Anti-derailing portal crane

Abstract

The utility model relates to the technical field of portal cranes, and discloses an anti-derailing portal crane which comprises a track, and limiting openings are formed in the track at equal intervals, clamping grooves are formed in the outer wall of the track, a bottom plate is arranged at the top of the track, and rotating wheels are arranged at the bottom of the bottom plate. The first motor is started to drive the first bevel gear to rotate, the first bevel gear rotates to drive the second bevel gear to rotate, the second bevel gear rotates to drive the threaded pipe to move, the threaded pipe moves to drive the fixing block to move, and the fixing block moves to drive the spring and the limiting block to move, so that the limiting block moves to the bottom of the inner wall of the track to conduct extrusion. When the crane slides due to inertia, the limiting block moves along with the movement of the crane, and when the limiting block moves to the limiting opening, the spring extrudes the limiting block to move into the limiting opening, so that the effects of limiting the crane and preventing the crane from derailing due to inertia sliding are achieved.

Description

Technical Field

[0001] This utility model relates to the field of gantry crane technology, specifically to a gantry crane designed to prevent derailment. Background Technology

[0002] Gantry cranes, also known as portal cranes or portal gantry cranes, are a variation of bridge cranes, widely used in industrial production, logistics warehousing, and port terminals. In industrial manufacturing, they are used for handling raw materials and installing equipment in industries such as steel, machinery, and chemicals. In logistics warehousing, they enable rapid loading, unloading, sorting, and stacking of goods, improving warehousing efficiency. In port terminals, they handle the loading and unloading of containers and bulk cargo, serving as core equipment for port logistics. In construction engineering, they are used for hoisting prefabricated components and installing large equipment. In the energy sector, they are used for hoisting and maintaining heavy equipment in projects such as hydropower stations and nuclear power plants.

[0003] Existing gantry cranes do not have effective anti-derailment functions, which may lead to equipment damage and increased maintenance costs. Derailment may cause serious wear or deformation of key components such as crane wheels, rails, and main beams, and may even cause structural fracture. Frequent derailment accidents will increase the cost of maintenance and replacement of parts and affect the service life of the equipment.

[0004] Therefore, a gantry crane designed to prevent derailment is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a gantry crane that prevents derailment, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gantry crane with anti-derailment features, comprising a track; equidistant limit openings are provided inside the track, clamping grooves are provided on the outer wall of the track, a base plate is provided on the top of the track, a wheel is provided at the bottom of the base plate, a support frame is fixedly connected to the top of the base plate, a crossbeam is fixedly connected to the top of the support frame, a lifting assembly is provided at the bottom of the crossbeam, a limit assembly is provided at the bottom of the base plate, and a clamping assembly is provided on one side of the limit assembly;

[0007] The limiting component includes a fixed post, which is disposed at the bottom of the base plate. The top of the fixed post is fixedly connected to the bottom of the base plate. The fixed post has a movable groove I inside, and a connecting hole is provided on one side of the inner wall of the movable groove I. The fixed post has a movable groove II at the bottom. The limiting component includes a rotating wheel baffle, which is disposed inside the rotating wheel.

[0008] Preferably, the rotating wheel is adapted to the track, the rotating wheel baffle is adapted to the track, a placement platform is fixedly connected to the outer wall of the fixed column, a motor is fixedly connected to the top of the placement platform, a bevel gear is fixedly connected to the output end of the motor, and a bevel gear is meshed with the bevel gear.

[0009] Preferably, a connecting shaft is provided on one side of the first bevel gear, the outer wall of one end of the connecting shaft is rotatably connected to the inner wall of the connecting hole, one side of the connecting shaft is fixedly connected to the output end of the first motor, and the bottom of the second bevel gear is rotatably connected to the bottom of the inner wall of the first movable groove.

[0010] Preferably, the inner wall of the bevel gear two is fixedly connected to a one-way threaded rod, the outer wall of the one-way threaded rod is threadedly connected to a threaded tube, the outer wall of the threaded tube is slidably connected to a slide rail one, and the bottom of the threaded tube is fixedly connected to a fixing block.

[0011] Preferably, one side of the outer wall of the slide rail is fixedly connected to the inner wall of the movable groove, the bottom of the fixed block is provided with a movable opening, the top of the inner wall of the movable opening is fixedly connected with a spring, one end of the spring is fixedly connected with a limit block, the limit block is adapted to the movable opening, and the limit block is adapted to the limit opening.

