CN102619465B - Method and device for braking revolution of upper car of rotary drilling rig - Google Patents
Method and device for braking revolution of upper car of rotary drilling rig Download PDFInfo
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- CN102619465B CN102619465B CN 201210090977 CN201210090977A CN102619465B CN 102619465 B CN102619465 B CN 102619465B CN 201210090977 CN201210090977 CN 201210090977 CN 201210090977 A CN201210090977 A CN 201210090977A CN 102619465 B CN102619465 B CN 102619465B
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Abstract
The invention discloses a method and a device for braking revolution of an upper car of a rotary drilling rig. The device comprises an upper car (3), a lower car (2), a rotary support (5), a rotary speed reducer (1) and a hydraulic brake (4), wherein at least one set of hydraulic brake is arranged on the upper car (3); a cylinder body of the hydraulic brake is arranged on the upper car (3); a gear shaft of the hydraulic brake is meshed with the rotary support (5) to drive; and a control oil route of the hydraulic brake and the control oil route of the rotary speed reducer (1) share one route of guide oil route to supply oil. The device is low in required cost and simple in use. The revolution braking ability of the drilling rig and the braking ability during drilling operation are effectively improved, and the damage to the rotary speed reducer is reduced to the greatest extent.
Description
Technical field
The present invention relates to a kind of braking method, particularly relate to a kind of rotary drilling rig upper-part rotation braking method, the invention still further relates to the device of realizing this braking method.
Background technology
The existing market rotary drilling rig adopts the telescopic drill rod operation substantially, and its boring procedure is to bore after full a pipeful of soil to carry to get on ground, turns round approximately 90 ° and unloads soil, and reversed turning is holed to the foramen primum position, then repeats above action.In this process, because reductor is braked suddenly, moment kinetic energy very large, the moment impact load that acts on speed reducer output shaft is very large, easily damages reductor.In addition in drilling process, due to drill bit, the locating hole position is inaccurate after encountering hard rock or unloading soil at every turn causes inclined to one side brill, and drill bit is subject to very large unbalance loading, produces powerful moment of torsion and passes to reductor, causes reductor to damage.Impulsive torque in revolution and operation process is to be born by speed reducer output shaft at present, so cause easy damage, the output shaft that increases the Separate Brake rear brake can be shared this moment of torsion, improves the reliability of equipment.
Summary of the invention
First technical problem to be solved by this invention is to provide the stopping power of a kind of effective increase rig rotary braking ability when creeping into operation, reduces to greatest extent the rotary drilling rig upper-part rotation braking method of the damage of rotary reducer.
Second technical problem to be solved by this invention is to provide a kind of device of realizing this braking method.
In order to solve above-mentioned first technical problem, rotary drilling rig upper-part rotation braking method provided by the invention, get on the bus and get off by the revolution support and connection, guarantee 360 ° of operations of rig energy, on rotary reducer is arranged on and gets on the bus, the output shaft of rotary reducer supports engaged transmission with revolution, at least one cover is installed on described getting on the bus and acts on the liquid braking device that described revolution is supported, and follows these steps to executable operations:
(1), the rotary drilling rig drilling process, oil circuit control is not to rotary reducer and liquid braking device effect, the output shaft of rotary reducer and the gear shaft of liquid braking device are static, pinning makes to get on the bus;
(2), when boring full native drilling bucket, carry when above to ground, open the upper-part rotation button, the oil circuit while, fuel feeding was to rotary reducer and liquid braking device, oil pressure promotes rotary reducer and liquid braking device motion, make it to gear shaft, not play braking action, the now motor of rotary reducer revolution, and then drive revolution to support and upper-part rotation, the tooth engagement revolution that during revolution, the gear shaft of liquid braking device and revolution are supported;
(3), when being turned back to while needing position, close the revolution button, the oil circuit control oil pressure cuts off, the motor of rotary reducer does not turn round, rotary reducer produces and brakes with liquid braking device simultaneously, and then the braking that makes to get on the bus;
(4), unsnatch soil after, operate drilling rod and get back to the foramen primum position, only need repeat top step 2, just the direction of rotation of CD-ROM drive motor is contrary.
Described rotary reducer and described liquid braking device share road guide's oil circuit fuel feeding by rig, guarantee that described rotary reducer and described liquid braking device open and close to carry out simultaneously.
Described liquid braking device is the normally closed type liquid braking device.
In order to solve above-mentioned second technical problem, device provided by the invention is realized the device of rotary drilling rig upper-part rotation braking method, comprise getting on the bus, get off, turning round and support and rotary reducer, at least one cover is installed on described getting on the bus and acts on the liquid braking device that described revolution is supported.
Described liquid braking device comprises cylinder body and gear shaft, and the cylinder body of described liquid braking device is arranged on described getting on the bus, and engaged transmission is supported in the gear shaft of described liquid braking device and described revolution.
The oil circuit control of described liquid braking device and the oil circuit control of described rotary reducer share road guide's oil circuit fuel feeding.
Described liquid braking device is the normally closed type liquid braking device.
Adopt rotary drilling rig upper-part rotation braking method and the device thereof of technique scheme; owing to having added one or more sets liquid braking devices on getting on the bus; can increase platform rotary braking ability and bear shock loading suffered in the machine drilling process; after the increase liquid braking device, the output shaft of liquid braking device can be shared this moment of torsion; the reliability of raising equipment; effectively the protection rotary reducer, solve the hypodynamic problem of rig Brake Energy.This liquid braking device is the normally closed type structure, and this liquid braking device is different from the structure of hydraulic motor decelerator brake portion, the not external motor of this brake, and axle does not rise and drives the revolution operation.The external oil circuit control of liquid braking device, control the open and close of the piston of liquid braking device, and this oil circuit and rotary reducer oil circuit are worked simultaneously, effectively protect this two elements.
In sum, cost required for the present invention is lower, uses simply, and the stopping power when effectively increasing rig rotary braking ability and creeping into operation, reduce the damage of rotary reducer to greatest extent.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 does not install this brake to revolve and dig the platform structure schematic diagram.
Fig. 3 is that the rotary drilling rig reductor that this brake is not installed is turned round schematic diagram.
Fig. 4 is that rotary drilling rig reductor and brake are turned round schematic diagram.
The specific embodiment
With the specific embodiment, the invention will be further described by reference to the accompanying drawings in front.
Referring to Fig. 1, get on the bus and 32 support 5 by revolution and be connected with getting off, guarantee 360 ° of operations of rig energy, rotary reducer 1 is arranged on gets on the bus on 3, the output shaft of rotary reducer 1 supports 5 engaged transmission with revolution, the cylinder body of normally closed type liquid braking device 4 is arranged on gets on the bus on 3, the gear shaft of normally closed type liquid braking device 4 supports 5 engaged transmission with revolution, rotary reducer 1 shares road guide's oil circuit fuel feeding with normally closed type liquid braking device 4 by rig, and assurance reductor and brake open and close and carry out simultaneously.
Normally closed type liquid braking device 4 meets the rig braking requirement in self-locking and open mode.
Referring to Fig. 1, get on the bus and 32 support 5 by revolution and be connected with getting off, guarantee 360 ° of operations of rig energy, rotary reducer 1 shares road guide's oil circuit fuel feeding with normally closed type liquid braking device 4 by rig, guarantee that rotary reducer 1 opens and closes and carries out simultaneously with normally closed type liquid braking device 4, follows these steps to executable operations:
1, rotary drilling rig drilling process, oil circuit control is not to rotary reducer 1 and 4 effects of normally closed type liquid braking device, and the gear shaft of the output shaft of rotary reducer 1 and normally closed type liquid braking device 4 is static, and 3 pinnings make to get on the bus;
2, when boring full native drilling bucket, carry when above to ground, open the upper-part rotation button, the oil circuit while, fuel feeding was to rotary reducer 1 and normally closed type liquid braking device 4, oil pressure promotes rotary reducer 1 and 4 motions of normally closed type liquid braking device, make it to gear shaft, not play braking action, the now motor of rotary reducer 1 revolution, so drive revolution support 5 with get on the bus 3 revolutions, turn round the gear shaft of Closed Hydraulic brake 4 often and support 5 tooth engagement revolution with revolution;
3, when being turned back to while needing position, close the revolution button, the oil circuit control oil pressure cuts off, and the motor of rotary reducer 1 does not turn round, and rotary reducer 1 produces braking with normally closed type liquid braking device 4 simultaneously, and then 3 brakings that make to get on the bus.
4, after unsnatching soil, operate drilling rod and get back to the foramen primum position, only need repeat top step 2, just the direction of rotation of CD-ROM drive motor is contrary.
This novel rotation arrestment mechanism advantage is described further.
With reference to Fig. 2, rig does not in the market have normally closed type liquid braking device 4, and braking is all controlled separately rotary reducer 1 by road guide's oil circuit and completed, with reference to Fig. 3, the impulsive torque M produced in rotary drilling rig work is born by rotary reducer 1 fully, and the damage of reductor 1 is very risky.
