CN211078264U - Side light-load welding seam crane boom - Google Patents
Side light-load welding seam crane boom Download PDFInfo
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- CN211078264U CN211078264U CN201922000689.9U CN201922000689U CN211078264U CN 211078264 U CN211078264 U CN 211078264U CN 201922000689 U CN201922000689 U CN 201922000689U CN 211078264 U CN211078264 U CN 211078264U
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Abstract
The utility model relates to a side light load welding seam jib loading boom, it includes inner boom (1) and outer arm (2), inner boom (1) is along the edgewise direction suit of stretching of outer arm (2) cavity in outer arm (2), inner boom (1) and outer arm (2) constitute by the last arm body and the lower arm body two parts of folding into the flute profile respectively, the cavity is buckled relatively with the lower arm body notch to the upper arm body of inner boom (1) and outer arm (2) to the butt joint limit position of side welds into wholly about. It has high strength, light weight, difficult welding and high use reliability. The welding seam is arranged on two side surfaces of the crane boom, so that the crane boom forms a structure that the upper part and the lower part are welded on the side surfaces, the bearing capacity on the welding seam is reduced by 40 percent, the open welding phenomenon caused by long-term bearing of the welding seam is effectively avoided, and the reliability and the safety of the crane boom are improved.
Description
Technical Field
The utility model relates to a hoisting equipment, concretely relates to jib loading boom.
Background
The crane boom is an important part of the crane, and the lighter the self weight of the crane boom is, the better the lifting capacity is, so that crane manufacturers need to adopt various methods to reduce the self weight of the crane boom. However, the weight of the boom cannot be reduced while the strength of the boom cannot be reduced, so that reasonable improvements in the boom structure are required. Most of crane booms of the existing cranes are processed by adopting a welding mode, and for the convenience of processing and manufacturing, 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 the side light load welding seam jib loading boom that the reliability is high.
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 composed of an upper arm body and a lower arm body which are folded into a groove shape, the upper arm body and the lower arm body of the inner arm and the outer arm are oppositely buckled into the cavity, and the butt joint edge positions of the left side and the right side are welded into a whole.
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 arranged on two side surfaces of the crane boom, so that the crane boom forms a structure that the upper part and the lower part are welded on the side surfaces, the bearing capacity on the welding seam is reduced by 40 percent, the open welding phenomenon caused by long-term bearing of the welding seam is effectively avoided, and the reliability and the safety of the crane boom are improved. Two corners of the upper box body of the crane boom are designed into arc shapes or right-angle shapes, so that the tensile strength is exerted to the maximum extent when the crane boom is stressed, and the lower box body is designed into a polygonal shape or an arc shape, so that the material is saved, the yield strength of the crane boom during working is higher, and the compression-resistant 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 composed of an upper arm body and a lower arm body which are folded into a groove shape, the upper arm body and the lower arm body of the inner arm 1 and the outer arm 2 are buckled into a hollow cavity, and are welded into a whole at the butt joint edge positions of the.
The positions of welding seams on the same side surfaces of the inner arm 1 and the outer arm 2 are staggered up and down and do not interfere with each other, so that excessive grinding is not needed to be carried out on the welding seams after welding, and the welding seams are ensured to have enough thickness and strength.
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 thickness of the lower arm body steel plate is larger than that of the upper arm body steel plate, so that the lower arm body has larger yield strength. Or the thickness of the lower arm steel plate is consistent with that of the upper arm steel plate, but the yield strength of the lower arm steel plate is higher than that of the upper arm steel plate, and the lower arm steel plate can also ensure higher yield strength and higher pressure resistance.
The middle position of the upper arm body 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 two sides of the plane 5 are respectively folded downwards into a 90-degree arc shape, the lower sides of the two 90-degree arc shapes are parallel and extend downwards to form a left vertical surface 7 and a right vertical surface 7 of the upper arm body, the middle position of the lower side surface of the lower arm body 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 folded upwards into a slope surface 6 which is connected with the plane and has a low side and a high side, the two slope surfaces 6 are parallel and extend upwards far away from the edge of the plane 5 to form a left vertical surface 7 and a right vertical surface 7 of the lower arm body which are vertical to the plane 5, the lower edge parts of the two vertical surfaces 7 of the upper arm bodies of the inner arm 1 and the outer arm 2 are respectively welded with the upper edge parts of the two vertical surfaces 7 of the lower arm bodies of, the inner walls of two slopes 6 at the front end part of the lower arm body of the outer arm 2 are provided with a lower sliding wear-resistant block 4 at a high point far away from the plane 5.
In the second embodiment, as shown in fig. 2, the difference from the first embodiment is that the middle position of the upper arm body of the inner arm 1 and the outer arm 2 is a plane 5 extending along the cavity direction of the inner arm 1, two sides of the plane 5 are respectively folded downwards into a 90-degree arc shape, the lower sides of the two 90-degree arc shapes are parallel and extend downwards to form two vertical surfaces 7 of the upper arm body, the lower side surfaces of the lower arm bodies of the inner arm 1 and the outer arm 2 are 180-degree arc surfaces 8 extending axially along the cavity direction of the inner arm 1, the side portions of two sides of the 180-degree arc surfaces 8 are parallel and extend upwards to form two vertical surfaces 7 of the lower arm body, the lower side portions of two vertical surfaces 7 of the upper arm bodies of the inner arm 1 and the outer arm 2 are respectively welded and connected with the upper side portions of two vertical surfaces 7 of the lower arm bodies of the inner arm 1 and the outer arm 2, the surfaces of the upper sliding wear-resistant blocks 3 matched with two inner corners of the upper side of the outer arm 2 are 90-degree surfaces, and the high positions of two side portions of the 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 lower arm body of the outer arm 2.
In the third embodiment, as shown in fig. 3, the difference from the first embodiment is that the middle position of the upper arm body of the inner arm 1 and the outer arm 2 is a plane 5 extending along the cavity direction of the inner arm 1, both sides of the plane 5 are respectively folded downwards to form a right-angle shape, the lower sides of the two right-angle shapes are extended downwards in parallel to form two vertical surfaces 7 of the upper arm body, the lower side surfaces of the lower arm body of the inner arm 1 and the outer arm 2 are 180-degree arc surfaces 8 extending axially along the cavity direction of the inner arm 1, the side portions of both sides of the 180-degree arc surfaces 8 are extended upwards in parallel to form two vertical surfaces 7 of the lower arm body, the lower side portions of the two vertical surfaces 7 of the upper arm body of the inner arm 1 and the outer arm 2 are respectively welded with the upper side portions of the two vertical surfaces 7 of the lower arm body of the inner arm 1 and the outer arm 2, the surfaces of each upper sliding wear-resistant block 3 matched with two inner angles on the upper side of the outer arm 2 are right-angle surfaces, the high point positions of the 180-degree arc surfaces, or a lower sliding wear-resisting block 4 with an integral structure is arranged on a 180-degree arc surface 8 at the front end part of the lower arm body of the outer arm 2.
In the fourth embodiment, as shown in fig. 4, the difference from the first embodiment is that the middle position of the upper arm body of the inner arm 1 and the outer arm 2 is a plane 5 extending along the cavity direction of the inner arm 1, two sides of the plane 5 are respectively folded downwards into a 90-degree arc shape, the lower sides of the two 90-degree arc shapes are extended downwards in parallel to form a left vertical surface 7 and a right vertical surface 7 of the upper arm body, the middle position of the lower side surface of the lower arm body of the inner arm 1 and the outer arm 2 is folded downwards, two sides are formed into a slope 6 with a lower folding position and a higher opposite side position, the higher side parts of the two slope surfaces 6 are respectively extended upwards in parallel to form a left vertical surface 7 and a right vertical surface 7 of the lower arm body, the lower side parts of the two vertical surfaces 7 of the upper arm body of the inner arm 1 and the upper side of the outer arm 2 are respectively welded with the upper side parts of the two vertical surfaces 7 of the lower arm body of the inner arm 1 and, the inner wall of the front end part of the lower arm body of the outer arm 2 is provided with a lower sliding wear-resistant block 4 at the high point position of two sloping surfaces 6.
