CN113586067B - Anti-locked-rotor automatic drilling method and device thereof - Google Patents
Anti-locked-rotor automatic drilling method and device thereof Download PDFInfo
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- CN113586067B CN113586067B CN202111042263.5A CN202111042263A CN113586067B CN 113586067 B CN113586067 B CN 113586067B CN 202111042263 A CN202111042263 A CN 202111042263A CN 113586067 B CN113586067 B CN 113586067B
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- 238000005553 drilling Methods 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 claims abstract description 102
- 230000007246 mechanism Effects 0.000 claims abstract description 43
- 230000005611 electricity Effects 0.000 claims description 22
- 238000009434 installation Methods 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000009412 basement excavation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005422 blasting Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Abstract
The invention relates to the technical field of excavating machinery, in particular to an anti-blocking automatic drilling method and a device thereof, comprising the following steps: the device comprises a driving motor, a linkage gear box, a drilling barrel mechanism, a locked rotor detection sensing box, a guide frame and a feeding mechanism, wherein the driving motor is in power connection with the linkage gear box, a driving gear is arranged inside the linkage gear box, the drilling barrel mechanism and the locked rotor detection sensor are respectively arranged on two sides of the linkage gear box, a bearing gear is respectively arranged in the drilling barrel mechanism and the locked rotor detection sensing box, the bearing gear is meshed with the driving gear, the driving motor, the linkage gear box, the drilling barrel mechanism and the locked rotor detection sensing box are integrally arranged at one end of the feeding mechanism, and the feeding mechanism is sleeved on the guide frame and is electrically connected with the feeding motor arranged in the feeding mechanism. The invention has the beneficial effects that: the feeding motor can be fed back according to the running load condition of the rotating motor, and the problem that equipment is damaged due to the fact that the feeding motor continues to feed under the condition of locked rotation is avoided.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to an anti-locked-rotor automatic drilling method and a device thereof.
Background
The existing tunnel is mainly excavated by means of a drilling and blasting method, a shield method, a milling and digging method, a manual drilling machine drilling method and the like. For the excavation of some hard rock tunnels in cities, manual drilling is usually used for the excavation of the holes due to incapacity of blasting, however, in the excavation of underground tunnels in cities, the manual rotation handle is inconvenient to operate due to narrow operation space, and meanwhile, the drilling force is large during drilling, the labor intensity of manual force application is high, the force application is unstable, and the efficiency is low.
The automatic drilling machine can well solve the problems, but the existing automatic drilling machine can only perform automatic drilling operation, and once unexpected conditions occur, the automatic drilling machine is troublesome to operate when manual intervention is needed for drilling. Meanwhile, in the prior art, the condition of locked-rotor is difficult to judge when the drilling machine works, the condition cannot be fed back to the feeding motor according to the running load condition of the rotating motor, and the automatic drilling mode cannot be switched to manual drilling in time, so that the feeding motor continues to feed when locked-rotor occurs, and equipment is damaged.
In view of the above, it is needed to design an anti-locked-rotor automatic drilling method and device thereof, which solve the problem that the locked-rotor situation is difficult to judge when the drilling machine works, and can be fed back to the feeding motor according to the running load situation of the rotating motor, so that the problem that the feeding motor continues to feed under the locked-rotor situation to damage equipment is avoided.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide an anti-locked-rotor automatic drilling method and a device thereof, which solve the problem that a drilling machine is difficult to judge the locked-rotor condition during operation, and can feed back to a feeding motor according to the running load condition of a rotating motor, so that the problem that the feeding motor continues to feed under the locked-rotor condition to damage equipment is avoided.
In order to achieve the above object, the technical scheme of the present invention is as follows: an anti-rotation automatic drilling apparatus comprising: the device comprises a driving motor, a linkage gear box, a drilling barrel mechanism, a locked rotor detection sensing box, a guide frame and a feeding mechanism, wherein the driving motor is in power connection with the linkage gear box, a driving gear is arranged inside the linkage gear box, the drilling barrel mechanism and the locked rotor detection sensor are respectively arranged on two sides of a driving shaft in the linkage gear box, a bearing gear is respectively arranged in the drilling barrel mechanism and the locked rotor detection sensing box, the bearing gear is meshed with the driving gear, and the driving motor, the linkage gear box, the drilling barrel mechanism and the locked rotor detection sensing box are integrally arranged at one end of the feeding mechanism.
Further, the linkage gearbox includes: the driving shaft is fixedly arranged at the top and bottom centers of the linkage gear box, the driving shaft is fixedly connected with the inner ring of the driving bearing, the driving gear is fixedly arranged on the circumferential surface of the driving shaft, and the sensor mounting cavity and the main shaft mounting cavity are respectively arranged at two sides of the driving shaft.
Further, the drill barrel mechanism includes: the device comprises a main shaft, a main shaft bearing, a first driven gear and a drilling barrel, wherein the main shaft bearing is fixedly arranged at the top and the bottom of a main shaft installation cavity, the main shaft is fixedly connected with an inner ring of a driving bearing, the bottom of the main shaft penetrates through the main shaft bearing to be fixedly connected with the drilling barrel, and the first driven gear is fixedly arranged on the circumferential surface of the main shaft and meshed with the driving gear.
Further, the locked rotor detection sensor box includes: the device comprises a locked rotor detection sensor and a control box, wherein the locked rotor detection sensor and the control box are fixedly arranged in a sensor mounting cavity, and a contact switch is arranged on the locked rotor detection sensor and is electrically connected with the control box.
Further, the lock-up detection sensor includes: detect bearing frame, detect the bearing, detect the main shaft, the sliding ring, crank connecting rod and pendulum, detect bearing frame fixed mounting in the sensor installation cavity, detect the bearing setting in detecting the bearing frame, detect main shaft fixed mounting in detecting the inner circle of bearing and detect main shaft bottom and be provided with the second and hold the movable gear, the second holds movable gear and drive gear meshing, the sliding ring cup joints on detecting the main shaft, be provided with the spring between sliding ring and the detection bearing frame, the spring cup joints at detecting main shaft outer wall, crank connecting rod is triangle form rotation and installs at sliding ring and detection main shaft end, pendulum fixed mounting is at crank connecting rod end.
Further, the contact switch includes: the electric connecting contact is fixedly arranged at the bottom of the slip ring, and the contact electricity taking head is fixedly arranged on the top surface of the detection bearing seat and corresponds to the electric connecting contact along the vertical direction.
Further, the contact switch is electrically connected with the control box, and the control box is electrically connected with a feeding motor arranged in the feeding mechanism.
Further, an anti-lock automatic drilling method includes: the power output shaft of the driving motor outputs power to the driving main shaft of the linkage gear box, and the driving main shaft synchronously rotates with the power output shaft along with the driving of the driving motor;
the driving main shaft is fixedly provided with a driving gear, and a first bearing gear and a second bearing gear meshed with the driving gear are driven by the driving gear to synchronously rotate;
the main shaft is driven to rotate by the rotation of the first bearing gear, and the main shaft drives the drill cylinder to rotate; the rotation of the second bearing gear drives the detection main shaft to rotate;
the rotation of the detection main shaft drives the crank connecting rod and the pendulum bob to circumferentially rotate, and the rotation angular velocity of the crank connecting rod and the pendulum bob is in direct proportion to the angular velocity of the driving main shaft;
the crank connecting rod and the pendulum bob generate centrifugal force during the rotation process, the crank connecting rod drives the slip ring to approach the detection bearing seat along the driving main shaft in the vertical direction, and the electric connecting point is contacted with the contact electricity taking head to take electricity;
when the drilling cylinder is blocked, the rotating speeds of the main shaft and the driving main shaft are reduced, the rotating speeds of the crank connecting rod and the pendulum bob and the centrifugal force generated by the crank connecting rod and the pendulum bob are correspondingly reduced, the slip ring is driven by the spring to move away from the detection bearing seat along the detection main shaft, and the electric connection point is separated from the contact electricity taking head to cut off;
after the electric connection point is contacted with the contact electricity taking head to take electricity, the electric signal is uploaded to the control box, and the control box commands the feeding motor to stop working, so that the problem that the feeding motor continues to feed under the condition of locked rotation to damage equipment is avoided.
The beneficial effects are that:
compared with the traditional pressure sensor or the rotating speed sensor, the anti-locked-rotor automatic drilling method and device provided by the invention have the advantages that a complex detection system, a precise installation structure and a harsh use environment are needed, the investment cost is low, the structure is simple, the installation is simple, and the detection result is stable and reliable. The problem that the feeding motor continues to feed under the condition of locked rotation so as to damage equipment is solved, wherein the locked rotation condition is difficult to judge when the drilling machine works, and the feeding motor can be fed back according to the running load condition of the rotating motor.
Drawings
FIG. 1 is a cross-sectional view of an anti-lock automatic drilling method and apparatus according to the present invention;
FIG. 2 is a schematic diagram of a structure of a sensing box for detecting locked rotor of an automatic drilling method and apparatus for preventing locked rotor according to the present invention;
reference numerals: the device comprises a 1-driving motor, a 2-linkage gear box, a 3-drilling barrel mechanism, a 4-locked rotor detection sensing box, a 5-guide frame, a 6-feeding mechanism, a 11-power output shaft, a 21-driving main shaft, a 22-driving bearing, a 23-driving gear, a 24-sensor mounting cavity, a 25-main shaft mounting cavity, a 31-main shaft, a 32-main shaft bearing, a 33-first bearing gear, a 34-drilling barrel, a 41-locked rotor detection sensor, a 42-control box, a 43-contact switch, a 411-detection bearing seat, a 412-detection bearing, a 413-detection main shaft, a 414-sliding ring, a 415-crank connecting rod, a 416-pendulum, a 417-second bearing gear, a 418-spring, a 431-electric contact point and a 432-contact power taking head.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
As shown in the figure, the invention discloses an anti-rotation automatic drilling device, which comprises: the driving motor 1, the linkage gear box 2, the drilling barrel mechanism 3, the locked rotor detection sensing box 4, the guide frame 5 and the feeding mechanism 6, wherein the driving motor 1 is in power connection with the linkage gear box 2, the driving gear 23 is arranged inside the linkage gear box 2, the drilling barrel mechanism 3 and the locked rotor detection sensor 41 are respectively arranged on two sides of a driving shaft in the linkage gear box 2, the drilling barrel mechanism 3 and the locked rotor detection sensing box 4 are respectively provided with a bearing gear, the bearing gears are meshed with the driving gear 23, the driving motor 1, the whole formed by the linkage gear box 2, the drilling barrel mechanism 3 and the locked rotor detection sensing box 4 is arranged at one end of the feeding mechanism 6, the feeding mechanism 6 is sleeved on the guide frame 5, and the locked rotor detection sensing box 4 is electrically connected with the feeding motor arranged in the feeding mechanism 6.
In this embodiment, the linkage gear box 2 includes: the driving main shaft 21, the driving bearing 22, the driving gear 23, the sensor mounting cavity 24 and the main shaft mounting cavity 25, the driving bearing 22 is fixedly mounted at the top and bottom centers of the linkage gear box 2, the driving main shaft 21 is fixedly connected with the inner ring of the driving bearing 22, the driving gear 23 is fixedly mounted on the circumferential surface of the driving main shaft 21, and the sensor mounting cavity 24 and the main shaft mounting cavity 25 are respectively arranged at two sides of the driving main shaft 21.
