CN202453184U - Parameter measurement device for tapered roller bearing - Google Patents
Parameter measurement device for tapered roller bearing Download PDFInfo
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- CN202453184U CN202453184U CN201120560538XU CN201120560538U CN202453184U CN 202453184 U CN202453184 U CN 202453184U CN 201120560538X U CN201120560538X U CN 201120560538XU CN 201120560538 U CN201120560538 U CN 201120560538U CN 202453184 U CN202453184 U CN 202453184U
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- 238000005259 measurement Methods 0.000 title claims abstract description 26
- 230000003068 static effect Effects 0.000 claims abstract description 29
- 230000007704 transition Effects 0.000 claims abstract description 18
- 230000001360 synchronised effect Effects 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 18
- 125000006850 spacer group Chemical group 0.000 claims description 7
- 238000012856 packing Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005489 elastic deformation Effects 0.000 abstract description 9
- 238000005303 weighing Methods 0.000 abstract 7
- 229910000831 Steel Inorganic materials 0.000 abstract 4
- 239000010959 steel Substances 0.000 abstract 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
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- 239000004519 grease Substances 0.000 description 1
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Abstract
The utility model relates to a parameter measurement device for a tapered roller bearing, which is used for detecting the friction moment and the elastic deformation amount of the tapered roller bearing. The parameter measurement device for the tapered roller bearing comprises a rack, a loading mechanism, a main shaft component and a measurement mechanism, wherein the measurement mechanism is provided with a static pressure air-floating platform, a weighing sensor, a transition seat, a bearing pedestal, a measurement bracket, a point-mode weighing sensor and a dowel steel; the loading mechanism is provided with a protecting jacket, a balance spring, a linear bearing, a slide carriage and a loading oil cylinder; the static pressure air-floating platform is arranged on the base; the balance spring is arranged on a stand column; the slide carriage is also used as a loading oil cylinder body and is installed on the stand column; the main shaft component is arranged on the slide carriage; the measurement mechanism is provided with the weighing sensor, the transition seat, the bearing pedestal, the measurement bracket, the point-mode weighing sensor and the dowel steel; the weighing sensor is arranged on the static pressure air-floating platform; the point-mode weighing sensor is arranged on the measurement bracket; one end of the dowel steel is fixed with the static pressure air-floating platform; and the other end of the dowel steel corresponds to the weighing sensor. The parameter measurement device for the tapered roller bearing has the advantages of accurate data measurement and convenience in use.
Description
Technical field
The utility model relates to a kind of taper roll bearing parameter measuring apparatus of bearing industry, is applicable to mainly that outside dimension is small-sized at φ 28-120mm, the moment of friction of middle-size and small-size taper roll bearing and elastic deformation amount detect.
Background technology
In the past; The taper roll bearing of domestic bearing industry is not do moment of friction and elastic deformation amount's detection, nearly ten years, because market competition; User's requirement, bearing manufacturer begins to attempt making the taper roll bearing moment of friction and the elastic deformation amount detects the quality of verifying bearing.Also there are not at present special taper roll bearing moment of friction and elastic deformation amount's measuring machine.
The utility model content
The utility model problem to be solved provides a kind of taper roll bearing parameter measuring apparatus, corresponding moment of friction and corresponding elastic deformation amount in the time of can measuring the axial force that taper roll bearing varied in size, and measurement data is accurate, and easy to use.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of taper roll bearing parameter measuring apparatus comprises frame, load maintainer, spindle unit, measuring mechanism, four root posts and upper junction plate, the fixing formation of base frame; It is characterized in that measuring mechanism is provided with static pressure air-bearing platform, LOAD CELLS, transition seat, bearing seat, measurement bracket, point type LOAD CELLS, transmission rod; Load maintainer is provided with the load cylinder of protective jacket, balancing spring, linear bearing, slide and two symmetries, and the static pressure air-bearing platform is installed on the base, and four balancing springs are contained in respectively on four root posts; The double load cylinder cylinder body of doing of the slide of load maintainer; The slide that linear bearing is housed is installed on four root posts of frame, and spindle unit is installed on the slide, and spindle unit is connected with servomotor on the slide with synchronous band; Bearing inner assembly to be detected is installed on the spindle unit; When the load cylinder cavity of resorption had pressure oil, the bearing inner assembly to be detected on the spindle unit moved down with bearing outer ring and contacts the required load of acquisition test, and measuring mechanism is provided with LOAD CELLS, transition seat, bearing seat, measurement bracket, point type LOAD CELLS, transmission rod; LOAD CELLS is fixed on the static pressure air-bearing platform; The transition seat is contained on the LOAD CELLS, and bearing outer ring to be detected is packed in the bearing seat, and bearing seat places the centre position on the transition seat; Measurement bracket is installed on the base; The point type LOAD CELLS is installed on the measurement bracket, and transmission rod one end and static pressure air-bearing platform are fixed, and the transmission rod other end is corresponding with the point type LOAD CELLS.Adjust transmission rod and point type LOAD CELLS to correct position, the bearing inner assembly to be detected of rotation contacts with bearing outer ring, and the moment of friction of generation drives the static pressure air-bearing table top and rotates, and just can record the taper roll bearing moment of friction.
