CN211078213U - Upper side light load single welding seam crane boom - Google Patents
Upper side light load single welding seam crane boom Download PDFInfo
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- CN211078213U CN211078213U CN201922000026.7U CN201922000026U CN211078213U CN 211078213 U CN211078213 U CN 211078213U CN 201922000026 U CN201922000026 U CN 201922000026U CN 211078213 U CN211078213 U CN 211078213U
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Abstract
The utility model relates to an upside light load single weld seam jib loading boom, it includes inner boom (1) and outer arm (2), and inner boom (1) is along the direction suit of stretching along the cavity of outer arm (2) in outer arm (2), and inner boom (1) and outer arm (2) are the cavity cylindrical body that the butt joint limit that is rolled over into by the steel sheet is located the upper flank intermediate position respectively, and inner boom (1) and outer arm (2) weld into wholly at the butt joint limit position in the middle of the upper flank respectively. It has high strength, light weight, difficult welding and high use reliability. It has high strength, light weight, difficult welding and high use reliability. The welding seam is only arranged in the middle of the upper side surface of the crane boom, so that the crane boom is of an integral structure welded in the middle of the upper side surface, the bearing capacity on the welding seam is greatly reduced, the problem of open welding caused by bearing of the welding seam is avoided, and the safety and reliability of the crane boom are directly improved.
Description
Technical Field
The utility model relates to a hoisting equipment, concretely relates to jib loading boom.
Background
The crane boom is a key part of the crane, in order to improve the lifting capacity, a crane manufacturer needs to adopt various methods to reduce the weight of the crane boom, but the strength of the crane boom cannot be reduced on the premise of reducing the weight of the crane boom, so practical and reasonable improvement needs to be carried out on the crane boom structure. Most of crane booms of the existing cranes are processed by adopting a corner welding mode, the welding seams of the crane booms are mostly arranged at the corner positions of the crane booms, the stress of the welding seams is large, the tensile strength and the compressive strength are both smaller than those of other non-welding positions of the crane booms, and the strength of the crane booms is seriously influenced. Therefore, the crane arm with multiple welding seams is easy to open and weld in the using process to cause accidents, and is not safe and reliable enough to use.
Disclosure of Invention
The utility model aims at providing an intensity is high, and light in weight is difficult to open and welds, uses safe and reliable's upside light load single weld jib loading boom.
The technical solution of the utility model is that: the inner arm is sleeved in the outer arm along the extending direction of the cavity of the outer arm, two upper corner positions of the rear end part of the inner arm are respectively provided with an upper sliding wear-resistant block in sliding fit with two inner corner positions of the upper side of the outer arm, a lower sliding wear-resistant block in sliding fit with the outer wall of the lower side of the inner arm is arranged on the inner wall of the lower side of the front end part of the outer arm, the inner arm and the outer arm are respectively hollow cylindrical bodies with butt joint edges folded by steel plates located at the middle positions of the upper side, and the inner arm and the outer arm are respectively welded into a whole at the butt joint edge positions in the middle of the upper side.
The technical effects of the utility model are that: it has high strength, light weight, difficult welding and high use reliability. The welding seam is only arranged in the middle of the upper side surface of the crane boom, so that the crane boom is of an integral structure welded in the middle of the upper side surface, the bearing capacity on the welding seam is greatly reduced, the problem of open welding caused by bearing of the welding seam is avoided, and the safety and reliability of the crane boom are directly improved. The lower side of the cargo boom is designed into the arc shape or the polygonal shape, so that the material is saved, the mechanical strength of the cargo boom is improved, the integral tensile strength and yield strength of the cargo boom are improved to the maximum extent, the bending resistance and the bending resistance are improved, and the using effect is better.
Drawings
Fig. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of a second embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view of the embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of the embodiment of the present invention;
fig. 5 is a schematic diagram of a five-sectional structure according to an embodiment of the present invention.
