CN219839392U - Pin shaft connecting structure, standard knot assembly and tower crane - Google Patents
Pin shaft connecting structure, standard knot assembly and tower crane Download PDFInfo
- Publication number
- CN219839392U CN219839392U CN202321504180.8U CN202321504180U CN219839392U CN 219839392 U CN219839392 U CN 219839392U CN 202321504180 U CN202321504180 U CN 202321504180U CN 219839392 U CN219839392 U CN 219839392U
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- lug plate
- pin shaft
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- connecting lug
- pin
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- 230000000149 penetrating effect Effects 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 description 5
- 230000002596 correlated effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model relates to the field of mechanical structures, and discloses a pin shaft connecting structure, a standard joint assembly and a tower crane. The utility model effectively improves the tensile strength and the compressive strength of the whole pin shaft connecting structure and effectively improves the performance of the pin shaft connecting structure.
Description
Technical Field
The utility model belongs to the field of mechanical structures, and particularly relates to a pin shaft connecting structure, a standard joint assembly and a tower crane.
Background
In the prior art, the pin shaft connecting structure between standard joints is shown in the accompanying drawings 1 and 2, and mainly comprises a male joint 01, a female joint 02 and a pin shaft 03, wherein the male joint 01 is of a cylindrical structure, the female joint 02 is of a circular tube structure, the male joint 01 is inserted into the female joint 02, the male joint 01 and the female joint 02 are respectively provided with pin shaft holes which are opposite, the pin shafts are inserted into the pin shaft holes of the male joint 01 and the female joint 02 so as to fixedly connect the male joint 01 and the female joint 02, and loads between the standard joints are transmitted through the pin shafts and the connecting pairs of the male joint and the female joint.
Referring to fig. 3 and 4, since the tensile strength of the pin connection structure is positively correlated with the bearing area A1 of the male connector 01 and the bearing area S1 of the female connector 02, in the pin connection structure described above, the bearing area S1 of the female connector 02 is larger than the bearing area A1 of the male connector 01, and thus there is a margin in the tensile strength of the female connector 02, and the tensile strength of the entire pin connection structure is limited by the bearing area A1 of the male connector 01, resulting in lower tensile strength of the pin connection structure; similarly, referring to fig. 3 and 4, since the compressive strength of the pin connection structure is positively correlated with the bearing area A2 of the male connector 01 and the bearing area S2 of the female connector, in the pin connection structure described above, the bearing area S2 of the female connector 02 is smaller than the bearing area A2 of the male connector 01, so that there is a margin in the compressive strength of the male connector 01, and the compressive strength of the entire pin connection structure is limited by the bearing area S2 of the female connector 02, resulting in lower compressive strength of the pin connection structure.
Disclosure of Invention
Aiming at the defects or the defects in the prior art, the utility model provides a pin shaft connecting structure, a standard joint assembly and a tower crane, and aims to solve the technical problem that the existing pin shaft connecting structure is low in tensile strength and compressive strength.
In order to achieve the above object, the present utility model provides a pin shaft connection structure including:
the female connector comprises a female connector body, a first connecting lug plate and a second connecting lug plate, wherein the first connecting lug plate and the second connecting lug plate are oppositely arranged and are respectively connected with the female connector body, and a gap is reserved between the first connecting lug plate and the second connecting lug plate;
the male connector comprises a male connector body and a third connecting lug plate connected with the male connector body, and the third connecting lug plate stretches into a gap between the first connecting lug plate and the second connecting lug plate;
the pin shaft is sequentially connected with the first connecting lug plate, the third connecting lug plate and the second connecting lug plate in a penetrating mode, and the female connector and the male connector are fixedly connected.
Optionally, the pin shaft connection structure includes a plurality of the pin shafts, a plurality of the pin shafts respectively cross-connect in proper order first connection otic placode, third connection otic placode and second connection otic placode to follow the length direction interval arrangement of pin shaft connection structure.
Optionally, the outline of the outer edge of the cross section formed by the first connecting ear plate, the second connecting ear plate and the third connecting ear plate together is circular.
Optionally, the outer edge contour of the cross section formed by the first connecting ear plate, the second connecting ear plate and the third connecting ear plate together is square.
Optionally, a gap is formed between the end of the first connection lug plate, which is far away from the female connector body, and the male connector body, and the end of the second connection lug plate, which is far away from the female connector body, respectively.
Optionally, the female connector body and the male connector body have opposite butt joint surfaces, the first connecting lug plate and the second connecting lug plate are integrally formed on the butt joint surface of the female connector body, and the third connecting lug plate is integrally formed on the butt joint surface of the male connector body.
The utility model provides a standard joint assembly, which comprises a first standard joint, a second standard joint and the pin shaft connecting structure, wherein the first standard joint and the second standard joint are connected with each other through the pin shaft connecting structure.
Optionally, the first standard knot comprises a first main chord member, the second standard knot comprises a second main chord member, one end of the first main chord member is provided with the female connector, one end of the second main chord member is provided with the male connector, and the pin shaft is connected with the female connector and the male connector in a penetrating manner so as to connect the first main chord member and the second main chord member.
The utility model provides a tower crane, which comprises the pin shaft connecting structure.
Optionally, the tower crane comprises a base section and a plurality of standard sections; the base sections and the standard sections are connected with each other through the pin shaft connecting structure, and/or the adjacent base sections are connected with each other through the pin shaft connecting structure.
In the pin shaft connecting structure, the third connecting lug plate of the male connector stretches into the gap between the first connecting lug plate and the second connecting lug plate of the female connector, and is connected with the first connecting lug plate, the third connecting lug plate and the second connecting lug plate in a penetrating way through the pin shaft in sequence so as to fixedly connect the female connector and the male connector.
Additional features and advantages of the utility model will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:
FIG. 1 is a schematic view of an axial cross section of a pin connection structure of the prior art;
FIG. 2 is a schematic cross-sectional view of the pin connection of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the female connector of FIG. 2;
FIG. 4 is a schematic cross-sectional view of the male connector of FIG. 2;
FIG. 5 is a schematic view of an axial cross section of a pin connection structure in one embodiment of the present utility model;
FIG. 6 is a schematic cross-sectional view of the pin connection of FIG. 5;
FIG. 7 is a schematic cross-sectional view of the female connector of FIG. 6;
FIG. 8 is a schematic cross-sectional view of the male connector of FIG. 6;
fig. 9 is a schematic view of an axial section of a pin shaft connection structure in another embodiment of the present utility model;
FIG. 10 is a schematic cross-sectional view of a pin connection structure in accordance with yet another embodiment of the present utility model;
FIG. 11 is a schematic cross-sectional view of the female connector of FIG. 10;
fig. 12 is a schematic cross-sectional view of the male connector of fig. 10.
Reference numerals illustrate:
1. female connector
11. First connection lug plate of female connector body 12
13. Second connecting ear plate
2. Male connector
21. Third connecting lug plate of male connector body 22
3. Pin shaft
Detailed Description
The following describes specific embodiments of the present utility model in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the utility model, are not intended to limit the utility model.
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
In the present utility model, unless otherwise indicated, terms of orientation such as "upper, lower, top, bottom" are used generally with respect to the orientation shown in the drawings or with respect to the positional relationship of the various components with respect to one another in the vertical, vertical or gravitational directions.
The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model firstly provides a pin shaft connecting structure which can be widely applied to a connecting part of a mechanical structure.
In one embodiment, referring to fig. 5 to 8, the pin shaft connection structure includes a female connector 1, a male connector 2 and a pin shaft 3, the female connector 1 includes a female connector body 11, a first connection tab 12 and a second connection tab 13, the first connection tab 12 and the second connection tab 13 are disposed opposite to each other and are connected to the female connector body 11, a gap is formed between the first connection tab 12 and the second connection tab 13, the male connector 2 includes a male connector body 21 and a third connection tab 22 connected to the male connector body 21, the third connection tab 22 extends into the gap between the first connection tab 12 and the second connection tab 13, and the pin shaft 3 sequentially penetrates through the first connection tab 12, the third connection tab 22 and the second connection tab 13 to fixedly connect the female connector 1 and the male connector 2.
In this embodiment, the third connection lug 22 of the male connector 2 extends into the gap between the first connection lug 12 and the second connection lug 13 of the female connector 1, and sequentially passes through the first connection lug 12, the third connection lug 22 and the second connection lug 13 through the pin shaft 3 to fixedly connect the female connector 1 and the male connector 2, by referring to fig. 7 and 8, the bearing area A3 of the male connector 2 and the bearing area S3 of the female connector 1 are approximately equal, the bearing area A4 of the male connector 2 and the bearing area S4 of the female connector 1 are approximately equal, that is, the tensile strength and the compressive strength of the male connector 2 and the female connector 1 are equivalent, that is, compared with the existing pin shaft connection structure, the surplus bearing area S3 of the female connector 1 is reasonably reduced, the surplus bearing area A4 of the male connector 2 is reasonably reduced, the bearing area A3 of the male connector 2 is increased, and the tensile strength and the compressive strength of the pin shaft connection structure are effectively improved.
It should be noted that, the bearing area A3 of the male connector 2 is approximately equal to the bearing area S3 of the female connector 1, that is, the bearing area A3 of the male connector 2 is equal to, slightly greater than or slightly less than the bearing area S3 of the female connector 1; the bearing area A4 of the male connector 2 is approximately equal to the bearing area S4 of the female connector 1, i.e. the bearing area A4 of the male connector 2 is equal to, slightly larger than or slightly smaller than the bearing area S4 of the female connector 1.
In one embodiment, the pin shaft connection structure includes a plurality of pin shafts 3, and the pin shafts 3 are respectively connected with the first connection ear plate 12, the third connection ear plate 22 and the second connection ear plate 13 in a penetrating manner in sequence, and are arranged at intervals along the length direction of the pin shaft connection structure.
In practical application, when the lengths of the first connecting ear plate 12, the third connecting ear plate 22 and the second connecting ear plate 13 are longer, the structural strength of the pin shaft connecting structure can be improved by increasing the number of pin shafts 3.
Specifically, the plurality of pins 3 may be disposed at equal intervals along the length direction of the pin connection structure.
In practical use, referring to fig. 9, the number of pins 3 may be specifically selected to be two.
In one embodiment, referring to fig. 6, the outer edge contour of the cross section formed by the first, second and third connecting ear plates 12, 13 and 22 is circular.
In another embodiment, referring to fig. 10 to 12, the outer edge contour of the cross section formed by the first, second and third connection lugs 12, 13 and 22 is square.
It can be understood that no matter what shape the outer edge contour line of the cross section formed by the first connecting ear plate 12, the second connecting ear plate 13 and the third connecting ear plate 22 is, only the bearing area A3 of the male connector 2 and the bearing area S3 of the female connector 1 are required to be approximately equal, the bearing area A4 of the male connector 2 and the bearing area S4 of the female connector 1 are approximately equal, so that the tensile strength and the compressive strength of the whole pin shaft connecting structure can be effectively improved, and the performance of the pin shaft connecting structure is effectively improved.
In one embodiment, the end portion of the first connection lug plate 12 and the second connection lug plate 13 far away from the female connector body 11 is respectively provided with a gap with the male connector body 21, so that mutual abrasion between the end face of the end portion of the first connection lug plate 12 and the second connection lug plate 13 far away from the female connector body 11 and the male connector body 21 is avoided, and reliability and service life of the pin shaft connection structure are effectively improved.
In one embodiment, the female connector body 11 and the male connector body 21 have opposite butt surfaces, the first connecting lug plate 12 and the second connecting lug plate 13 are integrally formed on the butt surface of the female connector body 11, and the third connecting lug plate 22 is integrally formed on the butt surface of the male connector body 21, so that the structure strength and the connection reliability of the pin shaft connection structure can be further improved.
In other embodiments, the first connection lug 12 and the second connection lug 13 may be welded or fastened by a fastener to the mating surface of the female connector body 11, and the third connection lug 22 may be welded or fastened by a fastener to the mating surface of the male connector body 21.
The utility model also provides a standard joint assembly which can be applied to engineering machinery such as elevators, tower cranes and the like.
In one embodiment, the standard knot assembly comprises a first standard knot, a second standard knot and the pin shaft connecting structure, and the first standard knot and the second standard knot are connected with each other through the pin shaft connecting structure.
In one embodiment, the first standard knot comprises a first main chord member, the second standard knot comprises a second main chord member, a female connector 1 is arranged at one end of the first main chord member, a male connector 2 is arranged at one end of the second main chord member, and a pin shaft 3 is connected with the female connector 1 and the male connector 2 in a penetrating manner so as to connect the first main chord member and the second main chord member, so that the connection structure between the first standard knot and the second standard knot has good connection strength and connection reliability.
The utility model also provides a tower crane, which comprises the pin shaft connecting structure.
In one embodiment, a tower crane includes a base section and a plurality of standard sections; the foundation sections are connected with the standard sections through pin shaft connecting structures, and/or the adjacent foundation sections are connected with each other through pin shaft connecting structures, so that the overall structural strength of the tower crane can be effectively improved.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
In addition, the specific features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various possible combinations are not described further.
Moreover, any combination of the various embodiments of the utility model can be made without departing from the spirit of the utility model, which should also be considered as disclosed herein.
Claims (10)
1. A pin connection structure, characterized in that the pin connection structure comprises:
the female connector (1) comprises a female connector body (11), a first connecting lug plate (12) and a second connecting lug plate (13), wherein the first connecting lug plate (12) and the second connecting lug plate (13) are oppositely arranged and are respectively connected with the female connector body (11), and a gap is reserved between the first connecting lug plate (12) and the second connecting lug plate (13);
the male connector (2) comprises a male connector body (21) and a third connecting lug plate (22) connected with the male connector body (21), and the third connecting lug plate (22) stretches into a gap between the first connecting lug plate (12) and the second connecting lug plate (13);
the pin shaft (3) is sequentially connected with the first connecting lug plate (12), the third connecting lug plate (22) and the second connecting lug plate (13) in a penetrating way, so that the female connector (1) and the male connector (2) are fixedly connected.
2. The pin shaft connecting structure according to claim 1, wherein the pin shaft connecting structure comprises a plurality of pin shafts (3), and the pin shafts (3) are respectively connected with the first connecting lug plate (12), the third connecting lug plate (22) and the second connecting lug plate (13) in a penetrating manner in sequence and are arranged at intervals along the length direction of the pin shaft connecting structure.
3. The pin shaft connecting structure according to claim 1, wherein the outer edge contour of a cross section formed by the first connecting lug plate (12), the second connecting lug plate (13) and the third connecting lug plate (22) together is circular.
4. The pin shaft connection structure according to claim 1, characterized in that the outer edge contour of the cross section formed by the first connection lug plate (12), the second connection lug plate (13) and the third connection lug plate (22) together is square-shaped.
5. The pin shaft connection structure according to claim 1, characterized in that the end portions of the first connection lug plate (12) and the second connection lug plate (13) distant from the female joint body (11) are respectively provided with a gap with the male joint body (21).
6. The pin shaft connection structure according to claim 1, wherein the female connector body (11) and the male connector body (21) have mutually opposite abutting surfaces, the first connection lug plate (12) and the second connection lug plate (13) are integrally formed on the abutting surface of the female connector body (11), and the third connection lug plate (22) is integrally formed on the abutting surface of the male connector body (21).
7. A modular segment assembly comprising a first modular segment, a second modular segment and a pin connection according to any one of claims 1 to 6, wherein the first and second modular segments are interconnected by the pin connection.
8. The standard knot assembly of claim 7, wherein the first standard knot comprises a first main chord and the second standard knot comprises a second main chord, one end of the first main chord is provided with the female connector (1) and one end of the second main chord is provided with the male connector (2), and the pin shaft (3) penetrates through the female connector (1) and the male connector (2) to connect the first main chord and the second main chord.
9. A tower crane, characterized in that it comprises a pin connection according to any one of claims 1 to 6.
10. The tower crane of claim 9, wherein the tower crane comprises a base section and a plurality of standard sections;
the base sections and the standard sections are connected with each other through the pin shaft connecting structure, and/or the adjacent base sections are connected with each other through the pin shaft connecting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504180.8U CN219839392U (en) | 2023-06-13 | 2023-06-13 | Pin shaft connecting structure, standard knot assembly and tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321504180.8U CN219839392U (en) | 2023-06-13 | 2023-06-13 | Pin shaft connecting structure, standard knot assembly and tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219839392U true CN219839392U (en) | 2023-10-17 |
Family
ID=88297899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321504180.8U Active CN219839392U (en) | 2023-06-13 | 2023-06-13 | Pin shaft connecting structure, standard knot assembly and tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219839392U (en) |
-
2023
- 2023-06-13 CN CN202321504180.8U patent/CN219839392U/en active Active
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