Rotary assembled vertical chain link

Abstract

The utility model relates to the technical field of chain connecting parts for coal mine machinery, in particular to a rotary assembly type vertical chain connecting ring for heavy load equipment such as coal mine scraper conveyor, transfer machine and the like. The chain connecting ring comprises an upper half chain connecting ring and a lower half chain connecting ring, and the two half rings are of the same structure and are set as a rotary embedded interlocking structure. The upper half chain connecting ring and the lower half chain connecting ring are inwardly recessed at one end to form a semi-open circular arc groove, and are outwardly extended at the other end to form a circular arc boss. Through the design of the "circular arc surface rotary embedding" of the upper half chain connecting ring and the lower half chain connecting ring, the chain connecting ring is free of punching pin holes, and the length size of the misaligned lap joint surface is adjustable. Compared with the existing "push-pull assembly type" chain connecting ring technology, the utility model can reduce the manufacturing cost and improve the overall structural strength.

Description

Technical Field

[0001] This utility model relates to the technical field of chain connection components for coal mining machinery, specifically to a rotary assembled vertical connecting chain ring for heavy-duty equipment such as coal mine scraper conveyors and transfer machines. Background Technology

[0002] Vertical chain links are key components in chain drive systems for coal mining machinery, connecting adjacent chains. They are widely used in heavy-duty applications such as coal mines, metallurgy, and power plants. Most existing vertical chain links employ a two-half-ring "push-pull assembly" structure, such as... Figure 1 , Figure 2 As shown, when assembling and disassembling the upper and lower connecting links in this structure, the pitch space occupied by two flat rings needs to be reserved. The length of the misaligned overlapping surface is limited, and pin holes need to be drilled after assembly, which is cumbersome. Long-term use is prone to pin loosening or connecting link wear due to stress concentration, affecting transmission stability and service life.

[0003] To address the aforementioned shortcomings, there is an urgent need for a vertical connecting chain that is easy to assemble and has flexible size adjustment capabilities, in order to reduce manufacturing costs, improve assembly efficiency, and extend the service life of components. Summary of the Invention

[0004] The purpose of this utility model is to overcome the defects of the existing technology and provide a rotary assembly type vertical connecting chain ring. Through the design of "arc surface rotational fitting", it can achieve the elimination of pin holes and the adjustable length of the staggered overlapping surface, thereby reducing manufacturing costs and improving structural strength.

[0005] To achieve the above objectives, this utility model discloses a rotary assembly type vertical connecting link, including an upper connecting link 1 and a lower connecting link 2. The upper connecting link 1 and the lower connecting link 2 have the same structure and size, and are both configured as a rotary interlocking structure.

[0006] Furthermore, one end of the upper connecting link 1 and the lower connecting link 2 is recessed inward to form a semi-open arc groove A, and the other end extends outward to form an arc boss B.

[0007] Furthermore, the semi-open circular arc groove A is composed of an outer circular arc Y1, an inner circular arc Y2, and a groove line segment T2, and the circular arc boss B is composed of an outer circular arc W1, an inner circular arc W2, and a boss line segment T1.

[0008] Furthermore, the outer arc radius WR1 and outer arc radius WL1 of the outer arc W1 of the circular arc boss B are the same as the outer arc radius YR1 and outer arc radius YL1 of the outer arc Y1 of the semi-open circular arc groove A.

[0009] Furthermore, the inner arc radius WR2 and inner arc curvature WL2 of the inner arc W2 of the arc boss B are the same as the inner arc radius YR2 and inner arc curvature YL2 of the inner arc Y2 of the semi-open arc groove A.

[0010] Furthermore, the inner side-boss segment T1 of the arc boss B and the inner side-groove segment T2 of the semi-open arc groove A are located on the same straight line K, parallel to but not overlapping with the side of the connecting ring.

[0011] Furthermore, the common center E of the outer arc W1 and inner arc W2 of the arc boss B and the outer arc Y1 and inner arc Y2 of the semi-open arc groove A is located on the rotational symmetry axis of the connecting ring.

[0012] Furthermore, the top outer arc edge and inner arc edge of the arc boss B are provided with positioning protrusions F; the bottom outer arc edge and inner arc edge of the semi-open arc groove A are provided with positioning slots G.

[0013] Furthermore, the right angle between the positioning slot G and the positioning protrusion F is rounded.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Reduced costs and increased efficiency: The upper half of the chain link 1 and the lower half of the chain link 2 have the same structure. Only one set of molds is needed for mass production, which reduces the cost of mold development and manufacturing. The rotating and fitting structure can be clamped and constrained by the chain flat ring. There is no need to drill fixed pin holes, which shortens the processing time and saves drilling and pin costs. 2. Adjustable size and reliable strength: The upper half of the connecting link 1 and the lower half of the connecting link 2 are rotated and fitted together. The assembly and disassembly process avoids the space occupied by the pitch size of the two flat rings. Under the premise that the pitch of the connecting link remains unchanged, the length can be increased, thereby increasing the length of the misaligned joint surface and improving the structural strength. Attached Figure Description

[0015] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and objectives that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the lower half of the "push-pull assembly" connecting link; Figure 2A schematic diagram of the overall three-dimensional structure of the "push-pull assembly" connecting link after assembly and drilling. Figure 3 : Front view of the overall three-dimensional structure of this utility model after assembly; Figure 4 : Rear view of the overall three-dimensional structure of this utility model after assembly; Figure 5 : Schematic diagram of the assembly process of this utility model (arrows indicate the rotation direction of the upper half of the chain link); Figure 6 , Figure 7 : A three-dimensional structural diagram of the lower half of the connecting link (upper half of the connecting link) of this utility model; Figure 8 : A three-dimensional structural diagram of the connecting chain ring after it has been tightened; The markings in the diagram are: 1-upper half connecting link, 2-lower half connecting link, A-semi-open arc groove, B-arc boss, W1-outer arc of boss, W2-inner arc of boss, T1-boss line segment, Y1-outer arc of groove, Y2-inner arc of groove, T2-groove line segment, E-common center, F-positioning protrusion, G-positioning slot, K-straight line, WR1-radius of outer arc of boss, WL1-radius of outer arc of boss, YR1-radius of outer arc of groove, YL1-radius of outer arc of groove, WR2-radius of inner arc of boss, WL2-radius of inner arc of boss, YR2-radius of inner arc of groove, YL2-radius of inner arc of groove. Detailed Implementation

[0017] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] According to an embodiment of this utility model, a rotary assembly type vertical connecting chain ring is provided, such as... Figures 3 to 5 As shown, it includes an upper connecting link 1 and a lower connecting link 2. The upper connecting link 1 and the lower connecting link 2 are assembled by rotational fitting to form a complete connecting link body.

[0019] One end of the upper half connecting link 1 and the lower half connecting link 2 is recessed inward to form a semi-open arc groove A, and the outer arc edge and inner arc edge of the bottom of the groove are provided with positioning slots G; the other end extends outward to form an arc boss B, and the outer arc edge and inner arc edge of the top of the boss are provided with positioning protrusions F.

[0020] The positioning slot G and the positioning protrusion F are machined into a rounded transition at the right angle to ensure that the positioning slot G of the upper half of the connecting chain 1 and the positioning protrusion F of the lower half of the connecting chain 2 fit together properly.

[0021] The described rotary fitting assembly process: when the upper half of the connecting link 1 and the lower half of the connecting link 2 are mated, according to... Figure 5 The links are arranged in an X-shape. Align the arc-shaped boss B of the upper half of the link 1 with the semi-open arc-shaped groove A of the lower half of the link 2. At this point, the positioning protrusion F is aligned with the positioning slot G. Rotate the upper half of the link 1 along the arc surface by 10°-30° until the arc-shaped boss B is fully embedded in the semi-open arc-shaped groove A. After rotation, tighten the chain. The two chain rings at both ends of the link will naturally engage with the link, forming a locking and restraining effect. Figure 8 As shown.

[0022] Rotary assembly vertical connecting links are available in various specifications. In actual use, different sizes can be selected according to the size of the chain, which will not be elaborated here.

[0023] The present invention has been described in detail above with general descriptions and specific embodiments. However, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention are within the scope of protection claimed by the present invention.

Claims

1. A rotary assembly type vertical connecting link, comprising an upper connecting link (1) and a lower connecting link (2), characterized in that: The upper half connecting link (1) and the lower half connecting link (2) are configured as a rotating interlocking structure; one end of the upper half connecting link (1) and the lower half connecting link (2) is recessed inward to form a semi-open arc groove (A), and the other end extends outward to form an arc boss (B).

2. The rotary assembly type vertical connecting chain link according to claim 1, characterized in that: The semi-open circular arc groove (A) is composed of an outer circular arc (Y1), an inner circular arc (Y2), and a groove line segment (T2). The circular arc boss (B) is composed of an outer circular arc (W1), an inner circular arc (W2), and a boss line segment (T1).

3. The rotary assembly type vertical connecting chain link according to claim 2, characterized in that: The outer arc radius (WR1) and outer arc radius (WL1) of the boss are the same as those of the outer arc radius (YR1) and outer arc radius (YL1) of the groove. The inner arc radius (WR2) and inner arc radius (WL2) of the boss are the same as those of the inner arc radius (YR2) and inner arc radius (YL2) of the groove. The boss line segment (T1) and the groove line segment (T2) are located on the same straight line (K).

4. The rotary assembly type vertical connecting chain link according to claim 3, characterized in that: The common center (E) of the outer arc (W1) of the boss, the inner arc (W2) of the boss, the outer arc (Y1) of the groove, and the inner arc (Y2) of the groove is located on the rotational symmetry axis of the connecting ring, and the straight line (K) is parallel to but does not coincide with the side of the connecting ring.

5. The rotary assembly type vertical connecting chain link according to claim 1, characterized in that: The top outer arc edge and inner arc edge of the arc boss (B) are provided with positioning protrusions (F), and the bottom outer arc edge and inner arc edge of the semi-open arc groove (A) are provided with positioning slots (G).

6. A rotary assembly type vertical connecting chain link according to claim 5, characterized in that: The right angle between the positioning slot (G) and the positioning protrusion (F) is rounded.

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