CN210236931U - Crane boom structure and hoisting equipment - Google Patents
Crane boom structure and hoisting equipment Download PDFInfo
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- CN210236931U CN210236931U CN201921282800.1U CN201921282800U CN210236931U CN 210236931 U CN210236931 U CN 210236931U CN 201921282800 U CN201921282800 U CN 201921282800U CN 210236931 U CN210236931 U CN 210236931U
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- adjusting
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Abstract
The utility model provides a jib loading boom structure and hoisting equipment relates to hoisting machinery technical field. The cargo boom structure comprises a main arm, an auxiliary arm and an adjusting component; the main arm comprises a mounting head with a first plug pin hole, the auxiliary arm comprises a mounting seat with a second plug pin hole, and the mounting head is embedded into a cavity of the mounting seat and can move in the cavity; the adjusting component is used for enabling the mounting head to move relative to the mounting base, so that the first bolt hole is aligned with the second bolt hole, and the technical problems that when the mounting head is fixedly assembled through the bolts in the prior art, the bolt holes are staggered due to the self-weight influence of the auxiliary arms, the bolts are difficult to assemble and the like are solved.
Description
Technical Field
The utility model relates to a hoisting machinery technical field especially relates to a jib loading boom structure and hoisting equipment.
Background
The cargo boom is a metal structural member for supporting a hoisting rope, a fetching device or a two-way bending of a variable amplitude trolley, and is supported on a rotary table or a tower body of the crane through a connecting pin shaft, a steel wire rope or a hydraulic cylinder. The crane boom can be divided into: a crane boom, a main boom (main arm), an auxiliary boom (sub arm), a telescopic boom, and the like. The auxiliary arm is arranged at the head of the main arm, the angle of the auxiliary arm is adjustable, the auxiliary arm extends out when in use, and the auxiliary arm can be folded, retracted or detached when not in use.
In prior art, main arm is fixed through four bolts mostly when installing with the fly jib, but because the influence of fly jib dead weight, when fixed through the bolt, the problem of pilot hole dislocation can appear in the assembly of fourth bolt, so lead to the bolt assembly difficulty.
In view of the above, there is a need for a crane boom structure and a crane apparatus that can solve the above problems.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide a jib loading boom structure to when alleviating among the prior art through the bolt assembly fixed, lead to the bolt hole dislocation because of the fly jib dead weight influence, technical problem such as bolt assembly difficulty.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a cargo boom structure, which comprises a main boom, an auxiliary boom and an adjusting component;
the main arm comprises a mounting head with a first plug pin hole, the auxiliary arm comprises a mounting seat with a second plug pin hole, and the mounting head is embedded into a cavity of the mounting seat and can move in the cavity;
the adjusting component is used for enabling the mounting head and the mounting base to move relatively so as to enable the first bolt hole and the second bolt hole to be aligned.
In any of the above technical solutions, further, an opening communicated with the cavity is formed in a side wall of the mounting base, a stopper is arranged at the opening, and the stopper is connected to the opening;
the adjusting component is respectively connected with the blocking piece and the mounting head and can drive the mounting seat to move relative to the mounting head so as to align the second plug pin hole with the first plug pin hole.
In any of the above technical solutions, further, the adjusting component includes an adjusting rod, one end of the adjusting rod is in threaded connection with the mounting head, the middle of the adjusting rod is rotatably connected with the stopper, and the axis direction of the adjusting rod is parallel to the moving direction;
screwing the adjusting rod can drive the mounting base to move relative to the mounting head.
In any of the above technical solutions, further, the adjusting assembly includes an adjusting rod and a lock nut;
one end of the adjusting rod penetrates through the stopper and is rotatably connected with the mounting head, the locking nut is arranged on one side of the stopper, which is far away from the opening, and is in threaded connection with the adjusting rod, and the axis direction of the adjusting rod is parallel to the moving direction;
screwing the locking nut can drive the mounting base to move relative to the mounting head.
In any of the above technical solutions, further, the mounting base is of a U-shaped structure, the second pin holes are correspondingly formed in two opposite sidewalls of the U-shaped structure, and an axial direction of the second pin holes is perpendicular to a moving direction.
In any of the above technical solutions, further, a positioning groove is disposed on one side of the blocking member facing the opening, and the positioning groove is connected with the opening in a matching manner.
