CN210719932U - Friction wear sample fixing clamp - Google Patents
Friction wear sample fixing clamp Download PDFInfo
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- CN210719932U CN210719932U CN201920982288.5U CN201920982288U CN210719932U CN 210719932 U CN210719932 U CN 210719932U CN 201920982288 U CN201920982288 U CN 201920982288U CN 210719932 U CN210719932 U CN 210719932U
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Abstract
The embodiment of the application provides a friction wear sample mounting fixture, includes: the clamp comprises a clamp main body and a quick-mounting fixing clamp, wherein a fixing groove is formed in the clamp main body; the side wall of the fixing groove is provided with at least one penetrating seam with the height not smaller than the depth of the fixing groove in a penetrating mode, the fast-assembling fixing clamp is sleeved and fixed on the outer side surface of the clamp main body corresponding to the penetrating seam, and when a friction wear sample is inserted into the fixing groove through a deformation space provided for the fixing groove by the penetrating seam, the fast-assembling fixing clamp adjusts the width of the penetrating seam so as to fix the friction wear sample in the fixing groove; this application can be fast, stable and reliable fix the frictional wear sample in the anchor clamps, and then guarantee the frictional wear sample in high-speed friction test with keep complete, the even contact to the mill, can not take place abnormal eccentric wear because of the problem of fit-up gap to improve the experiment precision.
Description
Technical Field
The application relates to the field of material testing equipment, in particular to a friction wear sample fixing clamp.
Background
The friction and wear testing machine is an experimental instrument for researching the friction and wear and lubricating performance between contact surfaces of materials, and the clamping and fixing of a sample is an important link for reflecting the real friction and wear performance of a material to be tested. In order to truly restore the set working environment, the test surface of the test sample is required to be in complete and uniform contact with the grinding piece in the friction and wear test process. Meanwhile, the easy-to-mount property, high rigidity and wear resistance of the sample clamp, no damage to the sample, stable and firm clamping and small-size portability of the sample clamp are also basic requirements of the high-performance friction wear testing machine.
In the friction and wear test, the contact mode of the sample can be divided into point-surface contact, line-surface contact and surface-surface contact, and the shape of the sample and the counter-grinding piece can be divided into a plurality of ring-disc, ring-ring, pin-disc, pin-ring and the like. The frictional wear sample fixing clamp in the related art is not firm and stable in clamping a sample, so that the sample is eccentric, and the accuracy of a test result is reduced.
Therefore, the inventor provides a friction wear sample fixing clamp by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.
SUMMERY OF THE UTILITY MODEL
To the problem among the prior art, this application provides a friction and wear sample mounting fixture, can be fast, stable and reliable fix the friction and wear sample in the anchor clamps, and then guarantee the friction and wear sample in high-speed friction and friction test with keep complete, the even contact to the mill, can not take place abnormal eccentric wear because of the problem of fit-up gap to improve the experiment precision.
In order to solve the technical problem, the application provides the following technical scheme:
in a first aspect, the present application provides a friction wear sample holding fixture, comprising:
the clamp comprises a clamp main body and a quick-mounting fixing clamp, wherein a fixing groove is formed in the clamp main body;
the rapid-assembling type fixture comprises a fixture body, and is characterized in that at least one penetrating joint with the height not smaller than the depth of the fixing groove penetrates through the side wall of the fixing groove, the rapid-assembling type fixture is sleeved outside and fixed on the outer side surface of the fixture body corresponding to the penetrating joint, and when a friction wear sample is inserted into the fixing groove through a deformation space provided by the fixing groove through the penetrating joint, the rapid-assembling type fixture adjusts the width of the penetrating joint so as to fix the friction wear sample in the fixing groove.
Further, the clamp body includes a first fixing portion and a second fixing portion disposed below the first fixing portion and having a cross-sectional area larger than that of the first fixing portion.
Further, the first fixing portion is inserted into the testing machine upper disc in a penetrating mode along a through hole formed in the testing machine upper disc until the upper surface of the second fixing portion is attached to the lower surface of the testing machine upper disc so as to limit the movement of the first fixing portion.
Further, the cross section profile of first fixed part comprises circular arc and sharp connection, the testing machine hanging wall the through-hole be with the through-hole that the cross sectional shape of first fixed part corresponds, the testing machine hanging wall passes through the through-hole is right first fixed part carries on spacingly.
Further, an external thread is arranged on the outer surface of the first fixing part.
Further, the upper portion of the upper disc of the testing machine is provided with a locking nut corresponding to the external thread, and the first fixing portion extends out of the through hole and then is fixedly connected with the upper disc of the testing machine through the locking nut.
