CN214062851U - Bundling type reverse circulation down-the-hole hammer - Google Patents
Bundling type reverse circulation down-the-hole hammer Download PDFInfo
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- CN214062851U CN214062851U CN202022202607.1U CN202022202607U CN214062851U CN 214062851 U CN214062851 U CN 214062851U CN 202022202607 U CN202022202607 U CN 202022202607U CN 214062851 U CN214062851 U CN 214062851U
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Abstract
A cluster type reverse circulation down-the-hole hammer is characterized in that an upper partition plate and a lower partition plate are fixedly connected to the upper part of an inner cavity of a cylinder type shell at intervals up and down; the axis of the outer hexagonal joint is provided with an air supply channel, and the lower end of the air supply channel is fixedly inserted into the mounting hole of the upper partition plate; the guide pipes are all arranged in the inner cavity of the cylinder type shell; the impacter is correspondingly inserted into the guide pipe, the upper end of the impacter is fixedly inserted into the mounting groove of the lower partition plate, and the mounting groove is communicated with the gas distribution chamber through the communicating hole; the impactor mounting plate is arranged at the bottom of the inner cavity of the cylindrical shell and is matched with the locking mechanism and the down-the-hole hammer bottom plate to limit the tail end of the impactor; the slag discharge pipes are arranged in the barrel type shell, the lower ends of the slag discharge pipes sequentially penetrate through the impactor mounting plate and the down-the-hole hammer bottom plate, and the upper ends of the slag discharge pipes sequentially penetrate through the lower partition plate and the upper partition plate. The down-the-hole hammer has high deslagging efficiency, the deslagging channel is not easy to block, the labor intensity of workers can be effectively reduced, and the down-the-hole hammer is beneficial to improving the operating efficiency.
Description
Technical Field
The utility model belongs to the technical field of drilling equipment, concretely relates to bundling reverse circulation down-the-hole hammer.
Background
In the down-the-hole hammer construction, if a single impactor is adopted in the large-diameter pile hole construction, serious product defects such as overhigh air pressure, low impact frequency, overhigh manufacturing cost, low construction efficiency and the like can be caused. Therefore, a plurality of small impactors are bound to form a cluster type down-the-hole hammer for operation, so that the large-diameter pile hole is constructed at low cost. However, dust generated in the operation process of the conventional cluster down-the-hole hammer is led out of a pile hole through a guide injection groove arranged on the outer side of the cluster down-the-hole hammer, the slag discharge mode is low in efficiency, and the condition that flow guide is not smooth due to blockage of large particles on the outer side is easy to occur, so that the cluster down-the-hole hammer needs to be frequently maintained and checked, the labor intensity of workers is increased, and the operation efficiency is reduced.
Disclosure of Invention
Problem to above-mentioned prior art exists, the utility model provides a bundling reverse circulation down-the-hole hammer, this down-the-hole hammer's row's sediment is efficient, and the difficult emergence of slag discharge channel is blockked up, can effectively reduce workman's intensity of labour, can help improving the operating efficiency of down-the-hole hammer.
