Novel hammer head structure of down-the-hole hammer

Abstract

The utility model discloses a novel hammer head structure of a down-hole hammer, which comprises a hammer head arranged outside an impactor, a lower inclined surface arranged at one end of the hammer head positioned on the impactor, an end seat fixedly mounted at the bottom of the impactor, an upper inclined surface arranged at the bottom of the end seat, and an anti-clamping component arranged on one side of the bottom of the end seat, which is opposite to the hammer head. The hammer has the advantages that the broken stones are not prone to being clamped between the hammer head and the end base through the lower inclined face of the hammer head and the upper inclined face of the end base, the rotating ring base is driven by the driving motor to rotate, and therefore the broken stones are prevented from being clamped between the hammer head and the end base. And the rotating ring seat can discharge broken stones clamped between the lower inclined surface of the hammer head and the upper inclined surface of the end seat outwards through the spiral groove in the bottom, so that the situation that the broken stones are clamped can be effectively avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to pneumatic down -the -hole hammer technical field, concretely relates to a novel down -the -hole hammer head structure. BACKGROUND

[0002] When the impactor of the pneumatic down -the -hole hammer works, the gas entering the cylinder is divided into two ways: one way of gas directly passes from the air cylinder to the hammer bottom center exhaust hole, and enters the hole bottom to directly flush the broken rock and soil debris; the other way of gas drives the impactor to work, so that the piston reciprocates. The gap is provided between the impactor lower joint of the upper structure of the pneumatic down -the -hole hammer and the hammer body, which is convenient for reciprocating, so that the broken rock and soil debris is easily blocked during construction and use, which affects use. In order to prevent blocking, a shield structure is generally arranged outside the gap, for example, the Chinese patent CN212656758U discloses a pneumatic down -the -hole hammer, which is provided with a metal ring outside the gap to achieve the effect of preventing blocking.

[0003] The above prior art installs a metal ring as a shield at the impactor located at the hammer head. Although this method can block larger rocks from being stuck between the hammer head and the impactor, smaller stones can easily enter the rock between the hammer head and the impactor through the air passage hole and are not easily discharged outward under the shielding of the metal ring, so that the stones accumulate to a certain amount and still cause the situation of blocking. Therefore, an automatic cleaning or anti-blocking and cleaning structure is designed, and a new down -the -hole hammer head structure is further designed to solve the above problems. UTILITY MODEL CONTENTS

[0004] To solve the problems in the above background art, the technical solution adopted by the utility model to solve the technical problems is: a novel down -the -hole hammer head structure, comprising a hammer head provided outside an impactor, characterized in that a downward inclined surface is provided at one end of the impactor, an end seat is fixedly installed at the bottom of the impactor, an upward inclined surface is provided at the bottom of the end seat, and an anti-blocking assembly is provided on the side of the hammer head opposite to the bottom of the end seat.

[0005] As a preferred technical solution of the utility model, the anti-blocking assembly comprises a rotating ring seat, a spiral groove and a limiting ring, the spiral groove is arranged at the bottom of the rotating ring seat, and the limiting ring is arranged on the outer side of the upper end of the rotating ring seat.

[0006] As a preferred technical solution of the utility model, the rotating ring seat is rotatably connected to the inner bottom end of the end seat through the limiting ring, and an inner tooth ring is arranged at one end of the rotating ring seat in the end seat.

[0007] As an improved technical scheme of the utility model, the annular groove is arranged in the inside of the end seat on one side of the inner gear ring, the bearing is arranged on one side of the limiting ring in the inside of the end seat, and the bearing is sleeved on the outer side of the limiting ring.

[0008] As an improved technical scheme of the utility model, the motor mounting groove is arranged on one side between the impactor and the end seat, and the driving motor is fixedly installed in the inside of the motor mounting groove.

[0009] As an improved technical scheme of the utility model, the gear is connected to the output end of the driving motor, and the gear is engagedly connected to the inner side of the inner gear ring.

[0010] As an improved technical scheme of the utility model, the side surface of the hammer head is a hammer surface, and the cross section between the lower inclined surface and the upper inclined surface is an eight-shaped structure.

[0011] As an improved technical scheme of the utility model, the end of the rotating ring seat on the outside of the end seat is an inclined surface, and the inclined surface and the upper inclined surface are in the same plane.

[0012] As an improved technical scheme of the utility model, the hammer body extending downward is connected to the inside of the bottom end of the impactor, and the end seat and the rotating ring seat are made of the same material as the hammer head.

[0013] The utility model has the following advantages: the lower inclined surface of the hammer head and the upper inclined surface of the end seat can prevent the gravel from being stuck between the hammer head and the end seat.

