CN210738482U - Wear-resisting type of hard rock digs pick soon - Google Patents

Abstract

The utility model discloses a pick is dug soon to wear-resisting type of hard rock relates to and digs the pick field soon. Including alloy tool bit, tooth head, jump ring, tooth handle, the tooth head is the cone, inlays on the tooth head top alloy tool bit is equipped with the wearing and tearing scale on tooth head upper portion, and the lower part is equipped with a plurality of first archs, a plurality of second arch, a plurality of recess in the tooth head, first arch with the protruding interval evenly distributed of second, recess with the second arch relative and with first protruding interval evenly distributed are equipped with tooth handle mounting hole in tooth head bottom center, be equipped with the U-shaped groove in tooth head lower part, evenly be equipped with a plurality of screw holes in the U-shaped inslot, and threaded hole internal fixation has holding screw, and the screw hole radially stretches into the tooth handle mounting hole, is equipped with tooth handle and jump ring below the tooth head, and the joint of tooth handle upper end is in the tooth handle mounting hole, and the jump ring joint is at the jump ring inslot at tooth handle. The utility model discloses an assembled tooth head and tooth handle only need change the tooth head part of wearing and tearing, and the tooth handle need not be changed, saves manufacturing cost greatly.

Description

Wear-resisting type of hard rock digs pick soon

Technical Field

The utility model relates to a dig the pick soon, specifically indicate a pick is dug soon to wear-resisting type of hard rock.

Background

The rotary excavating machine is widely applied to the fields of mining, quarrying, hydroelectric engineering, road building, smelting and the like, is a comprehensive drilling machine, and has the characteristics of high hole forming speed, less pollution, strong maneuverability and the like. Among the prior art, dig the pick soon and make through forging, the pick head is a whole with the toothholder, and the pick head is worn and torn easily in the work, and the toothholder is installed outside cover again on the toothholder, does not basically have wearing and tearing, and when the toothholder wearing and tearing seriously changed, the whole pick of digging soon needs to be changed together, causes the waste of toothholder part material like this, increases enterprise manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an assembled tooth head and tooth handle of convenient dismantlement are provided, only need to change the serious tooth head part of wearing and tearing, save manufacturing cost.

In order to solve the technical problem, the utility model discloses the technical scheme who takes is: a hard rock wear-resistant rotary excavating pick is characterized by comprising an alloy cutter head, a pick head, a clamp spring and a pick handle, wherein the pick head is a cone, the alloy cutter head is embedded at the top end of the pick head, a wear scale is arranged on the upper portion of the pick head, a plurality of first bulges, a plurality of second bulges and a plurality of grooves are arranged on the middle lower portion of the pick head, the first bulges and the second bulges are uniformly distributed at intervals, the grooves are opposite to the second bulges and are uniformly distributed at intervals with the first bulges, a pick handle mounting hole is arranged at the center of the bottom of the pick head, a U-shaped groove is arranged on the lower portion of the pick head, a plurality of threaded holes are uniformly arranged in the U-shaped groove, set screws are fixedly arranged in the threaded holes, the threaded holes radially extend into the pick handle mounting hole, the pick handle and the clamp spring are arranged below the pick head, the upper end of the pick handle is clamped in the pick handle mounting, the clamp spring is clamped in a clamp spring groove in the middle of the gear handle.

Preferably, the wear scale is a groove that circles around the tooth head, the number of grooves being at least 2.

Preferably, the first lobe radial dimension is greater than the second lobe radial dimension.

Further preferably, the first protrusion and the second protrusion are both circular arcs in a direction perpendicular to the tooth head axis.

Preferably, the gear shank mounting hole is conical, and the conicity is 1: 10.

Further preferably, the tooth shank mounting hole and the tooth shank are in transition fit.

Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: the utility model discloses be equipped with the pick and the tooth handle of assembled, only need change the pick can, the tooth handle can continue to use, has saved the manufacturing cost of enterprise greatly, and the pick is equipped with first arch and second arch, recess, has increased the autogyration nature of digging the pick soon, reduces and digs the emergence of pick eccentric wear soon, increases the homogeneity of pick wearing and tearing, the utility model discloses still be equipped with the wearing and tearing scale, can judge the wearing and tearing condition of observing the pick.

