CN206530449U - Barring gear for generator - Google Patents

Abstract

The utility model provides a turning device for a generator. The generator includes a casing, a rotor arranged in the casing, a main shaft connected to the rotor, and a main shaft flange connected to the main shaft. The turning device for a generator includes a support part, a connecting part and a pulling part, wherein: the support part includes a support arm, the support arm has a first end and a second end, and the first end of the support arm is rotatably Connect to the first position on the spindle flange. The connecting portion includes a connecting piece having a first end and a second end, the first end of the connecting piece being connected to a second location on the spindle flange, the second location being spaced apart from the first location, and The second end of the connecting piece is connected to the second end of the support arm. The pulling part is provided on the supporting part or the connecting part and can be connected with the pulling mechanism. One or more purposes of making the turning device simple in structure, easy to install and disassemble, simplifying the turning operation process and thereby improving turning efficiency can be achieved.

Description

Barring gear for generators

technical field

The utility model relates to the technical field of generator auxiliary equipment, in particular to a cranking device for a generator.

Background technique

At present, with the rapid development of electric power technology, large-scale generators have been widely used, but large-scale generators often need to be transported to the construction site first, and then installed. The construction site awaits installation.

For example, in the technical field of wind power generators, MW-level wind power generators are mainly composed of towers, nacelles, generators, hubs and blades. Before hoisting, the large components of the unit (including the nacelle, generator, hub, tower, and blades) usually need to be placed at the machine position for a period of time, commonly known as "yard", and affected by weather, work obstruction, etc., the progress of project installation Often lagging behind will cause the storage time of large parts of the generator set to be too long. If the storage time of the generator is too long, such as several months, Brinell indentation is likely to occur at the contact position between the main bearing roller and the raceway, which will affect the normal use of the main bearing.

In order to avoid damage to the main bearing of the generator, it is necessary to regularly use external force to rotate the generator, that is, "cranking". At present, when cranking in a wind farm, one end of the traction rope is usually fixed on the hanging point of the generator, and multiple people simultaneously pull the other end of the traction rope to drive the generator to rotate, or use a vehicle to pull the other end of the traction rope to drag the generator to rotate. However, as the power of wind turbines increases and the starting torque of the generator increases, it is increasingly difficult to meet the needs of on-site cranking by means of pulling by people. When cranking the generator, a large operating area is often required, and the cranking process is complicated.

Therefore, a new cranking device for generators is badly needed.

Utility model content

According to an embodiment of the present invention, a cranking device for a generator is provided, which can realize one or more of the simple structure of the cranking device, easy installation and disassembly, and simplified cranking operation process to improve the cranking efficiency. purpose.

According to one aspect of the embodiment of the present invention, there is provided a cranking device for a generator, the generator includes a casing, a rotor arranged in the casing, a main shaft connected with the rotor, and a main shaft flange connected with the main shaft , the barring device comprises a supporting part, a connecting part and a pulling part, wherein: the supporting part comprises a supporting arm, the supporting arm has a first end and a second end far away from the first end, and the first end of the supporting arm Rotatably connected to the first position on the main shaft flange; the connecting part includes a connecting piece, the connecting piece has a first end and a second end away from the first end, the first end of the connecting piece is connected to At the second position on the main shaft flange, the second position is spaced apart from the first position, and the second end of the connecting piece is connected to the second end of the support arm; and the pulling part is arranged on the supporting part or the connecting part and can be connected to the pulling mechanism.

According to an aspect of an embodiment of the present invention, the first end of the support arm and/or the first end of the connecting piece is connected to the main shaft flange through a flange connection hole provided on the end surface of the main shaft flange.

According to an aspect of the embodiment of the present invention, the supporting part further includes a supporting bracket, and the supporting bracket extends from the bottom of the supporting arm toward a direction away from the supporting arm, so that the supporting arm is kept parallel to the end surface of the main shaft flange.

According to an aspect of the embodiment of the present invention, the supporting bracket is arranged at the first end of the supporting arm and extends from the bottom of the supporting arm to the end surface of the main shaft flange in a direction away from the supporting arm and/or the supporting bracket is arranged at The support arm is close to the second end and extends from the bottom of the support arm to the casing of the generator in a direction away from the support arm.

According to an aspect of the embodiment of the utility model, when the supporting bracket is arranged at the place close to the second end of the supporting arm, and the supporting bracket further includes a supporting plate, the supporting bracket passes between the supporting plate and the casing of the generator form the contact surface.

According to an aspect of the embodiment of the present invention, the supporting bracket and the supporting arm are movably connected, so that the relative position between the supporting bracket and the supporting arm along the height direction of the supporting bracket can be adjusted.

According to one aspect of the embodiment of the present invention, the support bracket includes a base and a plurality of support rods, one end of each support rod in the plurality of support rods is arranged on the base, and the other end of each support rod in the plurality of support rods One end is respectively provided with a jacking piece that can move axially along each support rod, and the respective jacking pieces of the multiple support rods are respectively connected with the support arms.

According to an aspect of the embodiment of the present invention, the supporting bracket is movably connected with the supporting arm, so that the relative position between the supporting bracket and the supporting arm along the length direction of the supporting arm can be adjusted.

According to an aspect of the embodiment of the present utility model, the support arm and the supporting bracket are connected through a slide rail structure.

According to an aspect of the embodiment of the present invention, the connecting part further includes a tie rod, the tie rod has a first end and a second end away from the first end, and the first end of the tie rod is fixedly connected to the first end of the main shaft flange. position, the second end of the tie rod is connected to the first end of the connector.