The utility model measuring mechanism also is provided with dial gauge, and dial gauge is installed on the transition seat, and dial gauge is provided with adjuster bar.When the utility model was measured the taper roll bearing moment of friction, the static pressure air-bearing platform rotated no frictional resistance and is used for guaranteeing the accuracy measured, and it is the size that is used for reflecting loading force that LOAD CELLS is fixed on the static pressure air-bearing platform; The point type LOAD CELLS is to be used for measuring the taper roll bearing moment of friction, and the transition seat is contained on the LOAD CELLS, and bearing outer ring to be detected is packed into and is placed on the transition seat more together in the bearing seat; And centering, measurement bracket is installed on the base, and the point type LOAD CELLS is installed on the measurement bracket; Transmission rod one end is screwed in the side screw of static pressure air-bearing platform, and the adjustment transmission rod other end and the fast position contacting of point type LOAD CELLS contact when the bearing inner assembly to be detected that rotates moves downward with bearing outer ring to be detected; And certain load is arranged, the moment of friction of generation drives the static pressure air-bearing platform and rotates, and transmission rod is contacted with the point type LOAD CELLS; The power that the point type LOAD CELLS is experienced multiply by static pressure air-bearing platform center and is taper roll bearing moment of friction under this load to the distance of transmission rod bulb position; Add different load and can measure corresponding moment of friction, measure the deflection of taper roll bearing, adjuster bar is installed on the transition seat; The elastic deformation amount that dial gauge is used for measuring taper roll bearing is housed on the adjuster bar; This moment, the static pressure air-bearing platform was not worked, and this moment, bearing inner assembly to be detected did not rotate, when slide moves down; Bearing inner assembly to be detected contacts with bearing outer ring to be detected; And certain load is arranged, the adjustment adjuster bar makes the contact of dial gauge contact with the large end face of bearing inner assembly to be detected and his-and-hers watches, adds different load and can measure corresponding deflection.
The said load maintainer of the utility model also is provided with and loads support, bearing pin, oscillating bearing, small synchronous pulley, is with synchronously, adjusts plate, servomotor, and load cylinder comprises piston rod, oil cylinder cover, lower oil cylinder cover, and oscillating bearing is contained on the piston rod; Oscillating bearing connects the loading support through bearing pin; Load support and be fixed on the upper junction plate, when two load cylinder upper and lower cavities had pressure oil respectively, cylinder body (slide) moved up and down; The adjustment plate that servomotor is housed is installed on the slide; Small synchronous pulley is housed on the servomotor, is connected with spindle unit with being with synchronously, the adjustment plate is used for regulating the servomotor position makes synchronous band degree of tightness suitable.
The described spindle unit of the utility model is provided with mandrel, dismounting nut, main shaft, spindle drum, cone spacer, big synchronous pulley, set nut, pull bar, upper end cover, deep groove ball bearing, angular contact ball bearing, bottom end cover; Angular contact ball bearing, deep groove ball bearing all are contained in the spindle drum of also packing into together on the main shaft; Bottom end cover and the upper end cover that has an O-ring seal be installed in respectively the following of spindle drum with above; Between main shaft and the upper end cover cone spacer is installed, big synchronous pulley is installed on the main shaft to be fixed with set nut, and spindle unit is installed on the slide; Bearing inner assembly to be detected is installed on the mandrel; Mandrel upper end is provided with taper shank and cooperates with the main shaft internal taper hole through the pull bar tension, and the dismounting nut is installed on the mandrel, and the first releasing lever nut of screwing again both can when dismantling mandrel.
