CN202886185U - Clamping device for pipe-plate line contact fretting wear test - Google Patents
Clamping device for pipe-plate line contact fretting wear test Download PDFInfo
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- CN202886185U CN202886185U CN 201220483999 CN201220483999U CN202886185U CN 202886185 U CN202886185 U CN 202886185U CN 201220483999 CN201220483999 CN 201220483999 CN 201220483999 U CN201220483999 U CN 201220483999U CN 202886185 U CN202886185 U CN 202886185U
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Abstract
The utility model discloses a clamping device for a pipe-plate line contact fretting wear test. According to the clamping device, a cylindrical pipe clamping assembly and a flat plate clamping assembly are respectively used for stably clamping a cylindrical pipe and a flat plate of an experimental sample, and a cylindrical pipe pressing assembly and a flat plate pressing assembly are respectively used for applying opposite pressing force to the cylindrical pipe and the flat plate along a horizontal direction, so that line contact is formed between the flat plate and the cylindrical pipe, stable and uniform normal load is born by the flat plate and the cylindrical pipe, and the pipe-plate line contact fretting wear test can be performed by the clamping device and a uniaxial fatigue testing machine which are matched with each other. The clamping device is simple in structure and convenient to operate and can perform the test by combining with the conventional uniaxial fatigue testing machine; and a biaxial fretting wear testing machine is not required, and thus the experimental cost is reduced.
Description
Technical field
The utility model relates to a kind of pipe-dull and stereotyped line contact fretting wear experiment clamping device.
Background technology
At present, many employing ball-planar point ways of contact when the fretting wear experimental study is carried out in the laboratory, and comparatively difficult for the fretting wear problem experimental study of the normal cylinder that occurs-planar line way of contact in the engineering reality, this mainly is because the design of testing machine need to be considered the technical matters of three aspects:: (1) guarantees the fully contact in length range of two contacts; (2) guarantee quantitatively to apply normal load; (3) guarantee that the relative slippage of two contacts is controlled within the specific limits.In the prior art, can realize that the twin shaft fretting apparatus cost of above-mentioned functions is higher.In order to reduce experimental cost, need the clamping device of a kind of cylinder that cooperates common fatigue tester to carry out the fretting wear experiment-planar line way of contact fretting wear experiment usefulness.
Summary of the invention
The purpose of this utility model provides a kind of pipe-dull and stereotyped line contact fretting wear experiment clamping device, so that in pipe-dull and stereotyped line contact fretting wear experiment cylindrical tube, flat board are carried out clamping and can apply normal load.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of pipe-dull and stereotyped line contact fretting wear experiment clamping device, be arranged at and be used for pipe-dull and stereotyped line contact fretting wear experiment clamping experiment cylindrical tube on the testing machine, dull and stereotyped, described clamping device comprises the cylindrical tube clamp assemblies for the described cylindrical tube of clamping, the dull and stereotyped clamp assemblies that is used for the described flat board of clamping, described cylindrical tube clamp assemblies comprises the lower clamp body, be fixedly installed on the block mount pad on the described lower clamp body, can be arranged on slippingly block on the described block mount pad along horizontal left and right directions, can penetrate the pressing plate in the described cylindrical tube tube chamber, described pressing plate is located in the tube chamber of described cylindrical tube, the two ends that described pressing plate passes described cylindrical tube tube chamber are fixedly installed on respectively on the described block, described block and the contacted end face of described cylindrical tube, described pressing plate and the contacted end face of described cylindrical tube are respectively the lateral profile with described cylindrical tube, the arc surface that the tube chamber profile is consistent, described dull and stereotyped clamp assemblies comprises the upper clamp body that vertically can be arranged on up and down on the described testing machine, described flat board is arranged on a side of described upper clamp body bottom regularly, described cylindrical tube, described flat board all extends along horizontal fore-and-aft direction on described clamping device, described clamping device also comprises can be provided respectively described cylindrical tube, described flat board holds down assembly along the cylindrical tube of horizontal left and right directions snap-in force, flat board holds down assembly, described cylindrical tube holds down assembly, described flat board holds down assembly and is separately positioned on the two ends of described lower clamp body, and described cylindrical tube hold down assembly the snap-in force that described flat board is applied of snap-in force that described cylindrical tube is applied and described flat board that holds down assembly is different in same level right and left upward direction.