In the present embodiment, the drill barrel mechanism 3 includes: the main shaft 31, the main shaft bearing 32, the first carrier gear 33 and the drill drum 34, the main shaft bearing 32 is fixedly arranged at the top and the bottom of the main shaft installation cavity 25, the main shaft 31 is fixedly connected with the inner ring of the driving bearing 22, the bottom of the main shaft 31 penetrates through the main shaft bearing 32 to be fixedly connected with the drill drum 34, and the first carrier gear 33 is fixedly arranged on the circumferential surface of the main shaft 31 and meshed with the driving gear 23.
In the present embodiment, the lock-up detection sensor box 4 includes: the anti-lock rotation device comprises a lock rotation detection sensor 41 and a control box 42, wherein the lock rotation detection sensor 41 and the control box 42 are fixedly arranged in a sensor installation cavity 24, a contact switch 43 is arranged on the lock rotation detection sensor 41, and the contact switch 43 is electrically connected with the control box 42.
In the present embodiment, the lock-up detection sensor 41 includes: the detection bearing seat 411, the detection bearing 412, the detection main shaft 413, the sliding ring 414, the crank connecting rod 415 and the pendulum 416, the detection bearing seat 411 is fixedly installed in the sensor installation cavity 24, the detection bearing 412 is arranged in the detection bearing seat 411, the detection main shaft 413 is fixedly installed in the inner ring of the detection bearing 412, the second bearing gear 417 is arranged at the bottom of the detection main shaft 413, the second bearing gear 417 is meshed with the driving gear 23, the sliding ring 414 is sleeved on the detection main shaft 413, a spring 418 is arranged between the sliding ring 414 and the detection bearing seat 411, the spring 418 is sleeved on the outer wall surface of the detection main shaft 413, the crank connecting rod 415 is installed at the tail end of the sliding ring 414 and the detection main shaft 413 in a triangular rotation mode, and the pendulum 416 is fixedly installed at the tail end of the crank connecting rod 415.
In the present embodiment, the contact switch 43 includes: the electric connection contact 431 and the contact electricity taking head 432, the electric connection contact 431 is fixedly arranged at the bottom of the slip ring 414, and the contact electricity taking head 432 is fixedly arranged on the top surface of the detection bearing seat 411 and corresponds to the electric connection contact 431 along the vertical direction.
In this embodiment, the contact switch 43 and the control box 42 are electrically connected, and the control box 42 is electrically connected to a feeding motor provided in the feeding mechanism 6.
In this embodiment, an anti-locked-rotor automatic drilling method includes: the power output shaft 11 of the driving motor 1 outputs power to the driving main shaft 21 of the linkage gear box 2, and the driving main shaft 21 synchronously rotates with the power output shaft 11 along with the driving of the driving motor 1;
the driving main shaft 21 is fixedly provided with a driving gear 23, and a first driven gear 33 and a second driven gear 417 which are meshed on the driving gear 23 are driven by the driving gear 23 to synchronously rotate;
the rotation of the first driven gear 33 drives the main shaft 31 to rotate, and the main shaft 31 drives the drill cylinder 34 to rotate; rotation of the second carrier gear 417 drives rotation of the detection spindle 413;
the rotation of the detection spindle 413 drives the crank link 415 and the pendulum 416 to rotate circumferentially, and the rotational angular velocity of the crank link 415 and the pendulum 416 is proportional to the angular velocity of the drive spindle 21;
during the rotation process, the crank connecting rod 415 and the pendulum 416 generate centrifugal force due to the pendulum 416, the crank connecting rod 415 drives the slip ring 414 to approach the detection bearing seat 411 along the driving main shaft 21 in the vertical direction, and the electric connecting point 431 is contacted with the contact electricity taking head 432 to take electricity;
when the drill drum 34 is locked, the rotation speed of the main shaft 31 and the driving main shaft 21 is reduced, the rotation speeds of the crank connecting rod 415 and the pendulum 416 and the centrifugal force generated by the crank connecting rod are correspondingly reduced, the slip ring 414 is driven by the spring 418 to move away from the detection bearing seat 411 along the detection main shaft 413, and the electric connection point 431 is separated from the contact electricity taking head 432 to cut off electricity.
