CN205643306U - Emollient test rack of high running accuracy - Google Patents
Emollient test rack of high running accuracy Download PDFInfo
- Publication number
- CN205643306U CN205643306U CN201620440224.9U CN201620440224U CN205643306U CN 205643306 U CN205643306 U CN 205643306U CN 201620440224 U CN201620440224 U CN 201620440224U CN 205643306 U CN205643306 U CN 205643306U
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- CN
- China
- Prior art keywords
- bearing
- main shaft
- optical flat
- running accuracy
- lubricant
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- Rolling Contact Bearings (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model discloses an emollient test rack of high running accuracy, the centre of surface of optical flat is opened has the through -hole, wherein puts and installs on the through -hole of optical flat through the bearing frame in the position with the surface vertical's of optical flat main shaft, and the test disc is installed to the main shaft upper end, and the lower extreme passes through resilient coupling and servo motor's output shaft coaxial line installation, and servo motor fixes on the motor support, and the motor support is fixed on the optical flat. Servo motor drives main shaft and the rotation of test disc, thus performance that the condition of the friction of constitutions such as disc and ball or roller vice within a definite time friction, wearing and tearing and lubrication tested emollient is tested through the investigation. The utility model has the characteristics of spin stabilization, control make things convenient for, the running accuracy is high.
Description
Technical field
This utility model relates to the technical field of measurement and test of lubricant, the lubricant testboard bay of a kind of high running accuracy.
Background technology
Lubricating film plays the effects such as carrying, anti-attrition, heat radiation in friction, and the greasy property of test lubricant tests the change of its lubricating film thickness in friction, pressure and temperature etc. the most exactly.Because friction pair contact area is little, particularly some during elastohydrodynamic lubrication, linear contact lay, generally micron dimension size, also lubrication film thickness is thin, generally the submicron even size of nanometer scale, so running accuracy and stability to lubricant test device have the highest requirement.
Common lubricant test equipment or device have four-ball tester, ring block testing machine, ball-on-disk film tester etc., after they are essentially all between the friction pair parts of two mutual motions filling lubricant, rub between investigation friction pair, wear and tear and lubrication phenomenon, thus judge the performance of lubricant or the tribological property of friction pair material.Wherein ball-on-disk film tester is a kind of device being commonly used in tribology basic research and lubricant test, the glass plate rotated by record contacts time interference fringe with steel ball thus analysis meter calculates the thickness of lubricating film, research lubrication mechanism, and the running accuracy of glass plate is required high by testing machine.So, want to be lubricated accurately the performance test of agent, the lubricant testboard bay of a kind of high running accuracy must be developed, the running accuracy of testboard bay not only should meet the test needs being currently lubricated film thickness, moreover it is possible to should meet the test needs of other occasions such as possible pressure and temperature.
Summary of the invention
The purpose of this utility model is to provide a kind of slow-roll stabilization, the lubricant testboard bay of high running accuracy easy to control, with the greasy property of test lubricant.
The technical solution of the utility model is as follows:
A kind of lubricant testboard bay of high running accuracy, the centre of surface of optical flat has through hole, main shaft its medium position vertical with the surface of optical flat is arranged on the through hole of optical flat by bearing block, main shaft upper end is provided with test plate, lower end is installed by the output shaft coaxial line of yielding coupling with servomotor, servomotor is fixed on electric machine support, and electric machine support is fixed on optical flat.
In above-mentioned, main shaft respective shaft seating position is set with the most successively: upper end cover, upper oil sealing, upper bearing (metal), upper lock washer, upper locking nut, lower bearing abutment sleeve, lower bearing, lower lock washer, lower locking nut, lower oil sealing and bottom end cover, upper end cover and bearing block are also secured on optical flat, bottom end cover is fixed on bearing block, wherein, the inner ring of upper bearing (metal) is by the main shaft shaft shoulder and upper lock washer, upper locking nut locking, and outer ring is fixed by bearing block draw-in groove and upper end cover；The inner ring of lower bearing is by lower bearing abutment sleeve and lower lock washer, lower locking nut locking.
In above-mentioned, upper bearing (metal) is angular contact ball bearing, has two, back-to-back mounted in pairing mode, and lower bearing is deep groove ball bearing.
In above-mentioned, test plate is sleeved on the round platform of main shaft upper end, and it is fixing to spin with gland.
Load rotating inertia total in stand must match with the rotary inertia of servomotor, i.e. meets following condition
J L/J M≤R
In above formulaJ LFor total load rotating inertia,J MFor the rotary inertia of servo motor rotor,RThe load rotating inertia recommended by the manufacturer for servomotor and the maximum of the ratio of rotor moment of inertia.