Preferably, described cylindrical tube holds down assembly and comprises the first mount pad that is fixedly installed on described lower clamp body one end, offer a plurality of the first threaded holes that distribute along horizontal left and right directions on described the first mount pad, the first screw rod all has been threaded in all described first threaded holes, the center of described the first screw rod offers the first through hole that extends vertically, described cylindrical tube holds down assembly and also comprises a plurality of first pull bars that can penetrate vertically in described the first through hole, one end of described the first pull bar is fixedly installed on the described block, between described block and described the first screw rod, be provided with first elastic component that can provide along horizontal left and right directions elastic-restoring force on described the first pull bar, the external diameter of described the first elastic component is greater than the aperture of described the first through hole and less than the aperture of described the first threaded hole, the other end of all described the first pull bars is fixedly installed the first arm-tie, is provided with on described the first mount pad and can regulates described the first arm-tie, the first regulating element of along continuous straight runs spacing between described the first mount pad;
Described flat board holds down assembly and comprises the second mount pad that is fixedly installed on the described lower clamp body other end, offer a plurality of the second threaded holes that distribute along horizontal left and right directions on described the second mount pad, the second screw rod all has been threaded in all described second threaded holes, the center of described the second screw rod offers the second through hole that extends vertically, described flat board holds down assembly and also comprises a plurality of vertically corresponding the second pull bars that penetrate in described the second through hole, be fixedly installed on respectively second arm-tie at described the second pull bar two ends, baffle plate, between described baffle plate and described the second screw rod, be provided with second elastic component that can provide along horizontal left and right directions elastic-restoring force on described the second screw rod, the external diameter of described the second elastic component is greater than the aperture of described the second through hole and less than the aperture of described the second threaded hole, be provided with on described the second mount pad and can regulate described the second arm-tie, the second regulating element of described the second mount pad along continuous straight runs spacing, all described first pull bars, the axial line of described the second pull bar is in the same plane.
Further preferably, the above first threaded hole of described the first mount pad has two, the above second threaded hole of described the second mount pad has two, accordingly, described the first screw rod, described the first pull bar, described the second screw rod, described the second pull bar all have two, and the axial line of described two the second pull bars extends along same rectilinear direction with the axial line of described two the first pull bars respectively.
Further preferably, described the first elastic component, described the second elastic component are spring.
Further preferably, described the first regulating element is the first set screw, and the threaded one end connection of described the first set screw is arranged on described the first mount pad, and the other end of described the first set screw is kept out on a side of described the first arm-tie.
Further preferably, described the second regulating element is the second set screw, and the threaded one end connection of described the second set screw is arranged on described the second mount pad, and the other end of described the second set screw is kept out on a side of described the second arm-tie.
Further preferably, the bottom of described upper clamp body opposite side offers groove, the outer end of described baffle plate has the projection that can insert in the described groove, can be provided with rotationally a rolling bearing on the outer end of described projection, the axial line of described rolling bearing distributes along horizontal fore-and-aft direction, and described rolling bearing can rollably be supported on the cell wall of described groove along the vertical direction.
Preferably, described block mount pad comprises the fixation clip that is fixedly installed on the height piece that lays respectively at described block rear and front end on the described lower clamp body, is fixedly installed on described height piece top, described block has at least part to be housed in the cavity of described fixation clip, described height piece, the formation of described lower clamp body, and the gap between the top end face of the bottom end face of described fixation clip and described block is not more than 0.25 μ m.
Because the utilization of technique scheme, the utility model compared with prior art has following advantages: pipe of the present utility model-dull and stereotyped line contact fretting wear experiment with in the clamping device by the cylindrical tube clamp assemblies is set, dull and stereotyped clamp assemblies is respectively to experiment sample cylindrical tube, flat board carries out stable clamping, by being set, cylindrical tube holds down assembly again, flat board holds down assembly provides respectively cylindrical tube, dull and stereotyped along the opposite snap-in force of horizontal left and right directions, so just, contact and bears the normal load of stable and uniform so that form line between flat board and the cylindrical tube, under the cooperation of single shaft fatigue testing machine, can manage-dull and stereotyped line contacts fretting wear and tested.This clamping device is simple in structure, and is easy to operate, can test in conjunction with existing single shaft fatigue testing machine, do not need to introduce the twin shaft fretting apparatus again, reduced experimental cost.
Description of drawings
Accompanying drawing 1 is the one-piece construction synoptic diagram of clamping device of the present utility model.
