CN219622687U

CN219622687U - Cemented carbide cutting pick

Info

Publication number: CN219622687U
Application number: CN202320591653.6U
Authority: CN
Inventors: 杨洪文; 吕广超; 权培浩
Original assignee: Shandong Ruizuan Drilling Tools Co ltd
Current assignee: Shandong Ruizuan Drilling Tools Co ltd
Priority date: 2023-03-23
Filing date: 2023-03-23
Publication date: 2023-09-01
Anticipated expiration: 2033-03-23

Abstract

The utility model relates to the technical field of cutting picks, in particular to a hard alloy cutting pick. The technical proposal comprises: pick head, buffer cover and buffer seat, the inside equidistance fixed mounting of buffer cover has the guide bar, and the spring has been cup jointed at the outside both ends of guide bar, and the buffer seat has been cup jointed through the through-hole in the guide bar outside, and the cross bolt hole has been seted up at the middle part of buffer seat, and the both ends fixed mounting of buffer seat has the shock pad, and cross bolt pin spare is installed through cross bolt hole joint to the inside of buffer seat. According to the utility model, the buffer seat is moved by a certain stroke through the middle drill bit, and the impact force received by the moving buffer seat is reduced through the elastic force of the spring, so that the reverse impact force received by the pick head is reduced, the problem that the pick head is easy to break due to hard objects incapable of buffering is avoided, the safety of the pick head when the pick head is pushed to cut in a coal seam is ensured, the use safety effect of the pick head is improved, and the service life of the pick head is prolonged.

Description

Cemented carbide cutting pick

Technical Field

The utility model relates to the technical field of cutting picks, in particular to a hard alloy cutting pick.

Background

The hard alloy cutting pick consists of hard alloy ball teeth brazed and alloy structural steel, is mainly used for directly cutting coal by a coal cutter and excavating coal, the cutting pick is pushed to cut in a coal seam in an impact rotation mode, and can generate severe friction with the coal seam in the excavating process, so that the service life of the cutting pick is prolonged, the cutting pick is required to be well radiated, the hard alloy cutting pick disclosed by application number CN203742599U has the advantages that the problem that the welding firmness is poor, the alloy head is easy to fall off in use, the service time of the cutting pick is short, the maintenance and replacement times are trivial, the labor efficiency is reduced, the labor intensity is increased, the defects of increasing the coal mining cost are overcome, the problem that the alloy is easy to fall off in the use process of impact rotation is solved, and the hard alloy with a similar structure also has defects in actual use, such as: the cutting pick has no buffering protection function, so that hard objects cannot be buffered when the cutting pick is pushed to cut in a coal seam in an impact rotation mode, and the cutting pick is easy to break; the function of convenient dismouting change does not have, leads to the pick to carry out timely change when advancing the cutting in different coal beds, has increased the change degree of difficulty, so need design a carbide pick.

Disclosure of Invention

The utility model aims to provide a hard alloy cutting pick so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a carbide pick, includes pick head, buffer cover and buffer seat, the inside equidistance fixed mounting of buffer cover has the guide bar, the spring has been cup jointed at the outside both ends of guide bar, the buffer seat has been cup jointed through the through-hole in the guide bar outside, cross bolt hole has been seted up at the middle part of buffer seat, the positive inside of buffer seat is opened there is the connecting hole that runs through, the both ends fixed mounting of buffer seat has the shock pad, cross bolt spare is installed through cross bolt hole joint in the inside of buffer seat, shock pad top fixed mounting has the well drill bit that extends the buffer cover inside, the top fixed mounting of well drill bit has the pick head, the radiating groove has been seted up to the inside of pick head, the blowdown groove has been seted up in the outside of pick head.

When the pick head is pushed to cut in the coal seam in an impact rotation mode and encounters hard objects, the pick head moves the buffer seat through the middle drill bit by a certain stroke, the moving buffer seat reduces the impact force through the elastic force of the spring, so that the reverse impact force on the pick head is reduced, the problem that the pick head is easy to break due to the fact that the pick head encounters hard objects and cannot be buffered is avoided, safety of the pick head when pushing and cutting in the coal seam is guaranteed, and the use safety effect and the service life of the pick head are improved; the buffer seat can be in clamping installation through the cross bolt hole inside, and the purpose of device fast assembly is realized in the clamping installation, makes things convenient for the staff to advance the cutting according to the pick and need to follow the pick of trading different specifications in different coal beds, has increased the convenient dismouting of device and has changed the function, has also reduced pick head dismouting degree of difficulty simultaneously, has promoted the efficiency that the staff changed the pick head.

Preferably, the top of the pick head is fixedly provided with pick tips, and tip protrusions are equidistantly arranged on the outer surfaces of the pick tips. The hard objects can be crushed by utilizing the tip structure of the cutting pick tip, so that the working efficiency of the cutting pick head is improved, the contact area between the cutting pick tip and the hard objects can be increased by the tip bulge, and the efficiency of crushing the hard objects by the cutting pick tip is improved.

