Roll forging device for mining vertical chain connecting ring

Abstract

The utility model relates to the technical field of chain connecting ring processing, and provides a roll forging device for a mining vertical chain connecting ring, which comprises a roller press, a roll forging die, a feeding mechanism and a reciprocating motion clamp. The roller press is provided with an upper pressing roller and a lower pressing roller which are driven by a motor and a crankshaft to rotate. The roll forging die is of an arc-shaped structure and is installed on the compression roller, a clamping groove is formed in one side, a protruding strip is arranged on the other side, and detachable connection between the dies is achieved. And a rolling groove is formed in the mold. A plurality of rolling units are installed on the rolling mechanism, each unit is composed of a pair of molds, and the rolling grooves of the adjacent units are different in width so as to meet the machining requirements of chain connecting rings of different specifications. The feeding mechanism is responsible for conveying the steel sections, the reciprocating motion clamp clamps the steel sections to do reciprocating motion, and rolling forming of the steel sections between the dies is achieved. According to the device, through the design of the segmented rolling grooves and the arrangement of the rolling units, the mechanical performance and the production efficiency of the chain connecting ring are improved, the maintenance cost is reduced, and the machining quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chain link processing, in particular to a roll forging device for a vertical chain link used in mining. Background Art

[0002] As one of the world's most important energy resources, coal plays a crucial role in economic development. Coal mining operations are increasingly moving deeper and into more complex geological conditions, placing extremely high demands on the reliability and safety of mining equipment. Mine vertical linking links serve as crucial connectors for key transportation equipment such as scraper conveyors and transfer machines. Their performance directly impacts the proper functioning of the entire mining system. In the harsh working environments of coal mines, these linking links must withstand immense tensile forces, impact forces, and friction, placing extremely stringent demands on their quality and performance.

[0003] The traditional manufacturing process of connecting links generally uses an air hammer to manually open-forge the blanks. Although open-forging can improve the internal structure of the material to a certain extent, the overall metal flow is not ideal, making it impossible for the product to achieve optimal mechanical properties.

[0004] The quality of open-forged link adapters is significantly influenced by the operator's skill level and the control of process parameters. This leads to significant quality variations between batches, making it difficult to ensure product consistency and reliability. For example, during the forging process, misaligned placement can lead to uneven structure, which in turn affects mechanical properties.

[0005] Therefore, it is of great significance to design a roll forging device for a mining vertical link chain that solves the above problems. Utility Model Content

[0006] In order to solve the problems existing in the background technology, the utility model provides a roll forging device for a vertical connecting link for mining, which includes:

[0007] A roller press, wherein the roller press is provided with a roller pressing mechanism and a driving mechanism, wherein the roller pressing mechanism includes an upper pressing roller and a lower pressing roller arranged at intervals, wherein the upper pressing roller and the lower pressing roller are both connected to the driving mechanism and driven to rotate by the driving mechanism;

[0008] The roll forging die is an arc-shaped structure, which is installed on the upper and lower pressure rollers;

[0009] A slot is provided on one side of the roll forging die, and a ridge matching the slot shape is provided on the other side. Adjacent roll forging dies are detachably connected through the slot and the ridge. The roll forging die is provided with a roll pressing groove, which is provided with an upper roll segment groove, a middle roll segment groove, and a lower roll segment groove.

[0010] A pair of roll forging dies installed at opposite positions on the upper and lower press rollers constitute a roll pressing unit, and a plurality of roll pressing units are installed on the roll pressing mechanism;

[0011] A feeding mechanism for conveying steel segments is provided in front of the rolling mechanism;

[0012] A reciprocating clamp is provided in front of the rolling mechanism, and the end of the reciprocating clamp is provided between the upper pressing roller and the lower pressing roller. The steel section is clamped and reciprocated, and the steel section is roll-formed between the roll forging die of the upper pressing roller and the roll forging die of the lower pressing roller.

[0013] In a preferred solution, the widths of the upper roller segment groove and the lower roller segment groove are greater than the width of the middle roller segment groove.

[0014] In a preferred solution, three or four rolling units are provided on the rolling mechanism.

[0015] In a preferred solution, adjacent rolling units are provided with rolling grooves of different widths.

[0016] In a preferred solution, the driving mechanism is a motor and a crankshaft, and the output end of the motor is connected to the upper pressing roller and the lower pressing roller through the crankshaft.

