CN214365853U - Double-motor-driven rotary drilling rig power head - Google Patents

Abstract

The utility model provides a two motor drive's dig rig unit head soon, it includes balladeur train device (1), speed reducer (4), reducing gear box (3), driving motor (8), its characterized in that: the driving motor (8) is composed of two permanent magnet synchronous motors, the two driving motors are respectively connected with the speed reducer (4) through a transition disc, output shafts of the two speed reducers are connected with two input shafts of the reduction gearbox (3) through splines, the two input shafts are meshed with the same outer gear ring through gears, the outer gear ring is fixed with the driving sleeve (13) through a connecting sleeve, the reduction gearbox (3) is fixedly connected with a left connecting plate and a right connecting plate (5) through bolts, the connecting plates are fixed on the sliding frame device (1) through hinge pins, and the sliding frame device is connected to the mast (10) through clamping claws; a plurality of driving key plates (12) are uniformly distributed on the inner wall of the driving sleeve (13), a buffer device (7) is arranged at the upper end of the driving sleeve (13), and the lower end of the driving sleeve is connected with the pressure plate device (2).

Description

Double-motor-driven rotary drilling rig power head

Technical Field

The utility model belongs to the technical field of electricelectric moves soon the rig, concretely relates to adopt PMSM to dig rig unit head soon as bi-motor drive of power supply.

Background

The existing rotary drilling rig in the market is mostly a fuel vehicle and a gasoline-electric hybrid vehicle, the rotary drilling rig is a comprehensive drilling rig, the rotary drilling rig is mainly suitable for construction operation of clay, sandy soil, silty soil and other patterns, the cast-in-place pile, a continuous wall and the like have wide application, wherein a power head of the rotary drilling rig is an important power output device and a positioning device, the power head driving device is a hydraulic motor matched with a speed reducer to perform action, and under the conditions of severe working conditions and overload, the power suspension vibration is large. The traditional vehicle type power head is driven by a hydraulic motor or a three-phase asynchronous motor, the transmission elements of the hydraulic motor are more, the transmission efficiency is reduced, the volume of the three-phase asynchronous motor is overlarge, and the arrangement space is limited. 1. The construction noise of the power head is too large, 2, the fuel engine has more transmission parts, so that the efficiency loss is large, the efficiency of transmitting the fuel to the power head through the hydraulic motor is 60 percent, and 3, the fuel loss is high, and the control has deviation.

Disclosure of Invention

The utility model aims at providing a dual motor drive dig rig unit head soon just to the weak point that exists among the above-mentioned prior art. The utility model discloses a PMSM drive unit head not only has small, arranges convenient, motor direct control, sensitivity, convenient advantage, still has and can improve and bear the ability of turning round transshipping, and its vibration is compared hydraulic motor and is obviously reduced, and increase of service life can also realize the energy recuperation of braking process.

The purpose of the utility model can be realized by the following technical measures:

the utility model discloses a double-motor driven rotary drilling rig power head, which comprises a sliding frame device, a speed reducer, a reduction box and a driving motor; the driving motor is composed of two permanent magnet synchronous motors, the two driving motors are respectively connected with the speed reducers through transition discs, output shafts of the two speed reducers are connected with two input shafts of the reduction gearbox through splines, the two input shafts are meshed with the same outer gear ring through gears, the outer gear ring is fixed with the driving sleeve through a connecting sleeve, the reduction gearbox is fixedly connected with a left connecting plate and a right connecting plate through bolts, the connecting plates are fixed on the sliding frame device through hinge pins, and the sliding frame device is connected to the mast through clamping claws; the inner wall of the driving sleeve is provided with a plurality of driving key plates in an evenly distributed mode, the upper end of the driving sleeve is provided with a buffer device, and the lower end of the driving sleeve is connected with a pressure plate device.

Furthermore, the buffer device comprises a support ring connected with the upper end of the driving sleeve, a plurality of spring guide rods which are sleeved with damping springs and arranged around the support ring, and a buffer pressure plate which is pressed above the damping springs and is combined with the upper ends of the spring guide rods through nuts. A protective frame is arranged between the left connecting plate and the right connecting plate through a fixed connecting piece.

The utility model provides an every driving motor can bear long 120s moment of torsion overload operating mode.

The pressure plate device comprises a bottom plate and a pressure plate connecting sleeve fixedly connected with the bottom plate.

The utility model discloses can be tremble and can realize energy recuperation in the operation braking process of colliding with.

The utility model has the advantages as follows:

the power head of the utility model adopts the permanent magnet synchronous motor to output power, when the complex working condition is met, the torque can output 1 time of the rated torque in a short time, thereby realizing large torque output, bearing high-strength impact, having small motor vibration and long service life, and adapting to various complex and severe working conditions; the driving motor outputs power, the motor controller can control and realize forward and reverse rotation, the soil-breaking action is realized, and energy recovery can be realized in the braking process in the shaking and breaking operation. The buffer device can effectively reduce the impact force generated during soil shaking action and shaking and colliding integrated operation, and can also bear the impact of falling of the drill rod to protect the driving motor, the speed reducer and the reduction gearbox. The pressure plate device can rotate to any position to push the automatic valve rod of the drill barrel away and cannot deform.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a view showing the connection between the driving sleeve and the key plate (top view).

Fig. 4 is a sectional view of fig. 3.

Fig. 5 is a front sectional view of fig. 1.

