CN202832309U - Coiled pipe injection head drive device - Google Patents
Coiled pipe injection head drive device Download PDFInfo
- Publication number
- CN202832309U CN202832309U CN 201220296936 CN201220296936U CN202832309U CN 202832309 U CN202832309 U CN 202832309U CN 201220296936 CN201220296936 CN 201220296936 CN 201220296936 U CN201220296936 U CN 201220296936U CN 202832309 U CN202832309 U CN 202832309U
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- CN
- China
- Prior art keywords
- injection head
- sprocket shaft
- hydraulic motor
- planetary reducer
- bearing support
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model discloses a coiled pipe injection head drive device, and belongs to the field of petroleum. The device comprises two sets of hydraulic motor drive mechanisms which are arranged on an injection head box body. Each set of hydraulic motor drive mechanism comprises a hydraulic motor, a hydraulic braking device, a connecting disc, a bearing seat, a planetary gear reducer, a bearing, a sprocket shaft and a central shaft. Each hydraulic motor and each planetary gear reducer are respectively arranged on two sides of the injection head box body. Each sprocket shaft is a hollow shaft. Each sprocket shaft penetrates through each central shaft. One end of each central shaft is connected with an output end of each hydraulic motor. The other end of each central shaft is connected with an input end of each planetary gear reducer. The coiled pipe injection head drive device has the advantages of being compact and symmetric in structure, good in balance performance and easy to lift and mount, working is easy, and the coiled pipe injection head drive device further has the advantages of being high in drive efficiency and good in low-speed stability.
Description
Technical field
The utility model relates to continuous-tube drilling well, well logging and workover treatment field, particularly a kind of continuous tube injection head drive unit.
Background technology
Continuous oil pipe operation equipment is that a kind of hydraulically powered workover rig namely can be used for offshore platform, also can be used for the oil field, land.Continuous oil pipe operation equipment mainly is comprised of five parts such as injection head (driving guiding device), cylinder, coiled tubing, operation room, power source, spraying-preventing systems.
Wherein, injection head (driving guiding device) is with coiled tubing G.I.H or the device that oil pipe is proposed in the well.The continuous tube injection head drive unit mainly contains two kinds of structures at present.
Mode one
Adopt low-speed big torque motor directly to drive, in this kind type of drive, usually motor is two grades of change discharge capacities, and in order to satisfy the requirement of injection head maximum hoist capacity, the discharge capacity of motor is selected by the maximum requirement, the coupling of hydraulic pump need to satisfy the maximal rate requirement of injection head, cause pump delivery larger, thereby under normal operation, produce very large power dissipation, yet, along with the increasing of injection head ability, be difficult to choose suitable low-speed big torque motor.
Mode two
Adopt hydraulic motor and epicyclic gearbox to drive, in this kind type of drive, hydraulic motor and epicyclic gearbox are arranged on the same side of injection head, cause structure asymmetric, and balance is bad, so that hard problem is installed in lifting and operation.
The utility model content
Be arranged on the same side of injection head in order to overcome hydraulic motor and epicyclic gearbox in the prior art, cause structure asymmetric, cause balance bad, so that hard problem is installed in lifting and operation, the utility model embodiment provides a kind of continuous tube injection head drive unit.Described technical scheme is as follows:
A kind of continuous tube injection head drive unit, comprise and be arranged on the cover of two on injection head casing fluid motor-driven mechanism, every cover fluid motor-driven mechanism includes hydraulic motor, fluid brake, terminal pad, bearing support, planetary reducer, bearing, sprocket shaft and central axis, described hydraulic motor links to each other with described fluid brake and is installed on the described terminal pad, described terminal pad is fixed on the side of described injection head casing by described bearing support, described bearing is installed on the described bearing support, described planetary reducer is installed in the opposite side of described injection head casing, described sprocket shaft is arranged between described bearing support and the described planetary reducer, one end of described sprocket shaft is installed on the described bearing support by described bearing, the other end of described sprocket shaft is fixed on the output shell of described planetary reducer, so that described sprocket shaft is with the output rotation of described planetary reducer, described sprocket shaft is hollow shaft, described central axis is passed by described sprocket shaft, one end of described central axis links to each other with the output of described hydraulic motor, and the other end of described central axis is connected with the input of described planetary reducer.
