Welding auxiliary tool for high-wear-resistance mining high-strength butterfly-shaped chain
By designing a positioning module, support base, and welding conductor for the butterfly chain welding auxiliary fixture, the problem that existing fixtures cannot weld butterfly chains was solved, achieving accurate and stable welding of butterfly chains and improving welding stability and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA TIANDI BENNIU CHAIN
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
Existing welding fixtures for mining chains cannot effectively weld butterfly chains and cannot adapt to the special structural form of butterfly chains.
A high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining applications was designed, including a positioning module, a support base, and a welding conductor. The positioning module clamps the open vertical ring from both sides, the support base provides support from below, and the welding conductor presses against the opening, achieving stable positioning at four points to facilitate accurate and smooth welding.
This technology enables accurate and stable welding of butterfly chains, improving welding stability and efficiency.
Smart Images

Figure CN224182432U_ABST
Abstract
Description
High-strength, wear-resistant butterfly chain welding auxiliary tooling for mining Technical Field
[0001] This utility model relates to the field of mining chain technology, and in particular to a welding auxiliary tooling for a high wear-resistant, high-strength butterfly chain for mining. Background Technology
[0002] Mining chains are used as a supporting transmission medium in coal mine working face conveyors. They are widely used in various coal mine conveying equipment such as scraper conveyors and transfer conveyors, and are one of the most widely used spare parts in coal mine scraper conveyors.
[0003] Currently, there are two main types of mining chains: one is the high-strength round link chain, characterized by identical welded round links for both vertical and horizontal links, conforming to standard GB / T12718-2009 "High-strength Round Link Chains for Mining"; the other is the high-strength compact chain, characterized by welded round links for horizontal links and flat extruded / forged links for vertical links, conforming to standard MT / T929-2004 "High-strength Compact Chains for Mining". Compared to the simple chaining method of alternating links in round link chains, compact chains require bending and weaving using specialized chain-weaving molds. However, with technological advancements, chains have emerged, such as the one disclosed in invention patent application number US13143285. This chain has flat links that are approximately butterfly-shaped, and vertical links that are flat. By modifying the shape of the flat links, it adapts to the use of scrapers. However, due to the special structural form of butterfly chains, existing mining chain welding fixtures can only be used for round link chains and compact chains, and cannot be used for welding butterfly chains. Summary of the Invention
[0004] In order to solve the technical problems existing in the above-mentioned technologies, it is necessary to provide a high-strength butterfly chain welding auxiliary tooling for high wear resistance in mining.
[0005] A high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining applications, comprising:
[0006] A positioning module, comprising a left positioning module and a right positioning module; the left and right positioning modules are used to clamp the open vertical ring from both sides.
[0007] A support base, located between the left positioning mold and the right positioning mold, is used to provide support for the lower part of the open vertical ring;
[0008] A welding conductor is located between the left and right positioning molds and is used to apply pressure to the opening of the open vertical ring.
[0009] Preferably, the ends of the left and right positioning molds have positioning grooves that are adapted to the size and shape of the open vertical ring.
[0010] Preferably, the junction between the bottom surface and the side wall of the positioning groove is arc-shaped.
[0011] Preferably, the left and right positioning molds are provided with mounting parts on the side away from the positioning groove.
[0012] Preferably, the left and right positioning molds have a supporting inclined surface on the side facing the support base that can support the butterfly-shaped flat ring.
[0013] Preferably, the end of the support base has a support groove that matches the size and shape of the open vertical ring.
[0014] Preferably, the junction between the bottom surface and the side wall of the support groove is arc-shaped.
[0015] Preferably, there are four welding conductors, which are symmetrically arranged on the left and right sides of the support base. At the corner of each welding conductor end, a groove is formed that matches the outer contour of the open vertical ring, so that the grooves formed by the ends of the two oppositely arranged welding conductors can lock the open vertical ring.
[0016] Compared with the prior art, the high-strength, wear-resistant butterfly chain welding auxiliary tooling provided by this utility model includes a positioning module, a support base, a welding conductor, and a deburring part; the positioning module includes a left positioning module and a right positioning module; the left and right positioning modules can clamp the open vertical ring from both sides; the support base is located between the left and right positioning modules and can provide support for the lower part of the open vertical ring; the welding conductor is located between the left and right positioning modules and can provide pressure to the opening of the open vertical ring; the positioning module, support base, and welding conductor form a four-point stable positioning for the open vertical ring and the butterfly flat ring, thereby achieving accurate and stable welding. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0018] Figure 1 is a structural schematic diagram of the present invention when welding the vertical ring and the butterfly-shaped flat ring.
[0019] Figure 2 is a top view of the structure of this utility model as shown in Figure 1.
[0020] Figure 3 is a structural schematic diagram of the present invention from another angle as shown in Figure 1.
[0021] Figure 4 is a structural schematic diagram of the left positioning mold of this utility model.
[0022] Figure 5 is a structural schematic diagram of the support base of this utility model.
[0023] Figure 6 is a schematic diagram of the structure of the welded conductor of this utility model.
[0024] In the figure: Positioning module 01, left positioning module 11, right positioning module 12, positioning groove 13, mounting part 14, supporting inclined surface 15, support base 02, supporting groove 21, welding conductor 03, slot 31, open vertical ring 05, butterfly flat ring 06. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0027] Please refer to Figures 1 to 6. This utility model provides a welding auxiliary tooling for high-strength, wear-resistant, and high-wear-resistant butterfly chains used in mining. The tooling includes a positioning module 01, a support base 02, and a welding conductor 03. The positioning module 01 includes a left positioning module 11 and a right positioning module 12. The left and right positioning modules 11 and 12 can clamp the open vertical ring from both sides. The support base 02 is located between the left and right positioning modules 11 and 12, providing support for the lower part of the open vertical ring. The welding conductor 03 is located between the left and right positioning modules 11 and 12, providing pressure to the opening of the open vertical ring. The positioning module 01, support base 02, and welding conductor 03 provide stable four-point positioning for the open vertical ring and the butterfly flat ring, thereby enabling accurate and stable welding.
[0028] In one embodiment, the ends of the left positioning mold 11 and the right positioning mold 12 have positioning grooves 13 that are adapted to the size and shape of the open vertical ring. When the open vertical ring is clamped from left to right by the left positioning mold 11 and the right positioning mold 12, the positioning grooves 13 can adapt to the outer contour of the open vertical ring to improve the stability of the clamping. The movement of the left positioning mold 11 and the right positioning mold 12 can be achieved by auxiliary equipment with telescopic function, such as hydraulic cylinders, electric telescopic rods, pneumatic telescopic rods, etc. This technology is prior art and will not be described in detail here.
[0029] In order to better enable the positioning groove 13 to make better contact with the open vertical ring, the junction of the bottom surface and the side wall of the positioning groove 13 is designed to be arc-shaped.
[0030] To facilitate installation, mounting parts 14 are provided on the side of the left positioning mold 11 and the right positioning mold 12 away from the positioning groove 13, and the left positioning mold 11 and the right positioning mold 12 can be installed on the auxiliary equipment by means of bolts.
[0031] The left positioning mold 11 and the right positioning mold 12 have a supporting inclined surface 15 on the side facing the support base 02. The supporting inclined surface 15 can support the butterfly-shaped flat ring, so that the two butterfly-shaped flat rings are assembled with the open vertical ring in a V shape, so as to facilitate welding.
[0032] In one embodiment, the end of the support base 02 has a support groove 21 that is adapted to the size and shape of the open vertical ring.
[0033] In order to better enable the support groove 21 to make better contact with the open vertical ring, the junction of the bottom surface and the side wall of the support groove 21 is designed to be arc-shaped.
[0034] In one embodiment, there are four welding conductors 03, which are symmetrically arranged along the support base 02. Each welding conductor 03 has a groove 31 at its end that matches the outer contour of the open vertical ring. This allows the grooves 31 formed at the ends of two opposing welding conductors 03 to hold the open vertical ring in place, thus positioning the opening of the ring. The welding conductors 03 can be installed on a welding device, allowing for adjustment of their vertical position. This technology is prior art and will not be described further here.
[0035] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining, characterized in that: The system includes a positioning module, which comprises a left positioning module and a right positioning module. The left and right positioning modules are used to clamp the open vertical ring from both sides. A support base, located between the left positioning mold and the right positioning mold, is used to provide support for the lower part of the open vertical ring; A welding conductor is located between the left and right positioning molds and is used to apply pressure to the opening of the open vertical ring.
2. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 1, characterized in that: The ends of the left and right positioning molds have positioning grooves that are adapted to the size and shape of the open vertical ring.
3. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 2, characterized in that: The junction between the bottom surface and the side wall of the positioning groove is arc-shaped.
4. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 3, characterized in that: The left and right positioning molds are provided with mounting parts on the side away from the positioning groove.
5. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 2, characterized in that: The left and right positioning molds have a support slope on the side facing the support base that can support the butterfly-shaped flat ring.
6. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 5, characterized in that: The end of the support base has a support groove that matches the size and shape of the open vertical ring.
7. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 6, characterized in that: The junction between the bottom surface and the side wall of the support groove is arc-shaped.
8. The high-strength, wear-resistant butterfly chain welding auxiliary tooling for mining as described in claim 1, characterized in that: There are four welding conductors, which are symmetrically arranged on the left and right sides of the support base. At the corner of each welding conductor end, a groove is formed that matches the outer contour of the open vertical ring, so that the grooves formed by the ends of the two oppositely arranged welding conductors can lock the open vertical ring.