In stand, every parts that rotate are the load of servomotor, and computational methods are as follows
J L= J d +
J a + J c +2J b1
+ J w1+ J n1 + J s +
J b2+ J w2+ J n2+ J p
In above formula,J dFor the rotary inertia of test plate,J aFor the rotary inertia of main shaft,J cFor the rotary inertia of gland,J b1For the rotary inertia of the inner ring of angular contact ball bearing,J w1For the rotary inertia of the lock washer of top angular contact ball bearing,J n1For the rotary inertia of the locking nut of top angular contact ball bearing,J sFor the rotary inertia of sleeve,J b2For the rotary inertia of the inner ring of deep groove ball bearing,J w2For the rotary inertia of the lock washer of lower section deep groove ball bearing,J n2For the rotary inertia of the locking nut of lower section deep groove ball bearing,J pRotary inertia for yielding coupling.
In description of the present utility model, it should be noted that, unless otherwise expressly provided and limit, term " is installed ", " fixing ", " connection " should be interpreted broadly, connect for example, it may be fixing, it is also possible to be to removably connect, or be integrally connected, can understand that above-mentioned term is at concrete meaning of the present utility model with regard to concrete condition for those of ordinary skill in the art.
This utility model have employed one end angular contact ball bearing pairing support, one end angular contact ball bearing supports and can be adjusted the shafting structure of pretension amount by locking nut, it is arranged on the optical flat of high flatness, the rotating speed of test plate is directly controlled by servomotor, make test plate slow-roll stabilization, easy to control, the axial runout tolerance relative to optical flat is recorded within ± 15 μm at radius of gyration 65mm, runout tolerance is negligible, provides, for lubricant test, the testboard bay that a kind of running accuracy is high.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is sectional view of the present utility model.
Fig. 3 is the partial enlarged drawing of Fig. 2.
Fig. 4 is main shaft schematic diagram of the present utility model.
Fig. 5 is bearing block schematic diagram of the present utility model.
Detailed description of the invention
Below with reference to accompanying drawing, being described in detail detailed description of the invention of the present utility model, described specific embodiment, only in order to explain this utility model, is not intended to limit detailed description of the invention of the present utility model.
With reference to Fig. 1, the lubricant testboard bay of a kind of high running accuracy that this utility model provides, the centre of surface of optical flat 3 has through hole, main shaft 6 its medium position vertical with the surface of optical flat 3 is arranged on the through hole of optical flat 3 by bearing block 4, main shaft 6 upper end is provided with test plate 7, lower end is installed by the output shaft coaxial line of yielding coupling 10 with servomotor 1, and servomotor 1 is fixed on electric machine support 2, and electric machine support 2 is fixed on optical flat 3.
As shown in Fig. 2, Fig. 3, Fig. 4 and Fig. 5, main shaft 6 respective shaft bearing 4 position is set with the most successively: upper end cover 5, upper oil sealing 19, upper bearing (metal) 11, upper lock washer 12, upper locking nut 13, lower bearing abutment sleeve 14, lower bearing 15, lower lock washer 16, lower locking nut 17, lower oil sealing 18 and bottom end cover 9, upper end cover 5 and bearing block 4 are also secured on optical flat 3, and bottom end cover 9 is fixed on bearing block 4.The inner ring of upper bearing (metal) 11 is locked by the main shaft shaft shoulder 62 and upper lock washer 12, upper locking nut 13, and outer ring is fixed by bearing block draw-in groove 42 and upper end cover 5；The inner ring of lower bearing 15 is locked by lower bearing abutment sleeve 14 and lower lock washer 16, lower locking nut 17.
Such as Fig. 2 and Fig. 3, upper bearing (metal) 11 is angular contact ball bearing, has two, back-to-back mounted in pairing mode, and lower bearing 15 is deep groove ball bearing.
As shown in Figure 1, Figure 2 and shown in Fig. 4, test plate 7 is sleeved on the round platform 61 of main shaft 6 upper end, and spins fixing with gland 8.Round platform 61 has the highest flatness, and has the highest perpendicularity with main shaft 6 central axis, thus ensures to be minimized disc surfaces in the run-out tolerance impact of axis direction after installing test plate 7.
As it is shown on figure 3, be machined with keyway 65 on main shaft 6 for installing yielding coupling 10, the first groove 63 and the second groove 64 are respectively used to install lock washer 12 and lower lock washer 16.
As shown in Figure 4, draw-in groove 42 on bearing block 4 is for positioning the outer ring of upper bearing (metal) 11, bearing block 4 has the highest flatness with the face 41 that coordinates of optical flat 3, and have the highest perpendicularity with bearing block 4 central axis, thus ensureing after bearing block 4 is installed on optical flat 3, the difference in height i.e. run-out tolerance impact on test plate 7 with optical flat 3 is minimized.