In any of the above technical solutions, further, the mounting seat adopts a cylindrical structure;
the adjusting component comprises an adjusting rod, one end of the adjusting rod is in threaded connection with the mounting head, and the middle of the adjusting rod is in rotational connection with the side wall of the tubular structure, or the adjusting component comprises an adjusting rod and a locking nut, one end of the adjusting rod penetrates through the side wall of the tubular structure and is in rotational connection with the mounting head, and the locking nut is arranged on the outer side of the tubular structure and is in threaded connection with the adjusting rod;
the axis direction of the adjusting rod is parallel to the moving direction.
In any of the above technical solutions, further, the second pin holes are correspondingly formed in two opposite sidewalls of the cylindrical structure, and an axial direction of the second pin holes is perpendicular to a moving direction.
In any of the above technical solutions, further, the mounting head is of a flat structure, the first pin hole is formed in the flat structure, and an axial direction of the first pin hole is perpendicular to a moving direction.
A second object of the utility model is to provide a hoisting equipment to when alleviating among the prior art through the bolt assembly fixed, lead to the bolt hole dislocation because of the fly jib dead weight influence, technical problem such as bolt assembly difficulty.
The utility model also provides a hoisting equipment, including foretell jib loading boom structure.
The utility model has the advantages that:
the utility model provides a pair of cargo boom structure, including main arm, fly jib and adjusting part, the main arm is including the installation head that has first bolt hole, and the fly jib is including the mount pad that has second bolt hole, and the mount pad has the cavity, and the installation head can be embedded into to the cavity, and can remove in the cavity. The adjusting component can drive the installation head to slide relative to the installation base, so that a first bolt hole positioned on the installation head is aligned with a second bolt hole positioned on the installation base, namely, the axis of the first bolt hole coincides with the axis of the second bolt hole, so that the installation of the bolt is facilitated, the problem of hole dislocation between the first bolt hole and the second bolt hole is solved, the relative coaxiality of the first bolt hole and the second bolt hole is ensured, the dislocation obstacle during the installation of the bolt is reduced, and the convenience of bolt assembly is improved.
The utility model provides a pair of hoisting equipment, including foretell jib loading boom structure, still include the hoist, jib loading boom structrual installation is on the hoist.
It should be noted that the structure and resulting benefits of the boom structure are described in detail above and thus will not be described in further detail herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a main arm in a boom structure according to an embodiment of the present invention;
fig. 2 is a schematic view of a main arm and an auxiliary arm of the first embodiment of the present invention being dislocated;
fig. 3 is a schematic view of the alignment of the main arm and the auxiliary arm according to the first embodiment of the present invention;
fig. 4 is a schematic view of the main arm and the auxiliary arm provided by the second embodiment of the present invention when they are dislocated.
Icon: 10-a main arm; 11-a mounting head; 12-a groove; 13-a notch; 20-a secondary arm; 21-a mounting seat; 30-adjusting rod; 40-stoppers; 41-positioning grooves; 50-locking nut; 111-a first plug hole; 211-a second plug hole; 212-cavity.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
As shown in fig. 1 to 3, the boom structure provided in the present embodiment includes a main arm 10, an auxiliary arm 20, and an adjusting assembly; the main arm 10 includes a mounting head 11 having a first latch hole 111, the sub arm 20 includes a mount 21 having a second latch hole 211, and the mounting head 11 is embedded in a cavity 212 of the mount 21 and is movable within the cavity 212; the adjustment member is used to move the mounting head 11 and the mounting base 21 relative to each other so that the first latch hole 111 is aligned with the second latch hole 211.
Specifically, the main arm 10 includes a plurality of mounting heads 11, and each of the mounting heads 11 is provided with a first plug hole 111 penetrating in a thickness direction of the mounting head 11. The auxiliary arm 20 comprises a plurality of mounting seats 21, and each mounting seat 21 is provided with a second bolt hole 211 penetrating through the mounting seat in the thickness direction; the mounting base 21 has a cavity 212, and the second plug hole 211 communicates with the cavity 212, and the mounting head 11 can be inserted into the cavity 212. Under the effect of the adjusting component, the mounting head 11 and the mounting base 21 slide relatively, so that when the first plug hole 111 and the second plug hole 211 are coaxially aligned, the plug can be smoothly inserted into the first plug hole 111 and the second plug hole 211, and the assembly of the main arm 10 and the sub-arm 20 is realized through the matching of the plug with the first plug hole 111 and the second plug hole 211.
In actual use, one end of the adjusting component can extend into the cavity 212 and is rotatably connected with the mounting head 11. The adjustment member can drive the mount base 21 to slide relative to the mounting head 11 so that the first latch hole 111 is aligned with the second latch hole 211. The axis of first bolt hole 111 and the axis coincidence of second bolt hole 211, the installation of the bolt of being more convenient for improves the problem that takes place the hole dislocation between first bolt hole 111 and the second bolt hole 211, ensures that the two are coaxial relatively, reduces the dislocation probability when the bolt is installed, increases the convenience of bolt assembly.
Wherein the main arm 10 can include four mounting heads 11, the corresponding sub-arm 20 includes four mounting seats 21, one mounting head 11 corresponds to one mounting seat 21, and one first latch hole 111 corresponds to one second latch hole 211.
With reference to fig. 2 and fig. 3, preferably, an opening communicating with the cavity 212 is formed on a side wall of the mounting base 21, the opening is provided with the stopper 40, and the stopper 40 is connected to the opening; the adjusting component is connected to the stopper 40 and the mounting head 11 respectively, and can drive the mounting base 21 to move relative to the mounting head 11 so as to align the second pin hole 211 with the first pin hole 111.
Specifically, when it is necessary to mount the sub-arm 20, taking the mounting head 11 on the main arm 10 as an example of extending in the horizontal longitudinal direction, the mounting seat 21 on the sub-arm 20 extends in the horizontal transverse direction, and the side of the mounting seat 21 facing the mounting head 11 is provided with an opening communicating with the cavity 212. The blocking piece 40 is arranged at the opening, and the blocking piece 40 is connected to the opening, so that when the mounting base 21 moves, the blocking piece 40 can be driven to move synchronously, or when the blocking piece 40 moves, the mounting base 21 can be driven to move synchronously, and then the mounting base 21 moves relative to the mounting head 11, so that the second pin hole 211 on the mounting base 21 is aligned with the first pin hole 111 on the mounting head 11, and the pin mounting is facilitated.
The stopper 40 can be fixed at the opening of the mounting base 21, that is, the stopper 40 can be fixedly connected to the mounting base 21 by fasteners such as bolts, or can be welded, or the stopper 40 can be fixed to the mounting base 21 by a clamping structure. It is only necessary to connect the stopper 40 with respect to the mounting base 21 and move synchronously with the mounting base 21.
With continued reference to fig. 2 and 3, preferably, the adjustment assembly includes an adjustment rod 30 and a lock nut 50; one end of the adjusting rod 30 penetrates through the stopper 40 and is rotatably connected with the mounting head 11, the lock nut 50 is arranged on one side of the stopper 40, which is far away from the opening, and is in threaded connection with the adjusting rod 30, and the axial direction of the adjusting rod 30 is parallel to the moving direction; screwing the lock nut 50 can drive the mount 21 to move relative to the mounting head 11.
Specifically, one end of the adjusting rod 30 can sequentially pass through the threaded hole of the lock nut 50 and the stopper 40 connected to the opening, extend into the cavity 212 of the mounting base 21, and is rotatably connected to the mounting head 11 located in the cavity 212, and the front end of the adjusting rod 30 cannot be pulled out of the mounting head 11. The adjustment rod 30 is then screwed to the stopper 40. When the locking nut 50 is screwed, the locking nut 50 can move towards the side close to the mounting seat 21 along the length direction of the adjusting rod 30, and then the blocking piece 40 is squeezed and pushed to move towards the side close to the mounting seat 21, and the movement of the blocking piece 40 can drive the mounting seat 21 to move synchronously, so that the mounting seat 21 moves relative to the mounting head 11.
It should be added that, with continued reference to fig. 2, when the stopper 40 is pressed by the lock nut 50, and the mounting seat 21 is driven to move along the length direction of the adjusting rod 30, only the mounting seat 21 can move leftwards relative to the adjusting rod 30. However, if the locking nut 50 is screwed and moves to the right relative to the adjustment rod 30, the locking nut 50 has no pressing force on the stopper 40, and thus the stopper 40 cannot be pushed to move the mounting seat 21 to the left along the adjustment rod 30. Meanwhile, since there is no connection between the lock nut 50 and the adjustment rod 30 except for the contact during the pressing, the lock nut 50 moving leftward cannot drive the stopper 40 to move leftward synchronously. Therefore, the above-described embodiment is limited to the mount 21 moving leftward with respect to the adjustment lever 30.
