Suspension type single-beam crane

Abstract

The utility model discloses a suspension type single-beam crane which comprises a supporting seat, a hoisting mechanism is arranged at the upper end of the supporting seat and comprises a first motor fixedly installed at the upper end of the supporting seat, and a frame is fixedly arranged at the position, close to the front side and the rear side of the first motor, of the upper end of the supporting seat. A fixing plate is fixedly installed at the position, close to the upper side of the first motor, of the inner side of the frame, a screw is fixedly connected to the upper side of the first motor, a lifting block is movably arranged on the outer side of the screw, and an opening is formed in the position, corresponding to the lifting block, of the front side of the frame. According to the suspension type single-beam crane disclosed by the utility model, the second motor is started to drive the single-beam body to rotate, so that the suspension type single-beam crane has a wider angle adjusting range compared with an existing bidirectional moving assembly, and angle conversion can be carried out while goods are driven to translate, so that more accurate positioning can be carried out; therefore, the efficiency and the quality of hoisting work are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and particularly relates to a suspended single-girder crane. Background Technique

[0002] A single-girder suspended crane is a crane that suspends and fixes a cross beam on a building walking track (I-beam). The installation location and span of the walking track can be freely set, which is most suitable for production lines, etc.

[0003] The utility model with the patent number CN202221907840.2 relates to the technical field of cranes and discloses a single-girder crane, including a cross frame. A single girder is arranged on the outer surface of the cross frame, a translation sliding plate is arranged on the outer surface of the single girder, an electric hoist main body is arranged on the outer surface of the translation sliding plate, and a lifting pulley is arranged on the outer surface of the electric hoist main body. The utility model has the following advantages and effects: when the electric hoist main body drives the lifting pulley to lift and lower, a first fixed wheel and a second fixed wheel are additionally arranged on the outer surface of the lifting pulley, and a lifting ring is fixed through a fixed shaft and an outer support ring. A fixed support for the chain is added at the top, so that the balance effect of the chain during the lifting and lowering process is better. The hook is connected through a bottom ring and a connecting plate, and the balance force between the hooks is increased through the connecting plate, so that the balance feeling of the chain and the hook is improved during the lifting and rising process, the violent shaking degree of the goods during the lifting process is reduced, and the goods are safer and more stable during the moving process.

[0004] However, this utility model still has deficiencies. For example: when using this device, the cross frame, single girder, and translation sliding plate are usually placed on the walking track to enable longitudinal and transverse two-way driving and use. This makes it inconvenient to drive the hoisted goods for fine movement. When making fine distance adjustment, the operation is relatively troublesome and it is easy to cause inaccurate positioning of the hoisted goods, resulting in poor hoisting efficiency and quality. In addition, when the upper lifting component is damaged, it is not convenient to repair, and it requires maintenance personnel to climb to the upper side, so the safety is relatively poor. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a suspended single-girder crane, which can effectively solve the problems in the background technique.

[0006] To achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0007] A suspended single-girder crane, comprising a support base, wherein a hoisting mechanism is arranged at the upper end of the support base. The hoisting mechanism includes a first motor fixedly installed at the upper end of the support base. At positions on the front and rear sides of the first motor near the upper end of the support base, a frame is fixedly arranged. Inside the frame, near the upper side of the first motor, a fixed plate is fixedly installed. A screw rod is fixedly connected to the upper side of the first motor. A lifting block is movably arranged on the outer side of the screw rod. An opening is formed at the front side of the frame corresponding to the position of the lifting block, and a limiting groove is formed at the rear side of the frame corresponding to the position of the lifting block. At positions near the upper and lower sides of the front end of the lifting block, fixed blocks are fixedly connected. At the same-direction ends of the two groups of fixed blocks, movable shaft frames are fixedly arranged. A large gear is fixedly sleeved on the outer side of the upper group of the two groups of movable shaft frames. A circular shaft is movably arranged inside the two groups of movable shaft frames. At a position near the upper side of the front side of the circular shaft, a mounting frame is fixedly installed. A second motor is fixedly installed at the upper end of the mounting frame. A small gear is fixedly connected to the lower side of the second motor. A connecting frame is fixedly welded to the front side of the circular shaft. A single-girder body is fixedly arranged at the lower side of the connecting frame. A hoisting component is movably arranged on the outer side of the single-girder body.

[0008] Preferably, the rotating shaft of the first motor penetrates through the inside of the fixed plate near the center and is connected to the screw rod. The screw rod is movably connected to the frame, and the lifting block is threadedly connected to the screw rod.

