CN216477158U - Drilling machine for drilling holes in steep coal seam along coal seam - Google Patents
Drilling machine for drilling holes in steep coal seam along coal seam Download PDFInfo
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- CN216477158U CN216477158U CN202220009679.0U CN202220009679U CN216477158U CN 216477158 U CN216477158 U CN 216477158U CN 202220009679 U CN202220009679 U CN 202220009679U CN 216477158 U CN216477158 U CN 216477158U
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Abstract
The utility model relates to a drilling machine for drilling a steep coal seam along the coal seam, which belongs to the technical field of drilling equipment; the technical scheme is as follows: the chassis is used for stabilizing and supporting the rack; the bracket is used for bearing the movement mechanism; the sliding base can reciprocate along the drilling direction to provide feeding force and pulling force for the drilling tool; the outer drilling power head drives the outer drill rod to rotate; the inner drilling power head drives the inner drill rod to rotate and also comprises an inner drilling oil cylinder which pushes the inner drilling power head to reciprocate along the drilling direction; the inner drill rod rotates in the cavity of the outer drill rod, and the tail ends of the inner drill rod and the outer drill rod are provided with drill bits; the clamping mechanism is fixed on the bracket and clamps two sides of the inner drill rod and the outer drill rod; the method solves the technical problems of large deflection rate, small aperture, low pore-forming rate and the like existing in the prior art of drilling along the coal seam in the steeply inclined coal seam, and can drill large-aperture inclined holes in the steeply inclined coal seam.
Description
Technical Field
The utility model belongs to the technical field of drilling equipment, concretely relates to a rig that is used for steeply inclined coal seam in same direction as coal seam drilling.
Background
In the development of coal resources, the mining of a steep coal seam is a difficult problem in the mining technology, and particularly, the difficulty of drilling in the construction of the steep coal seam is great, so that the coal mining efficiency and safety are seriously influenced, and the coal mine capacity is restricted. At present, drilling in the steep coal seam along the coal seam construction is generally limited by the functions and the performances of drilling equipment, and the technical problems of large deflection rate, small aperture, low pore-forming rate and the like exist, so that the drilling construction link has large engineering quantity, long period and high comprehensive cost. Aiming at the inclined holes of the coal seam along the direction of the steep inclined coal seam construction with the hole diameter of 200mm and the drilling distance of 100-150 m, no mature drilling equipment can complete the drilling required by the design.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes the defects of the prior art and provides a drilling machine for drilling a steep coal seam along the coal seam; the method solves the technical problems of large deflection rate, small aperture, low pore-forming rate and the like existing in the prior art of drilling along the coal seam in the steep coal seam.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
The utility model provides a rig that is used for steeply inclined coal seam to follow coal seam drilling, includes chassis, bracket, outer drilling unit head, outer drilling rod, interior drilling unit head, interior drilling rod, interior drilling unit head base, sliding base, drill bit, the bracket sets up in the up end of chassis, and the bracket is articulated through the up end rear end of support cylinder with the chassis, and the lower terminal surface of bracket is articulated mutually with the up end front edge of chassis, and sliding base sliding connection is on the slide rail of bracket up end, and outer drilling unit head fixes on sliding base up end, and interior drilling unit head base sliding connection is in the rear end of sliding base up end and being located outer drilling unit head, and interior drilling unit head is fixed on interior drilling unit head base, and the output shaft and the outer drilling rod looks threaded connection of outer drilling unit head, the output shaft and the interior drilling rod looks threaded connection of interior drilling unit head, and interior drilling rod all are connected with the drill bit.
Further, the chassis is a welding part of a cuboid structure, the upper end of the chassis is provided with four stand oil cylinders, the stand oil cylinders are uniformly distributed at four corners of the upper end face of the chassis respectively, the stand oil cylinders are vertically arranged, one end of a cylinder base of each stand oil cylinder is fixed on the upper end face of the chassis, and a bottom foot is installed at the end of a push rod of each stand oil cylinder.
Further, the bracket is of a cuboid structure and is arranged in the middle of the chassis along the width direction of the chassis, the length direction of the bracket is consistent with that of the chassis, and the middle parts of the side plates on the two sides of the bracket are hinged to the end of a push rod of the supporting oil cylinder.
Furthermore, slide rails are arranged on two sides of the upper end surface of the bracket along the width direction of the upper end surface of the bracket, the length direction of the slide rails is consistent with that of the bracket, and the length of the slide rails is equal to that of the bracket.
Furthermore, the sliding base comprises a panel and a base oil cylinder, sliding chutes are formed in two sides of the lower end face of the panel along the length direction of the panel, the panel is connected with the sliding rails in a sliding mode through the sliding chutes, a cylinder body of the base oil cylinder is fixed on the lower end face of the panel, and the length direction of the base oil cylinder is consistent with that of the bracket; the cylinder body of the base oil cylinder is fixedly connected with the lower end face of the panel, and the end head of a push rod of the base oil cylinder is connected with the front end of the bracket.
Furthermore, the base of the internal drilling power head comprises an internal drilling oil cylinder, a sliding sleeve, two sliding rods and a mounting plate, the sliding sleeve is of a square plate-shaped structure, two ends of the sliding sleeve are respectively and symmetrically provided with two sliding holes, the extending direction of the sliding holes is consistent with the sliding direction of the sliding base and penetrates through the front end face and the rear end face of the sliding sleeve, and the two sliding rods are respectively inserted into the two sliding holes of the sliding sleeve; the front end and the rear end of the sliding rod are respectively fixed on the upper end surface of the panel through a mounting plate; the cylinder body of the inner drilling oil cylinder is fixedly arranged on the lower end face of the sliding sleeve, the length direction of the inner drilling oil cylinder is consistent with the sliding direction of the sliding base, and the end of a push rod of the inner drilling oil cylinder is fixedly connected with the mounting plate at the rear end.
Furthermore, the drill bit comprises an outer drill bit and an inner drill bit, the outer drill bit is connected with the tail end of the outer drill rod, and the inner drill bit is connected with the tail end of the inner drill rod.
Furthermore, one end of a first drill rod of the outer drill rod is in threaded connection with an output shaft of the outer drill power head, one end of a last drill rod is in threaded connection with the drill bit, and middle drill rods of the outer drill rod are connected end to end section by section; one end of a first drill rod of the inner drill rod is in threaded connection with an output shaft of the inner drill power head, one end of a last drill rod is in threaded connection with the drill bit, and the middle drill rods of the inner drill rod are connected end to end section by section.
Further, still include fixture, fixture includes that the clamping base, outer drill point hold the hydro-cylinder and interior drill point hold the hydro-cylinder, the clamping base is fixed at the up end front end edge of bracket, and outer drilling rod and interior drilling rod pass the clamping base, and the both sides of clamping base are fixed respectively and are provided with the fixed plate, and the lower extreme and the bracket looks fixed connection of fixed plate.
Furthermore, the number of the outer drill clamping oil cylinders is two, the two outer drill clamping oil cylinders are symmetrically arranged on two sides of the outer drill rod respectively and are fixed on fixing plates on two sides of the clamping base, and one end of a push rod end of each outer drill clamping oil cylinder faces towards the outer drill rod; the number of the inner drill clamping oil cylinders is two, the two inner drill clamping oil cylinders are respectively and symmetrically arranged on two sides of the inner drill rod and are fixed on fixing plates on two sides of the clamping base, and one end of a push rod end head of each inner drill clamping oil cylinder faces towards the inner drill rod.
The utility model discloses produced beneficial effect for prior art does:
(1) the utility model discloses can be at 200mm of steeply inclined coal seam construction aperture, the inclined hole of drilling distance 100~150m, equip for the drilling of present similar function, its drilling aperture is big, and the slope rate can obviously improve with the efficiency of creeping into.
(2) The utility model discloses the outer drilling rod adopts the independent drive mode with interior drilling rod in china and abroad, and the synchronous drilling operates steadily, and drilling accuracy is high, can effective control hole collapse, and the pore-forming rate is high.
(3) The utility model discloses install stand hydro-cylinder and support cylinder on the well chassis, simple structure, reasonable, stability is good.
