CN110646341A - Testing device capable of realizing frictional resistance between non-smooth surface fixing wall surfaces - Google Patents
Testing device capable of realizing frictional resistance between non-smooth surface fixing wall surfaces Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 94
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- G—PHYSICS
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- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
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Abstract
The invention discloses a testing device capable of realizing frictional resistance between non-smooth surface and fixed wall surfaces, and relates to a resistance testing device, which comprises a testing base, a first testing installation area and a second testing installation area, wherein the first testing installation area and the second testing installation area are sequentially arranged on the testing base, the first testing installation area comprises a power transmission device, the power transmission device comprises a driving device and a torque measuring device, the driving device is in driving connection with the torque measuring device, the second testing installation area comprises a pressing device and a moving device, the power transmission device is coaxially connected with the pressing device, the pressing device is arranged on the moving device, and the moving device is movably connected with the testing base, so that the testing device is multifunctional, small in occupied area, low in cost, convenient to operate and easy to disassemble.
Description
Technical Field
The invention relates to a resistance testing device, in particular to a testing device capable of realizing frictional resistance between non-smooth surface fixing wall surfaces.
Background
Along with the development of the times, the concept of energy utilization is gradually changed, the national development of energy-saving policy advocates sustainable development from the original inexhaustible energy to the shortage of energy, and in order to embody the normative and serious energy-saving performance of China, the energy-saving law of the people's republic of China is established in 1997, which embodies the attention of the current times on energy conservation and energy utilization. In our lives, energy is indispensable, energy is used everywhere, and energy is needed in all aspects, such as various household appliances, various vehicles, various water conservancy facilities and the like. The problem of energy shortage not only occurs in China, but also exists in the world, and energy-saving measures are adopted in the world to achieve the effect of energy saving well.
In the design of various tools, people are always pursuing efficient energy utilization, i.e. better performance with less energy consumption. While humans are looking for ways to conserve energy as much as possible, one of the main ways is to minimize frictional resistance. The frictional resistance is everywhere, and when an object moves at a high speed, the object is undoubtedly subjected to the frictional resistance, and the frictional resistance is large enough to account for 2/5, for example, when a supersonic aircraft using an air-breathing engine moves at a high speed, the frictional resistance can be even half of the total resistance. Reducing frictional resistance and thus energy consumption is a better energy-saving way, which makes it important to take effective measures to effectively reduce frictional resistance. Many scholars at home and abroad carry out a great deal of theoretical deduction and experimental research on the problem of reducing the friction resistance by taking measures, and obtain good theoretical results in several aspects. The bionic non-smooth surface has good resistance reducing effect, is gradually recognized and advocated by domestic and foreign scientists, and a plurality of theoretical achievements obtained by the bionic non-smooth surface are put into practical application of various projects. In this way, the friction resistance is reduced, rather than approaching a smooth wall, and the fluid flow resistance is reduced, which is obviously different from the friction resistance between different object surfaces. Scientists are now studying biological surfaces and some biomimetic non-smooth surfaces have been applied to various projects on a small scale, but their studies are not sufficient to reach a large scale, wide application to various places and researchers need to study them more deeply. In the middle of the 80's of the 20 th century, the name of a bionic non-smooth surface begins to appear, and the bionic research has a breakthrough in name and is a theoretical explanation and summary of the external morphology of soil organisms. The basis for the establishment of biomimetic non-smooth surfaces is the non-smooth effect in interfacial adhesion systems. The basic content of a non-smooth surface is that a non-smooth surface can reduce the tangential resistance to relative movement of the surface.
With the continuous and deep research on the resistance reduction technology, resistance testing devices such as wind tunnels, water tanks and the like are often needed in the prior art, and the devices are large in occupied area, high in cost, complex in operation, difficult to disassemble, high in testing conditions, incapable of testing at any time and any place and the like, and are difficult to popularize in common laboratories. Moreover, some frictional resistance testing devices cannot control the pressing force, realize a control experiment, and cannot test non-smooth surfaces that cannot be shaped.