[0009] Preferably, the lifting block is respectively adapted to the opening and the limiting groove, and the lifting block is movably limited inside the opening.

[0010] Preferably, the large gear and the small gear are meshed, and the circular shaft is movably limited inside the two groups of movable shaft frames.

[0011] Preferably, the rotating shaft of the second motor penetrates through the upper side of the mounting frame and is connected to the small gear. The small gear is located inside the mounting frame.

[0012] Preferably, the single-girder body is fixedly connected to the circular shaft, and the hoisting component is slidably limited on the outer side of the single-girder body.

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

[0014] 1. By starting the second motor to drive the single-girder body to rotate, it is convenient to drive the hoisted goods to move slightly. When making fine distance adjustment, the operation is relatively simple, and compared with the existing bidirectional moving components, it has a wider angle adjustment range. While driving the goods to translate, it can also perform angle conversion, so it can perform more accurate positioning, thereby improving the efficiency and quality of the hoisting work.

[0015] 2. Start the first motor fixedly installed at the upper end of the support base, drive the screw rod to rotate through its rotating shaft, and then make the lifting block connected by threads move downward inside the opening and the limiting groove, thereby driving the upper components such as the single-beam body and the lifting assembly to move to the lower position, so as to facilitate maintenance when the upper components are damaged, without the need for maintenance personnel to climb to the upper side, thereby improving its safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a suspended single-beam crane of the present utility model;

[0017] Figure 2 FIG. 2 is a schematic diagram of a partial cross-sectional structure of a suspended single-beam crane of the present utility model;

[0018] Figure 3 FIG. 3 is a schematic diagram of a partial cross-sectional structure of a hoisting mechanism of a suspended single-beam crane of the present utility model;

[0019] Figure 4 FIG. 4 is a schematic diagram of an enlarged structure of part A of a suspended single-beam crane of the present utility model.

[0020] In the figures: 1, support base; 2, hoisting mechanism; 21, first motor; 22, frame; 23, fixing plate; 24, screw rod; 25, lifting block; 26, opening; 27, limiting groove; 28, fixing block; 29, movable shaft frame; 210, large gear; 211, round shaft; 212, mounting frame; 213, second motor; 214, small gear; 215, connecting frame; 216, single-beam body; 217, lifting assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] As Figures 1-4As shown in the figure, a suspended single-girder crane includes a support base 1. At the upper end of the support base 1, there is a hoisting mechanism 2. The hoisting mechanism 2 includes a first motor 21 fixedly installed at the upper end of the support base 1. At the front and rear sides of the upper end of the support base 1 near the first motor 21, a frame 22 is fixedly provided. Inside the frame 22, near the upper side of the first motor 21, a fixing plate 23 is fixedly installed. On the upper side of the first motor 21, a screw rod 24 is fixedly connected. Outside the screw rod 24, a lifting block 25 is movably arranged. At the position corresponding to the lifting block 25 on the front side of the frame 22, an opening 26 is provided. At the position corresponding to the lifting block 25 on the rear side of the frame 22, a limiting groove 27 is provided. At the upper and lower sides near the front end of the lifting block 25, fixing blocks 28 are fixedly connected. At the same-direction ends of the two groups of fixing blocks 28, movable shaft frames 29 are fixedly provided. Outside the upper group of the two groups of movable shaft frames 29, a large gear 210 is fixedly sleeved. Inside the two groups of movable shaft frames 29, a round shaft 211 is movably arranged. Near the upper side of the front side of the round shaft 211, a mounting frame 212 is fixedly installed. At the upper end of the mounting frame 212, a second motor 213 is fixedly installed. At the lower side of the second motor 213, a small gear 214 is fixedly connected. At the front side of the round shaft 211, a connecting frame 215 is fixedly welded. At the lower side of the connecting frame 215, a single-girder body 216 is fixedly provided. Outside the single-girder body 216, a hoisting component 217 is movably arranged.

[0023] In this embodiment, the rotating shaft of the first motor 21 penetrates through the inside of the fixing plate 23 near the center and is connected to the screw rod 24. The screw rod 24 is movably connected to the frame 22. The lifting block 25 is threadedly connected to the screw rod 24. The lifting block 25 is respectively adapted to the opening 26 and the limiting groove 27. The lifting block 25 is limited and movably arranged inside the opening 26. The large gear 210 and the small gear 214 are meshingly arranged. The round shaft 211 is limited and movably arranged inside the two groups of movable shaft frames 29. The rotating shaft of the second motor 213 penetrates through the upper side of the mounting frame 212 and is connected to the small gear 214. The small gear 214 is located inside the mounting frame 212. The single-girder body 216 is fixedly connected to the round shaft 211. The hoisting component 217 is limited and slidably arranged outside the single-girder body 216.

[0024] Specifically,

[0025] Working principle:

[0026] During use, first start the first motor 21 fixedly installed at the upper end of the support base 1. Drive the screw rod 24 to rotate through its rotating shaft, so that the thread-connected lifting block 25 moves downward inside the opening 26 and the limit groove 27, thereby driving the upper-side components such as the single-beam body 216 and the lifting assembly 217 to move to the lower position. When the upper-side components are damaged, it is convenient for maintenance without the need for maintenance personnel to climb to the upper side, thus improving its safety. In addition, when fine position adjustment is required for the goods lifted by the lifting assembly 217, start the second motor 213, and its rotating shaft drives the small gear 214 to rotate. Cooperate with the large gear 210 fixedly installed on the outside of the upper-side set of movable shaft frames 29. Through its meshing setting, drive the round shaft 211 to rotate, thereby driving the connecting frame 215 and the single-beam body 216 to rotate. Finally, the goods lifted by the lifting assembly 217 slide outside the single-beam body 216 to directly move to the appropriate position, realizing the convenience of driving the lifted goods to move finely. When making fine distance adjustment, the operation is relatively simple, and it has a wider angle adjustment range than the existing bidirectional moving assembly. It can also perform angle conversion while driving the goods to translate, so it can perform more accurate positioning, thereby improving the efficiency and quality of the lifting work.

[0027] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A suspended single-beam crane, comprising a support base (1), characterized in that: The upper end of the support seat (1) is provided with a lifting mechanism (2), and the lifting mechanism (2) comprises a first motor (21) fixedly mounted on the upper end of the support seat (1); a frame (22) is fixedly mounted on the upper end of the support seat (1) near the front and rear sides of the first motor (21); a fixing plate (23) is fixedly mounted on the inner side of the frame (22) near the upper side of the first motor (21); a screw rod (24) is fixedly connected to the upper side of the first motor (21); a lifting block (25) is movably arranged on the outer side of the screw rod (24); an opening (26) is provided on the front side of the frame (22) corresponding to the position of the lifting block (25); a limiting groove (27) is provided on the rear side of the frame (22) corresponding to the position of the lifting block (25); and a fixed screw rod (23) is fixedly connected to the front end of the lifting block (25) near the upper and lower sides. A fixed block (28), a movable shaft frame (29) is fixedly provided at one end in the same direction of the two groups of fixed blocks (28), a large gear (210) is fixedly sleeved on the outer side of one group of the two groups of movable shaft frames (29) close to the upper side, a round shaft (211) is movably provided on the inner side of the two groups of movable shaft frames (29), a mounting frame (212) is fixedly provided on the front side of the round shaft (211) close to the upper side, a second motor (213) is fixedly installed on the upper end of the mounting frame (212), a pinion gear (214) is fixedly connected to the lower side of the second motor (213), a connecting frame (215) is fixedly welded to the front side of the round shaft (211), a single beam body (216) is fixedly provided on the lower side of the connecting frame (215), and a lifting assembly (217) is movably provided on the outer side of the single beam body (216).

2. A suspended single-beam crane according to claim 1, characterized in that: The rotating shaft of the first motor (21) passes through the inner side of the fixing plate (23) near the center and is connected to the screw rod (24); the screw rod (24) and the frame (22) are movably connected; and the lifting block (25) and the screw rod (24) are threadedly connected.

3. A suspended single-beam crane according to claim 1, characterized in that: The lifting block (25) is respectively matched with the opening (26) and the limiting groove (27), and the lifting block (25) is limited and movable at a position inside the opening (26).

4. A suspended single-beam crane according to claim 1, characterized in that: The large gear (210) and the small gear (214) are meshed with each other, and the circular shaft (211) is limited and movable inside the two sets of movable shaft frames (29).

5. A suspended single-beam crane according to claim 1, characterized in that: The rotating shaft of the second motor (213) passes through the upper side of the installation frame (212) and is connected to a pinion gear (214), and the pinion gear (214) is located on the inner side of the installation frame (212).

6. A suspended single-beam crane according to claim 1, characterized in that: The single beam body (216) is fixedly connected to the circular shaft (211), and the lifting assembly (217) is limitedly slidable on the outside of the single beam body (216).

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