CN209841648U - Vertical measuring device of preimpregnation cloth coefficient of dynamic friction - Google Patents
Vertical measuring device of preimpregnation cloth coefficient of dynamic friction Download PDFInfo
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- CN209841648U CN209841648U CN201920108727.XU CN201920108727U CN209841648U CN 209841648 U CN209841648 U CN 209841648U CN 201920108727 U CN201920108727 U CN 201920108727U CN 209841648 U CN209841648 U CN 209841648U
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Abstract
The utility model provides a vertical measuring device for the dynamic friction coefficient of prepreg cloth, which comprises a support frame, a workbench arranged on the support frame, a pressure applying module, a guiding module and a traction module connected with the support frame, wherein the workbench is used for fixing the prepreg cloth; the pressure applying module comprises a pressure adjusting module and a friction pair detachably connected with the pressure adjusting module, the friction pair is abutted with the prepreg cloth on the workbench to form a friction surface in the measuring process, and the pressure adjusting module adjusts the pressure applying size of the friction pair; the guide module is connected with the workbench and can enable the workbench to slide along the vertical direction; the traction module is provided with a traction mechanism which moves along the vertical direction and is used for drawing the workbench to move along the vertical direction so as to enable the prepreg cloth on the workbench and the friction by-product to move relatively. The utility model discloses a measure under vertical state, can probe the relation of dynamic friction coefficient and material deformation mechanism through the measurement, increased the variety of dynamic friction coefficient measurement mode.
Description
Technical Field
The utility model relates to a physical experiment device field particularly, relates to a vertical measuring device of preimpregnation cloth coefficient of dynamic friction.
Background
The friction performance of a material is one of the very important performances, and is divided into sliding friction force, rolling friction force and static friction force according to the motion property. The coefficient of kinetic friction is the ratio between the friction and the positive pressure when objects in contact with each other make relative motion. The existing friction coefficient measuring devices are various, but most of the friction coefficient measuring devices are horizontal measuring devices, the occupied area is large, the problems of high price and single measuring mode generally exist, and the relation between the friction coefficient and a material deformation mechanism cannot be effectively measured.
SUMMERY OF THE UTILITY MODEL
The utility model provides a vertical measuring device of preimpregnation cloth coefficient of dynamic friction aims at improving the problem of the relation of current coefficient of dynamic friction measuring device measuring method singleness, unable effective measurement coefficient of friction and material deformation mechanism.
The utility model discloses a realize like this:
a vertical measuring device for a pre-impregnated cloth dynamic friction coefficient comprises a support frame, a workbench, a pressure applying module, a guide module and a traction module, wherein the workbench, the pressure applying module and the guide module are arranged on the support frame; the workbench is used for fixing the prepreg cloth; the pressure application module comprises a pressure adjustment module and a friction pair detachably connected to the pressure adjustment module, the friction pair is abutted with the prepreg cloth on the workbench to form a friction surface in the measurement process, and the pressure adjustment module adjusts the pressure application size of the friction pair; the guide module is connected with the workbench and can enable the workbench to slide along the vertical direction; the traction module is provided with a traction mechanism which moves along the vertical direction and is used for drawing the workbench to move along the vertical direction so as to enable the prepreg cloth on the workbench and the friction byproduct to move relatively.
Further, in the preferred embodiment of the present invention, the pressure adjusting module includes a fixing frame and a plurality of elastic members and locking members disposed in the fixing frame, the fixing frame is connected to the frame, the elastic members are fixed to the fixing frame to apply elastic force to the friction pair of the fixing frame, and the locking members control the compression amount of the elastic members to adjust the magnitude of the elastic force.
Further, in the preferred embodiment of the present invention, the friction pair has a friction plate contacting with the prepreg cloth and a fixing plate for connecting with the pressure adjustment module, a chamfer is provided at a joint of the friction plate and the fixing plate, and an area ratio of the friction plate to the worktable is 1: 3-1: 5.
Further, in a preferred embodiment of the present invention, the traction module is a mechanical stretcher.
