Mining anti-knotting chain ring

Abstract

The utility model relates to a mining anti-knotting chain ring, which comprises a chain ring and an anti-knotting assembly, the chain ring comprises a left-right symmetrical arc part and a vertically symmetrical straight edge part, the anti-knotting assembly comprises an upper ejection piece, a lower ejection piece and an expansion sleeve, the upper ejection piece is arranged at the top end of the expansion sleeve in a telescopic manner, and the lower ejection piece is arranged at the bottom end of the expansion sleeve in a telescopic manner. The top end of the upper ejecting piece abuts against the upper side straight edge part, and the bottom end of the lower ejecting piece abuts against the lower side straight edge part, so that the knotting prevention assembly is installed in the chain ring. By means of the anti-knotting assembly installed in the chain ring, the chain ring installed at one end of the anti-knotting chain ring for the mine is prevented from entering the other end of the anti-knotting chain ring for the mine, two chain rings installed on the same anti-knotting chain ring for the mine are prevented from being knotted, and the accuracy of length measurement of stacked chains is achieved. And the measured chain can be well matched when being mounted in equipment, so that the inconvenience that the chain is loosened due to lap joint and needs to be re-mounted after being cut short is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of chains, in particular to an anti-knotting chain ring for mining. Background Art

[0002] In mining conveying equipment, the scraper chain and the scraper are assembled and installed on the scraper to transport coal blocks. In the production and manufacturing process of mining chains, due to the limited space and the long length of the chain, the chain is often stored in a stacked manner. When measuring the length and pairing, the staff needs to first flatten the stacked chain, and then fix the two ends of the flattened chain on the two ends of the chain stretching machine, and turn on the chain stretching machine to straighten the chain to ensure the accuracy of the chain length measurement. However, the stacked chain will have multiple knots. Even if the staff checks it many times, there will still be one or several chain links with knots. This kind of knotted chain causes the measured length of the chain to be less than the longest length of the chain. If there are multiple knots, the cumulative error of the measured length of the chain will be greater, resulting in the long chain being installed in the equipment and the chain often being loose during use. Utility Model Content

[0003] In view of this, it is necessary to provide a mining anti-knot chain ring to solve the problem in the prior art that the measured length of the chain is smaller than the fully extended length due to some chain rings being knotted together, resulting in loose chains when installed in the equipment.

[0004] A mine anti-knot chain ring comprises a chain ring and an anti-knot assembly, the chain ring comprises a left-right symmetrical arc portion and a top-bottom symmetrical straight edge portion, the anti-knot assembly comprises an upper top piece, a lower top piece and an expansion sleeve, the upper top piece is arranged at the top end of the expansion sleeve in a telescopic manner, the lower top piece is arranged at the bottom end of the expansion sleeve in a telescopic manner, the top end of the upper top piece abuts against the upper straight edge portion, and the bottom end of the lower top piece abuts against the lower straight edge portion, so that the anti-knot assembly is installed in the chain ring.

[0005] Preferably, the upper top piece includes a first clamping portion and a first threaded docking portion, the lower top piece includes a second clamping portion and a second threaded docking portion, the external threads of the first threaded docking portion and the external threads of the second threaded docking portion are directional threads to each other; the expansion sleeve is provided with a first internal thread and a second internal thread, the first internal thread and the second internal thread are directional threads to each other, the first threaded docking portion is meshed with the first internal thread, and the second threaded docking portion is meshed with the second internal thread, and when the expansion sleeve rotates relative to the upper top piece and the lower top piece, the upper top piece and the lower top piece extend out of or retract from the expansion sleeve.

[0006] Preferably, a first concave snap-in socket is provided at the top end of the first snap-in portion, and a second concave snap-in socket is provided at the top end of the second snap-in portion. The first concave snap-in socket and the second concave snap-in socket are respectively snap-fitted with two straight sides of the chain ring.

