Double-beam double-suspension point bridge crane

Abstract

The utility model is suitable for bridge crane technical field provides a kind of double-beam double lifting point bridge crane, including: hoisting track;The device is driven to rotate by the double-shaft motor of hoisting movement subassembly, makes mobile frame along hoisting track and moves to target position, realizes the accurate control of hoisting position. Subsequently, the servo motor in hoisting height adjusting subassembly starts, through winding roller axle one take -up connection lock chain one, drive electric hoist and connecting rod move up and down, to adjust hoisting height, satisfy the hoisting demand of different height. When needing to hoist two articles, hoisting balance adjusting subassembly plays a role, and servo motor two are through winding roller axle two take -up connection lock chain two, adjust the position of hook, cooperate the guiding effect of limiting frame, so that two hooks can be fine-tuned according to the center of gravity and shape of article, to solve the problem that double-hook hook design cannot guarantee the hoisting level of two articles to some extent, improve the stability and security of hoisting.

Description

Technical Field

[0001] This utility model belongs to the technical field of bridge cranes, and particularly relates to a double-beam double-lifting-point bridge crane. Background Technology

[0002] Bridge cranes are a common type of crane. Their main structure consists of two parallel main beams connected at both ends by end beams, forming a bridge-shaped frame. These cranes are typically installed on the roof of factories or warehouses and move along tracks within the premises for lifting and transporting various materials or equipment. Bridge cranes have a high lifting capacity and a large working range, enabling both vertical lifting and horizontal movement. They are widely used in industrial production, logistics, and warehousing, and are indispensable material handling equipment in modern industrial production.

[0003] Chinese patent CN219567358U discloses a dual-point crane, which includes "two sets of crossbeams and two sets of moving carriages; each moving carriage includes a frame and several moving wheels mounted on the frame; the crossbeams are provided with guide rail grooves corresponding to the moving wheels; the frame is provided with a drive unit for driving the moving wheels to rotate; the bottom of the drive unit is connected to the lifting mechanism; the two sets of frames are connected to protective plates by buffers on their adjacent sides; the present invention provides two sets of moving carriages, the positions of which can be adjusted on the crossbeams to facilitate the adjustment of the position between the two sets of hooks, thus facilitating the lifting of materials by the crane; the frames of the two sets of moving carriages are connected to protective plates by buffers, which can play a limiting and protective role, avoiding direct contact when the two sets of frames are close together, and reducing the impact damage to the two sets of moving carriages."

[0004] However, the above-mentioned scheme has obvious defects in its double-hook design during the use of the double-lifting-point crane, which cannot effectively guarantee the horizontal balance when lifting two items. Since the double hooks are set independently, when the two hooks are connected to different items, the differences in the weight, shape, and center of gravity of the items can easily lead to uneven force on the two hooks, making it difficult to keep the two items on the same horizontal plane. Therefore, it is necessary to design a double-beam double-lifting-point bridge crane. Utility Model Content

[0005] This utility model provides a double-beam double-lifting-point bridge crane, which aims to solve the problem that the currently used double-hook design cannot guarantee the horizontal lifting of two items.

[0006] This utility model is implemented as follows: a double-beam, double-lifting-point bridge crane, comprising: a lifting rail; a lifting moving assembly mounted on the lifting rail, the lifting moving assembly being used to control the lifting position; a lifting height adjusting assembly mounted on the lifting moving assembly, the lifting height adjusting assembly being used to adjust the lifting height; a lifting balance adjusting assembly mounted at the bottom of the lifting height adjusting assembly, the lifting balance adjusting assembly being used to reduce offset during double lifting; a buffer anti-collision assembly mounted on the lifting rail, the buffer anti-collision assembly being used to prevent collisions when adjusting the double beams; and a buffer limiting assembly mounted on the lifting rail, the buffer limiting assembly being used to prevent impact when adjusting to the tail end.

[0007] Preferably, the hoisting moving assembly includes: a moving frame movably mounted on the hoisting rail, an installation plate fixedly mounted inside the moving frame, a rotating wheel movably mounted inside the moving frame, a dual-axis motor fixedly mounted inside the moving frame, a rotating shaft fixedly mounted on the drive end of the dual-axis motor, and one end of the rotating shaft fixedly connected to one side of the rotating wheel.

