Hammer head and hammer head mounting structure

Abstract

The utility model relates to the technical field of mining machinery, and discloses a hammer head and a hammer head mounting structure, wherein the hammer head comprises a main body, the main body has an inner end face, an outer end face, a left end face and a right end face, the outer end face is a first working face, the right end face is provided with a mounting groove, the left end face comprises a first crimping face and a second working face inclined to the left at a certain angle relative to the first crimping face, the first crimping face is arranged close to the inner end face, the second working face is arranged close to the outer end face, and the left side of the inner end face is the second crimping face. The hammer head mounting structure comprises a blade-type rotor body and a hammer head of any of the foregoing items, the hammer head is clamped on the edge of the rotor upper plate or the rotor lower plate through the mounting groove, the rotor upper plate and the rotor lower plate are also screwed with a hammer head limiting plate, the hammer head limiting plate is provided with a second crimping notch, and the two inner walls of the second crimping notch are respectively fitted with the first crimping face and the second crimping face. The hammer head and the hammer head mounting structure in the utility model have the advantages of convenient disassembly and assembly and high connection strength when used.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a hammer head and a hammer head mounting structure. Background Art

[0002] With the depletion of natural sand and gravel resources, the increasing requirements for ecological protection and the continuous increase in the demand for construction projects, machine-made sand and gravel are gradually replacing natural sand and gravel to meet the market demand. Vertical sand making machine is widely used in the medium and fine crushing of various high-hard and extra-hard materials such as various ores, cement, refractory materials, bauxite clinker, corundum, glass raw materials, etc. It is mainly composed of feed cylinder, impact cylinder, rotor, guard plate, discharge cylinder, vertical shaft and other components. The outer edge of the blade rotor is equipped with a hammer head to crush the material that is hit by the impact liner.

[0003] The existing installation method of the hammer head and the rotor generally adopts the method of matching bolts and pin shafts or matching pin shafts and limit plates, which makes the disassembly and assembly of the hammer head inconvenient and the connection strength is not high. Utility Model Content

[0004] The utility model aims to provide a hammer head and a hammer head mounting structure, wherein the hammer head can be fixed by means of a mounting groove and a mounting protrusion and then cooperated with a limiting plate, and the hammer head does not need to be directly connected to a fastener, thereby solving the problems of inconvenient assembly and disassembly of the hammer head and low connection strength.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A hammer head includes a main body, the main body has an inner end face, an outer end face, a left end face and a right end face, the outer end face is a first working face, the right end face is provided with a mounting groove, the left end face includes a first crimping face and a second working face inclined to the left at a certain angle relative to the first crimping face, the first crimping face is arranged close to the inner end face, the second working face is arranged close to the outer end face, and the left side of the inner end face is the second crimping face.

[0007] In one embodiment, the angle between the outer inner wall and the bottom wall of the mounting groove is an obtuse angle, and the angle between the inner inner wall and the bottom wall of the mounting groove is a right angle.

[0008] In one embodiment, a right side edge of the inner end surface is provided with a slot communicating with the mounting groove.

[0009] In one embodiment, the main body further has an upper end surface and a lower end surface, and the left sides of the upper end surface and the lower end surface are both provided with convex strips.

[0010] In one embodiment, the height of the convex strip in the vertical direction gradually decreases from the outer end surface to the inner end surface.

[0011] In one embodiment, a first crimping notch is provided on the right end surface on a side close to the outer end surface and passes through the main body from top to bottom.

[0012] The utility model also provides a hammer head mounting structure, comprising a blade-type rotor body and a hammer head as described in any of the foregoing items, the rotor body comprising a rotor upper plate and a rotor lower plate, the outer edges of the rotor upper plate and the rotor lower plate are provided with mounting protrusions matching the mounting grooves of the hammer head, the hammer head is clamped on the edge of the rotor upper plate or the rotor lower plate through the mounting groove, the rotor upper plate and the rotor lower plate are also screwed with a hammer head limiting plate, the hammer head limiting plate is provided with a second crimping notch, and the two inner walls of the second crimping notch are respectively fitted with the first crimping surface and the second crimping surface.

[0013] In one embodiment, an outer guard plate is screwed to the upper end of the rotor upper plate and the lower end of the rotor lower plate, and a limiting protrusion matching the first crimping notch is provided on the outer guard plate.