In this utility model, lower bearing is determined by the length of lower bearing abutment sleeve with the distance of upper bearing (metal), and can float along the axis direction of bearing block corresponding aperture in the outer ring of lower bearing, change location, and the lower end of main shaft is free end, can dodge the flexible of main shaft.
In this utility model, while main axis, test plate constitutes friction pair with ball or roller etc., adds lubricant between this friction pair, by investigating the change of the thickness of lubricating film, pressure and temperature etc. thus the performance of test lubricant.
In this utility model, pretension amount can be adjusted by the locking nut below upper bearing (metal), thus improve the rigidity of bearing and the running accuracy of stand.
This utility model is in use, while servomotor 1 rotates, main shaft 6 rotates in the lump, the test plate 7 being fixed on main shaft 6 by gland 8 is rotated simultaneously, when test plate 7 rotates, its opposing optical flat board 3-dimensional is held an i.e. axial runout tolerance of the most stable height the least, the radius of gyration is 65mm when, axial runout tolerance is within ± 15 μm, and because have employed the high-precision angular contact ball bearing pre-compact schemes of back-to-back mounted in pairing mode, and the lubrication film thickness dimension scale that when testing, the contact area rate of radial direction is axial is much higher, so runout tolerance can be ignored.
Should be understood that; the foregoing is only preferred embodiment of the present utility model; it is not sufficient to limit the technical solution of the utility model; for those of ordinary skills; within spirit of the present utility model and principle; can be increased and decreased according to the above description, replaced, converted or be improved, and all these increase and decrease, replace, convert or improve after technical scheme, all should belong to the protection domain of this utility model claims.
Claims (4)
1. the lubricant testboard bay of a high running accuracy, it is characterized in that, the centre of surface of optical flat has through hole, main shaft its medium position vertical with the surface of optical flat is arranged on the through hole of optical flat by bearing block, main shaft upper end is provided with test plate, lower end is installed by the output shaft coaxial line of yielding coupling with servomotor, and servomotor is fixed on electric machine support, and electric machine support is fixed on optical flat.
The lubricant testboard bay of a kind of high running accuracy the most according to claim 1, it is characterized in that, main shaft respective shaft seating position is set with the most successively: upper end cover, upper oil sealing, upper bearing (metal), upper lock washer, upper locking nut, lower bearing abutment sleeve, lower bearing, lower lock washer, lower locking nut, lower oil sealing and bottom end cover, upper end cover and bearing block are also secured on optical flat, bottom end cover is fixed on bearing block, wherein, the inner ring of upper bearing (metal) is by the main shaft shaft shoulder and upper lock washer, upper locking nut is locked, outer ring is fixed by bearing block draw-in groove and upper end cover；The inner ring of lower bearing is by lower bearing abutment sleeve and lower lock washer, lower locking nut locking.
The lubricant testboard bay of a kind of high running accuracy the most according to claim 2, it is characterised in that upper bearing (metal) is angular contact ball bearing, has two, back-to-back mounted in pairing mode, and lower bearing is deep groove ball bearing.
The lubricant testboard bay of a kind of high running accuracy the most according to claim 1, it is characterised in that test plate is sleeved on the round platform of main shaft upper end, and it is fixing to spin with gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440224.9U CN205643306U (en) | 2016-05-16 | 2016-05-16 | Emollient test rack of high running accuracy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620440224.9U CN205643306U (en) | 2016-05-16 | 2016-05-16 | Emollient test rack of high running accuracy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205643306U true CN205643306U (en) | 2016-10-12 |
Family
ID=57056012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620440224.9U Expired - Fee Related CN205643306U (en) | 2016-05-16 | 2016-05-16 | Emollient test rack of high running accuracy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205643306U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730151A (en) * | 2020-12-29 | 2021-04-30 | 杭州电子科技大学 | Lubricating grease thickener deposited film wettability detection device and detection method thereof |
| CN114211394A (en) * | 2021-12-08 | 2022-03-22 | 宇晶机器（长沙）有限公司 | Multi-surface polishing machine hair wheel fixing device |
-
2016
- 2016-05-16 CN CN201620440224.9U patent/CN205643306U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112730151A (en) * | 2020-12-29 | 2021-04-30 | 杭州电子科技大学 | Lubricating grease thickener deposited film wettability detection device and detection method thereof |
| CN112730151B (en) * | 2020-12-29 | 2023-10-10 | 杭州电子科技大学 | Device and method for detecting wettability of deposited film of lubricating grease thickener |
| CN114211394A (en) * | 2021-12-08 | 2022-03-22 | 宇晶机器（长沙）有限公司 | Multi-surface polishing machine hair wheel fixing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 Termination date: 20170516 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |