CN219078934U - Tower crane boom pin shaft mounting device - Google Patents
Tower crane boom pin shaft mounting device Download PDFInfo
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- CN219078934U CN219078934U CN202223202973.2U CN202223202973U CN219078934U CN 219078934 U CN219078934 U CN 219078934U CN 202223202973 U CN202223202973 U CN 202223202973U CN 219078934 U CN219078934 U CN 219078934U
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- pin shaft
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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Abstract
The utility model discloses a tower crane boom pin shaft mounting device which comprises a boom upper chord double-lug plate structure, a boom upper chord single-lug plate structure and a detachable pivot connecting mechanism; the arm support upper chord member double-lug plate structure comprises first lug plates and second lug plates which are arranged at intervals and in parallel, wherein first pin shaft holes are formed in the first lug plates, second pin shaft holes coaxial with the first lug plates are formed in the second lug plates, and base plates and first baffle plates are sequentially arranged on the outer side surfaces of the first lug plates from inside to outside along the transverse direction; the single-lug structure of the boom upper chord member comprises a third lug plate, and a third pin shaft hole is formed in the third lug plate; the detachable pivot connection mechanism comprises a pin shaft and a pin shaft pushing component, and the third lug plate is inserted between the first lug plate and the second lug plate and is pivoted with the first lug plate and the second lug plate through the pin shaft; the pin shaft pushing component is provided with a transverse pushing end, and the transverse pushing end is connected with the pin shaft. The beneficial effects of the utility model are as follows: the labor is saved, the danger of high-altitude operation is eliminated, and the disassembly is simple.
Description
Technical Field
The utility model relates to the field of tower cranes, in particular to a pin shaft mounting structure of a crane boom.
Background
At present, the connection between the boom frames of the tower crane is basically pin shaft connection, for small pin shafts or pin shafts with light weight, the connection between the boom frames can be pushed or detached by manpower, and sometimes the pin hole diameter of the connection between the boom frames is larger than the pin shaft diameter for the convenience of installation, but for the pin shafts with heavy weight, the connection between the boom frames is pushed and stopped by a single person, and the connection between the boom frames is realized in high altitude by means of auxiliary installation or detachment of a hammer if necessary, so that the installation and detachment by means of the hammer are unreasonable and impractical, and potential safety hazards exist.
Disclosure of Invention
In order to overcome the problems, the utility model provides the tower crane boom pin shaft mounting structure which is convenient to assemble and disassemble, simple to operate and free of manpower.
The technical scheme adopted by the utility model is as follows:
the utility model provides a tower crane jib loading boom round pin axle installation device which characterized in that: the arm support upper chord member comprises an arm support upper chord member double-lug plate structure, an arm support upper chord member single-lug plate structure and a detachable pivot connection mechanism;
the arm support upper chord member double-lug plate structure comprises a first lug plate and a second lug plate which are arranged at intervals and in parallel, wherein a first pin shaft hole is formed in the first lug plate, a second pin shaft hole which is coaxial with the first lug plate is formed in the second lug plate, the central axis directions of the first pin shaft hole and the second pin shaft hole are defined as transverse directions, the directions of the first lug plate and the second lug plate which are close to each other along the transverse directions are defined as inner sides, and the directions of the first lug plate and the second lug plate which are close to each other along the transverse directions are defined as outer sides; the outer side surface of the first lug plate is provided with a base plate and a first baffle plate in sequence from inside to outside along the transverse direction;
the arm support upper chord member single-lug plate structure comprises a third lug plate, and a third pin shaft hole is formed in the third lug plate;
the detachable pivot connection mechanism comprises a pin shaft and a pin shaft pushing component, and the third lug plate is inserted between the first lug plate and the second lug plate and is pivoted with the first lug plate and the second lug plate through the pin shaft; the pin shaft pushing component is provided with a transverse pushing end, and the transverse pushing end of the pin shaft pushing component is connected with the pin shaft and used for pushing the pin shaft to move transversely.
Preferably, the pin shaft pushing component comprises a supporting plate, a second baffle, a nut and a screw rod;
the upper part of the supporting plate is provided with a transverse arc-shaped through groove for supporting the pin shaft, the inner end of the supporting plate is connected to the outer side surface of the second ear plate, and the outer end of the supporting plate is connected with the second baffle plate;
the screw rod passes through the first baffle plate or the second baffle plate and then is detachably connected with the pin shaft;
the nut is sleeved on the screw rod, and the internal thread of the nut is meshed with the external thread of the screw rod, so that the transverse locking of the pin shaft is realized.
Preferably, the first baffle is provided with a first transverse through hole, the second baffle is provided with a second transverse through hole, and the first transverse through hole and the second transverse through hole are coaxial with the first pin shaft hole and are used for the screw to pass through.
Preferably, the two ends of the pin shaft are respectively provided with a central threaded hole which is used for being in threaded fit with a screw rod, and the screw rod passes through the first baffle plate or the second baffle plate and is in threaded connection with the central threaded hole on the same side of the pin shaft.
Preferably, the support plate is an arc plate matched with the pin shaft, and the upper edge of the arc plate is in high consistency with the central axes of the pin shaft, the first pin shaft hole and the second pin shaft hole.
Preferably, the upper edge of the supporting plate is provided with a reinforcing plate, and two ends of the reinforcing plate are respectively connected with the second lug plate and the second baffle plate.
The method for installing the pin shaft by using the tower crane boom pin shaft installing device comprises the following steps:
1) The pin shaft is transversely placed in a transverse arc-shaped through groove of the supporting plate, and at the moment, a central threaded hole of the pin shaft is coaxial with the first transverse through hole, the first pin shaft hole and the second pin shaft hole;
2) A nut is screwed on the screw rod, and the screw rod sequentially passes through the first baffle plate, the first lug plate, the third lug plate and the second lug plate and then is fastened with the central threaded hole of the pin shaft;
3) The nut is screwed to drive the pin shaft to sequentially pass through the second lug plate, the third lug plate and the first lug plate until the end part of the pin shaft contacts the first baffle plate, and the pin shaft is fastened by the nut, so that the transverse positioning of the pin shaft is realized.
The method for disassembling the pin shaft by using the tower crane boom pin shaft mounting device comprises the following steps:
1) Loosening the nut, separating the connection of the screw rod and the pin shaft;
2) The screw rod passes through the first transverse through hole of the first baffle plate and is fastened with the central threaded hole on the same side of the pin shaft, the nut is rotated, the pin shaft 3 is pushed to move along the transverse direction towards the second baffle plate until the pin shaft completely falls into the transverse arc-shaped through groove of the support plate, and the disassembly of the pin shaft is completed.
The beneficial effects of the utility model are as follows: the pin shaft mounting structure saves labor for the pin shaft with heavy weight, eliminates the high-altitude danger caused by auxiliary hammer in high altitude, and simultaneously eliminates the disassembly difficulty caused by the rust of the crane boom section; the pin shafts are installed or detached in a mode of opposite side installation and same side detachment; the opposite side installation and the same side disassembly modes: the nut and the screw are arranged on the same side, so that the nut can be conveniently rotated for 360 degrees; the same side installation and opposite side disassembly modes: the screw rod is required to penetrate through the baffle and is arranged on the nut, and the nut is inconvenient to rotate at the inner side, and structural members are in the way at two sides.
Drawings
Fig. 1 is a schematic view of a prior art pin installation.
Fig. 2 is a schematic view of the pin shaft in the present utility model.
Fig. 3 is a schematic view of a binaural structure of an arm support upper chord.
Fig. 4 is a structural view of the pin of the present utility model.
Fig. 5 is a schematic view of the pin of the present utility model in installation.
Fig. 6 is a schematic view of the pin of the present utility model when detached.
Fig. 7 is a schematic view of the position of a first ear plate of the present utility model.
Fig. 8 is a perspective view of the present utility model.
Detailed Description
The following describes the detailed implementation of the embodiments of the present utility model 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.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
The utility model will be described in detail below with reference to the drawings in connection with exemplary embodiments.
The tower crane boom pin shaft mounting device comprises a boom upper chord double-lug plate structure 1, a boom upper chord single-lug plate structure 2 and a detachable pivot connection mechanism 18;
the boom upper chord double-lug plate structure 1 comprises a first lug plate 11 and a second lug plate 12 which are arranged at intervals and in parallel, wherein a first pin shaft hole 111 is formed in the first lug plate 11, a second pin shaft hole 121 coaxial with the first lug plate 11 is formed in the second lug plate 12, the central axis direction of the first pin shaft hole 111 and the central axis direction of the second pin shaft hole 121 are defined as transverse directions, and the first lug plate 11 and the second lug plate 12 are defined as inner sides along the directions of being close to each other in the transverse directions, and the directions of being close to each other in the transverse directions are defined as outer sides; the outer side surface of the first ear plate 11 is provided with a backing plate 13 and a first baffle 14 in sequence from inside to outside along the transverse direction;
the boom upper chord single-lug plate structure 2 comprises a third lug plate 19, and a third pin shaft hole is formed in the third lug plate 19;
the detachable pivot connection mechanism 18 comprises a pin shaft 3 and a pin shaft pushing component 20, and the third lug plate 19 is inserted between the first lug plate 11 and the second lug plate 12 and pivoted with the first lug plate 11 and the second lug plate 12 through the pin shaft 3; the pin pushing member 20 has a lateral pushing end, and the lateral pushing end of the pin pushing member 20 is connected to the pin 3 for pushing the pin 3 to move laterally to mount and dismount the pin 3.
In some embodiments of the utility model, the first ear plate 11 and the second ear plate 12 are symmetrically arranged on both sides of the end of a boom section, and the first ear plate 11 and the second ear plate 12 are parallel and opposite, and form a double-ear plate at the end of the boom section. A third lug 19 is provided at the end of the other boom section in the form of a single lug.
In some embodiments of the present utility model, the pin pushing part 20 includes a support plate 15, a second baffle 16, a nut 4, and a screw 5;
the upper part of the supporting plate 15 is provided with a transverse arc-shaped through groove for supporting the pin shaft 3, the inner end of the supporting plate 15 is connected to the outer side surface of the second ear plate 12, and the outer end of the supporting plate 15 is connected with a second baffle 16;
the screw 5 passes through the first baffle 14 or the second baffle 16 and then is detachably connected with the pin shaft 3;
the nut 4 is sleeved on the screw 5, and the internal thread of the nut 4 is meshed with the external thread of the screw 5, so as to realize transverse locking of the pin shaft 3.
In some embodiments of the present utility model, the two ends of the pin 3 are respectively provided with a central threaded hole 31 for being in threaded engagement with the screw 5, and the screw 5 is in threaded connection with the central threaded hole 31 on the same side of the pin 3 after passing through the first baffle 14 or the second baffle 16.
In some embodiments of the present utility model, when the pin 3 is disassembled, the screw 5 is inserted into the second baffle 16, and the end of the screw 5 above the support plate 15 is used as a transverse pushing end of the pin pushing component 20 and is directly in threaded connection with the central threaded hole 31 on the same side of the pin 3; when the pin shaft 3 is installed, the screw 5 is penetrated in the first baffle 14, and the screw 5 is directly in threaded connection with the center threaded hole 31 on the same side of the pin shaft 3.
In some embodiments of the present utility model, the first baffle 14 is provided with a first transverse through hole, the second baffle 16 is provided with a second transverse through hole, and the first transverse through hole, the second transverse through hole, the first pin shaft hole 111 and the second pin shaft hole 121 are coaxial for the horizontal passage of the screw 5.
In some embodiments of the present utility model, the supporting plate 15 is an arc plate adapted to the pin shaft 3, the supporting plate 15 is horizontally fixed on the outer side surface of the second ear plate 12, and the upper edge of the arc plate is in height with the central thread hole 31 of the pin shaft 3, the central thread hole 111 of the first pin shaft hole and the central thread hole 121 of the second pin shaft hole.
In some embodiments of the present utility model, the upper edge of the supporting plate 15 is provided with a reinforcing plate 17, and two ends of the reinforcing plate 17 are respectively connected with the second ear plate 12 and the second baffle 16.
In some embodiments of the present utility model, the first pin bore 111, the second pin bore 121, the first transverse through bore, and the second transverse through bore are coaxial.
In some embodiments of the present utility model, the centers of the first baffle and the second baffle are respectively provided with a fixing nut for supporting the screw, when in use, the screw is inserted into the corresponding fixing nut, and the external thread of the screw is meshed with the internal thread of the fixing nut. The fixing nut can be replaced by a light hole to play a role of horizontally supporting the screw rod.
The method for installing the pin shaft by using the tower crane boom pin shaft installing device comprises the following steps:
1) The pin shaft 3 is transversely placed in a transverse arc-shaped through groove of the supporting plate 15, and at the moment, a central threaded hole 31 of the pin shaft 3 is coaxial with the first transverse through hole, the first pin shaft hole 111 and the second pin shaft hole 121;
2) The screw rod 5 is screwed with the nut 4, and the screw rod 5 sequentially passes through the first baffle 14, the first lug plate 11, the third lug plate 19 and the second lug plate 12 and then is fastened with the central threaded hole 31 of the pin shaft 3;
3) The nut 4 is screwed to drive the pin shaft 3 to move transversely, the pin shaft 3 sequentially passes through the second lug plate 12, the third lug plate 19 and the first lug plate 11 until the end part, close to the first baffle plate 14, of the pin shaft 3 contacts the first baffle plate 14, and the pin shaft 3 is fastened by the nut 4, so that the transverse positioning of the pin shaft 3 is realized, and the connection between two sections of the crane boom sections is realized.
The method for disassembling the pin shaft by using the tower crane boom pin shaft mounting device comprises the following steps:
1) Loosening the connection of the nut 4, the separation screw 5 and the pin shaft 3;
2) The screw 5 passes through the first transverse through hole of the second baffle 16 and is fastened with the central threaded hole 31 on the same side of the pin shaft 3;
3) And the nut 4 is rotated to push the pin shaft 3 to move along the direction of the second baffle 16 transversely until the pin shaft 3 completely falls into the transverse arc-shaped through groove of the supporting plate 15, and the detachment of the pin shaft is completed, so that the detachment of the two crane arm sections can be realized.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (6)
1. The utility model provides a tower crane jib loading boom round pin axle installation device which characterized in that: the arm support upper chord member comprises an arm support upper chord member double-lug plate structure (1), an arm support upper chord member single-lug plate structure (2) and a detachable pivot connecting mechanism (18);
the arm support upper chord member double-lug plate structure (1) comprises first lug plates (11) and second lug plates (12) which are arranged at intervals and in parallel, wherein first pin shaft holes (111) are formed in the first lug plates (11), second pin shaft holes (121) coaxial with the first lug plates (11) are formed in the second lug plates (12), the central axis directions of the first pin shaft holes (111) and the second pin shaft holes (121) are defined as transverse directions, and the directions of the first lug plates (11) and the second lug plates (12) which are close to each other along the transverse directions are defined as inner sides, and the directions of the first lug plates and the second lug plates are defined as outer sides; the outer side surface of the first lug plate (11) is provided with a backing plate (13) and a first baffle (14) in sequence from inside to outside along the transverse direction;
the arm support upper chord member single-lug plate structure (2) comprises a third lug plate (19), and a third pin shaft hole is formed in the third lug plate (19);
the detachable pivot connecting mechanism (18) comprises a pin shaft (3) and a pin shaft pushing component (20), and the third lug plate (19) is inserted between the first lug plate (11) and the second lug plate (12) and pivoted with the first lug plate (11) and the second lug plate (12) through the pin shaft (3); the pin shaft pushing component (20) is provided with a transverse pushing end, and the transverse pushing end of the pin shaft pushing component (20) is connected with the pin shaft (3) and used for pushing the pin shaft (3) to move transversely.
2. A tower crane boom pin mounting apparatus as defined in claim 1, wherein: the pin shaft pushing component (20) comprises a supporting plate (15), a second baffle (16), a nut (4) and a screw (5);
the upper part of the supporting plate (15) is provided with a transverse arc-shaped through groove for supporting the pin shaft (3), the inner end of the supporting plate (15) is connected to the outer side surface of the second ear plate (12), and the outer end of the supporting plate (15) is connected with the second baffle (16);
the screw (5) passes through the first baffle (14) or the second baffle (16) and then is detachably connected with the pin shaft (3);
the nut (4) is sleeved on the screw (5), and the internal thread of the nut (4) is meshed with the external thread of the screw (5) to realize transverse locking of the pin shaft (3).
3. A tower crane boom pin mounting apparatus as defined in claim 2, wherein: the two ends of the pin shaft (3) are respectively provided with a central threaded hole (31) which is used for being in threaded fit with the screw rod (5), and the screw rod (5) passes through the first baffle (14) or the second baffle (16) and is in threaded connection with the central threaded hole (31) on the same side of the pin shaft (3).
4. A tower crane boom pin mounting apparatus as claimed in claim 3, wherein: the first baffle (14) is provided with a first transverse through hole, the second baffle (16) is provided with a second transverse through hole, and the first transverse through hole, the second transverse through hole, the first pin shaft hole (111) and the second pin shaft hole (121) are coaxial and are used for horizontally passing the screw (5).
5. The tower crane boom pin mounting apparatus of claim 4, wherein: the support plate (15) is an arc plate of the adaptive pin shaft (3), the support plate (15) is in a horizontal shape and is transversely fixed on the outer side face of the second lug plate (12), and the upper edge of the arc plate is consistent with the central thread hole (31), the first pin shaft hole (111) and the central axis of the second pin shaft hole (121) of the pin shaft (3).
6. A tower crane boom pin mounting apparatus as defined in claim 5, wherein: the upper edge of backup pad (15) be equipped with reinforcing plate (17), second otic placode (12), second baffle (16) are connected respectively at the both ends of reinforcing plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223202973.2U CN219078934U (en) | 2022-11-30 | 2022-11-30 | Tower crane boom pin shaft mounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223202973.2U CN219078934U (en) | 2022-11-30 | 2022-11-30 | Tower crane boom pin shaft mounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219078934U true CN219078934U (en) | 2023-05-26 |
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ID=86393868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223202973.2U Active CN219078934U (en) | 2022-11-30 | 2022-11-30 | Tower crane boom pin shaft mounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219078934U (en) |
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2022
- 2022-11-30 CN CN202223202973.2U patent/CN219078934U/en active Active
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