CN103233952A - Vertical swing-rod holding device applicable to low-frequency internal-friction measurements - Google Patents
Vertical swing-rod holding device applicable to low-frequency internal-friction measurements Download PDFInfo
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- CN103233952A CN103233952A CN2013101331331A CN201310133133A CN103233952A CN 103233952 A CN103233952 A CN 103233952A CN 2013101331331 A CN2013101331331 A CN 2013101331331A CN 201310133133 A CN201310133133 A CN 201310133133A CN 103233952 A CN103233952 A CN 103233952A
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Abstract
The invention discloses a vertical swing-rod holding device applicable to low-frequency internal-friction measurements. The vertical swing-rod holding device mainly comprises a holding mechanism and an adjusting mechanism, wherein the holding mechanism is used for maintaining the horizontal direction, the adjusting mechanism is used for producing vertical displacement, the holding mechanism is connected with the adjusting mechanism in such a way that a bearing is matched with a bevel wheel groove, the deep groove ball bearing is arranged at the tail end of the holding mechanism, a wheel groove frame is arranged at the upper end of the adjusting mechanism, and the bevel wheel groove is arranged on the wheel groove frame. According to the method, the vertical swing-rod holding device applicable to low-frequency internal-friction measurements is skillful in design, simple in structure and low in manufacturing cost. The bevel wheel groove is matched with the bearing, so that the displacement of the adjusting mechanism in the vertical direction can be converted into position changes of the holding mechanism in the horizontal direction, and a clamping structure is pulled to achieve clamping of a vertical swing rod by a holding rod.
Description
Technical field
The present invention relates to detect the auxiliary device field, particularly relate to a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to.
Background technique
The measurement of low frequency in-fighting is finished at low frequency mechanics spectrometer.Sample is erect and is placed, and the lower end is fixed on fixed end, can not adjust, and the upper end is rectangular being fixed on the vertical pendulum bar freely, and the vertical pendulum bar is supported on the supporting mechanism by the cotton thread connection and uses counterweigh.Add a very little cyclic stress (stress of substantially horizontal) to free end, measure amplitude fading (free Attenuation Method) or the response lag of sample then and measure the in-fighting value in the phase angle (forced oscillation method) of stress.This just requires fixed end (lower end) consistent with free end (upper end) center line and perpendicular to the validity of substantially horizontal guarantee to measure.In the course of the work, owing to the situation that the cotton thread fracture maybe will be changed cotton thread occurs, the weight of vertical pendulum bar will be pressed on the sample like this, and sample is elongated, is pressed down easily.For fear of producing unnecessary measurement error or readjusting the supporting frame position, therefore, need the design hold-fast body to clamp the vertical pendulum bar.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to, can effectively clamp the vertical pendulum bar in the experiments of measuring of low frequency in-fighting, ensures the integrity of experiment.
For solving the problems of the technologies described above, the technological scheme that the present invention adopts provides a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to, it mainly comprises: keep the hold-fast body of horizontal position, the controlling mechanism of manufacturing vertical displacement; Cooperate the Placement of oblique race to link to each other with bearing between described hold-fast body and the controlling mechanism; Described hold-fast body end is provided with deep groove ball bearing, and the upper end of controlling mechanism is provided with the wheel truss; Describedly take turns on the truss and be provided with oblique race.
Preferably, described hold-fast body comprises: guide rod and clamping arrangement; One end of guide rod and clamping arrangement are hinged by axle sleeve, and its other end connects deep groove ball bearing.
Preferably, described clamping arrangement is a link motion mechanism, and it mainly forms by holding bar and rod hinge connection tightly; The described bar inboard of holding tightly is provided with the groove of being convenient to clamp article.
Preferably, described controlling mechanism comprises: wheel truss, vertical push rod and screw thread fine tuning structure; Described vertical push rod upper end fast pulley truss, vertically push rod is engaged in the center hole of screw thread fine tuning structure in the mode that is threaded.
Preferably, described screw thread fine tuning structure comprises: hold flange tightly, adjust piece and adjusting knob; The described flange of holding tightly is threaded with adjusting knob; Adjusting piece is engaged in and holds tightly in the flange inner chamber and pass through screw threads for fastening.
The invention has the beneficial effects as follows: a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to is provided, deft design, simple in structure, low cost of manufacture.Utilize oblique race and bearing to cooperate, the displacement of controlling mechanism in the vertical direction can be converted to hold-fast body change in location in the horizontal direction, thereby the pulling clamping arrangement realizes holding tightly the clamping action of pole pair vertical pendulum bar.
Description of drawings
Fig. 1 is a kind of structural representation that is applicable to the measuring vertical pendulum bar of low frequency in-fighting enclasp device of the present invention;
Fig. 2 is a kind of partial sectional view that is applicable to the measuring vertical pendulum bar of low frequency in-fighting enclasp device of the present invention;
Fig. 3 is a kind of plan view that is applicable to the measuring vertical pendulum bar of low frequency in-fighting enclasp device of the present invention;
Fig. 4 is the sectional view of screw thread fine tuning structure;
The mark of each parts is as follows in the accompanying drawing: 1, hold-fast body; 2, controlling mechanism; 3, supporting frame; 4, fixing frame; 5, guide sleeve; 11, guide rod; 12, clamping arrangement; 13, axle sleeve; 14, deep groove ball bearing; 21, wheel truss; 22, vertical push rod; 23, screw thread fine tuning structure; 121, hold bar tightly; 122, connecting rod; 123, groove; 231, hold flange tightly; 232, adjust piece; 233, adjusting knob; 234, seal ring; 235, spacer.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is described in detail, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
See also accompanying drawing 1 to Fig. 4, the embodiment of the invention comprises:
A kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to comprises: the hold-fast body 1 of horizontal position and the controlling mechanism 2 of Vertical direction, hold-fast body 1 and controlling mechanism 2 cooperate the required motion mode of generation work by bearing and skewed slot.Described hold-fast body 1 is at fixing its horizontal position that keeps down of supporting frame 3, in the center hole of supporting frame 3 and guide sleeve 5 is housed.
Hold-fast body 1 comprises: clamping arrangement 12 and guide rod 11, guide rod 11 are engaged in the guide sleeve 5 of supporting frame 3 to keep the position of hold-fast body 1.As Fig. 2, guide rod 11 left ends axially on be processed with opening slot, cooperate the connecting end of clamping arrangement 12 in the opening slot, cell wall is provided with screw, cooperates axle sleeve 13 in the screw, and fastening by screw.Two planes of right-hand member processing of described guide rod 11, guide rod is connected guide rod 11 with pin apart from the hole of 5mm position, right side processing Φ 5mm with bearing on the plane, pin and bearing transition fit, and spacing by jump ring.Bearing is selected deep groove ball bearing 14, model 685zz for use.
Controlling mechanism comprises: wheel truss 21, vertical push rod 22 and screw thread fine tuning structure 23.As Fig. 2, screw thread fine tuning structure 23 is vertically fixing, and its central shaft hole internal thread connects vertical push rod 22, vertically the upper end fast pulley truss 21 of push rod.Be processed with the deep groove ball bearing 14 that oblique race 211 cooperates in the hold-fast body on the wheel truss.Fixedly there is the fixing frame 4 of guiding usefulness on the right side of wheel truss, and wheel truss 21 right flanks are processed smooth and are close on the vertical plane of fixing frame 4; Fixing frame 4 adopts copper material to make, and its vertical plane is handled through surface finishing, and surface roughness is Ra3.2.
Clamping arrangement comprises: a pair of bar 121 and two connecting rods 122 held tightly.As Fig. 3, hold bar 121 tightly and be " L " type, by with link motion mechanism of connecting rod 122 hinged formation, the rounded end that each hinged place is equipped with between 13, two connecting rods 122 of copper axle sleeve links to each other with guide rod 11.Hold the groove 123 that bar left end 22.5mm place is provided with 9mm * 0.5mm tightly in the inner distance of holding club shaft tightly, when clamping motion, can clamp the vertical pendulum bar accurately.
Screw thread fine tuning structure 23 comprises: the holding flange 231 tightly, adjust piece 232 of stainless steel quality, spacer 235, adjusting knob 233 and seal ring 234; Seal ring is the rubber material.As Fig. 4, the interior internal thread of the M24 * 25mm on the outside thread of holding the M24 * 22mm on the flange 231 tightly and adjusting knob 233 inwalls is connected.Holding tightly in the inner chamber of flange 231 has seal ring 234 and spacer 235 by interference fit, and the outside of spacer is to adjust piece, adjusts piece 232 and is connected with the inner thread of holding flange 231 tightly, inwardly compresses spacer and seal ring.Described vertical push rod 22 passes the center hole of screw thread fine tuning structure 23, successively with hold flange tightly and realize Spielpassung, realize transition fit, be threaded with adjustment piece and adjusting knob realization with seal ring and spacer.
Before use, at first utilize the tapped hole of holding tightly on flange 231 peripheries that screw thread fine tuning structure 23 is fixing, the vertical push rod 22 of connecting wheel truss 21 is installed on the screw thread fine tuning structure 23, highly install fixing frame 4 according to wheel truss 21.Height according to oblique race 211 on the wheel truss installs hold-fast body 1, guarantees that deep groove ball bearing 14 is engaged in the oblique race.Hold-fast body 1 is maintained horizontal position, and pass through supporting frame 5 with its support.In the using process, by the adjusting knob 233 in the rotation screw thread fine tuning structure 23, make the displacement that vertical push rod 22 produces on the vertical directions; The movement that under the leading role of fixing frame 4, keeps up of wheel truss 21, the deep groove ball bearing 14 of hold-fast body 1 is limited in the oblique race, because hold-fast body 1 horizontal position fixes, so along with the variation of the vertical position of oblique race 211, hold-fast body 1 can produce the displacement of substantially horizontal.
