A chain for a mining chain boom saw

Abstract

The application relates to the technical field of chain arm saws, and particularly discloses a chain for a mine-used chain arm saw, which comprises an outer chain plate and an inner chain plate, a connecting groove is arranged through the length direction of the outer chain plate, the connecting groove is open on one side along the width direction of the outer chain plate, one end of the length direction of the inner chain plate is embedded into the connecting groove, a mounting hole is arranged on the outer chain plate, a clamping plane is arranged on the inner wall of the mounting hole, a connecting shaft is rotatably arranged on the inner chain plate, the two ends of the connecting shaft are slidably connected into the mounting hole, clamping grooves are arranged on the two ends of the connecting shaft along the axial direction and on the same side, the clamping plane is in abutment with the inner wall of the clamping groove, and an abutting piece for preventing the connecting shaft from sliding in the mounting hole is arranged on the outer chain plate. The application has the effect of facilitating the installation and dismounting of the chain.

Description

Technical Field

[0001] This application relates to the field of chain arm saw technology, and in particular to a chain for mining chain arm saws. Background Technology

[0002] Chain saws are essential equipment in stone quarrying. They drive a chain equipped with cutting teeth in reciprocating or continuous motion to achieve efficient cutting of stone. Combining the flexibility of a robotic arm with the high-efficiency cutting capability of a chain saw, chain saws offer greater convenience and safety, making them a highly efficient form of stone processing machinery.

[0003] In the related technology, the utility model application with application number CN202421901074.8 discloses a chain for a chain arm saw, including a first outer pad, a second outer pad, a connecting plate, an inner pad, a connecting shaft, a second connecting rivet, and a positioning groove. In use, the inner pad is inserted between the first and second outer pads, and then the connecting shaft passes through the first outer pad, the inner pad, and the second outer pad. The second connecting rivet is then passed through the connecting shaft, and both ends of the second connecting rivet are bent and locked into the positioning grooves on the first and second outer pads, thereby completing the assembly and fixing of the entire chain.

[0004] In actual use, it was found that during the assembly of the entire chain, the rigid bending of the second connecting rivet is mainly relied upon to lock the first outer pad, the second outer pad, and the inner pad. This makes the overall installation and disassembly of the chain quite cumbersome, and the bent second connecting rivet cannot be reused, which significantly increases the operating cost of the equipment. Utility Model Content

[0005] To facilitate the installation and disassembly of the chain, this application provides a chain for a mining chain arm saw, which has the effect of facilitating the installation and disassembly of the chain.

[0006] The chain for a mining chainsaw provided in this application adopts the following technical solution: A chain for a mining chain arm saw includes an outer chain plate and an inner chain plate. The outer chain plate has a connecting groove extending through its length, with one side of the connecting groove open along its width. One end of the inner chain plate is embedded in the connecting groove along its length. The outer chain plate has a mounting hole with a snap-fit ​​surface on its inner wall. A connecting shaft passes through the inner chain plate, and both ends of the connecting shaft slide against the inner wall of the mounting hole. Both ends of the connecting shaft along its axial direction, on the same side, have snap-fit ​​grooves, with the snap-fit ​​surface abutting against the inner wall of the snap-fit ​​grooves. The outer chain plate has a stop member to prevent the connecting shaft from sliding within the mounting hole.

[0007] By adopting the above technical solution, the inner chain plate is embedded in the connecting groove, and then the connecting shaft is inserted into the mounting hole and the inner chain plate. The connecting shaft is then slid in the mounting hole until the snap-fit ​​surface abuts against the inner wall of the slot, thus limiting and fixing the connecting shaft in the mounting hole, which facilitates reducing the circumferential rotation of the connecting shaft in the mounting hole. The abutment part prevents the connecting shaft from sliding on the outer chain plate, thereby completing the installation of the connecting shaft with the outer chain plate and the inner chain plate. The entire assembly process is simple and convenient, and all parts can be reused for maintenance or assembly, effectively reducing equipment costs.

[0008] Optionally, the outer chain plate has an abutment hole, the abutment member is inserted into the abutment hole and abuts against the inner wall of the abutment hole, and the middle section of the abutment member abuts against the inner chain plate.