Example 1
Firstly, the whole drilling machine device is divided into a drilling barrel 34 driving part and a feeding driving part, wherein the drilling barrel 34 driving part consists of a driving motor 1, a linkage gear box 2, a drilling barrel mechanism 3 and a locked rotor detection sensing box 4, and the feeding driving part consists of a guide frame 5 and a feeding mechanism 6. The feeding mechanism 6 and the drill cylinder 34 driving part are respectively and fixedly arranged on two side wall surfaces of the sliding sleeve and are oppositely arranged, the sliding sleeve is sleeved on the guide frame 5, and the power of the feeding mechanism 6 is used for driving the sliding sleeve to move up and down along the guide frame 5 in the vertical direction, so that the drill cylinder 34 driving part is driven to move and drill in the vertical direction.
The power of the feeding mechanism 6 is derived from a feeding motor, the sliding sleeve is driven by the power of the feeding motor to move up and down along the guide frame 5, and when the feeding motor stops working, the sliding sleeve is in a static state relative to the guide frame 5, and automatic drilling is changed into manual drilling at the moment.
The above is the principle of structural arrangement of the feed drive and the drill drum 34 drive and the feed principle.
In the driving part of the drill barrel 34, the driving power of the drill barrel 34 is derived from the driving motor 1, the power output shaft 11 of the driving motor 1 is fixedly connected with the driving main shaft 21 which is rotatably arranged in the linkage gear box 2, and when the driving motor 1 runs, the driving main shaft 21 synchronously rotates along with the power output shaft 11 of the driving motor 1. And a driving gear 23 is fixedly installed on the driving main shaft 21, and the driving gear 23 rotates synchronously with the driving main shaft 21 under the driving of the driving main shaft 21.
Since the sensor mounting cavity 24 and the spindle mounting cavity 25 are arranged in the linkage gear box 2, the spindle 31 is rotatably mounted in the spindle mounting cavity 25 and the spindle 31 and the spindle mounting cavity 25 are ensured to be relatively fixed by the spindle bearing 32. Because the surface of the main shaft 31 is fixedly provided with the first bearing gear 33, the first bearing gear 33 is meshed with the driving gear 23, the rotation of the driving gear 23 drives the first bearing gear 33 to synchronously rotate, and the first bearing gear 33 drives the main shaft 31 to synchronously rotate while rotating, so that the main shaft 31, the driving main shaft 21 and the power output shaft 11 of the driving motor 1 synchronously rotate. The spindle 31 is fixedly connected with the drill drum 34, the rotation of the spindle 31 drives the drill drum 34 to rotate, and the transmission arrangement structure ensures that the power of the driving motor 1 is transmitted to the drill drum 34, so that the drill drum 34 and the driving motor 1 synchronously rotate.
The above is a description of the power transmission principle of the drill drum 34.
The sensor installation cavity 24 and the main shaft installation cavity 25 which are arranged in the linkage gear box 2 are respectively arranged at two sides of the driving main shaft 21, the locked rotor detection sensor box 4 is fixedly arranged in the sensor installation cavity 24, and the locked rotor detection sensor 41 and the control box 42 are arranged in the locked rotor detection sensor box 4, so that the locked rotor detection sensor 41 is in transmission connection with the driving main shaft 21 to detect the rotating speed of the drill pipe 34.
Wherein, since the detection bearing seat 411 is disposed in the locked rotor detection sensor 41, the inner ring of the detection bearing 412 is fixedly connected with the detection spindle 413, the bottom of the detection spindle 413 is fixedly connected with the second driven gear 417, the second driven gear 417 is meshed with the driving gear 23 mounted on the driving spindle 21, the rotation of the driving gear 23 transmits power to the second driven gear 417, and the detection spindle 413 is driven by the rotation of the second driven gear 417 to perform synchronous rotation. And because the detection main shaft 413 is sleeved with the sliding ring 414, the sliding ring 414 can slide along the detection main shaft 413 in the vertical direction, and the sliding ring 414 is connected with the surface of the detection bearing seat 411 by utilizing the spring 418. During the high-speed rotation of the detecting spindle 413, the crank link 415 and the pendulum 416 are driven by the detecting spindle 413 to rotate synchronously with the detecting spindle 413. Due to the centrifugal force generated by the rotation of the pendulum 416, the crank link 415 pulls the slip ring 414 to move in the vertical direction relative to the detection main shaft 413 under the drive of the centrifugal force.
So far, under the normal working condition of the drilling machine, the automatic drilling work is realized by the description of the working principle.
Example 2
When the rotation blocking phenomenon occurs during the drilling process, the rotation speed of the main shaft 31 suddenly drops due to the rotation blocking of the drill drum 34, and the main shaft 31 and the driving main shaft 21 synchronously rotate, so that the rotation speed of the driving main shaft 21 also suddenly drops. Since the drive main shaft 21 is also in power connection with the lock rotation detection sensor 41, the rotation speed of the detection main shaft 413 in the lock rotation detection sensor 41 suddenly drops, and the rotation speed of the crank link 415 and the pendulum 416 is reduced. Because the centrifugal force drives the crank connecting rod 415 to pull the sliding ring 414 to be close to the surface of the detection bearing seat 411 under the normal working condition, the spring 418 is in a retracted state at the moment. When the rotation speed of the pendulum 416 is reduced, the centrifugal force is reduced, the component force of the centrifugal force in the vertical direction is reduced, the gravity of the pendulum 416 drives the slip ring 414 to move away from the surface of the detection bearing seat 411, the spring 418 stretches, and the pulling and lifting amount of the spring 418 and the pulling and lifting force generated by the spring are balanced with the gravity of the pendulum 416.
Because the contact electricity taking head 432 is fixedly arranged on the surface of the detection bearing seat 411, the electric connection point 431 is fixedly arranged at the bottom of the sliding ring 414, when the sliding ring 414 is close to the surface of the detection bearing seat 411, the contact electricity taking head 432 is in contact with the electric connection point 431 to take electricity, a loop is formed, an electric signal is uploaded to the control box 42, and after the control box 42 receives the electric signal, the control box 42 keeps the automatic feeding state of the feeding mechanism 6.
When the drill drum 34 is locked, the rotation speed of the main shaft 31 and the driving main shaft 21 is reduced, the rotation speeds of the crank connecting rod 415 and the pendulum 416 and the centrifugal force generated by the crank connecting rod are correspondingly reduced, the slip ring 414 is driven by the spring 418 to move away from the detection bearing seat 411 along the detection main shaft 413, and the electric connection point 431 is separated from the contact electricity taking head 432 to cut off electricity.
In the case of the locked rotor, the rotational speed of the pendulum 416 in the corresponding locked rotor detection sensor 41 is reduced due to the reduction in the rotational speed of the drill drum 34, and the reduced rotational speed threshold is adjusted by the weight of the pendulum 416 and the elastic modulus of the spring 418, so that the rotational speed threshold for suspending the feeding motor is determined.
Preferably, the ratio of the rotational angular velocity of the crank link 415 and the bob 416 to the angular velocity of the drive spindle 21 is set to 1:1, and the lock-up detection sensor is in the lock-up detection state when the mass of the bob 416 and the elastic modulus of the spring 418 are adjusted to a rotational speed of the drive spindle 21 reduced to 800 r/min.
Compared with the traditional pressure sensor or the rotating speed sensor, the anti-locked-rotor automatic drilling method and device provided by the invention have the advantages that the locked-rotor detection sensor 41 arranged by utilizing the centrifugal force action structure needs a complex detection system, a precise installation structure and a harsh use environment, the investment cost is low, the structure is simple, the installation is simple, and the detection result is stable and reliable. The problem that the feeding motor continues to feed under the condition of locked rotation so as to damage equipment is solved, wherein the locked rotation condition is difficult to judge when the drilling machine works, and the feeding motor can be fed back according to the running load condition of the rotating motor.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. 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.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (5)
1. An anti-rotation automatic drilling apparatus comprising: the automatic feeding device is characterized in that the driving motor (1) is in power connection with the linkage gearbox (2), the driving gear (23) is arranged inside the linkage gearbox (2), the drilling barrel mechanism (3) and the locked rotor detection sensor (41) are respectively arranged on two sides of a driving shaft in the linkage gearbox (2), the bearing gear is respectively arranged on the drilling barrel mechanism (3) and the locked rotor detection sensor box (4), the bearing gear is meshed with the driving gear (23), the driving motor (1), the linkage gearbox (2), the drilling barrel mechanism (3) and the locked rotor detection sensor box (4) are integrally arranged at one end of the feeding mechanism (6), the feeding mechanism (6) is sleeved on the guide frame (5), and the locked rotor detection sensor box (4) is electrically connected with the feeding motor arranged in the feeding mechanism (6), and the locked rotor detection sensor box (4) comprises: the anti-blocking device comprises a blocking detection sensor (41) and a control box (42), wherein the blocking detection sensor (41) and the control box (42) are fixedly installed in a sensor installation cavity (24), a contact switch (43) is arranged on the blocking detection sensor (41), the contact switch (43) is electrically connected with the control box (42), and the contact switch (43) comprises: the electric connection point (431) and contact electricity taking head (432), electric connection point (431) fixed mounting is in sliding ring (414) bottom, and contact electricity taking head (432) fixed mounting is at detection bearing frame (411) top surface and along vertical orientation with electric connection point (431) corresponding, and locked rotor detection sensor (41) include: detect bearing frame (411), detect bearing (412), detect main shaft (413), sliding ring (414), crank link (415) and pendulum (416), detect bearing frame (411) fixed mounting in sensor installation cavity (24), detect bearing (412) setting in detect bearing frame (411), detect main shaft (413) fixed mounting in the inner circle of detect bearing (412) and detect main shaft (413) bottom and be provided with second and bear movable gear (417), second bear movable gear (417) and drive gear (23) meshing, sliding ring (414) cup joint on detect main shaft (413), be provided with spring (418) between sliding ring (414) and detect bearing frame (411), spring (418) cup joint at detect main shaft (413) outer wall, crank link (415) are triangle form rotation and install at sliding ring (414) and detect main shaft (413) end, pendulum (416) fixed mounting is at crank link (415) end.
2. An anti-rotation automatic drilling device according to claim 1, characterized in that the linkage gearbox (2) comprises:
the device comprises a driving main shaft (21), a driving bearing (22), a driving gear (23), a sensor mounting cavity (24) and a main shaft mounting cavity (25), wherein the driving bearing (22) is fixedly arranged at the top and bottom center of a linkage gear box (2), the driving main shaft (21) is fixedly connected with the inner ring of the driving bearing (22), the driving gear (23) is fixedly arranged on the circumferential surface of the driving main shaft (21), and the sensor mounting cavity (24) and the main shaft mounting cavity (25) are respectively arranged at two sides of the driving main shaft (21).
