A self-contained, unpowered, disc turning device

Abstract

This utility model relates to the technical field of turning gear devices, specifically to a non-powered turning gear device. The non-powered turning gear device provided by this utility model includes two support frames arranged along a first direction, two sets of roller seats, and multiple rollers. Each support frame has a set of roller seats mounted on its top, and each set of roller seats includes two roller seats arranged along a second direction. Each roller seat has a roller rotatably mounted on it, and the axis of each roller extends along the first direction. The distance between the two roller seats in each set is adjustable. The two support frames are connected by a connector, and the distance between the two support frames is also adjustable. The first direction and the second direction are perpendicular. Workers can directly manually drive the fan rotor to rotate for turning operations, making the entire turning process simpler, more convenient, and saving time and effort.

Description

Technical Field

[0001] This utility model relates to the field of turning gears, specifically to a non-powered turning gear. Background Technology

[0002] The blower rotor is a crucial spare part of the blower system, weighing several tons and being enormous in size. To prevent the rotor assembly from deflecting due to long-term static load, which could lead to rotor failure, the rotor assembly needs to be rotated monthly. Currently, when rotating the blower rotor, after placing it on the support, a crane or overhead crane is used to rotate the rotor assembly via ropes.

[0003] Currently, using cranes or overhead trolleys to rotate the rotor assembly via ropes is time-consuming and labor-intensive. Furthermore, there is friction between the main shaft and the support of the wind turbine rotor, and the blades are under stress. The rotation process can easily damage the shaft or blades. Utility Model Content

[0004] (I) The problem to be solved by this utility model is that it is time-consuming and labor-intensive to use a crane or overhead crane to drive the rotor assembly to rotate via ropes. Furthermore, there is friction between the main shaft of the fan rotor and the support, and the blades are under stress. The rotation process can easily cause damage to the shaft or blades.

[0005] (II) Technical Solution

[0006] A non-powered turning device includes two support frames arranged along a first direction, two sets of roller seats, and multiple rollers; each support frame has a set of roller seats mounted on its top, each set of roller seats includes two roller seats, the two roller seats are arranged along a second direction, and each roller seat has a roller rotatably mounted on it, the axis of the roller extending along the first direction; the distance between the two roller seats in each set of roller seats is adjustable, the two support frames are connected by a connector, and the distance between the two support frames is also adjustable;

[0007] The first direction and the second direction are perpendicular.

[0008] According to one embodiment of the present invention, the top of the support frame is provided with an elongated hole extending in a second direction, and the roller seat and the elongated hole are connected by bolts and nuts.

[0009] According to one embodiment of the present invention, an anti-displacement member is provided on each side of the top of the support frame along the second direction, and two roller seats on the top of the support frame are located between the two anti-displacement members. The anti-displacement members correspond one-to-one with the roller seats, and the anti-displacement members abut against the corresponding roller seats to prevent the corresponding roller seats from moving along the second direction.

[0010] According to one embodiment of the present invention, the anti-displacement component includes a positioning block and an adjusting block. The positioning block is welded to the top of the support frame, and the adjusting block is interference-fitted between the positioning block and the corresponding support roller seat.

[0011] According to one embodiment of the present invention, the connector includes a connecting screw and at least one locking nut. The two support frames are respectively provided with a first mounting hole and a second mounting hole arranged coaxially. The end of the connecting screw has a bolt head. The connecting screw passes through the first mounting hole and the second mounting hole on the two support frames in sequence. The locking nut is tightened to the end of the connecting screw.

[0012] According to one embodiment of the present invention, a plurality of connectors are provided, and the plurality of connectors are arranged along the second direction between the two support frames.

[0013] According to one embodiment of the present invention, the support frame includes a base, an upright plate, and a top plate connected in sequence. The height of the top plate, the upright plate, and the base gradually decreases. Two upright plates are provided, and the two upright plates are arranged along a first direction.

[0014] According to one embodiment of the present invention, a plurality of reinforcing plates are welded between the base, the upright plate and the top plate.

