CN210236915U - Crane with a movable crane - Google Patents
Crane with a movable crane Download PDFInfo
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- CN210236915U CN210236915U CN201920726283.6U CN201920726283U CN210236915U CN 210236915 U CN210236915 U CN 210236915U CN 201920726283 U CN201920726283 U CN 201920726283U CN 210236915 U CN210236915 U CN 210236915U
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Abstract
The utility model relates to a crane, crane includes: a vehicle body (1); the rotary platform (2) is arranged on the vehicle body (1) and can rotate in a horizontal plane relative to the vehicle body (1); the crane boom (3) is arranged on the rotary platform (2) and can swing in a pitching mode relative to the rotary platform (2); and the anti-tilting part (4) comprises a rod-shaped part forming a triangular structure with the rotary platform (2) and the crane boom (3), a first connecting part (43) arranged on the rod-shaped part and used for connecting the rotary platform (2), and a second connecting part (44) arranged on the rod-shaped part and used for connecting the crane boom (3). By the aid of the technical scheme, two ends of the rod-shaped part of the anti-tilting part are connected with the crane boom and the rotary platform respectively, and the problem that the crane boom can only be prevented from tilting along one direction by the anti-tilting device in the prior art is solved.
Description
Technical Field
The utility model relates to an engineering machine tool equipment field particularly, relates to a hoist.
Background
Fig. 1 shows a schematic structural diagram of a related art crane. As shown in fig. 1, the related art crane includes a vehicle body 1 ', a swing platform 2 ' rotatably mounted on the vehicle body 1 ' in a horizontal plane, a boom 3 ' tiltably mounted on the swing platform 2 ', and a driving device for driving the boom 3 ' to rotate in a first direction with respect to the swing platform 2 '. The driving device comprises a rotatable drum and a rope-like member wound on the drum, the rope-like member being connected to the boom 3 ', the rope-like member pulling the boom 3' to rotate in a first direction when the drum is rotated to wind the rope-like member on the drum. In order to prevent the jib 3 from tipping over on rotation in the first direction after rotation to a position perpendicular to the slewing platform 2 ', the crane further comprises an anti-tipping device comprising a rod-shaped member 4 ', the jack 3 and the slewing platform 2 ' forming a triangular structure for preventing the jib 3 ' from tipping over on rotation in the first direction after rotation to a position perpendicular to the slewing platform 2 '. The first end of the rod-shaped component 4 is abutted against the rotary platform 2 ', and the second end of the rod-shaped component 4 ' is connected with the crane arm 3 ' through a pin shaft. The rod-shaped part 4 ' is thus only able to prevent the boom 3 ' from tipping in a first direction, whereas the rod-shaped part 4 ' is separated from the slewing platform 2 ' when the boom 3 ' is tipped in a second direction opposite to the first direction.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a crane to improve the anti-overturning device that exists among the prior art and only can prevent the problem that the jib loading boom emptys along a direction.
According to the utility model discloses an aspect of the embodiment, the utility model provides a crane, crane includes:
a vehicle body;
the rotary platform is arranged on the vehicle body and can rotate in a horizontal plane relative to the vehicle body;
the cargo boom is arranged on the rotary platform and can swing in a pitching way relative to the rotary platform; and
the anti-tilting part comprises a rod-shaped part, a first connecting part and a second connecting part, wherein the rod-shaped part forms a triangular structure with the rotary platform and the cargo boom, the first connecting part is arranged on the rod-shaped part and is used for connecting the rotary platform, and the second connecting part is arranged on the rod-shaped part and is used for connecting the cargo boom.
Optionally, the spacing between the first and second connection portions is adjustable.
Optionally, the anti-roll portion further comprises:
a first screw connection structure for connecting the rod-shaped member and the first connection portion and for adjusting a distance between the first connection portion and the rod-shaped member; or
And a second screw connection structure for connecting the rod-shaped member and the second connection portion and for adjusting a distance between the second connection portion and the rod-shaped member.
Optionally, the first connecting part is detachably connected with the rotary platform, and the second connecting part is hinged with the crane arm.
Optionally, the crane further comprises:
the third connecting part is arranged on the rotary platform and is used for connecting the first connecting part;
and the guide rail is arranged on the rotary platform, extends towards the third connecting part along the linear direction and is used for guiding the first connecting part towards the third connecting part when the crane arm swings relative to the rotary platform.
Optionally, the anti-roll portion further comprises a sliding member slidably engaged with the guide rail, the sliding member being attached to an end of the rod member adjacent the guide rail, the spacing between the sliding member and the second attachment portion being adjustable with swinging movement of the boom relative to the swing platform.
Optionally, the rod-shaped member comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body and a piston rod which can extend from a first end of the cylinder body, the first connecting portion is connected to the first end of the cylinder body, the second connecting portion is connected to a second end of the cylinder body, and the sliding member is connected to one end of the piston rod, which is far away from the cylinder body.
