CN210615899U

CN210615899U - Lathe mandrel for machining rotating shaft of wind driven generator

Info

Publication number: CN210615899U
Application number: CN201921406556.5U
Authority: CN
Inventors: 葛贵文
Original assignee: Wuxi Shunbang Machinery Co Ltd
Current assignee: Wuxi Shunbang Machinery Co Ltd
Priority date: 2019-08-27
Filing date: 2019-08-27
Publication date: 2020-05-26
Anticipated expiration: 2029-08-27

Abstract

The utility model relates to a pivot processing field discloses a lathe dabber for aerogenerator pivot processing, its technical scheme main points are including the dabber, the dabber includes first fixed axle, with first fixed axle fixed connection's fixing device, with fixing device fixed connection's second fixed axle, fixing device becomes the round platform shape, first fixed axle, fixing device and the coaxial setting of second fixed axle, fixing device includes the fixed plate of fixed connection in first fixed axle one end, with fixed plate fixed connection's axle body, fixed connection keeps away from the limiting plate of fixed plate one end at the axle body, limiting plate and second fixed axle fixed connection, the axle body and first fixed axle, the second fixed axle is coaxial, be equipped with fixed subassembly on the fixed plate, be equipped with the reinforcement subassembly on the axle body, be equipped with spacing subassembly on the limiting plate. The utility model has the advantages of can realize the location of the great part of volume.

Description

Lathe mandrel for machining rotating shaft of wind driven generator

Technical Field

The utility model relates to a mechanical equipment for aerogenerator pivot processing, in particular to lathe dabber for aerogenerator pivot processing.

Background

As shown in fig. 1 and 2, the rotating shaft 1 is a part of a wind power generator, the rotating shaft 1 is a hollow structure with openings at two ends, the two ends are circular with different cross-sectional sizes, wherein a limiting disc 11 is arranged at the inner side of the end with a larger cross-sectional area, a plurality of threaded holes 111 which are uniformly distributed are arranged in one circle of the limiting disc 11, and a fixed disc 12 is arranged at the end with a smaller internal cross-sectional area of the rotating shaft 1; when the rotating shaft 1 is machined, the rotating shaft 1 is sleeved on the mandrel, the rotating shaft 1 and the mandrel rotate simultaneously, and relative motion cannot be generated, so that the surface machining of the rotating shaft 1 by workers is facilitated, and the machined mandrel can be conveniently detached from the rotating shaft 1.

At present, Chinese patent with publication number CN208991794U discloses a self-centering mandrel and lathe,

the cross-sectional area inside the shaft sleeve is gradually reduced from one end to the other end, the end part of the shaft core is inserted into the shaft sleeve from the larger end of the cross-sectional area of the shaft sleeve, the end part of the shaft core is provided with a pushing piece used for pushing the shaft sleeve to move, in use, the self-centering core shaft is inserted into a hole formed in a part, then the pushing piece is used for pushing the shaft block, so that the shaft sleeve moves towards the shaft core along the axial direction to be far away from the pushing piece end, the inner peripheral wall of the shaft sleeve can be extruded from the shaft core at the moment, the shaft sleeve can expand, gaps between the shaft sleeve and the part are reduced, interference fit is formed, the part is positioned, and the part can rotate along with the rotation of the self-centering core shaft and can be.

Although the self-centering mandrel and the lathe can position the part without knocking the part by tools such as a hammer and the like, the part can be prevented from being damaged; in the practical use process, however, the shaft sleeve is tightly attached to the shaft core through only one bolt, so that on one hand, the fixing mode easily causes insufficient extrusion force between the shaft sleeve and the shaft core and unstable fixation; on the other hand, the shaft core is only suitable for some small parts, and cannot realize mechanical fixation for shaft sleeves with large volumes.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lathe dabber for processing of aerogenerator pivot has the advantage that can realize the location of the great part of volume.

