Turning gear

Abstract

The utility model provides a barring gear, the barring gear is used for inside and outside barring in the shafting assembly process, the shafting comprises an inner shaft barrel and an outer shaft barrel rotatably sleeved on the outer side of the inner shaft barrel, the barring gear comprises: a main support having a main support surface; the rotary support is arranged on the main supporting surface of the main support; the inner shaft support is provided with an inner shaft supporting surface for supporting the inner shaft barrel and is detachably mounted to be fixed relative to the main support; wherein the rotary support comprises a fixed ring and a movable ring which are coaxially arranged, the fixed ring can be connected with the main support, the movable ring can rotate relative to the fixed ring, and the movable ring is constructed to be selectively connected with one of the outer shaft barrel and the inner shaft barrel so that the one can rotate around the axis. According to the turning gear, the shafting can be turned inside and outside in the shafting assembling process, and the turning gear can be suitable for shafting of various specifications.

Description

Technical Field

[0001] This utility model relates to the technical field of shaft assembly, and specifically to a turning device for internal and external turning during shaft assembly. Background Technology

[0002] In a wind turbine generator set, the shaft system typically includes an inner shaft (e.g., the main shaft), an outer shaft (e.g., a bearing housing), and a transmission assembly (e.g., a bearing) located between the inner and outer shafts to allow them to rotate relative to each other.

[0003] Typically, during the assembly of the spindle, bearing, and bearing housing, it is necessary to rotate the spindle and bearing housing several times relative to each other to ensure that the rollers in the bearing fit against the inner and outer raceways and that the grease is evenly distributed, thereby meeting the assembly requirements and facilitating the assembly of subsequent components. Utility Model Content

[0004] The purpose of this invention is to provide a turning device that can turn the shaft system internally and externally during the shaft system assembly process.

[0005] According to one aspect of the present invention, a turning device is provided for inner and outer turning during shaft assembly. The shaft system includes an inner shaft cylinder and an outer shaft cylinder rotatably sleeved on the outside of the inner shaft cylinder. The turning device includes: a main support having a main support surface; a rotary support disposed on the main support surface of the main support; and an inner shaft support having an inner shaft support surface for supporting the inner shaft cylinder and detachably mounted to be fixed relative to the main support. The rotary support includes a fixed ring and a moving ring coaxially arranged. The fixed ring can be connected to the main support, and the moving ring can rotate relative to the fixed ring. The moving ring is configured to selectively connect one of the outer shaft cylinder and the inner shaft cylinder so that the one of them can rotate about an axis.

[0006] Preferably, the turning device may further include an adapter plate, which is detachably mounted on the moving coil for connecting one of the outer shaft cylinder and the inner shaft cylinder.

[0007] Preferably, the inner shaft support may include a support portion for forming an inner shaft support surface and a connecting portion extending axially relative to the support portion, the support portion being located above the adapter plate, and the connecting portion being used for fixed connection with the main support, wherein the adapter plate may protrude outward relative to the support portion in a radial direction perpendicular to the axis.

[0008] Preferably, the turning device may further include a connecting member for connecting the outer shaft cylinder to the slewing support when the outer shaft cylinder is turned.

[0009] Preferably, the turning device may further include a blocking member, which is installed on the main support and extends from the main support surface toward the outer shaft cylinder beyond the bottom surface of the outer shaft cylinder when the inner shaft cylinder is turned, so as to block the rotation of the outer shaft cylinder.

[0010] Preferably, the moving ring can be an inner ring, and the fixed ring can be an outer ring, rotatably fitted on the radially outer side of the moving ring, and the fixed ring can be fixed to the main support surface.

[0011] Preferably, the turning device may further include a drive assembly connected to the slewing bearing to drive the moving coil of the slewing bearing to rotate about the axis relative to the main bearing and the inner shaft bearing.

[0012] Preferably, the moving ring can be formed as an internal gear ring, the driving assembly can include a driving gear, the main support can be annular, and the driving gear can be disposed on the radial inner side of the main support and mesh with the internal gear ring.

