CN111351443A - Reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for lead screw guide rail - Google Patents
Reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for lead screw guide rail Download PDFInfo
- Publication number
- CN111351443A CN111351443A CN202010264854.6A CN202010264854A CN111351443A CN 111351443 A CN111351443 A CN 111351443A CN 202010264854 A CN202010264854 A CN 202010264854A CN 111351443 A CN111351443 A CN 111351443A
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- Prior art keywords
- guide rail
- lead screw
- glass disc
- fixed
- lubricating oil
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- 239000010687 lubricating oil Substances 0.000 title claims abstract description 22
- 239000011521 glass Substances 0.000 claims abstract description 42
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 238000013519 translation Methods 0.000 claims description 20
- 238000005096 rolling process Methods 0.000 claims description 10
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 239000003921 oil Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for a lead screw guide rail, which comprises a lower bottom plate, a support column, an upper table surface, a lead screw guide rail linear motion device, a coupler, a motor support, a glass disc clamping device, a microscope adjusting device, a loading device, a ball supporting device, a steel ball, an electric cabinet and a computer, wherein the lower bottom plate is provided with a support column; the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail adopts the lead screw guide rail device to do linear reciprocating motion, and has the advantages of high transmission efficiency, high transmission precision and low noise; the glass disc adopts a scheme of small-area replacement, so that the utilization rate of the glass disc is improved; the loading device is a spiral loading mechanism, and a hand wheel is rotated to enable a screw rod to ascend or descend so as to achieve the purposes of loading and unloading; in the experiment, the state of the lubricating oil film of the point contact area can be visually observed on a computer, and the image can be captured.
Description
Technical Field
The invention relates to the technical field related to measurement of elastohydrodynamic lubricating oil films, in particular to a reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for a lead screw guide rail.
Background
According to the measurement of international authorities, 30% -50% of world energy is consumed by friction and wear, more than 60% of material wear is caused by poor lubrication, lubrication is the most direct and effective means for reducing friction and wear, because a solid or liquid lubricating film exists between two contact surfaces, and the key lubricating type for film thickness measurement is elastohydrodynamic lubrication. The optical interference method is a film thickness measuring means based on the equal thickness interference principle, can measure the thickness of a transparent lubricating film, can directly acquire the distribution information of the film thickness by the optical interference method, and is the most effective method for measuring the thickness of the oil film.
Disclosure of Invention
The invention aims to provide a reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for a lead screw guide rail, which aims to solve the problems that most of the existing measuring devices rotate, a glass disc is a large disc, and the loss of the glass disc is large.
In order to achieve the purpose, the invention provides the following technical scheme: the reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail comprises a lower bottom plate, a support column, an upper table surface, a lead screw guide rail linear motion device, a coupler, a motor bracket, a glass disc clamping device, a microscope adjusting device, a loading device, a ball supporting device, a steel ball, an electric cabinet and a computer; the lower bottom plate is connected with the lower end of the support column through a bolt; the number of the support columns is four, and the upper ends of the support columns are connected with the upper table top through bolts; the lead screw guide rail linear motion device comprises a lead screw, a lead screw nut, a cylindrical guide rail, a guide rail sliding block, a rolling bearing, a bearing support, a base, a connecting block and a guide rail support; the base is fixed on the upper table-board; the inner ring of the rolling bearing is fixed at two ends of the screw rod, and the outer ring of the rolling bearing is fixed on the bearing support; the lead screw and the cylindrical guide rail are respectively fixed on the base through the bearing support and the guide rail support; the lead screw nut and the guide rail sliding block are connected with the connecting block; the shaft coupling is respectively connected with the input end of the lead screw and the output shaft of the motor; the vertical surface of the motor bracket is connected with the motor through a bolt, and the horizontal surface of the motor bracket is fixed on the upper table top through a bolt; the glass disc clamping device comprises a glass disc clamping clamp, a glass disc, an adjusting screw and a flange plate; the glass disc is rectangular, is embedded into the glass disc clamping fixture and is clamped by the adjusting screw, and the adjusting screw and the glass disc clamping fixture form a screw pair; the glass disc clamping fixture is connected with the connecting block through a flange plate, and a spigot is processed on the flange plate; the microscope adjusting device comprises a translation table bracket, an XYZ translation table, a microscope fixing bracket and a microscope; the translation table bracket is connected with the upper table top through a bolt; the XYZ translation stage is fixed on the translation stage bracket; the microscope fixing bracket is connected with the upper end of the XZY translation stage; the microscope is fixed in the microscope fixing bracket; the upper end of the microscope is connected with the computer data acquisition interface through a wire interface; an electric control element and a red-green light source emitter are arranged in the electric cabinet, a start button and an emergency stop button are arranged on an operation surface, and the electric cabinet is placed on the lower bottom plate; the computer is placed beside the measuring device.
