Portal crane with rain cover

Abstract

The utility model relates to the technical field of cranes, and provides a portal crane with a rain cover, which comprises a main beam, support legs for supporting are fixedly mounted at two ends of the main beam, a lifting trolley for lifting a heavy object is slidably connected to the top of the main beam, a top plate is fixedly mounted at the tops of the support legs, and the rain cover is fixedly mounted on the top plate. A rainproof top cover is fixedly mounted at the top of the top plate; according to the portal crane with the rainproof cover, the rolling assembly can be rolled out downwards according to the required rainproof range to increase the rainproof range, the rainproof cloth can slide in the limiting assembly under the action of a gravity rod at the tail end of the rainproof cloth, and the rainproof cover can slide in the limiting assembly according to the action of the driving assembly on the limiting assembly; and the protection angle of the rainproof cloth can be adjusted accordingly, so that the overall rainproof part can be adjusted according to the use condition of the portal crane and the rainfall and wind speed, and the problem that the rainproof height and angle of the side edge cannot be adjusted is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and in particular to a gantry crane with a rainproof cover. Background Art

[0002] Gantry cranes, also known as gantry cranes, are bridge cranes with the bridge supported on the ground track by outriggers on both sides. The structure of a gantry crane consists of a gantry, a trolley running mechanism, a lifting trolley and an electrical part. Some gantry cranes have outriggers on only one side, and the other side is supported on a factory building or a trestle, which is called a semi-gantry crane. The gantry crane is composed of the upper bridge (including the main beam and end beam), outriggers, and lower crossbeams.

[0003] A Chinese patent discloses a gantry crane, with the publication number CN208103762U. The article proposes "including a main beam, the left and right parts of the lower side of the main beam are connected to legs through an adjustment structure, the lower side of the main beam is connected to a cab through a fixed structure, the left and right parts of the main beam are respectively provided with a left rainproof structure and a right rainproof structure; the left rainproof structure includes a third hydraulic cylinder, a left connecting rod, a left cover plate and a left stopper, a third hydraulic cylinder placed transversely is provided on the left side of the front of the main beam, the free end of the third hydraulic cylinder is connected to a third piston rod, and a left cover plate covering the upper side of the main beam is provided on the left side of the upper side of the main beam The left end of the left cover is connected with a left rain cover inclined downward, the right end of the left cover is vertically connected with a vertical left stopper, a plurality of protrusions are evenly arranged on the right end surface of the left stopper, the lower side of the left part of the left cover is vertically connected with a left connecting rod, and the lower part of the left connecting rod is hinged on the front face of the main beam". The gantry crane achieves rain protection on the top of the overall gantry crane through the action of the left rain cover and the right rain cover, and since the side of the gantry crane also needs to be rainproof, and it cannot be adjusted according to the required rain protection height and angle of the side, the rain protection effect of the overall gantry crane on the side is reduced. Utility Model Content

[0004] The purpose of the utility model is to provide a gantry crane with a rain cover, which solves the problem in the related art that the rain cover cannot be adjusted according to the required rain protection height and angle of the side during use, thereby reducing the rain protection effect of the whole gantry crane on the side.

[0005] The technical solution of the utility model is as follows:

[0006] A gantry crane with a rain cover comprises a main beam, support legs are fixedly installed at both ends of the main beam, a lifting trolley for lifting heavy objects is slidably connected to the top of the main beam, a top plate is fixedly installed on the top of the support legs, a top cover for rain protection is fixedly installed on the top of the top plate, a winding rod is rotatably connected to the top of the top plate, a rainproof cloth for protection is fixedly installed on the outer side of the winding rod, a gravity rod for keeping downward is fixedly installed on the end of the rainproof cloth, a winding assembly for winding up the rainproof cloth is arranged inside the top cover, limiting assemblies for limiting the moving position of the rainproof cloth are arranged at both ends of the top plate, and driving assemblies for driving the limiting assemblies for angle adjustment are also arranged at both ends of the top plate.

