CN111776969A - Manned carrying electric winch for oil drilling machine - Google Patents
Manned carrying electric winch for oil drilling machine Download PDFInfo
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- CN111776969A CN111776969A CN202010745149.8A CN202010745149A CN111776969A CN 111776969 A CN111776969 A CN 111776969A CN 202010745149 A CN202010745149 A CN 202010745149A CN 111776969 A CN111776969 A CN 111776969A
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- 238000005553 drilling Methods 0.000 title abstract description 20
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000008878 coupling Effects 0.000 claims description 6
- 239000003129 oil well Substances 0.000 claims 9
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000005265 energy consumption Methods 0.000 abstract description 9
- 230000009977 dual effect Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 23
- 239000003921 oil Substances 0.000 description 15
- 238000006243 chemical reaction Methods 0.000 description 13
- 230000000694 effects Effects 0.000 description 5
- 238000004880 explosion Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/02—Driving gear
- B66D1/12—Driving gear incorporating electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/46—Control devices non-automatic electric
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
- B66D5/30—Operating devices electrical
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/01—Winches, capstans or pivots
- B66D2700/0125—Motor operated winches
- B66D2700/0141—Electrically actuated
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D2700/00—Capstans, winches or hoists
- B66D2700/03—Mechanisms with latches or braking devices in general for capstans, hoists or similar devices as well as braking devices actuated electrically or by fluid under pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a manned carrying electric winch for an oil drilling machine, which comprises a variable frequency electric control assembly, a winch main body, a control box and a control box, wherein the winch main body is provided with a winch main body; a frequency converter, a temperature controller, a heating device and a control loop unit are arranged in a control cabinet at the upper part of the variable-frequency electric control assembly; the winch main body comprises an alternating-current variable-frequency brake motor, a speed reducer and a drum body, a disc brake and an encoder are mounted at the tail of the motor, an automatic rope arranger and a rope pressing device are mounted on a winch frame, and a limiting device is arranged on an output shaft of the drum; the control box is provided with a control handle and an emergency stop button; the control box is provided with a manned and cargo-carrying function switching knob, an emergency stop knob and the like; the winch main body is integrally connected with external equipment through a mounting bracket. The invention has the advantages of dual purposes of carrying people and goods, convenient operation, safety, reliability, accurate speed control, stable transmission, low energy consumption, high efficiency, capability of meeting the use requirements of wide areas including alpine regions and the like.
Description
Technical Field
The invention relates to the technical field of petroleum drilling and mechanical equipment, in particular to a manned and carried electric winch for a petroleum drilling machine.
Background
In the oil field drilling operation, the pneumatic/hydraulic winch and other tools are commonly used for carrying people and goods hoisting operation at present; the existing pneumatic/hydraulic winches have the following disadvantages: 1) the winch only has the single function of carrying people or objects, so the utilization rate is low; and the drilling platform needs to be equipped with two winches for carrying people and goods, so that the equipment cost is high, and more space of the drilling platform is occupied; 2) in the transmission process, because energy needs to be converted twice, pressure loss, volume loss and mechanical friction loss exist, and the total efficiency is low; 3) the gas/liquid has certain compressibility, inevitable leakage exists on the matching surface, the strict transmission ratio cannot be ensured, the transmission precision is poor, and the energy consumption is high. 4) The working performance and efficiency of the pneumatic/hydraulic transmission system are greatly affected by temperature, and the working performance is poor in a high-temperature or low-temperature environment. When the temperature is low, the compressed air is easy to generate condensation and icing conditions, so that equipment is damaged; the hydraulic oil has large viscosity, poor fluidity and low efficiency. Especially, in the alpine region, such as the Russia and the middle Asia part, the use requirement of the local environment is difficult to meet.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a manned carrying electric winch for an oil drilling machine, which is convenient to operate, safe, reliable, accurate in speed control and stable in transmission; low energy consumption and high efficiency, and can meet the use requirements of wide areas including alpine regions.