Optionally, the rod-shaped member further comprises a connecting rod, a first end of the connecting rod is connected with the second end of the cylinder body, and a second end of the connecting rod is connected with the second connecting portion.
Optionally, a connecting structure for connecting the third connecting portion is provided on the sliding member.
Optionally, the crane further comprises a driving device for driving the boom to swing relative to the revolving platform, and the driving device comprises:
a winding drum, which is arranged on the rotary platform,
and the rope-shaped component is wound on the winding drum and is connected with the cargo boom, and the rope-shaped component and the anti-tilting part are positioned on the same side of the cargo boom.
By the aid of the technical scheme, two ends of the rod-shaped part of the anti-tilting part are connected with the crane boom and the rotary platform respectively, and the problem that the crane boom can only be prevented from tilting along one direction by the anti-tilting device in the prior art is solved.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 shows a schematic construction of a crane of the related art;
fig. 2 shows a schematic structural diagram of a crane according to an embodiment of the invention;
fig. 3 shows a partial enlarged view of a crane according to an embodiment of the invention; and
fig. 4 shows another enlarged partial view of a crane according to an embodiment of the invention.
In the figure:
1. a vehicle body; 2. a rotating platform; 3. a cargo boom; 4. an anti-roll portion; 41. a hydraulic cylinder; 42. a connecting rod; 43. a first connection portion; 44. a second connecting portion; 45. a sliding member; 5. a variable amplitude pulling plate; 6. a mast; 7. a guide rail; 81. a first pin shaft; 82. a second pin shaft; 9. and a third connecting portion.
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. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 2 shows a schematic structural diagram of the crane of the present embodiment, fig. 3 shows a partially enlarged view of the crane of the present embodiment, and fig. 4 shows another partially enlarged view of the crane of the present embodiment.
As shown in fig. 2 to 4, the crane of the present embodiment includes a vehicle body 1, a swing platform 2 mounted on the vehicle body 1 and capable of rotating in a horizontal plane with respect to the vehicle body 1, a boom 3 mounted on the swing platform 2 and capable of swinging in a pitch direction with respect to the swing platform 2, and an anti-tilt portion 4 for preventing the boom 3 from tilting, the anti-tilt portion 4 including a rod-shaped member forming a triangular structure with the swing platform 2 and the boom 3, a first connecting portion 43 provided on the rod-shaped member for connecting the swing platform 2, and a second connecting portion 44 provided on the rod-shaped member for connecting the boom 3.
The shaft-like part of anti-tilt portion 4 forms the triangle-shaped structure with rotary platform 2 and jib loading boom 3, and the both ends of shaft-like part are connected with jib loading boom 3 and rotary platform 2 respectively, therefore anti-tilt portion 4 can enough prevent that jib loading boom 3 from toppling over towards the one side that is equipped with anti-tilt portion 4, also can prevent that jib loading boom 3 from toppling over towards the one side of keeping away from anti-tilt portion 4.
The crane further comprises a driving device for driving the cargo boom 3 to swing relative to the rotary platform 2, the driving device comprises a winding drum arranged on the rotary platform 2 and a rope-shaped component wound on the winding drum and connected with the cargo boom 3, and the rope-shaped component and the anti-tilting part 4 are positioned on the same side of the cargo boom 3. The crane also comprises a mast 6 and a luffing plate 5 connecting the mast 6 and the jib 3.
The rod member 4 includes a hydraulic cylinder 41 and a connecting rod 42, and the hydraulic cylinder 41 includes a cylinder body and a piston rod 41a that can be extended from a first end of the cylinder body. The first connection portion 43 is connected to a first end of the cylinder. A first end of the connecting rod 42 is connected to a second end of the cylinder, and a second end of the connecting rod 42 is connected to the second connecting portion 44.
The first connecting part 43 is connected to the third connecting part 9 of the revolving platform 2 by a first pin 81, and the second connecting part 44 is connected to the jib 3 by a second pin 82.
The overall length of the anti roll portion 4 can be adjusted, i.e. the distance between the first connection portion 43 and the second connection portion 44, so that the anti roll portion 4 can be adjusted accordingly according to the specific dimensions of the crane.
In this embodiment, the first connection portion 43 is connected to the first end of the cylinder body of the hydraulic cylinder 41 by a first screw connection structure, and the first screw connection structure may be used to adjust the distance between the first connection portion 43 and the cylinder body, thereby adjusting the distance between the first connection portion 43 and the second connection portion 44.
In some embodiments, the second connection portion 44 is connected to the link 42 by a second threaded connection structure, which may be used to adjust the spacing between the second connection portion 44 and the link 42, thereby adjusting the spacing between the first connection portion 43 and the second connection portion 44.
In this embodiment, the first connecting portion 43 is detachably connected to the swing platform 2, and the second connecting portion 44 is hinged to the boom 3.
The revolving platform 2 is provided with a third connecting portion 9 for connecting the first connecting portion 43 and a guide rail 7 extending in a linear direction toward the third connecting portion 9, and the guide rail 7 is used for guiding the first connecting portion 43 toward the third connecting portion 9 when the boom 2 swings with respect to the revolving platform 2.
The anti-roll portion 4 further comprises a sliding member 45 connected to an end of the piston rod 41a of the hydraulic cylinder 41 remote from the cylinder body, the sliding member 45 is slidably engaged with the guide rail 7, and the piston rod 41a extends and contracts relative to the cylinder body during the swinging of the boom 3 relative to the swing platform 2, so that the distance between the sliding member 45 and the second connecting portion 44 can be adjusted along with the swinging of the boom 3 relative to the swing platform 2, thereby moving the sliding member 45 along the guide rail 7.
The sliding part 45 is provided with a connecting structure for connecting the third connecting part 9, the connecting structure comprises a first pin shaft hole, the first connecting part 43 is provided with a second pin shaft hole, the third connecting part 9 is provided with a third pin shaft hole, and after the first connecting part 43 is guided to the position matched with the third connecting part 9, the first pin shaft 81 is arranged in the first pin shaft hole, the second pin shaft hole and the third pin shaft hole in a penetrating manner so as to connect the first connecting part 43, the sliding part 45 and the third connecting part 9 together. The anti roll 4 can then also hold the boom 3 in a predetermined position after the hydraulic cylinder has been depressurized.
The first end of the cylinder body of the hydraulic cylinder 41 is connected with the first connecting part 43 through a threaded connection structure, the whole length of the anti-tilting part 4 can be finely adjusted by controlling the screwing depth of the first connecting part 43 along the threads, the threads are locked after adjustment, the synchronism and stress balance of the anti-tilting part can be conveniently controlled, and readjustment is not needed. In the specific assembling process, the end part of the piston rod 41 of the hydraulic cylinder 4 is provided with the sliding component 45, through the expansion and contraction of the piston rod 41a of the hydraulic cylinder 41, the sliding component 45 slides to the position matched with the third connecting part 9 along the guide rail 7, the automatic centering of the first connecting part 43 and the third connecting part 9 on the rotary platform 2 is realized, then the first pin shaft 81 is assembled, wherein the pin shaft holes on the sliding component 45, the first connecting part 43 and the third connecting part 9 are aligned, and the positioning is accurate. The inner diameter of the pin hole of the sliding member 45 is larger than the inner diameter of the pin hole of the third connecting portion 9 and the inner diameter of the pin hole of the first connecting portion 43, so that the manufacturing error is contained, and the installation is convenient. After the two ends of the anti-tilting part 4 are respectively connected with the cargo boom 3 and the rotary platform 2 through the first pin shaft 81 and the second pin shaft 82, the hydraulic cylinder 41 releases pressure, and the anti-tilting part 4 can protect the safety of the main boom tilting backwards and forwards during the operation of the crane.
The embodiment relates to a boom anti-tilting device installed between a boom 3 of a crawler crane and a rotary platform 2, wherein an anti-tilting part 4 mainly comprises a connecting rod 42 and a telescopic hydraulic cylinder 41, a first connecting part 43 is assembled at the first end of a cylinder body of the hydraulic cylinder 41, a sliding part 45 is arranged at the end part of a piston rod 41a, the first connecting part 43 and a third connecting part 9 on the rotary platform 2 are automatically positioned and centered by matching a guide rail 7 through adjusting the telescopic action of the piston rod 41a, and fixed pin shafts are assembled at the two ends of the anti-tilting part 4, so that the boom can be protected against backward tilting dangers during crane operation and forward tilting dangers, the maximum elevation angle of the boom can reach 90 degrees, and the boom is safer and more reliable during hoisting. The self-positioning of installation can be realized through the direction slide in the in-process of assembly, and convenient assembling is swift.
1) The anti-tilting part 4 is connected with the boom 3 through a second pin shaft. In the process of lifting the boom 3, the sliding component 45 at the end part of the piston rod 41a of the hydraulic cylinder 41 can be connected with the third connecting part 9 on the rotary platform through a pin shaft, the main boom is prevented from tilting backwards through the pressure of the hydraulic cylinder 41, and the anti-tilting rod bears the pressure; when the cargo boom 3 reaches 90 degrees, the sliding part 45, the first connecting part 43 and the third connecting part 9 are connected through the pin shaft, the hydraulic cylinder releases pressure, the effect of preventing the cargo boom 3 from tilting forwards and backwards is realized, and the backward tilting prevention rod bears pressure; two ends of the rod-shaped component are respectively connected with the cargo boom 3 and the rotary platform 2 through pin shafts, so that the safety of the cargo boom 3 during backward tilting and forward tilting angle changes during crane operation is protected.