Disclosure of Invention
Based on the problems of heaviness, difficulty in carrying and difficulty in dismounting existing in the conventional friction resistance testing device, and in order to solve the problems of heaviness, difficulty in carrying and difficulty in dismounting existing in the conventional friction resistance testing device, the invention provides a testing device capable of realizing friction resistance between non-smooth surface and fixed wall surfaces, so that the following technical scheme is provided aiming at the technical problems of heaviness, difficulty in carrying and dismounting existing in the conventional friction resistance testing device:
the invention provides a testing device capable of realizing frictional resistance between non-smooth surface and fixed wall surfaces, which comprises a test base, a first test mounting area and a second test mounting area, wherein the first test mounting area and the second test mounting area are sequentially arranged on the test base, the first test mounting area comprises a power transmission device, the power transmission device comprises a driving device and a torque measuring device, the driving device is in driving connection with the torque measuring device, the second test mounting area comprises a pressing device and a moving device, the power transmission device is coaxially connected with the pressing device, the pressing device is arranged on the moving device, and the moving device is movably connected with the test base.
Further, the power transmission device further comprises a power shaft fixing assembly, and the power shaft fixing assembly is connected with the torque measuring device.
Furthermore, the compressing device comprises a transmission shaft fixing assembly, a non-smooth wall surface assembly and a smooth wall surface assembly, the transmission shaft fixing assembly is connected with the non-smooth wall surface, the non-smooth wall surface assembly is provided with a non-smooth wall surface, the smooth wall surface assembly is provided with a smooth wall surface, and the non-smooth wall surface and the smooth wall surface are movably and oppositely compressed.
Furthermore, the moving device comprises a guide rail, at least one guide rail platform arranged on the guide rail and at least one power assembly, wherein the guide rail platform arranged on the guide rail is movably connected with the power assembly along the guide rail.
Further, drive arrangement includes motor, motor support and first shaft coupling, wherein the motor is installed on the motor support, torque measurement device includes second shaft coupling, torque sensor and sensor support, torque sensor installs on the sensor support, the motor has the rotation axis, the rotation axis with torque sensor's input is through first coupling joint, the fixed subassembly of power shaft includes first set of barrel, an at least first bearing and power shaft, first bearing cover is established on the power shaft, first set of barrel has first axial through-hole, first set of barrel cover is established on the first bearing, and the power shaft with first axial through-hole looks adaptation is connected.
Further, the transmission shaft fixing component comprises at least one second bearing, a second sleeve body, a tooth-embedded coupler and a transmission shaft, the second bearing sleeve is arranged on the transmission shaft, the second sleeve body is provided with a second axial through hole, the second sleeve body is arranged on the second bearing, the power shaft is in adaptive connection with the second axial through hole, the power shaft is in adaptive connection with the transmission shaft through the tooth-embedded coupler, the non-smooth wall surface component comprises a sample piece supporting frame and a non-smooth wall surface cover plate, the non-smooth wall surface cover plate is in groove connection with the sample piece supporting frame, the smooth wall surface component comprises a smooth wall surface pressing plate, a pressing plate supporting cylinder body, a pressure sensor, a pressing screw and a pressing handle, the smooth wall surface pressing plate is in groove connection with one end of the pressure supporting cylinder body opposite to the non-smooth wall surface cover plate, and the pressure sensor is arranged on the inner end surface, and the pressing handle is connected with the pressing screw rod.
Further, the moving device comprises a first guide rail platform arranged on the guide rail and a second guide rail platform arranged on the guide rail, the first guide rail platform arranged on the guide rail is sequentially arranged on the guide rail, the power assembly comprises a push rod motor bracket, a push rod motor and a push rod motor support, the push rod motor comprises a first push rod motor and a second push rod motor, the push rod motor support comprises a first push rod motor support and a second push rod motor support, one end of the first guide rail platform and one end of the second guide rail platform are respectively and fixedly connected with the first push rod motor support and the second push rod motor support, the first push rod motor support is connected with the first push rod motor, the first push rod motor is arranged on the push rod motor bracket, the push rod motor support is fixedly connected to the test base, and the second push rod motor is fixedly connected to the vertical surface of the test base.
Furthermore, the moving device also comprises an anti-tilting bracket which is fixedly connected to the side surface of the outer end of the push rod motor bracket.
Further, the guide rail is a V-shaped guide rail.
