Anti-impact cutting pick

Abstract

The utility model belongs to the technical field of tunneling machinery, and discloses an anti-impact cutting pick. The anti-impact cutting pick comprises a mounting cylinder, a placement hole is formed in the center of the mounting cylinder, limiting holes are formed in the left side and the right side of the mounting cylinder correspondingly, the two limiting holes communicate with the placement hole, a cutting pick rod is inserted into the mounting cylinder through the placement hole, and placement grooves are formed in the side faces, corresponding to the limiting holes, of the cutting pick rod correspondingly; and one end of a spring rod is fixedly connected into each of the two placement grooves, and the other end of each spring rod is fixedly connected with a limiting rod. According to the anti-impact cutting pick, the mode that the cutting pick rod and the mounting cylinder are clamped and welded at first is utilized, certain stability is provided for mounting of the cutting pick rod, replacement of the cutting pick rod can be achieved, the connection rigidity between the cutting pick head and the cutting pick rod is improved, the anti-impact head is additionally arranged on the outer side of the cutting pick head, and the anti-impact cutting pick is convenient to use. Therefore, the impact resistance of the whole cutting pick is effectively improved.

Description

Technical Field

[0001] This utility model relates to the technical field of tunneling machinery, specifically to an impact-resistant cutting tooth. Background Technology

[0002] Cutting teeth are tools used in mining, tunneling, underground engineering and other fields. They are usually mounted on mining equipment (such as coal mining machines, tunneling machines, etc.) to cut, crush and excavate hard rocks or coal seams. The shape, material and working principle of the cutting teeth determine its performance and lifespan. They are widely used in mining, underground engineering construction and other industries that require mechanical cutting of hard materials.

[0003] Most cutting teeth currently available are assembled by welding together multiple parts. However, the joints of welded cutting teeth may have low strength and be prone to breakage, resulting in poor overall impact resistance. If breakage occurs during processing, replacement is required, which significantly affects construction efficiency. Therefore, we urgently need an impact-resistant cutting tooth to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an impact-resistant cutting tooth that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an impact-resistant cutting tooth, comprising a mounting cylinder, a placement hole at the center of the mounting cylinder, and limiting holes on the left and right sides of the mounting cylinder, the two limiting holes communicating with the placement hole. A cutting tooth rod is inserted into the mounting cylinder through the placement hole, and a placement groove is provided on the side of the cutting tooth rod corresponding to the limiting hole. One end of a spring rod is fixedly connected to each of the two placement grooves, and the other end of the spring rod is fixedly connected to a limiting rod. The two limiting rods are respectively inserted into the two limiting holes and then welded. A connecting plate is welded to the upper surface of the cutting tooth rod, and a cutting tooth head is welded to the upper surface of the connecting plate.

[0006] With the above technical solution, the mounting cylinder and the cutting tooth rod are plugged in and then welded. When the cutting tooth rod 4 needs to be replaced, it can be replaced by desoldering. The plugging operation between the cutting tooth rod and the mounting cylinder can make the cutting tooth rod more stable. The contact surface between the lower surface of the connecting plate and the mounting cylinder is also welded and fixed. The cutting tooth head and the connecting plate are heightened and connected by special-shaped blocks, which improves the support of the cutting tooth head.

[0007] Preferably, a plurality of irregularly shaped blocks are fixedly connected to the upper surface of the connecting disk, and the irregularly shaped blocks are arranged in a ring and at equal intervals on the connecting disk, and the irregularly shaped blocks are also fixedly connected to the cutting tooth head.

[0008] Through the above technical solution, the special-shaped block of this application strengthens the overall rigidity of the cutting tooth and increases the connection area with the cutting tooth head, thereby improving resistance.

[0009] Preferably, an annular groove is provided on the flat position above the cutting tooth head, and an impact-resistant head is inserted into the annular groove, and the impact-resistant head is also welded to the contact surface of the cutting tooth head.

[0010] Through the above technical solution, the design of the impact-resistant head in this application is used to enhance the impact resistance of the cutting tooth head.

[0011] Preferably, the mounting cylinder also has a mounting slot.

[0012] Preferably, the impact-resistant head and the cutting tooth head are made of the same material, both being high-hardness alloy steel.

[0013] Preferably, the irregularly shaped block has a twisted design and is made of tungsten steel.

[0014] By adopting the aforementioned technical solution, the beneficial effects of this utility model are:

[0015] This impact-resistant cutting tooth utilizes a method of first snapping the cutting tooth rod to the mounting cylinder and then welding it, which provides a certain degree of stability for the installation of the cutting tooth rod, allows for the replacement of the cutting tooth rod, improves the connection rigidity between the cutting tooth head and the cutting tooth rod, and adds an impact-resistant head to the outside of the cutting tooth head, thereby effectively improving the overall impact resistance of the cutting tooth. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a side view of the structure of this utility model;

[0019] Figure 4 This utility model Figure 3 Schematic diagram of the cross-sectional structure of the middle BB.