In order to achieve the purpose, the utility model provides a cluster type reverse circulation down-the-hole hammer, which comprises an upper clapboard, a lower clapboard, a cylinder type shell, an outer hexagonal joint, a plurality of guide pipes, a plurality of impactors, a connecting sleeve, a locking mechanism, a down-the-hole hammer bottom plate and a plurality of deslagging pipes;
the upper partition plate and the lower partition plate are both horizontally arranged and are fixedly connected to the upper part of the inner cavity of the cylindrical shell at intervals from top to bottom; the upper partition plate and the lower partition plate are fixedly connected through a plurality of air chamber supporting plates which are longitudinally arranged; a closed air distribution chamber is formed among the upper partition plate, the lower partition plate and the upper part of the cylindrical shell; the center of the upper clapboard is provided with a mounting hole; the lower part of the lower clapboard is provided with a plurality of mounting grooves corresponding to the plurality of impactors, and the upper part of the lower clapboard is provided with a plurality of communication holes for communicating the gas distribution chamber with the mounting grooves;
an axially through air supply channel is arranged at the axis of the outer hexagonal joint; the lower end of the outer hexagonal joint is fixedly inserted into the mounting hole; the connecting sleeve is fixedly sleeved outside the lower end of the outer hexagonal joint, and the lower end of the connecting sleeve is fixedly connected with the upper end face of the upper partition plate;
the guide pipes are all arranged in the inner cavity of the barrel type shell and are coaxially arranged with the mounting grooves respectively, the upper ends of the guide pipes are fixedly connected with the lower ends of the lower partition plates, and the lower ends of the guide pipes are abutted against the upper end of the impactor mounting plate positioned at the bottom of the inner cavity of the barrel type shell;
the impactor mounting plate is fixedly connected with the barrel-type shell, and a plurality of through holes A are formed in the part corresponding to the impactors;
the plurality of impactors are correspondingly inserted into the plurality of guide pipes, the upper ends of the impactors are fixedly inserted into the mounting grooves, and the lower ends of the impactors penetrate through the through holes A and are fixedly connected with the impacter mounting plate;
the locking mechanism is arranged below the impactor mounting plate and consists of a plurality of outer ring locking devices and a plurality of inner ring locking devices, the plurality of outer ring locking devices correspond to the plurality of impactors positioned on the edge of the cylindrical shell, and the plurality of inner ring locking devices correspond to the plurality of impactors positioned in the cylindrical shell; the outer ring locking device consists of two arc-shaped clamping plates which are matched with each other; the two arc-shaped clamping plates are enclosed outside the drill rod clamping sleeves on the corresponding impactors and are fixedly connected with the lower ends of the impacter mounting plates through bolts; the inner ring locking device consists of two semicircular clamping plates which are oppositely arranged; the two semicircular clamping plates are enclosed outside the drill rod clamping sleeves on the corresponding impactors and are fixedly connected with the lower ends of the impacter mounting plates through bolts;
the bottom plate of the down-the-hole hammer is horizontally arranged below the locking mechanism, a plurality of through holes B are formed in the part of the bottom plate corresponding to the tail ends of the plurality of impactors, and the bottom plate of the down-the-hole hammer is sleeved outside the tail ends of the plurality of impactors through the plurality of through holes B; the bottom plate of the down-the-hole hammer is fixedly connected with the mounting plate of the impactor through bolts;
the lower ends of the slag discharge pipes sequentially penetrate through the impactor mounting plate and the down-the-hole hammer bottom plate and are stopped at positions close to the tail ends of the drill bits on the impactor mounting plate; the upper end of the slag discharging pipe sequentially penetrates through the lower partition plate and the upper partition plate and is stopped at a position close to the upper partition plate.
Further, in order to improve the efficiency of drilling, simultaneously, can also be favorable to protecting cylindric casing, still include a plurality of cones, the even lower extreme of installing at the cylindric casing of a plurality of cones circumference.
Furthermore, in order to ensure the connection strength, the connecting sleeve is fixedly connected with the upper partition plate through a plurality of reinforcing rib plates which are uniformly distributed in the circumferential direction.
Further, for convenience of positioning during connection, a pair of positioning grooves is formed in the left end and the right end of the upper portion of the outer hexagonal joint in a staggered mode.
In the utility model, the axis passing through the outer hexagonal joint is arranged in the air supply channel; the compressed body can be filled into the air distribution chamber, thereby facilitating the supply of the working air; the guide pipe is arranged in the cylindrical shell, so that the installation of the impactor is facilitated; the lower end of the impactor can be fixed through the impactor mounting plate, and the locking mechanism can be conveniently mounted, so that the lower end of the impactor can be conveniently limited; the locking mechanism and the impactor mounting plate can be longitudinally limited conveniently through the arrangement of the bottom plate of the down-the-hole hammer. Through making the setting of scum pipe inside the cylindric casing, and the equipartition has a plurality ofly, the dust that can be convenient for produce among the drilling operation process is by the inside baffle top of leading to of cylinder casing to be convenient for derive fast of operation dust. The slag discharge pipe is arranged inside the cylindrical shell, so that the blockage caused by large particles in the operation process can be avoided, and the smoothness of discharging can be ensured. The down-the-hole hammer does not need frequent maintenance by workers, can reduce the labor intensity of the workers, and is beneficial to improving the working efficiency.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a bottom view of FIG. 1;
fig. 4 is a cross-sectional view of the present invention;
FIG. 5 is an enlarged view of a portion I of FIG. 3;
fig. 6 is a partially enlarged view of a portion ii in fig. 3.
