Main shaft no-load test supporting tool of wind power single-bearing structure and test device

Abstract

The utility model discloses a spindle no-load test supporting tool and device of a wind power single-bearing structure, and relates to the field of wind power spindle tests.The spindle no-load test supporting tool comprises a supporting frame, two sliding seats and two supporting bearings, the two sliding seats are arranged on the supporting frame in a sliding mode, and the two supporting bearings correspond to the two sliding seats one to one; the supporting bearings are rotationally connected to the corresponding sliding seats, lead screws are arranged on the supporting frame and are in threaded connection with the sliding seats, and hand wheels are fixedly connected to the ends of the lead screws. According to the invention, rapid centering can be realized, and the applicability is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power main shaft test, in particular to a wind power single bearing structure main shaft no-load test supporting tool and test device. BACKGROUND

[0002] For the main shaft of repair and remanufacture, after the repair assembly is completed, the no-load test needs to be carried out to check the possible quality problems in the operation process of the main shaft. Since the single bearing structure main shaft has only one bearing seat, a three-point supporting structure (two points on both sides of the bearing seat and one point at the connection between the main shaft and the gear box) is adopted; however, when the factory test is carried out, the shaft head cannot be connected with the gear box, so that one supporting point is missing, and a supporting tool needs to be designed to maintain the rotation of the main shaft.

[0003] REFERENCE Figure 1 The wind power single bearing main shaft includes a main shaft 20 and a bearing seat 30. When the test is carried out, the supporting tool is arranged at the shaft head of the main shaft to support the shaft head; however, the existing supporting tool is of a non-adjustable structure, so that the supporting tool needs to be moved as a whole for centering, which is relatively troublesome. CONTENT OF THE UTILITY MODEL

[0004] In order to realize convenient centering and improve the applicability, the present application provides a wind power single bearing structure main shaft no-load test supporting tool and test device.

[0005] The wind power single bearing structure main shaft no-load test supporting tool and test device provided by the present application adopt the following technical scheme:

[0006] A wind power single bearing structure main shaft no-load test supporting tool includes a supporting frame, two sliding seats and two supporting bearings. The sliding seats are arranged on the supporting frame. The supporting bearings are arranged in one-to-one correspondence with the sliding seats. The supporting bearings are rotatably connected to the corresponding sliding seats. A lead screw is arranged on the supporting frame. The lead screw is threadedly connected to the sliding seats. The end of the lead screw is fixedly connected with a hand wheel.

[0007] By rotating the hand wheel, the lead screw is driven to rotate, and the sliding seat is driven to slide, so that the positions of the two supporting bearings are adjusted, the main shaft is centered, the tool does not need to be moved as a whole, and the operation is more convenient and fast. The two supporting bearings can be adjusted to adapt to main shafts with different diameters, and the applicability is stronger.

[0008] Preferably, a sliding groove is arranged on the supporting frame. A sliding block is arranged below the sliding seat. The sliding block is slidably connected with the sliding groove.

[0009] By adopting the above technical scheme, the sliding groove and the sliding block are matched to guide the sliding of the sliding seat, and the stability of the sliding of the sliding seat is improved.

[0010] Preferably, the support frame is provided with a first waist-shaped groove on both sides of the sliding seat, and the sliding seat is provided with a positioning bolt, which passes through the sliding seat and the first waist-shaped groove in sequence and is fixed by a positioning nut.

[0011] By adopting the above technical scheme, since the lead screw has no self-locking function, in order to prevent the sliding seat from slipping during the support of the main shaft, the positioning bolt is fixed by passing through the sliding seat, the waist-shaped hole and the positioning nut, so as to realize the fixed connection of the sliding seat and the support frame, which helps to improve the stability of the sliding seat.

[0012] Preferably, the outer side of the bearing is wrapped with a nylon sleeve.

[0013] By adopting the above technical scheme, the outer side of the bearing is wrapped with a nylon support sleeve, which can avoid damaging the main shaft during the test process.