[0009] By adopting the above technical solution, the plug-in and plug-out engagement of the abutment and the abutment hole allows the abutment to be pulled out during disassembly to release the locking of the abutment to the connecting shaft, which is beneficial for the installation and maintenance of the inner and outer chain plates.

[0010] Optionally, the abutment hole is located on the side of the outer chain plate away from the open side of the connecting groove.

[0011] By adopting the above technical solution, and by opening the abutment hole on the side of the outer chain plate away from the open side, it is easier to reduce the collision between the abutment part and the teeth on the sprocket, which helps to extend the service life of both.

[0012] Optionally, the abutment is an open spring pin, and the open spring pin is made of spring steel.

[0013] By adopting the above technical solution, the open spring pin achieves radial positioning by tightly fitting the inner wall of the abutment hole due to the elastic deformation of the outer wall. This can reduce the open spring pin from falling out of the abutment hole and help maintain the locking state of the abutment part on the connecting shaft.

[0014] Optionally, the length direction of the mounting hole is parallel to the length direction of the outer chain plate.

[0015] By adopting the above technical solution, the length direction of the mounting hole is set parallel to the length direction of the outer chain plate, which makes it easier to pull the connecting shaft along the length direction of the inner chain plate, so that the inner wall of the slot on the connecting shaft abuts against the snapping plane of the mounting hole, which is beneficial to the positioning of the connecting shaft.

[0016] Optionally, the outer chain plate is provided with a mounting seat for mounting the tool, and the length direction of the mounting seat is parallel to the length direction of the outer chain plate.

[0017] By adopting the above technical solution, the mounting base provides an installation reference for the cutting tool, which facilitates quick and easy tool installation.

[0018] Optionally, the mounting base is provided with positioning holes.

[0019] By adopting the above technical solution, the positioning hole can be easily matched with the screw to position and lock the tool.

[0020] Optionally, a limiting block is provided at one end of the mounting base along its length, and the limiting block is located at the end of the mounting base away from the positioning hole.

[0021] By adopting the above technical solution, the limiting block facilitates the positioning of external tools.

[0022] In summary, this application includes at least one of the following beneficial technical effects: The inner chain plate is embedded into the connecting groove, and then the connecting shaft is inserted into the mounting hole and the inner chain plate. The connecting shaft is then slid in the mounting hole until the snap-fit ​​surface abuts against the inner wall of the slot, thus limiting and fixing the connecting shaft in the mounting hole and reducing the circumferential rotation of the connecting shaft in the mounting hole. The connecting shaft is then slid on the outer chain plate by the abutting part, thereby completing the installation of the connecting shaft with the outer chain plate and the inner chain plate. The entire assembly process is simple and convenient, and all parts can be reused for maintenance or assembly, effectively reducing equipment costs. By setting the abutment as an open spring pin, the open spring pin achieves radial positioning by tightly fitting the inner wall of the abutment hole due to the elastic deformation of its outer wall. This reduces the likelihood of the open spring pin falling out of the abutment hole and helps maintain the locking state of the abutment on the connecting shaft. The mounting hole is set parallel to the length of the outer chain plate, which makes it easy to pull the connecting shaft along the length of the inner chain plate. This allows the inner wall of the groove on the connecting shaft to abut against the snap-fit ​​plane of the mounting hole, which is beneficial for the positioning of the connecting shaft. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the chain used in the mining chain arm saw of this application; Figure 2 This is a schematic diagram showing the structure of the chain used in this application for a mining chain arm saw, with the inner chain plate located on the outer chain plate; Figure 3 This is a schematic diagram of the chain connecting shaft of the chain arm saw used in this application, located on the inner chain plate, and the abutting part abutting against the inner chain plate. Figure 4 This is a schematic diagram of the chain connecting shaft used in the mining chain arm saw of this application; Figure 5 This is a schematic diagram of the open spring pin structure of the chain used in the mining chain arm saw of this application.