Further, the power shaft fixing assembly further comprises a first end cover and a second end cover, the first end cover and the second end cover are respectively covered at two ends of the first sleeve body, the transmission shaft fixing assembly further comprises a third end cover and a fourth end cover, and the third end cover and the fourth end cover are respectively covered at two ends of the second sleeve body.
The testing device for the friction resistance between the non-smooth surface and the fixed wall surface has the advantages of small occupied area and convenience in carrying.
Another advantage of the present invention is to provide a device for testing frictional resistance between fixed walls with a non-smooth surface, which is relatively simple in structure and convenient to operate.
Another advantage of the present invention is to provide a device for testing frictional resistance between fixed walls with a non-smooth surface, which is detachable, has low testing conditions, and can be used for testing at any time and any place.
The invention has another advantage of providing a testing device capable of realizing the frictional resistance between the non-smooth surface and the fixed wall surface, which can be popularized in common laboratories and meet the requirements of strong experiment.
Another advantage of the present invention is to provide a device for testing frictional resistance between fixed walls with a non-smooth surface, which is small and low in cost.
The invention has another advantage of providing a testing device capable of realizing the frictional resistance between the solid and fixed wall surfaces with the non-smooth surface, and the testing device capable of realizing the frictional resistance between the solid and fixed wall surfaces with the non-smooth surface simultaneously controls the pressing force of the testing device capable of realizing the frictional resistance between the solid and fixed wall surfaces with the non-smooth surface on the basis of evaluating the resistance reduction effect of the bionic non-smooth solid and fixed wall surface structure, realizes a contrast experiment and can test the non-smooth surfaces with different shapes.
The invention also has the advantage of providing a device for testing the frictional resistance between the non-smooth surface and the fixed wall surface, and the device for testing the frictional resistance between the non-smooth surface and the fixed wall surface calculates the drag reduction rate by collecting the torque of the non-smooth wall surfaces with different shapes, thereby obtaining the drag reduction effect.
Another advantage of the present invention is to provide a device for testing frictional resistance between fixed walls with a non-smooth surface, which has more functions than the prior art.
Drawings
FIG. 1 is a front view of a testing device for testing frictional resistance between non-smooth surfaces and fixed walls according to the present invention;
FIG. 2 is a cross-sectional view at A of a testing apparatus for testing frictional resistance between a non-smooth surface and a fixed wall according to the present invention;
FIG. 3 is a cross-sectional view at B of a testing apparatus for testing frictional resistance between a non-smooth surface and a fixed wall according to the present invention;
FIG. 4 is an enlarged view of a portion of the apparatus for testing frictional resistance between non-smooth surfaces and fixed walls, taken at location I;
FIG. 5 is an enlarged view of a portion of the apparatus for testing frictional resistance between a non-smooth surface and a fixed wall surface at II.
In the figure: a motor-1, a motor support-1A, a first coupler-2, a sensor support-3, a torque sensor-4, a second coupler-5, a first end cap-6, a first sleeve-7, a second end cap-8, a power shaft-9, a jaw coupler-10, a third end cap-11, a second sleeve-12, a transmission shaft-13, a fourth end cap-14, a sample piece support frame-15, a locking nut-16, a non-smooth wall surface cover plate-17, a smooth wall surface press plate-18, a pressure sensor-19, a press plate support cylinder-20, a press screw rod-21, a press handle-22, a first guide rail platform-23, a guide rail-24, a push rod motor support-25, an anti-tilt support-26, a first push rod motor-27, a torque sensor-4, a second guide rail-14, a sample piece support frame, The device comprises a first push rod motor support-28, a third ribbed plate-29, a second guide rail platform-30, a second ribbed plate-31, a second push rod motor support-32, a second push rod motor-33, a first ribbed plate-34, a test base-35, a first test installation area-36 and a second test installation area-37.
Detailed Description
The invention is further described below in conjunction with fig. 1-5 and the detailed description.
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.
It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be constructed and operated in a particular orientation and thus are not to be considered limiting.
