Low-temperature outdoor portal crane
By designing a low-temperature outdoor gantry crane equipped with electrical heating belts, windproof iron wedges, anchoring components and wind wind ropes, the safety hazards of bridge cranes when operating in low-temperature outdoor environments are solved, and the normal operation and high safety of the equipment in low-temperature environments are achieved.
Patent Information
- Application Number
- CN202421954049.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-13
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-08-13
AI Technical Summary
Bridge cranes have major safety hazards when operating in low-temperature outdoor environments, making it difficult to ensure the normal operation and safety of the equipment in low-temperature environments.
A low-temperature outdoor gantry crane is designed, with a gantry frame and two parallel main tracks, equipped with electrical heating belts, windproof iron wedges, anchoring components and wind ropes to ensure the normal operation and safety of the equipment under low temperature environments.
Preheating and insulation measures ensure that the equipment is driven normally in a low-temperature environment. The windproof iron wedge, anchoring components and wind rope improve the windproof and anti-slip performance of the equipment, reduce the damage to the equipment by heavy rain and blizzard, and ensure safe operation in a low-temperature outdoor environment.
Smart Images
Figure CN223002614U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cranes, in particular to a low-temperature outdoor gantry crane. Background Art
[0002] A bridge crane is a lifting device that spans over workshops, warehouses, and yards for material handling. Its two ends are located on tall cement columns or metal brackets, and it is shaped like a bridge. When a bridge crane is installed in a low-temperature outdoor environment, there are significant safety hazards due to environmental factors. Therefore, a low-temperature outdoor gantry crane is designed to ensure its safe operation in a low-temperature outdoor environment. Summary of the Utility Model
[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a low-temperature outdoor gantry crane that can operate normally in a low-temperature outdoor environment and ensure the safety of operation.
[0004] A low-temperature outdoor gantry crane provided by the utility model includes a gantry and two parallel main tracks; the bottom end of the gantry is provided with gantry traveling wheels distributed in a rectangular shape corresponding to the two main tracks; a trolley is arranged at the top of the gantry, trolley traveling wheels are arranged at the bottom of the trolley, and an electric hoist is arranged on the trolley.
[0005] Electric heating tapes are arranged on the first driving motor of the gantry traveling wheels, the second driving motor of the trolley traveling wheels, and the lifting motor of the electric hoist; a windproof iron wedge is arranged at the front or rear side of the gantry traveling wheels at the bottom of the gantry; an anchoring component is arranged at the bottom of the gantry; guy ropes are connected to the bottoms of both sides of the gantry, and a number of ground anchors are arranged along the length direction of the two main tracks on both sides of the two main tracks; a protective cover is fixedly arranged at the top of the trolley.
[0006] Further, the gantry includes two parallel main beams, end beams are respectively arranged at both ends between the two main beams, one end of the bottom of the main beam is fixedly connected with a rigid leg, and the other end is provided with a flexible leg, and the flexible leg is flexibly connected with the main beam through a hinge structure.
[0007] Further, the hinge structure includes a lower fixing plate fixedly connected to the top end of the flexible leg and an upper fixing plate fixedly connected to the bottom of the main beam. Lower connecting plates are symmetrically and fixedly arranged at both ends of the top surface of the lower fixing plate. Upper connecting plates are correspondingly arranged outside each lower connecting plate at the bottom surface of the upper fixing plate. The two upper connecting plates are rotationally connected to the two lower connecting plates through a shaft rod. A limiting plate is fixedly arranged at the top surface of the lower fixing plate below the upper connecting plate. A gap is left between the top surface of the limiting plate and the bottom surface of the upper connecting plate, so that the upper connecting plate can only rotate by 0.5° - 0.8°.
