Novel hub spindle connecting structure

Abstract

The utility model discloses a novel hub main shaft connecting structure, which relates to the technical field of hub main shaft connection, and comprises a hub, and a main shaft body penetrates through the central position of the hub; the polygonal insertion ring is inserted between the hub and the main shaft body, so that the transmission between the main shaft body and the hub is realized; the clamping device is adapted to be of a structure for clamping and fixing the hub; the number of the auxiliary assemblies is multiple, and the two ends of the auxiliary assemblies are fixedly connected with the hub and the main shaft body correspondingly; synchronous rotation of the main shaft body and the hub is achieved through the arrangement of the polygonal insertion ring, torsion generated when the main shaft body and the hub rotate is shared, and damage to the clamping device due to the fact that the torsion between the main shaft body and the hub is too large is avoided; and through cooperative arrangement of the first threaded rod and the second threaded rod, the main shaft body and the hub can be temporarily connected and fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of hub-spindle connection, in particular to a novel hub-spindle connection structure. Background Art

[0002] The hub and main shaft of a traditional wind turbine are connected by a circle of bolts. The flange surfaces are compressed by pre-tightening bolts, and torque is transmitted by friction between the two flange surfaces. Due to the low friction coefficient between steel and ductile iron, the bolt pre-tightening force is very large. In addition, the bolts have to withstand the bending moment transmitted by the impeller. The working conditions of the bolts are very harsh, which causes the bolts to completely break or break under the action of shear force over a long period of time, causing the hub and main shaft to immediately stop transmission.

[0003] Therefore, it is necessary to invent a new hub-spindle connection structure to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide a novel hub-spindle connection structure to solve the problem proposed in the above background technology that the bolts have to withstand the bending moment transmitted by the impeller, and the working conditions of the bolts are very harsh, which causes the bolts to completely break or break under the action of shear force over a long period of time, causing the hub and the spindle to immediately stop transmission.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a novel hub-spindle connection structure, comprising:

[0006] A wheel hub, wherein the center of the wheel hub has a main shaft passing through it;

[0007] A polygonal insert ring is inserted between the wheel hub and the main shaft body to realize transmission between the main shaft body and the wheel hub;

[0008] A clamping device, the clamping device being adapted to be a structure for clamping and fixing the wheel hub;

[0009] Auxiliary components, multiple auxiliary components are provided, and both ends of the auxiliary components are fixedly connected to the wheel hub and the main shaft body respectively.

[0010] Optionally, a polygonal channel adapted to the polygonal insert ring is provided at the center of the hub, and a plurality of first receiving through holes in an annular array are provided on the hub.

[0011] Optionally, a polygonal plug compatible with the polygonal plug ring is fixedly installed on the end of the main shaft body, and a threaded head passing through the clamping device is fixedly installed on the end of the polygonal plug, and a first nut that limits the clamping device is screwed on the outer side of the threaded head.

[0012] Optionally, the clamping device includes:

[0013] An outer ring plate, fixed to the end of the polygonal insert ring and in contact with the wheel hub;

[0014] An inner ring plate, fixed to the outside of the main shaft body and in contact with the wheel hub;

[0015] The second receiving through holes are provided in plurality and are opened on the outer ring plate and the inner ring plate, and correspond one-to-one to the first receiving through holes.

[0016] Optionally, the clamping device further includes:

[0017] a bolt passing through the first receiving through-hole and the second receiving through-hole;

[0018] A second nut is fixed on the outside of the bolt and positions the outer ring plate and the inner ring plate.

[0019] Optionally, the auxiliary components include:

[0020] A mounting ring, the mounting ring being fixed on the outside of the spindle shaft;

[0021] A plurality of first threaded rods are provided and fixed on the outside of the mounting ring in an annular array.

[0022] Optionally, the auxiliary component further includes:

[0023] a second threaded rod, wherein a plurality of the second threaded rods are provided and fixed to the hub in an annular array and correspond one-to-one to the first threaded rods;

[0024] The threaded sleeve is sleeved on the ends of the first threaded rod and the second threaded rod.

[0025] The technical effects and advantages of this utility model are:

[0026] 1. The utility model realizes the synchronous rotation of the main shaft body and the wheel hub by setting the polygonal insert ring, so that the torque of the main shaft body and the wheel hub during rotation is shared, avoiding damage to the clamping device caused by excessive torque between the main shaft body and the wheel hub.

[0027] 2. The utility model can temporarily connect and fix the main shaft body and the wheel hub through the cooperation of the first threaded rod and the second threaded rod, so that the main shaft body and the wheel hub can still be used for a distance when the clamping device is damaged, leaving enough time for maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the utility model;

[0029] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0030] Figure 3 For this utility model Figure 2 A schematic diagram of the structure at center A;

[0031] Figure 4 This is a schematic diagram of the hub structure of the utility model;

[0032] Figure 5 This is a schematic diagram of the main shaft structure of the utility model.