According to an aspect of the embodiment of the present invention, the length of the pull rod is shorter than the length of the support arm, so that a predetermined angle is formed between the connecting piece and the support arm.

According to an aspect of the embodiment of the present invention, the connecting piece is a rigid piece, and the connecting piece is rotatably connected to the second end of the support arm and the second end of the pull rod respectively.

According to an aspect of an embodiment of the present utility model, the connecting piece is a flexible piece.

According to an aspect of an embodiment of the present utility model, at least one of the support arm and the tie rod is a profile.

To sum up, in the cranking device used for generators according to the embodiment of the present utility model, the main shaft flange is driven by the supporting part and the connecting part connected to each other to drive the rotor connected to the main shaft flange to rotate, so that the supporting arm in the supporting part and the connecting part One end of each connecting piece in the connecting portion is respectively connected to two positions spaced apart from each other on the main shaft flange of the engine, and the respective other ends of the supporting arm and the connecting piece are connected to each other. The support arm, the connecting piece and the main shaft flange form a stable connection structure with each other, and then the pulling part connected to at least one of the supporting part or the connecting part is connected with the pulling mechanism, that is, the pulling mechanism can The supporting part and the connecting part are pulled, and then the main shaft flange of the generator is dragged to drive the main shaft and the rotor connected with the main shaft to rotate. Therefore, the cranking device of the embodiment of the present invention uses the principle of a lever similar to the support part and the connecting part, and when the auxiliary generator is cranked, the required traction force is smaller, thereby saving the time of the cranking operation and improving work efficiency. Moreover, the barring device of the embodiment of the utility model has a simple structure and is convenient for installation and disassembly, and at the same time, the barring device is not easy to be damaged, further increasing the service life of the barring device.

Description of drawings

Can understand the utility model better from the following in conjunction with accompanying drawing to the description of the specific embodiment of the utility model, wherein:

Other features, objects and advantages of the present invention will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings, wherein the same or similar reference numerals represent the same or similar features.

Fig. 1 is a schematic top view of a cranking device for a generator in use according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the barring device in Fig. 1 .

Fig. 3 is a schematic top view of the use state of the barring device according to another embodiment of the present invention.

FIG. 4 is a schematic front view of the barring device in FIG. 3 in use.

Fig. 5 is a schematic diagram of the overall structure of the barring device in Fig. 3 and Fig. 4 .

Fig. 6 is a structural schematic diagram of a support portion in the barring device of Fig. 5 .

FIG. 7 is a schematic cross-sectional structural diagram of the support portion in FIG. 6 along the D-D direction.

FIG. 8 is a schematic bottom view of the supporting part in FIG. 6 .

Fig. 9 is a schematic front structural view of a leg of a support part according to an embodiment of the present invention.

FIG. 10 is an enlarged schematic diagram of a partial structure of part A of the barring device in FIG. 3 .

FIG. 11 is an enlarged schematic diagram of a partial structure of part B in FIG. 4 .

Fig. 12 is a schematic structural view of the pulling part of the barring device according to the embodiment of the present invention.

FIG. 13 is an enlarged schematic diagram of a partial structure of part C in FIG. 3 .

in:

100-turning device; 101-turning device;

10- traction department;

20-support portion; 21-support arm; 21a-first end; 21b-second end; 21c-slider; 22-leg; 22a-through hole; 22b-operation window; -supporting bracket; 231-support rod; 232-angle connector; 233-contact portion; 233a-base; 233b-supporting plate; 234-fastener; 235-fastener; 24-pin; 25-pin;

30-connection; 31-connector; 31a-first end; 31b-second end; 32-tie rod; 32a-first end; 32b-second end; 33-fixing block; 33a- through hole;

40-pulling part; 41-cover plate; 42-connecting plate; 42a-connecting hole; 43-rib plate;

50-pulling mechanism;

200-generator; 210-main shaft; 220-main shaft flange; 220a-flange connection hole; 230-housing; 230a-end face;

300 - transport bracket;

H - predetermined height;

L - predetermined length.

detailed description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention. In the drawings and the following description, at least some of the well-known structures and techniques are not shown in order to avoid unnecessary obscurity of the present invention; and, for clarity, the size of some structures may be exaggerated. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed descriptions will be omitted. Furthermore, the features, structures, or characteristics described hereinafter may be combined in any suitable manner in one or more embodiments.

The orientation words appearing in the following descriptions are all the directions shown in the figure, and are not intended to limit the specific structure of the cranking device for generators of the present invention. In the description of the present utility model, it should also be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a Detachable connection, or integral connection; it can be directly connected or indirectly connected through an intermediate structure. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model according to specific situations.

The cranking device for the generator provided by the embodiment of the utility model can assist the generator to carry out the cranking operation. In the following embodiments, the cranking device for the generator is applied to the technical field of wind power generation, Taking the cranking of the generator in the wind power generating set as an example, the structure of the cranking device for the generator in the embodiment of the present invention will be described. During the yard process before the generator is hoisted, regular cranking of the generator can prevent the Brinell indentation at the contact position between the roller of the generator main bearing and the raceway, which will affect the normal operation of the generator main bearing. problem of use. Certainly, the embodiment of the present invention is not limited thereto, and in other embodiments, the cranking device for the generator can also be applied in other environments to assist the generator in cranking.

In order to better understand the utility model, the following describes in detail the barring device for a generator according to the embodiment of the utility model in conjunction with FIGS. 1 to 13 .

