Electric rope hoist bridge crane
By installing cameras for auxiliary observation and high-precision limit switches on electric hoist bridge cranes, the problems of blind spots and insufficient limit accuracy have been solved, resulting in safer operation and more stable running.
Patent Information
- Application Number
- CN202423093019.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-16
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-16
AI Technical Summary
Existing electric hoist bridge cranes have blind spots and insufficient limit accuracy during operation, leading to collisions and safety hazards.
It adopts a top-mounted installation mechanism and a high-precision limit switch design, and is equipped with a camera to assist in observation and wireless transmission, which expands the operating field of view. It also ensures accurate stopping through symmetrical high-precision limit switches at the front and rear.
It improves the operator's field of vision and safety, avoids the risk of electric hoists overshooting or derailing, and ensures the stable operation of the crane.
Smart Images
Figure CN223592274U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge crane technical field, concretely is a kind of electric hoist bridge crane. BACKGROUND
[0002] Bridge crane, commonly known as "bridge crane", is a kind of material hoisting crane that is horizontally arranged above workshop, warehouse and material yard. It plays an important role in material handling in warehouse, factory, mine and port due to its high efficiency, flexibility and stability. The structure of bridge crane is usually composed of main beam, end beam, supporting leg, lifting mechanism, running mechanism, electrical control system and other parts, which can realize the movement of materials in vertical, horizontal and longitudinal directions, so as to move heavy objects to any position in workshop and complete the lifting and transportation task. At present, there are various types of bridge cranes, including electric hoist bridge crane.
[0003] The existing electric hoist bridge crane has the following problems when in use: when the existing electric hoist bridge crane is in use, the operator needs to operate in the operating room or on the ground, and there is a blind area in the field of vision. Due to the limited operating field of vision, the operator cannot fully observe the running state of the crane and the surrounding environment, which may cause accidents such as collision. In addition, the existing limiting device has the problem of insufficient precision, which causes the electric hoist to stop at the limit position and causes the safety hazard of collision or derailment. UTILITY MODEL CONTENT
[0004] (I) Technical problem solved
[0005] In view of the shortcomings of the prior art, the utility model provides an electric hoist bridge crane, which solves the problems raised in the background art.
[0006] (II) Technical scheme
[0007] To achieve the above purpose, the utility model provides the following technical scheme: an electric hoist bridge crane, comprising a top-mounted mechanism, wherein the top-mounted mechanism is provided with an electric hoist mechanism at the bottom end, the top-mounted mechanism comprises two front and rear symmetrical I-shaped beams, the two ends of the I-shaped beam are provided with a safety protection mechanism, the top end of the I-shaped beam is fixedly connected with a box-shaped beam, the electric hoist mechanism comprises a self-propelled crane mounted on the two I-shaped beams away from each other, the bottom end of the two self-propelled cranes is fixedly provided with the same lifting mechanism, the two self-propelled cranes are each fixedly provided with a controller away from each other, the two controllers are connected by a connecting line, and one end of the two controllers is fixedly provided with a camera.
[0008] As a further scheme of the utility model: the safety protection mechanism includes the limit stopper fixedly connected between the same side end of two H-shaped small beams, and the safety protection mechanism further includes the limit switch fixedly connected to the front and back sides of the two ends of the H-shaped small beam, and the controller is internally provided with a wireless transmitter, and the limit switch is a high-precision switch and also internally provided with a wireless transmitter.
[0009] As a further scheme of the utility model: the lifting mechanism includes the mounting bracket fixedly connected to the bottom end of two self-propelled cranes, and the electric winch is fixedly installed at the bottom end of the mounting bracket, and the electric winch is provided with a drive shaft at one side, and a winding drum is fixedly sleeved and installed outside the drive shaft, and the winding drum is provided with a steel cable wound on the annular outer wall, and one end of the steel cable is fixedly connected to the annular outer wall of the winding drum, and the other end of the steel cable is fixedly connected with a hook.
[0010] As a further scheme of the utility model: the box-shaped girder is arranged in a front-rear symmetrical manner, a plurality of webs are fixedly connected between the top ends of the two box-shaped girders in a horizontal and equidistant manner, the mounting bracket is fixedly connected with an auxiliary support at one end, the auxiliary support is an L-shaped bracket, and a through hole is formed between the two side walls below one end of the auxiliary support to allow the drive shaft to rotate.
[0011] Compared with the prior art, the utility model has the advantages that:
[0012] 1、In the utility model, the auxiliary observation mechanism is arranged, that is, the controller is arranged at the front and rear ends of the electric hoist mechanism, the camera is installed at one end of the controller, the running state of the crane and the surrounding environment are observed, the real-time picture around the crane is transmitted to the display screen in the operating room, and the visual range of the operator is enlarged.
[0013] 2、In the utility model, the double high-precision limit switches arranged in a front-rear symmetrical manner are adopted, the high-precision limit switches are fixedly installed on the front and back sides of the two ends of the H-shaped small beam, the controller of the electric hoist mechanism is wirelessly connected to the high-precision limit switches, the accuracy and reliability of the high-precision limit switches are ensured, the limit stopper is installed at the two ends of the H-shaped small beam, the limit stopper is used as the backup protection of the limit switch, and the safety hazards of the electric hoist mechanism hitting the top or derailing are avoided. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is the overall three-dimensional structure of the utility model Figure 1 ;
[0015] Figure 2 It is the overall three-dimensional structure of the utility model Figure 2 ;
[0016] Figure 3 It is the top-mounted mounting mechanism of the utility model;
[0017] Figure 4 isometric view of the electric hoist mechanism of the utility model.
[0018] In the figure: 1, top-mounted mechanism; 2, electric hoist mechanism; 11, I-shaped beam; 12, box-shaped beam; 13, web; 14, limit block; 15, limit switch; 21, self-propelled crane; 22, controller; 23, camera; 24, mounting bracket; 25, electric winch; 26, auxiliary support; 27, drum; 28, steel cable; 29, hook. DETAILED DESCRIPTION
[0019] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0020] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0021] In the description of the utility model, it should be noted that, unless otherwise specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0022] Please refer to Figures 1-4The utility model discloses an electric hoist bridge crane, including top -mounted installation mechanism 1, and top -mounted installation mechanism 1 bottom end is provided with electric hoist mechanism 2, and top -mounted installation mechanism 1 includes two and is provided with I -beam 11 of symmetry of front and back, and I -beam 11 both ends are provided with safety protection mechanism, and I -beam 11 top fixedly connected with box girder 12, and electric hoist mechanism 2 includes the self -propelled crane 21 of installation in the separation one end of two I -beams 11, and the same lifting mechanism is fixedly installed in the bottom of two self -propelled cranes 21, and one controller 22 is fixedly installed in the separation one end of two self -propelled cranes 21, and the connection between two controllers 22 is connected, and one camera 23 is fixedly installed in the one end of two controllers 22, and the whole is provided with auxiliary observation mechanism, that is, the controller 22 is provided in the both ends of electric hoist mechanism 2, and the camera 23 is installed in the one end of controller 22, plays the role of auxiliary observation crane's operating state and surrounding environment, and the real -time picture around crane is transmitted to the display screen of operating room, and then the visual field range of operator is expanded.
[0023] The safety protection mechanism includes a limiting block 14 fixedly connected between the same side ends of the two I-beams 11, and further includes limiting switches 15 fixedly connected to the front and back sides of the two ends of the I-beams 11. The controller 22 is internally provided with a wireless transmitter, and the limiting switches 15 are high-precision switches and also internally provided with a wireless transmitter. The whole is designed with double high-precision limiting switches 15 in a front-back symmetry manner, and the high-precision limiting switches 15 are fixedly installed on the front and back sides of the two ends of the I-beams 11. The wireless transmitter is connected to the controller 22 of the electric hoist mechanism 2, so as to ensure the accuracy and reliability. Meanwhile, the limiting block 14 is installed on the two ends of the I-beams 11, which serves as a backup protection for the limiting switches 15 and can avoid the safety hazards of the electric hoist mechanism 2 hitting the top or derailing.
[0024] The lifting mechanism includes a mounting frame 24 fixedly connected to the bottom of the two self-propelled cranes 21, and an electric winch 25 fixedly installed on the bottom of the mounting frame 24. The electric winch 25 is provided with a drive shaft on one side, and a drum 27 is fixedly sleeved and installed on the outside of the drive shaft. The drum 27 is provided with a steel cable 28 wound on the annular outer wall thereof. One end of the steel cable 28 is fixedly connected to the annular outer wall of the drum 27, and the other end of the steel cable 28 is fixedly connected to a hook 29. The hook 29 can be hung with an object to be lifted, and the drum 27 is driven to rotate by the drive shaft of the electric winch 25, so as to realize the winding and unwinding of the steel cable 28, and further drive the hook 29 to realize the lifting of the object to be lifted. At this time, the self-propelled crane 21 moves, so as to realize the horizontal movement of the object to be lifted after being lifted.
[0025] The box-shaped girders 12 are symmetrically arranged front and back, a plurality of webs 13 are fixedly connected between the top ends of the two box-shaped girders 12 in a horizontal and equidistant manner, one end of the mounting frame 24 is fixedly connected with an auxiliary support 26, the auxiliary support 26 is an L-shaped support, and a through hole for the rotation of the driving shaft is formed between the two side walls below one end of the auxiliary support 26, the auxiliary support 26 plays an auxiliary supporting role for the driving shaft and improves the load-bearing capacity of the driving shaft.
[0026] The working principle of the utility model is: the hook 29 can be hung with the object to be lifted, the driving shaft of the electric winch 25 drives the drum 27 to rotate, the steel cable 28 is wound and unwound, the hook 29 is driven to realize the lifting of the object to be lifted, at this time, the self-propelled crane 21 moves, the horizontal movement of the object to be lifted after being lifted can be realized, the auxiliary observation mechanism is integrally arranged, the controllers 22 are arranged at the front and rear ends of the electric hoist mechanism 2, the cameras 23 are mounted at one end of the controllers 22, the running state of the crane and the surrounding environment are observed, the real-time picture around the crane is transmitted to the display screen in the operating room, the visual range of the operator is expanded, in addition, the double high-precision limit switches 15 are symmetrically arranged front and back, the high-precision limit switches 15 are fixedly installed at the two ends of the I-shaped girder 11, the controllers 22 of the electric hoist mechanism 2 are wirelessly connected to the high-precision limit switches 15, the accuracy and reliability can be ensured, the limit stoppers 14 are installed at the two ends of the I-shaped girder 11, the limit stoppers 14 are backup protection of the limit switches 15, the safety hazards of the electric hoist mechanism 2 hitting the top or derailing can be avoided.
[0027] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. An electric hoist bridge crane, comprising a top-mounted mechanism (1), wherein the bottom end of the top-mounted mechanism (1) is provided with an electric hoist mechanism (2); characterized in that The top-mounted mechanism (1) comprises two front and rear symmetrical I-shaped beams (11), the two ends of the I-shaped beams (11) are provided with safety protection mechanisms, and the top end of the I-shaped beams (11) is fixedly connected with a box-shaped beam (12); The electric hoist mechanism (2) comprises self-propelled cranes (21) mounted at the ends away from each other of the two I-shaped beams (11), and the bottom ends of the two self-propelled cranes (21) are fixedly mounted with the same hoisting mechanism; One controller (22) is fixedly installed at each end away from each other of the two self-propelled cranes (21), the two controllers (22) are connected through a connecting line, one camera (23) is fixedly installed at one end of each of the two controllers (22), and the controller (22) is provided with a wireless transmitter.
2. A motorised bridge crane according to claim 1, characterised in that: The two box-shaped beams (12) are arranged in front and rear symmetry, and a plurality of webs (13) are fixedly connected between the top ends of the two box-shaped beams (12) in a horizontal and equidistant manner.
3. A motorised bridge crane according to claim 1, characterised in that: The safety protection mechanism comprises a limiting block (14) fixedly connected between the same side ends of the two I-shaped beams (11).
4. A motorised bridge crane according to claim 1, characterised in that: The safety protection mechanism further comprises limiting switches (15) fixedly connected to the front and rear sides of the two ends of the I-shaped beams (11), the limiting switches (15) are high-precision switches and also provided with a wireless transmitter.
5. A motorised bridge crane according to claim 1, characterised in that: The hoisting mechanism comprises a mounting bracket (24) fixedly connected to the bottom ends of the two self-propelled cranes (21), and the bottom end of the mounting bracket (24) is fixedly mounted with an electric winch (25).
6. A motorised bridge crane according to claim 5, characterised in that: One side of the electric winch (25) is provided with a drive shaft, a drum (27) is fixedly sleeved and mounted on the outer side of the drive shaft, a steel cable (28) is wound around the annular outer wall of the drum (27), one end of the steel cable (28) is fixedly connected to the annular outer wall of the drum (27), and the other end of the steel cable (28) is fixedly connected with a hook (29).
7. A motorised bridge crane according to claim 5, characterised in that: One end of the mounting bracket (24) is fixedly connected with an auxiliary support (26), the auxiliary support (26) is an L-shaped bracket, and a through hole for the rotation of the drive shaft is formed between the two side walls below one end of the auxiliary support (26).