CN218117695U - Roofbolter with drilling rod direction function - Google Patents
Roofbolter with drilling rod direction function Download PDFInfo
- Publication number
- CN218117695U CN218117695U CN202220813742.6U CN202220813742U CN218117695U CN 218117695 U CN218117695 U CN 218117695U CN 202220813742 U CN202220813742 U CN 202220813742U CN 218117695 U CN218117695 U CN 218117695U
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- drill rod
- swing arm
- clamping
- feeding
- rod
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- 238000005553 drilling Methods 0.000 title claims abstract description 31
- 230000008093 supporting effect Effects 0.000 claims abstract description 18
- 238000009434 installation Methods 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 13
- 239000000428 dust Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 7
- 239000003245 coal Substances 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The utility model relates to a roofbolter with drilling rod direction function. The crawler belt comprises a crawler belt, wherein a rotary structure is arranged on the crawler belt, and a rotary mounting frame is arranged on the rotary structure; a feeding mounting seat is arranged above the rotary mounting frame, and an angle adjusting device for adjusting the turning angle of the feeding mounting seat is arranged between the feeding mounting seat and the rotary mounting frame; a drill rod driving device and a drill rod clamping device are installed on the feeding installation seat, and a chuck device is rotatably connected to the drill rod driving device; a guide supporting device for guiding the drill rod is arranged between the drill rod driving device and the drill rod clamping device; the drill rod driving device is connected with the feeding mounting seat in a sliding mode, and the feeding device is used for driving the drill rod driving device to move towards/away from the guide supporting device. The utility model discloses make the drilling rod can be steady, reliable impel forward at the in-process that creeps into, guaranteed the quality of drilling when having improved roofbolter's work efficiency.
Description
Technical Field
The utility model belongs to the technical field of mining drilling machine equipment, especially, relate to a roofbolter with drilling rod direction function.
Background
In the excavation construction of coal mines, a mining anchor rod drilling machine is required to be adopted for drilling in an underground tunnel. The anchor rod drilling machine is a drilling tool in coal mine roadway anchor rod supporting engineering and is used for obtaining a drill hole of an anchor rod/an anchor cable through construction on an operation surface, then feeding the anchor rod into the drill hole and anchoring. The jumbolter has very important effect in improving the supporting effect of the coal mine tunnel, reducing the supporting cost, accelerating the tunnel forming speed and the like, and has very important effect in coal mine construction as practical mechanical equipment.
The mining jumbolter is generally composed of a bracket device, a driving device, a clamping device, a feeding device and the like, wherein the driving device drives a chuck device to rotate at a low speed and a high torque during operation, a drill rod loaded on the chuck device follows a chuck, and the feeding device is used for driving the drill rod to move in an axial direction in a feeding mode, so that a drilled hole of an anchor rod/an anchor cable is machined on a working surface.
However, most of the existing mining jumbolters are not provided with a guide support device, and when drilling operation is performed, the drill rod is long and needs to be pushed forwards while rotating, so that the drill rod can swing to a large extent around the rotation center of the driving device in the advancing process, accurate positioning drilling operation cannot be achieved, and therefore the structure of the mining jumbolter needs to be optimally designed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the technical problem that exists among the known art and provide a structural design is reasonable the roofbolter with drilling rod direction function, the utility model discloses can carry out the direction support to the drilling rod, and then realize accurate location drilling operation.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: an anchor rod drilling machine with a drill rod guiding function comprises a crawler belt, wherein a rotary structure is arranged on the crawler belt, and a rotary mounting frame is arranged on the rotary structure; a feeding mounting seat is arranged above the rotary mounting frame, and an angle adjusting device for adjusting the turning angle of the feeding mounting seat is arranged between the feeding mounting seat and the rotary mounting frame; a drill rod driving device and a drill rod clamping device which are oppositely arranged are arranged on the feeding mounting seat, and a chuck device for clamping a drill rod is rotatably connected to the drill rod driving device; a guide supporting device for guiding the drill rod is arranged between the drill rod driving device and the drill rod clamping device; the drill rod driving device is connected with the feeding mounting seat in a sliding mode, and the feeding device is used for driving the drill rod driving device to move towards/away from the guide supporting device.
The utility model has the advantages that: the utility model provides a roofbolter with drilling rod direction function, through setting up feeding device, drilling rod drive arrangement and chuck device drive the drilling rod when rotatory and impel towards drilling rod clamping device, the drilling rod of advancing through setting up the direction strutting arrangement pairing rotation is led and is supported, avoid the drilling rod to take place the swing at the in-process of advancing, make roofbolter's drilling rod can be steady at the in-process that creeps into, reliable advancing forward, the quality of drilling has been guaranteed when having improved roofbolter's work efficiency, the roofbolter that uses under the coal mine among the prior art has been solved because the drilling location difficulty that the amplitude of fluctuation of drilling rod is great when drilling, the inaccurate problem in location.
Preferably: the guide supporting device comprises a guide support connected with the feeding installation seat, a first lifting guide block capable of longitudinally moving is connected on the guide support in a sliding mode, and a middle lifting frame is connected to the middle of the top end of the first lifting guide block; a left swing arm and a right swing arm which are movably connected with the guide support are symmetrically arranged on two sides of the middle lifting frame, and guide wheels are rotatably connected to the upper end parts of the middle lifting frame, the left swing arm and the right swing arm; when the first lifting guide block moves upwards, the upper end parts of the left swing arm and the right swing arm are folded inwards, and when the first lifting guide block moves downwards, the upper end parts of the left swing arm and the right swing arm are opened outwards.
Preferably: the middle parts of the left swing arm and the right swing arm are hinged with the guide support through a pin shaft; two sets of centering guide grooves which are distributed in a splayed shape are formed in the first lifting guide block, and the lower end parts of the left swing arm and the right swing arm are respectively arranged in the two sets of centering guide grooves in a penetrating mode and are connected with the two sets of centering guide grooves in a sliding mode.
Preferably: install second lift guide block on first lift guide block, seted up on the inner wall of direction support with second lift guide block sliding connection and longitudinal extension's guide way.
Preferably: the lower end part of the first lifting guide block is connected with a movable mounting part, and the extending end of the guide oil cylinder is movably connected with the movable mounting part.
Preferably: the angle adjusting device comprises a turning mounting frame hinged with the rotary mounting frame, and a first adjusting oil cylinder is hinged between the rotary mounting frame and the turning mounting frame; the feeding device also comprises a connecting rod mechanism arranged between the overturning mounting frame and the feeding mounting seat, and a second adjusting oil cylinder is hinged between the connecting rod mechanism and the overturning mounting frame.
Preferably: the connecting rod mechanism comprises a seat mounting piece fixedly connected with the feeding mounting seat and an adjusting swing arm connected with the overturning mounting frame, and the seat mounting piece is hinged with the adjusting swing arm; the first connecting rod and the second connecting rod are hinged with each other at the ends; the outer end parts of the first connecting rod and the second connecting rod are respectively hinged with the seat mounting part and the adjusting swing arm.
Preferably: the drill rod driving device comprises an installation sliding seat in sliding connection with the feeding installation seat, a transmission gear assembly is arranged on the installation sliding seat, and the chuck device is connected with the transmission gear assembly; and the hydraulic motor is connected with the transmission gear assembly.
Preferably: the drill rod clamping device comprises a clamping mounting seat connected with the feeding mounting seat, two groups of first clamping oil cylinders which are oppositely arranged are fixedly connected to the clamping mounting seat, and a first clamping block is fixedly connected to the extending end of each first clamping oil cylinder; the clamping device is characterized by also comprising two groups of second clamping oil cylinders which are oppositely arranged and fixedly connected to the clamping mounting seat, wherein a second clamping block is fixedly connected to the extending end of each second clamping oil cylinder; the inner end of the first clamping block is in a V-shaped structure and is provided with a knurl, and the inner end of the second clamping block is in an arc structure.
Preferably: and a dust cover structure positioned on the outer side of the drill rod clamping device is arranged on the feeding mounting seat.
Drawings
Fig. 1 is a schematic front view of the present invention;
fig. 2 is a schematic side view of the guiding and supporting device of the present invention;
fig. 3 is a schematic view of the internal structure of the guiding and supporting device of the present invention;
fig. 4 is a schematic front view of the angle adjusting device of the present invention;
FIG. 5 is a schematic perspective view of the pipe clamping device of the present invention;
fig. 6 is a schematic cross-sectional view of the drill rod driving device of the present invention.
In the figure: 1. a crawler; 2. a revolving structure; 3. a rotating mounting frame; 4. an angle adjusting device; 4-1, overturning the mounting rack; 4-2, a first adjusting oil cylinder; 4-3, a second adjusting oil cylinder; 4-4, a seat mount; 4-5, a first connecting rod; 4-6, a second connecting rod; 4-7, adjusting the swing arm; 5. a feeding device; 6. a drill rod drive; 6-1, installing a sliding seat; 6-2, a hydraulic motor; 6-3, a transmission gear assembly; 7. a chuck device; 8. a feed mount; 9. a guide support device; 9-1, guiding an oil cylinder; 9-2, a guide support; 9-3, centering the guide groove; 9-4, a first lifting guide block; 9-5, a middle lifting frame; 9-6, a left swing arm; 9-7, a right swing arm; 9-8, a guide wheel; 9-9, a second lifting guide block; 9-10, a movable mounting member; 10. a drill rod clamping device; 10-1, a first clamping block; 10-2, a first clamping oil cylinder; 10-3, a second clamping block; 10-4, a second clamping oil cylinder; 10-5, clamping a mounting seat; 11. dust cover structure.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:
referring to fig. 1, the jumbolter with drill rod guiding function of the present invention includes a track 1, a rotation structure 2 is installed on the track 1, and the rotation structure 2 adopts a hydraulic rotation mechanism. A rotary mounting frame 3 is mounted on the rotary structure 2.
A feeding installation seat 8 is arranged above the rotary installation frame 3, and an angle adjusting device 4 for adjusting the turning angle of the feeding installation seat 8 is arranged between the feeding installation seat 8 and the rotary installation frame 3. With further reference to fig. 4, in the present embodiment, the angle adjusting device 4 includes a turning mounting frame 4-1 hinged to the turning mounting frame 3, and a first adjusting cylinder 4-2 is hinged between the turning mounting frame 3 and the turning mounting frame 4-1. The angle adjusting device 4 also comprises a connecting rod mechanism arranged between the overturning mounting frame 4-1 and the feeding mounting seat 8, and a second adjusting oil cylinder 4-3 is hinged between the connecting rod mechanism and the overturning mounting frame 4-1. The connecting rod mechanism comprises a seat mounting piece 4-4 fixedly connected with the feeding mounting seat 8 and an adjusting swing arm 4-7 fixedly connected with the overturning mounting frame 4-1, and the seat mounting piece 4-4 is hinged with the adjusting swing arm 4-7. The connecting rod mechanism also comprises a first connecting rod 4-5 and a second connecting rod 4-6, the ends of which are hinged with each other; the outer end parts of the first connecting rod 4-5 and the second connecting rod 4-6 are respectively hinged with the seat mounting part 4-4 and the adjusting swing arm 4-7. In addition, a fisheye connecting piece is connected to the end part of a piston rod of the second adjusting oil cylinder 4-3, and the fisheye connecting piece is movably connected with hinged ends of the first connecting rod 4-5 and the second connecting rod 4-6; in the embodiment, the first connecting rod 4-5 and the second connecting rod 4-6 are provided with two groups and are respectively positioned at two sides of the piston rod of the second adjusting oil cylinder 4-3.
As shown in fig. 1, a drill rod driving device 6 and a drill rod clamping device 10 are oppositely arranged on a feeding installation seat 8, and a chuck device 7 for clamping a drill rod is rotatably connected on the drill rod driving device 6. With further reference to fig. 6, in the present embodiment, the drill rod driving device 6 includes a mounting slide 6-1 slidably connected to the feeding mount 8, a transmission gear assembly 6-3 is disposed on the mounting slide 6-1, the chuck device 7 is connected to the transmission gear assembly 6-3, and the drill rod driving device 6 further includes a hydraulic motor 6-2 connected to the transmission gear assembly 6-3. In this embodiment, the transmission gear assembly 6-3 includes a gear housing fixedly connected to the mounting slide 6-1, a transversely disposed mounting sleeve rotatably connected to the gear housing through a rolling bearing, a chuck device 7 connected to an outer end of the mounting sleeve, a driven gear mounted on an outer peripheral wall of the mounting sleeve, and a driving gear connected to an output shaft of the hydraulic motor 6-2, the driving gear being engaged with the driven gear.
Referring further to fig. 5, in the present embodiment, the drill rod clamping device 10 includes a clamping mounting base 10-5 connected to the feeding mounting base 8, two sets of first clamping cylinders 10-2 oppositely disposed are fixedly connected to the clamping mounting base 10-5, and a first clamping block 10-1 is fixedly connected to an extending end of the first clamping cylinder 10-2; the clamping device also comprises two groups of second clamping oil cylinders 10-4 which are oppositely arranged and fixedly connected on the clamping mounting seat 10-5, and a second clamping block 10-3 is fixedly connected at the extending end of the second clamping oil cylinder 10-4; the inner end surface of the first clamping block 10-1 is in a V-shaped structure and is provided with knurls, and the inner end surface of the second clamping block 10-3 is in an arc-shaped structure.
As shown in fig. 1, a dust cover structure 11 located outside the rod clamping device 10 is attached to the feed attachment base 8, and a slag discharge port connected to a pipeline is opened in the dust cover structure 11.
As shown in fig. 1, in order to guide the rock bolt, the present embodiment further includes a guide support device 9 for guiding the drill rod between the drill rod driving device 6 and the drill rod clamping device 10.
With further reference to fig. 2 and 3, in the present embodiment, the guiding and supporting device 9 comprises a guiding support 9-2 connected with the feeding installation base 8, a first lifting guide block 9-4 capable of moving longitudinally is slidably connected on the guiding support 9-2, and a middle lifting frame 9-5 is connected to the middle of the top end of the first lifting guide block 9-4; the two sides of the middle lifting frame 9-5 are symmetrically provided with a left swing arm 9-6 and a right swing arm 9-7 which are movably connected with the guide support 9-2, and the middle parts of the left swing arm 9-6 and the right swing arm 9-7 are hinged with the guide support 9-2 through pin shafts. Two groups of centering guide grooves 9-3 distributed in a splayed shape are formed in the first lifting guide block 9-4, and the lower end parts of the left swing arm 9-6 and the right swing arm 9-7 are respectively arranged in the two groups of centering guide grooves 9-3 in a penetrating manner and are connected with the two groups of centering guide grooves in a sliding manner. In addition, a second lifting guide block 9-9 is arranged on the first lifting guide block 9-4, and a guide groove which is connected with the second lifting guide block 9-9 in a sliding manner and extends longitudinally is formed in the inner wall of the guide support 9-2.
The upper end parts of the middle lifting frame 9-5, the left swing arm 9-6 and the right swing arm 9-7 are respectively rotatably connected with a guide wheel 9-8, when the first lifting guide block 9-4 moves upwards, the upper end parts of the left swing arm 9-6 and the right swing arm 9-7 are folded inwards, when the first lifting guide block 9-4 moves downwards, the upper end parts of the left swing arm 9-6 and the right swing arm 9-7 are opened outwards, wherein the center of the folding of the upper end parts of the left swing arm 9-6 and the right swing arm 9-7 is coincided with the rotation center of the drill rod driving device 6; as shown in fig. 2 and 3, the guiding and supporting device 9 further includes a guiding cylinder 9-1 for driving the first lifting and guiding block 9-4 to move longitudinally, further, a movable mounting member 9-10 is connected to a lower end portion of the first lifting and guiding block 9-4, a T-shaped notch is formed in the movable mounting member 9-10, and a plate member is connected to an extending end of the guiding cylinder 9-1 and penetrates through the T-shaped notch to movably connect the extending end of the guiding cylinder 9-1 and the movable mounting member 9-10.
As shown in fig. 1, the rod driving device 6 is slidably connected to the feeding mount 8, and further includes a feeding device 5 for moving the rod driving device 6 toward/away from the guide support device 9. In this embodiment, the feeding device 5 is a sprocket transmission structure, and includes a driving sprocket and a driven sprocket rotatably connected to two ends of the feeding mounting seat 8, a chain is connected between the driving sprocket and the driven sprocket in a transmission manner, and the chain is connected to the mounting slide 6-1, and further includes a hydraulic motor for driving the driving sprocket to rotate.
The working process is as follows: a piston rod of a guide oil cylinder 9-1 in the guide supporting device 9 retracts, so that the three groups of guide wheels 9-8 are outwards expanded by taking the rotation center of the drill rod driving device 6 as the center; and (3) mounting the drill rod on the chuck device 7, enabling the end part of the drill rod to be positioned between the three groups of guide wheels 9-8, and then extending out a piston rod of the guide oil cylinder 9-1, so that the three groups of guide wheels 9-8 are folded inwards by taking the rotation center of the drill rod driving device 6 as the center until the guide wheels 9-8 are contacted with the outer peripheral wall of the drill rod. When the drill rod is drilled, the drill rod is driven by the drill rod driving device 6 and the feeding device 5 to advance while rotating, at the moment, the guide supporting device 9 can perform guide supporting action on the drill rod, in the advancing process, the end part of the drill rod is close to the drill rod clamping device 10, the drill rod clamping device 10 is in threaded connection with the end part of the last drill rod clamped on the drill rod clamping device 10, after the adjacent end parts of the two drill rods are screwed and fastened, the clamping device 10 is loosened, the drill rod is drilled, and therefore the drilling operation is sequentially repeated until the drilling operation is completed.
Claims (10)
1. The utility model provides a roofbolter with drilling rod direction function which characterized by: the crawler belt type crawler belt comprises a crawler belt (1), wherein a rotary structure (2) is arranged on the crawler belt (1), and a rotary mounting frame (3) is arranged on the rotary structure (2);
a feeding mounting seat (8) is arranged above the rotary mounting frame (3), and an angle adjusting device (4) for adjusting the turning angle of the feeding mounting seat (8) is arranged between the feeding mounting seat (8) and the rotary mounting frame (3);
a drill rod driving device (6) and a drill rod clamping device (10) which are oppositely arranged are arranged on the feeding mounting seat (8), and a chuck device (7) for clamping a drill rod is rotatably connected on the drill rod driving device (6); a guide supporting device (9) for guiding the drill rod is arranged between the drill rod driving device (6) and the drill rod clamping device (10); the drill rod driving device (6) is connected with the feeding mounting seat (8) in a sliding mode, and the feeding device (5) is used for driving the drill rod driving device (6) to move towards/away from the guide supporting device (9).
2. A roofbolter having rod guidance as recited in claim 1, wherein: the guide supporting device (9) comprises a guide support (9-2) connected with the feeding installation seat (8), a first lifting guide block (9-4) capable of moving longitudinally is connected on the guide support (9-2) in a sliding mode, and a middle lifting frame (9-5) is connected to the middle of the top end of the first lifting guide block (9-4); a left swing arm (9-6) and a right swing arm (9-7) which are movably connected with the guide support (9-2) are symmetrically arranged on two sides of the middle lifting frame (9-5), and guide wheels (9-8) are rotatably connected at the upper end parts of the middle lifting frame (9-5), the left swing arm (9-6) and the right swing arm (9-7); when the first lifting guide block (9-4) moves upwards, the upper end parts of the left swing arm (9-6) and the right swing arm (9-7) are folded inwards, and when the first lifting guide block (9-4) moves downwards, the upper end parts of the left swing arm (9-6) and the right swing arm (9-7) are opened outwards, and the lifting guide device further comprises a guide oil cylinder (9-1) for driving the first lifting guide block (9-4) to move longitudinally.
3. A roofbolter having rod guiding capability as defined in claim 2, wherein: the middle parts of the left swing arm (9-6) and the right swing arm (9-7) are hinged with the guide support (9-2) through a pin shaft; two groups of centering guide grooves (9-3) which are distributed in a splayed shape are formed in the first lifting guide block (9-4), and the lower end parts of the left swing arm (9-6) and the right swing arm (9-7) are respectively arranged in the two groups of centering guide grooves (9-3) in a penetrating mode and are connected with the two groups of centering guide grooves in a sliding mode.
4. A roofbolter having rod guidance as recited in claim 3, wherein: a second lifting guide block (9-9) is arranged on the first lifting guide block (9-4), and a guide groove which is connected with the second lifting guide block (9-9) in a sliding way and extends longitudinally is arranged on the inner wall of the guide support (9-2).
5. A roofbolter having rod guidance as recited in claim 3, wherein: the lower end part of the first lifting guide block (9-4) is connected with a movable mounting part (9-10), and the extending end of the guide oil cylinder (9-1) is movably connected with the movable mounting part (9-10).
6. A roofbolter having rod guidance as recited in claim 1, wherein: the angle adjusting device (4) comprises a turning mounting frame (4-1) hinged with the turning mounting frame (3), and a first adjusting oil cylinder (4-2) is hinged between the turning mounting frame (3) and the turning mounting frame (4-1); the device also comprises a connecting rod mechanism arranged between the overturning mounting frame (4-1) and the feeding mounting seat (8), and a second adjusting oil cylinder (4-3) is hinged between the connecting rod mechanism and the overturning mounting frame (4-1).
7. A roofbolter having rod guiding capability as defined in claim 6, wherein: the connecting rod mechanism comprises a seat mounting piece (4-4) fixedly connected with the feeding mounting seat (8) and also comprises an adjusting swing arm (4-7) connected with the overturning mounting frame (4-1), and the seat mounting piece (4-4) is hinged with the adjusting swing arm (4-7); the device also comprises a first connecting rod (4-5) and a second connecting rod (4-6) with the ends hinged with each other; the outer end parts of the first connecting rod (4-5) and the second connecting rod (4-6) are respectively hinged with the seat mounting part (4-4) and the adjusting swing arm (4-7).
8. A roofbolter having rod guidance as recited in claim 1, wherein: the drill rod driving device (6) comprises a mounting sliding seat (6-1) which is in sliding connection with the feeding mounting seat (8), a transmission gear assembly (6-3) is arranged on the mounting sliding seat (6-1), and the chuck device (7) is connected with the transmission gear assembly (6-3); and the hydraulic motor (6-2) is connected with the transmission gear assembly (6-3).
9. A roofbolter having rod guiding capability as defined in claim 1, wherein: the drill rod clamping device (10) comprises a clamping mounting seat (10-5) connected with a feeding mounting seat (8), two groups of first clamping oil cylinders (10-2) which are oppositely arranged are fixedly connected to the clamping mounting seat (10-5), and a first clamping block (10-1) is fixedly connected to the extending end of each first clamping oil cylinder (10-2); the clamping device also comprises two groups of second clamping oil cylinders (10-4) which are oppositely arranged and fixedly connected on the clamping mounting seat (10-5), and a second clamping block (10-3) is fixedly connected at the extending end of the second clamping oil cylinder (10-4); the inner end surface of the first clamping block (10-1) is in a V-shaped structure and is provided with knurls, and the inner end surface of the second clamping block (10-3) is in an arc-shaped structure.
10. A roofbolter having rod guiding capability as defined in claim 1, wherein: a dust cover structure (11) positioned at the outer side of the drill rod clamping device (10) is arranged on the feeding mounting seat (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220813742.6U CN218117695U (en) | 2022-04-01 | 2022-04-01 | Roofbolter with drilling rod direction function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220813742.6U CN218117695U (en) | 2022-04-01 | 2022-04-01 | Roofbolter with drilling rod direction function |
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| Publication Number | Publication Date |
|---|---|
| CN218117695U true CN218117695U (en) | 2022-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220813742.6U Active CN218117695U (en) | 2022-04-01 | 2022-04-01 | Roofbolter with drilling rod direction function |
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| Country | Link |
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| CN (1) | CN218117695U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241179A (en) * | 2023-05-10 | 2023-06-09 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Multi-angle drilling device for tunnel |
-
2022
- 2022-04-01 CN CN202220813742.6U patent/CN218117695U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116241179A (en) * | 2023-05-10 | 2023-06-09 | 山东省地质矿产勘查开发局八〇一水文地质工程地质大队(山东省地矿工程勘察院) | Multi-angle drilling device for tunnel |
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Effective date of registration: 20240612 Address after: 443000, Group 1, Sanligang Village, Yuyang Street, Dangyang City, Yichang City, Hubei Province Patentee after: Yichang Kuang'an Industry and Trade Co.,Ltd. Country or region after: China Address before: 300000 No.2 Quanjian Road, douzhangzhuang Town, Wuqing District, Tianjin Patentee before: TIANJIN TONGXIN COAL MINE MACHINERY MANUFACTURING Co.,Ltd. Country or region before: China |