LH type electric hoist bridge crane

Abstract

The utility model relates to the technical field of cranes, and particularly discloses an LH type electric hoist bridge crane which comprises a main beam, a cross beam and a trolley device, the cross beam is installed at the end of the main beam, a steel rail mechanism is arranged on the main beam, and the trolley device is installed on the steel rail mechanism in a sliding mode. The steel rail mechanism comprises a steel rail body, a steel rail mounting plate and a plurality of steel rail pressing plates, the steel rail mounting plate is arranged on the main beam, the steel rail body is mounted on the steel rail mounting plate, the steel rail pressing plates are sequentially distributed and mounted on the side face of the steel rail body at equal intervals, and a car stop is mounted at the end of the steel rail body. The steel rail pressing plate and the car stop are additionally arranged on the steel rail body and matched with each other to stop the trolley device, the trolley device is prevented from derailing in the running process, safety is improved, the overall structure is simple, manufacturing cost is low, installation and maintenance are convenient, and later maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of crane technology, and in particular to an LH type electric hoist bridge crane. Background Technology

[0002] A bridge crane is a type of crane whose bridge structure runs on elevated tracks. The bridge of the bridge crane travels along the length of the tracks laid on both sides of the elevated structure, while the lifting trolley moves along the length of the tracks laid on the bridge, forming a rectangular working area. This fully utilizes the space beneath the bridge to lift and transport materials without being obstructed by ground equipment. Therefore, bridge cranes are widely used in various settings, including indoor and outdoor warehouses, factories, docks, and open-air storage yards.

[0003] A search revealed that Chinese utility model patent CN202122011445.8 discloses a bridge crane, comprising a lifting device and trolley tracks. Two trolley tracks are arranged in parallel. The lifting device includes a lifting section and two drive units, each suspended on one of the two trolley tracks. Both ends of the lifting section are connected to the two drive units. In this bridge crane, the trolley tracks can be directly installed on the building structure beams or columns, while the lifting device is suspended from the tracks. The trolley tracks and track support structure are integrated, reducing the number of components in the bridge crane. Furthermore, the drive units are readily available prefabricated components, thus lowering the cost of the bridge crane and facilitating its installation.

[0004] For example, Chinese utility model patent application number CN202321306220.8 discloses a bridge crane, belonging to the field of lifting machinery technology. It includes a bridge frame, a crane trolley mounted on top of the bridge frame, and traveling mechanisms at both ends of the lower part of the bridge frame. Each traveling mechanism includes a first mounting frame and traveling wheels symmetrically arranged on both sides of the first mounting frame. The first mounting frame is fixed to the bridge frame. A connecting rod is provided between the first mounting frame and the traveling wheels. One end of the connecting rod is hinged to the first mounting frame, and the other end is rotatably connected to the traveling wheel on the same side. Gears are fixed to the ends of both connecting rods near the first mounting frame, and the two gears mesh. A first drive mechanism is connected to one of the connecting rods, driving the connecting rod on that side to rotate around the first mounting frame, thereby moving the two traveling wheels closer together or further apart. This utility model provides a bridge crane whose applicability is improved by adjusting the maximum lifting height.

[0005] While the existing bridge cranes can meet basic usage requirements, their crane trolleys are prone to derailment during operation, posing significant safety hazards. Furthermore, their overall structure is complex, resulting in high manufacturing costs. Installation and maintenance are often inconvenient, making it difficult for operators to operate them, and subsequent maintenance costs are also high. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide an LH type electric hoist bridge crane that addresses the above-mentioned defects of the prior art. By adding a rail pressure plate and a stop to the rail body to block the trolley device, the trolley device is prevented from derailing during operation, thus improving safety. In addition, the overall structure is relatively simple, the manufacturing cost is low, and it is convenient to install and maintain, resulting in low maintenance costs in the later stages.

[0007] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0008] An LH-type electric hoist bridge crane includes a main beam, a crossbeam, and a trolley device. The crossbeam is installed at the end of the main beam. A rail mechanism is provided on the main beam. The trolley device is slidably installed on the rail mechanism. The rail mechanism includes a rail body, a rail mounting plate, and several rail pressure plates. The rail mounting plate is disposed on the main beam. The rail body is installed on the rail mounting plate. The rail pressure plates are distributed at equal intervals on the side of the rail body. A stop is installed at the end of the rail body.

[0009] Preferably, a walkway is provided on the main beam, and a walkway railing is installed on the walkway.

[0010] Preferably, the main beam includes a first main beam and a second main beam arranged parallel to each other, and both the first main beam and the second main beam are provided with the rail mechanism.

[0011] Preferably, the crossbeam includes a left crossbeam and a right crossbeam arranged parallel to each other, and the left crossbeam and the right crossbeam are respectively installed at the left and right ends of the main beam.

[0012] Preferably, the trolley device is provided with a trolley frame and an electric hoist. The trolley frame is installed on the rail mechanism through a rail-sweeping plate, and the electric hoist is connected to the trolley frame through a first bolt.

[0013] Preferably, a second bolt is provided on the main beam, and a nut compatible with the second bolt is installed on the inner side of the crossbeam.

