CN217380399U

CN217380399U - Down-the-hole impacter with buffer function

Info

Publication number: CN217380399U
Application number: CN202221103376.1U
Authority: CN
Inventors: 王东晓; 张晓方
Original assignee: An Bai Tuo Zhangjiakou Construction Mine Equipment Co ltd
Current assignee: An Bai Tuo Zhangjiakou Construction Mine Equipment Co ltd
Priority date: 2022-05-10
Filing date: 2022-05-10
Publication date: 2022-09-06
Anticipated expiration: 2032-05-10

Abstract

The utility model provides a down-hole impacter with buffer function relates to the impacter field, including outer tube, back connection, check valve, distribution seat, cylinder, piston, uide bushing, front connection and bore bit, the left end of outer tube is equipped with the back connection, the position department that the inside of outer tube is close to the back connection is equipped with the check valve, the right side of check valve is the distribution seat, the right side of distribution seat is the cylinder, slidable mounting has the piston in the cylinder, the right side of piston is equipped with the uide bushing, the uide bushing is connected with the inner wall of outer tube; the utility model discloses a set up the buffering ring, when the empty circumstances of hitting appears in the bore bit, the shock attenuation is cushioned to the impact force that produces when can retrieving the bore bit through the buffering ring to prevent that it from appearing damaging, cushion being provided with of subassembly simultaneously and can cushion the impact force that the bore bit produced the preceding connector, thereby protect the preceding connector.

Description

Down-the-hole impacter with buffer function

Technical Field

The utility model relates to an impacter technical field especially relates to a down-the-hole impacter with buffer function.

Background

The down-the-hole hammer is a component of down-the-hole drill and belongs to a working device of the down-the-hole drill. The down-the-hole impactors are classified into low wind pressure down-the-hole impactors, medium wind pressure down-the-hole impactors and high wind pressure down-the-hole impactors according to pressure difference. The drilling device is widely applied to hole forming operation in various industrial projects, is suitable for dry type, wind-water mixing and blast hole water burst wet type operation, has reliable working performance, and is ideal drilling blast hole equipment at present;

under the complicated rock condition, because the air shot of down-the-hole impacter is when more, the energy of hitting the beating can't effectively transmit the rock to absorbed by the snap ring, lead to the bore bit fragile of snap ring or down-the-hole impacter, consequently the utility model provides a down-the-hole impacter with buffer function is in order to solve the problem that exists among the prior art.

SUMMERY OF THE UTILITY MODEL

In view of the above problem, the utility model provides a down-the-hole impacter with buffer function, this down-the-hole impacter with buffer function is through setting up the buffering ring, when the empty condition of hitting appears in the bore bit, and the shock attenuation is cushioned to the impact force that produces when retrieving the bore bit through the buffering ring to prevent that it from appearing damaging.

For realizing the purpose of the utility model, the utility model discloses a following technical scheme realizes: a down-the-hole impactor with a buffering function comprises an outer sleeve, a rear joint, a check valve, an air distribution seat, an air cylinder, a piston, a guide sleeve, a front joint and a drill bit, wherein the rear joint is arranged at the left end of the outer sleeve, the check valve is arranged in the outer sleeve at a position close to the rear joint, the air distribution seat is arranged on the right side of the check valve, the air cylinder is arranged on the right side of the air distribution seat, the piston is arranged in the air cylinder in a sliding mode, the guide sleeve is arranged on the right side of the piston and connected with the inner wall of the outer sleeve, the front joint is arranged at the right end of the outer sleeve, a buffering ring is arranged in the front joint at a position close to the guide sleeve through an assembling component, the drill bit is arranged on the front joint, a limiting component for limiting the drill bit is arranged in the buffering ring, and a buffering component is arranged between the front joint and the drill bit.

The further improvement lies in that: the buffer ring comprises a first half ring, a second half ring, a first spring and a splicing assembly, wherein the first half ring and the second half ring are both provided with two groups, the first spring is fixedly arranged between the first half ring and the two groups of second half rings, the first spring is provided with multiple groups, and the first half ring and the second half ring are spliced through the splicing assembly.