[0017] The beneficial effects achieved by the utility model are:

[0018] First, the utility model has a detachable connection design for the roll forging die. A slot is provided on one side of the roll forging die, and a convex strip matching the shape of the slot is provided on the other side. The slot and the convex strip are used to realize the detachable connection of adjacent roll forging dies. The roll groove is designed in a segmented manner. The roll groove provided by the roll forging die includes an upper roll segment groove, a middle roll segment groove, and a lower roll segment groove. The width of the upper roll segment groove and the lower roll segment groove is greater than the width of the middle roll segment groove. The detachable connection design makes the replacement and maintenance of the roll forging die simpler and faster, reduces maintenance costs, and improves work efficiency. The segmented design of the roll groove can guide the steel segment to form the desired shape during the rolling process, while ensuring the uniform movement of the material, thereby improving the mechanical properties and consistency of the chain link.

[0019] Second, the utility model has three or four rolling units installed on the rolling mechanism, and each rolling unit is composed of a pair of roll forging dies installed at relative positions of the upper and lower rollers. The rolling grooves of adjacent rolling units are set with different widths to meet the processing requirements of chain links of different specifications and shapes. By setting up multiple rolling units, multiple steel sections can be processed simultaneously, thereby improving production efficiency. At the same time, rolling grooves of different widths can meet the processing requirements of chain links of different specifications and improve processing quality. The different designs of the widths of the rolling grooves of adjacent rolling units enable the roll forging device to process more types of chain links and has a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the roll forging die structure;

[0022] Figure 3 It is a schematic diagram of the connection structure of three roll forging dies;

[0023] Figure 4 It is a schematic diagram of the connection structure of four roller pressing units;

[0024] Figure 5 This is the main view of the connection structure of the four rolling units;

[0025] Figure 6 This is a structural comparison diagram of the steel section before and after roller pressing.

[0026] Numbers in the figure:

[0027] 1. Roll forging die; 11. Upper roller segment groove; 12. Middle roller segment groove; 13. Lower roller segment groove; 14. Raised strip; 15. Clamping slot; 2. Roller press; 21. Reciprocating fixture; 22. Driving mechanism; 23. Upper pressure roller; 24. Lower pressure roller; 25. Feeding mechanism; 3. Steel segment. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0029] Reference Figures 1-6 The utility model discloses a roll forging device for a vertical link in a mining industry, comprising a roller press 2, which is provided with a roller pressing mechanism and a drive mechanism 22. The roller pressing mechanism is composed of an upper roller 23 and a lower roller 24, which are arranged at intervals. The rollers 23 and the lower roller 24 are responsible for rotating under the drive mechanism 22 to roll the steel segment 3.

[0030] The roll forging die 1 is an arc-shaped structure that can be mounted on the upper and lower rollers 23 and 24 by welding or other means. Each die has a slot 15 on one side and a ridge 14 on the other side that matches the slot 15, enabling a removable connection between the dies. The die is internally provided with rolling grooves, divided into an upper roller segment groove 11, a middle roller segment groove 12, and a lower roller segment groove 13, which guide the steel segments 3 during the rolling process.

[0031] The feeding mechanism 25 is located in front of the roller press mechanism and is responsible for conveying the steel segments 3 to be processed to the working area of ​​the roller press 2 .

[0032] The reciprocating clamp 21 has its end arranged between the upper pressing roller 23 and the lower pressing roller 24, and is used to clamp the steel segment 3 and perform reciprocating motion so that the steel segment 3 is roll-formed between the roll forging die 1. The rear end of the reciprocating clamp 21 can be connected to the rotation drive mechanism 22, the telescopic drive mechanism 22 and the transverse movement mechanism. After the reciprocating clamp 21 clamps the steel segment 3, it is driven by the rotation drive mechanism 22 and the telescopic drive mechanism 22 to realize the rotation and telescopic movement of the steel segment 3. Driven by the transverse movement mechanism, the steel segment 3 is switched between different rolling units for rolling.

[0033] The roller pressing mechanism inside the roller press 2 is composed of an upper roller 23 and a lower roller 24, which are spaced apart. A drive mechanism 22, typically a combination of a motor and a crankshaft, transmits the output power of the motor to the upper roller 23 and the lower roller 24 via the crankshaft so that they can rotate synchronously.

[0034] The roll forging dies 1 are detachably connected via the slots 15 and ridges 14. Specifically, the slots 15 of one die mate with the ridges 14 of another, allowing adjacent roll forging dies 1 to be securely connected. This design facilitates die replacement and maintenance.

[0035] A pair of roll forging dies 1, mounted on opposing sides of the upper and lower rollers 23 and 24, form a roll unit. A roll unit is typically equipped with three or four such roll units to improve production efficiency and processing quality. The roll groove widths of adjacent roll units may vary to accommodate the processing requirements of link types with varying specifications and shapes.

[0036] The feeding mechanism 25 is located in front of the rolling mechanism and conveys the steel segments 3 to the working area of ​​the rolling press 2 via an appropriate conveying mechanism, including a conveyor belt or a push rod. The connection between the feeding mechanism 25 and the rolling mechanism must ensure that the steel segments 3 can enter the rolling area smoothly and accurately.