Wherein: 1, cylindrical tube; 2, flat board; 3, cylindrical tube clamp assemblies; 31, block; 32, pressing plate; 33, lower clamp body; 34, height piece; 35, fixation clip; 4, dull and stereotyped clamp assemblies; 41, upper clamp body; 42, groove; 5, flat board holds down assembly; 51, the second mount pad; 52, the second screw rod; 53, the second pull bar; 54, the second elastic component; 55, baffle plate; 56, projection; 57, rolling bearing; 58, the second arm-tie; 59, the second regulating element; 6, cylindrical tube holds down assembly; 61, the first mount pad; 62, the first screw rod; 63, the first pull bar; 64, the first elastic component; 65, the first arm-tie; 66, the first regulating element.
Embodiment
Come the technical solution of the utility model is further elaborated below in conjunction with accompanying drawing and specific embodiment.
Referring to pipe shown in Figure 1-dull and stereotyped line contact fretting wear experiment clamping device, this clamping device is arranged on the testing machine and uses cylindrical tube 1 and dull and stereotyped 2 for pipe-dull and stereotyped line contact fretting wear experiment clamping experiment, the testing machine here is common single shaft fatigue testing machine, cylindrical tube 1 and dull and stereotyped 2 is all extended along horizontal fore-and-aft direction on clamping device, the fore-and-aft direction of sight line that the fore-and-aft direction here refers to the observer when observing Fig. 1, corresponding, horizontal left and right directions refers to the observer left and right directions among Fig. 1 when observing Fig. 1.This clamping device comprises cylindrical tube clamp assemblies 3 for clamping cylindrical tube 1, is used for the dull and stereotyped clamp assemblies 4 of clamping flat board 2.
Referring to shown in Figure 1, cylindrical tube clamp assemblies 3 comprises lower clamp body 33, be fixedly installed on the block mount pad on the lower clamp body 33, can be arranged on slippingly block 31 on the above-mentioned block mount pad along horizontal left and right directions, and can penetrate pressing plate 32 in cylindrical tube 1 tube chamber, pressing plate 32 is located in the tube chamber of cylindrical tube 1 vertically, the two ends that pressing plate 32 passes cylindrical tube 1 tube chamber are fixedly installed on respectively on the block 31, cylindrical tube 1 is pressed between block 31 and the pressing plate 32, block 31 and cylindrical tube 1 contacted end face are the arc surface consistent with the lateral profile of cylindrical tube, and pressing plate 32 and the contacted end face of cylindrical tube 1 tube chamber are the arc surface consistent with its tube chamber profile.Can do with cylindrical tube 1 contacted end face on the block 31 and increase roughness and process, can avoid like this cylindrical tube 1 because the rolling that is subject to friction force and causes, assurance cylindrical tube 1 stably is clamped in block 31 and the pressing plate 32.In the present embodiment, the block mount pad is to arrange like this: the block mount pad comprises and is fixedly installed on the height piece 34 that lays respectively at block 31 rear and front ends on the lower clamp body 33, height piece 34 tops are provided with fixation clip 35 regularly, block 31 has at least part to be housed in height piece 34, in the cavity that fixation clip 35 and lower clamp body 33 form, block 31 can carry out slippage along the left and right horizontal direction in above-mentioned cavity, leave the gap between the top end face of the bottom end face of fixation clip 35 and block 31, this gap is not more than 0.25 μ m, and in the vertical direction exceeds the relative displacement of allowance owing to be subject to friction force in the process of slippage can effectively to control like this block 31.
Referring to shown in Figure 1, dull and stereotyped clamp assemblies 4 comprises the upper clamp body 41 that vertically can be arranged on up and down on the testing machine (not shown), dull and stereotyped 2 are arranged on a side of clamp body 41 bottoms regularly, between upper clamp body 41 and dull and stereotyped 2, the adjustable pad of thickness can be set, again by bolt with flat board 2, pad is fixed on the clamp body 41, by adjusting the position of thickness capable of regulating flat board 2 on horizontal left and right directions of pad, dull and stereotyped 2 are arranged on the relative sidepiece of the side that is not held with cylindrical tube 1 on the clamp body 41, like this, dull and stereotyped 2 with cylindrical tube 1 between fit and namely can form line and contact.
