CN113953814B - Mounting tool and mounting method for supporting plate nut - Google Patents
Mounting tool and mounting method for supporting plate nut Download PDFInfo
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- CN113953814B CN113953814B CN202010703732.2A CN202010703732A CN113953814B CN 113953814 B CN113953814 B CN 113953814B CN 202010703732 A CN202010703732 A CN 202010703732A CN 113953814 B CN113953814 B CN 113953814B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
- B23P19/062—Pierce nut setting machines
- B23P19/063—Deforming the nut only
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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 invention relates to a mounting tool of a supporting plate nut, comprising: the device comprises a positioning plate, a positioning base, a lifting screw, a plurality of brackets and a mounting screw; the positioning plate is suitable for being connected with the rear mounting edge of the turbine shaft, and a plurality of mounting holes are formed in the turbine shaft; the positioning base is positioned below the positioning plate; the lifting screw rod is suitable for being connected with the positioning plate and the positioning base and is suitable for adjusting the distance between the positioning base and the positioning plate; the plurality of brackets are movably arranged on the positioning base and are suitable for bearing the nuts suitable for supporting the plates; be suitable for the mounting screw to be suitable for and carry out the flaring to being suitable for the layer board nut, be suitable for the layer board nut to be fixed in being suitable for the mounting hole through being suitable for the flaring.
Description
Technical Field
The invention relates to a mounting tool for a splint nut, which can improve the mounting quality and the assembly efficiency of the splint nut and has simple structure and lower cost.
Background
In order to solve the problem that the nut is difficult to install in a narrow space, the rear end shaft center installation edge of the low-pressure turbine shaft adopts a supporting plate nut structure, and the supporting plate nut is installed on the installation edge in advance. FIG. 1 is a cross-sectional view of a turbine shaft and pallet nut. Referring to fig. 1, during installation, the supporting plate nut 2 is placed in the installation hole 11 from the inner side of the turbine shaft 1, the end face of the supporting plate nut 2 is tightly attached to the installation edge of the installation hole 11, and then the head of the supporting plate nut 2 is expanded into a bell mouth 21 and tightly attached to the conical mouth of the installation hole 11.
However, the diameter of the inner cavity at the rear end of the low scroll shaft is small, the installation operation space is narrow, a centering device is lacked in a common installation tool, the assembly efficiency is low, the installation angle is difficult to control, and the supporting plate nut is easy to scrap.
In view of the above, an installation tool capable of improving the installation quality and the assembly efficiency of the pallet nut is important.
Disclosure of Invention
The invention aims to provide a mounting tool for a splint nut, which can improve the mounting quality and the assembly efficiency of the splint nut, and has simple structure and lower cost.
The present invention provides a mounting tool for a pallet nut, which comprises: the device comprises a positioning plate, a positioning base, a lifting screw, a plurality of brackets and a mounting screw; the positioning plate is suitable for being connected with a rear mounting edge of a turbine shaft, and a plurality of mounting holes are formed in the turbine shaft; the positioning base is positioned below the positioning plate; the lifting screw is connected with the positioning plate and the positioning base and is suitable for adjusting the distance between the positioning base and the positioning plate; the brackets are movably arranged on the positioning base and are suitable for bearing the supporting plate nuts; the mounting screw is suitable for flaring the support plate nut, and the support plate nut is fixed in the mounting hole through the flaring.
In an embodiment of the invention, the brackets include a bearing plate and a push rod connected to the bearing plate, and the bearing plate is adapted to bear the pallet nut.
In an embodiment of the present invention, the positioning plate is provided with a plurality of guiding grooves, the positioning base is provided with a plurality of sliding grooves corresponding to the plurality of guiding grooves, the push rod is adapted to move along the plurality of guiding grooves, and the bearing plate is adapted to move along the plurality of sliding grooves.
In an embodiment of the present invention, the positioning device further includes a positioning nut disposed on the positioning plate and screwed with the lifting screw, and the positioning nut is adapted to control the lifting screw to move.
In an embodiment of the invention, a first spigot is arranged on a rear mounting edge of the turbine shaft, a second spigot corresponding to the first spigot is arranged on a lower surface of the positioning plate, and the positioning plate is connected with the rear mounting edge of the turbine shaft through the first spigot and the second spigot.
In an embodiment of the present invention, the turbine shaft further includes a positioning pin, a plurality of first positioning holes are formed on the rear mounting edge of the turbine shaft, at least two second positioning holes are formed on the edge of the positioning plate, and the positioning pin fixes the positioning plate to the rear mounting edge of the turbine shaft through the at least two second positioning holes and the plurality of first positioning holes.
In an embodiment of the present invention, the positioning plate is further provided with a plurality of through holes corresponding to the plurality of guide grooves, and the mounting screw is adapted to pass through the plurality of through holes to flare the nut of the supporting plate.
In an embodiment of the present invention, a tapered portion is provided at one end of the mounting screw, and the mounting screw flares the pallet nut through the tapered portion.
In an embodiment of the invention, the cone portion has an external thread and the pallet nut has an internal thread, the mounting screw being adapted to be screwed into at least a portion of the inside of the pallet nut through the external thread and the internal thread to flare the pallet nut.
