European style double-beam bridge crane

Abstract

The utility model discloses a European style double-beam bridge crane, which relates to the technical field of cranes, and comprises a side frame, a cross beam, a slide rail and an electric hoist assembly, the sliding rail is arranged on the cross beam; the electric hoist assembly is arranged on the cross beam through a sliding rail; wherein the electric hoist assembly comprises a transverse frame, a pulley, a first motor, a first sliding groove, a supporting frame and an electric hoist body, and the pulley is assembled in the transverse frame. The screw rod is driven to rotate through the second motor on the mounting plate, the nut seat and the connecting plate are limited by the first sliding groove and do not rotate along with the screw rod, the nut seat drives the connecting plate to move on the first sliding groove so as to drive the supporting frame to move, and therefore the electric hoist body is driven to slightly adjust and laterally move, the electric hoist body can be closer to a side frame, and the service life of the electric hoist body is prolonged. Cargoes on the side frame edge can also be conveniently hoisted or placed, the space position capable of being hoisted below the electric hoist is fully used, hoisting limitation is reduced, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more specifically to a European double-beam bridge crane. Background Art

[0002] The double-beam European crane is a kind of lifting equipment widely used in factories. Due to its small size and light weight, it is used in various fields. The crane is mainly composed of a trolley and a lifting trolley. The common European cranes are double-beam or single-beam. The general double-beam crane is installed with two guide rails, and then the lifting trolley is framed between the two guide rails. Compared with the single-beam crane, the double-beam crane has better stability and higher strength.

[0003] The cranes in the prior art generally determine the travel distance of the electric hoist only by the guide rails. In order to prevent the electric hoist from colliding with the side frame, the two sides of the slide rails are usually shorter than the crossbeams. Although this method can prevent collisions, it is difficult for the electric hoist to move to a position close to the side frame, resulting in the inability to travel the hoisting distance. This not only wastes the space that can be used for hoisting under the electric hoist, but also makes it difficult to hoist some goods that are closer to the side frame. Summary of the invention

[0004] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained through the structures specifically pointed out in the description and other drawings of the description.

[0005] The purpose of the utility model is to overcome the above-mentioned shortcomings and provide a European double-beam bridge crane.

[0006] To achieve the above purpose, the technical solution of the utility model is: a European double-beam bridge crane, comprising:

[0007] Side frame;

[0008] a crossbeam, which is mounted on the side frames;

[0009] A slide rail, which is arranged on the crossbeam;

[0010] The electric hoist assembly is mounted on the crossbeam through a slide rail; wherein,

[0011] The electric hoist assembly includes a transverse frame, a pulley, a first motor, a first slide groove, a support frame, and an electric hoist body. The pulley is inserted into the transverse frame, the first motor is installed on one side of the transverse frame and is connected to the pulley, the first slide groove is opened on the transverse frame, and a mounting plate is provided in the transverse frame. The mounting plate is connected to the second motor, and a screw is transmission-connected to the second motor. A nut seat is threadedly connected to the screw, and a connecting plate is provided on the nut seat. The connecting plate passes through the first slide groove to extend out of the transverse frame and is connected to the support frame. The electric hoist body is installed on the side of the support frame.

[0012] Preferably, the pulley and the slide rail are clearance-matched.

[0013] Preferably, movable wheels are installed on the lower side of the side frame.

[0014] Preferably, a reducer is connected to the wheel core of the moving wheel, and a third motor is arranged on the reducer.

[0015] Preferably, a second slide groove is provided on a side of the support frame close to the electric hoist body.

[0016] Preferably, a double-rod oil cylinder is installed in the support frame, and the double rods of the double-rod oil cylinder are connected with a support plate. The support plate passes through the second slide groove to the outside of the support frame and is connected to the electric hoist body.

[0017] Preferably, counterweights are installed at both ends of the upper side of the transverse frame.

[0018] The beneficial effects of the utility model are as follows: the utility model drives the screw to rotate through the second motor on the mounting plate, and the nut seat and the connecting plate do not rotate with the screw under the limit of the first slide groove. Instead, the nut seat moves with the connecting plate on the first slide groove, and then moves with the support frame, thereby fine-tuning the lateral shift of the electric hoist body so that it can be closer to the side frame. Cargo on the side frame can also be conveniently lifted or placed, making full use of the space under the electric hoist that can be lifted, reducing the lifting limitations and improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a European double-beam bridge crane of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the electric hoist assembly of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the horizontal frame of the utility model;

[0022] Figure 4 It is a schematic diagram of the internal structure of the support frame of the utility model.

[0023] Figure numerals: side frame -1, cross beam -2, slide rail -3, electric hoist assembly -4, moving wheel -5, reducer -6, third motor -7, cross frame -41, pulley -42, first motor -43, first slide groove -44, support frame -45, electric hoist body -46, mounting plate -47, second motor -48, screw -49, nut seat -410, connecting plate -411, second slide groove -451, double-rod cylinder -452, support plate -453. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] See also Figure 1-4 The utility model provides a European double-beam bridge crane, comprising: a side frame 1, a crossbeam 2, a slide rail 3, a slide rail 3, and an electric hoist assembly 4, wherein the crossbeam 2 is mounted on the side frame 1; the slide rail 3 is arranged on the crossbeam 2; the electric hoist assembly 4 is mounted on the crossbeam 2 through the slide rail 3; wherein the electric hoist assembly 4 comprises a cross frame 41, a pulley 42, a first motor 43, a first slide 44, a support frame 45, and an electric hoist body 46, wherein the pulley 42 is fitted into the cross frame 41, and the first motor 43 is mounted on the cross frame 41 side and is connected to the pulley 42, the first slide groove 44 is opened on the horizontal frame 41, the horizontal frame 41 is equipped with a mounting plate 47, the mounting plate 47 is connected to the second motor 48, the second motor 48 is transmission-connected with a screw rod 49, the screw rod 49 is threadedly connected with a nut seat 410, the nut seat 410 is provided with a connecting plate 411, the connecting plate 411 passes through the first slide groove 44 out of the horizontal frame 41 and is connected to the support frame 45, and the electric hoist body 46 is installed on the side of the support frame 45.