[0014] By adopting the above technical solution, the LH-type electric hoist bridge crane provided by this utility model has the following beneficial effects: the crossbeam of the LH-type electric hoist bridge crane is installed at the end of the main beam, and a rail mechanism is provided on the main beam. The trolley device is slidably installed on the rail mechanism. The rail mechanism includes a rail body, a rail mounting plate, and several rail pressure plates. The rail mounting plate is set on the main beam, the rail body is installed on the rail mounting plate, and the rail pressure plates are distributed at equal intervals on the side of the rail body. A stop is installed at the end of the rail body. By adding rail pressure plates and a stop on the rail body to block the trolley device, the running stability of the trolley device is improved, the derailment of the trolley device during operation is prevented, and safety is improved. In addition, the overall structure is relatively simple, the manufacturing cost is low, the installation and maintenance are convenient, the operation is easy, and the later maintenance cost is low. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a top view of the structure of this utility model;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 This is a top view of the trolley device of this utility model;

[0019] Figure 5 This is a side view of the trolley device of this utility model;

[0020] Figure 6 This is a top view of the rail mechanism in this utility model.

[0021] In the diagram, 1-main beam, 2-crossbeam, 3-trolley device, 4-rail mechanism, 5-rail body, 6-rail mounting plate, 7-rail pressure plate, 8-car stop, 9-walkway, 10-walkway railing, 11-first main beam, 12-second main beam, 13-left crossbeam, 14-right crossbeam, 15-trolley frame, 16-electric hoist, 17-first bolt, 18-second bolt, 19-nut, 20-rail sweeping plate. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0023] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] like Figure 1-6 As shown, the LH-type electric hoist bridge crane includes a main beam 1, a crossbeam 2, and a trolley device 3. The crossbeam 2 is installed at the end of the main beam 1. A rail mechanism 4 is provided on the main beam 1. The trolley device 3 is slidably installed on the rail mechanism 4. The rail mechanism 4 includes a rail body 5, a rail mounting plate 6, and several rail pressure plates 7. The rail mounting plate 6 is disposed on the main beam 1, and the rail body 5 is installed on the rail mounting plate 6. The rail pressure plates 7 are distributed at equal intervals on the side of the rail body 5. A stop 8 is installed at the end of the rail body 5. It can be understood that the rail pressure plates 7 are used to prevent the trolley device 3 from detaching from the side of the rail body 5, and the stop 8 is used to prevent the trolley device 3 from detaching from the end of the rail body 5, thereby improving the operational safety of the trolley device 3.

[0026] Specifically, the main beam 1 is provided with a walkway 9, and a walkway railing 10 is installed on the walkway 9 to facilitate maintenance by operators; the main beam 1 includes a first main beam 11 and a second main beam 12 arranged in parallel with each other, and both the first main beam 11 and the second main beam 12 are provided with the rail mechanism 4; the crossbeam 2 includes a left crossbeam 13 and a right crossbeam 14 arranged in parallel with each other, and the left and right crossbeams 13 and 14 are respectively installed at the left and right ends of the main beam 1; the trolley device 3 is provided with a trolley frame 15 and an electric hoist 16, the trolley frame 15 is installed on the rail mechanism 4 through a rail sweeping plate 20, and the electric hoist 16 is connected to the trolley frame 15 through a first bolt 17; the main beam 1 is provided with a second bolt 18, and the inner side of the crossbeam 2 is provided with a nut 19 that matches the second bolt 18 to improve the connection stability between the main beam 1 and the crossbeam 2.

[0027] Understandably, this utility model has a reasonable design and unique structure. By adding a rail pressure plate 7 and a stop 8 to the rail body 5 to block the trolley device 3, the running stability of the trolley device 3 is improved, preventing the trolley device 3 from derailing during operation, thus improving safety. In addition, the overall structure is relatively simple, the manufacturing cost is low, and it is convenient to install and maintain. It is easy to operate and has low maintenance costs in the later stage.

[0028] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. An LH-type electric hoist bridge crane comprising a main beam, a cross beam and a trolley device, the cross beam is installed at the end of the main beam, a rail mechanism is arranged on the main beam, and the trolley device is slidingly installed on the rail mechanism, characterized in that: The rail mechanism comprises a rail body, a rail mounting plate and a plurality of rail pressing plates, the rail mounting plate is arranged on the main beam, the rail body is mounted on the rail mounting plate, the rail pressing plates are mounted on the side surface of the rail body in sequence and at equal intervals, and a vehicle stopper is mounted on the end of the rail body.

2. The LH electric hoist bridge crane according to claim 1, characterized in that: A walkway is arranged on the main beam, and a walkway handrail is mounted on the walkway.

3. The LH electric hoist bridge crane according to claim 1, characterized in that: The main beam comprises a first main beam and a second main beam arranged in parallel with each other, and the first main beam and the second main beam are both provided with the rail mechanism.

4. The LH electric hoist bridge crane according to claim 1, characterized in that: The cross beam comprises a left cross beam and a right cross beam arranged in parallel with each other, and the left cross beam and the right cross beam are respectively mounted on the left end and the right end of the main beam.

5. The LH electric hoist bridge crane according to claim 1, characterized in that: A trolley frame and an electric hoist are arranged on the trolley device, the trolley frame is mounted on the rail mechanism through a rail sweeping plate, and the electric hoist is connected with the trolley frame through a first bolt.

6. The LH electric hoist bridge crane according to claim 1, characterized in that: A second bolt is arranged on the main beam, and a nut matched with the second bolt is mounted on the inner side of the cross beam.

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