Further, in the preferred embodiment of the present invention, the one end of the workbench is provided with a fixing portion, and the wire rope of the mechanical stretcher is connected to the fixing portion to pull the workbench to move along the vertical direction.
Further, in a preferred embodiment of the present invention, the working table and the friction pair are made of transparent materials.
Further, in the preferred embodiment of the present invention, the worktable is further provided with a clamping member, and the prepreg is fixed on the worktable through the clamping member.
Further, in the preferred embodiment of the present invention, the present invention further comprises a limiting module, the limiting module comprises a fixing pin disposed on the frame and a limiting plate disposed on the pressure adjusting module, the limiting plate is provided with a plurality of pin holes, the fixing pin is matched with the pin holes, and the pressure adjusting module is limited.
Further, in the preferred embodiment of the present invention, the guiding module includes a sliding rail and a sliding block connected to the sliding rail, the sliding rail is fixed to the frame, and the workbench is fixedly connected to the sliding block.
The utility model has the advantages that:
(1) the vertical measuring device for the dynamic friction coefficient of the prepreg cloth, which is obtained by the design, has the advantages of small occupied area and low cost, and when the device is used, the prepreg cloth is pulled by the traction module to move in the vertical direction, so that the material is tested in a vertical state, the blank of a vertical measuring mode is filled, and the diversity of the dynamic friction coefficient measuring mode is increased;
(2) when the material is placed in a vertical state, the material is under the action of gravity, the upper part of the material is thin, and the lower part of the material is thick, so that the vertical measuring instrument can explore the relationship between the dynamic friction coefficient of the material and the deformation mechanism of the material through measurement;
(3) the utility model discloses a pressure regulation module can freely adjust the normal pressure size of the vice and the macromolecular material contact surface of certain within range internal friction, makes the material measure many times under the normal pressure of difference, is favorable to improving measuring result's accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a vertical measuring device for pre-impregnated cloth dynamic friction coefficient provided in embodiment 1 of the present invention;
fig. 2 and 3 are schematic partial structural diagrams of a vertical measuring device for pre-preg dynamic friction coefficient provided in embodiment 1 of the present invention (the traction module is hidden);
FIG. 4 is an enlarged partial schematic view at A of FIG. 3;
fig. 5 is a schematic cross-sectional view of a pressure application module according to embodiment 1 of the present invention;
fig. 6 is a schematic structural view of a friction pair in embodiment 1 of the present invention;
fig. 7 is a schematic view of a partial structure of a vertical measuring device for pre-preg dynamic friction coefficient provided in embodiment 2 of the present invention (a traction module is hidden);
fig. 8 is a schematic cross-sectional view of a pressure application module according to embodiment 2 of the present invention;
fig. 9 is a schematic structural view of a friction pair in embodiment 2 of the present invention.
Icon: 1-a support frame; 11-a base; 12-a frame; 2-a workbench; 21-a fixed part; 22-a clamping member; 3-a pressure application module; 31-a pressure regulation module; 311-a mount; 312-an elastic member; 313-a locking member; 32-friction pair; 321-a friction plate; 322-a fixed plate; 323-chamfering; 4-a guiding module; 41-a slide rail; 42-a slide block; 5-a traction module; 6-a limit module; 61-fixed pins; 62-a limiting plate; 63-pin holes; 7-a pressure application module; 71-a pressure regulation module; 72-friction pair; 721-stationary plane; 722-friction surface; 723-chamfering; 8-a workbench.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Example 1
Referring to fig. 1 and 2, the utility model provides a vertical measuring device of preimpregnation cloth dynamic friction coefficient, including support frame 1, set up in workstation 2, the module of exerting pressure 3, direction module 4 and connection on the support frame 1 the traction module 5 of support frame 1. The device applies positive pressure to the prepreg cloth on the workbench 2 by using the pressure applying module 3, the prepreg cloth and the pressure applying module 3 move relatively under the action of the traction module 5, and the friction coefficient of the high polymer material is calculated by obtaining relevant parameters. In the vertical state, the material is under the action of gravity when vertically placed, the upper part is thin, and the lower part is thick, so that the vertical measuring instrument can explore the relationship between the dynamic friction coefficient and the material deformation mechanism through measurement.