Drawings
The invention will be described in further detail with reference to the accompanying drawings:
fig. 1 is a plan view of the present invention as a whole;
fig. 2 is an overall elevation view of the present invention;
wherein, 1 is a chassis, 11 is a column oil cylinder, 12 is a footing, 13 is a support oil cylinder, 2 is a bracket, 3 is an outer drilling power head, 4 is an outer drilling rod, 5 is an inner drilling power head, 6 is an inner drilling rod, 7 is an inner drilling power head base, 71 is an inner drilling oil cylinder, 72 is a sliding sleeve, 73 is a sliding rod, 74 is a mounting plate, 8 is a sliding base, 81 is a panel, 82 is a base oil cylinder, 9 is a clamping mechanism, 91 is a clamping base, 92 is an outer drilling clamping oil cylinder, 93 is an inner drilling clamping oil cylinder, 10 is a drill bit, 101 is an outer drill bit, and 102 is an inner drill bit.
Detailed Description
In order to make the technical problem, technical scheme and beneficial effect that the utility model will solve more clearly understand, combine embodiment and attached drawing, it is right to go on further detailed description the utility model discloses. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solution of the present invention is described in detail below with reference to the embodiments and the drawings, but the scope of protection is not limited thereto.
As shown in fig. 1-2, the utility model provides a drilling machine for drilling along a coal seam of a steeply inclined coal seam, which comprises a chassis 1, a bracket 2, an outer drilling power head 3, an outer drilling rod 4, an inner drilling power head 5, an inner drilling rod 6, an inner drilling power head base 7, a sliding base 8, a clamping mechanism 9 and a drill bit 10;
the base plate 1 is a welding part with a cuboid structure, and the upper end of the base plate 1 is provided with a stand column oil cylinder 11, a bottom foot 12 and a support oil cylinder 13. The quantity of stand hydro-cylinders 11 is four, and the equipartition sets up in four corners of the up end of chassis 1 respectively, and stand hydro-cylinder 11 is vertical to be set up, and its cylinder base one end is all fixed on the up end of chassis 1, and a footing 12 is all installed to every stand hydro-cylinder 11 push rod end. Two sides of the upper end face of the chassis 1 are respectively symmetrically provided with a supporting oil cylinder 13, the supporting oil cylinders 13 are arranged along the length direction of the chassis 1, the tail end of each supporting oil cylinder 13 is hinged to the rear end of the chassis 1, and the end of a push rod of each supporting oil cylinder 13 is hinged to the lower end face of the bracket 2.
The bracket 2 is of a cuboid structure, is arranged at the upper end of the chassis 1 and is arranged at the middle position of the chassis 1 along the width direction of the chassis 1, and the length direction of the bracket 2 is consistent with that of the chassis 1. The front end of the bracket 2 exceeds the front end of the chassis 1, the lower end face of the bracket 2 is hinged with the front end edge of the upper end face of the chassis 1 through a hinged seat, and the middle parts of the side plates on two sides of the bracket 2 are hinged with the end head of a push rod of the supporting oil cylinder 13. The upper end face of the bracket 2 is provided with slide rails along two sides of the width direction of the upper end face, the length direction of the slide rails is consistent with that of the bracket 2, and the length of the slide rails is equal to that of the bracket 2.
The sliding base 8 is connected to the sliding rail on the upper end surface of the bracket 2 in a sliding manner. Slide base 8 includes panel 81 and base hydro-cylinder 82, and the lower terminal surface both sides of panel 81 are provided with the spout along its length direction, and panel 81 passes through spout and slide rail looks sliding connection, the lower terminal surface at panel 81 is fixed to base hydro-cylinder 82 cylinder body to the length direction of base hydro-cylinder 82 is unanimous with the length direction of bracket 2. The cylinder body of the base cylinder 82 is fixedly connected with the lower end face of the panel 81, the end of the push rod of the base cylinder 82 is connected with the front end of the bracket 2, and the sliding base 8 is driven to reciprocate along the drilling direction by the extension and contraction of the base cylinder 82.
The outer drilling power head 3 is fixed at the front end of the upper end face of the panel 81 of the sliding base 8, the output shaft of the outer drilling power head 3 is of a pipe type structure, the sliding direction of the output shaft is consistent with that of the sliding base 8, the output shaft is in threaded connection with the outer drill rod 4, and a slag discharge pipe is arranged at the tail end of the output shaft.