[0007] Preferably, the winding assembly includes two driving rods rotatably connected inside the top cover, one end of the two driving rods is fixedly installed with a driving gear, the other end of the driving rod and the winding rod are fixedly installed with a linkage wheel, and the outer side of the linkage wheel is provided with a belt.

[0008] Preferably, the winding assembly further comprises a driving motor fixedly mounted inside the top cover, and an output end of the driving motor is fixedly connected to one end of the driving rod.

[0009] Preferably, the limiting assembly includes two side frames rotatably connected at both ends of the top plate, the bottom ends of the two side frames are rotatably connected to vertical frames, the two ends of the gravity rod are slidably connected to the inner walls of the side frames, the bottom inner walls of the side frames are slidably connected to side rods, the bottom ends of the side rods are rotatably connected to vertical rods, and the outer sides of the bottom ends of the vertical rods are slidably connected to the top inner walls of the vertical frames.

[0010] Preferably, the limit assembly also includes a limit spring fixedly installed on the other ends of the side rod and the vertical rod, the other ends of the limit spring are respectively fixedly connected to the inner walls of the side rod and the vertical rod, and a protective outer rod and a protective inner rod are fixedly installed on the outer sides of the two side frames.

[0011] Preferably, the driving assembly includes a fixing rod fixedly installed at both ends of the top plate, the outer side of the fixing rod is rotatably connected to an adjusting rod, the top end of the adjusting rod is rotatably connected to a displacement seat, the outer side of the displacement seat is slidably connected to a limiting seat, and the outer side of the limiting seat is fixedly connected to the outer side of the side frame.

[0012] Preferably, the driving assembly further comprises two first electric telescopic rods fixedly mounted at both ends of the displacement seat, and the fixed ends of the two first electric telescopic rods are fixedly connected to the inner walls at both ends of the limiting seat.

[0013] Preferably, the bottom end of the fixed rod is slidably connected to an adjustable inner rod, the outer side of the adjustable inner rod is slidably connected to an adjustable outer rod, the other end of the adjustable outer rod is fixedly connected to the outer side of the bottom end of the vertical frame, a displacement spring is fixedly installed inside the adjustable outer rod, the other end of the displacement spring is fixedly connected to the other end of the adjustable inner rod, two second electric telescopic rods are fixedly installed on the inner side wall of the fixed rod, and the telescopic ends of the two second electric telescopic rods are fixedly connected to one end of the adjustable inner rod.

[0014] Beneficial effects of the utility model:

[0015] The reeling assembly can be rolled downward to increase the rain protection range according to the required rain protection range, and the gravity rod at the end of the rain protection cloth allows the rain protection cloth to slide inside the limiting assembly. The protection angle of the rain protection cloth can be adjusted according to the action of the driving assembly on the limiting assembly, so that the overall rain protection part can be adjusted according to the use of the gantry crane and the amount of rain and wind speed, thereby solving the problem of being unable to adjust the side rain protection height and angle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the main beam structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the winding component of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the limit assembly of the utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the drive assembly of the utility model;