Drawings

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a top view of the present invention;

in the figure: 1. the alloy tool bit 2, the tooth head 201, the wear scale 202, the tooth handle mounting hole 203, the threaded hole 204, the U-shaped groove 205, the first protrusion 206, the groove 207, the second protrusion 3, the clamp spring 4 and the tooth handle.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, a wear-resistant hard rock rotary excavating pick comprises an alloy tool bit 1, a tooth head 2, a clamp spring 3 and a tooth handle 4, wherein the tooth head 2 is a cone, the alloy tool bit 1 is embedded at the top end of the tooth head 2, a wear scale 201 is arranged on the upper portion of the tooth head 2, the wear scale 201 is a groove surrounding 2 circles of the tooth head, the number of the grooves is 2, and the wear degree of the tooth head can be judged and observed by observing the depth of the two grooves. The middle lower part of the pick head 2 is respectively provided with 7 first bulges 205, 7 second bulges 207 and 7 grooves 206, the first bulges 205 and the second bulges 207 are uniformly distributed at intervals, the radial dimension of the first bulges 205 is larger than that of the second bulges 207, the grooves 206 are opposite to the second bulges 207 and uniformly distributed at intervals with the first bulges 205, when the pick head 2 encounters hard objects such as rocks and coal blocks in the working process, the first bulges 205 which are radially arc-shaped are stressed to drive the rotary excavating pick to rotate, if the encountered hard objects such as rocks and coal blocks are clamped between the two first bulges 205, the second bulges 207 are encountered, the second bulges 207 are also radially arc-shaped, the rotary excavating pick can be driven to rotate, and the bulges are mutually matched to increase the rotation performance of the rotary excavating pick. The tooth head 2 is provided with a tooth handle mounting hole 202 in the center of the bottom, the tooth handle mounting hole 202 is conical, the taper is 1:10, the tooth head is installed in a transition fit mode with a tooth handle 4, a U-shaped groove 204 is formed in the lower portion of the tooth head, four threaded holes 203 are uniformly formed in the U-shaped groove 204, a section of through hole with the length is formed outside each threaded hole 203, the size of the through hole is matched with that of a tooth puller, a set screw is fixed in each threaded hole 203, the threaded holes 203 radially extend into the tooth handle mounting hole 202, a tooth handle 4 and a clamp spring 3 are arranged below the tooth head 2, the upper end of the tooth handle 4 is clamped in the tooth handle mounting hole 202, and the clamp spring 3 is clamped in a.

The utility model discloses in use, through observing wearing and tearing scale 201, judge whether should change dentate 2, when changing dentate 2, at first unscrew the holding screw in the screw hole 203, then utilize holding screw's screw hole to extract the dentate with the tooth puller, after the dentate 2 that updates, tighten the holding screw in the screw hole 203 again, with dentate 2 with tooth handle 4 fixed can. The utility model discloses it is very convenient to dismantle to still save material greatly, reduced the manufacturing cost of enterprise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (6)

1. The hard rock wear-resistant rotary cutting pick is characterized by comprising an alloy cutter head (1), a cutter head (2), a clamp spring (3) and a tooth holder (4), wherein the cutter head (2) is a cone, the alloy cutter head (1) is embedded at the top end of the cutter head (2), a wear scale (201) is arranged on the upper portion of the cutter head (2), a plurality of first bulges (205), a plurality of second bulges (207) and a plurality of grooves (206) are arranged on the middle lower portion of the cutter head (2), the first bulges (205) and the second bulges (207) are uniformly distributed at intervals, the grooves (206) are opposite to the second bulges (207) and are uniformly distributed at intervals with the first bulges (205), a cutter holder mounting hole (202) is arranged at the center of the bottom of the cutter head (2), a U-shaped groove (204) is arranged on the lower portion of the cutter head, a plurality of threaded holes (203) are uniformly arranged in the U-shaped groove (204), threaded hole (203) internal fixation has holding screw, threaded hole (203) radially stretches into tooth handle mounting hole (202 tooth head (2) below is equipped with tooth handle (4) with jump ring (3), joint is in tooth handle (4) upper end in tooth handle mounting hole (202), jump ring (3) joint is in the jump ring inslot at tooth handle (4) middle part.

2. A hard rock wear resistant rotary cutting pick according to claim 1, wherein the wear scale (201) is a groove encircling the pick head (2) in one turn, the number of grooves being at least 2.

3. A hard rock wear resistant rotary cutting pick according to claim 1, wherein the first projection (205) has a radial dimension greater than the second projection (207).

4. A hard rock wear resistant rotary cutting pick according to claim 3, wherein the first projection (205) and the second projection (207) are both circular arcs in a direction perpendicular to the axial line of the pick head (2).

5. The hard rock wear-resistant rotary cutting pick according to claim 1, wherein the shank mounting hole (202) is tapered with a taper of 1: 10.

6. A hard rock wear resistant rotary cutting pick according to claim 5, wherein the shank mounting bore (202) is transition fit with the shank (4).

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