Monorail crane track connection device

Abstract

The utility model belongs to the rail connecting technical field, concretely relates to a monorail crane rail connecting device. The utility model device includes lower guide rail section, upper guide rail section and axle pin, the last end of lower guide rail section is provided with the connecting single ear with axle pin hole, the last end of upper guide rail section is provided with the double -eared structure with axle pin hole, the axle pin is used for penetrating the axle pin hole on double -eared structure and connecting single ear, realizes the connection fixed. When connecting the rail, insert the connecting single ear into the double -eared structure slot, then pass into the axle pin, and the utility model of the prior art of time -consuming that needs to adopt the tool to tighten the bolt one by one can, simple operation of the utility model realizes the quick assembly of tool -free, improves installation efficiency, the utility model still disperses through cambered surface stress, improves the anti -loosening ability and firm reliability.

Description

Technical Field

[0001] This utility model belongs to the field of track connection technology, specifically relating to a track connection device for a monorail crane locomotive. Background Technology

[0002] In the underground coal mine working environment, short-distance transportation related to the advanced support of the upper and lower end roadways of the mining face is crucial. Traditional transportation methods, such as winch transportation, are limited in operation under complex roadway conditions, and the wire ropes are prone to wear and breakage, posing safety hazards. Therefore, they have many limitations in terms of transportation efficiency, safety, and adaptability. Monorail cranes are devices that utilize suspended rails, with rollers driven by friction along the rail vertical plates. With their significant advantages such as high efficiency and safety, monorail cranes can effectively solve many problems in rail material transportation at the tunneling face. However, the first step in using a monorail crane is to complete the installation and connection of the crane rails. In existing technologies, the device used for rail connection usually consists of a bracket and a locking device. The locking device is fixedly installed on the bracket. When connecting the rails, the two rail sections are joined together on the bracket, and then the locking device locks the two rail sections together. Chinese patent CN222042424U discloses a pneumatic monorail connection device for connecting old and new rails. A lifting mechanism uses a lifting plate to drive a locking mechanism to adjust the height, and then the locking mechanism locks the old and new rails together. This device is suitable for connecting rails at different heights. In the aforementioned prior art, rails are connected by bolts, requiring specific tools to align and tighten each bolt on-site, making the installation process cumbersome and time-consuming. Furthermore, the connection's strength depends on the bolt preload, making it prone to loosening due to vibration. This cannot meet the practical engineering needs of coal mine roadways where space is limited, frequent disassembly and assembly are required, and high connection strength is demanded. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the technical problem to be solved by this utility model is to provide a monorail locomotive track connection device that achieves tool-free, quick assembly and a firm and reliable track connection.

[0004] The present invention adopts the following technical solution:

[0005] A monorail locomotive track connection device includes a lower guide rail section, an upper guide rail section, and a pivot pin;

[0006] The lower guide rail section is provided with a connecting ear at its end, which is a raised structure with an arc-shaped guide surface. The connecting ear is provided with a single ear shaft pin hole.

[0007] The upper guide rail section is provided with a double-ear structure at its end, which consists of two symmetrically distributed arc-shaped plates. A double-ear slot matching the connecting single ear is formed between the two arc-shaped plates. The double-ear structure is provided with double-ear shaft pin holes.

[0008] The axle pin is used to penetrate the axle pin hole on the double-ear structure and connect to the axle pin hole on the single ear to achieve connection and fixation.

[0009] Preferably, the root portion of the connecting single-ear and double-ear structures is fixed to the guide rail body of the lower guide rail section and the upper guide rail section respectively by welding or integral molding process to ensure connection strength.

[0010] Preferably, the tail of the shaft pin is provided with a pin structure to prevent the shaft pin from falling off due to vibration during operation.

[0011] The working principle of this technical solution is as follows:

[0012] (1) Positioning relationship:

[0013] The single-ear arc surface of the lower guide rail section complements the double-ear arc surface of the upper guide rail section. During installation, the double ears slide in along the arc-shaped guide surface of the single ear, automatically completing the horizontal alignment and avoiding manual alignment errors. In the vertical direction, after the single ear is inserted into the double-ear slot, its root contacts the bottom of the double ears, limiting vertical displacement.

[0014] (2) Locking relationship:

[0015] The axle pin passes through the pin holes on both the double and single ears, securing the connection between the single and double ears; the tail of the axle pin is designed with a pin insertion structure to prevent the axle pin from falling off due to vibration during operation.

[0016] The beneficial effects obtained by adopting the above technical solution are as follows:

[0017] (1) The present invention provides a single rail crane locomotive track connection device. During installation, the single connecting ear is inserted into the double ear structure slot, pushed tight and then lowered, and then the shaft pin is inserted. Compared with the time-consuming existing technology that requires manual alignment and tooling to tighten the bolts one by one, the three simple operations of the present invention achieve tool-free rapid assembly and improve installation efficiency.