In the figure: 1. the device comprises an outer hexagonal connector, 2, a reinforcing rib plate, 3, an upper partition plate, 4, an air chamber supporting plate, 5, a barrel type shell, 6, a lower partition plate, 7, a guide barrel, 8, an impactor, 9, an impactor mounting plate, 10, a down-the-hole hammer bottom plate, 11, an outer ring locking device, 12, an inner ring locking device, 13, a slag discharge pipe, 14, a cone, 15, an air supply channel, 16, a mounting hole, 17, a connecting sleeve, 18, an air distribution chamber, 19, a mounting groove, 20, a communication hole, 21, a semicircular clamping plate, 22, an arc clamping plate, 23 and a positioning groove.
Detailed Description
The present invention will be further explained below.
As shown in fig. 1 to 6, a cluster type reverse circulation down-the-hole hammer comprises an upper partition plate 3, a lower partition plate 6, a cylindrical shell 5, an outer hexagonal joint 1, a plurality of guide pipes 7, a plurality of impactors 8, a connecting sleeve 17, a locking mechanism, a down-the-hole hammer bottom plate 10 and a plurality of slag discharge pipes 13;
the upper partition plate 3 and the lower partition plate 6 are both horizontally arranged and fixedly connected to the upper part of the inner cavity of the cylindrical shell 5 at intervals from top to bottom; the upper partition plate 3 and the lower partition plate 6 are fixedly connected through a plurality of air chamber supporting plates 4 which are longitudinally arranged; a closed air distribution chamber 18 is formed among the upper partition plate 3, the lower partition plate 6 and the upper part of the cylinder type shell 5; a mounting hole 16 is formed in the center of the upper partition plate 3; the lower part of the lower clapboard 6 is provided with a plurality of mounting grooves 19 corresponding to the plurality of impactors 8, and the upper part of the lower clapboard 6 is provided with a plurality of communication holes 20 for communicating the air distribution chamber 18 and the plurality of mounting grooves 19;
an axially through air supply channel 15 is arranged at the axis of the outer hexagonal joint 1; the lower end of the outer hexagonal connector 1 is fixedly inserted into the mounting hole 16; the connecting sleeve 17 is fixedly sleeved outside the lower end of the outer hexagonal joint 1, and the lower end of the connecting sleeve is fixedly connected with the upper end face of the upper partition plate 3;
the guide pipes 7 are all arranged in the inner cavity of the barrel-type shell 5 and are coaxially arranged with the installation grooves 19 respectively, the upper ends of the guide pipes 7 are fixedly connected with the lower end of the lower partition plate 6, and the lower ends of the guide pipes are abutted against the upper end of the impactor installation plate 9 positioned at the bottom of the inner cavity of the barrel-type shell 5;
the impactor mounting plate 9 is fixedly connected with the barrel-type shell 5, and a plurality of through holes A are formed in the part corresponding to the impactors 8;
the impactors 8 are correspondingly inserted into the guide pipes 7, the upper ends of the impactors 8 are fixedly inserted into the mounting grooves 19, and the lower ends of the impactors 8 penetrate through the through holes A and are fixedly connected with the impacter mounting plate 9;
the locking mechanism is arranged below the impactor mounting plate 9 and consists of a plurality of outer ring locking devices 11 and a plurality of inner ring locking devices 12, the plurality of outer ring locking devices 11 correspond to the plurality of impactors 8 positioned on the edge of the barrel-type shell 5, and the plurality of inner ring locking devices 12 correspond to the plurality of impactors 8 positioned inside the barrel-type shell 5; the outer ring locking device 11 consists of two arc-shaped clamping plates 22 which are matched with each other; the two arc-shaped clamping plates 22 are enclosed outside the drill rod clamping sleeves on the corresponding impactors 8 and are fixedly connected with the lower ends of the impacter mounting plates 9 through bolts; the outer edge surface of the arc-shaped clamping plate 22 is positioned inside the barrel-type shell 5; the inner ring locking device 12 consists of two semicircular clamping plates 21 which are oppositely arranged; the two semicircular clamping plates 21 are enclosed outside the drill rod clamping sleeves on the corresponding impactors 8 and are fixedly connected with the lower ends of the impacter mounting plates 9 through bolts;