One end of a first drill rod of the outer drill rod 4 is in threaded connection with an output shaft of the outer drill power head 3, one end of a last drill rod is in threaded connection with the drill bit 10, and middle drill rods of the outer drill rod 4 are connected end to end section by section.
The inner drilling power head base 7 comprises an inner drilling oil cylinder 71, a sliding sleeve 72, a sliding rod 73 and a mounting plate 74. The sliding sleeve 72 is a square plate-shaped structure, is arranged at the upper end of the sliding base 8 and is located at the rear end of the outer drilling power head 3, two ends of the sliding sleeve 72 are respectively and symmetrically provided with two sliding holes, and the extending direction of the sliding holes is consistent with the sliding direction of the sliding base 8 and penetrates through the front end face and the rear end face of the sliding sleeve. The number of the sliding rods 73 is two, and the two sliding rods 73 are respectively inserted into the two sliding holes of the sliding sleeve 72, so that the sliding sleeve 72 and the sliding rods 73 can slide relatively; the front and rear ends of the slide bar 73 are fixed to the upper end surface of the panel 81 by a mounting plate 74, respectively. The cylinder body of the inner drilling oil cylinder 71 is fixedly arranged on the lower end face of the sliding sleeve 72, the length direction of the inner drilling oil cylinder 71 is consistent with the sliding direction of the sliding base 8, the end of a push rod of the inner drilling oil cylinder 71 is fixedly connected with the mounting plate 74 at the rear end, and the sliding sleeve 72 slides forwards and backwards through the expansion and contraction of the inner drilling oil cylinder 71.
The inner drilling power head 5 is fixed on the upper end face of the sliding sleeve 72, and the axis of an output shaft of the inner drilling power head 5 coincides with the axis of an output shaft of the outer drilling power head 3. The output shaft of the inner drill power head 5 is of a pipe type structure, the output shaft is in threaded connection with the inner drill rod 6, and the tail end of the output shaft is connected with a water supply pipe.
One end of the first drill rod of the inner drill rod 6 is in threaded connection with an output shaft of the inner drill power head 5, one end of the last drill rod is in threaded connection with the drill bit 10, and the middle drill rods of the inner drill rod 6 are connected end to end section by section.
The clamping mechanism 9 comprises a clamping base 91, an outer drill clamping oil cylinder 92 and an inner drill clamping oil cylinder 93. The clamping base 91 is fixed on the front end edge of the upper end face of the bracket 2, the outer drill rod 4 and the inner drill rod 6 penetrate through the clamping base 91, fixing plates are fixedly arranged on two sides of the clamping base 91 respectively, and the lower end of each fixing plate is fixed on the bracket 2. The number of the outer drill clamping cylinders 92 is two, the two outer drill clamping cylinders are respectively and symmetrically arranged on two sides of the outer drill rod 4 and fixed on fixing plates on two sides of the clamping base 91, and one end of a push rod end of each outer drill clamping cylinder 92 faces the outer drill rod 4. The number of the inner drill clamping cylinders 93 is two, the two inner drill clamping cylinders 93 are symmetrically arranged on two sides of the inner drill rod 6 respectively and are fixed on fixing plates on two sides of the clamping base 91, and one end of a push rod end of each inner drill clamping cylinder 93 faces the inner drill rod 6.
The drill bit 10 comprises an outer drill bit 101 and an inner drill bit 102, wherein the outer drill bit 101 is connected with the tail end of the outer drill rod 4, and the inner drill bit 102 is connected with the tail end of the inner drill rod 6.
The working process of the utility model is as follows.
The upper and lower tunnel is accomplished in advance in the construction in the steeply inclined coal seam, the utility model discloses during operation will earlier the utility model discloses transport drilling position, then stretch out stand hydro-cylinder 11, make footing 12 support the tunnel roof, adjust the advance azimuth of boring through support cylinder 13 to fix the rig in drilling position.
When the drilling machine drills, an output shaft of the outer drilling power head 3 is connected with one end of an outer drill rod 4, the drill rods in the middle of the outer drill rod 4 are connected end to end section by section, the tail end of the outer drill rod is connected with an outer drill bit 101, and the outer drilling power head 3 provides torque for the outer drill rod 4 and the outer drill bit 101; an output shaft of the inner drilling power head 5 is connected with one end of an inner drill rod 6, the middle drill rods of the inner drill rod 6 are connected end to end section by section, the tail end of the inner drill rod is connected with an inner drill bit 102, and the inner drilling power head 5 provides torque for the inner drill rod 6 and the inner drill bit 102; the output shaft of the outer drilling power head 3 and the outer drill rod 4 are hollow, the inner drill rod 6 penetrates through the hollow cavities of the outer drilling power head 3 and the outer drill rod 4 and rotates in the outer drill rod 4, a cavity is formed between the outer drill rod 4 and the inner drill rod 6, and drilling fluid is discharged from the cavity; the inner drill rod 6 is hollow, and the drilling fluid is conveyed to the cutting interface of the drill 10 through the hollow cavity, and forms a closed-loop system in the inner drill rod 6 and the outer drill rod 4.
The base oil cylinder 82 installed on the sliding base 8 provides propelling force and pulling force for the outer drilling power head 3, and the inner drilling oil cylinder 71 installed on the inner drilling power head base 7 provides propelling force and pulling force for the inner drilling power head 5.
The clamping mechanism 9 is fixed on the bracket 2 and respectively plays a clamping role on the outer drill rod 4 and the inner drill rod 6 through an outer drill clamping oil cylinder 92 and an inner drill clamping oil cylinder 93;
the utility model discloses continuous operation, drilling construction accomplish the back, withdraw from interior drilling rod 6 and outer drilling rod 4 respectively, accomplish a duty cycle, then withdraw support cylinder 13 and fall the flat rig, withdraw stand hydro-cylinder 11 again and remove the anchor, transport next drilling position and carry out next drilling construction work.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (10)
1. The utility model provides a rig that is used for steeply inclined coal seam to follow coal seam drilling which characterized in that: comprises a chassis (1), a bracket (2), an outer drilling power head (3), an outer drilling rod (4), an inner drilling power head (5), an inner drilling rod (6), an inner drilling power head base (7), a sliding base (8) and a drill bit (10), wherein the bracket (2) is arranged on the upper end surface of the chassis (1), the bracket (2) is hinged with the rear end of the upper end surface of the chassis (1) through a supporting oil cylinder (13), the lower end surface of the bracket (2) is hinged with the front edge of the upper end surface of the chassis (1), the sliding base (8) is connected on a sliding rail of the upper end surface of the bracket (2) in a sliding way, the outer drilling power head (3) is fixed on the upper end surface of the sliding base (8), the inner drilling base (7) is connected on the upper end surface of the sliding base (8) in a sliding way and is positioned at the rear end of the outer drilling power head (3), the inner drilling power head (5) is fixed on the inner drilling power head base (7), an output shaft of the outer drilling power head (3) is in threaded connection with the outer drill rod (4), an output shaft of the inner drilling power head (5) is in threaded connection with the inner drill rod (6), and the outer drill rod (4) and the inner drill rod (6) are both connected with the drill bit (10).
2. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: chassis (1) is the welding piece of cuboid structure, and chassis (1) upper end is provided with stand hydro-cylinder (11), and the quantity of stand hydro-cylinder (11) is four, and the equipartition sets up in four corners of the up end of chassis (1) respectively, and stand hydro-cylinder (11) is vertical to be set up, and its jar seat one end is all fixed on the up end of chassis (1), and a footing (12) are all installed to every stand hydro-cylinder (11) push rod end.
3. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: bracket (2) are the cuboid structure, set up in the middle part position of chassis (1) along the width direction of chassis (1), and the length direction of bracket (2) is unanimous with the length direction of chassis (1), and the both sides curb plate middle part of bracket (2) is articulated mutually with the push rod end of support cylinder (13).
4. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: the upper end face of the bracket (2) is provided with slide rails along the two sides of the width direction of the bracket, the length direction of the slide rails is consistent with the length direction of the bracket (2), and the length of the slide rails is equal to that of the bracket (2).
5. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 4, wherein: the sliding base (8) comprises a panel (81) and a base oil cylinder (82), sliding grooves are formed in two sides of the lower end face of the panel (81) along the length direction of the panel, the panel (81) is connected with the sliding rails in a sliding mode through the sliding grooves, a cylinder body of the base oil cylinder (82) is fixed to the lower end face of the panel (81), and the length direction of the base oil cylinder (82) is consistent with the length direction of the bracket (2); the cylinder body of the base oil cylinder (82) is fixedly connected with the lower end face of the panel (81), and the end head of a push rod of the base oil cylinder (82) is connected with the front end of the bracket (2).
6. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: the inner drilling power head base (7) comprises an inner drilling oil cylinder (71), a sliding sleeve (72), two sliding rods (73) and a mounting plate (74), the sliding sleeve (72) is of a square plate-shaped structure, two ends of the sliding sleeve (72) are respectively and symmetrically provided with two sliding holes, the extending direction of the sliding holes is consistent with the sliding direction of the sliding base (8) and penetrates through the front end face and the rear end face of the sliding sleeve, and the two sliding rods (73) are respectively inserted into the two sliding holes of the sliding sleeve (72); the front end and the rear end of the sliding rod (73) are respectively fixed on the upper end surface of the panel (81) through a mounting plate (74); the cylinder body of the inner drilling oil cylinder (71) is fixedly arranged on the lower end face of the sliding sleeve (72), the length direction of the inner drilling oil cylinder (71) is consistent with the sliding direction of the sliding base (8), and the end of a push rod of the inner drilling oil cylinder (71) is fixedly connected with a mounting plate (74) at the rear end.
7. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: the drill bit (10) comprises an outer drill bit (101) and an inner drill bit (102), the outer drill bit (101) is connected with the tail end of the outer drill rod (4), and the inner drill bit (102) is connected with the tail end of the inner drill rod (6).
8. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: one end of a first drill rod of the outer drill rod (4) is in threaded connection with an output shaft of the outer drill power head (3), one end of a last drill rod is in threaded connection with the drill bit (10), and middle drill rods of the outer drill rod (4) are connected end to end section by section; one end of the first drill rod of the inner drill rod (6) is in threaded connection with an output shaft of the inner drill power head (5), one end of the last drill rod is in threaded connection with the drill bit (10), and the middle drill rods of the inner drill rod (6) are connected end to end section by section.
9. The drilling machine for drilling the down-hole coal seam of the steeply inclined coal seam according to claim 1, wherein: the drilling and drilling device is characterized by further comprising a clamping mechanism (9), wherein the clamping mechanism (9) comprises a clamping base (91), an outer drilling clamping oil cylinder (92) and an inner drilling clamping oil cylinder (93), the clamping base (91) is fixed on the front end edge of the upper end face of the bracket (2), the outer drill rod (4) and the inner drill rod (6) penetrate through the clamping base (91), fixing plates are fixedly arranged on two sides of the clamping base (91) respectively, and the lower end of each fixing plate is fixedly connected with the bracket (2).
10. The drilling rig for drilling a down hole in a steeply dipping coal seam according to claim 9, wherein: the number of the outer drill clamping oil cylinders (92) is two, the two outer drill clamping oil cylinders are respectively and symmetrically arranged on two sides of the outer drill rod (4) and are fixed on fixing plates on two sides of the clamping base (91), and one end of a push rod end of each outer drill clamping oil cylinder (92) faces towards the outer drill rod (4); the number of the inner drill clamping oil cylinders (93) is two, the two inner drill clamping oil cylinders are symmetrically arranged on two sides of the inner drill rod (6) respectively and are fixed on fixing plates on two sides of the clamping base (91), and one end of a push rod end of each inner drill clamping oil cylinder (93) faces towards the inner drill rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220009679.0U CN216477158U (en) | 2022-01-05 | 2022-01-05 | Drilling machine for drilling holes in steep coal seam along coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220009679.0U CN216477158U (en) | 2022-01-05 | 2022-01-05 | Drilling machine for drilling holes in steep coal seam along coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216477158U true CN216477158U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220009679.0U Active CN216477158U (en) | 2022-01-05 | 2022-01-05 | Drilling machine for drilling holes in steep coal seam along coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216477158U (en) |
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2022
- 2022-01-05 CN CN202220009679.0U patent/CN216477158U/en active Active
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