CN220467342U - Gantry crane landing leg - Google Patents
Gantry crane landing leg Download PDFInfo
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- CN220467342U CN220467342U CN202321750755.4U CN202321750755U CN220467342U CN 220467342 U CN220467342 U CN 220467342U CN 202321750755 U CN202321750755 U CN 202321750755U CN 220467342 U CN220467342 U CN 220467342U
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- sleeve
- gantry crane
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of crane equipment, and provides a gantry crane supporting leg which comprises a supporting frame, wherein the bottom of the supporting frame is in sliding connection with symmetrically arranged sliding blocks, the sliding blocks are in sliding connection with sliding rails, the front side and the rear side of the bottom of the sliding blocks are fixedly connected with fixed blocks, the fixed blocks are fixedly connected with the two sides of the lower end of the sliding rails, the two fixed blocks are fixedly connected with a clamping structure, one end of a hexagonal rod is not adsorbed after an electromagnetic chuck stops working, the hexagonal rod is pulled back into a first hexagonal hole through a second elastic piece at the other end of the hexagonal rod so as to be separated from the second hexagonal hole, meanwhile, one end of a clamping joint at the lower end of the hexagonal rod is driven to be contacted with the lower end of the sliding rails, and a third elastic piece at the other end of the clamping joint pushes the clamping joint to be inclined into the clamping hole at the lower end of the sliding rails when the gantry crane moves, so that the problem that the gantry crane is possibly moved and is covered due to influence of unexpected conditions is prevented.
Description
Technical Field
The utility model relates to the technical field of crane equipment, in particular to a gantry crane landing leg.
Background
Gantry cranes (also known as gantry cranes) are bridge cranes, the bridge of which is supported on ground rails by legs on both sides, structurally consisting of a portal frame, a cart running mechanism, a lifting trolley and an electric part, and are mainly used for loading and unloading goods and bulk goods in outdoor goods yards and storage yards. The portal crane is widely applied to port cargo yards due to high utilization rate, wide operation range, wide adaptability and strong universality.
Chinese patent No. CN217297041U discloses a gantry crane, which can meet the lifting work of different lateral positions and different heights, has a wider application range, and can also perform lifting work on a site with a certain gradient, and has a smaller limitation in use, but under the unattended condition, the gantry crane of the existing port is prevented from moving by a brake pad, and is stopped by the brake pad, and the effect of the brake pad may be reduced in the long term, and when unexpected bad weather such as reduction or failure of the braking effect of the brake pad of a tsunami in a windy sea is met, the gantry crane is affected, and thus the problem of the phenomenon of capsizing may occur due to movement, so that a gantry crane leg capable of solving the problem that the gantry crane is capsized due to the influence of the bad antenna is needed to solve the problem.
Disclosure of Invention
The utility model provides a portal crane landing leg, which solves the problem that the conventional portal crane encounters unexpected severe weather such as strong wind and tsunami under the unattended condition, and the portal crane is possibly moved under the influence of the influence so as to topple.
The technical scheme of the utility model is as follows: the utility model provides a gantry crane landing leg, includes the support frame, support frame bottom and the slider sliding connection that the symmetry set up, slider and slide rail sliding connection, both sides are connected fixedly around the slider bottom with the fixed block, fixed block and slide rail lower extreme both sides sliding connection, two the fixed block is opposite to each other fixed with early warning structure connection, two with joint structure connection is fixed between the fixed block, joint structure one side is connected with motor drive.
Preferably, the clamping structure comprises a roller, the roller is in sliding contact with the sliding rail, a first hexagonal hole is formed in one side of the roller, the bottom of the first hexagonal hole is fixedly connected with one end of a second elastic piece, the other end of the second elastic piece is fixedly connected with one end of a hexagonal rod, the first hexagonal hole is in sliding connection with one end of the hexagonal rod, the other end of the hexagonal rod is in sliding connection with a second hexagonal hole formed in a hexagonal sleeve, an electromagnetic chuck is arranged at the bottom of the second hexagonal hole, one side of the hexagonal sleeve penetrates through a protective cover to be fixedly connected with the output end of a motor, two sides of the protective cover are fixedly connected with the sliding block, the middle position of the hexagonal rod is fixedly connected with the inner ring of the bearing, and the lower end of the outer ring of the bearing is fixedly connected with the rail locking structure.
Preferably, the caliber of the two ends of the hexagonal rod is smaller than that of the first hexagonal hole and the second hexagonal hole.
Preferably, the rail locking structure comprises a first connecting rod which is vertically arranged, the top of the first connecting rod is fixedly connected with the lower end of the bearing outer ring, the other end of the first connecting rod is fixedly connected with a second connecting rod which is transversely arranged, the second connecting rod is fixedly connected with a clamping joint outer ring which is transversely arranged, one end of the clamping joint is fixedly clamped with a clamping hole which is formed in the equidistant way of the sliding rail, the other end of the clamping joint is fixedly connected with one end of a third elastic piece, and the other end of the third elastic piece is fixedly connected with the inner wall of the protective cover.