Referring to fig. 1 to 3, the supporting frame 1 includes a base 11 and a frame 12 fixedly connected to the base 11, the base 11 is connected to the traction module 5, and the frame 12 is connected to the worktable 2, the pressing module 3 and the guiding module 4. The workbench 2 is used for fixing the prepreg cloth. The pressure application module 3 includes a pressure adjustment module 31 and a friction pair 32 detachably connected to the pressure adjustment module 31. The friction pair 32 is abutted with the prepreg cloth on the workbench 2 to form a friction surface in the measuring process, and the pressure adjusting module 31 adjusts the pressure applied by the friction pair 32. The guide module 4 is connected with the workbench 2 and can enable the workbench 2 to slide along the vertical direction. The traction module 5 is provided with a traction mechanism which moves along the vertical direction and is used for drawing the workbench 2 to move along the vertical direction so as to enable the prepreg cloth on the workbench 2 and the friction pair 32 to generate relative movement. In the test process, the traction module 5 pulls the workbench 2 to move at a constant speed along the vertical direction, so that the pre-impregnated cloth on the workbench 2 and the friction pair 32 move relatively, the material is tested in a vertical state, the blank of a vertical measurement mode is filled, and the diversity of dynamic friction coefficient measurement modes is increased.
Alternatively, and with reference to fig. 1, the traction module 5 is a mechanical stretcher. The mechanical stretching machine is provided with a traction beam moving along the vertical direction, and the traction beam is connected with the workbench 2 through a steel wire rope and is used for providing traction force for the workbench 2 so as to drive the prepreg cloth to move relative to the friction plate 321 on the friction pair 32 under the traction force. Optionally, the mechanical stretching machine is provided with a stress-strain sensor, and the traction force of the support frame 1 can be obtained through the stress-strain sensor. The test experiment is completed by conveniently utilizing the existing instrument-mechanical tensile tester, and additional devices such as additional sensors and the like are not needed, so that the cost is reduced.
Optionally, referring to fig. 3, a fixing portion 21 is disposed at one end of the workbench 2, and a steel wire rope of the mechanical stretcher is connected to the fixing portion 21 to pull the workbench 2 to move in the vertical direction. By setting the stretching speed of the mechanical stretching machine, the material can be measured for many times at different moving speeds, and the accuracy of the measurement result is improved.
Optionally, referring to fig. 1, a clamping member 22 is further disposed on the working table 2, and the prepreg sheet is fixed to the working table 2 through the clamping member 22. Optionally, the clamping piece 22 can be a section frame, the presoaked cloth is clamped tightly on the workbench 2 through the pressing rod of the section frame, and other clamping pieces such as clamps can be also used, so long as the clamping of the material can be realized, the clamping piece can be applied to the utility model discloses.
Alternatively, as shown in fig. 1 and 6, the working platform 2 and the friction pair 32 are both made of transparent materials. The transparent structure is beneficial to observing the change of the material in the extrusion and relative movement processes by using an optical rheometer in the observation window of the fixed frame 311, and researching the influence of the phenomena of heating, abrasion and the like in the friction movement process on the surface appearance change of the material or measuring the relationship between the friction coefficient and the material deformation mechanism so as to carry out further experimental research. Optionally, the transparent material is an acrylic sheet. The acrylic plate has low cost, good light transmission performance, impact resistance and easy cleaning. Optionally, other transparent materials such as polystyrene, polycarbonate etc. as long as can realize the utility model discloses an application effect, all applicable in the utility model discloses.
