Impact crushing hammer head with locally replaceable wear-resistant layer

Abstract

The utility model discloses an impact breaking hammer head with a locally replaceable wear-resistant layer, which comprises an upper hammer handle and a hammer head body, a fixing hole is arranged on the side end face of the upper hammer handle, a connecting block is mounted on the lower end face of the upper hammer handle, a mounting block is mounted on the hammer head body, and the mounting block is connected with the fixing hole. The lower end face of the connecting block is provided with a mounting groove used in cooperation with the mounting block. A wear-resisting layer is arranged on the outer side of the hammer head body and composed of three wear-resisting pieces. In the using process of the hammer head, due to the arrangement of the wear-resisting pieces, the wear-resisting layer is divided into the three wear-resisting pieces to be installed on the hammer head body, when the wear-resisting piece at one position is damaged, the damaged wear-resisting piece can be detached and replaced, and the fastener can be conveniently hidden through the rotating groove; and the surface of the hammer head body does not protrude, so that the practicability of the impact crushing hammer head is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crusher hammer heads, in particular to an impact crushing hammer head with a partially replaceable wear-resistant layer. Background Art

[0002] Crusher is a new type of high-efficiency crushing equipment, which has the following characteristics: small size, simple structure, large crushing ratio, low energy consumption, large production capacity, uniform product particle size, and selective ore crushing. It is a very promising equipment. When the hammer crusher is working, the motor drives the rotor to rotate at high speed, and the material enters the crushing chamber evenly. The high-speed rotating hammer on the rotor impacts, shears, and tears the material to crush it.

[0003] In the prior art, the publication number "CN105170243A" discloses a hammer crusher hammer head, which is provided with a round through hole for installing a heating rod at the hammer end, so that the hammer end can be heated and welded, which can significantly improve the welding performance; the wear-resistant layer is welded on the top of the hammer end and in the square groove, which can increase the firmness of the welding and effectively avoid the damage to the equipment caused by the fall of the wear-resistant layer. The existing hammer crusher hammer head made of high manganese steel has the problem that the impact phase change hardening ability cannot be fully exerted, the wear resistance is low, and the service life is short.

[0004] However, the existing technology still has major deficiencies, such as:

[0005] When the crusher is operating, the hammer head is used to hit the ore to break it, which will make the hammer head a consumable part that wears faster. When the wear-resistant layer of a part on the hammer head is damaged, it will cause uneven wear of the wear-resistant layer on the hammer head. When the wear-resistant layer is unevenly worn, the entire wear-resistant layer needs to be replaced or the hammer head needs to be replaced, which will cause the body of the hammer head to be higher, thus affecting the practicability of the impact crushing hammer head. Utility Model Content

[0006] The utility model aims to provide an impact crushing hammer head with a partially replaceable wear-resistant layer, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] An impact crushing hammer head with a partially replaceable wear-resistant layer comprises an upper hammer handle and a hammer head body, wherein a fixing hole is provided on the side end surface of the upper hammer handle, a connecting block is installed on the lower end surface of the upper hammer handle, a mounting block is installed on the hammer head body, and a mounting groove is provided on the lower end surface of the connecting block for use with the mounting block;

[0009] A wear-resistant layer is arranged on the outer side of the hammer body, and the wear-resistant layer is composed of three wear-resistant sheets. The three wear-resistant sheets can be used to wrap the side end surface of the hammer body.

[0010] Preferably, a rotation groove is formed on each of the three wear-resistant plates, and a first threaded hole is formed at the inner bottom of the rotation groove.

[0011] Preferably, a first fastening bolt is threadedly mounted on the first threaded hole, and four end faces of the hammer body are each provided with a second threaded hole used in conjunction with the first threaded hole.

[0012] Preferably, a first threaded through groove is formed on the connecting block, and a second fastening bolt is threadedly mounted on the first threaded through groove.

[0013] Preferably, the mounting block is provided with a second threaded through groove for use in conjunction with the first threaded through groove.