Referring to shown in Figure 1, this clamping device also comprise can provide respectively to cylindrical tube 1, dull and stereotyped 2 cylindrical tube along horizontal left and right directions snap-in force hold down assembly 6 and flat board hold down assembly 5, cylindrical tube holds down assembly 6 and dull and stereotyped 5 two ends that are separately positioned on lower clamp body 33 that hold down assembly, the cylindrical tube snap-in force that 6 pairs of cylindrical tube 1 apply that holds down assembly is different in same level side's upward direction with the snap-in force that the dull and stereotyped 5 pairs of flat boards 2 that hold down assembly apply, and can apply uniform and stable load to cylindrical tube 1 and dull and stereotyped 2 like this.During test, at first with cylindrical tube 1, dull and stereotyped 2 respectively by cylindrical tube clamp assemblies 3, dull and stereotyped clamp assemblies 4 grips, be in by dull and stereotyped clamp assemblies 4 clampings at this moment dull and stereotyped 2 and mention state, regulate respectively flat board according to the imposed load value of requirement of experiment again and hold down assembly 5, hold down assembly 6 snap-in force of cylindrical tube, simultaneously so that dull and stereotyped hold down assembly 5 and cylindrical tube 1 between vacate certain position, then upper clamp body 41 vertically is down to the above-mentioned position of vacating, and so that flat board 2 is relative with the side that cylindrical tube 1 is not held, at this moment regulate respectively again flat board and hold down assembly 5, cylindrical tube holds down assembly and 6 it is moved simultaneously to the centre, form line so that fit between the cylindrical tube 1 and dull and stereotyped 2 and contact and bear stable normal load, under the cooperation of single shaft fatigue testing machine, can test like this.
Referring to shown in Figure 1, in the present embodiment, cylindrical tube holds down assembly and 6 comprises the first mount pad 61 that is fixedly installed on lower clamp body 33 1 ends, offer a plurality of the first threaded holes that distribute along horizontal left and right directions on the first mount pad 61, the first screw rod 62 all has been threaded in all above-mentioned first threaded holes, the center of the first screw rod 62 offers the first through hole that extends vertically, this cylindrical tube holds down assembly and 6 also comprises a plurality of can be vertically corresponding the first pull bars 63 that penetrate in above-mentioned the first through hole, one end of the first pull bar 63 is fixedly installed on the block 31, the other end of the first pull bar 63 is fixing is provided with the first arm-tie 65, first elastic component 64 that can provide along horizontal left and right directions elastic-restoring force is provided between block 31 and the first screw rod 62 on the first pull bar 63, here, the first elastic component 64 is spring, the external diameter of this spring is greater than the aperture of the first through hole and less than the aperture of the first threaded hole, when rotating vertically the first screw rod 62 and adjusting the cooperation position of itself and the first threaded hole, it is the compressive state of capable of regulating spring, on the block 31 of the elastic-restoring force effect of spring, this elastic-restoring force can be passed on the cylindrical tube 1 by block 31, thereby compress cylindrical tube 1 along horizontal left and right directions.Also be provided with the first regulating element 66 on the first mount pad 61, this the first regulating element 66 is used for adjusting the spacing of along continuous straight runs between the first arm-tie 65 and the first mount pad 61, can adjust the position of cylindrical tube 1 on horizontal left and right directions by adjusting above-mentioned spacing.Here, the first regulating element 66 is the first set screw, the threaded one end connection of this first set screw is arranged on the first mount pad 61, its other end is kept out on a side of the first arm-tie 65, adjust the first set screw and on the first mount pad 61, screw the adjustment that above-mentioned position can be realized in the position, be specially: to inner rotary the first set screw, the part that the first set screw is exposed the first mount pad 61 increases, its end of keeping out on the first arm-tie 65 is outwards to promote the first arm-tie 65 outwards to move, the first arm-tie 65 namely spurs the first pull bar 63 outer moving, so just, spur outer the moving of block 31 and realize that cylindrical tube 1 is along the movement of horizontal left and right directions, inwardly rotation the first set screw just can realize cylindrical tube 1 edge and the rightabout movement of above-mentioned moving direction.
Referring to shown in Figure 1, in the present embodiment, flat board holds down assembly and 5 comprises the second mount pad 51 that is fixedly installed on lower clamp body 33 other ends, offer a plurality of the second threaded holes that distribute along horizontal left and right directions on the second mount pad 51, the second screw rod 52 all has been threaded in all second threaded holes, the center of the second screw rod 52 offers the second through hole that extends vertically, this flat board holds down assembly and 5 also comprises a plurality of can be vertically corresponding the second pull bars 53 that penetrate in the second through hole, be fixedly installed on respectively second arm-tie 58 at the second pull bar 53 two ends, baffle plate 55, being provided with between baffle plate 55 and the second screw rod 52 on the second screw rod 52 can be along the second elastic component 54 of horizontal left and right directions elastic-restoring force, what here adopt is spring, the external diameter of this spring is greater than the aperture of the second through hole and less than the aperture of the second threaded hole, adjusting the screw state of the second screw rod 52 in the second threaded hole is the flexible state of adjustable springs 54, thereby baffle plate 55 is applied snap-in force, when upper clamp body 41 is fallen, keep out on the bottom of the side that flat board 2 is installed on the upper clamp body 41 outer end of baffle plate 55, and snap-in force is passed to the compression that realizes on dull and stereotyped 2 dull and stereotyped 2 by upper clamp body 41.Also be provided with on the second mount pad 51 and can regulate the second arm-tie 58, the second regulating element 59 of the second mount pad 51 along continuous straight runs spacings, here, this second regulating element 59 is the second set screw, the threaded one end connection of this second set screw is arranged on the second mount pad 51, its other end is kept out on a side of the second arm-tie 58, adjust the second set screw and on the second mount pad 51, screw the adjustment that above-mentioned position can be realized in the position, its method of adjustment and the first set screw are similar, can realize baffle plate 55 slippage along horizontal left and right directions on the surface of lower clamp body 33 by adjusting the second set screw, thereby adjust the spacing between itself and the upper clamp body 41.In the present embodiment, the bottom of upper clamp body 41 opposite sides also offers groove 42, the opposite side here refers to the side that flat board 2 is installed on the clamp body 41, the outer end of baffle plate 55 has the projection 56 that can insert in the groove 42, can be provided with rotationally rolling bearing 57 on the outer end of projection 56, the axial line of rolling bearing 57 distributes along horizontal fore-and-aft direction, rolling bearing 57 can rollably be supported on the cell wall of groove 42 when upper clamp body 41 moves up and down along the vertical direction, like this, flat board holds down assembly 5 pairs of flat boards 2 when applying snap-in force, by rolling bearing 57 snap-in force is acted on and to be passed to again on the upper clamp body 41 on dull and stereotyped 2, can effectively reduce upper clamp body 41 and the dull and stereotyped component vertically that holds down assembly and be subject on 5, thereby avoid the component of this vertical direction on the impact of experimental result.
In order to apply uniform and stable load to cylindrical tube 1 and dull and stereotyped 2 in the process that guarantees to test, the axial line of all first pull bars 63, the second pull bar 53 must be in the same plane.In the present embodiment, the first threaded hole has two on the first mount pad 61, the second threaded hole has two on the second mount pad 51, accordingly, the first screw rod 62, the first pull bar 63, the second screw rod 52, the second pull bar 53 are provided with two, the axial line of two the second pull bars 53 extends along same rectilinear direction with the axial line of two the first pull bars 63 respectively, and these two straight lines are in the same plane.
Below the concrete course of work of setting forth lower present embodiment:
Referring to shown in Figure 1, before the experiment beginning, cylindrical tube 1 grips by cylindrical tube clamp assemblies 3, dull and stereotyped 2 are fixed on the clamp body 41, and upper clamp body 41 is arranged on and is positioned at the state of mentioning on the single shaft fatigue testing machine, at first regulate respectively the first screw rod 62 according to the imposed load value of requirement of experiment, the position of the second screw rod 52, namely determine respectively the first elastic component 64, the compressed length of the second elastic component 54, then respectively to inner rotary the first set screw 66 and the second set screw 59, it is compressed with the first arm-tie 65 and the second arm-tie 58 respectively, and then so that the first arm-tie 65, the second arm-tie 58 is respectively by pulling the first pull bar 63, the second pull bar 53 pulling blocks 31, baffle plate 55 moves to two ends respectively, thereby so that vacate enough positions between the side that cylindrical tube 1 is not held and the rolling bearing 57, at this moment upper clamp body 41 is down to the above-mentioned position of vacating, inwardly rotate respectively again the first set screw 66 and the second set screw 59, make its respectively with the first arm-tie 65, the second arm-tie 58 breaks away from, such the first pull bar 63, the second pull bar 53 just promotes respectively block 31, baffle plate 55 moves to the centre, block 31 moves to the centre until cylindrical tube 1 and dull and stereotyped 2 fits and forms line and contact, baffle plate 55 moves to the centre until rolling bearing 57 is conflicted till on the cell wall of upper clamp body 41 upper grooves 42, at this moment the elastic acting force of the first elastic component 64 acts on the cylindrical tube 1 by block 31, the elastic acting force of the second elastic component 54 is by baffle plate 55, rolling bearing 57, upper clamp body 41 acts on dull and stereotyped 2, so just, the position that cylindrical tube 1 is contacted with dull and stereotyped 2 phase lines provides the normal load of stable and uniform, under the cooperation of single shaft fatigue testing machine, can manage like this-dull and stereotyped line contact fretting wear tested.The retained part of clamp body 41 does not bear moment of torsion on need guaranteeing on the single shaft fatigue tester when regulating, and exists if any moment of torsion, then need finely tune the second screw rod 52.When arranging, can monitor the rotation status of the first screw rod 62, the second screw rod 52 respectively, thereby can regulate accurately cylindrical tube 1 and dull and stereotyped 2 snap-in forces that are subject to.
In sum, pipe of the present utility model-dull and stereotyped line contact fretting wear experiment with in the clamping device by cylindrical tube clamp assemblies 3 is set, dull and stereotyped clamp assemblies 4 is respectively to experiment sample cylindrical tube 1, dull and stereotyped 2 carry out stable clamping, by being set, cylindrical tube holds down assembly 6 again, flat board holds down assembly and 5 provides respectively cylindrical tube 1, dull and stereotyped 2 along the opposite snap-in force of horizontal left and right directions, so just so that dull and stereotyped 2 with cylindrical tube 1 between form line and contact and bear the normal load of stable and uniform, under the cooperation of single shaft fatigue testing machine, can manage-dull and stereotyped line contacts fretting wear and tested.This clamping device is simple in structure, easy to operate, in experimentation, can effectively control the small tangential displacement amplitude of cylindrical tube 1 and dull and stereotyped 2 and apply quantitatively normal load, can test in conjunction with existing single shaft fatigue testing machine, do not need to introduce again the twin shaft fretting apparatus, reduced experimental cost.
Above-described embodiment only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with technique can understand content of the present utility model and according to this enforcement, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (8)
1. pipe-dull and stereotyped line contact fretting wear is tested and is used clamping device, be arranged at and be used for pipe-dull and stereotyped line contact fretting wear experiment clamping experiment cylindrical tube on the testing machine, dull and stereotyped, it is characterized in that: described clamping device comprises the cylindrical tube clamp assemblies for the described cylindrical tube of clamping, the dull and stereotyped clamp assemblies that is used for the described flat board of clamping, described cylindrical tube clamp assemblies comprises the lower clamp body, be fixedly installed on the block mount pad on the described lower clamp body, can be arranged on slippingly block on the described block mount pad along horizontal left and right directions, can penetrate the pressing plate in the described cylindrical tube tube chamber, described pressing plate is located in the tube chamber of described cylindrical tube, the two ends that described pressing plate passes described cylindrical tube tube chamber are fixedly installed on respectively on the described block, described block and the contacted end face of described cylindrical tube, described pressing plate and the contacted end face of described cylindrical tube are respectively the lateral profile with described cylindrical tube, the arc surface that the tube chamber profile is consistent, described dull and stereotyped clamp assemblies comprises the upper clamp body that vertically can be arranged on up and down on the described testing machine, described flat board is arranged on a side of described upper clamp body bottom regularly, described cylindrical tube, described flat board all extends along horizontal fore-and-aft direction on described clamping device, described clamping device also comprises can be provided respectively described cylindrical tube, described flat board holds down assembly along the cylindrical tube of horizontal left and right directions snap-in force, flat board holds down assembly, described cylindrical tube holds down assembly, described flat board holds down assembly and is separately positioned on the two ends of described lower clamp body, and described cylindrical tube hold down assembly the snap-in force that described flat board is applied of snap-in force that described cylindrical tube is applied and described flat board that holds down assembly is different in same level right and left upward direction.
2. pipe according to claim 1-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: described cylindrical tube holds down assembly and comprises the first mount pad that is fixedly installed on described lower clamp body one end, offer a plurality of the first threaded holes that distribute along horizontal left and right directions on described the first mount pad, the first screw rod all has been threaded in all described first threaded holes, the center of described the first screw rod offers the first through hole that extends vertically, described cylindrical tube holds down assembly and also comprises a plurality of first pull bars that can penetrate vertically in described the first through hole, one end of described the first pull bar is fixedly installed on the described block, between described block and described the first screw rod, be provided with first elastic component that can provide along horizontal left and right directions elastic-restoring force on described the first pull bar, the external diameter of described the first elastic component is greater than the aperture of described the first through hole and less than the aperture of described the first threaded hole, the other end of all described the first pull bars is fixedly installed the first arm-tie, is provided with on described the first mount pad and can regulates described the first arm-tie, the first regulating element of along continuous straight runs spacing between described the first mount pad;
Described flat board holds down assembly and comprises the second mount pad that is fixedly installed on the described lower clamp body other end, offer a plurality of the second threaded holes that distribute along horizontal left and right directions on described the second mount pad, the second screw rod all has been threaded in all described second threaded holes, the center of described the second screw rod offers the second through hole that extends vertically, described flat board holds down assembly and also comprises a plurality of vertically corresponding the second pull bars that penetrate in described the second through hole, be fixedly installed on respectively second arm-tie at described the second pull bar two ends, baffle plate, between described baffle plate and described the second screw rod, be provided with second elastic component that can provide along horizontal left and right directions elastic-restoring force on described the second screw rod, the external diameter of described the second elastic component is greater than the aperture of described the second through hole and less than the aperture of described the second threaded hole, be provided with on described the second mount pad and can regulate described the second arm-tie, the second regulating element of described the second mount pad along continuous straight runs spacing, all described first pull bars, the axial line of described the second pull bar is in the same plane.
3. pipe according to claim 2-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: the above first threaded hole of described the first mount pad has two, the above second threaded hole of described the second mount pad has two, accordingly, described the first screw rod, described the first pull bar, described the second screw rod, described the second pull bar all have two, and the axial line of described two the second pull bars extends along same rectilinear direction with the axial line of described two the first pull bars respectively.
4. clamping device is used in pipe according to claim 2-dull and stereotyped line contact fretting wear experiment, and it is characterized in that: described the first elastic component, described the second elastic component are spring.
5. pipe according to claim 2-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: described the first regulating element is the first set screw, the threaded one end connection of described the first set screw is arranged on described the first mount pad, and the other end of described the first set screw is kept out on a side of described the first arm-tie.
6. pipe according to claim 2-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: described the second regulating element is the second set screw, the threaded one end connection of described the second set screw is arranged on described the second mount pad, and the other end of described the second set screw is kept out on a side of described the second arm-tie.
7. pipe according to claim 2-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: the bottom of described upper clamp body opposite side offers groove, the outer end of described baffle plate has the projection that can insert in the described groove, can be provided with rotationally a rolling bearing on the outer end of described projection, the axial line of described rolling bearing distributes along horizontal fore-and-aft direction, and described rolling bearing can rollably be supported on the cell wall of described groove along the vertical direction.