[0013] Preferably, the inner shaft support may include a support portion for forming an inner shaft support surface and a connecting portion extending axially relative to the support portion, the connecting portion being disposed radially inside the main support, the connecting portion being a cylindrical body having an opening on its sidewall, and the drive assembly being configured to pass through the opening to connect to the slewing support.

[0014] Preferably, the turning device may further include a positioning component, which is detachably mounted on the inner shaft support for connecting the inner shaft cylinder to the inner shaft support, or detachably mounted on the moving ring for connecting the inner shaft cylinder to the moving ring.

[0015] The rotating device according to this utility model is suitable for rotating the shaft system internally and externally during the shaft system assembly process.

[0016] In addition, the turning device according to this utility model can be applied to various specifications of shaft systems, so it can be used as a general tooling, which can avoid redesigning the turning tooling or purchasing new tooling for new shaft systems, thereby saving tooling costs and reducing the idle time of the turning device, thus saving floor space.

[0017] In addition, the turning device according to this utility model has a simple structure, which facilitates the selection and manufacturing of parts, and simplifies and optimizes the assembly process, thereby improving production efficiency. Attached Figure Description

[0018] The above and other objects and features of this application will become clearer from the following description of embodiments of this application taken in conjunction with the accompanying drawings, wherein:

[0019] Figure 1 This is a schematic cross-sectional perspective view of the turning device according to the present invention;

[0020] Figure 2 It is to utilize Figure 1 A schematic diagram of the turning device turning the outer cylinder of the shaft system;

[0021] Figure 3 It is to utilize Figure 1 A schematic diagram of the turning device turning the inner cylinder of the shaft system;

[0022] Figure 4 It is shown Figure 3 A schematic diagram showing some details.

[0023] Icon labels:

[0024] 10-Turning wheel device; 110-Main support; 120-Slewing support; 121-Inner ring; 122-Outer ring; 130-Inner shaft support; 131-Support part; 132-Connecting part; 140-Drive assembly; 141-Drive gear; 150-Positioning component; 160-Adapter plate; 170-Connecting component; 180-Blocking component; H1-Opening;

[0025] 20-Inner shaft cylinder;

[0026] 30 - Outer shaft cylinder. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical concept of this utility model, specific embodiments of this utility model will be clearly, completely, and in detail described below with reference to the accompanying drawings. It should be understood that the described embodiments are merely some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Those skilled in the art will understand the specific meaning of the terms used in this invention based on the specific circumstances.

[0029] It will be understood that although terms such as "first" and "second" may be used herein to describe various elements, these elements will not be limited by these terms. Rather, these terms are used only to distinguish one element from another. Therefore, without departing from the teachings of the exemplary embodiments described herein, the first element referred to as the first element may also be referred to as the second element.

[0030] For ease of description, the terms "inner", "outer", "upper", and "lower" used below are consistent with the inner, outer, upper, and lower directions of the accompanying drawings, but do not limit the structure of this utility model.

[0031] Additionally, throughout the specification, when an element is described as being “set on” another element, “connected to” another element, or “bonded to” another element, the element may be directly “set on” the other element, directly “connected to” the other element, or directly “bonded to” the other element, or there may be one or more other elements in between.

[0032] In wind turbine generator sets, during the assembly of the shaft system, it is usually necessary to rotate the inner and outer shaft sleeves to ensure that the shaft system meets the assembly process requirements. However, there is currently no universal rotating tooling suitable for performing both inner and outer rotating (or internal and external rotating) of the shaft system.

[0033] Furthermore, traditional turning gear methods can only meet the needs of a single product. However, with the increasing size of wind turbine generators and the development of multi-model designs, traditional turning gear methods and tooling cannot meet the assembly process requirements of new products. In order to adapt to the universal assembly of multiple models and ensure that the bearing clearance meets the process technology requirements, it is necessary to replace the turning gear tooling and redesign the tooling, resulting in the original turning gear tooling being idle and wasted.

[0034] This invention aims to provide a universal tooling device for internal and external turning of shafts during shaft assembly. Furthermore, this invention also aims to provide a turning device compatible with shaft systems of various machine models.

[0035] In the following text, reference will be made to Figures 1 to 4 Description of a turning device according to a utility model.