Preferably, the third elastic piece comprises a first sleeve and a second sleeve, the inner ring of the first sleeve is in sliding connection with the outer ring of the second sleeve, the outer ring of the first sleeve is provided with a spring, two ends of the spring are fixedly connected with a baffle, one side of the opposite face of the two baffle is fixedly connected with one end of the first sleeve and one end of the second sleeve respectively, and the opposite faces of the two baffle are fixedly connected with one end of the clamping connector and the inner wall of the protective cover respectively.
Preferably, the early warning structure comprises a sliding plate, the sliding plate is in sliding connection with the sliding rail, one side of the sliding plate is fixedly connected with one end of a first elastic piece which is symmetrically arranged, the other end of the first elastic piece is fixedly connected with the fixed block, the upper end of one side of the sliding plate is in contact with the travel switch, and the travel switch is electrically connected with the motor.
The working principle and the beneficial effects of the utility model are as follows: when the motor and the electromagnetic chuck stop working at the preset position, the electromagnetic chuck does not adsorb one end of the hexagonal rod any more, the hexagonal rod is pulled back into the first hexagonal hole through the second elastic piece at the other end of the hexagonal rod so as to be separated from the second hexagonal hole, meanwhile, the first connecting rod at the lower end can be driven by the movement of the hexagonal rod, the first connecting rod drives the clamping joints at the two ends of the second connecting rod to move, so that the lower end of the sliding rail is contacted with one end of the clamping joint, the other end of the clamping joint is contacted with the third elastic piece, the clamping joint transversely moves more stably, when the supporting frame moves to drive the fixed block to move with the rotating roller, the clamping joint is pushed by the third elastic piece to move into the clamping joint hole formed at the lower end of the sliding rail at equal distance, so that the clamping joint and the sliding rail are locked, and the problem that the gantry crane is possibly to be moved to topple due to the influence of unexpected situations is prevented.
Drawings
The utility model will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a clip structure according to the present utility model;
FIG. 3 is a schematic perspective view of a track locking structure in the structure of the present utility model;
FIG. 4 is an enlarged view of FIG. 1 at A;
in the figure: 1-supporting frame, 2-sliding block, 3-fixed block, 4-sliding rail, 41-clamping hole, 5-early warning structure, 51-sliding plate, 52-first elastic piece, 53-travel switch, 6-supporting plate, 7-motor, 8-clamping structure, 81-roller, 82-hexagonal rod, 83-bearing, 84-hexagonal sleeve, 85-electromagnetic chuck, 86-second elastic piece, 87-rail locking structure, 871-first connecting rod, 872-second connecting rod, 873-clamping joint and 874-third elastic piece
Detailed Description
Referring to fig. 1, a gantry crane supporting leg comprises a supporting frame 1 which is obliquely triangular, the bottom of the supporting frame 1 is in sliding connection with a slide block 2 which is symmetrically arranged and is rectangular in shape, the slide block 2 is in sliding connection with a slide rail 4, the front side and the rear side of the bottom of the slide block 2 are fixedly connected with rectangular fixing blocks 3 through bolts, the slide rail 4 is clamped by the fixing blocks 3 and the slide block 3, the gantry crane supporting leg can be more stable in the moving process, the fixing blocks 3 are in sliding connection with two sides of the lower end of the slide rail 4, the back sides of the two fixing blocks 3 are fixedly connected with an early warning structure 5, when an obstacle appears on the slide rail 4, the early warning structure 5 is contacted with the obstacle, so that the early warning structure 5 controls the gantry crane to stop working, thereby accidents are prevented, the two fixing blocks 3 are fixedly connected with a clamping structure 8, one side of the clamping structure 8 is in transmission connection with a motor 7, one side of the two fixing blocks 3 is fixedly connected with a supporting plate 6 which is transversely arranged in the shape of a rectangular supporting plate 6, and the surface of the supporting plate 6 is fixedly connected with the motor 7 through bolts.
