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CN-224221457-U - Wear-resistant hammer head of crusher

CN224221457UCN 224221457 UCN224221457 UCN 224221457UCN-224221457-U

Abstract

The utility model discloses a wear-resistant hammer head of a crusher, which comprises a hammer body, wherein a connecting arm is fixedly arranged on the outer surface of the upper end of the hammer body, a mounting hole is formed in the upper part of the outer surface of one side of the connecting arm, a casing is sleeved on the outer wall of the hammer body, a coating is arranged on the outer wall of the casing, through holes are formed in four corners of the outer surface of the lower end of the hammer body, screw rods are fixedly arranged in four corners of the bottom of an inner cavity of the casing, and screw caps are connected to the upper parts of the screw rods in a threaded manner. According to the wear-resistant hammer of the crusher, the shell is arranged on the outer wall of the hammer body, the shell can be independently replaced after being worn, the maintenance cost is reduced, the outer wall of the shell is provided with the coating, the surface of the shell is coated with the high-hardness material, the coating material is tungsten carbide, and the wear resistance is improved.

Inventors

  • JIANG BIN
  • JIANG HAIYANG

Assignees

  • 如皋市潮源铸造有限公司

Dates

Publication Date
20260512
Application Date
20250409

Claims (6)

  1. 1. The wear-resistant hammer head of the crusher comprises a hammer body (1), wherein a connecting arm (2) is fixedly arranged on the outer surface of the upper end of the hammer body (1), and a mounting hole (3) is formed in the upper portion of the outer surface of one side of the connecting arm (2), and the wear-resistant hammer head is characterized in that a casing (4) is sleeved on the outer wall of the hammer body (1), a coating (5) is arranged on the outer wall of the casing (4), through holes (6) are formed in four corners of the outer surface of the lower end of the hammer body (1), a screw (7) is fixedly arranged at four corners of the bottom of an inner cavity of the casing (4), and a nut (8) is connected with the upper portion of the screw (7) in a threaded manner.
  2. 2. The wear-resistant hammer head of the crusher according to claim 1, wherein the upper end of the screw (7) penetrates through the through hole (6) and extends to the upper part of the hammer body (1).
  3. 3. The wear-resistant hammer head of the crusher according to claim 2, wherein the plating layer (5) is made of tungsten carbide.
  4. 4. The wear-resistant hammer head of the crusher, as set forth in claim 3, wherein the hammer body (1), the connecting arm (2) and the shell (4) are made of high-chromium cast iron.
  5. 5. The wear-resistant hammer head of the crusher, as set forth in claim 4, characterized in that a mounting groove (9) is formed in the middle of the outer surface of the lower end of the hammer body (1), a belleville spring (11) is arranged in the mounting groove (9), a movable block (10) is fixedly mounted on the lower portion of the belleville spring (11), and the outer surface of the upper end of the belleville spring (11) is fixedly connected with the upper portion of the mounting groove (9).
  6. 6. The wear-resistant hammer head of the crusher, as set forth in claim 5, characterized in that the outer wall of the movable block (10) is in sliding connection with the mounting groove (9), and the outer surface of the upper end of the movable block (10) is elastically connected with the upper end of the mounting groove (9) through a belleville spring (11).

Description

Wear-resistant hammer head of crusher Technical Field The utility model relates to the technical field of crushers, in particular to a wear-resistant hammer of a crusher. Background The hammer head is a core component in the crusher and is mainly used for impacting materials in a high-speed rotation mode to crush the materials. When the hammer head in the prior art is used, the following defects exist: 1. The wear resistance is poor, the hammer head is made of high-chromium cast iron generally, and the crusher has higher daily working strength and still has higher wear speed on the surface of the hammer head although the hammer head has certain strength and wear resistance; 2. the maintenance cost is high, and after the abrasion reaches a certain degree, the whole needs to be replaced, so that the maintenance cost is high. For this purpose we propose a wear-resistant hammer head for a crusher. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides the wear-resistant hammer head of the crusher, which has the advantages of low maintenance cost, high wear resistance and the like, and can effectively solve the problems in the background art. (II) technical scheme The technical scheme includes that the wear-resistant hammer head of the crusher comprises a hammer body, wherein a connecting arm is fixedly arranged on the outer surface of the upper end of the hammer body, a mounting hole is formed in the upper portion of the outer surface of one side of the connecting arm, a casing is sleeved on the outer wall of the hammer body, a coating is arranged on the outer wall of the casing, through holes are formed in four corners of the outer surface of the lower end of the hammer body, screw rods are fixedly arranged at four corners of the bottom of an inner cavity of the casing, and screw caps are connected to the upper portions of the screw rods in a threaded mode. Preferably, the upper end of the screw rod penetrates through the through hole and extends out to the upper part of the hammer body. Preferably, the plating material is tungsten carbide. Preferably, the hammer body, the connecting arm and the casing are made of high-chromium cast iron. Preferably, the middle part of the outer surface of the lower end of the hammer body is provided with a mounting groove, a disc spring is arranged in the mounting groove, a movable block is fixedly arranged at the lower part of the disc spring, and the outer surface of the upper end of the disc spring is fixedly connected with the upper part of the mounting groove. Preferably, the outer wall of the movable block is in sliding connection with the mounting groove, and the outer surface of the upper end of the movable block is elastically connected with the upper end of the mounting groove through a belleville spring. (III) beneficial effects Compared with the prior art, the utility model provides the wear-resistant hammer head of the crusher, which has the following beneficial effects: 1. The wear-resistant hammer of the crusher is provided with the casing on the outer wall of the hammer body, and the casing can be independently replaced after being worn, so that the maintenance cost is reduced. 2. According to the wear-resistant hammer of the crusher, the outer wall of the shell is provided with the coating, the surface of the shell is coated with the high-hardness material, and the coating material is tungsten carbide, so that the wear resistance is improved. Drawings Fig. 1 is a schematic diagram of the overall structure of the wear-resistant hammer head of the crusher. Fig. 2 is a schematic structural view of a hammer body and a connecting arm in the wear-resistant hammer head of the crusher. FIG. 3 shows the wear resistance of the crusher according to the utility model schematic partial structure of hammer head. Fig. 4 is a side cross-sectional view of the ram of the wear-resistant hammer head of the crusher of the present utility model. The device comprises a hammer body 1, a connecting arm 2, a mounting hole 3, a casing 4, a coating 5, a coating 6, a through hole 7, a screw rod 8, a nut 9, a mounting groove 10, a movable block 11 and a disc spring. Detailed Description The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand. The embodiment is a wear-resistant hammer head of a crusher. As shown in fig. 1-4, the hammer comprises a hammer body 1, a connecting arm 2 is fixedly arranged on the outer surface of the upper end of the hammer body 1, a mounting hole 3 is formed in the upper portion of the outer surface of one side of the connecting arm 2, a casing 4 is sleeved on the outer wall of the hammer body 1, a coating 5 is arranged on the outer wall of the casing 4, through holes 6 are formed in four corners