In order to achieve the purpose, the invention adopts the following technical scheme: the manned loading electric winch for the oil drilling machine comprises a variable frequency electric control assembly, a winch main body, a control box and a control box, wherein the variable frequency electric control assembly is connected with the winch main body, the control box and the control box through cables. The variable-frequency electric control assembly comprises a control cabinet, a resistance cabinet, a frequency converter, a control loop unit and an instrument switch; the frequency converter and the control loop unit are arranged in the control cabinet, the instrument switch is arranged on a front panel of the control cabinet, and the resistor cabinet is arranged below the control cabinet; the winch main body comprises an alternating-current variable-frequency brake motor, a planetary reducer, a winch frame, a drum body, an automatic rope arranger, a rope pressing device, a limiting device and an installation support, wherein the alternating-current variable-frequency brake motor, the planetary reducer and the drum body are sequentially and coaxially connected and installed on the winch frame; the automatic rope guider is arranged on the upper side of the winch frame, and the rope pressing device is arranged on the rope outlet side of the winch frame; the output shaft of the winding drum is provided with a limiting device; the winch main body is connected with external equipment through the mounting bracket.
The variable-frequency electric control assembly further comprises a temperature controller, a heating device and a cooling fan, wherein the temperature controller controls the electric heater and the cooling fan through the control loop unit, the temperature controller is electrically connected with the instrument switch through the control loop unit, the temperature controller, the electric heater and the control loop unit are installed in the control cabinet, and the cooling fan is arranged at the lower part of the resistance cabinet.
A second cooling fin is arranged at the back of the control cabinet corresponding to the position of the frequency converter, and a first cooling fin is arranged at the back of the resistor cabinet corresponding to the position of the heat dissipation resistor; and heat dissipation air ducts are arranged at the back parts of the control cabinet and the resistance cabinet.
The control box has set up brake valve lever and scram button, the control box has set up manned year thing function switch knob, promotion and has transferred control knob and scram knob.
Preferably, the tail part of the alternating current variable frequency brake motor is provided with a disc brake release bolt, a disc brake and an encoder, the disc brake and the encoder are both arranged in the motor shell, the alternating current variable frequency brake motor is driven by the frequency converter, and closed-loop vector control is realized by combining the encoder.
Preferably, the reel body side is provided with a belt brake, and the belt brake can be a manual belt brake or an automatic belt brake.
Preferably, the automatic rope arranger is powered by the winding drum body, and the automatic rope arranger moves for a distance of one equivalent diameter of the steel wire rope every time the steel wire rope is wound on the winding drum body.
Preferably, the connection mode between the mounting bracket and the external device is any one of T-shaped buckle connection, flange connection or pin connection.
Preferably, the limiting device is mounted on the winch main body and is connected with the winding drum body output shaft through a coupling and an input shaft of a speed reducer. The speed reducer fixing plate is connected with a shell of the speed reducer to fix the speed reducer on the winch main body; the output shaft of the speed reducer is provided with a swing rod adjusting plate and a swing rod; the winch is characterized in that the inner adjusting ring and the outer adjusting ring are arranged on the winch body in sequence from inside to outside, the inner adjusting ring and the outer adjusting ring are arranged on the output shaft of the speed reducer in opposite positions, an inner adjusting rod and an outer adjusting rod are respectively arranged on the inner adjusting ring and the outer adjusting ring, one end of the inner adjusting rod is provided with a lower limiting travel switch, and one end of the outer adjusting rod is provided with an upper limiting travel switch.
Preferably, the control box, the alternating current variable frequency brake motor, the resistor cabinet and the cooling fan are all explosion-proof elements.
The manned object-carrying electric winch for the oil drilling machine controls components such as a frequency converter, a control loop unit and the like in a frequency conversion electric control assembly through a control box and a control box, outputs an alternating-current frequency conversion power supply, drives an alternating-current frequency conversion brake motor, further sequentially drives a planetary speed reducer and a winding drum body to rotate, and enables the winding drum body to wind or loosen a steel wire rope, so that a heavy object is lifted or lowered; the frequency conversion electric control assembly and the alternating current frequency conversion brake motor are combined with each other to realize energy consumption braking, namely, when braking is carried out, the alternating current frequency conversion brake motor is converted from a motor state to a generator state, mechanical energy of a load is converted into heat, and the heat is dissipated to the environment through the brake resistor, so that the purpose of braking is achieved, and energy conservation and consumption reduction are achieved.
The manned and carried electric winch for the oil drilling machine is provided with two operation modes of manned and carried, and the two operation modes can be switched through the manned and carried function switching knob; the winch is switched to a loading mode, stepless speed regulation operation of the winch can be controlled through a control handle on the control box, and the winch is stable and efficient; and when the winch is switched to the manned mode, the winch can be controlled to run at a constant speed in a manned mode through the lifting and lowering control knob on the control box, so that the winch is stable and safe. The emergency stop button is arranged on the control box and the control box, and in case of emergency, any button is pressed down, so that the winch stops rapidly, and double protection is safer.