Fig. 1 is a schematic diagram of a use state of a cranking device 100 for a generator according to an embodiment of the present invention, and Fig. 2 is a schematic diagram of the overall structure of the cranking device 100 in Fig. 1 . As shown in Fig. 1 and Fig. 2, the cranking device 100 (hereinafter referred to as the cranking device 100) for the generator according to the embodiment of the present utility model can assist the generator 200 in the wind power generating set to perform cranking, and the generator 200 It includes a housing 230 , a rotor (not shown in the figure) and a stator (not shown in the figure) arranged in the housing 230 , a main shaft 210 connected with the rotor, and a main shaft flange 220 connected with the main shaft.

The cranking device 100 for a generator according to an embodiment of the present invention includes: a support part 20, a connecting part 30 and a pulling part 40, wherein: the support part 20 includes a support arm 21, and the support arm 21 has a first end 21 a and a second end 21 b away from the first end 21 a, the first end 21 a of the support arm 21 is rotatably connected to the main shaft flange 220 at a first position. The connecting part 30 includes a connecting part 31, the connecting part 31 has a first end part 31a and a second end part 31b away from the first end part 31a, the first end part 31a of the connecting part 31 is connected to the first end part 31a on the main shaft flange 220 At the second position, the second position is spaced apart from the first position. And the second end portion 31b of the connecting member 31 is connected with the second end portion 21b of the support arm 21 . The pulling part 40 is disposed on the supporting part 20 or the connecting part 30 and can be connected with the pulling mechanism 50 .

Of course, the above-mentioned first position and second position do not limit the specific connection position, but only schematically indicate two positions separated from each other on the main shaft flange 220 .

Therefore, the barring device 100 of the embodiment of the present utility model drives the main shaft flange 220 to rotate through the supporting part 20 and the connecting part 30 connected to each other, so that the supporting arm 21 in the supporting part 20 and the connecting piece 31 in the connecting part 30 are respectively One ends are respectively connected to two positions of the main shaft flange 220 of the engine 200 spaced apart from each other, and the respective other ends of the support arm 21 and the connecting piece 31 are connected to each other. And make the supporting arm 21, the connecting piece 31 and the main shaft flange 220 form a stable polygonal structure among each other, and then the pulling part 40 connected with at least one of the supporting part 20 or the connecting part 30 is connected with the pulling mechanism 50 That is, the main shaft flange 220 of the generator 200 is dragged by the pulling mechanism 50 to pull the supporting part 20 and the connecting part 30 to drive the main shaft 210 and the rotor connected to the main shaft 210 to rotate.

As a result, the barring device 100 has a simple structure and is easy to install and disassemble. It is not necessary to set a special hanging point for the barring device 100 on the generator 200, and it only needs to adopt a simple connection structure, for example, to support the barring device 100 through a pin connection. The arm 21 is connected to the main shaft flange 220 at the first position, and the connecting member 31 is connected to the main shaft flange 220 at the second position by screw connection through the fastener. Therefore, the process of connecting the cranking device 100 to the generator 200 during the cranking operation can be simplified, thereby improving the cranking efficiency of the generator 200 .

When the turning operation is performed, the support arm 21 and the connecting member 31 are connected to each other to form an angled structure at the end away from the main shaft flange 220 . Both ends of the support arm 21 are respectively connected to the first position of the main shaft flange 220 and the connector 31, the support arm 21 plays a supporting role, and the second end 21b of the support arm 21 serves as the fulcrum of the turning device 100, so the support arm 21 bears pressure only along its length. The two ends of the connecting piece 31 are respectively connected to the second position of the support arm 21 and the main shaft flange 220, the connecting piece 31 plays a pulling role, and the first end 31a of the connecting piece 31 is used as the dragging point of the turning device 100, The connecting member 31 therefore bears tension along its length. Therefore, when the auxiliary generator 200 is cranking, the working principle of the cranking device 100 is similar to the principle of leverage, and the supporting arm 21 provides support for the connecting piece 31, and the connecting piece 31 can exert pulling force on the main shaft flange 220 while being able to Share the pressure on the support arm 21 . In this way, when the cranking device 100 assists the generator 200 to crank, the required traction force is smaller, therefore, the cranking can be performed manually, thereby saving the time and cost of the cranking operation, improving work efficiency, and simultaneously making the cranking The device 100 is not easy to be damaged, further increasing the service life of the barring device 100 .

In this embodiment, the connecting piece 31 can be a flexible piece or a rigid piece. When the connecting piece 31 is a rigid piece, it is preferable to adopt a rotational connection between the connecting piece 31, the support arm 21 and the main shaft flange 220, which can The support arm 21 only bears the pressure along its own length direction, while the connecting piece 31 only bears the tension along its own length direction, so that the cranking device 100 can be in the best force when the auxiliary generator 200 is cranking state.

Fig. 3 is a schematic top view of the use state of the turning device 101 according to another embodiment of the present invention, Fig. 4 is a schematic front view of the use state of the turning device 101 of Fig. 3, and Fig. 5 is a schematic diagram of A schematic diagram of the overall structure of the barring device 101. As shown in Fig. 3, Fig. 4 and Fig. 5, the generator 200 of the wind power generating set is connected to the transport bracket 300 for transportation before hoisting, and the generator 200 together with the transport bracket 300 is placed on the wind farm. location. The stator (not shown in the figure) of the generator 200 is fixedly connected to the transport bracket 300, and the main shaft flange 220 is fixedly connected to the rotor (not shown in the figure), so that the turning device 101 connected to the main shaft flange 220 can drive The rotor rotates relative to the stator.