[0022] In the figure: 1. main beam; 11. supporting feet; 12. lifting trolley; 2. top plate; 3. top cover; 4. winding rod; 41. rainproof cloth; 42. gravity rod; 5. winding assembly; 51. driving rod; 52. driving gear; 53. linkage wheel; 54. belt; 55. driving motor; 6. limiting assembly; 61. side frame; 62. vertical frame; 63. side rod; 64. vertical rod; 65. limiting spring; 66. protective outer rod; 67. protective inner rod; 7. driving assembly; 71. fixing rod; 72. adjusting rod; 73. displacement seat; 74. limiting seat; 75. first electric telescopic rod; 8. adjusting inner rod; 81. adjusting outer rod; 82. displacement spring; 83. second electric telescopic rod. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1 , Figure 2 as well as Figure 3 The present embodiment proposes a gantry crane with a rain cover, comprising a main beam 1, support legs 11 for supporting are fixedly installed at both ends of the main beam 1, a lifting trolley 12 for lifting heavy objects is slidably connected to the top of the main beam 1, a top plate 2 is fixedly installed on the top of the support legs 11, a top cover 3 for rain protection is fixedly installed on the top of the top plate 2, a winding rod 4 is rotatably connected to the top of the top plate 2, a rainproof cloth 41 for protection is fixedly installed on the outer side of the winding rod 4, a gravity rod 42 for keeping downward is fixedly installed at the end of the rainproof cloth 41, a winding component 5 for winding up the rainproof cloth 41 is arranged inside the top cover 3, and a limiting component 6 for limiting the moving position of the rainproof cloth 41 is arranged at both ends of the top plate 2. Both ends of the cover 3 are also provided with driving components 7 for driving the angle adjustment of the limit component 6. When the gantry crane is protected from rain, the reeling rod 4 can be driven by the reeling component 5 inside the top cover 3, so that the reeling rod 4 can roll out the rainproof cloth 41 on it, and the end of the rainproof cloth 41 slides inside the limit component 6 through the action of the gravity rod 42, so that the reeling length of the rainproof cloth 41 can be adjusted according to the required rainproof range, so that it can be more effectively applied to the rainproof effect of different rainfall. The limit component 6 can also be acted on by the driving component 7 so that the limit component 6 can adjust and rotate the rainproof angle of the rainproof cloth 41, so that the overall rainproof part is more suitable for the rainproof effect of the gantry crane;