The invention provides a testing device capable of realizing frictional resistance between non-smooth surface and fixed wall surfaces, which comprises a test base 35, a first test mounting area 36 and a second test mounting area 37 which are sequentially arranged on the test base 35, wherein the first test mounting area 36 comprises a power transmission device, the power transmission device comprises a driving device and a torque measuring device, the driving device is in driving connection with the torque measuring device, the second test mounting area 37 comprises a pressing device and a moving device, the power transmission device is coaxially connected with the pressing device, the pressing device is arranged on the moving device, the moving device is movably connected with the test base 35, resistance testing devices such as wind tunnels, water channels and the like are not used, the occupied area is small, small volume, relative portability, relatively simple structure and convenient operation. The term coaxial should be interpreted broadly, in a conceptual sense, in an immaterial sense, and in the sense that the components are coaxial.
Further, the power transmission device further comprises a power shaft fixing assembly, and the power shaft fixing assembly is connected with the torque measuring device.
Furthermore, the compressing device comprises a transmission shaft fixing assembly, a non-smooth wall surface assembly and a smooth wall surface assembly, the transmission shaft fixing assembly is connected with the non-smooth wall surface, the non-smooth wall surface assembly is provided with a non-smooth wall surface, the smooth wall surface assembly is provided with a smooth wall surface, and the non-smooth wall surface and the smooth wall surface are movably and oppositely compressed.
Further, the moving device comprises a guide rail 24, at least one guide rail platform arranged on the guide rail 24, and at least one power assembly, wherein the guide rail platform arranged on the guide rail 24 is movably connected with the power assembly along the guide rail 24.
Further, drive arrangement includes motor 1, motor support 1A and first shaft coupling 2, wherein motor 1 installs on motor support 1A, torque measurement device includes second shaft coupling 5, torque sensor 4 and sensor support 3, torque sensor 4 installs on the sensor support 3, motor 1 has the rotation axis, the rotation axis with torque sensor 4's input is connected through first shaft coupling 2, the fixed subassembly of power shaft includes first sleeve body, an at least first bearing and power shaft 9, first bearing cover is established on power shaft 9, first sleeve body has first axial through-hole, first sleeve body cover is established on the first bearing, and power shaft 9 with first axial through-hole adaptation connection. The first sleeve body includes a first sleeve 7 and a first rib 34, and the first sleeve body and the first rib 34 are preferably integrally fixed, but not limited to this connection manner, for example, the first sleeve 7 and the first rib 34 are detachably (e.g., by plugging) connected.
The motor 1 provides power for the whole testing device, the motor 1 is provided with an output shaft, the output shaft is connected with one end of the torque sensor 4 through the first coupler 2, the torque sensor 4 is used for measuring torque, and the drag reduction rate is calculated through the torque, so that the drag reduction effect of a non-smooth wall surface is evaluated. The torque sensor 4 is fixedly installed on the sensor support 3 through bolts, the sensor support 3 is fixed on the test base 35, the other end of the torque sensor 4 is connected with a power shaft 9 of the power shaft fixing component through the second coupler 5, and the power shaft fixing component is fixed on the test base 35 through the first rib plate 34.
Further, the fixed subassembly of transmission shaft includes an at least second bearing, second sleeve body, tooth-embedded shaft coupling 10 and transmission shaft, the second bearing cover is established on the transmission shaft, the second sleeve body has second axial through-hole, the second sleeve body cover is established on the second bearing, and power shaft 9 with second axial through-hole adaptation is connected, power shaft 9 with the transmission shaft passes through tooth-embedded shaft coupling 10 and is connected, the non-smooth wall subassembly includes appearance support frame 15 and non-smooth wall apron 17, non-smooth wall apron 17 with appearance support frame 15 spiro union, the smooth wall subassembly includes smooth wall clamp plate 18, clamp plate support barrel, pressure sensor 19, compression screw 21 and compresses tightly handle 22, smooth wall clamp plate 18 connects with a termination groove of the pressure support barrel relative with non-smooth wall apron 17, the pressure sensor 19 is attached to the inner end face of the smooth-wall-surface pressing plate 18 and is arranged in the pressure supporting cylinder, a cylinder hole is axially formed in the other end of the pressure supporting cylinder, the compression screw 21 is connected with the pressure sensor 19 through the cylinder hole, and the compression handle 22 is connected with the compression screw 21. The second sleeve body includes a second sleeve 12 and a second rib 31, and the second sleeve 12 and the second rib 31 are preferably integrally connected, but not limited to this connection manner, for example, the second sleeve 12 and the second rib 31 are detachably (e.g., by plugging) connected. The pressing plate supporting cylinder includes a pressing plate supporting cylinder 20 and a third rib plate 29, and the pressing plate supporting cylinder 20 is preferably fixedly connected to the third rib plate 29, but not limited to this connection manner, for example, the pressing plate supporting cylinder 20 is detachably connected (e.g., plugged) to the third rib plate 29.