[0008] Preferably, the hoisting height adjustment assembly includes: a servo motor fixedly installed on the top of the mobile frame; a winding roller shaft fixedly installed on the drive end of the servo motor; a connecting chain fixedly installed on the outer surface of the winding roller shaft; an electric hoist movably installed on one end of the connecting chain; and a connecting rod movably installed on the bottom of the electric hoist.

[0009] Preferably, there are two sets of servo motors, take-up rollers, and connecting chains, and the two sets of servo motors, take-up rollers, and connecting chains are symmetrically arranged on the moving frame.

[0010] Preferably, the hoisting balance adjustment assembly includes: a limiting frame fixedly installed at the bottom of the connecting rod, a servo motor II fixedly installed on one side of the limiting frame, a take-up roller II fixedly installed at the drive end of the servo motor II, the take-up roller II movably installed inside the limiting frame, a connecting chain II fixedly installed on the outer surface of the take-up roller II, and a hook fixedly installed at the bottom of the connecting chain II.

[0011] Preferably, the buffer anti-collision assembly includes: a support plate fixedly installed on the top of the hoisting track, a spring fixedly installed on one side of the support plate, a buffer plate fixedly installed on one side of the spring, and the buffer plate being movably installed inside the hoisting track.

[0012] Preferably, the buffer anti-collision assembly further includes: a side plate fixedly installed on one side of the movable frame, and a buffer rubber post fixedly installed on one side of the side plate.

[0013] Preferably, the buffer limiting assembly includes: a second side plate fixedly installed on the other side of the movable frame, a second rubber buffer column fixedly installed on one side of the second side plate, an end plate fixedly installed at one end of the hoisting track, and a third rubber buffer column fixedly installed on one side of the end plate.

[0014] Compared with related technologies, the double-beam double-lifting-point bridge crane provided by this utility model has the following beneficial effects: When using this double-girder, double-lifting-point bridge crane for lifting operations, the dual-axis motors of the lifting moving assembly first drive the rotating wheel to rotate, moving the moving frame along the lifting track to the target position, achieving precise control of the lifting position. Subsequently, servo motor one in the lifting height adjustment assembly starts, winding and unwinding the connecting chain via the winding roller shaft one, driving the electric hoist and connecting rod up and down, thereby adjusting the lifting height to meet different lifting requirements. When lifting two items, the lifting balance adjustment assembly comes into play. Servo motor two, winding and unwinding the connecting chain via the winding roller shaft two, adjusts the position of the hooks. Combined with the guiding effect of the limiting frame, the two hooks can be finely adjusted according to the center of gravity and shape of the items, thus solving to some extent the problem that the double-hook design cannot guarantee the horizontal lifting of two items, improving the stability and safety of the lifting operation. Meanwhile, the springs and buffer plates of the buffer anti-collision assembly, as well as the first buffer rubber column, play a buffering role when the moving frame approaches to prevent collision damage; the second and third rubber buffer columns of the buffer limit assembly provide buffering and limit protection when the moving frame moves to the end of the track to avoid impact and ensure safe operation of the equipment. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the hoisting and moving component structure of this utility model; Figure 3 This is a schematic diagram of the hoisting height adjustment component of this utility model; Figure 4 This is a schematic diagram of the hoisting balance adjustment component of this utility model; Figure 5 This is a schematic diagram of the structure of the buffer anti-collision component and the buffer limiting component of this utility model.

[0016] In the diagram: 1. Lifting track; 2. Lifting moving assembly; 3. Lifting height adjustment assembly; 4. Lifting balance adjustment assembly; 5. Buffer and anti-collision assembly; 6. Buffer and limit assembly; 201. Moving frame; 202. Mounting plate; 203. Rotary wheel; 204. Dual-axis motor; 205. Rotary shaft; 301. Servo motor one; 302. Take-up roller shaft one; 303. Connecting chain one; 304. Electric hoist; 305. Connecting rod; 401. Limiting frame; 402. Servo motor two; 403. Take-up roller shaft two; 404. Connecting chain two; 405. Hook; 501. Support plate; 502. Spring; 503. Buffer plate; 504. Side plate one; 505. Buffer rubber column one; 601. Side plate two; 602. Rubber buffer column two; 603. End plate; 604. Rubber buffer column three. Detailed Implementation

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects and not to describe a particular order.

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] Example 1 A preferred embodiment of the double-beam, double-lifting-point bridge crane provided by this utility model is, for example... Figures 1 to 5 As shown, it includes: a hoisting rail 1; a hoisting moving assembly 2 mounted on the hoisting rail 1, the hoisting moving assembly 2 being used to control the hoisting position; a hoisting height adjusting assembly 3 mounted on the hoisting moving assembly 2, the hoisting height adjusting assembly 3 being used to adjust the hoisting height; a hoisting balance adjusting assembly 4 mounted at the bottom of the hoisting height adjusting assembly 3, the hoisting balance adjusting assembly 4 being used to reduce offset when hoisting two beams; a buffer anti-collision assembly 5 mounted on the hoisting rail 1, the buffer anti-collision assembly 5 being used to prevent collision when adjusting the two beams; and a buffer limiting assembly 6 mounted on the hoisting rail 1, the buffer limiting assembly 6 being used to prevent impact when adjusting to the tail end.

[0020] In this embodiment, the hoisting moving assembly 2 includes: a moving frame 201 movably mounted on the hoisting rail 1, an mounting plate 202 fixedly mounted inside the moving frame 201, a rotating wheel 203 movably mounted inside the moving frame 201, a dual-axis motor 204 fixedly mounted inside the moving frame 201, a rotating shaft 205 fixedly mounted on the drive end of the dual-axis motor 204, and one end of the rotating shaft 205 fixedly connected to one side of the rotating wheel 203.

[0021] In this embodiment, the hoisting height adjustment component 3 includes: a servo motor 301 fixedly installed on the top of the movable frame 201; a winding roller shaft 302 fixedly installed on the drive end of the servo motor 301; a connecting chain 303 fixedly installed on the outer surface of the winding roller shaft 302; an electric hoist 304 movably installed on one end of the connecting chain 303; and a connecting rod 305 movably installed on the bottom of the electric hoist 304.

[0022] In this embodiment, two sets of servo motor 301, take-up roller shaft 302, and connecting chain 303 are provided, and the two sets of servo motor 301, take-up roller shaft 302, and connecting chain 303 are symmetrically arranged on the moving frame 201.

[0023] Example 2 Based on Embodiment 1, a preferred embodiment of the double-beam double-lifting-point bridge crane provided by this utility model is, for example... Figures 1 to 5 As shown: The hoisting balance adjustment assembly 4 includes: a limiting frame 401 fixedly installed at the bottom of the connecting rod 305; a servo motor 402 fixedly installed on one side of the limiting frame 401; a take-up roller shaft 403 fixedly installed at the drive end of the servo motor 402; the take-up roller shaft 403 movably installed inside the limiting frame 401; a connecting chain 404 fixedly installed on the outer surface of the take-up roller shaft 403; and a hook 405 fixedly installed at the bottom of the connecting chain 404.

[0024] In this embodiment, the buffer anti-collision component 5 includes: a support plate 501 fixedly installed on the top of the hoisting rail 1, a spring 502 fixedly installed on one side of the support plate 501, a buffer plate 503 fixedly installed on one side of the spring 502, and the buffer plate 503 movably installed inside the hoisting rail 1.

[0025] In this embodiment, the buffer anti-collision component 5 further includes: a side plate 504 fixedly installed on one side of the movable frame 201, and a buffer rubber column 505 fixedly installed on one side of the side plate 504.

[0026] In this embodiment, the buffer limiting component 6 includes: a second side plate 601 fixedly installed on the other side of the movable frame 201, a second rubber buffer post 602 fixedly installed on one side of the second side plate 601, an end plate 603 fixedly installed at one end of the hoisting rail 1, and a third rubber buffer post 604 fixedly installed on one side of the end plate 603.

[0027] When using this double-girder, double-lifting-point bridge crane for lifting operations, the dual-axis motor 204 of the lifting moving assembly 2 first drives the swivel wheel 203 to rotate, causing the moving frame 201 to move along the lifting track 1 to the target position, achieving precise control of the lifting position. Subsequently, the servo motor 301 in the lifting height adjustment assembly 3 starts, and through the winding roller shaft 302, it winds and unwinds the connecting chain 303, driving the electric hoist 304 and connecting rod 305 to move up and down, thereby adjusting the lifting height to meet the lifting requirements of different heights. When two items need to be lifted, the lifting balance adjustment assembly 4 comes into play. The servo motor 402 winds and unwinds the connecting chain 404 through the winding roller shaft 403, adjusting the position of the hook 405. With the guiding effect of the limiting frame 401, the two hooks 405 can be finely adjusted according to the center of gravity and shape of the items, thus solving to some extent the problem that the double-hook design cannot guarantee the horizontal lifting of two items, improving the stability and safety of the lifting. Meanwhile, the spring 502, buffer plate 503, and buffer rubber post 505 of the buffer anti-collision component 5 play a buffering role when the moving frame 201 approaches, preventing collision damage; the rubber buffer post 602 and rubber buffer post 604 of the buffer limiting component 6 provide buffering and limiting protection when the moving frame 201 moves to the end of the track, avoiding impact and ensuring safe operation of the equipment.

[0028] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0029] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or make other adjustments to the features in the various embodiments of this utility model as appropriate without conflict or creative effort, thereby obtaining different technical solutions that do not depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A double-girder, double-lifting-point bridge crane, characterized in that, include: Lifting rail (1); A hoisting moving assembly (2) is mounted on the hoisting rail (1), the hoisting moving assembly (2) being used to control the hoisting position; The hoisting height adjustment assembly (3) is mounted on the hoisting moving assembly (2) and is used to adjust the hoisting height. The hoisting balance adjustment assembly (4) is mounted at the bottom of the hoisting height adjustment assembly (3), and the hoisting balance adjustment assembly (4) is used to reduce the offset when double hoisting; A buffer anti-collision assembly (5) is mounted on the hoisting rail (1) to prevent collisions when adjusting the double beams; A buffer limiting assembly (6) is mounted on the hoisting rail (1) to prevent impact when adjusted to the tail.

2. The double-beam, double-lifting-point bridge crane as described in claim 1, characterized in that, The hoisting and moving assembly (2) includes: A movable frame (201) is mounted on the hoisting rail (1). An installation plate (202) is fixedly installed inside the movable frame (201). A rotating wheel (203) is movably installed inside the movable frame (201). A dual-axis motor (204) is fixedly installed inside the movable frame (201). A rotating shaft (205) is fixedly installed at the drive end of the dual-axis motor (204). One end of the rotating shaft (205) is fixedly connected to one side of the rotating wheel (203).

3. The double-beam, double-lifting-point bridge crane as described in claim 2, characterized in that, The hoisting height adjustment assembly (3) includes: A servo motor (301) is fixedly installed on the top of the movable frame (201). A winding roller shaft (302) is fixedly installed on the drive end of the servo motor (301). A connecting chain (303) is fixedly installed on the outer surface of the winding roller shaft (302). An electric hoist (304) is movably installed on one end of the connecting chain (303). A connecting rod (305) is movably installed on the bottom of the electric hoist (304).

4. The double-beam, double-lifting-point bridge crane as described in claim 3, characterized in that, The servo motor (301), take-up roller shaft (302), and connecting chain (303) are provided in two sets, and the two sets of the servo motor (301), take-up roller shaft (302), and connecting chain (303) are symmetrically arranged on the moving frame (201).

5. The double-beam, double-lifting-point bridge crane as described in claim 4, characterized in that, The hoisting balance adjustment assembly (4) includes: A limiting frame (401) is fixedly installed at the bottom of the connecting rod (305). A servo motor (402) is fixedly installed on one side of the limiting frame (401). A take-up roller shaft (403) is fixedly installed at the drive end of the servo motor (402). The take-up roller shaft (403) is movably installed inside the limiting frame (401). A connecting chain (404) is fixedly installed on the outer surface of the take-up roller shaft (403). A hook (405) is fixedly installed at the bottom of the connecting chain (404).

6. The double-beam, double-lifting-point bridge crane as described in claim 5, characterized in that, The buffer anti-collision component (5) includes: A support plate (501) is fixedly installed on the top of the hoisting track (1). A spring (502) is fixedly installed on one side of the support plate (501). A buffer plate (503) is fixedly installed on one side of the spring (502). The buffer plate (503) is movably installed inside the hoisting track (1).

7. The double-beam, double-lifting-point bridge crane as described in claim 6, characterized in that, The buffer anti-collision component (5) also includes: A side plate (504) is fixedly installed on one side of the movable frame (201), and a buffer rubber column (505) is fixedly installed on one side of the side plate (504).

8. The double-beam, double-lifting-point bridge crane as described in claim 7, characterized in that, The buffer limiting component (6) includes: Side plate two (601) is fixedly installed on the other side of the movable frame (201). Rubber buffer column two (602) is fixedly installed on one side of side plate two (601). End plate (603) is fixedly installed at one end of the hoisting rail (1). Rubber buffer column three (604) is fixedly installed on one side of end plate (603).

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