The manned carrying electric winch for the oil drilling machine is controlled by the frequency converter, and can realize multiple protection functions such as power-off protection, overload protection, undervoltage protection, open-phase protection, rope loosening protection and the like; the speed of the winch is fed back in real time by combining the encoder, and the operation reliability and stability of the winch are improved by adopting closed-loop vector control. And when the working condition needs (such as disc brake failure), the system can detect the failure and automatically enter a zero servo operation state, automatic hovering or automatic slow safe weight placement is realized, and the safety is ensured.
The invention relates to a manned and carried electric winch for an oil drilling machine.A disc brake release bolt, a disc brake and an encoder are arranged in a shell at the tail part of an alternating current variable frequency brake motor; the encoder and the frequency converter are combined to realize closed-loop vector control; the disc brake is a normally closed brake and has an emergency manual release function, when faults such as power failure occur, the disc brake can be forcibly released through the disc brake release bolt, personnel/heavy objects can be safely landed under the assistance of the belt brake, and danger caused by the fact that the personnel/heavy objects stay high above the ground for a long time is avoided. In the invention, the encoder is arranged in the explosion-proof cover at the tail part of the motor, so that the non-explosion-proof encoder can meet the explosion-proof requirement of an oil field site, and the cost is reduced; according to different use environments, an external explosion-proof encoder installation scheme can be adopted.
The frequency converter, the temperature controller, the heating device and the control loop unit are arranged in the explosion-proof control cabinet and isolated from the outside, so that the aim of explosion prevention is fulfilled.
The temperature controller is connected with the electric heater and the explosion-proof cooling fan through the control loop unit, is used for detecting the real-time temperature in the explosion-proof control cabinet, and can automatically start the electric heater through the control loop unit when the temperature is too low and automatically stop heating when the temperature reaches a set value; when the temperature is too high, the temperature controller can control the loop unit to enable the cooling fan to be automatically started, and when the temperature is lower than a set value, the cooling fan is automatically stopped. The automatic control of the temperature controller to the electric heater and the cooling fan ensures that the frequency converter is always in a proper temperature environment to meet the use requirements of different high-temperature and low-temperature environments such as deserts, polar regions and the like. The first radiating fin is arranged at the position, corresponding to the frequency converter, of the back face of the control cabinet, so that heat generated in the operation of the electric control system is effectively transmitted to the outside of the cabinet body; the second radiating fin is arranged at the position, corresponding to the brake resistor, on the back surface of the resistor cabinet, so that heat generated by the brake resistor is effectively transmitted to the outside of the cabinet body; the heat dissipation air duct arranged on the back of the body cabinet and the heat dissipation fan arranged on the lower portion of the resistor cabinet blow away heat on the heat dissipation fins in time, and the heat dissipation effect is enhanced.
All non-explosion-proof electrical elements of the variable-frequency electronic control assembly are packaged in an explosion-proof cabinet body so as to meet the use requirement of an explosion-proof area of an oil drilling machine; meanwhile, according to different requirements, when the variable-frequency electric control assembly is placed in a non-explosion-proof area, if the variable-frequency electric control assembly is placed in an air-conditioning constant-temperature electric control room of an oil drilling machine, the cabinet body can be of a non-explosion-proof structure, and heating and heat dissipation devices can be omitted.
According to the automatic rope arranger, the automatic rope arranger is arranged on the upper side of the winch frame, the power of the automatic rope arranger comes from the winding drum body, and the automatic rope arranger (clamping a steel wire rope) moves for a distance of one equivalent diameter of the steel wire rope every time the steel wire rope is wound on the winding drum body by setting a proper transmission ratio, so that the rope arrangement is ensured to be orderly. The rope pressing device is further mounted on one side of the rope outlet of the winding drum body and compresses the steel wire rope all the time under the action of spring force, rope loosening and rope riding under the rope winding working condition of the steel wire rope under the no-load rope releasing working condition are avoided, and the rope pressing device is matched with the rope arranging device, so that the rope arranging effect is better.