Particularly, jaw coupling 10 simple structure, overall dimension is little, and relative movement or relative rotation can not take place for the diaxon that couples after the joint to convenient operation can transmit great torque, connects or the separation needs go on when static, jaw coupling 10 one end is connected the one end of the fixed axle of the fixed subassembly of power shaft, its other end with the one end of the transmission shaft of the fixed subassembly of transmission shaft is connected, the transmission shaft other end of the fixed subassembly of transmission shaft with sample support frame 15 is connected, sample support frame 15 has a connecting hole, the transmission shaft pass through lock nut 16 with connecting hole fixed connection. The non-smooth wall surface cover plate 17 is installed on the sample piece supporting frame 15, one end wall surface of the non-smooth wall surface cover plate 17 is of a non-smooth structure, the non-smooth wall surface of the non-smooth wall surface cover plate 17 is in contact with one end of the smooth wall surface cover plate, the smooth wall surface pressing plate 18 is installed on the end surface of the pressing plate supporting cylinder 20, the other end of the smooth wall surface pressing plate 18 is in contact with the pressure sensor 19, a groove is formed in the cylinder body of the pressing plate supporting cylinder 20 and used for installing the pressure sensor 19 and the smooth wall surface cover plate, the smooth wall surface pressing plate 18 is fixed with the pressing plate supporting cylinder 20 through the groove, the smooth wall surface pressing plate 18 is placed to rotate but not limit the smooth wall surface pressing plate 18 to move horizontally, the smooth wall surface of the smooth wall surface pressing plate 18 is in contact with the non-smooth wall surface of the non-smooth wall surface pressing plate, one end of the compression screw 21 is connected with the other end face of the pressure sensor 19 through a cylinder hole, and the compression handle 22 is installed at the other end of the compression screw 21.
It is worth mentioning that the lower end of the first rib plate 34 is fixed on the test base 35, the test base 35 is integrally in a step shape and turns right from left, two steps are provided, the guide rail 24 and the push rod motor support 25 are fixed on the first step, the motor support 1A, the sensor support 3 and the first rib plate 34 are fixed on the second step, and the second push rod motor 33 is fixed on the vertical surface between the first step and the second step through bolts.
Further, the moving device comprises a first guide rail platform 23 arranged on the guide rail 24 and a second guide rail platform 30 arranged on the guide rail 24, the first guide rail platform 23 arranged on the guide rail 24 is sequentially arranged on the guide rail 24, the power assembly comprises a push rod motor support 25, a push rod motor and a push rod motor support, the push rod motor comprises a first push rod motor 27 and a second push rod motor 33, the push rod motor support comprises a first push rod motor support 28 and a second push rod motor support 32, one end of the first guide rail platform 23 and one end of the second guide rail platform 30 are respectively and fixedly connected with the first push rod motor support 28 and the second push rod motor support 32, the first push rod motor support 28 is connected with the first push rod motor 27, the first push rod motor 27 is arranged on the push rod motor support 25, the push rod motor support 25 is fixedly connected on the test base 35, the second push rod motor 33 is fixedly connected to a vertical surface of the test base 35.
Specifically, first guide rail platform 23 with second guide rail platform 30 installs in proper order on the guide rail 24, first guide rail platform 23 with second guide rail platform 30 with adopt bolt, nut fixed between the guide rail 24 the right-hand member of first guide rail platform 23 with the left end of second guide rail platform 30 welded fastening respectively first push rod motor support 28 with second push rod motor support 32, and first push rod motor 27 with first push rod motor support 28 passes through pin connection, first push rod motor 27 is installed on push rod motor support 25, push rod motor support 25 shape includes but not limited to the L type.
