CN104806718A - Linear transmission device with wear detection - Google Patents
Linear transmission device with wear detection Download PDFInfo
- Publication number
- CN104806718A CN104806718A CN201410031548.2A CN201410031548A CN104806718A CN 104806718 A CN104806718 A CN 104806718A CN 201410031548 A CN201410031548 A CN 201410031548A CN 104806718 A CN104806718 A CN 104806718A
- Authority
- CN
- China
- Prior art keywords
- moving body
- magnetic
- major axis
- linear actuator
- insulator
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 title abstract description 4
- 238000001514 detection method Methods 0.000 title abstract 4
- 230000005291 magnetic effect Effects 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052742 iron Inorganic materials 0.000 claims abstract description 16
- 238000005096 rolling process Methods 0.000 claims abstract description 15
- 238000005299 abrasion Methods 0.000 claims description 29
- 239000012212 insulator Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 230000001960 triggered effect Effects 0.000 abstract 1
- 239000000306 component Substances 0.000 description 8
- 238000013461 design Methods 0.000 description 2
- 150000002505 iron Chemical class 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- 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
- F16H25/22—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members
- F16H25/2204—Screw mechanisms with balls, rollers, or similar members between the co-operating parts; Elements essential to the use of such members with balls
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention provides a linear transmission device with wear detection. The device comprises a long shaft which is of an elongated structure and provided with a rolling ditch in the outer surface, a moving body, a plurality of rolling parts, a wear detection assembly and an alarming module, wherein the moving body is provided with a sleeve part sleeved with the long shaft; a rolling groove opposite to the rolling ditch is formed in the inner edge surface of the sleeve part; a load path is formed between the rolling ditch and the rolling groove; the plurality of rolling parts are arranged in the load path; the wear detection assembly is arranged to the moving body, consisting of a magnetic body and an insulating body; one end of the magnetic body is arranged relative to the outer surface of the long shaft, and the end is defined into the absorbing end; the insulating body is arranged between the magnetic body and the moving body; the alarming module comprises two connecting ends which are respectively electrically connected to the moving body and the magnetic body; the absorbing end is used for attaching wear iron chippings among the long shaft, the moving body and the rolling parts; whether the alarm module is connected according to the quantity of the iron chippings; if the quantity of the iron chippings between the magnetic body and the moving body is sufficient and the iron chippings are in contact with the magnetic body and the moving body, the alarm module is connected and triggered to prompt an alarming signal.
Description
Technical field
The present invention is a kind of linear actuator, espespecially a kind of linear actuator of tool Abrasion detecting.
Background technique
Linear actuator is often referred to ball screw or linear slide rail, and this ball screw or linear slide rail are made up of moving body, major axis and roll piece, and linear actuator is in order to have accurate positioning precision and high rigidity, therefore a precompression between moving body, major axis and roll piece, certainly will be had to exist, and this precompression refers to when linear actuator is non-loaded still mutually stressed between moving body, major axis and roll piece, and between moving body, major axis and roll piece, gapless exists; And the linear actuator with precompression is when being applied to board, the rigidity of board and positioning precision can be allowed to promote, therefore the workpiece processed also can have good quality, therefore the linear actuator with precompression is very important core component for precision machining table.
Hold above-mentioned, disappear to prevent the precompression of the linear actuator with precompression, and cause the positioning precision of linear actuator and rigidity to reduce, therefore U.S. Publication No. 7299703 Patent Case exposure one utilizes displacement meter to comprise contact-type, contactless, LVDT, optical fiber type measures moving body, the device in the gap between major axis and roll piece, relatively also represent precompression also to change when gap changes, therefore real-time informing user can carry out shutdown inspection, lose precision to prevent board and also continue operative workpiece, and cause workpiece quality bad, serious then cause batch workpiece to scrap, so the real necessity having existence of monitoring device.But this monitoring device still has following problem points:
Measuring instrument equipment is very expensive, and as too high in being installed in cost on linear actuator, client's acceptance is not high.