Referring to fig. 2, the clamping structure 8 includes a roller 81 with a circular cross section, the roller 81 is in sliding contact with the sliding rail 4, a first hexagonal hole is formed on one side of the roller 81, the bottom of the first hexagonal hole is welded with one end of a second elastic member 86, the other end of the second elastic member 86 is welded with a hexagonal rod 82, the first hexagonal hole is slidably connected with one end of the hexagonal rod 82, the other end of the hexagonal rod 82 is slidably connected with a second hexagonal hole formed on a hexagonal sleeve 84, the caliber of two ends of the hexagonal rod 82 is smaller than that of the first hexagonal hole and the second hexagonal hole, so that the hexagonal rod 82 is conveniently clamped with the first hexagonal hole and the second hexagonal hole, an electromagnetic chuck 85 is arranged at the bottom of the second hexagonal hole, one side of the hexagonal sleeve 84 passes through a protection cover and is fixedly connected with the output end of the motor 7, the electromagnetic chuck is firstly started to adsorb the hexagonal rod 82 into the second hexagonal hole when the motor 7 is started, the output end of the motor 7 rotates to drive the roller 81, two sides of the hexagonal rod 82 are fixedly connected with the sliding block 2 through bolts, the middle position of the hexagonal rod 82 is fixedly connected with the protection cover 82, the bearing 83 is fixedly connected with the bearing rail 87, and the bearing 87 can be fixedly connected with the bearing rail 87 through the bearing 87.
Referring to fig. 3, the rail locking structure 87 includes a first connecting rod 871 vertically arranged and shaped as a rectangle, the top of the first connecting rod 871 is welded with the lower end of the outer ring of the bearing 83, the other end of the first connecting rod 871 is connected and fixed with a second connecting rod 872 transversely arranged and shaped as a rectangle, the second connecting rod 872 is connected and fixed with an outer ring of a transversely arranged clamping head 873, one end of the clamping head 873 is clamped with a clamping hole 41 formed at equal intervals on the sliding rail 4, one end of the clamping head clamped with the clamping hole 41 is conical so as to be convenient for clamping, the other end of the clamping head 873 is connected and fixed with one end of a third elastic piece 874, the other end of the third elastic piece 874 is connected and fixed with the inner wall of the protective cover, the third elastic piece 874 includes a first sleeve and a second sleeve, the inner ring of the first sleeve is slidingly connected with the outer ring of the second sleeve, the first sleeve is provided with a spring, two ends of the spring are connected and fixed with the opposite sides of the baffle are respectively connected and fixed with one end of the first sleeve and one end of the second sleeve, and the two opposite sides of the baffle are respectively connected and fixed with one end of the back of the baffle and the inner wall of the protective cover 873. The third elastic member can prevent the clamping head 873 from moving after being clamped with the clamping hole 41.
Referring to fig. 4, the early warning structure 5 includes a sliding plate 51 longitudinally disposed, the sliding plate 51 is slidably connected with the sliding rail 4, one side of the sliding plate 51 is fixedly connected with one end of a first elastic member 52 symmetrically disposed, the first elastic member 52 may be a spring with larger pressure, the other end of the first elastic member 52 is fixedly connected with the fixed block 3, the upper end of one side of the sliding plate 51 contacts with a travel switch 53, the travel switch 53 is electrically connected with a motor 7, the first elastic member 52 is pressed when the sliding plate 51 is blocked from foreign matter release, and under the condition of continuous pressing, the sliding plate 51 contacts with the travel switch 53, so that the travel switch 53 cuts off the motor 7 and an electromagnetic chuck 85 which are electrically connected, thereby preventing accidents.
The operating principle is that the electromagnetic chuck 85 is controlled manually to adsorb the hexagonal rod 82 into the second hexagonal hole formed in the hexagonal sleeve 84, then the motor 7 drives the hexagonal sleeve 84 to rotate, meanwhile, the other end of the hexagonal rod 82 is in sliding connection with the first hexagonal hole formed in the roller 81, meanwhile, the roller 81 is driven to rotate on the sliding rail 4, so that the sliding rail 4 moves, after the motor 7 and the electromagnetic chuck 85 reach the preset position and stop working, the electromagnetic chuck 85 does not adsorb one end of the hexagonal rod 82 any more, the hexagonal rod 82 is pulled back into the first hexagonal hole through the second elastic piece 86 at the other end of the hexagonal rod 82 to be separated from the second hexagonal hole, meanwhile, the first connecting rod 871 drives the clamping connector 873 at the two ends of the second connecting rod 872 to move, the lower end of the sliding rail 4 is contacted with one end of the clamping connector 873, the other end of the clamping connector 873 is contacted with the third elastic piece 874, so that the clamping connector 873 moves transversely, when the supporting frame 1 moves to drive the fixed block 873 to move with the rotating roller, the clamping connector 873 is pushed by the third elastic piece 874 in the moving process, the sliding rail 4 is continuously influenced by the sliding rail 4, and the sliding rail is prevented from being accidentally inclined, and the accident situation is prevented from being continuously influenced by the sliding rail 4.