[0036] Figure 1 This is a schematic cross-sectional perspective view of the turning gear device according to the present invention. Figure 2 It is to utilize Figure 1 A schematic diagram of the turning device turning the outer cylinder of the shaft system. Figure 3 It is to utilize Figure 1 A schematic diagram of the turning device turning the inner cylinder of the shaft system. Figure 4 It is shown Figure 3A schematic diagram showing some details.

[0037] exist Figure 2 and Figure 3 The diagram illustrates a partial structure of the shaft system. Specifically, the shaft system may include an inner shaft sleeve 20 and an outer shaft sleeve 30 rotatably fitted outside the inner shaft sleeve 20. Although not shown, the shaft system may also include a transmission assembly that rotatably connects the inner shaft sleeve 20 and the outer shaft sleeve 30. In a wind turbine generator set, as an example, the inner shaft sleeve 20 may be a main shaft, the outer shaft sleeve 30 may be a bearing housing, and the transmission assembly may be a bearing, but is not limited thereto. The inner shaft sleeve 20 may also be a shaft or a similar structure, and the outer shaft sleeve 30 may also be a shaft chamber or a similar structure.

[0038] like Figures 1 to 4 As shown, the turning device 10 according to this utility model includes: a main support 110 having a main support surface; a rotary support 120 disposed on the main support surface of the main support 110; and an inner shaft support 130 having an inner shaft support surface for supporting an inner shaft cylinder 20, and being detachably installed to be fixed relative to the main support 110; wherein, the rotary support 120 includes a fixed ring and a moving ring coaxially disposed, the fixed ring being able to be connected to the main support 110, the moving ring being able to rotate relative to the fixed ring, and the moving ring being configured to selectively connect one of the outer shaft cylinder 30 and the inner shaft cylinder 20 so that said one rotates about an axis.

[0039] Therefore, the turning device 10 according to this utility model can be used to turn the outer shaft cylinder 30 or the inner shaft cylinder 20 of the shaft system during the shaft system assembly process by installing or removing the inner shaft support 130, and can be used for internal and external turning during the shaft system assembly process.

[0040] Specifically, such as Figure 1 As shown, the main support 110 has an axially extending body and radially extending flanges at both ends of the body. By providing the flanges, the area at both ends of the main support 110 along its axial direction can be increased to improve support stability. The upper end face of the main support 110 can form a main support surface. As an example, the body of the main support 110 can be cylindrical, but is not limited to this. Furthermore, from... Figure 1 Looking at the upper part of the chart, the main support level at 110 can be generally seen as a ring shape.

[0041] A slewing support 120 may be disposed on the main support surface of the main support 110. As an example, the slewing support 120 is generally annular in shape and may be axially disposed between the main support 110 and the inner shaft support 130. The slewing support 120 may include a fixed ring and a moving ring coaxially arranged, the moving ring being rotatable relative to the fixed ring. The fixed ring may be connected to the main support 110, and the moving ring may selectively connect to one of the outer shaft cylinder 30 and the inner shaft cylinder 20, allowing said one to rotate about an axis.

[0042] As an example, the slewing support 120 can be a bearing structure or other structure capable of relative rotation. When the slewing support 120 is a bearing structure, the moving ring of the slewing support 120 can be an outer or inner ring, and the fixed ring of the slewing support 120 can be an inner or outer ring. When the moving ring of the slewing support 120 is an outer ring, the drive assembly 140, which will be described later, can be mounted radially outward of the main support 110. Preferably, as... Figure 4 As shown, the moving ring of the slewing support 120 is the inner ring 121, and the fixed ring of the slewing support 120 is the outer ring 122 rotatably fitted radially outside the moving ring. The fixed ring is fixed to the main support surface of the main support 110. In this case, the drive assembly 140, which will be described later, can be installed radially inside the main support 110, thereby reducing the overall volume of the turning gear 10. In this embodiment, a structure is shown where the moving ring of the slewing support 120 is the inner ring 121 and the fixed ring of the slewing support 120 is the outer ring 122. Here, this structure will be used to describe the components and structure of the turning gear 10.