[0027] When in use, the electric hoist assembly 4 is installed on the cross beam 2, and the hook is controlled to move downward by the electric hoist assembly 4 to lift and move the goods. When the electric hoist body 46 needs to move close to the side frame 1 to lift the goods, the pulley 42 is first driven to rotate by the first motor 43, so that the cross frame 41 moves to the end of the slide rail 3, and then the screw 49 is driven to rotate by the second motor 48 on the mounting plate 47. The nut seat 410 and the connecting plate 411 are limited by the first slide groove 44 and do not rotate with the screw 49. Instead, the nut seat 410 moves with the connecting plate 411 on the first slide groove 44, and then moves with the support frame 45, thereby fine-tuning the side shift of the electric hoist body 46, so that it can be closer to the side frame 1, which is more convenient for lifting or placing goods close to the side frame 1.

[0028] According to some embodiments of the present application, optionally, the pulley 42 is loosely matched with the slide rail 3, so that the pulley 42 can rotate to move on the slide rail 3.

[0029] According to some embodiments of the present application, optionally, a moving wheel 5 is installed on the lower side of the side frame 1, a reducer 6 is connected to the wheel core of the moving wheel 5, and a third motor 7 is arranged on the reducer 6. Since the prior art generally requires a person or a forklift to move the crane, which is troublesome, inconvenient, and has a high risk factor, the present application operates the third motor 7 when the crane needs to move, and the moving wheel 5 can automatically move under the transmission of the reducer 6, thereby controlling the automatic movement of the crane, which has the effect of being easier to operate and safer.

[0030] According to some embodiments of the present application, optionally, a second chute 451 is provided on one side of the support frame 45 close to the electric hoist body 46, a double-rod oil cylinder 452 is installed in the support frame 45, and a support plate 453 is connected to the double rods of the double-rod oil cylinder 452, and the support plate 453 passes through the second chute 451 to pass out of the support frame 45 and is connected to the electric hoist body 46. Since the electric hoist body 46 of the prior art is fixed to the side of the support frame 45, and the hook of the electric hoist body 46 is vertically lowered, it is often difficult to align the hook with the goods below and hang them, and it is often necessary for personnel to swing the hook to hang the goods. Therefore, the present application extends and retracts the rods at the corresponding ends of the double-rod oil cylinder 452, and under the action of the second chute 451, the double-rod oil cylinder 452 drives the electric hoist body 46 to move forward and backward, and the hook can be moved to dock with the goods, which has the effects of more intelligent operation, more labor saving, and higher efficiency.

[0031] According to some embodiments of the present application, optionally, counterweights are installed at both ends of the upper side of the transverse frame 41. This has the effect of balancing the weight on both sides of the transverse frame 41 and effectively preventing the support frame 45 from moving and causing the transverse frame 41 to shake.

[0032] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0033] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the utility model. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0034] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the utility model. However, those skilled in the relevant art will understand that the utility model can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A European double-beam bridge crane, characterized in that: include: Side frame (1); A crossbeam (2) mounted on the side frame (1); A slide rail (3) arranged on the crossbeam (2); An electric hoist assembly (4) is mounted on a crossbeam (2) via a slide rail (3); wherein: The electric hoist assembly (4) comprises a transverse frame (41), a pulley (42), a first motor (43), a first chute (44), a support frame (45), and an electric hoist body (46). The pulley (42) is arranged in the transverse frame (41). The first motor (43) is mounted on one side of the transverse frame (41) and connected to the pulley (42). The first chute (44) is arranged on the transverse frame (41). A mounting plate (47) is arranged in the transverse frame (41). A second motor (48) is connected to the mounting plate (47). A screw rod (49) is drivingly connected to the second motor (48). A nut seat (410) is threadedly connected to the screw rod (49). A connecting plate (411) is arranged on the nut seat (410). The connecting plate (411) passes through the first chute (44) and passes out of the transverse frame (41) and is connected to the support frame (45). The electric hoist body (46) is mounted on the side of the support frame (45).

2. A European double-beam bridge crane according to claim 1, characterized in that: The pulley (42) and the slide rail (3) are clearance-matched.

3. A European double-beam bridge crane according to claim 1, characterized in that: A moving wheel (5) is installed on the lower side of the side frame (1).

4. A European double-beam bridge crane according to claim 3, characterized in that: A reducer (6) is connected to the wheel core of the moving wheel (5), and a third motor (7) is arranged on the reducer (6).

5. A European double-beam bridge crane according to claim 1, characterized in that: A second sliding groove (451) is provided on one side of the support frame (45) close to the electric hoist body (46).

6. A European double-beam bridge crane according to claim 5, characterized in that: A double-rod oil cylinder (452) is installed in the support frame (45), and both rods of the double-rod oil cylinder (452) are connected to a support plate (453). The support plate (453) passes through the second slide groove (451) out of the support frame (45) and is connected to the electric hoist body (46).

7. A European double-beam bridge crane according to claim 1, characterized in that: Counterweights are installed at both ends of the upper side of the transverse frame (41).

Images