Further, a gasket is arranged between the locking nut and the upper disc of the testing machine.
Furthermore, an annular groove is formed in the side wall of the second fixing portion, and the fast-assembling fixing clamp is arranged in the annular groove.
Further, one end of the through seam is arranged on the side wall of the bottom end of the clamp main body, and the other end of the through seam is arranged on the side wall of the clamp main body corresponding to the position of the upper disc of the testing machine.
Further, the through seam is a linear structure arranged along the vertical direction.
Furthermore, the fast-assembling fixation clamp includes clamping part and locking screw, the clamping part overcoat is in behind the annular groove through locking screw locking is fixed.
Further, the height of the penetrating seam is not less than the depth of the fixing groove.
According to the technical scheme, the application provides a friction wear sample mounting fixture, through run through on the fixed slot lateral wall of anchor clamps main part set up at least one highly be not less than the seam that runs through of the degree of depth of fixed slot to make the friction wear sample pass through the seam does the deformation space that the fixed slot provided can insert in the fixed slot, then the rethread fast-assembling fixation clamp adjustment the width of running through the seam tightens up and then reduces promptly through the spiral of fast-assembling fixation clamp deformation space, so that friction wear sample can be firm fix in the fixed slot, improved the stability and the fastness of friction wear sample in the fixed slot, can not take place abnormal eccentric wear because of the problem of fit-up gap, thereby improve the experiment precision.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural view of a friction wear specimen holding fixture according to the present application;
FIG. 2 is a front view of a friction wear specimen holding fixture as described herein;
FIG. 3 is a top view of a friction wear specimen holding fixture according to the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Considering that the friction wear sample fixing clamp in the related technology has infirm and unstable clamping to the sample, which causes eccentric wear to the sample, further reducing the accuracy of the test result, the application provides a friction wear sample fixing clamp, at least one through seam is arranged on the side wall of the fixing groove of the clamp main body in a penetrating way, so that a friction wear sample can be inserted into the fixing groove through a deformation space provided for the fixing groove by the through seam, then the width of the through seam is adjusted by a quick-mounting fixing clamp, namely, the deformation space is reduced by the spiral tightening of the quick-mounting fixing clamp, so that the friction wear sample can be firmly fixed in the fixing groove, the stability and the fastness of frictional wear sample in the fixed slot have been improved, can not take place improper eccentric wear because of the problem in fit-up gap to improve the experiment precision.
In order to fix a friction wear sample in a fixture quickly, stably and reliably and further ensure that the friction wear sample is kept in complete and uniform contact with a grinding disc in a high-speed friction test and abnormal eccentric wear cannot occur due to the problem of assembly clearance, so that the experimental precision is improved, the application provides a friction wear sample fixing fixture, which is shown in fig. 1 to 3, and in the embodiment, the friction wear sample fixing fixture specifically comprises a fixture main body 1 and a quick-assembly fixing clamp 2, and a fixing groove 3 is formed in the fixture main body 1;
at least one penetrating seam 4 penetrates through the side wall of the fixing groove 3, the fast-assembling fixing clamp 2 is sleeved on the outer side surface of the clamp main body 1 corresponding to the penetrating seam 4, and when a friction wear sample 8 is inserted into the fixing groove 3 through a deformation space provided for the fixing groove 3 by the penetrating seam 4, the fast-assembling fixing clamp 2 adjusts the width of the penetrating seam 4 so as to fix the friction wear sample 8 in the fixing groove 3.
Alternatively, the height of the penetrating slit 4 may be not less than the depth of the fixing groove 3 so that the frictional wear specimen 8 can be inserted into the bottommost portion of the fixing groove 3, and in another embodiment of the present application, the height of the penetrating slit 4 may be less than the depth of the fixing groove 3, and the frictional wear specimen 8 may not be inserted into the bottommost portion of the fixing groove 3, but may be effectively fixed to the fixing groove 3.
Optionally, the clamp body 1 is made of a plastic material and can deform to a certain extent under the action of an external force, in some other embodiments of the present application, the clamp body 1 may also be made of an elastic material or other materials that can deform, and the present application is not limited specifically here.
Optionally, fast-assembling fixation clamp 2 can be for current clamping device that can press from both sides tight fixed and make things convenient for the dismouting, and this application is right here the concrete structure of fast-assembling fixation clamp 2 does not do specifically inject, can realize pressing from both sides tight fixed function can.
It is understood that the frictional wear test piece 8 may have different shapes according to actual production requirements, and the shape of the fixing groove 3 corresponds to the shape of the frictional wear test piece 8, so as to ensure that the frictional wear test piece 8 can be firmly fixed in the fixing groove 3.