The further improvement lies in that: the splicing assembly comprises splicing blocks and splicing grooves, the splicing blocks are arranged at the upper end of the first half ring and the lower end of the second half ring, the splicing grooves matched with the splicing blocks are arranged at the lower end of the first half ring and the upper end of the second half ring, and the splicing blocks are spliced together with the splicing grooves.

The further improvement lies in that: the assembly component comprises an installation block and an installation groove, the installation block is arranged on the outer wall of each of the first half ring and the second half ring, the installation groove is formed in the inner wall of the front connector, and the installation block is inserted into the installation groove to be assembled.

The further improvement lies in that: the limiting assembly comprises a limiting block and a limiting groove, a plurality of groups of limiting blocks are arranged at the left end of the drill bit, a plurality of groups of limiting grooves are formed in the inner walls of the first half ring and the second half ring, and the left end of the drill bit is inserted into the first half ring and the second half ring and is limited by the limiting blocks matched with the limiting rings.

The further improvement lies in that: the buffer assembly comprises a second spring, a push rod, a limiting plate and a bearing plate, the right end of the front joint is provided with a plurality of groups of cavities in an annular array distribution mode, the push rod penetrates through the cavities, the right end of the push rod is fixedly connected with the bearing plate, the limiting plate is arranged at the left end of the push rod, and the second spring is fixedly arranged between the limiting plate and the inner wall of the cavity.

The further improvement lies in that: the bearing plate is made of rubber and is circular.

The utility model has the advantages that: the utility model discloses a set up the buffering ring, when the empty circumstances of hitting appears in the bore bit, the shock attenuation is cushioned to the impact force that produces when can retrieving the bore bit through the buffering ring to prevent that it from appearing damaging, the buffering subassembly be provided with simultaneously can cushion the impact force that the bore bit produced to preceding connector, thereby protect preceding connector, the setting of spacing subassembly and assembly subassembly can carry out spacing fixed to the position of bore bit again simultaneously, thereby guarantee the stability of bore bit during operation.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a schematic diagram of the buffer ring according to the present invention.

Fig. 3 is a schematic diagram of the buffer ring according to the present invention.

Fig. 4 is an internal schematic view of the front connector of the present invention.

Fig. 5 is a schematic view of the drill bit of the present invention.

Fig. 6 is an enlarged schematic view of the present invention at a in fig. 1.

Wherein: 1. an outer sleeve; 2. a rear joint; 3. a check valve; 4. a gas distribution base; 5. a cylinder; 6. a piston; 7. A guide sleeve; 8. a front joint; 9. a drill bit; 10. a cushion ring; 11. a first half ring; 12. a second half ring; 13. A first spring; 14. splicing blocks; 15. splicing grooves; 16. mounting blocks; 17. mounting grooves; 18. a limiting block; 19. a limiting groove; 20. a second spring; 21. a push rod; 22. a limiting plate; 23. a bearing plate; 24. a cavity.

Detailed Description

In order to deepen the understanding of the present invention, the following embodiments will be combined to make the present invention do further details, and the present embodiment is only used for explaining the present invention, and does not constitute the limitation of the protection scope of the present invention.

According to the

drawings

1, 2, 3, 4, 5 and 6, the embodiment provides a down-the-hole hammer with a buffering function, which comprises an outer sleeve 1, a rear joint 2, a check valve 3, a gas distribution seat 4, a cylinder 5, a piston 6, a guide sleeve 7, a front joint 8 and a bit 9, wherein the rear joint 2 is arranged at the left end of the outer sleeve 1, the check valve 3 is arranged in the outer sleeve 1 at a position close to the rear joint 2, the gas distribution seat 4 is arranged on the right side of the check valve 3, the cylinder 5 is arranged on the right side of the gas distribution seat 4, the piston 6 is slidably installed in the cylinder 5, the guide sleeve 7 is arranged on the right side of the piston 6, the guide sleeve 7 is connected with the inner wall of the outer sleeve 1, the front joint 8 is arranged at the right end of the outer sleeve 1, a buffering ring 10 is installed in the front joint 8 at a position close to the guide sleeve 7 through an assembling component, the bit 9 is arranged on the front joint 8, when the device is used, air flow is conveyed through the rear connector 2, air enters the cylinder 5 and pushes the piston 6 to do left-right reciprocating motion, the movement direction of the piston 6 can be limited by the arrangement of the guide sleeve 7, meanwhile, the piston 6 pushes the drill bit 9 on the front connector 8 to do left-right reciprocating motion so as to impact and crush, when the drill bit 9 is in idle striking, the buffer ring can be hit by the drill bit 9 in recovery, and meanwhile, the buffer assembly is matched to dissolve the impact force recovered by the drill bit 9, so that the drill bit 9 is prevented from directly hitting the front connector 8, the drill bit 9 and the front connector 8 are damaged, and the service lives of the drill bit 9 and the front connector 8 are prolonged.