In this embodiment, flange connection holes 220 a are uniformly provided on the end surface of the main shaft flange 220 of the generator 200 , and the end surface faces away from the casing 230 of the generator 200 . The cranking device 101 is connected to the main shaft flange 220 through the flange connection hole 220a, so that the pulling mechanism 50 can pull the cranking device 101 to crank the generator 200 . Moreover, in this embodiment, it is exemplarily shown that the pulling mechanism 50 is manually pulled, that is, the generator 200 is cranked manually, but the embodiment of the present invention is not limited thereto. In other embodiments, the pulling mechanism 50 may also be a towing vehicle or other equipment capable of applying traction to the cranking device 101 through the cranking device 101 to drive the generator 200 to rotate. Moreover, in this embodiment, for example, the traction part 10 is a flexible member, for example, the traction part 10 may be a rope such as a steel wire rope or a sling. Of course, the embodiment of the present invention is not limited thereto, and in other embodiments, the traction part 10 may also be a connecting rod.

According to an exemplary embodiment of the present utility model, the turning device 101 is similar to the turning device 100 in the above-mentioned embodiments, the difference is that, in this embodiment, the connecting part 30 of the turning device 101 includes a connecting piece 31 and The tie rod 32 , that is, the connecting piece 31 is indirectly connected to the second position of the main shaft flange 220 through the tie rod 32 .

6 is a schematic front view of the support portion 20 in the barring device 101 of FIG. 5 , FIG. 7 is a schematic cross-sectional view of the support portion 20 in FIG. 6 in the D-D direction, and FIG. 8 is a bottom view of the support portion 20 in FIG. 6 Schematic. As shown in FIG. 6 , FIG. 7 and FIG. 8 , in this embodiment, the supporting part 20 is used as a supporting structure, including supporting arms 21 , legs 22 and supporting brackets 23 . The support arm 21 has a first end portion 21a and a second end portion 21b away from the first end portion 21a, and an arm-shaped body is formed extending between the first end portion 21a and the second end portion 21b. In order to increase the structural strength of the support arm 21 so that the support arm 21 can play a better supporting role, the support arm 21 is made of metal materials. Further, in order to reduce the overall weight of the turning device 101 and avoid excessive pressure on the generator 200 by the turning device 101 , the support arm 21 is made of profiles, preferably aluminum profiles.

Legs 22 are arranged at the first end portion 21a of the support arm 21. In order to reduce weight, the legs 22 can also be made of profiles (such as aluminum profiles). Fig. 9 is a front structural schematic view of the leg 22 according to an embodiment of the present invention, please refer to Fig. 5 and Fig. 9 together, in this embodiment, the leg 22 has four sides, a top surface and a bottom surface (of course, Legs 22 may also have no bottom surface). Four connecting holes 22a are arranged on one of the two opposite sides, and of course other numbers of connecting holes 22a can also be set in other embodiments, correspondingly on the other side of the two opposite sides. Operation windows 22b are provided at the positions of the four connection holes 22a.

Correspondingly, a connection end surface is provided at the first end portion 21a of the support arm 21, and a corresponding number of connection holes (not shown) are provided on the connection end surface corresponding to the connection holes 22a on the side of the leg 22. Thus, when the leg 22 is connected to the support arm 21, a fastener can be used to pass through the connection hole 22a provided on the side surface of the leg 22 and the connection hole provided on the connection end surface of the support arm 21 through the operation window 22b. The leg 22 is connected to the first end portion 21a of the support arm 21 by screw connection. In addition, a through hole 22 c is opened through the leg 22 on the top end surface of the leg 22 .

10 is an enlarged schematic diagram of the local structure of part A of FIG. 3 , as shown in FIG. 3 and FIG. on the end surface of the main shaft flange 220 away from the housing 230 . And further use the pin 24 to pass through the through hole 22c provided on the leg 22 and insert it into the flange connection hole 220a at the first position of the main shaft flange 220, so that the support arm 21 can be rotatably connected to the first position of the main shaft flange 220. Location.

The whole support arm 21 can be supported by the leg 22 , so that the support arm 21 is kept parallel to the end surface of the main shaft flange 220 , and a predetermined distance can be maintained between the support arm 21 and the end surface of the main shaft flange 220 . In order to use the cranking device 101 in this embodiment to assist different types of generators 200 in cranking, when the end face 230a of the casing 230 of the generator 200 facing the main shaft flange 220 protrudes from the side of the main shaft flange 220 away from the shell When the end surface of the body 230 is formed, the support arm 21 can be supported by a predetermined height through the legs 22 to avoid interference between the second end portion 21b of the support arm 21 and the end surface 230a of the generator 200 . The aforementioned predetermined height is determined by the distance between the end face 230a of the housing 230 of the generator 200 and the end face of the main shaft flange 220 away from the housing 230, as long as the support leg 22 can support the support arm 21, avoiding the support arm 21 It is only necessary for the second end portion 21b to interfere with the end surface 230a of the casing 230 of the generator 200 .

According to an embodiment of the present invention, the support bracket 23 is arranged near the second end 21b of the support arm 21, one end of the support bracket 23 is connected to the support arm 21, and the other end extends toward the direction away from the support arm 21 to generate electricity. At the edge of the end surface 230a of the housing 230 of the machine 200, the support arm 21 is kept parallel to the end surface of the main shaft flange 220.