Further, the moving device further comprises an anti-tilting bracket 26, and the anti-tilting bracket 26 is fixedly connected to the outer end side surface of the push rod motor bracket 25. It is worth mentioning that the anti-tilt bracket 26 is fixed on the outer end side of the push rod motor bracket 25 through bolts, that is, the anti-tilt bracket 26 is installed at the bent position of the push rod motor bracket 25. The push rod motor bracket 25 is welded and fixed on the test base 35. The second push rod motor support 32 is connected with the second push rod motor 33 through a pin, and the second push rod motor 33 is fixed on the vertical surface of the test base 35 through a bolt. The connection mode includes but is not limited to the connection mode.
Further, the track 24 includes, but is not limited to, a V-shaped track 24 to facilitate the removable mounting of the first track platform 23 and the second track platform 30 to assist in testing non-smooth surfaces of different shapes.
Further, the power shaft fixing assembly further comprises a first end cover 6 and a second end cover 8, the first end cover 6 and the second end cover 8 are respectively covered at two end portions of the first sleeve body, the transmission shaft fixing assembly further comprises a third end cover 11 and a fourth end cover 14, and the third end cover 11 and the fourth end cover 14 are respectively covered at two end portions of the second sleeve body.
It is worth mentioning that one end of the power shaft 9 is connected with the second coupling 5 through a flat key, two first bearings are mounted on the middle portion of the power shaft 9, a certain distance is provided between the two first bearings, the power shaft 9 with the two first bearings is placed in the first sleeve 7 and fixed in the first sleeve 7, and the two first bearings are fixed and positioned through the shaft space and the first end cover 6 and the second end cover 8. The other end of the power shaft 9 is connected with the jaw coupler 10 through a flat key. The first sleeve 7 is sleeve-shaped, and the first end cover 6 and the second end cover 8 are installed at the left end and the right end of the first sleeve 7 through screws. The power shaft 9 passes through the first end cover 6, the first sleeve 7 and the second end cover 8 respectively, and the power shaft fixing component serves as a support of the power shaft 9.
It is worth mentioning that one end of the transmission shaft is connected with the jaw coupler 10 through a flat key, two second bearings are mounted on the middle portion of the transmission shaft, a certain distance is reserved between the two second bearings, the power shaft 9 with the two second bearings is arranged in the second sleeve 12 and fixed in the second sleeve 12, and the two second bearings are fixedly positioned through an inter-shaft space and the third end cover 11 and the fourth end cover 14. The other end of the transmission shaft is connected with the sample piece supporting frame 15 and is limited by the flat key and the locking nut 16, the sample piece supporting frame 15 moves axially and rotates radially, the second sleeve 12 is cylindrical, and the left end and the right end of the second sleeve 12 are installed by screws on the third end cover 11 and the fourth end cover 14. The drive shaft passes through the third end cap 11, the second sleeve 12 and the fourth end cap 14, respectively, and the drive shaft fixing assembly serves as a bracket for the drive shaft. The end face of the sample piece support frame 15 in the axial direction is provided with a plurality of holes.
It is worth noting that, more precisely, the sample piece support frame 15 is in a cylinder concave shape, the end surface in the axial direction is provided with 5 holes, the center hole is used for installation, the other 4 holes are evenly distributed around the circle center to reduce the weight, the right end of the sample piece support frame is fixed with a non-smooth wall surface cover plate 17 through screws, the non-smooth wall surface cover plate 17 is contacted with a smooth wall surface press plate 18, the right end surface of the non-smooth wall surface cover plate 17 is provided with a convex non-smooth wall surface which is contacted with a convex smooth wall surface on the left end surface of the smooth wall surface press plate 18, the circle centers of the two are on the same axis, the upper part and the lower part of the smooth wall surface press plate 18 are respectively provided with a convex groove, the right end surface of the smooth wall surface press plate 18 is contacted with one end surface of a pressure sensor 19, the smooth wall surface press plate 18 and the pressure sensor 19 are both installed in a press plate support cylinder 20, the pressing plate supporting barrel 20 is fixed on the first guide rail platform 23 through the first rib plate 34, the pressing screw 21 transmits the circle center of the pressing plate supporting barrel 20 to be in contact with the pressure sensor 19, a through hole in the circle center of the pressing plate supporting barrel 20 is provided with threads, the other end of the pressing screw 21 is connected with the pressing handle 22, rotary motion is converted into linear motion, and the test is convenient.