[0020] In the diagram: 1. Mounting cylinder; 2. Placement hole; 3. Limiting hole; 4. Cutting tooth rod; 5. Placement groove; 6. Spring rod; 7. Limiting rod; 8. Connecting plate; 9. Cutting tooth head; 10. Irregular block; 11. Annular groove; 12. Impact-resistant head; 13. Mounting slot. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 This utility model provides a technical solution: an impact-resistant cutting tooth, including a mounting cylinder 1, a placement hole 2 at the center of the mounting cylinder 1, and limit holes 3 on the left and right sides of the mounting cylinder 1, which are connected to the placement hole 2. A cutting tooth rod 4 is inserted into the mounting cylinder 1 through the placement hole 2, and a placement groove 5 is opened on the side of the cutting tooth rod 4 corresponding to the limit hole 3. One end of a spring rod 6 is fixedly connected to each of the two placement grooves 5, and the other end of the spring rod 6 is fixedly connected to a limit rod 7. The two limit rods 7 are respectively inserted into the two limit holes 3 and then welded. A connecting plate 8 is welded to the upper surface of the cutting tooth rod 4, and a cutting tooth head 9 is welded to the upper surface of the connecting plate 8.

[0023] The mounting cylinder 1 and the cutting tooth rod 4 are plugged in and then welded together. When the cutting tooth rod 4 needs to be replaced, it can be replaced by desoldering. The plugging operation between the cutting tooth rod 4 and the mounting cylinder 1 makes the installation of the cutting tooth rod 4 more stable. The lower surface of the connecting plate 8 and the contact surface with the mounting cylinder 1 are also welded and fixed. The cutting tooth head 9 and the connecting plate 8 are raised and connected by the special-shaped block 10, which improves the support of the cutting tooth head 9.

[0024] Several irregular blocks 10 are fixedly connected to the upper surface of the connecting plate 8. The irregular blocks 10 are arranged in a ring and are evenly spaced on the connecting plate 8. The irregular blocks 10 are also fixedly connected to the cutting tooth head 9.

[0025] The irregular block 10 of this application strengthens the overall rigidity of the cutting tooth and increases the connection area with the cutting tooth head 9, thereby improving resistance.

[0026] An annular groove 11 is provided on the flat position above the cutting tooth head 9, and an impact-resistant head 12 is inserted into the annular groove 11. The impact-resistant head 12 is also welded to the contact surface of the cutting tooth head 9.

[0027] The impact-resistant head 12 of this application is designed to enhance the impact resistance of the cutting head 9.

[0028] The mounting cylinder 1 also has a mounting slot 13.

[0029] The impact-resistant head 12 and the cutting tooth head 9 are made of the same material, both being high-hardness alloy steel.

[0030] The irregular block 10 has a twisted design and is made of tungsten steel.

[0031] During installation, the impact-resistant cutting tooth is installed by welding the cutting tooth rod 4 to the connecting plate 8, welding several irregularly shaped blocks 10 at equal intervals to the connecting plate 8, welding the cutting tooth head 9 to the connecting plate 8, and then welding it to the irregularly shaped blocks 10. The impact-resistant head 12 is then inserted into the annular groove 11 on the cutting tooth head 9, ensuring that the impact-resistant head 12 contacts and fits the cutting tooth head 9. After stable installation, the impact-resistant head 12 is welded to the cutting tooth head 9. The cutting tooth rod 4 is then inserted into the mounting cylinder 1. Before insertion, the limiting rod 7, in conjunction with the spring rod 6, is pressed into the placement groove 5. When the side of the limiting rod 7 and the cutting tooth rod 4 are on the same plane, the cutting tooth rod 4 is inserted into the mounting cylinder 1. When the limiting rod 7 moves to the position of the limiting hole 3, the spring rod 6 releases the limiting rod 7, allowing the limiting rod 7 to be inserted into the limiting hole 3. Finally, the gap is welded to complete the installation.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant cutting tooth, comprising a mounting sleeve (1), characterized in that: The mounting cylinder (1) has a placement hole (2) at its center. Limiting holes (3) are opened on the left and right sides of the mounting cylinder (1), and the two limiting holes (3) are connected to the placement hole (2). A cutting rod (4) is inserted into the mounting cylinder (1) through the placement hole (2). The cutting rod (4) and the side of the corresponding limiting hole (3) are provided with placement grooves (5). One end of a spring rod (6) is fixedly connected to each of the two placement grooves (5), and the other end of the spring rod (6) is fixedly connected to a limiting rod (7). The two limiting rods (7) are respectively inserted into the two limiting holes (3) and then welded. A connecting plate (8) is welded to the upper surface of the cutting rod (4), and a cutting head (9) is welded to the upper surface of the connecting plate (8).

2. The impact-resistant cutting tooth according to claim 1, characterized in that: The upper surface of the connecting disk (8) is fixedly connected with several irregular blocks (10), and the irregular blocks (10) are arranged in a ring and at equal intervals on the connecting disk (8). The irregular blocks (10) are also fixedly connected to the cutting tooth head (9).

3. The impact-resistant cutting tooth according to claim 2, characterized in that: An annular groove (11) is provided on the flat position above the cutting tooth head (9), and an impact-resistant head (12) is inserted into the annular groove (11), and the impact-resistant head (12) is also welded to the contact surface of the cutting tooth head (9).

4. The impact-resistant cutting tooth according to claim 3, characterized in that: The mounting cylinder (1) is also provided with a mounting slot (13).

5. The impact-resistant cutting tooth according to claim 4, characterized in that: The impact-resistant head (12) and the cutting tooth head (9) are made of the same material, both being high-hardness alloy steel.

6. The impact-resistant cutting tooth according to claim 5, characterized in that: The irregular block (10) has a twisted design and is made of tungsten steel.

Images