Hammerhead structure of mining crusher

Abstract

The utility model discloses a hammerhead structure of a mining crusher, which relates to the technical field of underground crushers, and comprises a hammerhead body, the end part of the hammerhead body is provided with a limiting groove, an alloy block is clamped in the limiting groove, the lower end surface of the alloy block is attached to the inner wall of the limiting groove, the hammerhead body is detachably connected with the alloy block, and the alloy block is clamped in the limiting groove. Therefore, the alloy block is additionally arranged at the end part of the hammer head body, so that the wear resistance of the hammer head body is improved, the replacement step is simplified, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of underground crushers, in particular to a hammer head structure of a mining crusher. Background Art

[0002] Crusher is a commonly used equipment underground. Its main principle is to drive the high-speed rotation of the crushing hammer head through the crushing shaft to impact large volumes of coal into smaller volumes to meet transportation needs.

[0003] The hammer head of the crusher is an important component. Frequent impacts will affect the service life of the hammer head. The general maintenance procedure is to replace the entire hammer head. In actual use, it is found that only the end of the hammer head that contacts the coal is severely worn, while the rear part of the hammer head is basically intact. Therefore, replacing the entire hammer head is not only difficult due to the weight of the hammer head, but also causes a certain waste of resources. Utility Model Content

[0004] In order to overcome the above-mentioned defects, the purpose of the utility model is to provide a hammer head structure for a mining crusher. The utility model increases the wear resistance of the hammer head body by adding an alloy block at the end of the hammer head body, simplifies the replacement steps and reduces the maintenance cost.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a hammer head structure of a mining crusher, characterized in that it includes a hammer head body, the end of the hammer head body is provided with a limiting groove, an alloy block is clamped in the limiting groove, the lower end surface of the alloy block is in contact with the inner wall of the limiting groove, and the hammer head body and the alloy block are detachably connected.

[0006] Preferably, the alloy block comprises a first alloy block and a second alloy block, and the first alloy block and the second alloy block are both fixedly connected to the hammer body via countersunk screws.

[0007] Preferably, the first alloy block and the second alloy block are of the same size and model, and the abutment between the first alloy and the second alloy are both in an arc shape that matches the hammer body.

[0008] Preferably, the outer end surface of the alloy block is higher than the outer end surface of the hammer body.

[0009] After adopting the above technical solution, the beneficial technical effects achieved by the utility model are:

[0010] 1. Since a limiting groove is milled at the end of the hammer head for installing the alloy block, the hardness of the alloy block is significantly better than that of the hammer head body, so the service life of the hammer head body can be increased, and the number of replacement times of the hammer head body is reduced, thereby improving the processing efficiency, which is especially suitable for the environment with poor lighting in the mine.

[0011] 2. Since the alloy block is composed of two first alloy blocks and second alloy blocks of the same model and size, only one mold is needed, and the interchangeability is strong. Moreover, the weight of the alloy block is obviously lighter than the hammer body, and when replacing it, it can be completed without the assistance of lifting machinery, which makes maintenance more convenient and has a higher safety factor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a reference schematic diagram of the hammer structure of the utility model mining crusher;

[0013] Figure 2 yes Figure 1 Reference map in the A direction;

[0014] In the figure, 1, hammer body; 11, limit groove; 12, countersunk screw;

[0015] 2. Alloy block; 21. First alloy block; 22. Second alloy block. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0017] See also Figure 1-Figure 2 The utility model provides a mining crusher hammer structure, including a hammer body 1, a limit groove 11 is provided at the end of the hammer body 1, an alloy block 2 is clamped in the limit groove 11, the lower end surface of the alloy block 2 fits the inner wall of the limit groove 11, and the hammer body 1 is detachably connected to the alloy block 2. In order to facilitate replacement, the hammer body 1 is generally connected and fixed to the power equipment by bolts. When crushing coal with a large mass, the end of the hammer body 1 is in direct contact with the coal. After the alloy block 2 is added, a protective cover is formed, and the hardness and wear resistance are greatly improved. In actual use, in addition to adopting a detachable type, the alloy block 2 can also be directly cast into an integral part with the hammer body 1 when casting the hammer body 1, so that almost no additional secondary processing and secondary installation are required. The above implementation method is only applicable to improving the service life of the hammer body 1. When replacing, the entire hammer body 1 still needs to be replaced. The material of the alloy block 2 is generally different from that of the hammer body 1. During the casting process, a certain amount of rare metal elements will be added to it to improve the hardness and wear resistance.

[0018] The alloy block 2 of the utility model includes a first alloy block 21 and a second alloy block 22, and the first alloy block 21 and the second alloy block 22 are fixedly connected to the hammer body 1 by countersunk screws 12. The alloy block 2 is formed by splicing the first alloy block 21 and the second alloy block 22, so that it is easier to fit the end of the hammer body 1. After the first alloy block 21 and the second alloy block 22 are fitted to the hammer body 1, they are directly fixed with countersunk screws 12 or bolts to improve the service life of the hammer body 1.

[0019] The first alloy block 21 and the second alloy block 22 of the utility model have the same size and model, and the abutment between the first alloy block 21 and the second alloy block 22 is an arc shape adapted to the hammer body 1. The arc-shaped first alloy block is adapted to the shape of the hammer body 1, and after installation, it does not affect the use of the hammer body 1.

[0020] The end face of the alloy block of the utility model is higher than the outer end face of the hammer body 1. The alloy block 2 is relatively high and directly contacts the coal. The function of the limiting groove 11 is to prevent the movement of the alloy block 2 and increase stability.

[0021] Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, technicians familiar with the field can make various corresponding changes and deformations based on the present invention, but these corresponding changes and deformations should all fall within the scope of protection of the claims attached to the present invention.

Claims

1. A hammer head structure for a mining crusher, characterized in that: It comprises a hammer body, the end of which is provided with a limiting groove, an alloy block is clamped in the limiting groove, the lower end surface of the alloy block is in contact with the inner wall of the limiting groove, and the hammer body is detachably connected to the alloy block.

2. The hammer head structure of a mining crusher according to claim 1, characterized in that: The alloy block comprises a first alloy block and a second alloy block, and the first alloy block and the second alloy block are both fixedly connected to the hammer body via countersunk screws.

3. The hammer head structure of a mining crusher according to claim 2, characterized in that: The first alloy block and the second alloy block have the same size and model, and the abutment between the first alloy and the second alloy are both in an arc shape that matches the hammer body.

4. The hammer head structure of a mining crusher according to claim 1, characterized in that: The outer end surface of the alloy block is higher than the outer end surface of the hammer body.

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