[0014] The driving motor drives the rotating ring seat to rotate, the gravel stuck between the lower inclined surface of the hammer head and the upper inclined surface of the end seat can be discharged outward through the spiral groove at the bottom of the rotating ring seat, thereby effectively avoiding the gravel from being stuck. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the schematic diagram of the upper overall structure of the pneumatic down-the-hole hammer of the improved embodiment of the utility model;

[0016] Figure 2 It is the schematic diagram of the upper sectional structure of the pneumatic down-the-hole hammer of the improved embodiment of the utility model;

[0017] Figure 3 It is the schematic diagram of the anti-sticking assembly structure of the improved embodiment of the utility model;

[0018] Figure 4 It is the schematic diagram of the partial sectional structure of the anti-sticking assembly of the improved embodiment of the utility model;

[0019] Figure 5 It is the schematic diagram of the bottom view structure of the rotating ring seat of the improved embodiment of the utility model.

[0020] 1, impactor; 2, hammer body; 3, hammer head; 4, lower inclined surface; 5, end seat; 6, motor mounting groove; 7, driving motor; 8, bearing; 9, rotating ring seat; 10, helical groove; 11, limiting ring; 12, inner tooth ring; 13, gear; 14, hammer face; 15, upper inclined surface. DETAILED DESCRIPTION

[0021] The technical solutions of the utility model will be described clearly and completely below in combination with the drawings. In the description of the utility model, it should be explained that the directions or position relations of the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model in that the indicated devices or elements must have a specific direction, be constructed and operated in a specific direction. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying the importance of the opposite.

[0022] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] The utility model will be further described below in combination with the drawings.

[0024] Please see Figures 1-5 The utility model discloses a novel down-the-hole hammer hammer head structure, including the hammer head 3 of the impactor 10 outside setting, the side surface of hammer head 3 is hammer face 14, the hammer body 2 of impactor 1 outside extension, and with the sleeve joint of hammer head 3, hammer head 3 is located at the one end of impactor 1 and is provided with lower inclined surface 4, and hammer head 3 and impactor 1 are provided with a certain distance gap between them, the end seat 5 of impactor 1 bottom is fixedly installed, the upper inclined surface 15 of end seat 5 bottom is provided with anti-jamming assembly, and the anti-jamming assembly is used for removing the gravel between lower inclined surface 4 and upper inclined surface 15.

[0025] In combination with Figure 2 And Figure 4The anti-blocking assembly is shown in the figure, wherein the anti-blocking assembly comprises a rotating ring seat 9, a helical groove 10 and a limiting ring 11, the helical groove 10 is arranged at the bottom of the rotating ring seat 9, the limiting ring 11 is arranged at the outer side of the upper end of the rotating ring seat 9, the rotating ring seat 9 is rotatably connected to the inner bottom end of the end seat 5 through the limiting ring 11, and the rotating ring seat 9 is provided with an inner tooth ring 12 at one end in the inner part of the end seat 5, a ring groove is arranged in the inner part of the end seat 5 at one side of the inner tooth ring 12, and a bearing 8 is arranged in the inner part of the end seat 5 at one side of the limiting ring 11, the bearing 8 is sleeved on the outer side of the limiting ring 11, and the rotating ring seat 9 can be stably rotated in the inner part of the end seat 5 through the limiting ring 11.

[0026] The motor installation groove 6 is arranged at one side between the impactor 1 and the end seat 5, the driving motor 7 is fixedly installed in the inner part of the motor installation groove 6, the gear 13 is connected to the inner side of the inner tooth ring 12 in a meshed mode, the hammer face 14 is arranged at one side of the hammer head 3, the cross section between the lower inclined surface 4 and the upper inclined surface 15 is in a figure-eight structure, the rotating ring seat 9 is an inclined surface at one end outside the end seat 5, the inclined surface and the upper inclined surface 15 are in the same plane, the hammer body 2 is connected to the inner bottom end of the impactor 1, and the end seat 5 and the rotating ring seat 9 are made of the same material as the hammer head 3.

[0027] Specifically, the hammer head 3 cooperates with the hammer face 14 in the underwater hole, the lower inclined surface 4 of the hammer head 3 and the upper inclined surface 15 of the end seat 5 can prevent the broken stones from being easily stuck between the hammer head 3 and the end seat 5, when the hammer head 3 approaches the end seat 5, the broken stones between the hammer head 3 and the end seat 5 can be automatically extruded to the periphery, meanwhile, the driving motor 7 can be driven to rotate the gear 13, the gear 13 is driven to rotate the inner tooth ring 12 in a meshed mode, the inner tooth ring 12 drives the rotating ring seat 9 to rotate, and the rotating ring seat 9 can drive the broken stones stuck between the lower inclined surface 4 of the hammer head 3 and the upper inclined surface 15 of the end seat 5 to be discharged outward through the helical groove 10 at the bottom.

