Double-beam bridge crane

Abstract

The utility model discloses a double-beam bridge crane. The double-beam bridge crane comprises a crane boom, a hoisting frame is arranged at the lower end of the hoisting frame, a main hook is arranged at the lower end of the hoisting frame, a balance mechanism is arranged in the middle of the hoisting frame and comprises supports, balance ropes, balance arms and pulleys, the supports are evenly and fixedly connected to the upper end of the hoisting frame, and the balance arms are rotationally connected to the ends, away from the center of the hoisting frame, of the supports; the ends, away from the center of the hoisting frame, of the balance arms are rotationally connected with pulleys, the upper ends of the supports are fixedly connected with balance ropes, the lower ends of the balance ropes are fixedly connected with balance hooks, the middles of the balance ropes and the transversely adjacent pulleys are installed in a matched mode, and a control switch set is arranged on the left side of the hoisting frame. Balance force in four directions can be added to materials in the lifting process, lifting and descending of the materials are more stable, and the safety of material lifting is improved.

Description

Technical Field

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

[0002] Double-beam bridge crane, also known as overhead crane, is the most widely used type of lifting machinery. It is mainly composed of a bridge (commonly known as a trolley), a trolley and a metal structure. Due to its unique design and advantages, double-beam bridge cranes are widely used in various scenarios, including the following aspects: industrial manufacturing, construction sites, logistics and transportation, port terminals and other scenarios; some existing double-beam bridge cranes, no. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a double-beam bridge crane, which can increase the balancing force in four directions for the materials being hoisted, make the hoisting and lowering of the materials more stable, provide the safety of material lifting, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-beam bridge crane, comprising a lifting frame;

[0005] Lifting frame: A lifting frame is arranged at its lower end, a main hook is arranged at the lower end of the lifting frame, a balancing mechanism is arranged in the middle of the lifting frame, and the balancing mechanism includes a support, a balancing rope, a balancing arm and a pulley. The support is evenly and fixedly connected to the upper end of the lifting frame, the end of the support away from the center of the lifting frame is rotatably connected to the balancing arm, the end of the balancing arm away from the center of the lifting frame is rotatably connected to the pulley, the upper end of the support is fixedly connected with a balancing rope, the lower end of the balancing rope is fixedly connected with a balancing hook, the middle part of the balancing rope is installed in cooperation with the laterally adjacent pulleys, which can increase the balancing force in four directions for the material being lifted, the lifting and lowering of the material is smoother, and the safety of material lifting is provided.

[0006] Furthermore, a control switch group is provided on the left side of the lifting frame, and an input end of the control switch group is electrically connected to an external power supply to control various electrical appliances.

[0007] Furthermore, the interior of the lifting frame is provided with symmetrically distributed slide rails, and a sliding frame is provided between the slide rails. The left and right ends of the sliding frame are rotatably connected with evenly distributed auxiliary wheels, and the auxiliary wheels are slidably connected to the laterally adjacent slide rails. A winch is provided at the lower end of the sliding frame, and the lower end of the winch cable is fixedly connected to the upper end of the lifting frame, and the upper end of the lifting frame is fixedly connected with evenly distributed auxiliary cables, and the auxiliary cables are fixedly connected to the lower end of the winch cable. The input end of the winch is electrically connected to the output end of the control switch group to realize the lifting of materials.

[0008] Furthermore, the balancing mechanism also includes a slide groove, a slide column, a sliding seat, an adaptable seat and a shock absorber. The slide grooves are evenly arranged in the middle of the lifting frame, the inside of the slide grooves are fixedly connected with the slide columns, the middle of the slide columns are slidably connected with the sliding seats, the ends of the sliding seats away from the center of the lifting frame are rotatably connected with the adaptable seats, the ends of the adaptable seats away from the center of the lifting frame are fixedly connected with the shock absorbers, and the upper ends of the shock absorbers are rotatably connected to the middle of the vertically adjacent balancing arms to provide support for the balancing arms.

[0009] Furthermore, the balancing mechanism also includes springs, which are symmetrically fixedly connected to the sliding seat and the laterally adjacent sliding grooves, and are movably sleeved on the outer surfaces of the laterally adjacent sliding columns to provide balancing force for the balancing arm.

[0010] Furthermore, the front and rear ends of the lifting frame are fixedly connected to a cross beam, the left and right ends of the cross beam are rotatably connected to moving wheels, and a second motor is provided at the left end of the cross beam relative to the inner surface, and the end of the output shaft of the second motor away from the center of the lifting frame is fixedly connected to the longitudinally adjacent moving wheel, and the input end of the second motor is electrically connected to the output end of the control switch group to realize the lateral movement of the crane.

[0011] Furthermore, the lifting frame is internally rotatably connected with a screw rod, the middle part of the screw rod is threadedly connected to the upper end of the sliding frame, the rear end of the screw rod is fixedly connected to a driven gear, a motor 1 is provided at the upper end of the rear cross beam, the front end of the output shaft of the motor 1 is fixedly connected to a driving gear, the driving gear is meshingly connected to the driven gear, the input end of the motor 1 is electrically connected to the output end of the control switch group, so as to realize the longitudinal movement of the winch.

[0012] Compared with the prior art, the beneficial effects of the utility model are: the double-beam bridge crane has the following advantages:

[0013] The connecting rod and pulley are coordinated to assist the movement of the balancing rope, so that the balancing rope can better adapt to the lifting needs of the materials. At the same time, the shock absorbers provide support with the corresponding connecting rods to form a triangular mechanism to ensure the stability of the balancing mechanism itself. The force applied to the balancing mechanism by the balancing rope corresponds to the spring force, which further improves the stability of the balancing mechanism itself and adds balancing force in four directions for the materials being lifted. The four balancing forces assist the lifting and lowering of the main hook, which greatly avoids the instability of the material during the lifting process caused by a single rope due to too single force point, thereby providing safety for material lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the cross-sectional structure inside the utility model;

[0016] Figure 3It is a schematic diagram of the enlarged structure of point A of the utility model.

[0017] In the figure: 1 lifting frame, 2 cross beam, 3 lifting frame, 4 balancing mechanism, 401 slide slot, 402 spring, 403 slide column, 404 sliding seat, 405 adapting seat, 406 shock absorber, 407 support, 408 balancing rope, 409 balancing arm, 410 pulley, 5 sliding frame, 6 slide rail, 7 screw, 8 motor 1, 9 moving wheel, 10 motor 2, 11 winch, 12 auxiliary rope, 13 main hook, 14 control switch group, 15 auxiliary wheel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in 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 in 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.

[0019] See also Figure 1-3 ,This embodiment provides a technical solution: a double-beam bridge crane, comprising a crane frame 1;

[0020] Lifting frame 1: A lifting frame 3 is arranged at its lower end, a main hook 13 is arranged at the lower end of the lifting frame 3, a balancing mechanism 4 is arranged in the middle of the lifting frame 3, and the balancing mechanism 4 includes a support 407, a balancing rope 408, a balancing arm 409 and a pulley 410. The support 407 is evenly fixedly connected to the upper end of the lifting frame 3, and the end of the support 407 away from the center of the lifting frame 3 is rotatably connected to the balancing arm 409, and the end of the balancing arm 409 away from the center of the lifting frame 3 is rotatably connected to the pulley 410, the upper end of the support 407 is fixedly connected to the balancing rope 408, the lower end of the balancing rope 408 is fixedly connected to the balancing hook, and the middle of the balancing rope 408 is fixedly connected to the balancing rope 408. The balancing mechanism 4 further comprises a slide groove 401, a slide column 403, a sliding seat 404, an adapting seat 405 and a shock absorber 406. The slide groove 401 is evenly arranged in the middle of the hanging frame 3. The inside of the slide groove 401 is fixedly connected with the slide column 403. The middle of the slide column 403 is slidably connected with the sliding seat 404. The end of the sliding seat 404 away from the center of the hanging frame 3 is rotatably connected with the adapting seat 405. The end of the adapting seat 405 away from the center of the hanging frame 3 is fixedly connected with the shock absorber 406. The upper end of the shock absorber 406 is rotatably connected with the middle of the vertically adjacent balancing arm 409. The balancing mechanism 4 also The main hook 13 and the balance hook are connected to the material. After the connection is stable, the winch 11 is reversely operated by controlling the switch group 14 to realize the lifting of the material. The gravity of the material is transmitted to the corresponding balance cable 408 through the balance hook. The middle part of the balance cable 408 generates a force on the pulley 410 adjacent to the horizontal side, so that the corresponding balance arm 409 rotates downward. The balance arm 409 rotates downward to make the shock absorber 406 adjacent to the horizontal side. The corresponding sliding seat 404 is pushed downward. Under the guidance of the laterally adjacent sliding column 403, the sliding seat 404 moves downward inside the corresponding sliding groove 401. At the same time, the sliding seat 404 moves downward so that the spring 402 on the upper side is elastically stretched. The sliding seat 404 moves downward so that the spring 402 on the lower side is elastically compressed. The elastic force of the spring 404 is transmitted to the laterally adjacent shock absorber 406 through the vertically adjacent sliding seat 404. The shock absorber 406 transmits the elastic force of the spring 402 to the balancing arm 409, and the middle part of the balancing cable 408 generates a force balance on the laterally adjacent pulley 410, thereby providing a balancing force in four directions for the lifted material.

[0021] Wherein: a control switch group 14 is arranged on the left side of the lifting frame 1, and an input end of the control switch group 14 is electrically connected to an external power supply;

[0022] Wherein: the lifting frame 1 is provided with symmetrically distributed slide rails 6 inside, a sliding frame 5 is provided between the slide rails 6, the left and right ends of the sliding frame 5 are rotatably connected with evenly distributed auxiliary wheels 15, the auxiliary wheels 15 are slidably connected with the laterally adjacent slide rails 6, a winch 11 is provided at the lower end of the sliding frame 5, the lower end of the rope of the winch 11 is fixedly connected to the upper end of the lifting frame 3, the upper end of the lifting frame 3 is fixedly connected with evenly distributed auxiliary ropes 12, the auxiliary ropes 12 are fixedly connected to the lower end of the rope of the winch 11, and the input end of the winch 11 is electrically connected to the output end of the control switch group 14;

[0023] Wherein: the front and rear ends of the lifting frame 1 are fixedly connected with the crossbeam 2, the left and right ends of the crossbeam 2 are rotatably connected with the moving wheels 9, the left end of the crossbeam 2 relative to the inner surface is provided with a second motor 10, the end of the output shaft of the second motor 10 away from the center of the lifting frame 1 is fixedly connected with the longitudinally adjacent moving wheel 9, the input end of the second motor 10 is electrically connected with the output end of the control switch group 14, and the second motor 10 is running, and the output shaft of the second motor 10 rotates to drive the longitudinally adjacent moving wheels 9 to rotate, thereby making the crane slide laterally on the upper end of the external guide rail;

[0024] Among them: the internal rotation of the lifting frame 1 is connected with a screw rod 7, the middle part of the screw rod 7 is threadedly connected to the upper end of the sliding frame 5, the rear end of the screw rod 7 is fixedly connected with a driven gear, and the upper end of the rear crossbeam 2 is provided with a motor 8, and the front end of the output shaft of the motor 8 is fixedly connected with a driving gear, and the driving gear is meshed and connected with the driven gear. The input end of the motor 8 is electrically connected to the output end of the control switch group 14. When the motor 8 is running, the output shaft of the motor 8 rotates to drive the driving gear to rotate, and then drives the driven gear to rotate. The rotation of the driven gear drives the screw rod 7 to rotate, so that the sliding frame 5 moves longitudinally, and then drives the winch 11 to move longitudinally, and finally drives the material to move longitudinally. At the same time, the auxiliary wheels 15 slide inside the corresponding slide rails 6 to provide limiting and guiding effects for the movement of the sliding frame 5.

[0025] The working principle of a double-beam bridge crane provided by the utility model is as follows: when working, personnel stably install the lifting frame 1, the crossbeam 2 and other mechanisms to the upper end of the external guide rail. After the installation is stable, the personnel realize the operation of the winch 11 by controlling the switch group 14, and the winch 11 realizes the release of the rope, thereby moving the lifting frame 3 downward. When the lifting frame 3 descends to the required position, the personnel connect the main hook 13 and the balance hook with the material. After the connection is stable, the personnel realize the reverse operation of the winch 11 by controlling the switch group 14 to realize the lifting of the material, and the gravity of the material is transmitted through the balance hook. The middle part of the balancing rope 408 exerts a force on the pulley 410 adjacent to the horizontal side, so that the corresponding balancing arm 409 rotates downward. The downward rotation of the balancing arm 409 causes the shock absorber 406 adjacent to the horizontal side to push the corresponding sliding seat 404 downward. The sliding seat 404 moves downward in the corresponding sliding groove 401 under the guidance of the sliding column 403 adjacent to the horizontal side. At the same time, the downward movement of the sliding seat 404 causes the spring 402 on the upper side to be elastically stretched, and the downward movement of the sliding seat 404 causes the spring 402 on the lower side to be elastically compressed. The elastic force of the spring 404 is transmitted through the vertical The spring 402 is transmitted to the adjacent sliding seat 404 to the laterally adjacent shock absorber 406. The shock absorber 406 transmits the elastic force of the spring 402 to the balance arm 409, and the middle part of the balance rope 408 produces a force balance on the laterally adjacent pulley 410, providing a balancing force in four directions for the lifted material. When the material rises to the required position, the personnel turns off the winch 11 through the control switch group 14 and realizes the operation of the motor 2 10. The rotation of the output shaft of the motor 2 10 drives the rotation of the longitudinally adjacent moving wheel 9, thereby causing the crane to slide laterally on the upper end of the external guide rail. When the crane slides to the required position At this time, the personnel turns off the motor 2 10 and enables the motor 1 8 to operate by controlling the switch group 14. The output shaft of the motor 1 8 rotates to drive the driving gear to rotate, and then drives the driven gear to rotate. The driven gear rotates to drive the screw 7 to rotate, so that the sliding frame 5 moves longitudinally, and then drives the winch 11 to move longitudinally, and finally drives the material to move longitudinally. At the same time, the auxiliary wheels 15 slide inside the corresponding slide rails 6 to provide limiting and guiding effects for the movement of the sliding frame 5. When the material reaches the required longitudinal position, the personnel turns off the motor 8 and enables the winch 11 to operate by controlling the switch group 14 to release the material.