Another aspect of the present invention provides a method of installing a pallet nut using the above installation tool, comprising the steps of: connecting the positioning plate on the rear mounting edge of the turbine shaft; placing a plurality of pallet nuts on a plurality of brackets, respectively; the distance between the positioning base and the positioning plate is adjusted through the lifting screw rod, so that the plurality of supporting plate nuts are positioned below the plurality of mounting holes; rotating the positioning plate to enable the supporting plate nuts to be respectively aligned with the mounting holes in the circumferential direction; moving the plurality of brackets to axially align the plurality of pallet nuts with the plurality of mounting holes, respectively; adjusting the distance between the positioning base and the positioning plate through the lifting screw rod to enable at least one part of the supporting plate nuts to be located in the mounting holes respectively; and flaring the plurality of supporting plate nuts through mounting screws.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following remarkable advantages:
the mounting tool for the supporting plate nuts can place the supporting plate nuts in the mounting holes of the turbine shaft through the brackets arranged on the positioning base, and then sequentially expand the supporting plate nuts through the mounting screws, so that the mounting quality and the assembling efficiency of the supporting plate nuts can be improved, the structure is simple, and the cost is low.
Drawings
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below, wherein:
FIG. 1 is a schematic cross-sectional view of a turbine shaft and a pallet nut;
FIG. 2 is a schematic view of a pallet nut installation tool according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a pallet nut installation tool according to an embodiment of the present invention;
FIG. 4 is a schematic view of a positioning base and a plurality of brackets of a mounting tool for a pallet nut according to an embodiment of the present invention;
FIG. 5 is a schematic view of a positioning plate of a mounting tool for a back nut according to an embodiment of the present invention;
FIG. 6 is a schematic view of the flare of an installation tool for a pallet nut according to an embodiment of the present invention;
fig. 7 is a flowchart of a method for installing a pallet nut according to an embodiment of the invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments disclosed below.
As used in this application and the appended claims, the terms "a," "an," "the," and/or "the" are not intended to be inclusive in the singular, but rather are intended to be inclusive in the plural unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that steps and elements are included which are explicitly identified, that the steps and elements do not form an exclusive list, and that a method or apparatus may include other steps or elements.
In describing the embodiments of the present invention in detail, the cross-sectional views illustrating the structure of the device are not enlarged partially in a general scale for convenience of illustration, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
For convenience in description, spatial relational terms such as "below," "beneath," "below," "under," "over," "upper," and the like may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that these terms of spatial relationship are intended to encompass other orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary words "below" and "beneath" can encompass both an orientation of up and down. Other orientations of the device are possible (rotated 90 degrees or at other orientations) and the spatial relationship descriptors used herein should be interpreted accordingly. Further, it will also be understood that when a layer is referred to as being "between" two layers, it can be the only layer between the two layers, or one or more intervening layers may also be present.
In the context of this application, a structure described as having a first feature "on" a second feature may include embodiments in which the first and second features are formed in direct contact, and may also include embodiments in which additional features are formed in between the first and second features, such that the first and second features may not be in direct contact.
It will be understood that when an element is referred to as being "on," "connected to," "coupled to" or "contacting" another element, it can be directly on, connected or coupled to, or contacting the other element or intervening elements may be present. In contrast, when an element is referred to as being "directly on," "directly connected to," "directly coupled to" or "directly contacting" another element, there are no intervening elements present. Similarly, when a first component is said to be "in electrical contact with" or "electrically coupled to" a second component, there is an electrical path between the first component and the second component that allows current to flow. The electrical path may include capacitors, coupled inductors, and/or other components that allow current to flow even without direct contact between the conductive components.
The following embodiments of the present invention provide a mounting tool for a pallet nut, which can improve the mounting quality and the assembly efficiency of the pallet nut, and has a simple structure and a low cost.
Fig. 2 is a schematic view of a mounting tool for a pallet nut according to an embodiment of the present invention. Fig. 3 is a schematic cross-sectional view of a mounting tool for a back nut according to an embodiment of the present invention.
The following describes the mounting tool of the pallet nut with reference to fig. 2 and 3. It is to be understood that the following description is merely exemplary, and that variations may be made by those skilled in the art without departing from the spirit of the invention.
Referring to fig. 1, 2 and 3, the pallet nut setting tool 100 includes: a positioning plate 110, a positioning base 120, a lifting screw 130, a plurality of brackets 140, and a mounting screw 150.
The positioning plate 110 is suitable for being connected with a rear mounting edge of the turbine shaft 1, and a plurality of mounting holes 11 are formed in the turbine shaft 1. The positioning base 120 is located below the positioning plate 110. The lifting screw 130 is connected to the positioning plate 110 and the positioning base 120, and is adapted to adjust the distance between the positioning base 120 and the positioning plate 110. A plurality of brackets 140 are movably disposed on the positioning base 120 and adapted to carry the pallet nuts 2. The mounting screw 150 is adapted to flare the pallet nut 2, and the pallet nut 2 is fixed in the mounting hole 11 by the flare.