In fact the measurement mode of this kind of structure makes very difficult, and the position measured easily and foreign matter produce and to interfere and corrupted or surface have oil stain to adhere to, and cause the data of monitoring and actually have drop.
Summary of the invention
Because the problems referred to above, main purpose of the present invention is: research and develop a kind of low cost, Abrasion detecting device that accuracy rate is high, whether lose precompression to detect linear actuator or produced abrasion.
For reaching above-mentioned object, solution of the present invention is:
A linear actuator for tool Abrasion detecting, comprises: comprise: a major axis, and it is strip structure, and the outer surface of this major axis is provided with sliding channel; One moving body, it is provided with for the sheathed sleeved part of this major axis, and the inner edge surface of this sleeved part is provided with the rolling groove of this sliding channel relatively, and this sliding channel and rolling groove form a load path; Multiple roll piece, is located at this load path; One Abrasion detecting assembly, is located at this moving body, and this Abrasion detecting assembly is made up of a magnetic and an insulator, and the outer surface of this magnetic one end this major axis relative is arranged, and defines this end for absorption end, and is provided with this insulator between this magnetic and this moving body; One alarm modules, it has two connecting ends and is electrically connected at this moving body and this magnetic respectively; This absorption end adsorbs the abrasion iron filings between this major axis, moving body and roll piece, the whether conducting of this alarm modules is controlled by this iron filings number, amount as the iron filings between this magnetic with moving body is many to contacting this magnetic and this moving body, then this alarm modules of conducting, and trigger this alarm modules prompting alerting.
Preferably, this moving body is provided with a mounting hole, and this mounting hole is provided with internal thread, and the outer edge surface of this insulator is provided with outside thread, and this insulator screw lock is in this mounting hole.
Preferably, the absorption end of this magnetic this sliding channel setting relatively.
Preferably, this alarm modules comprises a power supply and warning component, and this power supply and this warning component are electrically connected, and export two these connecting ends.
Whereby, the present invention adsorbs this major axis by this magnetic, abrasion iron filings between moving body and roll piece, and then judge this major axis, whether abrasion are produced between moving body and roll piece three, when the iron filings worn away become many and contact this magnetic and this moving body, i.e. this alarm modules of conducting, then for linear actuator loses the omen of precompression soon, therefore send alerting by alarm modules and inform that user need notice the precompression state of linear actuator, and Abrasion detecting device of the present invention utilizes the magnetic of low cost and simple circuit design, reach initiatively inform linear transmission module whether may object, improve the problem of prior art high cost and drawn the problem of ringing sensor accuracy of judgement degree because of external greasy dirt or foreign matter.
Accompanying drawing explanation
Fig. 1 is the solid system figure of the linear actuator of the present invention first preferred embodiment tool Abrasion detecting;
Fig. 2 is the three-dimensional combination figure of the linear actuator of the present invention first preferred embodiment tool Abrasion detecting;
Fig. 3 is the sectional view of the linear actuator of the present invention first preferred embodiment tool Abrasion detecting, the non-trigger state of alarm module;
Fig. 3 A is the partial enlarged drawing at A place in Fig. 3;
Fig. 4 is the sectional view of the linear actuator of the present invention first preferred embodiment tool Abrasion detecting, and alarm module is trigger state;
Fig. 4 A is the partial enlarged drawing at B place in Fig. 4;
Fig. 5 is the solid system figure of the linear actuator of the present invention second preferred embodiment tool Abrasion detecting;
Fig. 6 is the three-dimensional combination figure of the linear actuator of the present invention second preferred embodiment tool Abrasion detecting;
Fig. 7 is the sectional view of the linear actuator of the present invention second preferred embodiment tool Abrasion detecting, the non-trigger state of alarm module;
Fig. 7 A is the partial enlarged drawing at C place in Fig. 7;
Fig. 8 is the sectional view of the linear actuator of the present invention second preferred embodiment tool Abrasion detecting, and alarm module is trigger state;
Fig. 8 A is the partial enlarged drawing at D place in Fig. 8.