In the fifth embodiment, as shown in fig. 5, the difference from the first embodiment is that the middle position of the upper arm body of the inner arm 1 and the outer arm 2 is a plane 5 extending along the cavity direction of the inner arm 1, two sides of the plane 5 are respectively folded downwards to form a right-angle shape, the lower sides of the two right-angle shapes are parallel downwards and extend to form two vertical surfaces 7 of the upper arm body, the middle position of the lower side surface of the lower arm body of the inner arm 1 and the outer arm 2 is folded downwards, two sides of the lower side surface of the lower arm body of the inner arm 1 and the outer arm 2 are formed into a slope 6 with a lower folded position and a higher opposite side position, the higher side portions of the two slope surfaces 6 are respectively parallel upwards and extend to form two vertical surfaces 7 of the lower arm body, the lower side portions of the two vertical surfaces 7 of the upper arm body of the inner arm 1 and the outer arm 2 are respectively welded with the upper side portions of the two vertical surfaces 7 of the lower arm body of the inner arm 1 and the outer arm 2, the surfaces of the upper sliding wear-resistant blocks 3 matched with two inner.
Claims (9)
1. Side light load 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 corner 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 respectively composed of an upper arm body and a lower arm body which are folded into a groove shape, notches of the upper arm body and the lower arm body of the inner arm (1) and the outer arm (2) are oppositely buckled into a hollow cavity, and the hollow cavity is welded into a whole at the position of the butt joint edge of the left side and the right side.
2. The side light load weld crane boom according to claim 1, characterized in that the weld positions on the same side of the inner boom (1) and the outer boom (2) are staggered up and down without interfering with each other.
3. The side light-load welding seam 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 cross 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 small and semicircular.
4. The side light-load weld crane boom of claim 1, wherein the thickness of the lower arm body steel plate is greater than the thickness of the upper arm body steel plate, or the thickness of the lower arm body steel plate is the same as the thickness of the upper arm body steel plate, and the yield strength of the lower arm body steel plate is higher than that of the upper arm body steel plate.
5. The crane boom with the side light-load weld seam as claimed in claim 1, wherein the middle position of the upper arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are respectively folded downwards to form a 90-degree circular arc, the lower sides of the two 90-degree circular arcs are respectively folded downwards in parallel to extend to form a left vertical surface (7) and a right vertical surface (7) of the upper arm body, the middle position of the lower side surface of the lower arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are folded upwards to form a slope surface (6) which is low on one side and high on the other side and is connected with the plane, the edges of the two slope surfaces (6) far away from the plane (5) are upwards extended in parallel to form a left vertical surface (7) and a right vertical surface of the lower arm body of the plane (5), and the lower edges (7) of the upper arm ) The upper edges of two vertical surfaces (7) of the lower arm body are welded and connected, the surfaces of the upper sliding wear-resistant blocks (3) and two inner angles on the upper side of the outer arm (2) which are matched are 90-degree arc surfaces, and the high points of two slope surfaces (6) on the front end part of the lower arm body of the outer arm (2), which are far away from the plane (5), are respectively provided with a lower sliding wear-resistant block (4).
6. The crane boom with the side light-load weld seam as claimed in claim 1, wherein the middle position of the upper arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are respectively folded downwards into a 90-degree arc shape, the lower sides of the two 90-degree arc shapes are parallel and extend downwards to form a left vertical surface (7) and a right vertical surface (7) of the upper arm body, the lower side surfaces of the lower arm bodies of the inner arm (1) and the outer arm (2) are 180-degree arc surfaces (8) extending axially along the cavity direction of the inner arm (1), the side portions of the two sides of the 180-degree arc surfaces (8) are parallel and extend upwards to form a left vertical surface and a right vertical surface (7) of the lower arm body, the lower side portions of the two vertical surfaces (7) of the upper arm bodies of the inner arm (1) and the outer arm (2) are respectively welded with the vertical surfaces (7) of the lower arm, the upper sliding wear-resistant blocks (3) and two inner angle matched surfaces on the upper side of the outer arm (2) are 90-degree arc surfaces, the high points of two sides of a 180-degree arc surface (8) at the front end part of the lower arm body 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 part of the lower arm body of the outer arm (2) is provided with a lower sliding wear-resistant block (4) with an integral structure.