[0033] In the figure: 100, wheel hub; 110, polygonal channel; 120, first receiving through hole;

[0034] 200, spindle shaft; 210, polygonal plug; 220, threaded head; 230, first nut;

[0035] 300, polygonal insert ring;

[0036] 400, clamping device; 410, outer ring plate; 420, inner ring plate; 430, second receiving through hole; 440, bolt; 450, second nut;

[0037] 500, auxiliary component; 510, mounting ring; 520, first threaded rod; 530, second threaded rod; 540, threaded sleeve. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The utility model provides Figure 1-5 A novel hub-spindle connection structure shown includes:

[0040] The hub 100 has a main shaft 2 passing through its center.

[0041] The polygonal insert ring 300 is inserted between the wheel hub 100 and the main shaft body 200 to realize the transmission of the main shaft body 200 and the wheel hub 100. The polygonal insert ring 300 is set to realize the synchronous rotation of the main shaft body 200 and the wheel hub 100, so that the torque of the main shaft body 200 and the wheel hub 100 during rotation is shared, thereby avoiding damage to the clamping device 400 caused by excessive torque between the main shaft body 200 and the wheel hub 100;

[0042] The clamping device 400 is adapted to be a structure for clamping and fixing the wheel hub 100. The clamping device 400 is provided to fix the connection between the wheel hub 100 and the spindle shaft 200, thereby preventing the spindle shaft 200 from being disconnected from the wheel hub 100 during use. At the same time, the wheel hub 100 and the spindle shaft 200 are positioned to prevent a gap from appearing between the wheel hub 100 and the spindle shaft 200, thereby preventing shaking.

[0043] Auxiliary components 500, multiple auxiliary components 500 are provided, and both ends of the auxiliary components 500 are fixedly connected to the wheel hub 100 and the main shaft body 200 respectively.

[0044] During installation, the main shaft body 200 is passed through the wheel hub 100, the polygonal insert ring 300 is inserted between the wheel hub 100 and the main shaft body 200, and the clamping device 400 clamps the wheel hub 100, and the auxiliary component 500 is used to connect and position the wheel hub 100 and the main shaft body 200.

[0045] In some embodiments of the present invention, a polygonal channel 110 adapted to the polygonal insert ring 300 is provided at the center of the wheel hub 100 , and a plurality of first receiving through holes 120 in an annular array are provided on the wheel hub 100 .

[0046] The polygonal channel 110 is adapted to the polygonal insert ring 300 so that the polygonal insert ring 300 can drive the wheel hub 100 to rotate synchronously when rotating.

[0047] The arrangement of the first receiving through hole 120 provides space for the installation of the clamping device 400 .

[0048] In some embodiments of the present invention, a polygonal plug 210 that is compatible with the polygonal plug ring 300 is fixedly installed at the end of the main shaft body 200, and a threaded head 220 that passes through the clamping device 400 is fixedly installed at the end of the polygonal plug 210, and the outer side of the threaded head 220 is screwed with a first nut 230 that limits the clamping device 400.

[0049] Among them, the polygonal plug post 210 is adapted to the polygonal plug ring 300, so that the polygonal plug ring 300 can drive the polygonal plug ring 300 to rotate synchronously when rotating, so that the polygonal plug ring 300 can drive the hub 100 to rotate when the clamping device 400 is damaged, thereby preventing the torque from being fully applied to the auxiliary component 500;

[0050] The threaded head 220 cooperates with the first nut 230 to squeeze the clamping device 400 and restrict the spindle shaft 200 to prevent the spindle shaft 200 from being separated from the wheel hub 100 under the pulling of external force.

[0051] In some embodiments of the present invention, the clamping device 400 includes:

[0052] The outer ring plate 410 is fixed to the end of the polygonal insert ring 300 and contacts the wheel hub 100;

[0053] The inner ring plate 420 is fixed to the outside of the spindle shaft 200 and contacts the wheel hub 100. The outer ring plate 410 and the inner ring plate 420 are matched to fix the wheel hub 100, the spindle shaft 200 and the polygonal insert ring 300 together, completing the hub-spindle connection installation;

[0054] Second connecting through holes 430 , a plurality of which are provided and are opened on the outer ring plate 410 and the inner ring plate 420 and correspond one-to-one with the first connecting through holes 120 ;

[0055] Bolt 440, bolt 440 passes through the first receiving through hole 120 and the second receiving through hole 4;

[0056] The second nut 450 is fixed on the outside of the bolt 440 and positions the outer ring plate 410 and the inner ring plate 420. The connection between the outer ring plate 410 and the inner ring plate 420 can be positioned through the coordinated setting of the bolt 440 and the second nut 450, and can drive the wheel hub 100 to rotate synchronously during rotation.

[0057] During installation, the outer ring plate 410 and the inner ring plate 420 are squeezed on both sides of the wheel hub 100 respectively, and the second connecting through hole 430 is made to correspond to the first connecting through hole 120, and then the bolt 440 is passed through the second connecting through hole 430 and the first connecting through hole 120 and the nut is fixed on the bolt 440.