the down-the-hole hammer bottom plate 10 is horizontally arranged below the locking mechanism, a plurality of through holes B are formed in the part of the down-the-hole hammer bottom plate corresponding to the tail ends of the plurality of impactors 8, and the down-the-hole hammer bottom plate is sleeved on the outer sides of the tail ends of the plurality of impactors 8 through the plurality of through holes B; the bottom plate 10 of the down-the-hole hammer is fixedly connected with the mounting plate 9 of the impactor through bolts; a space for accommodating an outer ring locking device 11 and an inner ring locking device 12 is arranged between the bottom plate 10 of the down-the-hole hammer and the impactor mounting plate 9;
the slag discharge pipes 13 are all arranged inside the barrel-type shell 5 and are evenly distributed among the impactors 8, and the lower ends of the slag discharge pipes 13 sequentially penetrate through the impactors mounting plate 9 and the down-the-hole hammer bottom plate 10 and are stopped at positions close to the tail ends of the drill bits on the impactors mounting plate 9; the upper end of the slag discharging pipe 13 sequentially penetrates through the lower partition plate 6 and the upper partition plate 3 and is stopped at a position close to the upper partition plate 3. The slag discharge pipe 13 is hermetically connected with the lower partition plate 6 and the upper partition plate 3 to ensure the tightness of the gas distribution chamber 18.
In order to improve the efficiency of drilling and to facilitate protection of the cylindrical shell, a plurality of cones 14 are included, the plurality of cones 14 being mounted circumferentially and uniformly on the lower end of the cylindrical shell 5.
In order to ensure the connection strength, the connecting sleeve 17 is fixedly connected with the upper baffle plate 3 through a plurality of reinforcing rib plates 2 which are uniformly distributed in the circumferential direction.
In order to facilitate positioning during connection, a pair of positioning grooves 23 are formed in the left and right ends of the upper portion of the outer hexagonal joint 1 in a staggered manner.
The axis of the outer hexagonal joint is arranged in the air supply channel; the compressed body can be filled into the air distribution chamber, thereby facilitating the supply of the working air; the guide pipe is arranged in the cylindrical shell, so that the installation of the impactor is facilitated; the lower end of the impactor can be fixed through the impactor mounting plate, and the locking mechanism can be conveniently mounted, so that the lower end of the impactor can be conveniently limited; the locking mechanism and the impactor mounting plate can be longitudinally limited conveniently through the arrangement of the bottom plate of the down-the-hole hammer. Through making the setting of scum pipe inside the cylindric casing, and the equipartition has a plurality ofly, the dust that can be convenient for produce among the drilling operation process is by the inside baffle top of leading to of cylinder casing to be convenient for derive fast of operation dust. The slag discharge pipe is arranged inside the cylindrical shell, so that the blockage caused by large particles in the operation process can be avoided, and the smoothness of discharging can be ensured. The down-the-hole hammer does not need frequent maintenance by workers, can reduce the labor intensity of the workers, and is beneficial to improving the working efficiency.
Claims (4)
1. A cluster type reverse circulation down-the-hole hammer comprises an upper partition plate (3), a lower partition plate (6), a cylinder type shell (5), an outer hexagonal joint (1), a plurality of guide pipes (7) and a plurality of impactors (8);
the device is characterized by also comprising a connecting sleeve (17), a locking mechanism, a down-the-hole hammer bottom plate (10) and a plurality of slag discharge pipes (13);
the upper partition plate (3) and the lower partition plate (6) are both horizontally arranged and fixedly connected to the upper part of the inner cavity of the cylindrical shell (5) at intervals from top to bottom; the upper partition plate (3) and the lower partition plate (6) are fixedly connected through a plurality of air chamber supporting plates (4) which are longitudinally arranged; a closed air distribution chamber (18) is formed among the upper partition plate (3), the lower partition plate (6) and the upper part of the cylinder type shell (5); a mounting hole (16) is formed in the center of the upper partition plate (3); the lower part of the lower clapboard (6) is provided with a plurality of mounting grooves (19) corresponding to the plurality of impactors (8), and the upper part of the lower clapboard (6) is provided with a plurality of communicating holes (20) communicating the air distribution chamber (18) with the mounting grooves (19);
an axially through air supply channel (15) is arranged at the axis of the outer hexagonal joint (1); the lower end of the outer hexagonal joint (1) is fixedly inserted into the mounting hole (16); the connecting sleeve (17) is fixedly sleeved outside the lower end of the outer hexagonal joint (1), and the lower end of the connecting sleeve is fixedly connected with the upper end face of the upper partition plate (3);
the guide pipes (7) are all arranged in the inner cavity of the barrel-type shell (5) and are coaxially arranged with the mounting grooves (19), the upper ends of the guide pipes (7) are fixedly connected with the lower end of the lower partition plate (6), and the lower ends of the guide pipes are abutted against the upper end of an impactor mounting plate (9) positioned at the bottom of the inner cavity of the barrel-type shell (5);
the impactor mounting plate (9) is fixedly connected with the barrel type shell (5), and a plurality of through holes A are formed in the part corresponding to the impactors (8);
the impactors (8) are correspondingly inserted into the guide pipes (7), the upper ends of the impactors (8) are fixedly inserted into the mounting grooves (19), and the lower ends of the impactors (8) penetrate through the through holes A and are fixedly connected with the impacter mounting plates (9);
the locking mechanism is arranged below the impactor mounting plate (9) and consists of a plurality of outer ring locking devices (11) and a plurality of inner ring locking devices (12), the outer ring locking devices (11) are arranged corresponding to the impactors (8) on the edge of the barrel-type shell (5), and the inner ring locking devices (12) are arranged corresponding to the impactors (8) inside the barrel-type shell (5); the outer ring locking device (11) consists of two arc-shaped clamping plates (22) which are matched with each other; the two arc-shaped clamping plates (22) are enclosed outside the drill rod clamping sleeves on the corresponding impactors (8) and are fixedly connected with the lower ends of the impacter mounting plates (9) through bolts; the inner ring locking device (12) consists of two semicircular clamping plates (21) which are oppositely arranged; the two semicircular clamping plates (21) are enclosed outside the drill rod clamping sleeves on the corresponding impactors (8) and are fixedly connected with the lower ends of the impacter mounting plates (9) through bolts;
the down-the-hole hammer bottom plate (10) is horizontally arranged below the locking mechanism, a plurality of through holes B are formed in the part of the down-the-hole hammer bottom plate corresponding to the tail ends of the plurality of impactors (8), and the down-the-hole hammer bottom plate is sleeved on the outer sides of the tail ends of the plurality of impactors (8) through the plurality of through holes B; the down-the-hole hammer bottom plate (10) is fixedly connected with the impactor mounting plate (9) through bolts;
the slag discharge pipes (13) are all arranged inside the barrel-type shell (5) and are evenly distributed among the impactors (8), and the lower ends of the slag discharge pipes (13) sequentially penetrate through the impactors mounting plate (9) and the down-the-hole hammer bottom plate (10) and are stopped at positions close to the tail ends of drill bits on the impactors mounting plate (9); the upper end of the slag discharge pipe (13) sequentially penetrates through the lower partition plate (6) and the upper partition plate (3) and is stopped at a position close to the upper partition plate (3).
2. A cluster reverse circulation down-the-hole hammer according to claim 1, further comprising a plurality of cones (14), the plurality of cones (14) being circumferentially uniformly mounted at the lower end of the barrel casing (5).
3. A cluster reverse circulation down-the-hole hammer according to claim 1 or 2, characterized in that the connecting sleeve (17) is fixedly connected with the upper partition plate (3) through a plurality of reinforcing rib plates (2) which are uniformly distributed in the circumferential direction.
4. A cluster reverse circulation down-the-hole hammer according to claim 3, characterized in that the upper left and right ends of the external hexagonal joint (1) are alternately provided with a pair of positioning grooves (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022202607.1U CN214062851U (en) | 2020-09-30 | 2020-09-30 | Bundling type reverse circulation down-the-hole hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022202607.1U CN214062851U (en) | 2020-09-30 | 2020-09-30 | Bundling type reverse circulation down-the-hole hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214062851U true CN214062851U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022202607.1U Active CN214062851U (en) | 2020-09-30 | 2020-09-30 | Bundling type reverse circulation down-the-hole hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214062851U (en) |
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2020
- 2020-09-30 CN CN202022202607.1U patent/CN214062851U/en active Active
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