CN217913788U - Assembly limiting tool for spindle bearing without positioning structure - Google Patents
Assembly limiting tool for spindle bearing without positioning structure Download PDFInfo
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- CN217913788U CN217913788U CN202221927425.3U CN202221927425U CN217913788U CN 217913788 U CN217913788 U CN 217913788U CN 202221927425 U CN202221927425 U CN 202221927425U CN 217913788 U CN217913788 U CN 217913788U
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- top plate
- main shaft
- limiting tool
- face
- circular ring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model provides a spacing frock of assembly for main shaft bearing does not have location structure, its characterized in that: the limiting tool is formed by splicing more than two parts; the limiting tool formed after splicing comprises an annular upper top plate and an annular lower top plate, and the inner diameter of the upper top plate is smaller than the outer diameter of the circular ring; the supporting rods are welded on the upper top plate and the lower top plate; a plurality of through holes are formed in the lower top plate, and the number and the positions of the through holes correspond to those of screw holes formed in the impeller locking disc; the main shaft and the impeller locking disk are vertically placed on an assembly base surface after being assembled; the connecting bolt penetrates through a through hole formed in the lower top plate and then is screwed into a screw hole formed in the impeller locking disc, so that the limiting tool is fixedly connected with the impeller locking disc; the circular ring and the main shaft bearing are sleeved on the shaft neck of the main shaft, the lower end face of the circular ring is tightly attached to the upper end face of the upper top plate, and the lower end face of the main shaft bearing is tightly attached to the upper end face of the circular ring. The utility model discloses install the axial mounted position of effective control ring sum bearing when main shaft axle footpath at main shaft bearing and ring.
Description
Technical Field
The utility model belongs to the technical field of a wind-powered electricity generation gear box structure and specifically relates to a spacing frock of assembly for main shaft bearing does not have location structure.
Background
Wind power is used as an efficient, safe and renewable clean energy source and is generally adopted in China, and in recent years, wind power generation is rapidly developed.
For the structural design of partial main shaft 1 and main shaft bearing 4 of the wind power gear box, the main shaft bearing 4 is sleeved on the shaft neck of the main shaft 1, a circular ring 3 is arranged below the main shaft bearing 4 and is also sleeved on the shaft neck of the main shaft 1, the main shaft bearing 4 and the circular ring 3 are in interference fit with the main shaft 1, but the shaft neck of the main shaft 1, the circular ring 3 and the main shaft bearing 4 are not designed with shaft neck shoulder stops (as shown in figure 1), and the design belongs to a floating design, so that the bearing is installed without auxiliary axial positioning control, but has the requirement of axial technical dimension (as the mark height H in figure 1: H) 1 The distance H from the lower end face of the main shaft bearing 4 to the upper end face of the impeller locking disk 11 2 The distance from the lower end surface of the ring 3 to the upper end surface of the impeller lock disk 11).
The installation position is only controlled by the fitting surface size to install the main shaft bearing 4 and the ring 3 in the prior art, the ring 3 below the main shaft bearing 4 lacks the axial positioning support, the ring 3 expands after being heated during installation and is in clearance fit with the shaft neck of the main shaft 1, so the sleeve drying process can fall according to the dead weight of the ring, and the position installation requirement of a drawing is not met.
The main shaft bearing 4 is also in the installation, and after heating, the inner circle of the main shaft bearing 4 is heated and expanded, and is in clearance fit with the shaft neck, so the sleeve drying process can fall down according to the dead weight to impact the upper end surface of the circular ring 3, and the position installation requirement of a drawing is not met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a spacing frock of assembly for main shaft bearing does not have location structure, the shortcoming of prior art is solved to its purpose, and the axial mounted position of effective control ring sum bearing when main shaft bearing and ring are installed in the main shaft diameter of axle.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a spacing frock of assembly for main shaft bearing does not have location structure which characterized in that:
the limiting tool is formed by splicing more than two parts;
the limiting tool formed after splicing comprises an annular upper top plate and an annular lower top plate, and the inner diameter of the upper top plate is smaller than the outer diameter of the circular ring;
the upper ends of more than three support rods are welded on the upper top plate, and the lower ends of the support rods are welded on the lower top plate;
a plurality of through holes are formed in the lower top plate, and the number and the positions of the through holes correspond to those of screw holes formed in the impeller locking disc;
the main shaft and the impeller locking disk are vertically placed on an assembly base surface after being assembled;
the connecting bolt penetrates through a through hole formed in the lower top plate and then is screwed into a screw hole formed in the impeller locking disc, so that the limiting tool is fixedly connected with the impeller locking disc;
the circular ring and the main shaft bearing are sleeved on the shaft neck of the main shaft, the lower end face of the circular ring is tightly attached to the upper end face of the upper top plate, and the lower end face of the main shaft bearing is tightly attached to the upper end face of the circular ring.