[0007] Preferably, the upper top piece also includes a first connecting portion, which is located between the first clamping portion and the first threaded docking portion, the first connecting portion is in the shape of a cone, the first clamping portion is arranged on the wide side of the first connecting portion, and the first threaded docking portion is arranged on the narrow side of the first connecting portion; the lower top piece also includes a second connecting portion, which is located between the second clamping portion and the second threaded docking portion, the second connecting portion is in the shape of a cone, the second clamping portion is arranged on the wide side of the second connecting portion, and the second threaded docking portion is arranged on the narrow side of the second connecting portion.

[0008] Preferably, a through hole is provided in the middle of the expansion sleeve, and a torque tool can be inserted into the through hole to facilitate the rotation of the expansion sleeve.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: by installing an anti-knot component in the chain link, a chain link installed at one end of the mining anti-knot chain link is prevented from entering the other end of the mining anti-knot chain link, thereby avoiding knotting of two chain links installed on the same mining anti-knot chain link, thereby achieving the accuracy of measuring the length of the stacked chains, and enabling the measured chains to be better matched when installed in the equipment, thereby avoiding the inconvenience of looseness caused by chain overlap and the need to shorten and reinstall. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a three-dimensional diagram of the utility model.

[0011] Figure 2 A perspective view of the anti-tangling component.

[0012] Figure 3 The right side view of the anti-tangling component.

[0013] Figure 4 for Figure 3 Section view at AA in the middle.

[0014] Figure 5 1 and 1 are three connection state diagrams of the utility model.

[0015] In the figure: chain link 10, arc portion 11, straight edge portion 12, anti-knot assembly 20, upper top piece 21, first clamping portion 211, first threaded docking portion 212, first concave bayonet 213, first connecting portion 214, lower top piece 22, second clamping portion 221, second threaded docking portion 222, second concave bayonet 223, second connecting portion 224, expansion sleeve 23, first internal thread 231, second internal thread 232, through hole 233. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] See also Figures 1 to 5 The anti-knotting chain ring for mining includes a chain ring 10 and an anti-knotting assembly 20. The chain ring 10 includes a left-right symmetrical arc portion 11 and a top-bottom symmetrical straight edge portion 12. The anti-knotting assembly 20 includes an upper top piece 21, a lower top piece 22 and an expansion sleeve 23. The upper top piece 21 is arranged at the top end of the expansion sleeve 23 in a telescopic manner, and the lower top piece 22 is arranged at the bottom end of the expansion sleeve 23 in a telescopic manner. The top end of the upper top piece 21 abuts against the upper straight edge portion 12, and the bottom end of the lower top piece 22 abuts against the lower straight edge portion 12 to install the anti-knotting assembly 20 in the chain ring 10. By installing an anti-knot component 20 in the chain link 10, the chain link 10 installed at one end of the mining anti-knot chain link is prevented from entering the other end of the mining anti-knot chain link, thereby preventing the two chain links 10 installed in the same mining anti-knot chain link from getting knotted, thereby achieving accuracy in measuring the length of the stacked chains, and enabling the measured chains to be better matched when installed in the equipment, thereby avoiding the inconvenience of looseness caused by chain overlap and the need to shorten and reinstall.

[0018] Furthermore, the upper top piece 21 includes a first clamping portion 211 and a first threaded docking portion 212, and the lower top piece 22 includes a second clamping portion 221 and a second threaded docking portion 222, and the external threads of the first threaded docking portion 212 and the external threads of the second threaded docking portion 222 are directional threads to each other; the expansion sleeve 23 is provided with a first internal thread 231 and a second internal thread 232, and the first internal thread 231 and the second internal thread 232 are directional threads to each other, the first threaded docking portion 212 and the first internal thread 231 are meshed, and the second threaded docking portion 222 and the second internal thread 232 are meshed, and when the expansion sleeve 23 rotates relative to the upper top piece 21 and the lower top piece 22, the upper top piece 21 and the lower top piece 22 extend out or retract from the expansion sleeve 23.