Alternatively, the cross-sectional area of the fixing groove 3 may be equal to the cross-sectional area of the friction wear sample 8, or the cross-sectional area of the fixing groove 3 may be slightly larger than the cross-sectional area of the friction wear sample 8, so that the friction wear sample 8 can be just smoothly inserted into the fixing groove 3, and a corresponding deformation space is provided for the fixing groove 3 by the gap width of the through seam 4 itself, so that the friction wear sample 8 can be just smoothly inserted into the fixing groove 3 for fixing.
Optionally, in order to further fix the friction wear test piece 8 in the fixing groove 3, after the friction wear test piece 8 has been inserted into the fixing groove 3 through the deformation space provided by the through seam 4, the quick-assembly fixing clip 2 is sleeved on the outer side surface of the clamp main body 1, and the deformation space provided by the through seam 4 is further reduced by the clamping movement of the quick-assembly fixing clip 2, so as to reduce the gap existing in the fixing groove 3, and further fix the friction wear test piece 8 in the fixing groove 3.
It can be known from the above description, according to the friction wear sample mounting fixture that this application embodiment provided, set up at least one through running through on 3 lateral walls of fixed slot of anchor clamps main part 1 and highly be not less than the through seam 4 of the degree of depth of fixed slot 3 to make friction wear sample 8 pass through seam 4 does the deformation space that fixed slot 3 provided can insert in the fixed slot 3, then again through fast-assembling fixation clamp 2 adjustment the width of through seam 4, tighten up and then reduce through the spiral of fast-assembling fixation clamp 2 promptly deformation space, so that friction wear sample 8 can be firm fix in the fixed slot 3, improved the stability and the fastness of friction wear sample 8 in fixed slot 3, can not take place abnormal eccentric wear because of the problem in fit-up gap, thereby improve the experimental precision.
As a preferred implementation manner of the embodiment of the present application, the clamp body 1 includes a first fixing portion 11 and a second fixing portion 12 disposed below the first fixing portion 11 and having a cross-sectional area larger than that of the first fixing portion 11, when the first fixing portion 11 is inserted into the upper disk of the testing machine 7 along a through hole opened in the upper disk of the testing machine 7, because the cross-sectional area of the second fixing portion 12 is larger than that of the first fixing portion 11, the upper surface of the second fixing portion 12 can be attached to the lower surface of the upper disk of the testing machine 7, so that the movement of the first fixing portion 11 is limited.
Referring to fig. 3, as a preferred embodiment of the present application, the cross-sectional profile of the first fixing portion 11 is composed of a circular arc and a straight line connection, the through hole of the upper disc of the testing machine 7 is a through hole corresponding to the cross section shape of the first fixing part 11, the upper disc of the testing machine 7 limits the first fixing part 11 through the through hole, it will be appreciated that, in order to ensure that there is no relative movement between the clamp body 1 and the upper disk of the testing machine 7, and to better transmit the frictional torque in the frictional wear test, the cross section of the first fixing portion 11 is provided in a non-circular shape, and the through hole of the testing machine 7 is also provided in a corresponding non-circular shape, thereby, the rotation of the first fixing part 11 inserted into the through hole is limited, and the relative movement between the jig main body 1 and the testing machine 7 is limited.
Referring to fig. 1, as a preferred implementation manner of the embodiment of the present application, an external thread is provided on an outer surface of the first fixing portion 11, the first fixing portion 11 extends out of the through hole and then passes through the locking nut 5 and the testing machine 7 upper disc is connected and fixed, and since the second fixing portion 12 disposed below the testing machine 7 upper disc already limits the first fixing portion 11, the first fixing portion 11 is screwed and locked by the locking nut 5 disposed above the testing machine 7 upper disc, and the first fixing portion 11 is further fixed.
Referring to fig. 1, as a preferred implementation manner of the embodiment of the present application, a gasket 6 is disposed between the lock nut 5 and the upper disc of the testing machine 7 to improve the fixing effect of the lock nut 5.
Referring to fig. 2, as a preferred embodiment of the present application, an annular groove is formed on a side wall of the second fixing portion 12, and the quick-mounting fixing clip 2 is disposed in the annular groove to limit displacement of the quick-mounting fixing clip 2 in a vertical direction.
