Chain separating device of scraper conveyor

Abstract

The utility model discloses a scraper conveyor chain separating device which comprises a derailleur and a tongue plate, the tongue plate is fixed on a middle plate assembly of a headstock, a fixed limiting block is arranged below the tongue plate, the limiting block is provided with a limiting groove for limiting the derailleur and a clamping column installation groove, the derailleur is provided with an upper clamping groove and a lower clamping groove, and the upper clamping groove and the lower clamping groove are connected with the derailleur. An upper clamping column clamped with the upper clamping groove is fixed at the bottom of the tongue plate, and a lower clamping column clamped with the lower clamping groove is arranged in the clamping column mounting groove. The derailleur is limited and fixed through the upper clamping column on the tongue plate, the clamping column mounting groove in the limiting block and the lower clamping column, and it is guaranteed that the derailleur does not fall off. The derailleur is convenient to disassemble and assemble while meeting the normal use requirement, and the production efficiency is improved. While the normal operation of the scraper is ensured, the efficiency of replacing the derailleur is greatly improved, the manufacturing cost is reduced, the structure is simple, and the cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of mining scraper transport equipment, in particular to a chain splitting device for a scraper conveyor. Background Art

[0002] The chain splitting device of the scraper conveyor mainly includes a tongue plate and a chain derailleur. The chain derailleur is a key component for the scraper chain to correctly engage and disengage with the sprocket to ensure the smooth operation of the scraper conveyor. Its function is to prevent the chain link from being stuck in the sprocket groove and unable to disengage at the normal separation point when the sprocket assembly is disengaged from the meshing round link chain. The existing chain splitting device at the head and tail of the scraper conveyor has the disadvantages of complex structure and high manufacturing cost. Due to the use requirements of the sprocket assembly and the head and tail, the installation space of the chain splitting device is limited, resulting in the complicated installation and disassembly process of the tongue plate and the chain derailleur in the prior art, and the inconvenience of replacement, which consumes a lot of manpower and time, and reduces the coal mining efficiency. Utility Model Content

[0003] In order to overcome the above-mentioned deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a chain splitting device for a scraper conveyor, which has a simple structure and is easy to assemble and disassemble, thereby improving production efficiency.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0005] A chain splitting device for a scraper conveyor, comprising a chain derailleur and a tongue plate, characterized in that:

[0006] The tongue plate is fixed on the middle plate assembly of the machine head frame, a fixed limit block is arranged below the tongue plate, the limit block is provided with a limit groove and a clamping column installation groove of a limit derailleur, and the derailleur is provided with an upper clamping groove and a lower clamping groove,

[0007] An upper clamping column clamped with the upper clamping groove is fixed to the bottom of the tongue plate, and a lower clamping column clamped with the lower clamping groove is arranged in the clamping column installation groove.

[0008] Preferably, the upper clamping column and the lower clamping column are both configured as cylindrical clamping columns.

[0009] Preferably, the upper clamping groove and the lower clamping groove are configured as semicircular arc grooves.

[0010] Preferably, the tongue plate is fixedly connected to the middle plate assembly by bolts.

[0011] Preferably: a bolt installation groove is provided on the middle plate assembly, a bolt installation countersunk hole is provided on the tongue plate, the position of the bolt installation countersunk hole corresponds to the position of the bolt installation groove, and the bolt is installed in the bolt installation groove and the bolt installation countersunk hole.

[0012] Preferably, the derailleur comprises a connecting and mounting portion and a shifting portion, the connecting and mounting portion is provided with the upper clamping groove and the lower clamping groove, and the shifting portion is provided with an arc-shaped groove.

[0013] Preferably, the limit block is fixed to the middle plate assembly by welding.

[0014] After adopting the above technical solution, the utility model has the following beneficial effects:

[0015] The utility model provides a chain splitting device for a scraper conveyor, comprising a derailleur and a tongue plate, wherein the tongue plate is fixed on a middle plate assembly of a head frame, a fixed limit block is arranged below the tongue plate, the limit block is provided with a limit groove and a clamping column installation groove for a limit derailleur, the derailleur is provided with an upper clamping groove and a lower clamping groove, an upper clamping column clamped with the upper clamping groove is fixed at the bottom of the tongue plate, and a lower clamping column clamped with the lower clamping groove is arranged in the clamping column installation groove. The derailleur is limited and fixed by using the upper clamping column on the tongue plate, the clamping column installation groove on the limit block and the lower clamping column to ensure that the derailleur does not fall out. While the derailleur meets the normal use requirements, it is convenient to disassemble and assemble, thereby improving the production efficiency. The matching installation operation of the clamping column and the clamping groove is simple, which can greatly improve the efficiency of installing or removing the derailleur. The above structure can greatly shorten the time of replacing the derailleur, greatly improve the efficiency of replacing the derailleur while ensuring the normal operation of the scraper conveyor, and reduce the manufacturing cost.

[0016] In summary, the chain splitting device of the scraper conveyor of the utility model has a simple structure and is easy to assemble and disassemble, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the chain splitting device of the scraper conveyor of the utility model;

[0018] Figure 2 yes Figure 1 The schematic diagram of the structure with the derailleur removed;

[0019] Figure 3 yes Figure 1 Schematic diagram of the structure of the middle tongue plate;

[0020] Figure 4 yes Figure 1 The schematic diagram of the structure of the middle derailleur;

[0021] In the figure: 1. derailleur; 101. upper clamping groove; 102. lower clamping groove; 2. tongue plate; 201. bolt mounting countersunk hole; 3. upper clamping column; 4. limit block; 401. limit groove; 402. clamping column mounting groove; 5. middle plate assembly; 501. bolt mounting groove; 6. lower clamping column; 10. connecting mounting part; 11. toggle part. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below with reference to the accompanying drawings and embodiments.

[0023] The embodiment of the utility model discloses Figure 1 and Figure 2 The scraper conveyor chain splitting device shown in the figure comprises a derailleur 1 and a tongue plate 2. The tongue plate 2 is fixed on the middle plate assembly 5 of the head frame. A fixed limit block 4 is arranged below the tongue plate 2. The limit block 4 is provided with a limit groove 401 and a clamping column mounting groove 402 for limiting the derailleur 1. The derailleur 1 is provided with an upper clamping groove 101 and a lower clamping groove 102.

[0024] An upper clamping column 3 clamped with the upper clamping groove 101 is fixed to the bottom of the tongue plate 2 , and a lower clamping column 6 clamped with the lower clamping groove 102 is arranged in the clamping column installation groove 402 .

[0025] The upper clamping column 3 on the tongue plate 2, the clamping column installation groove 402 on the limit block 4 and the lower clamping column 6 are used to limit and fix the derailleur 1 to ensure that the derailleur 1 does not fall out. While meeting the normal use requirements, it is convenient to disassemble and assemble, and the production efficiency is improved. The matching installation operation of the clamping column and the clamping groove can greatly improve the efficiency of installing or removing the derailleur 1. The above structure can greatly shorten the time for replacing the derailleur 1. While ensuring the normal operation of the scraper, the efficiency of replacing the derailleur 1 is greatly improved, and the manufacturing cost is reduced.

[0026] In some embodiments, it is preferred that both the upper clamping column 3 and the lower clamping column 6 are configured as cylindrical clamping columns. The upper clamping groove 101 and the lower clamping groove 102 are configured as semicircular arc grooves.

[0027] In some embodiments, the tongue plate 2 is fixedly connected to the middle plate assembly 5 by bolts. The middle plate assembly 5 is provided with a bolt installation groove 501, and the tongue plate 2 is provided with a bolt installation countersunk hole 201. The position of the bolt installation countersunk hole 201 corresponds to the position of the bolt installation groove 501, and the bolt is installed in the bolt installation groove 501 and the bolt installation countersunk hole 201.

[0028] The chain derailleur 1 of the chain splitting device structure of the utility model is made of only one plate, thereby reducing the manufacturing cost and the coal mine production cost.

[0029] When the scraper is running, the tongue plate 2 is a vulnerable part, and the replacement cycle is relatively short and the replacement frequency is high. Therefore, bolts are used to fix the tongue plate 2 and the middle plate assembly 5, which is easy to disassemble and install. In addition, a bolt installation groove 501 is provided on the middle plate assembly 5 instead of a bolt hole. On the one hand, the bolt installation groove 501 has high strength, and on the other hand, the bolt can be replaced flexibly and quickly. Even if the bolt is rusted, the bolt can be quickly removed from the bolt installation groove 501. If the bolt installation groove 501 on the middle plate assembly 5 is replaced with a bolt hole, it is not easy to remove the bolt if it is rusted.

[0030] In some embodiments, the derailleur 1 includes a connecting and mounting portion 10 and a toggle portion 11. The connecting and mounting portion 10 has an upper clamping groove 101 and a lower clamping groove 102, and the toggle portion 11 has an arc-shaped groove. The arc-shaped groove of the toggle portion 11 is clad with wear-resistant material to extend its service life.

[0031] The scraper conveyor chain splitting device of the utility model has a simple and reasonable structure, saves manufacturing costs, and has the flexibility of disassembly and assembly, shortens the operation time of workers, saves labor costs, and improves production efficiency.

[0032] The technical solution of the utility model is described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Those skilled in the art should understand that various changes made thereto in form and details fall within the protection scope defined by the claims of the utility model.

Claims

1. A chain splitting device for a scraper conveyor, comprising a chain derailleur and a tongue plate, characterized in that: The tongue plate is fixed on the middle plate assembly of the machine head frame, a fixed limit block is arranged below the tongue plate, the limit block is provided with a limit groove and a clamping column installation groove of a limit derailleur, and the derailleur is provided with an upper clamping groove and a lower clamping groove, An upper clamping column clamped with the upper clamping groove is fixed to the bottom of the tongue plate, and a lower clamping column clamped with the lower clamping groove is arranged in the clamping column installation groove.

2. The chain splitting device for a scraper conveyor according to claim 1, characterized in that: The upper clamping column and the lower clamping column are both configured as cylindrical clamping columns.

3. The chain splitting device for a scraper conveyor according to claim 2, characterized in that: The upper clamping groove and the lower clamping groove are configured as semicircular arc grooves.

4. The chain splitting device for a scraper conveyor according to claim 1, characterized in that: The tongue plate is fixedly connected to the middle plate assembly by bolts.

5. The chain splitting device for a scraper conveyor according to claim 4, characterized in that: The middle plate assembly is provided with a bolt installation groove, the tongue plate is provided with a bolt installation countersunk hole, the position of the bolt installation countersunk hole corresponds to the position of the bolt installation groove, and the bolt is installed in the bolt installation groove and the bolt installation countersunk hole.

6. The chain splitting device for a scraper conveyor according to claim 1, characterized in that: The derailleur comprises a connecting and mounting portion and a shifting portion, the connecting and mounting portion is provided with the upper clamping groove and the lower clamping groove, and the shifting portion is provided with an arc-shaped groove.

7. The chain splitting device for a scraper conveyor according to claim 1, characterized in that: The limiting block is fixed to the middle plate assembly by welding.

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