[0012] Preferably, the clamping assembly includes a fixed chamber, which is disposed on one side of the fixed column and fixedly connected to one side of the fixed column. A placement groove is provided on one side of the inner wall of the fixed chamber. A bidirectional threaded rod is rotatably connected to the inner wall of the fixed chamber. A threaded sleeve is threadedly connected to the outer wall of the bidirectional threaded rod. A slide rail is slidably connected to the top of the threaded sleeve, and a clamping plate is fixedly connected to the bottom of the threaded sleeve.

[0013] Preferably, the top of the slide rail 2 is fixedly connected to the top of the inner wall of the fixed compartment, and the clamping plate is adapted to the clamping groove opened on the outer wall of the track.

[0014] Preferably, the clamping assembly includes a second motor, which is disposed in a placement slot in the fixed chamber. The bottom of the second motor is fixedly connected to the bottom of the inner wall of the placement slot. The output end of the second motor is fixedly connected to a second pulley, which is driven by a belt. The belt is driven by a first pulley, which is fixedly sleeved on the outer wall of the bidirectional threaded rod.

[0015] This utility model provides a gantry crane designed to prevent derailment. It has the following advantages:

[0016] (1) This utility model starts a motor, which drives a bevel gear to rotate. The rotation of the bevel gear drives a second bevel gear to rotate. The rotation of the second bevel gear drives the threaded tube to move. The movement of the threaded tube drives the fixed block to move. The movement of the fixed block drives the spring and the limiting block to move, so that the limiting block moves to the bottom of the inner wall of the track and is pressed. When the crane slides due to inertia, the limiting block moves with the crane. When the limiting block moves to the limiting port, the spring presses the limiting block to move into the limiting port, thereby achieving the effect of limiting the crane and preventing the crane from derailing due to inertia.

[0017] (2) This utility model starts the second motor, the operation of the second motor drives the second pulley to rotate, the rotation of the second pulley drives the first pulley to rotate through the belt, the rotation of the first pulley drives the double threaded rod to rotate, the rotation of the double threaded rod drives the threaded sleeve to move, the two threaded sleeves move towards each other and drive the two clamping plates to move towards each other, the two clamping plates move towards each other until they are embedded in the clamping groove, thereby achieving the effect of preventing the crane from derailing. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 This is a partial cross-sectional view of the limiting component of this utility model;

[0020] Figure 3 This is a partial cross-sectional view of the clamping assembly of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified view of A in the middle.

[0022] In the diagram: 1. Track; 2. Base plate; 3. Rotary wheel; 4. Support frame; 5. Crossbeam; 6. Lifting assembly; 7. Limiting assembly; 711. Fixed column; 712. Placement platform; 713. Motor 1; 714. Bevel gear 1; 715. Bevel gear 2; 716. One-way threaded rod; 717. Threaded pipe; 718. Slide rail 1; 719. Fixed block; 7110. Spring; 7111. Limiting block; 7112. Rotary wheel baffle; 8. Clamping assembly; 811. Fixed compartment; 812. Two-way threaded rod; 813. Threaded sleeve; 814. Slide rail 2; 815. Clamping plate; 816. Pulley 1; 817. Belt; 818. Pulley 2; 819. Motor 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0025] Example 1

[0026] A preferred embodiment of the anti-derailment gantry crane provided by this utility model is, for example... Figure 1-4 As shown: A gantry crane with anti-derailment features includes a rail 1; the rail 1 has equidistant limit openings inside, a clamping groove on the outer wall of the rail 1, a base plate 2 on the top of the rail 1, a wheel 3 on the bottom of the base plate 2, a support frame 4 fixedly connected to the top of the base plate 2, a crossbeam 5 fixedly connected to the top of the support frame 4, a lifting assembly 6 on the bottom of the crossbeam 5, a limit assembly 7 on the bottom of the base plate 2, and a clamping assembly 8 on one side of the limit assembly 7.

[0027] The limiting component 7 includes a fixing post 711, which is located at the bottom of the base plate 2. The top of the fixing post 711 is fixedly connected to the bottom of the base plate 2. The fixing post 711 has a movable groove 1 inside, and a connecting hole is provided on one side of the inner wall of the movable groove 1. The bottom of the fixing post 711 has a movable groove 2. The limiting component 7 also includes a rotating wheel baffle 7112, which is located inside the rotating wheel 3.

[0028] The rotating wheel 3 is adapted to the track 1, the rotating wheel baffle 7112 is adapted to the track 1, the outer wall of the fixed column 711 is fixedly connected to the placement platform 712, the top of the placement platform 712 is fixedly connected to the motor 1 713, the output end of the motor 1 713 is fixedly connected to the bevel gear 1 714, and the bevel gear 1 714 is meshed with the bevel gear 2 715.