Preferably, the reinforcing pieces are equidistantly arranged on the outer side of the middle drill bit, and the bottom extension end of the middle drill bit is movably connected with the buffer cover. The reinforcing piece can enable the middle drill bit to have the capacity of crushing other hard objects, so that the damage efficiency of the whole structure is improved, the mechanical strength of the middle drill bit can be increased through a plurality of groups of reinforcing pieces, and the torque resistance of the middle drill bit is improved.

Preferably, the bottom of the buffer cover is provided with a mounting hole, and the front thread of the buffer cover is provided with a penetrating locking bolt. Can provide the installation position for cross bolt spare through the mounting hole, make things convenient for inside cross bolt spare inserts the buffer cover, locking bolt can run through screw hole, connecting hole to with cross bolt spare firmly fix at the inside cross bolt hole of buffer seat, make the pick head more firm when carrying out the during operation, and meet also more convenient dismantlement when needing to change the part.

Preferably, the bottom of the cross bolt component is fixedly provided with a chassis, the inside of the chassis is provided with penetrating connecting bolts at equal intervals, and the front surface of the cross bolt component is provided with penetrating threaded holes. The cross latch component is matched and connected with the power mechanism through the connecting chassis and the connecting bolt, so that the device is convenient to install.

Preferably, through holes are formed in the buffer seat at equal intervals, and the through holes are correspondingly connected with the guide rods. The through hole can provide movable mounting position for the guide bar, and the buffer seat of being convenient for removes in the guide bar outside through the through hole, guarantees the steady performance that the buffer seat removed.

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

1. the pick head carries out the removal of certain stroke to the buffer seat through well drill bit, and the buffer seat that removes reduces the impact force that receives through the elastic force of spring to realize reducing the reverse impact force that the pick head received, avoid the pick head to meet hard thing and can't cushion and cause the pick easy cracked problem, guaranteed the pick head safety when advancing the cutting in the coal seam, promoted pick head safety in utilization effect and life.

2. The buffer seat can be in clamping installation through the cross bolt hole inside, and the purpose of device fast assembly is realized in the clamping installation, makes things convenient for the staff to advance the cutting according to the pick and need to follow the pick of trading different specifications in different coal beds, has increased the convenient dismouting of device and has changed the function, has also reduced pick head dismouting degree of difficulty simultaneously, has promoted the efficiency that the staff changed the pick head.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a dispersion structure according to the present utility model;

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

fig. 4 is a schematic view of a partial structure of a buffer seat according to the present utility model.

In the figure: 1. cutting pick head; 101. a sewage draining groove; 102. a pick tip; 103. a tip protrusion; 104. a heat sink; 2. a middle drill bit; 201. a reinforcing member; 3. a buffer cover; 301. a guide rod; 302. a spring; 303. a mounting hole; 304. a locking bolt; 4. a cross latch member; 401. a chassis; 402. a connecting bolt; 403. a threaded hole; 5. a buffer seat; 501. a through hole; 502. cross pin holes; 503. a shock pad; 504. and a connection hole.

Detailed Description

The technical scheme of the utility model is further described below with reference to the attached drawings and specific embodiments.

Example 1

As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the hard alloy cutting pick provided by the utility model comprises a cutting pick head 1, a buffer cover 3 and a buffer seat 5, wherein a guide rod 301 is fixedly arranged in the buffer cover 3 at equal intervals, springs 302 are sleeved at two ends of the outer side of the guide rod 301, the buffer seat 5 is sleeved at the outer side of the guide rod 301 through a through hole 501, a cross bolt hole 502 is formed in the middle of the buffer seat 5, a through connecting hole 504 is formed in the front of the buffer seat 5, shock pads 503 are fixedly arranged at two ends of the buffer seat 5, and a cross bolt piece 4 is clamped and installed in the buffer seat 5 through the cross bolt hole 502;

the bottom fixed mounting of cross latch spare 4 has chassis 401, and the connecting bolt 402 that runs through is installed to the inside equidistance of chassis 401, and the screw hole 403 that runs through has been seted up in the front of cross latch spare 4, and shock pad 503 top fixed mounting has the well drill bit 2 that extends the inside of buffer housing 3, and the top fixed mounting of well drill bit 2 has pick head 1, and radiating groove 104 has been seted up to the inside of pick head 1, and blowdown groove 101 has been seted up in the outside of pick head 1, and pick head 1's top fixed mounting has pick point 102, and tip protrusion 103 is installed to the surface equidistance of pick point 102.