[0014] Preferably, the support frame is provided with a plurality of reinforcing ribs.

[0015] By adopting the above technical scheme, the reinforcing ribs can increase the structural strength and support stability of the support frame.

[0016] A main shaft no-load test device of a wind power single bearing structure is characterized by comprising a base, a support seat, a transmission assembly and the above-mentioned supporting tool.

[0017] Preferably, the base is provided with a grid-shaped adjusting groove, the adjusting groove is T-shaped, the bottom of the support seat and the support frame is provided with a bottom plate, the bottom plate is provided with a second waist-shaped groove, the bottom plate is provided with an adjusting bolt, the adjusting groove is provided with a T-shaped block, the T-shaped block is provided with a threaded hole which is threadedly connected with the adjusting bolt, and the adjusting bolt passes through the second waist-shaped groove and extends into the adjusting groove to be connected with the T-shaped block.

[0018] By adopting the above technical scheme, the position of the support seat and the support frame can be adjusted by moving the position of the bottom plate, so as to adapt to the support test of main shafts of different sizes.

[0019] Preferably, the transmission assembly comprises a mounting seat and a driving motor, the driving motor is mounted on the mounting seat, the end of the driving motor is fixedly connected with a universal joint, the end of the universal joint away from the driving motor is fixedly connected with a connecting disc, the connecting disc is provided with a waist-shaped hole, the connecting disc is provided with a fixing bolt, and the fixing bolt is threadedly connected with the end of the main shaft through the waist-shaped hole.

[0020] By adopting the above technical scheme, the driving motor and the main shaft are connected through the connecting disc and the end of the main shaft, the universal joint is arranged between the driving motor and the main shaft, which can improve the fault tolerance and prevent the deviation of the centering of the driving motor and the main shaft.

[0021] In summary, the present application includes at least one of the following beneficial technical effects:

[0022] 1. Turn the hand wheel, drive the screw rod to rotate, and the screw rod drives the sliding seat to slide, so that the adjustment of the positions of the two supporting bearings can be realized, which is more convenient and faster, and through the adjustment of the two supporting bearings, the main shaft with different shaft diameters can be adapted, and the applicability is stronger. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 A schematic view of the structure of a wind power main shaft in the related art is shown in the figure.

[0024] Figure 2 A schematic view of the overall structure of the first embodiment of the present application is shown in the figure.

[0025] Figure 3 A schematic view of the partial structure of the first embodiment of the present application is shown in the figure, mainly showing the structure of the sliding groove and the first waist-shaped groove.

[0026] Figure 4 A schematic view of the partial structure of the first embodiment of the present application is shown in the figure, mainly showing the structure of the sliding block.

[0027] Figure 5 A schematic view of the overall structure of the second embodiment of the present application is shown in the figure.

[0028] Figure 6 A schematic view of the partial structure of the second embodiment of the present application is shown in the figure, mainly showing the structure of the T-shaped block.

[0029] Figure 7 A Figure 5 A partial enlarged view of A in the figure, mainly showing the structure of the connecting disc and the fixing bolt.

[0030] Reference signs: 1, support frame; 11, sliding groove; 12, first waist-shaped groove; 13, reinforcing rib; 2, sliding seat; 21, sliding block; 22, positioning bolt; 23, positioning nut; 3, supporting bearing; 31, nylon sleeve; 4, mounting plate; 41, screw rod; 42, hand wheel; 5, base; 51, adjusting groove; 52, T-shaped block; 6, support seat; 7, transmission assembly; 71, mounting seat; 72, driving motor; 8, bottom plate; 81, second waist-shaped groove; 82, adjusting bolt; 9, universal joint; 10, connecting disc; 101, waist-shaped hole; 102, fixing bolt; 20, main shaft; 30, bearing seat. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying Figures 2-7 The present application will be further described in detail.

[0032] The present application discloses a wind power single bearing structure main shaft no-load test supporting tool and test device.

[0033] Embodiment 1

[0034] With reference to Figure 2 , the main shaft no-load test supporting tool of the single bearing structure of the wind power generator includes a support frame 1, two sliding seats 2 and two supporting bearings 3, the two sliding seats 2 are slidingly arranged on the support frame 1, the two supporting bearings 3 are arranged in one-to-one correspondence with the two sliding seats 2, the supporting bearing 3 is rotatably connected to the corresponding sliding seat 2 through a connecting shaft, and the outer side of the supporting bearing 3 is wrapped with a nylon sleeve 31. Two mounting plates 4 are fixedly connected to the support frame 1, a screw rod 41 is rotatably connected to each of the two mounting plates 4, the two screw rods 41 correspond to the two sliding seats 2 in one-to-one correspondence, a nut seat is threadedly connected to the screw rod 41, the nut seat is fixedly connected to the corresponding sliding seat 2, and a hand wheel 42 is fixedly installed at the end of the screw rod 41.

[0035] Rotating the hand wheel 42 drives the screw rod 41 to rotate, and then drives the sliding seat 2 to slide, so as to realize the adjustment of the positions of the two supporting bearings 3 and complete the centering of the main shaft. In this way, the whole tool does not need to be moved, and the operation is faster and more convenient. Moreover, by adjusting the positions of the two supporting bearings 3, the main shafts with different diameters can be adapted, and the applicability is greatly enhanced.

[0036] With reference to Figure 2 , Figure 3 and Figure 4 , a sliding groove 11 is formed in the support frame 1, and a sliding block 21 is fixedly connected to the lower side of the sliding seat 2 through a bolt, the sliding block 21 is in sliding cooperation with the sliding groove 11, plays a guiding role in the movement of the sliding seat 2, and improves the stability of the sliding of the sliding seat 2. First waist-shaped grooves 12 are formed in the two sides of the support frame 1 located on the two sides of the sliding seat 2, a positioning bolt 22 is arranged on the sliding seat 2, the positioning bolt 22 passes through the sliding seat 2 and the first waist-shaped groove 12, and the end portion of the positioning bolt 22 is fixedly connected to a positioning nut 23. Through the pressing action of the positioning nut 23 and the groove opening of the first waist-shaped groove 12, the fixed connection between the support frame 1 and the sliding seat 2 is realized, and then the stability of the sliding seat 2 after positioning is improved.

[0037] A plurality of reinforcing ribs 13 are integrally formed on the support frame 1, which helps to improve the structural strength and stability of the support frame 1.

[0038] Embodiment 2

[0039] With reference to Figure 5 , Figure 6 and Figure 7 , the main shaft no-load test device of the single bearing structure of the wind power generator includes a base 5, a support seat 6, a transmission assembly 7 and the supporting tool in Embodiment 1, the support seat 6 is installed on the base 5, and the support seat 6 is fixedly connected to the bearing seat on the main shaft of the wind power generator through bolts. The connection and structure here are prior art, and will not be described in detail.

[0040] The base 5 is provided with a grid-shaped adjusting groove 51, the adjusting groove 51 is T-shaped, the bottom of the support seat 6 and the support frame 1 is integrally formed with a bottom plate 8, the bottom plate 8 is provided with a second waist-shaped groove 81, the bottom plate 8 is provided with an adjusting bolt 82, the adjusting groove 51 is provided with a T-shaped block 52, the T-shaped block 52 is provided with a threaded hole which is threadedly connected with the adjusting bolt 82, and the adjusting bolt 82 passes through the second waist-shaped groove 81 and extends into the adjusting groove 51 and is connected with the T-shaped block 52. By moving the position of the bottom plate 8 on the base 5, the positions of the support seat 6 and the support frame 1 are adjusted to adapt to different specifications of the main shaft.