[0029] A connecting shaft is provided on one side of the bevel gear 714. The outer wall of one end of the connecting shaft is rotatably connected to the inner wall of the connecting hole. One side of the connecting shaft is fixedly connected to the output end of the motor 713. The bottom of the bevel gear 715 is rotatably connected to the bottom of the inner wall of the movable groove 1.

[0030] The inner wall of bevel gear 2 715 is fixedly connected to a one-way threaded rod 716, the outer wall of the one-way threaded rod 716 is threadedly connected to a threaded tube 717, the outer wall of the threaded tube 717 is slidably connected to a slide rail 718, and the bottom of the threaded tube 717 is fixedly connected to a fixing block 719.

[0031] One side of the outer wall of slide rail 718 is fixedly connected to the inner wall of movable groove 2. The bottom of the fixed block 719 has a movable opening. A spring 7110 is fixedly connected to the top of the inner wall of the movable opening. One end of the spring 7110 is fixedly connected to a limit block 7111. The limit block 7111 is adapted to the movable opening and the limit block 7111 is adapted to the limit opening.

[0032] Furthermore, in this embodiment, by starting motor 713, the operation of motor 713 drives bevel gear 714 to rotate, bevel gear 714 drives bevel gear 715 to rotate, bevel gear 715 drives threaded tube 717 to move, threaded tube 717 drives fixed block 719 to move, and fixed block 719 drives spring 7110 and limit block 7111 to move, so that limit block 7111 moves to press against the bottom of the inner wall of track 1. When the crane slides due to inertia, limit block 7111 moves with the crane. When limit block 7111 moves to the limit opening, spring 7110 presses limit block 7111 into the limit opening, thereby achieving the effect of limiting the crane and preventing the crane from derailing due to inertia.

[0033] Example 2

[0034] Based on Embodiment 1, a preferred embodiment of the anti-derailment gantry crane provided by this utility model is as follows: Figure 1-4 As shown: The clamping assembly 8 includes a fixing chamber 811, which is disposed on one side of the fixing post 711. One side of the fixing chamber 811 is fixedly connected to one side of the fixing post 711. A placement groove is provided on one side of the inner wall of the fixing chamber 811. A bidirectional threaded rod 812 is rotatably connected to the inner wall of the fixing chamber 811. A threaded sleeve 813 is threadedly connected to the outer wall of the bidirectional threaded rod 812. A slide rail 814 is slidably connected to the top of the threaded sleeve 813. A clamping plate 815 is fixedly connected to the bottom of the threaded sleeve 813.

[0035] The top of slide rail 2 814 is fixedly connected to the top of the inner wall of fixed chamber 811, and clamping plate 815 is adapted to the clamping groove opened on the outer wall of track 1.

[0036] The clamping assembly 8 includes a second motor 819, which is disposed in a placement slot opened in the fixed chamber 811. The bottom of the second motor 819 is fixedly connected to the bottom of the inner wall of the placement slot. The output end of the second motor 819 is fixedly connected to a second pulley 818. The second pulley 818 is driven by a belt 817. The belt 817 is driven by a first pulley 816. The first pulley 816 is fixedly sleeved on the outer wall of the bidirectional threaded rod 812.

[0037] Furthermore, in this embodiment, by starting motor 2 819, the operation of motor 2 819 drives pulley 2 818 to rotate. The rotation of pulley 2 818 drives pulley 1 816 to rotate via belt 817. The rotation of pulley 1 816 drives the bidirectional threaded rod 812 to rotate. The rotation of the bidirectional threaded rod 812 drives the threaded sleeve 813 to move. The two threaded sleeves 813 move towards each other, driving the two clamping plates 815 to move towards each other. The two clamping plates 815 move towards each other until they are embedded in the clamping groove, thereby achieving the effect of preventing the crane from derailing.