[0008] Further, the anchoring assembly includes an anchoring base fixedly arranged at the bottom of the gantry. One side of the bottom of the anchoring base is fixedly connected with an anchoring bracket. A vertical channel is arranged on the anchoring bracket. An anchoring shaft passes through the vertical channel. The top end of the anchoring shaft is fixedly connected with a handle. Limiting blocks are symmetrically and fixedly arranged on both sides of the anchoring shaft. Through grooves are formed in the vertical channel corresponding to the limiting blocks. A plurality of anchoring pits are arranged on one side of the main track along its length direction corresponding to the anchoring shaft.
[0009] Further, wooden rail sweepers are respectively arranged at one ends of the gantry traveling wheels and the trolley traveling wheels.
[0010] Further, a maintenance walkway is fixedly arranged on one side of the top of the gantry. A grating plate is laid on the top surface of the maintenance walkway. A walkway guardrail is fixedly arranged on the outer side of the top surface of the maintenance walkway; A ladder connecting to the maintenance walkway is fixedly arranged on one side of the gantry. A ladder guardrail is fixedly arranged on the ladder.
[0011] Further, the gantry and the trolley are made of Q355C or Q355D material with low brittleness.
[0012] Further, a polyurethane coating protective layer is sprayed on the surfaces of the gantry and the trolley.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] Each motor serving as a power source of the gantry crane of the present utility model is equipped with an electric heating belt for preheating before working in a low-temperature environment and heat preservation after the work is completed. In a stormy weather, the gantry traveling wheels are wedged by the windproof wedges, and the bottom of the gantry is fixed by the anchoring assembly; The two sides of the gantry are pulled by the guy ropes. The cooperation of the windproof wedges, the anchoring assembly and the guy ropes greatly improves the windproof and anti-slip performance of the gantry crane and improves the safety of outdoor operations; The protective cover forms a protection for the electric hoist on the trolley, reducing the damage to the equipment caused by heavy rain, heavy snow, etc.; The gantry crane of the present application can operate normally in a low-temperature outdoor environment, ensuring the safety of operation.
[0015] It should be understood that the content described in the utility model content part is not intended to limit the key or important features of the embodiments of the present utility model, nor to limit the scope of the present utility model. Other features of the present utility model will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Other features, objects and advantages of the present utility model will become more obvious by reading the detailed description of the non-limiting embodiments with reference to the following drawings:
[0017] Figure 1 It is a front view structural schematic diagram of a low-temperature outdoor gantry crane;
[0018] Figure 2 It is a side view structural schematic diagram of a low-temperature outdoor gantry crane;
[0019] Figure 3 It is a front view structural schematic diagram of a windproof iron wedge;
[0020] Figure 4 It is a side view structural schematic diagram of a windproof iron wedge;
[0021] Figure 5 It is a three-dimensional structural schematic diagram of an anchoring assembly;
[0022] Figure 6 It is a front view structural schematic diagram of an anchoring assembly;
[0023] Figure 7 It is a three-dimensional structural schematic diagram of a hinge seat structure;
[0024] Figure 8 It is a sectional structural schematic diagram of a hinge seat structure.
[0025] Reference numerals in the figure: 1. Gantry; 2. Gantry traveling wheel; 3. Trolley; 4. Electric hoist; 5. Windproof iron wedge; 6. Anchoring assembly; 7. Guy wire; 8. Protective cover; 9. Hinge seat structure; 10. Main track;
[0026] 11. Main beam; 12. End beam; 13. Rigid leg; 14. Flexible leg; 15. Maintenance walkway; 16. Platform guardrail; 17. Ladder; 18. Ladder guardrail;
[0027] 21. Wooden sweeper;
[0028] 61. Anchoring seat; 62. Anchoring bracket; 63. Vertical passage; 64. Anchoring shaft; 65. Handle; 66. Through slot;
[0029] 91. Lower fixing plate; 92. Upper fixing plate; 93. Lower connecting plate; 94. Upper connecting plate; 95. Shaft rod; 96. Limiting plate. Detailed implementation manners
[0030] The following further elaborates on the present utility model in conjunction with the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are merely for explaining the relevant utility model and not for limiting the utility model. Additionally, it should be noted that for the sake of description, only the parts related to the utility model are shown in the drawings.