The limiting tool is composed of two symmetrical parts.
The external diameter of going up the roof is less than the external diameter of roof down, and the bracing piece slope sets up.
The upper end of the supporting rod is welded on the outer side wall of the upper top plate, and the lower end of the supporting rod is welded on the upper end face of the lower top plate.
Through holes arranged on the lower top plate and screw holes arranged on the impeller locking disk are uniformly distributed in a circumferential manner.
The utility model discloses an useful part lies in:
1) The tool is simple, the structure is simple, and the assembly is easy;
2) The occupied space is small, the existing conditions are fully utilized, and the installation is convenient;
3) The problem that the installation positions of the circular ring and the main shaft bearing cannot be guaranteed is solved, the assembly accuracy is effectively improved, and the installation positions of parts are guaranteed to meet the design technical requirements;
4) The tooling structure and the strength meet the requirements, and the part can be effectively supported without deformation.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
FIG. 1 is an assembly view of the main shaft bearing and the ring of the present invention;
FIG. 2 is a diagram illustrating the usage of the present invention;
fig. 3 is a top view of the tool of the present invention.
Detailed Description
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, it is obvious that the drawings in the description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other embodiments can be obtained without inventive efforts. To facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 2 and 3:
the utility model discloses to: the main shaft bearing 4 is designed to be a floating end, no retaining shoulder is arranged on the shaft neck of the main shaft 1, the main shaft bearing 4 and the circular ring 3 are designed to have no positioning structure, the axial installation size of the main shaft bearing 4 has axial requirements, and the main shaft bearing 4 and the circular ring 3 are installed on the shaft neck of the main shaft 1 through a heating mode drying sleeve.
The limiting tool 2 is composed of two symmetrical parts A and B, and the splicing line of the two parts is L-L.
The upper ends of four inclined support rods 23 uniformly distributed on the circumference are welded on the outer side wall of the upper top plate 21, and the lower ends are welded on the upper end face of the lower top plate 22.
The lower top plate 22 is provided with 10 through holes 221 which are uniformly distributed on the circumference, and the number and the positions of the through holes correspond to those of the screw holes 111 which are uniformly distributed on the circumference and are formed on the impeller locking disk 11.
During actual processing, the limiting tool 2 is firstly processed into a whole and then cut into two parts along the L-L line, so that the A part and the B part of the limiting tool 2 can be detached and taken out from the space between the lower end face of the circular ring 3 and the upper end face of the impeller locking disc 11 after the main shaft bearing 4 and the circular ring 3 are assembled.
After being assembled, the main shaft 1 and the impeller locking disk 11 are vertically placed on an assembly base surface, the large end surface of the main shaft 1 is arranged below, and the main shaft bearing 4 and the circular ring 3 are axially placed beside to wait for installation of a drying sleeve. The main shaft bearing 4 needs to be sleeved on the shaft neck of the main shaft 1, the circular ring 3 is designed and installed below the main shaft bearing 4 and is also sleeved on the shaft neck of the main shaft 1, and the section of the shaft neck of the main shaft 1 has no retaining shoulder, so that the main shaft bearing 4 is equivalent to a structure without axial positioning.
Before the main shaft bearing 4 is installed, the limiting tool 2 is installed on the impeller locking disk 11, and the connecting bolt 20 penetrates through the through hole 221 formed in the lower top plate 22 and then is screwed into the screw hole 111 formed in the impeller locking disk 11, so that the limiting tool 2 is connected and fixed with the impeller locking disk 11.
