CN212249844U - Tunnel blind pipe reamer - Google Patents
Tunnel blind pipe reamer Download PDFInfo
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- CN212249844U CN212249844U CN202021988118.7U CN202021988118U CN212249844U CN 212249844 U CN212249844 U CN 212249844U CN 202021988118 U CN202021988118 U CN 202021988118U CN 212249844 U CN212249844 U CN 212249844U
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Abstract
The utility model belongs to the technical field of the reamer, a tunnel blind pipe reamer is disclosed. The main technical characteristics are as follows: the drilling machine comprises a rack, wherein a handrail and a motor are arranged at the upper part of the rack, rollers are arranged at the lower part of the rack, the rack is provided with a supporting device and a drilling device, the supporting device comprises a supporting screw rod, a supporting box, an upper supporting rod, a lower supporting rod, a guide rod, an upper left connecting rod, a lower left connecting rod, a left supporting frame with a left supporting foot, an upper right connecting rod, a lower right connecting rod, a right supporting frame with a right supporting foot, a first hand wheel, a first clamping head, an adjusting sleeve with a positioning guide frame, a second clamping head, a first isolating ring, a first gear and a first rack; the drilling device comprises a drilling shaft, a second hand wheel, a third chuck, a lifting plate arranged on the sliding rod, a drilling frame, a drill bit, a second gear, a third gear, a second rack, a third rack, a threaded sleeve, a fourth chuck and a second isolating ring, wherein the upper part of the drilling shaft is provided with a lifting thread matched with the threaded sleeve. The tunnel blind pipe reamer is simple, convenient and quick in reaming.
Description
Technical Field
The utility model belongs to the technical field of the reamer, especially, relate to a tunnel blind pipe reamer.
Background
Be provided with the cable pit in the tunnel engineering for lay the cable. In order to prevent water from accumulating in the cable trench, a water drainage groove is arranged beside the cable trench, the cable trench is communicated with the water drainage groove through a water drainage hole, and water in the cable trench flows into the water drainage groove through the water drainage hole and is discharged out of the tunnel. The service life is long, and debris jam easily appears in the outlet, influences the drainage. The narrow cable trench and the drainage trench enable sundries in the drainage hole not to be easily cleaned and difficult to dredge.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a use convenient tunnel blind pipe reamer.
In order to solve the technical problem, the utility model discloses a technical scheme does: the drilling machine comprises a rack, wherein the upper part of the rack is provided with a handrail and a motor, the lower part of the rack is provided with a roller, and the rack is provided with a supporting device and a drilling device;
the supporting device comprises a supporting box with a supporting lead screw, an upper supporting rod matched with the supporting lead screw is arranged on the supporting box, a lower supporting rod matched with the supporting lead screw is arranged below the supporting box, the thread of the supporting lead screw at the upper supporting rod is opposite to the thread of the supporting lead screw at the lower supporting rod, the supporting box is provided with a guide rod matched with the upper supporting rod and the lower supporting rod, the upper supporting rod is connected with a left support frame with a left support foot through a left upper connecting rod and the lower supporting rod through a left lower connecting rod, the upper supporting rod is connected with a right support frame with a right support foot through a right upper connecting rod and a lower supporting rod, and a first chuck sleeved with a first hand wheel is arranged at the top end of the supporting lead screw; an adjusting sleeve with a positioning guide frame is arranged at the upper part of the supporting screw rod, a second chuck which is the same as the first chuck is arranged at the top end of the adjusting sleeve, a first isolating ring is arranged between the first chuck and the second chuck, a first gear is arranged at the bottom of the adjusting sleeve, and a first rack is arranged at the position matched with the first gear;
the drilling device comprises a drilling shaft, a third chuck sleeved with a second hand wheel is arranged at the top end of the drilling shaft, the lower end of the drilling shaft is connected with a lifting plate arranged on a sliding rod, a drilling frame is arranged on the front side of the lifting plate and connected with a dovetail groove of the drilling frame, a drill bit connected with a motor is arranged on the drilling frame, a second gear is arranged on the drilling shaft above the lifting plate, a third gear is arranged on the drilling shaft below the lifting plate, and a second rack matched with the second gear and a third rack matched with the third gear are arranged on the drilling frame; the upper part of the drilling shaft is provided with a threaded sleeve, the top end of the threaded sleeve is provided with a fourth chuck which is the same as the third chuck, a second isolating ring is arranged between the third chuck and the fourth chuck, and the upper part of the drilling shaft is provided with a lifting thread matched with the threaded sleeve.