The shape of the positioning plate 110 may be circular, oval, quadrilateral, etc. Preferably, the shape of the positioning plate 110 can match with the rear mounting edge of the turbine shaft 1. Turbine shaft 1 includes, but is not limited to, a low-pressure turbine shaft.
The lifting screw 130 may be a cylindrical straight rod structure. For example, the upper and lower ends of the lifting screw 130 may be threaded. The lifting screw 130 is connected to the positioning plate 110 through a thread at an upper end and connected to the positioning base 120 through a thread at a lower end.
Referring to fig. 3, in some examples, the lower end of the lifting screw 130 is further provided with a shoulder 131, and after the lifting screw 130 is screwed into the positioning base 120 through the thread at the lower end, the shoulder 131 can abut against the positioning base 120 to perform a limiting function.
Fig. 4 is a schematic view of a positioning base and a plurality of brackets of a mounting tool for a pallet nut according to an embodiment of the invention. Fig. 5 is a schematic view of a positioning plate of a mounting tool for a pallet nut according to an embodiment of the present invention.
Referring to fig. 4, in an embodiment of the present invention, the plurality of brackets 140 includes a bearing plate 142 and a push rod 141 connected to the bearing plate 142, and the bearing plate 142 is adapted to carry the pallet nut 2.
In some examples, the bearing plate 142 is further provided with a mounting hole for bearing and mounting the pallet nut 2. The mounting hole may be a through hole or a blind hole, but the invention is not limited thereto.
In the example shown in fig. 3 and 4, the carrier plate 142 and the push rod 141 constitute an "L" shaped bracket 140.
Referring to fig. 3, 4 and 5, in an embodiment of the present invention, the positioning plate 110 is provided with a plurality of guide slots 111, the positioning base 120 is provided with a plurality of slide slots 121 corresponding to the plurality of guide slots 111, the push rod 141 is adapted to move along the plurality of guide slots 111 and the bearing plate 142 is adapted to move along the plurality of slide slots 121.
The lengths of the plurality of guide grooves 111 may be the same or different. Those skilled in the art can adjust the specific length and arrangement of each guiding groove 111 according to actual needs, and the invention is not limited thereto.
Similarly, the lengths of the plurality of runners 121 may be the same or different. Those skilled in the art can adjust the specific length and arrangement of each sliding chute 121 according to actual needs, and the invention is not limited thereto.
In some embodiments of the present invention, the plurality of guiding grooves 111 may be radially radial around the geometric center of the positioning plate 110. In the example of fig. 2 and 3, the positioning plate 110 is provided with four radially and circumferentially uniformly distributed guide grooves 111.
Similarly, the sliding grooves 121 corresponding to the guiding grooves 111 may be radially radial around the geometric center of the positioning base 120. In the example of fig. 2 and 4, the positioning base 120 is provided with four sliding grooves 121 which are radially and uniformly distributed in the circumferential direction.
In some examples, the two extreme positions on the guide groove 111 may correspond to the two extreme positions on the chute 121, respectively. Preferably, a line connecting each limit position of the guide slot 111 and the limit position of the corresponding slide slot 121 is perpendicular to a plane on which the positioning plate 110 is located.
Referring to fig. 2 and 3, in an embodiment of the present invention, the mounting tool 100 for a pallet nut further includes a positioning nut 160 disposed on the positioning plate 110 and threadedly engaged with the lifting screw 130, wherein the positioning nut 160 is adapted to control the movement of the lifting screw 130.
For example, the lifting screw 130 may pass through a hole in the center of the positioning plate 110 and be screwed into the positioning nut 160 through a thread at the upper end thereof. When it is necessary to adjust the distance of the positioning base 120 relative to the positioning plate 110, the positioning nut 160 may be rotated, thereby moving the lifting screw 130 up and down. For example, when the positioning nut 160 is rotated clockwise, the lifting screw 130 may be moved upward to lift the positioning base 120 connected to the lifting screw 130; when the set nut 160 is rotated counterclockwise, the lifting screw 130 may be moved downward to lower the positioning base 120 coupled to the lifting screw 130.
Referring to fig. 3, in some examples, the positioning nut 160 may be a structure having upper and lower cylinders. Preferably, the upper and lower cylinders of the positioning nut 160 may be respectively sized such that when the push rods 141 of the bracket 140 are respectively moved to the two extreme positions of the guide groove 111, portions of the push rods 141 adjacent to the elevating screw 130 respectively abut against outer side surfaces of the upper and lower cylinders of the positioning nut 160.
For example, when the push rod 141 is pushed inward to a limit position on the guide groove 111, the inner side of the push rod 141 may be abutted against the outer side surface of the lower cylinder of the positioning nut 160; when the push rod 141 is pushed outward to another limit position on the guide groove 111, the inner side of the push rod 141 can be attached to the outer side surface of the upper cylinder of the positioning nut 160, and at this time, the positioning nut 160 can perform positioning and fixing functions on the push rod 141.
It is understood that inward may refer to a radial direction toward the lift screw 130 and outward may be the opposite direction inward.
Those skilled in the art can make corresponding adjustments to the specific shape of the positioning nut 160 according to actual needs, and the invention is not limited thereto.
Referring to fig. 3 and 5, in an embodiment of the invention, a first seam allowance 12 is arranged on a rear mounting edge of the turbine shaft 1, a second seam allowance 112 corresponding to the first seam allowance 12 is arranged on a lower surface of the positioning plate 110, and the positioning plate 110 is connected with the rear mounting edge of the turbine shaft 1 through the first seam allowance 12 and the second seam allowance 112.
When the mounting tool 100 of the splint nut is mounted on the rear mounting edge of the turbine shaft 1, the positioning plate 110 can be kept concentric with the turbine shaft 1 by the cooperation of the first spigot 12 and the second spigot 112, so that the mounting tool 100 can be accurately positioned in the radial direction.
With continued reference to fig. 3 and 5, in an embodiment of the present invention, the mounting tool 100 for a pallet nut further includes a positioning pin 170, the rear mounting edge of the turbine shaft 1 is provided with a plurality of first positioning holes 13, the edge of the positioning plate 110 is provided with at least two second positioning holes 113, and the positioning pin 170 fixes the positioning plate 110 on the rear mounting edge of the turbine shaft 1 through the at least two second positioning holes 113 and the plurality of first positioning holes 13.
By inserting at least one positioning pin 170 through one of the second positioning holes 113 on the positioning plate 110 and into one of the first positioning holes 13 on the rear mounting edge of the turbine shaft 1, the positioning plate 110 can be circumferentially fixed on the rear mounting edge of the turbine shaft 1, ensuring accurate positioning of the mounting tool 100 in the circumferential direction.
When other pallet nuts 2 with different circumferential positions need to be mounted, one of the second positioning holes 113 on the positioning plate 110 can be aligned with the other first positioning hole 13 on the rear mounting edge of the turbine shaft 1 again by rotating the positioning plate 110. Then, the positioning pins 170 are inserted, and the positioning plate 110 is circumferentially fixed to the rear mounting edge of the turbine shaft 1 again.
Because the positions of the first positioning holes 13 on the rear mounting edge of the turbine shaft 1 and the positions of the mounting holes 11 in the turbine shaft 1 have a certain positional relationship, by reasonably setting the positions of the at least two second positioning holes 113 at the edge of the positioning plate 110, it can be ensured that when the positioning plate 110 is rotated to align the pallet nuts 2 on the bearing plate 142 with the mounting holes 11 at different positions in the turbine shaft 1, respectively, one second positioning hole 113 of the at least two second positioning holes 113 can be aligned with one first positioning hole 13 of the first positioning holes 13 on the rear mounting edge of the turbine shaft 1 at the same time.
Referring to fig. 2 and 5, the positioning plate 110 may further have a plurality of operation holes (not shown) uniformly distributed in the circumferential direction and a plurality of support plates (not shown) located between the operation holes. The plurality of guide grooves 111 may be provided in the plurality of brackets. The operation hole can conveniently place the supporting plate nut 2 on the bearing plate 142 of the plurality of brackets 140, and can also play a role of an observation window. In one example shown in fig. 2 and 5, the operation hole has a fan shape, and the present invention is not limited to the specific shape thereof.
Referring to fig. 5, in an embodiment of the present invention, the positioning plate 110 is further provided with a plurality of through holes 114 corresponding to the plurality of guide grooves 111, and the mounting screw 150 is adapted to pass through the plurality of through holes 114 to flare the pallet nut 2. The plurality of through holes 114 may serve to position and guide the mounting screws 150.
Preferably, the positions of the plurality of through holes 114 may correspond to the central positions of the carrier plates 142 of the plurality of brackets 140, respectively.
FIG. 6 is a schematic view of the flare of an installation tool for a pallet nut according to an embodiment of the present invention.
Referring to fig. 6, in an embodiment of the present invention, one end of the mounting screw 150 is provided with a tapered portion 151, and the mounting screw 150 flares the pallet nut 2 through the tapered portion 151.
In an embodiment of the present invention, the tapered portion 151 has an external thread (not shown), the pallet nut 2 has an internal thread (not shown), and the mounting screw 150 is adapted to be screwed into at least a portion of the interior of the pallet nut 2 through the external thread and the internal thread to flare the pallet nut 2.
By inserting the tapered surface of the tapered portion 151 into at least a part of the pallet nut 2 (for example, the head of the pallet nut 2) and pressing the same, the pallet nut 2 can be flared (for example, pressed in the shape of the bell mouth 21) and brought into close contact with the tapered surface of the mounting hole 11. The self-centering mounting mode can effectively reduce the mounting rejection rate of the supporting plate nut 2.
In some examples, the mounting screw 150 also has a "T" shaped handle to increase the torque when screwing in the pallet nut 2.
The mounting tool 100 for the splint nut can ensure accurate positioning when the splint nut 2 is mounted, improves the mounting quality of the splint nut 2 and reduces the rejection rate. Simultaneously, can also lay a plurality of layer board nuts 2 once, improve the assembly efficiency of layer board nut 2.
The above embodiment of the invention provides an installation tool for a splint nut, which can improve the installation quality and the assembly efficiency of the splint nut, and has the advantages of simple structure and lower cost.
The invention provides a mounting method of the splint nut, which can improve the mounting quality and the assembly efficiency of the splint nut and has simple structure and lower cost.
The method comprises the following steps: and connecting the positioning plate to the rear mounting edge of the turbine shaft. Placing a plurality of pallet nuts on a plurality of brackets, respectively. The distance between the positioning base and the positioning plate is adjusted through the lifting screw rod, so that the supporting plate nuts are positioned below the mounting holes. And rotating the positioning plate to enable the supporting plate nuts to be respectively aligned with the mounting holes in the circumferential direction. The plurality of brackets are moved to axially align the plurality of pallet nuts with the plurality of mounting holes, respectively. The lifting screw rod is used for adjusting the distance between the positioning base and the positioning plate, so that at least one part of the supporting plate nuts are respectively positioned in the mounting holes. And flaring the plurality of supporting plate nuts through mounting screws.
Fig. 7 is a flowchart of a method for installing a pallet nut according to an embodiment of the invention. This mounting method will be described below with reference to fig. 7. It is to be understood that the following description is merely exemplary, and that variations may be made by those skilled in the art without departing from the spirit of the invention.
It should be noted that the installation method can be implemented by the installation tool of the pallet nut shown in fig. 1 to 6 or a variation thereof, but the invention is not limited thereto.
It is to be understood that the following description is merely exemplary, and that variations may be made by those skilled in the art without departing from the spirit of the invention.
Referring to fig. 7, the installation method includes the steps of:
Referring to fig. 3 and 5, in an embodiment of the invention, a first seam allowance 12 is arranged on a rear mounting edge of the turbine shaft 1, a second seam allowance 112 corresponding to the first seam allowance 12 is arranged on a lower surface of the positioning plate 110, and the positioning plate 110 is connected with the rear mounting edge of the turbine shaft 1 through the first seam allowance 12 and the second seam allowance 112.
For example, the mounting tool 100 of the pallet nut can be mounted on the rear mounting edge of the turbine shaft 1 through the cooperation of the first spigot 12 and the second spigot 112, and meanwhile, the positioning plate 110 can be ensured to be concentric with the turbine shaft 1, so that the positioning tool 100 can be accurately positioned in the radial direction.
In some embodiments, the nut plate mounting tool 100 further includes a positioning nut 160 disposed on the positioning plate 110 and threadedly engaged with the lifting screw 130, wherein the positioning nut 160 can control the movement of the lifting screw 130.
The positioning nut 160 may be a structure having upper and lower cylinders. Preferably, the upper and lower cylinders of the positioning nut 160 may be respectively sized such that when the push rods 141 of the bracket 140 are respectively moved to the two extreme positions of the guide groove 111, portions of the push rods 141 adjacent to the elevating screw 130 respectively abut against outer side surfaces of the upper and lower cylinders of the positioning nut 160.
Step 710 may also include rotating the retaining nut 160 to position the plurality of carriers 140 below the lower surface of the upper cylinder of the retaining nut 160 and then moving (pushing) the plurality of carriers 140 inward to an extreme position.
In some examples, when the push rod 141 of the bracket 140 moves inward to the limit position of the guide groove 111, a portion of the push rod 141 near the lifting screw 130 may be abutted with the outer side surface of the lower cylinder of the positioning nut 160.
Referring to fig. 4, in an embodiment of the present invention, the plurality of brackets 140 includes a bearing plate 142 and a push rod 141 connected to the bearing plate 142, and the bearing plate 142 is adapted to carry the pallet nut 2.
In some examples, the bearing plate 142 is further provided with a mounting hole for bearing and mounting the pallet nut 2. The mounting hole may be a through hole or a blind hole, but the invention is not limited thereto.
Referring to fig. 2 and 5, the positioning plate 110 may further have a plurality of operation holes (not shown) uniformly distributed in the circumferential direction and a plurality of support plates (not shown) located between the operation holes. The plurality of guide grooves 111 may be provided in the plurality of brackets. The operation hole can facilitate the placement of the pallet nut 2 on the bearing plate 142 of the plurality of brackets 140, and can also function as an observation window.
For example, the plurality of pallet nuts 2 may be respectively seated into the seating holes of the carrier plate 142 of the plurality of brackets 140 through the plurality of operation holes of the positioning plate 110.
For example, the distance between the positioning base 120 and the positioning plate 110 can be adjusted (e.g., the positioning nut 160 is rotated counterclockwise to lower the positioning base 120), so that the plurality of pallet nuts 2 on the plurality of carrier plates 142 are all located below the mounting holes 11.
In step 740, the positioning plate 110 is rotated to circumferentially align the plurality of pallet nuts 2 with the plurality of mounting holes 11, respectively.
Referring to fig. 3 and 5, in an embodiment of the present invention, the mounting tool 100 for a pallet nut further includes a positioning pin 170, the rear mounting edge of the turbine shaft 1 is provided with a plurality of first positioning holes 13, the edge of the positioning plate 110 is provided with at least two second positioning holes 113, and the positioning pin 170 fixes the positioning plate 110 on the rear mounting edge of the turbine shaft 1 through the at least two second positioning holes 113 and the plurality of first positioning holes 13.
For example, after the plurality of pallet nuts 2 are circumferentially aligned with the plurality of mounting holes 11, respectively, the positioning plate 110 can be circumferentially fixed on the rear mounting edge of the turbine shaft 1 by inserting at least one positioning pin 170 through one of the second positioning holes 113 on the positioning plate 110 and into one of the first positioning holes 13 on the rear mounting edge of the turbine shaft 1, thereby ensuring accurate positioning of the mounting tool 100 in the circumferential direction.
At step 750, the plurality of brackets 140 are moved to axially align the plurality of pallet nuts 2 with the plurality of mounting holes 11, respectively.
Illustratively, the plurality of brackets 140 may be moved (pushed) outward such that the plurality of pallet nuts 2 are radially aligned with the plurality of mounting holes 11, respectively. At this time, the plurality of pallet nuts 2 are circumferentially and radially aligned with the plurality of mounting holes 11, respectively. The pallet nut 2 reaches a predetermined mounting position, axially aligned with the plurality of mounting holes 11, via step 750.
Referring to fig. 3, 4 and 5, in an embodiment of the present invention, the positioning plate 110 is provided with a plurality of guide slots 111, the positioning base 120 is provided with a plurality of slide slots 121 corresponding to the plurality of guide slots 111, the push rod 141 is adapted to move along the plurality of guide slots 111 and the bearing plate 142 is adapted to move along the plurality of slide slots 121.
In some embodiments of the present invention, the plurality of guiding grooves 111 may be radially radial around the geometric center of the positioning plate 110. In the example of fig. 2 and 3, the positioning plate 110 is provided with four radially and circumferentially uniformly distributed guide grooves 111.
Similarly, the sliding grooves 121 corresponding to the guiding grooves 111 may be radially radial around the geometric center of the positioning base 120. In the example of fig. 2 and 4, the positioning base 120 is provided with four sliding grooves 121 which are radially and uniformly distributed in the circumferential direction.
In some examples, the two extreme positions on the guide groove 111 may correspond to the two extreme positions on the chute 121, respectively. Preferably, a line connecting each limit position of the guide slot 111 and the corresponding limit position of the sliding slot 121 is perpendicular to a plane on which the positioning plate 110 is located.
Preferably, when the push rod 141 of the bracket 140 moves outward to the limit position along the guide groove 111, the carrier plate 142 of the bracket 140 also moves outward to the limit position along the slide groove 121 in synchronization, and the pallet nuts 2 on the carrier plate 142 are aligned with the corresponding mounting holes 11, respectively.
In step 760, the lifting screw 130 adjusts the distance between the positioning base 120 and the positioning plate 110 so that at least a portion of the pallet nuts 2 are respectively located in the mounting holes 11.
In this step, the bearing plates 142 of the brackets 140 respectively drive the pallet nuts 2 to rise to a position where at least a portion of the pallet nuts 2 are located in the corresponding mounting holes 11.
Referring to fig. 4 and 6, the carrier plate 142, together with the structure around the mounting hole 11, clamps the mounting flange 22 of the pallet nut 2.
In some examples, when the push rod 141 of the bracket 140 moves outward to the limit position of the guide groove 111, a portion of the push rod 141 near the lifting screw 130 may be abutted with the outer side surface of the upper cylinder of the positioning nut 160.
Referring to fig. 3, the outer limit positions of the guide groove 111 and the slide groove 121 together with the outer side surface of the upper cylinder of the positioning nut 160 expect a positioning and fixing effect on the bracket 140.
Through the above steps, the pallet nut 2 can be fixed in advance.
Referring to fig. 6, in an embodiment of the present invention, one end of the mounting screw 150 is provided with a tapered portion 151, and the mounting screw 150 flares the pallet nut 2 through the tapered portion 151.
In an embodiment of the present invention, the tapered portion 151 has an external thread (not shown), the pallet nut 2 has an internal thread (not shown), and the mounting screw 150 is adapted to be screwed into at least a portion of the interior of the pallet nut 2 through the external thread and the internal thread to flare the pallet nut 2.
In some examples, the mounting screw 150 also has a "T" shaped handle to increase the torque when screwing in the pallet nut 2.
Illustratively, the pallet nut 2 may be flared (e.g., pressed into the shape of the flare 21) by having the tapered surface of the tapered portion 151 extend into and press against at least a portion of the pallet nut 2 (e.g., the head of the pallet nut 2), so that it abuts against the tapered surface of the mounting hole 11. The self-centering mounting mode can effectively reduce the mounting rejection rate of the splint nut 2.
In an embodiment of the present invention, step 770 may be followed by removing mounting screw 150. For example, the mounting screw 150 may be rotated in the opposite direction to disengage the tapered portion 151 from the pallet nut 2.
When it is necessary to mount other pallet nuts 2 having different circumferential positions, the set nut 160 may be rotated so that the plurality of brackets 140 are positioned below the lower surface of the upper cylinder of the set nut 160, and then the plurality of brackets 140 are moved (pushed) inward to the extreme position. The locating pin 170 is then pulled out and steps 720 through 770 are repeated.
For example, when the step 740 is repeated, one of the second positioning holes 113 on the positioning plate 110 can be aligned with the other first positioning hole 13 on the rear mounting edge of the turbine shaft 1 again by continuing to rotate the positioning plate 110. Then, the positioning pins 170 are inserted, and the positioning plate 110 is circumferentially fixed to the rear mounting edge of the turbine shaft 1 again.
The specific steps for installing other pallet nuts 2 with different circumferential positions can refer to the embodiment shown in fig. 7, and are not described herein again.
The mounting method of the supporting plate nut can ensure accurate positioning when the supporting plate nut 2 is mounted, improves the mounting quality of the supporting plate nut 2 and reduces the rejection rate. Simultaneously, can also lay a plurality of layer board nuts 2 once, improve the assembly efficiency of layer board nut 2.
It should be noted that the flowchart shown in fig. 7 is used herein to illustrate the steps/operations performed by the installation method according to an embodiment of the present application. It will be appreciated that these steps/operations are not necessarily performed in the exact order in which they are performed. Rather, various steps/operations may be processed in reverse order or concurrently. Meanwhile, other steps/operations may be added to or removed from these processes.
Further implementation details of the installation method of the present embodiment may refer to the embodiments described in fig. 1 to 6, and are not further expanded herein. The priority of the specific operation steps of the installation method can be adjusted appropriately according to the actual needs by those skilled in the art, and the present invention is not limited thereto.
The above embodiment of the invention provides an installation method of a splint nut, which can improve the installation quality and the assembly efficiency of the splint nut, and has the advantages of simple structure and lower cost.
It is to be understood that while certain presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of illustration, and not by way of limitation, such details are provided for purposes of illustration only and the appended claims are intended to cover all such modifications and equivalent arrangements as fall within the true spirit and scope of the embodiments of the disclosure.
Having thus described the basic concept, it will be apparent to those skilled in the art that the foregoing disclosure is by way of example only, and is not intended to limit the present application. Various modifications, improvements and adaptations to the present application may occur to those skilled in the art, although not explicitly described herein. Such modifications, improvements and adaptations are proposed in the present application and thus fall within the spirit and scope of the exemplary embodiments of the present application.
Also, this application uses specific language to describe embodiments of the application. Reference to "one embodiment," "an embodiment," and/or "some embodiments" means a feature, structure, or characteristic described in connection with at least one embodiment of the application. Therefore, it is emphasized and should be appreciated that two or more references to "an embodiment" or "one embodiment" or "an alternative embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, certain features, structures, or characteristics may be combined as suitable in one or more embodiments of the application.
Additionally, unless explicitly recited in the claims, the order of processing elements and sequences, use of numbers or other designations in this application is not intended to limit the order of the processes and methods in this application. While various presently contemplated embodiments of the invention have been discussed in the foregoing disclosure by way of example, it is to be understood that such detail is solely for that purpose and that the appended claims are not limited to the disclosed embodiments, but, on the contrary, are intended to cover all modifications and equivalent arrangements that are within the spirit and scope of the embodiments herein. For example, although the system components described above may be implemented by hardware devices, they may also be implemented by software-only solutions, such as installing the described system on an existing server or mobile device.
Similarly, it should be noted that in the preceding description of embodiments of the application, various features are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure aiding in the understanding of one or more of the embodiments. This method of disclosure, however, is not intended to imply that more features are required than are expressly recited in the claims. Indeed, the embodiments may be characterized as having less than all of the features of a single embodiment disclosed above.
Some embodiments have been described using numbers to describe components, attributes, and quantities, it being understood that such numbers as are suitable for description of the embodiments have been modified in some instances by the use of the modifier "about", "approximately" or "substantially". Unless otherwise indicated, "about", "approximately" or "substantially" indicates that the number allows a variation of ± 20%. Accordingly, in some embodiments, the numerical parameters used in the specification and claims are approximations that may vary depending upon the desired properties of the individual embodiments. In some embodiments, the numerical parameter should take into account the specified significant digits and employ a general digit preserving approach. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of the range are approximations, in the specific examples, such numerical values are set forth as precisely as possible within the scope of the application.
Although the present invention has been described with reference to the present specific embodiments, it will be appreciated by those skilled in the art that the above embodiments are merely illustrative of the present invention, and various equivalent changes and substitutions may be made without departing from the spirit of the invention, and therefore, it is intended that all changes and modifications to the above embodiments within the spirit and scope of the present invention be covered by the appended claims.
Claims (10)
1. An installation tool for a pallet nut, comprising: the device comprises a positioning plate, a positioning base, a lifting screw, a plurality of brackets and a mounting screw;
the positioning plate is suitable for being connected with a rear mounting edge of a turbine shaft, and a plurality of mounting holes are formed in the turbine shaft;
the positioning base is positioned below the positioning plate;
the lifting screw is connected with the positioning plate and the positioning base and is suitable for adjusting the distance between the positioning base and the positioning plate;
the brackets are movably arranged on the positioning base and are suitable for bearing the supporting plate nuts;
the mounting screw is suitable for flaring the supporting plate nut, and the supporting plate nut is fixed in the mounting hole through the flaring.
2. The installation tool of claim 1 wherein said plurality of brackets include a carrier plate and a push rod connected to said carrier plate, said carrier plate adapted to carry said pallet nut.
3. The installation tool of claim 2, wherein said positioning plate has a plurality of guide slots, said positioning base has a plurality of slide slots corresponding to said plurality of guide slots, said push rod is adapted to move along said plurality of guide slots and said carrier plate is adapted to move along said plurality of slide slots.
4. The installation tool of claim 1, further comprising a positioning nut disposed on the positioning plate and threadedly engaged with the lifting screw, the positioning nut adapted to control movement of the lifting screw.
5. The mounting tool as claimed in claim 1, wherein a first spigot is provided on a rear mounting edge of the turbine shaft, a second spigot corresponding to the first spigot is provided on a lower surface of the positioning plate, and the positioning plate is connected to the rear mounting edge of the turbine shaft through the first spigot and the second spigot.
6. The mounting tool of claim 1, further comprising a locating pin, wherein a plurality of first locating holes are provided in the rear mounting edge of the turbine shaft, wherein at least two second locating holes are provided in an edge of the locating plate, and wherein the locating pin secures the locating plate to the rear mounting edge of the turbine shaft via the at least two second locating holes and the plurality of first locating holes.
7. The installation tool of claim 3, wherein said positioning plate further comprises a plurality of through holes corresponding to said plurality of guide slots, and said mounting screws are adapted to pass through said plurality of through holes to flare said pallet nuts.
8. The installation tool of claim 1, wherein said mounting screw has a tapered portion at one end thereof, said mounting screw flaring said pallet nut through said tapered portion.
9. The installation tool of claim 8 wherein said tapered portion has an external thread and said pallet nut has an internal thread, said installation screw adapted to be threaded into at least a portion of said pallet nut through said external thread and said internal thread to flare said pallet nut.
10. A method of installing a pallet nut using the installation tool of any one of claims 1 to 9, comprising the steps of:
connecting the positioning plate on the rear mounting edge of the turbine shaft;
placing a plurality of pallet nuts on a plurality of brackets, respectively;
the distance between the positioning base and the positioning plate is adjusted through the lifting screw rod, so that the plurality of supporting plate nuts are positioned below the plurality of mounting holes;
rotating the positioning plate to enable the supporting plate nuts to be respectively aligned with the mounting holes in the circumferential direction;
moving the plurality of brackets to axially align the plurality of pallet nuts with the plurality of mounting holes, respectively;
adjusting the distance between the positioning base and the positioning plate through the lifting screw rod to enable at least one part of the supporting plate nuts to be respectively positioned in the mounting holes; and
and flaring the plurality of supporting plate nuts through mounting screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010703732.2A CN113953814B (en) | 2020-07-21 | 2020-07-21 | Mounting tool and mounting method for supporting plate nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010703732.2A CN113953814B (en) | 2020-07-21 | 2020-07-21 | Mounting tool and mounting method for supporting plate nut |
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| Publication Number | Publication Date |
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| CN113953814A CN113953814A (en) | 2022-01-21 |
| CN113953814B true CN113953814B (en) | 2022-07-05 |
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| CN202010703732.2A Active CN113953814B (en) | 2020-07-21 | 2020-07-21 | Mounting tool and mounting method for supporting plate nut |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4121444A (en) * | 1977-04-11 | 1978-10-24 | Avibank Mfg., Inc. | Manually operable tool for installing blind anchor nuts |
| FR2876939B1 (en) * | 2004-10-26 | 2007-01-19 | Renault Sas | UNIVERSAL TOOL FOR INSTALLING AND REMOVING A CLUTCH ON A COMPRESSOR HOUSING |
| US7575404B2 (en) * | 2006-11-01 | 2009-08-18 | Sps Technologies, Llc | Nut plate fastener assembly for composite materials |
| CN202174557U (en) * | 2011-08-09 | 2012-03-28 | 中国南方航空工业(集团)有限公司 | Device for mounting self-locking nut |
| CN103386600B (en) * | 2013-07-22 | 2015-09-02 | 山东太古飞机工程有限公司 | Boeing airtight plate nut mounting process instrument and supplies |
| CN203863333U (en) * | 2014-05-21 | 2014-10-08 | 无锡双友石化机械有限公司 | Nut installing/disassembling tool of diameter-expansion head |
| CN104384819B (en) * | 2014-08-15 | 2017-09-22 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of installing and fixing method of plate nut |
| CN105291046B (en) * | 2015-11-27 | 2017-05-10 | 中航成飞民用飞机有限责任公司 | Anchor nut riveting and installing tool |
| CN205806179U (en) * | 2016-06-21 | 2016-12-14 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of plate nut mounting structure |
| CN108789260B (en) * | 2018-05-30 | 2020-04-07 | 中国航发动力股份有限公司 | Reamer and method for mounting support plate nut |
| CN111283612A (en) * | 2020-03-31 | 2020-06-16 | 中国航发动力股份有限公司 | Device for mechanical extrusion type flaring |
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2020
- 2020-07-21 CN CN202010703732.2A patent/CN113953814B/en active Active
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