With reference to Fig. 4, the work of novel rotation arrestment mechanism, the impulsive torque M that rotary drilling rig produces is born by rotary reducer 1 and normally closed type liquid braking device 4, and the moment of torsion that rotary reducer 1 bears is less than M, and reductor 1 damages risk to be reduced greatly.
Claims (7)
1. a rotary drilling rig upper-part rotation braking method, get on the bus (3) support (5) with get off (2) by revolution and be connected, guarantee 360 ° of operations of rig energy, rotary reducer (1) is arranged on get on the bus (3), the output shaft of rotary reducer (1) supports (5) engaged transmission with revolution, it is characterized in that: at least one cover is installed on described getting on the bus (3) and acts on the liquid braking device that (5) are supported in described revolution, follow these steps to executable operations:
(1), the rotary drilling rig drilling process, oil circuit control is not to rotary reducer (1) and liquid braking device effect, the output shaft of rotary reducer (1) and the gear shaft of liquid braking device are static, (3) pinning makes to get on the bus;
(2), when boring full native drilling bucket, carry when above to ground, open the upper-part rotation button, the oil circuit while, fuel feeding was to rotary reducer (1) and liquid braking device, oil pressure promotes rotary reducer (1) and liquid braking device motion, make it to gear shaft, not play braking action, the now motor of rotary reducer (1) revolution, and then drive revolution support (5) and (3) revolution of getting on the bus, during revolution, the gear shaft of liquid braking device meshes revolution with the tooth of revolution support (5);
(3), when being turned back to while needing position, close the revolution button, the oil circuit control oil pressure cuts off, the motor of rotary reducer (1) does not turn round, rotary reducer (1) produces braking with liquid braking device simultaneously, and then (3) braking that makes to get on the bus;
(4), unsnatch soil after, operate drilling rod and get back to the foramen primum position, only need repeat top step 2, just the direction of rotation of CD-ROM drive motor is contrary.
2. rotary drilling rig upper-part rotation braking method according to claim 1, it is characterized in that: described rotary reducer (1) shares road guide's oil circuit fuel feeding with described liquid braking device by rig, guarantees that described rotary reducer (1) opens and closes and carries out simultaneously with described liquid braking device.
3. rotary drilling rig upper-part rotation braking method according to claim 1 and 2, it is characterized in that: described liquid braking device is normally closed type liquid braking device (4).
4. realize the device of rotary drilling rig upper-part rotation braking method claimed in claim 1, comprise get on the bus (3), get off (2), revolution support (5), rotary reducer (1) and liquid braking device, it is characterized in that: at least one cover is installed on described getting on the bus (3) and acts on the liquid braking device that (5) are supported in described revolution.
5. the device of realizing rotary drilling rig upper-part rotation braking method according to claim 4, it is characterized in that: described liquid braking device comprises cylinder body and gear shaft, it is upper that the cylinder body of described liquid braking device is arranged on described getting on the bus (3), and (5) engaged transmission is supported in the gear shaft of described liquid braking device and described revolution.
6. according to the described device of realizing rotary drilling rig upper-part rotation braking method of claim 4 or 5, it is characterized in that: the oil circuit control of the oil circuit control of described liquid braking device and described rotary reducer (1) shares road guide's oil circuit fuel feeding.
7. according to the described device of realizing rotary drilling rig upper-part rotation braking method of claim 4 or 5, it is characterized in that: described liquid braking device is normally closed type liquid braking device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210090977 CN102619465B (en) | 2012-03-30 | 2012-03-30 | Method and device for braking revolution of upper car of rotary drilling rig |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210090977 CN102619465B (en) | 2012-03-30 | 2012-03-30 | Method and device for braking revolution of upper car of rotary drilling rig |
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| CN102619465A CN102619465A (en) | 2012-08-01 |
| CN102619465B true CN102619465B (en) | 2013-12-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905397A (en) * | 2019-12-02 | 2020-03-24 | 北京三一智造科技有限公司 | Rotary hole aligning method and rotary hole aligning mechanism |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108487855A (en) * | 2018-05-31 | 2018-09-04 | 北京中车重工机械有限公司 | Rotary drilling rig and its rotary system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110905397A (en) * | 2019-12-02 | 2020-03-24 | 北京三一智造科技有限公司 | Rotary hole aligning method and rotary hole aligning mechanism |
| CN110905397B (en) * | 2019-12-02 | 2021-04-27 | 北京三一智造科技有限公司 | Rotary hole aligning method and rotary hole aligning mechanism |
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| CN102619465A (en) | 2012-08-01 |
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