8. pipe according to claim 1-dull and stereotyped line contact fretting wear is tested and is used clamping device, it is characterized in that: described block mount pad comprises the fixation clip that is fixedly installed on the height piece that lays respectively at described block rear and front end on the described lower clamp body, is fixedly installed on described height piece top, described block has at least part to be housed in the cavity of described fixation clip, described height piece, the formation of described lower clamp body, and the gap between the top end face of the bottom end face of described fixation clip and described block is not more than 0.25 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483999 CN202886185U (en) | 2012-09-21 | 2012-09-21 | Clamping device for pipe-plate line contact fretting wear test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220483999 CN202886185U (en) | 2012-09-21 | 2012-09-21 | Clamping device for pipe-plate line contact fretting wear test |
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| CN202886185U true CN202886185U (en) | 2013-04-17 |
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| CN 201220483999 Withdrawn - After Issue CN202886185U (en) | 2012-09-21 | 2012-09-21 | Clamping device for pipe-plate line contact fretting wear test |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866058A (en) * | 2012-09-21 | 2013-01-09 | 苏州热工研究院有限公司 | Clamping device for pipe-flat plate line contact fretting wear experiments |
| CN104297058A (en) * | 2014-10-29 | 2015-01-21 | 中北大学 | Test piece clamping and loading device for fretting fatigue test |
| CN104914042A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Fretting wear testing machine in high temperature and high pressure water or steam environment |
| CN105021450A (en) * | 2015-07-21 | 2015-11-04 | 西南交通大学 | Multi-sample parallel experiment clamp for providing continuous clamp force |
| CN106442182A (en) * | 2016-09-20 | 2017-02-22 | 四川大学 | High-temperature micro-motion fatigue experiment clamping and loading device |
| CN107282514A (en) * | 2017-08-14 | 2017-10-24 | 无锡翔隆机电股份有限公司 | Engine cylinder-body cylinder cap rotary drum washer |
| CN109297850A (en) * | 2018-12-14 | 2019-02-01 | 中国航发沈阳发动机研究所 | Reciprocating friction abrasion test device |
| CN110082084A (en) * | 2019-05-07 | 2019-08-02 | 燕山大学 | A kind of interference fit face is flat-and it turns round compound fretting damage and tests structure |
| CN110132739A (en) * | 2019-05-24 | 2019-08-16 | 北京航空航天大学 | A kind of fretting fatigue testing normal load loading device and method |
| CN110160950A (en) * | 2018-02-12 | 2019-08-23 | 宝山钢铁股份有限公司 | Friction coefficient measuring apparatus |
| CN111650063A (en) * | 2020-07-02 | 2020-09-11 | 天津科技大学 | Normal load loading device based on single-shaft fatigue testing machine |
-
2012
- 2012-09-21 CN CN 201220483999 patent/CN202886185U/en not_active Withdrawn - After Issue
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102866058B (en) * | 2012-09-21 | 2014-06-25 | 苏州热工研究院有限公司 | Clamping device for pipe-flat plate line contact fretting wear experiments |
| CN102866058A (en) * | 2012-09-21 | 2013-01-09 | 苏州热工研究院有限公司 | Clamping device for pipe-flat plate line contact fretting wear experiments |
| CN104297058A (en) * | 2014-10-29 | 2015-01-21 | 中北大学 | Test piece clamping and loading device for fretting fatigue test |
| CN104297058B (en) * | 2014-10-29 | 2016-10-05 | 中北大学 | A kind of fretting fatigue testing test specimen clamping and charger |
| CN104914042B (en) * | 2015-07-07 | 2017-10-03 | 苏州热工研究院有限公司 | High-temperature high pressure water or steam ambient fretting apparatus |
| CN104914042A (en) * | 2015-07-07 | 2015-09-16 | 苏州热工研究院有限公司 | Fretting wear testing machine in high temperature and high pressure water or steam environment |
| CN105021450A (en) * | 2015-07-21 | 2015-11-04 | 西南交通大学 | Multi-sample parallel experiment clamp for providing continuous clamp force |
| CN106442182A (en) * | 2016-09-20 | 2017-02-22 | 四川大学 | High-temperature micro-motion fatigue experiment clamping and loading device |
| CN107282514A (en) * | 2017-08-14 | 2017-10-24 | 无锡翔隆机电股份有限公司 | Engine cylinder-body cylinder cap rotary drum washer |
| CN110160950A (en) * | 2018-02-12 | 2019-08-23 | 宝山钢铁股份有限公司 | Friction coefficient measuring apparatus |
| CN109297850A (en) * | 2018-12-14 | 2019-02-01 | 中国航发沈阳发动机研究所 | Reciprocating friction abrasion test device |
| CN110082084A (en) * | 2019-05-07 | 2019-08-02 | 燕山大学 | A kind of interference fit face is flat-and it turns round compound fretting damage and tests structure |
| CN110132739A (en) * | 2019-05-24 | 2019-08-16 | 北京航空航天大学 | A kind of fretting fatigue testing normal load loading device and method |
| CN111650063A (en) * | 2020-07-02 | 2020-09-11 | 天津科技大学 | Normal load loading device based on single-shaft fatigue testing machine |
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Address after: The West Loop Jinchang District Suzhou city Jiangsu province 215004 No. 1788 Patentee after: Suzhou Nuclear Power Research Institute Co., Ltd. Patentee after: China General Nuclear Power Corporation Address before: The West Loop Jinchang District Suzhou city Jiangsu province 215004 No. 1788 Patentee before: Suzhou Nuclear Power Research Institute Co., Ltd. Patentee before: China Guangdong Nuclear Power Group Co., Ltd. |
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