As shown in FIG. 5 , FIG. 6 , FIG. 7 and FIG. 8 , in this embodiment, for example, the support bracket 23 includes a support rod 231 , a jacking piece and a contact portion 233 . The contact part 233 is used as the basic support for the entire support bracket 23, including a base 233a in a thin plate structure, and the base 233a has bent edges on both sides of the plate structure, so that the orientation of the housing 230 through the two bent edges The end face 230a of the spindle flange 220 is in line contact. Therefore, the supporting arm 21 can be stably supported while reducing the overall weight of the supporting bracket 23 . Due to the harsh environment of the project site, the base 233a is preferably made of stainless steel for effective anticorrosion. In order to reduce the overall weight of the supporting bracket 23, a weight-reducing hole (as shown in FIG. 5 ) is also opened in the middle area of the base 233a.

In an optional embodiment, the supporting bracket 23 further includes a supporting plate 233b, which is a plate-like structure with a predetermined thickness and can be made of plastic, preferably nylon. Please also refer to the enlarged schematic view of the partial structure of part B in FIG. 4 shown in FIG. 11. The supporting plate 233b is attached to the bottom wall of the base 233a through one end surface along the thickness direction, so that the supporting bracket 23 can pass through the supporting plate. A contact surface is formed between the plate 233b and the end surface 230a of the generator 200 . The supporting bracket 23 forms a surface contact with the housing 230 through the supporting plate 233b, which can avoid the problem that the base 233a causes improper wear on the end surface 230a when it contacts the end surface 230a of the housing 230, and even produces indentations on the end surface 230a.

According to an optional embodiment of the present utility model, the supporting bracket 23 is movably connected with the supporting arm 21, so that the relative position along the height direction of the supporting bracket 23 between the supporting bracket 23 and the supporting arm 21 can be adjusted And/or the relative position between the support bracket 23 and the support arm 21 along the length direction of the support arm 21 can be adjusted.

As shown in FIGS. 5 and 6 , for example, in one embodiment, the support bracket 23 includes four support rods 231 , and one end of each of the four support rods 231 is threadedly connected to the base through fasteners. 233a, and the four support rods 231 are arranged in opposite pairs on the base 233a. The other ends of the four support rods 231 (ie, the ends away from the contact portion 233 ) are each movably provided with a jacking member.

In this embodiment, for example, the jacking piece is an angled connection piece 232 , and the angled connection piece 232 includes two connection surfaces perpendicularly connected to each other. A through hole is opened on one of the connection surfaces of the angled connector 232 , and a threaded structure is provided on the support rod 231 , for example, the support rod 231 may be a lead screw. The support rod 231 passes through the through hole from the end away from the contact portion 233, and the angle connector 232 can be fixed at any height position on the support rod 231 by two fasteners 234 (such as nuts) on both sides of the through hole. . The other connection surfaces of the four angular connectors 232 are opposite in pairs, so that the support arm 21 can be placed between the two opposite angular connectors 232, and the support arm 21 is supported by two pairs of opposite connection surfaces. at a position having a predetermined distance H from the bottom surface of the contact portion 233 . Thus, when using the cranking device 101 to assist different types of generators 200 in cranking, the distance between the end face 230a of the housing 230 and the end face of the main shaft flange 220 away from the housing 230 can be adjusted accordingly. The relative position of the supporting arm 21 and the supporting bracket 23 along the height direction of the supporting bracket 23 , that is, the predetermined height H is adjusted. Specifically, by simultaneously adjusting the height positions of the angled connectors 232 on the four support rods 231 , the position of the support arm 21 connected to the angled connectors 232 along the height direction of the support bracket 23 is adjusted. In order to improve the flexibility and adaptability of the turning device 101 , it can adapt to different types of generators 200 .

According to an exemplary embodiment of the present invention, the angle connectors 232 connected to the four support rods 231 are connected to the support arm 21 so as to be movable along the length direction of the support arm 21 . Please refer to Fig. 5, Fig. 6 and Fig. 7 together. In this embodiment, take a support rod 231 and an angle connecting piece 232 connected thereto as an example. As mentioned above, the angle connecting piece 232 has two connecting surfaces, wherein One connection surface is movably connected to the support rod 231 , and the other connection surface is connected to the support arm 21 , and a predetermined length L is formed between the supporting bracket 23 and the first end portion 21 a of the support arm 21 .

Exemplarily, a plurality of connecting holes are provided on the other connecting surface of the angled connector 232, and two "T"-shaped chute structures are respectively provided on the two sides of the support arm 21 connected with the angled connector 232. A slide bar 21c is movably disposed in the "T"-shaped chute, and a corresponding threaded connection hole is provided on the slide bar 21c corresponding to the position of the connection hole provided on the angle connector 232 . Thus, after the threaded connection holes on the sliding bar 21c in the support arm 21 and the connection holes on the angle connector 232 are aligned and placed, the fasteners 235 can be used to pass through the multiple connection holes provided on the angle connector 232 to tighten In the threaded connection hole provided at the sliding bar 21c, the supporting bracket 23 can be movably connected to the support arm 21 through the angled connecting piece 232 and the sliding bar 21c. That is: after connecting the angular connector 232 with the slide bar 21c, the "T"-shaped chute provided on the support arm 21 and the slide bar 21c movably arranged in the "T"-shaped chute can form a guide support The bracket 23 is a slide rail structure that moves along the length direction of the support arm 21 , so that the relative position between the support bracket 23 and the support arm 21 along the length direction of the support arm 21 can be adjusted.