The above technical purpose of the present invention can be achieved by the following technical solutions:

a lathe mandrel for machining a rotating shaft of a wind driven generator comprises a mandrel, wherein the mandrel comprises a first fixed shaft, a fixing device fixedly connected with the first fixed shaft and a second fixed shaft fixedly connected with the fixing device, the fixing device is in a circular truncated cone shape, and the first fixed shaft, the fixing device and the second fixed shaft are coaxially arranged;

fixing device includes fixed connection at the fixed plate of first fixed axle one end, with fixed plate fixed connection's axle body, fixed connection keep away from the limiting plate of fixed plate one end at the axle body, limiting plate and second fixed axle fixed connection, the axle body is coaxial with first fixed axle, second fixed axle, be equipped with fixed subassembly on the fixed plate, be equipped with the reinforcement subassembly on the axle body, be equipped with spacing subassembly on the limiting plate.

Through adopting above-mentioned technical scheme, during processing the pivot, embolia the less one end of dabber cross section from the great one end of pivot cross section, with the whole cover of pivot outside the dabber, later utilize spacing subassembly on the fixed plate and the fixed subassembly on the limiting plate to fix the position of dabber and pivot simultaneously to the location of realization counter shaft.

Further, fixed subassembly is including setting up the fixed slot in the fixed plate periphery, dismantling the solid fixed ring of being connected with the fixed slot, still be equipped with the indirect evenly distributed's of size locating hole on the fixed slot, the axis direction of locating hole is parallel with the axis direction of fixed plate, gu be equipped with the fixed orifices that corresponds with the locating hole on the fixed ring, run through in locating hole and the fixed orifices and be connected with fixing bolt.

Through adopting above-mentioned technical scheme, utilize fixing bolt to fix solid fixed ring in the periphery of fixed plate, after the dabber was emboliaed in the pivot, the fixed disk was contradicted with solid fixed ring's periphery wall, utilizes the frictional force between solid fixed ring periphery wall and the fixed disk to further realize the location to the countershaft.

Further, solid fixed ring is the round platform shape, gu fixed ring's lateral surface contradicts with the inboard inclined plane of fixed disk.

Through adopting above-mentioned technical scheme, solid fixed ring's periphery sets up to the inclined plane of certain angle, has increased the area of contact between solid fixed ring and the fixed disk to the frictional force between solid fixed ring of increase and the fixed disk, the further stable location of countershaft.

Further, gu be equipped with a plurality of stress holes on the fixed ring, the stress hole includes circular port and bar hole, the circular port sets up on solid fixed ring, the bar hole extends to solid fixed ring's the edge outside.

Through adopting above-mentioned technical scheme, utilize setting up of stress hole to separate into a plurality of parts with solid fixed ring, after dabber and pivot support tightly each other, gu fixed ring can be with the extrusion force that the pivot produced on a plurality of parts of solid fixed ring for gu fixed ring rises to open, is favorable to supporting tightly of solid fixed ring and pivot, and prevents solid fixed ring extrusion deformation.

Furthermore, the extending directions of two adjacent strip-shaped holes are opposite.

Through adopting above-mentioned technical scheme, because when the countershaft location, solid fixed ring receives the extrusion force that comes from the dabber simultaneously, and the opening direction can reduce the extrusion force that comes from the dabber when solid fixed ring state of expanding towards the bar hole of dabber, makes solid fixed ring difficult emergence damage.

Furthermore, the reinforcing assembly comprises a reinforcing plate fixedly arranged on the shaft body and a plurality of reinforcing columns which are perpendicular to the axis of the shaft body and inserted into the shaft body, the reinforcing plate and the reinforcing columns are uniformly arranged in the circumferential direction of the shaft body, the length direction of the reinforcing plate is parallel to the length direction of the shaft body, one end of the reinforcing plate in the length direction is fixedly connected with the fixing plate, and the other end of the reinforcing plate is fixedly connected with the limiting plate.

Through adopting above-mentioned technical scheme, when the dabber drives the pivot and rotates, the axle body of dabber receives the stress that comes from the pivot, can weaken the stress that the axle body received through setting up of reinforcing plate and reinforcement post, prevents that the dabber from taking place deformation.