[0038] In operation, starting motor 2 819 causes pulley 2 818 to rotate. The rotation of pulley 2 818, via belt 817, drives pulley 1 816 to rotate. The rotation of pulley 1 816 drives the double-threaded rod 812 to rotate. The rotation of the double-threaded rod 812 drives the threaded sleeve 813 to move. The movement of the two threaded sleeves 813 towards each other causes the two clamping plates 815 to move towards each other. The two clamping plates 815 move towards each other until they are embedded in the clamping groove, thus preventing the crane from derailing. Then, starting motor 1 713 causes bevel gear 1 714 to rotate. The rotation of 14 drives the second bevel gear 715 to rotate, which in turn drives the threaded tube 717 to move. The movement of the threaded tube 717 drives the fixed block 719 to move, which in turn drives the spring 7110 and the limiting block 7111 to move. This causes the limiting block 7111 to move to the bottom of the inner wall of the track 1 and press against it. When the crane slides due to inertia, the limiting block 7111 moves with the crane. When the limiting block 7111 moves to the limiting port, the spring 7110 presses the limiting block 7111 to move into the limiting port, thereby limiting the crane and preventing it from derailing due to inertia.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A derailment-proof gantry crane, characterized in that The utility model provides a kind of rail (1);The inside equidistance of the rail (1) is opened with limiting port, the outer wall of the rail (1) is opened with clamping groove, the top of the rail (1) is provided with bottom plate (2), the bottom of the bottom plate (2) is provided with runner (3), the top of the bottom plate (2) is fixedly connected with support frame (4), the top of the support frame (4) is fixedly connected with crossbeam (5), the bottom of the crossbeam (5) is provided with hoisting assembly (6), the bottom of the bottom plate (2) is provided with limiting assembly (7), one side of the limiting assembly (7) is provided with clamping assembly (8); The limiting assembly (7) includes a fixed column (711), the fixed column (711) is arranged on the bottom of the bottom plate (2), the top of the fixed column (711) is fixedly connected with the bottom of the bottom plate (2), the inside of the fixed column (711) is opened with a movable groove, the inner wall of the movable groove is opened with a connecting hole, the bottom of the fixed column (711) is opened with a movable groove two The limiting assembly (7) includes a runner baffle (7112), the runner baffle (7112) is arranged in the inside of the runner (3).

2. A door crane according to claim 1, c h a r a c t e r i s e d in that The runner (3) is adapted to the rail (1), the runner baffle (7112) is adapted to the rail (1), the outer wall of the fixed column (711) is fixedly connected with a placing table (712), the top of the placing table (712) is fixedly connected with a motor (713), the output end of the motor (713) is fixedly connected with a bevel gear (714), the bevel gear (714) is meshed with a bevel gear (715).

3. A door crane according to claim 2, c h a r a c t e r i s e d in that: One side of the bevel gear (714) is provided with a connecting shaft, the outer wall of one end of the connecting shaft is rotatably connected with the inner wall of the connecting hole, one side of the connecting shaft is fixedly connected with the output end of the motor (713), the bottom of the bevel gear (715) is rotatably connected with the inner wall bottom of the movable groove one.

4. A door crane according to claim 3, c h a r a c t e r i s e d in that: The inner wall of the bevel gear (715) is fixedly connected with a one-way threaded rod (716), the outer wall of the one-way threaded rod (716) is threadedly connected with a threaded tube (717), the outer wall of the threaded tube (717) is slidably connected with a sliding rail (718), the bottom of the threaded tube (717) is fixedly connected with a fixed block (719).

5. A door crane according to claim 4, c h a r a c t e r i s e d in that: The outer wall of one side of the sliding rail (718) is fixedly connected with the inner wall of the movable groove two, the bottom of the fixed block (719) is opened with a movable port, the inner wall top of the movable port is fixedly connected with a spring (7110), one end of the spring (7110) is fixedly connected with a limiting block (7111), the limiting block (7111) is adapted to the movable port, the limiting block (7111) is adapted to the limiting port.

6. A door crane according to claim 1, c h a r a c t e r i s e d in that: The clamping assembly (8) comprises a fixed bin (811), which is arranged on one side of the fixed column (711), one side of the fixed bin (811) is fixedly connected with one side of the fixed column (711), a placing groove is formed in one side of the inner wall of the fixed bin (811), a two-way threaded rod (812) is rotatably connected with the inner wall of the fixed bin (811), a threaded sleeve (813) is threadedly connected with the outer wall of the two-way threaded rod (812), a slide rail two (814) is slidably connected with the top of the threaded sleeve (813), and a clamping plate (815) is fixedly connected with the bottom of the threaded sleeve (813).

7. A door crane according to claim 6, c h a r a c t e r i s e d in that: The top of the slide rail two (814) is fixedly connected with the top of the inner wall of the fixed bin (811), and the clamping plate (815) is matched with the clamping groove formed in the outer wall of the track (1).

8. A door crane according to claim 1, characterized in that: The clamping assembly (8) comprises a motor two (819), which is arranged in the placing groove of the fixed bin (811), the bottom of the motor two (819) is fixedly connected with the bottom of the inner wall of the placing groove, a belt pulley two (818) is fixedly connected with the output end of the motor two (819), the belt pulley two (818) is drivingly connected with a belt (817), the belt (817) is drivingly connected with a belt pulley one (816), and the belt pulley one (816) is fixedly sleeved on the outer wall of the two-way threaded rod (812).

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