Optionally, referring to fig. 4 and 5, the pressure adjustment module 31 includes a fixing frame 311, and a plurality of elastic members 312 and locking members 313 arranged in the fixing frame 311, where the fixing frame 311 is connected to the frame 12, the elastic members 312 are fixed to the fixing frame 311 to apply an elastic force to the friction pairs 32 connected to the fixing frame 311, and the locking members 313 control the compression amount of the elastic members 312 to adjust the magnitude of the elastic force. Optionally, on the basis of not deviating the utility model discloses technical idea, other pressure regulating device also can be applied to like pressure control valve, pressure controller etc. the utility model discloses.
Optionally, referring to fig. 4 and 5, in this embodiment, the fixing frame 311 is constructed by a plurality of profile bars, where the profile bars include a plurality of X-direction bars, Y-direction bars, and Z-direction bars, and the X-direction bars, the Y-direction bars, and the Z-direction bars are connected to each other through a connecting member, so as to form the fixing frame 311 having a frame structure. The elastic members 312 and the locking member 313 are fixed to an X-direction rod and/or a Z-direction rod at the bottom of the fixing frame 311, and an observation window is reserved in the middle of the fixing frame 311. Optionally, the connecting piece can be the accessory, corner fittings and bolt and nut connection, right angle or corner groove connecting piece etc. that punch and attack the tooth and match, the utility model discloses do not specifically limit.
Optionally, referring to fig. 4 and 5, the elastic element 312 is a compression spring, the compression spring is fixed to the fixing frame 311, the friction pair 32 is connected to the fixing frame 311 through the fixing plate 322, and the locking element 313 includes a bolt and a washer penetrating through the compression spring and a locking nut engaged with the bolt. The gasket is arranged between the lock nut and the spring in a penetrating manner, and the compression amount of the spring can be changed by rotating the lock nut, so that elastic force is applied to the friction plate 321, and the elastic force can be calculated by obtaining the compression amount of the elastic element 312. Optionally, the lock nut in this embodiment includes a first lock nut and a second lock nut, and the first lock nut is used for cooperating with the bolt and the washer to adjust the compression amount of the compression spring. The fixing frame 311 is provided with a through hole matched with the bolt, and the bolt penetrates through the through hole and is fixed on the fixing frame 311 through the second locking nut.
Optionally, the elastic member 312 in this embodiment is a compression spring, but is not limited thereto, and other elastic members 312 capable of changing the magnitude of the applied pressure can be applied to the present invention as long as the effect of this embodiment can be achieved. By adjusting the elastic force, the positive pressure borne by the high polymer material in a certain range can be changed, so that the material can be measured for many times under different positive pressures, and the accuracy of the measurement result can be improved.
Optionally, referring to fig. 6, the friction pair 32 has a friction plate 321 contacting with the prepreg, and a fixing plate 322 for connecting with the pressure adjustment module 31, and a chamfer 323 is provided at the connection between the friction plate 321 and the fixing plate 322, so that scraping resistance of sharp surfaces and materials can be effectively avoided, and accuracy of measurement results can be reduced. The area ratio of the friction plate 321 to the workbench 2 is 1: 3-1: 5, so that the friction pair 32 can be conveniently replaced, and the influence of different shapes and sizes of friction surfaces in the friction pair 32 on a friction coefficient measurement result can be conveniently examined.
Optionally, referring to fig. 2 and 3, the guide module 4 includes a slide rail 41 and a slide block 42 slidably connected to the slide rail 41, the slide rail 41 is fixed to the frame 12, and the work table 2 is fixedly connected to the slide block 42. Alternatively, other types of guiding modules 4, such as a ball screw transmission mechanism and a rack and pinion transmission mechanism, may be used in the present invention.
Optionally, as shown in fig. 3 and 4, the test device further includes a limiting module 6, which needs to be limited in order to prevent the pressure applying module 3 from shaking before the test. The limiting module 6 comprises a fixing pin 61 arranged on the frame 12 and a limiting plate 62 arranged on the pressure adjusting module 31, wherein the limiting plate 62 is provided with a plurality of pin holes 63, and the fixing pin 61 is matched with the pin holes 63 to limit the pressure adjusting module 31. In the test state, the insertion pin of the fixing pin 61 is inserted into the pin hole 63 of the stopper plate 62 to limit the degree of freedom of the pressurizing module 3 in the vertical direction.
A measuring method of a prepreg dynamic friction coefficient applies the prepreg friction coefficient vertical measuring device, and comprises the following steps:
and S1, fixing the prepreg to be measured on the workbench 2. Optionally, it is right through with clamping piece 22 the preimpregnation cloth is fixed, clamping piece 22 can be the section bar frame, the preimpregnation cloth through the depression bar of section bar frame press from both sides tightly in on the workstation 2, also can be other components that have clamping function, the utility model discloses do not specifically limit.
And S2, moving the workbench 2 fixed with the prepreg cloth into a test site along the vertical direction, wherein the test site is positioned at the force application position of the pressure application module 3. The degree of freedom of the pressure applying module 3 in the vertical direction is limited through the limiting module 6, so that the pressure applying module 3 is further prevented from shaking in the measuring process.
S3, adjusting the pressure module 3 to apply a preset positive pressure value N to the prepreg cloth; optionally, multiple measurements can be performed by setting different positive pressure values, so that the measurement error of the device is reduced, and the measurement result is more accurate.
And S4, the traction module 5 draws the workbench 2 to move vertically to drive the presoaked cloth on the workbench 2 and the friction pair 32 on the pressure application module 3 to move relatively, and the area of the friction surface is kept constant in the moving process.
S5, measuring the traction force F in the uniform motion process of the workbench 2, and further calculating the dynamic friction coefficient of the prepreg cloth as shown in the following formula:
μk＝(F-mg)/N
wherein, mu k is the coefficient of dynamic friction; m is the sum of the mass of the workbench and the pre-impregnated cloth, kg; g is the acceleration of gravity, m/s2(ii) a F is traction force, N; n is positive pressure, N. The traction force F can be obtained by a mechanical sensor, and the positive pressure N can be converted by the compression amount of the elastic member 312.
Example 2 as shown with reference to figure 1,
embodiment 2 of the present invention provides a vertical measuring device for pre-impregnated cloth dynamic friction coefficient, which realizes the same technical effects as embodiment 1 in principle and production, and for the sake of brief description, the embodiment does not mention the parts, and can refer to the corresponding contents in embodiment 1.
Referring to fig. 7-9, the pressure application module 7 includes a pressure adjustment module 71 and a friction pair 72 fixed to the pressure adjustment module 71, the friction pair 72 abuts against a pre-impregnated cloth on a worktable 8 to form a friction plane in a measurement process, the pressure adjustment module 71 adjusts the pressure application magnitude of the friction pair 72, the friction pair 72 has a fixed surface 721 and a friction surface 722, the fixed surface 721 is connected to the pressure adjustment module 71 through a connecting member, a chamfer 723 is arranged at the edge of the friction surface 722, and the area ratio of the friction pair 72 to the worktable 8 is 1: 1-1: 2. In this embodiment, the friction pair 32 is designed by a simple flat plate and is fixedly connected with the pressure adjusting module 31, so that the structure is simple and the device cost is reduced.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The vertical measuring device for the pre-impregnated cloth dynamic friction coefficient is characterized by comprising a support frame (1), a workbench (2) arranged on the support frame (1), a pressure applying module (3), a guiding module (4) and a traction module (5) connected with the support frame (1), wherein the support frame (1) comprises a base (11) and a frame (12) fixedly connected with the base (11), the base (11) is connected with the traction module (5), and the frame (12) is connected with the workbench (2), the pressure applying module (3) and the guiding module (4); the workbench (2) is used for fixing the prepreg cloth; the pressure application module (3) comprises a pressure adjustment module (31) and a friction pair (32) detachably connected to the pressure adjustment module (31), the friction pair (32) is abutted with the presoaked cloth on the workbench (2) to form a friction surface in the measurement process, and the pressure adjustment module (31) adjusts the pressure application size of the friction pair (32); the guide module (4) is connected with the workbench (2) and can enable the workbench (2) to slide along the vertical direction; the traction module (5) is provided with a traction mechanism which moves along the vertical direction and is used for drawing the workbench (2) to move along the vertical direction so as to enable the presoaked cloth on the workbench (2) and the friction pair (32) to generate relative movement.
2. The vertical measuring device of the preimpregnation dynamic friction coefficient as recited in claim 1, characterized in that the pressure adjusting module (31) comprises a fixed frame (311) and a plurality of elastic members (312) and locking members (313) which are arranged in the fixed frame (311), the fixed frame (311) is connected with the frame (12), the elastic members (312) are fixed on the fixed frame (311) to apply elastic force to the friction pair (32) connected with the fixed frame (311), and the locking members (313) control the compression amount of the elastic members (312) to adjust the magnitude of the elastic force.
3. The vertical measuring device for the coefficient of kinetic friction of the prepreg according to claim 1, wherein the friction pair (32) comprises a friction plate (321) in contact with the prepreg and a fixing plate (322) for connecting with the pressure adjusting module (31), a chamfer (323) is arranged at the joint of the friction plate (321) and the fixing plate (322), and the area ratio of the friction plate (321) to the workbench (2) is 1: 3-1: 5.
4. The vertical measuring device of the pre-preg dynamic coefficient of friction according to claim 1, characterized in that the traction module (5) is a mechanical tensioner.
5. The vertical measurement device for the coefficient of kinetic friction of prepreg according to claim 4, characterized in that one end of the worktable (2) is provided with a fixed part (21), and the steel wire rope of the mechanical stretcher is connected to the fixed part (21) to pull the worktable (2) to move along the vertical direction.
6. The vertical measuring device of the preimpregnated dynamic coefficient of friction according to claim 1, characterized in that said worktable (2) and said friction pair (32) are both made of transparent material.
7. The vertical prepreg coefficient of dynamic friction measurement device according to claim 1, characterized in that a clamping member (22) is further provided on the table (2), and the prepreg is fixed on the table (2) by the clamping member (22).
8. The vertical measuring device of the preimpregnation dynamic friction coefficient as recited in claim 1, characterized in that a limiting module (6) is further included, the limiting module (6) comprises a fixing pin (61) arranged on the frame (12) and a limiting plate (62) arranged on the pressure adjusting module (31), a plurality of pin holes (63) are arranged on the limiting plate (62), and the fixing pin (61) is matched with the pin holes (63) to limit the pressure adjusting module (31).
9. The vertical measuring device of pre-preg dynamic coefficient of friction according to claim 1, characterized in that the guiding module (4) comprises a sliding rail (41) and a sliding block (42) slidably connected to the sliding rail (41), the sliding rail (41) being fixed to the frame (12), the worktable (2) being fixedly connected to the sliding block (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108727.XU CN209841648U (en) | 2019-01-22 | 2019-01-22 | Vertical measuring device of preimpregnation cloth coefficient of dynamic friction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920108727.XU CN209841648U (en) | 2019-01-22 | 2019-01-22 | Vertical measuring device of preimpregnation cloth coefficient of dynamic friction |
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| Publication Number | Publication Date |
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| CN209841648U true CN209841648U (en) | 2019-12-24 |
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| CN201920108727.XU Expired - Fee Related CN209841648U (en) | 2019-01-22 | 2019-01-22 | Vertical measuring device of preimpregnation cloth coefficient of dynamic friction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612926A (en) * | 2019-01-22 | 2019-04-12 | 厦门理工学院 | A kind of vertical measuring device and measuring method of prepreg cloth dynamic friction coefficient |
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- 2019-01-22 CN CN201920108727.XU patent/CN209841648U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612926A (en) * | 2019-01-22 | 2019-04-12 | 厦门理工学院 | A kind of vertical measuring device and measuring method of prepreg cloth dynamic friction coefficient |
| CN109612926B (en) * | 2019-01-22 | 2024-02-20 | 厦门理工学院 | Vertical measurement device and measurement method for dynamic friction coefficient of prepreg |
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Granted publication date: 20191224 Termination date: 20210122 |