The working principle is as follows: when a test is needed, the second push rod motor 33 is started and shortened firstly, the second push rod motor 33 drives the second guide rail platform 30 to move leftwards, the second push rod motor 33 is closed when the jaw coupler 10 is embedded, then the motor 1 is started, the output shaft of the motor 1 drives the power shaft 9 to rotate, the power shaft 9 drives the transmission shaft to rotate through the jaw coupler 10, the sample piece support frame 15 on the transmission shaft rotates together, at the moment, the first push rod motor 27 is opened to extend, the first guide rail platform 23 is driven to move leftwards, the smooth wall surface pressing plate 18 is driven to move towards the non-smooth wall surface cover plate 17, when the left end of the first guide rail platform 23 is contacted with the right end of the second guide rail platform 30, the first push rod motor 27 is closed, then the pressing handle 22 is rotated, the pressing screw rod 21 moves leftwards, and the pressure sensor 19 and the smooth wall surface pressing plate 18 are driven to move leftwards, when the pressure sensor 19 transmits a proper value, the rotation of the pressing handle 22 is stopped, and the torque after the smooth wall pressing plate 18 is contacted with the non-smooth wall cover plate 17 is transmitted to the torque sensor 4 through the power shaft 9, so that the torque is measured, and a friction resistance test is completed. And after the test is finished, the motor 1 is turned off, the first push rod motor 27 is started to be shortened, the first guide rail platform 23 is driven to move rightwards, the first push rod motor 27 is turned off when the proper position is reached, the non-smooth wall surface cover plate 17 is replaced, the second push rod motor 33 is turned on to be extended, the second guide rail platform 30 is driven to move rightwards, the second push rod motor 33 is turned off when the proper position is reached, and the sample replacement is finished.
It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and the embodiments of the present invention may be modified or adapted in any manner.
It can thus be seen that the objects of the invention are sufficiently well-attained. The embodiment illustrated and described herein is to be considered as illustrative of the functional and structural principles of the present invention and changes may be made without departing from such principles. Accordingly, this invention includes all modifications encompassed within the scope and spirit of the following claims.
Claims (10)
1. The utility model provides a can realize that friction resistance's between solid wall surface of non-smooth surface testing arrangement, its characterized in that, includes experimental base (35) and sets gradually first experimental installing zone (36) and the experimental installing zone (37) of second on experimental base (35), first experimental installing zone (36) include power transmission device, power transmission device includes drive arrangement and torque measurement device, drive arrangement with torque measurement device drive is connected, experimental installing zone (37) of second includes closing device and mobile device, power transmission device coaxial coupling in closing device, and closing device installs on the mobile device, mobile device with experimental base (35) movably is connected.
2. The device for testing the frictional resistance between the fixed wall surfaces with the non-smooth surfaces as claimed in claim 1 or 2, wherein the power transmission device further comprises a power shaft fixing component, and the power shaft fixing component is connected with the torque measuring device.
3. The apparatus of claim 1, wherein the pressing device comprises a shaft fixing member, a non-smooth wall member and a smooth wall member, the shaft fixing member is connected to the non-smooth wall, the non-smooth wall member has a non-smooth wall, the smooth wall member has a smooth wall, and the non-smooth wall and the smooth wall are movably disposed in a relative pressing manner.
4. The device for testing the frictional resistance between the fixed walls with the non-smooth surfaces as claimed in claim 1, wherein the moving device comprises a guide rail (24), at least one guide rail platform disposed on the guide rail (24), and at least one power assembly, and the guide rail platform disposed on the guide rail (24) is movably connected with the power assembly along the guide rail (24).
