CN217380537U

CN217380537U - High-strength hard rock cutting pick

Info

Publication number: CN217380537U
Application number: CN202221307975.5U
Authority: CN
Inventors: 孙婧璇
Original assignee: Shandong Aide Industrial Co ltd
Current assignee: Shandong Aide Industrial Co ltd
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-06
Anticipated expiration: 2032-05-30

Abstract

The utility model discloses a high strength hard rock pick, including the pick head, the top fixedly connected with alloy tool bit of pick head, a plurality of arc wall has been seted up to the outer wall at pick head top, the jack has been seted up to the bottom of pick head, the inner wall swing joint of jack has the tooth handle, three evenly distributed's second draw-in groove has been seted up to the inner wall of jack, three evenly distributed's first draw-in groove, every have been seted up to the outer wall at tooth handle top the equal sliding connection of inner wall of second draw-in groove has the fixture block. Through the fixture block that sets up, insert the tooth head in the one end of tooth handle, rotate half tooth screw afterwards for the fixture block moves between first draw-in groove and the second draw-in groove, thereby fixes the tooth handle, because the part of main atress is great fixture block, half tooth screw does not bear the force basically, consequently is not fragile, makes holistic intensity improve, and half tooth screw rotates to be connected on the tooth head, just also makes half tooth screw be difficult for losing.

Description

High-strength hard rock cutting pick

Technical Field

The utility model belongs to the technical field of the pick, concretely relates to high strength hard rock pick.

Background

The cutting pick comprises a cutting pick handle and a polycrystalline diamond conical tooth brazed on the cutting pick handle, is mainly used on a rotary drilling 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 toothholder is worn and torn easily in the work, and the outside cover has the jump ring again on the toothholder, does not basically have wearing and tearing, when the toothholder wearing and tearing seriously change, the whole pick of digging soon needs to be changed together, causes the waste of toothholder part material like this, increases the manufacturing cost of enterprise, in order to solve this problem, has to appear some toothholders and the split type structure of toothholder among the prior art.

Traditional split type pick, it is in the same place through screw lug connection exactly between shank and the tooth head, adds the effect that the screw played the connection man-hour, and the intensity of screw is not high to influence the holistic intensity of split type pick, and the jam screw hole that splits very easily when pressurized, lead to the pick whole to scrap, and the screw is less, drops very easily when changing and loses.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength hard rock pick, in order to solve and to propose a current high strength hard rock pick in the above-mentioned background art in the use, because traditional split type pick, be in the same place through screw lug connection between its shank and the tooth head, add the effect that the screw played the connection man-hour, and the intensity of screw is not high, thereby influence the holistic intensity of split type pick, and the very easy fracture blocks up the screw hole when pressurized, lead to the pick to wholly scrap, and the screw is less, the very easy problem of losing that drops when changing.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength hard rock pick, includes the pick head, the top fixedly connected with alloy tool bit of pick head, a plurality of arc wall has been seted up to the outer wall at pick head top, the jack has been seted up to the bottom of pick head, the inner wall swing joint of jack has the tooth handle, three evenly distributed's second draw-in groove has been seted up to the inner wall of jack, three evenly distributed's first draw-in groove has been seted up to the outer wall at tooth handle top, every the equal sliding connection of inner wall of second draw-in groove has the fixture block, the outer wall of pick head rotates and is connected with half tooth screw of three evenly distributed, the outer wall and the fixture block threaded connection of half tooth screw, the outer wall and the inner wall sliding connection of first draw-in groove, second draw-in groove of fixture block.

Concretely, carry out the work of probing through the alloy tool bit, if the tooth head that is fragile, alloy tool bit department wearing and tearing back, can rotate half tooth screw, it removes along half tooth screw to drive the fixture block, make the fixture block remove the inside back of second draw-in groove completely, the fixture block no longer blocks the tooth handle, thereby the tooth head can be extracted from tooth handle department, after the tooth head of renewal, insert the tooth head in the one end of tooth handle, rotate half tooth screw afterwards, make the fixture block remove between first draw-in groove and the second draw-in groove, thereby fix the tooth handle, because the part of main atress is great fixture block, half tooth screw does not basically receive the force, therefore not fragile, make holistic intensity improve, and half tooth screw rotates and connects on the tooth head, also make half tooth screw be difficult for losing.