[0043] like Figure 4 As shown, the rotary support 120 may include an inner ring 121 as a moving ring and an outer ring 122 as a fixed ring. The outer ring 122 may be fixed to the main support surface (i.e., the upper surface) of the main support 110 to remain fixed relative to the main support 110. The inner ring 121 is rotatably connected to the outer ring 122. In addition, the rotary support 120 may also include rollers disposed between the inner ring 121 and the outer ring 122 to allow the inner ring 121 to rotate relative to the outer ring 122. Therefore, according to this embodiment, the inner ring 121 of the rotary support 120 can rotate about an axis relative to the main support 110 and the inner shaft support 130, and can selectively connect one of the outer shaft cylinder 30 and the inner shaft cylinder 20 to allow one of them to rotate about an axis.

[0044] The inner shaft support 130 can be sleeved onto the inner side of the main support 110 from the upper side. For example... Figure 1 As shown, the inner shaft support 130 may include a support portion 131 forming an inner shaft support surface and a connecting portion 132 extending axially relative to the support portion 131. The connecting portion 132 can be used for fixed connection with the main support 110. Figure 1 As shown, as an example, the connecting portion 132 can be a cylindrical body, but is not limited thereto. In this invention, the inner shaft support 130 is mounted to be fixed relative to the main support 110. There are no particular limitations on the method of fixing. For example, the main support 110 may have a support platform that protrudes radially inward, and the connecting portion 132 of the inner shaft support 130 may be mounted on this support platform to be fixed relative to the main support 110. Optionally, the main support 110 and the inner shaft support 130 may be mounted on a turning table or base.

[0045] Additionally, the slewing bearing 120 is located radially outside the connecting portion 132 of the inner shaft bearing 130. As an example, the connecting portion 132 can be a cylindrical body with an opening H1 on its side wall. The opening H1 can penetrate the side wall of the connecting portion 132 radially, so that the drive assembly 140, which will be described later, passes through the opening H1 to connect to the slewing bearing 120, i.e., to the inner ring 121 of the slewing bearing 120.

[0046] In addition, the turning device 10 according to this utility model may also include a drive assembly 140, a positioning member 150, an adapter plate 160, a connecting member 170, and a blocking member 180.

[0047] Specifically, such as Figure 1 As shown, drive assembly 140 can be connected to slewing bearing 120 to drive the moving ring (e.g., inner ring 121) of slewing bearing 120 to rotate about an axis relative to main bearing 110 and inner shaft support 130. Figure 4 As shown, as an example, the drive assembly 140 may include a drive gear 141, the inner ring 121 of the rotary support 120 may be formed as an internal gear ring, the drive gear 141 is disposed on the radial inner side of the main support 110 and meshes with the inner ring 121 as an internal gear ring, so that the inner ring 121 can be driven to rotate.

[0048] Additionally, the drive assembly 140 may also include a drive mechanism (not shown in detail) connected to the drive gear 141. As an example, the drive mechanism of the drive assembly 140 may be a speed reducer. Furthermore, the drive assembly 140 may be connected to the slewing support 120 through an opening H1 formed in the connection portion 132 of the inner shaft support 130.

[0049] The positioning member 150 is used to connect the inner shaft cylinder 20 to one of the inner shaft support 130 and the slewing support 120. The positioning member 150 may be detachably mounted on the inner shaft support 130 for connecting the inner shaft cylinder 20 to the inner shaft support 130, or detachably mounted on the moving ring of the slewing support 120 for connecting the inner shaft cylinder 20 to the moving ring. As an example, the positioning member 150 may be a positioning pin. The turning gear 10 may include two or more positioning members 150 to ensure that the inner shaft cylinder 20 is coaxial with the turning gear 10.

[0050] When the inner shaft cylinder 20 is mounted on the inner shaft support 130, different shaft systems can be adapted by changing the position of the positioning member 150 on the inner shaft support 130. When the inner shaft cylinder 20 is mounted on the slewing support 120 or the adapter plate 160, different shaft systems can be adapted by changing the position of the positioning member 150 on the slewing support 120 or the adapter plate 160. Therefore, the turning device 10 according to this utility model can be compatible with the shaft systems of various models by replacing or changing the positioning member 150, for example, the shaft systems of various models of wind turbine generators or different shaft systems of wind turbine generators.