[symbol description]
1 major axis 11 sliding channel
2 moving body 21 sleeved part
211 rolling groove 41 insulators
42 magnetics 421 adsorb end
5 roll piece 6 connecting ends
7 iron filings 8 power supplys
9 warning components.
Embodiment
In order to explain technological scheme of the present invention further, below by specific embodiment, the present invention will be described in detail.
Refer to shown in Fig. 1 to Fig. 4, be the present invention first preferred embodiment, the linear actuator of the present embodiment is a ball screw, and this ball screw comprises: a major axis 1, and it is strip structure, and the outer surface of this major axis 1 is provided with spiral helicine sliding channel 11, one moving body 2, it is provided with for the sheathed sleeved part 21 of this major axis 1, this sleeved part 21 is the perforation of a circle, the inner edge surface of this sleeved part 21 is provided with the rolling groove 211 of this sliding channel 11 relatively, this sliding channel 11 forms a load path with rolling groove 211, this moving body 2 is provided with a mounting hole 22, and this mounting hole 22 is provided with internal thread in the present embodiment, multiple roll piece 5, is located at this load path, multiple return piece 3, is located at this moving body 2, and it provides roll piece 5 circulating reflux, refer to shown in Fig. 1 and Fig. 3, one Abrasion detecting assembly 4, in the present embodiment, it is made up of a magnetic 42 and an insulator 41, this magnetic 42 is a magnet, this insulator 41 can be the material such as plastics or rubber and makes, the outer edge surface of this insulator 41 is provided with outside thread, and this insulator 41 screw lock is in this mounting hole 22, the outer surface of this magnetic 42 is enveloped by this insulator 41, can be learnt by Fig. 3 A, this insulator 41 is provided with between this magnetic 42 and mounting hole 22 of moving body 2, the outer surface of this magnetic 42 one end this major axis 1 relative is arranged, define this end for absorption end 421, sliding channel 11 in this absorption end 421 of the present embodiment this major axis 1 relative is arranged, because design is compared with the iron filings 7 that directly can adsorb abrasion like this, one alarm modules, this alarm modules comprises a power supply 8 and warning component 9, this warning component 9 in the present embodiment be a beacon, also can be buzzer etc., this power supply 8 is electrically connected with this warning component 9, and export this connecting end 6 of two connecting ends 6, two and be electrically connected at this moving body 2 and this magnetic 42 respectively, the absorption end 421 of this magnetic 42 adsorbs the abrasion iron filings 7 between this major axis 1, moving body 2 and roll piece 5, the whether conducting of this alarm modules is controlled by this iron filings 7 number, amount as the iron filings 7 between this magnetic 42 with moving body 2 is many to contacting this magnetic 42 and this moving body 2, then this alarm modules of conducting, and the warning component 9 triggering this alarm modules points out alerting, as shown in Figure 4.
Refer to shown in Fig. 5 to Fig. 8, for the present invention second preferred embodiment, the Linear transmission assembly of the present embodiment is a linear slide rail, except the sliding channel 11 of major axis 1 is that straight line is extended, and this moving body 2 is a ㄇ font structure, much more no longer make this sleeved part 21 be a groove-like structure, the configuration of remaining component is all identical with the first preferred embodiment, therefore to repeat at this.
Above-described embodiment and graphic and non-limiting product form of the present invention and style, any person of an ordinary skill in the technical field, to its suitable change done or modification, all should be considered as not departing from patent category of the present invention.
Claims (4)
1. a linear actuator for tool Abrasion detecting, is characterized in that, comprises: a major axis, and it is strip structure, and the outer surface of this major axis is provided with sliding channel; One moving body, it is provided with for the sheathed sleeved part of major axis, and the inner edge surface of sleeved part is provided with the rolling groove of relative sliding channel, and sliding channel and rolling groove form a load path; Multiple roll piece, is located at load path; One Abrasion detecting assembly, is located at moving body, and Abrasion detecting assembly is made up of a magnetic and an insulator, and the outer surface of the relative major axis in magnetic one end is arranged, and defines this end for absorption end, and is provided with insulator between magnetic and moving body; One alarm modules, it has two connecting ends and is electrically connected at moving body and magnetic respectively; The abrasion iron filings of absorption end absorption between this major axis, moving body and roll piece, control the whether conducting of this alarm modules by iron filings number, and trigger this alarm modules prompting alerting.
2. the linear actuator of tool Abrasion detecting as claimed in claim 1, it is characterized in that: moving body is provided with a mounting hole, and mounting hole is provided with internal thread, the outer edge surface of insulator is provided with outside thread, and insulator screw lock is in mounting hole.
3. the linear actuator of tool Abrasion detecting as claimed in claim 1, is characterized in that: the absorption of magnetic holds relative sliding channel to arrange.
4. the linear actuator of tool Abrasion detecting as claimed in claim 1, it is characterized in that: alarm modules comprises a power supply and warning component, power supply and warning component are electrically connected, and export two connecting ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031548.2A CN104806718B (en) | 2014-01-23 | 2014-01-23 | Has the linear actuator of Abrasion detecting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410031548.2A CN104806718B (en) | 2014-01-23 | 2014-01-23 | Has the linear actuator of Abrasion detecting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104806718A true CN104806718A (en) | 2015-07-29 |
| CN104806718B CN104806718B (en) | 2017-07-07 |
Family
ID=53691814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410031548.2A Active CN104806718B (en) | 2014-01-23 | 2014-01-23 | Has the linear actuator of Abrasion detecting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104806718B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051051A (en) * | 2019-06-06 | 2020-12-08 | 上银科技股份有限公司 | Linear transmission device and identification method thereof |
| CN113048206A (en) * | 2019-12-26 | 2021-06-29 | 上银科技股份有限公司 | Transmission mechanism with monitoring function |
| US11402011B2 (en) | 2020-01-13 | 2022-08-02 | Hiwin Technologies Corp. | Transmission mechanism with monitoring function |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006057817A (en) * | 2004-08-24 | 2006-03-02 | Ntn Corp | Bearing device for wheel with sensor |
| US20070251329A1 (en) * | 2004-09-24 | 2007-11-01 | Balasu Mircea G | Bearing balls escape and wear annunciator arrangement for ball screw |
| DE102007045214A1 (en) * | 2007-09-21 | 2009-04-16 | Hiwin Technologies Corp. | Ball screw, has set of rolling bodies arranged in race and warning device producing warning signal when lubricant is not sufficient to lubricate nut and threaded spindle supported at carrier |
| CN102261446A (en) * | 2010-05-13 | 2011-11-30 | 上银科技股份有限公司 | Transmission element with detection device |
-
2014
- 2014-01-23 CN CN201410031548.2A patent/CN104806718B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006057817A (en) * | 2004-08-24 | 2006-03-02 | Ntn Corp | Bearing device for wheel with sensor |
| US20070251329A1 (en) * | 2004-09-24 | 2007-11-01 | Balasu Mircea G | Bearing balls escape and wear annunciator arrangement for ball screw |
| DE102007045214A1 (en) * | 2007-09-21 | 2009-04-16 | Hiwin Technologies Corp. | Ball screw, has set of rolling bodies arranged in race and warning device producing warning signal when lubricant is not sufficient to lubricate nut and threaded spindle supported at carrier |
| CN102261446A (en) * | 2010-05-13 | 2011-11-30 | 上银科技股份有限公司 | Transmission element with detection device |
| US20120014631A1 (en) * | 2010-05-13 | 2012-01-19 | Hiwin Technologies Corp. | Bearing failure monitoring device for ball screw |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112051051A (en) * | 2019-06-06 | 2020-12-08 | 上银科技股份有限公司 | Linear transmission device and identification method thereof |
| CN113048206A (en) * | 2019-12-26 | 2021-06-29 | 上银科技股份有限公司 | Transmission mechanism with monitoring function |
| US11402011B2 (en) | 2020-01-13 | 2022-08-02 | Hiwin Technologies Corp. | Transmission mechanism with monitoring function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104806718B (en) | 2017-07-07 |
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