[0028] The driving motor 7 is fixedly installed in the inner part of the motor installation groove 6, the gear 13 is connected to the inner side of the inner tooth ring 12 in a meshed mode, the hammer face 14 is arranged at one side of the hammer head 3, the cross section between the lower inclined surface 4 and the upper inclined surface 15 is in a figure-eight structure, the rotating ring seat 9 is an inclined surface at one end outside the end seat 5, the inclined surface and the upper inclined surface 15 are in the same plane, the hammer body 2 is connected to the inner bottom end of the impactor 1, and the end seat 5 and the rotating ring seat 9 are made of the same material as the hammer head 3. Figure 1 The driving motor 7 is fixedly installed in the inner part of the motor installation groove 6, the gear 13 is connected to the inner side of the inner tooth ring 12 in a meshed mode, the hammer face 14 is arranged at one side of the hammer head 3, the cross section between the lower inclined surface 4 and the upper inclined surface 15 is in a figure-eight structure, the rotating ring seat 9 is an inclined surface at one end outside the end seat 5, the inclined surface and the upper inclined surface 15 are in the same plane, the hammer body 2 is connected to the inner bottom end of the impactor 1, and the end seat 5 and the rotating ring seat 9 are made of the same material as the hammer head 3. Figure 2 The driving motor 7 is fixedly installed in the inner part of the motor installation groove 6, the gear 13 is connected to the inner side of the inner tooth ring 12 in a meshed mode, the hammer face 14 is arranged at one side of the hammer head 3, the cross section between the lower inclined surface 4 and the upper inclined surface 15 is in a figure-eight structure, the rotating ring seat 9 is an inclined surface at one end outside the end seat 5, the inclined surface and the upper inclined surface 15 are in the same plane, the hammer body 2 is connected to the inner bottom end of the impactor 1, and the end seat 5 and the rotating ring seat 9 are made of the same material as the hammer head 3.

[0029] The above is only the preferred embodiment of the utility model, it should be pointed out that, for ordinary skilled person in the art, without departing from the principle of the utility model, can make a number of improvements and refinements, these improvements and refinements also should be regarded as the protection scope of the utility model.

[0030] Other parts not described in the utility model are all prior art, so here is not repeated.

[0031] Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A new type of hammer head structure of a down-the-hole hammer, comprising a hammer head (3) arranged outside an impactor (1), characterized in that, The hammer head (3) is located at one end of the impactor (1) and is provided with a downward inclined surface (4), the bottom of the impactor (1) is fixedly provided with an end seat (5), the bottom of the end seat (5) is provided with an upward inclined surface (15), the bottom of the end seat (5) is provided with an anti-jamming assembly opposite to one side of the hammer head (3), and the anti-jamming assembly is used for removing the gravel between the downward inclined surface (4) and the upward inclined surface (15).

2. A new type of hammer head structure of a roof hole hammer according to claim 1, characterized in that, The anti-jamming assembly comprises a rotating ring seat (9), a spiral groove (10) and a limiting ring (11), the spiral groove (10) is arranged at the bottom of the rotating ring seat (9), and the limiting ring (11) is arranged on the outer side of the upper end of the rotating ring seat (9).

3. A new type of hammer head structure of a roof hole hammer according to claim 2, characterized in that, The rotating ring seat (9) is rotatably connected to the bottom end of the end seat (5) through the limiting ring (11), and the rotating ring seat (9) is provided with an inner tooth ring (12) at one end in the end seat (5).

4. A new type of hammer head structure of a roof hole hammer according to claim 1, characterized in that, The end seat (5) is provided with an annular groove at one side in the inner tooth ring (12), and the end seat (5) is provided with a bearing (8) at one side in the limiting ring (11).

5. A new type of hammer head structure of a roof hole hammer according to claim 1, characterized in that, A motor mounting groove (6) is arranged between the impactor (1) and the end seat (5), and a driving motor (7) is fixedly arranged in the motor mounting groove (6).

6. A new type of hammer bit structure of a roof hole hammer according to claim 5, characterized in that, The output end of the driving motor (7) is connected with a gear (13), and the gear (13) is connected to the inner side of the inner tooth ring (12).

7. A new type of hammer head structure of a roof hole hammer according to claim 1, characterized in that, One side surface of the hammer head (3) is a hammer surface (14), and the cross section between the downward inclined surface (4) and the upward inclined surface (15) is in an eight-shaped structure.

8. A new type of hammer head structure of a roof hole hammer according to claim 2, characterized in that, The rotating ring seat (9) is provided with an inclined surface at one end outside the end seat (5), and the inclined surface is in the same plane as the upward inclined surface (15).

9. A new type of hammer head structure of a roof hole hammer according to claim 1, characterized in that, The downward extending hammer body (2) is connected to the bottom end inside the impactor (1), and the end seat (5) and the rotating ring seat (9) are made of the same material as the hammer head (3).

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