Furthermore, the loading device is a spiral loading mechanism and comprises a loading plate, a rack, a nut, a screw rod and a hand wheel; the loading plate and the upper table top are connected to form a revolute pair; the upper end of the rack is fixed on the upper table top through bolts; the number of the nuts is two, and the two nuts are welded on the rack; the screw rod is matched with the nut to form a screw pair; the hand wheel is fixed at the lower end of the screw rod, and the hand wheel is rotated to enable the screw rod to ascend or descend so as to achieve the purposes of loading and unloading.
Further, the ball supporting device comprises a supporting base, a V-shaped roller and a roller shaft; the supporting base is fixed on the groove of the loading plate through a screw; the number of the V-shaped rollers is two, and the V-shaped rollers can rotate around the roller shaft; the roller shaft is fixed on the support base; the steel ball is arranged between the two V-shaped rollers.
The invention has the beneficial effects that: the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail adopts the lead screw guide rail device to do linear reciprocating motion, has the advantages of high transmission efficiency, high transmission precision and low noise, adopts a scheme with small area and is replaceable, and the utilization rate of the glass disc is improved. Meanwhile, during measurement experiments, the state of the lubricating oil film in the point contact area can be visually observed on a computer, and images can be captured.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a front view of a reciprocating point contact elastohydrodynamic lubricating oil film measuring device of a lead screw guide rail of the present invention;
FIG. 2 is a left side view of the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail of the present invention;
FIG. 3 is a schematic structural diagram of a linear motion device of a lead screw guide rail of the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail of the invention;
FIG. 4 is a schematic structural diagram of a glass disc clamping device of the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail;
fig. 5 is a schematic structural diagram of a ball support device of the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail.
In the figure: 1-a lower bottom plate; 2-a support column; 3, mounting a table top; 4-a lead screw guide rail linear motion device; 5-a coupler; 6, a motor; 7-a motor bracket; 8-a glass disc clamping device; 9-microscope adjusting device; 10-a loading device; 11-a ball support means; 12-steel balls; 13-an electric cabinet; 14-a computer; 401-lead screw; 402-lead screw nut; 403-cylindrical guide rails; 404-a rail slide; 405-a rolling bearing; 406-a bearing support; 407-base; 408-connecting block; 409-guide rail support; 801-glass disc clamping jig; 802-glass disks; 803-adjusting screws; 804-flange plate; 901-a translation stage support; 902-XYZ translation stage; 903-microscope fixing support; 904-microscope; 1001-load plate; 1002-a frame; 1003-nut; 1004-screw rod; 1005 a handwheel; 1101-a support base; 1102-V type roller; 1103-roller shaft.
Detailed Description
Specific implementations of the present invention are further described below in conjunction with the following figures.