Referring to fig. 1 and 2, as a preferred embodiment of the present application, one end of the through-slit 4 is provided on a sidewall of the lowermost end of the jig main body 1, the other end of the through seam 4 is arranged on the side wall of the clamp main body 1 corresponding to the disc position on the testing machine 7, the length of the through seam 4 in the vertical direction is not less than the depth of the fixing groove 3, to ensure that the friction wear test piece 8 can be inserted into the bottom of the fixing groove 3 by using the deformation space generated by the through seam 4, preferably, the through seam 4 is a linear structure arranged along the vertical direction, in other embodiments of the present application, the through seam 4 may also be a curved line or another linear line, which can provide enough deformation space for the fixing groove 3 so that the friction wear test piece 8 can be inserted into the bottom of the fixing groove 3.
As a preferred embodiment of this application, fast-assembling fixation clamp 2 includes clamping part and locking screw, the clamping part overcoat passes through behind the annular groove locking screw is fixed.
The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.
Claims (12)
1. A friction wear sample mounting fixture, comprising: the clamp comprises a clamp main body and a quick-mounting fixing clamp, wherein a fixing groove is formed in the clamp main body;
the side wall of the fixing groove is provided with at least one penetrating seam in a penetrating mode, the fast-assembling fixing clamp is sleeved on the outer side surface of the clamp main body corresponding to the penetrating seam in a sleeved mode, and when a friction wear sample is inserted into the fixing groove through a deformation space provided for the fixing groove through the penetrating seam, the fast-assembling fixing clamp adjusts the width of the penetrating seam so that the friction wear sample is fixed in the fixing groove.
2. The friction wear sample holding jig according to claim 1, wherein the jig main body includes a first holding portion and a second holding portion which is provided below the first holding portion and has a cross-sectional area larger than that of the first holding portion.
3. The friction wear sample fixing clamp according to claim 2, wherein the first fixing portion is inserted into the testing machine upper disc through a through hole formed in the testing machine upper disc until an upper surface of the second fixing portion is attached to a lower surface of the testing machine upper disc so as to limit movement of the first fixing portion.
4. The friction wear sample fixing clamp according to claim 3, wherein the cross-sectional profile of the first fixing portion is composed of circular arcs and straight line connections, the through hole of the upper disc of the testing machine is a through hole corresponding to the cross-sectional shape of the first fixing portion, and the upper disc of the testing machine limits the first fixing portion through the through hole.
5. The friction wear sample holding jig of claim 4, wherein an external thread is provided on an outer surface of the first holding portion.
6. The friction wear sample fixing clamp according to claim 5, wherein a locking nut is arranged above the upper disk of the testing machine corresponding to the external thread, and the first fixing portion is fixedly connected with the upper disk of the testing machine through the locking nut after extending out of the through hole.
7. The friction wear sample holding jig of claim 6, wherein a washer is provided between the lock nut and the testing machine upper plate.
8. The friction wear sample fixing clamp according to claim 2, wherein an annular groove is formed in a side wall of the second fixing portion, and the quick-mounting fixing clamp is disposed in the annular groove.
9. The friction wear specimen fixing jig according to claim 3, characterized in that one end of the through-slit is provided on a side wall of a lowermost end of the jig main body, and the other end of the through-slit is provided on a side wall of the jig main body corresponding to a position of the upper disk of the testing machine.
10. The friction wear specimen holding fixture of claim 1, wherein the through slot is a straight structure disposed in a vertical direction.
11. The friction wear sample mounting fixture of claim 8, wherein the quick-fit mounting fixture includes a clamping portion and a locking screw, and the clamping portion is locked and secured by the locking screw after being sleeved in the annular groove.
12. The friction wear specimen holding jig of claim 1, wherein the height of the through slit is not less than the depth of the holding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982288.5U CN210719932U (en) | 2019-06-27 | 2019-06-27 | Friction wear sample fixing clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920982288.5U CN210719932U (en) | 2019-06-27 | 2019-06-27 | Friction wear sample fixing clamp |
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| CN210719932U true CN210719932U (en) | 2020-06-09 |
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| CN201920982288.5U Active CN210719932U (en) | 2019-06-27 | 2019-06-27 | Friction wear sample fixing clamp |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683658A (en) * | 2020-12-02 | 2021-04-20 | 浙江工业大学 | Friction head clamping device installed on friction testing machine |
| CN113447344A (en) * | 2021-07-15 | 2021-09-28 | 中国科学院地质与地球物理研究所 | Test equipment and method for simulating performance of rock-soil body under action of tension-compression dynamic wave |
-
2019
- 2019-06-27 CN CN201920982288.5U patent/CN210719932U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683658A (en) * | 2020-12-02 | 2021-04-20 | 浙江工业大学 | Friction head clamping device installed on friction testing machine |
| CN113447344A (en) * | 2021-07-15 | 2021-09-28 | 中国科学院地质与地球物理研究所 | Test equipment and method for simulating performance of rock-soil body under action of tension-compression dynamic wave |
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