Preferably, the outer wall of the fixture block is provided with a threaded hole penetrating through the fixture block, and the outer wall of the half-thread screw is threaded with the inner wall of the threaded hole.

Specifically, when the half-thread screw rotates, the fixture block can move along the half-thread screw according to the principle of screw rod transmission.

Preferably, the lateral length of the clamping block is greater than the depth of the first clamping groove.

Specifically, when the fixture block is screwed into the first clamping groove, one end of the fixture block is in contact with the inner wall of the first clamping groove, and the other end of the fixture block is located inside the second clamping groove, so that the fixture block can be installed completely when the fixture block is installed, and the fixture block can be used conveniently.

Preferably, the outer wall of the tooth head is provided with three through holes which are uniformly distributed, and the inner wall of each through hole is rotatably connected with the outer wall of each half-tooth screw.

Specifically, half tooth screw rotates to be connected in the inside of through-hole, just also makes half tooth screw be difficult for droing to lose.

Preferably, the top of the tooth handle is fixedly connected with two limiting columns, two limiting holes matched with the limiting columns are formed in the tooth head, the lower ends of the two limiting holes are communicated with the tops of the insertion holes, and the inner walls of the limiting holes are movably connected with the outer walls of the limiting columns.

Specifically, the position of spacing post and spacing hole designs in advance, when the tooth head inserts the tooth handle, need not to aim at first draw-in groove and second draw-in groove earlier, only need insert the inside of jack with the top of tooth handle earlier, rotates the tooth head again for the inside that spacing post inserted spacing hole is about to first draw-in groove and second draw-in groove and aims at, and it is very convenient to use.

Preferably, a countersunk hole is formed in the top of the tooth head, a cross groove is formed in the countersunk hole, a cross block is fixedly connected to the bottom of the alloy cutter head, the outer wall of the cross block is connected with the inner wall of the cross groove in an inserting mode, and the outer wall of the alloy cutter head is connected with the inner wall of the countersunk hole in an inserting mode.

The contact area that can make alloy tool bit and tooth head is bigger with the setting of counter sink and counter sink, behind connection tooth head and alloy tool bit, can make alloy tool bit and tooth head be connected more firmly.

Preferably, the outer wall of the tooth head is provided with an annular groove, and one end of the through hole is communicated with the inside of the annular groove.

Specifically, the annular groove is used for accommodating a half-thread screw.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the fixture block that sets up, insert the tooth head in the one end of tooth handle, rotate half tooth screw afterwards for the fixture block moves between first draw-in groove and the second draw-in groove, thereby fixes the tooth handle, because the part of main atress is great fixture block, half tooth screw is not atress basically, consequently not fragile, makes holistic intensity improve, and just half tooth screw rotates to be connected on the tooth head, just also makes half tooth screw be difficult for losing.

2. Through the spacing post and the spacing hole that set up, when the tooth head inserts the tooth handle, need not to aim at first draw-in groove and second draw-in groove earlier, only need insert the inside of jack with the top of tooth handle earlier, rotate the tooth head again for the inside that spacing post inserted spacing hole is about to first draw-in groove and second draw-in groove and aims at, and it is very convenient to use.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

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

FIG. 3 is a schematic cross-sectional view of the present invention;

fig. 4 is a schematic structural view of the tooth head in the top view direction according to the present invention;

fig. 5 is a schematic view of the tooth head of the present invention viewed from the bottom;

FIG. 6 is a schematic perspective view of the tooth handle of the present invention;

FIG. 7 is a schematic perspective view of an alloy cutter head according to the present invention;

fig. 8 is an enlarged schematic view of a structure in fig. 3 according to the present invention.

In the figure: 1. a tooth head; 2. an alloy cutter head; 3. an arc-shaped slot; 4. a gear handle; 5. a first card slot; 6. a second card slot; 7. a clamping block; 8. a half-thread screw; 9. a cross block; 10. a countersunk hole; 11. a cross groove; 12. a limiting post; 13. a limiting hole; 14. an annular groove; 15. a through hole; 16. a threaded hole; 17. and (4) inserting the jack.

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 work belong to the protection scope of the present invention.

