CN210522657U - Hammer - Google Patents

Abstract

The utility model belongs to the technical field of rock processing machinery, concretely relates to hammer. It has solved the too high problem of current drive hammer manufacturing cost. This hammer, including bar hammer handle and tup, the mounting hole has been seted up at the top of bar hammer handle, and bar hammer handle bottom links to each other with the tup top, and its characterized in that has two relative hammering faces on the tup, hammering face is parallel with the mounting hole axis, two interval between the hammering face is greater than the interval between the bar hammer handle outer wall of mounting hole both sides, one or two be equipped with the stereoplasm hammer plate on the hammering face. The utility model discloses a make the hammer still have required hardness and intensity when reducing material cost.

Description

Hammer

Technical Field

The utility model belongs to the technical field of rock processing machinery, concretely relates to hammer.

Background

The hammer crusher is one of common devices in a crushing production line and a sand making production line, and is widely used for crushing other medium-hard ores such as iron ores, sandstones, gypsum, blast furnace slag, coal gangues, lump coal and the like. The hammer is one of the core parts of the hammer crusher and is arranged on a pin shaft of a rotor of the crusher, the hammer directly strikes materials when the crusher runs at high speed and finally crushes the materials into proper material granularity, and the stronger the impact capacity of the hammer, the better the effect of crushing the materials. In the prior art, in order to improve the hardness of the hammer, the whole hammer is made of high-hardness materials, so that the material of a handle part of the bar-shaped hammer is too hard, the abrasion on a pin shaft is too large, and the pin shaft needs to be frequently replaced; and the bar-shaped hammer handle of the hammer is made of common materials, and the hammer head part is wrapped by hard materials, so that the hardness of the hammering part of the hammer is improved. Both of the above hammers consume a large amount of hard materials, and the high price of the hard materials leads to an increase in the cost of the hammer.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a hammer, the utility model aims to solve the technical problem that: how to achieve the reduction of the material cost of the hammer while having good hardness.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a hammer, includes bar hammer handle and tup, and the mounting hole has been seted up at the top of bar hammer handle, and bar hammer handle bottom links to each other with the tup top, and its characterized in that has two relative hammering faces on the tup, the hammering face is parallel with the mounting hole axis, two interval between the hammering face is greater than the interval between the bar hammer handle outer wall of mounting hole both sides, one or two be equipped with the stereoplasm hammer block on the hammering face.

The bar-shaped hammer handle is connected with a rotating shaft on the hammer crusher through a mounting hole, the hammer rotates along the rotating direction of the rotating shaft, and a hammering surface for hammering stones is formed on the hammer. If the rotating shaft rotates towards one direction, a hammering surface is formed; if the rotating shaft has two rotating directions, the hammer is rotated towards two directions to strike the stone, and two hammer surfaces are formed. The interval between two hammering faces is greater than the interval between the bar hammer handle outer wall of mounting hole both sides, and at the hammer during operation, the bar hammer handle can be avoided to the hammer to make the hammer at the during operation, centrifugal force is stronger, promotes the volume of striking to the stone. The hard hammer plate is embedded on the hammering face, the local hardness of the hammer is improved, the hammering face of the hammer in operation has good hardness and strength, the service life of the hammer is prolonged, and the hard hammering plate is only poured on the hammering face of the hammer, so that the hammer has good hammering hardness and strength, and meanwhile, the manufacturing cost is also saved.

In the hammer, the hammering surface is provided with a strip-shaped caulking groove, and the hard hammer plate is strip-shaped and is positioned in the caulking groove. The hard hammer plate is embedded in the caulking groove in a strip shape, so that the material cost of the hammer is further reduced, and certain hammering hardness and strength are achieved.

In foretell hammering, all seted up two caulking grooves on every hammering face, the caulking groove runs through the bottom surface of tup, and two caulking groove intervals set up, and the bottom surface of stereoplasm hammer block is parallel and level mutually with the bottom surface of tup. Two caulking grooves all run through the tup bottom surface to at the caulking groove embedded into the stereoplasm hammer block, and the bottom surface of stereoplasm hammer block and the bottom surface looks parallel and level of tup, make the stereoplasm hammer block also can carry out hammering work in the bottom surface of tup, increased the working area of hammering, promote the local hardness and the intensity of tup bottom surface.

In the hammer, the hammering face is provided with an embedded groove, the embedded groove penetrates through two side faces, perpendicular to the axis of the mounting hole, of the hammer head, and the hard hammer plate is in a plate shape and is located in the embedded groove. Because the caulking groove runs through the side between two hammering faces, the area that the stereoplasm hammer block exposes outside increases, has promoted the working face of hammer.

