CN110145580A - A kind of gap nut structure that disappears with component health status on-Line Monitor Device - Google Patents
A kind of gap nut structure that disappears with component health status on-Line Monitor Device Download PDFInfo
- Publication number
- CN110145580A CN110145580A CN201910567264.8A CN201910567264A CN110145580A CN 110145580 A CN110145580 A CN 110145580A CN 201910567264 A CN201910567264 A CN 201910567264A CN 110145580 A CN110145580 A CN 110145580A
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- Prior art keywords
- nut
- disappears
- shell
- health status
- torsional spring
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- 230000003862 health status Effects 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 9
- 239000000314 lubricant Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 210000003734 kidney Anatomy 0.000 claims description 4
- 208000007623 Lordosis Diseases 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000013332 literature search Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
- F16H25/2006—Screw mechanisms with arrangements for taking up backlash with more than one nut or with nuts consisting of more than one bearing part
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/24—Elements essential to such mechanisms, e.g. screws, nuts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/01—Monitoring wear or stress of gearing elements, e.g. for triggering maintenance
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/045—Lubricant storage reservoirs, e.g. reservoirs in addition to a gear sump for collecting lubricant in the upper part of a gear case
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/048—Type of gearings to be lubricated, cooled or heated
- F16H57/0497—Screw mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
- F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
- F16H25/20—Screw mechanisms
- F16H25/2003—Screw mechanisms with arrangements for taking up backlash
- F16H2025/2012—Screw mechanisms with arrangements for taking up backlash using a spring member creating rotary torque for counter rotating the two nuts, e.g. a torsion bar
Abstract
The invention discloses a kind of gap nut structures that disappears with component health status on-Line Monitor Device, including shell, front nut, back nut and torsional spring, it is characterized in that, being additionally provided with torque adjusting set, pushing nut, intermediate link block, pull pressure sensor, angular transducer and spacing card.The present invention disappears gap nut structure by reasonably planning the layout and assembling completed in small spatial dimension to monitoring of structures, monitoring including monitoring and rotation angle to torsional spring torsion, realize the on-line monitoring for offseting gap nut health status, and the present invention gap nut structure that disappears is small in size, stabilized structure, stable, the easy to implement and manufacturing is suitble to promote the use of.
Description
Technical field
The present invention relates to field of automation technology, specially a kind of gap that disappears with component health status on-Line Monitor Device
Nut structure.
Background technique
In training equipment and field of industrial manufacturing, the feed screw apparatus equipped with the gap nut that disappears is widely used.The gap that disappears nut
The performance for eliminating gap directly influences the stability and accuracy of straight line screw rod operation.In order to which the gap nut assembly that guarantees to disappear is in silk
It can play a role long-term effectively on thick stick, in equipment investment before use, the gap nut assembly that disappears is generally required by largely testing
And Performance Evaluation.And found by literature search to the prior art, there is presently no the healthy shapes for the gap nut assembly that is suitble to disappear
State on-Line Monitor Device carries out the device of real-time monitoring to torsional spring health status in the gap nut that disappears in work.Such as Shanghai is handed over
The design of multifunctional nut tightening machine system, the development of the torsional spring detection system of Hubei University Of Technology's virtual instrument, river of logical university
A kind of spring Tension-pressure tester and torque wrench of the design of Nan Zhong optics group match the device of monitoring torsional spring power, can only
Large-scale torsion spring torque is monitored, and most of obtained by torque sensor, is far from satisfying in small space
The on-line monitoring of the gap that disappears nut assembly health status.
Summary of the invention
Technical purpose of the invention provides a kind of gap nut structure that disappears with component health status on-Line Monitor Device, with
Make up the deficiencies in the prior art.
The technical solution of the present invention is as follows:
A kind of gap nut structure that disappears with component health status on-Line Monitor Device, including shell, front nut, back nut and torsion
Spring, which is characterized in that be additionally provided with torque adjusting set, push nut, intermediate link block, pull pressure sensor, angular transducer and
Spacing card；
The shell is the sleeve pipe structure that middle part is equipped with flange, is equipped with axially disposed interior flower in the lumen that front and back penetrates through
Key, forward and backward nut passes through the external splines being adapted to therewith respectively and is mounted in lumen, circumferentially fixed, and lumen is close to its front end
The position in face is equipped with lordosis terrace, keeps off in the front of front nut；
The rear portion of the shell is equipped with external screw thread, pushes nut to pass through the rear portion that the internal screw thread being adapted to therewith is mounted on shell, pushes away
The screw hole of dynamic nut is equipped with rear convex rank face in the position close to end face thereafter, keeps off at the rear of back nut；
The torque adjusting set is cylindrical sleeve pipe structure, is covered on shell, and central axes and the central axes of shell are concentric, is turned round
The front end face of square adjusting set is against on the trailing flank of casing ledge disk；
The promotion nut, torsional spring are arranged in the torque adjusting set, and the front of nut is pushed to be equipped with the peace towards open front
The probe of tankage, intermediate link block and pull pressure sensor is in the mounting groove；It is convex to be located at shell on shell for torsion spring set
Between edge disk and promotion nut, the front end torque arm of torsional spring is fixedly connected with torque adjusting set, and the rear end torque arm of torsional spring and centre connect
Connect block connection, the sensitive surface of the pull pressure sensor perpendicular to the torsional spring tangent to helix Jing Guo the rear end torque arm starting point, in
Between link block be pressed in pull pressure sensor under torsional spring twisting force sensitive surface on；
The front end face of nut is pushed to be equipped with two buckles being located at left and right sides of mounting groove, the spacing card is equipped with
Two corresponding card holes, spacing card are buckled in by card hole and are pushed on nut, for stopping intermediate link block and pressure sensing
Device is detached from from mounting groove opening.
The angular transducer uses contactless magnetic rotary encoder, and the contactless magnetic rotary encoder includes
The outside of torque adjusting set is arranged in magnet ring and reading head, the magnet ring, is fixed in a manner of concentric co-axial and pushes nut
On rear end face.
On the basis of above scheme, further improvement or preferred scheme further include:
The intermediate link block is equipped with the jack of installation front end torque arm, and intermediate link block side is equipped with lubricant holding tank.Institute
Lubricant holding tank is stated for lubricant storage, is reduced in measurement process, since frictional resistance brings the relatively large deviation of measurement.
Preferably, two card holes of the spacing card are designed as arc-shaped kidney slot, with reduce mismachining tolerance and
Bring when slight deformation, which occurs, for spacing card influences, and the arc-shaped center of circle is fallen on the central axes for pushing nut.
Preferably, the pull pressure sensor uses LH-Y01-10 micro-force sensor.
Preferably, the magnetic rotary encoder uses AksIM paraxonic absolute type magnetic rotary encoder, using MRA7 magnetic
Ring.
Further, the front side of the casing ledge disk is equipped with mounting flange.
Preferably, the spacing card uses sheet metal
The utility model has the advantages that
The present invention disappears gap nut structure by reasonably planning, the cloth to monitoring device is completed in the small spatial dimension of nut
Office and assembling, the monitoring including monitoring and rotation angle to torsional spring torsion, can meet and offset gap nut assembly health status
Real time on-line monitoring demand, and the present invention disappears that gap nut structure is small in size, and stabilized structure is stable, easy to implement and production
Manufacture is suitble to promote the use of.
Detailed description of the invention
Fig. 1 is the axial cross-sectional views of gap nut structure of disappearing in specific embodiment；
Fig. 2 is the radial section schematic diagram of gap nut structure of disappearing in specific embodiment；
Fig. 3 is the explosive view of gap nut structure of disappearing in specific embodiment；
Fig. 4 is the structural schematic diagram of intermediate link block in specific embodiment；
Fig. 5 is the structural schematic diagram that nut is pushed in specific embodiment.
Specific embodiment
For the working principle that the present invention is furture elucidated, the present invention is done in detail with specific embodiment with reference to the accompanying drawing
Introduction.
A kind of gap nut structure that disappears with component health status on-Line Monitor Device as shown in Figures 1 to 5, including shell
1, two acme nut 2 of body, torque adjusting set 4, pushes nut 5, torsional spring 6, intermediate link block 7, pressure to pass at mounting flange 3
The components such as sensor 8, angular transducer and spacing card.In the present embodiment, it is distributed before and after two acme nuts 2, is referred to as preceding spiral shell
Female and back nut.Sheet metal 9 is used in described spacing card the present embodiment.
The shell 1 is that middle part (indicating a certain position between shell rear and front end, be not specific to absolute median) is equipped with
The sleeve pipe structure of flange is equipped with the lumen of front and back perforation, and axially disposed internal spline is equipped in 1 lumen of shell, forward and backward
Nut outer surfaces are equipped with the external splines being adapted to its keyway, i.e., forward and backward nut is by uneven spline structure with circumferential direction
Fixed mode is mounted in the lumen of shell 1.1 lumen of shell is equipped with lordosis terrace in the position close to its front end face, and gear exists
The front of front nut, prevents front nut to be detached from from lumen.
The rear portion of the shell 1 is equipped with external screw thread, and nut 5 is pushed to be equipped with the internal screw thread that is adapted to therewith, when installation, pushes spiral shell
Mother 5 is screwed on shell 1.It pushes the screw hole of nut 5 to be equipped with rear convex rank face in the position close to end face thereafter, keeps off in back nut
Rear prevents back nut to be detached from from 1 lumen of shell.
The torque adjusting set 4 is cylindrical sleeve pipe structure, is covered on shell 1, the central axes of central axes and shell 1
With one heart, the front end face of torque adjusting set 4 is against on the trailing flank of 1 flange of shell, as shown in Figure 1.
The promotion nut 5, torsional spring 6 are arranged in the torque adjusting set 4, push the front of nut 5 to be equipped with facing forward
The mounting groove of opening, mounting groove is by two parts groove body respectively with intermediate link block 7, the adaptation of 8 chamfered shape of pull pressure sensor
In the mounting groove, 8 sensitive surface of pull pressure sensor is connect with centre for composition, intermediate link block 7 and pull pressure sensor 8
Block 7 contacts.The torsional spring 6 then covers on shell 1, is located at casing ledge disk and pushes between nut 5, the front end torque arm of torsional spring 6
It buckles on the front tube wall of torque adjusting set 4, the rear end torque arm of torsional spring 6 is connect with intermediate link block 7.As shown in Figure 4, Figure 5,
The intermediate link block 7 is equipped with the jack of front and back perforation, and the rear end torque arm of torsional spring 6 is protruded into the jack, is fixed
In intermediate link block 7, through the transmitting of intermediate link block 7, by the twisting force of torsional spring 6 in pull pressure sensor 8.The drawing
The side of intermediate link block is arranged in pressure sensor 8, and sensitive surface is cut perpendicular to the spiral Jing Guo torsional spring rear end torque arm starting point
Line acts on the torsion of torsional spring 6 maximumlly in pull pressure sensor 8.
The side of the intermediate link block 7 is additionally provided with arc-shaped lubricant holding tank, for storing lubricating oil.
A buckle is further respectively had at left and right sides of mounting groove on the front end face for pushing nut 5.The metal foil
Piece 9 is arc-shaped, and corresponds to corresponding card hole there are two setting on the buckle sheet metal.When installation, by two of sheet metal 9
Card hole is respectively pivoted on corresponding buckle, the length of sheet metal across mounting groove,
The intermediate link block 7 and pull pressure sensor 8 that can be blocked in mounting groove prevent the two from taking off easily out of mounting groove
From.Two card holes of sheet metal 9 are preferably designed for arc-shaped kidney slot, to adapt to bring when sheet metal 9 bends
Error and machining accuracy error.The arc-shaped center of circle of kidney slot is fallen on the central axes for pushing nut 5.
It is additionally provided with corresponding string holes on the promotion nut 5 and torque adjusting set 4, the cable of pull pressure sensor 8 is from institute
The outside for passing through in string holes and reaching the gap nut structure that disappears is stated, is connect with monitoring outlay.
The angular transducer uses contactless magnetic rotary encoder, and the contactless magnetic rotary encoder includes
Magnet ring 10 and reading head 12.The diameter of the magnet ring 10 is greater than torque adjusting set 4, and the outside of torque adjusting set 4 is arranged in, passes through
If bolt stem is fixed on the rear end face for pushing nut 5 in a manner of concentric co-axial, with pushing nut 5 to rotate, then pass through
Mounting base 11 is with respect to the fixed reading head 12 of magnet ring 10.Reading head 12 is fixed in mounting base 11 by two M5 bolts, with magnet ring
10 position cooperation.And mounting base 11 is then to be fixed in the external agency other than disappearing gap nut structure described in the present embodiment.
In the present embodiment, the pull pressure sensor 8 preferably uses LH-Y01-10 micro-force sensor, outer diameter of popping one's head in
10 mm, height 6mm, precision 0.5%, range is in 0~50N, stainless steel material.The magnetic rotary encoder preferably uses MRA7 magnetic
The AksIM paraxonic absolute type magnetic rotary encoder of ring.
The front side of 1 flange of shell is arranged in the mounting flange 3, for connecting external agency.
The present embodiment gap nut structure that disappears integrally is mounted on lead screw, and motor drives lead screw rotation, is disappeared to drive
Gap nut structure is moved in a straight line along lead screw.When work, the torsion of torsional spring 6 is by intermediate 7 indirectly-acting of link block in tension and compression
The induction zone of force snesor 8, reading the detection signal that pull pressure sensor 8 is sent by monitoring outlay can be obtained torsional spring 6
Health status.When torsional spring 6 rotates, it will drive and nut 5 and magnet ring 10 is pushed to rotate, reading head 12 will test result hair
It is sent to monitoring outlay, the torsion situation of torsional spring 6 can be obtained.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, the present invention
Claimed range is delineated by the appended claims, the specification and equivalents thereof from the appended claims.
Claims (7)
1. a kind of gap nut structure that disappears with component health status on-Line Monitor Device, including shell (1), front nut, rear spiral shell
Female and torsional spring (6), which is characterized in that be additionally provided with torque adjusting set (4), nut (5), intermediate link block (7), pressure is pushed to pass
Sensor (8), angular transducer and spacing card；
The shell (1) is the sleeve pipe structure that middle part is equipped with flange, is equipped in the lumen that front and back penetrates through axially disposed
Internal spline, forward and backward nut passes through the external splines being adapted to therewith respectively and is mounted in lumen, circumferentially fixed, and lumen is close to it
The position of front end face is equipped with lordosis terrace, keeps off in the front of front nut；
The rear portion of the shell (1) is equipped with external screw thread, pushes nut (5) to pass through the internal screw thread being adapted to therewith and is mounted on shell (1)
Rear portion, push the screw hole of nut (5) to be equipped with rear convex rank face in the position close to end face thereafter, keep off at the rear of back nut；
The torque adjusting set (4) is cylindrical sleeve pipe structure, is covered on shell (1), the axis of central axes and shell (1)
Line is concentric, and the front end face of torque adjusting set (4) is against on the trailing flank of shell (1) flange；
The promotion nut (5), torsional spring (6) are arranged in the torque adjusting set (4), and the front of nut (5) is pushed to be equipped with
Towards the mounting groove of open front, intermediate link block (7) and pull pressure sensor (8) are in the mounting groove；Torsional spring (6) is covered in shell
On body (1), it is located at casing ledge disk and pushes between nut (5), the front end torque arm of torsional spring (6) and torque adjusting set (4) is fixed
Connection, the rear end torque arm of torsional spring (6) are connect with intermediate link block (7), and the sensitive surface of the pull pressure sensor (8) is perpendicular to warp
The torsional spring tangent to helix of the rear end torque arm starting point is crossed, intermediate link block (7) is pressed in pressure biography under the action of torsional spring torsion
In the sensitive surface of sensor (8)；
It pushes the front end face of nut (5) to be equipped with two be located at left and right sides of mounting groove to buckle, in the spacing card
If spacing card is buckled in promotion nut (5) by card hole there are two corresponding card hole, for stop intermediate link block (7) and
Pull pressure sensor (8) is detached from from mounting groove opening.
The angular transducer uses contactless magnetic rotary encoder, and the contactless magnetic rotary encoder includes magnet ring
(10) it is arranged in the outside of torque adjusting set (4), is fixed in a manner of concentric co-axial with reading head (12), the magnet ring (10)
On the rear end face for pushing nut (5).
2. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1, special
Sign is that the intermediate link block (7) is equipped with the jack of installation front end torque arm, and intermediate link block (7) side is equipped with lubricant
Holding tank.
3. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1, special
Sign is that two card holes of the spacing card are arc-shaped kidney slot, and the arc-shaped center of circle, which is fallen in, pushes nut (5)
Central axes on.
4. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1,2 or 3,
It is characterized in that, the pull pressure sensor (8) is LH-Y01-10 micro-force sensor.
5. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1,2 or 3,
It is characterized in that, the magnetic rotary encoder is AksIM paraxonic absolute type magnetic rotary encoder, using MRA7 magnet ring.
6. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1,2 or 3,
It is characterized in that, the front side of shell (1) flange is equipped with mounting flange (3).
7. a kind of gap nut structure that disappears with component health status on-Line Monitor Device according to claim 1,2 or 3,
It is characterized in that, the spacing card uses sheet metal (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567264.8A CN110145580B (en) | 2019-06-27 | Anti-backlash nut structure with component health status on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910567264.8A CN110145580B (en) | 2019-06-27 | Anti-backlash nut structure with component health status on-line monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110145580A true CN110145580A (en) | 2019-08-20 |
| CN110145580B CN110145580B (en) | 2024-05-10 |
Family
ID=
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