As shown in fig. 1, 2, 3, 4, and 5, the reciprocating point contact elastohydrodynamic lubricating oil film measuring device for a lead screw guide rail of the present invention comprises a lower base plate 1, a support pillar 2, an upper table 3, a lead screw guide rail linear motion device 4, a coupler 5, a motor 6, a motor bracket 7, a glass disc clamping device 8, a microscope adjusting device 9, a loading plate 10, a ball supporting device 11, a steel ball 12, a loading device 13, an electric cabinet 14, and a computer 15; the lower bottom plate 1 is connected with the lower end of the support column 2 through a bolt; the number of the support columns 2 is four, and the upper ends of the support columns 2 are connected with the upper table top 3 through bolts; the lead screw guide rail linear motion device 4 comprises a lead screw 401, a lead screw nut 402, a cylindrical guide rail 403, a guide rail sliding block 404, a rolling bearing 405, a bearing support 406, a base 407, a connecting block 408 and a guide rail support 409; the base 407 is fixed on the upper table-board 3; the inner ring of the rolling bearing 405 is fixed at two ends of the lead screw 401, and the outer ring of the rolling bearing is fixed on the bearing support 406; the lead screw 401 and the cylindrical guide rail 403 are respectively fixed on the base 407 through the bearing support 406 and the guide rail support 409; the lead screw nut 402 and the guide rail sliding block 404 are connected with the connecting block 408; the coupler 5 is respectively connected with the input end of the lead screw 401 and the output shaft of the motor 6; the vertical surface of the motor bracket 7 is connected with the motor 6 through a bolt, and the horizontal surface is fixed on the upper table top 3 through a bolt; the glass disc clamping device 8 comprises a glass disc clamping clamp 801, a glass disc 802, an adjusting screw 803 and a flange plate 804; the glass disc 802 is rectangular, is embedded into the glass disc clamping fixture 801, is clamped by the adjusting screw 803, and forms a screw pair with the glass disc clamping fixture 801 by the adjusting screw 803; the glass disc clamping fixture 801 is connected with the connecting block 408 through a flange plate 804, and a spigot is machined on the flange plate 804; the microscope adjusting device 9 comprises a translation stage bracket 901, an XYZ translation stage 902, a microscope fixing bracket 903 and a microscope 904; the translation table bracket 901 is connected with the upper table top 3 through bolts; the XYZ translation stage 902 is fixed to the translation stage mount 901; the microscope fixing support 903 is connected with the upper end of the XZY translation stage 902; the microscope 904 is fixed in the microscope fixing bracket 903; the upper end of the microscope 904 is connected with a wire port and is connected with a data acquisition interface of a computer 14; an electric control element and a red-green light source emitter are arranged in the electric cabinet 13, a start button and an emergency stop button are arranged on an operation surface, and the electric cabinet 13 is placed on the lower bottom plate 1; the computer 14 is placed beside the measuring device.
Further, the loading device 10 is a screw loading mechanism and includes a loading plate 1001, a frame 1002, a nut 1003, a screw 1004, and a handwheel 1005; the loading plate 1001 and the upper table top 3 are connected to form a revolute pair; the upper end of the frame 1002 is fixed on the upper table top 3 through bolts; the number of the nuts 1003 is two, and the two nuts are welded to the frame 1002; the screw 1004 is matched with the nut 1003 to form a screw pair; the hand wheel 1005 is fixed at the lower end of the screw 1004, and the hand wheel 1005 is rotated to enable the screw 1004 to ascend or descend so as to achieve the purposes of loading and unloading.
Further, the ball supporting device 11 includes a supporting base 1101, a V-shaped roller 1102, a roller shaft 1103, wherein the supporting base 1101 is fixed to the groove of the loading plate 1001 by screws; the number of the V-shaped rollers 1102 is two, and the V-shaped rollers can rotate around the roller shaft 1103; the roller shaft 1103 is fixed to the support base 1101; the steel ball 12 is placed between the two V-rollers 1102.
As shown in fig. 1, 2, 3, 4 and 5, the working method of the reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail comprises the following steps: starting the computer 14 and the electric cabinet 13, taking out the glass disc 802 after the equipment normally operates, cleaning and drying the glass disc, then installing the glass disc 802 in the glass disc clamping fixture 801, fixing the glass disc 802 by using an adjusting screw 803, and opening a PLC control program to enable the motor 6 to drive the screw guide rail linear motion device 4 to drive the glass disc 802 to slowly reciprocate for leveling; a hand wheel 1005 is rotated to slowly load force on a loading plate 1001, so that a point contact area is formed between the steel ball 12 and the glass disc 802, and the position and the magnification of a microscope 904 are adjusted until a clear and complete image is formed on a screen of a computer 14; lubricant is filled on the position where the glass disc 802 is contacted with the steel ball 12; setting experiment parameters, and acquiring an image of a reciprocating point contacting a elastohydrodynamic lubricating oil film in an experiment; post-processing is performed in the computer 14 after image acquisition is completed; by changing the experimental parameters, oil film images and film thickness values under different experimental conditions can be obtained.
The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the appended claims.