When the sub-arm 20 is not mounted, the stopper 40 is locked to the adjustment lever 30 by the lock nut 50, and the stopper 40 can abut against the main arm 10 on the side facing the main arm 10. When the adjusting device needs to be used, the lock nut 50 is firstly unscrewed to loosen the stopper 40, and the adjusting device is adjusted to be capable of rotating 90 degrees so as to abut against the opening of the mounting seat 21 on the auxiliary arm 20, then the lock nut 50 is screwed, the stopper 40 is pushed along the length direction of the adjusting rod 30 through the lock nut 50, and then the stopper 40 and the mounting seat 21 are extruded to move relative to the mounting head 11 so as to adjust the alignment of the second plug hole 211 and the first plug hole 111, thereby facilitating the plugging.
Wherein, when the adjustment assembly further comprises the lock nut 50, the adjustment rod 30 can be not only rotatably connected with the mounting head 11, but also screwed, because the stopper 40 and the mounting seat 21 are only in an abutting relationship. Because in this case, the connection relationship of the adjustment lever 30 to the mounting head 11 does not affect the pressing force acting on the stoppers 40 when screwing the lock nut 50.
With reference to fig. 2 and fig. 3, preferably, the mounting base 21 is a U-shaped structure, the second pin holes 211 are correspondingly formed on two opposite sidewalls of the U-shaped structure, and an axial direction of the second pin holes 211 is perpendicular to a moving direction.
Specifically, the cross section of the mounting seat 21 is U-shaped, the U-shaped opening is the opening of the mounting seat 21, the second pin hole 211 penetrates along two side walls of the U-shaped structure, and the mounting head 11 on the main arm 10 extends into the cavity 212 of the U-shaped structure. Meanwhile, the axial direction of the second latch hole 211 is perpendicular to the moving direction of the mounting seat 21, and when the mounting seat 21 moves horizontally and laterally, the axial direction of the second latch hole 211 is a vertical direction.
With continued reference to fig. 2 and 3, preferably, a positioning groove 41 is disposed on a side of the stopper 40 facing the opening, and the positioning groove 41 is connected with the opening in a matching manner.
Specifically, a side of the stopper 40 facing the mounting seat 21 is provided with a positioning groove 41, a length of the positioning groove 41 extends along a length direction of the stopper 40, and a width extends along a width direction of the stopper 40. When the stopper 40 is rotated to be fastened at the opening of the mounting base 21, both side walls of the mounting base 21 are disposed in the positioning groove 41, thereby ensuring stable mounting.
With reference to fig. 1, preferably, the mounting head 11 is a flat structure, the first pin hole 111 is opened on the flat structure, and the axial direction of the first pin hole 111 is perpendicular to the moving direction.
Specifically, a mounting head 11 in a flat structure is led out from the connecting end of the main arm 10, and the flat structure of the mounting head 11 is transited with the main arm 10 through a notch 13 in an arc surface. The flat structure facilitates insertion of the mounting head 11 into the cavity 212 of the mounting base 21 in the U-shaped structure while saving mounting space. First bolt hole 111 runs through the setting along the thickness direction of flat structure, and the axis direction of first bolt hole 111 is parallel with the axis direction of second bolt hole 211, is vertical setting, is perpendicular with the direction of movement of mount pad 21.
The side of the mounting head 11 facing the stopper 40 is provided with a groove 12, so that the arc-shaped sidewall of the mounting head 11 is changed into a planar sidewall, the flatness of the side of the mounting head 11 facing the stopper 40 is increased, the single-line contact between the mounting head 11 and the stopper 40 is changed into at least two-line contact, the contact area between the stopper 40 and the mounting head 11 is increased, and the connection stability between the stopper 40 and the mounting head 11 is ensured. The width of the groove 12 is smaller than the width of the positioning groove 41. When the sub-arm 20 is not used, the stopper 40 is disposed along the length direction of the mounting head 11, and the positioning groove 41 is buckled and covers the groove 12.
The embodiment also provides a hoisting device which comprises a plurality of the hoisting arm structures.
Specifically, the main arm 10 in the boom structure can be mounted on a crane truck, so that the stability of the main arm 10 is improved, and the stability during operation is improved.
It should be noted that the structure and resulting benefits of the boom structure are described in detail above and thus will not be described in further detail herein.
Example two
With reference to fig. 4, the present embodiment further provides a boom structure, which is different from the boom structure of the first embodiment in that the adjusting assembly includes an adjusting rod 30, one end of the adjusting rod 30 is connected to the mounting head 11 by a screw, the middle of the adjusting rod 30 is rotatably connected to the stopper 40, and the adjusting rod 30 and the stopper 40 do not move relative to each other; the axial direction of the adjusting rod 30 is parallel to the moving direction; the screw adjustment lever 30 can drive the mount 21 to move relative to the mounting head 11.