Thus, when the cranking device 101 is used to assist different types of generators 200 in cranking, by adjusting the relative position between the support bracket 23 and the support arm 21 along the length direction of the support arm 21, that is, adjusting the predetermined length L, The diameters of generators 200 of different types can be adapted. Specifically, by unscrewing the fastener 235 connected to the angle connector 232, the support bracket 23 is moved along the length direction of the support arm 21, and at this time, the sliding bar 21c drives the fastener 235 at the "T" of the support arm 21. ” type chute to move. When the diameter of the corresponding generator 200 is adjusted to a predetermined distance L between the support bracket 23 and the first end 21a of the support arm 21, the angle connector 232 and the support arm 21 can be fixed to each other by the fastener 235, The support bracket 23 can stably support the support arm 21 .

In the above-mentioned embodiment, through the movable connection between the support rod 231 and the angled connector 232, the support height (namely the predetermined height H) and the support length (namely the predetermined length L) required by the support arm 21 can be adjusted correspondingly, thereby raising the disc. The flexible adaptability of vehicle device 101. However, the embodiments of the present invention are not limited thereto. In other embodiments, the barring device 101 can also adjust the predetermined height H and the predetermined length L between the support arm 21 and the support bracket 23 through other connection structures. .

Exemplarily, for adjusting the relative position between the support arm 21 and the support bracket 23 along the height direction of the support bracket 23 , through holes may also be provided on the support arm 21 along the height direction of the support bracket 23 . A threaded structure is also set on the support rod 231, and the end of the support rod 231 away from the contact portion 233 passes through the through hole of the support arm 21, so that two nuts can be used on both sides of the through hole to fix the support arm 21 on the edge of the bearing. Any position in the height direction of the bracket bracket 23. For adjusting the relative position between the support arm 21 and the support bracket 23 along the length direction of the support arm 21, it can also be set between the connecting surface of the angle connector 232 facing the support arm 21 and the side of the support arm 21. Other slide rail structures, for example, a roller type slide rail structure is provided. The support bracket 23 can slide along the length direction of the support arm 21 while ensuring the structural strength of the slide rail structure when the support bracket 23 realizes the supporting function, so as to facilitate the movement of the support bracket 23 in the length direction of the support arm 21. And ensure the overall support strength of the supporting bracket 23.

In the above embodiments, in order to support the support arm 21 so that the support arm 21 can be kept parallel to the end surface of the main shaft flange 220 away from the housing 230 , a support bracket is provided at the first end 21 a of the support arm 21 , and the support bracket provided at the first end portion 21a of the support arm 21 in the above embodiment is the leg 22, but the embodiment of the present invention is not limited thereto. In other embodiments, other support brackets can also be set at the first end portion 21a of the support arm 21, for example, the above-mentioned support bracket 23 can be set at the first end portion 21a of the support arm 21 to support the The bracket 23 is supported between the support arm 21 and the end surface of the main shaft flange 220 , and can also keep the support arm 21 and the end surface of the main shaft flange 220 parallel. At this time, the support arm 21 can be rotatably connected to the flange connection hole 220 a of the main shaft flange 220 through a rotating shaft.

FIG. 12 is a structural schematic diagram of the pulling part 40 in the barring device 101 according to an embodiment of the present invention. According to an embodiment of the present invention, the pulling part 40 is arranged on the support part 20 . As shown in FIG. 5 and FIG. 12 , exemplarily, in this embodiment, the pulling part 40 is an end connecting piece disposed at the second end 21 b of the support arm 21 . The pulling part 40 includes a cover plate 41 , a connecting plate 42 and a rib plate 43 disposed on the cover plate 41 . The cover plate 41 is provided with a plurality of connection holes, correspondingly, a connection end surface (not shown in the figure) is provided at the second end portion 21b of the support arm 21, and the connection end surface corresponds to the connection provided on the cover plate 41. The holes are provided with a corresponding number of connecting holes. Thus, the cover plate 41 can be connected to the second end portion 21 b of the support arm 21 through the connection holes provided on the support arm 21 and the cover plate 41 . The connection plate 42 and the rib plate 43 are cross-connected to each other, and when the cover plate 41 is connected to the second end portion 21b of the support arm 21 , the connection plate 42 and the rib plate 43 protrude toward the direction away from the support arm 21 . The connecting plate 42 is provided with a connecting hole 42a, so that the pulling part 10 can be connected with the pulling part 40 through the connecting hole 42a. In addition, the pulling part 40 can also be arranged on the connecting part 30 , so that the purpose of 50 pulling the generator 200 by the pulling part 40 for cranking can also be achieved.

According to an exemplary embodiment of the present utility model, as shown in FIG. 5 , the connecting part 30 includes a connecting piece 31 and a tie rod 32, wherein the connecting piece 31 has a first end 31a and a second end far away from the first end 31a 31b, the pull rod 32 also has a first end 32a and a second end 32b remote from the first end 32a. The connecting part 31 may be a flexible part or a rigid part. Exemplarily, in this embodiment, the connecting part 31 is a flexible part, which may be a rope, such as a steel wire rope, a sling, and the like. The second end portion 31b of the connecting member 31 is connected to the pulling portion 40 disposed at the second end portion 21b of the support arm 21 . Specifically, the second end portion 31b of the connecting member 31 is connected to the second end portion 21b of the support arm 21 through a shackle through a connecting hole 42a provided on the connecting plate 42 of the pulling portion 40 .

