CN204592202U - A kind of Multi-stage precise transmission extending means - Google Patents
A kind of Multi-stage precise transmission extending means Download PDFInfo
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- CN204592202U CN204592202U CN201420857844.3U CN201420857844U CN204592202U CN 204592202 U CN204592202 U CN 204592202U CN 201420857844 U CN201420857844 U CN 201420857844U CN 204592202 U CN204592202 U CN 204592202U
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Abstract
The utility model relates to a kind of Multi-stage precise transmission extending means, comprises from nested successively outside to inside fixed muffle, sleeve A, middle sleeve, inner sleeve; Also comprise driving mechanism; Described driving mechanism comprises primary transmission mechanism and secondary drive mechanism; Described primary transmission mechanism comprises the telescopic cylinder be arranged between fixed muffle and sleeve A; Telescopic cylinder one end and sleeve A fix, and the other end and fixed muffle are fixed; Described secondary drive mechanism comprises the motor be arranged on described middle sleeve, and the output shaft of described motor drives middle sleeve and inner sleeve to move along sleeve A axial direction.The utility model can be applied to installing space narrow and small and automatically detect, detection range needed for maintenance of equipment is the several-fold situation of its installing space, can also be applied to other place needing remote more piece synchronization telescope and field.
Description
Technical field
The present invention relates to nuclear power Automatic Measurement Technique field, be specifically related to a kind of Multi-stage precise transmission extending means.
Background technique
In the industrial production, pipeline and the container application of various different size are more and more extensive, pipeline and container easily produce the defects such as bubble, crackle, slag inclusion after metal solder, poor weld easily produces corrosion at fault location, corrosion slowly expands makes pipeline and container inner medium leak, and pipeline and container are easily aging after using for a long time.Thus affect industrial production, even severe safety accident can be there is, therefore regularly maintenance and inspection must be carried out to pipeline and container.
According to coherence check code requirement, in order to realize various Nuclear piping and container automatic inspection and maintenance, ensure that automatic inspection and maintenance of equipment complete remote Multi-stage precise and stretch in relatively narrow installation space, this Multi-stage precise extending means of ad hoc meter.
Current multi-stage expansion mechanism mostly adopts single-unit repeatedly to stretch or adopts rope drive to stretch, and repeatedly fore and aft motion process is discontinuous for single-unit, and rope drive fore and aft motion process is continuous, but starts and stop in a flash, and rope is flexible, and transmission accuracy is not high.
Summary of the invention
The object of this invention is to provide a kind of Multi-stage precise extending means, be applied to installing space narrow and small and automatically detect, detection range needed for maintenance of equipment is the several-fold situation of its installing space, can also be applied to other place needing remote more piece synchronization telescope and field.
The present invention is achieved in that a kind of Multi-stage precise transmission extending means, comprises from nested successively outside to inside fixed muffle, sleeve A, middle sleeve, inner sleeve;
Sleeve A outer wall coordinates with rolling between fixed muffle inwall; Between sleeve A outer wall and fixed muffle inwall, axial limiting block is also housed, restriction sleeve A skids off fixed muffle;
It is inner that middle sleeve arranges sleeve A, is slidably matched between the inwall of its outer wall and sleeve A; Axial limiting block is housed between sleeve A and middle sleeve, and restriction middle sleeve skids off sleeve A;
Inner sleeve arranges middle sleeve inside, is slidably matched between its outer wall and inwall of middle sleeve; Axial limiting block is housed between inner sleeve and middle sleeve, and restriction inner sleeve skids off middle sleeve;
Also comprise driving mechanism; Described driving mechanism comprises primary transmission mechanism and secondary drive mechanism;
Described primary transmission mechanism comprises the telescopic cylinder be arranged between fixed muffle and sleeve A; Telescopic cylinder one end and sleeve A fix, and the other end and fixed muffle are fixed;
Described secondary drive mechanism comprises the motor be arranged on described middle sleeve, and the output shaft of described motor drives middle sleeve and inner sleeve to move along sleeve A axial direction.
Described secondary drive mechanism also comprises gear pair B, gear pair A, gear, bevel gear pair, tooth bar, leading screw A, nut seat;
Tooth bar is fixed on sleeve A inwall, and its bearing of trend is axially consistent with sleeve A; Leading screw A is supported on middle sleeve inwall and rotatable, and its bearing of trend is axially consistent with sleeve A; Nut seat is fixed on inner sleeve outer wall; Leading screw A coordinates with nut seat screw pair;
Gear pair B, gear pair A, gear, bevel gear pair are all fixed on middle sleeve; The output shaft driving gear wheel set B of motor moves; Gear pair B drives leading screw A to rotate; Leading screw A driving gear wheel set A moves; Gear pair A drives bevel gear pair to rotate; Bevel gear pair actuation gear rotates; Wheel and rack engages.
Described secondary drive mechanism also comprises gear pair B, leading screw A, leading screw B, nut B, gear B and nut seat B;
Described leading screw B fixed muffle A inwall, its bearing of trend and quill are to consistent; Nut B is enclosed within screw mandrel B, and nut seat B is enclosed within nut B; Nut B is axial limiting in nut seat B, and circumference is rotated;
Nut seat B and middle sleeve are fixed; The output shaft driving gear wheel set B of motor moves; Gear pair B drives leading screw A to rotate; Gear pair B actuation gear B moves; Gear B drive nut B rotates.
Also comprise assist retraction assembly, it comprises constant force reel, wire rope, pulley A, pulley B;
Constant force reel, pulley A are fixed on the outside of fixed muffle, and pulley A is arranged in middle sleeve; Wire rope one end and constant force reel are fixed, and the other end walks around pulley A, pulley B is connected with middle sleeve.
Also comprise assist retraction assembly, it comprises wire rope, around constant force reel; Wire rope is connected with middle sleeve with sleeve A through fixed muffle around constant force reel.
Beneficial effect of the present invention:
(1) gear clockwise and anticlockwise of the present invention realizes middle sleeve relative sleeve A and stretches out vertically and withdrawal, finally ensures inner sleeve phase centring spool, middle sleeve relative sleeve A moves at telescopic boom axial direction by identical speed sync;
(2) leading screw of the present invention is consistent with leading screw B helical pitch, namely realizes inner sleeve phase centring spool, and the synchronized output of middle sleeve relative sleeve A, guarantees the multistage linking of device;
(3) in constant force nest spring device of the present invention, expansion device is returned to contraction state by wire rope pulley group, if expansion device self cannot be regained by constant force wind spring, wire rope can be hooked, it is made to retract by force, finally make extending means return to contraction state, thus guarantee the reliability of device.
Accompanying drawing explanation
Fig. 1 is a kind of Multi-stage precise transmission of the present invention extending means embodiment one schematic diagram;
Fig. 2 be in Fig. 1 A-A to sectional view;
Fig. 3 is a kind of Multi-stage precise transmission of the present invention extending means embodiment two schematic diagram;
Fig. 4 is a kind of Multi-stage precise transmission of the present invention extending means using state figure;
Fig. 5 is that a kind of Multi-stage precise transmission of the present invention extending means stretches out phase diagram;
In figure: 1, fixed muffle; 2, constant force reel; 3, wire rope; 4, sleeve A; 5, telescopic cylinder; 6, middle sleeve; 7, leading screw A; 8, inner sleeve; 9, nut seat; 10, tooth bar; 11, pulley A; 12, bevel gear pair; 13, gear; 14, gear pair A; 15, gear pair B; 16, motor; 17, pulley B; 18, nut seat B; 19, nut B; 20, gear B; 21 leading screw B; 22-pressurized container scanning equipment; 23-ultrasonic scan instrument.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in detail:
Multi-stage precise transmission extending means of the present invention comprises from nested successively outside to inside fixed muffle 1, sleeve A4, middle sleeve 6, inner sleeve 8;
Fixed muffle 1 one end and outer pressure vessel scanning equipment 22 are fixed; Inner sleeve 8 outer end is connected with ultrasonic scan instrument 23;
Sleeve A4 outer wall is equipped with some guide rails; Fixed muffle 1 inwall is provided with some rollers; Some guide rail outer surfaces and some roller outer surfaces tangent; Axial limiting block is housed between sleeve A4 and fixed muffle 1, and this axial limiting block restriction sleeve A4 skids off fixed muffle 1;
It is inner that middle sleeve 6 arranges sleeve A4, coordinated between its outer wall with the inwall of sleeve A4 by slide block guide rail; Axial limiting block is housed between sleeve A4 and middle sleeve 6, and this axial limiting block restriction middle sleeve 6 skids off sleeve A4;
It is inner that inner sleeve 8 arranges middle sleeve 6, coordinated between its outer wall with the inwall of middle sleeve 6 by slide block guide rail; Axial limiting block is housed between inner sleeve 8 and middle sleeve 6, and this axial limiting block restriction inner sleeve 8 skids off middle sleeve 6;
Also comprise driving mechanism, it comprises primary transmission assembly, and it is the telescopic cylinder 5 be arranged between fixed muffle 1 and sleeve A4; Telescopic cylinder 5 one end and sleeve A4 fix, and the other end and fixed muffle 1 are fixed;
Also comprise secondary transmission assembly;
Embodiment one
Described secondary transmission assembly comprises motor 16, gear pair B15, gear pair A14, gear 13, bevel gear pair 12, tooth bar 10, leading screw A7, nut seat 9;
Tooth bar 10 is fixed on sleeve A4 inwall, and its bearing of trend is axially consistent with sleeve A4; Leading screw A7 is supported on middle sleeve 6 inwall and rotatable, and its bearing of trend is axially consistent with sleeve A4; Nut seat 9 is fixed on inner sleeve 8 outer wall; Leading screw A7 coordinates with nut seat 9 screw pair;
Motor 16, gear pair B15, gear pair A14, gear 13, bevel gear pair 12 are all fixed on middle sleeve 6;
The output shaft driving gear wheel set B15 of motor 16 moves; Gear pair B15 drives leading screw A7 to rotate; Leading screw A7 driving gear wheel set A14 moves; Gear pair A14 drives bevel gear pair 12 to rotate; Bevel gear pair 12 actuation gear 13 rotates; Gear 13 engages with tooth bar 10;
Embodiment two
Be with the difference of embodiment one, the assembly of the drive spool A4 motion that described secondary transmission assembly is not made up of bevel gear pair 12, gear 13, tooth bar 10, gear pair A14; Change the driven unit comprising leading screw B21, nut B19, gear B 20 and nut seat B18 and form into;
Described leading screw B21 fixed muffle A4 inwall, its bearing of trend and quill are to consistent; Nut B 19 is enclosed within screw mandrel B21, and nut seat B18 is enclosed within nut B19; Nut B19 is axial limiting in nut seat B18, and circumference is rotated;
Nut seat B18 and middle sleeve 6 are fixed;
The output shaft driving gear wheel set B15 of motor 16 moves; Gear pair B15 drives leading screw A7 to rotate; Gear pair B15 actuation gear B20 moves; Gear B 20 drive nut B19 rotates.
Also comprise assist retraction assembly, it comprises constant force reel 2, wire rope 3, pulley A11, pulley B17;
Constant force reel 2, pulley A11 are fixed on the outside of fixed muffle 1, and pulley B17 is arranged in middle sleeve 6; Wire rope 3 one end and constant force reel 2 are fixed, and the other end walks around pulley A11, pulley B 17 is connected with middle sleeve 6;
Can also be directly be connected with middle sleeve 6 with sleeve A4 through fixed muffle 1 around constant force reel 2 by wire rope 3.
As shown in Figure 1, this extending means fixed muffle 1, sleeve A4, middle sleeve 6, inner sleeve 8 all adopt linear rail spacing, only allow axial relative movement between sleeve after spacing.During scanning, fixed muffle is fixed on scanning equipment running shaft, telescopic cylinder 5 one end is fixed on fixed muffle, the other end is fixed on sleeve A, utilize telescopic cylinder 5 by sleeve A4, middle sleeve 6, component such as inner sleeve 8 grade stretch out together, after telescopic cylinder telescoping instruction completes, motor 16 and leading screw A7, gear 13, bevel gear pair 12, gear pair A14 is all fixed on middle sleeve, nut seat 9 is fixed on inner sleeve, tooth bar 10 is fixed on sleeve A, motor 16 clockwise and anticlockwise can drive leading screw A7 and gear 13 to rotate, leading screw A7 clockwise and anticlockwise can realize the axial at the uniform velocity fore and aft motion of inner sleeve 8 phase centring spool 6, leading screw A7 rotation driven gear secondary A14, bevel gear pair 12 and gear 13, tooth bar 10 works simultaneously, finally realize inner sleeve 8 and middle sleeve 6, middle sleeve 6 and the synchronized continuous and adjustable of sleeve A4.
As shown in Figure 3, replace rack pinion with feed screw nut, leading screw B21 is fixed on sleeve A, nut B19, gear B 20, nut seat B18 be fixed on middle sleeve, now, leading screw rotarily drives gear B 20 and rotates, and namely nut B19 rotates, and finally realizes middle sleeve straight line motion in sleeve A4.Wherein leading screw A7 and leading screw B21 can utilize left-handed and dextrorotation rotation direction to control often to save sleeve moving direction, as long as ensure that leading screw B21 is consistent with the rotational velocity of nut B19, B21 is consistent with nut B19 helical pitch, namely realize inner sleeve 8 phase centring spool 6, middle sleeve 6 relative sleeve A4 synchronous uniform velocity exports.
When scanning pallet is in working state, if now telescope motor breaks down, by wire rope pulley group in constant force nest spring device, expansion device can be returned to contraction state, if expansion device self cannot be regained by constant force wind spring, can utilize long rod tool from Fig. 3, be designated D and hook wire rope, make it retract by force, finally make extending means return to contraction state.
Claims (5)
1. a Multi-stage precise transmission extending means, is characterized in that: comprise from nested successively outside to inside fixed muffle, sleeve A, middle sleeve, inner sleeve;
Sleeve A outer wall coordinates with rolling between fixed muffle inwall; Between sleeve A outer wall and fixed muffle inwall, axial limiting block is also housed, restriction sleeve A skids off fixed muffle;
It is inner that middle sleeve arranges sleeve A, is slidably matched between the inwall of its outer wall and sleeve A; Axial limiting block is housed between sleeve A and middle sleeve, and restriction middle sleeve skids off sleeve A;
Inner sleeve arranges middle sleeve inside, is slidably matched between its outer wall and inwall of middle sleeve; Axial limiting block is housed between inner sleeve and middle sleeve, and restriction inner sleeve skids off middle sleeve;
Also comprise driving mechanism; Described driving mechanism comprises primary transmission mechanism and secondary drive mechanism;
Described primary transmission mechanism comprises the telescopic cylinder be arranged between fixed muffle and sleeve A; Telescopic cylinder one end and sleeve A fix, and the other end and fixed muffle are fixed;
Described secondary drive mechanism comprises the motor be arranged on described middle sleeve, and the output shaft of described motor drives middle sleeve and inner sleeve to move along sleeve A axial direction.
2. according to Multi-stage precise transmission extending means according to claim 1, it is characterized in that: described secondary drive mechanism also comprises gear pair B, gear pair A, gear, bevel gear pair, tooth bar, leading screw A, nut seat;
Tooth bar is fixed on sleeve A inwall, and its bearing of trend is axially consistent with sleeve A; Leading screw A is supported on middle sleeve inwall and rotatable, and its bearing of trend is axially consistent with sleeve A; Nut seat is fixed on inner sleeve outer wall; Leading screw A coordinates with nut seat screw pair;
Gear pair B, gear pair A, gear, bevel gear pair are all fixed on middle sleeve; The output shaft driving gear wheel set B of motor moves; Gear pair B drives leading screw A to rotate; Leading screw A driving gear wheel set A moves; Gear pair A drives bevel gear pair to rotate; Bevel gear pair actuation gear rotates; Wheel and rack engages.
3. according to Multi-stage precise transmission extending means according to claim 1, it is characterized in that: described secondary drive mechanism also comprises gear pair B, leading screw A, leading screw B, nut B, gear B and nut seat B;
Described leading screw B fixed muffle A inwall, its bearing of trend and quill are to consistent; Nut B is enclosed within screw mandrel B, and nut seat B is enclosed within nut B; Nut B is axial limiting in nut seat B, and circumference is rotated;
Nut seat B and middle sleeve are fixed; The output shaft driving gear wheel set B of motor moves; Gear pair B drives leading screw A to rotate; Gear pair B actuation gear B moves; Gear B drive nut B rotates.
4. according to Multi-stage precise transmission extending means according to claim 1, it is characterized in that: also comprise assist retraction assembly, it comprises constant force reel, wire rope, pulley A, pulley B;
Constant force reel, pulley A are fixed on the outside of fixed muffle, and pulley B is arranged in middle sleeve; Wire rope one end and constant force reel are fixed, and the other end walks around pulley A, pulley B is connected with middle sleeve.
5. according to Multi-stage precise transmission extending means according to claim 1, it is characterized in that: also comprise assist retraction assembly, it comprises wire rope, around constant force reel; Wire rope is connected with middle sleeve with sleeve A through fixed muffle around constant force reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857844.3U CN204592202U (en) | 2014-12-30 | 2014-12-30 | A kind of Multi-stage precise transmission extending means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857844.3U CN204592202U (en) | 2014-12-30 | 2014-12-30 | A kind of Multi-stage precise transmission extending means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204592202U true CN204592202U (en) | 2015-08-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857844.3U Withdrawn - After Issue CN204592202U (en) | 2014-12-30 | 2014-12-30 | A kind of Multi-stage precise transmission extending means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204592202U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805265A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Multistage precise transmission telescopic mechanism |
| CN108194608A (en) * | 2017-12-27 | 2018-06-22 | 苏州科爱佳自动化科技有限公司 | A kind of adjustable running equipment of high-precision |
| CN108194607A (en) * | 2017-12-27 | 2018-06-22 | 苏州科爱佳自动化科技有限公司 | A kind of high performance automatic driving device |
| CN109826919A (en) * | 2019-03-27 | 2019-05-31 | 北京电影学院 | A kind of screw nut driven mechanism, self-adjusting telescoping mechanism and photography mechanical arm |
| CN111811371A (en) * | 2020-07-23 | 2020-10-23 | 中国地质大学（北京） | Lake bottom sludge thickness detection device |
-
2014
- 2014-12-30 CN CN201420857844.3U patent/CN204592202U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105805265A (en) * | 2014-12-30 | 2016-07-27 | 中核武汉核电运行技术股份有限公司 | Multistage precise transmission telescopic mechanism |
| CN105805265B (en) * | 2014-12-30 | 2019-09-17 | 中核武汉核电运行技术股份有限公司 | A kind of Multi-stage precise transmission telescoping mechanism |
| CN108194608A (en) * | 2017-12-27 | 2018-06-22 | 苏州科爱佳自动化科技有限公司 | A kind of adjustable running equipment of high-precision |
| CN108194607A (en) * | 2017-12-27 | 2018-06-22 | 苏州科爱佳自动化科技有限公司 | A kind of high performance automatic driving device |
| CN109826919A (en) * | 2019-03-27 | 2019-05-31 | 北京电影学院 | A kind of screw nut driven mechanism, self-adjusting telescoping mechanism and photography mechanical arm |
| CN111811371A (en) * | 2020-07-23 | 2020-10-23 | 中国地质大学（北京） | Lake bottom sludge thickness detection device |
| CN111811371B (en) * | 2020-07-23 | 2021-10-29 | 中国地质大学（北京） | Lake bottom sludge thickness detection device |
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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: 20150826 Effective date of abandoning: 20190917 |
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| AV01 | Patent right actively abandoned |