The limiting device is arranged on the winch main body and is connected with the winding drum output shaft through the coupling and the speed reducer. When the winch runs, the winding drum body drives the swing rod to rotate through the coupling, the speed reducer and the swing rod adjusting plate, and when the swing rod rotates to a set position, the upper limit travel switch or the lower limit travel switch is touched to send an electric signal to control the winch to stop running. Therefore, the personnel/heavy objects hung by the winch can only operate within the set height range, and the safety is ensured. The upper limit position and the lower limit position of the winch in operation and the allowable operation distance can be adjusted by adjusting the relative angle and the position of the inner adjusting ring and the outer adjusting ring.
The invention has the beneficial effects that: 1) the invention has the double purposes of carrying people and carrying objects, has high equipment utilization rate, can save the special manned winch, reduces the equipment purchase cost and saves the space of a drilling platform; 2) the winch adopts a variable frequency electric control component (frequency converter) to drive an alternating current variable frequency motor, is combined with an encoder, realizes closed-loop vector control, has accurate control, stable transmission, high safety performance, obvious energy saving and consumption reduction effects and can meet the use requirements of wide areas including alpine regions; 3) the winch adopts motor energy consumption braking, disc braking and belt braking and triple braking linkage control, and can ensure reliable braking and safe working of the winch; 4) the winch is directly driven by electric energy, so that the intermediate conversion links of the traditional pneumatic winch and hydraulic winch are reduced, and the efficiency is greatly improved; 5) the motor dynamic braking is used as a main brake, and when the winch is braked, the motor is converted into the generator to convert the loaded mechanical energy into the energy required by the braking, so that the energy required by the braking of the winch is extremely low, and the energy consumption is greatly saved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a front view of the variable frequency electrical control assembly of the present invention.
Fig. 3 is a side view of the variable frequency electronic control assembly of the present invention.
Fig. 4 is a structural view of the winch main body of the present invention.
FIG. 5 is a side view of the winch body of the present invention.
Fig. 6 is a front view of the structure of the limiting device of the invention.
Figure 7 is a side view of the spacing device of the present invention.
Fig. 8 is a control schematic of the present invention.
Wherein: 1-variable frequency electric control component, 101-explosion-proof control cabinet, 102-explosion-proof resistance cabinet, 103-frequency converter, 104-temperature controller, 105-heating device, 106-control loop unit, 107-instrument switch, 108-heat dissipation resistor, 109-explosion-proof heat dissipation fan, 110 first heat dissipation fin, 111-heat dissipation air duct, 112 second heat dissipation fin, 2-winch main body, 201-explosion-proof alternating current variable frequency brake motor, 201-1-disc brake release bolt, 201-2-disc brake, 201-3-encoder, 202-planetary reducer, 203-winch frame, 204-drum body, 205-automatic rope arranger, 206-belt brake, 207-rope press, 208-limiting device, 208-1-coupling, 208-2-speed reducer, 208-3-speed reducer fixing plate, 208-4-swing rod adjusting plate, 208-5-swing rod, 208-6-inner adjusting ring, 208-7-inner adjusting rod, 208-8-outer adjusting ring, 208-9-outer adjusting rod, 208-10-upper limit travel switch, 208-11-lower limit travel switch, 209-mounting bracket, 3-control box, 301-control handle, 302-emergency stop button 1, 4-control box, 401-manned/cargo function switching knob, 402-lifting/lowering control knob, and 403-emergency stop button.
Detailed Description
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment, as shown in fig. 1, the manned carrying electric winch for the oil drilling machine comprises a variable frequency electric control assembly 1, a winch main body 2, a control box 3 and a control box 4, wherein the variable frequency electric control assembly 1 is respectively connected with the winch main body 2, the control box 3 and the control box 4 through cables.
As shown in fig. 2 and 3: the variable-frequency electric control assembly 1 comprises a control cabinet 101, a resistor cabinet 102, a frequency converter 103, a temperature controller 104, a heating device 105, a control loop unit 106, an instrument switch 107, a heat dissipation resistor 108, a heat dissipation fan 109, a first heat dissipation fin 110, a heat dissipation air duct 111 and a second heat dissipation fin 112; the frequency converter 103, the temperature controller 104, the heating device 105 and the control loop unit 106 are arranged in the cabinet body of the control cabinet 101, the instrument switch 107 is arranged on the front panel of the control cabinet 101, and the second radiating fin 112 is arranged on the back of the control cabinet 101 at a position corresponding to the frequency converter 103; the resistor cabinet 102 is arranged below the control cabinet 101, the heat dissipation resistor 108 is arranged in the resistor cabinet 102, and the first heat sink 110 is arranged on the back of the resistor cabinet 102 at a position corresponding to the heat dissipation resistor 108; the back parts of the control cabinet 101 and the resistor cabinet 102 are provided with the heat dissipation air duct 111, and the lower part of the resistor cabinet 102 is provided with the heat dissipation fan 109.