[0031] It should be noted that, without conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in combination with the embodiments.
[0032] Please refer to Figures 1 to 8 , an embodiment of the present utility model provides a low-temperature outdoor gantry crane, which includes a gantry 1 and two parallel main tracks 10; the bottom end of the gantry 1 is provided with gantry traveling wheels 2 distributed in a rectangular shape corresponding to the two main tracks 10; a trolley 3 is arranged on the top of the gantry 1, trolley traveling wheels are arranged at the bottom of the trolley 3, and an electric hoist 4 is arranged on the trolley 3;
[0033] Electric heating tapes are arranged on the first driving motor of the gantry traveling wheel 2, the second driving motor of the trolley traveling wheel, and the lifting motor of the electric hoist 4; a windproof iron wedge 5 is arranged at the front or rear side of the gantry traveling wheel 2 at the bottom of the gantry 1; an anchoring assembly 6 is arranged at the bottom of the gantry 1; guy ropes 7 are connected to the bottoms on both sides of the gantry 1, and a number of ground anchors are arranged on both sides of the two main tracks 10 along the length direction of the main tracks 10; a protective cover 8 is fixedly arranged on the top of the trolley 3.
[0034] In this embodiment, when the gantry crane operates in a low-temperature outdoor environment, before work, the first driving motor of the gantry traveling wheel 2, the second driving motor of the trolley traveling wheel, and the lifting motor of the electric hoist 4 are preheated through the electric heating tape, and heat preservation is carried out after work is completed, ensuring normal driving in a low-temperature environment.
[0035] In a stormy weather, the gantry traveling wheel 2 is wedged by the windproof iron wedge 5, and the bottom of the gantry 1 is fixed through the anchoring assembly 6; the guy ropes 7 are fixedly connected to the ground anchors, thereby pulling both sides of the gantry 1. The cooperation of the windproof iron wedge 5, the anchoring assembly 6 and the guy ropes 7 greatly improves the windproof and anti-slip performance of the gantry crane and improves the safety of outdoor operations.
[0036] The protective cover 8 forms a protection for the electric hoist 6 on the trolley 3, reducing damage to the equipment caused by heavy rain, heavy snow, etc.
[0037] The gantry crane of the present application has good protection effect against outdoor low temperature and strong wind and other environments, can operate normally in a low-temperature outdoor environment, and has high safety.
[0038] In a preferred embodiment, as Figure 1 and Figure 2 shown, the gantry 1 includes two parallel main beams 11, end beams 12 are respectively arranged at both ends between the two main beams 11, one end of the bottom of the main beam 11 is fixedly connected with a rigid leg 13, and the other end is provided with a flexible leg 14, and the flexible leg 14 is flexibly connected with the main beam 11 through a hinge seat structure.
[0039] In this embodiment, the gantry 1 adopts a statically determinate structure composed of rigid legs 13 + flexible legs 14, which can effectively eliminate the internal stress caused by the structural deformation of the gantry crane due to large outdoor temperature differences, ensuring the structural safety of the gantry crane.
[0040] In a preferred embodiment, as Figure 2 、 7 、8 show, the hinge seat structure 9 includes a lower fixing plate 91 fixedly connected to the top of the flexible leg 14 and an upper fixing plate 92 fixedly connected to the bottom of the main beam 1. At both ends of the top surface of the lower fixing plate 91, lower connecting plates 93 are symmetrically and fixedly arranged. On the outer side of each lower connecting plate 91 at the bottom surface of the upper fixing plate 92, upper connecting plates 94 are arranged in one-to-one correspondence. The two upper connecting plates 94 are rotatably connected to the two lower connecting plates 93 through a shaft rod 95. On the top surface of the lower fixing plate 91, a limiting plate 96 is fixedly arranged below the upper connecting plate 94. There is a gap between the top surface of the limiting plate 96 and the bottom surface of the upper connecting plate 94, so that the upper connecting plate 94 can only rotate 0.5° - 0.8°.
[0041] In this embodiment, the flexible leg 14 is fixedly connected to the lower fixing plate 91, and the bottom of the main beam 1 is fixedly connected to the upper fixing plate 92. With the cooperation of the lower connecting plate 93, upper connecting plate 94, shaft rod 95 and limiting plate 96, the flexible leg 14 can rotate 0.5° - 0.8° relative to the main beam 11. The flexible leg 14 realizes flexible connection with the main beam 11 through the hinge seat structure 9, which can effectively eliminate internal stress and improve structural safety.
[0042] In a preferred embodiment, as Figure 2 、 5 、6 show, the anchoring assembly 6 includes an anchoring seat 61 fixedly arranged at the bottom of the gantry 1. On one side of the bottom of the anchoring seat 61, an anchoring bracket 62 is fixedly connected. A vertical channel 63 is arranged on the anchoring bracket 62. An anchoring shaft 64 passes through the vertical channel 63. The top end of the anchoring shaft 64 is fixedly connected with a handle 65. Limiting blocks are symmetrically and fixedly arranged on both sides of the anchoring shaft 65. A through slot 66 is arranged in the vertical channel 63 corresponding to the limiting blocks. Along the length direction of the main track 10, a number of anchoring pits are arranged corresponding to the anchoring shaft 64 on one side.
[0043] In this embodiment, when encountering a storm, the worker controls the gantry crane to move so that the vertical channel 63 is aligned with the anchoring pit. Then, the anchoring shaft 64 is lifted through the handle 65, and the anchoring shaft 64 is rotated so that the limiting blocks are aligned with the through slots 66. The anchoring shaft 64 is lowered along the vertical channel 63, and the bottom end of the anchoring shaft 64 is inserted into the anchoring pit to complete the anchoring, ensuring the stability of the gantry crane.
[0044] The anchoring bracket 62 is provided with a limiting groove corresponding to the limiting block. Under normal circumstances, the limiting block is embedded in the limiting groove, making the anchoring shaft 64 unable to rotate. During anchoring, the anchoring shaft 64 is lifted to disengage the limiting block from the limiting groove so that the anchoring shaft 64 can rotate, thereby completing the anchoring. This improves the safety of the anchoring structure.
[0045] In a preferred embodiment, as Figure 2 shown, one end of the gantry traveling wheel 2 and one end of the trolley traveling wheel are respectively provided with a wooden rail sweeper 21, which can sweep away ice, snow or dust on the track, improving the safety of the operation of the bridge crane.
[0046] In a preferred embodiment, as Figure 1 and Figure 2 shown, one side of the top of the gantry 1 is fixedly provided with a maintenance walkway 15. The top surface of the maintenance walkway 15 is paved with grating plates, which has good anti-slip effect and is not easy to accumulate dust; a walkway guardrail 16 is fixedly provided on the outer side of the top surface of the maintenance walkway 15 to ensure the safety of maintenance personnel; a ladder 17 connected to the maintenance walkway 15 is fixedly provided on one side of the gantry 1, and a ladder guardrail 18 is fixedly provided on the ladder 17 to ensure that maintenance personnel can climb safely to the maintenance walkway 15.
[0047] In a preferred embodiment, the gantry 1 and the trolley 3 are made of Q355C or Q355D materials with low brittleness, which have good anti-low temperature effect and improve the service life in low temperature environments.
[0048] In a preferred embodiment, the surfaces of the gantry 1 and the trolley 3 are sprayed with a polyurethane coating protective layer to strengthen protection and prevent surface corrosion and ultraviolet radiation.
[0049] In the description of this specification, terms such as "connection", "installation", "fixation" should all be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0050] In the description of this specification, the description of terms such as "one embodiment", "some embodiments" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.
[0051] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.
