European style double-beam bridge crane

Abstract

A European style double-beam bridge crane effectively solves the problem that the efficiency of manual lubricating oil smearing is low, and comprises double main beams, a crane carriage, a winch, a steel wire rope and a lifting appliance, a lubricating device corresponding to the steel wire rope is installed at the lower end of the crane carriage and comprises a rack, and the rack is rotationally connected with a two-way screw. A first supporting device and a second supporting device are slidably connected to the two-way screw and are of the same structure, the first supporting device comprises a first nut, a first support is fixed to the front end of the first nut, a first semicircular ring is fixed to the front end of the first support, and a plurality of first nozzles are evenly arranged on the first semicircular ring. A second support is installed on the first support, a second semicircular ring is fixed to the front end of the second support, a plurality of second spray heads are evenly arranged on the second semicircular ring, and the first spray heads and the second spray heads face the steel wire rope and are connected with the oil pump through pipelines.

Description

Technical Field

[0001] The utility model belongs to the technical field of cranes, and particularly relates to a European-style double-girder bridge crane. Background Art

[0002] The concept of European-style cranes has emerged in the industry in recent years, aiming to distinguish from the so-called domestic, Soviet-style, and traditional cranes in the past. It mainly includes: bridge cranes, gantry cranes, jib cranes, flexible beam cranes, explosion-proof cranes and other industrial cranes. European-style cranes are used in various fields due to their small size and light weight. When the existing European-style double-girder bridge crane is in use, the friction of the steel wire rope will increase after long-term use, and manual lubrication needs to be carried out, resulting in low work efficiency and potential safety hazards. Content of the Utility Model

[0003] In view of the above situation, to overcome the defects of the prior art, the purpose of the utility model is to provide a European-style double-girder bridge crane, which effectively solves the problem of low efficiency of manual lubrication.

[0004] The technical solution for solving the technical problem is: it includes double main girders, a lifting trolley, a winch, a steel wire rope and a lifting appliance. A lubricating device corresponding to the steel wire rope is installed at the lower end of the lifting trolley. The lubricating device includes a frame, the frame is fixedly connected with the lifting trolley, a bidirectional screw is rotatably connected to the frame, a first supporting device and a second supporting device are slidably connected to the bidirectional screw. The first supporting device and the second supporting device have the same structure. The first supporting device includes a first nut, a first bracket is fixed at the front end of the first nut, a first semi-circular ring is fixed at the front end of the first bracket, a plurality of first nozzles are evenly arranged on the first semi-circular ring, a second bracket is installed on the first bracket, a second semi-circular ring is fixed at the front end of the second bracket, the first semi-circular ring and the second semi-circular ring correspondingly form a ring, a plurality of second nozzles are evenly arranged on the second semi-circular ring, the steel wire rope is located between the first semi-circular ring and the second semi-circular ring, the first nozzles and the second nozzles face the steel wire rope, an oil pump is installed on the first bracket, and the first nozzles and the second nozzles are respectively connected to the oil pump through pipelines.

[0005] Preferably, a motor is installed on the frame, and the motor is coaxially and fixedly connected with the bidirectional screw through a reducer.

[0006] Preferably, the bidirectional screw includes a first screw and a second screw, the thread directions of the first screw and the second screw are opposite, the first screw is threadedly connected with the first nut, and the second screw controls the left and right sliding of the second supporting device.

[0007] Preferably, a chute is fixed on the frame, and a limiting block inserted into the chute is fixed on the first nut.

[0008] Preferably, lubricating oil is stored in the oil pump.

[0009] Preferably, a hollow cavity is provided inside both the first semi-circular ring and the second semi-circular ring. Connectors are installed outside both the first semi-circular ring and the second semi-circular ring. One end of the connector communicates with the hollow cavity, and the other end of the connector communicates with a pipeline. The first spray head and the second spray head communicate with the corresponding hollow cavities respectively.