Furthermore, a reinforcing rib is arranged at one end, close to the limiting plate, of the shaft body, and is fixedly connected with the limiting plate, and the reinforcing rib is located between two adjacent reinforcing plates.

Through adopting above-mentioned technical scheme, can reduce the dabber and drive the pivot when rotating, the stress that the limiting plate received prevents that the limiting plate from taking place deformation.

Furthermore, the limiting assembly comprises a limiting hole formed in the limiting plate and a locking bolt arranged on the limiting plate in a penetrating mode, and the locking bolt penetrates through the limiting plate and is sleeved with a nut.

By adopting the technical scheme, the limiting plate and the limiting plate are fixed together by the locking bolt, so that the relative position of the rotating shaft and the core shaft is fixed, and the positioning of the rotating shaft is further realized.

Furthermore, set up a plurality of first bar groove along first fixed axle length direction on the first fixed axle, first bar groove runs through first fixed axle along the depth direction, first bar groove evenly sets up along the periphery wall of first fixed axle.

By adopting the technical scheme, the stress of the rotating shaft on the mandrel can be further reduced, and the mandrel is prevented from being broken when the mandrel drives the rotating shaft to rotate.

Further, set up a plurality of second bar grooves along second fixed axle length direction on the second fixed axle, second bar groove runs through the second fixed axle along the depth direction, second bar groove evenly sets up along the periphery wall of second fixed axle.

Through adopting above-mentioned technical scheme, the setting of second bar-shaped groove can reduce the dabber and drive when rotating, and the dabber receives comes from the stress of pivot, prevents that the dabber from taking place deformation.

To sum up, the utility model discloses following beneficial effect has:

1. the rotating shaft is entirely sleeved outside the mandrel through the arrangement of the mandrel, and the relative positions of the mandrel and the rotating shaft are fixed simultaneously by utilizing the limiting component on the fixing plate and the fixing component on the limiting plate, so that the positioning of the rotating shaft is realized;

2. through the setting of strengthening the subassembly on the dabber, when the dabber drives the pivot and rotates, the stress that the dabber received is effectively dispersed in the setting of a plurality of reinforcing plates on the dabber to make the dabber be difficult for taking place deformation.

Drawings

FIG. 1 is a schematic view showing an overall structure of a rotary shaft in the related art;

FIG. 2 is a schematic view of a prior art structure for showing the larger cross-sectional area of the shaft;

FIG. 3 is a schematic view showing the overall structure of the mandrel according to the embodiment;

FIG. 4 is a schematic view showing a sectional structure of a mandrel used in the embodiment;

FIG. 5 is a schematic diagram of an enlarged structure for embodying the portion A in FIG. 4 in the embodiment;

FIG. 6 is a schematic structural diagram of an embodiment of a fixing ring;

fig. 7 is a schematic view of the overall structure for embodying the matching of the spindle and the rotating shaft in the embodiment.

In the figure, 1, a rotating shaft; 11. a limiting disc; 111. a threaded hole; 12. fixing the disc; 21. a first fixed shaft; 211. a first bar-shaped groove; 22. a second fixed shaft; 221. a second strip groove; 3. a fixing device; 31. a shaft body; 311. reinforcing ribs; 32. a fixing plate; 33. a limiting plate; 4. a fixing assembly; 41. fixing grooves; 42. positioning holes; 43. a fixing ring; 431. a stress hole; 4311. a circular hole; 4312. a strip-shaped hole; 433. a fixing hole; 51. a limiting hole; 52. locking the bolt; 6. a reinforcement assembly; 61. a reinforcing plate; 62. a reinforcement column; 7. and (5) fixing the bolt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a lathe mandrel for processing a rotating shaft of a wind driven generator comprises a mandrel as shown in figure 3, wherein the mandrel comprises a first fixing shaft 21, a fixing device 3 fixedly connected with the first fixing shaft 21 and a second fixing shaft 22 fixedly connected with the fixing device 3, the fixing device 3 is in a circular truncated cone shape, and the first fixing shaft 21, the fixing device 3 and the second fixing shaft 22 are coaxially arranged;