Detailed Description
In the first embodiment, as shown in fig. 1, the inner arm includes an inner arm 1 and an outer arm 2, the inner arm 1 is sleeved in the outer arm 2 along the extending direction of the hollow cavity of the outer arm 2, two upper corners of the rear end of the inner arm 1 are respectively provided with an upper sliding wear-resistant block 3 in sliding fit with two inner corners of the upper side of the outer arm 2, a lower sliding wear-resistant block 4 in sliding fit with the outer wall of the lower side of the inner arm 1 is arranged on the inner wall of the lower side of the front end of the outer arm 2, the inner arm 1 and the outer arm 2 are respectively hollow cylindrical bodies with butt-joint edges at the middle positions of the upper sides, which are formed by folding steel plates, and the inner arm 1 and the outer arm 2 are respectively welded into a whole at the butt-.
The butt joint edges of the inner arm 1 and the outer arm 2 are respectively arranged at the middle positions of the upper side surfaces of the inner arm 1 and the outer arm 2, so that the strength of the left side and the right side of the inner arm 1 and the strength of the right side of the outer arm 2 are consistent, the edge area with concentrated bearing capacity is avoided, and the tensile force, the pressure and the impact force to a welding line are reduced.
The butt joint edge positions of the inner arm 1 and the outer arm 2 are respectively provided with welding grooves, and the transverse sections of the parts of the welding seams, which protrude out of the upper surfaces of the inner arm 1 and the outer arm 2, are small semi-circles so as to ensure that the welding seams have enough welding strength.
The middle position of the lower side surfaces of the inner arm 1 and the outer arm 2 is a plane 5 extending along the cavity direction of the inner arm 1, the positions of the two sides of the plane 5 are respectively folded upwards to form a slope 6 with one side connected with the plane 5 being low and the other side being high, the edges of the two slopes 6 far away from the plane 5 are folded upwards to form a left vertical surface 7 and a right vertical surface 7 which are perpendicular to the plane 5 and are parallel to each other, the opposite positions of the upper sides of the two vertical surfaces 7 are oppositely bent in a 90-degree arc shape, the edges are connected in a welding mode, the surfaces of the upper sliding wear-resistant blocks 3 and the two inner angles of the upper side of the outer arm 2 are 90-degree arc surfaces, and one side of the inner wall of the two slope surfaces 6 at.
In the second embodiment, as shown in fig. 2, the difference from the first embodiment is that the lower side surfaces of the inner arm 1 and the outer arm 2 are 180-degree arc surfaces 8 axially extending along the cavity of the inner arm 1, the side portions of both sides of the 180-degree arc surfaces 8 extend upward in parallel to form two vertical surfaces 7, the upper sides of the two vertical surfaces 7 are oppositely bent in a 90-degree arc shape, the side portions are oppositely welded, the surfaces of the upper sliding wear-resistant blocks 3 matching with the two inner corners of the upper side of the outer arm 2 are 90-degree arc surfaces, the high points of both sides of the 180-degree arc surface 8 at the front end of the outer arm 2 are respectively provided with a lower sliding wear-resistant block 4, or the 180-degree arc surface 8 at the front end of the outer arm 2 is provided with a lower sliding wear-resistant block 4 of.
In the third embodiment, as shown in fig. 3, the difference from the first embodiment is that the lower sides of the inner arm 1 and the outer arm 2 are 180-degree arc surfaces 8 axially extending along the cavity of the inner arm 1, the edges on both sides of the 180-degree arc surfaces 8 extend upward in parallel to form two vertical surfaces 7 of the inner arm 1, the opposite positions of the upper sides of the two vertical surfaces 7 are bent in opposite right angles, the edges are welded to each other, the surfaces of the upper sliding wear-resistant blocks 3 matching with the two inner angles on the upper side of the outer arm 2 are right-angled surfaces, the high points on both sides of the 180-degree arc surface 8 on the front end of the outer arm 2 are respectively provided with a lower sliding wear-resistant block 4, or the 180-degree arc surface 8 on the front end of the outer arm 2 is provided with a lower sliding wear-resistant.
In the fourth embodiment, as shown in fig. 4, the difference from the first embodiment is that the middle position of the lower side surfaces of the inner arm 1 and the outer arm 2 is folded downward, two sides form slopes 6 with low folded positions and high opposite side positions, the high sides of the two slopes 6 are respectively extended upward in parallel to form a left vertical surface 7 and a right vertical surface 7, the opposite positions of the upper sides of the two vertical surfaces 7 are bent in a 90-degree arc shape, the sides are welded and connected oppositely, the surfaces of the upper sliding wear-resistant blocks 3, which are matched with the two inner angles of the upper side of the outer arm 2, are 90-degree arc surfaces, and the high positions of the two slopes 6 on the inner wall of the front end of the outer arm 2 are respectively provided.
In the fifth embodiment, as shown in fig. 5, the difference from the first embodiment is that the middle position of the lower side surfaces of the inner arm 1 and the outer arm 2 is folded downward, two sides form a slope 6 with a low folded position and a high position on the opposite side, the high edges of the two slopes 6 are respectively extended upward in parallel to form a left vertical surface 7 and a right vertical surface 7, the opposite positions of the upper sides of the two vertical surfaces 7 are bent in opposite right angles, the edges are connected by welding, the surfaces of the upper sliding wear-resistant blocks 3 matching with the two inner angles on the upper side of the outer arm 2 are right-angled surfaces, and the high positions of the two slope 6 on the inner wall of the front end of the outer arm 2 are respectively provided.
Claims (8)
1. Upside light load list welding seam jib loading boom, it includes inner boom (1) and outer boom (2), inner boom (1) is along the direction suit of stretching in outer boom (2) cavity in outer boom (2), two upper corner positions of inner boom (1) rear end portion are equipped with respectively with two interior angle position looks sliding fit's of outer boom (2) upside wear-resisting piece (3) that slide, be equipped with on the downside inner wall of outer boom (2) front end portion with the downside outer wall looks sliding fit's of inner boom (1) wear-resisting piece (4) that slide down, its characterized in that: the inner arm (1) and the outer arm (2) are hollow cylindrical bodies with butt joint edges formed by folding steel plates and located in the middle of the upper side surface, and the inner arm (1) and the outer arm (2) are welded into a whole in the butt joint edge position in the middle of the upper side surface.
2. The upper side light load single weld crane boom according to claim 1, characterized in that the butt edges of the inner boom (1) and the outer boom (2) are arranged in the middle of the upper sides of the inner boom (1) and the outer boom (2), respectively.
3. The upper side light load single weld crane boom according to claim 1, characterized in that the butt joint edge positions of the inner boom (1) and the outer boom (2) are respectively provided with a welding groove, and the transverse section of the part of the welding seam protruding out of the upper surfaces of the inner boom (1) and the outer boom (2) is a small semicircle.
4. The upper side light load single weld seam jib crane boom according to claim 1, characterized in that the middle position of the lower side of the inner boom (1) and the outer boom (2) is a plane (5) extending along the cavity direction of the inner boom (1), the positions of both sides of the plane (5) are respectively folded upwards to form a slope (6) with a low side and a high side connected with the plane (5), the edges of the two slopes (6) far away from the plane (5) are folded upwards to form a left vertical surface and a right vertical surface (7) which are perpendicular to the plane (5) and parallel to each other, the opposite positions of the upper sides of the two vertical surfaces (7) are bent towards a 90-degree circular arc shape, the edge parts are relatively welded, the surfaces of the upper sliding wear-resistant blocks (3) and the two inner angles on the upper side of the outer arm (2) are matched with each other and are 90-degree arc surfaces, and one side of the inner wall of the two sloping surfaces (6) at the front end part of the outer arm (2) far away from the plane (5) is respectively provided with a lower sliding wear-resistant block (4).
5. The upper side light load single weld seam crane boom as claimed in claim 1, characterized in that the lower side surfaces of the inner boom (1) and the outer boom (2) are 180 degree arc surfaces (8) axially along the extending direction of the inner boom (1) cavity, the edge parts at both sides of the 180 degree arc surfaces (8) are upwards extended in parallel to form a left vertical surface (7) and a right vertical surface (7), the opposite positions of the upper sides of the two vertical surfaces (7) are bent in 90 degree arc shape, the edge parts are oppositely welded, the surfaces of the upper sliding wear-resistant blocks (3) matched with two inner angles on the upper side of the outer arm (2) are 90-degree arc surfaces, the high points of two sides of the 180-degree arc surface (8) at the front end part of the outer arm (2) are respectively provided with a lower sliding wear-resistant block (4), or a lower sliding wear-resistant block (4) with an integral structure is arranged on a 180-degree arc surface (8) at the front end part of the outer arm (2).
