CN205317642U - Movable coefficient of frictional resistance testing arrangement - Google Patents
Movable coefficient of frictional resistance testing arrangement Download PDFInfo
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- CN205317642U CN205317642U CN201520872272.0U CN201520872272U CN205317642U CN 205317642 U CN205317642 U CN 205317642U CN 201520872272 U CN201520872272 U CN 201520872272U CN 205317642 U CN205317642 U CN 205317642U
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Abstract
The utility model provides a movable coefficient of frictional resistance testing arrangement, includes power transmission device, experimental exemplar fixing device, biasing means and auxiliary device, power transmission device installs auxiliary device on, experimental exemplar fixing device is connected to power transmission device's power take off end, force applying device is including being used for providing the vertical application of force unit of perpendicular pressing force and the horizontal application of force unit that is used for providing horizontal pressing force, one side of power transmission device is kept away from in the setting of horizontal application of force unit at experimental exemplar fixing device, horizontal application of force unit and base sliding connection, vertical application of force unit and horizontal application of force unit rigid coupling, vertical application of force unit is located experimental exemplar fixing device directly over. The beneficial effects of the utility model are that: small, simple structure, low, the experimental performance of cost are strong to not receiving on every side, the experimental enviroment restricts, the joining L board of preventing inclining has strengthened the security, satisfy the testing arrangement who measures different rotatory surfaces, the bionical nonsmooth surface coefficient of frictional resistance of different exemplars.
Description
Technical field
The present invention relates to a kind of packaged type coefficient of frictional resistance test device.
Background technology
Bionic non-smooth surface technology is always up one of hot issue of research both at home and abroad. It reduces abrasion and drag-reduction effect substantially will not bring optional equipment or additional energy consumption and space hold, environmental protection to prototype tool. The aspects such as the calculating currently for friction have been achieved with sizable progress both at home and abroad. For how weakening relative motion frictional resistance problem between Liquid-solid interface and solid, domestic and international worker has carried out substantial amounts of theory study and experimental study. The research of bionic non-smooth surface drag reduction technology is obtain the mechanical characteristic of test sample surface by early stage assessment and draw required conclusion mostly, and then put into again in practical implementation, improve under background gradually at drag reduction theoretical side, need to adopt certain experimental study means that theory is verified, more and more important in the theoretical research work afterwards of a set of accurate and effective test platform.
Traditional experiment place is water hole, wind-tunnel or tank etc., adopts above-mentioned experimental technique means not only to take up an area extensively, and the expense needed is more, relatively costly, thus be all subjected to certain limitation and restriction in all many-sides; Nowadays the miniature fluid performance testing device having now been developed is closed circular tubular construction mostly, is therefore not easy to installation and removal. To this, this design then needs the problem solved to be realize installing and dismantling of test exemplar. One cheap, stable performance of R & D design, manipulates convenient small-sized resistance measurement device and has positive effect for the research of bionic surface problem.
Summary of the invention
The problem being not easy to for existing frictional resistance test device mount and dismount, manufacturing cost is high, the present invention proposes a kind of packaged type coefficient of frictional resistance test device that can facilitate and accurately measure, be easily installed and dismantle.
A kind of packaged type coefficient of frictional resistance test device of the present invention, it is characterized in that: include power transmission, the fixing device of test exemplar, device for exerting and auxiliary device, described power transmission is arranged on described auxiliary device, and the clutch end of described power transmission connects the fixing device of described test exemplar, described force application apparatus includes for providing the vertical forcing unit of vertical pressing power and for providing the horizontal forcing unit of horizontal pressing power, described horizontal forcing unit is arranged on the described fixing device of the test exemplar side away from power transmission, and described horizontal forcing unit and described base are slidably connected, described vertical forcing unit is affixed with described horizontal forcing unit, and described vertical forcing unit is positioned at the surface of the described fixing device of test exemplar,
Described power transmission includes motor support base, motor, flange-face coupling, torque signal bonder, beam barrel assembly and power transmission shaft, described motor support base is loaded on the base of described auxiliary device, described motor is arranged on described motor support base, the output shaft of described motor is affixed with the power intake of described torque signal bonder by described flange-face coupling, the clutch end of described torque signal bonder is affixed by quincunx shaft coupling and described power transmission shaft one end, the other end of described power transmission shaft is affixed with the fixing device of described test exemplar, described power transmission shaft is supported on described base by described bearing assembly,
The fixing device of described test exemplar includes cylindrical sample piece bracing frame, cylindrical sample piece, plane exemplar bracing frame and plane exemplar, described cylindrical sample piece bracing frame is affixed with described power transmission shaft, described cylindrical sample piece is enclosed within the outside of described cylindrical sample piece bracing frame, and the two is circumferentially fixed by the second flat key; Described plane exemplar bracing frame is arranged on the described cylindrical sample piece bracing frame end face away from power transmission shaft side, and described plane exemplar is arranged on the outer face of described plane exemplar bracing frame;
Described auxiliary device includes auxiliary and includes base, mobile platform, platform carrier wheel axle, platform baffle plate and tooth bar, and described tooth bar is horizontally arranged at base one end, and described mobile platform is slidably connected by platform carrier wheel axle and described tooth bar.
