Monorail hoist lifting beam

Abstract

The utility model relates to a monorail hoist beam, including the parallel arrangement of main beam body and bearing longitudinal beam up and down, the both ends of main beam body are equipped with bearing trolley, two hoist pulley blocks are installed on the main beam body, the hoisting chains of two hoist pulley blocks are connected with the both ends of bearing longitudinal beam respectively vertically, two adjusting cross beams are fixedly connected on bearing longitudinal beam, the middle part of adjusting cross beam is fixedly connected with bearing longitudinal beam, and the both ends of adjusting cross beam are all connected with lifting hooks, the main beam body structure design of the utility model is simple, and the weight is light, the cross section size is compact, compared with the hoist beam of same tonnage height, the beam body height reduces about 300mm, and the passing performance is improved significantly. In the beam body structure, two adjusting cross beams are arranged, and multiple adjusting nodes are configured, so that the distance between lifting points is adjusted conveniently, the chain outlet of hoist pulley block is vertical downward, the hoisting chain is connected with bearing longitudinal beam directly, and there is no chain wheel transition in the middle, thereby the number of machined parts is reduced greatly, and the manufacturing cost is reduced effectively.

Description

Technical Field

[0001] This utility model relates to the field of monorail hoisting technology, and in particular to the field of monorail hoisting beams, specifically a monorail hoisting beam. Background Technology

[0002] Mining monorail auxiliary transportation systems are mainly used for transporting equipment, personnel, and materials underground in coal mines. Monorail locomotives are equipped with lifting beams of different tonnages to meet the transportation needs of various materials.

[0003] Monorail lifting beams come in a variety of structural forms, including single-beam, double-beam, and multi-beam structures. A typical single-beam lifting beam structure includes... Figure 6 As shown, because the lifting point is far from the load-bearing trolley, the beam needs to withstand a large load, thus requiring a larger beam to meet the strength requirements for heavy-duty transportation. This design typically results in a thicker beam, and the increased beam cross-section leads to increased weight and reduced maneuverability, making it unsuitable for use in low-ceilinged tunnels.

[0004] And as Figure 7 As shown, in a conventional single-beam structure design, the lifting motor is installed below the load-bearing trolley, and the chain outlet of the lifting hoist is parallel to the track. The lifting chain needs to be redirected from horizontal to vertical via a reversing sprocket to achieve the lifting operation. The chain reversing mechanism is a machined component, requiring high strength and precision, making it difficult to manufacture and relatively expensive. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a monorail lifting beam that is simple in structure, lightweight, low in beam height, and low in manufacturing cost, thus solving the problems of large beam cross-sectional dimensions, heavy weight, and high manufacturing cost of current single-beam lifting beams.

[0006] This utility model is achieved through the following technical solution: a monorail lifting beam is provided, comprising a main beam body and a load-bearing longitudinal beam arranged in parallel vertically. The two ends of the main beam body are equipped with load-bearing trolleys, and two lifting hoists are mounted on the main beam body. The lifting chains of the two lifting hoists are vertically connected to the two ends of the load-bearing longitudinal beam, and at least two adjusting crossbeams are fixedly connected to the load-bearing longitudinal beam. The middle part of the adjusting crossbeam is fixedly connected to the load-bearing longitudinal beam, and hooks are connected to both ends of the adjusting crossbeam.

[0007] In this design, the trolleys at both ends of the main beam travel on tracks, thus driving the main beam along the tracks. The lifting chains of the two hoists drive the longitudinal beams to rise and fall. The equipment to be hoisted is lifted by adjusting the hooks at both ends of the crossbeam. Therefore, a total of four hooks are used to lift the equipment. Since the lifting chains of the hoists are vertically downward, they are directly connected to the longitudinal beams, which reduces the load on the main beam and thus reduces the cross-sectional dimensions of the main beam. Furthermore, the lifting chains are directly connected to the longitudinal beams without the need for intermediate sprockets.

[0008] As an optimization, an adjusting sleeve is fixedly connected to the middle of the adjusting crossbeam. The adjusting sleeve is fitted onto the supporting longitudinal beam, which has multiple positioning holes arranged in a front-to-back pattern. A pin passes through the adjusting sleeve and the positioning holes. In this design, the adjusting crossbeams achieve front-to-back position adjustment on the supporting longitudinal beam via the adjusting sleeve. After adjustment, they are fixed by the pin, thereby adjusting the distance between the hooks of the two adjusting crossbeams to meet the transportation needs of equipment of different lengths.

[0009] As an optimization, a groove is formed on the lower end face of the adjusting beam, and the adjusting sleeve is welded into the groove. In this solution, the adjusting sleeve is welded into the groove, thereby reducing the total height space occupied by the adjusting beam and the adjusting sleeve.

[0010] As an optimization, both the adjusting sleeve and the load-bearing longitudinal beam are rectangular tubes, thereby achieving a sliding connection for the adjusting sleeve.

[0011] As an optimization, chain pockets are installed at both ends of the main beam. In this design, when lifting materials, the chain between the load-bearing longitudinal beam and the hoist becomes shorter, and the excess chain falls from the other chain outlet of the hoist into the inside of the chain pocket for storage.

[0012] As an optimization, the bottom of the chain pouch is V-shaped. This ensures that the chain is automatically centered and prevents the chain pouch's center of gravity from shifting.

[0013] As an optimization, the distance between the two hoists is less than the distance between the two carrying trolleys. The lower end face of the main beam is provided with a receiving groove, and the hoists are installed within this groove. In this design, the hoists and carrying trolleys are staggered, thus reducing the height distance between them and lowering the overall height of the lifting beam.

[0014] As an optimization, the upper surfaces at both ends of the supporting longitudinal beam are chamfered. This increases the upward lifting distance of the supporting longitudinal beam and prevents interference between the ends of the supporting longitudinal beam and the main body of the hoist after it rises.

[0015] The beneficial effects of this utility model are as follows: The monorail lifting beam of this utility model has a simple main beam structure design, is lightweight, and has a compact cross-sectional dimension. Compared with lifting beams of the same tonnage and height, its beam height is reduced by approximately 300mm, significantly improving its passability. The beam structure includes two adjusting crossbeams and multiple adjustment points for easy adjustment of the lifting point spacing. The chain outlet of the lifting hoist is vertically downward, and the lifting chain is directly connected to the supporting longitudinal beam without the need for a sprocket transition, thereby greatly reducing the number of processed parts and effectively lowering manufacturing costs. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the end of the present invention; Figure 3 This is a side view of the present invention; Figure 4 This utility model Figure 3 Enlarged view of section A in the middle; Figure 5 This is a schematic diagram of the structure of the load-bearing longitudinal beam and the adjusting crossbeam of this utility model; Figure 6 This is a structural diagram of an existing single-beam lifting beam. Figure 7 A schematic diagram showing the reversal of the lifting chain of an existing single-beam structure lifting beam; As shown in the figure: 1. Carrying trolley, 2. Lifting hoist, 3. Main beam, 4. Chain bag, 5. Track, 6. Carrying longitudinal beam, 7. Adjusting crossbeam, 8. Hook, 9. Chain fixing bolt, 10. Adjusting sleeve. Detailed Implementation

[0017] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0018] like Figures 1-7 As shown, a monorail lifting beam of this utility model includes a main beam 3 and a load-bearing longitudinal beam 6 arranged in parallel. The length direction of the main beam 3 is consistent with the direction of travel, and the main beam is located directly below the track 5. Load-bearing trolleys 1 are installed at both ends of the main beam 3. The load-bearing trolleys 1 are installed at the upper ends of both ends of the main beam 3. The lifting beam moves by the movement of the load-bearing trolleys 1 on the track 5.

[0019] Two hoists 2 are mounted on the main beam 3. The distance between the two hoists 2 is less than the distance between the two carrying trolleys 1. Therefore, the hoists 2 are located inside the carrying trolleys 1, thereby achieving misalignment in the length direction. The main beam 3 protrudes upward at the position of the hoists 2, and the lower end face of the main beam 3 is provided with a receiving groove. The hoists 2 are installed in the receiving groove, which can reduce the height distance between the hoists and the carrying trolleys and reduce the overall height of the lifting beam.

[0020] The lifting chains of the hoist 2 are vertically downward, and the lifting chains of the two hoists 2 are located on the side where the two hoists 2 are close to each other. The lifting chains of the two hoists 2 are vertically connected to both ends of the bearing longitudinal beam 6. In this embodiment, the lower end of the lifting chain is connected to the end of the bearing longitudinal beam 6 through chain fixing bolts.

[0021] In this application, the lifting chain is directly connected to the bearing longitudinal beam without the need for a sprocket for transition and reversal. In order to increase the lifting height of the bearing longitudinal beam 6, the upper end faces of both ends of the bearing longitudinal beam 6 are chamfered. After the end of the bearing longitudinal beam rises, it interferes with the main body of the lifting hoist.

[0022] The main beam 3 is equipped with chain pockets 4 at both ends. The chain pockets 4 are located on the side of the hoist 2 away from the hoisting chain. When lifting materials, the chain between the supporting longitudinal beam and the hoist becomes shorter, and the excess chain falls from the other chain outlet of the hoist into the inside of the chain pocket for storage. The bottom of the chain pouch 4 is V-shaped to ensure the chain is automatically centered and to prevent the pouch's center of gravity from shifting. The bottom of the chain pouch is made of [material name missing] or steel. Figure 3 As shown, the chain pocket is installed with an inclined design where the outer side is lower and the inner side is higher, which reduces the friction coefficient between the chain and the chain pocket and prevents the chain from piling up near the chain exit. At least two adjusting crossbeams 7 are fixedly connected to the supporting longitudinal beam 6. In this embodiment, there are two adjusting crossbeams 7. The adjusting crossbeams 7 are horizontally arranged and perpendicular to the supporting longitudinal beam 6. The middle part of the adjusting crossbeam 7 is fixedly connected to the supporting longitudinal beam 6, and both ends of the adjusting crossbeam 7 are connected to hooks 8 by chains. Therefore, hoisting is achieved by using four hooks 8.

[0023] In this embodiment, the adjusting beam 7 can be adjusted back and forth on the bearing longitudinal beam 6. Specifically, an adjusting sleeve 10 is fixedly connected to the middle of the adjusting beam 7. The adjusting sleeve 10 is sleeved on the bearing longitudinal beam 6. In this embodiment, both the adjusting sleeve 10 and the bearing longitudinal beam 6 are rectangular tubes, thereby realizing the sliding guidance of the adjusting sleeve 10 on the bearing longitudinal beam 6.

[0024] In order to reduce the total height occupied by the adjusting beam 7 and the adjusting sleeve 10, a groove is opened on the lower end face of the adjusting beam 7, and the adjusting sleeve 10 is welded into the groove.

[0025] In order to fix the position of the adjusting beam 7 after adjustment, multiple positioning holes are arranged in the front and rear on the bearing longitudinal beam 6. The pin passes through the adjusting sleeve 10 and the positioning holes, thereby fixing the adjusting sleeve 10 and thus fixing the position of the adjusting beam 7 to meet the transportation needs of materials of different lengths.

[0026] How to use this utility model: The trolleys 1 at both ends of the main beam 3 travel on the track 5, thereby driving the main beam 3 to travel along the track 5. The lifting chains of the two hoists 2 drive the longitudinal beam 6 to rise and fall. The equipment to be hoisted is hoisted by adjusting the hooks at both ends of the crossbeam 7. Therefore, a total of 4 hooks are used to hoist the equipment. The crossbeam 7 is adjusted in front and back position on the longitudinal beam 6 through the adjusting sleeve 10. After the adjustment is completed, it is fixed by the pin shaft, thereby adjusting the distance between the hooks between the two adjusting crossbeams 7 to meet the transportation needs of equipment of different lengths.

[0027] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A monorail lifting beam, characterized in that: It includes a main beam (3) arranged in parallel vertically and a load-bearing longitudinal beam (6). The two ends of the main beam (3) are equipped with load-bearing trolleys (1). The main beam (3) is equipped with two hoists (2). The lifting chains of the two hoists (2) are vertically connected to the two ends of the load-bearing longitudinal beam (6). At least two adjusting beams (7) are fixedly connected to the load-bearing longitudinal beam (6). The middle part of the adjusting beams (7) is fixedly connected to the load-bearing longitudinal beam (6). Both ends of the adjusting beams (7) are connected with hooks (8).

2. The monorail lifting beam according to claim 1, characterized in that: An adjusting sleeve (10) is fixedly connected to the middle of the adjusting beam (7). The adjusting sleeve (10) is sleeved on the bearing longitudinal beam (6). The bearing longitudinal beam (6) has multiple positioning holes arranged in front and behind. The pin passes through the adjusting sleeve (10) and the positioning holes.

3. A monorail lifting beam according to claim 2, characterized in that: The lower end face of the adjusting beam (7) has a groove, and the adjusting sleeve (10) is welded into the groove.

4. A monorail lifting beam according to claim 2, characterized in that: Both the adjusting sleeve (10) and the bearing longitudinal beam (6) are rectangular tubes.

5. A monorail lifting beam according to claim 1, characterized in that: The main beam (3) is equipped with chain pockets (4) at both ends.

6. A monorail lifting beam according to claim 5, characterized in that: The bottom of the chain pocket (4) is V-shaped.

7. A monorail lifting beam according to claim 1, characterized in that: The distance between the two hoists (2) is less than the distance between the two trolleys (1). The lower end face of the main beam (3) is provided with a receiving groove, and the hoist (2) is installed in the receiving groove.

8. A monorail lifting beam according to claim 1, characterized in that: The upper surfaces at both ends of the load-bearing longitudinal beam (6) are chamfered.

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