[0041] The transmission assembly 7 comprises a mounting seat 71 and a driving motor 72, the mounting seat 71 is mounted on the base 5, and the mounting mode is the same as the connection mode of the bottom plate 8 and the base 5. The driving motor 72 is fixedly installed on the mounting seat 71, the end of the driving motor 72 is fixedly connected with the universal joint 9 through a flange, the end of the universal joint 9 away from the driving motor 72 is fixedly connected with the connecting disc 10 through a flange, the connecting disc 10 is provided with a waist-shaped hole 101, and the connecting disc 10 is provided with a fixing bolt 102, the fixing bolt 102 passes through the waist-shaped hole 101 and is connected with a threaded hole of the end of the main shaft.

[0042] The main shaft and the end of the driving motor 72 are fixedly connected through the connecting disc 10 to realize power transmission. The universal joint 9 arranged between the two can effectively compensate for the deviation of the centering of the driving motor 72 and the main shaft. The flexible transmission characteristics of the universal joint 9 allow the two shafts to have a relative offset within a certain range without affecting the power transmission, which significantly improves the fault tolerance of the transmission system.

[0043] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A no-load test support fixture for a wind turbine single-bearing structure, characterized in that: It includes a support frame (1), a sliding seat (2) and a support bearing (3). There are two sliding seats (2) and they are slidably mounted on the support frame (1). There are two support bearings (3) and they correspond one-to-one with the two sliding seats (2). The support bearings (3) are rotatably connected to the corresponding sliding seats (2). A lead screw (41) is provided on the support frame (1). The lead screw (41) is threadedly connected to the sliding seat (2). A handwheel (42) is fixedly connected to the end of the lead screw (41).

2. The main shaft no-load test support fixture of a wind turbine single bearing structure according to claim 1, characterized in that: The support frame (1) is provided with a sliding groove (11), and a sliding block (21) is provided below the sliding seat (2). The sliding block (21) slides and engages with the sliding groove (11).

3. The wind turbine single-bearing structure main shaft no-load test support fixture according to claim 1, characterized in that: The support frame (1) is provided with first waist-shaped grooves (12) on both sides of the sliding seat (2). The sliding seat (2) is provided with positioning bolts (22). The positioning bolts (22) pass through the sliding seat (2) and the first waist-shaped grooves (12) in sequence and are fixed by positioning nuts (23).

4. The wind turbine single-bearing structure main shaft no-load test support fixture according to claim 1, characterized in that: The outer side of the support bearing (3) is wrapped with a nylon sleeve (31).

5. The main shaft no-load test support fixture of a wind turbine single bearing structure according to claim 1, characterized in that: The support frame (1) is provided with multiple reinforcing ribs (13).

6. A wind turbine single-bearing structure main shaft no-load test device, characterized in that: It includes a base (5), a support (6), a transmission assembly (7), and a support fixture as described in any one of claims 1-5.

7. The wind turbine single-bearing structure main shaft no-load test device according to claim 6, characterized in that: The base (5) has a grid-shaped adjustment groove (51) and the adjustment groove (51) is T-shaped. The bottom of the support base (6) and the support frame (1) are both provided with a base plate (8). The base plate (8) is provided with a second waist-shaped groove (81). The base plate (8) is provided with an adjustment bolt (82). The adjustment groove (51) is provided with a T-shaped block (52). The T-shaped block (52) is provided with a threaded hole that is threaded to the adjustment bolt (82). The adjustment bolt (82) passes through the second waist-shaped groove (81) and extends into the adjustment groove (51) to connect with the T-shaped block (52).

8. The wind turbine single-bearing structure main shaft no-load test device according to claim 6, characterized in that: The transmission assembly (7) includes a mounting base (71) and a drive motor (72). The drive motor (72) is mounted on the mounting base (71). A universal joint (9) is fixedly connected to the end of the drive motor (72). A connecting plate (10) is fixedly connected to the end of the universal joint (9) away from the drive motor (72). A waist-shaped hole (101) is provided on the connecting plate (10). A fixing bolt (102) is provided on the connecting plate (10). The fixing bolt (102) passes through the waist-shaped hole (101) and is threaded to the end of the spindle.

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