The utility model can be measured the corresponding moment of friction and the corresponding elastic deformation amount of taper roll bearing, and measurement data is accurate, and is easy to use.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 looks synoptic diagram for the left side of Fig. 1;
Fig. 3 is the structural representation of the utility model embodiment frame and load maintainer;
Fig. 4 looks synoptic diagram for the left side of Fig. 3;
Fig. 5 is the structural representation of the utility model embodiment spindle unit;
Fig. 6 is the structural representation of the utility model examples measure mechanism;
Fig. 7 looks synoptic diagram for the left side of Fig. 6;
Among the above-mentioned figure: 1-load maintainer, 2-spindle unit, 3-measuring mechanism, 4-base, 5-protective jacket, 6-balancing spring, 7-linear bearing, 8-slide, 9-column, 10-upper junction plate, 11-loading support, 12-bearing pin, 13-oscillating bearing, 14-oil cylinder cover, 15-piston rod, 16-lower oil cylinder cover, 17-small synchronous pulley, 18-be with synchronously, 19-adjustment plate, 20-servomotor, 21-bearing inner assembly to be detected, 22-mandrel, 23-dismounting nut, 24-screw, 25-main shaft, 26-spindle drum, 27-cone spacer, 28-big synchronous pulley, 29-set nut, 30-pull bar, 31-upper end cover, 32-deep groove ball bearing, 33-spindle nut, 34-packing ring, 35-angular contact ball bearing, 36-bottom end cover, 37-static pressure air-bearing platform, 38-LOAD CELLS, 39-transition seat, 40-bearing seat, 41-bearing outer ring to be detected, 42-dial gauge, 43-adjuster bar (cover), 44-point type LOAD CELLS, 45-measurement bracket, 46-transmission rod.
Embodiment
Referring to Fig. 1～Fig. 7, the utility model embodiment taper roll bearing parameter measuring apparatus is made up of frame, load maintainer 1, spindle unit 2, measuring mechanism 3, and frame comprises base 4, column 9 (four), upper junction plate 10; Column 9 (four) be connected with upper junction plate 10, base 4; Be fixed into one with nut, slide 8 is installed on four root posts 9 of frame, and spindle unit 2 is installed on the slide 8; Spindle unit 2 usefulness synchronously with 18 be installed in slide 8 on servomotor 20 be connected; Obtain test required drive and rotating speed (60r/min), during loading, because of the slide 8 double load cylinder cylinder bodies (slide and load cylinder cylinder body one constitute) of doing; When the oil cylinder cavity of resorption of slide 8 has pressure oil; Bearing inner assembly to be detected 21 on the spindle unit 2 moves down with bearing outer ring 41 to be detected and contacts, and obtains the required load of test, and static pressure air-bearing platform 37 usefulness bolts are installed on the base 4; Adjust on the static pressure air-bearing platform 37 transmission rod 46 and point type LOAD CELLS 44 in place; When the bearing inner assembly to be detected 21 of rotation contact with bearing outer ring 41 to be detected, 37 rotations of the moment of friction of generation drive static pressure air-bearing platform just can record the taper roll bearing moment of friction.
The load maintainer 1 of the utility model embodiment is provided with protective jacket 5, balancing spring 6, linear bearing 7, slide 8, column 9, upper junction plate 10, loads support 11, bearing pin 12, oscillating bearing 13, small synchronous pulley 17, be with 18 synchronously, adjustment plate 19, servomotor 20 and two load cylinders, load cylinder comprises slide 8 (being the load cylinder cylinder body), oil cylinder cover 14, piston rod 15, lower oil cylinder cover 16, four root posts is contained on the base 4 fixes with nut earlier; Again four protective jackets 5 and four balancing springs 6 are installed in (each column 9 is all installed a spring 6) on four root posts 9 respectively; The slide 8 that eight cover linear bearings 7 will be housed again is installed on four root posts 9, installs web joint 10 then, fixes with nut; It is free and relaxed that linear bearing 7 and column 9 move up and down slide 8 as linear guides; Balancing spring 6 is used for the quality of the parts such as spindle unit 3, servomotor 20 on balance slide 8 and the slide 8, adopts two load cylinders of symmetry to load, and guarantees the center of loading force through bearing to be detected; Earlier the O RunddichtringO on the piston rod 15 is installed; Put the oil cylinder cover 14 that has dust ring and O RunddichtringO, fill in simultaneously in the slide 8 upper cylinder cylinder bore, load onto lower oil cylinder cover 16 again; The bearings that makes a final check 13 is contained on piston rod 15 screw threads; Connect loading support 11 through bearing pin 12, be fixed on the upper junction plate 10 loading support 11, (when the oil cylinder upper and lower cavity has pressure oil respectively; Slide 8 moves up and down along four root posts 9) also be installed in adjustment plate 19 on the slide 8 with servomotor 20; Small synchronous pulley 17 is housed on the servomotor 20,18 is connected (be with synchronously 18 be installed between small synchronous pulley 17 and the big synchronous pulley 28) with being with synchronously with spindle unit 2, adjustment plate 19 is used for regulating servomotor 20 positions makes synchronous band degree of tightness suitable; Accomplished compact conformation, the part good rigidly.
The spindle unit 2 of the utility model embodiment is provided with bearing inner assembly to be detected 21, mandrel 22, dismounting nut 23, screw 24, main shaft 25, spindle drum 26, cone spacer 27, big synchronous pulley 28, set nut 29, pull bar 30, upper end cover 31, deep groove ball bearing 32, spindle nut 33, packing ring 34, angular contact ball bearing 35, bottom end cover 36; During dress spindle unit 2, earlier each part is cleaned up, deep groove ball bearing 32 will be adorned a small amount of railway grease with angular contact ball bearing 35 and assemble; Earlier angular contact ball bearing 35 is contained on the main shaft 25; It is fixing tight to put packing ring 34 usefulness spindle nuts 33 again, deep groove ball bearing 32 is contained on the main shaft 25, in the spindle drum 26 of packing into simultaneously then again; Install the bottom end cover 36 and upper end cover 31 that have O-ring seal; It is fixing tight with big synchronous pulley 28 usefulness set nuts 29 to refill cone spacer 27, and after spindle unit 2 installed, the precision of main shaft 25 will guarantee: diameter run-out and axial runout be < 0.003mm respectively; Bearing inner assembly 21 to be detected is installed on the mandrel 22; Mandrel 22 upper ends are provided with taper shank and cooperate with main shaft 25 internal taper holes, and mandrel 22, main shaft 25 are installed in spindle unit 2 on the slide 8 with screw 24 through pull bar 30 tensions; Again through synchronously with 18 with servomotor 20 on small synchronous pulley 17 be connected, obtain test required drive and rotating speed.
The measuring mechanism 3 of the utility model embodiment is provided with static pressure air-bearing platform 37, LOAD CELLS 38, transition seat 39, bearing seat 40, dial gauge 42, adjuster bar 43, (NCA) point type LOAD CELLS 44, measurement bracket 45, transmission rod 46; When measuring the taper roll bearing moment of friction, static pressure air-bearing platform 37 will guarantee vertical bearing 15000N, when radially carrying 2000N; Rotate no frictional resistance; Earlier transmission rod 46 1 ends are screwed in the side screw of static pressure air-bearing platform 37, position suitable is fixed with nut, LOAD CELLS 38 is fixed on the static pressure air-bearing platform 37 again; Transition seat 39 is contained on the LOAD CELLS 38; Bearing outer ring 41 to be detected is packed into and is placed on together on the transition seat 39 in the bearing seat 40 again, and centering, and measurement bracket 45 is installed on the base 4; Point type LOAD CELLS 44 is installed on the measurement bracket 45; Adjustment transmission rod 46 other ends and point type LOAD CELLS 44 fast position contacting contact when the bearing inner assembly to be detected 21 that rotates moves downward with bearing outer ring 41 to be detected, and certain load are arranged; The moment of friction that produces drives static pressure air-bearing platform 37 and rotates; Transmission rod 46 is contacted with point type LOAD CELLS 44, and the power that point type LOAD CELLS 44 is experienced multiply by static pressure air-bearing platform 37 centers and is taper roll bearing moment of friction under this load to the distance of transmission rod 46 bulb positions, adds different load and can measure corresponding moment of friction.