Because the sliding rail 4 is provided with the clamping hole 41, foreign matters possibly appear to block the roller from sliding, one end of the first elastic piece 52 which is symmetrically arranged on the back of the fixed blocks 3 on the two sides is fixedly connected, the other end of the first elastic piece 52 is contacted with the sliding plate 51, the first elastic piece 52 is pressed when the sliding plate 51 is blocked after the foreign matters are released, and under the condition of continuous pressing, the sliding plate 51 is contacted with the travel switch 53, so that the travel switch 53 cuts off the power of the motor 7 and the electromagnetic chuck 85 which are electrically connected, and accidents are prevented.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (7)
1. The utility model provides a gantry crane landing leg, includes support frame (1), its characterized in that, slider (2) sliding connection that support frame (1) bottom and symmetry set up, slider (2) and slide rail (4) sliding connection, both sides and fixed block (3) are connected fixedly around slider (2) bottom, fixed block (3) and slide rail (4) lower extreme both sides sliding connection, two fixed block (3) looks back is fixed with early warning structure (5) connection, two be connected fixedly with joint structure (8) between fixed block (3), joint structure (8) one side is connected with motor (7) transmission.
2. The gantry crane supporting leg according to claim 1, wherein the clamping structure (8) comprises a roller (81), the roller (81) is in sliding contact with the sliding rail (4), a first hexagonal hole is formed in one side of the roller (81), the bottom of the first hexagonal hole is fixedly connected with one end of a second elastic piece (86), the other end of the second elastic piece (86) is fixedly connected with one end of a hexagonal rod (82), the first hexagonal hole is in sliding connection with one end of the hexagonal rod (82), the other end of the hexagonal rod (82) is in sliding connection with a second hexagonal hole formed in the hexagonal sleeve (84), an electromagnetic chuck (85) is arranged at the bottom of the second hexagonal hole, one side of the hexagonal sleeve (84) penetrates through a protection cover to be fixedly connected with the output end of the motor (7), two sides of the protection cover are fixedly connected with the sliding block (2), the middle position of the hexagonal rod (82) is fixedly connected with the inner ring of the bearing (83), and the lower end of the bearing (83) is fixedly connected with the locking rail structure (87).
3. A gantry crane leg according to claim 2, characterized in that the ends of the hexagonal rod (82) are smaller in caliber than the first and second hexagonal holes.
4. The gantry crane supporting leg according to claim 2, wherein the rail locking structure (87) comprises a first connecting rod (871) which is vertically arranged, the top of the first connecting rod (871) is fixedly connected with the lower end of an outer ring of the bearing (83), the other end of the first connecting rod (871) is fixedly connected with a second connecting rod (872) which is transversely arranged, the second connecting rod (872) is fixedly connected with an outer ring of a transversely arranged clamping joint (873), one end of the clamping joint (873) is clamped with a clamping hole (41) which is formed in an equidistant manner on the sliding rail (4), the other end of the clamping joint (873) is fixedly connected with one end of a third elastic piece (874), and the other end of the third elastic piece (874) is fixedly connected with the inner wall of the protective cover.
5. The gantry crane supporting leg according to claim 4, wherein the third elastic member (874) comprises a first sleeve and a second sleeve, the inner ring of the first sleeve is slidably connected with the outer ring of the second sleeve, the outer ring of the first sleeve is provided with a spring, two ends of the spring are fixedly connected with a baffle, one side of the opposite surfaces of the two baffles is fixedly connected with one end of the first sleeve and one end of the second sleeve respectively, and the opposite surfaces of the two baffles are fixedly connected with one end of the clamping connector (873) and the inner wall of the protective cover respectively.
6. The gantry crane supporting leg according to claim 1, wherein the early warning structure (5) comprises a sliding plate (51), the sliding plate (51) is in sliding connection with the sliding rail (4), one side of the sliding plate (51) is fixedly connected with one end of a first elastic piece (52) which is symmetrically arranged, the other end of the first elastic piece (52) is fixedly connected with the fixed block (3), the upper end of one side of the sliding plate (51) is in contact with a travel switch (53), and the travel switch (53) is electrically connected with the motor (7).
7. Gantry crane supporting leg according to claim 5, characterized in that two fixed blocks (3) are fixedly connected with a supporting plate (6) which is arranged transversely on one side and is connected with a supporting plate (6), and the surface of the supporting plate (6) is fixedly connected with a motor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750755.4U CN220467342U (en) | 2023-07-05 | 2023-07-05 | Gantry crane landing leg |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321750755.4U CN220467342U (en) | 2023-07-05 | 2023-07-05 | Gantry crane landing leg |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220467342U true CN220467342U (en) | 2024-02-09 |
Family
ID=89796472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321750755.4U Active CN220467342U (en) | 2023-07-05 | 2023-07-05 | Gantry crane landing leg |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220467342U (en) |
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2023
- 2023-07-05 CN CN202321750755.4U patent/CN220467342U/en active Active
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