[0058] In some embodiments of the present invention, the auxiliary component 500 includes:

[0059] A mounting ring 510 , which is fixed to the outside of the spindle shaft 200 ;

[0060] A plurality of first threaded rods 520 are provided and fixed to the outside of the mounting ring 510 in an annular array. The mounting ring 510 ensures that the first threaded rods 520 are fixedly mounted;

[0061] A second threaded rod 530, wherein a plurality of second threaded rods 530 are provided and fixed to the wheel hub 100 in an annular array and corresponding one to one with the first threaded rods 520. The first threaded rod 520 and the second threaded rod 530 are arranged in cooperation with each other to temporarily connect and fix the spindle shaft 200 and the wheel hub 100, so that the spindle shaft 200 and the wheel hub 100 can still be used for a distance when the clamping device 400 is damaged, leaving enough time for repair;

[0062] The threaded sleeve 540 is sleeved on the ends of the first threaded rod 520 and the second threaded rod 530. The rotation of the threaded sleeve 540 can drive the first threaded rod 520 and the second threaded rod 530 to move closer or farther away, thereby adjusting the length of the splicing of the first threaded rod 520 and the second threaded rod 530.

[0063] Working method of the utility model:

[0064] During assembly, the main shaft body 200 is passed through the wheel hub 100, and the polygonal plug ring 300 is inserted between the wheel hub 100 and the main shaft body 200. During insertion, the outer ring plate 410 and the inner ring plate 420 are respectively squeezed on both sides of the wheel hub 100, and the second receiving through hole 430 is made to correspond to the first receiving through hole 120. Then the bolt 440 is passed through the second receiving through hole 430 and the first receiving through hole 120 and the nut is fixed on the bolt 440. Then the mounting ring 510 is fixed to the outside of the main shaft body 200, and the second threaded rod 530 is fixed on the wheel hub 100. Then the threaded sleeve 540 is rotated so that the threaded sleeve 540 drives the first threaded rod 520 and the second threaded rod 530 to move closer or farther away under the action of the thread.

[0065] The electrical components mentioned in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that performs control such as a computer.

[0066] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A new hub-spindle connection structure, characterized in that: include: A wheel hub (100), wherein a main shaft body (200) passes through the center of the wheel hub (100); A polygonal insert ring (300), wherein the polygonal insert ring (300) is inserted between the wheel hub (100) and the main shaft body (200) to realize transmission between the main shaft body (200) and the wheel hub (100); A clamping device (400), the clamping device (400) being adapted to be a structure for clamping and fixing the wheel hub (100); Auxiliary components (500), wherein a plurality of auxiliary components (500) are provided, and two ends of the auxiliary components (500) are fixedly connected to the wheel hub (100) and the main shaft body (200), respectively.

2. The novel hub-spindle connection structure according to claim 1, characterized in that: A polygonal channel (110) adapted to the polygonal insert ring (300) is provided at the center of the wheel hub (100), and a plurality of first receiving through holes (120) in an annular array are provided on the wheel hub (100).

3. The novel hub-spindle connection structure according to claim 2, characterized in that: A polygonal plug post (210) adapted to the polygonal plug ring (300) is fixedly mounted on the end of the spindle shaft (200), a threaded head (220) passing through the clamping device (400) is fixedly mounted on the end of the polygonal plug post (210), and a first nut (230) that restricts the clamping device (400) is screwed onto the outer side of the threaded head (220).

4. The novel hub-spindle connection structure according to claim 3 is characterized in that: The clamping device (400) comprises: an outer ring plate (410), the outer ring plate (410) being fixed to the end of the polygonal insert ring (300) and in contact with the wheel hub (100); an inner ring plate (420), the inner ring plate (420) being fixed to the outside of the main shaft body (200) and in contact with the wheel hub (100); A plurality of second connecting through holes (430) are provided, and the second connecting through holes (430) are opened on the outer ring plate (410) and the inner ring plate (420), and correspond one-to-one to the first connecting through holes (120).

5. The novel hub-spindle connection structure according to claim 4 is characterized in that: The clamping device (400) further comprises: a bolt (440), the bolt (440) passing through the first receiving through hole (120) and the second receiving through hole (430); A second nut (450) is fixed on the outside of the bolt (440) and positions the outer ring plate (410) and the inner ring plate (420).

6. The novel hub-spindle connection structure according to claim 5, characterized in that: The auxiliary component (500) includes: A mounting ring (510), wherein the mounting ring (510) is fixed to the outside of the main shaft body (200); A plurality of first threaded rods (520) are provided and fixed on the outside of the mounting ring (510) in an annular array.

7. The novel hub-spindle connection structure according to claim 6, characterized in that: The auxiliary component (500) further includes: a second threaded rod (530), wherein a plurality of the second threaded rods (530) are provided and fixed on the wheel hub (100) in an annular array and correspond one-to-one to the first threaded rods (520); A threaded sleeve (540) is sleeved on the ends of the first threaded rod (520) and the second threaded rod (530).

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