[0024] Reference numerals: 1. Outer link plate; 2. Inner link plate; 3. Connecting groove; 4. Mounting hole; 5. Snap-fit ​​surface; 6. Connecting shaft; 7. Snap-fit ​​groove; 8. Abutting part; 81. Open spring pin; 9. Abutting hole; 10. Mounting base; 11. Positioning hole; 12. Limiting block; 13. Pin hole. Detailed Implementation

[0025] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0026] This application discloses a chain for a mining chainsaw, referring to... Figure 1 , Figure 2 , Figure 3 and Figure 4 The system includes an outer link plate 1 and an inner link plate 2. The length direction of the inner link plate 2 is parallel to that of the outer link plate 1, and one end of the inner link plate 2 is inserted into the outer link plate 1. Mounting holes 4 are formed at both ends of the outer link plate 1 along its length direction. Each mounting hole 4 consists of two overlapping circular holes. A connecting shaft 6 is mounted on the outer link plate 1. Pin holes 13 are formed at both ends of the inner link plate 2 along its length direction. The connecting shaft 6 passes through the mounting holes 4 and pin holes 13 in sequence. Both ends of the connecting shaft 6 slide against the inner wall of the mounting holes 4 along its length direction, and the middle section of the connecting shaft 6 rotates against the inner wall of the pin holes 13. A snap-fit ​​surface 5 is formed on the inner wall of the mounting holes 4. A slot 7 is formed at both ends of the connecting shaft 6 along its axial direction. The two slots 7 are located on the same side of the connecting shaft 6, and the inner wall of the slot 7 abuts against the snap-fit ​​surface 5. An abutment 8 to prevent the connecting shaft 6 from rotating is also mounted on the outer link plate 1.

[0027] Insert one end of the inner chain plate 2 into the outer chain plate 1, then pass the connecting shaft 6 through the mounting hole 4 and the pin hole 13 in sequence, and then pull the inner chain plate 2 so that the slot 7 on the connecting shaft 6 abuts against the locking plane 5. Finally, install the abutment piece 8 to prevent the connecting shaft 6 from rotating. All parts are independent standard parts that will not be damaged during installation or disassembly, making them easy to reuse and effectively reducing costs. The entire process of installation and disassembly is simple and does not require strong bending of the parts, saving time and manpower.

[0028] Reference Figure 2 The outer chain plate 1 has a connecting groove 3 extending through it along its length. One side of the connecting groove 3 along the width direction of the outer chain plate 1 is open. One end of the inner chain plate 2 along its length direction is embedded in the connecting groove 3. The teeth on the sprocket are embedded in the connecting groove 3 and located between the two sets of inner chain plates 2.

[0029] Reference Figure 2 and Figure 3The length direction of the mounting hole 4 is parallel to the length direction of the outer chain plate 1. After inserting the connecting shaft 6 into the mounting hole 4 and the pin hole 13, the inner chain plate 2 is pulled along the length direction of the inner chain plate 2, so that the connecting shaft 6 slides in the mounting hole 4, thereby causing the inner wall of the slot 7 on the connecting shaft 6 to abut against the snap-fit ​​plane 5, which is beneficial to the fixed installation of the connecting shaft 6.

[0030] Reference Figure 3 The outer chain plate 1 has two sets of abutment holes 9. The abutment member 8 is inserted into the abutment hole 9, and the middle section of the abutment member 8 in the connecting groove 3 abuts against the end of the inner chain plate 2. Both ends of the inner chain plate 2 along its length direction are rounded. When the inner chain plate 2 rotates, it abuts against the inner chain plate 2 through the abutment member 8, which helps to reduce the movement of the connecting shaft 6 along the length direction of the outer chain plate 1 driven by the inner chain plate 2, thereby reducing the dislodgement of the connecting shaft 6 from the mounting hole 4 and effectively improving the stability of the connecting shaft 6 fixed on the outer chain plate 1.

[0031] Reference Figure 3 The abutment hole 9 is located on the side of the outer chain plate 1 away from the open side of the connecting groove 3, which makes it easier to avoid the teeth on the sprocket, reduce the collision between the abutment part 8 and the teeth, and help extend the service life.

[0032] Reference Figure 3 and Figure 5 In this embodiment of the application, the abutment 8 is an open spring pin 81. Due to its open slot structure, the open spring pin 81 can elastically contract when pressed into the abutment hole 9, thereby forming a tight radial fit with the abutment hole 9, which helps to reduce the abutment 8 from falling out of the abutment hole 9.