[0025] See also Figure 3 , Figure 4 as well as Figure 5The present embodiment provides a gantry crane with a rain cover. The winding assembly 5 includes two driving rods 51 rotatably connected inside the top cover 3. One end of the two driving rods 51 is fixedly installed with a driving gear 52. The other ends of the driving rods 51 and the winding rod 4 are fixedly installed with a linkage wheel 53. The outer side of the linkage wheel 53 is provided with a belt 54. The winding assembly 5 also includes a driving motor 55 fixedly installed inside the top cover 3. The output end of the driving motor 55 is fixedly connected to one end of the driving rod 51. When the rainproof cloth 41 needs to be wound up, the driving motor 55 can drive the driving rod 51, and then the two driving rods 51 can be relatively rotated in the opposite direction through the action of the driving gear 52, and then the top cover can be driven through the action of the linkage wheel 53 and the belt 54. The reeling rods 4 on both sides rotate in opposite directions relative to each other, so as to synchronously retract and release the rainproof cloths 41 on both sides of the main beam 1. The limit assembly 6 includes two side frames 61 rotatably connected at both ends of the top plate 2, and the bottom ends of the two side frames 61 are rotatably connected with vertical frames 62. The two ends of the gravity rod 42 are slidably connected with the inner side walls of the side frames 61, and the bottom inner wall of the side frame 61 is slidably connected with a side rod 63, and the bottom end of the side rod 63 is rotatably connected with a vertical rod 64. The outer side of the bottom end of the vertical rod 64 is slidably connected with the top inner wall of the vertical frame 62. The limit assembly 6 also includes a limit spring 65 fixedly installed at the other ends of the side rod 63 and the vertical rod 64, and the other ends of the limit spring 65 are respectively fixedly connected with the inner side walls of the side rod 63 and the vertical rod 64. The outer sides of the two side frames 61 are fixedly installed with protective outer rods 66 and Protective inner rod 67, when the rainproof cloth 41 is folded and released, the rainproof cloth 41 slides inside the side frame 61 and the vertical frame 62 through the action of the gravity rod 42, thereby improving the rain and windproof effect of the rainproof cloth 41. When the angle of the rainproof cloth 41 is adjusted, the side frames 61 can be rotated on both sides of the top plate 2, and the vertical frame 62 can always maintain a downward vertical angle, thereby increasing the rainproof effect of the rainproof cloth 41. When the angles of the side frames 61 and the vertical frames 62 are rotated, the side rods 63 and the vertical rods 64 rotate relatively to each other in the same manner, and slide inside the side frames 61 and the vertical frames 62 respectively through the action of the limit springs 65, thereby maintaining the limit sliding effect of the side frames 61 and the vertical frames 62 on the gravity rod 42. The driving assembly 7 includes fixed rods 71 ​​fixedly installed at both ends of the top plate 2, and the outer side of the fixed rods 71 ​​rotates The top end of the adjusting rod 72 is rotatably connected to the displacement seat 73, the outer side of the displacement seat 73 is slidably connected to the limited seat 74, the outer side of the limited seat 74 is fixedly connected to the outer side of the side frame 61, and the driving assembly 7 also includes two first electric telescopic rods 75 fixedly installed at both ends of the displacement seat 73, and the fixed ends of the two first electric telescopic rods 75 are fixedly connected to the inner walls of the two ends of the limited seat 74. When it is necessary to adjust the angle of the side frame 61, the displacement seat 73 can be driven to slide inside the limited seat 74 by the first electric telescopic rod 75, so that the top end of the adjusting rod 72 can follow the displacement seat 73 to slide inside the limited seat 74, so that the side frame 61 rotates on the outer side of the top plate 2, thereby achieving the effect of adjusting the angle of the side frame 61 on the limited seat 74.The bottom end of the fixed rod 71 is slidably connected with an adjusting inner rod 8, and the outer side of the adjusting inner rod 8 is slidably connected with an adjusting outer rod 81. The other end of the adjusting outer rod 81 is fixedly connected to the outer side of the bottom end of the vertical frame 62. A displacement spring 82 is fixedly installed inside the adjusting outer rod 81, and the other end of the displacement spring 82 is fixedly connected to the other end of the adjusting inner rod 8. Two second electric telescopic rods 83 are fixedly installed on the inner wall of the fixed rod 71. The telescopic ends of the two second electric telescopic rods 83 are fixedly connected to one end of the adjusting inner rod 8. When the side frame 61 is rotated for angle adjustment, the vertical frame 62 is kept parallel to the fixed rod 71 by the action of the adjusting outer rod 81 and the adjusting inner rod 8, and can be lifted and slid on the fixed rod 71 by the second electric telescopic rod 83 following its position while moving, so that the vertical state of the vertical frame 62 downward can be maintained after the side frame 61 is rotated.

[0026] In the present embodiment, when in use, the driving rod 51 is first used to drive the winding rods 4 on both sides of the top plate 2 to be synchronously driven in opposite directions, so that the winding rods 4 can roll out the rainproof cloth 41 downward to increase or decrease the rainproof range according to the required rainproof range, and the gravity rod 42 at the end of the rainproof cloth 41 can make the rainproof cloth 41 slide on the inner side of the side frame 61 and the vertical frame 62 to maintain the rainproof and windproof effect of the rainproof cloth 41 on both sides of the main beam 1. The supporting position of the side rod 63 can be adjusted by the adjusting rod 72 according to the sliding of the displacement seat 73 on the inner side of the limit seat 74, so that the side frame 61 can rotate on both sides of the top plate 2 to adjust the protection angle of the rainproof cloth 41, so that the overall rainproof part can be adjusted according to the use of the gantry crane and the amount of rainfall and wind speed.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gantry crane with a rain cover, comprising a main beam (1), wherein two ends of the main beam (1) are fixedly mounted with supporting legs (11) for supporting, and the top of the main beam (1) is slidably connected with a lifting trolley (12) for lifting heavy objects, characterized in that: A top plate (2) is fixedly mounted on the top of the support foot (11), a top cover (3) for rain protection is fixedly mounted on the top of the top plate (2), a reeling rod (4) is rotatably connected to the top of the top plate (2), a rainproof cloth (41) for protection is fixedly mounted on the outside of the reeling rod (4), a gravity rod (42) for keeping downward movement is fixedly mounted on the end of the rainproof cloth (41), a reeling assembly (5) for reeling in the rainproof cloth (41) is arranged inside the top cover (3), limiting assemblies (6) for limiting the moving position of the rainproof cloth (41) are arranged at both ends of the top plate (2), and driving assemblies (7) for driving the limiting assembly (6) for angle adjustment are also arranged at both ends of the top plate (2).