6. The upper side light load single weld seam crane boom as claimed in claim 1, characterized in that the lower side surfaces of the inner boom (1) and the outer boom (2) are 180 degree arc surfaces (8) axially along the extending direction of the inner boom (1) cavity, the edge parts at both sides of the 180 degree arc surfaces (8) are upwards extended in parallel to form two left and right vertical surfaces (7) of the inner boom (1), after the opposite positions of the upper sides of the two vertical surfaces (7) are bent in opposite right angles, the edge parts are oppositely welded, the surfaces of the upper sliding wear-resistant blocks (3) matched with two inner angles on the upper side of the outer arm (2) are right-angled surfaces, the high points of two sides of a 180-degree arc surface (8) at the front end part of the outer arm (2) are respectively provided with a lower sliding wear-resistant block (4), or a lower sliding wear-resistant block (4) with an integral structure is arranged on a 180-degree arc surface (8) at the front end part of the outer arm (2).
7. The upper-side light-load single-weld crane boom as claimed in claim 1, wherein the middle positions of the lower side surfaces of the inner boom (1) and the outer boom (2) are folded downwards, two sides form slopes (6) with low folded positions and high opposite side positions, the high sides of the two slopes (6) are respectively extended upwards in parallel to form a left vertical surface and a right vertical surface (7), the opposite positions of the upper sides of the two vertical surfaces (7) are bent towards a 90-degree circular arc shape, the sides are welded and connected oppositely, the surfaces of the upper sliding wear-resistant blocks (3) and the two inner corners of the upper side of the outer boom (2) are matched to form a 90-degree circular arc surface, and the high positions of the two slopes (6) on the inner wall of the front end of the outer boom (2) are respectively provided with a.
8. The upper-side light-load single-weld crane boom as claimed in claim 1, wherein the middle positions of the lower sides of the inner boom (1) and the outer boom (2) are folded downwards, two sides form slopes (6) with low folded positions and high opposite side positions, the high sides of the two slopes (6) are respectively extended upwards in parallel to form a left vertical surface and a right vertical surface (7), the opposite positions of the upper sides of the two vertical surfaces (7) are bent towards a right angle, the sides are welded to each other, the surfaces of the upper sliding wear-resistant blocks (3) matched with the two inner angles of the upper side of the outer boom (2) are right-angled surfaces, and the high positions of the two slopes (6) on the inner wall of the front end of the outer boom (2) are respectively provided with a lower sliding wear-resistant block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000026.7U CN211078213U (en) | 2019-11-19 | 2019-11-19 | Upper side light load single welding seam crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000026.7U CN211078213U (en) | 2019-11-19 | 2019-11-19 | Upper side light load single welding seam crane boom |
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| Publication Number | Publication Date |
|---|---|
| CN211078213U true CN211078213U (en) | 2020-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922000026.7U Active CN211078213U (en) | 2019-11-19 | 2019-11-19 | Upper side light load single welding seam crane boom |
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| CN (1) | CN211078213U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733979A (en) * | 2019-11-19 | 2020-01-31 | 姚运文 | Upper side light load single welding seam crane boom |
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2019
- 2019-11-19 CN CN201922000026.7U patent/CN211078213U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733979A (en) * | 2019-11-19 | 2020-01-31 | 姚运文 | Upper side light load single welding seam crane boom |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220831 Address after: 157000 room 103, Building 29, phase I, poly Jiangshan Yue, Dong'an District, Mudanjiang City, Heilongjiang Province Patentee after: Heilongjiang Shenchi Special Vehicle Manufacturing Co.,Ltd. Address before: 157000 81-5, Langlang Road, Xi'an District, Mudanjiang City, Heilongjiang Province Patentee before: Yao Yunwen |
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| TR01 | Transfer of patent right |