Gantry crane

Abstract

The utility model relates to the technical field of cranes, and discloses a gantry crane which comprises a gantry frame assembly, a trolley assembly and an electrical room, the gantry frame assembly comprises two main beams, an upper cross beam and supporting legs, the two main beams are arranged in parallel, each of the two main beams is formed by assembling five sections, the upper cross beam is arranged between the two main beams, and the trolley assembly is arranged in the electrical room. The trolley assembly is slidably arranged on the upper end surface of the main beam, the lower end of the trolley assembly is provided with a lifting rope through an upper guide wheel, the lower end of the lifting rope is provided with a lifting rod through a lower guide wheel, and the lower end of the lifting rod is provided with a muck frame. According to the gantry crane, the two main beams are each formed by assembling five sections, dismounting and adjusting can be conducted according to needs, the hydraulic cylinders work to push the driving connecting rods to rotate, then the vertical rods drive the limiting towing hooks to be connected with the protruding shafts in a clamped mode, then the lifting ropes are loosened downwards, the lifting rods descend, and under the limiting and supporting effects of the limiting towing hooks, muck frames are overturned, and muck is automatically poured out; time and labor are saved.

Description

Technical Field

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

[0002] A gantry crane is a type of bridge crane with a horizontal bridge frame set on two legs to form a gantry shape, mainly used for handling and installation operations in open storage yards, shipyards, power stations, ports, railway freight stations and other places.

[0003] Since the main beam of the existing gantry crane is generally an integral structure, it is not convenient to install, time-consuming and laborious, increasing the labor intensity of the staff, and cannot be adjusted according to needs. When lifting construction waste, it cannot effectively turn the waste automatically. Therefore, a gantry crane is needed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model provides a gantry crane to solve the problems mentioned in the above background.

[0005] The utility model provides the following technical solution: A gantry crane, including a gantry frame assembly, a trolley assembly and an electrical room. The gantry frame assembly includes a main beam, an upper cross beam and legs. There are two main beams, and the two main beams are arranged in parallel. Each of the two main beams is assembled by five segments. The upper cross beam is arranged between the two main beams. The legs are arranged at the lower end of the main beam. The trolley assembly is slidably arranged on the upper surface of the main beam. A lifting rope is arranged at the lower end of the trolley assembly through an upper guide wheel. The lower end of the lifting rope is provided with a suspension rod through a lower guide wheel, and a construction waste box is arranged at the lower end of the suspension rod.

[0006] Preferably, one end of the trolley assembly is provided with a hydraulic cylinder through a mounting seat. The output end of the hydraulic cylinder is provided with a driving connecting rod, and a vertical rod is arranged at the lower end of the driving connecting rod.

[0007] Preferably, a limit drag hook is arranged at the lower end of the vertical rod, and a convex shaft matched with the limit drag hook is arranged at the lower end of the side wall of the construction waste box.

[0008] Preferably, a trolley rain cover is arranged at the upper end of the trolley assembly, and a trolley limit frame is arranged at one side of the trolley assembly.

[0009] Preferably, a ladder is arranged at one side of one end of the gantry frame assembly. A platform is arranged at the upper end of the ladder. The inner side of the platform is connected with the main beam, and a guardrail is arranged at the outer side of the platform.

[0010] Preferably, a driver's cab is arranged at the middle end of the inner side of the ladder, and the electrical room is arranged on the upper surface of the platform.

[0011] Preferably, a support is provided on the lower surface of the main beam, a fixing bolt is provided at the lower end of the support, and the support is connected to the leg through the fixing bolt.

[0012] Preferably, a lower cross beam is provided at the lower end of the leg, a trolley traveling mechanism is provided at the lower end of the lower cross beam, and a counterweight is provided on one side of the lower cross beam.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. For this gantry crane, both main beams are assembled from five segments, which can be disassembled and adjusted as needed, with a wide range of applications. By providing legs, the main beams can be effectively supported, and by providing counterweights, the stability of the gantry crane is further ensured.

[0015] 2. For this gantry crane, through the operation of the hydraulic cylinder, the driving connecting rod is pushed to rotate, driving the vertical rod to move. Then, the vertical rod drives the limit hook to be engaged with the convex shaft, and then the lifting rope is loosened downward, and the boom descends. Under the limiting and supporting action of the limit hook, the muck box is flipped to automatically dump the muck, saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a side view of the overall structure of the gantry crane of the present utility model;

[0017] Figure 2 It is a front view of the overall structure of the gantry crane of the present utility model;

[0018] Figure 3 It is a side view of the gantry frame assembly of the present utility model;

[0019] Figure 4 It is a front view of the gantry frame assembly of the present utility model;

[0020] Figure 5 It is a schematic diagram of the working principle of the muck box of the present utility model.

[0021] In the figure: 1. Main beam; 101. Upper cross beam; 102. Support; 103. Fixing bolt; 104. Leg; 105. Lower cross beam; 106. Trolley traveling mechanism; 2. Trolley rain cover; 3. Trolley assembly; 4. Trolley limit frame; 5. Lifting rope; 6. Muck box; 601. Convex shaft; 7. Driver's cab; 8. Ladder; 9. Hydraulic cylinder; 10. Vertical rod; 1001. Limit hook; 11. Counterweight; 12. Electrical room. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-5 , a gantry crane, including a gantry frame assembly, a trolley assembly 3 and an electrical room 12. The gantry frame assembly includes a main beam 1, an upper cross beam 101 and legs 104. There are two main beams 1, and the two main beams 1 are arranged in parallel. Each of the two main beams 1 is assembled by five segments. The upper cross beam 101 is arranged between the two main beams 1, and the legs 104 are arranged at the lower ends of the main beams 1. The trolley assembly 3 is slidably arranged on the upper surface of the main beam 1. A lifting rope 5 is arranged at the lower end of the trolley assembly 3 through an upper guide wheel. A suspension rod is arranged at the lower end of the lifting rope 5 through a lower guide wheel, and a muck box 6 is arranged at the lower end of the suspension rod.

[0024] Wherein, one end of the trolley assembly 3 is provided with a hydraulic cylinder 9 through a mounting seat. A driving connecting rod is arranged at the output end of the hydraulic cylinder 9. A vertical rod 10 is arranged at the lower end of the driving connecting rod. A limiting drag hook 1001 is arranged at the lower end of the vertical rod 10. A convex shaft 601 that cooperates with the limiting drag hook 1001 is arranged at the lower end of the side wall of the muck box 6. By the operation of the hydraulic cylinder 9, the driving connecting rod is pushed to rotate, driving the vertical rod 10 to move. Further, the vertical rod 10 drives the limiting drag hook 1001 to be engaged with the convex shaft 601, and then the lifting rope 5 is loosened downward, and the suspension rod descends. Under the limiting and supporting action of the limiting drag hook 1001, the muck box 6 is turned over to automatically dump the muck, which is time-saving and labor-saving.

[0025] Wherein, a trolley rain cover 2 is arranged at the upper end of the trolley assembly 3, and a trolley limiting frame 4 is arranged on one side of the trolley assembly 3. By arranging the trolley rain cover 2, the trolley assembly 3 can be effectively protected from sun and rain, and the service life of the trolley assembly 3 can be prolonged. By arranging the trolley limiting frame 4, the trolley assembly 3 can be effectively limited.

[0026] Wherein, a ladder 8 is arranged on one side of one end of the gantry frame assembly. A platform is arranged at the upper end of the ladder 8. The inner side of the platform is connected to the main beam 1, and a guardrail is arranged on the outer side of the platform. A driver's cab 7 is arranged in the middle of the inner side of the ladder 8. The electrical room 12 is arranged on the upper surface of the platform. By arranging the ladder 8, it is convenient for the staff to climb onto the platform. By arranging the guardrail, the staff can be protected. By arranging the driver's cab 7, it is convenient for the driver to control the operation of the gantry crane.

[0027] Among them, a support 102 is provided on the lower end surface of the main beam 1. A fixing bolt 103 is provided at the lower end of the support 102. The support 102 is connected to the leg 104 through the fixing bolt 103. A lower cross beam 105 is provided at the lower end of the leg 104. A trolley traveling mechanism 106 is provided at the lower end of the lower cross beam 105. A counterweight 11 is provided on one side of the lower cross beam 105. By providing the leg 104, the main beam 1 can be effectively supported. By providing the counterweight 11, the stability of the gantry crane is further ensured.

[0028] Working principle: Both main beams 1 are assembled from five segments and can be disassembled and adjusted as needed, with a wide range of applications. By providing the leg 104, the main beam 1 can be effectively supported. By providing the counterweight 11, the stability of the gantry crane is further ensured. By providing the trolley rain cover 2, the trolley assembly 3 can be effectively protected from sun and rain, extending the service life of the trolley assembly 3. By providing the trolley limit frame 4, the trolley assembly 3 can be effectively limited.

[0029] Furthermore, by providing a ladder 8, it is convenient for the staff to climb onto the platform. By providing a guardrail, it can protect the staff. By providing a driver's cab 7, it is convenient for the driver to control the operation of the gantry crane. When the hydraulic cylinder 9 works, it pushes the driving connecting rod to rotate, drives the vertical rod 10 to move, and then the vertical rod 10 drives the limit hook 1001 to be engaged with the convex shaft 601. Then, the lifting rope 5 is loosened downward, and the boom descends. Under the limit support of the limit hook 1001, the muck box 6 is turned over to automatically dump the muck, saving time and effort.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gantry crane, characterized in that: The invention comprises a gantry assembly, a trolley assembly (3) and an electrical room (12), wherein the gantry assembly comprises a main beam (1), an upper cross beam (101) and a support leg (104), wherein two main beams (1) are provided, the two main beams (1) are arranged in parallel, and the two main beams (1) are assembled from five sections, the upper cross beam (101) is arranged between the two main beams (1), the support leg (104) is arranged at the lower end of the main beam (1), the trolley assembly (3) is slidably arranged on the upper end surface of the main beam (1), the lower end of the trolley assembly (3) is provided with a suspension rope (5) through an upper guide wheel, the lower end of the suspension rope (5) is provided with a suspension rod through a lower guide wheel, and a slag frame (6) is arranged at the lower end of the suspension rod.

2. A gantry crane according to claim 1, characterized in that: A hydraulic cylinder (9) is arranged at one end of the trolley assembly (3) through a mounting seat, a driving connecting rod is arranged at the output end of the hydraulic cylinder (9), and a vertical rod (10) is arranged at the lower end of the driving connecting rod.

3. A gantry crane according to claim 2, characterized in that: A limited drag hook (1001) is provided at the lower end of the vertical rod (10), and a convex shaft (601) cooperating with the limited drag hook (1001) is provided at the lower end of the side wall of the slag frame (6).

4. A gantry crane according to claim 1, characterized in that: A trolley rain cover (2) is arranged at the upper end of the trolley assembly (3), and a trolley limiting frame (4) is arranged at one side of the trolley assembly (3).

5. The gantry crane according to claim 1, characterized in that: A ladder (8) is arranged on one side of one end of the gantry assembly, a platform is arranged on the upper end of the ladder (8), the inner side of the platform is connected to the main beam (1), and a guardrail is arranged on the outer side of the platform.

6. A gantry crane according to claim 5, characterized in that: A driver's cab (7) is arranged at the inner middle end of the ladder (8), and the electrical room (12) is arranged on the upper end surface of the platform.

7. The gantry crane according to claim 1, characterized in that: A support (102) is provided on the lower end surface of the main beam (1), a fixing bolt (103) is provided at the lower end of the support (102), and the support (102) is connected to the support leg (104) via the fixing bolt (103).

8. The gantry crane according to claim 1, characterized in that: A lower cross beam (105) is provided at the lower end of the support leg (104), a trolley running mechanism (106) is provided at the lower end of the lower cross beam (105), and a counterweight block (11) is provided on one side of the lower cross beam (105).

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