The main body of the tie rod 32 is a rod-shaped structure. In order to reduce the overall weight of the barring device 101 , the tie rod 32 can also be made of profiles (such as aluminum profiles). A fixing block 33 is disposed at the first end 32 a of the tie rod 32 , and is connected to the first position of the main shaft flange 220 through the fixing block 33 . In this embodiment, the connection mode between the pull rod 32 and the fixing block 33 is the same as the connection mode between the support arm 21 and the leg 22 in the above embodiment, so it will not be repeated here. The second end 32b of the pull rod 32 is provided with an end connector, and the second end 32b of the pull rod 32 is connected to the first end 31a of the connector 31 through a connecting hole and a shackle provided on the end connector ( The structure of the end connector is similar to that of the pulling part 40 in the above embodiment).

Exemplarily, in this embodiment, the fixing block 33 is provided with two through holes 33a, and the positions of the two through holes 33a are the same as the two adjacent flange connection holes 220a at the second position of the spindle flange 220 Correspondingly (as shown in FIG. 3 , of course, the flange connection holes 220 a on the main shaft flange 220 are generally uniformly arranged). Please refer to FIG. 13 . FIG. 13 is an enlarged schematic diagram of a partial structure of part C in FIG. 3 . As shown in FIG. 3 and FIG. 13 , the pull rod 32 can be fixedly connected to the second position of the spindle flange 220 by passing the pin 25 through the through hole 33 a and inserting into the flange connection hole 220 a.

When the turning operation is performed, the pin 24 can pass through the through hole 22c provided on the leg 22 and be inserted into the flange connection hole 220a at the first position of the main shaft flange 220, so that the support arm 21 is rotatably connected. to the first position of the spindle flange 220 . And the pin 25 passes through the through hole 33 a provided on the fixing block 33 , and the pull rod 32 is fixedly connected to the second position of the main shaft flange 220 . Then one end of the traction unit 10 is connected to the traction unit 40, and the other end of the traction unit 10 is pulled by the operator, that is, the operator pulls the barring device 101 to rotate around the generator 200 in a circumferential direction, and then can pass the The car device 101 drives the generator 200 to rotate for cranking. Certainly, the turning process of the cranking device 100 in the above-mentioned embodiment assisting the generator 200 is similar to the cranking device 101 in this embodiment, the difference is that the connecting piece 31 in the cranking device 100 of the above-mentioned embodiment Connect directly with the main shaft flange 220.

In addition, when using the cranking device 100 and the cranking device 101 of the embodiment of the utility model to assist the generator 200 to perform the cranking operation, it is also possible to walk along a straight line through other pulling mechanisms 50 (non-manual methods, such as traction vehicles). Do a pull. Taking the turning process of the turning device 101 as an example, specifically, after the turning device 101 is connected to the initial position of the main shaft flange 220 (for example, the connection position of the turning device 101 shown in FIG. 3 ), the pulling The part 10 is connected with the pulling part 40, and the pulling mechanism 50 travels a predetermined distance along a straight line (the predetermined distance is determined according to the predetermined angle that the generator 200 needs to rotate each time), driving the generator 200 to rotate a predetermined angle. Then, the pin 24 at the leg 22 and the pin 25 at the fixed block 33 are taken out, the turning device 101 is moved, and the turning device 101 is connected to the starting position of the main shaft flange 220 again, and the power generation can be dragged again. The machine 200 is rotated by a predetermined angle. In this way, the cranking operation of the generator 200 can be completed through repeated operations. Therefore, when the cranking device 101 is pulled by the other pulling mechanism 50 to assist the generator 200 to perform the cranking operation, a small footprint is also required, which further improves the flexibility and applicability of the cranking device 101 and simplifies the operation of the cranking operation. process.

In some exemplary embodiments, the length of the tie rod 32 is shorter than the length of the support arm 21 , thus, when the auxiliary generator 200 performs cranking operation, when the cranking device 101 is installed on the generator 200 , the support arm 21 A predetermined angle can be formed with the connecting piece 31 (as shown in FIG. 3 ). In order to make the components in the supporting part 20 and the connecting part 30 achieve a good fit state, that is, the supporting arm 21 plays a supporting role and bears the pressure along its length direction; the connecting part 31 plays a connecting role and bears the pulling force along its length direction ; And the pull rod 32 is used to construct the pulling point for turning the car, and bear the bending force along the circumferential direction of the main shaft flange 220 . This structure can assist the generator 200 to crank through the principle of leverage, and fully utilizes the characteristics of the bar's compression resistance and the rope's tensile resistance, and the load is reasonable. Therefore, when the auxiliary generator 200 performs the cranking operation, the required traction force is greater. Small, so that the generator 200 can be easily towed manually for cranking. The turning cost can be saved, and the operating area required for turning can be reduced.

In addition, the use of the cranking device 101 of the embodiment of the present invention can avoid the problem of increasing the complexity of the cranking operation due to the need to separately provide the hooking part for the cranking device through the generator when performing the cranking operation in the past. The barring device 101 of the utility model embodiment has good applicability. At the same time, due to the adoption of the above structure, the overall structure of the barring device 101 is simple, easy to install and disassemble, and the weight of the barring device 101 can be reduced.