[0026] It is worth noting that the control switch group 14 disclosed in the above embodiment is provided with control buttons corresponding to the motor 1 8 , the motor 2 10 and the winch 11 one by one and controlling the switches thereof.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A double-beam bridge crane, characterized in that: comprising a lifting frame (1); A lifting frame (1): a lifting frame (3) is arranged at its lower end, a main hook (13) is arranged at the lower end of the lifting frame (3), a balancing mechanism (4) is arranged in the middle of the lifting frame (3), and the balancing mechanism (4) comprises a support (407), a balancing rope (408), a balancing arm (409) and a pulley (410), wherein the support (407) is evenly and fixedly connected to the upper end of the lifting frame (3), one end of the support (407) away from the center of the lifting frame (3) is rotatably connected to the balancing arm (409), one end of the balancing arm (409) away from the center of the lifting frame (3) is rotatably connected to the pulley (410), the upper end of the support (407) is fixedly connected to the balancing rope (408), the lower end of the balancing rope (408) is fixedly connected to the balancing hook, and the middle part of the balancing rope (408) is installed in coordination with the pulley (410) adjacent to the lateral side.

2. A double-beam bridge crane according to claim 1, characterized in that: A control switch group (14) is provided on the left side of the lifting frame (1), and an input end of the control switch group (14) is electrically connected to an external power supply.

3. A double-beam bridge crane according to claim 2, characterized in that: The lifting frame (1) is provided with symmetrically distributed slide rails (6) inside, a sliding frame (5) is provided between the slide rails (6), the left and right ends of the sliding frame (5) are rotatably connected with evenly distributed auxiliary wheels (15), the auxiliary wheels (15) are slidably connected with the laterally adjacent slide rails (6), a winch (11) is provided at the lower end of the sliding frame (5), the lower end of the rope of the winch (11) is fixedly connected to the upper end of the lifting frame (3), the upper end of the lifting frame (3) is fixedly connected with evenly distributed auxiliary ropes (12), the auxiliary ropes (12) are fixedly connected to the lower end of the rope of the winch (11), and the input end of the winch (11) is electrically connected to the output end of the control switch group (14).

4. A double-beam bridge crane according to claim 1, characterized in that: The balancing mechanism (4) further comprises a slide groove (401), a slide column (403), a sliding seat (404), an adapting seat (405) and a shock absorber (406); the slide groove (401) is evenly arranged in the middle of the hanging frame (3); the interior of the slide groove (401) is fixedly connected with the slide column (403); the middle of the slide column (403) is slidably connected with the slide seat (404); one end of the slide seat (404) away from the center of the hanging frame (3) is rotatably connected with the adapting seat (405); one end of the adapting seat (405) away from the center of the hanging frame (3) is fixedly connected with the shock absorber (406); and the upper end of the shock absorber (406) is rotatably connected to the middle of a vertically adjacent balancing arm (409).

5. A double-beam bridge crane according to claim 4, characterized in that: The balancing mechanism (4) further comprises a spring (402), wherein the springs (402) are symmetrically fixedly connected to the sliding seat (404) and the laterally adjacent sliding grooves (401), and the springs (402) are movably sleeved on the outer surface of the laterally adjacent sliding columns (403).

6. A double-beam bridge crane according to claim 2, characterized in that: The front and rear ends of the lifting frame (1) are fixedly connected to a crossbeam (2), the left and right ends of the crossbeam (2) are rotatably connected to moving wheels (9), a second motor (10) is provided at the left end of the crossbeam (2) relative to the inner surface, the end of the output shaft of the second motor (10) away from the center of the lifting frame (1) is fixedly connected to the longitudinally adjacent moving wheel (9), and the input end of the second motor (10) is electrically connected to the output end of the control switch group (14).

7. A double-beam bridge crane according to claim 6, characterized in that: The lifting frame (1) is internally rotatably connected with a screw rod (7), the middle part of the screw rod (7) is threadedly connected to the upper end of the sliding frame (5), the rear end of the screw rod (7) is fixedly connected to a driven gear, the upper end of the rear cross beam (2) is provided with a motor 1 (8), the front end of the output shaft of the motor 1 (8) is fixedly connected to a driving gear, the driving gear is meshedly connected with the driven gear, and the input end of the motor 1 (8) is electrically connected to the output end of the control switch group (14).

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