Buffer ring 10 includes first semi-ring 11, second semi-ring 12, first spring 13 and concatenation subassembly, first semi-ring 11 all is equipped with two sets ofly with second semi-ring 12, and is two sets of all fixed first spring 13 that is equipped with between first semi-ring 11 and the two sets of second semi-ring 12, first spring 13 is equipped with the multiunit, splice through the concatenation subassembly between first semi-ring 11 and the second semi-ring 12, through setting buffer ring 10 to first semi-ring 11 and second semi-ring 12, be convenient for install buffer ring 10, when first semi-ring 11 and second semi-ring 12 received the impact force simultaneously, first spring 13 contracted to cushion the impact force, prevent that drill bit 9 from directly hitting on front connector 8.

The splicing assembly comprises splicing blocks 14 and splicing grooves 15, the splicing blocks 14 are arranged at the upper end of the first half ring 11 and the lower end of the second half ring 12, the splicing grooves 15 matched with the splicing blocks 14 are arranged at the lower end of the first half ring 11 and the upper end of the second half ring 12, the splicing blocks 14 are spliced with the splicing grooves 15, and the first half ring 11 and the second half ring 12 can form a complete buffer ring 10 through the clamping arrangement of the splicing blocks 14 and the splicing grooves 15, so that the drill bit 9 is buffered.

The assembling component comprises an installing block 16 and an installing groove 17, the installing block 16 is arranged on the outer wall of each of the first half ring 11 and the second half ring 12, the installing groove 17 is formed in the inner wall of the front connector 8, the installing block 16 is inserted into the installing groove 17 for assembling, and the buffering ring 10 can be limited and installed inside the front connector 8 through the installing block 16 and the installing groove 17, so that the buffering ring is prevented from rotating during working, and the stability of the buffering ring is guaranteed.

The limiting assembly comprises a limiting block 18 and a limiting groove 19, a plurality of groups of limiting blocks 18 are arranged at the left end of the drill bit 9, a plurality of groups of limiting grooves 19 are arranged on the inner walls of the first half ring 11 and the second half ring 12, the left end of the drill bit 9 is inserted into the first half ring 11 and the second half ring 12 and limits the drill bit 9 through the limiting block 18 matched with the limiting ring, the drill bit 9 is installed in the front joint 8, and the drill bit 9 is limited through the limiting blocks 18 and the limiting grooves 19, so that the drill bit 9 is prevented from rotating during operation.

The buffer assembly comprises a second spring 20, a push rod 21, a limit plate 22 and a bearing plate 23, the right end of the front connector 8 is provided with a plurality of groups of cavities 24 in an annular array distribution mode, the push rod 21 penetrates through the cavities 24, the right end of the push rod 21 is fixedly connected with the bearing plate 23, the limit plate 22 is arranged at the left end of the push rod 21, the second spring 20 is fixedly arranged between the limit plate 22 and the inner wall of the cavity 24, when the drill bit 9 is retracted, the drill bit 9 can press the bearing plate 23 to move towards the left side, and therefore the limit plate 22 on the push rod 21 is driven to press the second spring 20 to contract, and the drill bit 9 is buffered through the elastic potential energy of the second spring 20, so that the drill bit is prevented from being directly contacted with the front connector 8.

The bearing plate 23 is made of rubber, and the bearing plate 23 is circular.