The working principle of the hard alloy cutting pick based on the first embodiment is as follows: the buffer seat 5 can be internally clamped and installed through the cross bolt holes 502, the purpose of quick assembly of the device is realized through clamping and installation, a worker can conveniently replace picks with different specifications according to the need of pushing and cutting the picks in different coal beds, the function of convenient disassembly and assembly and replacement of the device is improved, meanwhile, the disassembly and assembly difficulty of the pick head 1 is reduced, and the efficiency of replacing the pick head 1 by the worker is improved;

the cross latch component 4 is matched with the connecting bolt 402 through the connecting chassis 401 to be connected with a power mechanism, so that the device is convenient to install, heat can be conducted to the outside of the pick head 1 through the heat dissipation groove 104 in the pick head 1, the temperature of the pick head 1 is reduced, the damage to the pick head 1 caused by overhigh temperature is avoided, the service life of the pick head 1 is greatly prolonged, hard objects can be crushed by utilizing the tip structure of the pick tip 102, the working efficiency of the pick head 1 is improved, the contact area between the pick tip 102 and the hard objects can be increased by the tip protrusion 103, and the efficiency of crushing the hard objects by the pick tip 102 is improved;

when the cutting pick head 1 advances the cutting in the coal seam with the mode of striking gyration and meetting hard thing, the cutting pick head 1 carries out the removal of certain stroke to the buffer seat 5 through well drill bit 2, the buffer seat 5 of removal reduces the impact force that receives through the elastic force of spring 302, thereby realize reducing the reverse impact force that cutting pick head 1 received, avoid cutting pick head 1 to meetting hard thing and can't cushion and cause the easy cracked problem of cutting pick, safety when having guaranteed cutting pick head 1 impels the cutting in the coal seam, the safe in utilization effect and the life of cutting pick head 1 have been promoted, and the cushioning effect of buffer seat 5 can be increased to the compliance that utilizes shock pad 503.

Example two

As shown in fig. 1, 2 and 3, compared with the first embodiment, the present embodiment further includes: the reinforcement 201 is installed to the outside equidistance of well drill bit 2, and the bottom extension of well drill bit 2 and buffer cover 3 swing joint, and mounting hole 303 has been seted up to the bottom of buffer cover 3, and the front screw thread of buffer cover 3 installs the locking bolt 304 that runs through, and through-hole 501 has been seted up to the inside equidistance of buffer seat 5, and through-hole 501 corresponds with guide bar 301 to be connected.

In this embodiment, as shown in fig. 1, 2 and 3, the reinforcing member 201 may enable the middle drill bit 2 to have the capability of breaking other hard objects, so as to improve the breaking efficiency of the overall structure, and through multiple groups of reinforcing members 201, the mechanical strength of the middle drill bit 2 may be increased, and the torque resistance of the middle drill bit 2 may be improved; as shown in fig. 1, 2 and 3, the mounting hole 303 can provide a mounting position for the cross bolt member 4, so that the cross bolt member 4 can be conveniently inserted into the buffer cover 3, and the locking bolt 304 can penetrate through the threaded hole 403 and the connecting hole 504, so that the cross bolt member 4 is firmly fixed in the cross bolt hole 502 in the buffer seat 5, the pick head 1 is more stable during working, and the pick head is more convenient to detach when parts need to be replaced; as shown in fig. 2 and 3, the through hole 501 can provide a movable mounting position for the guide rod 301, so that the buffer seat 5 can move outside the guide rod 301 through the through hole 501, and the moving stability of the buffer seat 5 is ensured.

The above-described embodiments are merely a few preferred embodiments of the present utility model, and many alternative modifications and combinations of the above-described embodiments will be apparent to those skilled in the art based on the technical solutions of the present utility model and the related teachings of the above-described embodiments.

Claims

1. The utility model provides a carbide pick, includes pick head (1), buffer cover (3) and buffer seat (5), its characterized in that: inside equidistance fixed mounting of buffer housing (3) has guide bar (301), spring (302) have been cup jointed at the outside both ends of guide bar (301), buffer seat (5) have been cup jointed in the outside of guide bar (301) through-hole (501), cross bolt hole (502) have been seted up at the middle part of buffer seat (5), positive inside of buffer seat (5) has connecting hole (504) that run through, the both ends fixed mounting of buffer seat (5) has shock pad (503), cross bolt spare (4) have been installed through cross bolt hole (502) joint to the inside of buffer seat (5), well drill bit (2) that extend buffer housing (3) inside are fixedly installed at shock pad (503) top, the top fixed mounting of well drill bit (2) has pick head (1), radiating groove (104) have been seted up to the inside of pick head (1), blowdown groove (101) have been seted up in the outside of pick head (1).

2. A cemented carbide cutting pick according to claim 1, wherein: the top of the cutting pick head (1) is fixedly provided with a cutting pick tip (102), and tip protrusions (103) are equidistantly arranged on the outer surface of the cutting pick tip (102).

3. A cemented carbide cutting pick according to claim 1, wherein: the reinforcing pieces (201) are equidistantly arranged on the outer side of the middle drill bit (2), and the bottom extension end of the middle drill bit (2) is movably connected with the buffer cover (3).

4. A cemented carbide cutting pick according to claim 1, wherein: the bottom of the buffer cover (3) is provided with a mounting hole (303), and the front thread of the buffer cover (3) is provided with a penetrating locking bolt (304).

5. A cemented carbide cutting pick according to claim 1, wherein: the bottom of the cross bolt component (4) is fixedly provided with a chassis (401), penetrating connecting bolts (402) are equidistantly arranged in the chassis (401), and the front surface of the cross bolt component (4) is provided with penetrating threaded holes (403).

6. A cemented carbide cutting pick according to claim 1, wherein: through holes (501) are formed in the buffer seat (5) at equal intervals, and the through holes (501) are correspondingly connected with the guide rods (301).