[0051] The adapter plate 160 can be detachably mounted on the moving ring of the slewing bearing 120 for connecting one of the outer shaft cylinder 30 and the inner shaft cylinder 20. As an example, the adapter plate 160 can be detachably mounted on the surface of the moving ring of the slewing bearing 120 opposite to the main support surface of the main support 110 (i.e., Figure 1 On the upper surface of the moving ring of the slewing support 120, one of the outer shaft cylinder 30 and the inner shaft cylinder 20 is connected so that one of them can rotate about an axis. In addition, there is a gap between the lower surface of the adapter plate 160 and the upper surface of the moving ring of the slewing support 120, thereby preventing the adapter plate 160 from interfering with the moving ring during rotation.

[0052] like Figure 1 As shown, since the support portion 131 of the inner shaft support 130 is located above the adapter plate 160, the adapter plate 160 can be configured to protrude radially outward relative to the inner shaft support 130 in order to prevent any impact on the connection of the outer shaft cylinder 30 to the adapter plate 160. When the adapter plate 160 is mounted on the moving ring of the rotary support 120, the positioning member 150 can be detachably mounted on the adapter plate 160, thereby indirectly mounted on the moving ring of the rotary support 120 for connecting the inner shaft cylinder 20 to the moving ring.

[0053] Although not shown in detail, the adapter plate 160 can be mounted on the inner ring 121 of the slewing bearing 120, so that the adapter plate 160 can rotate with the inner ring 121 as it rotates. As an example, the adapter plate 160 can have an annular shape, but is not limited thereto, and the shape of the adapter plate 160 can be selected according to the structure of the shaft system.

[0054] Furthermore, in the turning device 10 according to this utility model, the adapter plate 160 can be installed on the slewing support 120 by a simple connection method and can be removed from the slewing support 120. Therefore, the size of the adapter plate 160 is not particularly limited, but the required size of the adapter plate 160 can be determined according to the model or size of the shaft system.

[0055] Therefore, the turning device 10 according to this utility model can be easily adapted to different shaft systems by changing some of its components. Thus, it can be used as a universal tooling, avoiding the need to redesign the turning tooling or purchase new tooling for new shaft systems, thereby saving tooling costs and reducing the idle time of the turning device 10, thus saving floor space.

[0056] like Figure 2 As shown, the connecting member 170 is used to connect the outer shaft cylinder 30 to the slewing support 120 when the outer shaft cylinder 30 is rotated, that is, to connect the outer shaft cylinder 30 to the slewing support 120 when the slewing support 120 is connected to the outer shaft cylinder 30. More specifically, when the rotating device 10 is used to rotate the outer shaft cylinder 30 (i.e., external rotating), the connecting member 170 can connect the outer shaft cylinder 30 to the moving ring (e.g., the inner ring 121) of the slewing support 120 or to the adapter plate 160 connected to the moving ring, so that the outer shaft cylinder 30 rotates as the moving ring of the slewing support 120 rotates. As an example, the connecting member 170 may have an arm shape, that is, a rod shape, but is not limited thereto. In addition, the connecting member 170 may be configured to have an adjustable axial length to accommodate different shaft systems.

[0057] like Figure 3 As shown, the blocking member 180 is used to prevent the outer shaft cylinder 30 from rotating when the inner shaft cylinder 20 is rotated. When rotating the inner shaft cylinder 20, the blocking member 180 can be mounted on the main support 110 and extend from the main support surface toward the outer shaft cylinder 30 beyond its bottom surface to prevent rotation of the outer shaft cylinder 30. More specifically, when the rotating device 10 is used to rotate the inner shaft cylinder 20 (i.e., internal rotating), the blocking member 180 can be disposed on the upper flange of the main support 110 and can extend upward to partially overlap with the outer shaft cylinder 30, thereby preventing rotation of the outer shaft cylinder 30. The blocking member 180 can be disposed on the radially outer edge of the main support surface of the main support 110 to prevent interference with the slewing support 120. The blocking member 180 is similar to the connecting member 170 described above; for example, it can be rod-shaped, with both ends fixedly connected to the main support 110 and the outer shaft cylinder 30, respectively. The specific shape of the blocking member 180 is not limited here, as long as it can securely connect the main support 110 and the outer shaft cylinder 30. In addition, the blocking member 180 can be configured to have an adjustable axial length to accommodate different shaft systems.