When the down-the-hole hammer with the buffering function is used, air flow is conveyed through the rear connector 2, air enters the inside of the air cylinder 5 and pushes the piston 6 to do left-right reciprocating motion, the arrangement of the guide sleeve 7 limits the motion direction of the piston 6, meanwhile, the piston 6 pushes the drill bit 9 on the front connector 8 to do left-right reciprocating motion, so that impact crushing is performed, when the drill bit 9 is in idle impact, the drill bit 9 is recycled to hit the buffering ring, meanwhile, the drill bit 9 presses the bearing plate 23 to move towards the left side, so that the limiting plate 22 on the push rod 21 is driven to press the second spring 20 to contract, the drill bit 9 is buffered through the elastic potential energy of the second spring 20, the drill bit 9 is prevented from being directly contacted with the front connector 8, the impact force recycled by the drill bit 9 is dissolved, the drill bit 9 is prevented from being directly hit on the front connector 8, and the drill bit 9 and the front connector 8 are damaged, increasing their useful life.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a down-the-hole impacter with buffer function, includes outer tube (1), rear joint (2), check valve (3), distribution seat (4), cylinder (5), piston (6), uide bushing (7), front joint (8) and bore bit (9), its characterized in that: the left end of the outer sleeve (1) is provided with a rear joint (2), the position of the inner part of the outer sleeve (1) close to the rear joint (2) is provided with a check valve (3), the right side of the check valve (3) is provided with an air distribution seat (4), the right side of the air distribution seat (4) is provided with an air cylinder (5), a piston (6) is arranged in the cylinder (5) in a sliding way, a guide sleeve (7) is arranged on the right side of the piston (6), the guide sleeve (7) is connected with the inner wall of the outer sleeve (1), the right end of the outer sleeve (1) is provided with a front joint (8), a buffer ring (10) is arranged at the position of the inner part of the front joint (8) close to the guide sleeve (7) through an assembly component, the drill bit is characterized in that a drill bit (9) is arranged on the front connector (8), a limiting assembly for limiting the drill bit (9) is arranged inside the buffer ring (10), and a buffer assembly is arranged between the front connector (8) and the drill bit (9).

2. A down-the-hole impactor with a buffering function as defined in claim 1, wherein: the buffer ring (10) comprises a first half ring (11), a second half ring (12), a first spring (13) and a splicing assembly, wherein the first half ring (11) and the second half ring (12) are both provided with two groups, the first spring (13) is fixedly arranged between the first half ring (11) and the two groups of second half rings (12), the first spring (13) is provided with multiple groups, and the first half ring (11) and the second half rings (12) are spliced through the splicing assembly.

3. A down-the-hole impactor with a buffering function as defined in claim 2, wherein: the splicing assembly comprises splicing blocks (14) and splicing grooves (15), the splicing blocks (14) are arranged at the upper end of the first half ring (11) and the lower end of the second half ring (12), the splicing grooves (15) matched with the splicing blocks (14) are arranged at the lower end of the first half ring (11) and the upper end of the second half ring (12), and the splicing blocks (14) are spliced together with the splicing grooves (15).

4. A down-the-hole impactor with a buffering function as defined in claim 2, wherein: the assembling component comprises an installing block (16) and an installing groove (17), the installing block (16) is arranged on the outer wall of the first half ring (11) and the outer wall of the second half ring (12), the installing groove (17) is formed in the inner wall of the front joint (8), and the installing block (16) is inserted into the installing groove (17) to be assembled.

5. A down-the-hole impactor with a buffering function as defined in claim 2, wherein: the limiting assembly comprises a limiting block (18) and a limiting groove (19), a plurality of groups of limiting blocks (18) are arranged at the left end of the drill bit (9), a plurality of groups of limiting grooves (19) are arranged on the inner walls of the first half ring (11) and the second half ring (12), and the left end of the drill bit (9) is inserted into the first half ring (11) and the second half ring (12) and is limited by the limiting ring matched with the limiting blocks (18).

6. A down-the-hole impactor with a buffering function as defined in claim 1, wherein: buffer unit includes second spring (20), push rod (21), limiting plate (22) and bearing plate (23), the right-hand member of front connector (8) is that the annular array distributes and has multiunit cavity (24), cavity (24) inside runs through push rod (21), the right-hand member and bearing plate (23) fixed connection of push rod (21), the left end of push rod (21) is equipped with limiting plate (22), fixed second spring (20) that are equipped with between the inner wall of limiting plate (22) and cavity (24).

7. A down-the-hole impactor with a buffering function as defined in claim 6, wherein: the bearing plate (23) is made of rubber, and the bearing plate (23) is circular.