Claims
1. A low temperature outdoor gantry crane, characterized in that: It comprises a gantry (1) and two parallel main rails (10); the bottom end of the gantry (1) is provided with gantry running wheels (2) distributed in a rectangular shape corresponding to the two main rails (10); a trolley (3) is provided on the top of the gantry (1), the bottom of the trolley (3) is provided with trolley running wheels, and an electric hoist (4) is provided on the trolley (3); Electric heating belts are arranged on the first drive motor of the gantry running wheel (2), the second drive motor of the trolley running wheel and the lifting motor of the electric hoist (4); a windproof iron wedge (5) is arranged at the bottom of the gantry (1) in front of or behind the gantry running wheel (2); an anchoring assembly (6) is arranged at the bottom of the gantry (1); wind ropes (7) are connected to the bottom of both sides of the gantry (1), and a plurality of ground anchors are arranged on both sides of the two main rails (10) along the length direction of the main rails (10); a protective cover (8) is fixedly arranged on the top of the trolley (3).
2. The cryogenic outdoor gantry crane according to claim 1, characterized in that: The door frame (1) comprises two parallel main beams (11), and end beams (12) are respectively arranged at both ends between the two main beams (11); one end of the bottom of the main beam (11) is fixedly connected to a rigid support leg (13), and the other end is provided with a flexible support leg (14); the flexible support leg (14) is flexibly connected to the main beam (11) via a hinge seat structure (9).
3. The cryogenic outdoor gantry crane according to claim 2, characterized in that: The hinge seat structure (9) comprises a lower fixing plate (91) fixedly connected to the top of the flexible support leg (14) and an upper fixing plate (92) fixedly connected to the bottom of the main beam (11); lower connecting plates (93) are symmetrically fixedly arranged at both ends of the top surface of the lower fixing plate (91); upper connecting plates (94) are arranged one by one on the outer sides of each of the lower connecting plates (93); two upper connecting plates (94) are rotatably connected to the two lower connecting plates (93) via an axle rod (95); a limiting plate (96) is fixedly arranged on the top surface of the lower fixing plate (91) below the upper connecting plate (94); a gap is left between the top surface of the limiting plate (96) and the bottom surface of the upper connecting plate (94), so that the upper connecting plate (94) can only rotate by 0.5°-0.8°.
4. The cryogenic outdoor gantry crane according to claim 1, characterized in that: The anchor assembly (6) comprises an anchor seat (61) fixedly arranged at the bottom of the door frame (1), one side of the bottom of the anchor seat (61) is fixedly connected to an anchor bracket (62), a vertical channel (63) is arranged on the anchor bracket (62), an anchor shaft (64) passes through the vertical channel (63), a handle (65) is fixedly connected to the top of the anchor shaft (64), limit blocks are symmetrically fixedly arranged on both sides of the anchor shaft (64), the vertical channel (63) is provided with a through groove (66) corresponding to the limit block, and one side of the main track (10) is provided with a plurality of anchor pits along its length direction corresponding to the anchor shaft (64).
5. The cryogenic outdoor gantry crane according to claim 1, characterized in that: One end of the gantry running wheel (2) and one end of the trolley running wheel are respectively provided with a wooden track sweeper (21).
6. The cryogenic outdoor gantry crane according to claim 1, characterized in that: A maintenance walkway (15) is fixedly provided on one side of the top of the gantry (1), the top surface of the maintenance walkway (15) is paved with a grating plate, and a walkway guardrail (16) is fixedly provided on the outer side of the top surface of the maintenance walkway (15); a ladder (17) connected to the maintenance walkway (15) is fixedly provided on one side of the gantry (1), and a ladder guardrail (18) is fixedly provided on the ladder (17).
7. The cryogenic outdoor gantry crane according to claim 1, characterized in that: The door frame (1) and the trolley (3) are made of Q355C or Q355D material with low brittleness.
8. The cryogenic outdoor gantry crane according to claim 1, characterized in that: The surfaces of the door frame (1) and the trolley (3) are sprayed with a polyurethane coating protective layer.