[0010] The utility model has the following advantages compared with traditional equipment: high degree of automation, simple operation, adopting a bidirectional screw structure, cleverly controlling the distance between the first support device and the second support device, suitable for steel wires with different distances. The first semi-circular ring and the second semi-circular ring are installed and aligned to form a ring. The steel wire moves up and down inside the ring. The first spray head and the spray heads are distributed on the circumference of the steel wire, and can lubricate the steel wire circumferentially. As the steel wire rises and falls, the lubrication area is wide, which has a good protective effect on the steel wire, high work efficiency and good safety. Description of the Drawings

[0011] Figure 1 is a schematic diagram of the front view of the utility model;

[0012] Figure 2 is a schematic diagram of the three-dimensional structure of the lubrication device in the utility model;

[0013] Figure 3 is a schematic diagram of the three-dimensional structure of the first support device in the utility model.

[0014] Reference numerals: 1, double main beam; 2, hoisting trolley; 3, steel wire; 4, lubrication device; 5, frame; 6, first nut; 7, first bracket; 8, first semi-circular ring; 9, first spray head; 10, second bracket; 11, second semi-circular ring; 12, second spray head; 13, oil pump; 14, motor; 15, first screw; 16, second screw; 17, chute; 18, limit block; 19, connector. Detailed Embodiments

[0015] The following further details the specific embodiments of the utility model with reference to the drawings.

[0016] By Figures 1 to 3Provided is a European double-girder bridge crane, which includes double main girders 1, a hoisting trolley 2, a winch, a steel wire rope 3 and a spreader. A lubricating device 4 corresponding to the steel wire rope 3 is installed at the lower end of the hoisting trolley 2. The lubricating device 4 includes a frame 5, and the frame 5 is fixedly connected to the hoisting trolley 2. A bidirectional screw is rotatably connected to the frame 5. A first support device and a second support device are slidably connected to the bidirectional screw. The first support device and the second support device have the same structure. The first support device includes a first nut 6. A first bracket 7 is fixed to the front end of the first nut 6. A first semi-circular ring 8 is fixed to the front end of the first bracket 7. A plurality of first nozzles 9 are uniformly arranged on the first semi-circular ring 8. A second bracket 10 is installed on the first bracket 7. A second semi-circular ring 11 is fixed to the front end of the second bracket 10. The first semi-circular ring 8 and the second semi-circular ring 11 correspondingly form a ring. A plurality of second nozzles 12 are uniformly arranged on the second semi-circular ring 11. The steel wire rope 3 is located between the first semi-circular ring 8 and the second semi-circular ring 11. The first nozzles 9 and the second nozzles 12 face the steel wire rope 3. An oil pump 13 is installed on the first bracket 7. The first nozzles 9 and the second nozzles 12 are respectively connected to the oil pump 13 through pipelines.

[0017] In order to ensure a suitable rotation speed of the bidirectional screw, a motor 14 is installed on the frame 5, and the motor 14 is coaxially and fixedly connected to the bidirectional screw through a reducer.

[0018] The bidirectional screw includes a first screw 15 and a second screw 16. The thread directions of the first screw 15 and the second screw 16 are opposite. The first screw 15 is threadedly connected to the first nut 6, and the second screw 16 controls the left and right sliding of the second support device.

[0019] In order to ensure the stability of the left and right sliding of the first nut 6, a chute 17 is fixed on the frame 5, and a limiting block 18 inserted into the chute 17 is fixed on the first nut 6.

[0020] The oil pump 13 stores lubricating oil.

[0021] In order to ensure that the first nozzles 9 and the second nozzles 12 spray lubricating oil, hollow cavities are provided in both the first semi-circular ring 8 and the second semi-circular ring 11. Connectors 19 are installed outside both the first semi-circular ring 8 and the second semi-circular ring 11. One end of the connector 19 is communicated with the hollow cavity, the other end of the connector 19 is communicated with the pipeline, and the first nozzles 9 and the second nozzles 12 are respectively communicated with the corresponding hollow cavities.

[0022] When the utility model is in use, first install the frame 5 at the lower end of the hoisting trolley 2 through bolts, then align the second bracket 10 with the first bracket 7. The steel wire rope 3 is located between the first semi-circular ring 8 and the second semi-circular ring 11. Then fix the first bracket 7 and the second bracket 10 together through bolts. The installation is convenient. The first semi-circular ring 8 and the second semi-circular ring 11 correspondingly form a ring, and the steel wire rope 3 passes through the ring up and down. Start the motor 14, and the motor 14 drives the coaxial rotation of the bidirectional screw rod. The first screw rod 15 and the second screw rod 16 rotate coaxially. The thread rotation directions of the first screw rod 15 and the second screw rod 16 are opposite. Therefore, the bidirectional screw rod drives the first support device and the second support device to move closer or farther synchronously, and the distance between the first support device and the second support device can be adjusted to meet the requirements of different distances of the steel wire rope 3. The adjustment is convenient. When the steel wire rope 3 needs to be lubricated, turn on the oil pump 13. The oil pump 13 pressurizes the lubricating oil through the pipeline to the joint 19 and the hollow cavity, and then sprays it out through the first nozzle 9 and the second nozzle 12. The first nozzle 9 and the second nozzle 12 are evenly distributed on the circumference of the steel wire rope 3, and the first nozzle 9 and the second nozzle 12 face the steel wire rope 3. Furthermore, the lubricating oil can be evenly sprayed on the surface of the steel wire rope 3, with uniform coverage. The winch controls the lifting of the steel wire rope 3. During the lifting process of the steel wire rope 3, the first nozzle 9 and the second nozzle 12 can continuously lubricate the steel wire rope 3. The operation range is wide, the operation is simple, and the degree of automation is high.

[0023] This embodiment does not impose any formal restrictions on the shape, material, structure, etc. of the present utility model. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the technical solution of the present utility model.

Claims

1. A European double-beam bridge crane, comprising a double main beam (1), a lifting trolley (2), a winch, a steel wire rope (3) and a sling, characterized in that: A lubricating device (4) corresponding to the steel wire rope (3) is installed at the lower end of the lifting trolley (2). The lubricating device (4) includes a frame (5). The frame (5) is fixedly connected to the lifting trolley (2). The frame (5) is rotatably connected to a bidirectional screw. A first supporting device and a second supporting device are slidably connected to the bidirectional screw. The first supporting device and the second supporting device have the same structure. The first supporting device includes a first nut (6). A first bracket (7) is fixed to the front end of the first nut (6). A first semicircular ring (8) is fixed to the front end of the first bracket (7). A plurality of first nozzles (9) are evenly arranged on the first semicircular ring (8). ), a second bracket (10) is mounted on the first bracket (7), a second semicircular ring (11) is fixed to the front end of the second bracket (10), the first semicircular ring (8) and the second semicircular ring (11) form a circular ring, a plurality of second nozzles (12) are evenly arranged on the second semicircular ring (11), the steel wire rope (3) is located between the first semicircular ring (8) and the second semicircular ring (11), the first nozzle (9) and the second nozzle (12) face the steel wire rope (3), an oil pump (13) is mounted on the first bracket (7), and the first nozzle (9) and the second nozzle (12) are respectively connected to the oil pump (13) via pipelines.

2. A European double-beam bridge crane according to claim 1, characterized in that: A motor (14) is mounted on the frame (5), and the motor (14) is coaxially fixedly connected to the bidirectional screw via a reducer.

3. A European double-beam bridge crane according to claim 1, characterized in that: The bidirectional screw comprises a first screw (15) and a second screw (16), wherein the threads of the first screw (15) and the second screw (16) are in opposite directions, the first screw (15) is threadedly connected to the first nut (6), and the second screw (16) controls the second support device to slide left and right.

4. A European double-beam bridge crane according to claim 1, characterized in that: A slide groove (17) is fixed on the frame (5), and a limit block (18) inserted into the slide groove (17) is fixed on the first nut (6).

5. A European double-beam bridge crane according to claim 1, characterized in that: Lubricating oil is stored in the oil pump (13).

6. A European double-beam bridge crane according to claim 1, characterized in that: A hollow cavity is provided inside the first semicircular ring (8) and inside the second semicircular ring (11), and a joint (19) is installed outside the first semicircular ring (8) and outside the second semicircular ring (11), one end of the joint (19) is connected to the hollow cavity, and the other end of the joint (19) is connected to the pipeline, and the first nozzle (9) and the second nozzle (12) are respectively connected to the corresponding hollow cavity.

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