CN213775968U - Fastener capable of improving anti-shearing performance of photovoltaic tracking support main shaft - Google Patents
Fastener capable of improving anti-shearing performance of photovoltaic tracking support main shaft Download PDFInfo
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- CN213775968U CN213775968U CN202022871496.3U CN202022871496U CN213775968U CN 213775968 U CN213775968 U CN 213775968U CN 202022871496 U CN202022871496 U CN 202022871496U CN 213775968 U CN213775968 U CN 213775968U
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- wedge
- hole
- main shaft
- photovoltaic tracking
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Abstract
The utility model discloses a fastener capable of improving the anti-shearing performance of a main shaft of a photovoltaic tracking bracket, which comprises an improved screw, wherein the improved screw comprises an end head, a smooth section and a thread section, the thread section is screwed with a movable nut, two expansion sleeves and two wedge sleeves are symmetrically sleeved on a rod body between the movable nut and the end head, and the wedge sleeves are in a round platform-shaped structure with wide outside and narrow inside; the expansion sleeve comprises an end plate and a sleeve, a wedge hole is formed in the sleeve, and at least one slit is formed in the sleeve body of the expansion sleeve positioned at the wedge hole and the sleeve body of the wedge sleeve close to the narrow end. The utility model has the advantages of reasonable design, the simple operation can promote the wedge sleeve from both sides during the fastening, and then makes the both sides wedge sleeve extrude the cover that expands simultaneously, and the cover that expands rises to the mounting hole fastening thereupon, can improve the anti-shear property of photovoltaic tracking support main shaft by a wide margin after the assembly.
Description
Technical Field
The utility model relates to a photovoltaic equipment technical field especially relates to a can improve fastener of photovoltaic tracking support main shaft anti-shear property.
Background
At present, solar photovoltaic power generation is widely advocated by the world as a clean energy source and is greatly supported and developed. The photovoltaic tracking support scheme generally comprises single-row assembly single-shaft independent drive, single-row assembly multi-shaft linkage drive, multi-row assembly single-shaft independent drive and multi-row assembly multi-shaft linkage drive. The single-shaft tracking support system is provided with a rotatable main shaft component, and one or more rows of photovoltaic modules are fixed on the main shaft component through purlines, and the photovoltaic modules form a rotating part together. The main shaft is arranged on the plurality of stand columns through bearings, the whole rotating part can rotate around the main shaft during working, and the lower ends of all the stand columns are fixedly arranged on a foundation or are inserted into the ground for fixing.
The company designs a main shaft for connecting the circular tubes in a shrinking pipe on a photovoltaic tracking support, a positioning hole is formed in the side wall of the connecting part of the shrinking pipe, and the inside and outside nested pipe bodies are fixed together by a fastener in the positioning hole to prevent the two connected circular tubes from twisting and sliding. The traditional fastener for fixing the inner and outer embedded sleeve walls mainly has two forms, namely, a long bolt is directly penetrated, a gap is reserved between the bolt and a hole, and sliding allowance exists when the inner and outer pipes are twisted, so that the shearing resistance of the main shaft is poor; and secondly, the inner and outer casing walls are pressed together by using a BOM rivet arranged on one side, but the riveting of the BOM rivet needs a special tool with large tensile force, the price of the rivet is slightly higher by adopting the scheme, and a hydraulic workstation is needed for an installation tool, so that the installation tool is expensive.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned problem that exists among the prior art, provide a can improve the fastener of photovoltaic tracking support main shaft anti-shear property.
In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:
a fastener capable of improving the shear resistance of a main shaft of a photovoltaic tracking support comprises an improved screw serving as a connecting carrier, wherein the improved screw is composed of an end head, a smooth section and a threaded section, the outer diameter of the smooth section is larger than or equal to that of the threaded section, a movable nut is screwed at the threaded section of the improved screw, two expansion sleeves and two wedge sleeves are symmetrically sleeved on a rod body of the improved screw between the movable nut and the end head, the two expansion sleeves are oppositely arranged, the two wedge sleeves are symmetrically arranged on the outer sides of the two expansion sleeves, the wedge sleeves are of a round-table-shaped structure with a wide outer part and a narrow inner part, a slide hole is formed in the wedge sleeves, and the outer diameter of the slide hole is larger than that of the smooth section; the expansion sleeve comprises an end plate and a sleeve, a wedge hole is formed in the sleeve, and at least one slit is formed in the sleeve body of the expansion sleeve positioned at the wedge hole and the sleeve body of the wedge sleeve close to the narrow end.
Further, in the fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support, the length of the smooth section is 1-20 times that of the threaded section.
Further, in the fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support, the taper of the wedge sleeve is 1-30 degrees.
Further, in the fastener capable of improving the anti-shearing performance of the main shaft of the photovoltaic tracking support, the outer surface of the sleeve in the expansion sleeve is a cylindrical surface convenient to fit with the mounting hole.
Further, in the fastener capable of improving the anti-shearing performance of the main shaft of the photovoltaic tracking support, the cross section of the slot is in an isosceles trapezoid shape or a rectangular shape.
Further, the utility model discloses a preferred scheme does, the wedge hole is second grade or tertiary step hole, and the aperture is steadilyd decrease by a side to the opposite side that is close to the end plate.
Further, the utility model discloses a preferred scheme does, the wedge hole is the inclined plane taper hole, and the aperture is steadilyd decrease by a side to the opposite side that is close to the end plate.
Further, a preferred embodiment of the present invention is that the wedge hole is a straight hole.
The utility model has the advantages that:
the utility model has reasonable structure design and convenient operation, and the installation tool only needs to use a conventional electric wrench; can promote the wedge cover from both sides during the fastening, and then make both sides wedge cover extrude the cover that expands simultaneously, expand the cover and rise tight fastening to the mounting hole thereupon, can improve the anti shear behavior of photovoltaic tracking support main shaft by a wide margin after the assembly.
Of course, it is not necessary for any product to achieve all of the above advantages simultaneously in practicing the invention.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic overall structure diagram of the present invention;
FIG. 2 is a schematic structural view of an improved screw of the present invention;
FIG. 3 is a first usage state diagram of the present invention;
FIG. 4 is a second usage state diagram of the present invention;
fig. 5 is a schematic structural view of the middle wedge sleeve of the present invention;
fig. 6 is a schematic structural view of an expansion sleeve according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an expansion sleeve in the second embodiment of the present invention;
fig. 8 is a schematic structural view of an expansion sleeve in the third embodiment of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-end head, 2-smooth section, 3-threaded section, 4-movable nut, 5-expansion sleeve, 501-end plate, 502-sleeve, 503-wedge hole and 6-wedge sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
Example one
Referring to fig. 1-6, the present embodiment is a fastener capable of improving the shear resistance of a main shaft of a photovoltaic tracking support, and includes an improved screw as a connection carrier, the improved screw is composed of a head 1, a smooth section 2 and a threaded section 3, and the length of the smooth section 2 is 1-20 times that of the threaded section 3. And the outer diameter of the smooth section 2 is larger than or equal to that of the threaded section 3. The improved screw is in threaded connection with a movable nut 4 at the position of the threaded section 3, two expansion sleeves 5 and two wedge sleeves 6 are symmetrically sleeved on a rod body of the improved screw between the movable nut 4 and the end 1, the two expansion sleeves 5 are oppositely arranged, and the two wedge sleeves 6 are symmetrically arranged on the outer sides of the two expansion sleeves 5.
In this embodiment, the wedge sleeve 6 is a circular truncated cone-shaped structure with a wide outer part and a narrow inner part, and a sliding hole is formed in the wedge sleeve, and the outer diameter of the sliding hole is larger than that of the smooth section 2.
In this embodiment, the expansion sleeve 5 includes an end plate 501 and a sleeve 502, a wedge hole 503 is formed in the sleeve 502, the wedge hole 503 is a second-level or third-level step hole, and the hole diameter decreases progressively from one side close to the end plate 501 to the other side.
In this embodiment, the sleeve body of the expansion sleeve 5 at the wedge hole 503 and the sleeve body of the wedge sleeve 6 near the narrow end are respectively provided with at least one slit, and the cross section of the slit is isosceles trapezoid.
In this embodiment, the taper of the wedge sleeve 6 is 1-30 °, and its narrow end faces the end plate 501 of the adjacent expansion sleeve 5.
In this embodiment, the outer surface of the sleeve 502 in the expansion sleeve 5 is a cylindrical surface convenient for fitting with the mounting hole.
One specific application of this embodiment is that the fastening method of the fastener includes the steps of:
1) nesting an outer pipe body and an inner pipe body which are provided with mounting holes together, and enabling the axes of the mounting holes of the two pipe bodies to be overlapped;
2) sleeving a wedge sleeve 6 and an expansion sleeve 5 on the smooth section 2 of the improved screw, penetrating the improved screw through mounting holes on two sides, and clamping a sleeve 502 of the expansion sleeve 5 into the mounting hole on one side; another wedge sleeve 6 and another expansion sleeve 5 are sleeved on the exposed thread section 3 of the improved screw rod, so that a sleeve 502 of the other expansion sleeve 5 is clamped in the mounting hole on the other side, and then a movable nut 4 is mounted on the exposed thread section;
3) utilize mounting tool like electric spanner to make movable nut 4 precession on the screw thread section, the wedge cover 6 of both sides block gradually in the cover that expands, the sleeve pipe 502 of the cover 5 that expands carries out the tight fastening that rises to the mounting hole of outer body, interior body, realizes linking firmly of outer body, interior body.
Example two
The structure and application of this embodiment are substantially the same as those of the first embodiment, except that as shown in fig. 7, the expansion sleeve 5 includes an end plate 501 and a sleeve 502, a wedge hole 503 is formed in the sleeve 502, the wedge hole 503 is a tapered hole, and the diameter of the wedge hole decreases from one side close to the end plate to the other side.
EXAMPLE III
The structure and application of this embodiment are substantially the same as those of the first embodiment, except that as shown in fig. 8, the expansion sleeve 5 includes an end plate 501 and a sleeve 502, a wedge hole 503 is formed in the sleeve 502, and the wedge hole 503 is a straight hole.
Example four
The structure and application of the present embodiment are substantially the same as those of the first embodiment, except that the sleeve body of the expansion sleeve 6 at the wedge hole 503 and the sleeve body of the wedge sleeve 5 near the narrow end are respectively provided with at least one slit, and the cross section of the slit is rectangular.
The preferred embodiments of the present invention disclosed above are only advantageous to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a can improve photovoltaic tracking support main shaft anti-shear property's fastener which characterized in that: the improved screw rod is used as a connecting carrier and comprises an end head, a smooth section and a thread section, the outer diameter of the smooth section is larger than or equal to that of the thread section, a movable nut is screwed at the thread section of the improved screw rod, two expansion sleeves and two wedge sleeves are symmetrically sleeved on a rod body of the improved screw rod between the movable nut and the end head, the two expansion sleeves are oppositely arranged, the two wedge sleeves are symmetrically arranged at the outer sides of the two expansion sleeves, the wedge sleeves are in a round platform-shaped structure with wide outer part and narrow inner part, a sliding hole is formed in the wedge sleeves, and the outer diameter of the sliding hole is larger than that of the smooth section; the expansion sleeve comprises an end plate and a sleeve, a wedge hole is formed in the sleeve, and at least one slit is formed in the sleeve body of the expansion sleeve positioned at the wedge hole and the sleeve body of the wedge sleeve close to the narrow end.
2. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to claim 1, wherein: the length of the smooth section is 1-20 times of the length of the threaded section.
3. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to claim 1, wherein: the taper of the wedge sleeve is 1-30 degrees.
4. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to claim 1, wherein: the outer surface of the sleeve in the expansion sleeve is a cylindrical surface convenient to fit with the mounting hole.
5. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to claim 1, wherein: the cross section of the slot is isosceles trapezoid or rectangular.
6. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to any one of claims 1 to 5, wherein: the wedge hole is a second-level or third-level step hole, and the hole diameter is gradually decreased from one side close to the end plate to the other side.
7. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to any one of claims 1 to 5, wherein: the wedge hole is an inclined plane taper hole, and the aperture is gradually decreased from one side close to the end plate to the other side.
8. The fastener capable of improving the shear resistance of the main shaft of the photovoltaic tracking support according to any one of claims 1 to 5, wherein: the wedge hole is a straight hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871496.3U CN213775968U (en) | 2020-12-04 | 2020-12-04 | Fastener capable of improving anti-shearing performance of photovoltaic tracking support main shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022871496.3U CN213775968U (en) | 2020-12-04 | 2020-12-04 | Fastener capable of improving anti-shearing performance of photovoltaic tracking support main shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213775968U true CN213775968U (en) | 2021-07-23 |
Family
ID=76896220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022871496.3U Active CN213775968U (en) | 2020-12-04 | 2020-12-04 | Fastener capable of improving anti-shearing performance of photovoltaic tracking support main shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213775968U (en) |
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2020
- 2020-12-04 CN CN202022871496.3U patent/CN213775968U/en active Active
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Address after: 213000 plant 6, Fengxiang Industrial Park, No. 31, Fengxiang Road, Wujin national high tech Industrial Development Zone, Changzhou City, Jiangsu Province Patentee after: Jiangsu Xiri New Energy Technology Co.,Ltd. Address before: 701-13, 7 / F, No.10 factory building, Changzhou Innovation Park, Changzhou, Israel, China, no.18-67, middle Changwu Road, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee before: Jiangsu Xiri New Energy Technology Co.,Ltd. |