The invention provides a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to, deft design, simple in structure, low cost of manufacture; The levogyrate inner thread nominal diameter of its adjusting knob is 4 times of its dextrorotation internal thread nominal diameter, and by the rotation adjusting knob, adjusting knob moves up and down the helical pitch that vertical push rod is moved up and down and becomes multiple to increase; Vertical push rod upper end fast pulley truss, bearing rolls at the race of wheel truss, and bearing is connected with guide rod, can directly be converted to the vertical displacement of vertical push rod the straight line motion of guide rod; The guide rod substantially horizontal moves, and drives the clamping arrangement motion, realizes holding tightly bar and opens and clamp action, and is simple in structure.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes description of the present invention to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (5)
1. one kind is applicable to the measuring vertical pendulum bar of low frequency in-fighting enclasp device; It is characterized in that: described vertical pendulum bar enclasp device comprises: keep the hold-fast body (1) of horizontal position, the controlling mechanism (2) of manufacturing vertical displacement; Cooperate the Placement of skewed slot to link to each other with bearing between described hold-fast body (1) and the controlling mechanism (2); Described hold-fast body (1) end is provided with deep groove ball bearing (14), and the upper end of controlling mechanism (2) is provided with wheel truss (21); Oblique race (221) is gone up and be provided with to the described truss (21) of taking turns.
2. a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to according to claim 1, it is characterized in that: described hold-fast body (1) comprising: guide rod (11) and clamping arrangement (12); One end of guide rod (11) and clamping arrangement (12) are hinged by axle sleeve (13), and its other end connects deep groove ball bearing (14).
3. a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to according to claim 2, it is characterized in that: described clamping arrangement (12) is a link motion mechanism, it is mainly by holding bar (121) and the hinged formation of connecting rod (122) tightly; Described bar (121) inboard of holding tightly is provided with the groove (123) of being convenient to clamp article.
4. a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to according to claim 1, it is characterized in that: described controlling mechanism (2) comprising: wheel truss (21), vertically push rod (22) and screw thread fine tuning structure (23); Described vertical push rod (22) upper end fast pulley truss (21), vertically push rod (22) is engaged in the center hole of screw thread fine tuning structure (23) in the mode that is threaded.
5. a kind of measuring vertical pendulum bar of low frequency in-fighting enclasp device that is applicable to according to claim 4, it is characterized in that: described screw thread fine tuning structure (23) comprising: hold flange (231) tightly, adjust piece (232) and adjusting knob (233); The described flange (231) of holding tightly is threaded with adjusting knob (233); Adjusting piece (232) is engaged in and holds tightly in flange (231) inner chamber and pass through screw threads for fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310133133.1A CN103233952B (en) | 2013-04-17 | 2013-04-17 | Vertical swing-rod holding device applicable to low-frequency internal-friction measurements |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310133133.1A CN103233952B (en) | 2013-04-17 | 2013-04-17 | Vertical swing-rod holding device applicable to low-frequency internal-friction measurements |
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| CN103233952A true CN103233952A (en) | 2013-08-07 |
| CN103233952B CN103233952B (en) | 2015-05-13 |
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| CN201310133133.1A Active CN103233952B (en) | 2013-04-17 | 2013-04-17 | Vertical swing-rod holding device applicable to low-frequency internal-friction measurements |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655821A (en) * | 2017-11-14 | 2018-02-02 | 苏州市职业大学 | Change the frequency modulation bascule of free damping frequency in a kind of low frequency mechanical spectrometer |
| CN108554705A (en) * | 2017-12-19 | 2018-09-21 | 芜湖市夏氏世家家具有限公司 | A kind of big face mopping device of plank |
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2013
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| US20020178857A1 (en) * | 2001-06-01 | 2002-12-05 | Nsk Ltd. | Steering column holding device for car |
| CN202066831U (en) * | 2011-05-10 | 2011-12-07 | 中国科学院合肥物质科学研究院 | Electromagnetic type electromagnetic type internal friction gauge |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655821A (en) * | 2017-11-14 | 2018-02-02 | 苏州市职业大学 | Change the frequency modulation bascule of free damping frequency in a kind of low frequency mechanical spectrometer |
| CN107655821B (en) * | 2017-11-14 | 2024-06-04 | 苏州市职业大学 | Frequency modulation balancing device for changing free attenuation frequency on low-frequency mechanical spectrometer |
| CN108554705A (en) * | 2017-12-19 | 2018-09-21 | 芜湖市夏氏世家家具有限公司 | A kind of big face mopping device of plank |
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| CN103233952B (en) | 2015-05-13 |
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