Adjuster bar 43 is installed on the transition seat 39, and the elastic deformation amount that dial gauge 42 is used for measuring taper roll bearing is housed on the adjuster bar 43, and static pressure air-bearing platform 37 is not worked at this moment; Bearing inner assembly 21 to be detected does not rotate; When slide 8 moves down, bearing inner assembly 21 to be detected contacts with bearing outer ring 41 to be detected, and certain load is arranged; Adjustment adjuster bar 43 makes the contact of dial gauge 42 contact with the large end face of bearing inner assembly 21 to be detected and his-and-hers watches, adds different load and can measure corresponding deflection.
Claims (4)
1. a taper roll bearing parameter measuring apparatus comprises frame, load maintainer, spindle unit, measuring mechanism, four root posts and upper junction plate, the fixing formation of base frame; It is characterized in that: measuring mechanism is provided with static pressure air-bearing platform, LOAD CELLS, transition seat, bearing seat, measurement bracket, point type LOAD CELLS, transmission rod, and load maintainer is provided with the load cylinder of protective jacket, balancing spring, linear bearing, slide and two symmetries, and the static pressure air-bearing platform is installed on the base; Four balancing springs are contained in respectively on four root posts; The double load cylinder cylinder body of doing of slide, the slide that linear bearing is housed is installed on four root posts of frame, and spindle unit is installed on the slide; Spindle unit is connected with servomotor on the slide with synchronous band; Bearing inner assembly to be detected is installed on the spindle unit, and LOAD CELLS is fixed on the static pressure air-bearing platform, and the transition seat is contained on the LOAD CELLS; Bearing outer ring to be detected is packed in the bearing seat; Bearing seat places the centre position on the transition seat, and measurement bracket is installed on the base, and the point type LOAD CELLS is installed on the measurement bracket; Transmission rod one end and static pressure air-bearing platform are fixed, and the transmission rod other end is corresponding with the point type LOAD CELLS.
2. taper roll bearing parameter measuring apparatus according to claim 1 is characterized in that: measuring mechanism also is provided with dial gauge, and dial gauge is installed on the transition seat, and dial gauge is provided with adjuster bar.
3. taper roll bearing parameter measuring apparatus according to claim 1 and 2; It is characterized in that: said load maintainer also is provided with and loads support, bearing pin, oscillating bearing, small synchronous pulley, is with, adjusts plate, servomotor synchronously; Load cylinder comprises piston rod, oil cylinder cover, lower oil cylinder cover, and oscillating bearing is contained on the piston rod, and oscillating bearing connects the loading support through bearing pin; Loading support is fixed on the upper junction plate; The adjustment plate that servomotor is housed is installed on the slide, and small synchronous pulley is housed on the servomotor, is connected with spindle unit with being with synchronously.
4. taper roll bearing parameter measuring apparatus according to claim 3; It is characterized in that: described spindle unit is provided with mandrel, dismounting nut, main shaft, spindle drum, cone spacer, big synchronous pulley, set nut, pull bar, upper end cover, deep groove ball bearing, angular contact ball bearing, bottom end cover; Angular contact ball bearing, deep groove ball bearing all are contained in the spindle drum of also packing into together on the main shaft; Bottom end cover and the upper end cover that has an O-ring seal be installed in respectively the following of spindle drum with above; Between main shaft and the upper end cover cone spacer is installed, big synchronous pulley is installed on the main shaft to be fixed with set nut, and spindle unit is installed on the slide; Bearing inner assembly to be detected is installed on the mandrel, and the mandrel upper end is provided with taper shank and cooperates with the main shaft internal taper hole through the pull bar tension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120560538XU CN202453184U (en) | 2011-12-29 | 2011-12-29 | Parameter measurement device for tapered roller bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120560538XU CN202453184U (en) | 2011-12-29 | 2011-12-29 | Parameter measurement device for tapered roller bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202453184U true CN202453184U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120560538XU Withdrawn - After Issue CN202453184U (en) | 2011-12-29 | 2011-12-29 | Parameter measurement device for tapered roller bearing |
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| CN (1) | CN202453184U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564664A (en) * | 2011-12-29 | 2012-07-11 | 浙江天马轴承股份有限公司 | Tapered roller bearing parameter measurement device |
| CN103323243A (en) * | 2013-06-03 | 2013-09-25 | 上海大学 | Radial sliding bearing test bed with elastic support |
| CN104807638A (en) * | 2015-04-13 | 2015-07-29 | 河南科技大学 | Experimental device for testing hydrostatic bearings |
| CN104807641A (en) * | 2015-05-19 | 2015-07-29 | 清华大学 | Self-force balancing thrust bearing test board |
| CN108871775A (en) * | 2018-06-27 | 2018-11-23 | 安阳工学院 | A kind of bearing roller plastic deformation experimental provision and its application method |
| CN110196128A (en) * | 2018-02-26 | 2019-09-03 | 斯凯孚公司 | Measure the unit of friction torque and the testing stand equipped with the unit under load |
| CN110196129A (en) * | 2018-02-26 | 2019-09-03 | 斯凯孚公司 | The especially testing stand of the slewing of strut bearing unit |
| CN117053877A (en) * | 2023-10-13 | 2023-11-14 | 中国科学院长春光学精密机械与物理研究所 | Pretightening force loading and adjusting device and loading and adjusting method for axial load shafting end cover |
-
2011
- 2011-12-29 CN CN201120560538XU patent/CN202453184U/en not_active Withdrawn - After Issue
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102564664A (en) * | 2011-12-29 | 2012-07-11 | 浙江天马轴承股份有限公司 | Tapered roller bearing parameter measurement device |
| CN102564664B (en) * | 2011-12-29 | 2014-01-15 | 天马轴承集团股份有限公司 | A measuring device for tapered roller bearing parameters |
| CN103323243A (en) * | 2013-06-03 | 2013-09-25 | 上海大学 | Radial sliding bearing test bed with elastic support |
| CN103323243B (en) * | 2013-06-03 | 2016-03-30 | 上海大学 | There is flexibly mounted bush(ing) bearing experiment table |
| CN104807638A (en) * | 2015-04-13 | 2015-07-29 | 河南科技大学 | Experimental device for testing hydrostatic bearings |
| CN104807638B (en) * | 2015-04-13 | 2017-04-12 | 河南科技大学 | Experimental device for testing hydrostatic bearings |
| CN104807641A (en) * | 2015-05-19 | 2015-07-29 | 清华大学 | Self-force balancing thrust bearing test board |
| CN104807641B (en) * | 2015-05-19 | 2017-03-29 | 清华大学 | A kind of force self-balanced formula Thrust Bearing Test Rig |
| CN110196129B (en) * | 2018-02-26 | 2022-03-11 | 斯凯孚公司 | Test stand for a rotating device, in particular a suspension bearing unit |
| CN110196128A (en) * | 2018-02-26 | 2019-09-03 | 斯凯孚公司 | Measure the unit of friction torque and the testing stand equipped with the unit under load |
| CN110196129A (en) * | 2018-02-26 | 2019-09-03 | 斯凯孚公司 | The especially testing stand of the slewing of strut bearing unit |
| CN110196128B (en) * | 2018-02-26 | 2022-07-05 | 斯凯孚公司 | Unit for measuring friction torque under load and test bench equipped with same |
| CN108871775B (en) * | 2018-06-27 | 2020-01-31 | 安阳工学院 | A kind of bearing roller plastic deformation experiment device and using method thereof |
| CN108871775A (en) * | 2018-06-27 | 2018-11-23 | 安阳工学院 | A kind of bearing roller plastic deformation experimental provision and its application method |
| CN117053877A (en) * | 2023-10-13 | 2023-11-14 | 中国科学院长春光学精密机械与物理研究所 | Pretightening force loading and adjusting device and loading and adjusting method for axial load shafting end cover |
| CN117053877B (en) * | 2023-10-13 | 2024-01-30 | 中国科学院长春光学精密机械与物理研究所 | Pretightening force loading and adjusting device and loading and adjusting method for axial load shafting end cover |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120926 Effective date of abandoning: 20140115 |
|
| RGAV | Abandon patent right to avoid regrant |