[0058] Therefore, the turning device 10 according to the present invention can connect some components of the shaft system through a connecting member 170 with a simple structure so that the components can rotate, or it can connect some components of the shaft system through a blocking member 180 with a simple structure to block the components from rotating, thus reducing the difficulty of assembling the shaft system with the turning device 10.

[0059] Furthermore, the turning device 10 according to this utility model can stably support the shaft system and can be reliably connected to the shaft system, thus preventing and improving the installation of the turning process and reducing safety risks.

[0060] To facilitate understanding of the turning device 10 according to an embodiment of the present invention, reference is made below. Figures 2 to 3 The process of turning the shaft system using the turning device 10 according to the utility model will be explained.

[0061] like Figure 2 As shown, in utilizing Figure 1 During the turning process of the turning device 10 on the outer shaft sleeve 30 of the shaft system, the inner shaft sleeve 20 of the shaft system is first connected to the inner shaft support 130 and the positioning member 150 of the turning device 10, so that the inner shaft sleeve 20 is coaxial with the turning device 10. Then, the outer shaft sleeve 30 of the shaft system is installed, and the outer shaft sleeve 30 is connected to the moving ring of the slewing support 120 using the connecting member 170. Specifically, the moving ring of the slewing support 120 is equipped with an adapter plate 160, so the outer shaft sleeve 30 is connected to the adapter plate 160 mounted on the moving ring of the slewing support 120 using the connecting member 170, so that the outer shaft sleeve 30 is connected to the moving ring of the slewing support 120 through the connecting member 170 and the adapter plate 160. After that, the drive assembly 140 is started, which drives the moving ring of the slewing support 120 to rotate, thereby driving the outer shaft sleeve 30 connected to the moving ring to rotate, and stopping after reaching the specified number of revolutions. During the assembly of shaft system components and turning gear 10, the horizontal loading process can be carried out using a crane or with the aid of automated equipment.

[0062] like Figure 3 As shown, in utilizing Figure 1 During the turning process of the inner shaft sleeve 20 of the shaft system by the turning device 10 shown, the inner shaft support 130 of the turning device 10 is disassembled, and the inner shaft sleeve 20 of the shaft system is connected to the moving ring of the slewing support 120 and the positioning member 150, so that the inner shaft sleeve 20 is coaxial with the turning device 10. Specifically, an adapter plate 160 is installed on the moving ring of the slewing support 120, so the inner shaft sleeve 20 of the shaft system is installed on the adapter plate 160 on the moving ring of the slewing support 120, so that the inner shaft sleeve 20 is connected to the moving ring of the slewing support 120 through the adapter plate 160. Then, the outer shaft sleeve 30 of the shaft system is fitted and connected to the blocking member 180, so that the blocking member 180 prevents the outer shaft sleeve 30 from rotating. Therefore, the rotation of the outer shaft sleeve 30 can be prevented when the inner shaft sleeve 20 is turned. Then, the drive assembly 140 is started, which drives the moving coil of the slewing support 120 to rotate, thereby driving the inner shaft cylinder 20 connected to the moving coil to rotate, and automatically stops after reaching the specified number of revolutions.

[0063] Therefore, the turning device 10 according to this utility model can selectively turn the outer shaft cylinder 30 of the shaft system or the inner shaft cylinder 20 of the shaft system by installing or removing the inner shaft support 130. That is to say, the turning device 10 according to this utility model is suitable for turning the shaft system both internally and externally.

[0064] As described above, the rotating device according to this utility model is suitable for rotating the shaft system internally and externally during the shaft system assembly process.

[0065] In addition, the turning device according to this utility model can be applied to shaft systems of various specifications, so it can be used as a general tooling. This avoids the need to redesign the turning tooling or purchase new tooling for new shaft systems, thereby saving tooling costs and reducing the idle time of the turning device, thus saving floor space.