[0014] Preferably, a square frame plate is fixedly mounted on the side end surface of the connecting block, and a clamping block is fixedly mounted on the lower end surface of the square frame plate.

[0015] Preferably, a square frame plate is fixedly mounted on the side end surface of the connecting block, and a clamping block is fixedly mounted on the lower end surface of the square frame plate.

[0016] Preferably, the number of the card blocks and the number of the card slots are the same, and both are four.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. Through the setting of the wear-resistant sheet, the wear-resistant layer is divided into three wear-resistant sheets and installed on the hammer body. When the wear-resistant sheet at one part is damaged, the damaged wear-resistant sheet can be removed and replaced. The fasteners can be easily hidden through the rotating groove, so that there will be no bulge on the surface of the hammer body, thereby improving the practicality of the counter-attack crushing hammer;

[0019] 2. Through the setting of the square frame plate, when the wear-resistant sheet is installed on the hammer body, the slot on the wear-resistant sheet is aligned with the block on the square frame plate and locked. By inserting the block into the slot, the firmness between the wear-resistant sheet and the connecting block can be enhanced, avoiding the separation between the wear-resistant sheet and the hammer body, thereby further improving the practicality of the impact crushing hammer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional structural diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the utility model without a wear-resistant layer;

[0022] Figure 3 It is a schematic diagram of the structure in which the upper hammer handle and the hammer head body are separated in the utility model;

[0023] Figure 4 It is a schematic diagram of the structure in which the wear-resistant sheets are separated in the utility model.

[0024] In the figure: 1. upper hammer handle; 2. hammer head body; 3. fixing hole; 4. connecting block; 5. mounting block; 6. wear-resistant plate; 7. rotating groove; 8. first threaded hole; 9. first fastening bolt; 10. second threaded hole; 11. first threaded through groove; 12. second fastening bolt; 13. second threaded through groove; 14. square frame plate; 15. clamping block; 16. clamping groove. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 , the utility model provides a technical solution:

[0027] Embodiment 1:

[0028] A counter-attack crushing hammer head with a partially replaceable wear-resistant layer, comprising an upper hammer handle 1 and a hammer head body 2, a fixing hole 3 is provided on the side end surface of the upper hammer handle 1, a connecting block 4 is installed on the lower end surface of the upper hammer handle 1, a mounting block 5 is installed on the hammer head body 2, a mounting groove used in conjunction with the mounting block 5 is provided on the lower end surface of the connecting block 4, a first threaded through groove 11 is provided on the connecting block 4, a second fastening bolt 12 is threadedly installed on the first threaded through groove 11, a second threaded through groove 13 used in conjunction with the first threaded through groove 11 is provided on the mounting block 5, and the hammer head body 2 is conveniently installed on the connecting block 4 by fastening the thread 2, so as to form a completed counter-attack crushing hammer head;

[0029] A wear-resistant layer is provided on the outer side of the hammer body 2, and the number of wear-resistant sheets 6 can be adjusted according to personnel needs. The wear-resistant layer is composed of three wear-resistant sheets 6, and the three wear-resistant sheets 6 are convenient for wrapping the side end surface of the hammer body 2. A rotation groove 7 is provided on the three wear-resistant sheets 6, and a first threaded hole 8 is provided on the inner bottom of the rotation groove 7. A first fastening bolt 9 is threadedly installed on the first threaded hole 8. Second threaded holes 10 used in conjunction with the first threaded holes 8 are provided on the four end surfaces of the hammer body 2. The wear-resistant sheet 6 can be conveniently installed on the hammer body 2 through the fastening bolts.

[0030] In this embodiment, the wear-resistant layer is divided into three wear-resistant sheets 6 installed on the hammer body 2. When the wear-resistant sheet 6 at one position is damaged, the damaged wear-resistant sheet 6 can be removed and replaced. The fasteners can be easily hidden by rotating the groove 7, so that no bulges will appear on the surface of the hammer body 2, thereby improving the practicality of the impact crushing hammer.

[0031] Embodiment 2:

[0032] On the basis of Example 1, in order to avoid the separation between the wear-resistant sheet 6 and the hammer head, a square frame plate 14 is used to avoid this phenomenon. The side end face of the connecting block 4 is fixedly installed with a square frame plate 14, and the square frame plate 14 just fits on the upper end faces of the three patches. A clamping block 15 is fixedly installed on the lower end face of the square frame plate 14. The upper end faces of the three wear-resistant sheets 6 are all provided with clamping grooves 16 used in conjunction with the clamping blocks 15. The number of clamping blocks 15 and clamping grooves 16 is the same, and there are four of them, which enhances the firmness between the square frame plate 14 and the three wear-resistant sheets 6.

[0033] In this embodiment, when the wear-resistant plate 6 is installed on the hammer body 2, the slot 16 on the wear-resistant plate 6 is aligned with the block 15 on the square frame plate 14 and locked. By inserting the block 15 into the slot 16, the firmness between the wear-resistant plate 6 and the connecting block 4 can be enhanced, and the wear-resistant plate 6 and the hammer body 2 can be avoided from separating, thereby further improving the practicality of the impact crushing hammer.

[0034] Working principle:

[0035] When installing the impact crushing hammer, the hammer body 2 is inserted into the installation groove of the connecting block 4 through the installation block 5, and then installed in the first threaded through groove 11 and the second threaded through groove 13 through the second fastening bolt 12. The hammer body 2 is fastened by the second fastening bolt 12 to facilitate the installation of the hammer body 2 on the connecting block 4 to form a completed impact crushing hammer. Then, the three wear-resistant sheets 6 are attached to the hammer body 2, so that the first threaded holes 8 on the three wear-resistant sheets 6 and the second threaded holes 10 on the hammer body 2 are in the same direction, and then fixed by the first fastening bolt 9, and finally installed on the crusher shaft through the fixing hole 3;

[0036] When one of the three wear-resistant sheets 6 is damaged, the first fastening bolt 9 corresponding to the damaged wear-resistant sheet 6 can be removed, and then a new wear-resistant sheet 6 can be reinstalled.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An impact crushing hammer head with a partially replaceable wear-resistant layer, comprising an upper hammer handle (1) and a hammer head body (2), characterized in that: The side end surface of the upper hammer handle (1) is provided with a fixing hole (3), the lower end surface of the upper hammer handle (1) is provided with a connecting block (4), the hammer head body (2) is provided with a mounting block (5), and the lower end surface of the connecting block (4) is provided with a mounting groove for use with the mounting block (5); The outer side of the hammer body (2) is provided with a wear-resistant layer, and the wear-resistant layer is composed of three wear-resistant sheets (6). The three wear-resistant sheets (6) can be used to wrap the side end surface of the hammer body (2).

2. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 1, characterized in that: The three wear-resistant plates (6) are each provided with a rotation groove (7), and the inner bottom of the rotation groove (7) is provided with a first threaded hole (8).

3. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 2, characterized in that: A first fastening bolt (9) is threadedly mounted on the first threaded hole (8), and four end faces of the hammer body (2) are each provided with a second threaded hole (10) for use in conjunction with the first threaded hole (8).

4. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 1, characterized in that: The connection block (4) is provided with a first threaded through groove (11), and a second fastening bolt (12) is threadedly mounted on the first threaded through groove (11).

5. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 4, characterized in that: The mounting block (5) is provided with a second threaded through groove (13) for use in conjunction with the first threaded through groove (11).

6. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 2, characterized in that: A square frame plate (14) is fixedly mounted on the side end surface of the connection block (4), and a clamping block (15) is fixedly mounted on the lower end surface of the square frame plate (14).

7. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 6, characterized in that: The upper end surfaces of the three wear-resistant sheets (6) are each provided with a clamping groove (16) for use in conjunction with the clamping block (15).

8. The impact crushing hammer head with a partially replaceable wear-resistant layer according to claim 7, characterized in that: The number of the card blocks (15) and the number of the card slots (16) are the same, and both are four.

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