The frequency converter 103, the temperature controller 104, the heating device 105 and the control loop unit 106 are arranged in the control cabinet 101 and isolated from the outside, so that the aim of explosion prevention is fulfilled;
the temperature controller 104 is connected with the electric heater 105 and the cooling fan 109 through the control loop unit 106, the temperature controller 104 is used for detecting the real-time temperature of the control cabinet 101, when the temperature is too low, the electric heater 105 can be controlled to automatically start through the control loop unit 106, and the heating is automatically stopped when the temperature reaches a set value; when the temperature is too high, the temperature controller 104 can control the cooling fan 109 to automatically start through the control loop unit 106, and automatically stop when the temperature is lower than a set value; the temperature controller 104 automatically controls the electric heater 105 and the cooling fan 109, so that the frequency converter 103 is always in a suitable temperature environment to meet the use requirements of different high-temperature and low-temperature environments such as deserts, polar regions and the like.
The braking resistor 108 is installed in the resistor cabinet 102 and isolated from the outside, so as to achieve the purpose of explosion prevention.
A second cooling fin 112 is arranged on the back surface of the control cabinet 101 corresponding to the position of the frequency converter 103, so that heat generated in the operation of the electric control system is effectively transferred to the outside of the cabinet body; a second cooling fin 110 is arranged on the back surface of the resistor cabinet 102 corresponding to the position of the brake resistor 108, so that heat generated by the brake resistor 108 is effectively transferred to the outside of the cabinet body; the heat dissipation air duct 111 arranged at the back of the body cabinet and the heat dissipation fan 109 arranged at the lower part of the resistor cabinet 102 blow away heat on the heat dissipation fins in time, so that the heat dissipation effect is enhanced.
All non-explosion-proof electrical elements of the variable-frequency electronic control assembly 1 are packaged in an explosion-proof cabinet body so as to meet the use requirement of an explosion-proof area of the oil drilling machine; meanwhile, according to different requirements, when the variable-frequency electric control assembly 1 is placed in a non-explosion-proof area, such as an air-conditioning constant-temperature electric control room of an oil drilling machine, the cabinet body can be of a non-explosion-proof structure, and heating and radiating devices can be omitted;
the winch of the invention controls components such as a frequency converter 103, a control loop unit 106 and the like in a frequency conversion electric control assembly 1 through a control box 3 and a control box 4, outputs an alternating current frequency conversion power supply, drives an alternating current frequency conversion brake motor 201, and further sequentially drives a planetary reducer 202 and a winding drum 204 to rotate, so that the winding drum 204 is enabled to wind or loosen a steel wire rope, and further a heavy object is lifted or lowered; the frequency conversion electric control assembly 1 and the alternating current frequency conversion brake motor 201 are combined with each other to realize energy consumption braking, namely, when braking is carried out, the alternating current frequency conversion brake motor is converted from a motor state to a generator state, mechanical energy of a load is converted into heat, and the heat is dissipated to the environment through a brake resistor, so that the purpose of braking is achieved, and energy conservation and consumption reduction are achieved.
The winch is provided with two operation modes of manned operation and manned operation, and the two operation modes are switched by a manned operation function switching knob 401; the winch is switched to a loading mode, stepless speed regulation operation of the winch can be controlled through a control handle 301 on the control box 3, and the winch is stable and efficient; and the winch is switched to a manned mode, and the winch is controlled to run at a constant speed in a manned mode by lifting and lowering a control knob 402 on the control box 4, so that the winch is stable and safe. All set up scram button on control box 3 and the control box 4, emergency beats arbitrary button down, and the winch stops rapidly, and duplicate protection is safer.
