CN213895023U

CN213895023U - Direct-drive double-power drilling winch

Info

Publication number: CN213895023U
Application number: CN202021957570.7U
Authority: CN
Inventors: 鞠家奎; 孟献; 李冬玲; 赵辉; 范悦栓; 黄海龙
Original assignee: RG Petro Machinery Group Co Ltd
Current assignee: RG Petro Machinery Group Co Ltd
Priority date: 2020-09-09
Filing date: 2020-09-09
Publication date: 2021-08-06
Anticipated expiration: 2030-09-09

Abstract

The invention discloses a direct-drive double-power well drilling winch, which relates to the technical field of petroleum drilling and production mechanical equipment and comprises a frame, a roller shaft assembly, a motor, a disc brake, an alternating-current variable-frequency control system and the like, wherein double powers of the motor and a chain are input into the single-shaft winch, the right end of the shaft is directly connected with an alternating-current variable-frequency motor rotor through a ball cage type coupling, the left end of the shaft is provided with a chain wheel driving device, a chain wheel and the shaft are connected through a clutch, two sets of powers run independently and are mutually standby, when the motor drives, a main brake is used for motor energy consumption braking, an auxiliary brake is used for disc braking, when the chain wheel drives, the disc brake is used for main braking, the disc brake is pneumatic type, a single-side air-cooling brake disc is configured, all the controls are integrated in a driller room, the invention realizes the double-power driving of the well drilling winch, adopts the direct-drive technology, the disc brake is pneumatic type, the whole size is small, the weight is light, the power loss is small, the transmission is simple, and the maintenance points are few.

Description

Direct-drive double-power drilling winch

Technical Field

The invention relates to the technical field of petroleum drilling and production mechanical equipment, in particular to a direct-drive double-power drilling winch.

Background

The power transmission system of the petroleum drilling winch determines the overall performance of a drilling machine, the technology is continuously improved, the winch is developed into an electric drive or an electromechanical composite drive from a traditional mechanical drive, only one set of drive power is provided, in the prior art, the electric drive is divided into a direct current drive and an alternating current variable frequency drive, the direct current drive is of a multi-shaft internal speed changing structure, the alternating current variable frequency drive is of a reduction gearbox drive single-shaft structure, part of the mechanical drive and the electric drive winch are provided with an independent emergency motor drive or a motor automatic bit feeding system, and under the special working condition, the equipment is required to be provided with a double-power system, and the drilling winch has the advantages of advancement, intellectualization, small size and light weight, can enter a running state in a short time when being moved, and is matched with an economic and applicable brake system.

Disclosure of Invention

In order to realize a double-power driving winch, the invention provides a direct-drive double-power drilling winch which comprises a frame, a roller shaft assembly, a motor, a disc brake and an alternating-current frequency conversion control system, wherein the direct-drive double-power drilling winch adopts double-power input of the motor and a chain wheel, two sets of power independently run, when the motor drives, the main brake is motor energy consumption brake, the disc brake is auxiliary brake, when the chain wheel drives, the disc brake is main brake, the direct-drive double-power drilling winch is a single shaft, a roller body is arranged at the middle section of the shaft, a brake disc is arranged on the left side plate of the roller body, flat-mouth-shaped bearing seats are arranged on two sides of the roller body, a clutch is arranged at the left end of the shaft, an outer gear ring of the clutch is arranged on the shaft, the movable disc is connected with an inner gear ring, the inner gear ring is connected with a connecting disc, the connecting disc is connected with a hub, and the chain wheel is connected with the shaft, two free bearings are arranged in a wheel hub, the right end of the shaft is connected with a flange which is connected with a coupler, the coupler is arranged in a motor through hole, the right side of a motor rotor is connected with a connecting flange which is connected with an end surface key, the connecting flange is connected with the coupler in a radial key mode, an encoder connector is connected with a coupler flange, the motor is an alternating current variable frequency motor, the disc brake is of a pneumatic type, a plurality of radiating fins are uniformly distributed on the circumference of the inner layer of a friction surface of a brake disc, a brake caliper is provided with a low-voltage type executing device, a shifting fork is arranged on the executing device, a variable frequency unit of an alternating current variable frequency control system adopts a full-digital vector control variable frequency speed device, an intelligent remote driller electric control console controls the VFD output frequency, a PLC and a PROFIBUS bus are adopted for carrying out data fast exchange between the systems, an energy consumption braking unit is composed of a chopper power braking unit and a braking resistor, under the braking working condition, automatically put into operation and generate energy consumption braking power.

Preferably, the motor center is a through hole.

Preferably, the joint is a sliding type DOX type constant velocity universal joint.

Preferably, the disc brake is of a pneumatic type, the brake disc is cast by bronze of metal precision die casting, a plurality of radiating fins are uniformly distributed on the circumference of the inner layer of the friction surface, the brake caliper actuator is of a low-pressure type, the actuating device is provided with a shifting fork capable of adjusting the clearance of the friction pair, and the brake caliper body is made of silicon bronze alloy containing stainless steel components through a precision die casting process.

Preferably, the rack is welded by steel plates, the front side of the rack is opened, the rack is integrally machined, the chain wheel and the chain are lubricated by engine oil in a splashing mode, and the rest of the chain wheel and the chain are lubricated by grease.

The invention has the beneficial effects that: the ball cage type coupling has the advantages that the dual-power system is provided, the two systems are mutually standby, the power loss of the motor direct-drive system is small, the cost is low, the transmission is simple, the faults are few, the overall size is small, the weight is light, the occupied drill floor space is few, the size of the ball cage type coupling is small, the transmission torque is large, the compensation capacity is strong, the tight connection of the motor is met, the disc type brake is designed aiming at severe working conditions, the maintenance points are few, the friction pair is large, and the service life is long.

Drawings

FIG. 1 is a schematic view of a direct drive dual power drilling winch.

FIG. 2 is a schematic view of a drum shaft assembly.

Fig. 3 is a schematic view of the motor and installation.

Fig. 4 is a schematic view of a coupling.

Fig. 5 is a schematic view of a motor attachment flange.

FIG. 6 is a schematic view of the installation of the disc brake.

FIG. 7 is a schematic view of a brake caliper.

In the figure, 1, a roller shaft assembly, 2, a frame, 3, a motor, 4, a disc brake, 5, a clutch, 6, a chain wheel, 7, a brake disc, 8, a roller body and 9, shafts are arranged. 10. Coupling, 11, connecting flange, 12, key, 13, encoder joint, 14, brake caliper.

Detailed Description

Embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 7, the direct-drive double-power drilling winch of the embodiment is composed of a drum shaft assembly 1, a frame 2, a motor 3, a disc brake 4 and a variable frequency control system, wherein a single shaft is used for double power input, a coupler 10 is installed at the right end of a shaft 9, the coupler 10 is directly connected with a rotor of an alternating current variable frequency motor 3, a base of the motor 3 is installed on a base, a chain wheel driving device is installed at the left end of the shaft 9, a chain wheel 6 is hung on the shaft 9 through a clutch 5, two sets of power independently run and are mutually standby, when the motor 3 drives, a main brake is used for motor energy consumption braking, an auxiliary brake is used for disc brake 4, when the chain wheel drives, the main brake is used for disc brake 4, and all controls are integrated in a driller room.

In the embodiment, a roller shaft assembly 1 mainly comprises a clutch 5, a chain wheel 6, a brake disc 7, a roller body 8 and a shaft 9, wherein the roller body 8 is installed at the middle section of the shaft 9 and is in key connection, the single-sided brake disc 7 is installed on the left side plate of the roller body 8 and is positioned in a locking manner, flat-mouth-shaped bearing seats are installed on two sides of the roller body 8, self-aligning roller bearings are installed in the bearing seats, the bearing seats are rotatably installed in a rack 2, the right side of the shaft 9 is connected with a flange coupling 10, the left side of the shaft 9 is provided with the clutch 5, an outer gear ring of the clutch is installed on the shaft 9, the movable disc is connected with an inner gear ring, the inner gear ring is connected with a connecting disc, the connecting disc is connected with a hub, the hub is connected with the chain wheel 6, and two bearings are sleeved in the hub in a hollow manner.

In this embodiment, the clutch 5 is a pneumatic tyre type push plate clutch, the clutch fluted disc is in tooth connection with the outer gear ring and the inner gear ring, the air inlet rotary joint is installed at the left end of the shaft 9, the shaft center is drilled, control air enters the air bag through a pipeline from a shaft radial hole, and the clutch inner gear ring is provided with an oil thrower.

In this embodiment, the center of motor 3 is the through-hole, and shaft coupling 10 is installed in the motor through-hole, and electric motor rotor right side hookup flange 11, bolt and terminal surface key-type connection, flange 11 and shaft coupling 10 adopt radial key 12 to be connected, and the encoder connects 13 and shaft coupling 10 flange joint, and encoder connects installation logging and well drilling encoder.

In this embodiment, the coupling 10 is a non-standard sliding type DOX type constant velocity universal joint, the two ends are flanges, and the left side is connected with the end face key of the shaft 9.

In the embodiment, the disc brake 4 is of a pneumatic type, control gas comes from a drilling machine gas source, the brake disc 7 is integrally cast by bronze cast by a metal precision die, a plurality of radiating fins are uniformly distributed on the circumference of an inner layer of a friction surface, the brake caliper 14 is a lever mechanism, the actuator is of a low-pressure type, the actuator is provided with a shifting fork, the shifting fork is used for adjusting the gap between the brake disc and a brake block, the spring type safety caliper is provided with a compensation connecting device, the brake caliper body is made of silicon bronze alloy containing stainless steel components through a precision die casting process, the brake caliper body is suitable for a hydraulic component or a spring component group, and the friction block is made of a non-asbestos component composite material.

The winch motor control is AC frequency conversion control, the frequency conversion unit adopts a full digital vector control AC frequency conversion speed regulation device, AC is rectified into DC and then converted into AC with adjustable frequency to control the motor 3, VFD output frequency is controlled by an intelligent remote driller electric control console, the system adopts PLC and PROFIBUS bus to carry out data rapid exchange between systems, and all frequency conversion operating states and MCC operating states of the system are monitored and fault alarming, parameter modification, diagnosis, storage, message, configuration pictures and the like through an industrial personal computer (containing HML), and the system has the functions of frequency converter fault alarming indication and disc brake 4 emergency brake control, anti-collision safety stopping speed, AC input voltage no-voltage protection, overcurrent short-circuit protection, motor 3 wind loss protection, locking protection and the like, and the energy consumption brake unit consists of a chopper power brake unit and a brake resistor, under the braking working condition, the automatic operation is carried out, the energy consumption braking power is generated, the requirements of the drilling load and speed required by the winch are met, the drilling speed is stable and adjustable, the drilling tool is hovered, and meanwhile, the energy consumption braking unit of the winch is applied to realize the soft stop of the rotary table.

In this embodiment, frame 2 is by the steel sheet welding, and the front side opening is installed bearing seat hole welding thick flange, and all welds whole processing after finishing, rotating part installation guard shield, frame top installation double track way rope winding jib and shelves rope sheave.

In the embodiment, the chain wheel and the chain are used for splash lubrication of engine oil, the oil tank is provided with the vernier, the air filter and the oil injection window, the rest of the oil tank is lubricated by grease, the bearing is intensively lubricated, the oil cup is centralized on one side of the rack 2, and the copper pipe is arranged between the oil cup and a lubricating point.

In the embodiment, the power of the chain wheel 6 is driven by a power system of a drilling machine host through a chain, the clutch 6 is disconnected when the motor 3 works, the motor driving system serves as a main driving system of a winch, the motor 3 is disconnected when the chain wheel 6 works, the chain driving system serves as an auxiliary driving system, the two sets of power systems independently run and are mutually standby, the two sets of systems are switchable, and after a well site is moved, the chain driving system is started before an electric control system is not connected or debugging is finished.

This example is illustrated as follows: the two sets of transmission systems are designed to be safely interlocked, and the brake disc protective cover has good ventilation capacity.

Claims

1. A direct-drive double-power well drilling winch is characterized by comprising a rack, a roller shaft assembly, a motor, a disc brake and an alternating-current variable frequency control system, wherein the direct-drive double-power well drilling winch adopts double power input of the motor and a chain wheel, two sets of power independently run, when the motor is driven, the main brake is motor energy consumption brake, the disc brake is auxiliary brake, when the chain wheel is driven, the disc brake is main brake, the direct-drive double-power well drilling winch is a single shaft, a roller body is installed in the middle section of the shaft, a brake disc is installed on the left side plate of the roller body, flat-mouth-shaped bearing seats are installed on two sides of the roller body, a clutch outer gear ring is installed on the shaft, the inner gear ring is connected with a driving disc, the inner gear ring is connected with a connecting disc, the connecting disc is connected with a hub, the hub is connected with the chain wheel, two hollow bearings are installed in the hub, the right end of the shaft is connected with a flange which is arranged in a motor through hole, the right side of a motor rotor is connected with a connecting flange which is in end surface key connection, the connecting flange is in radial key connection with the shaft coupling, the encoder joint is connected with the flange of the shaft coupling, the motor is an alternating current variable frequency motor, the disc brake is of a pneumatic type, a plurality of radiating fins are uniformly distributed on the circumference of the inner layer of the friction surface of the brake disc, the brake caliper is provided with a low-pressure type executing device, the executing device is provided with a shifting fork, the frequency conversion unit of the alternating current frequency conversion control system adopts a full-digital vector control frequency conversion speed regulation device, an intelligent remote driller electric control console controls the VFD output frequency, a PLC and a PROFIBUS bus are adopted to carry out rapid data exchange between the systems, the dynamic braking unit consists of a chopper power braking unit and a braking resistor, and the system automatically puts into operation and generates dynamic braking power under the braking working condition.

2. The direct-drive double-power drilling winch according to claim 1, wherein the center of the motor is a through hole.

3. The direct-drive dual-power drilling winch according to claim 1, wherein the coupling is a sliding DOX type constant velocity universal joint.

4. The direct-drive dual-power drilling winch according to claim 1, wherein the disc brake is of a pneumatic type, the brake disc is cast by bronze die-casting with a metal finish mold, a plurality of cooling fins are uniformly distributed on the circumference of an inner layer of a friction surface, the brake caliper actuator is of a low-pressure type, the actuator is provided with a shifting fork capable of adjusting a clearance of a friction pair, and a brake caliper body is made of silicon bronze alloy containing stainless steel components through a finish mold die-casting process.