CN201052952Y - Alternating current frequency conversion two-shift winch - Google Patents
Alternating current frequency conversion two-shift winch Download PDFInfo
- Publication number
- CN201052952Y CN201052952Y CNU2007200797654U CN200720079765U CN201052952Y CN 201052952 Y CN201052952 Y CN 201052952Y CN U2007200797654 U CNU2007200797654 U CN U2007200797654U CN 200720079765 U CN200720079765 U CN 200720079765U CN 201052952 Y CN201052952 Y CN 201052952Y
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- winch
- frequency conversion
- low
- reducing gearbox
- speed
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Abstract
The utility model relates to an AC frequency conversion two-speed winch used for an AC frequency conversion winch of an oil and natural gas drilling rig, and belongs to the drilling rig equipment production technical field. The utility model comprises a driving mechanism, a shifting down mechanism and an emergency mechanism, the driving mechanism comprises two main motors and a parallel operation universal shaft, the shifting down mechanism comprises high and low reducing gear boxes and a jack clutch, one end of the high reducing gear box is provided with the emergency mechanism. The utility model provides an AC frequency conversion two-speed winch which utilizes the universal shaft to do parallel operation and the jack clutch for upshifting and downshifting, and solves the problems that the prior DC chain transmission multiple shifts winch has more equipments, heavy weight and frequent shifts, or the AC frequency conversion one-speed winch needs large power motor in order to reach hoisting capacity and speed of the equal degree DC winch or mechanical winch. The utility model can realize parallel operation of the two motors and shifts of high and low speed; the arranged emergency mechanism can improve maximum drilling string load when the main motors fail, thereby guaranteeing the safety of the drilling rigs and operators.
Description
Technical field:
A kind of AC frequency conversion two spotting hoists are specially adapted to the AC frequency conversion winch of oil and gas well drilling rig, belong to drilling machinery equipment manufacturing technology field.
Background technology:
At present, the electrical drawworks that is used for the drilling well rig mainly contains the many spotting hoists of direct current chain gear and exchanges gear transmission one spotting hoist; Many spotting hoists of direct current chain gear constructional feature is: adopt whole case structure, the multiaxis chain gear is by tooth embedding mechanism and pneumatic tyre clutch shift; This winch capacity is stronger, maximum lift speed is bigger, but structural volume is big, weight is bigger, need buty shifting when drilling operation, part high power DC chain gear many spotting hoists power and transmission need be docked chain not in same module during installation, setting accuracy is low, and driving efficiency is low; One grade of constructional feature than car of AC frequency conversion gear transmission is: winch has only drum shaft, be single-shaft configuration, motor is connected with gear reduction box through coupler, by gear reduction box deceleration rear driving drum axle, gear reduction box adopts independent lubricating system to gear, bearing is implemented positive lubrication, this mode is simple in structure, driving efficiency is higher, simultaneously can be with the permanent moment of torsion output of extremely low speed, and advantage such as motor brushless spark, but because no gearshift, the winch hoisting speed is regulated the speed governing that relies on alternating-current variable frequency motor fully, be the direct current that reaches same levels or the hoisting capacity and the speed of mechanical winch, need to be equipped with more powerful alternating-current variable frequency motor.
Summary of the invention:
The purpose of this utility model is the shortcoming at prior art, utilizes the advantage of AC-VFD-AC, provides a kind of by versatile spindle and car, is carried out single shaft gear transmission AC frequency conversion two spotting hoists of high, low speed gear shift by denture clutch.
The utility model is achieved in that a kind of AC frequency conversion two spotting hoists, form by driver train, deceleration shifting mechanism and emergency mechanism, driver train comprises two main motors, the mouth of two main motors be connected with two deceleration shifting mechanisms respectively and by and the car versatile spindle two main motors are carried out and car; Deceleration shifting mechanism comprises high-grade reducing gearbox, low-grade reducing gearbox and external gear shift denture clutch; External denture clutch is connected with the drum shaft two ends respectively, sets out by external denture clutch and realizes high low speed conversion; For purpose of safe operation, also be provided with an emergency mechanism at an end of high-grade reducing gearbox, constitute by an alternating-current variable frequency motor and retarder, retarder is connected with high-grade reducing gearbox by a power-transfer clutch;
When work, when the needs high tap position is worked, remove low regime clutch, the power process and the car versatile spindle of two main motors drive high-grade reducing gearbox, make winch in high tap position work; When needing low-grade location work, remove high-gear clutch, the power process and the car versatile spindle of two main motors drive low-grade reducing gearbox, make winch in low-grade location work; When main motor et out of order, start emergency mechanism, make winch promote maximum drill string weight by power-transfer clutch, emergency mechanism can also provide power to automatic bit feed simultaneously.
Advantage of the present utility model and beneficial effect: by and the car versatile spindle can realize two main motors effectively and car, compared with prior art, bearing power height, driving efficiency height; The application of denture clutch can realize the quick conversion of high, low speed gear, has simple in structure and practical characteristics simultaneously, particularly the emergency mechanism of She Zhiing can guarantee can promote maximum drill string weight when main motor et out of order, guarantees drilling tool and operator safety.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
The specific embodiment:
Is that example provides embodiment of the present utility model below in conjunction with accompanying drawing with two main motors: the utility model is by driver train, deceleration shifting mechanism and emergency mechanism are formed, driver train is made up of two main motors 7, two main motors 7 are variable-frequency motors, the mouth of two main motors 7 respectively with height, low-grade two reducing gearboxs 4 are connected with 1 input end, between two main motors 7, be provided with and car versatile spindle 8, two main motors 7 are carried out and car, according to the supporting requirement of drawworks horsepower, at height, low-grade two reducing gearboxs 4 and 1 input end bonded assembly master motor 7 also can be main motors, when adopting a main motor, main motor can be arranged on height, any end in low two reducing gearboxs 4 and 1, by also 8 connections of car versatile spindle are high, low-grade two reducing gearboxs 4 and 1, also can be arranged between two reducing gearboxs, by also 8 connections of car versatile spindle are high, low two reducing gearboxs 4 and 1; Deceleration shifting mechanism comprises high-grade reducing gearbox 4, low-grade reducing gearbox 1 and two denture clutchs 2, high and low shelves reducing gearbox 4 and 1 is arranged on the both sides of winch drum 3, two denture clutchs 2 be separately positioned on high and low shelves reducing gearbox 4 and 1 and winch drum 3 between; For purpose of safe operation, also be provided with an emergency mechanism 6, comprise an emergent motor and retarder, emergency mechanism is connected by another root input shaft of power-transfer clutch 5 and reducing gearbox, emergency mechanism 6 can be provided with one, also can be provided with two, emergency mechanism 6 is connected with high and low shelves reducing gearbox by power-transfer clutch.
When operation, when the needs high tap position is worked, remove low-grade reducing gearbox 1, the power process and the car versatile spindle 8 of 4, two the main motors 7 of high-grade reducing gearbox that close drive high-grade reducing gearbox 4, make winch in high tap position work; When needing low-grade location work, remove high-grade reducing gearbox 4, the power process and the car versatile spindle 8 of 1, two the main motor 7 of low-grade reducing gearbox that closes drive low-grade reducing gearbox 1, make winch in low-grade location work; When main motor 7 et out of orders, start emergency mechanism 6, drive high-grade reducing gearbox by power-transfer clutch 5, reach the purpose that promotes maximum drill string weight, guarantee downhole safety, emergency mechanism 6 also provides power for automatic bit feed simultaneously.
Claims (4)
1. AC frequency conversion two spotting hoists comprise driver train, deceleration gearshift and three parts of emergency mechanism, it is characterized in that:
A, described driver train are made of two main motors, and the mouth of two main motors is connected with the input end of two reducing gearboxs of high and low shelves respectively, is provided with between two main motors and the car versatile spindle;
B, described deceleration gearshift comprise high-grade reducing gearbox, low-grade reducing gearbox and two denture clutchs, high and low shelves reducing gearbox is arranged on the both sides of winch drum, and two denture clutchs are separately positioned between high and low shelves reducing gearbox and the winch drum;
C, emergency mechanism comprise emergent motor and retarder, and emergency mechanism is connected by another root input shaft of power-transfer clutch and reducing gearbox.
2. AC frequency conversion two spotting hoists according to claim 1, it is characterized in that: at two main motors of high and low two reducing gearbox input end bonded assemblys of shelves also can be a main motor, be arranged on an end of any one reducing gearbox in high and low two retarders, by and the car versatile spindle connect two reducing gearboxs of high and low shelves.
3. AC frequency conversion two spotting hoists according to claim 1 is characterized in that: described main motor is a variable-frequency motor.
4. AC frequency conversion two spotting hoists according to claim 1 is characterized in that: the emergency mechanism of setting also can be two, is connected with high and low shelves reducing gearbox by power-transfer clutch respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200797654U CN201052952Y (en) | 2007-05-31 | 2007-05-31 | Alternating current frequency conversion two-shift winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200797654U CN201052952Y (en) | 2007-05-31 | 2007-05-31 | Alternating current frequency conversion two-shift winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201052952Y true CN201052952Y (en) | 2008-04-30 |
Family
ID=39392618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200797654U Expired - Fee Related CN201052952Y (en) | 2007-05-31 | 2007-05-31 | Alternating current frequency conversion two-shift winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201052952Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701093A (en) * | 2012-06-11 | 2012-10-03 | 中国石油化工集团公司 | Mechanically-driven double-gear winch for casing drilling machine |
| CN103569886A (en) * | 2013-10-30 | 2014-02-12 | 宝鸡石油机械有限责任公司 | Drilling winch adopting built-in gears for variable transmission |
| CN110957890A (en) * | 2020-01-06 | 2020-04-03 | 嵊州航羽电子有限公司 | AC-DC converter capable of changing power frequency |
-
2007
- 2007-05-31 CN CNU2007200797654U patent/CN201052952Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701093A (en) * | 2012-06-11 | 2012-10-03 | 中国石油化工集团公司 | Mechanically-driven double-gear winch for casing drilling machine |
| CN102701093B (en) * | 2012-06-11 | 2015-07-08 | 中石化石油工程机械有限公司 | Mechanically-driven double-gear winch for casing drilling machine |
| CN103569886A (en) * | 2013-10-30 | 2014-02-12 | 宝鸡石油机械有限责任公司 | Drilling winch adopting built-in gears for variable transmission |
| CN103569886B (en) * | 2013-10-30 | 2015-11-18 | 宝鸡石油机械有限责任公司 | Internal speed-changing well drilling hoist |
| CN110957890A (en) * | 2020-01-06 | 2020-04-03 | 嵊州航羽电子有限公司 | AC-DC converter capable of changing power frequency |
| CN110957890B (en) * | 2020-01-06 | 2020-11-24 | 深圳华菱电精密科技有限公司 | AC-DC converter capable of changing power frequency |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080430 Termination date: 20150531 |
|
| EXPY | Termination of patent right or utility model |