2) The first end of the cylinder body of the hydraulic cylinder 41 is connected with the first connecting part 43 through a threaded connection structure, the whole length of the anti-roll part 4 is finely adjusted by controlling the screwing depth of the first connecting part 43 along the threads, the threads are locked after adjustment, the synchronism and stress balance of the two anti-roll parts 4 are conveniently controlled, and readjustment is not needed.
3) The centers of the sliding part 45, the arc at the end part of the guide rail 7, the pin shaft hole of the first connecting part 43 and the pin shaft hole of the third connecting part 9 are collinear, and the positioning is accurate; the inner diameter of the pin shaft hole in the sliding member 45 is larger than the inner diameters of the pin shaft hole in the first connecting portion and the pin shaft hole in the third connecting portion, so that manufacturing errors are contained, and the installation is convenient.
The above description is only exemplary embodiments of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A crane, comprising:
a vehicle body (1);
the rotary platform (2) is arranged on the vehicle body (1) and can rotate in a horizontal plane relative to the vehicle body (1);
a boom (3) mounted on the revolving platform (2) and capable of pitching and swinging relative to the revolving platform (2); and
the anti-tilting part (4) comprises a rod-shaped part forming a triangular structure with the rotary platform (2) and the crane boom (3), a first connecting part (43) arranged on the rod-shaped part and used for connecting the rotary platform (2), and a second connecting part (44) arranged on the rod-shaped part and used for connecting the crane boom (3).
2. A crane according to claim 1, characterized in that the distance between the first connection portion (43) and the second connection portion (44) is adjustable.
3. A crane according to claim 2, wherein the anti-tip section (4) further comprises:
a first screw connection structure for connecting the rod-like member and the first connection portion (43) and for adjusting a spacing between the first connection portion (43) and the rod-like member; or
A second screw connection structure for connecting the rod-like member and the second connection portion (44) and for adjusting a spacing between the second connection portion (44) and the rod-like member.
4. A crane according to claim 1, characterized in that the first connection part (43) is detachably connected to the slewing platform (2) and the second connection part (44) is hinged to the jib (3).
5. The crane of claim 4, further comprising:
the third connecting part (9) is arranged on the rotary platform (2) and is used for connecting the first connecting part (43);
a guide rail (7) which is provided on the slewing platform (2), extends in a linear direction toward the third connection portion (9), and guides the first connection portion (43) toward the third connection portion (9) when the boom (3) swings relative to the slewing platform (2).
6. A crane according to claim 5, wherein the anti-roll part (4) further comprises a sliding member (45) in sliding engagement with the guide rail (7), the sliding member (45) being attached to an end of the rod-shaped member adjacent to the guide rail (7), the spacing between the sliding member (45) and the second attachment part (44) being adjustable with swinging of the boom (3) relative to the swing platform (2).
7. A crane according to claim 6, wherein the rod-shaped member comprises a hydraulic cylinder (41), the hydraulic cylinder (41) comprising a cylinder body and a piston rod (41a) extendable from a first end of the cylinder body, the first connection (43) being connected to the first end of the cylinder body, the second connection (44) being connected to a second end of the cylinder body, and the sliding member (45) being connected to an end of the piston rod (41a) remote from the cylinder body.
8. A crane according to claim 7, wherein the rod-shaped member further comprises a connecting rod (42), a first end of the connecting rod (42) being connected to a second end of the cylinder, a second end of the connecting rod (42) being connected to the second connection (44).
9. A crane as claimed in claim 7, characterized in that the sliding part (45) is provided with a connection structure for connecting the third connection part (9).
10. A crane according to claim 1, further comprising a drive for swinging the jib (3) relative to the slewing platform (2), the drive comprising:
a reel mounted on the rotary platform (2),
and the rope-shaped component is wound on the winding drum and is connected with the lifting arm (3), and the rope-shaped component and the anti-tilting part (4) are positioned on the same side of the lifting arm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726283.6U CN210236915U (en) | 2019-05-21 | 2019-05-21 | Crane with a movable crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920726283.6U CN210236915U (en) | 2019-05-21 | 2019-05-21 | Crane with a movable crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210236915U true CN210236915U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920726283.6U Active CN210236915U (en) | 2019-05-21 | 2019-05-21 | Crane with a movable crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210236915U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027989A (en) * | 2019-05-21 | 2019-07-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane |
-
2019
- 2019-05-21 CN CN201920726283.6U patent/CN210236915U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110027989A (en) * | 2019-05-21 | 2019-07-19 | 徐工集团工程机械股份有限公司建设机械分公司 | Crane |
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