Number in the figure: the device comprises a sliding frame device 1, a pressure plate device 2, a reduction box 3, a speed reducer 4, a connecting plate 5, a damping spring 6, a buffer device 7, a permanent magnet synchronous motor 8, a protective frame 9, a mast 10, a damping device 11, a driving key plate 12, a driving sleeve 13, a pressure plate connecting sleeve 14 and a bottom plate 15.

Detailed Description

The invention will be further described with reference to the following examples (drawings):

as shown in fig. 1-5, the power head of the dual-motor driven rotary drilling rig of the utility model comprises a carriage device 1, a speed reducer 4, a reduction box 3 and a driving motor 8; the driving motor 8 is composed of two permanent magnet synchronous motors, the two driving motors are respectively connected with the speed reducers 4 through transition discs, output shafts of the two speed reducers are connected with two input shafts of the reduction gearbox 3 through splines, the two input shafts are meshed with the same outer gear ring through gears to transmit torque power of double motors to the gear ring, the outer gear ring and the driving sleeve 13 are fixed together to rotate through a connecting sleeve, the reduction gearbox 3 is fixedly connected with the left and right connecting plates 5 through bolts, the connecting plates are fixed on the sliding frame device 1 through hinge pins, and the sliding frame device is connected to the mast 10 through clamping claws; a plurality of driving key plates 12 for driving the drill rod to rotate for drilling operation are uniformly distributed on the inner wall of the driving sleeve 13, a buffer device 7 is arranged at the upper end of the driving sleeve 13, and the lower end of the driving sleeve 13 is connected with the pressure plate device 2.

Furthermore, the buffer device 7 comprises a support ring connected with the upper end of the driving sleeve 13, nine spring guide rods which are arranged around the support ring and are sleeved with damping springs 6, and a buffer pressure plate which is pressed above the damping springs and is combined with the upper ends of the spring guide rods through nuts. The buffer device can bear the impact of instantaneous falling of the drill rod, main components at the lower part of the power head are protected from the beginning, and when the impact force of the pressure plate exceeds the range of the shock absorption spring, the shock absorption spring 6 in the buffer device 7 can absorb impact energy to protect the spring from being over-pressurized.

The utility model discloses install protection frame 9 through fixed connector between the connecting plate 5 about, can prevent effectively that change the drilling rod in-process at every turn, the drilling rod swing is to unit head motor and machine controller's striking.

The utility model provides an every driving motor 8 can bear long 120s moment of torsion overload operating mode.

The platen assembly includes a base plate 15 and a platen adapter sleeve 14 (see fig. 5) fixedly attached thereto.

The utility model discloses when the device is in trembling the operation of colliding with, energy recuperation can be realized to the braking process.

The utility model discloses driving motor 8 among the power device has adopted PMSM, not only can reduce the frequency of the vibrations of unit head assembly, the noise that also can produce in the effectual reduction work progress, and two are no less than to PMSM's quantity, make the output power of power head more sufficient, can bear the moment of torsion overload operating mode, tremble and to collide with the operation in the braking process can realize energy recovery, reduce the energy consumption, raise the efficiency.

The utility model provides a key operation part uses the bi-motor to directly drive, can realize instantaneous moment of torsion doubling, super large torque output, realize abominable operating mode construction operation, can realize energy recuperation simultaneously at the lifting efficiency, daily use energy consumption is with low costs, every motor is furnished with machine controller control respectively, control accuracy is high, adopt the motor to directly drive the mode and reduce the transmission part, improve transmission efficiency, can realize just reversing, adopt transition dish to connect the motor and the biggest universalization of reduction gear realization motor and speed reducer, can effectively improve the efficiency of construction, save the cost, adapt to various complicated operating mode operations, and is more high-efficient, and is more energy-saving and more environment-friendly.

Claims (4)

1. The utility model provides a two motor drive's dig rig unit head soon, it includes balladeur train device (1), speed reducer (4), reducing gear box (3), driving motor (8), its characterized in that: the driving motor (8) is composed of two permanent magnet synchronous motors, the two driving motors are respectively connected with the speed reducer (4) through a transition disc, output shafts of the two speed reducers are connected with two input shafts of the reduction gearbox (3) through splines, the two input shafts are meshed with the same outer gear ring through gears, the outer gear ring is fixed with the driving sleeve (13) through a connecting sleeve, the reduction gearbox (3) is fixedly connected with a left connecting plate and a right connecting plate (5) through bolts, the connecting plates are fixed on the sliding frame device (1) through hinge pins, and the sliding frame device is connected to the mast (10) through clamping claws; a plurality of driving key plates (12) are uniformly distributed on the inner wall of the driving sleeve (13), a buffer device (7) is arranged at the upper end of the driving sleeve (13), and the lower end of the driving sleeve (13) is connected with the pressure plate device (2).

2. The dual-motor-driven rotary drilling rig power head according to claim 1, characterized in that: the buffer device (7) comprises a support ring connected with the upper end of the driving sleeve (13), a plurality of spring guide rods sleeved with damping springs (6) and arranged around the support ring, and a buffer pressing plate pressed above the damping springs and combined with the upper ends of the spring guide rods through nuts.

3. The dual-motor-driven rotary drilling rig power head according to claim 1, characterized in that: each driving motor (8) can bear the torque overload condition of 120s in time.

4. The dual-motor-driven rotary drilling rig power head according to claim 1, characterized in that: a protective frame (9) is arranged between the left and the right connecting plates (5) through a fixed connecting piece.

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