Further, described vertical forcing unit includes moving up and down bracing frame, the first casing, the first screw mandrel, the second screw mandrel, pallet, the first pressure transducer, the first rotating disk, the first disk gear axle and arcuate member, the first described casing is arranged on the top of described gripper shoe, and the bottom of described gripper shoe is affixed with the second described device for exerting; The upper end of the first described screw mandrel snaps in the first described box house, and the lower end of the first described screw mandrel is installed and moved up and down bracing frame; The second described screw mandrel runs through the first described casing, and on the 3rd bearing that the bottom support of the second described screw mandrel is on pallet; The first described rotating disk is installed in first described disk gear axle one end, and the other end engages with the second described screw mandrel after stretching into the first described box house, it is ensured that the second described screw mandrel is lower mobile in the vertical direction; The described bracing frame upper surface that moves up and down installs the first pressure transducer, the affixed described arcuate member of the described lower surface moving up and down bracing frame, and the lower arcuate surface of described arcuate member is mated with the arc surface of described cylinder specimen, formed and the pressure face of cylinder specimen pressure.
Further, described horizontal forcing unit include the second casing, the second rotating disk, the second disk gear axle, run through the second casing move left and right screw mandrel, the second pressure transducer, the mobile platform that moves left and right bracing frame, move left and right smooth flat and be slidably connected with base, described move left and right bracing frame by moving left and right upper backup pad, move left and right lower supporting plate and the 5th screw is arranged in described gripper shoe; The described smooth flat that moves left and right is fastened with moving left and right bracing frame by the 5th screw; The second described pressure transducer is placed on and moves left and right in bracing frame, and described gripper shoe is affixed with described mobile platform; The second described rotating disk is installed in second described disk gear axle one end, and the other end engages with the described screw mandrel that moves left and right after stretching into the second described box house, it is ensured that the described screw mandrel that moves left and right moves left and right in the horizontal direction;
Further, the output shaft of described motor is supported on described base by clutch shaft bearing, the Part I of flange-face coupling is connect by the first flat key and described clutch shaft bearing axle, the input axle of the Part II of flange-face coupling and described torque signal bonder connects, and wherein the Part I of flange-face coupling and Part II are screwed tight by the first bolt, the first packing ring and the first nut; Described torque signal bonder is placed on torque signal bonder bearing, and power transmission shaft and torque signal bonder are linked together by described quincunx shaft coupling.
Further, described plane exemplar bracing frame one end is provided with convex shoulder, and described convex shoulder end face is against on one of them end face of described cylindrical sample piece bracing frame, it is ensured that described cylindrical sample piece is radially fixed; Described plane exemplar is arranged on described plane exemplar bracing frame by the 4th screw.
Further, corresponding 3rd bolt, the 3rd packing ring and back-up ring it is furnished with bottom the first described screw mandrel, the upper end of the first described screw mandrel snaps in the first described casing, and the lower end end of thread of the first described screw mandrel is fixed by the 3rd bolt, the 3rd packing ring and back-up ring after sequentially passing through pallet and moving up and down bracing frame.
Further, the described bracing frame upper surface that moves up and down is provided with the first draw-in groove for snapping in the first pressure transducer, and described draw-in groove upper end is furnished with the first sensor Anti-fall cylinder tipping upside down on the first draw-in groove top, described sensor Anti-fall cylinder is affixed by the first taper bolt and the first draw-in groove sidewall, and described sensor Anti-fall cylinder is provided with the circular hole being pressed against on the first pressure transducer for the second screw mandrel traverse; Move left and right bracing frame inner surface and be provided with the second draw-in groove for snapping in the second pressure transducer, and the second described draw-in groove upper end is furnished with the second sensor Anti-fall cylinder tipping upside down on draw-in groove top, the second described sensor Anti-fall cylinder is affixed by the second taper bolt and the second draw-in groove sidewall, the second described sensor Anti-fall cylinder is provided with for moving left and right screw mandrel through the circular hole being pressed against on the second pressure transducer, and the end moving left and right screw mandrel is furnished with the 4th nut.
Further, the first described casing includes the first upper box and the second upper box, and affixed by the 4th bolt, the 4th packing ring and the first nut between the first described upper box and the first described lower box; The second described casing includes the second left box body and the second right case, and affixed by the 5th bolt between the second described left box body and the second described left box body.
Further, described bearing assembly includes bearing spider, straight tube, bearing (ball) cover and for supporting the second bearing of power transmission shaft, described beam barrel bearing is affixed by the 3rd bolt and described base, described straight tube is fixed on described beam barrel holder top, it is furnished with the second bearing inside described straight tube two ends, described power transmission shaft inserts in described straight tube and is erected on the second described bearing, keeps the central shaft of described power transmission shaft to be on same horizontal line with motor output shaft;Described bearing (ball) cover is arranged on the two ends of described straight tube by the second screw and the second packing ring.
Further, the left and right sides of described mobile platform is respectively provided with platform Anti-inclining L plate; The end of described base is provided with the platform baffle plate preventing mobile platform from skidding off base, and described base is by foundation bolt admittedly on the ground; The lower section of described base snaps in I-shaped bracket.
Further, power transmission, the fixing device of test exemplar and the second device for exerting are arranged on base successively from left to right.
The operation principle of test device is: the device for exerting movement by mobile platform, rotates the second rotating disk and makes to move left and right screw mandrel motion, makes plane exemplar contact with moving left and right smooth flat. When tip contact pressure transducer, slight driving turntable so that it is surface produces certain pressure. In like manner, rotate the first rotating disk, by the first screw mandrel, pressure apparatus is moved down by action of gravity, when move up and down smooth arc-shaped surface touch cylindrical sample piece stop move downward, be rotated further the first rotating disk, the first screw mandrel is driven to move down, when tip contact pressure transducer, slight driving turntable so that it is surface produces certain pressure. In process of the test, open motor, when cylindrical sample piece is in high speed rotating state with plane exemplar, the normal pressure being attached to plane exemplar and cylindrical sample piece surface can produce to stop the frictional resistance of exemplar rotation, frictional resistance is transferred in torque signal bonder with the form of moment of torsion through power transmission shaft, by signal transmitting device, torque is reflected, pressure is by two pressure transducer measurements on device for exerting, processed by computer, obtain the coefficient of frictional resistance of bionic non-smooth surface.
The invention has the beneficial effects as follows: volume is little, simple in construction, cost are low, experimental performance is by force and by many merits such as surrounding test environmental limitation, it is possible to fully meet every test requirements document in process of the test. Can carrying out the test of various shape exemplar, range of application is big; Device for exerting can move all around so that exemplar convenient disassembly. Add Anti-inclining L plate, enhance safety. This drag reduction test device is that one possesses satisfied measurement different rotary surface, not the test device of same piece bionic non-smooth surface coefficient of frictional resistance.
Accompanying drawing explanation
Fig. 1 is the front view of the test device of the present invention.
Fig. 2 is the A-A view of Fig. 1
Fig. 3 is the B-B view of Fig. 1
Fig. 4 is the C-C view of Fig. 1
Fig. 5 is the D direction view of Fig. 1
Fig. 6 is the partial enlarged drawing of Fig. 1
Detailed description of the invention
The present invention is further illustrated below in conjunction with accompanying drawing
With reference to accompanying drawing:
Embodiment 1 a kind of packaged type coefficient of frictional resistance test device of the present invention, including power transmission, the fixing device of test exemplar, device for exerting and auxiliary device, described power transmission is arranged on described auxiliary device, and the clutch end of described power transmission connects the fixing device of described test exemplar, described force application apparatus includes for providing the vertical forcing unit of vertical pressing power and for providing the horizontal forcing unit of horizontal pressing power, described horizontal forcing unit is arranged on the described fixing device of the test exemplar side away from power transmission, and described horizontal forcing unit and described base are slidably connected, described vertical forcing unit is affixed with described horizontal forcing unit, and described vertical forcing unit is positioned at the surface of the described fixing device of test exemplar,
Described power transmission includes motor support base 2, motor 3, flange-face coupling 5, torque signal bonder 9, beam barrel assembly and power transmission shaft 65, described motor support base 2 is loaded on the base 1 of described auxiliary device, described motor 3 is arranged on described motor support base 2, the output shaft of described motor 3 is affixed with the power intake of described torque signal bonder 9 by described flange-face coupling 5, the clutch end of described torque signal bonder 9 is affixed with described power transmission shaft 65 one end by quincunx shaft coupling 10, the other end of described power transmission shaft 65 is affixed with the fixing device of described test exemplar, described power transmission shaft 65 is supported on described base 1 by described bearing assembly,
The fixing device of described test exemplar includes cylindrical sample piece bracing frame 47, cylindrical sample piece 46, plane exemplar bracing frame 45 and plane exemplar 44, described cylindrical sample piece bracing frame 47 is affixed with described power transmission shaft 65, described cylindrical sample piece 46 is enclosed within the outside of described cylindrical sample piece bracing frame 47, and the two is circumferentially fixed by the second flat key 13; Described plane exemplar bracing frame 45 is arranged on the described cylindrical sample piece bracing frame 47 end face away from power transmission shaft 65 side, and described plane exemplar 44 is arranged on the outer face of described plane exemplar bracing frame 45;
Described auxiliary device includes auxiliary and includes base 1, mobile platform 59, platform carrier wheel axle 55, platform baffle plate 34 and tooth bar 35, described tooth bar 35 is horizontally arranged at base 1 one end, and described mobile platform 59 is slidably connected by platform carrier wheel axle 55 and described tooth bar 35.
Further, described vertical forcing unit includes moving up and down bracing frame the 56, first casing, first screw mandrel the 21, second screw mandrel 22, pallet the 55, first pressure transducer the 19, first rotating disk the 69, first disk gear axle 52 and arcuate member 57, the first described casing is arranged on the top of described gripper shoe 56, and the bottom of described gripper shoe 56 is affixed with the second described device for exerting; The upper end of the first described screw mandrel 21 snaps in the first described box house, and the lower end of the first described screw mandrel 21 is installed and moved up and down bracing frame 56; The second described screw mandrel 22 runs through the first described casing, and on the 3rd bearing 23 that the bottom support of the second described screw mandrel 22 is on pallet 55; The first described rotating disk 69 is installed in first described disk gear axle 52 one end, and the other end engages with the second described screw mandrel 22 after stretching into the first described box house, it is ensured that the second described screw mandrel 22 is lower mobile in the vertical direction; Described bracing frame 56 upper surface that moves up and down installs the first pressure transducer 19, the affixed described arcuate member 57 of the described lower surface moving up and down bracing frame 56, and the lower arcuate surface of described arcuate member 57 is mated with the arc surface of described cylinder specimen 46, formed and the pressure face of cylinder specimen 46 pressure.
Further, described horizontal forcing unit includes the second casing, second rotating disk the 30, second disk gear axle, runs through the mobile platform moving left and right screw mandrel the 32, second pressure transducer, moving left and right bracing frame 40, move left and right smooth flat 41 and be slidably connected with base 1 of the second casing, described move left and right bracing frame 40 by moving left and right upper backup pad 37, move left and right lower supporting plate 38 and the 5th screw 39 is arranged in described gripper shoe 56; The described smooth flat 41 that moves left and right is fastened with moving left and right bracing frame 40 by the 5th screw 39; The second described pressure transducer is placed on and moves left and right in bracing frame 40, and described gripper shoe 56 is affixed with described mobile platform 59; The second described rotating disk 30 is installed in second described disk gear axle one end, and the other end engages with the described screw mandrel 32 that moves left and right after stretching into the second described box house, it is ensured that the described screw mandrel 32 that moves left and right moves left and right in the horizontal direction;
Further, the output shaft of described motor 3 is supported on described base 1 by clutch shaft bearing, the Part I of flange-face coupling 5 is connect with described clutch shaft bearing axle by the first flat key 4, the input axle of the Part II of flange-face coupling 5 and described torque signal bonder 9 connects, and wherein the Part I of flange-face coupling 5 and Part II are screwed tight by first bolt the 6, first packing ring 7 and the first nut 8;Described torque signal bonder 9 is placed on torque signal bonder bearing 50, and power transmission shaft 65 and torque signal bonder 9 are linked together by described quincunx shaft coupling 10.
Further, described plane exemplar bracing frame 45 one end is provided with convex shoulder, and described convex shoulder end face is against on one of them end face of described cylindrical sample piece bracing frame 47, it is ensured that described cylindrical sample piece 46 is radially fixed; Described plane exemplar 44 is arranged on described plane exemplar bracing frame 45 by the 4th screw 14.
Further, corresponding 3rd bolt the 15, the 3rd packing ring 16 and back-up ring 17 it is furnished with bottom the first described screw mandrel 21, the upper end of the first described screw mandrel 21 snaps in the first described casing, and the lower end end of thread of the first described screw mandrel 21 is fixed by the 3rd bolt the 15, the 3rd packing ring 16 and back-up ring 17 after sequentially passing through pallet 55 and moving up and down bracing frame 56.
Further, described bracing frame 56 upper surface that moves up and down is provided with the first draw-in groove for snapping in the first pressure transducer 19, and described draw-in groove upper end is furnished with the first sensor Anti-fall cylinder 20 tipping upside down on the first draw-in groove top, described first sensor Anti-fall cylinder 20 is affixed by the first taper bolt 18 and the first draw-in groove sidewall, and described first sensor Anti-fall cylinder 20 is provided with the circular hole being pressed against on the first pressure transducer 19 for the second screw mandrel 22 traverse; Move left and right bracing frame 40 inner surface and be provided with the second draw-in groove for snapping in the second pressure transducer, and the second described draw-in groove upper end is furnished with the second sensor Anti-fall cylinder tipping upside down on draw-in groove top, the second described sensor Anti-fall cylinder is affixed by the second taper bolt and the second draw-in groove sidewall, the second described sensor Anti-fall cylinder is provided with for moving left and right screw mandrel through the circular hole being pressed against on the second pressure transducer, and the end moving left and right screw mandrel is furnished with the 4th nut.
Further, the first described casing includes the first upper box 24 and the second upper box 28, and affixed by the 4th bolt the 25, the 4th packing ring 26 and the first nut 27 between the first described upper box 24 and the first described lower box 28; The second described casing includes the second left box body 29 and the second right case 33, and affixed by the 5th bolt 31 between the second described left box body 29 and the second described left box body 33.
Further, described bearing assembly includes bearing spider 49, straight tube 67, bearing (ball) cover 68 and for supporting the second bearing 64 of power transmission shaft, described beam barrel bearing 49 is affixed with described base 1 by the 3rd bolt 66, described straight tube 67 is fixed on described beam barrel bearing 49 top, it is furnished with the second bearing 64 inside described straight tube 67 two ends, described power transmission shaft 65 inserts in described straight tube 67 and is erected on the second described bearing 64, keeps the central shaft of described power transmission shaft 65 to be on same horizontal line with motor 3 output shaft; Described bearing (ball) cover 68 is arranged on the two ends of described straight tube 67 by the second screw 12 and the second packing ring 11.
Further, the left and right sides of described mobile platform 59 is respectively provided with platform Anti-inclining L plate 36; The end of described base 1 is provided with the platform baffle plate 34 preventing mobile platform from skidding off base, and described base 1 is solid on the ground by foundation bolt 51; The lower section of described base 1 snaps in I-shaped bracket 48.
Further, power transmission, the fixing device of test exemplar and the second device for exerting are arranged on base successively from left to right.
In conjunction with Fig. 1, Fig. 3, Fig. 4, power transmission is described in detail: motor 3 is used for providing power, is positioned at the high order end of device, be fixed on motor support base 2.It is followed successively by flange-face coupling 5 from left to right, is connected with motor bearings by the first flat key 4. Measuring the torque signal bonder 9 of moment of torsion, it is placed on torque signal bonder bearing 50, and power transmission shaft 65 and torque signal bonder 9 are linked together by quincunx shaft coupling 10. Power transmission shaft 65 then relies on bearing arrangement to support. All bearings in power transmission all pass through bolt and are all fixed on base 1, and with base without relative movement. Motor 3 rotates through flange-face coupling 5 band moving axis and rotates, and torque signal bonder 9 is used to the moment of torsion of mensuration axle. By quincunx shaft coupling 10, power being passed to power transmission shaft 65, the fixing device of last motoring ring test exemplar rotates.
In conjunction with Fig. 1, Fig. 3, the fixing device of test exemplar is described in detail: the main body of the fixing device of test exemplar is cylindrical sample piece bracing frame 47. In process of the test, bracing frame 47 plays the effect of installation test exemplar. In cylindrical sample piece 46, the outer surface of cylinder is the surface of test exemplar, and it is placed on cylindrical sample piece bracing frame 47, and right side is compressed by plane exemplar bracing frame 45. For preventing sliding, exemplar is according to designing requirement, it is possible to choose alloy or rubber is tested, if cylindrical sample piece 46 is aluminum alloy materials, between alloy, frictional resistance is less, for preventing relative sliding, is undertaken circumferentially positioned by the second flat key 13. If material is rubber, between alloy and rubber, frictional resistance is bigger, it is only necessary to undertaken compressing by plane exemplar bracing frame 45; Cylindrical sample piece bracing frame 47 is attached by 4 screws 14 with plane exemplar bracing frame 45, and for preventing screw overlapping with key, screw 14 is uniformly distributed in 45 ° of angles with key 13. Plane exemplar 44 is fixed on plane exemplar bracing frame 45 by the 4th screw 14.
In conjunction with Fig. 1, Fig. 2, Fig. 5, Fig. 6, the device for exerting moved up and down is described in detail: in the device for exerting moved up and down, the effect of arcuate member 57 is to contact with cylindrical sample piece 46, and by certain thrust, cylindrical sample piece 46 is applied certain load, so as to produce resistance in the process rotated. The arcuate member 57 moved up and down is by bolt, packing ring, back-up ring and moves up and down bracing frame 56 and is connected. First pressure transducer 19 is placed on and moves up and down on bracing frame 56. First sensor Anti-fall cylinder 20 is placed on first pressure transducer 19 top, positions with the first taper bolt 18. Moving up and down the part that bracing frame 56 is is all be supported by the first screw mandrel 21. The upper end of first sensor Anti-fall cylinder 20 is pallet 55, and the effect of pallet 55 is to place the 3rd bearing 23. What place in the middle of the 3rd bearing 23 is the second screw mandrel 22. For preventing the second screw mandrel 22 to be drawn out of, therefore add two nuts at the two ends of the second screw mandrel 22. First screw mandrel 21 will move up and down bracing frame 56 device and the first upper box 24 assembles. First upper box 24 and the first lower box 28 are by the 4th bolt 25, and the 4th packing ring 26, the 5th nut 27 connects. First disk gear axle 52 and the second screw mandrel 22 are engaged. First fluted disc gear shaft 52 and rotating disk 69 are by split pin 53, and the 5th nut 54 connects. The rotation of the first disk gear axle 52 is completed by rotating disk 69. The whole device for exerting moved up and down is attached by the 6th screw 70 with gripper shoe 37. In process of the test, rotate rotating disk 69, by the first disk gear axle 52, first device for exerting is moved down by action of gravity, when the devices such as arcuate member 57 surface contacts after cylindrical sample piece 46, smooth contact surface stop to bottom offset, it is rotated further rotating disk 69, the second screw mandrel 22 is driven to move down, when tip contact the first pressure transducer 19, fine rotation, make surface produce certain pressure, upwards tightening nut, it is prevented that the second screw mandrel moves up.
In conjunction with Fig. 1, Fig. 3, the device for exerting moved left and right is described in detail: drop in the process of movement for preventing from moving left and right bracing frame 40, moving left and right, upper backup pad 43 adds second taper bolt 42. Second pressure transducer is placed on and moves left and right in bracing frame 40, and the second sensor Anti-fall cylinder is positioned by taper bolt. Move left and right upper backup pad 43 and move left and right lower supporting plate 38 and be connected in gripper shoe 37 by the 7th screw 61. Gripper shoe 37 is fixed by the 5th screw 39 with mobile platform 59. In like manner, move left and right screw mandrel 32 and be placed in the second casing, move left and right two nuts of two ends addition that screw mandrel 32 adds. Second casing is made up of the second right case 33 and the second left box body 29. Second disk gear axle is engaged transmission with moving left and right screw mandrel 32. Its operation principle is similar to the device for exerting moved up and down, in process of the test, move left and right smooth flat 41 to contact with plane exemplar 44, rotate the second rotating disk 30, drive moves left and right screw mandrel 32 and is moved to the left, when tip contact pressure transducer, fine rotation, make surface produce certain pressure.
In conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, auxiliary device is described in detail: mobile platform is capable of the principle that whole device for exerting moves and is: tooth bar 35 is installed on base 1, mobile platform 59 carries out scroll forward and backward by platform carrier wheel axle 55 at tooth bar, in order to prevent whole device for exerting from toppling over, has therefore been separately added into platform Anti-inclining L plate 36 in the left and right sides of platform. Arranging the purpose of platform baffle plate 34 in the rightmost side of base 1 is prevent mobile platform from landing base 1. In order to strengthen the intensity of base 1, put into I-shaped bracket 48 in the lower section of base. Whole device is solid on the ground by foundation bolt 51.
The operation principle of test device is: the device for exerting movement by mobile platform, rotates rotating disk 30 respectively and makes to move left and right screw mandrel 32 and move, and makes plane exemplar 44 and moves left and right smooth flat and 41 contact. When tip contact pressure transducer, slight driving turntable so that it is surface produces certain pressure. In like manner, rotate rotating disk 69, by vertically moving screw mandrel 22, pressure apparatus is moved down by action of gravity, when move up and down smooth arc-shaped surface 57 touch cylindrical sample piece 46 stop move downward, be rotated further rotating disk 69, vertically mobile screw mandrel 22 is driven to move down, when tip contact pressure transducer, slight driving turntable 69 so that it is surface produces certain pressure. In process of the test, open motor 3, when cylindrical sample piece 46 is in high speed rotating state with plane exemplar 44, the normal pressure being attached to plane exemplar 44 and cylindrical sample piece 46 surface can produce to stop the frictional resistance of exemplar rotation, frictional resistance is transferred in torque signal bonder 9 with the form of moment of torsion through power transmission shaft 69, by signal transmitting device, torque is reflected, pressure is by two pressure transducer measurements on device for exerting, processed by computer, obtain the coefficient of frictional resistance of bionic non-smooth surface.
Content described in this specification embodiment is only enumerating of the way of realization to inventive concept; protection scope of the present invention is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also include those skilled in the art according to present inventive concept it is conceivable that equivalent technologies means.
Claims (10)
1. a packaged type coefficient of frictional resistance test device, it is characterized in that: include power transmission, the fixing device of test exemplar, device for exerting and auxiliary device, described power transmission is arranged on described auxiliary device, and the clutch end of described power transmission connects the fixing device of described test exemplar, described force application apparatus includes for providing the vertical forcing unit of vertical pressing power and for providing the horizontal forcing unit of horizontal pressing power, described horizontal forcing unit is arranged on the described fixing device of the test exemplar side away from power transmission, and described horizontal forcing unit and described base are slidably connected, described vertical forcing unit is affixed with described horizontal forcing unit, and described vertical forcing unit is positioned at the surface of the described fixing device of test exemplar,
Described power transmission includes motor support base, motor, flange-face coupling, torque signal bonder, beam barrel assembly and power transmission shaft, described motor support base is loaded on the base of described auxiliary device, described motor is arranged on described motor support base, the output shaft of described motor is affixed with the power intake of described torque signal bonder by described flange-face coupling, the clutch end of described torque signal bonder is affixed by quincunx shaft coupling and described power transmission shaft one end, the other end of described power transmission shaft is affixed with the fixing device of described test exemplar, described power transmission shaft is supported on described base by described bearing assembly,
The fixing device of described test exemplar includes cylindrical sample piece bracing frame, cylindrical sample piece, plane exemplar bracing frame and plane exemplar, described cylindrical sample piece bracing frame is affixed with described power transmission shaft, described cylindrical sample piece is enclosed within the outside of described cylindrical sample piece bracing frame, and the two is circumferentially fixed by the second flat key; Described plane exemplar bracing frame is arranged on the described cylindrical sample piece bracing frame end face away from power transmission shaft side, and described plane exemplar is arranged on the outer face of described plane exemplar bracing frame;
Described auxiliary device includes auxiliary and includes base, mobile platform, platform carrier wheel axle, platform baffle plate and tooth bar, and described tooth bar is horizontally arranged at base one end, and described mobile platform is slidably connected by platform carrier wheel axle and described tooth bar.
2. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 1, it is characterized in that: described vertical forcing unit includes moving up and down bracing frame, the first casing, the first screw mandrel, the second screw mandrel, pallet, the first pressure transducer, the first rotating disk, the first disk gear axle and arcuate member, the first described casing is arranged on the top of described gripper shoe, and the bottom of described gripper shoe is affixed with the second described device for exerting; The upper end of the first described screw mandrel snaps in the first described box house, and the lower end of the first described screw mandrel is installed and moved up and down bracing frame; The second described screw mandrel runs through the first described casing, and on the 3rd bearing that the bottom support of the second described screw mandrel is on pallet; The first described rotating disk is installed in first described disk gear axle one end, and the other end engages with the second described screw mandrel after stretching into the first described box house, it is ensured that the second described screw mandrel is lower mobile in the vertical direction; The described bracing frame upper surface that moves up and down installs the first pressure transducer, the affixed described arcuate member of the described lower surface moving up and down bracing frame, and the lower arcuate surface of described arcuate member is mated with the arc surface of described cylinder specimen, formed and the pressure face of cylinder specimen pressure.
3. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 1, it is characterized in that: described horizontal forcing unit include the second casing, the second rotating disk, the second disk gear axle, run through the second casing move left and right screw mandrel, the second pressure transducer, the mobile platform that moves left and right bracing frame, move left and right smooth flat and be slidably connected with base, described move left and right bracing frame by moving left and right upper backup pad, move left and right lower supporting plate and the 5th screw is arranged in described gripper shoe;The described smooth flat that moves left and right is fastened with moving left and right bracing frame by the 5th screw; The second described pressure transducer is placed on and moves left and right in bracing frame, and described gripper shoe is affixed with described mobile platform; The second described rotating disk is installed in second described disk gear axle one end, and the other end engages with the described screw mandrel that moves left and right after stretching into the second described box house, it is ensured that the described screw mandrel that moves left and right moves left and right in the horizontal direction;
4. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 1, it is characterized in that: the output shaft of described motor is supported on described base by clutch shaft bearing, the Part I of flange-face coupling is connect by the first flat key and described clutch shaft bearing axle, the input axle of the Part II of flange-face coupling and described torque signal bonder connects, and wherein the Part I of flange-face coupling and Part II are screwed tight by the first bolt, the first packing ring and the first nut; Described torque signal bonder is placed on torque signal bonder bearing, and power transmission shaft and torque signal bonder are linked together by described quincunx shaft coupling.
5. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 3, it is characterized in that: described plane exemplar bracing frame one end is provided with convex shoulder, described convex shoulder end face is against on one of them end face of described cylindrical sample piece bracing frame, it is ensured that described cylindrical sample piece is radially fixed; Described plane exemplar is arranged on described plane exemplar bracing frame by the 4th screw.
6. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 2, it is characterized in that: bottom the first described screw mandrel, be furnished with corresponding 3rd bolt, the 3rd packing ring and back-up ring, the upper end of the first described screw mandrel snaps in the first described casing, and the lower end end of thread of the first described screw mandrel is fixed by the 3rd bolt, the 3rd packing ring and back-up ring after sequentially passing through pallet and moving up and down bracing frame.
7. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 2, it is characterized in that: the described bracing frame upper surface that moves up and down is provided with the first draw-in groove for snapping in the first pressure transducer, and described draw-in groove upper end is furnished with the first sensor Anti-fall cylinder tipping upside down on the first draw-in groove top, described sensor Anti-fall cylinder is affixed by the first taper bolt and the first draw-in groove sidewall, and described sensor Anti-fall cylinder is provided with the circular hole being pressed against on the first pressure transducer for the second screw mandrel traverse; Move left and right bracing frame inner surface and be provided with the second draw-in groove for snapping in the second pressure transducer, and the second described draw-in groove upper end is furnished with the second sensor Anti-fall cylinder tipping upside down on draw-in groove top, the second described sensor Anti-fall cylinder is affixed by the second taper bolt and the second draw-in groove sidewall, the second described sensor Anti-fall cylinder is provided with for moving left and right screw mandrel through the circular hole being pressed against on the second pressure transducer, and the end moving left and right screw mandrel is furnished with the 4th nut.
8. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 2, it is characterized in that: the first described casing includes the first upper box and the second upper box, and affixed by the 4th bolt, the 4th packing ring and the first nut between the first described upper box and the first described lower box; The second described casing includes the second left box body and the second right case, and affixed by the 5th bolt between the second described left box body and the second described left box body.
9. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 1, it is characterized in that: described bearing assembly includes bearing spider, straight tube, bearing (ball) cover and for supporting the second bearing of power transmission shaft, described beam barrel bearing is affixed by the 3rd bolt and described base, described straight tube is fixed on described beam barrel holder top, it is furnished with the second bearing inside described straight tube two ends, described power transmission shaft inserts in described straight tube and is erected on the second described bearing, the central shaft keeping described power transmission shaft is on same horizontal line with motor output shaft, described bearing (ball) cover is arranged on the two ends of described straight tube by the second screw and the second packing ring.
10. a kind of packaged type coefficient of frictional resistance test device as claimed in claim 9, it is characterised in that: the left and right sides of described mobile platform is respectively provided with platform Anti-inclining L plate; The end of described base is provided with the platform baffle plate preventing mobile platform from skidding off base, and described base is by foundation bolt admittedly on the ground; The lower section of described base snaps in I-shaped bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872272.0U CN205317642U (en) | 2015-11-04 | 2015-11-04 | Movable coefficient of frictional resistance testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520872272.0U CN205317642U (en) | 2015-11-04 | 2015-11-04 | Movable coefficient of frictional resistance testing arrangement |
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| Publication Number | Publication Date |
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| CN205317642U true CN205317642U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520872272.0U Withdrawn - After Issue CN205317642U (en) | 2015-11-04 | 2015-11-04 | Movable coefficient of frictional resistance testing arrangement |
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| CN (1) | CN205317642U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372174A (en) * | 2015-11-04 | 2016-03-02 | 浙江工业大学 | Movable frictional resistance coefficient testing device |
| CN108398148A (en) * | 2018-01-17 | 2018-08-14 | 蚌埠市龙子湖区金力传感器厂 | A kind of force snesor fatigue detection device |
| CN111220501A (en) * | 2019-12-04 | 2020-06-02 | 西南石油大学 | On-line evaluation method for drag reducer drag reduction effect in oil pipeline |
| CN112067548A (en) * | 2020-09-24 | 2020-12-11 | 中国计量大学 | Portable surface resistance coefficient testing arrangement |
-
2015
- 2015-11-04 CN CN201520872272.0U patent/CN205317642U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372174A (en) * | 2015-11-04 | 2016-03-02 | 浙江工业大学 | Movable frictional resistance coefficient testing device |
| CN105372174B (en) * | 2015-11-04 | 2018-03-06 | 浙江工业大学 | A kind of packaged type coefficient of frictional resistance test device |
| CN108398148A (en) * | 2018-01-17 | 2018-08-14 | 蚌埠市龙子湖区金力传感器厂 | A kind of force snesor fatigue detection device |
| CN111220501A (en) * | 2019-12-04 | 2020-06-02 | 西南石油大学 | On-line evaluation method for drag reducer drag reduction effect in oil pipeline |
| CN111220501B (en) * | 2019-12-04 | 2022-04-29 | 西南石油大学 | On-line evaluation method for drag reducer drag reduction effect in oil pipeline |
| CN112067548A (en) * | 2020-09-24 | 2020-12-11 | 中国计量大学 | Portable surface resistance coefficient testing arrangement |
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