as shown in fig. 3 and 4, the fixing device 3 includes a fixing plate 32 fixedly connected to one end of the first fixing shaft 21, a shaft body 31 fixedly connected to the fixing plate 32, and a position limiting plate 33 fixedly connected to one end of the shaft body 31 far from the fixing plate 32, the position limiting plate 33 is fixedly connected to the second fixing shaft 22, the shaft body 31 is coaxial with the first fixing shaft 21 and the second fixing shaft 22, the fixing plate 32 is provided with a fixing component 4, the shaft body 31 is provided with a reinforcing component 6, and the position limiting plate 33 is provided with a position limiting component; the mandrel is sleeved with the end, with the larger cross section, of the rotating shaft 1 from the end of the first fixing shaft 21, the fixing component 4 on the fixing plate 32 is utilized to enable one end of the mandrel to be abutted against one side of the fixing plate 12 in the rotating shaft 1, then the position between the limiting plate 33 and the limiting plate 11 is fixed through the limiting component, meanwhile, the stress from the rotating shaft 1, which is received by the mandrel, of the reinforcing component 6 on the shaft body 31 can be reduced, the rotating shaft 1 and the mandrel are favorably kept static relatively, and therefore the rotating shaft 1 can be positioned.

As shown in fig. 3 and 4, in order to reduce the gap between the mandrel and the rotating shaft 1 and achieve the relative position stability between the mandrel and the rotating shaft, the fixing assembly 4 on the fixing plate 32 includes a fixing ring 43 disposed at the periphery of the fixing plate 32 and detachably connected to the fixing groove 41, the fixing groove 41 is further provided with positioning holes 42 whose sizes are indirectly and uniformly distributed, the axial direction of the positioning hole 42 is parallel to the axial direction of the fixing plate 32, the fixing ring 43 is provided with a fixing hole 433 corresponding to the positioning hole 42, the fixing groove 41 and the fixing ring 43 are connected to the fixing hole 433 through a fixing bolt 7 penetrating through the positioning hole 42, and are sleeved with a nut; the fixing ring 43 is fixed on the periphery of the fixing plate 32 by the fixing bolt 7, and when the rotating shaft 1 is sleeved outside the mandrel, the rotating shaft 1 is further positioned by the friction force generated by the interference of the fixing ring 43 and the fixing plate 12.

As shown in fig. 1, 2 and 3, the friction force preventing the fixed ring 43 from abutting against the fixed disk 12 is small, which causes the relative sliding between the spindle and the rotating shaft 1, the fixed ring 43 is arranged in a truncated cone shape, and the outer side surface of the fixed ring 43 abuts against the inner side inclined surface of the fixed disk 12; the inclined plane of the peripheral wall of the fixing ring 43 increases the contact area between the fixing ring 43 and the fixing disc 12, so that the friction force between the fixing ring 43 and the fixing disc 12 is increased, relative rest between the spindle and the rotating shaft 1 is ensured, and the positioning of the rotating shaft 1 is realized.

As shown in fig. 1 and 5, in order to prevent the mandrel from driving the rotating shaft 1 to rotate, the fixing ring 43 is deformed by the extrusion force generated by the mandrel, a plurality of stress holes 431 are formed in the fixing ring 43, each stress hole 431 includes a circular hole 4311 and a strip-shaped hole 4312, the circular hole 4311 is arranged on the fixing ring 43, the strip-shaped hole 4312 extends to the outer side of the edge of the fixing ring 43, and the extending directions of two adjacent strip-shaped holes 4312 are opposite; on a plurality of bar holes 4312 extended to solid fixed ring 43 inside and outside wall, separate into a plurality of parts with solid fixed ring 43, the extrusion force that the dabber produced when can supporting tightly pivot 1 and dabber each other decomposes a plurality of parts of solid fixed ring 43, is favorable to solid fixed ring 43 and the supporting of pivot 1 tight, and prevents that solid fixed ring 43 from receiving the extrusion force that the dabber produced and breaking.