The ring 3 is heated and then sleeved on the shaft neck of the main shaft 1 and is mounted above the limiting tool 2, the lower end face of the ring 3 is tightly attached to the upper end face of the upper top plate 21, and the inner diameter of the upper top plate 21 is smaller than the outer diameter of the ring 3, so that the upper end face of the upper top plate 21 supports the ring 3.
The main shaft bearing 4 is heated and then sleeved on the shaft neck of the main shaft 1 and is installed above the circular ring 3, the lower end face of the main shaft bearing 4 is tightly attached to the upper end face of the circular ring 3, and the planeness of the inner ring end face of the main shaft bearing 4 is checked by using a dial indicator to be within a required technical range, so that the installation positions of the main shaft bearing 4 and the circular ring 3 can be effectively ensured; after the main shaft bearing 4 and the ring 3 are cooled to the room temperature, the interference fit between the main shaft bearing 4 and the ring 3 ensures that the main shaft bearing and the ring do not fall down, the connecting bolt 20 is disassembled, and the A part and the B part of the limiting tool 2 are disassembled and taken out from the space between the lower end face of the ring 3 and the upper end face of the impeller locking disc 11.
Design requirement of limiting tool 2Ensuring certain strength, supporting the weight of the main shaft bearing 4 and the circular ring 3 without deformation, and having height dimension equal to the distance H from the lower end surface of the originally designed circular ring 3 to the upper end surface of the impeller locking disk 11 2 Keep unanimous to the effectual mounted position who guarantees that ring 3 heats after drying the cover, and then guarantees the mounted position requirement after main shaft bearing 4 heats the cover, finally guarantees the accuracy and the reliability of assembly, accords with original drawing design technical requirement.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "upper", "lower", "inner", "outer", "bottom", and the like as used herein are used in the description to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The utility model provides a spacing frock of assembly for main shaft bearing does not have location structure which characterized in that: the limiting tool is formed by splicing more than two parts; the limiting tool formed after splicing comprises an annular upper top plate and an annular lower top plate, wherein the inner diameter of the upper top plate is smaller than the outer diameter of the circular ring; the upper ends of more than three support rods which are uniformly distributed on the circumference are welded on the upper top plate, and the lower ends of the support rods are welded on the lower top plate; a plurality of through holes are formed in the lower top plate, and the number and the positions of the through holes correspond to those of screw holes formed in the impeller locking disc; the main shaft and the impeller locking disk are vertically placed on an assembly base surface after being assembled; the connecting bolt penetrates through a through hole formed in the lower top plate and then is screwed into a screw hole formed in the impeller locking disc, so that the limiting tool is fixedly connected with the impeller locking disc; the circular ring and the main shaft bearing are sleeved on the shaft neck of the main shaft, the lower end face of the circular ring is tightly attached to the upper end face of the upper top plate, and the lower end face of the main shaft bearing is tightly attached to the upper end face of the circular ring.
2. The assembly limiting tool for the spindle bearing non-positioning structure according to claim 1, wherein: the limiting tool is composed of two symmetrical parts.
3. The assembly limiting tool for the spindle bearing non-positioning structure according to claim 1, characterized in that: the outer diameter of the upper top plate is smaller than that of the lower top plate, and the supporting rod is obliquely arranged.
4. The assembly limiting tool for the spindle bearing non-positioning structure according to claim 1, wherein: the upper end of the supporting rod is welded on the outer side wall of the upper top plate, and the lower end of the supporting rod is welded on the upper end face of the lower top plate.
5. The assembly limiting tool for the spindle bearing non-positioning structure according to claim 1, wherein: through holes arranged on the lower top plate and screw holes arranged on the impeller locking disk are uniformly distributed in a circumferential manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927425.3U CN217913788U (en) | 2022-07-25 | 2022-07-25 | Assembly limiting tool for spindle bearing without positioning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221927425.3U CN217913788U (en) | 2022-07-25 | 2022-07-25 | Assembly limiting tool for spindle bearing without positioning structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217913788U true CN217913788U (en) | 2022-11-29 |
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ID=84148498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221927425.3U Active CN217913788U (en) | 2022-07-25 | 2022-07-25 | Assembly limiting tool for spindle bearing without positioning structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217913788U (en) |
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2022
- 2022-07-25 CN CN202221927425.3U patent/CN217913788U/en active Active
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