[0018] (2) The connection strength of the existing technology depends on the bolt preload, which is prone to loosening due to vibration. However, the present invention improves the anti-loosening ability and the firmness and reliability by dispersing the arc surface stress and fixing the shaft pin.

[0019] (3) Existing technologies require manual calibration for alignment, while this utility model adopts an automatic arc-shaped guide, which improves the alignment accuracy. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure and installation of the monorail crane track connection device of this utility model.

[0021] The diagram is labeled as follows: 1. Lower guide rail section; 2. Upper guide rail section; 3. Shaft pin; 11. Connecting single ear; 111. Single ear shaft pin hole; 21. Double ear structure; 22. Double ear slot; 211. Double ear shaft pin hole; 31. Insert pin structure. Detailed Implementation

[0022] The technical solution of this utility model will now be described more clearly and completely with reference to the accompanying drawings.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of this utility model.

[0024] This utility model discloses a monorail locomotive track connection device, comprising a lower guide rail section 1, an upper guide rail section 2, and a shaft pin 3. The lower guide rail section 1 has a connecting ear 11 at its end, which is a raised structure with an arc-shaped guide surface. The connecting ear 11 has a single ear pin hole 111. The upper guide rail section 2 has a double ear structure 21 at its end, which consists of two symmetrically distributed arc-shaped plates. A double ear slot 22 matching the connecting ear 11 is formed between the two arc-shaped plates. The double ear structure 21 has a double ear pin hole 211. The roots of the connecting ear 11 and the double ear structure 21 are fixed to the guide rail body by welding or integral molding to ensure connection strength. The pin 3 is used to penetrate the double ear pin hole 211 on the double ear structure 21 and the single ear pin hole 111 on the connecting ear 11 to fasten the connection between the single ear and the double ear. The tail of the pin 3 is provided with a pin structure 31 to prevent the pin from falling off due to vibration during operation.

[0025] Workflow:

[0026] (1) Installation phase, such as Figure 1 As shown:

[0027] Insertion operation: Lift up the upper guide rail section 2 so that the double ear slot 22 is aligned with the connecting single ear 11 of the lower guide rail section 1, and slowly push it in along the arc-shaped guide surface. The connecting single ear 11 slides into the double ear structure 21 to complete the initial positioning.

[0028] Pushing and dropping: Continue to apply pressure to make the root of the single ear 11 and the bottom of the double ear structure 21 come into close contact. At this time, the single ear shaft pin hole 111 and the double ear shaft pin hole 211 are aligned, creating conditions for the insertion of the shaft pin 3.

[0029] Shaft pin locking: Insert the shaft pin 3 through the double-ear shaft pin hole 211 on the outside of the double-ear structure 21 until it completely penetrates the single-ear shaft pin hole 111, and insert the pin structure 31 at the tail of the shaft pin to complete the connection.

[0030] (2) Operation phase:

[0031] The arc-shaped structure at the connection joint disperses stress through arc-shaped contact, avoiding deformation caused by localized stress concentration;

[0032] The axle pin 3 and the latch structure 31 secure the connection between the single ear and the double ear, ensuring that the guide rail is firmly connected during the operation of the monorail crane (such as lifting and moving) without the risk of loosening.

[0033] (3) Disassembly stage:

[0034] Remove the pin structure 31, tap the tail of the shaft pin 3 to make it exit the double-ear shaft pin hole 211 and the single-ear shaft pin hole 111, and release the locking state; lift the upper guide rail section 2 upward, and connect the single ear 11 to slide out along the arc surface of the double-ear structure 21 to achieve rapid separation.

Claims

1. A monorail crane track connection device, characterized in that, It includes a lower guide rail section (1), an upper guide rail section (2), and a pivot pin (3); The lower guide rail section (1) is provided with a connecting ear (11) at its end. The connecting ear (11) is a raised structure with an arc-shaped guide surface and has a single ear shaft pin hole (111). The upper guide rail section (2) is provided with a double ear structure (21) at its end, which consists of two symmetrically distributed arc plates. A double ear slot (22) matching the connecting single ear (11) is formed between the two arc plates. The double ear structure (21) is provided with a double ear shaft pin hole (211). The pin (3) is used to penetrate the double-ear pin hole (211) on the double-ear structure (21) and connect the single-ear pin hole (111) on the single ear (11).

2. The track connection device according to claim 1, characterized in that, The root of the connecting single ear (11) and double ear structure (21) is fixed to the guide rail body of the lower guide rail section (1) and the upper guide rail section (2) respectively by welding or integral molding process.

3. The track connection device according to claim 1 or 2, characterized in that, The tail of the axle pin (3) is provided with a pin structure (31) to prevent the axle pin from falling off due to vibration during operation.

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