The additional technical characteristics are as follows: a limiting disc is arranged on one side of the roller wheel close to the rack;
the roller is movably connected with the frame, and a spring is arranged behind the roller;
the left arm brace and the right arm brace are arranged in pairs up and down;
the left arm brace and the right arm brace are provided with first extension bars, and the idler wheels are provided with second extension bars.
The utility model provides a when tunnel blind pipe reamer used, portable handrail placed the frame on the ditch groove that leaks, made the gyro wheel be located the wall on sluicing ditch groove both sides, strutting arrangement, creeps into the device and be located the ditch inslot that leaks. And (4) pushing the frame, wherein the roller moves on the walls on two sides of the drainage groove to reach the drainage hole needing hole expansion, and stopping pushing the frame.
The support device is operated first. The first hand wheel is arranged on the first chuck first, and the second chuck does not move when the first chuck moves due to the fact that the first isolating ring is arranged between the first chuck and the second chuck. The first hand wheel on the first chuck is rotated anticlockwise, the support lead screw rotates anticlockwise, the thread of the support lead screw at the upper support rod is opposite to the thread of the support lead screw at the lower support rod, the support lead screw drives the upper support rod to move downwards and drives the lower support rod to move upwards, the upper support rod pushes a left support frame with a left support foot leftwards through the upper left connecting rod and the lower support rod through the lower left connecting rod, the upper support rod pushes a right support frame with a right support foot rightwards through the upper right connecting rod and the lower support rod through the lower right connecting rod, and after the left support foot is in close contact with the left wall of the drainage groove and the right support foot is in close contact with the right wall of the drainage groove, the rotation of the first hand wheel on the first chuck is stopped. When the left side wall, the right side wall of the ditch groove that leaks have the gradient, take off the first isolating ring between first dop and second dop, set up first handwheel on the second dop, first dop does not move when the second dop moves. And the first hand wheel on the second chuck is rotated clockwise, the first hand wheel drives the adjusting sleeve and the first gear to rotate clockwise, the first gear moves rightwards along the first rack, the adjusting sleeve moves rightwards on the positioning guide frame, the adjusting sleeve drives the supporting lead screw to move rightwards, and the upper left connecting rod, the lower left connecting rod, the upper right connecting rod and the lower right connecting rod move relatively. And the first hand wheel on the second chuck is rotated anticlockwise, the first hand wheel drives the adjusting sleeve and the first gear to rotate anticlockwise, the first gear moves leftwards along the first rack, the adjusting sleeve moves leftwards on the positioning guide frame, the adjusting sleeve drives the supporting lead screw to move leftwards, and the upper left connecting rod, the lower left connecting rod, the upper right connecting rod and the lower right connecting rod move relatively. By rotating the first hand wheel on the second chuck, the left upper connecting rod, the left lower connecting rod, the right upper connecting rod and the right lower connecting rod move relatively, so that the left supporting leg is matched with the inclination of the left wall of the drainage groove, the right supporting leg is matched with the inclination of the right wall of the drainage groove, a foundation is provided for subsequent drilling, and the drill bit is coincided with the central line of the drainage hole.
Thereafter, the drilling device is operated. And taking down a second isolating ring between the third chuck and the fourth chuck, arranging a second hand wheel on the fourth chuck, and enabling the third chuck not to act when the fourth chuck acts. And a second hand wheel on the fourth chuck is rotated clockwise, the threaded sleeve drives the drilling shaft to ascend through the lifting threads, the drilling shaft drives the lifting plate to ascend along the sliding rod, and the lifting plate drives the drilling frame to ascend. And a second hand wheel on the fourth chuck is rotated anticlockwise, the threaded sleeve drives the drilling shaft to descend through the lifting threads, the drilling shaft drives the lifting plate to descend along the sliding rod, and the lifting plate drives the drilling frame to descend. The up-down position of the drill bit on the drilling frame is matched with the position of the water drainage hole by adjusting the lifting plate. Then, the second hand wheel is arranged on the third chuck, the second isolating ring is arranged between the third chuck and the fourth chuck, and the fourth chuck does not act when the third chuck acts. And starting the motor, wherein the motor drives the drill bit to rotate. The second hand wheel on the third chuck is rotated clockwise, the drilling shaft, the second gear and the third gear rotate clockwise, the second gear drives the drilling frame to advance on the lifting plate through the second rack and the third gear through the third rack, and the drill bit performs reaming operation on the water drain hole; and after the reaming operation of the drain hole is finished, the motor is turned off, the second hand wheel on the third chuck is rotated anticlockwise, the drilling shaft, the second gear and the third gear rotate anticlockwise, the second gear drives the drilling frame to retreat on the lifting plate through the second rack and the third gear through the third rack, and the drill bit stops rotating the second hand wheel anticlockwise after retreating from the drain hole and resetting. Because the lifting plate is connected with the dovetail groove of the drilling frame, the drilling frame can move forward and backward stably on the lifting plate.
After reaming is finished, a first hand wheel is arranged on a first chuck, a first isolating ring is placed between the first chuck and a second chuck, the first hand wheel on the first chuck is rotated clockwise, a supporting lead screw rotates clockwise, the thread of the supporting lead screw at the upper supporting rod is opposite to the thread of the supporting lead screw at the lower supporting rod, the supporting lead screw drives the upper supporting rod to move upwards and drives the lower supporting rod to move downwards, the upper supporting rod is pulled rightwards through an upper left connecting rod and the lower supporting rod is pulled through a lower left connecting rod to form a left support frame with a left supporting foot, the upper supporting rod is pulled leftwards through an upper right connecting rod and the lower supporting rod is pulled leftwards through a lower right connecting rod to form a right support frame with a right supporting foot, and after the left supporting foot is separated from and reset with the left wall of a drainage groove and the right supporting foot is separated and reset with the right wall of the drainage groove, the first. The rack is pushed, the rollers retreat from the walls at two sides of the water drainage groove, and the handrail is lifted after the rollers are in place, so that the rack is taken down and transported away from the water drainage groove.
The utility model provides a tunnel blind pipe reamer, reaming is simple and efficient. And one side of the roller, which is close to the rack, is provided with a limiting disc, so that the roller is ensured to be positioned on the walls at two sides of the drainage groove. The roller is movably connected with the frame, a spring is arranged behind the roller, when the roller is used, the roller compresses the spring and then enters the water drainage groove, and the spring pushes the roller outwards to enable the roller to be tightly attached to the inner wall of the water drainage groove. The left arm brace and the right arm brace are arranged in pairs up and down, and the supporting effect is good. Left kickstand, right kickstand are provided with first extension bar, and the gyro wheel is provided with the second extension bar, and in the sluicing ditch department of broad, lift left kickstand, right kickstand off earlier, then install first extension bar, install left kickstand, right kickstand on first extension bar again. Simultaneously, the roller is detached firstly, then the second extension bar is installed, and then the roller is installed on the second extension bar. Through setting up first extension bar, second extension bar, make the sluicing ditch groove of left spike, right spike, gyro wheel adaptation broad, ensure the normal use of reamer, first extension bar, second extension bar and each part adopt threaded connection.