Particularly, described fluid brake is realized the disconnected brake of pressing by the water brake piece.
The beneficial effect that the technical scheme that the utility model embodiment provides is brought is: compared to existing technology, the utility model embodiment is by being installed in injection head casing both sides with hydraulic motor and planetary reducer, so that compact conformation, symmetry, balance is good, so that lifting and operation are installed easily; The utility model embodiment has adopted hydraulic motor and planetary reducer, mode one low-speed big torque motor than prior art drives, the hydraulic pump of coupling can be selected a little discharge capacity grade, so that the power of hydraulic pump has obtained more effectively utilizing, and low-speed performance is better, therefore it is high that the utility model embodiment also has a drive efficiency, the advantage that low-speed stability is good.
Description of drawings
In order to be illustrated more clearly in the technical scheme among the utility model embodiment, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the continuous tube injection head drive unit that provides among the utility model embodiment 1.
Each symbolic representation implication is as follows among the figure:
1 hydraulic motor, 2 fluid brakes, 3 terminal pads, 4 bearing supports, 5 bearings, 6 central axiss, 7 sprocket shafts, 8 injection head casings, 9 planetary reducers,
10 fluid motor-driven mechanisms.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
As shown in Figure 1, the utility model embodiment provides a kind of continuous tube injection head drive unit, comprise and be arranged on the cover of two on the injection head casing 8 fluid motor-driven mechanism 10, every cover fluid motor-driven mechanism 10 includes hydraulic motor 1, fluid brake 2, terminal pad 3, bearing support 4, planetary reducer 9, bearing 5, sprocket shaft 7 and central axis 6, described hydraulic motor 1 links to each other with described fluid brake 2 and is installed on the described terminal pad 3, described terminal pad 3 is fixed on the side of described injection head casing 8 by described bearing support 4, described bearing 5 is installed on the described bearing support 4, described planetary reducer 9 is installed in the opposite side of described injection head casing 8, described sprocket shaft 7 is arranged between described bearing support 4 and the described planetary reducer 9, one end of described sprocket shaft 7 is installed on the described bearing support 4 by described bearing 5, the other end of described sprocket shaft 7 is fixed on the output shell of described planetary reducer 9, so that described sprocket shaft 7 is with the output rotation of described planetary reducer 9, described sprocket shaft 7 is hollow shaft, described central axis 6 is passed by described sprocket shaft 7, one end of described central axis 6 links to each other with the output of described hydraulic motor 1, and the other end of described central axis 6 is connected with the input of described planetary reducer 9.
The operating principle of the utility model embodiment: as shown in Figure 1, during injection head work, hydraulic control system supplies with hydraulic pressure for two hydraulic motors 1, its power through central axis 6 pass to planetary reducer 9 slow down increase square after, drive two hollow sprocket shaft 7 reverse rotations, thereby the drive chain movement realizes removing continuous-tube in oil well.Wherein, when hydraulic motor 1 work, fluid brake 2 is supplied with hydraulic pressure automatically, and brake discharges, and hydraulic motor rotates; When shutting down, fluid brake 2 automatic disconnection hydraulic pressure, skidding.
The utility model embodiment has removed the gear that injection head commonly used uses in the prior art, and the frictional force by sprocket shaft 7 is used for realizing the synchronous of chain, simplifies the structure.
The utility model embodiment has carried out the architecture advances of planetary reducer, input and output are placed on homonymy, fixedly mount by housing, reduce the physical dimension of injection head, satisfying reducer and motor installs in injection head casing both sides, by hydraulic motor 1 and planetary reducer 9 are installed in injection head casing 8 both sides, so that whole injection header structure is compact, simplification, be conducive to reduce the appearance and size of injection head, adopt above-mentioned symmetrical structure, the injection head balance is good, so that the operation installation steadily, conveniently, lifting and operation are installed easy.
The utility model embodiment has adopted hydraulic motor and planetary reducer, mode one low-speed big torque motor compared to existing technology drives, the hydraulic pump of coupling can be selected a little discharge capacity grade, so that the power of hydraulic pump has obtained more effectively utilizing, improve effective utilization of hydraulic pump power, can satisfy simultaneously maximum hoist capacity and maximal rate requirement, satisfy the requirement of low-speed stable performance, therefore it is high that the utility model embodiment also has a drive efficiency, the advantage that low-speed stability is good.
Particularly, as preferably, in the present embodiment, described fluid brake 2 is realized the disconnected brake of pressing by the water brake piece.
Particularly, as preferably, in the present embodiment, described hydraulic motor 1 and described fluid brake 2 are connected into one and are installed on the terminal pad 3.
Particularly, as preferably, in the present embodiment, sprocket shaft 7 is provided with centre bore, and described central axis 6 passes through from the centre bore of sprocket shaft 7.
The above only is preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. continuous tube injection head drive unit, it is characterized in that, comprise and be arranged on the cover of two on injection head casing fluid motor-driven mechanism, every cover fluid motor-driven mechanism includes hydraulic motor, fluid brake, terminal pad, bearing support, planetary reducer, bearing, sprocket shaft and central axis, described hydraulic motor links to each other with described fluid brake and is installed on the described terminal pad, described terminal pad is fixed on the side of described injection head casing by described bearing support, described bearing is installed on the described bearing support, described planetary reducer is installed in the opposite side of described injection head casing, described sprocket shaft is arranged between described bearing support and the described planetary reducer, one end of described sprocket shaft is installed on the described bearing support by described bearing, the other end of described sprocket shaft is fixed on the output shell of described planetary reducer, so that described sprocket shaft is with the output rotation of described planetary reducer, described sprocket shaft is hollow shaft, described central axis is passed by described sprocket shaft, one end of described central axis links to each other with the output of described hydraulic motor, and the other end of described central axis is connected with the input of described planetary reducer.
2. continuous tube injection head drive unit as claimed in claim 1 is characterized in that, described fluid brake is realized the disconnected brake of pressing by the water brake piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296936 CN202832309U (en) | 2012-06-19 | 2012-06-19 | Coiled pipe injection head drive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220296936 CN202832309U (en) | 2012-06-19 | 2012-06-19 | Coiled pipe injection head drive device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202832309U true CN202832309U (en) | 2013-03-27 |
Family
ID=47944041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220296936 Withdrawn - After Issue CN202832309U (en) | 2012-06-19 | 2012-06-19 | Coiled pipe injection head drive device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202832309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510891A (en) * | 2012-06-19 | 2014-01-15 | 中国石油天然气集团公司 | Injection head driving device for coiled tubing |
| WO2018053399A1 (en) * | 2016-09-19 | 2018-03-22 | Premier Coil Solutions, Inc. | Improved coiled tubing injector driveline |
-
2012
- 2012-06-19 CN CN 201220296936 patent/CN202832309U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510891A (en) * | 2012-06-19 | 2014-01-15 | 中国石油天然气集团公司 | Injection head driving device for coiled tubing |
| CN103510891B (en) * | 2012-06-19 | 2016-06-08 | 中国石油天然气集团公司 | A kind of connecting pipes injection head driving device |
| WO2018053399A1 (en) * | 2016-09-19 | 2018-03-22 | Premier Coil Solutions, Inc. | Improved coiled tubing injector driveline |
| US10422193B2 (en) | 2016-09-19 | 2019-09-24 | Premier Coil Solutions, Inc. | Coiled tubing injector driveline |
| EP3516154A4 (en) * | 2016-09-19 | 2020-04-29 | Premier Coil Solutions, Inc. | Improved coiled tubing injector driveline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130327 Effective date of abandoning: 20160608 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |