimed in claim 7, wherein, The front and rear pull rods on each pull rod connecting disc are two, and the two front and rear pull rods are located on both sides of the blade one respectively; Wherein, the positions where the two front and rear pull rods on each pull rod connecting disc are connected with the adjusting mechanism are located on both sides of the rotating shafts respectively, so as to form a avoiding space for the swing of the blade one between the two front and rear pull rods.

Images