A ring hammer for a ring hammer crusher

Abstract

The utility model relates to a broken machine accessory technical field discloses a ring hammer for ring hammer type broken machine, include: base cylinder, the outer wall of base cylinder is equipped with hammer body, hammer body is connected with base cylinder through connecting unit. This ring hammer for ring hammer type broken machine, through the cooperation between base cylinder, hammer body and connecting unit, the bolt is connected with square column thread and is in close contact with base cylinder through T -type hole and runs through base cylinder, completes hammer body and base cylinder installation, after base cylinder is installed on broken machine fixed axle and starts operation, when operating, hammer body and material violent impact, buffer sleeve compression deformation, buffer impact force, reduce hammer body damage and connecting part loose probability, if hammer body is damaged and is replaced after long -term use, remove base cylinder, anticlockwise rotation bolt makes it with square column separation, can remove hammer body and replace, do not need to replace base cylinder, reduce metal waste, reduce cost, can take out square column and reuse during, and check the wear condition of buffer sleeve, replace if wear seriously.

Description

Technical Field

[0001] This utility model relates to the technical field of crusher accessories, specifically a ring hammer for a ring hammer crusher. Background Technology

[0002] Ring hammer crushers are widely used in mining, coal, building materials, and chemical industries. Their main function is to perform medium and fine crushing of various medium-hard and brittle materials. During operation, the ring hammers are the key components that directly contact the material and carry out the crushing action. Their performance directly affects the crushing efficiency, output particle size, overall stability, and service life of the equipment.

[0003] Currently, the most common ring hammers on the market are one-piece metal structures, mainly divided into two types: annular and toothed. Annular ring hammers have a relatively smooth surface and crush materials primarily through impact and compression during the crushing process. They are suitable for crushing materials with relatively low hardness and good brittleness, such as coal and limestone. Toothed ring hammers, on the other hand, have sharp tooth-like structures on their surface, which enhances the shearing and tearing effect on materials. They are more suitable for crushing materials with higher hardness and toughness, such as iron ore and shale. In actual use, users will choose the appropriate type of ring hammer based on the different characteristics of the materials being crushed.

[0004] However, existing one-piece metal structure ring hammers have certain drawbacks. Firstly, because the ring hammers directly bear the enormous impact and friction forces of the material during crushing, their wear rate is relatively fast, making them typical consumables. When the ring hammers wear down to a certain extent, the crushing effect will significantly decrease, failing to meet production requirements, necessitating replacement. However, the existing one-piece structure requires replacing the entire ring hammer, resulting in significant waste of metal materials and increased replacement costs. Secondly, most existing ring hammer connection methods employ relatively simple fixing methods, lacking effective buffering design. During high-speed crusher operation, the violent collision between the ring hammers and the material generates substantial impact forces, which are directly transmitted to the connection between the ring hammers and the rotor. Prolonged use can easily lead to loosening and damage of the connection, even causing safety accidents such as ring hammer detachment. Simultaneously, the lack of buffering design also accelerates the wear of the ring hammers themselves, reducing their service life. Utility Model Content

[0005] The purpose of this invention is to provide a ring hammer for a ring hammer crusher to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a ring hammer for a ring hammer crusher, comprising: a base cylinder, a hammer body fitted on the outer wall of the base cylinder, the hammer body being connected to the base cylinder via a connecting unit, the connecting unit comprising: multiple square grooves, the multiple square grooves being equidistantly arranged in an annular pattern on the inner wall of the hammer body, a square column being inserted inside the square groove, multiple buffer sleeves being fitted on the outer wall of the square column, the outer wall of the buffer sleeves being abutted against the inner wall of the square groove, and multiple T-shaped holes being equidistantly arranged in an annular pattern on the inner wall of the base cylinder, bolts being provided inside the T-shaped holes, the bolts being threadedly connected to the square columns through the T-shaped holes and penetrating the base cylinder.

[0007] Preferably, the outer wall of the square column is provided with multiple slots, and the inner wall of the slots abuts against the buffer sleeve.

[0008] Preferably, the square column has a U-shaped hole on its surface facing the bolt.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the ring hammer for the ring hammer crusher has the following advantages over traditional technology: Through the cooperation between the base cylinder, hammer body, and connecting unit, the operator first places multiple buffer sleeves into the slots on the outer wall of the square column, then inserts the square column with the buffer sleeves into the square slot. Next, according to the strength of the material to be crushed, select annular or toothed hammer bodies to fit on the outer wall of the base cylinder, aligning the T-hole with the center of the square slot. Use bolts to thread the base cylinder and square column through the T-hole and tighten them against the base cylinder, completing the installation of the hammer body and base cylinder. After that, install the base cylinder on the fixed shaft of the crusher and start operation. During operation, the hammer body violently impacts the material, and the buffer sleeve compresses and deforms, buffering the impact force and reducing the chance of hammer body damage and loosening of the connection parts. If the hammer body is damaged after long-term use and needs to be replaced, remove the base cylinder, turn the bolt counterclockwise to separate it from the square column, and the hammer body can be removed for replacement without replacing the base cylinder, reducing metal waste and lowering costs. During this period, the square column can be removed for reuse, and the wear of the buffer sleeve can be checked. If the wear is severe, it should be replaced. Attached Figure Description

[0010] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 for Figure 1 Side sectional view of the central base tube; Figure 4 for Figure 2 A three-dimensional structural diagram of a Chinese column.

[0012] In the diagram: 1. Base cylinder, 2. Hammer body, 3. Square groove, 4. Square column, 5. Buffer sleeve, 6. T-hole, 7. Bolt, 8. U-hole, 9. Slot. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.

[0014] Please see Figures 1-4 This utility model provides a technical solution: a ring hammer for a ring hammer crusher, comprising: a base cylinder 1, a hammer body 2 fitted on the outer wall of the base cylinder 1, the hammer body 2 being connected to the base cylinder 1 via a connecting unit, the connecting unit comprising: multiple square grooves 3, the multiple square grooves 3 being equidistantly arranged in an annular pattern on the inner wall of the hammer body 2, a square column 4 being inserted inside the square grooves 3, multiple buffer sleeves 5 being fitted on the outer wall of the square column 4, the outer wall of the buffer sleeves 5 being abutted against the inner wall of the square grooves 3, and multiple T-shaped holes 6 being equidistantly arranged in an annular pattern on the inner wall of the base cylinder 1, bolts 7 being provided inside the T-shaped holes 6, the bolts 7 being threadedly connected to the square column 4 through the T-shaped holes 6 and penetrating the base cylinder 1.

[0015] In the specific implementation process, it is worth noting that the base cylinder 1, as the basic support component of the ring hammer, is made of high-strength metal materials such as alloy steel to ensure that it has sufficient strength and rigidity when the crusher is running at high speed and under huge impact forces. The hammer body 2 is a key component that directly participates in the crushing of materials. Depending on different crushing requirements, its shape is designed as ring or toothed. The ring hammer body is suitable for crushing materials more uniformly, while the toothed hammer body can generate stronger impact and shearing action on the materials, improving crushing efficiency. The opening of the square groove 3 must ensure that the square column 4 can be inserted. The square column 4 is also made of high-strength materials. The buffer sleeve 5 is generally made of rubber or polyurethane material with good elasticity and wear resistance. It can undergo elastic deformation when subjected to impact, playing a buffering role. The T-hole 6 allows the bolt 7 to pass through the base cylinder 1, and at the same time ensures the connection strength between the bolt 7 and the base cylinder 1 and the square column 4. The bolt 7 is made of high-strength bolt to ensure that it will not loosen during the operation of the crusher.

[0016] Furthermore, the outer wall of the square column 4 is provided with multiple slots 9, and the inner wall of the slots 9 abuts against the buffer sleeve 5.

[0017] In the specific implementation process, it is worth noting that the slot 9 is opened to more accurately position and fix the buffer sleeve 5, and to prevent the buffer sleeve 5 from sliding or shifting on the square post 4. When installing the buffer sleeve 5, if necessary, use an adapter tool such as needle-nose pliers to press the buffer sleeve 5 into the slot 9 to ensure that the buffer sleeve 5 is completely fitted with the inner wall of the slot 9, avoid gaps, and thus ensure the buffering effect.