[0015] The beneficial effects of this utility model are:

[0016] This non-powered turning device has at least the following advantages in turning the fan rotor:

[0017] First, workers can directly drive the fan rotor to rotate manually for turning operations, without the need for a turning machine or crane to drive the rotor to rotate at a predetermined angle and direction with ropes. The entire turning process is simpler, more convenient, and saves time and effort.

[0018] Secondly, the main shaft of the wind turbine rotor rests on the support rollers of the two sets of support roller seats. Since the friction between the main shaft and the support rollers is rolling friction, the friction between the main shaft and the support rollers is small, which will not damage the main shaft of the wind turbine rotor or the blades of the wind turbine rotor.

[0019] Third, using a turning wheel or crane in conjunction with ropes to drive the rotor poses significant safety hazards. If the rope breaks, it will not only damage the rotor itself but also cause injury to people. Using this non-powered turning wheel device for turning operations is much safer.

[0020] Fourth, since the distance between the two support rollers in each set of support rollers can be adjusted, and the distance between the two support seats can also be adjusted, it can adapt to fan rotors of different sizes, making it more practical. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A front view provided for an embodiment of this utility model;

[0023] Figure 2 A top view provided for an embodiment of this utility model.

[0024] Icons: 1. Blade; 2. Main shaft; 3. Base; 4. Vertical plate; 5. Reinforcing plate; 6. Top plate; 7. Support roller seat; 8. First support roller; 9. Adjusting block; 10. Positioning block; 11. Second support roller; 12. Connecting screw; 13. First locking nut; 14. Second locking nut. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] like Figures 1-2 As shown, one embodiment of this utility model provides a non-powered turning device, including two support frames arranged along a first direction, two sets of roller seats 7, and multiple rollers; each support frame has a set of roller seats 7 installed on its top, each set of roller seats 7 includes two roller seats 7, the two roller seats 7 are arranged along a second direction, and each roller seat 7 has a roller rotatably mounted on it, the axis of the roller extending along the first direction; the distance between the two roller seats 7 in each set of roller seats 7 is adjustable, the two support frames are connected by a connector, and the distance between the two support frames is adjustable; the first direction and the second direction are perpendicular to each other.

[0027] It should be noted that the fan rotor includes the main shaft 2 and blades 1 connected together.

[0028] The first direction mentioned above is Figure 1 The axial direction of the intermediate rotor, the second direction is Figure 1 The left and right directions in the middle.

[0029] In this embodiment, a crane is used to lift the fan rotor onto the rollers of two sets of roller supports 7 on two support frames, so that the main shaft 2 of the fan rotor rests on the rollers of the two sets of roller supports 7. Then, the fan rotor is manually driven to rotate for turning.

[0030] Compared with traditional turning gears, using this unpowered turning gear to turn the wind turbine rotor has at least the following advantages:

[0031] First, workers can directly drive the fan rotor to rotate manually for turning operations, without the need for a turning machine or crane to drive the rotor to rotate at a predetermined angle and direction with ropes. The entire turning process is simpler, more convenient, and saves time and effort.

[0032] Secondly, the main shaft 2 of the fan rotor rests on the support rollers of the two sets of support roller seats 7. Since the friction between the main shaft 2 and the support rollers is rolling friction, the friction between the main shaft 2 and the support rollers is small, so it will not damage the main shaft 2 of the fan rotor, nor will it damage the blades 1 of the fan rotor.

[0033] Third, using a turning wheel or crane in conjunction with ropes to drive the rotor poses significant safety hazards. If the rope breaks, it will not only damage the rotor itself but also cause injury to people. Using this non-powered turning wheel device for turning operations is much safer.

[0034] Fourth, since the distance between the two support roller seats 7 in each set of support roller seats 7 can be adjusted, and the distance between the two support seats can also be adjusted, it can adapt to fan rotors of different sizes, making it more practical.

[0035] In this embodiment, each support frame has two roller seats 7 mounted on its top, and each roller seat 7 has one roller mounted on it, for a total of four rollers. Among them, the two rollers on one support frame are the first rollers 8, and the two rollers on the other support frame are the second rollers 11. The first rollers 8 and the second rollers 11 correspond one-to-one, and the first rollers 8 and their corresponding second rollers 11 are the same size and coaxially arranged.