[0037] The end of the reciprocating fixture 21 is positioned between the upper and lower rollers 23 and 24, with its motion trajectory matching the working area of ​​the rolling mechanism. The fixture is connected to the roller press 2 via a mechanical or hydraulic transmission mechanism and, driven by a motor, reciprocates, thereby gripping and pushing the steel segment 3 between the roll forging dies 1 for roll forming.

[0038] The working process of the roll forging device of a vertical connecting link for mining in the present invention, including the roller press 2, is described as follows:

[0039] Properly configure and install the roller press 2, roll forging die 1, feed mechanism 25, reciprocating fixture 21, and other components. The roller press 2 consists of a rolling mechanism and a drive mechanism 22. The rolling mechanism includes an upper roller 23 and a lower roller 24 spaced apart. The drive mechanism 22 comprises a motor and a crankshaft, which connects the motor to the upper and lower rollers 23 and 24 via the crankshaft. The roll forging die 1 is an arc-shaped structure, mounted on the upper and lower rollers 23 and 24. Each die has a latching groove 15 on one side and a ridge 14 on the other side that matches the latching groove 15, enabling a removable connection. Each die is internally provided with rolling grooves, including an upper roller segment groove 11, a middle roller segment groove 12, and a lower roller segment groove 13. Several roll forging dies 1 are mounted relative to the upper and lower rollers 23 and 24, forming a rolling unit. A rolling unit is typically equipped with three or four rolling units, and the rolling grooves of adjacent rolling units can be designed to have different widths.

[0040] The feed mechanism 25 delivers the steel segment 3 to be processed to the rolling mechanism. The end of the reciprocating clamp 21 is positioned between the upper and lower rollers 23 and 24, gripping the steel segment 3 and performing a reciprocating motion. A motor drives the upper and lower rollers 23 and 24 via a crankshaft, which in turn rotates the roll forging die 1. The steel segment 3 is subjected to pressure between the upper and lower rollers 24 and the roll forging die 1, gradually forming into the shape of the roll groove. The roll groove is designed so that the width of the upper and lower roller grooves 11 and 13 is greater than the width of the middle roller groove 12. This allows the steel segment 3 to form the desired shape during the rolling process while ensuring uniform material movement.

[0041] The rolling unit can be configured with three or four passes. During each forging pass, the reciprocating fixture 21 flips the workpiece 90 degrees. Driven by the transverse mechanism, the steel segment 3 can be switched between the different rolling units for multiple passes of roll forging, ensuring that every part of the link is fully processed. After the roll forging is completed, the formed link is removed and enters the subsequent processing or testing process.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A roll forging device for a vertical link in a mine, characterized in that: It includes: A roller press, wherein the roller press is provided with a roller pressing mechanism and a driving mechanism, wherein the roller pressing mechanism includes an upper pressing roller and a lower pressing roller arranged at intervals, wherein the upper pressing roller and the lower pressing roller are both connected to the driving mechanism and driven to rotate by the driving mechanism; The roll forging die is an arc-shaped structure, which is installed on the upper and lower pressure rollers; A slot is provided on one side of the roll forging die, and a ridge matching the slot shape is provided on the other side. Adjacent roll forging dies are detachably connected through the slot and the ridge. The roll forging die is provided with a roll pressing groove, which is provided with an upper roll segment groove, a middle roll segment groove, and a lower roll segment groove. A pair of roll forging dies installed at opposite positions on the upper and lower press rollers constitute a roll pressing unit, and a plurality of roll pressing units are installed on the roll pressing mechanism; A feeding mechanism for conveying steel segments is provided in front of the rolling mechanism; A reciprocating clamp is provided in front of the rolling mechanism, and the end of the reciprocating clamp is provided between the upper pressing roller and the lower pressing roller. The steel section is clamped and reciprocated, and the steel section is roll-formed between the roll forging die of the upper pressing roller and the roll forging die of the lower pressing roller.

2. The roll forging device for a vertical connecting link for mining according to claim 1, characterized in that: The widths of the upper roll segment groove and the lower roll segment groove are greater than the width of the middle roll segment groove.

3. The roll forging device for a vertical connecting link for mining according to claim 1, characterized in that: The rolling mechanism is provided with three or four rolling units.

4. The roll forging device for a vertical connecting link for mining according to claim 3, characterized in that: Adjacent rolling units are provided with rolling grooves having different widths.

5. The roll forging device for vertical connecting link for mining according to claim 1, characterized in that: The driving mechanism comprises a motor and a crankshaft, and the output end of the motor is connected to the upper pressing roller and the lower pressing roller via the crankshaft.

Images