As shown in fig. 1 and 3, the shaft body 31 is prevented from being deformed by stress generated by the rotating shaft 1, the reinforcing assembly 6 includes a reinforcing plate 61 fixedly arranged on the shaft body 31, and a plurality of reinforcing columns 62 inserted into the shaft body 31 perpendicular to the axis of the shaft body 31, the reinforcing plates 61 and the reinforcing columns 62 are uniformly arranged along the circumferential direction of the shaft body, the length direction of the reinforcing plate 61 is parallel to the length direction of the shaft body 31, one end of the reinforcing plate 61 in the length direction is fixedly connected with the fixing plate 32, and the other end is fixedly connected with the limiting plate 33; when the spindle drives the spindle 1 to rotate, the reinforcing plate 61 on the spindle can effectively disperse the stress of the spindle 1 to the spindle, and the spindle body 31 is prevented from being broken by the reinforcing column 62.

As shown in fig. 1 and 3, because the mandrel structure is large in size, it is not easy to be damaged or replaced, a plurality of first bar-shaped grooves 211 are formed in the first fixing shaft 21 along the length direction of the first fixing shaft 21, the first bar-shaped grooves 211 penetrate through the first fixing shaft 21 along the depth direction, the first bar-shaped grooves 211 are uniformly arranged along the peripheral wall of the first fixing shaft 21, a plurality of second bar-shaped grooves 221 are formed in the second fixing shaft 22 along the length direction of the second fixing shaft 22, the second bar-shaped grooves 221 penetrate through the second fixing shaft 22 along the depth direction, the second bar-shaped grooves 221 are uniformly arranged along the peripheral wall of the second fixing shaft 22, the arrangement of the first bar-shaped grooves 211 can disperse stress from the rotating shaft 1 when the mandrel drives the rotating shaft 1 to rotate, and therefore the mandrel is prevented from.

As shown in fig. 1, 3 and 6, the end of the rotating shaft 1 with a larger cross-sectional area is further ensured to be fixed with the mandrel, so that the limiting component comprises a limiting hole 51 arranged on the limiting plate 33 and a locking bolt 52 penetrating through the limiting plate 33, and the locking bolt 52 simultaneously penetrates through the limiting disc 11 and is sleeved with a nut; the rotating shaft 1 is pushed to slide towards the end with the larger cross section area of the mandrel, the fixed disc 12 is tightly abutted to the fixed ring 43, one end of the rotating shaft 1 is fixed, and then the other end of the rotating shaft 1 is fixed with the mandrel by using the locking bolt 52, so that the positioning of the rotating shaft 1 is ensured.

As shown in fig. 1 and 3, since the radius of the limiting plate 33 is large, when the spindle drives the rotating shaft 1 to rotate, the limiting plate 33 is stressed by the rotating shaft 1 and is easily deformed, so that a reinforcing rib 311 is arranged at one end of the shaft body 31 close to the limiting plate 33, the reinforcing rib 311 is fixedly connected with the limiting plate 33, the reinforcing rib 311 is located between two adjacent reinforcing plates 61, and the arrangement of the reinforcing rib 311 can effectively reduce the stress on the limiting plate 33 and prevent the limiting plate 33 from breaking.

The specific implementation process comprises the following steps: when the rotating shaft 1 is positioned, firstly, the fixing ring 43 is fixed on the periphery of the fixing plate 32 on the mandrel by using the fixing bolt 7, then, the end with the larger cross section of the rotating shaft 1 is sleeved into the mandrel from one end of the first fixing shaft 21, the rotating shaft 1 is pushed to slide towards the end with the larger cross section of the mandrel, the outer side surface of the fixing ring 43 is abutted against the inner side surface of the fixing disc 12, meanwhile, the locking bolt 52 penetrates through the limiting plate 33 to be matched and locked with the limiting disc 1 and a nut, and the position between the limiting plate and the limiting disc 1 is fixed, so that the relative position between the mandrel and the rotating shaft 1 is fixed, the positioning of the rotating shaft 1 is realized, and in order to keep the integrity of.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a lathe dabber for aerogenerator pivot processing, includes the dabber, its characterized in that: the mandrel comprises a first fixing shaft (21), a fixing device (3) fixedly connected with the first fixing shaft (21) and a second fixing shaft (22) fixedly connected with the fixing device (3), the fixing device (3) is in a circular truncated cone shape, and the first fixing shaft (21), the fixing device (3) and the second fixing shaft (22) are coaxially arranged;