[0033] Reference Figure 1 A mounting base 10 is integrally formed on the side of the outer link plate 1 away from the open side of the connecting groove 3. The length direction of the mounting base 10 is parallel to the length direction of the outer link plate 1. The mounting base 10 provides a mounting reference for the cutting tool, facilitating quick installation and maintenance of the tool. The mounting base 10 has a positioning hole 11, which facilitates the locking and fixing of the cutting tool with screws. A limit block 12 is integrally formed on the end of the mounting base 10 away from the positioning hole 11, which is beneficial for positioning the external cutting tool.

[0034] The implementation principle of a chain for a mining chain arm saw disclosed in this application is as follows: When assembling the chain, one end of the inner chain plate 2 is inserted into the connecting groove 3, and then the connecting shaft 6 is passed through the mounting hole 4 on the outer chain plate 1 and the pin hole 13 on the inner chain plate 2 in sequence. Then, the inner chain plate 2 is pulled along its length, so that the connecting shaft 6 slides in the mounting hole 4 until the slots 7 at both ends of the connecting shaft 6 abut against the engagement plane 5 on the inner wall of the mounting hole 4. At this time, the connecting shaft 6 cannot rotate circumferentially. Then, the abutting part 8 is inserted into the abutting hole 9, so that the abutting part 8 abuts against the end of the inner chain plate 2, completing the installation of a single chain link. Then, several chain links are connected end to end to form a chain. When disassembling, the abutting part 8 is removed first, and then the inner chain plate 2 is pushed in the opposite direction to disengage the slot 7 from the engagement plane 5. Finally, the connecting shaft 6 and the inner chain plate 2 are pulled out. The installation and disassembly process does not require damage to any parts and is convenient for installing and disassembling the chain, thereby achieving convenient maintenance and cost reduction.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A chain for a mining chainsaw, characterized in that: The system includes an outer link plate (1) and an inner link plate (2). The outer link plate (1) has a connecting groove (3) extending through its length. The connecting groove (3) is open on one side along the width direction of the outer link plate (1). One end of the inner link plate (2) is embedded in the connecting groove (3). The outer link plate (1) has a mounting hole (4). The inner wall of the mounting hole (4) has a snap-fit ​​surface (5). The inner link plate (2) has a connecting shaft (6) passing through it. The two ends of the connecting shaft (6) slide in cooperation with the inner wall of the mounting hole (4). The two ends of the connecting shaft (6) along its axial direction and on the same side have a snap-fit ​​groove (7). The snap-fit ​​surface (5) abuts against the inner wall of the snap-fit ​​groove (7). The outer link plate (1) has an abutment (8) to prevent the connecting shaft (6) from sliding in the mounting hole (4).

2. The chain for a mining chainsaw according to claim 1, characterized in that, The outer chain plate (1) has an abutment hole (9), the abutment member (8) is inserted into the abutment hole (9) and abuts against the inner wall of the abutment hole (9), and the middle section of the abutment member (8) abuts against the inner chain plate (2).

3. The chain for a mining chainsaw according to claim 2, characterized in that, The abutment hole (9) is located on the side of the outer chain plate (1) away from the open side of the connecting groove (3).

4. The chain for a mining chainsaw according to claim 2, characterized in that, The abutment (8) is an open spring pin (81), and the open spring pin (81) is made of spring steel.

5. The chain for a mining chainsaw according to claim 1, characterized in that, The length direction of the mounting hole (4) is parallel to the length direction of the outer chain plate (1).

6. The chain for a mining chainsaw according to claim 1, characterized in that, The outer chain plate (1) is provided with a mounting seat (10) for mounting the tool, and the length direction of the mounting seat (10) is parallel to the length direction of the outer chain plate (1).

7. The chain for a mining chainsaw according to claim 6, characterized in that, The mounting base (10) is provided with a positioning hole (11).

8. The chain for a mining chainsaw according to claim 7, characterized in that, The mounting base (10) has a limiting block (12) at one end along its length direction, and the limiting block (12) is located at the end of the mounting base (10) away from the positioning hole (11).

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