Drawings
Fig. 1 is a schematic structural view of the tunnel blind pipe reamer of the present invention;
FIG. 2 is a schematic structural view of the support device;
FIG. 3 is a schematic diagram of a drilling apparatus;
FIG. 4 is a schematic diagram of a configuration of a drilling rig;
fig. 5 is a schematic structural diagram of the front face of the tunnel blind pipe reamer.
Detailed Description
The following describes the concrete structure of the tunnel blind pipe reamer in detail with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, the utility model discloses tunnel blind pipe reamer includes frame 1, and 1 upper portion of frame is provided with handrail 2 and motor 3, and 1 lower part of frame is provided with gyro wheel 4, and one side that gyro wheel 4 is close to frame 1 is provided with spacing dish 5, and frame 1 is provided with strutting arrangement 6, creeps into device 7.
As shown in fig. 2, the supporting device 6 includes a supporting box 602 with a supporting lead screw 601, an upper brace 603 matching with the supporting lead screw 601 is arranged on the supporting box 602, a lower brace 604 matching with the supporting lead screw 601 is arranged below the supporting box 602, the thread of the supporting lead screw 601 at the upper brace 603 is opposite to the thread of the supporting lead screw 601 at the lower brace 604, the supporting box 602 is provided with a guide rod 605 matching with the upper brace 603 and the lower brace 604, the upper brace 603 is connected with a left brace 609 with a left brace 608 through a left upper connecting rod 606 and a lower brace 604 through a left lower connecting rod 607, the upper brace 603 is connected with a right brace 613 with a right brace 612 through a right upper connecting rod 610 and a lower brace 604, the left brace 608 and the right brace 612 are arranged in pairs up and down, and a first chuck 615 provided with a first hand wheel 614 is sleeved on the top end of the supporting lead screw 601; an adjusting sleeve 617 with a positioning guide frame 616 is arranged at the upper part of the supporting screw 601, a second chuck 618 which is the same as the first chuck 615 is arranged at the top end of the adjusting sleeve 617, a first isolating ring 619 is arranged between the first chuck 615 and the second chuck 618, a first gear 620 is arranged at the bottom of the adjusting sleeve 617, and a first rack 621 is arranged at the position matched with the first gear 620.
As shown in fig. 3, the drilling device 7 includes a drilling shaft 701, a third chuck sleeved with a second hand wheel 702 is arranged at the top end of the drilling shaft 701, the lower end of the drilling shaft 701 is connected with a lifting plate 704 arranged on a sliding rod 703, a drilling frame 705 is arranged at the front side of the lifting plate 704, the lifting plate 704 is connected with the drilling frame 705 in a dovetail way, the drilling frame 705 is provided with a drill bit 706, a second gear 707 is arranged on the drilling shaft 701 above the lifting plate 704, a third gear 708 is arranged on the drilling shaft 701 below the lifting plate 704, the drilling frame 705 is provided with a second rack 709 matched with the second gear 707 and a third rack 710 matched with the third gear 708; the upper part of the drilling shaft 701 is provided with a threaded sleeve 711, the top end of the threaded sleeve 711 is provided with a fourth chuck 712 which is the same as the third chuck, a second isolating ring 713 is arranged between the third chuck and the fourth chuck 712, and the upper part of the drilling shaft 701 is provided with a lifting thread 714 which is matched with the threaded sleeve 711.
As shown in fig. 4, the drilling rig 705 is provided with a drill bit 706, a second rack 709, a third rack 710, and a dovetail groove 715.
As shown in fig. 5, a limiting plate 5 is arranged on one side of the roller 4 close to the rack 1, the roller 4 is movably connected with the rack 1, a spring 8 is arranged behind the roller 4, a left arm brace 608 and a right arm brace 612 are arranged in pairs up and down, a first extension bar 9 is arranged on the left arm brace 608 and the right arm brace 612, and a second extension bar 10 is arranged on the roller 4.
The utility model provides a when tunnel blind pipe reamer used, portable handrail 2 placed frame 1 on the ditch groove that leaks, made gyro wheel 4 be located the wall on sluicing ditch groove both sides, strutting arrangement 6, creeps into device 7 and is located the ditch inslot that leaks. The rack 1 is pushed, the roller 4 moves on the walls on two sides of the drainage groove to reach the drainage hole needing hole expansion, and the pushing of the rack 1 is stopped.
The support means 6 are operated first. The first hand wheel 614 is firstly arranged on the first chuck head 615, and the first spacer ring 619 is arranged between the first chuck head 615 and the second chuck head 618, so that the second chuck head 618 does not act when the first chuck head 615 acts. The first hand wheel 614 on the first clamping head 615 is rotated counterclockwise, the support lead screw 601 rotates counterclockwise, the thread of the support lead screw 601 at the position of the upper support rod 603 is opposite to the thread of the support lead screw 601 at the position of the lower support rod 604, the support lead screw 601 drives the upper support rod 603 to move downward and drives the lower support rod 604 to move upward, the upper support rod 603 pushes a left support 609 with a left support foot 608 leftward through a left upper connecting rod 606 and a lower support rod 604 through a left lower connecting rod 607, the upper support rod 603 pushes a right support 613 with a right support foot 612 rightward through a right upper connecting rod 610 and a lower support rod 604 through a right lower connecting rod 611, and after the left support foot 608 is in close contact with the left wall of the drainage groove and the right support foot 612 is in close contact with the right wall of the drainage groove, the rotation of the first hand wheel 614 on the first clamping head 615. When the left side wall and the right side wall of the water drainage groove have inclination, the first isolation ring 619 between the first clamping head 615 and the second clamping head 618 is taken down, the first handwheel 614 is arranged on the second clamping head 618, and the first clamping head 615 does not act when the second clamping head 618 acts. The first hand wheel 614 on the second chuck 618 is rotated clockwise, the first hand wheel 614 drives the adjusting sleeve 617 and the first gear 620 to rotate clockwise, the first gear 620 moves rightwards along the first rack 621, the adjusting sleeve 617 moves rightwards on the positioning guide frame 616, the adjusting sleeve 617 drives the supporting lead screw 601 to move rightwards, and the left upper connecting rod 606, the left lower connecting rod 607, the right upper connecting rod 610 and the right lower connecting rod 611 move relatively. The first hand wheel 614 on the second chuck 618 is rotated counterclockwise, the first hand wheel 614 drives the adjusting sleeve 617 and the first gear 620 to rotate counterclockwise, the first gear 620 moves leftwards along the first rack 621, the adjusting sleeve 617 moves leftwards on the positioning guide frame 616, the adjusting sleeve 617 drives the supporting lead screw 601 to move leftwards, and the left upper connecting rod 606, the left lower connecting rod 607, the right upper connecting rod 610 and the right lower connecting rod 611 move relatively. By rotating the first hand wheel 614 on the second chuck 618, the left upper connecting rod 606, the left lower connecting rod 607, the right upper connecting rod 610 and the right lower connecting rod 611 move relatively, so that the left supporting leg 608 is matched with the inclination of the left wall of the drainage groove, the right supporting leg 612 is matched with the inclination of the right wall of the drainage groove, a foundation is provided for subsequent drilling, and the drill 706 is overlapped with the central line of the drainage hole.
Thereafter, the drilling device 7 is operated. The second spacer 713 between the third chuck and the fourth chuck 712 is removed, and the second hand wheel 702 is set on the fourth chuck 712, and the third chuck does not operate when the fourth chuck 712 operates. The second hand wheel 702 on the fourth chuck 712 is rotated clockwise, the threaded sleeve 711 drives the drilling shaft 701 to ascend through the lifting threads 714, the drilling shaft 701 drives the lifting plate 704 to ascend along the sliding rod 703, and the lifting plate 704 drives the drilling frame 705 to ascend. The second hand wheel 702 on the fourth chuck 712 is rotated counterclockwise, the threaded sleeve 711 drives the drilling shaft 701 to descend through the lifting threads 714, the drilling shaft 701 drives the lifting plate 704 to descend along the sliding rod 703, and the lifting plate 704 drives the drilling frame 705 to descend. The up and down position of the drill bit 706 on the drilling rack 705 is matched with the position of the drain hole by adjusting the lifting plate 704. Then, the second hand wheel 702 is set on the third chuck, the second spacer 713 is set between the third chuck and the fourth chuck 712, and the fourth chuck 712 does not operate when the third chuck operates. The motor 3 is activated, and the motor 3 drives the drill bit 706 to rotate. The second hand wheel 702 on the third chuck is rotated clockwise, the drilling shaft 701, the second gear 707 and the third gear 708 rotate clockwise, the second gear 707 drives the drilling frame 705 to advance on the lifting plate 704 through the second rack 709 and the third gear 708 and the third rack 710, and the drill 706 performs reaming operation on the drain hole; after the reaming operation of the drain hole is finished, the motor 3 is turned off, the second hand wheel 702 on the third chuck is rotated anticlockwise, the drilling shaft 701, the second gear 707 and the third gear 708 rotate anticlockwise, the second gear 707 drives the drilling frame 705 to retreat on the lifting plate 704 through the second rack 709 and the third gear 708 and the third rack 710, and the second hand wheel 702 stops rotating anticlockwise after the drill 706 exits from the drain hole and resets. Because the elevator plate 704 is coupled to the drilling rig 705 dovetail 715, the drilling rig 705 moves forward and backward smoothly on the elevator plate 704.
After reaming, the first hand wheel 614 is arranged on the first chuck 615, the first spacer ring 619 is arranged between the first chuck 615 and the second chuck 618, the first hand wheel 614 on the first chuck 615 is rotated clockwise, the supporting lead screw 601 rotates clockwise, the thread of the supporting lead screw 601 at the upper supporting rod 603 is opposite to the thread of the supporting lead screw 601 at the lower supporting rod 604, the supporting lead screw 601 drives the upper supporting rod 603 to move upwards and drives the lower supporting rod 604 to move downwards, the left supporting frame 609 with the left supporting foot 608 is pulled rightwards by the upper supporting rod 603 through the left upper connecting rod 606 and the lower supporting rod 604 through the left lower connecting rod 607, the upper supporting rod 603 passes through the right upper connecting rod 610, the lower support rod 604 pulls the right support frame 613 with the right support foot 612 leftwards through the right lower connecting rod 610, and after the left support foot 608 is separated from the left wall of the drainage groove and reset, and the right support foot 612 is separated from the right wall of the drainage groove and reset, the first hand wheel 614 on the first clamping head 615 stops rotating. The frame 1 is pushed, the rollers 4 retreat from the walls at two sides of the drainage ditch, and the handrail 2 is lifted after the rollers are in place, so that the frame 1 is taken down and transported away from the drainage ditch.
The utility model provides a tunnel blind pipe reamer, reaming is simple and efficient. One side of the roller 4 close to the frame 1 is provided with a limiting disc 5 to ensure that the roller 4 is positioned on the walls at two sides of the drainage groove. The roller 4 is movably connected with the rack 1, the spring 8 is arranged behind the roller 4, when the water draining device is used, the roller 4 compresses the spring 8 and then enters the water draining groove, and the spring 8 pushes the roller 4 outwards to enable the roller 4 to be tightly attached to the inner wall of the water draining groove. The left arm brace 608 and the right arm brace 612 are arranged in pairs up and down, and the supporting effect is good. The left arm brace 608 and the right arm brace 612 are provided with first extension bars 9, the roller 4 is provided with second extension bars 10, the left arm brace 608 and the right arm brace 612 are firstly detached at the wider drainage groove, then the first extension bars 9 are installed, and then the left arm brace 608 and the right arm brace 612 are installed on the first extension bars 9. Simultaneously, the roller 4 is detached first, then the second extension bar 10 is installed, and then the roller 4 is installed on the second extension bar 10. Through setting up first extension bar 9, second extension bar 10, make left spike 608, right spike 612, the sluicing ditch groove of gyro wheel 4 adaptation broad, ensure reamer's normal use, first extension bar 9, second extension bar 10 adopt threaded connection with each part.
