Height-adjustable bridge crane

Abstract

The utility model provides a height-adjustable bridge crane which comprises a main beam bridge frame, positioning plates are arranged on two sides of the main beam bridge frame, a sliding shaft is arranged at the bottom of each positioning plate, the sliding shaft is connected between two fixing rings in a sliding mode, sliding strips are arranged on two sides of the sliding shaft, and the sliding strips are connected with guide grooves in a sliding mode. The lifting device is reasonable in design, the sliding shafts can be pushed to ascend and descend between the two supporting frames through the arranged hydraulic telescopic rods, the two sliding shafts can drive the main beam bridge to ascend and descend, the main beam bridge drives the trolley arranged in the main beam bridge to ascend and descend, the running stroke of the lifting device in the trolley is reduced, and the lifting efficiency is improved. And the steel cable in the trolley can be conveniently and rapidly retracted and released, so that rapid lifting and moving of an object are realized.

Description

Technical Field

[0001] The utility model mainly relates to the field of bridge cranes, and in particular to a height-adjustable bridge crane. Background Art

[0002] A bridge crane is a lifting device that is horizontally mounted above a workshop, warehouse, or material yard to lift materials. Because its two ends are located on tall concrete columns or metal brackets, it looks like a bridge. The bridge of a bridge crane runs longitudinally along the tracks laid on the elevated platforms on both sides, making full use of the space under the bridge to lift materials without being hindered by ground equipment. It is the most widely used and most numerous type of lifting machinery.

[0003] The inventor discovered the following defects during the operation of the specific embodiment:

[0004] When a bridge crane is moving an object, if the object is small, since the height of the main beam bridge of the bridge crane cannot be adjusted, the object's travel is long when the bridge crane is lifting the object, and the lifting time is long, resulting in a waste of time when moving and lifting the object.

[0005] It should be noted that the above contents belong to the technical cognition scope of the inventor. Since the technical contents in this field are vast and too complicated, the above contents of this application do not necessarily constitute prior art. Utility Model Content

[0006] 1. Technical problems to be solved by the utility model:

[0007] The utility model provides a height-adjustable bridge crane, which is used to solve the technical problems existing in the above-mentioned background technology.

[0008] 2. Technical solution:

[0009] To achieve the above object, the utility model provides a technical solution: an adjustable height bridge crane, comprising a bottom plate, support frames are arranged on both sides of the top of the bottom plate, fixing rings are arranged on both sides of the tops of the two support frames, guide grooves are opened on the inner sides of the support frames, and a hydraulic telescopic rod is arranged in the middle of the top of the bottom plate;

[0010] A main beam bridge frame, wherein positioning plates are arranged on both sides of the main beam bridge frame, a sliding shaft is arranged at the bottom of the positioning plate, the sliding shaft is slidably connected between the two fixing rings, and sliding bars are arranged on both sides of the sliding shaft, and the sliding bars are slidably connected to the guide grooves.

[0011] Furthermore, side plates are arranged on both sides of the bottom of the base plate, a transmission shaft is rotatably connected between the two side plates, and moving wheels are arranged on both sides of the transmission shaft.

[0012] Furthermore, a connecting shaft is provided at the bottom of the sliding shaft, and one end of the connecting shaft is connected to the output end of the hydraulic telescopic rod.

[0013] Furthermore, a fixing plate is provided on an outer wall of one side of the support frame, an auxiliary frame is provided on one side of the fixing plate, and the auxiliary frame is connected to the support frame.

[0014] Furthermore, a damper body is arranged on both sides of the top of the fixing plate, and a limiting groove is provided on the top of the damper body.

[0015] Furthermore, the inner wall of the limiting groove fits with the outer wall of the main beam bridge frame, the number of the main beam bridge frames is set to two, and the two main beam bridge frames are provided with trolleys.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0018] The utility model can push the sliding shaft to move up and down between the two support frames through the hydraulic telescopic rod, so that the two sliding shafts can drive the main beam bridge frame to move up and down, and the main beam bridge frame drives the trolley arranged inside to move up and down, thereby reducing the running stroke of the lifting device in the trolley, facilitating the rapid retraction and release of the steel cable in the trolley, thereby realizing the rapid lifting and moving of objects;

[0019] The damper body can provide support when the main beam bridge frame descends, so as to prevent the main beam bridge frame from tilting due to uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the support frame of the utility model;

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the main beam bridge frame of the utility model.

[0023] Reference numerals:

[0024] 1. Bottom plate; 2. Side plate; 3. Transmission shaft; 4. Moving wheel; 5. Support frame; 6. Hydraulic telescopic rod; 7. Connecting shaft; 8. Fixed ring; 9. Guide groove; 10. Auxiliary frame; 11. Fixed plate; 12. Damper body; 13. Limiting groove; 14. Main beam bridge; 15. Positioning plate; 16. Sliding shaft; 17. Sliding bar. DETAILED DESCRIPTION

[0025] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", "provided on" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example

[0029] See attached Figure 1-3 , an adjustable height bridge crane, comprising a bottom plate 1, support frames 5 are arranged on both sides of the top of the bottom plate 1, fixing rings 8 are arranged on both sides of the top of the two support frames 5, guide grooves 9 are opened on the inner sides of the support frames 5, and a hydraulic telescopic rod 6 is arranged in the middle of the top of the bottom plate 1;

[0030] A main beam bridge frame 14, positioning plates 15 are arranged on both sides of the main beam bridge frame 14, a sliding shaft 16 is arranged at the bottom of the positioning plate 15, the sliding shaft 16 is slidably connected between the two fixing rings 8, and sliding bars 17 are arranged on both sides of the sliding shaft 16, and the sliding bars 17 are slidably connected to the guide groove 9.

[0031] Furthermore, side plates 2 are provided on both sides of the bottom of the base plate 1, and a transmission shaft 3 is rotatably connected between the two side plates 2. Moving wheels 4 are provided on both sides of the transmission shaft 3. When the motor is started, the motor drives the transmission shaft 3 to rotate, and the transmission shaft 3 drives the moving wheels 4 to rotate, so that the moving wheels 4 can move on the surface of the rail, thereby driving the bridge crane to move, which is convenient for moving objects.

[0032] Furthermore, a connecting shaft 7 is provided at the bottom of the sliding shaft 16, and one end of the connecting shaft 7 is connected to the output end of the hydraulic telescopic rod 6. When the hydraulic telescopic rod 6 is started, the hydraulic telescopic rod 6 drives the sliding shaft 16 to rise and fall through the connecting shaft 7, so that the sliding shaft 16 drives the main beam bridge frame 14 to rise and fall, which is convenient for adjusting the height of the trolley in the main beam bridge frame 14.

[0033] Furthermore, a fixing plate 11 is provided on the outer wall of one side of the support frame 5, and an auxiliary frame 10 is provided on one side of the fixing plate 11, and the auxiliary frame 10 is connected to the support frame 5, and a damper body 12 is provided on both sides of the top of the fixing plate 11, and a limiting groove 13 is opened on the top of the damper body 12, and the inner wall of the limiting groove 13 is fitted with the outer wall of the main beam bridge 14, and the number of the main beam bridges 14 is set to two, and the two main beam bridges 14 are provided with trolleys. During the downward movement of the main beam bridge 14, the top of the limiting groove 13 at the bottom of the main beam bridge 14 is fitted, and the main beam bridge 14 continues to move downward, and the main beam bridge 14 squeezes the damper body 12, and the damper body 12 applies a reverse force to the main beam bridge 14, so that both sides of the main beam bridge 14 can be supported by the damper body 12, thereby maintaining the stability of the main beam bridge 14 after being subjected to force.

[0034] In this embodiment, when the main beam bridge frame 14 needs to be lifted or lowered, the hydraulic telescopic rod 6 is started, and the hydraulic telescopic rod 6 drives the sliding shaft 16 to slide between the fixed ring 8 and the support frame 5 through the connecting shaft 7, and the sliding bar 17 slides on the inner wall of the guide groove 9 to maintain stability, so that the main beam bridge frame 14 can be lifted or lowered. When the main beam bridge frame 14 descends, the bottom of the main beam bridge frame 14 fits with the limit groove 13, so that the main beam bridge frame 14 squeezes the damper body 12 during the descent process, and then the damper body 12 applies a reverse force to the main beam bridge frame 14 to support the main beam bridge frame 14;

[0035] The object is then lifted or lowered by the trolley. When the object needs to be moved, the motor is started, the motor drives the transmission shaft 3 to rotate, and the transmission shaft 3 drives the moving wheel 4 to rotate, so that the moving wheel 4 moves on the rails, thereby driving the bridge crane to move.

[0036] The above-described embodiments only express a certain implementation method of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the patent of the utility model shall be based on the attached claims.

Claims

1. An adjustable height bridge crane, characterized in that: include A bottom plate (1), support frames (5) are arranged on both sides of the top of the bottom plate (1), fixing rings (8) are arranged on both sides of the top of the two support frames (5), guide grooves (9) are arranged on the inner sides of the support frames (5), and a hydraulic telescopic rod (6) is arranged in the middle of the top of the bottom plate (1); A main beam bridge frame (14), wherein positioning plates (15) are arranged on both sides of the main beam bridge frame (14), a sliding shaft (16) is arranged at the bottom of the positioning plate (15), the sliding shaft (16) is slidably connected between the two fixing rings (8), and sliding bars (17) are arranged on both sides of the sliding shaft (16), and the sliding bars (17) are slidably connected to the guide groove (9).

2. The height-adjustable bridge crane according to claim 1, characterized in that: Side plates (2) are arranged on both sides of the bottom of the base plate (1), a transmission shaft (3) is rotatably connected between the two side plates (2), and moving wheels (4) are arranged on both sides of the transmission shaft (3).

3. The height-adjustable bridge crane according to claim 1, characterized in that: A connecting shaft (7) is provided at the bottom of the sliding shaft (16), and one end of the connecting shaft (7) is connected to the output end of the hydraulic telescopic rod (6).

4. The height-adjustable bridge crane according to claim 1, characterized in that: A fixing plate (11) is provided on one side outer wall of the support frame (5), an auxiliary frame (10) is provided on one side of the fixing plate (11), and the auxiliary frame (10) is connected to the support frame (5).

5. The height-adjustable bridge crane according to claim 4, characterized in that: A damper body (12) is arranged on both sides of the top of the fixing plate (11), and a limiting groove (13) is provided on the top of the damper body (12).

6. The height-adjustable bridge crane according to claim 5, characterized in that: The inner wall of the limiting groove (13) is fitted with the outer wall of the main beam bridge frame (14), the number of the main beam bridge frames (14) is set to two, and the two main beam bridge frames (14) are provided with trolleys.

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