[0019] Furthermore, a first concave snap-in socket 213 is disposed at the top of the first snap-in portion 211 , and a second concave snap-in socket 223 is disposed at the top of the second snap-in portion 221 . The first concave snap-in socket 213 and the second concave snap-in socket 223 are respectively snap-fitted with the two straight sides 12 of the chain ring 10 .

[0020] Furthermore, the upper top piece 21 also includes a first connecting portion 214, which is located between the first clamping portion 211 and the first threaded docking portion 212, and is in the shape of a cone. The first clamping portion 211 is arranged on the wide side of the first connecting portion 214, and the first threaded docking portion 212 is arranged on the narrow side of the first connecting portion 214; the lower top piece 22 also includes a second connecting portion 224, which is located between the second clamping portion 221 and the second threaded docking portion 222, and is in the shape of a cone. The second clamping portion 221 is arranged on the wide side of the second connecting portion 224, and the second threaded docking portion 222 is arranged on the narrow side of the second connecting portion 224.

[0021] Furthermore, a through hole 233 is provided in the middle of the expansion sleeve 23 , and the through hole 233 allows a torque tool to be inserted therein to facilitate the rotation of the expansion sleeve 23 .

[0022] During use of the chain formed by interconnecting the components of the present invention, each link 10 is pulled and is constantly subjected to tension, and the two ends of the anti-knotting component 20 respectively support the two straight sides 12 of the link 10, thereby enhancing the structural strength of the present invention, thereby improving the fatigue resistance of the link 10 and extending its service life.

Claims

1. A mine anti-knot chain ring, characterized in that: It includes a chain ring and an anti-knot component. The chain ring includes a left-right symmetrical arc portion and a top-bottom symmetrical straight edge portion. The anti-knot component includes an upper top piece, a lower top piece and an expansion sleeve. The upper top piece is arranged at the top end of the expansion sleeve in a telescopic manner, and the lower top piece is arranged at the bottom end of the expansion sleeve in a telescopic manner. The top end of the upper top piece rests on the upper straight edge portion, and the bottom end of the lower top piece rests on the lower straight edge portion, so that the anti-knot component is installed in the chain ring.

2. The anti-knot chain ring for mining according to claim 1, characterized in that: The upper ejector piece includes a first clamping portion and a first threaded docking portion, and the lower ejector piece includes a second clamping portion and a second threaded docking portion, the external threads of the first threaded docking portion and the external threads of the second threaded docking portion are directional threads to each other; the expansion sleeve is provided with a first internal thread and a second internal thread, the first internal thread and the second internal thread are directional threads to each other, the first threaded docking portion is meshed with the first internal thread, and the second threaded docking portion is meshed with the second internal thread. When the expansion sleeve rotates relative to the upper ejector piece and the lower ejector piece, the upper ejector piece and the lower ejector piece extend out of or retract from the expansion sleeve.

3. The anti-knot chain ring for mining according to claim 2, characterized in that: A first concave snap-in socket is arranged at the top end of the first snap-in portion, and a second concave snap-in socket is arranged at the top end of the second snap-in portion. The first concave snap-in socket and the second concave snap-in socket are respectively snap-fitted with two straight sides of the chain ring.

4. The anti-knot chain ring for mining according to claim 2, characterized in that: The upper top piece also includes a first connecting portion, which is located between the first clamping portion and the first threaded docking portion, and is in the shape of a cone. The first clamping portion is arranged on the wide side of the first connecting portion, and the first threaded docking portion is arranged on the narrow side of the first connecting portion; the lower top piece also includes a second connecting portion, which is located between the second clamping portion and the second threaded docking portion, and is in the shape of a cone. The second clamping portion is arranged on the wide side of the second connecting portion, and the second threaded docking portion is arranged on the narrow side of the second connecting portion.

5. The anti-knot chain ring for mining according to claim 1, characterized in that: A through hole is arranged in the middle of the expansion sleeve, and a torque tool can be inserted into the through hole to facilitate the rotation of the expansion sleeve.

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