7. The side light load welding seam crane boom as claimed in claim 1, characterized in that the middle position of the upper arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are respectively folded downwards to form a right angle shape, the lower sides of the two right angle shapes are parallel and extend downwards to form two left and right vertical faces (7) of the upper arm body, the lower side surface of the lower arm body of the inner arm (1) and the outer arm (2) is a 180-degree arc surface (8) extending axially along the cavity direction of the inner arm (1), the side parts of the two sides of the 180-degree arc surface (8) are parallel and extend upwards to form two left and right vertical faces (7) of the lower arm body, the lower side parts of the two upper arm vertical faces (7) of the inner arm (1) and the outer arm (2) are respectively welded with the two upper side vertical faces (7) of the lower arm body of the inner arm (1) and the outer, the upper sliding wear-resistant blocks (3) and two inner angle matched surfaces 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 lower arm body 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 part of the lower arm body of the outer arm (2) is provided with a lower sliding wear-resistant block (4) with an integral structure.
8. The crane boom with the side light-load weld seam as claimed in claim 1, wherein the middle position of the upper arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are respectively folded downwards into a 90-degree circular arc shape, the lower sides of the two 90-degree circular arc shapes are respectively folded downwards in parallel and extend downwards to form a left vertical surface (7) and a right vertical surface (7) of the upper arm body, the middle position of the lower side surface of the lower arm body of the inner arm (1) and the outer arm (2) is folded downwards, two sides are respectively formed into a slope surface (6) with a low folding position and a high opposite side position, the high side parts of the two slope surfaces (6) are respectively extended upwards in parallel and form a left vertical surface (7) and a right vertical surface (7) of the lower arm body, the lower side parts of the two vertical surfaces (7) of the upper arm body of the inner arm (1) and the outer arm (, 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, and the high points of two sloping surfaces (6) on the inner wall of the front end part of the lower arm body of the outer arm (2) are respectively provided with a lower sliding wear-resistant block (4).
9. The side light load welding seam crane boom as claimed in claim 1, characterized in that the middle position of the upper arm body of the inner arm (1) and the outer arm (2) is a plane (5) extending along the cavity direction of the inner arm (1), two sides of the plane (5) are respectively folded downwards to form a right angle shape, the lower sides of the two right angle shapes are parallel and extend downwards to form a left vertical surface (7) and a right vertical surface (7) of the upper arm body, the middle position of the lower side surface of the lower arm body of the inner arm (1) and the outer arm (2) is folded downwards, two sides form a slope surface (6) with a lower folding position and a higher opposite side position, the higher side parts of the two slope surfaces (6) are respectively parallel and extend upwards to form a left vertical surface (7) and a right vertical surface (7) of the lower arm body, the lower side parts of the two vertical surfaces (7) of the upper arm body of the inner arm (1) and the outer arm (2) are respectively welded with the upper side parts of, 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, and the high points of two sloping surfaces (6) on the inner wall of the front end part of the lower arm body of the outer arm (2) are respectively provided with a lower sliding wear-resistant block (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000689.9U CN211078264U (en) | 2019-11-19 | 2019-11-19 | Side light-load welding seam crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922000689.9U CN211078264U (en) | 2019-11-19 | 2019-11-19 | Side light-load welding seam crane boom |
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| Publication Number | Publication Date |
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| CN211078264U true CN211078264U (en) | 2020-07-24 |
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| CN201922000689.9U Active CN211078264U (en) | 2019-11-19 | 2019-11-19 | Side light-load welding seam crane boom |
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| CN (1) | CN211078264U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733992A (en) * | 2019-11-19 | 2020-01-31 | 姚运文 | Side light-load welding seam crane boom |
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- 2019-11-19 CN CN201922000689.9U patent/CN211078264U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110733992A (en) * | 2019-11-19 | 2020-01-31 | 姚运文 | Side light-load welding seam crane boom |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220922 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 |