Claims (3)
1. Lead screw guide reciprocating motion formula point contact elastohydrodynamic lubricating oil film measuring device, its characterized in that: the device comprises a lower bottom plate, a support column, an upper table top, a lead screw guide rail linear motion device, a coupling, a motor bracket, a glass disc clamping device, a microscope adjusting device, a loading device, a ball supporting device, a steel ball, an electric cabinet and a computer; the lower bottom plate is connected with the lower end of the support column through a bolt; the number of the support columns is four, and the upper ends of the support columns are connected with the upper table top through bolts; the lead screw guide rail linear motion device comprises a lead screw, a lead screw nut, a cylindrical guide rail, a guide rail sliding block, a rolling bearing, a bearing support, a base, a connecting block and a guide rail support; the base is fixed on the upper table-board; the inner ring of the rolling bearing is fixed at two ends of the screw rod, and the outer ring of the rolling bearing is fixed on the bearing support; the lead screw and the cylindrical guide rail are respectively fixed on the base through the bearing support and the guide rail support; the lead screw nut and the guide rail sliding block are connected with the connecting block; the shaft coupling is respectively connected with the input end of the lead screw and the output shaft of the motor; the vertical surface of the motor bracket is connected with the motor through a bolt, and the horizontal surface of the motor bracket is fixed on the upper table top through a bolt; the glass disc clamping device comprises a glass disc clamping clamp, a glass disc, an adjusting screw and a flange plate; the glass disc is rectangular, is embedded into the glass disc clamping fixture and is clamped by the adjusting screw, and the adjusting screw and the glass disc clamping fixture form a screw pair; the glass disc clamping fixture is connected with the connecting block through a flange plate, and a spigot is processed on the flange plate; the microscope adjusting device comprises a translation table bracket, an XYZ translation table, a microscope fixing bracket and a microscope; the translation table bracket is connected with the upper table top through a bolt; the XYZ translation stage is fixed on the translation stage bracket; the microscope fixing bracket is connected with the upper end of the XZY translation stage; the microscope is fixed in the microscope fixing bracket; the upper end of the microscope is connected with the computer data acquisition interface through a wire interface; an electric control element and a red-green light source emitter are arranged in the electric cabinet, a start button and an emergency stop button are arranged on an operation surface, and the electric cabinet is placed on the lower bottom plate; the computer is placed beside the measuring device.
2. The reciprocating point contact elastohydrodynamic lubricating oil film measuring device of a lead screw guide rail as claimed in claim 1, characterized in that: the loading device is a spiral loading mechanism and comprises a loading plate, a rack, a nut, a screw and a hand wheel; the loading plate and the upper table top are connected to form a revolute pair; the upper end of the rack is fixed on the upper table top through bolts; the number of the nuts is two, and the two nuts are welded on the rack; the screw rod is matched with the nut to form a screw pair; the hand wheel is fixed at the lower end of the screw rod, and the hand wheel is rotated to enable the screw rod to ascend or descend so as to achieve the purposes of loading and unloading.
3. The reciprocating point contact elastohydrodynamic lubricating oil film measuring device of the lead screw guide rail of claim 2, characterized in that: the ball supporting device comprises a supporting base, a V-shaped roller and a roller shaft; the supporting base is fixed on the groove of the loading plate through a screw; the number of the V-shaped rollers is two, and the V-shaped rollers can rotate around the roller shaft; the roller shaft is fixed on the support base; the steel ball is arranged between the two V-shaped rollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010264854.6A CN111351443A (en) | 2020-04-07 | 2020-04-07 | Reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for lead screw guide rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010264854.6A CN111351443A (en) | 2020-04-07 | 2020-04-07 | Reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for lead screw guide rail |
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| Publication Number | Publication Date |
|---|---|
| CN111351443A true CN111351443A (en) | 2020-06-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010264854.6A Pending CN111351443A (en) | 2020-04-07 | 2020-04-07 | Reciprocating motion type point contact elastohydrodynamic lubricating oil film measuring device for lead screw guide rail |
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| CN (1) | CN111351443A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763649A (en) * | 2020-12-04 | 2021-05-07 | 贵州大学 | Touch information acquisition device |
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2020
- 2020-04-07 CN CN202010264854.6A patent/CN111351443A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112763649A (en) * | 2020-12-04 | 2021-05-07 | 贵州大学 | Touch information acquisition device |
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