[0036] In this embodiment, as Figure 1 and Figure 2 As shown, the support frame includes a base 3, an upright plate 4, and a top plate 6 connected in sequence. The upright plate 4 is vertically welded to the base 3, and the top plate 6 is horizontally welded to the top of the upright plate 4. There are two upright plates 4, arranged along the axis of the rotor. It should be noted that the purpose of setting two upright plates 4 in this embodiment is to improve the connection strength between the base 3 and the top plate 6, thereby improving the strength of the entire support frame.

[0037] In some embodiments, to improve the load-bearing capacity of the support frame, such as Figure 1As shown, multiple reinforcing plates 5 are welded to each upright plate 4. The top of the reinforcing plate 5 is welded to the top plate 6, and the bottom of the reinforcing plate 5 is welded to the base 3.

[0038] In this embodiment, an elongated hole is provided on the top plate 6, which is set along the length of the top plate 6. A round hole is provided on the bottom plate of the roller support 7. The roller support 7 and the elongated hole are connected by bolts and nuts. Specifically, when installing the roller support 7, first adjust the roller support 7 to a suitable position on the top plate 6 so that the round hole on the roller support 7 is aligned with the elongated hole on the top plate 6. Then, bolts are used to pass through the elongated hole on the top plate 6 and the round hole on the roller support 7 in sequence from low to high. Finally, nuts are screwed on the top of the bolts and tightened.

[0039] It is important to know that the diameter of the main shaft 2 of the fan rotor varies depending on its size. In order to better support the fan rotors of different sizes, it is sometimes necessary to adjust the distance between the two support roller seats 7 on the same support frame. In this embodiment, when it is necessary to adjust the distance between the two support roller seats 7 on the same support frame, simply remove the bolts and nuts between the support roller seats 7 and the top plate 6, then move the two support roller seats 7 to the appropriate position, and finally re-fix the support roller seats 7 to the top plate 6 using bolts and nuts.

[0040] It should be noted that in this embodiment, there are no specific restrictions on the number and arrangement of the elongated holes on the top plate 6 and the round holes on the roller seat 7; any reasonable arrangement is acceptable.

[0041] As a specific embodiment, the top plate 6 has two strip-shaped holes arranged along the axis of the main shaft 2. Each roller support 7 has a row of round holes on its front and rear sides, located above the two strip-shaped holes. This ensures that when the roller support 7 is fixed to the top plate 6 using bolts and nuts, it is stably installed on the top plate 6 and is not easily misaligned.

[0042] It should be noted that, due to the large weight of the fan rotor, when the rollers on the two support frames support the main shaft 2 of the fan rotor, if... Figure 1 As shown, the two roller seats 7 on the same support frame tend to move horizontally outward. In order to prevent the roller seats 7 from moving horizontally outward due to loose bolts, an anti-displacement component is installed on the left and right sides of each top plate 6.

[0043] Specifically, the anti-displacement components include a positioning block 10 and an adjusting block 9. The positioning block 10 is welded to the top plate 6, while the adjusting block 9 is interference-fitted between the positioning block 10 and the roller support 7. Thus, since each roller support 7 is held in place by its corresponding anti-displacement component, the anti-displacement component restricts the roller support 7 from moving outwards, thereby ensuring the safety of the turning gear and reducing the burden on the bolts and nuts between the roller support 7 and the top plate 6.

[0044] In this embodiment, both the adjusting block 9 and the positioning block 10 are made of alloy sheet.

[0045] In some embodiments, Figure 2 As shown, a first mounting hole is provided on the upright plate 4 of the support frame located on the front side, and a second mounting hole is provided on the upright plate 4 located on the rear side. The first mounting hole and the second mounting hole are coaxially arranged and correspond one to one.

[0046] The aforementioned connector includes a connecting screw 12, a first locking nut 13, and a second locking nut 14, wherein the first end of the connecting screw 12 has a hexagonal bolt head.

[0047] Now Figure 2 The description of how to connect two support frames using connectors is as follows: First, the second end of the connecting screw 12 is passed through the first mounting hole on the front upright plate 4. Then, a second locking nut 14 is screwed onto the second end of the connecting screw 12. Next, the second end of the connecting screw 12 is passed through the second mounting hole on the other upright plate 4 until the hexagonal bolt head on the first end of the connecting screw 12 is in contact with the front upright plate 4. Then, a first locking nut 13 is screwed onto the second end of the connecting screw 12. By first tightening the first locking nut 13 at the end of the connecting screw 12, the distance between the two support frames can be adjusted. After the distance between the two support frames is adjusted, the second locking nut 14 is tightened, so that the rear upright plate 4 is fixed between the first locking nut 13 and the second locking nut 14.

[0048] As can be seen, in this embodiment, the connecting piece can not only connect the two support frames and improve the strength of the entire turning device, but also adjust the distance between the two support frames so as to accommodate fan rotors of different sizes.

[0049] In some embodiments, multiple connectors are provided, and the multiple connectors are arranged along... Figure 1 They are arranged in a left-right direction between the two support frames.

[0050] In some embodiments, each roller support 7 is equipped with two sets of double-row self-aligning roller bearings. Double-row self-aligning roller bearings have the advantages of high load capacity, self-aligning capability, and long-term use, and can ensure that the roller can rotate freely relative to the roller support 7.

[0051] In the description of this utility model, it should be noted that the terms "upper" and "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0052] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0053] 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, improvements, etc., 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 non-powered turning gear device, characterized in that, It includes two support frames arranged along a first direction, two sets of roller seats (7) and multiple rollers; each support frame is equipped with a set of roller seats (7) on its top, each set of roller seats (7) includes two roller seats (7), the two roller seats (7) are arranged along a second direction, and each roller seat (7) is rotatably mounted with a roller, the axis of the roller extending along the first direction; the distance between the two roller seats (7) in each set of roller seats (7) is adjustable, the two support frames are connected by a connector, and the distance between the two support frames is adjustable; The first direction and the second direction are perpendicular.

2. The unpowered turning gear device according to claim 1, characterized in that, The top of the support frame is provided with an elongated hole extending in the second direction, and the roller seat (7) and the elongated hole are connected by bolts and nuts.

3. The unpowered turning gear device according to claim 2, characterized in that, The top of the support frame is provided with an anti-displacement component on each side along the second direction. The two roller seats (7) on the top of the support frame are located between the two anti-displacement components. The anti-displacement components correspond one-to-one with the roller seats (7). The anti-displacement components abut against the corresponding roller seats (7) to prevent the corresponding roller seats (7) from moving along the second direction.

4. The unpowered turning gear device according to claim 3, characterized in that, The anti-displacement component includes a positioning block (10) and an adjusting block (9). The positioning block (10) is welded to the top of the support frame, and the adjusting block (9) is interference-fitted between the positioning block (10) and the corresponding roller seat (7).

5. The unpowered turning gear device according to claim 1, characterized in that, The connector includes a connecting screw (12) and at least one locking nut. The two support frames are respectively provided with a first mounting hole and a second mounting hole arranged coaxially. The end of the connecting screw (12) has a bolt head. The connecting screw (12) passes through the first mounting hole and the second mounting hole on the two support frames in sequence. The locking nut is tightened at the end of the connecting screw (12).

6. The unpowered turning gear device according to claim 5, characterized in that, Multiple connectors are provided, and the multiple connectors are arranged along the second direction between the two support frames.

7. The unpowered turning gear device according to claim 1, characterized in that, The support frame includes a base (3), a vertical plate (4), and a top plate (6) connected in sequence. The heights of the top plate (6), the vertical plate (4), and the base (3) gradually decrease. There are two vertical plates (4), which are arranged along a first direction.

8. The unpowered turning gear device according to claim 7, characterized in that, Multiple reinforcing plates (5) are welded between the base (3), the upright plate (4), and the top plate (6).

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