In order to increase the structural strength of the tie rod 32 , for example, a reinforcing rib is provided between the fixing block 33 and the main body of the tie rod 32 , so as to ensure that the tie rod 32 can bear a relatively large bending force. In addition, as mentioned above, when the connecting member 31 is a rigid member, the connecting member 31 is rotatably connected to the second end portion 21b of the support arm 21 and the second end portion 32b of the pull rod 32 respectively. In addition, the connection between the support arm 21 and the pulling part 40 , between the connecting part 31 and the pulling part 40 , and between the connecting part 31 and the pull rod 32 are respectively connected by shackles. However, the embodiments of the present utility model are not limited thereto. In other embodiments, the components of the traction part 10, the support part 20 and the connecting part 30 can also be connected in other ways, such as through a pull ring or a hook, etc. Component connections. In addition, the connecting member 31 may also be indirectly connected to the second position of the main shaft flange 220 through other structures, such as through other connecting rods or connecting plates.

The utility model can be realized in other specific forms without departing from its spirit and essential features. Therefore, the current embodiments are to be considered in all respects as illustrative rather than restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and falls within the meanings and equivalents of the claims All changes within the range are included in the scope of the present utility model. Moreover, different technical features in different embodiments can be combined to achieve beneficial effects. Those skilled in the art should be able to understand and implement other modified embodiments of the disclosed embodiments on the basis of studying the drawings, specification and claims.

Claims (14)

1. A cranking device (100, 101) for a generator (200), the generator (200) comprising a housing (230), a rotor arranged in the housing (230), and the The main shaft (210) connected with the rotor and the main shaft flange (220) connected with the main shaft (210) are characterized in that the turning device (100, 101) includes a supporting part (20), a connecting part (30 ) and pulling part (40), wherein: The support part (20) comprises a support arm (21), the support arm (21) has a first end (21a) and a second end (21b) away from the first end (21a), the The first end (21a) of the support arm (21) is rotatably connected to the first position on the main shaft flange (220); The connecting part (30) includes a connecting piece (31), the connecting piece (31) has a first end (31a) and a second end (31b) away from the first end (31a), the The first end (31a) of the connector (31) is connected to a second position on the main shaft flange (220), the second position is spaced apart from the first position, and the connector The second end (32b) of (31) is connected to the second end (21b) of said support arm (21); and The pulling part (40) is arranged on the supporting part (20) or the connecting part (30) and can be connected with a pulling mechanism (50). 2. The barring device (100, 101) according to claim 1, characterized in that the first end (21a) of the support arm (21) and/or the first end of the connecting piece (31) The end portion (31a) is connected to the main shaft flange (220) through a flange connection hole (220a) provided on the end surface of the main shaft flange (220). 3. The barring device (100, 101) according to claim 1, characterized in that, the support part (20) further comprises a support bracket (23), and the support bracket (23) is supported from the support The bottom of the arm (21) extends away from the support arm (21), so that the support arm (21) is kept parallel to the end surface of the main shaft flange (220). 4. The barring device (100, 101) according to claim 3, characterized in that, the support bracket (23) is arranged at the first end (21a) of the support arm (21) and extends from The bottom of the support arm (21) extends away from the support arm (21) to the end face of the main shaft flange (220) and/or the support bracket (23) is arranged on the support arm ( 21) near the second end (21b) and extending from the bottom of the support arm (21) toward the direction away from the support arm (21) to the housing (230) of the generator (200) ). 5. The barring device (100, 101) according to claim 4, characterized in that, when the support bracket (23) is arranged on the support arm (21) close to the second end (21b) ), the supporting bracket (23) also includes a supporting plate (233b), and the supporting bracket (23) passes through the supporting plate (233b) and the housing (230) of the generator (200) form a contact surface. 6. The barring device (100, 101) according to claim 4, characterized in that, the supporting bracket (23) is movably connected to the supporting arm (21), so that the supporting bracket (23) can be adjusted The relative position between the bracket (23) and the support arm (21) along the height direction of the supporting bracket (23). 7. The barring device (100, 101) according to claim 6, characterized in that, the support bracket (23) comprises a base (233a) and a plurality of support rods (231), and the plurality of support rods One end of each support rod (231) in (231) is arranged on the base (233a), and the other end of each support rod (231) in the plurality of support rods (231) is respectively provided with a Each of the supporting rods (231) is an axially movable jacking piece, and the respective jacking pieces of the multiple supporting rods (231) are respectively connected to the supporting arms (21). 8. The barring device (100, 101) according to claim 4, characterized in that, the support bracket (23) is movably connected to the support arm (21), so that the support can be adjusted The relative position between the bracket (23) and the support arm (21) along the length direction of the support arm (21). 9. The barring device (100, 101) according to Claim 8, characterized in that, the support arm (21) and the support bracket (23) are connected through a slide rail structure. 10. The barring device (100, 101) according to any one of claims 1 to 9, characterized in that, the connecting part (30) further comprises a pull rod (32), and the pull rod (32) has a first end (32a) and a second end (32b) away from the first end (32a), the first end (32a) of the tie rod (32) is fixedly connected to the main shaft flange (220) At the first position, the second end (32b) of the pull rod (32) is connected to the first end (31a) of the connecting piece (31). 11. The barring device (100, 101) according to claim 10, characterized in that the length of the pull rod (32) is shorter than the length of the support arm (21), so that the connecting piece (31) A predetermined angle is formed with the support arm (21). 12. The barring device (100, 101) according to claim 10, characterized in that, the connecting piece (31) is a rigid piece, and the connecting piece (31) is respectively connected to the support arm (21) The second end (21b) is rotatably connected with the second end (32b) of the pull rod (32). 13. The barring device (100, 101) according to Claim 10, characterized in that the connecting member (31) is a flexible member. 14. The barring device (100, 101) according to Claim 10, characterized in that at least one of the support arm (21) and the tie rod (32) is a profile.