In the above hammer, the bottom surface of the hammer head is provided with a yielding groove communicated with the caulking groove, an integrally formed hard hammer plate is cast in the caulking groove, and the hard hammer plate is provided with a bending part embedded in the yielding groove. The bottom surface of the hammer head is provided with the abdicating groove communicated with the caulking groove, the hard hammer plate is provided with the bending part embedded in the abdicating groove, the section of the hard hammer plate is L-shaped or J-shaped, and the joint between the hammering surface and the bottom surface is wrapped by the hard hammer plate, so that the service life of the hammer is prolonged; and a working surface capable of striking a stone is formed on the bottom surface.

In the hammer, the first boss is arranged on the surface of the caulking groove on the hammering face, and the first hole matched with the first boss is formed in the hard hammer plate. The first boss and the first hole on the hammer head are matched, so that the contact area between the hard hammer plate and the hammer head is increased, the connection reliability between the hard hammer plate and the hammer head is improved, and the service life of the hard hammer plate is prolonged.

In the hammer, the surface of the caulking groove on the hammering face is provided with a second boss, and the hard hammer plate is provided with a second hole matched with the second boss. The surface of caulking groove sets up the area of contact between increase tup that two bosss can be further and the stereoplasm hammer block, has promoted the connection reliability and the life between stereoplasm hammer block and the tup.

In the hammer, a transition slope is formed between the bottom surface and the side surface of the hard hammer plate. Avoid because the contained angle between the bottom surface of stereoplasm hammer plate and the side is the right angle or acute angle leads to stress concentration, easy breakage when the hammer work, the contained angle that sets up through the transition inclined plane and make between bottom surface and the transition inclined plane is the obtuse angle, and the contained angle between side and the transition inclined plane also is the obtuse angle, reduces because stress concentration leads to easy broken problem, has increased the working area of stereoplasm hammer plate simultaneously.

In the hammer, the side surface of the hard hammer plate is flush with the hammering surface, and the bottom surface of the hard hammer plate is flush with the bottom surface of the hammer head. The consistency between the hard hammer plate and the hammer is better.

In the hammer described above, the hard hammer plate is formed of a hard material by press sintering. Since the hardness, melting point and strength of the hard hammer plate made of cemented carbide are very high, it is necessary to form the cemented carbide powder by die pressing and sintering, and then place the cemented carbide powder as an insert in a casting cavity.

Compared with the prior art, the hammer has the following advantages:

the use amount of hard materials on the hammer is reduced, the material cost is reduced, and meanwhile, the hammer has required hardness and strength.

Drawings

FIG. 1 is a general assembly diagram of the first embodiment.

Fig. 2 is an exploded view of the first embodiment.

FIG. 3 is a general assembly diagram of the second embodiment.

Fig. 4 is an exploded view of the second embodiment.

FIG. 5 is a general assembly diagram of the third embodiment.

Fig. 6 is an exploded view of the third embodiment.

In the figure, 1, a bar-shaped hammer handle; 2. a hammer head; 3. mounting holes; 4. hammering the surface; 5. a hard hammer plate; 6. caulking grooves; 7. a bottom surface; 8. a yielding groove; 9. a first boss; 10. a second boss; 11. a first hole; 12. a second hole; 13. a transition bevel.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

The first embodiment is as follows:

as shown in fig. 1 and fig. 2, this hammer includes bar hammer handle 1 and tup 2, mounting hole 3 has been seted up at bar hammer handle 1's top, bar hammer handle 1 bottom links to each other with 2 tops of tup, tup 2 is the rectangle form, two relative hammering faces 4 have on the tup 2, hammering face 4 is parallel with 3 axes of mounting hole, interval between two hammering faces 4 is greater than the interval between the 1 outer wall of 3 both sides bar hammer handle of mounting hole, at the hammer during operation, bar hammer handle 1 can be avoided to the hammer, and make the hammer at the during operation, centrifugal force is stronger, promote the amount of striking to the stone. The hard hammer plate 5 is made of hard alloy, the hard hammer plate 5 is formed by die pressing sintering, the die pressing sintering is to put hard alloy powder into a pressing die, then the pressing forming demoulding is carried out under a pressing machine, and then high-temperature sintering is carried out, wherein the temperature of the high-temperature sintering is 1300-1600 ℃. And placing the processed strip-shaped hard hammer plate 5 in a casting cavity, pouring the molten metal material into the casting cavity, and cooling and hardening the molten metal material to form the hammer handle and the hammer head 2. Because the hard hammer plate 5 is strip-shaped, the caulking groove 6 on the hammer head 2 is also strip-shaped. And the hard hammer plate 5 is integrated with the hammer head 2 because it is a hammer formed by casting.

As shown in fig. 1 and 2, two caulking grooves 6 are formed in a hammering surface 4 of the hammer head 2, the caulking grooves 6 penetrate through a bottom surface 7 of the hammer head 2, the two caulking grooves 6 are arranged at intervals, and a strip-shaped hard hammer plate 5 is embedded in each caulking groove 6. Set up stereoplasm hammer plate 5 according to actual hammering demand on one or two hammering faces 4, the outside side and 4 parallel and level of hammering face of stereoplasm hammer plate 5, the bottom surface 7 of stereoplasm hammer plate 5 and the bottom surface 7 parallel and level of tup 2.

Example two:

this embodiment is substantially the same as the first embodiment, and the difference is that:

as shown in fig. 3 and 4, the hard hammer plate 5 is processed into an L-shaped or J-shaped cross section, a first hole 11 and a second hole 12 are formed in the hard hammer plate 5, the hard hammer plate is placed into a casting cavity, then a metal material for forming the hammer head 2 and the hammer handle is cast into the casting cavity, and the metal material is integrally formed with the hard hammer plate 5 after being cooled. And the casted hammer head 2 is provided with an embedded groove 6 for accommodating the hard hammer plate 5, the embedded groove 6 penetrates through the side surface between the hammering surfaces 4, and the bottom of the hammer head 2 is provided with a yielding groove 8 communicated with the embedded groove 6. As the first hole 11 and the second hole 12 are formed in the hard hammer plate 5, the first boss 9 and the second boss 10 are formed on the hammer head 2 in the casting process. The first hole 11 and the second hole 12 can be through holes or blind holes, and the contact area between the hard hammer plate 5 and the hammer head 2 can be maximized by adopting the blind holes. The first hole 11 and the second hole 12 can be circular holes or geometric holes.

In order to avoid stress concentration caused by the fact that the included angle between the bottom surface 7 and the side surface of the hard hammer plate 5 is a right angle or an acute angle, the hammer is easy to break during working, the included angle between the bottom surface 7 and the transition inclined surface 13 is an obtuse angle through the arrangement of the transition inclined surface 13, the included angle between the side surface and the transition inclined surface 13 is also an obtuse angle, the problem that the hammer is easy to break caused by stress concentration is reduced, and meanwhile the working area of the hard hammer plate 5 is increased.

Example three:

the hard hammer plate 5 in the embodiment is formed into a convex strip shape through mould pressing and sintering, a groove is formed in the hammer head 2 in the casting process, the convex strip can be rectangular or trapezoidal, the contact area between the hard hammer plate 5 and the hammer head 2 is increased, the possibility of falling off of the hard hammer plate 5 is reduced, and the reliability of the hammer is improved.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (10)

1. The utility model provides a hammer, includes bar hammer handle (1) and tup (2), and mounting hole (3) have been seted up at the top of bar hammer handle (1), and bar hammer handle (1) bottom links to each other with tup (2) top, and its characterized in that has two relative hammering faces (4) on tup (2), hammering face (4) are parallel with mounting hole (3) axis, two interval between hammering face (4) is greater than the interval between mounting hole (3) both sides bar hammer handle (1) outer wall, one or two be equipped with stereoplasm hammer block (5) on hammering face (4).

2. Hammer according to claim 1, characterized in that the hammering face (4) is provided with a bar-shaped groove (6), and the hard hammer plate (5) is bar-shaped and located in the groove (6).

3. A hammer according to claim 2, wherein each hammering face (4) is provided with two caulking grooves (6), the caulking grooves (6) penetrate through the bottom surface (7) of the hammer head (2), the two caulking grooves (6) are arranged at intervals, and the bottom surface of the hard hammer plate (5) is flush with the bottom surface of the hammer head (2).

4. The hammer according to claim 1, wherein the hammering surface (4) is provided with a caulking groove (6), the caulking groove (6) penetrates through two side surfaces of the hammer head (2) perpendicular to the axis of the mounting hole (3), and the hard hammer plate (5) is in a plate shape and is positioned in the caulking groove (6).

5. The hammer according to claim 4, wherein the bottom surface (7) of the hammer head (2) is provided with a yielding groove (8) communicated with the caulking groove (6), and the hard hammer plate (5) is provided with a bending part embedded into the yielding groove (8).

6. A hammer according to claim 4 or 5, wherein the surface of the caulking groove (6) of the hammering face (4) is provided with a first boss (9), and the hard hammer plate (5) is provided with a first hole (11) matched with the first boss (9).

7. The hammer according to claim 6, wherein the surface of the caulking groove (6) on the hammering face (4) is provided with a second boss (10), and the hard hammer plate (5) is provided with a second hole (12) matched with the second boss (10).

8. Hammer according to claim 7, characterized in that the hard hammer plate (5) has a transition bevel (13) between its bottom and side faces.

9. A hammer according to claim 1 or 2 or 4 or 5, characterized in that the side of the hard hammer plate (5) is flush with the hammering face (4) and the bottom of the hard hammer plate (5) is flush with the bottom face (7) of the hammer head (2).

10. Hammer according to claim 1 or 2 or 4 or 5, characterized in that the hard hammer plate (5) is formed of hard material by press sintering.

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