fixing device (3) including fixed connection at fixed plate (32) of first fixed axle (21) one end, keep away from limiting plate (33) of fixed plate (32) one end with fixed plate (32) fixed connection's axle body (31), fixed connection at axle body (31), limiting plate (33) and second fixed axle (22) fixed connection, axle body (31) are coaxial with first fixed axle (21), second fixed axle (22), be equipped with fixed subassembly (4) on fixed plate (32), be equipped with on axle body (31) and strengthen subassembly (6), be equipped with spacing subassembly on limiting plate (33).

2. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 1, wherein: fixed subassembly (4) are including setting up fixed slot (41) in fixed plate (32) periphery, dismantle solid fixed ring (43) of being connected with fixed slot (41), still be equipped with locating hole (42) of the indirect evenly distributed of size on fixed slot (41), the axis direction of locating hole (42) is parallel with the axis direction of fixed plate (32), be equipped with fixed orifices (433) that correspond with locating hole (42) on solid fixed ring (43), it is connected with fixing bolt (7) to run through in locating hole (42) and fixed orifices (433).

3. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 2, wherein: the fixing ring (43) is in a round table shape, and the outer side surface of the fixing ring (43) is abutted to the inner side inclined surface of the fixing disc (12).

4. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 3, wherein: fixed ring (43) are last to be equipped with a plurality of stress holes (431), stress hole (431) include circular port (4311) and bar hole (4312), circular port (4311) set up on fixed ring (43), bar hole (4312) extend to the edge outside of fixed ring (43).

5. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 4, wherein: the extending directions of two adjacent strip-shaped holes (4312) are opposite.

6. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 1, wherein: the reinforcing assembly (6) comprises a reinforcing plate (61) fixedly arranged on the shaft body (31) and a plurality of reinforcing columns (62) which are perpendicular to the axis of the shaft body (31) and inserted into the shaft body (31), the reinforcing plate (61) and the reinforcing columns (62) are uniformly arranged along the circumferential direction of the shaft body, the length direction of the reinforcing plate (61) is parallel to the length direction of the shaft body (31), one end of the reinforcing plate (61) in the length direction is fixedly connected with the fixing plate (32), and the other end of the reinforcing plate is fixedly connected with the limiting plate (33).

7. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 6, wherein: one end, close to the limiting plate (33), of the shaft body (31) is provided with a reinforcing rib (311), the reinforcing rib (311) is fixedly connected with the limiting plate (33), and the reinforcing rib (311) is located between two adjacent reinforcing plates (61).

8. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 1, wherein: the limiting assembly comprises a limiting hole (51) formed in the limiting plate (33) and a locking bolt (52) arranged on the limiting plate (33) in a penetrating mode, and the locking bolt (52) penetrates through the limiting plate (11).

9. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 1, wherein: set up a plurality of first bar groove (211) along first fixed axle (21) length direction on first fixed axle (21), first bar groove (211) run through first fixed axle (21) along the degree of depth direction, first bar groove (211) evenly set up along the periphery wall of first fixed axle (21).

10. The lathe mandrel for machining the rotating shaft of the wind driven generator as claimed in claim 1, wherein: set up a plurality of second bar grooves (221) along second fixed axle (22) length direction on second fixed axle (22), second bar groove (221) run through second fixed axle (22) along the direction of depth, second bar groove (221) evenly set up along the periphery wall of second fixed axle (22).