[0018] Furthermore, a U-shaped hole 8 is provided on the surface of the square column 4 facing the bolt 7.

[0019] In the specific implementation process, it is worth noting that when it is necessary to pull the square column 4 out of the square groove 3, the U-shaped hole 8 can be pierced by steel wire or strapping. By applying force to pull the steel wire or strapping, the square column 4 can be pulled out of the square groove 3 more effectively.

[0020] Working principle: Installation and adaptation principles: The operator first places multiple buffer sleeves 5 into the slots 9 opened on the outer wall of the square column 4, so that the buffer sleeves 5 are installed on the outer wall of the square column 4. Then, the square column 4 with the buffer sleeves 5 is completely embedded into the square channel 3. Next, according to the strength of the material to be crushed, a suitable type of hammer 2 (ring or toothed) is selected and placed on the outer wall of the base cylinder 1. During this process, it is necessary to ensure that the T-hole 6 is aligned with the center point of the square channel 3. Then, a bolt 7 is used to pass through the T-hole 6, penetrate the base cylinder 1, and connect to the square column 4 with threads, so that the bolt 7 is fully abutted against the base cylinder 1, thereby completing the installation operation between the hammer 2 and the base cylinder 1. Finally, the base cylinder 1 is installed on the fixed shaft of the ring hammer crusher, so that the ring hammer is adapted to the crusher as a whole, preparing for subsequent crushing operations.

[0021] Buffer protection principle: When the ring hammer crusher starts up and crushes the input material, a sudden and violent impact occurs between the hammer 2 and the material. At this time, the buffer sleeve 5 will play a role. Since the buffer sleeve 5 is installed at the indirect contact position between the square column 4 and the hammer 2, the impact force generated by the impact will be transmitted to the buffer sleeve 5. The buffer sleeve 5 will undergo a certain degree of compression deformation. This deformation can absorb and disperse part of the impact force, buffer the impact force on the hammer 2, thereby reducing the probability of damage to the hammer 2 and loosening of the connection parts to a certain extent, extending the service life of the hammer 2, and ensuring the stable operation of the crushing operation.

[0022] Replacement and maintenance principles: After prolonged use, if the hammer body 2 is damaged and needs to be replaced, the operator only needs to remove the base cylinder 1 from the fixed shaft of the ring hammer crusher, and then turn the bolt 7 counterclockwise to separate the bolt 7 from the square column 4. The hammer body 2 can then be easily removed from the outer wall of the base cylinder 1 for replacement. This process does not require replacing the base cylinder 1, reducing the waste of metal materials and effectively reducing replacement costs. At the same time, the operator can remove the square column 4 for reuse. The operator also needs to check the wear of the buffer sleeve 5. If the buffer sleeve 5 is severely worn, it needs to be replaced in time to ensure that the ring hammer can play a normal buffering and protective role and maintain the crusher's good operating condition.

[0023] 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. A ring hammer for a ring hammer crusher, comprising: The base cylinder (1) is characterized in that: a hammer body (2) is fitted on the outer wall of the base cylinder (1), and the hammer body (2) is connected to the base cylinder (1) through a connecting unit. The connecting unit includes: multiple square grooves (3), which are equidistantly arranged in an annular pattern on the inner wall of the hammer body (2). A square column (4) is inserted inside the square groove (3). Multiple buffer sleeves (5) are fitted on the outer wall of the square column (4). The outer wall of the buffer sleeve (5) abuts against the inner wall of the square groove (3). Multiple T-shaped holes (6) are equidistantly arranged in an annular pattern on the inner wall of the base cylinder (1). Bolts (7) are provided inside the T-shaped holes (6). The bolts (7) pass through the T-shaped holes (6) and are threadedly connected to the square column (4) through the base cylinder (1).

2. The ring hammer for a ring hammer crusher according to claim 1, characterized in that: The outer wall of the square column (4) is provided with multiple slots (9), and the inner wall of the slots (9) abuts against the buffer sleeve (5).

3. The ring hammer for a ring hammer crusher according to claim 1, characterized in that: The square column (4) has a U-shaped hole (8) on its surface facing the bolt (7).

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