[0066] In addition, the turning device according to this utility model can have a simple structure, which facilitates the selection and manufacturing of parts, and simplifies and optimizes the assembly process, thereby improving production efficiency.

[0067] The specific embodiments of this utility model have been described in detail above. Although some embodiments have been shown and described, those skilled in the art should understand that these embodiments can be combined, modified, and improved without departing from the principles and spirit of this utility model as defined by the claims (for example, different technical features of this utility model can be combined to obtain new technical solutions). These combinations, modifications, and improvements should also be within the protection scope of this utility model.

Claims

1. A turning gear for inner and outer turning during shafting assembly, the shafting comprising an inner shaft sleeve (20) and an outer shaft sleeve (30) rotatably sleeved outside the inner shaft sleeve (20), characterized in that, The disc wheel device (10) comprises: a main support (110) having a main support surface; a slewing support (120) arranged on the main support surface of the main support (110); and an inner shaft support (130) having an inner shaft support surface for supporting the inner shaft cylinder (20) and being detachably mounted to be fixed relative to the main support (110); wherein the slewing support (120) comprises a fixed ring coaxially arranged and a movable ring rotatable relative to the fixed ring, the movable ring being configured to selectively connect one of the outer shaft cylinder (30) and the inner shaft cylinder (20) to rotate around the axis.

2. A turning gear as claimed in claim 1, characterised in that The disc wheel device (10) further comprises an adapter plate (160) detachably mounted on the movable ring for connecting one of the outer shaft cylinder (30) and the inner shaft cylinder (20).

3. A turning gear as claimed in claim 2, characterised in that The inner shaft support (130) comprises a support portion (131) for forming the inner shaft support surface and a connecting portion (132) extending axially relative to the support portion (131), the support portion (131) being located above the adapter plate (160), and the connecting portion (132) being used for fixed connection with the main support (110), wherein the adapter plate (160) protrudes outward relative to the support portion (131) in a radial direction perpendicular to the axis.

4. The turning gear of claim 1, wherein, The disc wheel device (10) further comprises a connecting member (170) for connecting the outer shaft cylinder (30) to the slewing support (120) when disc wheel is performed on the outer shaft cylinder (30).

5. The turning gear of claim 1, wherein, The disc wheel device (10) further comprises a blocking member (180) for being mounted on the main support (110) and extending from the main support surface towards the outer shaft cylinder (30) beyond the bottom surface of the outer shaft cylinder (30) when disc wheel is performed on the inner shaft cylinder (20), so as to block rotation of the outer shaft cylinder (30).

6. A turning gear according to any one of claims 1 to 5, characterised in that, The movable ring is an inner ring (121), and the fixed ring is an outer ring (122) rotatably sleeved on the radial outer side of the movable ring, and the fixed ring is fixed to the main support surface.

7. A turning gear as claimed in claim 6, characterised in that The disc wheel device (10) further comprises a driving assembly (140) connected to the slewing support (120) to drive the movable ring of the slewing support (120) to rotate around the axis relative to the main support (110) and the inner shaft support (130).

8. The disc wheel device according to claim 7, wherein the movable ring is formed as an inner ring gear, the driving assembly (140) comprises a driving gear (141), the main support (110) is annular, and the driving gear (141) is arranged on the radial inner side of the main support (110) and meshes with the inner ring gear.

9. A turning gear as claimed in claim 8, characterised in that The inner shaft support (130) comprises a support part (131) for forming an inner shaft support surface and a connecting part (132) extending axially relative to the support part (131), the connecting part (132) being arranged at the radially inner side of the main support (110), the connecting part (132) being a cylindrical body, the side wall of the cylindrical body being provided with an opening (H1), the driving assembly (140) being configured to pass through the opening (H1) to be connected to the slewing support (120).

10. A turning gear according to any one of claims 1 to 5, characterised in that, The turning gear device (10) further comprises a positioning member (150) which is detachably mounted on the inner shaft support (130) for connecting the inner shaft cylinder (20) to the inner shaft support (130), or is detachably mounted on the moving ring for connecting the inner shaft cylinder (20) to the moving ring.

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