Referring to fig. 1-8, the present invention provides a technical solution: the utility model provides a high strength hard rock pick, including tooth head 1, the top fixedly connected with alloy tool bit 2 of tooth head 1, a plurality of arc wall 3 has been seted up to the outer wall at tooth head 1 top, jack 17 has been seted up to the bottom of tooth head 1, the inner wall swing joint of jack 17 has tooth handle 4, three evenly distributed's second draw-in groove 6 has been seted up to the inner wall of jack 17, three evenly distributed's first draw-in groove 5 has been seted up to the outer wall at tooth handle 4 top, the equal sliding connection of inner wall of every second draw-in groove 6 has fixture block 7, the outer wall of tooth head 1 rotates and is connected with half tooth screw 8 of three evenly distributed, half tooth screw 8's outer wall and fixture block 7 threaded connection, the outer wall and the first draw-in groove 5 of fixture block 7, the inner wall sliding connection of second draw-in groove 6.

Concretely, carry out the work of probing through alloy tool bit 2, if the tooth head 1 that is fragile, after alloy tool bit 2 department wearing and tearing, can rotate half tooth screw 8, it removes along half tooth screw 8 to drive fixture block 7, make fixture block 7 remove the inside back of second draw-in groove 6 completely, fixture block 7 no longer blocks tooth handle 4, thereby tooth head 1 can be extracted from tooth handle 4, after the tooth head 1 of renewal, insert tooth head 1 in the one end of tooth handle 4, rotate half tooth screw 8 afterwards, make fixture block 7 remove between first draw-in groove 5 and the second draw-in groove 6, thereby fix tooth handle 4, because the part of main atress is great fixture block 7, half tooth screw 8 does not bear the force basically, therefore not fragile, make holistic intensity improve, and half tooth screw 8 rotates to be connected on tooth head 1, just also make half tooth screw 8 be difficult for losing.

Preferably, the outer wall of the fixture block 7 is provided with a threaded hole 16 penetrating through the fixture block 7, and the outer wall of the half-thread screw 8 is threaded with the inner wall of the threaded hole 16.

Specifically, when the half-thread screw 8 rotates, the fixture block 7 can move along the half-thread screw 8 according to the principle of screw rod transmission.

Preferably, the lateral length of the latch 7 is greater than the depth of the first latch groove 5.

Specifically, when the fixture block 7 is screwed into the first clamping groove 5, one end of the fixture block 7 is in contact with the inner wall of the first clamping groove 5, and the other end of the fixture block 7 is located inside the second clamping groove 6, so that the fixture block 7 is mounted by screwing to the bottom during mounting, and the use is more convenient.

Preferably, the outer wall of the tooth head 1 is provided with three through holes 15 which are uniformly distributed, and the inner wall of each through hole 15 is rotatably connected with the outer wall of the half-tooth screw 8.

Specifically, the half-thread screw 8 is rotatably connected inside the through hole 15, so that the half-thread screw 8 is not easy to fall off and lose.

Preferably, the top of the toothed handle 4 is fixedly connected with two limiting columns 12, two limiting holes 13 matched with the limiting columns 12 are formed in the toothed head 1, the lower ends of the two limiting holes 13 are communicated with the tops of the insertion holes 17, and the inner walls of the limiting holes 13 are movably connected with the outer walls of the limiting columns 12.

Specifically, the position of spacing post 12 and spacing hole 13 is designed in advance, when tooth head 1 inserts tooth handle 4, need not to aim at first draw-in groove 5 and second draw-in groove 6 earlier, only need insert the inside of jack 17 with the top of tooth handle 4 earlier, rotate tooth head 1 again for spacing post 12 inserts the inside of spacing hole 13 and is about to first draw-in groove 5 and second draw-in groove 6 and aims at, and it is very convenient to use.

Preferably, a countersunk hole 10 is formed in the top of the gear head 1, a cross groove 11 is formed in the countersunk hole 10, a cross block 9 is fixedly connected to the bottom of the alloy cutter head 2, the outer wall of the cross block 9 is connected with the inner wall of the cross groove 11 in an inserted manner, and the outer wall of the alloy cutter head 2 is connected with the inner wall of the countersunk hole 10 in an inserted manner.

Specifically, the setting of cross recess 11 and counter sink 10 can make alloy tool bit 2 bigger with the area of contact of tooth head 1, behind connecting tooth head 1 and alloy tool bit 2, can make alloy tool bit 2 more firm with the connection of tooth head 1.

Preferably, the outer wall of the tooth head 1 is provided with an annular groove 14, and one end of the through hole 15 is communicated with the inside of the annular groove 14.

Specifically, an annular groove 14 is provided for receiving the half-thread screw 8.

The utility model discloses a theory of operation and use flow: when the alloy head 2 is used for drilling, if the tooth head 1 and the alloy head 2 which are easy to damage are worn, the half-thread screw 8 can be rotated to drive the clamping block 7 to move along the half-thread screw 8, so that the clamping block 7 can not block the tooth handle 4 after completely moving to the inside of the second clamping groove 6, the tooth head 1 can be pulled out from the tooth handle 4, after the new tooth head 1 is replaced, the tooth head 1 is inserted into one end of the tooth handle 4, the top of the tooth handle 4 is inserted into the insertion hole 17, then the tooth head 1 is rotated to enable the limiting column 12 to be inserted into the limiting hole 13 to align the first clamping groove 5 and the second clamping groove 6, then the half-thread screw 8 is rotated to enable the clamping block 7 to move between the first clamping groove 5 and the second clamping groove 6, so that the tooth handle 4 is fixed, and the half-thread screw 8 basically has no stress due to the fact that the main stressed part is the larger clamping block 7, therefore, the screw is not easy to damage, the strength of the whole screw is improved, and the half-thread screw 8 is rotatably connected to the tooth head 1, so that the half-thread screw 8 is not easy to lose.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high strength hard rock pick, includes prong (1), its characterized in that: the top of the tooth head (1) is fixedly connected with an alloy cutter head (2), the outer wall of the top of the tooth head (1) is provided with a plurality of arc-shaped grooves (3), the bottom of the tooth head (1) is provided with an insertion hole (17), the inner wall of the insertion hole (17) is movably connected with a tooth handle (4), the inner wall of the jack (17) is provided with three second clamping grooves (6) which are uniformly distributed, the outer wall of the top of the gear handle (4) is provided with three first clamping grooves (5) which are uniformly distributed, the inner wall of each second clamping groove (6) is connected with a clamping block (7) in a sliding way, the outer wall of the tooth head (1) is rotationally connected with three half-tooth screws (8) which are uniformly distributed, the outer wall of the half-thread screw (8) is in threaded connection with the clamping block (7), and the outer wall of the clamping block (7) is in sliding connection with the inner walls of the first clamping groove (5) and the second clamping groove (6).

2. A high strength hard rock pick according to claim 1, wherein: the outer wall of the clamping block (7) is provided with a threaded hole (16) penetrating through the clamping block (7), and the outer wall of the half-thread screw (8) is threaded with the inner wall of the threaded hole (16).

3. A high strength hard rock pick according to claim 1, wherein: the transverse length of the clamping block (7) is larger than the depth of the first clamping groove (5).

4. A high strength hard rock pick according to claim 1, wherein: three evenly distributed through holes (15) are formed in the outer wall of the tooth head (1), and the inner wall of each through hole (15) is rotatably connected with the outer wall of the corresponding half-tooth screw (8).

5. A high strength hard rock pick according to claim 1, wherein: two spacing posts (12) of top fixedly connected with of tooth handle (4), two spacing holes (13) with spacing post (12) looks adaptation are seted up to the inside of tooth head (1), two the lower extreme in spacing hole (13) is linked together with the top of jack (17), the inner wall in spacing hole (13) and the outer wall swing joint of spacing post (12).

6. A high strength hard rock pick according to claim 1, wherein: counter sink (10) have been seted up at the top of gullet (1), cross recess (11) have been seted up to the inside of counter sink (10), the bottom fixedly connected with cross piece (9) of alloy tool bit (2), the outer wall of cross piece (9) is pegged graft with the inner wall of cross recess (11), the outer wall of alloy tool bit (2) is pegged graft with the inner wall of counter sink (10).

7. A high strength hard rock pick defined by claim 4 wherein: an annular groove (14) is formed in the outer wall of the tooth head (1), and one end of the through hole (15) is communicated with the inside of the annular groove (14).