The utility model provides a tunnel blind pipe reamer is not only limited to above-mentioned embodiment, the all be in the utility model discloses any modification, equivalent replacement and improvement etc. of doing on the basis all should be contained within the protection scope of the utility model.
Claims (5)
1. Tunnel blind pipe reamer, including the frame, frame upper portion is provided with handrail and motor, and the frame lower part is provided with gyro wheel, its characterized in that: the frame is provided with a supporting device and a drilling device;
the supporting device comprises a supporting box with a supporting lead screw, an upper supporting rod matched with the supporting lead screw is arranged on the supporting box, a lower supporting rod matched with the supporting lead screw is arranged below the supporting box, the thread of the supporting lead screw at the upper supporting rod is opposite to the thread of the supporting lead screw at the lower supporting rod, the supporting box is provided with a guide rod matched with the upper supporting rod and the lower supporting rod, the upper supporting rod is connected with a left support frame with a left support foot through a left upper connecting rod and the lower supporting rod through a left lower connecting rod, the upper supporting rod is connected with a right support frame with a right support foot through a right upper connecting rod and a lower supporting rod, and a first chuck sleeved with a first hand wheel is arranged at the top end of the supporting lead screw; an adjusting sleeve with a positioning guide frame is arranged at the upper part of the supporting screw rod, a second chuck which is the same as the first chuck is arranged at the top end of the adjusting sleeve, a first isolating ring is arranged between the first chuck and the second chuck, a first gear is arranged at the bottom of the adjusting sleeve, and a first rack is arranged at the position matched with the first gear;
the drilling device comprises a drilling shaft, a third chuck sleeved with a second hand wheel is arranged at the top end of the drilling shaft, the lower end of the drilling shaft is connected with a lifting plate arranged on a sliding rod, a drilling frame is arranged on the front side of the lifting plate and connected with a dovetail groove of the drilling frame, a drill bit connected with a motor is arranged on the drilling frame, a second gear is arranged on the drilling shaft above the lifting plate, a third gear is arranged on the drilling shaft below the lifting plate, and a second rack matched with the second gear and a third rack matched with the third gear are arranged on the drilling frame; the upper part of the drilling shaft is provided with a threaded sleeve, the top end of the threaded sleeve is provided with a fourth chuck which is the same as the third chuck, a second isolating ring is arranged between the third chuck and the fourth chuck, and the upper part of the drilling shaft is provided with a lifting thread matched with the threaded sleeve.
2. The blind tunnel reamer of claim 1, wherein: and one side of the roller wheel, which is close to the rack, is provided with a limiting disc.
3. The blind tunnel reamer of claim 1 or 2, wherein: the roller is movably connected with the frame, and a spring is arranged behind the roller.
4. The blind tunnel reamer of claim 1, wherein: the left arm brace and the right arm brace are arranged in pairs up and down.
5. The blind tunnel reamer of claim 1, 2 or 4 wherein: the left arm brace and the right arm brace are provided with first extension bars, and the idler wheels are provided with second extension bars.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021988118.7U CN212249844U (en) | 2020-09-12 | 2020-09-12 | Tunnel blind pipe reamer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021988118.7U CN212249844U (en) | 2020-09-12 | 2020-09-12 | Tunnel blind pipe reamer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212249844U true CN212249844U (en) | 2020-12-29 |
Family
ID=73982714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021988118.7U Active CN212249844U (en) | 2020-09-12 | 2020-09-12 | Tunnel blind pipe reamer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212249844U (en) |
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2020
- 2020-09-12 CN CN202021988118.7U patent/CN212249844U/en active Active
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