5. The device for testing the frictional resistance between the non-smooth surface and the fixed wall surface according to claim 2, wherein the driving device comprises a motor (1), a motor support (1A) and a first coupler (2), wherein the motor (1) is mounted on the motor support (1A), the torque measuring device comprises a second coupler (5), a torque sensor (4) and a sensor support (3), the torque sensor (4) is mounted on the sensor support (3), the motor (1) has a rotating shaft, the rotating shaft is connected with the input end of the torque sensor (4) through the first coupler (2), the power shaft fixing component comprises a first sleeve body, at least one first bearing and a power shaft (9), the first bearing is sleeved on the power shaft (9), the first sleeve body is provided with a first axial through hole, the first sleeve body is sleeved on the first bearing, and the power shaft (9) is in adaptive connection with the first axial through hole.
6. The device for testing the frictional resistance between the solid fixed wall surfaces on the non-smooth surface according to the claim 3, wherein the transmission shaft fixing component comprises at least one second bearing, a second sleeve body, a tooth-embedded coupler (10) and a transmission shaft (13), the second bearing is sleeved on the transmission shaft (13), the second sleeve body is provided with a second axial through hole, the second sleeve body is sleeved on the second bearing, the power shaft (9) is in adaptive connection with the second axial through hole, the power shaft (9) is connected with the transmission shaft (13) through the tooth-embedded coupler (10), the non-smooth wall surface component comprises a sample support frame (15) and a non-smooth wall surface cover plate (17), the non-smooth wall surface cover plate (17) is in threaded connection with the sample support frame (15), and the smooth wall surface component comprises a smooth wall surface pressing plate (18), The pressing plate supporting barrel, the pressure sensor (19), the pressing screw rod (21) and the pressing handle (22) are arranged, the smooth wall pressing plate (18) is connected with one end groove of the pressure supporting barrel opposite to the non-smooth wall cover plate (17), the pressure sensor (19) is attached to the inner end face of the smooth wall pressing plate (18) and arranged in the pressure supporting barrel, a barrel hole is formed in the other end of the pressure supporting barrel in the axial direction, the pressing screw rod (21) is connected with the pressure sensor (19), and the pressing handle (22) is connected with the pressing screw rod (21).
7. The device for testing the frictional resistance between the fixed walls with the non-smooth surface according to claim 4, wherein the moving device comprises a first guide rail platform (23) arranged on the guide rail (24) and a second guide rail platform (30) arranged on the guide rail (24), the first guide rail platform (23) arranged on the guide rail (24) is sequentially arranged on the guide rail (24), the power assembly comprises a push rod motor bracket (25), a push rod motor and a push rod motor support, the push rod motor comprises a first push rod motor (27) and a second push rod motor (33), the push rod motor support comprises a first push rod motor support (28) and a second push rod motor support (32), one end of the first guide rail platform (23) and one end of the second guide rail platform (30) are respectively and fixedly connected with the first push rod motor support (28) and the second push rod motor support (32), first push rod motor support (28) with first push rod motor (27) are connected, first push rod motor (27) are installed on push rod motor support (25), push rod motor support (25) rigid coupling sets up on experimental base (35), second push rod motor (33) rigid coupling sets up on the perpendicular face of experimental base (35).
8. The device for testing the frictional resistance between the fixed wall surfaces with the non-smooth surface as claimed in claim 7, wherein the moving device further comprises an anti-tilting bracket (26), and the anti-tilting bracket (26) is fixedly arranged on the outer end side surface of the push rod motor bracket (25).
9. The device for testing the frictional resistance between the fixed walls with the non-smooth surfaces as claimed in claim 4, wherein said guide rails (24) are V-shaped guide rails (24).
10. The device for testing the frictional resistance between the fixed wall surfaces with the non-smooth surface according to claim 7, wherein the power shaft fixing assembly further comprises a first end cover (6) and a second end cover (8), the first end cover (6) and the second end cover (8) are respectively covered and arranged at two end portions of the first sleeve body, the transmission shaft fixing assembly further comprises a third end cover (11) and a fourth end cover (14), and the third end cover (11) and the fourth end cover (14) are respectively covered and arranged at two end portions of the second sleeve body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911034844.7A CN110646341A (en) | 2019-10-29 | 2019-10-29 | Testing device capable of realizing frictional resistance between non-smooth surface fixing wall surfaces |
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| CN201911034844.7A CN110646341A (en) | 2019-10-29 | 2019-10-29 | Testing device capable of realizing frictional resistance between non-smooth surface fixing wall surfaces |
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