The winch is controlled by the frequency converter 103, so that various protection functions such as power-off protection, overload protection, undervoltage protection, open-phase protection, rope loosening protection and the like can be realized; the speed of the winch is fed back in real time by combining the encoder 201-3, and the operation reliability and stability of the winch are improved by adopting closed-loop vector control. And when the working condition needs (such as disc brake failure), the system can detect the failure and automatically enter a zero servo operation state, automatic hovering or automatic slow safe weight placement is realized, and the safety is ensured.
The automatic rope arranger 205 is arranged on the upper side of the winch frame 203, the power of the automatic rope arranger comes from the winding drum body 204, and the automatic rope arranger 205 moves for a distance of one equivalent diameter of the steel wire rope every time the steel wire rope is wound on the winding drum body 204 by setting a proper transmission ratio, so that the rope arrangement is ensured to be orderly.
The rope pressing device 207 is further mounted on one rope outlet side of the winding drum body 204, the rope pressing device 207 compresses the steel wire rope all the time under the action of spring force, rope loosening of the steel wire rope under the no-load rope releasing working condition and rope riding under the rope winding working condition are avoided, and the steel wire rope is matched with the automatic rope arranging device 205, so that the rope arranging effect is better.
The winch main body 2 is connected with external equipment through a mounting bracket 208, and the mounting bracket 208 is connected in any one of T-shaped buckle connection, flange connection or pin connection.
The outside of the winding drum body 204 is also provided with a belt brake 206 for realizing the emergency brake function, and the belt brake 206 can be a manual belt brake or an automatic belt brake, so as to meet the requirements of different working conditions.
The control switch 3 and the alternating current variable frequency brake motor 201 are explosion-proof elements so as to meet the use requirement of an explosion-proof area of the oil rig;
as shown in fig. 6 and 7: the limiting device 208 is mounted on the winch body 4 and is connected with the drum body output shaft through the coupling 208-1 and the input shaft of the speed reducer 208-2, the speed reducer fixing plate 208-3 is connected with the shell of the speed reducer 208-2, and the speed reducer 208-2 is fixed on the winch body 2; an output shaft of the speed reducer 208-2 is provided with a swing rod adjusting plate 208-4 and a swing rod 208-5; the inner adjusting ring 208-6 and the outer adjusting ring 208-8 are arranged on the winch main body 2 from inside to outside in sequence, the relative positions of the inner adjusting ring 208-6 and the outer adjusting ring 208-8 are arranged at the output shaft end of the speed reducer 208-2, an inner adjusting rod 208-7 and an outer adjusting rod 208-9 are respectively arranged on the inner adjusting ring 208-6 and the outer adjusting ring 208-8, a lower limit travel switch 208-11 is arranged at one end of the inner adjusting rod 208-7, and an upper limit travel switch (208-10) is arranged at one end of the outer adjusting rod 208-9.
When the winch runs, the winding drum body drives the swing rod 208-5 to rotate through the coupling 208-1, the speed reducer 208-2 and the swing rod adjusting plate 208-4, when the swing rod 208-5 rotates to a set position, the upper limit travel switch 208-10 or the lower limit travel switch 208-11 is touched to send out an electric signal, the winch is controlled to stop running, people/heavy objects hung by the winch can only run within a set height range, safety is ensured, and the upper limit position, the lower limit position and the running range of the winch can be adjusted by adjusting the relative angles and the positions of the inner adjusting ring 208-6, the inner adjusting rod 208-7, the outer adjusting ring 208-8 and the outer adjusting rod 208-9.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a manned year thing electric winch for oil-well rig which characterized in that: the winch control system comprises a variable frequency electric control assembly (1), a winch main body (2), a control box (3) and a control box (4), wherein the variable frequency electric control assembly (1) is respectively connected with the winch main body (2), the control box (3) and the control box (4) through cables; the variable-frequency electric control assembly (1) comprises a control cabinet (101), a resistance cabinet (102), a frequency converter (103), a control loop unit (106) and an instrument switch (107); the frequency converter (103) and the control loop unit (106) are arranged in the control cabinet (101), the instrument switch (107) is arranged on a front panel of the control cabinet (101), and the resistor cabinet (102) is arranged below the control cabinet (101); the winch main body comprises an alternating-current variable-frequency brake motor (201), a planetary speed reducer (202), a winch frame (203), a winding drum (204), an automatic rope arranger (205), a rope pressing device (207), a limiting device (208) and a mounting bracket (209), wherein the alternating-current variable-frequency brake motor (201), the planetary speed reducer (202) and the winding drum body (204) are sequentially and coaxially connected and mounted on the winch frame (203); the automatic rope guider (205) is arranged on the upper side of the winch frame (203), and the rope pressing device (207) is arranged on the rope outlet side of the winch frame (203); the output shaft of the winding drum is provided with a limiting device (208).