Specifically, one end of the adjusting rod 30 can penetrate through the stopper 40 connected to the opening, extend into the cavity 212 of the mounting base 21, and be in threaded connection with the mounting head 11 located in the cavity 212, at this time, the adjusting rod 30 is rotatably connected with the stopper 40, so that the adjusting rod 30 rotates along the circumferential direction thereof, and the stopper 40 can move synchronously with the adjusting rod 30. When the adjusting rod 30 is screwed, the adjusting rod 30 moves horizontally and transversely relative to the mounting head 11, the stopper 40 moves synchronously with the adjusting rod 30, and then the mounting base 21 is driven to move synchronously, so that the mounting base 21 moves relative to the mounting head 11, and the second pin hole 211 is adjusted to be aligned with the first pin hole 111.
EXAMPLE III
The present embodiment further provides a boom structure, which is different from the boom structure of the first embodiment in that the mounting base 21 has a cylindrical structure; the adjusting component comprises an adjusting rod 30, one end of the adjusting rod 30 is in threaded connection with the mounting head 11, the middle of the adjusting rod 30 is in rotational connection with the side wall of the tubular structure, and the adjusting rod 30 and the side wall cannot move relatively, or the adjusting component comprises an adjusting rod 30 and a locking nut 50, one end of the adjusting rod 30 penetrates through the side wall of the tubular structure and is in rotational connection with the mounting head 11, and the locking nut 50 is arranged on the outer side of the tubular structure and is in threaded connection with the adjusting rod 30; the axial direction of the adjustment lever 30 is parallel to the moving direction.
Specifically, when the mounting seat 21 is in a closed ring shape, the side wall of the mounting seat 21 encloses a cylindrical structure. Taking the horizontal and horizontal extension of the mounting base 21 as an example, the cross section of the mounting base 21 is rectangular, that is, the mounting base 21 includes a horizontal side wall and a vertical side wall, one end of the adjusting rod 30 passes through the vertical side wall of the mounting base 21 and extends into the cavity 212, and is in threaded connection with the mounting head 11, the adjusting rod 30 is rotatably connected with the vertical side wall, and the adjusting rod 30 moves to drive the mounting base 21 to move synchronously. When the adjusting rod 30 is rotated, the adjusting rod 30 can move towards the vertical side wall direction close to the opposite side on the mounting base 21 relative to the mounting head 11, and then the mounting base 21 is driven to move synchronously by the adjusting rod 30, so that the mounting base 21 moves relative to the mounting head 11, and the positions of the second plug pin hole 211 and the first plug pin hole 111 are adjusted to align the two.
It should be added that the method is not limited to the method of "the adjusting assembly includes the adjusting rod 30", but also the method of "the adjusting assembly includes the adjusting rod 30 and the locking nut 50", when the method of "the adjusting assembly includes the adjusting rod 30 and the locking nut 50" is adopted, the adjusting rod 30 sequentially passes through the threaded hole of the locking nut 50 and the vertical side wall of the mounting seat 21 to extend into the cavity 212, and is rotatably connected with the mounting head 11, and the end of the locking nut 50 facing the mounting seat 21 is pressed against the vertical side wall. When screwing the locking nut 50, the locking nut 50 can face one side close to the mounting base 21 along the length direction of the adjusting rod 30, the movement of the locking nut 50 can apply a pushing force to the vertical side wall of the mounting base 21, so that the mounting base 21 is pushed to move synchronously, the mounting base 21 is moved relative to the mounting head 11, and then the second bolt hole 211 and the first bolt hole 111 are adjusted to be aligned.
It should be added that when the stopper 40 is pressed by the lock nut 50 and the mounting base 21 is driven to move along the length direction of the adjustment rod 30, only the mounting base 21 can move leftwards relative to the adjustment rod 30.
Where a locking nut 50 is provided, the adjustment rod 30 may also be threadably coupled to the mounting head 11 to facilitate attachment of the adjustment rod 30 relative to the mounting head 11.
It should be added that if the stopper 40 in fig. 2-4 is considered as a whole with the mounting seat 21, the schematic diagrams in fig. 2-4 can be adapted to the mounting schematic diagram of the mounting seat 21 in the present embodiment in the form of a cylinder, in which the stopper 40 is not numbered and is used as one of the vertical side walls of the mounting seat 21.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A cargo boom structure is characterized by comprising a main boom (10), an auxiliary boom (20) and an adjusting component;
the main arm (10) comprises a mounting head (11) with a first plug hole (111), the auxiliary arm (20) comprises a mounting seat (21) with a second plug hole (211), and the mounting head (11) is embedded in a cavity (212) of the mounting seat (21) and can move in the cavity (212);
the adjusting component is used for enabling the mounting head (11) and the mounting base (21) to move relatively, so that the first plug pin hole (111) and the second plug pin hole (211) are aligned.
2. The boom structure according to claim 1, characterized in that an opening communicating with the cavity (212) is formed in one side wall of the mounting base (21), a stopper (40) is arranged at the opening, and the stopper (40) is connected to the opening;
the adjusting component is respectively connected with the stopper (40) and the mounting head (11), and can drive the mounting base (21) to move relative to the mounting head (11) so as to align the second plug pin hole (211) with the first plug pin hole (111).
3. The boom structure according to claim 2, characterized in that the adjusting assembly comprises an adjusting rod (30), one end of the adjusting rod (30) is in threaded connection with the mounting head (11), the middle part of the adjusting rod (30) is in rotational connection with the stopper (40), and the axial direction of the adjusting rod (30) is parallel to the moving direction;
screwing the adjusting rod (30) can drive the mounting base (21) to move relative to the mounting head (11).
4. The boom structure of claim 2, wherein the adjustment assembly comprises an adjustment rod (30) and a lock nut (50);
one end of the adjusting rod (30) penetrates through the stopper (40) and is rotatably connected with the mounting head (11), the locking nut (50) is arranged on one side of the stopper (40) departing from the opening and is in threaded connection with the adjusting rod (30), and the axis direction of the adjusting rod (30) is parallel to the moving direction;
screwing the lock nut (50) can drive the mounting base (21) to move relative to the mounting head (11).
5. The boom structure according to any one of claims 2-4, characterized in that the mounting base (21) is of a U-shaped structure, the second pin holes (211) are correspondingly formed in two opposite side walls of the U-shaped structure, and the axial direction of the second pin holes (211) is perpendicular to the moving direction.
6. The boom structure according to any of claims 2-4, characterized in that the stopper (40) is provided with positioning grooves (41) on the side facing the opening, and that the positioning grooves (41) are in a fitting connection with the opening.
7. The boom structure according to claim 1, characterized in that the mounting seat (21) is of a cylindrical structure;
the adjusting assembly comprises an adjusting rod (30), one end of the adjusting rod (30) is in threaded connection with the mounting head (11), the middle of the adjusting rod (30) is in rotary connection with the side wall of the tubular structure, or the adjusting assembly comprises an adjusting rod (30) and a locking nut (50), one end of the adjusting rod (30) penetrates through the side wall of the tubular structure and is in rotary connection with the mounting head (11), and the locking nut (50) is arranged on the outer side of the tubular structure and is in threaded connection with the adjusting rod (30);
the axial direction of the adjusting rod (30) is parallel to the moving direction.
8. The boom structure according to claim 7, characterized in that the second pin holes (211) are correspondingly formed in two opposite side walls of the cylindrical structure, and the axial direction of the second pin holes (211) is perpendicular to the moving direction.
9. The boom structure according to any of claims 1-4, 7, 8, characterized in that the mounting head (11) is of a flat construction, the first pin hole (111) opens onto the flat construction, and the axial direction of the first pin hole (111) is perpendicular to the direction of movement.
10. A hoisting device, characterized in that it comprises a boom structure according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282800.1U CN210236931U (en) | 2019-08-08 | 2019-08-08 | Crane boom structure and hoisting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282800.1U CN210236931U (en) | 2019-08-08 | 2019-08-08 | Crane boom structure and hoisting equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210236931U true CN210236931U (en) | 2020-04-03 |
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ID=69965052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921282800.1U Expired - Fee Related CN210236931U (en) | 2019-08-08 | 2019-08-08 | Crane boom structure and hoisting equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210236931U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719184A (en) * | 2021-09-01 | 2021-11-30 | 国网福建省电力有限公司厦门供电公司 | Auxiliary tool for installing cross arm in live-wire operation |
-
2019
- 2019-08-08 CN CN201921282800.1U patent/CN210236931U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719184A (en) * | 2021-09-01 | 2021-11-30 | 国网福建省电力有限公司厦门供电公司 | Auxiliary tool for installing cross arm in live-wire operation |
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