2. A gantry crane with a rain cover according to claim 1, characterized in that: The winding assembly (5) comprises two driving rods (51) rotatably connected inside the top cover (3), one end of the two driving rods (51) being fixedly mounted with a driving gear (52), and the other ends of the driving rods (51) and the winding rod (4) being fixedly mounted with a linkage wheel (53), and the outer side of the linkage wheel (53) being sleeved with a belt (54).

3. A gantry crane with a rain cover according to claim 2, characterized in that: The winding assembly (5) further comprises a driving motor (55) fixedly mounted inside the top cover (3), wherein an output end of the driving motor (55) is fixedly connected to one end of the driving rod (51).

4. A gantry crane with a rain cover according to claim 1, characterized in that: The limiting assembly (6) comprises two side frames (61) rotatably connected to both ends of the top plate (2); the bottom ends of the two side frames (61) are rotatably connected to vertical frames (62); the two ends of the gravity rod (42) are slidably connected to the inner side walls of the side frames (61); the bottom inner wall of the side frame (61) is slidably connected to a side rod (63); the bottom end of the side rod (63) is rotatably connected to a vertical rod (64); the bottom outer side of the vertical rod (64) is slidably connected to the top inner wall of the vertical frame (62).

5. A gantry crane with a rain cover according to claim 4, characterized in that: The limiting assembly (6) further comprises a limiting spring (65) fixedly mounted on the other ends of the side rod (63) and the vertical rod (64); the other ends of the limiting spring (65) are respectively fixedly connected to the inner side walls of the side rod (63) and the vertical rod (64); and a protective outer rod (66) and a protective inner rod (67) are fixedly mounted on the outer sides of the two side frames (61).

6. A gantry crane with a rain cover according to claim 1, characterized in that: The driving assembly (7) comprises a fixing rod (71) fixedly mounted at both ends of the top plate (2); an outer side of the fixing rod (71) is rotatably connected to an adjusting rod (72); a top end of the adjusting rod (72) is rotatably connected to a displacement seat (73); an outer side of the displacement seat (73) is slidably connected to a limit seat (74); and an outer side of the limit seat (74) is fixedly connected to an outer side of the side frame (61).

7. A gantry crane with a rain cover according to claim 6, characterized in that: The driving assembly (7) further comprises two first electric telescopic rods (75) fixedly mounted at both ends of the displacement seat (73), wherein the fixed ends of the two first electric telescopic rods (75) are fixedly connected to the inner walls at both ends of the limit seat (74).

8. A gantry crane with a rain cover according to claim 6, characterized in that: The bottom end of the fixed rod (71) is slidably connected to an adjustable inner rod (8), the outer side of the adjustable inner rod (8) is slidably connected to an adjustable outer rod (81), the other end of the adjustable outer rod (81) is fixedly connected to the outer side of the bottom end of the vertical frame (62), a displacement spring (82) is fixedly installed inside the adjustable outer rod (81), the other end of the displacement spring (82) is fixedly connected to the other end of the adjustable inner rod (8), and two second electric telescopic rods (83) are fixedly installed on the inner side wall of the fixed rod (71), and the telescopic ends of the two second electric telescopic rods (83) are fixedly connected to one end of the adjustable inner rod (8).

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