3. An anti-rotation automatic drilling apparatus according to claim 2, characterized in that the drill barrel mechanism (3) comprises: the novel drilling machine comprises a main shaft (31), a main shaft bearing (32), a first driven gear (33) and a drilling barrel (34), wherein the main shaft bearing (32) is fixedly arranged at the top and the bottom of a main shaft installation cavity (25), the main shaft (31) is fixedly connected with an inner ring of a driving bearing (22), the bottom of the main shaft (31) penetrates through the main shaft bearing (32) to be fixedly connected with the drilling barrel (34), and the first driven gear (33) is fixedly arranged on the circumferential surface of the main shaft (31) and meshed with the driving gear (23).
4. An anti-rotation automatic drilling device according to claim 1, characterized in that the contact switch (43) is electrically connected with the control box (42), and the control box (42) is electrically connected with a feed motor arranged in the feed mechanism (6).
5. An anti-lock automatic drilling method according to claim 4, comprising:
a power output shaft (11) of the driving motor (1) outputs power to a driving main shaft (21) of the linkage gearbox (2), and the driving main shaft (21) synchronously rotates with the power output shaft (11) along with the driving of the driving motor (1);
a driving gear (23) is fixedly arranged on the driving main shaft (21), and a first bearing gear (33) and a second bearing gear (417) which are meshed on the driving gear (23) are driven by the driving gear (23) to synchronously rotate;
the rotation of the first bearing gear (33) drives the main shaft (31) to rotate, and the main shaft (31) drives the drill cylinder (34) to rotate; the rotation of the second driven gear (417) drives the detection main shaft (413) to rotate;
the rotation of the detection main shaft (413) drives the crank connecting rod (415) and the pendulum bob (416) to circumferentially rotate, and the rotation angular velocity of the crank connecting rod (415) and the pendulum bob (416) is in direct proportion to the angular velocity of the driving main shaft (21);
the crank connecting rod (415) and the pendulum bob (416) generate centrifugal force due to the pendulum bob (416) in the rotating process, the crank connecting rod (415) drives the slip ring (414) to approach the detection bearing seat (411) along the driving main shaft (21) in the vertical direction, and the contact points are electrically connected
(431) The contact power-taking head (432) is contacted with the power-taking device for power taking;
when the drilling barrel (34) is locked, the rotation speeds of the main shaft (31) and the driving main shaft (21) are reduced, the rotation speeds of the crank connecting rod (415) and the pendulum bob (416) and the centrifugal force generated by the crank connecting rod are correspondingly reduced, the slip ring (414) is driven by the spring (418) to be far away from the detection bearing seat (411) along the detection main shaft (413), and the electric connection point (431) is separated from the contact electricity taking head (432) to be disconnected;
the electric connection point (431) is contacted with the contact electricity taking head (432) to take electricity, a loop is formed, the electric signal is uploaded to the control box (42), and the control box (42) keeps the automatic feeding state of the feeding mechanism (6).
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| CN110219663A (en) * | 2019-06-26 | 2019-09-10 | 中国铁建重工集团股份有限公司 | Drill configuration and engineering truck |
| CN111550177A (en) * | 2020-05-27 | 2020-08-18 | 重庆华隧智能设备有限公司 | Manual-automatic's automatic drilling machine |
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| JP2015050739A (en) * | 2013-09-04 | 2015-03-16 | 東芝テック株式会社 | Monitor system, notification device, monitoring method |
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| JP2001123783A (en) * | 1999-10-29 | 2001-05-08 | Kano Boring:Kk | Rotary percussion drill |
| DE10134928A1 (en) * | 2001-03-30 | 2002-10-17 | Goelz Gmbh & Co | Rotary grip for a drill feed drive, especially a trepan drill, has a planetary gearing between the grip and the drive shaft giving two gear settings with a housing keyed against rotation |
| CN204613630U (en) * | 2015-05-05 | 2015-09-02 | 常州信息职业技术学院 | A kind of automatic control system of drilling machine |
| KR101634639B1 (en) * | 2016-04-07 | 2016-06-29 | 한솔주식회사 | Trenchless drilling device for soil pipe forming within the leading tube with a direction switching function |
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| CN113586067A (en) | 2021-11-02 |
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