2. The electric winch for carrying people and goods for oil-well rig according to claim 1, characterized in that: the variable-frequency electric control assembly (1) further comprises a temperature controller (104), a heating device (105) and a cooling fan (109), wherein the temperature controller (104) controls the electric heater (105) and the cooling fan (109) through the control loop unit (106), the temperature controller (104) is electrically connected with the instrument switch (107) through the control loop unit (106), the temperature controller (104), the electric heater (105) and the control loop unit (106) are installed in the control cabinet (101), and the cooling fan (109) is arranged on the lower portion of the resistance cabinet (102).
3. The electric winch for carrying people and goods for oil-well rig according to claim 2, characterized in that: the back of the control cabinet (101) is provided with a second radiating fin (112) corresponding to the position of the frequency converter (103), the back of the resistor cabinet (102) is provided with a first radiating fin (110) corresponding to the position of the radiating resistor (108), and the backs of the control cabinet (101) and the resistor cabinet (102) are provided with a radiating air duct (111).
4. The electric winch for manned goods for oil-well rig according to claim 1, characterized in that: control handle (301) and scram button (302) have been set up in control box (3), control box (4) have set up manned year thing function switch knob (401), promote and transfer control knob (402) and scram knob (403).
5. The electric winch for manned goods for oil-well rig according to claim 1, characterized in that: the tail part of the alternating-current variable-frequency brake motor (201) is provided with a disc brake release bolt (201-1), a disc brake (201-2) and an encoder (201-3), and the disc brake (201-2) and the encoder (201-3) are both arranged in a motor shell; the frequency converter (103) is combined with the encoder (201-3) by driving the alternating current variable frequency brake motor (2) to realize closed-loop vector control.
6. The electric winch for manned goods for oil-well rig according to claim 1, characterized in that: the outside of the winding drum body (204) is provided with a belt brake (206), and the belt brake (206) can be a manual belt brake or an automatic belt brake.
7. The electric winch for manned goods for oil-well rig according to claim 1, characterized in that: the power of the automatic rope guider (205) comes from the winding drum body (204), and the automatic rope guider (205) moves for a distance of one equivalent diameter of the steel wire rope every time the steel wire rope is wound on the winding drum body (204).
8. The electric winch for manned goods for oil-well rig according to claim 1, characterized in that: the limiting device (208) is arranged on the winch main body (2) and is connected with an output shaft of the winding drum body (204) through a coupling (208-1) and an input shaft of a speed reducer (208-2); the speed reducer fixing plate (208-3) is connected with a shell of the speed reducer (208-2), and an output shaft of the speed reducer (208-2) is provided with a swing rod adjusting plate (208-4) and a swing rod (208-5); the inner adjusting ring (208-6) and the outer adjusting ring (208-8) are arranged on the winch main body (2) from inside to outside in sequence, the relative positions of the inner adjusting ring (208-6) and the outer adjusting ring (208-8) are arranged at the output shaft end of the speed reducer (208-2), an inner adjusting rod (208-7) and an outer adjusting rod (208-9) are respectively arranged on the inner adjusting ring (208-6) and the outer adjusting ring (208-8), a lower limiting travel switch (208-11) is arranged at one end of the inner adjusting rod (208-7), and an upper limiting travel switch (208-10) is arranged at one end of the outer adjusting rod (208-9).
9. The manned cargo electric winch for the oil-well rig according to any one of claims 1 to 9, characterized in that: the control box (3), the control box (4), the alternating current variable frequency brake motor (201), the resistor cabinet (102) and the cooling fan (109) are all explosion-proof elements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010745149.8A CN111776969A (en) | 2020-07-29 | 2020-07-29 | Manned carrying electric winch for oil drilling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010745149.8A CN111776969A (en) | 2020-07-29 | 2020-07-29 | Manned carrying electric winch for oil drilling machine |
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| CN111776969A true CN111776969A (en) | 2020-10-16 |
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| CN202010745149.8A Pending CN111776969A (en) | 2020-07-29 | 2020-07-29 | Manned carrying electric winch for oil drilling machine |
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