[0014] The hammer head in this embodiment is provided with a mounting groove on the right end face, which can cooperate with the mounting protrusion on the rotor for limiting position, and then a first crimping surface is provided on the left end face of the hammer head and a second crimping surface is provided on the inner end face, which can cooperate with the limiting plate on the rotor for limiting position. In this way, the hammer head can be firmly fixed on the rotor by relying on the limiting structure provided on the hammer head, and the hammer head does not need to be directly connected to the fastener. Moreover, the size of the limiting structure provided on the hammer head is larger than that of the fastener, so it has a large bearing capacity and a better connection strength. Therefore, the hammer head in this embodiment has the advantages of easy disassembly and assembly and high connection strength when used.

[0015] In the hammer head mounting structure of the present embodiment, the mounting groove of the hammer head is matched with the mounting protrusion on the rotor upper plate or the rotor lower plate to limit the position, and then the two inner walls of the second crimping notch are respectively fitted with the first crimping surface and the second crimping surface. In this way, the hammer head can be firmly fixed on the rotor by relying on the limiting structure arranged on the hammer head and the rotor body. The hammer head does not need to be directly connected to the fastener, and the size of the limiting structure arranged on the hammer head and the rotor is larger than that of the fastener, with greater bearing force and better connection strength. Therefore, the hammer head mounting structure of the present embodiment has the advantages of easy disassembly and assembly and high connection strength when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the three-dimensional structure of a hammer head provided in a specific embodiment of the utility model;

[0018] Figure 2 A schematic diagram of the main structure of a hammer head provided in a specific embodiment of the utility model;

[0019] Figure 3 A left-side structural schematic diagram of a hammer head provided in a specific embodiment of the utility model;

[0020] Figure 4 A schematic diagram of a top view of a hammer head provided in a specific embodiment of the utility model;

[0021] Figure 5 A schematic cross-sectional view of a hammer head provided in a specific embodiment of the utility model;

[0022] Figure 6 A schematic diagram of the three-dimensional structure of a hammer head installation structure provided in a specific implementation mode of the utility model;

[0023] Figure 7 A schematic diagram of the split structure of the rotor upper plate and the hammer head in the hammer head installation structure provided in a specific implementation manner of the utility model;

[0024] Figure 8 The present invention is a schematic top view of a hammer head mounting structure provided in a specific implementation manner of the present invention.

[0025] The following are marked in the accompanying drawings:

[0026] 100, hammer head; 1, inner end face; 11, slot; 12, second crimping face; 2, outer end face; 3, left end face; 31, first crimping face; 32, second working face; 4, right end face; 41, mounting groove; 42, first crimping notch; 5, upper end face; 7, convex strip; 200, rotor body; 201, rotor upper plate; 202, rotor lower plate; 203, mounting protrusion; 300, hammer head limit plate; 301, second crimping notch; 400, outer protective plate; 401, limit protrusion. DETAILED DESCRIPTION

[0027] 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.

[0028] Please refer to Figures 1 to 8 , Figure 1 A schematic diagram of the three-dimensional structure of a hammer head provided in a specific embodiment of the utility model; Figure 2 A schematic diagram of the main structure of a hammer head provided in a specific embodiment of the utility model; Figure 3 A left-side structural schematic diagram of a hammer head provided in a specific embodiment of the utility model; Figure 4 A schematic diagram of a top view of a hammer head provided in a specific embodiment of the utility model; Figure 5 A schematic cross-sectional view of a hammer head provided in a specific embodiment of the utility model; Figure 6 A schematic diagram of the three-dimensional structure of a hammer head installation structure provided in a specific implementation mode of the utility model; Figure 7 A schematic diagram of the split structure of the rotor upper plate and the hammer head in the hammer head installation structure provided in a specific implementation manner of the utility model; Figure 8 The present invention is a schematic top view of a hammer head mounting structure provided in a specific implementation manner of the present invention.

[0029] In a specific implementation, a hammer head 100 provided in this embodiment includes a main body, the main body has an inner end face 1, an outer end face 2, a left end face 3 and a right end face 4, the outer end face is a first working face 2, the right end face 4 is provided with a mounting groove 41, the left end face 3 includes a first crimping face 31 and a second working face tilted to the left at a certain angle relative to the first crimping face, and the angle of the second working face tilted to the left relative to the first crimping face is a small acute angle. The first crimping face is arranged close to the inner end face, the second working face is arranged close to the outer end face, and the left side of the inner end face 1 is the second crimping face.

[0030] The hammer head 100 in this embodiment is provided with a mounting groove 41 on the right end face 4, which can cooperate with the mounting protrusion on the rotor for limiting position. Then, a first crimping surface is provided on the left end face of the hammer head 100, and a second crimping surface is provided on the inner end face, which can cooperate with the limiting plate on the rotor for limiting position. In this way, the hammer head 100 can be firmly fixed on the rotor by relying on the limiting structure provided on the hammer head 100, and the hammer head 100 does not need to be directly connected to the fastener. Moreover, the size of the limiting structure provided on the hammer head 100 is larger than that of the fastener, so it has a large bearing capacity and a better connection strength. Therefore, the hammer head 100 using this embodiment has the advantages of easy disassembly and assembly and high connection strength.

[0031] On the basis of the above-mentioned embodiment, the angle between the outer inner wall of the mounting groove 41 and the bottom wall is an obtuse angle, and the angle between the inner inner wall of the mounting groove 41 and the bottom wall is a right angle. That is to say, the overall shape of the mounting groove 41 is set to be a trapezoid, and the structure of the mounting protrusion on the rotor that matches the mounting groove 41 is also a trapezoid. This arrangement allows the outer side of the mounting protrusion on the rotor to gradually shrink inwards instead of suddenly changing, which can reduce stress concentration. In addition, compared with the rectangular mounting protrusion, the trapezoidal mounting protrusion has a larger structure, better structural strength, and better force transmission between the hammer head 100 and the rotor.

[0032] On the basis of the above embodiment, the right side of the inner end surface 1 is provided with a slot 11 communicating with the mounting groove 41. This arrangement allows the hammer head 100 to be inserted deeper into the rotor upper plate or the rotor lower plate, but does not require the mounting protrusion on the rotor to be set too high, so that the hammer head 100 in this embodiment can be more firmly connected to the rotor, and at the same time, it can ensure that the structural strength of the rotor using the hammer head 100 in this embodiment is not reduced.

[0033] In some embodiments, the main body further has an upper end face 5 and a lower end face (not shown in the figure), and the left sides of the upper end face 5 and the lower end face are provided with convex strips 7. The provision of the convex strips 7 can increase the area of ​​the first working surface and the second working surface on the hammer head 100, but there is no need to increase the overall structure of the hammer head, and the crushing efficiency of the hammer head 100 can be improved without increasing too much cost.

[0034] On the basis of the above-mentioned embodiment, the height of the convex strip 7 in the vertical direction gradually decreases from the outer end surface to the inner end surface. Since there are more materials at the outer end of the hammer head 100, and the materials that hit the hammer head 100 decrease as they go to the inner side of the hammer head 100, the height of the convex strip 7 is gradually reduced from the outer end surface to the inner end surface, which can further improve the crushing efficiency of the hammer head 100 without increasing too much cost, and also provide a certain wear space for the outer end of the hammer head 100, which can increase the service life of the hammer head 100.

[0035] In some embodiments, a first crimping notch 42 is provided on the right end surface 4 on one side close to the outer end surface, which passes through the main body from top to bottom. The first crimping notch 42 is provided to facilitate matching with the limiting structure on the outer side of the rotor, so as to further limit the hammer head 100 from the outer part of the right end surface of the hammer head 100, thereby further improving the connection strength of the hammer head 100.

[0036] An embodiment of the utility model also provides a hammer head mounting structure, including a blade-type rotor body 200 and the hammer head 100 described above, the rotor body 200 includes a rotor upper plate 201 and a rotor lower plate 202, the outer edges of the rotor upper plate 201 and the rotor lower plate 202 are provided with mounting protrusions 203 matching the mounting grooves 41 of the hammer head 100, the hammer head 100 is clamped on the edge of the rotor upper plate 201 or the rotor lower plate 202 through the mounting groove 41, and a hammer head limiting plate 300 is also screwed on the rotor upper plate 201 and the rotor lower plate 202, and a second crimping notch 301 is provided on the hammer head limiting plate 300, and the two inner walls of the second crimping notch 301 are respectively in contact with the first crimping surface and the second crimping surface.

[0037] In the hammer head mounting structure of the present embodiment, the mounting groove 41 of the hammer head 100 is matched with the mounting protrusion 203 on the rotor upper plate 201 or the rotor lower plate 202 for limiting, and then the two inner walls of the second crimping notch 301 are respectively fitted with the first crimping surface and the second crimping surface, so that the hammer head 100 can be firmly fixed on the rotor by relying on the limiting structure arranged on the hammer head 100 and the rotor body 200, and the hammer head 100 does not need to be directly connected to the fastener, and the size of the limiting structure arranged on the hammer head 100 and the rotor is larger than that of the fastener, with greater bearing force and better connection strength. Therefore, the hammer head mounting structure of the present embodiment has the advantages of easy disassembly and assembly and high connection strength when used.

[0038] In some embodiments, the upper end of the rotor upper plate 201 and the lower end of the rotor lower plate 202 are both screwed with an outer guard plate 400, and a limiting protrusion 401 matching the first crimping notch is provided on the outer guard plate 400. The limiting protrusion 401 is provided on the outer guard plate 400 of the rotor, and there is no need to separately provide a limiting structure to limit the hammer 100, so that the hammer installation structure of this embodiment improves the connection strength without increasing too much cost.

[0039] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0040] The utility model is described in detail above. The principle and implementation method of the utility model are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model. Therefore, the utility model will not be limited to the embodiments described herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. A hammer head (100), characterized in that: The invention comprises a main body, wherein the main body has an inner end face (1), an outer end face (2), a left end face (3) and a right end face (4), wherein the outer end face (2) is a first working face, the right end face (4) is provided with a mounting groove (41), the left end face (3) comprises a first crimping face (31) and a second working face (32) inclined to the left at a certain angle relative to the first crimping face (31), the first crimping face (31) is arranged close to the inner end face (1), the second working face (32) is arranged close to the outer end face (2), and the left side of the inner end face (1) is a second crimping face (12).

2. The hammer head according to claim 1, characterized in that: The included angle between the outer inner wall of the installation groove (41) and the bottom wall is an obtuse angle, and the included angle between the inner inner wall of the installation groove (41) and the bottom wall is a right angle.

3. The hammer head according to claim 1, characterized in that: A slot (11) communicating with the mounting groove (41) is provided on the right side edge of the inner end surface (1).

4. The hammer head according to claim 1, characterized in that: The main body also has an upper end surface (5) and a lower end surface, and the left side edges of the upper end surface (5) and the lower end surface are both provided with convex strips (7).

5. The hammer head according to claim 4, characterized in that: The height of the convex strip (7) in the vertical direction gradually decreases from the outer end surface to the inner end surface.

6. The hammer head according to any one of claims 1 to 5, characterized in that: The right end surface (4) is provided with a first crimping notch (42) on a side close to the outer end surface (2) and penetrating the main body from top to bottom.

7. A hammer head mounting structure, characterized in that: The invention comprises a blade-type rotor body (200) and a hammer head (100) as claimed in any one of claims 1 to 6, wherein the rotor body (200) comprises a rotor upper plate (201) and a rotor lower plate (202), the outer edges of the rotor upper plate (201) and the rotor lower plate (202) are both provided with mounting protrusions (203) matching with the mounting grooves (41) of the hammer head, the hammer head (100) is clamped on the edge of the rotor upper plate (201) or the rotor lower plate (202) through the mounting grooves (41), the rotor upper plate (201) and the rotor lower plate (202) are also screwed with a hammer head limiting plate (300), the hammer head limiting plate (300) is provided with a second crimping notch (301), and the two inner walls of the second crimping notch (301) are respectively fitted with the first crimping surface (31) and the second crimping surface (12).

8. The hammer head mounting structure according to claim 7, characterized in that: The upper end of the rotor upper plate (201) and the lower end of the rotor lower plate (202) are both screwed with an outer protective plate (400), and the outer protective plate (400) is provided with a limiting protrusion (401) matching the first crimping notch (42).

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